source3/utils/net_conf.c

   1 /*
   2  *  Samba Unix/Linux SMB client library
   3  *  Distributed SMB/CIFS Server Management Utility
   4  *  Local configuration interface
   5  *  Copyright (C) Michael Adam 2007-2008
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /*
  22  * This is an interface to Samba's configuration as made available
  23  * by the libnet_conf interface (source/libnet/libnet_conf.c).
  24  *
  25  * This currently supports local interaction with the configuration
  26  * stored in the registry. But other backends and remote access via
  27  * rpc might get implemented in the future.
  28  */
  29
  30 #include "includes.h"
  31 #include "utils/net.h"
  32 #include "libnet/libnet.h"
  33
  34 /**********************************************************************
  35  *
  36  * usage functions
  37  *
  38  **********************************************************************/
  39
  40 static int net_conf_list_usage(int argc, const char **argv)
  41 {
  42         d_printf("USAGE: net conf list\n");
  43         return -1;
  44 }
  45
  46 static int net_conf_import_usage(int argc, const char**argv)
  47 {
  48         d_printf("USAGE: net conf import [--test|-T] <filename> "
  49                  "[<servicename>]\n"
  50                  "\t[--test|-T]    testmode - do not act, just print "
  51                         "what would be done\n"
  52                  "\t<servicename>  only import service <servicename>, "
  53                         "ignore the rest\n");
  54         return -1;
  55 }
  56
  57 static int net_conf_listshares_usage(int argc, const char **argv)
  58 {
  59         d_printf("USAGE: net conf listshares\n");
  60         return -1;
  61 }
  62
  63 static int net_conf_drop_usage(int argc, const char **argv)
  64 {
  65         d_printf("USAGE: net conf drop\n");
  66         return -1;
  67 }
  68
  69 static int net_conf_showshare_usage(int argc, const char **argv)
  70 {
  71         d_printf("USAGE: net conf showshare <sharename>\n");
  72         return -1;
  73 }
  74
  75 static int net_conf_addshare_usage(int argc, const char **argv)
  76 {
  77         d_printf("USAGE: net conf addshare <sharename> <path> "
  78                  "[writeable={y|N} [guest_ok={y|N} [<comment>]]\n"
  79                  "\t<sharename>      the new share name.\n"
  80                  "\t<path>           the path on the filesystem to export.\n"
  81                  "\twriteable={y|N}  set \"writeable to \"yes\" or "
  82                  "\"no\" (default) on this share.\n"
  83                  "\tguest_ok={y|N}   set \"guest ok\" to \"yes\" or "
  84                  "\"no\" (default)   on this share.\n"
  85                  "\t<comment>        optional comment for the new share.\n");
  86         return -1;
  87 }
  88
  89 static int net_conf_delshare_usage(int argc, const char **argv)
  90 {
  91         d_printf("USAGE: net conf delshare <sharename>\n");
  92         return -1;
  93 }
  94
  95 static int net_conf_setparm_usage(int argc, const char **argv)
  96 {
  97         d_printf("USAGE: net conf setparm <section> <param> <value>\n");
  98         return -1;
  99 }
 100
 101 static int net_conf_getparm_usage(int argc, const char **argv)
 102 {
 103         d_printf("USAGE: net conf getparm <section> <param>\n");
 104         return -1;
 105 }
 106
 107 static int net_conf_delparm_usage(int argc, const char **argv)
 108 {
 109         d_printf("USAGE: net conf delparm <section> <param>\n");
 110         return -1;
 111 }
 112
 113
 114 /**********************************************************************
 115  *
 116  * Helper functions
 117  *
 118  **********************************************************************/
 119
 120 /**
 121  * This formats an in-memory smbconf parameter to a string.
 122  * The result string is allocated with talloc.
 123  */
 124 static char *parm_valstr(TALLOC_CTX *ctx, struct parm_struct *parm,
 125                          struct share_params *share)
 126 {
 127         char *valstr = NULL;
 128         int i = 0;
 129         void *ptr = parm->ptr;
 130
 131         if (parm->p_class == P_LOCAL && share->service >= 0) {
 132                 ptr = lp_local_ptr(share->service, ptr);
 133         }
 134
 135         switch (parm->type) {
 136         case P_CHAR:
 137                 valstr = talloc_asprintf(ctx, "%c", *(char *)ptr);
 138                 break;
 139         case P_STRING:
 140         case P_USTRING:
 141                 valstr = talloc_asprintf(ctx, "%s", *(char **)ptr);
 142                 break;
 143         case P_BOOL:
 144                 valstr = talloc_asprintf(ctx, "%s", BOOLSTR(*(bool *)ptr));
 145                 break;
 146         case P_BOOLREV:
 147                 valstr = talloc_asprintf(ctx, "%s", BOOLSTR(!*(bool *)ptr));
 148                 break;
 149         case P_ENUM:
 150                 for (i = 0; parm->enum_list[i].name; i++) {
 151                         if (*(int *)ptr == parm->enum_list[i].value)
 152                         {
 153                                 valstr = talloc_asprintf(ctx, "%s",
 154                                         parm->enum_list[i].name);
 155                                 break;
 156                         }
 157                 }
 158                 break;
 159         case P_OCTAL: {
 160                 char *o = octal_string(*(int *)ptr);
 161                 valstr = talloc_move(ctx, &o);
 162                 break;
 163         }
 164         case P_LIST:
 165                 valstr = talloc_strdup(ctx, "");
 166                 if ((char ***)ptr && *(char ***)ptr) {
 167                         char **list = *(char ***)ptr;
 168                         for (; *list; list++) {
 169                                 /* surround strings with whitespace
 170                                  * in double quotes */
 171                                 if (strchr_m(*list, ' '))
 172                                 {
 173                                         valstr = talloc_asprintf_append(
 174                                                 valstr, "\"%s\"%s",
 175                                                 *list,
 176                                                  ((*(list+1))?", ":""));
 177                                 } else {
 178                                         valstr = talloc_asprintf_append(
 179                                                 valstr, "%s%s", *list,
 180                                                  ((*(list+1))?", ":""));
 181                                 }
 182                         }
 183                 }
 184                 break;
 185         case P_INTEGER:
 186                 valstr = talloc_asprintf(ctx, "%d", *(int *)ptr);
 187                 break;
 188         case P_SEP:
 189                 break;
 190         default:
 191                 valstr = talloc_asprintf(ctx, "<type unimplemented>\n");
 192                 break;
 193         }
 194
 195         return valstr;
 196 }
 197
 198 /**
 199  * This functions imports a configuration that has previously
 200  * been loaded with lp_load() to registry.
 201  */
 202 static int import_process_service(TALLOC_CTX *ctx,
 203                                   struct libnet_conf_ctx *conf_ctx,
 204                                   struct share_params *share)
 205 {
 206         int ret = -1;
 207         struct parm_struct *parm;
 208         int pnum = 0;
 209         const char *servicename;
 210         WERROR werr;
 211         char *valstr = NULL;
 212         TALLOC_CTX *tmp_ctx = NULL;
 213
 214         tmp_ctx = talloc_new(ctx);
 215         if (tmp_ctx == NULL) {
 216                 werr = WERR_NOMEM;
 217                 goto done;
 218         }
 219
 220         servicename = (share->service == GLOBAL_SECTION_SNUM)?
 221                 GLOBAL_NAME : lp_servicename(share->service);
 222
 223         if (opt_testmode) {
 224                 d_printf("[%s]\n", servicename);
 225         } else {
 226                 if (libnet_conf_share_exists(conf_ctx, servicename)) {
 227                         werr = libnet_conf_delete_share(conf_ctx, servicename);
 228                         if (!W_ERROR_IS_OK(werr)) {
 229                                 goto done;
 230                         }
 231                 }
 232                 werr = libnet_conf_create_share(conf_ctx, servicename);
 233                 if (!W_ERROR_IS_OK(werr)) {
 234                         goto done;
 235                 }
 236         }
 237
 238         while ((parm = lp_next_parameter(share->service, &pnum, 0)))
 239         {
 240                 if ((share->service < 0) && (parm->p_class == P_LOCAL)
 241                     && !(parm->flags & FLAG_GLOBAL))
 242                 {
 243                         continue;
 244                 }
 245
 246                 valstr = parm_valstr(tmp_ctx, parm, share);
 247
 248                 if (parm->type != P_SEP) {
 249                         if (opt_testmode) {
 250                                 d_printf("\t%s = %s\n", parm->label, valstr);
 251                         } else {
 252                                 werr = libnet_conf_set_parameter(conf_ctx,
 253                                                                  servicename,
 254                                                                  parm->label,
 255                                                                  valstr);
 256                                 if (!W_ERROR_IS_OK(werr)) {
 257                                         d_fprintf(stderr,
 258                                                   "Error setting parameter '%s'"
 259                                                   ": %s\n", parm->label,
 260                                                    dos_errstr(werr));
 261                                         goto done;
 262                                 }
 263                         }
 264                 }
 265         }
 266
 267         if (opt_testmode) {
 268                 d_printf("\n");
 269         }
 270
 271         ret = 0;
 272
 273 done:
 274         TALLOC_FREE(tmp_ctx);
 275         return ret;
 276 }
 277
 278 /**
 279  * Return true iff there are nondefault globals in the
 280  * currently loaded configuration.
 281  */
 282 static bool globals_exist(void)
 283 {
 284         int i = 0;
 285         struct parm_struct *parm;
 286
 287         while ((parm = lp_next_parameter(GLOBAL_SECTION_SNUM, &i, 0)) != NULL) {
 288                 if (parm->type != P_SEP) {
 289                         return true;
 290                 }
 291         }
 292         return false;
 293 }
 294
 295
 296 /**********************************************************************
 297  *
 298  * the main conf functions
 299  *
 300  **********************************************************************/
 301
 302 static int net_conf_list(struct libnet_conf_ctx *conf_ctx,
 303                          int argc, const char **argv)
 304 {
 305         WERROR werr = WERR_OK;
 306         int ret = -1;
 307         TALLOC_CTX *ctx;
 308         uint32_t num_shares;
 309         char **share_names;
 310         uint32_t *num_params;
 311         char ***param_names;
 312         char ***param_values;
 313         uint32_t share_count, param_count;
 314
 315         ctx = talloc_init("list");
 316
 317         if (argc != 0) {
 318                 net_conf_list_usage(argc, argv);
 319                 goto done;
 320         }
 321
 322         werr = libnet_conf_get_config(ctx, conf_ctx, &num_shares, &share_names,
 323                                       &num_params, &param_names, &param_values);
 324         if (!W_ERROR_IS_OK(werr)) {
 325                 d_fprintf(stderr, "Error getting config: %s\n",
 326                           dos_errstr(werr));
 327                 goto done;
 328         }
 329
 330         for (share_count = 0; share_count < num_shares; share_count++) {
 331                 d_printf("[%s]\n", share_names[share_count]);
 332                 for (param_count = 0; param_count < num_params[share_count];
 333                      param_count++)
 334                 {
 335                         d_printf("\t%s = %s\n",
 336                                  param_names[share_count][param_count],
 337                                  param_values[share_count][param_count]);
 338                 }
 339                 d_printf("\n");
 340         }
 341
 342         ret = 0;
 343
 344 done:
 345         TALLOC_FREE(ctx);
 346         return ret;
 347 }
 348
 349 static int net_conf_import(struct libnet_conf_ctx *conf_ctx,
 350                            int argc, const char **argv)
 351 {
 352         int ret = -1;
 353         const char *filename = NULL;
 354         const char *servicename = NULL;
 355         bool service_found = false;
 356         TALLOC_CTX *ctx;
 357         struct share_iterator *shares;
 358         struct share_params *share;
 359         struct share_params global_share = { GLOBAL_SECTION_SNUM };
 360
 361         ctx = talloc_init("net_conf_import");
 362
 363         switch (argc) {
 364                 case 0:
 365                 default:
 366                         net_conf_import_usage(argc, argv);
 367                         goto done;
 368                 case 2:
 369                         servicename = argv[1];
 370                 case 1:
 371                         filename = argv[0];
 372                         break;
 373         }
 374
 375         DEBUG(3,("net_conf_import: reading configuration from file %s.\n",
 376                 filename));
 377
 378         if (!lp_load(filename,
 379                      false,     /* global_only */
 380                      true,      /* save_defaults */
 381                      false,     /* add_ipc */
 382                      true))     /* initialize_globals */
 383         {
 384                 d_fprintf(stderr, "Error parsing configuration file.\n");
 385                 goto done;
 386         }
 387
 388         if (opt_testmode) {
 389                 d_printf("\nTEST MODE - "
 390                          "would import the following configuration:\n\n");
 391         }
 392
 393         if (((servicename == NULL) && globals_exist()) ||
 394             strequal(servicename, GLOBAL_NAME))
 395         {
 396                 service_found = true;
 397                 if (import_process_service(ctx, conf_ctx, &global_share) != 0) {
 398                         goto done;
 399                 }
 400         }
 401
 402         if (service_found && (servicename != NULL)) {
 403                 ret = 0;
 404                 goto done;
 405         }
 406
 407         if (!(shares = share_list_all(ctx))) {
 408                 d_fprintf(stderr, "Could not list shares...\n");
 409                 goto done;
 410         }
 411         while ((share = next_share(shares)) != NULL) {
 412                 if ((servicename == NULL)
 413                     || strequal(servicename, lp_servicename(share->service)))
 414                 {
 415                         service_found = true;
 416                         if (import_process_service(ctx, conf_ctx, share)!= 0) {
 417                                 goto done;
 418                         }
 419                 }
 420         }
 421
 422         if ((servicename != NULL) && !service_found) {
 423                 d_printf("Share %s not found in file %s\n",
 424                          servicename, filename);
 425                 goto done;
 426
 427         }
 428
 429         ret = 0;
 430
 431 done:
 432         TALLOC_FREE(ctx);
 433         return ret;
 434 }
 435
 436 static int net_conf_listshares(struct libnet_conf_ctx *conf_ctx,
 437                                int argc, const char **argv)
 438 {
 439         WERROR werr = WERR_OK;
 440         int ret = -1;
 441         uint32_t count, num_shares = 0;
 442         char **share_names = NULL;
 443         TALLOC_CTX *ctx;
 444
 445         ctx = talloc_init("listshares");
 446
 447         if (argc != 0) {
 448                 net_conf_listshares_usage(argc, argv);
 449                 goto done;
 450         }
 451
 452         werr = libnet_conf_get_share_names(ctx, conf_ctx, &num_shares,
 453                                            &share_names);
 454         if (!W_ERROR_IS_OK(werr)) {
 455                 goto done;
 456         }
 457
 458         for (count = 0; count < num_shares; count++)
 459         {
 460                 d_printf("%s\n", share_names[count]);
 461         }
 462
 463         ret = 0;
 464
 465 done:
 466         TALLOC_FREE(ctx);
 467         return ret;
 468 }
 469
 470 static int net_conf_drop(struct libnet_conf_ctx *conf_ctx,
 471                          int argc, const char **argv)
 472 {
 473         int ret = -1;
 474         WERROR werr;
 475
 476         if (argc != 0) {
 477                 net_conf_drop_usage(argc, argv);
 478                 goto done;
 479         }
 480
 481         werr = libnet_conf_drop(conf_ctx);
 482         if (!W_ERROR_IS_OK(werr)) {
 483                 d_fprintf(stderr, "Error deleting configuration: %s\n",
 484                           dos_errstr(werr));
 485                 goto done;
 486         }
 487
 488         ret = 0;
 489
 490 done:
 491         return ret;
 492 }
 493
 494 static int net_conf_showshare(struct libnet_conf_ctx *conf_ctx,
 495                               int argc, const char **argv)
 496 {
 497         int ret = -1;
 498         WERROR werr = WERR_OK;
 499         const char *sharename = NULL;
 500         TALLOC_CTX *ctx;
 501         uint32_t num_params;
 502         uint32_t count;
 503         char **param_names;
 504         char **param_values;
 505
 506         ctx = talloc_init("showshare");
 507
 508         if (argc != 1) {
 509                 net_conf_showshare_usage(argc, argv);
 510                 goto done;
 511         }
 512
 513         sharename = argv[0];
 514
 515         werr = libnet_conf_get_share(ctx, conf_ctx, sharename, &num_params,
 516                                      &param_names, &param_values);
 517         if (!W_ERROR_IS_OK(werr)) {
 518                 d_printf("error getting share parameters: %s\n",
 519                          dos_errstr(werr));
 520                 goto done;
 521         }
 522
 523         d_printf("[%s]\n", sharename);
 524
 525         for (count = 0; count < num_params; count++) {
 526                 d_printf("\t%s = %s\n", param_names[count],
 527                          param_values[count]);
 528         }
 529
 530         ret = 0;
 531
 532 done:
 533         TALLOC_FREE(ctx);
 534         return ret;
 535 }
 536
 537 /**
 538  * Add a share, with a couple of standard parameters, partly optional.
 539  *
 540  * This is a high level utility function of the net conf utility,
 541  * not a direct frontend to the libnet_conf API.
 542  */
 543 static int net_conf_addshare(struct libnet_conf_ctx *conf_ctx,
 544                              int argc, const char **argv)
 545 {
 546         int ret = -1;
 547         WERROR werr = WERR_OK;
 548         char *sharename = NULL;
 549         const char *path = NULL;
 550         const char *comment = NULL;
 551         const char *guest_ok = "no";
 552         const char *writeable = "no";
 553         SMB_STRUCT_STAT sbuf;
 554
 555         switch (argc) {
 556                 case 0:
 557                 case 1:
 558                 default:
 559                         net_conf_addshare_usage(argc, argv);
 560                         goto done;
 561                 case 5:
 562                         comment = argv[4];
 563                 case 4:
 564                         if (!strnequal(argv[3], "guest_ok=", 9)) {
 565                                 net_conf_addshare_usage(argc, argv);
 566                                 goto done;
 567                         }
 568                         switch (argv[3][9]) {
 569                                 case 'y':
 570                                 case 'Y':
 571                                         guest_ok = "yes";
 572                                         break;
 573                                 case 'n':
 574                                 case 'N':
 575                                         guest_ok = "no";
 576                                         break;
 577                                 default:
 578                                         net_conf_addshare_usage(argc, argv);
 579                                         goto done;
 580                         }
 581                 case 3:
 582                         if (!strnequal(argv[2], "writeable=", 10)) {
 583                                 net_conf_addshare_usage(argc, argv);
 584                                 goto done;
 585                         }
 586                         switch (argv[2][10]) {
 587                                 case 'y':
 588                                 case 'Y':
 589                                         writeable = "yes";
 590                                         break;
 591                                 case 'n':
 592                                 case 'N':
 593                                         writeable = "no";
 594                                         break;
 595                                 default:
 596                                         net_conf_addshare_usage(argc, argv);
 597                                         goto done;
 598                         }
 599                 case 2:
 600                         path = argv[1];
 601                         sharename = strdup_lower(argv[0]);
 602                         break;
 603         }
 604
 605         /*
 606          * validate arguments
 607          */
 608
 609         /* validate share name */
 610
 611         if (!validate_net_name(sharename, INVALID_SHARENAME_CHARS,
 612                                strlen(sharename)))
 613         {
 614                 d_fprintf(stderr, "ERROR: share name %s contains "
 615                         "invalid characters (any of %s)\n",
 616                         sharename, INVALID_SHARENAME_CHARS);
 617                 goto done;
 618         }
 619
 620         if (getpwnam(sharename)) {
 621                 d_fprintf(stderr, "ERROR: share name %s is already a valid "
 622                           "system user name.\n", sharename);
 623                 goto done;
 624         }
 625
 626         if (strequal(sharename, GLOBAL_NAME)) {
 627                 d_fprintf(stderr,
 628                           "ERROR: 'global' is not a valid share name.\n");
 629                 goto done;
 630         }
 631
 632         if (libnet_conf_share_exists(conf_ctx, sharename)) {
 633                 d_fprintf(stderr, "ERROR: share %s already exists.\n",
 634                           sharename);
 635                 goto done;
 636         }
 637
 638         /* validate path */
 639
 640         if (path[0] != '/') {
 641                 d_fprintf(stderr,
 642                           "Error: path '%s' is not an absolute path.\n",
 643                           path);
 644                 goto done;
 645         }
 646
 647         if (sys_stat(path, &sbuf) != 0) {
 648                 d_fprintf(stderr,
 649                           "ERROR: cannot stat path '%s' to ensure "
 650                           "this is a directory.\n"
 651                           "Error was '%s'.\n",
 652                           path, strerror(errno));
 653                 goto done;
 654         }
 655
 656         if (!S_ISDIR(sbuf.st_mode)) {
 657                 d_fprintf(stderr,
 658                           "ERROR: path '%s' is not a directory.\n",
 659                           path);
 660                 goto done;
 661         }
 662
 663         /*
 664          * create the share
 665          */
 666
 667         werr = libnet_conf_create_share(conf_ctx, sharename);
 668         if (!W_ERROR_IS_OK(werr)) {
 669                 d_fprintf(stderr, "Error creating share %s: %s\n",
 670                           sharename, dos_errstr(werr));
 671                 goto done;
 672         }
 673
 674         /*
 675          * fill the share with parameters
 676          */
 677
 678         werr = libnet_conf_set_parameter(conf_ctx, sharename, "path", path);
 679         if (!W_ERROR_IS_OK(werr)) {
 680                 d_fprintf(stderr, "Error setting parameter %s: %s\n",
 681                           "path", dos_errstr(werr));
 682                 goto done;
 683         }
 684
 685         if (comment != NULL) {
 686                 werr = libnet_conf_set_parameter(conf_ctx, sharename, "comment",
 687                                                  comment);
 688                 if (!W_ERROR_IS_OK(werr)) {
 689                         d_fprintf(stderr, "Error setting parameter %s: %s\n",
 690                                   "comment", dos_errstr(werr));
 691                         goto done;
 692                 }
 693         }
 694
 695         werr = libnet_conf_set_parameter(conf_ctx, sharename, "guest ok",
 696                                          guest_ok);
 697         if (!W_ERROR_IS_OK(werr)) {
 698                 d_fprintf(stderr, "Error setting parameter %s: %s\n",
 699                           "'guest ok'", dos_errstr(werr));
 700                 goto done;
 701         }
 702
 703         werr = libnet_conf_set_parameter(conf_ctx, sharename, "writeable",
 704                                          writeable);
 705         if (!W_ERROR_IS_OK(werr)) {
 706                 d_fprintf(stderr, "Error setting parameter %s: %s\n",
 707                           "writeable", dos_errstr(werr));
 708                 goto done;
 709         }
 710
 711         ret = 0;
 712
 713 done:
 714         SAFE_FREE(sharename);
 715         return ret;
 716 }
 717
 718 static int net_conf_delshare(struct libnet_conf_ctx *conf_ctx,
 719                              int argc, const char **argv)
 720 {
 721         int ret = -1;
 722         const char *sharename = NULL;
 723         WERROR werr = WERR_OK;
 724
 725         if (argc != 1) {
 726                 net_conf_delshare_usage(argc, argv);
 727                 goto done;
 728         }
 729         sharename = argv[0];
 730
 731         werr = libnet_conf_delete_share(conf_ctx, sharename);
 732         if (!W_ERROR_IS_OK(werr)) {
 733                 d_fprintf(stderr, "Error deleting share %s: %s\n",
 734                           sharename, dos_errstr(werr));
 735                 goto done;
 736         }
 737
 738         ret = 0;
 739 done:
 740         return ret;
 741 }
 742
 743 static int net_conf_setparm(struct libnet_conf_ctx *conf_ctx,
 744                             int argc, const char **argv)
 745 {
 746         int ret = -1;
 747         WERROR werr = WERR_OK;
 748         char *service = NULL;
 749         char *param = NULL;
 750         const char *value_str = NULL;
 751
 752         if (argc != 3) {
 753                 net_conf_setparm_usage(argc, argv);
 754                 goto done;
 755         }
 756         service = strdup_lower(argv[0]);
 757         param = strdup_lower(argv[1]);
 758         value_str = argv[2];
 759
 760         if (!libnet_conf_share_exists(conf_ctx, service)) {
 761                 werr = libnet_conf_create_share(conf_ctx, service);
 762                 if (!W_ERROR_IS_OK(werr)) {
 763                         d_fprintf(stderr, "Error creating share '%s': %s\n",
 764                                   service, dos_errstr(werr));
 765                         goto done;
 766                 }
 767         }
 768
 769         werr = libnet_conf_set_parameter(conf_ctx, service, param, value_str);
 770
 771         if (!W_ERROR_IS_OK(werr)) {
 772                 d_fprintf(stderr, "Error setting value '%s': %s\n",
 773                           param, dos_errstr(werr));
 774                 goto done;
 775         }
 776
 777         ret = 0;
 778
 779 done:
 780         SAFE_FREE(service);
 781         SAFE_FREE(param);
 782         return ret;
 783 }
 784
 785 static int net_conf_getparm(struct libnet_conf_ctx *conf_ctx,
 786                             int argc, const char **argv)
 787 {
 788         int ret = -1;
 789         WERROR werr = WERR_OK;
 790         char *service = NULL;
 791         char *param = NULL;
 792         char *valstr = NULL;
 793         TALLOC_CTX *ctx;
 794
 795         ctx = talloc_init("getparm");
 796
 797         if (argc != 2) {
 798                 net_conf_getparm_usage(argc, argv);
 799                 goto done;
 800         }
 801         service = strdup_lower(argv[0]);
 802         param = strdup_lower(argv[1]);
 803
 804         werr = libnet_conf_get_parameter(ctx, conf_ctx, service, param, &valstr);
 805
 806         if (W_ERROR_EQUAL(werr, WERR_NO_SUCH_SERVICE)) {
 807                 d_fprintf(stderr,
 808                           "Error: given service '%s' does not exist.\n",
 809                           service);
 810                 goto done;
 811         } else if (W_ERROR_EQUAL(werr, WERR_INVALID_PARAM)) {
 812                 d_fprintf(stderr,
 813                           "Error: given parameter '%s' is not set.\n",
 814                           param);
 815                 goto done;
 816         } else if (!W_ERROR_IS_OK(werr)) {
 817                 d_fprintf(stderr, "Error getting value '%s': %s.\n",
 818                           param, dos_errstr(werr));
 819                 goto done;
 820         }
 821
 822         d_printf("%s\n", valstr);
 823
 824         ret = 0;
 825 done:
 826         SAFE_FREE(service);
 827         SAFE_FREE(param);
 828         TALLOC_FREE(ctx);
 829         return ret;
 830 }
 831
 832 static int net_conf_delparm(struct libnet_conf_ctx *conf_ctx,
 833                             int argc, const char **argv)
 834 {
 835         int ret = -1;
 836         WERROR werr = WERR_OK;
 837         char *service = NULL;
 838         char *param = NULL;
 839
 840         if (argc != 2) {
 841                 net_conf_delparm_usage(argc, argv);
 842                 goto done;
 843         }
 844         service = strdup_lower(argv[0]);
 845         param = strdup_lower(argv[1]);
 846
 847         werr = libnet_conf_delete_parameter(conf_ctx, service, param);
 848
 849         if (W_ERROR_EQUAL(werr, WERR_NO_SUCH_SERVICE)) {
 850                 d_fprintf(stderr,
 851                           "Error: given service '%s' does not exist.\n",
 852                           service);
 853                 goto done;
 854         } else if (W_ERROR_EQUAL(werr, WERR_INVALID_PARAM)) {
 855                 d_fprintf(stderr,
 856                           "Error: given parameter '%s' is not set.\n",
 857                           param);
 858                 goto done;
 859         } else if (!W_ERROR_IS_OK(werr)) {
 860                 d_fprintf(stderr, "Error deleting value '%s': %s.\n",
 861                           param, dos_errstr(werr));
 862                 goto done;
 863         }
 864
 865         ret = 0;
 866
 867 done:
 868         SAFE_FREE(service);
 869         SAFE_FREE(param);
 870         return ret;
 871 }
 872
 873
 874 /**********************************************************************
 875  *
 876  * Wrapper and net_conf_run_function mechanism.
 877  *
 878  **********************************************************************/
 879
 880 /**
 881  * Wrapper function to call the main conf functions.
 882  * The wrapper calls handles opening and closing of the
 883  * configuration.
 884  */
 885 static int net_conf_wrap_function(int (*fn)(struct libnet_conf_ctx *,
 886                                             int, const char **),
 887                                   int argc, const char **argv)
 888 {
 889         WERROR werr;
 890         TALLOC_CTX *mem_ctx = talloc_stackframe();
 891         struct libnet_conf_ctx *conf_ctx;
 892         int ret = -1;
 893
 894         werr = libnet_conf_open(mem_ctx, &conf_ctx);
 895
 896         if (!W_ERROR_IS_OK(werr)) {
 897                 return -1;
 898         }
 899
 900         ret = fn(conf_ctx, argc, argv);
 901
 902         libnet_conf_close(conf_ctx);
 903
 904         return ret;
 905 }
 906
 907 /*
 908  * We need a functable struct of our own, because the
 909  * functions are called through a wrapper that handles
 910  * the opening and closing of the configuration, and so on.
 911  */
 912 struct conf_functable {
 913         const char *funcname;
 914         int (*fn)(struct libnet_conf_ctx *ctx, int argc, const char **argv);
 915         const char *helptext;
 916 };
 917
 918 /**
 919  * This imitates net_run_function2 but calls the main functions
 920  * through the wrapper net_conf_wrap_function().
 921  */
 922 static int net_conf_run_function(int argc, const char **argv,
 923                                  const char *whoami,
 924                                  struct conf_functable *table)
 925 {
 926         int i;
 927
 928         if (argc != 0) {
 929                 for (i=0; table[i].funcname; i++) {
 930                         if (StrCaseCmp(argv[0], table[i].funcname) == 0)
 931                                 return net_conf_wrap_function(table[i].fn,
 932                                                               argc-1,
 933                                                               argv+1);
 934                 }
 935         }
 936
 937         for (i=0; table[i].funcname; i++) {
 938                 d_printf("%s %-15s %s\n", whoami, table[i].funcname,
 939                          table[i].helptext);
 940         }
 941
 942         return -1;
 943 }
 944
 945 /*
 946  * Entry-point for all the CONF functions.
 947  */
 948
 949 int net_conf(int argc, const char **argv)
 950 {
 951         int ret = -1;
 952         struct conf_functable func_table[] = {
 953                 {"list", net_conf_list,
 954                  "Dump the complete configuration in smb.conf like format."},
 955                 {"import", net_conf_import,
 956                  "Import configuration from file in smb.conf format."},
 957                 {"listshares", net_conf_listshares,
 958                  "List the share names."},
 959                 {"drop", net_conf_drop,
 960                  "Delete the complete configuration."},
 961                 {"showshare", net_conf_showshare,
 962                  "Show the definition of a share."},
 963                 {"addshare", net_conf_addshare,
 964                  "Create a new share."},
 965                 {"delshare", net_conf_delshare,
 966                  "Delete a share."},
 967                 {"setparm", net_conf_setparm,
 968                  "Store a parameter."},
 969                 {"getparm", net_conf_getparm,
 970                  "Retrieve the value of a parameter."},
 971                 {"delparm", net_conf_delparm,
 972                  "Delete a parameter."},
 973                 {NULL, NULL, NULL}
 974         };
 975
 976         ret = net_conf_run_function(argc, argv, "net conf", func_table);
 977
 978         return ret;
 979 }
 980