source: vendor/current/libcli/smb/smb2cli_flush.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: 3.4 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 smb2 lib
4 Copyright (C) Volker Lendecke 2011
5
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 3 of the License, or
9 (at your option) any later version.
10
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.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19
20#include "includes.h"
21#include "system/network.h"
22#include "lib/util/tevent_ntstatus.h"
23#include "smb_common.h"
24#include "smbXcli_base.h"
25
26struct smb2cli_flush_state {
27 uint8_t fixed[24];
28};
29
30static void smb2cli_flush_done(struct tevent_req *subreq);
31
32struct tevent_req *smb2cli_flush_send(TALLOC_CTX *mem_ctx,
33 struct tevent_context *ev,
34 struct smbXcli_conn *conn,
35 uint32_t timeout_msec,
36 struct smbXcli_session *session,
37 struct smbXcli_tcon *tcon,
38 uint64_t fid_persistent,
39 uint64_t fid_volatile)
40{
41 struct tevent_req *req, *subreq;
42 struct smb2cli_flush_state *state;
43 uint8_t *fixed;
44
45 req = tevent_req_create(mem_ctx, &state,
46 struct smb2cli_flush_state);
47 if (req == NULL) {
48 return NULL;
49 }
50 fixed = state->fixed;
51 SSVAL(fixed, 0, 24);
52 SBVAL(fixed, 8, fid_persistent);
53 SBVAL(fixed, 16, fid_volatile);
54
55 subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_FLUSH,
56 0, 0, /* flags */
57 timeout_msec,
58 tcon,
59 session,
60 state->fixed, sizeof(state->fixed),
61 NULL, 0, /* dyn* */
62 0); /* max_dyn_len */
63 if (tevent_req_nomem(subreq, req)) {
64 return tevent_req_post(req, ev);
65 }
66 tevent_req_set_callback(subreq, smb2cli_flush_done, req);
67 return req;
68}
69
70static void smb2cli_flush_done(struct tevent_req *subreq)
71{
72 struct tevent_req *req =
73 tevent_req_callback_data(subreq,
74 struct tevent_req);
75 NTSTATUS status;
76 static const struct smb2cli_req_expected_response expected[] = {
77 {
78 .status = NT_STATUS_OK,
79 .body_size = 0x04
80 }
81 };
82
83 status = smb2cli_req_recv(subreq, NULL, NULL,
84 expected, ARRAY_SIZE(expected));
85 TALLOC_FREE(subreq);
86 if (tevent_req_nterror(req, status)) {
87 return;
88 }
89 tevent_req_done(req);
90}
91
92NTSTATUS smb2cli_flush_recv(struct tevent_req *req)
93{
94 return tevent_req_simple_recv_ntstatus(req);
95}
96
97NTSTATUS smb2cli_flush(struct smbXcli_conn *conn,
98 uint32_t timeout_msec,
99 struct smbXcli_session *session,
100 struct smbXcli_tcon *tcon,
101 uint64_t fid_persistent,
102 uint64_t fid_volatile)
103{
104 TALLOC_CTX *frame = talloc_stackframe();
105 struct tevent_context *ev;
106 struct tevent_req *req;
107 NTSTATUS status = NT_STATUS_NO_MEMORY;
108
109 if (smbXcli_conn_has_async_calls(conn)) {
110 /*
111 * Can't use sync call while an async call is in flight
112 */
113 status = NT_STATUS_INVALID_PARAMETER;
114 goto fail;
115 }
116 ev = samba_tevent_context_init(frame);
117 if (ev == NULL) {
118 goto fail;
119 }
120 req = smb2cli_flush_send(frame, ev, conn, timeout_msec,
121 session, tcon,
122 fid_persistent, fid_volatile);
123 if (req == NULL) {
124 goto fail;
125 }
126 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
127 goto fail;
128 }
129 status = smb2cli_flush_recv(req);
130 fail:
131 TALLOC_FREE(frame);
132 return status;
133}
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