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https://github.com/samba-team/samba.git
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62800d6213
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/*
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Unix SMB/CIFS implementation.
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client change notify operations
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Copyright (C) Andrew Tridgell 2003
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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 <tevent.h>
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#include "libcli/raw/libcliraw.h"
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#include "libcli/raw/raw_proto.h"
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/****************************************************************************
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change notify (async send)
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****************************************************************************/
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_PUBLIC_ struct smbcli_request *smb_raw_changenotify_send(struct smbcli_tree *tree, union smb_notify *parms)
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{
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struct smb_nttrans nt;
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uint8_t setup[8];
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if (parms->nttrans.level != RAW_NOTIFY_NTTRANS) {
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return NULL;
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}
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nt.in.max_setup = 0;
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nt.in.max_param = parms->nttrans.in.buffer_size;
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nt.in.max_data = 0;
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nt.in.setup_count = 4;
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nt.in.setup = setup;
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SIVAL(setup, 0, parms->nttrans.in.completion_filter);
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SSVAL(setup, 4, parms->nttrans.in.file.fnum);
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SSVAL(setup, 6, parms->nttrans.in.recursive);
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nt.in.function = NT_TRANSACT_NOTIFY_CHANGE;
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nt.in.params = data_blob(NULL, 0);
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nt.in.data = data_blob(NULL, 0);
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return smb_raw_nttrans_send(tree, &nt);
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}
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/****************************************************************************
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change notify (async recv)
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****************************************************************************/
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_PUBLIC_ NTSTATUS smb_raw_changenotify_recv(struct smbcli_request *req,
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TALLOC_CTX *mem_ctx, union smb_notify *parms)
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{
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struct smb_nttrans nt;
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NTSTATUS status;
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uint32_t ofs, i;
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struct smbcli_session *session = req?req->session:NULL;
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if (parms->nttrans.level != RAW_NOTIFY_NTTRANS) {
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return NT_STATUS_INVALID_LEVEL;
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}
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status = smb_raw_nttrans_recv(req, mem_ctx, &nt);
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if (!NT_STATUS_IS_OK(status)) {
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return status;
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}
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parms->nttrans.out.changes = NULL;
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parms->nttrans.out.num_changes = 0;
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/* count them */
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for (ofs=0; nt.out.params.length - ofs > 12; ) {
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uint32_t next = IVAL(nt.out.params.data, ofs);
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if (next % 4 != 0)
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return NT_STATUS_INVALID_NETWORK_RESPONSE;
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parms->nttrans.out.num_changes++;
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if (next == 0 ||
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ofs + next >= nt.out.params.length) break;
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ofs += next;
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}
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/* allocate array */
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parms->nttrans.out.changes = talloc_array(mem_ctx, struct notify_changes, parms->nttrans.out.num_changes);
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if (!parms->nttrans.out.changes) {
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return NT_STATUS_NO_MEMORY;
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}
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for (i=ofs=0; i<parms->nttrans.out.num_changes; i++) {
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parms->nttrans.out.changes[i].action = IVAL(nt.out.params.data, ofs+4);
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smbcli_blob_pull_string(session, mem_ctx, &nt.out.params,
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&parms->nttrans.out.changes[i].name,
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ofs+8, ofs+12, STR_UNICODE);
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ofs += IVAL(nt.out.params.data, ofs);
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}
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return NT_STATUS_OK;
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}
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/****************************************************************************
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Send a NT Cancel request - used to hurry along a pending request. Usually
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used to cancel a pending change notify request
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note that this request does not expect a response!
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****************************************************************************/
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NTSTATUS smb_raw_ntcancel(struct smbcli_request *oldreq)
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{
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bool ok;
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if (oldreq->subreqs[0] == NULL) {
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return NT_STATUS_OK;
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}
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ok = tevent_req_cancel(oldreq->subreqs[0]);
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if (!ok) {
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return NT_STATUS_INTERNAL_ERROR;
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}
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return NT_STATUS_OK;
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}
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