nfsd: nfsd should drop CAP_MKNOD for non-root

[safe/jmp/linux-2.6] / net / x25 / af_x25.c

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 479927c..9fc5b02 100644 (file)
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -83,9 +83,9 @@ struct compat_x25_subscrip_struct {
 int x25_addr_ntoa(unsigned char *p, struct x25_address *called_addr,
                  struct x25_address *calling_addr)
 {
-       int called_len, calling_len;
+       unsigned int called_len, calling_len;
        char *called, *calling;
-       int i;
+       unsigned int i;
 
        called_len  = (*p >> 0) & 0x0F;
        calling_len = (*p >> 4) & 0x0F;
@@ -191,6 +191,9 @@ static int x25_device_event(struct notifier_block *this, unsigned long event,
        struct net_device *dev = ptr;
        struct x25_neigh *nb;
 
+       if (!net_eq(dev_net(dev), &init_net))
+               return NOTIFY_DONE;
+
        if (dev->type == ARPHRD_X25
 #if defined(CONFIG_LLC) || defined(CONFIG_LLC_MODULE)
         || dev->type == ARPHRD_ETHER
@@ -466,10 +469,10 @@ static struct proto x25_proto = {
        .obj_size = sizeof(struct x25_sock),
 };
 
-static struct sock *x25_alloc_socket(void)
+static struct sock *x25_alloc_socket(struct net *net)
 {
        struct x25_sock *x25;
-       struct sock *sk = sk_alloc(AF_X25, GFP_ATOMIC, &x25_proto, 1);
+       struct sock *sk = sk_alloc(net, AF_X25, GFP_ATOMIC, &x25_proto);
 
        if (!sk)
                goto out;
@@ -485,17 +488,20 @@ out:
        return sk;
 }
 
-static int x25_create(struct socket *sock, int protocol)
+static int x25_create(struct net *net, struct socket *sock, int protocol)
 {
        struct sock *sk;
        struct x25_sock *x25;
        int rc = -ESOCKTNOSUPPORT;
 
+       if (net != &init_net)
+               return -EAFNOSUPPORT;
+
        if (sock->type != SOCK_SEQPACKET || protocol)
                goto out;
 
        rc = -ENOMEM;
-       if ((sk = x25_alloc_socket()) == NULL)
+       if ((sk = x25_alloc_socket(net)) == NULL)
                goto out;
 
        x25 = x25_sk(sk);
@@ -543,19 +549,17 @@ static struct sock *x25_make_new(struct sock *osk)
        if (osk->sk_type != SOCK_SEQPACKET)
                goto out;
 
-       if ((sk = x25_alloc_socket()) == NULL)
+       if ((sk = x25_alloc_socket(sock_net(osk))) == NULL)
                goto out;
 
        x25 = x25_sk(sk);
 
        sk->sk_type        = osk->sk_type;
-       sk->sk_socket      = osk->sk_socket;
        sk->sk_priority    = osk->sk_priority;
        sk->sk_protocol    = osk->sk_protocol;
        sk->sk_rcvbuf      = osk->sk_rcvbuf;
        sk->sk_sndbuf      = osk->sk_sndbuf;
        sk->sk_state       = TCP_ESTABLISHED;
-       sk->sk_sleep       = osk->sk_sleep;
        sk->sk_backlog_rcv = osk->sk_backlog_rcv;
        sock_copy_flags(sk, osk);
 
@@ -608,8 +612,7 @@ static int x25_release(struct socket *sock)
                        break;
        }
 
-       sock->sk        = NULL;
-       sk->sk_socket   = NULL; /* Not used, but we should do this */
+       sock_orphan(sk);
 out:
        return 0;
 }
@@ -802,14 +805,12 @@ static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
        if (!skb->sk)
                goto out2;
        newsk            = skb->sk;
-       newsk->sk_socket = newsock;
-       newsk->sk_sleep  = &newsock->wait;
+       sock_graft(newsk, newsock);
 
        /* Now attach up the new socket */
        skb->sk = NULL;
        kfree_skb(skb);
        sk->sk_ack_backlog--;
-       newsock->sk    = newsk;
        newsock->state = SS_CONNECTED;
        rc = 0;
 out2:
@@ -1646,7 +1647,7 @@ static int __init x25_init(void)
 
        register_netdevice_notifier(&x25_dev_notifier);
 
-       printk(KERN_INFO "X.25 for Linux. Version 0.2 for Linux 2.1.15\n");
+       printk(KERN_INFO "X.25 for Linux Version 0.2\n");
 
 #ifdef CONFIG_SYSCTL
        x25_register_sysctl();