diff options
| author | Soheil Hassas Yeganeh <soheil@google.com> | 2016-04-02 23:08:11 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-04 15:50:30 -0400 |
| commit | ad1e46a837163a3e7160a1250825bcfafd2e714b (patch) | |
| tree | f02d47ab7df711de7a6794fe54eae6768eb7b30f /net/ipv6/udp.c | |
| parent | 24025c465f77c3585f73450bab19501b2edd6fba (diff) | |
ipv6: process socket-level control messages in IPv6
Process socket-level control messages by invoking
__sock_cmsg_send in ip6_datagram_send_ctl for control messages on
the SOL_SOCKET layer.
This makes sure whenever ip6_datagram_send_ctl is called for
udp and raw, we also process socket-level control messages.
This is a bit uglier than IPv4, since IPv6 does not have
something like ipcm_cookie. Perhaps we can later create
a control message cookie for IPv6?
Note that this commit interprets new control messages that
were ignored before. As such, this commit does not change
the behavior of IPv6 control messages.
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 8125931106be..2a787af42163 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1128,6 +1128,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) int connected = 0; int is_udplite = IS_UDPLITE(sk); int (*getfrag)(void *, char *, int, int, int, struct sk_buff *); + struct sockcm_cookie sockc; /* destination address check */ if (sin6) { @@ -1247,6 +1248,7 @@ do_udp_sendmsg: fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex; fl6.flowi6_mark = sk->sk_mark; + sockc.tsflags = 0; if (msg->msg_controllen) { opt = &opt_space; @@ -1254,7 +1256,8 @@ do_udp_sendmsg: opt->tot_len = sizeof(*opt); err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt, - &hlimit, &tclass, &dontfrag); + &hlimit, &tclass, &dontfrag, + &sockc); if (err < 0) { fl6_sock_release(flowlabel); return err; |