diff options
Diffstat (limited to 'linux/src/include/net/netrom.h')
| -rw-r--r-- | linux/src/include/net/netrom.h | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/linux/src/include/net/netrom.h b/linux/src/include/net/netrom.h new file mode 100644 index 00000000..0920f8d1 --- /dev/null +++ b/linux/src/include/net/netrom.h @@ -0,0 +1,166 @@ +/* + * Declarations of NET/ROM type objects. + * + * Jonathan Naylor G4KLX 9/4/95 + */ + +#ifndef _NETROM_H +#define _NETROM_H +#include <linux/netrom.h> + +#define NR_SLOWHZ 10 /* Run timing at 1/10 second */ + +#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. */ + +#define NR_STATE_0 0 +#define NR_STATE_1 1 +#define NR_STATE_2 2 +#define NR_STATE_3 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 * NR_SLOWHZ) /* Outstanding frames - 120 seconds */ +#define NR_DEFAULT_T2 (5 * NR_SLOWHZ) /* Response delay - 5 seconds */ +#define NR_DEFAULT_N2 3 /* Number of Retries - 3 */ +#define NR_DEFAULT_T4 (180 * NR_SLOWHZ) /* Busy Delay - 180 seconds */ +#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 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 short t1, t2, t4; + unsigned short t1timer, t2timer, t4timer; + unsigned short fraglen; + 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 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_routing_control; +extern int sysctl_netrom_link_fails_count; +extern int nr_rx_frame(struct sk_buff *, struct device *); +extern void nr_destroy_socket(struct sock *); + +/* nr_dev.c */ +extern int nr_rx_ip(struct sk_buff *, struct device *); +extern int nr_init(struct device *); + +#include <net/nrcall.h> + +/* nr_in.c */ +extern int nr_process_rx_frame(struct sock *, 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 device *); +extern struct device *nr_dev_first(void); +extern struct 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, int); +extern int nr_neigh_get_info(char *, char **, off_t, int, 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_dm(struct sk_buff *, int); + +/* nr_timer.c */ +extern void nr_set_timer(struct sock *); + +/* sysctl_net_netrom.c */ +extern void nr_register_sysctl(void); +extern void nr_unregister_sysctl(void); + +/* nr_loopback.c */ +extern void nr_loopback_init(void); +extern void nr_loopback_clear(void); +extern int nr_loopback_queue(struct sk_buff *); + +#endif |