1 /*
2 * Copyright (c) 1993 Ulrich Pegelow <pegelow@moorea.uni-muenster.de>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $Id$
31 */
32
33 #include "defs.h"
34
35 #if defined(LINUX) || defined(SUNOS4) || defined(FREEBSD)
36
37 # ifdef HAVE_MQUEUE_H
38 # include <mqueue.h>
39 # endif
40
41 #include <fcntl.h>
42 #include <sys/ipc.h>
43 #ifdef HAVE_ANDROID_OS
44 #include <linux/sem.h>
45 #include <linux/msg.h>
46 #include <linux/shm.h>
47 #else
48 #include <sys/sem.h>
49 #include <sys/msg.h>
50 #include <sys/shm.h>
51 #endif
52
53 #ifndef MSG_STAT
54 #define MSG_STAT 11
55 #endif
56 #ifndef MSG_INFO
57 #define MSG_INFO 12
58 #endif
59 #ifndef SHM_STAT
60 #define SHM_STAT 13
61 #endif
62 #ifndef SHM_INFO
63 #define SHM_INFO 14
64 #endif
65 #ifndef SEM_STAT
66 #define SEM_STAT 18
67 #endif
68 #ifndef SEM_INFO
69 #define SEM_INFO 19
70 #endif
71
72 #if defined LINUX && !defined IPC_64
73 # define IPC_64 0x100
74 #endif
75
76 extern void printsigevent(struct tcb *tcp, long arg);
77
78 static const struct xlat msgctl_flags[] = {
79 { IPC_RMID, "IPC_RMID" },
80 { IPC_SET, "IPC_SET" },
81 { IPC_STAT, "IPC_STAT" },
82 #ifdef LINUX
83 { IPC_INFO, "IPC_INFO" },
84 { MSG_STAT, "MSG_STAT" },
85 { MSG_INFO, "MSG_INFO" },
86 #endif /* LINUX */
87 { 0, NULL },
88 };
89
90 static const struct xlat semctl_flags[] = {
91 { IPC_RMID, "IPC_RMID" },
92 { IPC_SET, "IPC_SET" },
93 { IPC_STAT, "IPC_STAT" },
94 #ifdef LINUX
95 { IPC_INFO, "IPC_INFO" },
96 { SEM_STAT, "SEM_STAT" },
97 { SEM_INFO, "SEM_INFO" },
98 #endif /* LINUX */
99 { GETPID, "GETPID" },
100 { GETVAL, "GETVAL" },
101 { GETALL, "GETALL" },
102 { GETNCNT, "GETNCNT" },
103 { GETZCNT, "GETZCNT" },
104 { SETVAL, "SETVAL" },
105 { SETALL, "SETALL" },
106 { 0, NULL },
107 };
108
109 static const struct xlat shmctl_flags[] = {
110 { IPC_RMID, "IPC_RMID" },
111 { IPC_SET, "IPC_SET" },
112 { IPC_STAT, "IPC_STAT" },
113 #ifdef LINUX
114 { IPC_INFO, "IPC_INFO" },
115 { SHM_STAT, "SHM_STAT" },
116 { SHM_INFO, "SHM_INFO" },
117 #endif /* LINUX */
118 #ifdef SHM_LOCK
119 { SHM_LOCK, "SHM_LOCK" },
120 #endif
121 #ifdef SHM_UNLOCK
122 { SHM_UNLOCK, "SHM_UNLOCK" },
123 #endif
124 { 0, NULL },
125 };
126
127 static const struct xlat resource_flags[] = {
128 { IPC_CREAT, "IPC_CREAT" },
129 { IPC_EXCL, "IPC_EXCL" },
130 { IPC_NOWAIT, "IPC_NOWAIT" },
131 { 0, NULL },
132 };
133
134 static const struct xlat shm_resource_flags[] = {
135 { IPC_CREAT, "IPC_CREAT" },
136 { IPC_EXCL, "IPC_EXCL" },
137 #ifdef SHM_HUGETLB
138 { SHM_HUGETLB, "SHM_HUGETLB" },
139 #endif
140 { 0, NULL },
141 };
142
143 static const struct xlat shm_flags[] = {
144 #ifdef LINUX
145 { SHM_REMAP, "SHM_REMAP" },
146 #endif /* LINUX */
147 { SHM_RDONLY, "SHM_RDONLY" },
148 { SHM_RND, "SHM_RND" },
149 { 0, NULL },
150 };
151
152 static const struct xlat msg_flags[] = {
153 { MSG_NOERROR, "MSG_NOERROR" },
154 #ifdef LINUX
155 { MSG_EXCEPT, "MSG_EXCEPT" },
156 #endif /* LINUX */
157 { IPC_NOWAIT, "IPC_NOWAIT" },
158 { 0, NULL },
159 };
160
161 static const struct xlat semop_flags[] = {
162 { SEM_UNDO, "SEM_UNDO" },
163 { IPC_NOWAIT, "IPC_NOWAIT" },
164 { 0, NULL },
165 };
166
sys_msgget(tcp)167 int sys_msgget(tcp)
168 struct tcb *tcp;
169 {
170 if (entering(tcp)) {
171 if (tcp->u_arg[0])
172 tprintf("%#lx", tcp->u_arg[0]);
173 else
174 tprintf("IPC_PRIVATE");
175 tprintf(", ");
176 if (printflags(resource_flags, tcp->u_arg[1] & ~0777, NULL) != 0)
177 tprintf("|");
178 tprintf("%#lo", tcp->u_arg[1] & 0777);
179 }
180 return 0;
181 }
182
183 #ifdef IPC_64
184 # define PRINTCTL(flagset, arg, dflt) \
185 if ((arg) & IPC_64) tprintf("IPC_64|"); \
186 printxval((flagset), (arg) &~ IPC_64, dflt)
187 #else
188 # define PRINTCTL printxval
189 #endif
190
191 static int
indirect_ipccall(tcp)192 indirect_ipccall(tcp)
193 struct tcb *tcp;
194 {
195 #ifdef LINUX
196 #ifdef X86_64
197 return current_personality > 0;
198 #endif
199 #if defined IA64
200 return tcp->scno < 1024; /* ia32 emulation syscalls are low */
201 #endif
202 #if !defined MIPS && !defined HPPA
203 return 1;
204 #endif
205 #endif /* LINUX */
206 return 0;
207 }
208
sys_msgctl(tcp)209 int sys_msgctl(tcp)
210 struct tcb *tcp;
211 {
212 if (entering(tcp)) {
213 tprintf("%lu, ", tcp->u_arg[0]);
214 PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???");
215 tprintf(", %#lx", tcp->u_arg[indirect_ipccall(tcp) ? 3 : 2]);
216 }
217 return 0;
218 }
219
220 static void
tprint_msgsnd(struct tcb * tcp,long addr,unsigned long count,unsigned long flags)221 tprint_msgsnd(struct tcb *tcp, long addr, unsigned long count,
222 unsigned long flags)
223 {
224 long mtype;
225
226 if (umove(tcp, addr, &mtype) < 0) {
227 tprintf("%#lx", addr);
228 } else {
229 tprintf("{%lu, ", mtype);
230 printstr(tcp, addr + sizeof(mtype), count);
231 tprintf("}");
232 }
233 tprintf(", %lu, ", count);
234 printflags(msg_flags, flags, "MSG_???");
235 }
236
sys_msgsnd(struct tcb * tcp)237 int sys_msgsnd(struct tcb *tcp)
238 {
239 if (entering(tcp)) {
240 tprintf("%d, ", (int) tcp->u_arg[0]);
241 if (indirect_ipccall(tcp)) {
242 tprint_msgsnd(tcp, tcp->u_arg[3], tcp->u_arg[1],
243 tcp->u_arg[2]);
244 } else {
245 tprint_msgsnd(tcp, tcp->u_arg[1], tcp->u_arg[2],
246 tcp->u_arg[3]);
247 }
248 }
249 return 0;
250 }
251
252 static void
tprint_msgrcv(struct tcb * tcp,long addr,unsigned long count,long msgtyp)253 tprint_msgrcv(struct tcb *tcp, long addr, unsigned long count, long msgtyp)
254 {
255 long mtype;
256
257 if (syserror(tcp) || umove(tcp, addr, &mtype) < 0) {
258 tprintf("%#lx", addr);
259 } else {
260 tprintf("{%lu, ", mtype);
261 printstr(tcp, addr + sizeof(mtype), count);
262 tprintf("}");
263 }
264 tprintf(", %lu, %ld, ", count, msgtyp);
265 }
266
sys_msgrcv(struct tcb * tcp)267 int sys_msgrcv(struct tcb *tcp)
268 {
269 if (entering(tcp)) {
270 tprintf("%d, ", (int) tcp->u_arg[0]);
271 } else {
272 if (indirect_ipccall(tcp)) {
273 struct ipc_wrapper {
274 struct msgbuf *msgp;
275 long msgtyp;
276 } tmp;
277
278 if (umove(tcp, tcp->u_arg[3], &tmp) < 0) {
279 tprintf("%#lx, %lu, ",
280 tcp->u_arg[3], tcp->u_arg[1]);
281 } else {
282 tprint_msgrcv(tcp, (long) tmp.msgp,
283 tcp->u_arg[1], tmp.msgtyp);
284 }
285 printflags(msg_flags, tcp->u_arg[2], "MSG_???");
286 } else {
287 tprint_msgrcv(tcp, tcp->u_arg[1],
288 tcp->u_arg[2], tcp->u_arg[3]);
289 printflags(msg_flags, tcp->u_arg[4], "MSG_???");
290 }
291 }
292 return 0;
293 }
294
295 static void
tprint_sembuf(struct tcb * tcp,long addr,unsigned long count)296 tprint_sembuf(struct tcb *tcp, long addr, unsigned long count)
297 {
298 unsigned long i, max_count;
299
300 if (abbrev(tcp))
301 max_count = (max_strlen < count) ? max_strlen : count;
302 else
303 max_count = count;
304
305 if (!max_count) {
306 tprintf("%#lx, %lu", addr, count);
307 return;
308 }
309
310 for(i = 0; i < max_count; ++i) {
311 struct sembuf sb;
312 if (i)
313 tprintf(", ");
314 if (umove(tcp, addr + i * sizeof(struct sembuf), &sb) < 0) {
315 if (i) {
316 tprintf("{???}");
317 break;
318 } else {
319 tprintf("%#lx, %lu", addr, count);
320 return;
321 }
322 } else {
323 if (!i)
324 tprintf("{");
325 tprintf("{%u, %d, ", sb.sem_num, sb.sem_op);
326 printflags(semop_flags, sb.sem_flg, "SEM_???");
327 tprintf("}");
328 }
329 }
330
331 if (i < max_count || max_count < count)
332 tprintf(", ...");
333
334 tprintf("}, %lu", count);
335 }
336
sys_semop(struct tcb * tcp)337 int sys_semop(struct tcb *tcp)
338 {
339 if (entering(tcp)) {
340 tprintf("%lu, ", tcp->u_arg[0]);
341 if (indirect_ipccall(tcp)) {
342 tprint_sembuf(tcp, tcp->u_arg[3], tcp->u_arg[1]);
343 } else {
344 tprint_sembuf(tcp, tcp->u_arg[1], tcp->u_arg[2]);
345 }
346 }
347 return 0;
348 }
349
350 #ifdef LINUX
sys_semtimedop(struct tcb * tcp)351 int sys_semtimedop(struct tcb *tcp)
352 {
353 if (entering(tcp)) {
354 tprintf("%lu, ", tcp->u_arg[0]);
355 if (indirect_ipccall(tcp)) {
356 tprint_sembuf(tcp, tcp->u_arg[3], tcp->u_arg[1]);
357 tprintf(", ");
358 printtv(tcp, tcp->u_arg[5]);
359 } else {
360 tprint_sembuf(tcp, tcp->u_arg[1], tcp->u_arg[2]);
361 tprintf(", ");
362 printtv(tcp, tcp->u_arg[3]);
363 }
364 }
365 return 0;
366 }
367 #endif
368
sys_semget(tcp)369 int sys_semget(tcp)
370 struct tcb *tcp;
371 {
372 if (entering(tcp)) {
373 if (tcp->u_arg[0])
374 tprintf("%#lx", tcp->u_arg[0]);
375 else
376 tprintf("IPC_PRIVATE");
377 tprintf(", %lu", tcp->u_arg[1]);
378 tprintf(", ");
379 if (printflags(resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0)
380 tprintf("|");
381 tprintf("%#lo", tcp->u_arg[2] & 0777);
382 }
383 return 0;
384 }
385
sys_semctl(tcp)386 int sys_semctl(tcp)
387 struct tcb *tcp;
388 {
389 if (entering(tcp)) {
390 tprintf("%lu", tcp->u_arg[0]);
391 tprintf(", %lu, ", tcp->u_arg[1]);
392 PRINTCTL(semctl_flags, tcp->u_arg[2], "SEM_???");
393 tprintf(", %#lx", tcp->u_arg[3]);
394 }
395 return 0;
396 }
397
sys_shmget(tcp)398 int sys_shmget(tcp)
399 struct tcb *tcp;
400 {
401 if (entering(tcp)) {
402 if (tcp->u_arg[0])
403 tprintf("%#lx", tcp->u_arg[0]);
404 else
405 tprintf("IPC_PRIVATE");
406 tprintf(", %lu", tcp->u_arg[1]);
407 tprintf(", ");
408 if (printflags(shm_resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0)
409 tprintf("|");
410 tprintf("%#lo", tcp->u_arg[2] & 0777);
411 }
412 return 0;
413 }
414
sys_shmctl(tcp)415 int sys_shmctl(tcp)
416 struct tcb *tcp;
417 {
418 if (entering(tcp)) {
419 tprintf("%lu, ", tcp->u_arg[0]);
420 PRINTCTL(shmctl_flags, tcp->u_arg[1], "SHM_???");
421 if (indirect_ipccall(tcp)) {
422 tprintf(", %#lx", tcp->u_arg[3]);
423 } else {
424 tprintf(", %#lx", tcp->u_arg[2]);
425 }
426 }
427 return 0;
428 }
429
sys_shmat(tcp)430 int sys_shmat(tcp)
431 struct tcb *tcp;
432 {
433 #ifdef LINUX
434 unsigned long raddr;
435 #endif /* LINUX */
436
437 if (exiting(tcp)) {
438 tprintf("%lu", tcp->u_arg[0]);
439 if (indirect_ipccall(tcp)) {
440 tprintf(", %#lx", tcp->u_arg[3]);
441 tprintf(", ");
442 printflags(shm_flags, tcp->u_arg[1], "SHM_???");
443 } else {
444 tprintf(", %#lx", tcp->u_arg[1]);
445 tprintf(", ");
446 printflags(shm_flags, tcp->u_arg[2], "SHM_???");
447 }
448 if (syserror(tcp))
449 return 0;
450 /* HPPA does not use an IPC multiplexer on Linux. */
451 #if defined(LINUX) && !defined(HPPA)
452 if (umove(tcp, tcp->u_arg[2], &raddr) < 0)
453 return RVAL_NONE;
454 tcp->u_rval = raddr;
455 #endif /* LINUX */
456 return RVAL_HEX;
457 }
458 return 0;
459 }
460
sys_shmdt(tcp)461 int sys_shmdt(tcp)
462 struct tcb *tcp;
463 {
464 if (entering(tcp)) {
465 if (indirect_ipccall(tcp)) {
466 tprintf("%#lx", tcp->u_arg[3]);
467 } else {
468 tprintf("%#lx", tcp->u_arg[0]);
469 }
470 }
471 return 0;
472 }
473
474 #endif /* defined(LINUX) || defined(SUNOS4) || defined(FREEBSD) */
475
476 #ifdef LINUX
477 int
sys_mq_open(struct tcb * tcp)478 sys_mq_open(struct tcb *tcp)
479 {
480 if (entering(tcp)) {
481 printpath(tcp, tcp->u_arg[0]);
482 tprintf(", ");
483 /* flags */
484 tprint_open_modes(tcp->u_arg[1]);
485 if (tcp->u_arg[1] & O_CREAT) {
486 # ifndef HAVE_MQUEUE_H
487 tprintf(", %lx", tcp->u_arg[2]);
488 # else
489 struct mq_attr attr;
490 /* mode */
491 tprintf(", %#lo, ", tcp->u_arg[2]);
492 if (umove(tcp, tcp->u_arg[3], &attr) < 0)
493 tprintf("{ ??? }");
494 else
495 tprintf("{mq_maxmsg=%ld, mq_msgsize=%ld}",
496 attr.mq_maxmsg, attr.mq_msgsize);
497 # endif
498 }
499 }
500 return 0;
501 }
502
503 int
sys_mq_timedsend(struct tcb * tcp)504 sys_mq_timedsend(struct tcb *tcp)
505 {
506 if (entering(tcp)) {
507 tprintf("%ld, ", tcp->u_arg[0]);
508 printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
509 tprintf(", %lu, %ld, ", tcp->u_arg[2], tcp->u_arg[3]);
510 printtv(tcp, tcp->u_arg[4]);
511 }
512 return 0;
513 }
514
515 int
sys_mq_timedreceive(struct tcb * tcp)516 sys_mq_timedreceive(struct tcb *tcp)
517 {
518 if (entering(tcp))
519 tprintf("%ld, ", tcp->u_arg[0]);
520 else {
521 printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
522 tprintf(", %lu, %ld, ", tcp->u_arg[2], tcp->u_arg[3]);
523 printtv(tcp, tcp->u_arg[4]);
524 }
525 return 0;
526 }
527
528 int
sys_mq_notify(struct tcb * tcp)529 sys_mq_notify(struct tcb *tcp)
530 {
531 if (entering(tcp)) {
532 tprintf("%ld, ", tcp->u_arg[0]);
533 printsigevent(tcp, tcp->u_arg[1]);
534 }
535 return 0;
536 }
537
538 static void
printmqattr(struct tcb * tcp,long addr)539 printmqattr(struct tcb *tcp, long addr)
540 {
541 if (addr == 0)
542 tprintf("NULL");
543 else {
544 # ifndef HAVE_MQUEUE_H
545 tprintf("%#lx", addr);
546 # else
547 struct mq_attr attr;
548 if (umove(tcp, addr, &attr) < 0) {
549 tprintf("{...}");
550 return;
551 }
552 tprintf("{mq_flags=");
553 tprint_open_modes(attr.mq_flags);
554 tprintf(", mq_maxmsg=%ld, mq_msgsize=%ld, mq_curmsg=%ld}",
555 attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs);
556 # endif
557 }
558 }
559
560 int
sys_mq_getsetattr(struct tcb * tcp)561 sys_mq_getsetattr(struct tcb *tcp)
562 {
563 if (entering(tcp)) {
564 tprintf("%ld, ", tcp->u_arg[0]);
565 printmqattr(tcp, tcp->u_arg[1]);
566 tprintf(", ");
567 } else
568 printmqattr(tcp, tcp->u_arg[2]);
569 return 0;
570 }
571 #endif
572