diff options
| author |   Willem de Bruijn <willemb@google.com> | 2019-09-11 15:50:51 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-09-13 21:44:19 +0200 |
| commit | c6af0c227a22bb6bb8ff72f043e0fb6d99fd6515 (patch) | |
| tree | 12f4f3b38877b029a5342e2a8f63d8131dad9b27 /include/net/inet_sock.h | |
| parent | PTP: add support for one-shot output (diff) | |
| download | linux-dev-c6af0c227a22bb6bb8ff72f043e0fb6d99fd6515.tar.xz linux-dev-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 '')
| -rw-r--r-- | include/net/inet_sock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index 7769c9b36d75..34c4436fd18f 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -160,6 +160,7 @@ struct inet_cork { char priority; __u16 gso_size; u64 transmit_time; + u32 mark; }; struct inet_cork_full { |