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/*
Unix SMB/CIFS implementation.
SMB2 client notify calls
Copyright (C) Stefan Metzmacher 2006
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 "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "libcli/smb2/smb2.h"
#include "libcli/smb2/smb2_calls.h"
/*
send a notify request
*/
struct smb2_request *smb2_notify_send(struct smb2_tree *tree, struct smb2_notify *io)
{
struct smb2_request *req;
uint32_t old_timeout;
req = smb2_request_init_tree(tree, SMB2_OP_NOTIFY, 0x20, false, 0);
if (req == NULL) return NULL;
SSVAL(req->out.hdr, SMB2_HDR_CREDIT, 0x0030);
SSVAL(req->out.body, 0x02, io->in.recursive);
SIVAL(req->out.body, 0x04, io->in.buffer_size);
smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
SIVAL(req->out.body, 0x18, io->in.completion_filter);
SIVAL(req->out.body, 0x1C, io->in.unknown);
old_timeout = req->transport->options.request_timeout;
req->transport->options.request_timeout = 0;
smb2_transport_send(req);
req->transport->options.request_timeout = old_timeout;
return req;
}
/*
recv a notify reply
*/
NTSTATUS smb2_notify_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
struct smb2_notify *io)
{
NTSTATUS status;
DATA_BLOB blob;
uint32_t ofs, i;
if (!smb2_request_receive(req) ||
!smb2_request_is_ok(req)) {
return smb2_request_destroy(req);
}
SMB2_CHECK_PACKET_RECV(req, 0x08, true);
status = smb2_pull_o16s32_blob(&req->in, mem_ctx, req->in.body+0x02, &blob);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
io->out.changes = NULL;
io->out.num_changes = 0;
/* count them */
for (ofs=0; blob.length - ofs > 12; ) {
uint32_t next = IVAL(blob.data, ofs);
io->out.num_changes++;
if (next == 0 || (ofs + next) >= blob.length) break;
ofs += next;
}
/* allocate array */
io->out.changes = talloc_array(mem_ctx, struct notify_changes, io->out.num_changes);
if (!io->out.changes) {
return NT_STATUS_NO_MEMORY;
}
for (i=ofs=0; i<io->out.num_changes; i++) {
io->out.changes[i].action = IVAL(blob.data, ofs+4);
smbcli_blob_pull_string(NULL, mem_ctx, &blob,
&io->out.changes[i].name,
ofs+8, ofs+12, STR_UNICODE);
ofs += IVAL(blob.data, ofs);
}
return smb2_request_destroy(req);
}
/*
sync notify request
*/
NTSTATUS smb2_notify(struct smb2_tree *tree, TALLOC_CTX *mem_ctx,
struct smb2_notify *io)
{
struct smb2_request *req = smb2_notify_send(tree, io);
return smb2_notify_recv(req, mem_ctx, io);
}
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