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// SPDX-License-Identifier: BSD-3-Clause
//go:build freebsd || darwin
package net
import (
"context"
"fmt"
"net"
"strconv"
"strings"
"syscall"
"github.com/shirou/gopsutil/v4/internal/common"
)
func ConnectionsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
return ConnectionsPidWithContext(ctx, kind, 0)
}
func ConnectionsMaxWithContext(_ context.Context, _ string, _ int) ([]ConnectionStat, error) {
return []ConnectionStat{}, common.ErrNotImplementedError
}
func ConnectionsPidWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
var ret []ConnectionStat
args := []string{"-i"}
switch strings.ToLower(kind) {
default:
fallthrough
case "", "all", "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, "4udp")
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
}
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 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.ParseInt(f[1], 10, 32)
if err != nil {
return ConnectionStat{}, err
}
fd, err := strconv.ParseInt(strings.Trim(f[3], "u"), 10, 32)
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 parseAddr(l string) (Addr, error) {
host, port, err := net.SplitHostPort(l)
if err != nil {
return Addr{}, fmt.Errorf("wrong addr, %s", l)
}
lport, err := strconv.ParseInt(port, 10, 32)
if err != nil {
return Addr{}, err
}
return Addr{IP: host, Port: uint32(lport)}, nil
}
func parseNetAddr(line string) (laddr, raddr Addr, err error) {
addrs := strings.Split(line, "->")
if len(addrs) == 0 {
return laddr, raddr, fmt.Errorf("wrong netaddr, %s", line)
}
laddr, err = parseAddr(addrs[0])
if len(addrs) == 2 { // remote addr exists
raddr, err = parseAddr(addrs[1])
if err != nil {
return laddr, raddr, err
}
}
return laddr, raddr, err
}
func ConnectionsPidMaxWithContext(_ context.Context, _ string, _ int32, _ int) ([]ConnectionStat, error) {
return []ConnectionStat{}, common.ErrNotImplementedError
}
func ConnectionsWithoutUidsWithContext(ctx context.Context, kind string) ([]ConnectionStat, error) {
return ConnectionsMaxWithoutUidsWithContext(ctx, kind, 0)
}
func ConnectionsMaxWithoutUidsWithContext(ctx context.Context, kind string, maxConn int) ([]ConnectionStat, error) {
return ConnectionsPidMaxWithoutUidsWithContext(ctx, kind, 0, maxConn)
}
func ConnectionsPidWithoutUidsWithContext(ctx context.Context, kind string, pid int32) ([]ConnectionStat, error) {
return ConnectionsPidMaxWithoutUidsWithContext(ctx, kind, pid, 0)
}
func ConnectionsPidMaxWithoutUidsWithContext(ctx context.Context, kind string, pid int32, maxConn int) ([]ConnectionStat, error) {
return connectionsPidMaxWithoutUidsWithContext(ctx, kind, pid, maxConn)
}
func connectionsPidMaxWithoutUidsWithContext(_ context.Context, _ string, _ int32, _ int) ([]ConnectionStat, error) {
return []ConnectionStat{}, common.ErrNotImplementedError
}
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