CODEX_Server::InternalVerifier Class Reference

This is a short-lived server that runs the protocol to establish a connecting server's identity. More...

#include <InternalVerifier.h>

Inheritance diagram for CODEX_Server::InternalVerifier:

[legend]Collaboration diagram for CODEX_Server::InternalVerifier:

[legend]List of all members.

Public Member Functions
	InternalVerifier (int port, const CODEX_Quorum::SocketBuilder &socketBuilder, CODEX_Quorum::SocketBase *socket)
	Constructor.
virtual	~InternalVerifier ()
	Virtual destructor.
void	disable ()
	Override the default.
void	processRequest (CODEX_Quorum::SocketBase::StateType s)
virtual void	enable ()
	Create a socket and begin listening.
int	port () const
	The port on which the server is listening.
virtual int	set_fd (fd_set *fd_bitmap, SocketBase::StateType s)
	Set the bitmap for this socket.
virtual bool	isset_fd (const fd_set *fd_bitmap, SocketBase::StateType s)
	Whether the bitmap is set for this socket.
virtual void	processRequest (SocketBase::StateType s)=0
	Process incoming requests.
Protected Member Functions
SocketBase *	socket () const
	Returns the socket on which this server is listening.
const SocketBuilder &	builder () const
	Returns the SocketBuilder for this server.
void	setSocket (SocketBase *socket)
	Set a SocketBase for this server.

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Detailed Description

This is a short-lived server that runs the protocol to establish a connecting server's identity.

The protocol is a simple challenge-response, with this local server denoted L and the remote server R.

1. L selects a random nonce n and sends it to R.
2. R composes a message containing its name and n, which it signs and returns to L. Including the nonce prevents replay attacks.

Definition at line 37 of file InternalVerifier.h.

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Constructor & Destructor Documentation

InternalVerifier::InternalVerifier (  int  port, const CODEX_Quorum::SocketBuilder &  socketBuilder, CODEX_Quorum::SocketBase *  socket )

Constructor. Parameters: port  The port on which to listen. socketBuilder  Not used, but required by base class. socket  An already-configured socket for the connection. Definition at line 26 of file InternalVerifier.cc. References CODEX_Server::ServerState::addServer(), CODEX_Server::ServerState::instance(), and CODEX_Quorum::LocalServer::setSocket().

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Member Function Documentation

const SocketBuilder& CODEX_Quorum::LocalServer::builder (   )  const [inline, protected, inherited]

Returns the SocketBuilder for this server. Definition at line 120 of file LocalServer.h. Referenced by CODEX_KeyService::ClientServer::processRequest().

void LocalServer::enable (   )  [virtual, inherited]

Create a socket and begin listening. Derived classes should reimplement this to perform other service initialization tasks needed. This base-class version should be called explicitly, to ensure the necessary base class initialization. Definition at line 41 of file LocalServer.cc. References CODEX_Quorum::SocketBase::setup().

bool LocalServer::isset_fd (  const fd_set *  fd_bitmap, SocketBase::StateType  s )  [virtual, inherited]

Whether the bitmap is set for this socket. Some types of sockets may need to know the operation being tested. Definition at line 76 of file LocalServer.cc. References CODEX_Quorum::SocketBase::isset_fd().

virtual void CODEX_Quorum::LocalServer::processRequest (  SocketBase::StateType  s  )  [pure virtual, inherited]

Process incoming requests. Derived classes must implement this routine, which is called whenever a connection is made. Attention: No further connections may be handled, nor any other actions taken, until this function returns. Consequently, if you do not want your program to block on a request, you must implement some concurrency mechanism, such as an event model or threads. This class makes no assumptions about concurrency. Implemented in CODEX_Quorum::EchoServer.

int LocalServer::set_fd (  fd_set *  fd_bitmap, SocketBase::StateType  s )  [virtual, inherited]

Set the bitmap for this socket. Some types of sockets may need to know the operation being tested. Definition at line 69 of file LocalServer.cc. References CODEX_Quorum::SocketBase::set_fd().

void CODEX_Quorum::LocalServer::setSocket (  SocketBase *  socket  )  [inline, protected, inherited]

Set a SocketBase for this server. Useful for servers that clone themselves. Definition at line 126 of file LocalServer.h. References CODEX_Quorum::LocalServer::socket(). Referenced by CODEX_KeyService::ClientActivity::ClientActivity(), and InternalVerifier().

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

• InternalVerifier.h
• InternalVerifier.cc

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