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 smb_iconv_convenience *iconv_convenience,
  34                                          struct netlogon_samlogon_response *response)
  35 {
  36         enum ndr_err_code ndr_err;
  37         if (response->ntver == NETLOGON_NT_VERSION_1) {
  38                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  39                                                iconv_convenience,
  40                                                &response->nt4,
  41                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  42         } else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
  43                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  44                                                iconv_convenience,
  45                                                &response->nt5_ex,
  46                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
  47         } else if (response->ntver & NETLOGON_NT_VERSION_5) {
  48                 ndr_err = ndr_push_struct_blob(data, mem_ctx,
  49                                                iconv_convenience,
  50                                                &response->nt5,
  51                                                (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
  52         } else {
  53                 DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
  54                 return NT_STATUS_INVALID_PARAMETER;
  55         }
  56         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  57                 DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
  58                          response->ntver));
  59                 return ndr_map_error2ntstatus(ndr_err);
  60         }
  61         return NT_STATUS_OK;
  62 }
  63
  64 NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
  65                                          struct smb_iconv_convenience *iconv_convenience,
  66                                          struct netlogon_samlogon_response *response)
  67 {
  68         uint32_t ntver;
  69         enum ndr_err_code ndr_err;
  70
  71         if (data->length < 8) {
  72                 return NT_STATUS_BUFFER_TOO_SMALL;
  73         }
  74
  75         /* lmnttoken */
  76         if (SVAL(data->data, data->length - 4) != 0xffff) {
  77                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  78         }
  79         /* lm20token */
  80         if (SVAL(data->data, data->length - 2) != 0xffff) {
  81                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
  82         }
  83
  84         ntver = IVAL(data->data, data->length - 8);
  85
  86         if (ntver == NETLOGON_NT_VERSION_1) {
  87                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
  88                                                    iconv_convenience,
  89                                                    &response->nt4,
  90                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
  91                 response->ntver = NETLOGON_NT_VERSION_1;
  92                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
  93                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40, &response->nt4);
  94                 }
  95
  96         } else if (ntver & NETLOGON_NT_VERSION_5EX) {
  97                 struct ndr_pull *ndr;
  98                 ndr = ndr_pull_init_blob(data, mem_ctx, iconv_convenience);
  99                 if (!ndr) {
 100                         return NT_STATUS_NO_MEMORY;
 101                 }
 102                 ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(ndr, NDR_SCALARS|NDR_BUFFERS, &response->nt5_ex, ntver);
 103                 if (ndr->offset < ndr->data_size) {
 104                         ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
 105                                                  "not all bytes consumed ofs[%u] size[%u]",
 106                                                  ndr->offset, ndr->data_size);
 107                 }
 108                 response->ntver = NETLOGON_NT_VERSION_5EX;
 109                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 110                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX, &response->nt5_ex);
 111                 }
 112
 113         } else if (ntver & NETLOGON_NT_VERSION_5) {
 114                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
 115                                                    iconv_convenience,
 116                                                    &response->nt5,
 117                                                    (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
 118                 response->ntver = NETLOGON_NT_VERSION_5;
 119                 if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
 120                         NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE, &response->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->nt5.command;
 148                 response_5_ex.pdc_name = response->nt5.pdc_name;
 149                 response_5_ex.user_name = response->nt5.user_name;
 150                 response_5_ex.domain = response->nt5.domain_name;
 151                 response_5_ex.domain_uuid = response->nt5.domain_uuid;
 152                 response_5_ex.forest = response->nt5.forest;
 153                 response_5_ex.dns_domain = response->nt5.dns_domain;
 154                 response_5_ex.pdc_dns_name = response->nt5.pdc_dns_name;
 155                 response_5_ex.sockaddr.pdc_ip = response->nt5.pdc_ip;
 156                 response_5_ex.server_type = response->nt5.server_type;
 157                 response_5_ex.nt_version = response->nt5.nt_version;
 158                 response_5_ex.lmnt_token = response->nt5.lmnt_token;
 159                 response_5_ex.lm20_token = response->nt5.lm20_token;
 160                 response->ntver = NETLOGON_NT_VERSION_5EX;
 161                 response->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->nt4.command;
 167                 response_5_ex.pdc_name = response->nt4.server;
 168                 response_5_ex.user_name = response->nt4.user_name;
 169                 response_5_ex.domain = response->nt4.domain;
 170                 response_5_ex.nt_version = response->nt4.nt_version;
 171                 response_5_ex.lmnt_token = response->nt4.lmnt_token;
 172                 response_5_ex.lm20_token = response->nt4.lm20_token;
 173                 response->ntver = NETLOGON_NT_VERSION_5EX;
 174                 response->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 smb_iconv_convenience *iconv_convenience,
 182                                     struct nbt_netlogon_response *response)
 183 {
 184         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 185         enum ndr_err_code ndr_err;
 186         switch (response->response_type) {
 187         case NETLOGON_GET_PDC:
 188                 ndr_err = ndr_push_struct_blob(data, mem_ctx, iconv_convenience, &response->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(data, mem_ctx, iconv_convenience, &response->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 smb_iconv_convenience *iconv_convenience,
 211                                          struct nbt_netlogon_response *response)
 212 {
 213         NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 214         enum netlogon_command command;
 215         enum ndr_err_code ndr_err;
 216         if (data->length < 4) {
 217                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 218         }
 219
 220         command = SVAL(data->data, 0);
 221
 222         switch (command) {
 223         case NETLOGON_RESPONSE_FROM_PDC:
 224                 ndr_err = ndr_pull_struct_blob_all(data, mem_ctx, iconv_convenience, &response->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(data, mem_ctx, iconv_convenience, &response->samlogon);
 245                 response->response_type = NETLOGON_SAMLOGON;
 246                 break;
 247
 248         /* These levels are queries, not responses */
 249         case LOGON_PRIMARY_QUERY:
 250         case NETLOGON_ANNOUNCE_UAS:
 251         case LOGON_SAM_LOGON_REQUEST:
 252                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 253         }
 254
 255         return status;
 256
 257 }