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/*
Unix SMB/CIFS implementation.
client change notify operations
Copyright (C) Andrew Tridgell 2003
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 <tevent.h>
#include "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
/****************************************************************************
change notify (async send)
****************************************************************************/
_PUBLIC_ struct smbcli_request *smb_raw_changenotify_send(struct smbcli_tree *tree, union smb_notify *parms)
{
struct smb_nttrans nt;
uint8_t setup[8];
if (parms->nttrans.level != RAW_NOTIFY_NTTRANS) {
return NULL;
}
nt.in.max_setup = 0;
nt.in.max_param = parms->nttrans.in.buffer_size;
nt.in.max_data = 0;
nt.in.setup_count = 4;
nt.in.setup = setup;
SIVAL(setup, 0, parms->nttrans.in.completion_filter);
SSVAL(setup, 4, parms->nttrans.in.file.fnum);
SSVAL(setup, 6, parms->nttrans.in.recursive);
nt.in.function = NT_TRANSACT_NOTIFY_CHANGE;
nt.in.params = data_blob(NULL, 0);
nt.in.data = data_blob(NULL, 0);
return smb_raw_nttrans_send(tree, &nt);
}
/****************************************************************************
change notify (async recv)
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_changenotify_recv(struct smbcli_request *req,
TALLOC_CTX *mem_ctx, union smb_notify *parms)
{
struct smb_nttrans nt;
NTSTATUS status;
uint32_t ofs, i;
struct smbcli_session *session = req?req->session:NULL;
if (parms->nttrans.level != RAW_NOTIFY_NTTRANS) {
return NT_STATUS_INVALID_LEVEL;
}
status = smb_raw_nttrans_recv(req, mem_ctx, &nt);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
parms->nttrans.out.changes = NULL;
parms->nttrans.out.num_changes = 0;
/* count them */
for (ofs=0; nt.out.params.length - ofs > 12; ) {
uint32_t next = IVAL(nt.out.params.data, ofs);
if (next % 4 != 0)
return NT_STATUS_INVALID_NETWORK_RESPONSE;
parms->nttrans.out.num_changes++;
if (next == 0 ||
ofs + next >= nt.out.params.length) break;
ofs += next;
}
/* allocate array */
parms->nttrans.out.changes = talloc_array(mem_ctx, struct notify_changes, parms->nttrans.out.num_changes);
if (!parms->nttrans.out.changes) {
return NT_STATUS_NO_MEMORY;
}
for (i=ofs=0; i<parms->nttrans.out.num_changes; i++) {
parms->nttrans.out.changes[i].action = IVAL(nt.out.params.data, ofs+4);
smbcli_blob_pull_string(session, mem_ctx, &nt.out.params,
&parms->nttrans.out.changes[i].name,
ofs+8, ofs+12, STR_UNICODE);
ofs += IVAL(nt.out.params.data, ofs);
}
return NT_STATUS_OK;
}
/****************************************************************************
Send a NT Cancel request - used to hurry along a pending request. Usually
used to cancel a pending change notify request
note that this request does not expect a response!
****************************************************************************/
NTSTATUS smb_raw_ntcancel(struct smbcli_request *oldreq)
{
bool ok;
if (oldreq->subreqs[0] == NULL) {
return NT_STATUS_OK;
}
ok = tevent_req_cancel(oldreq->subreqs[0]);
if (!ok) {
return NT_STATUS_INTERNAL_ERROR;
}
return NT_STATUS_OK;
}
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