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authorMichio Honda <micchie@sfc.wide.ad.jp>2011-04-26 14:32:51 +0400
committerDavid S. Miller <davem@davemloft.net>2011-06-02 13:04:53 +0400
commit9f7d653b67aed2d92540fbb0a8adaf32fcf352ae (patch)
tree1e128f1465135dd70f202b8720c32cbfd536cb68 /net/sctp/bind_addr.c
parent3ced2dddf10f26f0aaff96f3345a3d876cea62f8 (diff)
downloadlinux-9f7d653b67aed2d92540fbb0a8adaf32fcf352ae.tar.xz
sctp: Add Auto-ASCONF support (core).
SCTP reconfigure the IP addresses in the association by using ASCONF chunks as mentioned in RFC5061. For example, we can start to use the newly configured IP address in the existing association. This patch implements automatic ASCONF operation in the SCTP stack with address events in the host computer, which is called auto_asconf. 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/bind_addr.c')
-rw-r--r--net/sctp/bind_addr.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index 83e3011c19ca..17d157325b66 100644
--- a/net/sctp/bind_addr.c
+++ b/net/sctp/bind_addr.c
@@ -534,6 +534,21 @@ int sctp_in_scope(const union sctp_addr *addr, sctp_scope_t scope)
return 0;
}
+int sctp_is_ep_boundall(struct sock *sk)
+{
+ struct sctp_bind_addr *bp;
+ struct sctp_sockaddr_entry *addr;
+
+ bp = &sctp_sk(sk)->ep->base.bind_addr;
+ if (sctp_list_single_entry(&bp->address_list)) {
+ addr = list_entry(bp->address_list.next,
+ struct sctp_sockaddr_entry, list);
+ if (sctp_is_any(sk, &addr->a))
+ return 1;
+ }
+ return 0;
+}
+
/********************************************************************
* 3rd Level Abstractions
********************************************************************/