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authorVlad Yasevich <vladislav.yasevich@hp.com>2008-07-18 23:05:40 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-18 23:05:40 -0700
commit7dab83de50c7b2b7ceac695a0b56fa6c0f95b0bc (patch)
tree979c6905f2ef643acccfea9ab9ed926e764e72c8 /net/sctp/socket.c
parent6d0ccbac688207ca0616ab5094932af4db4747b3 (diff)
sctp: Support ipv6only AF_INET6 sockets.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/socket.c')
-rw-r--r--net/sctp/socket.c30
1 files changed, 25 insertions, 5 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 6aba01b0ce4..a0e879bb202 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -308,9 +308,16 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
if (len < sizeof (struct sockaddr))
return NULL;
- /* Does this PF support this AF? */
- if (!opt->pf->af_supported(addr->sa.sa_family, opt))
- return NULL;
+ /* V4 mapped address are really of AF_INET family */
+ if (addr->sa.sa_family == AF_INET6 &&
+ ipv6_addr_v4mapped(&addr->v6.sin6_addr)) {
+ if (!opt->pf->af_supported(AF_INET, opt))
+ return NULL;
+ } else {
+ /* Does this PF support this AF? */
+ if (!opt->pf->af_supported(addr->sa.sa_family, opt))
+ return NULL;
+ }
/* If we get this far, af is valid. */
af = sctp_get_af_specific(addr->sa.sa_family);
@@ -4395,6 +4402,11 @@ static int sctp_getsockopt_local_addrs_num_old(struct sock *sk, int len,
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
+
cnt++;
}
rcu_read_unlock();
@@ -4435,6 +4447,10 @@ static int sctp_copy_laddrs_old(struct sock *sk, __u16 port,
if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
memcpy(&temp, &addr->a, sizeof(temp));
if (!temp.v4.sin_port)
temp.v4.sin_port = htons(port);
@@ -4470,6 +4486,10 @@ static int sctp_copy_laddrs(struct sock *sk, __u16 port, void *to,
if ((PF_INET == sk->sk_family) &&
(AF_INET6 == addr->a.sa.sa_family))
continue;
+ if ((PF_INET6 == sk->sk_family) &&
+ inet_v6_ipv6only(sk) &&
+ (AF_INET == addr->a.sa.sa_family))
+ continue;
memcpy(&temp, &addr->a, sizeof(temp));
if (!temp.v4.sin_port)
temp.v4.sin_port = htons(port);
@@ -5568,8 +5588,8 @@ pp_found:
sk2->sk_state != SCTP_SS_LISTENING)
continue;
- if (sctp_bind_addr_match(&ep2->base.bind_addr, addr,
- sctp_sk(sk))) {
+ if (sctp_bind_addr_conflict(&ep2->base.bind_addr, addr,
+ sctp_sk(sk2), sctp_sk(sk))) {
ret = (long)sk2;
goto fail_unlock;
}