libbinder: Add object offsets to RPC Binder protocol (dc07cf88) · Commits · e / os / platform_frameworks_native

libs/binder/RpcState.cpp

+54 −13

Original line number	Diff line number	Diff line
		@@ -27,6 +27,7 @@

		#include "Debug.h"
		#include "RpcWireFormat.h"
		#include "Utils.h"

		#include <random>

		@@ -493,8 +494,14 @@ status_t RpcState::transactAddress(const sp<RpcSession::RpcConnection>& connecti
		}
		}

		// objectTable always empty for now. Will be populated from `data` soon.
		std::vector<uint32_t> objectTable;
		Span<const uint32_t> objectTableSpan = {objectTable.data(), objectTable.size()};

		uint32_t bodySize;
		LOG_ALWAYS_FATAL_IF(__builtin_add_overflow(sizeof(RpcWireTransaction), data.dataSize(),
		&bodySize) \|\|
		__builtin_add_overflow(objectTableSpan.byteSize(), bodySize,
		&bodySize),
		"Too much data %zu", data.dataSize());
		RpcWireHeader command{
		@@ -507,6 +514,8 @@ status_t RpcState::transactAddress(const sp<RpcSession::RpcConnection>& connecti
		.code = code,
		.flags = flags,
		.asyncNumber = asyncNumber,
		// bodySize didn't overflow => this cast is safe
		.parcelDataSize = static_cast<uint32_t>(data.dataSize()),
		};

		constexpr size_t kWaitMaxUs = 1000000;
		@@ -521,6 +530,7 @@ status_t RpcState::transactAddress(const sp<RpcSession::RpcConnection>& connecti
		{&command, sizeof(RpcWireHeader)},
		{&transaction, sizeof(RpcWireTransaction)},
		{const_cast<uint8_t*>(data.data()), data.dataSize()},
		objectTableSpan.toIovec(),
		};
		if (status_t status = rpcSend(connection, session, "transaction", iovs, arraysize(iovs),
		[&] {
		@@ -585,7 +595,9 @@ status_t RpcState::waitForReply(const sp<RpcSession::RpcConnection>& connection,
		return status;
		}

		if (command.bodySize < sizeof(RpcWireReply)) {
		const size_t rpcReplyWireSize = RpcWireReply::wireSize(session->getProtocolVersion().value());

		if (command.bodySize < rpcReplyWireSize) {
		ALOGE("Expecting %zu but got %" PRId32 " bytes for RpcWireReply. Terminating!",
		sizeof(RpcWireReply), command.bodySize);
		(void)session->shutdownAndWait(false);
		@@ -593,11 +605,13 @@ status_t RpcState::waitForReply(const sp<RpcSession::RpcConnection>& connection,
		}

		RpcWireReply rpcReply;
		CommandData data(command.bodySize - sizeof(RpcWireReply));
		memset(&rpcReply, 0, sizeof(RpcWireReply)); // zero because of potential short read

		CommandData data(command.bodySize - rpcReplyWireSize);
		if (!data.valid()) return NO_MEMORY;

		iovec iovs[]{
		{&rpcReply, sizeof(RpcWireReply)},
		{&rpcReply, rpcReplyWireSize},
		{data.data(), data.size()},
		};
		if (status_t status = rpcRec(connection, session, "reply body", iovs, arraysize(iovs));
		@@ -605,11 +619,15 @@ status_t RpcState::waitForReply(const sp<RpcSession::RpcConnection>& connection,
		return status;
		if (rpcReply.status != OK) return rpcReply.status;

		uint8_t* parcelData = data.data();
		size_t parcelDataSize = data.size();
		data.release();
		reply->rpcSetDataReference(session, parcelData, parcelDataSize, cleanup_reply_data);
		Span<const uint8_t> parcelSpan = {data.data(), data.size()};
		if (session->getProtocolVersion().value() >=
		RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE) {
		Span<const uint8_t> objectTableBytes = parcelSpan.splitOff(rpcReply.parcelDataSize);
		LOG_ALWAYS_FATAL_IF(objectTableBytes.size > 0, "Non-empty object table not supported yet.");
		}

		data.release();
		reply->rpcSetDataReference(session, parcelSpan.data, parcelSpan.size, cleanup_reply_data);
		return OK;
		}

		@@ -824,12 +842,22 @@ processTransactInternalTailCall:
		reply.markForRpc(session);

		if (replyStatus == OK) {
		Span<const uint8_t> parcelSpan = {transaction->data,
		transactionData.size() -
		offsetof(RpcWireTransaction, data)};
		if (session->getProtocolVersion().value() >=
		RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE) {
		Span<const uint8_t> objectTableBytes = parcelSpan.splitOff(transaction->parcelDataSize);
		LOG_ALWAYS_FATAL_IF(objectTableBytes.size > 0,
		"Non-empty object table not supported yet.");
		}

		Parcel data;
		// transaction->data is owned by this function. Parcel borrows this data and
		// only holds onto it for the duration of this function call. Parcel will be
		// deleted before the 'transactionData' object.
		data.rpcSetDataReference(session, transaction->data,
		transactionData.size() - offsetof(RpcWireTransaction, data),

		data.rpcSetDataReference(session, parcelSpan.data, parcelSpan.size,
		do_nothing_to_transact_data);

		if (target) {
		@@ -941,8 +969,16 @@ processTransactInternalTailCall:
		replyStatus = flushExcessBinderRefs(session, addr, target);
		}

		const size_t rpcReplyWireSize = RpcWireReply::wireSize(session->getProtocolVersion().value());

		// objectTable always empty for now. Will be populated from `reply` soon.
		std::vector<uint32_t> objectTable;
		Span<const uint32_t> objectTableSpan = {objectTable.data(), objectTable.size()};

		uint32_t bodySize;
		LOG_ALWAYS_FATAL_IF(__builtin_add_overflow(sizeof(RpcWireReply), reply.dataSize(), &bodySize),
		LOG_ALWAYS_FATAL_IF(__builtin_add_overflow(rpcReplyWireSize, reply.dataSize(), &bodySize) \|\|
		__builtin_add_overflow(objectTableSpan.byteSize(), bodySize,
		&bodySize),
		"Too much data for reply %zu", reply.dataSize());
		RpcWireHeader cmdReply{
		.command = RPC_COMMAND_REPLY,
		@@ -950,12 +986,17 @@ processTransactInternalTailCall:
		};
		RpcWireReply rpcReply{
		.status = replyStatus,
		// NOTE: Not necessarily written to socket depending on session
		// version.
		// NOTE: bodySize didn't overflow => this cast is safe
		.parcelDataSize = static_cast<uint32_t>(reply.dataSize()),
		.reserved = {0, 0, 0},
		};

		iovec iovs[]{
		{&cmdReply, sizeof(RpcWireHeader)},
		{&rpcReply, sizeof(RpcWireReply)},
		{&rpcReply, rpcReplyWireSize},
		{const_cast<uint8_t*>(reply.data()), reply.dataSize()},
		objectTableSpan.toIovec(),
		};
		return rpcSend(connection, session, "reply", iovs, arraysize(iovs), std::nullopt);
		}

libs/binder/RpcWireFormat.h

+20 −2

Original line number	Diff line number	Diff line
		@@ -131,7 +131,10 @@ struct RpcWireTransaction {

		uint64_t asyncNumber;

		uint32_t reserved[4];
		// The size of the Parcel data directly following RpcWireTransaction.
		uint32_t parcelDataSize;

		uint32_t reserved[3];

		uint8_t data[];
		};
		@@ -139,8 +142,23 @@ static_assert(sizeof(RpcWireTransaction) == 40);

		struct RpcWireReply {
		int32_t status; // transact return

		// -- Fields below only transmitted starting at protocol version 1 --

		// The size of the Parcel data directly following RpcWireReply.
		uint32_t parcelDataSize;

		uint32_t reserved[3];

		// Byte size of RpcWireReply in the wire protocol.
		static size_t wireSize(uint32_t protocolVersion) {
		if (protocolVersion == 0) {
		return sizeof(int32_t);
		}
		return sizeof(RpcWireReply);
		}
		};
		static_assert(sizeof(RpcWireReply) == 4);
		static_assert(sizeof(RpcWireReply) == 20);

		#pragma clang diagnostic pop

libs/binder/Utils.h

+24 −1

Original line number	Diff line number	Diff line
		@@ -14,8 +14,9 @@
		* limitations under the License.
		*/

		#include <cstdint>
		#include <stddef.h>
		#include <cstdint>
		#include <optional>

		#include <android-base/result.h>
		#include <android-base/unique_fd.h>
		@@ -39,4 +40,26 @@ android::base::Result<void> setNonBlocking(android::base::borrowed_fd fd);

		status_t getRandomBytes(uint8_t* data, size_t size);

		// View of contiguous sequence. Similar to std::span.
		template <typename T>
		struct Span {
		T* data = nullptr;
		size_t size = 0;

		size_t byteSize() { return size * sizeof(T); }

		iovec toIovec() { return {const_cast<std::remove_const_t<T>*>(data), byteSize()}; }

		// Truncates `this` to a length of `offset` and returns a span with the
		// remainder.
		//
		// Aborts if offset > size.
		Span<T> splitOff(size_t offset) {
		LOG_ALWAYS_FATAL_IF(offset > size);
		Span<T> rest = {data + offset, size - offset};
		size = offset;
		return rest;
		}
		};

		} // namespace android

libs/binder/include/binder/RpcSession.h

+7 −1

Original line number	Diff line number	Diff line
		@@ -38,7 +38,13 @@ class FdTrigger;

		constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_NEXT = 1;
		constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL = 0xF0000000;
		constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION = 0;
		constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION = RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL;

		// Starting with this version:
		//
		// * RpcWireReply is larger (4 bytes -> 20).
		// * RpcWireTransaction and RpcWireReplyV1 include the parcel data size.
		constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE = 1;

		/**
		* This represents a session (group of connections) between a client

libs/binder/tests/binderRpcTest.cpp

+84 −42

Original line number	Diff line number	Diff line
		@@ -99,17 +99,19 @@ TEST(BinderRpcParcel, EntireParcelFormatted) {
		EXPECT_DEATH(p.markForBinder(sp<BBinder>::make()), "");
		}

		class BinderRpcSimple : public ::testing::TestWithParam<RpcSecurity> {
		class BinderRpcServerOnly : public ::testing::TestWithParam<std::tuple<RpcSecurity, uint32_t>> {
		public:
		static std::string PrintTestParam(const ::testing::TestParamInfo<ParamType>& info) {
		return newFactory(info.param)->toCString();
		return std::string(newFactory(std::get<0>(info.param))->toCString()) + "_serverV" +
		std::to_string(std::get<1>(info.param));
		}
		};

		TEST_P(BinderRpcSimple, SetExternalServerTest) {
		TEST_P(BinderRpcServerOnly, SetExternalServerTest) {
		base::unique_fd sink(TEMP_FAILURE_RETRY(open("/dev/null", O_RDWR)));
		int sinkFd = sink.get();
		auto server = RpcServer::make(newFactory(GetParam()));
		auto server = RpcServer::make(newFactory(std::get<0>(GetParam())));
		server->setProtocolVersion(std::get<1>(GetParam()));
		ASSERT_FALSE(server->hasServer());
		ASSERT_EQ(OK, server->setupExternalServer(std::move(sink)));
		ASSERT_TRUE(server->hasServer());
		@@ -480,7 +482,8 @@ static base::unique_fd connectTo(const RpcSocketAddress& addr) {
		return serverFd;
		}

		class BinderRpc : public ::testing::TestWithParam<std::tuple<SocketType, RpcSecurity>> {
		class BinderRpc
		: public ::testing::TestWithParam<std::tuple<SocketType, RpcSecurity, uint32_t, uint32_t>> {
		public:
		struct Options {
		size_t numThreads = 1;
		@@ -490,8 +493,9 @@ public:
		};

		static inline std::string PrintParamInfo(const testing::TestParamInfo<ParamType>& info) {
		auto [type, security] = info.param;
		return PrintToString(type) + "_" + newFactory(security)->toCString();
		auto [type, security, clientVersion, serverVersion] = info.param;
		return PrintToString(type) + "_" + newFactory(security)->toCString() + "_clientV" +
		std::to_string(clientVersion) + "_serverV" + std::to_string(serverVersion);
		}

		static inline void writeString(android::base::borrowed_fd fd, std::string_view str) {
		@@ -533,16 +537,19 @@ public:

		SocketType socketType = std::get<0>(GetParam());
		RpcSecurity rpcSecurity = std::get<1>(GetParam());
		uint32_t clientVersion = std::get<2>(GetParam());
		uint32_t serverVersion = std::get<3>(GetParam());

		unsigned int vsockPort = allocateVsockPort();
		std::string addr = allocateSocketAddress();

		auto ret = ProcessSession{
		.host = Process([&](android::base::borrowed_fd writeEnd,
		.host = Process([=](android::base::borrowed_fd writeEnd,
		android::base::borrowed_fd readEnd) {
		auto certVerifier = std::make_shared<RpcCertificateVerifierSimple>();
		sp<RpcServer> server = RpcServer::make(newFactory(rpcSecurity, certVerifier));

		server->setProtocolVersion(serverVersion);
		server->setMaxThreads(options.numThreads);

		unsigned int outPort = 0;
		@@ -618,6 +625,7 @@ public:
		status_t status;

		for (const auto& session : sessions) {
		CHECK(session->setProtocolVersion(clientVersion));
		session->setMaxIncomingThreads(options.numIncomingConnections);
		session->setMaxOutgoingThreads(options.numOutgoingConnections);

		@@ -1420,9 +1428,20 @@ static std::vector<SocketType> testSocketTypes(bool hasPreconnected = true) {
		return ret;
		}

		static std::vector<uint32_t> testVersions() {
		std::vector<uint32_t> versions;
		for (size_t i = 0; i < RPC_WIRE_PROTOCOL_VERSION_NEXT; i++) {
		versions.push_back(i);
		}
		versions.push_back(RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL);
		return versions;
		}

		INSTANTIATE_TEST_CASE_P(PerSocket, BinderRpc,
		::testing::Combine(::testing::ValuesIn(testSocketTypes()),
		::testing::ValuesIn(RpcSecurityValues())),
		::testing::ValuesIn(RpcSecurityValues()),
		::testing::ValuesIn(testVersions()),
		::testing::ValuesIn(testVersions())),
		BinderRpc::PrintParamInfo);

		class BinderRpcServerRootObject
		@@ -1476,9 +1495,10 @@ private:
		bool mValue = false;
		};

		TEST_P(BinderRpcSimple, Shutdown) {
		TEST_P(BinderRpcServerOnly, Shutdown) {
		auto addr = allocateSocketAddress();
		auto server = RpcServer::make(newFactory(GetParam()));
		auto server = RpcServer::make(newFactory(std::get<0>(GetParam())));
		server->setProtocolVersion(std::get<1>(GetParam()));
		ASSERT_EQ(OK, server->setupUnixDomainServer(addr.c_str()));
		auto joinEnds = std::make_shared<OneOffSignal>();

		@@ -1548,12 +1568,17 @@ TEST(BinderRpc, Java) {
		ASSERT_EQ(OK, rpcBinder->pingBinder());
		}

		INSTANTIATE_TEST_CASE_P(BinderRpc, BinderRpcSimple, ::testing::ValuesIn(RpcSecurityValues()),
		BinderRpcSimple::PrintTestParam);
		INSTANTIATE_TEST_CASE_P(BinderRpc, BinderRpcServerOnly,
		::testing::Combine(::testing::ValuesIn(RpcSecurityValues()),
		::testing::ValuesIn(testVersions())),
		BinderRpcServerOnly::PrintTestParam);

		class RpcTransportTestUtils {
		public:
		using Param = std::tuple<SocketType, RpcSecurity, std::optional<RpcCertificateFormat>>;
		// Only parameterized only server version because `RpcSession` is bypassed
		// in the client half of the tests.
		using Param =
		std::tuple<SocketType, RpcSecurity, std::optional<RpcCertificateFormat>, uint32_t>;
		using ConnectToServer = std::function<base::unique_fd()>;

		// A server that handles client socket connections.
		@@ -1565,8 +1590,9 @@ public:
		[[nodiscard]] AssertionResult setUp(
		const Param& param,
		std::unique_ptr<RpcAuth> auth = std::make_unique<RpcAuthSelfSigned>()) {
		auto [socketType, rpcSecurity, certificateFormat] = param;
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = param;
		auto rpcServer = RpcServer::make(newFactory(rpcSecurity));
		rpcServer->setProtocolVersion(serverVersion);
		switch (socketType) {
		case SocketType::PRECONNECTED: {
		return AssertionFailure() << "Not supported by this test";
		@@ -1696,7 +1722,8 @@ public:
		explicit Client(ConnectToServer connectToServer) : mConnectToServer(connectToServer) {}
		Client(Client&&) = default;
		[[nodiscard]] AssertionResult setUp(const Param& param) {
		auto [socketType, rpcSecurity, certificateFormat] = param;
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = param;
		(void)serverVersion;
		mFdTrigger = FdTrigger::make();
		mCtx = newFactory(rpcSecurity, mCertVerifier)->newClientCtx();
		if (mCtx == nullptr) return AssertionFailure() << "newClientCtx";
		@@ -1767,31 +1794,37 @@ public:
		using Server = RpcTransportTestUtils::Server;
		using Client = RpcTransportTestUtils::Client;
		static inline std::string PrintParamInfo(const testing::TestParamInfo<ParamType>& info) {
		auto [socketType, rpcSecurity, certificateFormat] = info.param;
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = info.param;
		auto ret = PrintToString(socketType) + "_" + newFactory(rpcSecurity)->toCString();
		if (certificateFormat.has_value()) ret += "_" + PrintToString(*certificateFormat);
		ret += "_serverV" + std::to_string(serverVersion);
		return ret;
		}
		static std::vector<ParamType> getRpcTranportTestParams() {
		std::vector<ParamType> ret;
		for (auto serverVersion : testVersions()) {
		for (auto socketType : testSocketTypes(false /* hasPreconnected */)) {
		for (auto rpcSecurity : RpcSecurityValues()) {
		switch (rpcSecurity) {
		case RpcSecurity::RAW: {
		ret.emplace_back(socketType, rpcSecurity, std::nullopt);
		ret.emplace_back(socketType, rpcSecurity, std::nullopt, serverVersion);
		} break;
		case RpcSecurity::TLS: {
		ret.emplace_back(socketType, rpcSecurity, RpcCertificateFormat::PEM);
		ret.emplace_back(socketType, rpcSecurity, RpcCertificateFormat::DER);
		ret.emplace_back(socketType, rpcSecurity, RpcCertificateFormat::PEM,
		serverVersion);
		ret.emplace_back(socketType, rpcSecurity, RpcCertificateFormat::DER,
		serverVersion);
		} break;
		}
		}
		}
		}
		return ret;
		}
		template <typename A, typename B>
		status_t trust(const A& a, const B& b) {
		auto [socketType, rpcSecurity, certificateFormat] = GetParam();
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = GetParam();
		(void)serverVersion;
		return RpcTransportTestUtils::trust(rpcSecurity, certificateFormat, a, b);
		}
		};
		@@ -1827,7 +1860,8 @@ TEST_P(RpcTransportTest, MultipleClients) {
		}

		TEST_P(RpcTransportTest, UntrustedServer) {
		auto [socketType, rpcSecurity, certificateFormat] = GetParam();
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = GetParam();
		(void)serverVersion;

		auto untrustedServer = std::make_unique<Server>();
		ASSERT_TRUE(untrustedServer->setUp(GetParam()));
		@@ -1845,7 +1879,9 @@ TEST_P(RpcTransportTest, UntrustedServer) {
		client.run(handshakeOk);
		}
		TEST_P(RpcTransportTest, MaliciousServer) {
		auto [socketType, rpcSecurity, certificateFormat] = GetParam();
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = GetParam();
		(void)serverVersion;

		auto validServer = std::make_unique<Server>();
		ASSERT_TRUE(validServer->setUp(GetParam()));

		@@ -1868,7 +1904,9 @@ TEST_P(RpcTransportTest, MaliciousServer) {
		}

		TEST_P(RpcTransportTest, UntrustedClient) {
		auto [socketType, rpcSecurity, certificateFormat] = GetParam();
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = GetParam();
		(void)serverVersion;

		auto server = std::make_unique<Server>();
		ASSERT_TRUE(server->setUp(GetParam()));

		@@ -1887,7 +1925,9 @@ TEST_P(RpcTransportTest, UntrustedClient) {
		}

		TEST_P(RpcTransportTest, MaliciousClient) {
		auto [socketType, rpcSecurity, certificateFormat] = GetParam();
		auto [socketType, rpcSecurity, certificateFormat, serverVersion] = GetParam();
		(void)serverVersion;

		auto server = std::make_unique<Server>();
		ASSERT_TRUE(server->setUp(GetParam()));

		@@ -1973,23 +2013,24 @@ INSTANTIATE_TEST_CASE_P(BinderRpc, RpcTransportTest,
		RpcTransportTest::PrintParamInfo);

		class RpcTransportTlsKeyTest
		: public testing::TestWithParam<std::tuple<SocketType, RpcCertificateFormat, RpcKeyFormat>> {
		: public testing::TestWithParam<
		std::tuple<SocketType, RpcCertificateFormat, RpcKeyFormat, uint32_t>> {
		public:
		template <typename A, typename B>
		status_t trust(const A& a, const B& b) {
		auto [socketType, certificateFormat, keyFormat] = GetParam();
		auto [socketType, certificateFormat, keyFormat, serverVersion] = GetParam();
		(void)serverVersion;
		return RpcTransportTestUtils::trust(RpcSecurity::TLS, certificateFormat, a, b);
		}
		static std::string PrintParamInfo(const testing::TestParamInfo<ParamType>& info) {
		auto [socketType, certificateFormat, keyFormat] = info.param;
		auto ret = PrintToString(socketType) + "_certificate_" + PrintToString(certificateFormat) +
		"_key_" + PrintToString(keyFormat);
		return ret;
		auto [socketType, certificateFormat, keyFormat, serverVersion] = info.param;
		return PrintToString(socketType) + "_certificate_" + PrintToString(certificateFormat) +
		"_key_" + PrintToString(keyFormat) + "_serverV" + std::to_string(serverVersion);
		};
		};

		TEST_P(RpcTransportTlsKeyTest, PreSignedCertificate) {
		auto [socketType, certificateFormat, keyFormat] = GetParam();
		auto [socketType, certificateFormat, keyFormat, serverVersion] = GetParam();

		std::vector<uint8_t> pkeyData, certData;
		{
		@@ -2004,8 +2045,8 @@ TEST_P(RpcTransportTlsKeyTest, PreSignedCertificate) {
		auto desPkey = deserializeUnencryptedPrivatekey(pkeyData, keyFormat);
		auto desCert = deserializeCertificate(certData, certificateFormat);
		auto auth = std::make_unique<RpcAuthPreSigned>(std::move(desPkey), std::move(desCert));
		auto utilsParam =
		std::make_tuple(socketType, RpcSecurity::TLS, std::make_optional(certificateFormat));
		auto utilsParam = std::make_tuple(socketType, RpcSecurity::TLS,
		std::make_optional(certificateFormat), serverVersion);

		auto server = std::make_unique<RpcTransportTestUtils::Server>();
		ASSERT_TRUE(server->setUp(utilsParam, std::move(auth)));
		@@ -2024,7 +2065,8 @@ INSTANTIATE_TEST_CASE_P(
		BinderRpc, RpcTransportTlsKeyTest,
		testing::Combine(testing::ValuesIn(testSocketTypes(false /* hasPreconnected*/)),
		testing::Values(RpcCertificateFormat::PEM, RpcCertificateFormat::DER),
		testing::Values(RpcKeyFormat::PEM, RpcKeyFormat::DER)),
		testing::Values(RpcKeyFormat::PEM, RpcKeyFormat::DER),
		testing::ValuesIn(testVersions())),
		RpcTransportTlsKeyTest::PrintParamInfo);

		} // namespace android