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package signature
import (
"bytes"
"fmt"
"os"
"path/filepath"
"testing"
"github.com/foxboron/go-uefi/efi/attributes"
"github.com/foxboron/go-uefi/efi/util"
"go.mozilla.org/pkcs7"
)
func ReadTestData(dir string) []string {
var paths []string
files, _ := os.ReadDir(dir)
for _, file := range files {
paths = append(paths, filepath.Join(dir, file.Name()))
}
return paths
}
var (
EfivarsTestFiles = ReadTestData("../../tests/data/signatures/efivars")
SiglistTestFiles = ReadTestData("../../tests/data/signatures/siglist")
SiglistchecksumTestFiles = ReadTestData("../../tests/data/signatures/siglistchecksum")
SigsupportTestFiles = ReadTestData("../../tests/data/signatures/sigsupport")
)
func TestParseSignatureListVars(t *testing.T) {
for _, path := range EfivarsTestFiles {
attrs, data, err := attributes.ReadEfivarsFile(path)
var pkflags attributes.Attributes
pkflags |= attributes.EFI_VARIABLE_NON_VOLATILE
pkflags |= attributes.EFI_VARIABLE_BOOTSERVICE_ACCESS
pkflags |= attributes.EFI_VARIABLE_RUNTIME_ACCESS
pkflags |= attributes.EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS
if (pkflags & attrs) != pkflags {
t.Errorf("Incorrect bitmask")
}
c, err := ReadSignatureList(data)
if err != nil {
t.Fatal(err)
}
if util.CmpEFIGUID(c.SignatureType, CERT_X509_GUID) {
// Run over and ensure we are getting the correct type
for _, d := range c.Signatures {
_, err := pkcs7.NewSignedData(d.Data)
if err != nil {
t.Fatal(err)
}
}
}
}
}
func TestParseSignatureListFile(t *testing.T) {
for _, path := range SiglistTestFiles {
b, _ := os.ReadFile(path)
f := bytes.NewReader(b)
c, err := ReadSignatureList(f)
if err != nil {
t.Fatal(err)
}
if util.CmpEFIGUID(c.SignatureType, CERT_X509_GUID) {
for _, d := range c.Signatures {
_, err := pkcs7.NewSignedData(d.Data)
if err != nil {
t.Fatal(err)
}
}
}
}
}
func TestParseSignatureListHashFile(t *testing.T) {
for _, path := range SiglistchecksumTestFiles {
b, _ := os.ReadFile(path)
f := bytes.NewReader(b)
c, err := ReadSignatureList(f)
if err != nil {
t.Fatal(err)
}
if util.CmpEFIGUID(c.SignatureType, CERT_SHA256_GUID) {
for _, d := range c.Signatures {
if fmt.Sprintf("%x", d.Data) != "4be2e8d5ef8113c3b9218f05f8aed1df8a6b0e24c706360d39f74a7423f00e32" {
t.Fatal("Not correct checksum")
}
}
}
}
}
func TestParseSignatureSupport(t *testing.T) {
for _, path := range SigsupportTestFiles {
attrs, data, err := attributes.ReadEfivarsFile(path)
if err != nil {
t.Fatal(err)
}
var pkflags attributes.Attributes
pkflags |= attributes.EFI_VARIABLE_BOOTSERVICE_ACCESS
pkflags |= attributes.EFI_VARIABLE_RUNTIME_ACCESS
if (pkflags & attrs) != pkflags {
t.Errorf("Incorrect bitmask")
}
guids, err := GetSupportedSignatures(data)
if err != nil {
t.Fatal(err)
}
if guids[0] != CERT_SHA1_GUID {
t.Errorf("Unexpected certificate, should be SHA1")
}
if guids[1] != CERT_SHA256_GUID {
t.Errorf("Unexpected certificate, should be SHA256")
}
if guids[2] != CERT_RSA2048_GUID {
t.Errorf("Unexpected certificate, should be RSA2048")
}
if guids[3] != CERT_X509_GUID {
t.Errorf("Unexpected certificate, should be X509")
}
}
}
var sigdata = []SignatureData{
SignatureData{Owner: util.EFIGUID{Data1: 0xc1095e1b, Data2: 0x8a3b, Data3: 0x4cf5, Data4: [8]uint8{0x9d, 0x4a, 0xaf, 0xc7, 0xd7, 0x5d, 0xca, 0x68}}, Data: []uint8{0x81, 0xb4, 0xd9, 0x69, 0x31, 0xbf, 0xd, 0x2, 0xfd, 0x91, 0xa6, 0x1e, 0x19, 0xd1, 0x4f, 0x1d, 0xa4, 0x52, 0xe6, 0x6d, 0xb2, 0x40, 0x8c, 0xa8, 0x60, 0x4d, 0x41, 0x1f, 0x92, 0x65, 0x9f, 0xa}},
SignatureData{Owner: util.EFIGUID{Data1: 0xc1095e1b, Data2: 0x8a3b, Data3: 0x4cf5, Data4: [8]uint8{0x9d, 0x4a, 0xaf, 0xc7, 0xd7, 0x5d, 0xca, 0x68}}, Data: []uint8{0x82, 0xb4, 0xd9, 0x69, 0x31, 0xbf, 0xd, 0x2, 0xfd, 0x91, 0xa6, 0x1e, 0x19, 0xd1, 0x4f, 0x1d, 0xa4, 0x52, 0xe6, 0x6d, 0xb2, 0x40, 0x8c, 0xa8, 0x60, 0x4d, 0x41, 0x1f, 0x92, 0x65, 0x9f, 0xa}},
SignatureData{Owner: util.EFIGUID{Data1: 0xc1095e1b, Data2: 0x8a3b, Data3: 0x4cf5, Data4: [8]uint8{0x9d, 0x4a, 0xaf, 0xc7, 0xd7, 0x5d, 0xca, 0x68}}, Data: []uint8{0x83, 0xb4, 0xd9, 0x69, 0x31, 0xbf, 0xd, 0x2, 0xfd, 0x91, 0xa6, 0x1e, 0x19, 0xd1, 0x4f, 0x1d, 0xa4, 0x52, 0xe6, 0x6d, 0xb2, 0x40, 0x8c, 0xa8, 0x60, 0x4d, 0x41, 0x1f, 0x92, 0x65, 0x9f, 0xa}},
}
func TestSiglist(t *testing.T) {
sl := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl.AppendBytes(sig.Owner, sig.Data)
}
if sl.ListSize != 172 {
t.Fatal("list size incorrect")
}
if sl.Size != 48 {
t.Fatal("size incorrect")
}
if len(sl.Signatures) != 3 {
t.Fatal("number of signatures wrong")
}
}
func TestSiglistRemove(t *testing.T) {
sl := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl.AppendBytes(sig.Owner, sig.Data)
}
err := sl.RemoveSignature(sigdata[0])
if err != nil {
t.Error(err)
}
if len(sl.Signatures) != 2 {
t.Fatal("remove: number of signatures wrong")
}
if sl.Size != 48 {
t.Fatal("remove: size incorrect")
}
if sl.ListSize != 124 {
t.Fatal("remove: list size incorrect")
}
}
func TestSiglistRemoveSame(t *testing.T) {
sl := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl.AppendBytes(sig.Owner, sig.Data)
}
sl.RemoveSignature(sigdata[0])
// Try remove the same sigdata, should give error
err := sl.RemoveSignature(sigdata[0])
if err == nil {
t.Error(err)
}
}
func TestSiglistRemoveAll(t *testing.T) {
sl := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl.AppendBytes(sig.Owner, sig.Data)
}
var err error
for _, sig := range sigdata {
err = sl.RemoveSignature(sig)
}
if err != nil {
t.Error(err)
}
if len(sl.Signatures) != 0 {
t.Fatal("remove: number of signatures wrong")
}
if sl.Size != 0 {
t.Fatal("remove: size incorrect")
}
if sl.ListSize != 28 {
t.Fatal("remove: list size incorrect")
}
}
func TestSiglistExists(t *testing.T) {
sl1 := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl1.AppendBytes(sig.Owner, sig.Data)
}
sl2 := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl2.AppendBytes(sig.Owner, sig.Data)
}
if !sl1.ExistsInList(sl2) {
t.Fatal("exists: not the same list")
}
}
func TestSiglistSigDataExists(t *testing.T) {
sl := NewSignatureList(CERT_SHA256_GUID)
for _, sig := range sigdata {
sl.AppendBytes(sig.Owner, sig.Data)
}
if ok, _ := sl.Exists(&sigdata[0]); !ok {
t.Fatal("exists: sigdata is not in the list")
}
}
func TestSiglists(t *testing.T) {
for _, c := range []struct {
name string
f string
}{
{
name: "db",
f: "testdata/db",
},
{
name: "dbdefault",
f: "testdata/dbdefault",
},
{
name: "kek",
f: "testdata/kek",
},
{
name: "kekdefault",
f: "testdata/kekdefault",
},
{
name: "pk",
f: "testdata/pk",
},
{
name: "pkdefault",
f: "testdata/pkdefault",
},
} {
t.Run(c.name, func(t *testing.T) {
_, data, err := attributes.ReadEfivarsFile(c.f)
if err != nil {
t.Fatalf("%v", err)
}
_, err = ReadSignatureDatabase(data)
if err != nil {
t.Fatalf("%v", err)
}
})
}
}
|
