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 NTSTATUS push_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
  26                                          struct netlogon_samlogon_response *response)
  27 {
  28         enum ndr_err_code ndr_err;
  29         if (response->ntver == NETLOGON_NT_VERSION_1) {
  30                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  31                                                &response->data.nt4,
  32                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  33         } else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
  34                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  35                                                &response->data.nt5_ex,
  36                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
  37         } else if (response->ntver & NETLOGON_NT_VERSION_5) {
  38                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  39                                                &response->data.nt5,
  40                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
  41         } else {
  42                 DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
  43                 return NT_STATUS_INVALID_PARAMETER;
  44         }
  45         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  46                 DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
  47                          response->ntver));
  48                 return ndr_map_error2ntstatus(ndr_err);
  49         }
  50         return NT_STATUS_OK;
  51 }
  52
  53 NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
  54                                          struct netlogon_samlogon_response *response)
  55 {
  56         uint32_t ntver;
  57         enum ndr_err_code ndr_err;
  58
  59         if (data->length < 8) {
  60                 return NT_STATUS_BUFFER_TOO_SMALL;
  61         }
  62
  63         /* lmnttoken */
  64         if (SVAL(data->data, data->length - 4) != 0xffff) {
  65                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  66         }
  67         /* lm20token */
  68         if (SVAL(data->data, data->length - 2) != 0xffff) {
  69                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  70         }
  71
  72         ntver = IVAL(data->data, data->length - 8);
  73
  74         if (ntver == NETLOGON_NT_VERSION_1) {
  75                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
  76                                                    &response->data.nt4,
  77                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  78                 response->ntver = NETLOGON_NT_VERSION_1;
  79                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
  80                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40,
  81                                         &response->data.nt4);
  82                 }
  83
  84         } else if (ntver & NETLOGON_NT_VERSION_5EX) {
  85                 struct ndr_pull *ndr;
  86                 ndr = ndr_pull_init_blob(data, mem_ctx);
  87                 if (!ndr) {
  88                         return NT_STATUS_NO_MEMORY;
  89                 }
  90                 ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
  91                         ndr, NDR_SCALARS|NDR_BUFFERS, &response->data.nt5_ex,
  92                         ntver);
  93                 if (ndr->offset < ndr->data_size) {
  94                         ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
  95                                                  "not all bytes consumed ofs[%u] size[%u]",
  96                                                  ndr->offset, ndr->data_size);
  97                 }
  98                 response->ntver = NETLOGON_NT_VERSION_5EX;
  99                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 100                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
 101                                         &response->data.nt5_ex);
 102                 }
 103
 104         } else if (ntver & NETLOGON_NT_VERSION_5) {
 105                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 106                                                    &response->data.nt5,
 107                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
 108                 response->ntver = NETLOGON_NT_VERSION_5;
 109                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 110                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
 111                                         &response->data.nt5);
 112                 }
 113         } else {
 114                 DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
 115                          ntver));
 116                 dump_data(10, data->data, data->length);
 117                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 118         }
 119
 120         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 121                 DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
 122                          ntver));
 123                 dump_data(10, data->data, data->length);
 124                 return ndr_map_error2ntstatus(ndr_err);
 125         }
 126
 127         return NT_STATUS_OK;
 128 }
 129
 130 void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
 131 {
 132         struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
 133         switch (response->ntver) {
 134         case NETLOGON_NT_VERSION_5EX:
 135                 break;
 136         case NETLOGON_NT_VERSION_5:
 137                 ZERO_STRUCT(response_5_ex);
 138                 response_5_ex.command = response->data.nt5.command;
 139                 response_5_ex.pdc_name = response->data.nt5.pdc_name;
 140                 response_5_ex.user_name = response->data.nt5.user_name;
 141                 response_5_ex.domain_name = response->data.nt5.domain_name;
 142                 response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
 143                 response_5_ex.forest = response->data.nt5.forest;
 144                 response_5_ex.dns_domain = response->data.nt5.dns_domain;
 145                 response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
 146                 response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
 147                 response_5_ex.server_type = response->data.nt5.server_type;
 148                 response_5_ex.nt_version = response->data.nt5.nt_version;
 149                 response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
 150                 response_5_ex.lm20_token = response->data.nt5.lm20_token;
 151                 response->ntver = NETLOGON_NT_VERSION_5EX;
 152                 response->data.nt5_ex = response_5_ex;
 153                 break;
 154
 155         case NETLOGON_NT_VERSION_1:
 156                 ZERO_STRUCT(response_5_ex);
 157                 response_5_ex.command = response->data.nt4.command;
 158                 response_5_ex.pdc_name = response->data.nt4.pdc_name;
 159                 response_5_ex.user_name = response->data.nt4.user_name;
 160                 response_5_ex.domain_name = response->data.nt4.domain_name;
 161                 response_5_ex.nt_version = response->data.nt4.nt_version;
 162                 response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
 163                 response_5_ex.lm20_token = response->data.nt4.lm20_token;
 164                 response->ntver = NETLOGON_NT_VERSION_5EX;
 165                 response->data.nt5_ex = response_5_ex;
 166                 break;
 167         }
 168         return;
 169 }
 170
 171 NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 172                                     struct nbt_netlogon_response *response)
 173 {
 174         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 175         enum ndr_err_code ndr_err;
 176         switch (response->response_type) {
 177         case NETLOGON_GET_PDC:
 178                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
 179                                                &response->data.get_pdc,
 180                                                (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
 181                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 182                         status = ndr_map_error2ntstatus(ndr_err);
 183                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 184                                  (int)data->length, nt_errstr(status)));
 185                         if (DEBUGLVL(10)) {
 186                                 file_save("netlogon.dat", data->data, data->length);
 187                         }
 188                         return status;
 189                 }
 190                 status = NT_STATUS_OK;
 191                 break;
 192         case NETLOGON_SAMLOGON:
 193                 status = push_netlogon_samlogon_response(
 194                         data, mem_ctx,
 195                         &response->data.samlogon);
 196                 break;
 197         }
 198         return status;
 199 }
 200
 201
 202 NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 203                                          struct nbt_netlogon_response *response)
 204 {
 205         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 206         enum netlogon_command command;
 207         enum ndr_err_code ndr_err;
 208         if (data->length < 4) {
 209                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 210         }
 211
 212         command = SVAL(data->data, 0);
 213
 214         switch (command) {
 215         case NETLOGON_RESPONSE_FROM_PDC:
 216                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 217                                                    &response->data.get_pdc,
 218                                                    (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
 219                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 220                         status = ndr_map_error2ntstatus(ndr_err);
 221                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 222                                  (int)data->length, nt_errstr(status)));
 223                         if (DEBUGLVL(10)) {
 224                                 file_save("netlogon.dat", data->data, data->length);
 225                         }
 226                         return status;
 227                 }
 228                 status = NT_STATUS_OK;
 229                 response->response_type = NETLOGON_GET_PDC;
 230                 break;
 231         case LOGON_SAM_LOGON_RESPONSE:
 232         case LOGON_SAM_LOGON_PAUSE_RESPONSE:
 233         case LOGON_SAM_LOGON_USER_UNKNOWN:
 234         case LOGON_SAM_LOGON_RESPONSE_EX:
 235         case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
 236         case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
 237                 status = pull_netlogon_samlogon_response(
 238                         data, mem_ctx,
 239                         &response->data.samlogon);
 240                 response->response_type = NETLOGON_SAMLOGON;
 241                 break;
 242
 243         /* These levels are queries, not responses */
 244         case LOGON_PRIMARY_QUERY:
 245         case NETLOGON_ANNOUNCE_UAS:
 246         case LOGON_SAM_LOGON_REQUEST:
 247                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 248         }
 249
 250         return status;
 251
 252 }