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packet: support per-packet fwmark for af_packet sendmsg

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Signed-off-by: Edward Hyunkoo Jee <edjee@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Edward Jee 2015-10-08 14:56:49 -07:00 committed by David S. Miller
parent f28ea365cd
commit c7d39e3263
1 changed files with 9 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
net/packet/af_packet.c
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@ -2630,6 +2630,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
__be16 proto;
unsigned char *addr;
int err, reserve = 0;
struct sockcm_cookie sockc;
struct virtio_net_hdr vnet_hdr = { 0 };
int offset = 0;
int vnet_hdr_len;
@ -2665,6 +2666,13 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
if (unlikely(!(dev->flags & IFF_UP)))
goto out_unlock;
sockc.mark = sk->sk_mark;
if (msg->msg_controllen) {
err = sock_cmsg_send(sk, msg, &sockc);
if (unlikely(err))
goto out_unlock;
}
if (sock->type == SOCK_RAW)
reserve = dev->hard_header_len;
if (po->has_vnet_hdr) {
@ -2774,7 +2782,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
skb->protocol = proto;
skb->dev = dev;
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
skb->mark = sockc.mark;
packet_pick_tx_queue(dev, skb);