diff options
| author | Erin MacNeil <lnx.erin@gmail.com> | 2022-04-27 16:02:37 -0400 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-04-28 13:08:15 -0700 |
| commit | 6fd1d51cfa253b5ee7dae18d7cf1df830e9b6137 (patch) | |
| tree | a31571fbe97aecf0397022180c5f481f5a70636b /net/socket.c | |
| parent | 0e55546b189fc5f1ce5149445d7df083f26d4f25 (diff) | |
| download | linux-6fd1d51cfa253b5ee7dae18d7cf1df830e9b6137.tar.bz2 | |
net: SO_RCVMARK socket option for SO_MARK with recvmsg()
Adding a new socket option, SO_RCVMARK, to indicate that SO_MARK
should be included in the ancillary data returned by recvmsg().
Renamed the sock_recv_ts_and_drops() function to sock_recv_cmsgs().
Signed-off-by: Erin MacNeil <lnx.erin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20220427200259.2564-1-lnx.erin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/net/socket.c b/net/socket.c index 6887840682bb..f0c39c874665 100644 --- a/net/socket.c +++ b/net/socket.c @@ -930,13 +930,22 @@ static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, sizeof(__u32), &SOCK_SKB_CB(skb)->dropcount); } -void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, - struct sk_buff *skb) +static void sock_recv_mark(struct msghdr *msg, struct sock *sk, + struct sk_buff *skb) +{ + if (sock_flag(sk, SOCK_RCVMARK) && skb) + put_cmsg(msg, SOL_SOCKET, SO_MARK, sizeof(__u32), + &skb->mark); +} + +void __sock_recv_cmsgs(struct msghdr *msg, struct sock *sk, + struct sk_buff *skb) { sock_recv_timestamp(msg, sk, skb); sock_recv_drops(msg, sk, skb); + sock_recv_mark(msg, sk, skb); } -EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops); +EXPORT_SYMBOL_GPL(__sock_recv_cmsgs); INDIRECT_CALLABLE_DECLARE(int inet_recvmsg(struct socket *, struct msghdr *, size_t, int)); |