/usr/share/gocode/src/github.com/safchain/ethtool/ethtool_cmd.go is in golang-github-safchain-ethtool-dev 0.0~git20170622.7ff1ba2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | /*
*
* 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 (
"reflect"
"syscall"
"unsafe"
)
type EthtoolCmd struct { /* ethtool.c: struct ethtool_cmd */
Cmd uint32
Supported uint32
Advertising uint32
Speed uint16
Duplex uint8
Port uint8
Phy_address uint8
Transceiver uint8
Autoneg uint8
Mdio_support uint8
Maxtxpkt uint32
Maxrxpkt uint32
Speed_hi uint16
Eth_tp_mdix uint8
Reserved2 uint8
Lp_advertising uint32
Reserved [2]uint32
}
// CmdGet returns the interface settings in the receiver struct
// and returns speed
func (ecmd *EthtoolCmd) CmdGet(intf string) (uint32, error) {
e, err := NewEthtool()
if err != nil {
return 0, err
}
defer e.Close()
return e.CmdGet(ecmd, intf)
}
// CmdSet sets and returns the settings in the receiver struct
// and returns speed
func (ecmd *EthtoolCmd) CmdSet(intf string) (uint32, error) {
e, err := NewEthtool()
if err != nil {
return 0, err
}
defer e.Close()
return e.CmdSet(ecmd, intf)
}
func (f *EthtoolCmd) reflect(retv *map[string]uint64) {
val := reflect.ValueOf(f).Elem()
for i := 0; i < val.NumField(); i++ {
valueField := val.Field(i)
typeField := val.Type().Field(i)
t := valueField.Interface()
//tt := reflect.TypeOf(t)
//fmt.Printf(" t %T %v tt %T %v\n", t, t, tt, tt)
switch t.(type) {
case uint32:
//fmt.Printf(" t is uint32\n")
(*retv)[typeField.Name] = uint64(t.(uint32))
case uint16:
(*retv)[typeField.Name] = uint64(t.(uint16))
case uint8:
(*retv)[typeField.Name] = uint64(t.(uint8))
case int32:
(*retv)[typeField.Name] = uint64(t.(int32))
case int16:
(*retv)[typeField.Name] = uint64(t.(int16))
case int8:
(*retv)[typeField.Name] = uint64(t.(int8))
default:
(*retv)[typeField.Name+"_unknown_type"] = 0
}
//tag := typeField.Tag
//fmt.Printf("Field Name: %s,\t Field Value: %v,\t Tag Value: %s\n",
// typeField.Name, valueField.Interface(), tag.Get("tag_name"))
}
}
// CmdGet returns the interface settings in the receiver struct
// and returns speed
func (e *Ethtool) CmdGet(ecmd *EthtoolCmd, intf string) (uint32, error) {
ecmd.Cmd = ETHTOOL_GSET
var name [IFNAMSIZ]byte
copy(name[:], []byte(intf))
ifr := ifreq{
ifr_name: name,
ifr_data: uintptr(unsafe.Pointer(ecmd)),
}
_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
if ep != 0 {
return 0, syscall.Errno(ep)
}
var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
(uint32(ecmd.Speed) & 0xffff)
return speedval, nil
}
// CmdSet sets and returns the settings in the receiver struct
// and returns speed
func (e *Ethtool) CmdSet(ecmd *EthtoolCmd, intf string) (uint32, error) {
ecmd.Cmd = ETHTOOL_SSET
var name [IFNAMSIZ]byte
copy(name[:], []byte(intf))
ifr := ifreq{
ifr_name: name,
ifr_data: uintptr(unsafe.Pointer(ecmd)),
}
_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
if ep != 0 {
return 0, syscall.Errno(ep)
}
var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
(uint32(ecmd.Speed) & 0xffff)
return speedval, nil
}
// CmdGetMapped returns the interface settings in a map
func (e *Ethtool) CmdGetMapped(intf string) (map[string]uint64, error) {
ecmd := EthtoolCmd{
Cmd: ETHTOOL_GSET,
}
var name [IFNAMSIZ]byte
copy(name[:], []byte(intf))
ifr := ifreq{
ifr_name: name,
ifr_data: uintptr(unsafe.Pointer(&ecmd)),
}
_, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
if ep != 0 {
return nil, syscall.Errno(ep)
}
var result = make(map[string]uint64)
// ref https://gist.github.com/drewolson/4771479
// Golang Reflection Example
ecmd.reflect(&result)
var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) |
(uint32(ecmd.Speed) & 0xffff)
result["speed"] = uint64(speedval)
return result, nil
}
func CmdGetMapped(intf string) (map[string]uint64, error) {
e, err := NewEthtool()
if err != nil {
return nil, err
}
defer e.Close()
return e.CmdGetMapped(intf)
}
|