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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/openvpn.go
+5 -3
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@@ -6,6 +6,7 @@ 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/openvpn"
"github.com/qdm12/gluetun/internal/provider"
)
@@ -14,15 +15,16 @@ import (
// It returns a serverName for port forwarding (PIA) and an error if it fails.
func setupOpenVPN(ctx context.Context, fw Firewall,
openvpnConf OpenVPN, providerConf provider.Provider,
settings settings.VPN, ipv6Supported bool, starter Cmder,
settings settings.VPN, ipv6SupportLevel netlink.IPv6SupportLevel, starter Cmder,
logger openvpn.Logger) (runner *openvpn.Runner, 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 valid server connection: %w", err)
}
lines := providerConf.OpenVPNConfig(connection, settings.OpenVPN, ipv6Supported)
lines := providerConf.OpenVPNConfig(connection, settings.OpenVPN, ipv6SupportLevel.IsSupported())
if err := openvpnConf.WriteConfig(lines); err != nil {
return nil, models.Connection{}, fmt.Errorf("writing configuration to file: %w", err)