first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 843 insertions, 0 deletions

diff --git a/source4/ntvfs/reference/vfs_ref.c b/source4/ntvfs/reference/vfs_ref.c
new file mode 100644
index 0000000000..b4fa2e61ff
--- /dev/null
+++ b/source4/ntvfs/reference/vfs_ref.c
@@ -0,0 +1,843 @@
+/* 
+   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 "svfs.h"
+
+/*
+  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 request_context *req, const char *sharename)
+{
+	struct stat st;
+	struct tcon_context *conn = req->conn;
+	struct svfs_private *private;
+
+	conn->ntvfs_private = talloc(conn->mem_ctx, sizeof(struct svfs_private));
+
+	private = conn->ntvfs_private;
+
+	private->connectpath = talloc_strdup(conn->mem_ctx, lp_pathname(conn->service));
+
+	/* 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;
+	}
+
+	conn->fs_type = talloc_strdup(conn->mem_ctx, "NTFS");
+	conn->dev_type = talloc_strdup(conn->mem_ctx, "A:");
+
+	return NT_STATUS_OK;
+}
+
+/*
+  disconnect from a share
+*/
+static NTSTATUS svfs_disconnect(struct request_context *req)
+{
+	return NT_STATUS_OK;
+}
+
+/*
+  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 request_context *req, struct smb_unlink *unl)
+{
+	char *unix_path;
+
+	unix_path = svfs_unix_path(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 request_context *req, struct smb_ioctl *io)
+{
+	return NT_STATUS_INVALID_PARAMETER;
+}
+
+/*
+  check if a directory exists
+*/
+static NTSTATUS svfs_chkpath(struct request_context *req, struct smb_chkpath *cp)
+{
+	char *unix_path;
+	struct stat st;
+
+	unix_path = svfs_unix_path(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;
+}
+
+/*
+  approximately map a struct stat to a fileinfo struct
+*/
+static NTSTATUS map_fileinfo(struct request_context *req, union smb_fileinfo *info, struct stat *st)
+{
+	switch (info->generic.level) {
+	case SMB_FILEINFO_NETWORK_OPEN_INFORMATION:
+		unix_to_nt_time(&info->netopen.out.create_time, st->st_ctime);
+		unix_to_nt_time(&info->netopen.out.access_time, st->st_atime);
+		unix_to_nt_time(&info->netopen.out.write_time,  st->st_mtime);
+		unix_to_nt_time(&info->netopen.out.change_time, st->st_mtime);
+		info->netopen.out.alloc_size = st->st_size;
+		info->netopen.out.size = st->st_size;
+		info->netopen.out.attrib = svfs_file_attrib(st);
+		info->netopen.out.unknown = 0;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_ALL_INFO:
+		unix_to_nt_time(&info->all_info.out.create_time, st->st_ctime);
+		unix_to_nt_time(&info->all_info.out.access_time, st->st_atime);
+		unix_to_nt_time(&info->all_info.out.write_time,  st->st_mtime);
+		unix_to_nt_time(&info->all_info.out.change_time, st->st_mtime);
+		info->all_info.out.attrib = svfs_file_attrib(st);
+		info->all_info.out.alloc_size = st->st_size;
+		info->all_info.out.size = st->st_size;
+		info->all_info.out.nlink = st->st_nlink;
+		info->all_info.out.delete_pending = 0;
+		info->all_info.out.directory = S_ISDIR(st->st_mode) ? 1 : 0;
+		info->all_info.out.index_number = st->st_ino;
+		info->all_info.out.ea_size = 0;
+		info->all_info.out.access_flags = 0xd01BF; /* what is this!? */
+		info->all_info.out.current_offset = 0;
+		info->all_info.out.open_mode = 0; /* what do do put here!? */
+		info->all_info.out.alignment_requirement = 0; /* what do do put here!? */
+		info->all_info.out.fname = talloc_strdup(req->mem_ctx, "TODO - STORE FILENAME");
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_BASIC:
+		unix_to_nt_time(&info->basic.out.create_time, st->st_ctime);
+		unix_to_nt_time(&info->basic.out.access_time, st->st_atime);
+		unix_to_nt_time(&info->basic.out.write_time,  st->st_mtime);
+		unix_to_nt_time(&info->basic.out.change_time, st->st_mtime);
+		info->basic.out.attrib = svfs_file_attrib(st);
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_INFO_STANDARD:
+		info->info_standard.out.create_time = st->st_ctime;
+		info->info_standard.out.access_time = st->st_atime;
+		info->info_standard.out.write_time = st->st_mtime;
+		info->info_standard.out.size = st->st_size;
+		info->info_standard.out.alloc_size = st->st_size;
+		info->info_standard.out.attrib = svfs_file_attrib(st);
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_INFO_STANDARD_EA:
+		info->info_standard_ea.out.create_time = st->st_ctime;
+		info->info_standard_ea.out.access_time = st->st_atime;
+		info->info_standard_ea.out.write_time = st->st_mtime;
+		info->info_standard_ea.out.size = st->st_size;
+		info->info_standard_ea.out.alloc_size = st->st_size;
+		info->info_standard_ea.out.attrib = svfs_file_attrib(st);
+		info->info_standard_ea.out.ea_size = 0;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_STANDARD_INFO:
+		info->standard_info.out.alloc_size = st->st_size;
+		info->standard_info.out.size = st->st_size;
+		info->standard_info.out.nlink = st->st_nlink;
+		info->standard_info.out.delete_pending = 0;
+		info->standard_info.out.directory = S_ISDIR(st->st_mode) ? 1 : 0;
+		info->standard_info.out.unknown = 0;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_INTERNAL:
+		info->internal.out.device = st->st_dev;
+		info->internal.out.device = st->st_ino;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_EA:
+		info->ea.out.unknown = 0;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_ATTRIB_TAGINFO:
+		info->tag.out.attrib = svfs_file_attrib(st);
+		info->tag.out.reparse_tag = 0;
+		return NT_STATUS_OK;
+
+	case SMB_FILEINFO_STREAM:
+		/* setup a single data stream */
+		info->stream.out.num_streams = 1;
+		info->stream.out.streams = talloc(req->mem_ctx, sizeof(info->stream.out.streams[0]));
+		if (!info->stream.out.streams) {
+			return NT_STATUS_NO_MEMORY;
+		}
+		info->stream.out.streams[0].size = st->st_size;
+		info->stream.out.streams[0].alloc_size = st->st_size;
+		info->stream.out.streams[0].stream_name = talloc_strdup(req->mem_ctx,"::$DATA");
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}
+
+/*
+  return info on a pathname
+*/
+static NTSTATUS svfs_qpathinfo(struct request_context *req, union smb_fileinfo *info)
+{
+	char *unix_path;
+	struct stat st;
+
+	unix_path = svfs_unix_path(req, info->basic.in.fname);
+
+	if (stat(unix_path, &st) == -1) {
+		return map_nt_error_from_unix(errno);
+	}
+
+	return map_fileinfo(req, info, &st);
+}
+
+/*
+  query info on a open file
+*/
+static NTSTATUS svfs_qfileinfo(struct request_context *req, union smb_fileinfo *info)
+{
+	struct stat st;
+
+	if (fstat(info->generic.in.fnum, &st) == -1) {
+		return map_nt_error_from_unix(errno);
+	}
+
+	return map_fileinfo(req, info, &st);
+}
+
+
+/*
+  set info on a pathname
+*/
+static NTSTATUS svfs_setpathinfo(struct request_context *req, union smb_setfileinfo *st)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  open a file
+*/
+static NTSTATUS svfs_open(struct request_context *req, union smb_open *io)
+{
+	char *unix_path;
+	struct stat st;
+	int fd, flags;
+	
+	if (io->generic.level != SMB_OPEN_GENERIC) {
+		return ntvfs_map_open(req, io);
+	}
+
+	unix_path = svfs_unix_path(req, io->ntcreatex.in.fname);
+
+	switch (io->generic.in.open_disposition) {
+	case FILE_SUPERSEDE:
+		flags = O_RDWR | O_CREAT | O_TRUNC;
+		break;
+	case FILE_OPEN:
+		flags = O_RDWR;
+		break;
+	case FILE_CREATE:
+		flags = O_RDWR | O_CREAT | O_EXCL;
+		break;
+	case FILE_OPEN_IF:
+		flags = O_RDWR | O_CREAT;
+		break;
+	case FILE_OVERWRITE:
+		flags = O_RDWR;
+		break;
+	case FILE_OVERWRITE_IF:
+		flags = O_RDWR | O_CREAT | O_TRUNC;
+		break;
+	default:
+		flags = O_RDWR;
+		break;
+	}
+
+	if (io->generic.in.create_options & FILE_DIRECTORY_FILE) {
+		flags = O_RDONLY | O_DIRECTORY;
+		switch (io->generic.in.open_disposition) {
+		case FILE_CREATE:
+			if (mkdir(unix_path, 0755) == -1) {
+				return map_nt_error_from_unix(errno);
+			}
+			break;
+		case FILE_OPEN_IF:
+			if (mkdir(unix_path, 0755) == -1 && errno != EEXIST) {
+				return map_nt_error_from_unix(errno);
+			}
+			break;
+		}
+	}
+
+	fd = open(unix_path, flags, 0644);
+	if (fd == -1) {
+		return map_nt_error_from_unix(errno);
+	}
+
+	if (fstat(fd, &st) == -1) {
+		close(fd);
+		return map_nt_error_from_unix(errno);
+	}
+
+	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.file_attr = svfs_file_attrib(&st);
+	io->generic.out.is_directory = S_ISDIR(st.st_mode) ? 1 : 0;
+
+	return NT_STATUS_OK;
+}
+
+/*
+  create a directory
+*/
+static NTSTATUS svfs_mkdir(struct request_context *req, union smb_mkdir *md)
+{
+	char *unix_path;
+
+	if (md->generic.level != RAW_MKDIR_MKDIR) {
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	unix_path = svfs_unix_path(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 request_context *req, struct smb_rmdir *rd)
+{
+	char *unix_path;
+
+	unix_path = svfs_unix_path(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 request_context *req, struct smb_rename *ren)
+{
+	char *unix_path1, *unix_path2;
+
+	unix_path1 = svfs_unix_path(req, ren->in.pattern1);
+	unix_path2 = svfs_unix_path(req, ren->in.pattern2);
+
+	if (rename(unix_path1, unix_path2) != 0) {
+		return map_nt_error_from_unix(errno);
+	}
+	
+	return NT_STATUS_OK;
+}
+
+/*
+  copy a set of files
+*/
+static NTSTATUS svfs_copy(struct request_context *req, struct smb_copy *cp)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  read from a file
+*/
+static NTSTATUS svfs_read(struct request_context *req, union smb_read *rd)
+{
+	ssize_t ret;
+
+	if (rd->generic.level != SMB_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? */
+
+	return NT_STATUS_OK;
+}
+
+/*
+  write to a file
+*/
+static NTSTATUS svfs_write(struct request_context *req, union smb_write *wr)
+{
+	ssize_t ret;
+
+	switch (wr->generic.level) {
+	case SMB_WRITE_WRITEX:
+		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;
+
+	case SMB_WRITE_WRITE:
+		if (wr->write.in.count == 0) {
+			/* a truncate! */
+			ret = ftruncate(wr->write.in.fnum, wr->write.in.offset);
+		} else {
+			ret = pwrite(wr->write.in.fnum, 
+				     wr->write.in.data, 
+				     wr->write.in.count,
+				     wr->write.in.offset);
+		}
+		if (ret == -1) {
+			return map_nt_error_from_unix(errno);
+		}
+		
+		wr->write.out.nwritten = ret;
+
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  seek in a file
+*/
+static NTSTATUS svfs_seek(struct request_context *req, struct smb_seek *io)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  flush a file
+*/
+static NTSTATUS svfs_flush(struct request_context *req, struct smb_flush *io)
+{
+	fsync(io->in.fnum);
+	return NT_STATUS_OK;
+}
+
+/*
+  close a file
+*/
+static NTSTATUS svfs_close(struct request_context *req, union smb_close *io)
+{
+	if (io->generic.level != SMB_CLOSE_CLOSE) {
+		/* we need a mapping function */
+		return NT_STATUS_INVALID_LEVEL;
+	}
+
+	if (close(io->close.in.fnum) != 0) {
+		return map_nt_error_from_unix(errno);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/*
+  exit - closing files?
+*/
+static NTSTATUS svfs_exit(struct request_context *req)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/*
+  lock a byte range
+*/
+static NTSTATUS svfs_lock(struct request_context *req, union smb_lock *lck)
+{
+	DEBUG(0,("REWRITE: not doing byte range locking!\n"));
+	return NT_STATUS_OK;
+}
+
+/*
+  set info on a open file
+*/
+static NTSTATUS svfs_setfileinfo(struct request_context *req, 
+				 union smb_setfileinfo *info)
+{
+	DEBUG(0,("REWRITE: svfs_setfileinfo: not doing setfileinfo level %d\n", 
+		 info->generic.level));
+	switch (info->generic.level) {
+	case SMB_SETFILEINFO_BASIC:
+		info->basic.out.ea_error_offset = 0;
+		break;
+	case SMB_SETFILEINFO_END_OF_FILE:
+		if (ftruncate(info->eof.in.fnum, info->eof.in.size) != 0) {
+			return map_nt_error_from_unix(errno);
+		}
+		info->eof.out.ea_error_offset = 0;
+		break;
+	case SMB_SETFILEINFO_ALLOCATION:
+		info->eof.out.ea_error_offset = 0;
+		break;
+	}
+	return NT_STATUS_OK;
+}
+
+
+/*
+  return filesystem space info
+*/
+static NTSTATUS svfs_fsinfo(struct request_context *req, union smb_fsinfo *fs)
+{
+	struct svfs_private *private = req->conn->ntvfs_private;
+
+	if (fs->generic.level != SMB_FSINFO_GENERIC) {
+		return ntvfs_map_fsinfo(req, fs);
+	}
+
+	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;
+
+	return NT_STATUS_OK;
+}
+
+/*
+  return filesystem attribute info
+*/
+static NTSTATUS svfs_fsattr(struct request_context *req, union smb_fsattr *fs)
+{
+	struct stat st;
+	struct svfs_private *private = req->conn->ntvfs_private;
+
+	if (fs->generic.level != SMB_FSATTR_GENERIC) {
+		return ntvfs_map_fsattr(req, fs);
+	}
+
+	if (stat(private->connectpath, &st) != 0) {
+		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->mem_ctx, "NTFS");
+	fs->generic.out.volume_name = talloc_strdup(req->mem_ctx, 
+						    lp_servicename(req->conn->service));
+
+	return NT_STATUS_OK;
+}
+
+/*
+  return print queue info
+*/
+static NTSTATUS svfs_lpq(struct request_context *req, union smb_lpq *lpq)
+{
+	return NT_STATUS_NOT_SUPPORTED;
+}
+
+/* 
+   list files in a directory matching a wildcard pattern
+*/
+NTSTATUS svfs_search_first(struct request_context *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 = req->conn->ntvfs_private;
+	struct search_state *search;
+	union smb_search_data file;
+	TALLOC_CTX *mem_ctx;
+	uint_t max_count;
+
+	if (io->generic.level != SMB_SEARCH_T2FFIRST_BOTH) {
+		return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	mem_ctx = talloc_init("svfs_search");
+
+	search = talloc_zero(mem_ctx, sizeof(struct search_state));
+	if (!search) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	max_count = io->t2ffirst.in.max_count;
+
+	dir = svfs_list(mem_ctx, req, io->t2ffirst.in.pattern);
+	if (!dir) {
+		talloc_destroy_pool(mem_ctx);
+		return NT_STATUS_FOOBAR;
+	}
+
+	search->mem_ctx = mem_ctx;
+	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.create_time, dir->files[i].st.st_ctime);
+		unix_to_nt_time(&file.both.access_time, dir->files[i].st.st_atime);
+		unix_to_nt_time(&file.both.write_time,  dir->files[i].st.st_mtime);
+		unix_to_nt_time(&file.both.change_time, dir->files[i].st.st_mtime);
+		file.both.name = dir->files[i].name;
+		file.both.short_name = dir->files[i].name;
+		file.both.size = dir->files[i].st.st_size;
+		file.both.ex_attrib = svfs_file_attrib(&dir->files[i].st);
+
+		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_destroy(search->mem_ctx);
+	} else {
+		private->next_search_handle++;
+		DLIST_ADD(private->search, search);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/* continue a search */
+NTSTATUS svfs_search_next(struct request_context *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 = req->conn->ntvfs_private;
+	struct search_state *search;
+	union smb_search_data file;
+	uint_t max_count;
+
+	if (io->generic.level != SMB_SEARCH_T2FFIRST_BOTH) {
+		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.create_time, dir->files[i].st.st_ctime);
+		unix_to_nt_time(&file.both.access_time, dir->files[i].st.st_atime);
+		unix_to_nt_time(&file.both.write_time,  dir->files[i].st.st_mtime);
+		unix_to_nt_time(&file.both.change_time, dir->files[i].st.st_mtime);
+		file.both.name = dir->files[i].name;
+		file.both.short_name = dir->files[i].name;
+		file.both.size = dir->files[i].st.st_size;
+		file.both.ex_attrib = svfs_file_attrib(&dir->files[i].st);
+
+		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_destroy(search->mem_ctx);
+	}
+
+	return NT_STATUS_OK;
+}
+
+/* close a search */
+NTSTATUS svfs_search_close(struct request_context *req, union smb_search_close *io)
+{
+	struct svfs_private *private = req->conn->ntvfs_private;
+	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_destroy(search->mem_ctx);
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  initialialise the POSIX disk backend, registering ourselves with the ntvfs subsystem
+ */
+BOOL posix_vfs_init(void)
+{
+	BOOL 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.open = 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.fsattr = svfs_fsattr;
+	ops.lpq = svfs_lpq;
+	ops.search_first = svfs_search_first;
+	ops.search_next = svfs_search_next;
+	ops.search_close = svfs_search_close;
+
+	/* register ourselves with the NTVFS subsystem. We register under the name 'default'
+	   as we wish to be the default backend */
+	ret = ntvfs_register("simple", NTVFS_DISK, &ops);
+
+	if (!ret) {
+		DEBUG(0,("Failed to register POSIX backend!\n"));
+		return False;
+	}
+
+	return True;
+}