RakNet::MessageFilter Class Reference
[MessageFilter]

Assigns systems to FilterSets. Each FilterSet limits what kinds of messages are allowed. More...

#include <MessageFilter.h>

Inheritance diagram for RakNet::MessageFilter:

RakNet::PluginInterface2

List of all members.

Public Member Functions

void SetAutoAddNewConnectionsToFilter (int filterSetID)
void SetAllowMessageID (bool allow, int messageIDStart, int messageIDEnd, int filterSetID)
void SetAllowRPC4 (bool allow, const char *uniqueID, int filterSetID)
void SetActionOnDisallowedMessage (bool kickOnDisallowed, bool banOnDisallowed, RakNet::TimeMS banTimeMS, int filterSetID)
void SetDisallowedMessageCallback (int filterSetID, void *userData, void(*invalidMessageCallback)(RakPeerInterface *peer, AddressOrGUID addressOrGUID, int filterSetID, void *userData, unsigned char messageID))
void SetTimeoutCallback (int filterSetID, void *userData, void(*invalidMessageCallback)(RakPeerInterface *peer, AddressOrGUID addressOrGUID, int filterSetID, void *userData))
void SetFilterMaxTime (int allowedTimeMS, bool banOnExceed, RakNet::TimeMS banTimeMS, int filterSetID)
int GetSystemFilterSet (AddressOrGUID addressOrGUID)
void SetSystemFilterSet (AddressOrGUID addressOrGUID, int filterSetID)
unsigned GetSystemCount (int filterSetID) const
unsigned GetFilterSetCount (void) const
int GetFilterSetIDByIndex (unsigned index)
void DeleteFilterSet (int filterSetID)
virtual void Update (void)
 Update is called every time a packet is checked for .
virtual PluginReceiveResult OnReceive (Packet *packet)
virtual void OnNewConnection (const SystemAddress &systemAddress, RakNetGUID rakNetGUID, bool isIncoming)
virtual void OnClosedConnection (const SystemAddress &systemAddress, RakNetGUID rakNetGUID, PI2_LostConnectionReason lostConnectionReason)


Detailed Description

Assigns systems to FilterSets. Each FilterSet limits what kinds of messages are allowed.

The MessageFilter plugin is used for security where you limit what systems can send what kind of messages.
You implicitly define FilterSets, and add allowed message IDs to these FilterSets.
You then add systems to these filters, such that those systems are limited to sending what the filters allows.
You can automatically assign systems to a filter.
You can automatically kick and possibly ban users that stay in a filter too long, or send the wrong message.
Each system is a member of either zero or one filters.
Add this plugin before any plugin you wish to filter (most likely just add this plugin before any other).


Member Function Documentation

void RakNet::MessageFilter::DeleteFilterSet ( int  filterSetID  ) 

Delete a FilterSet. All systems formerly subscribed to this filter are now unrestricted.

Parameters:
[in] filterSetID The ID of the filter set to delete.

unsigned RakNet::MessageFilter::GetFilterSetCount ( void   )  const

Returns the total number of filter sets.

Returns:
The total number of filter sets.

int RakNet::MessageFilter::GetFilterSetIDByIndex ( unsigned  index  ) 

Returns the ID of a filter set, by index

Parameters:
[in] An index between 0 and GetFilterSetCount()-1 inclusive

unsigned RakNet::MessageFilter::GetSystemCount ( int  filterSetID  )  const

Returns the number of systems subscribed to a particular filter set Using anything other than -1 for filterSetID is slow, so you should store the returned value.

Parameters:
[in] filterSetID The filter set to limit to. Use -1 for none (just returns the total number of filter systems in that case).

int RakNet::MessageFilter::GetSystemFilterSet ( AddressOrGUID  addressOrGUID  ) 

Get the filterSetID a system is using. Returns -1 for none.

Parameters:
[in] addressOrGUID The system we are referring to

virtual void RakNet::MessageFilter::OnClosedConnection ( const SystemAddress systemAddress,
RakNetGUID  rakNetGUID,
PI2_LostConnectionReason  lostConnectionReason 
) [virtual]

Called when a connection is dropped because the user called RakPeer::CloseConnection() for a particular system

Parameters:
[in] systemAddress The system whose connection was closed
[in] rakNetGuid The guid of the specified system
[in] lostConnectionReason How the connection was closed: manually, connection lost, or notification of disconnection

Reimplemented from RakNet::PluginInterface2.

virtual void RakNet::MessageFilter::OnNewConnection ( const SystemAddress systemAddress,
RakNetGUID  rakNetGUID,
bool  isIncoming 
) [virtual]

Called when we got a new connection

Parameters:
[in] systemAddress Address of the new connection
[in] rakNetGuid The guid of the specified system
[in] isIncoming If true, this is ID_NEW_INCOMING_CONNECTION, or the equivalent

Reimplemented from RakNet::PluginInterface2.

virtual PluginReceiveResult RakNet::MessageFilter::OnReceive ( Packet packet  )  [virtual]

OnReceive is called for every packet.

Parameters:
[in] packet the packet that is being returned to the user
Returns:
True to allow the game and other plugins to get this message, false to absorb it

Reimplemented from RakNet::PluginInterface2.

void RakNet::MessageFilter::SetActionOnDisallowedMessage ( bool  kickOnDisallowed,
bool  banOnDisallowed,
RakNet::TimeMS  banTimeMS,
int  filterSetID 
)

What action to take on a disallowed message. You can kick or not. You can add them to the ban list for some time By default no action is taken. The message is simply ignored. param[in] 0 for permanent ban, >0 for ban time in milliseconds.

Parameters:
[in] kickOnDisallowed kick the system that sent a disallowed message.
[in] banOnDisallowed ban the system that sent a disallowed message. See banTimeMS for the ban duration
[in] banTimeMS Passed to the milliseconds parameter of RakPeer::AddToBanList.
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.

void RakNet::MessageFilter::SetAllowMessageID ( bool  allow,
int  messageIDStart,
int  messageIDEnd,
int  filterSetID 
)

Allow a range of message IDs Always allowed by default: ID_CONNECTION_REQUEST_ACCEPTED through ID_DOWNLOAD_PROGRESS Usually you specify a range to make it easier to add new enumerations without having to constantly refer back to this function.

Parameters:
[in] allow True to allow this message ID, false to disallow. By default, all messageIDs except the noted types are disallowed. This includes messages from other plugins!
[in] messageIDStart The first ID_* message to allow in the range. Inclusive.
[in] messageIDEnd The last ID_* message to allow in the range. Inclusive.
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.

void RakNet::MessageFilter::SetAllowRPC4 ( bool  allow,
const char *  uniqueID,
int  filterSetID 
)

Allow a specific RPC4 call

Precondition:
MessageFilter must be attached before RPC4
Parameters:
[in] uniqueID Identifier passed to RegisterFunction()
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.

void RakNet::MessageFilter::SetAutoAddNewConnectionsToFilter ( int  filterSetID  ) 

Automatically add all new systems to a particular filter Defaults to -1

Parameters:
[in] filterSetID Which filter to add new systems to. <0 for do not add.

void RakNet::MessageFilter::SetDisallowedMessageCallback ( int  filterSetID,
void *  userData,
void(*)(RakPeerInterface *peer, AddressOrGUID addressOrGUID, int filterSetID, void *userData, unsigned char messageID)  invalidMessageCallback 
)

Set a user callback to be called on an invalid message for a particular filterSet

Parameters:
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.
[in] userData A pointer passed with the callback
[in] invalidMessageCallback A pointer to a C function to be called back with the specified parameters.

void RakNet::MessageFilter::SetFilterMaxTime ( int  allowedTimeMS,
bool  banOnExceed,
RakNet::TimeMS  banTimeMS,
int  filterSetID 
)

Limit how long a connection can stay in a particular filterSetID. After this time, the connection is kicked and possibly banned. By default there is no limit to how long a connection can stay in a particular filter set.

Parameters:
[in] allowedTimeMS How many milliseconds to allow a connection to stay in this filter set.
[in] banOnExceed True or false to ban the system, or not, when allowedTimeMS is exceeded
[in] banTimeMS Passed to the milliseconds parameter of RakPeer::AddToBanList.
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.

void RakNet::MessageFilter::SetSystemFilterSet ( AddressOrGUID  addressOrGUID,
int  filterSetID 
)

Assign a system to a filter set. Systems are automatically added to filter sets (or not) based on SetAutoAddNewConnectionsToFilter() This function is used to change the filter set a system is using, to add it to a new filter set, or to remove it from all existin filter sets.

Parameters:
[in] addressOrGUID The system we are referring to
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings. If -1, the system will be removed from all filter sets.

void RakNet::MessageFilter::SetTimeoutCallback ( int  filterSetID,
void *  userData,
void(*)(RakPeerInterface *peer, AddressOrGUID addressOrGUID, int filterSetID, void *userData)  invalidMessageCallback 
)

Set a user callback to be called when a user is disconnected due to SetFilterMaxTime

Parameters:
[in] filterSetID A user defined ID to represent a filter set. If no filter with this ID exists, one will be created with default settings.
[in] userData A pointer passed with the callback
[in] invalidMessageCallback A pointer to a C function to be called back with the specified parameters.


The documentation for this class was generated from the following file:

Generated on Wed Feb 1 13:33:47 2012 for RakNet by  doxygen 1.5.7.1