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8a234cbe15
metze Autobuild-User: Stefan Metzmacher <metze@samba.org> Autobuild-Date: Tue Jul 12 10:53:52 CEST 2011 on sn-devel-104
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB client oplock functions
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Copyright (C) Andrew Tridgell 2001
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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 "../lib/util/tevent_ntstatus.h"
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#include "async_smb.h"
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#include "libsmb/libsmb.h"
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/****************************************************************************
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send an ack for an oplock break request
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****************************************************************************/
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struct cli_oplock_ack_state {
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uint16_t vwv[8];
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};
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static void cli_oplock_ack_done(struct tevent_req *subreq);
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struct tevent_req *cli_oplock_ack_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct cli_state *cli,
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uint16_t fnum, uint8_t level)
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{
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struct tevent_req *req, *subreq;
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struct cli_oplock_ack_state *state;
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req = tevent_req_create(mem_ctx, &state, struct cli_oplock_ack_state);
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if (req == NULL) {
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return NULL;
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}
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SCVAL(state->vwv+0, 0, 0xff);
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SCVAL(state->vwv+0, 1, 0);
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SSVAL(state->vwv+1, 0, 0);
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SSVAL(state->vwv+2, 0, fnum);
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SCVAL(state->vwv+3, 0, LOCKING_ANDX_OPLOCK_RELEASE);
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SCVAL(state->vwv+3, 1, level);
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SIVAL(state->vwv+4, 0, 0); /* timeout */
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SSVAL(state->vwv+6, 0, 0); /* unlockcount */
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SSVAL(state->vwv+7, 0, 0); /* lockcount */
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subreq = cli_smb_send(state, ev, cli, SMBlockingX, 0, 8, state->vwv,
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0, NULL);
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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, cli_oplock_ack_done, req);
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return req;
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}
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static void cli_oplock_ack_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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NTSTATUS status;
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status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
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TALLOC_FREE(subreq);
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if (!NT_STATUS_IS_OK(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 cli_oplock_ack_recv(struct tevent_req *req)
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{
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return tevent_req_simple_recv_ntstatus(req);
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}
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