filemon_wrapper.c revision 253977
1/*- 2 * Copyright (c) 2011, David E. O'Brien. 3 * Copyright (c) 2009-2011, Juniper Networks, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY JUNIPER NETWORKS AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL JUNIPER NETWORKS OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/dev/filemon/filemon_wrapper.c 253977 2013-08-06 02:14:30Z hrs $"); 30 31#include "opt_compat.h" 32 33#if __FreeBSD_version > 800032 34#define FILEMON_HAS_LINKAT 35#endif 36 37#if __FreeBSD_version < 900044 /* r225617 (2011-09-16) failed to bump 38 __FreeBSD_version. This really should 39 be based on "900045". "900044" is r225469 40 (2011-09-10) so this code is broken for 41 9-CURRENT September 10th-16th. */ 42#define sys_chdir chdir 43#define sys_execve execve 44#define sys_fork fork 45#define sys_link link 46#define sys_open open 47#define sys_rename rename 48#define sys_stat stat 49#define sys_symlink symlink 50#define sys_unlink unlink 51#define sys_vfork vfork 52#define sys_sys_exit sys_exit 53#ifdef FILEMON_HAS_LINKAT 54#define sys_linkat linkat 55#endif 56#endif /* __FreeBSD_version */ 57 58static void 59filemon_output(struct filemon *filemon, char *msg, size_t len) 60{ 61 struct uio auio; 62 struct iovec aiov; 63 64 if (filemon->fp == NULL) 65 return; 66 67 aiov.iov_base = msg; 68 aiov.iov_len = len; 69 auio.uio_iov = &aiov; 70 auio.uio_iovcnt = 1; 71 auio.uio_resid = len; 72 auio.uio_segflg = UIO_SYSSPACE; 73 auio.uio_rw = UIO_WRITE; 74 auio.uio_td = curthread; 75 auio.uio_offset = (off_t) -1; 76 77 bwillwrite(); 78 79 fo_write(filemon->fp, &auio, curthread->td_ucred, 0, curthread); 80} 81 82static struct filemon * 83filemon_pid_check(struct proc *p) 84{ 85 struct filemon *filemon; 86 87 while (p->p_pptr) { 88 TAILQ_FOREACH(filemon, &filemons_inuse, link) { 89 if (p->p_pid == filemon->pid) 90 return (filemon); 91 } 92 p = p->p_pptr; 93 } 94 return (NULL); 95} 96 97static void 98filemon_comment(struct filemon *filemon) 99{ 100 int len; 101 struct timeval now; 102 103 /* Load timestamp before locking. Less accurate but less contention. */ 104 getmicrotime(&now); 105 106 /* Grab a read lock on the filemon inuse list. */ 107 filemon_lock_read(); 108 109 /* Lock the found filemon structure. */ 110 filemon_filemon_lock(filemon); 111 112 len = snprintf(filemon->msgbufr, sizeof(filemon->msgbufr), 113 "# filemon version %d\n# Target pid %d\n# Start %ju.%06ju\nV %d\n", 114 FILEMON_VERSION, curproc->p_pid, (uintmax_t)now.tv_sec, 115 (uintmax_t)now.tv_usec, FILEMON_VERSION); 116 117 filemon_output(filemon, filemon->msgbufr, len); 118 119 /* Unlock the found filemon structure. */ 120 filemon_filemon_unlock(filemon); 121 122 /* Release the read lock. */ 123 filemon_unlock_read(); 124} 125 126static int 127filemon_wrapper_chdir(struct thread *td, struct chdir_args *uap) 128{ 129 int ret; 130 size_t done; 131 size_t len; 132 struct filemon *filemon; 133 134 if ((ret = sys_chdir(td, uap)) == 0) { 135 /* Grab a read lock on the filemon inuse list. */ 136 filemon_lock_read(); 137 138 if ((filemon = filemon_pid_check(curproc)) != NULL) { 139 /* Lock the found filemon structure. */ 140 filemon_filemon_lock(filemon); 141 142 copyinstr(uap->path, filemon->fname1, 143 sizeof(filemon->fname1), &done); 144 145 len = snprintf(filemon->msgbufr, 146 sizeof(filemon->msgbufr), "C %d %s\n", 147 curproc->p_pid, filemon->fname1); 148 149 filemon_output(filemon, filemon->msgbufr, len); 150 151 /* Unlock the found filemon structure. */ 152 filemon_filemon_unlock(filemon); 153 } 154 155 /* Release the read lock. */ 156 filemon_unlock_read(); 157 } 158 159 return (ret); 160} 161 162static int 163filemon_wrapper_execve(struct thread *td, struct execve_args *uap) 164{ 165 char fname[MAXPATHLEN]; 166 int ret; 167 size_t done; 168 size_t len; 169 struct filemon *filemon; 170 171 copyinstr(uap->fname, fname, sizeof(fname), &done); 172 173 if ((ret = sys_execve(td, uap)) == 0) { 174 /* Grab a read lock on the filemon inuse list. */ 175 filemon_lock_read(); 176 177 if ((filemon = filemon_pid_check(curproc)) != NULL) { 178 /* Lock the found filemon structure. */ 179 filemon_filemon_lock(filemon); 180 181 len = snprintf(filemon->msgbufr, 182 sizeof(filemon->msgbufr), "E %d %s\n", 183 curproc->p_pid, fname); 184 185 filemon_output(filemon, filemon->msgbufr, len); 186 187 /* Unlock the found filemon structure. */ 188 filemon_filemon_unlock(filemon); 189 } 190 191 /* Release the read lock. */ 192 filemon_unlock_read(); 193 } 194 195 return (ret); 196} 197 198#if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) 199static int 200filemon_wrapper_freebsd32_execve(struct thread *td, 201 struct freebsd32_execve_args *uap) 202{ 203 char fname[MAXPATHLEN]; 204 int ret; 205 size_t done; 206 size_t len; 207 struct filemon *filemon; 208 209 copyinstr(uap->fname, fname, sizeof(fname), &done); 210 211 if ((ret = freebsd32_execve(td, uap)) == 0) { 212 /* Grab a read lock on the filemon inuse list. */ 213 filemon_lock_read(); 214 215 if ((filemon = filemon_pid_check(curproc)) != NULL) { 216 /* Lock the found filemon structure. */ 217 filemon_filemon_lock(filemon); 218 219 len = snprintf(filemon->msgbufr, 220 sizeof(filemon->msgbufr), "E %d %s\n", 221 curproc->p_pid, fname); 222 223 filemon_output(filemon, filemon->msgbufr, len); 224 225 /* Unlock the found filemon structure. */ 226 filemon_filemon_unlock(filemon); 227 } 228 229 /* Release the read lock. */ 230 filemon_unlock_read(); 231 } 232 233 return (ret); 234} 235#endif 236 237static int 238filemon_wrapper_fork(struct thread *td, struct fork_args *uap) 239{ 240 int ret; 241 size_t len; 242 struct filemon *filemon; 243 244 if ((ret = sys_fork(td, uap)) == 0) { 245 /* Grab a read lock on the filemon inuse list. */ 246 filemon_lock_read(); 247 248 if ((filemon = filemon_pid_check(curproc)) != NULL) { 249 /* Lock the found filemon structure. */ 250 filemon_filemon_lock(filemon); 251 252 len = snprintf(filemon->msgbufr, 253 sizeof(filemon->msgbufr), "F %d %ld\n", 254 curproc->p_pid, (long)curthread->td_retval[0]); 255 256 filemon_output(filemon, filemon->msgbufr, len); 257 258 /* Unlock the found filemon structure. */ 259 filemon_filemon_unlock(filemon); 260 } 261 262 /* Release the read lock. */ 263 filemon_unlock_read(); 264 } 265 266 return (ret); 267} 268 269static int 270filemon_wrapper_open(struct thread *td, struct open_args *uap) 271{ 272 int ret; 273 size_t done; 274 size_t len; 275 struct filemon *filemon; 276 277 if ((ret = sys_open(td, uap)) == 0) { 278 /* Grab a read lock on the filemon inuse list. */ 279 filemon_lock_read(); 280 281 if ((filemon = filemon_pid_check(curproc)) != NULL) { 282 /* Lock the found filemon structure. */ 283 filemon_filemon_lock(filemon); 284 285 copyinstr(uap->path, filemon->fname1, 286 sizeof(filemon->fname1), &done); 287 288 if (uap->flags & O_RDWR) { 289 /* 290 * We'll get the W record below, but need 291 * to also output an R to distingish from 292 * O_WRONLY. 293 */ 294 len = snprintf(filemon->msgbufr, 295 sizeof(filemon->msgbufr), "R %d %s\n", 296 curproc->p_pid, filemon->fname1); 297 filemon_output(filemon, filemon->msgbufr, len); 298 } 299 300 301 len = snprintf(filemon->msgbufr, 302 sizeof(filemon->msgbufr), "%c %d %s\n", 303 (uap->flags & O_ACCMODE) ? 'W':'R', 304 curproc->p_pid, filemon->fname1); 305 filemon_output(filemon, filemon->msgbufr, len); 306 307 /* Unlock the found filemon structure. */ 308 filemon_filemon_unlock(filemon); 309 } 310 311 /* Release the read lock. */ 312 filemon_unlock_read(); 313 } 314 315 return (ret); 316} 317 318static int 319filemon_wrapper_rename(struct thread *td, struct rename_args *uap) 320{ 321 int ret; 322 size_t done; 323 size_t len; 324 struct filemon *filemon; 325 326 if ((ret = sys_rename(td, uap)) == 0) { 327 /* Grab a read lock on the filemon inuse list. */ 328 filemon_lock_read(); 329 330 if ((filemon = filemon_pid_check(curproc)) != NULL) { 331 /* Lock the found filemon structure. */ 332 filemon_filemon_lock(filemon); 333 334 copyinstr(uap->from, filemon->fname1, 335 sizeof(filemon->fname1), &done); 336 copyinstr(uap->to, filemon->fname2, 337 sizeof(filemon->fname2), &done); 338 339 len = snprintf(filemon->msgbufr, 340 sizeof(filemon->msgbufr), "M %d '%s' '%s'\n", 341 curproc->p_pid, filemon->fname1, filemon->fname2); 342 343 filemon_output(filemon, filemon->msgbufr, len); 344 345 /* Unlock the found filemon structure. */ 346 filemon_filemon_unlock(filemon); 347 } 348 349 /* Release the read lock. */ 350 filemon_unlock_read(); 351 } 352 353 return (ret); 354} 355 356static int 357filemon_wrapper_link(struct thread *td, struct link_args *uap) 358{ 359 int ret; 360 size_t done; 361 size_t len; 362 struct filemon *filemon; 363 364 if ((ret = sys_link(td, uap)) == 0) { 365 /* Grab a read lock on the filemon inuse list. */ 366 filemon_lock_read(); 367 368 if ((filemon = filemon_pid_check(curproc)) != NULL) { 369 /* Lock the found filemon structure. */ 370 filemon_filemon_lock(filemon); 371 372 copyinstr(uap->path, filemon->fname1, 373 sizeof(filemon->fname1), &done); 374 copyinstr(uap->link, filemon->fname2, 375 sizeof(filemon->fname2), &done); 376 377 len = snprintf(filemon->msgbufr, 378 sizeof(filemon->msgbufr), "L %d '%s' '%s'\n", 379 curproc->p_pid, filemon->fname1, filemon->fname2); 380 381 filemon_output(filemon, filemon->msgbufr, len); 382 383 /* Unlock the found filemon structure. */ 384 filemon_filemon_unlock(filemon); 385 } 386 387 /* Release the read lock. */ 388 filemon_unlock_read(); 389 } 390 391 return (ret); 392} 393 394static int 395filemon_wrapper_symlink(struct thread *td, struct symlink_args *uap) 396{ 397 int ret; 398 size_t done; 399 size_t len; 400 struct filemon *filemon; 401 402 if ((ret = sys_symlink(td, uap)) == 0) { 403 /* Grab a read lock on the filemon inuse list. */ 404 filemon_lock_read(); 405 406 if ((filemon = filemon_pid_check(curproc)) != NULL) { 407 /* Lock the found filemon structure. */ 408 filemon_filemon_lock(filemon); 409 410 copyinstr(uap->path, filemon->fname1, 411 sizeof(filemon->fname1), &done); 412 copyinstr(uap->link, filemon->fname2, 413 sizeof(filemon->fname2), &done); 414 415 len = snprintf(filemon->msgbufr, 416 sizeof(filemon->msgbufr), "L %d '%s' '%s'\n", 417 curproc->p_pid, filemon->fname1, filemon->fname2); 418 419 filemon_output(filemon, filemon->msgbufr, len); 420 421 /* Unlock the found filemon structure. */ 422 filemon_filemon_unlock(filemon); 423 } 424 425 /* Release the read lock. */ 426 filemon_unlock_read(); 427 } 428 429 return (ret); 430} 431 432#ifdef FILEMON_HAS_LINKAT 433static int 434filemon_wrapper_linkat(struct thread *td, struct linkat_args *uap) 435{ 436 int ret; 437 size_t done; 438 size_t len; 439 struct filemon *filemon; 440 441 if ((ret = sys_linkat(td, uap)) == 0) { 442 /* Grab a read lock on the filemon inuse list. */ 443 filemon_lock_read(); 444 445 if ((filemon = filemon_pid_check(curproc)) != NULL) { 446 /* Lock the found filemon structure. */ 447 filemon_filemon_lock(filemon); 448 449 copyinstr(uap->path1, filemon->fname1, 450 sizeof(filemon->fname1), &done); 451 copyinstr(uap->path2, filemon->fname2, 452 sizeof(filemon->fname2), &done); 453 454 len = snprintf(filemon->msgbufr, 455 sizeof(filemon->msgbufr), "L %d '%s' '%s'\n", 456 curproc->p_pid, filemon->fname1, filemon->fname2); 457 458 filemon_output(filemon, filemon->msgbufr, len); 459 460 /* Unlock the found filemon structure. */ 461 filemon_filemon_unlock(filemon); 462 } 463 464 /* Release the read lock. */ 465 filemon_unlock_read(); 466 } 467 468 return (ret); 469} 470#endif 471 472static int 473filemon_wrapper_stat(struct thread *td, struct stat_args *uap) 474{ 475 int ret; 476 size_t done; 477 size_t len; 478 struct filemon *filemon; 479 480 if ((ret = sys_stat(td, uap)) == 0) { 481 /* Grab a read lock on the filemon inuse list. */ 482 filemon_lock_read(); 483 484 if ((filemon = filemon_pid_check(curproc)) != NULL) { 485 /* Lock the found filemon structure. */ 486 filemon_filemon_lock(filemon); 487 488 copyinstr(uap->path, filemon->fname1, 489 sizeof(filemon->fname1), &done); 490 491 len = snprintf(filemon->msgbufr, 492 sizeof(filemon->msgbufr), "S %d %s\n", 493 curproc->p_pid, filemon->fname1); 494 495 filemon_output(filemon, filemon->msgbufr, len); 496 497 /* Unlock the found filemon structure. */ 498 filemon_filemon_unlock(filemon); 499 } 500 501 /* Release the read lock. */ 502 filemon_unlock_read(); 503 } 504 505 return (ret); 506} 507 508#if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) 509static int 510filemon_wrapper_freebsd32_stat(struct thread *td, 511 struct freebsd32_stat_args *uap) 512{ 513 int ret; 514 size_t done; 515 size_t len; 516 struct filemon *filemon; 517 518 if ((ret = freebsd32_stat(td, uap)) == 0) { 519 /* Grab a read lock on the filemon inuse list. */ 520 filemon_lock_read(); 521 522 if ((filemon = filemon_pid_check(curproc)) != NULL) { 523 /* Lock the found filemon structure. */ 524 filemon_filemon_lock(filemon); 525 526 copyinstr(uap->path, filemon->fname1, 527 sizeof(filemon->fname1), &done); 528 529 len = snprintf(filemon->msgbufr, 530 sizeof(filemon->msgbufr), "S %d %s\n", 531 curproc->p_pid, filemon->fname1); 532 533 filemon_output(filemon, filemon->msgbufr, len); 534 535 /* Unlock the found filemon structure. */ 536 filemon_filemon_unlock(filemon); 537 } 538 539 /* Release the read lock. */ 540 filemon_unlock_read(); 541 } 542 543 return (ret); 544} 545#endif 546 547static void 548filemon_wrapper_sys_exit(struct thread *td, struct sys_exit_args *uap) 549{ 550 size_t len; 551 struct filemon *filemon; 552 struct timeval now; 553 554 /* Get timestamp before locking. */ 555 getmicrotime(&now); 556 557 /* Grab a read lock on the filemon inuse list. */ 558 filemon_lock_read(); 559 560 if ((filemon = filemon_pid_check(curproc)) != NULL) { 561 /* Lock the found filemon structure. */ 562 filemon_filemon_lock(filemon); 563 564 len = snprintf(filemon->msgbufr, sizeof(filemon->msgbufr), 565 "X %d %d\n", curproc->p_pid, uap->rval); 566 567 filemon_output(filemon, filemon->msgbufr, len); 568 569 /* Check if the monitored process is about to exit. */ 570 if (filemon->pid == curproc->p_pid) { 571 len = snprintf(filemon->msgbufr, 572 sizeof(filemon->msgbufr), 573 "# Stop %ju.%06ju\n# Bye bye\n", 574 (uintmax_t)now.tv_sec, (uintmax_t)now.tv_usec); 575 576 filemon_output(filemon, filemon->msgbufr, len); 577 filemon->pid = -1; 578 } 579 580 /* Unlock the found filemon structure. */ 581 filemon_filemon_unlock(filemon); 582 } 583 584 /* Release the read lock. */ 585 filemon_unlock_read(); 586 587 sys_sys_exit(td, uap); 588} 589 590static int 591filemon_wrapper_unlink(struct thread *td, struct unlink_args *uap) 592{ 593 int ret; 594 size_t done; 595 size_t len; 596 struct filemon *filemon; 597 598 if ((ret = sys_unlink(td, uap)) == 0) { 599 /* Grab a read lock on the filemon inuse list. */ 600 filemon_lock_read(); 601 602 if ((filemon = filemon_pid_check(curproc)) != NULL) { 603 /* Lock the found filemon structure. */ 604 filemon_filemon_lock(filemon); 605 606 copyinstr(uap->path, filemon->fname1, 607 sizeof(filemon->fname1), &done); 608 609 len = snprintf(filemon->msgbufr, 610 sizeof(filemon->msgbufr), "D %d %s\n", 611 curproc->p_pid, filemon->fname1); 612 613 filemon_output(filemon, filemon->msgbufr, len); 614 615 /* Unlock the found filemon structure. */ 616 filemon_filemon_unlock(filemon); 617 } 618 619 /* Release the read lock. */ 620 filemon_unlock_read(); 621 } 622 623 return (ret); 624} 625 626static int 627filemon_wrapper_vfork(struct thread *td, struct vfork_args *uap) 628{ 629 int ret; 630 size_t len; 631 struct filemon *filemon; 632 633 if ((ret = sys_vfork(td, uap)) == 0) { 634 /* Grab a read lock on the filemon inuse list. */ 635 filemon_lock_read(); 636 637 if ((filemon = filemon_pid_check(curproc)) != NULL) { 638 /* Lock the found filemon structure. */ 639 filemon_filemon_lock(filemon); 640 641 len = snprintf(filemon->msgbufr, 642 sizeof(filemon->msgbufr), "F %d %ld\n", 643 curproc->p_pid, (long)curthread->td_retval[0]); 644 645 filemon_output(filemon, filemon->msgbufr, len); 646 647 /* Unlock the found filemon structure. */ 648 filemon_filemon_unlock(filemon); 649 } 650 651 /* Release the read lock. */ 652 filemon_unlock_read(); 653 } 654 655 return (ret); 656} 657 658static void 659filemon_wrapper_install(void) 660{ 661#if defined(__LP64__) 662 struct sysent *sv_table = elf64_freebsd_sysvec.sv_table; 663#else 664 struct sysent *sv_table = elf32_freebsd_sysvec.sv_table; 665#endif 666 667 sv_table[SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; 668 sv_table[SYS_exit].sy_call = (sy_call_t *) filemon_wrapper_sys_exit; 669 sv_table[SYS_execve].sy_call = (sy_call_t *) filemon_wrapper_execve; 670 sv_table[SYS_fork].sy_call = (sy_call_t *) filemon_wrapper_fork; 671 sv_table[SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; 672 sv_table[SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; 673 sv_table[SYS_stat].sy_call = (sy_call_t *) filemon_wrapper_stat; 674 sv_table[SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; 675 sv_table[SYS_vfork].sy_call = (sy_call_t *) filemon_wrapper_vfork; 676 sv_table[SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; 677 sv_table[SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; 678#ifdef FILEMON_HAS_LINKAT 679 sv_table[SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; 680#endif 681 682#if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) 683 sv_table = ia32_freebsd_sysvec.sv_table; 684 685 sv_table[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *) filemon_wrapper_chdir; 686 sv_table[FREEBSD32_SYS_exit].sy_call = (sy_call_t *) filemon_wrapper_sys_exit; 687 sv_table[FREEBSD32_SYS_freebsd32_execve].sy_call = (sy_call_t *) filemon_wrapper_freebsd32_execve; 688 sv_table[FREEBSD32_SYS_fork].sy_call = (sy_call_t *) filemon_wrapper_fork; 689 sv_table[FREEBSD32_SYS_open].sy_call = (sy_call_t *) filemon_wrapper_open; 690 sv_table[FREEBSD32_SYS_rename].sy_call = (sy_call_t *) filemon_wrapper_rename; 691 sv_table[FREEBSD32_SYS_freebsd32_stat].sy_call = (sy_call_t *) filemon_wrapper_freebsd32_stat; 692 sv_table[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *) filemon_wrapper_unlink; 693 sv_table[FREEBSD32_SYS_vfork].sy_call = (sy_call_t *) filemon_wrapper_vfork; 694 sv_table[FREEBSD32_SYS_link].sy_call = (sy_call_t *) filemon_wrapper_link; 695 sv_table[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *) filemon_wrapper_symlink; 696#ifdef FILEMON_HAS_LINKAT 697 sv_table[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *) filemon_wrapper_linkat; 698#endif 699#endif /* COMPAT_ARCH32 */ 700} 701 702static void 703filemon_wrapper_deinstall(void) 704{ 705#if defined(__LP64__) 706 struct sysent *sv_table = elf64_freebsd_sysvec.sv_table; 707#else 708 struct sysent *sv_table = elf32_freebsd_sysvec.sv_table; 709#endif 710 711 sv_table[SYS_chdir].sy_call = (sy_call_t *)sys_chdir; 712 sv_table[SYS_exit].sy_call = (sy_call_t *)sys_sys_exit; 713 sv_table[SYS_execve].sy_call = (sy_call_t *)sys_execve; 714 sv_table[SYS_fork].sy_call = (sy_call_t *)sys_fork; 715 sv_table[SYS_open].sy_call = (sy_call_t *)sys_open; 716 sv_table[SYS_rename].sy_call = (sy_call_t *)sys_rename; 717 sv_table[SYS_stat].sy_call = (sy_call_t *)sys_stat; 718 sv_table[SYS_unlink].sy_call = (sy_call_t *)sys_unlink; 719 sv_table[SYS_vfork].sy_call = (sy_call_t *)sys_vfork; 720 sv_table[SYS_link].sy_call = (sy_call_t *)sys_link; 721 sv_table[SYS_symlink].sy_call = (sy_call_t *)sys_symlink; 722#ifdef FILEMON_HAS_LINKAT 723 sv_table[SYS_linkat].sy_call = (sy_call_t *)sys_linkat; 724#endif 725 726#if defined(COMPAT_IA32) || defined(COMPAT_FREEBSD32) || defined(COMPAT_ARCH32) 727 sv_table = ia32_freebsd_sysvec.sv_table; 728 729 sv_table[FREEBSD32_SYS_chdir].sy_call = (sy_call_t *)sys_chdir; 730 sv_table[FREEBSD32_SYS_exit].sy_call = (sy_call_t *)sys_sys_exit; 731 sv_table[FREEBSD32_SYS_freebsd32_execve].sy_call = (sy_call_t *)freebsd32_execve; 732 sv_table[FREEBSD32_SYS_fork].sy_call = (sy_call_t *)sys_fork; 733 sv_table[FREEBSD32_SYS_open].sy_call = (sy_call_t *)sys_open; 734 sv_table[FREEBSD32_SYS_rename].sy_call = (sy_call_t *)sys_rename; 735 sv_table[FREEBSD32_SYS_freebsd32_stat].sy_call = (sy_call_t *)freebsd32_stat; 736 sv_table[FREEBSD32_SYS_unlink].sy_call = (sy_call_t *)sys_unlink; 737 sv_table[FREEBSD32_SYS_vfork].sy_call = (sy_call_t *)sys_vfork; 738 sv_table[FREEBSD32_SYS_link].sy_call = (sy_call_t *)sys_link; 739 sv_table[FREEBSD32_SYS_symlink].sy_call = (sy_call_t *)sys_symlink; 740#ifdef FILEMON_HAS_LINKAT 741 sv_table[FREEBSD32_SYS_linkat].sy_call = (sy_call_t *)sys_linkat; 742#endif 743#endif /* COMPAT_ARCH32 */ 744} 745