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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:cindent:textwidth=0:
*
* Copyright (C) 2005 Dell Inc.
* by Michael Brown <Michael_E_Brown@dell.com>
* Licensed under the Open Software License version 2.1
*
* Alternatively, you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
* This program 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 General Public License for more details.
*/
// compat header should always be first header if including system headers
#define LIBSMBIOS_SOURCE
#include "smbios/compat.h"
#include <iomanip>
#include <string.h>
#include "TokenImpl.h"
#include "smbios/ISmi.h"
#define TODO do { throw NotImplementedImpl(); } while(0)
using namespace std;
#if defined(DEBUG_TOKEN_DA)
# define DCOUT(line) do { cout << line; } while(0)
# define DCERR(line) do { cerr << line; } while(0)
#else
# define DCOUT(line) do {} while(0)
# define DCERR(line) do {} while(0)
#endif
namespace smbios
{
SmiTokenDA::SmiTokenDA( const smbios::ISmbiosItem &initItem, const calling_interface_token *initToken )
: IToken(), ISmiToken(), IProtectedToken(), item(initItem.clone()), password("")
{
memcpy( const_cast<calling_interface_token *>(&token), initToken, sizeof(token) );
size_t size;
const u8 *ptr = item->getBufferCopy(size) ; // MUST DELETE[]!
memcpy( const_cast<calling_interface_structure*>(&structure), ptr, sizeof(structure) );
delete [] const_cast<u8 *>(ptr); //const_cast to fix msvc++
}
// no dynamically allocated memory, yay!
SmiTokenDA::~SmiTokenDA() throw()
{}
string SmiTokenDA::getTokenClass() const
{
return "TokenDA";
}
u32 SmiTokenDA::getValueFormat() const
{
return 0xFFFFFFFF;
}
bool SmiTokenDA::tryPassword(std::string pw) const
{
// can't really validate password without retrying operation
password = pw;
return true;
}
const ISmbiosItem &SmiTokenDA::getItemRef() const
{
return *item;
}
void SmiTokenDA::getSmiDetails( u16 *cmdIOAddress, u8 *cmdIOCode, u8 *location ) const
{
if (cmdIOAddress)
*cmdIOAddress = structure.cmdIOAddress;
if (cmdIOCode)
*cmdIOCode = structure.cmdIOCode;
if (location)
*location = token.location;
}
u32 SmiTokenDA::getType() const
{
return token.tokenId;
}
bool SmiTokenDA::isActive() const
{
bool ret = false;
DCERR("reading token: " << static_cast<u32>(token.location) << " compare with value: " << static_cast<u32>(token.value) << " actual: " << smi::readNVStorage(token.location, 0, 0) << endl);
if (token.value == smi::readNVStorage(token.location, 0, 0))
ret = true;
return ret;
}
static void executeWithPassword(smi::IDellCallingInterfaceSmi *ci, u8 arg, string password)
{
for(int i=0; i<2; i++)
{
try
{
ci->execute();
break;
}
catch(const smi::SmiExecutedWithError &)
{
// on second time through, just pass exception upwards.
if(i==1)
throw;
//cout << "Caught error. Might be bad password. Trying password: " << password << endl;
ci->setArg( arg, smi::getAuthenticationKey(password));
}
}
}
void SmiTokenDA::activate() const
{
DCERR("trying to activate token: " << static_cast<u32>(token.location) << " with value: " << static_cast<u32>(token.value) << endl);
smi::writeNVStorage(password, token.location, token.value, 0, 0);
}
bool SmiTokenDA::isString() const
{
return true;
}
bool SmiTokenDA::isBool() const
{
return true;
}
const string SmiTokenDA::getString(u8 *byteArray, unsigned int size ) const
{
std::auto_ptr<smi::IDellCallingInterfaceSmi> smi = smi::SmiFactory::getFactory()->makeNew(smi::SmiFactory::DELL_CALLING_INTERFACE_SMI);
smi::IDellCallingInterfaceSmi *ci = dynamic_cast<smi::IDellCallingInterfaceSmi *>(smi.get());
ci->setClass( 0x0 ); /* Read Non-Volatile Storage class code */
ci->setSelect( 0x0 ); /* Read Non-Volatile Storage select code */
ci->setArg( 0, token.location );
ci->execute();
// first word is data. ignore high bits.
u16 word = static_cast<u16>(ci->getRes(1));
if(byteArray && size >= 2)
{
memset(byteArray, 0, size);
memcpy(byteArray, &word, sizeof(u16));
}
char ret[3]={0};
memcpy(ret, &word, sizeof(u16));
return ret; //automatically converted to std::string
}
void SmiTokenDA::setString( const u8 *byteArray, size_t size ) const
{
if( size < 2 )
return;
std::auto_ptr<smi::IDellCallingInterfaceSmi> smi = smi::SmiFactory::getFactory()->makeNew(smi::SmiFactory::DELL_CALLING_INTERFACE_SMI);
smi::IDellCallingInterfaceSmi *ci = dynamic_cast<smi::IDellCallingInterfaceSmi *>(smi.get());
ci->setClass( 0x1 ); /* Read Non-Volatile Storage class code */
ci->setSelect( 0x0 ); /* Read Non-Volatile Storage select code */
ci->setArg( 0, token.location );
ci->setArg( 1, *reinterpret_cast<const u16 *>(byteArray) );
executeWithPassword(ci, 2, password);
}
unsigned int SmiTokenDA::getStringLength() const
{
// pretend all SMI tokens are one word
return 2;
}
std::ostream & SmiTokenDA::streamify( std::ostream & cout ) const
{
std::ios::fmtflags old_opts = cout.flags ();
cout << hex << setfill('0');
cout << "DMI type 0x" << setw(2) << static_cast<int>(structure.type);
cout << " Handle 0x" << setw(4) << static_cast<int>(structure.handle);
cout << " CmdIO Port 0x" << setw(4) << static_cast<int>(structure.cmdIOAddress);
cout << " CmdIO Code 0x" << setw(2) << static_cast<int>(structure.cmdIOCode);
cout << " Type 0x" << setw(4) << static_cast<int>(getType());
cout << " Location 0x" << setw(4) << static_cast<int>(token.location);
cout << " value " << setw(4) << static_cast<int>(token.value);
cout.flags (old_opts);
return cout;
}
}
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