[NET]: Make device event notification network namespace safe

[net-next-2.6.git] / net / econet / af_econet.c

diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index f2ce4143429018b33b9da9093d2dd913439152f2..f877f3b5c72529d635c277f3f04055545fbb0690 100644 (file)
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -13,7 +13,6 @@
 
 #include <linux/types.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/socket.h>
@@ -163,7 +162,7 @@ static int econet_recvmsg(struct kiocb *iocb, struct socket *sock,
        err = memcpy_toiovec(msg->msg_iov, skb->data, copied);
        if (err)
                goto out_free;
-       skb_get_timestamp(skb, &sk->sk_stamp);
+       sk->sk_stamp = skb->tstamp;
 
        if (msg->msg_name)
                memcpy(msg->msg_name, skb->cb, msg->msg_namelen);
@@ -346,7 +345,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
                        goto out_unlock;
 
                skb_reserve(skb, LL_RESERVED_SPACE(dev));
-               skb->nh.raw = skb->data;
+               skb_reset_network_header(skb);
 
                eb = (struct ec_cb *)&skb->cb;
 
@@ -367,7 +366,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
                        fh->cb = cb;
                        fh->port = port;
                        if (sock->type != SOCK_DGRAM) {
-                               skb->tail = skb->data;
+                               skb_reset_tail_pointer(skb);
                                skb->len = 0;
                        } else if (res < 0)
                                goto out_free;
@@ -609,12 +608,15 @@ static struct proto econet_proto = {
  *     Create an Econet socket
  */
 
-static int econet_create(struct socket *sock, int protocol)
+static int econet_create(struct net *net, struct socket *sock, int protocol)
 {
        struct sock *sk;
        struct econet_sock *eo;
        int err;
 
+       if (net != &init_net)
+               return -EAFNOSUPPORT;
+
        /* Econet only provides datagram services. */
        if (sock->type != SOCK_DGRAM)
                return -ESOCKTNOSUPPORT;
@@ -622,7 +624,7 @@ static int econet_create(struct socket *sock, int protocol)
        sock->state = SS_UNCONNECTED;
 
        err = -ENOBUFS;
-       sk = sk_alloc(PF_ECONET, GFP_KERNEL, &econet_proto, 1);
+       sk = sk_alloc(net, PF_ECONET, GFP_KERNEL, &econet_proto, 1);
        if (sk == NULL)
                goto out;
 
@@ -728,6 +730,9 @@ static int econet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg
                case SIOCGSTAMP:
                        return sock_get_timestamp(sk, argp);
 
+               case SIOCGSTAMPNS:
+                       return sock_get_timestampns(sk, argp);
+
                case SIOCSIFADDR:
                case SIOCGIFADDR:
                        return ec_dev_ioctl(sock, cmd, argp);
@@ -846,7 +851,7 @@ static void aun_send_response(__u32 addr, unsigned long seq, int code, int cb)
 
 static void aun_incoming(struct sk_buff *skb, struct aunhdr *ah, size_t len)
 {
-       struct iphdr *ip = skb->nh.iph;
+       struct iphdr *ip = ip_hdr(skb);
        unsigned char stn = ntohl(ip->saddr) & 0xff;
        struct sock *sk;
        struct sk_buff *newskb;
@@ -941,10 +946,10 @@ static void aun_data_available(struct sock *sk, int slen)
                printk(KERN_DEBUG "AUN: recvfrom() error %d\n", -err);
        }
 
-       data = skb->h.raw + sizeof(struct udphdr);
+       data = skb_transport_header(skb) + sizeof(struct udphdr);
        ah = (struct aunhdr *)data;
        len = skb->len - sizeof(struct udphdr);
-       ip = skb->nh.iph;
+       ip = ip_hdr(skb);
 
        switch (ah->code)
        {
@@ -1060,6 +1065,9 @@ static int econet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
        struct sock *sk;
        struct ec_device *edev = dev->ec_ptr;
 
+       if (dev->nd_net != &init_net)
+               goto drop;
+
        if (skb->pkt_type == PACKET_OTHERHOST)
                goto drop;
 
@@ -1114,6 +1122,9 @@ static int econet_notifier(struct notifier_block *this, unsigned long msg, void
        struct net_device *dev = (struct net_device *)data;
        struct ec_device *edev;
 
+       if (dev->nd_net != &init_net)
+               return NOTIFY_DONE;
+
        switch (msg) {
        case NETDEV_UNREGISTER:
                /* A device has gone down - kill any data we hold for it. */
@@ -1144,6 +1155,9 @@ static void __exit econet_proto_exit(void)
                sock_release(udpsock);
 #endif
        unregister_netdevice_notifier(&econet_netdev_notifier);
+#ifdef CONFIG_ECONET_NATIVE
+       dev_remove_pack(&econet_packet_type);
+#endif
        sock_unregister(econet_family_ops.family);
        proto_unregister(&econet_proto);
 }