From: Jeremy Allison <jra@samba.org>
Date: Fri, 9 Aug 2019 20:49:46 +0000 (-0700)
Subject: s3: VFS: vfs_ceph_snapshots. Implement renameat().
X-Git-Tag: tdb-1.4.2~95
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a415f63e6383ef4a293240ab77ec4ba92f25b4e;p=thirdparty%2Fsamba.git

s3: VFS: vfs_ceph_snapshots. 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_ceph_snapshots.c b/source3/modules/vfs_ceph_snapshots.c
index a70a6adb1f4..3bc89174c7e 100644
--- a/source3/modules/vfs_ceph_snapshots.c
+++ b/source3/modules/vfs_ceph_snapshots.c
@@ -788,6 +788,44 @@ static int ceph_snap_gmt_rename(vfs_handle_struct *handle,
 	return SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
 }
 
+static int ceph_snap_gmt_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)
+{
+	int ret;
+	time_t timestamp_src, timestamp_dst;
+
+	ret = ceph_snap_gmt_strip_snapshot(handle,
+					smb_fname_src->base_name,
+					&timestamp_src, NULL, 0);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+	ret = ceph_snap_gmt_strip_snapshot(handle,
+					smb_fname_dst->base_name,
+					&timestamp_dst, NULL, 0);
+	if (ret < 0) {
+		errno = -ret;
+		return -1;
+	}
+	if (timestamp_src != 0) {
+		errno = EXDEV;
+		return -1;
+	}
+	if (timestamp_dst != 0) {
+		errno = EROFS;
+		return -1;
+	}
+	return SMB_VFS_NEXT_RENAMEAT(handle,
+				srcfsp,
+				smb_fname_src,
+				dstfsp,
+				smb_fname_dst);
+}
+
 /* block links from writeable shares to snapshots for now, like other modules */
 static int ceph_snap_gmt_symlink(vfs_handle_struct *handle,
 				const char *link_contents,
@@ -1595,6 +1633,7 @@ static struct vfs_fn_pointers ceph_snap_fns = {
 	.disk_free_fn = ceph_snap_gmt_disk_free,
 	.get_quota_fn = ceph_snap_gmt_get_quota,
 	.rename_fn = ceph_snap_gmt_rename,
+	.renameat_fn = ceph_snap_gmt_renameat,
 	.link_fn = ceph_snap_gmt_link,
 	.symlink_fn = ceph_snap_gmt_symlink,
 	.stat_fn = ceph_snap_gmt_stat,