proxy: add dns resolver settings

Author: xcolwell

model/network_client_model.go

@@ -27,6 +27,7 @@ import (
 	"github.com/urnetwork/server/session"
 	// "github.com/urnetwork/server/ulid"
 	// "github.com/urnetwork/server/jwt"
+	"github.com/urnetwork/connect"
 )
 
 const NetworkClientHandlerHeartbeatTimeout = 60 * time.Second
@@ -266,6 +267,10 @@ func AuthNetworkClient(
 				)
 			}
 
+			if proxyDeviceState.Location != nil {
+				proxyDeviceState.DnsResolverSettings = connect.RegionalDnsResolverSettings(proxyDeviceState.Location.CountryCode)
+			}
+
 			proxyDeviceConfig := &ProxyDeviceConfig{
 				ProxyDeviceConnection: ProxyDeviceConnection{
 					ClientId: clientId,

model/network_client_proxy_model.go

@@ -14,6 +14,7 @@ import (
 
 	// "github.com/urnetwork/glog"
 
+	"github.com/urnetwork/connect"
 	"github.com/urnetwork/sdk"
 	"github.com/urnetwork/server"
 )
@@ -157,6 +158,8 @@ type ProxyDeviceState struct {
 	Location *sdk.ConnectLocation `json:"location"`
 
 	PerformanceProfile *sdk.PerformanceProfile `json:"performance_profile"`
+
+	DnsResolverSettings *connect.DnsResolverSettings `json:"dns_resolver_settings"`
 }
 
 func GetProxyDeviceConnection(ctx context.Context, proxyId server.Id) (proxyDeviceConnection *ProxyDeviceConnection) {

proxy/proxy_device.go

@@ -211,14 +211,17 @@ func NewProxyDevice(
 	deviceLocal.SetIngressSecurityPolicyGenerator(settings.IngressSecurityPolicyGenerator)
 	deviceLocal.SetEgressSecurityPolicyGenerator(settings.EgressSecurityPolicyGenerator)
 
+	var dnsResolverSettings *connect.DnsResolverSettings
 	if initialDeviceState := proxyDeviceConfig.InitialDeviceState; initialDeviceState != nil {
 		deviceLocal.SetPerformanceProfile(initialDeviceState.PerformanceProfile)
 		deviceLocal.SetConnectLocation(initialDeviceState.Location)
+		dnsResolverSettings = initialDeviceState.DnsResolverSettings
 	}
 
-	tnet, err := proxy.CreateNetTUN(
+	tnet, err := proxy.CreateNetTunWithResolver(
 		cancelCtx,
 		settings.Mtu,
+		dnsResolverSettings,
 	)
 	if err != nil {
 		return nil, err