source3/rpcclient/rpcclient.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.2
   4    RPC pipe client
   5
   6    Copyright (C) Tim Potter 2000-2001
   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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "rpcclient.h"
  25
  26 extern pstring debugf;
  27
  28 DOM_SID domain_sid;
  29
  30 /* List to hold groups of commands */
  31
  32 static struct cmd_list {
  33         struct cmd_list *prev, *next;
  34         struct cmd_set *cmd_set;
  35 } *cmd_list;
  36
  37 /****************************************************************************
  38 handle completion of commands for readline
  39 ****************************************************************************/
  40 static char **completion_fn(char *text, int start, int end)
  41 {
  42 #define MAX_COMPLETIONS 100
  43         char **matches;
  44         int i, count=0;
  45         struct cmd_list *commands = cmd_list;
  46
  47 #if 0   /* JERRY */
  48         /* FIXME!!!  -- what to do when completing argument? */
  49         /* for words not at the start of the line fallback
  50            to filename completion */
  51         if (start)
  52                 return NULL;
  53 #endif
  54
  55         /* make sure we have a list of valid commands */
  56         if (!commands)
  57                 return NULL;
  58
  59         matches = (char **)malloc(sizeof(matches[0])*MAX_COMPLETIONS);
  60         if (!matches) return NULL;
  61
  62         matches[count++] = strdup(text);
  63         if (!matches[0]) return NULL;
  64
  65         while (commands && count < MAX_COMPLETIONS-1)
  66         {
  67                 if (!commands->cmd_set)
  68                         break;
  69
  70                 for (i=0; commands->cmd_set[i].name; i++)
  71                 {
  72                         if ((strncmp(text, commands->cmd_set[i].name, strlen(text)) == 0) &&
  73                                 commands->cmd_set[i].fn)
  74                         {
  75                                 matches[count] = strdup(commands->cmd_set[i].name);
  76                                 if (!matches[count])
  77                                         return NULL;
  78                                 count++;
  79                         }
  80                 }
  81
  82                 commands = commands->next;
  83
  84         }
  85
  86         if (count == 2) {
  87                 SAFE_FREE(matches[0]);
  88                 matches[0] = strdup(matches[1]);
  89         }
  90         matches[count] = NULL;
  91         return matches;
  92 }
  93
  94 /***********************************************************************
  95  * read in username/password credentials from a file
  96  */
  97 static void read_authfile (
  98         char *filename,
  99         char* username,
 100         char* password,
 101         char* domain
 102 )
 103 {
 104         FILE *auth;
 105         fstring buf;
 106         uint16 len = 0;
 107         char *ptr, *val, *param;
 108
 109         if ((auth=sys_fopen(filename, "r")) == NULL)
 110         {
 111                 printf ("ERROR: Unable to open credentials file!\n");
 112                 return;
 113         }
 114
 115         while (!feof(auth))
 116         {
 117                 /* get a line from the file */
 118                 if (!fgets (buf, sizeof(buf), auth))
 119                         continue;
 120
 121                 len = strlen(buf);
 122
 123                 /* skip empty lines */
 124                 if ((len) && (buf[len-1]=='\n'))
 125                 {
 126                         buf[len-1] = '\0';
 127                         len--;
 128                 }
 129                 if (len == 0)
 130                         continue;
 131
 132                 /* break up the line into parameter & value.
 133                    will need to eat a little whitespace possibly */
 134                 param = buf;
 135                 if (!(ptr = strchr_m(buf, '=')))
 136                         continue;
 137                 val = ptr+1;
 138                 *ptr = '\0';
 139
 140                 /* eat leading white space */
 141                 while ((*val!='\0') && ((*val==' ') || (*val=='\t')))
 142                         val++;
 143
 144                 if (strwicmp("password", param) == 0)
 145                         fstrcpy (password, val);
 146                 else if (strwicmp("username", param) == 0)
 147                         fstrcpy (username, val);
 148                 else if (strwicmp("domain", param) == 0)
 149                         fstrcpy (domain, val);
 150
 151                 memset(buf, 0, sizeof(buf));
 152         }
 153         fclose(auth);
 154
 155         return;
 156 }
 157
 158 static char* next_command (char** cmdstr)
 159 {
 160         static pstring          command;
 161         char                    *p;
 162
 163         if (!cmdstr || !(*cmdstr))
 164                 return NULL;
 165
 166         p = strchr_m(*cmdstr, ';');
 167         if (p)
 168                 *p = '\0';
 169         pstrcpy(command, *cmdstr);
 170         *cmdstr = p;
 171
 172         return command;
 173 }
 174
 175 static void get_username (char *username)
 176 {
 177         if (getenv("USER"))
 178                 pstrcpy(username,getenv("USER"));
 179
 180         if (*username == 0 && getenv("LOGNAME"))
 181                 pstrcpy(username,getenv("LOGNAME"));
 182
 183         if (*username == 0) {
 184                 pstrcpy(username,"GUEST");
 185         }
 186
 187         return;
 188 }
 189
 190 /* Fetch the SID for this computer */
 191
 192 void fetch_machine_sid(struct cli_state *cli)
 193 {
 194         POLICY_HND pol;
 195         NTSTATUS result = NT_STATUS_OK;
 196         uint32 info_class = 5;
 197         fstring domain_name;
 198         static BOOL got_domain_sid;
 199         TALLOC_CTX *mem_ctx;
 200
 201         if (got_domain_sid) return;
 202
 203         if (!(mem_ctx=talloc_init()))
 204         {
 205                 DEBUG(0,("fetch_domain_sid: talloc_init returned NULL!\n"));
 206                 goto error;
 207         }
 208
 209
 210         if (!cli_nt_session_open (cli, PIPE_LSARPC)) {
 211                 fprintf(stderr, "could not initialise lsa pipe\n");
 212                 goto error;
 213         }
 214
 215         result = cli_lsa_open_policy(cli, mem_ctx, True,
 216                                      SEC_RIGHTS_MAXIMUM_ALLOWED,
 217                                      &pol);
 218         if (!NT_STATUS_IS_OK(result)) {
 219                 goto error;
 220         }
 221
 222         result = cli_lsa_query_info_policy(cli, mem_ctx, &pol, info_class,
 223                                            domain_name, &domain_sid);
 224         if (!NT_STATUS_IS_OK(result)) {
 225                 goto error;
 226         }
 227
 228         got_domain_sid = True;
 229
 230         cli_lsa_close(cli, mem_ctx, &pol);
 231         cli_nt_session_close(cli);
 232         talloc_destroy(mem_ctx);
 233
 234         return;
 235
 236  error:
 237         fprintf(stderr, "could not obtain sid for domain %s\n", cli->domain);
 238
 239         if (!NT_STATUS_IS_OK(result)) {
 240                 fprintf(stderr, "error: %s\n", get_nt_error_msg(result));
 241         }
 242
 243         exit(1);
 244 }
 245
 246 /* Initialise client credentials for authenticated pipe access */
 247
 248 void init_rpcclient_creds(struct ntuser_creds *creds, char* username,
 249                           char* domain, char* password)
 250 {
 251         ZERO_STRUCTP(creds);
 252
 253         if (lp_encrypted_passwords()) {
 254                 pwd_make_lm_nt_16(&creds->pwd, password);
 255         } else {
 256                 pwd_set_cleartext(&creds->pwd, password);
 257         }
 258
 259         fstrcpy(creds->user_name, username);
 260         fstrcpy(creds->domain, domain);
 261
 262         if (! *username) {
 263                 creds->pwd.null_pwd = True;
 264         }
 265 }
 266
 267
 268 /* Display help on commands */
 269
 270 static NTSTATUS cmd_help(struct cli_state *cli, TALLOC_CTX *mem_ctx,
 271                          int argc, char **argv)
 272 {
 273         struct cmd_list *tmp;
 274         struct cmd_set *tmp_set;
 275
 276         /* Usage */
 277
 278         if (argc > 2) {
 279                 printf("Usage: %s [command]\n", argv[0]);
 280                 return NT_STATUS_OK;
 281         }
 282
 283         /* Help on one command */
 284
 285         if (argc == 2) {
 286                 for (tmp = cmd_list; tmp; tmp = tmp->next) {
 287
 288                         tmp_set = tmp->cmd_set;
 289
 290                         while(tmp_set->name) {
 291                                 if (strequal(argv[1], tmp_set->name)) {
 292                                         if (tmp_set->usage &&
 293                                             tmp_set->usage[0])
 294                                                 printf("%s\n", tmp_set->usage);
 295                                         else
 296                                                 printf("No help for %s\n", tmp_set->name);
 297
 298                                         return NT_STATUS_OK;
 299                                 }
 300
 301                                 tmp_set++;
 302                         }
 303                 }
 304
 305                 printf("No such command: %s\n", argv[1]);
 306                 return NT_STATUS_OK;
 307         }
 308
 309         /* List all commands */
 310
 311         for (tmp = cmd_list; tmp; tmp = tmp->next) {
 312
 313                 tmp_set = tmp->cmd_set;
 314
 315                 while(tmp_set->name) {
 316
 317                         printf("%15s\t\t%s\n", tmp_set->name,
 318                                tmp_set->description);
 319
 320                         tmp_set++;
 321                 }
 322         }
 323
 324         return NT_STATUS_OK;
 325 }
 326
 327 /* Change the debug level */
 328
 329 static NTSTATUS cmd_debuglevel(struct cli_state *cli, TALLOC_CTX *mem_ctx,
 330                                int argc, char **argv)
 331 {
 332         if (argc > 2) {
 333                 printf("Usage: %s [debuglevel]\n", argv[0]);
 334                 return NT_STATUS_OK;
 335         }
 336
 337         if (argc == 2) {
 338                 DEBUGLEVEL = atoi(argv[1]);
 339         }
 340
 341         printf("debuglevel is %d\n", DEBUGLEVEL);
 342
 343         return NT_STATUS_OK;
 344 }
 345
 346 static NTSTATUS cmd_quit(struct cli_state *cli, TALLOC_CTX *mem_ctx,
 347                          int argc, char **argv)
 348 {
 349         exit(0);
 350         return NT_STATUS_OK; /* NOTREACHED */
 351 }
 352
 353 /* Build in rpcclient commands */
 354
 355 static struct cmd_set rpcclient_commands[] = {
 356
 357         { "GENERAL OPTIONS" },
 358
 359         { "help",       cmd_help,       NULL,   "Get help on commands", "[command]" },
 360         { "?",          cmd_help,       NULL,   "Get help on commands", "[command]" },
 361         { "debuglevel", cmd_debuglevel, NULL,   "Set debug level", "level" },
 362         { "exit",       cmd_quit,       NULL,   "Exit program", "" },
 363         { "quit",       cmd_quit,       NULL,   "Exit program", "" },
 364
 365         { NULL }
 366 };
 367
 368 static struct cmd_set separator_command[] = {
 369         { "---------------", NULL,      NULL,   "----------------------" },
 370         { NULL }
 371 };
 372
 373
 374 /* Various pipe commands */
 375
 376 extern struct cmd_set lsarpc_commands[];
 377 extern struct cmd_set samr_commands[];
 378 extern struct cmd_set spoolss_commands[];
 379 extern struct cmd_set netlogon_commands[];
 380 extern struct cmd_set srvsvc_commands[];
 381 extern struct cmd_set dfs_commands[];
 382 extern struct cmd_set reg_commands[];
 383
 384 static struct cmd_set *rpcclient_command_list[] = {
 385         rpcclient_commands,
 386         lsarpc_commands,
 387         samr_commands,
 388         spoolss_commands,
 389         netlogon_commands,
 390         srvsvc_commands,
 391         dfs_commands,
 392         reg_commands,
 393         NULL
 394 };
 395
 396 static void add_command_set(struct cmd_set *cmd_set)
 397 {
 398         struct cmd_list *entry;
 399
 400         if (!(entry = (struct cmd_list *)malloc(sizeof(struct cmd_list)))) {
 401                 DEBUG(0, ("out of memory\n"));
 402                 return;
 403         }
 404
 405         ZERO_STRUCTP(entry);
 406
 407         entry->cmd_set = cmd_set;
 408         DLIST_ADD(cmd_list, entry);
 409 }
 410
 411 static NTSTATUS do_cmd(struct cli_state *cli, struct cmd_set *cmd_entry,
 412                        char *cmd)
 413 {
 414         char *p = cmd, **argv = NULL;
 415         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 416         pstring buf;
 417         int argc = 0, i;
 418
 419         /* Count number of arguments first time through the loop then
 420            allocate memory and strdup them. */
 421
 422  again:
 423         while(next_token(&p, buf, " ", sizeof(buf))) {
 424                 if (argv) {
 425                         argv[argc] = strdup(buf);
 426                 }
 427
 428                 argc++;
 429         }
 430
 431         if (!argv) {
 432
 433                 /* Create argument list */
 434
 435                 argv = (char **)malloc(sizeof(char *) * argc);
 436                 memset(argv, 0, sizeof(char *) * argc);
 437
 438                 if (!argv) {
 439                         fprintf(stderr, "out of memory\n");
 440                         result = NT_STATUS_NO_MEMORY;
 441                         goto done;
 442                 }
 443
 444                 p = cmd;
 445                 argc = 0;
 446
 447                 goto again;
 448         }
 449
 450         /* Call the function */
 451
 452         if (cmd_entry->fn) {
 453                 TALLOC_CTX *mem_ctx;
 454
 455                 /* Create mem_ctx */
 456
 457                 if (!(mem_ctx = talloc_init())) {
 458                         DEBUG(0, ("talloc_init() failed\n"));
 459                         goto done;
 460                 }
 461
 462                 /* Open pipe */
 463
 464                 if (cmd_entry->pipe)
 465                         if (!cli_nt_session_open(cli, cmd_entry->pipe)) {
 466                                 DEBUG(0, ("Could not initialise %s\n",
 467                                           cmd_entry->pipe));
 468                                 goto done;
 469                         }
 470
 471                 /* Run command */
 472
 473                 result = cmd_entry->fn(cli, mem_ctx, argc, argv);
 474
 475                 /* Cleanup */
 476
 477                 if (cmd_entry->pipe)
 478                         cli_nt_session_close(cli);
 479
 480                 talloc_destroy(mem_ctx);
 481
 482         } else {
 483                 fprintf (stderr, "Invalid command\n");
 484                 goto done;
 485         }
 486
 487  done:
 488
 489         /* Cleanup */
 490
 491         if (argv) {
 492                 for (i = 0; i < argc; i++)
 493                         SAFE_FREE(argv[i]);
 494
 495                 SAFE_FREE(argv);
 496         }
 497
 498         return result;
 499 }
 500
 501 /* Process a command entered at the prompt or as part of -c */
 502
 503 static NTSTATUS process_cmd(struct cli_state *cli, char *cmd)
 504 {
 505         struct cmd_list *temp_list;
 506         BOOL found = False;
 507         pstring buf;
 508         char *p = cmd;
 509         NTSTATUS result = NT_STATUS_OK;
 510         int len = 0;
 511
 512         if (cmd[strlen(cmd) - 1] == '\n')
 513                 cmd[strlen(cmd) - 1] = '\0';
 514
 515         if (!next_token(&p, buf, " ", sizeof(buf))) {
 516                 return NT_STATUS_OK;
 517         }
 518
 519         /* strip the trainly \n if it exsists */
 520         len = strlen(buf);
 521         if (buf[len-1] == '\n')
 522                 buf[len-1] = '\0';
 523
 524         /* Search for matching commands */
 525
 526         for (temp_list = cmd_list; temp_list; temp_list = temp_list->next) {
 527                 struct cmd_set *temp_set = temp_list->cmd_set;
 528
 529                 while(temp_set->name) {
 530                         if (strequal(buf, temp_set->name)) {
 531                                 found = True;
 532                                 result = do_cmd(cli, temp_set, cmd);
 533
 534                                 goto done;
 535                         }
 536                         temp_set++;
 537                 }
 538         }
 539
 540  done:
 541         if (!found && buf[0]) {
 542                 printf("command not found: %s\n", buf);
 543                 return NT_STATUS_OK;
 544         }
 545
 546         if (!NT_STATUS_IS_OK(result)) {
 547                 printf("result was %s\n", get_nt_error_msg(result));
 548         }
 549
 550         return result;
 551 }
 552
 553 /************************************************************************/
 554 struct cli_state *setup_connection(struct cli_state *cli, char *system_name,
 555                                    struct ntuser_creds *creds)
 556 {
 557         struct in_addr dest_ip;
 558         struct nmb_name calling, called;
 559         fstring dest_host;
 560         extern pstring global_myname;
 561         struct ntuser_creds anon;
 562
 563         /* Initialise cli_state information */
 564         if (!cli_initialise(cli)) {
 565                 return NULL;
 566         }
 567
 568         if (!creds) {
 569                 ZERO_STRUCT(anon);
 570                 anon.pwd.null_pwd = 1;
 571                 creds = &anon;
 572         }
 573
 574         cli_init_creds(cli, creds);
 575
 576         /* Establish a SMB connection */
 577         if (!resolve_srv_name(system_name, dest_host, &dest_ip)) {
 578                 return NULL;
 579         }
 580
 581         make_nmb_name(&called, dns_to_netbios_name(dest_host), 0x20);
 582         make_nmb_name(&calling, dns_to_netbios_name(global_myname), 0);
 583
 584         if (!cli_establish_connection(cli, dest_host, &dest_ip, &calling,
 585                                       &called, "IPC$", "IPC", False, True)) {
 586                 return NULL;
 587         }
 588
 589         return cli;
 590 }
 591
 592
 593 /* Print usage information */
 594 static void usage(void)
 595 {
 596         printf("Usage: rpcclient server [options]\n");
 597
 598         printf("\t-A authfile           file containing user credentials\n");
 599         printf("\t-c \"command string\"   execute semicolon separated cmds\n");
 600         printf("\t-d debuglevel         set the debuglevel\n");
 601         printf("\t-l logfile            name of logfile to use as opposed to stdout\n");
 602         printf("\t-h                    Print this help message.\n");
 603         printf("\t-N                    don't ask for a password\n");
 604         printf("\t-s configfile         specify an alternative config file\n");
 605         printf("\t-U username           set the network username\n");
 606         printf("\t-W domain             set the domain name for user account\n");
 607         printf("\n");
 608 }
 609
 610 /* Main function */
 611
 612  int main(int argc, char *argv[])
 613 {
 614         extern char             *optarg;
 615         extern int              optind;
 616         extern pstring          global_myname;
 617         BOOL                    got_pass = False;
 618         BOOL                    interactive = True;
 619         int                     opt;
 620         int                     olddebug;
 621         pstring                 cmdstr = "",
 622                                 servicesf = CONFIGFILE;
 623         struct ntuser_creds     creds;
 624         struct cli_state        cli;
 625         fstring                 password,
 626                                 username,
 627                                 domain,
 628                                 server;
 629         struct cmd_set **cmd_set;
 630
 631         setlinebuf(stdout);
 632
 633         DEBUGLEVEL = 1;
 634
 635         while ((opt = getopt(argc, argv, "A:s:Nd:U:W:c:l:h")) != EOF) {
 636                 switch (opt) {
 637                 case 'A':
 638                         /* only get the username, password, and domain from the file */
 639                         read_authfile (optarg, username, password, domain);
 640                         if (strlen (password))
 641                                 got_pass = True;
 642                         break;
 643
 644                 case 'c':
 645                         pstrcpy(cmdstr, optarg);
 646                         break;
 647
 648                 case 'd':
 649                         DEBUGLEVEL = atoi(optarg);
 650                         break;
 651
 652                 case 'l':
 653                         slprintf(debugf, sizeof(debugf) - 1, "%s.client", optarg);
 654                         interactive = False;
 655                         break;
 656
 657                 case 'N':
 658                         got_pass = True;
 659                         break;
 660
 661                 case 's':
 662                         pstrcpy(servicesf, optarg);
 663                         break;
 664
 665                 case 'U': {
 666                         char *lp;
 667                         pstrcpy(username,optarg);
 668                         if ((lp=strchr_m(username,'%'))) {
 669                                 *lp = 0;
 670                                 pstrcpy(password,lp+1);
 671                                 got_pass = True;
 672                                 memset(strchr_m(optarg,'%')+1,'X',strlen(password));
 673                         }
 674                         break;
 675                 }
 676
 677                 case 'W':
 678                         pstrcpy(domain, optarg);
 679                         break;
 680
 681                 case 'h':
 682                 default:
 683                         usage();
 684                         exit(1);
 685                 }
 686         }
 687
 688         argv += optind;
 689         argc -= optind;
 690
 691         /* Parse options */
 692         if (argc == 0) {
 693                 usage();
 694                 return 0;
 695         }
 696
 697         if (strncmp("//", argv[0], 2) == 0 || strncmp("\\\\", argv[0], 2) == 0)
 698                 argv[0] += 2;
 699
 700         pstrcpy(server, argv[0]);
 701
 702         /* the following functions are part of the Samba debugging
 703            facilities.  See lib/debug.c */
 704         setup_logging("rpcclient", interactive);
 705         if (!interactive)
 706                 reopen_logs();
 707
 708         /* Load smb.conf file */
 709         /* FIXME!  How to get this DEBUGLEVEL to last over lp_load()? */
 710         olddebug = DEBUGLEVEL;
 711         if (!lp_load(servicesf,True,False,False)) {
 712                 fprintf(stderr, "Can't load %s\n", servicesf);
 713         }
 714         DEBUGLEVEL = olddebug;
 715
 716         load_interfaces();
 717
 718         TimeInit();
 719
 720         get_myname((*global_myname)?NULL:global_myname);
 721         strupper(global_myname);
 722
 723         /*
 724          * initialize the credentials struct.  Get password
 725          * from stdin if necessary
 726          */
 727         if (!strlen(username) && !got_pass)
 728                 get_username(username);
 729
 730         if (!got_pass) {
 731                 init_rpcclient_creds (&creds, username, domain, "");
 732                 pwd_read(&creds.pwd, "Enter Password: ", lp_encrypted_passwords());
 733         }
 734         else {
 735                 init_rpcclient_creds (&creds, username, domain, password);
 736         }
 737         memset(password,'X',sizeof(password));
 738
 739         /* open a connection to the specified server */
 740         ZERO_STRUCTP (&cli);
 741         if (!setup_connection (&cli, server, &creds)) {
 742                 return 1;
 743         }
 744
 745         /* There are no pointers in ntuser_creds struct so zero it out */
 746
 747         ZERO_STRUCTP (&creds);
 748
 749         /* Load command lists */
 750
 751         cmd_set = rpcclient_command_list;
 752
 753         while(*cmd_set) {
 754                 add_command_set(*cmd_set);
 755                 add_command_set(separator_command);
 756                 cmd_set++;
 757         }
 758
 759         fetch_machine_sid(&cli);
 760
 761        /* Do anything specified with -c */
 762         if (cmdstr[0]) {
 763                 char    *cmd;
 764                 char    *p = cmdstr;
 765
 766                 while((cmd=next_command(&p)) != NULL) {
 767                         process_cmd(&cli, cmd);
 768                 }
 769
 770                 return 0;
 771         }
 772
 773         /* Loop around accepting commands */
 774
 775         while(1) {
 776                 pstring prompt;
 777                 char *line;
 778
 779                 slprintf(prompt, sizeof(prompt) - 1, "rpcclient $> ");
 780
 781                 line = smb_readline(prompt, NULL, completion_fn);
 782
 783                 if (line == NULL)
 784                         break;
 785
 786                 if (line[0] != '\n')
 787                         process_cmd(&cli, line);
 788         }
 789
 790         return 0;
 791 }