s3: Fix a winbind race leading to 100% CPU
[Samba.git] / source3 / winbindd / winbindd_check_machine_acct.c
blob279370146a611e27554122b535415ad6bf873ca4
1 /*
2 Unix SMB/CIFS implementation.
3 async implementation of WINBINDD_CHECK_MACHINE_ACCT
4 Copyright (C) Volker Lendecke 2009
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "includes.h"
21 #include "winbindd.h"
22 #include "librpc/gen_ndr/ndr_wbint_c.h"
24 struct winbindd_check_machine_acct_state {
25 uint8_t dummy;
28 static void winbindd_check_machine_acct_done(struct tevent_req *subreq);
30 struct tevent_req *winbindd_check_machine_acct_send(TALLOC_CTX *mem_ctx,
31 struct tevent_context *ev,
32 struct winbindd_cli_state *cli,
33 struct winbindd_request *request)
35 struct tevent_req *req, *subreq;
36 struct winbindd_check_machine_acct_state *state;
37 struct winbindd_domain *domain;
39 req = tevent_req_create(mem_ctx, &state,
40 struct winbindd_check_machine_acct_state);
41 if (req == NULL) {
42 return NULL;
45 if (request->domain_name[0] == '\0') {
46 /* preserve old behavior, when no domain name is given */
47 domain = find_our_domain();
48 } else {
49 domain = find_domain_from_name(request->domain_name);
51 if (domain == NULL) {
52 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
53 return tevent_req_post(req, ev);
55 if (domain->internal) {
57 * Internal domains are passdb based, we can always
58 * contact them.
60 tevent_req_done(req);
61 return tevent_req_post(req, ev);
64 subreq = dcerpc_wbint_CheckMachineAccount_send(state, ev,
65 dom_child_handle(domain));
66 if (tevent_req_nomem(subreq, req)) {
67 return tevent_req_post(req, ev);
69 tevent_req_set_callback(subreq, winbindd_check_machine_acct_done, req);
70 return req;
73 static void winbindd_check_machine_acct_done(struct tevent_req *subreq)
75 struct tevent_req *req = tevent_req_callback_data(
76 subreq, struct tevent_req);
77 struct winbindd_check_machine_acct_state *state = tevent_req_data(
78 req, struct winbindd_check_machine_acct_state);
79 NTSTATUS status, result;
81 status = dcerpc_wbint_CheckMachineAccount_recv(subreq, state, &result);
82 if (any_nt_status_not_ok(status, result, &status)) {
83 tevent_req_nterror(req, status);
84 return;
86 tevent_req_done(req);
89 NTSTATUS winbindd_check_machine_acct_recv(struct tevent_req *req,
90 struct winbindd_response *presp)
92 NTSTATUS status = tevent_req_simple_recv_ntstatus(req);
94 set_auth_errors(presp, status);
95 return status;