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feat(netlink): detect ipv6 support level (#2523)

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- add option `IPV6_CHECK_ADDRESSESES=[2001:4860:4860::8888]:53,[2606:4700:4700::1111]:53`
- gluetun needs access to the addresses above through the host firewall, to test ipv6 support before setting up the vpn
This commit is contained in:
Quentin McGaw
2026-04-07 13:48:15 +02:00
committed by GitHub
parent 1ae85aa5d0
commit 11883aa830
20 changed files with 498 additions and 67 deletions
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internal/vpn/wireguard.go
+5 -3
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@@ -7,6 +7,7 @@ import (
"github.com/qdm12/gluetun/internal/configuration/settings"
"github.com/qdm12/gluetun/internal/models"
"github.com/qdm12/gluetun/internal/netlink"
"github.com/qdm12/gluetun/internal/provider"
"github.com/qdm12/gluetun/internal/wireguard"
"github.com/qdm12/gosettings"
@@ -16,15 +17,16 @@ import (
// It returns a serverName for port forwarding (PIA) and an error if it fails.
func setupWireguard(ctx context.Context, netlinker NetLinker,
fw Firewall, providerConf provider.Provider,
settings settings.VPN, ipv6Supported bool, logger wireguard.Logger) (
settings settings.VPN, ipv6SupportLevel netlink.IPv6SupportLevel, logger wireguard.Logger) (
wireguarder *wireguard.Wireguard, connection models.Connection, err error,
) {
connection, err = providerConf.GetConnection(settings.Provider.ServerSelection, ipv6Supported)
ipv6Internet := ipv6SupportLevel == netlink.IPv6Internet
connection, err = providerConf.GetConnection(settings.Provider.ServerSelection, ipv6Internet)
if err != nil {
return nil, models.Connection{}, fmt.Errorf("finding a VPN server: %w", err)
}
wireguardSettings := buildWireguardSettings(connection, settings.Wireguard, ipv6Supported)
wireguardSettings := buildWireguardSettings(connection, settings.Wireguard, ipv6SupportLevel.IsSupported())
logger.Debug("Wireguard server public key: " + wireguardSettings.PublicKey)
logger.Debug("Wireguard client private key: " + gosettings.ObfuscateKey(wireguardSettings.PrivateKey))