source3/passdb/sampassldap.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.0.
   4    LDAP protocol helper functions for SAMBA
   5    Copyright (C) Matthew Chapman 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 #include "includes.h"
  24
  25 #ifdef WITH_LDAP
  26
  27 #include <lber.h>
  28 #include <ldap.h>
  29
  30 extern int DEBUGLEVEL;
  31
  32 /* Internal state */
  33 extern LDAP *ldap_struct;
  34 extern LDAPMessage *ldap_results;
  35 extern LDAPMessage *ldap_entry;
  36
  37
  38 /*******************************************************************
  39   NT name/RID search functions.
  40  ******************************************************************/
  41
  42 BOOL ldap_search_by_rid(uint32 rid)
  43 {
  44         fstring filter;
  45
  46         slprintf(filter, sizeof(filter)-1,
  47                  "(&(rid=%x)(objectclass=sambaAccount))", rid);
  48         return ldap_search_for(filter);
  49 }
  50
  51 BOOL ldap_search_by_ntname(const char *ntname)
  52 {
  53         fstring filter;
  54
  55         slprintf(filter, sizeof(filter)-1,
  56                  "(&(ntuid=%s)(objectclass=sambaAccount))", ntname);
  57         return ldap_search_for(filter);
  58 }
  59
  60
  61 /*******************************************************************
  62   Store NTTIMEs as time_t's.
  63  ******************************************************************/
  64
  65 static void ldap_save_time(LDAPMod ***modlist, int modop, char *attribute,
  66                         NTTIME *nttime)
  67 {
  68         fstring tstr;
  69         time_t t;
  70
  71         t = nt_time_to_unix(nttime);
  72
  73         if(t == -1)
  74                 return;
  75
  76         slprintf(tstr, sizeof(tstr)-1, "%08X", t);
  77         ldap_make_mod(modlist, modop, attribute, tstr);
  78 }
  79
  80 static void ldap_read_time(char *attribute, NTTIME *nttime)
  81 {
  82         fstring timestr;
  83         time_t t;
  84
  85         if(ldap_get_attribute(attribute, timestr))
  86         {
  87                 t = (time_t)strtol(timestr, NULL, 16);
  88                 unix_to_nt_time(nttime, t);
  89         }
  90 }
  91
  92
  93 /*******************************************************************
  94   Contruct a sam_passwd structure.
  95  ******************************************************************/
  96
  97 static struct sam_passwd *ldapsam_getsam()
  98 {
  99         static pstring full_name;
 100         static pstring acct_desc;
 101         static pstring home_dir;
 102         static pstring home_drive;
 103         static pstring logon_script;
 104         static pstring profile_path;
 105         static pstring workstations;
 106         pstring temp;
 107         struct sam_passwd *sam21;
 108         struct smb_passwd *smbpw;
 109
 110         if(!ldap_entry)
 111                 return NULL;
 112
 113         smbpw = ldap_getpw();
 114         sam21 = pwdb_smb_to_sam(smbpw);
 115
 116         if(ldap_get_attribute("gidNumber", temp))
 117                 sam21->unix_gid = atoi(temp);
 118
 119         if(ldap_get_attribute("grouprid", temp))
 120                 sam21->group_rid = strtol(temp, NULL, 16);
 121
 122         if(ldap_get_attribute("cn", full_name))
 123                 sam21->full_name = full_name;
 124
 125         if(ldap_get_attribute("description", acct_desc))
 126                 sam21->acct_desc = acct_desc;
 127
 128         if(ldap_get_attribute("smbHome", home_dir))
 129                 sam21->home_dir = home_dir;
 130
 131         if(ldap_get_attribute("homeDrive", home_drive))
 132                 sam21->dir_drive = home_drive;
 133
 134         if(ldap_get_attribute("script", logon_script))
 135                 sam21->logon_script = logon_script;
 136
 137         if(ldap_get_attribute("profile", profile_path))
 138                 sam21->profile_path = profile_path;
 139
 140         if(ldap_get_attribute("workstations", workstations))
 141                 sam21->workstations = workstations;
 142
 143         ldap_read_time("pwdCanChange", &sam21->pass_can_change_time);
 144         ldap_read_time("pwdMustChange", &sam21->pass_must_change_time);
 145         ldap_read_time("logonTime", &sam21->logon_time);
 146         ldap_read_time("logoffTime", &sam21->logoff_time);
 147         ldap_read_time("kickoffTime", &sam21->kickoff_time);
 148
 149         sam21->unknown_3 = 0xffffff; /* don't know */
 150         sam21->logon_divs = 168; /* hours per week */
 151         sam21->hours_len = 21; /* 21 times 8 bits = 168 */
 152         memset(sam21->hours, 0xff, sam21->hours_len); /* all hours */
 153         sam21->unknown_5 = 0x00020000; /* don't know */
 154         sam21->unknown_6 = 0x000004ec; /* don't know */
 155         sam21->unknown_str = NULL;
 156         sam21->munged_dial = NULL;
 157
 158         ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
 159         return sam21;
 160 }
 161
 162
 163 /*******************************************************************
 164   Contruct a sam_disp_info structure.
 165   ******************************************************************/
 166
 167 static struct sam_disp_info *ldapsam_getdispinfo()
 168 {
 169         static struct sam_disp_info dispinfo;
 170         static pstring nt_name;
 171         static pstring full_name;
 172         pstring temp;
 173
 174         if(!ldap_entry)
 175                 return NULL;
 176
 177         if(!ldap_get_attribute("ntuid", nt_name) &&
 178                         !ldap_get_attribute("uid", nt_name)) {
 179                 DEBUG(0,("Missing uid\n"));
 180                 return NULL; }
 181         dispinfo.nt_name = nt_name;
 182
 183         DEBUG(2,("Retrieving account [%s]\n",nt_name));
 184
 185         if(ldap_get_attribute("rid", temp))
 186                 dispinfo.user_rid = strtol(temp, NULL, 16);
 187         else {
 188                 DEBUG(0,("Missing rid\n"));
 189                 return NULL; }
 190
 191         if(ldap_get_attribute("cn", full_name))
 192                 dispinfo.full_name = full_name;
 193         else
 194                 dispinfo.full_name = NULL;
 195
 196         ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
 197         return &dispinfo;
 198 }
 199
 200
 201 /************************************************************************
 202   Queues the necessary modifications to save a sam_passwd structure
 203  ************************************************************************/
 204
 205 static void ldapsam_sammods(struct sam_passwd *newpwd, LDAPMod ***mods,
 206                            int operation)
 207 {
 208         struct smb_passwd *smbpw;
 209         pstring temp;
 210
 211         smbpw = pwdb_sam_to_smb(newpwd);
 212         ldap_smbpwmods(smbpw, mods, operation);
 213
 214         slprintf(temp, sizeof(temp)-1, "%d", newpwd->unix_gid);
 215         ldap_make_mod(mods, operation, "gidNumber", temp);
 216
 217         slprintf(temp, sizeof(temp)-1, "%x", newpwd->group_rid);
 218         ldap_make_mod(mods, operation, "grouprid", temp);
 219
 220         ldap_make_mod(mods, operation, "cn", newpwd->full_name);
 221         ldap_make_mod(mods, operation, "description", newpwd->acct_desc);
 222         ldap_make_mod(mods, operation, "smbHome", newpwd->home_dir);
 223         ldap_make_mod(mods, operation, "homeDrive", newpwd->dir_drive);
 224         ldap_make_mod(mods, operation, "script", newpwd->logon_script);
 225         ldap_make_mod(mods, operation, "profile", newpwd->profile_path);
 226         ldap_make_mod(mods, operation, "workstations", newpwd->workstations);
 227
 228         ldap_save_time(mods, operation, "pwdCanChange",
 229                         &newpwd->pass_can_change_time);
 230         ldap_save_time(mods, operation, "pwdMustChange",
 231                         &newpwd->pass_must_change_time);
 232         ldap_save_time(mods, operation, "logonTime",
 233                         &newpwd->logon_time);
 234         ldap_save_time(mods, operation, "logoffTime",
 235                         &newpwd->logoff_time);
 236         ldap_save_time(mods, operation, "kickoffTime",
 237                         &newpwd->kickoff_time);
 238 }
 239
 240
 241 /***************************************************************
 242   Begin/end account enumeration.
 243  ****************************************************************/
 244
 245 static void *ldapsam_enumfirst(BOOL update)
 246 {
 247         if (!ldap_connect())
 248                 return NULL;
 249
 250         ldap_search_for("objectclass=sambaAccount");
 251
 252         return ldap_struct;
 253 }
 254
 255 static void ldapsam_enumclose(void *vp)
 256 {
 257         ldap_disconnect();
 258 }
 259
 260
 261 /*************************************************************************
 262   Save/restore the current position in a query
 263  *************************************************************************/
 264
 265 static SMB_BIG_UINT ldapsam_getdbpos(void *vp)
 266 {
 267         return (SMB_BIG_UINT)((ulong)ldap_entry);
 268 }
 269
 270 static BOOL ldapsam_setdbpos(void *vp, SMB_BIG_UINT tok)
 271 {
 272         ldap_entry = (LDAPMessage *)((ulong)tok);
 273         return (True);
 274 }
 275
 276
 277 /*************************************************************************
 278   Return sam_passwd information.
 279  *************************************************************************/
 280
 281 static struct sam_passwd *ldapsam_getsambynam(const char *name)
 282 {
 283         struct sam_passwd *ret;
 284
 285         if(!ldap_connect())
 286                 return NULL;
 287
 288         ldap_search_by_ntname(name);
 289         ret = ldapsam_getsam();
 290
 291         ldap_disconnect();
 292         return ret;
 293 }
 294
 295 static struct sam_passwd *ldapsam_getsambyuid(uid_t userid)
 296 {
 297         struct sam_passwd *ret;
 298
 299         if(!ldap_connect())
 300            return NULL;
 301
 302         ldap_search_by_uid(userid);
 303         ret = ldapsam_getsam();
 304
 305         ldap_disconnect();
 306         return ret;
 307 }
 308
 309 static struct sam_passwd *ldapsam_getsambyrid(uint32 user_rid)
 310 {
 311         struct sam_passwd *ret;
 312
 313         if(!ldap_connect())
 314            return NULL;
 315
 316         ldap_search_by_rid(user_rid);
 317         ret = ldapsam_getsam();
 318
 319         ldap_disconnect();
 320         return ret;
 321 }
 322
 323 static struct sam_passwd *ldapsam_getcurrentsam(void *vp)
 324 {
 325         return ldapsam_getsam();
 326 }
 327
 328
 329 /************************************************************************
 330   Modify user information given a sam_passwd struct.
 331  *************************************************************************/
 332
 333 static BOOL ldapsam_addsam(struct sam_passwd *newpwd)
 334 {
 335         LDAPMod **mods;
 336
 337         if (!newpwd || !ldap_allocaterid(&newpwd->user_rid))
 338                 return (False);
 339
 340         ldapsam_sammods(newpwd, &mods, LDAP_MOD_ADD);
 341         return ldap_makemods("uid", newpwd->unix_name, mods, True);
 342 }
 343
 344 static BOOL ldapsam_modsam(struct sam_passwd *pwd, BOOL override)
 345 {
 346         LDAPMod **mods;
 347
 348         if (!pwd)
 349                 return (False);
 350
 351         ldapsam_sammods(pwd, &mods, LDAP_MOD_REPLACE);
 352         return ldap_makemods("uid", pwd->unix_name, mods, False);
 353 }
 354
 355
 356 /*************************************************************************
 357   Return sam_disp_info information.
 358  *************************************************************************/
 359
 360 static struct sam_disp_info *ldapsam_getdispbynam(const char *name)
 361 {
 362         struct sam_disp_info *ret;
 363
 364         if(!ldap_connect())
 365            return NULL;
 366
 367         ldap_search_by_ntname(name);
 368         ret = ldapsam_getdispinfo();
 369
 370         ldap_disconnect();
 371         return ret;
 372 }
 373
 374 static struct sam_disp_info *ldapsam_getdispbyrid(uint32 user_rid)
 375 {
 376         struct sam_disp_info *ret;
 377
 378         if(!ldap_connect())
 379            return NULL;
 380
 381         ldap_search_by_rid(user_rid);
 382         ret = ldapsam_getdispinfo();
 383
 384         ldap_disconnect();
 385         return ret;
 386 }
 387
 388 static struct sam_disp_info *ldapsam_getcurrentdisp(void *vp)
 389 {
 390         return ldapsam_getdispinfo();
 391 }
 392
 393
 394
 395 static struct sam_passdb_ops ldapsam_ops =
 396 {
 397         ldapsam_enumfirst,
 398         ldapsam_enumclose,
 399         ldapsam_getdbpos,
 400         ldapsam_setdbpos,
 401
 402         ldapsam_getsambynam,
 403         ldapsam_getsambyuid,
 404         ldapsam_getsambyrid,
 405         ldapsam_getcurrentsam,
 406         ldapsam_addsam,
 407         ldapsam_modsam,
 408
 409         ldapsam_getdispbynam,
 410         ldapsam_getdispbyrid,
 411         ldapsam_getcurrentdisp
 412 };
 413
 414 struct sam_passdb_ops *ldap_initialise_sam_password_db(void)
 415 {
 416         return &ldapsam_ops;
 417 }
 418
 419 #else
 420  void sampassldap_dummy_function(void);
 421  void sampassldap_dummy_function(void) { } /* stop some compilers complaining */
 422 #endif