mirror of
https://github.com/yuzu-emu/unicorn.git
synced 2025-10-26 06:08:11 +00:00
828 lines
25 KiB
C
828 lines
25 KiB
C
#include "unicorn_test.h"
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#include "unicorn/unicorn.h"
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#define OK(x) uc_assert_success(x)
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/* Called before every test to set up a new instance */
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static int setup32(void **state)
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{
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uc_engine *uc;
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OK(uc_open(UC_ARCH_X86, UC_MODE_32, &uc));
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*state = uc;
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return 0;
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}
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/* Called after every test to clean up */
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static int teardown(void **state)
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{
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uc_engine *uc = *state;
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OK(uc_close(uc));
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*state = NULL;
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return 0;
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}
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/******************************************************************************/
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struct bb {
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uint64_t addr;
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size_t size;
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};
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struct bbtest {
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const struct bb *blocks;
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unsigned int blocknum;
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};
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static void test_basic_blocks_hook(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
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{
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struct bbtest *bbtest = user_data;
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const struct bb *bb = &bbtest->blocks[bbtest->blocknum++];
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assert_int_equal(address, bb->addr);
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assert_int_equal((size_t)size, bb->size);
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}
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static void test_basic_blocks(void **state)
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{
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uc_engine *uc = *state;
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uc_hook trace1;
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#define BASEADDR 0x1000000
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uint64_t address = BASEADDR;
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const uint8_t code[] = {
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0x33, 0xC0, // xor eax, eax
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0x90, // nop
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0x90, // nop
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0xEB, 0x00, // jmp $+2
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0x90, // nop
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0x90, // nop
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0x90, // nop
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};
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static const struct bb blocks[] = {
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{BASEADDR, 6},
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{BASEADDR+ 6, 3},
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};
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struct bbtest bbtest = {
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.blocks = blocks,
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.blocknum = 0,
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};
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#undef BASEADDR
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// map 2MB memory for this emulation
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OK(uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL));
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// write machine code to be emulated to memory
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OK(uc_mem_write(uc, address, code, sizeof(code)));
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// trace all basic blocks
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OK(uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, test_basic_blocks_hook, &bbtest, 1, 0));
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OK(uc_emu_start(uc, address, address+sizeof(code), 0, 0));
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}
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/******************************************************************************/
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// callback for tracing basic blocks
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static void hook_block(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
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{
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//printf(">>> Tracing basic block at 0x%"PRIx64 ", block size = 0x%x\n", address, size);
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}
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// callback for tracing instruction
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static void hook_code(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
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{
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//int eflags;
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//printf(">>> Tracing instruction at 0x%"PRIx64 ", instruction size = 0x%x\n", address, size);
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//uc_reg_read(uc, UC_X86_REG_EFLAGS, &eflags);
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//printf(">>> --- EFLAGS is 0x%x\n", eflags);
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// Uncomment below code to stop the emulation using uc_emu_stop()
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// if (address == 0x1000009)
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// uc_emu_stop(uc);
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}
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static void test_i386(void **state)
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{
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uc_engine *uc;
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uc_err err;
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uint32_t tmp;
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uc_hook trace1, trace2;
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const uint8_t code[] = "\x41\x4a\x66\x0f\xef\xc1"; // INC ecx; DEC edx; PXOR xmm0, xmm1
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const uint64_t address = 0x1000000;
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int r_ecx = 0x1234; // ECX register
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int r_edx = 0x7890; // EDX register
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// XMM0 and XMM1 registers, low qword then high qword
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uint64_t r_xmm0[2] = {0x08090a0b0c0d0e0f, 0x0001020304050607};
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uint64_t r_xmm1[2] = {0x8090a0b0c0d0e0f0, 0x0010203040506070};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code)-1);
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uc_assert_success(err);
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// initialize machine registers
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err = uc_reg_write(uc, UC_X86_REG_ECX, &r_ecx);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_EDX, &r_edx);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_XMM0, &r_xmm0);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_XMM1, &r_xmm1);
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uc_assert_success(err);
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// tracing all basic blocks with customized callback
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err = uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, 1, 0);
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uc_assert_success(err);
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// tracing all instruction by having @begin > @end
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err = uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, 1, 0);
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code)-1, 0, 0);
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uc_assert_success(err);
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// now print out some registers
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//printf(">>> Emulation done. Below is the CPU context\n");
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uc_reg_read(uc, UC_X86_REG_ECX, &r_ecx);
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uc_reg_read(uc, UC_X86_REG_EDX, &r_edx);
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uc_reg_read(uc, UC_X86_REG_XMM0, &r_xmm0);
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assert_int_equal(r_ecx, 0x1235);
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assert_int_equal(r_edx, 0x788F);
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uint64_t r_xmm0_expected[2] = {0x8899aabbccddeeff, 0x0011223344556677};
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assert_memory_equal(r_xmm0, r_xmm0_expected, sizeof(r_xmm0));
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// read from memory
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err = uc_mem_read(uc, address, (uint8_t *)&tmp, 4);
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uc_assert_success(err);
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//printf(">>> Read 4 bytes from [0x%"PRIX64"] = 0x%x\n", address, tmp);
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uc_close(uc);
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}
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static void test_i386_jump(void **state)
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{
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uc_engine *uc;
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uc_err err;
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uc_hook trace1, trace2;
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const uint8_t code[] = "\xeb\x02\x90\x90\x90\x90\x90\x90"; // jmp 4; nop; nop; nop; nop; nop; nop
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const uint64_t address = 0x1000000;
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code)-1);
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uc_assert_success(err);
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// tracing 1 basic block with customized callback
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err = uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, address, address);
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uc_assert_success(err);
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// tracing 1 instruction at address
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err = uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, address, address);
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code)-1, 0, 0);
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uc_assert_success(err);
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err = uc_close(uc);
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uc_assert_success(err);
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}
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/******************************************************************************/
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// callback for IN instruction (X86).
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// this returns the data read from the port
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static uint32_t hook_in(uc_engine *uc, uint32_t port, int size, void *user_data)
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{
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uint32_t eip;
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uc_reg_read(uc, UC_X86_REG_EIP, &eip);
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//printf("--- reading from port 0x%x, size: %u, address: 0x%x\n", port, size, eip);
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switch(size) {
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default:
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return 0; // should never reach this
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case 1:
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// read 1 byte to AL
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return 0xf1;
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case 2:
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// read 2 byte to AX
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return 0xf2;
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case 4:
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// read 4 byte to EAX
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return 0xf4;
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}
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}
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// callback for OUT instruction (X86).
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static void hook_out(uc_engine *uc, uint32_t port, int size, uint32_t value, void *user_data)
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{
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uint32_t tmp;
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uint32_t eip;
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uc_reg_read(uc, UC_X86_REG_EIP, &eip);
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//printf("--- writing to port 0x%x, size: %u, value: 0x%x, address: 0x%x\n", port, size, value, eip);
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// TODO: confirm that value is indeed the value of AL/AX/EAX
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switch(size) {
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default:
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return; // should never reach this
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case 1:
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uc_reg_read(uc, UC_X86_REG_AL, &tmp);
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break;
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case 2:
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uc_reg_read(uc, UC_X86_REG_AX, &tmp);
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break;
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case 4:
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uc_reg_read(uc, UC_X86_REG_EAX, &tmp);
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break;
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}
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//printf("--- register value = 0x%x\n", tmp);
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}
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static void test_i386_inout(void **state)
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{
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uc_engine *uc;
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uc_err err;
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uc_hook trace1, trace2, trace3, trace4;
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int r_eax = 0x1234; // EAX register
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int r_ecx = 0x6789; // ECX register
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static const uint64_t address = 0x1000000;
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static const uint8_t code[] = {
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0x41, // inc ecx
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0xE4, 0x3F, // in al, 0x3F
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0x4A, // dec edx
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0xE6, 0x46, // out 0x46, al
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0x43, // inc ebx
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};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code));
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uc_assert_success(err);
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// initialize machine registers
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err = uc_reg_write(uc, UC_X86_REG_EAX, &r_eax);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_ECX, &r_ecx);
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uc_assert_success(err);
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// tracing all basic blocks with customized callback
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err = uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, 1, 0);
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uc_assert_success(err);
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// tracing all instructions
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err = uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, 1, 0);
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uc_assert_success(err);
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// uc IN instruction
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err = uc_hook_add(uc, &trace3, UC_HOOK_INSN, hook_in, NULL, 1, 0, UC_X86_INS_IN);
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uc_assert_success(err);
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// uc OUT instruction
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err = uc_hook_add(uc, &trace4, UC_HOOK_INSN, hook_out, NULL, 1, 0, UC_X86_INS_OUT);
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code), 0, 0);
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uc_assert_success(err);
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uc_reg_read(uc, UC_X86_REG_EAX, &r_eax);
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uc_reg_read(uc, UC_X86_REG_ECX, &r_ecx);
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//printf(">>> EAX = 0x%x\n", r_eax);
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//printf(">>> ECX = 0x%x\n", r_ecx);
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// TODO: Assert on the register values here
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uc_assert_success(uc_close(uc));
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}
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/******************************************************************************/
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// emulate code that loop forever
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static void test_i386_loop(void **state)
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{
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uc_engine *uc;
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uc_err err;
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int r_ecx = 0x1234; // ECX register
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int r_edx = 0x7890; // EDX register
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static const uint64_t address = 0x1000000;
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static const uint8_t code[] = {
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0x41, // inc ecx
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0x4a, // dec edx
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0xEB, 0xFE, // jmp $
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};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code));
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uc_assert_success(err);
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// initialize machine registers
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err = uc_reg_write(uc, UC_X86_REG_ECX, &r_ecx);
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uc_assert_success(err);
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err = uc_reg_write(uc, UC_X86_REG_EDX, &r_edx);
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uc_assert_success(err);
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// emulate machine code in 2 seconds, so we can quit even
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// if the code loops
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err = uc_emu_start(uc, address, address+sizeof(code), 2*UC_SECOND_SCALE, 0);
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uc_assert_success(err);
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// verify register values
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_ECX, &r_ecx));
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uc_assert_success(uc_reg_read(uc, UC_X86_REG_EDX, &r_edx));
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assert_int_equal(r_ecx, 0x1235);
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assert_int_equal(r_edx, 0x788F);
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uc_assert_success(uc_close(uc));
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}
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/******************************************************************************/
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// emulate code that reads invalid memory
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static void test_i386_invalid_mem_read(void **state)
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{
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uc_engine *uc;
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uc_err err;
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static const uint64_t address = 0x1000000;
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static const uint8_t code[] = {
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0x8b, 0x0D, 0xAA, 0xAA, 0xAA, 0xAA, // mov ecx, [0xAAAAAAAA]
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};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code));
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code), 0, 0);
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uc_assert_err(UC_ERR_READ_UNMAPPED, err);
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uc_assert_success(uc_close(uc));
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}
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// emulate code that writes invalid memory
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static void test_i386_invalid_mem_write(void **state)
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{
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uc_engine *uc;
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uc_err err;
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static const uint64_t address = 0x1000000;
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static const uint8_t code[] = {
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0x89, 0x0D, 0xAA, 0xAA, 0xAA, 0xAA, // mov [0xAAAAAAAA], ecx
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};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code));
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code), 0, 0);
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uc_assert_err(UC_ERR_WRITE_UNMAPPED, err);
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uc_assert_success(uc_close(uc));
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}
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// emulate code that jumps to invalid memory
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static void test_i386_jump_invalid(void **state)
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{
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uc_engine *uc;
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uc_err err;
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static const uint64_t address = 0x1000000;
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static const uint8_t code[] = {
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0xE9, 0xE9, 0xEE, 0xEE, 0xEE, // jmp 0xEEEEEEEE
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};
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// Initialize emulator in X86-32bit mode
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err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
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uc_assert_success(err);
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// map 2MB memory for this emulation
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err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
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uc_assert_success(err);
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// write machine code to be emulated to memory
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err = uc_mem_write(uc, address, code, sizeof(code));
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uc_assert_success(err);
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// emulate machine code in infinite time
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err = uc_emu_start(uc, address, address+sizeof(code), 0, 0);
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uc_assert_err(UC_ERR_FETCH_UNMAPPED, err);
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uc_assert_success(uc_close(uc));
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}
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/******************************************************************************/
|
|
|
|
static void hook_mem64(uc_engine *uc, uc_mem_type type,
|
|
uint64_t address, int size, int64_t value, void *user_data)
|
|
{
|
|
switch(type) {
|
|
default: break;
|
|
case UC_MEM_READ:
|
|
//printf(">>> Memory is being READ at 0x%"PRIx64 ", data size = %u\n",
|
|
// address, size);
|
|
break;
|
|
case UC_MEM_WRITE:
|
|
//printf(">>> Memory is being WRITE at 0x%"PRIx64 ", data size = %u, data value = 0x%"PRIx64 "\n",
|
|
// address, size, value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// callback for tracing instruction
|
|
static void hook_code64(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
|
|
{
|
|
uint64_t rip;
|
|
|
|
uc_reg_read(uc, UC_X86_REG_RIP, &rip);
|
|
//printf(">>> Tracing instruction at 0x%"PRIx64 ", instruction size = 0x%x\n", address, size);
|
|
//printf(">>> RIP is 0x%"PRIx64 "\n", rip);
|
|
|
|
// Uncomment below code to stop the emulation using uc_emu_stop()
|
|
// if (address == 0x1000009)
|
|
// uc_emu_stop(uc);
|
|
}
|
|
|
|
static void test_x86_64(void **state)
|
|
{
|
|
uc_engine *uc;
|
|
uc_err err;
|
|
uc_hook trace1, trace2, trace3, trace4;
|
|
|
|
static const uint64_t address = 0x1000000;
|
|
static const uint8_t code[] = "\x41\xBC\x3B\xB0\x28\x2A\x49\x0F\xC9\x90\x4D\x0F\xAD\xCF\x49\x87\xFD\x90\x48\x81\xD2\x8A\xCE\x77\x35\x48\xF7\xD9\x4D\x29\xF4\x49\x81\xC9\xF6\x8A\xC6\x53\x4D\x87\xED\x48\x0F\xAD\xD2\x49\xF7\xD4\x48\xF7\xE1\x4D\x19\xC5\x4D\x89\xC5\x48\xF7\xD6\x41\xB8\x4F\x8D\x6B\x59\x4D\x87\xD0\x68\x6A\x1E\x09\x3C\x59";
|
|
|
|
int64_t rax = 0x71f3029efd49d41d;
|
|
int64_t rbx = 0xd87b45277f133ddb;
|
|
int64_t rcx = 0xab40d1ffd8afc461;
|
|
int64_t rdx = 0x919317b4a733f01;
|
|
int64_t rsi = 0x4c24e753a17ea358;
|
|
int64_t rdi = 0xe509a57d2571ce96;
|
|
int64_t r8 = 0xea5b108cc2b9ab1f;
|
|
int64_t r9 = 0x19ec097c8eb618c1;
|
|
int64_t r10 = 0xec45774f00c5f682;
|
|
int64_t r11 = 0xe17e9dbec8c074aa;
|
|
int64_t r12 = 0x80f86a8dc0f6d457;
|
|
int64_t r13 = 0x48288ca5671c5492;
|
|
int64_t r14 = 0x595f72f6e4017f6e;
|
|
int64_t r15 = 0x1efd97aea331cccc;
|
|
|
|
int64_t rsp = address + 0x200000;
|
|
|
|
|
|
// Initialize emulator in X86-64bit mode
|
|
err = uc_open(UC_ARCH_X86, UC_MODE_64, &uc);
|
|
uc_assert_success(err);
|
|
|
|
// map 2MB memory for this emulation
|
|
err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
|
|
uc_assert_success(err);
|
|
|
|
// write machine code to be emulated to memory
|
|
err = uc_mem_write(uc, address, code, sizeof(code) - 1);
|
|
uc_assert_success(err);
|
|
|
|
// initialize machine registers
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RSP, &rsp));
|
|
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RAX, &rax));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RBX, &rbx));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RCX, &rcx));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RDX, &rdx));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RSI, &rsi));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RDI, &rdi));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R8, &r8));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R9, &r9));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R10, &r10));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R11, &r11));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R12, &r12));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R13, &r13));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R14, &r14));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_R15, &r15));
|
|
|
|
// tracing all basic blocks with customized callback
|
|
err = uc_hook_add(uc, &trace1, UC_HOOK_BLOCK, hook_block, NULL, 1, 0);
|
|
uc_assert_success(err);
|
|
|
|
// tracing all instructions in the range [address, address+20]
|
|
err = uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code64, NULL, address, address+20);
|
|
uc_assert_success(err);
|
|
|
|
// tracing all memory WRITE access (with @begin > @end)
|
|
err = uc_hook_add(uc, &trace3, UC_HOOK_MEM_WRITE, hook_mem64, NULL, 1, 0);
|
|
uc_assert_success(err);
|
|
|
|
// tracing all memory READ access (with @begin > @end)
|
|
err = uc_hook_add(uc, &trace4, UC_HOOK_MEM_READ, hook_mem64, NULL, 1, 0);
|
|
uc_assert_success(err);
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
err = uc_emu_start(uc, address, address+sizeof(code) - 1, 0, 0);
|
|
uc_assert_success(err);
|
|
|
|
// Read registers
|
|
uc_reg_read(uc, UC_X86_REG_RAX, &rax);
|
|
uc_reg_read(uc, UC_X86_REG_RBX, &rbx);
|
|
uc_reg_read(uc, UC_X86_REG_RCX, &rcx);
|
|
uc_reg_read(uc, UC_X86_REG_RDX, &rdx);
|
|
uc_reg_read(uc, UC_X86_REG_RSI, &rsi);
|
|
uc_reg_read(uc, UC_X86_REG_RDI, &rdi);
|
|
uc_reg_read(uc, UC_X86_REG_R8, &r8);
|
|
uc_reg_read(uc, UC_X86_REG_R9, &r9);
|
|
uc_reg_read(uc, UC_X86_REG_R10, &r10);
|
|
uc_reg_read(uc, UC_X86_REG_R11, &r11);
|
|
uc_reg_read(uc, UC_X86_REG_R12, &r12);
|
|
uc_reg_read(uc, UC_X86_REG_R13, &r13);
|
|
uc_reg_read(uc, UC_X86_REG_R14, &r14);
|
|
uc_reg_read(uc, UC_X86_REG_R15, &r15);
|
|
|
|
#if 0
|
|
printf(">>> RAX = 0x%" PRIx64 "\n", rax);
|
|
printf(">>> RBX = 0x%" PRIx64 "\n", rbx);
|
|
printf(">>> RCX = 0x%" PRIx64 "\n", rcx);
|
|
printf(">>> RDX = 0x%" PRIx64 "\n", rdx);
|
|
printf(">>> RSI = 0x%" PRIx64 "\n", rsi);
|
|
printf(">>> RDI = 0x%" PRIx64 "\n", rdi);
|
|
printf(">>> R8 = 0x%" PRIx64 "\n", r8);
|
|
printf(">>> R9 = 0x%" PRIx64 "\n", r9);
|
|
printf(">>> R10 = 0x%" PRIx64 "\n", r10);
|
|
printf(">>> R11 = 0x%" PRIx64 "\n", r11);
|
|
printf(">>> R12 = 0x%" PRIx64 "\n", r12);
|
|
printf(">>> R13 = 0x%" PRIx64 "\n", r13);
|
|
printf(">>> R14 = 0x%" PRIx64 "\n", r14);
|
|
printf(">>> R15 = 0x%" PRIx64 "\n", r15);
|
|
#endif
|
|
|
|
uc_assert_success(uc_close(uc));
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
// callback for SYSCALL instruction (X86).
|
|
static void hook_syscall(uc_engine *uc, void *user_data)
|
|
{
|
|
uint64_t rax;
|
|
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_RAX, &rax));
|
|
assert_int_equal(0x100, rax);
|
|
|
|
rax = 0x200;
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_RAX, &rax));
|
|
}
|
|
|
|
static void test_x86_64_syscall(void **state)
|
|
{
|
|
uc_engine *uc;
|
|
uc_hook trace1;
|
|
uc_err err;
|
|
|
|
static const uint64_t address = 0x1000000;
|
|
static const uint8_t code[] = {
|
|
0x0F, 0x05, // SYSCALL
|
|
};
|
|
|
|
int64_t rax = 0x100;
|
|
|
|
// Initialize emulator in X86-64bit mode
|
|
err = uc_open(UC_ARCH_X86, UC_MODE_64, &uc);
|
|
uc_assert_success(err);
|
|
|
|
// map 2MB memory for this emulation
|
|
err = uc_mem_map(uc, address, 2 * 1024 * 1024, UC_PROT_ALL);
|
|
uc_assert_success(err);
|
|
|
|
// write machine code to be emulated to memory
|
|
err = uc_mem_write(uc, address, code, sizeof(code));
|
|
uc_assert_success(err);
|
|
|
|
// hook interrupts for syscall
|
|
err = uc_hook_add(uc, &trace1, UC_HOOK_INSN, hook_syscall, NULL, 1, 0, UC_X86_INS_SYSCALL);
|
|
uc_assert_success(err);
|
|
|
|
// initialize machine registers
|
|
err = uc_reg_write(uc, UC_X86_REG_RAX, &rax);
|
|
uc_assert_success(err);
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
err = uc_emu_start(uc, address, address + sizeof(code), 0, 0);
|
|
uc_assert_success(err);
|
|
|
|
// verify register values
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_RAX, &rax));
|
|
assert_int_equal(0x200, rax);
|
|
|
|
uc_assert_success(uc_close(uc));
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static void test_x86_16(void **state)
|
|
{
|
|
uc_engine *uc;
|
|
uc_err err;
|
|
uint8_t tmp;
|
|
|
|
static const uint64_t address = 0;
|
|
static const uint8_t code[] = {
|
|
0x00, 0x00, // add byte ptr [bx + si], al
|
|
};
|
|
|
|
int32_t eax = 7;
|
|
int32_t ebx = 5;
|
|
int32_t esi = 6;
|
|
|
|
// Initialize emulator in X86-16bit mode
|
|
err = uc_open(UC_ARCH_X86, UC_MODE_16, &uc);
|
|
uc_assert_success(err);
|
|
|
|
// map 8KB memory for this emulation
|
|
err = uc_mem_map(uc, address, 8 * 1024, UC_PROT_ALL);
|
|
uc_assert_success(err);
|
|
|
|
// write machine code to be emulated to memory
|
|
err = uc_mem_write(uc, address, code, sizeof(code));
|
|
uc_assert_success(err);
|
|
|
|
// initialize machine registers
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_EAX, &eax));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_EBX, &ebx));
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_ESI, &esi));
|
|
|
|
// emulate machine code in infinite time (last param = 0), or when
|
|
// finishing all the code.
|
|
err = uc_emu_start(uc, address, address+sizeof(code), 0, 0);
|
|
uc_assert_success(err);
|
|
|
|
// read from memory
|
|
uc_assert_success(uc_mem_read(uc, 11, &tmp, 1));
|
|
assert_int_equal(7, tmp);
|
|
|
|
uc_assert_success(uc_close(uc));
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static void test_i386_reg_save(void **state)
|
|
{
|
|
uc_engine *uc;
|
|
uc_context *saved_context;
|
|
|
|
static const uint64_t address = 0;
|
|
static const uint8_t code[] = {
|
|
0x40 // inc eax
|
|
};
|
|
int32_t eax = 1;
|
|
|
|
// Initialize emulator
|
|
uc_assert_success(uc_open(UC_ARCH_X86, UC_MODE_32, &uc));
|
|
|
|
// map 8KB memory for this emulation
|
|
uc_assert_success(uc_mem_map(uc, address, 8 * 1024, UC_PROT_ALL));
|
|
|
|
// write machine code to be emulated to memory
|
|
uc_assert_success(uc_mem_write(uc, address, code, sizeof(code)));
|
|
|
|
// set eax to 1
|
|
uc_assert_success(uc_reg_write(uc, UC_X86_REG_EAX, &eax));
|
|
|
|
// step one instruction
|
|
uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
|
|
|
|
// grab a buffer to use for state saving
|
|
uc_assert_success(uc_context_alloc(uc, &saved_context));
|
|
|
|
// save the state
|
|
uc_assert_success(uc_context_save(uc, saved_context));
|
|
|
|
// step one instruction
|
|
uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
|
|
|
|
// check that eax == 3
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
|
|
assert_int_equal(eax, 3);
|
|
|
|
// restore the state
|
|
uc_context_restore(uc, saved_context);
|
|
|
|
// check that eax == 2
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
|
|
assert_int_equal(eax, 2);
|
|
|
|
// step one instruction
|
|
uc_assert_success(uc_emu_start(uc, address, address+1, 0, 0));
|
|
|
|
// check that eax == 3
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
|
|
assert_int_equal(eax, 3);
|
|
|
|
// restore the state
|
|
uc_context_restore(uc, saved_context);
|
|
|
|
// check that eax == 2
|
|
uc_assert_success(uc_reg_read(uc, UC_X86_REG_EAX, &eax));
|
|
assert_int_equal(eax, 2);
|
|
|
|
// clean up;
|
|
uc_free(saved_context);
|
|
uc_assert_success(uc_close(uc));
|
|
}
|
|
/******************************************************************************/
|
|
|
|
int main(void) {
|
|
const struct CMUnitTest tests[] = {
|
|
cmocka_unit_test(test_i386),
|
|
cmocka_unit_test(test_i386_jump),
|
|
cmocka_unit_test(test_i386_inout),
|
|
cmocka_unit_test(test_i386_loop),
|
|
cmocka_unit_test(test_i386_invalid_mem_read),
|
|
cmocka_unit_test(test_i386_invalid_mem_write),
|
|
cmocka_unit_test(test_i386_jump_invalid),
|
|
cmocka_unit_test(test_i386_reg_save),
|
|
|
|
cmocka_unit_test(test_x86_64),
|
|
cmocka_unit_test(test_x86_64_syscall),
|
|
|
|
cmocka_unit_test(test_x86_16),
|
|
|
|
cmocka_unit_test_setup_teardown(test_basic_blocks, setup32, teardown),
|
|
};
|
|
return cmocka_run_group_tests(tests, NULL, NULL);
|
|
}
|