1/*- 2 * Copyright (c) 1999-2005 Apple Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD$"); 32 33#include <sys/param.h> 34#include <sys/filedesc.h> 35#include <sys/ipc.h> 36#include <sys/mount.h> 37#include <sys/proc.h> 38#include <sys/socket.h> 39#include <sys/socketvar.h> 40#include <sys/protosw.h> 41#include <sys/domain.h> 42#include <sys/sbuf.h> 43#include <sys/systm.h> 44#include <sys/un.h> 45#include <sys/vnode.h> 46 47#include <netinet/in.h> 48#include <netinet/in_pcb.h> 49 50#include <security/audit/audit.h> 51#include <security/audit/audit_private.h> 52 53/* 54 * Calls to manipulate elements of the audit record structure from system 55 * call code. Macro wrappers will prevent this functions from being entered 56 * if auditing is disabled, avoiding the function call cost. We check the 57 * thread audit record pointer anyway, as the audit condition could change, 58 * and pre-selection may not have allocated an audit record for this event. 59 * 60 * XXXAUDIT: Should we assert, in each case, that this field of the record 61 * hasn't already been filled in? 62 */ 63void 64audit_arg_addr(void *addr) 65{ 66 struct kaudit_record *ar; 67 68 ar = currecord(); 69 if (ar == NULL) 70 return; 71 72 ar->k_ar.ar_arg_addr = addr; 73 ARG_SET_VALID(ar, ARG_ADDR); 74} 75 76void 77audit_arg_exit(int status, int retval) 78{ 79 struct kaudit_record *ar; 80 81 ar = currecord(); 82 if (ar == NULL) 83 return; 84 85 ar->k_ar.ar_arg_exitstatus = status; 86 ar->k_ar.ar_arg_exitretval = retval; 87 ARG_SET_VALID(ar, ARG_EXIT); 88} 89 90void 91audit_arg_len(int len) 92{ 93 struct kaudit_record *ar; 94 95 ar = currecord(); 96 if (ar == NULL) 97 return; 98 99 ar->k_ar.ar_arg_len = len; 100 ARG_SET_VALID(ar, ARG_LEN); 101} 102 103void 104audit_arg_atfd1(int atfd) 105{ 106 struct kaudit_record *ar; 107 108 ar = currecord(); 109 if (ar == NULL) 110 return; 111 112 ar->k_ar.ar_arg_atfd1 = atfd; 113 ARG_SET_VALID(ar, ARG_ATFD1); 114} 115 116void 117audit_arg_atfd2(int atfd) 118{ 119 struct kaudit_record *ar; 120 121 ar = currecord(); 122 if (ar == NULL) 123 return; 124 125 ar->k_ar.ar_arg_atfd2 = atfd; 126 ARG_SET_VALID(ar, ARG_ATFD2); 127} 128 129void 130audit_arg_fd(int fd) 131{ 132 struct kaudit_record *ar; 133 134 ar = currecord(); 135 if (ar == NULL) 136 return; 137 138 ar->k_ar.ar_arg_fd = fd; 139 ARG_SET_VALID(ar, ARG_FD); 140} 141 142void 143audit_arg_fflags(int fflags) 144{ 145 struct kaudit_record *ar; 146 147 ar = currecord(); 148 if (ar == NULL) 149 return; 150 151 ar->k_ar.ar_arg_fflags = fflags; 152 ARG_SET_VALID(ar, ARG_FFLAGS); 153} 154 155void 156audit_arg_gid(gid_t gid) 157{ 158 struct kaudit_record *ar; 159 160 ar = currecord(); 161 if (ar == NULL) 162 return; 163 164 ar->k_ar.ar_arg_gid = gid; 165 ARG_SET_VALID(ar, ARG_GID); 166} 167 168void 169audit_arg_uid(uid_t uid) 170{ 171 struct kaudit_record *ar; 172 173 ar = currecord(); 174 if (ar == NULL) 175 return; 176 177 ar->k_ar.ar_arg_uid = uid; 178 ARG_SET_VALID(ar, ARG_UID); 179} 180 181void 182audit_arg_egid(gid_t egid) 183{ 184 struct kaudit_record *ar; 185 186 ar = currecord(); 187 if (ar == NULL) 188 return; 189 190 ar->k_ar.ar_arg_egid = egid; 191 ARG_SET_VALID(ar, ARG_EGID); 192} 193 194void 195audit_arg_euid(uid_t euid) 196{ 197 struct kaudit_record *ar; 198 199 ar = currecord(); 200 if (ar == NULL) 201 return; 202 203 ar->k_ar.ar_arg_euid = euid; 204 ARG_SET_VALID(ar, ARG_EUID); 205} 206 207void 208audit_arg_rgid(gid_t rgid) 209{ 210 struct kaudit_record *ar; 211 212 ar = currecord(); 213 if (ar == NULL) 214 return; 215 216 ar->k_ar.ar_arg_rgid = rgid; 217 ARG_SET_VALID(ar, ARG_RGID); 218} 219 220void 221audit_arg_ruid(uid_t ruid) 222{ 223 struct kaudit_record *ar; 224 225 ar = currecord(); 226 if (ar == NULL) 227 return; 228 229 ar->k_ar.ar_arg_ruid = ruid; 230 ARG_SET_VALID(ar, ARG_RUID); 231} 232 233void 234audit_arg_sgid(gid_t sgid) 235{ 236 struct kaudit_record *ar; 237 238 ar = currecord(); 239 if (ar == NULL) 240 return; 241 242 ar->k_ar.ar_arg_sgid = sgid; 243 ARG_SET_VALID(ar, ARG_SGID); 244} 245 246void 247audit_arg_suid(uid_t suid) 248{ 249 struct kaudit_record *ar; 250 251 ar = currecord(); 252 if (ar == NULL) 253 return; 254 255 ar->k_ar.ar_arg_suid = suid; 256 ARG_SET_VALID(ar, ARG_SUID); 257} 258 259void 260audit_arg_groupset(gid_t *gidset, u_int gidset_size) 261{ 262 u_int i; 263 struct kaudit_record *ar; 264 265 KASSERT(gidset_size <= ngroups_max + 1, 266 ("audit_arg_groupset: gidset_size > (kern.ngroups + 1)")); 267 268 ar = currecord(); 269 if (ar == NULL) 270 return; 271 272 if (ar->k_ar.ar_arg_groups.gidset == NULL) 273 ar->k_ar.ar_arg_groups.gidset = malloc( 274 sizeof(gid_t) * gidset_size, M_AUDITGIDSET, M_WAITOK); 275 276 for (i = 0; i < gidset_size; i++) 277 ar->k_ar.ar_arg_groups.gidset[i] = gidset[i]; 278 ar->k_ar.ar_arg_groups.gidset_size = gidset_size; 279 ARG_SET_VALID(ar, ARG_GROUPSET); 280} 281 282void 283audit_arg_login(char *login) 284{ 285 struct kaudit_record *ar; 286 287 ar = currecord(); 288 if (ar == NULL) 289 return; 290 291 strlcpy(ar->k_ar.ar_arg_login, login, MAXLOGNAME); 292 ARG_SET_VALID(ar, ARG_LOGIN); 293} 294 295void 296audit_arg_ctlname(int *name, int namelen) 297{ 298 struct kaudit_record *ar; 299 300 ar = currecord(); 301 if (ar == NULL) 302 return; 303 304 bcopy(name, &ar->k_ar.ar_arg_ctlname, namelen * sizeof(int)); 305 ar->k_ar.ar_arg_len = namelen; 306 ARG_SET_VALID(ar, ARG_CTLNAME | ARG_LEN); 307} 308 309void 310audit_arg_mask(int mask) 311{ 312 struct kaudit_record *ar; 313 314 ar = currecord(); 315 if (ar == NULL) 316 return; 317 318 ar->k_ar.ar_arg_mask = mask; 319 ARG_SET_VALID(ar, ARG_MASK); 320} 321 322void 323audit_arg_mode(mode_t mode) 324{ 325 struct kaudit_record *ar; 326 327 ar = currecord(); 328 if (ar == NULL) 329 return; 330 331 ar->k_ar.ar_arg_mode = mode; 332 ARG_SET_VALID(ar, ARG_MODE); 333} 334 335void 336audit_arg_dev(int dev) 337{ 338 struct kaudit_record *ar; 339 340 ar = currecord(); 341 if (ar == NULL) 342 return; 343 344 ar->k_ar.ar_arg_dev = dev; 345 ARG_SET_VALID(ar, ARG_DEV); 346} 347 348void 349audit_arg_value(long value) 350{ 351 struct kaudit_record *ar; 352 353 ar = currecord(); 354 if (ar == NULL) 355 return; 356 357 ar->k_ar.ar_arg_value = value; 358 ARG_SET_VALID(ar, ARG_VALUE); 359} 360 361void 362audit_arg_owner(uid_t uid, gid_t gid) 363{ 364 struct kaudit_record *ar; 365 366 ar = currecord(); 367 if (ar == NULL) 368 return; 369 370 ar->k_ar.ar_arg_uid = uid; 371 ar->k_ar.ar_arg_gid = gid; 372 ARG_SET_VALID(ar, ARG_UID | ARG_GID); 373} 374 375void 376audit_arg_pid(pid_t pid) 377{ 378 struct kaudit_record *ar; 379 380 ar = currecord(); 381 if (ar == NULL) 382 return; 383 384 ar->k_ar.ar_arg_pid = pid; 385 ARG_SET_VALID(ar, ARG_PID); 386} 387 388void 389audit_arg_process(struct proc *p) 390{ 391 struct kaudit_record *ar; 392 struct ucred *cred; 393 394 KASSERT(p != NULL, ("audit_arg_process: p == NULL")); 395 396 PROC_LOCK_ASSERT(p, MA_OWNED); 397 398 ar = currecord(); 399 if (ar == NULL) 400 return; 401 402 cred = p->p_ucred; 403 ar->k_ar.ar_arg_auid = cred->cr_audit.ai_auid; 404 ar->k_ar.ar_arg_euid = cred->cr_uid; 405 ar->k_ar.ar_arg_egid = cred->cr_groups[0]; 406 ar->k_ar.ar_arg_ruid = cred->cr_ruid; 407 ar->k_ar.ar_arg_rgid = cred->cr_rgid; 408 ar->k_ar.ar_arg_asid = cred->cr_audit.ai_asid; 409 ar->k_ar.ar_arg_termid_addr = cred->cr_audit.ai_termid; 410 ar->k_ar.ar_arg_pid = p->p_pid; 411 ARG_SET_VALID(ar, ARG_AUID | ARG_EUID | ARG_EGID | ARG_RUID | 412 ARG_RGID | ARG_ASID | ARG_TERMID_ADDR | ARG_PID | ARG_PROCESS); 413} 414 415void 416audit_arg_signum(u_int signum) 417{ 418 struct kaudit_record *ar; 419 420 ar = currecord(); 421 if (ar == NULL) 422 return; 423 424 ar->k_ar.ar_arg_signum = signum; 425 ARG_SET_VALID(ar, ARG_SIGNUM); 426} 427 428void 429audit_arg_socket(int sodomain, int sotype, int soprotocol) 430{ 431 struct kaudit_record *ar; 432 433 ar = currecord(); 434 if (ar == NULL) 435 return; 436 437 ar->k_ar.ar_arg_sockinfo.so_domain = sodomain; 438 ar->k_ar.ar_arg_sockinfo.so_type = sotype; 439 ar->k_ar.ar_arg_sockinfo.so_protocol = soprotocol; 440 ARG_SET_VALID(ar, ARG_SOCKINFO); 441} 442 443void 444audit_arg_sockaddr(struct thread *td, int dirfd, struct sockaddr *sa) 445{ 446 struct kaudit_record *ar; 447 448 KASSERT(td != NULL, ("audit_arg_sockaddr: td == NULL")); 449 KASSERT(sa != NULL, ("audit_arg_sockaddr: sa == NULL")); 450 451 ar = currecord(); 452 if (ar == NULL) 453 return; 454 455 bcopy(sa, &ar->k_ar.ar_arg_sockaddr, sa->sa_len); 456 switch (sa->sa_family) { 457 case AF_INET: 458 ARG_SET_VALID(ar, ARG_SADDRINET); 459 break; 460 461 case AF_INET6: 462 ARG_SET_VALID(ar, ARG_SADDRINET6); 463 break; 464 465 case AF_UNIX: 466 if (dirfd != AT_FDCWD) 467 audit_arg_atfd1(dirfd); 468 audit_arg_upath1(td, dirfd, 469 ((struct sockaddr_un *)sa)->sun_path); 470 ARG_SET_VALID(ar, ARG_SADDRUNIX); 471 break; 472 /* XXXAUDIT: default:? */ 473 } 474} 475 476void 477audit_arg_auid(uid_t auid) 478{ 479 struct kaudit_record *ar; 480 481 ar = currecord(); 482 if (ar == NULL) 483 return; 484 485 ar->k_ar.ar_arg_auid = auid; 486 ARG_SET_VALID(ar, ARG_AUID); 487} 488 489void 490audit_arg_auditinfo(struct auditinfo *au_info) 491{ 492 struct kaudit_record *ar; 493 494 ar = currecord(); 495 if (ar == NULL) 496 return; 497 498 ar->k_ar.ar_arg_auid = au_info->ai_auid; 499 ar->k_ar.ar_arg_asid = au_info->ai_asid; 500 ar->k_ar.ar_arg_amask.am_success = au_info->ai_mask.am_success; 501 ar->k_ar.ar_arg_amask.am_failure = au_info->ai_mask.am_failure; 502 ar->k_ar.ar_arg_termid.port = au_info->ai_termid.port; 503 ar->k_ar.ar_arg_termid.machine = au_info->ai_termid.machine; 504 ARG_SET_VALID(ar, ARG_AUID | ARG_ASID | ARG_AMASK | ARG_TERMID); 505} 506 507void 508audit_arg_auditinfo_addr(struct auditinfo_addr *au_info) 509{ 510 struct kaudit_record *ar; 511 512 ar = currecord(); 513 if (ar == NULL) 514 return; 515 516 ar->k_ar.ar_arg_auid = au_info->ai_auid; 517 ar->k_ar.ar_arg_asid = au_info->ai_asid; 518 ar->k_ar.ar_arg_amask.am_success = au_info->ai_mask.am_success; 519 ar->k_ar.ar_arg_amask.am_failure = au_info->ai_mask.am_failure; 520 ar->k_ar.ar_arg_termid_addr.at_type = au_info->ai_termid.at_type; 521 ar->k_ar.ar_arg_termid_addr.at_port = au_info->ai_termid.at_port; 522 ar->k_ar.ar_arg_termid_addr.at_addr[0] = au_info->ai_termid.at_addr[0]; 523 ar->k_ar.ar_arg_termid_addr.at_addr[1] = au_info->ai_termid.at_addr[1]; 524 ar->k_ar.ar_arg_termid_addr.at_addr[2] = au_info->ai_termid.at_addr[2]; 525 ar->k_ar.ar_arg_termid_addr.at_addr[3] = au_info->ai_termid.at_addr[3]; 526 ARG_SET_VALID(ar, ARG_AUID | ARG_ASID | ARG_AMASK | ARG_TERMID_ADDR); 527} 528 529void 530audit_arg_text(char *text) 531{ 532 struct kaudit_record *ar; 533 534 KASSERT(text != NULL, ("audit_arg_text: text == NULL")); 535 536 ar = currecord(); 537 if (ar == NULL) 538 return; 539 540 /* Invalidate the text string */ 541 ar->k_ar.ar_valid_arg &= (ARG_ALL ^ ARG_TEXT); 542 543 if (ar->k_ar.ar_arg_text == NULL) 544 ar->k_ar.ar_arg_text = malloc(MAXPATHLEN, M_AUDITTEXT, 545 M_WAITOK); 546 547 strncpy(ar->k_ar.ar_arg_text, text, MAXPATHLEN); 548 ARG_SET_VALID(ar, ARG_TEXT); 549} 550 551void 552audit_arg_cmd(int cmd) 553{ 554 struct kaudit_record *ar; 555 556 ar = currecord(); 557 if (ar == NULL) 558 return; 559 560 ar->k_ar.ar_arg_cmd = cmd; 561 ARG_SET_VALID(ar, ARG_CMD); 562} 563 564void 565audit_arg_svipc_cmd(int cmd) 566{ 567 struct kaudit_record *ar; 568 569 ar = currecord(); 570 if (ar == NULL) 571 return; 572 573 ar->k_ar.ar_arg_svipc_cmd = cmd; 574 ARG_SET_VALID(ar, ARG_SVIPC_CMD); 575} 576 577void 578audit_arg_svipc_perm(struct ipc_perm *perm) 579{ 580 struct kaudit_record *ar; 581 582 ar = currecord(); 583 if (ar == NULL) 584 return; 585 586 bcopy(perm, &ar->k_ar.ar_arg_svipc_perm, 587 sizeof(ar->k_ar.ar_arg_svipc_perm)); 588 ARG_SET_VALID(ar, ARG_SVIPC_PERM); 589} 590 591void 592audit_arg_svipc_id(int id) 593{ 594 struct kaudit_record *ar; 595 596 ar = currecord(); 597 if (ar == NULL) 598 return; 599 600 ar->k_ar.ar_arg_svipc_id = id; 601 ARG_SET_VALID(ar, ARG_SVIPC_ID); 602} 603 604void 605audit_arg_svipc_addr(void * addr) 606{ 607 struct kaudit_record *ar; 608 609 ar = currecord(); 610 if (ar == NULL) 611 return; 612 613 ar->k_ar.ar_arg_svipc_addr = addr; 614 ARG_SET_VALID(ar, ARG_SVIPC_ADDR); 615} 616 617void 618audit_arg_posix_ipc_perm(uid_t uid, gid_t gid, mode_t mode) 619{ 620 struct kaudit_record *ar; 621 622 ar = currecord(); 623 if (ar == NULL) 624 return; 625 626 ar->k_ar.ar_arg_pipc_perm.pipc_uid = uid; 627 ar->k_ar.ar_arg_pipc_perm.pipc_gid = gid; 628 ar->k_ar.ar_arg_pipc_perm.pipc_mode = mode; 629 ARG_SET_VALID(ar, ARG_POSIX_IPC_PERM); 630} 631 632void 633audit_arg_auditon(union auditon_udata *udata) 634{ 635 struct kaudit_record *ar; 636 637 ar = currecord(); 638 if (ar == NULL) 639 return; 640 641 bcopy((void *)udata, &ar->k_ar.ar_arg_auditon, 642 sizeof(ar->k_ar.ar_arg_auditon)); 643 ARG_SET_VALID(ar, ARG_AUDITON); 644} 645 646/* 647 * Audit information about a file, either the file's vnode info, or its 648 * socket address info. 649 */ 650void 651audit_arg_file(struct proc *p, struct file *fp) 652{ 653 struct kaudit_record *ar; 654 struct socket *so; 655 struct inpcb *pcb; 656 struct vnode *vp; 657 658 ar = currecord(); 659 if (ar == NULL) 660 return; 661 662 switch (fp->f_type) { 663 case DTYPE_VNODE: 664 case DTYPE_FIFO: 665 /* 666 * XXXAUDIT: Only possibly to record as first vnode? 667 */ 668 vp = fp->f_vnode; 669 vn_lock(vp, LK_SHARED | LK_RETRY); 670 audit_arg_vnode1(vp); 671 VOP_UNLOCK(vp, 0); 672 break; 673 674 case DTYPE_SOCKET: 675 so = (struct socket *)fp->f_data; 676 if (INP_CHECK_SOCKAF(so, PF_INET)) { 677 SOCK_LOCK(so); 678 ar->k_ar.ar_arg_sockinfo.so_type = 679 so->so_type; 680 ar->k_ar.ar_arg_sockinfo.so_domain = 681 INP_SOCKAF(so); 682 ar->k_ar.ar_arg_sockinfo.so_protocol = 683 so->so_proto->pr_protocol; 684 SOCK_UNLOCK(so); 685 pcb = (struct inpcb *)so->so_pcb; 686 INP_RLOCK(pcb); 687 ar->k_ar.ar_arg_sockinfo.so_raddr = 688 pcb->inp_faddr.s_addr; 689 ar->k_ar.ar_arg_sockinfo.so_laddr = 690 pcb->inp_laddr.s_addr; 691 ar->k_ar.ar_arg_sockinfo.so_rport = 692 pcb->inp_fport; 693 ar->k_ar.ar_arg_sockinfo.so_lport = 694 pcb->inp_lport; 695 INP_RUNLOCK(pcb); 696 ARG_SET_VALID(ar, ARG_SOCKINFO); 697 } 698 break; 699 700 default: 701 /* XXXAUDIT: else? */ 702 break; 703 } 704} 705 706/* 707 * Store a path as given by the user process for auditing into the audit 708 * record stored on the user thread. This function will allocate the memory 709 * to store the path info if not already available. This memory will be 710 * freed when the audit record is freed. 711 */ 712static void 713audit_arg_upath(struct thread *td, int dirfd, char *upath, char **pathp) 714{ 715 716 if (*pathp == NULL) 717 *pathp = malloc(MAXPATHLEN, M_AUDITPATH, M_WAITOK); 718 audit_canon_path(td, dirfd, upath, *pathp); 719} 720 721void 722audit_arg_upath1(struct thread *td, int dirfd, char *upath) 723{ 724 struct kaudit_record *ar; 725 726 ar = currecord(); 727 if (ar == NULL) 728 return; 729 730 audit_arg_upath(td, dirfd, upath, &ar->k_ar.ar_arg_upath1); 731 ARG_SET_VALID(ar, ARG_UPATH1); 732} 733 734void 735audit_arg_upath2(struct thread *td, int dirfd, char *upath) 736{ 737 struct kaudit_record *ar; 738 739 ar = currecord(); 740 if (ar == NULL) 741 return; 742 743 audit_arg_upath(td, dirfd, upath, &ar->k_ar.ar_arg_upath2); 744 ARG_SET_VALID(ar, ARG_UPATH2); 745} 746 747/* 748 * Function to save the path and vnode attr information into the audit 749 * record. 750 * 751 * It is assumed that the caller will hold any vnode locks necessary to 752 * perform a VOP_GETATTR() on the passed vnode. 753 * 754 * XXX: The attr code is very similar to vfs_vnops.c:vn_stat(), but always 755 * provides access to the generation number as we need that to construct the 756 * BSM file ID. 757 * 758 * XXX: We should accept the process argument from the caller, since it's 759 * very likely they already have a reference. 760 * 761 * XXX: Error handling in this function is poor. 762 * 763 * XXXAUDIT: Possibly KASSERT the path pointer is NULL? 764 */ 765static int 766audit_arg_vnode(struct vnode *vp, struct vnode_au_info *vnp) 767{ 768 struct vattr vattr; 769 int error; 770 771 ASSERT_VOP_LOCKED(vp, "audit_arg_vnode"); 772 773 error = VOP_GETATTR(vp, &vattr, curthread->td_ucred); 774 if (error) { 775 /* XXX: How to handle this case? */ 776 return (error); 777 } 778 779 vnp->vn_mode = vattr.va_mode; 780 vnp->vn_uid = vattr.va_uid; 781 vnp->vn_gid = vattr.va_gid; 782 vnp->vn_dev = vattr.va_rdev; 783 vnp->vn_fsid = vattr.va_fsid; 784 vnp->vn_fileid = vattr.va_fileid; 785 vnp->vn_gen = vattr.va_gen; 786 return (0); 787} 788 789void 790audit_arg_vnode1(struct vnode *vp) 791{ 792 struct kaudit_record *ar; 793 int error; 794 795 ar = currecord(); 796 if (ar == NULL) 797 return; 798 799 ARG_CLEAR_VALID(ar, ARG_VNODE1); 800 error = audit_arg_vnode(vp, &ar->k_ar.ar_arg_vnode1); 801 if (error == 0) 802 ARG_SET_VALID(ar, ARG_VNODE1); 803} 804 805void 806audit_arg_vnode2(struct vnode *vp) 807{ 808 struct kaudit_record *ar; 809 int error; 810 811 ar = currecord(); 812 if (ar == NULL) 813 return; 814 815 ARG_CLEAR_VALID(ar, ARG_VNODE2); 816 error = audit_arg_vnode(vp, &ar->k_ar.ar_arg_vnode2); 817 if (error == 0) 818 ARG_SET_VALID(ar, ARG_VNODE2); 819} 820 821/* 822 * Audit the argument strings passed to exec. 823 */ 824void 825audit_arg_argv(char *argv, int argc, int length) 826{ 827 struct kaudit_record *ar; 828 829 if (audit_argv == 0) 830 return; 831 832 ar = currecord(); 833 if (ar == NULL) 834 return; 835 836 ar->k_ar.ar_arg_argv = malloc(length, M_AUDITTEXT, M_WAITOK); 837 bcopy(argv, ar->k_ar.ar_arg_argv, length); 838 ar->k_ar.ar_arg_argc = argc; 839 ARG_SET_VALID(ar, ARG_ARGV); 840} 841 842/* 843 * Audit the environment strings passed to exec. 844 */ 845void 846audit_arg_envv(char *envv, int envc, int length) 847{ 848 struct kaudit_record *ar; 849 850 if (audit_arge == 0) 851 return; 852 853 ar = currecord(); 854 if (ar == NULL) 855 return; 856 857 ar->k_ar.ar_arg_envv = malloc(length, M_AUDITTEXT, M_WAITOK); 858 bcopy(envv, ar->k_ar.ar_arg_envv, length); 859 ar->k_ar.ar_arg_envc = envc; 860 ARG_SET_VALID(ar, ARG_ENVV); 861} 862 863void 864audit_arg_rights(cap_rights_t *rightsp) 865{ 866 struct kaudit_record *ar; 867 868 ar = currecord(); 869 if (ar == NULL) 870 return; 871 872 ar->k_ar.ar_arg_rights = *rightsp; 873 ARG_SET_VALID(ar, ARG_RIGHTS); 874} 875 876void 877audit_arg_fcntl_rights(uint32_t fcntlrights) 878{ 879 struct kaudit_record *ar; 880 881 ar = currecord(); 882 if (ar == NULL) 883 return; 884 885 ar->k_ar.ar_arg_fcntl_rights = fcntlrights; 886 ARG_SET_VALID(ar, ARG_FCNTL_RIGHTS); 887} 888 889/* 890 * The close() system call uses it's own audit call to capture the path/vnode 891 * information because those pieces are not easily obtained within the system 892 * call itself. 893 */ 894void 895audit_sysclose(struct thread *td, int fd) 896{ 897 struct kaudit_record *ar; 898 struct vnode *vp; 899 struct file *fp; 900 901 KASSERT(td != NULL, ("audit_sysclose: td == NULL")); 902 903 ar = currecord(); 904 if (ar == NULL) 905 return; 906 907 audit_arg_fd(fd); 908 909 if (getvnode(td->td_proc->p_fd, fd, 0, &fp) != 0) 910 return; 911 912 vp = fp->f_vnode; 913 vn_lock(vp, LK_SHARED | LK_RETRY); 914 audit_arg_vnode1(vp); 915 VOP_UNLOCK(vp, 0); 916 fdrop(fp, td); 917} 918