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authorBrian Haley <brian.haley@hp.com>2009-03-04 03:20:26 -0800
committerDavid S. Miller <davem@davemloft.net>2009-03-04 03:20:26 -0800
commitfb13d9f9e450bceafd88ac8a98f7a98e8096a5fe (patch)
tree69b9341aeca187891f5a683c47150ffb0fce4d71 /net/sctp
parentfe7ca2e1e847b65c12d245cbf402af89da96888a (diff)
downloadlinux-fb13d9f9e450bceafd88ac8a98f7a98e8096a5fe.tar.bz2
SCTP: change sctp_ctl_sock_init() to try IPv4 if IPv6 fails
Change sctp_ctl_sock_init() to try IPv4 if IPv6 socket registration fails. Required if the IPv6 module is loaded with "disable=1", else SCTP will fail to load. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/protocol.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 4e6638449639..c4986d0f7419 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -717,15 +717,20 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev,
static int sctp_ctl_sock_init(void)
{
int err;
- sa_family_t family;
+ sa_family_t family = PF_INET;
if (sctp_get_pf_specific(PF_INET6))
family = PF_INET6;
- else
- family = PF_INET;
err = inet_ctl_sock_create(&sctp_ctl_sock, family,
SOCK_SEQPACKET, IPPROTO_SCTP, &init_net);
+
+ /* If IPv6 socket could not be created, try the IPv4 socket */
+ if (err < 0 && family == PF_INET6)
+ err = inet_ctl_sock_create(&sctp_ctl_sock, AF_INET,
+ SOCK_SEQPACKET, IPPROTO_SCTP,
+ &init_net);
+
if (err < 0) {
printk(KERN_ERR
"SCTP: Failed to create the SCTP control socket.\n");