Initial commit

vendor/github.com/shirou/gopsutil/net/BUILD.bazel

@@ -0,0 +1,40 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "net.go",
+        "net_darwin.go",
+        "net_fallback.go",
+        "net_freebsd.go",
+        "net_linux.go",
+        "net_openbsd.go",
+        "net_unix.go",
+        "net_windows.go",
+    ],
+    importmap = "go-common/vendor/github.com/shirou/gopsutil/net",
+    importpath = "github.com/shirou/gopsutil/net",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//vendor/github.com/shirou/gopsutil/internal/common:go_default_library",
+    ] + select({
+        "@io_bazel_rules_go//go/platform:windows": [
+            "//vendor/golang.org/x/sys/windows:go_default_library",
+        ],
+        "//conditions:default": [],
+    }),
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/github.com/shirou/gopsutil/net/net.go

@@ -0,0 +1,259 @@
+package net
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+var invoke common.Invoker = common.Invoke{}
+
+type IOCountersStat struct {
+	Name        string `json:"name"`        // interface name
+	BytesSent   uint64 `json:"bytesSent"`   // number of bytes sent
+	BytesRecv   uint64 `json:"bytesRecv"`   // number of bytes received
+	PacketsSent uint64 `json:"packetsSent"` // number of packets sent
+	PacketsRecv uint64 `json:"packetsRecv"` // number of packets received
+	Errin       uint64 `json:"errin"`       // total number of errors while receiving
+	Errout      uint64 `json:"errout"`      // total number of errors while sending
+	Dropin      uint64 `json:"dropin"`      // total number of incoming packets which were dropped
+	Dropout     uint64 `json:"dropout"`     // total number of outgoing packets which were dropped (always 0 on OSX and BSD)
+	Fifoin      uint64 `json:"fifoin"`      // total number of FIFO buffers errors while receiving
+	Fifoout     uint64 `json:"fifoout"`     // total number of FIFO buffers errors while sending
+
+}
+
+// Addr is implemented compatibility to psutil
+type Addr struct {
+	IP   string `json:"ip"`
+	Port uint32 `json:"port"`
+}
+
+type ConnectionStat struct {
+	Fd     uint32  `json:"fd"`
+	Family uint32  `json:"family"`
+	Type   uint32  `json:"type"`
+	Laddr  Addr    `json:"localaddr"`
+	Raddr  Addr    `json:"remoteaddr"`
+	Status string  `json:"status"`
+	Uids   []int32 `json:"uids"`
+	Pid    int32   `json:"pid"`
+}
+
+// System wide stats about different network protocols
+type ProtoCountersStat struct {
+	Protocol string           `json:"protocol"`
+	Stats    map[string]int64 `json:"stats"`
+}
+
+// NetInterfaceAddr is designed for represent interface addresses
+type InterfaceAddr struct {
+	Addr string `json:"addr"`
+}
+
+type InterfaceStat struct {
+	MTU          int             `json:"mtu"`          // maximum transmission unit
+	Name         string          `json:"name"`         // e.g., "en0", "lo0", "eth0.100"
+	HardwareAddr string          `json:"hardwareaddr"` // IEEE MAC-48, EUI-48 and EUI-64 form
+	Flags        []string        `json:"flags"`        // e.g., FlagUp, FlagLoopback, FlagMulticast
+	Addrs        []InterfaceAddr `json:"addrs"`
+}
+
+type FilterStat struct {
+	ConnTrackCount int64 `json:"conntrackCount"`
+	ConnTrackMax   int64 `json:"conntrackMax"`
+}
+
+var constMap = map[string]int{
+	"unix": syscall.AF_UNIX,
+	"TCP":  syscall.SOCK_STREAM,
+	"UDP":  syscall.SOCK_DGRAM,
+	"IPv4": syscall.AF_INET,
+	"IPv6": syscall.AF_INET6,
+}
+
+func (n IOCountersStat) String() string {
+	s, _ := json.Marshal(n)
+	return string(s)
+}
+
+func (n ConnectionStat) String() string {
+	s, _ := json.Marshal(n)
+	return string(s)
+}
+
+func (n ProtoCountersStat) String() string {
+	s, _ := json.Marshal(n)
+	return string(s)
+}
+
+func (a Addr) String() string {
+	s, _ := json.Marshal(a)
+	return string(s)
+}
+
+func (n InterfaceStat) String() string {
+	s, _ := json.Marshal(n)
+	return string(s)
+}
+
+func (n InterfaceAddr) String() string {
+	s, _ := json.Marshal(n)
+	return string(s)
+}
+
+func Interfaces() ([]InterfaceStat, error) {
+	return InterfacesWithContext(context.Background())
+}
+
+func InterfacesWithContext(ctx context.Context) ([]InterfaceStat, error) {
+	is, err := net.Interfaces()
+	if err != nil {
+		return nil, err
+	}
+	ret := make([]InterfaceStat, 0, len(is))
+	for _, ifi := range is {
+
+		var flags []string
+		if ifi.Flags&net.FlagUp != 0 {
+			flags = append(flags, "up")
+		}
+		if ifi.Flags&net.FlagBroadcast != 0 {
+			flags = append(flags, "broadcast")
+		}
+		if ifi.Flags&net.FlagLoopback != 0 {
+			flags = append(flags, "loopback")
+		}
+		if ifi.Flags&net.FlagPointToPoint != 0 {
+			flags = append(flags, "pointtopoint")
+		}
+		if ifi.Flags&net.FlagMulticast != 0 {
+			flags = append(flags, "multicast")
+		}
+
+		r := InterfaceStat{
+			Name:         ifi.Name,
+			MTU:          ifi.MTU,
+			HardwareAddr: ifi.HardwareAddr.String(),
+			Flags:        flags,
+		}
+		addrs, err := ifi.Addrs()
+		if err == nil {
+			r.Addrs = make([]InterfaceAddr, 0, len(addrs))
+			for _, addr := range addrs {
+				r.Addrs = append(r.Addrs, InterfaceAddr{
+					Addr: addr.String(),
+				})
+			}
+
+		}
+		ret = append(ret, r)
+	}
+
+	return ret, nil
+}
+
+func getIOCountersAll(n []IOCountersStat) ([]IOCountersStat, error) {
+	r := IOCountersStat{
+		Name: "all",
+	}
+	for _, nic := range n {
+		r.BytesRecv += nic.BytesRecv
+		r.PacketsRecv += nic.PacketsRecv
+		r.Errin += nic.Errin
+		r.Dropin += nic.Dropin
+		r.BytesSent += nic.BytesSent
+		r.PacketsSent += nic.PacketsSent
+		r.Errout += nic.Errout
+		r.Dropout += nic.Dropout
+	}
+
+	return []IOCountersStat{r}, nil
+}
+
+func parseNetLine(line string) (ConnectionStat, error) {
+	f := strings.Fields(line)
+	if len(f) < 8 {
+		return ConnectionStat{}, fmt.Errorf("wrong line,%s", line)
+	}
+
+	if len(f) == 8 {
+		f = append(f, f[7])
+		f[7] = "unix"
+	}
+
+	pid, err := strconv.Atoi(f[1])
+	if err != nil {
+		return ConnectionStat{}, err
+	}
+	fd, err := strconv.Atoi(strings.Trim(f[3], "u"))
+	if err != nil {
+		return ConnectionStat{}, fmt.Errorf("unknown fd, %s", f[3])
+	}
+	netFamily, ok := constMap[f[4]]
+	if !ok {
+		return ConnectionStat{}, fmt.Errorf("unknown family, %s", f[4])
+	}
+	netType, ok := constMap[f[7]]
+	if !ok {
+		return ConnectionStat{}, fmt.Errorf("unknown type, %s", f[7])
+	}
+
+	var laddr, raddr Addr
+	if f[7] == "unix" {
+		laddr.IP = f[8]
+	} else {
+		laddr, raddr, err = parseNetAddr(f[8])
+		if err != nil {
+			return ConnectionStat{}, fmt.Errorf("failed to parse netaddr, %s", f[8])
+		}
+	}
+
+	n := ConnectionStat{
+		Fd:     uint32(fd),
+		Family: uint32(netFamily),
+		Type:   uint32(netType),
+		Laddr:  laddr,
+		Raddr:  raddr,
+		Pid:    int32(pid),
+	}
+	if len(f) == 10 {
+		n.Status = strings.Trim(f[9], "()")
+	}
+
+	return n, nil
+}
+
+func parseNetAddr(line string) (laddr Addr, raddr Addr, err error) {
+	parse := func(l string) (Addr, error) {
+		host, port, err := net.SplitHostPort(l)
+		if err != nil {
+			return Addr{}, fmt.Errorf("wrong addr, %s", l)
+		}
+		lport, err := strconv.Atoi(port)
+		if err != nil {
+			return Addr{}, err
+		}
+		return Addr{IP: host, Port: uint32(lport)}, nil
+	}
+
+	addrs := strings.Split(line, "->")
+	if len(addrs) == 0 {
+		return laddr, raddr, fmt.Errorf("wrong netaddr, %s", line)
+	}
+	laddr, err = parse(addrs[0])
+	if len(addrs) == 2 { // remote addr exists
+		raddr, err = parse(addrs[1])
+		if err != nil {
+			return laddr, raddr, err
+		}
+	}
+
+	return laddr, raddr, err
+}

vendor/github.com/shirou/gopsutil/net/net_darwin.go

@@ -0,0 +1,284 @@
+// +build darwin
+
+package net
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+var (
+	errNetstatHeader  = errors.New("Can't parse header of netstat output")
+	netstatLinkRegexp = regexp.MustCompile(`^<Link#(\d+)>$`)
+)
+
+const endOfLine = "\n"
+
+func parseNetstatLine(line string) (stat *IOCountersStat, linkID *uint, err error) {
+	var (
+		numericValue uint64
+		columns      = strings.Fields(line)
+	)
+
+	if columns[0] == "Name" {
+		err = errNetstatHeader
+		return
+	}
+
+	// try to extract the numeric value from <Link#123>
+	if subMatch := netstatLinkRegexp.FindStringSubmatch(columns[2]); len(subMatch) == 2 {
+		numericValue, err = strconv.ParseUint(subMatch[1], 10, 64)
+		if err != nil {
+			return
+		}
+		linkIDUint := uint(numericValue)
+		linkID = &linkIDUint
+	}
+
+	base := 1
+	numberColumns := len(columns)
+	// sometimes Address is ommitted
+	if numberColumns < 12 {
+		base = 0
+	}
+	if numberColumns < 11 || numberColumns > 13 {
+		err = fmt.Errorf("Line %q do have an invalid number of columns %d", line, numberColumns)
+		return
+	}
+
+	parsed := make([]uint64, 0, 7)
+	vv := []string{
+		columns[base+3], // Ipkts == PacketsRecv
+		columns[base+4], // Ierrs == Errin
+		columns[base+5], // Ibytes == BytesRecv
+		columns[base+6], // Opkts == PacketsSent
+		columns[base+7], // Oerrs == Errout
+		columns[base+8], // Obytes == BytesSent
+	}
+	if len(columns) == 12 {
+		vv = append(vv, columns[base+10])
+	}
+
+	for _, target := range vv {
+		if target == "-" {
+			parsed = append(parsed, 0)
+			continue
+		}
+
+		if numericValue, err = strconv.ParseUint(target, 10, 64); err != nil {
+			return
+		}
+		parsed = append(parsed, numericValue)
+	}
+
+	stat = &IOCountersStat{
+		Name:        strings.Trim(columns[0], "*"), // remove the * that sometimes is on right on interface
+		PacketsRecv: parsed[0],
+		Errin:       parsed[1],
+		BytesRecv:   parsed[2],
+		PacketsSent: parsed[3],
+		Errout:      parsed[4],
+		BytesSent:   parsed[5],
+	}
+	if len(parsed) == 7 {
+		stat.Dropout = parsed[6]
+	}
+	return
+}
+
+type netstatInterface struct {
+	linkID *uint
+	stat   *IOCountersStat
+}
+
+func parseNetstatOutput(output string) ([]netstatInterface, error) {
+	var (
+		err   error
+		lines = strings.Split(strings.Trim(output, endOfLine), endOfLine)
+	)
+
+	// number of interfaces is number of lines less one for the header
+	numberInterfaces := len(lines) - 1
+
+	interfaces := make([]netstatInterface, numberInterfaces)
+	// no output beside header
+	if numberInterfaces == 0 {
+		return interfaces, nil
+	}
+
+	for index := 0; index < numberInterfaces; index++ {
+		nsIface := netstatInterface{}
+		if nsIface.stat, nsIface.linkID, err = parseNetstatLine(lines[index+1]); err != nil {
+			return nil, err
+		}
+		interfaces[index] = nsIface
+	}
+	return interfaces, nil
+}
+
+// map that hold the name of a network interface and the number of usage
+type mapInterfaceNameUsage map[string]uint
+
+func newMapInterfaceNameUsage(ifaces []netstatInterface) mapInterfaceNameUsage {
+	output := make(mapInterfaceNameUsage)
+	for index := range ifaces {
+		if ifaces[index].linkID != nil {
+			ifaceName := ifaces[index].stat.Name
+			usage, ok := output[ifaceName]
+			if ok {
+				output[ifaceName] = usage + 1
+			} else {
+				output[ifaceName] = 1
+			}
+		}
+	}
+	return output
+}
+
+func (min mapInterfaceNameUsage) isTruncated() bool {
+	for _, usage := range min {
+		if usage > 1 {
+			return true
+		}
+	}
+	return false
+}
+
+func (min mapInterfaceNameUsage) notTruncated() []string {
+	output := make([]string, 0)
+	for ifaceName, usage := range min {
+		if usage == 1 {
+			output = append(output, ifaceName)
+		}
+	}
+	return output
+}
+
+// example of `netstat -ibdnW` output on yosemite
+// Name  Mtu   Network       Address            Ipkts Ierrs     Ibytes    Opkts Oerrs     Obytes  Coll Drop
+// lo0   16384 <Link#1>                        869107     0  169411755   869107     0  169411755     0   0
+// lo0   16384 ::1/128     ::1                 869107     -  169411755   869107     -  169411755     -   -
+// lo0   16384 127           127.0.0.1         869107     -  169411755   869107     -  169411755     -   -
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	var (
+		ret      []IOCountersStat
+		retIndex int
+	)
+
+	netstat, err := exec.LookPath("/usr/sbin/netstat")
+	if err != nil {
+		return nil, err
+	}
+
+	// try to get all interface metrics, and hope there won't be any truncated
+	out, err := invoke.CommandWithContext(ctx, netstat, "-ibdnW")
+	if err != nil {
+		return nil, err
+	}
+
+	nsInterfaces, err := parseNetstatOutput(string(out))
+	if err != nil {
+		return nil, err
+	}
+
+	ifaceUsage := newMapInterfaceNameUsage(nsInterfaces)
+	notTruncated := ifaceUsage.notTruncated()
+	ret = make([]IOCountersStat, len(notTruncated))
+
+	if !ifaceUsage.isTruncated() {
+		// no truncated interface name, return stats of all interface with <Link#...>
+		for index := range nsInterfaces {
+			if nsInterfaces[index].linkID != nil {
+				ret[retIndex] = *nsInterfaces[index].stat
+				retIndex++
+			}
+		}
+	} else {
+		// duplicated interface, list all interfaces
+		ifconfig, err := exec.LookPath("/sbin/ifconfig")
+		if err != nil {
+			return nil, err
+		}
+		if out, err = invoke.CommandWithContext(ctx, ifconfig, "-l"); err != nil {
+			return nil, err
+		}
+		interfaceNames := strings.Fields(strings.TrimRight(string(out), endOfLine))
+
+		// for each of the interface name, run netstat if we don't have any stats yet
+		for _, interfaceName := range interfaceNames {
+			truncated := true
+			for index := range nsInterfaces {
+				if nsInterfaces[index].linkID != nil && nsInterfaces[index].stat.Name == interfaceName {
+					// handle the non truncated name to avoid execute netstat for them again
+					ret[retIndex] = *nsInterfaces[index].stat
+					retIndex++
+					truncated = false
+					break
+				}
+			}
+			if truncated {
+				// run netstat with -I$ifacename
+				if out, err = invoke.CommandWithContext(ctx, netstat, "-ibdnWI"+interfaceName); err != nil {
+					return nil, err
+				}
+				parsedIfaces, err := parseNetstatOutput(string(out))
+				if err != nil {
+					return nil, err
+				}
+				if len(parsedIfaces) == 0 {
+					// interface had been removed since `ifconfig -l` had been executed
+					continue
+				}
+				for index := range parsedIfaces {
+					if parsedIfaces[index].linkID != nil {
+						ret = append(ret, *parsedIfaces[index].stat)
+						break
+					}
+				}
+			}
+		}
+	}
+
+	if pernic == false {
+		return getIOCountersAll(ret)
+	}
+	return ret, nil
+}
+
+// NetIOCountersByFile is an method which is added just a compatibility for linux.
+func IOCountersByFile(pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCountersByFileWithContext(context.Background(), pernic, filename)
+}
+
+func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCounters(pernic)
+}
+
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	return nil, errors.New("NetFilterCounters not implemented for darwin")
+}
+
+// NetProtoCounters returns network statistics for the entire system
+// If protocols is empty then all protocols are returned, otherwise
+// just the protocols in the list are returned.
+// Not Implemented for Darwin
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	return nil, errors.New("NetProtoCounters not implemented for darwin")
+}

vendor/github.com/shirou/gopsutil/net/net_fallback.go

@@ -0,0 +1,49 @@
+// +build !darwin,!linux,!freebsd,!openbsd,!windows
+
+package net
+
+import (
+	"context"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	return []IOCountersStat{}, common.ErrNotImplementedError
+}
+
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	return []FilterStat{}, common.ErrNotImplementedError
+}
+
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	return []ProtoCountersStat{}, common.ErrNotImplementedError
+}
+
+func Connections(kind string) ([]ConnectionStat, error) {
+	return ConnectionsWithContext(context.Background(), kind)
+}
+
+func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
+	return []ConnectionStat{}, common.ErrNotImplementedError
+}
+
+func ConnectionsMax(kind string, max int) ([]ConnectionStat, error) {
+	return ConnectionsMaxWithContext(context.Background(), kind, max)
+}
+
+func ConnectionsMaxWithContext(ctx context.Context, kind string, max int) ([]ConnectionStat, error) {
+	return []ConnectionStat{}, common.ErrNotImplementedError
+}

vendor/github.com/shirou/gopsutil/net/net_freebsd.go

@@ -0,0 +1,125 @@
+// +build freebsd
+
+package net
+
+import (
+	"context"
+	"errors"
+	"os/exec"
+	"strconv"
+	"strings"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	netstat, err := exec.LookPath("/usr/bin/netstat")
+	if err != nil {
+		return nil, err
+	}
+	out, err := invoke.CommandWithContext(ctx, netstat, "-ibdnW")
+	if err != nil {
+		return nil, err
+	}
+
+	lines := strings.Split(string(out), "\n")
+	ret := make([]IOCountersStat, 0, len(lines)-1)
+	exists := make([]string, 0, len(ret))
+
+	for _, line := range lines {
+		values := strings.Fields(line)
+		if len(values) < 1 || values[0] == "Name" {
+			continue
+		}
+		if common.StringsHas(exists, values[0]) {
+			// skip if already get
+			continue
+		}
+		exists = append(exists, values[0])
+
+		if len(values) < 12 {
+			continue
+		}
+		base := 1
+		// sometimes Address is ommitted
+		if len(values) < 13 {
+			base = 0
+		}
+
+		parsed := make([]uint64, 0, 8)
+		vv := []string{
+			values[base+3],  // PacketsRecv
+			values[base+4],  // Errin
+			values[base+5],  // Dropin
+			values[base+6],  // BytesRecvn
+			values[base+7],  // PacketSent
+			values[base+8],  // Errout
+			values[base+9],  // BytesSent
+			values[base+11], // Dropout
+		}
+		for _, target := range vv {
+			if target == "-" {
+				parsed = append(parsed, 0)
+				continue
+			}
+
+			t, err := strconv.ParseUint(target, 10, 64)
+			if err != nil {
+				return nil, err
+			}
+			parsed = append(parsed, t)
+		}
+
+		n := IOCountersStat{
+			Name:        values[0],
+			PacketsRecv: parsed[0],
+			Errin:       parsed[1],
+			Dropin:      parsed[2],
+			BytesRecv:   parsed[3],
+			PacketsSent: parsed[4],
+			Errout:      parsed[5],
+			BytesSent:   parsed[6],
+			Dropout:     parsed[7],
+		}
+		ret = append(ret, n)
+	}
+
+	if pernic == false {
+		return getIOCountersAll(ret)
+	}
+
+	return ret, nil
+}
+
+// NetIOCountersByFile is an method which is added just a compatibility for linux.
+func IOCountersByFile(pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCountersByFileWithContext(context.Background(), pernic, filename)
+}
+
+func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCounters(pernic)
+}
+
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	return nil, errors.New("NetFilterCounters not implemented for freebsd")
+}
+
+// NetProtoCounters returns network statistics for the entire system
+// If protocols is empty then all protocols are returned, otherwise
+// just the protocols in the list are returned.
+// Not Implemented for FreeBSD
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	return nil, errors.New("NetProtoCounters not implemented for freebsd")
+}

vendor/github.com/shirou/gopsutil/net/net_linux.go

@@ -0,0 +1,791 @@
+// +build linux
+
+package net
+
+import (
+	"bytes"
+	"context"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"net"
+	"os"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+// NetIOCounters returnes network I/O statistics for every network
+// interface installed on the system.  If pernic argument is false,
+// return only sum of all information (which name is 'all'). If true,
+// every network interface installed on the system is returned
+// separately.
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	filename := common.HostProc("net/dev")
+	return IOCountersByFile(pernic, filename)
+}
+
+func IOCountersByFile(pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCountersByFileWithContext(context.Background(), pernic, filename)
+}
+
+func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
+	lines, err := common.ReadLines(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	parts := make([]string, 2)
+
+	statlen := len(lines) - 1
+
+	ret := make([]IOCountersStat, 0, statlen)
+
+	for _, line := range lines[2:] {
+		separatorPos := strings.LastIndex(line, ":")
+		if separatorPos == -1 {
+			continue
+		}
+		parts[0] = line[0:separatorPos]
+		parts[1] = line[separatorPos+1:]
+
+		interfaceName := strings.TrimSpace(parts[0])
+		if interfaceName == "" {
+			continue
+		}
+
+		fields := strings.Fields(strings.TrimSpace(parts[1]))
+		bytesRecv, err := strconv.ParseUint(fields[0], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		packetsRecv, err := strconv.ParseUint(fields[1], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		errIn, err := strconv.ParseUint(fields[2], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		dropIn, err := strconv.ParseUint(fields[3], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		fifoIn, err := strconv.ParseUint(fields[4], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		bytesSent, err := strconv.ParseUint(fields[8], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		packetsSent, err := strconv.ParseUint(fields[9], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		errOut, err := strconv.ParseUint(fields[10], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		dropOut, err := strconv.ParseUint(fields[11], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+		fifoOut, err := strconv.ParseUint(fields[12], 10, 64)
+		if err != nil {
+			return ret, err
+		}
+
+		nic := IOCountersStat{
+			Name:        interfaceName,
+			BytesRecv:   bytesRecv,
+			PacketsRecv: packetsRecv,
+			Errin:       errIn,
+			Dropin:      dropIn,
+			Fifoin:      fifoIn,
+			BytesSent:   bytesSent,
+			PacketsSent: packetsSent,
+			Errout:      errOut,
+			Dropout:     dropOut,
+			Fifoout:     fifoOut,
+		}
+		ret = append(ret, nic)
+	}
+
+	if pernic == false {
+		return getIOCountersAll(ret)
+	}
+
+	return ret, nil
+}
+
+var netProtocols = []string{
+	"ip",
+	"icmp",
+	"icmpmsg",
+	"tcp",
+	"udp",
+	"udplite",
+}
+
+// NetProtoCounters returns network statistics for the entire system
+// If protocols is empty then all protocols are returned, otherwise
+// just the protocols in the list are returned.
+// Available protocols:
+//   ip,icmp,icmpmsg,tcp,udp,udplite
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	if len(protocols) == 0 {
+		protocols = netProtocols
+	}
+
+	stats := make([]ProtoCountersStat, 0, len(protocols))
+	protos := make(map[string]bool, len(protocols))
+	for _, p := range protocols {
+		protos[p] = true
+	}
+
+	filename := common.HostProc("net/snmp")
+	lines, err := common.ReadLines(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	linecount := len(lines)
+	for i := 0; i < linecount; i++ {
+		line := lines[i]
+		r := strings.IndexRune(line, ':')
+		if r == -1 {
+			return nil, errors.New(filename + " is not fomatted correctly, expected ':'.")
+		}
+		proto := strings.ToLower(line[:r])
+		if !protos[proto] {
+			// skip protocol and data line
+			i++
+			continue
+		}
+
+		// Read header line
+		statNames := strings.Split(line[r+2:], " ")
+
+		// Read data line
+		i++
+		statValues := strings.Split(lines[i][r+2:], " ")
+		if len(statNames) != len(statValues) {
+			return nil, errors.New(filename + " is not fomatted correctly, expected same number of columns.")
+		}
+		stat := ProtoCountersStat{
+			Protocol: proto,
+			Stats:    make(map[string]int64, len(statNames)),
+		}
+		for j := range statNames {
+			value, err := strconv.ParseInt(statValues[j], 10, 64)
+			if err != nil {
+				return nil, err
+			}
+			stat.Stats[statNames[j]] = value
+		}
+		stats = append(stats, stat)
+	}
+	return stats, nil
+}
+
+// NetFilterCounters returns iptables conntrack statistics
+// the currently in use conntrack count and the max.
+// If the file does not exist or is invalid it will return nil.
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	countfile := common.HostProc("sys/net/netfilter/nf_conntrack_count")
+	maxfile := common.HostProc("sys/net/netfilter/nf_conntrack_max")
+
+	count, err := common.ReadInts(countfile)
+
+	if err != nil {
+		return nil, err
+	}
+	stats := make([]FilterStat, 0, 1)
+
+	max, err := common.ReadInts(maxfile)
+	if err != nil {
+		return nil, err
+	}
+
+	payload := FilterStat{
+		ConnTrackCount: count[0],
+		ConnTrackMax:   max[0],
+	}
+
+	stats = append(stats, payload)
+	return stats, nil
+}
+
+// http://students.mimuw.edu.pl/lxr/source/include/net/tcp_states.h
+var TCPStatuses = map[string]string{
+	"01": "ESTABLISHED",
+	"02": "SYN_SENT",
+	"03": "SYN_RECV",
+	"04": "FIN_WAIT1",
+	"05": "FIN_WAIT2",
+	"06": "TIME_WAIT",
+	"07": "CLOSE",
+	"08": "CLOSE_WAIT",
+	"09": "LAST_ACK",
+	"0A": "LISTEN",
+	"0B": "CLOSING",
+}
+
+type netConnectionKindType struct {
+	family   uint32
+	sockType uint32
+	filename string
+}
+
+var kindTCP4 = netConnectionKindType{
+	family:   syscall.AF_INET,
+	sockType: syscall.SOCK_STREAM,
+	filename: "tcp",
+}
+var kindTCP6 = netConnectionKindType{
+	family:   syscall.AF_INET6,
+	sockType: syscall.SOCK_STREAM,
+	filename: "tcp6",
+}
+var kindUDP4 = netConnectionKindType{
+	family:   syscall.AF_INET,
+	sockType: syscall.SOCK_DGRAM,
+	filename: "udp",
+}
+var kindUDP6 = netConnectionKindType{
+	family:   syscall.AF_INET6,
+	sockType: syscall.SOCK_DGRAM,
+	filename: "udp6",
+}
+var kindUNIX = netConnectionKindType{
+	family:   syscall.AF_UNIX,
+	filename: "unix",
+}
+
+var netConnectionKindMap = map[string][]netConnectionKindType{
+	"all":   {kindTCP4, kindTCP6, kindUDP4, kindUDP6, kindUNIX},
+	"tcp":   {kindTCP4, kindTCP6},
+	"tcp4":  {kindTCP4},
+	"tcp6":  {kindTCP6},
+	"udp":   {kindUDP4, kindUDP6},
+	"udp4":  {kindUDP4},
+	"udp6":  {kindUDP6},
+	"unix":  {kindUNIX},
+	"inet":  {kindTCP4, kindTCP6, kindUDP4, kindUDP6},
+	"inet4": {kindTCP4, kindUDP4},
+	"inet6": {kindTCP6, kindUDP6},
+}
+
+type inodeMap struct {
+	pid int32
+	fd  uint32
+}
+
+type connTmp struct {
+	fd       uint32
+	family   uint32
+	sockType uint32
+	laddr    Addr
+	raddr    Addr
+	status   string
+	pid      int32
+	boundPid int32
+	path     string
+}
+
+// Return a list of network connections opened.
+func Connections(kind string) ([]ConnectionStat, error) {
+	return ConnectionsWithContext(context.Background(), kind)
+}
+
+func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
+	return ConnectionsPid(kind, 0)
+}
+
+// Return a list of network connections opened returning at most `max`
+// connections for each running process.
+func ConnectionsMax(kind string, max int) ([]ConnectionStat, error) {
+	return ConnectionsMaxWithContext(context.Background(), kind, max)
+}
+
+func ConnectionsMaxWithContext(ctx context.Context, kind string, max int) ([]ConnectionStat, error) {
+	return ConnectionsPidMax(kind, 0, max)
+}
+
+// Return a list of network connections opened by a process.
+func ConnectionsPid(kind string, pid int32) ([]ConnectionStat, error) {
+	return ConnectionsPidWithContext(context.Background(), kind, pid)
+}
+
+func ConnectionsPidWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
+	tmap, ok := netConnectionKindMap[kind]
+	if !ok {
+		return nil, fmt.Errorf("invalid kind, %s", kind)
+	}
+	root := common.HostProc()
+	var err error
+	var inodes map[string][]inodeMap
+	if pid == 0 {
+		inodes, err = getProcInodesAll(root, 0)
+	} else {
+		inodes, err = getProcInodes(root, pid, 0)
+		if len(inodes) == 0 {
+			// no connection for the pid
+			return []ConnectionStat{}, nil
+		}
+	}
+	if err != nil {
+		return nil, fmt.Errorf("cound not get pid(s), %d: %s", pid, err)
+	}
+	return statsFromInodes(root, pid, tmap, inodes)
+}
+
+// Return up to `max` network connections opened by a process.
+func ConnectionsPidMax(kind string, pid int32, max int) ([]ConnectionStat, error) {
+	return ConnectionsPidMaxWithContext(context.Background(), kind, pid, max)
+}
+
+func ConnectionsPidMaxWithContext(ctx context.Context, kind string, pid int32, max int) ([]ConnectionStat, error) {
+	tmap, ok := netConnectionKindMap[kind]
+	if !ok {
+		return nil, fmt.Errorf("invalid kind, %s", kind)
+	}
+	root := common.HostProc()
+	var err error
+	var inodes map[string][]inodeMap
+	if pid == 0 {
+		inodes, err = getProcInodesAll(root, max)
+	} else {
+		inodes, err = getProcInodes(root, pid, max)
+		if len(inodes) == 0 {
+			// no connection for the pid
+			return []ConnectionStat{}, nil
+		}
+	}
+	if err != nil {
+		return nil, fmt.Errorf("cound not get pid(s), %d", pid)
+	}
+	return statsFromInodes(root, pid, tmap, inodes)
+}
+
+func statsFromInodes(root string, pid int32, tmap []netConnectionKindType, inodes map[string][]inodeMap) ([]ConnectionStat, error) {
+	dupCheckMap := make(map[string]struct{})
+	var ret []ConnectionStat
+
+	var err error
+	for _, t := range tmap {
+		var path string
+		var connKey string
+		var ls []connTmp
+		path = fmt.Sprintf("%s/net/%s", root, t.filename)
+		switch t.family {
+		case syscall.AF_INET:
+			fallthrough
+		case syscall.AF_INET6:
+			ls, err = processInet(path, t, inodes, pid)
+		case syscall.AF_UNIX:
+			ls, err = processUnix(path, t, inodes, pid)
+		}
+		if err != nil {
+			return nil, err
+		}
+		for _, c := range ls {
+			// Build TCP key to id the connection uniquely
+			// socket type, src ip, src port, dst ip, dst port and state should be enough
+			// to prevent duplications.
+			connKey = fmt.Sprintf("%d-%s:%d-%s:%d-%s", c.sockType, c.laddr.IP, c.laddr.Port, c.raddr.IP, c.raddr.Port, c.status)
+			if _, ok := dupCheckMap[connKey]; ok {
+				continue
+			}
+
+			conn := ConnectionStat{
+				Fd:     c.fd,
+				Family: c.family,
+				Type:   c.sockType,
+				Laddr:  c.laddr,
+				Raddr:  c.raddr,
+				Status: c.status,
+				Pid:    c.pid,
+			}
+			if c.pid == 0 {
+				conn.Pid = c.boundPid
+			} else {
+				conn.Pid = c.pid
+			}
+
+			// fetch process owner Real, effective, saved set, and filesystem UIDs
+			proc := process{Pid: conn.Pid}
+			conn.Uids, _ = proc.getUids()
+
+			ret = append(ret, conn)
+			dupCheckMap[connKey] = struct{}{}
+		}
+
+	}
+
+	return ret, nil
+}
+
+// getProcInodes returnes fd of the pid.
+func getProcInodes(root string, pid int32, max int) (map[string][]inodeMap, error) {
+	ret := make(map[string][]inodeMap)
+
+	dir := fmt.Sprintf("%s/%d/fd", root, pid)
+	f, err := os.Open(dir)
+	if err != nil {
+		return ret, err
+	}
+	defer f.Close()
+	files, err := f.Readdir(max)
+	if err != nil {
+		return ret, err
+	}
+	for _, fd := range files {
+		inodePath := fmt.Sprintf("%s/%d/fd/%s", root, pid, fd.Name())
+
+		inode, err := os.Readlink(inodePath)
+		if err != nil {
+			continue
+		}
+		if !strings.HasPrefix(inode, "socket:[") {
+			continue
+		}
+		// the process is using a socket
+		l := len(inode)
+		inode = inode[8 : l-1]
+		_, ok := ret[inode]
+		if !ok {
+			ret[inode] = make([]inodeMap, 0)
+		}
+		fd, err := strconv.Atoi(fd.Name())
+		if err != nil {
+			continue
+		}
+
+		i := inodeMap{
+			pid: pid,
+			fd:  uint32(fd),
+		}
+		ret[inode] = append(ret[inode], i)
+	}
+	return ret, nil
+}
+
+// Pids retunres all pids.
+// Note: this is a copy of process_linux.Pids()
+// FIXME: Import process occures import cycle.
+// move to common made other platform breaking. Need consider.
+func Pids() ([]int32, error) {
+	return PidsWithContext(context.Background())
+}
+
+func PidsWithContext(ctx context.Context) ([]int32, error) {
+	var ret []int32
+
+	d, err := os.Open(common.HostProc())
+	if err != nil {
+		return nil, err
+	}
+	defer d.Close()
+
+	fnames, err := d.Readdirnames(-1)
+	if err != nil {
+		return nil, err
+	}
+	for _, fname := range fnames {
+		pid, err := strconv.ParseInt(fname, 10, 32)
+		if err != nil {
+			// if not numeric name, just skip
+			continue
+		}
+		ret = append(ret, int32(pid))
+	}
+
+	return ret, nil
+}
+
+// Note: the following is based off process_linux structs and methods
+// we need these to fetch the owner of a process ID
+// FIXME: Import process occures import cycle.
+// see remarks on pids()
+type process struct {
+	Pid  int32 `json:"pid"`
+	uids []int32
+}
+
+// Uids returns user ids of the process as a slice of the int
+func (p *process) getUids() ([]int32, error) {
+	err := p.fillFromStatus()
+	if err != nil {
+		return []int32{}, err
+	}
+	return p.uids, nil
+}
+
+// Get status from /proc/(pid)/status
+func (p *process) fillFromStatus() error {
+	pid := p.Pid
+	statPath := common.HostProc(strconv.Itoa(int(pid)), "status")
+	contents, err := ioutil.ReadFile(statPath)
+	if err != nil {
+		return err
+	}
+	lines := strings.Split(string(contents), "\n")
+	for _, line := range lines {
+		tabParts := strings.SplitN(line, "\t", 2)
+		if len(tabParts) < 2 {
+			continue
+		}
+		value := tabParts[1]
+		switch strings.TrimRight(tabParts[0], ":") {
+		case "Uid":
+			p.uids = make([]int32, 0, 4)
+			for _, i := range strings.Split(value, "\t") {
+				v, err := strconv.ParseInt(i, 10, 32)
+				if err != nil {
+					return err
+				}
+				p.uids = append(p.uids, int32(v))
+			}
+		}
+	}
+	return nil
+}
+
+func getProcInodesAll(root string, max int) (map[string][]inodeMap, error) {
+	pids, err := Pids()
+	if err != nil {
+		return nil, err
+	}
+	ret := make(map[string][]inodeMap)
+
+	for _, pid := range pids {
+		t, err := getProcInodes(root, pid, max)
+		if err != nil {
+			// skip if permission error or no longer exists
+			if os.IsPermission(err) || os.IsNotExist(err) {
+				continue
+			}
+			return ret, err
+		}
+		if len(t) == 0 {
+			continue
+		}
+		// TODO: update ret.
+		ret = updateMap(ret, t)
+	}
+	return ret, nil
+}
+
+// decodeAddress decode addresse represents addr in proc/net/*
+// ex:
+// "0500000A:0016" -> "10.0.0.5", 22
+// "0085002452100113070057A13F025401:0035" -> "2400:8500:1301:1052:a157:7:154:23f", 53
+func decodeAddress(family uint32, src string) (Addr, error) {
+	t := strings.Split(src, ":")
+	if len(t) != 2 {
+		return Addr{}, fmt.Errorf("does not contain port, %s", src)
+	}
+	addr := t[0]
+	port, err := strconv.ParseInt("0x"+t[1], 0, 64)
+	if err != nil {
+		return Addr{}, fmt.Errorf("invalid port, %s", src)
+	}
+	decoded, err := hex.DecodeString(addr)
+	if err != nil {
+		return Addr{}, fmt.Errorf("decode error, %s", err)
+	}
+	var ip net.IP
+	// Assumes this is little_endian
+	if family == syscall.AF_INET {
+		ip = net.IP(Reverse(decoded))
+	} else { // IPv6
+		ip, err = parseIPv6HexString(decoded)
+		if err != nil {
+			return Addr{}, err
+		}
+	}
+	return Addr{
+		IP:   ip.String(),
+		Port: uint32(port),
+	}, nil
+}
+
+// Reverse reverses array of bytes.
+func Reverse(s []byte) []byte {
+	return ReverseWithContext(context.Background(), s)
+}
+
+func ReverseWithContext(ctx context.Context, s []byte) []byte {
+	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
+		s[i], s[j] = s[j], s[i]
+	}
+	return s
+}
+
+// parseIPv6HexString parse array of bytes to IPv6 string
+func parseIPv6HexString(src []byte) (net.IP, error) {
+	if len(src) != 16 {
+		return nil, fmt.Errorf("invalid IPv6 string")
+	}
+
+	buf := make([]byte, 0, 16)
+	for i := 0; i < len(src); i += 4 {
+		r := Reverse(src[i : i+4])
+		buf = append(buf, r...)
+	}
+	return net.IP(buf), nil
+}
+
+func processInet(file string, kind netConnectionKindType, inodes map[string][]inodeMap, filterPid int32) ([]connTmp, error) {
+
+	if strings.HasSuffix(file, "6") && !common.PathExists(file) {
+		// IPv6 not supported, return empty.
+		return []connTmp{}, nil
+	}
+
+	// Read the contents of the /proc file with a single read sys call.
+	// This minimizes duplicates in the returned connections
+	// For more info:
+	// https://github.com/shirou/gopsutil/pull/361
+	contents, err := ioutil.ReadFile(file)
+	if err != nil {
+		return nil, err
+	}
+
+	lines := bytes.Split(contents, []byte("\n"))
+
+	var ret []connTmp
+	// skip first line
+	for _, line := range lines[1:] {
+		l := strings.Fields(string(line))
+		if len(l) < 10 {
+			continue
+		}
+		laddr := l[1]
+		raddr := l[2]
+		status := l[3]
+		inode := l[9]
+		pid := int32(0)
+		fd := uint32(0)
+		i, exists := inodes[inode]
+		if exists {
+			pid = i[0].pid
+			fd = i[0].fd
+		}
+		if filterPid > 0 && filterPid != pid {
+			continue
+		}
+		if kind.sockType == syscall.SOCK_STREAM {
+			status = TCPStatuses[status]
+		} else {
+			status = "NONE"
+		}
+		la, err := decodeAddress(kind.family, laddr)
+		if err != nil {
+			continue
+		}
+		ra, err := decodeAddress(kind.family, raddr)
+		if err != nil {
+			continue
+		}
+
+		ret = append(ret, connTmp{
+			fd:       fd,
+			family:   kind.family,
+			sockType: kind.sockType,
+			laddr:    la,
+			raddr:    ra,
+			status:   status,
+			pid:      pid,
+		})
+	}
+
+	return ret, nil
+}
+
+func processUnix(file string, kind netConnectionKindType, inodes map[string][]inodeMap, filterPid int32) ([]connTmp, error) {
+	// Read the contents of the /proc file with a single read sys call.
+	// This minimizes duplicates in the returned connections
+	// For more info:
+	// https://github.com/shirou/gopsutil/pull/361
+	contents, err := ioutil.ReadFile(file)
+	if err != nil {
+		return nil, err
+	}
+
+	lines := bytes.Split(contents, []byte("\n"))
+
+	var ret []connTmp
+	// skip first line
+	for _, line := range lines[1:] {
+		tokens := strings.Fields(string(line))
+		if len(tokens) < 6 {
+			continue
+		}
+		st, err := strconv.Atoi(tokens[4])
+		if err != nil {
+			return nil, err
+		}
+
+		inode := tokens[6]
+
+		var pairs []inodeMap
+		pairs, exists := inodes[inode]
+		if !exists {
+			pairs = []inodeMap{
+				{},
+			}
+		}
+		for _, pair := range pairs {
+			if filterPid > 0 && filterPid != pair.pid {
+				continue
+			}
+			var path string
+			if len(tokens) == 8 {
+				path = tokens[len(tokens)-1]
+			}
+			ret = append(ret, connTmp{
+				fd:       pair.fd,
+				family:   kind.family,
+				sockType: uint32(st),
+				laddr: Addr{
+					IP: path,
+				},
+				pid:    pair.pid,
+				status: "NONE",
+				path:   path,
+			})
+		}
+	}
+
+	return ret, nil
+}
+
+func updateMap(src map[string][]inodeMap, add map[string][]inodeMap) map[string][]inodeMap {
+	for key, value := range add {
+		a, exists := src[key]
+		if !exists {
+			src[key] = value
+			continue
+		}
+		src[key] = append(a, value...)
+	}
+	return src
+}

vendor/github.com/shirou/gopsutil/net/net_openbsd.go

@@ -0,0 +1,312 @@
+// +build openbsd
+
+package net
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+var portMatch = regexp.MustCompile(`(.*)\.(\d+)$`)
+
+func ParseNetstat(output string, mode string,
+	iocs map[string]IOCountersStat) error {
+	lines := strings.Split(output, "\n")
+
+	exists := make([]string, 0, len(lines)-1)
+
+	columns := 6
+	if mode == "ind" {
+		columns = 10
+	}
+	for _, line := range lines {
+		values := strings.Fields(line)
+		if len(values) < 1 || values[0] == "Name" {
+			continue
+		}
+		if common.StringsHas(exists, values[0]) {
+			// skip if already get
+			continue
+		}
+
+		if len(values) < columns {
+			continue
+		}
+		base := 1
+		// sometimes Address is ommitted
+		if len(values) < columns {
+			base = 0
+		}
+
+		parsed := make([]uint64, 0, 8)
+		var vv []string
+		if mode == "inb" {
+			vv = []string{
+				values[base+3], // BytesRecv
+				values[base+4], // BytesSent
+			}
+		} else {
+			vv = []string{
+				values[base+3], // Ipkts
+				values[base+4], // Ierrs
+				values[base+5], // Opkts
+				values[base+6], // Oerrs
+				values[base+8], // Drops
+			}
+		}
+		for _, target := range vv {
+			if target == "-" {
+				parsed = append(parsed, 0)
+				continue
+			}
+
+			t, err := strconv.ParseUint(target, 10, 64)
+			if err != nil {
+				return err
+			}
+			parsed = append(parsed, t)
+		}
+		exists = append(exists, values[0])
+
+		n, present := iocs[values[0]]
+		if !present {
+			n = IOCountersStat{Name: values[0]}
+		}
+		if mode == "inb" {
+			n.BytesRecv = parsed[0]
+			n.BytesSent = parsed[1]
+		} else {
+			n.PacketsRecv = parsed[0]
+			n.Errin = parsed[1]
+			n.PacketsSent = parsed[2]
+			n.Errout = parsed[3]
+			n.Dropin = parsed[4]
+			n.Dropout = parsed[4]
+		}
+
+		iocs[n.Name] = n
+	}
+	return nil
+}
+
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	netstat, err := exec.LookPath("netstat")
+	if err != nil {
+		return nil, err
+	}
+	out, err := invoke.CommandWithContext(ctx, netstat, "-inb")
+	if err != nil {
+		return nil, err
+	}
+	out2, err := invoke.CommandWithContext(ctx, netstat, "-ind")
+	if err != nil {
+		return nil, err
+	}
+	iocs := make(map[string]IOCountersStat)
+
+	lines := strings.Split(string(out), "\n")
+	ret := make([]IOCountersStat, 0, len(lines)-1)
+
+	err = ParseNetstat(string(out), "inb", iocs)
+	if err != nil {
+		return nil, err
+	}
+	err = ParseNetstat(string(out2), "ind", iocs)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, ioc := range iocs {
+		ret = append(ret, ioc)
+	}
+
+	if pernic == false {
+		return getIOCountersAll(ret)
+	}
+
+	return ret, nil
+}
+
+// NetIOCountersByFile is an method which is added just a compatibility for linux.
+func IOCountersByFile(pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCountersByFileWithContext(context.Background(), pernic, filename)
+}
+
+func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCounters(pernic)
+}
+
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	return nil, errors.New("NetFilterCounters not implemented for openbsd")
+}
+
+// NetProtoCounters returns network statistics for the entire system
+// If protocols is empty then all protocols are returned, otherwise
+// just the protocols in the list are returned.
+// Not Implemented for OpenBSD
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	return nil, errors.New("NetProtoCounters not implemented for openbsd")
+}
+
+func parseNetstatLine(line string) (ConnectionStat, error) {
+	f := strings.Fields(line)
+	if len(f) < 5 {
+		return ConnectionStat{}, fmt.Errorf("wrong line,%s", line)
+	}
+
+	var netType, netFamily uint32
+	switch f[0] {
+	case "tcp":
+		netType = syscall.SOCK_STREAM
+		netFamily = syscall.AF_INET
+	case "udp":
+		netType = syscall.SOCK_DGRAM
+		netFamily = syscall.AF_INET
+	case "tcp6":
+		netType = syscall.SOCK_STREAM
+		netFamily = syscall.AF_INET6
+	case "udp6":
+		netType = syscall.SOCK_DGRAM
+		netFamily = syscall.AF_INET6
+	default:
+		return ConnectionStat{}, fmt.Errorf("unknown type, %s", f[0])
+	}
+
+	laddr, raddr, err := parseNetstatAddr(f[3], f[4], netFamily)
+	if err != nil {
+		return ConnectionStat{}, fmt.Errorf("failed to parse netaddr, %s %s", f[3], f[4])
+	}
+
+	n := ConnectionStat{
+		Fd:     uint32(0), // not supported
+		Family: uint32(netFamily),
+		Type:   uint32(netType),
+		Laddr:  laddr,
+		Raddr:  raddr,
+		Pid:    int32(0), // not supported
+	}
+	if len(f) == 6 {
+		n.Status = f[5]
+	}
+
+	return n, nil
+}
+
+func parseNetstatAddr(local string, remote string, family uint32) (laddr Addr, raddr Addr, err error) {
+	parse := func(l string) (Addr, error) {
+		matches := portMatch.FindStringSubmatch(l)
+		if matches == nil {
+			return Addr{}, fmt.Errorf("wrong addr, %s", l)
+		}
+		host := matches[1]
+		port := matches[2]
+		if host == "*" {
+			switch family {
+			case syscall.AF_INET:
+				host = "0.0.0.0"
+			case syscall.AF_INET6:
+				host = "::"
+			default:
+				return Addr{}, fmt.Errorf("unknown family, %d", family)
+			}
+		}
+		lport, err := strconv.Atoi(port)
+		if err != nil {
+			return Addr{}, err
+		}
+		return Addr{IP: host, Port: uint32(lport)}, nil
+	}
+
+	laddr, err = parse(local)
+	if remote != "*.*" { // remote addr exists
+		raddr, err = parse(remote)
+		if err != nil {
+			return laddr, raddr, err
+		}
+	}
+
+	return laddr, raddr, err
+}
+
+// Return a list of network connections opened.
+func Connections(kind string) ([]ConnectionStat, error) {
+	return ConnectionsWithContext(context.Background(), kind)
+}
+
+func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
+	var ret []ConnectionStat
+
+	args := []string{"-na"}
+	switch strings.ToLower(kind) {
+	default:
+		fallthrough
+	case "":
+		fallthrough
+	case "all":
+		fallthrough
+	case "inet":
+		// nothing to add
+	case "inet4":
+		args = append(args, "-finet")
+	case "inet6":
+		args = append(args, "-finet6")
+	case "tcp":
+		args = append(args, "-ptcp")
+	case "tcp4":
+		args = append(args, "-ptcp", "-finet")
+	case "tcp6":
+		args = append(args, "-ptcp", "-finet6")
+	case "udp":
+		args = append(args, "-pudp")
+	case "udp4":
+		args = append(args, "-pudp", "-finet")
+	case "udp6":
+		args = append(args, "-pudp", "-finet6")
+	case "unix":
+		return ret, common.ErrNotImplementedError
+	}
+
+	netstat, err := exec.LookPath("netstat")
+	if err != nil {
+		return nil, err
+	}
+	out, err := invoke.CommandWithContext(ctx, netstat, args...)
+
+	if err != nil {
+		return nil, err
+	}
+	lines := strings.Split(string(out), "\n")
+	for _, line := range lines {
+		if !(strings.HasPrefix(line, "tcp") || strings.HasPrefix(line, "udp")) {
+			continue
+		}
+		n, err := parseNetstatLine(line)
+		if err != nil {
+			continue
+		}
+
+		ret = append(ret, n)
+	}
+
+	return ret, nil
+}

vendor/github.com/shirou/gopsutil/net/net_unix.go

@@ -0,0 +1,96 @@
+// +build freebsd darwin
+
+package net
+
+import (
+	"context"
+	"strings"
+
+	"github.com/shirou/gopsutil/internal/common"
+)
+
+// Return a list of network connections opened.
+func Connections(kind string) ([]ConnectionStat, error) {
+	return ConnectionsWithContext(context.Background(), kind)
+}
+
+func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
+	return ConnectionsPid(kind, 0)
+}
+
+// Return a list of network connections opened returning at most `max`
+// connections for each running process.
+func ConnectionsMax(kind string, max int) ([]ConnectionStat, error) {
+	return ConnectionsMaxWithContext(context.Background(), kind, max)
+}
+
+func ConnectionsMaxWithContext(ctx context.Context, kind string, max int) ([]ConnectionStat, error) {
+	return []ConnectionStat{}, common.ErrNotImplementedError
+}
+
+// Return a list of network connections opened by a process.
+func ConnectionsPid(kind string, pid int32) ([]ConnectionStat, error) {
+	return ConnectionsPidWithContext(context.Background(), kind, pid)
+}
+
+func ConnectionsPidWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
+	var ret []ConnectionStat
+
+	args := []string{"-i"}
+	switch strings.ToLower(kind) {
+	default:
+		fallthrough
+	case "":
+		fallthrough
+	case "all":
+		fallthrough
+	case "inet":
+		args = append(args, "tcp", "-i", "udp")
+	case "inet4":
+		args = append(args, "4")
+	case "inet6":
+		args = append(args, "6")
+	case "tcp":
+		args = append(args, "tcp")
+	case "tcp4":
+		args = append(args, "4tcp")
+	case "tcp6":
+		args = append(args, "6tcp")
+	case "udp":
+		args = append(args, "udp")
+	case "udp4":
+		args = append(args, "6udp")
+	case "udp6":
+		args = append(args, "6udp")
+	case "unix":
+		args = []string{"-U"}
+	}
+
+	r, err := common.CallLsofWithContext(ctx, invoke, pid, args...)
+	if err != nil {
+		return nil, err
+	}
+	for _, rr := range r {
+		if strings.HasPrefix(rr, "COMMAND") {
+			continue
+		}
+		n, err := parseNetLine(rr)
+		if err != nil {
+
+			continue
+		}
+
+		ret = append(ret, n)
+	}
+
+	return ret, nil
+}
+
+// Return up to `max` network connections opened by a process.
+func ConnectionsPidMax(kind string, pid int32, max int) ([]ConnectionStat, error) {
+	return ConnectionsPidMaxWithContext(context.Background(), kind, pid, max)
+}
+
+func ConnectionsPidMaxWithContext(ctx context.Context, kind string, pid int32, max int) ([]ConnectionStat, error) {
+	return []ConnectionStat{}, common.ErrNotImplementedError
+}

vendor/github.com/shirou/gopsutil/net/net_windows.go

@@ -0,0 +1,120 @@
+// +build windows
+
+package net
+
+import (
+	"context"
+	"errors"
+	"net"
+	"os"
+
+	"github.com/shirou/gopsutil/internal/common"
+	"golang.org/x/sys/windows"
+)
+
+var (
+	modiphlpapi             = windows.NewLazyDLL("iphlpapi.dll")
+	procGetExtendedTCPTable = modiphlpapi.NewProc("GetExtendedTcpTable")
+	procGetExtendedUDPTable = modiphlpapi.NewProc("GetExtendedUdpTable")
+)
+
+const (
+	TCPTableBasicListener = iota
+	TCPTableBasicConnections
+	TCPTableBasicAll
+	TCPTableOwnerPIDListener
+	TCPTableOwnerPIDConnections
+	TCPTableOwnerPIDAll
+	TCPTableOwnerModuleListener
+	TCPTableOwnerModuleConnections
+	TCPTableOwnerModuleAll
+)
+
+func IOCounters(pernic bool) ([]IOCountersStat, error) {
+	return IOCountersWithContext(context.Background(), pernic)
+}
+
+func IOCountersWithContext(ctx context.Context, pernic bool) ([]IOCountersStat, error) {
+	ifs, err := net.Interfaces()
+	if err != nil {
+		return nil, err
+	}
+	var ret []IOCountersStat
+
+	for _, ifi := range ifs {
+		c := IOCountersStat{
+			Name: ifi.Name,
+		}
+
+		row := windows.MibIfRow{Index: uint32(ifi.Index)}
+		e := windows.GetIfEntry(&row)
+		if e != nil {
+			return nil, os.NewSyscallError("GetIfEntry", e)
+		}
+		c.BytesSent = uint64(row.OutOctets)
+		c.BytesRecv = uint64(row.InOctets)
+		c.PacketsSent = uint64(row.OutUcastPkts)
+		c.PacketsRecv = uint64(row.InUcastPkts)
+		c.Errin = uint64(row.InErrors)
+		c.Errout = uint64(row.OutErrors)
+		c.Dropin = uint64(row.InDiscards)
+		c.Dropout = uint64(row.OutDiscards)
+
+		ret = append(ret, c)
+	}
+
+	if pernic == false {
+		return getIOCountersAll(ret)
+	}
+	return ret, nil
+}
+
+// NetIOCountersByFile is an method which is added just a compatibility for linux.
+func IOCountersByFile(pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCountersByFileWithContext(context.Background(), pernic, filename)
+}
+
+func IOCountersByFileWithContext(ctx context.Context, pernic bool, filename string) ([]IOCountersStat, error) {
+	return IOCounters(pernic)
+}
+
+// Return a list of network connections opened by a process
+func Connections(kind string) ([]ConnectionStat, error) {
+	return ConnectionsWithContext(context.Background(), kind)
+}
+
+func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
+	var ret []ConnectionStat
+
+	return ret, common.ErrNotImplementedError
+}
+
+// Return a list of network connections opened returning at most `max`
+// connections for each running process.
+func ConnectionsMax(kind string, max int) ([]ConnectionStat, error) {
+	return ConnectionsMaxWithContext(context.Background(), kind, max)
+}
+
+func ConnectionsMaxWithContext(ctx context.Context, kind string, max int) ([]ConnectionStat, error) {
+	return []ConnectionStat{}, common.ErrNotImplementedError
+}
+
+func FilterCounters() ([]FilterStat, error) {
+	return FilterCountersWithContext(context.Background())
+}
+
+func FilterCountersWithContext(ctx context.Context) ([]FilterStat, error) {
+	return nil, errors.New("NetFilterCounters not implemented for windows")
+}
+
+// NetProtoCounters returns network statistics for the entire system
+// If protocols is empty then all protocols are returned, otherwise
+// just the protocols in the list are returned.
+// Not Implemented for Windows
+func ProtoCounters(protocols []string) ([]ProtoCountersStat, error) {
+	return ProtoCountersWithContext(context.Background(), protocols)
+}
+
+func ProtoCountersWithContext(ctx context.Context, protocols []string) ([]ProtoCountersStat, error) {
+	return nil, errors.New("NetProtoCounters not implemented for windows")
+}