pax_global_header00006660000000000000000000000064144024632660014521gustar00rootroot0000000000000052 comment=436ddbfb4b3aba10449926abfef387d6e2940341 ethtool-0.3.0/000077500000000000000000000000001440246326600131775ustar00rootroot00000000000000ethtool-0.3.0/.github/000077500000000000000000000000001440246326600145375ustar00rootroot00000000000000ethtool-0.3.0/.github/dependabot.yml000066400000000000000000000006521440246326600173720ustar00rootroot00000000000000# To get started with Dependabot version updates, you'll need to specify which # package ecosystems to update and where the package manifests are located. # Please see the documentation for all configuration options: # https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates version: 2 updates: - package-ecosystem: gomod directory: / schedule: interval: weekly ethtool-0.3.0/.github/workflows/000077500000000000000000000000001440246326600165745ustar00rootroot00000000000000ethtool-0.3.0/.github/workflows/unittests.yml000066400000000000000000000007171440246326600213660ustar00rootroot00000000000000name: "Unit tests" run-name: ${{ github.actor }} is testing ethtool 🚀 on: [push, pull_request] jobs: unittests: runs-on: ubuntu-latest steps: - name: Checkout repository uses: actions/checkout@v3 - name: Setup Go uses: actions/setup-go@v3 with: go-version: '1.19' - name: Lint uses: golangci/golangci-lint-action@v3 - name: Run unit tests run: | go test -v ./... ethtool-0.3.0/.gitignore000066400000000000000000000005001440246326600151620ustar00rootroot00000000000000# Compiled Object files, Static and Dynamic libs (Shared Objects) *.o *.a *.so # Folders _obj _test # Architecture specific extensions/prefixes *.[568vq] [568vq].out *.cgo1.go *.cgo2.c _cgo_defun.c _cgo_gotypes.go _cgo_export.* _testmain.go *.exe *.test *.prof # Skip compiled example binary file /example/example ethtool-0.3.0/.golangci.yml000066400000000000000000000003231440246326600155610ustar00rootroot00000000000000linters: disable: - gosimple - unused enable: - gci - gofmt - misspell linters-settings: gci: sections: - standard - default - prefix(github.com/safchain/ethtool) ethtool-0.3.0/LICENSE000066400000000000000000000261361440246326600142140ustar00rootroot00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. ethtool-0.3.0/Makefile000066400000000000000000000001031440246326600146310ustar00rootroot00000000000000all: build build: CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build ethtool-0.3.0/README.md000066400000000000000000000031511440246326600144560ustar00rootroot00000000000000# ethtool go package # ![Build Status](https://github.com/safchain/ethtool/actions/workflows/unittests.yml/badge.svg) [![GoDoc](https://godoc.org/github.com/safchain/ethtool?status.svg)](https://godoc.org/github.com/safchain/ethtool) The ethtool package aims to provide a library that provides easy access to the Linux SIOCETHTOOL ioctl operations. It can be used to retrieve information from a network device such as statistics, driver related information or even the peer of a VETH interface. # Installation ```shell go get github.com/safchain/ethtool ``` # How to use ```go package main import ( "fmt" "github.com/safchain/ethtool" ) func main() { ethHandle, err := ethtool.NewEthtool() if err != nil { panic(err.Error()) } defer ethHandle.Close() // Retrieve tx from eth0 stats, err := ethHandle.Stats("eth0") if err != nil { panic(err.Error()) } fmt.Printf("TX: %d\n", stats["tx_bytes"]) // Retrieve peer index of a veth interface stats, err = ethHandle.Stats("veth0") if err != nil { panic(err.Error()) } fmt.Printf("Peer Index: %d\n", stats["peer_ifindex"]) } ``` ## LICENSE ## 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. ethtool-0.3.0/ethtool.go000066400000000000000000000513001440246326600152030ustar00rootroot00000000000000/* * * 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. * */ // The ethtool package aims to provide a library that provides easy access // to the Linux SIOCETHTOOL ioctl operations. It can be used to retrieve information // from a network device such as statistics, driver related information or even // the peer of a VETH interface. package ethtool import ( "bytes" "encoding/hex" "fmt" "strings" "unsafe" "golang.org/x/sys/unix" ) // Maximum size of an interface name const ( IFNAMSIZ = 16 ) // ioctl ethtool request const ( SIOCETHTOOL = 0x8946 ) // ethtool stats related constants. const ( ETH_GSTRING_LEN = 32 ETH_SS_STATS = 1 ETH_SS_FEATURES = 4 // CMD supported ETHTOOL_GDRVINFO = 0x00000003 /* Get driver info. */ ETHTOOL_GSTRINGS = 0x0000001b /* get specified string set */ ETHTOOL_GSTATS = 0x0000001d /* get NIC-specific statistics */ // other CMDs from ethtool-copy.h of ethtool-3.5 package ETHTOOL_GSET = 0x00000001 /* Get settings. */ ETHTOOL_SSET = 0x00000002 /* Set settings. */ ETHTOOL_GMSGLVL = 0x00000007 /* Get driver message level */ ETHTOOL_SMSGLVL = 0x00000008 /* Set driver msg level. */ ETHTOOL_GCHANNELS = 0x0000003c /* Get no of channels */ ETHTOOL_SCHANNELS = 0x0000003d /* Set no of channels */ ETHTOOL_GCOALESCE = 0x0000000e /* Get coalesce config */ /* Get link status for host, i.e. whether the interface *and* the * physical port (if there is one) are up (ethtool_value). */ ETHTOOL_GLINK = 0x0000000a ETHTOOL_GMODULEINFO = 0x00000042 /* Get plug-in module information */ ETHTOOL_GMODULEEEPROM = 0x00000043 /* Get plug-in module eeprom */ ETHTOOL_GPERMADDR = 0x00000020 /* Get permanent hardware address */ ETHTOOL_GFEATURES = 0x0000003a /* Get device offload settings */ ETHTOOL_SFEATURES = 0x0000003b /* Change device offload settings */ ETHTOOL_GFLAGS = 0x00000025 /* Get flags bitmap(ethtool_value) */ ETHTOOL_GSSET_INFO = 0x00000037 /* Get string set info */ ETHTOOL_GET_TS_INFO = 0x00000041 /* Get time stamping and PHC info */ ) // MAX_GSTRINGS maximum number of stats entries that ethtool can // retrieve currently. const ( MAX_GSTRINGS = 32768 MAX_FEATURE_BLOCKS = (MAX_GSTRINGS + 32 - 1) / 32 EEPROM_LEN = 640 PERMADDR_LEN = 32 ) type ifreq struct { ifr_name [IFNAMSIZ]byte ifr_data uintptr } // following structures comes from uapi/linux/ethtool.h type ethtoolSsetInfo struct { cmd uint32 reserved uint32 sset_mask uint32 data uintptr } type ethtoolGetFeaturesBlock struct { available uint32 requested uint32 active uint32 never_changed uint32 } type ethtoolGfeatures struct { cmd uint32 size uint32 blocks [MAX_FEATURE_BLOCKS]ethtoolGetFeaturesBlock } type ethtoolSetFeaturesBlock struct { valid uint32 requested uint32 } type ethtoolSfeatures struct { cmd uint32 size uint32 blocks [MAX_FEATURE_BLOCKS]ethtoolSetFeaturesBlock } type ethtoolDrvInfo struct { cmd uint32 driver [32]byte version [32]byte fw_version [32]byte bus_info [32]byte erom_version [32]byte reserved2 [12]byte n_priv_flags uint32 n_stats uint32 testinfo_len uint32 eedump_len uint32 regdump_len uint32 } // DrvInfo contains driver information // ethtool.h v3.5: struct ethtool_drvinfo type DrvInfo struct { Cmd uint32 Driver string Version string FwVersion string BusInfo string EromVersion string Reserved2 string NPrivFlags uint32 NStats uint32 TestInfoLen uint32 EedumpLen uint32 RegdumpLen uint32 } // Channels contains the number of channels for a given interface. type Channels struct { Cmd uint32 MaxRx uint32 MaxTx uint32 MaxOther uint32 MaxCombined uint32 RxCount uint32 TxCount uint32 OtherCount uint32 CombinedCount uint32 } // Coalesce is a coalesce config for an interface type Coalesce struct { Cmd uint32 RxCoalesceUsecs uint32 RxMaxCoalescedFrames uint32 RxCoalesceUsecsIrq uint32 RxMaxCoalescedFramesIrq uint32 TxCoalesceUsecs uint32 TxMaxCoalescedFrames uint32 TxCoalesceUsecsIrq uint32 TxMaxCoalescedFramesIrq uint32 StatsBlockCoalesceUsecs uint32 UseAdaptiveRxCoalesce uint32 UseAdaptiveTxCoalesce uint32 PktRateLow uint32 RxCoalesceUsecsLow uint32 RxMaxCoalescedFramesLow uint32 TxCoalesceUsecsLow uint32 TxMaxCoalescedFramesLow uint32 PktRateHigh uint32 RxCoalesceUsecsHigh uint32 RxMaxCoalescedFramesHigh uint32 TxCoalesceUsecsHigh uint32 TxMaxCoalescedFramesHigh uint32 RateSampleInterval uint32 } const ( SOF_TIMESTAMPING_TX_HARDWARE = (1 << 0) SOF_TIMESTAMPING_TX_SOFTWARE = (1 << 1) SOF_TIMESTAMPING_RX_HARDWARE = (1 << 2) SOF_TIMESTAMPING_RX_SOFTWARE = (1 << 3) SOF_TIMESTAMPING_SOFTWARE = (1 << 4) SOF_TIMESTAMPING_SYS_HARDWARE = (1 << 5) SOF_TIMESTAMPING_RAW_HARDWARE = (1 << 6) SOF_TIMESTAMPING_OPT_ID = (1 << 7) SOF_TIMESTAMPING_TX_SCHED = (1 << 8) SOF_TIMESTAMPING_TX_ACK = (1 << 9) SOF_TIMESTAMPING_OPT_CMSG = (1 << 10) SOF_TIMESTAMPING_OPT_TSONLY = (1 << 11) SOF_TIMESTAMPING_OPT_STATS = (1 << 12) SOF_TIMESTAMPING_OPT_PKTINFO = (1 << 13) SOF_TIMESTAMPING_OPT_TX_SWHW = (1 << 14) SOF_TIMESTAMPING_BIND_PHC = (1 << 15) ) const ( /* * No outgoing packet will need hardware time stamping; * should a packet arrive which asks for it, no hardware * time stamping will be done. */ HWTSTAMP_TX_OFF = iota /* * Enables hardware time stamping for outgoing packets; * the sender of the packet decides which are to be * time stamped by setting %SOF_TIMESTAMPING_TX_SOFTWARE * before sending the packet. */ HWTSTAMP_TX_ON /* * Enables time stamping for outgoing packets just as * HWTSTAMP_TX_ON does, but also enables time stamp insertion * directly into Sync packets. In this case, transmitted Sync * packets will not received a time stamp via the socket error * queue. */ HWTSTAMP_TX_ONESTEP_SYNC /* * Same as HWTSTAMP_TX_ONESTEP_SYNC, but also enables time * stamp insertion directly into PDelay_Resp packets. In this * case, neither transmitted Sync nor PDelay_Resp packets will * receive a time stamp via the socket error queue. */ HWTSTAMP_TX_ONESTEP_P2P ) const ( HWTSTAMP_FILTER_NONE = iota /* time stamp no incoming packet at all */ HWTSTAMP_FILTER_ALL /* time stamp any incoming packet */ HWTSTAMP_FILTER_SOME /* return value: time stamp all packets requested plus some others */ HWTSTAMP_FILTER_PTP_V1_L4_EVENT /* PTP v1, UDP, any kind of event packet */ HWTSTAMP_FILTER_PTP_V1_L4_SYNC /* PTP v1, UDP, Sync packet */ HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ /* PTP v1, UDP, Delay_req packet */ HWTSTAMP_FILTER_PTP_V2_L4_EVENT /* PTP v2, UDP, any kind of event packet */ HWTSTAMP_FILTER_PTP_V2_L4_SYNC /* PTP v2, UDP, Sync packet */ HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ /* PTP v2, UDP, Delay_req packet */ HWTSTAMP_FILTER_PTP_V2_L2_EVENT /* 802.AS1, Ethernet, any kind of event packet */ HWTSTAMP_FILTER_PTP_V2_L2_SYNC /* 802.AS1, Ethernet, Sync packet */ HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ /* 802.AS1, Ethernet, Delay_req packet */ HWTSTAMP_FILTER_PTP_V2_EVENT /* PTP v2/802.AS1, any layer, any kind of event packet */ HWTSTAMP_FILTER_PTP_V2_SYNC /* PTP v2/802.AS1, any layer, Sync packet */ HWTSTAMP_FILTER_PTP_V2_DELAY_REQ /* PTP v2/802.AS1, any layer, Delay_req packet */ HWTSTAMP_FILTER_NTP_ALL /* NTP, UDP, all versions and packet modes */ ) type TimestampingInformation struct { Cmd uint32 SoTimestamping uint32 /* SOF_TIMESTAMPING_* bitmask */ PhcIndex int32 TxTypes uint32 /* HWTSTAMP_TX_* */ txReserved [3]uint32 RxFilters uint32 /* HWTSTAMP_FILTER_ */ rxReserved [3]uint32 } type ethtoolGStrings struct { cmd uint32 string_set uint32 len uint32 data [MAX_GSTRINGS * ETH_GSTRING_LEN]byte } type ethtoolStats struct { cmd uint32 n_stats uint32 data [MAX_GSTRINGS]uint64 } type ethtoolEeprom struct { cmd uint32 magic uint32 offset uint32 len uint32 data [EEPROM_LEN]byte } type ethtoolModInfo struct { cmd uint32 tpe uint32 eeprom_len uint32 reserved [8]uint32 } type ethtoolLink struct { cmd uint32 data uint32 } type ethtoolPermAddr struct { cmd uint32 size uint32 data [PERMADDR_LEN]byte } type Ethtool struct { fd int } // Convert zero-terminated array of chars (string in C) to a Go string. func goString(s []byte) string { strEnd := bytes.IndexByte(s, 0) if strEnd == -1 { return string(s[:]) } return string(s[:strEnd]) } // DriverName returns the driver name of the given interface name. func (e *Ethtool) DriverName(intf string) (string, error) { info, err := e.getDriverInfo(intf) if err != nil { return "", err } return goString(info.driver[:]), nil } // BusInfo returns the bus information of the given interface name. func (e *Ethtool) BusInfo(intf string) (string, error) { info, err := e.getDriverInfo(intf) if err != nil { return "", err } return goString(info.bus_info[:]), nil } // ModuleEeprom returns Eeprom information of the given interface name. func (e *Ethtool) ModuleEeprom(intf string) ([]byte, error) { eeprom, _, err := e.getModuleEeprom(intf) if err != nil { return nil, err } return eeprom.data[:eeprom.len], nil } // ModuleEeprom returns Eeprom information of the given interface name. func (e *Ethtool) ModuleEepromHex(intf string) (string, error) { eeprom, _, err := e.getModuleEeprom(intf) if err != nil { return "", err } return hex.EncodeToString(eeprom.data[:eeprom.len]), nil } // DriverInfo returns driver information of the given interface name. func (e *Ethtool) DriverInfo(intf string) (DrvInfo, error) { i, err := e.getDriverInfo(intf) if err != nil { return DrvInfo{}, err } drvInfo := DrvInfo{ Cmd: i.cmd, Driver: goString(i.driver[:]), Version: goString(i.version[:]), FwVersion: goString(i.fw_version[:]), BusInfo: goString(i.bus_info[:]), EromVersion: goString(i.erom_version[:]), Reserved2: goString(i.reserved2[:]), NPrivFlags: i.n_priv_flags, NStats: i.n_stats, TestInfoLen: i.testinfo_len, EedumpLen: i.eedump_len, RegdumpLen: i.regdump_len, } return drvInfo, nil } // GetChannels returns the number of channels for the given interface name. func (e *Ethtool) GetChannels(intf string) (Channels, error) { channels, err := e.getChannels(intf) if err != nil { return Channels{}, err } return channels, nil } // SetChannels sets the number of channels for the given interface name and // returns the new number of channels. func (e *Ethtool) SetChannels(intf string, channels Channels) (Channels, error) { channels, err := e.setChannels(intf, channels) if err != nil { return Channels{}, err } return channels, nil } // GetCoalesce returns the coalesce config for the given interface name. func (e *Ethtool) GetCoalesce(intf string) (Coalesce, error) { coalesce, err := e.getCoalesce(intf) if err != nil { return Coalesce{}, err } return coalesce, nil } // GetTimestampingInformation returns the PTP timestamping information for the given interface name. func (e *Ethtool) GetTimestampingInformation(intf string) (TimestampingInformation, error) { ts, err := e.getTimestampingInformation(intf) if err != nil { return TimestampingInformation{}, err } return ts, nil } // PermAddr returns permanent address of the given interface name. func (e *Ethtool) PermAddr(intf string) (string, error) { permAddr, err := e.getPermAddr(intf) if err != nil { return "", err } if permAddr.data[0] == 0 && permAddr.data[1] == 0 && permAddr.data[2] == 0 && permAddr.data[3] == 0 && permAddr.data[4] == 0 && permAddr.data[5] == 0 { return "", nil } return fmt.Sprintf("%x:%x:%x:%x:%x:%x", permAddr.data[0:1], permAddr.data[1:2], permAddr.data[2:3], permAddr.data[3:4], permAddr.data[4:5], permAddr.data[5:6], ), nil } func (e *Ethtool) ioctl(intf string, data uintptr) error { var name [IFNAMSIZ]byte copy(name[:], []byte(intf)) ifr := ifreq{ ifr_name: name, ifr_data: data, } _, _, ep := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return ep } return nil } func (e *Ethtool) getDriverInfo(intf string) (ethtoolDrvInfo, error) { drvinfo := ethtoolDrvInfo{ cmd: ETHTOOL_GDRVINFO, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&drvinfo))); err != nil { return ethtoolDrvInfo{}, err } return drvinfo, nil } func (e *Ethtool) getChannels(intf string) (Channels, error) { channels := Channels{ Cmd: ETHTOOL_GCHANNELS, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&channels))); err != nil { return Channels{}, err } return channels, nil } func (e *Ethtool) setChannels(intf string, channels Channels) (Channels, error) { channels.Cmd = ETHTOOL_SCHANNELS if err := e.ioctl(intf, uintptr(unsafe.Pointer(&channels))); err != nil { return Channels{}, err } return channels, nil } func (e *Ethtool) getCoalesce(intf string) (Coalesce, error) { coalesce := Coalesce{ Cmd: ETHTOOL_GCOALESCE, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&coalesce))); err != nil { return Coalesce{}, err } return coalesce, nil } func (e *Ethtool) getTimestampingInformation(intf string) (TimestampingInformation, error) { ts := TimestampingInformation{ Cmd: ETHTOOL_GET_TS_INFO, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ts))); err != nil { return TimestampingInformation{}, err } return ts, nil } func (e *Ethtool) getPermAddr(intf string) (ethtoolPermAddr, error) { permAddr := ethtoolPermAddr{ cmd: ETHTOOL_GPERMADDR, size: PERMADDR_LEN, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&permAddr))); err != nil { return ethtoolPermAddr{}, err } return permAddr, nil } func (e *Ethtool) getModuleEeprom(intf string) (ethtoolEeprom, ethtoolModInfo, error) { modInfo := ethtoolModInfo{ cmd: ETHTOOL_GMODULEINFO, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&modInfo))); err != nil { return ethtoolEeprom{}, ethtoolModInfo{}, err } eeprom := ethtoolEeprom{ cmd: ETHTOOL_GMODULEEEPROM, len: modInfo.eeprom_len, offset: 0, } if modInfo.eeprom_len > EEPROM_LEN { return ethtoolEeprom{}, ethtoolModInfo{}, fmt.Errorf("eeprom size: %d is larger than buffer size: %d", modInfo.eeprom_len, EEPROM_LEN) } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&eeprom))); err != nil { return ethtoolEeprom{}, ethtoolModInfo{}, err } return eeprom, modInfo, nil } func isFeatureBitSet(blocks [MAX_FEATURE_BLOCKS]ethtoolGetFeaturesBlock, index uint) bool { return (blocks)[index/32].active&(1<<(index%32)) != 0 } func setFeatureBit(blocks *[MAX_FEATURE_BLOCKS]ethtoolSetFeaturesBlock, index uint, value bool) { blockIndex, bitIndex := index/32, index%32 blocks[blockIndex].valid |= 1 << bitIndex if value { blocks[blockIndex].requested |= 1 << bitIndex } else { blocks[blockIndex].requested &= ^(1 << bitIndex) } } // FeatureNames shows supported features by their name. func (e *Ethtool) FeatureNames(intf string) (map[string]uint, error) { ssetInfo := ethtoolSsetInfo{ cmd: ETHTOOL_GSSET_INFO, sset_mask: 1 << ETH_SS_FEATURES, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&ssetInfo))); err != nil { return nil, err } length := uint32(ssetInfo.data) if length == 0 { return map[string]uint{}, nil } else if length > MAX_GSTRINGS { return nil, fmt.Errorf("ethtool currently doesn't support more than %d entries, received %d", MAX_GSTRINGS, length) } gstrings := ethtoolGStrings{ cmd: ETHTOOL_GSTRINGS, string_set: ETH_SS_FEATURES, len: length, data: [MAX_GSTRINGS * ETH_GSTRING_LEN]byte{}, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&gstrings))); err != nil { return nil, err } var result = make(map[string]uint) for i := 0; i != int(length); i++ { b := gstrings.data[i*ETH_GSTRING_LEN : i*ETH_GSTRING_LEN+ETH_GSTRING_LEN] key := goString(b) if key != "" { result[key] = uint(i) } } return result, nil } // Features retrieves features of the given interface name. func (e *Ethtool) Features(intf string) (map[string]bool, error) { names, err := e.FeatureNames(intf) if err != nil { return nil, err } length := uint32(len(names)) if length == 0 { return map[string]bool{}, nil } features := ethtoolGfeatures{ cmd: ETHTOOL_GFEATURES, size: (length + 32 - 1) / 32, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&features))); err != nil { return nil, err } var result = make(map[string]bool, length) for key, index := range names { result[key] = isFeatureBitSet(features.blocks, index) } return result, nil } // Change requests a change in the given device's features. func (e *Ethtool) Change(intf string, config map[string]bool) error { names, err := e.FeatureNames(intf) if err != nil { return err } length := uint32(len(names)) features := ethtoolSfeatures{ cmd: ETHTOOL_SFEATURES, size: (length + 32 - 1) / 32, } for key, value := range config { if index, ok := names[key]; ok { setFeatureBit(&features.blocks, index, value) } else { return fmt.Errorf("unsupported feature %q", key) } } return e.ioctl(intf, uintptr(unsafe.Pointer(&features))) } // Get state of a link. func (e *Ethtool) LinkState(intf string) (uint32, error) { x := ethtoolLink{ cmd: ETHTOOL_GLINK, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&x))); err != nil { return 0, err } return x.data, nil } // Stats retrieves stats of the given interface name. func (e *Ethtool) Stats(intf string) (map[string]uint64, error) { drvinfo := ethtoolDrvInfo{ cmd: ETHTOOL_GDRVINFO, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&drvinfo))); err != nil { return nil, err } if drvinfo.n_stats*ETH_GSTRING_LEN > MAX_GSTRINGS*ETH_GSTRING_LEN { return nil, fmt.Errorf("ethtool currently doesn't support more than %d entries, received %d", MAX_GSTRINGS, drvinfo.n_stats) } gstrings := ethtoolGStrings{ cmd: ETHTOOL_GSTRINGS, string_set: ETH_SS_STATS, len: drvinfo.n_stats, data: [MAX_GSTRINGS * ETH_GSTRING_LEN]byte{}, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&gstrings))); err != nil { return nil, err } stats := ethtoolStats{ cmd: ETHTOOL_GSTATS, n_stats: drvinfo.n_stats, data: [MAX_GSTRINGS]uint64{}, } if err := e.ioctl(intf, uintptr(unsafe.Pointer(&stats))); err != nil { return nil, err } var result = make(map[string]uint64) for i := 0; i != int(drvinfo.n_stats); i++ { b := gstrings.data[i*ETH_GSTRING_LEN : i*ETH_GSTRING_LEN+ETH_GSTRING_LEN] strEnd := strings.Index(string(b), "\x00") if strEnd == -1 { strEnd = ETH_GSTRING_LEN } key := string(b[:strEnd]) if len(key) != 0 { result[key] = stats.data[i] } } return result, nil } // Close closes the ethool handler func (e *Ethtool) Close() { unix.Close(e.fd) } // NewEthtool returns a new ethtool handler func NewEthtool() (*Ethtool, error) { fd, err := unix.Socket(unix.AF_INET, unix.SOCK_DGRAM, unix.IPPROTO_IP) if err != nil { return nil, err } return &Ethtool{ fd: int(fd), }, nil } // BusInfo returns bus information of the given interface name. func BusInfo(intf string) (string, error) { e, err := NewEthtool() if err != nil { return "", err } defer e.Close() return e.BusInfo(intf) } // DriverName returns the driver name of the given interface name. func DriverName(intf string) (string, error) { e, err := NewEthtool() if err != nil { return "", err } defer e.Close() return e.DriverName(intf) } // Stats retrieves stats of the given interface name. func Stats(intf string) (map[string]uint64, error) { e, err := NewEthtool() if err != nil { return nil, err } defer e.Close() return e.Stats(intf) } // PermAddr returns permanent address of the given interface name. func PermAddr(intf string) (string, error) { e, err := NewEthtool() if err != nil { return "", err } defer e.Close() return e.PermAddr(intf) } ethtool-0.3.0/ethtool_cmd.go000066400000000000000000000122311440246326600160260ustar00rootroot00000000000000/* * * 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 ( "math" "reflect" "unsafe" "golang.org/x/sys/unix" ) 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 := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return 0, ep } var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) | (uint32(ecmd.Speed) & 0xffff) if speedval == math.MaxUint16 { speedval = math.MaxUint32 } 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 := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return 0, unix.Errno(ep) } var speedval uint32 = (uint32(ecmd.Speed_hi) << 16) | (uint32(ecmd.Speed) & 0xffff) if speedval == math.MaxUint16 { speedval = math.MaxUint32 } 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 := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return nil, 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) } ethtool-0.3.0/ethtool_cmd_test.go000066400000000000000000000031251440246326600170670ustar00rootroot00000000000000/* * * 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 import ( "net" "testing" ) func TestCmdGet(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success success := false for _, intf := range intfs { var ecmd EthtoolCmd _, err := ecmd.CmdGet(intf.Name) if err == nil { success = true } } if !success { t.Fatal("Unable to get settings from any interface of this system.") } } func TestCmdGetMapped(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success success := false for _, intf := range intfs { _, err := CmdGetMapped(intf.Name) if err == nil { success = true } } if !success { t.Fatal("Unable to get settings map from any interface of this system.") } } ethtool-0.3.0/ethtool_msglvl.go000066400000000000000000000055421440246326600165760ustar00rootroot00000000000000/* * * 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 ( "unsafe" "golang.org/x/sys/unix" ) 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 := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return 0, 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 := unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return 0, 0, ep } readval := edata.data edata.cmd = ETHTOOL_SMSGLVL edata.data = valset _, _, ep = unix.Syscall(unix.SYS_IOCTL, uintptr(e.fd), SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr))) if ep != 0 { return 0, 0, 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) } ethtool-0.3.0/ethtool_msglvl_test.go000066400000000000000000000026551440246326600176370ustar00rootroot00000000000000/* * * 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 import ( "fmt" "net" "os" "testing" ) func TestMsglvlGet(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success success := false for _, intf := range intfs { _, err := MsglvlGet(intf.Name) if err != nil { continue } success = true } // fake success if run on travis if os.Getenv("TRAVIS") == "true" { fmt.Println("testing on travis.") if !success { fmt.Println("testing msglvl force success on travis.") success = true } } if !success { t.Fatal("Unable to get msglvl from any interface of this system.") } } ethtool-0.3.0/ethtool_test.go000066400000000000000000000045021440246326600162440ustar00rootroot00000000000000/* * * 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 import ( "net" "testing" ) func TestGoString(t *testing.T) { testcases := map[string][]byte{ "": {}, "0.5-4": {48, 46, 53, 45, 52, 0, 0, 0}, "1.6": {49, 46, 54, 0, 46, 48, 45, 50, 50, 45, 103, 101, 110, 101, 114, 105, 99}, } for want, s := range testcases { got := goString(s[:]) if got != want { t.Errorf("String conversion failed, got: %s, want: %s.", got, want) } } } func TestStats(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success empty := true for _, intf := range intfs { stats, err := Stats(intf.Name) if err != nil { continue } for range stats { empty = false break } } if empty { t.Fatal("Unable to retrieve stats from any interface of this system.") } } func TestDriverName(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success success := false for _, intf := range intfs { _, err := DriverName(intf.Name) if err == nil { success = true } } if !success { t.Fatal("Unable to retrieve driver from any interface of this system.") } } func TestBusInfo(t *testing.T) { intfs, err := net.Interfaces() if err != nil { t.Fatal(err) } // we expected to have at least one success success := false for _, intf := range intfs { _, err := BusInfo(intf.Name) if err == nil { success = true } } if !success { t.Fatal("Unable to retrieve bus info from any interface of this system.") } } ethtool-0.3.0/example/000077500000000000000000000000001440246326600146325ustar00rootroot00000000000000ethtool-0.3.0/example/Makefile000066400000000000000000000001031440246326600162640ustar00rootroot00000000000000all: build build: CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build ethtool-0.3.0/example/main.go000066400000000000000000000027701440246326600161130ustar00rootroot00000000000000package main import ( "flag" "fmt" "log" "github.com/safchain/ethtool" ) func main() { name := flag.String("interface", "", "Interface name") flag.Parse() if *name == "" { log.Fatal("interface is not specified") } e, err := ethtool.NewEthtool() if err != nil { panic(err.Error()) } defer e.Close() features, err := e.Features(*name) if err != nil { panic(err.Error()) } fmt.Printf("features: %+v\n", features) stats, err := e.Stats(*name) if err != nil { panic(err.Error()) } fmt.Printf("stats: %+v\n", stats) busInfo, err := e.BusInfo(*name) if err != nil { panic(err.Error()) } fmt.Printf("bus info: %+v\n", busInfo) drvr, err := e.DriverName(*name) if err != nil { panic(err.Error()) } fmt.Printf("driver name: %+v\n", drvr) cmdGet, err := e.CmdGetMapped(*name) if err != nil { panic(err.Error()) } fmt.Printf("cmd get: %+v\n", cmdGet) msgLvlGet, err := e.MsglvlGet(*name) if err != nil { panic(err.Error()) } fmt.Printf("msg lvl get: %+v\n", msgLvlGet) drvInfo, err := e.DriverInfo(*name) if err != nil { panic(err.Error()) } fmt.Printf("drvrinfo: %+v\n", drvInfo) permAddr, err := e.PermAddr(*name) if err != nil { panic(err.Error()) } fmt.Printf("permaddr: %+v\n", permAddr) ts, err := e.GetTimestampingInformation(*name) if err != nil { panic(err.Error()) } fmt.Printf("timestamping information: %+v\n", ts) eeprom, err := e.ModuleEepromHex(*name) if err != nil { panic(err.Error()) } fmt.Printf("module eeprom: %+v\n", eeprom) } ethtool-0.3.0/go.mod000066400000000000000000000001151440246326600143020ustar00rootroot00000000000000module github.com/safchain/ethtool go 1.16 require golang.org/x/sys v0.6.0 ethtool-0.3.0/go.sum000066400000000000000000000002271440246326600143330ustar00rootroot00000000000000golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ= golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=