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9c2fcb689b
This makes us scale better with many simultaneous winbind requests, some of which might be slow. This implementation breaks offline logons, as the cached credentials are maintained in a child (this needs fixing). So, if the offline logons are active, only allow one DC connection. Probably the offline logon and the scalable file server cases are separate enough so that this patch is useful even with the restriction.
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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async implementation of WINBINDD_PING_DC
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Copyright (C) Volker Lendecke 2009
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "winbindd.h"
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#include "librpc/gen_ndr/ndr_wbint_c.h"
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struct winbindd_ping_dc_state {
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uint8_t dummy;
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};
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static void winbindd_ping_dc_done(struct tevent_req *subreq);
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struct tevent_req *winbindd_ping_dc_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct winbindd_cli_state *cli,
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struct winbindd_request *request)
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{
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struct tevent_req *req, *subreq;
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struct winbindd_ping_dc_state *state;
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struct winbindd_domain *domain;
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req = tevent_req_create(mem_ctx, &state,
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struct winbindd_ping_dc_state);
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if (req == NULL) {
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return NULL;
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}
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if (request->domain_name[0] == '\0') {
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/* preserve old behavior, when no domain name is given */
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domain = find_our_domain();
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} else {
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domain = find_domain_from_name(request->domain_name);
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}
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if (domain == NULL) {
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tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
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return tevent_req_post(req, ev);
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}
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if (domain->internal) {
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/*
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* Internal domains are passdb based, we can always
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* contact them.
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*/
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tevent_req_done(req);
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return tevent_req_post(req, ev);
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}
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subreq = dcerpc_wbint_PingDc_send(state, ev, dom_child_handle(domain));
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, winbindd_ping_dc_done, req);
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return req;
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}
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static void winbindd_ping_dc_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct winbindd_ping_dc_state *state = tevent_req_data(
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req, struct winbindd_ping_dc_state);
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NTSTATUS status, result;
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status = dcerpc_wbint_PingDc_recv(subreq, state, &result);
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if (any_nt_status_not_ok(status, result, &status)) {
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tevent_req_nterror(req, status);
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return;
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}
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tevent_req_done(req);
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}
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NTSTATUS winbindd_ping_dc_recv(struct tevent_req *req,
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struct winbindd_response *presp)
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{
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return tevent_req_simple_recv_ntstatus(req);
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}
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