Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

37 files changed, 14459 insertions, 0 deletions

diff --git a/source4/ntvfs/posix/posix_eadb.c b/source4/ntvfs/posix/posix_eadb.c
new file mode 100644
index 0000000..e08597c
--- /dev/null
+++ b/source4/ntvfs/posix/posix_eadb.c
@@ -0,0 +1,295 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - xattr support using a tdb
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/tdb_wrap/tdb_wrap.h"
+#ifdef WITH_NTVFS_FILESERVER
+#include "vfs_posix.h"
+#endif
+#include "posix_eadb.h"
+
+#define XATTR_LIST_ATTR ".xattr_list"
+
+/*
+  we need to maintain a list of attributes on each file, so that unlink
+  can automatically clean them up
+*/
+static NTSTATUS posix_eadb_add_list(struct tdb_wrap *ea_tdb, TALLOC_CTX *ctx, const char *attr_name,
+				   const char *fname, int fd)
+{
+	DATA_BLOB blob;
+	TALLOC_CTX *mem_ctx;
+	const char *s;
+	NTSTATUS status;
+	size_t len;
+
+	if (strcmp(attr_name, XATTR_LIST_ATTR) == 0) {
+		return NT_STATUS_OK;
+	}
+
+	mem_ctx = talloc_new(ctx);
+
+	status = pull_xattr_blob_tdb_raw(ea_tdb, mem_ctx, XATTR_LIST_ATTR,
+				     fname, fd, 100, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		blob = data_blob(NULL, 0);
+	}
+
+	for (s=(const char *)blob.data; s < (const char *)(blob.data+blob.length); s += strlen(s) + 1) {
+		if (strcmp(attr_name, s) == 0) {
+			talloc_free(mem_ctx);
+			return NT_STATUS_OK;
+		}
+	}
+
+	len = strlen(attr_name) + 1;
+
+	blob.data = talloc_realloc(mem_ctx, blob.data, uint8_t, blob.length + len);
+	if (blob.data == NULL) {
+		talloc_free(mem_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+	memcpy(blob.data + blob.length, attr_name, len);
+	blob.length += len;
+
+	status = push_xattr_blob_tdb_raw(ea_tdb, XATTR_LIST_ATTR, fname, fd, &blob);
+	talloc_free(mem_ctx);
+
+	return status;
+}
+
+/*
+  form a key for using in the ea_tdb
+*/
+static NTSTATUS get_ea_tdb_key(TALLOC_CTX *mem_ctx,
+			      const char *attr_name,
+			      const char *fname, int fd,
+			      TDB_DATA *key)
+{
+	struct stat st;
+	size_t len = strlen(attr_name);
+
+	if (fd == -1) {
+		if (stat(fname, &st) == -1) {
+			return NT_STATUS_NOT_FOUND;
+		}
+	} else {
+		if (fstat(fd, &st) == -1) {
+			return NT_STATUS_NOT_FOUND;
+		}
+	}
+
+	key->dptr = talloc_array(mem_ctx, uint8_t, 16 + len);
+	if (key->dptr == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	key->dsize = 16 + len;
+
+	SBVAL(key->dptr, 0, st.st_dev);
+	SBVAL(key->dptr, 8, st.st_ino);
+	memcpy(key->dptr+16, attr_name, len);
+
+	return NT_STATUS_OK;
+}
+
+
+
+/*
+  pull a xattr as a blob, using the ea_tdb_context tdb
+*/
+NTSTATUS pull_xattr_blob_tdb_raw(struct tdb_wrap *ea_tdb,
+			     TALLOC_CTX *mem_ctx,
+			     const char *attr_name,
+			     const char *fname,
+			     int fd,
+			     size_t estimated_size,
+			     DATA_BLOB *blob)
+{
+	TDB_DATA tkey, tdata;
+	NTSTATUS status;
+
+	status = get_ea_tdb_key(mem_ctx, attr_name, fname, fd, &tkey);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	tdata = tdb_fetch(ea_tdb->tdb, tkey);
+	if (tdata.dptr == NULL) {
+		return NT_STATUS_NOT_FOUND;
+	}
+
+	*blob = data_blob_talloc(mem_ctx, tdata.dptr, tdata.dsize);
+	free(tdata.dptr);
+	if (blob->data == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  push a xattr as a blob, using ea_tdb
+*/
+NTSTATUS push_xattr_blob_tdb_raw(struct tdb_wrap *ea_tdb,
+			     const char *attr_name,
+			     const char *fname,
+			     int fd,
+			     const DATA_BLOB *blob)
+{
+	TDB_DATA tkey, tdata;
+	NTSTATUS status;
+	TALLOC_CTX *mem_ctx = talloc_new(ea_tdb);
+	if (!mem_ctx) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = get_ea_tdb_key(mem_ctx, attr_name, fname, fd, &tkey);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return status;
+	}
+
+	tdata.dptr = blob->data;
+	tdata.dsize = blob->length;
+
+	if (tdb_chainlock(ea_tdb->tdb, tkey) != 0) {
+		talloc_free(mem_ctx);
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	status = posix_eadb_add_list(ea_tdb,mem_ctx, attr_name, fname, fd);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		goto done;
+	}
+
+	if (tdb_store(ea_tdb->tdb, tkey, tdata, TDB_REPLACE) != 0) {
+		status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+done:
+	tdb_chainunlock(ea_tdb->tdb, tkey);
+	talloc_free(mem_ctx);
+	return status;
+}
+
+
+/*
+  delete a xattr
+*/
+NTSTATUS delete_posix_eadb_raw(struct tdb_wrap *ea_tdb, const char *attr_name,
+			  const char *fname, int fd)
+{
+	TDB_DATA tkey;
+	NTSTATUS status;
+
+	status = get_ea_tdb_key(NULL, attr_name, fname, fd, &tkey);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (tdb_delete(ea_tdb->tdb, tkey) != 0) {
+		talloc_free(tkey.dptr);
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	talloc_free(tkey.dptr);
+	return NT_STATUS_OK;
+}
+
+
+/*
+  delete all xattrs for a file
+*/
+NTSTATUS unlink_posix_eadb_raw(struct tdb_wrap *ea_tdb, const char *fname, int fd)
+{
+	TALLOC_CTX *mem_ctx = talloc_new(ea_tdb);
+	DATA_BLOB blob;
+	const char *s;
+	NTSTATUS status;
+
+	status = pull_xattr_blob_tdb_raw(ea_tdb, mem_ctx, XATTR_LIST_ATTR,
+				     fname, fd, 100, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return NT_STATUS_OK;
+	}
+
+	for (s=(const char *)blob.data; s < (const char *)(blob.data+blob.length); s += strlen(s) + 1) {
+		delete_posix_eadb_raw(ea_tdb, s, fname, -1);
+	}
+
+	status = delete_posix_eadb_raw(ea_tdb, XATTR_LIST_ATTR, fname, fd);
+	talloc_free(mem_ctx);
+	return status;
+}
+
+/*
+  list all xattrs for a file
+*/
+NTSTATUS list_posix_eadb_raw(struct tdb_wrap *ea_tdb, TALLOC_CTX *mem_ctx,
+			    const char *fname, int fd,
+			    DATA_BLOB *list)
+{
+	return pull_xattr_blob_tdb_raw(ea_tdb, mem_ctx, XATTR_LIST_ATTR,
+				     fname, fd, 100, list);
+}
+
+#ifdef WITH_NTVFS_FILESERVER
+NTSTATUS pull_xattr_blob_tdb(struct pvfs_state *pvfs_state,
+			     TALLOC_CTX *mem_ctx,
+			     const char *attr_name,
+			     const char *fname,
+			     int fd,
+			     size_t estimated_size,
+			     DATA_BLOB *blob)
+{
+	return pull_xattr_blob_tdb_raw(pvfs_state->ea_db,mem_ctx,attr_name,fname,fd,estimated_size,blob);
+}
+
+NTSTATUS push_xattr_blob_tdb(struct pvfs_state *pvfs_state,
+			     const char *attr_name,
+			     const char *fname,
+			     int fd,
+			     const DATA_BLOB *blob)
+{
+	return push_xattr_blob_tdb_raw(pvfs_state->ea_db, attr_name, fname, fd, blob);
+}
+
+/*
+  delete a xattr
+*/
+NTSTATUS delete_posix_eadb(struct pvfs_state *pvfs_state, const char *attr_name,
+			  const char *fname, int fd)
+{
+	return delete_posix_eadb_raw(pvfs_state->ea_db,
+				    attr_name, fname, fd);
+}
+
+/*
+  delete all xattrs for a file
+*/
+NTSTATUS unlink_posix_eadb(struct pvfs_state *pvfs_state, const char *fname)
+{
+	return unlink_posix_eadb_raw(pvfs_state->ea_db, fname, -1);
+}
+
+#endif
diff --git a/source4/ntvfs/posix/posix_eadb.h b/source4/ntvfs/posix/posix_eadb.h
new file mode 100644
index 0000000..14b9439
--- /dev/null
+++ b/source4/ntvfs/posix/posix_eadb.h
@@ -0,0 +1,20 @@
+/*
+   Unix SMB/CIFS implementation. Xattr manipulation bindings.
+   Copyright (C) Andrew Bartlett 2011
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+struct pvfs_state;
+#include "source4/ntvfs/posix/posix_eadb_proto.h"
diff --git a/source4/ntvfs/posix/pvfs_acl.c b/source4/ntvfs/posix/pvfs_acl.c
new file mode 100644
index 0000000..d284585
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_acl.c
@@ -0,0 +1,1083 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - ACL support
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/passwd.h"
+#include "auth/auth.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/xattr.h"
+#include "libcli/security/security.h"
+#include "param/param.h"
+#include "../lib/util/unix_privs.h"
+#include "lib/util/samba_modules.h"
+
+/* the list of currently registered ACL backends */
+static struct pvfs_acl_backend {
+	const struct pvfs_acl_ops *ops;
+} *backends = NULL;
+static int num_backends;
+
+/*
+  register a pvfs acl backend. 
+
+  The 'name' can be later used by other backends to find the operations
+  structure for this backend.  
+*/
+NTSTATUS pvfs_acl_register(TALLOC_CTX *ctx, const struct pvfs_acl_ops *ops)
+{
+	struct pvfs_acl_ops *new_ops;
+
+	if (pvfs_acl_backend_byname(ops->name) != NULL) {
+		DEBUG(0,("pvfs acl backend '%s' already registered\n", ops->name));
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	backends = talloc_realloc(ctx, backends,
+			struct pvfs_acl_backend, num_backends+1);
+	NT_STATUS_HAVE_NO_MEMORY(backends);
+
+	new_ops = (struct pvfs_acl_ops *)talloc_memdup(backends, ops, sizeof(*ops));
+	new_ops->name = talloc_strdup(new_ops, ops->name);
+
+	backends[num_backends].ops = new_ops;
+
+	num_backends++;
+
+	DEBUG(3,("NTVFS backend '%s' registered\n", ops->name));
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  return the operations structure for a named backend
+*/
+const struct pvfs_acl_ops *pvfs_acl_backend_byname(const char *name)
+{
+	int i;
+
+	for (i=0;i<num_backends;i++) {
+		if (strcmp(backends[i].ops->name, name) == 0) {
+			return backends[i].ops;
+		}
+	}
+
+	return NULL;
+}
+
+NTSTATUS pvfs_acl_init(void)
+{
+	static bool initialized = false;
+#define _MODULE_PROTO(init) extern NTSTATUS init(TALLOC_CTX *);
+	STATIC_pvfs_acl_MODULES_PROTO;
+	init_module_fn static_init[] = { STATIC_pvfs_acl_MODULES };
+	init_module_fn *shared_init;
+
+	if (initialized) return NT_STATUS_OK;
+	initialized = true;
+
+	shared_init = load_samba_modules(NULL, "pvfs_acl");
+
+	run_init_functions(NULL, static_init);
+	run_init_functions(NULL, shared_init);
+
+	talloc_free(shared_init);
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  map a single access_mask from generic to specific bits for files/dirs
+*/
+static uint32_t pvfs_translate_mask(uint32_t access_mask)
+{
+	if (access_mask & SEC_MASK_GENERIC) {
+		if (access_mask & SEC_GENERIC_READ)    access_mask |= SEC_RIGHTS_FILE_READ;
+		if (access_mask & SEC_GENERIC_WRITE)   access_mask |= SEC_RIGHTS_FILE_WRITE;
+		if (access_mask & SEC_GENERIC_EXECUTE) access_mask |= SEC_RIGHTS_FILE_EXECUTE;
+		if (access_mask & SEC_GENERIC_ALL)     access_mask |= SEC_RIGHTS_FILE_ALL;
+		access_mask &= ~SEC_MASK_GENERIC;
+	}
+	return access_mask;
+}
+
+
+/*
+  map any generic access bits in the given acl
+  this relies on the fact that the mappings for files and directories
+  are the same
+*/
+static void pvfs_translate_generic_bits(struct security_acl *acl)
+{
+	unsigned i;
+
+	if (!acl) return;
+
+	for (i=0;i<acl->num_aces;i++) {
+		struct security_ace *ace = &acl->aces[i];
+		ace->access_mask = pvfs_translate_mask(ace->access_mask);
+	}
+}
+
+
+/*
+  setup a default ACL for a file
+*/
+static NTSTATUS pvfs_default_acl(struct pvfs_state *pvfs,
+				 struct ntvfs_request *req,
+				 struct pvfs_filename *name, int fd, 
+				 struct security_descriptor **psd)
+{
+	struct security_descriptor *sd;
+	NTSTATUS status;
+	struct security_ace ace;
+	mode_t mode;
+	struct id_map *ids;
+
+	*psd = security_descriptor_initialise(req);
+	if (*psd == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	sd = *psd;
+
+	ids = talloc_zero_array(sd, struct id_map, 2);
+	NT_STATUS_HAVE_NO_MEMORY(ids);
+
+	ids[0].xid.id = name->st.st_uid;
+	ids[0].xid.type = ID_TYPE_UID;
+	ids[0].sid = NULL;
+
+	ids[1].xid.id = name->st.st_gid;
+	ids[1].xid.type = ID_TYPE_GID;
+	ids[1].sid = NULL;
+
+	status = wbc_xids_to_sids(ids, 2);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	sd->owner_sid = talloc_steal(sd, ids[0].sid);
+	sd->group_sid = talloc_steal(sd, ids[1].sid);
+
+	talloc_free(ids);
+	sd->type |= SEC_DESC_DACL_PRESENT;
+
+	mode = name->st.st_mode;
+
+	/*
+	  we provide up to 4 ACEs
+	    - Owner
+	    - Group
+	    - Everyone
+	    - Administrator
+	 */
+
+
+	/* setup owner ACE */
+	ace.type = SEC_ACE_TYPE_ACCESS_ALLOWED;
+	ace.flags = 0;
+	ace.trustee = *sd->owner_sid;
+	ace.access_mask = 0;
+
+	if (mode & S_IRUSR) {
+		if (mode & S_IWUSR) {
+			ace.access_mask |= SEC_RIGHTS_FILE_ALL;
+		} else {
+			ace.access_mask |= SEC_RIGHTS_FILE_READ | SEC_FILE_EXECUTE;
+		}
+	}
+	if (mode & S_IWUSR) {
+		ace.access_mask |= SEC_RIGHTS_FILE_WRITE | SEC_STD_DELETE;
+	}
+	if (ace.access_mask) {
+		security_descriptor_dacl_add(sd, &ace);
+	}
+
+
+	/* setup group ACE */
+	ace.trustee = *sd->group_sid;
+	ace.access_mask = 0;
+	if (mode & S_IRGRP) {
+		ace.access_mask |= SEC_RIGHTS_FILE_READ | SEC_FILE_EXECUTE;
+	}
+	if (mode & S_IWGRP) {
+		/* note that delete is not granted - this matches posix behaviour */
+		ace.access_mask |= SEC_RIGHTS_FILE_WRITE;
+	}
+	if (ace.access_mask) {
+		security_descriptor_dacl_add(sd, &ace);
+	}
+
+	/* setup other ACE */
+	ace.trustee = *dom_sid_parse_talloc(req, SID_WORLD);
+	ace.access_mask = 0;
+	if (mode & S_IROTH) {
+		ace.access_mask |= SEC_RIGHTS_FILE_READ | SEC_FILE_EXECUTE;
+	}
+	if (mode & S_IWOTH) {
+		ace.access_mask |= SEC_RIGHTS_FILE_WRITE;
+	}
+	if (ace.access_mask) {
+		security_descriptor_dacl_add(sd, &ace);
+	}
+
+	/* setup system ACE */
+	ace.trustee = *dom_sid_parse_talloc(req, SID_NT_SYSTEM);
+	ace.access_mask = SEC_RIGHTS_FILE_ALL;
+	security_descriptor_dacl_add(sd, &ace);
+	
+	return NT_STATUS_OK;
+}
+				 
+
+/*
+  omit any security_descriptor elements not specified in the given
+  secinfo flags
+*/
+static void normalise_sd_flags(struct security_descriptor *sd, uint32_t secinfo_flags)
+{
+	if (!(secinfo_flags & SECINFO_OWNER)) {
+		sd->owner_sid = NULL;
+	}
+	if (!(secinfo_flags & SECINFO_GROUP)) {
+		sd->group_sid = NULL;
+	}
+	if (!(secinfo_flags & SECINFO_DACL)) {
+		sd->dacl = NULL;
+	}
+	if (!(secinfo_flags & SECINFO_SACL)) {
+		sd->sacl = NULL;
+	}
+}
+
+static bool pvfs_privileged_access(uid_t uid)
+{
+	uid_t euid;
+
+	if (uid_wrapper_enabled()) {
+		setenv("UID_WRAPPER_MYUID", "1", 1);
+	}
+
+	euid = geteuid();
+
+	if (uid_wrapper_enabled()) {
+		unsetenv("UID_WRAPPER_MYUID");
+	}
+
+	return (uid == euid);
+}
+
+/*
+  answer a setfileinfo for an ACL
+*/
+NTSTATUS pvfs_acl_set(struct pvfs_state *pvfs, 
+		      struct ntvfs_request *req,
+		      struct pvfs_filename *name, int fd, 
+		      uint32_t access_mask,
+		      union smb_setfileinfo *info)
+{
+	uint32_t secinfo_flags = info->set_secdesc.in.secinfo_flags;
+	struct security_descriptor *new_sd, *sd, orig_sd;
+	NTSTATUS status = NT_STATUS_NOT_FOUND;
+	uid_t old_uid = -1;
+	gid_t old_gid = -1;
+	uid_t new_uid = -1;
+	gid_t new_gid = -1;
+	struct id_map *ids;
+
+	if (pvfs->acl_ops != NULL) {
+		status = pvfs->acl_ops->acl_load(pvfs, name, fd, req, &sd);
+	}
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		status = pvfs_default_acl(pvfs, req, name, fd, &sd);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	ids = talloc(req, struct id_map);
+	NT_STATUS_HAVE_NO_MEMORY(ids);
+	ZERO_STRUCT(ids->xid);
+	ids->sid = NULL;
+	ids->status = ID_UNKNOWN;
+
+	new_sd = info->set_secdesc.in.sd;
+	orig_sd = *sd;
+
+	old_uid = name->st.st_uid;
+	old_gid = name->st.st_gid;
+
+	/* only set the elements that have been specified */
+	if (secinfo_flags & SECINFO_OWNER) {
+		if (!(access_mask & SEC_STD_WRITE_OWNER)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		if (!dom_sid_equal(sd->owner_sid, new_sd->owner_sid)) {
+			ids->sid = new_sd->owner_sid;
+			status = wbc_sids_to_xids(ids, 1);
+			NT_STATUS_NOT_OK_RETURN(status);
+
+			if (ids->xid.type == ID_TYPE_BOTH ||
+			    ids->xid.type == ID_TYPE_UID) {
+				new_uid = ids->xid.id;
+			}
+		}
+		sd->owner_sid = new_sd->owner_sid;
+	}
+
+	if (secinfo_flags & SECINFO_GROUP) {
+		if (!(access_mask & SEC_STD_WRITE_OWNER)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		if (!dom_sid_equal(sd->group_sid, new_sd->group_sid)) {
+			ids->sid = new_sd->group_sid;
+			status = wbc_sids_to_xids(ids, 1);
+			NT_STATUS_NOT_OK_RETURN(status);
+
+			if (ids->xid.type == ID_TYPE_BOTH ||
+			    ids->xid.type == ID_TYPE_GID) {
+				new_gid = ids->xid.id;
+			}
+
+		}
+		sd->group_sid = new_sd->group_sid;
+	}
+
+	if (secinfo_flags & SECINFO_DACL) {
+		if (!(access_mask & SEC_STD_WRITE_DAC)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		sd->dacl = new_sd->dacl;
+		pvfs_translate_generic_bits(sd->dacl);
+		sd->type |= SEC_DESC_DACL_PRESENT;
+	}
+
+	if (secinfo_flags & SECINFO_SACL) {
+		if (!(access_mask & SEC_FLAG_SYSTEM_SECURITY)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		sd->sacl = new_sd->sacl;
+		pvfs_translate_generic_bits(sd->sacl);
+		sd->type |= SEC_DESC_SACL_PRESENT;
+	}
+
+	if (secinfo_flags & SECINFO_PROTECTED_DACL) {
+		if (new_sd->type & SEC_DESC_DACL_PROTECTED) {
+			sd->type |= SEC_DESC_DACL_PROTECTED;
+		} else {
+			sd->type &= ~SEC_DESC_DACL_PROTECTED;
+		}
+	}
+
+	if (secinfo_flags & SECINFO_PROTECTED_SACL) {
+		if (new_sd->type & SEC_DESC_SACL_PROTECTED) {
+			sd->type |= SEC_DESC_SACL_PROTECTED;
+		} else {
+			sd->type &= ~SEC_DESC_SACL_PROTECTED;
+		}
+	}
+
+	if (new_uid == old_uid) {
+		new_uid = -1;
+	}
+
+	if (new_gid == old_gid) {
+		new_gid = -1;
+	}
+
+	/* if there's something to change try it */
+	if (new_uid != -1 || new_gid != -1) {
+		int ret;
+		if (fd == -1) {
+			ret = chown(name->full_name, new_uid, new_gid);
+		} else {
+			ret = fchown(fd, new_uid, new_gid);
+		}
+		if (errno == EPERM) {
+			if (pvfs_privileged_access(name->st.st_uid)) {
+				ret = 0;
+			} else {
+				/* try again as root if we have SEC_PRIV_RESTORE or
+				   SEC_PRIV_TAKE_OWNERSHIP */
+				if (security_token_has_privilege(req->session_info->security_token,
+								 SEC_PRIV_RESTORE) ||
+				    security_token_has_privilege(req->session_info->security_token,
+								 SEC_PRIV_TAKE_OWNERSHIP)) {
+					void *privs;
+					privs = root_privileges();
+					if (fd == -1) {
+						ret = chown(name->full_name, new_uid, new_gid);
+					} else {
+						ret = fchown(fd, new_uid, new_gid);
+					}
+					talloc_free(privs);
+				}
+			}
+		}
+		if (ret == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+	}
+
+	/* we avoid saving if the sd is the same. This means when clients
+	   copy files and end up copying the default sd that we don't
+	   needlessly use xattrs */
+	if (!security_descriptor_equal(sd, &orig_sd) && pvfs->acl_ops) {
+		status = pvfs->acl_ops->acl_save(pvfs, name, fd, sd);
+	}
+
+	return status;
+}
+
+
+/*
+  answer a fileinfo query for the ACL
+*/
+NTSTATUS pvfs_acl_query(struct pvfs_state *pvfs, 
+			struct ntvfs_request *req,
+			struct pvfs_filename *name, int fd, 
+			union smb_fileinfo *info)
+{
+	NTSTATUS status = NT_STATUS_NOT_FOUND;
+	struct security_descriptor *sd;
+
+	if (pvfs->acl_ops) {
+		status = pvfs->acl_ops->acl_load(pvfs, name, fd, req, &sd);
+	}
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		status = pvfs_default_acl(pvfs, req, name, fd, &sd);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	normalise_sd_flags(sd, info->query_secdesc.in.secinfo_flags);
+
+	info->query_secdesc.out.sd = sd;
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  check the read only bit against any of the write access bits
+*/
+static bool pvfs_read_only(struct pvfs_state *pvfs, uint32_t access_mask)
+{
+	if ((pvfs->flags & PVFS_FLAG_READONLY) &&
+	    (access_mask & (SEC_FILE_WRITE_DATA |
+			    SEC_FILE_APPEND_DATA | 
+			    SEC_FILE_WRITE_EA | 
+			    SEC_FILE_WRITE_ATTRIBUTE | 
+			    SEC_STD_DELETE | 
+			    SEC_STD_WRITE_DAC | 
+			    SEC_STD_WRITE_OWNER | 
+			    SEC_DIR_DELETE_CHILD))) {
+		return true;
+	}
+	return false;
+}
+
+/*
+  see if we are a member of the appropriate unix group
+ */
+static bool pvfs_group_member(struct pvfs_state *pvfs, gid_t gid)
+{
+	int i, ngroups;
+	gid_t *groups;
+	if (getegid() == gid) {
+		return true;
+	}
+	ngroups = getgroups(0, NULL);
+	if (ngroups <= 0) {
+		return false;
+	}
+	groups = talloc_array(pvfs, gid_t, ngroups);
+	if (groups == NULL) {
+		return false;
+	}
+	if (getgroups(ngroups, groups) != ngroups) {
+		talloc_free(groups);
+		return false;
+	}
+	for (i=0; i<ngroups; i++) {
+		if (groups[i] == gid) break;
+	}
+	talloc_free(groups);
+	return i < ngroups;
+}
+
+/*
+  default access check function based on unix permissions
+  doing this saves on building a full security descriptor
+  for the common case of access check on files with no 
+  specific NT ACL
+
+  If name is NULL then treat as a new file creation
+*/
+static NTSTATUS pvfs_access_check_unix(struct pvfs_state *pvfs,
+				       struct ntvfs_request *req,
+				       struct pvfs_filename *name,
+				       uint32_t *access_mask)
+{
+	uint32_t max_bits = 0;
+	struct security_token *token = req->session_info->security_token;
+
+	if (pvfs_read_only(pvfs, *access_mask)) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (name == NULL) {
+		max_bits |= SEC_RIGHTS_FILE_ALL | SEC_STD_ALL;
+	} else if (pvfs_privileged_access(name->st.st_uid)) {
+		/* use the IxUSR bits */
+		if ((name->st.st_mode & S_IWUSR)) {
+			max_bits |= SEC_RIGHTS_FILE_ALL | SEC_STD_ALL;
+		} else if ((name->st.st_mode & (S_IRUSR | S_IXUSR))) {
+			max_bits |= SEC_RIGHTS_FILE_READ | SEC_RIGHTS_FILE_EXECUTE | SEC_STD_ALL;
+		}
+	} else if (pvfs_group_member(pvfs, name->st.st_gid)) {
+		/* use the IxGRP bits */
+		if ((name->st.st_mode & S_IWGRP)) {
+			max_bits |= SEC_RIGHTS_FILE_ALL | SEC_STD_ALL;
+		} else if ((name->st.st_mode & (S_IRGRP | S_IXGRP))) {
+			max_bits |= SEC_RIGHTS_FILE_READ | SEC_RIGHTS_FILE_EXECUTE | SEC_STD_ALL;
+		}
+	} else {
+		/* use the IxOTH bits */
+		if ((name->st.st_mode & S_IWOTH)) {
+			max_bits |= SEC_RIGHTS_FILE_ALL | SEC_STD_ALL;
+		} else if ((name->st.st_mode & (S_IROTH | S_IXOTH))) {
+			max_bits |= SEC_RIGHTS_FILE_READ | SEC_RIGHTS_FILE_EXECUTE | SEC_STD_ALL;
+		}
+	}
+
+	if (*access_mask & SEC_FLAG_MAXIMUM_ALLOWED) {
+		*access_mask |= max_bits;
+		*access_mask &= ~SEC_FLAG_MAXIMUM_ALLOWED;
+	}
+
+	if ((*access_mask & SEC_FLAG_SYSTEM_SECURITY) &&
+	    security_token_has_privilege(token, SEC_PRIV_SECURITY)) {
+		max_bits |= SEC_FLAG_SYSTEM_SECURITY;
+	}
+	
+	if (((*access_mask & ~max_bits) & SEC_RIGHTS_PRIV_RESTORE) &&
+	    security_token_has_privilege(token, SEC_PRIV_RESTORE)) {
+		max_bits |= ~(SEC_RIGHTS_PRIV_RESTORE);
+	}
+	if (((*access_mask & ~max_bits) & SEC_RIGHTS_PRIV_BACKUP) &&
+	    security_token_has_privilege(token, SEC_PRIV_BACKUP)) {
+		max_bits |= ~(SEC_RIGHTS_PRIV_BACKUP);
+	}
+
+	if (*access_mask & ~max_bits) {
+		DEBUG(5,(__location__ " denied access to '%s' - wanted 0x%08x but got 0x%08x (missing 0x%08x)\n",
+			 name?name->full_name:"(new file)", *access_mask, max_bits, *access_mask & ~max_bits));
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (pvfs->ntvfs->ctx->protocol < PROTOCOL_SMB2_02) {
+		/* on SMB, this bit is always granted, even if not
+		   asked for */
+		*access_mask |= SEC_FILE_READ_ATTRIBUTE;
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  check the security descriptor on a file, if any
+  
+  *access_mask is modified with the access actually granted
+*/
+NTSTATUS pvfs_access_check(struct pvfs_state *pvfs, 
+			   struct ntvfs_request *req,
+			   struct pvfs_filename *name,
+			   uint32_t *access_mask)
+{
+	struct security_token *token = req->session_info->security_token;
+	struct xattr_NTACL *acl;
+	NTSTATUS status;
+	struct security_descriptor *sd;
+	bool allow_delete = false;
+
+	/* on SMB2 a blank access mask is always denied */
+	if (pvfs->ntvfs->ctx->protocol >= PROTOCOL_SMB2_02 &&
+	    *access_mask == 0) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (pvfs_read_only(pvfs, *access_mask)) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (*access_mask & SEC_FLAG_MAXIMUM_ALLOWED ||
+	    *access_mask & SEC_STD_DELETE) {
+		status = pvfs_access_check_parent(pvfs, req,
+						  name, SEC_DIR_DELETE_CHILD);
+		if (NT_STATUS_IS_OK(status)) {
+			allow_delete = true;
+			*access_mask &= ~SEC_STD_DELETE;
+		}
+	}
+
+	acl = talloc(req, struct xattr_NTACL);
+	if (acl == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* expand the generic access bits to file specific bits */
+	*access_mask = pvfs_translate_mask(*access_mask);
+	if (pvfs->ntvfs->ctx->protocol < PROTOCOL_SMB2_02) {
+		*access_mask &= ~SEC_FILE_READ_ATTRIBUTE;
+	}
+
+	status = pvfs_acl_load(pvfs, name, -1, acl);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		talloc_free(acl);
+		status = pvfs_access_check_unix(pvfs, req, name, access_mask);
+		goto done;
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	switch (acl->version) {
+	case 1:
+		sd = acl->info.sd;
+		break;
+	default:
+		return NT_STATUS_INVALID_ACL;
+	}
+
+	/* check the acl against the required access mask */
+	status = se_access_check(sd, token, *access_mask, access_mask);
+	talloc_free(acl);
+
+	/* if we used a NT acl, then allow access override if the
+	   share allows for posix permission override
+	*/
+	if (NT_STATUS_IS_OK(status)) {
+		name->allow_override = (pvfs->flags & PVFS_FLAG_PERM_OVERRIDE) != 0;
+	}
+
+done:
+	if (pvfs->ntvfs->ctx->protocol < PROTOCOL_SMB2_02) {
+		/* on SMB, this bit is always granted, even if not
+		   asked for */
+		*access_mask |= SEC_FILE_READ_ATTRIBUTE;
+	}
+
+	if (allow_delete) {
+		*access_mask |= SEC_STD_DELETE;
+	}
+
+	return status;
+}
+
+
+/*
+  a simplified interface to access check, designed for calls that
+  do not take or return an access check mask
+*/
+NTSTATUS pvfs_access_check_simple(struct pvfs_state *pvfs, 
+				  struct ntvfs_request *req,
+				  struct pvfs_filename *name,
+				  uint32_t access_needed)
+{
+	if (access_needed == 0) {
+		return NT_STATUS_OK;
+	}
+	return pvfs_access_check(pvfs, req, name, &access_needed);
+}
+
+/*
+  access check for creating a new file/directory
+*/
+NTSTATUS pvfs_access_check_create(struct pvfs_state *pvfs, 
+				  struct ntvfs_request *req,
+				  struct pvfs_filename *name,
+				  uint32_t *access_mask,
+				  bool container,
+				  struct security_descriptor **sd)
+{
+	struct pvfs_filename *parent;
+	NTSTATUS status;
+	uint32_t parent_mask;
+	bool allow_delete = false;
+
+	if (pvfs_read_only(pvfs, *access_mask)) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	status = pvfs_resolve_parent(pvfs, req, name, &parent);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (container) {
+		parent_mask = SEC_DIR_ADD_SUBDIR;
+	} else {
+		parent_mask = SEC_DIR_ADD_FILE;
+	}
+	if (*access_mask & SEC_FLAG_MAXIMUM_ALLOWED ||
+	    *access_mask & SEC_STD_DELETE) {
+		parent_mask |= SEC_DIR_DELETE_CHILD;
+	}
+
+	status = pvfs_access_check(pvfs, req, parent, &parent_mask);
+	if (NT_STATUS_IS_OK(status)) {
+		if (parent_mask & SEC_DIR_DELETE_CHILD) {
+			allow_delete = true;
+		}
+	} else if (NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
+		/*
+		 * on ACCESS_DENIED we get the rejected bits
+		 * remove the non critical SEC_DIR_DELETE_CHILD
+		 * and check if something else was rejected.
+		 */
+		parent_mask &= ~SEC_DIR_DELETE_CHILD;
+		if (parent_mask != 0) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		status = NT_STATUS_OK;
+	} else {
+		return status;
+	}
+
+	if (*sd == NULL) {
+		status = pvfs_acl_inherited_sd(pvfs, req, req, parent, container, sd);
+	}
+
+	talloc_free(parent);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* expand the generic access bits to file specific bits */
+	*access_mask = pvfs_translate_mask(*access_mask);
+
+	if (*access_mask & SEC_FLAG_MAXIMUM_ALLOWED) {
+		*access_mask |= SEC_RIGHTS_FILE_ALL;
+		*access_mask &= ~SEC_FLAG_MAXIMUM_ALLOWED;
+	}
+
+	if (pvfs->ntvfs->ctx->protocol < PROTOCOL_SMB2_02) {
+		/* on SMB, this bit is always granted, even if not
+		   asked for */
+		*access_mask |= SEC_FILE_READ_ATTRIBUTE;
+	}
+
+	if (allow_delete) {
+		*access_mask |= SEC_STD_DELETE;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  access check for creating a new file/directory - no access mask supplied
+*/
+NTSTATUS pvfs_access_check_parent(struct pvfs_state *pvfs, 
+				  struct ntvfs_request *req,
+				  struct pvfs_filename *name,
+				  uint32_t access_mask)
+{
+	struct pvfs_filename *parent;
+	NTSTATUS status;
+
+	status = pvfs_resolve_parent(pvfs, req, name, &parent);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_access_check_simple(pvfs, req, parent, access_mask);
+	if (NT_STATUS_IS_OK(status) && parent->allow_override) {
+		name->allow_override = true;
+	}
+	return status;
+}
+
+
+/*
+  determine if an ACE is inheritable
+*/
+static bool pvfs_inheritable_ace(struct pvfs_state *pvfs,
+				 const struct security_ace *ace,
+				 bool container)
+{
+	if (!container) {
+		return (ace->flags & SEC_ACE_FLAG_OBJECT_INHERIT) != 0;
+	}
+
+	if (ace->flags & SEC_ACE_FLAG_CONTAINER_INHERIT) {
+		return true;
+	}
+
+	if ((ace->flags & SEC_ACE_FLAG_OBJECT_INHERIT) &&
+	    !(ace->flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT)) {
+		return true;
+	}
+
+	return false;
+}
+
+/*
+  this is the core of ACL inheritance. It copies any inheritable
+  aces from the parent SD to the child SD. Note that the algorithm 
+  depends on whether the child is a container or not
+*/
+static NTSTATUS pvfs_acl_inherit_aces(struct pvfs_state *pvfs, 
+				      struct security_descriptor *parent_sd,
+				      struct security_descriptor *sd,
+				      bool container)
+{
+	int i;
+	
+	for (i=0;i<parent_sd->dacl->num_aces;i++) {
+		struct security_ace ace = parent_sd->dacl->aces[i];
+		NTSTATUS status;
+		const struct dom_sid *creator = NULL, *new_id = NULL;
+		uint32_t orig_flags;
+
+		if (!pvfs_inheritable_ace(pvfs, &ace, container)) {
+			continue;
+		}
+
+		orig_flags = ace.flags;
+
+		/* see the RAW-ACLS inheritance test for details on these rules */
+		if (!container) {
+			ace.flags = 0;
+		} else {
+			ace.flags &= ~SEC_ACE_FLAG_INHERIT_ONLY;
+
+			if (!(ace.flags & SEC_ACE_FLAG_CONTAINER_INHERIT)) {
+				ace.flags |= SEC_ACE_FLAG_INHERIT_ONLY;
+			}
+			if (ace.flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT) {
+				ace.flags = 0;
+			}
+		}
+
+		/* the CREATOR sids are special when inherited */
+		if (dom_sid_equal(&ace.trustee, pvfs->sid_cache.creator_owner)) {
+			creator = pvfs->sid_cache.creator_owner;
+			new_id = sd->owner_sid;
+		} else if (dom_sid_equal(&ace.trustee, pvfs->sid_cache.creator_group)) {
+			creator = pvfs->sid_cache.creator_group;
+			new_id = sd->group_sid;
+		} else {
+			new_id = &ace.trustee;
+		}
+
+		if (creator && container && 
+		    (ace.flags & SEC_ACE_FLAG_CONTAINER_INHERIT)) {
+			uint32_t flags = ace.flags;
+
+			ace.trustee = *new_id;
+			ace.flags = 0;
+			status = security_descriptor_dacl_add(sd, &ace);
+			if (!NT_STATUS_IS_OK(status)) {
+				return status;
+			}
+
+			ace.trustee = *creator;
+			ace.flags = flags | SEC_ACE_FLAG_INHERIT_ONLY;
+			status = security_descriptor_dacl_add(sd, &ace);
+		} else if (container && 
+			   !(orig_flags & SEC_ACE_FLAG_NO_PROPAGATE_INHERIT)) {
+			status = security_descriptor_dacl_add(sd, &ace);
+		} else {
+			ace.trustee = *new_id;
+			status = security_descriptor_dacl_add(sd, &ace);
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+
+/*
+  calculate the ACL on a new file/directory based on the inherited ACL
+  from the parent. If there is no inherited ACL then return a NULL
+  ACL, which means the default ACL should be used
+*/
+NTSTATUS pvfs_acl_inherited_sd(struct pvfs_state *pvfs, 
+			       TALLOC_CTX *mem_ctx,
+			       struct ntvfs_request *req,
+			       struct pvfs_filename *parent,
+			       bool container,
+			       struct security_descriptor **ret_sd)
+{
+	struct xattr_NTACL *acl;
+	NTSTATUS status;
+	struct security_descriptor *parent_sd, *sd;
+	struct id_map *ids;
+	TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+
+	*ret_sd = NULL;
+
+	acl = talloc(req, struct xattr_NTACL);
+	if (acl == NULL) {
+		TALLOC_FREE(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_acl_load(pvfs, parent, -1, acl);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_OK;
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(tmp_ctx);
+		return status;
+	}
+
+	switch (acl->version) {
+	case 1:
+		parent_sd = acl->info.sd;
+		break;
+	default:
+		talloc_free(tmp_ctx);
+		return NT_STATUS_INVALID_ACL;
+	}
+
+	if (parent_sd == NULL ||
+	    parent_sd->dacl == NULL ||
+	    parent_sd->dacl->num_aces == 0) {
+		/* go with the default ACL */
+		talloc_free(tmp_ctx);
+		return NT_STATUS_OK;
+	}
+
+	/* create the new sd */
+	sd = security_descriptor_initialise(req);
+	if (sd == NULL) {
+		TALLOC_FREE(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ids = talloc_array(sd, struct id_map, 2);
+	if (ids == NULL) {
+		TALLOC_FREE(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ids[0].xid.id = geteuid();
+	ids[0].xid.type = ID_TYPE_UID;
+	ids[0].sid = NULL;
+	ids[0].status = ID_UNKNOWN;
+
+	ids[1].xid.id = getegid();
+	ids[1].xid.type = ID_TYPE_GID;
+	ids[1].sid = NULL;
+	ids[1].status = ID_UNKNOWN;
+
+	status = wbc_xids_to_sids(ids, 2);
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(tmp_ctx);
+		return status;
+	}
+
+	sd->owner_sid = talloc_steal(sd, ids[0].sid);
+	sd->group_sid = talloc_steal(sd, ids[1].sid);
+
+	sd->type |= SEC_DESC_DACL_PRESENT;
+
+	/* fill in the aces from the parent */
+	status = pvfs_acl_inherit_aces(pvfs, parent_sd, sd, container);
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(tmp_ctx);
+		return status;
+	}
+
+	/* if there is nothing to inherit then we fallback to the
+	   default acl */
+	if (sd->dacl == NULL || sd->dacl->num_aces == 0) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_OK;
+	}
+
+	*ret_sd = talloc_steal(mem_ctx, sd);
+
+	talloc_free(tmp_ctx);
+	return NT_STATUS_OK;
+}
+
+
+/*
+  setup an ACL on a new file/directory based on the inherited ACL from
+  the parent. If there is no inherited ACL then we don't set anything,
+  as the default ACL applies anyway
+*/
+NTSTATUS pvfs_acl_inherit(struct pvfs_state *pvfs, 
+			  struct ntvfs_request *req,
+			  struct pvfs_filename *name,
+			  int fd)
+{
+	struct xattr_NTACL acl;
+	NTSTATUS status;
+	struct security_descriptor *sd;
+	struct pvfs_filename *parent;
+	bool container;
+
+	/* form the parents path */
+	status = pvfs_resolve_parent(pvfs, req, name, &parent);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	container = (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) ? true:false;
+
+	status = pvfs_acl_inherited_sd(pvfs, req, req, parent, container, &sd);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(parent);
+		return status;
+	}
+
+	if (sd == NULL) {
+		return NT_STATUS_OK;
+	}
+
+	acl.version = 1;
+	acl.info.sd = sd;
+
+	status = pvfs_acl_save(pvfs, name, fd, &acl);
+	talloc_free(sd);
+	talloc_free(parent);
+
+	return status;
+}
+
+/*
+  return the maximum allowed access mask
+*/
+NTSTATUS pvfs_access_maximal_allowed(struct pvfs_state *pvfs, 
+				     struct ntvfs_request *req,
+				     struct pvfs_filename *name,
+				     uint32_t *maximal_access)
+{
+	*maximal_access = SEC_FLAG_MAXIMUM_ALLOWED;
+	return pvfs_access_check(pvfs, req, name, maximal_access);
+}
diff --git a/source4/ntvfs/posix/pvfs_acl_nfs4.c b/source4/ntvfs/posix/pvfs_acl_nfs4.c
new file mode 100644
index 0000000..fc6c230
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_acl_nfs4.c
@@ -0,0 +1,199 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - NT ACLs mapped to NFS4 ACLs, as per
+   http://www.suse.de/~agruen/nfs4acl/
+
+   Copyright (C) Andrew Tridgell 2006
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "../lib/util/unix_privs.h"
+#include "librpc/gen_ndr/ndr_nfs4acl.h"
+#include "libcli/security/security.h"
+
+NTSTATUS pvfs_acl_nfs4_init(TALLOC_CTX *);
+
+#define ACE4_IDENTIFIER_GROUP 0x40
+
+/*
+  load the current ACL from system.nfs4acl
+*/
+static NTSTATUS pvfs_acl_load_nfs4(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+				   TALLOC_CTX *mem_ctx,
+				   struct security_descriptor **psd)
+{
+	NTSTATUS status;
+	struct nfs4acl *acl;
+	struct security_descriptor *sd;
+	int i, num_ids;
+	struct id_map *ids;
+
+	acl = talloc_zero(mem_ctx, struct nfs4acl);
+	NT_STATUS_HAVE_NO_MEMORY(acl);
+
+	status = pvfs_xattr_ndr_load(pvfs, mem_ctx, name->full_name, fd, 
+				     NFS4ACL_NDR_XATTR_NAME,
+				     acl, (void *) ndr_pull_nfs4acl);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(acl);
+		return status;
+	}
+
+	*psd = security_descriptor_initialise(mem_ctx);
+	NT_STATUS_HAVE_NO_MEMORY(*psd);
+
+	sd = *psd;
+
+	sd->type |= acl->a_flags;
+
+	/* the number of ids to map is the acl count plus uid and gid */
+	num_ids = acl->a_count +2;
+	ids = talloc_array(sd, struct id_map, num_ids);
+	NT_STATUS_HAVE_NO_MEMORY(ids);
+
+	ids[0].xid.id = name->st.st_uid;
+	ids[0].xid.type = ID_TYPE_UID;
+	ids[0].sid = NULL;
+	ids[0].status = ID_UNKNOWN;
+
+	ids[1].xid.id = name->st.st_gid;
+	ids[1].xid.type = ID_TYPE_GID;
+	ids[1].sid = NULL;
+	ids[1].status = ID_UNKNOWN;
+
+	for (i=0;i<acl->a_count;i++) {
+		struct nfs4ace *a = &acl->ace[i];
+		ids[i+2].xid.id = a->e_id;
+		if (a->e_flags & ACE4_IDENTIFIER_GROUP) {
+			ids[i+2].xid.type = ID_TYPE_GID;
+		} else {
+			ids[i+2].xid.type = ID_TYPE_UID;
+		}
+		ids[i+2].sid = NULL;
+		ids[i+2].status = ID_UNKNOWN;
+	}
+
+	/* Allocate memory for the sids from the security descriptor to be on
+	 * the safe side. */
+	status = wbc_xids_to_sids(ids, num_ids);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	sd->owner_sid = talloc_steal(sd, ids[0].sid);
+	sd->group_sid = talloc_steal(sd, ids[1].sid);
+
+	for (i=0;i<acl->a_count;i++) {
+		struct nfs4ace *a = &acl->ace[i];
+		struct security_ace ace;
+		ace.type = a->e_type;
+		ace.flags = a->e_flags;
+		ace.access_mask = a->e_mask;
+		ace.trustee = *ids[i+2].sid;
+		security_descriptor_dacl_add(sd, &ace);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  save the acl for a file into system.nfs4acl
+*/
+static NTSTATUS pvfs_acl_save_nfs4(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+				   struct security_descriptor *sd)
+{
+	NTSTATUS status;
+	void *privs;
+	struct nfs4acl acl;
+	int i;
+	TALLOC_CTX *tmp_ctx;
+	struct id_map *ids;
+
+	tmp_ctx = talloc_new(pvfs);
+	NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
+
+	acl.a_version = 0;
+	acl.a_flags   = sd->type;
+	acl.a_count   = sd->dacl?sd->dacl->num_aces:0;
+	acl.a_owner_mask = 0;
+	acl.a_group_mask = 0;
+	acl.a_other_mask = 0;
+
+	acl.ace = talloc_array(tmp_ctx, struct nfs4ace, acl.a_count);
+	if (!acl.ace) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	ids = talloc_array(tmp_ctx, struct id_map, acl.a_count);
+	if (ids == NULL) {
+		talloc_free(tmp_ctx);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	for (i=0;i<acl.a_count;i++) {
+		struct security_ace *ace = &sd->dacl->aces[i];
+		ZERO_STRUCT(ids[i].xid);
+		ids[i].sid = dom_sid_dup(ids, &ace->trustee);
+		if (ids[i].sid == NULL) {
+			talloc_free(tmp_ctx);
+			return NT_STATUS_NO_MEMORY;
+		}
+		ids[i].status = ID_UNKNOWN;
+	}
+
+	status = wbc_sids_to_xids(ids, acl.a_count);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(tmp_ctx);
+		return status;
+	}
+
+	for (i=0;i<acl.a_count;i++) {
+		struct nfs4ace *a = &acl.ace[i];
+		struct security_ace *ace = &sd->dacl->aces[i];
+		a->e_type  = ace->type;
+		a->e_flags = ace->flags;
+		a->e_mask  = ace->access_mask;
+		if (ids[i].xid.type != ID_TYPE_UID) {
+			a->e_flags |= ACE4_IDENTIFIER_GROUP;
+		}
+		a->e_id = ids[i].xid.id;
+		a->e_who   = "";
+	}
+
+	privs = root_privileges();
+	status = pvfs_xattr_ndr_save(pvfs, name->full_name, fd, 
+				     NFS4ACL_NDR_XATTR_NAME,
+				     &acl, (void *) ndr_push_nfs4acl);
+	talloc_free(privs);
+
+	talloc_free(tmp_ctx);
+	return status;
+}
+
+
+/*
+  initialise pvfs acl NFS4 backend
+*/
+NTSTATUS pvfs_acl_nfs4_init(TALLOC_CTX *ctx)
+{
+	struct pvfs_acl_ops ops = {
+		.name = "nfs4acl",
+		.acl_load = pvfs_acl_load_nfs4,
+		.acl_save = pvfs_acl_save_nfs4
+	};
+	return pvfs_acl_register(ctx, &ops);
+}
diff --git a/source4/ntvfs/posix/pvfs_acl_xattr.c b/source4/ntvfs/posix/pvfs_acl_xattr.c
new file mode 100644
index 0000000..1f569ca
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_acl_xattr.c
@@ -0,0 +1,104 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - NT ACLs in xattrs
+
+   Copyright (C) Andrew Tridgell 2006
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "../lib/util/unix_privs.h"
+#include "librpc/gen_ndr/ndr_xattr.h"
+
+NTSTATUS pvfs_acl_xattr_init(TALLOC_CTX *);
+
+/*
+  load the current ACL from extended attributes
+*/
+static NTSTATUS pvfs_acl_load_xattr(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+				    TALLOC_CTX *mem_ctx,
+				    struct security_descriptor **sd)
+{
+	NTSTATUS status;
+	struct xattr_NTACL *acl;
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_NOT_FOUND;
+	}
+
+	acl = talloc_zero(mem_ctx, struct xattr_NTACL);
+	NT_STATUS_HAVE_NO_MEMORY(acl);
+
+	status = pvfs_xattr_ndr_load(pvfs, mem_ctx, name->full_name, fd, 
+				     XATTR_NTACL_NAME,
+				     acl, (void *) ndr_pull_xattr_NTACL);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(acl);
+		return status;
+	}
+
+	if (acl->version != 1) {
+		talloc_free(acl);
+		return NT_STATUS_INVALID_ACL;
+	}
+	
+	*sd = talloc_steal(mem_ctx, acl->info.sd);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  save the acl for a file into filesystem xattr
+*/
+static NTSTATUS pvfs_acl_save_xattr(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+				    struct security_descriptor *sd)
+{
+	NTSTATUS status;
+	void *privs;
+	struct xattr_NTACL acl;
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+
+	acl.version = 1;
+	acl.info.sd = sd;
+
+	/* this xattr is in the "system" namespace, so we need
+	   admin privileges to set it */
+	privs = root_privileges();
+	status = pvfs_xattr_ndr_save(pvfs, name->full_name, fd, 
+				     XATTR_NTACL_NAME, 
+				     &acl, (void *) ndr_push_xattr_NTACL);
+	talloc_free(privs);
+	return status;
+}
+
+
+/*
+  initialise pvfs acl xattr backend
+*/
+NTSTATUS pvfs_acl_xattr_init(TALLOC_CTX *ctx)
+{
+	struct pvfs_acl_ops ops = {
+		.name = "xattr",
+		.acl_load = pvfs_acl_load_xattr,
+		.acl_save = pvfs_acl_save_xattr
+	};
+	return pvfs_acl_register(ctx, &ops);
+}
diff --git a/source4/ntvfs/posix/pvfs_dirlist.c b/source4/ntvfs/posix/pvfs_dirlist.c
new file mode 100644
index 0000000..a503404
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_dirlist.c
@@ -0,0 +1,407 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+  directory listing functions for posix backend
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/dir.h"
+
+#define NAME_CACHE_SIZE 100
+
+struct name_cache_entry {
+	char *name;
+	off_t offset;
+};
+
+struct pvfs_dir {
+	struct pvfs_state *pvfs;
+	bool no_wildcard;
+	char *single_name;
+	const char *pattern;
+	off_t offset;
+	DIR *dir;
+	const char *unix_path;
+	bool end_of_search;
+	struct name_cache_entry *name_cache;
+	uint32_t name_cache_index;
+};
+
+/* these three numbers are chosen to minimise the chances of a bad
+   interaction with the OS value for 'end of directory'. On IRIX
+   telldir() returns 0xFFFFFFFF at the end of a directory, and that
+   caused an infinite loop with the original values of 0,1,2
+
+   On XFS on linux telldir returns 0x7FFFFFFF at the end of a
+   directory. Thus the change from 0x80000002, as otherwise
+   0x7FFFFFFF+0x80000002==1==DIR_OFFSET_DOTDOT
+*/
+#define DIR_OFFSET_DOT    0
+#define DIR_OFFSET_DOTDOT 1
+#define DIR_OFFSET_BASE   0x80000022
+
+/*
+  a special directory listing case where the pattern has no wildcard. We can just do a single stat()
+  thus avoiding the more expensive directory scan
+*/
+static NTSTATUS pvfs_list_no_wildcard(struct pvfs_state *pvfs, struct pvfs_filename *name, 
+				      const char *pattern, struct pvfs_dir *dir)
+{
+	if (!name->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	dir->pvfs = pvfs;
+	dir->no_wildcard = true;
+	dir->end_of_search = false;
+	dir->unix_path = talloc_strdup(dir, name->full_name);
+	if (!dir->unix_path) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	dir->single_name = talloc_strdup(dir, pattern);
+	if (!dir->single_name) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	dir->dir = NULL;
+	dir->offset = 0;
+	dir->pattern = NULL;
+
+	return NT_STATUS_OK;
+}
+
+/*
+  destroy an open search
+*/
+static int pvfs_dirlist_destructor(struct pvfs_dir *dir)
+{
+	if (dir->dir) closedir(dir->dir);
+	return 0;
+}
+
+/*
+  start to read a directory 
+
+  if the pattern matches no files then we return NT_STATUS_OK, with dir->count = 0
+*/
+NTSTATUS pvfs_list_start(struct pvfs_state *pvfs, struct pvfs_filename *name, 
+			 TALLOC_CTX *mem_ctx, struct pvfs_dir **dirp)
+{
+	char *pattern;
+	struct pvfs_dir *dir;
+
+	(*dirp) = talloc_zero(mem_ctx, struct pvfs_dir);
+	if (*dirp == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	
+	dir = *dirp;
+
+	/* split the unix path into a directory + pattern */
+	pattern = strrchr(name->full_name, '/');
+	if (!pattern) {
+		/* this should not happen, as pvfs_unix_path is supposed to 
+		   return an absolute path */
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	*pattern++ = 0;
+
+	if (!name->has_wildcard) {
+		return pvfs_list_no_wildcard(pvfs, name, pattern, dir);
+	}
+
+	dir->unix_path = talloc_strdup(dir, name->full_name);
+	if (!dir->unix_path) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	dir->pattern = talloc_strdup(dir, pattern);
+	if (dir->pattern == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	
+	dir->dir = opendir(name->full_name);
+	if (!dir->dir) { 
+		return pvfs_map_errno(pvfs, errno); 
+	}
+
+	dir->pvfs = pvfs;
+	dir->no_wildcard = false;
+	dir->end_of_search = false;
+	dir->offset = DIR_OFFSET_DOT;
+	dir->name_cache = talloc_zero_array(dir, 
+					    struct name_cache_entry, 
+					    NAME_CACHE_SIZE);
+	if (dir->name_cache == NULL) {
+		talloc_free(dir);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	talloc_set_destructor(dir, pvfs_dirlist_destructor);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  add an entry to the local cache
+*/
+static void dcache_add(struct pvfs_dir *dir, const char *name)
+{
+	struct name_cache_entry *e;
+
+	dir->name_cache_index = (dir->name_cache_index+1) % NAME_CACHE_SIZE;
+	e = &dir->name_cache[dir->name_cache_index];
+
+	if (e->name) talloc_free(e->name);
+
+	e->name = talloc_strdup(dir->name_cache, name);
+	e->offset = dir->offset;
+}
+
+/* 
+   return the next entry
+*/
+const char *pvfs_list_next(struct pvfs_dir *dir, off_t *ofs)
+{
+	struct dirent *de;
+	enum protocol_types protocol = dir->pvfs->ntvfs->ctx->protocol;
+
+	/* non-wildcard searches are easy */
+	if (dir->no_wildcard) {
+		dir->end_of_search = true;
+		if (*ofs != 0) return NULL;
+		(*ofs)++;
+		return dir->single_name;
+	}
+
+	/* . and .. are handled separately as some unix systems will
+	   not return them first in a directory, but windows client
+	   may assume that these entries always appear first */
+	if (*ofs == DIR_OFFSET_DOT) {
+		(*ofs) = DIR_OFFSET_DOTDOT;
+		dir->offset = *ofs;
+		if (ms_fnmatch_protocol(dir->pattern, ".", protocol,
+					false) == 0) {
+			dcache_add(dir, ".");
+			return ".";
+		}
+	}
+
+	if (*ofs == DIR_OFFSET_DOTDOT) {
+		(*ofs) = DIR_OFFSET_BASE;
+		dir->offset = *ofs;
+		if (ms_fnmatch_protocol(dir->pattern, "..", protocol,
+					false) == 0) {
+			dcache_add(dir, "..");
+			return "..";
+		}
+	}
+
+	if (*ofs == DIR_OFFSET_BASE) {
+		rewinddir(dir->dir);
+	} else if (*ofs != dir->offset) {
+		seekdir(dir->dir, (*ofs) - DIR_OFFSET_BASE);
+	}
+	dir->offset = *ofs;
+	
+	while ((de = readdir(dir->dir))) {
+		const char *dname = de->d_name;
+
+		if (ISDOT(dname) || ISDOTDOT(dname)) {
+			continue;
+		}
+
+		if (ms_fnmatch_protocol(dir->pattern, dname, protocol,
+					false) != 0) {
+			char *short_name = pvfs_short_name_component(dir->pvfs, dname);
+			if (short_name == NULL ||
+			    ms_fnmatch_protocol(dir->pattern, short_name,
+						protocol, false) != 0) {
+				talloc_free(short_name);
+				continue;
+			}
+			talloc_free(short_name);
+		}
+
+		dir->offset = telldir(dir->dir) + DIR_OFFSET_BASE;
+		(*ofs) = dir->offset;
+
+		dcache_add(dir, dname);
+
+		return dname;
+	}
+
+	dir->end_of_search = true;
+	return NULL;
+}
+
+/*
+  return unix directory of an open search
+*/
+const char *pvfs_list_unix_path(struct pvfs_dir *dir)
+{
+	return dir->unix_path;
+}
+
+/*
+  return true if end of search has been reached
+*/
+bool pvfs_list_eos(struct pvfs_dir *dir, off_t ofs)
+{
+	return dir->end_of_search;
+}
+
+/*
+  seek to the given name
+*/
+NTSTATUS pvfs_list_seek(struct pvfs_dir *dir, const char *name, off_t *ofs)
+{
+	struct dirent *de;
+	int i;
+
+	dir->end_of_search = false;
+
+	if (ISDOT(name)) {
+		dir->offset = DIR_OFFSET_DOTDOT;
+		*ofs = dir->offset;
+		return NT_STATUS_OK;
+	}
+
+	if (ISDOTDOT(name)) {
+		dir->offset = DIR_OFFSET_BASE;
+		*ofs = dir->offset;
+		return NT_STATUS_OK;
+	}
+
+	for (i=dir->name_cache_index;i>=0;i--) {
+		struct name_cache_entry *e = &dir->name_cache[i];
+		if (e->name && strcasecmp_m(name, e->name) == 0) {
+			*ofs = e->offset;
+			return NT_STATUS_OK;
+		}
+	}
+	for (i=NAME_CACHE_SIZE-1;i>dir->name_cache_index;i--) {
+		struct name_cache_entry *e = &dir->name_cache[i];
+		if (e->name && strcasecmp_m(name, e->name) == 0) {
+			*ofs = e->offset;
+			return NT_STATUS_OK;
+		}
+	}
+
+	rewinddir(dir->dir);
+
+	while ((de = readdir(dir->dir))) {
+		if (strcasecmp_m(name, de->d_name) == 0) {
+			dir->offset = telldir(dir->dir) + DIR_OFFSET_BASE;
+			*ofs = dir->offset;
+			return NT_STATUS_OK;
+		}
+	}
+
+	dir->end_of_search = true;
+
+	return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+}
+
+/*
+  seek to the given offset
+*/
+NTSTATUS pvfs_list_seek_ofs(struct pvfs_dir *dir, uint32_t resume_key, off_t *ofs)
+{
+	struct dirent *de;
+	int i;
+
+	dir->end_of_search = false;
+
+	if (resume_key == DIR_OFFSET_DOT) {
+		*ofs = DIR_OFFSET_DOTDOT;
+		return NT_STATUS_OK;
+	}
+
+	if (resume_key == DIR_OFFSET_DOTDOT) {
+		*ofs = DIR_OFFSET_BASE;
+		return NT_STATUS_OK;
+	}
+
+	if (resume_key == DIR_OFFSET_BASE) {
+		rewinddir(dir->dir);
+		if ((de=readdir(dir->dir)) == NULL) {
+			dir->end_of_search = true;
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+		*ofs = telldir(dir->dir) + DIR_OFFSET_BASE;
+		dir->offset = *ofs;
+		return NT_STATUS_OK;
+	}
+
+	for (i=dir->name_cache_index;i>=0;i--) {
+		struct name_cache_entry *e = &dir->name_cache[i];
+		if (resume_key == (uint32_t)e->offset) {
+			*ofs = e->offset;
+			return NT_STATUS_OK;
+		}
+	}
+	for (i=NAME_CACHE_SIZE-1;i>dir->name_cache_index;i--) {
+		struct name_cache_entry *e = &dir->name_cache[i];
+		if (resume_key == (uint32_t)e->offset) {
+			*ofs = e->offset;
+			return NT_STATUS_OK;
+		}
+	}
+
+	rewinddir(dir->dir);
+
+	while ((de = readdir(dir->dir))) {
+		dir->offset = telldir(dir->dir) + DIR_OFFSET_BASE;
+		if (resume_key == (uint32_t)dir->offset) {
+			*ofs = dir->offset;
+			return NT_STATUS_OK;
+		}
+	}
+
+	dir->end_of_search = true;
+
+	return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+}
+
+
+/*
+  see if a directory is empty
+*/
+bool pvfs_directory_empty(struct pvfs_state *pvfs, struct pvfs_filename *name)
+{
+	struct dirent *de;
+	DIR *dir = opendir(name->full_name);
+	if (dir == NULL) {
+		return true;
+	}
+
+	while ((de = readdir(dir))) {
+		if (!ISDOT(de->d_name) && !ISDOTDOT(de->d_name)) {
+			closedir(dir);
+			return false;
+		}
+	}
+
+	closedir(dir);
+	return true;
+}
diff --git a/source4/ntvfs/posix/pvfs_fileinfo.c b/source4/ntvfs/posix/pvfs_fileinfo.c
new file mode 100644
index 0000000..977ea4f
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_fileinfo.c
@@ -0,0 +1,158 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - 
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "lib/util/time.h"
+
+/****************************************************************************
+ Change a unix mode to a dos mode.
+****************************************************************************/
+static uint32_t dos_mode_from_stat(struct pvfs_state *pvfs, struct stat *st)
+{
+	int result = 0;
+
+	if ((st->st_mode & S_IWUSR) == 0)
+		result |= FILE_ATTRIBUTE_READONLY;
+	
+	if ((pvfs->flags & PVFS_FLAG_MAP_ARCHIVE) && ((st->st_mode & S_IXUSR) != 0))
+		result |= FILE_ATTRIBUTE_ARCHIVE;
+	
+	if ((pvfs->flags & PVFS_FLAG_MAP_SYSTEM) && ((st->st_mode & S_IXGRP) != 0))
+		result |= FILE_ATTRIBUTE_SYSTEM;
+	
+	if ((pvfs->flags & PVFS_FLAG_MAP_HIDDEN) && ((st->st_mode & S_IXOTH) != 0))
+		result |= FILE_ATTRIBUTE_HIDDEN;
+  
+	if (S_ISDIR(st->st_mode))
+		result = FILE_ATTRIBUTE_DIRECTORY | (result & FILE_ATTRIBUTE_READONLY);
+
+	return result;
+}
+
+
+
+/*
+  fill in the dos file attributes for a file
+*/
+NTSTATUS pvfs_fill_dos_info(struct pvfs_state *pvfs, struct pvfs_filename *name,
+			    unsigned int flags, int fd)
+{
+	NTSTATUS status;
+	DATA_BLOB lkey;
+	NTTIME write_time;
+
+	/* make directories appear as size 0 with 1 link */
+	if (S_ISDIR(name->st.st_mode)) {
+		name->st.st_size = 0;
+		name->st.st_nlink = 1;
+	} else if (name->stream_id == 0) {
+		name->stream_name = NULL;
+	}
+
+	/* for now just use the simple samba mapping */
+	unix_to_nt_time(&name->dos.create_time, name->st.st_ctime);
+	unix_to_nt_time(&name->dos.access_time, name->st.st_atime);
+	unix_to_nt_time(&name->dos.write_time,  name->st.st_mtime);
+	unix_to_nt_time(&name->dos.change_time, name->st.st_ctime);
+	name->dos.create_time += get_ctimensec(&name->st) / 100;
+	name->dos.access_time += get_atimensec(&name->st) / 100;
+	name->dos.write_time  += get_mtimensec(&name->st) / 100;
+	name->dos.change_time += get_ctimensec(&name->st) / 100;
+	name->dos.attrib = dos_mode_from_stat(pvfs, &name->st);
+	name->dos.alloc_size = pvfs_round_alloc_size(pvfs, name->st.st_size);
+	name->dos.nlink = name->st.st_nlink;
+	name->dos.ea_size = 4;  /* TODO: Fill this in without hitting the stream bad in pvfs_doseas_load() */
+	if (pvfs->ntvfs->ctx->protocol >= PROTOCOL_SMB2_02) {
+		/* SMB2 represents a null EA with zero bytes */
+		name->dos.ea_size = 0;
+	}
+	
+	name->dos.file_id = (((uint64_t)name->st.st_dev)<<32) | name->st.st_ino;
+	name->dos.flags = 0;
+
+	status = pvfs_dosattrib_load(pvfs, name, fd);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (flags & PVFS_RESOLVE_NO_OPENDB) {
+		return NT_STATUS_OK;
+	}
+
+	status = pvfs_locking_key(name, name, &lkey);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	status = odb_get_file_infos(pvfs->odb_context, &lkey,
+				    NULL, &write_time);
+	data_blob_free(&lkey);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(1,("WARNING: odb_get_file_infos: %s\n", nt_errstr(status)));
+		return status;
+	}
+
+	if (!null_time(write_time)) {
+		name->dos.write_time = write_time;
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  return a set of unix file permissions for a new file or directory
+*/
+mode_t pvfs_fileperms(struct pvfs_state *pvfs, uint32_t attrib)
+{
+	mode_t mode = (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE) &&
+	    (attrib & FILE_ATTRIBUTE_READONLY)) {
+		mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
+	}
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		if ((attrib & FILE_ATTRIBUTE_ARCHIVE) &&
+		    (pvfs->flags & PVFS_FLAG_MAP_ARCHIVE)) {
+			mode |= S_IXUSR;
+		}
+		if ((attrib & FILE_ATTRIBUTE_SYSTEM) &&
+		    (pvfs->flags & PVFS_FLAG_MAP_SYSTEM)) {
+			mode |= S_IXGRP;
+		}
+		if ((attrib & FILE_ATTRIBUTE_HIDDEN) &&
+		    (pvfs->flags & PVFS_FLAG_MAP_HIDDEN)) {
+			mode |= S_IXOTH;
+		}
+	}
+
+	if (attrib & FILE_ATTRIBUTE_DIRECTORY) {
+		mode |= (S_IFDIR | S_IWUSR);
+		mode |= (S_IXUSR | S_IXGRP | S_IXOTH);                 
+		mode &= pvfs->options.dir_mask;
+		mode |= pvfs->options.force_dir_mode;
+	} else {
+		mode &= pvfs->options.create_mask;
+		mode |= pvfs->options.force_create_mode;
+	}
+
+	return mode;
+}
+
+
diff --git a/source4/ntvfs/posix/pvfs_flush.c b/source4/ntvfs/posix/pvfs_flush.c
new file mode 100644
index 0000000..f425fcc
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_flush.c
@@ -0,0 +1,80 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - flush
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+
+/*
+  flush a single open file
+*/
+static void pvfs_flush_file(struct pvfs_state *pvfs, struct pvfs_file *f)
+{
+	if (f->handle->fd == -1) {
+		return;
+	}
+	if (pvfs->flags & PVFS_FLAG_STRICT_SYNC) {
+		fsync(f->handle->fd);
+	}
+}
+
+/*
+  flush a fnum
+*/
+NTSTATUS pvfs_flush(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req,
+		    union smb_flush *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+
+	switch (io->generic.level) {
+	case RAW_FLUSH_FLUSH:
+	case RAW_FLUSH_SMB2:
+		/* TODO: take care of io->smb2.in.unknown */
+		f = pvfs_find_fd(pvfs, req, io->generic.in.file.ntvfs);
+		if (!f) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+		pvfs_flush_file(pvfs, f);
+		io->smb2.out.reserved = 0;
+		return NT_STATUS_OK;
+
+	case RAW_FLUSH_ALL:
+		if (!(pvfs->flags & PVFS_FLAG_STRICT_SYNC)) {
+			return NT_STATUS_OK;
+		}
+
+		/* 
+		 * they are asking to flush all open files
+		 * for the given SMBPID
+		 */
+		for (f=pvfs->files.list;f;f=f->next) {
+			if (f->ntvfs->smbpid != req->smbpid) continue;
+
+			pvfs_flush_file(pvfs, f);
+		}
+
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
diff --git a/source4/ntvfs/posix/pvfs_fsinfo.c b/source4/ntvfs/posix/pvfs_fsinfo.c
new file mode 100644
index 0000000..c355c19
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_fsinfo.c
@@ -0,0 +1,224 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - fsinfo
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/xattr.h"
+#include "librpc/ndr/libndr.h"
+
+/* We use libblkid out of e2fsprogs to identify UUID of a volume */
+#ifdef HAVE_LIBBLKID
+#include <blkid/blkid.h>
+#endif
+
+static NTSTATUS pvfs_blkid_fs_uuid(struct pvfs_state *pvfs, struct stat *st, struct GUID *uuid)
+{
+#ifdef HAVE_LIBBLKID
+	NTSTATUS status;
+	char *uuid_value = NULL;
+	char *devname = NULL;
+
+	devname = blkid_devno_to_devname(st->st_dev);
+	if (!devname) {
+		ZERO_STRUCTP(uuid);
+		return NT_STATUS_OK;
+	}
+
+	uuid_value = blkid_get_tag_value(NULL, "UUID", devname);
+	free(devname);
+	if (!uuid_value) {
+		ZERO_STRUCTP(uuid);
+		return NT_STATUS_OK;
+	}
+
+	status = GUID_from_string(uuid_value, uuid);
+	free(uuid_value);
+	if (!NT_STATUS_IS_OK(status)) {
+		ZERO_STRUCTP(uuid);
+		return NT_STATUS_OK;
+	}
+	return NT_STATUS_OK;
+#else
+	ZERO_STRUCTP(uuid);
+	return NT_STATUS_OK;
+#endif
+}
+
+static NTSTATUS pvfs_cache_base_fs_uuid(struct pvfs_state *pvfs, struct stat *st)
+{
+	NTSTATUS status;
+	struct GUID uuid;
+
+	if (pvfs->base_fs_uuid) return NT_STATUS_OK;
+
+	status = pvfs_blkid_fs_uuid(pvfs, st, &uuid);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	pvfs->base_fs_uuid = talloc(pvfs, struct GUID);
+	NT_STATUS_HAVE_NO_MEMORY(pvfs->base_fs_uuid);
+	*pvfs->base_fs_uuid = uuid;
+
+	return NT_STATUS_OK;
+}
+/*
+  return filesystem space info
+*/
+NTSTATUS pvfs_fsinfo(struct ntvfs_module_context *ntvfs,
+		     struct ntvfs_request *req, union smb_fsinfo *fs)
+{
+	NTSTATUS status;
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	uint64_t blocks_free, blocks_total;
+	unsigned int bpunit;
+	struct stat st;
+	const uint16_t block_size = 512;
+
+	/* only some levels need the expensive sys_fsusage() call */
+	switch (fs->generic.level) {
+	case RAW_QFS_DSKATTR:
+	case RAW_QFS_ALLOCATION:
+	case RAW_QFS_SIZE_INFO:
+	case RAW_QFS_SIZE_INFORMATION:
+	case RAW_QFS_FULL_SIZE_INFORMATION:
+		if (sys_fsusage(pvfs->base_directory, &blocks_free, &blocks_total) == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+		break;
+	default:
+		break;
+	}
+
+	if (stat(pvfs->base_directory, &st) != 0) {
+		return NT_STATUS_DISK_CORRUPT_ERROR;
+	}
+
+	/* now fill in the out fields */
+	switch (fs->generic.level) {
+	case RAW_QFS_GENERIC:
+		return NT_STATUS_INVALID_LEVEL;
+
+	case RAW_QFS_DSKATTR:
+		/* we need to scale the sizes to fit */
+		for (bpunit=64; bpunit<0x10000; bpunit *= 2) {
+			if (blocks_total * (double)block_size < bpunit * 512 * 65535.0) {
+				break;
+			}
+		}
+		fs->dskattr.out.blocks_per_unit = bpunit;
+		fs->dskattr.out.block_size = block_size;
+		fs->dskattr.out.units_total = (blocks_total * (double)block_size) / (bpunit * 512);
+		fs->dskattr.out.units_free  = (blocks_free  * (double)block_size) / (bpunit * 512);
+
+		/* we must return a maximum of 2G to old DOS systems, or they get very confused */
+		if (bpunit > 64 && req->ctx->protocol <= PROTOCOL_LANMAN2) {
+			fs->dskattr.out.blocks_per_unit = 64;
+			fs->dskattr.out.units_total = 0xFFFF;
+			fs->dskattr.out.units_free = 0xFFFF;
+		}
+		return NT_STATUS_OK;
+
+	case RAW_QFS_ALLOCATION:
+		fs->allocation.out.fs_id = st.st_dev;
+		fs->allocation.out.total_alloc_units = blocks_total;
+		fs->allocation.out.avail_alloc_units = blocks_free;
+		fs->allocation.out.sectors_per_unit = 1;
+		fs->allocation.out.bytes_per_sector = block_size;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_VOLUME:
+		fs->volume.out.serial_number = st.st_ino;
+		fs->volume.out.volume_name.s = pvfs->share_name;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_VOLUME_INFO:
+	case RAW_QFS_VOLUME_INFORMATION:
+		unix_to_nt_time(&fs->volume_info.out.create_time, st.st_ctime);
+		fs->volume_info.out.serial_number = st.st_ino;
+		fs->volume_info.out.volume_name.s = pvfs->share_name;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_SIZE_INFO:
+	case RAW_QFS_SIZE_INFORMATION:
+		fs->size_info.out.total_alloc_units = blocks_total;
+		fs->size_info.out.avail_alloc_units = blocks_free;
+		fs->size_info.out.sectors_per_unit = 1;
+		fs->size_info.out.bytes_per_sector = block_size;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_DEVICE_INFO:
+	case RAW_QFS_DEVICE_INFORMATION:
+		fs->device_info.out.device_type = 0;
+		fs->device_info.out.characteristics = 0;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_ATTRIBUTE_INFO:
+	case RAW_QFS_ATTRIBUTE_INFORMATION:
+		fs->attribute_info.out.fs_attr                   = pvfs->fs_attribs;
+		fs->attribute_info.out.max_file_component_length = 255;
+		fs->attribute_info.out.fs_type.s                 = ntvfs->ctx->fs_type;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_QUOTA_INFORMATION:
+		ZERO_STRUCT(fs->quota_information.out.unknown);
+		fs->quota_information.out.quota_soft = 0;
+		fs->quota_information.out.quota_hard = 0;
+		fs->quota_information.out.quota_flags = 0;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_FULL_SIZE_INFORMATION:
+		fs->full_size_information.out.total_alloc_units = blocks_total;
+		fs->full_size_information.out.call_avail_alloc_units = blocks_free;
+		fs->full_size_information.out.actual_avail_alloc_units = blocks_free;
+		fs->full_size_information.out.sectors_per_unit = 1;
+		fs->full_size_information.out.bytes_per_sector = block_size;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_OBJECTID_INFORMATION:
+		ZERO_STRUCT(fs->objectid_information.out.guid);
+		ZERO_STRUCT(fs->objectid_information.out.unknown);
+
+		status = pvfs_cache_base_fs_uuid(pvfs, &st);
+		NT_STATUS_NOT_OK_RETURN(status);
+
+		fs->objectid_information.out.guid = *pvfs->base_fs_uuid;
+		return NT_STATUS_OK;
+
+	case RAW_QFS_SECTOR_SIZE_INFORMATION:
+		fs->sector_size_info.out.logical_bytes_per_sector = block_size;
+		fs->sector_size_info.out.phys_bytes_per_sector_atomic
+								= block_size;
+		fs->sector_size_info.out.phys_bytes_per_sector_perf
+								= block_size;
+		fs->sector_size_info.out.fs_effective_phys_bytes_per_sector_atomic
+								= block_size;
+		fs->sector_size_info.out.flags
+					= QFS_SSINFO_FLAGS_ALIGNED_DEVICE
+				| QFS_SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE;
+		fs->sector_size_info.out.byte_off_sector_align = 0;
+		fs->sector_size_info.out.byte_off_partition_align = 0;
+		return NT_STATUS_OK;
+
+	default:
+		break;
+	}
+	return NT_STATUS_INVALID_LEVEL;
+}
diff --git a/source4/ntvfs/posix/pvfs_ioctl.c b/source4/ntvfs/posix/pvfs_ioctl.c
new file mode 100644
index 0000000..1d5e8fd
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_ioctl.c
@@ -0,0 +1,82 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - open and close
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "../libcli/smb/smb_constants.h"
+
+/*
+  old ioctl interface 
+*/
+static NTSTATUS pvfs_ioctl_old(struct ntvfs_module_context *ntvfs,
+			struct ntvfs_request *req, union smb_ioctl *io)
+{
+	return NT_STATUS_DOS(ERRSRV, ERRerror);
+}
+
+/*
+  nt ioctl interface 
+*/
+static NTSTATUS pvfs_ntioctl(struct ntvfs_module_context *ntvfs,
+			     struct ntvfs_request *req, union smb_ioctl *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+
+	f = pvfs_find_fd(pvfs, req, io->ntioctl.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	switch (io->ntioctl.in.function) {
+	case FSCTL_SET_SPARSE:
+		/* maybe some posix systems have a way of marking
+		   a file non-sparse? */
+		io->ntioctl.out.blob = data_blob(NULL, 0);
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  ioctl interface 
+*/
+NTSTATUS pvfs_ioctl(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req,
+		    union smb_ioctl *io)
+{
+	switch (io->generic.level) {
+	case RAW_IOCTL_IOCTL:
+		return pvfs_ioctl_old(ntvfs, req, io);
+
+	case RAW_IOCTL_NTIOCTL:
+		return pvfs_ntioctl(ntvfs, req, io);
+
+	case RAW_IOCTL_SMB2:
+	case RAW_IOCTL_SMB2_NO_HANDLE:
+		/* see WSPP SMB2 test 46 */
+		return NT_STATUS_INVALID_DEVICE_REQUEST;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
diff --git a/source4/ntvfs/posix/pvfs_lock.c b/source4/ntvfs/posix/pvfs_lock.c
new file mode 100644
index 0000000..54c7a33
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_lock.c
@@ -0,0 +1,411 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - locking
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/time.h"
+#include "../lib/util/dlinklist.h"
+#include "messaging/messaging.h"
+
+
+/*
+  check if we can perform IO on a range that might be locked
+*/
+NTSTATUS pvfs_check_lock(struct pvfs_state *pvfs,
+			 struct pvfs_file *f,
+			 uint32_t smbpid,
+			 uint64_t offset, uint64_t count,
+			 enum brl_type rw)
+{
+	if (!(pvfs->flags & PVFS_FLAG_STRICT_LOCKING)) {
+		return NT_STATUS_OK;
+	}
+
+	return brlock_locktest(pvfs->brl_context,
+			    f->brl_handle,
+			    smbpid,
+			    offset, count, rw);
+}
+
+/* this state structure holds information about a lock we are waiting on */
+struct pvfs_pending_lock {
+	struct pvfs_pending_lock *next, *prev;
+	struct pvfs_state *pvfs;
+	union smb_lock *lck;
+	struct pvfs_file *f;
+	struct ntvfs_request *req;
+	int pending_lock;
+	struct pvfs_wait *wait_handle;
+	struct timeval end_time;
+};
+
+/*
+  a secondary attempt to setup a lock has failed - back out
+  the locks we did get and send an error
+*/
+static void pvfs_lock_async_failed(struct pvfs_state *pvfs,
+				   struct ntvfs_request *req,
+				   struct pvfs_file *f,
+				   struct smb_lock_entry *locks,
+				   int i,
+				   NTSTATUS status)
+{
+	/* undo the locks we just did */
+	for (i--;i>=0;i--) {
+		brlock_unlock(pvfs->brl_context,
+			   f->brl_handle,
+			   locks[i].pid,
+			   locks[i].offset,
+			   locks[i].count);
+		f->lock_count--;
+	}
+	req->async_states->status = status;
+	req->async_states->send_fn(req);
+}
+
+
+/*
+  called when we receive a pending lock notification. It means that
+  either our lock timed out or someone else has unlocked a overlapping
+  range, so we should try the lock again. Note that on timeout we
+  do retry the lock, giving it a last chance.
+*/
+static void pvfs_pending_lock_continue(void *private_data, enum pvfs_wait_notice reason)
+{
+	struct pvfs_pending_lock *pending = talloc_get_type(private_data,
+					    struct pvfs_pending_lock);
+	struct pvfs_state *pvfs = pending->pvfs;
+	struct pvfs_file *f = pending->f;
+	struct ntvfs_request *req = pending->req;
+	union smb_lock *lck = pending->lck;
+	struct smb_lock_entry *locks;
+	enum brl_type rw;
+	NTSTATUS status;
+	int i;
+	bool timed_out;
+
+	timed_out = (reason != PVFS_WAIT_EVENT);
+
+	locks = lck->lockx.in.locks + lck->lockx.in.ulock_cnt;
+
+	if (lck->lockx.in.mode & LOCKING_ANDX_SHARED_LOCK) {
+		rw = READ_LOCK;
+	} else {
+		rw = WRITE_LOCK;
+	}
+
+	DLIST_REMOVE(f->pending_list, pending);
+
+	/* we don't retry on a cancel */
+	if (reason == PVFS_WAIT_CANCEL) {
+		if (pvfs->ntvfs->ctx->protocol < PROTOCOL_SMB2_02) {
+			status = NT_STATUS_FILE_LOCK_CONFLICT;
+		} else {
+			status = NT_STATUS_CANCELLED;
+		}
+	} else {
+		/* 
+		 * here it's important to pass the pending pointer
+		 * because with this we'll get the correct error code
+		 * FILE_LOCK_CONFLICT in the error case
+		 */
+		status = brlock_lock(pvfs->brl_context,
+				  f->brl_handle,
+				  locks[pending->pending_lock].pid,
+				  locks[pending->pending_lock].offset,
+				  locks[pending->pending_lock].count,
+				  rw, pending);
+	}
+	if (NT_STATUS_IS_OK(status)) {
+		f->lock_count++;
+		timed_out = false;
+	}
+
+	/* if we have failed and timed out, or succeeded, then we
+	   don't need the pending lock any more */
+	if (NT_STATUS_IS_OK(status) || timed_out) {
+		NTSTATUS status2;
+		status2 = brlock_remove_pending(pvfs->brl_context, 
+					     f->brl_handle, pending);
+		if (!NT_STATUS_IS_OK(status2)) {
+			DEBUG(0,("pvfs_lock: failed to remove pending lock - %s\n", nt_errstr(status2)));
+		}
+		talloc_free(pending->wait_handle);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		if (timed_out) {
+			/* no more chances */
+			pvfs_lock_async_failed(pvfs, req, f, locks, pending->pending_lock, status);
+			talloc_free(pending);
+		} else {
+			/* we can try again */
+			DLIST_ADD(f->pending_list, pending);
+		}
+		return;
+	}
+
+	/* if we haven't timed out yet, then we can do more pending locks */
+	if (rw == READ_LOCK) {
+		rw = PENDING_READ_LOCK;
+	} else {
+		rw = PENDING_WRITE_LOCK;
+	}
+
+	/* we've now got the pending lock. try and get the rest, which might
+	   lead to more pending locks */
+	for (i=pending->pending_lock+1;i<lck->lockx.in.lock_cnt;i++) {		
+		if (pending) {
+			pending->pending_lock = i;
+		}
+
+		status = brlock_lock(pvfs->brl_context,
+				  f->brl_handle,
+				  locks[i].pid,
+				  locks[i].offset,
+				  locks[i].count,
+				  rw, pending);
+		if (!NT_STATUS_IS_OK(status)) {
+			if (pending) {
+				/* a timed lock failed - setup a wait message to handle
+				   the pending lock notification or a timeout */
+				pending->wait_handle = pvfs_wait_message(pvfs, req, MSG_BRL_RETRY, 
+									 pending->end_time,
+									 pvfs_pending_lock_continue,
+									 pending);
+				if (pending->wait_handle == NULL) {
+					pvfs_lock_async_failed(pvfs, req, f, locks, i, NT_STATUS_NO_MEMORY);
+					talloc_free(pending);
+				} else {
+					talloc_steal(pending, pending->wait_handle);
+					DLIST_ADD(f->pending_list, pending);
+				}
+				return;
+			}
+			pvfs_lock_async_failed(pvfs, req, f, locks, i, status);
+			talloc_free(pending);
+			return;
+		}
+
+		f->lock_count++;
+	}
+
+	/* we've managed to get all the locks. Tell the client */
+	req->async_states->status = NT_STATUS_OK;
+	req->async_states->send_fn(req);
+	talloc_free(pending);
+}
+
+
+/*
+  called when we close a file that might have locks
+*/
+void pvfs_lock_close(struct pvfs_state *pvfs, struct pvfs_file *f)
+{
+	struct pvfs_pending_lock *p, *next;
+
+	if (f->lock_count || f->pending_list) {
+		DEBUG(5,("pvfs_lock: removing %.0f locks on close\n", 
+			 (double)f->lock_count));
+		brlock_close(f->pvfs->brl_context, f->brl_handle);
+		f->lock_count = 0;
+	}
+
+	/* reply to all the pending lock requests, telling them the 
+	   lock failed */
+	for (p=f->pending_list;p;p=next) {
+		next = p->next;
+		DLIST_REMOVE(f->pending_list, p);
+		p->req->async_states->status = NT_STATUS_RANGE_NOT_LOCKED;
+		p->req->async_states->send_fn(p->req);
+	}
+}
+
+
+/*
+  cancel a set of locks
+*/
+static NTSTATUS pvfs_lock_cancel(struct pvfs_state *pvfs, struct ntvfs_request *req, union smb_lock *lck,
+				 struct pvfs_file *f)
+{
+	struct pvfs_pending_lock *p;
+
+	for (p=f->pending_list;p;p=p->next) {
+		/* check if the lock request matches exactly - you can only cancel with exact matches */
+		if (p->lck->lockx.in.ulock_cnt == lck->lockx.in.ulock_cnt &&
+		    p->lck->lockx.in.lock_cnt  == lck->lockx.in.lock_cnt &&
+		    p->lck->lockx.in.file.ntvfs== lck->lockx.in.file.ntvfs &&
+		    p->lck->lockx.in.mode      == (lck->lockx.in.mode & ~LOCKING_ANDX_CANCEL_LOCK)) {
+			int i;
+
+			for (i=0;i<lck->lockx.in.ulock_cnt + lck->lockx.in.lock_cnt;i++) {
+				if (p->lck->lockx.in.locks[i].pid != lck->lockx.in.locks[i].pid ||
+				    p->lck->lockx.in.locks[i].offset != lck->lockx.in.locks[i].offset ||
+				    p->lck->lockx.in.locks[i].count != lck->lockx.in.locks[i].count) {
+					break;
+				}
+			}
+			if (i < lck->lockx.in.ulock_cnt) continue;
+
+			/* an exact match! we can cancel it, which is equivalent
+			   to triggering the timeout early */
+			pvfs_pending_lock_continue(p, PVFS_WAIT_TIMEOUT);
+			return NT_STATUS_OK;
+		}
+	}
+
+	return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
+}
+
+
+/*
+  lock or unlock a byte range
+*/
+NTSTATUS pvfs_lock(struct ntvfs_module_context *ntvfs,
+		   struct ntvfs_request *req, union smb_lock *lck)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+	struct smb_lock_entry *locks;
+	int i;
+	enum brl_type rw;
+	struct pvfs_pending_lock *pending = NULL;
+	NTSTATUS status;
+
+	if (lck->generic.level != RAW_LOCK_GENERIC) {
+		return ntvfs_map_lock(ntvfs, req, lck);
+	}
+
+	if (lck->lockx.in.mode & LOCKING_ANDX_OPLOCK_RELEASE) {
+		return pvfs_oplock_release(ntvfs, req, lck);
+	}
+
+	f = pvfs_find_fd(pvfs, req, lck->lockx.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	if (f->handle->fd == -1) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	status = pvfs_break_level2_oplocks(f);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (lck->lockx.in.timeout != 0 && 
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		pending = talloc(f, struct pvfs_pending_lock);
+		if (pending == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+
+		pending->pvfs = pvfs;
+		pending->lck = lck;
+		pending->f = f;
+		pending->req = req;
+
+		pending->end_time = 
+			timeval_current_ofs_msec(lck->lockx.in.timeout);
+	}
+
+	if (lck->lockx.in.mode & LOCKING_ANDX_SHARED_LOCK) {
+		rw = pending? PENDING_READ_LOCK : READ_LOCK;
+	} else {
+		rw = pending? PENDING_WRITE_LOCK : WRITE_LOCK;
+	}
+
+	if (lck->lockx.in.mode & LOCKING_ANDX_CANCEL_LOCK) {
+		talloc_free(pending);
+		return pvfs_lock_cancel(pvfs, req, lck, f);
+	}
+
+	if (lck->lockx.in.mode & LOCKING_ANDX_CHANGE_LOCKTYPE) {
+		/* this seems to not be supported by any windows server,
+		   or used by any clients */
+		talloc_free(pending);
+		return NT_STATUS_DOS(ERRDOS, ERRnoatomiclocks);
+	}
+
+	/* the unlocks happen first */
+	locks = lck->lockx.in.locks;
+
+	for (i=0;i<lck->lockx.in.ulock_cnt;i++) {
+		status = brlock_unlock(pvfs->brl_context,
+				    f->brl_handle,
+				    locks[i].pid,
+				    locks[i].offset,
+				    locks[i].count);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(pending);
+			return status;
+		}
+		f->lock_count--;
+	}
+
+	locks += i;
+
+	for (i=0;i<lck->lockx.in.lock_cnt;i++) {
+		if (pending) {
+			pending->pending_lock = i;
+		}
+
+		status = brlock_lock(pvfs->brl_context,
+				  f->brl_handle,
+				  locks[i].pid,
+				  locks[i].offset,
+				  locks[i].count,
+				  rw, pending);
+		if (!NT_STATUS_IS_OK(status)) {
+			if (pending) {
+				/* a timed lock failed - setup a wait message to handle
+				   the pending lock notification or a timeout */
+				pending->wait_handle = pvfs_wait_message(pvfs, req, MSG_BRL_RETRY, 
+									 pending->end_time,
+									 pvfs_pending_lock_continue,
+									 pending);
+				if (pending->wait_handle == NULL) {
+					talloc_free(pending);
+					return NT_STATUS_NO_MEMORY;
+				}
+				talloc_steal(pending, pending->wait_handle);
+				DLIST_ADD(f->pending_list, pending);
+				return NT_STATUS_OK;
+			}
+
+			/* undo the locks we just did */
+			for (i--;i>=0;i--) {
+				brlock_unlock(pvfs->brl_context,
+					   f->brl_handle,
+					   locks[i].pid,
+					   locks[i].offset,
+					   locks[i].count);
+				f->lock_count--;
+			}
+			talloc_free(pending);
+			return status;
+		}
+		f->lock_count++;
+	}
+
+	talloc_free(pending);
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_mkdir.c b/source4/ntvfs/posix/pvfs_mkdir.c
new file mode 100644
index 0000000..2cf43ab
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_mkdir.c
@@ -0,0 +1,196 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - mkdir and rmdir
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/dir.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/security.h"
+
+/*
+  create a directory with EAs
+*/
+static NTSTATUS pvfs_t2mkdir(struct pvfs_state *pvfs,
+			     struct ntvfs_request *req, union smb_mkdir *md)
+{
+	NTSTATUS status;
+	struct pvfs_filename *name;
+	mode_t mode;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, md->t2mkdir.in.path, 0, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name->exists) {
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name, SEC_DIR_ADD_FILE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	mode = pvfs_fileperms(pvfs, FILE_ATTRIBUTE_DIRECTORY);
+
+	if (pvfs_sys_mkdir(pvfs, name->full_name, mode, name->allow_override) == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	pvfs_xattr_unlink_hook(pvfs, name->full_name);
+
+	status = pvfs_resolve_name(pvfs, req, md->t2mkdir.in.path, 0, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	if (!name->exists ||
+	    !(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	/* setup an inherited acl from the parent */
+	status = pvfs_acl_inherit(pvfs, req, name, -1);
+	if (!NT_STATUS_IS_OK(status)) {
+		pvfs_sys_rmdir(pvfs, name->full_name, name->allow_override);
+		return status;
+	}
+
+	/* setup any EAs that were asked for */
+	status = pvfs_setfileinfo_ea_set(pvfs, name, -1, 
+					 md->t2mkdir.in.num_eas,
+					 md->t2mkdir.in.eas);
+	if (!NT_STATUS_IS_OK(status)) {
+		pvfs_sys_rmdir(pvfs, name->full_name, name->allow_override);
+		return status;
+	}
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_ADDED, 
+		       FILE_NOTIFY_CHANGE_DIR_NAME,
+		       name->full_name);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  create a directory
+*/
+NTSTATUS pvfs_mkdir(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req, union smb_mkdir *md)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct pvfs_filename *name;
+	mode_t mode;
+
+	if (md->generic.level == RAW_MKDIR_T2MKDIR) {
+		return pvfs_t2mkdir(pvfs, req, md);
+	}
+
+	if (md->generic.level != RAW_MKDIR_MKDIR) {
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, md->mkdir.in.path, 0, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name->exists) {
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name, SEC_DIR_ADD_FILE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	mode = pvfs_fileperms(pvfs, FILE_ATTRIBUTE_DIRECTORY);
+
+	if (pvfs_sys_mkdir(pvfs, name->full_name, mode, name->allow_override) == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	pvfs_xattr_unlink_hook(pvfs, name->full_name);
+
+	/* setup an inherited acl from the parent */
+	status = pvfs_acl_inherit(pvfs, req, name, -1);
+	if (!NT_STATUS_IS_OK(status)) {
+		pvfs_sys_rmdir(pvfs, name->full_name, name->allow_override);
+		return status;
+	}
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_ADDED, 
+		       FILE_NOTIFY_CHANGE_DIR_NAME,
+		       name->full_name);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  remove a directory
+*/
+NTSTATUS pvfs_rmdir(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req, struct smb_rmdir *rd)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct pvfs_filename *name;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, rd->in.path, 0, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	status = pvfs_access_check_simple(pvfs, req, name, SEC_STD_DELETE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_xattr_unlink_hook(pvfs, name->full_name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (pvfs_sys_rmdir(pvfs, name->full_name, name->allow_override) == -1) {
+		/* some olders systems don't return ENOTEMPTY to rmdir() */
+		if (errno == EEXIST) {
+			return NT_STATUS_DIRECTORY_NOT_EMPTY;
+		}
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_REMOVED, 
+		       FILE_NOTIFY_CHANGE_DIR_NAME,
+		       name->full_name);
+
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_notify.c b/source4/ntvfs/posix/pvfs_notify.c
new file mode 100644
index 0000000..91a151b
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_notify.c
@@ -0,0 +1,300 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - notify
+
+   Copyright (C) Andrew Tridgell 2006
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "lib/messaging/irpc.h"
+#include "messaging/messaging.h"
+#include "../lib/util/dlinklist.h"
+#include "lib/events/events.h"
+
+/* pending notifies buffer, hung off struct pvfs_file for open directories
+   that have used change notify */
+struct pvfs_notify_buffer {
+	struct pvfs_file *f;
+	uint32_t num_changes;
+	struct notify_changes *changes;
+	uint32_t max_buffer_size;
+	uint32_t current_buffer_size;
+	bool overflowed;
+
+	/* a list of requests waiting for events on this handle */
+	struct notify_pending {
+		struct notify_pending *next, *prev;
+		struct ntvfs_request *req;
+		union smb_notify *info;
+	} *pending;
+};
+
+/*
+  send a notify on the next event run. 
+*/
+static void pvfs_notify_send_next(struct tevent_context *ev, struct tevent_timer *te, 
+				  struct timeval t, void *ptr)
+{
+	struct ntvfs_request *req = talloc_get_type(ptr, struct ntvfs_request);
+	req->async_states->send_fn(req);
+}
+
+
+/*
+  send a reply to a pending notify request
+*/
+static void pvfs_notify_send(struct pvfs_notify_buffer *notify_buffer, 
+			     NTSTATUS status, bool immediate)
+{
+	struct notify_pending *pending = notify_buffer->pending;
+	struct ntvfs_request *req;
+	union smb_notify *info;
+
+	if (notify_buffer->current_buffer_size > notify_buffer->max_buffer_size && 
+	    notify_buffer->num_changes != 0) {
+		/* on buffer overflow return no changes and destroys the notify buffer */
+		notify_buffer->num_changes = 0;
+		while (notify_buffer->pending) {
+			pvfs_notify_send(notify_buffer, NT_STATUS_OK, immediate);
+		}
+		notify_buffer->overflowed = true;
+		return;
+	}
+
+	/* see if there is anyone waiting */
+	if (notify_buffer->pending == NULL) {
+		return;
+	}
+
+	DLIST_REMOVE(notify_buffer->pending, pending);
+
+	req = pending->req;
+	info = pending->info;
+
+	info->nttrans.out.num_changes = notify_buffer->num_changes;
+	info->nttrans.out.changes = talloc_steal(req, notify_buffer->changes);
+	notify_buffer->num_changes = 0;
+	notify_buffer->overflowed = false;
+	notify_buffer->changes = NULL;
+	notify_buffer->current_buffer_size = 0;
+
+	talloc_free(pending);
+
+	if (info->nttrans.out.num_changes != 0) {
+		status = NT_STATUS_OK;
+	}
+
+	req->async_states->status = status;
+
+	if (immediate) {
+		req->async_states->send_fn(req);
+		return;
+	} 
+
+	/* we can't call pvfs_notify_send() directly here, as that
+	   would free the request, and the ntvfs modules above us
+	   could use it, so call it on the next event */
+	tevent_add_timer(req->ctx->event_ctx,
+			req, timeval_zero(), pvfs_notify_send_next, req);
+}
+
+/*
+  destroy a notify buffer. Called when the handle is closed
+ */
+static int pvfs_notify_destructor(struct pvfs_notify_buffer *n)
+{
+	notify_remove(n->f->pvfs->notify_context, n);
+	n->f->notify_buffer = NULL;
+	pvfs_notify_send(n, NT_STATUS_OK, true);
+	return 0;
+}
+
+
+/*
+  called when a async notify event comes in
+*/
+static void pvfs_notify_callback(void *private_data, const struct notify_event *ev)
+{
+	struct pvfs_notify_buffer *n = talloc_get_type(private_data, struct pvfs_notify_buffer);
+	size_t len;
+	struct notify_changes *n2;
+	char *new_path;
+
+	if (n->overflowed) {
+		return;
+	}
+
+	n2 = talloc_realloc(n, n->changes, struct notify_changes, n->num_changes+1);
+	if (n2 == NULL) {
+		/* nothing much we can do for this */
+		return;
+	}
+	n->changes = n2;
+
+	new_path = talloc_strdup(n->changes, ev->path);
+	if (new_path == NULL) {
+		return;
+	}
+	string_replace(new_path, '/', '\\');
+
+	n->changes[n->num_changes].action = ev->action;
+	n->changes[n->num_changes].name.s = new_path;
+	n->num_changes++;
+
+	/*
+	  work out how much room this will take in the buffer
+	*/
+	len = 12 + strlen_m(ev->path)*2;
+	if (len & 3) {
+		len += 4 - (len & 3);
+	}
+	n->current_buffer_size += len;
+
+	/* send what we have, unless its the first part of a rename */
+	if (ev->action != NOTIFY_ACTION_OLD_NAME) {
+		pvfs_notify_send(n, NT_STATUS_OK, true);
+	}
+}
+
+/*
+  setup a notify buffer on a directory handle
+*/
+static NTSTATUS pvfs_notify_setup(struct pvfs_state *pvfs, struct pvfs_file *f, 
+				  uint32_t buffer_size, uint32_t filter, bool recursive)
+{
+	NTSTATUS status;
+	struct notify_entry e;
+	
+	/* We may not fill in all the elements in this entry -
+	 * structure may in future be shared with Samba3 */
+	ZERO_STRUCT(e);
+
+	/* We may not fill in all the elements in this entry -
+	 * structure may in future be shared with Samba3 */
+	ZERO_STRUCT(e);
+
+	f->notify_buffer = talloc_zero(f, struct pvfs_notify_buffer);
+	NT_STATUS_HAVE_NO_MEMORY(f->notify_buffer);
+
+	f->notify_buffer->max_buffer_size = buffer_size;
+	f->notify_buffer->f = f;
+
+	e.filter    = filter;
+	e.path      = f->handle->name->full_name;
+	if (recursive) {
+		e.subdir_filter = filter;
+	} else {
+		e.subdir_filter = 0;
+	}
+
+	status = notify_add(pvfs->notify_context, &e, 
+			    pvfs_notify_callback, f->notify_buffer);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	talloc_set_destructor(f->notify_buffer, pvfs_notify_destructor);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  called from the pvfs_wait code when either an event has come in, or
+  the notify request has been cancelled
+*/
+static void pvfs_notify_end(void *private_data, enum pvfs_wait_notice reason)
+{
+	struct pvfs_notify_buffer *notify_buffer = talloc_get_type(private_data,
+								   struct pvfs_notify_buffer);
+	if (reason == PVFS_WAIT_CANCEL) {
+		pvfs_notify_send(notify_buffer, NT_STATUS_CANCELLED, false);
+	} else {
+		pvfs_notify_send(notify_buffer, NT_STATUS_OK, true);
+	}
+}
+
+/* change notify request - always async. This request blocks until the
+   event buffer is non-empty */
+NTSTATUS pvfs_notify(struct ntvfs_module_context *ntvfs, 
+		     struct ntvfs_request *req,
+		     union smb_notify *info)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data, 
+						  struct pvfs_state);
+	struct pvfs_file *f;
+	NTSTATUS status;
+	struct notify_pending *pending;
+
+	if (info->nttrans.level != RAW_NOTIFY_NTTRANS) {
+		return ntvfs_map_notify(ntvfs, req, info);
+	}
+
+	f = pvfs_find_fd(pvfs, req, info->nttrans.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	/* this request doesn't make sense unless its async */
+	if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* its only valid for directories */
+	if (f->handle->fd != -1) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* if the handle doesn't currently have a notify buffer then
+	   create one */
+	if (f->notify_buffer == NULL) {
+		status = pvfs_notify_setup(pvfs, f, 
+					   info->nttrans.in.buffer_size, 
+					   info->nttrans.in.completion_filter,
+					   info->nttrans.in.recursive);
+		NT_STATUS_NOT_OK_RETURN(status);
+	}
+
+	/* we update the max_buffer_size on each call, but we do not
+	   update the recursive flag or filter */
+	f->notify_buffer->max_buffer_size = info->nttrans.in.buffer_size;
+
+	pending = talloc(f->notify_buffer, struct notify_pending);
+	NT_STATUS_HAVE_NO_MEMORY(pending);
+
+	pending->req = talloc_reference(pending, req);
+	NT_STATUS_HAVE_NO_MEMORY(pending->req);	
+	pending->info = info;
+
+	DLIST_ADD_END(f->notify_buffer->pending, pending);
+
+	/* if the buffer is empty then start waiting */
+	if (f->notify_buffer->num_changes == 0 && 
+	    !f->notify_buffer->overflowed) {
+		struct pvfs_wait *wait_handle;
+		wait_handle = pvfs_wait_message(pvfs, req, -1,
+						timeval_zero(),
+						pvfs_notify_end,
+						f->notify_buffer);
+		NT_STATUS_HAVE_NO_MEMORY(wait_handle);
+		talloc_steal(req, wait_handle);
+		return NT_STATUS_OK;
+	}
+
+	req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+	pvfs_notify_send(f->notify_buffer, NT_STATUS_OK, false);
+
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_open.c b/source4/ntvfs/posix/pvfs_open.c
new file mode 100644
index 0000000..de6c0ef
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_open.c
@@ -0,0 +1,2097 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - open and close
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/dir.h"
+#include "system/time.h"
+#include "../lib/util/dlinklist.h"
+#include "messaging/messaging.h"
+#include "librpc/gen_ndr/xattr.h"
+
+/*
+  find open file handle given fnum
+*/
+struct pvfs_file *pvfs_find_fd(struct pvfs_state *pvfs,
+			       struct ntvfs_request *req, struct ntvfs_handle *h)
+{
+	void *p;
+	struct pvfs_file *f;
+
+	p = ntvfs_handle_get_backend_data(h, pvfs->ntvfs);
+	if (!p) return NULL;
+
+	f = talloc_get_type(p, struct pvfs_file);
+	if (!f) return NULL;
+
+	return f;
+}
+
+/*
+  cleanup a open directory handle
+*/
+static int pvfs_dir_handle_destructor(struct pvfs_file_handle *h)
+{
+	if (h->have_opendb_entry) {
+		struct odb_lock *lck;
+		NTSTATUS status;
+		const char *delete_path = NULL;
+
+		lck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("Unable to lock opendb for close\n"));
+			return 0;
+		}
+
+		status = odb_close_file(lck, h, &delete_path);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("Unable to remove opendb entry for '%s' - %s\n",
+				 h->name->full_name, nt_errstr(status)));
+		}
+
+		if (h->name->stream_name == NULL && delete_path) {
+			status = pvfs_xattr_unlink_hook(h->pvfs, delete_path);
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(0,("Warning: xattr unlink hook failed for '%s' - %s\n",
+					 delete_path, nt_errstr(status)));
+			}
+			if (pvfs_sys_rmdir(h->pvfs, delete_path, h->name->allow_override) != 0) {
+				DEBUG(0,("pvfs_dir_handle_destructor: failed to rmdir '%s' - %s\n",
+					 delete_path, strerror(errno)));
+			}
+		}
+
+		talloc_free(lck);
+	}
+
+	return 0;
+}
+
+/*
+  cleanup a open directory fnum
+*/
+static int pvfs_dir_fnum_destructor(struct pvfs_file *f)
+{
+	DLIST_REMOVE(f->pvfs->files.list, f);
+	ntvfs_handle_remove_backend_data(f->ntvfs, f->pvfs->ntvfs);
+
+	return 0;
+}
+
+/*
+  setup any EAs and the ACL on newly created files/directories
+*/
+static NTSTATUS pvfs_open_setup_eas_acl(struct pvfs_state *pvfs,
+					struct ntvfs_request *req,
+					struct pvfs_filename *name,
+					int fd,	struct pvfs_file *f,
+					union smb_open *io,
+					struct security_descriptor *sd)
+{
+	NTSTATUS status = NT_STATUS_OK;
+
+	/* setup any EAs that were asked for */
+	if (io->ntcreatex.in.ea_list) {
+		status = pvfs_setfileinfo_ea_set(pvfs, name, fd, 
+						 io->ntcreatex.in.ea_list->num_eas,
+						 io->ntcreatex.in.ea_list->eas);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	/* setup an initial sec_desc if requested */
+	if (sd && (sd->type & SEC_DESC_DACL_PRESENT)) {
+		union smb_setfileinfo set;
+/* 
+ * TODO: set the full ACL! 
+ *       - vista denies the creation of the file with NT_STATUS_PRIVILEGE_NOT_HELD,
+ *         when a SACL is present on the sd,
+ *         but the user doesn't have SeSecurityPrivilege
+ *       - w2k3 allows it
+ */
+		set.set_secdesc.in.file.ntvfs = f->ntvfs;
+		set.set_secdesc.in.secinfo_flags = SECINFO_DACL;
+		set.set_secdesc.in.sd = sd;
+
+		status = pvfs_acl_set(pvfs, req, name, fd, SEC_STD_WRITE_DAC, &set);
+	}
+
+	return status;
+}
+
+/*
+  form the lock context used for opendb locking. Note that we must
+  zero here to take account of possible padding on some architectures
+*/
+NTSTATUS pvfs_locking_key(struct pvfs_filename *name,
+			  TALLOC_CTX *mem_ctx, DATA_BLOB *key)
+{
+	struct {
+		dev_t device;
+		ino_t inode;
+	} lock_context;
+	ZERO_STRUCT(lock_context);
+
+	lock_context.device = name->st.st_dev;
+	lock_context.inode = name->st.st_ino;
+
+	*key = data_blob_talloc(mem_ctx, &lock_context, sizeof(lock_context));
+	if (key->data == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	
+	return NT_STATUS_OK;
+}
+
+
+/*
+  open a directory
+*/
+static NTSTATUS pvfs_open_directory(struct pvfs_state *pvfs, 
+				    struct ntvfs_request *req, 
+				    struct pvfs_filename *name, 
+				    union smb_open *io)
+{
+	struct pvfs_file *f;
+	struct ntvfs_handle *h;
+	NTSTATUS status;
+	uint32_t create_action;
+	uint32_t access_mask = io->generic.in.access_mask;
+	struct odb_lock *lck;
+	bool del_on_close;
+	uint32_t create_options;
+	uint32_t share_access;
+	bool forced;
+	struct security_descriptor *sd = NULL;
+
+	create_options = io->generic.in.create_options;
+	share_access   = io->generic.in.share_access;
+
+	forced = (io->generic.in.create_options & NTCREATEX_OPTIONS_DIRECTORY)?true:false;
+
+	if (name->stream_name) {
+		if (forced) {
+			return NT_STATUS_NOT_A_DIRECTORY;
+		} else {
+			return NT_STATUS_FILE_IS_A_DIRECTORY;
+		}
+	}
+
+	/* if the client says it must be a directory, and it isn't,
+	   then fail */
+	if (name->exists && !(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+		return NT_STATUS_NOT_A_DIRECTORY;
+	}
+
+	/* found with gentest */
+	if (io->ntcreatex.in.access_mask == SEC_FLAG_MAXIMUM_ALLOWED &&
+	    (io->ntcreatex.in.create_options & NTCREATEX_OPTIONS_DIRECTORY) &&
+	    (io->ntcreatex.in.create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE)) {
+		DEBUG(3,(__location__ ": Invalid access_mask/create_options 0x%08x 0x%08x for %s\n",
+			 io->ntcreatex.in.access_mask, io->ntcreatex.in.create_options, name->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+	
+	switch (io->generic.in.open_disposition) {
+	case NTCREATEX_DISP_OPEN_IF:
+		break;
+
+	case NTCREATEX_DISP_OPEN:
+		if (!name->exists) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+		break;
+
+	case NTCREATEX_DISP_CREATE:
+		if (name->exists) {
+			return NT_STATUS_OBJECT_NAME_COLLISION;
+		}
+		break;
+
+	case NTCREATEX_DISP_OVERWRITE_IF:
+	case NTCREATEX_DISP_OVERWRITE:
+	case NTCREATEX_DISP_SUPERSEDE:
+	default:
+		DEBUG(3,(__location__ ": Invalid open disposition 0x%08x for %s\n",
+			 io->generic.in.open_disposition, name->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	status = ntvfs_handle_new(pvfs->ntvfs, req, &h);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	f = talloc(h, struct pvfs_file);
+	if (f == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	f->handle = talloc(f, struct pvfs_file_handle);
+	if (f->handle == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (name->exists) {
+		/* check the security descriptor */
+		status = pvfs_access_check(pvfs, req, name, &access_mask);
+	} else {		
+		sd = io->ntcreatex.in.sec_desc;
+		status = pvfs_access_check_create(pvfs, req, name, &access_mask, true, &sd);
+	}
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (io->generic.in.query_maximal_access) {
+		status = pvfs_access_maximal_allowed(pvfs, req, name, 
+						     &io->generic.out.maximal_access);
+		NT_STATUS_NOT_OK_RETURN(status);
+	}
+
+	f->ntvfs         = h;
+	f->pvfs          = pvfs;
+	f->pending_list  = NULL;
+	f->lock_count    = 0;
+	f->share_access  = io->generic.in.share_access;
+	f->impersonation = io->generic.in.impersonation;
+	f->access_mask   = access_mask;
+	f->brl_handle	 = NULL;
+	f->notify_buffer = NULL;
+	f->search        = NULL;
+
+	f->handle->pvfs              = pvfs;
+	f->handle->name              = talloc_steal(f->handle, name);
+	f->handle->fd                = -1;
+	f->handle->odb_locking_key   = data_blob(NULL, 0);
+	f->handle->create_options    = io->generic.in.create_options;
+	f->handle->private_flags     = io->generic.in.private_flags;
+	f->handle->seek_offset       = 0;
+	f->handle->position          = 0;
+	f->handle->mode              = 0;
+	f->handle->oplock            = NULL;
+	ZERO_STRUCT(f->handle->write_time);
+	f->handle->open_completed    = false;
+
+	if ((create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE) &&
+	    pvfs_directory_empty(pvfs, f->handle->name)) {
+		del_on_close = true;
+	} else {
+		del_on_close = false;
+	}
+
+	if (name->exists) {
+		/* form the lock context used for opendb locking */
+		status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		/* get a lock on this file before the actual open */
+		lck = odb_lock(req, pvfs->odb_context, &f->handle->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("pvfs_open: failed to lock file '%s' in opendb\n",
+				 name->full_name));
+			/* we were supposed to do a blocking lock, so something
+			   is badly wrong! */
+			return NT_STATUS_INTERNAL_DB_CORRUPTION;
+		}
+		
+		/* see if we are allowed to open at the same time as existing opens */
+		status = odb_can_open(lck, name->stream_id,
+				      share_access, access_mask, del_on_close,
+				      io->generic.in.open_disposition, false);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(lck);
+			return status;
+		}
+
+		/* now really mark the file as open */
+		status = odb_open_file(lck, f->handle, name->full_name,
+				       NULL, name->dos.write_time,
+				       false, OPLOCK_NONE, NULL);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(lck);
+			return status;
+		}
+
+		f->handle->have_opendb_entry = true;
+	}
+
+	DLIST_ADD(pvfs->files.list, f);
+
+	/* setup destructors to avoid leaks on abnormal termination */
+	talloc_set_destructor(f->handle, pvfs_dir_handle_destructor);
+	talloc_set_destructor(f, pvfs_dir_fnum_destructor);
+
+	if (!name->exists) {
+		uint32_t attrib = io->generic.in.file_attr | FILE_ATTRIBUTE_DIRECTORY;
+		mode_t mode = pvfs_fileperms(pvfs, attrib);
+
+		if (pvfs_sys_mkdir(pvfs, name->full_name, mode, name->allow_override) == -1) {
+			return pvfs_map_errno(pvfs,errno);
+		}
+
+		pvfs_xattr_unlink_hook(pvfs, name->full_name);
+
+		status = pvfs_resolve_name(pvfs, req, io->ntcreatex.in.fname, 0, &name);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto cleanup_delete;
+		}
+
+		status = pvfs_open_setup_eas_acl(pvfs, req, name, -1, f, io, sd);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto cleanup_delete;
+		}
+
+		/* form the lock context used for opendb locking */
+		status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		lck = odb_lock(req, pvfs->odb_context, &f->handle->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("pvfs_open: failed to lock file '%s' in opendb\n",
+				 name->full_name));
+			/* we were supposed to do a blocking lock, so something
+			   is badly wrong! */
+			return NT_STATUS_INTERNAL_DB_CORRUPTION;
+		}
+
+		status = odb_can_open(lck, name->stream_id,
+				      share_access, access_mask, del_on_close,
+				      io->generic.in.open_disposition, false);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			goto cleanup_delete;
+		}
+
+		status = odb_open_file(lck, f->handle, name->full_name,
+				       NULL, name->dos.write_time,
+				       false, OPLOCK_NONE, NULL);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			goto cleanup_delete;
+		}
+
+		f->handle->have_opendb_entry = true;
+
+		create_action = NTCREATEX_ACTION_CREATED;
+
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_ADDED, 
+			       FILE_NOTIFY_CHANGE_DIR_NAME,
+			       name->full_name);
+	} else {
+		create_action = NTCREATEX_ACTION_EXISTED;
+	}
+
+	if (!name->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (io->generic.in.query_on_disk_id) {
+		ZERO_ARRAY(io->generic.out.on_disk_id);
+		SBVAL(io->generic.out.on_disk_id, 0, name->st.st_ino);
+		SBVAL(io->generic.out.on_disk_id, 8, name->st.st_dev);
+	}
+
+	/* the open succeeded, keep this handle permanently */
+	status = ntvfs_handle_set_backend_data(h, pvfs->ntvfs, f);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+	f->handle->open_completed = true;
+
+	io->generic.out.oplock_level  = OPLOCK_NONE;
+	io->generic.out.file.ntvfs    = h;
+	io->generic.out.create_action = create_action;
+	io->generic.out.create_time   = name->dos.create_time;
+	io->generic.out.access_time   = name->dos.access_time;
+	io->generic.out.write_time    = name->dos.write_time;
+	io->generic.out.change_time   = name->dos.change_time;
+	io->generic.out.attrib        = name->dos.attrib;
+	io->generic.out.alloc_size    = name->dos.alloc_size;
+	io->generic.out.size          = name->st.st_size;
+	io->generic.out.file_type     = FILE_TYPE_DISK;
+	io->generic.out.ipc_state     = 0;
+	io->generic.out.is_directory  = 1;
+
+	return NT_STATUS_OK;
+
+cleanup_delete:
+	pvfs_sys_rmdir(pvfs, name->full_name, name->allow_override);
+	return status;
+}
+
+/*
+  destroy a struct pvfs_file_handle
+*/
+static int pvfs_handle_destructor(struct pvfs_file_handle *h)
+{
+	talloc_free(h->write_time.update_event);
+	h->write_time.update_event = NULL;
+
+	if ((h->create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE) &&
+	    h->name->stream_name) {
+		NTSTATUS status;
+		status = pvfs_stream_delete(h->pvfs, h->name, h->fd);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("Failed to delete stream '%s' on close of '%s'\n",
+				 h->name->stream_name, h->name->full_name));
+		}
+	}
+
+	if (h->fd != -1) {
+		if (close(h->fd) != 0) {
+			DEBUG(0,("pvfs_handle_destructor: close(%d) failed for %s - %s\n",
+				 h->fd, h->name->full_name, strerror(errno)));
+		}
+		h->fd = -1;
+	}
+
+	if (!h->write_time.update_forced &&
+	    h->write_time.update_on_close &&
+	    h->write_time.close_time == 0) {
+		struct timeval tv;
+		tv = timeval_current();
+		h->write_time.close_time = timeval_to_nttime(&tv);
+	}
+
+	if (h->have_opendb_entry) {
+		struct odb_lock *lck;
+		NTSTATUS status;
+		const char *delete_path = NULL;
+
+		lck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("Unable to lock opendb for close\n"));
+			return 0;
+		}
+
+		if (h->write_time.update_forced) {
+			status = odb_get_file_infos(h->pvfs->odb_context,
+						    &h->odb_locking_key,
+						    NULL,
+						    &h->write_time.close_time);
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(0,("Unable get write time for '%s' - %s\n",
+					 h->name->full_name, nt_errstr(status)));
+			}
+
+			h->write_time.update_forced = false;
+			h->write_time.update_on_close = true;
+		} else if (h->write_time.update_on_close) {
+			status = odb_set_write_time(lck, h->write_time.close_time, true);
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(0,("Unable set write time for '%s' - %s\n",
+					 h->name->full_name, nt_errstr(status)));
+			}
+		}
+
+		status = odb_close_file(lck, h, &delete_path);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("Unable to remove opendb entry for '%s' - %s\n", 
+				 h->name->full_name, nt_errstr(status)));
+		}
+
+		if (h->name->stream_name == NULL &&
+		    h->open_completed && delete_path) {
+			status = pvfs_xattr_unlink_hook(h->pvfs, delete_path);
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(0,("Warning: xattr unlink hook failed for '%s' - %s\n",
+					 delete_path, nt_errstr(status)));
+			}
+			if (pvfs_sys_unlink(h->pvfs, delete_path, h->name->allow_override) != 0) {
+				DEBUG(0,("pvfs_close: failed to delete '%s' - %s\n",
+					 delete_path, strerror(errno)));
+			} else {
+				notify_trigger(h->pvfs->notify_context,
+					       NOTIFY_ACTION_REMOVED,
+					       FILE_NOTIFY_CHANGE_FILE_NAME,
+					       delete_path);
+			}
+			h->write_time.update_on_close = false;
+		}
+
+		talloc_free(lck);
+	}
+
+	if (h->write_time.update_on_close) {
+		struct timeval tv[2];
+
+		nttime_to_timeval(&tv[0], h->name->dos.access_time);
+		nttime_to_timeval(&tv[1], h->write_time.close_time);
+
+		if (!timeval_is_zero(&tv[0]) || !timeval_is_zero(&tv[1])) {
+			if (utimes(h->name->full_name, tv) == -1) {
+				DEBUG(3,("pvfs_handle_destructor: utimes() failed '%s' - %s\n",
+					 h->name->full_name, strerror(errno)));
+			}
+		}
+	}
+
+	return 0;
+}
+
+
+/*
+  destroy a struct pvfs_file
+*/
+static int pvfs_fnum_destructor(struct pvfs_file *f)
+{
+	DLIST_REMOVE(f->pvfs->files.list, f);
+	pvfs_lock_close(f->pvfs, f);
+	ntvfs_handle_remove_backend_data(f->ntvfs, f->pvfs->ntvfs);
+
+	return 0;
+}
+
+
+/*
+  form the lock context used for byte range locking. This is separate
+  from the locking key used for opendb locking as it needs to take
+  account of file streams (each stream is a separate byte range
+  locking space)
+*/
+static NTSTATUS pvfs_brl_locking_handle(TALLOC_CTX *mem_ctx,
+					struct pvfs_filename *name,
+					struct ntvfs_handle *ntvfs,
+					struct brl_handle **_h)
+{
+	DATA_BLOB odb_key, key;
+	NTSTATUS status;
+	struct brl_handle *h;
+
+	status = pvfs_locking_key(name, mem_ctx, &odb_key);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (name->stream_name == NULL) {
+		key = odb_key;
+	} else {
+		key = data_blob_talloc(mem_ctx, NULL, 
+				       odb_key.length + strlen(name->stream_name) + 1);
+		NT_STATUS_HAVE_NO_MEMORY(key.data);
+		memcpy(key.data, odb_key.data, odb_key.length);
+		memcpy(key.data + odb_key.length, 
+		       name->stream_name, strlen(name->stream_name) + 1);
+		data_blob_free(&odb_key);
+	}
+
+	h = brlock_create_handle(mem_ctx, ntvfs, &key);
+	NT_STATUS_HAVE_NO_MEMORY(h);
+
+	*_h = h;
+	return NT_STATUS_OK;
+}
+
+/*
+  create a new file
+*/
+static NTSTATUS pvfs_create_file(struct pvfs_state *pvfs, 
+				 struct ntvfs_request *req, 
+				 struct pvfs_filename *name, 
+				 union smb_open *io)
+{
+	struct pvfs_file *f;
+	NTSTATUS status;
+	struct ntvfs_handle *h;
+	int flags, fd;
+	struct odb_lock *lck;
+	uint32_t create_options = io->generic.in.create_options;
+	uint32_t share_access = io->generic.in.share_access;
+	uint32_t access_mask = io->generic.in.access_mask;
+	mode_t mode;
+	uint32_t attrib;
+	bool del_on_close;
+	struct pvfs_filename *parent;
+	uint32_t oplock_level = OPLOCK_NONE, oplock_granted;
+	bool allow_level_II_oplock = false;
+	struct security_descriptor *sd = NULL;
+
+	if (io->ntcreatex.in.file_attr & ~FILE_ATTRIBUTE_ALL_MASK) {
+		DEBUG(3,(__location__ ": Invalid file_attr 0x%08x for %s\n",
+			 io->ntcreatex.in.file_attr, name->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (io->ntcreatex.in.file_attr & FILE_ATTRIBUTE_ENCRYPTED) {
+		DEBUG(3,(__location__ ": Invalid encryption request for %s\n",
+			 name->original_name));
+		return NT_STATUS_ACCESS_DENIED;
+	}
+	    
+	if ((io->ntcreatex.in.file_attr & FILE_ATTRIBUTE_READONLY) &&
+	    (create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE)) {
+		DEBUG(4,(__location__ ": Invalid delete on close for readonly file %s\n",
+			 name->original_name));
+		return NT_STATUS_CANNOT_DELETE;
+	}
+
+	sd = io->ntcreatex.in.sec_desc;
+	status = pvfs_access_check_create(pvfs, req, name, &access_mask, false, &sd);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	/* check that the parent isn't opened with delete on close set */
+	status = pvfs_resolve_parent(pvfs, req, name, &parent);
+	if (NT_STATUS_IS_OK(status)) {
+		DATA_BLOB locking_key;
+		status = pvfs_locking_key(parent, req, &locking_key);
+		NT_STATUS_NOT_OK_RETURN(status);
+		status = odb_get_file_infos(pvfs->odb_context, &locking_key,
+					    &del_on_close, NULL);
+		NT_STATUS_NOT_OK_RETURN(status);
+		if (del_on_close) {
+			return NT_STATUS_DELETE_PENDING;
+		}
+	}
+
+	if (access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA)) {
+		flags = O_RDWR;
+	} else {
+		flags = O_RDONLY;
+	}
+
+	status = ntvfs_handle_new(pvfs->ntvfs, req, &h);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	f = talloc(h, struct pvfs_file);
+	NT_STATUS_HAVE_NO_MEMORY(f);
+
+	f->handle = talloc(f, struct pvfs_file_handle);
+	NT_STATUS_HAVE_NO_MEMORY(f->handle);
+
+	attrib = io->ntcreatex.in.file_attr | FILE_ATTRIBUTE_ARCHIVE;
+	mode = pvfs_fileperms(pvfs, attrib);
+
+	/* create the file */
+	fd = pvfs_sys_open(pvfs, name->full_name, flags | O_CREAT | O_EXCL| O_NONBLOCK, mode, name->allow_override);
+	if (fd == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	pvfs_xattr_unlink_hook(pvfs, name->full_name);
+
+	/* if this was a stream create then create the stream as well */
+	if (name->stream_name) {
+		status = pvfs_stream_create(pvfs, name, fd);
+		if (!NT_STATUS_IS_OK(status)) {
+			close(fd);
+			return status;
+		}
+	}
+
+	/* re-resolve the open fd */
+	status = pvfs_resolve_name_fd(pvfs, fd, name, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		close(fd);
+		return status;
+	}
+
+	/* support initial alloc sizes */
+	name->dos.alloc_size = io->ntcreatex.in.alloc_size;
+	name->dos.attrib = attrib;
+	status = pvfs_dosattrib_save(pvfs, name, fd);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+
+	status = pvfs_open_setup_eas_acl(pvfs, req, name, fd, f, io, sd);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+	if (io->generic.in.query_maximal_access) {
+		status = pvfs_access_maximal_allowed(pvfs, req, name, 
+						     &io->generic.out.maximal_access);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto cleanup_delete;
+		}
+	}
+
+	if (io->generic.in.query_on_disk_id) {
+		ZERO_ARRAY(io->generic.out.on_disk_id);
+		SBVAL(io->generic.out.on_disk_id, 0, name->st.st_ino);
+		SBVAL(io->generic.out.on_disk_id, 8, name->st.st_dev);
+	}
+
+	/* form the lock context used for byte range locking and
+	   opendb locking */
+	status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+	status = pvfs_brl_locking_handle(f, name, h, &f->brl_handle);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+	/* grab a lock on the open file record */
+	lck = odb_lock(req, pvfs->odb_context, &f->handle->odb_locking_key);
+	if (lck == NULL) {
+		DEBUG(0,("pvfs_open: failed to lock file '%s' in opendb\n",
+			 name->full_name));
+		/* we were supposed to do a blocking lock, so something
+		   is badly wrong! */
+		status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+		goto cleanup_delete;
+	}
+
+	if (create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE) {
+		del_on_close = true;
+	} else {
+		del_on_close = false;
+	}
+
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_level = OPLOCK_NONE;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_BATCH_OPLOCK) {
+		oplock_level = OPLOCK_BATCH;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_OPLOCK) {
+		oplock_level = OPLOCK_EXCLUSIVE;
+	}
+
+	if (req->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS) {
+		allow_level_II_oplock = true;
+	}
+
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, del_on_close,
+			      io->generic.in.open_disposition, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		/* bad news, we must have hit a race - we don't delete the file
+		   here as the most likely scenario is that someone else created
+		   the file at the same time */
+		close(fd);
+		return status;
+	}
+
+	f->ntvfs             = h;
+	f->pvfs              = pvfs;
+	f->pending_list      = NULL;
+	f->lock_count        = 0;
+	f->share_access      = io->generic.in.share_access;
+	f->access_mask       = access_mask;
+	f->impersonation     = io->generic.in.impersonation;
+	f->notify_buffer     = NULL;
+	f->search            = NULL;
+
+	f->handle->pvfs              = pvfs;
+	f->handle->name              = talloc_steal(f->handle, name);
+	f->handle->fd                = fd;
+	f->handle->create_options    = io->generic.in.create_options;
+	f->handle->private_flags     = io->generic.in.private_flags;
+	f->handle->seek_offset       = 0;
+	f->handle->position          = 0;
+	f->handle->mode              = 0;
+	f->handle->oplock            = NULL;
+	f->handle->have_opendb_entry = true;
+	ZERO_STRUCT(f->handle->write_time);
+	f->handle->open_completed    = false;
+
+	status = odb_open_file(lck, f->handle, name->full_name,
+			       &f->handle->fd, name->dos.write_time,
+			       allow_level_II_oplock,
+			       oplock_level, &oplock_granted);
+	talloc_free(lck);
+	if (!NT_STATUS_IS_OK(status)) {
+		/* bad news, we must have hit a race - we don't delete the file
+		   here as the most likely scenario is that someone else created
+		   the file at the same time */
+		close(fd);
+		return status;
+	}
+
+	DLIST_ADD(pvfs->files.list, f);
+
+	/* setup a destructor to avoid file descriptor leaks on
+	   abnormal termination */
+	talloc_set_destructor(f, pvfs_fnum_destructor);
+	talloc_set_destructor(f->handle, pvfs_handle_destructor);
+
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_granted = OPLOCK_BATCH;
+	} else if (oplock_granted != OPLOCK_NONE) {
+		status = pvfs_setup_oplock(f, oplock_granted);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	io->generic.out.oplock_level  = oplock_granted;
+	io->generic.out.file.ntvfs    = f->ntvfs;
+	io->generic.out.create_action = NTCREATEX_ACTION_CREATED;
+	io->generic.out.create_time   = name->dos.create_time;
+	io->generic.out.access_time   = name->dos.access_time;
+	io->generic.out.write_time    = name->dos.write_time;
+	io->generic.out.change_time   = name->dos.change_time;
+	io->generic.out.attrib        = name->dos.attrib;
+	io->generic.out.alloc_size    = name->dos.alloc_size;
+	io->generic.out.size          = name->st.st_size;
+	io->generic.out.file_type     = FILE_TYPE_DISK;
+	io->generic.out.ipc_state     = 0;
+	io->generic.out.is_directory  = 0;
+
+	/* success - keep the file handle */
+	status = ntvfs_handle_set_backend_data(h, pvfs->ntvfs, f);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto cleanup_delete;
+	}
+
+	f->handle->open_completed = true;
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_ADDED, 
+		       FILE_NOTIFY_CHANGE_FILE_NAME,
+		       name->full_name);
+
+	return NT_STATUS_OK;
+
+cleanup_delete:
+	close(fd);
+	pvfs_sys_unlink(pvfs, name->full_name, name->allow_override);
+	return status;
+}
+
+/*
+  state of a pending retry
+*/
+struct pvfs_odb_retry {
+	struct ntvfs_module_context *ntvfs;
+	struct ntvfs_request *req;
+	DATA_BLOB odb_locking_key;
+	void *io;
+	void *private_data;
+	void (*callback)(struct pvfs_odb_retry *r,
+			 struct ntvfs_module_context *ntvfs,
+			 struct ntvfs_request *req,
+			 void *io,
+			 void *private_data,
+			 enum pvfs_wait_notice reason);
+};
+
+/* destroy a pending request */
+static int pvfs_odb_retry_destructor(struct pvfs_odb_retry *r)
+{
+	struct pvfs_state *pvfs = talloc_get_type(r->ntvfs->private_data,
+				  struct pvfs_state);
+	if (r->odb_locking_key.data) {
+		struct odb_lock *lck;
+		lck = odb_lock(r->req, pvfs->odb_context, &r->odb_locking_key);
+		if (lck != NULL) {
+			odb_remove_pending(lck, r);
+		}
+		talloc_free(lck);
+	}
+	return 0;
+}
+
+static void pvfs_odb_retry_callback(void *_r, enum pvfs_wait_notice reason)
+{
+	struct pvfs_odb_retry *r = talloc_get_type(_r, struct pvfs_odb_retry);
+
+	if (reason == PVFS_WAIT_EVENT) {
+		/*
+		 * The pending odb entry is already removed.
+		 * We use a null locking key to indicate this
+		 * to the destructor.
+		 */
+		data_blob_free(&r->odb_locking_key);
+	}
+
+	r->callback(r, r->ntvfs, r->req, r->io, r->private_data, reason);
+}
+
+/*
+  setup for a retry of a request that was rejected
+  by odb_can_open()
+*/
+NTSTATUS pvfs_odb_retry_setup(struct ntvfs_module_context *ntvfs,
+			      struct ntvfs_request *req,
+			      struct odb_lock *lck,
+			      struct timeval end_time,
+			      void *io,
+			      void *private_data,
+			      void (*callback)(struct pvfs_odb_retry *r,
+					       struct ntvfs_module_context *ntvfs,
+					       struct ntvfs_request *req,
+					       void *io,
+					       void *private_data,
+					       enum pvfs_wait_notice reason))
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_odb_retry *r;
+	struct pvfs_wait *wait_handle;
+	NTSTATUS status;
+
+	r = talloc(req, struct pvfs_odb_retry);
+	NT_STATUS_HAVE_NO_MEMORY(r);
+
+	r->ntvfs = ntvfs;
+	r->req = req;
+	r->io = io;
+	r->private_data = private_data;
+	r->callback = callback;
+	r->odb_locking_key = odb_get_key(r, lck);
+	if (r->odb_locking_key.data == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* setup a pending lock */
+	status = odb_open_file_pending(lck, r);
+	if (NT_STATUS_EQUAL(NT_STATUS_OBJECT_NAME_NOT_FOUND,status)) {
+		/*
+		 * maybe only a unix application
+		 * has the file open
+		 */
+		data_blob_free(&r->odb_locking_key);
+	} else if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	talloc_free(lck);
+
+	talloc_set_destructor(r, pvfs_odb_retry_destructor);
+
+	wait_handle = pvfs_wait_message(pvfs, req,
+					MSG_PVFS_RETRY_OPEN, end_time,
+					pvfs_odb_retry_callback, r);
+	if (wait_handle == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	talloc_steal(r, wait_handle);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  retry an open after a sharing violation
+*/
+static void pvfs_retry_open_sharing(struct pvfs_odb_retry *r,
+				    struct ntvfs_module_context *ntvfs,
+				    struct ntvfs_request *req,
+				    void *_io,
+				    void *private_data,
+				    enum pvfs_wait_notice reason)
+{
+	union smb_open *io = talloc_get_type(_io, union smb_open);
+	struct timeval *final_timeout = NULL;
+	NTSTATUS status;
+
+	if (private_data) {
+		final_timeout = talloc_get_type(private_data,
+						struct timeval);
+	}
+
+	/* w2k3 ignores SMBntcancel for outstanding open requests. It's probably
+	   just a bug in their server, but we better do the same */
+	if (reason == PVFS_WAIT_CANCEL) {
+		return;
+	}
+
+	if (reason == PVFS_WAIT_TIMEOUT) {
+		if (final_timeout &&
+		    !timeval_expired(final_timeout)) {
+			/*
+			 * we need to retry periodictly
+			 * after an EAGAIN as there's
+			 * no way the kernel tell us
+			 * an oplock is released.
+			 */
+			goto retry;
+		}
+		/* if it timed out, then give the failure
+		   immediately */
+		talloc_free(r);
+		req->async_states->status = NT_STATUS_SHARING_VIOLATION;
+		req->async_states->send_fn(req);
+		return;
+	}
+
+retry:
+	talloc_free(r);
+
+	/* try the open again, which could trigger another retry setup
+	   if it wants to, so we have to unmark the async flag so we
+	   will know if it does a second async reply */
+	req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC;
+
+	status = pvfs_open(ntvfs, req, io);
+	if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) {
+		/* the 2nd try also replied async, so we don't send
+		   the reply yet */
+		return;
+	}
+
+	/* re-mark it async, just in case someone up the chain does
+	   paranoid checking */
+	req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+
+	/* send the reply up the chain */
+	req->async_states->status = status;
+	req->async_states->send_fn(req);
+}
+
+
+/*
+  special handling for openx DENY_DOS semantics
+
+  This function attempts a reference open using an existing handle. If its allowed,
+  then it returns NT_STATUS_OK, otherwise it returns any other code and normal
+  open processing continues.
+*/
+static NTSTATUS pvfs_open_deny_dos(struct ntvfs_module_context *ntvfs,
+				   struct ntvfs_request *req, union smb_open *io,
+				   struct pvfs_file *f, struct odb_lock *lck)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f2;
+	struct pvfs_filename *name;
+	NTSTATUS status;
+
+	/* search for an existing open with the right parameters. Note
+	   the magic ntcreatex options flag, which is set in the
+	   generic mapping code. This might look ugly, but its
+	   actually pretty much now w2k does it internally as well. 
+	   
+	   If you look at the BASE-DENYDOS test you will see that a
+	   DENY_DOS is a very special case, and in the right
+	   circumstances you actually get the _same_ handle back
+	   twice, rather than a new handle.
+	*/
+	for (f2=pvfs->files.list;f2;f2=f2->next) {
+		if (f2 != f &&
+		    f2->ntvfs->session_info == req->session_info &&
+		    f2->ntvfs->smbpid == req->smbpid &&
+		    (f2->handle->private_flags &
+		     (NTCREATEX_FLAG_DENY_DOS |
+		      NTCREATEX_FLAG_DENY_FCB)) &&
+		    (f2->access_mask & SEC_FILE_WRITE_DATA) &&
+		    strcasecmp_m(f2->handle->name->original_name, 
+			       io->generic.in.fname)==0) {
+			break;
+		}
+	}
+
+	if (!f2) {
+		return NT_STATUS_SHARING_VIOLATION;
+	}
+
+	/* quite an insane set of semantics ... */
+	if (is_exe_filename(io->generic.in.fname) &&
+	    (f2->handle->private_flags & NTCREATEX_FLAG_DENY_DOS)) {
+		return NT_STATUS_SHARING_VIOLATION;
+	}
+
+	/*
+	  setup a reference to the existing handle
+	 */
+	talloc_free(f->handle);
+	f->handle = talloc_reference(f, f2->handle);
+
+	talloc_free(lck);
+
+	name = f->handle->name;
+
+	io->generic.out.oplock_level  = OPLOCK_NONE;
+	io->generic.out.file.ntvfs    = f->ntvfs;
+	io->generic.out.create_action = NTCREATEX_ACTION_EXISTED;
+	io->generic.out.create_time   = name->dos.create_time;
+	io->generic.out.access_time   = name->dos.access_time;
+	io->generic.out.write_time    = name->dos.write_time;
+	io->generic.out.change_time   = name->dos.change_time;
+	io->generic.out.attrib        = name->dos.attrib;
+	io->generic.out.alloc_size    = name->dos.alloc_size;
+	io->generic.out.size          = name->st.st_size;
+	io->generic.out.file_type     = FILE_TYPE_DISK;
+	io->generic.out.ipc_state     = 0;
+	io->generic.out.is_directory  = 0;
+ 
+	status = ntvfs_handle_set_backend_data(f->ntvfs, ntvfs, f);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	return NT_STATUS_OK;
+}
+
+
+
+/*
+  setup for a open retry after a sharing violation
+*/
+static NTSTATUS pvfs_open_setup_retry(struct ntvfs_module_context *ntvfs,
+				      struct ntvfs_request *req, 
+				      union smb_open *io,
+				      struct pvfs_file *f,
+				      struct odb_lock *lck,
+				      NTSTATUS parent_status)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct timeval end_time;
+	struct timeval *final_timeout = NULL;
+
+	if (io->generic.in.private_flags &
+	    (NTCREATEX_FLAG_DENY_DOS | NTCREATEX_FLAG_DENY_FCB)) {
+		/* see if we can satisfy the request using the special DENY_DOS
+		   code */
+		status = pvfs_open_deny_dos(ntvfs, req, io, f, lck);
+		if (NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	/* the retry should allocate a new file handle */
+	talloc_free(f);
+
+	if (NT_STATUS_EQUAL(parent_status, NT_STATUS_SHARING_VIOLATION)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       0, pvfs->sharing_violation_delay);
+	} else if (NT_STATUS_EQUAL(parent_status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       pvfs->oplock_break_timeout, 0);
+	} else if (NT_STATUS_EQUAL(parent_status, STATUS_MORE_ENTRIES)) {
+		/*
+		 * we got EAGAIN which means a unix application
+		 * has an oplock or share mode
+		 *
+		 * we retry every 4/5 of the sharing violation delay
+		 * to see if the unix application
+		 * has released the oplock or share mode.
+		 */
+		final_timeout = talloc(req, struct timeval);
+		NT_STATUS_HAVE_NO_MEMORY(final_timeout);
+		*final_timeout = timeval_add(&req->statistics.request_time,
+					     pvfs->oplock_break_timeout,
+					     0);
+		end_time = timeval_current_ofs_usec((pvfs->sharing_violation_delay*4)/5);
+		end_time = timeval_min(final_timeout, &end_time);
+	} else {
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, io,
+				    final_timeout, pvfs_retry_open_sharing);
+}
+
+/*
+  open a file
+*/
+NTSTATUS pvfs_open(struct ntvfs_module_context *ntvfs,
+		   struct ntvfs_request *req, union smb_open *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	int flags = 0;
+	struct pvfs_filename *name;
+	struct pvfs_file *f;
+	struct ntvfs_handle *h;
+	NTSTATUS status;
+	int fd, count;
+	struct odb_lock *lck;
+	uint32_t create_options;
+	uint32_t create_options_must_ignore_mask;
+	uint32_t share_access;
+	uint32_t access_mask;
+	uint32_t create_action = NTCREATEX_ACTION_EXISTED;
+	bool del_on_close;
+	bool stream_existed, stream_truncate=false;
+	uint32_t oplock_level = OPLOCK_NONE, oplock_granted;
+	bool allow_level_II_oplock = false;
+
+	/* use the generic mapping code to avoid implementing all the
+	   different open calls. */
+	if (io->generic.level != RAW_OPEN_GENERIC &&
+	    io->generic.level != RAW_OPEN_NTTRANS_CREATE) {
+		return ntvfs_map_open(ntvfs, req, io);
+	}
+
+	ZERO_STRUCT(io->generic.out);
+
+	create_options = io->generic.in.create_options;
+	share_access   = io->generic.in.share_access;
+	access_mask    = io->generic.in.access_mask;
+
+	if (share_access & ~NTCREATEX_SHARE_ACCESS_MASK) {
+		DEBUG(3,(__location__ ": Invalid share_access 0x%08x for %s\n",
+			 share_access, io->ntcreatex.in.fname));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/*
+	 * These options are ignored,
+	 * but we reuse some of them as private values for the generic mapping
+	 */
+	create_options_must_ignore_mask = NTCREATEX_OPTIONS_MUST_IGNORE_MASK;
+	create_options &= ~create_options_must_ignore_mask;
+
+	if (create_options & NTCREATEX_OPTIONS_NOT_SUPPORTED_MASK) {
+		DEBUG(2,(__location__ " create_options 0x%x not supported\n", 
+			 create_options));
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	if (create_options & NTCREATEX_OPTIONS_INVALID_PARAM_MASK) {
+		DEBUG(3,(__location__ ": Invalid create_options 0x%08x for %s\n",
+			 create_options, io->ntcreatex.in.fname));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* TODO: When we implement HSM, add a hook here not to pull
+	 * the actual file off tape, when this option is passed from
+	 * the client */
+	if (create_options & NTCREATEX_OPTIONS_NO_RECALL) {
+		/* no-op */
+	}
+
+	/* TODO: If (unlikely) Linux does a good compressed
+	 * filesystem, we might need an ioctl call for this */
+	if (create_options & NTCREATEX_OPTIONS_NO_COMPRESSION) {
+		/* no-op */
+	}
+
+	if (create_options & NTCREATEX_OPTIONS_NO_INTERMEDIATE_BUFFERING) {
+		create_options |= NTCREATEX_OPTIONS_WRITE_THROUGH;
+	}
+
+	/* Open the file with sync, if they asked for it, but
+	   'strict sync = no' turns this client request into a no-op */
+	if (create_options & (NTCREATEX_OPTIONS_WRITE_THROUGH) && !(pvfs->flags | PVFS_FLAG_STRICT_SYNC)) {
+		flags |= O_SYNC;
+	}
+
+
+	/* other create options are not allowed */
+	if ((create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE) &&
+	    !(access_mask & SEC_STD_DELETE)) {
+		DEBUG(3,(__location__ ": Invalid delete_on_close option 0x%08x with access_mask 0x%08x for %s\n",
+			 create_options, access_mask, io->ntcreatex.in.fname));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (access_mask & SEC_MASK_INVALID) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	/* what does this bit really mean?? */
+	if (req->ctx->protocol >= PROTOCOL_SMB2_02 &&
+	    access_mask == SEC_STD_SYNCHRONIZE) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	/* cope with non-zero root_fid */
+	if (io->ntcreatex.in.root_fid.ntvfs != NULL) {
+		f = pvfs_find_fd(pvfs, req, io->ntcreatex.in.root_fid.ntvfs);
+		if (f == NULL) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+		if (f->handle->fd != -1) {
+			return NT_STATUS_INVALID_DEVICE_REQUEST;
+		}
+		io->ntcreatex.in.fname = talloc_asprintf(req, "%s\\%s", 
+							 f->handle->name->original_name,
+							 io->ntcreatex.in.fname);
+		NT_STATUS_HAVE_NO_MEMORY(io->ntcreatex.in.fname);			
+	}
+
+	if (io->ntcreatex.in.file_attr & (FILE_ATTRIBUTE_DEVICE|
+					  FILE_ATTRIBUTE_VOLUME| 
+					  (~FILE_ATTRIBUTE_ALL_MASK))) {
+		DEBUG(3,(__location__ ": Invalid file_attr 0x%08x for %s\n",
+			 io->ntcreatex.in.file_attr, io->ntcreatex.in.fname));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* we ignore some file_attr bits */
+	io->ntcreatex.in.file_attr &= ~(FILE_ATTRIBUTE_NONINDEXED | 
+					FILE_ATTRIBUTE_COMPRESSED |
+					FILE_ATTRIBUTE_REPARSE_POINT |
+					FILE_ATTRIBUTE_SPARSE |
+					FILE_ATTRIBUTE_NORMAL);
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, io->ntcreatex.in.fname, 
+				   PVFS_RESOLVE_STREAMS, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* if the client specified that it must not be a directory then
+	   check that it isn't */
+	if (name->exists && (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+	    (io->generic.in.create_options & NTCREATEX_OPTIONS_NON_DIRECTORY_FILE)) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	/* if the client specified that it must be a directory then
+	   check that it is */
+	if (name->exists && !(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+	    (io->generic.in.create_options & NTCREATEX_OPTIONS_DIRECTORY)) {
+		return NT_STATUS_NOT_A_DIRECTORY;
+	}
+
+	/* directory opens are handled separately */
+	if ((name->exists && (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) ||
+	    (io->generic.in.create_options & NTCREATEX_OPTIONS_DIRECTORY)) {
+		return pvfs_open_directory(pvfs, req, name, io);
+	}
+
+	/* FILE_ATTRIBUTE_DIRECTORY is ignored if the above test for directory
+	   open doesn't match */
+	io->generic.in.file_attr &= ~FILE_ATTRIBUTE_DIRECTORY;
+
+	switch (io->generic.in.open_disposition) {
+	case NTCREATEX_DISP_SUPERSEDE:
+	case NTCREATEX_DISP_OVERWRITE_IF:
+		if (name->stream_name == NULL) {
+			flags = O_TRUNC;
+		} else {
+			stream_truncate = true;
+		}
+		create_action = NTCREATEX_ACTION_TRUNCATED;
+		break;
+
+	case NTCREATEX_DISP_OPEN:
+		if (!name->stream_exists) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+		flags = 0;
+		break;
+
+	case NTCREATEX_DISP_OVERWRITE:
+		if (!name->stream_exists) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+		if (name->stream_name == NULL) {
+			flags = O_TRUNC;
+		} else {
+			stream_truncate = true;
+		}
+		create_action = NTCREATEX_ACTION_TRUNCATED;
+		break;
+
+	case NTCREATEX_DISP_CREATE:
+		if (name->stream_exists) {
+			return NT_STATUS_OBJECT_NAME_COLLISION;
+		}
+		flags = 0;
+		break;
+
+	case NTCREATEX_DISP_OPEN_IF:
+		flags = 0;
+		break;
+
+	default:
+		DEBUG(3,(__location__ ": Invalid open disposition 0x%08x for %s\n",
+			 io->generic.in.open_disposition, name->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* handle creating a new file separately */
+	if (!name->exists) {
+		status = pvfs_create_file(pvfs, req, name, io);
+		if (!NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_COLLISION)) {
+			return status;
+		}
+
+		/* we've hit a race - the file was created during this call */
+		if (io->generic.in.open_disposition == NTCREATEX_DISP_CREATE) {
+			return status;
+		}
+
+		/* try re-resolving the name */
+		status = pvfs_resolve_name(pvfs, req, io->ntcreatex.in.fname, 0, &name);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+		/* fall through to a normal open */
+	}
+
+	if ((name->dos.attrib & FILE_ATTRIBUTE_READONLY) &&
+	    (create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE)) {
+		return NT_STATUS_CANNOT_DELETE;
+	}
+
+	/* check the security descriptor */
+	status = pvfs_access_check(pvfs, req, name, &access_mask);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (io->generic.in.query_maximal_access) {
+		status = pvfs_access_maximal_allowed(pvfs, req, name, 
+						     &io->generic.out.maximal_access);
+		NT_STATUS_NOT_OK_RETURN(status);
+	}
+
+	if (io->generic.in.query_on_disk_id) {
+		ZERO_ARRAY(io->generic.out.on_disk_id);
+		SBVAL(io->generic.out.on_disk_id, 0, name->st.st_ino);
+		SBVAL(io->generic.out.on_disk_id, 8, name->st.st_dev);
+	}
+
+	status = ntvfs_handle_new(pvfs->ntvfs, req, &h);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	f = talloc(h, struct pvfs_file);
+	if (f == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	f->handle = talloc(f, struct pvfs_file_handle);
+	if (f->handle == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	f->ntvfs         = h;
+	f->pvfs          = pvfs;
+	f->pending_list  = NULL;
+	f->lock_count    = 0;
+	f->share_access  = io->generic.in.share_access;
+	f->access_mask   = access_mask;
+	f->impersonation = io->generic.in.impersonation;
+	f->notify_buffer = NULL;
+	f->search        = NULL;
+
+	f->handle->pvfs              = pvfs;
+	f->handle->fd                = -1;
+	f->handle->name              = talloc_steal(f->handle, name);
+	f->handle->create_options    = io->generic.in.create_options;
+	f->handle->private_flags     = io->generic.in.private_flags;
+	f->handle->seek_offset       = 0;
+	f->handle->position          = 0;
+	f->handle->mode              = 0;
+	f->handle->oplock            = NULL;
+	f->handle->have_opendb_entry = false;
+	ZERO_STRUCT(f->handle->write_time);
+	f->handle->open_completed    = false;
+
+	/* form the lock context used for byte range locking and
+	   opendb locking */
+	status = pvfs_locking_key(name, f->handle, &f->handle->odb_locking_key);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_brl_locking_handle(f, name, h, &f->brl_handle);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* get a lock on this file before the actual open */
+	lck = odb_lock(req, pvfs->odb_context, &f->handle->odb_locking_key);
+	if (lck == NULL) {
+		DEBUG(0,("pvfs_open: failed to lock file '%s' in opendb\n",
+			 name->full_name));
+		/* we were supposed to do a blocking lock, so something
+		   is badly wrong! */
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	DLIST_ADD(pvfs->files.list, f);
+
+	/* setup a destructor to avoid file descriptor leaks on
+	   abnormal termination */
+	talloc_set_destructor(f, pvfs_fnum_destructor);
+	talloc_set_destructor(f->handle, pvfs_handle_destructor);
+
+	/* 
+	 * Only SMB2 takes care of the delete_on_close,
+	 * on existing files
+	 */
+	if (create_options & NTCREATEX_OPTIONS_DELETE_ON_CLOSE &&
+	    req->ctx->protocol >= PROTOCOL_SMB2_02) {
+		del_on_close = true;
+	} else {
+		del_on_close = false;
+	}
+
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_level = OPLOCK_NONE;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_BATCH_OPLOCK) {
+		oplock_level = OPLOCK_BATCH;
+	} else if (io->ntcreatex.in.flags & NTCREATEX_FLAGS_REQUEST_OPLOCK) {
+		oplock_level = OPLOCK_EXCLUSIVE;
+	}
+
+	if (req->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS) {
+		allow_level_II_oplock = true;
+	}
+
+	/* see if we are allowed to open at the same time as existing opens */
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, del_on_close,
+			      io->generic.in.open_disposition, false);
+
+	/*
+	 * on a sharing violation we need to retry when the file is closed by
+	 * the other user, or after 1 second
+	 * on a non granted oplock we need to retry when the file is closed by
+	 * the other user, or after 30 seconds
+	*/
+	if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return pvfs_open_setup_retry(ntvfs, req, io, f, lck, status);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		return status;
+	}
+
+	if (access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA)) {
+		flags |= O_RDWR;
+	} else {
+		flags |= O_RDONLY;
+	}
+
+	/* do the actual open */
+	fd = pvfs_sys_open(pvfs, f->handle->name->full_name, flags | O_NONBLOCK, 0, name->allow_override);
+	if (fd == -1) {
+		status = pvfs_map_errno(f->pvfs, errno);
+
+		DEBUG(0,(__location__ " mapped errno %s for %s (was %d)\n", 
+			 nt_errstr(status), f->handle->name->full_name, errno));
+		/*
+		 * STATUS_MORE_ENTRIES is EAGAIN or EWOULDBLOCK
+		 */
+		if (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES) &&
+		    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+			return pvfs_open_setup_retry(ntvfs, req, io, f, lck, status);
+		}
+
+		talloc_free(lck);
+		return status;
+	}
+
+	f->handle->fd = fd;
+
+	status = brlock_count(f->pvfs->brl_context, f->brl_handle, &count);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		return status;
+	}
+
+	if (count != 0) {
+		oplock_level = OPLOCK_NONE;
+	}
+
+	/* now really mark the file as open */
+	status = odb_open_file(lck, f->handle, name->full_name,
+			       &f->handle->fd, name->dos.write_time,
+			       allow_level_II_oplock,
+			       oplock_level, &oplock_granted);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		return status;
+	}
+
+	f->handle->have_opendb_entry = true;
+
+	if (pvfs->flags & PVFS_FLAG_FAKE_OPLOCKS) {
+		oplock_granted = OPLOCK_BATCH;
+	} else if (oplock_granted != OPLOCK_NONE) {
+		status = pvfs_setup_oplock(f, oplock_granted);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(lck);
+			return status;
+		}
+	}
+
+	stream_existed = name->stream_exists;
+
+	/* if this was a stream create then create the stream as well */
+	if (!name->stream_exists) {
+		status = pvfs_stream_create(pvfs, f->handle->name, fd);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(lck);
+			return status;
+		}
+		if (stream_truncate) {
+			status = pvfs_stream_truncate(pvfs, f->handle->name, fd, 0);
+			if (!NT_STATUS_IS_OK(status)) {
+				talloc_free(lck);
+				return status;
+			}
+		}
+	}
+
+	/* re-resolve the open fd */
+	status = pvfs_resolve_name_fd(f->pvfs, fd, f->handle->name, PVFS_RESOLVE_NO_OPENDB);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		return status;
+	}
+
+	if (f->handle->name->stream_id == 0 &&
+	    (io->generic.in.open_disposition == NTCREATEX_DISP_OVERWRITE ||
+	     io->generic.in.open_disposition == NTCREATEX_DISP_OVERWRITE_IF)) {
+		/* for overwrite we may need to replace file permissions */
+		uint32_t attrib = io->ntcreatex.in.file_attr | FILE_ATTRIBUTE_ARCHIVE;
+		mode_t mode = pvfs_fileperms(pvfs, attrib);
+		if (f->handle->name->st.st_mode != mode &&
+		    f->handle->name->dos.attrib != attrib &&
+		    pvfs_sys_fchmod(pvfs, fd, mode, name->allow_override) == -1) {
+			talloc_free(lck);
+			return pvfs_map_errno(pvfs, errno);
+		}
+		name->dos.alloc_size = io->ntcreatex.in.alloc_size;
+		name->dos.attrib = attrib;
+		status = pvfs_dosattrib_save(pvfs, name, fd);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(lck);
+			return status;
+		}
+	}
+	    
+	talloc_free(lck);
+
+	status = ntvfs_handle_set_backend_data(h, ntvfs, f);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	/* mark the open as having completed fully, so delete on close
+	   can now be used */
+	f->handle->open_completed     = true;
+
+	io->generic.out.oplock_level  = oplock_granted;
+	io->generic.out.file.ntvfs    = h;
+	io->generic.out.create_action = stream_existed?
+		create_action:NTCREATEX_ACTION_CREATED;
+	
+	io->generic.out.create_time   = name->dos.create_time;
+	io->generic.out.access_time   = name->dos.access_time;
+	io->generic.out.write_time    = name->dos.write_time;
+	io->generic.out.change_time   = name->dos.change_time;
+	io->generic.out.attrib        = name->dos.attrib;
+	io->generic.out.alloc_size    = name->dos.alloc_size;
+	io->generic.out.size          = name->st.st_size;
+	io->generic.out.file_type     = FILE_TYPE_DISK;
+	io->generic.out.ipc_state     = 0;
+	io->generic.out.is_directory  = 0;
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  close a file
+*/
+NTSTATUS pvfs_close(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req, union smb_close *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+
+	if (io->generic.level == RAW_CLOSE_SPLCLOSE) {
+		return NT_STATUS_DOS(ERRSRV, ERRerror);
+	}
+
+	if (io->generic.level != RAW_CLOSE_GENERIC) {
+		return ntvfs_map_close(ntvfs, req, io);
+	}
+
+	f = pvfs_find_fd(pvfs, req, io->generic.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	if (!null_time(io->generic.in.write_time)) {
+		f->handle->write_time.update_forced = false;
+		f->handle->write_time.update_on_close = true;
+		unix_to_nt_time(&f->handle->write_time.close_time, io->generic.in.write_time);
+	}
+
+	if (io->generic.in.flags & SMB2_CLOSE_FLAGS_FULL_INFORMATION) {
+		struct pvfs_filename *name;
+		NTSTATUS status;
+		struct pvfs_file_handle *h = f->handle;
+
+		status = pvfs_resolve_name_handle(pvfs, h);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+		name = h->name;
+
+		io->generic.out.flags = SMB2_CLOSE_FLAGS_FULL_INFORMATION;
+		io->generic.out.create_time = name->dos.create_time;
+		io->generic.out.access_time = name->dos.access_time;
+		io->generic.out.write_time  = name->dos.write_time;
+		io->generic.out.change_time = name->dos.change_time;
+		io->generic.out.alloc_size  = name->dos.alloc_size;
+		io->generic.out.size        = name->st.st_size;
+		io->generic.out.file_attr   = name->dos.attrib;		
+	} else {
+		ZERO_STRUCT(io->generic.out);
+	}
+
+	talloc_free(f);
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  logoff - close all file descriptors open by a vuid
+*/
+NTSTATUS pvfs_logoff(struct ntvfs_module_context *ntvfs,
+		     struct ntvfs_request *req)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f, *next;
+
+	/* If pvfs is NULL, we never logged on, and no files are open. */
+	if(pvfs == NULL) {
+		return NT_STATUS_OK;
+	}
+
+	for (f=pvfs->files.list;f;f=next) {
+		next = f->next;
+		if (f->ntvfs->session_info == req->session_info) {
+			talloc_free(f);
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  exit - close files for the current pid
+*/
+NTSTATUS pvfs_exit(struct ntvfs_module_context *ntvfs,
+		   struct ntvfs_request *req)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f, *next;
+
+	for (f=pvfs->files.list;f;f=next) {
+		next = f->next;
+		if (f->ntvfs->session_info == req->session_info &&
+		    f->ntvfs->smbpid == req->smbpid) {
+			talloc_free(f);
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  change the delete on close flag on an already open file
+*/
+NTSTATUS pvfs_set_delete_on_close(struct pvfs_state *pvfs,
+				  struct ntvfs_request *req, 
+				  struct pvfs_file *f, bool del_on_close)
+{
+	struct odb_lock *lck;
+	NTSTATUS status;
+
+	if ((f->handle->name->dos.attrib & FILE_ATTRIBUTE_READONLY) && del_on_close) {
+		return NT_STATUS_CANNOT_DELETE;
+	}
+	
+	if ((f->handle->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+	    !pvfs_directory_empty(pvfs, f->handle->name)) {
+		return NT_STATUS_DIRECTORY_NOT_EMPTY;
+	}
+
+	if (del_on_close) {
+		f->handle->create_options |= NTCREATEX_OPTIONS_DELETE_ON_CLOSE;
+	} else {
+		f->handle->create_options &= ~NTCREATEX_OPTIONS_DELETE_ON_CLOSE;
+	}
+	
+	lck = odb_lock(req, pvfs->odb_context, &f->handle->odb_locking_key);
+	if (lck == NULL) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	status = odb_set_delete_on_close(lck, del_on_close);
+
+	talloc_free(lck);
+
+	return status;
+}
+
+
+/*
+  determine if a file can be deleted, or if it is prevented by an
+  already open file
+*/
+NTSTATUS pvfs_can_delete(struct pvfs_state *pvfs, 
+			 struct ntvfs_request *req,
+			 struct pvfs_filename *name,
+			 struct odb_lock **lckp)
+{
+	NTSTATUS status;
+	DATA_BLOB key;
+	struct odb_lock *lck;
+	uint32_t share_access;
+	uint32_t access_mask;
+	bool delete_on_close;
+
+	status = pvfs_locking_key(name, name, &key);
+	if (!NT_STATUS_IS_OK(status)) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, &key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_delete\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	share_access	= NTCREATEX_SHARE_ACCESS_READ |
+			  NTCREATEX_SHARE_ACCESS_WRITE |
+			  NTCREATEX_SHARE_ACCESS_DELETE;
+	access_mask	= SEC_STD_DELETE;
+	delete_on_close	= true;
+
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, delete_on_close,
+			      NTCREATEX_DISP_OPEN, false);
+
+	if (NT_STATUS_IS_OK(status)) {
+		status = pvfs_access_check_simple(pvfs, req, name, access_mask);
+	}
+
+	/*
+	 * if it's a sharing violation or we got no oplock
+	 * only keep the lock if the caller requested access
+	 * to the lock
+	 */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		if (lckp) {
+			*lckp = lck;
+		} else {
+			talloc_free(lck);
+		}
+	} else if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		if (lckp) {
+			*lckp = NULL;
+		}
+	} else if (lckp) {
+		*lckp = lck;
+	}
+
+	return status;
+}
+
+/*
+  determine if a file can be renamed, or if it is prevented by an
+  already open file
+*/
+NTSTATUS pvfs_can_rename(struct pvfs_state *pvfs, 
+			 struct ntvfs_request *req,
+			 struct pvfs_filename *name,
+			 struct odb_lock **lckp)
+{
+	NTSTATUS status;
+	DATA_BLOB key;
+	struct odb_lock *lck;
+	uint32_t share_access;
+	uint32_t access_mask;
+	bool delete_on_close;
+
+	status = pvfs_locking_key(name, name, &key);
+	if (!NT_STATUS_IS_OK(status)) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, &key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_stat\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	share_access	= NTCREATEX_SHARE_ACCESS_READ |
+			  NTCREATEX_SHARE_ACCESS_WRITE;
+	access_mask	= SEC_STD_DELETE;
+	delete_on_close	= false;
+
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, delete_on_close,
+			      NTCREATEX_DISP_OPEN, false);
+
+	/*
+	 * if it's a sharing violation or we got no oplock
+	 * only keep the lock if the caller requested access
+	 * to the lock
+	 */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		if (lckp) {
+			*lckp = lck;
+		} else {
+			talloc_free(lck);
+		}
+	} else if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		if (lckp) {
+			*lckp = NULL;
+		}
+	} else if (lckp) {
+		*lckp = lck;
+	}
+
+	return status;
+}
+
+/*
+  determine if the file size of a file can be changed,
+  or if it is prevented by an already open file
+*/
+NTSTATUS pvfs_can_update_file_size(struct pvfs_state *pvfs,
+				   struct ntvfs_request *req,
+				   struct pvfs_filename *name,
+				   struct odb_lock **lckp)
+{
+	NTSTATUS status;
+	DATA_BLOB key;
+	struct odb_lock *lck;
+	uint32_t share_access;
+	uint32_t access_mask;
+	bool break_to_none;
+	bool delete_on_close;
+
+	status = pvfs_locking_key(name, name, &key);
+	if (!NT_STATUS_IS_OK(status)) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, &key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_stat\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	share_access	= NTCREATEX_SHARE_ACCESS_READ |
+			  NTCREATEX_SHARE_ACCESS_WRITE |
+			  NTCREATEX_SHARE_ACCESS_DELETE;
+	/*
+	 * this code previous set only SEC_FILE_WRITE_ATTRIBUTE, with
+	 * a comment that this seemed to be wrong, but matched windows
+	 * behaviour. It now appears that this windows behaviour is
+	 * just a bug.
+	 */
+	access_mask	= SEC_FILE_WRITE_ATTRIBUTE | SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA;
+	delete_on_close	= false;
+	break_to_none	= true;
+
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, delete_on_close,
+			      NTCREATEX_DISP_OPEN, break_to_none);
+
+	/*
+	 * if it's a sharing violation or we got no oplock
+	 * only keep the lock if the caller requested access
+	 * to the lock
+	 */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		if (lckp) {
+			*lckp = lck;
+		} else {
+			talloc_free(lck);
+		}
+	} else if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		if (lckp) {
+			*lckp = NULL;
+		}
+	} else if (lckp) {
+		*lckp = lck;
+	}
+
+	return status;
+}
+
+/*
+  determine if file meta data can be accessed, or if it is prevented by an
+  already open file
+*/
+NTSTATUS pvfs_can_stat(struct pvfs_state *pvfs, 
+		       struct ntvfs_request *req,
+		       struct pvfs_filename *name)
+{
+	NTSTATUS status;
+	DATA_BLOB key;
+	struct odb_lock *lck;
+	uint32_t share_access;
+	uint32_t access_mask;
+	bool delete_on_close;
+
+	status = pvfs_locking_key(name, name, &key);
+	if (!NT_STATUS_IS_OK(status)) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, &key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_stat\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	share_access	= NTCREATEX_SHARE_ACCESS_READ |
+			  NTCREATEX_SHARE_ACCESS_WRITE;
+	access_mask	= SEC_FILE_READ_ATTRIBUTE;
+	delete_on_close	= false;
+
+	status = odb_can_open(lck, name->stream_id,
+			      share_access, access_mask, delete_on_close,
+			      NTCREATEX_DISP_OPEN, false);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+	}
+
+	return status;
+}
+
+
+/*
+  determine if delete on close is set on 
+*/
+bool pvfs_delete_on_close_set(struct pvfs_state *pvfs, struct pvfs_file_handle *h)
+{
+	NTSTATUS status;
+	bool del_on_close;
+
+	status = odb_get_file_infos(pvfs->odb_context, &h->odb_locking_key, 
+				    &del_on_close, NULL);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(1,("WARNING: unable to determine delete on close status for open file\n"));
+		return false;
+	}
+
+	return del_on_close;
+}
diff --git a/source4/ntvfs/posix/pvfs_oplock.c b/source4/ntvfs/posix/pvfs_oplock.c
new file mode 100644
index 0000000..ba5d25d
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_oplock.c
@@ -0,0 +1,307 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - oplock handling
+
+   Copyright (C) Stefan Metzmacher 2008
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/messaging/messaging.h"
+#include "lib/messaging/irpc.h"
+#include "system/time.h"
+#include "vfs_posix.h"
+
+
+struct pvfs_oplock {
+	struct pvfs_file_handle *handle;
+	struct pvfs_file *file;
+	uint32_t level;
+	struct timeval break_to_level_II;
+	struct timeval break_to_none;
+	struct imessaging_context *msg_ctx;
+};
+
+static NTSTATUS pvfs_oplock_release_internal(struct pvfs_file_handle *h,
+					     uint8_t oplock_break)
+{
+	struct odb_lock *olck;
+	NTSTATUS status;
+
+	if (h->fd == -1) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	if (!h->have_opendb_entry) {
+		return NT_STATUS_FOOBAR;
+	}
+
+	if (!h->oplock) {
+		return NT_STATUS_FOOBAR;
+	}
+
+	olck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+	if (olck == NULL) {
+		DEBUG(0,("Unable to lock opendb for oplock update\n"));
+		return NT_STATUS_FOOBAR;
+	}
+
+	if (oplock_break == OPLOCK_BREAK_TO_NONE) {
+		h->oplock->level = OPLOCK_NONE;
+	} else if (oplock_break == OPLOCK_BREAK_TO_LEVEL_II) {
+		h->oplock->level = OPLOCK_LEVEL_II;
+	} else {
+		/* fallback to level II in case of a invalid value */
+		DEBUG(1,("unexpected oplock break level[0x%02X]\n", oplock_break));
+		h->oplock->level = OPLOCK_LEVEL_II;
+	}
+	status = odb_update_oplock(olck, h, h->oplock->level);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("Unable to update oplock level for '%s' - %s\n",
+			 h->name->full_name, nt_errstr(status)));
+		talloc_free(olck);
+		return status;
+	}
+
+	talloc_free(olck);
+
+	/* after a break to none, we no longer have an oplock attached */
+	if (h->oplock->level == OPLOCK_NONE) {
+		talloc_free(h->oplock);
+		h->oplock = NULL;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  receive oplock breaks and forward them to the client
+*/
+static void pvfs_oplock_break(struct pvfs_oplock *opl, uint8_t level)
+{
+	NTSTATUS status;
+	struct pvfs_file *f = opl->file;
+	struct pvfs_file_handle *h = opl->handle;
+	struct pvfs_state *pvfs = h->pvfs;
+	struct timeval cur = timeval_current();
+	struct timeval *last = NULL;
+	struct timeval end;
+
+	switch (level) {
+	case OPLOCK_BREAK_TO_LEVEL_II:
+		last = &opl->break_to_level_II;
+		break;
+	case OPLOCK_BREAK_TO_NONE:
+		last = &opl->break_to_none;
+		break;
+	}
+
+	if (!last) {
+		DEBUG(0,("%s: got unexpected level[0x%02X]\n",
+			__FUNCTION__, level));
+		return;
+	}
+
+	if (timeval_is_zero(last)) {
+		/*
+		 * this is the first break we for this level
+		 * remember the time
+		 */
+		*last = cur;
+
+		DEBUG(5,("%s: sending oplock break level %d for '%s' %p\n",
+			__FUNCTION__, level, h->name->original_name, h));
+		status = ntvfs_send_oplock_break(pvfs->ntvfs, f->ntvfs, level);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("%s: sending oplock break failed: %s\n",
+				__FUNCTION__, nt_errstr(status)));
+		}
+		return;
+	}
+
+	end = timeval_add(last, pvfs->oplock_break_timeout, 0);
+
+	if (timeval_compare(&cur, &end) < 0) {
+		/*
+		 * If it's not expired just ignore the break
+		 * as we already sent the break request to the client
+		 */
+		DEBUG(0,("%s: do not resend oplock break level %d for '%s' %p\n",
+			__FUNCTION__, level, h->name->original_name, h));
+		return;
+	}
+
+	/*
+	 * If the client did not send a release within the
+	 * oplock break timeout time frame we auto release
+	 * the oplock
+	 */
+	DEBUG(0,("%s: auto release oplock level %d for '%s' %p\n",
+		__FUNCTION__, level, h->name->original_name, h));
+	status = pvfs_oplock_release_internal(h, level);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("%s: failed to auto release the oplock[0x%02X]: %s\n",
+			__FUNCTION__, level, nt_errstr(status)));
+	}
+}
+
+static void pvfs_oplock_break_dispatch(struct imessaging_context *msg,
+				       void *private_data,
+				       uint32_t msg_type,
+				       struct server_id src,
+				       size_t num_fds,
+				       int *fds,
+				       DATA_BLOB *data)
+{
+	struct pvfs_oplock *opl = talloc_get_type(private_data,
+						  struct pvfs_oplock);
+	struct opendb_oplock_break opb;
+
+	if (num_fds != 0) {
+		DBG_WARNING("Received %zu fds, ignoring message\n", num_fds);
+		return;
+	}
+
+	ZERO_STRUCT(opb);
+
+	/* we need to check that this one is for us. See
+	   imessaging_send_ptr() for the other side of this.
+	 */
+	if (data->length == sizeof(struct opendb_oplock_break)) {
+		struct opendb_oplock_break *p;
+		p = (struct opendb_oplock_break *)data->data;
+		opb = *p;
+	} else {
+		DEBUG(0,("%s: ignore oplock break with length[%u]\n",
+			 __location__, (unsigned)data->length));
+		return;
+	}
+	if (opb.file_handle != opl->handle) {
+		return;
+	}
+
+	/*
+	 * maybe we should use ntvfs_setup_async()
+	 */
+	pvfs_oplock_break(opl, opb.level);
+}
+
+static int pvfs_oplock_destructor(struct pvfs_oplock *opl)
+{
+	imessaging_deregister(opl->msg_ctx, MSG_NTVFS_OPLOCK_BREAK, opl);
+	return 0;
+}
+
+NTSTATUS pvfs_setup_oplock(struct pvfs_file *f, uint32_t oplock_granted)
+{
+	NTSTATUS status;
+	struct pvfs_oplock *opl;
+	uint32_t level = OPLOCK_NONE;
+
+	f->handle->oplock = NULL;
+
+	switch (oplock_granted) {
+	case EXCLUSIVE_OPLOCK_RETURN:
+		level = OPLOCK_EXCLUSIVE;
+		break;
+	case BATCH_OPLOCK_RETURN:
+		level = OPLOCK_BATCH;
+		break;
+	case LEVEL_II_OPLOCK_RETURN:
+		level = OPLOCK_LEVEL_II;
+		break;
+	}
+
+	if (level == OPLOCK_NONE) {
+		return NT_STATUS_OK;
+	}
+
+	opl = talloc_zero(f->handle, struct pvfs_oplock);
+	NT_STATUS_HAVE_NO_MEMORY(opl);
+
+	opl->handle	= f->handle;
+	opl->file	= f;
+	opl->level	= level;
+	opl->msg_ctx	= f->pvfs->ntvfs->ctx->msg_ctx;
+
+	status = imessaging_register(opl->msg_ctx,
+				    opl,
+				    MSG_NTVFS_OPLOCK_BREAK,
+				    pvfs_oplock_break_dispatch);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	/* destructor */
+	talloc_set_destructor(opl, pvfs_oplock_destructor);
+
+	f->handle->oplock = opl;
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS pvfs_oplock_release(struct ntvfs_module_context *ntvfs,
+			     struct ntvfs_request *req, union smb_lock *lck)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+	uint8_t oplock_break;
+	NTSTATUS status;
+
+	f = pvfs_find_fd(pvfs, req, lck->lockx.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	oplock_break = (lck->lockx.in.mode >> 8) & 0xFF;
+
+	status = pvfs_oplock_release_internal(f->handle, oplock_break);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("%s: failed to release the oplock[0x%02X]: %s\n",
+			__FUNCTION__, oplock_break, nt_errstr(status)));
+		return status;
+	}
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS pvfs_break_level2_oplocks(struct pvfs_file *f)
+{
+	struct pvfs_file_handle *h = f->handle;
+	struct odb_lock *olck;
+	NTSTATUS status;
+
+	if (h->oplock && h->oplock->level != OPLOCK_LEVEL_II) {
+		return NT_STATUS_OK;
+	}
+
+	olck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+	if (olck == NULL) {
+		DEBUG(0,("Unable to lock opendb for oplock update\n"));
+		return NT_STATUS_FOOBAR;
+	}
+
+	status = odb_break_oplocks(olck);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("Unable to break level2 oplocks to none for '%s' - %s\n",
+			 h->name->full_name, nt_errstr(status)));
+		talloc_free(olck);
+		return status;
+	}
+
+	talloc_free(olck);
+
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_qfileinfo.c b/source4/ntvfs/posix/pvfs_qfileinfo.c
new file mode 100644
index 0000000..be601a2
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_qfileinfo.c
@@ -0,0 +1,468 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - read
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/xattr.h"
+
+
+/*
+  determine what access bits are needed for a call
+*/
+static uint32_t pvfs_fileinfo_access(union smb_fileinfo *info)
+{
+	uint32_t needed;
+
+	switch (info->generic.level) {
+	case RAW_FILEINFO_EA_LIST:
+	case RAW_FILEINFO_ALL_EAS:
+		needed = SEC_FILE_READ_EA;
+		break;
+
+	case RAW_FILEINFO_IS_NAME_VALID:
+		needed = 0;
+		break;
+
+	case RAW_FILEINFO_ACCESS_INFORMATION:
+		needed = 0;
+		break;
+
+	case RAW_FILEINFO_STREAM_INFO:
+	case RAW_FILEINFO_STREAM_INFORMATION:
+		needed = 0;
+		break;
+
+	case RAW_FILEINFO_SEC_DESC:
+		needed = 0;
+		if (info->query_secdesc.in.secinfo_flags & (SECINFO_OWNER|SECINFO_GROUP)) {
+			needed |= SEC_STD_READ_CONTROL;
+		}
+		if (info->query_secdesc.in.secinfo_flags & SECINFO_DACL) {
+			needed |= SEC_STD_READ_CONTROL;
+		}
+		if (info->query_secdesc.in.secinfo_flags & SECINFO_SACL) {
+			needed |= SEC_FLAG_SYSTEM_SECURITY;
+		}
+		break;
+
+	default:
+		needed = SEC_FILE_READ_ATTRIBUTE;
+		break;
+	}
+
+	return needed;
+}
+
+/*
+  reply to a RAW_FILEINFO_EA_LIST call
+*/
+NTSTATUS pvfs_query_ea_list(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx, 
+			    struct pvfs_filename *name, int fd, 
+			    unsigned int num_names,
+			    struct ea_name *names,
+			    struct smb_ea_list *eas)
+{
+	NTSTATUS status;
+	int i;
+	struct xattr_DosEAs *ealist = talloc(mem_ctx, struct xattr_DosEAs);
+
+	ZERO_STRUCTP(eas);
+	status = pvfs_doseas_load(pvfs, name, fd, ealist);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	eas->eas = talloc_array(mem_ctx, struct ea_struct, num_names);
+	if (eas->eas == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	eas->num_eas = num_names;
+	for (i=0;i<num_names;i++) {
+		int j;
+		eas->eas[i].flags = 0;
+		eas->eas[i].name.s = names[i].name.s;
+		eas->eas[i].value = data_blob(NULL, 0);
+		for (j=0;j<ealist->num_eas;j++) {
+			if (strcasecmp_m(eas->eas[i].name.s, 
+				       ealist->eas[j].name) == 0) {
+				if (ealist->eas[j].value.length == 0) {
+					continue;
+				}
+				eas->eas[i].value = ealist->eas[j].value;
+				break;
+			}
+		}
+	}
+	return NT_STATUS_OK;
+}
+
+/*
+  reply to a RAW_FILEINFO_ALL_EAS call
+*/
+static NTSTATUS pvfs_query_all_eas(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx, 
+				   struct pvfs_filename *name, int fd, 
+				   struct smb_ea_list *eas)
+{
+	NTSTATUS status;
+	int i;
+	struct xattr_DosEAs *ealist = talloc(mem_ctx, struct xattr_DosEAs);
+
+	ZERO_STRUCTP(eas);
+	status = pvfs_doseas_load(pvfs, name, fd, ealist);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	eas->eas = talloc_array(mem_ctx, struct ea_struct, ealist->num_eas);
+	if (eas->eas == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	eas->num_eas = 0;
+	for (i=0;i<ealist->num_eas;i++) {
+		eas->eas[eas->num_eas].flags = 0;
+		eas->eas[eas->num_eas].name.s = ealist->eas[i].name;
+		if (ealist->eas[i].value.length == 0) {
+			continue;
+		}
+		eas->eas[eas->num_eas].value = ealist->eas[i].value;
+		eas->num_eas++;
+	}
+	return NT_STATUS_OK;
+}
+
+/*
+  approximately map a struct pvfs_filename to a generic fileinfo struct
+*/
+static NTSTATUS pvfs_map_fileinfo(struct pvfs_state *pvfs, 
+				  struct ntvfs_request *req,
+				  struct pvfs_filename *name, union smb_fileinfo *info, 
+				  int fd)
+{
+	switch (info->generic.level) {
+	case RAW_FILEINFO_GETATTR:
+		info->getattr.out.attrib     = name->dos.attrib;
+		info->getattr.out.size       = name->st.st_size;
+		info->getattr.out.write_time = nt_time_to_unix(name->dos.write_time);
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_GETATTRE:
+	case RAW_FILEINFO_STANDARD:
+		info->standard.out.create_time = nt_time_to_unix(name->dos.create_time);
+		info->standard.out.access_time = nt_time_to_unix(name->dos.access_time);
+		info->standard.out.write_time  = nt_time_to_unix(name->dos.write_time);
+		info->standard.out.size        = name->st.st_size;
+		info->standard.out.alloc_size  = name->dos.alloc_size;
+		info->standard.out.attrib      = name->dos.attrib;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_EA_SIZE:
+		info->ea_size.out.create_time = nt_time_to_unix(name->dos.create_time);
+		info->ea_size.out.access_time = nt_time_to_unix(name->dos.access_time);
+		info->ea_size.out.write_time  = nt_time_to_unix(name->dos.write_time);
+		info->ea_size.out.size        = name->st.st_size;
+		info->ea_size.out.alloc_size  = name->dos.alloc_size;
+		info->ea_size.out.attrib      = name->dos.attrib;
+		info->ea_size.out.ea_size     = name->dos.ea_size;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_EA_LIST:
+		return pvfs_query_ea_list(pvfs, req, name, fd, 
+					  info->ea_list.in.num_names,
+					  info->ea_list.in.ea_names, 
+					  &info->ea_list.out);
+
+	case RAW_FILEINFO_ALL_EAS:
+		return pvfs_query_all_eas(pvfs, req, name, fd, &info->all_eas.out);
+
+	case RAW_FILEINFO_SMB2_ALL_EAS: {
+		NTSTATUS status = pvfs_query_all_eas(pvfs, req, name, fd, &info->all_eas.out);
+		if (NT_STATUS_IS_OK(status) &&
+		    info->all_eas.out.num_eas == 0) {
+			return NT_STATUS_NO_EAS_ON_FILE;
+		}
+		return status;
+	}
+
+	case RAW_FILEINFO_IS_NAME_VALID:
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_BASIC_INFO:
+	case RAW_FILEINFO_BASIC_INFORMATION:
+		info->basic_info.out.create_time = name->dos.create_time;
+		info->basic_info.out.access_time = name->dos.access_time;
+		info->basic_info.out.write_time  = name->dos.write_time;
+		info->basic_info.out.change_time = name->dos.change_time;
+		info->basic_info.out.attrib      = name->dos.attrib;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_STANDARD_INFO:
+	case RAW_FILEINFO_STANDARD_INFORMATION:
+		info->standard_info.out.alloc_size     = name->dos.alloc_size;
+		info->standard_info.out.size           = name->st.st_size;
+		info->standard_info.out.nlink          = name->dos.nlink;
+		info->standard_info.out.delete_pending = 0; /* only for qfileinfo */
+		info->standard_info.out.directory   = 
+			(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)? 1 : 0;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_EA_INFO:
+	case RAW_FILEINFO_EA_INFORMATION:
+		info->ea_info.out.ea_size = name->dos.ea_size;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_NAME_INFO:
+	case RAW_FILEINFO_NAME_INFORMATION:
+		if (req->ctx->protocol >= PROTOCOL_SMB2_02) {
+			/* strange that SMB2 doesn't have this */
+			return NT_STATUS_NOT_SUPPORTED;
+		}
+		info->name_info.out.fname.s = name->original_name;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_ALL_INFO:
+	case RAW_FILEINFO_ALL_INFORMATION:
+		info->all_info.out.create_time    = name->dos.create_time;
+		info->all_info.out.access_time    = name->dos.access_time;
+		info->all_info.out.write_time     = name->dos.write_time;
+		info->all_info.out.change_time    = name->dos.change_time;
+		info->all_info.out.attrib         = name->dos.attrib;
+		info->all_info.out.alloc_size     = name->dos.alloc_size;
+		info->all_info.out.size           = name->st.st_size;
+		info->all_info.out.nlink          = name->dos.nlink;
+		info->all_info.out.delete_pending = 0; /* only set by qfileinfo */
+		info->all_info.out.directory      = 
+			(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)? 1 : 0;
+		info->all_info.out.ea_size        = name->dos.ea_size;
+		info->all_info.out.fname.s        = name->original_name;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_ALT_NAME_INFO:
+	case RAW_FILEINFO_ALT_NAME_INFORMATION:
+	case RAW_FILEINFO_SMB2_ALT_NAME_INFORMATION:
+		info->name_info.out.fname.s = pvfs_short_name(pvfs, name, name);
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_STREAM_INFO:
+	case RAW_FILEINFO_STREAM_INFORMATION:
+		return pvfs_stream_information(pvfs, req, name, fd, &info->stream_info.out);
+
+	case RAW_FILEINFO_COMPRESSION_INFO:
+	case RAW_FILEINFO_COMPRESSION_INFORMATION:
+		info->compression_info.out.compressed_size = name->st.st_size;
+		info->compression_info.out.format          = 0;
+		info->compression_info.out.unit_shift      = 0;
+		info->compression_info.out.chunk_shift     = 0;
+		info->compression_info.out.cluster_shift   = 0;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_INTERNAL_INFORMATION:
+		info->internal_information.out.file_id = name->dos.file_id;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_ACCESS_INFORMATION:
+		info->access_information.out.access_flags = 0; /* only set by qfileinfo */
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_POSITION_INFORMATION:
+		info->position_information.out.position = 0; /* only set by qfileinfo */
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_MODE_INFORMATION:
+		info->mode_information.out.mode = 0; /* only set by qfileinfo */
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_ALIGNMENT_INFORMATION:
+		info->alignment_information.out.alignment_requirement = 0;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_NETWORK_OPEN_INFORMATION:
+		info->network_open_information.out.create_time = name->dos.create_time;
+		info->network_open_information.out.access_time = name->dos.access_time;
+		info->network_open_information.out.write_time  = name->dos.write_time;
+		info->network_open_information.out.change_time = name->dos.change_time;
+		info->network_open_information.out.alloc_size  = name->dos.alloc_size;
+		info->network_open_information.out.size        = name->st.st_size;
+		info->network_open_information.out.attrib      = name->dos.attrib;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_ATTRIBUTE_TAG_INFORMATION:
+		info->attribute_tag_information.out.attrib      = name->dos.attrib;
+		info->attribute_tag_information.out.reparse_tag = 0;
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_SEC_DESC:
+		return pvfs_acl_query(pvfs, req, name, fd, info);
+
+	case RAW_FILEINFO_SMB2_ALL_INFORMATION:
+		info->all_info2.out.create_time    = name->dos.create_time;
+		info->all_info2.out.access_time    = name->dos.access_time;
+		info->all_info2.out.write_time     = name->dos.write_time;
+		info->all_info2.out.change_time    = name->dos.change_time;
+		info->all_info2.out.attrib         = name->dos.attrib;
+		info->all_info2.out.unknown1       = 0;
+		info->all_info2.out.alloc_size     = name->dos.alloc_size;
+		info->all_info2.out.size           = name->st.st_size;
+		info->all_info2.out.nlink          = name->dos.nlink;
+		info->all_info2.out.delete_pending = 0; /* only set by qfileinfo */
+		info->all_info2.out.directory      = 
+			(name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)? 1 : 0;
+		info->all_info2.out.file_id        = name->dos.file_id;
+		info->all_info2.out.ea_size        = name->dos.ea_size;
+		info->all_info2.out.access_mask    = 0; /* only set by qfileinfo */
+		info->all_info2.out.position       = 0; /* only set by qfileinfo */
+		info->all_info2.out.mode           = 0; /* only set by qfileinfo */
+		info->all_info2.out.alignment_requirement = 0;
+		/* windows wants the full path on disk for this
+		   result, but I really don't want to expose that on
+		   the wire, so I'll give the path with a share
+		   prefix, which is a good approximation */
+		info->all_info2.out.fname.s = talloc_asprintf(req, "\\%s\\%s",
+							      pvfs->share_name, 
+							      name->original_name);
+		NT_STATUS_HAVE_NO_MEMORY(info->all_info2.out.fname.s);
+		return NT_STATUS_OK;
+
+	case RAW_FILEINFO_GENERIC:
+	case RAW_FILEINFO_UNIX_BASIC:
+	case RAW_FILEINFO_UNIX_INFO2:
+	case RAW_FILEINFO_UNIX_LINK:
+		return NT_STATUS_INVALID_LEVEL;
+	case RAW_FILEINFO_NORMALIZED_NAME_INFORMATION:
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
+/*
+  return info on a pathname
+*/
+NTSTATUS pvfs_qpathinfo(struct ntvfs_module_context *ntvfs,
+		        struct ntvfs_request *req, union smb_fileinfo *info)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_filename *name;
+	NTSTATUS status;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, info->generic.in.file.path, PVFS_RESOLVE_STREAMS, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->stream_exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	status = pvfs_can_stat(pvfs, req, name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_access_check_simple(pvfs, req, name, 
+					  pvfs_fileinfo_access(info));
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_map_fileinfo(pvfs, req, name, info, -1);
+
+	return status;
+}
+
+/*
+  query info on a open file
+*/
+NTSTATUS pvfs_qfileinfo(struct ntvfs_module_context *ntvfs,
+		        struct ntvfs_request *req, union smb_fileinfo *info)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+	struct pvfs_file_handle *h;
+	NTSTATUS status;
+	uint32_t access_needed;
+
+	f = pvfs_find_fd(pvfs, req, info->generic.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+	h = f->handle;
+
+	access_needed = pvfs_fileinfo_access(info);
+	if ((f->access_mask & access_needed) != access_needed) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	/* update the file information */
+	status = pvfs_resolve_name_handle(pvfs, h);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	
+	status = pvfs_map_fileinfo(pvfs, req, h->name, info, h->fd);
+
+	/* a qfileinfo can fill in a bit more info than a qpathinfo -
+	   now modify the levels that need to be fixed up */
+	switch (info->generic.level) {
+	case RAW_FILEINFO_STANDARD_INFO:
+	case RAW_FILEINFO_STANDARD_INFORMATION:
+		if (pvfs_delete_on_close_set(pvfs, h)) {
+			info->standard_info.out.delete_pending = 1;
+			info->standard_info.out.nlink--;
+		}
+		break;
+
+	case RAW_FILEINFO_ALL_INFO:
+	case RAW_FILEINFO_ALL_INFORMATION:
+		if (pvfs_delete_on_close_set(pvfs, h)) {
+			info->all_info.out.delete_pending = 1;
+			info->all_info.out.nlink--;
+		}
+		break;
+
+	case RAW_FILEINFO_POSITION_INFORMATION:
+		info->position_information.out.position = h->position;
+		break;
+
+	case RAW_FILEINFO_ACCESS_INFORMATION:
+		info->access_information.out.access_flags = f->access_mask;
+		break;
+
+	case RAW_FILEINFO_MODE_INFORMATION:
+		info->mode_information.out.mode = h->mode;
+		break;
+
+	case RAW_FILEINFO_SMB2_ALL_INFORMATION:
+		if (pvfs_delete_on_close_set(pvfs, h)) {
+			info->all_info2.out.delete_pending = 1;
+			info->all_info2.out.nlink--;
+		}
+		info->all_info2.out.position	= h->position;
+		info->all_info2.out.access_mask	= f->access_mask;
+		info->all_info2.out.mode	= h->mode;
+		break;
+
+	default:
+		break;
+	}
+	
+	return status;
+}
diff --git a/source4/ntvfs/posix/pvfs_read.c b/source4/ntvfs/posix/pvfs_read.c
new file mode 100644
index 0000000..09eedd5
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_read.c
@@ -0,0 +1,103 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - read
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "lib/events/events.h"
+
+/*
+  read from a file
+*/
+NTSTATUS pvfs_read(struct ntvfs_module_context *ntvfs,
+		   struct ntvfs_request *req, union smb_read *rd)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	ssize_t ret;
+	struct pvfs_file *f;
+	NTSTATUS status;
+	uint32_t maxcnt;
+	uint32_t mask;
+
+	if (rd->generic.level != RAW_READ_READX) {
+		return ntvfs_map_read(ntvfs, req, rd);
+	}
+
+	f = pvfs_find_fd(pvfs, req, rd->readx.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	if (f->handle->fd == -1) {
+		return NT_STATUS_INVALID_DEVICE_REQUEST;
+	}
+
+	mask = SEC_FILE_READ_DATA;
+	if (rd->readx.in.read_for_execute) {
+		mask |= SEC_FILE_EXECUTE;
+	}
+	if (!(f->access_mask & mask)) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	maxcnt = rd->readx.in.maxcnt;
+	if (maxcnt > 2*UINT16_MAX && req->ctx->protocol < PROTOCOL_SMB2_02) {
+		DEBUG(3,(__location__ ": Invalid SMB maxcnt 0x%x\n", maxcnt));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	status = pvfs_check_lock(pvfs, f, req->smbpid, 
+				 rd->readx.in.offset,
+				 maxcnt,
+				 READ_LOCK);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (f->handle->name->stream_name) {
+		ret = pvfs_stream_read(pvfs, f->handle, 
+				       rd->readx.out.data, maxcnt, rd->readx.in.offset);
+	} else {
+		ret = pread(f->handle->fd, 
+			    rd->readx.out.data, 
+			    maxcnt,
+			    rd->readx.in.offset);
+	}
+	if (ret == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	/* only SMB2 honors mincnt */
+	if (req->ctx->protocol >= PROTOCOL_SMB2_02) {
+		if (rd->readx.in.mincnt > ret ||
+		    (ret == 0 && maxcnt > 0)) {
+			return NT_STATUS_END_OF_FILE;
+		}
+	}
+
+	f->handle->position = f->handle->seek_offset = rd->readx.in.offset + ret;
+
+	rd->readx.out.nread = ret;
+	rd->readx.out.remaining = 0xFFFF;
+	rd->readx.out.compaction_mode = 0; 
+
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_rename.c b/source4/ntvfs/posix/pvfs_rename.c
new file mode 100644
index 0000000..4327161
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_rename.c
@@ -0,0 +1,675 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - rename
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/security.h"
+#include "param/param.h"
+
+
+/*
+  do a file rename, and send any notify triggers
+*/
+NTSTATUS pvfs_do_rename(struct pvfs_state *pvfs,
+			struct odb_lock *lck,
+			const struct pvfs_filename *name1,
+			const char *name2)
+{
+	const char *r1, *r2;
+	uint32_t mask;
+	NTSTATUS status;
+
+	if (pvfs_sys_rename(pvfs, name1->full_name, name2,
+			    name1->allow_override) == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	status = odb_rename(lck, name2);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (name1->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
+		mask = FILE_NOTIFY_CHANGE_DIR_NAME;
+	} else {
+		mask = FILE_NOTIFY_CHANGE_FILE_NAME;
+	}
+	/* 
+	   renames to the same directory cause a OLD_NAME->NEW_NAME notify.
+	   renames to a different directory are considered a remove/add 
+	*/
+	r1 = strrchr_m(name1->full_name, '/');
+	r2 = strrchr_m(name2, '/');
+
+	if ((r1-name1->full_name) != (r2-name2) ||
+	    strncmp(name1->full_name, name2, r1-name1->full_name) != 0) {
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_REMOVED, 
+			       mask,
+			       name1->full_name);
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_ADDED, 
+			       mask,
+			       name2);
+	} else {
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_OLD_NAME, 
+			       mask,
+			       name1->full_name);
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_NEW_NAME, 
+			       mask,
+			       name2);
+	}
+
+	/* this is a strange one. w2k3 gives an additional event for CHANGE_ATTRIBUTES
+	   and CHANGE_CREATION on the new file when renaming files, but not 
+	   directories */
+	if ((name1->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) == 0) {
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_MODIFIED, 
+			       FILE_NOTIFY_CHANGE_ATTRIBUTES|FILE_NOTIFY_CHANGE_CREATION,
+			       name2);
+	}
+	
+	return NT_STATUS_OK;
+}
+
+
+/*
+  resolve a wildcard rename pattern. This works on one component of the name
+*/
+static const char *pvfs_resolve_wildcard_component(TALLOC_CTX *mem_ctx, 
+						   const char *fname, 
+						   const char *pattern)
+{
+	const char *p1, *p2;
+	char *dest, *d;
+
+	/* the length is bounded by the length of the two strings combined */
+	dest = talloc_array(mem_ctx, char, strlen(fname) + strlen(pattern) + 1);
+	if (dest == NULL) {
+		return NULL;
+	}
+
+	p1 = fname;
+	p2 = pattern;
+	d = dest;
+
+	while (*p2) {
+		codepoint_t c1, c2;
+		size_t c_size1, c_size2;
+		c1 = next_codepoint(p1, &c_size1);
+		c2 = next_codepoint(p2, &c_size2);
+		if (c2 == '?') {
+			d += push_codepoint(d, c1);
+		} else if (c2 == '*') {
+			memcpy(d, p1, strlen(p1));
+			d += strlen(p1);
+			break;
+		} else {
+			d += push_codepoint(d, c2);
+		}
+
+		p1 += c_size1;
+		p2 += c_size2;
+	}
+
+	*d = 0;
+
+	talloc_set_name_const(dest, dest);
+
+	return dest;
+}
+
+/*
+  resolve a wildcard rename pattern.
+*/
+static const char *pvfs_resolve_wildcard(TALLOC_CTX *mem_ctx, 
+					 const char *fname, 
+					 const char *pattern)
+{
+	const char *base1, *base2;
+	const char *ext1, *ext2;
+	char *p;
+
+	/* break into base part plus extension */
+	p = strrchr_m(fname, '.');
+	if (p == NULL) {
+		ext1 = "";
+		base1 = fname;
+	} else {
+		ext1 = talloc_strdup(mem_ctx, p+1);
+		base1 = talloc_strndup(mem_ctx, fname, p-fname);
+	}
+	if (ext1 == NULL || base1 == NULL) {
+		return NULL;
+	}
+
+	p = strrchr_m(pattern, '.');
+	if (p == NULL) {
+		ext2 = "";
+		base2 = fname;
+	} else {
+		ext2 = talloc_strdup(mem_ctx, p+1);
+		base2 = talloc_strndup(mem_ctx, pattern, p-pattern);
+	}
+	if (ext2 == NULL || base2 == NULL) {
+		return NULL;
+	}
+
+	base1 = pvfs_resolve_wildcard_component(mem_ctx, base1, base2);
+	ext1 = pvfs_resolve_wildcard_component(mem_ctx, ext1, ext2);
+	if (base1 == NULL || ext1 == NULL) {
+		return NULL;
+	}
+
+	if (*ext1 == 0) {
+		return base1;
+	}
+
+	return talloc_asprintf(mem_ctx, "%s.%s", base1, ext1);
+}
+
+/*
+  retry an rename after a sharing violation
+*/
+static void pvfs_retry_rename(struct pvfs_odb_retry *r,
+			      struct ntvfs_module_context *ntvfs,
+			      struct ntvfs_request *req,
+			      void *_io,
+			      void *private_data,
+			      enum pvfs_wait_notice reason)
+{
+	union smb_rename *io = talloc_get_type(_io, union smb_rename);
+	NTSTATUS status = NT_STATUS_INTERNAL_ERROR;
+
+	talloc_free(r);
+
+	switch (reason) {
+	case PVFS_WAIT_CANCEL:
+/*TODO*/
+		status = NT_STATUS_CANCELLED;
+		break;
+	case PVFS_WAIT_TIMEOUT:
+		/* if it timed out, then give the failure
+		   immediately */
+/*TODO*/
+		status = NT_STATUS_SHARING_VIOLATION;
+		break;
+	case PVFS_WAIT_EVENT:
+
+		/* try the open again, which could trigger another retry setup
+		   if it wants to, so we have to unmark the async flag so we
+		   will know if it does a second async reply */
+		req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC;
+
+		status = pvfs_rename(ntvfs, req, io);
+		if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) {
+			/* the 2nd try also replied async, so we don't send
+			   the reply yet */
+			return;
+		}
+
+		/* re-mark it async, just in case someone up the chain does
+		   paranoid checking */
+		req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+		break;
+	}
+
+	/* send the reply up the chain */
+	req->async_states->status = status;
+	req->async_states->send_fn(req);
+}
+
+/*
+  setup for a rename retry after a sharing violation
+  or a non granted oplock
+*/
+static NTSTATUS pvfs_rename_setup_retry(struct ntvfs_module_context *ntvfs,
+					struct ntvfs_request *req,
+					union smb_rename *io,
+					struct odb_lock *lck,
+					NTSTATUS status)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct timeval end_time;
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       0, pvfs->sharing_violation_delay);
+	} else if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       pvfs->oplock_break_timeout, 0);
+	} else {
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, io, NULL,
+				    pvfs_retry_rename);
+}
+
+/*
+  rename one file from a wildcard set
+*/
+static NTSTATUS pvfs_rename_one(struct pvfs_state *pvfs, 
+				struct ntvfs_request *req, 
+				const char *dir_path,
+				const char *fname1,
+				const char *fname2,
+				uint16_t attrib)
+{
+	struct pvfs_filename *name1, *name2;
+	TALLOC_CTX *mem_ctx = talloc_new(req);
+	struct odb_lock *lck = NULL;
+	NTSTATUS status;
+
+	/* resolve the wildcard pattern for this name */
+	fname2 = pvfs_resolve_wildcard(mem_ctx, fname1, fname2);
+	if (fname2 == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* get a pvfs_filename source object */
+	status = pvfs_resolve_partial(pvfs, mem_ctx, 
+				      dir_path, fname1,
+				      PVFS_RESOLVE_NO_OPENDB,
+				      &name1);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto failed;
+	}
+
+	/* make sure its matches the given attributes */
+	status = pvfs_match_attrib(pvfs, name1, attrib, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto failed;
+	}
+
+	status = pvfs_can_rename(pvfs, req, name1, &lck);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(lck);
+		goto failed;
+	}
+
+	/* get a pvfs_filename dest object */
+	status = pvfs_resolve_partial(pvfs, mem_ctx, 
+				      dir_path, fname2,
+				      PVFS_RESOLVE_NO_OPENDB,
+				      &name2);
+	if (NT_STATUS_IS_OK(status)) {
+		status = pvfs_can_delete(pvfs, req, name2, NULL);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto failed;
+		}
+	}
+
+	status = NT_STATUS_OK;
+
+	fname2 = talloc_asprintf(mem_ctx, "%s/%s", dir_path, fname2);
+	if (fname2 == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_do_rename(pvfs, lck, name1, fname2);
+
+failed:
+	talloc_free(mem_ctx);
+	return status;
+}
+
+
+/*
+  rename a set of files with wildcards
+*/
+static NTSTATUS pvfs_rename_wildcard(struct pvfs_state *pvfs, 
+				     struct ntvfs_request *req, 
+				     union smb_rename *ren, 
+				     struct pvfs_filename *name1, 
+				     struct pvfs_filename *name2)
+{
+	struct pvfs_dir *dir;
+	NTSTATUS status;
+	off_t ofs = 0;
+	const char *fname, *fname2, *dir_path;
+	uint16_t attrib = ren->rename.in.attrib;
+	int total_renamed = 0;
+
+	/* get list of matching files */
+	status = pvfs_list_start(pvfs, name1, req, &dir);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = NT_STATUS_NO_SUCH_FILE;
+
+	dir_path = pvfs_list_unix_path(dir);
+
+	/* only allow wildcard renames within a directory */
+	if (strncmp(dir_path, name2->full_name, strlen(dir_path)) != 0 ||
+	    name2->full_name[strlen(dir_path)] != '/' ||
+	    strchr(name2->full_name + strlen(dir_path) + 1, '/')) {
+		DEBUG(3,(__location__ ": Invalid rename for %s -> %s\n",
+			 name1->original_name, name2->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	fname2 = talloc_strdup(name2, name2->full_name + strlen(dir_path) + 1);
+	if (fname2 == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	while ((fname = pvfs_list_next(dir, &ofs))) {
+		status = pvfs_rename_one(pvfs, req, 
+					 dir_path,
+					 fname, fname2, attrib);
+		if (NT_STATUS_IS_OK(status)) {
+			total_renamed++;
+		}
+	}
+
+	if (total_renamed == 0) {
+		return status;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  rename a set of files - SMBmv interface
+*/
+static NTSTATUS pvfs_rename_mv(struct ntvfs_module_context *ntvfs,
+			       struct ntvfs_request *req, union smb_rename *ren)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct pvfs_filename *name1, *name2;
+	struct odb_lock *lck = NULL;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, ren->rename.in.pattern1, 
+				   PVFS_RESOLVE_WILDCARD, &name1);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_resolve_name(pvfs, req, ren->rename.in.pattern2, 
+				   PVFS_RESOLVE_WILDCARD, &name2);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name1->has_wildcard || name2->has_wildcard) {
+		return pvfs_rename_wildcard(pvfs, req, ren, name1, name2);
+	}
+
+	if (!name1->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (strcmp(name1->full_name, name2->full_name) == 0) {
+		return NT_STATUS_OK;
+	}
+
+	if (name2->exists) {
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	status = pvfs_match_attrib(pvfs, name1, ren->rename.in.attrib, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name2, SEC_DIR_ADD_FILE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_can_rename(pvfs, req, name1, &lck);
+	/*
+	 * on a sharing violation we need to retry when the file is closed by
+	 * the other user, or after 1 second
+	 * on a non granted oplock we need to retry when the file is closed by
+	 * the other user, or after 30 seconds
+	 */
+	if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return pvfs_rename_setup_retry(pvfs->ntvfs, req, ren, lck, status);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_do_rename(pvfs, lck, name1, name2->full_name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	
+	return NT_STATUS_OK;
+}
+
+
+/*
+  rename a stream
+*/
+static NTSTATUS pvfs_rename_stream(struct ntvfs_module_context *ntvfs,
+				   struct ntvfs_request *req, union smb_rename *ren,
+				   struct pvfs_filename *name1)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct odb_lock *lck = NULL;
+
+	if (name1->has_wildcard) {
+		DEBUG(3,(__location__ ": Invalid wildcard rename for %s\n",
+			 name1->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (ren->ntrename.in.new_name[0] != ':') {
+		DEBUG(3,(__location__ ": Invalid rename for %s\n",
+			 ren->ntrename.in.new_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (!name1->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (ren->ntrename.in.flags != RENAME_FLAG_RENAME) {
+		DEBUG(3,(__location__ ": Invalid rename flags 0x%x for %s\n",
+			 ren->ntrename.in.flags, ren->ntrename.in.new_name));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	status = pvfs_can_rename(pvfs, req, name1, &lck);
+	/*
+	 * on a sharing violation we need to retry when the file is closed by
+	 * the other user, or after 1 second
+	 * on a non granted oplock we need to retry when the file is closed by
+	 * the other user, or after 30 seconds
+	 */
+	if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return pvfs_rename_setup_retry(pvfs->ntvfs, req, ren, lck, status);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_access_check_simple(pvfs, req, name1, SEC_FILE_WRITE_ATTRIBUTE);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	status = pvfs_stream_rename(pvfs, name1, -1, 
+				    ren->ntrename.in.new_name+1, 
+				    true);
+	NT_STATUS_NOT_OK_RETURN(status);
+	
+	return NT_STATUS_OK;
+}
+
+/*
+  rename a set of files - ntrename interface
+*/
+static NTSTATUS pvfs_rename_nt(struct ntvfs_module_context *ntvfs,
+			       struct ntvfs_request *req, union smb_rename *ren)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	NTSTATUS status;
+	struct pvfs_filename *name1, *name2;
+	struct odb_lock *lck = NULL;
+
+	switch (ren->ntrename.in.flags) {
+	case RENAME_FLAG_RENAME:
+	case RENAME_FLAG_HARD_LINK:
+	case RENAME_FLAG_COPY:
+	case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
+		break;
+	default:
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, ren->ntrename.in.old_name, 
+				   PVFS_RESOLVE_WILDCARD | PVFS_RESOLVE_STREAMS, &name1);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name1->stream_name) {
+		/* stream renames need to be handled separately */
+		return pvfs_rename_stream(ntvfs, req, ren, name1);
+	}
+
+	status = pvfs_resolve_name(pvfs, req, ren->ntrename.in.new_name, 
+				   PVFS_RESOLVE_WILDCARD, &name2);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name1->has_wildcard || name2->has_wildcard) {
+		return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+	}
+
+	if (!name1->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (strcmp(name1->full_name, name2->full_name) == 0) {
+		return NT_STATUS_OK;
+	}
+
+	if (name2->exists) {
+		return NT_STATUS_OBJECT_NAME_COLLISION;
+	}
+
+	status = pvfs_match_attrib(pvfs, name1, ren->ntrename.in.attrib, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_can_rename(pvfs, req, name1, &lck);
+	/*
+	 * on a sharing violation we need to retry when the file is closed by
+	 * the other user, or after 1 second
+	 * on a non granted oplock we need to retry when the file is closed by
+	 * the other user, or after 30 seconds
+	 */
+	if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return pvfs_rename_setup_retry(pvfs->ntvfs, req, ren, lck, status);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	switch (ren->ntrename.in.flags) {
+	case RENAME_FLAG_RENAME:
+		status = pvfs_access_check_parent(pvfs, req, name2, SEC_DIR_ADD_FILE);
+		NT_STATUS_NOT_OK_RETURN(status);
+		status = pvfs_do_rename(pvfs, lck, name1, name2->full_name);
+		NT_STATUS_NOT_OK_RETURN(status);
+		break;
+
+	case RENAME_FLAG_HARD_LINK:
+		status = pvfs_access_check_parent(pvfs, req, name2, SEC_DIR_ADD_FILE);
+		NT_STATUS_NOT_OK_RETURN(status);
+		if (link(name1->full_name, name2->full_name) == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+		break;
+
+	case RENAME_FLAG_COPY:
+		status = pvfs_access_check_parent(pvfs, req, name2, SEC_DIR_ADD_FILE);
+		NT_STATUS_NOT_OK_RETURN(status);
+		return pvfs_copy_file(pvfs, name1, name2, name1->allow_override && name2->allow_override);
+
+	case RENAME_FLAG_MOVE_CLUSTER_INFORMATION:
+		DEBUG(3,(__location__ ": Invalid rename cluster for %s\n",
+			 name1->original_name));
+		return NT_STATUS_INVALID_PARAMETER;
+
+	default:
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	
+	return NT_STATUS_OK;
+}
+
+/*
+  rename a set of files - ntrename interface
+*/
+NTSTATUS pvfs_rename(struct ntvfs_module_context *ntvfs,
+		     struct ntvfs_request *req, union smb_rename *ren)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+
+	switch (ren->generic.level) {
+	case RAW_RENAME_RENAME:
+		return pvfs_rename_mv(ntvfs, req, ren);
+
+	case RAW_RENAME_NTRENAME:
+		return pvfs_rename_nt(ntvfs, req, ren);
+
+	case RAW_RENAME_NTTRANS:
+		f = pvfs_find_fd(pvfs, req, ren->nttrans.in.file.ntvfs);
+		if (!f) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+
+		/* wk23 ignores the request */
+		return NT_STATUS_OK;
+
+	default:
+		break;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
diff --git a/source4/ntvfs/posix/pvfs_resolve.c b/source4/ntvfs/posix/pvfs_resolve.c
new file mode 100644
index 0000000..cc3d72c
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_resolve.c
@@ -0,0 +1,826 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - filename resolution
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+  this is the core code for converting a filename from the format as
+  given by a client to a posix filename, including any case-matching
+  required, and checks for legal characters
+*/
+
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/dir.h"
+#include "param/param.h"
+
+/**
+  compare two filename components. This is where the name mangling hook will go
+*/
+static int component_compare(struct pvfs_state *pvfs, const char *comp, const char *name)
+{
+	int ret;
+
+	ret = strcasecmp_m(comp, name);
+
+	if (ret != 0) {
+		char *shortname = pvfs_short_name_component(pvfs, name);
+		if (shortname) {
+			ret = strcasecmp_m(comp, shortname);
+			talloc_free(shortname);
+		}
+	}
+
+	return ret;
+}
+
+/*
+  search for a filename in a case insensitive fashion
+
+  TODO: add a cache for previously resolved case-insensitive names
+  TODO: add mangled name support
+*/
+static NTSTATUS pvfs_case_search(struct pvfs_state *pvfs,
+				 struct pvfs_filename *name,
+				 unsigned int flags)
+{
+	/* break into a series of components */
+	size_t num_components;
+	char **components;
+	char *p, *partial_name;
+	size_t i;
+
+	/* break up the full name info pathname components */
+	num_components=2;
+	p = name->full_name + strlen(pvfs->base_directory) + 1;
+
+	for (;*p;p++) {
+		if (*p == '/') {
+			num_components++;
+		}
+	}
+
+	components = talloc_array(name, char *, num_components);
+	p = name->full_name + strlen(pvfs->base_directory);
+	*p++ = 0;
+
+	components[0] = name->full_name;
+
+	for (i=1;i<num_components;i++) {
+		components[i] = p;
+		p = strchr(p, '/');
+		if (p) *p++ = 0;
+		if (pvfs_is_reserved_name(pvfs, components[i])) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+	}
+
+	partial_name = talloc_strdup(name, components[0]);
+	if (!partial_name) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* for each component, check if it exists as-is, and if not then
+	   do a directory scan */
+	for (i=1;i<num_components;i++) {
+		char *test_name;
+		DIR *dir;
+		struct dirent *de;
+		char *long_component;
+
+		/* possibly remap from the short name cache */
+		long_component = pvfs_mangled_lookup(pvfs, name, components[i]);
+		if (long_component) {
+			components[i] = long_component;
+		}
+
+		test_name = talloc_asprintf(name, "%s/%s", partial_name, components[i]);
+		if (!test_name) {
+			return NT_STATUS_NO_MEMORY;
+		}
+
+		/* check if this component exists as-is */
+		if (stat(test_name, &name->st) == 0) {
+			if (i<num_components-1 && !S_ISDIR(name->st.st_mode)) {
+				return NT_STATUS_OBJECT_PATH_NOT_FOUND;
+			}
+			talloc_free(partial_name);
+			partial_name = test_name;
+			if (i == num_components - 1) {
+				name->exists = true;
+			}
+			continue;
+		}
+
+		/* the filesystem might be case insensitive, in which
+		   case a search is pointless unless the name is
+		   mangled */
+		if ((pvfs->flags & PVFS_FLAG_CI_FILESYSTEM) &&
+		    !pvfs_is_mangled_component(pvfs, components[i])) {
+			if (i < num_components-1) {
+				return NT_STATUS_OBJECT_PATH_NOT_FOUND;
+			}
+			partial_name = test_name;
+			continue;
+		}
+		
+		dir = opendir(partial_name);
+		if (!dir) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+
+		while ((de = readdir(dir))) {
+			if (component_compare(pvfs, components[i], de->d_name) == 0) {
+				break;
+			}
+		}
+
+		if (!de) {
+			if (i < num_components-1) {
+				closedir(dir);
+				return NT_STATUS_OBJECT_PATH_NOT_FOUND;
+			}
+		} else {
+			components[i] = talloc_strdup(name, de->d_name);
+		}
+		test_name = talloc_asprintf(name, "%s/%s", partial_name, components[i]);
+		talloc_free(partial_name);
+		partial_name = test_name;
+
+		closedir(dir);
+	}
+
+	if (!name->exists) {
+		if (stat(partial_name, &name->st) == 0) {
+			name->exists = true;
+		}
+	}
+
+	talloc_free(name->full_name);
+	name->full_name = partial_name;
+
+	if (name->exists) {
+		return pvfs_fill_dos_info(pvfs, name, flags, -1);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  parse a alternate data stream name
+*/
+static NTSTATUS parse_stream_name(struct pvfs_filename *name,
+				  const char *s)
+{
+	char *p, *stream_name;
+	if (s[1] == '\0') {
+		return NT_STATUS_OBJECT_NAME_INVALID;
+	}
+	name->stream_name = stream_name = talloc_strdup(name, s+1);
+	if (name->stream_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	p = stream_name;
+
+	while (*p) {
+		size_t c_size;
+		codepoint_t c = next_codepoint(p, &c_size);
+
+		switch (c) {
+		case '/':
+		case '\\':
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		case ':':
+			*p= 0;
+			p++;
+			if (*p == '\0') {
+				return NT_STATUS_OBJECT_NAME_INVALID;
+			}
+			if (strcasecmp_m(p, "$DATA") != 0) {
+				if (strchr_m(p, ':')) {
+					return NT_STATUS_OBJECT_NAME_INVALID;
+				}
+				return NT_STATUS_INVALID_PARAMETER;
+			}
+			c_size = 0;
+			p--;
+			break;
+		}
+
+		p += c_size;
+	}
+
+	if (strcmp(name->stream_name, "") == 0) {
+		/*
+		 * we don't set stream_name to NULL, here
+		 * as this would be wrong for directories
+		 *
+		 * pvfs_fill_dos_info() will set it to NULL
+		 * if it's not a directory.
+		 */
+		name->stream_id = 0;
+	} else {
+		name->stream_id = pvfs_name_hash(name->stream_name, 
+						 strlen(name->stream_name));
+	}
+						 
+	return NT_STATUS_OK;	
+}
+
+
+/*
+  convert a CIFS pathname to a unix pathname. Note that this does NOT
+  take into account case insensitivity, and in fact does not access
+  the filesystem at all. It is merely a reformatting and charset
+  checking routine.
+
+  errors are returned if the filename is illegal given the flags
+*/
+static NTSTATUS pvfs_unix_path(struct pvfs_state *pvfs, const char *cifs_name,
+			       unsigned int flags, struct pvfs_filename *name)
+{
+	char *ret, *p, *p_start;
+	NTSTATUS status;
+
+	name->original_name = talloc_strdup(name, cifs_name);
+
+	/* remove any :$DATA */
+	p = strrchr(name->original_name, ':');
+	if (p && strcasecmp_m(p, ":$DATA") == 0) {
+		if (p > name->original_name && p[-1] == ':') {
+			p--;
+		}
+		*p = 0;
+	}
+
+	name->stream_name = NULL;
+	name->stream_id = 0;
+	name->has_wildcard = false;
+
+	while (*cifs_name == '\\') {
+		cifs_name++;
+	}
+
+	if (*cifs_name == 0) {
+		name->full_name = talloc_asprintf(name, "%s/.", pvfs->base_directory);
+		if (name->full_name == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		return NT_STATUS_OK;
+	}
+
+	ret = talloc_asprintf(name, "%s/%s", pvfs->base_directory, cifs_name);
+	if (ret == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	p = ret + strlen(pvfs->base_directory) + 1;
+
+	/* now do an in-place conversion of '\' to '/', checking
+	   for legal characters */
+	p_start = p;
+
+	while (*p) {
+		size_t c_size;
+		codepoint_t c = next_codepoint(p, &c_size);
+
+		if (c <= 0x1F) {
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		}
+
+		switch (c) {
+		case '\\':
+			if (name->has_wildcard) {
+				/* wildcards are only allowed in the last part
+				   of a name */
+				return NT_STATUS_OBJECT_NAME_INVALID;
+			}
+			if (p > p_start && (p[1] == '\\' || p[1] == '\0')) {
+				/* see if it is definately a "\\" or
+				 * a trailing "\". If it is then fail here,
+				 * and let the next layer up try again after
+				 * pvfs_reduce_name() if it wants to. This is
+				 * much more efficient on average than always
+				 * scanning for these separately
+				 */
+				return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+			} else {
+				*p = '/';
+			}
+			break;
+		case ':':
+			if (!(flags & PVFS_RESOLVE_STREAMS)) {
+				return NT_STATUS_OBJECT_NAME_INVALID;
+			}
+			if (name->has_wildcard) {
+				return NT_STATUS_OBJECT_NAME_INVALID;
+			}
+			status = parse_stream_name(name, p);
+			if (!NT_STATUS_IS_OK(status)) {
+				return status;
+			}
+			*p-- = 0;
+			break;
+		case '*':
+		case '>':
+		case '<':
+		case '?':
+		case '"':
+			if (!(flags & PVFS_RESOLVE_WILDCARD)) {
+				return NT_STATUS_OBJECT_NAME_INVALID;
+			}
+			name->has_wildcard = true;
+			break;
+		case '/':
+		case '|':
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		case '.':
+			/* see if it is definately a .. or
+			   . component. If it is then fail here, and
+			   let the next layer up try again after
+			   pvfs_reduce_name() if it wants to. This is
+			   much more efficient on average than always
+			   scanning for these separately */
+			if (p[1] == '.' && 
+			    (p[2] == 0 || p[2] == '\\') &&
+			    (p == p_start || p[-1] == '/')) {
+				return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+			}
+			if ((p[1] == 0 || p[1] == '\\') &&
+			    (p == p_start || p[-1] == '/')) {
+				return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+			}
+			break;
+		}
+
+		p += c_size;
+	}
+
+	name->full_name = ret;
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  reduce a name that contains .. components or repeated \ separators
+  return NULL if it can't be reduced
+*/
+static NTSTATUS pvfs_reduce_name(TALLOC_CTX *mem_ctx, 
+				 const char **fname, unsigned int flags)
+{
+	codepoint_t c;
+	size_t c_size, len;
+	size_t i, num_components, err_count;
+	char **components;
+	char *p, *s, *ret;
+
+	s = talloc_strdup(mem_ctx, *fname);
+	if (s == NULL) return NT_STATUS_NO_MEMORY;
+
+	for (num_components=1, p=s; *p; p += c_size) {
+		c = next_codepoint(p, &c_size);
+		if (c == '\\') num_components++;
+	}
+
+	components = talloc_array(s, char *, num_components+1);
+	if (components == NULL) {
+		talloc_free(s);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	components[0] = s;
+	for (i=0, p=s; *p; p += c_size) {
+		c = next_codepoint(p, &c_size);
+		if (c == '\\') {
+			*p = 0;
+			components[++i] = p+1;
+		}
+	}
+	components[i+1] = NULL;
+
+	/*
+	  rather bizarre!
+
+	  '.' components are not allowed, but the rules for what error
+	  code to give don't seem to make sense. This is a close
+	  approximation.
+	*/
+	for (err_count=i=0;components[i];i++) {
+		if (strcmp(components[i], "") == 0) {
+			continue;
+		}
+		if (ISDOT(components[i]) || err_count) {
+			err_count++;
+		}
+	}
+	if (err_count > 0) {
+		if (flags & PVFS_RESOLVE_WILDCARD) err_count--;
+
+		if (err_count==1) {
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		} else {
+			return NT_STATUS_OBJECT_PATH_NOT_FOUND;
+		}
+	}
+
+	/* remove any null components */
+	for (i=0;components[i];i++) {
+		if (strcmp(components[i], "") == 0) {
+			memmove(&components[i], &components[i+1], 
+				sizeof(char *)*(num_components-i));
+			i--;
+			continue;
+		}
+		if (ISDOTDOT(components[i])) {
+			if (i < 1) return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+			memmove(&components[i-1], &components[i+1], 
+				sizeof(char *)*(num_components-i));
+			i -= 2;
+			continue;
+		}
+	}
+
+	if (components[0] == NULL) {
+		talloc_free(s);
+		*fname = talloc_strdup(mem_ctx, "\\");
+		return NT_STATUS_OK;
+	}
+
+	for (len=i=0;components[i];i++) {
+		len += strlen(components[i]) + 1;
+	}
+
+	/* rebuild the name */
+	ret = talloc_array(mem_ctx, char, len+1);
+	if (ret == NULL) {
+		talloc_free(s);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	for (len=0,i=0;components[i];i++) {
+		size_t len1 = strlen(components[i]);
+		ret[len] = '\\';
+		memcpy(ret+len+1, components[i], len1);
+		len += len1 + 1;
+	}	
+	ret[len] = 0;
+
+	talloc_set_name_const(ret, ret);
+
+	talloc_free(s);
+
+	*fname = ret;
+	
+	return NT_STATUS_OK;
+}
+
+
+/*
+  resolve a name from relative client format to a struct pvfs_filename
+  the memory for the filename is made as a talloc child of 'name'
+
+  flags include:
+     PVFS_RESOLVE_NO_WILDCARD = wildcards are considered illegal characters
+     PVFS_RESOLVE_STREAMS     = stream names are allowed
+
+     TODO: ../ collapsing, and outside share checking
+*/
+NTSTATUS pvfs_resolve_name(struct pvfs_state *pvfs, 
+			   struct ntvfs_request *req,
+			   const char *cifs_name,
+			   unsigned int flags, struct pvfs_filename **name)
+{
+	NTSTATUS status;
+
+	*name = talloc(req, struct pvfs_filename);
+	if (*name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	(*name)->exists = false;
+	(*name)->stream_exists = false;
+	(*name)->allow_override = false;
+
+	if (!(pvfs->fs_attribs & FS_ATTR_NAMED_STREAMS)) {
+		flags &= ~PVFS_RESOLVE_STREAMS;
+	}
+
+	/* SMB2 doesn't allow a leading slash */
+	if (req->ctx->protocol >= PROTOCOL_SMB2_02 &&
+	    *cifs_name == '\\') {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* do the basic conversion to a unix formatted path,
+	   also checking for allowable characters */
+	status = pvfs_unix_path(pvfs, cifs_name, flags, *name);
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_PATH_SYNTAX_BAD)) {
+		/* it might contain .. components which need to be reduced */
+		status = pvfs_reduce_name(*name, &cifs_name, flags);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+		status = pvfs_unix_path(pvfs, cifs_name, flags, *name);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* if it has a wildcard then no point doing a stat() of the
+	   full name. Instead We need check if the directory exists 
+	 */
+	if ((*name)->has_wildcard) {
+		const char *p;
+		char *dir_name, *saved_name;
+		p = strrchr((*name)->full_name, '/');
+		if (p == NULL) {
+			/* root directory wildcard is OK */
+			return NT_STATUS_OK;
+		}
+		dir_name = talloc_strndup(*name, (*name)->full_name, (p-(*name)->full_name));
+		if (stat(dir_name, &(*name)->st) == 0) {
+			talloc_free(dir_name);
+			return NT_STATUS_OK;
+		}
+		/* we need to search for a matching name */
+		saved_name = (*name)->full_name;
+		(*name)->full_name = dir_name;
+		status = pvfs_case_search(pvfs, *name, flags);
+		if (!NT_STATUS_IS_OK(status)) {
+			/* the directory doesn't exist */
+			(*name)->full_name = saved_name;
+			return status;
+		}
+		/* it does exist, but might need a case change */
+		if (dir_name != (*name)->full_name) {
+			(*name)->full_name = talloc_asprintf(*name, "%s%s",
+							     (*name)->full_name, p);
+			NT_STATUS_HAVE_NO_MEMORY((*name)->full_name);
+		} else {
+			(*name)->full_name = saved_name;
+			talloc_free(dir_name);
+		}
+		return NT_STATUS_OK;
+	}
+
+	/* if we can stat() the full name now then we are done */
+	if (stat((*name)->full_name, &(*name)->st) == 0) {
+		(*name)->exists = true;
+		return pvfs_fill_dos_info(pvfs, *name, flags, -1);
+	}
+
+	/* search for a matching filename */
+	status = pvfs_case_search(pvfs, *name, flags);
+
+	return status;
+}
+
+
+/*
+  do a partial resolve, returning a pvfs_filename structure given a
+  base path and a relative component. It is an error if the file does
+  not exist. No case-insensitive matching is done.
+
+  this is used in places like directory searching where we need a pvfs_filename
+  to pass to a function, but already know the unix base directory and component
+*/
+NTSTATUS pvfs_resolve_partial(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx,
+			      const char *unix_dir, const char *fname,
+			      unsigned int flags, struct pvfs_filename **name)
+{
+	NTSTATUS status;
+
+	*name = talloc(mem_ctx, struct pvfs_filename);
+	if (*name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	(*name)->full_name = talloc_asprintf(*name, "%s/%s", unix_dir, fname);
+	if ((*name)->full_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (stat((*name)->full_name, &(*name)->st) == -1) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	(*name)->exists = true;
+	(*name)->stream_exists = true;
+	(*name)->has_wildcard = false;
+	(*name)->original_name = talloc_strdup(*name, fname);
+	(*name)->stream_name = NULL;
+	(*name)->stream_id = 0;
+	(*name)->allow_override = false;
+
+	status = pvfs_fill_dos_info(pvfs, *name, flags, -1);
+
+	return status;
+}
+
+
+/*
+  fill in the pvfs_filename info for an open file, given the current
+  info for a (possibly) non-open file. This is used by places that need
+  to update the pvfs_filename stat information, and by pvfs_open()
+*/
+NTSTATUS pvfs_resolve_name_fd(struct pvfs_state *pvfs, int fd,
+			      struct pvfs_filename *name, unsigned int flags)
+{
+	dev_t device = (dev_t)0;
+	ino_t inode = 0;
+
+	if (name->exists) {
+		device = name->st.st_dev;
+		inode = name->st.st_ino;
+	}
+
+	if (fd == -1) {
+		if (stat(name->full_name, &name->st) == -1) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+	} else {
+		if (fstat(fd, &name->st) == -1) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+	}
+
+	if (name->exists &&
+	    (device != name->st.st_dev || inode != name->st.st_ino)) {
+		/* the file we are looking at has changed! this could
+		 be someone trying to exploit a race
+		 condition. Certainly we don't want to continue
+		 operating on this file */
+		DEBUG(0,("pvfs: WARNING: file '%s' changed during resolve - failing\n",
+			 name->full_name));
+		return NT_STATUS_UNEXPECTED_IO_ERROR;
+	}
+
+	name->exists = true;
+	
+	return pvfs_fill_dos_info(pvfs, name, flags, fd);
+}
+
+/*
+  fill in the pvfs_filename info for an open file, given the current
+  info for a (possibly) non-open file. This is used by places that need
+  to update the pvfs_filename stat information, and the path
+  after a possible rename on a different handle.
+*/
+NTSTATUS pvfs_resolve_name_handle(struct pvfs_state *pvfs,
+				  struct pvfs_file_handle *h)
+{
+	NTSTATUS status;
+
+	if (h->have_opendb_entry) {
+		struct odb_lock *lck;
+		const char *name = NULL;
+
+		lck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("%s: failed to lock file '%s' in opendb\n",
+				 __FUNCTION__, h->name->full_name));
+			/* we were supposed to do a blocking lock, so something
+			   is badly wrong! */
+			return NT_STATUS_INTERNAL_DB_CORRUPTION;
+		}
+
+		status = odb_get_path(lck, &name);
+		if (NT_STATUS_IS_OK(status)) {
+			/*
+			 * This relies an the fact that
+			 * renames of open files are only
+			 * allowed by setpathinfo() and setfileinfo()
+			 * and there're only renames within the same
+			 * directory supported
+			 */
+			if (strcmp(h->name->full_name, name) != 0) {
+				const char *orig_dir;
+				const char *new_file;
+				char *new_orig;
+				char *delim;
+				char *full_name = discard_const_p(char, name);
+
+				delim = strrchr(name, '/');
+				if (!delim) {
+					talloc_free(lck);
+					return NT_STATUS_INTERNAL_ERROR;
+				}
+
+				new_file = delim + 1;
+				delim = strrchr(h->name->original_name, '\\');
+				if (delim) {
+					delim[0] = '\0';
+					orig_dir = h->name->original_name;
+					new_orig = talloc_asprintf(h->name, "%s\\%s",
+								   orig_dir, new_file);
+					if (!new_orig) {
+						talloc_free(lck);
+						return NT_STATUS_NO_MEMORY;
+					}
+				} else {
+					new_orig = talloc_strdup(h->name, new_file);
+					if (!new_orig) {
+						talloc_free(lck);
+						return NT_STATUS_NO_MEMORY;
+					}
+				}
+
+				talloc_free(h->name->original_name);
+				talloc_free(h->name->full_name);
+				h->name->full_name = talloc_steal(h->name, full_name);
+				h->name->original_name = new_orig;
+			}
+		}
+
+		talloc_free(lck);
+	}
+
+	/*
+	 * TODO: pass PVFS_RESOLVE_NO_OPENDB and get
+	 *       the write time from odb_lock() above.
+	 */
+	status = pvfs_resolve_name_fd(pvfs, h->fd, h->name, 0);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (!null_nttime(h->write_time.close_time)) {
+		h->name->dos.write_time = h->write_time.close_time;
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  resolve the parent of a given name
+*/
+NTSTATUS pvfs_resolve_parent(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx,
+			     const struct pvfs_filename *child,
+			     struct pvfs_filename **name)
+{
+	NTSTATUS status;
+	char *p;
+
+	*name = talloc(mem_ctx, struct pvfs_filename);
+	if (*name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	(*name)->full_name = talloc_strdup(*name, child->full_name);
+	if ((*name)->full_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	p = strrchr_m((*name)->full_name, '/');
+	if (p == NULL) {
+		return NT_STATUS_OBJECT_PATH_SYNTAX_BAD;
+	}
+
+	/* this handles the root directory */
+	if (p == (*name)->full_name) {
+		p[1] = 0;
+	} else {
+		p[0] = 0;
+	}
+
+	if (stat((*name)->full_name, &(*name)->st) == -1) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	(*name)->exists = true;
+	(*name)->stream_exists = true;
+	(*name)->has_wildcard = false;
+	/* we can't get the correct 'original_name', but for the purposes
+	   of this call this is close enough */
+	(*name)->original_name = talloc_strdup(*name, child->original_name);
+	if ((*name)->original_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	(*name)->stream_name = NULL;
+	(*name)->stream_id = 0;
+	(*name)->allow_override = false;
+
+	status = pvfs_fill_dos_info(pvfs, *name, PVFS_RESOLVE_NO_OPENDB, -1);
+
+	return status;
+}
diff --git a/source4/ntvfs/posix/pvfs_search.c b/source4/ntvfs/posix/pvfs_search.c
new file mode 100644
index 0000000..f50319b
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_search.c
@@ -0,0 +1,864 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - directory search functions
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/time.h"
+#include "librpc/gen_ndr/security.h"
+#include "samba/service_stream.h"
+#include "lib/events/events.h"
+#include "../lib/util/dlinklist.h"
+
+/* place a reasonable limit on old-style searches as clients tend to
+   not send search close requests */
+#define MAX_OLD_SEARCHES 2000
+#define MAX_SEARCH_HANDLES (UINT16_MAX - 1)
+#define INVALID_SEARCH_HANDLE UINT16_MAX
+
+/*
+  destroy an open search
+*/
+static int pvfs_search_destructor(struct pvfs_search_state *search)
+{
+	DLIST_REMOVE(search->pvfs->search.list, search);
+	idr_remove(search->pvfs->search.idtree, search->handle);
+	return 0;
+}
+
+/*
+  called when a search timer goes off
+*/
+static void pvfs_search_timer(struct tevent_context *ev, struct tevent_timer *te, 
+				      struct timeval t, void *ptr)
+{
+	struct pvfs_search_state *search = talloc_get_type(ptr, struct pvfs_search_state);
+	talloc_free(search);
+}
+
+/*
+  setup a timer to destroy a open search after a inactivity period
+*/
+static void pvfs_search_setup_timer(struct pvfs_search_state *search)
+{
+	struct tevent_context *ev = search->pvfs->ntvfs->ctx->event_ctx;
+	if (search->handle == INVALID_SEARCH_HANDLE) return;
+	talloc_free(search->te);
+	search->te = tevent_add_timer(ev, search,
+				     timeval_current_ofs(search->pvfs->search.inactivity_time, 0), 
+				     pvfs_search_timer, search);
+}
+
+/*
+  fill in a single search result for a given info level
+*/
+static NTSTATUS fill_search_info(struct pvfs_state *pvfs,
+				 enum smb_search_data_level level,
+				 const char *unix_path,
+				 const char *fname, 
+				 struct pvfs_search_state *search,
+				 off_t dir_offset,
+				 union smb_search_data *file)
+{
+	struct pvfs_filename *name;
+	NTSTATUS status;
+	const char *shortname;
+	uint32_t dir_index = (uint32_t)dir_offset; /* truncated - see the code 
+						      in pvfs_list_seek_ofs() for 
+						      how we cope with this */
+
+	status = pvfs_resolve_partial(pvfs, file, unix_path, fname, 0, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_match_attrib(pvfs, name, search->search_attrib, search->must_attrib);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	switch (level) {
+	case RAW_SEARCH_DATA_SEARCH:
+		shortname = pvfs_short_name(pvfs, name, name);
+		file->search.attrib           = name->dos.attrib;
+		file->search.write_time       = nt_time_to_unix(name->dos.write_time);
+		file->search.size             = name->st.st_size;
+		file->search.name             = shortname;
+		file->search.id.reserved      = search->handle >> 8;
+		memset(file->search.id.name, ' ', sizeof(file->search.id.name));
+		memcpy(file->search.id.name, shortname, 
+		       MIN(strlen(shortname)+1, sizeof(file->search.id.name)));
+		file->search.id.handle        = search->handle & 0xFF;
+		file->search.id.server_cookie = dir_index;
+		file->search.id.client_cookie = 0;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_STANDARD:
+		file->standard.resume_key   = dir_index;
+		file->standard.create_time  = nt_time_to_unix(name->dos.create_time);
+		file->standard.access_time  = nt_time_to_unix(name->dos.access_time);
+		file->standard.write_time   = nt_time_to_unix(name->dos.write_time);
+		file->standard.size         = name->st.st_size;
+		file->standard.alloc_size   = name->dos.alloc_size;
+		file->standard.attrib       = name->dos.attrib;
+		file->standard.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_EA_SIZE:
+		file->ea_size.resume_key   = dir_index;
+		file->ea_size.create_time  = nt_time_to_unix(name->dos.create_time);
+		file->ea_size.access_time  = nt_time_to_unix(name->dos.access_time);
+		file->ea_size.write_time   = nt_time_to_unix(name->dos.write_time);
+		file->ea_size.size         = name->st.st_size;
+		file->ea_size.alloc_size   = name->dos.alloc_size;
+		file->ea_size.attrib       = name->dos.attrib;
+		file->ea_size.ea_size      = name->dos.ea_size;
+		file->ea_size.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_EA_LIST:
+		file->ea_list.resume_key   = dir_index;
+		file->ea_list.create_time  = nt_time_to_unix(name->dos.create_time);
+		file->ea_list.access_time  = nt_time_to_unix(name->dos.access_time);
+		file->ea_list.write_time   = nt_time_to_unix(name->dos.write_time);
+		file->ea_list.size         = name->st.st_size;
+		file->ea_list.alloc_size   = name->dos.alloc_size;
+		file->ea_list.attrib       = name->dos.attrib;
+		file->ea_list.name.s       = fname;
+		return pvfs_query_ea_list(pvfs, file, name, -1, 
+					  search->num_ea_names,
+					  search->ea_names,
+					  &file->ea_list.eas);
+
+	case RAW_SEARCH_DATA_DIRECTORY_INFO:
+		file->directory_info.file_index   = dir_index;
+		file->directory_info.create_time  = name->dos.create_time;
+		file->directory_info.access_time  = name->dos.access_time;
+		file->directory_info.write_time   = name->dos.write_time;
+		file->directory_info.change_time  = name->dos.change_time;
+		file->directory_info.size         = name->st.st_size;
+		file->directory_info.alloc_size   = name->dos.alloc_size;
+		file->directory_info.attrib       = name->dos.attrib;
+		file->directory_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_FULL_DIRECTORY_INFO:
+		file->full_directory_info.file_index   = dir_index;
+		file->full_directory_info.create_time  = name->dos.create_time;
+		file->full_directory_info.access_time  = name->dos.access_time;
+		file->full_directory_info.write_time   = name->dos.write_time;
+		file->full_directory_info.change_time  = name->dos.change_time;
+		file->full_directory_info.size         = name->st.st_size;
+		file->full_directory_info.alloc_size   = name->dos.alloc_size;
+		file->full_directory_info.attrib       = name->dos.attrib;
+		file->full_directory_info.ea_size      = name->dos.ea_size;
+		file->full_directory_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_NAME_INFO:
+		file->name_info.file_index   = dir_index;
+		file->name_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO:
+		file->both_directory_info.file_index   = dir_index;
+		file->both_directory_info.create_time  = name->dos.create_time;
+		file->both_directory_info.access_time  = name->dos.access_time;
+		file->both_directory_info.write_time   = name->dos.write_time;
+		file->both_directory_info.change_time  = name->dos.change_time;
+		file->both_directory_info.size         = name->st.st_size;
+		file->both_directory_info.alloc_size   = name->dos.alloc_size;
+		file->both_directory_info.attrib       = name->dos.attrib;
+		file->both_directory_info.ea_size      = name->dos.ea_size;
+		file->both_directory_info.short_name.s = pvfs_short_name(pvfs, file, name);
+		file->both_directory_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO:
+		file->id_full_directory_info.file_index   = dir_index;
+		file->id_full_directory_info.create_time  = name->dos.create_time;
+		file->id_full_directory_info.access_time  = name->dos.access_time;
+		file->id_full_directory_info.write_time   = name->dos.write_time;
+		file->id_full_directory_info.change_time  = name->dos.change_time;
+		file->id_full_directory_info.size         = name->st.st_size;
+		file->id_full_directory_info.alloc_size   = name->dos.alloc_size;
+		file->id_full_directory_info.attrib       = name->dos.attrib;
+		file->id_full_directory_info.ea_size      = name->dos.ea_size;
+		file->id_full_directory_info.file_id      = name->dos.file_id;
+		file->id_full_directory_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO:
+		file->id_both_directory_info.file_index   = dir_index;
+		file->id_both_directory_info.create_time  = name->dos.create_time;
+		file->id_both_directory_info.access_time  = name->dos.access_time;
+		file->id_both_directory_info.write_time   = name->dos.write_time;
+		file->id_both_directory_info.change_time  = name->dos.change_time;
+		file->id_both_directory_info.size         = name->st.st_size;
+		file->id_both_directory_info.alloc_size   = name->dos.alloc_size;
+		file->id_both_directory_info.attrib       = name->dos.attrib;
+		file->id_both_directory_info.ea_size      = name->dos.ea_size;
+		file->id_both_directory_info.file_id      = name->dos.file_id;
+		file->id_both_directory_info.short_name.s = pvfs_short_name(pvfs, file, name);
+		file->id_both_directory_info.name.s       = fname;
+		return NT_STATUS_OK;
+
+	case RAW_SEARCH_DATA_GENERIC:
+	case RAW_SEARCH_DATA_UNIX_INFO:
+	case RAW_SEARCH_DATA_UNIX_INFO2:
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
+
+/*
+  the search fill loop
+*/
+static NTSTATUS pvfs_search_fill(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx, 
+				 unsigned int max_count,
+				 struct pvfs_search_state *search,
+				 enum smb_search_data_level level,
+				 unsigned int *reply_count,
+				 void *search_private, 
+				 bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_dir *dir = search->dir;
+	NTSTATUS status;
+
+	*reply_count = 0;
+
+	if (max_count == 0) {
+		max_count = 1;
+	}
+
+	while ((*reply_count) < max_count) {
+		union smb_search_data *file;
+		const char *name;
+		off_t ofs = search->current_index;
+
+		name = pvfs_list_next(dir, &search->current_index);
+		if (name == NULL) break;
+
+		file = talloc(mem_ctx, union smb_search_data);
+		if (!file) {
+			return NT_STATUS_NO_MEMORY;
+		}
+
+		status = fill_search_info(pvfs, level, 
+					  pvfs_list_unix_path(dir), name, 
+					  search, search->current_index, file);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(file);
+			continue;
+		}
+
+		if (!callback(search_private, file)) {
+			talloc_free(file);
+			search->current_index = ofs;
+			break;
+		}
+
+		(*reply_count)++;
+		talloc_free(file);
+	}
+
+	pvfs_search_setup_timer(search);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  we've run out of search handles - cleanup those that the client forgot
+  to close
+*/
+static void pvfs_search_cleanup(struct pvfs_state *pvfs)
+{
+	int i;
+	time_t t = time_mono(NULL);
+
+	for (i=0;i<MAX_OLD_SEARCHES;i++) {
+		struct pvfs_search_state *search;
+		void *p = idr_find(pvfs->search.idtree, i);
+
+		if (p == NULL) return;
+
+		search = talloc_get_type(p, struct pvfs_search_state);
+		if (pvfs_list_eos(search->dir, search->current_index) &&
+		    search->last_used != 0 &&
+		    t > search->last_used + 30) {
+			/* its almost certainly been forgotten
+			 about */
+			talloc_free(search);
+		}
+	}
+}
+
+
+/* 
+   list files in a directory matching a wildcard pattern - old SMBsearch interface
+*/
+static NTSTATUS pvfs_search_first_old(struct ntvfs_module_context *ntvfs,
+				      struct ntvfs_request *req, union smb_search_first *io, 
+				      void *search_private, 
+				      bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_dir *dir;
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_search_state *search;
+	unsigned int reply_count;
+	uint16_t search_attrib;
+	const char *pattern;
+	NTSTATUS status;
+	struct pvfs_filename *name;
+	int id;
+
+	search_attrib = io->search_first.in.search_attrib;
+	pattern       = io->search_first.in.pattern;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, pattern, PVFS_RESOLVE_WILDCARD, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->has_wildcard && !name->exists) {
+		return STATUS_NO_MORE_FILES;
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name, SEC_DIR_TRAVERSE | SEC_DIR_LIST);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* we initially make search a child of the request, then if we
+	   need to keep it long term we steal it for the private
+	   structure */
+	search = talloc(req, struct pvfs_search_state);
+	if (!search) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* do the actual directory listing */
+	status = pvfs_list_start(pvfs, name, search, &dir);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* we need to give a handle back to the client so it
+	   can continue a search */
+	id = idr_get_new(pvfs->search.idtree, search, MAX_OLD_SEARCHES);
+	if (id == -1) {
+		pvfs_search_cleanup(pvfs);
+		id = idr_get_new(pvfs->search.idtree, search, MAX_OLD_SEARCHES);
+	}
+	if (id == -1) {
+		return NT_STATUS_INSUFFICIENT_RESOURCES;
+	}
+
+	search->pvfs = pvfs;
+	search->handle = id;
+	search->dir = dir;
+	search->current_index = 0;
+	search->search_attrib = search_attrib & 0xFF;
+	search->must_attrib = (search_attrib>>8) & 0xFF;
+	search->last_used = time_mono(NULL);
+	search->te = NULL;
+
+	DLIST_ADD(pvfs->search.list, search);
+
+	talloc_set_destructor(search, pvfs_search_destructor);
+
+	status = pvfs_search_fill(pvfs, req, io->search_first.in.max_count, search, io->generic.data_level,
+				  &reply_count, search_private, callback);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	io->search_first.out.count = reply_count;
+
+	/* not matching any entries is an error */
+	if (reply_count == 0) {
+		return STATUS_NO_MORE_FILES;
+	}
+
+	talloc_steal(pvfs, search);
+
+	return NT_STATUS_OK;
+}
+
+/* continue a old style search */
+static NTSTATUS pvfs_search_next_old(struct ntvfs_module_context *ntvfs,
+				     struct ntvfs_request *req, union smb_search_next *io, 
+				     void *search_private, 
+				     bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	void *p;
+	struct pvfs_search_state *search;
+	struct pvfs_dir *dir;
+	unsigned int reply_count, max_count;
+	uint16_t handle;
+	NTSTATUS status;
+
+	handle    = io->search_next.in.id.handle | (io->search_next.in.id.reserved<<8);
+	max_count = io->search_next.in.max_count;
+
+	p = idr_find(pvfs->search.idtree, handle);
+	if (p == NULL) {
+		/* we didn't find the search handle */
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	search = talloc_get_type(p, struct pvfs_search_state);
+
+	dir = search->dir;
+
+	status = pvfs_list_seek_ofs(dir, io->search_next.in.id.server_cookie, 
+				    &search->current_index);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	search->last_used = time_mono(NULL);
+
+	status = pvfs_search_fill(pvfs, req, max_count, search, io->generic.data_level,
+				  &reply_count, search_private, callback);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	io->search_next.out.count = reply_count;
+
+	/* not matching any entries means end of search */
+	if (reply_count == 0) {
+		talloc_free(search);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/* 
+   list files in a directory matching a wildcard pattern
+*/
+static NTSTATUS pvfs_search_first_trans2(struct ntvfs_module_context *ntvfs,
+					 struct ntvfs_request *req, union smb_search_first *io, 
+					 void *search_private, 
+					 bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_dir *dir;
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_search_state *search;
+	unsigned int reply_count;
+	uint16_t search_attrib, max_count;
+	const char *pattern;
+	NTSTATUS status;
+	struct pvfs_filename *name;
+	int id;
+
+	search_attrib = io->t2ffirst.in.search_attrib;
+	pattern       = io->t2ffirst.in.pattern;
+	max_count     = io->t2ffirst.in.max_count;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, pattern, PVFS_RESOLVE_WILDCARD, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->has_wildcard && !name->exists) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name, SEC_DIR_TRAVERSE | SEC_DIR_LIST);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* we initially make search a child of the request, then if we
+	   need to keep it long term we steal it for the private
+	   structure */
+	search = talloc(req, struct pvfs_search_state);
+	if (!search) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* do the actual directory listing */
+	status = pvfs_list_start(pvfs, name, search, &dir);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	id = idr_get_new(pvfs->search.idtree, search, MAX_SEARCH_HANDLES);
+	if (id == -1) {
+		return NT_STATUS_INSUFFICIENT_RESOURCES;
+	}
+
+	search->pvfs = pvfs;
+	search->handle = id;
+	search->dir = dir;
+	search->current_index = 0;
+	search->search_attrib = search_attrib;
+	search->must_attrib = 0;
+	search->last_used = 0;
+	search->num_ea_names = io->t2ffirst.in.num_names;
+	search->ea_names = io->t2ffirst.in.ea_names;
+	search->te = NULL;
+
+	DLIST_ADD(pvfs->search.list, search);
+	talloc_set_destructor(search, pvfs_search_destructor);
+
+	status = pvfs_search_fill(pvfs, req, max_count, search, io->generic.data_level,
+				  &reply_count, search_private, callback);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* not matching any entries is an error */
+	if (reply_count == 0) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+
+	io->t2ffirst.out.count = reply_count;
+	io->t2ffirst.out.handle = search->handle;
+	io->t2ffirst.out.end_of_search = pvfs_list_eos(dir, search->current_index) ? 1 : 0;
+
+	/* work out if we are going to keep the search state
+	   and allow for a search continue */
+	if ((io->t2ffirst.in.flags & FLAG_TRANS2_FIND_CLOSE) ||
+	    ((io->t2ffirst.in.flags & FLAG_TRANS2_FIND_CLOSE_IF_END) && 
+	     io->t2ffirst.out.end_of_search)) {
+		talloc_free(search);
+	} else {
+		talloc_steal(pvfs, search);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/* continue a search */
+static NTSTATUS pvfs_search_next_trans2(struct ntvfs_module_context *ntvfs,
+					struct ntvfs_request *req, union smb_search_next *io, 
+					void *search_private, 
+					bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	void *p;
+	struct pvfs_search_state *search;
+	struct pvfs_dir *dir;
+	unsigned int reply_count;
+	uint16_t handle;
+	NTSTATUS status;
+
+	handle = io->t2fnext.in.handle;
+
+	p = idr_find(pvfs->search.idtree, handle);
+	if (p == NULL) {
+		/* we didn't find the search handle */
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	search = talloc_get_type(p, struct pvfs_search_state);
+
+	dir = search->dir;
+	
+	status = NT_STATUS_OK;
+
+	/* work out what type of continuation is being used */
+	if (io->t2fnext.in.last_name && *io->t2fnext.in.last_name) {
+		status = pvfs_list_seek(dir, io->t2fnext.in.last_name, &search->current_index);
+		if (!NT_STATUS_IS_OK(status) && io->t2fnext.in.resume_key) {
+			status = pvfs_list_seek_ofs(dir, io->t2fnext.in.resume_key, 
+						    &search->current_index);
+		}
+	} else if (!(io->t2fnext.in.flags & FLAG_TRANS2_FIND_CONTINUE)) {
+		status = pvfs_list_seek_ofs(dir, io->t2fnext.in.resume_key, 
+					    &search->current_index);
+	}
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	search->num_ea_names = io->t2fnext.in.num_names;
+	search->ea_names = io->t2fnext.in.ea_names;
+
+	status = pvfs_search_fill(pvfs, req, io->t2fnext.in.max_count, search, io->generic.data_level,
+				  &reply_count, search_private, callback);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	io->t2fnext.out.count = reply_count;
+	io->t2fnext.out.end_of_search = pvfs_list_eos(dir, search->current_index) ? 1 : 0;
+
+	/* work out if we are going to keep the search state */
+	if ((io->t2fnext.in.flags & FLAG_TRANS2_FIND_CLOSE) ||
+	    ((io->t2fnext.in.flags & FLAG_TRANS2_FIND_CLOSE_IF_END) && 
+	     io->t2fnext.out.end_of_search)) {
+		talloc_free(search);
+	}
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS pvfs_search_first_smb2(struct ntvfs_module_context *ntvfs,
+				       struct ntvfs_request *req, const struct smb2_find *io, 
+				       void *search_private, 
+				       bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_dir *dir;
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_search_state *search;
+	unsigned int reply_count;
+	uint16_t max_count;
+	const char *pattern;
+	NTSTATUS status;
+	struct pvfs_filename *name;
+	struct pvfs_file *f;
+
+	f = pvfs_find_fd(pvfs, req, io->in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_FILE_CLOSED;
+	}
+
+	/* its only valid for directories */
+	if (f->handle->fd != -1) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (!(f->access_mask & SEC_DIR_LIST)) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (f->search) {
+		talloc_free(f->search);
+		f->search = NULL;
+	}
+
+	if (strequal(io->in.pattern, "")) {
+		return NT_STATUS_OBJECT_NAME_INVALID;
+	}
+	if (strchr_m(io->in.pattern, '\\')) {
+		return NT_STATUS_OBJECT_NAME_INVALID;
+	}
+	if (strchr_m(io->in.pattern, '/')) {
+		return NT_STATUS_OBJECT_NAME_INVALID;
+	}
+
+	if (strequal("", f->handle->name->original_name)) {
+		pattern = talloc_asprintf(req, "%s", io->in.pattern);
+		NT_STATUS_HAVE_NO_MEMORY(pattern);
+	} else {
+		pattern = talloc_asprintf(req, "%s\\%s",
+					  f->handle->name->original_name,
+					  io->in.pattern);
+		NT_STATUS_HAVE_NO_MEMORY(pattern);
+	}
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, pattern, PVFS_RESOLVE_WILDCARD, &name);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (!name->has_wildcard && !name->exists) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+
+	/* we initially make search a child of the request, then if we
+	   need to keep it long term we steal it for the private
+	   structure */
+	search = talloc(req, struct pvfs_search_state);
+	NT_STATUS_HAVE_NO_MEMORY(search);
+
+	/* do the actual directory listing */
+	status = pvfs_list_start(pvfs, name, search, &dir);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	search->pvfs		= pvfs;
+	search->handle		= INVALID_SEARCH_HANDLE;
+	search->dir		= dir;
+	search->current_index	= 0;
+	search->search_attrib	= 0x0000FFFF;
+	search->must_attrib	= 0;
+	search->last_used	= 0;
+	search->num_ea_names	= 0;
+	search->ea_names	= NULL;
+	search->te		= NULL;
+
+	if (io->in.continue_flags & SMB2_CONTINUE_FLAG_SINGLE) {
+		max_count = 1;
+	} else {
+		max_count = UINT16_MAX;
+	}
+
+	status = pvfs_search_fill(pvfs, req, max_count, search, io->data_level,
+				  &reply_count, search_private, callback);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	/* not matching any entries is an error */
+	if (reply_count == 0) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+
+	f->search = talloc_steal(f, search);
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS pvfs_search_next_smb2(struct ntvfs_module_context *ntvfs,
+				      struct ntvfs_request *req, const struct smb2_find *io, 
+				      void *search_private, 
+				      bool (*callback)(void *, const union smb_search_data *))
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_search_state *search;
+	unsigned int reply_count;
+	uint16_t max_count;
+	NTSTATUS status;
+	struct pvfs_file *f;
+
+	f = pvfs_find_fd(pvfs, req, io->in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_FILE_CLOSED;
+	}
+
+	/* its only valid for directories */
+	if (f->handle->fd != -1) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* if there's no search started on the dir handle, it's like a search_first */
+	search = f->search;
+	if (!search) {
+		return pvfs_search_first_smb2(ntvfs, req, io, search_private, callback);
+	}
+
+	if (io->in.continue_flags & SMB2_CONTINUE_FLAG_RESTART) {
+		search->current_index = 0;
+	}
+
+	if (io->in.continue_flags & SMB2_CONTINUE_FLAG_SINGLE) {
+		max_count = 1;
+	} else {
+		max_count = UINT16_MAX;
+	}
+
+	status = pvfs_search_fill(pvfs, req, max_count, search, io->data_level,
+				  &reply_count, search_private, callback);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	/* not matching any entries is an error */
+	if (reply_count == 0) {
+		return STATUS_NO_MORE_FILES;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/* 
+   list files in a directory matching a wildcard pattern
+*/
+NTSTATUS pvfs_search_first(struct ntvfs_module_context *ntvfs,
+			   struct ntvfs_request *req, union smb_search_first *io, 
+			   void *search_private, 
+			   bool (*callback)(void *, const union smb_search_data *))
+{
+	switch (io->generic.level) {
+	case RAW_SEARCH_SEARCH:
+	case RAW_SEARCH_FFIRST:
+	case RAW_SEARCH_FUNIQUE:
+		return pvfs_search_first_old(ntvfs, req, io, search_private, callback);
+
+	case RAW_SEARCH_TRANS2:
+		return pvfs_search_first_trans2(ntvfs, req, io, search_private, callback);
+
+	case RAW_SEARCH_SMB2:
+		return pvfs_search_first_smb2(ntvfs, req, &io->smb2, search_private, callback);
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
+/* continue a search */
+NTSTATUS pvfs_search_next(struct ntvfs_module_context *ntvfs,
+			  struct ntvfs_request *req, union smb_search_next *io, 
+			  void *search_private, 
+			  bool (*callback)(void *, const union smb_search_data *))
+{
+	switch (io->generic.level) {
+	case RAW_SEARCH_SEARCH:
+	case RAW_SEARCH_FFIRST:
+		return pvfs_search_next_old(ntvfs, req, io, search_private, callback);
+
+	case RAW_SEARCH_FUNIQUE:
+		return NT_STATUS_INVALID_LEVEL;
+
+	case RAW_SEARCH_TRANS2:
+		return pvfs_search_next_trans2(ntvfs, req, io, search_private, callback);
+
+	case RAW_SEARCH_SMB2:
+		return pvfs_search_next_smb2(ntvfs, req, &io->smb2, search_private, callback);
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
+
+/* close a search */
+NTSTATUS pvfs_search_close(struct ntvfs_module_context *ntvfs,
+			   struct ntvfs_request *req, union smb_search_close *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	void *p;
+	struct pvfs_search_state *search;
+	uint16_t handle = INVALID_SEARCH_HANDLE;
+
+	switch (io->generic.level) {
+	case RAW_FINDCLOSE_GENERIC:
+		return NT_STATUS_INVALID_LEVEL;
+
+	case RAW_FINDCLOSE_FCLOSE:
+		handle = io->fclose.in.id.handle;
+		break;
+
+	case RAW_FINDCLOSE_FINDCLOSE:
+		handle = io->findclose.in.handle;
+		break;
+	}
+
+	p = idr_find(pvfs->search.idtree, handle);
+	if (p == NULL) {
+		/* we didn't find the search handle */
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	search = talloc_get_type(p, struct pvfs_search_state);
+
+	talloc_free(search);
+
+	return NT_STATUS_OK;
+}
+
diff --git a/source4/ntvfs/posix/pvfs_seek.c b/source4/ntvfs/posix/pvfs_seek.c
new file mode 100644
index 0000000..2cd3410
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_seek.c
@@ -0,0 +1,65 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - seek
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+
+/*
+  seek in a file
+*/
+NTSTATUS pvfs_seek(struct ntvfs_module_context *ntvfs,
+		   struct ntvfs_request *req,
+		   union smb_seek *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+	struct pvfs_file_handle *h;
+	NTSTATUS status;
+
+	f = pvfs_find_fd(pvfs, req, io->lseek.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+	h = f->handle;
+
+	status = NT_STATUS_OK;
+
+	switch (io->lseek.in.mode) {
+	case SEEK_MODE_START:
+		h->seek_offset = io->lseek.in.offset;
+		break;
+
+	case SEEK_MODE_CURRENT:
+		h->seek_offset += io->lseek.in.offset;
+		break;
+
+	case SEEK_MODE_END:
+		status = pvfs_resolve_name_fd(pvfs, h->fd, h->name, PVFS_RESOLVE_NO_OPENDB);
+		h->seek_offset = h->name->st.st_size + io->lseek.in.offset;
+		break;
+	}
+
+	io->lseek.out.offset = h->seek_offset;
+
+	return status;
+}
+
diff --git a/source4/ntvfs/posix/pvfs_setfileinfo.c b/source4/ntvfs/posix/pvfs_setfileinfo.c
new file mode 100644
index 0000000..7fd4e35
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_setfileinfo.c
@@ -0,0 +1,884 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - setfileinfo
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/time.h"
+#include "librpc/gen_ndr/xattr.h"
+
+
+/*
+  determine what access bits are needed for a call
+*/
+static uint32_t pvfs_setfileinfo_access(union smb_setfileinfo *info)
+{
+	uint32_t needed;
+
+	switch (info->generic.level) {
+	case RAW_SFILEINFO_EA_SET:
+		needed = SEC_FILE_WRITE_EA;
+		break;
+
+	case RAW_SFILEINFO_DISPOSITION_INFO:
+	case RAW_SFILEINFO_DISPOSITION_INFORMATION:
+		needed = SEC_STD_DELETE;
+		break;
+
+	case RAW_SFILEINFO_END_OF_FILE_INFO:
+		needed = SEC_FILE_WRITE_DATA;
+		break;
+
+	case RAW_SFILEINFO_POSITION_INFORMATION:
+		needed = 0;
+		break;
+
+	case RAW_SFILEINFO_SEC_DESC:
+		needed = 0;
+		if (info->set_secdesc.in.secinfo_flags & (SECINFO_OWNER|SECINFO_GROUP)) {
+			needed |= SEC_STD_WRITE_OWNER;
+		}
+		if (info->set_secdesc.in.secinfo_flags & SECINFO_DACL) {
+			needed |= SEC_STD_WRITE_DAC;
+		}
+		if (info->set_secdesc.in.secinfo_flags & SECINFO_SACL) {
+			needed |= SEC_FLAG_SYSTEM_SECURITY;
+		}
+		break;
+
+	case RAW_SFILEINFO_RENAME_INFORMATION:
+	case RAW_SFILEINFO_RENAME_INFORMATION_SMB2:
+		needed = SEC_STD_DELETE;
+		break;
+
+	default:
+		needed = SEC_FILE_WRITE_ATTRIBUTE;
+		break;
+	}
+
+	return needed;
+}
+
+/*
+  rename_information level for streams
+*/
+static NTSTATUS pvfs_setfileinfo_rename_stream(struct pvfs_state *pvfs, 
+					       struct ntvfs_request *req, 
+					       struct pvfs_filename *name,
+					       int fd,
+					       DATA_BLOB *odb_locking_key,
+					       union smb_setfileinfo *info)
+{
+	NTSTATUS status;
+	struct odb_lock *lck = NULL;
+
+	/* strangely, this gives a sharing violation, not invalid
+	   parameter */
+	if (info->rename_information.in.new_name[0] != ':') {
+		return NT_STATUS_SHARING_VIOLATION;
+	}
+
+	status = pvfs_access_check_simple(pvfs, req, name, SEC_FILE_WRITE_ATTRIBUTE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, odb_locking_key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_stat\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+
+	status = pvfs_stream_rename(pvfs, name, fd, 
+				    info->rename_information.in.new_name+1,
+				    info->rename_information.in.overwrite);
+	return status;
+}
+
+/*
+  rename_information level
+*/
+static NTSTATUS pvfs_setfileinfo_rename(struct pvfs_state *pvfs, 
+					struct ntvfs_request *req, 
+					struct pvfs_filename *name,
+					int fd,
+					DATA_BLOB *odb_locking_key,
+					union smb_setfileinfo *info)
+{
+	NTSTATUS status;
+	struct pvfs_filename *name2;
+	char *new_name, *p;
+	struct odb_lock *lck = NULL;
+
+	/* renames are only allowed within a directory */
+	if (strchr_m(info->rename_information.in.new_name, '\\') &&
+	    (req->ctx->protocol < PROTOCOL_SMB2_02)) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	/* handle stream renames specially */
+	if (name->stream_name) {
+		return pvfs_setfileinfo_rename_stream(pvfs, req, name, fd, 
+						      odb_locking_key, info);
+	}
+
+	/* w2k3 does not appear to allow relative rename. On SMB2, vista sends it sometimes,
+	   but I suspect it is just uninitialised memory */
+	if (info->rename_information.in.root_fid != 0 && 
+	    (req->ctx->protocol < PROTOCOL_SMB2_02)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* construct the fully qualified windows name for the new file name */
+	if (req->ctx->protocol >= PROTOCOL_SMB2_02) {
+		/* SMB2 sends the full path of the new name */
+		new_name = talloc_asprintf(req, "\\%s", info->rename_information.in.new_name);
+	} else {
+		new_name = talloc_strdup(req, name->original_name);
+		if (new_name == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		p = strrchr_m(new_name, '\\');
+		if (p == NULL) {
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		} else {
+			*p = 0;
+		}
+
+		new_name = talloc_asprintf(req, "%s\\%s", new_name,
+					   info->rename_information.in.new_name);
+	}
+	if (new_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* resolve the new name */
+	status = pvfs_resolve_name(pvfs, req, new_name, 0, &name2);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* if the destination exists, then check the rename is allowed */
+	if (name2->exists) {
+		if (strcmp(name2->full_name, name->full_name) == 0) {
+			/* rename to same name is null-op */
+			return NT_STATUS_OK;
+		}
+
+		if (!info->rename_information.in.overwrite) {
+			return NT_STATUS_OBJECT_NAME_COLLISION;
+		}
+
+		status = pvfs_can_delete(pvfs, req, name2, NULL);
+		if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
+			return NT_STATUS_ACCESS_DENIED;
+		}
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	status = pvfs_access_check_parent(pvfs, req, name2, SEC_DIR_ADD_FILE);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	lck = odb_lock(req, pvfs->odb_context, odb_locking_key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for can_stat\n"));
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	status = pvfs_do_rename(pvfs, lck, name, name2->full_name);
+	talloc_free(lck);
+	NT_STATUS_NOT_OK_RETURN(status);
+	if (NT_STATUS_IS_OK(status)) {
+		name->full_name = talloc_steal(name, name2->full_name);
+		name->original_name = talloc_steal(name, name2->original_name);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  add a single DOS EA
+*/
+NTSTATUS pvfs_setfileinfo_ea_set(struct pvfs_state *pvfs, 
+				 struct pvfs_filename *name,
+				 int fd, uint16_t num_eas,
+				 struct ea_struct *eas)
+{
+	struct xattr_DosEAs *ealist;
+	int i, j;
+	NTSTATUS status;
+
+	if (num_eas == 0) {
+		return NT_STATUS_OK;
+	}
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	ealist = talloc(name, struct xattr_DosEAs);
+
+	/* load the current list */
+	status = pvfs_doseas_load(pvfs, name, fd, ealist);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	for (j=0;j<num_eas;j++) {
+		struct ea_struct *ea = &eas[j];
+		/* see if its already there */
+		for (i=0;i<ealist->num_eas;i++) {
+			if (strcasecmp_m(ealist->eas[i].name, ea->name.s) == 0) {
+				ealist->eas[i].value = ea->value;
+				break;
+			}
+		}
+
+		if (i==ealist->num_eas) {
+			/* add it */
+			ealist->eas = talloc_realloc(ealist, ealist->eas, 
+						       struct xattr_EA, 
+						       ealist->num_eas+1);
+			if (ealist->eas == NULL) {
+				return NT_STATUS_NO_MEMORY;
+			}
+			ealist->eas[i].name = ea->name.s;
+			ealist->eas[i].value = ea->value;
+			ealist->num_eas++;
+		}
+	}
+	
+	/* pull out any null EAs */
+	for (i=0;i<ealist->num_eas;i++) {
+		if (ealist->eas[i].value.length == 0) {
+			memmove(&ealist->eas[i],
+				&ealist->eas[i+1],
+				(ealist->num_eas-(i+1)) * sizeof(ealist->eas[i]));
+			ealist->num_eas--;
+			i--;
+		}
+	}
+
+	status = pvfs_doseas_save(pvfs, name, fd, ealist);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_MODIFIED, 
+		       FILE_NOTIFY_CHANGE_EA,
+		       name->full_name);
+
+	name->dos.ea_size = 4;
+	for (i=0;i<ealist->num_eas;i++) {
+		name->dos.ea_size += 4 + strlen(ealist->eas[i].name)+1 + 
+			ealist->eas[i].value.length;
+	}
+
+	/* update the ea_size attrib */
+	return pvfs_dosattrib_save(pvfs, name, fd);
+}
+
+/*
+  set info on a open file
+*/
+NTSTATUS pvfs_setfileinfo(struct ntvfs_module_context *ntvfs,
+			  struct ntvfs_request *req, 
+			  union smb_setfileinfo *info)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+	struct pvfs_file_handle *h;
+	struct pvfs_filename newstats;
+	NTSTATUS status;
+	uint32_t access_needed;
+	uint32_t change_mask = 0;
+
+	f = pvfs_find_fd(pvfs, req, info->generic.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	h = f->handle;
+
+	access_needed = pvfs_setfileinfo_access(info);
+	if ((f->access_mask & access_needed) != access_needed) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	/* update the file information */
+	status = pvfs_resolve_name_handle(pvfs, h);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* we take a copy of the current file stats, then update
+	   newstats in each of the elements below. At the end we
+	   compare, and make any changes needed */
+	newstats = *h->name;
+
+	switch (info->generic.level) {
+	case RAW_SFILEINFO_SETATTR:
+		if (!null_time(info->setattr.in.write_time)) {
+			unix_to_nt_time(&newstats.dos.write_time, info->setattr.in.write_time);
+		}
+		if (info->setattr.in.attrib != FILE_ATTRIBUTE_NORMAL) {
+			newstats.dos.attrib = info->setattr.in.attrib;
+		}
+  		break;
+
+	case RAW_SFILEINFO_SETATTRE:
+	case RAW_SFILEINFO_STANDARD:
+		if (!null_time(info->setattre.in.create_time)) {
+			unix_to_nt_time(&newstats.dos.create_time, info->setattre.in.create_time);
+		}
+		if (!null_time(info->setattre.in.access_time)) {
+			unix_to_nt_time(&newstats.dos.access_time, info->setattre.in.access_time);
+		}
+		if (!null_time(info->setattre.in.write_time)) {
+			unix_to_nt_time(&newstats.dos.write_time, info->setattre.in.write_time);
+		}
+  		break;
+
+	case RAW_SFILEINFO_EA_SET:
+		return pvfs_setfileinfo_ea_set(pvfs, h->name, h->fd,
+					       info->ea_set.in.num_eas,
+					       info->ea_set.in.eas);
+
+	case RAW_SFILEINFO_BASIC_INFO:
+	case RAW_SFILEINFO_BASIC_INFORMATION:
+		if (!null_nttime(info->basic_info.in.create_time)) {
+			newstats.dos.create_time = info->basic_info.in.create_time;
+		}
+		if (!null_nttime(info->basic_info.in.access_time)) {
+			newstats.dos.access_time = info->basic_info.in.access_time;
+		}
+		if (!null_nttime(info->basic_info.in.write_time)) {
+			newstats.dos.write_time = info->basic_info.in.write_time;
+		}
+		if (!null_nttime(info->basic_info.in.change_time)) {
+			newstats.dos.change_time = info->basic_info.in.change_time;
+		}
+		if (info->basic_info.in.attrib != 0) {
+			newstats.dos.attrib = info->basic_info.in.attrib;
+		}
+  		break;
+
+	case RAW_SFILEINFO_DISPOSITION_INFO:
+	case RAW_SFILEINFO_DISPOSITION_INFORMATION:
+		return pvfs_set_delete_on_close(pvfs, req, f, 
+						info->disposition_info.in.delete_on_close);
+
+	case RAW_SFILEINFO_ALLOCATION_INFO:
+	case RAW_SFILEINFO_ALLOCATION_INFORMATION:
+		status = pvfs_break_level2_oplocks(f);
+		NT_STATUS_NOT_OK_RETURN(status);
+
+		newstats.dos.alloc_size = info->allocation_info.in.alloc_size;
+		if (newstats.dos.alloc_size < newstats.st.st_size) {
+			newstats.st.st_size = newstats.dos.alloc_size;
+		}
+		newstats.dos.alloc_size = pvfs_round_alloc_size(pvfs, 
+								newstats.dos.alloc_size);
+		break;
+
+	case RAW_SFILEINFO_END_OF_FILE_INFO:
+	case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
+		status = pvfs_break_level2_oplocks(f);
+		NT_STATUS_NOT_OK_RETURN(status);
+
+		newstats.st.st_size = info->end_of_file_info.in.size;
+		break;
+
+	case RAW_SFILEINFO_POSITION_INFORMATION:
+		h->position = info->position_information.in.position;
+		break;
+
+	case RAW_SFILEINFO_FULL_EA_INFORMATION:
+		return pvfs_setfileinfo_ea_set(pvfs, h->name, h->fd,
+				info->full_ea_information.in.eas.num_eas,
+				info->full_ea_information.in.eas.eas);
+
+	case RAW_SFILEINFO_MODE_INFORMATION:
+		/* this one is a puzzle */
+		if (info->mode_information.in.mode != 0 &&
+		    info->mode_information.in.mode != 2 &&
+		    info->mode_information.in.mode != 4 &&
+		    info->mode_information.in.mode != 6) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		h->mode = info->mode_information.in.mode;
+		break;
+
+	case RAW_SFILEINFO_RENAME_INFORMATION:
+	case RAW_SFILEINFO_RENAME_INFORMATION_SMB2:
+		return pvfs_setfileinfo_rename(pvfs, req, h->name, f->handle->fd,
+					       &h->odb_locking_key,
+					       info);
+
+	case RAW_SFILEINFO_SEC_DESC:
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_MODIFIED, 
+			       FILE_NOTIFY_CHANGE_SECURITY,
+			       h->name->full_name);
+		return pvfs_acl_set(pvfs, req, h->name, h->fd, f->access_mask, info);
+
+	default:
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	/* possibly change the file size */
+	if (newstats.st.st_size != h->name->st.st_size) {
+		if (h->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
+			return NT_STATUS_FILE_IS_A_DIRECTORY;
+		}
+		if (h->name->stream_name) {
+			status = pvfs_stream_truncate(pvfs, h->name, h->fd, newstats.st.st_size);
+			if (!NT_STATUS_IS_OK(status)) {
+				return status;
+			}
+			
+			change_mask |= FILE_NOTIFY_CHANGE_STREAM_SIZE;
+		} else {
+			int ret;
+			if (f->access_mask & 
+			    (SEC_FILE_WRITE_DATA|SEC_FILE_APPEND_DATA)) {
+				ret = ftruncate(h->fd, newstats.st.st_size);
+			} else {
+				ret = truncate(h->name->full_name, newstats.st.st_size);
+			}
+			if (ret == -1) {
+				return pvfs_map_errno(pvfs, errno);
+			}
+			change_mask |= FILE_NOTIFY_CHANGE_SIZE | FILE_NOTIFY_CHANGE_ATTRIBUTES;
+		}
+	}
+
+	/* possibly change the file timestamps */
+	if (newstats.dos.create_time != h->name->dos.create_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_CREATION;
+	}
+	if (newstats.dos.access_time != h->name->dos.access_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
+	}
+	if (newstats.dos.write_time != h->name->dos.write_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_LAST_WRITE;
+	}
+	if ((change_mask & FILE_NOTIFY_CHANGE_LAST_ACCESS) ||
+	    (change_mask & FILE_NOTIFY_CHANGE_LAST_WRITE)) {
+		struct timeval tv[2];
+
+		nttime_to_timeval(&tv[0], newstats.dos.access_time);
+		nttime_to_timeval(&tv[1], newstats.dos.write_time);
+
+		if (!timeval_is_zero(&tv[0]) || !timeval_is_zero(&tv[1])) {
+			if (utimes(h->name->full_name, tv) == -1) {
+				DEBUG(0,("pvfs_setfileinfo: utimes() failed '%s' - %s\n",
+					 h->name->full_name, strerror(errno)));
+				return pvfs_map_errno(pvfs, errno);
+			}
+		}
+	}
+	if (change_mask & FILE_NOTIFY_CHANGE_LAST_WRITE) {
+		struct odb_lock *lck;
+
+		lck = odb_lock(req, h->pvfs->odb_context, &h->odb_locking_key);
+		if (lck == NULL) {
+			DEBUG(0,("Unable to lock opendb for write time update\n"));
+			return NT_STATUS_INTERNAL_ERROR;
+		}
+
+		status = odb_set_write_time(lck, newstats.dos.write_time, true);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("Unable to update write time: %s\n",
+				nt_errstr(status)));
+			talloc_free(lck);
+			return status;
+		}
+
+		talloc_free(lck);
+
+		h->write_time.update_forced = true;
+		h->write_time.update_on_close = false;
+		talloc_free(h->write_time.update_event);
+		h->write_time.update_event = NULL;
+	}
+
+	/* possibly change the attribute */
+	if (newstats.dos.attrib != h->name->dos.attrib) {
+		mode_t mode;
+		if ((newstats.dos.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+		    !(h->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		mode = pvfs_fileperms(pvfs, newstats.dos.attrib);
+		if (!(h->name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+			if (pvfs_sys_fchmod(pvfs, h->fd, mode, h->name->allow_override) == -1) {
+				return pvfs_map_errno(pvfs, errno);
+			}
+		}
+		change_mask |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
+	}
+
+	*h->name = newstats;
+
+	notify_trigger(pvfs->notify_context, 
+		       NOTIFY_ACTION_MODIFIED, 
+		       change_mask,
+		       h->name->full_name);
+
+	return pvfs_dosattrib_save(pvfs, h->name, h->fd);
+}
+
+/*
+  retry an open after a sharing violation
+*/
+static void pvfs_retry_setpathinfo(struct pvfs_odb_retry *r,
+				   struct ntvfs_module_context *ntvfs,
+				   struct ntvfs_request *req,
+				   void *_info,
+				   void *private_data,
+				   enum pvfs_wait_notice reason)
+{
+	union smb_setfileinfo *info = talloc_get_type(_info,
+				      union smb_setfileinfo);
+	NTSTATUS status = NT_STATUS_INTERNAL_ERROR;
+
+	talloc_free(r);
+
+	switch (reason) {
+	case PVFS_WAIT_CANCEL:
+/*TODO*/
+		status = NT_STATUS_CANCELLED;
+		break;
+	case PVFS_WAIT_TIMEOUT:
+		/* if it timed out, then give the failure
+		   immediately */
+/*TODO*/
+		status = NT_STATUS_SHARING_VIOLATION;
+		break;
+	case PVFS_WAIT_EVENT:
+
+		/* try the open again, which could trigger another retry setup
+		   if it wants to, so we have to unmark the async flag so we
+		   will know if it does a second async reply */
+		req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC;
+
+		status = pvfs_setpathinfo(ntvfs, req, info);
+		if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) {
+			/* the 2nd try also replied async, so we don't send
+			   the reply yet */
+			return;
+		}
+
+		/* re-mark it async, just in case someone up the chain does
+		   paranoid checking */
+		req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+		break;
+	}
+
+	/* send the reply up the chain */
+	req->async_states->status = status;
+	req->async_states->send_fn(req);
+}
+
+/*
+  setup for a unlink retry after a sharing violation
+  or a non granted oplock
+*/
+static NTSTATUS pvfs_setpathinfo_setup_retry(struct ntvfs_module_context *ntvfs,
+					     struct ntvfs_request *req,
+					     union smb_setfileinfo *info,
+					     struct odb_lock *lck,
+					     NTSTATUS status)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct timeval end_time;
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       0, pvfs->sharing_violation_delay);
+	} else if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       pvfs->oplock_break_timeout, 0);
+	} else {
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, info, NULL,
+				    pvfs_retry_setpathinfo);
+}
+
+/*
+  set info on a pathname
+*/
+NTSTATUS pvfs_setpathinfo(struct ntvfs_module_context *ntvfs,
+			  struct ntvfs_request *req, union smb_setfileinfo *info)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_filename *name;
+	struct pvfs_filename newstats;
+	NTSTATUS status;
+	uint32_t access_needed;
+	uint32_t change_mask = 0;
+	struct odb_lock *lck = NULL;
+	DATA_BLOB odb_locking_key;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, info->generic.in.file.path, 
+				   PVFS_RESOLVE_STREAMS, &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	access_needed = pvfs_setfileinfo_access(info);
+	status = pvfs_access_check_simple(pvfs, req, name, access_needed);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* we take a copy of the current file stats, then update
+	   newstats in each of the elements below. At the end we
+	   compare, and make any changes needed */
+	newstats = *name;
+
+	switch (info->generic.level) {
+	case RAW_SFILEINFO_SETATTR:
+		if (!null_time(info->setattr.in.write_time)) {
+			unix_to_nt_time(&newstats.dos.write_time, info->setattr.in.write_time);
+		}
+		if (info->setattr.in.attrib == 0) {
+			newstats.dos.attrib = FILE_ATTRIBUTE_NORMAL;
+		} else if (info->setattr.in.attrib != FILE_ATTRIBUTE_NORMAL) {
+			newstats.dos.attrib = info->setattr.in.attrib;
+		}
+  		break;
+
+	case RAW_SFILEINFO_SETATTRE:
+	case RAW_SFILEINFO_STANDARD:
+		if (!null_time(info->setattre.in.create_time)) {
+			unix_to_nt_time(&newstats.dos.create_time, info->setattre.in.create_time);
+		}
+		if (!null_time(info->setattre.in.access_time)) {
+			unix_to_nt_time(&newstats.dos.access_time, info->setattre.in.access_time);
+		}
+		if (!null_time(info->setattre.in.write_time)) {
+			unix_to_nt_time(&newstats.dos.write_time, info->setattre.in.write_time);
+		}
+  		break;
+
+	case RAW_SFILEINFO_EA_SET:
+		return pvfs_setfileinfo_ea_set(pvfs, name, -1, 
+					       info->ea_set.in.num_eas,
+					       info->ea_set.in.eas);
+
+	case RAW_SFILEINFO_BASIC_INFO:
+	case RAW_SFILEINFO_BASIC_INFORMATION:
+		if (!null_nttime(info->basic_info.in.create_time)) {
+			newstats.dos.create_time = info->basic_info.in.create_time;
+		}
+		if (!null_nttime(info->basic_info.in.access_time)) {
+			newstats.dos.access_time = info->basic_info.in.access_time;
+		}
+		if (!null_nttime(info->basic_info.in.write_time)) {
+			newstats.dos.write_time = info->basic_info.in.write_time;
+		}
+		if (!null_nttime(info->basic_info.in.change_time)) {
+			newstats.dos.change_time = info->basic_info.in.change_time;
+		}
+		if (info->basic_info.in.attrib != 0) {
+			newstats.dos.attrib = info->basic_info.in.attrib;
+		}
+  		break;
+
+	case RAW_SFILEINFO_ALLOCATION_INFO:
+	case RAW_SFILEINFO_ALLOCATION_INFORMATION:
+		status = pvfs_can_update_file_size(pvfs, req, name, &lck);
+		/*
+		 * on a sharing violation we need to retry when the file is closed by
+		 * the other user, or after 1 second
+		 * on a non granted oplock we need to retry when the file is closed by
+		 * the other user, or after 30 seconds
+		*/
+		if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+		     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+		    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+			return pvfs_setpathinfo_setup_retry(pvfs->ntvfs, req, info, lck, status);
+		}
+		NT_STATUS_NOT_OK_RETURN(status);
+
+		if (info->allocation_info.in.alloc_size > newstats.dos.alloc_size) {
+			/* strange. Increasing the allocation size via setpathinfo 
+			   should be silently ignored */
+			break;
+		}
+		newstats.dos.alloc_size = info->allocation_info.in.alloc_size;
+		if (newstats.dos.alloc_size < newstats.st.st_size) {
+			newstats.st.st_size = newstats.dos.alloc_size;
+		}
+		newstats.dos.alloc_size = pvfs_round_alloc_size(pvfs, 
+								newstats.dos.alloc_size);
+		break;
+
+	case RAW_SFILEINFO_END_OF_FILE_INFO:
+	case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
+		status = pvfs_can_update_file_size(pvfs, req, name, &lck);
+		/*
+		 * on a sharing violation we need to retry when the file is closed by
+		 * the other user, or after 1 second
+		 * on a non granted oplock we need to retry when the file is closed by
+		 * the other user, or after 30 seconds
+		*/
+		if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+		     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+		    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+			return pvfs_setpathinfo_setup_retry(pvfs->ntvfs, req, info, lck, status);
+		}
+		NT_STATUS_NOT_OK_RETURN(status);
+
+		newstats.st.st_size = info->end_of_file_info.in.size;
+		break;
+
+	case RAW_SFILEINFO_MODE_INFORMATION:
+		if (info->mode_information.in.mode != 0 &&
+		    info->mode_information.in.mode != 2 &&
+		    info->mode_information.in.mode != 4 &&
+		    info->mode_information.in.mode != 6) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		return NT_STATUS_OK;
+
+	case RAW_SFILEINFO_RENAME_INFORMATION:
+	case RAW_SFILEINFO_RENAME_INFORMATION_SMB2:
+		status = pvfs_locking_key(name, name, &odb_locking_key);
+		NT_STATUS_NOT_OK_RETURN(status);
+		status = pvfs_setfileinfo_rename(pvfs, req, name, -1,
+						 &odb_locking_key, info);
+		NT_STATUS_NOT_OK_RETURN(status);
+		return NT_STATUS_OK;
+
+	case RAW_SFILEINFO_DISPOSITION_INFO:
+	case RAW_SFILEINFO_DISPOSITION_INFORMATION:
+	case RAW_SFILEINFO_POSITION_INFORMATION:
+		return NT_STATUS_OK;
+
+	default:
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	/* possibly change the file size */
+	if (newstats.st.st_size != name->st.st_size) {
+		if (name->stream_name) {
+			status = pvfs_stream_truncate(pvfs, name, -1, newstats.st.st_size);
+			if (!NT_STATUS_IS_OK(status)) {
+				return status;
+			}
+		} else if (truncate(name->full_name, newstats.st.st_size) == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+		change_mask |= FILE_NOTIFY_CHANGE_SIZE | FILE_NOTIFY_CHANGE_ATTRIBUTES;
+	}
+
+	/* possibly change the file timestamps */
+	if (newstats.dos.create_time != name->dos.create_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_CREATION;
+	}
+	if (newstats.dos.access_time != name->dos.access_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_LAST_ACCESS;
+	}
+	if (newstats.dos.write_time != name->dos.write_time) {
+		change_mask |= FILE_NOTIFY_CHANGE_LAST_WRITE;
+	}
+	if ((change_mask & FILE_NOTIFY_CHANGE_LAST_ACCESS) ||
+	    (change_mask & FILE_NOTIFY_CHANGE_LAST_WRITE)) {
+		struct timeval tv[2];
+
+		nttime_to_timeval(&tv[0], newstats.dos.access_time);
+		nttime_to_timeval(&tv[1], newstats.dos.write_time);
+
+		if (!timeval_is_zero(&tv[0]) || !timeval_is_zero(&tv[1])) {
+			if (utimes(name->full_name, tv) == -1) {
+				DEBUG(0,("pvfs_setpathinfo: utimes() failed '%s' - %s\n",
+					 name->full_name, strerror(errno)));
+				return pvfs_map_errno(pvfs, errno);
+			}
+		}
+	}
+	if (change_mask & FILE_NOTIFY_CHANGE_LAST_WRITE) {
+		if (lck == NULL) {
+			DATA_BLOB lkey;
+			status = pvfs_locking_key(name, name, &lkey);
+			NT_STATUS_NOT_OK_RETURN(status);
+
+			lck = odb_lock(req, pvfs->odb_context, &lkey);
+			data_blob_free(&lkey);
+			if (lck == NULL) {
+				DEBUG(0,("Unable to lock opendb for write time update\n"));
+				return NT_STATUS_INTERNAL_ERROR;
+			}
+		}
+
+		status = odb_set_write_time(lck, newstats.dos.write_time, true);
+		if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+			/* it could be that nobody has opened the file */
+		} else if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(0,("Unable to update write time: %s\n",
+				nt_errstr(status)));
+			return status;
+		}
+	}
+
+	/* possibly change the attribute */
+	newstats.dos.attrib |= (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY);
+	if (newstats.dos.attrib != name->dos.attrib) {
+		mode_t mode = pvfs_fileperms(pvfs, newstats.dos.attrib);
+		if (pvfs_sys_chmod(pvfs, name->full_name, mode, name->allow_override) == -1) {
+			return pvfs_map_errno(pvfs, errno);
+		}
+		change_mask |= FILE_NOTIFY_CHANGE_ATTRIBUTES;
+	}
+
+	*name = newstats;
+
+	if (change_mask != 0) {
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_MODIFIED, 
+			       change_mask,
+			       name->full_name);
+	}
+
+	return pvfs_dosattrib_save(pvfs, name, -1);
+}
+
diff --git a/source4/ntvfs/posix/pvfs_shortname.c b/source4/ntvfs/posix/pvfs_shortname.c
new file mode 100644
index 0000000..9e3cf5f
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_shortname.c
@@ -0,0 +1,699 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - 8.3 name routines
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/locale.h"
+#include "vfs_posix.h"
+#include "param/param.h"
+
+#undef strcasecmp
+
+/*
+  this mangling scheme uses the following format
+
+  Annnn~n.AAA
+
+  where nnnnn is a base 36 hash, and A represents characters from the original string
+
+  The hash is taken of the leading part of the long filename, in uppercase
+
+  for simplicity, we only allow ascii characters in 8.3 names
+*/
+
+/*
+  ===============================================================================
+  NOTE NOTE NOTE!!!
+
+  This file deliberately uses non-multibyte string functions in many places. This
+  is *not* a mistake. This code is multi-byte safe, but it gets this property
+  through some very subtle knowledge of the way multi-byte strings are encoded 
+  and the fact that this mangling algorithm only supports ascii characters in
+  8.3 names.
+
+  please don't convert this file to use the *_m() functions!!
+  ===============================================================================
+*/
+
+
+#if 1
+#define M_DEBUG(level, x) DEBUG(level, x)
+#else
+#define M_DEBUG(level, x)
+#endif
+
+/* these flags are used to mark characters in as having particular
+   properties */
+#define FLAG_BASECHAR 1
+#define FLAG_ASCII 2
+#define FLAG_ILLEGAL 4
+#define FLAG_WILDCARD 8
+
+/* the "possible" flags are used as a fast way to find possible DOS
+   reserved filenames */
+#define FLAG_POSSIBLE1 16
+#define FLAG_POSSIBLE2 32
+#define FLAG_POSSIBLE3 64
+#define FLAG_POSSIBLE4 128
+
+#define DEFAULT_MANGLE_PREFIX 4
+
+#define MANGLE_BASECHARS "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+#define FLAG_CHECK(c, flag) (ctx->char_flags[(uint8_t)(c)] & (flag))
+
+static const char *reserved_names[] = 
+{ "AUX", "CON",
+  "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
+  "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9",
+  "NUL", "PRN", NULL };
+
+
+struct pvfs_mangle_context {
+	uint8_t char_flags[256];
+	/*
+	  this determines how many characters are used from the original
+	  filename in the 8.3 mangled name. A larger value leads to a weaker
+	  hash and more collisions.  The largest possible value is 6.
+	*/
+	int mangle_prefix;
+	uint32_t mangle_modulus;
+
+	/* we will use a very simple direct mapped prefix cache. The big
+	   advantage of this cache structure is speed and low memory usage 
+
+	   The cache is indexed by the low-order bits of the hash, and confirmed by
+	   hashing the resulting cache entry to match the known hash
+	*/
+	uint32_t cache_size;
+	char **prefix_cache;
+	uint32_t *prefix_cache_hashes;
+
+	/* this is used to reverse the base 36 mapping */
+	unsigned char base_reverse[256];
+};
+
+
+/* 
+   hash a string of the specified length. The string does not need to be
+   null terminated 
+
+   this hash needs to be fast with a low collision rate (what hash doesn't?)
+*/
+static uint32_t mangle_hash(struct pvfs_mangle_context *ctx,
+			    const char *key, size_t length)
+{
+	return pvfs_name_hash(key, length) % ctx->mangle_modulus;
+}
+
+/*
+  insert an entry into the prefix cache. The string might not be null
+  terminated */
+static void cache_insert(struct pvfs_mangle_context *ctx,
+			 const char *prefix, int length, uint32_t hash)
+{
+	int i = hash % ctx->cache_size;
+
+	if (ctx->prefix_cache[i]) {
+		talloc_free(ctx->prefix_cache[i]);
+	}
+
+	ctx->prefix_cache[i] = talloc_strndup(ctx->prefix_cache, prefix, length);
+	ctx->prefix_cache_hashes[i] = hash;
+}
+
+/*
+  lookup an entry in the prefix cache. Return NULL if not found.
+*/
+static const char *cache_lookup(struct pvfs_mangle_context *ctx, uint32_t hash)
+{
+	int i = hash % ctx->cache_size;
+
+
+	if (!ctx->prefix_cache[i] || hash != ctx->prefix_cache_hashes[i]) {
+		return NULL;
+	}
+
+	/* yep, it matched */
+	return ctx->prefix_cache[i];
+}
+
+
+/* 
+   determine if a string is possibly in a mangled format, ignoring
+   case 
+
+   In this algorithm, mangled names use only pure ascii characters (no
+   multi-byte) so we can avoid doing a UCS2 conversion 
+ */
+static bool is_mangled_component(struct pvfs_mangle_context *ctx,
+				 const char *name, size_t len)
+{
+	unsigned int i;
+
+	M_DEBUG(10,("is_mangled_component %s (len %u) ?\n", name, (unsigned int)len));
+
+	/* check the length */
+	if (len > 12 || len < 8)
+		return false;
+
+	/* the best distinguishing characteristic is the ~ */
+	if (name[6] != '~')
+		return false;
+
+	/* check extension */
+	if (len > 8) {
+		if (name[8] != '.')
+			return false;
+		for (i=9; name[i] && i < len; i++) {
+			if (! FLAG_CHECK(name[i], FLAG_ASCII)) {
+				return false;
+			}
+		}
+	}
+	
+	/* check lead characters */
+	for (i=0;i<ctx->mangle_prefix;i++) {
+		if (! FLAG_CHECK(name[i], FLAG_ASCII)) {
+			return false;
+		}
+	}
+	
+	/* check rest of hash */
+	if (! FLAG_CHECK(name[7], FLAG_BASECHAR)) {
+		return false;
+	}
+	for (i=ctx->mangle_prefix;i<6;i++) {
+		if (! FLAG_CHECK(name[i], FLAG_BASECHAR)) {
+			return false;
+		}
+	}
+
+	M_DEBUG(10,("is_mangled_component %s (len %u) -> yes\n", name, (unsigned int)len));
+
+	return true;
+}
+
+
+
+/* 
+   determine if a string is possibly in a mangled format, ignoring
+   case 
+
+   In this algorithm, mangled names use only pure ascii characters (no
+   multi-byte) so we can avoid doing a UCS2 conversion 
+
+   NOTE! This interface must be able to handle a path with unix
+   directory separators. It should return true if any component is
+   mangled
+ */
+static bool is_mangled(struct pvfs_mangle_context *ctx, const char *name)
+{
+	const char *p;
+	const char *s;
+
+	M_DEBUG(10,("is_mangled %s ?\n", name));
+
+	for (s=name; (p=strchr(s, '/')); s=p+1) {
+		if (is_mangled_component(ctx, s, PTR_DIFF(p, s))) {
+			return true;
+		}
+	}
+	
+	/* and the last part ... */
+	return is_mangled_component(ctx, s, strlen(s));
+}
+
+
+/* 
+   see if a filename is an allowable 8.3 name.
+
+   we are only going to allow ascii characters in 8.3 names, as this
+   simplifies things greatly (it means that we know the string won't
+   get larger when converted from UNIX to DOS formats)
+*/
+static bool is_8_3(struct pvfs_mangle_context *ctx,
+		   const char *name, bool check_case, bool allow_wildcards)
+{
+	int len, i;
+	char *dot_p;
+
+	/* as a special case, the names '.' and '..' are allowable 8.3 names */
+	if (name[0] == '.') {
+		if (!name[1] || (name[1] == '.' && !name[2])) {
+			return true;
+		}
+	}
+
+	/* the simplest test is on the overall length of the
+	 filename. Note that we deliberately use the ascii string
+	 length (not the multi-byte one) as it is faster, and gives us
+	 the result we need in this case. Using strlen_m would not
+	 only be slower, it would be incorrect */
+	len = strlen(name);
+	if (len > 12)
+		return false;
+
+	/* find the '.'. Note that once again we use the non-multibyte
+           function */
+	dot_p = strchr(name, '.');
+
+	if (!dot_p) {
+		/* if the name doesn't contain a '.' then its length
+                   must be less than 8 */
+		if (len > 8) {
+			return false;
+		}
+	} else {
+		int prefix_len, suffix_len;
+
+		/* if it does contain a dot then the prefix must be <=
+		   8 and the suffix <= 3 in length */
+		prefix_len = PTR_DIFF(dot_p, name);
+		suffix_len = len - (prefix_len+1);
+
+		if (prefix_len > 8 || suffix_len > 3 || suffix_len == 0) {
+			return false;
+		}
+
+		/* a 8.3 name cannot contain more than 1 '.' */
+		if (strchr(dot_p+1, '.')) {
+			return false;
+		}
+	}
+
+	/* the length are all OK. Now check to see if the characters themselves are OK */
+	for (i=0; name[i]; i++) {
+		/* note that we may allow wildcard petterns! */
+		if (!FLAG_CHECK(name[i], FLAG_ASCII|(allow_wildcards ? FLAG_WILDCARD : 0)) && 
+		    name[i] != '.') {
+			return false;
+		}
+	}
+
+	/* it is a good 8.3 name */
+	return true;
+}
+
+
+/*
+  try to find a 8.3 name in the cache, and if found then
+  return the original long name. 
+*/
+static char *check_cache(struct pvfs_mangle_context *ctx, 
+			 TALLOC_CTX *mem_ctx, const char *name)
+{
+	uint32_t hash, multiplier;
+	unsigned int i;
+	const char *prefix;
+	char extension[4];
+
+	/* make sure that this is a mangled name from this cache */
+	if (!is_mangled(ctx, name)) {
+		M_DEBUG(10,("check_cache: %s -> not mangled\n", name));
+		return NULL;
+	}
+
+	/* we need to extract the hash from the 8.3 name */
+	hash = ctx->base_reverse[(unsigned char)name[7]];
+	for (multiplier=36, i=5;i>=ctx->mangle_prefix;i--) {
+		uint32_t v = ctx->base_reverse[(unsigned char)name[i]];
+		hash += multiplier * v;
+		multiplier *= 36;
+	}
+
+	/* now look in the prefix cache for that hash */
+	prefix = cache_lookup(ctx, hash);
+	if (!prefix) {
+		M_DEBUG(10,("check_cache: %s -> %08X -> not found\n", name, hash));
+		return NULL;
+	}
+
+	/* we found it - construct the full name */
+	if (name[8] == '.') {
+		strncpy(extension, name+9, 3);
+		extension[3] = 0;
+	} else {
+		extension[0] = 0;
+	}
+
+	if (extension[0]) {
+		return talloc_asprintf(mem_ctx, "%s.%s", prefix, extension);
+	}
+
+	return talloc_strdup(mem_ctx, prefix);
+}
+
+
+/*
+  look for a DOS reserved name
+*/
+static bool is_reserved_name(struct pvfs_mangle_context *ctx, const char *name)
+{
+	if (FLAG_CHECK(name[0], FLAG_POSSIBLE1) &&
+	    FLAG_CHECK(name[1], FLAG_POSSIBLE2) &&
+	    FLAG_CHECK(name[2], FLAG_POSSIBLE3) &&
+	    FLAG_CHECK(name[3], FLAG_POSSIBLE4)) {
+		/* a likely match, scan the lot */
+		int i;
+		for (i=0; reserved_names[i]; i++) {
+			if (strcasecmp(name, reserved_names[i]) == 0) {
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+
+/*
+ See if a filename is a legal long filename.
+ A filename ending in a '.' is not legal unless it's "." or "..". JRA.
+*/
+static bool is_legal_name(struct pvfs_mangle_context *ctx, const char *name)
+{
+	while (*name) {
+		size_t c_size;
+		codepoint_t c = next_codepoint(name, &c_size);
+		if (c == INVALID_CODEPOINT) {
+			return false;
+		}
+		/* all high chars are OK */
+		if (c >= 128) {
+			name += c_size;
+			continue;
+		}
+		if (FLAG_CHECK(c, FLAG_ILLEGAL)) {
+			return false;
+		}
+		name += c_size;
+	}
+
+	return true;
+}
+
+/*
+  the main forward mapping function, which converts a long filename to 
+  a 8.3 name
+
+  if need83 is not set then we only do the mangling if the name is illegal
+  as a long name
+
+  if cache83 is not set then we don't cache the result
+
+  return NULL if we don't need to do any conversion
+*/
+static char *name_map(struct pvfs_mangle_context *ctx,
+		      const char *name, bool need83, bool cache83)
+{
+	char *dot_p;
+	char lead_chars[7];
+	char extension[4];
+	unsigned int extension_length, i;
+	unsigned int prefix_len;
+	uint32_t hash, v;
+	char *new_name;
+	const char *basechars = MANGLE_BASECHARS;
+
+	/* reserved names are handled specially */
+	if (!is_reserved_name(ctx, name)) {
+		/* if the name is already a valid 8.3 name then we don't need to 
+		   do anything */
+		if (is_8_3(ctx, name, false, false)) {
+			return NULL;
+		}
+
+		/* if the caller doesn't strictly need 8.3 then just check for illegal 
+		   filenames */
+		if (!need83 && is_legal_name(ctx, name)) {
+			return NULL;
+		}
+	}
+
+	/* find the '.' if any */
+	dot_p = strrchr(name, '.');
+
+	if (dot_p) {
+		/* if the extension contains any illegal characters or
+		   is too long or zero length then we treat it as part
+		   of the prefix */
+		for (i=0; i<4 && dot_p[i+1]; i++) {
+			if (! FLAG_CHECK(dot_p[i+1], FLAG_ASCII)) {
+				dot_p = NULL;
+				break;
+			}
+		}
+		if (i == 0 || i == 4) dot_p = NULL;
+	}
+
+	/* the leading characters in the mangled name is taken from
+	   the first characters of the name, if they are ascii otherwise
+	   '_' is used
+	*/
+	for (i=0;i<ctx->mangle_prefix && name[i];i++) {
+		lead_chars[i] = name[i];
+		if (! FLAG_CHECK(lead_chars[i], FLAG_ASCII)) {
+			lead_chars[i] = '_';
+		}
+		lead_chars[i] = toupper((unsigned char)lead_chars[i]);
+	}
+	for (;i<ctx->mangle_prefix;i++) {
+		lead_chars[i] = '_';
+	}
+
+	/* the prefix is anything up to the first dot */
+	if (dot_p) {
+		prefix_len = PTR_DIFF(dot_p, name);
+	} else {
+		prefix_len = strlen(name);
+	}
+
+	/* the extension of the mangled name is taken from the first 3
+	   ascii chars after the dot */
+	extension_length = 0;
+	if (dot_p) {
+		for (i=1; extension_length < 3 && dot_p[i]; i++) {
+			unsigned char c = dot_p[i];
+			if (FLAG_CHECK(c, FLAG_ASCII)) {
+				extension[extension_length++] = toupper(c);
+			}
+		}
+	}
+	   
+	/* find the hash for this prefix */
+	v = hash = mangle_hash(ctx, name, prefix_len);
+
+	new_name = talloc_array(ctx, char, 13);
+	if (new_name == NULL) {
+		return NULL;
+	}
+
+	/* now form the mangled name. */
+	for (i=0;i<ctx->mangle_prefix;i++) {
+		new_name[i] = lead_chars[i];
+	}
+	new_name[7] = basechars[v % 36];
+	new_name[6] = '~';	
+	for (i=5; i>=ctx->mangle_prefix; i--) {
+		v = v / 36;
+		new_name[i] = basechars[v % 36];
+	}
+
+	/* add the extension */
+	if (extension_length) {
+		new_name[8] = '.';
+		memcpy(&new_name[9], extension, extension_length);
+		new_name[9+extension_length] = 0;
+	} else {
+		new_name[8] = 0;
+	}
+
+	if (cache83) {
+		/* put it in the cache */
+		cache_insert(ctx, name, prefix_len, hash);
+	}
+
+	M_DEBUG(10,("name_map: %s -> %08X -> %s (cache=%d)\n", 
+		   name, hash, new_name, cache83));
+
+	return new_name;
+}
+
+
+/* initialise the flags table 
+
+  we allow only a very restricted set of characters as 'ascii' in this
+  mangling backend. This isn't a significant problem as modern clients
+  use the 'long' filenames anyway, and those don't have these
+  restrictions. 
+*/
+static void init_tables(struct pvfs_mangle_context *ctx)
+{
+	const char *basechars = MANGLE_BASECHARS;
+	int i;
+	/* the list of reserved dos names - all of these are illegal */
+
+	ZERO_STRUCT(ctx->char_flags);
+
+	for (i=1;i<128;i++) {
+		if ((i >= '0' && i <= '9') || 
+		    (i >= 'a' && i <= 'z') || 
+		    (i >= 'A' && i <= 'Z')) {
+			ctx->char_flags[i] |=  (FLAG_ASCII | FLAG_BASECHAR);
+		}
+		if (strchr("_-$~", i)) {
+			ctx->char_flags[i] |= FLAG_ASCII;
+		}
+
+		if (strchr("*\\/?<>|\":", i)) {
+			ctx->char_flags[i] |= FLAG_ILLEGAL;
+		}
+
+		if (strchr("*?\"<>", i)) {
+			ctx->char_flags[i] |= FLAG_WILDCARD;
+		}
+	}
+
+	ZERO_STRUCT(ctx->base_reverse);
+	for (i=0;i<36;i++) {
+		ctx->base_reverse[(uint8_t)basechars[i]] = i;
+	}	
+
+	/* fill in the reserved names flags. These are used as a very
+	   fast filter for finding possible DOS reserved filenames */
+	for (i=0; reserved_names[i]; i++) {
+		unsigned char c1, c2, c3, c4;
+
+		c1 = (unsigned char)reserved_names[i][0];
+		c2 = (unsigned char)reserved_names[i][1];
+		c3 = (unsigned char)reserved_names[i][2];
+		c4 = (unsigned char)reserved_names[i][3];
+
+		ctx->char_flags[c1] |= FLAG_POSSIBLE1;
+		ctx->char_flags[c2] |= FLAG_POSSIBLE2;
+		ctx->char_flags[c3] |= FLAG_POSSIBLE3;
+		ctx->char_flags[c4] |= FLAG_POSSIBLE4;
+		ctx->char_flags[tolower(c1)] |= FLAG_POSSIBLE1;
+		ctx->char_flags[tolower(c2)] |= FLAG_POSSIBLE2;
+		ctx->char_flags[tolower(c3)] |= FLAG_POSSIBLE3;
+		ctx->char_flags[tolower(c4)] |= FLAG_POSSIBLE4;
+
+		ctx->char_flags[(unsigned char)'.'] |= FLAG_POSSIBLE4;
+	}
+
+	ctx->mangle_modulus = 1;
+	for (i=0;i<(7-ctx->mangle_prefix);i++) {
+		ctx->mangle_modulus *= 36;
+	}
+}
+
+/* 
+   initialise the mangling code 
+ */
+NTSTATUS pvfs_mangle_init(struct pvfs_state *pvfs)
+{
+	struct pvfs_mangle_context *ctx;
+
+	ctx = talloc(pvfs, struct pvfs_mangle_context);
+	if (ctx == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* by default have a max of 512 entries in the cache. */
+	ctx->cache_size = lpcfg_parm_int(pvfs->ntvfs->ctx->lp_ctx, NULL, "mangle", "cachesize", 512);
+
+	ctx->prefix_cache = talloc_array(ctx, char *, ctx->cache_size);
+	if (ctx->prefix_cache == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	ctx->prefix_cache_hashes = talloc_array(ctx, uint32_t, ctx->cache_size);
+	if (ctx->prefix_cache_hashes == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	memset(ctx->prefix_cache, 0, sizeof(char *) * ctx->cache_size);
+	memset(ctx->prefix_cache_hashes, 0, sizeof(uint32_t) * ctx->cache_size);
+
+	ctx->mangle_prefix = lpcfg_parm_int(pvfs->ntvfs->ctx->lp_ctx, NULL, "mangle", "prefix", -1);
+	if (ctx->mangle_prefix < 0 || ctx->mangle_prefix > 6) {
+		ctx->mangle_prefix = DEFAULT_MANGLE_PREFIX;
+	}
+
+	init_tables(ctx);
+
+	pvfs->mangle_ctx = ctx;
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  return the short name for a component of a full name
+*/
+char *pvfs_short_name_component(struct pvfs_state *pvfs, const char *name)
+{
+	return name_map(pvfs->mangle_ctx, name, true, true);
+}
+
+
+/*
+  return the short name for a given entry in a directory
+*/
+const char *pvfs_short_name(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx, 
+			    struct pvfs_filename *name)
+{
+	char *p = strrchr(name->full_name, '/');
+	char *ret = pvfs_short_name_component(pvfs, p+1);
+	if (ret == NULL) {
+		return p+1;
+	}
+	talloc_steal(mem_ctx, ret);
+	return ret;
+}
+
+/*
+  lookup a mangled name, returning the original long name if present
+  in the cache
+*/
+char *pvfs_mangled_lookup(struct pvfs_state *pvfs, TALLOC_CTX *mem_ctx, 
+			  const char *name)
+{
+	return check_cache(pvfs->mangle_ctx, mem_ctx, name);
+}
+
+
+/*
+  look for a DOS reserved name
+*/
+bool pvfs_is_reserved_name(struct pvfs_state *pvfs, const char *name)
+{
+	return is_reserved_name(pvfs->mangle_ctx, name);
+}
+
+
+/*
+  see if a component of a filename could be a mangled name from our
+  mangling code
+*/
+bool pvfs_is_mangled_component(struct pvfs_state *pvfs, const char *name)
+{
+	return is_mangled_component(pvfs->mangle_ctx, name, strlen(name));
+}
diff --git a/source4/ntvfs/posix/pvfs_streams.c b/source4/ntvfs/posix/pvfs_streams.c
new file mode 100644
index 0000000..cacd8c1
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_streams.c
@@ -0,0 +1,556 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - alternate data streams
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/xattr.h"
+
+/*
+  normalise a stream name, removing a :$DATA suffix if there is one 
+  Note: this returns the existing pointer to the name if the name does 
+        not need normalising
+ */
+static const char *stream_name_normalise(TALLOC_CTX *ctx, const char *name)
+{
+	const char *c = strchr_m(name, ':');
+	if (c == NULL || strcasecmp_m(c, ":$DATA") != 0) {
+		return name;
+	}
+	return talloc_strndup(ctx, name, c-name);
+}
+
+/*
+  compare two stream names, taking account of the default $DATA extension
+ */
+static int stream_name_cmp(const char *name1, const char *name2)
+{
+	const char *c1, *c2;
+	int l1, l2, ret;
+	c1 = strchr_m(name1, ':');
+	c2 = strchr_m(name2, ':');
+	
+	/* check the first part is the same */
+	l1 = c1?(c1 - name1):strlen(name1);
+	l2 = c2?(c2 - name2):strlen(name2);
+	if (l1 != l2) {
+		return l1 - l2;
+	}
+	ret = strncasecmp_m(name1, name2, l1);
+	if (ret != 0) {
+		return ret;
+	}
+
+	/* the first parts are the same, check the suffix */
+	if (c1 && c2) {
+		return strcasecmp_m(c1, c2);
+	}
+
+	if (c1) {
+		return strcasecmp_m(c1, ":$DATA");
+	}
+	if (c2) {
+		return strcasecmp_m(c2, ":$DATA");
+	}
+
+	/* neither names have a suffix */
+	return 0;
+}
+
+
+/*
+  return the list of file streams for RAW_FILEINFO_STREAM_INFORMATION
+*/
+NTSTATUS pvfs_stream_information(struct pvfs_state *pvfs, 
+				 TALLOC_CTX *mem_ctx,
+				 struct pvfs_filename *name, int fd, 
+				 struct stream_information *info)
+{
+	struct xattr_DosStreams *streams;
+	int i;
+	NTSTATUS status;
+
+	/* directories don't have streams */
+	if (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
+		info->num_streams = 0;
+		info->streams = NULL;
+		return NT_STATUS_OK;
+	}
+
+	streams = talloc(mem_ctx, struct xattr_DosStreams);
+	if (streams == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_streams_load(pvfs, name, fd, streams);
+	if (!NT_STATUS_IS_OK(status)) {
+		ZERO_STRUCTP(streams);
+	}
+
+	info->num_streams = streams->num_streams+1;
+	info->streams = talloc_array(mem_ctx, struct stream_struct, info->num_streams);
+	if (!info->streams) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	info->streams[0].size          = name->st.st_size;
+	info->streams[0].alloc_size    = name->dos.alloc_size;
+	info->streams[0].stream_name.s = talloc_strdup(info->streams, "::$DATA");
+
+	for (i=0;i<streams->num_streams;i++) {
+		info->streams[i+1].size          = streams->streams[i].size;
+		info->streams[i+1].alloc_size    = streams->streams[i].alloc_size;
+		if (strchr(streams->streams[i].name, ':') == NULL) {
+			info->streams[i+1].stream_name.s = talloc_asprintf(streams->streams, 
+									   ":%s:$DATA",
+									   streams->streams[i].name);
+		} else {
+			info->streams[i+1].stream_name.s = talloc_strdup(streams->streams, 
+									 streams->streams[i].name);
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  fill in the stream information for a name
+*/
+NTSTATUS pvfs_stream_info(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd)
+{
+	struct xattr_DosStreams *streams;
+	int i;
+	NTSTATUS status;
+
+	/* the NULL stream always exists */
+	if (name->stream_name == NULL) {
+		name->stream_exists = true;
+		return NT_STATUS_OK;
+	}
+
+	streams = talloc(name, struct xattr_DosStreams);
+	if (streams == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_streams_load(pvfs, name, fd, streams);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(streams);
+		return status;
+	}
+
+	for (i=0;i<streams->num_streams;i++) {
+		struct xattr_DosStream *s = &streams->streams[i];
+		if (stream_name_cmp(s->name, name->stream_name) == 0) {
+			name->dos.alloc_size = pvfs_round_alloc_size(pvfs, s->alloc_size);
+			name->st.st_size     = s->size;
+			name->stream_exists = true;
+			talloc_free(streams);
+			return NT_STATUS_OK;
+		}
+	}
+
+	talloc_free(streams);
+
+	name->dos.alloc_size = 0;
+	name->st.st_size     = 0;
+	name->stream_exists = false;
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  update size information for a stream
+*/
+static NTSTATUS pvfs_stream_update_size(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+					off_t size)
+{
+	struct xattr_DosStreams *streams;
+	int i;
+	NTSTATUS status;
+
+	streams = talloc(name, struct xattr_DosStreams);
+	if (streams == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_streams_load(pvfs, name, fd, streams);
+	if (!NT_STATUS_IS_OK(status)) {
+		ZERO_STRUCTP(streams);
+	}
+
+	for (i=0;i<streams->num_streams;i++) {
+		struct xattr_DosStream *s = &streams->streams[i];
+		if (stream_name_cmp(s->name, name->stream_name) == 0) {
+			s->size       = size;
+			s->alloc_size = pvfs_round_alloc_size(pvfs, size);
+			break;
+		}
+	}
+
+	if (i == streams->num_streams) {
+		struct xattr_DosStream *s;
+		streams->streams = talloc_realloc(streams, streams->streams, 
+						    struct xattr_DosStream,
+						    streams->num_streams+1);
+		if (streams->streams == NULL) {
+			talloc_free(streams);
+			return NT_STATUS_NO_MEMORY;
+		}
+		streams->num_streams++;
+		s = &streams->streams[i];
+		
+		s->flags      = XATTR_STREAM_FLAG_INTERNAL;
+		s->size       = size;
+		s->alloc_size = pvfs_round_alloc_size(pvfs, size);
+		s->name       = stream_name_normalise(streams, name->stream_name);
+		if (s->name == NULL) {
+			talloc_free(streams);
+			return NT_STATUS_NO_MEMORY;
+		}
+	}
+
+	status = pvfs_streams_save(pvfs, name, fd, streams);
+	talloc_free(streams);
+
+	return status;
+}
+
+
+/*
+  rename a stream
+*/
+NTSTATUS pvfs_stream_rename(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+			    const char *new_name, bool overwrite)
+{
+	struct xattr_DosStreams *streams;
+	int i, found_old, found_new;
+	NTSTATUS status;
+
+	streams = talloc(name, struct xattr_DosStreams);
+	if (streams == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	new_name = stream_name_normalise(streams, new_name);
+	if (new_name == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_streams_load(pvfs, name, fd, streams);
+	if (!NT_STATUS_IS_OK(status)) {
+		ZERO_STRUCTP(streams);
+	}
+
+	/* the default stream always exists */
+	if (strcmp(new_name, "") == 0 ||
+	    strcasecmp_m(new_name, ":$DATA") == 0) {
+		return NT_STATUS_OBJECT_NAME_COLLISION;		
+	}
+
+	/* try to find the old/new names in the list */
+	found_old = found_new = -1;
+	for (i=0;i<streams->num_streams;i++) {
+		struct xattr_DosStream *s = &streams->streams[i];
+		if (stream_name_cmp(s->name, new_name) == 0) {
+			found_new = i;
+		}
+		if (stream_name_cmp(s->name, name->stream_name) == 0) {
+			found_old = i;
+		}
+	}
+
+	if (found_old == -1) {
+		talloc_free(streams);
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;		
+	}
+
+	if (found_new == -1) {
+		/* a simple rename */
+		struct xattr_DosStream *s = &streams->streams[found_old];
+		s->name = new_name;
+	} else {
+		if (!overwrite) {
+			return NT_STATUS_OBJECT_NAME_COLLISION;
+		}
+		if (found_old != found_new) {
+			/* remove the old one and replace with the new one */
+			streams->streams[found_old].name = new_name;
+			memmove(&streams->streams[found_new],
+				&streams->streams[found_new+1],
+				sizeof(streams->streams[0]) *
+				(streams->num_streams - (found_new+1)));
+			streams->num_streams--;
+		}
+	}
+
+	status = pvfs_streams_save(pvfs, name, fd, streams);
+
+	if (NT_STATUS_IS_OK(status)) {
+
+		/* update the in-memory copy of the name of the open file */
+		talloc_free(name->stream_name);
+		name->stream_name = talloc_strdup(name, new_name);
+
+		talloc_free(streams);
+	}
+
+	return status;
+}
+
+
+/*
+  create the xattr for a alternate data stream
+*/
+NTSTATUS pvfs_stream_create(struct pvfs_state *pvfs, 
+			    struct pvfs_filename *name, 
+			    int fd)
+{
+	NTSTATUS status;
+	status = pvfs_xattr_create(pvfs, name->full_name, fd, 
+				   XATTR_DOSSTREAM_PREFIX, name->stream_name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	return pvfs_stream_update_size(pvfs, name, fd, 0);
+}
+
+/*
+  delete the xattr for a alternate data stream
+*/
+NTSTATUS pvfs_stream_delete(struct pvfs_state *pvfs, 
+			    struct pvfs_filename *name, 
+			    int fd)
+{
+	NTSTATUS status;
+	struct xattr_DosStreams *streams;
+	int i;
+
+	status = pvfs_xattr_delete(pvfs, name->full_name, fd, 
+				   XATTR_DOSSTREAM_PREFIX, name->stream_name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	streams = talloc(name, struct xattr_DosStreams);
+	if (streams == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	status = pvfs_streams_load(pvfs, name, fd, streams);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(streams);
+		return status;
+	}
+
+	for (i=0;i<streams->num_streams;i++) {
+		struct xattr_DosStream *s = &streams->streams[i];
+		if (stream_name_cmp(s->name, name->stream_name) == 0) {
+			memmove(s, s+1, (streams->num_streams - (i+1)) * sizeof(*s));
+			streams->num_streams--;
+			break;
+		}
+	}
+
+	status = pvfs_streams_save(pvfs, name, fd, streams);
+	talloc_free(streams);
+
+	return status;
+}
+
+/* 
+   load a stream into a blob
+*/
+static NTSTATUS pvfs_stream_load(struct pvfs_state *pvfs,
+				 TALLOC_CTX *mem_ctx,
+				 struct pvfs_filename *name,
+				 int fd,
+				 size_t estimated_size,
+				 DATA_BLOB *blob)
+{
+	NTSTATUS status;
+
+	status = pvfs_xattr_load(pvfs, mem_ctx, name->full_name, fd, 
+				 XATTR_DOSSTREAM_PREFIX,
+				 name->stream_name, estimated_size, blob);
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		/* try with a case insensitive match */
+		struct xattr_DosStreams *streams;
+		int i;
+
+		streams = talloc(mem_ctx, struct xattr_DosStreams);
+		if (streams == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		
+		status = pvfs_streams_load(pvfs, name, fd, streams);
+		if (!NT_STATUS_IS_OK(status)) {
+			talloc_free(streams);
+			return NT_STATUS_NOT_FOUND;
+		}
+		for (i=0;i<streams->num_streams;i++) {
+			struct xattr_DosStream *s = &streams->streams[i];
+			if (stream_name_cmp(s->name, name->stream_name) == 0) {
+				status = pvfs_xattr_load(pvfs, mem_ctx, name->full_name, fd, 
+							 XATTR_DOSSTREAM_PREFIX,
+							 s->name, estimated_size, blob);
+				talloc_free(streams);
+				return status;
+			}
+		}
+		talloc_free(streams);
+		return NT_STATUS_NOT_FOUND;
+	}
+	
+	return status;
+}
+
+/*
+  the equvalent of pread() on a stream
+*/
+ssize_t pvfs_stream_read(struct pvfs_state *pvfs,
+			 struct pvfs_file_handle *h, void *data, size_t count, off_t offset)
+{
+	NTSTATUS status;
+	DATA_BLOB blob;
+	if (count == 0) {
+		return 0;
+	}
+	status = pvfs_stream_load(pvfs, h, h->name, h->fd, offset+count, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		errno = EIO;
+		return -1;
+	}
+	if (offset >= blob.length) {
+		data_blob_free(&blob);
+		return 0;
+	}
+	if (count > blob.length - offset) {
+		count = blob.length - offset;
+	}
+	memcpy(data, blob.data + offset, count);
+	data_blob_free(&blob);
+	return count;
+}
+
+
+/*
+  the equvalent of pwrite() on a stream
+*/
+ssize_t pvfs_stream_write(struct pvfs_state *pvfs,
+			  struct pvfs_file_handle *h, const void *data, size_t count, off_t offset)
+{
+	NTSTATUS status;
+	DATA_BLOB blob;
+	if (count == 0) {
+		return 0;
+	}
+
+	if (count+offset > XATTR_MAX_STREAM_SIZE) {
+		if (!pvfs->ea_db || count+offset > XATTR_MAX_STREAM_SIZE_TDB) {
+			errno = ENOSPC;
+			return -1;
+		}
+	}
+
+	/* we have to load the existing stream, then modify, then save */
+	status = pvfs_stream_load(pvfs, h, h->name, h->fd, offset+count, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		blob = data_blob(NULL, 0);
+	}
+	if (count+offset > blob.length) {
+		blob.data = talloc_realloc(blob.data, blob.data, uint8_t, count+offset);
+		if (blob.data == NULL) {
+			errno = ENOMEM;
+			return -1;
+		}
+		if (offset > blob.length) {
+			memset(blob.data+blob.length, 0, offset - blob.length);
+		}
+		blob.length = count+offset;
+	}
+	memcpy(blob.data + offset, data, count);
+
+	status = pvfs_xattr_save(pvfs, h->name->full_name, h->fd, XATTR_DOSSTREAM_PREFIX,
+				 h->name->stream_name, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		data_blob_free(&blob);
+		/* getting this error mapping right is probably
+		   not worth it */
+		errno = ENOSPC;
+		return -1;
+	}
+
+	status = pvfs_stream_update_size(pvfs, h->name, h->fd, blob.length);
+
+	data_blob_free(&blob);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		errno = EIO;
+		return -1;
+	}
+
+	return count;
+}
+
+/*
+  the equvalent of truncate() on a stream
+*/
+NTSTATUS pvfs_stream_truncate(struct pvfs_state *pvfs,
+			      struct pvfs_filename *name, int fd, off_t length)
+{
+	NTSTATUS status;
+	DATA_BLOB blob;
+
+	if (length > XATTR_MAX_STREAM_SIZE) {
+		if (!pvfs->ea_db || length > XATTR_MAX_STREAM_SIZE_TDB) {
+			return NT_STATUS_DISK_FULL;
+		}
+	}
+
+	/* we have to load the existing stream, then modify, then save */
+	status = pvfs_stream_load(pvfs, name, name, fd, length, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	if (length <= blob.length) {
+		blob.length = length;
+	} else if (length > blob.length) {
+		blob.data = talloc_realloc(blob.data, blob.data, uint8_t, length);
+		if (blob.data == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		memset(blob.data+blob.length, 0, length - blob.length);
+		blob.length = length;
+	}
+
+	status = pvfs_xattr_save(pvfs, name->full_name, fd, XATTR_DOSSTREAM_PREFIX,
+				 name->stream_name, &blob);
+
+	if (NT_STATUS_IS_OK(status)) {
+		status = pvfs_stream_update_size(pvfs, name, fd, blob.length);
+	}
+	data_blob_free(&blob);
+
+	return status;
+}
diff --git a/source4/ntvfs/posix/pvfs_sys.c b/source4/ntvfs/posix/pvfs_sys.c
new file mode 100644
index 0000000..f567046
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_sys.c
@@ -0,0 +1,662 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - pvfs_sys wrappers
+
+   Copyright (C) Andrew Tridgell 2010
+   Copyright (C) Andrew Bartlett 2010
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "../lib/util/unix_privs.h"
+
+/*
+  these wrapper functions must only be called when the appropriate ACL
+  has already been checked. The wrappers will override a EACCES result
+  by gaining root privileges if the 'pvfs:perm override' is set on the
+  share (it is enabled by default)
+
+  Careful use of O_NOFOLLOW and O_DIRECTORY is used to prevent
+  security attacks via symlinks
+ */
+
+
+struct pvfs_sys_ctx {
+	struct pvfs_state *pvfs;
+	void *privs;
+	const char *old_wd;
+	struct stat st_orig;
+};
+
+
+/*
+  we create PVFS_NOFOLLOW and PVFS_DIRECTORY as aliases for O_NOFOLLOW
+  and O_DIRECTORY on systems that have them. On systems that don't
+  have O_NOFOLLOW we are less safe, but the root override code is off
+  by default.
+ */
+#ifdef O_NOFOLLOW
+#define PVFS_NOFOLLOW O_NOFOLLOW
+#else
+#define PVFS_NOFOLLOW 0
+#endif
+#ifdef O_DIRECTORY
+#define PVFS_DIRECTORY O_DIRECTORY
+#else
+#define PVFS_DIRECTORY 0
+#endif
+
+/*
+  return to original directory when context is destroyed
+ */
+static int pvfs_sys_pushdir_destructor(struct pvfs_sys_ctx *ctx)
+{
+	struct stat st;
+
+	if (ctx->old_wd == NULL) {
+		return 0;
+	}
+
+	if (chdir(ctx->old_wd) != 0) {
+		smb_panic("Failed to restore working directory");
+	}
+	if (stat(".", &st) != 0) {
+		smb_panic("Failed to stat working directory");
+	}
+	if (st.st_ino != ctx->st_orig.st_ino ||
+	    st.st_dev != ctx->st_orig.st_dev) {
+		smb_panic("Working directory changed during call");
+	}
+
+	return 0;
+}
+
+
+/*
+  chdir() to the directory part of a pathname, but disallow any
+  component with a symlink
+
+  Note that we can't use O_NOFOLLOW on the whole path as that only
+  prevents links in the final component of the path
+ */
+static int pvfs_sys_chdir_nosymlink(struct pvfs_sys_ctx *ctx, const char *pathname)
+{
+	char *p, *path;
+	size_t base_len = strlen(ctx->pvfs->base_directory);
+
+	/* don't check for symlinks in the base directory of the share */
+	if (strncmp(ctx->pvfs->base_directory, pathname, base_len) == 0 &&
+	    pathname[base_len] == '/') {
+		if (chdir(ctx->pvfs->base_directory) != 0) {
+			return -1;
+		}
+		pathname += base_len + 1;
+	}
+
+	path = talloc_strdup(ctx, pathname);
+	if (path == NULL) {
+		return -1;
+	}
+	while ((p = strchr(path, '/'))) {
+		int fd;
+		struct stat st1, st2;
+		*p = 0;
+		fd = open(path, PVFS_NOFOLLOW | PVFS_DIRECTORY | O_RDONLY);
+		if (fd == -1) {
+			return -1;
+		}
+		if (chdir(path) != 0) {
+			close(fd);
+			return -1;
+		}
+		if (stat(".", &st1) != 0 ||
+		    fstat(fd, &st2) != 0) {
+			close(fd);
+			return -1;
+		}
+		close(fd);
+		if (st1.st_ino != st2.st_ino ||
+		    st1.st_dev != st2.st_dev) {
+			DEBUG(0,(__location__ ": Inode changed during chdir in '%s' - symlink attack?",
+				 pathname));
+			return -1;
+		}
+		path = p + 1;
+	}
+
+	return 0;
+}
+
+
+/*
+  become root, and change directory to the directory component of a
+  path. Return a talloc context which when freed will move us back
+  to the original directory, and return us to the original uid
+
+  change the pathname argument to contain just the base component of
+  the path
+
+  return NULL on error, which could include an attempt to subvert
+  security using symlink tricks
+ */
+static struct pvfs_sys_ctx *pvfs_sys_pushdir(struct pvfs_state *pvfs,
+					     const char **pathname)
+{
+	struct pvfs_sys_ctx *ctx;
+	char *cwd, *p, *dirname;
+	int ret;
+
+	ctx = talloc_zero(pvfs, struct pvfs_sys_ctx);
+	if (ctx == NULL) {
+		return NULL;
+	}
+	ctx->pvfs = pvfs;
+	ctx->privs = root_privileges();
+	if (ctx->privs == NULL) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	talloc_steal(ctx, ctx->privs);
+
+	if (!pathname) {
+		/* no pathname needed */
+		return ctx;
+	}
+
+	p = strrchr(*pathname, '/');
+	if (p == NULL) {
+		/* we don't need to change directory */
+		return ctx;
+	}
+
+	/* we keep the old st around, so we can tell that
+	   we have come back to the right directory */
+	if (stat(".", &ctx->st_orig) != 0) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	cwd = get_current_dir_name();
+	if (cwd == NULL) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	ctx->old_wd = talloc_strdup(ctx, cwd);
+	free(cwd);
+
+	if (ctx->old_wd == NULL) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	dirname = talloc_strndup(ctx, *pathname, (p - *pathname));
+	if (dirname == NULL) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	ret = pvfs_sys_chdir_nosymlink(ctx, *pathname);
+	if (ret == -1) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	talloc_set_destructor(ctx, pvfs_sys_pushdir_destructor);
+
+	/* return the basename as the filename that should be operated on */
+	(*pathname) = talloc_strdup(ctx, p+1);
+	if (! *pathname) {
+		talloc_free(ctx);
+		return NULL;
+	}
+
+	return ctx;
+}
+
+
+/*
+  chown a file that we created with a root privileges override
+ */
+static int pvfs_sys_fchown(struct pvfs_state *pvfs, struct pvfs_sys_ctx *ctx, int fd)
+{
+	return fchown(fd, root_privileges_original_uid(ctx->privs), -1);
+}
+
+/*
+  chown a directory that we created with a root privileges override
+ */
+static int pvfs_sys_chown(struct pvfs_state *pvfs, struct pvfs_sys_ctx *ctx, const char *name)
+{
+	/* to avoid symlink hacks, we need to use fchown() on a directory fd */
+	int ret, fd;
+	fd = open(name, PVFS_DIRECTORY | PVFS_NOFOLLOW | O_RDONLY);
+	if (fd == -1) {
+		return -1;
+	}
+	ret = pvfs_sys_fchown(pvfs, ctx, fd);
+	close(fd);
+	return ret;
+}
+
+
+/*
+  wrap open for system override
+*/
+int pvfs_sys_open(struct pvfs_state *pvfs, const char *filename, int flags, mode_t mode, bool allow_override)
+{
+	int fd, ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+	int retries = 5;
+
+	orig_errno = errno;
+
+	fd = open(filename, flags, mode);
+	if (fd != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return fd;
+	}
+
+	saved_errno = errno;
+	ctx = pvfs_sys_pushdir(pvfs, &filename);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	/* don't allow permission overrides to follow links */
+	flags |= PVFS_NOFOLLOW;
+
+	/*
+	   if O_CREAT was specified and O_EXCL was not specified
+	   then initially do the open without O_CREAT, as in that case
+	   we know that we did not create the file, so we don't have
+	   to fchown it
+	 */
+	if ((flags & O_CREAT) && !(flags & O_EXCL)) {
+	try_again:
+		fd = open(filename, flags & ~O_CREAT, mode);
+		/* if this open succeeded, or if it failed
+		   with anything other than ENOENT, then we return the
+		   open result, with the original errno */
+		if (fd == -1 && errno != ENOENT) {
+			talloc_free(ctx);
+			errno = saved_errno;
+			return -1;
+		}
+		if (fd != -1) {
+			/* the file already existed and we opened it */
+			talloc_free(ctx);
+			errno = orig_errno;
+			return fd;
+		}
+
+		fd = open(filename, flags | O_EXCL, mode);
+		if (fd == -1 && errno != EEXIST) {
+			talloc_free(ctx);
+			errno = saved_errno;
+			return -1;
+		}
+		if (fd != -1) {
+			/* we created the file, we need to set the
+			   right ownership on it */
+			ret = pvfs_sys_fchown(pvfs, ctx, fd);
+			if (ret == -1) {
+				close(fd);
+				unlink(filename);
+				talloc_free(ctx);
+				errno = saved_errno;
+				return -1;
+			}
+			talloc_free(ctx);
+			errno = orig_errno;
+			return fd;
+		}
+
+		/* the file got created between the two times
+		   we tried to open it! Try again */
+		if (retries-- > 0) {
+			goto try_again;
+		}
+
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	fd = open(filename, flags, mode);
+	if (fd == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	/* if we have created a file then fchown it */
+	if (flags & O_CREAT) {
+		ret = pvfs_sys_fchown(pvfs, ctx, fd);
+		if (ret == -1) {
+			close(fd);
+			unlink(filename);
+			talloc_free(ctx);
+			errno = saved_errno;
+			return -1;
+		}
+	}
+
+	talloc_free(ctx);
+	return fd;
+}
+
+
+/*
+  wrap unlink for system override
+*/
+int pvfs_sys_unlink(struct pvfs_state *pvfs, const char *filename, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = unlink(filename);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+
+	ctx = pvfs_sys_pushdir(pvfs, &filename);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = unlink(filename);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
+
+
+static bool contains_symlink(const char *path)
+{
+	int fd = open(path, PVFS_NOFOLLOW | O_RDONLY);
+	int posix_errno = errno;
+	if (fd != -1) {
+		close(fd);
+		return false;
+	}
+
+#if defined(ENOTSUP) && defined(OSF1)
+	/* handle special Tru64 errno */
+	if (errno == ENOTSUP) {
+		posix_errno = ELOOP;
+	}
+#endif /* ENOTSUP */
+
+#ifdef EFTYPE
+	/* fix broken NetBSD errno */
+	if (errno == EFTYPE) {
+		posix_errno = ELOOP;
+	}
+#endif /* EFTYPE */
+
+	/* fix broken FreeBSD errno */
+	if (errno == EMLINK) {
+		posix_errno = ELOOP;
+	}
+
+	return (posix_errno == ELOOP);
+}
+
+/*
+  wrap rename for system override
+*/
+int pvfs_sys_rename(struct pvfs_state *pvfs, const char *name1, const char *name2, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = rename(name1, name2);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+
+	ctx = pvfs_sys_pushdir(pvfs, &name1);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	/* we need the destination as an absolute path */
+	if (name2[0] != '/') {
+		name2 = talloc_asprintf(ctx, "%s/%s", ctx->old_wd, name2);
+		if (name2 == NULL) {
+			talloc_free(ctx);
+			errno = saved_errno;
+			return -1;
+		}
+	}
+
+	/* make sure the destination isn't a symlink beforehand */
+	if (contains_symlink(name2)) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = rename(name1, name2);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	/* make sure the destination isn't a symlink afterwards */
+	if (contains_symlink(name2)) {
+		DEBUG(0,(__location__ ": Possible symlink attack in rename to '%s' - unlinking\n", name2));
+		unlink(name2);
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
+
+
+/*
+  wrap mkdir for system override
+*/
+int pvfs_sys_mkdir(struct pvfs_state *pvfs, const char *dirname, mode_t mode, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = mkdir(dirname, mode);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+	ctx = pvfs_sys_pushdir(pvfs, &dirname);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = mkdir(dirname, mode);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = pvfs_sys_chown(pvfs, ctx, dirname);
+	if (ret == -1) {
+		rmdir(dirname);
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
+
+
+/*
+  wrap rmdir for system override
+*/
+int pvfs_sys_rmdir(struct pvfs_state *pvfs, const char *dirname, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = rmdir(dirname);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+
+	ctx = pvfs_sys_pushdir(pvfs, &dirname);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = rmdir(dirname);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
+
+/*
+  wrap fchmod for system override
+*/
+int pvfs_sys_fchmod(struct pvfs_state *pvfs, int fd, mode_t mode, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = fchmod(fd, mode);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+
+	ctx = pvfs_sys_pushdir(pvfs, NULL);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = fchmod(fd, mode);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
+
+
+/*
+  wrap chmod for system override
+*/
+int pvfs_sys_chmod(struct pvfs_state *pvfs, const char *filename, mode_t mode, bool allow_override)
+{
+	int ret;
+	struct pvfs_sys_ctx *ctx;
+	int saved_errno, orig_errno;
+
+	orig_errno = errno;
+
+	ret = chmod(filename, mode);
+	if (ret != -1 ||
+	    !allow_override ||
+	    errno != EACCES) {
+		return ret;
+	}
+
+	saved_errno = errno;
+
+	ctx = pvfs_sys_pushdir(pvfs, &filename);
+	if (ctx == NULL) {
+		errno = saved_errno;
+		return -1;
+	}
+
+	ret = chmod(filename, mode);
+	if (ret == -1) {
+		talloc_free(ctx);
+		errno = saved_errno;
+		return -1;
+	}
+
+	talloc_free(ctx);
+	errno = orig_errno;
+	return ret;
+}
diff --git a/source4/ntvfs/posix/pvfs_unlink.c b/source4/ntvfs/posix/pvfs_unlink.c
new file mode 100644
index 0000000..a4b51d1
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_unlink.c
@@ -0,0 +1,276 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - unlink
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "system/dir.h"
+
+/*
+  retry an open after a sharing violation
+*/
+static void pvfs_retry_unlink(struct pvfs_odb_retry *r,
+			      struct ntvfs_module_context *ntvfs,
+			      struct ntvfs_request *req,
+			      void *_io,
+			      void *private_data,
+			      enum pvfs_wait_notice reason)
+{
+	union smb_unlink *io = talloc_get_type(_io, union smb_unlink);
+	NTSTATUS status = NT_STATUS_INTERNAL_ERROR;
+
+	talloc_free(r);
+
+	switch (reason) {
+	case PVFS_WAIT_CANCEL:
+/*TODO*/
+		status = NT_STATUS_CANCELLED;
+		break;
+	case PVFS_WAIT_TIMEOUT:
+		/* if it timed out, then give the failure
+		   immediately */
+/*TODO*/
+		status = NT_STATUS_SHARING_VIOLATION;
+		break;
+	case PVFS_WAIT_EVENT:
+
+		/* try the open again, which could trigger another retry setup
+		   if it wants to, so we have to unmark the async flag so we
+		   will know if it does a second async reply */
+		req->async_states->state &= ~NTVFS_ASYNC_STATE_ASYNC;
+
+		status = pvfs_unlink(ntvfs, req, io);
+		if (req->async_states->state & NTVFS_ASYNC_STATE_ASYNC) {
+			/* the 2nd try also replied async, so we don't send
+			   the reply yet */
+			return;
+		}
+
+		/* re-mark it async, just in case someone up the chain does
+		   paranoid checking */
+		req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+		break;
+	}
+
+	/* send the reply up the chain */
+	req->async_states->status = status;
+	req->async_states->send_fn(req);
+}
+
+/*
+  setup for a unlink retry after a sharing violation
+  or a non granted oplock
+*/
+static NTSTATUS pvfs_unlink_setup_retry(struct ntvfs_module_context *ntvfs,
+					struct ntvfs_request *req,
+					union smb_unlink *io,
+					struct odb_lock *lck,
+					NTSTATUS status)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct timeval end_time;
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       0, pvfs->sharing_violation_delay);
+	} else if (NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) {
+		end_time = timeval_add(&req->statistics.request_time,
+				       pvfs->oplock_break_timeout, 0);
+	} else {
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	return pvfs_odb_retry_setup(ntvfs, req, lck, end_time, io, NULL,
+				    pvfs_retry_unlink);
+}
+
+
+/*
+  unlink a file
+*/
+static NTSTATUS pvfs_unlink_file(struct pvfs_state *pvfs,
+				 struct pvfs_filename *name)
+{
+	NTSTATUS status = NT_STATUS_OK;
+
+	if (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	if (name->st.st_nlink == 1) {
+		status = pvfs_xattr_unlink_hook(pvfs, name->full_name);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+	}
+
+	/* finally try the actual unlink */
+	if (pvfs_sys_unlink(pvfs, name->full_name, name->allow_override) == -1) {
+		status = pvfs_map_errno(pvfs, errno);
+	}
+
+	if (NT_STATUS_IS_OK(status)) {
+		notify_trigger(pvfs->notify_context, 
+			       NOTIFY_ACTION_REMOVED, 
+			       FILE_NOTIFY_CHANGE_FILE_NAME,
+			       name->full_name);
+	}
+
+	return status;
+}
+
+/*
+  unlink one file
+*/
+static NTSTATUS pvfs_unlink_one(struct pvfs_state *pvfs,
+				struct ntvfs_request *req,
+				union smb_unlink *unl,
+				struct pvfs_filename *name)
+{
+	NTSTATUS status;
+	struct odb_lock *lck = NULL;
+
+	/* make sure its matches the given attributes */
+	status = pvfs_match_attrib(pvfs, name,
+				   unl->unlink.in.attrib, 0);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = pvfs_can_delete(pvfs, req, name, &lck);
+
+	/*
+	 * on a sharing violation we need to retry when the file is closed by
+	 * the other user, or after 1 second
+	 * on a non granted oplock we need to retry when the file is closed by
+	 * the other user, or after 30 seconds
+	 */
+	if ((NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION) ||
+	     NT_STATUS_EQUAL(status, NT_STATUS_OPLOCK_NOT_GRANTED)) &&
+	    (req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
+		return pvfs_unlink_setup_retry(pvfs->ntvfs, req, unl, lck, status);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (name->stream_name) {
+		if (!name->stream_exists) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+
+		return pvfs_stream_delete(pvfs, name, -1);
+	}
+
+	return pvfs_unlink_file(pvfs, name);
+}
+
+/*
+  delete a file - the dirtype specifies the file types to include in the search. 
+  The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
+*/
+NTSTATUS pvfs_unlink(struct ntvfs_module_context *ntvfs,
+		     struct ntvfs_request *req,
+		     union smb_unlink *unl)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_dir *dir;
+	NTSTATUS status;
+	uint32_t total_deleted=0;
+	struct pvfs_filename *name;
+	const char *fname;
+	off_t ofs;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, unl->unlink.in.pattern, 
+				   PVFS_RESOLVE_WILDCARD |
+				   PVFS_RESOLVE_STREAMS |
+				   PVFS_RESOLVE_NO_OPENDB,
+				   &name);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!name->exists && !name->has_wildcard) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (name->exists && 
+	    (name->dos.attrib & FILE_ATTRIBUTE_DIRECTORY)) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	if (!name->has_wildcard) {
+		return pvfs_unlink_one(pvfs, req, unl, name);
+	}
+
+	/*
+	 * disable async requests in the wildcard case
+	 * untill we have proper tests for this
+	 */
+	req->async_states->state &= ~NTVFS_ASYNC_STATE_MAY_ASYNC;
+
+	/* get list of matching files */
+	status = pvfs_list_start(pvfs, name, req, &dir);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = NT_STATUS_NO_SUCH_FILE;
+	talloc_free(name);
+
+	ofs = 0;
+
+	while ((fname = pvfs_list_next(dir, &ofs))) {
+		/* this seems to be a special case */
+		if ((unl->unlink.in.attrib & FILE_ATTRIBUTE_DIRECTORY) &&
+		    (ISDOT(fname) || ISDOTDOT(fname))) {
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		}
+
+		/* get a pvfs_filename object */
+		status = pvfs_resolve_partial(pvfs, req,
+					      pvfs_list_unix_path(dir),
+					      fname,
+					      PVFS_RESOLVE_NO_OPENDB,
+					      &name);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		status = pvfs_unlink_one(pvfs, req, unl, name);
+		if (NT_STATUS_IS_OK(status)) {
+			total_deleted++;
+		}
+
+		talloc_free(name);
+	}
+
+	if (total_deleted > 0) {
+		status = NT_STATUS_OK;
+	}
+
+	return status;
+}
+
+
diff --git a/source4/ntvfs/posix/pvfs_util.c b/source4/ntvfs/posix/pvfs_util.c
new file mode 100644
index 0000000..6afb928
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_util.c
@@ -0,0 +1,206 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+  utility functions for posix backend
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+
+/*
+  return true if a string contains one of the CIFS wildcard characters
+*/
+bool pvfs_has_wildcard(const char *str)
+{
+	if (strpbrk(str, "*?<>\"")) {
+		return true;
+	}
+	return false;
+}
+
+/*
+  map a unix errno to a NTSTATUS
+*/
+NTSTATUS pvfs_map_errno(struct pvfs_state *pvfs, int unix_errno)
+{
+	NTSTATUS status;
+	status = map_nt_error_from_unix_common(unix_errno);
+	DEBUG(10,(__location__ " mapped unix errno %d -> %s\n", unix_errno, nt_errstr(status)));
+	return status;
+}
+
+
+/*
+  check if a filename has an attribute matching the given attribute search value
+  this is used by calls like unlink and search which take an attribute
+  and only include special files if they match the given attribute
+*/
+NTSTATUS pvfs_match_attrib(struct pvfs_state *pvfs, struct pvfs_filename *name, 
+			   uint32_t attrib, uint32_t must_attrib)
+{
+	if ((name->dos.attrib & ~attrib) & FILE_ATTRIBUTE_DIRECTORY) {
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+	if ((name->dos.attrib & ~attrib) & (FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM)) {
+		return NT_STATUS_NO_SUCH_FILE;
+	}
+	if (must_attrib & ~name->dos.attrib) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+	return NT_STATUS_OK;
+}
+
+
+/*
+  normalise a file attribute
+*/
+uint32_t pvfs_attrib_normalise(uint32_t attrib, mode_t mode)
+{
+	if (attrib != FILE_ATTRIBUTE_NORMAL) {
+		attrib &= ~FILE_ATTRIBUTE_NORMAL;
+	}
+	if (S_ISDIR(mode)) {
+		attrib |= FILE_ATTRIBUTE_DIRECTORY;
+	} else {
+		attrib &= ~FILE_ATTRIBUTE_DIRECTORY;
+	}
+	return attrib;
+}
+
+
+/*
+  copy a file. Caller is supposed to have already ensured that the
+  operation is allowed. The destination file must not exist.
+*/
+NTSTATUS pvfs_copy_file(struct pvfs_state *pvfs,
+			struct pvfs_filename *name1, 
+			struct pvfs_filename *name2,
+			bool allow_override)
+{
+	int fd1, fd2;
+	mode_t mode;
+	NTSTATUS status;
+	size_t buf_size = 0x10000;
+	uint8_t *buf = talloc_array(name2, uint8_t, buf_size);
+
+	if (buf == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	fd1 = pvfs_sys_open(pvfs, name1->full_name, O_RDONLY, 0, allow_override);
+	if (fd1 == -1) {
+		talloc_free(buf);
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	fd2 = pvfs_sys_open(pvfs, name2->full_name, O_CREAT|O_EXCL|O_WRONLY, 0, allow_override);
+	if (fd2 == -1) {
+		close(fd1);
+		talloc_free(buf);
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	while (1) {
+		ssize_t ret2, ret = read(fd1, buf, buf_size);
+		if (ret == -1 && 
+		    (errno == EINTR || errno == EAGAIN)) {
+			continue;
+		}
+		if (ret <= 0) break;
+
+		ret2 = write(fd2, buf, ret);
+		if (ret2 == -1 &&
+		    (errno == EINTR || errno == EAGAIN)) {
+			continue;
+		}
+		
+		if (ret2 != ret) {
+			close(fd1);
+			close(fd2);
+			talloc_free(buf);
+			pvfs_sys_unlink(pvfs, name2->full_name, allow_override);
+			if (ret2 == -1) {
+				return pvfs_map_errno(pvfs, errno);
+			}
+			return NT_STATUS_DISK_FULL;
+		}
+	}
+
+	talloc_free(buf);
+	close(fd1);
+
+	mode = pvfs_fileperms(pvfs, name1->dos.attrib);
+	if (pvfs_sys_fchmod(pvfs, fd2, mode, allow_override) == -1) {
+		status = pvfs_map_errno(pvfs, errno);
+		close(fd2);
+		pvfs_sys_unlink(pvfs, name2->full_name, allow_override);
+		return status;
+	}
+
+	name2->st.st_mode = mode;
+	name2->dos = name1->dos;
+
+	status = pvfs_dosattrib_save(pvfs, name2, fd2);
+	if (!NT_STATUS_IS_OK(status)) {
+		close(fd2);
+		pvfs_sys_unlink(pvfs, name2->full_name, allow_override);
+		return status;
+	}
+
+	close(fd2);
+
+	return NT_STATUS_OK;
+}
+
+
+/* 
+   hash a string of the specified length. The string does not need to be
+   null terminated 
+
+   hash alghorithm changed to FNV1 by idra@samba.org (Simo Sorce).
+   see http://www.isthe.com/chongo/tech/comp/fnv/index.html for a
+   discussion on Fowler / Noll / Vo (FNV) Hash by one of it's authors
+*/
+uint32_t pvfs_name_hash(const char *key, size_t length)
+{
+	const uint32_t fnv1_prime = 0x01000193;
+	const uint32_t fnv1_init = 0xa6b93095;
+	uint32_t value = fnv1_init;
+
+	while (*key && length--) {
+		size_t c_size;
+		codepoint_t c = next_codepoint(key, &c_size);
+		c = toupper_m(c);
+                value *= fnv1_prime;
+                value ^= (uint32_t)c;
+		key += c_size;
+        }
+
+	return value;
+}
+
+
+/*
+  file allocation size rounding. This is required to pass ifstest
+*/
+uint64_t pvfs_round_alloc_size(struct pvfs_state *pvfs, uint64_t size)
+{
+	const uint32_t round_value = pvfs->alloc_size_rounding;
+	return round_value * ((size + round_value - 1)/round_value);
+}
diff --git a/source4/ntvfs/posix/pvfs_wait.c b/source4/ntvfs/posix/pvfs_wait.c
new file mode 100644
index 0000000..21ff33e
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_wait.c
@@ -0,0 +1,212 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - async request wait routines
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "../lib/util/dlinklist.h"
+#include "vfs_posix.h"
+#include "samba/service_stream.h"
+#include "lib/messaging/irpc.h"
+
+/* the context for a single wait instance */
+struct pvfs_wait {
+	struct pvfs_wait *next, *prev;
+	struct pvfs_state *pvfs;
+	void (*handler)(void *, enum pvfs_wait_notice);
+	void *private_data;
+	int msg_type;
+	struct imessaging_context *msg_ctx;
+	struct tevent_context *ev;
+	struct ntvfs_request *req;
+	enum pvfs_wait_notice reason;
+};
+
+/*
+  called from the ntvfs layer when we have requested setup of an async
+  call.  this ensures that async calls runs with the right state of
+  previous ntvfs handlers in the chain (such as security context)
+*/
+NTSTATUS pvfs_async_setup(struct ntvfs_module_context *ntvfs,
+			  struct ntvfs_request *req, void *private_data)
+{
+	struct pvfs_wait *pwait = talloc_get_type(private_data,
+						  struct pvfs_wait);
+	pwait->handler(pwait->private_data, pwait->reason);
+	return NT_STATUS_OK;
+}
+
+/*
+  receive a completion message for a wait
+*/
+static void pvfs_wait_dispatch(struct imessaging_context *msg,
+			       void *private_data,
+			       uint32_t msg_type,
+			       struct server_id src,
+			       size_t num_fds,
+			       int *fds,
+			       DATA_BLOB *data)
+{
+	struct pvfs_wait *pwait = talloc_get_type(private_data,
+						  struct pvfs_wait);
+	struct ntvfs_request *req;
+	void *p = NULL;
+
+	if (num_fds != 0) {
+		DBG_WARNING("Received %zu fds, ignoring message\n", num_fds);
+		return;
+	}
+
+	/* we need to check that this one is for us. See
+	   imessaging_send_ptr() for the other side of this.
+	 */
+	if (data->length == sizeof(void *)) {
+		void **pp;
+		pp = (void **)data->data;
+		p = *pp;
+	}
+	if (p == NULL || p != pwait->private_data) {
+		return;
+	}
+
+	pwait->reason = PVFS_WAIT_EVENT;
+
+	/* the extra reference here is to ensure that the req
+	   structure is not destroyed when the async request reply is
+	   sent, which would cause problems with the other ntvfs
+	   modules above us */
+	req = talloc_reference(msg, pwait->req);
+	ntvfs_async_setup(pwait->req, pwait);
+	talloc_unlink(msg, req);
+}
+
+
+/*
+  receive a timeout on a message wait
+*/
+static void pvfs_wait_timeout(struct tevent_context *ev, 
+			      struct tevent_timer *te, struct timeval t,
+			      void *private_data)
+{
+	struct pvfs_wait *pwait = talloc_get_type(private_data,
+						  struct pvfs_wait);
+	struct ntvfs_request *req = pwait->req;
+
+	pwait->reason = PVFS_WAIT_TIMEOUT;
+
+	req = talloc_reference(ev, req);
+	if (req != NULL) {
+		ntvfs_async_setup(req, pwait);
+		talloc_unlink(ev, req);
+	}
+}
+
+
+/*
+  destroy a pending wait
+ */
+static int pvfs_wait_destructor(struct pvfs_wait *pwait)
+{
+	if (pwait->msg_type != -1) {
+		imessaging_deregister(pwait->msg_ctx, pwait->msg_type, pwait);
+	}
+	DLIST_REMOVE(pwait->pvfs->wait_list, pwait);
+	return 0;
+}
+
+/*
+  setup a request to wait on a message of type msg_type, with a
+  timeout (given as an expiry time)
+
+  the return value is a handle. To stop waiting talloc_free this
+  handle.
+
+  if msg_type == -1 then no message is registered, and it is assumed
+  that the caller handles any messaging setup needed
+*/
+struct pvfs_wait *pvfs_wait_message(struct pvfs_state *pvfs,
+				    struct ntvfs_request *req,
+				    int msg_type,
+				    struct timeval end_time,
+				    void (*fn)(void *, enum pvfs_wait_notice),
+				    void *private_data)
+{
+	struct pvfs_wait *pwait;
+
+	pwait = talloc(pvfs, struct pvfs_wait);
+	if (pwait == NULL) {
+		return NULL;
+	}
+
+	pwait->private_data = private_data;
+	pwait->handler = fn;
+	pwait->msg_ctx = pvfs->ntvfs->ctx->msg_ctx;
+	pwait->ev = pvfs->ntvfs->ctx->event_ctx;
+	pwait->msg_type = msg_type;
+	pwait->req = talloc_reference(pwait, req);
+	pwait->pvfs = pvfs;
+
+	if (!timeval_is_zero(&end_time)) {
+		/* setup a timer */
+		tevent_add_timer(pwait->ev, pwait, end_time, pvfs_wait_timeout, pwait);
+	}
+
+	/* register with the messaging subsystem for this message
+	   type */
+	if (msg_type != -1) {
+		imessaging_register(pwait->msg_ctx,
+				   pwait,
+				   msg_type,
+				   pvfs_wait_dispatch);
+	}
+
+	/* tell the main smb server layer that we will be replying 
+	   asynchronously */
+	req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC;
+
+	DLIST_ADD(pvfs->wait_list, pwait);
+
+	/* make sure we cleanup the timer and message handler */
+	talloc_set_destructor(pwait, pvfs_wait_destructor);
+
+	return pwait;
+}
+
+
+/*
+  cancel an outstanding async request
+*/
+NTSTATUS pvfs_cancel(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_wait *pwait;
+
+	for (pwait=pvfs->wait_list;pwait;pwait=pwait->next) {
+		if (pwait->req == req) {
+			/* trigger a cancel on the request */
+			pwait->reason = PVFS_WAIT_CANCEL;
+			ntvfs_async_setup(pwait->req, pwait);
+			return NT_STATUS_OK;
+		}
+	}
+
+	return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
+}
diff --git a/source4/ntvfs/posix/pvfs_write.c b/source4/ntvfs/posix/pvfs_write.c
new file mode 100644
index 0000000..9773325
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_write.c
@@ -0,0 +1,145 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - write
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/security.h"
+#include "lib/events/events.h"
+
+static void pvfs_write_time_update_handler(struct tevent_context *ev,
+					   struct tevent_timer *te,
+					   struct timeval tv,
+					   void *private_data)
+{
+	struct pvfs_file_handle *h = talloc_get_type(private_data,
+				     struct pvfs_file_handle);
+	struct odb_lock *lck;
+	NTSTATUS status;
+	NTTIME write_time;
+
+	lck = odb_lock(h, h->pvfs->odb_context, &h->odb_locking_key);
+	if (lck == NULL) {
+		DEBUG(0,("Unable to lock opendb for write time update\n"));
+		return;
+	}
+
+	write_time = timeval_to_nttime(&tv);
+
+	status = odb_set_write_time(lck, write_time, false);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("Unable to update write time: %s\n",
+			nt_errstr(status)));
+		return;
+	}
+
+	talloc_free(lck);
+
+	h->write_time.update_event = NULL;
+}
+
+static void pvfs_trigger_write_time_update(struct pvfs_file_handle *h)
+{
+	struct pvfs_state *pvfs = h->pvfs;
+	struct timeval tv;
+
+	if (h->write_time.update_triggered) {
+		return;
+	}
+
+	tv = timeval_current_ofs_usec(pvfs->writetime_delay);
+
+	h->write_time.update_triggered = true;
+	h->write_time.update_on_close = true;
+	h->write_time.update_event = tevent_add_timer(pvfs->ntvfs->ctx->event_ctx,
+						     h, tv,
+						     pvfs_write_time_update_handler,
+						     h);
+	if (!h->write_time.update_event) {
+		DEBUG(0,("Failed tevent_add_timer\n"));
+	}
+}
+
+/*
+  write to a file
+*/
+NTSTATUS pvfs_write(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req, union smb_write *wr)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	ssize_t ret;
+	struct pvfs_file *f;
+	NTSTATUS status;
+
+	if (wr->generic.level != RAW_WRITE_WRITEX) {
+		return ntvfs_map_write(ntvfs, req, wr);
+	}
+
+	f = pvfs_find_fd(pvfs, req, wr->writex.in.file.ntvfs);
+	if (!f) {
+		return NT_STATUS_INVALID_HANDLE;
+	}
+
+	if (f->handle->fd == -1) {
+		return NT_STATUS_INVALID_DEVICE_REQUEST;
+	}
+
+	if (!(f->access_mask & (SEC_FILE_WRITE_DATA | SEC_FILE_APPEND_DATA))) {
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	status = pvfs_check_lock(pvfs, f, req->smbpid, 
+				 wr->writex.in.offset,
+				 wr->writex.in.count,
+				 WRITE_LOCK);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	status = pvfs_break_level2_oplocks(f);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	pvfs_trigger_write_time_update(f->handle);
+
+	if (f->handle->name->stream_name) {
+		ret = pvfs_stream_write(pvfs,
+					f->handle,
+					wr->writex.in.data, 
+					wr->writex.in.count,
+					wr->writex.in.offset);
+	} else {
+		ret = pwrite(f->handle->fd, 
+			     wr->writex.in.data, 
+			     wr->writex.in.count,
+			     wr->writex.in.offset);
+	}
+	if (ret == -1) {
+		if (errno == EFBIG) {
+			return NT_STATUS_INVALID_PARAMETER;
+		}
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	f->handle->seek_offset = wr->writex.in.offset + ret;
+	
+	wr->writex.out.nwritten = ret;
+	wr->writex.out.remaining = 0; /* should fill this in? */
+
+	return NT_STATUS_OK;
+}
diff --git a/source4/ntvfs/posix/pvfs_xattr.c b/source4/ntvfs/posix/pvfs_xattr.c
new file mode 100644
index 0000000..ab88d89
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_xattr.c
@@ -0,0 +1,488 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - xattr support
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "../lib/util/unix_privs.h"
+#include "librpc/gen_ndr/ndr_xattr.h"
+#include "param/param.h"
+#include "ntvfs/posix/posix_eadb_proto.h"
+
+/*
+  pull a xattr as a blob
+*/
+static NTSTATUS pull_xattr_blob(struct pvfs_state *pvfs,
+				TALLOC_CTX *mem_ctx,
+				const char *attr_name, 
+				const char *fname, 
+				int fd, 
+				size_t estimated_size,
+				DATA_BLOB *blob)
+{
+	NTSTATUS status;
+
+	if (pvfs->ea_db) {
+		return pull_xattr_blob_tdb(pvfs, mem_ctx, attr_name, fname, 
+					   fd, estimated_size, blob);
+	}
+
+	status = pull_xattr_blob_system(pvfs, mem_ctx, attr_name, fname, 
+					fd, estimated_size, blob);
+
+	/* if the filesystem doesn't support them, then tell pvfs not to try again */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)||
+	    NT_STATUS_EQUAL(status, NT_STATUS_NOT_IMPLEMENTED)||
+	    NT_STATUS_EQUAL(status, NT_STATUS_INVALID_SYSTEM_SERVICE)) {
+		DEBUG(2,("pvfs_xattr: xattr not supported in filesystem: %s\n", nt_errstr(status)));
+		pvfs->flags &= ~PVFS_FLAG_XATTR_ENABLE;
+		status = NT_STATUS_NOT_FOUND;
+	}
+
+	return status;
+}
+
+/*
+  push a xattr as a blob
+*/
+static NTSTATUS push_xattr_blob(struct pvfs_state *pvfs,
+				const char *attr_name, 
+				const char *fname, 
+				int fd, 
+				const DATA_BLOB *blob)
+{
+	if (pvfs->ea_db) {
+		return push_xattr_blob_tdb(pvfs, attr_name, fname, fd, blob);
+	}
+	return push_xattr_blob_system(pvfs, attr_name, fname, fd, blob);
+}
+
+
+/*
+  delete a xattr
+*/
+static NTSTATUS delete_xattr(struct pvfs_state *pvfs, const char *attr_name, 
+			     const char *fname, int fd)
+{
+	if (pvfs->ea_db) {
+		return delete_posix_eadb(pvfs, attr_name, fname, fd);
+	}
+	return delete_xattr_system(pvfs, attr_name, fname, fd);
+}
+
+/*
+  a hook called on unlink - allows the tdb xattr backend to cleanup
+*/
+NTSTATUS pvfs_xattr_unlink_hook(struct pvfs_state *pvfs, const char *fname)
+{
+	if (pvfs->ea_db) {
+		return unlink_posix_eadb(pvfs, fname);
+	}
+	return unlink_xattr_system(pvfs, fname);
+}
+
+
+/*
+  load a NDR structure from a xattr
+*/
+NTSTATUS pvfs_xattr_ndr_load(struct pvfs_state *pvfs,
+			     TALLOC_CTX *mem_ctx,
+			     const char *fname, int fd, const char *attr_name,
+			     void *p, void *pull_fn)
+{
+	NTSTATUS status;
+	DATA_BLOB blob;
+	enum ndr_err_code ndr_err;
+
+	status = pull_xattr_blob(pvfs, mem_ctx, attr_name, fname, 
+				 fd, XATTR_DOSATTRIB_ESTIMATED_SIZE, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/* pull the blob */
+	ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, p,
+								   (ndr_pull_flags_fn_t)pull_fn);
+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+		return ndr_map_error2ntstatus(ndr_err);
+	}
+
+	data_blob_free(&blob);
+
+	return NT_STATUS_OK;
+}
+
+/*
+  save a NDR structure into a xattr
+*/
+NTSTATUS pvfs_xattr_ndr_save(struct pvfs_state *pvfs,
+			     const char *fname, int fd, const char *attr_name, 
+			     void *p, void *push_fn)
+{
+	TALLOC_CTX *mem_ctx = talloc_new(NULL);
+	DATA_BLOB blob;
+	NTSTATUS status;
+	enum ndr_err_code ndr_err;
+
+	ndr_err = ndr_push_struct_blob(&blob, mem_ctx, p, (ndr_push_flags_fn_t)push_fn);
+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+		talloc_free(mem_ctx);
+		return ndr_map_error2ntstatus(ndr_err);
+	}
+
+	status = push_xattr_blob(pvfs, attr_name, fname, fd, &blob);
+	talloc_free(mem_ctx);
+
+	return status;
+}
+
+
+/*
+  fill in file attributes from extended attributes
+*/
+NTSTATUS pvfs_dosattrib_load(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd)
+{
+	NTSTATUS status;
+	struct xattr_DosAttrib attrib;
+	TALLOC_CTX *mem_ctx = talloc_new(name);
+	struct xattr_DosInfo1 *info1;
+	struct xattr_DosInfo2Old *info2;
+
+	if (name->stream_name != NULL) {
+		name->stream_exists = false;
+	} else {
+		name->stream_exists = true;
+	}
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+
+	status = pvfs_xattr_ndr_load(pvfs, mem_ctx, name->full_name, 
+				     fd, XATTR_DOSATTRIB_NAME,
+				     &attrib,
+				     (void *) ndr_pull_xattr_DosAttrib);
+
+	/* not having a DosAttrib is not an error */
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		talloc_free(mem_ctx);
+		return pvfs_stream_info(pvfs, name, fd);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return status;
+	}
+
+	switch (attrib.version) {
+	case 1:
+		info1 = &attrib.info.info1;
+		name->dos.attrib = pvfs_attrib_normalise(info1->attrib, 
+							 name->st.st_mode);
+		name->dos.ea_size = info1->ea_size;
+		if (name->st.st_size == info1->size) {
+			name->dos.alloc_size = 
+				pvfs_round_alloc_size(pvfs, info1->alloc_size);
+		}
+		if (!null_nttime(info1->create_time)) {
+			name->dos.create_time = info1->create_time;
+		}
+		if (!null_nttime(info1->change_time)) {
+			name->dos.change_time = info1->change_time;
+		}
+		name->dos.flags = 0;
+		break;
+
+	case 2:
+		/*
+		 * Note: This is only used to parse existing values from disk
+		 *       We use xattr_DosInfo1 again for storing new values
+		 */
+		info2 = &attrib.info.oldinfo2;
+		name->dos.attrib = pvfs_attrib_normalise(info2->attrib, 
+							 name->st.st_mode);
+		name->dos.ea_size = info2->ea_size;
+		if (name->st.st_size == info2->size) {
+			name->dos.alloc_size = 
+				pvfs_round_alloc_size(pvfs, info2->alloc_size);
+		}
+		if (!null_nttime(info2->create_time)) {
+			name->dos.create_time = info2->create_time;
+		}
+		if (!null_nttime(info2->change_time)) {
+			name->dos.change_time = info2->change_time;
+		}
+		name->dos.flags = info2->flags;
+		break;
+
+	default:
+		DEBUG(0,("ERROR: Unsupported xattr DosAttrib version %d on '%s'\n",
+			 attrib.version, name->full_name));
+		talloc_free(mem_ctx);
+		return NT_STATUS_INVALID_LEVEL;
+	}
+	talloc_free(mem_ctx);
+	
+	status = pvfs_stream_info(pvfs, name, fd);
+
+	return status;
+}
+
+
+/*
+  save the file attribute into the xattr
+*/
+NTSTATUS pvfs_dosattrib_save(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd)
+{
+	struct xattr_DosAttrib attrib;
+	struct xattr_DosInfo1 *info1;
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+
+	attrib.version = 1;
+	info1 = &attrib.info.info1;
+
+	name->dos.attrib = pvfs_attrib_normalise(name->dos.attrib, name->st.st_mode);
+
+	info1->attrib      = name->dos.attrib;
+	info1->ea_size     = name->dos.ea_size;
+	info1->size        = name->st.st_size;
+	info1->alloc_size  = name->dos.alloc_size;
+	info1->create_time = name->dos.create_time;
+	info1->change_time = name->dos.change_time;
+
+	return pvfs_xattr_ndr_save(pvfs, name->full_name, fd, 
+				   XATTR_DOSATTRIB_NAME, &attrib, 
+				   (void *) ndr_push_xattr_DosAttrib);
+}
+
+
+/*
+  load the set of DOS EAs
+*/
+NTSTATUS pvfs_doseas_load(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+			  struct xattr_DosEAs *eas)
+{
+	NTSTATUS status;
+	ZERO_STRUCTP(eas);
+
+	if (name->stream_name) {
+		/* We don't support EAs on streams */
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+	status = pvfs_xattr_ndr_load(pvfs, eas, name->full_name, fd, XATTR_DOSEAS_NAME,
+				     eas, (void *) ndr_pull_xattr_DosEAs);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		return NT_STATUS_OK;
+	}
+	return status;
+}
+
+/*
+  save the set of DOS EAs
+*/
+NTSTATUS pvfs_doseas_save(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+			  struct xattr_DosEAs *eas)
+{
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+	return pvfs_xattr_ndr_save(pvfs, name->full_name, fd, XATTR_DOSEAS_NAME, eas, 
+				   (void *) ndr_push_xattr_DosEAs);
+}
+
+
+/*
+  load the set of streams from extended attributes
+*/
+NTSTATUS pvfs_streams_load(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+			   struct xattr_DosStreams *streams)
+{
+	NTSTATUS status;
+	ZERO_STRUCTP(streams);
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+	status = pvfs_xattr_ndr_load(pvfs, streams, name->full_name, fd, 
+				     XATTR_DOSSTREAMS_NAME,
+				     streams, 
+				     (void *) ndr_pull_xattr_DosStreams);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+		return NT_STATUS_OK;
+	}
+	return status;
+}
+
+/*
+  save the set of streams into filesystem xattr
+*/
+NTSTATUS pvfs_streams_save(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+			   struct xattr_DosStreams *streams)
+{
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+	return pvfs_xattr_ndr_save(pvfs, name->full_name, fd, 
+				   XATTR_DOSSTREAMS_NAME, 
+				   streams, 
+				   (void *) ndr_push_xattr_DosStreams);
+}
+
+
+/*
+  load the current ACL from extended attributes
+*/
+NTSTATUS pvfs_acl_load(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+		       struct xattr_NTACL *acl)
+{
+	NTSTATUS status;
+	ZERO_STRUCTP(acl);
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_NOT_FOUND;
+	}
+	status = pvfs_xattr_ndr_load(pvfs, acl, name->full_name, fd, 
+				     XATTR_NTACL_NAME,
+				     acl, 
+				     (void *) ndr_pull_xattr_NTACL);
+	return status;
+}
+
+/*
+  save the acl for a file into filesystem xattr
+*/
+NTSTATUS pvfs_acl_save(struct pvfs_state *pvfs, struct pvfs_filename *name, int fd,
+		       struct xattr_NTACL *acl)
+{
+	NTSTATUS status;
+	void *privs;
+
+	if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
+		return NT_STATUS_OK;
+	}
+
+	/* this xattr is in the "system" namespace, so we need
+	   admin privileges to set it */
+	privs = root_privileges();
+	status = pvfs_xattr_ndr_save(pvfs, name->full_name, fd, 
+				     XATTR_NTACL_NAME, 
+				     acl, 
+				     (void *) ndr_push_xattr_NTACL);
+	talloc_free(privs);
+	return status;
+}
+
+/*
+  create a zero length xattr with the given name
+*/
+NTSTATUS pvfs_xattr_create(struct pvfs_state *pvfs, 
+			   const char *fname, int fd,
+			   const char *attr_prefix,
+			   const char *attr_name)
+{
+	NTSTATUS status;
+	DATA_BLOB blob = data_blob(NULL, 0);
+	char *aname = talloc_asprintf(NULL, "%s%s", attr_prefix, attr_name);
+	if (aname == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	status = push_xattr_blob(pvfs, aname, fname, fd, &blob);
+	talloc_free(aname);
+	return status;
+}
+
+
+/*
+  delete a xattr with the given name
+*/
+NTSTATUS pvfs_xattr_delete(struct pvfs_state *pvfs, 
+			   const char *fname, int fd,
+			   const char *attr_prefix,
+			   const char *attr_name)
+{
+	NTSTATUS status;
+	char *aname = talloc_asprintf(NULL, "%s%s", attr_prefix, attr_name);
+	if (aname == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	status = delete_xattr(pvfs, aname, fname, fd);
+	talloc_free(aname);
+	return status;
+}
+
+/*
+  load a xattr with the given name
+*/
+NTSTATUS pvfs_xattr_load(struct pvfs_state *pvfs, 
+			 TALLOC_CTX *mem_ctx,
+			 const char *fname, int fd,
+			 const char *attr_prefix,
+			 const char *attr_name,
+			 size_t estimated_size,
+			 DATA_BLOB *blob)
+{
+	NTSTATUS status;
+	char *aname = talloc_asprintf(mem_ctx, "%s%s", attr_prefix, attr_name);
+	if (aname == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	status = pull_xattr_blob(pvfs, mem_ctx, aname, fname, fd, estimated_size, blob);
+	talloc_free(aname);
+	return status;
+}
+
+/*
+  save a xattr with the given name
+*/
+NTSTATUS pvfs_xattr_save(struct pvfs_state *pvfs, 
+			 const char *fname, int fd,
+			 const char *attr_prefix,
+			 const char *attr_name,
+			 const DATA_BLOB *blob)
+{
+	NTSTATUS status;
+	char *aname = talloc_asprintf(NULL, "%s%s", attr_prefix, attr_name);
+	if (aname == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+	status = push_xattr_blob(pvfs, aname, fname, fd, blob);
+	talloc_free(aname);
+	return status;
+}
+
+
+/*
+  probe for system support for xattrs
+*/
+void pvfs_xattr_probe(struct pvfs_state *pvfs)
+{
+	TALLOC_CTX *tmp_ctx = talloc_new(pvfs);
+	DATA_BLOB blob;
+	pull_xattr_blob(pvfs, tmp_ctx, "user.XattrProbe", pvfs->base_directory, 
+			-1, 1, &blob);
+	pull_xattr_blob(pvfs, tmp_ctx, "security.XattrProbe", pvfs->base_directory, 
+			-1, 1, &blob);
+	talloc_free(tmp_ctx);
+}
diff --git a/source4/ntvfs/posix/python/pyposix_eadb.c b/source4/ntvfs/posix/python/pyposix_eadb.c
new file mode 100644
index 0000000..abf397f
--- /dev/null
+++ b/source4/ntvfs/posix/python/pyposix_eadb.c
@@ -0,0 +1,140 @@
+/*
+   Unix SMB/CIFS implementation. Xattr manipulation bindings.
+   Copyright (C) Matthieu Patou <mat@matws.net> 2009-2010
+   Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and
+    Matthias Dieter Wallnöfer 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <Python.h>
+#include "python/py3compat.h"
+#include "includes.h"
+#include "system/filesys.h"
+#include <tdb.h>
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "librpc/ndr/libndr.h"
+#include "ntvfs/posix/posix_eadb.h"
+#include "libcli/util/pyerrors.h"
+#include "param/pyparam.h"
+
+static PyObject *py_is_xattr_supported(PyObject *self,
+			PyObject *Py_UNUSED(ignored))
+{
+	Py_RETURN_TRUE;
+}
+
+static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute, *tdbname;
+	DATA_BLOB blob;
+	Py_ssize_t blobsize;
+	NTSTATUS status;
+	TALLOC_CTX *mem_ctx;
+	struct tdb_wrap *eadb;
+
+	if (!PyArg_ParseTuple(args, "sss"PYARG_BYTES_LEN, &tdbname, &filename, &attribute,
+						  &blob.data, &blobsize))
+		return NULL;
+
+	blob.length = blobsize;
+	mem_ctx = talloc_new(NULL);
+	eadb = tdb_wrap_open(
+		mem_ctx, tdbname, 50000,
+		lpcfg_tdb_flags(py_default_loadparm_context(mem_ctx),
+				TDB_DEFAULT),
+		O_RDWR|O_CREAT, 0600);
+
+	if (eadb == NULL) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	status = push_xattr_blob_tdb_raw(eadb, attribute, filename, -1,
+					 &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		PyErr_SetNTSTATUS(status);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	talloc_free(mem_ctx);
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute, *tdbname;
+	TALLOC_CTX *mem_ctx;
+	DATA_BLOB blob;
+	PyObject *ret;
+	NTSTATUS status;
+	struct tdb_wrap *eadb = NULL;
+
+	if (!PyArg_ParseTuple(args, "sss", &tdbname, &filename, &attribute))
+		return NULL;
+
+	mem_ctx = talloc_new(NULL);
+	eadb = tdb_wrap_open(
+		mem_ctx, tdbname, 50000,
+		lpcfg_tdb_flags(py_default_loadparm_context(mem_ctx),
+				TDB_DEFAULT),
+		O_RDWR|O_CREAT, 0600);
+	if (eadb == NULL) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	status = pull_xattr_blob_tdb_raw(eadb, mem_ctx, attribute, filename,
+									 -1, 100, &blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		PyErr_SetNTSTATUS(status);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	ret = Py_BuildValue(PYARG_BYTES_LEN, blob.data, blob.length);
+	talloc_free(mem_ctx);
+	return ret;
+}
+
+static PyMethodDef py_posix_eadb_methods[] = {
+	{ "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
+		"wrap_getxattr(filename,attribute) -> blob\n"
+		"Retrieve given attribute on the given file." },
+	{ "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS,
+		"wrap_setxattr(filename,attribute,value)\n"
+		"Set the given attribute to the given value on the given file." },
+	{ "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS,
+		"Return true if xattr are supported on this system\n"},
+	{0}
+};
+
+static struct PyModuleDef moduledef = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "posix_eadb",
+    .m_doc = "Python bindings for xattr manipulation.",
+    .m_size = -1,
+    .m_methods = py_posix_eadb_methods,
+};
+
+MODULE_INIT_FUNC(posix_eadb)
+{
+	PyObject *m;
+
+	m = PyModule_Create(&moduledef);
+
+	if (m == NULL)
+		return NULL;
+
+	return m;
+}
diff --git a/source4/ntvfs/posix/python/pyxattr_native.c b/source4/ntvfs/posix/python/pyxattr_native.c
new file mode 100644
index 0000000..d242cd9
--- /dev/null
+++ b/source4/ntvfs/posix/python/pyxattr_native.c
@@ -0,0 +1,129 @@
+/*
+   Unix SMB/CIFS implementation. Xattr manipulation bindings.
+   Copyright (C) Matthieu Patou <mat@matws.net> 2009
+   Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and
+    Matthias Dieter Wallnöfer 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <Python.h>
+#include "python/py3compat.h"
+#include "includes.h"
+#include "librpc/ndr/libndr.h"
+#include "system/filesys.h"
+#include "lib/util/base64.h"
+
+static PyObject *py_is_xattr_supported(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+#if !defined(HAVE_XATTR_SUPPORT)
+	Py_RETURN_FALSE;
+#else
+	Py_RETURN_TRUE;
+#endif
+}
+
+static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute;
+	int ret = 0;
+	Py_ssize_t blobsize;
+	DATA_BLOB blob;
+
+	if (!PyArg_ParseTuple(args, "ss"PYARG_BYTES_LEN, &filename, &attribute, &blob.data,
+        &blobsize))
+		return NULL;
+
+	blob.length = blobsize;
+	ret = setxattr(filename, attribute, blob.data, blob.length, 0);
+	if( ret < 0 ) {
+		if (errno == ENOTSUP) {
+			PyErr_SetFromErrno(PyExc_IOError);
+		} else {
+			PyErr_SetFromErrno(PyExc_TypeError);
+		}
+		return NULL;
+	}
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute;
+	int len;
+	TALLOC_CTX *mem_ctx;
+	char *buf;
+	PyObject *ret;
+	if (!PyArg_ParseTuple(args, "ss", &filename, &attribute))
+		return NULL;
+	mem_ctx = talloc_new(NULL);
+	len = getxattr(filename,attribute,NULL,0);
+	if( len < 0 ) {
+		if (errno == ENOTSUP) {
+			PyErr_SetFromErrno(PyExc_IOError);
+		} else {
+			PyErr_SetFromErrno(PyExc_TypeError);
+		}
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	/* check length ... */
+	buf = talloc_zero_array(mem_ctx, char, len);
+	len = getxattr(filename, attribute, buf, len);
+	if( len < 0 ) {
+		if (errno == ENOTSUP) {
+			PyErr_SetFromErrno(PyExc_IOError);
+		} else {
+			PyErr_SetFromErrno(PyExc_TypeError);
+		}
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	ret = Py_BuildValue(PYARG_BYTES_LEN, buf, len);
+	talloc_free(mem_ctx);
+	return ret;
+}
+
+static PyMethodDef py_xattr_methods[] = {
+	{ "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
+		"wrap_getxattr(filename,attribute) -> blob\n"
+		"Retrieve given attribute on the given file." },
+	{ "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS,
+		"wrap_setxattr(filename,attribute,value)\n"
+		"Set the given attribute to the given value on the given file." },
+	{ "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS,
+		"Return true if xattr are supported on this system\n"},
+	{0}
+};
+
+static struct PyModuleDef moduledef = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "xattr_native",
+    .m_doc = "Python bindings for xattr manipulation.",
+    .m_size = -1,
+    .m_methods = py_xattr_methods,
+};
+
+MODULE_INIT_FUNC(xattr_native)
+{
+	PyObject *m;
+
+	m = PyModule_Create(&moduledef);
+
+	if (m == NULL)
+		return NULL;
+
+	return m;
+}
diff --git a/source4/ntvfs/posix/python/pyxattr_tdb.c b/source4/ntvfs/posix/python/pyxattr_tdb.c
new file mode 100644
index 0000000..425fd86
--- /dev/null
+++ b/source4/ntvfs/posix/python/pyxattr_tdb.c
@@ -0,0 +1,177 @@
+/*
+   Unix SMB/CIFS implementation. Xattr manipulation bindings.
+   Copyright (C) Matthieu Patou <mat@matws.net> 2009-2010
+   Base on work of pyglue.c by Jelmer Vernooij <jelmer@samba.org> 2007 and
+    Matthias Dieter Wallnöfer 2009
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <Python.h>
+#include "python/py3compat.h"
+#include "includes.h"
+#include "system/filesys.h"
+#include <tdb.h>
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "librpc/ndr/libndr.h"
+#include "ntvfs/posix/posix_eadb.h"
+#include "libcli/util/pyerrors.h"
+#include "param/pyparam.h"
+#include "lib/dbwrap/dbwrap.h"
+#include "lib/dbwrap/dbwrap_open.h"
+#include "lib/dbwrap/dbwrap_tdb.h"
+#include "source3/lib/xattr_tdb.h"
+
+static PyObject *py_is_xattr_supported(PyObject *self,
+		PyObject *Py_UNUSED(ignored))
+{
+	Py_RETURN_TRUE;
+}
+
+static PyObject *py_wrap_setxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute, *tdbname;
+	DATA_BLOB blob;
+	Py_ssize_t blobsize;
+	int ret;
+	TALLOC_CTX *mem_ctx;
+	struct loadparm_context *lp_ctx;
+	struct db_context *eadb = NULL;
+	struct file_id id;
+	struct stat sbuf;
+
+	if (!PyArg_ParseTuple(args, "sss"PYARG_BYTES_LEN, &tdbname, &filename, &attribute,
+						  &blob.data, &blobsize))
+		return NULL;
+
+	blob.length = blobsize;
+	mem_ctx = talloc_new(NULL);
+
+	lp_ctx = py_default_loadparm_context(mem_ctx);
+	eadb = db_open_tdb(mem_ctx, tdbname, 50000,
+			   lpcfg_tdb_flags(lp_ctx, TDB_DEFAULT),
+			   O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
+			   DBWRAP_FLAG_NONE);
+
+	if (eadb == NULL) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+
+	ret = stat(filename, &sbuf);
+	if (ret < 0) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+
+	ZERO_STRUCT(id);
+	id.devid = sbuf.st_dev;
+	id.inode = sbuf.st_ino;
+
+	ret = xattr_tdb_setattr(eadb, &id, attribute, blob.data, blob.length, 0);
+	if (ret < 0) {
+		PyErr_SetFromErrno(PyExc_TypeError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	talloc_free(mem_ctx);
+	Py_RETURN_NONE;
+}
+
+static PyObject *py_wrap_getxattr(PyObject *self, PyObject *args)
+{
+	char *filename, *attribute, *tdbname;
+	TALLOC_CTX *mem_ctx;
+	struct loadparm_context *lp_ctx;
+	DATA_BLOB blob;
+	PyObject *ret_obj;
+	int ret;
+	ssize_t xattr_size;
+	struct db_context *eadb = NULL;
+	struct file_id id;
+	struct stat sbuf;
+
+	if (!PyArg_ParseTuple(args, "sss", &tdbname, &filename, &attribute))
+		return NULL;
+
+	mem_ctx = talloc_new(NULL);
+
+	lp_ctx = py_default_loadparm_context(mem_ctx);
+	eadb = db_open_tdb(mem_ctx, tdbname, 50000,
+			   lpcfg_tdb_flags(lp_ctx, TDB_DEFAULT),
+			   O_RDWR|O_CREAT, 0600, DBWRAP_LOCK_ORDER_2,
+			   DBWRAP_FLAG_NONE);
+
+	if (eadb == NULL) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+
+	ret = stat(filename, &sbuf);
+	if (ret < 0) {
+		PyErr_SetFromErrno(PyExc_IOError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+
+	ZERO_STRUCT(id);
+	id.devid = sbuf.st_dev;
+	id.inode = sbuf.st_ino;
+
+	xattr_size = xattr_tdb_getattr(eadb, mem_ctx, &id, attribute, &blob);
+	if (xattr_size < 0) {
+		PyErr_SetFromErrno(PyExc_TypeError);
+		talloc_free(mem_ctx);
+		return NULL;
+	}
+	ret_obj = Py_BuildValue(PYARG_BYTES_LEN, blob.data, xattr_size);
+	talloc_free(mem_ctx);
+	return ret_obj;
+}
+
+static PyMethodDef py_xattr_methods[] = {
+	{ "wrap_getxattr", (PyCFunction)py_wrap_getxattr, METH_VARARGS,
+		"wrap_getxattr(filename,attribute) -> blob\n"
+		"Retrieve given attribute on the given file." },
+	{ "wrap_setxattr", (PyCFunction)py_wrap_setxattr, METH_VARARGS,
+		"wrap_setxattr(filename,attribute,value)\n"
+		"Set the given attribute to the given value on the given file." },
+	{ "is_xattr_supported", (PyCFunction)py_is_xattr_supported, METH_NOARGS,
+		"Return true if xattr are supported on this system\n"},
+	{0}
+};
+
+static struct PyModuleDef moduledef = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "xattr_tdb",
+    .m_doc = "Python bindings for xattr manipulation.",
+    .m_size = -1,
+    .m_methods = py_xattr_methods,
+};
+
+MODULE_INIT_FUNC(xattr_tdb)
+{
+	PyObject *m;
+
+	m = PyModule_Create(&moduledef);
+
+	if (m == NULL)
+		return NULL;
+
+	return m;
+}
+
diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c
new file mode 100644
index 0000000..9f13158
--- /dev/null
+++ b/source4/ntvfs/posix/vfs_posix.c
@@ -0,0 +1,425 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+  this implements most of the POSIX NTVFS backend
+  This is the default backend
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+#include "librpc/gen_ndr/security.h"
+#include <tdb.h>
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "libcli/security/security.h"
+#include "lib/events/events.h"
+#include "param/param.h"
+
+/*
+  setup config options for a posix share
+*/
+static void pvfs_setup_options(struct pvfs_state *pvfs)
+{
+	struct share_config *scfg = pvfs->ntvfs->ctx->config;
+	char *eadb;
+	char *xattr_backend;
+	bool def_perm_override = false;
+
+	if (share_bool_option(scfg, SHARE_MAP_HIDDEN, SHARE_MAP_HIDDEN_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_MAP_HIDDEN;
+	if (share_bool_option(scfg, SHARE_MAP_ARCHIVE, SHARE_MAP_ARCHIVE_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_MAP_ARCHIVE;
+	if (share_bool_option(scfg, SHARE_MAP_SYSTEM, SHARE_MAP_SYSTEM_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_MAP_SYSTEM;
+	if (share_bool_option(scfg, SHARE_READONLY, SHARE_READONLY_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_READONLY;
+	if (share_bool_option(scfg, SHARE_STRICT_SYNC, SHARE_STRICT_SYNC_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_STRICT_SYNC;
+	if (share_bool_option(scfg, SHARE_STRICT_LOCKING, SHARE_STRICT_LOCKING_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_STRICT_LOCKING;
+	if (share_bool_option(scfg, SHARE_CI_FILESYSTEM, SHARE_CI_FILESYSTEM_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_CI_FILESYSTEM;
+	if (share_bool_option(scfg, PVFS_FAKE_OPLOCKS, PVFS_FAKE_OPLOCKS_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_FAKE_OPLOCKS;
+
+#if defined(O_DIRECTORY) && defined(O_NOFOLLOW)
+	/* set PVFS_PERM_OVERRIDE by default only if the system
+	 * supports the necessary capabilities to make it secure
+	 */
+	def_perm_override = true;
+#endif
+	if (share_bool_option(scfg, PVFS_PERM_OVERRIDE, def_perm_override))
+		pvfs->flags |= PVFS_FLAG_PERM_OVERRIDE;
+
+	/* file perm options */
+	pvfs->options.create_mask       = share_int_option(scfg,
+							   SHARE_CREATE_MASK,
+							   SHARE_CREATE_MASK_DEFAULT);
+	pvfs->options.dir_mask          = share_int_option(scfg,
+							   SHARE_DIR_MASK,
+							   SHARE_DIR_MASK_DEFAULT);
+	pvfs->options.force_dir_mode    = share_int_option(scfg,
+							   SHARE_FORCE_DIR_MODE,
+							   SHARE_FORCE_DIR_MODE_DEFAULT);
+	pvfs->options.force_create_mode = share_int_option(scfg,
+							   SHARE_FORCE_CREATE_MODE,
+							   SHARE_FORCE_CREATE_MODE_DEFAULT);
+	/* this must be a power of 2 */
+	pvfs->alloc_size_rounding = share_int_option(scfg,
+							PVFS_ALLOCATION_ROUNDING,
+							PVFS_ALLOCATION_ROUNDING_DEFAULT);
+
+	pvfs->search.inactivity_time = share_int_option(scfg,
+							PVFS_SEARCH_INACTIVITY,
+							PVFS_SEARCH_INACTIVITY_DEFAULT);
+
+#ifdef HAVE_XATTR_SUPPORT
+	if (share_bool_option(scfg, PVFS_XATTR, PVFS_XATTR_DEFAULT))
+		pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
+#endif
+
+	pvfs->sharing_violation_delay = share_int_option(scfg,
+							PVFS_SHARE_DELAY,
+							PVFS_SHARE_DELAY_DEFAULT);
+
+	pvfs->oplock_break_timeout = share_int_option(scfg,
+						      PVFS_OPLOCK_TIMEOUT,
+						      PVFS_OPLOCK_TIMEOUT_DEFAULT);
+
+	pvfs->writetime_delay = share_int_option(scfg,
+						 PVFS_WRITETIME_DELAY,
+						 PVFS_WRITETIME_DELAY_DEFAULT);
+
+	pvfs->share_name = talloc_strdup(pvfs, scfg->name);
+
+	pvfs->fs_attribs = 
+		FS_ATTR_CASE_SENSITIVE_SEARCH | 
+		FS_ATTR_CASE_PRESERVED_NAMES |
+		FS_ATTR_UNICODE_ON_DISK;
+
+	/* allow xattrs to be stored in a external tdb */
+	eadb = share_string_option(pvfs, scfg, PVFS_EADB, NULL);
+	if (eadb != NULL) {
+		pvfs->ea_db = tdb_wrap_open(
+			pvfs, eadb, 50000,
+			lpcfg_tdb_flags(pvfs->ntvfs->ctx->lp_ctx, TDB_DEFAULT),
+			O_RDWR|O_CREAT, 0600);
+		if (pvfs->ea_db != NULL) {
+			pvfs->flags |= PVFS_FLAG_XATTR_ENABLE;
+		} else {
+			DEBUG(0,("Failed to open eadb '%s' - %s\n",
+				 eadb, strerror(errno)));
+			pvfs->flags &= ~PVFS_FLAG_XATTR_ENABLE;
+		}
+		TALLOC_FREE(eadb);
+	}
+
+	if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
+		pvfs->fs_attribs |= FS_ATTR_NAMED_STREAMS;
+	}
+	if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
+		pvfs->fs_attribs |= FS_ATTR_PERSISTANT_ACLS;
+	}
+
+	pvfs->sid_cache.creator_owner = dom_sid_parse_talloc(pvfs, SID_CREATOR_OWNER);
+	pvfs->sid_cache.creator_group = dom_sid_parse_talloc(pvfs, SID_CREATOR_GROUP);
+
+	/* check if the system really supports xattrs */
+	if (pvfs->flags & PVFS_FLAG_XATTR_ENABLE) {
+		pvfs_xattr_probe(pvfs);
+	}
+
+	/* enable an ACL backend */
+	xattr_backend = share_string_option(pvfs, scfg, PVFS_ACL, "xattr");
+	pvfs->acl_ops = pvfs_acl_backend_byname(xattr_backend);
+	TALLOC_FREE(xattr_backend);
+}
+
+static int pvfs_state_destructor(struct pvfs_state *pvfs)
+{
+	struct pvfs_file *f, *fn;
+	struct pvfs_search_state *s, *sn;
+
+	/* 
+	 * make sure we cleanup files and searches before anything else
+	 * because there destructors need to acess the pvfs_state struct
+	 */
+	for (f=pvfs->files.list; f; f=fn) {
+		fn = f->next;
+		talloc_free(f);
+	}
+
+	for (s=pvfs->search.list; s; s=sn) {
+		sn = s->next;
+		talloc_free(s);
+	}
+
+	return 0;
+}
+
+/*
+  connect to a share - used when a tree_connect operation comes
+  in. For a disk based backend we needs to ensure that the base
+  directory exists (tho it doesn't need to be accessible by the user,
+  that comes later)
+*/
+static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
+			     struct ntvfs_request *req,
+			     union smb_tcon* tcon)
+{
+	struct pvfs_state *pvfs;
+	struct stat st;
+	char *base_directory;
+	NTSTATUS status;
+	const char *sharename;
+
+	switch (tcon->generic.level) {
+	case RAW_TCON_TCON:
+		sharename = tcon->tcon.in.service;
+		break;
+	case RAW_TCON_TCONX:
+		sharename = tcon->tconx.in.path;
+		break;
+	case RAW_TCON_SMB2:
+		sharename = tcon->smb2.in.path;
+		break;
+	default:
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	if (strncmp(sharename, "\\\\", 2) == 0) {
+		char *p = strchr(sharename+2, '\\');
+		if (p) {
+			sharename = p + 1;
+		}
+	}
+
+	/*
+	 * TODO: call this from ntvfs_posix_init()
+	 *       but currently we don't have a lp_ctx there
+	 */
+	status = pvfs_acl_init();
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	pvfs = talloc_zero(ntvfs, struct pvfs_state);
+	NT_STATUS_HAVE_NO_MEMORY(pvfs);
+
+	/* for simplicity of path construction, remove any trailing slash now */
+	base_directory = share_string_option(pvfs, ntvfs->ctx->config, SHARE_PATH, "");
+	NT_STATUS_HAVE_NO_MEMORY(base_directory);
+	if (strcmp(base_directory, "/") != 0) {
+		trim_string(base_directory, NULL, "/");
+	}
+
+	pvfs->ntvfs = ntvfs;
+	pvfs->base_directory = base_directory;
+
+	/* the directory must exist. Note that we deliberately don't
+	   check that it is readable */
+	if (stat(pvfs->base_directory, &st) != 0 || !S_ISDIR(st.st_mode)) {
+		DEBUG(0,("pvfs_connect: '%s' is not a directory, when connecting to [%s]\n", 
+			 pvfs->base_directory, sharename));
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
+
+	ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
+	NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
+
+	ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
+	NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
+
+	if (tcon->generic.level == RAW_TCON_TCONX) {
+		tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
+		tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
+	}
+
+	ntvfs->private_data = pvfs;
+
+	pvfs->brl_context = brlock_init(pvfs, 
+				     pvfs->ntvfs->ctx->server_id,
+				     pvfs->ntvfs->ctx->lp_ctx,
+				     pvfs->ntvfs->ctx->msg_ctx);
+	if (pvfs->brl_context == NULL) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	pvfs->odb_context = odb_init(pvfs, pvfs->ntvfs->ctx);
+	if (pvfs->odb_context == NULL) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	/* allow this to be NULL - we just disable change notify */
+	pvfs->notify_context = notify_init(pvfs, 
+					   pvfs->ntvfs->ctx->server_id,  
+					   pvfs->ntvfs->ctx->msg_ctx, 
+					   pvfs->ntvfs->ctx->lp_ctx,
+					   pvfs->ntvfs->ctx->event_ctx,
+					   pvfs->ntvfs->ctx->config);
+
+	/* allocate the search handle -> ptr tree */
+	pvfs->search.idtree = idr_init(pvfs);
+	NT_STATUS_HAVE_NO_MEMORY(pvfs->search.idtree);
+
+	status = pvfs_mangle_init(pvfs);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	pvfs_setup_options(pvfs);
+
+	talloc_set_destructor(pvfs, pvfs_state_destructor);
+
+#ifdef SIGXFSZ
+	/* who had the stupid idea to generate a signal on a large
+	   file write instead of just failing it!? */
+	BlockSignals(true, SIGXFSZ);
+#endif
+
+	return NT_STATUS_OK;
+}
+
+/*
+  disconnect from a share
+*/
+static NTSTATUS pvfs_disconnect(struct ntvfs_module_context *ntvfs)
+{
+	return NT_STATUS_OK;
+}
+
+/*
+  check if a directory exists
+*/
+static NTSTATUS pvfs_chkpath(struct ntvfs_module_context *ntvfs,
+			     struct ntvfs_request *req,
+			     union smb_chkpath *cp)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_filename *name;
+	NTSTATUS status;
+
+	/* resolve the cifs name to a posix name */
+	status = pvfs_resolve_name(pvfs, req, cp->chkpath.in.path, 0, &name);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	if (!name->exists) {
+		return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	}
+
+	if (!S_ISDIR(name->st.st_mode)) {
+		return NT_STATUS_NOT_A_DIRECTORY;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  copy a set of files
+*/
+static NTSTATUS pvfs_copy(struct ntvfs_module_context *ntvfs,
+			  struct ntvfs_request *req, struct smb_copy *cp)
+{
+	DEBUG(0,("pvfs_copy not implemented\n"));
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  return print queue info
+*/
+static NTSTATUS pvfs_lpq(struct ntvfs_module_context *ntvfs,
+			 struct ntvfs_request *req, union smb_lpq *lpq)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/* SMBtrans - not used on file shares */
+static NTSTATUS pvfs_trans(struct ntvfs_module_context *ntvfs,
+			   struct ntvfs_request *req, struct smb_trans2 *trans2)
+{
+	return NT_STATUS_ACCESS_DENIED;
+}
+
+/*
+  initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
+ */
+NTSTATUS ntvfs_posix_init(TALLOC_CTX *ctx)
+{
+	NTSTATUS ret;
+	struct ntvfs_ops ops;
+	NTVFS_CURRENT_CRITICAL_SIZES(vers);
+
+	ZERO_STRUCT(ops);
+
+	ops.type = NTVFS_DISK;
+	
+	/* fill in all the operations */
+	ops.connect_fn = pvfs_connect;
+	ops.disconnect_fn = pvfs_disconnect;
+	ops.unlink_fn = pvfs_unlink;
+	ops.chkpath_fn = pvfs_chkpath;
+	ops.qpathinfo_fn = pvfs_qpathinfo;
+	ops.setpathinfo_fn = pvfs_setpathinfo;
+	ops.open_fn = pvfs_open;
+	ops.mkdir_fn = pvfs_mkdir;
+	ops.rmdir_fn = pvfs_rmdir;
+	ops.rename_fn = pvfs_rename;
+	ops.copy_fn = pvfs_copy;
+	ops.ioctl_fn = pvfs_ioctl;
+	ops.read_fn = pvfs_read;
+	ops.write_fn = pvfs_write;
+	ops.seek_fn = pvfs_seek;
+	ops.flush_fn = pvfs_flush;
+	ops.close_fn = pvfs_close;
+	ops.exit_fn = pvfs_exit;
+	ops.lock_fn = pvfs_lock;
+	ops.setfileinfo_fn = pvfs_setfileinfo;
+	ops.qfileinfo_fn = pvfs_qfileinfo;
+	ops.fsinfo_fn = pvfs_fsinfo;
+	ops.lpq_fn = pvfs_lpq;
+	ops.search_first_fn = pvfs_search_first;
+	ops.search_next_fn = pvfs_search_next;
+	ops.search_close_fn = pvfs_search_close;
+	ops.trans_fn = pvfs_trans;
+	ops.logoff_fn = pvfs_logoff;
+	ops.async_setup_fn = pvfs_async_setup;
+	ops.cancel_fn = pvfs_cancel;
+	ops.notify_fn = pvfs_notify;
+
+	/* register ourselves with the NTVFS subsystem. We register
+	   under the name 'default' as we wish to be the default
+	   backend, and also register as 'posix' */
+	ops.name = "default";
+	ret = ntvfs_register(&ops, &vers);
+
+	if (!NT_STATUS_IS_OK(ret)) {
+		DEBUG(0,("Failed to register POSIX backend as '%s'!\n", ops.name));
+	}
+
+	ops.name = "posix";
+	ret = ntvfs_register(&ops, &vers);
+
+	if (!NT_STATUS_IS_OK(ret)) {
+		DEBUG(0,("Failed to register POSIX backend as '%s'!\n", ops.name));
+	}
+
+	if (NT_STATUS_IS_OK(ret)) {
+		ret = ntvfs_common_init();
+	}
+
+	return ret;
+}
diff --git a/source4/ntvfs/posix/vfs_posix.h b/source4/ntvfs/posix/vfs_posix.h
new file mode 100644
index 0000000..3dbd785
--- /dev/null
+++ b/source4/ntvfs/posix/vfs_posix.h
@@ -0,0 +1,290 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - structure definitions
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _VFS_POSIX_H_
+#define _VFS_POSIX_H_
+
+#include "librpc/gen_ndr/xattr.h"
+#include "system/filesys.h"
+#include "ntvfs/ntvfs.h"
+#include "ntvfs/common/ntvfs_common.h"
+#include "libcli/wbclient/wbclient.h"
+#include "lib/events/events.h"
+
+struct pvfs_wait;
+struct pvfs_oplock;
+
+/* this is the private structure for the posix vfs backend. It is used
+   to hold per-connection (per tree connect) state information */
+struct pvfs_state {
+	struct ntvfs_module_context *ntvfs;
+	const char *base_directory;
+	struct GUID *base_fs_uuid;
+
+	const char *share_name;
+	unsigned int flags;
+
+	struct pvfs_mangle_context *mangle_ctx;
+
+	struct brl_context *brl_context;
+	struct odb_context *odb_context;
+	struct notify_context *notify_context;
+
+	/* a list of pending async requests. Needed to support
+	   ntcancel */
+	struct pvfs_wait *wait_list;
+
+	/* the sharing violation timeout (nsecs) */
+	unsigned int sharing_violation_delay;
+
+	/* the oplock break timeout (secs) */
+	unsigned int oplock_break_timeout;
+
+	/* the write time update delay (nsecs) */
+	unsigned int writetime_delay;
+
+	/* filesystem attributes (see FS_ATTR_*) */
+	uint32_t fs_attribs;
+
+	/* if posix:eadb is set, then this gets setup */
+	struct tdb_wrap *ea_db;
+
+	/* the allocation size rounding */
+	uint32_t alloc_size_rounding;
+
+	struct {
+		/* the open files as DLINKLIST */
+		struct pvfs_file *list;
+	} files;
+
+	struct {
+		/* an id tree mapping open search ID to a pvfs_search_state structure */
+		struct idr_context *idtree;
+
+		/* the open searches as DLINKLIST */
+		struct pvfs_search_state *list;
+
+		/* how long to keep inactive searches around for */
+		unsigned int inactivity_time;
+	} search;
+
+	/* used to accelerate acl mapping */
+	struct {
+		const struct dom_sid *creator_owner;
+		const struct dom_sid *creator_group;		
+	} sid_cache;
+
+	/* the acl backend */
+	const struct pvfs_acl_ops *acl_ops;
+
+	/* non-flag share options */
+	struct {
+		mode_t dir_mask;
+		mode_t force_dir_mode;
+		mode_t create_mask;
+		mode_t force_create_mode;
+	} options;
+};
+
+/* this is the basic information needed about a file from the filesystem */
+struct pvfs_dos_fileinfo {
+	NTTIME create_time;
+	NTTIME access_time;
+	NTTIME write_time;
+	NTTIME change_time;
+	uint32_t attrib;
+	uint64_t alloc_size;
+	uint32_t nlink;
+	uint32_t ea_size;
+	uint64_t file_id;
+	uint32_t flags;
+};
+
+/*
+  this is the structure returned by pvfs_resolve_name(). It holds the posix details of
+  a filename passed by the client to any function
+*/
+struct pvfs_filename {
+	char *original_name;
+	char *full_name;
+	char *stream_name; /* does not include :$DATA suffix */
+	uint32_t stream_id;      /* this uses a hash, so is probabilistic */
+	bool has_wildcard;
+	bool exists;          /* true if the base filename exists */
+	bool stream_exists;   /* true if the stream exists */
+	bool allow_override;
+	struct stat st;
+	struct pvfs_dos_fileinfo dos;
+};
+
+
+/* open file handle state - encapsulates the posix fd
+
+   Note that this is separated from the pvfs_file structure in order
+   to cope with the openx DENY_DOS semantics where a 2nd DENY_DOS open
+   on the same connection gets the same low level filesystem handle,
+   rather than a new handle
+*/
+struct pvfs_file_handle {
+	int fd;
+
+	struct pvfs_filename *name;
+
+	/* a unique file key to be used for open file locking */
+	DATA_BLOB odb_locking_key;
+
+	uint32_t create_options;
+
+	/* this is set by the mode_information level. What does it do? */
+	uint32_t mode;
+
+	/* yes, we need 2 independent positions ... */
+	uint64_t seek_offset;
+	uint64_t position;
+
+	bool have_opendb_entry;
+
+	/*
+	 * we need to wait for oplock break requests from other processes,
+	 * and we need to remember the pvfs_file so we can correctly
+	 * forward the oplock break to the client
+	 */
+	struct pvfs_oplock *oplock;
+
+	/* we need this hook back to our parent for lock destruction */
+	struct pvfs_state *pvfs;
+
+	struct {
+		bool update_triggered;
+		struct tevent_timer *update_event;
+		bool update_on_close;
+		NTTIME close_time;
+		bool update_forced;
+	} write_time;
+
+	/* the open went through to completion */
+	bool open_completed;
+
+	uint8_t private_flags;
+};
+
+/* open file state */
+struct pvfs_file {
+	struct pvfs_file *next, *prev;
+	struct pvfs_file_handle *handle;
+	struct ntvfs_handle *ntvfs;
+
+	struct pvfs_state *pvfs;
+
+	uint32_t impersonation;
+	uint32_t share_access;
+	uint32_t access_mask;
+
+	/* a list of pending locks - used for locking cancel operations */
+	struct pvfs_pending_lock *pending_list;
+
+	/* a file handle to be used for byte range locking */
+	struct brl_handle *brl_handle;
+
+	/* a count of active locks - used to avoid calling brlock_close on
+	   file close */
+	uint64_t lock_count;
+
+	/* for directories, a buffer of pending notify events */
+	struct pvfs_notify_buffer *notify_buffer;
+
+	/* for directories, the state of an incomplete SMB2 Find */
+	struct pvfs_search_state *search;
+};
+
+/* the state of a search started with pvfs_search_first() */
+struct pvfs_search_state {
+	struct pvfs_search_state *prev, *next;
+	struct pvfs_state *pvfs;
+	uint16_t handle;
+	off_t current_index;
+	uint16_t search_attrib;
+	uint16_t must_attrib;
+	struct pvfs_dir *dir;
+	time_t last_used; /* monotonic clock time */
+	unsigned int num_ea_names;
+	struct ea_name *ea_names;
+	struct tevent_timer *te;
+};
+
+/* flags to pvfs_resolve_name() */
+#define PVFS_RESOLVE_WILDCARD    (1<<0)
+#define PVFS_RESOLVE_STREAMS     (1<<1)
+#define PVFS_RESOLVE_NO_OPENDB   (1<<2)
+
+/* flags in pvfs->flags */
+#define PVFS_FLAG_CI_FILESYSTEM  (1<<0) /* the filesystem is case insensitive */
+#define PVFS_FLAG_MAP_ARCHIVE    (1<<1)
+#define PVFS_FLAG_MAP_SYSTEM     (1<<2)
+#define PVFS_FLAG_MAP_HIDDEN     (1<<3)
+#define PVFS_FLAG_READONLY       (1<<4)
+#define PVFS_FLAG_STRICT_SYNC    (1<<5)
+#define PVFS_FLAG_STRICT_LOCKING (1<<6)
+#define PVFS_FLAG_XATTR_ENABLE   (1<<7)
+#define PVFS_FLAG_FAKE_OPLOCKS   (1<<8)
+#define PVFS_FLAG_PERM_OVERRIDE  (1<<10)
+
+/* forward declare some anonymous structures */
+struct pvfs_dir;
+
+/* types of notification for pvfs wait events */
+enum pvfs_wait_notice {PVFS_WAIT_EVENT, PVFS_WAIT_TIMEOUT, PVFS_WAIT_CANCEL};
+
+/*
+  state of a pending retry
+*/
+struct pvfs_odb_retry;
+
+#define PVFS_EADB			"posix:eadb"
+#define PVFS_XATTR			"posix:xattr"
+#define PVFS_FAKE_OPLOCKS		"posix:fakeoplocks"
+#define PVFS_SHARE_DELAY		"posix:sharedelay"
+#define PVFS_OPLOCK_TIMEOUT		"posix:oplocktimeout"
+#define PVFS_WRITETIME_DELAY		"posix:writetimeupdatedelay"
+#define PVFS_ALLOCATION_ROUNDING	"posix:allocationrounding"
+#define PVFS_SEARCH_INACTIVITY		"posix:searchinactivity"
+#define PVFS_ACL			"posix:acl"
+#define PVFS_PERM_OVERRIDE		"posix:permission override"
+
+#define PVFS_XATTR_DEFAULT			true
+#define PVFS_FAKE_OPLOCKS_DEFAULT		false
+#define PVFS_SHARE_DELAY_DEFAULT		1000000 /* nsecs */
+#define PVFS_OPLOCK_TIMEOUT_DEFAULT		30 /* secs */
+#define PVFS_WRITETIME_DELAY_DEFAULT		2000000 /* nsecs */
+#define PVFS_ALLOCATION_ROUNDING_DEFAULT	512
+#define PVFS_SEARCH_INACTIVITY_DEFAULT		300
+
+struct pvfs_acl_ops {
+	const char *name;
+	NTSTATUS (*acl_load)(struct pvfs_state *, struct pvfs_filename *, int , TALLOC_CTX *, 
+			     struct security_descriptor **);
+	NTSTATUS (*acl_save)(struct pvfs_state *, struct pvfs_filename *, int , struct security_descriptor *);
+};
+
+#include "ntvfs/posix/vfs_posix_proto.h"
+#include "ntvfs/posix/vfs_acl_proto.h"
+
+#endif /* _VFS_POSIX_H_ */
diff --git a/source4/ntvfs/posix/wscript_build b/source4/ntvfs/posix/wscript_build
new file mode 100644
index 0000000..649dea6
--- /dev/null
+++ b/source4/ntvfs/posix/wscript_build
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+
+if bld.CONFIG_SET('WITH_NTVFS_FILESERVER'):
+    bld.SAMBA_SUBSYSTEM('pvfs_acl',
+	                source='pvfs_acl.c',
+	                autoproto='vfs_acl_proto.h',
+	                deps='events samba-modules',
+    )
+
+
+    bld.SAMBA_MODULE('pvfs_acl_xattr',
+	             source='pvfs_acl_xattr.c',
+	             subsystem='pvfs_acl',
+	             init_function='pvfs_acl_xattr_init',
+	            deps='NDR_XATTR events'
+    )
+
+
+    bld.SAMBA_MODULE('pvfs_acl_nfs4',
+	             source='pvfs_acl_nfs4.c',
+	             subsystem='pvfs_acl',
+	             init_function='pvfs_acl_nfs4_init',
+	            deps='NDR_NFS4ACL samdb events'
+    )
+
+
+    bld.SAMBA_MODULE('ntvfs_posix',
+	             source='vfs_posix.c pvfs_util.c pvfs_search.c pvfs_dirlist.c pvfs_fileinfo.c pvfs_unlink.c pvfs_mkdir.c pvfs_open.c pvfs_read.c pvfs_flush.c pvfs_write.c pvfs_fsinfo.c pvfs_qfileinfo.c pvfs_setfileinfo.c pvfs_rename.c pvfs_resolve.c pvfs_shortname.c pvfs_lock.c pvfs_oplock.c pvfs_wait.c pvfs_seek.c pvfs_ioctl.c pvfs_xattr.c pvfs_streams.c pvfs_notify.c pvfs_sys.c xattr_system.c',
+	             autoproto='vfs_posix_proto.h',
+	             subsystem='ntvfs',
+	            init_function='ntvfs_posix_init',
+	             deps='NDR_XATTR attr ntvfs_common MESSAGING LIBWBCLIENT_OLD pvfs_acl posix_eadb',
+	             internal_module=True
+    )
+
+
+bld.SAMBA_LIBRARY('posix_eadb',
+                  source='posix_eadb.c',
+                  deps='tdb tdb-wrap samba-util',
+                  autoproto='posix_eadb_proto.h',
+                  private_library=True)
+
+pyparam_util = bld.pyembed_libname('pyparam_util')
+
+bld.SAMBA_PYTHON('python_xattr_native',
+        source='python/pyxattr_native.c',
+        deps='ndr ldb samdb samba-credentials %s attr' % pyparam_util,
+        realname='samba/xattr_native.so'
+        )
+
+bld.SAMBA_PYTHON('python_posix_eadb',
+	source='python/pyposix_eadb.c',
+	deps='%s posix_eadb tdb' % pyparam_util,
+	realname='samba/posix_eadb.so'
+	)
+
+bld.SAMBA_PYTHON('python_xattr_tdb',
+	source='python/pyxattr_tdb.c',
+	deps='%s xattr_tdb' % pyparam_util,
+	realname='samba/xattr_tdb.so'
+	)
diff --git a/source4/ntvfs/posix/xattr_system.c b/source4/ntvfs/posix/xattr_system.c
new file mode 100644
index 0000000..ebb2010
--- /dev/null
+++ b/source4/ntvfs/posix/xattr_system.c
@@ -0,0 +1,145 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - xattr support using filesystem xattrs
+
+   Copyright (C) Andrew Tridgell 2004
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "vfs_posix.h"
+
+/*
+  pull a xattr as a blob, from either a file or a file descriptor
+*/
+NTSTATUS pull_xattr_blob_system(struct pvfs_state *pvfs,
+				TALLOC_CTX *mem_ctx,
+				const char *attr_name, 
+				const char *fname, 
+				int fd, 
+				size_t estimated_size,
+				DATA_BLOB *blob)
+{
+	int ret;
+
+	*blob = data_blob_talloc(mem_ctx, NULL, estimated_size+16);
+	if (blob->data == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+again:
+	if (fd != -1) {
+		ret = fgetxattr(fd, attr_name, blob->data, estimated_size);
+	} else {
+		ret = getxattr(fname, attr_name, blob->data, estimated_size);
+	}
+	if (ret == -1 && errno == ERANGE) {
+		estimated_size *= 2;
+		blob->data = talloc_realloc(mem_ctx, blob->data, 
+					    uint8_t, estimated_size);
+		if (blob->data == NULL) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		blob->length = estimated_size;
+		goto again;
+	}
+	if (ret == -1 && errno == EPERM) {
+		struct stat statbuf;
+
+		if (fd != -1) {
+			ret = fstat(fd, &statbuf);
+		} else {
+			ret = stat(fname, &statbuf);
+		}
+		if (ret == 0) {
+			/* check if this is a directory and the sticky bit is set */
+			if (S_ISDIR(statbuf.st_mode) && (statbuf.st_mode & S_ISVTX)) {
+				/* pretend we could not find the xattr */
+
+				data_blob_free(blob);
+				return NT_STATUS_NOT_FOUND;
+
+			} else {
+				/* if not this was probably a legitimate error
+				 * reset ret and errno to the correct values */
+				errno = EPERM;
+				ret = -1;
+			}
+		}
+	}
+
+	if (ret == -1) {
+		data_blob_free(blob);
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	blob->length = ret;
+
+	return NT_STATUS_OK;
+}
+
+/*
+  push a xattr as a blob, from either a file or a file descriptor
+*/
+NTSTATUS push_xattr_blob_system(struct pvfs_state *pvfs,
+				const char *attr_name, 
+				const char *fname, 
+				int fd, 
+				const DATA_BLOB *blob)
+{
+	int ret;
+
+	if (fd != -1) {
+		ret = fsetxattr(fd, attr_name, blob->data, blob->length, 0);
+	} else {
+		ret = setxattr(fname, attr_name, blob->data, blob->length, 0);
+	}
+	if (ret == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  delete a xattr
+*/
+NTSTATUS delete_xattr_system(struct pvfs_state *pvfs, const char *attr_name, 
+			     const char *fname, int fd)
+{
+	int ret;
+
+	if (fd != -1) {
+		ret = fremovexattr(fd, attr_name);
+	} else {
+		ret = removexattr(fname, attr_name);
+	}
+	if (ret == -1) {
+		return pvfs_map_errno(pvfs, errno);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  unlink a file - cleanup any xattrs
+*/
+NTSTATUS unlink_xattr_system(struct pvfs_state *pvfs, const char *fname)
+{
+	/* nothing needs to be done for filesystem based xattrs */
+	return NT_STATUS_OK;
+}