diff options
| author |   Hannes Frederic Sowa <hannes@stressinduktion.org> | 2013-12-15 03:41:14 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-12-18 17:37:05 -0500 |
| commit | 93b36cf3425b9bd9c56df7680fb237686b9c82ae (patch) | |
| tree | 1562e2899394e011e22ce21523dd6ce1defc3ee8 /net/ipv6/udp.c | |
| parent | ipv4: new ip_no_pmtu_disc mode to always discard incoming frag needed msgs (diff) | |
| download | linux-dev-93b36cf3425b9bd9c56df7680fb237686b9c82ae.tar.xz linux-dev-93b36cf3425b9bd9c56df7680fb237686b9c82ae.zip | |
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/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 089c741a3992..65ed5cd79264 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -538,8 +538,11 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (sk == NULL) return; - if (type == ICMPV6_PKT_TOOBIG) + if (type == ICMPV6_PKT_TOOBIG) { + if (!ip6_sk_accept_pmtu(sk)) + goto out; ip6_sk_update_pmtu(skb, sk, info); + } if (type == NDISC_REDIRECT) { ip6_sk_redirect(skb, sk); goto out; |