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732 lines
18 KiB
Go
732 lines
18 KiB
Go
// SPDX-License-Identifier: BSD-3-Clause
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//go:build windows
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package net
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"os"
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"syscall"
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"unsafe"
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"golang.org/x/sys/windows"
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"github.com/shirou/gopsutil/v4/internal/common"
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)
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var (
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modiphlpapi = windows.NewLazySystemDLL("iphlpapi.dll")
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procGetExtendedTCPTable = modiphlpapi.NewProc("GetExtendedTcpTable")
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procGetExtendedUDPTable = modiphlpapi.NewProc("GetExtendedUdpTable")
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procGetIfEntry2 = modiphlpapi.NewProc("GetIfEntry2")
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)
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const (
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TCPTableBasicListener = iota
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TCPTableBasicConnections
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TCPTableBasicAll
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TCPTableOwnerPIDListener
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TCPTableOwnerPIDConnections
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TCPTableOwnerPIDAll
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TCPTableOwnerModuleListener
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TCPTableOwnerModuleConnections
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TCPTableOwnerModuleAll
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)
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type netConnectionKindType struct {
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family uint32
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sockType uint32
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filename string
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}
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var kindTCP4 = netConnectionKindType{
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family: syscall.AF_INET,
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sockType: syscall.SOCK_STREAM,
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filename: "tcp",
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}
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var kindTCP6 = netConnectionKindType{
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family: syscall.AF_INET6,
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sockType: syscall.SOCK_STREAM,
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filename: "tcp6",
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}
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var kindUDP4 = netConnectionKindType{
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family: syscall.AF_INET,
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sockType: syscall.SOCK_DGRAM,
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filename: "udp",
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}
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var kindUDP6 = netConnectionKindType{
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family: syscall.AF_INET6,
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sockType: syscall.SOCK_DGRAM,
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filename: "udp6",
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}
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var netConnectionKindMap = map[string][]netConnectionKindType{
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"all": {kindTCP4, kindTCP6, kindUDP4, kindUDP6},
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"tcp": {kindTCP4, kindTCP6},
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"tcp4": {kindTCP4},
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"tcp6": {kindTCP6},
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"udp": {kindUDP4, kindUDP6},
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"udp4": {kindUDP4},
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"udp6": {kindUDP6},
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"inet": {kindTCP4, kindTCP6, kindUDP4, kindUDP6},
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"inet4": {kindTCP4, kindUDP4},
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"inet6": {kindTCP6, kindUDP6},
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}
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// https://github.com/microsoft/ethr/blob/aecdaf923970e5a9b4c461b4e2e3963d781ad2cc/plt_windows.go#L114-L170
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type guid struct {
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Data1 uint32
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Data2 uint16
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Data3 uint16
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Data4 [8]byte
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}
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const (
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maxStringSize = 256
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maxPhysAddressLength = 32
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pad0for64_4for32 = 0
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)
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type mibIfRow2 struct {
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InterfaceLuid uint64
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InterfaceIndex uint32
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InterfaceGuid guid
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Alias [maxStringSize + 1]uint16
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Description [maxStringSize + 1]uint16
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PhysicalAddressLength uint32
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PhysicalAddress [maxPhysAddressLength]uint8
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PermanentPhysicalAddress [maxPhysAddressLength]uint8
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Mtu uint32
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Type uint32
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TunnelType uint32
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MediaType uint32
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PhysicalMediumType uint32
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AccessType uint32
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DirectionType uint32
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InterfaceAndOperStatusFlags uint32
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OperStatus uint32
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AdminStatus uint32
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MediaConnectState uint32
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NetworkGuid guid
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ConnectionType uint32
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padding1 [pad0for64_4for32]byte
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TransmitLinkSpeed uint64
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ReceiveLinkSpeed uint64
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InOctets uint64
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InUcastPkts uint64
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InNUcastPkts uint64
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InDiscards uint64
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InErrors uint64
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InUnknownProtos uint64
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InUcastOctets uint64
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InMulticastOctets uint64
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InBroadcastOctets uint64
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OutOctets uint64
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OutUcastPkts uint64
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OutNUcastPkts uint64
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OutDiscards uint64
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OutErrors uint64
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OutUcastOctets uint64
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OutMulticastOctets uint64
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OutBroadcastOctets uint64
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OutQLen uint64
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}
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func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
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ifs, err := net.Interfaces()
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if err != nil {
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return nil, err
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}
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var counters []IOCountersStat
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err = procGetIfEntry2.Find()
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if err == nil { // Vista+, uint64 values (issue#693)
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for _, ifi := range ifs {
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c := IOCountersStat{
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Name: ifi.Name,
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}
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row := mibIfRow2{InterfaceIndex: uint32(ifi.Index)}
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ret, _, err := procGetIfEntry2.Call(uintptr(unsafe.Pointer(&row)))
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if ret != 0 {
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return nil, os.NewSyscallError("GetIfEntry2", err)
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}
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c.BytesSent = uint64(row.OutOctets)
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c.BytesRecv = uint64(row.InOctets)
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c.PacketsSent = uint64(row.OutUcastPkts)
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c.PacketsRecv = uint64(row.InUcastPkts)
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c.Errin = uint64(row.InErrors)
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c.Errout = uint64(row.OutErrors)
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c.Dropin = uint64(row.InDiscards)
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c.Dropout = uint64(row.OutDiscards)
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counters = append(counters, c)
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}
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} else { // WinXP fallback, uint32 values
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for _, ifi := range ifs {
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c := IOCountersStat{
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Name: ifi.Name,
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}
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row := windows.MibIfRow{Index: uint32(ifi.Index)}
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err = windows.GetIfEntry(&row)
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if err != nil {
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return nil, os.NewSyscallError("GetIfEntry", err)
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}
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c.BytesSent = uint64(row.OutOctets)
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c.BytesRecv = uint64(row.InOctets)
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c.PacketsSent = uint64(row.OutUcastPkts)
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c.PacketsRecv = uint64(row.InUcastPkts)
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c.Errin = uint64(row.InErrors)
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c.Errout = uint64(row.OutErrors)
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c.Dropin = uint64(row.InDiscards)
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c.Dropout = uint64(row.OutDiscards)
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counters = append(counters, c)
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}
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}
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if !pernic {
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return getIOCountersAll(counters)
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}
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return counters, nil
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}
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func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
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return IOCounters(pernic) //nolint:contextcheck //FIXME
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}
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func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
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return ConnectionsPidWithContext(ctx, kind, 0)
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}
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func ConnectionsPidWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
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tmap, ok := netConnectionKindMap[kind]
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if !ok {
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return nil, fmt.Errorf("invalid kind, %s", kind)
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}
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return getProcInet(tmap, pid)
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}
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func getProcInet(kinds []netConnectionKindType, pid int32) ([]ConnectionStat, error) {
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stats := make([]ConnectionStat, 0)
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for _, kind := range kinds {
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s, err := getNetStatWithKind(kind)
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if err != nil {
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continue
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}
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if pid == 0 {
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stats = append(stats, s...)
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} else {
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for _, ns := range s {
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if ns.Pid != pid {
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continue
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}
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stats = append(stats, ns)
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}
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}
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}
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return stats, nil
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}
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func getNetStatWithKind(kindType netConnectionKindType) ([]ConnectionStat, error) {
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if kindType.filename == "" {
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return nil, errors.New("kind filename must be required")
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}
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switch kindType.filename {
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case kindTCP4.filename:
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return getTCPConnections(kindTCP4.family)
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case kindTCP6.filename:
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return getTCPConnections(kindTCP6.family)
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case kindUDP4.filename:
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return getUDPConnections(kindUDP4.family)
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case kindUDP6.filename:
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return getUDPConnections(kindUDP6.family)
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}
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return nil, fmt.Errorf("invalid kind filename, %s", kindType.filename)
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}
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// Deprecated: use process.PidsWithContext instead
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func PidsWithContext(ctx context.Context) ([]int32, error) {
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return nil, common.ErrNotImplementedError
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}
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func ConnectionsMaxWithContext(ctx context.Context, kind string, maxConn int) ([]ConnectionStat, error) {
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return ConnectionsPidMaxWithContext(ctx, kind, 0, maxConn)
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}
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func ConnectionsWithoutUidsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
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return ConnectionsMaxWithoutUidsWithContext(ctx, kind, 0)
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}
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func ConnectionsMaxWithoutUidsWithContext(ctx context.Context, kind string, maxConn int) ([]ConnectionStat, error) {
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return ConnectionsPidMaxWithoutUidsWithContext(ctx, kind, 0, maxConn)
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}
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func ConnectionsPidWithoutUidsWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
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return ConnectionsPidMaxWithoutUidsWithContext(ctx, kind, pid, 0)
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}
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func ConnectionsPidMaxWithContext(ctx context.Context, kind string, pid int32, maxConn int) ([]ConnectionStat, error) {
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return connectionsPidMaxWithoutUidsWithContext(ctx, kind, pid, maxConn, false)
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}
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func ConnectionsPidMaxWithoutUidsWithContext(ctx context.Context, kind string, pid int32, maxConn int) ([]ConnectionStat, error) {
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return connectionsPidMaxWithoutUidsWithContext(ctx, kind, pid, maxConn, true)
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}
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func connectionsPidMaxWithoutUidsWithContext(_ context.Context, _ string, _ int32, _ int, _ bool) ([]ConnectionStat, error) {
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return []ConnectionStat{}, common.ErrNotImplementedError
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}
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func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func ConntrackStatsWithContext(ctx context.Context, percpu bool) ([]ConntrackStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
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return nil, common.ErrNotImplementedError
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}
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func getTableUintptr(family uint32, buf []byte) uintptr {
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var (
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pmibTCPTable pmibTCPTableOwnerPidAll
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pmibTCP6Table pmibTCP6TableOwnerPidAll
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p uintptr
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)
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switch family {
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case kindTCP4.family:
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if len(buf) > 0 {
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pmibTCPTable = (*mibTCPTableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibTCPTable))
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} else {
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p = uintptr(unsafe.Pointer(pmibTCPTable))
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}
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case kindTCP6.family:
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if len(buf) > 0 {
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pmibTCP6Table = (*mibTCP6TableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibTCP6Table))
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} else {
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p = uintptr(unsafe.Pointer(pmibTCP6Table))
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}
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}
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return p
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}
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func getTableInfo(filename string, table any) (index, step, length int) {
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switch filename {
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case kindTCP4.filename:
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index = int(unsafe.Sizeof(table.(pmibTCPTableOwnerPidAll).DwNumEntries))
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step = int(unsafe.Sizeof(table.(pmibTCPTableOwnerPidAll).Table))
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length = int(table.(pmibTCPTableOwnerPidAll).DwNumEntries)
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case kindTCP6.filename:
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index = int(unsafe.Sizeof(table.(pmibTCP6TableOwnerPidAll).DwNumEntries))
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step = int(unsafe.Sizeof(table.(pmibTCP6TableOwnerPidAll).Table))
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length = int(table.(pmibTCP6TableOwnerPidAll).DwNumEntries)
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case kindUDP4.filename:
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index = int(unsafe.Sizeof(table.(pmibUDPTableOwnerPid).DwNumEntries))
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step = int(unsafe.Sizeof(table.(pmibUDPTableOwnerPid).Table))
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length = int(table.(pmibUDPTableOwnerPid).DwNumEntries)
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case kindUDP6.filename:
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index = int(unsafe.Sizeof(table.(pmibUDP6TableOwnerPid).DwNumEntries))
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step = int(unsafe.Sizeof(table.(pmibUDP6TableOwnerPid).Table))
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length = int(table.(pmibUDP6TableOwnerPid).DwNumEntries)
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}
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return
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}
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func getTCPConnections(family uint32) ([]ConnectionStat, error) {
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var (
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p uintptr
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buf []byte
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size uint32
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pmibTCPTable pmibTCPTableOwnerPidAll
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pmibTCP6Table pmibTCP6TableOwnerPidAll
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)
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if family == 0 {
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return nil, errors.New("faimly must be required")
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}
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for {
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switch family {
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case kindTCP4.family:
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if len(buf) > 0 {
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pmibTCPTable = (*mibTCPTableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibTCPTable))
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} else {
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p = uintptr(unsafe.Pointer(pmibTCPTable))
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}
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case kindTCP6.family:
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if len(buf) > 0 {
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pmibTCP6Table = (*mibTCP6TableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibTCP6Table))
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} else {
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p = uintptr(unsafe.Pointer(pmibTCP6Table))
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}
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}
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err := getExtendedTcpTable(p,
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&size,
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true,
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family,
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tcpTableOwnerPidAll,
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0)
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if err == nil {
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break
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}
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if !errors.Is(err, windows.ERROR_INSUFFICIENT_BUFFER) {
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return nil, err
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}
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buf = make([]byte, size)
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}
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var (
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index, step int
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length int
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)
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stats := make([]ConnectionStat, 0)
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switch family {
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case kindTCP4.family:
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index, step, length = getTableInfo(kindTCP4.filename, pmibTCPTable)
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case kindTCP6.family:
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index, step, length = getTableInfo(kindTCP6.filename, pmibTCP6Table)
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}
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if length == 0 {
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return nil, nil
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}
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for i := 0; i < length; i++ {
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switch family {
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case kindTCP4.family:
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mibs := (*mibTCPRowOwnerPid)(unsafe.Pointer(&buf[index]))
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ns := mibs.convertToConnectionStat()
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stats = append(stats, ns)
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case kindTCP6.family:
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mibs := (*mibTCP6RowOwnerPid)(unsafe.Pointer(&buf[index]))
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ns := mibs.convertToConnectionStat()
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stats = append(stats, ns)
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}
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index += step
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}
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return stats, nil
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}
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func getUDPConnections(family uint32) ([]ConnectionStat, error) {
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var (
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p uintptr
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buf []byte
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size uint32
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pmibUDPTable pmibUDPTableOwnerPid
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pmibUDP6Table pmibUDP6TableOwnerPid
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)
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if family == 0 {
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return nil, errors.New("faimly must be required")
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}
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for {
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switch family {
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case kindUDP4.family:
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if len(buf) > 0 {
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pmibUDPTable = (*mibUDPTableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibUDPTable))
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} else {
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p = uintptr(unsafe.Pointer(pmibUDPTable))
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}
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case kindUDP6.family:
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if len(buf) > 0 {
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pmibUDP6Table = (*mibUDP6TableOwnerPid)(unsafe.Pointer(&buf[0]))
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p = uintptr(unsafe.Pointer(pmibUDP6Table))
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} else {
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p = uintptr(unsafe.Pointer(pmibUDP6Table))
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}
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}
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err := getExtendedUdpTable(
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p,
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&size,
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true,
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family,
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udpTableOwnerPid,
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0,
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)
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if err == nil {
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break
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}
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if !errors.Is(err, windows.ERROR_INSUFFICIENT_BUFFER) {
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return nil, err
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}
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buf = make([]byte, size)
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}
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var index, step, length int
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stats := make([]ConnectionStat, 0)
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switch family {
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case kindUDP4.family:
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index, step, length = getTableInfo(kindUDP4.filename, pmibUDPTable)
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case kindUDP6.family:
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index, step, length = getTableInfo(kindUDP6.filename, pmibUDP6Table)
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}
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if length == 0 {
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return nil, nil
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}
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for i := 0; i < length; i++ {
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switch family {
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case kindUDP4.family:
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mibs := (*mibUDPRowOwnerPid)(unsafe.Pointer(&buf[index]))
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ns := mibs.convertToConnectionStat()
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stats = append(stats, ns)
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case kindUDP6.family:
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mibs := (*mibUDP6RowOwnerPid)(unsafe.Pointer(&buf[index]))
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ns := mibs.convertToConnectionStat()
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stats = append(stats, ns)
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}
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index += step
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}
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return stats, nil
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}
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// tcpStatuses https://msdn.microsoft.com/en-us/library/windows/desktop/bb485761(v=vs.85).aspx
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var tcpStatuses = map[mibTCPState]string{
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1: "CLOSED",
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2: "LISTEN",
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3: "SYN_SENT",
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4: "SYN_RECEIVED",
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5: "ESTABLISHED",
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6: "FIN_WAIT_1",
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7: "FIN_WAIT_2",
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8: "CLOSE_WAIT",
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9: "CLOSING",
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10: "LAST_ACK",
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11: "TIME_WAIT",
|
|
12: "DELETE",
|
|
}
|
|
|
|
func getExtendedTcpTable(pTcpTable uintptr, pdwSize *uint32, bOrder bool, ulAf uint32, tableClass tcpTableClass, reserved uint32) (errcode error) {
|
|
r1, _, _ := syscall.Syscall6(procGetExtendedTCPTable.Addr(), 6, pTcpTable, uintptr(unsafe.Pointer(pdwSize)), getUintptrFromBool(bOrder), uintptr(ulAf), uintptr(tableClass), uintptr(reserved))
|
|
if r1 != 0 {
|
|
errcode = syscall.Errno(r1)
|
|
}
|
|
return
|
|
}
|
|
|
|
func getExtendedUdpTable(pUdpTable uintptr, pdwSize *uint32, bOrder bool, ulAf uint32, tableClass udpTableClass, reserved uint32) (errcode error) {
|
|
r1, _, _ := syscall.Syscall6(procGetExtendedUDPTable.Addr(), 6, pUdpTable, uintptr(unsafe.Pointer(pdwSize)), getUintptrFromBool(bOrder), uintptr(ulAf), uintptr(tableClass), uintptr(reserved))
|
|
if r1 != 0 {
|
|
errcode = syscall.Errno(r1)
|
|
}
|
|
return
|
|
}
|
|
|
|
func getUintptrFromBool(b bool) uintptr {
|
|
if b {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
const anySize = 1
|
|
|
|
// type MIB_TCP_STATE int32
|
|
type mibTCPState int32
|
|
|
|
type tcpTableClass int32
|
|
|
|
const (
|
|
tcpTableBasicListener tcpTableClass = iota
|
|
tcpTableBasicConnections
|
|
tcpTableBasicAll
|
|
tcpTableOwnerPidListener
|
|
tcpTableOwnerPidConnections
|
|
tcpTableOwnerPidAll
|
|
tcpTableOwnerModuleListener
|
|
tcpTableOwnerModuleConnections
|
|
tcpTableOwnerModuleAll
|
|
)
|
|
|
|
type udpTableClass int32
|
|
|
|
const (
|
|
udpTableBasic udpTableClass = iota
|
|
udpTableOwnerPid
|
|
udpTableOwnerModule
|
|
)
|
|
|
|
// TCP
|
|
|
|
type mibTCPRowOwnerPid struct {
|
|
DwState uint32
|
|
DwLocalAddr uint32
|
|
DwLocalPort uint32
|
|
DwRemoteAddr uint32
|
|
DwRemotePort uint32
|
|
DwOwningPid uint32
|
|
}
|
|
|
|
func (m *mibTCPRowOwnerPid) convertToConnectionStat() ConnectionStat {
|
|
ns := ConnectionStat{
|
|
Family: kindTCP4.family,
|
|
Type: kindTCP4.sockType,
|
|
Laddr: Addr{
|
|
IP: parseIPv4HexString(m.DwLocalAddr),
|
|
Port: uint32(decodePort(m.DwLocalPort)),
|
|
},
|
|
Raddr: Addr{
|
|
IP: parseIPv4HexString(m.DwRemoteAddr),
|
|
Port: uint32(decodePort(m.DwRemotePort)),
|
|
},
|
|
Pid: int32(m.DwOwningPid),
|
|
Status: tcpStatuses[mibTCPState(m.DwState)],
|
|
}
|
|
|
|
return ns
|
|
}
|
|
|
|
type mibTCPTableOwnerPid struct {
|
|
DwNumEntries uint32
|
|
Table [anySize]mibTCPRowOwnerPid
|
|
}
|
|
|
|
type mibTCP6RowOwnerPid struct {
|
|
UcLocalAddr [16]byte
|
|
DwLocalScopeId uint32
|
|
DwLocalPort uint32
|
|
UcRemoteAddr [16]byte
|
|
DwRemoteScopeId uint32
|
|
DwRemotePort uint32
|
|
DwState uint32
|
|
DwOwningPid uint32
|
|
}
|
|
|
|
func (m *mibTCP6RowOwnerPid) convertToConnectionStat() ConnectionStat {
|
|
ns := ConnectionStat{
|
|
Family: kindTCP6.family,
|
|
Type: kindTCP6.sockType,
|
|
Laddr: Addr{
|
|
IP: parseIPv6HexString(m.UcLocalAddr),
|
|
Port: uint32(decodePort(m.DwLocalPort)),
|
|
},
|
|
Raddr: Addr{
|
|
IP: parseIPv6HexString(m.UcRemoteAddr),
|
|
Port: uint32(decodePort(m.DwRemotePort)),
|
|
},
|
|
Pid: int32(m.DwOwningPid),
|
|
Status: tcpStatuses[mibTCPState(m.DwState)],
|
|
}
|
|
|
|
return ns
|
|
}
|
|
|
|
type mibTCP6TableOwnerPid struct {
|
|
DwNumEntries uint32
|
|
Table [anySize]mibTCP6RowOwnerPid
|
|
}
|
|
|
|
type (
|
|
pmibTCPTableOwnerPidAll *mibTCPTableOwnerPid
|
|
pmibTCP6TableOwnerPidAll *mibTCP6TableOwnerPid
|
|
)
|
|
|
|
// UDP
|
|
|
|
type mibUDPRowOwnerPid struct {
|
|
DwLocalAddr uint32
|
|
DwLocalPort uint32
|
|
DwOwningPid uint32
|
|
}
|
|
|
|
func (m *mibUDPRowOwnerPid) convertToConnectionStat() ConnectionStat {
|
|
ns := ConnectionStat{
|
|
Family: kindUDP4.family,
|
|
Type: kindUDP4.sockType,
|
|
Laddr: Addr{
|
|
IP: parseIPv4HexString(m.DwLocalAddr),
|
|
Port: uint32(decodePort(m.DwLocalPort)),
|
|
},
|
|
Pid: int32(m.DwOwningPid),
|
|
}
|
|
|
|
return ns
|
|
}
|
|
|
|
type mibUDPTableOwnerPid struct {
|
|
DwNumEntries uint32
|
|
Table [anySize]mibUDPRowOwnerPid
|
|
}
|
|
|
|
type mibUDP6RowOwnerPid struct {
|
|
UcLocalAddr [16]byte
|
|
DwLocalScopeId uint32
|
|
DwLocalPort uint32
|
|
DwOwningPid uint32
|
|
}
|
|
|
|
func (m *mibUDP6RowOwnerPid) convertToConnectionStat() ConnectionStat {
|
|
ns := ConnectionStat{
|
|
Family: kindUDP6.family,
|
|
Type: kindUDP6.sockType,
|
|
Laddr: Addr{
|
|
IP: parseIPv6HexString(m.UcLocalAddr),
|
|
Port: uint32(decodePort(m.DwLocalPort)),
|
|
},
|
|
Pid: int32(m.DwOwningPid),
|
|
}
|
|
|
|
return ns
|
|
}
|
|
|
|
type mibUDP6TableOwnerPid struct {
|
|
DwNumEntries uint32
|
|
Table [anySize]mibUDP6RowOwnerPid
|
|
}
|
|
|
|
type (
|
|
pmibUDPTableOwnerPid *mibUDPTableOwnerPid
|
|
pmibUDP6TableOwnerPid *mibUDP6TableOwnerPid
|
|
)
|
|
|
|
func decodePort(port uint32) uint16 {
|
|
return syscall.Ntohs(uint16(port))
|
|
}
|
|
|
|
func parseIPv4HexString(addr uint32) string {
|
|
return fmt.Sprintf("%d.%d.%d.%d", addr&255, addr>>8&255, addr>>16&255, addr>>24&255)
|
|
}
|
|
|
|
func parseIPv6HexString(addr [16]byte) string {
|
|
var ret [16]byte
|
|
for i := 0; i < 16; i++ {
|
|
ret[i] = uint8(addr[i])
|
|
}
|
|
|
|
// convert []byte to net.IP
|
|
ip := net.IP(ret[:])
|
|
return ip.String()
|
|
}
|