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authorStefan Metzmacher <metze@samba.org>2012-09-28 19:53:16 +0200
committerStefan Metzmacher <metze@samba.org>2012-09-29 10:10:30 +0200
commitb186fdd185d2d5c7d9abd7f652aed58fec6de2ff (patch)
tree29280d53d4a7bd9fae726278deeec55d2fe17613 /libcli
parenta7fa02664ad8c8bbdad14e4c7f732d0da1867449 (diff)
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libcli/smb: add smb1cli_echo*
metze
Diffstat (limited to 'libcli')
-rw-r--r--libcli/smb/smb1cli_echo.c170
-rw-r--r--libcli/smb/smbXcli_base.h10
-rwxr-xr-xlibcli/smb/wscript1
3 files changed, 181 insertions, 0 deletions
diff --git a/libcli/smb/smb1cli_echo.c b/libcli/smb/smb1cli_echo.c
new file mode 100644
index 0000000000..cab8ae628c
--- /dev/null
+++ b/libcli/smb/smb1cli_echo.c
@@ -0,0 +1,170 @@
+/*
+ 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 smb1cli_echo_state {
+ uint16_t vwv[1];
+ DATA_BLOB data;
+ uint16_t num_echos;
+};
+
+static void smb1cli_echo_done(struct tevent_req *subreq);
+
+struct tevent_req *smb1cli_echo_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ uint16_t num_echos,
+ DATA_BLOB data)
+{
+ struct tevent_req *req, *subreq;
+ struct smb1cli_echo_state *state;
+
+ req = tevent_req_create(mem_ctx, &state, struct smb1cli_echo_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ SSVAL(state->vwv, 0, num_echos);
+ state->data = data;
+ state->num_echos = num_echos;
+
+ subreq = smb1cli_req_send(state, ev, conn, SMBecho,
+ 0, 0, /* *_flags */
+ 0, 0, /* *_flags2 */
+ timeout_msec,
+ 0, /* pid */
+ NULL, /* tcon */
+ NULL, /* session */
+ ARRAY_SIZE(state->vwv), state->vwv,
+ data.length, data.data);
+ if (subreq == NULL) {
+ goto fail;
+ }
+ tevent_req_set_callback(subreq, smb1cli_echo_done, req);
+ return req;
+ fail:
+ TALLOC_FREE(req);
+ return NULL;
+}
+
+static void smb1cli_echo_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct smb1cli_echo_state *state = tevent_req_data(
+ req, struct smb1cli_echo_state);
+ NTSTATUS status;
+ uint32_t num_bytes;
+ uint8_t *bytes;
+ struct iovec *recv_iov;
+ struct smb1cli_req_expected_response expected[] = {
+ {
+ .status = NT_STATUS_OK,
+ .wct = 1,
+ },
+ };
+
+ status = smb1cli_req_recv(subreq, state,
+ &recv_iov,
+ NULL, /* phdr */
+ NULL, /* pwct */
+ NULL, /* pvwv */
+ NULL, /* pvwv_offset */
+ &num_bytes,
+ &bytes,
+ NULL, /* pbytes_offset */
+ NULL, /* pinbuf */
+ expected, ARRAY_SIZE(expected));
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ if (num_bytes != state->data.length) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (memcmp(bytes, state->data.data, num_bytes) != 0) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ /* TODO: do we want to verify the sequence number? */
+
+ state->num_echos -=1;
+ if (state->num_echos == 0) {
+ tevent_req_done(req);
+ return;
+ }
+
+ if (!smbXcli_req_set_pending(subreq)) {
+ tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+}
+
+/**
+ * Get the result out from an echo request
+ * @param[in] req The async_req from smb1cli_echo_send
+ * @retval Did the server reply correctly?
+ */
+
+NTSTATUS smb1cli_echo_recv(struct tevent_req *req)
+{
+ return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb1cli_echo(struct smbXcli_conn *conn, uint32_t timeout_msec,
+ uint16_t num_echos, DATA_BLOB data)
+{
+ 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 = smb1cli_echo_send(frame, ev, conn, timeout_msec, num_echos, data);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = smb1cli_echo_recv(req);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
diff --git a/libcli/smb/smbXcli_base.h b/libcli/smb/smbXcli_base.h
index 954ff45ad9..03cb2809e7 100644
--- a/libcli/smb/smbXcli_base.h
+++ b/libcli/smb/smbXcli_base.h
@@ -187,6 +187,16 @@ NTSTATUS smb1cli_trans(TALLOC_CTX *mem_ctx, struct smbXcli_conn *conn,
uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata);
+struct tevent_req *smb1cli_echo_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ uint16_t num_echos,
+ DATA_BLOB data);
+NTSTATUS smb1cli_echo_recv(struct tevent_req *req);
+NTSTATUS smb1cli_echo(struct smbXcli_conn *conn, uint32_t timeout_msec,
+ uint16_t num_echos, DATA_BLOB data);
+
uint32_t smb2cli_conn_server_capabilities(struct smbXcli_conn *conn);
uint16_t smb2cli_conn_server_security_mode(struct smbXcli_conn *conn);
uint32_t smb2cli_conn_max_trans_size(struct smbXcli_conn *conn);
diff --git a/libcli/smb/wscript b/libcli/smb/wscript
index 0a498d8551..3616ad140f 100755
--- a/libcli/smb/wscript
+++ b/libcli/smb/wscript
@@ -21,6 +21,7 @@ def build(bld):
util.c
smbXcli_base.c
smb1cli_trans.c
+ smb1cli_echo.c
smb2cli_session.c
smb2cli_create.c
smb2cli_close.c