1 | /*
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2 | Unix SMB/CIFS implementation.
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3 | async implementation of WINBINDD_DSGETDCNAME
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4 | Copyright (C) Volker Lendecke 2009
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5 |
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6 | This program is free software; you can redistribute it and/or modify
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7 | it under the terms of the GNU General Public License as published by
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8 | the Free Software Foundation; either version 3 of the License, or
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9 | (at your option) any later version.
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10 |
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11 | This program is distributed in the hope that it will be useful,
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | GNU General Public License for more details.
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15 |
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16 | You should have received a copy of the GNU General Public License
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17 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 | */
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19 |
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20 | #include "includes.h"
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21 | #include "winbindd.h"
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22 | #include "librpc/gen_ndr/cli_wbint.h"
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23 |
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24 | struct winbindd_dsgetdcname_state {
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25 | struct GUID guid;
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26 | struct netr_DsRGetDCNameInfo *dc_info;
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27 | };
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28 |
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29 | static uint32_t get_dsgetdc_flags(uint32_t wbc_flags);
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30 | static void winbindd_dsgetdcname_done(struct tevent_req *subreq);
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31 |
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32 | struct tevent_req *winbindd_dsgetdcname_send(TALLOC_CTX *mem_ctx,
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33 | struct tevent_context *ev,
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34 | struct winbindd_cli_state *cli,
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35 | struct winbindd_request *request)
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36 | {
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37 | struct tevent_req *req, *subreq;
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38 | struct winbindd_child *child;
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39 | struct winbindd_dsgetdcname_state *state;
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40 | struct GUID *guid_ptr = NULL;
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41 | uint32_t ds_flags = 0;
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42 | NTSTATUS status;
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43 |
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44 | req = tevent_req_create(mem_ctx, &state,
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45 | struct winbindd_dsgetdcname_state);
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46 | if (req == NULL) {
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47 | return NULL;
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48 | }
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49 |
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50 | request->data.dsgetdcname.domain_name
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51 | [sizeof(request->data.dsgetdcname.domain_name)-1] = '\0';
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52 | request->data.dsgetdcname.site_name
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53 | [sizeof(request->data.dsgetdcname.site_name)-1] = '\0';
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54 | request->data.dsgetdcname.domain_guid
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55 | [sizeof(request->data.dsgetdcname.domain_guid)-1] = '\0';
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56 |
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57 | DEBUG(3, ("[%5lu]: dsgetdcname for %s\n", (unsigned long)cli->pid,
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58 | request->data.dsgetdcname.domain_name));
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59 |
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60 | ds_flags = get_dsgetdc_flags(request->flags);
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61 |
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62 | status = GUID_from_string(request->data.dsgetdcname.domain_guid,
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63 | &state->guid);
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64 | if (NT_STATUS_IS_OK(status) && !GUID_all_zero(&state->guid)) {
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65 | guid_ptr = &state->guid;
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66 | }
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67 |
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68 | child = locator_child();
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69 |
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70 | subreq = rpccli_wbint_DsGetDcName_send(
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71 | state, ev, child->rpccli,
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72 | request->data.dsgetdcname.domain_name, guid_ptr,
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73 | request->data.dsgetdcname.site_name,
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74 | ds_flags, &state->dc_info);
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75 | if (tevent_req_nomem(subreq, req)) {
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76 | return tevent_req_post(req, ev);
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77 | }
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78 | tevent_req_set_callback(subreq, winbindd_dsgetdcname_done, req);
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79 | return req;
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80 | }
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81 |
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82 | static void winbindd_dsgetdcname_done(struct tevent_req *subreq)
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83 | {
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84 | struct tevent_req *req = tevent_req_callback_data(
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85 | subreq, struct tevent_req);
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86 | struct winbindd_dsgetdcname_state *state = tevent_req_data(
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87 | req, struct winbindd_dsgetdcname_state);
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88 | NTSTATUS status, result;
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89 |
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90 | status = rpccli_wbint_DsGetDcName_recv(subreq, state, &result);
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91 | TALLOC_FREE(subreq);
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92 | if (!NT_STATUS_IS_OK(status)) {
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93 | tevent_req_nterror(req, status);
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94 | return;
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95 | }
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96 | if (!NT_STATUS_IS_OK(result)) {
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97 | tevent_req_nterror(req, result);
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98 | return;
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99 | }
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100 | tevent_req_done(req);
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101 | }
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102 |
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103 | NTSTATUS winbindd_dsgetdcname_recv(struct tevent_req *req,
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104 | struct winbindd_response *response)
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105 | {
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106 | struct winbindd_dsgetdcname_state *state = tevent_req_data(
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107 | req, struct winbindd_dsgetdcname_state);
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108 | char *guid_str;
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109 | NTSTATUS status;
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110 |
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111 | if (tevent_req_is_nterror(req, &status)) {
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112 | DEBUG(5, ("dsgetdcname failed: %s\n", nt_errstr(status)));
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113 | return status;
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114 | }
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115 |
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116 | guid_str = GUID_string(talloc_tos(), &state->dc_info->domain_guid);
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117 | if (guid_str == NULL) {
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118 | return NT_STATUS_NO_MEMORY;
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119 | }
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120 |
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121 | fstrcpy(response->data.dsgetdcname.dc_unc,
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122 | state->dc_info->dc_unc);
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123 | fstrcpy(response->data.dsgetdcname.dc_address,
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124 | state->dc_info->dc_address);
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125 | response->data.dsgetdcname.dc_address_type =
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126 | state->dc_info->dc_address_type;
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127 | fstrcpy(response->data.dsgetdcname.domain_guid, guid_str);
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128 | TALLOC_FREE(guid_str);
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129 | fstrcpy(response->data.dsgetdcname.domain_name,
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130 | state->dc_info->domain_name);
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131 | fstrcpy(response->data.dsgetdcname.forest_name,
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132 | state->dc_info->forest_name);
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133 | response->data.dsgetdcname.dc_flags = state->dc_info->dc_flags;
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134 | fstrcpy(response->data.dsgetdcname.dc_site_name,
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135 | state->dc_info->dc_site_name);
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136 | fstrcpy(response->data.dsgetdcname.client_site_name,
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137 | state->dc_info->client_site_name);
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138 |
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139 | return NT_STATUS_OK;
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140 | }
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141 |
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142 | static uint32_t get_dsgetdc_flags(uint32_t wbc_flags)
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143 | {
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144 | struct wbc_flag_map {
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145 | uint32_t wbc_dc_flag;
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146 | uint32_t ds_dc_flags;
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147 | } lookup_dc_flags[] = {
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148 | { WBC_LOOKUP_DC_FORCE_REDISCOVERY,
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149 | DS_FORCE_REDISCOVERY },
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150 | { WBC_LOOKUP_DC_DS_REQUIRED,
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151 | DS_DIRECTORY_SERVICE_REQUIRED },
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152 | { WBC_LOOKUP_DC_DS_PREFERRED,
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153 | DS_DIRECTORY_SERVICE_PREFERRED},
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154 | { WBC_LOOKUP_DC_GC_SERVER_REQUIRED,
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155 | DS_GC_SERVER_REQUIRED },
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156 | { WBC_LOOKUP_DC_PDC_REQUIRED,
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157 | DS_PDC_REQUIRED},
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158 | { WBC_LOOKUP_DC_BACKGROUND_ONLY,
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159 | DS_BACKGROUND_ONLY },
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160 | { WBC_LOOKUP_DC_IP_REQUIRED,
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161 | DS_IP_REQUIRED },
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162 | { WBC_LOOKUP_DC_KDC_REQUIRED,
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163 | DS_KDC_REQUIRED },
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164 | { WBC_LOOKUP_DC_TIMESERV_REQUIRED,
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165 | DS_TIMESERV_REQUIRED },
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166 | { WBC_LOOKUP_DC_WRITABLE_REQUIRED,
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167 | DS_WRITABLE_REQUIRED },
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168 | { WBC_LOOKUP_DC_GOOD_TIMESERV_PREFERRED,
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169 | DS_GOOD_TIMESERV_PREFERRED },
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170 | { WBC_LOOKUP_DC_AVOID_SELF,
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171 | DS_AVOID_SELF },
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172 | { WBC_LOOKUP_DC_ONLY_LDAP_NEEDED,
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173 | DS_ONLY_LDAP_NEEDED },
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174 | { WBC_LOOKUP_DC_IS_FLAT_NAME,
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175 | DS_IS_FLAT_NAME },
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176 | { WBC_LOOKUP_DC_IS_DNS_NAME,
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177 | DS_IS_DNS_NAME },
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178 | { WBC_LOOKUP_DC_TRY_NEXTCLOSEST_SITE,
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179 | DS_TRY_NEXTCLOSEST_SITE },
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180 | { WBC_LOOKUP_DC_DS_6_REQUIRED,
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181 | DS_DIRECTORY_SERVICE_6_REQUIRED },
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182 | { WBC_LOOKUP_DC_RETURN_DNS_NAME,
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183 | DS_RETURN_DNS_NAME },
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184 | { WBC_LOOKUP_DC_RETURN_FLAT_NAME,
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185 | DS_RETURN_FLAT_NAME }
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186 | };
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187 |
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188 | uint32_t ds_flags = 0;
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189 | int i = 0 ;
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190 |
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191 | for (i=0; i<ARRAY_SIZE(lookup_dc_flags); i++) {
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192 | if (wbc_flags & lookup_dc_flags[i].wbc_dc_flag) {
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193 | ds_flags |= lookup_dc_flags[i].ds_dc_flags;
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194 | }
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195 | }
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196 |
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197 | return ds_flags;
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198 | }
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