[NET]: Make packet reception network namespace safe

[linux-2.6-omap-h63xx.git] / net / ax25 / af_ax25.c

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index dae2a42d3d865a96af92329cedf0b11a186da755..def6c42ad165bfde1b82e652d173cb341031e96a 100644 (file)
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -44,6 +44,7 @@
 #include <linux/sysctl.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
+#include <net/net_namespace.h>
 #include <net/tcp_states.h>
 #include <net/ip.h>
 #include <net/arp.h>
@@ -779,11 +780,14 @@ static struct proto ax25_proto = {
        .obj_size = sizeof(struct sock),
 };
 
-static int ax25_create(struct socket *sock, int protocol)
+static int ax25_create(struct net *net, struct socket *sock, int protocol)
 {
        struct sock *sk;
        ax25_cb *ax25;
 
+       if (net != &init_net)
+               return -EAFNOSUPPORT;
+
        switch (sock->type) {
        case SOCK_DGRAM:
                if (protocol == 0 || protocol == PF_AX25)
@@ -829,7 +833,7 @@ static int ax25_create(struct socket *sock, int protocol)
                return -ESOCKTNOSUPPORT;
        }
 
-       if ((sk = sk_alloc(PF_AX25, GFP_ATOMIC, &ax25_proto, 1)) == NULL)
+       if ((sk = sk_alloc(net, PF_AX25, GFP_ATOMIC, &ax25_proto, 1)) == NULL)
                return -ENOMEM;
 
        ax25 = sk->sk_protinfo = ax25_create_cb();
@@ -854,7 +858,7 @@ struct sock *ax25_make_new(struct sock *osk, struct ax25_dev *ax25_dev)
        struct sock *sk;
        ax25_cb *ax25, *oax25;
 
-       if ((sk = sk_alloc(PF_AX25, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
+       if ((sk = sk_alloc(osk->sk_net, PF_AX25, GFP_ATOMIC, osk->sk_prot, 1)) == NULL)
                return NULL;
 
        if ((ax25 = ax25_create_cb()) == NULL) {
@@ -1998,9 +2002,9 @@ static int __init ax25_init(void)
        register_netdevice_notifier(&ax25_dev_notifier);
        ax25_register_sysctl();
 
-       proc_net_fops_create("ax25_route", S_IRUGO, &ax25_route_fops);
-       proc_net_fops_create("ax25", S_IRUGO, &ax25_info_fops);
-       proc_net_fops_create("ax25_calls", S_IRUGO, &ax25_uid_fops);
+       proc_net_fops_create(&init_net, "ax25_route", S_IRUGO, &ax25_route_fops);
+       proc_net_fops_create(&init_net, "ax25", S_IRUGO, &ax25_info_fops);
+       proc_net_fops_create(&init_net, "ax25_calls", S_IRUGO, &ax25_uid_fops);
 out:
        return rc;
 }
@@ -2014,9 +2018,9 @@ MODULE_ALIAS_NETPROTO(PF_AX25);
 
 static void __exit ax25_exit(void)
 {
-       proc_net_remove("ax25_route");
-       proc_net_remove("ax25");
-       proc_net_remove("ax25_calls");
+       proc_net_remove(&init_net, "ax25_route");
+       proc_net_remove(&init_net, "ax25");
+       proc_net_remove(&init_net, "ax25_calls");
        ax25_rt_free();
        ax25_uid_free();
        ax25_dev_free();