libcli/netlogon/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/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                         TALLOC_FREE(ndr);
  95                         /*
  96                          * We need to handle a bug in FreeIPA (at least <= 4.1.2).
  97                          *
  98                          * They include the ip address information without setting
  99                          * NETLOGON_NT_VERSION_5EX_WITH_IP, while using
 100                          * ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX instead of
 101                          * ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags.
 102                          */
 103                         ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 104                                                    &response->data.nt5,
 105                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX);
 106                 }
 107                 response->ntver = NETLOGON_NT_VERSION_5EX;
 108                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 109                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
 110                                         &response->data.nt5_ex);
 111                 }
 112
 113         } else if (ntver & NETLOGON_NT_VERSION_5) {
 114                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 115                                                    &response->data.nt5,
 116                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
 117                 response->ntver = NETLOGON_NT_VERSION_5;
 118                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 119                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
 120                                         &response->data.nt5);
 121                 }
 122         } else {
 123                 DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
 124                          ntver));
 125                 dump_data(10, data->data, data->length);
 126                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 127         }
 128
 129         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 130                 DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
 131                          ntver));
 132                 dump_data(10, data->data, data->length);
 133                 return ndr_map_error2ntstatus(ndr_err);
 134         }
 135
 136         return NT_STATUS_OK;
 137 }
 138
 139 void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
 140 {
 141         struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
 142         switch (response->ntver) {
 143         case NETLOGON_NT_VERSION_5EX:
 144                 break;
 145         case NETLOGON_NT_VERSION_5:
 146                 ZERO_STRUCT(response_5_ex);
 147                 response_5_ex.command = response->data.nt5.command;
 148                 response_5_ex.pdc_name = response->data.nt5.pdc_name;
 149                 response_5_ex.user_name = response->data.nt5.user_name;
 150                 response_5_ex.domain_name = response->data.nt5.domain_name;
 151                 response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
 152                 response_5_ex.forest = response->data.nt5.forest;
 153                 response_5_ex.dns_domain = response->data.nt5.dns_domain;
 154                 response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
 155                 response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
 156                 response_5_ex.server_type = response->data.nt5.server_type;
 157                 response_5_ex.nt_version = response->data.nt5.nt_version;
 158                 response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
 159                 response_5_ex.lm20_token = response->data.nt5.lm20_token;
 160                 response->ntver = NETLOGON_NT_VERSION_5EX;
 161                 response->data.nt5_ex = response_5_ex;
 162                 break;
 163
 164         case NETLOGON_NT_VERSION_1:
 165                 ZERO_STRUCT(response_5_ex);
 166                 response_5_ex.command = response->data.nt4.command;
 167                 response_5_ex.pdc_name = response->data.nt4.pdc_name;
 168                 response_5_ex.user_name = response->data.nt4.user_name;
 169                 response_5_ex.domain_name = response->data.nt4.domain_name;
 170                 response_5_ex.nt_version = response->data.nt4.nt_version;
 171                 response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
 172                 response_5_ex.lm20_token = response->data.nt4.lm20_token;
 173                 response->ntver = NETLOGON_NT_VERSION_5EX;
 174                 response->data.nt5_ex = response_5_ex;
 175                 break;
 176         }
 177         return;
 178 }
 179
 180 NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 181                                     struct nbt_netlogon_response *response)
 182 {
 183         NTSTATUS status;
 184         enum ndr_err_code ndr_err;
 185         switch (response->response_type) {
 186         case NETLOGON_GET_PDC:
 187                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
 188                                                &response->data.get_pdc,
 189                                                (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
 190                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 191                         status = ndr_map_error2ntstatus(ndr_err);
 192                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 193                                  (int)data->length, nt_errstr(status)));
 194                         if (DEBUGLVL(10)) {
 195                                 file_save("netlogon.dat", data->data, data->length);
 196                         }
 197                         return status;
 198                 }
 199                 status = NT_STATUS_OK;
 200                 break;
 201         case NETLOGON_SAMLOGON:
 202                 status = push_netlogon_samlogon_response(
 203                         data, mem_ctx,
 204                         &response->data.samlogon);
 205                 break;
 206         case NETLOGON_RESPONSE2:
 207                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
 208                                                &response->data.response2,
 209                                                (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response2);
 210                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 211                         return ndr_map_error2ntstatus(ndr_err);
 212                 }
 213                 status = NT_STATUS_OK;
 214                 break;
 215         default:
 216                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 217                 break;
 218         }
 219
 220         return status;
 221 }
 222
 223
 224 NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
 225                                          struct nbt_netlogon_response *response)
 226 {
 227         NTSTATUS status;
 228         enum netlogon_command command;
 229         enum ndr_err_code ndr_err;
 230         if (data->length < 4) {
 231                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 232         }
 233
 234         command = SVAL(data->data, 0);
 235
 236         switch (command) {
 237         case NETLOGON_RESPONSE_FROM_PDC:
 238                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 239                                                    &response->data.get_pdc,
 240                                                    (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
 241                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 242                         status = ndr_map_error2ntstatus(ndr_err);
 243                         DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
 244                                  (int)data->length, nt_errstr(status)));
 245                         if (DEBUGLVL(10)) {
 246                                 file_save("netlogon.dat", data->data, data->length);
 247                         }
 248                         return status;
 249                 }
 250                 status = NT_STATUS_OK;
 251                 response->response_type = NETLOGON_GET_PDC;
 252                 break;
 253         case LOGON_RESPONSE2:
 254                 ndr_err = ndr_pull_struct_blob(data, mem_ctx, &response->data.response2,
 255                         (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response2);
 256                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 257                         return ndr_map_error2ntstatus(ndr_err);
 258                 }
 259                 status = NT_STATUS_OK;
 260                 response->response_type = NETLOGON_RESPONSE2;
 261                 break;
 262         case LOGON_SAM_LOGON_RESPONSE:
 263         case LOGON_SAM_LOGON_PAUSE_RESPONSE:
 264         case LOGON_SAM_LOGON_USER_UNKNOWN:
 265         case LOGON_SAM_LOGON_RESPONSE_EX:
 266         case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
 267         case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
 268                 status = pull_netlogon_samlogon_response(
 269                         data, mem_ctx,
 270                         &response->data.samlogon);
 271                 response->response_type = NETLOGON_SAMLOGON;
 272                 break;
 273
 274         /* These levels are queries, not responses */
 275         case LOGON_PRIMARY_QUERY:
 276         case LOGON_REQUEST:
 277         case NETLOGON_ANNOUNCE_UAS:
 278         case LOGON_SAM_LOGON_REQUEST:
 279         default:
 280                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 281         }
 282
 283         return status;
 284
 285 }