netrom.h
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上传日期:2013-02-24
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文件大小:6k
- /*
- * Declarations of NET/ROM type objects.
- *
- * Jonathan Naylor G4KLX 9/4/95
- */
- #ifndef _NETROM_H
- #define _NETROM_H
- #include <linux/netrom.h>
- #define NR_NETWORK_LEN 15
- #define NR_TRANSPORT_LEN 5
- #define NR_PROTO_IP 0x0C
- #define NR_PROTOEXT 0x00
- #define NR_CONNREQ 0x01
- #define NR_CONNACK 0x02
- #define NR_DISCREQ 0x03
- #define NR_DISCACK 0x04
- #define NR_INFO 0x05
- #define NR_INFOACK 0x06
- #define NR_CHOKE_FLAG 0x80
- #define NR_NAK_FLAG 0x40
- #define NR_MORE_FLAG 0x20
- /* Define Link State constants. */
- enum {
- NR_STATE_0,
- NR_STATE_1,
- NR_STATE_2,
- NR_STATE_3
- };
- #define NR_COND_ACK_PENDING 0x01
- #define NR_COND_REJECT 0x02
- #define NR_COND_PEER_RX_BUSY 0x04
- #define NR_COND_OWN_RX_BUSY 0x08
- #define NR_DEFAULT_T1 (120 * HZ) /* Outstanding frames - 120 seconds */
- #define NR_DEFAULT_T2 (5 * HZ) /* Response delay - 5 seconds */
- #define NR_DEFAULT_N2 3 /* Number of Retries - 3 */
- #define NR_DEFAULT_T4 (180 * HZ) /* Busy Delay - 180 seconds */
- #define NR_DEFAULT_IDLE (0 * 60 * HZ) /* No Activity Timeout - none */
- #define NR_DEFAULT_WINDOW 4 /* Default Window Size - 4 */
- #define NR_DEFAULT_OBS 6 /* Default Obsolescence Count - 6 */
- #define NR_DEFAULT_QUAL 10 /* Default Neighbour Quality - 10 */
- #define NR_DEFAULT_TTL 16 /* Default Time To Live - 16 */
- #define NR_DEFAULT_ROUTING 1 /* Is routing enabled ? */
- #define NR_DEFAULT_FAILS 2 /* Link fails until route fails */
- #define NR_MODULUS 256
- #define NR_MAX_WINDOW_SIZE 127 /* Maximum Window Allowable - 127 */
- #define NR_MAX_PACKET_SIZE 236 /* Maximum Packet Length - 236 */
- typedef struct {
- ax25_address user_addr, source_addr, dest_addr;
- struct net_device *device;
- unsigned char my_index, my_id;
- unsigned char your_index, your_id;
- unsigned char state, condition, bpqext, window;
- unsigned short vs, vr, va, vl;
- unsigned char n2, n2count;
- unsigned long t1, t2, t4, idle;
- unsigned short fraglen;
- struct timer_list t1timer;
- struct timer_list t2timer;
- struct timer_list t4timer;
- struct timer_list idletimer;
- struct sk_buff_head ack_queue;
- struct sk_buff_head reseq_queue;
- struct sk_buff_head frag_queue;
- struct sock *sk; /* Backlink to socket */
- } nr_cb;
- struct nr_neigh {
- struct nr_neigh *next;
- ax25_address callsign;
- ax25_digi *digipeat;
- ax25_cb *ax25;
- struct net_device *dev;
- unsigned char quality;
- unsigned char locked;
- unsigned short count;
- unsigned int number;
- unsigned char failed;
- };
- struct nr_route {
- unsigned char quality;
- unsigned char obs_count;
- struct nr_neigh *neighbour;
- };
- struct nr_node {
- struct nr_node *next;
- ax25_address callsign;
- char mnemonic[7];
- unsigned char which;
- unsigned char count;
- struct nr_route routes[3];
- };
- /* af_netrom.c */
- extern int sysctl_netrom_default_path_quality;
- extern int sysctl_netrom_obsolescence_count_initialiser;
- extern int sysctl_netrom_network_ttl_initialiser;
- extern int sysctl_netrom_transport_timeout;
- extern int sysctl_netrom_transport_maximum_tries;
- extern int sysctl_netrom_transport_acknowledge_delay;
- extern int sysctl_netrom_transport_busy_delay;
- extern int sysctl_netrom_transport_requested_window_size;
- extern int sysctl_netrom_transport_no_activity_timeout;
- extern int sysctl_netrom_routing_control;
- extern int sysctl_netrom_link_fails_count;
- extern int nr_rx_frame(struct sk_buff *, struct net_device *);
- extern void nr_destroy_socket(struct sock *);
- /* nr_dev.c */
- extern int nr_rx_ip(struct sk_buff *, struct net_device *);
- extern int nr_init(struct net_device *);
- /* nr_in.c */
- extern int nr_process_rx_frame(struct sock *, struct sk_buff *);
- /* nr_loopback.c */
- extern void nr_loopback_init(void);
- extern void nr_loopback_clear(void);
- extern int nr_loopback_queue(struct sk_buff *);
- /* nr_out.c */
- extern void nr_output(struct sock *, struct sk_buff *);
- extern void nr_send_nak_frame(struct sock *);
- extern void nr_kick(struct sock *);
- extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
- extern void nr_establish_data_link(struct sock *);
- extern void nr_enquiry_response(struct sock *);
- extern void nr_check_iframes_acked(struct sock *, unsigned short);
- /* nr_route.c */
- extern void nr_rt_device_down(struct net_device *);
- extern struct net_device *nr_dev_first(void);
- extern struct net_device *nr_dev_get(ax25_address *);
- extern int nr_rt_ioctl(unsigned int, void *);
- extern void nr_link_failed(ax25_cb *, int);
- extern int nr_route_frame(struct sk_buff *, ax25_cb *);
- extern int nr_nodes_get_info(char *, char **, off_t, int);
- extern int nr_neigh_get_info(char *, char **, off_t, int);
- extern void nr_rt_free(void);
- /* nr_subr.c */
- extern void nr_clear_queues(struct sock *);
- extern void nr_frames_acked(struct sock *, unsigned short);
- extern void nr_requeue_frames(struct sock *);
- extern int nr_validate_nr(struct sock *, unsigned short);
- extern int nr_in_rx_window(struct sock *, unsigned short);
- extern void nr_write_internal(struct sock *, int);
- extern void nr_transmit_refusal(struct sk_buff *, int);
- extern void nr_disconnect(struct sock *, int);
- /* nr_timer.c */
- extern void nr_start_heartbeat(struct sock *);
- extern void nr_start_t1timer(struct sock *);
- extern void nr_start_t2timer(struct sock *);
- extern void nr_start_t4timer(struct sock *);
- extern void nr_start_idletimer(struct sock *);
- extern void nr_stop_heartbeat(struct sock *);
- extern void nr_stop_t1timer(struct sock *);
- extern void nr_stop_t2timer(struct sock *);
- extern void nr_stop_t4timer(struct sock *);
- extern void nr_stop_idletimer(struct sock *);
- extern int nr_t1timer_running(struct sock *);
- /* sysctl_net_netrom.c */
- extern void nr_register_sysctl(void);
- extern void nr_unregister_sysctl(void);
- #endif