mirror of
https://github.com/evilsocket/opensnitch.git
synced 2025-03-04 08:34:40 +01:00
added ui ping/pong
This commit is contained in:
evilsocket
parent
36c9b515f1
commit
b5b4a56a45
4 changed files with 153 additions and 36 deletions
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@ -100,9 +100,11 @@ func onPacket(packet netfilter.NFPacket) {
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return
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}
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// search a match in preloaded rules
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r := rules.FindFirstMatch(con)
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// no rule matched, prompt the user
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if r == nil {
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// no rule matched, send a request to the
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// UI client if connected and running
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r = uiClient.Ask(con)
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}
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@ -1,6 +1,7 @@
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package ui
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import (
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"fmt"
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"net"
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"sync"
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"time"
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@ -44,10 +45,20 @@ func NewClient(path string) *Client {
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func (c *Client) poller() {
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log.Debug("UI service poller started for socket %s", c.socketPath)
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t := time.NewTicker(time.Second * 1)
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for _ = range t.C {
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err := c.connect()
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if err != nil {
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for ts := range t.C {
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if err := c.connect(); err != nil {
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log.Warning("Error while connecting to UI service: %s", err)
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continue
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}
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if c.con.GetState() == connectivity.Ready {
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if err := c.ping(ts); err != nil {
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log.Warning("Error while pinging UI service: %s", err)
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} else {
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log.Debug("Got pong")
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}
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} else {
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log.Debug("Skipped ping/pong, connection not ready.")
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}
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}
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}
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@ -73,6 +84,29 @@ func (c *Client) connect() (err error) {
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return nil
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}
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func (c *Client) ping(ts time.Time) (err error) {
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c.Lock()
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defer c.Unlock()
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if c.con == nil || c.client == nil {
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return fmt.Errorf("service is not connected.")
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Second)
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defer cancel()
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reqId := uint64(ts.UnixNano())
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pong, err := c.client.Ping(ctx, &protocol.PingRequest{Id: reqId})
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if err != nil {
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return err
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}
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if pong.Id != reqId {
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return fmt.Errorf("Expected pong with id 0x%x, got 0x%x", reqId, pong.Id)
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}
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return nil
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}
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func (c *Client) Ask(con *conman.Connection) *rule.Rule {
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c.Lock()
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defer c.Unlock()
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@ -8,6 +8,8 @@ It is generated from these files:
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ui.proto
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It has these top-level messages:
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PingRequest
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PingReply
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RuleRequest
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RuleReply
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*/
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@ -33,6 +35,38 @@ var _ = math.Inf
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// proto package needs to be updated.
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const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
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type PingRequest struct {
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Id uint64 `protobuf:"varint,1,opt,name=id" json:"id,omitempty"`
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}
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func (m *PingRequest) Reset() { *m = PingRequest{} }
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func (m *PingRequest) String() string { return proto.CompactTextString(m) }
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func (*PingRequest) ProtoMessage() {}
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func (*PingRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
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func (m *PingRequest) GetId() uint64 {
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if m != nil {
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return m.Id
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}
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return 0
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}
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type PingReply struct {
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Id uint64 `protobuf:"varint,1,opt,name=id" json:"id,omitempty"`
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}
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func (m *PingReply) Reset() { *m = PingReply{} }
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func (m *PingReply) String() string { return proto.CompactTextString(m) }
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func (*PingReply) ProtoMessage() {}
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func (*PingReply) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
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func (m *PingReply) GetId() uint64 {
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if m != nil {
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return m.Id
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}
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return 0
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}
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type RuleRequest struct {
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Protocol string `protobuf:"bytes,1,opt,name=protocol" json:"protocol,omitempty"`
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SrcIp string `protobuf:"bytes,2,opt,name=src_ip,json=srcIp" json:"src_ip,omitempty"`
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@ -48,7 +82,7 @@ type RuleRequest struct {
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func (m *RuleRequest) Reset() { *m = RuleRequest{} }
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func (m *RuleRequest) String() string { return proto.CompactTextString(m) }
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func (*RuleRequest) ProtoMessage() {}
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func (*RuleRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
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func (*RuleRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
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func (m *RuleRequest) GetProtocol() string {
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if m != nil {
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@ -124,7 +158,7 @@ type RuleReply struct {
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func (m *RuleReply) Reset() { *m = RuleReply{} }
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func (m *RuleReply) String() string { return proto.CompactTextString(m) }
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func (*RuleReply) ProtoMessage() {}
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func (*RuleReply) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
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func (*RuleReply) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
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func (m *RuleReply) GetName() string {
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if m != nil {
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@ -162,6 +196,8 @@ func (m *RuleReply) GetWith() string {
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}
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func init() {
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proto.RegisterType((*PingRequest)(nil), "ui.PingRequest")
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proto.RegisterType((*PingReply)(nil), "ui.PingReply")
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proto.RegisterType((*RuleRequest)(nil), "ui.RuleRequest")
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proto.RegisterType((*RuleReply)(nil), "ui.RuleReply")
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}
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@ -177,6 +213,7 @@ const _ = grpc.SupportPackageIsVersion4
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// Client API for UI service
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type UIClient interface {
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Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingReply, error)
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AskRule(ctx context.Context, in *RuleRequest, opts ...grpc.CallOption) (*RuleReply, error)
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}
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@ -188,6 +225,15 @@ func NewUIClient(cc *grpc.ClientConn) UIClient {
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return &uIClient{cc}
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}
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func (c *uIClient) Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingReply, error) {
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out := new(PingReply)
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err := grpc.Invoke(ctx, "/ui.UI/Ping", in, out, c.cc, opts...)
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if err != nil {
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return nil, err
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}
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return out, nil
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}
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func (c *uIClient) AskRule(ctx context.Context, in *RuleRequest, opts ...grpc.CallOption) (*RuleReply, error) {
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out := new(RuleReply)
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err := grpc.Invoke(ctx, "/ui.UI/AskRule", in, out, c.cc, opts...)
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@ -200,6 +246,7 @@ func (c *uIClient) AskRule(ctx context.Context, in *RuleRequest, opts ...grpc.Ca
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// Server API for UI service
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type UIServer interface {
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Ping(context.Context, *PingRequest) (*PingReply, error)
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AskRule(context.Context, *RuleRequest) (*RuleReply, error)
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}
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@ -207,6 +254,24 @@ func RegisterUIServer(s *grpc.Server, srv UIServer) {
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s.RegisterService(&_UI_serviceDesc, srv)
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}
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func _UI_Ping_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
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in := new(PingRequest)
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if err := dec(in); err != nil {
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return nil, err
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}
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if interceptor == nil {
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return srv.(UIServer).Ping(ctx, in)
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}
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info := &grpc.UnaryServerInfo{
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Server: srv,
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FullMethod: "/ui.UI/Ping",
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}
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handler := func(ctx context.Context, req interface{}) (interface{}, error) {
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return srv.(UIServer).Ping(ctx, req.(*PingRequest))
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}
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return interceptor(ctx, in, info, handler)
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}
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func _UI_AskRule_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
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in := new(RuleRequest)
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if err := dec(in); err != nil {
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@ -229,6 +294,10 @@ var _UI_serviceDesc = grpc.ServiceDesc{
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ServiceName: "ui.UI",
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HandlerType: (*UIServer)(nil),
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Methods: []grpc.MethodDesc{
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{
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MethodName: "Ping",
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Handler: _UI_Ping_Handler,
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},
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{
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MethodName: "AskRule",
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Handler: _UI_AskRule_Handler,
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@ -241,24 +310,27 @@ var _UI_serviceDesc = grpc.ServiceDesc{
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func init() { proto.RegisterFile("ui.proto", fileDescriptor0) }
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var fileDescriptor0 = []byte{
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// 300 bytes of a gzipped FileDescriptorProto
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}
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@ -3,19 +3,28 @@ syntax = "proto3";
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package ui;
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service UI {
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rpc AskRule (RuleRequest) returns (RuleReply) {}
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rpc Ping(PingRequest) returns (PingReply) {}
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rpc AskRule (RuleRequest) returns (RuleReply) {}
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}
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message PingRequest {
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uint64 id = 1;
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}
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message PingReply {
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uint64 id = 1;
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}
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message RuleRequest {
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string protocol = 1;
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string src_ip = 2;
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uint32 src_port = 3;
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string dst_ip = 4;
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string dst_host = 5;
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uint32 dst_port = 6;
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uint32 process_id = 7;
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string process_path = 8;
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repeated string process_args = 9;
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string protocol = 1;
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string src_ip = 2;
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uint32 src_port = 3;
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string dst_ip = 4;
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string dst_host = 5;
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uint32 dst_port = 6;
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uint32 process_id = 7;
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string process_path = 8;
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repeated string process_args = 9;
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}
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message RuleReply {
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