1 | /*
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2 | Unix SMB/CIFS implementation.
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3 |
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4 | CLDAP server structures
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5 |
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6 | Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
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7 |
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8 | This program is free software; you can redistribute it and/or modify
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9 | it under the terms of the GNU General Public License as published by
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10 | the Free Software Foundation; either version 3 of the License, or
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11 | (at your option) any later version.
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12 |
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13 | This program is distributed in the hope that it will be useful,
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | GNU General Public License for more details.
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17 |
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18 | You should have received a copy of the GNU General Public License
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19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 | */
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21 |
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22 | #include "includes.h"
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23 | #include "../libcli/netlogon.h"
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24 |
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25 | #undef DEBUG
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26 | #define DEBUG(x, y)
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27 | #undef DEBUGLVL
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28 | #define DEBUGLVL(x) false
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29 | #undef DEBUGLEVEL
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30 | #define DEBUGLEVEL 0
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31 |
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32 | NTSTATUS push_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
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33 | struct smb_iconv_convenience *iconv_convenience,
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34 | struct netlogon_samlogon_response *response)
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35 | {
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36 | enum ndr_err_code ndr_err;
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37 | if (response->ntver == NETLOGON_NT_VERSION_1) {
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38 | ndr_err = ndr_push_struct_blob(data, mem_ctx,
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39 | iconv_convenience,
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40 | &response->data.nt4,
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41 | (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
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42 | } else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
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43 | ndr_err = ndr_push_struct_blob(data, mem_ctx,
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44 | iconv_convenience,
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45 | &response->data.nt5_ex,
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46 | (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
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47 | } else if (response->ntver & NETLOGON_NT_VERSION_5) {
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48 | ndr_err = ndr_push_struct_blob(data, mem_ctx,
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49 | iconv_convenience,
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50 | &response->data.nt5,
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51 | (ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
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52 | } else {
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53 | DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
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54 | return NT_STATUS_INVALID_PARAMETER;
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55 | }
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56 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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57 | DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
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58 | response->ntver));
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59 | return ndr_map_error2ntstatus(ndr_err);
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60 | }
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61 | return NT_STATUS_OK;
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62 | }
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63 |
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64 | NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
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65 | struct smb_iconv_convenience *iconv_convenience,
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66 | struct netlogon_samlogon_response *response)
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67 | {
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68 | uint32_t ntver;
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69 | enum ndr_err_code ndr_err;
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70 |
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71 | if (data->length < 8) {
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72 | return NT_STATUS_BUFFER_TOO_SMALL;
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73 | }
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74 |
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75 | /* lmnttoken */
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76 | if (SVAL(data->data, data->length - 4) != 0xffff) {
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77 | return NT_STATUS_INVALID_NETWORK_RESPONSE;
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78 | }
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79 | /* lm20token */
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80 | if (SVAL(data->data, data->length - 2) != 0xffff) {
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81 | return NT_STATUS_INVALID_NETWORK_RESPONSE;
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82 | }
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83 |
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84 | ntver = IVAL(data->data, data->length - 8);
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85 |
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86 | if (ntver == NETLOGON_NT_VERSION_1) {
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87 | ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
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88 | iconv_convenience,
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89 | &response->data.nt4,
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90 | (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
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91 | response->ntver = NETLOGON_NT_VERSION_1;
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92 | if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
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93 | NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40,
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94 | &response->data.nt4);
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95 | }
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96 |
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97 | } else if (ntver & NETLOGON_NT_VERSION_5EX) {
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98 | struct ndr_pull *ndr;
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99 | ndr = ndr_pull_init_blob(data, mem_ctx, iconv_convenience);
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100 | if (!ndr) {
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101 | return NT_STATUS_NO_MEMORY;
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102 | }
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103 | ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
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104 | ndr, NDR_SCALARS|NDR_BUFFERS, &response->data.nt5_ex,
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105 | ntver);
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106 | if (ndr->offset < ndr->data_size) {
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107 | ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
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108 | "not all bytes consumed ofs[%u] size[%u]",
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109 | ndr->offset, ndr->data_size);
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110 | }
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111 | response->ntver = NETLOGON_NT_VERSION_5EX;
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112 | if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
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113 | NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
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114 | &response->data.nt5_ex);
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115 | }
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116 |
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117 | } else if (ntver & NETLOGON_NT_VERSION_5) {
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118 | ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
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119 | iconv_convenience,
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120 | &response->data.nt5,
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121 | (ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
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122 | response->ntver = NETLOGON_NT_VERSION_5;
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123 | if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
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124 | NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
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125 | &response->data.nt5);
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126 | }
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127 | } else {
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128 | DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
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129 | ntver));
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130 | dump_data(10, data->data, data->length);
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131 | return NT_STATUS_INVALID_NETWORK_RESPONSE;
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132 | }
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133 |
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134 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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135 | DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
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136 | ntver));
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137 | dump_data(10, data->data, data->length);
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138 | return ndr_map_error2ntstatus(ndr_err);
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139 | }
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140 |
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141 | return NT_STATUS_OK;
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142 | }
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143 |
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144 | void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
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145 | {
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146 | struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
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147 | switch (response->ntver) {
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148 | case NETLOGON_NT_VERSION_5EX:
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149 | break;
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150 | case NETLOGON_NT_VERSION_5:
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151 | ZERO_STRUCT(response_5_ex);
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152 | response_5_ex.command = response->data.nt5.command;
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153 | response_5_ex.pdc_name = response->data.nt5.pdc_name;
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154 | response_5_ex.user_name = response->data.nt5.user_name;
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155 | response_5_ex.domain = response->data.nt5.domain_name;
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156 | response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
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157 | response_5_ex.forest = response->data.nt5.forest;
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158 | response_5_ex.dns_domain = response->data.nt5.dns_domain;
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159 | response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
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160 | response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
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161 | response_5_ex.server_type = response->data.nt5.server_type;
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162 | response_5_ex.nt_version = response->data.nt5.nt_version;
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163 | response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
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164 | response_5_ex.lm20_token = response->data.nt5.lm20_token;
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165 | response->ntver = NETLOGON_NT_VERSION_5EX;
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166 | response->data.nt5_ex = response_5_ex;
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167 | break;
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168 |
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169 | case NETLOGON_NT_VERSION_1:
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170 | ZERO_STRUCT(response_5_ex);
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171 | response_5_ex.command = response->data.nt4.command;
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172 | response_5_ex.pdc_name = response->data.nt4.server;
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173 | response_5_ex.user_name = response->data.nt4.user_name;
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174 | response_5_ex.domain = response->data.nt4.domain;
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175 | response_5_ex.nt_version = response->data.nt4.nt_version;
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176 | response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
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177 | response_5_ex.lm20_token = response->data.nt4.lm20_token;
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178 | response->ntver = NETLOGON_NT_VERSION_5EX;
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179 | response->data.nt5_ex = response_5_ex;
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180 | break;
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181 | }
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182 | return;
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183 | }
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184 |
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185 | NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
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186 | struct smb_iconv_convenience *iconv_convenience,
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187 | struct nbt_netlogon_response *response)
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188 | {
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189 | NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
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190 | enum ndr_err_code ndr_err;
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191 | switch (response->response_type) {
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192 | case NETLOGON_GET_PDC:
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193 | ndr_err = ndr_push_struct_blob(data, mem_ctx,
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194 | iconv_convenience,
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195 | &response->data.get_pdc,
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196 | (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
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197 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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198 | status = ndr_map_error2ntstatus(ndr_err);
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199 | DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
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200 | (int)data->length, nt_errstr(status)));
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201 | if (DEBUGLVL(10)) {
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202 | file_save("netlogon.dat", data->data, data->length);
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203 | }
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204 | return status;
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205 | }
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206 | status = NT_STATUS_OK;
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207 | break;
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208 | case NETLOGON_SAMLOGON:
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209 | status = push_netlogon_samlogon_response(
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210 | data, mem_ctx, iconv_convenience,
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211 | &response->data.samlogon);
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212 | break;
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213 | }
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214 | return status;
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215 | }
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216 |
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217 |
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218 | NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
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219 | struct smb_iconv_convenience *iconv_convenience,
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220 | struct nbt_netlogon_response *response)
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221 | {
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222 | NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
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223 | enum netlogon_command command;
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224 | enum ndr_err_code ndr_err;
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225 | if (data->length < 4) {
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226 | return NT_STATUS_INVALID_NETWORK_RESPONSE;
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227 | }
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228 |
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229 | command = SVAL(data->data, 0);
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230 |
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231 | switch (command) {
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232 | case NETLOGON_RESPONSE_FROM_PDC:
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233 | ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
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234 | iconv_convenience,
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235 | &response->data.get_pdc,
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236 | (ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
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237 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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238 | status = ndr_map_error2ntstatus(ndr_err);
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239 | DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
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240 | (int)data->length, nt_errstr(status)));
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241 | if (DEBUGLVL(10)) {
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242 | file_save("netlogon.dat", data->data, data->length);
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243 | }
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244 | return status;
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245 | }
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246 | status = NT_STATUS_OK;
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247 | response->response_type = NETLOGON_GET_PDC;
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248 | break;
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249 | case LOGON_SAM_LOGON_RESPONSE:
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250 | case LOGON_SAM_LOGON_PAUSE_RESPONSE:
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251 | case LOGON_SAM_LOGON_USER_UNKNOWN:
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252 | case LOGON_SAM_LOGON_RESPONSE_EX:
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253 | case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
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254 | case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
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255 | status = pull_netlogon_samlogon_response(
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256 | data, mem_ctx, iconv_convenience,
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257 | &response->data.samlogon);
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258 | response->response_type = NETLOGON_SAMLOGON;
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259 | break;
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260 |
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261 | /* These levels are queries, not responses */
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262 | case LOGON_PRIMARY_QUERY:
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263 | case NETLOGON_ANNOUNCE_UAS:
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264 | case LOGON_SAM_LOGON_REQUEST:
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265 | status = NT_STATUS_INVALID_NETWORK_RESPONSE;
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266 | }
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267 |
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268 | return status;
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269 |
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270 | }
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