lkml.org 
[lkml]   [2021]   [Jul]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] net: core: fix SO_TIMESTAMP_* option setting
Date
I noticed the problem as a systemd-timesyncd (and ntpsec) sync failures:

systemd-timesyncd[586]: Timed out waiting for reply from ...
systemd-timesyncd[586]: Invalid packet timestamp.

Bisected it down to commit 371087aa476
("sock: expose so_timestamp options for mptcp").

The commit should be a no-op but it accidentally reordered option type
and option value:

+void sock_set_timestamp(struct sock *sk, int optname, bool valbool);
...
- __sock_set_timestamps(sk, valbool, true, true);
+ sock_set_timestamp(sk, valbool, optname);

Tested the fix on systemd-timesyncd. The sync failures went away.

CC: Paolo Abeni <pabeni@redhat.com>
CC: Florian Westphal <fw@strlen.de>
CC: Mat Martineau <mathew.j.martineau@linux.intel.com>
CC: David S. Miller <davem@davemloft.net>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Eric Dumazet <edumazet@google.com>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
net/core/sock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/sock.c b/net/core/sock.c
index ba1c0f75cd45..060892372ac5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1068,7 +1068,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
case SO_TIMESTAMP_NEW:
case SO_TIMESTAMPNS_OLD:
case SO_TIMESTAMPNS_NEW:
- sock_set_timestamp(sk, valbool, optname);
+ sock_set_timestamp(sk, optname, valbool);
break;

case SO_TIMESTAMPING_NEW:
--
2.32.0
\
 
 \ /
  Last update: 2021-07-07 11:36    [W:0.057 / U:0.468 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site