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fuchsia / fuchsia / 02930bf563b779128de0a25695432be8a6d0e5c2 / . / zircon / system / utest / fidl / decoding_tests.cc
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// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <lib/fidl/coding.h>
#include <lib/zx/eventpair.h>
#include <stddef.h>
#include <unittest/unittest.h>
#include <zircon/syscalls.h>
#include <memory>
#include "fidl_coded_types.h"
#include "fidl_structs.h"
namespace fidl {
namespace {
// Some notes:
//
// - All tests of out-of-line bounded allocation overruns need to have
// another big out-of-line allocation following it. This
// distinguishes "the buffer is too small" from "the bits on the
// wire asked for more than the type allowed".
// TODO(kulakowski) Change the tests to check for more specific error
// values, once those are settled.
constexpr zx_handle_t dummy_handle_0 = static_cast<zx_handle_t>(23);
constexpr zx_handle_t dummy_handle_1 = static_cast<zx_handle_t>(24);
constexpr zx_handle_t dummy_handle_2 = static_cast<zx_handle_t>(25);
constexpr zx_handle_t dummy_handle_3 = static_cast<zx_handle_t>(26);
constexpr zx_handle_t dummy_handle_4 = static_cast<zx_handle_t>(27);
constexpr zx_handle_t dummy_handle_5 = static_cast<zx_handle_t>(28);
constexpr zx_handle_t dummy_handle_6 = static_cast<zx_handle_t>(29);
constexpr zx_handle_t dummy_handle_7 = static_cast<zx_handle_t>(30);
constexpr zx_handle_t dummy_handle_8 = static_cast<zx_handle_t>(31);
constexpr zx_handle_t dummy_handle_9 = static_cast<zx_handle_t>(32);
constexpr zx_handle_t dummy_handle_10 = static_cast<zx_handle_t>(33);
constexpr zx_handle_t dummy_handle_11 = static_cast<zx_handle_t>(34);
constexpr zx_handle_t dummy_handle_12 = static_cast<zx_handle_t>(35);
constexpr zx_handle_t dummy_handle_13 = static_cast<zx_handle_t>(36);
constexpr zx_handle_t dummy_handle_14 = static_cast<zx_handle_t>(37);
constexpr zx_handle_t dummy_handle_15 = static_cast<zx_handle_t>(38);
constexpr zx_handle_t dummy_handle_16 = static_cast<zx_handle_t>(39);
constexpr zx_handle_t dummy_handle_17 = static_cast<zx_handle_t>(40);
constexpr zx_handle_t dummy_handle_18 = static_cast<zx_handle_t>(41);
constexpr zx_handle_t dummy_handle_19 = static_cast<zx_handle_t>(42);
constexpr zx_handle_t dummy_handle_20 = static_cast<zx_handle_t>(43);
constexpr zx_handle_t dummy_handle_21 = static_cast<zx_handle_t>(44);
constexpr zx_handle_t dummy_handle_22 = static_cast<zx_handle_t>(45);
constexpr zx_handle_t dummy_handle_23 = static_cast<zx_handle_t>(46);
constexpr zx_handle_t dummy_handle_24 = static_cast<zx_handle_t>(47);
constexpr zx_handle_t dummy_handle_25 = static_cast<zx_handle_t>(48);
constexpr zx_handle_t dummy_handle_26 = static_cast<zx_handle_t>(49);
constexpr zx_handle_t dummy_handle_27 = static_cast<zx_handle_t>(50);
constexpr zx_handle_t dummy_handle_28 = static_cast<zx_handle_t>(51);
constexpr zx_handle_t dummy_handle_29 = static_cast<zx_handle_t>(52);
// All sizes in fidl encoding tables are 32 bits. The fidl compiler
// normally enforces this. Check manually in manual tests.
template <typename T, size_t N>
uint32_t ArrayCount(T const (&array)[N]) {
static_assert(N < UINT32_MAX, "Array is too large!");
return N;
}
template <typename T, size_t N>
uint32_t ArraySize(T const (&array)[N]) {
static_assert(sizeof(array) < UINT32_MAX, "Array is too large!");
return sizeof(array);
}
// Check if the other end of the eventpair is valid
bool IsPeerValid(const zx::unowned_eventpair handle) {
zx_signals_t observed_signals = {};
switch (handle->wait_one(ZX_EVENTPAIR_PEER_CLOSED, zx::deadline_after(zx::msec(1)),
&observed_signals)) {
case ZX_ERR_TIMED_OUT:
// timeout implies peer-closed was not observed
return true;
case ZX_OK:
return (observed_signals & ZX_EVENTPAIR_PEER_CLOSED) == 0;
default:
return false;
}
}
bool decode_null_decode_parameters() {
BEGIN_TEST;
zx_handle_t handles[] = {static_cast<zx_handle_t>(23)};
// Null message type.
{
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
const char* error = nullptr;
auto status = fidl_decode(nullptr, &message, sizeof(nonnullable_handle_message_layout), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
}
// Null message.
{
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, nullptr,
sizeof(nonnullable_handle_message_layout), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
}
// Null handles, for a message that has a handle.
{
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message,
sizeof(nonnullable_handle_message_layout), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
}
// Null handles but positive handle count.
{
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message,
sizeof(nonnullable_handle_message_layout), nullptr, 1, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
}
// A null error string pointer is ok, though.
{
auto status = fidl_decode(nullptr, nullptr, 0u, nullptr, 0u, nullptr);
EXPECT_NE(status, ZX_OK);
}
// A null error is also ok in success cases.
{
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
auto status = fidl_decode(&nonnullable_handle_message_type, &message,
sizeof(nonnullable_handle_message_layout), handles,
ArrayCount(handles), nullptr);
EXPECT_EQ(status, ZX_OK);
}
END_TEST;
}
bool decode_single_present_handle_unaligned_error() {
BEGIN_TEST;
// Test a short, unaligned version of nonnullable message
// handle. All fidl message objects should be 8 byte aligned.
//
// We use a byte array rather than fidl_message_header_t to avoid
// aligning to 8 bytes.
struct unaligned_nonnullable_handle_inline_data {
uint8_t header[sizeof(fidl_message_header_t)];
zx_handle_t handle;
};
struct unaligned_nonnullable_handle_message_layout {
unaligned_nonnullable_handle_inline_data inline_struct;
};
unaligned_nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
// Decoding the unaligned version of the struct should fail.
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nonnullable_string_unaligned_error() {
BEGIN_TEST;
unbounded_nonnullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello!", 6);
// Copy the message to unaligned storage one byte off from true alignment
unbounded_nonnullable_string_message_layout message_storage[2];
uint8_t* unaligned_ptr = reinterpret_cast<uint8_t*>(&message_storage[0]) + 1;
memcpy(unaligned_ptr, &message, sizeof(message));
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_string_message_type, unaligned_ptr,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
ASSERT_STR_STR(error, "must be aligned to FIDL_ALIGNMENT");
END_TEST;
}
bool decode_single_present_handle() {
BEGIN_TEST;
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.handle, dummy_handle_0);
END_TEST;
}
bool decode_single_present_handle_check_trailing_padding() {
BEGIN_TEST;
// There are four padding bytes; any of them not being zero should lead to an error.
for (size_t i = 0; i < 4; i++) {
constexpr size_t kBufferSize = sizeof(nonnullable_handle_message_layout);
nonnullable_handle_message_layout message;
uint8_t* buffer = reinterpret_cast<uint8_t*>(&message);
memset(buffer, 0, kBufferSize);
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
buffer[kBufferSize - 4 + i] = 0xAA;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, kBufferSize, handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_STR_EQ(error, "non-zero padding bytes detected");
}
END_TEST;
}
bool decode_too_many_handles_specified_error() {
BEGIN_TEST;
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
ZX_HANDLE_INVALID,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
EXPECT_EQ(message.inline_struct.handle, dummy_handle_0);
END_TEST;
}
bool decode_too_many_handles_specified_should_close_handles() {
BEGIN_TEST;
nonnullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
zx::eventpair ep0, ep1;
ASSERT_EQ(zx::eventpair::create(0, &ep0, &ep1), ZX_OK);
zx_handle_t handles[] = {
ep0.get(),
ZX_HANDLE_INVALID,
};
ASSERT_TRUE(IsPeerValid(zx::unowned_eventpair(ep1)));
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
ASSERT_EQ(status, ZX_ERR_INVALID_ARGS);
ASSERT_NONNULL(error);
ASSERT_EQ(message.inline_struct.handle, ep0.get());
ASSERT_FALSE(IsPeerValid(zx::unowned_eventpair(ep1)));
// When the test succeeds, |ep0| is closed by the decoder.
zx_handle_t unused = ep0.release();
(void)unused;
END_TEST;
}
bool decode_too_many_bytes_specified_should_close_handles() {
BEGIN_TEST;
constexpr size_t kSizeTooBig = sizeof(nonnullable_handle_message_layout) * 2;
std::unique_ptr<uint8_t[]> buffer = std::make_unique<uint8_t[]>(kSizeTooBig);
nonnullable_handle_message_layout& message =
*reinterpret_cast<nonnullable_handle_message_layout*>(buffer.get());
message.inline_struct.handle = FIDL_HANDLE_PRESENT;
zx::eventpair ep0, ep1;
ASSERT_EQ(zx::eventpair::create(0, &ep0, &ep1), ZX_OK);
zx_handle_t handles[] = {
ep0.get(),
};
ASSERT_TRUE(IsPeerValid(zx::unowned_eventpair(ep1)));
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_message_type, &message, kSizeTooBig, handles,
ArrayCount(handles), &error);
ASSERT_EQ(status, ZX_ERR_INVALID_ARGS);
ASSERT_NONNULL(error);
ASSERT_EQ(message.inline_struct.handle, ep0.get());
ASSERT_FALSE(IsPeerValid(zx::unowned_eventpair(ep1)));
// When the test succeeds, |ep0| is closed by the decoder.
zx_handle_t unused = ep0.release();
(void)unused;
END_TEST;
}
bool decode_multiple_present_handles() {
BEGIN_TEST;
multiple_nonnullable_handles_message_layout message = {};
message.inline_struct.handle_0 = FIDL_HANDLE_PRESENT;
message.inline_struct.handle_1 = FIDL_HANDLE_PRESENT;
message.inline_struct.handle_2 = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
};
const char* error = nullptr;
auto status = fidl_decode(&multiple_nonnullable_handles_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data_0, 0u);
EXPECT_EQ(message.inline_struct.handle_0, dummy_handle_0);
EXPECT_EQ(message.inline_struct.data_1, 0u);
EXPECT_EQ(message.inline_struct.handle_1, dummy_handle_1);
EXPECT_EQ(message.inline_struct.handle_2, dummy_handle_2);
EXPECT_EQ(message.inline_struct.data_2, 0u);
END_TEST;
}
bool decode_single_absent_handle() {
BEGIN_TEST;
nullable_handle_message_layout message = {};
message.inline_struct.handle = FIDL_HANDLE_ABSENT;
const char* error = nullptr;
auto status =
fidl_decode(&nullable_handle_message_type, &message, sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.handle, ZX_HANDLE_INVALID);
END_TEST;
}
bool decode_multiple_absent_handles() {
BEGIN_TEST;
multiple_nullable_handles_message_layout message = {};
message.inline_struct.handle_0 = FIDL_HANDLE_ABSENT;
message.inline_struct.handle_1 = FIDL_HANDLE_ABSENT;
message.inline_struct.handle_2 = FIDL_HANDLE_ABSENT;
const char* error = nullptr;
auto status = fidl_decode(&multiple_nullable_handles_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data_0, 0u);
EXPECT_EQ(message.inline_struct.handle_0, ZX_HANDLE_INVALID);
EXPECT_EQ(message.inline_struct.data_1, 0u);
EXPECT_EQ(message.inline_struct.handle_1, ZX_HANDLE_INVALID);
EXPECT_EQ(message.inline_struct.handle_2, ZX_HANDLE_INVALID);
EXPECT_EQ(message.inline_struct.data_2, 0u);
END_TEST;
}
bool decode_array_of_present_handles() {
BEGIN_TEST;
array_of_nonnullable_handles_message_layout message = {};
message.inline_struct.handles[0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.handles[0], dummy_handle_0);
EXPECT_EQ(message.inline_struct.handles[1], dummy_handle_1);
EXPECT_EQ(message.inline_struct.handles[2], dummy_handle_2);
EXPECT_EQ(message.inline_struct.handles[3], dummy_handle_3);
END_TEST;
}
bool decode_array_of_present_handles_error_closes_handles() {
BEGIN_TEST;
array_of_nonnullable_handles_message_layout message = {};
zx_handle_t handle_pairs[4][2];
// Use eventpairs so that we can know for sure that handles were closed by fidl_decode.
for (uint32_t i = 0; i < ArrayCount(handle_pairs); ++i) {
ASSERT_EQ(zx_eventpair_create(0u, &handle_pairs[i][0], &handle_pairs[i][1]), ZX_OK);
}
message.inline_struct.handles[0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t out_of_line_handles[4] = {
handle_pairs[0][0],
handle_pairs[1][0],
handle_pairs[2][0],
handle_pairs[3][0],
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_message_type, &message, sizeof(message),
out_of_line_handles,
// -2 makes this invalid.
ArrayCount(out_of_line_handles) - 2, &error);
// Should fail because we we pass in a max_handles < the actual number of handles.
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
// All the handles that we told fidl_decode about should be closed.
uint32_t i;
for (i = 0; i < ArrayCount(handle_pairs) - 2; ++i) {
zx_signals_t observed_signals;
EXPECT_EQ(zx_object_wait_one(handle_pairs[i][1], ZX_EVENTPAIR_PEER_CLOSED,
1, // deadline shouldn't matter, should return immediately.
&observed_signals),
ZX_OK);
EXPECT_EQ(observed_signals & ZX_EVENTPAIR_PEER_CLOSED, ZX_EVENTPAIR_PEER_CLOSED);
EXPECT_EQ(zx_handle_close(handle_pairs[i][1]), ZX_OK); // [i][0] was closed by fidl_encode.
}
// But the other ones should not be.
for (; i < ArrayCount(handle_pairs); ++i) {
zx_signals_t observed_signals;
EXPECT_EQ(zx_object_wait_one(handle_pairs[i][1], ZX_EVENTPAIR_PEER_CLOSED,
zx_clock_get_monotonic() + 1, &observed_signals),
ZX_ERR_TIMED_OUT);
EXPECT_EQ(observed_signals & ZX_EVENTPAIR_PEER_CLOSED, 0);
EXPECT_EQ(zx_handle_close(handle_pairs[i][0]), ZX_OK);
EXPECT_EQ(zx_handle_close(handle_pairs[i][1]), ZX_OK);
}
END_TEST;
}
bool decode_array_of_nonnullable_handles_some_absent_error() {
BEGIN_TEST;
array_of_nonnullable_handles_message_layout message = {};
message.inline_struct.handles[0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[3] = FIDL_HANDLE_ABSENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_array_of_nullable_handles() {
BEGIN_TEST;
array_of_nullable_handles_message_layout message = {};
message.inline_struct.handles[0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1] = FIDL_HANDLE_ABSENT;
message.inline_struct.handles[2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[3] = FIDL_HANDLE_ABSENT;
message.inline_struct.handles[4] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nullable_handles_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.handles[0], dummy_handle_0);
EXPECT_EQ(message.inline_struct.handles[1], ZX_HANDLE_INVALID);
EXPECT_EQ(message.inline_struct.handles[2], dummy_handle_1);
EXPECT_EQ(message.inline_struct.handles[3], ZX_HANDLE_INVALID);
EXPECT_EQ(message.inline_struct.handles[4], dummy_handle_2);
END_TEST;
}
bool decode_array_of_nullable_handles_with_insufficient_handles_error() {
BEGIN_TEST;
array_of_nullable_handles_message_layout message = {};
message.inline_struct.handles[0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1] = FIDL_HANDLE_ABSENT;
message.inline_struct.handles[2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[3] = FIDL_HANDLE_ABSENT;
message.inline_struct.handles[4] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nullable_handles_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_array_of_array_of_present_handles() {
BEGIN_TEST;
array_of_array_of_nonnullable_handles_message_layout message = {};
message.inline_struct.handles[0][0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[0][1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[0][2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[0][3] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1][0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1][1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1][2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[1][3] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2][0] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2][1] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2][2] = FIDL_HANDLE_PRESENT;
message.inline_struct.handles[2][3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0, dummy_handle_1, dummy_handle_2, dummy_handle_3,
dummy_handle_4, dummy_handle_5, dummy_handle_6, dummy_handle_7,
dummy_handle_8, dummy_handle_9, dummy_handle_10, dummy_handle_11,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_array_of_nonnullable_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.handles[0][0], dummy_handle_0);
EXPECT_EQ(message.inline_struct.handles[0][1], dummy_handle_1);
EXPECT_EQ(message.inline_struct.handles[0][2], dummy_handle_2);
EXPECT_EQ(message.inline_struct.handles[0][3], dummy_handle_3);
EXPECT_EQ(message.inline_struct.handles[1][0], dummy_handle_4);
EXPECT_EQ(message.inline_struct.handles[1][1], dummy_handle_5);
EXPECT_EQ(message.inline_struct.handles[1][2], dummy_handle_6);
EXPECT_EQ(message.inline_struct.handles[1][3], dummy_handle_7);
EXPECT_EQ(message.inline_struct.handles[2][0], dummy_handle_8);
EXPECT_EQ(message.inline_struct.handles[2][1], dummy_handle_9);
EXPECT_EQ(message.inline_struct.handles[2][2], dummy_handle_10);
EXPECT_EQ(message.inline_struct.handles[2][3], dummy_handle_11);
END_TEST;
}
bool decode_out_of_line_array() {
BEGIN_TEST;
out_of_line_array_of_nonnullable_handles_message_layout message = {};
message.inline_struct.maybe_array =
reinterpret_cast<array_of_nonnullable_handles*>(FIDL_ALLOC_PRESENT);
message.data.handles[0] = FIDL_HANDLE_PRESENT;
message.data.handles[1] = FIDL_HANDLE_PRESENT;
message.data.handles[2] = FIDL_HANDLE_PRESENT;
message.data.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&out_of_line_array_of_nonnullable_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto array_ptr = message.inline_struct.maybe_array;
EXPECT_NONNULL(array_ptr);
EXPECT_EQ(array_ptr->handles[0], dummy_handle_0);
EXPECT_EQ(array_ptr->handles[1], dummy_handle_1);
EXPECT_EQ(array_ptr->handles[2], dummy_handle_2);
EXPECT_EQ(array_ptr->handles[3], dummy_handle_3);
END_TEST;
}
bool decode_present_nonnullable_string() {
BEGIN_TEST;
unbounded_nonnullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello!", 6);
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.string.size, 6);
EXPECT_EQ(message.inline_struct.string.data[0], 'h');
EXPECT_EQ(message.inline_struct.string.data[1], 'e');
EXPECT_EQ(message.inline_struct.string.data[2], 'l');
EXPECT_EQ(message.inline_struct.string.data[3], 'l');
EXPECT_EQ(message.inline_struct.string.data[4], 'o');
EXPECT_EQ(message.inline_struct.string.data[5], '!');
END_TEST;
}
bool decode_present_nullable_string() {
BEGIN_TEST;
unbounded_nullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello!", 6);
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.string.size, 6);
EXPECT_EQ(message.inline_struct.string.data[0], 'h');
EXPECT_EQ(message.inline_struct.string.data[1], 'e');
EXPECT_EQ(message.inline_struct.string.data[2], 'l');
EXPECT_EQ(message.inline_struct.string.data[3], 'l');
EXPECT_EQ(message.inline_struct.string.data[4], 'o');
EXPECT_EQ(message.inline_struct.string.data[5], '!');
END_TEST;
}
bool decode_multiple_present_nullable_string() {
BEGIN_TEST;
// Among other things, this test ensures we handle out-of-line
// alignment to FIDL_ALIGNMENT (i.e., 8) bytes correctly.
multiple_nullable_strings_message_layout message;
memset(&message, 0, sizeof(message));
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.string2 = fidl_string_t{8, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello ", 6);
memcpy(message.data2, "world!!! ", 8);
const char* error = nullptr;
auto status = fidl_decode(&multiple_nullable_strings_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.string.size, 6);
EXPECT_EQ(message.inline_struct.string.data[0], 'h');
EXPECT_EQ(message.inline_struct.string.data[1], 'e');
EXPECT_EQ(message.inline_struct.string.data[2], 'l');
EXPECT_EQ(message.inline_struct.string.data[3], 'l');
EXPECT_EQ(message.inline_struct.string.data[4], 'o');
EXPECT_EQ(message.inline_struct.string.data[5], ' ');
EXPECT_EQ(message.inline_struct.string2.size, 8);
EXPECT_EQ(message.inline_struct.string2.data[0], 'w');
EXPECT_EQ(message.inline_struct.string2.data[1], 'o');
EXPECT_EQ(message.inline_struct.string2.data[2], 'r');
EXPECT_EQ(message.inline_struct.string2.data[3], 'l');
EXPECT_EQ(message.inline_struct.string2.data[4], 'd');
EXPECT_EQ(message.inline_struct.string2.data[5], '!');
EXPECT_EQ(message.inline_struct.string2.data[6], '!');
EXPECT_EQ(message.inline_struct.string2.data[7], '!');
EXPECT_EQ(message.inline_struct.string2.data[7], '!');
END_TEST;
}
bool decode_absent_nonnullable_string_error() {
BEGIN_TEST;
unbounded_nonnullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_absent_nullable_string() {
BEGIN_TEST;
unbounded_nullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{0, reinterpret_cast<char*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_string_message_type, &message,
sizeof(message.inline_struct), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
END_TEST;
}
bool decode_present_nonnullable_bounded_string() {
BEGIN_TEST;
bounded_32_nonnullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello!", 6);
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.string.size, 6);
EXPECT_EQ(message.inline_struct.string.data[0], 'h');
EXPECT_EQ(message.inline_struct.string.data[1], 'e');
EXPECT_EQ(message.inline_struct.string.data[2], 'l');
EXPECT_EQ(message.inline_struct.string.data[3], 'l');
EXPECT_EQ(message.inline_struct.string.data[4], 'o');
EXPECT_EQ(message.inline_struct.string.data[5], '!');
END_TEST;
}
bool decode_present_nullable_bounded_string() {
BEGIN_TEST;
bounded_32_nullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello!", 6);
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.string.size, 6);
EXPECT_EQ(message.inline_struct.string.data[0], 'h');
EXPECT_EQ(message.inline_struct.string.data[1], 'e');
EXPECT_EQ(message.inline_struct.string.data[2], 'l');
EXPECT_EQ(message.inline_struct.string.data[3], 'l');
EXPECT_EQ(message.inline_struct.string.data[4], 'o');
EXPECT_EQ(message.inline_struct.string.data[5], '!');
END_TEST;
}
bool decode_absent_nonnullable_bounded_string_error() {
BEGIN_TEST;
bounded_32_nonnullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_string_message_type, &message, sizeof(message),
nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_absent_nullable_bounded_string() {
BEGIN_TEST;
bounded_32_nullable_string_message_layout message = {};
message.inline_struct.string = fidl_string_t{0, reinterpret_cast<char*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_string_message_type, &message,
sizeof(message.inline_struct), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
END_TEST;
}
bool decode_present_nonnullable_bounded_string_short_error() {
BEGIN_TEST;
multiple_short_nonnullable_strings_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.string2 = fidl_string_t{8, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello ", 6);
memcpy(message.data2, "world! ", 6);
const char* error = nullptr;
auto status = fidl_decode(&multiple_short_nonnullable_strings_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nullable_bounded_string_short_error() {
BEGIN_TEST;
multiple_short_nullable_strings_message_layout message = {};
message.inline_struct.string = fidl_string_t{6, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.string2 = fidl_string_t{8, reinterpret_cast<char*>(FIDL_ALLOC_PRESENT)};
memcpy(message.data, "hello ", 6);
memcpy(message.data2, "world! ", 6);
const char* error = nullptr;
auto status = fidl_decode(&multiple_short_nullable_strings_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_vector_with_huge_count() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_uint32_message_layout message = {};
// (2^30 + 4) * 4 (4 == sizeof(uint32_t)) overflows to 16 when stored as uint32_t.
// We want 16 because it happens to be the actual size of the vector data in the message,
// so we can trigger the overflow without triggering the "tried to claim too many bytes" or
// "didn't use all the bytes in the message" errors.
message.inline_struct.vector =
fidl_vector_t{(1ull << 30) + 4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
const char expected_error_msg[] = "integer overflow calculating vector size";
EXPECT_STR_EQ(expected_error_msg, error, "wrong error msg");
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NONNULL(message_uint32);
END_TEST;
}
bool decode_present_nonnullable_vector_of_handles() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_EQ(message_handles[0], dummy_handle_0);
EXPECT_EQ(message_handles[1], dummy_handle_1);
EXPECT_EQ(message_handles[2], dummy_handle_2);
EXPECT_EQ(message_handles[3], dummy_handle_3);
END_TEST;
}
bool decode_present_nullable_vector_of_handles() {
BEGIN_TEST;
unbounded_nullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_vector_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_EQ(message_handles[0], dummy_handle_0);
EXPECT_EQ(message_handles[1], dummy_handle_1);
EXPECT_EQ(message_handles[2], dummy_handle_2);
EXPECT_EQ(message_handles[3], dummy_handle_3);
END_TEST;
}
bool decode_absent_nonnullable_vector_of_handles_error() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_absent_nullable_vector_of_handles() {
BEGIN_TEST;
unbounded_nullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{0, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_vector_of_handles_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_handles);
END_TEST;
}
bool decode_present_nonnullable_bounded_vector_of_handles() {
BEGIN_TEST;
bounded_32_nonnullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_vector_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_EQ(message_handles[0], dummy_handle_0);
EXPECT_EQ(message_handles[1], dummy_handle_1);
EXPECT_EQ(message_handles[2], dummy_handle_2);
EXPECT_EQ(message_handles[3], dummy_handle_3);
END_TEST;
}
bool decode_present_nullable_bounded_vector_of_handles() {
BEGIN_TEST;
bounded_32_nullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_vector_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_EQ(message_handles[0], dummy_handle_0);
EXPECT_EQ(message_handles[1], dummy_handle_1);
EXPECT_EQ(message_handles[2], dummy_handle_2);
EXPECT_EQ(message_handles[3], dummy_handle_3);
END_TEST;
}
bool decode_absent_nonnullable_bounded_vector_of_handles() {
BEGIN_TEST;
bounded_32_nonnullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_vector_of_handles_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_handles);
END_TEST;
}
bool decode_absent_nullable_bounded_vector_of_handles() {
BEGIN_TEST;
bounded_32_nullable_vector_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{0, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_vector_of_handles_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_handles = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_handles);
END_TEST;
}
bool decode_present_nonnullable_bounded_vector_of_handles_short_error() {
BEGIN_TEST;
multiple_nonnullable_vectors_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.vector2 = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
message.handles2[0] = FIDL_HANDLE_PRESENT;
message.handles2[1] = FIDL_HANDLE_PRESENT;
message.handles2[2] = FIDL_HANDLE_PRESENT;
message.handles2[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0, dummy_handle_1, dummy_handle_2, dummy_handle_3,
dummy_handle_4, dummy_handle_5, dummy_handle_6, dummy_handle_7,
};
const char* error = nullptr;
auto status = fidl_decode(&multiple_nonnullable_vectors_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nullable_bounded_vector_of_handles_short_error() {
BEGIN_TEST;
multiple_nullable_vectors_of_handles_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.vector2 = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.handles[0] = FIDL_HANDLE_PRESENT;
message.handles[1] = FIDL_HANDLE_PRESENT;
message.handles[2] = FIDL_HANDLE_PRESENT;
message.handles[3] = FIDL_HANDLE_PRESENT;
message.handles2[0] = FIDL_HANDLE_PRESENT;
message.handles2[1] = FIDL_HANDLE_PRESENT;
message.handles2[2] = FIDL_HANDLE_PRESENT;
message.handles2[3] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0, dummy_handle_1, dummy_handle_2, dummy_handle_3,
dummy_handle_4, dummy_handle_5, dummy_handle_6, dummy_handle_7,
};
const char* error = nullptr;
auto status = fidl_decode(&multiple_nullable_vectors_of_handles_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nonnullable_vector_of_uint32() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NONNULL(message_uint32);
END_TEST;
}
bool decode_present_nullable_vector_of_uint32() {
BEGIN_TEST;
unbounded_nullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_vector_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NONNULL(message_uint32);
END_TEST;
}
bool decode_absent_nonnullable_vector_of_uint32_error() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_absent_and_empty_nonnullable_vector_of_uint32_error() {
BEGIN_TEST;
unbounded_nonnullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{0, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_absent_nullable_vector_of_uint32() {
BEGIN_TEST;
unbounded_nullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{0, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_uint32);
END_TEST;
}
bool decode_absent_nullable_vector_of_uint32_non_zero_length_error() {
BEGIN_TEST;
unbounded_nullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&unbounded_nullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nonnullable_bounded_vector_of_uint32() {
BEGIN_TEST;
bounded_32_nonnullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NONNULL(message_uint32);
END_TEST;
}
bool decode_present_nullable_bounded_vector_of_uint32() {
BEGIN_TEST;
bounded_32_nullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_vector_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NONNULL(message_uint32);
END_TEST;
}
bool decode_absent_nonnullable_bounded_vector_of_uint32() {
BEGIN_TEST;
bounded_32_nonnullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nonnullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_uint32);
END_TEST;
}
bool decode_absent_nullable_bounded_vector_of_uint32() {
BEGIN_TEST;
bounded_32_nullable_vector_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{0, reinterpret_cast<void*>(FIDL_ALLOC_ABSENT)};
const char* error = nullptr;
auto status = fidl_decode(&bounded_32_nullable_vector_of_uint32_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
auto message_uint32 = reinterpret_cast<zx_handle_t*>(message.inline_struct.vector.data);
EXPECT_NULL(message_uint32);
END_TEST;
}
bool decode_present_nonnullable_bounded_vector_of_uint32_short_error() {
BEGIN_TEST;
multiple_nonnullable_vectors_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.vector2 = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&multiple_nonnullable_vectors_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_present_nullable_bounded_vector_of_uint32_short_error() {
BEGIN_TEST;
multiple_nullable_vectors_of_uint32_message_layout message = {};
message.inline_struct.vector = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
message.inline_struct.vector2 = fidl_vector_t{4, reinterpret_cast<void*>(FIDL_ALLOC_PRESENT)};
const char* error = nullptr;
auto status = fidl_decode(&multiple_nullable_vectors_of_uint32_message_type, &message,
sizeof(message), nullptr, 0, &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_bad_tagged_union_error() {
BEGIN_TEST;
nonnullable_handle_union_message_layout message = {};
message.inline_struct.data.tag = 43u;
message.inline_struct.data.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_union_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
END_TEST;
}
bool decode_single_membered_present_nonnullable_union() {
BEGIN_TEST;
nonnullable_handle_union_message_layout message = {};
message.inline_struct.data.tag = nonnullable_handle_union_kHandle;
message.inline_struct.data.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_union_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data.tag, nonnullable_handle_union_kHandle);
EXPECT_EQ(message.inline_struct.data.handle, dummy_handle_0);
END_TEST;
}
bool decode_many_membered_present_nonnullable_union() {
BEGIN_TEST;
array_of_nonnullable_handles_union_message_layout message;
memset(&message, 0, sizeof(message));
message.inline_struct.data.tag = array_of_nonnullable_handles_union_kArrayOfArrayOfHandles;
message.inline_struct.data.array_of_array_of_handles[0][0] = FIDL_HANDLE_PRESENT;
message.inline_struct.data.array_of_array_of_handles[0][1] = FIDL_HANDLE_PRESENT;
message.inline_struct.data.array_of_array_of_handles[1][0] = FIDL_HANDLE_PRESENT;
message.inline_struct.data.array_of_array_of_handles[1][1] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_union_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data.tag,
array_of_nonnullable_handles_union_kArrayOfArrayOfHandles);
EXPECT_EQ(message.inline_struct.data.array_of_array_of_handles[0][0], dummy_handle_0);
EXPECT_EQ(message.inline_struct.data.array_of_array_of_handles[0][1], dummy_handle_1);
EXPECT_EQ(message.inline_struct.data.array_of_array_of_handles[1][0], dummy_handle_2);
EXPECT_EQ(message.inline_struct.data.array_of_array_of_handles[1][1], dummy_handle_3);
END_TEST;
}
bool decode_many_membered_present_nonnullable_union_check_padding() {
BEGIN_TEST;
// 4 bytes tag + 16 bytes largest variant + 4 bytes padding = 24
constexpr size_t kUnionSize = 24;
static_assert(sizeof(array_of_nonnullable_handles_union_message_layout::inline_struct.data) ==
kUnionSize);
// The union comes after the 16 byte message header.
constexpr size_t kUnionOffset = 16;
// 4 bytes tag
constexpr size_t kHandleOffset = 4;
// Any single padding byte being non-zero should result in an error.
for (size_t i = kHandleOffset + sizeof(zx_handle_t); i < kUnionSize; i++) {
constexpr size_t kBufferSize = sizeof(array_of_nonnullable_handles_union_message_layout);
array_of_nonnullable_handles_union_message_layout message;
uint8_t* buffer = reinterpret_cast<uint8_t*>(&message);
memset(buffer, 0, kBufferSize);
ASSERT_EQ(reinterpret_cast<uint8_t*>(&message.inline_struct.data) -
reinterpret_cast<uint8_t*>(&message),
kUnionOffset);
ASSERT_EQ(reinterpret_cast<uint8_t*>(&message.inline_struct.data.handle) -
reinterpret_cast<uint8_t*>(&message.inline_struct.data),
kHandleOffset);
message.inline_struct.data.tag = array_of_nonnullable_handles_union_kHandle;
message.inline_struct.data.handle = FIDL_HANDLE_PRESENT;
buffer[kUnionOffset + i] = 0xAA;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_union_message_type, &message,
kBufferSize, handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_STR_EQ(error, "non-zero padding bytes detected");
}
END_TEST;
}
bool decode_single_membered_present_nullable_union() {
BEGIN_TEST;
nonnullable_handle_union_ptr_message_layout message = {};
message.inline_struct.data = reinterpret_cast<nonnullable_handle_union*>(FIDL_ALLOC_PRESENT);
message.data.tag = nonnullable_handle_union_kHandle;
message.data.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_union_ptr_message_type, &message, sizeof(message),
handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data, &message.data);
EXPECT_EQ(message.inline_struct.data->tag, nonnullable_handle_union_kHandle);
EXPECT_EQ(message.inline_struct.data->handle, dummy_handle_0);
END_TEST;
}
bool decode_many_membered_present_nullable_union() {
BEGIN_TEST;
array_of_nonnullable_handles_union_ptr_message_layout message;
memset(&message, 0, sizeof(message));
message.inline_struct.data =
reinterpret_cast<array_of_nonnullable_handles_union*>(FIDL_ALLOC_PRESENT);
message.data.tag = array_of_nonnullable_handles_union_kArrayOfArrayOfHandles;
message.data.array_of_array_of_handles[0][0] = FIDL_HANDLE_PRESENT;
message.data.array_of_array_of_handles[0][1] = FIDL_HANDLE_PRESENT;
message.data.array_of_array_of_handles[1][0] = FIDL_HANDLE_PRESENT;
message.data.array_of_array_of_handles[1][1] = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_union_ptr_message_type, &message,
sizeof(message), handles, ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_EQ(message.inline_struct.data, &message.data);
EXPECT_EQ(message.inline_struct.data->tag,
array_of_nonnullable_handles_union_kArrayOfArrayOfHandles);
EXPECT_EQ(message.inline_struct.data->array_of_array_of_handles[0][0], dummy_handle_0);
EXPECT_EQ(message.inline_struct.data->array_of_array_of_handles[0][1], dummy_handle_1);
EXPECT_EQ(message.inline_struct.data->array_of_array_of_handles[1][0], dummy_handle_2);
EXPECT_EQ(message.inline_struct.data->array_of_array_of_handles[1][1], dummy_handle_3);
END_TEST;
}
bool decode_single_membered_absent_nullable_union() {
BEGIN_TEST;
nonnullable_handle_union_ptr_message_layout message = {};
message.inline_struct.data = reinterpret_cast<nonnullable_handle_union*>(FIDL_ALLOC_ABSENT);
const char* error = nullptr;
auto status = fidl_decode(&nonnullable_handle_union_ptr_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_NULL(message.inline_struct.data);
END_TEST;
}
bool decode_many_membered_absent_nullable_union() {
BEGIN_TEST;
array_of_nonnullable_handles_union_ptr_message_layout message = {};
message.inline_struct.data =
reinterpret_cast<array_of_nonnullable_handles_union*>(FIDL_ALLOC_ABSENT);
const char* error = nullptr;
auto status = fidl_decode(&array_of_nonnullable_handles_union_ptr_message_type, &message,
sizeof(message.inline_struct), nullptr, 0u, &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
EXPECT_NULL(message.inline_struct.data);
END_TEST;
}
bool decode_nested_nonnullable_structs() {
BEGIN_TEST;
nested_structs_message_layout message = {};
message.inline_struct.l0.handle_0 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.handle_1 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.l2.handle_2 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.l2.l3.handle_3 = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&nested_structs_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
// Note the traversal order! l1 -> l3 -> l2 -> l0
EXPECT_EQ(message.inline_struct.l0.l1.handle_1, dummy_handle_0);
EXPECT_EQ(message.inline_struct.l0.l1.l2.l3.handle_3, dummy_handle_1);
EXPECT_EQ(message.inline_struct.l0.l1.l2.handle_2, dummy_handle_2);
EXPECT_EQ(message.inline_struct.l0.handle_0, dummy_handle_3);
END_TEST;
}
bool decode_nested_nonnullable_structs_check_padding() {
BEGIN_TEST;
// Wire-format:
// message
// - 16 bytes header
// + struct_level_0 ------------- offset 16 = 4 * 4
// - uint64_t
// + struct_level_1 ----------- offset 24 = 4 * 6
// - zx_handle_t
// - (4 bytes padding) ------ offset 28 = 4 * 7
// + struct_level_2 --------- offset 32 = 4 * 8
// - uint64_t
// + struct_level_3 ------- offset 40 = 4 * 10
// - uint32_t
// - zx_handle_t
// - zx_handle_t
// - (4 bytes padding) ---- offset 52 = 4 * 13
// - uint64_t
// - zx_handle_t
// - (4 bytes padding) -------- offset 68 = 4 * 17
static_assert(sizeof(nested_structs_message_layout) == 68 + 4);
// Hence the padding bytes are located at:
size_t padding_offsets[] = {
28, 29, 30, 31, 52, 53, 54, 55, 68, 69, 70, 71,
};
for (const auto padding_offset : padding_offsets) {
constexpr size_t kBufferSize = sizeof(nested_structs_message_layout);
nested_structs_message_layout message;
uint8_t* buffer = reinterpret_cast<uint8_t*>(&message);
memset(buffer, 0, kBufferSize);
message.inline_struct.l0.handle_0 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.handle_1 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.l2.handle_2 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0.l1.l2.l3.handle_3 = FIDL_HANDLE_PRESENT;
buffer[padding_offset] = 0xAA;
zx_handle_t handles[] = {
dummy_handle_0,
dummy_handle_1,
dummy_handle_2,
dummy_handle_3,
};
const char* error = nullptr;
auto status = fidl_decode(&nested_structs_message_type, &message, kBufferSize, handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_STR_EQ(error, "non-zero padding bytes detected");
}
END_TEST;
}
bool decode_nested_nullable_structs() {
BEGIN_TEST;
// See below for the handle traversal order.
nested_struct_ptrs_message_layout message = {};
message.inline_struct.l0_present = reinterpret_cast<struct_ptr_level_0*>(FIDL_ALLOC_PRESENT);
message.inline_struct.l0_inline.l1_present =
reinterpret_cast<struct_ptr_level_1*>(FIDL_ALLOC_PRESENT);
message.inline_struct.l0_inline.l1_inline.l2_present =
reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_PRESENT);
message.inline_struct.l0_inline.l1_inline.l2_inline.l3_present =
reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.in_in_out_2.l3_present = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.in_out_1.l2_present = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_PRESENT);
message.in_out_1.l2_inline.l3_present = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.in_out_out_2.l3_present = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.out_0.l1_present = reinterpret_cast<struct_ptr_level_1*>(FIDL_ALLOC_PRESENT);
message.out_0.l1_inline.l2_present = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_PRESENT);
message.out_0.l1_inline.l2_inline.l3_present =
reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.out_in_out_2.l3_present = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.out_out_1.l2_present = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_PRESENT);
message.out_out_1.l2_inline.l3_present =
reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.out_out_out_2.l3_present = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_PRESENT);
message.inline_struct.l0_absent = reinterpret_cast<struct_ptr_level_0*>(FIDL_ALLOC_ABSENT);
message.inline_struct.l0_inline.l1_absent =
reinterpret_cast<struct_ptr_level_1*>(FIDL_ALLOC_ABSENT);
message.inline_struct.l0_inline.l1_inline.l2_absent =
reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_ABSENT);
message.inline_struct.l0_inline.l1_inline.l2_inline.l3_absent =
reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.in_in_out_2.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.in_out_1.l2_absent = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_ABSENT);
message.in_out_1.l2_inline.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.in_out_out_2.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.out_0.l1_absent = reinterpret_cast<struct_ptr_level_1*>(FIDL_ALLOC_ABSENT);
message.out_0.l1_inline.l2_absent = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_ABSENT);
message.out_0.l1_inline.l2_inline.l3_absent =
reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.out_in_out_2.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.out_out_1.l2_absent = reinterpret_cast<struct_ptr_level_2*>(FIDL_ALLOC_ABSENT);
message.out_out_1.l2_inline.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.out_out_out_2.l3_absent = reinterpret_cast<struct_ptr_level_3*>(FIDL_ALLOC_ABSENT);
message.inline_struct.l0_inline.l1_inline.handle_1 = FIDL_HANDLE_PRESENT;
message.in_in_out_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.in_in_out_2.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.in_in_out_2.handle_2 = FIDL_HANDLE_PRESENT;
message.in_in_in_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0_inline.l1_inline.l2_inline.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0_inline.l1_inline.l2_inline.handle_2 = FIDL_HANDLE_PRESENT;
message.inline_struct.l0_inline.handle_0 = FIDL_HANDLE_PRESENT;
message.in_out_1.handle_1 = FIDL_HANDLE_PRESENT;
message.in_out_out_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.in_out_out_2.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.in_out_out_2.handle_2 = FIDL_HANDLE_PRESENT;
message.in_out_in_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.in_out_1.l2_inline.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.in_out_1.l2_inline.handle_2 = FIDL_HANDLE_PRESENT;
message.out_0.l1_inline.handle_1 = FIDL_HANDLE_PRESENT;
message.out_in_out_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.out_in_out_2.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.out_in_out_2.handle_2 = FIDL_HANDLE_PRESENT;
message.out_in_in_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.out_0.l1_inline.l2_inline.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.out_0.l1_inline.l2_inline.handle_2 = FIDL_HANDLE_PRESENT;
message.out_0.handle_0 = FIDL_HANDLE_PRESENT;
message.out_out_1.handle_1 = FIDL_HANDLE_PRESENT;
message.out_out_out_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.out_out_out_2.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.out_out_out_2.handle_2 = FIDL_HANDLE_PRESENT;
message.out_out_in_out_3.handle_3 = FIDL_HANDLE_PRESENT;
message.out_out_1.l2_inline.l3_inline.handle_3 = FIDL_HANDLE_PRESENT;
message.out_out_1.l2_inline.handle_2 = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0, dummy_handle_1, dummy_handle_2, dummy_handle_3, dummy_handle_4,
dummy_handle_5, dummy_handle_6, dummy_handle_7, dummy_handle_8, dummy_handle_9,
dummy_handle_10, dummy_handle_11, dummy_handle_12, dummy_handle_13, dummy_handle_14,
dummy_handle_15, dummy_handle_16, dummy_handle_17, dummy_handle_18, dummy_handle_19,
dummy_handle_20, dummy_handle_21, dummy_handle_22, dummy_handle_23, dummy_handle_24,
dummy_handle_25, dummy_handle_26, dummy_handle_27, dummy_handle_28, dummy_handle_29,
};
const char* error = nullptr;
auto status = fidl_decode(&nested_struct_ptrs_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
// Note the traversal order!
// 0 inline
// 1 inline
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.handle_1, dummy_handle_0);
// 2 out of line
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_present->l3_present->handle_3,
dummy_handle_1);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_present->l3_inline.handle_3,
dummy_handle_2);
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_present->handle_2, dummy_handle_3);
// 2 inline
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_inline.l3_present->handle_3,
dummy_handle_4);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_inline.l3_inline.handle_3, dummy_handle_5);
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_inline.l2_inline.handle_2, dummy_handle_6);
// handle
EXPECT_EQ(message.inline_struct.l0_inline.handle_0, dummy_handle_7);
// 1 out of line
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->handle_1, dummy_handle_8);
// 2 out of line
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_present->l3_present->handle_3,
dummy_handle_9);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_present->l3_inline.handle_3,
dummy_handle_10);
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_present->handle_2, dummy_handle_11);
// 2 inline
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_inline.l3_present->handle_3,
dummy_handle_12);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_inline.l3_inline.handle_3,
dummy_handle_13);
// handle
EXPECT_EQ(message.inline_struct.l0_inline.l1_present->l2_inline.handle_2, dummy_handle_14);
// 0 out of line
// 1 inline
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.handle_1, dummy_handle_15);
// 2 out of line
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_present->l3_present->handle_3,
dummy_handle_16);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_present->l3_inline.handle_3,
dummy_handle_17);
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_present->handle_2, dummy_handle_18);
// 2 inline
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_inline.l3_present->handle_3,
dummy_handle_19);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_inline.l3_inline.handle_3,
dummy_handle_20);
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_inline.l2_inline.handle_2, dummy_handle_21);
// handle
EXPECT_EQ(message.inline_struct.l0_present->handle_0, dummy_handle_22);
// 1 out of line
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_present->handle_1, dummy_handle_23);
// 2 out of line
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_present->l3_present->handle_3,
dummy_handle_24);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_present->l3_inline.handle_3,
dummy_handle_25);
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_present->handle_2, dummy_handle_26);
// 2 inline
// 3 out of line
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_inline.l3_present->handle_3,
dummy_handle_27);
// 3 inline
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_inline.l3_inline.handle_3,
dummy_handle_28);
// handle
EXPECT_EQ(message.inline_struct.l0_present->l1_present->l2_inline.handle_2, dummy_handle_29);
// Finally, check that all absent members are nullptr.
EXPECT_NULL(message.inline_struct.l0_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_inline.l2_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_inline.l2_inline.l3_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_inline.l2_present->l3_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_present->l2_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_present->l2_inline.l3_absent);
EXPECT_NULL(message.inline_struct.l0_inline.l1_present->l2_present->l3_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_inline.l2_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_inline.l2_inline.l3_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_inline.l2_present->l3_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_present->l2_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_present->l2_inline.l3_absent);
EXPECT_NULL(message.inline_struct.l0_present->l1_present->l2_present->l3_absent);
END_TEST;
}
void SetUpRecursionMessage(recursion_message_layout* message) {
message->inline_struct.inline_union.tag = maybe_recurse_union_kMore;
message->inline_struct.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_0.inline_union.tag = maybe_recurse_union_kMore;
message->depth_0.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_1.inline_union.tag = maybe_recurse_union_kMore;
message->depth_1.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_2.inline_union.tag = maybe_recurse_union_kMore;
message->depth_2.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_3.inline_union.tag = maybe_recurse_union_kMore;
message->depth_3.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_4.inline_union.tag = maybe_recurse_union_kMore;
message->depth_4.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_5.inline_union.tag = maybe_recurse_union_kMore;
message->depth_5.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_6.inline_union.tag = maybe_recurse_union_kMore;
message->depth_6.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_7.inline_union.tag = maybe_recurse_union_kMore;
message->depth_7.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_8.inline_union.tag = maybe_recurse_union_kMore;
message->depth_8.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_9.inline_union.tag = maybe_recurse_union_kMore;
message->depth_9.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_10.inline_union.tag = maybe_recurse_union_kMore;
message->depth_10.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_11.inline_union.tag = maybe_recurse_union_kMore;
message->depth_11.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_12.inline_union.tag = maybe_recurse_union_kMore;
message->depth_12.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_13.inline_union.tag = maybe_recurse_union_kMore;
message->depth_13.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_14.inline_union.tag = maybe_recurse_union_kMore;
message->depth_14.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_15.inline_union.tag = maybe_recurse_union_kMore;
message->depth_15.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_16.inline_union.tag = maybe_recurse_union_kMore;
message->depth_16.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_17.inline_union.tag = maybe_recurse_union_kMore;
message->depth_17.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_18.inline_union.tag = maybe_recurse_union_kMore;
message->depth_18.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_19.inline_union.tag = maybe_recurse_union_kMore;
message->depth_19.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_20.inline_union.tag = maybe_recurse_union_kMore;
message->depth_20.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_21.inline_union.tag = maybe_recurse_union_kMore;
message->depth_21.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_22.inline_union.tag = maybe_recurse_union_kMore;
message->depth_22.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_23.inline_union.tag = maybe_recurse_union_kMore;
message->depth_23.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_24.inline_union.tag = maybe_recurse_union_kMore;
message->depth_24.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_25.inline_union.tag = maybe_recurse_union_kMore;
message->depth_25.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_26.inline_union.tag = maybe_recurse_union_kMore;
message->depth_26.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message->depth_27.inline_union.tag = maybe_recurse_union_kMore;
message->depth_27.inline_union.more =
reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
}
bool decode_nested_struct_recursion_too_deep_error() {
BEGIN_TEST;
recursion_message_layout message;
memset(&message, 0, sizeof(message));
// First we check that FIDL_RECURSION_DEPTH - 1 levels of recursion is OK.
SetUpRecursionMessage(&message);
message.depth_28.inline_union.tag = maybe_recurse_union_kDone;
message.depth_28.inline_union.handle = FIDL_HANDLE_PRESENT;
zx_handle_t handles[] = {
dummy_handle_0,
};
const char* error = nullptr;
auto status = fidl_decode(&recursion_message_type, &message,
// Tell it to ignore everything after we stop recursion.
offsetof(recursion_message_layout, depth_29), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_OK);
EXPECT_NULL(error, error);
// Now add another level of recursion.
SetUpRecursionMessage(&message);
message.depth_28.inline_union.tag = maybe_recurse_union_kMore;
message.depth_28.inline_union.more = reinterpret_cast<recursion_inline_data*>(FIDL_ALLOC_PRESENT);
message.depth_29.inline_union.tag = maybe_recurse_union_kDone;
message.depth_29.inline_union.handle = FIDL_HANDLE_PRESENT;
error = nullptr;
status = fidl_decode(&recursion_message_type, &message, sizeof(message), handles,
ArrayCount(handles), &error);
EXPECT_EQ(status, ZX_ERR_INVALID_ARGS);
EXPECT_NONNULL(error);
const char expected_error_msg[] = "recursion depth exceeded processing struct";
EXPECT_STR_EQ(expected_error_msg, error, "wrong error msg");
END_TEST;
}
BEGIN_TEST_CASE(null_parameters)
RUN_TEST(decode_null_decode_parameters)
END_TEST_CASE(null_parameters)
BEGIN_TEST_CASE(unaligned)
RUN_TEST(decode_single_present_handle_unaligned_error)
RUN_TEST(decode_present_nonnullable_string_unaligned_error)
END_TEST_CASE(unaligned)
BEGIN_TEST_CASE(handles)
RUN_TEST(decode_single_present_handle)
RUN_TEST(decode_single_present_handle_check_trailing_padding)
RUN_TEST(decode_too_many_handles_specified_error)
RUN_TEST(decode_too_many_handles_specified_should_close_handles)
RUN_TEST(decode_too_many_bytes_specified_should_close_handles)
RUN_TEST(decode_multiple_present_handles)
RUN_TEST(decode_single_absent_handle)
RUN_TEST(decode_multiple_absent_handles)
END_TEST_CASE(handles)
BEGIN_TEST_CASE(arrays)
RUN_TEST(decode_array_of_present_handles)
RUN_TEST(decode_array_of_present_handles_error_closes_handles)
RUN_TEST(decode_array_of_nonnullable_handles_some_absent_error)
RUN_TEST(decode_array_of_nullable_handles)
RUN_TEST(decode_array_of_nullable_handles_with_insufficient_handles_error)
RUN_TEST(decode_array_of_array_of_present_handles)
RUN_TEST(decode_out_of_line_array)
END_TEST_CASE(arrays)
BEGIN_TEST_CASE(strings)
RUN_TEST(decode_present_nonnullable_string)
RUN_TEST(decode_multiple_present_nullable_string)
RUN_TEST(decode_present_nullable_string)
RUN_TEST(decode_absent_nonnullable_string_error)
RUN_TEST(decode_absent_nullable_string)
RUN_TEST(decode_present_nonnullable_bounded_string)
RUN_TEST(decode_present_nullable_bounded_string)
RUN_TEST(decode_absent_nonnullable_bounded_string_error)
RUN_TEST(decode_absent_nullable_bounded_string)
RUN_TEST(decode_present_nonnullable_bounded_string_short_error)
RUN_TEST(decode_present_nullable_bounded_string_short_error)
END_TEST_CASE(strings)
BEGIN_TEST_CASE(vectors)
RUN_TEST(decode_vector_with_huge_count)
RUN_TEST(decode_present_nonnullable_vector_of_handles)
RUN_TEST(decode_present_nullable_vector_of_handles)
RUN_TEST(decode_absent_nonnullable_vector_of_handles_error)
RUN_TEST(decode_absent_nullable_vector_of_handles)
RUN_TEST(decode_present_nonnullable_bounded_vector_of_handles)
RUN_TEST(decode_present_nullable_bounded_vector_of_handles)
RUN_TEST(decode_absent_nonnullable_bounded_vector_of_handles)
RUN_TEST(decode_absent_nullable_bounded_vector_of_handles)
RUN_TEST(decode_present_nonnullable_bounded_vector_of_handles_short_error)
RUN_TEST(decode_present_nullable_bounded_vector_of_handles_short_error)
RUN_TEST(decode_present_nonnullable_vector_of_uint32)
RUN_TEST(decode_present_nullable_vector_of_uint32)
RUN_TEST(decode_absent_nonnullable_vector_of_uint32_error)
RUN_TEST(decode_absent_and_empty_nonnullable_vector_of_uint32_error)
RUN_TEST(decode_absent_nullable_vector_of_uint32)
RUN_TEST(decode_absent_nullable_vector_of_uint32_non_zero_length_error)
RUN_TEST(decode_present_nonnullable_bounded_vector_of_uint32)
RUN_TEST(decode_present_nullable_bounded_vector_of_uint32)
RUN_TEST(decode_absent_nonnullable_bounded_vector_of_uint32)
RUN_TEST(decode_absent_nullable_bounded_vector_of_uint32)
RUN_TEST(decode_present_nonnullable_bounded_vector_of_uint32_short_error)
RUN_TEST(decode_present_nullable_bounded_vector_of_uint32_short_error)
END_TEST_CASE(vectors)
BEGIN_TEST_CASE(unions)
RUN_TEST(decode_bad_tagged_union_error)
RUN_TEST(decode_single_membered_present_nonnullable_union)
RUN_TEST(decode_many_membered_present_nonnullable_union)
RUN_TEST(decode_many_membered_present_nonnullable_union_check_padding)
RUN_TEST(decode_single_membered_present_nullable_union)
RUN_TEST(decode_many_membered_present_nullable_union)
RUN_TEST(decode_single_membered_absent_nullable_union)
RUN_TEST(decode_many_membered_absent_nullable_union)
END_TEST_CASE(unions)
BEGIN_TEST_CASE(structs)
RUN_TEST(decode_nested_nonnullable_structs)
RUN_TEST(decode_nested_nonnullable_structs_check_padding)
RUN_TEST(decode_nested_nullable_structs)
RUN_TEST(decode_nested_struct_recursion_too_deep_error)
END_TEST_CASE(structs)
} // namespace
} // namespace fidl