feat: add keyctl ptrace perf_event_open tracing (task 77)

1 files changed, 86 insertions, 0 deletions

diff --git a/internal/eventloop_security_test.go b/internal/eventloop_security_test.go
new file mode 100644
index 0000000..0dd9ae7
--- /dev/null
+++ b/internal/eventloop_security_test.go
@@ -0,0 +1,86 @@
+package internal
+
+import (
+	"testing"
+
+	"ior/internal/event"
+	"ior/internal/globalfilter"
+	"ior/internal/types"
+)
+
+func TestHandlePerfOpenExitTracksReturnedFd(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{})
+
+	enter := &types.PerfOpenEvent{
+		EventType: types.ENTER_PERF_OPEN_EVENT,
+		TraceId:   types.SYS_ENTER_PERF_EVENT_OPEN,
+		Time:      100,
+		Pid:       200,
+		Tid:       201,
+		AttrType:  1,
+		AttrSize:  64,
+		Config:    2,
+		TargetPid: 0,
+		Cpu:       -1,
+		GroupFd:   -1,
+		Flags:     0,
+	}
+	exit := &types.RetEvent{
+		EventType: types.EXIT_RET_EVENT,
+		TraceId:   types.SYS_EXIT_PERF_EVENT_OPEN,
+		Time:      200,
+		Ret:       77,
+		Pid:       200,
+		Tid:       201,
+	}
+	ep := &event.Pair{EnterEv: enter, ExitEv: exit}
+
+	if ok := el.handlePerfOpenExit(ep, enter); !ok {
+		t.Fatal("handlePerfOpenExit returned false")
+	}
+	if ep.File == nil || ep.File.FD() != 77 {
+		t.Fatalf("expected resolved perf fd 77, got file=%v", ep.File)
+	}
+}
+
+func TestHandlePerfOpenExitAppliesPairFilter(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{
+		filter: globalfilter.Filter{
+			Syscall: &globalfilter.StringFilter{Pattern: "openat"},
+		},
+	})
+
+	enter := &types.PerfOpenEvent{
+		EventType: types.ENTER_PERF_OPEN_EVENT,
+		TraceId:   types.SYS_ENTER_PERF_EVENT_OPEN,
+		Time:      100,
+		Pid:       202,
+		Tid:       203,
+	}
+	exit := &types.RetEvent{
+		EventType: types.EXIT_RET_EVENT,
+		TraceId:   types.SYS_EXIT_PERF_EVENT_OPEN,
+		Time:      200,
+		Ret:       1,
+		Pid:       202,
+		Tid:       203,
+	}
+	ep := &event.Pair{EnterEv: enter, ExitEv: exit}
+
+	if ok := el.handlePerfOpenExit(ep, enter); ok {
+		t.Fatal("handlePerfOpenExit should reject pair due to filter mismatch")
+	}
+}
+
+func TestInitRawHandlersRegistersSecurityEvents(t *testing.T) {
+	el := mustNewEventLoop(t, eventLoopConfig{})
+	if _, ok := el.rawHandlers[types.ENTER_KEYCTL_EVENT]; !ok {
+		t.Fatal("ENTER_KEYCTL_EVENT handler is not registered")
+	}
+	if _, ok := el.rawHandlers[types.ENTER_PTRACE_EVENT]; !ok {
+		t.Fatal("ENTER_PTRACE_EVENT handler is not registered")
+	}
+	if _, ok := el.rawHandlers[types.ENTER_PERF_OPEN_EVENT]; !ok {
+		t.Fatal("ENTER_PERF_OPEN_EVENT handler is not registered")
+	}
+}