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