mirror of
https://github.com/v2rayA/v2rayA.git
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Markson Joe Hon
32 lines
577 B
Go
32 lines
577 B
Go
//go:build linux
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// +build linux
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package ipforward
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import (
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"fmt"
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"os"
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"strings"
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)
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func IsIpForwardOn() bool {
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out, err := os.ReadFile("/proc/sys/net/ipv4/ip_forward")
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return err == nil && strings.TrimSpace(string(out)) == "1"
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}
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func WriteIpForward(on bool) (err error) {
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defer func() {
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if err != nil {
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err = fmt.Errorf("WriteIpForward: %w", err)
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}
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}()
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val := "0"
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if on {
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val = "1"
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}
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err = os.WriteFile("/proc/sys/net/ipv4/ip_forward", []byte(val), 0644)
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// ipv6
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_ = os.WriteFile("/proc/sys/net/ipv6/conf/all/forwarding", []byte(val), 0644)
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return
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}
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