libcli/netlogon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    CLDAP server structures
   5
   6    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "../libcli/netlogon.h"
  24
  25 #undef DEBUG
  26 #define DEBUG(x, y)
  27 #undef DEBUGLVL
  28 #define DEBUGLVL(x) false
  29 #undef DEBUGLEVEL
  30 #define DEBUGLEVEL 0
  31
  32 NTSTATUS push_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
  33                                          struct netlogon_samlogon_response *response)
  34 {
  35         enum ndr_err_code ndr_err;
  36         if (response->ntver == NETLOGON_NT_VERSION_1) {
  37                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  38                                                &response->data.nt4,
  39                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  40         } else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
  41                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  42                                                &response->data.nt5_ex,
  43                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
  44         } else if (response->ntver & NETLOGON_NT_VERSION_5) {
  45                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  46                                                &response->data.nt5,
  47                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
  48         } else {
  49                 DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
  50                 return NT_STATUS_INVALID_PARAMETER;
  51         }
  52         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  53                 DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
  54                          response->ntver));
  55                 return ndr_map_error2ntstatus(ndr_err);
  56         }
  57         return NT_STATUS_OK;
  58 }
  59
  60 NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
  61                                          struct netlogon_samlogon_response *response)
  62 {
  63         uint32_t ntver;
  64         enum ndr_err_code ndr_err;
  65
  66         if (data->length < 8) {
  67                 return NT_STATUS_BUFFER_TOO_SMALL;
  68         }
  69
  70         /* lmnttoken */
  71         if (SVAL(data->data, data->length - 4) != 0xffff) {
  72                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  73         }
  74         /* lm20token */
  75         if (SVAL(data->data, data->length - 2) != 0xffff) {
  76                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  77         }
  78
  79         ntver = IVAL(data->data, data->length - 8);
  80
  81         if (ntver == NETLOGON_NT_VERSION_1) {
  82                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
  83                                                    &response->data.nt4,
  84                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  85                 response->ntver = NETLOGON_NT_VERSION_1;
  86                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
  87                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40,
  88                                         &response->data.nt4);
  89                 }
  90
  91         } else if (ntver & NETLOGON_NT_VERSION_5EX) {
  92                 struct ndr_pull *ndr;
  93                 ndr = ndr_pull_init_blob(data, mem_ctx);
  94                 if (!ndr) {
  95                         return NT_STATUS_NO_MEMORY;
  96                 }
  97                 ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
  98                         ndr, NDR_SCALARS|NDR_BUFFERS, &response->data.nt5_ex,
  99                         ntver);
 100                 if (ndr->offset < ndr->data_size) {
 101                         ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
 102                                                  "not all bytes consumed ofs[%u] size[%u]",
 103                                                  ndr->offset, ndr->data_size);
 104                 }
 105                 response->ntver = NETLOGON_NT_VERSION_5EX;
 106                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 107                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
 108                                         &response->data.nt5_ex);
 109                 }
 110
 111         } else if (ntver & NETLOGON_NT_VERSION_5) {
 112                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 113                                                    &response->data.nt5,
 114                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
 115                 response->ntver = NETLOGON_NT_VERSION_5;
 116                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 117                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
 118                                         &response->data.nt5);
 119                 }
 120         } else {
 121                 DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
 122                          ntver));
 123                 dump_data(10, data->data, data->length);
 124                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 125         }
 126
 127         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 128                 DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
 129                          ntver));
 130                 dump_data(10, data->data, data->length);
 131                 return ndr_map_error2ntstatus(ndr_err);
 132         }
 133
 134         return NT_STATUS_OK;
 135 }
 136
 137 void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
 138 {
 139         struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
 140         switch (response->ntver) {
 141         case NETLOGON_NT_VERSION_5EX:
 142                 break;
 143         case NETLOGON_NT_VERSION_5:
 144                 ZERO_STRUCT(response_5_ex);
 145                 response_5_ex.command = response->data.nt5.command;
 146                 response_5_ex.pdc_name = response->data.nt5.pdc_name;
 147                 response_5_ex.user_name = response->data.nt5.user_name;
 148                 response_5_ex.domain_name = response->data.nt5.domain_name;
 149                 response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
 150                 response_5_ex.forest = response->data.nt5.forest;
 151                 response_5_ex.dns_domain = response->data.nt5.dns_domain;
 152                 response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
 153                 response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
 154                 response_5_ex.server_type = response->data.nt5.server_type;
 155                 response_5_ex.nt_version = response->data.nt5.nt_version;
 156                 response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
 157                 response_5_ex.lm20_token = response->data.nt5.lm20_token;
 158                 response->ntver = NETLOGON_NT_VERSION_5EX;
 159                 response->data.nt5_ex = response_5_ex;
 160                 break;
 161
 162         case NETLOGON_NT_VERSION_1:
 163                 ZERO_STRUCT(response_5_ex);
 164                 response_5_ex.command = response->data.nt4.command;
 165                 response_5_ex.pdc_name = response->data.nt4.pdc_name;
 166                 response_5_ex.user_name = response->data.nt4.user_name;
 167                 response_5_ex.domain_name = response->data.nt4.domain_name;
 168                 response_5_ex.nt_version = response->data.nt4.nt_version;
 169                 response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
 170                 response_5_ex.lm20_token = response->data.nt4.lm20_token;
 171                 response->ntver = NETLOGON_NT_VERSION_5EX;
 172                 response->data.nt5_ex = response_5_ex;
 173                 break;
 174         }
 175         return;
 176 }
 177
 178 NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 179                                     struct nbt_netlogon_response *response)
 180 {
 181         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 182         enum ndr_err_code ndr_err;
 183         switch (response->response_type) {
 184         case NETLOGON_GET_PDC:
 185                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
 186                                                &response->data.get_pdc,
 187                                                (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
 188                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 189                         status = ndr_map_error2ntstatus(ndr_err);
 190                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 191                                  (int)data->length, nt_errstr(status)));
 192                         if (DEBUGLVL(10)) {
 193                                 file_save("netlogon.dat", data->data, data->length);
 194                         }
 195                         return status;
 196                 }
 197                 status = NT_STATUS_OK;
 198                 break;
 199         case NETLOGON_SAMLOGON:
 200                 status = push_netlogon_samlogon_response(
 201                         data, mem_ctx,
 202                         &response->data.samlogon);
 203                 break;
 204         }
 205         return status;
 206 }
 207
 208
 209 NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 210                                          struct nbt_netlogon_response *response)
 211 {
 212         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 213         enum netlogon_command command;
 214         enum ndr_err_code ndr_err;
 215         if (data->length < 4) {
 216                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 217         }
 218
 219         command = SVAL(data->data, 0);
 220
 221         switch (command) {
 222         case NETLOGON_RESPONSE_FROM_PDC:
 223                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 224                                                    &response->data.get_pdc,
 225                                                    (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
 226                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 227                         status = ndr_map_error2ntstatus(ndr_err);
 228                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 229                                  (int)data->length, nt_errstr(status)));
 230                         if (DEBUGLVL(10)) {
 231                                 file_save("netlogon.dat", data->data, data->length);
 232                         }
 233                         return status;
 234                 }
 235                 status = NT_STATUS_OK;
 236                 response->response_type = NETLOGON_GET_PDC;
 237                 break;
 238         case LOGON_SAM_LOGON_RESPONSE:
 239         case LOGON_SAM_LOGON_PAUSE_RESPONSE:
 240         case LOGON_SAM_LOGON_USER_UNKNOWN:
 241         case LOGON_SAM_LOGON_RESPONSE_EX:
 242         case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
 243         case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
 244                 status = pull_netlogon_samlogon_response(
 245                         data, mem_ctx,
 246                         &response->data.samlogon);
 247                 response->response_type = NETLOGON_SAMLOGON;
 248                 break;
 249
 250         /* These levels are queries, not responses */
 251         case LOGON_PRIMARY_QUERY:
 252         case NETLOGON_ANNOUNCE_UAS:
 253         case LOGON_SAM_LOGON_REQUEST:
 254                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 255         }
 256
 257         return status;
 258
 259 }