diff options
| author | Michael Tuexen <tuexen@FreeBSD.org> | 2024-10-07 14:46:41 +0000 |
|---|---|---|
| committer | Michael Tuexen <tuexen@FreeBSD.org> | 2024-10-07 14:46:41 +0000 |
| commit | 3326ab87cc22cb70a41e13aefd8684ff0feed01f (patch) | |
| tree | 9345c86ecfe920dab6a48922e6eb485a2e4bce26 | |
| parent | 8161000892830ee52bc8048be91b40cdad25fea8 (diff) | |
getsockopt: improve locking for SOL_SOCKET level socket options
Ensure SOLISTENING() is done inside SOCK_LOCK()/SOCK_UNLOCK()
for getsockopt() handling of SOL_SOCKET-level socket options.
Reviewed by: markj, rscheff
MFC after: 1 week
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D46881
| -rw-r--r-- | sys/kern/uipc_socket.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c index 189e8ca5b498..a139a9d1f301 100644 --- a/sys/kern/uipc_socket.c +++ b/sys/kern/uipc_socket.c @@ -4117,23 +4117,31 @@ integer: goto integer; case SO_SNDBUF: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_sbsnd_hiwat : so->so_snd.sb_hiwat; + SOCK_UNLOCK(so); goto integer; case SO_RCVBUF: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_sbrcv_hiwat : so->so_rcv.sb_hiwat; + SOCK_UNLOCK(so); goto integer; case SO_SNDLOWAT: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_sbsnd_lowat : so->so_snd.sb_lowat; + SOCK_UNLOCK(so); goto integer; case SO_RCVLOWAT: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_sbrcv_lowat : so->so_rcv.sb_lowat; + SOCK_UNLOCK(so); goto integer; case SO_SNDTIMEO: @@ -4190,15 +4198,21 @@ integer: break; case SO_LISTENQLIMIT: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_qlimit : 0; + SOCK_UNLOCK(so); goto integer; case SO_LISTENQLEN: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_qlen : 0; + SOCK_UNLOCK(so); goto integer; case SO_LISTENINCQLEN: + SOCK_LOCK(so); optval = SOLISTENING(so) ? so->sol_incqlen : 0; + SOCK_UNLOCK(so); goto integer; case SO_TS_CLOCK: |