| Message ID | 1237323962-18635-3-git-send-email-vladislav.yasevich@hp.com |
|---|---|
| State | Superseded, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 07b9f3c..0adce8e 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -346,8 +346,11 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) goto out; } - if (addr_type != IPV6_ADDR_ANY) + if (addr_type != IPV6_ADDR_ANY) { sk->sk_userlocks |= SOCK_BINDADDR_LOCK; + if (addr_type != IPV6_ADDR_MAPPED) + np->ipv6only = 1; + } if (snum) sk->sk_userlocks |= SOCK_BINDPORT_LOCK; inet->sport = htons(inet->num);
The IPv4 wildcard (0.0.0.0) address does not intersect in any way with explicit IPv6 addresses. These two should be permitted, but the IPv4 conflict code checks the ipv6only bit as part of the test. Since binding to an explicit IPv6 address restricts the socket to only that IPv6 address, the side-effect is that the socket behaves as v6-only. By explicitely setting ipv6only in this case, allows the 2 binds to succeed. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> --- net/ipv6/af_inet6.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)