diff options
| author | Hannes Frederic Sowa <hannes@stressinduktion.org> | 2014-02-18 21:38:08 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-19 16:28:42 -0500 |
| commit | c8e6ad0829a723a74cd2fea9996a3392d2579a18 (patch) | |
| tree | 370dd2b5d5ad64cabef6fa837aac4ca8a1b9a958 /net/ipv4/udp.c | |
| parent | 21f374c6cfbf98c1efceee0b528ce784d215935c (diff) | |
| download | linux-c8e6ad0829a723a74cd2fea9996a3392d2579a18.tar.bz2 | |
ipv6: honor IPV6_PKTINFO with v4 mapped addresses on sendmsg
In case we decide in udp6_sendmsg to send the packet down the ipv4
udp_sendmsg path because the destination is either of family AF_INET or
the destination is an ipv4 mapped ipv6 address, we don't honor the
maybe specified ipv4 mapped ipv6 address in IPV6_PKTINFO.
We simply can check for this option in ip_cmsg_send because no calls to
ipv6 module functions are needed to do so.
Reported-by: Gert Doering <gert@space.net>
Cc: Tore Anderson <tore@fud.no>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 77bd16fa9f34..4468e1adc094 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -931,7 +931,8 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, sock_tx_timestamp(sk, &ipc.tx_flags); if (msg->msg_controllen) { - err = ip_cmsg_send(sock_net(sk), msg, &ipc); + err = ip_cmsg_send(sock_net(sk), msg, &ipc, + sk->sk_family == AF_INET6); if (err) return err; if (ipc.opt) |