1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_LINUX_IPC_H 2 #ifndef _UAPI_LINUX_IPC_H
3 #define _UAPI_LINUX_IPC_H 3 #define _UAPI_LINUX_IPC_H
4 4
5 #include <linux/types.h> 5 #include <linux/types.h>
6 6
7 #define IPC_PRIVATE ((__kernel_key_t) 0) 7 #define IPC_PRIVATE ((__kernel_key_t) 0)
8 8
9 /* Obsolete, used only for backwards compatibi 9 /* Obsolete, used only for backwards compatibility and libc5 compiles */
10 struct ipc_perm 10 struct ipc_perm
11 { 11 {
12 __kernel_key_t key; 12 __kernel_key_t key;
13 __kernel_uid_t uid; 13 __kernel_uid_t uid;
14 __kernel_gid_t gid; 14 __kernel_gid_t gid;
15 __kernel_uid_t cuid; 15 __kernel_uid_t cuid;
16 __kernel_gid_t cgid; 16 __kernel_gid_t cgid;
17 __kernel_mode_t mode; 17 __kernel_mode_t mode;
18 unsigned short seq; 18 unsigned short seq;
19 }; 19 };
20 20
21 /* Include the definition of ipc64_perm */ 21 /* Include the definition of ipc64_perm */
22 #include <asm/ipcbuf.h> 22 #include <asm/ipcbuf.h>
23 23
24 /* resource get request flags */ 24 /* resource get request flags */
25 #define IPC_CREAT 00001000 /* create if key 25 #define IPC_CREAT 00001000 /* create if key is nonexistent */
26 #define IPC_EXCL 00002000 /* fail if key e 26 #define IPC_EXCL 00002000 /* fail if key exists */
27 #define IPC_NOWAIT 00004000 /* return error 27 #define IPC_NOWAIT 00004000 /* return error on wait */
28 28
29 /* these fields are used by the DIPC package s 29 /* these fields are used by the DIPC package so the kernel as standard
30 should avoid using them if possible */ 30 should avoid using them if possible */
31 31
32 #define IPC_DIPC 00010000 /* make it distribu 32 #define IPC_DIPC 00010000 /* make it distributed */
33 #define IPC_OWN 00020000 /* this machine is 33 #define IPC_OWN 00020000 /* this machine is the DIPC owner */
34 34
35 /* 35 /*
36 * Control commands used with semctl, msgctl a 36 * Control commands used with semctl, msgctl and shmctl
37 * see also specific commands in sem.h, msg.h 37 * see also specific commands in sem.h, msg.h and shm.h
38 */ 38 */
39 #define IPC_RMID 0 /* remove resource */ 39 #define IPC_RMID 0 /* remove resource */
40 #define IPC_SET 1 /* set ipc_perm options 40 #define IPC_SET 1 /* set ipc_perm options */
41 #define IPC_STAT 2 /* get ipc_perm options 41 #define IPC_STAT 2 /* get ipc_perm options */
42 #define IPC_INFO 3 /* see ipcs */ 42 #define IPC_INFO 3 /* see ipcs */
43 43
44 /* 44 /*
45 * Version flags for semctl, msgctl, and shmct 45 * Version flags for semctl, msgctl, and shmctl commands
46 * These are passed as bitflags or-ed with the 46 * These are passed as bitflags or-ed with the actual command
47 */ 47 */
48 #define IPC_OLD 0 /* Old version (no 32- 48 #define IPC_OLD 0 /* Old version (no 32-bit UID support on many
49 architectures) */ 49 architectures) */
50 #define IPC_64 0x0100 /* New version (suppor 50 #define IPC_64 0x0100 /* New version (support 32-bit UIDs, bigger
51 message sizes, etc. 51 message sizes, etc. */
52 52
53 /* 53 /*
54 * These are used to wrap system calls. 54 * These are used to wrap system calls.
55 * 55 *
56 * See architecture code for ugly details.. 56 * See architecture code for ugly details..
57 */ 57 */
58 struct ipc_kludge { 58 struct ipc_kludge {
59 struct msgbuf __user *msgp; 59 struct msgbuf __user *msgp;
60 long msgtyp; 60 long msgtyp;
61 }; 61 };
62 62
63 #define SEMOP 1 63 #define SEMOP 1
64 #define SEMGET 2 64 #define SEMGET 2
65 #define SEMCTL 3 65 #define SEMCTL 3
66 #define SEMTIMEDOP 4 66 #define SEMTIMEDOP 4
67 #define MSGSND 11 67 #define MSGSND 11
68 #define MSGRCV 12 68 #define MSGRCV 12
69 #define MSGGET 13 69 #define MSGGET 13
70 #define MSGCTL 14 70 #define MSGCTL 14
71 #define SHMAT 21 71 #define SHMAT 21
72 #define SHMDT 22 72 #define SHMDT 22
73 #define SHMGET 23 73 #define SHMGET 23
74 #define SHMCTL 24 74 #define SHMCTL 24
75 75
76 /* Used by the DIPC package, try and avoid reu 76 /* Used by the DIPC package, try and avoid reusing it */
77 #define DIPC 25 77 #define DIPC 25
78 78
79 #define IPCCALL(version,op) ((version)<<16 79 #define IPCCALL(version,op) ((version)<<16 | (op))
80 80
81 81
82 #endif /* _UAPI_LINUX_IPC_H */ 82 #endif /* _UAPI_LINUX_IPC_H */
83 83
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