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_SERVER || lp_security() >= SEC_DOMAIN) && !*lp_passwordserver()) {
 133                 const char *sec_setting;
 134                 if(lp_security() == SEC_SERVER)
 135                         sec_setting = "server";
 136                 else if(lp_security() == SEC_DOMAIN)
 137                         sec_setting = "domain";
 138                 else if(lp_security() == SEC_ADS)
 139                         sec_setting = "ads";
 140                 else
 141                         sec_setting = "";
 142
 143                 fprintf(stderr, "ERROR: The setting 'security=%s' requires the 'password server' parameter be set\n"
 144                         "to the default value * or a valid password server.\n", sec_setting );
 145                 ret = 1;
 146         }
 147
 148         if((lp_security() >= SEC_DOMAIN) && (strcmp(lp_passwordserver(), "*") != 0)) {
 149                 const char *sec_setting;
 150                 if(lp_security() == SEC_DOMAIN)
 151                         sec_setting = "domain";
 152                 else if(lp_security() == SEC_ADS)
 153                         sec_setting = "ads";
 154                 else
 155                         sec_setting = "";
 156
 157                 fprintf(stderr, "WARNING: The setting 'security=%s' should NOT be combined with the 'password server' parameter.\n"
 158                         "(by default Samba will discover the correct DC to contact automatically).\n", sec_setting );
 159         }
 160
 161         /*
 162          * Password chat sanity checks.
 163          */
 164
 165         if(lp_security() == SEC_USER && lp_unix_password_sync()) {
 166
 167                 /*
 168                  * Check that we have a valid lp_passwd_program() if not using pam.
 169                  */
 170
 171 #ifdef WITH_PAM
 172                 if (!lp_pam_password_change()) {
 173 #endif
 174
 175                         if((lp_passwd_program() == NULL) ||
 176                            (strlen(lp_passwd_program()) == 0))
 177                         {
 178                                 fprintf( stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd program' \
 179 parameter.\n" );
 180                                 ret = 1;
 181                         } else {
 182                                 const char *passwd_prog;
 183                                 char *truncated_prog = NULL;
 184                                 const char *p;
 185
 186                                 passwd_prog = lp_passwd_program();
 187                                 p = passwd_prog;
 188                                 next_token_talloc(talloc_tos(),
 189                                                 &p,
 190                                                 &truncated_prog, NULL);
 191                                 if (truncated_prog && access(truncated_prog, F_OK) == -1) {
 192                                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and the 'passwd program' (%s) \
 193 cannot be executed (error was %s).\n", truncated_prog, strerror(errno) );
 194                                         ret = 1;
 195                                 }
 196                         }
 197
 198 #ifdef WITH_PAM
 199                 }
 200 #endif
 201
 202                 if(lp_passwd_chat() == NULL) {
 203                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd chat' \
 204 parameter.\n");
 205                         ret = 1;
 206                 }
 207
 208                 if ((lp_passwd_program() != NULL) &&
 209                     (strlen(lp_passwd_program()) > 0))
 210                 {
 211                         /* check if there's a %u parameter present */
 212                         if(strstr_m(lp_passwd_program(), "%u") == NULL) {
 213                                 fprintf(stderr, "ERROR: the 'passwd program' (%s) requires a '%%u' parameter.\n", lp_passwd_program());
 214                                 ret = 1;
 215                         }
 216                 }
 217
 218                 /*
 219                  * Check that we have a valid script and that it hasn't
 220                  * been written to expect the old password.
 221                  */
 222
 223                 if(lp_encrypted_passwords()) {
 224                         if(strstr_m( lp_passwd_chat(), "%o")!=NULL) {
 225                                 fprintf(stderr, "ERROR: the 'passwd chat' script [%s] expects to use the old plaintext password \
 226 via the %%o substitution. With encrypted passwords this is not possible.\n", lp_passwd_chat() );
 227                                 ret = 1;
 228                         }
 229                 }
 230         }
 231
 232         if (strlen(lp_winbind_separator()) != 1) {
 233                 fprintf(stderr,"ERROR: the 'winbind separator' parameter must be a single character.\n");
 234                 ret = 1;
 235         }
 236
 237         if (*lp_winbind_separator() == '+') {
 238                 fprintf(stderr,"'winbind separator = +' might cause problems with group membership.\n");
 239         }
 240
 241         if (lp_algorithmic_rid_base() < BASE_RID) {
 242                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 243                    rids below 1000, that's the 'well known RIDs' on NT */
 244                 fprintf(stderr,"'algorithmic rid base' must be equal to or above %lu\n", BASE_RID);
 245         }
 246
 247         if (lp_algorithmic_rid_base() & 1) {
 248                 fprintf(stderr,"'algorithmic rid base' must be even.\n");
 249         }
 250
 251 #ifndef HAVE_DLOPEN
 252         if (lp_preload_modules()) {
 253                 fprintf(stderr,"WARNING: 'preload modules = ' set while loading plugins not supported.\n");
 254         }
 255 #endif
 256
 257         if (!lp_passdb_backend()) {
 258                 fprintf(stderr,"ERROR: passdb backend must have a value or be left out\n");
 259         }
 260
 261         if (lp_os_level() > 255) {
 262                 fprintf(stderr,"WARNING: Maximum value for 'os level' is 255!\n");
 263         }
 264
 265         if (strequal(lp_dos_charset(), "UTF8") || strequal(lp_dos_charset(), "UTF-8")) {
 266                 fprintf(stderr, "ERROR: 'dos charset' must not be UTF8\n");
 267                 ret = 1;
 268         }
 269
 270         return ret;
 271 }
 272
 273 /**
 274  * per-share logic tests
 275  */
 276 static void do_per_share_checks(int s)
 277 {
 278         const char **deny_list = lp_hostsdeny(s);
 279         const char **allow_list = lp_hostsallow(s);
 280         int i;
 281
 282         if(deny_list) {
 283                 for (i=0; deny_list[i]; i++) {
 284                         char *hasstar = strchr_m(deny_list[i], '*');
 285                         char *hasquery = strchr_m(deny_list[i], '?');
 286                         if(hasstar || hasquery) {
 287                                 fprintf(stderr,"Invalid character %c in hosts deny list (%s) for service %s.\n",
 288                                            hasstar ? *hasstar : *hasquery, deny_list[i], lp_servicename(s) );
 289                         }
 290                 }
 291         }
 292
 293         if(allow_list) {
 294                 for (i=0; allow_list[i]; i++) {
 295                         char *hasstar = strchr_m(allow_list[i], '*');
 296                         char *hasquery = strchr_m(allow_list[i], '?');
 297                         if(hasstar || hasquery) {
 298                                 fprintf(stderr,"Invalid character %c in hosts allow list (%s) for service %s.\n",
 299                                            hasstar ? *hasstar : *hasquery, allow_list[i], lp_servicename(s) );
 300                         }
 301                 }
 302         }
 303
 304         if(lp_level2_oplocks(s) && !lp_oplocks(s)) {
 305                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 306                            Level II oplocks can only be set if oplocks are also set.\n",
 307                            lp_servicename(s) );
 308         }
 309
 310         if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
 311             && !(lp_create_mask(s) & S_IXOTH))
 312         {
 313                 fprintf(stderr,"Invalid combination of parameters for service "
 314                         "%s. Map hidden can only work if create mask includes "
 315                         "octal 01 (S_IXOTH).\n", lp_servicename(s));
 316         }
 317         if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
 318             && (lp_force_create_mode(s) & S_IXOTH))
 319         {
 320                 fprintf(stderr,"Invalid combination of parameters for service "
 321                         "%s. Map hidden can only work if force create mode "
 322                         "excludes octal 01 (S_IXOTH).\n", lp_servicename(s));
 323         }
 324         if (!lp_store_dos_attributes(s) && lp_map_system(s)
 325             && !(lp_create_mask(s) & S_IXGRP))
 326         {
 327                 fprintf(stderr,"Invalid combination of parameters for service "
 328                         "%s. Map system can only work if create mask includes "
 329                         "octal 010 (S_IXGRP).\n", lp_servicename(s));
 330         }
 331         if (!lp_store_dos_attributes(s) && lp_map_system(s)
 332             && (lp_force_create_mode(s) & S_IXGRP))
 333         {
 334                 fprintf(stderr,"Invalid combination of parameters for service "
 335                         "%s. Map system can only work if force create mode "
 336                         "excludes octal 010 (S_IXGRP).\n", lp_servicename(s));
 337         }
 338 #ifdef HAVE_CUPS
 339         if (lp_printing(s) == PRINT_CUPS && *(lp_printcommand(s)) != '\0') {
 340                  fprintf(stderr,"Warning: Service %s defines a print command, but \
 341 rameter is ignored when using CUPS libraries.\n",
 342                            lp_servicename(s) );
 343         }
 344 #endif
 345 }
 346
 347  int main(int argc, const char *argv[])
 348 {
 349         const char *config_file = get_dyn_CONFIGFILE();
 350         int s;
 351         static int silent_mode = False;
 352         static int show_all_parameters = False;
 353         int ret = 0;
 354         poptContext pc;
 355         static char *parameter_name = NULL;
 356         static const char *section_name = NULL;
 357         const char *cname;
 358         const char *caddr;
 359         static int show_defaults;
 360         static int skip_logic_checks = 0;
 361
 362         struct poptOption long_options[] = {
 363                 POPT_AUTOHELP
 364                 {"suppress-prompt", 's', POPT_ARG_VAL, &silent_mode, 1, "Suppress prompt for enter"},
 365                 {"verbose", 'v', POPT_ARG_NONE, &show_defaults, 1, "Show default options too"},
 366                 {"skip-logic-checks", 'l', POPT_ARG_NONE, &skip_logic_checks, 1, "Skip the global checks"},
 367                 {"show-all-parameters", '\0', POPT_ARG_VAL, &show_all_parameters, True, "Show the parameters, type, possible values" },
 368                 {"parameter-name", '\0', POPT_ARG_STRING, &parameter_name, 0, "Limit testparm to a named parameter" },
 369                 {"section-name", '\0', POPT_ARG_STRING, &section_name, 0, "Limit testparm to a named section" },
 370                 POPT_COMMON_VERSION
 371                 POPT_COMMON_DEBUGLEVEL
 372                 POPT_COMMON_OPTION
 373                 POPT_TABLEEND
 374         };
 375
 376         TALLOC_CTX *frame = talloc_stackframe();
 377
 378         load_case_tables();
 379         /*
 380          * Set the default debug level to 2.
 381          * Allow it to be overridden by the command line,
 382          * not by smb.conf.
 383          */
 384         lp_set_cmdline("log level", "2");
 385
 386         pc = poptGetContext(NULL, argc, argv, long_options,
 387                             POPT_CONTEXT_KEEP_FIRST);
 388         poptSetOtherOptionHelp(pc, "[OPTION...] <config-file> [host-name] [host-ip]");
 389
 390         while(poptGetNextOpt(pc) != -1);
 391
 392         if (show_all_parameters) {
 393                 show_parameter_list();
 394                 exit(0);
 395         }
 396
 397         setup_logging(poptGetArg(pc), DEBUG_STDERR);
 398
 399         if (poptPeekArg(pc))
 400                 config_file = poptGetArg(pc);
 401
 402         cname = poptGetArg(pc);
 403         caddr = poptGetArg(pc);
 404
 405         poptFreeContext(pc);
 406
 407         if ( cname && ! caddr ) {
 408                 printf ( "ERROR: You must specify both a machine name and an IP address.\n" );
 409                 ret = 1;
 410                 goto done;
 411         }
 412
 413         fprintf(stderr,"Load smb config files from %s\n",config_file);
 414
 415         if (!lp_load_with_registry_shares(config_file,False,True,False,True)) {
 416                 fprintf(stderr,"Error loading services.\n");
 417                 ret = 1;
 418                 goto done;
 419         }
 420
 421         fprintf(stderr,"Loaded services file OK.\n");
 422
 423         if (skip_logic_checks == 0) {
 424                 ret = do_global_checks();
 425         }
 426
 427         for (s=0;s<1000;s++) {
 428                 if (VALID_SNUM(s))
 429                         if (strlen(lp_servicename(s)) > 12) {
 430                                 fprintf(stderr, "WARNING: You have some share names that are longer than 12 characters.\n" );
 431                                 fprintf(stderr, "These may not be accessible to some older clients.\n" );
 432                                 fprintf(stderr, "(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)\n" );
 433                                 break;
 434                         }
 435         }
 436
 437         for (s=0;s<1000;s++) {
 438                 if (VALID_SNUM(s) && (skip_logic_checks == 0)) {
 439                         do_per_share_checks(s);
 440                 }
 441         }
 442
 443
 444         if (!section_name && !parameter_name) {
 445                 fprintf(stderr,"Server role: %s\n", server_role_str(lp_server_role()));
 446         }
 447
 448         if (!cname) {
 449                 if (!silent_mode) {
 450                         fprintf(stderr,"Press enter to see a dump of your service definitions\n");
 451                         fflush(stdout);
 452                         getc(stdin);
 453                 }
 454                 if (parameter_name || section_name) {
 455                         bool isGlobal = False;
 456                         s = GLOBAL_SECTION_SNUM;
 457
 458                         if (!section_name) {
 459                                 section_name = GLOBAL_NAME;
 460                                 isGlobal = True;
 461                         } else if ((isGlobal=!strwicmp(section_name, GLOBAL_NAME)) == 0 &&
 462                                  (s=lp_servicenumber(section_name)) == -1) {
 463                                         fprintf(stderr,"Unknown section %s\n",
 464                                                 section_name);
 465                                         ret = 1;
 466                                         goto done;
 467                         }
 468                         if (parameter_name) {
 469                                 if (!dump_a_parameter( s, parameter_name, stdout, isGlobal)) {
 470                                         fprintf(stderr,"Parameter %s unknown for section %s\n",
 471                                                 parameter_name, section_name);
 472                                         ret = 1;
 473                                         goto done;
 474                                 }
 475                         } else {
 476                                 if (isGlobal == True)
 477                                         lp_dump(stdout, show_defaults, 0);
 478                                 else
 479                                         lp_dump_one(stdout, show_defaults, s);
 480                         }
 481                         goto done;
 482                 }
 483
 484                 lp_dump(stdout, show_defaults, lp_numservices());
 485         }
 486
 487         if(cname && caddr){
 488                 /* this is totally ugly, a real `quick' hack */
 489                 for (s=0;s<1000;s++) {
 490                         if (VALID_SNUM(s)) {
 491                                 if (allow_access(lp_hostsdeny(-1), lp_hostsallow(-1), cname, caddr)
 492                                     && allow_access(lp_hostsdeny(s), lp_hostsallow(s), cname, caddr)) {
 493                                         fprintf(stderr,"Allow connection from %s (%s) to %s\n",
 494                                                    cname,caddr,lp_servicename(s));
 495                                 } else {
 496                                         fprintf(stderr,"Deny connection from %s (%s) to %s\n",
 497                                                    cname,caddr,lp_servicename(s));
 498                                 }
 499                         }
 500                 }
 501         }
 502
 503 done:
 504         gfree_loadparm();
 505         TALLOC_FREE(frame);
 506         return ret;
 507 }
 508