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 "popt_common.h"
  36
  37 extern bool AllowDebugChange;
  38
  39 /*******************************************************************
  40  Check if a directory exists.
  41 ********************************************************************/
  42
  43 static bool directory_exist_stat(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_wins_support() && 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(), global_myname())) {
  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
 139                         sec_setting = "";
 140
 141                 fprintf(stderr, "ERROR: The setting 'security=%s' requires the 'password server' parameter be set \
 142 to a valid password server.\n", sec_setting );
 143                 ret = 1;
 144         }
 145
 146         /*
 147          * Password chat sanity checks.
 148          */
 149
 150         if(lp_security() == SEC_USER && lp_unix_password_sync()) {
 151
 152                 /*
 153                  * Check that we have a valid lp_passwd_program() if not using pam.
 154                  */
 155
 156 #ifdef WITH_PAM
 157                 if (!lp_pam_password_change()) {
 158 #endif
 159
 160                         if((lp_passwd_program() == NULL) ||
 161                            (strlen(lp_passwd_program()) == 0))
 162                         {
 163                                 fprintf( stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd program' \
 164 parameter.\n" );
 165                                 ret = 1;
 166                         } else {
 167                                 const char *passwd_prog;
 168                                 char *truncated_prog = NULL;
 169                                 const char *p;
 170
 171                                 passwd_prog = lp_passwd_program();
 172                                 p = passwd_prog;
 173                                 next_token_talloc(talloc_tos(),
 174                                                 &p,
 175                                                 &truncated_prog, NULL);
 176                                 if (truncated_prog && access(truncated_prog, F_OK) == -1) {
 177                                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and the 'passwd program' (%s) \
 178 cannot be executed (error was %s).\n", truncated_prog, strerror(errno) );
 179                                         ret = 1;
 180                                 }
 181                         }
 182
 183 #ifdef WITH_PAM
 184                 }
 185 #endif
 186
 187                 if(lp_passwd_chat() == NULL) {
 188                         fprintf(stderr, "ERROR: the 'unix password sync' parameter is set and there is no valid 'passwd chat' \
 189 parameter.\n");
 190                         ret = 1;
 191                 }
 192
 193                 if ((lp_passwd_program() != NULL) &&
 194                     (strlen(lp_passwd_program()) > 0))
 195                 {
 196                         /* check if there's a %u parameter present */
 197                         if(strstr_m(lp_passwd_program(), "%u") == NULL) {
 198                                 fprintf(stderr, "ERROR: the 'passwd program' (%s) requires a '%%u' parameter.\n", lp_passwd_program());
 199                                 ret = 1;
 200                         }
 201                 }
 202
 203                 /*
 204                  * Check that we have a valid script and that it hasn't
 205                  * been written to expect the old password.
 206                  */
 207
 208                 if(lp_encrypted_passwords()) {
 209                         if(strstr_m( lp_passwd_chat(), "%o")!=NULL) {
 210                                 fprintf(stderr, "ERROR: the 'passwd chat' script [%s] expects to use the old plaintext password \
 211 via the %%o substitution. With encrypted passwords this is not possible.\n", lp_passwd_chat() );
 212                                 ret = 1;
 213                         }
 214                 }
 215         }
 216
 217         if (strlen(lp_winbind_separator()) != 1) {
 218                 fprintf(stderr,"ERROR: the 'winbind separator' parameter must be a single character.\n");
 219                 ret = 1;
 220         }
 221
 222         if (*lp_winbind_separator() == '+') {
 223                 fprintf(stderr,"'winbind separator = +' might cause problems with group membership.\n");
 224         }
 225
 226         if (lp_algorithmic_rid_base() < BASE_RID) {
 227                 /* Try to prevent admin foot-shooting, we can't put algorithmic
 228                    rids below 1000, that's the 'well known RIDs' on NT */
 229                 fprintf(stderr,"'algorithmic rid base' must be equal to or above %lu\n", BASE_RID);
 230         }
 231
 232         if (lp_algorithmic_rid_base() & 1) {
 233                 fprintf(stderr,"'algorithmic rid base' must be even.\n");
 234         }
 235
 236 #ifndef HAVE_DLOPEN
 237         if (lp_preload_modules()) {
 238                 fprintf(stderr,"WARNING: 'preload modules = ' set while loading plugins not supported.\n");
 239         }
 240 #endif
 241
 242         if (!lp_passdb_backend()) {
 243                 fprintf(stderr,"ERROR: passdb backend must have a value or be left out\n");
 244         }
 245
 246         if (lp_os_level() > 255) {
 247                 fprintf(stderr,"WARNING: Maximum value for 'os level' is 255!\n");
 248         }
 249
 250         return ret;
 251 }
 252
 253 /**
 254  * per-share logic tests
 255  */
 256 static void do_per_share_checks(int s)
 257 {
 258         const char **deny_list = lp_hostsdeny(s);
 259         const char **allow_list = lp_hostsallow(s);
 260         int i;
 261
 262         if(deny_list) {
 263                 for (i=0; deny_list[i]; i++) {
 264                         char *hasstar = strchr_m(deny_list[i], '*');
 265                         char *hasquery = strchr_m(deny_list[i], '?');
 266                         if(hasstar || hasquery) {
 267                                 fprintf(stderr,"Invalid character %c in hosts deny list (%s) for service %s.\n",
 268                                            hasstar ? *hasstar : *hasquery, deny_list[i], lp_servicename(s) );
 269                         }
 270                 }
 271         }
 272
 273         if(allow_list) {
 274                 for (i=0; allow_list[i]; i++) {
 275                         char *hasstar = strchr_m(allow_list[i], '*');
 276                         char *hasquery = strchr_m(allow_list[i], '?');
 277                         if(hasstar || hasquery) {
 278                                 fprintf(stderr,"Invalid character %c in hosts allow list (%s) for service %s.\n",
 279                                            hasstar ? *hasstar : *hasquery, allow_list[i], lp_servicename(s) );
 280                         }
 281                 }
 282         }
 283
 284         if(lp_level2_oplocks(s) && !lp_oplocks(s)) {
 285                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 286                            Level II oplocks can only be set if oplocks are also set.\n",
 287                            lp_servicename(s) );
 288         }
 289
 290         if (lp_map_hidden(s) && !(lp_create_mask(s) & S_IXOTH)) {
 291                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 292                            Map hidden can only work if create mask includes octal 01 (S_IXOTH).\n",
 293                            lp_servicename(s) );
 294         }
 295         if (lp_map_hidden(s) && (lp_force_create_mode(s) & S_IXOTH)) {
 296                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 297                            Map hidden can only work if force create mode excludes octal 01 (S_IXOTH).\n",
 298                            lp_servicename(s) );
 299         }
 300         if (lp_map_system(s) && !(lp_create_mask(s) & S_IXGRP)) {
 301                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 302                            Map system can only work if create mask includes octal 010 (S_IXGRP).\n",
 303                            lp_servicename(s) );
 304         }
 305         if (lp_map_system(s) && (lp_force_create_mode(s) & S_IXGRP)) {
 306                 fprintf(stderr,"Invalid combination of parameters for service %s. \
 307                            Map system can only work if force create mode excludes octal 010 (S_IXGRP).\n",
 308                            lp_servicename(s) );
 309         }
 310 #ifdef HAVE_CUPS
 311         if (lp_printing(s) == PRINT_CUPS && *(lp_printcommand(s)) != '\0') {
 312                  fprintf(stderr,"Warning: Service %s defines a print command, but \
 313 rameter is ignored when using CUPS libraries.\n",
 314                            lp_servicename(s) );
 315         }
 316 #endif
 317 }
 318
 319  int main(int argc, const char *argv[])
 320 {
 321         const char *config_file = get_dyn_CONFIGFILE();
 322         int s;
 323         static int silent_mode = False;
 324         static int show_all_parameters = False;
 325         int ret = 0;
 326         poptContext pc;
 327         static char *parameter_name = NULL;
 328         static const char *section_name = NULL;
 329         const char *cname;
 330         const char *caddr;
 331         static int show_defaults;
 332         static int skip_logic_checks = 0;
 333
 334         struct poptOption long_options[] = {
 335                 POPT_AUTOHELP
 336                 {"suppress-prompt", 's', POPT_ARG_VAL, &silent_mode, 1, "Suppress prompt for enter"},
 337                 {"verbose", 'v', POPT_ARG_NONE, &show_defaults, 1, "Show default options too"},
 338                 {"skip-logic-checks", 'l', POPT_ARG_NONE, &skip_logic_checks, 1, "Skip the global checks"},
 339                 {"show-all-parameters", '\0', POPT_ARG_VAL, &show_all_parameters, True, "Show the parameters, type, possible values" },
 340                 {"parameter-name", '\0', POPT_ARG_STRING, &parameter_name, 0, "Limit testparm to a named parameter" },
 341                 {"section-name", '\0', POPT_ARG_STRING, &section_name, 0, "Limit testparm to a named section" },
 342                 POPT_COMMON_VERSION
 343                 POPT_COMMON_DEBUGLEVEL
 344                 POPT_TABLEEND
 345         };
 346
 347         TALLOC_CTX *frame = talloc_stackframe();
 348
 349         load_case_tables();
 350         /*
 351          * Set the default debug level to 2.
 352          * Allow it to be overridden by the command line,
 353          * not by smb.conf.
 354          */
 355         DEBUGLEVEL_CLASS[DBGC_ALL] = 2;
 356
 357         pc = poptGetContext(NULL, argc, argv, long_options,
 358                             POPT_CONTEXT_KEEP_FIRST);
 359         poptSetOtherOptionHelp(pc, "[OPTION...] <config-file> [host-name] [host-ip]");
 360
 361         while(poptGetNextOpt(pc) != -1);
 362
 363         if (show_all_parameters) {
 364                 show_parameter_list();
 365                 exit(0);
 366         }
 367
 368         setup_logging(poptGetArg(pc), True);
 369
 370         if (poptPeekArg(pc))
 371                 config_file = poptGetArg(pc);
 372
 373         cname = poptGetArg(pc);
 374         caddr = poptGetArg(pc);
 375
 376         poptFreeContext(pc);
 377
 378         if ( cname && ! caddr ) {
 379                 printf ( "ERROR: You must specify both a machine name and an IP address.\n" );
 380                 ret = 1;
 381                 goto done;
 382         }
 383
 384         dbf = x_stderr;
 385         /* Don't let the debuglevel be changed by smb.conf. */
 386         AllowDebugChange = False;
 387
 388         fprintf(stderr,"Load smb config files from %s\n",config_file);
 389
 390         if (!lp_load_with_registry_shares(config_file,False,True,False,True)) {
 391                 fprintf(stderr,"Error loading services.\n");
 392                 ret = 1;
 393                 goto done;
 394         }
 395
 396         fprintf(stderr,"Loaded services file OK.\n");
 397
 398         if (skip_logic_checks == 0) {
 399                 ret = do_global_checks();
 400         }
 401
 402         for (s=0;s<1000;s++) {
 403                 if (VALID_SNUM(s))
 404                         if (strlen(lp_servicename(s)) > 12) {
 405                                 fprintf(stderr, "WARNING: You have some share names that are longer than 12 characters.\n" );
 406                                 fprintf(stderr, "These may not be accessible to some older clients.\n" );
 407                                 fprintf(stderr, "(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)\n" );
 408                                 break;
 409                         }
 410         }
 411
 412         for (s=0;s<1000;s++) {
 413                 if (VALID_SNUM(s) && (skip_logic_checks == 0)) {
 414                         do_per_share_checks(s);
 415                 }
 416         }
 417
 418
 419         if (!section_name && !parameter_name) {
 420                 fprintf(stderr,"Server role: %s\n", server_role_str(lp_server_role()));
 421         }
 422
 423         if (!cname) {
 424                 if (!silent_mode) {
 425                         fprintf(stderr,"Press enter to see a dump of your service definitions\n");
 426                         fflush(stdout);
 427                         getc(stdin);
 428                 }
 429                 if (parameter_name || section_name) {
 430                         bool isGlobal = False;
 431                         s = GLOBAL_SECTION_SNUM;
 432
 433                         if (!section_name) {
 434                                 section_name = GLOBAL_NAME;
 435                                 isGlobal = True;
 436                         } else if ((isGlobal=!strwicmp(section_name, GLOBAL_NAME)) == 0 &&
 437                                  (s=lp_servicenumber(section_name)) == -1) {
 438                                         fprintf(stderr,"Unknown section %s\n",
 439                                                 section_name);
 440                                         ret = 1;
 441                                         goto done;
 442                         }
 443                         if (parameter_name) {
 444                                 if (!dump_a_parameter( s, parameter_name, stdout, isGlobal)) {
 445                                         fprintf(stderr,"Parameter %s unknown for section %s\n",
 446                                                 parameter_name, section_name);
 447                                         ret = 1;
 448                                         goto done;
 449                                 }
 450                         } else {
 451                                 if (isGlobal == True)
 452                                         lp_dump(stdout, show_defaults, 0);
 453                                 else
 454                                         lp_dump_one(stdout, show_defaults, s);
 455                         }
 456                         goto done;
 457                 }
 458
 459                 lp_dump(stdout, show_defaults, lp_numservices());
 460         }
 461
 462         if(cname && caddr){
 463                 /* this is totally ugly, a real `quick' hack */
 464                 for (s=0;s<1000;s++) {
 465                         if (VALID_SNUM(s)) {
 466                                 if (allow_access(lp_hostsdeny(-1), lp_hostsallow(-1), cname, caddr)
 467                                     && allow_access(lp_hostsdeny(s), lp_hostsallow(s), cname, caddr)) {
 468                                         fprintf(stderr,"Allow connection from %s (%s) to %s\n",
 469                                                    cname,caddr,lp_servicename(s));
 470                                 } else {
 471                                         fprintf(stderr,"Deny connection from %s (%s) to %s\n",
 472                                                    cname,caddr,lp_servicename(s));
 473                                 }
 474                         }
 475                 }
 476         }
 477
 478 done:
 479         gfree_loadparm();
 480         TALLOC_FREE(frame);
 481         return ret;
 482 }
 483