NATify.h

#if !defined(AFX_NATIFY_H__B8FF4369_8789_4674_8569_3D52CE8CA890__INCLUDED_)
#define AFX_NATIFY_H__B8FF4369_8789_4674_8569_3D52CE8CA890__INCLUDED_
 
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
 
 
#define NATIFY_COOKIE       777
#define NATIFY_TIMEOUT      10000
#define NATIFY_STATUS_STEPS (NATIFY_TIMEOUT / 1000) + 7
 
typedef enum { packet_map1a, packet_map2, packet_map3, packet_map1b, NUM_PACKETS } NatifyPacket;
typedef enum { no_nat, firewall_only, full_cone, restricted_cone, port_restricted_cone, symmetric, unknown, NUM_NAT_TYPES } NatType;
typedef enum { promiscuous, not_promiscuous, port_promiscuous, ip_promiscuous, promiscuity_not_applicable, NUM_PROMISCUITY_TYPES } NatPromiscuity;
typedef enum { unrecognized, private_as_public, consistent_port, incremental, mixed, NUM_MAPPING_SCHEMES } NatMappingScheme;
 
typedef struct _AddressMapping {
    unsigned int privateIp;
    unsigned short privatePort;
    unsigned int publicIp;
    unsigned short publicPort;
} AddressMapping;
 
typedef struct _NAT {
    char brand[32];
    char model[32];
    char firmware[64];
    gsi_bool ipRestricted;
    gsi_bool portRestricted;
    NatPromiscuity promiscuity;
    NatType natType;
    NatMappingScheme mappingScheme;
    AddressMapping mappings[4];
    gsi_bool qr2Compatible;
} NAT;
 
int DiscoverReachability(SOCKET sock, unsigned int ip, unsigned short port, int portType);
int DiscoverMapping(SOCKET sock, unsigned int ip, unsigned short port, int portType, int id);
int NatifyThink(SOCKET sock, NAT * nat);
gsi_bool DetermineNatType(NAT * nat);
void OutputMapping(const AddressMapping * theMap);
 
 
#endif // !defined(AFX_NATIFY_H__B8FF4369_8789_4674_8569_3D52CE8CA890__INCLUDED_)