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eventType.go
49 lines (40 loc) · 1.21 KB
/
eventType.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Tetragon
package filters
import (
"context"
"github.com/cilium/tetragon/api/v1/tetragon"
v1 "github.com/cilium/tetragon/pkg/oldhubble/api/v1"
hubbleFilters "github.com/cilium/tetragon/pkg/oldhubble/filters"
"google.golang.org/protobuf/reflect/protoreflect"
)
func filterByEventType(types []tetragon.EventType) hubbleFilters.FilterFunc {
return func(ev *v1.Event) bool {
switch event := ev.Event.(type) {
case *tetragon.GetEventsResponse:
eventProtoNum := tetragon.EventType_UNDEF
rft := event.ProtoReflect()
rft.Range(func(eventDesc protoreflect.FieldDescriptor, _ protoreflect.Value) bool {
if eventDesc.ContainingOneof() == nil || !rft.Has(eventDesc) {
return true
}
eventProtoNum = tetragon.EventType(eventDesc.Number())
return false
})
for _, t := range types {
if t == eventProtoNum {
return true
}
}
}
return false
}
}
type EventTypeFilter struct{}
func (f *EventTypeFilter) OnBuildFilter(_ context.Context, ff *tetragon.Filter) ([]hubbleFilters.FilterFunc, error) {
var fs []hubbleFilters.FilterFunc
if ff.EventSet != nil {
fs = append(fs, filterByEventType(ff.EventSet))
}
return fs, nil
}