This is a note to let you know that I've just added the patch titled
smb: client: fix dfs link mount against w2k8
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
smb-client-fix-dfs-link-mount-against-w2k8.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 11260c3d608b59231f4c228147a795ab21a10b33 Mon Sep 17 00:00:00 2001
From: Paulo Alcantara <pc@xxxxxxxxxxxxx>
Date: Wed, 2 Aug 2023 13:43:03 -0300
Subject: smb: client: fix dfs link mount against w2k8
From: Paulo Alcantara <pc@xxxxxxxxxxxxx>
commit 11260c3d608b59231f4c228147a795ab21a10b33 upstream.
Customer reported that they couldn't mount their DFS link that was
seen by the client as a DFS interlink -- special form of DFS link
where its single target may point to a different DFS namespace -- and
it turned out that it was just a regular DFS link where its referral
header flags missed the StorageServers bit thus making the client
think it couldn't tree connect to target directly without requiring
further referrals.
When the DFS link referral header flags misses the StoraServers bit
and its target doesn't respond to any referrals, then tree connect to
it.
Fixes: a1c0d00572fc ("cifs: share dfs connections and supers")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Paulo Alcantara (SUSE) <pc@xxxxxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/smb/client/dfs.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/fs/smb/client/dfs.c
+++ b/fs/smb/client/dfs.c
@@ -178,8 +178,12 @@ static int __dfs_mount_share(struct cifs
struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl);
rc = dfs_get_referral(mnt_ctx, ref_path + 1, NULL, &tl);
- if (rc)
+ if (rc) {
+ rc = cifs_mount_get_tcon(mnt_ctx);
+ if (!rc)
+ rc = cifs_is_path_remote(mnt_ctx);
break;
+ }
tit = dfs_cache_get_tgt_iterator(&tl);
if (!tit) {
Patches currently in stable-queue which might be from pc@xxxxxxxxxxxxx are
queue-6.4/smb-client-fix-dfs-link-mount-against-w2k8.patch
