diff options
| -rw-r--r-- | src/socket.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/socket.c b/src/socket.c index 9dd1683..aa17c1b 100644 --- a/src/socket.c +++ b/src/socket.c @@ -423,6 +423,7 @@ int socket_init(struct wireguard_device *wg) int ret = 0; #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) int old_bindv6only; + struct net *nobns; #endif mutex_lock(&wg->socket_update_lock); @@ -453,15 +454,20 @@ int socket_init(struct wireguard_device *wg) #if IS_ENABLED(CONFIG_IPV6) #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0) + nobns = &init_net; +#else + nobns = wg->creating_net; +#endif /* Since udp_port_cfg only learned of ipv6_v6only in 4.3, we do this horrible * hack here and set the sysctl variable temporarily to something that will * set the right option for us in sock_create. It's super racey! */ - old_bindv6only = wg->creating_net->ipv6.sysctl.bindv6only; - wg->creating_net->ipv6.sysctl.bindv6only = 1; + old_bindv6only = nobns->ipv6.sysctl.bindv6only; + nobns->ipv6.sysctl.bindv6only = 1; #endif ret = udp_sock_create(wg->creating_net, &port6, &new6); #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0) - wg->creating_net->ipv6.sysctl.bindv6only = old_bindv6only; + nobns->ipv6.sysctl.bindv6only = old_bindv6only; #endif if (ret < 0) { pr_err("Could not create IPv6 socket\n"); |