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add tracking of window starts and ends

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Signed-off-by: Dmitri <dmitri.external@netbird.io>
This commit is contained in:
Dmitri
2026-06-15 17:32:35 +02:00
parent bebd92438d
commit 94ae34f33d
7 changed files with 147 additions and 97 deletions
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8
client/internal/netflow/manager.go
View File

@@ -297,9 +297,11 @@ func (m *Manager) send(event *nftypes.Event) error {
func toProtoEvent(publicKey []byte, event *nftypes.Event) *proto.FlowEvent {
protoEvent := &proto.FlowEvent{
EventId: event.ID[:],
Timestamp: timestamppb.New(event.Timestamp),
PublicKey: publicKey,
EventId: event.ID[:],
Timestamp: timestamppb.New(event.Timestamp),
PublicKey: publicKey,
WindowStart: timestamppb.New(event.WindowStart),
WindowEnd: timestamppb.New(event.WindowEnd),
FlowFields: &proto.FlowFields{
FlowId: event.FlowID[:],
RuleId: event.RuleID,

16
client/internal/netflow/store/event_aggregation_test.go
View File

@@ -40,10 +40,12 @@ func TestFlowAggregation(t *testing.T) {
for _, tt := range tests {
t.Run(tt.description+" "+protocol.String(), func(t *testing.T) {
store := NewAggregatingMemoryStore()
store.WindowEnd = time.Now().Add(5 * time.Second)
allExpected := make([]*types.Event, 0)
for i := 0; i < 2; i++ {
inEvents, expected := generateEvents(tt.eventTypes, protocol, types.Ingress, 0)
inEvents, expected := generateEvents(tt.eventTypes, protocol, types.Ingress, 0, store.WindowStart, store.WindowEnd)
for _, e := range inEvents {
store.StoreEvent(e)
}
@@ -86,9 +88,11 @@ func TestIcmpEventAggregation(t *testing.T) {
for _, tt := range tests {
t.Run(tt.description+" "+protocol.String(), func(t *testing.T) {
store := NewAggregatingMemoryStore()
store.WindowEnd = time.Now().Add(5 * time.Second)
allExpected := make([]*types.Event, 0)
for _, icmpType := range icmpTypes {
events, expected := generateEvents(tt.eventTypes, protocol, types.Ingress, icmpType)
events, expected := generateEvents(tt.eventTypes, protocol, types.Ingress, icmpType, store.WindowStart, store.WindowEnd)
for _, e := range events {
store.StoreEvent(e)
}
@@ -107,7 +111,7 @@ func ipAddr(a string) netip.Addr {
return addr
}
func generateEvents(eventTypes []types.Type, protocol types.Protocol, direction types.Direction, icmpType uint8) ([]*types.Event, *types.Event) {
func generateEvents(eventTypes []types.Type, protocol types.Protocol, direction types.Direction, icmpType uint8, windowStart, windowEnd time.Time) ([]*types.Event, *types.Event) {
var rxPackets, txPackets, rxBytes, txBytes uint64
inEvents := make([]*types.Event, 0)
ts := time.Now()
@@ -160,8 +164,10 @@ func generateEvents(eventTypes []types.Type, protocol types.Protocol, direction
}
}
aggregatedEvent := &types.Event{
ID: inEvents[0].ID,
Timestamp: inEvents[0].Timestamp,
ID: inEvents[0].ID,
Timestamp: inEvents[0].Timestamp,
WindowStart: windowStart,
WindowEnd: windowEnd,
EventFields: types.EventFields{
FlowID: flowId,
Type: inEvents[0].Type,

11
client/internal/netflow/store/memory.go
View File

@@ -24,6 +24,8 @@ type Memory struct {
type AggregatingMemory struct {
Memory
WindowStart time.Time
WindowEnd time.Time
}
func (m *Memory) StoreEvent(event *types.Event) {
@@ -57,15 +59,17 @@ func (m *Memory) DeleteEvents(ids []uuid.UUID) {
}
func NewAggregatingMemoryStore() *AggregatingMemory {
return &AggregatingMemory{Memory{events: make(map[uuid.UUID]*types.Event)}}
return &AggregatingMemory{WindowStart: time.Now(), Memory: Memory{events: make(map[uuid.UUID]*types.Event)}}
}
func (am *AggregatingMemory) ResetAggregationWindow() types.FlowEventAggregator {
am.mux.Lock()
defer am.mux.Unlock()
toret := AggregatingMemory{Memory: Memory{events: am.events}}
toret := AggregatingMemory{WindowStart: am.WindowStart, WindowEnd: time.Now(), Memory: Memory{events: am.events}}
am.events = make(map[uuid.UUID]*types.Event)
am.WindowStart = time.Now()
return &toret
}
@@ -99,6 +103,9 @@ func (am *AggregatingMemory) GetAggregatedEvents() []*types.Event {
case types.TypeEnd:
event.NumOfEnds += 1
}
event.WindowStart = am.WindowStart
event.WindowEnd = am.WindowEnd
continue
}

6
client/internal/netflow/types/types.go
View File

@@ -70,8 +70,10 @@ const (
)
type Event struct {
ID uuid.UUID
Timestamp time.Time
ID uuid.UUID
Timestamp time.Time
WindowStart time.Time
WindowEnd time.Time
EventFields
}

193
flow/proto/flow.pb.go
View File

@@ -134,9 +134,11 @@ type FlowEvent struct {
// When the event occurred
Timestamp *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
// Public key of the sending peer
PublicKey []byte `protobuf:"bytes,3,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
FlowFields *FlowFields `protobuf:"bytes,4,opt,name=flow_fields,json=flowFields,proto3" json:"flow_fields,omitempty"`
IsInitiator bool `protobuf:"varint,5,opt,name=isInitiator,proto3" json:"isInitiator,omitempty"`
PublicKey []byte `protobuf:"bytes,3,opt,name=public_key,json=publicKey,proto3" json:"public_key,omitempty"`
FlowFields *FlowFields `protobuf:"bytes,4,opt,name=flow_fields,json=flowFields,proto3" json:"flow_fields,omitempty"`
IsInitiator bool `protobuf:"varint,5,opt,name=isInitiator,proto3" json:"isInitiator,omitempty"`
WindowStart *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=window_start,json=windowStart,proto3" json:"window_start,omitempty"`
WindowEnd *timestamppb.Timestamp `protobuf:"bytes,7,opt,name=window_end,json=windowEnd,proto3" json:"window_end,omitempty"`
}
func (x *FlowEvent) Reset() {
@@ -206,6 +208,20 @@ func (x *FlowEvent) GetIsInitiator() bool {
return false
}
func (x *FlowEvent) GetWindowStart() *timestamppb.Timestamp {
if x != nil {
return x.WindowStart
}
return nil
}
func (x *FlowEvent) GetWindowEnd() *timestamppb.Timestamp {
if x != nil {
return x.WindowEnd
}
return nil
}
type FlowEventAck struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@@ -602,7 +618,7 @@ var file_flow_proto_rawDesc = []byte{
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@@ -615,75 +631,82 @@ var file_flow_proto_rawDesc = []byte{
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}
var (
@@ -713,17 +736,19 @@ var file_flow_proto_goTypes = []interface{}{
var file_flow_proto_depIdxs = []int32{
7, // 0: flow.FlowEvent.timestamp:type_name -> google.protobuf.Timestamp
4, // 1: flow.FlowEvent.flow_fields:type_name -> flow.FlowFields
0, // 2: flow.FlowFields.type:type_name -> flow.Type
1, // 3: flow.FlowFields.direction:type_name -> flow.Direction
5, // 4: flow.FlowFields.port_info:type_name -> flow.PortInfo
6, // 5: flow.FlowFields.icmp_info:type_name -> flow.ICMPInfo
2, // 6: flow.FlowService.Events:input_type -> flow.FlowEvent
3, // 7: flow.FlowService.Events:output_type -> flow.FlowEventAck
7, // [7:8] is the sub-list for method output_type
6, // [6:7] is the sub-list for method input_type
6, // [6:6] is the sub-list for extension type_name
6, // [6:6] is the sub-list for extension extendee
0, // [0:6] is the sub-list for field type_name
7, // 2: flow.FlowEvent.window_start:type_name -> google.protobuf.Timestamp
7, // 3: flow.FlowEvent.window_end:type_name -> google.protobuf.Timestamp
0, // 4: flow.FlowFields.type:type_name -> flow.Type
1, // 5: flow.FlowFields.direction:type_name -> flow.Direction
5, // 6: flow.FlowFields.port_info:type_name -> flow.PortInfo
6, // 7: flow.FlowFields.icmp_info:type_name -> flow.ICMPInfo
2, // 8: flow.FlowService.Events:input_type -> flow.FlowEvent
3, // 9: flow.FlowService.Events:output_type -> flow.FlowEventAck
9, // [9:10] is the sub-list for method output_type
8, // [8:9] is the sub-list for method input_type
8, // [8:8] is the sub-list for extension type_name
8, // [8:8] is the sub-list for extension extendee
0, // [0:8] is the sub-list for field type_name
}
func init() { file_flow_proto_init() }

3
flow/proto/flow.proto
View File

@@ -24,6 +24,9 @@ message FlowEvent {
FlowFields flow_fields = 4;
bool isInitiator = 5;
google.protobuf.Timestamp window_start = 6;
google.protobuf.Timestamp window_end = 7;
}
message FlowEventAck {

7
flow/proto/flow_grpc.pb.go
View File

@@ -1,8 +1,13 @@
// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
// versions:
// - protoc-gen-go-grpc v1.6.1
// - protoc v3.21.9
// source: flow.proto
package proto
import (
context "context"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"