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/*
* Cisco router simulation platform.
* Copyright (c) 2006 Christophe Fillot (cf@utc.fr)
*
* Virtual Ethernet switch definitions.
*/
#ifndef __ETH_SWITCH_H__
#define __ETH_SWITCH_H__
#include <pthread.h>
#include "utils.h"
#include "net.h"
#include "net_io.h"
/* Hash entries for the MAC address table */
#define ETHSW_HASH_SIZE 4096
/* Maximum port number */
#define ETHSW_MAX_NIO 64
/* Maximum packet size */
#define ETHSW_MAX_PKT_SIZE 2048
/* Port types: access or 802.1Q */
enum {
ETHSW_PORT_TYPE_ACCESS = 1,
ETHSW_PORT_TYPE_DOT1Q,
ETHSW_PORT_TYPE_ISL,
};
/* Received packet */
typedef struct ethsw_packet ethsw_packet_t;
struct ethsw_packet {
u_char *pkt;
ssize_t pkt_len;
netio_desc_t *input_port;
u_int input_vlan;
int input_tag;
};
/* MAC address table entry */
typedef struct ethsw_mac_entry ethsw_mac_entry_t;
struct ethsw_mac_entry {
netio_desc_t *nio;
n_eth_addr_t mac_addr;
m_uint16_t vlan_id;
};
/* Virtual Ethernet switch */
typedef struct ethsw_table ethsw_table_t;
struct ethsw_table {
char *name;
pthread_mutex_t lock;
int debug;
/* Virtual Ports */
netio_desc_t *nio[ETHSW_MAX_NIO];
/* MAC address table */
ethsw_mac_entry_t mac_addr_table[ETHSW_HASH_SIZE];
};
/* Packet input vector */
typedef void (*ethsw_input_vector_t)(ethsw_table_t *t,ethsw_packet_t *sp,
netio_desc_t *output_port);
/* "foreach" vector */
typedef void (*ethsw_foreach_entry_t)(ethsw_table_t *t,
ethsw_mac_entry_t *entry,
void *opt);
#define ETHSW_LOCK(t) pthread_mutex_lock(&(t)->lock)
#define ETHSW_UNLOCK(t) pthread_mutex_unlock(&(t)->lock)
/* Acquire a reference to an Ethernet switch (increment reference count) */
ethsw_table_t *ethsw_acquire(char *name);
/* Release an Ethernet switch (decrement reference count) */
int ethsw_release(char *name);
/* Create a virtual ethernet switch */
ethsw_table_t *ethsw_create(char *name);
/* Add a NetIO descriptor to a virtual ethernet switch */
int ethsw_add_netio(ethsw_table_t *t,char *nio_name);
/* Remove a NetIO descriptor from a virtual ethernet switch */
int ethsw_remove_netio(ethsw_table_t *t,char *nio_name);
/* Clear the MAC address table */
int ethsw_clear_mac_addr_table(ethsw_table_t *t);
/* Iterate over all entries of the MAC address table */
int ethsw_iterate_mac_addr_table(ethsw_table_t *t,ethsw_foreach_entry_t cb,
void *opt_arg);
/* Set port as an access port */
int ethsw_set_access_port(ethsw_table_t *t,char *nio_name,u_int vlan_id);
/* Set port as a 802.1q trunk port */
int ethsw_set_dot1q_port(ethsw_table_t *t,char *nio_name,u_int native_vlan);
/* Save the configuration of a switch */
void ethsw_save_config(ethsw_table_t *t,FILE *fd);
/* Save configurations of all Ethernet switches */
void ethsw_save_config_all(FILE *fd);
/* Delete a virtual ethernet switch */
int ethsw_delete(char *name);
/* Delete all virtual ethernet switches */
int ethsw_delete_all(void);
/* Start a virtual Ethernet switch */
int ethsw_start(char *filename);
#endif
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