1 /** $MirOS: src/usr.bin/ipcs/ipcs.c,v 1.3 2005/11/23 17:36:16 tg Exp $ */
2 /* $OpenBSD: ipcs.c,v 1.21 2005/02/22 14:47:45 jmc Exp $ */
3 /* $NetBSD: ipcs.c,v 1.25 2000/06/16 03:58:20 simonb Exp $ */
4
5 /*-
6 * Copyright (c) 2000 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Simon Burge.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 /*
42 * Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
43 * All rights reserved.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
47 * are met:
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 *
54 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
55 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
56 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
57 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
58 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
59 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
60 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
61 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
62 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
63 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 */
65
66 #include <sys/param.h>
67 #include <sys/sysctl.h>
68 #define _KERNEL /* XXX */
69 #include <sys/ipc.h>
70 #include <sys/sem.h>
71 #include <sys/shm.h>
72 #include <sys/msg.h>
73 #undef _KERNEL
74
75 #include <err.h>
76 #include <fcntl.h>
77 #include <grp.h>
78 #include <kvm.h>
79 #include <limits.h>
80 #include <nlist.h>
81 #include <paths.h>
82 #include <pwd.h>
83 #include <stdio.h>
84 #include <stdlib.h>
85 #include <string.h>
86 #include <time.h>
87 #include <unistd.h>
88
89 void cvt_time(time_t, char *, size_t);
90 char *fmt_perm(mode_t);
91 void ipcs_kvm(void);
92 int main(int, char **);
93 void msg_sysctl(void);
94 void sem_sysctl(void);
95 void shm_sysctl(void);
96 void show_msginfo(time_t, time_t, time_t, int, key_t, mode_t, uid_t,
97 gid_t, uid_t, gid_t, u_long, u_long, u_long, pid_t, pid_t);
98 void show_msginfo_hdr(void);
99 void show_msgtotal(struct msginfo *);
100 void show_seminfo_hdr(void);
101 void show_seminfo(time_t, time_t, int, key_t, mode_t, uid_t, gid_t,
102 uid_t, gid_t, int16_t);
103 void show_semtotal(struct seminfo *);
104 void show_shminfo(time_t, time_t, time_t, int, key_t, mode_t, uid_t,
105 gid_t, uid_t, gid_t, u_int32_t, int, pid_t, pid_t);
106 void show_shminfo_hdr(void);
107 void show_shmtotal(struct shminfo *);
108 __dead void usage(void);
109
110 char *
fmt_perm(mode_t mode)111 fmt_perm(mode_t mode)
112 {
113 static char buffer[12];
114
115 buffer[0] = '-';
116 buffer[1] = '-';
117 buffer[2] = ((mode & 0400) ? 'r' : '-');
118 buffer[3] = ((mode & 0200) ? 'w' : '-');
119 buffer[4] = ((mode & 0100) ? 'a' : '-');
120 buffer[5] = ((mode & 0040) ? 'r' : '-');
121 buffer[6] = ((mode & 0020) ? 'w' : '-');
122 buffer[7] = ((mode & 0010) ? 'a' : '-');
123 buffer[8] = ((mode & 0004) ? 'r' : '-');
124 buffer[9] = ((mode & 0002) ? 'w' : '-');
125 buffer[10] = ((mode & 0001) ? 'a' : '-');
126 buffer[11] = '\0';
127 return (&buffer[0]);
128 }
129
130 void
cvt_time(time_t t,char * buf,size_t buflen)131 cvt_time(time_t t, char *buf, size_t buflen)
132 {
133 struct tm *tm;
134
135 if (t == 0)
136 (void)strlcpy(buf, "no-entry", buflen);
137 else {
138 tm = localtime(&t);
139 (void)snprintf(buf, buflen, "%2d:%02d:%02d",
140 tm->tm_hour, tm->tm_min, tm->tm_sec);
141 }
142 }
143 #define SHMINFO 1
144 #define SHMTOTAL 2
145 #define MSGINFO 4
146 #define MSGTOTAL 8
147 #define SEMINFO 16
148 #define SEMTOTAL 32
149
150 #define BIGGEST 1
151 #define CREATOR 2
152 #define OUTSTANDING 4
153 #define PID 8
154 #define TIME 16
155
156 char *core = NULL, *namelist = NULL;
157 int display = SHMINFO | MSGINFO | SEMINFO;
158 int option = 0;
159
160 int
main(int argc,char ** argv)161 main(int argc, char **argv)
162 {
163 int ch;
164
165 while ((ch = getopt(argc, argv, "MmQqSsabC:cN:optT")) != -1)
166 switch (ch) {
167 case 'M':
168 display = SHMTOTAL;
169 break;
170 case 'm':
171 display = SHMINFO;
172 break;
173 case 'Q':
174 display = MSGTOTAL;
175 break;
176 case 'q':
177 display = MSGINFO;
178 break;
179 case 'S':
180 display = SEMTOTAL;
181 break;
182 case 's':
183 display = SEMINFO;
184 break;
185 case 'T':
186 display = SHMTOTAL | MSGTOTAL | SEMTOTAL;
187 break;
188 case 'a':
189 option |= BIGGEST | CREATOR | OUTSTANDING | PID | TIME;
190 break;
191 case 'b':
192 option |= BIGGEST;
193 break;
194 case 'C':
195 core = optarg;
196 break;
197 case 'c':
198 option |= CREATOR;
199 break;
200 case 'N':
201 namelist = optarg;
202 break;
203 case 'o':
204 option |= OUTSTANDING;
205 break;
206 case 'p':
207 option |= PID;
208 break;
209 case 't':
210 option |= TIME;
211 break;
212 default:
213 usage();
214 }
215
216 if (argc - optind > 0)
217 usage();
218
219 if (namelist == NULL && core == NULL) {
220 if (display & (MSGINFO | MSGTOTAL))
221 msg_sysctl();
222 if (display & (SHMINFO | SHMTOTAL))
223 shm_sysctl();
224 if (display & (SEMINFO | SEMTOTAL))
225 sem_sysctl();
226 } else
227 ipcs_kvm();
228
229 exit(0);
230 }
231
232 void
show_msgtotal(struct msginfo * msginfo)233 show_msgtotal(struct msginfo *msginfo)
234 {
235
236 printf("msginfo:\n");
237 printf("\tmsgmax: %6d\t(max characters in a message)\n",
238 msginfo->msgmax);
239 printf("\tmsgmni: %6d\t(# of message queues)\n",
240 msginfo->msgmni);
241 printf("\tmsgmnb: %6d\t(max characters in a message queue)\n",
242 msginfo->msgmnb);
243 printf("\tmsgtql: %6d\t(max # of messages in system)\n",
244 msginfo->msgtql);
245 printf("\tmsgssz: %6d\t(size of a message segment)\n",
246 msginfo->msgssz);
247 printf("\tmsgseg: %6d\t(# of message segments in system)\n\n",
248 msginfo->msgseg);
249 }
250
251 void
show_shmtotal(struct shminfo * shminfo)252 show_shmtotal(struct shminfo *shminfo)
253 {
254
255 printf("shminfo:\n");
256 printf("\tshmmax: %7d\t(max shared memory segment size)\n",
257 shminfo->shmmax);
258 printf("\tshmmin: %7d\t(min shared memory segment size)\n",
259 shminfo->shmmin);
260 printf("\tshmmni: %7d\t(max number of shared memory identifiers)\n",
261 shminfo->shmmni);
262 printf("\tshmseg: %7d\t(max shared memory segments per process)\n",
263 shminfo->shmseg);
264 printf("\tshmall: %7d\t(max amount of shared memory in pages)\n\n",
265 shminfo->shmall);
266 }
267
268 void
show_semtotal(struct seminfo * seminfo)269 show_semtotal(struct seminfo *seminfo)
270 {
271
272 printf("seminfo:\n");
273 printf("\tsemmni: %6d\t(# of semaphore identifiers)\n",
274 seminfo->semmni);
275 printf("\tsemmns: %6d\t(# of semaphores in system)\n",
276 seminfo->semmns);
277 printf("\tsemmnu: %6d\t(# of undo structures in system)\n",
278 seminfo->semmnu);
279 printf("\tsemmsl: %6d\t(max # of semaphores per id)\n",
280 seminfo->semmsl);
281 printf("\tsemopm: %6d\t(max # of operations per semop call)\n",
282 seminfo->semopm);
283 printf("\tsemume: %6d\t(max # of undo entries per process)\n",
284 seminfo->semume);
285 printf("\tsemusz: %6d\t(size in bytes of undo structure)\n",
286 seminfo->semusz);
287 printf("\tsemvmx: %6d\t(semaphore maximum value)\n",
288 seminfo->semvmx);
289 printf("\tsemaem: %6d\t(adjust on exit max value)\n\n",
290 seminfo->semaem);
291 }
292
293 void
show_msginfo_hdr(void)294 show_msginfo_hdr(void)
295 {
296
297 printf("Message Queues:\n");
298 printf("T ID KEY MODE OWNER GROUP");
299 if (option & CREATOR)
300 printf(" CREATOR CGROUP");
301 if (option & OUTSTANDING)
302 printf(" CBYTES QNUM");
303 if (option & BIGGEST)
304 printf(" QBYTES");
305 if (option & PID)
306 printf(" LSPID LRPID");
307 if (option & TIME)
308 printf(" STIME RTIME CTIME");
309 printf("\n");
310 }
311
312 void
show_msginfo(time_t stime,time_t rtime,time_t ctime,int ipcid,key_t key,mode_t mode,uid_t uid,gid_t gid,uid_t cuid,gid_t cgid,u_long cbytes,u_long qnum,u_long qbytes,pid_t lspid,pid_t lrpid)313 show_msginfo(time_t stime, time_t rtime, time_t ctime, int ipcid, key_t key,
314 mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
315 u_long cbytes, u_long qnum, u_long qbytes, pid_t lspid,
316 pid_t lrpid)
317 {
318 char stime_buf[100], rtime_buf[100], ctime_buf[100];
319
320 if (option & TIME) {
321 cvt_time(stime, stime_buf, sizeof(stime_buf));
322 cvt_time(rtime, rtime_buf, sizeof(rtime_buf));
323 cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
324 }
325
326 printf("q %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
327 user_from_uid(uid, 0), group_from_gid(gid, 0));
328
329 if (option & CREATOR)
330 printf(" %8s %8s", user_from_uid(cuid, 0),
331 group_from_gid(cgid, 0));
332
333 if (option & OUTSTANDING)
334 printf(" %6lu %5lu", cbytes, qnum);
335
336 if (option & BIGGEST)
337 printf(" %6lu", qbytes);
338
339 if (option & PID)
340 printf(" %5ld %5ld", (long)lspid, (long)lrpid);
341
342 if (option & TIME)
343 printf(" %s %s %s", stime_buf, rtime_buf, ctime_buf);
344
345 printf("\n");
346 }
347
348 void
show_shminfo_hdr(void)349 show_shminfo_hdr(void)
350 {
351
352 printf("Shared Memory:\n");
353 printf("T ID KEY MODE OWNER GROUP");
354 if (option & CREATOR)
355 printf(" CREATOR CGROUP");
356 if (option & OUTSTANDING)
357 printf(" NATTCH");
358 if (option & BIGGEST)
359 printf(" SEGSZ");
360 if (option & PID)
361 printf(" CPID LPID");
362 if (option & TIME)
363 printf(" ATIME DTIME CTIME");
364 printf("\n");
365 }
366
367 void
show_shminfo(time_t atime,time_t dtime,time_t ctime,int ipcid,key_t key,mode_t mode,uid_t uid,gid_t gid,uid_t cuid,gid_t cgid,u_int32_t nattch,int segsz,pid_t cpid,pid_t lpid)368 show_shminfo(time_t atime, time_t dtime, time_t ctime, int ipcid, key_t key,
369 mode_t mode, uid_t uid, gid_t gid, uid_t cuid, gid_t cgid,
370 u_int32_t nattch, int segsz, pid_t cpid, pid_t lpid)
371 {
372 char atime_buf[100], dtime_buf[100], ctime_buf[100];
373
374 if (option & TIME) {
375 cvt_time(atime, atime_buf, sizeof(atime_buf));
376 cvt_time(dtime, dtime_buf, sizeof(dtime_buf));
377 cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
378 }
379
380 printf("m %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
381 user_from_uid(uid, 0), group_from_gid(gid, 0));
382
383 if (option & CREATOR)
384 printf(" %8s %8s", user_from_uid(cuid, 0),
385 group_from_gid(cgid, 0));
386
387 if (option & OUTSTANDING)
388 printf(" %6d", nattch);
389
390 if (option & BIGGEST)
391 printf(" %7d", segsz);
392
393 if (option & PID)
394 printf(" %5d %5d", cpid, lpid);
395
396 if (option & TIME)
397 printf(" %s %s %s",
398 atime_buf,
399 dtime_buf,
400 ctime_buf);
401
402 printf("\n");
403 }
404
405 void
show_seminfo_hdr(void)406 show_seminfo_hdr(void)
407 {
408
409 printf("Semaphores:\n");
410 printf("T ID KEY MODE OWNER GROUP");
411 if (option & CREATOR)
412 printf(" CREATOR CGROUP");
413 if (option & BIGGEST)
414 printf(" NSEMS");
415 if (option & TIME)
416 printf(" OTIME CTIME");
417 printf("\n");
418 }
419
420 void
show_seminfo(time_t otime,time_t ctime,int ipcid,key_t key,mode_t mode,uid_t uid,gid_t gid,uid_t cuid,gid_t cgid,int16_t nsems)421 show_seminfo(time_t otime, time_t ctime, int ipcid, key_t key, mode_t mode,
422 uid_t uid, gid_t gid, uid_t cuid, gid_t cgid, int16_t nsems)
423 {
424 char ctime_buf[100], otime_buf[100];
425
426 if (option & TIME) {
427 cvt_time(otime, otime_buf, sizeof(otime_buf));
428 cvt_time(ctime, ctime_buf, sizeof(ctime_buf));
429 }
430
431 printf("s %8d %10ld %s %8s %8s", ipcid, key, fmt_perm(mode),
432 user_from_uid(uid, 0), group_from_gid(gid, 0));
433
434 if (option & CREATOR)
435 printf(" %8s %8s", user_from_uid(cuid, 0),
436 group_from_gid(cgid, 0));
437
438 if (option & BIGGEST)
439 printf(" %5d", nsems);
440
441 if (option & TIME)
442 printf(" %s %s", otime_buf, ctime_buf);
443
444 printf("\n");
445 }
446
447 void
msg_sysctl(void)448 msg_sysctl(void)
449 {
450 struct msg_sysctl_info *msgsi;
451 char *buf;
452 int mib[3];
453 size_t len;
454 int i, valid;
455
456 mib[0] = CTL_KERN;
457 mib[1] = KERN_SYSVMSG;
458 len = sizeof(valid);
459 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) {
460 warn("sysctl(KERN_SYSVMSG)");
461 return;
462 }
463 if (!valid) {
464 warnx("SVID messages facility not configured in the system");
465 return;
466 }
467
468 mib[0] = CTL_KERN;
469 mib[1] = KERN_SYSVIPC_INFO;
470 mib[2] = KERN_SYSVIPC_MSG_INFO;
471
472 if (!(display & MSGINFO)) {
473 /* totals only */
474 len = sizeof(struct msginfo);
475 } else {
476 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) {
477 warn("sysctl(KERN_SYSVIPC_MSG_INFO)");
478 return;
479 }
480 }
481
482 if ((buf = malloc(len)) == NULL)
483 err(1, "malloc");
484 msgsi = (struct msg_sysctl_info *)buf;
485 if (sysctl(mib, 3, msgsi, &len, NULL, 0) < 0) {
486 warn("sysctl(KERN_SYSVIPC_MSG_INFO)");
487 return;
488 }
489
490 if (display & MSGTOTAL)
491 show_msgtotal(&msgsi->msginfo);
492
493 if (display & MSGINFO) {
494 show_msginfo_hdr();
495 for (i = 0; i < msgsi->msginfo.msgmni; i++) {
496 struct msqid_ds *msqptr = &msgsi->msgids[i];
497 if (msqptr->msg_qbytes != 0)
498 show_msginfo(msqptr->msg_stime,
499 msqptr->msg_rtime,
500 msqptr->msg_ctime,
501 IXSEQ_TO_IPCID(i, msqptr->msg_perm),
502 msqptr->msg_perm.key,
503 msqptr->msg_perm.mode,
504 msqptr->msg_perm.uid,
505 msqptr->msg_perm.gid,
506 msqptr->msg_perm.cuid,
507 msqptr->msg_perm.cgid,
508 msqptr->msg_cbytes,
509 msqptr->msg_qnum,
510 msqptr->msg_qbytes,
511 msqptr->msg_lspid,
512 msqptr->msg_lrpid);
513 }
514 printf("\n");
515 }
516 }
517
518 void
shm_sysctl(void)519 shm_sysctl(void)
520 {
521 struct shm_sysctl_info *shmsi;
522 char *buf;
523 int mib[3];
524 size_t len;
525 int i, valid;
526
527 mib[0] = CTL_KERN;
528 mib[1] = KERN_SYSVSHM;
529 len = sizeof(valid);
530 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) {
531 warn("sysctl(KERN_SYSVSHM)");
532 return;
533 }
534 if (!valid) {
535 warnx("SVID shared memory facility not configured in "
536 "the system");
537 return;
538 }
539
540 mib[0] = CTL_KERN;
541 mib[1] = KERN_SYSVIPC_INFO;
542 mib[2] = KERN_SYSVIPC_SHM_INFO;
543
544 if (!(display & SHMINFO)) {
545 /* totals only */
546 len = sizeof(struct shminfo);
547 } else {
548 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) {
549 warn("sysctl(KERN_SYSVIPC_SHM_INFO)");
550 return;
551 }
552 }
553
554 if ((buf = malloc(len)) == NULL)
555 err(1, "malloc");
556 shmsi = (struct shm_sysctl_info *)buf;
557 if (sysctl(mib, 3, shmsi, &len, NULL, 0) < 0) {
558 warn("sysctl(KERN_SYSVIPC_SHM_INFO)");
559 return;
560 }
561
562 if (display & SHMTOTAL)
563 show_shmtotal(&shmsi->shminfo);
564
565 if (display & SHMINFO) {
566 show_shminfo_hdr();
567 for (i = 0; i < shmsi->shminfo.shmmni; i++) {
568 struct shmid_ds *shmptr = &shmsi->shmids[i];
569 if (shmptr->shm_internal)
570 show_shminfo(shmptr->shm_atime,
571 shmptr->shm_dtime,
572 shmptr->shm_ctime,
573 IXSEQ_TO_IPCID(i, shmptr->shm_perm),
574 shmptr->shm_perm.key,
575 shmptr->shm_perm.mode,
576 shmptr->shm_perm.uid,
577 shmptr->shm_perm.gid,
578 shmptr->shm_perm.cuid,
579 shmptr->shm_perm.cgid,
580 shmptr->shm_nattch,
581 shmptr->shm_segsz,
582 shmptr->shm_cpid,
583 shmptr->shm_lpid);
584 }
585 printf("\n");
586 }
587 }
588
589 void
sem_sysctl(void)590 sem_sysctl(void)
591 {
592 struct sem_sysctl_info *semsi;
593 char *buf;
594 int mib[3];
595 size_t len;
596 int i, valid;
597
598 mib[0] = CTL_KERN;
599 mib[1] = KERN_SYSVSEM;
600 len = sizeof(valid);
601 if (sysctl(mib, 2, &valid, &len, NULL, 0) < 0) {
602 warn("sysctl(KERN_SYSVSEM)");
603 return;
604 }
605 if (!valid) {
606 warnx("SVID shared memory facility not configured in "
607 "the system");
608 return;
609 }
610
611 mib[0] = CTL_KERN;
612 mib[1] = KERN_SYSVIPC_INFO;
613 mib[2] = KERN_SYSVIPC_SEM_INFO;
614
615 if (!(display & SEMINFO)) {
616 /* totals only */
617 len = sizeof(struct seminfo);
618 } else {
619 if (sysctl(mib, 3, NULL, &len, NULL, 0) < 0) {
620 warn("sysctl(KERN_SYSVIPC_SEM_INFO)");
621 return;
622 }
623 }
624
625 if ((buf = malloc(len)) == NULL)
626 err(1, "malloc");
627 semsi = (struct sem_sysctl_info *)buf;
628 if (sysctl(mib, 3, semsi, &len, NULL, 0) < 0) {
629 warn("sysctl(KERN_SYSVIPC_SEM_INFO)");
630 return;
631 }
632
633 if (display & SEMTOTAL)
634 show_semtotal(&semsi->seminfo);
635
636 if (display & SEMINFO) {
637 show_seminfo_hdr();
638 for (i = 0; i < semsi->seminfo.semmni; i++) {
639 struct semid_ds *semaptr = &semsi->semids[i];
640
641 if (semaptr->sem_base != NULL)
642 show_seminfo(semaptr->sem_otime,
643 semaptr->sem_ctime,
644 IXSEQ_TO_IPCID(i, semaptr->sem_perm),
645 semaptr->sem_perm.key,
646 semaptr->sem_perm.mode,
647 semaptr->sem_perm.uid,
648 semaptr->sem_perm.gid,
649 semaptr->sem_perm.cuid,
650 semaptr->sem_perm.cgid,
651 semaptr->sem_nsems);
652 }
653 printf("\n");
654 }
655 }
656
657 void
ipcs_kvm(void)658 ipcs_kvm(void)
659 {
660 struct msginfo msginfo;
661 struct msqid_ds *msqids;
662 struct seminfo seminfo;
663 struct semid_ds sem, **sema;
664 struct shminfo shminfo;
665 struct shmid_ds shmseg, **shmsegs;
666 char errbuf[_POSIX2_LINE_MAX];
667 u_long addr;
668 kvm_t *kd;
669 int i;
670 struct nlist symbols[] = {
671 {"_sema"},
672 #define X_SEMA 0
673 {"_seminfo"},
674 #define X_SEMINFO 1
675 {"_semu"},
676 #define X_SEMU 2
677 {"_msginfo"},
678 #define X_MSGINFO 3
679 {"_msqids"},
680 #define X_MSQIDS 4
681 {"_shminfo"},
682 #define X_SHMINFO 5
683 {"_shmsegs"},
684 #define X_SHMSEGS 6
685 {NULL}
686 };
687
688 if ((kd = kvm_openfiles(namelist, core, NULL, O_RDONLY,
689 errbuf)) == NULL)
690 errx(1, "can't open kvm: %s", errbuf);
691
692 switch (kvm_nlist(kd, symbols)) {
693 case 0:
694 break;
695 case -1:
696 errx(1, "%s: unable to read symbol table.",
697 namelist == NULL ? _PATH_UNIX : namelist);
698 /* NOTREACHED */
699 default:
700 #ifdef notdef /* they'll be told more civilly later */
701 warnx("nlist failed");
702 for (i = 0; symbols[i].n_name != NULL; i++)
703 if (symbols[i].n_value == 0)
704 warnx("symbol %s not found", symbols[i].n_name);
705 #endif
706 break;
707 }
708
709 if ((display & (MSGINFO | MSGTOTAL)) &&
710 (kvm_read(kd, symbols[X_MSGINFO].n_value,
711 &msginfo, sizeof(msginfo)) == sizeof(msginfo))) {
712
713 if (display & MSGTOTAL)
714 show_msgtotal(&msginfo);
715
716 if (display & MSGINFO) {
717 if (kvm_read(kd, symbols[X_MSQIDS].n_value,
718 &addr, sizeof(addr)) != sizeof(addr))
719 errx(1, "kvm_read (%s): %s",
720 symbols[X_MSQIDS].n_name, kvm_geterr(kd));
721
722 msqids = malloc(sizeof(struct msqid_ds) *
723 msginfo.msgmni);
724 if (msqids == NULL)
725 err(1, "malloc");
726
727 if (kvm_read(kd, addr, msqids,
728 sizeof(struct msqid_ds) * msginfo.msgmni) !=
729 sizeof(struct msqid_ds) * msginfo.msgmni)
730 errx(1, "kvm_read (msqids): %s",
731 kvm_geterr(kd));
732
733 show_msginfo_hdr();
734 for (i = 0; i < msginfo.msgmni; i++) {
735 struct msqid_ds *msqptr = &msqids[i];
736 if (msqptr->msg_qbytes != 0)
737 show_msginfo(msqptr->msg_stime,
738 msqptr->msg_rtime,
739 msqptr->msg_ctime,
740 IXSEQ_TO_IPCID(i, msqptr->msg_perm),
741 msqptr->msg_perm.key,
742 msqptr->msg_perm.mode,
743 msqptr->msg_perm.uid,
744 msqptr->msg_perm.gid,
745 msqptr->msg_perm.cuid,
746 msqptr->msg_perm.cgid,
747 msqptr->msg_cbytes,
748 msqptr->msg_qnum,
749 msqptr->msg_qbytes,
750 msqptr->msg_lspid,
751 msqptr->msg_lrpid);
752 }
753 printf("\n");
754 }
755 } else {
756 if (display & (MSGINFO | MSGTOTAL)) {
757 warnx("SVID messages facility not configured in "
758 "the system");
759 }
760 }
761 if ((display & (SHMINFO | SHMTOTAL)) &&
762 (kvm_read(kd, symbols[X_SHMINFO].n_value, &shminfo,
763 sizeof(shminfo)) == sizeof(shminfo))) {
764
765 if (display & SHMTOTAL)
766 show_shmtotal(&shminfo);
767
768 if (display & SHMINFO) {
769 if (kvm_read(kd, symbols[X_SHMSEGS].n_value, &addr,
770 sizeof(addr)) != sizeof(addr))
771 errx(1, "kvm_read (%s): %s",
772 symbols[X_SHMSEGS].n_name, kvm_geterr(kd));
773
774 shmsegs = malloc(sizeof(struct shmid_ds *) *
775 shminfo.shmmni);
776 if (shmsegs == NULL)
777 err(1, "malloc");
778
779 if (kvm_read(kd, addr, shmsegs,
780 sizeof(struct shmid_ds *) * shminfo.shmmni) !=
781 sizeof(struct shmid_ds *) * shminfo.shmmni)
782 errx(1, "kvm_read (shmsegs): %s",
783 kvm_geterr(kd));
784
785 show_shminfo_hdr();
786 for (i = 0; i < shminfo.shmmni; i++) {
787 if (shmsegs[i] == NULL)
788 continue;
789
790 if (kvm_read(kd, (u_long)shmsegs[i], &shmseg,
791 sizeof(shmseg)) != sizeof(shmseg))
792 errx(1, "kvm_read (shmseg): %s",
793 kvm_geterr(kd));
794 show_shminfo(shmseg.shm_atime,
795 shmseg.shm_dtime,
796 shmseg.shm_ctime,
797 IXSEQ_TO_IPCID(i, shmseg.shm_perm),
798 shmseg.shm_perm.key,
799 shmseg.shm_perm.mode,
800 shmseg.shm_perm.uid,
801 shmseg.shm_perm.gid,
802 shmseg.shm_perm.cuid,
803 shmseg.shm_perm.cgid,
804 shmseg.shm_nattch,
805 shmseg.shm_segsz,
806 shmseg.shm_cpid,
807 shmseg.shm_lpid);
808 }
809 printf("\n");
810 }
811 } else
812 if (display & (SHMINFO | SHMTOTAL)) {
813 warnx("SVID shared memory facility not configured in "
814 "the system");
815 }
816 if ((display & (SEMINFO | SEMTOTAL)) &&
817 (kvm_read(kd, symbols[X_SEMINFO].n_value, &seminfo,
818 sizeof(seminfo)) == sizeof(seminfo))) {
819 if (display & SEMTOTAL)
820 show_semtotal(&seminfo);
821
822 if (display & SEMINFO) {
823 if (kvm_read(kd, symbols[X_SEMA].n_value, &addr,
824 sizeof(addr)) != sizeof(addr))
825 errx(1, "kvm_read (%s): %s",
826 symbols[X_SEMA].n_name, kvm_geterr(kd));
827
828 sema = malloc(sizeof(struct semid_ds *) *
829 seminfo.semmni);
830 if (sema == NULL)
831 err(1, "malloc");
832
833 if (kvm_read(kd, addr, sema,
834 sizeof(struct semid_ds *) * seminfo.semmni) !=
835 sizeof(struct semid_ds *) * seminfo.semmni)
836 errx(1, "kvm_read (sema): %s",
837 kvm_geterr(kd));
838
839 show_seminfo_hdr();
840 for (i = 0; i < seminfo.semmni; i++) {
841 if (sema[i] == NULL)
842 continue;
843
844 if (kvm_read(kd, (u_long)sema[i], &sem,
845 sizeof(sem)) != sizeof(sem))
846 errx(1, "kvm_read (sem): %s",
847 kvm_geterr(kd));
848 show_seminfo(sem.sem_otime,
849 sem.sem_ctime,
850 IXSEQ_TO_IPCID(i, sem.sem_perm),
851 sem.sem_perm.key,
852 sem.sem_perm.mode,
853 sem.sem_perm.uid,
854 sem.sem_perm.gid,
855 sem.sem_perm.cuid,
856 sem.sem_perm.cgid,
857 sem.sem_nsems);
858 }
859 printf("\n");
860 }
861 } else
862 if (display & (SEMINFO | SEMTOTAL)) {
863 warnx("SVID semaphores facility not configured in "
864 "the system");
865 }
866 kvm_close(kd);
867 }
868
869 void
usage(void)870 usage(void)
871 {
872 extern char *__progname;
873
874 fprintf(stderr,
875 "usage: %s [-abcMmopQqSsTt] [-C core] [-N system]\n",
876 __progname);
877 exit(1);
878 }
879