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| author | Brian Haley <brian.haley@hp.com> | 2009-03-04 03:20:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-04 03:20:26 -0800 |
| commit | fb13d9f9e450bceafd88ac8a98f7a98e8096a5fe (patch) | |
| tree | 69b9341aeca187891f5a683c47150ffb0fce4d71 /net | |
| parent | fe7ca2e1e847b65c12d245cbf402af89da96888a (diff) | |
| download | lwn-fb13d9f9e450bceafd88ac8a98f7a98e8096a5fe.tar.gz lwn-fb13d9f9e450bceafd88ac8a98f7a98e8096a5fe.zip | |
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')
| -rw-r--r-- | net/sctp/protocol.c | 11 |
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"); |