Load X509 keys from ziparchive
Add a function to parse the zip archive and load the certificate from
all the zip entries with the suffix "x509.pem".
Bug: 116655889
Test: unittests pass
Change-Id: I93bf7aef7462c0623e89fc2d466d7af2d3a758bc
diff --git a/tests/component/verifier_test.cpp b/tests/component/verifier_test.cpp
index c460cbe..d110c37 100644
--- a/tests/component/verifier_test.cpp
+++ b/tests/component/verifier_test.cpp
@@ -26,9 +26,11 @@
#include <android-base/file.h>
#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
#include <android-base/test_utils.h>
#include <android-base/unique_fd.h>
#include <gtest/gtest.h>
+#include <ziparchive/zip_writer.h>
#include "common/test_constants.h"
#include "otautil/sysutil.h"
@@ -43,16 +45,43 @@
std::vector<uint8_t>(testkey_string.begin(), testkey_string.end()), cert));
}
-static void VerifyPackageWithCertificate(const std::string& name, Certificate&& cert) {
+static void VerifyPackageWithCertificates(const std::string& name,
+ const std::vector<Certificate>& certs) {
std::string package = from_testdata_base(name);
MemMapping memmap;
if (!memmap.MapFile(package)) {
FAIL() << "Failed to mmap " << package << ": " << strerror(errno) << "\n";
}
+ ASSERT_EQ(VERIFY_SUCCESS, verify_file(memmap.addr, memmap.length, certs));
+}
+
+static void VerifyPackageWithSingleCertificate(const std::string& name, Certificate&& cert) {
std::vector<Certificate> certs;
certs.emplace_back(std::move(cert));
- ASSERT_EQ(VERIFY_SUCCESS, verify_file(memmap.addr, memmap.length, certs));
+ VerifyPackageWithCertificates(name, certs);
+}
+
+static void BuildCertificateArchive(const std::vector<std::string>& file_names, int fd) {
+ FILE* zip_file_ptr = fdopen(fd, "wb");
+ ZipWriter zip_writer(zip_file_ptr);
+
+ for (const auto& name : file_names) {
+ std::string content;
+ ASSERT_TRUE(android::base::ReadFileToString(name, &content));
+
+ // Makes sure the zip entry name has the correct suffix.
+ std::string entry_name = name;
+ if (!android::base::EndsWith(entry_name, "x509.pem")) {
+ entry_name += "x509.pem";
+ }
+ ASSERT_EQ(0, zip_writer.StartEntry(entry_name.c_str(), ZipWriter::kCompress));
+ ASSERT_EQ(0, zip_writer.WriteBytes(content.data(), content.size()));
+ ASSERT_EQ(0, zip_writer.FinishEntry());
+ }
+
+ ASSERT_EQ(0, zip_writer.Finish());
+ ASSERT_EQ(0, fclose(zip_file_ptr));
}
TEST(VerifierTest, LoadCertificateFromBuffer_failure) {
@@ -72,7 +101,7 @@
ASSERT_EQ(Certificate::KEY_TYPE_RSA, cert.key_type);
ASSERT_EQ(nullptr, cert.ec);
- VerifyPackageWithCertificate("otasigned_v1.zip", std::move(cert));
+ VerifyPackageWithSingleCertificate("otasigned_v1.zip", std::move(cert));
}
TEST(VerifierTest, LoadCertificateFromBuffer_sha1_exponent65537) {
@@ -83,7 +112,7 @@
ASSERT_EQ(Certificate::KEY_TYPE_RSA, cert.key_type);
ASSERT_EQ(nullptr, cert.ec);
- VerifyPackageWithCertificate("otasigned_v2.zip", std::move(cert));
+ VerifyPackageWithSingleCertificate("otasigned_v2.zip", std::move(cert));
}
TEST(VerifierTest, LoadCertificateFromBuffer_sha256_exponent3) {
@@ -94,7 +123,7 @@
ASSERT_EQ(Certificate::KEY_TYPE_RSA, cert.key_type);
ASSERT_EQ(nullptr, cert.ec);
- VerifyPackageWithCertificate("otasigned_v3.zip", std::move(cert));
+ VerifyPackageWithSingleCertificate("otasigned_v3.zip", std::move(cert));
}
TEST(VerifierTest, LoadCertificateFromBuffer_sha256_exponent65537) {
@@ -105,7 +134,7 @@
ASSERT_EQ(Certificate::KEY_TYPE_RSA, cert.key_type);
ASSERT_EQ(nullptr, cert.ec);
- VerifyPackageWithCertificate("otasigned_v4.zip", std::move(cert));
+ VerifyPackageWithSingleCertificate("otasigned_v4.zip", std::move(cert));
}
TEST(VerifierTest, LoadCertificateFromBuffer_sha256_ec256bits) {
@@ -116,7 +145,55 @@
ASSERT_EQ(Certificate::KEY_TYPE_EC, cert.key_type);
ASSERT_EQ(nullptr, cert.rsa);
- VerifyPackageWithCertificate("otasigned_v5.zip", std::move(cert));
+ VerifyPackageWithSingleCertificate("otasigned_v5.zip", std::move(cert));
+}
+
+TEST(VerifierTest, LoadKeysFromZipfile_empty_archive) {
+ TemporaryFile otacerts;
+ BuildCertificateArchive({}, otacerts.release());
+ std::vector<Certificate> certs = LoadKeysFromZipfile(otacerts.path);
+ ASSERT_TRUE(certs.empty());
+}
+
+TEST(VerifierTest, LoadKeysFromZipfile_single_key) {
+ TemporaryFile otacerts;
+ BuildCertificateArchive({ from_testdata_base("testkey_v1.x509.pem") }, otacerts.release());
+ std::vector<Certificate> certs = LoadKeysFromZipfile(otacerts.path);
+ ASSERT_EQ(1, certs.size());
+
+ VerifyPackageWithCertificates("otasigned_v1.zip", certs);
+}
+
+TEST(VerifierTest, LoadKeysFromZipfile_corrupted_key) {
+ TemporaryFile corrupted_key;
+ std::string content;
+ ASSERT_TRUE(android::base::ReadFileToString(from_testdata_base("testkey_v1.x509.pem"), &content));
+ content = "random-contents" + content;
+ ASSERT_TRUE(android::base::WriteStringToFd(content, corrupted_key.release()));
+
+ TemporaryFile otacerts;
+ BuildCertificateArchive({ from_testdata_base("testkey_v2.x509.pem"), corrupted_key.path },
+ otacerts.release());
+ std::vector<Certificate> certs = LoadKeysFromZipfile(otacerts.path);
+ ASSERT_EQ(0, certs.size());
+}
+
+TEST(VerifierTest, LoadKeysFromZipfile_multiple_key) {
+ TemporaryFile otacerts;
+ BuildCertificateArchive(
+ {
+ from_testdata_base("testkey_v3.x509.pem"),
+ from_testdata_base("testkey_v4.x509.pem"),
+ from_testdata_base("testkey_v5.x509.pem"),
+
+ },
+ otacerts.release());
+ std::vector<Certificate> certs = LoadKeysFromZipfile(otacerts.path);
+ ASSERT_EQ(3, certs.size());
+
+ VerifyPackageWithCertificates("otasigned_v3.zip", certs);
+ VerifyPackageWithCertificates("otasigned_v4.zip", certs);
+ VerifyPackageWithCertificates("otasigned_v5.zip", certs);
}
class VerifierTest : public testing::TestWithParam<std::vector<std::string>> {