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path: root/net/ipv6/ip6_udp_tunnel.c
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Diffstat (limited to 'net/ipv6/ip6_udp_tunnel.c')
-rw-r--r--net/ipv6/ip6_udp_tunnel.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/net/ipv6/ip6_udp_tunnel.c b/net/ipv6/ip6_udp_tunnel.c
index b283f293ee4a..ad1a9ccd4b44 100644
--- a/net/ipv6/ip6_udp_tunnel.c
+++ b/net/ipv6/ip6_udp_tunnel.c
@@ -15,7 +15,7 @@
int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
struct socket **sockp)
{
- struct sockaddr_in6 udp6_addr;
+ struct sockaddr_in6 udp6_addr = {};
int err;
struct socket *sock = NULL;
@@ -31,6 +31,22 @@ int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
if (err < 0)
goto error;
}
+ if (cfg->bind_ifindex) {
+ struct net_device *dev;
+
+ dev = dev_get_by_index(net, cfg->bind_ifindex);
+ if (!dev) {
+ err = -ENODEV;
+ goto error;
+ }
+
+ err = kernel_setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE,
+ dev->name, strlen(dev->name) + 1);
+ dev_put(dev);
+
+ if (err < 0)
+ goto error;
+ }
udp6_addr.sin6_family = AF_INET6;
memcpy(&udp6_addr.sin6_addr, &cfg->local_ip6,
@@ -42,6 +58,7 @@ int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
goto error;
if (cfg->peer_udp_port) {
+ memset(&udp6_addr, 0, sizeof(udp6_addr));
udp6_addr.sin6_family = AF_INET6;
memcpy(&udp6_addr.sin6_addr, &cfg->peer_ip6,
sizeof(udp6_addr.sin6_addr));