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