From a7fa02664ad8c8bbdad14e4c7f732d0da1867449 Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Fri, 28 Sep 2012 19:18:37 +0200
Subject: libcli/smb: add smb2cli_echo*
metze
---
libcli/smb/smb2cli_echo.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++
libcli/smb/smbXcli_base.h | 8 +++
libcli/smb/wscript | 1 +
3 files changed, 130 insertions(+)
create mode 100644 libcli/smb/smb2cli_echo.c
(limited to 'libcli/smb')
diff --git a/libcli/smb/smb2cli_echo.c b/libcli/smb/smb2cli_echo.c
new file mode 100644
index 00000000000..b978d506b98
--- /dev/null
+++ b/libcli/smb/smb2cli_echo.c
@@ -0,0 +1,121 @@
+/*
+ Unix SMB/CIFS implementation.
+ smb2 lib
+ Copyright (C) Stefan Metzmacher 2012
+
+ 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 "system/network.h"
+#include "lib/util/tevent_ntstatus.h"
+#include "smb_common.h"
+#include "smbXcli_base.h"
+
+struct smb2cli_echo_state {
+ uint8_t fixed[0x4];
+};
+
+static void smb2cli_echo_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_echo_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec)
+{
+ struct tevent_req *req, *subreq;
+ struct smb2cli_echo_state *state;
+ uint8_t *fixed;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct smb2cli_echo_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ fixed = state->fixed;
+ SSVAL(fixed, 0, 4);
+ SSVAL(fixed, 2, 0);
+
+ subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_KEEPALIVE,
+ 0, 0, /* flags */
+ timeout_msec,
+ NULL, /* tcon */
+ NULL, /* session */
+ state->fixed, sizeof(state->fixed),
+ NULL, 0);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, smb2cli_echo_done, req);
+ return req;
+}
+
+static void smb2cli_echo_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req =
+ tevent_req_callback_data(subreq,
+ struct tevent_req);
+ NTSTATUS status;
+ static const struct smb2cli_req_expected_response expected[] = {
+ {
+ .status = NT_STATUS_OK,
+ .body_size = 0x04
+ }
+ };
+
+ status = smb2cli_req_recv(subreq, NULL, NULL,
+ expected, ARRAY_SIZE(expected));
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+ tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_echo_recv(struct tevent_req *req)
+{
+ return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb2cli_echo(struct smbXcli_conn *conn,
+ uint32_t timeout_msec)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct tevent_context *ev;
+ struct tevent_req *req;
+ NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+ if (smbXcli_conn_has_async_calls(conn)) {
+ /*
+ * Can't use sync call while an async call is in flight
+ */
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+ ev = tevent_context_init(frame);
+ if (ev == NULL) {
+ goto fail;
+ }
+ req = smb2cli_echo_send(frame, ev, conn, timeout_msec);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = smb2cli_echo_recv(req);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
diff --git a/libcli/smb/smbXcli_base.h b/libcli/smb/smbXcli_base.h
index 5ef201e3a98..954ff45ad91 100644
--- a/libcli/smb/smbXcli_base.h
+++ b/libcli/smb/smbXcli_base.h
@@ -567,4 +567,12 @@ NTSTATUS smb2cli_ioctl(struct smbXcli_conn *conn,
DATA_BLOB *out_input_buffer,
DATA_BLOB *out_output_buffer);
+struct tevent_req *smb2cli_echo_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec);
+NTSTATUS smb2cli_echo_recv(struct tevent_req *req);
+NTSTATUS smb2cli_echo(struct smbXcli_conn *conn,
+ uint32_t timeout_msec);
+
#endif /* _SMBXCLI_BASE_H_ */
diff --git a/libcli/smb/wscript b/libcli/smb/wscript
index ae65d684df1..0a498d8551b 100755
--- a/libcli/smb/wscript
+++ b/libcli/smb/wscript
@@ -31,6 +31,7 @@ def build(bld):
smb2cli_query_info.c
smb2cli_query_directory.c
smb2cli_ioctl.c
+ smb2cli_echo.c
''',
deps='LIBCRYPTO errors gensec krb5samba smb_transport',
public_deps='talloc samba-util',
--
cgit