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authorVlad Yasevich <vladislav.yasevich@hp.com>2006-06-18 01:55:35 -0400
committerDavid S. Miller <davem@davemloft.net>2006-06-18 01:55:35 -0400
commit5636bef7324f49e36f05ec8a5f6284e11b1bcca4 (patch)
treeb5e9e42560ba86ffbbd63a582df87844996b6d03 /net/sctp/protocol.c
parent402d68c43326d2f0e7e2e9a9013cd4c098d9b87c (diff)
[SCTP]: Reject sctp packets with broadcast addresses.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/protocol.c')
-rw-r--r--net/sctp/protocol.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 2088aa992b7a..816c033d7886 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -365,12 +365,18 @@ static int sctp_v4_is_any(const union sctp_addr *addr)
365 * Return 0 - If the address is a non-unicast or an illegal address. 365 * Return 0 - If the address is a non-unicast or an illegal address.
366 * Return 1 - If the address is a unicast. 366 * Return 1 - If the address is a unicast.
367 */ 367 */
368static int sctp_v4_addr_valid(union sctp_addr *addr, struct sctp_sock *sp) 368static int sctp_v4_addr_valid(union sctp_addr *addr,
369 struct sctp_sock *sp,
370 const struct sk_buff *skb)
369{ 371{
370 /* Is this a non-unicast address or a unusable SCTP address? */ 372 /* Is this a non-unicast address or a unusable SCTP address? */
371 if (IS_IPV4_UNUSABLE_ADDRESS(&addr->v4.sin_addr.s_addr)) 373 if (IS_IPV4_UNUSABLE_ADDRESS(&addr->v4.sin_addr.s_addr))
372 return 0; 374 return 0;
373 375
376 /* Is this a broadcast address? */
377 if (skb && ((struct rtable *)skb->dst)->rt_flags & RTCF_BROADCAST)
378 return 0;
379
374 return 1; 380 return 1;
375} 381}
376 382