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[SCTP]: ADDIP: Don't use an address as source until it is ASCONF-ACKed

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This implements Rules D1 and D4 of Sec 4.3 in the ADDIP draft.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sridhar Samudrala 2006-07-21 14:49:25 -07:00 • committed by David S. Miller
parent 9faa730f1c
commit dc022a9874
6 changed files with 81 additions and 28 deletions
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7
net/sctp/protocol.c
View file

@ -240,7 +240,7 @@ int sctp_copy_local_addr_list(struct sctp_bind_addr *bp, sctp_scope_t scope,
(((AF_INET6 == addr->a.sa.sa_family) &&
(copy_flags & SCTP_ADDR6_ALLOWED) &&
(copy_flags & SCTP_ADDR6_PEERSUPP)))) {
error = sctp_add_bind_addr(bp, &addr->a,
error = sctp_add_bind_addr(bp, &addr->a, 1,
GFP_ATOMIC);
if (error)
goto end_copy;
@ -486,6 +486,8 @@ static struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
list_for_each(pos, &bp->address_list) {
laddr = list_entry(pos, struct sctp_sockaddr_entry,
list);
if (!laddr->use_as_src)
continue;
sctp_v4_dst_saddr(&dst_saddr, dst, bp->port);
if (sctp_v4_cmp_addr(&dst_saddr, &laddr->a))
goto out_unlock;
@ -506,7 +508,8 @@ static struct dst_entry *sctp_v4_get_dst(struct sctp_association *asoc,
list_for_each(pos, &bp->address_list) {
laddr = list_entry(pos, struct sctp_sockaddr_entry, list);
if (AF_INET == laddr->a.sa.sa_family) {
if ((laddr->use_as_src) &&
(AF_INET == laddr->a.sa.sa_family)) {
fl.fl4_src = laddr->a.v4.sin_addr.s_addr;
if (!ip_route_output_key(&rt, &fl)) {
dst = &rt->u.dst;