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| author | David S. Miller <davem@davemloft.net> | 2015-06-24 02:58:51 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-24 02:58:51 -0700 |
| commit | 3a07bd6fead4f00f67b1bf5f551e686661c4f52c (patch) | |
| tree | f8b8f257d928a9ae1aeb3fdbe748f03f1012f02e /net/ipv6 | |
| parent | 204621551b2a0060a013b92f7add4d5c452fa7cb (diff) | |
| parent | f1590670ce069eefeb93916391a67643e6ad1630 (diff) | |
| download | linux-3a07bd6fead4f00f67b1bf5f551e686661c4f52c.tar.bz2 | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/mellanox/mlx4/main.c
net/packet/af_packet.c
Both conflicts were cases of simple overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/datagram.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index 762a58c772b8..62d908e64eeb 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -325,6 +325,16 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu) kfree_skb(skb); } +/* For some errors we have valid addr_offset even with zero payload and + * zero port. Also, addr_offset should be supported if port is set. + */ +static inline bool ipv6_datagram_support_addr(struct sock_exterr_skb *serr) +{ + return serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6 || + serr->ee.ee_origin == SO_EE_ORIGIN_ICMP || + serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL || serr->port; +} + /* IPv6 supports cmsg on all origins aside from SO_EE_ORIGIN_LOCAL. * * At one point, excluding local errors was a quick test to identify icmp/icmp6 @@ -389,7 +399,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) serr = SKB_EXT_ERR(skb); - if (sin && serr->port) { + if (sin && ipv6_datagram_support_addr(serr)) { const unsigned char *nh = skb_network_header(skb); sin->sin6_family = AF_INET6; sin->sin6_flowinfo = 0; |