From 75205f478331cc64ce729ea72d3c8c1837fb59cb Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Thu, 20 Dec 2007 14:12:59 -0800 Subject: [SCTP]: Implement ADD-IP special case processing for ABORT chunk ADD-IP spec has a special case for processing ABORTs: F4) ... One special consideration is that ABORT Chunks arriving destined to the IP address being deleted MUST be ignored (see Section 5.3.1 for further details). Check if the address we received on is in the DEL state, and if so, ignore the ABORT. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/bind_addr.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'net/sctp/bind_addr.c') diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c index 43266117478..13fbfb449a5 100644 --- a/net/sctp/bind_addr.c +++ b/net/sctp/bind_addr.c @@ -353,6 +353,32 @@ int sctp_bind_addr_match(struct sctp_bind_addr *bp, return match; } +/* Get the state of the entry in the bind_addr_list */ +int sctp_bind_addr_state(const struct sctp_bind_addr *bp, + const union sctp_addr *addr) +{ + struct sctp_sockaddr_entry *laddr; + struct sctp_af *af; + int state = -1; + + af = sctp_get_af_specific(addr->sa.sa_family); + if (unlikely(!af)) + return state; + + rcu_read_lock(); + list_for_each_entry_rcu(laddr, &bp->address_list, list) { + if (!laddr->valid) + continue; + if (af->cmp_addr(&laddr->a, addr)) { + state = laddr->state; + break; + } + } + rcu_read_unlock(); + + return state; +} + /* Find the first address in the bind address list that is not present in * the addrs packed array. */ -- cgit v1.2.3-70-g09d2