s3: VFS: vfs_shadow_copy2. Implement unlinkat().

[samba.git] / source3 / modules / vfs_shadow_copy2.c

diff --git a/source3/modules/vfs_shadow_copy2.c b/source3/modules/vfs_shadow_copy2.c
index 5417c9f3b82e5c73351246519f773b8565ab384c..da8097ca58f9ad8e2a8009c36999c9fcb6a8c357 100644 (file)
--- a/source3/modules/vfs_shadow_copy2.c
+++ b/source3/modules/vfs_shadow_copy2.c
@@ -1511,6 +1511,28 @@ static int shadow_copy2_unlink(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
 }
 
+static int shadow_copy2_unlinkat(vfs_handle_struct *handle,
+                       struct files_struct *dirfsp,
+                       const struct smb_filename *smb_fname,
+                       int flags)
+{
+       time_t timestamp = 0;
+
+       if (!shadow_copy2_strip_snapshot(talloc_tos(), handle,
+                                        smb_fname->base_name,
+                                        &timestamp, NULL)) {
+               return -1;
+       }
+       if (timestamp != 0) {
+               errno = EROFS;
+               return -1;
+       }
+       return SMB_VFS_NEXT_UNLINKAT(handle,
+                       dirfsp,
+                       smb_fname,
+                       flags);
+}
+
 static int shadow_copy2_chmod(vfs_handle_struct *handle,
                        const struct smb_filename *smb_fname,
                        mode_t mode)
@@ -3166,6 +3188,7 @@ static struct vfs_fn_pointers vfs_shadow_copy2_fns = {
        .fstat_fn = shadow_copy2_fstat,
        .open_fn = shadow_copy2_open,
        .unlink_fn = shadow_copy2_unlink,
+       .unlinkat_fn = shadow_copy2_unlinkat,
        .chmod_fn = shadow_copy2_chmod,
        .chown_fn = shadow_copy2_chown,
        .chdir_fn = shadow_copy2_chdir,