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update samples to conform to uc API changes

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This commit is contained in:
Jonathon Reinhart
2015-09-02 21:25:59 -04:00
parent bd0a6921cc
commit 0feab69a61
5 changed files with 88 additions and 85 deletions
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47
regress/ro_mem_test.c
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@@ -46,22 +46,22 @@ bottom:
*/
// callback for tracing instruction
static void hook_code(uch handle, uint64_t address, uint32_t size, void *user_data)
static void hook_code(struct uc_struct *uc, uint64_t address, uint32_t size, void *user_data)
{
uint32_t esp;
printf(">>> Tracing instruction at 0x%"PRIx64 ", instruction size = 0x%x\n", address, size);
uc_reg_read(handle, UC_X86_REG_ESP, &esp);
uc_reg_read(uc, UC_X86_REG_ESP, &esp);
printf(">>> --- ESP is 0x%x\n", esp);
}
// callback for tracing memory access (READ or WRITE)
static bool hook_mem_invalid(uch handle, uc_mem_type type,
static bool hook_mem_invalid(struct uc_struct *uc, uc_mem_type type,
uint64_t address, int size, int64_t value, void *user_data)
{
uint32_t esp;
uc_reg_read(handle, UC_X86_REG_ESP, &esp);
uc_reg_read(uc, UC_X86_REG_ESP, &esp);
switch(type) {
default:
@@ -74,7 +74,7 @@ static bool hook_mem_invalid(uch handle, uc_mem_type type,
upper = (esp + 0xfff) & ~0xfff;
printf(">>> Stack appears to be missing at 0x%"PRIx64 ", allocating now\n", address);
// map this memory in with 2MB in size
uc_mem_map(handle, upper - 0x8000, 0x8000, UC_PROT_READ | UC_PROT_WRITE);
uc_mem_map(uc, upper - 0x8000, 0x8000, UC_PROT_READ | UC_PROT_WRITE);
// return true to indicate we want to continue
return true;
}
@@ -94,7 +94,8 @@ static bool hook_mem_invalid(uch handle, uc_mem_type type,
int main(int argc, char **argv, char **envp)
{
uch handle, trace1, trace2;
struct uc_struct *uc;
uc_hook_h trace1, trace2;
uc_err err;
uint8_t bytes[8];
uint32_t esp;
@@ -108,44 +109,44 @@ int main(int argc, char **argv, char **envp)
printf("Memory mapping test\n");
// Initialize emulator in X86-32bit mode
err = uc_open(UC_ARCH_X86, UC_MODE_32, &handle);
err = uc_open(UC_ARCH_X86, UC_MODE_32, &uc);
if (err) {
printf("Failed on uc_open() with error returned: %u\n", err);
return 1;
}
uc_mem_map(handle, 0x100000, 0x1000, UC_PROT_ALL);
uc_mem_map(handle, 0x200000, 0x2000, UC_PROT_ALL);
uc_mem_map(handle, 0x300000, 0x3000, UC_PROT_ALL);
uc_mem_map(handle, 0x400000, 0x4000, UC_PROT_READ);
uc_mem_map(uc, 0x100000, 0x1000, UC_PROT_ALL);
uc_mem_map(uc, 0x200000, 0x2000, UC_PROT_ALL);
uc_mem_map(uc, 0x300000, 0x3000, UC_PROT_ALL);
uc_mem_map(uc, 0x400000, 0x4000, UC_PROT_READ);
if (map_stack) {
printf("Pre-mapping stack\n");
uc_mem_map(handle, STACK, STACK_SIZE, UC_PROT_READ | UC_PROT_WRITE);
uc_mem_map(uc, STACK, STACK_SIZE, UC_PROT_READ | UC_PROT_WRITE);
} else {
printf("Mapping stack on first invalid memory access\n");
}
esp = STACK + STACK_SIZE;
uc_reg_write(handle, UC_X86_REG_ESP, &esp);
uc_reg_write(uc, UC_X86_REG_ESP, &esp);
// write machine code to be emulated to memory
if (uc_mem_write(handle, 0x400000, PROGRAM, sizeof(PROGRAM))) {
if (uc_mem_write(uc, 0x400000, PROGRAM, sizeof(PROGRAM))) {
printf("Failed to write emulation code to memory, quit!\n");
return 2;
} else {
printf("Allowed to write to read only memory via uc_mem_write\n");
}
//uc_hook_add(handle, &trace2, UC_HOOK_CODE, hook_code, NULL, (uint64_t)0x400000, (uint64_t)0x400fff);
//uc_hook_add(uc, &trace2, UC_HOOK_CODE, hook_code, NULL, (uint64_t)0x400000, (uint64_t)0x400fff);
// intercept invalid memory events
uc_hook_add(handle, &trace1, UC_HOOK_MEM_INVALID, hook_mem_invalid, NULL);
uc_hook_add(uc, &trace1, UC_HOOK_MEM_INVALID, hook_mem_invalid, NULL);
// emulate machine code in infinite time
printf("BEGIN execution - 1\n");
err = uc_emu_start(handle, 0x400000, 0x400000 + sizeof(PROGRAM), 0, 10);
err = uc_emu_start(uc, 0x400000, 0x400000 + sizeof(PROGRAM), 0, 10);
if (err) {
printf("Expected failue on uc_emu_start() with error returned %u: %s\n",
err, uc_strerror(err));
@@ -157,8 +158,8 @@ int main(int argc, char **argv, char **envp)
// emulate machine code in infinite time
printf("BEGIN execution - 2\n");
uint32_t eax = 0x40002C;
uc_reg_write(handle, UC_X86_REG_EAX, &eax);
err = uc_emu_start(handle, 0x400015, 0x400000 + sizeof(PROGRAM), 0, 2);
uc_reg_write(uc, UC_X86_REG_EAX, &eax);
err = uc_emu_start(uc, 0x400015, 0x400000 + sizeof(PROGRAM), 0, 2);
if (err) {
printf("Expected failure on uc_emu_start() with error returned %u: %s\n",
err, uc_strerror(err));
@@ -168,7 +169,7 @@ int main(int argc, char **argv, char **envp)
printf("END execution - 2\n");
printf("Verifying content at 0x400025 is unchanged\n");
if (!uc_mem_read(handle, 0x400025, bytes, 4)) {
if (!uc_mem_read(uc, 0x400025, bytes, 4)) {
printf(">>> Read 4 bytes from [0x%x] = 0x%x\n", (uint32_t)0x400025, *(uint32_t*) bytes);
if (0x41414141 != *(uint32_t*) bytes) {
printf("ERROR content in read only memory changed\n");
@@ -181,7 +182,7 @@ int main(int argc, char **argv, char **envp)
}
printf("Verifying content at 0x40002C is unchanged\n");
if (!uc_mem_read(handle, 0x40002C, bytes, 4)) {
if (!uc_mem_read(uc, 0x40002C, bytes, 4)) {
printf(">>> Read 4 bytes from [0x%x] = 0x%x\n", (uint32_t)0x40002C, *(uint32_t*) bytes);
if (0x42424242 != *(uint32_t*) bytes) {
printf("ERROR content in read only memory changed\n");
@@ -194,14 +195,14 @@ int main(int argc, char **argv, char **envp)
}
printf("Verifying content at bottom of stack is readable and correct\n");
if (!uc_mem_read(handle, esp - 4, bytes, 4)) {
if (!uc_mem_read(uc, esp - 4, bytes, 4)) {
printf(">>> Read 4 bytes from [0x%x] = 0x%x\n", (uint32_t)(esp - 4), *(uint32_t*) bytes);
} else {
printf(">>> Failed to read 4 bytes from [0x%x]\n", (uint32_t)(esp - 4));
return 4;
}
uc_close(&handle);
uc_close(uc);
return 0;
}