net: af_unix: enable custom setsockopt for all socket types

Browse source

unix_setsockopt() and the SOCK_CUSTOM_SOCKOPT flag were only wired up
for SOCK_STREAM (introduced along with the stream-only SO_INQ).
Consequently custom AF_UNIX options are unreachable on SOCK_DGRAM and
SOCK_SEQPACKET: those setsockopt() calls bypass unix_setsockopt() and
fall through to the generic sock_setsockopt(), failing with
-ENOPROTOOPT.

Set SOCK_CUSTOM_SOCKOPT for every AF_UNIX socket type in unix_create(), and
also for accepted sockets in unix_accept() (reachable for stream and
seqpacket).

This is a prerequisite for making SO_RIGHTS_NOTRUNC settable on all AF_UNIX
socket types.

Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260813162818.149248-2-jkoolstra@xs4all.nl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Jori Koolstra 2026-08-13 12:28:15 -04:00 • committed by Jakub Kicinski

parent 768af21721

commit de1c489b57

1 changed files with 6 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

10

net/unix/af_unix.c

View file