s3: VFS: vfs_shadow_copy2. Implement renameat().

Currently identical to rename().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

diff --git a/source3/modules/vfs_shadow_copy2.c b/source3/modules/vfs_shadow_copy2.c
index f84a76b5357c96dbfc05c93110309a1c855b5c86..8ab4a6c743a74f8e5c071fc8b72d27c3960dab21 100644 (file)
--- a/source3/modules/vfs_shadow_copy2.c
+++ b/source3/modules/vfs_shadow_copy2.c
@@ -1178,6 +1178,56 @@ static int shadow_copy2_rename(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 }
 
+static int shadow_copy2_renameat(vfs_handle_struct *handle,
+                               files_struct *srcfsp,
+                               const struct smb_filename *smb_fname_src,
+                               files_struct *dstfsp,
+                               const struct smb_filename *smb_fname_dst)
+{
+       time_t timestamp_src = 0;
+       time_t timestamp_dst = 0;
+       char *snappath_src = NULL;
+       char *snappath_dst = NULL;
+
+       if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle,
+                                        smb_fname_src->base_name,
+                                        &timestamp_src, NULL, &snappath_src,
+                                        NULL)) {
+               return -1;
+       }
+       if (!shadow_copy2_strip_snapshot_internal(talloc_tos(), handle,
+                                        smb_fname_dst->base_name,
+                                        &timestamp_dst, NULL, &snappath_dst,
+                                        NULL)) {
+               return -1;
+       }
+       if (timestamp_src != 0) {
+               errno = EXDEV;
+               return -1;
+       }
+       if (timestamp_dst != 0) {
+               errno = EROFS;
+               return -1;
+       }
+       /*
+        * Don't allow rename on already converted paths.
+        */
+       if (snappath_src != NULL) {
+               errno = EXDEV;
+               return -1;
+       }
+       if (snappath_dst != NULL) {
+               errno = EROFS;
+               return -1;
+       }
+       return SMB_VFS_NEXT_RENAMEAT(handle,
+                       srcfsp,
+                       smb_fname_src,
+                       dstfsp,
+                       smb_fname_dst);
+}
+
+
 static int shadow_copy2_symlink(vfs_handle_struct *handle,
                        const char *link_contents,
                        const struct smb_filename *new_smb_fname)
@@ -3123,6 +3173,7 @@ static struct vfs_fn_pointers vfs_shadow_copy2_fns = {
        .disk_free_fn = shadow_copy2_disk_free,
        .get_quota_fn = shadow_copy2_get_quota,
        .rename_fn = shadow_copy2_rename,
+       .renameat_fn = shadow_copy2_renameat,
        .link_fn = shadow_copy2_link,
        .symlink_fn = shadow_copy2_symlink,
        .stat_fn = shadow_copy2_stat,