| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | async implementation of WINBINDD_PING_DC
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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/ndr_wbint_c.h"
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| 23 |
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| 24 | struct winbindd_ping_dc_state {
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| 25 | uint8_t dummy;
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| 26 | };
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| 27 |
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| 28 | static void winbindd_ping_dc_done(struct tevent_req *subreq);
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| 29 |
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| 30 | struct tevent_req *winbindd_ping_dc_send(TALLOC_CTX *mem_ctx,
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| 31 | struct tevent_context *ev,
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| 32 | struct winbindd_cli_state *cli,
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| 33 | struct winbindd_request *request)
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| 34 | {
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| 35 | struct tevent_req *req, *subreq;
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| 36 | struct winbindd_ping_dc_state *state;
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| 37 | struct winbindd_domain *domain;
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| 38 |
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| 39 | req = tevent_req_create(mem_ctx, &state,
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| 40 | struct winbindd_ping_dc_state);
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| 41 | if (req == NULL) {
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| 42 | return NULL;
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| 43 | }
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| 44 |
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| 45 | if (request->domain_name[0] == '\0') {
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| 46 | /* preserve old behavior, when no domain name is given */
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| 47 | domain = find_our_domain();
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| 48 | } else {
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| 49 | domain = find_domain_from_name(request->domain_name);
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| 50 | }
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| 51 | if (domain == NULL) {
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| 52 | tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
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| 53 | return tevent_req_post(req, ev);
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| 54 | }
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| 55 | if (domain->internal) {
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| 56 | /*
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| 57 | * Internal domains are passdb based, we can always
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| 58 | * contact them.
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| 59 | */
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| 60 | tevent_req_done(req);
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| 61 | return tevent_req_post(req, ev);
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| 62 | }
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| 63 |
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| 64 | subreq = dcerpc_wbint_PingDc_send(state, ev, dom_child_handle(domain));
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| 65 | if (tevent_req_nomem(subreq, req)) {
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| 66 | return tevent_req_post(req, ev);
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| 67 | }
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| 68 | tevent_req_set_callback(subreq, winbindd_ping_dc_done, req);
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| 69 | return req;
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| 70 | }
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| 71 |
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| 72 | static void winbindd_ping_dc_done(struct tevent_req *subreq)
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| 73 | {
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| 74 | struct tevent_req *req = tevent_req_callback_data(
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| 75 | subreq, struct tevent_req);
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| 76 | struct winbindd_ping_dc_state *state = tevent_req_data(
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| 77 | req, struct winbindd_ping_dc_state);
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| 78 | NTSTATUS status, result;
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| 79 |
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| 80 | status = dcerpc_wbint_PingDc_recv(subreq, state, &result);
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| 81 | if (any_nt_status_not_ok(status, result, &status)) {
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| 82 | tevent_req_nterror(req, status);
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| 83 | return;
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| 84 | }
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| 85 | tevent_req_done(req);
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| 86 | }
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| 87 |
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| 88 | NTSTATUS winbindd_ping_dc_recv(struct tevent_req *req,
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| 89 | struct winbindd_response *presp)
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| 90 | {
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| 91 | return tevent_req_simple_recv_ntstatus(req);
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| 92 | }
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