source3/passdb/pdb_xml.c

   1
   2 /*
   3  * XML password backend for samba
   4  * Copyright (C) Jelmer Vernooij 2002
   5  * Some parts based on the libxml gjobread example by Daniel Veillard
   6  *
   7  * This program is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 675
  19  * Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 /* FIXME:
  23  * - Support stdin input by using '-'
  24  * - Be faster. Don't rewrite the whole file when adding a user, but store it in the memory and save it when exiting. Requires changes to samba source.
  25  * - Gives the ability to read/write to standard input/output
  26  * - Do locking!
  27  * - Better names!
  28  */
  29
  30
  31 #define XML_URL "http://samba.org/samba/DTD/passdb"
  32
  33 #include "includes.h"
  34
  35 #include <libxml/xmlmemory.h>
  36 #include <libxml/parser.h>
  37
  38 static int xmlsam_debug_level = DBGC_ALL;
  39
  40 #undef DBGC_CLASS
  41 #define DBGC_CLASS xmlsam_debug_level
  42
  43
  44 /* Helper utilities for charset conversion */
  45 static xmlNodePtr smbXmlNewChild(xmlNodePtr prnt, xmlNsPtr ns, const xmlChar *name, const char *content)
  46 {
  47         char *string_utf8;
  48         xmlNodePtr ret;
  49
  50         if(!content) return xmlNewChild(prnt, ns, name, NULL);
  51
  52
  53         if(push_utf8_allocate(&string_utf8,content) == (size_t)-1)
  54        return NULL;
  55
  56         ret = xmlNewTextChild(prnt, ns, name, string_utf8);
  57
  58         SAFE_FREE(string_utf8);
  59
  60         return ret;
  61 }
  62
  63
  64 static char * iota(int a) {
  65         static char tmp[10];
  66
  67         snprintf(tmp, 9, "%d", a);
  68         return tmp;
  69 }
  70
  71 static BOOL parsePass(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, SAM_ACCOUNT * u)
  72 {
  73         pstring temp;
  74
  75         cur = cur->xmlChildrenNode;
  76         while (cur != NULL) {
  77                 if (strcmp(cur->name, "crypt"))
  78                         DEBUG(0, ("Unknown element %s\n", cur->name));
  79                 else {
  80                         if (!strcmp(xmlGetProp(cur, "type"), "nt")
  81                                 &&
  82                                 pdb_gethexpwd(xmlNodeListGetString
  83                                                           (doc, cur->xmlChildrenNode, 1), temp))
  84                                 pdb_set_nt_passwd(u, temp, PDB_SET);
  85                         else if (!strcmp(xmlGetProp(cur, "type"), "lanman")
  86                                          &&
  87                                          pdb_gethexpwd(xmlNodeListGetString
  88                                                                    (doc, cur->xmlChildrenNode, 1), temp))
  89                                 pdb_set_lanman_passwd(u, temp, PDB_SET);
  90                         else
  91                                 DEBUG(0,
  92                                           ("Unknown crypt type: %s\n",
  93                                            xmlGetProp(cur, "type")));
  94                 }
  95                 cur = cur->next;
  96         }
  97         return True;
  98 }
  99
 100 static BOOL parseUser(xmlDocPtr doc, xmlNsPtr ns, xmlNodePtr cur, SAM_ACCOUNT * u)
 101 {
 102         char *tmp;
 103         DOM_SID sid;
 104
 105         tmp = xmlGetProp(cur, "sid");
 106         if (tmp){
 107                 string_to_sid(&sid, tmp);
 108                 pdb_set_user_sid(u, &sid, PDB_SET);
 109         }
 110         pdb_set_username(u, xmlGetProp(cur, "name"), PDB_SET);
 111         /* We don't care what the top level element name is */
 112         cur = cur->xmlChildrenNode;
 113         while (cur != NULL) {
 114                 if ((!strcmp(cur->name, "group")) && (cur->ns == ns)) {
 115                         tmp = xmlGetProp(cur, "sid");
 116                         if (tmp){
 117                                 string_to_sid(&sid, tmp);
 118                                 pdb_set_group_sid(u, &sid, PDB_SET);
 119                         }
 120                 }
 121
 122                 else if ((!strcmp(cur->name, "domain")) && (cur->ns == ns))
 123                         pdb_set_domain(u,
 124                                                    xmlNodeListGetString(doc, cur->xmlChildrenNode,
 125                                                                                                 1), PDB_SET);
 126
 127                 else if (!strcmp(cur->name, "fullname") && cur->ns == ns)
 128                         pdb_set_fullname(u,
 129                                                          xmlNodeListGetString(doc,
 130                                                                                                   cur->xmlChildrenNode,
 131                                                                                                   1), PDB_SET);
 132
 133                 else if (!strcmp(cur->name, "nt_username") && cur->ns == ns)
 134                         pdb_set_nt_username(u,
 135                                                                 xmlNodeListGetString(doc,
 136                                                                                                          cur->xmlChildrenNode,
 137                                                                                                          1), PDB_SET);
 138
 139                 else if (!strcmp(cur->name, "logon_script") && cur->ns == ns)
 140                         pdb_set_logon_script(u,
 141                                                                  xmlNodeListGetString(doc,
 142                                                                                                           cur->xmlChildrenNode,
 143                                                                                                           1), PDB_SET);
 144
 145                 else if (!strcmp(cur->name, "profile_path") && cur->ns == ns)
 146                         pdb_set_profile_path(u,
 147                                                                  xmlNodeListGetString(doc,
 148                                                                                                           cur->xmlChildrenNode,
 149                                                                                                           1), PDB_SET);
 150
 151                 else if (!strcmp(cur->name, "logon_time") && cur->ns == ns)
 152                         pdb_set_logon_time(u,
 153                                                            atol(xmlNodeListGetString
 154                                                                         (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 155
 156                 else if (!strcmp(cur->name, "logoff_time") && cur->ns == ns)
 157                         pdb_set_logoff_time(u,
 158                                                                 atol(xmlNodeListGetString
 159                                                                          (doc, cur->xmlChildrenNode, 1)),
 160                                                                 PDB_SET);
 161
 162                 else if (!strcmp(cur->name, "kickoff_time") && cur->ns == ns)
 163                         pdb_set_kickoff_time(u,
 164                                                                  atol(xmlNodeListGetString
 165                                                                           (doc, cur->xmlChildrenNode, 1)),
 166                                                                  PDB_SET);
 167
 168                 else if (!strcmp(cur->name, "logon_divs") && cur->ns == ns)
 169                         pdb_set_logon_divs(u,
 170                                                            atol(xmlNodeListGetString
 171                                                                         (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 172
 173                 else if (!strcmp(cur->name, "hours_len") && cur->ns == ns)
 174                         pdb_set_hours_len(u,
 175                                                           atol(xmlNodeListGetString
 176                                                                    (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 177
 178                 else if (!strcmp(cur->name, "bad_password_count") && cur->ns == ns)
 179                         pdb_set_bad_password_count(u,
 180                                                           atol(xmlNodeListGetString
 181                                                                    (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 182
 183                 else if (!strcmp(cur->name, "logon_count") && cur->ns == ns)
 184                         pdb_set_logon_count(u,
 185                                                           atol(xmlNodeListGetString
 186                                                                    (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 187
 188                 else if (!strcmp(cur->name, "unknown_6") && cur->ns == ns)
 189                         pdb_set_unknown_6(u,
 190                                                           atol(xmlNodeListGetString
 191                                                                    (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 192
 193                 else if (!strcmp(cur->name, "homedir") && cur->ns == ns)
 194                         pdb_set_homedir(u,
 195                                                         xmlNodeListGetString(doc, cur->xmlChildrenNode,
 196                                                                                                  1), PDB_SET);
 197
 198                 else if (!strcmp(cur->name, "unknown_str") && cur->ns == ns)
 199                         pdb_set_unknown_str(u,
 200                                                                 xmlNodeListGetString(doc,
 201                                                                                                          cur->xmlChildrenNode,
 202                                                                                                          1), PDB_SET);
 203
 204                 else if (!strcmp(cur->name, "dir_drive") && cur->ns == ns)
 205                         pdb_set_dir_drive(u,
 206                                                           xmlNodeListGetString(doc,
 207                                                                                                    cur->xmlChildrenNode,
 208                                                                                                    1), PDB_SET);
 209
 210                 else if (!strcmp(cur->name, "munged_dial") && cur->ns == ns)
 211                         pdb_set_munged_dial(u,
 212                                                                 xmlNodeListGetString(doc,
 213                                                                                                          cur->xmlChildrenNode,
 214                                                                                                          1), PDB_SET);
 215
 216                 else if (!strcmp(cur->name, "acct_desc") && cur->ns == ns)
 217                         pdb_set_acct_desc(u,
 218                                                           xmlNodeListGetString(doc,
 219                                                                                                    cur->xmlChildrenNode,
 220                                                                                                    1), PDB_SET);
 221
 222                 else if (!strcmp(cur->name, "acct_ctrl") && cur->ns == ns)
 223                         pdb_set_acct_ctrl(u,
 224                                                           atol(xmlNodeListGetString
 225                                                                    (doc, cur->xmlChildrenNode, 1)), PDB_SET);
 226
 227                 else if (!strcmp(cur->name, "workstations") && cur->ns == ns)
 228                         pdb_set_workstations(u,
 229                                                                  xmlNodeListGetString(doc,
 230                                                                                                           cur->xmlChildrenNode,
 231                                                                                                           1), PDB_SET);
 232
 233                 else if ((!strcmp(cur->name, "password")) && (cur->ns == ns)) {
 234                         tmp = xmlGetProp(cur, "last_set");
 235                         if (tmp)
 236                                 pdb_set_pass_last_set_time(u, atol(tmp), PDB_SET);
 237                         tmp = xmlGetProp(cur, "must_change");
 238                         if (tmp)
 239                                 pdb_set_pass_must_change_time(u, atol(tmp), PDB_SET);
 240                         tmp = xmlGetProp(cur, "can_change");
 241                         if (tmp)
 242                                 pdb_set_pass_can_change_time(u, atol(tmp), PDB_SET);
 243                         parsePass(doc, ns, cur, u);
 244                 }
 245
 246                 else
 247                         DEBUG(0, ("Unknown element %s\n", cur->name));
 248                 cur = cur->next;
 249         }
 250
 251         return True;
 252 }
 253
 254 typedef struct pdb_xml {
 255         char *location;
 256         char written;
 257         xmlDocPtr doc;
 258         xmlNodePtr users;
 259         xmlNodePtr pwent;
 260         xmlNsPtr ns;
 261 } pdb_xml;
 262
 263 static xmlNodePtr parseSambaXMLFile(struct pdb_xml *data)
 264 {
 265         xmlNodePtr cur;
 266
 267         data->doc = xmlParseFile(data->location);
 268         if (data->doc == NULL)
 269                 return NULL;
 270
 271         cur = xmlDocGetRootElement(data->doc);
 272         if (!cur) {
 273                 DEBUG(0, ("empty document\n"));
 274                 xmlFreeDoc(data->doc);
 275                 return NULL;
 276         }
 277         data->ns = xmlSearchNsByHref(data->doc, cur, XML_URL);
 278         if (!data->ns) {
 279                 DEBUG(0,
 280                           ("document of the wrong type, samba user namespace not found\n"));
 281                 xmlFreeDoc(data->doc);
 282                 return NULL;
 283         }
 284         if (strcmp(cur->name, "samba")) {
 285                 DEBUG(0, ("document of the wrong type, root node != samba"));
 286                 xmlFreeDoc(data->doc);
 287                 return NULL;
 288         }
 289
 290         cur = cur->xmlChildrenNode;
 291         while (cur && xmlIsBlankNode(cur)) {
 292                 cur = cur->next;
 293         }
 294         if (!cur)
 295                 return NULL;
 296         if ((strcmp(cur->name, "users")) || (cur->ns != data->ns)) {
 297                 DEBUG(0, ("document of the wrong type, was '%s', users expected",
 298                                   cur->name));
 299                 DEBUG(0, ("xmlDocDump follows\n"));
 300                 xmlDocDump(stderr, data->doc);
 301                 DEBUG(0, ("xmlDocDump finished\n"));
 302                 xmlFreeDoc(data->doc);
 303                 return NULL;
 304         }
 305         data->users = cur;
 306         cur = cur->xmlChildrenNode;
 307         return cur;
 308 }
 309
 310 static NTSTATUS xmlsam_setsampwent(struct pdb_methods *methods, BOOL update, uint16 acb_mask)
 311 {
 312         pdb_xml *data;
 313
 314         if (!methods) {
 315                 DEBUG(0, ("Invalid methods\n"));
 316                 return NT_STATUS_INVALID_PARAMETER;
 317         }
 318         data = (pdb_xml *) methods->private_data;
 319         if (!data) {
 320                 DEBUG(0, ("Invalid pdb_xml_data\n"));
 321                 return NT_STATUS_INVALID_PARAMETER;
 322         }
 323         data->pwent = parseSambaXMLFile(data);
 324         if (!data->pwent)
 325                 return NT_STATUS_UNSUCCESSFUL;
 326
 327         return NT_STATUS_OK;
 328 }
 329
 330 /***************************************************************
 331   End enumeration of the passwd list.
 332  ****************************************************************/
 333
 334 static void xmlsam_endsampwent(struct pdb_methods *methods)
 335 {
 336         pdb_xml *data;
 337
 338         if (!methods) {
 339                 DEBUG(0, ("Invalid methods\n"));
 340                 return;
 341         }
 342
 343         data = (pdb_xml *) methods->private_data;
 344
 345         if (!data) {
 346                 DEBUG(0, ("Invalid pdb_xml_data\n"));
 347                 return;
 348         }
 349
 350         xmlFreeDoc(data->doc);
 351         data->doc = NULL;
 352         data->pwent = NULL;
 353 }
 354
 355 /*****************************************************************
 356   Get one SAM_ACCOUNT from the list (next in line)
 357  *****************************************************************/
 358
 359 static NTSTATUS xmlsam_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT * user)
 360 {
 361         pdb_xml *data;
 362
 363         if (!methods) {
 364                 DEBUG(0, ("Invalid methods\n"));
 365                 return NT_STATUS_INVALID_PARAMETER;
 366         }
 367         data = (pdb_xml *) methods->private_data;
 368
 369         if (!data) {
 370                 DEBUG(0, ("Invalid pdb_xml_data\n"));
 371                 return NT_STATUS_INVALID_PARAMETER;
 372         }
 373
 374         while (data->pwent) {
 375                 if ((!strcmp(data->pwent->name, "user")) &&
 376                         (data->pwent->ns == data->ns)) {
 377
 378                         parseUser(data->doc, data->ns, data->pwent, user);
 379                         data->pwent = data->pwent->next;
 380                         return NT_STATUS_OK;
 381                 }
 382                 data->pwent = data->pwent->next;
 383         }
 384         return NT_STATUS_UNSUCCESSFUL;
 385 }
 386
 387 /***************************************************************************
 388   Adds an existing SAM_ACCOUNT
 389  ****************************************************************************/
 390
 391 static NTSTATUS xmlsam_add_sam_account(struct pdb_methods *methods, SAM_ACCOUNT * u)
 392 {
 393         pstring temp;
 394         fstring sid_str;
 395         xmlNodePtr cur, user, pass, root;
 396         pdb_xml *data;
 397
 398         DEBUG(10, ("xmlsam_add_sam_account called!\n"));
 399
 400         if (!methods) {
 401                 DEBUG(0, ("Invalid methods\n"));
 402                 return NT_STATUS_INVALID_PARAMETER;
 403         }
 404
 405         data = (pdb_xml *) methods->private_data;
 406         if (!data) {
 407                 DEBUG(0, ("Invalid pdb_xml_data\n"));
 408                 return NT_STATUS_INVALID_PARAMETER;
 409         }
 410
 411         /* Create a new document if we can't open the current one */
 412         if (!parseSambaXMLFile(data)) {
 413                 DEBUG(0, ("Can't load current XML file, creating a new one\n"));
 414                 data->doc = xmlNewDoc(XML_DEFAULT_VERSION);
 415                 root = xmlNewDocNode(data->doc, NULL, "samba", NULL);
 416                 cur = xmlDocSetRootElement(data->doc, root);
 417                 data->ns = xmlNewNs(root, XML_URL, "samba");
 418                 data->users = smbXmlNewChild(root, data->ns, "users", NULL);
 419         }
 420
 421         user = smbXmlNewChild(data->users, data->ns, "user", NULL);
 422         xmlNewProp(user, "sid",
 423                            sid_to_string(sid_str, pdb_get_user_sid(u)));
 424
 425         if (pdb_get_username(u) && strcmp(pdb_get_username(u), ""))
 426                 xmlNewProp(user, "name", pdb_get_username(u));
 427
 428         cur = smbXmlNewChild(user, data->ns, "group", NULL);
 429
 430         xmlNewProp(cur, "sid",
 431                            sid_to_string(sid_str, pdb_get_group_sid(u)));
 432
 433         if (pdb_get_init_flags(u, PDB_LOGONTIME) != PDB_DEFAULT)
 434                 smbXmlNewChild(user, data->ns, "logon_time",
 435                                         iota(pdb_get_logon_time(u)));
 436
 437         if (pdb_get_init_flags(u, PDB_LOGOFFTIME) != PDB_DEFAULT)
 438                 smbXmlNewChild(user, data->ns, "logoff_time",
 439                                         iota(pdb_get_logoff_time(u)));
 440
 441         if (pdb_get_init_flags(u, PDB_KICKOFFTIME) != PDB_DEFAULT)
 442                 smbXmlNewChild(user, data->ns, "kickoff_time",
 443                                         iota(pdb_get_kickoff_time(u)));
 444
 445         if (pdb_get_domain(u) && strcmp(pdb_get_domain(u), ""))
 446                 smbXmlNewChild(user, data->ns, "domain", pdb_get_domain(u));
 447
 448         if (pdb_get_nt_username(u) && strcmp(pdb_get_nt_username(u), ""))
 449                 smbXmlNewChild(user, data->ns, "nt_username", pdb_get_nt_username(u));
 450
 451         if (pdb_get_fullname(u) && strcmp(pdb_get_fullname(u), ""))
 452                 smbXmlNewChild(user, data->ns, "fullname", pdb_get_fullname(u));
 453
 454         if (pdb_get_homedir(u) && strcmp(pdb_get_homedir(u), ""))
 455                 smbXmlNewChild(user, data->ns, "homedir", pdb_get_homedir(u));
 456
 457         if (pdb_get_dir_drive(u) && strcmp(pdb_get_dir_drive(u), ""))
 458                 smbXmlNewChild(user, data->ns, "dir_drive", pdb_get_dir_drive(u));
 459
 460         if (pdb_get_logon_script(u) && strcmp(pdb_get_logon_script(u), ""))
 461                 smbXmlNewChild(user, data->ns, "logon_script",
 462                                         pdb_get_logon_script(u));
 463
 464         if (pdb_get_profile_path(u) && strcmp(pdb_get_profile_path(u), ""))
 465                 smbXmlNewChild(user, data->ns, "profile_path",
 466                                         pdb_get_profile_path(u));
 467
 468         if (pdb_get_acct_desc(u) && strcmp(pdb_get_acct_desc(u), ""))
 469                 smbXmlNewChild(user, data->ns, "acct_desc", pdb_get_acct_desc(u));
 470
 471         if (pdb_get_workstations(u) && strcmp(pdb_get_workstations(u), ""))
 472                 smbXmlNewChild(user, data->ns, "workstations",
 473                                         pdb_get_workstations(u));
 474
 475         if (pdb_get_unknown_str(u) && strcmp(pdb_get_unknown_str(u), ""))
 476                 smbXmlNewChild(user, data->ns, "unknown_str", pdb_get_unknown_str(u));
 477
 478         if (pdb_get_munged_dial(u) && strcmp(pdb_get_munged_dial(u), ""))
 479                 smbXmlNewChild(user, data->ns, "munged_dial", pdb_get_munged_dial(u));
 480
 481
 482         /* Password stuff */
 483         pass = smbXmlNewChild(user, data->ns, "password", NULL);
 484         if (pdb_get_pass_last_set_time(u))
 485                 xmlNewProp(pass, "last_set", iota(pdb_get_pass_last_set_time(u)));
 486         if (pdb_get_init_flags(u, PDB_CANCHANGETIME) != PDB_DEFAULT)
 487                 xmlNewProp(pass, "can_change",
 488                                    iota(pdb_get_pass_can_change_time(u)));
 489
 490         if (pdb_get_init_flags(u, PDB_MUSTCHANGETIME) != PDB_DEFAULT)
 491                 xmlNewProp(pass, "must_change",
 492                                    iota(pdb_get_pass_must_change_time(u)));
 493
 494
 495         if (pdb_get_lanman_passwd(u)) {
 496                 pdb_sethexpwd(temp, pdb_get_lanman_passwd(u),
 497                                           pdb_get_acct_ctrl(u));
 498                 cur = smbXmlNewChild(pass, data->ns, "crypt", temp);
 499                 xmlNewProp(cur, "type", "lanman");
 500         }
 501
 502         if (pdb_get_nt_passwd(u)) {
 503                 pdb_sethexpwd(temp, pdb_get_nt_passwd(u), pdb_get_acct_ctrl(u));
 504                 cur = smbXmlNewChild(pass, data->ns, "crypt", temp);
 505                 xmlNewProp(cur, "type", "nt");
 506         }
 507
 508         smbXmlNewChild(user, data->ns, "acct_ctrl", iota(pdb_get_acct_ctrl(u)));
 509
 510         if (pdb_get_logon_divs(u))
 511                 smbXmlNewChild(user, data->ns, "logon_divs",
 512                                         iota(pdb_get_logon_divs(u)));
 513
 514         if (pdb_get_hours_len(u))
 515                 smbXmlNewChild(user, data->ns, "hours_len",
 516                                         iota(pdb_get_hours_len(u)));
 517
 518         smbXmlNewChild(user, data->ns, "bad_password_count", iota(pdb_get_bad_password_count(u)));
 519         smbXmlNewChild(user, data->ns, "logon_count", iota(pdb_get_logon_count(u)));
 520         smbXmlNewChild(user, data->ns, "unknown_6", iota(pdb_get_unknown_6(u)));
 521         xmlSaveFile(data->location, data->doc);
 522
 523         return NT_STATUS_OK;
 524 }
 525
 526 static NTSTATUS xmlsam_init(PDB_CONTEXT * pdb_context, PDB_METHODS ** pdb_method,
 527                  const char *location)
 528 {
 529         NTSTATUS nt_status;
 530         pdb_xml *data;
 531
 532         xmlsam_debug_level = debug_add_class("xmlsam");
 533         if (xmlsam_debug_level == -1) {
 534                 xmlsam_debug_level = DBGC_ALL;
 535                 DEBUG(0, ("xmlsam: Couldn't register custom debugging class!\n"));
 536         }
 537
 538         if (!pdb_context) {
 539                 DEBUG(0, ("invalid pdb_methods specified\n"));
 540                 return NT_STATUS_UNSUCCESSFUL;
 541         }
 542
 543         if (!NT_STATUS_IS_OK
 544                 (nt_status = make_pdb_methods(pdb_context->mem_ctx, pdb_method))) {
 545                 return nt_status;
 546         }
 547
 548         (*pdb_method)->name = "xmlsam";
 549
 550         (*pdb_method)->setsampwent = xmlsam_setsampwent;
 551         (*pdb_method)->endsampwent = xmlsam_endsampwent;
 552         (*pdb_method)->getsampwent = xmlsam_getsampwent;
 553         (*pdb_method)->add_sam_account = xmlsam_add_sam_account;
 554         (*pdb_method)->getsampwnam = NULL;
 555         (*pdb_method)->getsampwsid = NULL;
 556         (*pdb_method)->update_sam_account = NULL;
 557         (*pdb_method)->delete_sam_account = NULL;
 558         (*pdb_method)->getgrsid = NULL;
 559         (*pdb_method)->getgrgid = NULL;
 560         (*pdb_method)->getgrnam = NULL;
 561         (*pdb_method)->add_group_mapping_entry = NULL;
 562         (*pdb_method)->update_group_mapping_entry = NULL;
 563         (*pdb_method)->delete_group_mapping_entry = NULL;
 564         (*pdb_method)->enum_group_mapping = NULL;
 565
 566         data = _talloc(pdb_context->mem_ctx, sizeof(pdb_xml));
 567         data->location = talloc_strdup(pdb_context->mem_ctx, (location ? location : "passdb.xml"));
 568         data->pwent = NULL;
 569         data->written = 0;
 570         (*pdb_method)->private_data = data;
 571
 572         LIBXML_TEST_VERSION xmlKeepBlanksDefault(0);
 573
 574         return NT_STATUS_OK;
 575 }
 576
 577 NTSTATUS pdb_xml_init(void)
 578 {
 579         return smb_register_passdb(PASSDB_INTERFACE_VERSION, "xml", xmlsam_init);
 580 }