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