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Merge remote-tracking branch 'upstream/master' into change-handle-based-api

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This commit is contained in:
Jonathon Reinhart
2015-08-30 00:02:33 -04:00
parent e74bc0db88 c23d387e2f
commit 3bd705a060
84 changed files with 5283 additions and 1274 deletions
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86
samples/sample_x86.c
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@ -26,6 +26,7 @@
//#define X86_CODE64 "\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"
#define X86_CODE64 "\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"
#define X86_CODE16 "\x00\x00" // add byte ptr [bx + si], al
#define X86_CODE64_SYSCALL "\x0f\x05" // SYSCALL
// memory address where emulation starts
#define ADDRESS 0x1000000
@ -76,7 +77,7 @@ static bool hook_mem_invalid(struct uc_struct *uc, uc_mem_type type,
printf(">>> Missing memory is being WRITE at 0x%"PRIx64 ", data size = %u, data value = 0x%"PRIx64 "\n",
address, size, value);
// map this memory in with 2MB in size
uc_mem_map(uc, 0xaaaa0000, 2 * 1024*1024);
uc_mem_map(uc, 0xaaaa0000, 2 * 1024*1024, UC_PROT_ALL);
// return true to indicate we want to continue
return true;
}
@ -152,6 +153,19 @@ static void hook_out(struct uc_struct *uc, uint32_t port, int size, uint32_t val
printf("--- register value = 0x%x\n", tmp);
}
// callback for SYSCALL instruction (X86).
static void hook_syscall(struct uc_struct *uc, void *user_data)
{
uint64_t rax;
uc_reg_read(uc, UC_X86_REG_RAX, &rax);
if (rax == 0x100) {
rax = 0x200;
uc_reg_write(uc, UC_X86_REG_RAX, &rax);
} else
printf("ERROR: was not expecting rax=0x%"PRIx64 " in syscall\n", rax);
}
static void test_i386(void)
{
struct uc_struct *uc;
@ -172,7 +186,7 @@ static void test_i386(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32, sizeof(X86_CODE32) - 1)) {
@ -231,7 +245,7 @@ static void test_i386_jump(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_JUMP,
@ -278,7 +292,7 @@ static void test_i386_loop(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_LOOP, sizeof(X86_CODE32_LOOP) - 1)) {
@ -330,7 +344,7 @@ static void test_i386_invalid_mem_read(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_MEM_READ, sizeof(X86_CODE32_MEM_READ) - 1)) {
@ -388,7 +402,7 @@ static void test_i386_invalid_mem_write(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_MEM_WRITE, sizeof(X86_CODE32_MEM_WRITE) - 1)) {
@ -459,7 +473,7 @@ static void test_i386_jump_invalid(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_JMP_INVALID, sizeof(X86_CODE32_JMP_INVALID) - 1)) {
@ -515,7 +529,7 @@ static void test_i386_inout(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE32_INOUT, sizeof(X86_CODE32_INOUT) - 1)) {
@ -590,7 +604,7 @@ static void test_x86_64(void)
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024);
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE64, sizeof(X86_CODE64) - 1)) {
@ -672,6 +686,57 @@ static void test_x86_64(void)
uc_close(uc);
}
static void test_x86_64_syscall(void)
{
struct uc_struct *uc;
uc_hook_h trace1;
uc_err err;
int64_t rax = 0x100;
printf("===================================\n");
printf("Emulate x86_64 code with 'syscall' instruction\n");
// Initialize emulator in X86-64bit mode
err = uc_open(UC_ARCH_X86, UC_MODE_64, &uc);
if (err) {
printf("Failed on uc_open() with error returned: %u\n", err);
return;
}
// map 2MB memory for this emulation
uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, ADDRESS, (uint8_t *)X86_CODE64_SYSCALL, sizeof(X86_CODE64_SYSCALL) - 1)) {
printf("Failed to write emulation code to memory, quit!\n");
return;
}
// hook interrupts for syscall
uc_hook_add(uc, &trace1, UC_HOOK_INSN, hook_syscall, NULL, UC_X86_INS_SYSCALL);
// initialize machine registers
uc_reg_write(uc, UC_X86_REG_RAX, &rax);
// emulate machine code in infinite time (last param = 0), or when
// finishing all the code.
err = uc_emu_start(uc, ADDRESS, ADDRESS + sizeof(X86_CODE64_SYSCALL) - 1, 0, 0);
if (err) {
printf("Failed on uc_emu_start() with error returned %u: %s\n",
err, uc_strerror(err));
}
// now print out some registers
printf(">>> Emulation done. Below is the CPU context\n");
uc_reg_read(uc, UC_X86_REG_RAX, &rax);
printf(">>> RAX = 0x%" PRIx64 "\n", rax);
uc_close(uc);
}
static void test_x86_16(void)
{
struct uc_struct *uc;
@ -692,7 +757,7 @@ static void test_x86_16(void)
}
// map 8KB memory for this emulation
uc_mem_map(uc, 0, 8 * 1024);
uc_mem_map(uc, 0, 8 * 1024, UC_PROT_ALL);
// write machine code to be emulated to memory
if (uc_mem_write(uc, 0, (uint8_t *)X86_CODE16, sizeof(X86_CODE64) - 1)) {
@ -740,6 +805,7 @@ int main(int argc, char **argv, char **envp)
if (!strcmp(argv[1], "-64")) {
test_x86_64();
test_x86_64_syscall();
}
if (!strcmp(argv[1], "-16")) {