From: Paulo Alcantara <pc@manguebit.com>
Date: Tue, 14 Mar 2023 20:32:55 -0300
Subject: [PATCH] cifs: return DFS root session id in DebugData
Git-commit: f446a630802f154ef0087771683bd4f8e9d08384
References: bsc#1193629
Patch-mainline: v6.3-rc3
Return the DFS root session id in /proc/fs/cifs/DebugData to make it
easier to track which IPC tcon was used to get new DFS referrals for a
specific connection, and aids in debugging.
A simple output of it would be
Sessions:
1) Address: 192.168.1.13 Uses: 1 Capability: 0x300067 Session Status: 1
Security type: RawNTLMSSP SessionId: 0xd80000000009
User: 0 Cred User: 0
DFS root session id: 0x128006c000035
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
fs/cifs/cifs_debug.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 1911f7016fa1..19a70a69c760 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -420,6 +420,11 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
from_kuid(&init_user_ns, ses->linux_uid),
from_kuid(&init_user_ns, ses->cred_uid));
+ if (ses->dfs_root_ses) {
+ seq_printf(m, "\n\tDFS root session id: 0x%llx",
+ ses->dfs_root_ses->Suid);
+ }
+
spin_lock(&ses->chan_lock);
if (CIFS_CHAN_NEEDS_RECONNECT(ses, 0))
seq_puts(m, "\tPrimary channel: DISCONNECTED ");
--
2.40.0