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: ipc.c,v 1.10 2005/06/01 19:02:37 roland Exp $ 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 #include <sys/sem.h> 44 #include <sys/msg.h> 45 #include <sys/shm.h> 46 47 #ifndef MSG_STAT 48 #define MSG_STAT 11 49 #endif 50 #ifndef MSG_INFO 51 #define MSG_INFO 12 52 #endif 53 #ifndef SHM_STAT 54 #define SHM_STAT 13 55 #endif 56 #ifndef SHM_INFO 57 #define SHM_INFO 14 58 #endif 59 #ifndef SEM_STAT 60 #define SEM_STAT 18 61 #endif 62 #ifndef SEM_INFO 63 #define SEM_INFO 19 64 #endif 65 66 #if defined LINUX && !defined IPC_64 67 # define IPC_64 0x100 68 #endif 69 70 extern const struct xlat openmodes[]; 71 extern void printsigevent(struct tcb *tcp, long arg); 72 73 static const struct xlat msgctl_flags[] = { 74 { IPC_RMID, "IPC_RMID" }, 75 { IPC_SET, "IPC_SET" }, 76 { IPC_STAT, "IPC_STAT" }, 77 #ifdef LINUX 78 { IPC_INFO, "IPC_INFO" }, 79 { MSG_STAT, "MSG_STAT" }, 80 { MSG_INFO, "MSG_INFO" }, 81 #endif /* LINUX */ 82 { 0, NULL }, 83 }; 84 85 static const struct xlat semctl_flags[] = { 86 { IPC_RMID, "IPC_RMID" }, 87 { IPC_SET, "IPC_SET" }, 88 { IPC_STAT, "IPC_STAT" }, 89 #ifdef LINUX 90 { IPC_INFO, "IPC_INFO" }, 91 { SEM_STAT, "SEM_STAT" }, 92 { SEM_INFO, "SEM_INFO" }, 93 #endif /* LINUX */ 94 { GETPID, "GETPID" }, 95 { GETVAL, "GETVAL" }, 96 { GETALL, "GETALL" }, 97 { GETNCNT, "GETNCNT" }, 98 { GETZCNT, "GETZCNT" }, 99 { SETVAL, "SETVAL" }, 100 { SETALL, "SETALL" }, 101 { 0, NULL }, 102 }; 103 104 static const struct xlat shmctl_flags[] = { 105 { IPC_RMID, "IPC_RMID" }, 106 { IPC_SET, "IPC_SET" }, 107 { IPC_STAT, "IPC_STAT" }, 108 #ifdef LINUX 109 { IPC_INFO, "IPC_INFO" }, 110 { SHM_STAT, "SHM_STAT" }, 111 { SHM_INFO, "SHM_INFO" }, 112 #endif /* LINUX */ 113 #ifdef SHM_LOCK 114 { SHM_LOCK, "SHM_LOCK" }, 115 #endif 116 #ifdef SHM_UNLOCK 117 { SHM_UNLOCK, "SHM_UNLOCK" }, 118 #endif 119 { 0, NULL }, 120 }; 121 122 static const struct xlat resource_flags[] = { 123 { IPC_CREAT, "IPC_CREAT" }, 124 { IPC_EXCL, "IPC_EXCL" }, 125 { IPC_NOWAIT, "IPC_NOWAIT" }, 126 { 0, NULL }, 127 }; 128 129 static const struct xlat shm_resource_flags[] = { 130 { IPC_CREAT, "IPC_CREAT" }, 131 { IPC_EXCL, "IPC_EXCL" }, 132 #ifdef SHM_HUGETLB 133 { SHM_HUGETLB, "SHM_HUGETLB" }, 134 #endif 135 { 0, NULL }, 136 }; 137 138 static const struct xlat shm_flags[] = { 139 #ifdef LINUX 140 { SHM_REMAP, "SHM_REMAP" }, 141 #endif /* LINUX */ 142 { SHM_RDONLY, "SHM_RDONLY" }, 143 { SHM_RND, "SHM_RND" }, 144 { 0, NULL }, 145 }; 146 147 static const struct xlat msg_flags[] = { 148 { MSG_NOERROR, "MSG_NOERROR" }, 149 #ifdef LINUX 150 { MSG_EXCEPT, "MSG_EXCEPT" }, 151 #endif /* LINUX */ 152 { IPC_NOWAIT, "IPC_NOWAIT" }, 153 { 0, NULL }, 154 }; 155 156 int sys_msgget(tcp) 157 struct tcb *tcp; 158 { 159 if (entering(tcp)) { 160 if (tcp->u_arg[0]) 161 tprintf("%lu", tcp->u_arg[0]); 162 else 163 tprintf("IPC_PRIVATE"); 164 tprintf(", "); 165 if (printflags(resource_flags, tcp->u_arg[1] & ~0777, NULL) != 0) 166 tprintf("|"); 167 tprintf("%#lo", tcp->u_arg[1] & 0777); 168 } 169 return 0; 170 } 171 172 #ifdef IPC_64 173 # define PRINTCTL(flagset, arg, dflt) \ 174 if ((arg) & IPC_64) tprintf("IPC_64|"); \ 175 printxval((flagset), (arg) &~ IPC_64, dflt) 176 #else 177 # define PRINTCTL printxval 178 #endif 179 180 int sys_msgctl(tcp) 181 struct tcb *tcp; 182 { 183 if (entering(tcp)) { 184 tprintf("%lu, ", tcp->u_arg[0]); 185 PRINTCTL(msgctl_flags, tcp->u_arg[1], "MSG_???"); 186 #ifdef LINUX 187 tprintf(", %#lx", tcp->u_arg[3]); 188 #else /* !LINUX */ 189 tprintf(", %#lx", tcp->u_arg[2]); 190 #endif /* !LINUX */ 191 } 192 return 0; 193 } 194 195 int sys_msgsnd(tcp) 196 struct tcb *tcp; 197 { 198 long mtype; 199 200 if (entering(tcp)) { 201 tprintf("%lu", tcp->u_arg[0]); 202 #ifdef LINUX 203 umove(tcp, tcp->u_arg[3], &mtype); 204 tprintf(", {%lu, ", mtype); 205 printstr(tcp, tcp->u_arg[3] + sizeof(long), 206 tcp->u_arg[1]); 207 tprintf("}, %lu", tcp->u_arg[1]); 208 tprintf(", "); 209 printflags(msg_flags, tcp->u_arg[2], "MSG_???"); 210 #else /* !LINUX */ 211 umove(tcp, tcp->u_arg[1], &mtype); 212 tprintf(", {%lu, ", mtype); 213 printstr(tcp, tcp->u_arg[1] + sizeof(long), 214 tcp->u_arg[2]); 215 tprintf("}, %lu", tcp->u_arg[2]); 216 tprintf(", "); 217 printflags(msg_flags, tcp->u_arg[3], "MSG_???"); 218 #endif /* !LINUX */ 219 } 220 return 0; 221 } 222 223 int sys_msgrcv(tcp) 224 struct tcb *tcp; 225 { 226 long mtype; 227 #ifdef LINUX 228 struct ipc_wrapper { 229 struct msgbuf *msgp; 230 long msgtyp; 231 } tmp; 232 #endif 233 234 235 if (exiting(tcp)) { 236 tprintf("%lu", tcp->u_arg[0]); 237 #ifdef LINUX 238 umove(tcp, tcp->u_arg[3], &tmp); 239 umove(tcp, (long) tmp.msgp, &mtype); 240 tprintf(", {%lu, ", mtype); 241 printstr(tcp, (long) (tmp.msgp) + sizeof(long), 242 tcp->u_arg[1]); 243 tprintf("}, %lu", tcp->u_arg[1]); 244 tprintf(", %ld", tmp.msgtyp); 245 tprintf(", "); 246 printflags(msg_flags, tcp->u_arg[2], "MSG_???"); 247 #else /* !LINUX */ 248 umove(tcp, tcp->u_arg[1], &mtype); 249 tprintf(", {%lu, ", mtype); 250 printstr(tcp, tcp->u_arg[1] + sizeof(long), 251 tcp->u_arg[2]); 252 tprintf("}, %lu", tcp->u_arg[2]); 253 tprintf(", %ld", tcp->u_arg[3]); 254 tprintf(", "); 255 printflags(msg_flags, tcp->u_arg[4], "MSG_???"); 256 #endif /* !LINUX */ 257 } 258 return 0; 259 } 260 261 int sys_semop(tcp) 262 struct tcb *tcp; 263 { 264 if (entering(tcp)) { 265 tprintf("%lu", tcp->u_arg[0]); 266 #ifdef LINUX 267 tprintf(", %#lx", tcp->u_arg[3]); 268 tprintf(", %lu", tcp->u_arg[1]); 269 #else /* !LINUX */ 270 tprintf(", %#lx", tcp->u_arg[1]); 271 tprintf(", %lu", tcp->u_arg[2]); 272 #endif /* !LINUX */ 273 } 274 return 0; 275 } 276 277 #ifdef LINUX 278 int sys_semtimedop(tcp) 279 struct tcb *tcp; 280 { 281 if (entering(tcp)) { 282 tprintf("%lu", tcp->u_arg[0]); 283 tprintf(", %#lx", tcp->u_arg[3]); 284 tprintf(", %lu, ", tcp->u_arg[1]); 285 printtv(tcp, tcp->u_arg[5]); 286 } 287 return 0; 288 } 289 #endif 290 291 int sys_semget(tcp) 292 struct tcb *tcp; 293 { 294 if (entering(tcp)) { 295 if (tcp->u_arg[0]) 296 tprintf("%lu", tcp->u_arg[0]); 297 else 298 tprintf("IPC_PRIVATE"); 299 tprintf(", %lu", tcp->u_arg[1]); 300 tprintf(", "); 301 if (printflags(resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0) 302 tprintf("|"); 303 tprintf("%#lo", tcp->u_arg[2] & 0777); 304 } 305 return 0; 306 } 307 308 int sys_semctl(tcp) 309 struct tcb *tcp; 310 { 311 if (entering(tcp)) { 312 tprintf("%lu", tcp->u_arg[0]); 313 tprintf(", %lu, ", tcp->u_arg[1]); 314 PRINTCTL(semctl_flags, tcp->u_arg[2], "SEM_???"); 315 tprintf(", %#lx", tcp->u_arg[3]); 316 } 317 return 0; 318 } 319 320 int sys_shmget(tcp) 321 struct tcb *tcp; 322 { 323 if (entering(tcp)) { 324 if (tcp->u_arg[0]) 325 tprintf("%lu", tcp->u_arg[0]); 326 else 327 tprintf("IPC_PRIVATE"); 328 tprintf(", %lu", tcp->u_arg[1]); 329 tprintf(", "); 330 if (printflags(shm_resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0) 331 tprintf("|"); 332 tprintf("%#lo", tcp->u_arg[2] & 0777); 333 } 334 return 0; 335 } 336 337 int sys_shmctl(tcp) 338 struct tcb *tcp; 339 { 340 if (entering(tcp)) { 341 tprintf("%lu, ", tcp->u_arg[0]); 342 PRINTCTL(shmctl_flags, tcp->u_arg[1], "SHM_???"); 343 #ifdef LINUX 344 tprintf(", %#lx", tcp->u_arg[3]); 345 #else /* !LINUX */ 346 tprintf(", %#lx", tcp->u_arg[2]); 347 #endif /* !LINUX */ 348 } 349 return 0; 350 } 351 352 int sys_shmat(tcp) 353 struct tcb *tcp; 354 { 355 #ifdef LINUX 356 unsigned long raddr; 357 #endif /* LINUX */ 358 359 if (exiting(tcp)) { 360 tprintf("%lu", tcp->u_arg[0]); 361 #ifdef LINUX 362 tprintf(", %#lx", tcp->u_arg[3]); 363 tprintf(", "); 364 printflags(shm_flags, tcp->u_arg[1], "SHM_???"); 365 #else /* !LINUX */ 366 tprintf(", %#lx", tcp->u_arg[1]); 367 tprintf(", "); 368 printflags(shm_flags, tcp->u_arg[2], "SHM_???"); 369 #endif /* !LINUX */ 370 if (syserror(tcp)) 371 return 0; 372 #ifdef LINUX 373 if (umove(tcp, tcp->u_arg[2], &raddr) < 0) 374 return RVAL_NONE; 375 tcp->u_rval = raddr; 376 #endif /* LINUX */ 377 return RVAL_HEX; 378 } 379 return 0; 380 } 381 382 int sys_shmdt(tcp) 383 struct tcb *tcp; 384 { 385 if (entering(tcp)) 386 #ifdef LINUX 387 tprintf("%#lx", tcp->u_arg[3]); 388 #else /* !LINUX */ 389 tprintf("%#lx", tcp->u_arg[0]); 390 #endif /* !LINUX */ 391 return 0; 392 } 393 394 #endif /* defined(LINUX) || defined(SUNOS4) || defined(FREEBSD) */ 395 396 #ifdef LINUX 397 int sys_mq_open(tcp) 398 struct tcb *tcp; 399 { 400 if (entering(tcp)) { 401 printpath(tcp, tcp->u_arg[0]); 402 tprintf(", "); 403 /* flags */ 404 printflags(openmodes, tcp->u_arg[1] + 1, "O_???"); 405 if (tcp->u_arg[1] & O_CREAT) { 406 # ifndef HAVE_MQUEUE_H 407 tprintf(", %lx", tcp->u_arg[2]); 408 # else 409 struct mq_attr attr; 410 /* mode */ 411 tprintf(", %#lo, ", tcp->u_arg[2]); 412 if (umove(tcp, tcp->u_arg[3], &attr) < 0) 413 tprintf("{ ??? }"); 414 else 415 tprintf("{mq_maxmsg=%ld, mq_msgsize=%ld}", 416 attr.mq_maxmsg, attr.mq_msgsize); 417 # endif 418 } 419 } 420 return 0; 421 } 422 423 int sys_mq_timedsend(tcp) 424 struct tcb *tcp; 425 { 426 if (entering(tcp)) { 427 tprintf("%ld, ", tcp->u_arg[0]); 428 printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]); 429 tprintf(", %lu, %ld, ", tcp->u_arg[2], tcp->u_arg[3]); 430 printtv(tcp, tcp->u_arg[4]); 431 } 432 return 0; 433 } 434 435 int sys_mq_timedreceive(tcp) 436 struct tcb *tcp; 437 { 438 if (entering(tcp)) 439 tprintf("%ld, ", tcp->u_arg[0]); 440 else { 441 printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]); 442 tprintf(", %lu, %ld, ", tcp->u_arg[2], tcp->u_arg[3]); 443 printtv(tcp, tcp->u_arg[4]); 444 } 445 return 0; 446 } 447 448 int sys_mq_notify(tcp) 449 struct tcb *tcp; 450 { 451 if (entering(tcp)) { 452 tprintf("%ld, ", tcp->u_arg[0]); 453 printsigevent(tcp, tcp->u_arg[1]); 454 } 455 return 0; 456 } 457 458 static void printmqattr(tcp, addr) 459 struct tcb *tcp; 460 long addr; 461 { 462 if (addr == 0) 463 tprintf("NULL"); 464 else { 465 # ifndef HAVE_MQUEUE_H 466 tprintf("%#lx", addr); 467 # else 468 struct mq_attr attr; 469 if (umove(tcp, addr, &attr) < 0) { 470 tprintf("{...}"); 471 return; 472 } 473 tprintf("{mq_flags="); 474 printflags(openmodes, attr.mq_flags + 1, "O_???"); 475 tprintf(", mq_maxmsg=%ld, mq_msgsize=%ld, mq_curmsg=%ld}", 476 attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs); 477 # endif 478 } 479 } 480 481 int sys_mq_getsetattr(tcp) 482 struct tcb *tcp; 483 { 484 if (entering(tcp)) { 485 tprintf("%ld, ", tcp->u_arg[0]); 486 printmqattr(tcp, tcp->u_arg[1]); 487 tprintf(", "); 488 } else 489 printmqattr(tcp, tcp->u_arg[2]); 490 return 0; 491 } 492 #endif 493
