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   1 /*
   2  * Amanda, The Advanced Maryland Automatic Network Disk Archiver
   3  * Copyright (c) 1991-1998 University of Maryland at College Park
   4  * All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and its
   7  * documentation for any purpose is hereby granted without fee, provided that
   8  * the above copyright notice appear in all copies and that both that
   9  * copyright notice and this permission notice appear in supporting
  10  * documentation, and that the name of U.M. not be used in advertising or
  11  * publicity pertaining to distribution of the software without specific,
  12  * written prior permission.  U.M. makes no representations about the
  13  * suitability of this software for any purpose.  It is provided "as is"
  14  * without express or implied warranty.
  15  *
  16  * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
  18  * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  19  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  20  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  21  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  *
  23  * Author: James da Silva, Systems Design and Analysis Group
  24  *                         Computer Science Department
  25  *                         University of Maryland at College Park
  26  */
  27 /*
  28  * $Id: selfcheck.c 10421 2008-03-06 18:48:30Z martineau $
  29  *
  30  * do self-check and send back any error messages
  31  */
  32
  33 #include "amanda.h"
  34 #include "fsusage.h"
  35 #include "getfsent.h"
  36 #include "amandates.h"
  37 #include "clock.h"
  38 #include "util.h"
  39 #include "pipespawn.h"
  40 #include "amfeatures.h"
  41 #include "client_util.h"
  42 #include "conffile.h"
  43 #include "amandad.h"
  44 #include "amxml.h"
  45 #include "base64.h"
  46
  47 #ifdef SAMBA_CLIENT
  48 #include "findpass.h"
  49 #endif
  50
  51 int need_samba=0;
  52 int need_rundump=0;
  53 int need_dump=0;
  54 int need_restore=0;
  55 int need_vdump=0;
  56 int need_vrestore=0;
  57 int need_xfsdump=0;
  58 int need_xfsrestore=0;
  59 int need_vxdump=0;
  60 int need_vxrestore=0;
  61 int need_runtar=0;
  62 int need_gnutar=0;
  63 int need_compress_path=0;
  64 int need_calcsize=0;
  65 int need_global_check=0;
  66 int program_is_application_api=0;
  67
  68 static char *amandad_auth = NULL;
  69 static am_feature_t *our_features = NULL;
  70 static char *our_feature_string = NULL;
  71 static g_option_t *g_options = NULL;
  72
  73 /* local functions */
  74 int main(int argc, char **argv);
  75
  76 static void check_options(dle_t *dle);
  77 static void check_disk(dle_t *dle);
  78 static void check_overall(void);
  79 static int check_file_exist(char *filename);
  80 static void check_space(char *dir, off_t kbytes);
  81
  82 int
  83 main(
  84     int         argc,
  85     char **     argv)
  86 {
  87     char *line = NULL;
  88     char *qdisk = NULL;
  89     char *qamdevice = NULL;
  90     char *optstr = NULL;
  91     char *err_extra = NULL;
  92     char *s, *fp;
  93     int ch;
  94     dle_t *dle;
  95     int level;
  96     GSList *errlist;
  97     level_t *alevel;
  98
  99     /* initialize */
 100
 101     /*
 102      * Configure program for internationalization:
 103      *   1) Only set the message locale for now.
 104      *   2) Set textdomain for all amanda related programs to "amanda"
 105      *      We don't want to be forced to support dozens of message catalogs.
 106      */
 107     setlocale(LC_MESSAGES, "C");
 108     textdomain("amanda");
 109
 110     safe_fd(-1, 0);
 111     openbsd_fd_inform();
 112     safe_cd();
 113
 114     set_pname("selfcheck");
 115
 116     /* Don't die when child closes pipe */
 117     signal(SIGPIPE, SIG_IGN);
 118
 119     add_amanda_log_handler(amanda_log_stderr);
 120     add_amanda_log_handler(amanda_log_syslog);
 121     dbopen(DBG_SUBDIR_CLIENT);
 122     startclock();
 123     dbprintf(_("version %s\n"), VERSION);
 124
 125     if(argc > 2 && strcmp(argv[1], "amandad") == 0) {
 126         amandad_auth = stralloc(argv[2]);
 127     }
 128
 129     config_init(CONFIG_INIT_CLIENT, NULL);
 130     /* (check for config errors comes later) */
 131
 132     check_running_as(RUNNING_AS_CLIENT_LOGIN);
 133
 134     our_features = am_init_feature_set();
 135     our_feature_string = am_feature_to_string(our_features);
 136
 137     /* handle all service requests */
 138
 139     /*@ignore@*/
 140     for(; (line = agets(stdin)) != NULL; free(line)) {
 141     /*@end@*/
 142         if (line[0] == '\0')
 143             continue;
 144
 145         if(strncmp_const(line, "OPTIONS ") == 0) {
 146             g_options = parse_g_options(line+8, 1);
 147             if(!g_options->hostname) {
 148                 g_options->hostname = alloc(MAX_HOSTNAME_LENGTH+1);
 149                 gethostname(g_options->hostname, MAX_HOSTNAME_LENGTH);
 150                 g_options->hostname[MAX_HOSTNAME_LENGTH] = '\0';
 151             }
 152
 153             g_printf("OPTIONS ");
 154             if(am_has_feature(g_options->features, fe_rep_options_features)) {
 155                 g_printf("features=%s;", our_feature_string);
 156             }
 157             if(am_has_feature(g_options->features, fe_rep_options_hostname)) {
 158                 g_printf("hostname=%s;", g_options->hostname);
 159             }
 160             g_printf("\n");
 161             fflush(stdout);
 162
 163             if (g_options->config) {
 164                 /* overlay this configuration on the existing (nameless) configuration */
 165                 config_init(CONFIG_INIT_CLIENT | CONFIG_INIT_EXPLICIT_NAME | CONFIG_INIT_OVERLAY,
 166                             g_options->config);
 167
 168                 dbrename(get_config_name(), DBG_SUBDIR_CLIENT);
 169             }
 170
 171             /* check for any config errors now */
 172             if (config_errors(&errlist) >= CFGERR_ERRORS) {
 173                 char *errstr = config_errors_to_error_string(errlist);
 174                 g_printf("%s\n", errstr);
 175                 dbclose();
 176                 return 1;
 177             }
 178
 179             if (am_has_feature(g_options->features, fe_req_xml)) {
 180                 break;
 181             }
 182             continue;
 183         }
 184
 185         dle = alloc_dle();
 186         s = line;
 187         ch = *s++;
 188
 189         skip_whitespace(s, ch);                 /* find program name */
 190         if (ch == '\0') {
 191             goto err;                           /* no program */
 192         }
 193         dle->program = s - 1;
 194         skip_non_whitespace(s, ch);
 195         s[-1] = '\0';                           /* terminate the program name */
 196
 197         dle->program_is_application_api = 0;
 198         if(strcmp(dle->program,"APPLICATION")==0) {
 199             dle->program_is_application_api = 1;
 200             skip_whitespace(s, ch);             /* find dumper name */
 201             if (ch == '\0') {
 202                 goto err;                       /* no program */
 203             }
 204             dle->program = s - 1;
 205             skip_non_whitespace(s, ch);
 206             s[-1] = '\0';                       /* terminate the program name */
 207         }
 208
 209         if(strncmp_const(dle->program, "CALCSIZE") == 0) {
 210             skip_whitespace(s, ch);             /* find program name */
 211             if (ch == '\0') {
 212                 goto err;                       /* no program */
 213             }
 214             dle->program = s - 1;
 215             skip_non_whitespace(s, ch);
 216             s[-1] = '\0';
 217             dle->estimatelist = g_slist_append(dle->estimatelist,
 218                                                GINT_TO_POINTER(ES_CALCSIZE));
 219         }
 220         else {
 221             dle->estimatelist = g_slist_append(dle->estimatelist,
 222                                                GINT_TO_POINTER(ES_CLIENT));
 223         }
 224
 225         skip_whitespace(s, ch);                 /* find disk name */
 226         if (ch == '\0') {
 227             goto err;                           /* no disk */
 228         }
 229         qdisk = s - 1;
 230         skip_quoted_string(s, ch);
 231         s[-1] = '\0';                           /* terminate the disk name */
 232         dle->disk = unquote_string(qdisk);
 233
 234         skip_whitespace(s, ch);                 /* find the device or level */
 235         if (ch == '\0') {
 236             goto err;                           /* no device or level */
 237         }
 238         if(!isdigit((int)s[-1])) {
 239             fp = s - 1;
 240             skip_quoted_string(s, ch);
 241              s[-1] = '\0';                      /* terminate the device */
 242             qamdevice = stralloc(fp);
 243             dle->device = unquote_string(qamdevice);
 244             skip_whitespace(s, ch);             /* find level number */
 245         }
 246         else {
 247             dle->device = stralloc(dle->disk);
 248             qamdevice = stralloc(qdisk);
 249         }
 250
 251                                                 /* find level number */
 252         if (ch == '\0' || sscanf(s - 1, "%d", &level) != 1) {
 253             goto err;                           /* bad level */
 254         }
 255         alevel = g_new0(level_t, 1);
 256         alevel->level = level;
 257         dle->levellist = g_slist_append(dle->levellist, alevel);
 258         skip_integer(s, ch);
 259
 260         skip_whitespace(s, ch);
 261         if (ch && strncmp_const_skip(s - 1, "OPTIONS ", s, ch) == 0) {
 262             skip_whitespace(s, ch);             /* find the option string */
 263             if(ch == '\0') {
 264                 goto err;                       /* bad options string */
 265             }
 266             optstr = s - 1;
 267             skip_quoted_string(s, ch);
 268             s[-1] = '\0';                       /* terminate the options */
 269             parse_options(optstr, dle, g_options->features, 1);
 270             /*@ignore@*/
 271
 272             check_options(dle);
 273             check_disk(dle);
 274
 275             /*@end@*/
 276         } else if (ch == '\0') {
 277             /* check all since no option */
 278             need_samba=1;
 279             need_rundump=1;
 280             need_dump=1;
 281             need_restore=1;
 282             need_vdump=1;
 283             need_vrestore=1;
 284             need_xfsdump=1;
 285             need_xfsrestore=1;
 286             need_vxdump=1;
 287             need_vxrestore=1;
 288             need_runtar=1;
 289             need_gnutar=1;
 290             need_compress_path=1;
 291             need_calcsize=1;
 292             need_global_check=1;
 293             /*@ignore@*/
 294             check_disk(dle);
 295             /*@end@*/
 296         } else {
 297             goto err;                           /* bad syntax */
 298         }
 299         amfree(qamdevice);
 300     }
 301     if (g_options == NULL) {
 302         g_printf(_("ERROR [Missing OPTIONS line in selfcheck input]\n"));
 303         error(_("Missing OPTIONS line in selfcheck input\n"));
 304         /*NOTREACHED*/
 305     }
 306
 307     if (am_has_feature(g_options->features, fe_req_xml)) {
 308         char  *errmsg = NULL;
 309         dle_t *dles, *dle;
 310
 311         dles = amxml_parse_node_FILE(stdin, &errmsg);
 312         if (errmsg) {
 313             err_extra = errmsg;
 314             goto err;
 315         }
 316         for (dle = dles; dle != NULL; dle = dle->next) {
 317             run_client_scripts(EXECUTE_ON_PRE_HOST_AMCHECK, g_options, dle,
 318                                stdout);
 319         }
 320         for (dle = dles; dle != NULL; dle = dle->next) {
 321             check_options(dle);
 322             run_client_scripts(EXECUTE_ON_PRE_DLE_AMCHECK, g_options, dle,
 323                                stdout);
 324             check_disk(dle);
 325             run_client_scripts(EXECUTE_ON_POST_DLE_AMCHECK, g_options, dle,
 326                                stdout);
 327         }
 328         for (dle = dles; dle != NULL; dle = dle->next) {
 329             run_client_scripts(EXECUTE_ON_POST_HOST_AMCHECK, g_options, dle,
 330                                stdout);
 331         }
 332     }
 333
 334     check_overall();
 335
 336     amfree(line);
 337     amfree(our_feature_string);
 338     am_release_feature_set(our_features);
 339     our_features = NULL;
 340     free_g_options(g_options);
 341
 342     dbclose();
 343     return 0;
 344
 345  err:
 346     if (err_extra) {
 347         g_printf(_("ERROR [FORMAT ERROR IN REQUEST PACKET %s]\n"), err_extra);
 348         dbprintf(_("REQ packet is bogus: %s\n"), err_extra);
 349     } else {
 350         g_printf(_("ERROR [FORMAT ERROR IN REQUEST PACKET]\n"));
 351         dbprintf(_("REQ packet is bogus\n"));
 352     }
 353     dbclose();
 354     return 1;
 355 }
 356
 357
 358 static void
 359 check_options(
 360     dle_t *dle)
 361 {
 362     if (GPOINTER_TO_INT(dle->estimatelist->data) == ES_CALCSIZE) {
 363         need_calcsize=1;
 364     }
 365
 366     if (strcmp(dle->program,"GNUTAR") == 0) {
 367         need_gnutar=1;
 368         if(dle->device && dle->device[0] == '/' && dle->device[1] == '/') {
 369             if(dle->exclude_file && dle->exclude_file->nb_element > 1) {
 370                 g_printf(_("ERROR [samba support only one exclude file]\n"));
 371             }
 372             if (dle->exclude_list && dle->exclude_list->nb_element > 0 &&
 373                 dle->exclude_optional==0) {
 374                 g_printf(_("ERROR [samba does not support exclude list]\n"));
 375             }
 376             if (dle->include_file && dle->include_file->nb_element > 0) {
 377                 g_printf(_("ERROR [samba does not support include file]\n"));
 378             }
 379             if (dle->include_list && dle->include_list->nb_element > 0 &&
 380                 dle->include_optional==0) {
 381                 g_printf(_("ERROR [samba does not support include list]\n"));
 382             }
 383             need_samba=1;
 384         } else {
 385             int nb_exclude = 0;
 386             int nb_include = 0;
 387             char *file_exclude = NULL;
 388             char *file_include = NULL;
 389
 390             if (dle->exclude_file) nb_exclude += dle->exclude_file->nb_element;
 391             if (dle->exclude_list) nb_exclude += dle->exclude_list->nb_element;
 392             if (dle->include_file) nb_include += dle->include_file->nb_element;
 393             if (dle->include_list) nb_include += dle->include_list->nb_element;
 394
 395             if (nb_exclude > 0) file_exclude = build_exclude(dle, 1);
 396             if (nb_include > 0) file_include = build_include(dle, 1);
 397
 398             amfree(file_exclude);
 399             amfree(file_include);
 400
 401             need_runtar=1;
 402         }
 403     }
 404
 405     if (strcmp(dle->program,"DUMP") == 0) {
 406         if (dle->exclude_file && dle->exclude_file->nb_element > 0) {
 407             g_printf(_("ERROR [DUMP does not support exclude file]\n"));
 408         }
 409         if (dle->exclude_list && dle->exclude_list->nb_element > 0) {
 410             g_printf(_("ERROR [DUMP does not support exclude list]\n"));
 411         }
 412         if (dle->include_file && dle->include_file->nb_element > 0) {
 413             g_printf(_("ERROR [DUMP does not support include file]\n"));
 414         }
 415         if (dle->include_list && dle->include_list->nb_element > 0) {
 416             g_printf(_("ERROR [DUMP does not support include list]\n"));
 417         }
 418 #ifdef USE_RUNDUMP
 419         need_rundump=1;
 420 #endif
 421 #ifndef AIX_BACKUP
 422 #ifdef VDUMP
 423 #ifdef DUMP
 424         if (dle->device && strcmp(amname_to_fstype(dle->device), "advfs") == 0)
 425 #else
 426         if (1)
 427 #endif
 428         {
 429             need_vdump=1;
 430             need_rundump=1;
 431             if (dle->create_index)
 432                 need_vrestore=1;
 433         }
 434         else
 435 #endif /* VDUMP */
 436 #ifdef XFSDUMP
 437 #ifdef DUMP
 438         if (dle->device && strcmp(amname_to_fstype(dle->device), "xfs") == 0)
 439 #else
 440         if (1)
 441 #endif
 442         {
 443             need_xfsdump=1;
 444             need_rundump=1;
 445             if (dle->create_index)
 446                 need_xfsrestore=1;
 447         }
 448         else
 449 #endif /* XFSDUMP */
 450 #ifdef VXDUMP
 451 #ifdef DUMP
 452         if (dle->device && strcmp(amname_to_fstype(dle->device), "vxfs") == 0)
 453 #else
 454         if (1)
 455 #endif
 456         {
 457             need_vxdump=1;
 458             if (dle->create_index)
 459                 need_vxrestore=1;
 460         }
 461         else
 462 #endif /* VXDUMP */
 463         {
 464             need_dump=1;
 465             if (dle->create_index)
 466                 need_restore=1;
 467         }
 468 #else
 469         /* AIX backup program */
 470         need_dump=1;
 471         if (dle->create_index)
 472             need_restore=1;
 473 #endif
 474     }
 475     if ((dle->compress == COMP_BEST) || (dle->compress == COMP_FAST)
 476                 || (dle->compress == COMP_CUST)) {
 477         need_compress_path=1;
 478     }
 479     if (dle->auth && amandad_auth) {
 480         if (strcasecmp(dle->auth, amandad_auth) != 0) {
 481             g_fprintf(stdout,_("ERROR [client configured for auth=%s while server requested '%s']\n"),
 482                     amandad_auth, dle->auth);
 483             if (strcmp(dle->auth, "ssh") == 0)  {
 484                 g_fprintf(stderr, _("ERROR [The auth in ~/.ssh/authorized_keys "
 485                                   "should be \"--auth=ssh\", or use another auth "
 486                                   " for the DLE]\n"));
 487             }
 488             else {
 489                 g_fprintf(stderr, _("ERROR [The auth in the inetd/xinetd configuration "
 490                                   " must be the same as the DLE]\n"));
 491             }
 492         }
 493     }
 494 }
 495
 496 static void
 497 check_disk(
 498     dle_t *dle)
 499 {
 500     char *device = NULL;
 501     char *err = NULL;
 502     char *user_and_password = NULL;
 503     char *domain = NULL;
 504     char *share = NULL, *subdir = NULL;
 505     size_t lpass = 0;
 506     int amode = R_OK;
 507     int access_result;
 508     char *access_type;
 509     char *extra_info = NULL;
 510     char *qdisk = NULL;
 511     char *qamdevice = NULL;
 512     char *qdevice = NULL;
 513
 514     if (dle->disk) {
 515         need_global_check=1;
 516         qdisk = quote_string(dle->disk);
 517         qamdevice = quote_string(dle->device);
 518         device = stralloc("nodevice");
 519         dbprintf(_("checking disk %s\n"), qdisk);
 520         if (GPOINTER_TO_INT(dle->estimatelist->data) == ES_CALCSIZE) {
 521             if (dle->device[0] == '/' && dle->device[1] == '/') {
 522                 err = vstrallocf(
 523                     _("Can't use CALCSIZE for samba estimate, use CLIENT: %s"),
 524                     dle->device);
 525                 goto common_exit;
 526             }
 527         }
 528
 529         if (strcmp(dle->program, "GNUTAR")==0) {
 530             if(dle->device[0] == '/' && dle->device[1] == '/') {
 531                 #ifdef SAMBA_CLIENT
 532                 int nullfd, checkerr;
 533                 int passwdfd;
 534                 char *pwtext;
 535                 size_t pwtext_len;
 536                 pid_t checkpid;
 537                 amwait_t retstat;
 538                 pid_t wpid;
 539                 int rc;
 540                 char *line;
 541                 char *sep;
 542                 FILE *ferr;
 543                 char *pw_fd_env;
 544                 int errdos;
 545
 546                 parsesharename(dle->device, &share, &subdir);
 547                 if (!share) {
 548                     err = vstrallocf(
 549                               _("cannot parse for share/subdir disk entry %s"),
 550                               dle->device);
 551                     goto common_exit;
 552                 }
 553                 if ((subdir) && (SAMBA_VERSION < 2)) {
 554                     err = vstrallocf(_("subdirectory specified for share '%s' but, samba is not v2 or better"),
 555                                      dle->device);
 556                     goto common_exit;
 557                 }
 558                 if ((user_and_password = findpass(share, &domain)) == NULL) {
 559                     err = vstrallocf(_("cannot find password for %s"),
 560                                      dle->device);
 561                     goto common_exit;
 562                 }
 563                 lpass = strlen(user_and_password);
 564                 if ((pwtext = strchr(user_and_password, '%')) == NULL) {
 565                     err = vstrallocf(
 566                                 _("password field not \'user%%pass\' for %s"),
 567                                 dle->device);
 568                     goto common_exit;
 569                 }
 570                 *pwtext++ = '\0';
 571                 pwtext_len = (size_t)strlen(pwtext);
 572                 amfree(device);
 573                 if ((device = makesharename(share, 0)) == NULL) {
 574                     err = vstrallocf(_("cannot make share name of %s"), share);
 575                     goto common_exit;
 576                 }
 577
 578                 if ((nullfd = open("/dev/null", O_RDWR)) == -1) {
 579                     err = vstrallocf(_("Cannot access /dev/null : %s"),
 580                                      strerror(errno));
 581                     goto common_exit;
 582                 }
 583
 584                 if (pwtext_len > 0) {
 585                     pw_fd_env = "PASSWD_FD";
 586                 } else {
 587                     pw_fd_env = "dummy_PASSWD_FD";
 588                 }
 589                 checkpid = pipespawn(SAMBA_CLIENT, STDERR_PIPE|PASSWD_PIPE, 0,
 590                                      &nullfd, &nullfd, &checkerr,
 591                                      pw_fd_env, &passwdfd,
 592                                      "smbclient",
 593                                      device,
 594                                      *user_and_password ? "-U" : skip_argument,
 595                                      *user_and_password ? user_and_password
 596                                                         : skip_argument,
 597                                      "-E",
 598                                      domain ? "-W" : skip_argument,
 599                                      domain ? domain : skip_argument,
 600 #if SAMBA_VERSION >= 2
 601                                      subdir ? "-D" : skip_argument,
 602                                      subdir ? subdir : skip_argument,
 603 #endif
 604                                      "-c", "quit",
 605                                      NULL);
 606                 amfree(domain);
 607                 aclose(nullfd);
 608                 /*@ignore@*/
 609                 if ((pwtext_len > 0) &&
 610                     full_write(passwdfd, pwtext, pwtext_len) < pwtext_len) {
 611                     err = vstrallocf(_("password write failed: %s: %s"),
 612                                      dle->device, strerror(errno));
 613                     aclose(passwdfd);
 614                     goto common_exit;
 615                 }
 616                 /*@end@*/
 617                 memset(user_and_password, '\0', (size_t)lpass);
 618                 amfree(user_and_password);
 619                 aclose(passwdfd);
 620                 ferr = fdopen(checkerr, "r");
 621                 if (!ferr) {
 622                     g_printf(_("ERROR [Can't fdopen: %s]\n"), strerror(errno));
 623                     error(_("Can't fdopen: %s"), strerror(errno));
 624                     /*NOTREACHED*/
 625                 }
 626                 sep = "";
 627                 errdos = 0;
 628                 for(sep = ""; (line = agets(ferr)) != NULL; free(line)) {
 629                     if (line[0] == '\0')
 630                         continue;
 631                     strappend(extra_info, sep);
 632                     strappend(extra_info, line);
 633                     sep = ": ";
 634                     if(strstr(line, "ERRDOS") != NULL) {
 635                         errdos = 1;
 636                     }
 637                 }
 638                 afclose(ferr);
 639                 checkerr = -1;
 640                 rc = 0;
 641                 sep = "";
 642                 while ((wpid = wait(&retstat)) != -1) {
 643                     if (!WIFEXITED(retstat) || WEXITSTATUS(retstat) != 0) {
 644                         char *exitstr = str_exit_status("smbclient", retstat);
 645                         strappend(err, sep);
 646                         strappend(err, exitstr);
 647                         sep = "\n";
 648                         amfree(exitstr);
 649
 650                         rc = 1;
 651                     }
 652                 }
 653                 if (errdos != 0 || rc != 0) {
 654                     if (extra_info) {
 655                         err = newvstrallocf(err,
 656                                             _("samba access error: %s: %s %s"),
 657                                             dle->device, extra_info, err);
 658                         amfree(extra_info);
 659                     } else {
 660                         err = newvstrallocf(err,
 661                                             _("samba access error: %s: %s"),
 662                                            dle->device, err);
 663                     }
 664                 }
 665 #else
 666                 err = vstrallocf(
 667                               _("This client is not configured for samba: %s"),
 668                               qdisk);
 669 #endif
 670                 goto common_exit;
 671             }
 672             amode = F_OK;
 673             amfree(device);
 674             device = amname_to_dirname(dle->device);
 675         } else if (strcmp(dle->program, "DUMP") == 0) {
 676             if(dle->device[0] == '/' && dle->device[1] == '/') {
 677                 err = vstrallocf(
 678                   _("The DUMP program cannot handle samba shares, use GNUTAR: %s"),
 679                   qdisk);
 680                 goto common_exit;
 681             }
 682 #ifdef VDUMP                                                            /* { */
 683 #ifdef DUMP                                                             /* { */
 684             if (strcmp(amname_to_fstype(dle->device), "advfs") == 0)
 685 #else                                                                   /* }{*/
 686             if (1)
 687 #endif                                                                  /* } */
 688             {
 689                 amfree(device);
 690                 device = amname_to_dirname(dle->device);
 691                 amode = F_OK;
 692             } else
 693 #endif                                                                  /* } */
 694             {
 695                 amfree(device);
 696                 device = amname_to_devname(dle->device);
 697 #ifdef USE_RUNDUMP
 698                 amode = F_OK;
 699 #else
 700                 amode = R_OK;
 701 #endif
 702             }
 703         }
 704     }
 705     if (dle->program_is_application_api) {
 706         pid_t                    application_api_pid;
 707         backup_support_option_t *bsu;
 708         int                      app_err[2];
 709         GPtrArray               *errarray;
 710
 711         bsu = backup_support_option(dle->program, g_options, dle->disk,
 712                                     dle->device, &errarray);
 713
 714         if (!bsu) {
 715             char  *line;
 716             guint  i;
 717             for (i=0; i < errarray->len; i++) {
 718                 line = g_ptr_array_index(errarray, i);
 719                 fprintf(stdout, _("ERROR Application '%s': %s\n"),
 720                         dle->program, line);
 721                 amfree(line);
 722             }
 723             err = vstrallocf(_("Application '%s': can't run support command"),
 724                              dle->program);
 725             goto common_exit;
 726         }
 727
 728         if (dle->data_path == DATA_PATH_AMANDA &&
 729             (bsu->data_path_set & DATA_PATH_AMANDA)==0) {
 730             g_printf("ERROR application %s doesn't support amanda data-path\n",
 731                      dle->program);
 732         }
 733         if (dle->data_path == DATA_PATH_DIRECTTCP &&
 734             (bsu->data_path_set & DATA_PATH_DIRECTTCP)==0) {
 735             g_printf("ERROR application %s doesn't support directtcp data-path\n",
 736                      dle->program);
 737         }
 738         if (GPOINTER_TO_INT(dle->estimatelist->data) == ES_CALCSIZE &&
 739                             !bsu->calcsize) {
 740             g_printf("ERROR application %s doesn't support calcsize estimate\n",
 741                      dle->program);
 742         }
 743         if (dle->include_file && dle->include_file->nb_element > 0 &&
 744             !bsu->include_file) {
 745             g_printf("ERROR application %s doesn't support include-file\n",
 746                    dle->program);
 747         }
 748         if (dle->include_list && dle->include_list->nb_element > 0 &&
 749             !bsu->include_list) {
 750             g_printf("ERROR application %s doesn't support include-list\n",
 751                    dle->program);
 752         }
 753         if (dle->include_optional && !bsu->include_optional) {
 754             g_printf("ERROR application %s doesn't support optional include\n",
 755                    dle->program);
 756         }
 757         if (dle->exclude_file && dle->exclude_file->nb_element > 0 &&
 758             !bsu->exclude_file) {
 759             g_printf("ERROR application %s doesn't support exclude-file\n",
 760                    dle->program);
 761         }
 762         if (dle->exclude_list && dle->exclude_list->nb_element > 0 &&
 763             !bsu->exclude_list) {
 764             g_printf("ERROR application %s doesn't support exclude-list\n",
 765                    dle->program);
 766         }
 767         if (dle->exclude_optional && !bsu->exclude_optional) {
 768             g_printf("ERROR application %s doesn't support optional exclude\n",
 769                    dle->program);
 770         }
 771         fflush(stdout);fflush(stderr);
 772
 773         if (pipe(app_err) < 0) {
 774             err = vstrallocf(_("Application '%s': can't create pipe"),
 775                              dle->program);
 776             goto common_exit;
 777         }
 778
 779         switch (application_api_pid = fork()) {
 780         case -1:
 781             err = vstrallocf(_("fork failed: %s"), strerror(errno));
 782             goto common_exit;
 783
 784         case 0: /* child */
 785             {
 786                 GPtrArray *argv_ptr = g_ptr_array_new();
 787                 guint i;
 788                 char *cmd = vstralloc(APPLICATION_DIR, "/", dle->program, NULL);
 789                 GSList   *scriptlist;
 790                 script_t *script;
 791                 estimatelist_t el;
 792                 char *cmdline;
 793
 794                 aclose(app_err[0]);
 795                 dup2(app_err[1], 2);
 796
 797                 g_ptr_array_add(argv_ptr, stralloc(dle->program));
 798                 g_ptr_array_add(argv_ptr, stralloc("selfcheck"));
 799                 if (bsu->message_line == 1) {
 800                     g_ptr_array_add(argv_ptr, stralloc("--message"));
 801                     g_ptr_array_add(argv_ptr, stralloc("line"));
 802                 }
 803                 if (g_options->config != NULL && bsu->config == 1) {
 804                     g_ptr_array_add(argv_ptr, stralloc("--config"));
 805                     g_ptr_array_add(argv_ptr, stralloc(g_options->config));
 806                 }
 807                 if (g_options->hostname != NULL && bsu->host == 1) {
 808                     g_ptr_array_add(argv_ptr, stralloc("--host"));
 809                     g_ptr_array_add(argv_ptr, stralloc(g_options->hostname));
 810                 }
 811                 if (dle->disk != NULL && bsu->disk == 1) {
 812                     g_ptr_array_add(argv_ptr, stralloc("--disk"));
 813                     g_ptr_array_add(argv_ptr, stralloc(dle->disk));
 814                 }
 815                 if (dle->device) {
 816                     g_ptr_array_add(argv_ptr, stralloc("--device"));
 817                     g_ptr_array_add(argv_ptr, stralloc(dle->device));
 818                 }
 819                 if (dle->create_index && bsu->index_line == 1) {
 820                     g_ptr_array_add(argv_ptr, stralloc("--index"));
 821                     g_ptr_array_add(argv_ptr, stralloc("line"));
 822                 }
 823                 if (dle->record && bsu->record == 1) {
 824                     g_ptr_array_add(argv_ptr, stralloc("--record"));
 825                 }
 826
 827                 for (el = dle->estimatelist; el != NULL; el=el->next) {
 828                     estimate_t estimate = (estimate_t)GPOINTER_TO_INT(el->data);
 829                     if (estimate == ES_CALCSIZE && bsu->calcsize == 1) {
 830                         g_ptr_array_add(argv_ptr, stralloc("--calcsize"));
 831                     }
 832                 }
 833                 application_property_add_to_argv(argv_ptr, dle, bsu,
 834                                                  g_options->features);
 835
 836                 for (scriptlist = dle->scriptlist; scriptlist != NULL;
 837                      scriptlist = scriptlist->next) {
 838                     script = (script_t *)scriptlist->data;
 839                     if (script->result && script->result->proplist) {
 840                         property_add_to_argv(argv_ptr,
 841                                              script->result->proplist);
 842                     }
 843                 }
 844
 845                 g_ptr_array_add(argv_ptr, NULL);
 846
 847                 cmdline = stralloc(cmd);
 848                 for (i = 0; i < argv_ptr->len-1; i++) {
 849                     char *quoted = quote_string(
 850                                         (char *)g_ptr_array_index(argv_ptr,i));
 851                     cmdline = vstrextend(&cmdline, " ", quoted, NULL);
 852                     amfree(quoted);
 853                 }
 854                 dbprintf(_("Spawning \"%s\" in pipeline\n"), cmdline);
 855                 amfree(cmdline);
 856
 857                 safe_fd(-1, 0);
 858                 execve(cmd, (char **)argv_ptr->pdata, safe_env());
 859                 g_printf(_("ERROR [Can't execute %s: %s]\n"), cmd, strerror(errno));
 860                 exit(127);
 861             }
 862         default: /* parent */
 863             {
 864                 int   status;
 865                 FILE *app_stderr;
 866                 char *line;
 867
 868                 aclose(app_err[1]);
 869                 app_stderr = fdopen(app_err[0], "r");
 870                 while((line = agets(app_stderr)) != NULL) {
 871                     if (strlen(line) > 0) {
 872                         fprintf(stdout, "ERROR Application '%s': %s\n",
 873                                 dle->program, line);
 874                         dbprintf("ERROR %s\n", line);
 875                     }
 876                     amfree(line);
 877                 }
 878                 fclose(app_stderr);
 879                 if (waitpid(application_api_pid, &status, 0) < 0) {
 880                     err = vstrallocf(_("waitpid failed: %s"),
 881                                          strerror(errno));
 882                     goto common_exit;
 883                 } else if (!WIFEXITED(status)) {
 884                     err = vstrallocf(_("Application '%s': exited with signal %d"),
 885                                      dle->program, WTERMSIG(status));
 886                     goto common_exit;
 887                 } else if (WEXITSTATUS(status) != 0) {
 888                     err = vstrallocf(_("Application '%s': exited with status %d"),
 889                                      dle->program, WEXITSTATUS(status));
 890                     goto common_exit;
 891                 }
 892             }
 893         }
 894         amfree(bsu);
 895         fflush(stdout);fflush(stderr);
 896         amfree(device);
 897         amfree(qamdevice);
 898         amfree(qdisk);
 899         return;
 900     }
 901
 902     if (device) {
 903         qdevice = quote_string(device);
 904         dbprintf(_("device %s\n"), qdevice);
 905
 906         /* skip accessability test if this is an AFS entry */
 907         if(strncmp_const(device, "afs:") != 0) {
 908 #ifdef CHECK_FOR_ACCESS_WITH_OPEN
 909             access_result = open(device, O_RDONLY);
 910             access_type = "open";
 911 #else
 912             access_result = access(device, amode);
 913             access_type = "access";
 914 #endif
 915             if(access_result == -1) {
 916                 err = vstrallocf(_("Could not access %s (%s): %s"),
 917                                  qdevice, qdisk, strerror(errno));
 918             }
 919 #ifdef CHECK_FOR_ACCESS_WITH_OPEN
 920             aclose(access_result);
 921 #endif
 922         }
 923     }
 924
 925 common_exit:
 926
 927     if (!qdevice)
 928         qdevice = quote_string(device);
 929
 930     amfree(share);
 931     amfree(subdir);
 932     if(user_and_password) {
 933         memset(user_and_password, '\0', (size_t)lpass);
 934         amfree(user_and_password);
 935     }
 936     amfree(domain);
 937
 938     if(err) {
 939         g_printf(_("ERROR %s\n"), err);
 940         dbprintf(_("%s\n"), err);
 941         amfree(err);
 942     } else {
 943         if (dle->disk) {
 944             g_printf("OK %s\n", qdisk);
 945             dbprintf(_("disk %s OK\n"), qdisk);
 946         }
 947         if (dle->device) {
 948             g_printf("OK %s\n", qamdevice);
 949             dbprintf(_("amdevice %s OK\n"), qamdevice);
 950         }
 951         if (device) {
 952             g_printf("OK %s\n", qdevice);
 953             dbprintf(_("device %s OK\n"), qdevice);
 954         }
 955     }
 956     if(extra_info) {
 957         dbprintf(_("extra info: %s\n"), extra_info);
 958         amfree(extra_info);
 959     }
 960     amfree(qdisk);
 961     amfree(qdevice);
 962     amfree(qamdevice);
 963     amfree(device);
 964
 965     /* XXX perhaps do something with level: read dumpdates and sanity check */
 966 }
 967
 968 static void
 969 check_overall(void)
 970 {
 971     char *cmd;
 972     struct stat buf;
 973     int testfd;
 974     char *gnutar_list_dir;
 975     int   need_amandates = 0;
 976
 977     if( need_runtar )
 978     {
 979         cmd = vstralloc(amlibexecdir, "/", "runtar", NULL);
 980         check_file(cmd,X_OK);
 981         check_suid(cmd);
 982         amfree(cmd);
 983     }
 984
 985     if( need_rundump )
 986     {
 987         cmd = vstralloc(amlibexecdir, "/", "rundump", NULL);
 988         check_file(cmd,X_OK);
 989         check_suid(cmd);
 990         amfree(cmd);
 991     }
 992
 993     if( need_dump ) {
 994 #ifdef DUMP
 995         check_file(DUMP, X_OK);
 996 #else
 997         g_printf(_("ERROR [DUMP program not available]\n"));
 998 #endif
 999     }
1000
1001     if( need_restore ) {
1002 #ifdef RESTORE
1003         check_file(RESTORE, X_OK);
1004 #else
1005         g_printf(_("ERROR [RESTORE program not available]\n"));
1006 #endif
1007     }
1008
1009     if ( need_vdump ) {
1010 #ifdef VDUMP
1011         check_file(VDUMP, X_OK);
1012 #else
1013         g_printf(_("ERROR [VDUMP program not available]\n"));
1014 #endif
1015     }
1016
1017     if ( need_vrestore ) {
1018 #ifdef VRESTORE
1019         check_file(VRESTORE, X_OK);
1020 #else
1021         g_printf(_("ERROR [VRESTORE program not available]\n"));
1022 #endif
1023     }
1024
1025     if( need_xfsdump ) {
1026 #ifdef XFSDUMP
1027         check_file(XFSDUMP, F_OK);
1028 #else
1029         g_printf(_("ERROR [XFSDUMP program not available]\n"));
1030 #endif
1031     }
1032
1033     if( need_xfsrestore ) {
1034 #ifdef XFSRESTORE
1035         check_file(XFSRESTORE, X_OK);
1036 #else
1037         g_printf(_("ERROR [XFSRESTORE program not available]\n"));
1038 #endif
1039     }
1040
1041     if( need_vxdump ) {
1042 #ifdef VXDUMP
1043         check_file(VXDUMP, X_OK);
1044 #else
1045         g_printf(_("ERROR [VXDUMP program not available]\n"));
1046 #endif
1047     }
1048
1049     if( need_vxrestore ) {
1050 #ifdef VXRESTORE
1051         check_file(VXRESTORE, X_OK);
1052 #else
1053         g_printf(_("ERROR [VXRESTORE program not available]\n"));
1054 #endif
1055     }
1056
1057     if( need_gnutar ) {
1058 #ifdef GNUTAR
1059         check_file(GNUTAR, X_OK);
1060 #else
1061         g_printf(_("ERROR [GNUTAR program not available]\n"));
1062 #endif
1063         gnutar_list_dir = getconf_str(CNF_GNUTAR_LIST_DIR);
1064         if (strlen(gnutar_list_dir) == 0)
1065             gnutar_list_dir = NULL;
1066         if (gnutar_list_dir) {
1067             /* make sure our listed-incremental dir is ready */
1068             check_dir(gnutar_list_dir, R_OK|W_OK);
1069         } else {
1070             /* no listed-incremental dir, so check that amandates is ready */
1071             need_amandates = 1;
1072         }
1073     }
1074
1075     if( need_calcsize ) {
1076         char *cmd;
1077
1078         cmd = vstralloc(amlibexecdir, "/", "calcsize", NULL);
1079
1080         check_file(cmd, X_OK);
1081
1082         amfree(cmd);
1083
1084         /* calcsize uses amandates */
1085         need_amandates = 1;
1086     }
1087
1088     if (need_amandates) {
1089         char *amandates_file;
1090         amandates_file = getconf_str(CNF_AMANDATES);
1091         check_file(amandates_file, R_OK|W_OK);
1092     }
1093
1094     if( need_samba ) {
1095 #ifdef SAMBA_CLIENT
1096         check_file(SAMBA_CLIENT, X_OK);
1097 #else
1098         g_printf(_("ERROR [SMBCLIENT program not available]\n"));
1099 #endif
1100         testfd = open("/etc/amandapass", R_OK);
1101         if (testfd >= 0) {
1102             if(fstat(testfd, &buf) == 0) {
1103                 if ((buf.st_mode & 0x7) != 0) {
1104                     g_printf(_("ERROR [/etc/amandapass is world readable!]\n"));
1105                 } else {
1106                     g_printf(_("OK [/etc/amandapass is readable, but not by all]\n"));
1107                 }
1108             } else {
1109                 g_printf(_("OK [unable to stat /etc/amandapass: %s]\n"),
1110                        strerror(errno));
1111             }
1112             aclose(testfd);
1113         } else {
1114             g_printf(_("ERROR [unable to open /etc/amandapass: %s]\n"),
1115                    strerror(errno));
1116         }
1117     }
1118
1119     if (need_compress_path )
1120         check_file(COMPRESS_PATH, X_OK);
1121
1122     if (need_dump || need_xfsdump ) {
1123         if (check_file_exist("/var/lib/dumpdates")) {
1124             check_file("/var/lib/dumpdates",
1125 #ifdef USE_RUNDUMP
1126                        F_OK
1127 #else
1128                        R_OK|W_OK
1129 #endif
1130                       );
1131         } else {
1132 #ifndef USE_RUNDUMP
1133             if (access("/etc", R_OK|W_OK) == -1) {
1134                 g_printf(_("ERROR [dump will not be able to create the /var/lib/dumpdates file: %s]\n"), strerror(errno));
1135             }
1136 #endif
1137         }
1138     }
1139
1140     if (need_vdump) {
1141         if (check_file_exist("/var/lib/vdumpdates")) {
1142             check_file("/var/lib/vdumpdates", F_OK);
1143         }
1144     }
1145
1146     if (need_global_check) {
1147     check_access("/dev/null", R_OK|W_OK);
1148     check_space(AMANDA_TMPDIR, (off_t)64);      /* for amandad i/o */
1149
1150 #ifdef AMANDA_DBGDIR
1151     check_space(AMANDA_DBGDIR, (off_t)64);      /* for amandad i/o */
1152 #endif
1153
1154     check_space("/var/lib", (off_t)64);         /* for /var/lib/dumpdates writing */
1155     check_space("/etc", (off_t)64);             /* for /etc/dumpdates writing */
1156     }
1157 }
1158
1159 static void
1160 check_space(
1161     char *      dir,
1162     off_t       kbytes)
1163 {
1164     struct fs_usage fsusage;
1165     char *quoted = quote_string(dir);
1166     intmax_t kb_avail;
1167
1168     if(get_fs_usage(dir, NULL, &fsusage) == -1) {
1169         g_printf(_("ERROR [cannot get filesystem usage for %s: %s]\n"), quoted, strerror(errno));
1170         amfree(quoted);
1171         return;
1172     }
1173
1174     /* do the division first to avoid potential integer overflow */
1175     kb_avail = fsusage.fsu_bavail / 1024 * fsusage.fsu_blocksize;
1176
1177     if (fsusage.fsu_bavail_top_bit_set || fsusage.fsu_bavail == 0) {
1178         g_printf(_("ERROR [dir %s needs %lldKB, has nothing available.]\n"), quoted,
1179                 (long long)kbytes);
1180     } else if (kb_avail < kbytes) {
1181         g_printf(_("ERROR [dir %s needs %lldKB, only has %lldKB available.]\n"), quoted,
1182                 (long long)kbytes,
1183                 (long long)kb_avail);
1184     } else {
1185         g_printf(_("OK %s has more than %lldKB available.\n"),
1186                 quoted, (long long)kbytes);
1187     }
1188     amfree(quoted);
1189 }
1190
1191 static int
1192 check_file_exist(
1193     char *filename)
1194 {
1195     struct stat stat_buf;
1196
1197     if (stat(filename, &stat_buf) != 0) {
1198         if(errno == ENOENT) {
1199             return 0;
1200         }
1201     }
1202     return 1;
1203 }
1204