Feature/port forwarding client ingress (#3242)

Client-side forward handling

Co-authored-by: Viktor Liu <17948409+lixmal@users.noreply.github.com>

---------

Co-authored-by: Viktor Liu <17948409+lixmal@users.noreply.github.com>

client/proto/daemon.proto

@@ -8,6 +8,8 @@ option go_package = "/proto";
 
 package daemon;
 
+message EmptyRequest {}
+
 service DaemonService {
   // Login uses setup key to prepare configuration for the daemon.
   rpc Login(LoginRequest) returns (LoginResponse) {}
@@ -37,6 +39,8 @@ service DaemonService {
   // Deselect specific routes
   rpc DeselectNetworks(SelectNetworksRequest) returns (SelectNetworksResponse) {}
 
+  rpc ForwardingRules(EmptyRequest) returns (ForwardingRulesResponse) {}
+
   // DebugBundle creates a debug bundle
   rpc DebugBundle(DebugBundleRequest) returns (DebugBundleResponse) {}
 
@@ -249,8 +253,10 @@ message FullStatus {
   repeated PeerState peers = 4;
   repeated RelayState relays = 5;
   repeated NSGroupState dns_servers = 6;
+  int32 NumberOfForwardingRules = 8;
 }
 
+// Networks
 message ListNetworksRequest {
 }
 
@@ -271,7 +277,6 @@ message IPList {
   repeated string ips = 1;
 }
 
-
 message Network {
   string ID = 1;
   string range = 2;
@@ -280,6 +285,33 @@ message Network {
   map<string, IPList> resolvedIPs = 5;
 }
 
+// ForwardingRules
+message PortInfo {
+  oneof portSelection {
+    uint32 port = 1;
+    Range range = 2;
+  }
+
+  message Range {
+    uint32 start = 1;
+    uint32 end = 2;
+  }
+}
+
+message ForwardingRule {
+  string protocol = 1;
+  PortInfo destinationPort = 2;
+  string translatedAddress = 3;
+  string translatedHostname = 4;
+  PortInfo translatedPort = 5;
+}
+
+message ForwardingRulesResponse {
+  repeated ForwardingRule rules = 1;
+}
+
+
+// DebugBundler
 message DebugBundleRequest {
   bool anonymize = 1;
   string status = 2;

client/proto/daemon_grpc.pb.go

@@ -37,6 +37,7 @@ type DaemonServiceClient interface {
 	SelectNetworks(ctx context.Context, in *SelectNetworksRequest, opts ...grpc.CallOption) (*SelectNetworksResponse, error)
 	// Deselect specific routes
 	DeselectNetworks(ctx context.Context, in *SelectNetworksRequest, opts ...grpc.CallOption) (*SelectNetworksResponse, error)
+	ForwardingRules(ctx context.Context, in *EmptyRequest, opts ...grpc.CallOption) (*ForwardingRulesResponse, error)
 	// DebugBundle creates a debug bundle
 	DebugBundle(ctx context.Context, in *DebugBundleRequest, opts ...grpc.CallOption) (*DebugBundleResponse, error)
 	// GetLogLevel gets the log level of the daemon
@@ -142,6 +143,15 @@ func (c *daemonServiceClient) DeselectNetworks(ctx context.Context, in *SelectNe
 	return out, nil
 }
 
+func (c *daemonServiceClient) ForwardingRules(ctx context.Context, in *EmptyRequest, opts ...grpc.CallOption) (*ForwardingRulesResponse, error) {
+	out := new(ForwardingRulesResponse)
+	err := c.cc.Invoke(ctx, "/daemon.DaemonService/ForwardingRules", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *daemonServiceClient) DebugBundle(ctx context.Context, in *DebugBundleRequest, opts ...grpc.CallOption) (*DebugBundleResponse, error) {
 	out := new(DebugBundleResponse)
 	err := c.cc.Invoke(ctx, "/daemon.DaemonService/DebugBundle", in, out, opts...)
@@ -228,6 +238,7 @@ type DaemonServiceServer interface {
 	SelectNetworks(context.Context, *SelectNetworksRequest) (*SelectNetworksResponse, error)
 	// Deselect specific routes
 	DeselectNetworks(context.Context, *SelectNetworksRequest) (*SelectNetworksResponse, error)
+	ForwardingRules(context.Context, *EmptyRequest) (*ForwardingRulesResponse, error)
 	// DebugBundle creates a debug bundle
 	DebugBundle(context.Context, *DebugBundleRequest) (*DebugBundleResponse, error)
 	// GetLogLevel gets the log level of the daemon
@@ -276,6 +287,9 @@ func (UnimplementedDaemonServiceServer) SelectNetworks(context.Context, *SelectN
 func (UnimplementedDaemonServiceServer) DeselectNetworks(context.Context, *SelectNetworksRequest) (*SelectNetworksResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method DeselectNetworks not implemented")
 }
+func (UnimplementedDaemonServiceServer) ForwardingRules(context.Context, *EmptyRequest) (*ForwardingRulesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ForwardingRules not implemented")
+}
 func (UnimplementedDaemonServiceServer) DebugBundle(context.Context, *DebugBundleRequest) (*DebugBundleResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method DebugBundle not implemented")
 }
@@ -472,6 +486,24 @@ func _DaemonService_DeselectNetworks_Handler(srv interface{}, ctx context.Contex
 	return interceptor(ctx, in, info, handler)
 }
 
+func _DaemonService_ForwardingRules_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(EmptyRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DaemonServiceServer).ForwardingRules(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/daemon.DaemonService/ForwardingRules",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DaemonServiceServer).ForwardingRules(ctx, req.(*EmptyRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _DaemonService_DebugBundle_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(DebugBundleRequest)
 	if err := dec(in); err != nil {
@@ -641,6 +673,10 @@ var DaemonService_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "DeselectNetworks",
 			Handler:    _DaemonService_DeselectNetworks_Handler,
 		},
+		{
+			MethodName: "ForwardingRules",
+			Handler:    _DaemonService_ForwardingRules_Handler,
+		},
 		{
 			MethodName: "DebugBundle",
 			Handler:    _DaemonService_DebugBundle_Handler,