path: root/net/dccp
diff options
authorHannes Frederic Sowa <hannes@stressinduktion.org>2013-12-15 03:41:14 +0100
committerDavid S. Miller <davem@davemloft.net>2013-12-18 17:37:05 -0500
commit93b36cf3425b9bd9c56df7680fb237686b9c82ae (patch)
tree1562e2899394e011e22ce21523dd6ce1defc3ee8 /net/dccp
parentcd174e67a6b312fce9bab502ba2b0583e11f537f (diff)
ipv6: support IPV6_PMTU_INTERFACE on sockets
IPV6_PMTU_INTERFACE is the same as IPV6_PMTU_PROBE for ipv6. Add it nontheless for symmetry with IPv4 sockets. Also drop incoming MTU information if this mode is enabled. The additional bit in ipv6_pinfo just eats in the padding behind the bitfield. There are no changes to the layout of the struct at all. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
1 files changed, 3 insertions, 0 deletions
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 2b90a786e475..629019e6f8e9 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -141,6 +141,9 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (type == ICMPV6_PKT_TOOBIG) {
struct dst_entry *dst = NULL;
+ if (!ip6_sk_accept_pmtu(sk))
+ goto out;
if (sock_owned_by_user(sk))
goto out;
if ((1 << sk->sk_state) & (DCCPF_LISTEN | DCCPF_CLOSED))

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