From e0268868ba064980488fc8c194db3d8e9fb2959c Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Fri, 4 May 2012 05:24:54 +0000 Subject: sctp: check cached dst before using it dst_check() will take care of SA (and obsolete field), hence IPsec rekeying scenario is taken into account. Signed-off-by: Nicolas Dichtel Acked-by: Vlad Yaseivch Signed-off-by: David S. Miller --- include/net/sctp/sctp.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/net/sctp/sctp.h') diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 6ee44b24864a..a2ef81466b00 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -704,4 +704,17 @@ static inline void sctp_v4_map_v6(union sctp_addr *addr) addr->v6.sin6_addr.s6_addr32[2] = htonl(0x0000ffff); } +/* The cookie is always 0 since this is how it's used in the + * pmtu code. + */ +static inline struct dst_entry *sctp_transport_dst_check(struct sctp_transport *t) +{ + if (t->dst && !dst_check(t->dst, 0)) { + dst_release(t->dst); + t->dst = NULL; + } + + return t->dst; +} + #endif /* __net_sctp_h__ */ -- cgit v1.2.1