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authorVlad Yasevich <vladislav.yasevich@hp.com>2008-08-18 10:34:34 -0400
committerVlad Yasevich <vladislav.yasevich@hp.com>2008-10-01 11:33:06 -0400
commit52cae8f06babf9eed327479c1aa024ce3732f912 (patch)
tree2ef0dc1e4daf53735681ba7223d40058f1175092 /net/sctp/ipv6.c
parentc226ef9b83694311327f3ab0036c6de9c22e9daf (diff)
sctp: try harder to figure out address family when checking wildcards
sctp_is_any() function that is used to check for wildcard addresses only looks at the address itself to determine the address family. This function is used in the API to check the address passed in from the user. If the user simply zerroes out the sockaddr_storage and pass that in, we'll end up failing. So, let's try harder to determine the address family by also checking the socket if it's possible. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp/ipv6.c')
-rw-r--r--net/sctp/ipv6.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 47f91afa021..c78da3c9dd3 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -837,6 +837,7 @@ static int sctp_inet6_cmp_addr(const union sctp_addr *addr1,
struct sctp_sock *opt)
{
struct sctp_af *af1, *af2;
+ struct sock *sk = sctp_opt2sk(opt);
af1 = sctp_get_af_specific(addr1->sa.sa_family);
af2 = sctp_get_af_specific(addr2->sa.sa_family);
@@ -845,11 +846,11 @@ static int sctp_inet6_cmp_addr(const union sctp_addr *addr1,
return 0;
/* If the socket is IPv6 only, v4 addrs will not match */
- if (__ipv6_only_sock(sctp_opt2sk(opt)) && af1 != af2)
+ if (__ipv6_only_sock(sk) && af1 != af2)
return 0;
/* Today, wildcard AF_INET/AF_INET6. */
- if (sctp_is_any(addr1) || sctp_is_any(addr2))
+ if (sctp_is_any(sk, addr1) || sctp_is_any(sk, addr2))
return 1;
if (addr1->sa.sa_family != addr2->sa.sa_family)