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| author | Willem de Bruijn <willemb@google.com> | 2019-09-11 21:50:51 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-13 21:44:19 +0200 |
| commit | c6af0c227a22bb6bb8ff72f043e0fb6d99fd6515 (patch) | |
| tree | 12f4f3b38877b029a5342e2a8f63d8131dad9b27 /net/ipv4/udp.c | |
| parent | PTP: add support for one-shot output (diff) | |
| download | linux-c6af0c227a22bb6bb8ff72f043e0fb6d99fd6515.tar.xz linux-c6af0c227a22bb6bb8ff72f043e0fb6d99fd6515.zip | |
ip: support SO_MARK cmsg
Enable setting skb->mark for UDP and RAW sockets using cmsg.
This is analogous to existing support for TOS, TTL, txtime, etc.
Packet sockets already support this as of commit c7d39e32632e
("packet: support per-packet fwmark for af_packet sendmsg").
Similar to other fields, implement by
1. initialize the sockcm_cookie.mark from socket option sk_mark
2. optionally overwrite this in ip_cmsg_send/ip6_datagram_send_ctl
3. initialize inet_cork.mark from sockcm_cookie.mark
4. initialize each (usually just one) skb->mark from inet_cork.mark
Step 1 is handled in one location for most protocols by ipcm_init_sk
as of commit 351782067b6b ("ipv4: ipcm_cookie initializers").
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index d88821c794fb..fbcd9be3a470 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1130,7 +1130,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) fl4 = &fl4_stack; - flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos, + flowi4_init_output(fl4, ipc.oif, ipc.sockc.mark, tos, RT_SCOPE_UNIVERSE, sk->sk_protocol, flow_flags, faddr, saddr, dport, inet->inet_sport, |