xref: /freebsd/usr.bin/ipcs/ipc.h (revision 2be1a816)
1 /*
2  * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
17  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
18  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
19  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  *
27  * The split of ipcs.c into ipcs.c and ipc.c to accomodate the
28  * changes in ipcrm.c was done by Edwin Groothuis <edwin@FreeBSD.org>
29  *
30  * $FreeBSD$
31  */
32 
33 /* Part of struct nlist symbols[] */
34 #define X_SEMA		0
35 #define X_SEMINFO	1
36 #define X_MSGINFO	2
37 #define X_MSQIDS	3
38 #define X_SHMINFO	4
39 #define X_SHMSEGS	5
40 
41 #define	SHMINFO		1
42 #define	SHMTOTAL	2
43 #define	MSGINFO		4
44 #define	MSGTOTAL	8
45 #define	SEMINFO		16
46 #define	SEMTOTAL	32
47 
48 #define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
49 #define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
50 	    (x == 'M' ? "shared memory segment" : "semaphore"))
51 
52 /* SysCtlGatherStruct structure. */
53 struct scgs_vector {
54 	const char *sysctl;
55 	off_t offset;
56 	size_t size;
57 };
58 
59 void	kget(int idx, void *addr, size_t size);
60 void	sysctlgatherstruct(void *addr, size_t size, struct scgs_vector *vec);
61 
62 extern int use_sysctl;
63 extern struct nlist symbols[];
64 extern kvm_t *kd;
65 
66 extern struct semid_kernel	*sema;
67 extern struct seminfo		seminfo;
68 extern struct msginfo		msginfo;
69 extern struct msqid_kernel	*msqids;
70 extern struct shminfo		shminfo;
71 extern struct shmid_kernel	*shmsegs;
72