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

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

1 files changed, 363 insertions, 0 deletions

diff --git a/source4/libcli/smb2/util.c b/source4/libcli/smb2/util.c
new file mode 100644
index 0000000..f86a149
--- /dev/null
+++ b/source4/libcli/smb2/util.c
@@ -0,0 +1,363 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   SMB2 client utility functions
+
+   Copyright (C) Andrew Tridgell 2005
+   
+   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 "libcli/raw/libcliraw.h"
+#include "libcli/raw/raw_proto.h"
+#include "libcli/smb2/smb2.h"
+#include "libcli/smb2/smb2_calls.h"
+#include "libcli/smb_composite/smb_composite.h"
+#include "librpc/gen_ndr/ndr_security.h"
+
+/*
+  simple close wrapper with SMB2
+*/
+NTSTATUS smb2_util_close(struct smb2_tree *tree, struct smb2_handle h)
+{
+	struct smb2_close c;
+
+	ZERO_STRUCT(c);
+	c.in.file.handle = h;
+
+	return smb2_close(tree, &c);
+}
+
+/*
+  unlink a file with SMB2
+*/
+NTSTATUS smb2_util_unlink(struct smb2_tree *tree, const char *fname)
+{
+	union smb_unlink io;
+	
+	ZERO_STRUCT(io);
+	io.unlink.in.pattern = fname;
+
+	return smb2_composite_unlink(tree, &io);
+}
+
+
+/*
+  rmdir with SMB2
+*/
+NTSTATUS smb2_util_rmdir(struct smb2_tree *tree, const char *dname)
+{
+	struct smb_rmdir io;
+	
+	ZERO_STRUCT(io);
+	io.in.path = dname;
+
+	return smb2_composite_rmdir(tree, &io);
+}
+
+
+/*
+  mkdir with SMB2
+*/
+NTSTATUS smb2_util_mkdir(struct smb2_tree *tree, const char *dname)
+{
+	union smb_mkdir io;
+	
+	ZERO_STRUCT(io);
+	io.mkdir.level = RAW_MKDIR_MKDIR;
+	io.mkdir.in.path = dname;
+
+	return smb2_composite_mkdir(tree, &io);
+}
+
+
+/*
+  set file attribute with SMB2
+*/
+NTSTATUS smb2_util_setatr(struct smb2_tree *tree, const char *name, uint32_t attrib)
+{
+	struct smb2_create cr = {0};
+	struct smb2_handle h1 = {{0}};
+	union smb_setfileinfo setinfo;
+	NTSTATUS status;
+
+	cr = (struct smb2_create) {
+		.in.desired_access = SEC_FILE_WRITE_ATTRIBUTE,
+		.in.share_access = NTCREATEX_SHARE_ACCESS_MASK,
+		.in.create_disposition = FILE_OPEN,
+		.in.fname = name,
+	};
+	status = smb2_create(tree, tree, &cr);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+	h1 = cr.out.file.handle;
+
+	setinfo = (union smb_setfileinfo) {
+		.basic_info.level = RAW_SFILEINFO_BASIC_INFORMATION,
+		.basic_info.in.file.handle = h1,
+		.basic_info.in.attrib = attrib,
+	};
+
+	status = smb2_setinfo_file(tree, &setinfo);
+	if (!NT_STATUS_IS_OK(status)) {
+		smb2_util_close(tree, h1);
+		return status;
+	}
+
+	smb2_util_close(tree, h1);
+	return NT_STATUS_OK;
+}
+
+
+/*
+  get file attribute with SMB2
+*/
+NTSTATUS smb2_util_getatr(struct smb2_tree *tree, const char *fname,
+			  uint16_t *attr, size_t *size, time_t *t)
+{
+	union smb_fileinfo parms;
+	NTSTATUS status;
+	struct smb2_create create_io = {0};
+
+	create_io.in.desired_access = SEC_FILE_READ_ATTRIBUTE;
+	create_io.in.share_access = NTCREATEX_SHARE_ACCESS_NONE;
+	create_io.in.create_disposition = FILE_OPEN;
+	create_io.in.fname = fname;
+	status = smb2_create(tree, tree, &create_io);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	ZERO_STRUCT(parms);
+	parms.all_info2.level = RAW_FILEINFO_SMB2_ALL_INFORMATION;
+	parms.all_info2.in.file.handle = create_io.out.file.handle;
+	status = smb2_getinfo_file(tree, tree, &parms);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	status = smb2_util_close(tree, create_io.out.file.handle);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (size) {
+		*size = parms.all_info2.out.size;
+	}
+
+	if (t) {
+		*t = parms.all_info2.out.write_time;
+	}
+
+	if (attr) {
+		*attr = parms.all_info2.out.attrib;
+	}
+
+	return status;
+}
+
+
+/* 
+   recursively descend a tree deleting all files
+   returns the number of files deleted, or -1 on error
+*/
+int smb2_deltree(struct smb2_tree *tree, const char *dname)
+{
+	NTSTATUS status;
+	uint32_t total_deleted = 0;
+	unsigned int count, i;
+	union smb_search_data *list;
+	TALLOC_CTX *tmp_ctx = talloc_new(tree);
+	struct smb2_find f;
+	struct smb2_create create_parm;
+	bool did_delete;
+
+	/* it might be a file */
+	status = smb2_util_unlink(tree, dname);
+	if (NT_STATUS_IS_OK(status)) {
+		talloc_free(tmp_ctx);
+		return 1;
+	}
+	if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_PATH_NOT_FOUND) ||
+	    NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_FILE)) {
+		talloc_free(tmp_ctx);
+		return 0;
+	}
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+		/* it could be read-only */
+		smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
+		status = smb2_util_unlink(tree, dname);
+	}
+	if (NT_STATUS_IS_OK(status)) {
+		talloc_free(tmp_ctx);
+		return 1;
+	}
+
+	ZERO_STRUCT(create_parm);
+	create_parm.in.desired_access = SEC_FILE_READ_DATA;
+	create_parm.in.share_access = 
+		NTCREATEX_SHARE_ACCESS_READ|
+		NTCREATEX_SHARE_ACCESS_WRITE;
+	create_parm.in.create_options = NTCREATEX_OPTIONS_DIRECTORY;
+	create_parm.in.create_disposition = NTCREATEX_DISP_OPEN;
+	create_parm.in.fname = dname;
+
+	status = smb2_create(tree, tmp_ctx, &create_parm);
+	if (NT_STATUS_IS_ERR(status)) {
+		DEBUG(2,("Failed to open %s - %s\n", dname, nt_errstr(status)));
+		talloc_free(tmp_ctx);
+		return -1;
+	}
+	
+
+	do {
+		did_delete = false;
+
+		ZERO_STRUCT(f);
+		f.in.file.handle       = create_parm.out.file.handle;
+		f.in.max_response_size = 0x10000;
+		f.in.level             = SMB2_FIND_NAME_INFO;
+		f.in.pattern           = "*";
+		
+		status = smb2_find_level(tree, tmp_ctx, &f, &count, &list);
+		if (NT_STATUS_IS_ERR(status)) {
+			DEBUG(2,("Failed to list %s - %s\n", 
+				 dname, nt_errstr(status)));
+			smb2_util_close(tree, create_parm.out.file.handle);
+			talloc_free(tmp_ctx);
+			return -1;
+		}
+		
+		for (i=0;i<count;i++) {
+			char *name;
+			if (strcmp(".", list[i].name_info.name.s) == 0 ||
+			    strcmp("..", list[i].name_info.name.s) == 0) {
+				continue;
+			}
+			name = talloc_asprintf(tmp_ctx, "%s\\%s", dname, list[i].name_info.name.s);
+			status = smb2_util_unlink(tree, name);
+			if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+				/* it could be read-only */
+				smb2_util_setatr(tree, name, FILE_ATTRIBUTE_NORMAL);
+				status = smb2_util_unlink(tree, name);
+			}
+			
+			if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
+				int ret;
+				ret = smb2_deltree(tree, name);
+				if (ret > 0) total_deleted += ret;
+			}
+			talloc_free(name);
+			if (NT_STATUS_IS_OK(status)) {
+				total_deleted++;
+				did_delete = true;
+			}
+		}
+	} while (did_delete);
+
+	smb2_util_close(tree, create_parm.out.file.handle);
+
+	status = smb2_util_rmdir(tree, dname);
+	if (NT_STATUS_EQUAL(status, NT_STATUS_CANNOT_DELETE)) {
+		/* it could be read-only */
+		smb2_util_setatr(tree, dname, FILE_ATTRIBUTE_NORMAL);
+		status = smb2_util_rmdir(tree, dname);
+	}
+
+	if (NT_STATUS_IS_ERR(status)) {
+		DEBUG(2,("Failed to delete %s - %s\n", 
+			 dname, nt_errstr(status)));
+		talloc_free(tmp_ctx);
+		return -1;
+	}
+
+	talloc_free(tmp_ctx);
+
+	return total_deleted;
+}
+
+/*
+  check if two SMB2 file handles are the same
+*/
+bool smb2_util_handle_equal(const struct smb2_handle h1,
+			    const struct smb2_handle h2)
+{
+	return (h1.data[0] == h2.data[0]) && (h1.data[1] == h2.data[1]);
+}
+
+bool smb2_util_handle_empty(const struct smb2_handle h)
+{
+	struct smb2_handle empty;
+
+	ZERO_STRUCT(empty);
+
+	return smb2_util_handle_equal(h, empty);
+}
+
+/****************************************************************************
+send a qpathinfo SMB_QUERY_FILE_ALT_NAME_INFO call
+****************************************************************************/
+NTSTATUS smb2_qpathinfo_alt_name(TALLOC_CTX *ctx, struct smb2_tree *tree,
+				 const char *fname, const char **alt_name)
+{
+	union smb_fileinfo parms;
+	TALLOC_CTX *mem_ctx;
+	NTSTATUS status;
+	struct smb2_create create_io = {0};
+
+	mem_ctx = talloc_new(ctx);
+	if (!mem_ctx) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	create_io.in.desired_access = SEC_FILE_READ_ATTRIBUTE;
+	create_io.in.share_access = NTCREATEX_SHARE_ACCESS_NONE;
+	create_io.in.create_disposition = FILE_OPEN;
+	create_io.in.fname = fname;
+	status = smb2_create(tree, mem_ctx, &create_io);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return status;
+	}
+
+	parms.alt_name_info.level = RAW_FILEINFO_SMB2_ALT_NAME_INFORMATION;
+	parms.alt_name_info.in.file.handle = create_io.out.file.handle;
+
+	status = smb2_getinfo_file(tree, mem_ctx, &parms);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return status;
+	}
+
+	status = smb2_util_close(tree, create_io.out.file.handle);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(mem_ctx);
+		return status;
+	}
+
+	if (!parms.alt_name_info.out.fname.s) {
+		*alt_name = talloc_strdup(ctx, "");
+	} else {
+		*alt_name = talloc_strdup(ctx,
+					  parms.alt_name_info.out.fname.s);
+	}
+
+	talloc_free(mem_ctx);
+
+	return NT_STATUS_OK;
+}