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