port_mapping.h

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#pragma once
 
#include <cstdint>
#include <string>
#include <functional>
 
namespace librats {
 
enum class PortMapProtocol : uint8_t {
    TCP,
    UDP
};
 
enum class PortMapTransport : uint8_t {
    UPnP,
    NatPMP
};
 
inline const char* to_string(PortMapProtocol p) {
    return p == PortMapProtocol::TCP ? "TCP" : "UDP";
}
 
inline const char* to_string(PortMapTransport t) {
    return t == PortMapTransport::UPnP ? "UPnP" : "NAT-PMP";
}
 
struct PortMapResult {
    PortMapTransport transport;          
    PortMapProtocol  protocol;           
    bool             success = false;    
    uint16_t         internal_port = 0;  
    uint16_t         external_port = 0;  
    std::string      external_ip;        
    std::string      error;              
};
 
using PortMapCallback = std::function<void(const PortMapResult&)>;
 
struct PortMappingConfig {
    bool enabled = true;                  
    bool enable_upnp = true;              
    bool enable_natpmp = true;            
    uint32_t lease_duration_seconds = 3600; 
};
 
} // namespace librats