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Diffstat (limited to 'net/unix/af_unix.c')
-rw-r--r--net/unix/af_unix.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b8788fd5e3c..e18cd3628db 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -252,7 +252,7 @@ static struct sock *__unix_find_socket_byname(struct net *net,
sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
struct unix_sock *u = unix_sk(s);
- if (s->sk_net != net)
+ if (!net_eq(sock_net(s), net))
continue;
if (u->addr->len == len &&
@@ -289,7 +289,7 @@ static struct sock *unix_find_socket_byinode(struct net *net, struct inode *i)
&unix_socket_table[i->i_ino & (UNIX_HASH_SIZE - 1)]) {
struct dentry *dentry = unix_sk(s)->dentry;
- if (s->sk_net != net)
+ if (!net_eq(sock_net(s), net))
continue;
if(dentry && dentry->d_inode == i)
@@ -654,7 +654,7 @@ static int unix_release(struct socket *sock)
static int unix_autobind(struct socket *sock)
{
struct sock *sk = sock->sk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
static u32 ordernum = 1;
struct unix_address * addr;
@@ -758,7 +758,7 @@ fail:
static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
{
struct sock *sk = sock->sk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr=(struct sockaddr_un *)uaddr;
struct dentry * dentry = NULL;
@@ -819,7 +819,11 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
*/
mode = S_IFSOCK |
(SOCK_INODE(sock)->i_mode & ~current->fs->umask);
+ err = mnt_want_write(nd.path.mnt);
+ if (err)
+ goto out_mknod_dput;
err = vfs_mknod(nd.path.dentry->d_inode, dentry, mode, 0);
+ mnt_drop_write(nd.path.mnt);
if (err)
goto out_mknod_dput;
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
@@ -899,7 +903,7 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
int alen, int flags)
{
struct sock *sk = sock->sk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
struct sockaddr_un *sunaddr=(struct sockaddr_un*)addr;
struct sock *other;
unsigned hash;
@@ -996,7 +1000,7 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
{
struct sockaddr_un *sunaddr=(struct sockaddr_un *)uaddr;
struct sock *sk = sock->sk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk), *newu, *otheru;
struct sock *newsk = NULL;
struct sock *other = NULL;
@@ -1025,7 +1029,7 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
err = -ENOMEM;
/* create new sock for complete connection */
- newsk = unix_create1(sk->sk_net, NULL);
+ newsk = unix_create1(sock_net(sk), NULL);
if (newsk == NULL)
goto out;
@@ -1312,7 +1316,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
{
struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct sock *sk = sock->sk;
- struct net *net = sk->sk_net;
+ struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
struct sockaddr_un *sunaddr=msg->msg_name;
struct sock *other = NULL;
@@ -2016,13 +2020,14 @@ struct unix_iter_state {
struct seq_net_private p;
int i;
};
-static struct sock *unix_seq_idx(struct unix_iter_state *iter, loff_t pos)
+static struct sock *unix_seq_idx(struct seq_file *seq, loff_t pos)
{
+ struct unix_iter_state *iter = seq->private;
loff_t off = 0;
struct sock *s;
for (s = first_unix_socket(&iter->i); s; s = next_unix_socket(&iter->i, s)) {
- if (s->sk_net != iter->p.net)
+ if (sock_net(s) != seq_file_net(seq))
continue;
if (off == pos)
return s;
@@ -2035,9 +2040,8 @@ static struct sock *unix_seq_idx(struct unix_iter_state *iter, loff_t pos)
static void *unix_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(unix_table_lock)
{
- struct unix_iter_state *iter = seq->private;
spin_lock(&unix_table_lock);
- return *pos ? unix_seq_idx(iter, *pos - 1) : ((void *) 1);
+ return *pos ? unix_seq_idx(seq, *pos - 1) : SEQ_START_TOKEN;
}
static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
@@ -2046,11 +2050,11 @@ static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
struct sock *sk = v;
++*pos;
- if (v == (void *)1)
+ if (v == SEQ_START_TOKEN)
sk = first_unix_socket(&iter->i);
else
sk = next_unix_socket(&iter->i, sk);
- while (sk && (sk->sk_net != iter->p.net))
+ while (sk && (sock_net(sk) != seq_file_net(seq)))
sk = next_unix_socket(&iter->i, sk);
return sk;
}
@@ -2064,7 +2068,7 @@ static void unix_seq_stop(struct seq_file *seq, void *v)
static int unix_seq_show(struct seq_file *seq, void *v)
{
- if (v == (void *)1)
+ if (v == SEQ_START_TOKEN)
seq_puts(seq, "Num RefCount Protocol Flags Type St "
"Inode Path\n");
else {
@@ -2176,7 +2180,7 @@ static int __init af_unix_init(void)
rc = proto_register(&unix_proto, 1);
if (rc != 0) {
printk(KERN_CRIT "%s: Cannot create unix_sock SLAB cache!\n",
- __FUNCTION__);
+ __func__);
goto out;
}
@@ -2193,7 +2197,11 @@ static void __exit af_unix_exit(void)
unregister_pernet_subsys(&unix_net_ops);
}
-module_init(af_unix_init);
+/* Earlier than device_initcall() so that other drivers invoking
+ request_module() don't end up in a loop when modprobe tries
+ to use a UNIX socket. But later than subsys_initcall() because
+ we depend on stuff initialised there */
+fs_initcall(af_unix_init);
module_exit(af_unix_exit);
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-29 22:55:53 +0000