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Diffstat (limited to 'net/sctp/bind_addr.c')
-rw-r--r--net/sctp/bind_addr.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index 432661174789..13fbfb449a55 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.
*/