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authorKuniyuki Iwashima <kuniyu@amazon.co.jp>2021-11-24 05:14:20 +0300
committerJakub Kicinski <kuba@kernel.org>2021-11-27 05:01:53 +0300
commitf7ed31f4615f4e1d97c0e4325c5b8a240e10073c (patch)
tree5eebee0a94017c2a9aa80b99592ad5d892585e94 /net/unix
parent755662ce78d14c1a9118df921c528b1f992ded2e (diff)
downloadlinux-f7ed31f4615f4e1d97c0e4325c5b8a240e10073c.tar.xz
af_unix: Pass struct sock to unix_autobind().
We do not use struct socket in unix_autobind() and pass struct sock to unix_bind_bsd() and unix_bind_abstract(). Let's pass it to unix_autobind() as well. Also, this patch fixes these errors by checkpatch.pl. ERROR: do not use assignment in if condition #1795: FILE: net/unix/af_unix.c:1795: + if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr CHECK: Logical continuations should be on the previous line #1796: FILE: net/unix/af_unix.c:1796: + if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr + && (err = unix_autobind(sock)) != 0) Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/unix')
-rw-r--r--net/unix/af_unix.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 31c085e3c1fa..0fef54aed84e 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -950,15 +950,13 @@ static int unix_release(struct socket *sock)
return 0;
}
-static int unix_autobind(struct socket *sock)
+static int unix_autobind(struct sock *sk)
{
- struct sock *sk = sock->sk;
- struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
- static u32 ordernum = 1;
struct unix_address *addr;
- int err;
unsigned int retries = 0;
+ static u32 ordernum = 1;
+ int err;
err = mutex_lock_interruptible(&u->bindlock);
if (err)
@@ -985,7 +983,8 @@ retry:
spin_lock(&unix_table_lock);
ordernum = (ordernum+1)&0xFFFFF;
- if (__unix_find_socket_byname(net, addr->name, addr->len, addr->hash)) {
+ if (__unix_find_socket_byname(sock_net(sk), addr->name, addr->len,
+ addr->hash)) {
spin_unlock(&unix_table_lock);
/*
* __unix_find_socket_byname() may take long time if many names
@@ -1161,7 +1160,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
return -EINVAL;
if (addr_len == offsetof(struct sockaddr_un, sun_path))
- return unix_autobind(sock);
+ return unix_autobind(sk);
err = unix_mkname(sunaddr, addr_len, &hash);
if (err < 0)
@@ -1231,8 +1230,11 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
alen = err;
if (test_bit(SOCK_PASSCRED, &sock->flags) &&
- !unix_sk(sk)->addr && (err = unix_autobind(sock)) != 0)
- goto out;
+ !unix_sk(sk)->addr) {
+ err = unix_autobind(sk);
+ if (err)
+ goto out;
+ }
restart:
other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
@@ -1337,9 +1339,11 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
goto out;
addr_len = err;
- if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr &&
- (err = unix_autobind(sock)) != 0)
- goto out;
+ if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr) {
+ err = unix_autobind(sk);
+ if (err)
+ goto out;
+ }
timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
@@ -1791,9 +1795,11 @@ static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,
goto out;
}
- if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr
- && (err = unix_autobind(sock)) != 0)
- goto out;
+ if (test_bit(SOCK_PASSCRED, &sock->flags) && !u->addr) {
+ err = unix_autobind(sk);
+ if (err)
+ goto out;
+ }
err = -EMSGSIZE;
if (len > sk->sk_sndbuf - 32)