ipv4: Add redirect support to all protocol icmp error handlers.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 0 deletions

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 80564fe03024..9fb4247f9a99 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -423,6 +423,18 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
         sctp_retransmit(&asoc->outqueue, t, SCTP_RTXR_PMTUD);
 }
 
+static void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,
+                               struct sk_buff *skb)
+{
+        struct dst_entry *dst;
+
+        if (!t)
+                return;
+        dst = sctp_transport_dst_check(t);
+        if (dst && dst->ops->redirect)
+                dst->ops->redirect(dst, skb);
+}
+
 /*
  * SCTP Implementer's Guide, 2.37 ICMP handling procedures
  *
@@ -628,6 +640,10 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
 
                 err = EHOSTUNREACH;
                 break;
+        case ICMP_REDIRECT:
+                sctp_icmp_redirect(sk, transport, skb);
+                err = 0;
+                break;
         default:
                 goto out_unlock;
         }