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Tests for jump hook address

This commit is contained in:
Quentin DUCASSE 2022-05-04 16:51:43 +02:00
parent 55b2950cac
commit a3ed8bbce5
1 changed files with 87 additions and 0 deletions
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87
tests/unit/test_x86.c
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@ -981,6 +981,91 @@ static void test_x86_nested_uc_emu_start_exits(void)
OK(uc_close(uc));
}
static void test_x86_correct_address_in_small_jump_hook_callback(uc_engine *uc, int type, uint64_t address, int size, int64_t value, void *user_data)
{
// Check registers
uint64_t r_rax = 0x0;
uint64_t r_rip = 0x0;
OK(uc_reg_read(uc, UC_X86_REG_RAX, &r_rax));
OK(uc_reg_read(uc, UC_X86_REG_RIP, &r_rip));
TEST_CHECK(r_rax == 0x7F00);
TEST_CHECK(r_rip == 0x7F00);
// Check address
// printf("%lx\n", address);
TEST_CHECK(address == 0x7F00);
}
static void test_x86_correct_address_in_small_jump_hook(void)
{
uc_engine *uc;
// movabs $0x7FFFFFFFFEFBEC9C, %rax
// jmp *%rax
char code[] = "\x48\xb8\x00\x7F\x00\x00\x00\x00\x00\x00\xff\xe0";
uint64_t r_rax = 0x0;
uint64_t r_rip = 0x0;
uc_hook hook;
uc_common_setup(&uc, UC_ARCH_X86, UC_MODE_64, code, sizeof(code) - 1);
OK(uc_hook_add(uc, &hook, UC_HOOK_MEM_UNMAPPED, test_x86_correct_address_in_small_jump_hook_callback, NULL, 1, 0));
uc_assert_err(
UC_ERR_FETCH_UNMAPPED,
uc_emu_start(uc, code_start, code_start + sizeof(code) - 1, 0, 0));
OK(uc_reg_read(uc, UC_X86_REG_RAX, &r_rax));
OK(uc_reg_read(uc, UC_X86_REG_RIP, &r_rip));
TEST_CHECK(r_rax == 0x7F00);
TEST_CHECK(r_rip == 0x7F00);
OK(uc_close(uc));
}
static void test_x86_correct_address_in_long_jump_hook_callback(uc_engine *uc, int type, uint64_t address, int size, int64_t value, void *user_data)
{
// Check registers
uint64_t r_rax = 0x0;
uint64_t r_rip = 0x0;
OK(uc_reg_read(uc, UC_X86_REG_RAX, &r_rax));
OK(uc_reg_read(uc, UC_X86_REG_RIP, &r_rip));
TEST_CHECK(r_rax == 0x7FFFFFFFFFFFFF00);
TEST_CHECK(r_rip == 0x7FFFFFFFFFFFFF00);
// Check address
// printf("%lx\n", address);
TEST_CHECK(address == 0x7FFFFFFFFFFFFF00);
}
static void test_x86_correct_address_in_long_jump_hook(void)
{
uc_engine *uc;
// movabs $0x7FFFFFFFFEFBEC9C, %rax
// jmp *%rax
char code[] = "\x48\xb8\x00\xff\xff\xff\xff\xff\xff\x7f\xff\xe0";
uint64_t r_rax = 0x0;
uint64_t r_rip = 0x0;
uc_hook hook;
uc_common_setup(&uc, UC_ARCH_X86, UC_MODE_64, code, sizeof(code) - 1);
OK(uc_hook_add(uc, &hook, UC_HOOK_MEM_UNMAPPED, test_x86_correct_address_in_long_jump_hook_callback, NULL, 1, 0));
uc_assert_err(
UC_ERR_FETCH_UNMAPPED,
uc_emu_start(uc, code_start, code_start + sizeof(code) - 1, 0, 0));
OK(uc_reg_read(uc, UC_X86_REG_RAX, &r_rax));
OK(uc_reg_read(uc, UC_X86_REG_RIP, &r_rip));
TEST_CHECK(r_rax == 0x7FFFFFFFFFFFFF00);
TEST_CHECK(r_rip == 0x7FFFFFFFFFFFFF00);
OK(uc_close(uc));
}
TEST_LIST = {
{"test_x86_in", test_x86_in},
{"test_x86_out", test_x86_out},
@ -1013,4 +1098,6 @@ TEST_LIST = {
{"test_x86_64_nested_emu_start_error", test_x86_64_nested_emu_start_error},
{"test_x86_eflags_reserved_bit", test_x86_eflags_reserved_bit},
{"test_x86_nested_uc_emu_start_exits", test_x86_nested_uc_emu_start_exits},
{"test_x86_correct_address_in_small_jump_hook", test_x86_correct_address_in_small_jump_hook},
{"test_x86_correct_address_in_long_jump_hook", test_x86_correct_address_in_long_jump_hook},
{NULL, NULL}};