diff options
| author |   Vlad Yasevich <vladislav.yasevich@hp.com> | 2008-07-18 23:05:40 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-07-18 23:05:40 -0700 |
| commit | 7dab83de50c7b2b7ceac695a0b56fa6c0f95b0bc (patch) | |
| tree | 979c6905f2ef643acccfea9ab9ed926e764e72c8 /net/sctp/socket.c | |
| parent | sctp: Prevent uninitialized memory access (diff) | |
| download | linux-dev-7dab83de50c7b2b7ceac695a0b56fa6c0f95b0bc.tar.xz linux-dev-7dab83de50c7b2b7ceac695a0b56fa6c0f95b0bc.zip | |
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 '')
| -rw-r--r-- | net/sctp/socket.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 6aba01b0ce4e..a0e879bb202d 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; } |