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chore(all): replace netlink library for more flexibility (#3107)

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This commit is contained in:
Quentin McGaw
2026-01-27 10:11:39 +01:00
committed by GitHub
parent e292a4c9be
commit facc6df3be
50 changed files with 1074 additions and 579 deletions
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internal/vpn/tunnelup.go
+3 -3
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@@ -172,7 +172,7 @@ func updateToMaxMTU(ctx context.Context, vpnInterface string,
// the new MTU is set again, but this is necessary to find the highest valid MTU.
logger.Debugf("VPN interface %s MTU temporarily set to %d", vpnInterface, vpnLinkMTU)
err = netlinker.LinkSetMTU(link, vpnLinkMTU)
err = netlinker.LinkSetMTU(link.Index, vpnLinkMTU)
if err != nil {
return fmt.Errorf("setting VPN interface %s MTU to %d: %w", vpnInterface, vpnLinkMTU, err)
}
@@ -183,14 +183,14 @@ func updateToMaxMTU(ctx context.Context, vpnInterface string,
case err == nil:
logger.Infof("setting VPN interface %s MTU to maximum valid MTU %d", vpnInterface, vpnLinkMTU)
case errors.Is(err, pmtud.ErrMTUNotFound) || errors.Is(err, pmtud.ErrICMPNotPermitted):
vpnLinkMTU = uint32(originalMTU)
vpnLinkMTU = originalMTU
logger.Infof("reverting VPN interface %s MTU to %d (due to: %s)",
vpnInterface, originalMTU, err)
default:
return fmt.Errorf("path MTU discovering: %w", err)
}
err = netlinker.LinkSetMTU(link, vpnLinkMTU)
err = netlinker.LinkSetMTU(link.Index, vpnLinkMTU)
if err != nil {
return fmt.Errorf("setting VPN interface %s MTU to %d: %w", vpnInterface, vpnLinkMTU, err)
}