sr_if.h

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/*-----------------------------------------------------------------------------
 * file:  sr_if.h
 * date:  Sun Oct 06 14:13:13 PDT 2002 
 * Contact: casado@stanford.edu 
 *---------------------------------------------------------------------------*/

/** \file
 * Data structures and methods for handeling interfaces
 * */

#ifndef sr_INTERFACE_H
#define sr_INTERFACE_H

#ifdef _LINUX_
#include <stdint.h>
#endif /* _LINUX_ */

#ifdef _SOLARIS_
#include </usr/include/sys/int_types.h>
#endif /* SOLARIS */

#ifdef _DARWIN_
#include <inttypes.h>
#endif

#include "sr_protocol.h"

struct sr_instance;

/* ----------------------------------------------------------------------------
 * struct sr_if
 *
 * Node in the interface list for each router
 *
 * -------------------------------------------------------------------------- */
/** A node in the interface list of the router. 
 * The interface is stored as a linked list.*/
struct sr_if
{
  char name[sr_IFACE_NAMELEN]; /**< The name of the interface*/
  unsigned char addr[ETHER_ADDR_LEN]; /**< The MAC address of the interface */
  uint32_t ip; /**< The IP address of the interface */
  uint32_t speed;
  struct sr_if* next; /**< The next interface in the linked list */
};

/** Searches the interface list to find the interface with the given name.
 *
 * If no such interface exists, returns NULL.
 * @param sr The router instance.
 * @param name The name of the requested interface.
 */
struct sr_if* sr_get_interface(struct sr_instance* sr, const char* name);
void sr_add_interface(struct sr_instance*, const char*);
void sr_set_ether_addr(struct sr_instance*, const unsigned char*);
void sr_set_ether_ip(struct sr_instance*, uint32_t ip_nbo);

/** Prints the interface list*/
void sr_print_if_list(struct sr_instance*);
/** Prints the given interface*/
void sr_print_if(struct sr_if*);

#endif /* --  sr_INTERFACE_H -- */