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| author | Vlad Yasevich <vladislav.yasevich@hp.com> | 2006-06-17 22:55:35 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-06-17 22:55:35 -0700 |
| commit | 5636bef7324f49e36f05ec8a5f6284e11b1bcca4 (patch) | |
| tree | b5e9e42560ba86ffbbd63a582df87844996b6d03 /net/sctp/protocol.c | |
| parent | 402d68c43326d2f0e7e2e9a9013cd4c098d9b87c (diff) | |
| download | lwn-5636bef7324f49e36f05ec8a5f6284e11b1bcca4.tar.gz lwn-5636bef7324f49e36f05ec8a5f6284e11b1bcca4.zip | |
[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.c | 8 |
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) * Return 0 - If the address is a non-unicast or an illegal address. * Return 1 - If the address is a unicast. */ -static int sctp_v4_addr_valid(union sctp_addr *addr, struct sctp_sock *sp) +static int sctp_v4_addr_valid(union sctp_addr *addr, + struct sctp_sock *sp, + const struct sk_buff *skb) { /* Is this a non-unicast address or a unusable SCTP address? */ if (IS_IPV4_UNUSABLE_ADDRESS(&addr->v4.sin_addr.s_addr)) return 0; + /* Is this a broadcast address? */ + if (skb && ((struct rtable *)skb->dst)->rt_flags & RTCF_BROADCAST) + return 0; + return 1; } |