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util/linuxfw: don't try cleaning iptables on gokrazy

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It just generates log spam.

Updates #12277

Change-Id: I5f65c0859e86de0a5349f9d26c9805e7c26b9371
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2024-05-29 20:46:02 -07:00 committed by Brad Fitzpatrick
parent 0acb61fbf8
commit 909a292a8d
1 changed files with 6 additions and 0 deletions
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6
util/linuxfw/iptables_runner.go
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@ -20,6 +20,7 @@
"tailscale.com/net/tsaddr"
"tailscale.com/types/logger"
"tailscale.com/util/multierr"
"tailscale.com/version/distro"
)
// isNotExistError needs to be overridden in tests that rely on distinguishing
@ -653,6 +654,11 @@ func (i *iptablesRunner) DelMagicsockPortRule(port uint16, network string) error
// IPTablesCleanUp removes all Tailscale added iptables rules.
// Any errors that occur are logged to the provided logf.
func IPTablesCleanUp(logf logger.Logf) {
if distro.Get() == distro.Gokrazy {
// Gokrazy uses nftables and doesn't have the "iptables" command.
// Avoid log spam on cleanup. (#12277)
return
}
err := clearRules(iptables.ProtocolIPv4, logf)
if err != nil {
logf("linuxfw: clear iptables: %v", err)