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