131 static int sock_fasync(int fd, struct file *filp, int on);
489 	int fd = get_unused_fd_flags(flags);  in sock_map_fd()  local
490 	if (unlikely(fd < 0)) {  in sock_map_fd()
492 		return fd;  in sock_map_fd()
497 		fd_install(fd, newfile);  in sock_map_fd()
498 		return fd;  in sock_map_fd()
501 	put_unused_fd(fd);  in sock_map_fd()
534 struct socket *sockfd_lookup(int fd, int *err)  in sockfd_lookup()  argument
539 	file = fget(fd);  in sockfd_lookup()
554 static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)  in sockfd_lookup_light()  argument
556 	struct fd f = fdget(fd);  in sockfd_lookup_light()
1437 static int sock_fasync(int fd, struct file *filp, int on)  in sock_fasync()  argument
1447 	fasync_helper(fd, filp, on, &wq->fasync_list);  in sock_fasync()
1840 int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen)  in __sys_bind()  argument
1846 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_bind()
1863 SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen)  in SYSCALL_DEFINE3()  argument
1865 	return __sys_bind(fd, umyaddr, addrlen);  in SYSCALL_DEFINE3()
1874 int __sys_listen(int fd, int backlog)  in __sys_listen()  argument
1880 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_listen()
1895 SYSCALL_DEFINE2(listen, int, fd, int, backlog)  in SYSCALL_DEFINE2()  argument
1897 	return __sys_listen(fd, backlog);  in SYSCALL_DEFINE2()
1998 int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,  in __sys_accept4()  argument
2002 	struct fd f;  in __sys_accept4()
2004 	f = fdget(fd);  in __sys_accept4()
2014 SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,  in SYSCALL_DEFINE4()  argument
2017 	return __sys_accept4(fd, upeer_sockaddr, upeer_addrlen, flags);  in SYSCALL_DEFINE4()
2020 SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr,  in SYSCALL_DEFINE3()  argument
2023 	return __sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0);  in SYSCALL_DEFINE3()
2061 int __sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen)  in __sys_connect()  argument
2064 	struct fd f;  in __sys_connect()
2066 	f = fdget(fd);  in __sys_connect()
2079 SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr,  in SYSCALL_DEFINE3()  argument
2082 	return __sys_connect(fd, uservaddr, addrlen);  in SYSCALL_DEFINE3()
2090 int __sys_getsockname(int fd, struct sockaddr __user *usockaddr,  in __sys_getsockname()  argument
2097 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_getsockname()
2117 SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr,  in SYSCALL_DEFINE3()  argument
2120 	return __sys_getsockname(fd, usockaddr, usockaddr_len);  in SYSCALL_DEFINE3()
2128 int __sys_getpeername(int fd, struct sockaddr __user *usockaddr,  in __sys_getpeername()  argument
2135 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_getpeername()
2155 SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr,  in SYSCALL_DEFINE3()  argument
2158 	return __sys_getpeername(fd, usockaddr, usockaddr_len);  in SYSCALL_DEFINE3()
2166 int __sys_sendto(int fd, void __user *buff, size_t len, unsigned int flags,  in __sys_sendto()  argument
2179 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_sendto()
2207 SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len,  in SYSCALL_DEFINE6()  argument
2211 	return __sys_sendto(fd, buff, len, flags, addr, addr_len);  in SYSCALL_DEFINE6()
2218 SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len,  in SYSCALL_DEFINE4()  argument
2221 	return __sys_sendto(fd, buff, len, flags, NULL, 0);  in SYSCALL_DEFINE4()
2229 int __sys_recvfrom(int fd, void __user *ubuf, size_t size, unsigned int flags,  in __sys_recvfrom()  argument
2245 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_recvfrom()
2265 SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,  in SYSCALL_DEFINE6()  argument
2269 	return __sys_recvfrom(fd, ubuf, size, flags, addr, addr_len);  in SYSCALL_DEFINE6()
2276 SYSCALL_DEFINE4(recv, int, fd, void __user *, ubuf, size_t, size,  in SYSCALL_DEFINE4()  argument
2279 	return __sys_recvfrom(fd, ubuf, size, flags, NULL, NULL);  in SYSCALL_DEFINE4()
2291 int __sys_setsockopt(int fd, int level, int optname, char __user *user_optval,  in __sys_setsockopt()  argument
2303 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_setsockopt()
2338 SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname,  in SYSCALL_DEFINE5()  argument
2341 	return __sys_setsockopt(fd, level, optname, optval, optlen);  in SYSCALL_DEFINE5()
2351 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,  in __sys_getsockopt()  argument
2359 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_getsockopt()
2388 SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname,  in SYSCALL_DEFINE5()  argument
2391 	return __sys_getsockopt(fd, level, optname, optval, optlen);  in SYSCALL_DEFINE5()
2409 int __sys_shutdown(int fd, int how)  in __sys_shutdown()  argument
2414 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_shutdown()
2422 SYSCALL_DEFINE2(shutdown, int, fd, int, how)  in SYSCALL_DEFINE2()  argument
2424 	return __sys_shutdown(fd, how);  in SYSCALL_DEFINE2()
2632 long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned int flags,  in __sys_sendmsg()  argument
2642 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_sendmsg()
2653 SYSCALL_DEFINE3(sendmsg, int, fd, struct user_msghdr __user *, msg, unsigned int, flags)  in SYSCALL_DEFINE3()  argument
2655 	return __sys_sendmsg(fd, msg, flags, true);  in SYSCALL_DEFINE3()
2662 int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen,  in __sys_sendmmsg()  argument
2681 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_sendmmsg()
2729 SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg,  in SYSCALL_DEFINE4()  argument
2732 	return __sys_sendmmsg(fd, mmsg, vlen, flags, true);  in SYSCALL_DEFINE4()
2840 long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned int flags,  in __sys_recvmsg()  argument
2850 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in __sys_recvmsg()
2861 SYSCALL_DEFINE3(recvmsg, int, fd, struct user_msghdr __user *, msg,  in SYSCALL_DEFINE3()  argument
2864 	return __sys_recvmsg(fd, msg, flags, true);  in SYSCALL_DEFINE3()
2871 static int do_recvmmsg(int fd, struct mmsghdr __user *mmsg,  in do_recvmmsg()  argument
2890 	sock = sockfd_lookup_light(fd, &err, &fput_needed);  in do_recvmmsg()
2982 int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg,  in __sys_recvmmsg()  argument
2997 		return do_recvmmsg(fd, mmsg, vlen, flags, NULL);  in __sys_recvmmsg()
2999 	datagrams = do_recvmmsg(fd, mmsg, vlen, flags, &timeout_sys);  in __sys_recvmmsg()
3013 SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg,  in SYSCALL_DEFINE5()  argument
3020 	return __sys_recvmmsg(fd, mmsg, vlen, flags, timeout, NULL);  in SYSCALL_DEFINE5()
3024 SYSCALL_DEFINE5(recvmmsg_time32, int, fd, struct mmsghdr __user *, mmsg,  in SYSCALL_DEFINE5()  argument
3031 	return __sys_recvmmsg(fd, mmsg, vlen, flags, NULL, timeout);  in SYSCALL_DEFINE5()