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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2012-05-04 05:24:54 +0000
committerDavid S. Miller <davem@davemloft.net>2012-05-10 23:15:47 -0400
commite0268868ba064980488fc8c194db3d8e9fb2959c (patch)
tree7b8bfb4cceb0a5d184a2fe651aab5aec59a216d3 /include
parentc57b54684060c8aced64a5b78ff69ff289af97b9 (diff)
downloadlinaro-lsk-e0268868ba064980488fc8c194db3d8e9fb2959c.tar.gz
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 <nicolas.dichtel@6wind.com> Acked-by: Vlad Yaseivch <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/sctp/sctp.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 6ee44b24864..a2ef81466b0 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__ */