| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | async seqnum
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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/cli_wbint.h"
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| 23 |
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| 24 | struct wb_seqnum_state {
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| 25 | uint32_t seqnum;
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| 26 | };
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| 27 |
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| 28 | static void wb_seqnum_done(struct tevent_req *subreq);
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| 29 |
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| 30 | struct tevent_req *wb_seqnum_send(TALLOC_CTX *mem_ctx,
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| 31 | struct tevent_context *ev,
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| 32 | struct winbindd_domain *domain)
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| 33 | {
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| 34 | struct tevent_req *req, *subreq;
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| 35 | struct wb_seqnum_state *state;
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| 36 |
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| 37 | req = tevent_req_create(mem_ctx, &state, struct wb_seqnum_state);
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| 38 | if (req == NULL) {
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| 39 | return NULL;
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| 40 | }
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| 41 | subreq = rpccli_wbint_QuerySequenceNumber_send(
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| 42 | state, ev, domain->child.rpccli, &state->seqnum);
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| 43 | if (tevent_req_nomem(subreq, req)) {
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| 44 | return tevent_req_post(req, ev);
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| 45 | }
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| 46 | tevent_req_set_callback(subreq, wb_seqnum_done, req);
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| 47 | return req;
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| 48 | }
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| 49 |
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| 50 | static void wb_seqnum_done(struct tevent_req *subreq)
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| 51 | {
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| 52 | struct tevent_req *req = tevent_req_callback_data(
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| 53 | subreq, struct tevent_req);
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| 54 | struct wb_seqnum_state *state = tevent_req_data(
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| 55 | req, struct wb_seqnum_state);
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| 56 | NTSTATUS status, result;
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| 57 |
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| 58 | status = rpccli_wbint_QuerySequenceNumber_recv(subreq, state, &result);
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| 59 | TALLOC_FREE(subreq);
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| 60 | if (!NT_STATUS_IS_OK(status)) {
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| 61 | tevent_req_nterror(req, status);
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| 62 | return;
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| 63 | }
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| 64 | if (!NT_STATUS_IS_OK(result)) {
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| 65 | tevent_req_nterror(req, result);
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| 66 | return;
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| 67 | }
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| 68 | tevent_req_done(req);
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| 69 | }
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| 70 |
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| 71 | NTSTATUS wb_seqnum_recv(struct tevent_req *req, uint32_t *seqnum)
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| 72 | {
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| 73 | struct wb_seqnum_state *state = tevent_req_data(
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| 74 | req, struct wb_seqnum_state);
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| 75 | NTSTATUS status;
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| 76 |
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| 77 | if (tevent_req_is_nterror(req, &status)) {
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| 78 | return status;
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| 79 | }
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| 80 | *seqnum = state->seqnum;
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| 81 | return NT_STATUS_OK;
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| 82 | }
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