mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-31 01:43:03 +08:00
a9be1b1403
Currently, ProcessMemory is only implemented for Linux and Fuchsia. Implement the interface for Windows as well and re-factor tests to support it, mostly this consists of using a new ScopedGuardedPage class instead of ScopedMmap in the ProcessMemory tests. BUG=crashpad:262 Change-Id: I1b42718972be5ad838d12356d09f764053f09e4f Reviewed-on: https://chromium-review.googlesource.com/c/1278829 Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
// Copyright 2017 The Crashpad Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "util/process/process_memory_range.h"
|
|
|
|
#include <limits>
|
|
|
|
#include "base/logging.h"
|
|
#include "build/build_config.h"
|
|
#include "gtest/gtest.h"
|
|
#include "util/misc/from_pointer_cast.h"
|
|
|
|
#if defined(OS_FUCHSIA)
|
|
#include <lib/zx/process.h>
|
|
|
|
#include "util/process/process_memory_fuchsia.h"
|
|
#elif defined(OS_WIN)
|
|
#include "util/process/process_memory_win.h"
|
|
#else
|
|
#include <unistd.h>
|
|
|
|
#include "util/process/process_memory_linux.h"
|
|
#endif
|
|
|
|
namespace crashpad {
|
|
namespace test {
|
|
namespace {
|
|
|
|
struct TestObject {
|
|
char string1[16];
|
|
char string2[16];
|
|
} kTestObject = {"string1", "string2"};
|
|
|
|
TEST(ProcessMemoryRange, Basic) {
|
|
#if defined(ARCH_CPU_64_BITS)
|
|
constexpr bool is_64_bit = true;
|
|
#else
|
|
constexpr bool is_64_bit = false;
|
|
#endif // ARCH_CPU_64_BITS
|
|
|
|
#if defined(OS_FUCHSIA)
|
|
ProcessMemoryFuchsia memory;
|
|
ASSERT_TRUE(memory.Initialize(*zx::process::self()));
|
|
#elif defined(OS_WIN)
|
|
ProcessMemoryWin memory;
|
|
ASSERT_TRUE(memory.Initialize(GetCurrentProcess()));
|
|
#elif defined(OS_LINUX)
|
|
ProcessMemoryLinux memory;
|
|
ASSERT_TRUE(memory.Initialize(getpid()));
|
|
#endif // OS_FUCHSIA
|
|
|
|
ProcessMemoryRange range;
|
|
ASSERT_TRUE(range.Initialize(&memory, is_64_bit));
|
|
EXPECT_EQ(range.Is64Bit(), is_64_bit);
|
|
|
|
// Both strings are accessible within the object's range.
|
|
auto object_addr = FromPointerCast<VMAddress>(&kTestObject);
|
|
EXPECT_TRUE(range.RestrictRange(object_addr, sizeof(kTestObject)));
|
|
|
|
TestObject object;
|
|
ASSERT_TRUE(range.Read(object_addr, sizeof(object), &object));
|
|
EXPECT_EQ(memcmp(&object, &kTestObject, sizeof(object)), 0);
|
|
|
|
std::string string;
|
|
auto string1_addr = FromPointerCast<VMAddress>(kTestObject.string1);
|
|
auto string2_addr = FromPointerCast<VMAddress>(kTestObject.string2);
|
|
ASSERT_TRUE(range.ReadCStringSizeLimited(
|
|
string1_addr, arraysize(kTestObject.string1), &string));
|
|
EXPECT_STREQ(string.c_str(), kTestObject.string1);
|
|
|
|
ASSERT_TRUE(range.ReadCStringSizeLimited(
|
|
string2_addr, arraysize(kTestObject.string2), &string));
|
|
EXPECT_STREQ(string.c_str(), kTestObject.string2);
|
|
|
|
// Limit the range to remove access to string2.
|
|
ProcessMemoryRange range2;
|
|
ASSERT_TRUE(range2.Initialize(range));
|
|
ASSERT_TRUE(
|
|
range2.RestrictRange(string1_addr, arraysize(kTestObject.string1)));
|
|
EXPECT_TRUE(range2.ReadCStringSizeLimited(
|
|
string1_addr, arraysize(kTestObject.string1), &string));
|
|
EXPECT_FALSE(range2.ReadCStringSizeLimited(
|
|
string2_addr, arraysize(kTestObject.string2), &string));
|
|
EXPECT_FALSE(range2.Read(object_addr, sizeof(object), &object));
|
|
|
|
// String reads fail if the NUL terminator is outside the range.
|
|
ASSERT_TRUE(range2.RestrictRange(string1_addr, strlen(kTestObject.string1)));
|
|
EXPECT_FALSE(range2.ReadCStringSizeLimited(
|
|
string1_addr, arraysize(kTestObject.string1), &string));
|
|
|
|
// New range outside the old range.
|
|
EXPECT_FALSE(range2.RestrictRange(string1_addr - 1, 1));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace test
|
|
} // namespace crashpad
|