1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * Copyright 2012 Milan Jurik. All rights reserved. 25 */ 26 27 /* 28 * This code has a lot in common with the original sys-suspend 29 * code. Windowing facilities have been removed, and it has been 30 * updated to use more recent API's. 31 */ 32 #include <stdio.h> 33 #include <fcntl.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <strings.h> 37 #include <unistd.h> 38 #include <libintl.h> 39 #include <locale.h> 40 #include <utility.h> 41 #include <signal.h> 42 #include <errno.h> 43 #include <setjmp.h> 44 #include <pwd.h> 45 #include <syslog.h> 46 #include <sys/types.h> 47 #include <sys/param.h> 48 #include <sys/utsname.h> 49 #include <sys/uadmin.h> 50 #include <auth_attr.h> 51 #include <auth_list.h> 52 #include <secdb.h> 53 #include <security/pam_appl.h> 54 #include <utmpx.h> 55 56 /* For audit */ 57 #include <bsm/adt.h> 58 #include <bsm/adt_event.h> 59 60 #include <sys/wait.h> 61 #include <sys/stat.h> 62 #include <sys/pm.h> 63 #include <dirent.h> 64 #include <sys/cpr.h> 65 66 /* STATICUSED */ 67 struct utmpx utmp; 68 #define NMAX (sizeof (utmp.ut_name)) 69 70 /* 71 * Authorizations used by Power Management 72 */ 73 #define AUTHNAME_SHUTDOWN "solaris.system.shutdown" 74 #define AUTHNAME_SUSPEND_RAM "solaris.system.power.suspend.ram" 75 #define AUTHNAME_SUSPEND_DISK "solaris.system.power.suspend.disk" 76 77 /* Platform specific definitions */ 78 #ifdef i386 79 #define AD_CHECK_SUSPEND AD_CHECK_SUSPEND_TO_RAM 80 #define AD_SUSPEND AD_SUSPEND_TO_RAM 81 #define ADT_FCN ADT_UADMIN_FCN_AD_SUSPEND_TO_RAM 82 #define AUTHNAME_SUSPEND AUTHNAME_SUSPEND_RAM 83 #else 84 #define AD_CHECK_SUSPEND AD_CHECK_SUSPEND_TO_DISK 85 #define AD_SUSPEND AD_SUSPEND_TO_DISK 86 #define ADT_FCN ADT_UADMIN_FCN_AD_SUSPEND_TO_DISK 87 #define AUTHNAME_SUSPEND AUTHNAME_SUSPEND_DISK 88 #endif 89 90 static int flags = 0; 91 static int no_tty = 0; 92 /* 93 * Flag definitions - could go in a header file, but there are just a few 94 */ 95 #define FORCE 0x001 96 #define NO_WARN 0x002 97 #define NO_XLOCK 0x004 98 #define SHUTDOWN 0x008 99 #define LOWPOWER 0x010 100 #define TEST 0x800 101 102 static sigjmp_buf jmp_stack; 103 static char user[NMAX + 1]; 104 static char **argvl; 105 106 107 108 /* 109 * Forward Declarations. 110 */ 111 static void pm_poweroff(void); 112 static int bringto_lowpower(void); 113 static int is_mou3(void); 114 static void suspend_error(int); 115 static int pm_check_suspend(void); 116 static void pm_suspend(void); 117 static void pm_do_auth(adt_session_data_t *); 118 119 /* 120 * External Declarations. 121 */ 122 extern int pam_tty_conv(int, struct pam_message **, 123 struct pam_response **, void *); 124 extern char *optarg; 125 126 /* 127 * Audit related code. I would also think that some of this could be 128 * in external code, as they could be useful of other apps. 129 */ 130 /* 131 * Write audit event. Could be useful in the PM library, so it is 132 * included here. For the most part it is only used by the PAM code. 133 */ 134 static void 135 pm_audit_event(adt_session_data_t *ah, au_event_t event_id, int status) 136 { 137 adt_event_data_t *event; 138 139 140 if ((event = adt_alloc_event(ah, event_id)) == NULL) { 141 return; 142 } 143 144 (void) adt_put_event(event, 145 status == PAM_SUCCESS ? ADT_SUCCESS : ADT_FAILURE, 146 status == PAM_SUCCESS ? ADT_SUCCESS : ADT_FAIL_PAM + status); 147 148 adt_free_event(event); 149 } 150 151 #define RETRY_COUNT 15 152 static int 153 change_audit_file(void) 154 { 155 pid_t pid; 156 157 if (!adt_audit_state(AUC_AUDITING)) { 158 /* auditd not running, just return */ 159 return (0); 160 } 161 162 if ((pid = fork()) == 0) { 163 (void) execl("/usr/sbin/audit", "audit", "-n", NULL); 164 (void) fprintf(stderr, gettext("error changing audit files: " 165 "%s\n"), strerror(errno)); 166 _exit(-1); 167 } else if (pid == -1) { 168 (void) fprintf(stderr, gettext("error changing audit files: " 169 "%s\n"), strerror(errno)); 170 return (-1); 171 } else { 172 pid_t rc; 173 int retries = RETRY_COUNT; 174 175 /* 176 * Wait for audit(1M) -n process to complete 177 * 178 */ 179 do { 180 if ((rc = waitpid(pid, NULL, WNOHANG)) == pid) { 181 return (0); 182 } else if (rc == -1) { 183 return (-1); 184 } else { 185 (void) sleep(1); 186 retries--; 187 } 188 189 } while (retries != 0); 190 } 191 return (-1); 192 } 193 194 static void 195 wait_for_auqueue() 196 { 197 au_stat_t au_stat; 198 int retries = 10; 199 200 while (retries-- && auditon(A_GETSTAT, (caddr_t)&au_stat, NULL) == 0) { 201 if (au_stat.as_enqueue == au_stat.as_written) { 202 break; 203 } 204 (void) sleep(1); 205 } 206 } 207 208 /* End of Audit-related code */ 209 210 /* ARGSUSED0 */ 211 static void 212 alarm_handler(int sig) 213 { 214 siglongjmp(jmp_stack, 1); 215 } 216 217 /* 218 * These are functions that would be candidates for moving to a library. 219 */ 220 221 /* 222 * pm_poweroff - similar to poweroff(1M) 223 * This should do the same auditing as poweroff(1m) would do when it 224 * becomes a libpower function. Till then we use poweroff(1m). 225 */ 226 static void 227 pm_poweroff(void) 228 { 229 if (chkauthattr(AUTHNAME_SHUTDOWN, user) != 1) { 230 (void) printf(gettext("User %s does not have correct " 231 "authorizations to shutdown this machine.\n"), user); 232 exit(1); 233 } 234 openlog("suspend", 0, LOG_DAEMON); 235 syslog(LOG_NOTICE, "System is being shut down."); 236 closelog(); 237 238 /* 239 * Call poweroff(1m) to shut down the system. 240 */ 241 (void) execl("/usr/sbin/poweroff", "poweroff", NULL); 242 243 } 244 245 /* 246 * pm_check_suspend() - Check to see if suspend is supported/enabled 247 * on this machine. 248 * Ultimately, we would prefer to get the "default" suspend type from 249 * a PM property or some other API, but for now, we know that STR is 250 * only available on x86 and STD is only available on Sparc. It does 251 * make this function quite easy, though. 252 */ 253 static int 254 pm_check_suspend(void) { 255 /* 256 * Use the uadmin(2) "CHECK" command to see if suspend is supported 257 */ 258 return (uadmin(A_FREEZE, AD_CHECK_SUSPEND, 0)); 259 } 260 261 /* 262 * This entry point _should_ be the common entry to suspend. It is in 263 * it's entirety here, but would be best moved to libpower when that 264 * is available. 265 */ 266 static void 267 pm_suspend(void) 268 { 269 int cprarg = AD_SUSPEND; 270 enum adt_uadmin_fcn fcn_id = ADT_FCN; 271 au_event_t event_id = ADT_uadmin_freeze; 272 adt_event_data_t *event = NULL; /* event to be generated */ 273 adt_session_data_t *ah = NULL; /* audit session handle */ 274 275 /* 276 * Does the user have permission to use this command? 277 */ 278 if (chkauthattr(AUTHNAME_SUSPEND, user) != 1) { 279 (void) printf(gettext("User %s does not have correct " 280 "authorizations to suspend this machine.\n"), user); 281 exit(1); 282 } 283 284 if (flags & LOWPOWER) { 285 if (bringto_lowpower() == -1) { 286 (void) printf(gettext("LowPower Failed\n")); 287 exit(1); 288 } 289 } else if (flags & TEST) { 290 /* 291 * Test mode, do checks as if a real suspend, but 292 * don't actually do the suspend. 293 */ 294 /* Check if suspend is supported */ 295 if (pm_check_suspend() == -1) { 296 suspend_error(errno); 297 } 298 299 (void) printf(gettext("TEST: Suspend would have been" 300 " performed\n")); 301 302 } else { 303 /* Check if suspend is supported */ 304 if (pm_check_suspend() == -1) { 305 suspend_error(errno); 306 } 307 308 /* 309 * We are about to suspend this machine, try and 310 * lock the screen. We don't really care if this 311 * succeeds or not, but that we actually tried. We 312 * also know that we have sufficient privileges to 313 * be here, so we lock the screen now, even if 314 * suspend actually fails. 315 * Note that garbage is sometimes displayed, and 316 * we don't really care about it, so we toss all 317 * text response. 318 * it would also be good if there were another option 319 * instead of launcing a file, as the disk might be 320 * spun down if we are suspending due to idle. 321 */ 322 if (!(flags & NO_XLOCK)) { 323 (void) system("/usr/bin/xdg-screensaver lock " 324 " >/dev/null 2>&1"); 325 } 326 327 /* Time to do the actual deed! */ 328 /* 329 * Before we actually suspend, we need to audit and 330 * "suspend" the audit files. 331 */ 332 /* set up audit session and event */ 333 if (adt_start_session(&ah, NULL, ADT_USE_PROC_DATA) == 0) { 334 if ((event = adt_alloc_event(ah, event_id)) != NULL) { 335 event->adt_uadmin_freeze.fcn = fcn_id; 336 event->adt_uadmin_freeze.mdep = NULL; 337 if (adt_put_event(event, ADT_SUCCESS, 0) != 0) { 338 (void) fprintf(stderr, gettext( 339 "%s: can't put audit event\n"), 340 argvl[0]); 341 } else { 342 wait_for_auqueue(); 343 } 344 } 345 (void) change_audit_file(); 346 } else { 347 (void) fprintf(stderr, gettext( 348 "%s: can't start audit session\n"), argvl[0]); 349 } 350 351 if (uadmin(A_FREEZE, cprarg, 0) != 0) { 352 (void) printf(gettext("Suspend Failed\n")); 353 if (flags & FORCE) { 354 /* 355 * Note, that if we actually poweroff, 356 * that the poweroff function will handle 357 * that audit trail, and the resume 358 * trail is effectively done. 359 */ 360 pm_poweroff(); 361 } else { 362 /* suspend_error() will exit. */ 363 suspend_error(errno); 364 /* 365 * Audit the suspend failure and 366 * reuse the event, but don't create one 367 * if we don't already have one. 368 */ 369 if (event != NULL) { 370 (void) adt_put_event(event, 371 ADT_FAILURE, 0); 372 } 373 } 374 } 375 376 /* 377 * Write the thaw event. 378 */ 379 if (ah != NULL) { 380 if ((event == NULL) && 381 ((event = adt_alloc_event(ah, ADT_uadmin_thaw)) 382 == NULL)) { 383 (void) fprintf(stderr, gettext( 384 "%s: can't allocate thaw audit event\n"), 385 argvl[0]); 386 } else { 387 event->adt_uadmin_thaw.fcn = fcn_id; 388 if (adt_put_event(event, ADT_SUCCESS, 0) != 0) { 389 (void) fprintf(stderr, gettext( 390 "%s: can't put thaw audit event\n"), 391 argvl[0]); 392 } 393 (void) adt_free_event(event); 394 } 395 } 396 } 397 if ((no_tty ? 0 : 1) && !(flags & NO_XLOCK)) { 398 pm_do_auth(ah); 399 } 400 401 (void) adt_end_session(ah); 402 } 403 /* End of "library" functions */ 404 405 /* 406 * Print an appropriate error message and exit. 407 */ 408 409 static void 410 suspend_error(int error) { 411 412 switch (error) { 413 case EBUSY: 414 (void) printf(gettext("suspend: " 415 "Suspend already in progress.\n\n")); 416 exit(1); 417 /*NOTREACHED*/ 418 case ENOMEM: 419 /*FALLTHROUGH*/ 420 case ENOSPC: 421 (void) printf(gettext("suspend: " 422 "Not enough resources to suspend.\n\n")); 423 exit(1); 424 /*NOTREACHED*/ 425 case ENOTSUP: 426 (void) printf(gettext("suspend: " 427 "Suspend is not supported.\n\n")); 428 exit(1); 429 /*NOTREACHED*/ 430 case EPERM: 431 (void) printf(gettext("suspend: " 432 "Not sufficient privileges.\n\n")); 433 exit(1); 434 /*NOTREACHED*/ 435 default: 436 (void) printf(gettext("suspend: " 437 "unknown error.\n\n")); 438 exit(1); 439 } 440 441 } 442 443 /* 444 * refresh_dt() - Refresh screen when 'dtgreet' is running. 445 * This is here for compatibility reasons, and could be removed once 446 * dtgreet is no longer part of the system. 447 */ 448 static int 449 refresh_dt() 450 { 451 int status; 452 struct stat stat_buf; 453 454 /* 455 * If dtgreet exists, HUP it, otherwise just let screenlock 456 * do it's thing. 457 */ 458 if ((stat("/usr/dt/bin/dtgreet", &stat_buf) == 0) && 459 (stat_buf.st_mode & S_IXUSR)) { 460 switch (fork()) { 461 case -1: 462 break; 463 case 0: 464 (void) close(1); 465 (void) execl("/usr/bin/pkill", "pkill", 466 "-HUP", "-u", "0", "-x", "dtgreet", NULL); 467 break; 468 default: 469 (void) wait(&status); 470 } 471 } 472 473 return (0); 474 } 475 476 #define DT_TMP "/var/dt/tmp" 477 478 /* 479 * On enter, the "xauthority" string has the value "XAUTHORITY=". On 480 * return, if a Xauthority file is found, concatenate it to this string, 481 * otherwise, return "xauthority" as it is. 482 */ 483 static char * 484 get_xauthority(char *xauthority) 485 { 486 pid_t uid; 487 char *home_dir; 488 struct passwd *pwd; 489 char filepath[MAXPATHLEN]; 490 struct stat stat_buf; 491 DIR *dirp; 492 struct dirent *dp; 493 char xauth[MAXPATHLEN] = ""; 494 time_t latest = 0; 495 496 uid = getuid(); 497 498 /* 499 * Determine home directory of the user. 500 */ 501 if ((home_dir = getenv("HOME")) == NULL) { 502 if ((pwd = getpwuid(uid)) == NULL) { 503 (void) printf(gettext("Error: unable to get passwd " 504 "entry for user.\n")); 505 exit(1); 506 } 507 home_dir = pwd->pw_dir; 508 } 509 if ((strlen(home_dir) + sizeof ("/.Xauthority")) >= MAXPATHLEN) { 510 (void) printf(gettext("Error: path to home directory is too " 511 "long.\n")); 512 exit(1); 513 } 514 515 /* 516 * If there is a .Xauthority file in home directory, reference it. 517 */ 518 /*LINTED*/ 519 (void) sprintf(filepath, "%s/.Xauthority", home_dir); 520 if (stat(filepath, &stat_buf) == 0) 521 return (strcat(xauthority, filepath)); 522 523 /* 524 * If Xsession can not access user's home directory, it creates the 525 * Xauthority file in "/var/dt/tmp" directory. Since the exact 526 * name of the Xauthority is not known, search the directory and 527 * find the last changed file that starts with ".Xauth" and owned 528 * by the user. Hopefully, that is the valid Xauthority file for 529 * the current X session. 530 */ 531 if ((dirp = opendir(DT_TMP)) == NULL) 532 return (xauthority); 533 534 while ((dp = readdir(dirp)) != NULL) { 535 if (strstr(dp->d_name, ".Xauth") != NULL) { 536 /*LINTED*/ 537 (void) sprintf(filepath, "%s/%s", DT_TMP, dp->d_name); 538 if (stat(filepath, &stat_buf) == -1) 539 continue; 540 if (stat_buf.st_uid != uid) 541 continue; 542 if (stat_buf.st_ctime > latest) { 543 (void) strcpy(xauth, filepath); 544 latest = stat_buf.st_ctime; 545 } 546 } 547 } 548 (void) closedir(dirp); 549 550 return (strcat(xauthority, xauth)); 551 } 552 553 /* 554 * suspend can be called in following ways: 555 * 1. from daemon (powerd) for auto-shutdown. 556 * a. there might be a OW/CDE environment 557 * b. there might not be any windowing environment 558 * 2. by a user entered command. 559 * a. the command can be entered from a cmdtool type OW/CDE tool 560 * b. the command can be entered by a user logged in on a dumb 561 * terminal. 562 * i) there might be a OW/CDE running on console 563 * and we have permission to talk to it. 564 * ii) there is no OW/CDE running on console or we 565 * don't have permission to talk to it or console 566 * itself is the dumb terminal we have logged into. 567 * 568 * In main(), we decide on the correct case and call appropriate functions. 569 */ 570 571 int 572 main(int argc, char **argv) 573 { 574 int c; 575 char display_name[MAXNAMELEN + 9] = "DISPLAY="; 576 char xauthority[MAXPATHLEN + 12] = "XAUTHORITY="; 577 struct passwd *pw; 578 579 (void) signal(SIGHUP, SIG_IGN); 580 (void) signal(SIGINT, SIG_IGN); 581 (void) signal(SIGQUIT, SIG_IGN); 582 (void) signal(SIGTSTP, SIG_IGN); 583 (void) signal(SIGTTIN, SIG_IGN); 584 (void) signal(SIGTTOU, SIG_IGN); 585 586 /* 587 * If suspend is invoked from a daemon (case 1 above), it 588 * will not have a working stdin, stdout and stderr. We need 589 * these to print proper error messages and possibly get user 590 * input. We attach them to console and hope that attachment 591 * works. 592 */ 593 if (ttyname(0) == NULL) { 594 no_tty = 1; 595 (void) dup2(open("/dev/console", O_RDONLY), 0); 596 (void) dup2(open("/dev/console", O_WRONLY), 1); 597 (void) dup2(open("/dev/console", O_WRONLY), 2); 598 } 599 600 while ((c = getopt(argc, argv, "fnxhtd:")) != EOF) { 601 switch (c) { 602 case 'f': 603 /* 604 * Force machine to poweroff if 605 * suspend fails 606 */ 607 flags |= FORCE; 608 break; 609 case 'n': 610 /* No warning popups - Obsolete */ 611 flags |= NO_WARN; 612 break; 613 case 'x': 614 /* Don't try to screenlock */ 615 flags |= NO_XLOCK; 616 break; 617 case 'h': 618 /* Do a shutdown instead of suspend */ 619 flags |= SHUTDOWN; 620 break; 621 case 'd': 622 /* Needswork */ 623 /* Set the DISPLAY value in the environment */ 624 if (strlen(optarg) >= MAXNAMELEN) { 625 (void) printf(gettext("Error: " 626 "display name is too long.\n")); 627 return (1); 628 } 629 (void) strcat(display_name, optarg); 630 if (putenv(display_name) != 0) { 631 (void) printf(gettext("Error: " 632 "unable to set DISPLAY " 633 "environment variable.\n")); 634 return (1); 635 } 636 break; 637 case 't': 638 /* Test, don't actually do any operation */ 639 flags |= TEST; 640 break; 641 default: 642 (void) printf(gettext("USAGE: suspend " 643 "[-fnxh] [-d <display>]\n")); 644 return (1); 645 } 646 } 647 648 /* 649 * The action of pressing power key and power button on a MOU-3 machine 650 * causes suspend being invoked with SYSSUSPENDDODEFAULT 651 * enviromental variable set - indicating the default action is machine 652 * dependent: for MOU-3 type machine, "LowPower" mode is the default, 653 * for all the rest, "Suspend" is the default. Existing suspend 654 * flags works the same. 655 */ 656 if (getenv("SYSSUSPENDDODEFAULT")) 657 if (is_mou3()) 658 flags |= LOWPOWER; 659 660 if ((flags & FORCE) && (flags & LOWPOWER)) 661 flags &= ~LOWPOWER; 662 663 /* 664 * Flag "-h" overrides flag "-f". 665 */ 666 if ((flags & SHUTDOWN) && (flags & FORCE)) 667 flags &= ~(FORCE | LOWPOWER); 668 669 if (flags & FORCE) 670 flags |= NO_WARN; 671 672 /* 673 * Check initally if the user has the authorizations to 674 * do either a suspend or shutdown. pm_suspend() will also 675 * make this test, so we could defer till then, but if we 676 * do it now, we at least prevent a lot of unneeded setup. 677 */ 678 pw = getpwuid(getuid()); 679 (void) strncpy(user, pw->pw_name, NMAX); 680 681 if ((flags & (FORCE|SHUTDOWN)) && 682 (chkauthattr(AUTHNAME_SHUTDOWN, pw->pw_name) != 1)) { 683 (void) printf(gettext("User does not have correct " 684 "authorizations to shutdown the machine.\n")); 685 exit(1); 686 } 687 if (!(flags & SHUTDOWN) && 688 (chkauthattr(AUTHNAME_SUSPEND, pw->pw_name) != 1)) { 689 (void) printf(gettext("User does not have correct " 690 "authorizations to suspend.\n")); 691 exit(1); 692 } 693 694 /* 695 * If we are only shutting down, there isn't much to do, just 696 * call pm_poweroff(), and let it do all the work. 697 */ 698 if (flags & SHUTDOWN) { 699 /* 700 * pm_poweroff either powers off or exits, 701 * so there is no return. 702 */ 703 if (flags & TEST) { 704 (void) printf("TEST: This machine would have " 705 "powered off\n"); 706 exit(1); 707 } else { 708 pm_poweroff(); 709 } 710 /* NOTREACHED */ 711 } 712 713 /* 714 * If XAUTHORITY environment variable is not set, try to set 715 * one up. 716 */ 717 if (getenv("XAUTHORITY") == NULL) 718 (void) putenv(get_xauthority(xauthority)); 719 720 /* 721 * In case of "suspend" being called from daemon "powerd", 722 * signal SIGALRM is blocked so use "sigset()" instead of "signal()". 723 */ 724 (void) sigset(SIGALRM, alarm_handler); 725 726 /* Call the "suspend" function to do the last of the work */ 727 pm_suspend(); 728 729 if (refresh_dt() == -1) { 730 (void) printf("%s: Failed to refresh screen.\n", argv[0]); 731 return (1); 732 } 733 return (0); 734 } 735 736 #include <sys/pm.h> 737 738 /* 739 * Note that some of these functions are more relevant to Sparc platforms, 740 * but they do function properly on other platforms, they just don't do 741 * as much. 742 */ 743 /* 744 * bringto_lowpower() 745 * This tells the PM framework to put the devices it controls in an idle 746 * state. The framework only complains if a device that *must* be idle 747 * doesn't succeed in getting there. 748 */ 749 static int 750 bringto_lowpower() 751 { 752 int fd; 753 754 if ((fd = open("/dev/pm", O_RDWR)) < 0) { 755 (void) printf(gettext("Can't open /dev/pm\n")); 756 return (-1); 757 } 758 759 if (ioctl(fd, PM_IDLE_DOWN, NULL) < 0) { 760 (void) printf(gettext("Failed to bring system " 761 "to low power mode.\n")); 762 (void) close(fd); 763 return (-1); 764 } 765 (void) close(fd); 766 return (0); 767 } 768 769 #include <sys/cpr.h> 770 771 /* 772 * Though this test is predominantly used on Sparc, it will run on other 773 * platforms, and might be usefull one day on those. 774 */ 775 static int 776 is_mou3() 777 { 778 struct cprconfig cf; 779 int fd; 780 int found = 0; 781 782 if ((fd = open(CPR_CONFIG, O_RDONLY)) < 0) { 783 (void) printf(gettext("Can't open /etc/.cpr_config file.")); 784 return (found); 785 } 786 787 if (read(fd, (void *) &cf, sizeof (cf)) != sizeof (cf)) { 788 (void) printf(gettext("Can't read /etc/.cpr_config file.")); 789 } else { 790 found = cf.is_autopm_default; 791 } 792 793 (void) close(fd); 794 return (found); 795 } 796 797 /* 798 * Reauthenticate the user on return from suspend. 799 * This is here and not in the PAM-specific file, as there are 800 * items specific to sys-suspend, and not generic to PAM. This may 801 * become part of a future PM library. The audit handle is passed, 802 * as the pm_suspend code actually starts an audit session, so it 803 * makes sense to just continue to use it. If it were separated 804 * from the pm_suspend code, it will need to open a new session. 805 */ 806 #define DEF_ATTEMPTS 3 807 static void 808 pm_do_auth(adt_session_data_t *ah) 809 { 810 pam_handle_t *pm_pamh; 811 int err; 812 int pam_flag = 0; 813 int chpasswd_tries; 814 struct pam_conv pam_conv = {pam_tty_conv, NULL}; 815 816 if (user[0] == '\0') 817 return; 818 819 if ((err = pam_start("sys-suspend", user, &pam_conv, 820 &pm_pamh)) != PAM_SUCCESS) 821 return; 822 823 pam_flag = PAM_DISALLOW_NULL_AUTHTOK; 824 825 do { 826 err = pam_authenticate(pm_pamh, pam_flag); 827 828 if (err == PAM_SUCCESS) { 829 err = pam_acct_mgmt(pm_pamh, pam_flag); 830 831 if (err == PAM_NEW_AUTHTOK_REQD) { 832 chpasswd_tries = 0; 833 834 do { 835 err = pam_chauthtok(pm_pamh, 836 PAM_CHANGE_EXPIRED_AUTHTOK); 837 chpasswd_tries++; 838 839 } while ((err == PAM_AUTHTOK_ERR || 840 err == PAM_TRY_AGAIN) && 841 chpasswd_tries < DEF_ATTEMPTS); 842 pm_audit_event(ah, ADT_passwd, err); 843 } 844 err = pam_setcred(pm_pamh, PAM_REFRESH_CRED); 845 } 846 if (err != PAM_SUCCESS) { 847 (void) fprintf(stdout, "%s\n", 848 pam_strerror(pm_pamh, err)); 849 pm_audit_event(ah, ADT_screenunlock, err); 850 } 851 } while (err != PAM_SUCCESS); 852 pm_audit_event(ah, ADT_passwd, 0); 853 854 (void) pam_end(pm_pamh, err); 855 } 856