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WIP: Add TCX support #1478

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WIP: Add TCX support #1478

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176420c
TCX support: introduce interface filter
rafaelroquetto Dec 18, 2024
5ddde6f
WIP
rafaelroquetto Dec 20, 2024
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10 changes: 0 additions & 10 deletions pkg/internal/ebpf/common/common.go
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Expand Up @@ -43,16 +43,6 @@ var IntegrityModeOverride = false

var ActiveNamespaces = make(map[uint32]uint32)

// These represent unique traffic control (tc) handles to be supplied as
// arguments to RegisterIngress, RegisterEgress or RegisterTC. They all start
// from the 0xb310 offset in simplistic attempt to avoid collisions with
// 3rdparty handles.
const (
NetollyTCHandle = 0xb310 + iota
HTTPTracerTCHandle
TCTracerTCHandle
)

// ProbeDesc holds the information of the instrumentation points of a given
// function/symbol
type ProbeDesc struct {
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244 changes: 0 additions & 244 deletions pkg/internal/ebpf/common/tc_linux.go
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This file was deleted.

3 changes: 0 additions & 3 deletions pkg/internal/ebpf/generictracer/generictracer.go
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Expand Up @@ -481,9 +481,6 @@ func (p *Tracer) AlreadyInstrumentedLib(id uint64) bool {
return module != nil
}

func (p *Tracer) SetupTC() {
}

func (p *Tracer) Run(ctx context.Context, eventsChan chan<- []request.Span) {
// At this point we now have loaded the bpf objects, which means we should insert any
// pids that are allowed into the bpf map
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1 change: 0 additions & 1 deletion pkg/internal/ebpf/generictracer/generictracer_notlinux.go
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Expand Up @@ -40,6 +40,5 @@ func (p *Tracer) UnlinkInstrumentedLib(_ uint64) {}
func (p *Tracer) AlreadyInstrumentedLib(_ uint64) bool { return false }
func (p *Tracer) Run(_ context.Context, _ chan<- []request.Span) {}
func (p *Tracer) Constants() map[string]any { return nil }
func (p *Tracer) SetupTC() {}
func (p *Tracer) SetupTailCalls() {}
func (p *Tracer) RegisterOffsets(_ *exec.FileInfo, _ *goexec.Offsets) {}
2 changes: 0 additions & 2 deletions pkg/internal/ebpf/gotracer/gotracer.go
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Expand Up @@ -401,8 +401,6 @@ func (p *Tracer) AlreadyInstrumentedLib(_ uint64) bool {
return false
}

func (p *Tracer) SetupTC() {}

func (p *Tracer) Run(ctx context.Context, eventsChan chan<- []request.Span) {
ebpfcommon.SharedRingbuf(
p.cfg,
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