2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2012
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.
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, see <http://www.gnu.org/licenses/>.
21 #include "system/network.h"
22 #include "lib/util/tevent_ntstatus.h"
23 #include "smb_common.h"
24 #include "smbXcli_base.h"
26 struct smb2cli_echo_state {
30 static void smb2cli_echo_done(struct tevent_req *subreq);
32 struct tevent_req *smb2cli_echo_send(TALLOC_CTX *mem_ctx,
33 struct tevent_context *ev,
34 struct smbXcli_conn *conn,
35 uint32_t timeout_msec)
37 struct tevent_req *req, *subreq;
38 struct smb2cli_echo_state *state;
41 req = tevent_req_create(mem_ctx, &state,
42 struct smb2cli_echo_state);
50 subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_KEEPALIVE,
55 state->fixed, sizeof(state->fixed),
58 if (tevent_req_nomem(subreq, req)) {
59 return tevent_req_post(req, ev);
61 tevent_req_set_callback(subreq, smb2cli_echo_done, req);
65 static void smb2cli_echo_done(struct tevent_req *subreq)
67 struct tevent_req *req =
68 tevent_req_callback_data(subreq,
71 static const struct smb2cli_req_expected_response expected[] = {
73 .status = NT_STATUS_OK,
78 status = smb2cli_req_recv(subreq, NULL, NULL,
79 expected, ARRAY_SIZE(expected));
81 if (tevent_req_nterror(req, status)) {
87 NTSTATUS smb2cli_echo_recv(struct tevent_req *req)
89 return tevent_req_simple_recv_ntstatus(req);
92 NTSTATUS smb2cli_echo(struct smbXcli_conn *conn,
93 uint32_t timeout_msec)
95 TALLOC_CTX *frame = talloc_stackframe();
96 struct tevent_context *ev;
97 struct tevent_req *req;
98 NTSTATUS status = NT_STATUS_NO_MEMORY;
100 if (smbXcli_conn_has_async_calls(conn)) {
102 * Can't use sync call while an async call is in flight
104 status = NT_STATUS_INVALID_PARAMETER;
107 ev = samba_tevent_context_init(frame);
111 req = smb2cli_echo_send(frame, ev, conn, timeout_msec);
115 if (!tevent_req_poll_ntstatus(req, ev, &status)) {
118 status = smb2cli_echo_recv(req);