diff options
Diffstat (limited to '')
| -rw-r--r-- | source4/ntvfs/simple/README | 10 | ||||
| -rw-r--r-- | source4/ntvfs/simple/svfs.h | 38 | ||||
| -rw-r--r-- | source4/ntvfs/simple/svfs_util.c | 189 | ||||
| -rw-r--r-- | source4/ntvfs/simple/vfs_simple.c | 1112 |
4 files changed, 1349 insertions, 0 deletions
diff --git a/source4/ntvfs/simple/README b/source4/ntvfs/simple/README new file mode 100644 index 0000000..f1de5d9 --- /dev/null +++ b/source4/ntvfs/simple/README @@ -0,0 +1,10 @@ +This module (ntvfs 'simple') provides a very, very simple posix backend. + +WARNING: All file access is done as user 'root'!!! + Only use this module for testing, with only test data!!! + +For activating this module use: + +[testshare] + path = /tmp/testshare + nfvfs handler = simple diff --git a/source4/ntvfs/simple/svfs.h b/source4/ntvfs/simple/svfs.h new file mode 100644 index 0000000..e5ad3b9 --- /dev/null +++ b/source4/ntvfs/simple/svfs.h @@ -0,0 +1,38 @@ + +struct svfs_private { + struct ntvfs_module_context *ntvfs; + + /* the base directory */ + char *connectpath; + + /* a linked list of open searches */ + struct search_state *search; + + /* next available search handle */ + uint16_t next_search_handle; + + struct svfs_file *open_files; +}; + +struct svfs_dir { + unsigned int count; + char *unix_dir; + struct svfs_dirfile { + char *name; + struct stat st; + } *files; +}; + +struct svfs_file { + struct svfs_file *next, *prev; + int fd; + struct ntvfs_handle *handle; + char *name; +}; + +struct search_state { + struct search_state *next, *prev; + uint16_t handle; + unsigned int current_index; + struct svfs_dir *dir; +}; diff --git a/source4/ntvfs/simple/svfs_util.c b/source4/ntvfs/simple/svfs_util.c new file mode 100644 index 0000000..d1901ae --- /dev/null +++ b/source4/ntvfs/simple/svfs_util.c @@ -0,0 +1,189 @@ +/* + Unix SMB/CIFS implementation. + + simple NTVFS filesystem backend + + Copyright (C) Andrew Tridgell 2003 + + 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 simple backend +*/ + +#include "includes.h" +#include "system/filesys.h" +#include "svfs.h" +#include "system/time.h" +#include "system/dir.h" +#include "ntvfs/ntvfs.h" +#include "ntvfs/simple/proto.h" + +/* + convert a windows path to a unix path - don't do any manging or case sensitive handling +*/ +char *svfs_unix_path(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, const char *name) +{ + struct svfs_private *p = ntvfs->private_data; + char *ret; + char *name_lower = strlower_talloc(p, name); + + if (*name != '\\') { + ret = talloc_asprintf(req, "%s/%s", p->connectpath, name_lower); + } else { + ret = talloc_asprintf(req, "%s%s", p->connectpath, name_lower); + } + all_string_sub(ret, "\\", "/", 0); + talloc_free(name_lower); + return ret; +} + + +/* + read a directory and find all matching file names and stat info + returned names are separate unix and DOS names. The returned names + are relative to the directory +*/ +struct svfs_dir *svfs_list_unix(TALLOC_CTX *mem_ctx, struct ntvfs_request *req, const char *unix_path) +{ + char *p, *mask; + struct svfs_dir *dir; + DIR *odir; + struct dirent *dent; + unsigned int allocated = 0; + char *low_mask; + + dir = talloc(mem_ctx, struct svfs_dir); + if (!dir) { return NULL; } + + dir->count = 0; + dir->files = 0; + + /* find the base directory */ + p = strrchr(unix_path, '/'); + if (!p) { return NULL; } + + dir->unix_dir = talloc_strndup(mem_ctx, unix_path, PTR_DIFF(p, unix_path)); + if (!dir->unix_dir) { return NULL; } + + /* the wildcard pattern is the last part */ + mask = p+1; + + low_mask = strlower_talloc(mem_ctx, mask); + if (!low_mask) { return NULL; } + + odir = opendir(dir->unix_dir); + if (!odir) { return NULL; } + + while ((dent = readdir(odir))) { + unsigned int i = dir->count; + char *full_name; + char *low_name; + + if (strchr(dent->d_name, ':') && !strchr(unix_path, ':')) { + /* don't show streams in dir listing */ + continue; + } + + low_name = strlower_talloc(mem_ctx, dent->d_name); + if (!low_name) { continue; } + + /* check it matches the wildcard pattern */ + if (ms_fnmatch_protocol(low_mask, low_name, PROTOCOL_NT1, + false) != 0) { + continue; + } + + if (dir->count >= allocated) { + allocated = (allocated + 100) * 1.2; + dir->files = talloc_realloc(dir, dir->files, struct svfs_dirfile, allocated); + if (!dir->files) { + closedir(odir); + return NULL; + } + } + + dir->files[i].name = low_name; + if (!dir->files[i].name) { continue; } + + full_name = talloc_asprintf(mem_ctx, "%s/%s", dir->unix_dir, + dir->files[i].name); + if (!full_name) { continue; } + + if (stat(full_name, &dir->files[i].st) == 0) { + dir->count++; + } + + talloc_free(full_name); + } + + closedir(odir); + + return dir; +} + +/* + read a directory and find all matching file names and stat info + returned names are separate unix and DOS names. The returned names + are relative to the directory +*/ +struct svfs_dir *svfs_list(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req, const char *pattern) +{ + struct svfs_private *p = ntvfs->private_data; + char *unix_path; + + unix_path = svfs_unix_path(ntvfs, req, pattern); + if (!unix_path) { return NULL; } + + return svfs_list_unix(p, req, unix_path); +} + + +/******************************************************************* +set the time on a file via file descriptor +*******************************************************************/ +int svfs_file_utime(int fd, struct utimbuf *times) +{ + char *fd_path = NULL; + int ret; + + ret = asprintf(&fd_path, "/proc/self/%d", fd); + if (ret == -1) { + errno = ENOMEM; + return -1; + } + + if (!fd_path) { + errno = ENOMEM; + return -1; + } + + ret = utime(fd_path, times); + free(fd_path); + return ret; +} + + +/* + map a unix file attrib to a DOS attribute +*/ +uint16_t svfs_unix_to_dos_attrib(mode_t mode) +{ + uint16_t ret = 0; + if (S_ISDIR(mode)) ret |= FILE_ATTRIBUTE_DIRECTORY; + if (!(mode & S_IWUSR)) ret |= FILE_ATTRIBUTE_READONLY; + return ret; +} + diff --git a/source4/ntvfs/simple/vfs_simple.c b/source4/ntvfs/simple/vfs_simple.c new file mode 100644 index 0000000..2fe2084 --- /dev/null +++ b/source4/ntvfs/simple/vfs_simple.c @@ -0,0 +1,1112 @@ +/* + Unix SMB/CIFS implementation. + + simple NTVFS filesystem backend + + Copyright (C) Andrew Tridgell 2003 + + 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 a very simple NTVFS filesystem backend. + + this backend largely ignores the POSIX -> CIFS mappings, just doing absolutely + minimal work to give a working backend. +*/ + +#include "includes.h" +#include "system/dir.h" +#include "system/filesys.h" +#include "svfs.h" +#include "system/time.h" +#include "../lib/util/dlinklist.h" +#include "ntvfs/ntvfs.h" +#include "ntvfs/simple/proto.h" + +#ifndef O_DIRECTORY +#define O_DIRECTORY 0 +#endif + +#define CHECK_READ_ONLY(req) do { if (share_bool_option(ntvfs->ctx->config, SHARE_READONLY, true)) return NT_STATUS_ACCESS_DENIED; } while (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 svfs_connect(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_tcon* tcon) +{ + struct stat st; + struct svfs_private *p; + struct share_config *scfg = ntvfs->ctx->config; + 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 *p2 = strchr(sharename+2, '\\'); + if (p2) { + sharename = p2 + 1; + } + } + + p = talloc(ntvfs, struct svfs_private); + NT_STATUS_HAVE_NO_MEMORY(p); + p->ntvfs = ntvfs; + p->next_search_handle = 0; + p->connectpath = share_string_option(p, scfg, SHARE_PATH, ""); + p->open_files = NULL; + p->search = NULL; + + /* the directory must exist */ + if (stat(p->connectpath, &st) != 0 || !S_ISDIR(st.st_mode)) { + DEBUG(0,("'%s' is not a directory, when connecting to [%s]\n", + p->connectpath, 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 = p; + + return NT_STATUS_OK; +} + +/* + disconnect from a share +*/ +static NTSTATUS svfs_disconnect(struct ntvfs_module_context *ntvfs) +{ + return NT_STATUS_OK; +} + +/* + find open file handle given fd +*/ +static struct svfs_file *find_fd(struct svfs_private *sp, struct ntvfs_handle *handle) +{ + struct svfs_file *f; + void *p; + + p = ntvfs_handle_get_backend_data(handle, sp->ntvfs); + if (!p) return NULL; + + f = talloc_get_type(p, struct svfs_file); + if (!f) return NULL; + + return f; +} + +/* + 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) +*/ +static NTSTATUS svfs_unlink(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_unlink *unl) +{ + char *unix_path; + + CHECK_READ_ONLY(req); + + unix_path = svfs_unix_path(ntvfs, req, unl->unlink.in.pattern); + + /* ignoring wildcards ... */ + if (unlink(unix_path) == -1) { + return map_nt_error_from_unix_common(errno); + } + + return NT_STATUS_OK; +} + + +/* + ioctl interface - we don't do any +*/ +static NTSTATUS svfs_ioctl(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_ioctl *io) +{ + return NT_STATUS_INVALID_PARAMETER; +} + +/* + check if a directory exists +*/ +static NTSTATUS svfs_chkpath(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_chkpath *cp) +{ + char *unix_path; + struct stat st; + + unix_path = svfs_unix_path(ntvfs, req, cp->chkpath.in.path); + + if (stat(unix_path, &st) == -1) { + return map_nt_error_from_unix_common(errno); + } + + if (!S_ISDIR(st.st_mode)) { + return NT_STATUS_NOT_A_DIRECTORY; + } + + return NT_STATUS_OK; +} + +/* + build a file_id from a stat struct +*/ +static uint64_t svfs_file_id(struct stat *st) +{ + uint64_t ret = st->st_ino; + ret <<= 32; + ret |= st->st_dev; + return ret; +} + +/* + approximately map a struct stat to a generic fileinfo struct +*/ +static NTSTATUS svfs_map_fileinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_fileinfo *info, + struct stat *st, const char *unix_path) +{ + struct svfs_dir *dir = NULL; + char *pattern = NULL; + int i, ret; + const char *s, *short_name; + + s = strrchr(unix_path, '/'); + if (s) { + short_name = s+1; + } else { + short_name = ""; + } + + ret = asprintf(&pattern, "%s:*", unix_path); + if (ret == -1) { + return NT_STATUS_NO_MEMORY; + } + + if (pattern) { + dir = svfs_list_unix(req, req, pattern); + } + + unix_to_nt_time(&info->generic.out.create_time, st->st_ctime); + unix_to_nt_time(&info->generic.out.access_time, st->st_atime); + unix_to_nt_time(&info->generic.out.write_time, st->st_mtime); + unix_to_nt_time(&info->generic.out.change_time, st->st_mtime); + info->generic.out.alloc_size = st->st_size; + info->generic.out.size = st->st_size; + info->generic.out.attrib = svfs_unix_to_dos_attrib(st->st_mode); + info->generic.out.alloc_size = st->st_blksize * st->st_blocks; + info->generic.out.nlink = st->st_nlink; + info->generic.out.directory = S_ISDIR(st->st_mode) ? 1 : 0; + info->generic.out.file_id = svfs_file_id(st); + /* REWRITE: TODO stuff in here */ + info->generic.out.delete_pending = 0; + info->generic.out.ea_size = 0; + info->generic.out.num_eas = 0; + info->generic.out.fname.s = talloc_strdup(req, short_name); + info->generic.out.alt_fname.s = talloc_strdup(req, short_name); + info->generic.out.compressed_size = 0; + info->generic.out.format = 0; + info->generic.out.unit_shift = 0; + info->generic.out.chunk_shift = 0; + info->generic.out.cluster_shift = 0; + + info->generic.out.access_flags = 0; + info->generic.out.position = 0; + info->generic.out.mode = 0; + info->generic.out.alignment_requirement = 0; + info->generic.out.reparse_tag = 0; + info->generic.out.num_streams = 0; + /* setup a single data stream */ + info->generic.out.num_streams = 1 + (dir?dir->count:0); + info->generic.out.streams = talloc_array(req, + struct stream_struct, + info->generic.out.num_streams); + if (!info->generic.out.streams) { + return NT_STATUS_NO_MEMORY; + } + info->generic.out.streams[0].size = st->st_size; + info->generic.out.streams[0].alloc_size = st->st_size; + info->generic.out.streams[0].stream_name.s = talloc_strdup(req,"::$DATA"); + + for (i=0;dir && i<dir->count;i++) { + s = strchr(dir->files[i].name, ':'); + info->generic.out.streams[1+i].size = dir->files[i].st.st_size; + info->generic.out.streams[1+i].alloc_size = dir->files[i].st.st_size; + info->generic.out.streams[1+i].stream_name.s = s?s:dir->files[i].name; + } + + return NT_STATUS_OK; +} + +/* + return info on a pathname +*/ +static NTSTATUS svfs_qpathinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_fileinfo *info) +{ + char *unix_path; + struct stat st; + + DEBUG(19,("svfs_qpathinfo: file %s level 0x%x\n", info->generic.in.file.path, info->generic.level)); + if (info->generic.level != RAW_FILEINFO_GENERIC) { + return ntvfs_map_qpathinfo(ntvfs, req, info); + } + + unix_path = svfs_unix_path(ntvfs, req, info->generic.in.file.path); + DEBUG(19,("svfs_qpathinfo: file %s\n", unix_path)); + if (stat(unix_path, &st) == -1) { + DEBUG(19,("svfs_qpathinfo: file %s errno=%d\n", unix_path, errno)); + return map_nt_error_from_unix_common(errno); + } + DEBUG(19,("svfs_qpathinfo: file %s, stat done\n", unix_path)); + return svfs_map_fileinfo(ntvfs, req, info, &st, unix_path); +} + +/* + query info on a open file +*/ +static NTSTATUS svfs_qfileinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_fileinfo *info) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + struct stat st; + + if (info->generic.level != RAW_FILEINFO_GENERIC) { + return ntvfs_map_qfileinfo(ntvfs, req, info); + } + + f = find_fd(p, info->generic.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + + if (fstat(f->fd, &st) == -1) { + return map_nt_error_from_unix_common(errno); + } + + return svfs_map_fileinfo(ntvfs, req,info, &st, f->name); +} + + +/* + open a file +*/ +static NTSTATUS svfs_open(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_open *io) +{ + struct svfs_private *p = ntvfs->private_data; + char *unix_path; + struct stat st; + int fd, flags; + struct svfs_file *f; + int create_flags, rdwr_flags; + bool readonly; + NTSTATUS status; + struct ntvfs_handle *handle; + + if (io->generic.level != RAW_OPEN_GENERIC) { + return ntvfs_map_open(ntvfs, req, io); + } + + readonly = share_bool_option(ntvfs->ctx->config, SHARE_READONLY, SHARE_READONLY_DEFAULT); + if (readonly) { + create_flags = 0; + rdwr_flags = O_RDONLY; + } else { + create_flags = O_CREAT; + rdwr_flags = O_RDWR; + } + + unix_path = svfs_unix_path(ntvfs, req, io->ntcreatex.in.fname); + + switch (io->generic.in.open_disposition) { + case NTCREATEX_DISP_SUPERSEDE: + case NTCREATEX_DISP_OVERWRITE_IF: + flags = create_flags | O_TRUNC; + break; + case NTCREATEX_DISP_OPEN: + case NTCREATEX_DISP_OVERWRITE: + flags = 0; + break; + case NTCREATEX_DISP_CREATE: + flags = create_flags | O_EXCL; + break; + case NTCREATEX_DISP_OPEN_IF: + flags = create_flags; + break; + default: + flags = 0; + break; + } + + flags |= rdwr_flags; + + if (io->generic.in.create_options & NTCREATEX_OPTIONS_DIRECTORY) { + flags = O_RDONLY | O_DIRECTORY; + if (readonly) { + goto do_open; + } + switch (io->generic.in.open_disposition) { + case NTCREATEX_DISP_CREATE: + if (mkdir(unix_path, 0755) == -1) { + DEBUG(9,("svfs_open: mkdir %s errno=%d\n", unix_path, errno)); + return map_nt_error_from_unix_common(errno); + } + break; + case NTCREATEX_DISP_OPEN_IF: + if (mkdir(unix_path, 0755) == -1 && errno != EEXIST) { + DEBUG(9,("svfs_open: mkdir %s errno=%d\n", unix_path, errno)); + return map_nt_error_from_unix_common(errno); + } + break; + } + } + +do_open: + fd = open(unix_path, flags, 0644); + if (fd == -1) { + return map_nt_error_from_unix_common(errno); + } + + if (fstat(fd, &st) == -1) { + DEBUG(9,("svfs_open: fstat errno=%d\n", errno)); + close(fd); + return map_nt_error_from_unix_common(errno); + } + + status = ntvfs_handle_new(ntvfs, req, &handle); + NT_STATUS_NOT_OK_RETURN(status); + + f = talloc(handle, struct svfs_file); + if (f == NULL) { + close(fd); + return NT_STATUS_NO_MEMORY; + } + f->fd = fd; + f->name = talloc_strdup(f, unix_path); + NT_STATUS_HAVE_NO_MEMORY(f->name); + + DLIST_ADD(p->open_files, f); + + status = ntvfs_handle_set_backend_data(handle, ntvfs, f); + NT_STATUS_NOT_OK_RETURN(status); + + ZERO_STRUCT(io->generic.out); + + unix_to_nt_time(&io->generic.out.create_time, st.st_ctime); + unix_to_nt_time(&io->generic.out.access_time, st.st_atime); + unix_to_nt_time(&io->generic.out.write_time, st.st_mtime); + unix_to_nt_time(&io->generic.out.change_time, st.st_mtime); + io->generic.out.file.ntvfs = handle; + io->generic.out.alloc_size = st.st_size; + io->generic.out.size = st.st_size; + io->generic.out.attrib = svfs_unix_to_dos_attrib(st.st_mode); + io->generic.out.is_directory = S_ISDIR(st.st_mode) ? 1 : 0; + + return NT_STATUS_OK; +} + +/* + create a directory +*/ +static NTSTATUS svfs_mkdir(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_mkdir *md) +{ + char *unix_path; + + CHECK_READ_ONLY(req); + + if (md->generic.level != RAW_MKDIR_MKDIR) { + return NT_STATUS_INVALID_LEVEL; + } + + unix_path = svfs_unix_path(ntvfs, req, md->mkdir.in.path); + + if (mkdir(unix_path, 0777) == -1) { + return map_nt_error_from_unix_common(errno); + } + + return NT_STATUS_OK; +} + +/* + remove a directory +*/ +static NTSTATUS svfs_rmdir(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, struct smb_rmdir *rd) +{ + char *unix_path; + + CHECK_READ_ONLY(req); + + unix_path = svfs_unix_path(ntvfs, req, rd->in.path); + + if (rmdir(unix_path) == -1) { + return map_nt_error_from_unix_common(errno); + } + + return NT_STATUS_OK; +} + +/* + rename a set of files +*/ +static NTSTATUS svfs_rename(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_rename *ren) +{ + char *unix_path1, *unix_path2; + + CHECK_READ_ONLY(req); + + if (ren->generic.level != RAW_RENAME_RENAME) { + return NT_STATUS_INVALID_LEVEL; + } + + unix_path1 = svfs_unix_path(ntvfs, req, ren->rename.in.pattern1); + unix_path2 = svfs_unix_path(ntvfs, req, ren->rename.in.pattern2); + + if (rename(unix_path1, unix_path2) == -1) { + return map_nt_error_from_unix_common(errno); + } + + return NT_STATUS_OK; +} + +/* + copy a set of files +*/ +static NTSTATUS svfs_copy(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, struct smb_copy *cp) +{ + return NT_STATUS_NOT_SUPPORTED; +} + +/* + read from a file +*/ +static NTSTATUS svfs_read(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_read *rd) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + ssize_t ret; + + if (rd->generic.level != RAW_READ_READX) { + return NT_STATUS_NOT_SUPPORTED; + } + + f = find_fd(p, rd->readx.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + + ret = pread(f->fd, + rd->readx.out.data, + rd->readx.in.maxcnt, + rd->readx.in.offset); + if (ret == -1) { + return map_nt_error_from_unix_common(errno); + } + + rd->readx.out.nread = ret; + rd->readx.out.remaining = 0; /* should fill this in? */ + rd->readx.out.compaction_mode = 0; + + return NT_STATUS_OK; +} + +/* + write to a file +*/ +static NTSTATUS svfs_write(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_write *wr) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + ssize_t ret; + + if (wr->generic.level != RAW_WRITE_WRITEX) { + return ntvfs_map_write(ntvfs, req, wr); + } + + CHECK_READ_ONLY(req); + + f = find_fd(p, wr->writex.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + + ret = pwrite(f->fd, + wr->writex.in.data, + wr->writex.in.count, + wr->writex.in.offset); + if (ret == -1) { + return map_nt_error_from_unix_common(errno); + } + + wr->writex.out.nwritten = ret; + wr->writex.out.remaining = 0; /* should fill this in? */ + + return NT_STATUS_OK; +} + +/* + seek in a file +*/ +static NTSTATUS svfs_seek(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_seek *io) +{ + return NT_STATUS_NOT_SUPPORTED; +} + +/* + flush a file +*/ +static NTSTATUS svfs_flush(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_flush *io) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + + switch (io->generic.level) { + case RAW_FLUSH_FLUSH: + case RAW_FLUSH_SMB2: + /* ignore the additional unknown option in SMB2 */ + f = find_fd(p, io->generic.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + fsync(f->fd); + return NT_STATUS_OK; + + case RAW_FLUSH_ALL: + for (f=p->open_files;f;f=f->next) { + fsync(f->fd); + } + return NT_STATUS_OK; + } + + return NT_STATUS_INVALID_LEVEL; +} + +/* + close a file +*/ +static NTSTATUS svfs_close(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_close *io) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + + if (io->generic.level != RAW_CLOSE_CLOSE) { + /* we need a mapping function */ + return NT_STATUS_INVALID_LEVEL; + } + + f = find_fd(p, io->close.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + + if (close(f->fd) == -1) { + return map_nt_error_from_unix_common(errno); + } + + DLIST_REMOVE(p->open_files, f); + talloc_free(f->name); + talloc_free(f); + + return NT_STATUS_OK; +} + +/* + exit - closing files +*/ +static NTSTATUS svfs_exit(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req) +{ + return NT_STATUS_NOT_SUPPORTED; +} + +/* + logoff - closing files +*/ +static NTSTATUS svfs_logoff(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req) +{ + return NT_STATUS_NOT_SUPPORTED; +} + +/* + setup for an async call +*/ +static NTSTATUS svfs_async_setup(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + void *private_data) +{ + return NT_STATUS_OK; +} + +/* + cancel an async call +*/ +static NTSTATUS svfs_cancel(struct ntvfs_module_context *ntvfs, struct ntvfs_request *req) +{ + return NT_STATUS_UNSUCCESSFUL; +} + +/* + lock a byte range +*/ +static NTSTATUS svfs_lock(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_lock *lck) +{ + DEBUG(0,("REWRITE: not doing byte range locking!\n")); + return NT_STATUS_OK; +} + +/* + set info on a pathname +*/ +static NTSTATUS svfs_setpathinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_setfileinfo *st) +{ + CHECK_READ_ONLY(req); + + return NT_STATUS_NOT_SUPPORTED; +} + +/* + set info on a open file +*/ +static NTSTATUS svfs_setfileinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, + union smb_setfileinfo *info) +{ + struct svfs_private *p = ntvfs->private_data; + struct svfs_file *f; + struct utimbuf unix_times; + + CHECK_READ_ONLY(req); + + f = find_fd(p, info->generic.in.file.ntvfs); + if (!f) { + return NT_STATUS_INVALID_HANDLE; + } + + switch (info->generic.level) { + case RAW_SFILEINFO_END_OF_FILE_INFO: + case RAW_SFILEINFO_END_OF_FILE_INFORMATION: + if (ftruncate(f->fd, + info->end_of_file_info.in.size) == -1) { + return map_nt_error_from_unix_common(errno); + } + break; + case RAW_SFILEINFO_SETATTRE: + unix_times.actime = info->setattre.in.access_time; + unix_times.modtime = info->setattre.in.write_time; + + if (unix_times.actime == 0 && unix_times.modtime == 0) { + break; + } + + /* set modify time = to access time if modify time was 0 */ + if (unix_times.actime != 0 && unix_times.modtime == 0) { + unix_times.modtime = unix_times.actime; + } + + /* Set the date on this file */ + if (svfs_file_utime(f->fd, &unix_times) != 0) { + return NT_STATUS_ACCESS_DENIED; + } + break; + default: + DEBUG(2,("svfs_setfileinfo: level %d not implemented\n", + info->generic.level)); + return NT_STATUS_NOT_IMPLEMENTED; + } + return NT_STATUS_OK; +} + + +/* + return filesystem space info +*/ +static NTSTATUS svfs_fsinfo(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_fsinfo *fs) +{ + struct svfs_private *p = ntvfs->private_data; + struct stat st; + + if (fs->generic.level != RAW_QFS_GENERIC) { + return ntvfs_map_fsinfo(ntvfs, req, fs); + } + + if (sys_fsusage(p->connectpath, + &fs->generic.out.blocks_free, + &fs->generic.out.blocks_total) == -1) { + return map_nt_error_from_unix_common(errno); + } + + fs->generic.out.block_size = 512; + + if (stat(p->connectpath, &st) != 0) { + return NT_STATUS_DISK_CORRUPT_ERROR; + } + + fs->generic.out.fs_id = st.st_ino; + unix_to_nt_time(&fs->generic.out.create_time, st.st_ctime); + fs->generic.out.serial_number = st.st_ino; + fs->generic.out.fs_attr = 0; + fs->generic.out.max_file_component_length = 255; + fs->generic.out.device_type = 0; + fs->generic.out.device_characteristics = 0; + fs->generic.out.quota_soft = 0; + fs->generic.out.quota_hard = 0; + fs->generic.out.quota_flags = 0; + fs->generic.out.volume_name = talloc_strdup(req, ntvfs->ctx->config->name); + fs->generic.out.fs_type = ntvfs->ctx->fs_type; + + return NT_STATUS_OK; +} + +#if 0 +/* + return filesystem attribute info +*/ +static NTSTATUS svfs_fsattr(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_fsattr *fs) +{ + struct stat st; + struct svfs_private *p = ntvfs->private_data; + + if (fs->generic.level != RAW_FSATTR_GENERIC) { + return ntvfs_map_fsattr(ntvfs, req, fs); + } + + if (stat(p->connectpath, &st) == -1) { + return map_nt_error_from_unix_common(errno); + } + + unix_to_nt_time(&fs->generic.out.create_time, st.st_ctime); + fs->generic.out.fs_attr = + FILE_CASE_PRESERVED_NAMES | + FILE_CASE_SENSITIVE_SEARCH | + FILE_PERSISTENT_ACLS; + fs->generic.out.max_file_component_length = 255; + fs->generic.out.serial_number = 1; + fs->generic.out.fs_type = talloc_strdup(req, "NTFS"); + fs->generic.out.volume_name = talloc_strdup(req, + lpcfg_servicename(req->tcon->service)); + + return NT_STATUS_OK; +} +#endif + +/* + return print queue info +*/ +static NTSTATUS svfs_lpq(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_lpq *lpq) +{ + return NT_STATUS_NOT_SUPPORTED; +} + +/* + list files in a directory matching a wildcard pattern +*/ +static NTSTATUS svfs_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 *)) +{ + struct svfs_dir *dir; + int i; + struct svfs_private *p = ntvfs->private_data; + struct search_state *search; + union smb_search_data file; + unsigned int max_count; + + if (io->generic.level != RAW_SEARCH_TRANS2) { + return NT_STATUS_NOT_SUPPORTED; + } + + if (io->generic.data_level != RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO) { + return NT_STATUS_NOT_SUPPORTED; + } + + search = talloc_zero(p, struct search_state); + if (!search) { + return NT_STATUS_NO_MEMORY; + } + + max_count = io->t2ffirst.in.max_count; + + dir = svfs_list(ntvfs, req, io->t2ffirst.in.pattern); + if (!dir) { + return NT_STATUS_FOOBAR; + } + + search->handle = p->next_search_handle; + search->dir = dir; + + if (dir->count < max_count) { + max_count = dir->count; + } + + for (i=0; i < max_count;i++) { + ZERO_STRUCT(file); + unix_to_nt_time(&file.both_directory_info.create_time, dir->files[i].st.st_ctime); + unix_to_nt_time(&file.both_directory_info.access_time, dir->files[i].st.st_atime); + unix_to_nt_time(&file.both_directory_info.write_time, dir->files[i].st.st_mtime); + unix_to_nt_time(&file.both_directory_info.change_time, dir->files[i].st.st_mtime); + file.both_directory_info.name.s = dir->files[i].name; + file.both_directory_info.short_name.s = dir->files[i].name; + file.both_directory_info.size = dir->files[i].st.st_size; + file.both_directory_info.attrib = svfs_unix_to_dos_attrib(dir->files[i].st.st_mode); + + if (!callback(search_private, &file)) { + break; + } + } + + search->current_index = i; + + io->t2ffirst.out.count = i; + io->t2ffirst.out.handle = search->handle; + io->t2ffirst.out.end_of_search = (i == dir->count) ? 1 : 0; + + /* work out if we are going to keep the search state */ + if ((io->t2ffirst.in.flags & FLAG_TRANS2_FIND_CLOSE) || + ((io->t2ffirst.in.flags & FLAG_TRANS2_FIND_CLOSE_IF_END) && (i == dir->count))) { + talloc_free(search); + } else { + p->next_search_handle++; + DLIST_ADD(p->search, search); + } + + return NT_STATUS_OK; +} + +/* continue a search */ +static NTSTATUS svfs_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 *)) +{ + struct svfs_dir *dir; + int i; + struct svfs_private *p = ntvfs->private_data; + struct search_state *search; + union smb_search_data file; + unsigned int max_count; + + if (io->generic.level != RAW_SEARCH_TRANS2) { + return NT_STATUS_NOT_SUPPORTED; + } + + if (io->generic.data_level != RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO) { + return NT_STATUS_NOT_SUPPORTED; + } + + for (search=p->search; search; search = search->next) { + if (search->handle == io->t2fnext.in.handle) break; + } + + if (!search) { + /* we didn't find the search handle */ + return NT_STATUS_FOOBAR; + } + + dir = search->dir; + + /* the client might be asking for something other than just continuing + with the search */ + if (!(io->t2fnext.in.flags & FLAG_TRANS2_FIND_CONTINUE) && + (io->t2fnext.in.flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) && + io->t2fnext.in.last_name && *io->t2fnext.in.last_name) { + /* look backwards first */ + for (i=search->current_index; i > 0; i--) { + if (strcmp(io->t2fnext.in.last_name, dir->files[i-1].name) == 0) { + search->current_index = i; + goto found; + } + } + + /* then look forwards */ + for (i=search->current_index+1; i <= dir->count; i++) { + if (strcmp(io->t2fnext.in.last_name, dir->files[i-1].name) == 0) { + search->current_index = i; + goto found; + } + } + } + +found: + max_count = search->current_index + io->t2fnext.in.max_count; + + if (max_count > dir->count) { + max_count = dir->count; + } + + for (i = search->current_index; i < max_count;i++) { + ZERO_STRUCT(file); + unix_to_nt_time(&file.both_directory_info.create_time, dir->files[i].st.st_ctime); + unix_to_nt_time(&file.both_directory_info.access_time, dir->files[i].st.st_atime); + unix_to_nt_time(&file.both_directory_info.write_time, dir->files[i].st.st_mtime); + unix_to_nt_time(&file.both_directory_info.change_time, dir->files[i].st.st_mtime); + file.both_directory_info.name.s = dir->files[i].name; + file.both_directory_info.short_name.s = dir->files[i].name; + file.both_directory_info.size = dir->files[i].st.st_size; + file.both_directory_info.attrib = svfs_unix_to_dos_attrib(dir->files[i].st.st_mode); + + if (!callback(search_private, &file)) { + break; + } + } + + io->t2fnext.out.count = i - search->current_index; + io->t2fnext.out.end_of_search = (i == dir->count) ? 1 : 0; + + search->current_index = i; + + /* 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) && (i == dir->count))) { + DLIST_REMOVE(p->search, search); + talloc_free(search); + } + + return NT_STATUS_OK; +} + +/* close a search */ +static NTSTATUS svfs_search_close(struct ntvfs_module_context *ntvfs, + struct ntvfs_request *req, union smb_search_close *io) +{ + struct svfs_private *p = ntvfs->private_data; + struct search_state *search; + + for (search=p->search; search; search = search->next) { + if (search->handle == io->findclose.in.handle) break; + } + + if (!search) { + /* we didn't find the search handle */ + return NT_STATUS_FOOBAR; + } + + DLIST_REMOVE(p->search, search); + talloc_free(search); + + return NT_STATUS_OK; +} + +/* SMBtrans - not used on file shares */ +static NTSTATUS svfs_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_simple_init(TALLOC_CTX *ctx) +{ + NTSTATUS ret; + struct ntvfs_ops ops; + NTVFS_CURRENT_CRITICAL_SIZES(vers); + + ZERO_STRUCT(ops); + + /* fill in all the operations */ + ops.connect_fn = svfs_connect; + ops.disconnect_fn = svfs_disconnect; + ops.unlink_fn = svfs_unlink; + ops.chkpath_fn = svfs_chkpath; + ops.qpathinfo_fn = svfs_qpathinfo; + ops.setpathinfo_fn = svfs_setpathinfo; + ops.open_fn = svfs_open; + ops.mkdir_fn = svfs_mkdir; + ops.rmdir_fn = svfs_rmdir; + ops.rename_fn = svfs_rename; + ops.copy_fn = svfs_copy; + ops.ioctl_fn = svfs_ioctl; + ops.read_fn = svfs_read; + ops.write_fn = svfs_write; + ops.seek_fn = svfs_seek; + ops.flush_fn = svfs_flush; + ops.close_fn = svfs_close; + ops.exit_fn = svfs_exit; + ops.lock_fn = svfs_lock; + ops.setfileinfo_fn = svfs_setfileinfo; + ops.qfileinfo_fn = svfs_qfileinfo; + ops.fsinfo_fn = svfs_fsinfo; + ops.lpq_fn = svfs_lpq; + ops.search_first_fn = svfs_search_first; + ops.search_next_fn = svfs_search_next; + ops.search_close_fn = svfs_search_close; + ops.trans_fn = svfs_trans; + ops.logoff_fn = svfs_logoff; + ops.async_setup_fn = svfs_async_setup; + ops.cancel_fn = svfs_cancel; + + /* register ourselves with the NTVFS subsystem. We register + under names 'simple' + */ + + ops.type = NTVFS_DISK; + ops.name = "simple"; + ret = ntvfs_register(&ops, &vers); + + if (!NT_STATUS_IS_OK(ret)) { + DEBUG(0,("Failed to register simple backend with name: %s!\n", + ops.name)); + } + + return ret; +} |