source3/param/loadparm.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Parameter loading functions
   4    Copyright (C) Karl Auer 1993-1998
   5
   6    Largely re-written by Andrew Tridgell, September 1994
   7
   8    Copyright (C) Simo Sorce 2001
   9    Copyright (C) Alexander Bokovoy 2002
  10    Copyright (C) Stefan (metze) Metzmacher 2002
  11    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
  12    Copyright (C) Michael Adam 2008
  13    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
  14    Copyright (C) Andrew Bartlett 2011
  15
  16    This program is free software; you can redistribute it and/or modify
  17    it under the terms of the GNU General Public License as published by
  18    the Free Software Foundation; either version 3 of the License, or
  19    (at your option) any later version.
  20
  21    This program is distributed in the hope that it will be useful,
  22    but WITHOUT ANY WARRANTY; without even the implied warranty of
  23    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24    GNU General Public License for more details.
  25
  26    You should have received a copy of the GNU General Public License
  27    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  28 */
  29
  30 /*
  31  *  Load parameters.
  32  *
  33  *  This module provides suitable callback functions for the params
  34  *  module. It builds the internal table of service details which is
  35  *  then used by the rest of the server.
  36  *
  37  * To add a parameter:
  38  *
  39  * 1) add it to the global or service structure definition
  40  * 2) add it to the parm_table
  41  * 3) add it to the list of available functions (eg: using FN_GLOBAL_STRING())
  42  * 4) If it's a global then initialise it in init_globals. If a local
  43  *    (ie. service) parameter then initialise it in the sDefault structure
  44  *
  45  *
  46  * Notes:
  47  *   The configuration file is processed sequentially for speed. It is NOT
  48  *   accessed randomly as happens in 'real' Windows. For this reason, there
  49  *   is a fair bit of sequence-dependent code here - ie., code which assumes
  50  *   that certain things happen before others. In particular, the code which
  51  *   happens at the boundary between sections is delicately poised, so be
  52  *   careful!
  53  *
  54  */
  55
  56 #include "includes.h"
  57 #include "system/filesys.h"
  58 #include "util_tdb.h"
  59 #include "lib/param/loadparm.h"
  60 #include "printing.h"
  61 #include "lib/smbconf/smbconf.h"
  62 #include "lib/smbconf/smbconf_init.h"
  63
  64 #include "ads.h"
  65 #include "../librpc/gen_ndr/svcctl.h"
  66 #include "intl.h"
  67 #include "../libcli/smb/smb_signing.h"
  68 #include "dbwrap/dbwrap.h"
  69 #include "dbwrap/dbwrap_rbt.h"
  70 #include "../lib/util/bitmap.h"
  71
  72 #ifdef HAVE_SYS_SYSCTL_H
  73 #include <sys/sysctl.h>
  74 #endif
  75
  76 #ifdef HAVE_HTTPCONNECTENCRYPT
  77 #include <cups/http.h>
  78 #endif
  79
  80 #ifdef CLUSTER_SUPPORT
  81 #include "ctdb_private.h"
  82 #endif
  83
  84 bool bLoaded = false;
  85
  86 extern userdom_struct current_user_info;
  87
  88 /* the special value for the include parameter
  89  * to be interpreted not as a file name but to
  90  * trigger loading of the global smb.conf options
  91  * from registry. */
  92 #ifndef INCLUDE_REGISTRY_NAME
  93 #define INCLUDE_REGISTRY_NAME "registry"
  94 #endif
  95
  96 static bool in_client = false;          /* Not in the client by default */
  97 static struct smbconf_csn conf_last_csn;
  98
  99 static int config_backend = CONFIG_BACKEND_FILE;
 100
 101 /* some helpful bits */
 102 #define LP_SNUM_OK(i) (((i) >= 0) && ((i) < iNumServices) && (ServicePtrs != NULL) && ServicePtrs[(i)]->valid)
 103 #define VALID(i) (ServicePtrs != NULL && ServicePtrs[i]->valid)
 104
 105 #define USERSHARE_VALID 1
 106 #define USERSHARE_PENDING_DELETE 2
 107
 108 static bool defaults_saved = false;
 109
 110 #define LOADPARM_EXTRA_GLOBALS \
 111         struct parmlist_entry *param_opt;                               \
 112         char *szRealm;                                                  \
 113         char *loglevel;                                                 \
 114         int iminreceivefile;                                            \
 115         char *szPrintcapname;                                           \
 116         int CupsEncrypt;                                                \
 117         int  iPreferredMaster;                                          \
 118         char *szLdapMachineSuffix;                                      \
 119         char *szLdapUserSuffix;                                         \
 120         char *szLdapIdmapSuffix;                                        \
 121         char *szLdapGroupSuffix;                                        \
 122         char *szStateDir;                                               \
 123         char *szCacheDir;                                               \
 124         char *szUsershareTemplateShare;                                 \
 125         char *szIdmapUID;                                               \
 126         char *szIdmapGID;                                               \
 127         int winbindMaxDomainConnections;                                \
 128         int ismb2_max_credits;                                          \
 129         char *tls_keyfile;                                              \
 130         char *tls_certfile;                                             \
 131         char *tls_cafile;                                               \
 132         char *tls_crlfile;                                              \
 133         char *tls_dhpfile;                                              \
 134         int bPreferredMaster;
 135
 136 #include "param/param_global.h"
 137
 138 static struct loadparm_global Globals;
 139
 140 /* This is a default service used to prime a services structure */
 141 static struct loadparm_service sDefault =
 142 {
 143         .valid = true,
 144         .autoloaded = false,
 145         .usershare = 0,
 146         .usershare_last_mod = {0, 0},
 147         .szService = NULL,
 148         .szPath = NULL,
 149         .szUsername = NULL,
 150         .szInvalidUsers = NULL,
 151         .szValidUsers = NULL,
 152         .szAdminUsers = NULL,
 153         .szCopy = NULL,
 154         .szInclude = NULL,
 155         .szPreExec = NULL,
 156         .szPostExec = NULL,
 157         .szRootPreExec = NULL,
 158         .szRootPostExec = NULL,
 159         .szCupsOptions = NULL,
 160         .szPrintcommand = NULL,
 161         .szLpqcommand = NULL,
 162         .szLprmcommand = NULL,
 163         .szLppausecommand = NULL,
 164         .szLpresumecommand = NULL,
 165         .szQueuepausecommand = NULL,
 166         .szQueueresumecommand = NULL,
 167         .szPrintername = NULL,
 168         .szPrintjobUsername = NULL,
 169         .szDontdescend = NULL,
 170         .szHostsallow = NULL,
 171         .szHostsdeny = NULL,
 172         .szMagicScript = NULL,
 173         .szMagicOutput = NULL,
 174         .szVetoFiles = NULL,
 175         .szHideFiles = NULL,
 176         .szVetoOplockFiles = NULL,
 177         .comment = NULL,
 178         .force_user = NULL,
 179         .force_group = NULL,
 180         .readlist = NULL,
 181         .writelist = NULL,
 182         .volume = NULL,
 183         .fstype = NULL,
 184         .szVfsObjects = NULL,
 185         .szMSDfsProxy = NULL,
 186         .szAioWriteBehind = NULL,
 187         .szDfree = NULL,
 188         .iMinPrintSpace = 0,
 189         .iMaxPrintJobs = 1000,
 190         .iMaxReportedPrintJobs = 0,
 191         .iWriteCacheSize = 0,
 192         .iCreate_mask = 0744,
 193         .iCreate_force_mode = 0,
 194         .iDir_mask = 0755,
 195         .iDir_force_mode = 0,
 196         .iMaxConnections = 0,
 197         .iDefaultCase = CASE_LOWER,
 198         .iPrinting = DEFAULT_PRINTING,
 199         .iOplockContentionLimit = 2,
 200         .iCSCPolicy = 0,
 201         .iBlock_size = 1024,
 202         .iDfreeCacheTime = 0,
 203         .bPreexecClose = false,
 204         .bRootpreexecClose = false,
 205         .iCaseSensitive = Auto,
 206         .bCasePreserve = true,
 207         .bShortCasePreserve = true,
 208         .bHideDotFiles = true,
 209         .bHideSpecialFiles = false,
 210         .bHideUnReadable = false,
 211         .bHideUnWriteableFiles = false,
 212         .bBrowseable = true,
 213         .bAccessBasedShareEnum = false,
 214         .bAvailable = true,
 215         .bRead_only = true,
 216         .bNo_set_dir = true,
 217         .bGuest_only = false,
 218         .bAdministrative_share = false,
 219         .bGuest_ok = false,
 220         .bPrint_ok = false,
 221         .bPrintNotifyBackchannel = true,
 222         .bMap_system = false,
 223         .bMap_hidden = false,
 224         .bMap_archive = true,
 225         .bStoreDosAttributes = false,
 226         .bDmapiSupport = false,
 227         .bLocking = true,
 228         .iStrictLocking = Auto,
 229         .bPosixLocking = true,
 230         .bOpLocks = true,
 231         .bKernelOplocks = false,
 232         .bLevel2OpLocks = true,
 233         .bOnlyUser = false,
 234         .bMangledNames = true,
 235         .bWidelinks = false,
 236         .bSymlinks = true,
 237         .bSyncAlways = false,
 238         .bStrictAllocate = false,
 239         .bStrictSync = false,
 240         .magic_char = '~',
 241         .copymap = NULL,
 242         .bDeleteReadonly = false,
 243         .bFakeOplocks = false,
 244         .bDeleteVetoFiles = false,
 245         .bDosFilemode = false,
 246         .bDosFiletimes = true,
 247         .bDosFiletimeResolution = false,
 248         .bFakeDirCreateTimes = false,
 249         .bBlockingLocks = true,
 250         .bInheritPerms = false,
 251         .bInheritACLS = false,
 252         .bInheritOwner = false,
 253         .bMSDfsRoot = false,
 254         .bUseClientDriver = false,
 255         .bDefaultDevmode = true,
 256         .bForcePrintername = false,
 257         .bNTAclSupport = true,
 258         .bForceUnknownAclUser = false,
 259         .bUseSendfile = false,
 260         .bProfileAcls = false,
 261         .bMap_acl_inherit = false,
 262         .bAfs_Share = false,
 263         .bEASupport = false,
 264         .bAclCheckPermissions = true,
 265         .bAclMapFullControl = true,
 266         .bAclGroupControl = false,
 267         .bChangeNotify = true,
 268         .bKernelChangeNotify = true,
 269         .iallocation_roundup_size = SMB_ROUNDUP_ALLOCATION_SIZE,
 270         .iAioReadSize = 0,
 271         .iAioWriteSize = 0,
 272         .iMap_readonly = MAP_READONLY_YES,
 273 #ifdef BROKEN_DIRECTORY_HANDLING
 274         .iDirectoryNameCacheSize = 0,
 275 #else
 276         .iDirectoryNameCacheSize = 100,
 277 #endif
 278         .ismb_encrypt = SMB_SIGNING_DEFAULT,
 279         .bKernelShareModes = true,
 280         .bDurableHandles = true,
 281         .param_opt = NULL,
 282         .dummy = ""
 283 };
 284
 285 /* local variables */
 286 static struct loadparm_service **ServicePtrs = NULL;
 287 static int iNumServices = 0;
 288 static int iServiceIndex = 0;
 289 static struct db_context *ServiceHash;
 290 static int *invalid_services = NULL;
 291 static int num_invalid_services = 0;
 292 static bool bInGlobalSection = true;
 293 static bool bGlobalOnly = false;
 294
 295 #define NUMPARAMETERS (sizeof(parm_table) / sizeof(struct parm_struct))
 296
 297 /* prototypes for the special type handlers */
 298 static bool handle_include(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 299 static bool handle_copy(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 300 static bool handle_idmap_backend(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 301 static bool handle_idmap_uid(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 302 static bool handle_idmap_gid(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 303 static bool handle_debug_list(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr );
 304 static bool handle_realm(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr );
 305 static bool handle_netbios_aliases(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr );
 306 static bool handle_charset(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr );
 307 static bool handle_dos_charset(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr );
 308 static bool handle_printing(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 309 static bool handle_ldap_debug_level(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr);
 310
 311 /* these are parameter handlers which are not needed in the
 312  * source3 code
 313  */
 314
 315 #define handle_logfile NULL
 316
 317 static void set_allowed_client_auth(void);
 318
 319 static void add_to_file_list(const char *fname, const char *subfname);
 320 static bool lp_set_cmdline_helper(const char *pszParmName, const char *pszParmValue, bool store_values);
 321 static void free_param_opts(struct parmlist_entry **popts);
 322
 323 #include "lib/param/param_table.c"
 324
 325 /* this is used to prevent lots of mallocs of size 1 */
 326 static const char null_string[] = "";
 327
 328 /**
 329  Set a string value, allocing the space for the string
 330 **/
 331
 332 static bool string_init(char **dest,const char *src)
 333 {
 334         size_t l;
 335
 336         if (!src)
 337                 src = "";
 338
 339         l = strlen(src);
 340
 341         if (l == 0) {
 342                 *dest = discard_const_p(char, null_string);
 343         } else {
 344                 (*dest) = SMB_STRDUP(src);
 345                 if ((*dest) == NULL) {
 346                         DEBUG(0,("Out of memory in string_init\n"));
 347                         return false;
 348                 }
 349         }
 350         return(true);
 351 }
 352
 353 /**
 354  Free a string value.
 355 **/
 356
 357 static void string_free(char **s)
 358 {
 359         if (!s || !(*s))
 360                 return;
 361         if (*s == null_string)
 362                 *s = NULL;
 363         SAFE_FREE(*s);
 364 }
 365
 366 /**
 367  Set a string value, deallocating any existing space, and allocing the space
 368  for the string
 369 **/
 370
 371 static bool string_set(char **dest,const char *src)
 372 {
 373         string_free(dest);
 374         return(string_init(dest,src));
 375 }
 376
 377 /***************************************************************************
 378  Initialise the sDefault parameter structure for the printer values.
 379 ***************************************************************************/
 380
 381 static void init_printer_values(struct loadparm_service *pService)
 382 {
 383         /* choose defaults depending on the type of printing */
 384         switch (pService->iPrinting) {
 385                 case PRINT_BSD:
 386                 case PRINT_AIX:
 387                 case PRINT_LPRNT:
 388                 case PRINT_LPROS2:
 389                         string_set(&pService->szLpqcommand, "lpq -P'%p'");
 390                         string_set(&pService->szLprmcommand, "lprm -P'%p' %j");
 391                         string_set(&pService->szPrintcommand, "lpr -r -P'%p' %s");
 392                         break;
 393
 394                 case PRINT_LPRNG:
 395                 case PRINT_PLP:
 396                         string_set(&pService->szLpqcommand, "lpq -P'%p'");
 397                         string_set(&pService->szLprmcommand, "lprm -P'%p' %j");
 398                         string_set(&pService->szPrintcommand, "lpr -r -P'%p' %s");
 399                         string_set(&pService->szQueuepausecommand, "lpc stop '%p'");
 400                         string_set(&pService->szQueueresumecommand, "lpc start '%p'");
 401                         string_set(&pService->szLppausecommand, "lpc hold '%p' %j");
 402                         string_set(&pService->szLpresumecommand, "lpc release '%p' %j");
 403                         break;
 404
 405                 case PRINT_CUPS:
 406                 case PRINT_IPRINT:
 407                         /* set the lpq command to contain the destination printer
 408                            name only.  This is used by cups_queue_get() */
 409                         string_set(&pService->szLpqcommand, "%p");
 410                         string_set(&pService->szLprmcommand, "");
 411                         string_set(&pService->szPrintcommand, "");
 412                         string_set(&pService->szLppausecommand, "");
 413                         string_set(&pService->szLpresumecommand, "");
 414                         string_set(&pService->szQueuepausecommand, "");
 415                         string_set(&pService->szQueueresumecommand, "");
 416                         break;
 417
 418                 case PRINT_SYSV:
 419                 case PRINT_HPUX:
 420                         string_set(&pService->szLpqcommand, "lpstat -o%p");
 421                         string_set(&pService->szLprmcommand, "cancel %p-%j");
 422                         string_set(&pService->szPrintcommand, "lp -c -d%p %s; rm %s");
 423                         string_set(&pService->szQueuepausecommand, "disable %p");
 424                         string_set(&pService->szQueueresumecommand, "enable %p");
 425 #ifndef HPUX
 426                         string_set(&pService->szLppausecommand, "lp -i %p-%j -H hold");
 427                         string_set(&pService->szLpresumecommand, "lp -i %p-%j -H resume");
 428 #endif /* HPUX */
 429                         break;
 430
 431                 case PRINT_QNX:
 432                         string_set(&pService->szLpqcommand, "lpq -P%p");
 433                         string_set(&pService->szLprmcommand, "lprm -P%p %j");
 434                         string_set(&pService->szPrintcommand, "lp -r -P%p %s");
 435                         break;
 436
 437 #if defined(DEVELOPER) || defined(ENABLE_SELFTEST)
 438
 439         case PRINT_TEST:
 440         case PRINT_VLP: {
 441                 const char *tdbfile;
 442                 TALLOC_CTX *tmp_ctx = talloc_stackframe();
 443                 char *tmp;
 444
 445                 tdbfile = talloc_asprintf(
 446                         tmp_ctx, "tdbfile=%s",
 447                         lp_parm_const_string(-1, "vlp", "tdbfile",
 448                                              "/tmp/vlp.tdb"));
 449                 if (tdbfile == NULL) {
 450                         tdbfile="tdbfile=/tmp/vlp.tdb";
 451                 }
 452
 453                 tmp = talloc_asprintf(tmp_ctx, "vlp %s print %%p %%s",
 454                                       tdbfile);
 455                 string_set(&pService->szPrintcommand,
 456                            tmp ? tmp : "vlp print %p %s");
 457
 458                 tmp = talloc_asprintf(tmp_ctx, "vlp %s lpq %%p",
 459                                       tdbfile);
 460                 string_set(&pService->szLpqcommand,
 461                            tmp ? tmp : "vlp lpq %p");
 462
 463                 tmp = talloc_asprintf(tmp_ctx, "vlp %s lprm %%p %%j",
 464                                       tdbfile);
 465                 string_set(&pService->szLprmcommand,
 466                            tmp ? tmp : "vlp lprm %p %j");
 467
 468                 tmp = talloc_asprintf(tmp_ctx, "vlp %s lppause %%p %%j",
 469                                       tdbfile);
 470                 string_set(&pService->szLppausecommand,
 471                            tmp ? tmp : "vlp lppause %p %j");
 472
 473                 tmp = talloc_asprintf(tmp_ctx, "vlp %s lpresume %%p %%j",
 474                                       tdbfile);
 475                 string_set(&pService->szLpresumecommand,
 476                            tmp ? tmp : "vlp lpresume %p %j");
 477
 478                 tmp = talloc_asprintf(tmp_ctx, "vlp %s queuepause %%p",
 479                                       tdbfile);
 480                 string_set(&pService->szQueuepausecommand,
 481                            tmp ? tmp : "vlp queuepause %p");
 482
 483                 tmp = talloc_asprintf(tmp_ctx, "vlp %s queueresume %%p",
 484                                       tdbfile);
 485                 string_set(&pService->szQueueresumecommand,
 486                            tmp ? tmp : "vlp queueresume %p");
 487                 TALLOC_FREE(tmp_ctx);
 488
 489                 break;
 490         }
 491 #endif /* DEVELOPER */
 492
 493         }
 494 }
 495 /**
 496  *  Function to return the default value for the maximum number of open
 497  *  file descriptors permitted.  This function tries to consult the
 498  *  kernel-level (sysctl) and ulimit (getrlimit()) values and goes
 499  *  the smaller of those.
 500  */
 501 static int max_open_files(void)
 502 {
 503         int sysctl_max = MAX_OPEN_FILES;
 504         int rlimit_max = MAX_OPEN_FILES;
 505
 506 #ifdef HAVE_SYSCTLBYNAME
 507         {
 508                 size_t size = sizeof(sysctl_max);
 509                 sysctlbyname("kern.maxfilesperproc", &sysctl_max, &size, NULL,
 510                              0);
 511         }
 512 #endif
 513
 514 #if (defined(HAVE_GETRLIMIT) && defined(RLIMIT_NOFILE))
 515         {
 516                 struct rlimit rl;
 517
 518                 ZERO_STRUCT(rl);
 519
 520                 if (getrlimit(RLIMIT_NOFILE, &rl) == 0)
 521                         rlimit_max = rl.rlim_cur;
 522
 523 #if defined(RLIM_INFINITY)
 524                 if(rl.rlim_cur == RLIM_INFINITY)
 525                         rlimit_max = MAX_OPEN_FILES;
 526 #endif
 527         }
 528 #endif
 529
 530         if (sysctl_max < MIN_OPEN_FILES_WINDOWS) {
 531                 DEBUG(2,("max_open_files: increasing sysctl_max (%d) to "
 532                         "minimum Windows limit (%d)\n",
 533                         sysctl_max,
 534                         MIN_OPEN_FILES_WINDOWS));
 535                 sysctl_max = MIN_OPEN_FILES_WINDOWS;
 536         }
 537
 538         if (rlimit_max < MIN_OPEN_FILES_WINDOWS) {
 539                 DEBUG(2,("rlimit_max: increasing rlimit_max (%d) to "
 540                         "minimum Windows limit (%d)\n",
 541                         rlimit_max,
 542                         MIN_OPEN_FILES_WINDOWS));
 543                 rlimit_max = MIN_OPEN_FILES_WINDOWS;
 544         }
 545
 546         return MIN(sysctl_max, rlimit_max);
 547 }
 548
 549 /**
 550  * Common part of freeing allocated data for one parameter.
 551  */
 552 static void free_one_parameter_common(void *parm_ptr,
 553                                       struct parm_struct parm)
 554 {
 555         if ((parm.type == P_STRING) ||
 556             (parm.type == P_USTRING))
 557         {
 558                 string_free((char**)parm_ptr);
 559         } else if (parm.type == P_LIST) {
 560                 TALLOC_FREE(*((char***)parm_ptr));
 561         }
 562 }
 563
 564 /**
 565  * Free the allocated data for one parameter for a share
 566  * given as a service struct.
 567  */
 568 static void free_one_parameter(struct loadparm_service *service,
 569                                struct parm_struct parm)
 570 {
 571         void *parm_ptr;
 572
 573         if (parm.p_class != P_LOCAL) {
 574                 return;
 575         }
 576
 577         parm_ptr = lp_parm_ptr(service, &parm);
 578
 579         free_one_parameter_common(parm_ptr, parm);
 580 }
 581
 582 /**
 583  * Free the allocated parameter data of a share given
 584  * as a service struct.
 585  */
 586 static void free_parameters(struct loadparm_service *service)
 587 {
 588         uint32_t i;
 589
 590         for (i=0; parm_table[i].label; i++) {
 591                 free_one_parameter(service, parm_table[i]);
 592         }
 593 }
 594
 595 /**
 596  * Free the allocated data for one parameter for a given share
 597  * specified by an snum.
 598  */
 599 static void free_one_parameter_by_snum(int snum, struct parm_struct parm)
 600 {
 601         void *parm_ptr;
 602
 603         if (snum < 0) {
 604                 parm_ptr = lp_parm_ptr(NULL, &parm);
 605         } else if (parm.p_class != P_LOCAL) {
 606                 return;
 607         } else {
 608                 parm_ptr = lp_local_ptr_by_snum(snum, &parm);
 609         }
 610
 611         free_one_parameter_common(parm_ptr, parm);
 612 }
 613
 614 /**
 615  * Free the allocated parameter data for a share specified
 616  * by an snum.
 617  */
 618 static void free_parameters_by_snum(int snum)
 619 {
 620         uint32_t i;
 621
 622         for (i=0; parm_table[i].label; i++) {
 623                 free_one_parameter_by_snum(snum, parm_table[i]);
 624         }
 625 }
 626
 627 /**
 628  * Free the allocated global parameters.
 629  */
 630 static void free_global_parameters(void)
 631 {
 632         free_param_opts(&Globals.param_opt);
 633         free_parameters_by_snum(GLOBAL_SECTION_SNUM);
 634         TALLOC_FREE(Globals.ctx);
 635 }
 636
 637 static int map_parameter(const char *pszParmName);
 638
 639 struct lp_stored_option {
 640         struct lp_stored_option *prev, *next;
 641         const char *label;
 642         const char *value;
 643 };
 644
 645 static struct lp_stored_option *stored_options;
 646
 647 /*
 648   save options set by lp_set_cmdline() into a list. This list is
 649   re-applied when we do a globals reset, so that cmdline set options
 650   are sticky across reloads of smb.conf
 651  */
 652 static bool store_lp_set_cmdline(const char *pszParmName, const char *pszParmValue)
 653 {
 654         struct lp_stored_option *entry, *entry_next;
 655         for (entry = stored_options; entry != NULL; entry = entry_next) {
 656                 entry_next = entry->next;
 657                 if (strcmp(pszParmName, entry->label) == 0) {
 658                         DLIST_REMOVE(stored_options, entry);
 659                         talloc_free(entry);
 660                         break;
 661                 }
 662         }
 663
 664         entry = talloc(NULL, struct lp_stored_option);
 665         if (!entry) {
 666                 return false;
 667         }
 668
 669         entry->label = talloc_strdup(entry, pszParmName);
 670         if (!entry->label) {
 671                 talloc_free(entry);
 672                 return false;
 673         }
 674
 675         entry->value = talloc_strdup(entry, pszParmValue);
 676         if (!entry->value) {
 677                 talloc_free(entry);
 678                 return false;
 679         }
 680
 681         DLIST_ADD_END(stored_options, entry, struct lp_stored_option);
 682
 683         return true;
 684 }
 685
 686 static bool apply_lp_set_cmdline(void)
 687 {
 688         struct lp_stored_option *entry = NULL;
 689         for (entry = stored_options; entry != NULL; entry = entry->next) {
 690                 if (!lp_set_cmdline_helper(entry->label, entry->value, false)) {
 691                         DEBUG(0, ("Failed to re-apply cmdline parameter %s = %s\n",
 692                                   entry->label, entry->value));
 693                         return false;
 694                 }
 695         }
 696         return true;
 697 }
 698
 699 /***************************************************************************
 700  Initialise the global parameter structure.
 701 ***************************************************************************/
 702
 703 static void init_globals(bool reinit_globals)
 704 {
 705         static bool done_init = false;
 706         char *s = NULL;
 707         int i;
 708
 709         /* If requested to initialize only once and we've already done it... */
 710         if (!reinit_globals && done_init) {
 711                 /* ... then we have nothing more to do */
 712                 return;
 713         }
 714
 715         if (!done_init) {
 716                 /* The logfile can be set before this is invoked. Free it if so. */
 717                 if (Globals.logfile != NULL) {
 718                         string_free(&Globals.logfile);
 719                         Globals.logfile = NULL;
 720                 }
 721                 done_init = true;
 722         } else {
 723                 free_global_parameters();
 724         }
 725
 726         /* This memset and the free_global_parameters() above will
 727          * wipe out smb.conf options set with lp_set_cmdline().  The
 728          * apply_lp_set_cmdline() call puts these values back in the
 729          * table once the defaults are set */
 730         ZERO_STRUCT(Globals);
 731
 732         Globals.ctx = talloc_new(NULL);
 733
 734         for (i = 0; parm_table[i].label; i++) {
 735                 if ((parm_table[i].type == P_STRING ||
 736                      parm_table[i].type == P_USTRING))
 737                 {
 738                         string_set((char **)lp_parm_ptr(NULL, &parm_table[i]), "");
 739                 }
 740         }
 741
 742
 743         string_set(&sDefault.fstype, FSTYPE_STRING);
 744         string_set(&sDefault.szPrintjobUsername, "%U");
 745
 746         init_printer_values(&sDefault);
 747
 748
 749         DEBUG(3, ("Initialising global parameters\n"));
 750
 751         /* Must manually force to upper case here, as this does not go via the handler */
 752         string_set(&Globals.szNetbiosName, myhostname_upper());
 753
 754         string_set(&Globals.szSMBPasswdFile, get_dyn_SMB_PASSWD_FILE());
 755         string_set(&Globals.szPrivateDir, get_dyn_PRIVATE_DIR());
 756
 757         /* use the new 'hash2' method by default, with a prefix of 1 */
 758         string_set(&Globals.szManglingMethod, "hash2");
 759         Globals.mangle_prefix = 1;
 760
 761         string_set(&Globals.szGuestaccount, GUEST_ACCOUNT);
 762
 763         /* using UTF8 by default allows us to support all chars */
 764         string_set(&Globals.unix_charset, DEFAULT_UNIX_CHARSET);
 765
 766         /* Use codepage 850 as a default for the dos character set */
 767         string_set(&Globals.dos_charset, DEFAULT_DOS_CHARSET);
 768
 769         /*
 770          * Allow the default PASSWD_CHAT to be overridden in local.h.
 771          */
 772         string_set(&Globals.szPasswdChat, DEFAULT_PASSWD_CHAT);
 773
 774         string_set(&Globals.szWorkgroup, DEFAULT_WORKGROUP);
 775
 776         string_set(&Globals.szPasswdProgram, "");
 777         string_set(&Globals.szLockDir, get_dyn_LOCKDIR());
 778         string_set(&Globals.szStateDir, get_dyn_STATEDIR());
 779         string_set(&Globals.szCacheDir, get_dyn_CACHEDIR());
 780         string_set(&Globals.szPidDir, get_dyn_PIDDIR());
 781         string_set(&Globals.nbt_client_socket_address, "0.0.0.0");
 782         /*
 783          * By default support explicit binding to broadcast
 784          * addresses.
 785          */
 786         Globals.bNmbdBindExplicitBroadcast = true;
 787
 788         if (asprintf(&s, "Samba %s", samba_version_string()) < 0) {
 789                 smb_panic("init_globals: ENOMEM");
 790         }
 791         string_set(&Globals.szServerString, s);
 792         SAFE_FREE(s);
 793 #ifdef DEVELOPER
 794         string_set(&Globals.szPanicAction, "/bin/sleep 999999999");
 795 #endif
 796
 797         string_set(&Globals.socket_options, DEFAULT_SOCKET_OPTIONS);
 798
 799         string_set(&Globals.szLogonDrive, "");
 800         /* %N is the NIS auto.home server if -DAUTOHOME is used, else same as %L */
 801         string_set(&Globals.szLogonHome, "\\\\%N\\%U");
 802         string_set(&Globals.szLogonPath, "\\\\%N\\%U\\profile");
 803
 804         Globals.szNameResolveOrder = (const char **)str_list_make_v3(NULL, "lmhosts wins host bcast", NULL);
 805         string_set(&Globals.szPasswordServer, "*");
 806
 807         Globals.AlgorithmicRidBase = BASE_RID;
 808
 809         Globals.bLoadPrinters = true;
 810         Globals.PrintcapCacheTime = 750;        /* 12.5 minutes */
 811
 812         Globals.ConfigBackend = config_backend;
 813         Globals.server_role = ROLE_AUTO;
 814
 815         /* Was 65535 (0xFFFF). 0x4101 matches W2K and causes major speed improvements... */
 816         /* Discovered by 2 days of pain by Don McCall @ HP :-). */
 817         Globals.max_xmit = 0x4104;
 818         Globals.max_mux = 50;   /* This is *needed* for profile support. */
 819         Globals.lpqcachetime = 30;      /* changed to handle large print servers better -- jerry */
 820         Globals.bDisableSpoolss = false;
 821         Globals.iMaxSmbdProcesses = 0;/* no limit specified */
 822         Globals.pwordlevel = 0;
 823         Globals.unamelevel = 0;
 824         Globals.deadtime = 0;
 825         Globals.getwd_cache = true;
 826         Globals.bLargeReadwrite = true;
 827         Globals.max_log_size = 5000;
 828         Globals.max_open_files = max_open_files();
 829         Globals.open_files_db_hash_size = SMB_OPEN_DATABASE_TDB_HASH_SIZE;
 830         Globals.srv_maxprotocol = PROTOCOL_SMB3_00;
 831         Globals.srv_minprotocol = PROTOCOL_LANMAN1;
 832         Globals.security = SEC_USER;
 833         Globals.bEncryptPasswords = true;
 834         Globals.clientSchannel = Auto;
 835         Globals.serverSchannel = Auto;
 836         Globals.bReadRaw = true;
 837         Globals.bWriteRaw = true;
 838         Globals.bNullPasswords = false;
 839         Globals.bObeyPamRestrictions = false;
 840         Globals.syslog = 1;
 841         Globals.bSyslogOnly = false;
 842         Globals.bTimestampLogs = true;
 843         string_set(&Globals.loglevel, "0");
 844         Globals.bDebugPrefixTimestamp = false;
 845         Globals.bDebugHiresTimestamp = true;
 846         Globals.bDebugPid = false;
 847         Globals.bDebugUid = false;
 848         Globals.bDebugClass = false;
 849         Globals.bEnableCoreFiles = true;
 850         Globals.max_ttl = 60 * 60 * 24 * 3;     /* 3 days default. */
 851         Globals.max_wins_ttl = 60 * 60 * 24 * 6;        /* 6 days default. */
 852         Globals.min_wins_ttl = 60 * 60 * 6;     /* 6 hours default. */
 853         Globals.machine_password_timeout = 60 * 60 * 24 * 7;    /* 7 days default. */
 854         Globals.lm_announce = Auto;     /* = Auto: send only if LM clients found */
 855         Globals.lm_interval = 60;
 856 #if (defined(HAVE_NETGROUP) && defined(WITH_AUTOMOUNT))
 857         Globals.bNISHomeMap = false;
 858 #ifdef WITH_NISPLUS_HOME
 859         string_set(&Globals.szNISHomeMapName, "auto_home.org_dir");
 860 #else
 861         string_set(&Globals.szNISHomeMapName, "auto.home");
 862 #endif
 863 #endif
 864         Globals.bTimeServer = false;
 865         Globals.bBindInterfacesOnly = false;
 866         Globals.bUnixPasswdSync = false;
 867         Globals.bPamPasswordChange = false;
 868         Globals.bPasswdChatDebug = false;
 869         Globals.iPasswdChatTimeout = 2; /* 2 second default. */
 870         Globals.bNTPipeSupport = true;  /* Do NT pipes by default. */
 871         Globals.bNTStatusSupport = true; /* Use NT status by default. */
 872         Globals.bStatCache = true;      /* use stat cache by default */
 873         Globals.iMaxStatCacheSize = 256; /* 256k by default */
 874         Globals.restrict_anonymous = 0;
 875         Globals.bClientLanManAuth = false;      /* Do NOT use the LanMan hash if it is available */
 876         Globals.bClientPlaintextAuth = false;   /* Do NOT use a plaintext password even if is requested by the server */
 877         Globals.bLanmanAuth = false;    /* Do NOT use the LanMan hash, even if it is supplied */
 878         Globals.bNTLMAuth = true;       /* Do use NTLMv1 if it is supplied by the client (otherwise NTLMv2) */
 879         Globals.bClientNTLMv2Auth = true; /* Client should always use use NTLMv2, as we can't tell that the server supports it, but most modern servers do */
 880         /* Note, that we will also use NTLM2 session security (which is different), if it is available */
 881
 882         Globals.map_to_guest = 0;       /* By Default, "Never" */
 883         Globals.oplock_break_wait_time = 0;     /* By Default, 0 msecs. */
 884         Globals.enhanced_browsing = true;
 885         Globals.iLockSpinTime = WINDOWS_MINIMUM_LOCK_TIMEOUT_MS; /* msec. */
 886 #ifdef MMAP_BLACKLIST
 887         Globals.bUseMmap = false;
 888 #else
 889         Globals.bUseMmap = true;
 890 #endif
 891         Globals.bUnicode = true;
 892         Globals.bUnixExtensions = true;
 893         Globals.bResetOnZeroVC = false;
 894         Globals.bLogWriteableFilesOnExit = false;
 895         Globals.bCreateKrb5Conf = true;
 896         Globals.winbindMaxDomainConnections = 1;
 897
 898         /* hostname lookups can be very expensive and are broken on
 899            a large number of sites (tridge) */
 900         Globals.bHostnameLookups = false;
 901
 902         string_set(&Globals.passdb_backend, "tdbsam");
 903         string_set(&Globals.szLdapSuffix, "");
 904         string_set(&Globals.szLdapMachineSuffix, "");
 905         string_set(&Globals.szLdapUserSuffix, "");
 906         string_set(&Globals.szLdapGroupSuffix, "");
 907         string_set(&Globals.szLdapIdmapSuffix, "");
 908
 909         string_set(&Globals.szLdapAdminDn, "");
 910         Globals.ldap_ssl = LDAP_SSL_START_TLS;
 911         Globals.ldap_ssl_ads = false;
 912         Globals.ldap_deref = -1;
 913         Globals.ldap_passwd_sync = LDAP_PASSWD_SYNC_OFF;
 914         Globals.ldap_delete_dn = false;
 915         Globals.ldap_replication_sleep = 1000; /* wait 1 sec for replication */
 916         Globals.ldap_follow_referral = Auto;
 917         Globals.ldap_timeout = LDAP_DEFAULT_TIMEOUT;
 918         Globals.ldap_connection_timeout = LDAP_CONNECTION_DEFAULT_TIMEOUT;
 919         Globals.ldap_page_size = LDAP_PAGE_SIZE;
 920
 921         Globals.ldap_debug_level = 0;
 922         Globals.ldap_debug_threshold = 10;
 923
 924         /* This is what we tell the afs client. in reality we set the token
 925          * to never expire, though, when this runs out the afs client will
 926          * forget the token. Set to 0 to get NEVERDATE.*/
 927         Globals.iAfsTokenLifetime = 604800;
 928         Globals.cups_connection_timeout = CUPS_DEFAULT_CONNECTION_TIMEOUT;
 929
 930 /* these parameters are set to defaults that are more appropriate
 931    for the increasing samba install base:
 932
 933    as a member of the workgroup, that will possibly become a
 934    _local_ master browser (lm = true).  this is opposed to a forced
 935    local master browser startup (pm = true).
 936
 937    doesn't provide WINS server service by default (wsupp = false),
 938    and doesn't provide domain master browser services by default, either.
 939
 940 */
 941
 942         Globals.bMsAddPrinterWizard = true;
 943         Globals.os_level = 20;
 944         Globals.bLocalMaster = true;
 945         Globals.domain_master = Auto;   /* depending on bDomainLogons */
 946         Globals.bDomainLogons = false;
 947         Globals.bBrowseList = true;
 948         Globals.bWINSsupport = false;
 949         Globals.bWINSproxy = false;
 950
 951         TALLOC_FREE(Globals.szInitLogonDelayedHosts);
 952         Globals.InitLogonDelay = 100; /* 100 ms default delay */
 953
 954         Globals.bWINSdnsProxy = true;
 955
 956         Globals.bAllowTrustedDomains = true;
 957         string_set(&Globals.szIdmapBackend, "tdb");
 958
 959         string_set(&Globals.szTemplateShell, "/bin/false");
 960         string_set(&Globals.szTemplateHomedir, "/home/%D/%U");
 961         string_set(&Globals.szWinbindSeparator, "\\");
 962
 963         string_set(&Globals.szCupsServer, "");
 964         string_set(&Globals.szIPrintServer, "");
 965
 966 #ifdef CLUSTER_SUPPORT
 967         string_set(&Globals.ctdbdSocket, CTDB_PATH);
 968 #else
 969         string_set(&Globals.ctdbdSocket, "");
 970 #endif
 971
 972         Globals.szClusterAddresses = NULL;
 973         Globals.clustering = false;
 974         Globals.ctdb_timeout = 0;
 975         Globals.ctdb_locktime_warn_threshold = 0;
 976
 977         Globals.winbind_cache_time = 300;       /* 5 minutes */
 978         Globals.winbind_reconnect_delay = 30;   /* 30 seconds */
 979         Globals.winbind_max_clients = 200;
 980         Globals.bWinbindEnumUsers = false;
 981         Globals.bWinbindEnumGroups = false;
 982         Globals.bWinbindUseDefaultDomain = false;
 983         Globals.bWinbindTrustedDomainsOnly = false;
 984         Globals.bWinbindNestedGroups = true;
 985         Globals.winbind_expand_groups = 1;
 986         Globals.szWinbindNssInfo = (const char **)str_list_make_v3(NULL, "template", NULL);
 987         Globals.bWinbindRefreshTickets = false;
 988         Globals.bWinbindOfflineLogon = false;
 989
 990         Globals.iIdmapCacheTime = 86400 * 7; /* a week by default */
 991         Globals.iIdmapNegativeCacheTime = 120; /* 2 minutes by default */
 992
 993         Globals.bPassdbExpandExplicit = false;
 994
 995         Globals.name_cache_timeout = 660; /* In seconds */
 996
 997         Globals.bUseSpnego = true;
 998         Globals.bClientUseSpnego = true;
 999
1000         Globals.client_signing = SMB_SIGNING_DEFAULT;
1001         Globals.server_signing = SMB_SIGNING_DEFAULT;
1002
1003         Globals.bDeferSharingViolations = true;
1004         Globals.smb_ports = (const char **)str_list_make_v3(NULL, SMB_PORTS, NULL);
1005
1006         Globals.bEnablePrivileges = true;
1007         Globals.bHostMSDfs        = true;
1008         Globals.bASUSupport       = false;
1009
1010         /* User defined shares. */
1011         if (asprintf(&s, "%s/usershares", get_dyn_STATEDIR()) < 0) {
1012                 smb_panic("init_globals: ENOMEM");
1013         }
1014         string_set(&Globals.szUsersharePath, s);
1015         SAFE_FREE(s);
1016         string_set(&Globals.szUsershareTemplateShare, "");
1017         Globals.iUsershareMaxShares = 0;
1018         /* By default disallow sharing of directories not owned by the sharer. */
1019         Globals.bUsershareOwnerOnly = true;
1020         /* By default disallow guest access to usershares. */
1021         Globals.bUsershareAllowGuests = false;
1022
1023         Globals.iKeepalive = DEFAULT_KEEPALIVE;
1024
1025         /* By default no shares out of the registry */
1026         Globals.bRegistryShares = false;
1027
1028         Globals.iminreceivefile = 0;
1029
1030         Globals.bMapUntrustedToDomain = false;
1031         Globals.bMulticastDnsRegister = true;
1032
1033         Globals.ismb2_max_read = DEFAULT_SMB2_MAX_READ;
1034         Globals.ismb2_max_write = DEFAULT_SMB2_MAX_WRITE;
1035         Globals.ismb2_max_trans = DEFAULT_SMB2_MAX_TRANSACT;
1036         Globals.ismb2_max_credits = DEFAULT_SMB2_MAX_CREDITS;
1037
1038         string_set(&Globals.ncalrpc_dir, get_dyn_NCALRPCDIR());
1039
1040         /* Now put back the settings that were set with lp_set_cmdline() */
1041         apply_lp_set_cmdline();
1042 }
1043
1044 /*******************************************************************
1045  Convenience routine to grab string parameters into talloced memory
1046  and run standard_sub_basic on them. The buffers can be written to by
1047  callers without affecting the source string.
1048 ********************************************************************/
1049
1050 static char *lp_string(TALLOC_CTX *ctx, const char *s)
1051 {
1052         char *ret;
1053
1054         /* The follow debug is useful for tracking down memory problems
1055            especially if you have an inner loop that is calling a lp_*()
1056            function that returns a string.  Perhaps this debug should be
1057            present all the time? */
1058
1059 #if 0
1060         DEBUG(10, ("lp_string(%s)\n", s));
1061 #endif
1062         if (!s) {
1063                 return NULL;
1064         }
1065
1066         ret = talloc_sub_basic(ctx,
1067                         get_current_username(),
1068                         current_user_info.domain,
1069                         s);
1070         if (trim_char(ret, '\"', '\"')) {
1071                 if (strchr(ret,'\"') != NULL) {
1072                         TALLOC_FREE(ret);
1073                         ret = talloc_sub_basic(ctx,
1074                                         get_current_username(),
1075                                         current_user_info.domain,
1076                                         s);
1077                 }
1078         }
1079         return ret;
1080 }
1081
1082 /*
1083    In this section all the functions that are used to access the
1084    parameters from the rest of the program are defined
1085 */
1086
1087 #define FN_GLOBAL_STRING(fn_name,ptr) \
1088 char *lp_ ## fn_name(TALLOC_CTX *ctx) {return(lp_string((ctx), *(char **)(&Globals.ptr) ? *(char **)(&Globals.ptr) : ""));}
1089 #define FN_GLOBAL_CONST_STRING(fn_name,ptr) \
1090  const char *lp_ ## fn_name(void) {return(*(const char * const *)(&Globals.ptr) ? *(const char * const *)(&Globals.ptr) : "");}
1091 #define FN_GLOBAL_LIST(fn_name,ptr) \
1092  const char **lp_ ## fn_name(void) {return(*(const char ***)(&Globals.ptr));}
1093 #define FN_GLOBAL_BOOL(fn_name,ptr) \
1094  bool lp_ ## fn_name(void) {return(*(bool *)(&Globals.ptr));}
1095 #define FN_GLOBAL_CHAR(fn_name,ptr) \
1096  char lp_ ## fn_name(void) {return(*(char *)(&Globals.ptr));}
1097 #define FN_GLOBAL_INTEGER(fn_name,ptr) \
1098  int lp_ ## fn_name(void) {return(*(int *)(&Globals.ptr));}
1099
1100 #define FN_LOCAL_STRING(fn_name,val) \
1101 char *lp_ ## fn_name(TALLOC_CTX *ctx,int i) {return(lp_string((ctx), (LP_SNUM_OK(i) && ServicePtrs[(i)]->val) ? ServicePtrs[(i)]->val : sDefault.val));}
1102 #define FN_LOCAL_CONST_STRING(fn_name,val) \
1103  const char *lp_ ## fn_name(int i) {return (const char *)((LP_SNUM_OK(i) && ServicePtrs[(i)]->val) ? ServicePtrs[(i)]->val : sDefault.val);}
1104 #define FN_LOCAL_LIST(fn_name,val) \
1105  const char **lp_ ## fn_name(int i) {return(const char **)(LP_SNUM_OK(i)? ServicePtrs[(i)]->val : sDefault.val);}
1106 #define FN_LOCAL_BOOL(fn_name,val) \
1107  bool lp_ ## fn_name(int i) {return(bool)(LP_SNUM_OK(i)? ServicePtrs[(i)]->val : sDefault.val);}
1108 #define FN_LOCAL_INTEGER(fn_name,val) \
1109  int lp_ ## fn_name(int i) {return(LP_SNUM_OK(i)? ServicePtrs[(i)]->val : sDefault.val);}
1110
1111 #define FN_LOCAL_PARM_BOOL(fn_name,val) \
1112  bool lp_ ## fn_name(const struct share_params *p) {return(bool)(LP_SNUM_OK(p->service)? ServicePtrs[(p->service)]->val : sDefault.val);}
1113 #define FN_LOCAL_PARM_INTEGER(fn_name,val) \
1114  int lp_ ## fn_name(const struct share_params *p) {return(LP_SNUM_OK(p->service)? ServicePtrs[(p->service)]->val : sDefault.val);}
1115 #define FN_LOCAL_CHAR(fn_name,val) \
1116  char lp_ ## fn_name(const struct share_params *p) {return(LP_SNUM_OK(p->service)? ServicePtrs[(p->service)]->val : sDefault.val);}
1117
1118
1119 static FN_GLOBAL_BOOL(_readraw, bReadRaw)
1120 static FN_GLOBAL_BOOL(_writeraw, bWriteRaw)
1121
1122 /* If lp_statedir() and lp_cachedir() are explicitely set during the
1123  * build process or in smb.conf, we use that value.  Otherwise they
1124  * default to the value of lp_lockdir(). */
1125 const char *lp_statedir(void) {
1126         if ((strcmp(get_dyn_STATEDIR(), get_dyn_LOCKDIR()) != 0) ||
1127             (strcmp(get_dyn_STATEDIR(), Globals.szStateDir) != 0))
1128                 return(*(char **)(&Globals.szStateDir) ?
1129                        *(char **)(&Globals.szStateDir) : "");
1130         else
1131                 return(*(char **)(&Globals.szLockDir) ?
1132                        *(char **)(&Globals.szLockDir) : "");
1133 }
1134 const char *lp_cachedir(void) {
1135         if ((strcmp(get_dyn_CACHEDIR(), get_dyn_LOCKDIR()) != 0) ||
1136             (strcmp(get_dyn_CACHEDIR(), Globals.szCacheDir) != 0))
1137                 return(*(char **)(&Globals.szCacheDir) ?
1138                        *(char **)(&Globals.szCacheDir) : "");
1139         else
1140                 return(*(char **)(&Globals.szLockDir) ?
1141                        *(char **)(&Globals.szLockDir) : "");
1142 }
1143 static FN_GLOBAL_INTEGER(winbind_max_domain_connections_int,
1144                   winbindMaxDomainConnections)
1145
1146 int lp_winbind_max_domain_connections(void)
1147 {
1148         if (lp_winbind_offline_logon() &&
1149             lp_winbind_max_domain_connections_int() > 1) {
1150                 DEBUG(1, ("offline logons active, restricting max domain "
1151                           "connections to 1\n"));
1152                 return 1;
1153         }
1154         return MAX(1, lp_winbind_max_domain_connections_int());
1155 }
1156
1157 int lp_smb2_max_credits(void)
1158 {
1159         if (Globals.ismb2_max_credits == 0) {
1160                 Globals.ismb2_max_credits = DEFAULT_SMB2_MAX_CREDITS;
1161         }
1162         return Globals.ismb2_max_credits;
1163 }
1164 int lp_cups_encrypt(void)
1165 {
1166         int result = 0;
1167 #ifdef HAVE_HTTPCONNECTENCRYPT
1168         switch (Globals.CupsEncrypt) {
1169                 case Auto:
1170                         result = HTTP_ENCRYPT_REQUIRED;
1171                         break;
1172                 case true:
1173                         result = HTTP_ENCRYPT_ALWAYS;
1174                         break;
1175                 case false:
1176                         result = HTTP_ENCRYPT_NEVER;
1177                         break;
1178         }
1179 #endif
1180         return result;
1181 }
1182
1183 /* These functions remain in source3/param for now */
1184
1185 FN_GLOBAL_STRING(configfile, szConfigFile)
1186
1187 #include "lib/param/param_functions.c"
1188
1189 FN_LOCAL_STRING(servicename, szService)
1190 FN_LOCAL_CONST_STRING(const_servicename, szService)
1191
1192 /* local prototypes */
1193
1194 static int map_parameter_canonical(const char *pszParmName, bool *inverse);
1195 static const char *get_boolean(bool bool_value);
1196 static int getservicebyname(const char *pszServiceName,
1197                             struct loadparm_service *pserviceDest);
1198 static void copy_service(struct loadparm_service *pserviceDest,
1199                          struct loadparm_service *pserviceSource,
1200                          struct bitmap *pcopymapDest);
1201 static bool do_parameter(const char *pszParmName, const char *pszParmValue,
1202                          void *userdata);
1203 static bool do_section(const char *pszSectionName, void *userdata);
1204 static void init_copymap(struct loadparm_service *pservice);
1205 static bool hash_a_service(const char *name, int number);
1206 static void free_service_byindex(int iService);
1207 static void show_parameter(int parmIndex);
1208 static bool is_synonym_of(int parm1, int parm2, bool *inverse);
1209
1210 /*
1211  * This is a helper function for parametrical options support.  It returns a
1212  * pointer to parametrical option value if it exists or NULL otherwise. Actual
1213  * parametrical functions are quite simple
1214  */
1215 static struct parmlist_entry *get_parametrics_by_service(struct loadparm_service *service, const char *type,
1216                                                            const char *option)
1217 {
1218         bool global_section = false;
1219         char* param_key;
1220         struct parmlist_entry *data;
1221
1222         if (service == NULL) {
1223                 data = Globals.param_opt;
1224                 global_section = true;
1225         } else {
1226                 data = service->param_opt;
1227         }
1228
1229         if (asprintf(&param_key, "%s:%s", type, option) == -1) {
1230                 DEBUG(0,("asprintf failed!\n"));
1231                 return NULL;
1232         }
1233
1234         while (data) {
1235                 if (strwicmp(data->key, param_key) == 0) {
1236                         string_free(&param_key);
1237                         return data;
1238                 }
1239                 data = data->next;
1240         }
1241
1242         if (!global_section) {
1243                 /* Try to fetch the same option but from globals */
1244                 /* but only if we are not already working with Globals */
1245                 data = Globals.param_opt;
1246                 while (data) {
1247                         if (strwicmp(data->key, param_key) == 0) {
1248                                 string_free(&param_key);
1249                                 return data;
1250                         }
1251                         data = data->next;
1252                 }
1253         }
1254
1255         string_free(&param_key);
1256
1257         return NULL;
1258 }
1259
1260 /*
1261  * This is a helper function for parametrical options support.  It returns a
1262  * pointer to parametrical option value if it exists or NULL otherwise. Actual
1263  * parametrical functions are quite simple
1264  */
1265 static struct parmlist_entry *get_parametrics(int snum, const char *type,
1266                                                 const char *option)
1267 {
1268         if (snum >= iNumServices) return NULL;
1269
1270         if (snum < 0) {
1271                 return get_parametrics_by_service(NULL, type, option);
1272         } else {
1273                 return get_parametrics_by_service(ServicePtrs[snum], type, option);
1274         }
1275 }
1276
1277
1278 #define MISSING_PARAMETER(name) \
1279     DEBUG(0, ("%s(): value is NULL or empty!\n", #name))
1280
1281 /*******************************************************************
1282 convenience routine to return int parameters.
1283 ********************************************************************/
1284 static int lp_int(const char *s)
1285 {
1286
1287         if (!s || !*s) {
1288                 MISSING_PARAMETER(lp_int);
1289                 return (-1);
1290         }
1291
1292         return (int)strtol(s, NULL, 0);
1293 }
1294
1295 /*******************************************************************
1296 convenience routine to return unsigned long parameters.
1297 ********************************************************************/
1298 static unsigned long lp_ulong(const char *s)
1299 {
1300
1301         if (!s || !*s) {
1302                 MISSING_PARAMETER(lp_ulong);
1303                 return (0);
1304         }
1305
1306         return strtoul(s, NULL, 0);
1307 }
1308
1309 /*******************************************************************
1310 convenience routine to return boolean parameters.
1311 ********************************************************************/
1312 static bool lp_bool(const char *s)
1313 {
1314         bool ret = false;
1315
1316         if (!s || !*s) {
1317                 MISSING_PARAMETER(lp_bool);
1318                 return false;
1319         }
1320
1321         if (!set_boolean(s, &ret)) {
1322                 DEBUG(0,("lp_bool(%s): value is not boolean!\n",s));
1323                 return false;
1324         }
1325
1326         return ret;
1327 }
1328
1329 /*******************************************************************
1330 convenience routine to return enum parameters.
1331 ********************************************************************/
1332 static int lp_enum(const char *s,const struct enum_list *_enum)
1333 {
1334         int i;
1335
1336         if (!s || !*s || !_enum) {
1337                 MISSING_PARAMETER(lp_enum);
1338                 return (-1);
1339         }
1340
1341         for (i=0; _enum[i].name; i++) {
1342                 if (strequal(_enum[i].name,s))
1343                         return _enum[i].value;
1344         }
1345
1346         DEBUG(0,("lp_enum(%s,enum): value is not in enum_list!\n",s));
1347         return (-1);
1348 }
1349
1350 #undef MISSING_PARAMETER
1351
1352 /* Return parametric option from a given service. Type is a part of option before ':' */
1353 /* Parametric option has following syntax: 'Type: option = value' */
1354 char *lp_parm_talloc_string(TALLOC_CTX *ctx, int snum, const char *type, const char *option, const char *def)
1355 {
1356         struct parmlist_entry *data = get_parametrics(snum, type, option);
1357
1358         if (data == NULL||data->value==NULL) {
1359                 if (def) {
1360                         return lp_string(ctx, def);
1361                 } else {
1362                         return NULL;
1363                 }
1364         }
1365
1366         return lp_string(ctx, data->value);
1367 }
1368
1369 /* Return parametric option from a given service. Type is a part of option before ':' */
1370 /* Parametric option has following syntax: 'Type: option = value' */
1371 const char *lp_parm_const_string(int snum, const char *type, const char *option, const char *def)
1372 {
1373         struct parmlist_entry *data = get_parametrics(snum, type, option);
1374
1375         if (data == NULL||data->value==NULL)
1376                 return def;
1377
1378         return data->value;
1379 }
1380
1381 const char *lp_parm_const_string_service(struct loadparm_service *service, const char *type, const char *option)
1382 {
1383         struct parmlist_entry *data = get_parametrics_by_service(service, type, option);
1384
1385         if (data == NULL||data->value==NULL)
1386                 return NULL;
1387
1388         return data->value;
1389 }
1390
1391
1392 /* Return parametric option from a given service. Type is a part of option before ':' */
1393 /* Parametric option has following syntax: 'Type: option = value' */
1394
1395 const char **lp_parm_string_list(int snum, const char *type, const char *option, const char **def)
1396 {
1397         struct parmlist_entry *data = get_parametrics(snum, type, option);
1398
1399         if (data == NULL||data->value==NULL)
1400                 return (const char **)def;
1401
1402         if (data->list==NULL) {
1403                 data->list = str_list_make_v3(NULL, data->value, NULL);
1404         }
1405
1406         return (const char **)data->list;
1407 }
1408
1409 /* Return parametric option from a given service. Type is a part of option before ':' */
1410 /* Parametric option has following syntax: 'Type: option = value' */
1411
1412 int lp_parm_int(int snum, const char *type, const char *option, int def)
1413 {
1414         struct parmlist_entry *data = get_parametrics(snum, type, option);
1415
1416         if (data && data->value && *data->value)
1417                 return lp_int(data->value);
1418
1419         return def;
1420 }
1421
1422 /* Return parametric option from a given service. Type is a part of option before ':' */
1423 /* Parametric option has following syntax: 'Type: option = value' */
1424
1425 unsigned long lp_parm_ulong(int snum, const char *type, const char *option, unsigned long def)
1426 {
1427         struct parmlist_entry *data = get_parametrics(snum, type, option);
1428
1429         if (data && data->value && *data->value)
1430                 return lp_ulong(data->value);
1431
1432         return def;
1433 }
1434
1435 /* Return parametric option from a given service. Type is a part of option before ':' */
1436 /* Parametric option has following syntax: 'Type: option = value' */
1437
1438 bool lp_parm_bool(int snum, const char *type, const char *option, bool def)
1439 {
1440         struct parmlist_entry *data = get_parametrics(snum, type, option);
1441
1442         if (data && data->value && *data->value)
1443                 return lp_bool(data->value);
1444
1445         return def;
1446 }
1447
1448 /* Return parametric option from a given service. Type is a part of option before ':' */
1449 /* Parametric option has following syntax: 'Type: option = value' */
1450
1451 int lp_parm_enum(int snum, const char *type, const char *option,
1452                  const struct enum_list *_enum, int def)
1453 {
1454         struct parmlist_entry *data = get_parametrics(snum, type, option);
1455
1456         if (data && data->value && *data->value && _enum)
1457                 return lp_enum(data->value, _enum);
1458
1459         return def;
1460 }
1461
1462
1463 /***************************************************************************
1464  Initialise a service to the defaults.
1465 ***************************************************************************/
1466
1467 static void init_service(struct loadparm_service *pservice)
1468 {
1469         memset((char *)pservice, '\0', sizeof(struct loadparm_service));
1470         copy_service(pservice, &sDefault, NULL);
1471 }
1472
1473
1474 /**
1475  * free a param_opts structure.
1476  * param_opts handling should be moved to talloc;
1477  * then this whole functions reduces to a TALLOC_FREE().
1478  */
1479
1480 static void free_param_opts(struct parmlist_entry **popts)
1481 {
1482         struct parmlist_entry *opt, *next_opt;
1483
1484         if (*popts != NULL) {
1485                 DEBUG(5, ("Freeing parametrics:\n"));
1486         }
1487         opt = *popts;
1488         while (opt != NULL) {
1489                 string_free(&opt->key);
1490                 string_free(&opt->value);
1491                 TALLOC_FREE(opt->list);
1492                 next_opt = opt->next;
1493                 SAFE_FREE(opt);
1494                 opt = next_opt;
1495         }
1496         *popts = NULL;
1497 }
1498
1499 /***************************************************************************
1500  Free the dynamically allocated parts of a service struct.
1501 ***************************************************************************/
1502
1503 static void free_service(struct loadparm_service *pservice)
1504 {
1505         if (!pservice)
1506                 return;
1507
1508         if (pservice->szService)
1509                 DEBUG(5, ("free_service: Freeing service %s\n",
1510                        pservice->szService));
1511
1512         free_parameters(pservice);
1513
1514         string_free(&pservice->szService);
1515         TALLOC_FREE(pservice->copymap);
1516
1517         free_param_opts(&pservice->param_opt);
1518
1519         ZERO_STRUCTP(pservice);
1520 }
1521
1522
1523 /***************************************************************************
1524  remove a service indexed in the ServicePtrs array from the ServiceHash
1525  and free the dynamically allocated parts
1526 ***************************************************************************/
1527
1528 static void free_service_byindex(int idx)
1529 {
1530         if ( !LP_SNUM_OK(idx) )
1531                 return;
1532
1533         ServicePtrs[idx]->valid = false;
1534         invalid_services[num_invalid_services++] = idx;
1535
1536         /* we have to cleanup the hash record */
1537
1538         if (ServicePtrs[idx]->szService) {
1539                 char *canon_name = canonicalize_servicename(
1540                         talloc_tos(),
1541                         ServicePtrs[idx]->szService );
1542
1543                 dbwrap_delete_bystring(ServiceHash, canon_name );
1544                 TALLOC_FREE(canon_name);
1545         }
1546
1547         free_service(ServicePtrs[idx]);
1548         talloc_free_children(ServicePtrs[idx]);
1549 }
1550
1551 /***************************************************************************
1552  Add a new service to the services array initialising it with the given
1553  service.
1554 ***************************************************************************/
1555
1556 static int add_a_service(const struct loadparm_service *pservice, const char *name)
1557 {
1558         int i;
1559         struct loadparm_service tservice;
1560         int num_to_alloc = iNumServices + 1;
1561
1562         tservice = *pservice;
1563
1564         /* it might already exist */
1565         if (name) {
1566                 i = getservicebyname(name, NULL);
1567                 if (i >= 0) {
1568                         return (i);
1569                 }
1570         }
1571
1572         /* find an invalid one */
1573         i = iNumServices;
1574         if (num_invalid_services > 0) {
1575                 i = invalid_services[--num_invalid_services];
1576         }
1577
1578         /* if not, then create one */
1579         if (i == iNumServices) {
1580                 struct loadparm_service **tsp;
1581                 int *tinvalid;
1582
1583                 tsp = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(ServicePtrs, struct loadparm_service *, num_to_alloc);
1584                 if (tsp == NULL) {
1585                         DEBUG(0,("add_a_service: failed to enlarge ServicePtrs!\n"));
1586                         return (-1);
1587                 }
1588                 ServicePtrs = tsp;
1589                 ServicePtrs[iNumServices] = talloc(NULL, struct loadparm_service);
1590                 if (!ServicePtrs[iNumServices]) {
1591                         DEBUG(0,("add_a_service: out of memory!\n"));
1592                         return (-1);
1593                 }
1594                 iNumServices++;
1595
1596                 /* enlarge invalid_services here for now... */
1597                 tinvalid = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(invalid_services, int,
1598                                              num_to_alloc);
1599                 if (tinvalid == NULL) {
1600                         DEBUG(0,("add_a_service: failed to enlarge "
1601                                  "invalid_services!\n"));
1602                         return (-1);
1603                 }
1604                 invalid_services = tinvalid;
1605         } else {
1606                 free_service_byindex(i);
1607         }
1608
1609         ServicePtrs[i]->valid = true;
1610
1611         init_service(ServicePtrs[i]);
1612         copy_service(ServicePtrs[i], &tservice, NULL);
1613         if (name)
1614                 string_set(&ServicePtrs[i]->szService, name);
1615
1616         DEBUG(8,("add_a_service: Creating snum = %d for %s\n",
1617                 i, ServicePtrs[i]->szService));
1618
1619         if (!hash_a_service(ServicePtrs[i]->szService, i)) {
1620                 return (-1);
1621         }
1622
1623         return (i);
1624 }
1625
1626 /***************************************************************************
1627   Convert a string to uppercase and remove whitespaces.
1628 ***************************************************************************/
1629
1630 char *canonicalize_servicename(TALLOC_CTX *ctx, const char *src)
1631 {
1632         char *result;
1633
1634         if ( !src ) {
1635                 DEBUG(0,("canonicalize_servicename: NULL source name!\n"));
1636                 return NULL;
1637         }
1638
1639         result = talloc_strdup(ctx, src);
1640         SMB_ASSERT(result != NULL);
1641
1642         if (!strlower_m(result)) {
1643                 TALLOC_FREE(result);
1644                 return NULL;
1645         }
1646         return result;
1647 }
1648
1649 /***************************************************************************
1650   Add a name/index pair for the services array to the hash table.
1651 ***************************************************************************/
1652
1653 static bool hash_a_service(const char *name, int idx)
1654 {
1655         char *canon_name;
1656
1657         if ( !ServiceHash ) {
1658                 DEBUG(10,("hash_a_service: creating servicehash\n"));
1659                 ServiceHash = db_open_rbt(NULL);
1660                 if ( !ServiceHash ) {
1661                         DEBUG(0,("hash_a_service: open tdb servicehash failed!\n"));
1662                         return false;
1663                 }
1664         }
1665
1666         DEBUG(10,("hash_a_service: hashing index %d for service name %s\n",
1667                 idx, name));
1668
1669         canon_name = canonicalize_servicename(talloc_tos(), name );
1670
1671         dbwrap_store_bystring(ServiceHash, canon_name,
1672                               make_tdb_data((uint8 *)&idx, sizeof(idx)),
1673                               TDB_REPLACE);
1674
1675         TALLOC_FREE(canon_name);
1676
1677         return true;
1678 }
1679
1680 /***************************************************************************
1681  Add a new home service, with the specified home directory, defaults coming
1682  from service ifrom.
1683 ***************************************************************************/
1684
1685 bool lp_add_home(const char *pszHomename, int iDefaultService,
1686                  const char *user, const char *pszHomedir)
1687 {
1688         int i;
1689
1690         if (pszHomename == NULL || user == NULL || pszHomedir == NULL ||
1691                         pszHomedir[0] == '\0') {
1692                 return false;
1693         }
1694
1695         i = add_a_service(ServicePtrs[iDefaultService], pszHomename);
1696
1697         if (i < 0)
1698                 return false;
1699
1700         if (!(*(ServicePtrs[iDefaultService]->szPath))
1701             || strequal(ServicePtrs[iDefaultService]->szPath,
1702                         lp_pathname(talloc_tos(), GLOBAL_SECTION_SNUM))) {
1703                 string_set(&ServicePtrs[i]->szPath, pszHomedir);
1704         }
1705
1706         if (!(*(ServicePtrs[i]->comment))) {
1707                 char *comment = NULL;
1708                 if (asprintf(&comment, "Home directory of %s", user) < 0) {
1709                         return false;
1710                 }
1711                 string_set(&ServicePtrs[i]->comment, comment);
1712                 SAFE_FREE(comment);
1713         }
1714
1715         /* set the browseable flag from the global default */
1716
1717         ServicePtrs[i]->bBrowseable = sDefault.bBrowseable;
1718         ServicePtrs[i]->bAccessBasedShareEnum = sDefault.bAccessBasedShareEnum;
1719
1720         ServicePtrs[i]->autoloaded = true;
1721
1722         DEBUG(3, ("adding home's share [%s] for user '%s' at '%s'\n", pszHomename,
1723                user, ServicePtrs[i]->szPath ));
1724
1725         return true;
1726 }
1727
1728 /***************************************************************************
1729  Add a new service, based on an old one.
1730 ***************************************************************************/
1731
1732 int lp_add_service(const char *pszService, int iDefaultService)
1733 {
1734         if (iDefaultService < 0) {
1735                 return add_a_service(&sDefault, pszService);
1736         }
1737
1738         return (add_a_service(ServicePtrs[iDefaultService], pszService));
1739 }
1740
1741 /***************************************************************************
1742  Add the IPC service.
1743 ***************************************************************************/
1744
1745 static bool lp_add_ipc(const char *ipc_name, bool guest_ok)
1746 {
1747         char *comment = NULL;
1748         int i = add_a_service(&sDefault, ipc_name);
1749
1750         if (i < 0)
1751                 return false;
1752
1753         if (asprintf(&comment, "IPC Service (%s)",
1754                                 Globals.szServerString) < 0) {
1755                 return false;
1756         }
1757
1758         string_set(&ServicePtrs[i]->szPath, tmpdir());
1759         string_set(&ServicePtrs[i]->szUsername, "");
1760         string_set(&ServicePtrs[i]->comment, comment);
1761         string_set(&ServicePtrs[i]->fstype, "IPC");
1762         ServicePtrs[i]->iMaxConnections = 0;
1763         ServicePtrs[i]->bAvailable = true;
1764         ServicePtrs[i]->bRead_only = true;
1765         ServicePtrs[i]->bGuest_only = false;
1766         ServicePtrs[i]->bAdministrative_share = true;
1767         ServicePtrs[i]->bGuest_ok = guest_ok;
1768         ServicePtrs[i]->bPrint_ok = false;
1769         ServicePtrs[i]->bBrowseable = sDefault.bBrowseable;
1770
1771         DEBUG(3, ("adding IPC service\n"));
1772
1773         SAFE_FREE(comment);
1774         return true;
1775 }
1776
1777 /***************************************************************************
1778  Add a new printer service, with defaults coming from service iFrom.
1779 ***************************************************************************/
1780
1781 bool lp_add_printer(const char *pszPrintername, int iDefaultService)
1782 {
1783         const char *comment = "From Printcap";
1784         int i = add_a_service(ServicePtrs[iDefaultService], pszPrintername);
1785
1786         if (i < 0)
1787                 return false;
1788
1789         /* note that we do NOT default the availability flag to true - */
1790         /* we take it from the default service passed. This allows all */
1791         /* dynamic printers to be disabled by disabling the [printers] */
1792         /* entry (if/when the 'available' keyword is implemented!).    */
1793
1794         /* the printer name is set to the service name. */
1795         string_set(&ServicePtrs[i]->szPrintername, pszPrintername);
1796         string_set(&ServicePtrs[i]->comment, comment);
1797
1798         /* set the browseable flag from the gloabl default */
1799         ServicePtrs[i]->bBrowseable = sDefault.bBrowseable;
1800
1801         /* Printers cannot be read_only. */
1802         ServicePtrs[i]->bRead_only = false;
1803         /* No oplocks on printer services. */
1804         ServicePtrs[i]->bOpLocks = false;
1805         /* Printer services must be printable. */
1806         ServicePtrs[i]->bPrint_ok = true;
1807
1808         DEBUG(3, ("adding printer service %s\n", pszPrintername));
1809
1810         return true;
1811 }
1812
1813
1814 /***************************************************************************
1815  Check whether the given parameter name is valid.
1816  Parametric options (names containing a colon) are considered valid.
1817 ***************************************************************************/
1818
1819 bool lp_parameter_is_valid(const char *pszParmName)
1820 {
1821         return ((map_parameter(pszParmName) != -1) ||
1822                 (strchr(pszParmName, ':') != NULL));
1823 }
1824
1825 /***************************************************************************
1826  Check whether the given name is the name of a global parameter.
1827  Returns true for strings belonging to parameters of class
1828  P_GLOBAL, false for all other strings, also for parametric options
1829  and strings not belonging to any option.
1830 ***************************************************************************/
1831
1832 bool lp_parameter_is_global(const char *pszParmName)
1833 {
1834         int num = map_parameter(pszParmName);
1835
1836         if (num >= 0) {
1837                 return (parm_table[num].p_class == P_GLOBAL);
1838         }
1839
1840         return false;
1841 }
1842
1843 /**************************************************************************
1844  Check whether the given name is the canonical name of a parameter.
1845  Returns false if it is not a valid parameter Name.
1846  For parametric options, true is returned.
1847 **************************************************************************/
1848
1849 bool lp_parameter_is_canonical(const char *parm_name)
1850 {
1851         if (!lp_parameter_is_valid(parm_name)) {
1852                 return false;
1853         }
1854
1855         return (map_parameter(parm_name) ==
1856                 map_parameter_canonical(parm_name, NULL));
1857 }
1858
1859 /**************************************************************************
1860  Determine the canonical name for a parameter.
1861  Indicate when it is an inverse (boolean) synonym instead of a
1862  "usual" synonym.
1863 **************************************************************************/
1864
1865 bool lp_canonicalize_parameter(const char *parm_name, const char **canon_parm,
1866                                bool *inverse)
1867 {
1868         int num;
1869
1870         if (!lp_parameter_is_valid(parm_name)) {
1871                 *canon_parm = NULL;
1872                 return false;
1873         }
1874
1875         num = map_parameter_canonical(parm_name, inverse);
1876         if (num < 0) {
1877                 /* parametric option */
1878                 *canon_parm = parm_name;
1879         } else {
1880                 *canon_parm = parm_table[num].label;
1881         }
1882
1883         return true;
1884
1885 }
1886
1887 /**************************************************************************
1888  Determine the canonical name for a parameter.
1889  Turn the value given into the inverse boolean expression when
1890  the synonym is an invers boolean synonym.
1891
1892  Return true if parm_name is a valid parameter name and
1893  in case it is an invers boolean synonym, if the val string could
1894  successfully be converted to the reverse bool.
1895  Return false in all other cases.
1896 **************************************************************************/
1897
1898 bool lp_canonicalize_parameter_with_value(const char *parm_name,
1899                                           const char *val,
1900                                           const char **canon_parm,
1901                                           const char **canon_val)
1902 {
1903         int num;
1904         bool inverse;
1905
1906         if (!lp_parameter_is_valid(parm_name)) {
1907                 *canon_parm = NULL;
1908                 *canon_val = NULL;
1909                 return false;
1910         }
1911
1912         num = map_parameter_canonical(parm_name, &inverse);
1913         if (num < 0) {
1914                 /* parametric option */
1915                 *canon_parm = parm_name;
1916                 *canon_val = val;
1917         } else {
1918                 *canon_parm = parm_table[num].label;
1919                 if (inverse) {
1920                         if (!lp_invert_boolean(val, canon_val)) {
1921                                 *canon_val = NULL;
1922                                 return false;
1923                         }
1924                 } else {
1925                         *canon_val = val;
1926                 }
1927         }
1928
1929         return true;
1930 }
1931
1932 /***************************************************************************
1933  Map a parameter's string representation to something we can use.
1934  Returns false if the parameter string is not recognised, else TRUE.
1935 ***************************************************************************/
1936
1937 static int map_parameter(const char *pszParmName)
1938 {
1939         int iIndex;
1940
1941         if (*pszParmName == '-' && !strequal(pszParmName, "-valid"))
1942                 return (-1);
1943
1944         for (iIndex = 0; parm_table[iIndex].label; iIndex++)
1945                 if (strwicmp(parm_table[iIndex].label, pszParmName) == 0)
1946                         return (iIndex);
1947
1948         /* Warn only if it isn't parametric option */
1949         if (strchr(pszParmName, ':') == NULL)
1950                 DEBUG(1, ("Unknown parameter encountered: \"%s\"\n", pszParmName));
1951         /* We do return 'fail' for parametric options as well because they are
1952            stored in different storage
1953          */
1954         return (-1);
1955 }
1956
1957 /***************************************************************************
1958  Map a parameter's string representation to the index of the canonical
1959  form of the parameter (it might be a synonym).
1960  Returns -1 if the parameter string is not recognised.
1961 ***************************************************************************/
1962
1963 static int map_parameter_canonical(const char *pszParmName, bool *inverse)
1964 {
1965         int parm_num, canon_num;
1966         bool loc_inverse = false;
1967
1968         parm_num = map_parameter(pszParmName);
1969         if ((parm_num < 0) || !(parm_table[parm_num].flags & FLAG_HIDE)) {
1970                 /* invalid, parametric or no canidate for synonyms ... */
1971                 goto done;
1972         }
1973
1974         for (canon_num = 0; parm_table[canon_num].label; canon_num++) {
1975                 if (is_synonym_of(parm_num, canon_num, &loc_inverse)) {
1976                         parm_num = canon_num;
1977                         goto done;
1978                 }
1979         }
1980
1981 done:
1982         if (inverse != NULL) {
1983                 *inverse = loc_inverse;
1984         }
1985         return parm_num;
1986 }
1987
1988 /***************************************************************************
1989  return true if parameter number parm1 is a synonym of parameter
1990  number parm2 (parm2 being the principal name).
1991  set inverse to true if parm1 is P_BOOLREV and parm2 is P_BOOL,
1992  false otherwise.
1993 ***************************************************************************/
1994
1995 static bool is_synonym_of(int parm1, int parm2, bool *inverse)
1996 {
1997         if ((parm_table[parm1].offset == parm_table[parm2].offset) &&
1998             (parm_table[parm1].p_class == parm_table[parm2].p_class) &&
1999             (parm_table[parm1].flags & FLAG_HIDE) &&
2000             !(parm_table[parm2].flags & FLAG_HIDE))
2001         {
2002                 if (inverse != NULL) {
2003                         if ((parm_table[parm1].type == P_BOOLREV) &&
2004                             (parm_table[parm2].type == P_BOOL))
2005                         {
2006                                 *inverse = true;
2007                         } else {
2008                                 *inverse = false;
2009                         }
2010                 }
2011                 return true;
2012         }
2013         return false;
2014 }
2015
2016 /***************************************************************************
2017  Show one parameter's name, type, [values,] and flags.
2018  (helper functions for show_parameter_list)
2019 ***************************************************************************/
2020
2021 static void show_parameter(int parmIndex)
2022 {
2023         int enumIndex, flagIndex;
2024         int parmIndex2;
2025         bool hadFlag;
2026         bool hadSyn;
2027         bool inverse;
2028         const char *type[] = { "P_BOOL", "P_BOOLREV", "P_CHAR", "P_INTEGER",
2029                 "P_OCTAL", "P_LIST", "P_STRING", "P_USTRING",
2030                 "P_ENUM", "P_SEP"};
2031         unsigned flags[] = { FLAG_BASIC, FLAG_SHARE, FLAG_PRINT, FLAG_GLOBAL,
2032                 FLAG_WIZARD, FLAG_ADVANCED, FLAG_DEVELOPER, FLAG_DEPRECATED,
2033                 FLAG_HIDE};
2034         const char *flag_names[] = { "FLAG_BASIC", "FLAG_SHARE", "FLAG_PRINT",
2035                 "FLAG_GLOBAL", "FLAG_WIZARD", "FLAG_ADVANCED", "FLAG_DEVELOPER",
2036                 "FLAG_DEPRECATED", "FLAG_HIDE", NULL};
2037
2038         printf("%s=%s", parm_table[parmIndex].label,
2039                type[parm_table[parmIndex].type]);
2040         if (parm_table[parmIndex].type == P_ENUM) {
2041                 printf(",");
2042                 for (enumIndex=0;
2043                      parm_table[parmIndex].enum_list[enumIndex].name;
2044                      enumIndex++)
2045                 {
2046                         printf("%s%s",
2047                                enumIndex ? "|" : "",
2048                                parm_table[parmIndex].enum_list[enumIndex].name);
2049                 }
2050         }
2051         printf(",");
2052         hadFlag = false;
2053         for (flagIndex=0; flag_names[flagIndex]; flagIndex++) {
2054                 if (parm_table[parmIndex].flags & flags[flagIndex]) {
2055                         printf("%s%s",
2056                                 hadFlag ? "|" : "",
2057                                 flag_names[flagIndex]);
2058                         hadFlag = true;
2059                 }
2060         }
2061
2062         /* output synonyms */
2063         hadSyn = false;
2064         for (parmIndex2=0; parm_table[parmIndex2].label; parmIndex2++) {
2065                 if (is_synonym_of(parmIndex, parmIndex2, &inverse)) {
2066                         printf(" (%ssynonym of %s)", inverse ? "inverse " : "",
2067                                parm_table[parmIndex2].label);
2068                 } else if (is_synonym_of(parmIndex2, parmIndex, &inverse)) {
2069                         if (!hadSyn) {
2070                                 printf(" (synonyms: ");
2071                                 hadSyn = true;
2072                         } else {
2073                                 printf(", ");
2074                         }
2075                         printf("%s%s", parm_table[parmIndex2].label,
2076                                inverse ? "[i]" : "");
2077                 }
2078         }
2079         if (hadSyn) {
2080                 printf(")");
2081         }
2082
2083         printf("\n");
2084 }
2085
2086 /***************************************************************************
2087  Show all parameter's name, type, [values,] and flags.
2088 ***************************************************************************/
2089
2090 void show_parameter_list(void)
2091 {
2092         int classIndex, parmIndex;
2093         const char *section_names[] = { "local", "global", NULL};
2094
2095         for (classIndex=0; section_names[classIndex]; classIndex++) {
2096                 printf("[%s]\n", section_names[classIndex]);
2097                 for (parmIndex = 0; parm_table[parmIndex].label; parmIndex++) {
2098                         if (parm_table[parmIndex].p_class == classIndex) {
2099                                 show_parameter(parmIndex);
2100                         }
2101                 }
2102         }
2103 }
2104
2105 /***************************************************************************
2106  Check if a given string correctly represents a boolean value.
2107 ***************************************************************************/
2108
2109 bool lp_string_is_valid_boolean(const char *parm_value)
2110 {
2111         return set_boolean(parm_value, NULL);
2112 }
2113
2114 /***************************************************************************
2115  Get the standard string representation of a boolean value ("yes" or "no")
2116 ***************************************************************************/
2117
2118 static const char *get_boolean(bool bool_value)
2119 {
2120         static const char *yes_str = "yes";
2121         static const char *no_str = "no";
2122
2123         return (bool_value ? yes_str : no_str);
2124 }
2125
2126 /***************************************************************************
2127  Provide the string of the negated boolean value associated to the boolean
2128  given as a string. Returns false if the passed string does not correctly
2129  represent a boolean.
2130 ***************************************************************************/
2131
2132 bool lp_invert_boolean(const char *str, const char **inverse_str)
2133 {
2134         bool val;
2135
2136         if (!set_boolean(str, &val)) {
2137                 return false;
2138         }
2139
2140         *inverse_str = get_boolean(!val);
2141         return true;
2142 }
2143
2144 /***************************************************************************
2145  Provide the canonical string representation of a boolean value given
2146  as a string. Return true on success, false if the string given does
2147  not correctly represent a boolean.
2148 ***************************************************************************/
2149
2150 bool lp_canonicalize_boolean(const char *str, const char**canon_str)
2151 {
2152         bool val;
2153
2154         if (!set_boolean(str, &val)) {
2155                 return false;
2156         }
2157
2158         *canon_str = get_boolean(val);
2159         return true;
2160 }
2161
2162 /***************************************************************************
2163 Find a service by name. Otherwise works like get_service.
2164 ***************************************************************************/
2165
2166 static int getservicebyname(const char *pszServiceName, struct loadparm_service *pserviceDest)
2167 {
2168         int iService = -1;
2169         char *canon_name;
2170         TDB_DATA data;
2171         NTSTATUS status;
2172
2173         if (ServiceHash == NULL) {
2174                 return -1;
2175         }
2176
2177         canon_name = canonicalize_servicename(talloc_tos(), pszServiceName);
2178
2179         status = dbwrap_fetch_bystring(ServiceHash, canon_name, canon_name,
2180                                        &data);
2181
2182         if (NT_STATUS_IS_OK(status) &&
2183             (data.dptr != NULL) &&
2184             (data.dsize == sizeof(iService)))
2185         {
2186                 iService = *(int *)data.dptr;
2187         }
2188
2189         TALLOC_FREE(canon_name);
2190
2191         if ((iService != -1) && (LP_SNUM_OK(iService))
2192             && (pserviceDest != NULL)) {
2193                 copy_service(pserviceDest, ServicePtrs[iService], NULL);
2194         }
2195
2196         return (iService);
2197 }
2198
2199 /* Return a pointer to a service by name.  Unlike getservicebyname, it does not copy the service */
2200 struct loadparm_service *lp_service(const char *pszServiceName)
2201 {
2202         int iService = getservicebyname(pszServiceName, NULL);
2203         if (iService == -1 || !LP_SNUM_OK(iService)) {
2204                 return NULL;
2205         }
2206         return ServicePtrs[iService];
2207 }
2208
2209 struct loadparm_service *lp_servicebynum(int snum)
2210 {
2211         if ((snum == -1) || !LP_SNUM_OK(snum)) {
2212                 return NULL;
2213         }
2214         return ServicePtrs[snum];
2215 }
2216
2217 struct loadparm_service *lp_default_loadparm_service()
2218 {
2219         return &sDefault;
2220 }
2221
2222
2223 /***************************************************************************
2224  Copy a service structure to another.
2225  If pcopymapDest is NULL then copy all fields
2226 ***************************************************************************/
2227
2228 /**
2229  * Add a parametric option to a parmlist_entry,
2230  * replacing old value, if already present.
2231  */
2232 static void set_param_opt(struct parmlist_entry **opt_list,
2233                           const char *opt_name,
2234                           const char *opt_value,
2235                           unsigned priority)
2236 {
2237         struct parmlist_entry *new_opt, *opt;
2238         bool not_added;
2239
2240         opt = *opt_list;
2241         not_added = true;
2242
2243         /* Traverse destination */
2244         while (opt) {
2245                 /* If we already have same option, override it */
2246                 if (strwicmp(opt->key, opt_name) == 0) {
2247                         if ((opt->priority & FLAG_CMDLINE) &&
2248                             !(priority & FLAG_CMDLINE)) {
2249                                 /* it's been marked as not to be
2250                                    overridden */
2251                                 return;
2252                         }
2253                         string_free(&opt->value);
2254                         TALLOC_FREE(opt->list);
2255                         opt->value = SMB_STRDUP(opt_value);
2256                         opt->priority = priority;
2257                         not_added = false;
2258                         break;
2259                 }
2260                 opt = opt->next;
2261         }
2262         if (not_added) {
2263             new_opt = SMB_XMALLOC_P(struct parmlist_entry);
2264             new_opt->key = SMB_STRDUP(opt_name);
2265             new_opt->value = SMB_STRDUP(opt_value);
2266             new_opt->list = NULL;
2267             new_opt->priority = priority;
2268             DLIST_ADD(*opt_list, new_opt);
2269         }
2270 }
2271
2272 static void copy_service(struct loadparm_service *pserviceDest, struct loadparm_service *pserviceSource,
2273                          struct bitmap *pcopymapDest)
2274 {
2275         int i;
2276         bool bcopyall = (pcopymapDest == NULL);
2277         struct parmlist_entry *data;
2278
2279         for (i = 0; parm_table[i].label; i++)
2280                 if (parm_table[i].p_class == P_LOCAL &&
2281                     (bcopyall || bitmap_query(pcopymapDest,i))) {
2282                         void *src_ptr = lp_parm_ptr(pserviceSource, &parm_table[i]);
2283                         void *dest_ptr = lp_parm_ptr(pserviceDest, &parm_table[i]);
2284
2285                         switch (parm_table[i].type) {
2286                                 case P_BOOL:
2287                                 case P_BOOLREV:
2288                                         *(bool *)dest_ptr = *(bool *)src_ptr;
2289                                         break;
2290
2291                                 case P_INTEGER:
2292                                 case P_ENUM:
2293                                 case P_OCTAL:
2294                                 case P_BYTES:
2295                                         *(int *)dest_ptr = *(int *)src_ptr;
2296                                         break;
2297
2298                                 case P_CHAR:
2299                                         *(char *)dest_ptr = *(char *)src_ptr;
2300                                         break;
2301
2302                                 case P_STRING:
2303                                         string_set((char **)dest_ptr,
2304                                                    *(char **)src_ptr);
2305                                         break;
2306
2307                                 case P_USTRING:
2308                                 {
2309                                         char *upper_string = strupper_talloc(talloc_tos(),
2310                                                                              *(char **)src_ptr);
2311                                         string_set((char **)dest_ptr,
2312                                                    upper_string);
2313                                         TALLOC_FREE(upper_string);
2314                                         break;
2315                                 }
2316                                 case P_LIST:
2317                                         TALLOC_FREE(*((char ***)dest_ptr));
2318                                         *((char ***)dest_ptr) = str_list_copy(NULL,
2319                                                       *(const char ***)src_ptr);
2320                                         break;
2321                                 default:
2322                                         break;
2323                         }
2324                 }
2325
2326         if (bcopyall) {
2327                 init_copymap(pserviceDest);
2328                 if (pserviceSource->copymap)
2329                         bitmap_copy(pserviceDest->copymap,
2330                                     pserviceSource->copymap);
2331         }
2332
2333         data = pserviceSource->param_opt;
2334         while (data) {
2335                 set_param_opt(&pserviceDest->param_opt, data->key, data->value, data->priority);
2336                 data = data->next;
2337         }
2338 }
2339
2340 /***************************************************************************
2341 Check a service for consistency. Return false if the service is in any way
2342 incomplete or faulty, else true.
2343 ***************************************************************************/
2344
2345 bool service_ok(int iService)
2346 {
2347         bool bRetval;
2348
2349         bRetval = true;
2350         if (ServicePtrs[iService]->szService[0] == '\0') {
2351                 DEBUG(0, ("The following message indicates an internal error:\n"));
2352                 DEBUG(0, ("No service name in service entry.\n"));
2353                 bRetval = false;
2354         }
2355
2356         /* The [printers] entry MUST be printable. I'm all for flexibility, but */
2357         /* I can't see why you'd want a non-printable printer service...        */
2358         if (strwicmp(ServicePtrs[iService]->szService, PRINTERS_NAME) == 0) {
2359                 if (!ServicePtrs[iService]->bPrint_ok) {
2360                         DEBUG(0, ("WARNING: [%s] service MUST be printable!\n",
2361                                ServicePtrs[iService]->szService));
2362                         ServicePtrs[iService]->bPrint_ok = true;
2363                 }
2364                 /* [printers] service must also be non-browsable. */
2365                 if (ServicePtrs[iService]->bBrowseable)
2366                         ServicePtrs[iService]->bBrowseable = false;
2367         }
2368
2369         if (ServicePtrs[iService]->szPath[0] == '\0' &&
2370             strwicmp(ServicePtrs[iService]->szService, HOMES_NAME) != 0 &&
2371             ServicePtrs[iService]->szMSDfsProxy[0] == '\0'
2372             ) {
2373                 DEBUG(0, ("WARNING: No path in service %s - making it unavailable!\n",
2374                         ServicePtrs[iService]->szService));
2375                 ServicePtrs[iService]->bAvailable = false;
2376         }
2377
2378         /* If a service is flagged unavailable, log the fact at level 1. */
2379         if (!ServicePtrs[iService]->bAvailable)
2380                 DEBUG(1, ("NOTE: Service %s is flagged unavailable.\n",
2381                           ServicePtrs[iService]->szService));
2382
2383         return (bRetval);
2384 }
2385
2386 static struct smbconf_ctx *lp_smbconf_ctx(void)
2387 {
2388         sbcErr err;
2389         static struct smbconf_ctx *conf_ctx = NULL;
2390
2391         if (conf_ctx == NULL) {
2392                 err = smbconf_init(NULL, &conf_ctx, "registry:");
2393                 if (!SBC_ERROR_IS_OK(err)) {
2394                         DEBUG(1, ("error initializing registry configuration: "
2395                                   "%s\n", sbcErrorString(err)));
2396                         conf_ctx = NULL;
2397                 }
2398         }
2399
2400         return conf_ctx;
2401 }
2402
2403 static bool process_smbconf_service(struct smbconf_service *service)
2404 {
2405         uint32_t count;
2406         bool ret;
2407
2408         if (service == NULL) {
2409                 return false;
2410         }
2411
2412         ret = do_section(service->name, NULL);
2413         if (ret != true) {
2414                 return false;
2415         }
2416         for (count = 0; count < service->num_params; count++) {
2417                 ret = do_parameter(service->param_names[count],
2418                                    service->param_values[count],
2419                                    NULL);
2420                 if (ret != true) {
2421                         return false;
2422                 }
2423         }
2424         if (iServiceIndex >= 0) {
2425                 return service_ok(iServiceIndex);
2426         }
2427         return true;
2428 }
2429
2430 /**
2431  * load a service from registry and activate it
2432  */
2433 bool process_registry_service(const char *service_name)
2434 {
2435         sbcErr err;
2436         struct smbconf_service *service = NULL;
2437         TALLOC_CTX *mem_ctx = talloc_stackframe();
2438         struct smbconf_ctx *conf_ctx = lp_smbconf_ctx();
2439         bool ret = false;
2440
2441         if (conf_ctx == NULL) {
2442                 goto done;
2443         }
2444
2445         DEBUG(5, ("process_registry_service: service name %s\n", service_name));
2446
2447         if (!smbconf_share_exists(conf_ctx, service_name)) {
2448                 /*
2449                  * Registry does not contain data for this service (yet),
2450                  * but make sure lp_load doesn't return false.
2451                  */
2452                 ret = true;
2453                 goto done;
2454         }
2455
2456         err = smbconf_get_share(conf_ctx, mem_ctx, service_name, &service);
2457         if (!SBC_ERROR_IS_OK(err)) {
2458                 goto done;
2459         }
2460
2461         ret = process_smbconf_service(service);
2462         if (!ret) {
2463                 goto done;
2464         }
2465
2466         /* store the csn */
2467         smbconf_changed(conf_ctx, &conf_last_csn, NULL, NULL);
2468
2469 done:
2470         TALLOC_FREE(mem_ctx);
2471         return ret;
2472 }
2473
2474 /*
2475  * process_registry_globals
2476  */
2477 static bool process_registry_globals(void)
2478 {
2479         bool ret;
2480
2481         add_to_file_list(INCLUDE_REGISTRY_NAME, INCLUDE_REGISTRY_NAME);
2482
2483         ret = do_parameter("registry shares", "yes", NULL);
2484         if (!ret) {
2485                 return ret;
2486         }
2487
2488         return process_registry_service(GLOBAL_NAME);
2489 }
2490
2491 bool process_registry_shares(void)
2492 {
2493         sbcErr err;
2494         uint32_t count;
2495         struct smbconf_service **service = NULL;
2496         uint32_t num_shares = 0;
2497         TALLOC_CTX *mem_ctx = talloc_stackframe();
2498         struct smbconf_ctx *conf_ctx = lp_smbconf_ctx();
2499         bool ret = false;
2500
2501         if (conf_ctx == NULL) {
2502                 goto done;
2503         }
2504
2505         err = smbconf_get_config(conf_ctx, mem_ctx, &num_shares, &service);
2506         if (!SBC_ERROR_IS_OK(err)) {
2507                 goto done;
2508         }
2509
2510         ret = true;
2511
2512         for (count = 0; count < num_shares; count++) {
2513                 if (strequal(service[count]->name, GLOBAL_NAME)) {
2514                         continue;
2515                 }
2516                 ret = process_smbconf_service(service[count]);
2517                 if (!ret) {
2518                         goto done;
2519                 }
2520         }
2521
2522         /* store the csn */
2523         smbconf_changed(conf_ctx, &conf_last_csn, NULL, NULL);
2524
2525 done:
2526         TALLOC_FREE(mem_ctx);
2527         return ret;
2528 }
2529
2530 /**
2531  * reload those shares from registry that are already
2532  * activated in the services array.
2533  */
2534 static bool reload_registry_shares(void)
2535 {
2536         int i;
2537         bool ret = true;
2538
2539         for (i = 0; i < iNumServices; i++) {
2540                 if (!VALID(i)) {
2541                         continue;
2542                 }
2543
2544                 if (ServicePtrs[i]->usershare == USERSHARE_VALID) {
2545                         continue;
2546                 }
2547
2548                 ret = process_registry_service(ServicePtrs[i]->szService);
2549                 if (!ret) {
2550                         goto done;
2551                 }
2552         }
2553
2554 done:
2555         return ret;
2556 }
2557
2558
2559 #define MAX_INCLUDE_DEPTH 100
2560
2561 static uint8_t include_depth;
2562
2563 static struct file_lists {
2564         struct file_lists *next;
2565         char *name;
2566         char *subfname;
2567         time_t modtime;
2568 } *file_lists = NULL;
2569
2570 /*******************************************************************
2571  Keep a linked list of all config files so we know when one has changed
2572  it's date and needs to be reloaded.
2573 ********************************************************************/
2574
2575 static void add_to_file_list(const char *fname, const char *subfname)
2576 {
2577         struct file_lists *f = file_lists;
2578
2579         while (f) {
2580                 if (f->name && !strcmp(f->name, fname))
2581                         break;
2582                 f = f->next;
2583         }
2584
2585         if (!f) {
2586                 f = SMB_MALLOC_P(struct file_lists);
2587                 if (!f)
2588                         return;
2589                 f->next = file_lists;
2590                 f->name = SMB_STRDUP(fname);
2591                 if (!f->name) {
2592                         SAFE_FREE(f);
2593                         return;
2594                 }
2595                 f->subfname = SMB_STRDUP(subfname);
2596                 if (!f->subfname) {
2597                         SAFE_FREE(f->name);
2598                         SAFE_FREE(f);
2599                         return;
2600                 }
2601                 file_lists = f;
2602                 f->modtime = file_modtime(subfname);
2603         } else {
2604                 time_t t = file_modtime(subfname);
2605                 if (t)
2606                         f->modtime = t;
2607         }
2608         return;
2609 }
2610
2611 /**
2612  * Free the file lists
2613  */
2614 static void free_file_list(void)
2615 {
2616         struct file_lists *f;
2617         struct file_lists *next;
2618
2619         f = file_lists;
2620         while( f ) {
2621                 next = f->next;
2622                 SAFE_FREE( f->name );
2623                 SAFE_FREE( f->subfname );
2624                 SAFE_FREE( f );
2625                 f = next;
2626         }
2627         file_lists = NULL;
2628 }
2629
2630
2631 /**
2632  * Utility function for outsiders to check if we're running on registry.
2633  */
2634 bool lp_config_backend_is_registry(void)
2635 {
2636         return (lp_config_backend() == CONFIG_BACKEND_REGISTRY);
2637 }
2638
2639 /**
2640  * Utility function to check if the config backend is FILE.
2641  */
2642 bool lp_config_backend_is_file(void)
2643 {
2644         return (lp_config_backend() == CONFIG_BACKEND_FILE);
2645 }
2646
2647 /*******************************************************************
2648  Check if a config file has changed date.
2649 ********************************************************************/
2650
2651 bool lp_file_list_changed(void)
2652 {
2653         struct file_lists *f = file_lists;
2654
2655         DEBUG(6, ("lp_file_list_changed()\n"));
2656
2657         while (f) {
2658                 time_t mod_time;
2659
2660                 if (strequal(f->name, INCLUDE_REGISTRY_NAME)) {
2661                         struct smbconf_ctx *conf_ctx = lp_smbconf_ctx();
2662
2663                         if (conf_ctx == NULL) {
2664                                 return false;
2665                         }
2666                         if (smbconf_changed(conf_ctx, &conf_last_csn, NULL,
2667                                             NULL))
2668                         {
2669                                 DEBUGADD(6, ("registry config changed\n"));
2670                                 return true;
2671                         }
2672                 } else {
2673                         char *n2 = NULL;
2674                         n2 = talloc_sub_basic(talloc_tos(),
2675                                               get_current_username(),
2676                                               current_user_info.domain,
2677                                               f->name);
2678                         if (!n2) {
2679                                 return false;
2680                         }
2681                         DEBUGADD(6, ("file %s -> %s  last mod_time: %s\n",
2682                                      f->name, n2, ctime(&f->modtime)));
2683
2684                         mod_time = file_modtime(n2);
2685
2686                         if (mod_time &&
2687                             ((f->modtime != mod_time) ||
2688                              (f->subfname == NULL) ||
2689                              (strcmp(n2, f->subfname) != 0)))
2690                         {
2691                                 DEBUGADD(6,
2692                                          ("file %s modified: %s\n", n2,
2693                                           ctime(&mod_time)));
2694                                 f->modtime = mod_time;
2695                                 SAFE_FREE(f->subfname);
2696                                 f->subfname = SMB_STRDUP(n2);
2697                                 TALLOC_FREE(n2);
2698                                 return true;
2699                         }
2700                         TALLOC_FREE(n2);
2701                 }
2702                 f = f->next;
2703         }
2704         return false;
2705 }
2706
2707
2708 /**
2709  * Initialize iconv conversion descriptors.
2710  *
2711  * This is called the first time it is needed, and also called again
2712  * every time the configuration is reloaded, because the charset or
2713  * codepage might have changed.
2714  **/
2715 static void init_iconv(void)
2716 {
2717         global_iconv_handle = smb_iconv_handle_reinit(NULL, lp_dos_charset(),
2718                                                       lp_unix_charset(),
2719                                                       true, global_iconv_handle);
2720 }
2721
2722 static bool handle_charset(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2723 {
2724         if (strcmp(*ptr, pszParmValue) != 0) {
2725                 string_set(ptr, pszParmValue);
2726                 init_iconv();
2727         }
2728         return true;
2729 }
2730
2731 static bool handle_dos_charset(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2732 {
2733         bool is_utf8 = false;
2734         size_t len = strlen(pszParmValue);
2735
2736         if (len == 4 || len == 5) {
2737                 /* Don't use StrCaseCmp here as we don't want to
2738                    initialize iconv. */
2739                 if ((toupper_m(pszParmValue[0]) == 'U') &&
2740                     (toupper_m(pszParmValue[1]) == 'T') &&
2741                     (toupper_m(pszParmValue[2]) == 'F')) {
2742                         if (len == 4) {
2743                                 if (pszParmValue[3] == '8') {
2744                                         is_utf8 = true;
2745                                 }
2746                         } else {
2747                                 if (pszParmValue[3] == '-' &&
2748                                     pszParmValue[4] == '8') {
2749                                         is_utf8 = true;
2750                                 }
2751                         }
2752                 }
2753         }
2754
2755         if (strcmp(*ptr, pszParmValue) != 0) {
2756                 if (is_utf8) {
2757                         DEBUG(0,("ERROR: invalid DOS charset: 'dos charset' must not "
2758                                 "be UTF8, using (default value) %s instead.\n",
2759                                 DEFAULT_DOS_CHARSET));
2760                         pszParmValue = DEFAULT_DOS_CHARSET;
2761                 }
2762                 string_set(ptr, pszParmValue);
2763                 init_iconv();
2764         }
2765         return true;
2766 }
2767
2768 static bool handle_realm(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2769 {
2770         bool ret = true;
2771         TALLOC_CTX *frame = talloc_stackframe();
2772         char *realm = strupper_talloc(frame, pszParmValue);
2773         char *dnsdomain = strlower_talloc(realm, pszParmValue);
2774
2775         ret &= string_set(&Globals.szRealm, pszParmValue);
2776         ret &= string_set(&Globals.szRealm_upper, realm);
2777         ret &= string_set(&Globals.szRealm_lower, dnsdomain);
2778         TALLOC_FREE(frame);
2779
2780         return ret;
2781 }
2782
2783 static bool handle_netbios_aliases(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2784 {
2785         TALLOC_FREE(Globals.szNetbiosAliases);
2786         Globals.szNetbiosAliases = (const char **)str_list_make_v3(NULL, pszParmValue, NULL);
2787         return set_netbios_aliases(Globals.szNetbiosAliases);
2788 }
2789
2790 /***************************************************************************
2791  Handle the include operation.
2792 ***************************************************************************/
2793 static bool bAllowIncludeRegistry = true;
2794
2795 static bool handle_include(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2796 {
2797         char *fname;
2798
2799         if (include_depth >= MAX_INCLUDE_DEPTH) {
2800                 DEBUG(0, ("Error: Maximum include depth (%u) exceeded!\n",
2801                           include_depth));
2802                 return false;
2803         }
2804
2805         if (strequal(pszParmValue, INCLUDE_REGISTRY_NAME)) {
2806                 if (!bAllowIncludeRegistry) {
2807                         return true;
2808                 }
2809                 if (bInGlobalSection) {
2810                         bool ret;
2811                         include_depth++;
2812                         ret = process_registry_globals();
2813                         include_depth--;
2814                         return ret;
2815                 } else {
2816                         DEBUG(1, ("\"include = registry\" only effective "
2817                                   "in %s section\n", GLOBAL_NAME));
2818                         return false;
2819                 }
2820         }
2821
2822         fname = talloc_sub_basic(talloc_tos(), get_current_username(),
2823                                  current_user_info.domain,
2824                                  pszParmValue);
2825
2826         add_to_file_list(pszParmValue, fname);
2827
2828         string_set(ptr, fname);
2829
2830         if (file_exist(fname)) {
2831                 bool ret;
2832                 include_depth++;
2833                 ret = pm_process(fname, do_section, do_parameter, NULL);
2834                 include_depth--;
2835                 TALLOC_FREE(fname);
2836                 return ret;
2837         }
2838
2839         DEBUG(2, ("Can't find include file %s\n", fname));
2840         TALLOC_FREE(fname);
2841         return true;
2842 }
2843
2844 /***************************************************************************
2845  Handle the interpretation of the copy parameter.
2846 ***************************************************************************/
2847
2848 static bool handle_copy(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2849 {
2850         bool bRetval;
2851         int iTemp;
2852         struct loadparm_service serviceTemp;
2853
2854         string_set(ptr, pszParmValue);
2855
2856         init_service(&serviceTemp);
2857
2858         bRetval = false;
2859
2860         DEBUG(3, ("Copying service from service %s\n", pszParmValue));
2861
2862         if ((iTemp = getservicebyname(pszParmValue, &serviceTemp)) >= 0) {
2863                 if (iTemp == iServiceIndex) {
2864                         DEBUG(0, ("Can't copy service %s - unable to copy self!\n", pszParmValue));
2865                 } else {
2866                         copy_service(ServicePtrs[iServiceIndex],
2867                                      &serviceTemp,
2868                                      ServicePtrs[iServiceIndex]->copymap);
2869                         bRetval = true;
2870                 }
2871         } else {
2872                 DEBUG(0, ("Unable to copy service - source not found: %s\n", pszParmValue));
2873                 bRetval = false;
2874         }
2875
2876         free_service(&serviceTemp);
2877         return (bRetval);
2878 }
2879
2880 static bool handle_ldap_debug_level(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2881 {
2882         Globals.ldap_debug_level = lp_int(pszParmValue);
2883         init_ldap_debugging();
2884         return true;
2885 }
2886
2887 /***************************************************************************
2888  Handle idmap/non unix account uid and gid allocation parameters.  The format of these
2889  parameters is:
2890
2891  [global]
2892
2893         idmap uid = 1000-1999
2894         idmap gid = 700-899
2895
2896  We only do simple parsing checks here.  The strings are parsed into useful
2897  structures in the idmap daemon code.
2898
2899 ***************************************************************************/
2900
2901 /* Some lp_ routines to return idmap [ug]id information */
2902
2903 static uid_t idmap_uid_low, idmap_uid_high;
2904 static gid_t idmap_gid_low, idmap_gid_high;
2905
2906 bool lp_idmap_uid(uid_t *low, uid_t *high)
2907 {
2908         if (idmap_uid_low == 0 || idmap_uid_high == 0)
2909                 return false;
2910
2911         if (low)
2912                 *low = idmap_uid_low;
2913
2914         if (high)
2915                 *high = idmap_uid_high;
2916
2917         return true;
2918 }
2919
2920 bool lp_idmap_gid(gid_t *low, gid_t *high)
2921 {
2922         if (idmap_gid_low == 0 || idmap_gid_high == 0)
2923                 return false;
2924
2925         if (low)
2926                 *low = idmap_gid_low;
2927
2928         if (high)
2929                 *high = idmap_gid_high;
2930
2931         return true;
2932 }
2933
2934 static bool handle_idmap_backend(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2935 {
2936         lp_do_parameter(snum, "idmap config * : backend", pszParmValue);
2937
2938         return true;
2939 }
2940
2941 static bool handle_idmap_uid(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2942 {
2943         lp_do_parameter(snum, "idmap config * : range", pszParmValue);
2944
2945         return true;
2946 }
2947
2948 static bool handle_idmap_gid(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
2949 {
2950         lp_do_parameter(snum, "idmap config * : range", pszParmValue);
2951
2952         return true;
2953 }
2954
2955 /***************************************************************************
2956  Handle the DEBUG level list.
2957 ***************************************************************************/
2958
2959 static bool handle_debug_list(struct loadparm_context *unused, int snum, const char *pszParmValueIn, char **ptr )
2960 {
2961         string_set(ptr, pszParmValueIn);
2962         return debug_parse_levels(pszParmValueIn);
2963 }
2964
2965 /***************************************************************************
2966  Handle ldap suffixes - default to ldapsuffix if sub-suffixes are not defined.
2967 ***************************************************************************/
2968
2969 static const char *append_ldap_suffix(TALLOC_CTX *ctx, const char *str )
2970 {
2971         const char *suffix_string;
2972
2973         suffix_string = talloc_asprintf(ctx, "%s,%s", str,
2974                                         Globals.szLdapSuffix );
2975         if ( !suffix_string ) {
2976                 DEBUG(0,("append_ldap_suffix: talloc_asprintf() failed!\n"));
2977                 return "";
2978         }
2979
2980         return suffix_string;
2981 }
2982
2983 const char *lp_ldap_machine_suffix(TALLOC_CTX *ctx)
2984 {
2985         if (Globals.szLdapMachineSuffix[0])
2986                 return append_ldap_suffix(ctx, Globals.szLdapMachineSuffix);
2987
2988         return lp_string(ctx, Globals.szLdapSuffix);
2989 }
2990
2991 const char *lp_ldap_user_suffix(TALLOC_CTX *ctx)
2992 {
2993         if (Globals.szLdapUserSuffix[0])
2994                 return append_ldap_suffix(ctx, Globals.szLdapUserSuffix);
2995
2996         return lp_string(ctx, Globals.szLdapSuffix);
2997 }
2998
2999 const char *lp_ldap_group_suffix(TALLOC_CTX *ctx)
3000 {
3001         if (Globals.szLdapGroupSuffix[0])
3002                 return append_ldap_suffix(ctx, Globals.szLdapGroupSuffix);
3003
3004         return lp_string(ctx, Globals.szLdapSuffix);
3005 }
3006
3007 const char *lp_ldap_idmap_suffix(TALLOC_CTX *ctx)
3008 {
3009         if (Globals.szLdapIdmapSuffix[0])
3010                 return append_ldap_suffix(ctx, Globals.szLdapIdmapSuffix);
3011
3012         return lp_string(ctx, Globals.szLdapSuffix);
3013 }
3014
3015 /****************************************************************************
3016  set the value for a P_ENUM
3017  ***************************************************************************/
3018
3019 static void lp_set_enum_parm( struct parm_struct *parm, const char *pszParmValue,
3020                               int *ptr )
3021 {
3022         int i;
3023
3024         for (i = 0; parm->enum_list[i].name; i++) {
3025                 if ( strequal(pszParmValue, parm->enum_list[i].name)) {
3026                         *ptr = parm->enum_list[i].value;
3027                         return;
3028                 }
3029         }
3030         DEBUG(0, ("WARNING: Ignoring invalid value '%s' for parameter '%s'\n",
3031                   pszParmValue, parm->label));
3032 }
3033
3034 /***************************************************************************
3035 ***************************************************************************/
3036
3037 static bool handle_printing(struct loadparm_context *unused, int snum, const char *pszParmValue, char **ptr)
3038 {
3039         static int parm_num = -1;
3040         struct loadparm_service *s;
3041
3042         if ( parm_num == -1 )
3043                 parm_num = map_parameter( "printing" );
3044
3045         lp_set_enum_parm( &parm_table[parm_num], pszParmValue, (int*)ptr );
3046
3047         if ( snum < 0 )
3048                 s = &sDefault;
3049         else
3050                 s = ServicePtrs[snum];
3051
3052         init_printer_values( s );
3053
3054         return true;
3055 }
3056
3057
3058 /***************************************************************************
3059  Initialise a copymap.
3060 ***************************************************************************/
3061
3062 static void init_copymap(struct loadparm_service *pservice)
3063 {
3064         int i;
3065
3066         TALLOC_FREE(pservice->copymap);
3067
3068         pservice->copymap = bitmap_talloc(NULL, NUMPARAMETERS);
3069         if (!pservice->copymap)
3070                 DEBUG(0,
3071                       ("Couldn't allocate copymap!! (size %d)\n",
3072                        (int)NUMPARAMETERS));
3073         else
3074                 for (i = 0; i < NUMPARAMETERS; i++)
3075                         bitmap_set(pservice->copymap, i);
3076 }
3077
3078 /**
3079   return the parameter pointer for a parameter
3080 */
3081 void *lp_parm_ptr(struct loadparm_service *service, struct parm_struct *parm)
3082 {
3083         if (service == NULL) {
3084                 if (parm->p_class == P_LOCAL)
3085                         return (void *)(((char *)&sDefault)+parm->offset);
3086                 else if (parm->p_class == P_GLOBAL)
3087                         return (void *)(((char *)&Globals)+parm->offset);
3088                 else return NULL;
3089         } else {
3090                 return (void *)(((char *)service) + parm->offset);
3091         }
3092 }
3093
3094 /***************************************************************************
3095  Return the local pointer to a parameter given the service number and parameter
3096 ***************************************************************************/
3097
3098 void *lp_local_ptr_by_snum(int snum, struct parm_struct *parm)
3099 {
3100         return lp_parm_ptr(ServicePtrs[snum], parm);
3101 }
3102
3103 /***************************************************************************
3104  Process a parameter for a particular service number. If snum < 0
3105  then assume we are in the globals.
3106 ***************************************************************************/
3107
3108 bool lp_do_parameter(int snum, const char *pszParmName, const char *pszParmValue)
3109 {
3110         int parmnum, i;
3111         void *parm_ptr = NULL;  /* where we are going to store the result */
3112         struct parmlist_entry **opt_list;
3113
3114         parmnum = map_parameter(pszParmName);
3115
3116         if (parmnum < 0) {
3117                 if (strchr(pszParmName, ':') == NULL) {
3118                         DEBUG(0, ("Ignoring unknown parameter \"%s\"\n",
3119                                   pszParmName));
3120                         return true;
3121                 }
3122
3123                 /*
3124                  * We've got a parametric option
3125                  */
3126
3127                 opt_list = (snum < 0)
3128                         ? &Globals.param_opt : &ServicePtrs[snum]->param_opt;
3129                 set_param_opt(opt_list, pszParmName, pszParmValue, 0);
3130
3131                 return true;
3132         }
3133
3134         /* if it's already been set by the command line, then we don't
3135            override here */
3136         if (parm_table[parmnum].flags & FLAG_CMDLINE) {
3137                 return true;
3138         }
3139
3140         if (parm_table[parmnum].flags & FLAG_DEPRECATED) {
3141                 DEBUG(1, ("WARNING: The \"%s\" option is deprecated\n",
3142                           pszParmName));
3143         }
3144
3145         /* we might point at a service, the default service or a global */
3146         if (snum < 0) {
3147                 parm_ptr = lp_parm_ptr(NULL, &parm_table[parmnum]);
3148         } else {
3149                 if (parm_table[parmnum].p_class == P_GLOBAL) {
3150                         DEBUG(0,
3151                               ("Global parameter %s found in service section!\n",
3152                                pszParmName));
3153                         return true;
3154                 }
3155                 parm_ptr = lp_local_ptr_by_snum(snum, &parm_table[parmnum]);
3156         }
3157
3158         if (snum >= 0) {
3159                 if (!ServicePtrs[snum]->copymap)
3160                         init_copymap(ServicePtrs[snum]);
3161
3162                 /* this handles the aliases - set the copymap for other entries with
3163                    the same data pointer */
3164                 for (i = 0; parm_table[i].label; i++) {
3165                         if ((parm_table[i].offset == parm_table[parmnum].offset)
3166                             && (parm_table[i].p_class == parm_table[parmnum].p_class)) {
3167                                 bitmap_clear(ServicePtrs[snum]->copymap, i);
3168                         }
3169                 }
3170         }
3171
3172         /* if it is a special case then go ahead */
3173         if (parm_table[parmnum].special) {
3174                 return parm_table[parmnum].special(NULL, snum, pszParmValue,
3175                                                    (char **)parm_ptr);
3176         }
3177
3178         /* now switch on the type of variable it is */
3179         switch (parm_table[parmnum].type)
3180         {
3181                 case P_BOOL:
3182                         *(bool *)parm_ptr = lp_bool(pszParmValue);
3183                         break;
3184
3185                 case P_BOOLREV:
3186                         *(bool *)parm_ptr = !lp_bool(pszParmValue);
3187                         break;
3188
3189                 case P_INTEGER:
3190                         *(int *)parm_ptr = lp_int(pszParmValue);
3191                         break;
3192
3193                 case P_CHAR:
3194                         *(char *)parm_ptr = *pszParmValue;
3195                         break;
3196
3197                 case P_OCTAL:
3198                         i = sscanf(pszParmValue, "%o", (int *)parm_ptr);
3199                         if ( i != 1 ) {
3200                             DEBUG ( 0, ("Invalid octal number %s\n", pszParmName ));
3201                         }
3202                         break;
3203
3204                 case P_BYTES:
3205                 {
3206                         uint64_t val;
3207                         if (conv_str_size_error(pszParmValue, &val)) {
3208                                 if (val <= INT_MAX) {
3209                                         *(int *)parm_ptr = (int)val;
3210                                         break;
3211                                 }
3212                         }
3213
3214                         DEBUG(0,("lp_do_parameter(%s): value is not "
3215                             "a valid size specifier!\n", pszParmValue));
3216                         return false;
3217                 }
3218
3219                 case P_LIST:
3220                 case P_CMDLIST:
3221                         TALLOC_FREE(*((char ***)parm_ptr));
3222                         *(char ***)parm_ptr = str_list_make_v3(
3223                                 NULL, pszParmValue, NULL);
3224                         break;
3225
3226                 case P_STRING:
3227                         string_set((char **)parm_ptr, pszParmValue);
3228                         break;
3229
3230                 case P_USTRING:
3231                 {
3232                         char *upper_string = strupper_talloc(talloc_tos(),
3233                                                              pszParmValue);
3234                         string_set((char **)parm_ptr, upper_string);
3235                         TALLOC_FREE(upper_string);
3236                         break;
3237                 }
3238                 case P_ENUM:
3239                         lp_set_enum_parm( &parm_table[parmnum], pszParmValue, (int*)parm_ptr );
3240                         break;
3241                 case P_SEP:
3242                         break;
3243         }
3244
3245         return true;
3246 }
3247
3248 /***************************************************************************
3249 set a parameter, marking it with FLAG_CMDLINE. Parameters marked as
3250 FLAG_CMDLINE won't be overridden by loads from smb.conf.
3251 ***************************************************************************/
3252
3253 static bool lp_set_cmdline_helper(const char *pszParmName, const char *pszParmValue, bool store_values)
3254 {
3255         int parmnum, i;
3256         parmnum = map_parameter(pszParmName);
3257         if (parmnum >= 0) {
3258                 parm_table[parmnum].flags &= ~FLAG_CMDLINE;
3259                 if (!lp_do_parameter(-1, pszParmName, pszParmValue)) {
3260                         return false;
3261                 }
3262                 parm_table[parmnum].flags |= FLAG_CMDLINE;
3263
3264                 /* we have to also set FLAG_CMDLINE on aliases.  Aliases must
3265                  * be grouped in the table, so we don't have to search the
3266                  * whole table */
3267                 for (i=parmnum-1;
3268                      i>=0 && parm_table[i].offset == parm_table[parmnum].offset
3269                              && parm_table[i].p_class == parm_table[parmnum].p_class;
3270                      i--) {
3271                         parm_table[i].flags |= FLAG_CMDLINE;
3272                 }
3273                 for (i=parmnum+1;i<NUMPARAMETERS && parm_table[i].offset == parm_table[parmnum].offset
3274                              && parm_table[i].p_class == parm_table[parmnum].p_class;i++) {
3275                         parm_table[i].flags |= FLAG_CMDLINE;
3276                 }
3277
3278                 if (store_values) {
3279                         store_lp_set_cmdline(pszParmName, pszParmValue);
3280                 }
3281                 return true;
3282         }
3283
3284         /* it might be parametric */
3285         if (strchr(pszParmName, ':') != NULL) {
3286                 set_param_opt(&Globals.param_opt, pszParmName, pszParmValue, FLAG_CMDLINE);
3287                 if (store_values) {
3288                         store_lp_set_cmdline(pszParmName, pszParmValue);
3289                 }
3290                 return true;
3291         }
3292
3293         DEBUG(0, ("Ignoring unknown parameter \"%s\"\n",  pszParmName));
3294         return true;
3295 }
3296
3297 bool lp_set_cmdline(const char *pszParmName, const char *pszParmValue)
3298 {
3299         return lp_set_cmdline_helper(pszParmName, pszParmValue, true);
3300 }
3301
3302 /***************************************************************************
3303  Process a parameter.
3304 ***************************************************************************/
3305
3306 static bool do_parameter(const char *pszParmName, const char *pszParmValue,
3307                          void *userdata)
3308 {
3309         if (!bInGlobalSection && bGlobalOnly)
3310                 return true;
3311
3312         DEBUGADD(4, ("doing parameter %s = %s\n", pszParmName, pszParmValue));
3313
3314         return (lp_do_parameter(bInGlobalSection ? -2 : iServiceIndex,
3315                                 pszParmName, pszParmValue));
3316 }
3317
3318 /*
3319   set a option from the commandline in 'a=b' format. Use to support --option
3320 */
3321 bool lp_set_option(const char *option)
3322 {
3323         char *p, *s;
3324         bool ret;
3325
3326         s = talloc_strdup(NULL, option);
3327         if (!s) {
3328                 return false;
3329         }
3330
3331         p = strchr(s, '=');
3332         if (!p) {
3333                 talloc_free(s);
3334                 return false;
3335         }
3336
3337         *p = 0;
3338
3339         /* skip white spaces after the = sign */
3340         do {
3341                 p++;
3342         } while (*p == ' ');
3343
3344         ret = lp_set_cmdline(s, p);
3345         talloc_free(s);
3346         return ret;
3347 }
3348
3349 /**************************************************************************
3350  Print a parameter of the specified type.
3351 ***************************************************************************/
3352
3353 static void print_parameter(struct parm_struct *p, void *ptr, FILE * f)
3354 {
3355         /* For the seperation of lists values that we print below */
3356         const char *list_sep = ", ";
3357         int i;
3358         switch (p->type)
3359         {
3360                 case P_ENUM:
3361                         for (i = 0; p->enum_list[i].name; i++) {
3362                                 if (*(int *)ptr == p->enum_list[i].value) {
3363                                         fprintf(f, "%s",
3364                                                 p->enum_list[i].name);
3365                                         break;
3366                                 }
3367                         }
3368                         break;
3369
3370                 case P_BOOL:
3371                         fprintf(f, "%s", BOOLSTR(*(bool *)ptr));
3372                         break;
3373
3374                 case P_BOOLREV:
3375                         fprintf(f, "%s", BOOLSTR(!*(bool *)ptr));
3376                         break;
3377
3378                 case P_INTEGER:
3379                 case P_BYTES:
3380                         fprintf(f, "%d", *(int *)ptr);
3381                         break;
3382
3383                 case P_CHAR:
3384                         fprintf(f, "%c", *(char *)ptr);
3385                         break;
3386
3387                 case P_OCTAL: {
3388                         int val = *(int *)ptr;
3389                         if (val == -1) {
3390                                 fprintf(f, "-1");
3391                         } else {
3392                                 fprintf(f, "0%o", val);
3393                         }
3394                         break;
3395                 }
3396
3397                 case P_CMDLIST:
3398                         list_sep = " ";
3399                         /* fall through */
3400                 case P_LIST:
3401                         if ((char ***)ptr && *(char ***)ptr) {
3402                                 char **list = *(char ***)ptr;
3403                                 for (; *list; list++) {
3404                                         /* surround strings with whitespace in double quotes */
3405                                         if (*(list+1) == NULL) {
3406                                                 /* last item, no extra separator */
3407                                                 list_sep = "";
3408                                         }
3409                                         if ( strchr_m( *list, ' ' ) ) {
3410                                                 fprintf(f, "\"%s\"%s", *list, list_sep);
3411                                         } else {
3412                                                 fprintf(f, "%s%s", *list, list_sep);
3413                                         }
3414                                 }
3415                         }
3416                         break;
3417
3418                 case P_STRING:
3419                 case P_USTRING:
3420                         if (*(char **)ptr) {
3421                                 fprintf(f, "%s", *(char **)ptr);
3422                         }
3423                         break;
3424                 case P_SEP:
3425                         break;
3426         }
3427 }
3428
3429 /***************************************************************************
3430  Check if two parameters are equal.
3431 ***************************************************************************/
3432
3433 static bool equal_parameter(parm_type type, void *ptr1, void *ptr2)
3434 {
3435         switch (type) {
3436                 case P_BOOL:
3437                 case P_BOOLREV:
3438                         return (*((bool *)ptr1) == *((bool *)ptr2));
3439
3440                 case P_INTEGER:
3441                 case P_ENUM:
3442                 case P_OCTAL:
3443                 case P_BYTES:
3444                         return (*((int *)ptr1) == *((int *)ptr2));
3445
3446                 case P_CHAR:
3447                         return (*((char *)ptr1) == *((char *)ptr2));
3448
3449                 case P_LIST:
3450                 case P_CMDLIST:
3451                         return str_list_equal(*(const char ***)ptr1, *(const char ***)ptr2);
3452
3453                 case P_STRING:
3454                 case P_USTRING:
3455                 {
3456                         char *p1 = *(char **)ptr1, *p2 = *(char **)ptr2;
3457                         if (p1 && !*p1)
3458                                 p1 = NULL;
3459                         if (p2 && !*p2)
3460                                 p2 = NULL;
3461                         return (p1 == p2 || strequal(p1, p2));
3462                 }
3463                 case P_SEP:
3464                         break;
3465         }
3466         return false;
3467 }
3468
3469 /***************************************************************************
3470  Initialize any local variables in the sDefault table, after parsing a
3471  [globals] section.
3472 ***************************************************************************/
3473
3474 static void init_locals(void)
3475 {
3476         /*
3477          * We run this check once the [globals] is parsed, to force
3478          * the VFS objects and other per-share settings we need for
3479          * the standard way a AD DC is operated.  We may change these
3480          * as our code evolves, which is why we force these settings.
3481          *
3482          * We can't do this at the end of lp_load_ex(), as by that
3483          * point the services have been loaded and they will already
3484          * have "" as their vfs objects.
3485          */
3486         if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC) {
3487                 const char **vfs_objects = lp_vfs_objects(-1);
3488                 if (!vfs_objects || !vfs_objects[0]) {
3489                         if (lp_parm_const_string(-1, "xattr_tdb", "file", NULL)) {
3490                                 lp_do_parameter(-1, "vfs objects", "dfs_samba4 acl_xattr xattr_tdb");
3491                         } else if (lp_parm_const_string(-1, "posix", "eadb", NULL)) {
3492                                 lp_do_parameter(-1, "vfs objects", "dfs_samba4 acl_xattr posix_eadb");
3493                         } else {
3494                                 lp_do_parameter(-1, "vfs objects", "dfs_samba4 acl_xattr");
3495                         }
3496                 }
3497
3498                 lp_do_parameter(-1, "map hidden", "no");
3499                 lp_do_parameter(-1, "map system", "no");
3500                 lp_do_parameter(-1, "map readonly", "no");
3501                 lp_do_parameter(-1, "map archive", "no");
3502                 lp_do_parameter(-1, "store dos attributes", "yes");
3503                 lp_do_parameter(-1, "create mask", "0777");
3504                 lp_do_parameter(-1, "directory mask", "0777");
3505         }
3506 }
3507
3508 /***************************************************************************
3509  Process a new section (service). At this stage all sections are services.
3510  Later we'll have special sections that permit server parameters to be set.
3511  Returns true on success, false on failure.
3512 ***************************************************************************/
3513
3514 static bool do_section(const char *pszSectionName, void *userdata)
3515 {
3516         bool bRetval;
3517         bool isglobal = ((strwicmp(pszSectionName, GLOBAL_NAME) == 0) ||
3518                          (strwicmp(pszSectionName, GLOBAL_NAME2) == 0));
3519         bRetval = false;
3520
3521         /* if we were in a global section then do the local inits */
3522         if (bInGlobalSection && !isglobal)
3523                 init_locals();
3524
3525         /* if we've just struck a global section, note the fact. */
3526         bInGlobalSection = isglobal;
3527
3528         /* check for multiple global sections */
3529         if (bInGlobalSection) {
3530                 DEBUG(3, ("Processing section \"[%s]\"\n", pszSectionName));
3531                 return true;
3532         }
3533
3534         if (!bInGlobalSection && bGlobalOnly)
3535                 return true;
3536
3537         /* if we have a current service, tidy it up before moving on */
3538         bRetval = true;
3539
3540         if (iServiceIndex >= 0)
3541                 bRetval = service_ok(iServiceIndex);
3542
3543         /* if all is still well, move to the next record in the services array */
3544         if (bRetval) {
3545                 /* We put this here to avoid an odd message order if messages are */
3546                 /* issued by the post-processing of a previous section. */
3547                 DEBUG(2, ("Processing section \"[%s]\"\n", pszSectionName));
3548
3549                 iServiceIndex = add_a_service(&sDefault, pszSectionName);
3550                 if (iServiceIndex < 0) {
3551                         DEBUG(0, ("Failed to add a new service\n"));
3552                         return false;
3553                 }
3554                 /* Clean all parametric options for service */
3555                 /* They will be added during parsing again */
3556                 free_param_opts(&ServicePtrs[iServiceIndex]->param_opt);
3557         }
3558
3559         return bRetval;
3560 }
3561
3562
3563 /***************************************************************************
3564  Determine if a partcular base parameter is currentl set to the default value.
3565 ***************************************************************************/
3566
3567 static bool is_default(int i)
3568 {
3569         if (!defaults_saved)
3570                 return false;
3571         switch (parm_table[i].type) {
3572                 case P_LIST:
3573                 case P_CMDLIST:
3574                         return str_list_equal((const char **)parm_table[i].def.lvalue,
3575                                               *(const char ***)lp_parm_ptr(NULL,
3576                                                                            &parm_table[i]));
3577                 case P_STRING:
3578                 case P_USTRING:
3579                         return strequal(parm_table[i].def.svalue,
3580                                         *(char **)lp_parm_ptr(NULL,
3581                                                               &parm_table[i]));
3582                 case P_BOOL:
3583                 case P_BOOLREV:
3584                         return parm_table[i].def.bvalue ==
3585                                 *(bool *)lp_parm_ptr(NULL,
3586                                                      &parm_table[i]);
3587                 case P_CHAR:
3588                         return parm_table[i].def.cvalue ==
3589                                 *(char *)lp_parm_ptr(NULL,
3590                                                      &parm_table[i]);
3591                 case P_INTEGER:
3592                 case P_OCTAL:
3593                 case P_ENUM:
3594                 case P_BYTES:
3595                         return parm_table[i].def.ivalue ==
3596                                 *(int *)lp_parm_ptr(NULL,
3597                                                     &parm_table[i]);
3598                 case P_SEP:
3599                         break;
3600         }
3601         return false;
3602 }
3603
3604 /***************************************************************************
3605 Display the contents of the global structure.
3606 ***************************************************************************/
3607
3608 static void dump_globals(FILE *f)
3609 {
3610         int i;
3611         struct parmlist_entry *data;
3612
3613         fprintf(f, "[global]\n");
3614
3615         for (i = 0; parm_table[i].label; i++)
3616                 if (parm_table[i].p_class == P_GLOBAL &&
3617                     !(parm_table[i].flags & FLAG_META) &&
3618                     (i == 0 || (parm_table[i].offset != parm_table[i - 1].offset))) {
3619                         if (defaults_saved && is_default(i))
3620                                 continue;
3621                         fprintf(f, "\t%s = ", parm_table[i].label);
3622                         print_parameter(&parm_table[i], lp_parm_ptr(NULL,
3623                                                                     &parm_table[i]),
3624                                         f);
3625                         fprintf(f, "\n");
3626         }
3627         if (Globals.param_opt != NULL) {
3628                 data = Globals.param_opt;
3629                 while(data) {
3630                         fprintf(f, "\t%s = %s\n", data->key, data->value);
3631                         data = data->next;
3632                 }
3633         }
3634
3635 }
3636
3637 /***************************************************************************
3638  Return true if a local parameter is currently set to the global default.
3639 ***************************************************************************/
3640
3641 bool lp_is_default(int snum, struct parm_struct *parm)
3642 {
3643         return equal_parameter(parm->type,
3644                                lp_parm_ptr(ServicePtrs[snum], parm),
3645                                lp_parm_ptr(NULL, parm));
3646 }
3647
3648 /***************************************************************************
3649  Display the contents of a single services record.
3650 ***************************************************************************/
3651
3652 static void dump_a_service(struct loadparm_service *pService, FILE * f)
3653 {
3654         int i;
3655         struct parmlist_entry *data;
3656
3657         if (pService != &sDefault)
3658                 fprintf(f, "[%s]\n", pService->szService);
3659
3660         for (i = 0; parm_table[i].label; i++) {
3661
3662                 if (parm_table[i].p_class == P_LOCAL &&
3663                     !(parm_table[i].flags & FLAG_META) &&
3664                     (*parm_table[i].label != '-') &&
3665                     (i == 0 || (parm_table[i].offset != parm_table[i - 1].offset)))
3666                 {
3667                         if (pService == &sDefault) {
3668                                 if (defaults_saved && is_default(i))
3669                                         continue;
3670                         } else {
3671                                 if (equal_parameter(parm_table[i].type,
3672                                                     lp_parm_ptr(pService, &parm_table[i]),
3673                                                     lp_parm_ptr(NULL, &parm_table[i])))
3674                                         continue;
3675                         }
3676
3677                         fprintf(f, "\t%s = ", parm_table[i].label);
3678                         print_parameter(&parm_table[i],
3679                                         lp_parm_ptr(pService, &parm_table[i]),
3680                                         f);
3681                         fprintf(f, "\n");
3682                 }
3683         }
3684
3685                 if (pService->param_opt != NULL) {
3686                         data = pService->param_opt;
3687                         while(data) {
3688                                 fprintf(f, "\t%s = %s\n", data->key, data->value);
3689                                 data = data->next;
3690                         }
3691                 }
3692 }
3693
3694 /***************************************************************************
3695  Display the contents of a parameter of a single services record.
3696 ***************************************************************************/
3697
3698 bool dump_a_parameter(int snum, char *parm_name, FILE * f, bool isGlobal)
3699 {
3700         int i;
3701         bool result = false;
3702         parm_class p_class;
3703         unsigned flag = 0;
3704         fstring local_parm_name;
3705         char *parm_opt;
3706         const char *parm_opt_value;
3707
3708         /* check for parametrical option */
3709         fstrcpy( local_parm_name, parm_name);
3710         parm_opt = strchr( local_parm_name, ':');
3711
3712         if (parm_opt) {
3713                 *parm_opt = '\0';
3714                 parm_opt++;
3715                 if (strlen(parm_opt)) {
3716                         parm_opt_value = lp_parm_const_string( snum,
3717                                 local_parm_name, parm_opt, NULL);
3718                         if (parm_opt_value) {
3719                                 printf( "%s\n", parm_opt_value);
3720                                 result = true;
3721                         }
3722                 }
3723                 return result;
3724         }
3725
3726         /* check for a key and print the value */
3727         if (isGlobal) {
3728                 p_class = P_GLOBAL;
3729                 flag = FLAG_GLOBAL;
3730         } else
3731                 p_class = P_LOCAL;
3732
3733         for (i = 0; parm_table[i].label; i++) {
3734                 if (strwicmp(parm_table[i].label, parm_name) == 0 &&
3735                     !(parm_table[i].flags & FLAG_META) &&
3736                     (parm_table[i].p_class == p_class || parm_table[i].flags & flag) &&
3737                     (*parm_table[i].label != '-') &&
3738                     (i == 0 || (parm_table[i].offset != parm_table[i - 1].offset)))
3739                 {
3740                         void *ptr;
3741
3742                         if (isGlobal) {
3743                                 ptr = lp_parm_ptr(NULL,
3744                                                   &parm_table[i]);
3745                         } else {
3746                                 ptr = lp_parm_ptr(ServicePtrs[snum],
3747                                                   &parm_table[i]);
3748                         }
3749
3750                         print_parameter(&parm_table[i],
3751                                         ptr, f);
3752                         fprintf(f, "\n");
3753                         result = true;
3754                         break;
3755                 }
3756         }
3757
3758         return result;
3759 }
3760
3761 /***************************************************************************
3762  Return info about the requested parameter (given as a string).
3763  Return NULL when the string is not a valid parameter name.
3764 ***************************************************************************/
3765
3766 struct parm_struct *lp_get_parameter(const char *param_name)
3767 {
3768         int num = map_parameter(param_name);
3769
3770         if (num < 0) {
3771                 return NULL;
3772         }
3773
3774         return &parm_table[num];
3775 }
3776
3777 /***************************************************************************
3778  Return info about the next parameter in a service.
3779  snum==GLOBAL_SECTION_SNUM gives the globals.
3780  Return NULL when out of parameters.
3781 ***************************************************************************/
3782
3783 struct parm_struct *lp_next_parameter(int snum, int *i, int allparameters)
3784 {
3785         if (snum < 0) {
3786                 /* do the globals */
3787                 for (; parm_table[*i].label; (*i)++) {
3788                         if (parm_table[*i].p_class == P_SEPARATOR)
3789                                 return &parm_table[(*i)++];
3790
3791                         if ((*parm_table[*i].label == '-'))
3792                                 continue;
3793
3794                         if ((*i) > 0
3795                             && (parm_table[*i].offset ==
3796                                 parm_table[(*i) - 1].offset)
3797                             && (parm_table[*i].p_class ==
3798                                 parm_table[(*i) - 1].p_class))
3799                                 continue;
3800
3801                         if (is_default(*i) && !allparameters)
3802                                 continue;
3803
3804                         return &parm_table[(*i)++];
3805                 }
3806         } else {
3807                 struct loadparm_service *pService = ServicePtrs[snum];
3808
3809                 for (; parm_table[*i].label; (*i)++) {
3810                         if (parm_table[*i].p_class == P_SEPARATOR)
3811                                 return &parm_table[(*i)++];
3812
3813                         if (parm_table[*i].p_class == P_LOCAL &&
3814                             (*parm_table[*i].label != '-') &&
3815                             ((*i) == 0 ||
3816                              (parm_table[*i].offset !=
3817                               parm_table[(*i) - 1].offset)))
3818                         {
3819                                 if (allparameters ||
3820                                     !equal_parameter(parm_table[*i].type,
3821                                                      lp_parm_ptr(pService,
3822                                                                  &parm_table[*i]),
3823                                                      lp_parm_ptr(NULL,
3824                                                                  &parm_table[*i])))
3825                                 {
3826                                         return &parm_table[(*i)++];
3827                                 }
3828                         }
3829                 }
3830         }
3831
3832         return NULL;
3833 }
3834
3835
3836 #if 0
3837 /***************************************************************************
3838  Display the contents of a single copy structure.
3839 ***************************************************************************/
3840 static void dump_copy_map(bool *pcopymap)
3841 {
3842         int i;
3843         if (!pcopymap)
3844                 return;
3845
3846         printf("\n\tNon-Copied parameters:\n");
3847
3848         for (i = 0; parm_table[i].label; i++)
3849                 if (parm_table[i].p_class == P_LOCAL &&
3850                     parm_table[i].ptr && !pcopymap[i] &&
3851                     (i == 0 || (parm_table[i].ptr != parm_table[i - 1].ptr)))
3852                 {
3853                         printf("\t\t%s\n", parm_table[i].label);
3854                 }
3855 }
3856 #endif
3857
3858 /***************************************************************************
3859  Return TRUE if the passed service number is within range.
3860 ***************************************************************************/
3861
3862 bool lp_snum_ok(int iService)
3863 {
3864         return (LP_SNUM_OK(iService) && ServicePtrs[iService]->bAvailable);
3865 }
3866
3867 /***************************************************************************
3868  Auto-load some home services.
3869 ***************************************************************************/
3870
3871 static void lp_add_auto_services(char *str)
3872 {
3873         char *s;
3874         char *p;
3875         int homes;
3876         char *saveptr;
3877
3878         if (!str)
3879                 return;
3880
3881         s = SMB_STRDUP(str);
3882         if (!s)
3883                 return;
3884
3885         homes = lp_servicenumber(HOMES_NAME);
3886
3887         for (p = strtok_r(s, LIST_SEP, &saveptr); p;
3888              p = strtok_r(NULL, LIST_SEP, &saveptr)) {
3889                 char *home;
3890
3891                 if (lp_servicenumber(p) >= 0)
3892                         continue;
3893
3894                 home = get_user_home_dir(talloc_tos(), p);
3895
3896                 if (home && home[0] && homes >= 0)
3897                         lp_add_home(p, homes, p, home);
3898
3899                 TALLOC_FREE(home);
3900         }
3901         SAFE_FREE(s);
3902 }
3903
3904 /***************************************************************************
3905  Auto-load one printer.
3906 ***************************************************************************/
3907
3908 void lp_add_one_printer(const char *name, const char *comment,
3909                         const char *location, void *pdata)
3910 {
3911         int printers = lp_servicenumber(PRINTERS_NAME);
3912         int i;
3913
3914         if (lp_servicenumber(name) < 0) {
3915                 lp_add_printer(name, printers);
3916                 if ((i = lp_servicenumber(name)) >= 0) {
3917                         string_set(&ServicePtrs[i]->comment, comment);
3918                         ServicePtrs[i]->autoloaded = true;
3919                 }
3920         }
3921 }
3922
3923 /***************************************************************************
3924  Have we loaded a services file yet?
3925 ***************************************************************************/
3926
3927 bool lp_loaded(void)
3928 {
3929         return (bLoaded);
3930 }
3931
3932 /***************************************************************************
3933  Unload unused services.
3934 ***************************************************************************/
3935
3936 void lp_killunused(struct smbd_server_connection *sconn,
3937                    bool (*snumused) (struct smbd_server_connection *, int))
3938 {
3939         int i;
3940         for (i = 0; i < iNumServices; i++) {
3941                 if (!VALID(i))
3942                         continue;
3943
3944                 /* don't kill autoloaded or usershare services */
3945                 if ( ServicePtrs[i]->autoloaded ||
3946                                 ServicePtrs[i]->usershare == USERSHARE_VALID) {
3947                         continue;
3948                 }
3949
3950                 if (!snumused || !snumused(sconn, i)) {
3951                         free_service_byindex(i);
3952                 }
3953         }
3954 }
3955
3956 /**
3957  * Kill all except autoloaded and usershare services - convenience wrapper
3958  */
3959 void lp_kill_all_services(void)
3960 {
3961         lp_killunused(NULL, NULL);
3962 }
3963
3964 /***************************************************************************
3965  Unload a service.
3966 ***************************************************************************/
3967
3968 void lp_killservice(int iServiceIn)
3969 {
3970         if (VALID(iServiceIn)) {
3971                 free_service_byindex(iServiceIn);
3972         }
3973 }
3974
3975 /***************************************************************************
3976  Save the curent values of all global and sDefault parameters into the
3977  defaults union. This allows swat and testparm to show only the
3978  changed (ie. non-default) parameters.
3979 ***************************************************************************/
3980
3981 static void lp_save_defaults(void)
3982 {
3983         int i;
3984         for (i = 0; parm_table[i].label; i++) {
3985                 if (i > 0 && parm_table[i].offset == parm_table[i - 1].offset
3986                     && parm_table[i].p_class == parm_table[i - 1].p_class)
3987                         continue;
3988                 switch (parm_table[i].type) {
3989                         case P_LIST:
3990                         case P_CMDLIST:
3991                                 parm_table[i].def.lvalue = str_list_copy(
3992                                         NULL, *(const char ***)lp_parm_ptr(NULL, &parm_table[i]));
3993                                 break;
3994                         case P_STRING:
3995                         case P_USTRING:
3996                                 parm_table[i].def.svalue = SMB_STRDUP(*(char **)lp_parm_ptr(NULL, &parm_table[i]));
3997                                 break;
3998                         case P_BOOL:
3999                         case P_BOOLREV:
4000                                 parm_table[i].def.bvalue =
4001                                         *(bool *)lp_parm_ptr(NULL, &parm_table[i]);
4002                                 break;
4003                         case P_CHAR:
4004                                 parm_table[i].def.cvalue =
4005                                         *(char *)lp_parm_ptr(NULL, &parm_table[i]);
4006                                 break;
4007                         case P_INTEGER:
4008                         case P_OCTAL:
4009                         case P_ENUM:
4010                         case P_BYTES:
4011                                 parm_table[i].def.ivalue =
4012                                         *(int *)lp_parm_ptr(NULL, &parm_table[i]);
4013                                 break;
4014                         case P_SEP:
4015                                 break;
4016                 }
4017         }
4018         defaults_saved = true;
4019 }
4020
4021 /***********************************************************
4022  If we should send plaintext/LANMAN passwords in the clinet
4023 ************************************************************/
4024
4025 static void set_allowed_client_auth(void)
4026 {
4027         if (Globals.bClientNTLMv2Auth) {
4028                 Globals.bClientLanManAuth = false;
4029         }
4030         if (!Globals.bClientLanManAuth) {
4031                 Globals.bClientPlaintextAuth = false;
4032         }
4033 }
4034
4035 /***************************************************************************
4036  JRA.
4037  The following code allows smbd to read a user defined share file.
4038  Yes, this is my intent. Yes, I'm comfortable with that...
4039
4040  THE FOLLOWING IS SECURITY CRITICAL CODE.
4041
4042  It washes your clothes, it cleans your house, it guards you while you sleep...
4043  Do not f%^k with it....
4044 ***************************************************************************/
4045
4046 #define MAX_USERSHARE_FILE_SIZE (10*1024)
4047
4048 /***************************************************************************
4049  Check allowed stat state of a usershare file.
4050  Ensure we print out who is dicking with us so the admin can
4051  get their sorry ass fired.
4052 ***************************************************************************/
4053
4054 static bool check_usershare_stat(const char *fname,
4055                                  const SMB_STRUCT_STAT *psbuf)
4056 {
4057         if (!S_ISREG(psbuf->st_ex_mode)) {
4058                 DEBUG(0,("check_usershare_stat: file %s owned by uid %u is "
4059                         "not a regular file\n",
4060                         fname, (unsigned int)psbuf->st_ex_uid ));
4061                 return false;
4062         }
4063
4064         /* Ensure this doesn't have the other write bit set. */
4065         if (psbuf->st_ex_mode & S_IWOTH) {
4066                 DEBUG(0,("check_usershare_stat: file %s owned by uid %u allows "
4067                         "public write. Refusing to allow as a usershare file.\n",
4068                         fname, (unsigned int)psbuf->st_ex_uid ));
4069                 return false;
4070         }
4071
4072         /* Should be 10k or less. */
4073         if (psbuf->st_ex_size > MAX_USERSHARE_FILE_SIZE) {
4074                 DEBUG(0,("check_usershare_stat: file %s owned by uid %u is "
4075                         "too large (%u) to be a user share file.\n",
4076                         fname, (unsigned int)psbuf->st_ex_uid,
4077                         (unsigned int)psbuf->st_ex_size ));
4078                 return false;
4079         }
4080
4081         return true;
4082 }
4083
4084 /***************************************************************************
4085  Parse the contents of a usershare file.
4086 ***************************************************************************/
4087
4088 enum usershare_err parse_usershare_file(TALLOC_CTX *ctx,
4089                         SMB_STRUCT_STAT *psbuf,
4090                         const char *servicename,
4091                         int snum,
4092                         char **lines,
4093                         int numlines,
4094                         char **pp_sharepath,
4095                         char **pp_comment,
4096                         char **pp_cp_servicename,
4097                         struct security_descriptor **ppsd,
4098                         bool *pallow_guest)
4099 {
4100         const char **prefixallowlist = lp_usershare_prefix_allow_list();
4101         const char **prefixdenylist = lp_usershare_prefix_deny_list();
4102         int us_vers;
4103         DIR *dp;
4104         SMB_STRUCT_STAT sbuf;
4105         char *sharepath = NULL;
4106         char *comment = NULL;
4107
4108         *pp_sharepath = NULL;
4109         *pp_comment = NULL;
4110
4111         *pallow_guest = false;
4112
4113         if (numlines < 4) {
4114                 return USERSHARE_MALFORMED_FILE;
4115         }
4116
4117         if (strcmp(lines[0], "#VERSION 1") == 0) {
4118                 us_vers = 1;
4119         } else if (strcmp(lines[0], "#VERSION 2") == 0) {
4120                 us_vers = 2;
4121                 if (numlines < 5) {
4122                         return USERSHARE_MALFORMED_FILE;
4123                 }
4124         } else {
4125                 return USERSHARE_BAD_VERSION;
4126         }
4127
4128         if (strncmp(lines[1], "path=", 5) != 0) {
4129                 return USERSHARE_MALFORMED_PATH;
4130         }
4131
4132         sharepath = talloc_strdup(ctx, &lines[1][5]);
4133         if (!sharepath) {
4134                 return USERSHARE_POSIX_ERR;
4135         }
4136         trim_string(sharepath, " ", " ");
4137
4138         if (strncmp(lines[2], "comment=", 8) != 0) {
4139                 return USERSHARE_MALFORMED_COMMENT_DEF;
4140         }
4141
4142         comment = talloc_strdup(ctx, &lines[2][8]);
4143         if (!comment) {
4144                 return USERSHARE_POSIX_ERR;
4145         }
4146         trim_string(comment, " ", " ");
4147         trim_char(comment, '"', '"');
4148
4149         if (strncmp(lines[3], "usershare_acl=", 14) != 0) {
4150                 return USERSHARE_MALFORMED_ACL_DEF;
4151         }
4152
4153         if (!parse_usershare_acl(ctx, &lines[3][14], ppsd)) {
4154                 return USERSHARE_ACL_ERR;
4155         }
4156
4157         if (us_vers == 2) {
4158                 if (strncmp(lines[4], "guest_ok=", 9) != 0) {
4159                         return USERSHARE_MALFORMED_ACL_DEF;
4160                 }
4161                 if (lines[4][9] == 'y') {
4162                         *pallow_guest = true;
4163                 }
4164
4165                 /* Backwards compatible extension to file version #2. */
4166                 if (numlines > 5) {
4167                         if (strncmp(lines[5], "sharename=", 10) != 0) {
4168                                 return USERSHARE_MALFORMED_SHARENAME_DEF;
4169                         }
4170                         if (!strequal(&lines[5][10], servicename)) {
4171                                 return USERSHARE_BAD_SHARENAME;
4172                         }
4173                         *pp_cp_servicename = talloc_strdup(ctx, &lines[5][10]);
4174                         if (!*pp_cp_servicename) {
4175                                 return USERSHARE_POSIX_ERR;
4176                         }
4177                 }
4178         }
4179
4180         if (*pp_cp_servicename == NULL) {
4181                 *pp_cp_servicename = talloc_strdup(ctx, servicename);
4182                 if (!*pp_cp_servicename) {
4183                         return USERSHARE_POSIX_ERR;
4184                 }
4185         }
4186
4187         if (snum != -1 && (strcmp(sharepath, ServicePtrs[snum]->szPath) == 0)) {
4188                 /* Path didn't change, no checks needed. */
4189                 *pp_sharepath = sharepath;
4190                 *pp_comment = comment;
4191                 return USERSHARE_OK;
4192         }
4193
4194         /* The path *must* be absolute. */
4195         if (sharepath[0] != '/') {
4196                 DEBUG(2,("parse_usershare_file: share %s: path %s is not an absolute path.\n",
4197                         servicename, sharepath));
4198                 return USERSHARE_PATH_NOT_ABSOLUTE;
4199         }
4200
4201         /* If there is a usershare prefix deny list ensure one of these paths
4202            doesn't match the start of the user given path. */
4203         if (prefixdenylist) {
4204                 int i;
4205                 for ( i=0; prefixdenylist[i]; i++ ) {
4206                         DEBUG(10,("parse_usershare_file: share %s : checking prefixdenylist[%d]='%s' against %s\n",
4207                                 servicename, i, prefixdenylist[i], sharepath ));
4208                         if (memcmp( sharepath, prefixdenylist[i], strlen(prefixdenylist[i])) == 0) {
4209                                 DEBUG(2,("parse_usershare_file: share %s path %s starts with one of the "
4210                                         "usershare prefix deny list entries.\n",
4211                                         servicename, sharepath));
4212                                 return USERSHARE_PATH_IS_DENIED;
4213                         }
4214                 }
4215         }
4216
4217         /* If there is a usershare prefix allow list ensure one of these paths
4218            does match the start of the user given path. */
4219
4220         if (prefixallowlist) {
4221                 int i;
4222                 for ( i=0; prefixallowlist[i]; i++ ) {
4223                         DEBUG(10,("parse_usershare_file: share %s checking prefixallowlist[%d]='%s' against %s\n",
4224                                 servicename, i, prefixallowlist[i], sharepath ));
4225                         if (memcmp( sharepath, prefixallowlist[i], strlen(prefixallowlist[i])) == 0) {
4226                                 break;
4227                         }
4228                 }
4229                 if (prefixallowlist[i] == NULL) {
4230                         DEBUG(2,("parse_usershare_file: share %s path %s doesn't start with one of the "
4231                                 "usershare prefix allow list entries.\n",
4232                                 servicename, sharepath));
4233                         return USERSHARE_PATH_NOT_ALLOWED;
4234                 }
4235         }
4236
4237         /* Ensure this is pointing to a directory. */
4238         dp = opendir(sharepath);
4239
4240         if (!dp) {
4241                 DEBUG(2,("parse_usershare_file: share %s path %s is not a directory.\n",
4242                         servicename, sharepath));
4243                 return USERSHARE_PATH_NOT_DIRECTORY;
4244         }
4245
4246         /* Ensure the owner of the usershare file has permission to share
4247            this directory. */
4248
4249         if (sys_stat(sharepath, &sbuf, false) == -1) {
4250                 DEBUG(2,("parse_usershare_file: share %s : stat failed on path %s. %s\n",
4251                         servicename, sharepath, strerror(errno) ));
4252                 closedir(dp);
4253                 return USERSHARE_POSIX_ERR;
4254         }
4255
4256         closedir(dp);
4257
4258         if (!S_ISDIR(sbuf.st_ex_mode)) {
4259                 DEBUG(2,("parse_usershare_file: share %s path %s is not a directory.\n",
4260                         servicename, sharepath ));
4261                 return USERSHARE_PATH_NOT_DIRECTORY;
4262         }
4263
4264         /* Check if sharing is restricted to owner-only. */
4265         /* psbuf is the stat of the usershare definition file,
4266            sbuf is the stat of the target directory to be shared. */
4267
4268         if (lp_usershare_owner_only()) {
4269                 /* root can share anything. */
4270                 if ((psbuf->st_ex_uid != 0) && (sbuf.st_ex_uid != psbuf->st_ex_uid)) {
4271                         return USERSHARE_PATH_NOT_ALLOWED;
4272                 }
4273         }
4274
4275         *pp_sharepath = sharepath;
4276         *pp_comment = comment;
4277         return USERSHARE_OK;
4278 }
4279
4280 /***************************************************************************
4281  Deal with a usershare file.
4282  Returns:
4283         >= 0 - snum
4284         -1 - Bad name, invalid contents.
4285            - service name already existed and not a usershare, problem
4286             with permissions to share directory etc.
4287 ***************************************************************************/
4288
4289 static int process_usershare_file(const char *dir_name, const char *file_name, int snum_template)
4290 {
4291         SMB_STRUCT_STAT sbuf;
4292         SMB_STRUCT_STAT lsbuf;
4293         char *fname = NULL;
4294         char *sharepath = NULL;
4295         char *comment = NULL;
4296         char *cp_service_name = NULL;
4297         char **lines = NULL;
4298         int numlines = 0;
4299         int fd = -1;
4300         int iService = -1;
4301         TALLOC_CTX *ctx = talloc_stackframe();
4302         struct security_descriptor *psd = NULL;
4303         bool guest_ok = false;
4304         char *canon_name = NULL;
4305         bool added_service = false;
4306         int ret = -1;
4307
4308         /* Ensure share name doesn't contain invalid characters. */
4309         if (!validate_net_name(file_name, INVALID_SHARENAME_CHARS, strlen(file_name))) {
4310                 DEBUG(0,("process_usershare_file: share name %s contains "
4311                         "invalid characters (any of %s)\n",
4312                         file_name, INVALID_SHARENAME_CHARS ));
4313                 goto out;
4314         }
4315
4316         canon_name = canonicalize_servicename(ctx, file_name);
4317         if (!canon_name) {
4318                 goto out;
4319         }
4320
4321         fname = talloc_asprintf(ctx, "%s/%s", dir_name, file_name);
4322         if (!fname) {
4323                 goto out;
4324         }
4325
4326         /* Minimize the race condition by doing an lstat before we
4327            open and fstat. Ensure this isn't a symlink link. */
4328
4329         if (sys_lstat(fname, &lsbuf, false) != 0) {
4330                 DEBUG(0,("process_usershare_file: stat of %s failed. %s\n",
4331                         fname, strerror(errno) ));
4332                 goto out;
4333         }
4334
4335         /* This must be a regular file, not a symlink, directory or
4336            other strange filetype. */
4337         if (!check_usershare_stat(fname, &lsbuf)) {
4338                 goto out;
4339         }
4340
4341         {
4342                 TDB_DATA data;
4343                 NTSTATUS status;
4344
4345                 status = dbwrap_fetch_bystring(ServiceHash, canon_name,
4346                                                canon_name, &data);
4347
4348                 iService = -1;
4349
4350                 if (NT_STATUS_IS_OK(status) &&
4351                     (data.dptr != NULL) &&
4352                     (data.dsize == sizeof(iService))) {
4353                         memcpy(&iService, data.dptr, sizeof(iService));
4354                 }
4355         }
4356
4357         if (iService != -1 &&
4358             timespec_compare(&ServicePtrs[iService]->usershare_last_mod,
4359                              &lsbuf.st_ex_mtime) == 0) {
4360                 /* Nothing changed - Mark valid and return. */
4361                 DEBUG(10,("process_usershare_file: service %s not changed.\n",
4362                         canon_name ));
4363                 ServicePtrs[iService]->usershare = USERSHARE_VALID;
4364                 ret = iService;
4365                 goto out;
4366         }
4367
4368         /* Try and open the file read only - no symlinks allowed. */
4369 #ifdef O_NOFOLLOW
4370         fd = open(fname, O_RDONLY|O_NOFOLLOW, 0);
4371 #else
4372         fd = open(fname, O_RDONLY, 0);
4373 #endif
4374
4375         if (fd == -1) {
4376                 DEBUG(0,("process_usershare_file: unable to open %s. %s\n",
4377                         fname, strerror(errno) ));
4378                 goto out;
4379         }
4380
4381         /* Now fstat to be *SURE* it's a regular file. */
4382         if (sys_fstat(fd, &sbuf, false) != 0) {
4383                 close(fd);
4384                 DEBUG(0,("process_usershare_file: fstat of %s failed. %s\n",
4385                         fname, strerror(errno) ));
4386                 goto out;
4387         }
4388
4389         /* Is it the same dev/inode as was lstated ? */
4390         if (!check_same_stat(&lsbuf, &sbuf)) {
4391                 close(fd);
4392                 DEBUG(0,("process_usershare_file: fstat of %s is a different file from lstat. "
4393                         "Symlink spoofing going on ?\n", fname ));
4394                 goto out;
4395         }
4396
4397         /* This must be a regular file, not a symlink, directory or
4398            other strange filetype. */
4399         if (!check_usershare_stat(fname, &sbuf)) {
4400                 goto out;
4401         }
4402
4403         lines = fd_lines_load(fd, &numlines, MAX_USERSHARE_FILE_SIZE, NULL);
4404
4405         close(fd);
4406         if (lines == NULL) {
4407                 DEBUG(0,("process_usershare_file: loading file %s owned by %u failed.\n",
4408                         fname, (unsigned int)sbuf.st_ex_uid ));
4409                 goto out;
4410         }
4411
4412         if (parse_usershare_file(ctx, &sbuf, file_name,
4413                         iService, lines, numlines, &sharepath,
4414                         &comment, &cp_service_name,
4415                         &psd, &guest_ok) != USERSHARE_OK) {
4416                 goto out;
4417         }
4418
4419         /* Everything ok - add the service possibly using a template. */
4420         if (iService < 0) {
4421                 const struct loadparm_service *sp = &sDefault;
4422                 if (snum_template != -1) {
4423                         sp = ServicePtrs[snum_template];
4424                 }
4425
4426                 if ((iService = add_a_service(sp, cp_service_name)) < 0) {
4427                         DEBUG(0, ("process_usershare_file: Failed to add "
4428                                 "new service %s\n", cp_service_name));
4429                         goto out;
4430                 }
4431
4432                 added_service = true;
4433
4434                 /* Read only is controlled by usershare ACL below. */
4435                 ServicePtrs[iService]->bRead_only = false;
4436         }
4437
4438         /* Write the ACL of the new/modified share. */
4439         if (!set_share_security(canon_name, psd)) {
4440                  DEBUG(0, ("process_usershare_file: Failed to set share "
4441                         "security for user share %s\n",
4442                         canon_name ));
4443                 goto out;
4444         }
4445
4446         /* If from a template it may be marked invalid. */
4447         ServicePtrs[iService]->valid = true;
4448
4449         /* Set the service as a valid usershare. */
4450         ServicePtrs[iService]->usershare = USERSHARE_VALID;
4451
4452         /* Set guest access. */
4453         if (lp_usershare_allow_guests()) {
4454                 ServicePtrs[iService]->bGuest_ok = guest_ok;
4455         }
4456
4457         /* And note when it was loaded. */
4458         ServicePtrs[iService]->usershare_last_mod = sbuf.st_ex_mtime;
4459         string_set(&ServicePtrs[iService]->szPath, sharepath);
4460         string_set(&ServicePtrs[iService]->comment, comment);
4461
4462         ret = iService;
4463
4464   out:
4465
4466         if (ret == -1 && iService != -1 && added_service) {
4467                 lp_remove_service(iService);
4468         }
4469
4470         TALLOC_FREE(lines);
4471         TALLOC_FREE(ctx);
4472         return ret;
4473 }
4474
4475 /***************************************************************************
4476  Checks if a usershare entry has been modified since last load.
4477 ***************************************************************************/
4478
4479 static bool usershare_exists(int iService, struct timespec *last_mod)
4480 {
4481         SMB_STRUCT_STAT lsbuf;
4482         const char *usersharepath = Globals.szUsersharePath;
4483         char *fname;
4484
4485         if (asprintf(&fname, "%s/%s",
4486                                 usersharepath,
4487                                 ServicePtrs[iService]->szService) < 0) {
4488                 return false;
4489         }
4490
4491         if (sys_lstat(fname, &lsbuf, false) != 0) {
4492                 SAFE_FREE(fname);
4493                 return false;
4494         }
4495
4496         if (!S_ISREG(lsbuf.st_ex_mode)) {
4497                 SAFE_FREE(fname);
4498                 return false;
4499         }
4500
4501         SAFE_FREE(fname);
4502         *last_mod = lsbuf.st_ex_mtime;
4503         return true;
4504 }
4505
4506 /***************************************************************************
4507  Load a usershare service by name. Returns a valid servicenumber or -1.
4508 ***************************************************************************/
4509
4510 int load_usershare_service(const char *servicename)
4511 {
4512         SMB_STRUCT_STAT sbuf;
4513         const char *usersharepath = Globals.szUsersharePath;
4514         int max_user_shares = Globals.iUsershareMaxShares;
4515         int snum_template = -1;
4516
4517         if (*usersharepath == 0 ||  max_user_shares == 0) {
4518                 return -1;
4519         }
4520
4521         if (sys_stat(usersharepath, &sbuf, false) != 0) {
4522                 DEBUG(0,("load_usershare_service: stat of %s failed. %s\n",
4523                         usersharepath, strerror(errno) ));
4524                 return -1;
4525         }
4526
4527         if (!S_ISDIR(sbuf.st_ex_mode)) {
4528                 DEBUG(0,("load_usershare_service: %s is not a directory.\n",
4529                         usersharepath ));
4530                 return -1;
4531         }
4532
4533         /*
4534          * This directory must be owned by root, and have the 't' bit set.
4535          * It also must not be writable by "other".
4536          */
4537
4538 #ifdef S_ISVTX
4539         if (sbuf.st_ex_uid != 0 || !(sbuf.st_ex_mode & S_ISVTX) || (sbuf.st_ex_mode & S_IWOTH)) {
4540 #else
4541         if (sbuf.st_ex_uid != 0 || (sbuf.st_ex_mode & S_IWOTH)) {
4542 #endif
4543                 DEBUG(0,("load_usershare_service: directory %s is not owned by root "
4544                         "or does not have the sticky bit 't' set or is writable by anyone.\n",
4545                         usersharepath ));
4546                 return -1;
4547         }
4548
4549         /* Ensure the template share exists if it's set. */
4550         if (Globals.szUsershareTemplateShare[0]) {
4551                 /* We can't use lp_servicenumber here as we are recommending that
4552                    template shares have -valid=false set. */
4553                 for (snum_template = iNumServices - 1; snum_template >= 0; snum_template--) {
4554                         if (ServicePtrs[snum_template]->szService &&
4555                                         strequal(ServicePtrs[snum_template]->szService,
4556                                                 Globals.szUsershareTemplateShare)) {
4557                                 break;
4558                         }
4559                 }
4560
4561                 if (snum_template == -1) {
4562                         DEBUG(0,("load_usershare_service: usershare template share %s "
4563                                 "does not exist.\n",
4564                                 Globals.szUsershareTemplateShare ));
4565                         return -1;
4566                 }
4567         }
4568
4569         return process_usershare_file(usersharepath, servicename, snum_template);
4570 }
4571
4572 /***************************************************************************
4573  Load all user defined shares from the user share directory.
4574  We only do this if we're enumerating the share list.
4575  This is the function that can delete usershares that have
4576  been removed.
4577 ***************************************************************************/
4578
4579 int load_usershare_shares(struct smbd_server_connection *sconn,
4580                           bool (*snumused) (struct smbd_server_connection *, int))
4581 {
4582         DIR *dp;
4583         SMB_STRUCT_STAT sbuf;
4584         struct dirent *de;
4585         int num_usershares = 0;
4586         int max_user_shares = Globals.iUsershareMaxShares;
4587         unsigned int num_dir_entries, num_bad_dir_entries, num_tmp_dir_entries;
4588         unsigned int allowed_bad_entries = ((2*max_user_shares)/10);
4589         unsigned int allowed_tmp_entries = ((2*max_user_shares)/10);
4590         int iService;
4591         int snum_template = -1;
4592         const char *usersharepath = Globals.szUsersharePath;
4593         int ret = lp_numservices();
4594         TALLOC_CTX *tmp_ctx;
4595
4596         if (max_user_shares == 0 || *usersharepath == '\0') {
4597                 return lp_numservices();
4598         }
4599
4600         if (sys_stat(usersharepath, &sbuf, false) != 0) {
4601                 DEBUG(0,("load_usershare_shares: stat of %s failed. %s\n",
4602                         usersharepath, strerror(errno) ));
4603                 return ret;
4604         }
4605
4606         /*
4607          * This directory must be owned by root, and have the 't' bit set.
4608          * It also must not be writable by "other".
4609          */
4610
4611 #ifdef S_ISVTX
4612         if (sbuf.st_ex_uid != 0 || !(sbuf.st_ex_mode & S_ISVTX) || (sbuf.st_ex_mode & S_IWOTH)) {
4613 #else
4614         if (sbuf.st_ex_uid != 0 || (sbuf.st_ex_mode & S_IWOTH)) {
4615 #endif
4616                 DEBUG(0,("load_usershare_shares: directory %s is not owned by root "
4617                         "or does not have the sticky bit 't' set or is writable by anyone.\n",
4618                         usersharepath ));
4619                 return ret;
4620         }
4621
4622         /* Ensure the template share exists if it's set. */
4623         if (Globals.szUsershareTemplateShare[0]) {
4624                 /* We can't use lp_servicenumber here as we are recommending that
4625                    template shares have -valid=false set. */
4626                 for (snum_template = iNumServices - 1; snum_template >= 0; snum_template--) {
4627                         if (ServicePtrs[snum_template]->szService &&
4628                                         strequal(ServicePtrs[snum_template]->szService,
4629                                                 Globals.szUsershareTemplateShare)) {
4630                                 break;
4631                         }
4632                 }
4633
4634                 if (snum_template == -1) {
4635                         DEBUG(0,("load_usershare_shares: usershare template share %s "
4636                                 "does not exist.\n",
4637                                 Globals.szUsershareTemplateShare ));
4638                         return ret;
4639                 }
4640         }
4641
4642         /* Mark all existing usershares as pending delete. */
4643         for (iService = iNumServices - 1; iService >= 0; iService--) {
4644                 if (VALID(iService) && ServicePtrs[iService]->usershare) {
4645                         ServicePtrs[iService]->usershare = USERSHARE_PENDING_DELETE;
4646                 }
4647         }
4648
4649         dp = opendir(usersharepath);
4650         if (!dp) {
4651                 DEBUG(0,("load_usershare_shares:: failed to open directory %s. %s\n",
4652                         usersharepath, strerror(errno) ));
4653                 return ret;
4654         }
4655
4656         for (num_dir_entries = 0, num_bad_dir_entries = 0, num_tmp_dir_entries = 0;
4657                         (de = readdir(dp));
4658                         num_dir_entries++ ) {
4659                 int r;
4660                 const char *n = de->d_name;
4661
4662                 /* Ignore . and .. */
4663                 if (*n == '.') {
4664                         if ((n[1] == '\0') || (n[1] == '.' && n[2] == '\0')) {
4665                                 continue;
4666                         }
4667                 }
4668
4669                 if (n[0] == ':') {
4670                         /* Temporary file used when creating a share. */
4671                         num_tmp_dir_entries++;
4672                 }
4673
4674                 /* Allow 20% tmp entries. */
4675                 if (num_tmp_dir_entries > allowed_tmp_entries) {
4676                         DEBUG(0,("load_usershare_shares: too many temp entries (%u) "
4677                                 "in directory %s\n",
4678                                 num_tmp_dir_entries, usersharepath));
4679                         break;
4680                 }
4681
4682                 r = process_usershare_file(usersharepath, n, snum_template);
4683                 if (r == 0) {
4684                         /* Update the services count. */
4685                         num_usershares++;
4686                         if (num_usershares >= max_user_shares) {
4687                                 DEBUG(0,("load_usershare_shares: max user shares reached "
4688                                         "on file %s in directory %s\n",
4689                                         n, usersharepath ));
4690                                 break;
4691                         }
4692                 } else if (r == -1) {
4693                         num_bad_dir_entries++;
4694                 }
4695
4696                 /* Allow 20% bad entries. */
4697                 if (num_bad_dir_entries > allowed_bad_entries) {
4698                         DEBUG(0,("load_usershare_shares: too many bad entries (%u) "
4699                                 "in directory %s\n",
4700                                 num_bad_dir_entries, usersharepath));
4701                         break;
4702                 }
4703
4704                 /* Allow 20% bad entries. */
4705                 if (num_dir_entries > max_user_shares + allowed_bad_entries) {
4706                         DEBUG(0,("load_usershare_shares: too many total entries (%u) "
4707                         "in directory %s\n",
4708                         num_dir_entries, usersharepath));
4709                         break;
4710                 }
4711         }
4712
4713         closedir(dp);
4714
4715         /* Sweep through and delete any non-refreshed usershares that are
4716            not currently in use. */
4717         tmp_ctx = talloc_stackframe();
4718         for (iService = iNumServices - 1; iService >= 0; iService--) {
4719                 if (VALID(iService) && (ServicePtrs[iService]->usershare == USERSHARE_PENDING_DELETE)) {
4720                         char *servname;
4721
4722                         if (snumused && snumused(sconn, iService)) {
4723                                 continue;
4724                         }
4725
4726                         servname = lp_servicename(tmp_ctx, iService);
4727
4728                         /* Remove from the share ACL db. */
4729                         DEBUG(10,("load_usershare_shares: Removing deleted usershare %s\n",
4730                                   servname ));
4731                         delete_share_security(servname);
4732                         free_service_byindex(iService);
4733                 }
4734         }
4735         talloc_free(tmp_ctx);
4736
4737         return lp_numservices();
4738 }
4739
4740 /********************************************************
4741  Destroy global resources allocated in this file
4742 ********************************************************/
4743
4744 void gfree_loadparm(void)
4745 {
4746         int i;
4747
4748         free_file_list();
4749
4750         /* Free resources allocated to services */
4751
4752         for ( i = 0; i < iNumServices; i++ ) {
4753                 if ( VALID(i) ) {
4754                         free_service_byindex(i);
4755                 }
4756         }
4757
4758         SAFE_FREE( ServicePtrs );
4759         iNumServices = 0;
4760
4761         /* Now release all resources allocated to global
4762            parameters and the default service */
4763
4764         free_global_parameters();
4765 }
4766
4767
4768 /***************************************************************************
4769  Allow client apps to specify that they are a client
4770 ***************************************************************************/
4771 static void lp_set_in_client(bool b)
4772 {
4773     in_client = b;
4774 }
4775
4776
4777 /***************************************************************************
4778  Determine if we're running in a client app
4779 ***************************************************************************/
4780 static bool lp_is_in_client(void)
4781 {
4782     return in_client;
4783 }
4784
4785 /***************************************************************************
4786  Load the services array from the services file. Return true on success,
4787  false on failure.
4788 ***************************************************************************/
4789
4790 static bool lp_load_ex(const char *pszFname,
4791                        bool global_only,
4792                        bool save_defaults,
4793                        bool add_ipc,
4794                        bool initialize_globals,
4795                        bool allow_include_registry,
4796                        bool load_all_shares)
4797 {
4798         char *n2 = NULL;
4799         bool bRetval;
4800
4801         bRetval = false;
4802
4803         DEBUG(3, ("lp_load_ex: refreshing parameters\n"));
4804
4805         bInGlobalSection = true;
4806         bGlobalOnly = global_only;
4807         bAllowIncludeRegistry = allow_include_registry;
4808
4809         init_globals(initialize_globals);
4810
4811         free_file_list();
4812
4813         if (save_defaults) {
4814                 init_locals();
4815                 lp_save_defaults();
4816         }
4817
4818         if (!initialize_globals) {
4819                 free_param_opts(&Globals.param_opt);
4820                 apply_lp_set_cmdline();
4821         }
4822
4823         lp_do_parameter(-1, "idmap config * : backend", Globals.szIdmapBackend);
4824
4825         /* We get sections first, so have to start 'behind' to make up */
4826         iServiceIndex = -1;
4827
4828         if (lp_config_backend_is_file()) {
4829                 n2 = talloc_sub_basic(talloc_tos(), get_current_username(),
4830                                         current_user_info.domain,
4831                                         pszFname);
4832                 if (!n2) {
4833                         smb_panic("lp_load_ex: out of memory");
4834                 }
4835
4836                 add_to_file_list(pszFname, n2);
4837
4838                 bRetval = pm_process(n2, do_section, do_parameter, NULL);
4839                 TALLOC_FREE(n2);
4840
4841                 /* finish up the last section */
4842                 DEBUG(4, ("pm_process() returned %s\n", BOOLSTR(bRetval)));
4843                 if (bRetval) {
4844                         if (iServiceIndex >= 0) {
4845                                 bRetval = service_ok(iServiceIndex);
4846                         }
4847                 }
4848
4849                 if (lp_config_backend_is_registry()) {
4850                         /* config backend changed to registry in config file */
4851                         /*
4852                          * We need to use this extra global variable here to
4853                          * survive restart: init_globals uses this as a default
4854                          * for ConfigBackend. Otherwise, init_globals would
4855                          *  send us into an endless loop here.
4856                          */
4857                         config_backend = CONFIG_BACKEND_REGISTRY;
4858                         /* start over */
4859                         DEBUG(1, ("lp_load_ex: changing to config backend "
4860                                   "registry\n"));
4861                         init_globals(true);
4862                         lp_kill_all_services();
4863                         return lp_load_ex(pszFname, global_only, save_defaults,
4864                                           add_ipc, initialize_globals,
4865                                           allow_include_registry,
4866                                           load_all_shares);
4867                 }
4868         } else if (lp_config_backend_is_registry()) {
4869                 bRetval = process_registry_globals();
4870         } else {
4871                 DEBUG(0, ("Illegal config  backend given: %d\n",
4872                           lp_config_backend()));
4873                 bRetval = false;
4874         }
4875
4876         if (bRetval && lp_registry_shares()) {
4877                 if (load_all_shares) {
4878                         bRetval = process_registry_shares();
4879                 } else {
4880                         bRetval = reload_registry_shares();
4881                 }
4882         }
4883
4884         {
4885                 char *serv = lp_auto_services(talloc_tos());
4886                 lp_add_auto_services(serv);
4887                 TALLOC_FREE(serv);
4888         }
4889
4890         if (add_ipc) {
4891                 /* When 'restrict anonymous = 2' guest connections to ipc$
4892                    are denied */
4893                 lp_add_ipc("IPC$", (lp_restrict_anonymous() < 2));
4894                 if ( lp_enable_asu_support() ) {
4895                         lp_add_ipc("ADMIN$", false);
4896                 }
4897         }
4898
4899         set_allowed_client_auth();
4900
4901         if (lp_security() == SEC_ADS && strchr(lp_passwordserver(), ':')) {
4902                 DEBUG(1, ("WARNING: The optional ':port' in password server = %s is deprecated\n",
4903                           lp_passwordserver()));
4904         }
4905
4906         bLoaded = true;
4907
4908         /* Now we check bWINSsupport and set szWINSserver to 127.0.0.1 */
4909         /* if bWINSsupport is true and we are in the client            */
4910         if (lp_is_in_client() && Globals.bWINSsupport) {
4911                 lp_do_parameter(GLOBAL_SECTION_SNUM, "wins server", "127.0.0.1");
4912         }
4913
4914         init_iconv();
4915
4916         fault_configure(smb_panic_s3);
4917
4918         /*
4919          * We run this check once the whole smb.conf is parsed, to
4920          * force some settings for the standard way a AD DC is
4921          * operated.  We may changed these as our code evolves, which
4922          * is why we force these settings.
4923          */
4924         if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC) {
4925                 lp_do_parameter(-1, "passdb backend", "samba_dsdb");
4926
4927                 lp_do_parameter(-1, "rpc_server:default", "external");
4928                 lp_do_parameter(-1, "rpc_server:svcctl", "embedded");
4929                 lp_do_parameter(-1, "rpc_server:srvsvc", "embedded");
4930                 lp_do_parameter(-1, "rpc_server:eventlog", "embedded");
4931                 lp_do_parameter(-1, "rpc_server:ntsvcs", "embedded");
4932                 lp_do_parameter(-1, "rpc_server:winreg", "embedded");
4933                 lp_do_parameter(-1, "rpc_server:spoolss", "embedded");
4934                 lp_do_parameter(-1, "rpc_daemon:spoolssd", "embedded");
4935                 lp_do_parameter(-1, "rpc_server:tcpip", "no");
4936         }
4937
4938         bAllowIncludeRegistry = true;
4939
4940         return (bRetval);
4941 }
4942
4943 bool lp_load(const char *pszFname,
4944              bool global_only,
4945              bool save_defaults,
4946              bool add_ipc,
4947              bool initialize_globals)
4948 {
4949         return lp_load_ex(pszFname,
4950                           global_only,
4951                           save_defaults,
4952                           add_ipc,
4953                           initialize_globals,
4954                           true,   /* allow_include_registry */
4955                           false); /* load_all_shares*/
4956 }
4957
4958 bool lp_load_initial_only(const char *pszFname)
4959 {
4960         return lp_load_ex(pszFname,
4961                           true,   /* global only */
4962                           false,  /* save_defaults */
4963                           false,  /* add_ipc */
4964                           true,   /* initialize_globals */
4965                           false,  /* allow_include_registry */
4966                           false); /* load_all_shares*/
4967 }
4968
4969 /**
4970  * most common lp_load wrapper, loading only the globals
4971  */
4972 bool lp_load_global(const char *file_name)
4973 {
4974         return lp_load_ex(file_name,
4975                           true,   /* global_only */
4976                           false,  /* save_defaults */
4977                           false,  /* add_ipc */
4978                           true,   /* initialize_globals */
4979                           true,   /* allow_include_registry */
4980                           false); /* load_all_shares*/
4981 }
4982
4983 /**
4984  * lp_load wrapper, especially for clients
4985  */
4986 bool lp_load_client(const char *file_name)
4987 {
4988         lp_set_in_client(true);
4989
4990         return lp_load_global(file_name);
4991 }
4992
4993 /**
4994  * lp_load wrapper, loading only globals, but intended
4995  * for subsequent calls, not reinitializing the globals
4996  * to default values
4997  */
4998 bool lp_load_global_no_reinit(const char *file_name)
4999 {
5000         return lp_load_ex(file_name,
5001                           true,   /* global_only */
5002                           false,  /* save_defaults */
5003                           false,  /* add_ipc */
5004                           false,  /* initialize_globals */
5005                           true,   /* allow_include_registry */
5006                           false); /* load_all_shares*/
5007 }
5008
5009 /**
5010  * lp_load wrapper, especially for clients, no reinitialization
5011  */
5012 bool lp_load_client_no_reinit(const char *file_name)
5013 {
5014         lp_set_in_client(true);
5015
5016         return lp_load_global_no_reinit(file_name);
5017 }
5018
5019 bool lp_load_with_registry_shares(const char *pszFname,
5020                                   bool global_only,
5021                                   bool save_defaults,
5022                                   bool add_ipc,
5023                                   bool initialize_globals)
5024 {
5025         return lp_load_ex(pszFname,
5026                           global_only,
5027                           save_defaults,
5028                           add_ipc,
5029                           initialize_globals,
5030                           true,  /* allow_include_registry */
5031                           true); /* load_all_shares*/
5032 }
5033
5034 /***************************************************************************
5035  Return the max number of services.
5036 ***************************************************************************/
5037
5038 int lp_numservices(void)
5039 {
5040         return (iNumServices);
5041 }
5042
5043 /***************************************************************************
5044 Display the contents of the services array in human-readable form.
5045 ***************************************************************************/
5046
5047 void lp_dump(FILE *f, bool show_defaults, int maxtoprint)
5048 {
5049         int iService;
5050
5051         if (show_defaults)
5052                 defaults_saved = false;
5053
5054         dump_globals(f);
5055
5056         dump_a_service(&sDefault, f);
5057
5058         for (iService = 0; iService < maxtoprint; iService++) {
5059                 fprintf(f,"\n");
5060                 lp_dump_one(f, show_defaults, iService);
5061         }
5062 }
5063
5064 /***************************************************************************
5065 Display the contents of one service in human-readable form.
5066 ***************************************************************************/
5067
5068 void lp_dump_one(FILE * f, bool show_defaults, int snum)
5069 {
5070         if (VALID(snum)) {
5071                 if (ServicePtrs[snum]->szService[0] == '\0')
5072                         return;
5073                 dump_a_service(ServicePtrs[snum], f);
5074         }
5075 }
5076
5077 /***************************************************************************
5078 Return the number of the service with the given name, or -1 if it doesn't
5079 exist. Note that this is a DIFFERENT ANIMAL from the internal function
5080 getservicebyname()! This works ONLY if all services have been loaded, and
5081 does not copy the found service.
5082 ***************************************************************************/
5083
5084 int lp_servicenumber(const char *pszServiceName)
5085 {
5086         int iService;
5087         fstring serviceName;
5088
5089         if (!pszServiceName) {
5090                 return GLOBAL_SECTION_SNUM;
5091         }
5092
5093         for (iService = iNumServices - 1; iService >= 0; iService--) {
5094                 if (VALID(iService) && ServicePtrs[iService]->szService) {
5095                         /*
5096                          * The substitution here is used to support %U is
5097                          * service names
5098                          */
5099                         fstrcpy(serviceName, ServicePtrs[iService]->szService);
5100                         standard_sub_basic(get_current_username(),
5101                                            current_user_info.domain,
5102                                            serviceName,sizeof(serviceName));
5103                         if (strequal(serviceName, pszServiceName)) {
5104                                 break;
5105                         }
5106                 }
5107         }
5108
5109         if (iService >= 0 && ServicePtrs[iService]->usershare == USERSHARE_VALID) {
5110                 struct timespec last_mod;
5111
5112                 if (!usershare_exists(iService, &last_mod)) {
5113                         /* Remove the share security tdb entry for it. */
5114                         delete_share_security(lp_servicename(talloc_tos(), iService));
5115                         /* Remove it from the array. */
5116                         free_service_byindex(iService);
5117                         /* Doesn't exist anymore. */
5118                         return GLOBAL_SECTION_SNUM;
5119                 }
5120
5121                 /* Has it been modified ? If so delete and reload. */
5122                 if (timespec_compare(&ServicePtrs[iService]->usershare_last_mod,
5123                                      &last_mod) < 0) {
5124                         /* Remove it from the array. */
5125                         free_service_byindex(iService);
5126                         /* and now reload it. */
5127                         iService = load_usershare_service(pszServiceName);
5128                 }
5129         }
5130
5131         if (iService < 0) {
5132                 DEBUG(7,("lp_servicenumber: couldn't find %s\n", pszServiceName));
5133                 return GLOBAL_SECTION_SNUM;
5134         }
5135
5136         return (iService);
5137 }
5138
5139 /*******************************************************************
5140  A useful volume label function.
5141 ********************************************************************/
5142
5143 const char *volume_label(TALLOC_CTX *ctx, int snum)
5144 {
5145         char *ret;
5146         const char *label = lp_volume(ctx, snum);
5147         if (!*label) {
5148                 label = lp_servicename(ctx, snum);
5149         }
5150
5151         /* This returns a 33 byte guarenteed null terminated string. */
5152         ret = talloc_strndup(ctx, label, 32);
5153         if (!ret) {
5154                 return "";
5155         }
5156         return ret;
5157 }
5158
5159 /*******************************************************************
5160  Get the default server type we will announce as via nmbd.
5161 ********************************************************************/
5162
5163 int lp_default_server_announce(void)
5164 {
5165         int default_server_announce = 0;
5166         default_server_announce |= SV_TYPE_WORKSTATION;
5167         default_server_announce |= SV_TYPE_SERVER;
5168         default_server_announce |= SV_TYPE_SERVER_UNIX;
5169
5170         /* note that the flag should be set only if we have a
5171            printer service but nmbd doesn't actually load the
5172            services so we can't tell   --jerry */
5173
5174         default_server_announce |= SV_TYPE_PRINTQ_SERVER;
5175
5176         default_server_announce |= SV_TYPE_SERVER_NT;
5177         default_server_announce |= SV_TYPE_NT;
5178
5179         switch (lp_server_role()) {
5180                 case ROLE_DOMAIN_MEMBER:
5181                         default_server_announce |= SV_TYPE_DOMAIN_MEMBER;
5182                         break;
5183                 case ROLE_DOMAIN_PDC:
5184                         default_server_announce |= SV_TYPE_DOMAIN_CTRL;
5185                         break;
5186                 case ROLE_DOMAIN_BDC:
5187                         default_server_announce |= SV_TYPE_DOMAIN_BAKCTRL;
5188                         break;
5189                 case ROLE_STANDALONE:
5190                 default:
5191                         break;
5192         }
5193         if (lp_time_server())
5194                 default_server_announce |= SV_TYPE_TIME_SOURCE;
5195
5196         if (lp_host_msdfs())
5197                 default_server_announce |= SV_TYPE_DFS_SERVER;
5198
5199         return default_server_announce;
5200 }
5201
5202 /***********************************************************
5203  If we are PDC then prefer us as DMB
5204 ************************************************************/
5205
5206 bool lp_domain_master(void)
5207 {
5208         if (Globals.domain_master == Auto)
5209                 return (lp_server_role() == ROLE_DOMAIN_PDC);
5210
5211         return (bool)Globals.domain_master;
5212 }
5213
5214 /***********************************************************
5215  If we are PDC then prefer us as DMB
5216 ************************************************************/
5217
5218 static bool lp_domain_master_true_or_auto(void)
5219 {
5220         if (Globals.domain_master) /* auto or yes */
5221                 return true;
5222
5223         return false;
5224 }
5225
5226 /***********************************************************
5227  If we are DMB then prefer us as LMB
5228 ************************************************************/
5229
5230 bool lp_preferred_master(void)
5231 {
5232         if (Globals.iPreferredMaster == Auto)
5233                 return (lp_local_master() && lp_domain_master());
5234
5235         return (bool)Globals.iPreferredMaster;
5236 }
5237
5238 /*******************************************************************
5239  Remove a service.
5240 ********************************************************************/
5241
5242 void lp_remove_service(int snum)
5243 {
5244         ServicePtrs[snum]->valid = false;
5245         invalid_services[num_invalid_services++] = snum;
5246 }
5247
5248 /*******************************************************************
5249  Copy a service.
5250 ********************************************************************/
5251
5252 void lp_copy_service(int snum, const char *new_name)
5253 {
5254         do_section(new_name, NULL);
5255         if (snum >= 0) {
5256                 snum = lp_servicenumber(new_name);
5257                 if (snum >= 0) {
5258                         char *name = lp_servicename(talloc_tos(), snum);
5259                         lp_do_parameter(snum, "copy", name);
5260                 }
5261         }
5262 }
5263
5264 const char *lp_printername(TALLOC_CTX *ctx, int snum)
5265 {
5266         const char *ret = lp__printername(talloc_tos(), snum);
5267         if (ret == NULL || *ret == '\0') {
5268                 ret = lp_const_servicename(snum);
5269         }
5270
5271         return ret;
5272 }
5273
5274
5275 /***********************************************************
5276  Allow daemons such as winbindd to fix their logfile name.
5277 ************************************************************/
5278
5279 void lp_set_logfile(const char *name)
5280 {
5281         string_set(&Globals.logfile, name);
5282         debug_set_logfile(name);
5283 }
5284
5285 /*******************************************************************
5286  Return the max print jobs per queue.
5287 ********************************************************************/
5288
5289 int lp_maxprintjobs(int snum)
5290 {
5291         int maxjobs = LP_SNUM_OK(snum) ? ServicePtrs[snum]->iMaxPrintJobs : sDefault.iMaxPrintJobs;
5292         if (maxjobs <= 0 || maxjobs >= PRINT_MAX_JOBID)
5293                 maxjobs = PRINT_MAX_JOBID - 1;
5294
5295         return maxjobs;
5296 }
5297
5298 const char *lp_printcapname(void)
5299 {
5300         if ((Globals.szPrintcapname != NULL) &&
5301             (Globals.szPrintcapname[0] != '\0'))
5302                 return Globals.szPrintcapname;
5303
5304         if (sDefault.iPrinting == PRINT_CUPS) {
5305                 return "cups";
5306         }
5307
5308         if (sDefault.iPrinting == PRINT_BSD)
5309                 return "/etc/printcap";
5310
5311         return PRINTCAP_NAME;
5312 }
5313
5314 static uint32 spoolss_state;
5315
5316 bool lp_disable_spoolss( void )
5317 {
5318         if ( spoolss_state == SVCCTL_STATE_UNKNOWN )
5319                 spoolss_state = lp__disable_spoolss() ? SVCCTL_STOPPED : SVCCTL_RUNNING;
5320
5321         return spoolss_state == SVCCTL_STOPPED ? true : false;
5322 }
5323
5324 void lp_set_spoolss_state( uint32 state )
5325 {
5326         SMB_ASSERT( (state == SVCCTL_STOPPED) || (state == SVCCTL_RUNNING) );
5327
5328         spoolss_state = state;
5329 }
5330
5331 uint32 lp_get_spoolss_state( void )
5332 {
5333         return lp_disable_spoolss() ? SVCCTL_STOPPED : SVCCTL_RUNNING;
5334 }
5335
5336 /*******************************************************************
5337  Ensure we don't use sendfile if server smb signing is active.
5338 ********************************************************************/
5339
5340 bool lp_use_sendfile(int snum, struct smb_signing_state *signing_state)
5341 {
5342         bool sign_active = false;
5343
5344         /* Using sendfile blows the brains out of any DOS or Win9x TCP stack... JRA. */
5345         if (get_Protocol() < PROTOCOL_NT1) {
5346                 return false;
5347         }
5348         if (signing_state) {
5349                 sign_active = smb_signing_is_active(signing_state);
5350         }
5351         return (lp__use_sendfile(snum) &&
5352                         (get_remote_arch() != RA_WIN95) &&
5353                         !sign_active);
5354 }
5355
5356 /*******************************************************************
5357  Turn off sendfile if we find the underlying OS doesn't support it.
5358 ********************************************************************/
5359
5360 void set_use_sendfile(int snum, bool val)
5361 {
5362         if (LP_SNUM_OK(snum))
5363                 ServicePtrs[snum]->bUseSendfile = val;
5364         else
5365                 sDefault.bUseSendfile = val;
5366 }
5367
5368 /*******************************************************************
5369  Turn off storing DOS attributes if this share doesn't support it.
5370 ********************************************************************/
5371
5372 void set_store_dos_attributes(int snum, bool val)
5373 {
5374         if (!LP_SNUM_OK(snum))
5375                 return;
5376         ServicePtrs[(snum)]->bStoreDosAttributes = val;
5377 }
5378
5379 void lp_set_mangling_method(const char *new_method)
5380 {
5381         string_set(&Globals.szManglingMethod, new_method);
5382 }
5383
5384 /*******************************************************************
5385  Global state for POSIX pathname processing.
5386 ********************************************************************/
5387
5388 static bool posix_pathnames;
5389
5390 bool lp_posix_pathnames(void)
5391 {
5392         return posix_pathnames;
5393 }
5394
5395 /*******************************************************************
5396  Change everything needed to ensure POSIX pathname processing (currently
5397  not much).
5398 ********************************************************************/
5399
5400 void lp_set_posix_pathnames(void)
5401 {
5402         posix_pathnames = true;
5403 }
5404
5405 /*******************************************************************
5406  Global state for POSIX lock processing - CIFS unix extensions.
5407 ********************************************************************/
5408
5409 bool posix_default_lock_was_set;
5410 static enum brl_flavour posix_cifsx_locktype; /* By default 0 == WINDOWS_LOCK */
5411
5412 enum brl_flavour lp_posix_cifsu_locktype(files_struct *fsp)
5413 {
5414         if (posix_default_lock_was_set) {
5415                 return posix_cifsx_locktype;
5416         } else {
5417                 return fsp->posix_open ? POSIX_LOCK : WINDOWS_LOCK;
5418         }
5419 }
5420
5421 /*******************************************************************
5422 ********************************************************************/
5423
5424 void lp_set_posix_default_cifsx_readwrite_locktype(enum brl_flavour val)
5425 {
5426         posix_default_lock_was_set = true;
5427         posix_cifsx_locktype = val;
5428 }
5429
5430 int lp_min_receive_file_size(void)
5431 {
5432         if (Globals.iminreceivefile < 0) {
5433                 return 0;
5434         }
5435         return MIN(Globals.iminreceivefile, BUFFER_SIZE);
5436 }
5437
5438 /*******************************************************************
5439  Safe wide links checks.
5440  This helper function always verify the validity of wide links,
5441  even after a configuration file reload.
5442 ********************************************************************/
5443
5444 static bool lp_widelinks_internal(int snum)
5445 {
5446         return (bool)(LP_SNUM_OK(snum)? ServicePtrs[(snum)]->bWidelinks :
5447                         sDefault.bWidelinks);
5448 }
5449
5450 void widelinks_warning(int snum)
5451 {
5452         if (lp_allow_insecure_widelinks()) {
5453                 return;
5454         }
5455
5456         if (lp_unix_extensions() && lp_widelinks_internal(snum)) {
5457                 DEBUG(0,("Share '%s' has wide links and unix extensions enabled. "
5458                         "These parameters are incompatible. "
5459                         "Wide links will be disabled for this share.\n",
5460                          lp_servicename(talloc_tos(), snum) ));
5461         }
5462 }
5463
5464 bool lp_widelinks(int snum)
5465 {
5466         /* wide links is always incompatible with unix extensions */
5467         if (lp_unix_extensions()) {
5468                 /*
5469                  * Unless we have "allow insecure widelinks"
5470                  * turned on.
5471                  */
5472                 if (!lp_allow_insecure_widelinks()) {
5473                         return false;
5474                 }
5475         }
5476
5477         return lp_widelinks_internal(snum);
5478 }
5479
5480 bool lp_writeraw(void)
5481 {
5482         if (lp_async_smb_echo_handler()) {
5483                 return false;
5484         }
5485         return lp__writeraw();
5486 }
5487
5488 bool lp_readraw(void)
5489 {
5490         if (lp_async_smb_echo_handler()) {
5491                 return false;
5492         }
5493         return lp__readraw();
5494 }
5495
5496 int lp_server_role(void)
5497 {
5498         return lp_find_server_role(lp__server_role(),
5499                                    lp__security(),
5500                                    lp__domain_logons(),
5501                                    lp_domain_master_true_or_auto());
5502 }
5503
5504 int lp_security(void)
5505 {
5506         return lp_find_security(lp__server_role(),
5507                                 lp__security());
5508 }