source: vendor/current/libcli/smb/smb1cli_close.c

Last change on this file was 988, checked in by Silvan Scherrer, 9 years ago

Samba Server: update vendor to version 4.4.3
File size: 5.3 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 Copyright (C) Gregor Beck 2013
5 Copyright (C) Stefan Metzmacher 2013
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19*/
20
21#include "includes.h"
22#include "system/network.h"
23#include "lib/util/tevent_ntstatus.h"
24#include "smb_common.h"
25#include "smbXcli_base.h"
26
27struct smb1cli_close_state {
28 uint16_t vwv[3];
29};
30
31static void smb1cli_close_done(struct tevent_req *subreq);
32
33/**
34 * Send an asynchronous SMB_COM_CLOSE request.
35 * <a href="http://msdn.microsoft.com/en-us/library/ee442151.aspx">MS-CIFS 2.2.4.5.1</a>
36 * @see smb1cli_close_recv(), smb1cli_close()
37 *
38 * @param[in] mem_ctx The memory context for the result.
39 * @param[in] ev The event context to work on.
40 * @param[in] conn The smb connection.
41 * @param[in] timeout_msec If positiv a timeout for the request.
42 * @param[in] pid The process identifier.
43 * @param[in] tcon The smb tree connect.
44 * @param[in] session The smb session.
45 * @param[in] fnum The file id of the file to be closed.
46 * @param[in] last_modified If not 0 or 0xFFFFFFFF request to set modification time to this number of seconds since January 1, 1970.
47 *
48 * @return a tevent_req or NULL.
49 */
50struct tevent_req *smb1cli_close_send(TALLOC_CTX *mem_ctx,
51 struct tevent_context *ev,
52 struct smbXcli_conn *conn,
53 uint32_t timeout_msec,
54 uint32_t pid,
55 struct smbXcli_tcon *tcon,
56 struct smbXcli_session *session,
57 uint16_t fnum,
58 uint32_t last_modified)
59{
60 struct tevent_req *req, *subreq;
61 struct smb1cli_close_state *state;
62
63 req = tevent_req_create(mem_ctx, &state, struct smb1cli_close_state);
64 if (req == NULL) {
65 return NULL;
66 }
67
68 SSVAL(state->vwv+0, 0, fnum);
69 SIVALS(state->vwv+1, 0, last_modified);
70
71 subreq = smb1cli_req_send(state, ev, conn, SMBclose,
72 0, 0, /* *_flags */
73 0, 0, /* *_flags2 */
74 timeout_msec, pid, tcon, session,
75 ARRAY_SIZE(state->vwv), state->vwv,
76 0, NULL);
77 if (tevent_req_nomem(subreq, req)) {
78 return tevent_req_post(req, ev);
79 }
80 tevent_req_set_callback(subreq, smb1cli_close_done, req);
81 return req;
82}
83
84static void smb1cli_close_done(struct tevent_req *subreq)
85{
86 struct tevent_req *req = tevent_req_callback_data(
87 subreq, struct tevent_req);
88 struct smb1cli_close_state *state = tevent_req_data(
89 req, struct smb1cli_close_state);
90 NTSTATUS status;
91 static const struct smb1cli_req_expected_response expected[] = {
92 {
93 .status = NT_STATUS_OK,
94 .wct = 0x00
95 },
96 };
97
98 status = smb1cli_req_recv(subreq, state,
99 NULL, /* recv_iov */
100 NULL, /* phdr */
101 NULL, /* wct */
102 NULL, /* vwv */
103 NULL, /* pvwv_offset */
104 NULL, /* num_bytes */
105 NULL, /* bytes */
106 NULL, /* pbytes_offset */
107 NULL, /* inbuf */
108 expected, ARRAY_SIZE(expected));
109 TALLOC_FREE(subreq);
110 if (tevent_req_nterror(req, status)) {
111 return;
112 }
113
114 tevent_req_done(req);
115}
116
117/**
118 * Receive the response to an asynchronous SMB_COM_CLOSE request.
119 * <a href="http://msdn.microsoft.com/en-us/library/ee441667.aspx">MS-CIFS 2.2.4.5.2</a>
120 *
121 * @param req A tevent_req created with smb1cli_close_send()
122 *
123 * @return NT_STATUS_OK on success
124 */
125NTSTATUS smb1cli_close_recv(struct tevent_req *req)
126{
127 return tevent_req_simple_recv_ntstatus(req);
128}
129
130/**
131 * Send an synchronous SMB_COM_CLOSE request.
132 * <a href="http://msdn.microsoft.com/en-us/library/ee441493.aspx">MS-CIFS 2.2.4.5</a>
133 * @see smb1cli_close_send(), smb1cli_close_recv()
134 *
135 * @param[in] conn The smb connection.
136 * @param[in] timeout_msec If positiv a timeout for the request.
137 * @param[in] pid The process identifier.
138 * @param[in] tcon The smb tree connect.
139 * @param[in] session The smb session.
140 * @param[in] fnum The file id of the file to be closed.
141 * @param[in] last_modified If not 0 or 0xFFFFFFFF request to set modification time to this number of seconds since J
142 *
143 * @return NT_STATUS_OK on success.
144 */
145NTSTATUS smb1cli_close(struct smbXcli_conn *conn,
146 uint32_t timeout_msec,
147 uint32_t pid,
148 struct smbXcli_tcon *tcon,
149 struct smbXcli_session *session,
150 uint16_t fnum,
151 uint32_t last_modified)
152{
153 NTSTATUS status = NT_STATUS_OK;
154 struct tevent_req *req;
155 TALLOC_CTX *frame = talloc_stackframe();
156 struct tevent_context *ev;
157
158 if (smbXcli_conn_has_async_calls(conn)) {
159 /*
160 * Can't use sync call while an async call is in flight
161 */
162 status = NT_STATUS_INVALID_PARAMETER;
163 goto done;
164 }
165
166 ev = samba_tevent_context_init(frame);
167 if (ev == NULL) {
168 status = NT_STATUS_NO_MEMORY;
169 goto done;
170 }
171
172 req = smb1cli_close_send(frame, ev, conn,
173 timeout_msec, pid, tcon, session,
174 fnum, last_modified);
175 if (req == NULL) {
176 status = NT_STATUS_NO_MEMORY;
177 goto done;
178 }
179
180 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
181 goto done;
182 }
183
184 status = smb1cli_close_recv(req);
185done:
186 talloc_free(frame);
187 return status;
188}
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