1/* ID for functions called via socketcall system call.
2 Copyright (C) 1995-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _SYS_SOCKETCALL_H
20#define _SYS_SOCKETCALL_H 1
21
22#include <sysdep.h>
23
24/* Define unique numbers for the operations permitted on socket. Linux
25 uses a single system call for all these functions. The relevant code
26 file is /usr/include/linux/net.h.
27 We cannot use an enum here because the values are used in assembler
28 code. */
29
30#define SOCKOP_invalid -1
31#define SOCKOP_socket 1
32#define SOCKOP_bind 2
33#define SOCKOP_connect 3
34#define SOCKOP_listen 4
35#define SOCKOP_accept 5
36#define SOCKOP_getsockname 6
37#define SOCKOP_getpeername 7
38#define SOCKOP_socketpair 8
39#define SOCKOP_send 9
40#define SOCKOP_recv 10
41#define SOCKOP_sendto 11
42#define SOCKOP_recvfrom 12
43#define SOCKOP_shutdown 13
44#define SOCKOP_setsockopt 14
45#define SOCKOP_getsockopt 15
46#define SOCKOP_sendmsg 16
47#define SOCKOP_recvmsg 17
48#define SOCKOP_accept4 18
49#define SOCKOP_recvmmsg 19
50#define SOCKOP_sendmmsg 20
51
52#define __SOCKETCALL1(name, a1) \
53 INLINE_SYSCALL (socketcall, 2, name, \
54 ((long int [1]) { (long int) (a1) }))
55#define __SOCKETCALL2(name, a1, a2) \
56 INLINE_SYSCALL (socketcall, 2, name, \
57 ((long int [2]) { (long int) (a1), (long int) (a2) }))
58#define __SOCKETCALL3(name, a1, a2, a3) \
59 INLINE_SYSCALL (socketcall, 2, name, \
60 ((long int [3]) { (long int) (a1), (long int) (a2), (long int) (a3) }))
61#define __SOCKETCALL4(name, a1, a2, a3, a4) \
62 INLINE_SYSCALL (socketcall, 2, name, \
63 ((long int [4]) { (long int) (a1), (long int) (a2), (long int) (a3), \
64 (long int) (a4) }))
65#define __SOCKETCALL5(name, a1, a2, a3, a4, a5) \
66 INLINE_SYSCALL (socketcall, 2, name, \
67 ((long int [5]) { (long int) (a1), (long int) (a2), (long int) (a3), \
68 (long int) (a4), (long int) (a5) }))
69#define __SOCKETCALL6(name, a1, a2, a3, a4, a5, a6) \
70 INLINE_SYSCALL (socketcall, 2, name, \
71 ((long int [6]) { (long int) (a1), (long int) (a2), (long int) (a3), \
72 (long int) (a4), (long int) (a5), (long int) (a6) }))
73
74#define __SOCKETCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n
75#define __SOCKETCALL_NARGS(...) \
76 __SOCKETCALL_NARGS_X (__VA_ARGS__,7,6,5,4,3,2,1,0,)
77#define __SOCKETCALL_CONCAT_X(a,b) a##b
78#define __SOCKETCALL_CONCAT(a,b) __SOCKETCALL_CONCAT_X (a, b)
79#define __SOCKETCALL_DISP(b,...) \
80 __SOCKETCALL_CONCAT (b,__SOCKETCALL_NARGS(__VA_ARGS__))(__VA_ARGS__)
81
82#define __SOCKETCALL(...) __SOCKETCALL_DISP (__SOCKETCALL, __VA_ARGS__)
83
84
85#define SOCKETCALL(name, args...) \
86 ({ \
87 long int sc_ret = __SOCKETCALL (SOCKOP_##name, args); \
88 sc_ret; \
89 })
90
91
92#define SOCKETCALL_CANCEL(name, args...) \
93 ({ \
94 int oldtype = LIBC_CANCEL_ASYNC (); \
95 long int sc_ret = __SOCKETCALL (SOCKOP_##name, args); \
96 LIBC_CANCEL_RESET (oldtype); \
97 sc_ret; \
98 })
99
100
101#endif /* sys/socketcall.h */
102