1 /* 2 * Copyright (c) 1993 Ulrich Pegelow <pegelow (at) moorea.uni-muenster.de> 3 * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl> 4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com> 5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) 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 }; 166 167 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 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 } 208 209 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 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 } 236 237 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 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 } 266 267 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 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 } 336 337 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 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 368 369 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 } 385 386 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 } 397 398 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 } 414 415 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 } 429 430 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 } 460 461 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 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 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 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 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 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 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
