rizin/libr/debug/p/native/w32.c
2015-06-28 11:07:33 +02:00

517 lines
14 KiB
C

#include <windows.h>
#include <tlhelp32.h>
#include <stdio.h>
#include <winbase.h>
#include <psapi.h>
static HANDLE tid2handler(int pid, int tid);
// XXX remove
#define WIN32_PI(x) x
#if 0
// list windows.. required to get list of windows for current pid and send kill signals
BOOL CALLBACK enumWindowsProc (HWND hwnd, LPARAM lParam) {
DWORD procid;
GetWindowThreadProcessId (hwnd, &procid);
if ((HANDLE)procid == g_hProc) { staticchar module[1024];
module[0] = 0;
if (g_softPhoneTitle.Size() > 0) { int rc = GetWindowText (hwnd, module, 1023);
module[rc] = 0;
}
if (IsWindow(hwnd) && ((g_appTitle.Size() == 0) || (g_appTitle.EqualsNoCase(module)))) {
g_hWnd = hwnd;
return (false);
}
}
return (true);
}
int
findApplicationWindow (void) {
g_hWnd = NULL;
EnumWindows (enumWindowsProc, 0);
return (0);
}
#endif
#if 0
1860 typedef struct _FLOATING_SAVE_AREA {
1861 DWORD ControlWord;
1862 DWORD StatusWord;
1863 DWORD TagWord;
1864 DWORD ErrorOffset;
1865 DWORD ErrorSelector;
1866 DWORD DataOffset;
1867 DWORD DataSelector;
1868 BYTE RegArea[80];
1869 DWORD Cr0NpxState;
1870 } FLOATING_SAVE_AREA;
1871 typedef struct _CONTEXT {
1872 DWORD ContextFlags;
1873 DWORD Dr0;
1874 DWORD Dr1;
1875 DWORD Dr2;
1876 DWORD Dr3;
1877 DWORD Dr6;
1878 DWORD Dr7;
1879 FLOATING_SAVE_AREA FloatSave;
1880 DWORD SegGs;
1881 DWORD SegFs;
1882 DWORD SegEs;
1883 DWORD SegDs;
1884 DWORD Edi;
1885 DWORD Esi;
1886 DWORD Ebx;
1887 DWORD Edx;
1888 DWORD Ecx;
1889 DWORD Eax;
1890 DWORD Ebp;
1891 DWORD Eip;
1892 DWORD SegCs;
1893 DWORD EFlags;
1894 DWORD Esp;
1895 DWORD SegSs;
1896 BYTE ExtendedRegs[MAXIMUM_SUPPORTED_EXTENSION];
1897 } CONTEXT;
#endif
//BOOL WINAPI DebugActiveProcessStop(DWORD dwProcessId);
BOOL WINAPI DebugBreakProcess(
HANDLE Process
//_In_ HANDLE Process
);
static void (*gmbn)(HANDLE, HMODULE, LPTSTR, int) = NULL;
static int (*gmi)(HANDLE, HMODULE, LPMODULEINFO, int) = NULL;
static BOOL WINAPI (*w32_detach)(DWORD) = NULL;
static HANDLE WINAPI (*w32_openthread)(DWORD, BOOL, DWORD) = NULL;
static BOOL WINAPI (*w32_dbgbreak)(HANDLE) = NULL;
static DWORD WINAPI (*w32_getthreadid)(HANDLE) = NULL; // Vista
static DWORD WINAPI (*w32_getprocessid)(HANDLE) = NULL; // XP
static HANDLE WINAPI (*w32_openprocess)(DWORD, BOOL, DWORD) = NULL;
static void r_str_wtoc(char* d, const WCHAR* s) {
int i = 0;
while (s[i] != '\0') {
d[i] = (char)s[i];
++i;
}
d[i] = 0;
}
static int w32dbg_SeDebugPrivilege() {
/////////////////////////////////////////////////////////
// Note: Enabling SeDebugPrivilege adapted from sample
// MSDN @ http://msdn.microsoft.com/en-us/library/aa446619%28VS.85%29.aspx
// Enable SeDebugPrivilege
int ret = R_TRUE;
TOKEN_PRIVILEGES tokenPriv;
HANDLE hToken = NULL;
LUID luidDebug;
if (!OpenProcessToken (GetCurrentProcess (),
TOKEN_ADJUST_PRIVILEGES, &hToken))
return R_FALSE;
if (!LookupPrivilegeValue (NULL, SE_DEBUG_NAME, &luidDebug)) {
CloseHandle (hToken);
return R_FALSE;
}
tokenPriv.PrivilegeCount = 1;
tokenPriv.Privileges[0].Luid = luidDebug;
tokenPriv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (AdjustTokenPrivileges (hToken, FALSE, &tokenPriv, 0, NULL, NULL) != FALSE) {
if (tokenPriv.Privileges[0].Attributes == SE_PRIVILEGE_ENABLED) {
// eprintf ("PRIV ENABLED\n");
}
// Always successful, even in the cases which lead to OpenProcess failure
// eprintf ("Successfully changed token privileges.\n");
// XXX if we cant get the token nobody tells?? wtf
} else {
eprintf ("Failed to change token privileges 0x%x\n", (int)GetLastError());
ret = R_FALSE;
}
CloseHandle (hToken);
return ret;
}
static void print_lasterr(const char *str) {
/* code from MSDN, :? */
LPWSTR pMessage = L"%1!*.*s! %4 %5!*s!";
DWORD_PTR pArgs[] = { (DWORD_PTR)4, (DWORD_PTR)2, (DWORD_PTR)L"Bill", // %1!*.*s!
(DWORD_PTR)L"Bob", // %4
(DWORD_PTR)6, (DWORD_PTR)L"Bill" }; // %5!*s!
WCHAR buffer[200];
char cbuffer[100];
if (!FormatMessage (FORMAT_MESSAGE_FROM_STRING |
FORMAT_MESSAGE_ARGUMENT_ARRAY,
pMessage,
0, // ignored
0, // ignored
(LPTSTR)&buffer,
sizeof (buffer)-1,
(va_list*)pArgs)) {
eprintf ("(%s): Format message failed with 0x%x\n",
r_str_get (str), (ut32)GetLastError ());
return;
}
r_str_wtoc (cbuffer, buffer);
eprintf ("print_lasterr: %s ::: %s\n", r_str_get (str), r_str_get (cbuffer));
}
static int w32_dbg_init() {
HANDLE lib;
/* escalate privs (required for win7/vista) */
w32dbg_SeDebugPrivilege ();
/* lookup function pointers for portability */
w32_detach = (BOOL WINAPI (*)(DWORD))
GetProcAddress (GetModuleHandle ("kernel32"),
"DebugActiveProcessStop");
w32_openthread = (HANDLE WINAPI (*)(DWORD, BOOL, DWORD))
GetProcAddress (GetModuleHandle ("kernel32"), "OpenThread");
w32_openprocess = (HANDLE WINAPI (*)(DWORD, BOOL, DWORD))
GetProcAddress (GetModuleHandle ("kernel32"), "OpenProcess");
w32_dbgbreak = (BOOL WINAPI (*)(HANDLE))
GetProcAddress (GetModuleHandle ("kernel32"),
"DebugBreakProcess");
// only windows vista :(
w32_getthreadid = (DWORD WINAPI (*)(HANDLE))
GetProcAddress (GetModuleHandle ("kernel32"), "GetThreadId");
// from xp1
w32_getprocessid = (DWORD WINAPI (*)(HANDLE))
GetProcAddress (GetModuleHandle ("kernel32"), "GetProcessId");
lib = LoadLibrary ("psapi.dll");
if(lib == NULL) {
eprintf ("Cannot load psapi.dll!!\n");
return R_FALSE;
}
gmbn = (void (*)(HANDLE, HMODULE, LPTSTR, int))
GetProcAddress (lib, "GetModuleBaseNameA");
gmi = (int (*)(HANDLE, HMODULE, LPMODULEINFO, int))
GetProcAddress (lib, "GetModuleInformation");
if (w32_detach == NULL || w32_openthread == NULL || w32_dbgbreak == NULL ||
gmbn == NULL || gmi == NULL) {
// OOPS!
eprintf ("debug_init_calls:\n"
"DebugActiveProcessStop: 0x%p\n"
"OpenThread: 0x%p\n"
"DebugBreakProcess: 0x%p\n"
"GetThreadId: 0x%p\n",
w32_detach, w32_openthread, w32_dbgbreak, w32_getthreadid);
return R_FALSE;
}
return R_TRUE;
}
#if 0
static HANDLE w32_t2h(pid_t tid) {
TH_INFO *th = get_th (tid);
if(th == NULL) {
/* refresh thread list */
w32_dbg_threads (tid);
/* try to search thread */
if((th = get_th (tid)) == NULL)
return NULL;
}
return th->ht;
}
#endif
inline static int w32_h2t(HANDLE h) {
if (w32_getthreadid != NULL) // >= Windows Vista
return w32_getthreadid (h);
if (w32_getprocessid != NULL) // >= Windows XP1
return w32_getprocessid (h);
return (int)(size_t)h; // XXX broken
}
static inline int w32_h2p(HANDLE h) {
return w32_getprocessid (h);
}
// TODO: not yet used !!!
static int w32_first_thread(int pid) {
HANDLE th;
HANDLE thid;
THREADENTRY32 te32;
int ret = -1;
te32.dwSize = sizeof(THREADENTRY32);
if (w32_openthread == NULL) {
eprintf("w32_thread_list: no w32_openthread?\n");
return -1;
}
th = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, pid);
if (th == INVALID_HANDLE_VALUE) {
eprintf ("w32_thread_list: invalid handle\n");
return -1;
}
if (!Thread32First (th, &te32)) {
CloseHandle (th);
eprintf ("w32_thread_list: no thread first\n");
return -1;
}
do {
/* get all threads of process */
if (te32.th32OwnerProcessID == pid) {
thid = w32_openthread (THREAD_ALL_ACCESS, 0, te32.th32ThreadID);
if (thid == NULL)
goto err_load_th;
CloseHandle (th);
return te32.th32ThreadID;
}
} while (Thread32Next (th, &te32));
err_load_th:
if (ret == -1)
print_lasterr ((char *)__FUNCTION__);
eprintf ("w32thread: Oops\n");
return pid; // -1 ?
}
static int debug_exception_event (unsigned long code) {
switch (code) {
case EXCEPTION_BREAKPOINT:
//eprintf ("breakpoint\n");
break;
case EXCEPTION_SINGLE_STEP:
//eprintf ("singlestep\n");
break;
/* fatal exceptions */
case EXCEPTION_ACCESS_VIOLATION:
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
case EXCEPTION_ILLEGAL_INSTRUCTION:
case EXCEPTION_INT_DIVIDE_BY_ZERO:
case EXCEPTION_STACK_OVERFLOW:
eprintf ("fatal exception\n");
break;
#if __MINGW64__
case 0x4000001f: //STATUS_WX86_BREAKPOINT
eprintf("WOW64 Loaded.\n");
return 1;
break;
#endif
default:
eprintf ("unknown exception\n");
break;
}
return 0;
}
static int w32_dbg_wait(RDebug *dbg, int pid) {
DEBUG_EVENT de;
int tid, next_event = 0;
unsigned int code;
int ret = R_DBG_REASON_UNKNOWN;
do {
/* handle debug events */
if (WaitForDebugEvent (&de, INFINITE) == 0) {
print_lasterr ((char *)__FUNCTION__);
return -1;
}
/* save thread id */
tid = de.dwThreadId;
//pid = de.dwProcessId;
dbg->tid=tid;
/* get exception code */
code = de.dwDebugEventCode;
//eprintf("code: %x pid=%08x tid=%08x\n",code,pid,tid);
/* Ctrl-C? */
/* get kind of event */
switch (code) {
case CREATE_PROCESS_DEBUG_EVENT:
eprintf ("(%d) created process (%d:%p)\n", pid, w32_h2t (de.u.CreateProcessInfo.hProcess), de.u.CreateProcessInfo.lpStartAddress);
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
ret = R_DBG_REASON_NEW_PID;
break;
case EXIT_PROCESS_DEBUG_EVENT:
eprintf ("\n\n______________[ process finished ]_______________\n\n");
//debug_load();
next_event = 0;
ret = R_DBG_REASON_EXIT_PID;
break;
case CREATE_THREAD_DEBUG_EVENT:
eprintf ("(%d) created thread (%p)\n", pid, de.u.CreateThread.lpStartAddress);
r_debug_native_continue (dbg, pid, tid, -1);
ret = R_DBG_REASON_NEW_TID;
next_event = 1;
break;
case EXIT_THREAD_DEBUG_EVENT:
eprintf ("EXIT_THREAD\n");
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
ret = R_DBG_REASON_EXIT_TID;
break;
case LOAD_DLL_DEBUG_EVENT:
eprintf ("(%d) Loading %s library at %p\n",pid, "", de.u.LoadDll.lpBaseOfDll);
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
ret = R_DBG_REASON_NEW_LIB;
break;
case UNLOAD_DLL_DEBUG_EVENT:
eprintf ("UNLOAD_DLL\n");
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
ret = R_DBG_REASON_EXIT_LIB;
break;
case OUTPUT_DEBUG_STRING_EVENT:
eprintf("OUTPUT_DEBUG_STRING\n");
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
break;
case RIP_EVENT:
eprintf("RIP_EVENT\n");
r_debug_native_continue (dbg, pid, tid, -1);
next_event = 1;
// XXX unknown ret = R_DBG_REASON_TRAP;
break;
case EXCEPTION_DEBUG_EVENT:
next_event = debug_exception_event (de.u.Exception.ExceptionRecord.ExceptionCode);
if (!next_event)
return R_DBG_REASON_TRAP;
else
r_debug_native_continue (dbg, pid, tid, -1);
break;
default:
eprintf ("Unknown event: %d\n", code);
return -1;
}
} while (next_event);
return ret;
}
static inline int CheckValidPE(unsigned char * PeHeader) {
IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)PeHeader;
IMAGE_NT_HEADERS *nt_headers;
if (dos_header->e_magic==IMAGE_DOS_SIGNATURE) {
nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
+ dos_header->e_lfanew);
if (nt_headers->Signature==IMAGE_NT_SIGNATURE)
return 1;
}
return 0;
}
static HANDLE tid2handler(int pid, int tid) {
HANDLE th = CreateToolhelp32Snapshot (TH32CS_SNAPTHREAD, pid);
THREADENTRY32 te32 = { .dwSize = sizeof (THREADENTRY32) };
int ret = -1;
if (th == INVALID_HANDLE_VALUE)
return NULL;
if (!Thread32First (th, &te32)) {
CloseHandle (th);
return NULL;
}
do {
if (te32.th32OwnerProcessID == pid && te32.th32ThreadID == tid) {
CloseHandle (th);
return w32_openthread (THREAD_ALL_ACCESS, 0,
te32.th32ThreadID);
}
ret++;
} while (Thread32Next (th, &te32));
if (ret == -1)
print_lasterr ((char *)__FUNCTION__);
CloseHandle (th);
return NULL;
}
RList *w32_thread_list (int pid, RList *list) {
HANDLE th;
HANDLE thid;
THREADENTRY32 te32;
int ret;
ret = -1;
te32.dwSize = sizeof(THREADENTRY32);
if (w32_openthread == NULL) {
eprintf("w32_thread_list: no w32_openthread?\n");
return list;
}
th = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, pid);
if(th == INVALID_HANDLE_VALUE || !Thread32First (th, &te32))
goto err_load_th;
do {
/* get all threads of process */
if (te32.th32OwnerProcessID == pid) {
//te32.dwFlags);
/* open a new handler */
// XXX: fd leak?
#if 0
75 typedef struct tagTHREADENTRY32 {
76 DWORD dwSize;
77 DWORD cntUsage;
78 DWORD th32ThreadID;
79 DWORD th32OwnerProcessID;
80 LONG tpBasePri;
81 LONG tpDeltaPri;
82 DWORD dwFlags;
#endif
thid = w32_openthread (THREAD_ALL_ACCESS, 0, te32.th32ThreadID);
if (thid == NULL)
goto err_load_th;
ret = te32.th32ThreadID;
//eprintf("Thread: %x %x\n", thid, te32.th32ThreadID);
r_list_append (list, r_debug_pid_new ("???", te32.th32ThreadID, 's', 0));
}
} while (Thread32Next (th, &te32));
err_load_th:
if(ret == -1)
print_lasterr ((char *)__FUNCTION__);
if(th != INVALID_HANDLE_VALUE)
CloseHandle (th);
return list;
}
// XXX hacky
RList *w32_pids (int pid, RList *list) {
HANDLE th;
THREADENTRY32 te32;
int ret = -1;
te32.dwSize = sizeof (THREADENTRY32);
if (w32_openthread == NULL) {
eprintf ("w32_thread_list: no w32_openthread?\n");
return list;
}
th = CreateToolhelp32Snapshot (TH32CS_SNAPTHREAD, pid);
if(th == INVALID_HANDLE_VALUE || !Thread32First (th, &te32))
goto err_load_th;
do {
if (ret != te32.th32OwnerProcessID)
r_list_append (list, r_debug_pid_new ("???", te32.th32OwnerProcessID, 's', 0));
ret = te32.th32OwnerProcessID;
} while (Thread32Next (th, &te32));
err_load_th:
if(ret == -1)
print_lasterr ((char *)__FUNCTION__);
if(th != INVALID_HANDLE_VALUE)
CloseHandle (th);
return list;
}
#include "maps/windows.c"