source/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.domain_name
  49                 [sizeof(state->request.domain_name)-1] = '\0';
  50
  51         DEBUG(3, ("[%5lu]: dsgetdcname for %s\n", (unsigned long)state->pid,
  52                   state->request.domain_name));
  53
  54         sendto_child(state, locator_child());
  55 }
  56
  57 static enum winbindd_result dual_dsgetdcname(struct winbindd_domain *domain,
  58                                              struct winbindd_cli_state *state)
  59 {
  60         NTSTATUS result;
  61         struct netr_DsRGetDCNameInfo *info = NULL;
  62         const char *dc = NULL;
  63
  64         state->request.domain_name
  65                 [sizeof(state->request.domain_name)-1] = '\0';
  66
  67         DEBUG(3, ("[%5lu]: dsgetdcname for %s\n", (unsigned long)state->pid,
  68                   state->request.domain_name));
  69
  70         result = dsgetdcname(state->mem_ctx, state->request.domain_name,
  71                              NULL, NULL, state->request.flags, &info);
  72
  73         if (!NT_STATUS_IS_OK(result)) {
  74                 return WINBINDD_ERROR;
  75         }
  76
  77         if (info->dc_address) {
  78                 dc = info->dc_address;
  79                 if ((dc[0] == '\\') && (dc[1] == '\\')) {
  80                         dc += 2;
  81                 }
  82         }
  83
  84         if ((!dc || !is_ipaddress_v4(dc)) && info->dc_unc) {
  85                 dc = info->dc_unc;
  86         }
  87
  88         if (!dc || !*dc) {
  89                 return WINBINDD_ERROR;
  90         }
  91
  92         fstrcpy(state->response.data.dc_name, dc);
  93
  94         return WINBINDD_OK;
  95 }
  96
  97 static void ndr_child_get_dc_info_comapt_ds(struct winbindd_domain *domain,
  98                                             struct winbindd_cli_state *state,
  99                                             struct winbind_get_dc_info *r)
 100 {
 101         NTSTATUS result;
 102         struct DS_DOMAIN_CONTROLLER_INFO *info = NULL;
 103         const char *dc = NULL;
 104
 105         DEBUG(3, ("dsgetdcname for '%s'\n", r->in.domain_name));
 106
 107         result = dsgetdcname(state->mem_ctx, r->in.domain_name,
 108                              NULL, NULL, r->in.params.flags, &info);
 109         if (!NT_STATUS_IS_OK(result)) {
 110                 DEBUG(1, ("dsgetdcname failed: %s\n", nt_errstr(result)));
 111                 r->out.result = WINBIND_STATUS_FOOBAR;
 112                 return;
 113         }
 114
 115         if (info->domain_controller_address) {
 116                 dc = info->domain_controller_address;
 117                 if ((dc[0] == '\\') && (dc[1] == '\\')) {
 118                         dc += 2;
 119                 }
 120         }
 121
 122         if ((!dc || !is_ipaddress_v4(dc)) && info->domain_controller_name) {
 123                 dc = info->domain_controller_name;
 124         }
 125
 126         if (!dc || !*dc) {
 127                 TALLOC_FREE(info);
 128                 DEBUG(1, ("DsGetDcName failed: no dc name\n"));
 129                 r->out.result = WINBIND_STATUS_FOOBAR;
 130                 return;
 131         }
 132
 133         r->out.dc_info->name = talloc_strdup(r, dc);
 134         TALLOC_FREE(info);
 135         if (!r->out.dc_info->name) {
 136                 r->out.result = WINBIND_STATUS_NO_MEMORY;
 137                 return;
 138         }
 139         r->out.result = WINBIND_STATUS_OK;
 140 }
 141
 142 void winbindd_ndr_locator_child_get_dc_info(struct winbindd_domain *domain,
 143                                             struct winbindd_cli_state *state)
 144 {
 145         struct winbind_get_dc_info *r;
 146
 147         r = talloc_get_type_abort(state->c.ndr.r,
 148                                   struct winbind_get_dc_info);
 149
 150         switch (*r->in.level) {
 151         case WINBIND_DC_INFO_LEVEL_COMPAT_NT4:
 152                 r->out.result = WINBIND_STATUS_INVALID_LEVEL;
 153                 return;
 154
 155         case WINBIND_DC_INFO_LEVEL_COMPAT_DS:
 156                 ndr_child_get_dc_info_comapt_ds(domain, state, r);
 157                 return;
 158         }
 159
 160         r->out.result = WINBIND_STATUS_UNKNOWN_LEVEL;
 161         return;
 162 }
 163
 164 static const struct winbindd_child_dispatch_table locator_dispatch_table[] = {
 165         {
 166                 .name           = "DSGETDCNAME",
 167                 .struct_cmd     = WINBINDD_DSGETDCNAME,
 168                 .struct_fn      = dual_dsgetdcname,
 169         },{
 170                 .name           = "NDR_WINBIND_GET_DC_INFO",
 171                 .ndr_opnum      = NDR_WINBIND_GET_DC_INFO,
 172                 .ndr_fn         = winbindd_ndr_locator_child_get_dc_info,
 173         },{
 174                 .name           = NULL,
 175         }
 176 };