mirror of
https://github.com/blacktop/ipsw.git
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blacktop
14457b7d96
Add dyld softlink/import/disassembly helpers, sandbox reach and diff support, richer WebKit IPC metadata, and expanded IOKit method recovery. Fix MOVK softlink address reconstruction and avoid cross-case argument-state poisoning while scanning switch-dispatched user-client methods.
99 lines
2.4 KiB
Go
99 lines
2.4 KiB
Go
package dyld
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import (
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"fmt"
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"testing"
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mtypes "github.com/blacktop/go-macho/types"
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)
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func TestPartialRelativeSelectorBaseSkipsLibObjC(t *testing.T) {
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img := &CacheImage{
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Name: "/usr/lib/libobjc.A.dylib",
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cache: &File{IsDyld4: true},
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}
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base, err := img.partialRelativeSelectorBase()
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if err != nil {
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t.Fatalf("partialRelativeSelectorBase returned error: %v", err)
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}
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if base != 0 {
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t.Fatalf("expected zero relative selector base, got %#x", base)
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}
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}
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func TestRelativeSelectorBaseMissingLibObjC(t *testing.T) {
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img := &CacheImage{
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Name: "/usr/lib/libA.dylib",
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cache: &File{},
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}
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base, err := img.relativeSelectorBase()
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if err != nil {
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t.Fatalf("relativeSelectorBase returned error: %v", err)
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}
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if base != 0 {
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t.Fatalf("expected zero relative selector base, got %#x", base)
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}
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}
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func TestLegacyRelativeSelectorBaseUsesObjCOptRoAddr(t *testing.T) {
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for _, version := range []uint32{15, 16} {
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t.Run(fmt.Sprintf("version_%d", version), func(t *testing.T) {
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f := fileWithSharedRegionStart(0x180000000)
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f.objcOptRoAddr = 0x1a0004000
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opt := &ObjcOptT{
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Version: version,
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RelativeMethodSelectorBaseAddressCacheOffset: 0x120,
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}
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base := f.relativeSelectorBaseForOptimization(opt)
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if base != 0x1a0004120 {
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t.Fatalf("expected legacy relative selector base %#x, got %#x", uint64(0x1a0004120), base)
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}
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})
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}
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}
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func TestNewRelativeSelectorBaseAddsSharedRegionStart(t *testing.T) {
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f := fileWithSharedRegionStart(0x180000000)
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opt := &ObjCOptimizationHeader{
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RelativeMethodSelectorBaseAddressOffset: 0x40120,
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}
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base := f.relativeSelectorBaseForOptimization(opt)
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if base != 0x180040120 {
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t.Fatalf("expected new relative selector base %#x, got %#x", uint64(0x180040120), base)
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}
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}
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func fileWithSharedRegionStart(sharedRegionStart uint64) *File {
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uuid := mtypes.UUID{1}
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return &File{
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UUID: uuid,
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Headers: map[mtypes.UUID]CacheHeader{
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uuid: {
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SharedRegionStart: sharedRegionStart,
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},
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},
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}
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}
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func TestReexportLibraryName(t *testing.T) {
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libs := []string{"/usr/lib/libA.dylib", "/usr/lib/libB.dylib"}
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name, err := reexportLibraryName(libs, 2)
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if err != nil {
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t.Fatalf("reexportLibraryName returned error: %v", err)
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}
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if name != "/usr/lib/libB.dylib" {
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t.Fatalf("expected libB, got %s", name)
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}
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for _, ordinal := range []uint64{0, 3} {
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if _, err := reexportLibraryName(libs, ordinal); err == nil {
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t.Fatalf("expected error for ordinal %d", ordinal)
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}
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}
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}
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