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Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c158
1 files changed, 45 insertions, 113 deletions
diff --git a/net/socket.c b/net/socket.c
index 57550c3bcab..35dd7371752 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -69,7 +69,6 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
-#include <linux/thread_info.h>
#include <linux/wanrouter.h>
#include <linux/if_bridge.h>
#include <linux/if_frad.h>
@@ -491,8 +490,8 @@ static struct socket *sock_alloc(void)
sock = SOCKET_I(inode);
inode->i_mode = S_IFSOCK | S_IRWXUGO;
- inode->i_uid = current->fsuid;
- inode->i_gid = current->fsgid;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = current_fsgid();
get_cpu_var(sockets_in_use)++;
put_cpu_var(sockets_in_use);
@@ -1215,7 +1214,7 @@ int sock_create_kern(int family, int type, int protocol, struct socket **res)
return __sock_create(&init_net, family, type, protocol, res, 1);
}
-asmlinkage long sys_socket(int family, int type, int protocol)
+SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol)
{
int retval;
struct socket *sock;
@@ -1256,8 +1255,8 @@ out_release:
* Create a pair of connected sockets.
*/
-asmlinkage long sys_socketpair(int family, int type, int protocol,
- int __user *usockvec)
+SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol,
+ int __user *, usockvec)
{
struct socket *sock1, *sock2;
int fd1, fd2, err;
@@ -1314,13 +1313,7 @@ asmlinkage long sys_socketpair(int family, int type, int protocol,
goto out_fd1;
}
- err = audit_fd_pair(fd1, fd2);
- if (err < 0) {
- fput(newfile1);
- fput(newfile2);
- goto out_fd;
- }
-
+ audit_fd_pair(fd1, fd2);
fd_install(fd1, newfile1);
fd_install(fd2, newfile2);
/* fd1 and fd2 may be already another descriptors.
@@ -1350,7 +1343,6 @@ out_fd2:
out_fd1:
put_filp(newfile2);
sock_release(sock2);
-out_fd:
put_unused_fd(fd1);
put_unused_fd(fd2);
goto out;
@@ -1364,7 +1356,7 @@ out_fd:
* the protocol layer (having also checked the address is ok).
*/
-asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen)
+SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)
{
struct socket *sock;
struct sockaddr_storage address;
@@ -1393,7 +1385,7 @@ asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen)
* ready for listening.
*/
-asmlinkage long sys_listen(int fd, int backlog)
+SYSCALL_DEFINE2(listen, int, fd, int, backlog)
{
struct socket *sock;
int err, fput_needed;
@@ -1426,8 +1418,8 @@ asmlinkage long sys_listen(int fd, int backlog)
* clean when we restucture accept also.
*/
-long do_accept(int fd, struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen, int flags)
+SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
+ int __user *, upeer_addrlen, int, flags)
{
struct socket *sock, *newsock;
struct file *newfile;
@@ -1510,66 +1502,10 @@ out_fd:
goto out_put;
}
-#if 0
-#ifdef HAVE_SET_RESTORE_SIGMASK
-asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen,
- const sigset_t __user *sigmask,
- size_t sigsetsize, int flags)
+SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr,
+ int __user *, upeer_addrlen)
{
- sigset_t ksigmask, sigsaved;
- int ret;
-
- if (sigmask) {
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
- if (copy_from_user(&ksigmask, sigmask, sizeof(ksigmask)))
- return -EFAULT;
-
- sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
- sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
- }
-
- ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
-
- if (ret < 0 && signal_pending(current)) {
- /*
- * Don't restore the signal mask yet. Let do_signal() deliver
- * the signal on the way back to userspace, before the signal
- * mask is restored.
- */
- if (sigmask) {
- memcpy(&current->saved_sigmask, &sigsaved,
- sizeof(sigsaved));
- set_restore_sigmask();
- }
- } else if (sigmask)
- sigprocmask(SIG_SETMASK, &sigsaved, NULL);
-
- return ret;
-}
-#else
-asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen,
- const sigset_t __user *sigmask,
- size_t sigsetsize, int flags)
-{
- /* The platform does not support restoring the signal mask in the
- * return path. So we do not allow using paccept() with a signal
- * mask. */
- if (sigmask)
- return -EINVAL;
-
- return do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
-}
-#endif
-#endif
-
-asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen)
-{
- return do_accept(fd, upeer_sockaddr, upeer_addrlen, 0);
+ return sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0);
}
/*
@@ -1584,8 +1520,8 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
* include the -EINPROGRESS status for such sockets.
*/
-asmlinkage long sys_connect(int fd, struct sockaddr __user *uservaddr,
- int addrlen)
+SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,
+ int, addrlen)
{
struct socket *sock;
struct sockaddr_storage address;
@@ -1616,8 +1552,8 @@ out:
* name to user space.
*/
-asmlinkage long sys_getsockname(int fd, struct sockaddr __user *usockaddr,
- int __user *usockaddr_len)
+SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr,
+ int __user *, usockaddr_len)
{
struct socket *sock;
struct sockaddr_storage address;
@@ -1647,8 +1583,8 @@ out:
* name to user space.
*/
-asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr,
- int __user *usockaddr_len)
+SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
+ int __user *, usockaddr_len)
{
struct socket *sock;
struct sockaddr_storage address;
@@ -1679,9 +1615,9 @@ asmlinkage long sys_getpeername(int fd, struct sockaddr __user *usockaddr,
* the protocol.
*/
-asmlinkage long sys_sendto(int fd, void __user *buff, size_t len,
- unsigned flags, struct sockaddr __user *addr,
- int addr_len)
+SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,
+ unsigned, flags, struct sockaddr __user *, addr,
+ int, addr_len)
{
struct socket *sock;
struct sockaddr_storage address;
@@ -1724,7 +1660,8 @@ out:
* Send a datagram down a socket.
*/
-asmlinkage long sys_send(int fd, void __user *buff, size_t len, unsigned flags)
+SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len,
+ unsigned, flags)
{
return sys_sendto(fd, buff, len, flags, NULL, 0);
}
@@ -1735,9 +1672,9 @@ asmlinkage long sys_send(int fd, void __user *buff, size_t len, unsigned flags)
* sender address from kernel to user space.
*/
-asmlinkage long sys_recvfrom(int fd, void __user *ubuf, size_t size,
- unsigned flags, struct sockaddr __user *addr,
- int __user *addr_len)
+SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
+ unsigned, flags, struct sockaddr __user *, addr,
+ int __user *, addr_len)
{
struct socket *sock;
struct iovec iov;
@@ -1789,8 +1726,8 @@ asmlinkage long sys_recv(int fd, void __user *ubuf, size_t size,
* to pass the user mode parameter for the protocols to sort out.
*/
-asmlinkage long sys_setsockopt(int fd, int level, int optname,
- char __user *optval, int optlen)
+SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,
+ char __user *, optval, int, optlen)
{
int err, fput_needed;
struct socket *sock;
@@ -1823,8 +1760,8 @@ out_put:
* to pass a user mode parameter for the protocols to sort out.
*/
-asmlinkage long sys_getsockopt(int fd, int level, int optname,
- char __user *optval, int __user *optlen)
+SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,
+ char __user *, optval, int __user *, optlen)
{
int err, fput_needed;
struct socket *sock;
@@ -1853,7 +1790,7 @@ out_put:
* Shutdown a socket.
*/
-asmlinkage long sys_shutdown(int fd, int how)
+SYSCALL_DEFINE2(shutdown, int, fd, int, how)
{
int err, fput_needed;
struct socket *sock;
@@ -1879,7 +1816,7 @@ asmlinkage long sys_shutdown(int fd, int how)
* BSD sendmsg interface
*/
-asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags)
+SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned, flags)
{
struct compat_msghdr __user *msg_compat =
(struct compat_msghdr __user *)msg;
@@ -1985,8 +1922,8 @@ out:
* BSD recvmsg interface
*/
-asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg,
- unsigned int flags)
+SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg,
+ unsigned int, flags)
{
struct compat_msghdr __user *msg_compat =
(struct compat_msghdr __user *)msg;
@@ -2096,7 +2033,7 @@ static const unsigned char nargs[19]={
AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
- AL(6)
+ AL(4)
};
#undef AL
@@ -2109,22 +2046,20 @@ static const unsigned char nargs[19]={
* it is set by the callees.
*/
-asmlinkage long sys_socketcall(int call, unsigned long __user *args)
+SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args)
{
unsigned long a[6];
unsigned long a0, a1;
int err;
- if (call < 1 || call > SYS_PACCEPT)
+ if (call < 1 || call > SYS_ACCEPT4)
return -EINVAL;
/* copy_from_user should be SMP safe. */
if (copy_from_user(a, args, nargs[call]))
return -EFAULT;
- err = audit_socketcall(nargs[call] / sizeof(unsigned long), a);
- if (err)
- return err;
+ audit_socketcall(nargs[call] / sizeof(unsigned long), a);
a0 = a[0];
a1 = a[1];
@@ -2143,9 +2078,8 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
err = sys_listen(a0, a1);
break;
case SYS_ACCEPT:
- err =
- do_accept(a0, (struct sockaddr __user *)a1,
- (int __user *)a[2], 0);
+ err = sys_accept4(a0, (struct sockaddr __user *)a1,
+ (int __user *)a[2], 0);
break;
case SYS_GETSOCKNAME:
err =
@@ -2192,12 +2126,9 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
case SYS_RECVMSG:
err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]);
break;
- case SYS_PACCEPT:
- err =
- sys_paccept(a0, (struct sockaddr __user *)a1,
- (int __user *)a[2],
- (const sigset_t __user *) a[3],
- a[4], a[5]);
+ case SYS_ACCEPT4:
+ err = sys_accept4(a0, (struct sockaddr __user *)a1,
+ (int __user *)a[2], a[3]);
break;
default:
err = -EINVAL;
@@ -2367,6 +2298,7 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
}
(*newsock)->ops = sock->ops;
+ __module_get((*newsock)->ops->owner);
done:
return err;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-29 16:37:05 +0000