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netconfig: use sysctl format for easier copy&paste

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This commit is contained in:
Michael Stapelberg 2018-12-25 14:08:14 +01:00
parent 9012520052
commit 725262d376
1 changed files with 11 additions and 10 deletions
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21
internal/netconfig/netconfig.go
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@ -678,16 +678,17 @@ func applyFirewall(dir string) error {
}
func applySysctl() error {
if err := ioutil.WriteFile("/proc/sys/net/ipv4/ip_forward", []byte("1"), 0644); err != nil {
return fmt.Errorf("sysctl(net.ipv4.ip_forward=1): %v", err)
}
if err := ioutil.WriteFile("/proc/sys/net/ipv6/conf/all/forwarding", []byte("1"), 0644); err != nil {
return fmt.Errorf("sysctl(net.ipv6.conf.all.forwarding=1): %v", err)
}
if err := ioutil.WriteFile("/proc/sys/net/ipv6/conf/uplink0/accept_ra", []byte("2"), 0644); err != nil {
return fmt.Errorf("sysctl(net.ipv6.conf.uplink0.accept_ra=2): %v", err)
for _, ctl := range []string{
"net.ipv4.ip_forward=1",
"net.ipv6.conf.all.forwarding=1",
"net.ipv6.conf.uplink0.accept_ra=2",
} {
idx := strings.Index(ctl, "=")
key, val := ctl[:idx], ctl[idx+1:]
fn := strings.Replace(key, ".", "/", -1)
if err := ioutil.WriteFile("/proc/sys/"+fn, []byte(val), 0644); err != nil {
return fmt.Errorf("sysctl(%v=%v): %v", key, val, err)
}
}
return nil