ipv4_routing.h

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#ifndef _IPV4_ROUTING_H
#define _IPV4_ROUTING_H
 
//Dependencies
#include "core/net.h"
#include "ipv4/ipv4.h"
 
//IPv4 routing support
#ifndef IPV4_ROUTING_SUPPORT
   #define IPV4_ROUTING_SUPPORT DISABLED
#elif (IPV4_ROUTING_SUPPORT != ENABLED && IPV4_ROUTING_SUPPORT != DISABLED)
   #error IPV4_ROUTING_SUPPORT parameter is not valid
#endif
 
//Size of the IPv4 routing table
#ifndef IPV4_ROUTING_TABLE_SIZE
   #define IPV4_ROUTING_TABLE_SIZE 8
#elif (IPV4_ROUTING_TABLE_SIZE < 1)
   #error IPV4_ROUTING_TABLE_SIZE parameter is not valid
#endif
 
//C++ guard
#ifdef __cplusplus
extern "C" {
#endif
 
 
typedef struct
{
   bool_t valid;            
   Ipv4Addr networkDest;    
   Ipv4Addr networkMask;    
   NetInterface *interface; 
   Ipv4Addr nextHop;        
   uint_t metric;           
} Ipv4RoutingTableEntry;
 
 
//IPv4 routing related functions
error_t ipv4InitRouting(void);
error_t ipv4EnableRouting(NetInterface *interface, bool_t enable);
 
error_t ipv4AddRoute(Ipv4Addr networkDest, Ipv4Addr networkMask,
   NetInterface *interface, Ipv4Addr nextHop, uint_t metric);
 
error_t ipv4DeleteRoute(Ipv4Addr networkDest, Ipv4Addr networkMask);
error_t ipv4DeleteAllRoutes(void);
 
error_t ipv4ForwardPacket(NetInterface *srcInterface, const NetBuffer *ipPacket,
   size_t ipPacketOffset);
 
//C++ guard
#ifdef __cplusplus
}
#endif
 
#endif