This patch makes sctp support ipv6 nonlocal bind by adding
sp->inet.freebind and net->ipv6.sysctl.ip_nonlocal_bind
check in sctp_v6_available as what sctp did to support
ipv4 nonlocal bind (commit cdac4e077489).
Reported-by: Shijoe George <spanjikk@xxxxxxxxxx>
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
---
net/sctp/ipv6.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index ae6f1a2..660c4a4 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -560,6 +560,7 @@ static int sctp_v6_is_any(const union sctp_addr *addr)
static int sctp_v6_available(union sctp_addr *addr, struct sctp_sock *sp)
{
int type;
+ struct net *net = sock_net(&sp->inet.sk);
const struct in6_addr *in6 = (const struct in6_addr *)&addr->v6.sin6_addr;
type = ipv6_addr_type(in6);
@@ -574,7 +575,8 @@ static int sctp_v6_available(union sctp_addr *addr, struct sctp_sock *sp)
if (!(type & IPV6_ADDR_UNICAST))
return 0;
- return ipv6_chk_addr(sock_net(&sp->inet.sk), in6, NULL, 0);
+ return sp->inet.freebind || net->ipv6.sysctl.ip_nonlocal_bind ||
+ ipv6_chk_addr(net, in6, NULL, 0);
}
/* This function checks if the address is a valid address to be used for
--
2.1.0
--
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