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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_DSGETDCNAME
Copyright (C) Volker Lendecke 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "util/debug.h"
#include "winbindd.h"
#include "librpc/gen_ndr/ndr_winbind_c.h"
#include "lib/util/string_wrappers.h"
struct winbindd_dsgetdcname_state {
struct GUID guid;
struct netr_DsRGetDCNameInfo *dc_info;
};
static uint32_t get_dsgetdc_flags(uint32_t wbc_flags);
static void winbindd_dsgetdcname_done(struct tevent_req *subreq);
struct tevent_req *winbindd_dsgetdcname_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_cli_state *cli,
struct winbindd_request *request)
{
struct tevent_req *req, *subreq;
struct dcerpc_binding_handle *child_binding_handle = NULL;
struct winbindd_dsgetdcname_state *state;
struct GUID *guid_ptr = NULL;
uint32_t ds_flags = 0;
NTSTATUS status;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_dsgetdcname_state);
if (req == NULL) {
return NULL;
}
D_NOTICE("[%s (%u)] Winbind external command DSGETDCNAME start.\n",
cli->client_name,
(unsigned int)cli->pid);
request->data.dsgetdcname.domain_name
[sizeof(request->data.dsgetdcname.domain_name)-1] = '\0';
request->data.dsgetdcname.site_name
[sizeof(request->data.dsgetdcname.site_name)-1] = '\0';
request->data.dsgetdcname.domain_guid
[sizeof(request->data.dsgetdcname.domain_guid)-1] = '\0';
D_NOTICE("Calling DsGetDcName for domain '%s'.\n",
request->data.dsgetdcname.domain_name);
ds_flags = get_dsgetdc_flags(request->data.dsgetdcname.flags);
status = GUID_from_string(request->data.dsgetdcname.domain_guid,
&state->guid);
if (NT_STATUS_IS_OK(status) && !GUID_all_zero(&state->guid)) {
guid_ptr = &state->guid;
}
child_binding_handle = locator_child_handle();
subreq = dcerpc_wbint_DsGetDcName_send(
state, ev, child_binding_handle,
request->data.dsgetdcname.domain_name, guid_ptr,
request->data.dsgetdcname.site_name,
ds_flags, &state->dc_info);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_dsgetdcname_done, req);
return req;
}
static void winbindd_dsgetdcname_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_dsgetdcname_state *state = tevent_req_data(
req, struct winbindd_dsgetdcname_state);
NTSTATUS status, result;
status = dcerpc_wbint_DsGetDcName_recv(subreq, state, &result);
TALLOC_FREE(subreq);
if (any_nt_status_not_ok(status, result, &status)) {
tevent_req_nterror(req, status);
return;
}
tevent_req_done(req);
}
NTSTATUS winbindd_dsgetdcname_recv(struct tevent_req *req,
struct winbindd_response *response)
{
struct winbindd_dsgetdcname_state *state = tevent_req_data(
req, struct winbindd_dsgetdcname_state);
struct GUID_txt_buf guid_str_buf;
char *guid_str;
NTSTATUS status;
D_NOTICE("Winbind external command DSGETDCNAME end.\n");
if (tevent_req_is_nterror(req, &status)) {
D_WARNING("Failed with: %s\n", nt_errstr(status));
return status;
}
fstrcpy(response->data.dsgetdcname.dc_unc,
state->dc_info->dc_unc);
fstrcpy(response->data.dsgetdcname.dc_address,
state->dc_info->dc_address);
response->data.dsgetdcname.dc_address_type =
state->dc_info->dc_address_type;
guid_str = GUID_buf_string(&state->dc_info->domain_guid,
&guid_str_buf);
fstrcpy(response->data.dsgetdcname.domain_guid, guid_str);
fstrcpy(response->data.dsgetdcname.domain_name,
state->dc_info->domain_name);
fstrcpy(response->data.dsgetdcname.forest_name,
state->dc_info->forest_name);
response->data.dsgetdcname.dc_flags = state->dc_info->dc_flags;
fstrcpy(response->data.dsgetdcname.dc_site_name,
state->dc_info->dc_site_name);
fstrcpy(response->data.dsgetdcname.client_site_name,
state->dc_info->client_site_name);
return NT_STATUS_OK;
}
static uint32_t get_dsgetdc_flags(uint32_t wbc_flags)
{
struct wbc_flag_map {
uint32_t wbc_dc_flag;
uint32_t ds_dc_flags;
} lookup_dc_flags[] = {
{ WBC_LOOKUP_DC_FORCE_REDISCOVERY,
DS_FORCE_REDISCOVERY },
{ WBC_LOOKUP_DC_DS_REQUIRED,
DS_DIRECTORY_SERVICE_REQUIRED },
{ WBC_LOOKUP_DC_DS_PREFERRED,
DS_DIRECTORY_SERVICE_PREFERRED},
{ WBC_LOOKUP_DC_GC_SERVER_REQUIRED,
DS_GC_SERVER_REQUIRED },
{ WBC_LOOKUP_DC_PDC_REQUIRED,
DS_PDC_REQUIRED},
{ WBC_LOOKUP_DC_BACKGROUND_ONLY,
DS_BACKGROUND_ONLY },
{ WBC_LOOKUP_DC_IP_REQUIRED,
DS_IP_REQUIRED },
{ WBC_LOOKUP_DC_KDC_REQUIRED,
DS_KDC_REQUIRED },
{ WBC_LOOKUP_DC_TIMESERV_REQUIRED,
DS_TIMESERV_REQUIRED },
{ WBC_LOOKUP_DC_WRITABLE_REQUIRED,
DS_WRITABLE_REQUIRED },
{ WBC_LOOKUP_DC_GOOD_TIMESERV_PREFERRED,
DS_GOOD_TIMESERV_PREFERRED },
{ WBC_LOOKUP_DC_AVOID_SELF,
DS_AVOID_SELF },
{ WBC_LOOKUP_DC_ONLY_LDAP_NEEDED,
DS_ONLY_LDAP_NEEDED },
{ WBC_LOOKUP_DC_IS_FLAT_NAME,
DS_IS_FLAT_NAME },
{ WBC_LOOKUP_DC_IS_DNS_NAME,
DS_IS_DNS_NAME },
{ WBC_LOOKUP_DC_TRY_NEXTCLOSEST_SITE,
DS_TRY_NEXTCLOSEST_SITE },
{ WBC_LOOKUP_DC_DS_6_REQUIRED,
DS_DIRECTORY_SERVICE_6_REQUIRED },
{ WBC_LOOKUP_DC_RETURN_DNS_NAME,
DS_RETURN_DNS_NAME },
{ WBC_LOOKUP_DC_RETURN_FLAT_NAME,
DS_RETURN_FLAT_NAME }
};
uint32_t ds_flags = 0;
size_t i = 0;
for (i=0; i<ARRAY_SIZE(lookup_dc_flags); i++) {
if (wbc_flags & lookup_dc_flags[i].wbc_dc_flag) {
ds_flags |= lookup_dc_flags[i].ds_dc_flags;
}
}
return ds_flags;
}
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