source/nsswitch/wbinfo.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.0
   4
   5    Winbind status program.
   6
   7    Copyright (C) Tim Potter 2000
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25 #include "winbindd.h"
  26 #include "debug.h"
  27
  28 /* Prototypes from common.h */
  29
  30 NSS_STATUS winbindd_request(int req_type,
  31                             struct winbindd_request *request,
  32                             struct winbindd_response *response);
  33
  34 /* List groups a user is a member of */
  35
  36 static BOOL wbinfo_get_usergroups(char *user)
  37 {
  38         struct winbindd_request request;
  39         struct winbindd_response response;
  40         NSS_STATUS result;
  41         int i;
  42
  43         ZERO_STRUCT(response);
  44
  45         /* Send request */
  46
  47         fstrcpy(request.data.username, user);
  48
  49         result = winbindd_request(WINBINDD_GETGROUPS, &request, &response);
  50
  51         if (result != NSS_STATUS_SUCCESS) {
  52                 return False;
  53         }
  54
  55         for (i = 0; i < response.data.num_entries; i++) {
  56                 printf("%d\n", (int)((gid_t *)response.extra_data)[i]);
  57         }
  58
  59         return True;
  60 }
  61
  62 /* List trusted domains */
  63
  64 static BOOL wbinfo_list_domains(void)
  65 {
  66         struct winbindd_response response;
  67         fstring name;
  68
  69         ZERO_STRUCT(response);
  70
  71         /* Send request */
  72
  73         if (winbindd_request(WINBINDD_LIST_TRUSTDOM, NULL, &response) !=
  74             NSS_STATUS_SUCCESS) {
  75                 return False;
  76         }
  77
  78         /* Display response */
  79
  80         if (response.extra_data) {
  81                 while(next_token((char **)&response.extra_data, name, ",",
  82                                  sizeof(fstring))) {
  83                         printf("%s\n", name);
  84                 }
  85         }
  86
  87         return True;
  88 }
  89
  90 /* Check trust account password */
  91
  92 static BOOL wbinfo_check_secret(void)
  93 {
  94         struct winbindd_response response;
  95         BOOL result;
  96
  97         ZERO_STRUCT(response);
  98
  99         result = winbindd_request(WINBINDD_CHECK_MACHACC, NULL, &response) ==
 100                 NSS_STATUS_SUCCESS;
 101
 102         if (result) {
 103
 104                 if (response.data.num_entries == 0) {
 105                         printf("Secret is good\n");
 106                 } else {
 107                         printf("Secret is bad\n0x%08x\n",
 108                                response.data.num_entries);
 109                 }
 110
 111                 return True;
 112         }
 113
 114         return False;
 115 }
 116
 117 /* Convert uid to sid */
 118
 119 static BOOL wbinfo_uid_to_sid(uid_t uid)
 120 {
 121         struct winbindd_request request;
 122         struct winbindd_response response;
 123
 124         ZERO_STRUCT(request);
 125         ZERO_STRUCT(response);
 126
 127         /* Send request */
 128
 129         request.data.uid = uid;
 130         if (winbindd_request(WINBINDD_UID_TO_SID, &request, &response) !=
 131             NSS_STATUS_SUCCESS) {
 132                 return False;
 133         }
 134
 135         /* Display response */
 136
 137         printf("%s\n", response.data.sid.sid);
 138
 139         return True;
 140 }
 141
 142 /* Convert gid to sid */
 143
 144 static BOOL wbinfo_gid_to_sid(gid_t gid)
 145 {
 146         struct winbindd_request request;
 147         struct winbindd_response response;
 148
 149         ZERO_STRUCT(request);
 150         ZERO_STRUCT(response);
 151
 152         /* Send request */
 153
 154         request.data.gid = gid;
 155         if (winbindd_request(WINBINDD_GID_TO_SID, &request, &response) !=
 156             NSS_STATUS_SUCCESS) {
 157                 return False;
 158         }
 159
 160         /* Display response */
 161
 162         printf("%s\n", response.data.sid.sid);
 163
 164         return True;
 165 }
 166
 167 /* Convert sid to uid */
 168
 169 static BOOL wbinfo_sid_to_uid(char *sid)
 170 {
 171         struct winbindd_request request;
 172         struct winbindd_response response;
 173
 174         ZERO_STRUCT(request);
 175         ZERO_STRUCT(response);
 176
 177         /* Send request */
 178
 179         fstrcpy(request.data.sid, sid);
 180         if (winbindd_request(WINBINDD_SID_TO_UID, &request, &response) !=
 181             NSS_STATUS_SUCCESS) {
 182                 return False;
 183         }
 184
 185         /* Display response */
 186
 187         printf("%d\n", (int)response.data.uid);
 188
 189         return True;
 190 }
 191
 192 static BOOL wbinfo_sid_to_gid(char *sid)
 193 {
 194         struct winbindd_request request;
 195         struct winbindd_response response;
 196
 197         ZERO_STRUCT(request);
 198         ZERO_STRUCT(response);
 199
 200         /* Send request */
 201
 202         fstrcpy(request.data.sid, sid);
 203         if (winbindd_request(WINBINDD_SID_TO_GID, &request, &response) !=
 204             NSS_STATUS_SUCCESS) {
 205                 return False;
 206         }
 207
 208         /* Display response */
 209
 210         printf("%d\n", (int)response.data.gid);
 211
 212         return True;
 213 }
 214
 215 /* Convert sid to string */
 216
 217 static BOOL wbinfo_lookupsid(char *sid)
 218 {
 219         struct winbindd_request request;
 220         struct winbindd_response response;
 221
 222         ZERO_STRUCT(request);
 223         ZERO_STRUCT(response);
 224
 225         /* Send off request */
 226
 227         fstrcpy(request.data.sid, sid);
 228         if (winbindd_request(WINBINDD_LOOKUPSID, &request, &response) !=
 229             NSS_STATUS_SUCCESS) {
 230                 return False;
 231         }
 232
 233         /* Display response */
 234
 235         printf("%s %d\n", response.data.name.name, response.data.name.type);
 236
 237         return True;
 238 }
 239
 240 /* Convert string to sid */
 241
 242 static BOOL wbinfo_lookupname(char *name)
 243 {
 244         struct winbindd_request request;
 245         struct winbindd_response response;
 246
 247         /*
 248          * Don't do the lookup if the name has no separator.
 249          */
 250
 251         if (!strchr(name, *lp_winbind_separator()))
 252                 return False;
 253
 254         /* Send off request */
 255
 256         ZERO_STRUCT(request);
 257         ZERO_STRUCT(response);
 258
 259         fstrcpy(request.data.name, name);
 260         if (winbindd_request(WINBINDD_LOOKUPNAME, &request, &response) !=
 261             NSS_STATUS_SUCCESS) {
 262                 return False;
 263         }
 264
 265         /* Display response */
 266
 267         printf("%s %d\n", response.data.sid.sid, response.data.sid.type);
 268
 269         return True;
 270 }
 271
 272 /* Authenticate a user with a plaintext password */
 273
 274 static BOOL wbinfo_auth(char *username)
 275 {
 276         struct winbindd_request request;
 277         struct winbindd_response response;
 278         NSS_STATUS result;
 279         char *p;
 280
 281         /*
 282          * Don't do the lookup if the name has no separator.
 283          */
 284
 285         if (!strchr(username, *lp_winbind_separator()))
 286                 return False;
 287
 288         /* Send off request */
 289
 290         ZERO_STRUCT(request);
 291         ZERO_STRUCT(response);
 292
 293         p = strchr(username, '%');
 294
 295         if (p) {
 296                 *p = 0;
 297                 fstrcpy(request.data.auth.user, username);
 298                 fstrcpy(request.data.auth.pass, p + 1);
 299                 *p = '%';
 300         } else
 301                 fstrcpy(request.data.auth.user, username);
 302
 303         result = winbindd_request(WINBINDD_PAM_AUTH, &request, &response);
 304
 305         /* Display response */
 306
 307         printf("plaintext password authentication %s\n",
 308                (result == NSS_STATUS_SUCCESS) ? "succeeded" : "failed");
 309
 310         return result == NSS_STATUS_SUCCESS;
 311 }
 312
 313 /* Authenticate a user with a challenge/response */
 314
 315 static BOOL wbinfo_auth_crap(char *username)
 316 {
 317         struct winbindd_request request;
 318         struct winbindd_response response;
 319         NSS_STATUS result;
 320         fstring pass;
 321         char *p;
 322
 323         /*
 324          * Don't do the lookup if the name has no separator.
 325          */
 326
 327         if (!strchr(username, *lp_winbind_separator()))
 328                 return False;
 329
 330         /* Send off request */
 331
 332         ZERO_STRUCT(request);
 333         ZERO_STRUCT(response);
 334
 335         p = strchr(username, '%');
 336
 337         if (p) {
 338                 *p = 0;
 339                 fstrcpy(request.data.auth_crap.user, username);
 340                 fstrcpy(pass, p + 1);
 341                 *p = '%';
 342         } else
 343                 fstrcpy(request.data.auth_crap.user, username);
 344
 345         generate_random_buffer(request.data.auth_crap.chal, 8, False);
 346
 347         SMBencrypt((uchar *)pass, request.data.auth_crap.chal,
 348                    (uchar *)request.data.auth_crap.lm_resp);
 349         SMBNTencrypt((uchar *)pass, request.data.auth_crap.chal,
 350                      (uchar *)request.data.auth_crap.nt_resp);
 351
 352         request.data.auth_crap.lm_resp_len = 24;
 353         request.data.auth_crap.nt_resp_len = 24;
 354
 355         result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
 356
 357         /* Display response */
 358
 359         printf("challenge/response password authentication %s\n",
 360                (result == NSS_STATUS_SUCCESS) ? "succeeded" : "failed");
 361
 362         return result == NSS_STATUS_SUCCESS;
 363 }
 364
 365 /* Print domain users */
 366
 367 static BOOL print_domain_users(void)
 368 {
 369         struct winbindd_response response;
 370         fstring name;
 371
 372         /* Send request to winbind daemon */
 373
 374         ZERO_STRUCT(response);
 375
 376         if (winbindd_request(WINBINDD_LIST_USERS, NULL, &response) !=
 377             NSS_STATUS_SUCCESS) {
 378                 return False;
 379         }
 380
 381         /* Look through extra data */
 382
 383         if (!response.extra_data) {
 384                 return False;
 385         }
 386
 387         while(next_token((char **)&response.extra_data, name, ",",
 388                          sizeof(fstring))) {
 389                 printf("%s\n", name);
 390         }
 391
 392         return True;
 393 }
 394
 395 /* Print domain groups */
 396
 397 static BOOL print_domain_groups(void)
 398 {
 399         struct winbindd_response response;
 400         fstring name;
 401
 402         ZERO_STRUCT(response);
 403
 404         if (winbindd_request(WINBINDD_LIST_GROUPS, NULL, &response) !=
 405             NSS_STATUS_SUCCESS) {
 406                 return False;
 407         }
 408
 409         /* Look through extra data */
 410
 411         if (!response.extra_data) {
 412                 return False;
 413         }
 414
 415         while(next_token((char **)&response.extra_data, name, ",",
 416                          sizeof(fstring))) {
 417                 printf("%s\n", name);
 418         }
 419
 420         return True;
 421 }
 422
 423 /* Set the authorised user for winbindd access in secrets.tdb */
 424
 425 static BOOL wbinfo_set_auth_user(char *username)
 426 {
 427         char *password;
 428
 429         /* Separate into user and password */
 430
 431         password = strchr(username, '%');
 432
 433         if (password) {
 434                 *password = 0;
 435                 password++;
 436         } else
 437                 password = "";
 438
 439         /* Store in secrets.tdb */
 440
 441         if (!secrets_store(SECRETS_AUTH_USER, username, strlen(username) + 1) ||
 442             !secrets_store(SECRETS_AUTH_PASSWORD, password, strlen(password) + 1)) {
 443                 fprintf(stderr, "error storing authenticated user info\n");
 444                 return False;
 445         }
 446
 447         return True;
 448 }
 449
 450 /* Print program usage */
 451
 452 static void usage(void)
 453 {
 454         printf("Usage: wbinfo -ug | -n name | -sSY sid | -UG uid/gid | -tm "
 455                "| -a user%%password\n");
 456         printf("\t-u\t\t\tlists all domain users\n");
 457         printf("\t-g\t\t\tlists all domain groups\n");
 458         printf("\t-n name\t\t\tconverts name to sid\n");
 459         printf("\t-s sid\t\t\tconverts sid to name\n");
 460         printf("\t-U uid\t\t\tconverts uid to sid\n");
 461         printf("\t-G gid\t\t\tconverts gid to sid\n");
 462         printf("\t-S sid\t\t\tconverts sid to uid\n");
 463         printf("\t-Y sid\t\t\tconverts sid to gid\n");
 464         printf("\t-t\t\t\tcheck shared secret\n");
 465         printf("\t-m\t\t\tlist trusted domains\n");
 466         printf("\t-r user\t\t\tget user groups\n");
 467         printf("\t-a user%%password\tauthenticate user\n");
 468 }
 469
 470 /* Main program */
 471
 472 enum {
 473         OPT_SET_AUTH_USER = 1000
 474 };
 475
 476 int main(int argc, char **argv)
 477 {
 478         extern pstring global_myname;
 479         int opt;
 480
 481         poptContext pc;
 482         static char *string_arg;
 483         static int int_arg;
 484         BOOL got_command = False;
 485
 486         struct poptOption long_options[] = {
 487
 488                 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
 489                 { "help", 'h', POPT_ARG_NONE, 0, 'h' },
 490                 { "domain-users", 'u', POPT_ARG_NONE, 0, 'u' },
 491                 { "domain-groups", 'g', POPT_ARG_NONE, 0, 'g' },
 492                 { "name-to-sid", 'n', POPT_ARG_STRING, &string_arg, 'n' },
 493                 { "sid-to-name", 's', POPT_ARG_STRING, &string_arg, 's' },
 494                 { "uid-to-sid", 'U', POPT_ARG_INT, &int_arg, 'U' },
 495                 { "gid-to-sid", 'G', POPT_ARG_INT, &int_arg, 'G' },
 496                 { "sid-to-uid", 'S', POPT_ARG_STRING, &string_arg, 'S' },
 497                 { "sid-to-gid", 'Y', POPT_ARG_STRING, &string_arg, 'Y' },
 498                 { "check-secret", 't', POPT_ARG_NONE, 0, 't' },
 499                 { "trusted-domains", 'm', POPT_ARG_NONE, 0, 'm' },
 500                 { "user-groups", 'r', POPT_ARG_STRING, &string_arg, 'r' },
 501                 { "authenticate", 'a', POPT_ARG_STRING, &string_arg, 'a' },
 502                 { "set-auth-user", 0, POPT_ARG_STRING, &string_arg, OPT_SET_AUTH_USER },
 503                 { 0, 0, 0, 0 }
 504         };
 505
 506         /* Samba client initialisation */
 507
 508         if (!*global_myname) {
 509                 char *p;
 510
 511                 fstrcpy(global_myname, myhostname());
 512                 p = strchr(global_myname, '.');
 513                 if (p) {
 514                         *p = 0;
 515                 }
 516         }
 517
 518         if (!lp_load(dyn_CONFIGFILE, True, False, False)) {
 519                 fprintf(stderr, "wbinfo: error opening config file %s. Error was %s\n",
 520                         dyn_CONFIGFILE, strerror(errno));
 521                 exit(1);
 522         }
 523
 524         load_interfaces();
 525
 526         /* Parse command line options */
 527
 528         if (argc == 1) {
 529                 usage();
 530                 return 1;
 531         }
 532
 533         /* Parse options */
 534
 535         pc = poptGetContext("wbinfo", argc, (const char **)argv, long_options, 0);
 536
 537         while((opt = poptGetNextOpt(pc)) != -1) {
 538                 if (got_command) {
 539                         fprintf(stderr, "No more than one command may be specified "
 540                                 "at once.\n");
 541                         exit(1);
 542                 }
 543                 got_command = True;
 544         }
 545
 546         pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
 547                             POPT_CONTEXT_KEEP_FIRST);
 548
 549         while((opt = poptGetNextOpt(pc)) != -1) {
 550                 switch (opt) {
 551                 case 'h':
 552                         usage();
 553                         exit(0);
 554                 case 'u':
 555                         if (!print_domain_users()) {
 556                                 printf("Error looking up domain users\n");
 557                                 return 1;
 558                         }
 559                         break;
 560                 case 'g':
 561                         if (!print_domain_groups()) {
 562                                 printf("Error looking up domain groups\n");
 563                                 return 1;
 564                         }
 565                         break;
 566                 case 's':
 567                         if (!wbinfo_lookupsid(string_arg)) {
 568                                 printf("Could not lookup sid %s\n", string_arg);
 569                                 return 1;
 570                         }
 571                         break;
 572                 case 'n':
 573                         if (!wbinfo_lookupname(string_arg)) {
 574                                 printf("Could not lookup name %s\n", string_arg);
 575                                 return 1;
 576                         }
 577                         break;
 578                 case 'U':
 579                         if (!wbinfo_uid_to_sid(int_arg)) {
 580                                 printf("Could not convert uid %d to sid\n", int_arg);
 581                                 return 1;
 582                         }
 583                         break;
 584                 case 'G':
 585                         if (!wbinfo_gid_to_sid(int_arg)) {
 586                                 printf("Could not convert gid %d to sid\n",
 587                                        int_arg);
 588                                 return 1;
 589                         }
 590                         break;
 591                 case 'S':
 592                         if (!wbinfo_sid_to_uid(string_arg)) {
 593                                 printf("Could not convert sid %s to uid\n",
 594                                        string_arg);
 595                                 return 1;
 596                         }
 597                         break;
 598                 case 'Y':
 599                         if (!wbinfo_sid_to_gid(string_arg)) {
 600                                 printf("Could not convert sid %s to gid\n",
 601                                        string_arg);
 602                                 return 1;
 603                         }
 604                         break;
 605                 case 't':
 606                         if (!wbinfo_check_secret()) {
 607                                 printf("Could not check secret\n");
 608                                 return 1;
 609                         }
 610                         break;
 611                 case 'm':
 612                         if (!wbinfo_list_domains()) {
 613                                 printf("Could not list trusted domains\n");
 614                                 return 1;
 615                         }
 616                         break;
 617                 case 'r':
 618                         if (!wbinfo_get_usergroups(string_arg)) {
 619                                 printf("Could not get groups for user %s\n",
 620                                        string_arg);
 621                                 return 1;
 622                         }
 623                         break;
 624                 case 'a': {
 625                         BOOL got_error = False;
 626
 627                         if (!wbinfo_auth(string_arg)) {
 628                                 printf("Could not authenticate user %s with "
 629                                        "plaintext password\n", string_arg);
 630                                 got_error = True;
 631                         }
 632
 633                         if (!wbinfo_auth_crap(string_arg)) {
 634                                 printf("Could not authenticate user %s with "
 635                                        "challenge/response\n", string_arg);
 636                                 got_error = True;
 637                         }
 638
 639                         if (got_error)
 640                                 return 1;
 641                         break;
 642                 }
 643                 case OPT_SET_AUTH_USER:
 644                         if (!(wbinfo_set_auth_user(string_arg))) {
 645                                 return 1;
 646                         }
 647                         break;
 648                 default:
 649                         fprintf(stderr, "Invalid option\n");
 650                         usage();
 651                         return 1;
 652                 }
 653         }
 654
 655         /* Clean exit */
 656
 657         return 0;
 658 }