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/*
* Copyright (c) 2010 SURFnet bv
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*****************************************************************************
ObjectStore.h
The object store manages the separate tokens that the SoftHSM supports. Each
token is organised as a directory containing files that are contain the
token's objects. The object store is initialised with a root directory from
which it enumerates the tokens.
*****************************************************************************/
#include "config.h"
#include "log.h"
#include "ObjectStore.h"
#include "Directory.h"
#include "ObjectStoreToken.h"
#include "OSPathSep.h"
#include "UUID.h"
#include <stdio.h>
// Constructor
ObjectStore::ObjectStore(std::string inStorePath)
{
storePath = inStorePath;
valid = false;
storeMutex = MutexFactory::i()->getMutex();
MutexLocker lock(storeMutex);
// Find all tokens in the specified path
Directory storeDir(storePath);
if (!storeDir.isValid())
{
WARNING_MSG("Failed to enumerate object store in %s", storePath.c_str());
return;
}
// Assume that all subdirectories are tokens
std::vector<std::string> dirs = storeDir.getSubDirs();
for (std::vector<std::string>::iterator i = dirs.begin(); i != dirs.end(); i++)
{
// Create a token instance
ObjectStoreToken* token = ObjectStoreToken::accessToken(storePath, *i);
if (!token->isValid())
{
ERROR_MSG("Failed to open token %s", i->c_str());
delete token;
// Silently ignore tokens that we do not have access to
continue;
}
tokens.push_back(token);
allTokens.push_back(token);
}
valid = true;
}
// Destructor
ObjectStore::~ObjectStore()
{
{
MutexLocker lock(storeMutex);
// Clean up
tokens.clear();
for (std::vector<ObjectStoreToken*>::iterator i = allTokens.begin(); i != allTokens.end(); i++)
{
delete *i;
}
}
MutexFactory::i()->recycleMutex(storeMutex);
}
// Check if the object store is valid
bool ObjectStore::isValid()
{
return valid;
}
// Return the number of tokens that is present
size_t ObjectStore::getTokenCount()
{
MutexLocker lock(storeMutex);
return tokens.size();
}
// Return a pointer to the n-th token (counting starts at 0)
ObjectStoreToken* ObjectStore::getToken(size_t whichToken)
{
MutexLocker lock(storeMutex);
if (whichToken >= tokens.size())
{
return NULL;
}
return tokens[whichToken];
}
// Create a new token
ObjectStoreToken* ObjectStore::newToken(const ByteString& label)
{
MutexLocker lock(storeMutex);
// Generate a UUID for the token
std::string tokenUUID = UUID::newUUID();
// Convert the UUID to a serial number
std::string serialNumber = tokenUUID.substr(19, 4) + tokenUUID.substr(24);
ByteString serial((const unsigned char*) serialNumber.c_str(), serialNumber.size());
// Create the token
ObjectStoreToken* newToken = ObjectStoreToken::createToken(storePath, tokenUUID, label, serial);
if (newToken != NULL)
{
tokens.push_back(newToken);
allTokens.push_back(newToken);
}
return newToken;
}
// Destroy a token
bool ObjectStore::destroyToken(ObjectStoreToken *token)
{
MutexLocker lock(storeMutex);
// Find the token
for (std::vector<ObjectStoreToken*>::iterator i = tokens.begin(); i != tokens.end(); i++)
{
if (*i == token)
{
// Found the token, now destroy the token
if (!token->clearToken())
{
ERROR_MSG("Failed to clear token instance");
return false;
}
// And remove it from the vector
tokens.erase(i);
return true;
}
}
ERROR_MSG("Could not find the token instance to destroy");
return false;
}
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