1 files changed, 113 insertions, 0 deletions
diff --git a/vendor/github.com/safchain/ethtool/ethtool_msglvl.go b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go
new file mode 100644
index 000000000..91836f019
--- /dev/null
+++ b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go
@@ -0,0 +1,113 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ *
+ */
+
+// Package ethtool  aims to provide a library giving a simple access to the
+// Linux SIOCETHTOOL ioctl operations. It can be used to retrieve informations
+// from a network device like statistics, driver related informations or
+// even the peer of a VETH interface.
+package ethtool
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+type ethtoolValue struct { /* ethtool.c: struct ethtool_value */
+	cmd  uint32
+	data uint32
+}
+
+// MsglvlGet returns the msglvl of the given interface.
+func (e *Ethtool) MsglvlGet(intf string) (uint32, error) {
+	edata := ethtoolValue{
+		cmd: ETHTOOL_GMSGLVL,
+	}
+
+	var name [IFNAMSIZ]byte
+	copy(name[:], []byte(intf))
+
+	ifr := ifreq{
+		ifr_name: name,
+		ifr_data: uintptr(unsafe.Pointer(&edata)),
+	}
+
+	_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return 0, syscall.Errno(ep)
+	}
+
+	return edata.data, nil
+}
+
+// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface.
+func (e *Ethtool) MsglvlSet(intf string, valset uint32) (uint32, uint32, error) {
+	edata := ethtoolValue{
+		cmd: ETHTOOL_GMSGLVL,
+	}
+
+	var name [IFNAMSIZ]byte
+	copy(name[:], []byte(intf))
+
+	ifr := ifreq{
+		ifr_name: name,
+		ifr_data: uintptr(unsafe.Pointer(&edata)),
+	}
+
+	_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return 0, 0, syscall.Errno(ep)
+	}
+
+	readval := edata.data
+
+	edata.cmd = ETHTOOL_SMSGLVL
+	edata.data = valset
+
+	_, _, ep = syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+		SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+	if ep != 0 {
+		return 0, 0, syscall.Errno(ep)
+	}
+
+	return readval, edata.data, nil
+}
+
+// MsglvlGet returns the msglvl of the given interface.
+func MsglvlGet(intf string) (uint32, error) {
+	e, err := NewEthtool()
+	if err != nil {
+		return 0, err
+	}
+	defer e.Close()
+	return e.MsglvlGet(intf)
+}
+
+// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface.
+func MsglvlSet(intf string, valset uint32) (uint32, uint32, error) {
+	e, err := NewEthtool()
+	if err != nil {
+		return 0, 0, err
+	}
+	defer e.Close()
+	return e.MsglvlSet(intf, valset)
+}