bool test_01_masking( )
{
char mask[4];
int mask_value;
char buffer[1024];
LES_SSL_Context* ctx;
/* clear buffer */
memset( buffer , 0 , 1024 );
/* create context */
ctx = les_ssl_context_new( );
mask_value = rand( );
printf( "Test-01 masking: using masking value %d\n" , mask_value );
set_32bit( mask_value , mask );
memcpy( buffer , "This is a test value" , 20 );
les_ssl_conn_mask_content( ctx , buffer , 20 , mask , 0 );
if( strncmp( buffer , "This is a test value" , 20 ) == 0 )
{
printf( "ERROR: expected to find different values after masking but found the same..\n" );
return false;
}
///* revert changes */
les_ssl_conn_mask_content( ctx , buffer , 20 , mask , 0 );
if( strncmp( buffer , "This is a test value" , 20 ) != 0 )
{
printf( "ERROR: expected to find SAME values after masking but found the same..\n" );
return false;
} /* end if */
/* now check transfering these values to the mask */
if( get_32bit( mask ) != mask_value )
{
printf( "ERROR: found failure while reading the mask from from buffer..\n" );
return false;
}
printf( "Test 01 masking: found mask in the buffer %d == %d\n" ,
get_32bit( mask ) , mask_value );
les_ssl_ctx_unref( ctx );
return true;
}
/*
* 模式说明
* 1、MODE_ARMOP_Code -> 使用ARM指令修改CODE
* 2、MODE_ARMOP_SysCall -> 注释系统调用
*/
int Arm_Moudle(int inFlag){
static int Mode_Bit = MODE_ARMOPC32_JMP;
static int ModeOption = 0;
ea_t _ThisEa = get_screen_ea();
if (inFlag != Flag_Again)
if (AskUsingForm_c(ASK_ARM_UI, &ModeOption) == 0)
return NULL;
if (MODE_ARMOP_Code == ModeOption){
if (inFlag != Flag_Again)
if (AskUsingForm_c(ASK_CODE_UI, &Mode_Bit) == 0)
return NULL;
if (MODE_ARMOPC16_JMP == Mode_Bit){
_ThisEa &= 0xFFFFFFFE;
patch_long(_ThisEa, 0xE7FE);
}
else if (MODE_ARMOPC16_NOP == Mode_Bit){
_ThisEa &= 0xFFFFFFFE;
patch_word(_ThisEa, 0xC046);
}
else if (MODE_ARMOPC32_JMP == Mode_Bit){
_ThisEa &= 0xFFFFFFFC;
patch_long(_ThisEa, 0xEAFFFFFE);
}
else if (MODE_ARMOPC32_NOP == Mode_Bit){
_ThisEa &= 0xFFFFFFFC;
patch_long(_ThisEa, 0xE1A00000);
}
}
else if(MODE_ARMOP_SysCall == ModeOption){
//自动获取，
ulong Sys_No = get_32bit(get_screen_ea()) & 0xFFF;
if (AskUsingForm_c(ASK_SYSCALL_UI, &Sys_No) == 0)return 0;
if (SysCall::getName(Sys_No) != NULL){
set_cmt(get_screen_ea(), SysCall::getName(Sys_No), 1);
}
}
return NULL;
}
BOOL get_vtbl_info(ea_t ea_address, VTBL_info_t &vtbl_info)
{
flags_t flags = getFlags(ea_address);
if (!(hasRef(flags) || has_any_name(flags) && (isDwrd(flags) || isUnknown(flags))))
return(FALSE);
else
{
BOOL is_move_xref = FALSE;
ea_t ea_code_ref = get_first_dref_to(ea_address);
if (ea_code_ref && (ea_code_ref != BADADDR))
{
do
{
if (isCode(getFlags(ea_code_ref)))
{
LPCTSTR disasm_line = get_text_disasm(ea_code_ref);
#ifndef __EA64__
if ((*((PUINT)disasm_line) == 0x20766F6D /*"mov "*/) && (strstr(disasm_line + 4, " offset ") != NULL))
#else
if ((*((PUINT)disasm_line) == 0x2061656c /*"lea "*/) && (strstr(disasm_line + 4, "rcx") != NULL) && (strstr(disasm_line + 4, "const") != NULL))
#endif
{
is_move_xref = TRUE;
break;
}
}
ea_code_ref = get_next_dref_to(ea_address, ea_code_ref);
} while (ea_code_ref && (ea_code_ref != BADADDR));
}
if (!is_move_xref)
return(FALSE);
ZeroMemory(&vtbl_info, sizeof(VTBL_info_t));
// get_name(BADADDR, ea_address, vtbl_info.vtbl_name, (MAXSTR - 1));
f_get_ea_name(&vtbl_info.vtbl_name, ea_address);
ea_t ea_start = vtbl_info.ea_begin = ea_address;
while (TRUE)
{
flags_t index_flags = getFlags(ea_address);
#ifndef __EA64__
if (!(hasValue(index_flags) && (isDwrd(index_flags) || isUnknown(index_flags))))
#else
if (!(hasValue(index_flags) && (isQwrd(index_flags) || isUnknown(index_flags))))
#endif
break;
#ifndef __EA64__
ea_t ea_index_value = get_32bit(ea_address);
#else
ea_t ea_index_value = get_64bit(ea_address);
#endif
if (!(ea_index_value && (ea_index_value != BADADDR)))
break;
if (ea_address != ea_start)
if (hasRef(index_flags))
break;
flags_t value_flags = getFlags(ea_index_value);
if (!isCode(value_flags))
break;
else
if (isUnknown(index_flags))
#ifndef __EA64__
doDwrd(ea_address, sizeof(DWORD));
ea_address += sizeof(UINT);
#else
doQwrd(ea_address, sizeof(UINT64));
ea_address += sizeof(UINT64);
#endif
};
#ifndef __EA64__
if ((vtbl_info.methods = ((ea_address - ea_start) / sizeof(UINT))) > 0)
#else
if((vtbl_info.methods = ((ea_address - ea_start) / sizeof(UINT64))) > 0)
#endif
{
vtbl_info.ea_end = ea_address;
return(TRUE);
}
else
return(FALSE);
}
}