s3/modules: VFS: shadow_copy2: Add new fchmod_fn implementation

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Ralph Boehme <slow@samba.org>

diff --git a/source3/modules/vfs_shadow_copy2.c b/source3/modules/vfs_shadow_copy2.c
index 5d414f9b09816ca96c72ae9a1a6ca2b1f855d43a..53061927bc76836f884773ac60dd480a1a7dfef2 100644 (file)
--- a/source3/modules/vfs_shadow_copy2.c
+++ b/source3/modules/vfs_shadow_copy2.c
@@ -1448,6 +1448,28 @@ static int shadow_copy2_chmod(vfs_handle_struct *handle,
        return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
 }
 
+static int shadow_copy2_fchmod(vfs_handle_struct *handle,
+                       struct files_struct *fsp,
+                       mode_t mode)
+{
+       time_t timestamp = 0;
+       const struct smb_filename *smb_fname = NULL;
+
+       smb_fname = fsp->fsp_name;
+       if (!shadow_copy2_strip_snapshot(talloc_tos(),
+                                       handle,
+                                       smb_fname,
+                                       &timestamp,
+                                       NULL)) {
+               return -1;
+       }
+       if (timestamp != 0) {
+               errno = EROFS;
+               return -1;
+       }
+       return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
+}
+
 static void store_cwd_data(vfs_handle_struct *handle,
                                const char *connectpath)
 {
@@ -3171,6 +3193,7 @@ static struct vfs_fn_pointers vfs_shadow_copy2_fns = {
        .openat_fn = shadow_copy2_openat,
        .unlinkat_fn = shadow_copy2_unlinkat,
        .chmod_fn = shadow_copy2_chmod,
+       .fchmod_fn = shadow_copy2_fchmod,
        .chdir_fn = shadow_copy2_chdir,
        .ntimes_fn = shadow_copy2_ntimes,
        .readlinkat_fn = shadow_copy2_readlinkat,