1 /* 2 * 32 bit compatibility code for System V IPC 3 * 4 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) 5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) 6 * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> 7 * Copyright (C) 2000 VA Linux Co 8 * Copyright (C) 2000 Don Dugger <n0ano@valinux.com> 9 * Copyright (C) 2000 Hewlett-Packard Co. 10 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com> 11 * Copyright (C) 2000 Gerhard Tonn (ton@de.ibm.com) 12 * Copyright (C) 2000-2002 Andi Kleen, SuSE Labs (x86-64 port) 13 * Copyright (C) 2000 Silicon Graphics, Inc. 14 * Copyright (C) 2001 IBM 15 * Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation 16 * Copyright (C) 2004 Arnd Bergmann (arnd@arndb.de) 17 * 18 * This code is collected from the versions for sparc64, mips64, s390x, ia64, 19 * ppc64 and x86_64, all of which are based on the original sparc64 version 20 * by Jakub Jelinek. 21 * 22 */ 23 #include <linux/compat.h> 24 #include <linux/errno.h> 25 #include <linux/highuid.h> 26 #include <linux/init.h> 27 #include <linux/msg.h> 28 #include <linux/shm.h> 29 #include <linux/syscalls.h> 30 31 #include <linux/mutex.h> 32 #include <asm/uaccess.h> 33 34 #include "util.h" 35 36 struct compat_msgbuf { 37 compat_long_t mtype; 38 char mtext[1]; 39 }; 40 41 struct compat_ipc_perm { 42 key_t key; 43 __compat_uid_t uid; 44 __compat_gid_t gid; 45 __compat_uid_t cuid; 46 __compat_gid_t cgid; 47 compat_mode_t mode; 48 unsigned short seq; 49 }; 50 51 struct compat_semid_ds { 52 struct compat_ipc_perm sem_perm; 53 compat_time_t sem_otime; 54 compat_time_t sem_ctime; 55 compat_uptr_t sem_base; 56 compat_uptr_t sem_pending; 57 compat_uptr_t sem_pending_last; 58 compat_uptr_t undo; 59 unsigned short sem_nsems; 60 }; 61 62 struct compat_msqid_ds { 63 struct compat_ipc_perm msg_perm; 64 compat_uptr_t msg_first; 65 compat_uptr_t msg_last; 66 compat_time_t msg_stime; 67 compat_time_t msg_rtime; 68 compat_time_t msg_ctime; 69 compat_ulong_t msg_lcbytes; 70 compat_ulong_t msg_lqbytes; 71 unsigned short msg_cbytes; 72 unsigned short msg_qnum; 73 unsigned short msg_qbytes; 74 compat_ipc_pid_t msg_lspid; 75 compat_ipc_pid_t msg_lrpid; 76 }; 77 78 struct compat_shmid_ds { 79 struct compat_ipc_perm shm_perm; 80 int shm_segsz; 81 compat_time_t shm_atime; 82 compat_time_t shm_dtime; 83 compat_time_t shm_ctime; 84 compat_ipc_pid_t shm_cpid; 85 compat_ipc_pid_t shm_lpid; 86 unsigned short shm_nattch; 87 unsigned short shm_unused; 88 compat_uptr_t shm_unused2; 89 compat_uptr_t shm_unused3; 90 }; 91 92 struct compat_ipc_kludge { 93 compat_uptr_t msgp; 94 compat_long_t msgtyp; 95 }; 96 97 struct compat_shminfo64 { 98 compat_ulong_t shmmax; 99 compat_ulong_t shmmin; 100 compat_ulong_t shmmni; 101 compat_ulong_t shmseg; 102 compat_ulong_t shmall; 103 compat_ulong_t __unused1; 104 compat_ulong_t __unused2; 105 compat_ulong_t __unused3; 106 compat_ulong_t __unused4; 107 }; 108 109 struct compat_shm_info { 110 compat_int_t used_ids; 111 compat_ulong_t shm_tot, shm_rss, shm_swp; 112 compat_ulong_t swap_attempts, swap_successes; 113 }; 114 115 extern int sem_ctls[]; 116 #define sc_semopm (sem_ctls[2]) 117 118 static inline int compat_ipc_parse_version(int *cmd) 119 { 120 int version = *cmd & IPC_64; 121 122 /* this is tricky: architectures that have support for the old 123 * ipc structures in 64 bit binaries need to have IPC_64 set 124 * in cmd, the others need to have it cleared */ 125 #ifndef ipc_parse_version 126 *cmd |= IPC_64; 127 #else 128 *cmd &= ~IPC_64; 129 #endif 130 return version; 131 } 132 133 static inline int __get_compat_ipc64_perm(struct ipc64_perm *p64, 134 struct compat_ipc64_perm __user *up64) 135 { 136 int err; 137 138 err = __get_user(p64->uid, &up64->uid); 139 err |= __get_user(p64->gid, &up64->gid); 140 err |= __get_user(p64->mode, &up64->mode); 141 return err; 142 } 143 144 static inline int __get_compat_ipc_perm(struct ipc64_perm *p, 145 struct compat_ipc_perm __user *up) 146 { 147 int err; 148 149 err = __get_user(p->uid, &up->uid); 150 err |= __get_user(p->gid, &up->gid); 151 err |= __get_user(p->mode, &up->mode); 152 return err; 153 } 154 155 static inline int __put_compat_ipc64_perm(struct ipc64_perm *p64, 156 struct compat_ipc64_perm __user *up64) 157 { 158 int err; 159 160 err = __put_user(p64->key, &up64->key); 161 err |= __put_user(p64->uid, &up64->uid); 162 err |= __put_user(p64->gid, &up64->gid); 163 err |= __put_user(p64->cuid, &up64->cuid); 164 err |= __put_user(p64->cgid, &up64->cgid); 165 err |= __put_user(p64->mode, &up64->mode); 166 err |= __put_user(p64->seq, &up64->seq); 167 return err; 168 } 169 170 static inline int __put_compat_ipc_perm(struct ipc64_perm *p, 171 struct compat_ipc_perm __user *up) 172 { 173 int err; 174 __compat_uid_t u; 175 __compat_gid_t g; 176 177 err = __put_user(p->key, &up->key); 178 SET_UID(u, p->uid); 179 err |= __put_user(u, &up->uid); 180 SET_GID(g, p->gid); 181 err |= __put_user(g, &up->gid); 182 SET_UID(u, p->cuid); 183 err |= __put_user(u, &up->cuid); 184 SET_GID(g, p->cgid); 185 err |= __put_user(g, &up->cgid); 186 err |= __put_user(p->mode, &up->mode); 187 err |= __put_user(p->seq, &up->seq); 188 return err; 189 } 190 191 static inline int get_compat_semid64_ds(struct semid64_ds *s64, 192 struct compat_semid64_ds __user *up64) 193 { 194 if (!access_ok (VERIFY_READ, up64, sizeof(*up64))) 195 return -EFAULT; 196 return __get_compat_ipc64_perm(&s64->sem_perm, &up64->sem_perm); 197 } 198 199 static inline int get_compat_semid_ds(struct semid64_ds *s, 200 struct compat_semid_ds __user *up) 201 { 202 if (!access_ok (VERIFY_READ, up, sizeof(*up))) 203 return -EFAULT; 204 return __get_compat_ipc_perm(&s->sem_perm, &up->sem_perm); 205 } 206 207 static inline int put_compat_semid64_ds(struct semid64_ds *s64, 208 struct compat_semid64_ds __user *up64) 209 { 210 int err; 211 212 if (!access_ok (VERIFY_WRITE, up64, sizeof(*up64))) 213 return -EFAULT; 214 err = __put_compat_ipc64_perm(&s64->sem_perm, &up64->sem_perm); 215 err |= __put_user(s64->sem_otime, &up64->sem_otime); 216 err |= __put_user(s64->sem_ctime, &up64->sem_ctime); 217 err |= __put_user(s64->sem_nsems, &up64->sem_nsems); 218 return err; 219 } 220 221 static inline int put_compat_semid_ds(struct semid64_ds *s, 222 struct compat_semid_ds __user *up) 223 { 224 int err; 225 226 if (!access_ok (VERIFY_WRITE, up, sizeof(*up))) 227 return -EFAULT; 228 err = __put_compat_ipc_perm(&s->sem_perm, &up->sem_perm); 229 err |= __put_user(s->sem_otime, &up->sem_otime); 230 err |= __put_user(s->sem_ctime, &up->sem_ctime); 231 err |= __put_user(s->sem_nsems, &up->sem_nsems); 232 return err; 233 } 234 235 long compat_sys_semctl(int first, int second, int third, void __user *uptr) 236 { 237 union semun fourth; 238 u32 pad; 239 int err, err2; 240 struct semid64_ds s64; 241 struct semid64_ds __user *up64; 242 int version = compat_ipc_parse_version(&third); 243 244 memset(&s64, 0, sizeof(s64)); 245 246 if (!uptr) 247 return -EINVAL; 248 if (get_user(pad, (u32 __user *) uptr)) 249 return -EFAULT; 250 if ((third & (~IPC_64)) == SETVAL) 251 fourth.val = (int) pad; 252 else 253 fourth.__pad = compat_ptr(pad); 254 switch (third & (~IPC_64)) { 255 case IPC_INFO: 256 case IPC_RMID: 257 case SEM_INFO: 258 case GETVAL: 259 case GETPID: 260 case GETNCNT: 261 case GETZCNT: 262 case GETALL: 263 case SETVAL: 264 case SETALL: 265 err = sys_semctl(first, second, third, fourth); 266 break; 267 268 case IPC_STAT: 269 case SEM_STAT: 270 up64 = compat_alloc_user_space(sizeof(s64)); 271 fourth.__pad = up64; 272 err = sys_semctl(first, second, third, fourth); 273 if (err < 0) 274 break; 275 if (copy_from_user(&s64, up64, sizeof(s64))) 276 err2 = -EFAULT; 277 else if (version == IPC_64) 278 err2 = put_compat_semid64_ds(&s64, compat_ptr(pad)); 279 else 280 err2 = put_compat_semid_ds(&s64, compat_ptr(pad)); 281 if (err2) 282 err = -EFAULT; 283 break; 284 285 case IPC_SET: 286 if (version == IPC_64) { 287 err = get_compat_semid64_ds(&s64, compat_ptr(pad)); 288 } else { 289 err = get_compat_semid_ds(&s64, compat_ptr(pad)); 290 } 291 up64 = compat_alloc_user_space(sizeof(s64)); 292 if (copy_to_user(up64, &s64, sizeof(s64))) 293 err = -EFAULT; 294 if (err) 295 break; 296 297 fourth.__pad = up64; 298 err = sys_semctl(first, second, third, fourth); 299 break; 300 301 default: 302 err = -EINVAL; 303 break; 304 } 305 return err; 306 } 307 308 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr) 309 { 310 struct compat_msgbuf __user *up = uptr; 311 long type; 312 313 if (first < 0) 314 return -EINVAL; 315 if (second < 0) 316 return -EINVAL; 317 318 if (get_user(type, &up->mtype)) 319 return -EFAULT; 320 321 return do_msgsnd(first, type, up->mtext, second, third); 322 } 323 324 long compat_sys_msgrcv(int first, int second, int msgtyp, int third, 325 int version, void __user *uptr) 326 { 327 struct compat_msgbuf __user *up; 328 long type; 329 int err; 330 331 if (first < 0) 332 return -EINVAL; 333 if (second < 0) 334 return -EINVAL; 335 336 if (!version) { 337 struct compat_ipc_kludge ipck; 338 err = -EINVAL; 339 if (!uptr) 340 goto out; 341 err = -EFAULT; 342 if (copy_from_user (&ipck, uptr, sizeof(ipck))) 343 goto out; 344 uptr = compat_ptr(ipck.msgp); 345 msgtyp = ipck.msgtyp; 346 } 347 up = uptr; 348 err = do_msgrcv(first, &type, up->mtext, second, msgtyp, third); 349 if (err < 0) 350 goto out; 351 if (put_user(type, &up->mtype)) 352 err = -EFAULT; 353 out: 354 return err; 355 } 356 357 static inline int get_compat_msqid64(struct msqid64_ds *m64, 358 struct compat_msqid64_ds __user *up64) 359 { 360 int err; 361 362 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) 363 return -EFAULT; 364 err = __get_compat_ipc64_perm(&m64->msg_perm, &up64->msg_perm); 365 err |= __get_user(m64->msg_qbytes, &up64->msg_qbytes); 366 return err; 367 } 368 369 static inline int get_compat_msqid(struct msqid64_ds *m, 370 struct compat_msqid_ds __user *up) 371 { 372 int err; 373 374 if (!access_ok(VERIFY_READ, up, sizeof(*up))) 375 return -EFAULT; 376 err = __get_compat_ipc_perm(&m->msg_perm, &up->msg_perm); 377 err |= __get_user(m->msg_qbytes, &up->msg_qbytes); 378 return err; 379 } 380 381 static inline int put_compat_msqid64_ds(struct msqid64_ds *m64, 382 struct compat_msqid64_ds __user *up64) 383 { 384 int err; 385 386 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) 387 return -EFAULT; 388 err = __put_compat_ipc64_perm(&m64->msg_perm, &up64->msg_perm); 389 err |= __put_user(m64->msg_stime, &up64->msg_stime); 390 err |= __put_user(m64->msg_rtime, &up64->msg_rtime); 391 err |= __put_user(m64->msg_ctime, &up64->msg_ctime); 392 err |= __put_user(m64->msg_cbytes, &up64->msg_cbytes); 393 err |= __put_user(m64->msg_qnum, &up64->msg_qnum); 394 err |= __put_user(m64->msg_qbytes, &up64->msg_qbytes); 395 err |= __put_user(m64->msg_lspid, &up64->msg_lspid); 396 err |= __put_user(m64->msg_lrpid, &up64->msg_lrpid); 397 return err; 398 } 399 400 static inline int put_compat_msqid_ds(struct msqid64_ds *m, 401 struct compat_msqid_ds __user *up) 402 { 403 int err; 404 405 if (!access_ok(VERIFY_WRITE, up, sizeof(*up))) 406 return -EFAULT; 407 err = __put_compat_ipc_perm(&m->msg_perm, &up->msg_perm); 408 err |= __put_user(m->msg_stime, &up->msg_stime); 409 err |= __put_user(m->msg_rtime, &up->msg_rtime); 410 err |= __put_user(m->msg_ctime, &up->msg_ctime); 411 err |= __put_user(m->msg_cbytes, &up->msg_cbytes); 412 err |= __put_user(m->msg_qnum, &up->msg_qnum); 413 err |= __put_user(m->msg_qbytes, &up->msg_qbytes); 414 err |= __put_user(m->msg_lspid, &up->msg_lspid); 415 err |= __put_user(m->msg_lrpid, &up->msg_lrpid); 416 return err; 417 } 418 419 long compat_sys_msgctl(int first, int second, void __user *uptr) 420 { 421 int err, err2; 422 struct msqid64_ds m64; 423 int version = compat_ipc_parse_version(&second); 424 void __user *p; 425 426 memset(&m64, 0, sizeof(m64)); 427 428 switch (second & (~IPC_64)) { 429 case IPC_INFO: 430 case IPC_RMID: 431 case MSG_INFO: 432 err = sys_msgctl(first, second, uptr); 433 break; 434 435 case IPC_SET: 436 if (version == IPC_64) { 437 err = get_compat_msqid64(&m64, uptr); 438 } else { 439 err = get_compat_msqid(&m64, uptr); 440 } 441 if (err) 442 break; 443 p = compat_alloc_user_space(sizeof(m64)); 444 if (copy_to_user(p, &m64, sizeof(m64))) 445 err = -EFAULT; 446 else 447 err = sys_msgctl(first, second, p); 448 break; 449 450 case IPC_STAT: 451 case MSG_STAT: 452 p = compat_alloc_user_space(sizeof(m64)); 453 err = sys_msgctl(first, second, p); 454 if (err < 0) 455 break; 456 if (copy_from_user(&m64, p, sizeof(m64))) 457 err2 = -EFAULT; 458 else if (version == IPC_64) 459 err2 = put_compat_msqid64_ds(&m64, uptr); 460 else 461 err2 = put_compat_msqid_ds(&m64, uptr); 462 if (err2) 463 err = -EFAULT; 464 break; 465 466 default: 467 err = -EINVAL; 468 break; 469 } 470 return err; 471 } 472 473 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, 474 void __user *uptr) 475 { 476 int err; 477 unsigned long raddr; 478 compat_ulong_t __user *uaddr; 479 480 if (version == 1) 481 return -EINVAL; 482 err = do_shmat(first, uptr, second, &raddr); 483 if (err < 0) 484 return err; 485 uaddr = compat_ptr(third); 486 return put_user(raddr, uaddr); 487 } 488 489 static inline int get_compat_shmid64_ds(struct shmid64_ds *s64, 490 struct compat_shmid64_ds __user *up64) 491 { 492 if (!access_ok(VERIFY_READ, up64, sizeof(*up64))) 493 return -EFAULT; 494 return __get_compat_ipc64_perm(&s64->shm_perm, &up64->shm_perm); 495 } 496 497 static inline int get_compat_shmid_ds(struct shmid64_ds *s, 498 struct compat_shmid_ds __user *up) 499 { 500 if (!access_ok(VERIFY_READ, up, sizeof(*up))) 501 return -EFAULT; 502 return __get_compat_ipc_perm(&s->shm_perm, &up->shm_perm); 503 } 504 505 static inline int put_compat_shmid64_ds(struct shmid64_ds *s64, 506 struct compat_shmid64_ds __user *up64) 507 { 508 int err; 509 510 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) 511 return -EFAULT; 512 err = __put_compat_ipc64_perm(&s64->shm_perm, &up64->shm_perm); 513 err |= __put_user(s64->shm_atime, &up64->shm_atime); 514 err |= __put_user(s64->shm_dtime, &up64->shm_dtime); 515 err |= __put_user(s64->shm_ctime, &up64->shm_ctime); 516 err |= __put_user(s64->shm_segsz, &up64->shm_segsz); 517 err |= __put_user(s64->shm_nattch, &up64->shm_nattch); 518 err |= __put_user(s64->shm_cpid, &up64->shm_cpid); 519 err |= __put_user(s64->shm_lpid, &up64->shm_lpid); 520 return err; 521 } 522 523 static inline int put_compat_shmid_ds(struct shmid64_ds *s, 524 struct compat_shmid_ds __user *up) 525 { 526 int err; 527 528 if (!access_ok(VERIFY_WRITE, up, sizeof(*up))) 529 return -EFAULT; 530 err = __put_compat_ipc_perm(&s->shm_perm, &up->shm_perm); 531 err |= __put_user(s->shm_atime, &up->shm_atime); 532 err |= __put_user(s->shm_dtime, &up->shm_dtime); 533 err |= __put_user(s->shm_ctime, &up->shm_ctime); 534 err |= __put_user(s->shm_segsz, &up->shm_segsz); 535 err |= __put_user(s->shm_nattch, &up->shm_nattch); 536 err |= __put_user(s->shm_cpid, &up->shm_cpid); 537 err |= __put_user(s->shm_lpid, &up->shm_lpid); 538 return err; 539 } 540 541 static inline int put_compat_shminfo64(struct shminfo64 *smi, 542 struct compat_shminfo64 __user *up64) 543 { 544 int err; 545 546 if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64))) 547 return -EFAULT; 548 if (smi->shmmax > INT_MAX) 549 smi->shmmax = INT_MAX; 550 err = __put_user(smi->shmmax, &up64->shmmax); 551 err |= __put_user(smi->shmmin, &up64->shmmin); 552 err |= __put_user(smi->shmmni, &up64->shmmni); 553 err |= __put_user(smi->shmseg, &up64->shmseg); 554 err |= __put_user(smi->shmall, &up64->shmall); 555 return err; 556 } 557 558 static inline int put_compat_shminfo(struct shminfo64 *smi, 559 struct shminfo __user *up) 560 { 561 int err; 562 563 if (!access_ok(VERIFY_WRITE, up, sizeof(*up))) 564 return -EFAULT; 565 if (smi->shmmax > INT_MAX) 566 smi->shmmax = INT_MAX; 567 err = __put_user(smi->shmmax, &up->shmmax); 568 err |= __put_user(smi->shmmin, &up->shmmin); 569 err |= __put_user(smi->shmmni, &up->shmmni); 570 err |= __put_user(smi->shmseg, &up->shmseg); 571 err |= __put_user(smi->shmall, &up->shmall); 572 return err; 573 } 574 575 static inline int put_compat_shm_info(struct shm_info __user *ip, 576 struct compat_shm_info __user *uip) 577 { 578 int err; 579 struct shm_info si; 580 581 if (!access_ok(VERIFY_WRITE, uip, sizeof(*uip)) || 582 copy_from_user(&si, ip, sizeof(si))) 583 return -EFAULT; 584 err = __put_user(si.used_ids, &uip->used_ids); 585 err |= __put_user(si.shm_tot, &uip->shm_tot); 586 err |= __put_user(si.shm_rss, &uip->shm_rss); 587 err |= __put_user(si.shm_swp, &uip->shm_swp); 588 err |= __put_user(si.swap_attempts, &uip->swap_attempts); 589 err |= __put_user(si.swap_successes, &uip->swap_successes); 590 return err; 591 } 592 593 long compat_sys_shmctl(int first, int second, void __user *uptr) 594 { 595 void __user *p; 596 struct shmid64_ds s64; 597 struct shminfo64 smi; 598 int err, err2; 599 int version = compat_ipc_parse_version(&second); 600 601 memset(&s64, 0, sizeof(s64)); 602 603 switch (second & (~IPC_64)) { 604 case IPC_RMID: 605 case SHM_LOCK: 606 case SHM_UNLOCK: 607 err = sys_shmctl(first, second, uptr); 608 break; 609 610 case IPC_INFO: 611 p = compat_alloc_user_space(sizeof(smi)); 612 err = sys_shmctl(first, second, p); 613 if (err < 0) 614 break; 615 if (copy_from_user(&smi, p, sizeof(smi))) 616 err2 = -EFAULT; 617 else if (version == IPC_64) 618 err2 = put_compat_shminfo64(&smi, uptr); 619 else 620 err2 = put_compat_shminfo(&smi, uptr); 621 if (err2) 622 err = -EFAULT; 623 break; 624 625 626 case IPC_SET: 627 if (version == IPC_64) { 628 err = get_compat_shmid64_ds(&s64, uptr); 629 } else { 630 err = get_compat_shmid_ds(&s64, uptr); 631 } 632 if (err) 633 break; 634 p = compat_alloc_user_space(sizeof(s64)); 635 if (copy_to_user(p, &s64, sizeof(s64))) 636 err = -EFAULT; 637 else 638 err = sys_shmctl(first, second, p); 639 break; 640 641 case IPC_STAT: 642 case SHM_STAT: 643 p = compat_alloc_user_space(sizeof(s64)); 644 err = sys_shmctl(first, second, p); 645 if (err < 0) 646 break; 647 if (copy_from_user(&s64, p, sizeof(s64))) 648 err2 = -EFAULT; 649 else if (version == IPC_64) 650 err2 = put_compat_shmid64_ds(&s64, uptr); 651 else 652 err2 = put_compat_shmid_ds(&s64, uptr); 653 if (err2) 654 err = -EFAULT; 655 break; 656 657 case SHM_INFO: 658 p = compat_alloc_user_space(sizeof(struct shm_info)); 659 err = sys_shmctl(first, second, p); 660 if (err < 0) 661 break; 662 err2 = put_compat_shm_info(p, uptr); 663 if (err2) 664 err = -EFAULT; 665 break; 666 667 default: 668 err = -EINVAL; 669 break; 670 } 671 return err; 672 } 673 674 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, 675 unsigned nsops, const struct compat_timespec __user *timeout) 676 { 677 struct timespec __user *ts64 = NULL; 678 if (timeout) { 679 struct timespec ts; 680 ts64 = compat_alloc_user_space(sizeof(*ts64)); 681 if (get_compat_timespec(&ts, timeout)) 682 return -EFAULT; 683 if (copy_to_user(ts64, &ts, sizeof(ts))) 684 return -EFAULT; 685 } 686 return sys_semtimedop(semid, tsems, nsops, ts64); 687 } 688