зеркало из https://github.com/mozilla/gecko-dev.git
back out changeset 41c421f97869
This commit is contained in:
Jim Mathies
Родитель
dececb8f4e
Коммит
f90e03b799
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@ -54,8 +54,6 @@
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#include "nsStringGlue.h"
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||||
|
||||
#ifdef XP_WIN
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// we want to use the DLL blocklist if possible
|
||||
#define XRE_WANT_DLL_BLOCKLIST
|
||||
// we want a wmain entry point
|
||||
#include "nsWindowsWMain.cpp"
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -1,189 +0,0 @@
|
|||
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* ***** BEGIN LICENSE BLOCK *****
|
||||
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public License Version
|
||||
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||
* for the specific language governing rights and limitations under the
|
||||
* License.
|
||||
*
|
||||
* The Original Code is mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is
|
||||
* Mozilla Corp
|
||||
* Portions created by the Initial Developer are Copyright (C) 2009
|
||||
* the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
* Vladimir Vukicevic <vladimir@pobox.com>
|
||||
*
|
||||
* Alternatively, the contents of this file may be used under the terms of
|
||||
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||
* of those above. If you wish to allow use of your version of this file only
|
||||
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||
* use your version of this file under the terms of the MPL, indicate your
|
||||
* decision by deleting the provisions above and replace them with the notice
|
||||
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||
* the provisions above, a recipient may use your version of this file under
|
||||
* the terms of any one of the MPL, the GPL or the LGPL.
|
||||
*
|
||||
* ***** END LICENSE BLOCK ***** */
|
||||
|
||||
#include <windows.h>
|
||||
#include <winternl.h>
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||||
|
||||
#include <stdio.h>
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|
||||
#include "nsAutoPtr.h"
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|
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#include "prlog.h"
|
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|
||||
#include "nsWindowsDllInterceptor.h"
|
||||
|
||||
#define IN_WINDOWS_DLL_BLOCKLIST
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#include "nsWindowsDllBlocklist.h"
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|
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typedef NTSTATUS (NTAPI *LdrLoadDll_func) (PWCHAR filePath, PULONG flags, PUNICODE_STRING moduleFileName, PHANDLE handle);
|
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|
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static LdrLoadDll_func stub_LdrLoadDll = 0;
|
||||
|
||||
static NTSTATUS NTAPI
|
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patched_LdrLoadDll (PWCHAR filePath, PULONG flags, PUNICODE_STRING moduleFileName, PHANDLE handle)
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{
|
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// We have UCS2 (UTF16?), we want ASCII, but we also just want the filename portion
|
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#define DLLNAME_MAX 128
|
||||
char dllName[DLLNAME_MAX+1];
|
||||
|
||||
// Dirty secret about this UNICODE_STRING: it's not guaranteed to be
|
||||
// null-terminated, and Length is supposed to contain the number of
|
||||
// characters. But in the UNICODE_STRING passed to this function,
|
||||
// that doesn't seem to be true -- Length is often much bigger than
|
||||
// the actual valid characters of the string, which seems to always
|
||||
// be null terminated. So, we take the minimum of len or the length
|
||||
// to the first null byte, if any, but we still can't assume the null
|
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// termination.
|
||||
int len = moduleFileName->Length;
|
||||
wchar_t *fn_buf = moduleFileName->Buffer;
|
||||
|
||||
int count = 0;
|
||||
while (count < len && fn_buf[count] != 0)
|
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count++;
|
||||
|
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len = count;
|
||||
|
||||
// copy it into fname, which will then be guaranteed null-terminated
|
||||
nsAutoArrayPtr<wchar_t> fname = new wchar_t[len+1];
|
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wcsncpy(fname, moduleFileName->Buffer, len);
|
||||
|
||||
wchar_t *dll_part = wcsrchr(fname, L'\\');
|
||||
if (dll_part) {
|
||||
dll_part = dll_part + 1;
|
||||
len = (fname+len) - dll_part;
|
||||
} else {
|
||||
dll_part = fname;
|
||||
}
|
||||
|
||||
// if it's too long, then, we assume we won't want to block it,
|
||||
// since DLLNAME_MAX should be at least long enough to hold the longest
|
||||
// entry in our blocklist.
|
||||
if (len > DLLNAME_MAX)
|
||||
goto continue_loading;
|
||||
|
||||
// copy over to our char byte buffer, lowercasing ASCII as we go
|
||||
for (int i = 0; i < len; i++) {
|
||||
wchar_t c = dll_part[i];
|
||||
if (c >= 'A' && c <= 'Z')
|
||||
c += 'a' - 'A';
|
||||
|
||||
if (c > 0x7f) {
|
||||
// welp, it's not ascii; if we need to add non-ascii things to
|
||||
// our blocklist, we'll have to remove this limitation.
|
||||
goto continue_loading;
|
||||
}
|
||||
|
||||
dllName[i] = (char) c;
|
||||
}
|
||||
|
||||
dllName[len] = 0;
|
||||
|
||||
// then compare to everything on the blocklist
|
||||
DllBlockInfo *info = &sWindowsDllBlocklist[0];
|
||||
while (info->name) {
|
||||
if (strcmp(info->name, dllName) == 0)
|
||||
break;
|
||||
|
||||
info++;
|
||||
}
|
||||
|
||||
if (info->name) {
|
||||
BOOL load_ok = FALSE;
|
||||
|
||||
if (info->maxVersion != ALL_VERSIONS) {
|
||||
// figure out the length of the string that we need
|
||||
DWORD pathlen = SearchPathW(filePath, fname, L".dll", 0, NULL, NULL);
|
||||
if (pathlen == 0) {
|
||||
// uh, we couldn't find the DLL at all, so...
|
||||
return STATUS_DLL_NOT_FOUND;
|
||||
}
|
||||
|
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nsAutoArrayPtr<wchar_t> full_fname = new wchar_t[pathlen+1];
|
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|
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// now actually grab it
|
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SearchPathW(filePath, fname, L".dll", pathlen+1, full_fname, NULL);
|
||||
|
||||
DWORD zero;
|
||||
DWORD infoSize = GetFileVersionInfoSizeW(full_fname, &zero);
|
||||
|
||||
// If we failed to get the version information, we block.
|
||||
|
||||
if (infoSize != 0) {
|
||||
nsAutoArrayPtr<unsigned char> infoData = new unsigned char[infoSize];
|
||||
VS_FIXEDFILEINFO *vInfo;
|
||||
UINT vInfoLen;
|
||||
|
||||
if (GetFileVersionInfoW(full_fname, 0, infoSize, infoData) &&
|
||||
VerQueryValueW(infoData, L"\\", (LPVOID*) &vInfo, &vInfoLen))
|
||||
{
|
||||
unsigned long long fVersion =
|
||||
((unsigned long long)vInfo->dwFileVersionMS) << 32 |
|
||||
((unsigned long long)vInfo->dwFileVersionLS);
|
||||
|
||||
// finally do the version check, and if it's greater than our block
|
||||
// version, keep loading
|
||||
if (fVersion > info->maxVersion)
|
||||
goto continue_loading;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
PR_LogPrint("LdrLoadDll: Blocking load of '%s'", dllName);
|
||||
return STATUS_DLL_NOT_FOUND;
|
||||
}
|
||||
|
||||
continue_loading:
|
||||
return stub_LdrLoadDll(filePath, flags, moduleFileName, handle);
|
||||
}
|
||||
|
||||
WindowsDllInterceptor NtDllIntercept;
|
||||
|
||||
void
|
||||
SetupDllBlocklist()
|
||||
{
|
||||
NtDllIntercept.Init("ntdll.dll");
|
||||
|
||||
bool ok = NtDllIntercept.AddHook("LdrLoadDll", patched_LdrLoadDll, (void**) &stub_LdrLoadDll);
|
||||
|
||||
if (!ok)
|
||||
PR_LogPrint ("LdrLoadDll hook failed, no dll blocklisting active");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,67 +0,0 @@
|
|||
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* ***** BEGIN LICENSE BLOCK *****
|
||||
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public License Version
|
||||
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||
* for the specific language governing rights and limitations under the
|
||||
* License.
|
||||
*
|
||||
* The Original Code is mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is
|
||||
* Mozilla Corp
|
||||
* Portions created by the Initial Developer are Copyright (C) 2009
|
||||
* the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
* Vladimir Vukicevic <vladimir@pobox.com>
|
||||
*
|
||||
* Alternatively, the contents of this file may be used under the terms of
|
||||
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||
* of those above. If you wish to allow use of your version of this file only
|
||||
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||
* use your version of this file under the terms of the MPL, indicate your
|
||||
* decision by deleting the provisions above and replace them with the notice
|
||||
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||
* the provisions above, a recipient may use your version of this file under
|
||||
* the terms of any one of the MPL, the GPL or the LGPL.
|
||||
*
|
||||
* ***** END LICENSE BLOCK ***** */
|
||||
|
||||
#ifndef IN_WINDOWS_DLL_BLOCKLIST
|
||||
#error This file should only be included by nsWindowsDllBlocklist.cpp
|
||||
#endif
|
||||
|
||||
#define ALL_VERSIONS ((unsigned long long)-1LL)
|
||||
|
||||
struct DllBlockInfo {
|
||||
// The name of the DLL -- in LOWERCASE! It will be compared to
|
||||
// a lowercase version of the DLL name only.
|
||||
const char *name;
|
||||
|
||||
// If maxVersion is ALL_VERSIONS, we'll block all versions of this
|
||||
// dll. Otherwise, we'll block all versions less than or equal to
|
||||
// the given version, as queried by GetFileVersionInfo and
|
||||
// VS_FIXEDFILEINFO's dwFileVersionMS and dwFileVersionLS fields.
|
||||
//
|
||||
// Note that the version is usually 4 components, which is A.B.C.D
|
||||
// encoded as 0x AAAA BBBB CCCC DDDD ULL (spaces added for clarity),
|
||||
// but it's not required to be of that format.
|
||||
unsigned long long maxVersion;
|
||||
};
|
||||
|
||||
static DllBlockInfo sWindowsDllBlocklist[] = {
|
||||
// EXAMPLE:
|
||||
// { "uxtheme.dll", ALL_VERSIONS },
|
||||
// { "uxtheme.dll", 0x0000123400000000ULL },
|
||||
// The DLL name must be in lowercase!
|
||||
{ NULL, 0 }
|
||||
};
|
||||
|
|
@ -1,228 +0,0 @@
|
|||
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||
/* ***** BEGIN LICENSE BLOCK *****
|
||||
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
||||
*
|
||||
* The contents of this file are subject to the Mozilla Public License Version
|
||||
* 1.1 (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
* http://www.mozilla.org/MPL/
|
||||
*
|
||||
* Software distributed under the License is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
||||
* for the specific language governing rights and limitations under the
|
||||
* License.
|
||||
*
|
||||
* The Original Code is mozilla.org code.
|
||||
*
|
||||
* The Initial Developer of the Original Code is
|
||||
* Mozilla Corp
|
||||
* Portions created by the Initial Developer are Copyright (C) 2009
|
||||
* the Initial Developer. All Rights Reserved.
|
||||
*
|
||||
* Contributor(s):
|
||||
* Vladimir Vukicevic <vladimir@pobox.com>
|
||||
*
|
||||
* Alternatively, the contents of this file may be used under the terms of
|
||||
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
||||
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
||||
* in which case the provisions of the GPL or the LGPL are applicable instead
|
||||
* of those above. If you wish to allow use of your version of this file only
|
||||
* under the terms of either the GPL or the LGPL, and not to allow others to
|
||||
* use your version of this file under the terms of the MPL, indicate your
|
||||
* decision by deleting the provisions above and replace them with the notice
|
||||
* and other provisions required by the GPL or the LGPL. If you do not delete
|
||||
* the provisions above, a recipient may use your version of this file under
|
||||
* the terms of any one of the MPL, the GPL or the LGPL.
|
||||
*
|
||||
* ***** END LICENSE BLOCK ***** */
|
||||
|
||||
#ifndef NS_WINDOWS_DLL_INTERCEPTOR_H_
|
||||
#define NS_WINDOWS_DLL_INTERCEPTOR_H_
|
||||
#include <windows.h>
|
||||
#include <winternl.h>
|
||||
|
||||
/*
|
||||
* Simple trampoline interception
|
||||
*
|
||||
* 1. Save first N bytes of OrigFunction to trampoline, where N is a
|
||||
* number of bytes >= 5 that are instruction aligned.
|
||||
*
|
||||
* 2. Replace first 5 bytes of OrigFunction with a jump to the Hook
|
||||
* function.
|
||||
*
|
||||
* 3. After N bytes of the trampoline, add a jump to OrigFunction+N to
|
||||
* continue original program flow.
|
||||
*
|
||||
* 4. Hook function needs to call the trampoline during its execution,
|
||||
* to invoke the original function (so address of trampoline is
|
||||
* returned).
|
||||
*
|
||||
*/
|
||||
|
||||
class WindowsDllInterceptor
|
||||
{
|
||||
typedef unsigned char *byteptr_t;
|
||||
public:
|
||||
WindowsDllInterceptor()
|
||||
: mModule(0)
|
||||
{
|
||||
}
|
||||
|
||||
WindowsDllInterceptor(const char *modulename, int nhooks = 0) {
|
||||
Init(modulename, nhooks);
|
||||
}
|
||||
|
||||
void Init(const char *modulename, int nhooks = 0) {
|
||||
if (mModule)
|
||||
return;
|
||||
|
||||
mModule = LoadLibraryEx(modulename, NULL, 0);
|
||||
if (!mModule) {
|
||||
//printf("LoadLibraryEx for '%s' failed\n", modulename);
|
||||
return;
|
||||
}
|
||||
|
||||
int hooksPerPage = 4096 / kHookSize;
|
||||
if (nhooks == 0)
|
||||
nhooks = hooksPerPage;
|
||||
|
||||
mMaxHooks = nhooks + (hooksPerPage % nhooks);
|
||||
mCurHooks = 0;
|
||||
|
||||
mHookPage = (byteptr_t) VirtualAllocEx(GetCurrentProcess(), NULL, mMaxHooks * kHookSize,
|
||||
MEM_COMMIT | MEM_RESERVE,
|
||||
PAGE_EXECUTE_READWRITE);
|
||||
|
||||
if (!mHookPage) {
|
||||
mModule = 0;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void LockHooks() {
|
||||
if (!mModule)
|
||||
return;
|
||||
|
||||
DWORD op;
|
||||
VirtualProtectEx(GetCurrentProcess(), mHookPage, mMaxHooks * kHookSize, PAGE_EXECUTE_READ, &op);
|
||||
|
||||
mModule = 0;
|
||||
}
|
||||
|
||||
bool AddHook(const char *pname,
|
||||
void *hookDest,
|
||||
void **origFunc)
|
||||
{
|
||||
if (!mModule)
|
||||
return false;
|
||||
|
||||
void *pAddr = (void *) GetProcAddress(mModule, pname);
|
||||
if (!pAddr) {
|
||||
//printf ("GetProcAddress failed\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
void *tramp = CreateTrampoline(pAddr, hookDest);
|
||||
if (!tramp) {
|
||||
//printf ("CreateTrampoline failed\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
*origFunc = tramp;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
protected:
|
||||
const static int kPageSize = 4096;
|
||||
const static int kHookSize = 128;
|
||||
|
||||
HMODULE mModule;
|
||||
byteptr_t mHookPage;
|
||||
int mMaxHooks;
|
||||
int mCurHooks;
|
||||
|
||||
byteptr_t CreateTrampoline(void *origFunction,
|
||||
void *dest)
|
||||
{
|
||||
byteptr_t tramp = FindTrampolineSpace();
|
||||
if (!tramp)
|
||||
return 0;
|
||||
|
||||
byteptr_t origBytes = (byteptr_t) origFunction;
|
||||
|
||||
int nBytes = 0;
|
||||
while (nBytes < 5) {
|
||||
// Understand some simple instructions that might be found in a
|
||||
// prologue; we might need to extend this as necessary.
|
||||
//
|
||||
// Note! If we ever need to understand jump instructions, we'll
|
||||
// need to rewrite the displacement argument.
|
||||
if (origBytes[nBytes] >= 0x88 && origBytes[nBytes] <= 0x8B) {
|
||||
// various MOVs; but only handle the case where it truly is a 2-byte instruction
|
||||
unsigned char b = origBytes[nBytes+1];
|
||||
if (((b & 0xc0) == 0xc0) ||
|
||||
(((b & 0xc0) == 0x00) &&
|
||||
((b & 0x38) != 0x20) && ((b & 0x38) != 0x28)))
|
||||
{
|
||||
nBytes += 2;
|
||||
} else {
|
||||
// complex MOV, bail
|
||||
return 0;
|
||||
}
|
||||
} else if (origBytes[nBytes] == 0x68) {
|
||||
// PUSH with 4-byte operand
|
||||
nBytes += 5;
|
||||
} else if ((origBytes[nBytes] & 0xf0) == 0x50) {
|
||||
// 1-byte PUSH/POP
|
||||
nBytes++;
|
||||
} else {
|
||||
//printf ("Unknown x86 instruction byte 0x%02x, aborting trampoline\n", origBytes[nBytes]);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (nBytes > 100) {
|
||||
//printf ("Too big!");
|
||||
return 0;
|
||||
}
|
||||
|
||||
memcpy(tramp, origFunction, nBytes);
|
||||
|
||||
// OrigFunction+N, the target of the trampoline
|
||||
byteptr_t trampDest = origBytes + nBytes;
|
||||
|
||||
tramp[nBytes] = 0xE9; // jmp
|
||||
*((intptr_t*)(tramp+nBytes+1)) = (intptr_t)trampDest - (intptr_t)(tramp+nBytes+5); // target displacement
|
||||
|
||||
// ensure we can modify the original code
|
||||
DWORD op;
|
||||
if (!VirtualProtectEx(GetCurrentProcess(), origFunction, nBytes, PAGE_EXECUTE_READWRITE, &op)) {
|
||||
//printf ("VirtualProtectEx failed! %d\n", GetLastError());
|
||||
return 0;
|
||||
}
|
||||
|
||||
// now modify the original bytes
|
||||
origBytes[0] = 0xE9; // jmp
|
||||
*((intptr_t*)(origBytes+1)) = (intptr_t)dest - (intptr_t)(origBytes+5); // target displacement
|
||||
|
||||
// restore protection; if this fails we can't really do anything about it
|
||||
VirtualProtectEx(GetCurrentProcess(), origFunction, nBytes, op, &op);
|
||||
|
||||
return tramp;
|
||||
}
|
||||
|
||||
byteptr_t FindTrampolineSpace() {
|
||||
if (mCurHooks >= mMaxHooks)
|
||||
return 0;
|
||||
|
||||
byteptr_t p = mHookPage + mCurHooks*kHookSize;
|
||||
|
||||
mCurHooks++;
|
||||
|
||||
return p;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
#endif /* NS_WINDOWS_DLL_INTERCEPTOR_H_ */
|
||||
|
|
@ -8,13 +8,6 @@
|
|||
|
||||
#include "nsUTF8Utils.h"
|
||||
|
||||
#if defined(_MSC_VER) && defined(_M_IX86) && defined(XRE_WANT_DLL_BLOCKLIST)
|
||||
#include "nsWindowsDllBlocklist.cpp"
|
||||
#else
|
||||
#undef XRE_WANT_DLL_BLOCKLIST
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef __MINGW32__
|
||||
|
||||
/* MingW currently does not implement a wide version of the
|
||||
|
|
@ -88,12 +81,9 @@ void ExtractEnvironmentFromCL(int &argc, char **&argv)
|
|||
}
|
||||
#endif
|
||||
|
||||
|
||||
int wmain(int argc, WCHAR **argv)
|
||||
{
|
||||
#ifdef XRE_WANT_DLL_BLOCKLIST
|
||||
SetupDllBlocklist();
|
||||
#endif
|
||||
|
||||
char **argvConverted = new char*[argc + 1];
|
||||
if (!argvConverted)
|
||||
return 127;
|
||||
|
|
|
|||
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