/***************************************************************************
* EchoServer.h -- *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
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* The Nmap Security Scanner is (C) 1996-2012 Insecure.Com LLC. Nmap is *
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***************************************************************************/
#ifndef __ECHOSERVER_H__
#define __ECHOSERVER_H__ 1
#include "nping.h"
#include "nsock.h"
#include <vector>
#include "NEPContext.h"
using namespace std;
#define LISTEN_QUEUE_SIZE 10
class EchoServer {
private:
/* Attributes */
vector<NEPContext> client_ctx;
clientid_t client_id_count;
/* Methods */
int nep_listen_socket();
int addClientContext(NEPContext ctx);
NEPContext *getClientContext(clientid_t clnt);
NEPContext *getClientContext(nsock_iod iod);
int destroyClientContext(clientid_t clnt);
nsock_iod getClientNsockIOD(clientid_t clnt);
clientid_t getNewClientID();
clientid_t nep_match_packet(const u8 *pkt, size_t pktlen);
clientid_t nep_match_headers(IPv4Header *ip4, IPv6Header *ip6, TCPHeader *tcp, UDPHeader *udp, ICMPv4Header *icmp4, RawData *payload);
int parse_hs_client(u8 *pkt, size_t pktlen, NEPContext *ctx);
int parse_packet_spec(u8 *pkt, size_t pktlen, NEPContext *ctx);
int generate_hs_server(EchoHeader *h, NEPContext *ctx);
int generate_hs_final(EchoHeader *h, NEPContext *ctx);
int generate_ready(EchoHeader *h, NEPContext *ctx);
int generate_echo(EchoHeader *h, const u8 *pkt, size_t pktlen, NEPContext *ctx);
public:
EchoServer();
~EchoServer();
void reset();
int start();
int cleanup();
int nep_capture_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_echo_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_hs_server_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_hs_client_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_hs_final_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_packetspec_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_ready_handler(nsock_pool nsp, nsock_event nse, void *param);
int nep_session_ended_handler(nsock_pool nsp, nsock_event nse, void *param);
}; /* End of class EchoServer */
typedef struct handler_arg{
EchoServer *me;
void *param;
} handler_arg_t;
/* Handler wrappers */
void capture_handler(nsock_pool nsp, nsock_event nse, void *arg);
void echo_handler(nsock_pool nsp, nsock_event nse, void *arg);
void hs_server_handler(nsock_pool nsp, nsock_event nse, void *arg);
void hs_client_handler(nsock_pool nsp, nsock_event nse, void *arg);
void hs_final_handler(nsock_pool nsp, nsock_event nse, void *arg);
void packetspec_handler(nsock_pool nsp, nsock_event nse, void *arg);
void ready_handler(nsock_pool nsp, nsock_event nse, void *arg);
void empty_handler(nsock_pool nsp, nsock_event nse, void *arg);
void session_ended_handler(nsock_pool nsp, nsock_event nse, void *arg);
#endif /* __ECHOSERVER_H__ */