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 sockaddr_storage ss;
  42         char addrstr[INET6_ADDRSTRLEN];
  43         const char *dest_str;
  44         int ret;
  45         struct tsocket_address *dest_addr;
  46
  47         if (!interpret_string_addr_prefer_ipv4(&ss, server, 0)) {
  48                 DEBUG(2,("Failed to resolve[%s] into an address for cldap\n",
  49                         server));
  50                 return false;
  51         }
  52         dest_str = print_sockaddr(addrstr, sizeof(addrstr), &ss);
  53
  54         ret = tsocket_address_inet_from_strings(mem_ctx, "ip",
  55                                                 dest_str, LDAP_PORT,
  56                                                 &dest_addr);
  57         if (ret != 0) {
  58                 status = map_nt_error_from_unix(errno);
  59                 DEBUG(2,("Failed to create cldap tsocket_address for %s - %s\n",
  60                          dest_str, nt_errstr(status)));
  61                 return false;
  62         }
  63
  64         /*
  65          * as we use a connected udp socket
  66          */
  67         status = cldap_socket_init(mem_ctx, NULL, NULL, dest_addr, &cldap);
  68         TALLOC_FREE(dest_addr);
  69         if (!NT_STATUS_IS_OK(status)) {
  70                 DEBUG(2,("Failed to create cldap socket to %s: %s\n",
  71                          dest_str, nt_errstr(status)));
  72                 return false;
  73         }
  74
  75         reply = talloc(cldap, struct netlogon_samlogon_response);
  76         if (!reply) {
  77                 goto failed;
  78         }
  79
  80         /*
  81          * as we use a connected socket, so we don't need to specify the
  82          * destination
  83          */
  84         io.in.dest_address      = NULL;
  85         io.in.dest_port         = 0;
  86         io.in.realm             = realm;
  87         io.in.host              = NULL;
  88         io.in.user              = NULL;
  89         io.in.domain_guid       = NULL;
  90         io.in.domain_sid        = NULL;
  91         io.in.acct_control      = 0;
  92         io.in.version           = nt_version;
  93         io.in.map_response      = false;
  94
  95         status = cldap_netlogon(cldap, NULL, reply, &io);
  96         if (!NT_STATUS_IS_OK(status)) {
  97                 DEBUG(2,("cldap_netlogon() failed: %s\n", nt_errstr(status)));
  98                 goto failed;
  99         }
 100
 101         *reply = io.out.netlogon;
 102         *_reply = talloc_move(mem_ctx, &reply);
 103         TALLOC_FREE(cldap);
 104         return true;
 105 failed:
 106         TALLOC_FREE(cldap);
 107         return false;
 108 }
 109
 110 /*******************************************************************
 111   do a cldap netlogon query.  Always 389/udp
 112 *******************************************************************/
 113
 114 bool ads_cldap_netlogon_5(TALLOC_CTX *mem_ctx,
 115                           const char *server,
 116                           const char *realm,
 117                           struct NETLOGON_SAM_LOGON_RESPONSE_EX *reply5)
 118 {
 119         uint32_t nt_version = NETLOGON_NT_VERSION_5 | NETLOGON_NT_VERSION_5EX;
 120         struct netlogon_samlogon_response *reply = NULL;
 121         bool ret;
 122
 123         ret = ads_cldap_netlogon(mem_ctx, server, realm, nt_version, &reply);
 124         if (!ret) {
 125                 return false;
 126         }
 127
 128         if (reply->ntver != NETLOGON_NT_VERSION_5EX) {
 129                 DEBUG(0,("ads_cldap_netlogon_5: nt_version mismatch: 0x%08x\n",
 130                         reply->ntver));
 131                 return false;
 132         }
 133
 134         *reply5 = reply->data.nt5_ex;
 135
 136         return true;
 137 }