source/passdb/passgrpldap.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 2.0.
   4    LDAP passgrp database 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   Enumerate RIDs of groups which user is a member of, of type
  40   given by attribute.
  41  ****************************************************************/
  42
  43 static void ldappassgrp_member(char *attribute, uint32 **rids, int *numrids)
  44 {
  45         char **values;
  46         uint32 *ridlist;
  47         int i;
  48
  49         if((values = ldap_get_values(ldap_struct, ldap_entry, attribute))) {
  50                 *numrids = i = ldap_count_values(values);
  51                 *rids = ridlist = malloc(i * sizeof(uint32));
  52                 do {
  53                         ridlist[--i] = atoi(values[i]);
  54                 } while(i > 0);
  55                 ldap_value_free(values);
  56         } else {
  57                 *numrids = 0;
  58                 *rids = NULL;
  59         }
  60 }
  61
  62
  63 /***************************************************************
  64   Begin/end smbgrp enumeration.
  65  ****************************************************************/
  66
  67 static void *ldappassgrp_enumfirst(BOOL update)
  68 {
  69         if (!ldap_connect())
  70                 return NULL;
  71
  72         ldap_search_for("&(objectclass=sambaAccount)(|(group=*)(alias=*))");
  73
  74         return ldap_struct;
  75 }
  76
  77 static void ldappassgrp_enumclose(void *vp)
  78 {
  79         ldap_disconnect();
  80 }
  81
  82
  83 /*************************************************************************
  84   Save/restore the current position in a query
  85  *************************************************************************/
  86
  87 static SMB_BIG_UINT ldappassgrp_getdbpos(void *vp)
  88 {
  89         return (SMB_BIG_UINT)((ulong)ldap_entry);
  90 }
  91
  92 static BOOL ldappassgrp_setdbpos(void *vp, SMB_BIG_UINT tok)
  93 {
  94         ldap_entry = (LDAPMessage *)((ulong)tok);
  95         return (True);
  96 }
  97
  98
  99 /*************************************************************************
 100   Return limited smb_passwd information, and group membership.
 101  *************************************************************************/
 102
 103 static struct smb_passwd *ldappassgrp_getpwbynam(const char *name,
 104                uint32 **grp_rids, int *num_grps,
 105                uint32 **als_rids, int *num_alss)
 106 {
 107         struct smb_passwd *ret;
 108
 109         if(!ldap_connect())
 110                 return NULL;
 111
 112         ldap_search_by_ntname(name);
 113         ldappassgrp_member("group", grp_rids, num_grps);
 114         ldappassgrp_member("alias", als_rids, num_alss);
 115         ret = ldap_getpw();
 116
 117         ldap_disconnect();
 118         return ret;
 119 }
 120
 121 static struct smb_passwd *ldappassgrp_getpwbyuid(uid_t userid,
 122                uint32 **grp_rids, int *num_grps,
 123                uint32 **als_rids, int *num_alss)
 124 {
 125         struct smb_passwd *ret;
 126
 127         if(!ldap_connect())
 128                 return NULL;
 129
 130         ldap_search_by_uid(userid);
 131         ldappassgrp_member("group", grp_rids, num_grps);
 132         ldappassgrp_member("alias", als_rids, num_alss);
 133         ret = ldap_getpw();
 134
 135         ldap_disconnect();
 136         return ret;
 137 }
 138
 139 static struct smb_passwd *ldappassgrp_getpwbyrid(uint32 user_rid,
 140                uint32 **grp_rids, int *num_grps,
 141                uint32 **als_rids, int *num_alss)
 142 {
 143         struct smb_passwd *ret;
 144
 145         if(!ldap_connect())
 146                 return NULL;
 147
 148         ldap_search_by_rid(user_rid);
 149         ldappassgrp_member("group", grp_rids, num_grps);
 150         ldappassgrp_member("alias", als_rids, num_alss);
 151         ret = ldap_getpw();
 152
 153         ldap_disconnect();
 154         return ret;
 155 }
 156
 157 static struct smb_passwd *ldappassgrp_getcurrentpw(void *vp,
 158                uint32 **grp_rids, int *num_grps,
 159                uint32 **als_rids, int *num_alss)
 160 {
 161         ldappassgrp_member("group", grp_rids, num_grps);
 162         ldappassgrp_member("alias", als_rids, num_alss);
 163         return ldap_getpw();
 164 }
 165
 166
 167
 168 static struct passgrp_ops ldappassgrp_ops =
 169 {
 170         ldappassgrp_enumfirst,
 171         ldappassgrp_enumclose,
 172         ldappassgrp_getdbpos,
 173         ldappassgrp_setdbpos,
 174
 175         ldappassgrp_getpwbynam,
 176         ldappassgrp_getpwbyuid,
 177         ldappassgrp_getpwbyrid,
 178         ldappassgrp_getcurrentpw,
 179 };
 180
 181 struct passgrp_ops *ldap_initialise_password_grp(void)
 182 {
 183         return &ldappassgrp_ops;
 184 }
 185
 186 #else
 187  void passgrpldap_dummy_function(void);
 188  void passgrpldap_dummy_function(void) { } /* stop some compilers complaining */
 189 #endif
 190