/[dynamips]/trunk/eth_switch.h
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Contents of /trunk/eth_switch.h

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Revision 12 - (show annotations)
Sat Oct 6 16:45:40 2007 UTC (12 years ago) by dpavlin
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1 /*
2 * Cisco router simulation platform.
3 * Copyright (c) 2006 Christophe Fillot (cf@utc.fr)
4 *
5 * Virtual Ethernet switch definitions.
6 */
7
8 #ifndef __ETH_SWITCH_H__
9 #define __ETH_SWITCH_H__
10
11 #include <pthread.h>
12
13 #include "utils.h"
14 #include "net.h"
15 #include "net_io.h"
16
17 /* Hash entries for the MAC address table */
18 #define ETHSW_HASH_SIZE 4096
19
20 /* Maximum port number */
21 #define ETHSW_MAX_NIO 64
22
23 /* Maximum packet size */
24 #define ETHSW_MAX_PKT_SIZE 2048
25
26 /* Port types: access or 802.1Q */
27 enum {
28 ETHSW_PORT_TYPE_ACCESS = 1,
29 ETHSW_PORT_TYPE_DOT1Q,
30 ETHSW_PORT_TYPE_ISL,
31 };
32
33 /* Received packet */
34 typedef struct ethsw_packet ethsw_packet_t;
35 struct ethsw_packet {
36 u_char *pkt;
37 ssize_t pkt_len;
38 netio_desc_t *input_port;
39 u_int input_vlan;
40 int input_tag;
41 };
42
43 /* MAC address table entry */
44 typedef struct ethsw_mac_entry ethsw_mac_entry_t;
45 struct ethsw_mac_entry {
46 netio_desc_t *nio;
47 n_eth_addr_t mac_addr;
48 m_uint16_t vlan_id;
49 };
50
51 /* Virtual Ethernet switch */
52 typedef struct ethsw_table ethsw_table_t;
53 struct ethsw_table {
54 char *name;
55 pthread_mutex_t lock;
56 int debug;
57
58 /* Virtual Ports */
59 netio_desc_t *nio[ETHSW_MAX_NIO];
60
61 /* MAC address table */
62 ethsw_mac_entry_t mac_addr_table[ETHSW_HASH_SIZE];
63 };
64
65 /* Packet input vector */
66 typedef void (*ethsw_input_vector_t)(ethsw_table_t *t,ethsw_packet_t *sp,
67 netio_desc_t *output_port);
68
69 /* "foreach" vector */
70 typedef void (*ethsw_foreach_entry_t)(ethsw_table_t *t,
71 ethsw_mac_entry_t *entry,
72 void *opt);
73
74 #define ETHSW_LOCK(t) pthread_mutex_lock(&(t)->lock)
75 #define ETHSW_UNLOCK(t) pthread_mutex_unlock(&(t)->lock)
76
77 /* Acquire a reference to an Ethernet switch (increment reference count) */
78 ethsw_table_t *ethsw_acquire(char *name);
79
80 /* Release an Ethernet switch (decrement reference count) */
81 int ethsw_release(char *name);
82
83 /* Create a virtual ethernet switch */
84 ethsw_table_t *ethsw_create(char *name);
85
86 /* Add a NetIO descriptor to a virtual ethernet switch */
87 int ethsw_add_netio(ethsw_table_t *t,char *nio_name);
88
89 /* Remove a NetIO descriptor from a virtual ethernet switch */
90 int ethsw_remove_netio(ethsw_table_t *t,char *nio_name);
91
92 /* Clear the MAC address table */
93 int ethsw_clear_mac_addr_table(ethsw_table_t *t);
94
95 /* Iterate over all entries of the MAC address table */
96 int ethsw_iterate_mac_addr_table(ethsw_table_t *t,ethsw_foreach_entry_t cb,
97 void *opt_arg);
98
99 /* Set port as an access port */
100 int ethsw_set_access_port(ethsw_table_t *t,char *nio_name,u_int vlan_id);
101
102 /* Set port as a 802.1q trunk port */
103 int ethsw_set_dot1q_port(ethsw_table_t *t,char *nio_name,u_int native_vlan);
104
105 /* Save the configuration of a switch */
106 void ethsw_save_config(ethsw_table_t *t,FILE *fd);
107
108 /* Save configurations of all Ethernet switches */
109 void ethsw_save_config_all(FILE *fd);
110
111 /* Delete a virtual ethernet switch */
112 int ethsw_delete(char *name);
113
114 /* Delete all virtual ethernet switches */
115 int ethsw_delete_all(void);
116
117 /* Start a virtual Ethernet switch */
118 int ethsw_start(char *filename);
119
120 #endif

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