99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
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// +build windows
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package net
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import (
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"net"
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"os"
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"syscall"
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"unsafe"
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common "github.com/shirou/gopsutil/common"
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)
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var (
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modiphlpapi = syscall.NewLazyDLL("iphlpapi.dll")
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procGetExtendedTcpTable = modiphlpapi.NewProc("GetExtendedTcpTable")
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procGetExtendedUdpTable = modiphlpapi.NewProc("GetExtendedUdpTable")
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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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func NetIOCounters(pernic bool) ([]NetIOCountersStat, 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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ai, err := getAdapterList()
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if err != nil {
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return nil, err
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}
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var ret []NetIOCountersStat
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for _, ifi := range ifs {
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name := ifi.Name
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for ; ai != nil; ai = ai.Next {
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name = common.BytePtrToString(&ai.Description[0])
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c := NetIOCountersStat{
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Name: name,
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}
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row := syscall.MibIfRow{Index: ai.Index}
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e := syscall.GetIfEntry(&row)
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if e != nil {
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return nil, os.NewSyscallError("GetIfEntry", e)
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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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ret = append(ret, c)
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}
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}
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if pernic == false {
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return getNetIOCountersAll(ret)
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}
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return ret, nil
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}
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// Return a list of network connections opened by a process
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func NetConnections(kind string) ([]NetConnectionStat, error) {
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var ret []NetConnectionStat
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return ret, common.NotImplementedError
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}
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// borrowed from src/pkg/net/interface_windows.go
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func getAdapterList() (*syscall.IpAdapterInfo, error) {
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b := make([]byte, 1000)
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l := uint32(len(b))
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a := (*syscall.IpAdapterInfo)(unsafe.Pointer(&b[0]))
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err := syscall.GetAdaptersInfo(a, &l)
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if err == syscall.ERROR_BUFFER_OVERFLOW {
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b = make([]byte, l)
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a = (*syscall.IpAdapterInfo)(unsafe.Pointer(&b[0]))
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err = syscall.GetAdaptersInfo(a, &l)
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}
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if err != nil {
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return nil, os.NewSyscallError("GetAdaptersInfo", err)
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}
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return a, nil
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}
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