Implement ethtool get/set value operations
Bug: 156784343
Test: manual
Change-Id: I33b23bf9c6639cab6006c756d4ddbe561b9441ba
diff --git a/automotive/can/1.0/default/libnetdevice/ethtool.cpp b/automotive/can/1.0/default/libnetdevice/ethtool.cpp
new file mode 100644
index 0000000..762ef5c
--- /dev/null
+++ b/automotive/can/1.0/default/libnetdevice/ethtool.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <libnetdevice/ethtool.h>
+
+#include "ifreqs.h"
+
+#include <linux/ethtool.h>
+
+namespace android::netdevice::ethtool {
+
+std::optional<uint32_t> getValue(const std::string& ifname, uint32_t command) {
+ struct ethtool_value valueop = {};
+ valueop.cmd = command;
+
+ auto ifr = ifreqs::fromName(ifname);
+ ifr.ifr_data = &valueop;
+
+ if (!ifreqs::send(SIOCETHTOOL, ifr)) return std::nullopt;
+ return valueop.data;
+}
+
+bool setValue(const std::string& ifname, uint32_t command, uint32_t value) {
+ struct ethtool_value valueop = {};
+ valueop.cmd = command;
+ valueop.data = value;
+
+ auto ifr = ifreqs::fromName(ifname);
+ ifr.ifr_data = &valueop;
+
+ return ifreqs::send(SIOCETHTOOL, ifr);
+}
+
+} // namespace android::netdevice::ethtool