release/src-rt-6.x.4708/router/samba-3.5.8/source4/lib/registry/tools/regshell.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    simple registry frontend
   4
   5    Copyright (C) Jelmer Vernooij 2004-2007
   6    Copyright (C) Wilco Baan Hofman 2009
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/registry/registry.h"
  24 #include "lib/cmdline/popt_common.h"
  25 #include "lib/events/events.h"
  26 #include "system/time.h"
  27 #include "lib/smbreadline/smbreadline.h"
  28 #include "librpc/gen_ndr/ndr_security.h"
  29 #include "lib/registry/tools/common.h"
  30 #include "param/param.h"
  31
  32 struct regshell_context {
  33         struct registry_context *registry;
  34         char *path;
  35         char *predef;
  36         struct registry_key *current;
  37         struct registry_key *root;
  38 };
  39
  40 static WERROR get_full_path(struct regshell_context *ctx, char *path, char **ret_path)
  41 {
  42         char *dir;
  43         char *tmp;
  44         char *new_path;
  45
  46         if (path[0] == '\\') {
  47                 new_path = talloc_strdup(ctx, "");
  48         } else {
  49                 new_path = talloc_strdup(ctx, ctx->path);
  50         }
  51
  52         dir = strtok(path, "\\");
  53         if (dir == NULL) {
  54                 *ret_path = new_path;
  55                 return WERR_OK;
  56         }
  57         do {
  58                 if (strcmp(dir, "..") == 0) {
  59                         if (strchr(new_path, '\\')) {
  60                                 new_path[strrchr(new_path, '\\') - new_path] = '\0';
  61                         } else {
  62                                 tmp = new_path;
  63                                 new_path = talloc_strdup(ctx, "");
  64                                 talloc_free(tmp);
  65                         }
  66                         continue;
  67                 }
  68                 if (strcmp(dir, ".") == 0) {
  69                         continue;
  70                 }
  71
  72                 tmp = new_path;
  73                 /* No prepending a backslash */
  74                 if (strcmp(new_path, "") == 0) {
  75                         new_path = talloc_strdup(ctx, dir);
  76                 } else {
  77                         new_path = talloc_asprintf(ctx, "%s\\%s", new_path, dir);
  78                 }
  79                 talloc_free(tmp);
  80
  81         } while ((dir = strtok(NULL, "\\")));
  82
  83         *ret_path = new_path;
  84         return WERR_OK;
  85 }
  86
  87 /* *
  88  * ck/cd - change key
  89  * ls - list values/keys
  90  * rmval/rm - remove value
  91  * rmkey/rmdir - remove key
  92  * mkkey/mkdir - make key
  93  * ch - change hive
  94  * info - show key info
  95  * save - save hive
  96  * print - print value
  97  * help
  98  * exit
  99  */
 100
 101 static WERROR cmd_info(struct regshell_context *ctx, int argc, char **argv)
 102 {
 103         struct security_descriptor *sec_desc = NULL;
 104         time_t last_mod;
 105         WERROR error;
 106         const char *classname = NULL;
 107         NTTIME last_change;
 108         uint32_t max_subkeynamelen;
 109         uint32_t max_valnamelen;
 110         uint32_t max_valbufsize;
 111         uint32_t num_subkeys;
 112         uint32_t num_values;
 113
 114         error = reg_key_get_info(ctx, ctx->current, &classname, &num_subkeys, &num_values,
 115                                  &last_change, &max_subkeynamelen, &max_valnamelen, &max_valbufsize);
 116         if (!W_ERROR_IS_OK(error)) {
 117                 printf("Error getting key info: %s\n", win_errstr(error));
 118                 return error;
 119         }
 120
 121
 122         printf("Name: %s\n", strchr(ctx->path, '\\')?strrchr(ctx->path, '\\')+1:
 123                    ctx->path);
 124         printf("Full path: %s\n", ctx->path);
 125         if (classname != NULL)
 126                 printf("Key Class: %s\n", classname);
 127         last_mod = nt_time_to_unix(last_change);
 128         printf("Time Last Modified: %s\n", ctime(&last_mod));
 129         printf("Number of subkeys: %d\n", num_subkeys);
 130         printf("Number of values: %d\n", num_values);
 131
 132         if (max_valnamelen > 0)
 133                 printf("Maximum value name length: %d\n", max_valnamelen);
 134
 135         if (max_valbufsize > 0)
 136                 printf("Maximum value data length: %d\n", max_valbufsize);
 137
 138         if (max_subkeynamelen > 0)
 139                 printf("Maximum sub key name length: %d\n", max_subkeynamelen);
 140
 141         error = reg_get_sec_desc(ctx, ctx->current, &sec_desc);
 142         if (!W_ERROR_IS_OK(error)) {
 143                 printf("Error getting security descriptor\n");
 144                 return error;
 145         }
 146         ndr_print_debug((ndr_print_fn_t)ndr_print_security_descriptor,
 147                         "Security", sec_desc);
 148         talloc_free(sec_desc);
 149
 150         return WERR_OK;
 151 }
 152
 153 static WERROR cmd_predef(struct regshell_context *ctx, int argc, char **argv)
 154 {
 155         struct registry_key *ret = NULL;
 156         if (argc < 2) {
 157                 fprintf(stderr, "Usage: predef predefined-key-name\n");
 158         } else if (!ctx) {
 159                 fprintf(stderr, "No full registry loaded, no predefined keys defined\n");
 160         } else {
 161                 WERROR error = reg_get_predefined_key_by_name(ctx->registry,
 162                                                               argv[1], &ret);
 163
 164                 if (!W_ERROR_IS_OK(error)) {
 165                         fprintf(stderr, "Error opening predefined key %s: %s\n",
 166                                 argv[1], win_errstr(error));
 167                         return error;
 168                 }
 169
 170                 ctx->predef = strupper_talloc(ctx, argv[1]);
 171                 ctx->current = ret;
 172                 ctx->root = ret;
 173         }
 174
 175         return WERR_OK;
 176 }
 177
 178 static WERROR cmd_pwd(struct regshell_context *ctx,
 179                       int argc, char **argv)
 180 {
 181         if (ctx->predef) {
 182                 printf("%s\\", ctx->predef);
 183         }
 184         printf("%s\n", ctx->path);
 185         return WERR_OK;
 186 }
 187
 188 static WERROR cmd_set(struct regshell_context *ctx, int argc, char **argv)
 189 {
 190         struct registry_value val;
 191         WERROR error;
 192
 193         if (argc < 4) {
 194                 fprintf(stderr, "Usage: set value-name type value\n");
 195                 return WERR_INVALID_PARAM;
 196         }
 197
 198         if (!reg_string_to_val(ctx, lp_iconv_convenience(cmdline_lp_ctx),
 199                                argv[2], argv[3], &val.data_type,
 200                                &val.data)) {
 201                 fprintf(stderr, "Unable to interpret data\n");
 202                 return WERR_INVALID_PARAM;
 203         }
 204
 205         error = reg_val_set(ctx->current, argv[1], val.data_type, val.data);
 206         if (!W_ERROR_IS_OK(error)) {
 207                 fprintf(stderr, "Error setting value: %s\n", win_errstr(error));
 208                 return error;
 209         }
 210
 211         return WERR_OK;
 212 }
 213
 214 static WERROR cmd_ck(struct regshell_context *ctx, int argc, char **argv)
 215 {
 216         struct registry_key *nkey = NULL;
 217         char *full_path;
 218         WERROR error;
 219
 220         if(argc == 2) {
 221                 if (!W_ERROR_IS_OK(get_full_path(ctx, argv[1], &full_path))) {
 222                         fprintf(stderr, "Unable to parse the supplied path\n");
 223                         return WERR_INVALID_PARAM;
 224                 }
 225                 error = reg_open_key(ctx->registry, ctx->root, full_path,
 226                                      &nkey);
 227                 if(!W_ERROR_IS_OK(error)) {
 228                         DEBUG(0, ("Error opening specified key: %s\n",
 229                                 win_errstr(error)));
 230                         return error;
 231                 }
 232
 233                 talloc_free(ctx->path);
 234                 ctx->path = full_path;
 235
 236                 ctx->current = nkey;
 237         }
 238         printf("New path is: %s\\%s\n", ctx->predef?ctx->predef:"", ctx->path);
 239
 240         return WERR_OK;
 241 }
 242
 243 static WERROR cmd_print(struct regshell_context *ctx, int argc, char **argv)
 244 {
 245         uint32_t value_type;
 246         DATA_BLOB value_data;
 247         WERROR error;
 248
 249         if (argc != 2) {
 250                 fprintf(stderr, "Usage: print <valuename>\n");
 251                 return WERR_INVALID_PARAM;
 252         }
 253
 254         error = reg_key_get_value_by_name(ctx, ctx->current, argv[1],
 255                                           &value_type, &value_data);
 256         if (!W_ERROR_IS_OK(error)) {
 257                 fprintf(stderr, "No such value '%s'\n", argv[1]);
 258                 return error;
 259         }
 260
 261         printf("%s\n%s\n", str_regtype(value_type),
 262                    reg_val_data_string(ctx, lp_iconv_convenience(cmdline_lp_ctx), value_type, value_data));
 263
 264         return WERR_OK;
 265 }
 266
 267 static WERROR cmd_ls(struct regshell_context *ctx, int argc, char **argv)
 268 {
 269         int i;
 270         WERROR error;
 271         uint32_t valuetype;
 272         DATA_BLOB valuedata;
 273         const char *name = NULL;
 274
 275         for (i = 0; W_ERROR_IS_OK(error = reg_key_get_subkey_by_index(ctx,
 276                                                                       ctx->current,
 277                                                                       i,
 278                                                                       &name,
 279                                                                       NULL,
 280                                                                       NULL)); i++) {
 281                 printf("K %s\n", name);
 282         }
 283
 284         if (!W_ERROR_EQUAL(error, WERR_NO_MORE_ITEMS)) {
 285                 fprintf(stderr, "Error occured while browsing thru keys: %s\n",
 286                         win_errstr(error));
 287                 return error;
 288         }
 289
 290         for (i = 0; W_ERROR_IS_OK(error = reg_key_get_value_by_index(ctx,
 291                 ctx->current, i, &name, &valuetype, &valuedata)); i++)
 292                 printf("V \"%s\" %s %s\n", name, str_regtype(valuetype),
 293                            reg_val_data_string(ctx, lp_iconv_convenience(cmdline_lp_ctx), valuetype, valuedata));
 294
 295         return WERR_OK;
 296 }
 297 static WERROR cmd_mkkey(struct regshell_context *ctx, int argc, char **argv)
 298 {
 299         struct registry_key *tmp;
 300         WERROR error;
 301
 302         if(argc < 2) {
 303                 fprintf(stderr, "Usage: mkkey <keyname>\n");
 304                 return WERR_INVALID_PARAM;
 305         }
 306
 307         error = reg_key_add_name(ctx, ctx->current, argv[1], 0, NULL, &tmp);
 308
 309         if (!W_ERROR_IS_OK(error)) {
 310                 fprintf(stderr, "Error adding new subkey '%s': %s\n", argv[1],
 311                         win_errstr(error));
 312                 return error;
 313         }
 314
 315         return WERR_OK;
 316 }
 317
 318 static WERROR cmd_rmkey(struct regshell_context *ctx,
 319                         int argc, char **argv)
 320 {
 321         WERROR error;
 322
 323         if(argc < 2) {
 324                 fprintf(stderr, "Usage: rmkey <name>\n");
 325                 return WERR_INVALID_PARAM;
 326         }
 327
 328         error = reg_key_del(ctx->current, argv[1]);
 329         if(!W_ERROR_IS_OK(error)) {
 330                 fprintf(stderr, "Error deleting '%s'\n", argv[1]);
 331                 return error;
 332         } else {
 333                 fprintf(stderr, "Successfully deleted '%s'\n", argv[1]);
 334         }
 335
 336         return WERR_OK;
 337 }
 338
 339 static WERROR cmd_rmval(struct regshell_context *ctx, int argc, char **argv)
 340 {
 341         WERROR error;
 342
 343         if(argc < 2) {
 344                 fprintf(stderr, "Usage: rmval <valuename>\n");
 345                 return WERR_INVALID_PARAM;
 346         }
 347
 348         error = reg_del_value(ctx->current, argv[1]);
 349         if(!W_ERROR_IS_OK(error)) {
 350                 fprintf(stderr, "Error deleting value '%s'\n", argv[1]);
 351                 return error;
 352         } else {
 353                 fprintf(stderr, "Successfully deleted value '%s'\n", argv[1]);
 354         }
 355
 356         return WERR_OK;
 357 }
 358
 359 _NORETURN_ static WERROR cmd_exit(struct regshell_context *ctx,
 360                                   int argc, char **argv)
 361 {
 362         exit(0);
 363 }
 364
 365 static WERROR cmd_help(struct regshell_context *ctx, int, char **);
 366
 367 static struct {
 368         const char *name;
 369         const char *alias;
 370         const char *help;
 371         WERROR (*handle)(struct regshell_context *ctx, int argc, char **argv);
 372 } regshell_cmds[] = {
 373         {"ck", "cd", "Change current key", cmd_ck },
 374         {"info", "i", "Show detailed information of a key", cmd_info },
 375         {"list", "ls", "List values/keys in current key", cmd_ls },
 376         {"print", "p", "Print value", cmd_print },
 377         {"mkkey", "mkdir", "Make new key", cmd_mkkey },
 378         {"rmval", "rm", "Remove value", cmd_rmval },
 379         {"rmkey", "rmdir", "Remove key", cmd_rmkey },
 380         {"pwd", "pwk", "Printing current key", cmd_pwd },
 381         {"set", "update", "Update value", cmd_set },
 382         {"help", "?", "Help", cmd_help },
 383         {"exit", "quit", "Exit", cmd_exit },
 384         {"predef", "predefined", "Go to predefined key", cmd_predef },
 385         {NULL }
 386 };
 387
 388 static WERROR cmd_help(struct regshell_context *ctx,
 389                        int argc, char **argv)
 390 {
 391         int i;
 392         printf("Available commands:\n");
 393         for(i = 0; regshell_cmds[i].name; i++) {
 394                 printf("%s - %s\n", regshell_cmds[i].name,
 395                         regshell_cmds[i].help);
 396         }
 397         return WERR_OK;
 398 }
 399
 400 static WERROR process_cmd(struct regshell_context *ctx,
 401                           char *line)
 402 {
 403         int argc;
 404         char **argv = NULL;
 405         int ret, i;
 406
 407         if ((ret = poptParseArgvString(line, &argc, (const char ***) &argv)) != 0) {
 408                 fprintf(stderr, "regshell: %s\n", poptStrerror(ret));
 409                 return WERR_INVALID_PARAM;
 410         }
 411
 412         for(i = 0; regshell_cmds[i].name; i++) {
 413                 if(!strcmp(regshell_cmds[i].name, argv[0]) ||
 414                    (regshell_cmds[i].alias && !strcmp(regshell_cmds[i].alias, argv[0]))) {
 415                         return regshell_cmds[i].handle(ctx, argc, argv);
 416                 }
 417         }
 418
 419         fprintf(stderr, "No such command '%s'\n", argv[0]);
 420
 421         return WERR_INVALID_PARAM;
 422 }
 423
 424 #define MAX_COMPLETIONS 100
 425
 426 static struct registry_key *current_key = NULL;
 427
 428 static char **reg_complete_command(const char *text, int start, int end)
 429 {
 430         /* Complete command */
 431         char **matches;
 432         int i, len, samelen=0, count=1;
 433
 434         matches = malloc_array_p(char *, MAX_COMPLETIONS);
 435         if (!matches) return NULL;
 436         matches[0] = NULL;
 437
 438         len = strlen(text);
 439         for (i=0;regshell_cmds[i].handle && count < MAX_COMPLETIONS-1;i++) {
 440                 if (strncmp(text, regshell_cmds[i].name, len) == 0) {
 441                         matches[count] = strdup(regshell_cmds[i].name);
 442                         if (!matches[count])
 443                                 goto cleanup;
 444                         if (count == 1)
 445                                 samelen = strlen(matches[count]);
 446                         else
 447                                 while (strncmp(matches[count], matches[count-1], samelen) != 0)
 448                                         samelen--;
 449                         count++;
 450                 }
 451         }
 452
 453         switch (count) {
 454         case 0: /* should never happen */
 455         case 1:
 456                 goto cleanup;
 457         case 2:
 458                 matches[0] = strdup(matches[1]);
 459                 break;
 460         default:
 461                 matches[0] = strndup(matches[1], samelen);
 462         }
 463         matches[count] = NULL;
 464         return matches;
 465
 466 cleanup:
 467         count--;
 468         while (count >= 0) {
 469                 free(matches[count]);
 470                 count--;
 471         }
 472         free(matches);
 473         return NULL;
 474 }
 475
 476 static char **reg_complete_key(const char *text, int start, int end)
 477 {
 478         struct registry_key *base;
 479         const char *subkeyname;
 480         int i, j = 1;
 481         int samelen = 0;
 482         int len;
 483         char **matches;
 484         const char *base_n = "";
 485         TALLOC_CTX *mem_ctx;
 486         WERROR status;
 487
 488         matches = malloc_array_p(char *, MAX_COMPLETIONS);
 489         if (!matches) return NULL;
 490         matches[0] = NULL;
 491         mem_ctx = talloc_init("completion");
 492
 493         base = current_key;
 494
 495         len = strlen(text);
 496         for(i = 0; j < MAX_COMPLETIONS-1; i++) {
 497                 status = reg_key_get_subkey_by_index(mem_ctx, base, i,
 498                                              &subkeyname, NULL, NULL);
 499                 if(W_ERROR_IS_OK(status)) {
 500                         if(!strncmp(text, subkeyname, len)) {
 501                                 matches[j] = strdup(subkeyname);
 502                                 j++;
 503
 504                                 if (j == 1)
 505                                         samelen = strlen(matches[j]);
 506                                 else
 507                                         while (strncmp(matches[j], matches[j-1], samelen) != 0)
 508                                                 samelen--;
 509                         }
 510                 } else if(W_ERROR_EQUAL(status, WERR_NO_MORE_ITEMS)) {
 511                         break;
 512                 } else {
 513                         printf("Error creating completion list: %s\n",
 514                                 win_errstr(status));
 515                         talloc_free(mem_ctx);
 516                         return NULL;
 517                 }
 518         }
 519
 520         if (j == 1) { /* No matches at all */
 521                 SAFE_FREE(matches);
 522                 talloc_free(mem_ctx);
 523                 return NULL;
 524         }
 525
 526         if (j == 2) { /* Exact match */
 527                 asprintf(&matches[0], "%s%s", base_n, matches[1]);
 528         } else {
 529                 asprintf(&matches[0], "%s%s", base_n,
 530                                 talloc_strndup(mem_ctx, matches[1], samelen));
 531         }
 532         talloc_free(mem_ctx);
 533
 534         matches[j] = NULL;
 535         return matches;
 536 }
 537
 538 static char **reg_completion(const char *text, int start, int end)
 539 {
 540         smb_readline_ca_char(' ');
 541
 542         if (start == 0) {
 543                 return reg_complete_command(text, start, end);
 544         } else {
 545                 return reg_complete_key(text, start, end);
 546         }
 547 }
 548
 549 int main(int argc, char **argv)
 550 {
 551         int opt;
 552         const char *file = NULL;
 553         poptContext pc;
 554         const char *remote = NULL;
 555         struct regshell_context *ctx;
 556         struct tevent_context *ev_ctx;
 557         bool ret = true;
 558         struct poptOption long_options[] = {
 559                 POPT_AUTOHELP
 560                 {"file", 'F', POPT_ARG_STRING, &file, 0, "open hive file", NULL },
 561                 {"remote", 'R', POPT_ARG_STRING, &remote, 0, "connect to specified remote server", NULL},
 562                 POPT_COMMON_SAMBA
 563                 POPT_COMMON_CREDENTIALS
 564                 POPT_COMMON_VERSION
 565                 { NULL }
 566         };
 567
 568         pc = poptGetContext(argv[0], argc, (const char **) argv, long_options,0);
 569
 570         while((opt = poptGetNextOpt(pc)) != -1) {
 571         }
 572
 573         ctx = talloc_zero(NULL, struct regshell_context);
 574
 575         ev_ctx = s4_event_context_init(ctx);
 576
 577         if (remote != NULL) {
 578                 ctx->registry = reg_common_open_remote(remote, ev_ctx,
 579                                          cmdline_lp_ctx, cmdline_credentials);
 580         } else if (file != NULL) {
 581                 ctx->current = reg_common_open_file(file, ev_ctx, cmdline_lp_ctx, cmdline_credentials);
 582                 if (ctx->current == NULL)
 583                         return 1;
 584                 ctx->registry = ctx->current->context;
 585                 ctx->path = talloc_strdup(ctx, "");
 586                 ctx->predef = NULL;
 587                 ctx->root = ctx->current;
 588         } else {
 589                 ctx->registry = reg_common_open_local(cmdline_credentials, ev_ctx, cmdline_lp_ctx);
 590         }
 591
 592         if (ctx->registry == NULL)
 593                 return 1;
 594
 595         if (ctx->current == NULL) {
 596                 int i;
 597
 598                 for (i = 0; (reg_predefined_keys[i].handle != 0) &&
 599                         (ctx->current == NULL); i++) {
 600                         WERROR err;
 601                         err = reg_get_predefined_key(ctx->registry,
 602                                                      reg_predefined_keys[i].handle,
 603                                                      &ctx->current);
 604                         if (W_ERROR_IS_OK(err)) {
 605                                 ctx->predef = talloc_strdup(ctx,
 606                                                           reg_predefined_keys[i].name);
 607                                 ctx->path = talloc_strdup(ctx, "");
 608                                 ctx->root = ctx->current;
 609                                 break;
 610                         } else {
 611                                 ctx->current = NULL;
 612                                 ctx->root = NULL;
 613                         }
 614                 }
 615         }
 616
 617         if (ctx->current == NULL) {
 618                 fprintf(stderr, "Unable to access any of the predefined keys\n");
 619                 return -1;
 620         }
 621
 622         poptFreeContext(pc);
 623
 624         while (true) {
 625                 char *line, *prompt;
 626
 627                 asprintf(&prompt, "%s\\%s> ", ctx->predef?ctx->predef:"", ctx->path);
 628
 629                 current_key = ctx->current;             /* No way to pass a void * pointer
 630                                                            via readline :-( */
 631                 line = smb_readline(prompt, NULL, reg_completion);
 632
 633                 if (line == NULL) {
 634                         free(prompt);
 635                         break;
 636                 }
 637
 638                 if (line[0] != '\n') {
 639                         ret = W_ERROR_IS_OK(process_cmd(ctx, line));
 640                 }
 641                 free(line);
 642                 free(prompt);
 643         }
 644         talloc_free(ctx);
 645
 646         return (ret?0:1);
 647 }