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authorMichio Honda <micchie@sfc.wide.ad.jp>2011-04-26 20:19:36 +0900
committerDavid S. Miller <davem@davemloft.net>2011-06-02 02:04:53 -0700
commit8a07eb0a50aebc8c95478d49c28c7f8419a26cef (patch)
treea98ab91189d1dd0781d7768c0b0d395c1919d571 /net/sctp/protocol.c
parent7dc04d712203eecdc1435a4cd135935c4a297be5 (diff)
sctp: Add ASCONF operation on the single-homed host
In this case, the SCTP association transmits an ASCONF packet including addition of the new IP address and deletion of the old address. This patch implements this functionality. In this case, the ASCONF chunk is added to the beginning of the queue, because the other chunks cannot be transmitted in this state. Signed-off-by: Michio Honda <micchie@sfc.wide.ad.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/protocol.c')
-rw-r--r--net/sctp/protocol.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 013c6136c546..af0a6b0fc9b6 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -503,7 +503,9 @@ static void sctp_v4_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
sctp_v4_dst_saddr(&dst_saddr, fl4, htons(bp->port));
rcu_read_lock();
list_for_each_entry_rcu(laddr, &bp->address_list, list) {
- if (!laddr->valid || (laddr->state != SCTP_ADDR_SRC))
+ if (!laddr->valid || (laddr->state == SCTP_ADDR_DEL) ||
+ (laddr->state != SCTP_ADDR_SRC &&
+ !asoc->src_out_of_asoc_ok))
continue;
if (sctp_v4_cmp_addr(&dst_saddr, &laddr->a))
goto out_unlock;