source3/winbindd/winbindd_locator.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - miscellaneous other functions
   5
   6    Copyright (C) Tim Potter      2000
   7    Copyright (C) Andrew Bartlett 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "winbindd.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_WINBIND
  28
  29
  30 static const struct winbindd_child_dispatch_table locator_dispatch_table[];
  31
  32 static struct winbindd_child static_locator_child;
  33
  34 void init_locator_child(void)
  35 {
  36         setup_child(&static_locator_child,
  37                     locator_dispatch_table,
  38                     "log.winbindd", "locator");
  39 }
  40
  41 struct winbindd_child *locator_child(void)
  42 {
  43         return &static_locator_child;
  44 }
  45
  46 void winbindd_dsgetdcname(struct winbindd_cli_state *state)
  47 {
  48         state->request.data.dsgetdcname.domain_name
  49                 [sizeof(state->request.data.dsgetdcname.domain_name)-1] = '\0';
  50         state->request.data.dsgetdcname.site_name
  51                 [sizeof(state->request.data.dsgetdcname.site_name)-1] = '\0';
  52         state->request.data.dsgetdcname.domain_guid
  53                 [sizeof(state->request.data.dsgetdcname.domain_guid)-1] = '\0';
  54
  55         DEBUG(3, ("[%5lu]: dsgetdcname for %s\n", (unsigned long)state->pid,
  56                   state->request.data.dsgetdcname.domain_name));
  57
  58         sendto_child(state, locator_child());
  59 }
  60
  61 struct wbc_flag_map {
  62         uint32_t wbc_dc_flag;
  63         uint32_t ds_dc_flags;
  64 };
  65
  66 static uint32_t get_dsgetdc_flags(uint32_t wbc_flags)
  67 {
  68         struct wbc_flag_map lookup_dc_flags[] = {
  69                 { WBC_LOOKUP_DC_FORCE_REDISCOVERY, DS_FORCE_REDISCOVERY },
  70                 { WBC_LOOKUP_DC_DS_REQUIRED, DS_DIRECTORY_SERVICE_REQUIRED },
  71                 { WBC_LOOKUP_DC_DS_PREFERRED, DS_DIRECTORY_SERVICE_PREFERRED},
  72                 { WBC_LOOKUP_DC_GC_SERVER_REQUIRED, DS_GC_SERVER_REQUIRED },
  73                 { WBC_LOOKUP_DC_PDC_REQUIRED,  DS_PDC_REQUIRED},
  74                 { WBC_LOOKUP_DC_BACKGROUND_ONLY, DS_BACKGROUND_ONLY  },
  75                 { WBC_LOOKUP_DC_IP_REQUIRED, DS_IP_REQUIRED },
  76                 { WBC_LOOKUP_DC_KDC_REQUIRED, DS_KDC_REQUIRED },
  77                 { WBC_LOOKUP_DC_TIMESERV_REQUIRED, DS_TIMESERV_REQUIRED },
  78                 { WBC_LOOKUP_DC_WRITABLE_REQUIRED,  DS_WRITABLE_REQUIRED },
  79                 { WBC_LOOKUP_DC_GOOD_TIMESERV_PREFERRED, DS_GOOD_TIMESERV_PREFERRED },
  80                 { WBC_LOOKUP_DC_AVOID_SELF, DS_AVOID_SELF },
  81                 { WBC_LOOKUP_DC_ONLY_LDAP_NEEDED, DS_ONLY_LDAP_NEEDED },
  82                 { WBC_LOOKUP_DC_IS_FLAT_NAME, DS_IS_FLAT_NAME },
  83                 { WBC_LOOKUP_DC_IS_DNS_NAME, DS_IS_DNS_NAME },
  84                 { WBC_LOOKUP_DC_TRY_NEXTCLOSEST_SITE, DS_TRY_NEXTCLOSEST_SITE },
  85                 { WBC_LOOKUP_DC_DS_6_REQUIRED, DS_DIRECTORY_SERVICE_6_REQUIRED },
  86                 { WBC_LOOKUP_DC_RETURN_DNS_NAME, DS_RETURN_DNS_NAME },
  87                 { WBC_LOOKUP_DC_RETURN_FLAT_NAME, DS_RETURN_FLAT_NAME }
  88         };
  89         uint32_t ds_flags = 0;
  90         int i = 0 ;
  91         int num_entries = sizeof(lookup_dc_flags) / sizeof(struct wbc_flag_map);
  92
  93         for (i=0; i<num_entries; i++) {
  94                 if (wbc_flags & lookup_dc_flags[i].wbc_dc_flag)
  95                         ds_flags |= lookup_dc_flags[i].ds_dc_flags;
  96         }
  97
  98         return ds_flags;
  99 }
 100
 101 static enum winbindd_result dual_dsgetdcname(struct winbindd_domain *domain,
 102                                              struct winbindd_cli_state *state)
 103 {
 104         NTSTATUS result;
 105         struct netr_DsRGetDCNameInfo *info = NULL;
 106         uint32_t ds_flags = 0;
 107         struct GUID guid, *guid_ptr = NULL;
 108         const char *guid_str = NULL;
 109
 110         state->request.data.dsgetdcname.domain_name
 111                 [sizeof(state->request.data.dsgetdcname.domain_name)-1] = '\0';
 112         state->request.data.dsgetdcname.site_name
 113                 [sizeof(state->request.data.dsgetdcname.site_name)-1] = '\0';
 114         state->request.data.dsgetdcname.domain_guid
 115                 [sizeof(state->request.data.dsgetdcname.domain_guid)-1] = '\0';
 116
 117         DEBUG(3, ("[%5lu]: dsgetdcname for %s\n", (unsigned long)state->pid,
 118                   state->request.data.dsgetdcname.domain_name));
 119
 120         ds_flags = get_dsgetdc_flags(state->request.flags);
 121
 122         result = GUID_from_string(state->request.data.dsgetdcname.domain_guid,
 123                                   &guid);
 124         if (NT_STATUS_IS_OK(result) && !GUID_all_zero(&guid)) {
 125                 guid_ptr = &guid;
 126         }
 127
 128         result = dsgetdcname(state->mem_ctx,
 129                              winbind_messaging_context(),
 130                              state->request.data.dsgetdcname.domain_name,
 131                              guid_ptr,
 132                              state->request.data.dsgetdcname.site_name,
 133                              ds_flags,
 134                              &info);
 135
 136         if (!NT_STATUS_IS_OK(result)) {
 137                 return WINBINDD_ERROR;
 138         }
 139
 140         guid_str = GUID_string(state->mem_ctx, &info->domain_guid);
 141         if (!guid_str) {
 142                 return WINBINDD_ERROR;
 143         }
 144
 145         fstrcpy(state->response.data.dsgetdcname.dc_unc, info->dc_unc);
 146         fstrcpy(state->response.data.dsgetdcname.dc_address, info->dc_address);
 147         state->response.data.dsgetdcname.dc_address_type = info->dc_address_type;
 148         fstrcpy(state->response.data.dsgetdcname.domain_guid, guid_str);
 149         fstrcpy(state->response.data.dsgetdcname.domain_name, info->domain_name);
 150         fstrcpy(state->response.data.dsgetdcname.forest_name, info->forest_name);
 151         state->response.data.dsgetdcname.dc_flags = info->dc_flags;
 152         fstrcpy(state->response.data.dsgetdcname.dc_site_name, info->dc_site_name);
 153         fstrcpy(state->response.data.dsgetdcname.client_site_name, info->client_site_name);
 154
 155         return WINBINDD_OK;
 156 }
 157
 158 static const struct winbindd_child_dispatch_table locator_dispatch_table[] = {
 159         {
 160                 .name           = "DSGETDCNAME",
 161                 .struct_cmd     = WINBINDD_DSGETDCNAME,
 162                 .struct_fn      = dual_dsgetdcname,
 163         },{
 164                 .name           = NULL,
 165         }
 166 };