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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/processor/exploitability_unittest.cc')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/processor/exploitability_unittest.cc | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/processor/exploitability_unittest.cc b/toolkit/crashreporter/google-breakpad/src/processor/exploitability_unittest.cc deleted file mode 100644 index 528ee5f21..000000000 --- a/toolkit/crashreporter/google-breakpad/src/processor/exploitability_unittest.cc +++ /dev/null @@ -1,306 +0,0 @@ -// Copyright (c) 2010, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE - -#include <stdlib.h> -#include <unistd.h> - -#include <string> - -#include "breakpad_googletest_includes.h" -#include "common/using_std_string.h" -#include "google_breakpad/processor/basic_source_line_resolver.h" -#include "google_breakpad/processor/minidump_processor.h" -#include "google_breakpad/processor/process_state.h" -#ifndef _WIN32 -#include "processor/exploitability_linux.h" -#endif // _WIN32 -#include "processor/simple_symbol_supplier.h" - -#ifndef _WIN32 -namespace google_breakpad { - -class ExploitabilityLinuxTest : public ExploitabilityLinux { - public: - using ExploitabilityLinux::CalculateAddress; - using ExploitabilityLinux::DisassembleBytes; - using ExploitabilityLinux::GetObjdumpInstructionLine; - using ExploitabilityLinux::TokenizeObjdumpInstruction; -}; - -class ExploitabilityLinuxTestMinidumpContext : public MinidumpContext { - public: - explicit ExploitabilityLinuxTestMinidumpContext( - const MDRawContextAMD64& context) : MinidumpContext(NULL) { - valid_ = true; - SetContextAMD64(new MDRawContextAMD64(context)); - SetContextFlags(MD_CONTEXT_AMD64); - } -}; - -} // namespace google_breakpad -#endif // _WIN32 - -namespace { - -using google_breakpad::BasicSourceLineResolver; -#ifndef _WIN32 -using google_breakpad::ExploitabilityLinuxTest; -using google_breakpad::ExploitabilityLinuxTestMinidumpContext; -#endif // _WIN32 -using google_breakpad::MinidumpProcessor; -using google_breakpad::ProcessState; -using google_breakpad::SimpleSymbolSupplier; - -string TestDataDir() { - return string(getenv("srcdir") ? getenv("srcdir") : ".") + - "/src/processor/testdata"; -} - -// Find the given dump file in <srcdir>/src/processor/testdata, process it, -// and get the exploitability rating. Returns EXPLOITABILITY_ERR_PROCESSING -// if the crash dump can't be processed. -google_breakpad::ExploitabilityRating -ExploitabilityFor(const string& filename) { - SimpleSymbolSupplier supplier(TestDataDir() + "/symbols"); - BasicSourceLineResolver resolver; - MinidumpProcessor processor(&supplier, &resolver, true); - processor.set_enable_objdump(true); - ProcessState state; - - string minidump_file = TestDataDir() + "/" + filename; - - if (processor.Process(minidump_file, &state) != - google_breakpad::PROCESS_OK) { - return google_breakpad::EXPLOITABILITY_ERR_PROCESSING; - } - - return state.exploitability(); -} - -TEST(ExploitabilityTest, TestWindowsEngine) { - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av_block_write.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av_clobber_write.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av_conditional.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av_then_jmp.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_read_av_xchg_write.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_write_av.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("ascii_write_av_arg_to_call.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE, - ExploitabilityFor("null_read_av.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE, - ExploitabilityFor("null_write_av.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE, - ExploitabilityFor("stack_exhaustion.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("exec_av_on_stack.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_MEDIUM, - ExploitabilityFor("write_av_non_null.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_LOW, - ExploitabilityFor("read_av_non_null.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_LOW, - ExploitabilityFor("read_av_clobber_write.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_LOW, - ExploitabilityFor("read_av_conditional.dmp")); -} - -TEST(ExploitabilityTest, TestLinuxEngine) { - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_null_read_av.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_overflow.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_stacksmash.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE, - ExploitabilityFor("linux_divide_by_zero.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_null_dereference.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_jmp_to_0.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_outside_module.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_NONE, - ExploitabilityFor("linux_raise_sigabrt.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_inside_module_exe_region1.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_inside_module_exe_region2.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_stack_pointer_in_stack.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_stack_pointer_in_stack_alt_name.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_stack_pointer_in_module.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_executable_stack.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_executable_heap.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_jmp_to_module_not_exe_region.dmp")); -#ifndef _WIN32 - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_write_to_nonwritable_module.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_write_to_nonwritable_region_math.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_write_to_outside_module.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_HIGH, - ExploitabilityFor("linux_write_to_outside_module_via_math.dmp")); - ASSERT_EQ(google_breakpad::EXPLOITABILITY_INTERESTING, - ExploitabilityFor("linux_write_to_under_4k.dmp")); -#endif // _WIN32 -} - -#ifndef _WIN32 -TEST(ExploitabilityLinuxUtilsTest, DisassembleBytesTest) { - ASSERT_FALSE(ExploitabilityLinuxTest::DisassembleBytes("", NULL, 5, NULL)); - uint8_t bytes[6] = {0xc7, 0x0, 0x5, 0x0, 0x0, 0x0}; - char buffer[1024] = {0}; - ASSERT_TRUE(ExploitabilityLinuxTest::DisassembleBytes("i386:x86-64", - bytes, - 1024, - buffer)); - std::stringstream objdump_stream; - objdump_stream.str(string(buffer)); - string line = ""; - while (line.find("<.data>") == string::npos) - getline(objdump_stream, line); - getline(objdump_stream, line); - ASSERT_EQ(line, " 0:\tc7 00 05 00 00 00 \tmov DWORD PTR [rax],0x5"); -} - -TEST(ExploitabilityLinuxUtilsTest, GetObjdumpInstructionLine) { - string disassebly = - "\n" - "/tmp/breakpad_mem_region-raw_bytes-tMmMo0: file format binary\n" - "// Trying to confuse the parser 0:\n" - "\n" - "Disassembly of section .data:\n" - "\n" - "0000000000000000 <.data>:\n" - " 0:\tc7 00 01 00 00 00 \tmov DWORD PTR [rax],0x1\n" - " 6:\t5d \tpop rbp\n" - " 7:\tc3 \tret \n" - " 8:\t55 \tpush rbp\n" - " 9:\t48 89 e5 \tmov rbp,rsp\n" - " c:\t53 \tpush rbx\n" - " d:\t48 \trex.W\n" - " e:\t81 \t.byte 0x81\n"; - string line; - EXPECT_TRUE(ExploitabilityLinuxTest::GetObjdumpInstructionLine( - disassebly.c_str(), &line)); - EXPECT_EQ(" 0:\tc7 00 01 00 00 00 \tmov DWORD PTR [rax],0x1", line); - - // There is no "0:" after "<.data>:". Expected to return false. - disassebly = - "\n" - "/tmp/breakpad_mem_region-raw_bytes-tMmMo0: file format binary\n" - "// Trying to confuse the parser 0:\n" - "\n" - "Disassembly of section .data:\n" - "\n" - " 0:\tc7 00 01 00 00 00 \tmov DWORD PTR [rax],0x1\n" - " 6:\t5d \tpop rbp\n" - " 7:\tc3 \tret \n" - " 8:\t55 \tpush rbp\n" - " 9:\t48 89 e5 \tmov rbp,rsp\n" - " d:\t48 \trex.W\n" - "0000000000000000 <.data>:\n" - " c:\t53 \tpush rbx\n"; - EXPECT_FALSE(ExploitabilityLinuxTest::GetObjdumpInstructionLine( - disassebly.c_str(), &line)); -} - -TEST(ExploitabilityLinuxUtilsTest, TokenizeObjdumpInstructionTest) { - ASSERT_FALSE(ExploitabilityLinuxTest::TokenizeObjdumpInstruction("", - NULL, - NULL, - NULL)); - string line = "0: c7 00 05 00 00 00 mov DWORD PTR [rax],0x5"; - string operation = ""; - string dest = ""; - string src = ""; - ASSERT_TRUE(ExploitabilityLinuxTest::TokenizeObjdumpInstruction(line, - &operation, - &dest, - &src)); - ASSERT_EQ(operation, "mov"); - ASSERT_EQ(dest, "[rax]"); - ASSERT_EQ(src, "0x5"); - line = "0: c3 ret"; - ASSERT_TRUE(ExploitabilityLinuxTest::TokenizeObjdumpInstruction(line, - &operation, - &dest, - &src)); - ASSERT_EQ(operation, "ret"); - ASSERT_EQ(dest, ""); - ASSERT_EQ(src, ""); - line = "0: 5f pop rdi"; - ASSERT_TRUE(ExploitabilityLinuxTest::TokenizeObjdumpInstruction(line, - &operation, - &dest, - &src)); - ASSERT_EQ(operation, "pop"); - ASSERT_EQ(dest, "rdi"); - ASSERT_EQ(src, ""); -} - -TEST(ExploitabilityLinuxUtilsTest, CalculateAddressTest) { - MDRawContextAMD64 raw_context; - raw_context.rdx = 12345; - ExploitabilityLinuxTestMinidumpContext context(raw_context); - ASSERT_EQ(context.GetContextAMD64()->rdx, 12345U); - ASSERT_FALSE(ExploitabilityLinuxTest::CalculateAddress("", context, NULL)); - uint64_t write_address = 0; - ASSERT_TRUE(ExploitabilityLinuxTest::CalculateAddress("rdx-0x4D2", - context, - &write_address)); - ASSERT_EQ(write_address, 11111U); - ASSERT_TRUE(ExploitabilityLinuxTest::CalculateAddress("rdx+0x4D2", - context, - &write_address)); - ASSERT_EQ(write_address, 13579U); - ASSERT_FALSE(ExploitabilityLinuxTest::CalculateAddress("rdx+rax", - context, - &write_address)); - ASSERT_FALSE(ExploitabilityLinuxTest::CalculateAddress("0x3482+0x4D2", - context, - &write_address)); -} -#endif // _WIN32 - -} // namespace |