sctp: Release all routes when processing acks ADD_IP or DEL_IP

When processing an ACK for ADD_IP parameter, we only release
the routes on non-active transports.  This can cause a wrong
source address to be used.  We can release the routes and
cause new route lookups and source address selection so that
new addresses can be used as source.  Additionally, we don't need
to lookup routes for all transports at the same time.  We can let
the transmit code path update the cached route when the transport
actually sends something.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 844adfdeb463ff7b5fda71b407b50967c67d63ac..f87ccb11a520269a3b73b3d35c2ef7c51f42db4e 100644 (file)
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3193,11 +3193,8 @@ static void sctp_asconf_param_success(struct sctp_association *asoc,
                local_bh_enable();
                list_for_each_entry(transport, &asoc->peer.transport_addr_list,
                                transports) {
-                       if (transport->state == SCTP_ACTIVE)
-                               continue;
                        dst_release(transport->dst);
-                       sctp_transport_route(transport, NULL,
-                                            sctp_sk(asoc->base.sk));
+                       transport->dst = NULL;
                }
                break;
        case SCTP_PARAM_DEL_IP:
@@ -3207,8 +3204,7 @@ static void sctp_asconf_param_success(struct sctp_association *asoc,
                list_for_each_entry(transport, &asoc->peer.transport_addr_list,
                                transports) {
                        dst_release(transport->dst);
-                       sctp_transport_route(transport, NULL,
-                                            sctp_sk(asoc->base.sk));
+                       transport->dst = NULL;
                }
                break;
        default: