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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_PING_DC
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 "winbindd.h"
#include "librpc/gen_ndr/ndr_winbind_c.h"
struct winbindd_ping_dc_state {
const char *dcname;
NTSTATUS result;
};
static void winbindd_ping_dc_done(struct tevent_req *subreq);
struct tevent_req *winbindd_ping_dc_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_cli_state *cli,
struct winbindd_request *request)
{
struct tevent_req *req, *subreq;
struct winbindd_ping_dc_state *state;
struct winbindd_domain *domain;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_ping_dc_state);
if (req == NULL) {
return NULL;
}
if (request->domain_name[0] == '\0') {
/* preserve old behavior, when no domain name is given */
domain = find_our_domain();
} else {
domain = find_trust_from_name_noinit(request->domain_name);
}
if (domain == NULL) {
tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
return tevent_req_post(req, ev);
}
if (domain->internal) {
const char *d = lp_dnsdomain();
const char *n = lp_netbios_name();
/*
* Internal domains are passdb based, we can always
* contact them.
*/
if (d != NULL) {
char *h;
h = strlower_talloc(mem_ctx, n);
if (tevent_req_nomem(h, req)) {
return tevent_req_post(req, ev);
}
state->dcname = talloc_asprintf(state, "%s.%s", h, d);
TALLOC_FREE(h);
if (tevent_req_nomem(state->dcname, req)) {
return tevent_req_post(req, ev);
}
} else {
state->dcname = talloc_strdup(state, n);
if (tevent_req_nomem(state->dcname, req)) {
return tevent_req_post(req, ev);
}
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
subreq = dcerpc_wbint_PingDc_send(state, ev, dom_child_handle(domain),
&state->dcname);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_ping_dc_done, req);
return req;
}
static void winbindd_ping_dc_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_ping_dc_state *state = tevent_req_data(
req, struct winbindd_ping_dc_state);
NTSTATUS status, result;
status = dcerpc_wbint_PingDc_recv(subreq, state, &result);
state->result = result;
if (any_nt_status_not_ok(status, result, &status)) {
tevent_req_nterror(req, status);
return;
}
tevent_req_done(req);
}
NTSTATUS winbindd_ping_dc_recv(struct tevent_req *req,
struct winbindd_response *presp)
{
struct winbindd_ping_dc_state *state = tevent_req_data(
req, struct winbindd_ping_dc_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
if (!NT_STATUS_IS_OK(state->result)) {
set_auth_errors(presp, state->result);
}
if (state->dcname) {
presp->extra_data.data = talloc_strdup(presp, state->dcname);
if (presp->extra_data.data == NULL) {
return NT_STATUS_NO_MEMORY;
}
presp->length += strlen((char *)presp->extra_data.data) + 1;
}
tevent_req_received(req);
return NT_STATUS_OK;
}
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