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Diffstat (limited to 'net/socket.c')
-rw-r--r--net/socket.c80
1 files changed, 10 insertions, 70 deletions
diff --git a/net/socket.c b/net/socket.c
index 62c7729527ff..b7a562e655e9 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1426,8 +1426,8 @@ asmlinkage long sys_listen(int fd, int backlog)
1426 * clean when we restucture accept also. 1426 * clean when we restucture accept also.
1427 */ 1427 */
1428 1428
1429long do_accept(int fd, struct sockaddr __user *upeer_sockaddr, 1429asmlinkage long sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
1430 int __user *upeer_addrlen, int flags) 1430 int __user *upeer_addrlen, int flags)
1431{ 1431{
1432 struct socket *sock, *newsock; 1432 struct socket *sock, *newsock;
1433 struct file *newfile; 1433 struct file *newfile;
@@ -1510,66 +1510,10 @@ out_fd:
1510 goto out_put; 1510 goto out_put;
1511} 1511}
1512 1512
1513#if 0
1514#ifdef HAVE_SET_RESTORE_SIGMASK
1515asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
1516 int __user *upeer_addrlen,
1517 const sigset_t __user *sigmask,
1518 size_t sigsetsize, int flags)
1519{
1520 sigset_t ksigmask, sigsaved;
1521 int ret;
1522
1523 if (sigmask) {
1524 /* XXX: Don't preclude handling different sized sigset_t's. */
1525 if (sigsetsize != sizeof(sigset_t))
1526 return -EINVAL;
1527 if (copy_from_user(&ksigmask, sigmask, sizeof(ksigmask)))
1528 return -EFAULT;
1529
1530 sigdelsetmask(&ksigmask, sigmask(SIGKILL)|sigmask(SIGSTOP));
1531 sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved);
1532 }
1533
1534 ret = do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
1535
1536 if (ret < 0 && signal_pending(current)) {
1537 /*
1538 * Don't restore the signal mask yet. Let do_signal() deliver
1539 * the signal on the way back to userspace, before the signal
1540 * mask is restored.
1541 */
1542 if (sigmask) {
1543 memcpy(&current->saved_sigmask, &sigsaved,
1544 sizeof(sigsaved));
1545 set_restore_sigmask();
1546 }
1547 } else if (sigmask)
1548 sigprocmask(SIG_SETMASK, &sigsaved, NULL);
1549
1550 return ret;
1551}
1552#else
1553asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
1554 int __user *upeer_addrlen,
1555 const sigset_t __user *sigmask,
1556 size_t sigsetsize, int flags)
1557{
1558 /* The platform does not support restoring the signal mask in the
1559 * return path. So we do not allow using paccept() with a signal
1560 * mask. */
1561 if (sigmask)
1562 return -EINVAL;
1563
1564 return do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
1565}
1566#endif
1567#endif
1568
1569asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr, 1513asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
1570 int __user *upeer_addrlen) 1514 int __user *upeer_addrlen)
1571{ 1515{
1572 return do_accept(fd, upeer_sockaddr, upeer_addrlen, 0); 1516 return sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0);
1573} 1517}
1574 1518
1575/* 1519/*
@@ -2096,7 +2040,7 @@ static const unsigned char nargs[19]={
2096 AL(0),AL(3),AL(3),AL(3),AL(2),AL(3), 2040 AL(0),AL(3),AL(3),AL(3),AL(2),AL(3),
2097 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6), 2041 AL(3),AL(3),AL(4),AL(4),AL(4),AL(6),
2098 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3), 2042 AL(6),AL(2),AL(5),AL(5),AL(3),AL(3),
2099 AL(6) 2043 AL(4)
2100}; 2044};
2101 2045
2102#undef AL 2046#undef AL
@@ -2115,7 +2059,7 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
2115 unsigned long a0, a1; 2059 unsigned long a0, a1;
2116 int err; 2060 int err;
2117 2061
2118 if (call < 1 || call > SYS_PACCEPT) 2062 if (call < 1 || call > SYS_ACCEPT4)
2119 return -EINVAL; 2063 return -EINVAL;
2120 2064
2121 /* copy_from_user should be SMP safe. */ 2065 /* copy_from_user should be SMP safe. */
@@ -2143,9 +2087,8 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
2143 err = sys_listen(a0, a1); 2087 err = sys_listen(a0, a1);
2144 break; 2088 break;
2145 case SYS_ACCEPT: 2089 case SYS_ACCEPT:
2146 err = 2090 err = sys_accept4(a0, (struct sockaddr __user *)a1,
2147 do_accept(a0, (struct sockaddr __user *)a1, 2091 (int __user *)a[2], 0);
2148 (int __user *)a[2], 0);
2149 break; 2092 break;
2150 case SYS_GETSOCKNAME: 2093 case SYS_GETSOCKNAME:
2151 err = 2094 err =
@@ -2192,12 +2135,9 @@ asmlinkage long sys_socketcall(int call, unsigned long __user *args)
2192 case SYS_RECVMSG: 2135 case SYS_RECVMSG:
2193 err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]); 2136 err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]);
2194 break; 2137 break;
2195 case SYS_PACCEPT: 2138 case SYS_ACCEPT4:
2196 err = 2139 err = sys_accept4(a0, (struct sockaddr __user *)a1,
2197 sys_paccept(a0, (struct sockaddr __user *)a1, 2140 (int __user *)a[2], a[3]);
2198 (int __user *)a[2],
2199 (const sigset_t __user *) a[3],
2200 a[4], a[5]);
2201 break; 2141 break;
2202 default: 2142 default:
2203 err = -EINVAL; 2143 err = -EINVAL;