*/
#include "includes.h"
+#include "smbd/smbd.h"
+#include "system/filesys.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS
* an option to put in a special ACL entry for a non-existing group.
*/
-#define SAMBA_XATTR_MARKER "user.SAMBA_STREAMS"
-
-static bool file_is_valid(vfs_handle_struct *handle, const char *path)
+static bool file_is_valid(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
{
char buf;
- DEBUG(10, ("file_is_valid (%s) called\n", path));
+ DEBUG(10, ("file_is_valid (%s) called\n", smb_fname->base_name));
- if (SMB_VFS_NEXT_GETXATTR(handle, path, SAMBA_XATTR_MARKER,
+ if (SMB_VFS_GETXATTR(handle->conn, smb_fname, SAMBA_XATTR_MARKER,
&buf, sizeof(buf)) != sizeof(buf)) {
DEBUG(10, ("GETXATTR failed: %s\n", strerror(errno)));
return false;
return true;
}
-static bool mark_file_valid(vfs_handle_struct *handle, const char *path)
+static bool mark_file_valid(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
{
char buf = '1';
int ret;
- DEBUG(10, ("marking file %s as valid\n", path));
+ DEBUG(10, ("marking file %s as valid\n", smb_fname->base_name));
- ret = SMB_VFS_NEXT_SETXATTR(handle, path, SAMBA_XATTR_MARKER,
+ ret = SMB_VFS_SETXATTR(handle->conn, smb_fname, SAMBA_XATTR_MARKER,
&buf, sizeof(buf), 0);
if (ret == -1) {
return true;
}
-static char *stream_dir(vfs_handle_struct *handle, const char *base_path,
+/**
+ * Given an smb_filename, determine the stream directory using the file's
+ * base_name.
+ */
+static char *stream_dir(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname,
const SMB_STRUCT_STAT *base_sbuf, bool create_it)
{
uint32_t hash;
+ struct smb_filename *smb_fname_hash = NULL;
char *result = NULL;
- SMB_STRUCT_STAT sbuf;
+ SMB_STRUCT_STAT base_sbuf_tmp;
uint8_t first, second;
char *tmp;
char *id_hex;
struct file_id id;
- uint8 id_buf[16];
- const char *rootdir;
+ uint8_t id_buf[16];
+ bool check_valid;
+ char *rootdir = NULL;
+ struct smb_filename *rootdir_fname = NULL;
+ struct smb_filename *tmp_fname = NULL;
+
+ check_valid = lp_parm_bool(SNUM(handle->conn),
+ "streams_depot", "check_valid", true);
- tmp = talloc_asprintf(talloc_tos(), "%s/.streams", handle->conn->connectpath);
+ tmp = talloc_asprintf(talloc_tos(), "%s/.streams",
+ handle->conn->connectpath);
if (tmp == NULL) {
errno = ENOMEM;
goto fail;
}
- rootdir = lp_parm_const_string(
+ rootdir = lp_parm_talloc_string(talloc_tos(),
SNUM(handle->conn), "streams_depot", "directory",
tmp);
- TALLOC_FREE(tmp);
+ if (rootdir == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+
+ rootdir_fname = synthetic_smb_fname(talloc_tos(),
+ rootdir,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (rootdir_fname == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+ /* Stat the base file if it hasn't already been done. */
if (base_sbuf == NULL) {
- if (SMB_VFS_NEXT_STAT(handle, base_path, &sbuf) == -1) {
- /*
- * base file is not there
- */
+ struct smb_filename *smb_fname_base;
+
+ smb_fname_base = synthetic_smb_fname(
+ talloc_tos(),
+ smb_fname->base_name,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_base == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+ if (SMB_VFS_NEXT_STAT(handle, smb_fname_base) == -1) {
+ TALLOC_FREE(smb_fname_base);
goto fail;
}
- base_sbuf = &sbuf;
+ base_sbuf_tmp = smb_fname_base->st;
+ TALLOC_FREE(smb_fname_base);
+ } else {
+ base_sbuf_tmp = *base_sbuf;
}
- id = SMB_VFS_FILE_ID_CREATE(handle->conn, base_sbuf->st_dev,
- base_sbuf->st_ino);
+ id = SMB_VFS_FILE_ID_CREATE(handle->conn, &base_sbuf_tmp);
push_file_id_16((char *)id_buf, &id);
return NULL;
}
- if (SMB_VFS_NEXT_STAT(handle, result, &sbuf) == 0) {
+ smb_fname_hash = synthetic_smb_fname(talloc_tos(),
+ result,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_hash == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+
+ if (SMB_VFS_NEXT_STAT(handle, smb_fname_hash) == 0) {
+ struct smb_filename *smb_fname_new = NULL;
char *newname;
+ bool delete_lost;
- if (!S_ISDIR(sbuf.st_mode)) {
+ if (!S_ISDIR(smb_fname_hash->st.st_ex_mode)) {
errno = EINVAL;
goto fail;
}
- if (file_is_valid(handle, base_path)) {
+ if (!check_valid ||
+ file_is_valid(handle, smb_fname)) {
return result;
}
/*
* Someone has recreated a file under an existing inode
- * without deleting the streams directory. For now, just move
- * it away.
+ * without deleting the streams directory.
+ * Move it away or remove if streams_depot:delete_lost is set.
*/
again:
- newname = talloc_asprintf(talloc_tos(), "lost-%lu", random());
- if (newname == NULL) {
- errno = ENOMEM;
- goto fail;
- }
+ delete_lost = lp_parm_bool(SNUM(handle->conn), "streams_depot",
+ "delete_lost", false);
+
+ if (delete_lost) {
+ DEBUG(3, ("Someone has recreated a file under an "
+ "existing inode. Removing: %s\n",
+ smb_fname_hash->base_name));
+ recursive_rmdir(talloc_tos(), handle->conn,
+ smb_fname_hash);
+ SMB_VFS_NEXT_RMDIR(handle, smb_fname_hash);
+ } else {
+ newname = talloc_asprintf(talloc_tos(), "lost-%lu",
+ random());
+ DEBUG(3, ("Someone has recreated a file under an "
+ "existing inode. Renaming: %s to: %s\n",
+ smb_fname_hash->base_name,
+ newname));
+ if (newname == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
- if (SMB_VFS_NEXT_RENAME(handle, result, newname) == -1) {
- if ((errno == EEXIST) || (errno == ENOTEMPTY)) {
- TALLOC_FREE(newname);
- goto again;
+ smb_fname_new = synthetic_smb_fname(
+ talloc_tos(),
+ newname,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ TALLOC_FREE(newname);
+ if (smb_fname_new == NULL) {
+ errno = ENOMEM;
+ goto fail;
}
- goto fail;
- }
- TALLOC_FREE(newname);
+ if (SMB_VFS_NEXT_RENAME(handle, smb_fname_hash,
+ smb_fname_new) == -1) {
+ TALLOC_FREE(smb_fname_new);
+ if ((errno == EEXIST) || (errno == ENOTEMPTY)) {
+ goto again;
+ }
+ goto fail;
+ }
+
+ TALLOC_FREE(smb_fname_new);
+ }
}
if (!create_it) {
goto fail;
}
- if ((SMB_VFS_NEXT_MKDIR(handle, rootdir, 0755) != 0)
+ if ((SMB_VFS_NEXT_MKDIR(handle, rootdir_fname, 0755) != 0)
&& (errno != EEXIST)) {
goto fail;
}
goto fail;
}
- if ((SMB_VFS_NEXT_MKDIR(handle, tmp, 0755) != 0)
+ tmp_fname = synthetic_smb_fname(talloc_tos(),
+ tmp,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (tmp_fname == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+
+ if ((SMB_VFS_NEXT_MKDIR(handle, tmp_fname, 0755) != 0)
&& (errno != EEXIST)) {
goto fail;
}
TALLOC_FREE(tmp);
+ TALLOC_FREE(tmp_fname);
tmp = talloc_asprintf(result, "%s/%2.2X/%2.2X", rootdir, first,
second);
goto fail;
}
- if ((SMB_VFS_NEXT_MKDIR(handle, tmp, 0755) != 0)
+ tmp_fname = synthetic_smb_fname(talloc_tos(),
+ tmp,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (tmp_fname == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+
+ if ((SMB_VFS_NEXT_MKDIR(handle, tmp_fname, 0755) != 0)
&& (errno != EEXIST)) {
goto fail;
}
TALLOC_FREE(tmp);
+ TALLOC_FREE(tmp_fname);
- if ((SMB_VFS_NEXT_MKDIR(handle, result, 0755) != 0)
+ /* smb_fname_hash is the struct smb_filename version of 'result' */
+ if ((SMB_VFS_NEXT_MKDIR(handle, smb_fname_hash, 0755) != 0)
&& (errno != EEXIST)) {
goto fail;
}
- if (!mark_file_valid(handle, base_path)) {
+ if (check_valid && !mark_file_valid(handle, smb_fname)) {
goto fail;
}
+ TALLOC_FREE(rootdir_fname);
+ TALLOC_FREE(rootdir);
+ TALLOC_FREE(tmp_fname);
+ TALLOC_FREE(smb_fname_hash);
return result;
fail:
+ TALLOC_FREE(rootdir_fname);
+ TALLOC_FREE(rootdir);
+ TALLOC_FREE(tmp_fname);
+ TALLOC_FREE(smb_fname_hash);
TALLOC_FREE(result);
return NULL;
}
-
-static char *stream_name(vfs_handle_struct *handle, const char *fname,
- bool create_dir)
+/**
+ * Given a stream name, populate smb_fname_out with the actual location of the
+ * stream.
+ */
+static NTSTATUS stream_smb_fname(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname,
+ struct smb_filename **smb_fname_out,
+ bool create_dir)
{
- char *base = NULL;
- char *sname = NULL;
- char *id_hex = NULL;
char *dirname, *stream_fname;
+ const char *stype;
+ NTSTATUS status;
- if (!NT_STATUS_IS_OK(split_ntfs_stream_name(talloc_tos(), fname,
- &base, &sname))) {
- DEBUG(10, ("split_ntfs_stream_name failed\n"));
- errno = ENOMEM;
- goto fail;
+ *smb_fname_out = NULL;
+
+ stype = strchr_m(smb_fname->stream_name + 1, ':');
+
+ if (stype) {
+ if (strcasecmp_m(stype, ":$DATA") != 0) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
}
- dirname = stream_dir(handle, base, NULL, create_dir);
+ dirname = stream_dir(handle, smb_fname, NULL, create_dir);
if (dirname == NULL) {
+ status = map_nt_error_from_unix(errno);
goto fail;
}
- stream_fname = talloc_asprintf(talloc_tos(), "%s/:%s", dirname, sname);
+ stream_fname = talloc_asprintf(talloc_tos(), "%s/%s", dirname,
+ smb_fname->stream_name);
if (stream_fname == NULL) {
- errno = ENOMEM;
+ status = NT_STATUS_NO_MEMORY;
goto fail;
}
+ if (stype == NULL) {
+ /* Append an explicit stream type if one wasn't specified. */
+ stream_fname = talloc_asprintf(talloc_tos(), "%s:$DATA",
+ stream_fname);
+ if (stream_fname == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto fail;
+ }
+ } else {
+ /* Normalize the stream type to upercase. */
+ if (!strupper_m(strrchr_m(stream_fname, ':') + 1)) {
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+ }
+
DEBUG(10, ("stream filename = %s\n", stream_fname));
- TALLOC_FREE(base);
- TALLOC_FREE(sname);
- TALLOC_FREE(id_hex);
+ /* Create an smb_filename with stream_name == NULL. */
+ *smb_fname_out = synthetic_smb_fname(talloc_tos(),
+ stream_fname,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (*smb_fname_out == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
- return stream_fname;
+ return NT_STATUS_OK;
fail:
DEBUG(5, ("stream_name failed: %s\n", strerror(errno)));
- TALLOC_FREE(base);
- TALLOC_FREE(sname);
- TALLOC_FREE(id_hex);
- return NULL;
+ TALLOC_FREE(*smb_fname_out);
+ return status;
}
static NTSTATUS walk_streams(vfs_handle_struct *handle,
- const char *fname,
- const SMB_STRUCT_STAT *sbuf,
+ struct smb_filename *smb_fname_base,
char **pdirname,
bool (*fn)(const char *dirname,
const char *dirent,
void *private_data)
{
char *dirname;
- SMB_STRUCT_DIR *dirhandle = NULL;
- char *dirent;
+ struct smb_filename *dir_smb_fname = NULL;
+ DIR *dirhandle = NULL;
+ const char *dirent = NULL;
+ char *talloced = NULL;
- dirname = stream_dir(handle, fname, sbuf, false);
+ dirname = stream_dir(handle, smb_fname_base, &smb_fname_base->st,
+ false);
if (dirname == NULL) {
if (errno == ENOENT) {
DEBUG(10, ("walk_streams: dirname=%s\n", dirname));
- dirhandle = SMB_VFS_NEXT_OPENDIR(handle, dirname, NULL, 0);
+ dir_smb_fname = synthetic_smb_fname(talloc_tos(),
+ dirname,
+ NULL,
+ NULL,
+ smb_fname_base->flags);
+ if (dir_smb_fname == NULL) {
+ TALLOC_FREE(dirname);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ dirhandle = SMB_VFS_NEXT_OPENDIR(handle, dir_smb_fname, NULL, 0);
+
+ TALLOC_FREE(dir_smb_fname);
if (dirhandle == NULL) {
TALLOC_FREE(dirname);
return map_nt_error_from_unix(errno);
}
- while ((dirent = vfs_readdirname(handle->conn, dirhandle)) != NULL) {
+ while ((dirent = vfs_readdirname(handle->conn, dirhandle, NULL,
+ &talloced)) != NULL) {
if (ISDOT(dirent) || ISDOTDOT(dirent)) {
+ TALLOC_FREE(talloced);
continue;
}
DEBUG(10, ("walk_streams: dirent=%s\n", dirent));
if (!fn(dirname, dirent, private_data)) {
+ TALLOC_FREE(talloced);
break;
}
+ TALLOC_FREE(talloced);
}
SMB_VFS_NEXT_CLOSEDIR(handle, dirhandle);
return NT_STATUS_OK;
}
-static int streams_depot_stat(vfs_handle_struct *handle, const char *fname,
- SMB_STRUCT_STAT *sbuf)
+/**
+ * Helper to stat/lstat the base file of an smb_fname. This will actually
+ * fills in the stat struct in smb_filename.
+ */
+static int streams_depot_stat_base(vfs_handle_struct *handle,
+ struct smb_filename *smb_fname,
+ bool follow_links)
+{
+ char *tmp_stream_name;
+ int result;
+
+ tmp_stream_name = smb_fname->stream_name;
+ smb_fname->stream_name = NULL;
+ if (follow_links) {
+ result = SMB_VFS_NEXT_STAT(handle, smb_fname);
+ } else {
+ result = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
+ }
+ smb_fname->stream_name = tmp_stream_name;
+ return result;
+}
+
+static int streams_depot_stat(vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
{
- char *stream_fname;
+ struct smb_filename *smb_fname_stream = NULL;
+ NTSTATUS status;
int ret = -1;
- DEBUG(10, ("streams_depot_stat called for [%s]\n", fname));
+ DEBUG(10, ("streams_depot_stat called for [%s]\n",
+ smb_fname_str_dbg(smb_fname)));
- if (!is_ntfs_stream_name(fname)) {
- return SMB_VFS_NEXT_STAT(handle, fname, sbuf);
+ if (!is_ntfs_stream_smb_fname(smb_fname)) {
+ return SMB_VFS_NEXT_STAT(handle, smb_fname);
}
- stream_fname = stream_name(handle, fname, false);
- if (stream_fname == NULL) {
+ /* If the default stream is requested, just stat the base file. */
+ if (is_ntfs_default_stream_smb_fname(smb_fname)) {
+ return streams_depot_stat_base(handle, smb_fname, true);
+ }
+
+ /* Stat the actual stream now. */
+ status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
+ false);
+ if (!NT_STATUS_IS_OK(status)) {
+ ret = -1;
+ errno = map_errno_from_nt_status(status);
goto done;
}
- ret = SMB_VFS_NEXT_STAT(handle, stream_fname, sbuf);
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_stream);
+ /* Update the original smb_fname with the stat info. */
+ smb_fname->st = smb_fname_stream->st;
done:
- TALLOC_FREE(stream_fname);
+ TALLOC_FREE(smb_fname_stream);
return ret;
}
-static int streams_depot_lstat(vfs_handle_struct *handle, const char *fname,
- SMB_STRUCT_STAT *sbuf)
+
+
+static int streams_depot_lstat(vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
{
- char *stream_fname;
+ struct smb_filename *smb_fname_stream = NULL;
+ NTSTATUS status;
int ret = -1;
- if (!is_ntfs_stream_name(fname)) {
- return SMB_VFS_NEXT_LSTAT(handle, fname, sbuf);
+ DEBUG(10, ("streams_depot_lstat called for [%s]\n",
+ smb_fname_str_dbg(smb_fname)));
+
+ if (!is_ntfs_stream_smb_fname(smb_fname)) {
+ return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
- stream_fname = stream_name(handle, fname, false);
- if (stream_fname == NULL) {
+ /* If the default stream is requested, just stat the base file. */
+ if (is_ntfs_default_stream_smb_fname(smb_fname)) {
+ return streams_depot_stat_base(handle, smb_fname, false);
+ }
+
+ /* Stat the actual stream now. */
+ status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
+ false);
+ if (!NT_STATUS_IS_OK(status)) {
+ ret = -1;
+ errno = map_errno_from_nt_status(status);
goto done;
}
- ret = SMB_VFS_NEXT_LSTAT(handle, stream_fname, sbuf);
+ ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_stream);
done:
- TALLOC_FREE(stream_fname);
+ TALLOC_FREE(smb_fname_stream);
return ret;
}
-static int streams_depot_open(vfs_handle_struct *handle, const char *fname,
+static int streams_depot_open(vfs_handle_struct *handle,
+ struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
- TALLOC_CTX *frame;
- char *base = NULL;
- SMB_STRUCT_STAT base_sbuf;
- char *stream_fname;
+ struct smb_filename *smb_fname_stream = NULL;
+ struct smb_filename *smb_fname_base = NULL;
+ NTSTATUS status;
int ret = -1;
- if (!is_ntfs_stream_name(fname)) {
- return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
+ if (!is_ntfs_stream_smb_fname(smb_fname)) {
+ return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
- frame = talloc_stackframe();
+ /* If the default stream is requested, just open the base file. */
+ if (is_ntfs_default_stream_smb_fname(smb_fname)) {
+ char *tmp_stream_name;
+
+ tmp_stream_name = smb_fname->stream_name;
+ smb_fname->stream_name = NULL;
+ ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
+ smb_fname->stream_name = tmp_stream_name;
- if (!NT_STATUS_IS_OK(split_ntfs_stream_name(talloc_tos(), fname,
- &base, NULL))) {
+ return ret;
+ }
+
+ /* Ensure the base file still exists. */
+ smb_fname_base = synthetic_smb_fname(talloc_tos(),
+ smb_fname->base_name,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_base == NULL) {
+ ret = -1;
errno = ENOMEM;
goto done;
}
- ret = SMB_VFS_NEXT_STAT(handle, base, &base_sbuf);
-
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
if (ret == -1) {
goto done;
}
- TALLOC_FREE(base);
-
- stream_fname = stream_name(handle, fname, true);
- if (stream_fname == NULL) {
+ /* Determine the stream name, and then open it. */
+ status = stream_smb_fname(handle, smb_fname, &smb_fname_stream, true);
+ if (!NT_STATUS_IS_OK(status)) {
+ ret = -1;
+ errno = map_errno_from_nt_status(status);
goto done;
}
- ret = SMB_VFS_NEXT_OPEN(handle, stream_fname, fsp, flags, mode);
+ ret = SMB_VFS_NEXT_OPEN(handle, smb_fname_stream, fsp, flags, mode);
done:
- TALLOC_FREE(frame);
+ TALLOC_FREE(smb_fname_stream);
+ TALLOC_FREE(smb_fname_base);
return ret;
}
-static int streams_depot_unlink(vfs_handle_struct *handle, const char *fname)
+static int streams_depot_unlink(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
{
+ struct smb_filename *smb_fname_base = NULL;
int ret = -1;
- SMB_STRUCT_STAT sbuf;
- DEBUG(10, ("streams_depot_unlink called for %s\n", fname));
+ DEBUG(10, ("streams_depot_unlink called for %s\n",
+ smb_fname_str_dbg(smb_fname)));
- if (is_ntfs_stream_name(fname)) {
- char *stream_fname;
+ /* If there is a valid stream, just unlink the stream and return. */
+ if (is_ntfs_stream_smb_fname(smb_fname) &&
+ !is_ntfs_default_stream_smb_fname(smb_fname)) {
+ struct smb_filename *smb_fname_stream = NULL;
+ NTSTATUS status;
- stream_fname = stream_name(handle, fname, false);
- if (stream_fname == NULL) {
+ status = stream_smb_fname(handle, smb_fname, &smb_fname_stream,
+ false);
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
return -1;
}
- ret = SMB_VFS_NEXT_UNLINK(handle, stream_fname);
+ ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_stream);
- TALLOC_FREE(stream_fname);
+ TALLOC_FREE(smb_fname_stream);
return ret;
}
* We potentially need to delete the per-inode streams directory
*/
- if (SMB_VFS_NEXT_STAT(handle, fname, &sbuf) == -1) {
+ smb_fname_base = synthetic_smb_fname(talloc_tos(),
+ smb_fname->base_name,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_base == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
+ ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
+ } else {
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
+ }
+
+ if (ret == -1) {
+ TALLOC_FREE(smb_fname_base);
+ return -1;
+ }
+
+ /*
+ * We know the unlink should succeed as the ACL
+ * check is already done in the caller. Remove the
+ * file *after* the streams.
+ */
+ {
+ char *dirname = stream_dir(handle, smb_fname_base,
+ &smb_fname_base->st, false);
+
+ if (dirname != NULL) {
+ struct smb_filename *smb_fname_dir =
+ synthetic_smb_fname(talloc_tos(),
+ dirname,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_dir == NULL) {
+ TALLOC_FREE(smb_fname_base);
+ TALLOC_FREE(dirname);
+ errno = ENOMEM;
+ return -1;
+ }
+ SMB_VFS_NEXT_RMDIR(handle, smb_fname_dir);
+ TALLOC_FREE(smb_fname_dir);
+ }
+ TALLOC_FREE(dirname);
+ }
+
+ ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
+ TALLOC_FREE(smb_fname_base);
+ return ret;
+}
+
+static int streams_depot_rmdir(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
+{
+ struct smb_filename *smb_fname_base = NULL;
+ int ret = -1;
+
+ DEBUG(10, ("streams_depot_rmdir called for %s\n",
+ smb_fname->base_name));
+
+ /*
+ * We potentially need to delete the per-inode streams directory
+ */
+
+ smb_fname_base = synthetic_smb_fname(talloc_tos(),
+ smb_fname->base_name,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_base == NULL) {
+ errno = ENOMEM;
return -1;
}
- if (sbuf.st_nlink == 1) {
- char *dirname = stream_dir(handle, fname, &sbuf, false);
+ if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
+ ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
+ } else {
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
+ }
+
+ if (ret == -1) {
+ TALLOC_FREE(smb_fname_base);
+ return -1;
+ }
+
+ /*
+ * We know the rmdir should succeed as the ACL
+ * check is already done in the caller. Remove the
+ * directory *after* the streams.
+ */
+ {
+ char *dirname = stream_dir(handle, smb_fname_base,
+ &smb_fname_base->st, false);
if (dirname != NULL) {
- SMB_VFS_NEXT_RMDIR(handle, dirname);
+ struct smb_filename *smb_fname_dir =
+ synthetic_smb_fname(talloc_tos(),
+ dirname,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_dir == NULL) {
+ TALLOC_FREE(smb_fname_base);
+ TALLOC_FREE(dirname);
+ errno = ENOMEM;
+ return -1;
+ }
+ SMB_VFS_NEXT_RMDIR(handle, smb_fname_dir);
+ TALLOC_FREE(smb_fname_dir);
}
TALLOC_FREE(dirname);
}
- return SMB_VFS_NEXT_UNLINK(handle, fname);
+ ret = SMB_VFS_NEXT_RMDIR(handle, smb_fname_base);
+ TALLOC_FREE(smb_fname_base);
+ return ret;
+}
+
+static int streams_depot_rename(vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname_src,
+ const struct smb_filename *smb_fname_dst)
+{
+ struct smb_filename *smb_fname_src_stream = NULL;
+ struct smb_filename *smb_fname_dst_stream = NULL;
+ bool src_is_stream, dst_is_stream;
+ NTSTATUS status;
+ int ret = -1;
+
+ DEBUG(10, ("streams_depot_rename called for %s => %s\n",
+ smb_fname_str_dbg(smb_fname_src),
+ smb_fname_str_dbg(smb_fname_dst)));
+
+ src_is_stream = is_ntfs_stream_smb_fname(smb_fname_src);
+ dst_is_stream = is_ntfs_stream_smb_fname(smb_fname_dst);
+
+ if (!src_is_stream && !dst_is_stream) {
+ return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
+ smb_fname_dst);
+ }
+
+ /* for now don't allow renames from or to the default stream */
+ if (is_ntfs_default_stream_smb_fname(smb_fname_src) ||
+ is_ntfs_default_stream_smb_fname(smb_fname_dst)) {
+ errno = ENOSYS;
+ goto done;
+ }
+
+ status = stream_smb_fname(handle, smb_fname_src, &smb_fname_src_stream,
+ false);
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
+ goto done;
+ }
+
+ status = stream_smb_fname(handle, smb_fname_dst,
+ &smb_fname_dst_stream, false);
+ if (!NT_STATUS_IS_OK(status)) {
+ errno = map_errno_from_nt_status(status);
+ goto done;
+ }
+
+ ret = SMB_VFS_NEXT_RENAME(handle, smb_fname_src_stream,
+ smb_fname_dst_stream);
+
+done:
+ TALLOC_FREE(smb_fname_src_stream);
+ TALLOC_FREE(smb_fname_dst_stream);
+ return ret;
}
static bool add_one_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
struct stream_struct **streams,
- const char *name, SMB_OFF_T size,
- SMB_OFF_T alloc_size)
+ const char *name, off_t size,
+ off_t alloc_size)
{
struct stream_struct *tmp;
- tmp = TALLOC_REALLOC_ARRAY(mem_ctx, *streams, struct stream_struct,
+ tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
(*num_streams)+1);
if (tmp == NULL) {
return false;
{
struct streaminfo_state *state =
(struct streaminfo_state *)private_data;
- char *full_sname;
- SMB_STRUCT_STAT sbuf;
+ struct smb_filename *smb_fname = NULL;
+ char *sname = NULL;
+ bool ret;
- if (asprintf(&full_sname, "%s/%s", dirname, dirent) == -1) {
+ sname = talloc_asprintf(talloc_tos(), "%s/%s", dirname, dirent);
+ if (sname == NULL) {
state->status = NT_STATUS_NO_MEMORY;
- return false;
+ ret = false;
+ goto out;
}
- if (SMB_VFS_NEXT_STAT(state->handle, full_sname, &sbuf) == -1) {
- DEBUG(10, ("Could not stat %s: %s\n", full_sname,
- strerror(errno)));
- SAFE_FREE(full_sname);
- return true;
+
+ smb_fname = synthetic_smb_fname(talloc_tos(), sname, NULL, NULL, 0);
+ if (smb_fname == NULL) {
+ state->status = NT_STATUS_NO_MEMORY;
+ ret = false;
+ goto out;
}
- SAFE_FREE(full_sname);
+ if (SMB_VFS_NEXT_STAT(state->handle, smb_fname) == -1) {
+ DEBUG(10, ("Could not stat %s: %s\n", sname,
+ strerror(errno)));
+ ret = true;
+ goto out;
+ }
if (!add_one_stream(state->mem_ctx,
&state->num_streams, &state->streams,
- dirent, sbuf.st_size,
- get_allocation_size(
- state->handle->conn, NULL, &sbuf))) {
+ dirent, smb_fname->st.st_ex_size,
+ SMB_VFS_GET_ALLOC_SIZE(state->handle->conn, NULL,
+ &smb_fname->st))) {
state->status = NT_STATUS_NO_MEMORY;
- return false;
+ ret = false;
+ goto out;
}
- return true;
+ ret = true;
+ out:
+ TALLOC_FREE(sname);
+ TALLOC_FREE(smb_fname);
+ return ret;
}
static NTSTATUS streams_depot_streaminfo(vfs_handle_struct *handle,
struct files_struct *fsp,
- const char *fname,
+ const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
- SMB_STRUCT_STAT sbuf;
+ struct smb_filename *smb_fname_base = NULL;
int ret;
NTSTATUS status;
struct streaminfo_state state;
+ smb_fname_base = synthetic_smb_fname(talloc_tos(),
+ smb_fname->base_name,
+ NULL,
+ NULL,
+ smb_fname->flags);
+ if (smb_fname_base == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
if ((fsp != NULL) && (fsp->fh->fd != -1)) {
- if (is_ntfs_stream_name(fsp->fsp_name)) {
- return NT_STATUS_INVALID_PARAMETER;
- }
- ret = SMB_VFS_NEXT_FSTAT(handle, fsp, &sbuf);
+ ret = SMB_VFS_NEXT_FSTAT(handle, fsp, &smb_fname_base->st);
}
else {
- if (is_ntfs_stream_name(fname)) {
- return NT_STATUS_INVALID_PARAMETER;
+ if (smb_fname_base->flags & SMB_FILENAME_POSIX_PATH) {
+ ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname_base);
+ } else {
+ ret = SMB_VFS_NEXT_STAT(handle, smb_fname_base);
}
- ret = SMB_VFS_NEXT_STAT(handle, fname, &sbuf);
}
if (ret == -1) {
- return map_nt_error_from_unix(errno);
- }
-
- state.streams = NULL;
- state.num_streams = 0;
-
- if (!S_ISDIR(sbuf.st_mode)) {
- if (!add_one_stream(mem_ctx,
- &state.num_streams, &state.streams,
- "::$DATA", sbuf.st_size,
- get_allocation_size(handle->conn, fsp,
- &sbuf))) {
- return NT_STATUS_NO_MEMORY;
- }
+ status = map_nt_error_from_unix(errno);
+ goto out;
}
+ state.streams = *pstreams;
+ state.num_streams = *pnum_streams;
state.mem_ctx = mem_ctx;
state.handle = handle;
state.status = NT_STATUS_OK;
- status = walk_streams(handle, fname, &sbuf, NULL, collect_one_stream,
+ if (S_ISLNK(smb_fname_base->st.st_ex_mode)) {
+ /*
+ * Currently we do't have SMB_VFS_LLISTXATTR
+ * inside the VFS which means there's no way
+ * to cope with a symlink when lp_posix_pathnames().
+ * returns true. For now ignore links.
+ * FIXME - by adding SMB_VFS_LLISTXATTR. JRA.
+ */
+ status = NT_STATUS_OK;
+ } else {
+ status = walk_streams(handle, smb_fname_base, NULL, collect_one_stream,
&state);
+ }
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(state.streams);
- return status;
+ goto out;
}
if (!NT_STATUS_IS_OK(state.status)) {
TALLOC_FREE(state.streams);
- return state.status;
+ status = state.status;
+ goto out;
}
*pnum_streams = state.num_streams;
*pstreams = state.streams;
- return NT_STATUS_OK;
+ status = SMB_VFS_NEXT_STREAMINFO(handle,
+ fsp,
+ smb_fname_base,
+ mem_ctx,
+ pnum_streams,
+ pstreams);
+
+ out:
+ TALLOC_FREE(smb_fname_base);
+ return status;
}
-static uint32_t streams_depot_fs_capabilities(struct vfs_handle_struct *handle)
+static uint32_t streams_depot_fs_capabilities(struct vfs_handle_struct *handle,
+ enum timestamp_set_resolution *p_ts_res)
{
- return SMB_VFS_NEXT_FS_CAPABILITIES(handle) | FILE_NAMED_STREAMS;
+ return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res) | FILE_NAMED_STREAMS;
}
-/* VFS operations structure */
-
-static vfs_op_tuple streams_depot_ops[] = {
- {SMB_VFS_OP(streams_depot_fs_capabilities), SMB_VFS_OP_FS_CAPABILITIES,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(streams_depot_open), SMB_VFS_OP_OPEN,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(streams_depot_stat), SMB_VFS_OP_STAT,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(streams_depot_lstat), SMB_VFS_OP_LSTAT,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(streams_depot_unlink), SMB_VFS_OP_UNLINK,
- SMB_VFS_LAYER_TRANSPARENT},
- {SMB_VFS_OP(streams_depot_streaminfo), SMB_VFS_OP_STREAMINFO,
- SMB_VFS_LAYER_OPAQUE},
- {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+static struct vfs_fn_pointers vfs_streams_depot_fns = {
+ .fs_capabilities_fn = streams_depot_fs_capabilities,
+ .open_fn = streams_depot_open,
+ .stat_fn = streams_depot_stat,
+ .lstat_fn = streams_depot_lstat,
+ .unlink_fn = streams_depot_unlink,
+ .rmdir_fn = streams_depot_rmdir,
+ .rename_fn = streams_depot_rename,
+ .streaminfo_fn = streams_depot_streaminfo,
};
-NTSTATUS vfs_streams_depot_init(void);
-NTSTATUS vfs_streams_depot_init(void)
+static_decl_vfs;
+NTSTATUS vfs_streams_depot_init(TALLOC_CTX *ctx)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "streams_depot",
- streams_depot_ops);
+ &vfs_streams_depot_fns);
}
git.samba.org / samba.git / blobdiff