Textractor_test/vnr/texthook/host/hookman.cc
2018-06-18 14:45:16 -04:00

440 lines
11 KiB
C++

// hookman.cc
// 8/24/2013 jichi
// Branch IHF/HookManager.cpp, rev 133
// 8/24/2013 TODO: Clean up this file
#ifdef _MSC_VER
# pragma warning (disable:4100) // C4100: unreference formal parameter
# pragma warning (disable:4146) // C4146: unary minus operator applied to unsigned type
#endif // _MSC_VER
#include "hookman.h"
#include "vnrhook/include/const.h"
#include "vnrhook/include/defs.h"
#include "vnrhook/include/types.h"
#include "ithsys/ithsys.h"
#include <stdio.h>
//#include <emmintrin.h>
#include "profile/Profile.h"
#include "profile/pugixml.h"
#include "profile/misc.h"
#define DEBUG "vnrhost/hookman.cc"
namespace { // unnamed
//enum { MAX_ENTRY = 0x40 };
#define HM_LOCK CriticalSectionLocker d_locker(hmcs) // Synchronized scope for accessing private data
} // unnamed namespace
HookManager *man; // jichi 9/22/2013: initialized in main
//BitMap* pid_map;
DWORD clipboard_flag,
split_time,
repeat_count,
global_filter,
cyclic_remove;
DWORD GetHookName(LPSTR str, DWORD pid, DWORD hook_addr, DWORD max)
{
if (!pid)
return 0;
DWORD len = 0;
max--; //for '\0' magic marker.
//if (pid == 0) {
// len = wcslen(HookNameInitTable[0]);
// if (len >= max)
// len = max;
// memcpy(str, HookNameInitTable[0], len << 1);
// str[len] = 0;
// return len;
//}
//::man->LockProcessHookman(pid);
ProcessRecord *pr = ::man->GetProcessRecord(pid);
if (!pr)
return 0;
WaitForSingleObject(pr->hookman_mutex, 0);
const Hook *hks = (const Hook *)pr->hookman_map;
for (int i = 0; i < MAX_HOOK; i++)
if (hks[i].Address() == hook_addr) {
len = hks[i].NameLength();
if (len >= max)
len = max;
ReadProcessMemory(pr->process_handle, hks[i].Name(), str, len, &len);
if (str[len - 1] == 0)
len--;
else
str[len] = 0;
break;
}
ReleaseMutex(pr->hookman_mutex);
//::man->UnlockProcessHookman(pid);
return len;
}
//Class member of HookManger
HookManager::HookManager() :
// jichi 9/21/2013: Zero memory
//CRITICAL_SECTION hmcs;
current(nullptr)
, create(nullptr)
, remove(nullptr)
, reset(nullptr)
, attach(nullptr)
, detach(nullptr)
, hook(nullptr)
, current_pid(0)
, new_thread_number(0)
, threadTable()
, processRecordsByIds()
{
TextThread* consoleTextThread = threadTable[{0, -1UL, -1UL, -1UL}] = new TextThread({ 0, -1UL, -1UL, -1UL }, new_thread_number++);
consoleTextThread->Status() |= USING_UNICODE;
SetCurrent(consoleTextThread);
InitializeCriticalSection(&hmcs);
}
HookManager::~HookManager()
{
// Artikash 5/31/2018: This is called when the program terminates, so Windows should automatically free all these resources.....right?
//LeaveCriticalSection(&hmcs);
//LARGE_INTEGER timeout={-1000*1000,-1};
//IthBreak();
//NtWaitForSingleObject(destroy_event, 0, 0);
//CloseHandle(destroy_event);
//CloseHandle(cmd_pipes[0]);
//CloseHandle(recv_threads[0]);
//delete thread_table;
//delete head.key;
//DeleteCriticalSection(&hmcs);
}
TextThread *HookManager::FindSingle(DWORD number)
{
for (auto i : threadTable)
{
if (i.second->Number() == number)
{
return i.second;
}
}
return nullptr;
}
void HookManager::SetCurrent(TextThread *it)
{
if (current)
current->Status() &= ~CURRENT_SELECT;
current = it;
if (it)
it->Status() |= CURRENT_SELECT;
}
void HookManager::SelectCurrent(DWORD num)
{
if (TextThread *st = FindSingle(num)) {
SetCurrent(st);
if (reset)
reset(st);
//st->ResetEditText();
}
}
void HookManager::RemoveSingleHook(DWORD pid, DWORD addr)
{
HM_LOCK;
std::vector<ThreadParameter> removedThreads;
for (auto i : threadTable)
{
if (i.second->PID() == pid && i.second->Addr() == addr)
{
if (remove)
{
remove(i.second);
}
delete i.second;
removedThreads.push_back(i.first);
}
}
for (auto i : removedThreads)
{
threadTable.erase(i);
}
SelectCurrent(0);
}
void HookManager::RemoveProcessContext(DWORD pid)
{
HM_LOCK;
std::vector<ThreadParameter> removedThreads;
for (auto i : threadTable)
{
if (i.second->PID() == pid)
{
if (remove)
{
remove(i.second);
}
delete i.second;
removedThreads.push_back(i.first);
}
}
for (auto i : removedThreads)
{
threadTable.erase(i);
}
SelectCurrent(0);
}
void HookManager::RegisterProcess(DWORD pid, HANDLE hostPipe)
{
HM_LOCK;
ProcessRecord* record = processRecordsByIds[pid] = new ProcessRecord;
record->hostPipe = hostPipe;
record->hookman_section = OpenFileMappingW(FILE_MAP_READ, FALSE, (ITH_SECTION_ + std::to_wstring(pid)).c_str());
record->hookman_map = MapViewOfFile(record->hookman_section, FILE_MAP_READ, 0, 0, HOOK_SECTION_SIZE / 2); // jichi 1/16/2015: Changed to half to hook section size
record->process_handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
record->hookman_mutex = OpenMutexW(MUTEX_ALL_ACCESS, FALSE, (ITH_HOOKMAN_MUTEX_ + std::to_wstring(pid)).c_str());
//if (NT_SUCCESS(NtOpenProcess(&hProc,
// PROCESS_QUERY_INFORMATION|
// PROCESS_CREATE_THREAD|
// PROCESS_VM_READ|
// PROCESS_VM_WRITE|
// PROCESS_VM_OPERATION,
// &oa,&id)))
if (attach)
attach(pid);
}
void HookManager::UnRegisterProcess(DWORD pid)
{
HM_LOCK;
//ConsoleOutput("vnrhost:UnRegisterProcess: lock");
//EnterCriticalSection(&hmcs);
ProcessRecord pr = *processRecordsByIds[pid];
CloseHandle(pr.hookman_mutex);
UnmapViewOfFile(pr.hookman_map);
CloseHandle(pr.process_handle);
CloseHandle(pr.hookman_section);
processRecordsByIds.erase(pid);
//CloseHandle(text_pipes[i]);
//CloseHandle(cmd_pipes[i]);
//CloseHandle(recv_threads[i]);
//CloseHandle(record[i].hookman_mutex);
////if (::ith_has_section)
//NtUnmapViewOfSection(NtCurrentProcess(), record[i].hookman_map);
////else
//// delete[] record[i].hookman_map;
//CloseHandle(record[i].process_handle);
//CloseHandle(record[i].hookman_section);
//for (; i < MAX_REGISTER; i++) {
// record[i] = record[i+1];
// text_pipes[i] = text_pipes[i+1];
// cmd_pipes[i] = cmd_pipes[i+1];
// recv_threads[i] = recv_threads[i+1];
// if (text_pipes[i] == 0)
// break;
//}
//register_count--;
//if (current_pid == pid)
// current_pid = register_count ? record[0].pid_register : 0;
RemoveProcessContext(pid);
//pid_map->Clear(pid>>2);
//if (register_count == 1)
// NtSetEvent(destroy_event, 0);
//LeaveCriticalSection(&hmcs);
//ConsoleOutput("vnrhost:UnRegisterProcess: unlock");
if (detach)
detach(pid);
}
// jichi 9/28/2013: I do not need this
//void HookManager::SetName(DWORD type)
//{
// WCHAR c;
// if (type & PRINT_DWORD)
// c = L'H';
// else if (type & USING_UNICODE) {
// if (type & STRING_LAST_CHAR)
// c = L'L';
// else if (type & USING_STRING)
// c = L'Q';
// else
// c = L'W';
// } else {
// if (type & USING_STRING)
// c = L'S';
// else if (type & BIG_ENDIAN)
// c = L'A';
// else
// c = L'B';
// }
// //swprintf(user_entry,L"UserHook%c",c);
//}
void HookManager::DispatchText(DWORD pid, const BYTE *text, DWORD hook, DWORD retn, DWORD spl, int len)
{
// jichi 20/27/2013: When PID is zero, the text comes from console, which I don't need
if (!text || !pid || len <= 0)
return;
HM_LOCK;
//bool flag=false;
ThreadParameter tp = {pid, hook, retn, spl};
//ConsoleOutput("vnrhost:DispatchText: lock");
//EnterCriticalSection(&hmcs);
TextThread *it;
if (!(it = threadTable[tp]))
{
it = threadTable[tp] = new TextThread(tp, new_thread_number++);
if (create)
{
create(it);
}
}
it->AddText(text, len, false);
}
void HookManager::AddConsoleOutput(LPCWSTR text)
{
if (text)
{
int len = wcslen(text) * 2;
TextThread *console = threadTable[{0, -1UL, -1UL, -1UL}];
//EnterCriticalSection(&hmcs);
console->AddText((BYTE*)text,len,false);
console->AddText((BYTE*)L"\r\n",4,false);
//LeaveCriticalSection(&hmcs);
}
}
void HookManager::ClearCurrent()
{
HM_LOCK;
//ConsoleOutput("vnrhost:ClearCurrent: lock");
//EnterCriticalSection(&hmcs);
if (current) {
current->Reset();
if (reset)
reset(current);
}
//current->ResetEditText();
//LeaveCriticalSection(&hmcs);
//ConsoleOutput("vnrhost:ClearCurrent: unlock");
}
ProcessRecord *HookManager::GetProcessRecord(DWORD pid)
{
HM_LOCK;
//EnterCriticalSection(&hmcs);
return processRecordsByIds[pid];
//ProcessRecord *pr = i < MAX_REGISTER ? record + i : nullptr;
//LeaveCriticalSection(&hmcs);
//return pr;
}
HANDLE HookManager::GetHostPipeByPID(DWORD pid)
{
HM_LOCK;
//EnterCriticalSection(&hmcs);
return processRecordsByIds[pid] ? processRecordsByIds[pid]->hostPipe : nullptr;
//HANDLE h = i < MAX_REGISTER ? cmd_pipes[i] : 0;
//LeaveCriticalSection(&hmcs);
//return h;
}
MK_BASIC_TYPE(DWORD)
MK_BASIC_TYPE(LPVOID)
void AddHooksToProfile(Profile& pf, const ProcessRecord& pr);
DWORD AddThreadToProfile(Profile& pf, const ProcessRecord& pr, TextThread* thread);
void MakeHookRelative(const ProcessRecord& pr, HookParam& hp);
void HookManager::GetProfile(DWORD pid, pugi::xml_node profile_node)
{
const ProcessRecord* pr = GetProcessRecord(pid);
if (pr == NULL)
return;
Profile pf(L"serialize");
AddHooksToProfile(pf, *pr);
AddThreadsToProfile(pf, *pr, pid);
pf.XmlWriteProfile(profile_node);
}
void AddHooksToProfile(Profile& pf, const ProcessRecord& pr)
{
WaitForSingleObject(pr.hookman_mutex, 0);
auto hooks = (const Hook*)pr.hookman_map;
for (DWORD i = 0; i < MAX_HOOK; ++i)
{
if (hooks[i].Address() == 0)
continue;
auto& hook = hooks[i];
DWORD type = hook.Type();
if ((type & HOOK_ADDITIONAL) && (type & HOOK_ENGINE) == 0)
{
std::unique_ptr<CHAR[]> name(new CHAR[hook.NameLength()]);
if (ReadProcessMemory(pr.process_handle, hook.Name(), name.get(), hook.NameLength(), NULL))
{
if (hook.hp.module)
{
HookParam hp = hook.hp;
MakeHookRelative(pr, hp);
pf.AddHook(hook_ptr(new HookProfile(hp, toUnicodeString(name.get()))));
}
else
pf.AddHook(hook_ptr(new HookProfile(hook.hp, toUnicodeString(name.get()))));
}
}
}
ReleaseMutex(pr.hookman_mutex);
}
void MakeHookRelative(const ProcessRecord& pr, HookParam& hp)
{
MEMORY_BASIC_INFORMATION info;
VirtualQueryEx(pr.process_handle, (LPCVOID)hp.address, &info, sizeof(info));
hp.address -= (DWORD)info.AllocationBase;
hp.function = 0;
}
void HookManager::AddThreadsToProfile(Profile& pf, const ProcessRecord& pr, DWORD pid)
{
HM_LOCK;
AddThreadToProfile(pf, pr, current);
}
DWORD AddThreadToProfile(Profile& pf, const ProcessRecord& pr, TextThread* thread)
{
const ThreadParameter* tp = thread->GetThreadParameter();
std::wstring hook_name = GetHookNameByAddress(pr, tp->hook);
if (hook_name.empty())
return -1;
auto thread_profile = new ThreadProfile(hook_name, tp->retn, tp->spl, 0, 0,
THREAD_MASK_RETN | THREAD_MASK_SPLIT, L"");
DWORD threads_size = pf.Threads().size();
int thread_profile_index = pf.AddThread(thread_ptr(thread_profile));
if (thread_profile_index == threads_size) // new thread
{
WORD iw = thread_profile_index & 0xFFFF;
if (thread->Status() & CURRENT_SELECT)
pf.SelectedIndex() = iw;
}
return thread_profile_index; // in case more than one thread links to the same thread
}
// EOF