source3/utils/testparm.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Test validity of smb.conf
   4    Copyright (C) Karl Auer 1993, 1994-1998
   5
   6    Extensively modified by Andrew Tridgell, 1995
   7    Converted to popt by Jelmer Vernooij (jelmer@nl.linux.org), 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /*
  24  * Testbed for loadparm.c/params.c
  25  *
  26  * This module simply loads a specified configuration file and
  27  * if successful, dumps it's contents to stdout. Note that the
  28  * operation is performed with DEBUGLEVEL at 3.
  29  *
  30  * Useful for a quick 'syntax check' of a configuration file.
  31  *
  32  */
  33
  34 #include "includes.h"
  35 #include "system/filesys.h"
  36 #include "popt_common.h"
  37 #include "lib/param/loadparm.h"
  38
  39 /*******************************************************************
  40  Check if a directory exists.
  41 ********************************************************************/
  42
  43 static bool directory_exist_stat(const char *dname,SMB_STRUCT_STAT *st)
  44 {
  45         SMB_STRUCT_STAT st2;
  46         bool ret;
  47
  48         if (!st)
  49                 st = &st2;
  50
  51         if (sys_stat(dname, st, false) != 0)
  52                 return(False);
  53
  54         ret = S_ISDIR(st->st_ex_mode);
  55         if(!ret)
  56                 errno = ENOTDIR;
  57         return ret;
  58 }
  59
  60 /***********************************************
  61  Here we do a set of 'hard coded' checks for bad
  62  configuration settings.
  63 ************************************************/
  64
  65 static int do_global_checks(void)
  66 {
  67         int ret = 0;
  68         SMB_STRUCT_STAT st;
  69
  70         if (lp_security() >= SEC_DOMAIN && !lp_encrypted_passwords()) {
  71                 fprintf(stderr, "ERROR: in 'security=domain' mode the 'encrypt passwords' parameter must always be set to 'true'.\n");
  72                 ret = 1;
  73         }
  74
  75         if (lp_we_are_a_wins_server() && lp_wins_server_list()) {
  76                 fprintf(stderr, "ERROR: both 'wins support = true' and 'wins server = <server list>' \
  77 cannot be set in the smb.conf file. nmbd will abort with this setting.\n");
  78                 ret = 1;
  79         }
  80
  81         if (strequal(lp_workgroup(), lp_netbios_name())) {
  82                 fprintf(stderr, "WARNING: 'workgroup' and 'netbios name' " \
  83                         "must differ.\n");
  84                 ret = 1;
  85         }
  86
  87         if (!directory_exist_stat(lp_lockdir(), &st)) {
  88                 fprintf(stderr, "ERROR: lock directory %s does not exist\n",
  89                        lp_lockdir());
  90                 ret = 1;
  91         } else if ((st.st_ex_mode & 0777) != 0755) {
  92                 fprintf(stderr, "WARNING: lock directory %s should have permissions 0755 for browsing to work\n",
  93                        lp_lockdir());
  94                 ret = 1;
  95         }
  96
  97         if (!directory_exist_stat(lp_statedir(), &st)) {
  98                 fprintf(stderr, "ERROR: state directory %s does not exist\n",
  99                        lp_statedir());
 100                 ret = 1;
 101         } else if ((st.st_ex_mode & 0777) != 0755) {
 102                 fprintf(stderr, "WARNING: state directory %s should have permissions 0755 for browsing to work\n",
 103                        lp_statedir());
 104                 ret = 1;
 105         }
 106
 107         if (!directory_exist_stat(lp_cachedir(), &st)) {
 108                 fprintf(stderr, "ERROR: cache directory %s does not exist\n",
 109                        lp_cachedir());
 110                 ret = 1;
 111         } else if ((st.st_ex_mode & 0777) != 0755) {
 112                 fprintf(stderr, "WARNING: cache directory %s should have permissions 0755 for browsing to work\n",
 113                        lp_cachedir());
 114                 ret = 1;
 115         }
 116
 117         if (!directory_exist_stat(lp_piddir(), &st)) {
 118                 fprintf(stderr, "ERROR: pid directory %s does not exist\n",
 119                        lp_piddir());
 120                 ret = 1;
 121         }
 122
 123         if (lp_passdb_expand_explicit()) {
 124                 fprintf(stderr, "WARNING: passdb expand explicit = yes is "
 125                         "deprecated\n");
 126         }
 127
 128         /*
 129          * Password server sanity checks.
 130          */
 131
 132         if((lp_security() >= SEC_DOMAIN) && !*lp_passwordserver()) {
 133                 const char *sec_setting;
 134                 if(lp_security() == SEC_DOMAIN)
 135                         sec_setting = "domain";
 136                 else if(lp_security() == SEC_ADS)
 137                         sec_setting = "ads";
 138                 else
 139                         sec_setting = "";
 140
 141                 fprintf(stderr, "ERROR: The setting 'security=%s' requires the 'password server' parameter be set\n"
 142                         "to the default value * or a valid password server.\n", sec_setting );
 143                 ret = 1;
 144         }
 145
 146         if((lp_security() >= SEC_DOMAIN) && (strcmp(lp_passwordserver(), "*") != 0)) {
 147                 const char *sec_setting;
 148                 if(lp_security() == SEC_DOMAIN)
 149                         sec_setting = "domain";
 150                 else if(lp_security() == SEC_ADS)
 151                         sec_setting = "ads";
 152                 else
 153                         sec_setting = "";
 154
 155                 fprintf(stderr, "WARNING: The setting 'security=%s' should NOT be combined with the 'password server' parameter.\n"
 156                         "(by default Samba will discover the correct DC to contact automatically).\n", sec_setting );
 157         }
 158
 159         /*
 160          * Password chat sanity checks.
 161          */
 162
 163         if(lp_security() == SEC_USER && lp_unix_password_sync()) {
 164
 165                 /*
 166                  * Check that we have a valid lp_passwd_program() if not using pam.
 167                  */
 168
 169 #ifdef WITH_PAM
 170                 if (!lp_pam_password_change()) {
 171 #endif
 172
 173                         if((lp_passwd_program(talloc_tos()) == NULL) ||
 174                            (strlen(lp_passwd_program(talloc_tos())) == 0))
 175                         {
 176                                 fprintf( stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd program' \
 177 parameter.\n" );
 178                                 ret = 1;
 179                         } else {
 180                                 const char *passwd_prog;
 181                                 char *truncated_prog = NULL;
 182                                 const char *p;
 183
 184                                 passwd_prog = lp_passwd_program(talloc_tos());
 185                                 p = passwd_prog;
 186                                 next_token_talloc(talloc_tos(),
 187                                                 &p,
 188                                                 &truncated_prog, NULL);
 189                                 if (truncated_prog && access(truncated_prog, F_OK) == -1) {
 190                                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and the 'passwd program' (%s) \
 191 cannot be executed (error was %s).\n", truncated_prog, strerror(errno) );
 192                                         ret = 1;
 193                                 }
 194                         }
 195
 196 #ifdef WITH_PAM
 197                 }
 198 #endif
 199
 200                 if(lp_passwd_chat(talloc_tos()) == NULL) {
 201                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd chat' \
 202 parameter.\n");
 203                         ret = 1;
 204                 }
 205
 206                 if ((lp_passwd_program(talloc_tos()) != NULL) &&
 207                     (strlen(lp_passwd_program(talloc_tos())) > 0))
 208                 {
 209                         /* check if there's a %u parameter present */
 210                         if(strstr_m(lp_passwd_program(talloc_tos()), "%u") == NULL) {
 211                                 fprintf(stderr, "ERROR: the 'passwd program' (%s) requires a '%%u' parameter.\n", lp_passwd_program(talloc_tos()));
 212                                 ret = 1;
 213                         }
 214                 }
 215
 216                 /*
 217                  * Check that we have a valid script and that it hasn't
 218                  * been written to expect the old password.
 219                  */
 220
 221                 if(lp_encrypted_passwords()) {
 222                         if(strstr_m( lp_passwd_chat(talloc_tos()), "%o")!=NULL) {
 223                                 fprintf(stderr, "ERROR: the 'passwd chat' script [%s] expects to use the old plaintext password \
 224 via the %%o substitution. With encrypted passwords this is not possible.\n", lp_passwd_chat(talloc_tos()) );
 225                                 ret = 1;
 226                         }
 227                 }
 228         }
 229
 230         if (strlen(lp_winbind_separator()) != 1) {
 231                 fprintf(stderr,"ERROR: the 'winbind separator' parameter must be a single character.\n");
 232                 ret = 1;
 233         }
 234
 235         if (*lp_winbind_separator() == '+') {
 236                 fprintf(stderr,"'winbind separator = +' might cause problems with group membership.\n");
 237         }
 238
 239         if (lp_algorithmic_rid_base() < BASE_RID) {
 240                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 241                    rids below 1000, that's the 'well known RIDs' on NT */
 242                 fprintf(stderr,"'algorithmic rid base' must be equal to or above %lu\n", BASE_RID);
 243         }
 244
 245         if (lp_algorithmic_rid_base() & 1) {
 246                 fprintf(stderr,"'algorithmic rid base' must be even.\n");
 247         }
 248
 249 #ifndef HAVE_DLOPEN
 250         if (lp_preload_modules()) {
 251                 fprintf(stderr,"WARNING: 'preload modules = ' set while loading plugins not supported.\n");
 252         }
 253 #endif
 254
 255         if (!lp_passdb_backend()) {
 256                 fprintf(stderr,"ERROR: passdb backend must have a value or be left out\n");
 257         }
 258
 259         if (lp_os_level() > 255) {
 260                 fprintf(stderr,"WARNING: Maximum value for 'os level' is 255!\n");
 261         }
 262
 263         if (strequal(lp_dos_charset(), "UTF8") || strequal(lp_dos_charset(), "UTF-8")) {
 264                 fprintf(stderr, "ERROR: 'dos charset' must not be UTF8\n");
 265                 ret = 1;
 266         }
 267
 268         return ret;
 269 }
 270
 271 /**
 272  * per-share logic tests
 273  */
 274 static void do_per_share_checks(int s)
 275 {
 276         const char **deny_list = lp_hostsdeny(s);
 277         const char **allow_list = lp_hostsallow(s);
 278         int i;
 279
 280         if(deny_list) {
 281                 for (i=0; deny_list[i]; i++) {
 282                         char *hasstar = strchr_m(deny_list[i], '*');
 283                         char *hasquery = strchr_m(deny_list[i], '?');
 284                         if(hasstar || hasquery) {
 285                                 fprintf(stderr,"Invalid character %c in hosts deny list (%s) for service %s.\n",
 286                                         hasstar ? *hasstar : *hasquery, deny_list[i], lp_servicename(talloc_tos(), s) );
 287                         }
 288                 }
 289         }
 290
 291         if(allow_list) {
 292                 for (i=0; allow_list[i]; i++) {
 293                         char *hasstar = strchr_m(allow_list[i], '*');
 294                         char *hasquery = strchr_m(allow_list[i], '?');
 295                         if(hasstar || hasquery) {
 296                                 fprintf(stderr,"Invalid character %c in hosts allow list (%s) for service %s.\n",
 297                                         hasstar ? *hasstar : *hasquery, allow_list[i], lp_servicename(talloc_tos(), s) );
 298                         }
 299                 }
 300         }
 301
 302         if(lp_level2_oplocks(s) && !lp_oplocks(s)) {
 303                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 304                            Level II oplocks can only be set if oplocks are also set.\n",
 305                         lp_servicename(talloc_tos(), s) );
 306         }
 307
 308         if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
 309             && !(lp_create_mask(s) & S_IXOTH))
 310         {
 311                 fprintf(stderr,"Invalid combination of parameters for service "
 312                         "%s. Map hidden can only work if create mask includes "
 313                         "octal 01 (S_IXOTH).\n", lp_servicename(talloc_tos(), s));
 314         }
 315         if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
 316             && (lp_force_create_mode(s) & S_IXOTH))
 317         {
 318                 fprintf(stderr,"Invalid combination of parameters for service "
 319                         "%s. Map hidden can only work if force create mode "
 320                         "excludes octal 01 (S_IXOTH).\n", lp_servicename(talloc_tos(), s));
 321         }
 322         if (!lp_store_dos_attributes(s) && lp_map_system(s)
 323             && !(lp_create_mask(s) & S_IXGRP))
 324         {
 325                 fprintf(stderr,"Invalid combination of parameters for service "
 326                         "%s. Map system can only work if create mask includes "
 327                         "octal 010 (S_IXGRP).\n", lp_servicename(talloc_tos(), s));
 328         }
 329         if (!lp_store_dos_attributes(s) && lp_map_system(s)
 330             && (lp_force_create_mode(s) & S_IXGRP))
 331         {
 332                 fprintf(stderr,"Invalid combination of parameters for service "
 333                         "%s. Map system can only work if force create mode "
 334                         "excludes octal 010 (S_IXGRP).\n", lp_servicename(talloc_tos(), s));
 335         }
 336         if (lp_printing(s) == PRINT_CUPS && *(lp_printcommand(talloc_tos(), s)) != '\0') {
 337                  fprintf(stderr,"Warning: Service %s defines a print command, but \
 338 rameter is ignored when using CUPS libraries.\n",
 339                            lp_servicename(talloc_tos(), s) );
 340         }
 341 }
 342
 343  int main(int argc, const char *argv[])
 344 {
 345         const char *config_file = get_dyn_CONFIGFILE();
 346         int s;
 347         static int silent_mode = False;
 348         static int show_all_parameters = False;
 349         int ret = 0;
 350         poptContext pc;
 351         static char *parameter_name = NULL;
 352         static const char *section_name = NULL;
 353         const char *cname;
 354         const char *caddr;
 355         static int show_defaults;
 356         static int skip_logic_checks = 0;
 357
 358         struct poptOption long_options[] = {
 359                 POPT_AUTOHELP
 360                 {"suppress-prompt", 's', POPT_ARG_VAL, &silent_mode, 1, "Suppress prompt for enter"},
 361                 {"verbose", 'v', POPT_ARG_NONE, &show_defaults, 1, "Show default options too"},
 362                 {"skip-logic-checks", 'l', POPT_ARG_NONE, &skip_logic_checks, 1, "Skip the global checks"},
 363                 {"show-all-parameters", '\0', POPT_ARG_VAL, &show_all_parameters, True, "Show the parameters, type, possible values" },
 364                 {"parameter-name", '\0', POPT_ARG_STRING, &parameter_name, 0, "Limit testparm to a named parameter" },
 365                 {"section-name", '\0', POPT_ARG_STRING, &section_name, 0, "Limit testparm to a named section" },
 366                 POPT_COMMON_VERSION
 367                 POPT_COMMON_DEBUGLEVEL
 368                 POPT_COMMON_OPTION
 369                 POPT_TABLEEND
 370         };
 371
 372         TALLOC_CTX *frame = talloc_stackframe();
 373
 374         load_case_tables();
 375         /*
 376          * Set the default debug level to 2.
 377          * Allow it to be overridden by the command line,
 378          * not by smb.conf.
 379          */
 380         lp_set_cmdline("log level", "2");
 381
 382         pc = poptGetContext(NULL, argc, argv, long_options,
 383                             POPT_CONTEXT_KEEP_FIRST);
 384         poptSetOtherOptionHelp(pc, "[OPTION...] <config-file> [host-name] [host-ip]");
 385
 386         while(poptGetNextOpt(pc) != -1);
 387
 388         if (show_all_parameters) {
 389                 show_parameter_list();
 390                 exit(0);
 391         }
 392
 393         setup_logging(poptGetArg(pc), DEBUG_STDERR);
 394
 395         if (poptPeekArg(pc))
 396                 config_file = poptGetArg(pc);
 397
 398         cname = poptGetArg(pc);
 399         caddr = poptGetArg(pc);
 400
 401         poptFreeContext(pc);
 402
 403         if ( cname && ! caddr ) {
 404                 printf ( "ERROR: You must specify both a machine name and an IP address.\n" );
 405                 ret = 1;
 406                 goto done;
 407         }
 408
 409         fprintf(stderr,"Load smb config files from %s\n",config_file);
 410
 411         if (!lp_load_with_registry_shares(config_file,False,True,False,True)) {
 412                 fprintf(stderr,"Error loading services.\n");
 413                 ret = 1;
 414                 goto done;
 415         }
 416
 417         fprintf(stderr,"Loaded services file OK.\n");
 418
 419         if (skip_logic_checks == 0) {
 420                 ret = do_global_checks();
 421         }
 422
 423         for (s=0;s<1000;s++) {
 424                 if (VALID_SNUM(s))
 425                         if (strlen(lp_servicename(talloc_tos(), s)) > 12) {
 426                                 fprintf(stderr, "WARNING: You have some share names that are longer than 12 characters.\n" );
 427                                 fprintf(stderr, "These may not be accessible to some older clients.\n" );
 428                                 fprintf(stderr, "(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)\n" );
 429                                 break;
 430                         }
 431         }
 432
 433         for (s=0;s<1000;s++) {
 434                 if (VALID_SNUM(s) && (skip_logic_checks == 0)) {
 435                         do_per_share_checks(s);
 436                 }
 437         }
 438
 439
 440         if (!section_name && !parameter_name) {
 441                 fprintf(stderr,"Server role: %s\n", server_role_str(lp_server_role()));
 442         }
 443
 444         if (!cname) {
 445                 if (!silent_mode) {
 446                         fprintf(stderr,"Press enter to see a dump of your service definitions\n");
 447                         fflush(stdout);
 448                         getc(stdin);
 449                 }
 450                 if (parameter_name || section_name) {
 451                         bool isGlobal = False;
 452                         s = GLOBAL_SECTION_SNUM;
 453
 454                         if (!section_name) {
 455                                 section_name = GLOBAL_NAME;
 456                                 isGlobal = True;
 457                         } else if ((isGlobal=!strwicmp(section_name, GLOBAL_NAME)) == 0 &&
 458                                  (s=lp_servicenumber(section_name)) == -1) {
 459                                         fprintf(stderr,"Unknown section %s\n",
 460                                                 section_name);
 461                                         ret = 1;
 462                                         goto done;
 463                         }
 464                         if (parameter_name) {
 465                                 if (!dump_a_parameter( s, parameter_name, stdout, isGlobal)) {
 466                                         fprintf(stderr,"Parameter %s unknown for section %s\n",
 467                                                 parameter_name, section_name);
 468                                         ret = 1;
 469                                         goto done;
 470                                 }
 471                         } else {
 472                                 if (isGlobal == True)
 473                                         lp_dump(stdout, show_defaults, 0);
 474                                 else
 475                                         lp_dump_one(stdout, show_defaults, s);
 476                         }
 477                         goto done;
 478                 }
 479
 480                 lp_dump(stdout, show_defaults, lp_numservices());
 481         }
 482
 483         if(cname && caddr){
 484                 /* this is totally ugly, a real `quick' hack */
 485                 for (s=0;s<1000;s++) {
 486                         if (VALID_SNUM(s)) {
 487                                 if (allow_access(lp_hostsdeny(-1), lp_hostsallow(-1), cname, caddr)
 488                                     && allow_access(lp_hostsdeny(s), lp_hostsallow(s), cname, caddr)) {
 489                                         fprintf(stderr,"Allow connection from %s (%s) to %s\n",
 490                                                    cname,caddr,lp_servicename(talloc_tos(), s));
 491                                 } else {
 492                                         fprintf(stderr,"Deny connection from %s (%s) to %s\n",
 493                                                    cname,caddr,lp_servicename(talloc_tos(), s));
 494                                 }
 495                         }
 496                 }
 497         }
 498
 499 done:
 500         gfree_loadparm();
 501         TALLOC_FREE(frame);
 502         return ret;
 503 }
 504