CATempIPBlockList Class Reference

The purpose of this class is storing the IPs of JAP users who tried to hack/attack the payment system. More...

Public Member Functions
	CATempIPBlockList (UINT64 validTimeMillis)
	~CATempIPBlockList ()
SINT32	insertIP (const UINT8 ip[4])
	inserts an IP into the blocklist More...
SINT32	checkIP (const UINT8 ip[4])
	check whether an IP is blocked More...
void	setValidTimeMillis (UINT64 millis)
	set the time (in Milliseconds) that each blocked IP should stay valid in the list More...
UINT32	count ()

Static Private Member Functions
static THREAD_RETURN	cleanupThreadMainLoop (void *param)
	the cleanup thread main loop More...

Private Attributes
volatile bool	m_bRunCleanupThread
	as long as true the clenaupthread does his job. More...
CAThread *	m_pCleanupThread
	this thread cleans up the hashtable and removes old entries More...
UINT64	m_validTimeMillis
	the time that each blocked IP should stay in the List More...
PTEMPIPBLOCKLIST *	m_hashTable
	the buffer where the entries are stored More...
CAMutex *	m_pMutex
	Used for locking the datastructure to make it threadsafe. More...
UINT32	m_iEntries

Detailed Description

The purpose of this class is storing the IPs of JAP users who tried to hack/attack the payment system.

Their IP should stay in this block list for a limited time period (e.g. 10 minutes or so). During this time a JAP cannot connect to the mixcascade from this IP.

The implementation uses Mutex locking and is thus threadsafe

Author

Bastian Voigt bavoi.nosp@m.gt@i.nosp@m.nf.fu.nosp@m.-ber.nosp@m.lin.d.nosp@m.e

Constructor & Destructor Documentation

CATempIPBlockList()

CATempIPBlockList::CATempIPBlockList

(

UINT64

validTimeMillis

)

References cleanupThreadMainLoop(), m_bRunCleanupThread, m_hashTable, m_iEntries, m_pCleanupThread, m_pMutex, m_validTimeMillis, CAThread::setMainLoop(), and CAThread::start().

~CATempIPBlockList()

CATempIPBlockList::~CATempIPBlockList

(

)

References CAThread::join(), CAMutex::lock(), m_bRunCleanupThread, m_hashTable, m_pCleanupThread, m_pMutex, _tempipblocklist_t::next, CAMsg::printMsg(), and CAMutex::unlock().

Member Function Documentation

checkIP()

SINT32 CATempIPBlockList::checkIP

(

const UINT8

ip[4]

)

check whether an IP is blocked

Return values

1,if	the IP is blocked
0,if	the IP is not blocked
E_SUCCESS,if	the IP is not blocked
E_UNKNOWN,if	the IP is blocked

References E_SUCCESS, E_UNKNOWN, getcurrentTimeMillis(), _tempipblocklist_t::ip, CAMutex::lock(), m_hashTable, m_iEntries, m_pMutex, _tempipblocklist_t::next, CAMutex::unlock(), and _tempipblocklist_t::validTimeMillis.

cleanupThreadMainLoop()

THREAD_RETURN CATempIPBlockList::cleanupThreadMainLoop ( void *  param )

staticprivate

the cleanup thread main loop

References BEGIN_STACK, CLEANUP_THREAD_SLEEP_INTERVAL, FINISH_STACK, getcurrentTimeMillis(), INIT_STACK, CAMutex::lock(), m_bRunCleanupThread, m_hashTable, m_iEntries, m_pMutex, _tempipblocklist_t::next, CAMsg::printMsg(), sSleep(), THREAD_RETURN_SUCCESS, CAMutex::unlock(), and _tempipblocklist_t::validTimeMillis.

Referenced by CATempIPBlockList().

count()

UINT32 CATempIPBlockList::count

(

)

References m_iEntries.

insertIP()

SINT32 CATempIPBlockList::insertIP

(

const UINT8

ip[4]

)

inserts an IP into the blocklist

Return values

E_SUCCESS	if successful
E_UNKNOWN	if IP was already in blocklist

References E_SUCCESS, E_UNKNOWN, getcurrentTimeMillis(), _tempipblocklist_t::ip, CAMutex::lock(), m_hashTable, m_iEntries, m_pMutex, m_validTimeMillis, _tempipblocklist_t::next, CAMutex::unlock(), and _tempipblocklist_t::validTimeMillis.

Referenced by CAFirstMix::doUserLogin_internal().

setValidTimeMillis()

void CATempIPBlockList::setValidTimeMillis

(

UINT64

millis

)

set the time (in Milliseconds) that each blocked IP should stay valid in the list

Member Data Documentation

m_bRunCleanupThread

volatile bool CATempIPBlockList::m_bRunCleanupThread

private

as long as true the clenaupthread does his job.

If false the thread will exit.

Referenced by CATempIPBlockList(), cleanupThreadMainLoop(), and ~CATempIPBlockList().

m_hashTable

PTEMPIPBLOCKLIST* CATempIPBlockList::m_hashTable

private

the buffer where the entries are stored

Referenced by CATempIPBlockList(), checkIP(), cleanupThreadMainLoop(), insertIP(), and ~CATempIPBlockList().

m_iEntries

UINT32 CATempIPBlockList::m_iEntries

private

Referenced by CATempIPBlockList(), checkIP(), cleanupThreadMainLoop(), count(), and insertIP().

m_pCleanupThread

CAThread* CATempIPBlockList::m_pCleanupThread

private

this thread cleans up the hashtable and removes old entries

Referenced by CATempIPBlockList(), and ~CATempIPBlockList().

m_pMutex

CAMutex* CATempIPBlockList::m_pMutex

private

Used for locking the datastructure to make it threadsafe.

Referenced by CATempIPBlockList(), checkIP(), cleanupThreadMainLoop(), insertIP(), and ~CATempIPBlockList().

m_validTimeMillis

UINT64 CATempIPBlockList::m_validTimeMillis

private

the time that each blocked IP should stay in the List

Referenced by CATempIPBlockList(), and insertIP().