source3/torture/vfstest.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    VFS module tester
   4
   5    Copyright (C) Simo Sorce 2002
   6    Copyright (C) Eric Lorimer 2002
   7    Copyright (C) Jelmer Vernooij 2002,2003
   8
   9    Most of this code was ripped off of rpcclient.
  10    Copyright (C) Tim Potter 2000-2001
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #include "includes.h"
  27 #include "locking/share_mode_lock.h"
  28 #include "smbd/smbd.h"
  29 #include "smbd/globals.h"
  30 #include "lib/cmdline/cmdline.h"
  31 #include "vfstest.h"
  32 #include "../libcli/smbreadline/smbreadline.h"
  33 #include "auth.h"
  34 #include "serverid.h"
  35 #include "messages.h"
  36 #include "libcli/security/security.h"
  37 #include "lib/smbd_shim.h"
  38 #include "system/filesys.h"
  39 #include "lib/global_contexts.h"
  40
  41 /* List to hold groups of commands */
  42 static struct cmd_list {
  43         struct cmd_list *prev, *next;
  44         struct cmd_set *cmd_set;
  45 } *cmd_list;
  46
  47 /* shall we do talloc_report after each command? */
  48 static int memreports = 0;
  49
  50 /****************************************************************************
  51 handle completion of commands for readline
  52 ****************************************************************************/
  53 static char **completion_fn(const char *text, int start, int end)
  54 {
  55 #define MAX_COMPLETIONS 100
  56         char **matches;
  57         int i, count=0;
  58         struct cmd_list *commands = cmd_list;
  59
  60         if (start)
  61                 return NULL;
  62
  63         /* make sure we have a list of valid commands */
  64         if (!commands)
  65                 return NULL;
  66
  67         matches = SMB_MALLOC_ARRAY(char *, MAX_COMPLETIONS);
  68         if (!matches) return NULL;
  69
  70         matches[count++] = SMB_STRDUP(text);
  71         if (!matches[0]) return NULL;
  72
  73         while (commands && count < MAX_COMPLETIONS-1)
  74         {
  75                 if (!commands->cmd_set)
  76                         break;
  77
  78                 for (i=0; commands->cmd_set[i].name; i++)
  79                 {
  80                         if ((strncmp(text, commands->cmd_set[i].name, strlen(text)) == 0) &&
  81                                 commands->cmd_set[i].fn)
  82                         {
  83                                 matches[count] = SMB_STRDUP(commands->cmd_set[i].name);
  84                                 if (!matches[count])
  85                                         return NULL;
  86                                 count++;
  87                         }
  88                 }
  89
  90                 commands = commands->next;
  91         }
  92
  93         if (count == 2) {
  94                 SAFE_FREE(matches[0]);
  95                 matches[0] = SMB_STRDUP(matches[1]);
  96         }
  97         matches[count] = NULL;
  98         return matches;
  99 }
 100
 101 static char *next_command(TALLOC_CTX *ctx, char **cmdstr)
 102 {
 103         char *command;
 104         char *p;
 105
 106         if (!cmdstr || !(*cmdstr))
 107                 return NULL;
 108
 109         p = strchr_m(*cmdstr, ';');
 110         if (p)
 111                 *p = '\0';
 112         command = talloc_strdup(ctx, *cmdstr);
 113
 114         /* Pass back the remaining cmdstring
 115            (a trailing delimiter ";" does also work),
 116            or NULL at last cmdstring.
 117         */
 118         *cmdstr = p ? p + 1 : p;
 119
 120         return command;
 121 }
 122
 123 /* Load specified configuration file */
 124 static NTSTATUS cmd_conf(struct vfs_state *vfs, TALLOC_CTX *mem_ctx,
 125                         int argc, const char **argv)
 126 {
 127         if (argc != 2) {
 128                 printf("Usage: %s <smb.conf>\n", argv[0]);
 129                 return NT_STATUS_OK;
 130         }
 131
 132         if (!lp_load_with_shares(argv[1])) {
 133                 printf("Error loading \"%s\"\n", argv[1]);
 134                 return NT_STATUS_OK;
 135         }
 136
 137         printf("\"%s\" successfully loaded\n", argv[1]);
 138         return NT_STATUS_OK;
 139 }
 140
 141 /* Display help on commands */
 142 static NTSTATUS cmd_help(struct vfs_state *vfs, TALLOC_CTX *mem_ctx,
 143                          int argc, const char **argv)
 144 {
 145         struct cmd_list *tmp;
 146         struct cmd_set *tmp_set;
 147
 148         /* Usage */
 149         if (argc > 2) {
 150                 printf("Usage: %s [command]\n", argv[0]);
 151                 return NT_STATUS_OK;
 152         }
 153
 154         /* Help on one command */
 155
 156         if (argc == 2) {
 157                 for (tmp = cmd_list; tmp; tmp = tmp->next) {
 158
 159                         tmp_set = tmp->cmd_set;
 160
 161                         while(tmp_set->name) {
 162                                 if (strequal(argv[1], tmp_set->name)) {
 163                                         if (tmp_set->usage &&
 164                                             tmp_set->usage[0])
 165                                                 printf("%s\n", tmp_set->usage);
 166                                         else
 167                                                 printf("No help for %s\n", tmp_set->name);
 168
 169                                         return NT_STATUS_OK;
 170                                 }
 171
 172                                 tmp_set++;
 173                         }
 174                 }
 175
 176                 printf("No such command: %s\n", argv[1]);
 177                 return NT_STATUS_OK;
 178         }
 179
 180         /* List all commands */
 181
 182         for (tmp = cmd_list; tmp; tmp = tmp->next) {
 183
 184                 tmp_set = tmp->cmd_set;
 185
 186                 while(tmp_set->name) {
 187
 188                         printf("%15s\t\t%s\n", tmp_set->name,
 189                                tmp_set->description ? tmp_set->description:
 190                                "");
 191
 192                         tmp_set++;
 193                 }
 194         }
 195
 196         return NT_STATUS_OK;
 197 }
 198
 199 /* Change the debug level */
 200 static NTSTATUS cmd_debuglevel(struct vfs_state *vfs, TALLOC_CTX *mem_ctx, int argc, const char **argv)
 201 {
 202         if (argc > 2) {
 203                 printf("Usage: %s [debuglevel]\n", argv[0]);
 204                 return NT_STATUS_OK;
 205         }
 206
 207         if (argc == 2) {
 208                 lp_set_cmdline("log level", argv[1]);
 209         }
 210
 211         printf("debuglevel is %d\n", DEBUGLEVEL);
 212
 213         return NT_STATUS_OK;
 214 }
 215
 216 static NTSTATUS cmd_freemem(struct vfs_state *vfs, TALLOC_CTX *mem_ctx, int argc, const char **argv)
 217 {
 218         /* Cleanup */
 219         talloc_destroy(mem_ctx);
 220         mem_ctx = NULL;
 221         vfs->data = NULL;
 222         vfs->data_size = 0;
 223         return NT_STATUS_OK;
 224 }
 225
 226 static NTSTATUS cmd_quit(struct vfs_state *vfs, TALLOC_CTX *mem_ctx, int argc, const char **argv)
 227 {
 228         /* Cleanup */
 229         talloc_destroy(mem_ctx);
 230
 231         exit(0);
 232         return NT_STATUS_OK; /* NOTREACHED */
 233 }
 234
 235 static struct cmd_set vfstest_commands[] = {
 236
 237         { .name = "GENERAL OPTIONS" },
 238
 239         { "conf",       cmd_conf,       "Load smb configuration file", "conf <smb.conf>" },
 240         { "help",       cmd_help,       "Get help on commands", "" },
 241         { "?",          cmd_help,       "Get help on commands", "" },
 242         { "debuglevel", cmd_debuglevel, "Set debug level", "" },
 243         { "freemem",    cmd_freemem,    "Free currently allocated buffers", "" },
 244         { "exit",       cmd_quit,       "Exit program", "" },
 245         { "quit",       cmd_quit,       "Exit program", "" },
 246
 247         { .name = NULL }
 248 };
 249
 250 static struct cmd_set separator_command[] = {
 251         {
 252                 .name        = "---------------",
 253                 .description = "----------------------"
 254         },
 255         {
 256                 .name = NULL,
 257         },
 258 };
 259
 260
 261 extern struct cmd_set vfs_commands[];
 262 static struct cmd_set *vfstest_command_list[] = {
 263         vfstest_commands,
 264         vfs_commands,
 265         NULL
 266 };
 267
 268 static void add_command_set(struct cmd_set *cmd_set)
 269 {
 270         struct cmd_list *entry;
 271
 272         if (!(entry = SMB_MALLOC_P(struct cmd_list))) {
 273                 DEBUG(0, ("out of memory\n"));
 274                 return;
 275         }
 276
 277         ZERO_STRUCTP(entry);
 278
 279         entry->cmd_set = cmd_set;
 280         DLIST_ADD(cmd_list, entry);
 281 }
 282
 283 static NTSTATUS do_cmd(struct vfs_state *vfs, struct cmd_set *cmd_entry, char *cmd)
 284 {
 285         const char *p = cmd;
 286         const char **argv = NULL;
 287         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 288         char *buf;
 289         TALLOC_CTX *mem_ctx = talloc_stackframe();
 290         int argc = 0;
 291
 292         /* Count number of arguments first time through the loop then
 293            allocate memory and strdup them. */
 294
 295  again:
 296         while(next_token_talloc(mem_ctx, &p, &buf, " ")) {
 297                 if (argv) {
 298                         argv[argc] = talloc_strdup(argv, buf);
 299                 }
 300                 argc++;
 301         }
 302
 303         if (!argv) {
 304                 /* Create argument list */
 305
 306                 argv = talloc_zero_array(mem_ctx, const char *, argc);
 307                 if (argv == NULL) {
 308                         fprintf(stderr, "out of memory\n");
 309                         result = NT_STATUS_NO_MEMORY;
 310                         goto done;
 311                 }
 312
 313                 p = cmd;
 314                 argc = 0;
 315
 316                 goto again;
 317         }
 318
 319         /* Call the function */
 320
 321         if (cmd_entry->fn) {
 322                 /* Run command */
 323                 result = cmd_entry->fn(vfs, mem_ctx, argc, (const char **)argv);
 324         } else {
 325                 fprintf (stderr, "Invalid command\n");
 326                 goto done;
 327         }
 328
 329  done:
 330
 331         /* Cleanup */
 332
 333         if (argv) {
 334                 char **_argv = discard_const_p(char *, argv);
 335                 TALLOC_FREE(_argv);
 336                 argv = NULL;
 337         }
 338
 339         if (memreports != 0) {
 340                 talloc_report_full(mem_ctx, stdout);
 341         }
 342         TALLOC_FREE(mem_ctx);
 343         return result;
 344 }
 345
 346 /* Process a command entered at the prompt or as part of -c */
 347 static NTSTATUS process_cmd(struct vfs_state *vfs, char *cmd)
 348 {
 349         struct cmd_list *temp_list;
 350         bool found = False;
 351         char *buf;
 352         const char *p = cmd;
 353         NTSTATUS result = NT_STATUS_OK;
 354         TALLOC_CTX *mem_ctx = talloc_stackframe();
 355         int len = 0;
 356
 357         if (cmd[strlen(cmd) - 1] == '\n')
 358                 cmd[strlen(cmd) - 1] = '\0';
 359
 360         if (!next_token_talloc(mem_ctx, &p, &buf, " ")) {
 361                 TALLOC_FREE(mem_ctx);
 362                 return NT_STATUS_OK;
 363         }
 364
 365         /* Strip the trailing \n if it exists */
 366         len = strlen(buf);
 367         if (buf[len-1] == '\n')
 368                 buf[len-1] = '\0';
 369
 370         /* Search for matching commands */
 371
 372         for (temp_list = cmd_list; temp_list; temp_list = temp_list->next) {
 373                 struct cmd_set *temp_set = temp_list->cmd_set;
 374
 375                 while(temp_set->name) {
 376                         if (strequal(buf, temp_set->name)) {
 377                                 found = True;
 378                                 result = do_cmd(vfs, temp_set, cmd);
 379
 380                                 goto done;
 381                         }
 382                         temp_set++;
 383                 }
 384         }
 385
 386  done:
 387         if (!found && buf[0]) {
 388                 printf("command not found: %s\n", buf);
 389                 TALLOC_FREE(mem_ctx);
 390                 return NT_STATUS_OK;
 391         }
 392
 393         if (!NT_STATUS_IS_OK(result)) {
 394                 printf("result was %s\n", nt_errstr(result));
 395         }
 396
 397         TALLOC_FREE(mem_ctx);
 398         return result;
 399 }
 400
 401 static void process_file(struct vfs_state *pvfs, char *filename) {
 402         FILE *file;
 403         char command[3 * PATH_MAX];
 404
 405         if (*filename == '-') {
 406                 file = stdin;
 407         } else {
 408                 file = fopen(filename, "r");
 409                 if (file == NULL) {
 410                         printf("vfstest: error reading file (%s)!", filename);
 411                         printf("errno n.%d: %s", errno, strerror(errno));
 412                         exit(-1);
 413                 }
 414         }
 415
 416         while (fgets(command, 3 * PATH_MAX, file) != NULL) {
 417                 process_cmd(pvfs, command);
 418         }
 419
 420         if (file != stdin) {
 421                 fclose(file);
 422         }
 423 }
 424
 425 static void vfstest_exit_server(const char * const reason) _NORETURN_;
 426 static void vfstest_exit_server(const char * const reason)
 427 {
 428         DEBUG(3,("Server exit (%s)\n", (reason ? reason : "")));
 429         exit(0);
 430 }
 431
 432 static void vfstest_exit_server_cleanly(const char * const reason) _NORETURN_;
 433 static void vfstest_exit_server_cleanly(const char * const reason)
 434 {
 435         vfstest_exit_server("normal exit");
 436 }
 437
 438 struct smb_request *vfstest_get_smbreq(TALLOC_CTX *mem_ctx,
 439                                        struct vfs_state *vfs)
 440 {
 441         struct smb_request *result;
 442         uint8_t *inbuf;
 443
 444         result = talloc_zero(mem_ctx, struct smb_request);
 445         if (result == NULL) {
 446                 return NULL;
 447         }
 448         result->sconn = vfs->conn->sconn;
 449         result->mid = ++vfs->mid;
 450
 451         inbuf = talloc_array(result, uint8_t, smb_size);
 452         if (inbuf == NULL) {
 453                 goto fail;
 454         }
 455         SSVAL(inbuf, smb_mid, result->mid);
 456         smb_setlen(inbuf, smb_size-4);
 457         result->inbuf = inbuf;
 458         return result;
 459 fail:
 460         TALLOC_FREE(result);
 461         return NULL;
 462 }
 463
 464 /* Main function */
 465
 466 int main(int argc, const char *argv[])
 467 {
 468         char *cmdstr = NULL;
 469         struct cmd_set  **cmd_set;
 470         struct conn_struct_tos *c = NULL;
 471         struct vfs_state *vfs;
 472         int opt;
 473         int i;
 474         char *filename = NULL;
 475         char *cwd = NULL;
 476         TALLOC_CTX *frame = talloc_stackframe();
 477         struct auth_session_info *session_info = NULL;
 478         NTSTATUS status = NT_STATUS_OK;
 479         bool ok;
 480
 481         /* make sure the vars that get altered (4th field) are in
 482            a fixed location or certain compilers complain */
 483         poptContext pc;
 484         struct poptOption long_options[] = {
 485                 POPT_AUTOHELP
 486                 {
 487                         .longName   = "file",
 488                         .shortName  = 'f',
 489                         .argInfo    = POPT_ARG_STRING,
 490                         .arg        = &filename,
 491                 },
 492                 {
 493                         .longName   = "command",
 494                         .shortName  = 'c',
 495                         .argInfo    = POPT_ARG_STRING,
 496                         .arg        = &cmdstr,
 497                         .val        = 0,
 498                         .descrip    = "Execute specified list of commands",
 499                 },
 500                 {
 501                         .longName   = "memreport",
 502                         .shortName  = 'm',
 503                         .argInfo    = POPT_ARG_INT,
 504                         .arg        = &memreports,
 505                         .descrip    = "Report memory left on talloc stackframe after each command",
 506                 },
 507                 POPT_COMMON_SAMBA
 508                 POPT_COMMON_VERSION
 509                 POPT_TABLEEND
 510         };
 511         static const struct smbd_shim vfstest_shim_fns =
 512         {
 513                 .exit_server = vfstest_exit_server,
 514                 .exit_server_cleanly = vfstest_exit_server_cleanly,
 515         };
 516
 517         smb_init_locale();
 518
 519         setlinebuf(stdout);
 520
 521         ok = samba_cmdline_init(frame,
 522                                 SAMBA_CMDLINE_CONFIG_SERVER,
 523                                 true /* require_smbconf */);
 524         if (!ok) {
 525                 TALLOC_FREE(frame);
 526                 exit(1);
 527         }
 528
 529         pc = samba_popt_get_context("vfstest", argc, argv, long_options, 0);
 530         if (pc == NULL) {
 531                 TALLOC_FREE(frame);
 532                 exit(1);
 533         }
 534
 535         while ((opt = poptGetNextOpt(pc)) != -1) {
 536                 switch (opt) {
 537                 case POPT_ERROR_BADOPT:
 538                         fprintf(stderr, "\nInvalid option %s: %s\n\n",
 539                                 poptBadOption(pc, 0), poptStrerror(opt));
 540                         poptPrintUsage(pc, stderr, 0);
 541                         exit(1);
 542                 }
 543         }
 544
 545         poptFreeContext(pc);
 546
 547         /* we want total control over the permissions on created files,
 548            so set our umask to 0 */
 549         umask(0);
 550
 551         /* TODO: check output */
 552         reload_services(NULL, NULL, false);
 553
 554         per_thread_cwd_check();
 555
 556         set_smbd_shim(&vfstest_shim_fns);
 557
 558         /* Load command lists */
 559
 560         cmd_set = vfstest_command_list;
 561
 562         while(*cmd_set) {
 563                 add_command_set(*cmd_set);
 564                 add_command_set(separator_command);
 565                 cmd_set++;
 566         }
 567
 568         /* some basic initialization stuff */
 569         sec_init();
 570         init_guest_session_info(frame);
 571         locking_init();
 572         vfs = talloc_zero(frame, struct vfs_state);
 573         if (vfs == NULL) {
 574                 return 1;
 575         }
 576         status = make_session_info_guest(vfs, &session_info);
 577         if (!NT_STATUS_IS_OK(status)) {
 578                 return 1;
 579         }
 580
 581         /* Provided by libreplace if not present. Always mallocs. */
 582         cwd = get_current_dir_name();
 583         if (cwd == NULL) {
 584                 return -1;
 585         }
 586
 587         status = create_conn_struct_tos_cwd(global_messaging_context(),
 588                                         -1,
 589                                         cwd,
 590                                         session_info,
 591                                         &c);
 592         SAFE_FREE(cwd);
 593         if (!NT_STATUS_IS_OK(status)) {
 594                 return 1;
 595         }
 596         vfs->conn = c->conn;
 597
 598         vfs->conn->share_access = FILE_GENERIC_ALL;
 599         vfs->conn->read_only = false;
 600
 601         file_init(vfs->conn->sconn);
 602         for (i=0; i < 1024; i++)
 603                 vfs->files[i] = NULL;
 604
 605         if (!posix_locking_init(false)) {
 606                 return 1;
 607         }
 608
 609         /* Do we have a file input? */
 610         if (filename && filename[0]) {
 611                 process_file(vfs, filename);
 612                 return 0;
 613         }
 614
 615         /* Do anything specified with -c */
 616         if (cmdstr && cmdstr[0]) {
 617                 char    *cmd;
 618                 char    *p = cmdstr;
 619
 620                 while((cmd=next_command(frame, &p)) != NULL) {
 621                         status = process_cmd(vfs, cmd);
 622                 }
 623
 624                 TALLOC_FREE(cmd);
 625                 return NT_STATUS_IS_OK(status) ? 0 : 1;
 626         }
 627
 628         /* Loop around accepting commands */
 629
 630         while(1) {
 631                 char *line = NULL;
 632
 633                 line = smb_readline("vfstest $> ", NULL, completion_fn);
 634
 635                 if (line == NULL) {
 636                         break;
 637                 }
 638
 639                 if (line[0] != '\n') {
 640                         status = process_cmd(vfs, line);
 641                 }
 642                 SAFE_FREE(line);
 643         }
 644
 645         TALLOC_FREE(vfs);
 646         TALLOC_FREE(frame);
 647         return NT_STATUS_IS_OK(status) ? 0 : 1;
 648 }