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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || windows
package net
import (
"syscall"
"testing"
"time"
)
func getCurrentKeepAliveSettings(fd fdType) (cfg KeepAliveConfig, err error) {
tcpKeepAlive, err := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_KEEPALIVE)
if err != nil {
return
}
tcpKeepAliveIdle, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPIDLE)
if err != nil {
return
}
tcpKeepAliveInterval, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPINTVL)
if err != nil {
return
}
tcpKeepAliveCount, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPCNT)
if err != nil {
return
}
cfg = KeepAliveConfig{
Enable: tcpKeepAlive != 0,
Idle: time.Duration(tcpKeepAliveIdle) * time.Second,
Interval: time.Duration(tcpKeepAliveInterval) * time.Second,
Count: tcpKeepAliveCount,
}
return
}
func verifyKeepAliveSettings(t *testing.T, fd fdType, oldCfg, cfg KeepAliveConfig) {
if cfg.Idle == 0 {
cfg.Idle = defaultTCPKeepAliveIdle
}
if cfg.Interval == 0 {
cfg.Interval = defaultTCPKeepAliveInterval
}
if cfg.Count == 0 {
cfg.Count = defaultTCPKeepAliveCount
}
if cfg.Idle == -1 {
cfg.Idle = oldCfg.Idle
}
if cfg.Interval == -1 {
cfg.Interval = oldCfg.Interval
}
if cfg.Count == -1 {
cfg.Count = oldCfg.Count
}
tcpKeepAlive, err := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_KEEPALIVE)
if err != nil {
t.Fatal(err)
}
if (tcpKeepAlive != 0) != cfg.Enable {
t.Fatalf("SO_KEEPALIVE: got %t; want %t", tcpKeepAlive != 0, cfg.Enable)
}
tcpKeepAliveIdle, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPIDLE)
if err != nil {
t.Fatal(err)
}
if time.Duration(tcpKeepAliveIdle)*time.Second != cfg.Idle {
t.Fatalf("TCP_KEEPIDLE: got %ds; want %v", tcpKeepAliveIdle, cfg.Idle)
}
tcpKeepAliveInterval, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPINTVL)
if err != nil {
t.Fatal(err)
}
if time.Duration(tcpKeepAliveInterval)*time.Second != cfg.Interval {
t.Fatalf("TCP_KEEPINTVL: got %ds; want %v", tcpKeepAliveInterval, cfg.Interval)
}
tcpKeepAliveCount, err := syscall.GetsockoptInt(fd, syscall.IPPROTO_TCP, syscall_TCP_KEEPCNT)
if err != nil {
t.Fatal(err)
}
if tcpKeepAliveCount != cfg.Count {
t.Fatalf("TCP_KEEPCNT: got %d; want %d", tcpKeepAliveCount, cfg.Count)
}
}
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