2 Unix SMB/CIFS implementation.
3 client change notify operations
4 Copyright (C) Andrew Tridgell 2003
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 /****************************************************************************
24 change notify (async send)
25 ****************************************************************************/
26 struct cli_request *smb_raw_changenotify_send(struct cli_tree *tree, struct smb_notify *parms)
28 struct smb_nttrans nt;
32 nt.in.max_param = parms->in.buffer_size;
34 nt.in.setup_count = 4;
36 SIVAL(setup, 0, parms->in.completion_filter);
37 SSVAL(setup, 4, parms->in.fnum);
38 SSVAL(setup, 6, parms->in.recursive);
39 nt.in.function = NT_TRANSACT_NOTIFY_CHANGE;
40 nt.in.params = data_blob(NULL, 0);
41 nt.in.data = data_blob(NULL, 0);
43 return smb_raw_nttrans_send(tree, &nt);
46 /****************************************************************************
47 change notify (async recv)
48 ****************************************************************************/
49 NTSTATUS smb_raw_changenotify_recv(struct cli_request *req,
50 TALLOC_CTX *mem_ctx, struct smb_notify *parms)
52 struct smb_nttrans nt;
55 struct cli_session *session = req?req->session:NULL;
57 status = smb_raw_nttrans_recv(req, mem_ctx, &nt);
58 if (!NT_STATUS_IS_OK(status)) {
62 parms->out.changes = NULL;
63 parms->out.num_changes = 0;
66 for (ofs=0; nt.out.params.length - ofs > 12; ) {
67 uint32_t next = IVAL(nt.out.params.data, ofs);
68 parms->out.num_changes++;
70 ofs + next >= nt.out.params.length) break;
75 parms->out.changes = talloc(mem_ctx, sizeof(parms->out.changes[0]) *
76 parms->out.num_changes);
77 if (!parms->out.changes) {
78 return NT_STATUS_NO_MEMORY;
81 for (i=ofs=0; i<parms->out.num_changes; i++) {
82 parms->out.changes[i].action = IVAL(nt.out.params.data, ofs+4);
83 cli_blob_pull_string(session, mem_ctx, &nt.out.params,
84 &parms->out.changes[i].name,
85 ofs+8, ofs+12, STR_UNICODE);
86 ofs += IVAL(nt.out.params.data, ofs);
93 /****************************************************************************
94 Send a NT Cancel request - used to hurry along a pending request. Usually
95 used to cancel a pending change notify request
96 note that this request does not expect a response!
97 ****************************************************************************/
98 NTSTATUS smb_raw_ntcancel(struct cli_request *oldreq)
100 struct cli_request *req;
102 req = cli_request_setup_transport(oldreq->transport, SMBntcancel, 0, 0);
104 SSVAL(req->out.hdr, HDR_MID, SVAL(oldreq->out.hdr, HDR_MID));
105 SSVAL(req->out.hdr, HDR_PID, SVAL(oldreq->out.hdr, HDR_PID));
106 SSVAL(req->out.hdr, HDR_TID, SVAL(oldreq->out.hdr, HDR_TID));
107 SSVAL(req->out.hdr, HDR_UID, SVAL(oldreq->out.hdr, HDR_UID));
109 /* this request does not expect a reply, so tell the signing
110 subsystem not to allocate an id for a reply */
111 req->one_way_request = 1;
113 cli_request_send(req);
115 return cli_request_destroy(req);