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/*
Unix SMB/CIFS implementation.
Copyright (C) Gregor Beck 2013
Copyright (C) Stefan Metzmacher 2013
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "system/network.h"
#include "lib/util/tevent_ntstatus.h"
#include "smb_common.h"
#include "smbXcli_base.h"
struct smb1cli_close_state {
uint16_t vwv[3];
};
static void smb1cli_close_done(struct tevent_req *subreq);
/**
* Send an asynchronous SMB_COM_CLOSE request.
* <a href="http://msdn.microsoft.com/en-us/library/ee442151.aspx">MS-CIFS 2.2.4.5.1</a>
* @see smb1cli_close_recv(), smb1cli_close()
*
* @param[in] mem_ctx The memory context for the result.
* @param[in] ev The event context to work on.
* @param[in] conn The smb connection.
* @param[in] timeout_msec If positiv a timeout for the request.
* @param[in] pid The process identifier.
* @param[in] tcon The smb tree connect.
* @param[in] session The smb session.
* @param[in] fnum The file id of the file to be closed.
* @param[in] last_modified If not 0 or 0xFFFFFFFF request to set modification time to this number of seconds since January 1, 1970.
*
* @return a tevent_req or NULL.
*/
struct tevent_req *smb1cli_close_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbXcli_conn *conn,
uint32_t timeout_msec,
uint32_t pid,
struct smbXcli_tcon *tcon,
struct smbXcli_session *session,
uint16_t fnum,
uint32_t last_modified)
{
struct tevent_req *req, *subreq;
struct smb1cli_close_state *state;
req = tevent_req_create(mem_ctx, &state, struct smb1cli_close_state);
if (req == NULL) {
return NULL;
}
SSVAL(state->vwv+0, 0, fnum);
SIVALS(state->vwv+1, 0, last_modified);
subreq = smb1cli_req_send(state, ev, conn, SMBclose,
0, 0, /* *_flags */
0, 0, /* *_flags2 */
timeout_msec, pid, tcon, session,
ARRAY_SIZE(state->vwv), state->vwv,
0, NULL);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, smb1cli_close_done, req);
return req;
}
static void smb1cli_close_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct smb1cli_close_state *state = tevent_req_data(
req, struct smb1cli_close_state);
NTSTATUS status;
static const struct smb1cli_req_expected_response expected[] = {
{
.status = NT_STATUS_OK,
.wct = 0x00
},
};
status = smb1cli_req_recv(subreq, state,
NULL, /* recv_iov */
NULL, /* phdr */
NULL, /* wct */
NULL, /* vwv */
NULL, /* pvwv_offset */
NULL, /* num_bytes */
NULL, /* bytes */
NULL, /* pbytes_offset */
NULL, /* inbuf */
expected, ARRAY_SIZE(expected));
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
tevent_req_done(req);
}
/**
* Receive the response to an asynchronous SMB_COM_CLOSE request.
* <a href="http://msdn.microsoft.com/en-us/library/ee441667.aspx">MS-CIFS 2.2.4.5.2</a>
*
* @param req A tevent_req created with smb1cli_close_send()
*
* @return NT_STATUS_OK on success
*/
NTSTATUS smb1cli_close_recv(struct tevent_req *req)
{
return tevent_req_simple_recv_ntstatus(req);
}
/**
* Send an synchronous SMB_COM_CLOSE request.
* <a href="http://msdn.microsoft.com/en-us/library/ee441493.aspx">MS-CIFS 2.2.4.5</a>
* @see smb1cli_close_send(), smb1cli_close_recv()
*
* @param[in] conn The smb connection.
* @param[in] timeout_msec If positiv a timeout for the request.
* @param[in] pid The process identifier.
* @param[in] tcon The smb tree connect.
* @param[in] session The smb session.
* @param[in] fnum The file id of the file to be closed.
* @param[in] last_modified If not 0 or 0xFFFFFFFF request to set modification time to this number of seconds since J
*
* @return NT_STATUS_OK on success.
*/
NTSTATUS smb1cli_close(struct smbXcli_conn *conn,
uint32_t timeout_msec,
uint32_t pid,
struct smbXcli_tcon *tcon,
struct smbXcli_session *session,
uint16_t fnum,
uint32_t last_modified)
{
NTSTATUS status = NT_STATUS_OK;
struct tevent_req *req;
TALLOC_CTX *frame = talloc_stackframe();
struct tevent_context *ev;
if (smbXcli_conn_has_async_calls(conn)) {
/*
* Can't use sync call while an async call is in flight
*/
status = NT_STATUS_INVALID_PARAMETER;
goto done;
}
ev = samba_tevent_context_init(frame);
if (ev == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
req = smb1cli_close_send(frame, ev, conn,
timeout_msec, pid, tcon, session,
fnum, last_modified);
if (req == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
if (!tevent_req_poll_ntstatus(req, ev, &status)) {
goto done;
}
status = smb1cli_close_recv(req);
done:
talloc_free(frame);
return status;
}
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