1181 lines
40 KiB
C
1181 lines
40 KiB
C
/*
|
|
* Win32 relay and snoop functions
|
|
*
|
|
* Copyright 1997 Alexandre Julliard
|
|
* Copyright 1998 Marcus Meissner
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "wine/port.h"
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
|
|
#include "ntstatus.h"
|
|
#define WIN32_NO_STATUS
|
|
#include "windef.h"
|
|
#include "winternl.h"
|
|
#include "wine/exception.h"
|
|
#include "ntdll_misc.h"
|
|
#include "wine/unicode.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(relay);
|
|
|
|
#if defined(__i386__) || defined(__x86_64__) || defined(__arm__)
|
|
|
|
WINE_DECLARE_DEBUG_CHANNEL(timestamp);
|
|
WINE_DECLARE_DEBUG_CHANNEL(pid);
|
|
|
|
struct relay_descr /* descriptor for a module */
|
|
{
|
|
void *magic; /* signature */
|
|
void *relay_call; /* functions to call from relay thunks */
|
|
void *relay_call_regs;
|
|
void *private; /* reserved for the relay code private data */
|
|
const char *entry_point_base; /* base address of entry point thunks */
|
|
const unsigned int *entry_point_offsets; /* offsets of entry points thunks */
|
|
const unsigned int *arg_types; /* table of argument types for all entry points */
|
|
};
|
|
|
|
#define RELAY_DESCR_MAGIC ((void *)0xdeb90001)
|
|
#define IS_INTARG(x) (((ULONG_PTR)(x) >> 16) == 0)
|
|
|
|
/* private data built at dll load time */
|
|
|
|
struct relay_entry_point
|
|
{
|
|
void *orig_func; /* original entry point function */
|
|
const char *name; /* function name (if any) */
|
|
};
|
|
|
|
struct relay_private_data
|
|
{
|
|
HMODULE module; /* module handle of this dll */
|
|
unsigned int base; /* ordinal base */
|
|
char dllname[40]; /* dll name (without .dll extension) */
|
|
struct relay_entry_point entry_points[1]; /* list of dll entry points */
|
|
};
|
|
|
|
static const WCHAR **debug_relay_excludelist;
|
|
static const WCHAR **debug_relay_includelist;
|
|
static const WCHAR **debug_snoop_excludelist;
|
|
static const WCHAR **debug_snoop_includelist;
|
|
static const WCHAR **debug_from_relay_excludelist;
|
|
static const WCHAR **debug_from_relay_includelist;
|
|
static const WCHAR **debug_from_snoop_excludelist;
|
|
static const WCHAR **debug_from_snoop_includelist;
|
|
|
|
static RTL_RUN_ONCE init_once = RTL_RUN_ONCE_INIT;
|
|
|
|
/* compare an ASCII and a Unicode string without depending on the current codepage */
|
|
static inline int strcmpAW( const char *strA, const WCHAR *strW )
|
|
{
|
|
while (*strA && ((unsigned char)*strA == *strW)) { strA++; strW++; }
|
|
return (unsigned char)*strA - *strW;
|
|
}
|
|
|
|
/* compare an ASCII and a Unicode string without depending on the current codepage */
|
|
static inline int strncmpiAW( const char *strA, const WCHAR *strW, int n )
|
|
{
|
|
int ret = 0;
|
|
for ( ; n > 0; n--, strA++, strW++)
|
|
if ((ret = toupperW((unsigned char)*strA) - toupperW(*strW)) || !*strA) break;
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* build_list
|
|
*
|
|
* Build a function list from a ';'-separated string.
|
|
*/
|
|
static const WCHAR **build_list( const WCHAR *buffer )
|
|
{
|
|
int count = 1;
|
|
const WCHAR *p = buffer;
|
|
const WCHAR **ret;
|
|
|
|
while ((p = strchrW( p, ';' )))
|
|
{
|
|
count++;
|
|
p++;
|
|
}
|
|
/* allocate count+1 pointers, plus the space for a copy of the string */
|
|
if ((ret = RtlAllocateHeap( GetProcessHeap(), 0,
|
|
(count+1) * sizeof(WCHAR*) + (strlenW(buffer)+1) * sizeof(WCHAR) )))
|
|
{
|
|
WCHAR *str = (WCHAR *)(ret + count + 1);
|
|
WCHAR *q = str;
|
|
|
|
strcpyW( str, buffer );
|
|
count = 0;
|
|
for (;;)
|
|
{
|
|
ret[count++] = q;
|
|
if (!(q = strchrW( q, ';' ))) break;
|
|
*q++ = 0;
|
|
}
|
|
ret[count++] = NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* load_list_value
|
|
*
|
|
* Load a function list from a registry value.
|
|
*/
|
|
static const WCHAR **load_list( HKEY hkey, const WCHAR *value )
|
|
{
|
|
char initial_buffer[4096];
|
|
char *buffer = initial_buffer;
|
|
DWORD count;
|
|
NTSTATUS status;
|
|
UNICODE_STRING name;
|
|
const WCHAR **list = NULL;
|
|
|
|
RtlInitUnicodeString( &name, value );
|
|
status = NtQueryValueKey( hkey, &name, KeyValuePartialInformation, buffer, sizeof(initial_buffer), &count );
|
|
if (status == STATUS_BUFFER_OVERFLOW)
|
|
{
|
|
buffer = RtlAllocateHeap( GetProcessHeap(), 0, count );
|
|
status = NtQueryValueKey( hkey, &name, KeyValuePartialInformation, buffer, count, &count );
|
|
}
|
|
if (status == STATUS_SUCCESS)
|
|
{
|
|
WCHAR *str = (WCHAR *)((KEY_VALUE_PARTIAL_INFORMATION *)buffer)->Data;
|
|
list = build_list( str );
|
|
if (list) TRACE( "%s = %s\n", debugstr_w(value), debugstr_w(str) );
|
|
}
|
|
|
|
if (buffer != initial_buffer) RtlFreeHeap( GetProcessHeap(), 0, buffer );
|
|
return list;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* init_debug_lists
|
|
*
|
|
* Build the relay include/exclude function lists.
|
|
*/
|
|
static DWORD WINAPI init_debug_lists( RTL_RUN_ONCE *once, void *param, void **context )
|
|
{
|
|
OBJECT_ATTRIBUTES attr;
|
|
UNICODE_STRING name;
|
|
HANDLE root, hkey;
|
|
static const WCHAR configW[] = {'S','o','f','t','w','a','r','e','\\',
|
|
'W','i','n','e','\\',
|
|
'D','e','b','u','g',0};
|
|
static const WCHAR RelayIncludeW[] = {'R','e','l','a','y','I','n','c','l','u','d','e',0};
|
|
static const WCHAR RelayExcludeW[] = {'R','e','l','a','y','E','x','c','l','u','d','e',0};
|
|
static const WCHAR SnoopIncludeW[] = {'S','n','o','o','p','I','n','c','l','u','d','e',0};
|
|
static const WCHAR SnoopExcludeW[] = {'S','n','o','o','p','E','x','c','l','u','d','e',0};
|
|
static const WCHAR RelayFromIncludeW[] = {'R','e','l','a','y','F','r','o','m','I','n','c','l','u','d','e',0};
|
|
static const WCHAR RelayFromExcludeW[] = {'R','e','l','a','y','F','r','o','m','E','x','c','l','u','d','e',0};
|
|
static const WCHAR SnoopFromIncludeW[] = {'S','n','o','o','p','F','r','o','m','I','n','c','l','u','d','e',0};
|
|
static const WCHAR SnoopFromExcludeW[] = {'S','n','o','o','p','F','r','o','m','E','x','c','l','u','d','e',0};
|
|
|
|
RtlOpenCurrentUser( KEY_ALL_ACCESS, &root );
|
|
attr.Length = sizeof(attr);
|
|
attr.RootDirectory = root;
|
|
attr.ObjectName = &name;
|
|
attr.Attributes = 0;
|
|
attr.SecurityDescriptor = NULL;
|
|
attr.SecurityQualityOfService = NULL;
|
|
RtlInitUnicodeString( &name, configW );
|
|
|
|
/* @@ Wine registry key: HKCU\Software\Wine\Debug */
|
|
if (NtOpenKey( &hkey, KEY_ALL_ACCESS, &attr )) hkey = 0;
|
|
NtClose( root );
|
|
if (!hkey) return TRUE;
|
|
|
|
debug_relay_includelist = load_list( hkey, RelayIncludeW );
|
|
debug_relay_excludelist = load_list( hkey, RelayExcludeW );
|
|
debug_snoop_includelist = load_list( hkey, SnoopIncludeW );
|
|
debug_snoop_excludelist = load_list( hkey, SnoopExcludeW );
|
|
debug_from_relay_includelist = load_list( hkey, RelayFromIncludeW );
|
|
debug_from_relay_excludelist = load_list( hkey, RelayFromExcludeW );
|
|
debug_from_snoop_includelist = load_list( hkey, SnoopFromIncludeW );
|
|
debug_from_snoop_excludelist = load_list( hkey, SnoopFromExcludeW );
|
|
|
|
NtClose( hkey );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* check_list
|
|
*
|
|
* Check if a given module and function is in the list.
|
|
*/
|
|
static BOOL check_list( const char *module, int ordinal, const char *func, const WCHAR *const *list )
|
|
{
|
|
char ord_str[10];
|
|
|
|
sprintf( ord_str, "%d", ordinal );
|
|
for(; *list; list++)
|
|
{
|
|
const WCHAR *p = strrchrW( *list, '.' );
|
|
if (p && p > *list) /* check module and function */
|
|
{
|
|
int len = p - *list;
|
|
if (strncmpiAW( module, *list, len-1 ) || module[len]) continue;
|
|
if (p[1] == '*' && !p[2]) return TRUE;
|
|
if (!strcmpAW( ord_str, p + 1 )) return TRUE;
|
|
if (func && !strcmpAW( func, p + 1 )) return TRUE;
|
|
}
|
|
else /* function only */
|
|
{
|
|
if (func && !strcmpAW( func, *list )) return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* check_relay_include
|
|
*
|
|
* Check if a given function must be included in the relay output.
|
|
*/
|
|
static BOOL check_relay_include( const char *module, int ordinal, const char *func )
|
|
{
|
|
if (debug_relay_excludelist && check_list( module, ordinal, func, debug_relay_excludelist ))
|
|
return FALSE;
|
|
if (debug_relay_includelist && !check_list( module, ordinal, func, debug_relay_includelist ))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* check_from_module
|
|
*
|
|
* Check if calls from a given module must be included in the relay/snoop output,
|
|
* given the exclusion and inclusion lists.
|
|
*/
|
|
static BOOL check_from_module( const WCHAR **includelist, const WCHAR **excludelist, const WCHAR *module )
|
|
{
|
|
static const WCHAR dllW[] = {'.','d','l','l',0 };
|
|
const WCHAR **listitem;
|
|
BOOL show;
|
|
|
|
if (!module) return TRUE;
|
|
if (!includelist && !excludelist) return TRUE;
|
|
if (excludelist)
|
|
{
|
|
show = TRUE;
|
|
listitem = excludelist;
|
|
}
|
|
else
|
|
{
|
|
show = FALSE;
|
|
listitem = includelist;
|
|
}
|
|
for(; *listitem; listitem++)
|
|
{
|
|
int len;
|
|
|
|
if (!strcmpiW( *listitem, module )) return !show;
|
|
len = strlenW( *listitem );
|
|
if (!strncmpiW( *listitem, module, len ) && !strcmpiW( module + len, dllW ))
|
|
return !show;
|
|
}
|
|
return show;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* RELAY_PrintArgs
|
|
*/
|
|
static inline void RELAY_PrintArgs( const INT_PTR *args, int nb_args, unsigned int typemask )
|
|
{
|
|
while (nb_args--)
|
|
{
|
|
if ((typemask & 3) && !IS_INTARG(*args))
|
|
{
|
|
if (typemask & 2)
|
|
DPRINTF( "%08lx %s", *args, debugstr_w((LPCWSTR)*args) );
|
|
else
|
|
DPRINTF( "%08lx %s", *args, debugstr_a((LPCSTR)*args) );
|
|
}
|
|
else DPRINTF( "%08lx", *args );
|
|
if (nb_args) DPRINTF( "," );
|
|
args++;
|
|
typemask >>= 2;
|
|
}
|
|
}
|
|
|
|
static void print_timestamp(void)
|
|
{
|
|
ULONG ticks = NtGetTickCount();
|
|
DPRINTF( "%3u.%03u:", ticks / 1000, ticks % 1000 );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* relay_trace_entry
|
|
*
|
|
* stack points to the return address, i.e. the first argument is stack[1].
|
|
*/
|
|
void * WINAPI relay_trace_entry( struct relay_descr *descr, unsigned int idx, const INT_PTR *stack )
|
|
{
|
|
WORD ordinal = LOWORD(idx);
|
|
BYTE nb_args = LOBYTE(HIWORD(idx));
|
|
struct relay_private_data *data = descr->private;
|
|
struct relay_entry_point *entry_point = data->entry_points + ordinal;
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
if (TRACE_ON(timestamp)) print_timestamp();
|
|
|
|
if (TRACE_ON(pid))
|
|
DPRINTF( "%04x:", GetCurrentProcessId() );
|
|
|
|
if (entry_point->name)
|
|
DPRINTF( "%04x:Call %s.%s(", GetCurrentThreadId(), data->dllname, entry_point->name );
|
|
else
|
|
DPRINTF( "%04x:Call %s.%u(", GetCurrentThreadId(), data->dllname, data->base + ordinal );
|
|
RELAY_PrintArgs( stack + 1, nb_args, descr->arg_types[ordinal] );
|
|
DPRINTF( ") ret=%08lx\n", stack[0] );
|
|
}
|
|
return entry_point->orig_func;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* relay_trace_exit
|
|
*/
|
|
void WINAPI relay_trace_exit( struct relay_descr *descr, unsigned int idx,
|
|
const INT_PTR *stack, LONGLONG retval )
|
|
{
|
|
WORD ordinal = LOWORD(idx);
|
|
BYTE flags = HIBYTE(HIWORD(idx));
|
|
struct relay_private_data *data = descr->private;
|
|
struct relay_entry_point *entry_point = data->entry_points + ordinal;
|
|
|
|
if (!TRACE_ON(relay)) return;
|
|
|
|
if (TRACE_ON(timestamp)) print_timestamp();
|
|
|
|
if (TRACE_ON(pid))
|
|
DPRINTF( "%04x:", GetCurrentProcessId() );
|
|
|
|
if (entry_point->name)
|
|
DPRINTF( "%04x:Ret %s.%s()", GetCurrentThreadId(), data->dllname, entry_point->name );
|
|
else
|
|
DPRINTF( "%04x:Ret %s.%u()", GetCurrentThreadId(), data->dllname, data->base + ordinal );
|
|
|
|
if (flags & 1) /* 64-bit return value */
|
|
DPRINTF( " retval=%08x%08x ret=%08lx\n",
|
|
(UINT)(retval >> 32), (UINT)retval, stack[0] );
|
|
else
|
|
DPRINTF( " retval=%08lx ret=%08lx\n", (UINT_PTR)retval, stack[0] );
|
|
}
|
|
|
|
#ifdef __i386__
|
|
|
|
extern LONGLONG CDECL call_entry_point( void *func, int nb_args, const INT_PTR *args, int flags );
|
|
__ASM_GLOBAL_FUNC( call_entry_point,
|
|
"pushl %ebp\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
|
|
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
|
|
"movl %esp,%ebp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
|
|
"pushl %esi\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %esi,-4\n\t")
|
|
"pushl %edi\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %edi,-8\n\t")
|
|
"movl 12(%ebp),%edx\n\t"
|
|
"shll $2,%edx\n\t"
|
|
"jz 1f\n\t"
|
|
"subl %edx,%esp\n\t"
|
|
"andl $~15,%esp\n\t"
|
|
"movl 12(%ebp),%ecx\n\t"
|
|
"movl 16(%ebp),%esi\n\t"
|
|
"movl %esp,%edi\n\t"
|
|
"cld\n\t"
|
|
"rep; movsl\n"
|
|
"testl $2,20(%ebp)\n\t" /* (flags & 2) -> thiscall */
|
|
"jz 1f\n\t"
|
|
"popl %ecx\n\t"
|
|
"1:\tcall *8(%ebp)\n\t"
|
|
"leal -8(%ebp),%esp\n\t"
|
|
"popl %edi\n\t"
|
|
__ASM_CFI(".cfi_same_value %edi\n\t")
|
|
"popl %esi\n\t"
|
|
__ASM_CFI(".cfi_same_value %esi\n\t")
|
|
"popl %ebp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
|
|
__ASM_CFI(".cfi_same_value %ebp\n\t")
|
|
"ret" )
|
|
|
|
extern LONGLONG WINAPI relay_call( struct relay_descr *descr, unsigned int idx, const INT_PTR *stack );
|
|
__ASM_GLOBAL_FUNC( relay_call,
|
|
"pushl %ebp\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
|
|
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
|
|
"movl %esp,%ebp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
|
|
"pushl %esi\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %esi,-4\n\t")
|
|
"pushl %edi\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %edi,-8\n\t")
|
|
"pushl %ecx\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %ecx,-12\n\t")
|
|
/* trace the parameters */
|
|
"pushl 16(%ebp)\n\t"
|
|
"pushl 12(%ebp)\n\t"
|
|
"pushl 8(%ebp)\n\t"
|
|
"call " __ASM_NAME("relay_trace_entry") "\n\t"
|
|
/* copy the arguments*/
|
|
"movzbl 14(%ebp),%ecx\n\t" /* number of args */
|
|
"jecxz 1f\n\t"
|
|
"leal 0(,%ecx,4),%edx\n\t"
|
|
"subl %edx,%esp\n\t"
|
|
"andl $~15,%esp\n\t"
|
|
"movl 16(%ebp),%esi\n\t"
|
|
"addl $4,%esi\n\t"
|
|
"movl %esp,%edi\n\t"
|
|
"cld\n\t"
|
|
"rep; movsl\n\t"
|
|
"testb $2,15(%ebp)\n\t" /* (flags & 2) -> thiscall */
|
|
"jz 1f\n\t"
|
|
"popl %ecx\n"
|
|
/* call the entry point */
|
|
"1:\tcall *%eax\n\t"
|
|
"movl %eax,%esi\n\t"
|
|
"movl %edx,%edi\n\t"
|
|
/* trace the return value */
|
|
"leal -20(%ebp),%esp\n\t"
|
|
"pushl %edx\n\t"
|
|
"pushl %eax\n\t"
|
|
"pushl 16(%ebp)\n\t"
|
|
"pushl 12(%ebp)\n\t"
|
|
"pushl 8(%ebp)\n\t"
|
|
"call " __ASM_NAME("relay_trace_exit") "\n\t"
|
|
/* restore return value and return */
|
|
"leal -12(%ebp),%esp\n\t"
|
|
"movl %esi,%eax\n\t"
|
|
"movl %edi,%edx\n\t"
|
|
"popl %ecx\n\t"
|
|
__ASM_CFI(".cfi_same_value %ecx\n\t")
|
|
"popl %edi\n\t"
|
|
__ASM_CFI(".cfi_same_value %edi\n\t")
|
|
"popl %esi\n\t"
|
|
__ASM_CFI(".cfi_same_value %esi\n\t")
|
|
"popl %ebp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa %esp,4\n\t")
|
|
__ASM_CFI(".cfi_same_value %ebp\n\t")
|
|
"ret $12" )
|
|
|
|
void WINAPI __regs_relay_call_regs( struct relay_descr *descr, unsigned int idx,
|
|
unsigned int orig_eax, unsigned int ret_addr,
|
|
CONTEXT *context )
|
|
{
|
|
WORD ordinal = LOWORD(idx);
|
|
BYTE nb_args = LOBYTE(HIWORD(idx));
|
|
struct relay_private_data *data = descr->private;
|
|
struct relay_entry_point *entry_point = data->entry_points + ordinal;
|
|
BYTE *orig_func = entry_point->orig_func;
|
|
INT_PTR *args = (INT_PTR *)context->Esp;
|
|
INT_PTR args_copy[32];
|
|
|
|
/* restore the context to what it was before the relay thunk */
|
|
context->Eax = orig_eax;
|
|
context->Eip = ret_addr;
|
|
context->Esp += nb_args * sizeof(int);
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
if (entry_point->name)
|
|
DPRINTF( "%04x:Call %s.%s(", GetCurrentThreadId(), data->dllname, entry_point->name );
|
|
else
|
|
DPRINTF( "%04x:Call %s.%u(", GetCurrentThreadId(), data->dllname, data->base + ordinal );
|
|
RELAY_PrintArgs( args, nb_args, descr->arg_types[ordinal] );
|
|
DPRINTF( ") ret=%08x\n", ret_addr );
|
|
|
|
DPRINTF( "%04x: eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x "
|
|
"ebp=%08x esp=%08x ds=%04x es=%04x fs=%04x gs=%04x flags=%08x\n",
|
|
GetCurrentThreadId(), context->Eax, context->Ebx, context->Ecx,
|
|
context->Edx, context->Esi, context->Edi, context->Ebp, context->Esp,
|
|
context->SegDs, context->SegEs, context->SegFs, context->SegGs, context->EFlags );
|
|
|
|
assert( orig_func[0] == 0x68 /* pushl func */ );
|
|
assert( orig_func[5] == 0x6a /* pushl args */ );
|
|
assert( orig_func[7] == 0xe8 /* call */ );
|
|
}
|
|
|
|
/* now call the real function */
|
|
|
|
memcpy( args_copy, args, nb_args * sizeof(args[0]) );
|
|
args_copy[nb_args++] = (INT_PTR)context; /* append context argument */
|
|
|
|
call_entry_point( orig_func + 12 + *(int *)(orig_func + 1), nb_args, args_copy, 0 );
|
|
|
|
if (TRACE_ON(relay))
|
|
{
|
|
if (entry_point->name)
|
|
DPRINTF( "%04x:Ret %s.%s() retval=%08x ret=%08x\n",
|
|
GetCurrentThreadId(), data->dllname, entry_point->name,
|
|
context->Eax, context->Eip );
|
|
else
|
|
DPRINTF( "%04x:Ret %s.%u() retval=%08x ret=%08x\n",
|
|
GetCurrentThreadId(), data->dllname, data->base + ordinal,
|
|
context->Eax, context->Eip );
|
|
DPRINTF( "%04x: eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x "
|
|
"ebp=%08x esp=%08x ds=%04x es=%04x fs=%04x gs=%04x flags=%08x\n",
|
|
GetCurrentThreadId(), context->Eax, context->Ebx, context->Ecx,
|
|
context->Edx, context->Esi, context->Edi, context->Ebp, context->Esp,
|
|
context->SegDs, context->SegEs, context->SegFs, context->SegGs, context->EFlags );
|
|
}
|
|
}
|
|
extern void WINAPI relay_call_regs(void);
|
|
DEFINE_REGS_ENTRYPOINT( relay_call_regs, 4 )
|
|
|
|
#elif defined(__arm__)
|
|
|
|
extern LONGLONG CDECL call_entry_point( void *func, int nb_args, const INT_PTR *args, int flags );
|
|
__ASM_GLOBAL_FUNC( call_entry_point,
|
|
".arm\n\t"
|
|
"push {r4, r5, LR}\n\t"
|
|
"mov r4, r0\n\t"
|
|
"mov r5, SP\n\t"
|
|
"lsl r3, r1, #2\n\t"
|
|
"cmp r3, #0\n\t"
|
|
"beq 5f\n\t"
|
|
"sub SP, SP, r3\n\t"
|
|
"tst r1, #1\n\t"
|
|
"subeq SP, SP, #4\n\t"
|
|
"1:\tsub r3, r3, #4\n\t"
|
|
"ldr r0, [r2, r3]\n\t"
|
|
"str r0, [SP, r3]\n\t"
|
|
"cmp r3, #0\n\t"
|
|
"bgt 1b\n\t"
|
|
"cmp r1, #1\n\t"
|
|
"bgt 2f\n\t"
|
|
"pop {r0}\n\t"
|
|
"b 5f\n\t"
|
|
"2:\tcmp r1, #2\n\t"
|
|
"bgt 3f\n\t"
|
|
"pop {r0-r1}\n\t"
|
|
"b 5f\n\t"
|
|
"3:\tcmp r1, #3\n\t"
|
|
"bgt 4f\n\t"
|
|
"pop {r0-r2}\n\t"
|
|
"b 5f\n\t"
|
|
"4:\tpop {r0-r3}\n\t"
|
|
"5:\tblx r4\n\t"
|
|
"mov SP, r5\n\t"
|
|
"pop {r4, r5, PC}" )
|
|
|
|
static LONGLONG WINAPI relay_call( struct relay_descr *descr, unsigned int idx, const INT_PTR *stack )
|
|
{
|
|
BYTE nb_args = LOBYTE(HIWORD(idx));
|
|
BYTE flags = HIBYTE(HIWORD(idx));
|
|
void *func = relay_trace_entry( descr, idx, stack );
|
|
LONGLONG ret = call_entry_point( func, nb_args, stack + 1, flags );
|
|
relay_trace_exit( descr, idx, stack, ret );
|
|
return ret;
|
|
}
|
|
|
|
static void WINAPI relay_call_regs( struct relay_descr *descr, INT_PTR idx, INT_PTR *stack )
|
|
{
|
|
assert(0); /* should never be called */
|
|
}
|
|
|
|
#elif defined(__x86_64__)
|
|
|
|
extern void * WINAPI relay_call( struct relay_descr *descr, unsigned int idx, const INT_PTR *stack );
|
|
__ASM_GLOBAL_FUNC( relay_call,
|
|
"pushq %rbp\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t")
|
|
__ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
|
|
"movq %rsp,%rbp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa_register %rbp\n\t")
|
|
"subq $0x30,%rsp\n\t"
|
|
"movq %rsi,0x20(%rsp)\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %rsi,-16\n\t")
|
|
"movq %rdi,0x28(%rsp)\n\t"
|
|
__ASM_CFI(".cfi_rel_offset %rdi,-8\n\t")
|
|
/* trace the parameters */
|
|
"movq %rcx,0x10(%rbp)\n\t"
|
|
"movq %rdx,0x18(%rbp)\n\t"
|
|
"movq %r8,0x20(%rbp)\n\t"
|
|
"call " __ASM_NAME("relay_trace_entry") "\n\t"
|
|
/* copy the arguments */
|
|
"movzbq 0x1a(%rbp),%rdx\n\t" /* number of args */
|
|
"movq $4,%rcx\n\t"
|
|
"cmp %rcx,%rdx\n\t"
|
|
"cmovgq %rdx,%rcx\n\t"
|
|
"leaq -16(,%rcx,8),%rdx\n\t"
|
|
"andq $~15,%rdx\n\t"
|
|
"subq %rdx,%rsp\n\t"
|
|
"movq 0x20(%rbp),%r8\n\t" /* original stack */
|
|
"leaq 8(%r8),%rsi\n\t"
|
|
"movq %rsp,%rdi\n\t"
|
|
"rep; movsq\n\t"
|
|
/* call the entry point */
|
|
"movq 0(%rsp),%rcx\n\t"
|
|
"movq 8(%rsp),%rdx\n\t"
|
|
"movq 16(%rsp),%r8\n\t"
|
|
"movq 24(%rsp),%r9\n\t"
|
|
"movq 0(%rsp),%xmm0\n\t"
|
|
"movq 8(%rsp),%xmm1\n\t"
|
|
"movq 16(%rsp),%xmm2\n\t"
|
|
"movq 24(%rsp),%xmm3\n\t"
|
|
"callq *%rax\n\t"
|
|
/* trace the return value */
|
|
"leaq -0x30(%rbp),%rsp\n\t"
|
|
"movq 0x10(%rbp),%rcx\n\t"
|
|
"movq 0x18(%rbp),%rdx\n\t"
|
|
"movq 0x20(%rbp),%r8\n\t"
|
|
"movq %rax,%rsi\n\t"
|
|
"movaps %xmm0,0x10(%rbp)\n\t"
|
|
"movq %rax,%r9\n\t"
|
|
"call " __ASM_NAME("relay_trace_exit") "\n\t"
|
|
/* restore return value and return */
|
|
"movq %rsi,%rax\n\t"
|
|
"movaps 0x10(%rbp),%xmm0\n\t"
|
|
"movq 0x20(%rsp),%rsi\n\t"
|
|
__ASM_CFI(".cfi_same_value %rsi\n\t")
|
|
"movq 0x28(%rsp),%rdi\n\t"
|
|
__ASM_CFI(".cfi_same_value %rdi\n\t")
|
|
"movq %rbp,%rsp\n\t"
|
|
__ASM_CFI(".cfi_def_cfa_register %rsp\n\t")
|
|
"popq %rbp\n\t"
|
|
__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
|
|
__ASM_CFI(".cfi_same_value %rbp\n\t")
|
|
"ret")
|
|
|
|
static void WINAPI relay_call_regs( struct relay_descr *descr, INT_PTR idx, INT_PTR *stack )
|
|
{
|
|
assert(0); /* should never be called */
|
|
}
|
|
|
|
#else
|
|
#error Not supported on this CPU
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
* RELAY_GetProcAddress
|
|
*
|
|
* Return the proc address to use for a given function.
|
|
*/
|
|
FARPROC RELAY_GetProcAddress( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
|
|
DWORD exp_size, FARPROC proc, DWORD ordinal, const WCHAR *user )
|
|
{
|
|
struct relay_private_data *data;
|
|
const struct relay_descr *descr = (const struct relay_descr *)((const char *)exports + exp_size);
|
|
|
|
if (descr->magic != RELAY_DESCR_MAGIC || !(data = descr->private)) return proc; /* no relay data */
|
|
if (!data->entry_points[ordinal].orig_func) return proc; /* not a relayed function */
|
|
if (check_from_module( debug_from_relay_includelist, debug_from_relay_excludelist, user ))
|
|
return proc; /* we want to relay it */
|
|
return data->entry_points[ordinal].orig_func;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* RELAY_SetupDLL
|
|
*
|
|
* Setup relay debugging for a built-in dll.
|
|
*/
|
|
void RELAY_SetupDLL( HMODULE module )
|
|
{
|
|
IMAGE_EXPORT_DIRECTORY *exports;
|
|
DWORD *funcs;
|
|
unsigned int i, len;
|
|
DWORD size, entry_point_rva;
|
|
struct relay_descr *descr;
|
|
struct relay_private_data *data;
|
|
const WORD *ordptr;
|
|
|
|
RtlRunOnceExecuteOnce( &init_once, init_debug_lists, NULL, NULL );
|
|
|
|
exports = RtlImageDirectoryEntryToData( module, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size );
|
|
if (!exports) return;
|
|
|
|
descr = (struct relay_descr *)((char *)exports + size);
|
|
if (descr->magic != RELAY_DESCR_MAGIC) return;
|
|
|
|
if (!(data = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) +
|
|
(exports->NumberOfFunctions-1) * sizeof(data->entry_points) )))
|
|
return;
|
|
|
|
descr->relay_call = relay_call;
|
|
descr->relay_call_regs = relay_call_regs;
|
|
descr->private = data;
|
|
|
|
data->module = module;
|
|
data->base = exports->Base;
|
|
len = strlen( (char *)module + exports->Name );
|
|
if (len > 4 && !strcasecmp( (char *)module + exports->Name + len - 4, ".dll" )) len -= 4;
|
|
len = min( len, sizeof(data->dllname) - 1 );
|
|
memcpy( data->dllname, (char *)module + exports->Name, len );
|
|
data->dllname[len] = 0;
|
|
|
|
/* fetch name pointer for all entry points and store them in the private structure */
|
|
|
|
ordptr = (const WORD *)((char *)module + exports->AddressOfNameOrdinals);
|
|
for (i = 0; i < exports->NumberOfNames; i++, ordptr++)
|
|
{
|
|
DWORD name_rva = ((DWORD*)((char *)module + exports->AddressOfNames))[i];
|
|
data->entry_points[*ordptr].name = (const char *)module + name_rva;
|
|
}
|
|
|
|
/* patch the functions in the export table to point to the relay thunks */
|
|
|
|
funcs = (DWORD *)((char *)module + exports->AddressOfFunctions);
|
|
entry_point_rva = descr->entry_point_base - (const char *)module;
|
|
for (i = 0; i < exports->NumberOfFunctions; i++, funcs++)
|
|
{
|
|
if (!descr->entry_point_offsets[i]) continue; /* not a normal function */
|
|
if (!check_relay_include( data->dllname, i + exports->Base, data->entry_points[i].name ))
|
|
continue; /* don't include this entry point */
|
|
|
|
data->entry_points[i].orig_func = (char *)module + *funcs;
|
|
*funcs = entry_point_rva + descr->entry_point_offsets[i];
|
|
}
|
|
}
|
|
|
|
#else /* __i386__ || __x86_64__ || __arm__ */
|
|
|
|
FARPROC RELAY_GetProcAddress( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports,
|
|
DWORD exp_size, FARPROC proc, DWORD ordinal, const WCHAR *user )
|
|
{
|
|
return proc;
|
|
}
|
|
|
|
void RELAY_SetupDLL( HMODULE module )
|
|
{
|
|
}
|
|
|
|
#endif /* __i386__ || __x86_64__ || __arm__ */
|
|
|
|
|
|
/***********************************************************************/
|
|
/* snoop support */
|
|
/***********************************************************************/
|
|
|
|
#ifdef __i386__
|
|
|
|
WINE_DECLARE_DEBUG_CHANNEL(seh);
|
|
WINE_DECLARE_DEBUG_CHANNEL(snoop);
|
|
|
|
#include "pshpack1.h"
|
|
|
|
typedef struct
|
|
{
|
|
/* code part */
|
|
BYTE lcall; /* 0xe8 call snoopentry (relative) */
|
|
/* NOTE: If you move snoopentry OR nrofargs fix the relative offset
|
|
* calculation!
|
|
*/
|
|
DWORD snoopentry; /* SNOOP_Entry relative */
|
|
/* unreached */
|
|
int nrofargs;
|
|
FARPROC origfun;
|
|
const char *name;
|
|
} SNOOP_FUN;
|
|
|
|
typedef struct tagSNOOP_DLL {
|
|
HMODULE hmod;
|
|
SNOOP_FUN *funs;
|
|
DWORD ordbase;
|
|
DWORD nrofordinals;
|
|
struct tagSNOOP_DLL *next;
|
|
char name[1];
|
|
} SNOOP_DLL;
|
|
|
|
typedef struct
|
|
{
|
|
/* code part */
|
|
BYTE lcall; /* 0xe8 call snoopret relative*/
|
|
/* NOTE: If you move snoopret OR origreturn fix the relative offset
|
|
* calculation!
|
|
*/
|
|
DWORD snoopret; /* SNOOP_Ret relative */
|
|
/* unreached */
|
|
FARPROC origreturn;
|
|
SNOOP_DLL *dll;
|
|
DWORD ordinal;
|
|
DWORD origESP;
|
|
DWORD *args; /* saved args across a stdcall */
|
|
} SNOOP_RETURNENTRY;
|
|
|
|
typedef struct tagSNOOP_RETURNENTRIES {
|
|
SNOOP_RETURNENTRY entry[4092/sizeof(SNOOP_RETURNENTRY)];
|
|
struct tagSNOOP_RETURNENTRIES *next;
|
|
} SNOOP_RETURNENTRIES;
|
|
|
|
#include "poppack.h"
|
|
|
|
extern void WINAPI SNOOP_Entry(void);
|
|
extern void WINAPI SNOOP_Return(void);
|
|
|
|
static SNOOP_DLL *firstdll;
|
|
static SNOOP_RETURNENTRIES *firstrets;
|
|
|
|
|
|
/***********************************************************************
|
|
* SNOOP_ShowDebugmsgSnoop
|
|
*
|
|
* Simple function to decide if a particular debugging message is
|
|
* wanted.
|
|
*/
|
|
static BOOL SNOOP_ShowDebugmsgSnoop(const char *module, int ordinal, const char *func)
|
|
{
|
|
if (debug_snoop_excludelist && check_list( module, ordinal, func, debug_snoop_excludelist ))
|
|
return FALSE;
|
|
if (debug_snoop_includelist && !check_list( module, ordinal, func, debug_snoop_includelist ))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SNOOP_SetupDLL
|
|
*
|
|
* Setup snoop debugging for a native dll.
|
|
*/
|
|
void SNOOP_SetupDLL(HMODULE hmod)
|
|
{
|
|
SNOOP_DLL **dll = &firstdll;
|
|
char *p, *name;
|
|
void *addr;
|
|
SIZE_T size;
|
|
ULONG size32;
|
|
IMAGE_EXPORT_DIRECTORY *exports;
|
|
|
|
RtlRunOnceExecuteOnce( &init_once, init_debug_lists, NULL, NULL );
|
|
|
|
exports = RtlImageDirectoryEntryToData( hmod, TRUE, IMAGE_DIRECTORY_ENTRY_EXPORT, &size32 );
|
|
if (!exports || !exports->NumberOfFunctions) return;
|
|
name = (char *)hmod + exports->Name;
|
|
size = size32;
|
|
|
|
TRACE_(snoop)("hmod=%p, name=%s\n", hmod, name);
|
|
|
|
while (*dll) {
|
|
if ((*dll)->hmod == hmod)
|
|
{
|
|
/* another dll, loaded at the same address */
|
|
addr = (*dll)->funs;
|
|
size = (*dll)->nrofordinals * sizeof(SNOOP_FUN);
|
|
NtFreeVirtualMemory(NtCurrentProcess(), &addr, &size, MEM_RELEASE);
|
|
break;
|
|
}
|
|
dll = &((*dll)->next);
|
|
}
|
|
if (*dll)
|
|
*dll = RtlReAllocateHeap(GetProcessHeap(),
|
|
HEAP_ZERO_MEMORY, *dll,
|
|
sizeof(SNOOP_DLL) + strlen(name));
|
|
else
|
|
*dll = RtlAllocateHeap(GetProcessHeap(),
|
|
HEAP_ZERO_MEMORY,
|
|
sizeof(SNOOP_DLL) + strlen(name));
|
|
(*dll)->hmod = hmod;
|
|
(*dll)->ordbase = exports->Base;
|
|
(*dll)->nrofordinals = exports->NumberOfFunctions;
|
|
strcpy( (*dll)->name, name );
|
|
p = (*dll)->name + strlen((*dll)->name) - 4;
|
|
if (p > (*dll)->name && !strcasecmp( p, ".dll" )) *p = 0;
|
|
|
|
size = exports->NumberOfFunctions * sizeof(SNOOP_FUN);
|
|
addr = NULL;
|
|
NtAllocateVirtualMemory(NtCurrentProcess(), &addr, 0, &size,
|
|
MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
|
|
if (!addr) {
|
|
RtlFreeHeap(GetProcessHeap(),0,*dll);
|
|
FIXME("out of memory\n");
|
|
return;
|
|
}
|
|
(*dll)->funs = addr;
|
|
memset((*dll)->funs,0,size);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SNOOP_GetProcAddress
|
|
*
|
|
* Return the proc address to use for a given function.
|
|
*/
|
|
FARPROC SNOOP_GetProcAddress( HMODULE hmod, const IMAGE_EXPORT_DIRECTORY *exports,
|
|
DWORD exp_size, FARPROC origfun, DWORD ordinal,
|
|
const WCHAR *user)
|
|
{
|
|
unsigned int i;
|
|
const char *ename;
|
|
const WORD *ordinals;
|
|
const DWORD *names;
|
|
SNOOP_DLL *dll = firstdll;
|
|
SNOOP_FUN *fun;
|
|
const IMAGE_SECTION_HEADER *sec;
|
|
|
|
if (!TRACE_ON(snoop)) return origfun;
|
|
if (!check_from_module( debug_from_snoop_includelist, debug_from_snoop_excludelist, user ))
|
|
return origfun; /* the calling module was explicitly excluded */
|
|
|
|
if (!*(LPBYTE)origfun) /* 0x00 is an impossible opcode, possible dataref. */
|
|
return origfun;
|
|
|
|
sec = RtlImageRvaToSection( RtlImageNtHeader(hmod), hmod, (char *)origfun - (char *)hmod );
|
|
|
|
if (!sec || !(sec->Characteristics & IMAGE_SCN_CNT_CODE))
|
|
return origfun; /* most likely a data reference */
|
|
|
|
while (dll) {
|
|
if (hmod == dll->hmod)
|
|
break;
|
|
dll = dll->next;
|
|
}
|
|
if (!dll) /* probably internal */
|
|
return origfun;
|
|
|
|
/* try to find a name for it */
|
|
ename = NULL;
|
|
names = (const DWORD *)((const char *)hmod + exports->AddressOfNames);
|
|
ordinals = (const WORD *)((const char *)hmod + exports->AddressOfNameOrdinals);
|
|
if (names) for (i = 0; i < exports->NumberOfNames; i++)
|
|
{
|
|
if (ordinals[i] == ordinal)
|
|
{
|
|
ename = (const char *)hmod + names[i];
|
|
break;
|
|
}
|
|
}
|
|
if (!SNOOP_ShowDebugmsgSnoop(dll->name,ordinal,ename))
|
|
return origfun;
|
|
assert(ordinal < dll->nrofordinals);
|
|
fun = dll->funs + ordinal;
|
|
if (!fun->name)
|
|
{
|
|
fun->name = ename;
|
|
fun->lcall = 0xe8;
|
|
/* NOTE: origreturn struct member MUST come directly after snoopentry */
|
|
fun->snoopentry = (char*)SNOOP_Entry-((char*)(&fun->nrofargs));
|
|
fun->origfun = origfun;
|
|
fun->nrofargs = -1;
|
|
}
|
|
return (FARPROC)&(fun->lcall);
|
|
}
|
|
|
|
static void SNOOP_PrintArg(DWORD x)
|
|
{
|
|
int i,nostring;
|
|
|
|
DPRINTF("%08x",x);
|
|
if (IS_INTARG(x) || TRACE_ON(seh)) return; /* trivial reject to avoid faults */
|
|
__TRY
|
|
{
|
|
LPBYTE s=(LPBYTE)x;
|
|
i=0;nostring=0;
|
|
while (i<80) {
|
|
if (s[i]==0) break;
|
|
if (s[i]<0x20) {nostring=1;break;}
|
|
if (s[i]>=0x80) {nostring=1;break;}
|
|
i++;
|
|
}
|
|
if (!nostring && i > 5)
|
|
DPRINTF(" %s",debugstr_an((LPSTR)x,i));
|
|
else /* try unicode */
|
|
{
|
|
LPWSTR s=(LPWSTR)x;
|
|
i=0;nostring=0;
|
|
while (i<80) {
|
|
if (s[i]==0) break;
|
|
if (s[i]<0x20) {nostring=1;break;}
|
|
if (s[i]>0x100) {nostring=1;break;}
|
|
i++;
|
|
}
|
|
if (!nostring && i > 5) DPRINTF(" %s",debugstr_wn((LPWSTR)x,i));
|
|
}
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
}
|
|
__ENDTRY
|
|
}
|
|
|
|
#define CALLER1REF (*(DWORD*)context->Esp)
|
|
|
|
void WINAPI __regs_SNOOP_Entry( CONTEXT *context )
|
|
{
|
|
DWORD ordinal=0,entry = context->Eip - 5;
|
|
SNOOP_DLL *dll = firstdll;
|
|
SNOOP_FUN *fun = NULL;
|
|
SNOOP_RETURNENTRIES **rets = &firstrets;
|
|
SNOOP_RETURNENTRY *ret;
|
|
int i=0, max;
|
|
|
|
while (dll) {
|
|
if ( ((char*)entry>=(char*)dll->funs) &&
|
|
((char*)entry<=(char*)(dll->funs+dll->nrofordinals))
|
|
) {
|
|
fun = (SNOOP_FUN*)entry;
|
|
ordinal = fun-dll->funs;
|
|
break;
|
|
}
|
|
dll=dll->next;
|
|
}
|
|
if (!dll) {
|
|
FIXME("entrypoint 0x%08x not found\n",entry);
|
|
return; /* oops */
|
|
}
|
|
/* guess cdecl ... */
|
|
if (fun->nrofargs<0) {
|
|
/* Typical cdecl return frame is:
|
|
* add esp, xxxxxxxx
|
|
* which has (for xxxxxxxx up to 255 the opcode "83 C4 xx".
|
|
* (after that 81 C2 xx xx xx xx)
|
|
*/
|
|
LPBYTE reteip = (LPBYTE)CALLER1REF;
|
|
|
|
if (reteip) {
|
|
if ((reteip[0]==0x83)&&(reteip[1]==0xc4))
|
|
fun->nrofargs=reteip[2]/4;
|
|
}
|
|
}
|
|
|
|
|
|
while (*rets) {
|
|
for (i=0;i<sizeof((*rets)->entry)/sizeof((*rets)->entry[0]);i++)
|
|
if (!(*rets)->entry[i].origreturn)
|
|
break;
|
|
if (i!=sizeof((*rets)->entry)/sizeof((*rets)->entry[0]))
|
|
break;
|
|
rets = &((*rets)->next);
|
|
}
|
|
if (!*rets) {
|
|
SIZE_T size = 4096;
|
|
VOID* addr = NULL;
|
|
|
|
NtAllocateVirtualMemory(NtCurrentProcess(), &addr, 0, &size,
|
|
MEM_COMMIT | MEM_RESERVE,
|
|
PAGE_EXECUTE_READWRITE);
|
|
if (!addr) return;
|
|
*rets = addr;
|
|
memset(*rets,0,4096);
|
|
i = 0; /* entry 0 is free */
|
|
}
|
|
ret = &((*rets)->entry[i]);
|
|
ret->lcall = 0xe8;
|
|
/* NOTE: origreturn struct member MUST come directly after snoopret */
|
|
ret->snoopret = ((char*)SNOOP_Return)-(char*)(&ret->origreturn);
|
|
ret->origreturn = (FARPROC)CALLER1REF;
|
|
CALLER1REF = (DWORD)&ret->lcall;
|
|
ret->dll = dll;
|
|
ret->args = NULL;
|
|
ret->ordinal = ordinal;
|
|
ret->origESP = context->Esp;
|
|
|
|
context->Eip = (DWORD)fun->origfun;
|
|
|
|
if (TRACE_ON(timestamp))
|
|
print_timestamp();
|
|
if (fun->name) DPRINTF("%04x:CALL %s.%s(",GetCurrentThreadId(),dll->name,fun->name);
|
|
else DPRINTF("%04x:CALL %s.%d(",GetCurrentThreadId(),dll->name,dll->ordbase+ordinal);
|
|
if (fun->nrofargs>0) {
|
|
max = fun->nrofargs; if (max>16) max=16;
|
|
for (i=0;i<max;i++)
|
|
{
|
|
SNOOP_PrintArg(*(DWORD*)(context->Esp + 4 + sizeof(DWORD)*i));
|
|
if (i<fun->nrofargs-1) DPRINTF(",");
|
|
}
|
|
if (max!=fun->nrofargs)
|
|
DPRINTF(" ...");
|
|
} else if (fun->nrofargs<0) {
|
|
DPRINTF("<unknown, check return>");
|
|
ret->args = RtlAllocateHeap(GetProcessHeap(),
|
|
0,16*sizeof(DWORD));
|
|
memcpy(ret->args,(LPBYTE)(context->Esp + 4),sizeof(DWORD)*16);
|
|
}
|
|
DPRINTF(") ret=%08x\n",(DWORD)ret->origreturn);
|
|
}
|
|
|
|
|
|
void WINAPI __regs_SNOOP_Return( CONTEXT *context )
|
|
{
|
|
SNOOP_RETURNENTRY *ret = (SNOOP_RETURNENTRY*)(context->Eip - 5);
|
|
SNOOP_FUN *fun = &ret->dll->funs[ret->ordinal];
|
|
|
|
/* We haven't found out the nrofargs yet. If we called a cdecl
|
|
* function it is too late anyway and we can just set '0' (which
|
|
* will be the difference between orig and current ESP
|
|
* If stdcall -> everything ok.
|
|
*/
|
|
if (ret->dll->funs[ret->ordinal].nrofargs<0)
|
|
ret->dll->funs[ret->ordinal].nrofargs=(context->Esp - ret->origESP-4)/4;
|
|
context->Eip = (DWORD)ret->origreturn;
|
|
if (TRACE_ON(timestamp))
|
|
print_timestamp();
|
|
if (ret->args) {
|
|
int i,max;
|
|
|
|
if (fun->name)
|
|
DPRINTF("%04x:RET %s.%s(", GetCurrentThreadId(), ret->dll->name, fun->name);
|
|
else
|
|
DPRINTF("%04x:RET %s.%d(", GetCurrentThreadId(),
|
|
ret->dll->name,ret->dll->ordbase+ret->ordinal);
|
|
|
|
max = fun->nrofargs;
|
|
if (max>16) max=16;
|
|
|
|
for (i=0;i<max;i++)
|
|
{
|
|
SNOOP_PrintArg(ret->args[i]);
|
|
if (i<max-1) DPRINTF(",");
|
|
}
|
|
DPRINTF(") retval=%08x ret=%08x\n",
|
|
context->Eax,(DWORD)ret->origreturn );
|
|
RtlFreeHeap(GetProcessHeap(),0,ret->args);
|
|
ret->args = NULL;
|
|
}
|
|
else
|
|
{
|
|
if (fun->name)
|
|
DPRINTF("%04x:RET %s.%s() retval=%08x ret=%08x\n",
|
|
GetCurrentThreadId(),
|
|
ret->dll->name, fun->name, context->Eax, (DWORD)ret->origreturn);
|
|
else
|
|
DPRINTF("%04x:RET %s.%d() retval=%08x ret=%08x\n",
|
|
GetCurrentThreadId(),
|
|
ret->dll->name,ret->dll->ordbase+ret->ordinal,
|
|
context->Eax, (DWORD)ret->origreturn);
|
|
}
|
|
ret->origreturn = NULL; /* mark as empty */
|
|
}
|
|
|
|
/* assembly wrappers that save the context */
|
|
DEFINE_REGS_ENTRYPOINT( SNOOP_Entry, 0 )
|
|
DEFINE_REGS_ENTRYPOINT( SNOOP_Return, 0 )
|
|
|
|
#else /* __i386__ */
|
|
|
|
FARPROC SNOOP_GetProcAddress( HMODULE hmod, const IMAGE_EXPORT_DIRECTORY *exports, DWORD exp_size,
|
|
FARPROC origfun, DWORD ordinal, const WCHAR *user )
|
|
{
|
|
return origfun;
|
|
}
|
|
|
|
void SNOOP_SetupDLL( HMODULE hmod )
|
|
{
|
|
FIXME("snooping works only on i386 for now.\n");
|
|
}
|
|
|
|
#endif /* __i386__ */
|