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This commit continues the PR #111

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- Allow to register handler separately for invalid memory access
- Add new memory events for hooking:
   - UC_MEM_READ_INVALID, UC_MEM_WRITE_INVALID, UC_MEM_FETCH_INVALID
   - UC_HOOK_MEM_READ_PROT, UC_HOOK_MEM_WRITE_PROT, UC_HOOK_MEM_FETCH_PROT
- Rename UC_ERR_EXEC_PROT to UC_ERR_FETCH_PROT
- Change API uc_hook_add() so event type @type can be combined from hooking types
This commit is contained in:
Nguyen Anh Quynh
2015-09-24 14:18:02 +08:00
parent e479f72403
commit 90eb8f2e72
21 changed files with 223 additions and 128 deletions
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10
tests/regress/mem_exec.c
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@@ -116,9 +116,9 @@ static bool hook_mem_invalid(uc_engine *uc, uc_mem_type type,
{
switch(type) {
default:
printf("not ok %d - UC_HOOK_MEM_INVALID type: %d at 0x%" PRIx64 "\n", log_num++, type, addr);
printf("not ok %d - memory invalid type: %d at 0x%" PRIx64 "\n", log_num++, type, addr);
return false;
case UC_MEM_EXEC_PROT:
case UC_MEM_FETCH_PROT:
printf("# Fetch from non-executable memory at 0x%"PRIx64 "\n", addr);
//make page executable
@@ -221,11 +221,11 @@ int main(int argc, char **argv, char **envp)
}
// intercept invalid memory events
if (uc_hook_add(uc, &trace1, UC_HOOK_MEM_INVALID, hook_mem_invalid, NULL) != UC_ERR_OK) {
printf("not ok %d - Failed to install UC_HOOK_MEM_INVALID ucr\n", log_num++);
if (uc_hook_add(uc, &trace1, UC_HOOK_MEM_WRITE_PROT | UC_HOOK_MEM_FETCH_PROT, hook_mem_invalid, NULL) != UC_ERR_OK) {
printf("not ok %d - Failed to install memory invalid handler\n", log_num++);
return 8;
} else {
printf("ok %d - UC_HOOK_MEM_INVALID installed\n", log_num++);
printf("ok %d - memory invalid handler installed\n", log_num++);
}
// emulate machine code until told to stop by hook_code