/* 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 2 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, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* 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/filesys.h" #include "svfs.h" #include "system/time.h" #include "dlinklist.h" #include "smb_server/smb_server.h" #ifndef O_DIRECTORY #define O_DIRECTORY 0 #endif #define CHECK_READ_ONLY(req) do { if (lp_readonly(req->tcon->service)) return NT_STATUS_ACCESS_DENIED; } while (0) #ifndef HAVE_PREAD static ssize_t pread(int __fd, void *__buf, size_t __nbytes, off_t __offset) { if (lseek(__fd, __offset, SEEK_SET) != __offset) { return -1; } return read(__fd, __buf, __nbytes); } #endif #ifndef HAVE_PWRITE static ssize_t pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset) { if (lseek(__fd, __offset, SEEK_SET) != __offset) { return -1; } return write(__fd, __buf, __nbytes); } #endif /* 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 smbsrv_request *req, const char *sharename) { struct stat st; struct smbsrv_tcon *tcon = req->tcon; struct svfs_private *private; private = talloc(tcon, struct svfs_private); private->next_search_handle = 0; private->connectpath = talloc_strdup(tcon, lp_pathname(tcon->service)); private->open_files = NULL; private->search = NULL; /* the directory must exist */ if (stat(private->connectpath, &st) != 0 || !S_ISDIR(st.st_mode)) { DEBUG(0,("'%s' is not a directory, when connecting to [%s]\n", private->connectpath, sharename)); return NT_STATUS_BAD_NETWORK_NAME; } tcon->fs_type = talloc_strdup(tcon, "NTFS"); tcon->dev_type = talloc_strdup(tcon, "A:"); ntvfs->private_data = private; DEBUG(0,("WARNING: ntvfs simple: connect to share [%s] with ROOT privileges!!!\n",sharename)); return NT_STATUS_OK; } /* disconnect from a share */ static NTSTATUS svfs_disconnect(struct ntvfs_module_context *ntvfs, struct smbsrv_tcon *tcon) { return NT_STATUS_OK; } /* find open file handle given fd */ static struct svfs_file *find_fd(struct svfs_private *private, int fd) { struct svfs_file *f; for (f=private->open_files;f;f=f->next) { if (f->fd == fd) { return f; } } return NULL; } /* 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 smbsrv_request *req, struct smb_unlink *unl) { char *unix_path; CHECK_READ_ONLY(req); unix_path = svfs_unix_path(ntvfs, req, unl->in.pattern); /* ignoring wildcards ... */ if (unlink(unix_path) == -1) { return map_nt_error_from_unix(errno); } return NT_STATUS_OK; } /* ioctl interface - we don't do any */ static NTSTATUS svfs_ioctl(struct ntvfs_module_context *ntvfs, struct smbsrv_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 smbsrv_request *req, struct smb_chkpath *cp) { char *unix_path; struct stat st; unix_path = svfs_unix_path(ntvfs, req, cp->in.path); if (stat(unix_path, &st) == -1) { return map_nt_error_from_unix(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 smbsrv_request *req, union smb_fileinfo *info, struct stat *st, const char *unix_path) { struct svfs_dir *dir = NULL; char *pattern = NULL; int i; const char *s, *short_name; s = strrchr(unix_path, '/'); if (s) { short_name = s+1; } else { short_name = ""; } asprintf(&pattern, "%s:*", unix_path); 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 smbsrv_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.fname, info->generic.level)); if (info->generic.level != RAW_FILEINFO_GENERIC) { return ntvfs_map_qpathinfo(req, info, ntvfs); } unix_path = svfs_unix_path(ntvfs, req, info->generic.in.fname); 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(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 smbsrv_request *req, union smb_fileinfo *info) { struct svfs_private *private = ntvfs->private_data; struct svfs_file *f; struct stat st; if (info->generic.level != RAW_FILEINFO_GENERIC) { return ntvfs_map_qfileinfo(req, info, ntvfs); } f = find_fd(private, info->generic.in.fnum); if (!f) { return NT_STATUS_INVALID_HANDLE; } if (fstat(info->generic.in.fnum, &st) == -1) { return map_nt_error_from_unix(errno); } return svfs_map_fileinfo(ntvfs, req,info, &st, f->name); } /* open a file */ static NTSTATUS svfs_open(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, union smb_open *io) { struct svfs_private *private = ntvfs->private_data; char *unix_path; struct stat st; int fd, flags; struct svfs_file *f; int create_flags, rdwr_flags; if (io->generic.level != RAW_OPEN_GENERIC) { return ntvfs_map_open(req, io, ntvfs); } if (lp_readonly(req->tcon->service)) { 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 (lp_readonly(req->tcon->service)) { 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(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(errno); } break; } } do_open: fd = open(unix_path, flags, 0644); if (fd == -1) { return map_nt_error_from_unix(errno); } if (fstat(fd, &st) == -1) { DEBUG(9,("svfs_open: fstat errno=%d\n", errno)); close(fd); return map_nt_error_from_unix(errno); } f = talloc(req->tcon, struct svfs_file); f->fd = fd; f->name = talloc_strdup(req->tcon, unix_path); DLIST_ADD(private->open_files, f); 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.fnum = fd; 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 smbsrv_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(errno); } return NT_STATUS_OK; } /* remove a directory */ static NTSTATUS svfs_rmdir(struct ntvfs_module_context *ntvfs, struct smbsrv_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(errno); } return NT_STATUS_OK; } /* rename a set of files */ static NTSTATUS svfs_rename(struct ntvfs_module_context *ntvfs, struct smbsrv_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(errno); } return NT_STATUS_OK; } /* copy a set of files */ static NTSTATUS svfs_copy(struct ntvfs_module_context *ntvfs, struct smbsrv_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 smbsrv_request *req, union smb_read *rd) { ssize_t ret; if (rd->generic.level != RAW_READ_READX) { return NT_STATUS_NOT_SUPPORTED; } ret = pread(rd->readx.in.fnum, rd->readx.out.data, rd->readx.in.maxcnt, rd->readx.in.offset); if (ret == -1) { return map_nt_error_from_unix(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 smbsrv_request *req, union smb_write *wr) { ssize_t ret; if (wr->generic.level != RAW_WRITE_WRITEX) { return ntvfs_map_write(req, wr, ntvfs); } CHECK_READ_ONLY(req); ret = pwrite(wr->writex.in.fnum, wr->writex.in.data, wr->writex.in.count, wr->writex.in.offset); if (ret == -1) { return map_nt_error_from_unix(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 smbsrv_request *req, struct smb_seek *io) { return NT_STATUS_NOT_SUPPORTED; } /* flush a file */ static NTSTATUS svfs_flush(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, struct smb_flush *io) { fsync(io->in.fnum); return NT_STATUS_OK; } /* close a file */ static NTSTATUS svfs_close(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, union smb_close *io) { struct svfs_private *private = 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(private, io->close.in.fnum); if (!f) { return NT_STATUS_INVALID_HANDLE; } if (close(io->close.in.fnum) == -1) { return map_nt_error_from_unix(errno); } DLIST_REMOVE(private->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 smbsrv_request *req) { return NT_STATUS_NOT_SUPPORTED; } /* logoff - closing files */ static NTSTATUS svfs_logoff(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req) { return NT_STATUS_NOT_SUPPORTED; } /* setup for an async call */ static NTSTATUS svfs_async_setup(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, void *private) { return NT_STATUS_OK; } /* cancel an async call */ static NTSTATUS svfs_cancel(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req) { return NT_STATUS_UNSUCCESSFUL; } /* lock a byte range */ static NTSTATUS svfs_lock(struct ntvfs_module_context *ntvfs, struct smbsrv_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 smbsrv_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 smbsrv_request *req, union smb_setfileinfo *info) { struct utimbuf unix_times; int fd; CHECK_READ_ONLY(req); switch (info->generic.level) { case RAW_SFILEINFO_END_OF_FILE_INFO: case RAW_SFILEINFO_END_OF_FILE_INFORMATION: if (ftruncate(info->end_of_file_info.file.fnum, info->end_of_file_info.in.size) == -1) { return map_nt_error_from_unix(errno); } break; case RAW_SFILEINFO_SETATTRE: unix_times.actime = info->setattre.in.access_time; unix_times.modtime = info->setattre.in.write_time; fd = info->setattre.file.fnum; 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(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 smbsrv_request *req, union smb_fsinfo *fs) { struct svfs_private *private = ntvfs->private_data; struct stat st; if (fs->generic.level != RAW_QFS_GENERIC) { return ntvfs_map_fsinfo(req, fs, ntvfs); } if (sys_fsusage(private->connectpath, &fs->generic.out.blocks_free, &fs->generic.out.blocks_total) == -1) { return map_nt_error_from_unix(errno); } fs->generic.out.block_size = 512; if (stat(private->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, lp_servicename(req->tcon->service)); fs->generic.out.fs_type = req->tcon->fs_type; return NT_STATUS_OK; } #if 0 /* return filesystem attribute info */ static NTSTATUS svfs_fsattr(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, union smb_fsattr *fs) { struct stat st; struct svfs_private *private = ntvfs->private_data; if (fs->generic.level != RAW_FSATTR_GENERIC) { return ntvfs_map_fsattr(req, fs, ntvfs); } if (stat(private->connectpath, &st) == -1) { return map_nt_error_from_unix(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, lp_servicename(req->tcon->service)); return NT_STATUS_OK; } #endif /* return print queue info */ static NTSTATUS svfs_lpq(struct ntvfs_module_context *ntvfs, struct smbsrv_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 smbsrv_request *req, union smb_search_first *io, void *search_private, BOOL (*callback)(void *, union smb_search_data *)) { struct svfs_dir *dir; int i; struct svfs_private *private = ntvfs->private_data; struct search_state *search; union smb_search_data file; uint_t max_count; if (io->generic.level != RAW_SEARCH_BOTH_DIRECTORY_INFO) { return NT_STATUS_NOT_SUPPORTED; } search = talloc_zero(private, 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 = private->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 { private->next_search_handle++; DLIST_ADD(private->search, search); } return NT_STATUS_OK; } /* continue a search */ static NTSTATUS svfs_search_next(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, union smb_search_next *io, void *search_private, BOOL (*callback)(void *, union smb_search_data *)) { struct svfs_dir *dir; int i; struct svfs_private *private = ntvfs->private_data; struct search_state *search; union smb_search_data file; uint_t max_count; if (io->generic.level != RAW_SEARCH_BOTH_DIRECTORY_INFO) { return NT_STATUS_NOT_SUPPORTED; } for (search=private->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(private->search, search); talloc_free(search); } return NT_STATUS_OK; } /* close a search */ static NTSTATUS svfs_search_close(struct ntvfs_module_context *ntvfs, struct smbsrv_request *req, union smb_search_close *io) { struct svfs_private *private = ntvfs->private_data; struct search_state *search; for (search=private->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(private->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 smbsrv_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(void) { NTSTATUS ret; struct ntvfs_ops ops; ZERO_STRUCT(ops); /* fill in all the operations */ ops.connect = svfs_connect; ops.disconnect = svfs_disconnect; ops.unlink = svfs_unlink; ops.chkpath = svfs_chkpath; ops.qpathinfo = svfs_qpathinfo; ops.setpathinfo = svfs_setpathinfo; ops.openfile = svfs_open; ops.mkdir = svfs_mkdir; ops.rmdir = svfs_rmdir; ops.rename = svfs_rename; ops.copy = svfs_copy; ops.ioctl = svfs_ioctl; ops.read = svfs_read; ops.write = svfs_write; ops.seek = svfs_seek; ops.flush = svfs_flush; ops.close = svfs_close; ops.exit = svfs_exit; ops.lock = svfs_lock; ops.setfileinfo = svfs_setfileinfo; ops.qfileinfo = svfs_qfileinfo; ops.fsinfo = svfs_fsinfo; ops.lpq = svfs_lpq; ops.search_first = svfs_search_first; ops.search_next = svfs_search_next; ops.search_close = svfs_search_close; ops.trans = svfs_trans; ops.logoff = svfs_logoff; ops.async_setup = svfs_async_setup; ops.cancel = svfs_cancel; /* register ourselves with the NTVFS subsystem. We register under names 'simple' */ ops.type = NTVFS_DISK; ops.name = "simple"; ret = ntvfs_register(&ops); if (!NT_STATUS_IS_OK(ret)) { DEBUG(0,("Failed to register simple backend with name: %s!\n", ops.name)); } return ret; }