whatcanGOwrong

2024-09-19 21:38:24 -04:00
commit d0ae4d841d
17908 changed files with 4096831 additions and 0 deletions
@@ -0,0 +1,130 @@
+package link
+
+import (
+	"testing"
+
+	"github.com/cilium/ebpf"
+	"github.com/cilium/ebpf/internal"
+	"github.com/cilium/ebpf/internal/testutils"
+)
+
+func TestFreplace(t *testing.T) {
+	testutils.SkipOnOldKernel(t, "5.10", "freplace")
+
+	testutils.Files(t, testutils.Glob(t, "../testdata/freplace-*.elf"), func(t *testing.T, file string) {
+		spec, err := ebpf.LoadCollectionSpec(file)
+		if err != nil {
+			t.Fatal("Can't parse ELF:", err)
+		}
+
+		if spec.ByteOrder != internal.NativeEndian {
+			return
+		}
+
+		target, err := ebpf.NewProgram(spec.Programs["sched_process_exec"])
+		testutils.SkipIfNotSupported(t, err)
+		if err != nil {
+			t.Fatal("Can't create target program:", err)
+		}
+		defer target.Close()
+
+		// Test attachment specified at load time
+		spec.Programs["replacement"].AttachTarget = target
+		replacement, err := ebpf.NewProgram(spec.Programs["replacement"])
+		testutils.SkipIfNotSupported(t, err)
+		if err != nil {
+			t.Fatal("Can't create replacement program:", err)
+		}
+		defer replacement.Close()
+
+		freplace, err := AttachFreplace(nil, "", replacement)
+		testutils.SkipIfNotSupported(t, err)
+		if err != nil {
+			t.Fatal("Can't create freplace:", err)
+		}
+
+		testLink(t, freplace, replacement)
+	})
+}
+
+func TestTracing(t *testing.T) {
+	testutils.SkipOnOldKernel(t, "5.11", "BPF_LINK_TYPE_TRACING")
+
+	tests := []struct {
+		name                             string
+		attachTo                         string
+		programType                      ebpf.ProgramType
+		programAttachType, attachTypeOpt ebpf.AttachType
+		cookie                           uint64
+	}{
+		{
+			name:              "AttachTraceFEntry",
+			attachTo:          "inet_dgram_connect",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachTraceFEntry,
+		},
+		{
+			name:              "AttachTraceFEntry",
+			attachTo:          "inet_dgram_connect",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachTraceFEntry,
+			attachTypeOpt:     ebpf.AttachTraceFEntry,
+			cookie:            1,
+		},
+		{
+			name:              "AttachTraceFEntry",
+			attachTo:          "inet_dgram_connect",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachTraceFEntry,
+		},
+		{
+			name:              "AttachTraceFExit",
+			attachTo:          "inet_dgram_connect",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachTraceFExit,
+		},
+		{
+			name:              "AttachModifyReturn",
+			attachTo:          "bpf_modify_return_test",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachModifyReturn,
+		},
+		{
+			name:              "AttachTraceRawTp",
+			attachTo:          "kfree_skb",
+			programType:       ebpf.Tracing,
+			programAttachType: ebpf.AttachTraceRawTp,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			prog := mustLoadProgram(t, tt.programType, tt.programAttachType, tt.attachTo)
+
+			opts := TracingOptions{Program: prog, AttachType: tt.attachTypeOpt, Cookie: tt.cookie}
+			link, err := AttachTracing(opts)
+			testutils.SkipIfNotSupported(t, err)
+			if err != nil {
+				t.Fatal(err)
+			}
+			testLink(t, link, prog)
+			if err = link.Close(); err != nil {
+				t.Fatal(err)
+			}
+		})
+	}
+}
+
+func TestLSM(t *testing.T) {
+	testutils.SkipOnOldKernel(t, "5.11", "BPF_LINK_TYPE_TRACING")
+
+	prog := mustLoadProgram(t, ebpf.LSM, ebpf.AttachLSMMac, "file_mprotect")
+
+	link, err := AttachLSM(LSMOptions{Program: prog})
+	testutils.SkipIfNotSupported(t, err)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	testLink(t, link, prog)
+}