source3/libads/cldap.c

   1 /*
   2    Samba Unix/Linux SMB client library
   3    net ads cldap functions
   4    Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
   5    Copyright (C) 2003 Jim McDonough (jmcd@us.ibm.com)
   6    Copyright (C) 2008 Guenther Deschner (gd@samba.org)
   7    Copyright (C) 2009 Stefan Metzmacher (metze@samba.org)
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "../libcli/cldap/cldap.h"
  25 #include "../lib/tsocket/tsocket.h"
  26
  27 /*******************************************************************
  28   do a cldap netlogon query.  Always 389/udp
  29 *******************************************************************/
  30
  31 bool ads_cldap_netlogon(TALLOC_CTX *mem_ctx,
  32                         const char *server,
  33                         const char *realm,
  34                         uint32_t nt_version,
  35                         struct netlogon_samlogon_response **_reply)
  36 {
  37         struct cldap_socket *cldap;
  38         struct cldap_netlogon io;
  39         struct netlogon_samlogon_response *reply;
  40         NTSTATUS status;
  41         struct in_addr addr;
  42         char addrstr[INET_ADDRSTRLEN];
  43         const char *dest_str;
  44         int ret;
  45         struct tsocket_address *dest_addr;
  46
  47         addr = interpret_addr2(server);
  48         dest_str = inet_ntop(AF_INET, &addr,
  49                              addrstr, sizeof(addrstr));
  50         if (!dest_str) {
  51                 DEBUG(2,("Failed to resolve[%s] into an address for cldap\n",
  52                          server));
  53                 return false;
  54         }
  55
  56         ret = tsocket_address_inet_from_strings(mem_ctx, "ipv4",
  57                                                 dest_str, LDAP_PORT,
  58                                                 &dest_addr);
  59         if (ret != 0) {
  60                 status = map_nt_error_from_unix(errno);
  61                 DEBUG(2,("Failed to create cldap tsocket_address for %s - %s\n",
  62                          dest_str, nt_errstr(status)));
  63                 return false;
  64         }
  65
  66         /*
  67          * as we use a connected udp socket
  68          */
  69         status = cldap_socket_init(mem_ctx, NULL, NULL, dest_addr, &cldap);
  70         TALLOC_FREE(dest_addr);
  71         if (!NT_STATUS_IS_OK(status)) {
  72                 DEBUG(2,("Failed to create cldap socket to %s: %s\n",
  73                          dest_str, nt_errstr(status)));
  74                 return false;
  75         }
  76
  77         reply = talloc(cldap, struct netlogon_samlogon_response);
  78         if (!reply) {
  79                 goto failed;
  80         }
  81
  82         /*
  83          * as we use a connected socket, so we don't need to specify the
  84          * destination
  85          */
  86         io.in.dest_address      = NULL;
  87         io.in.dest_port         = 0;
  88         io.in.realm             = realm;
  89         io.in.host              = NULL;
  90         io.in.user              = NULL;
  91         io.in.domain_guid       = NULL;
  92         io.in.domain_sid        = NULL;
  93         io.in.acct_control      = 0;
  94         io.in.version           = nt_version;
  95         io.in.map_response      = false;
  96
  97         status = cldap_netlogon(cldap, NULL, reply, &io);
  98         if (!NT_STATUS_IS_OK(status)) {
  99                 DEBUG(2,("cldap_netlogon() failed: %s\n", nt_errstr(status)));
 100                 goto failed;
 101         }
 102
 103         *reply = io.out.netlogon;
 104         *_reply = talloc_move(mem_ctx, &reply);
 105         TALLOC_FREE(cldap);
 106         return true;
 107 failed:
 108         TALLOC_FREE(cldap);
 109         return false;
 110 }
 111
 112 /*******************************************************************
 113   do a cldap netlogon query.  Always 389/udp
 114 *******************************************************************/
 115
 116 bool ads_cldap_netlogon_5(TALLOC_CTX *mem_ctx,
 117                           const char *server,
 118                           const char *realm,
 119                           struct NETLOGON_SAM_LOGON_RESPONSE_EX *reply5)
 120 {
 121         uint32_t nt_version = NETLOGON_NT_VERSION_5 | NETLOGON_NT_VERSION_5EX;
 122         struct netlogon_samlogon_response *reply = NULL;
 123         bool ret;
 124
 125         ret = ads_cldap_netlogon(mem_ctx, server, realm, nt_version, &reply);
 126         if (!ret) {
 127                 return false;
 128         }
 129
 130         if (reply->ntver != NETLOGON_NT_VERSION_5EX) {
 131                 DEBUG(0,("ads_cldap_netlogon_5: nt_version mismatch: 0x%08x\n",
 132                         reply->ntver));
 133                 return false;
 134         }
 135
 136         *reply5 = reply->data.nt5_ex;
 137
 138         return true;
 139 }