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Diffstat (limited to 'include/net/rose.h')
| -rw-r--r-- | include/net/rose.h | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/include/net/rose.h b/include/net/rose.h new file mode 100644 index 000000000..cf517d306 --- /dev/null +++ b/include/net/rose.h @@ -0,0 +1,248 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Declarations of Rose type objects. + * + * Jonathan Naylor G4KLX 25/8/96 + */ + +#ifndef _ROSE_H +#define _ROSE_H + +#include <linux/rose.h> +#include <net/sock.h> + +#define ROSE_ADDR_LEN 5 + +#define ROSE_MIN_LEN 3 + +#define ROSE_CALL_REQ_ADDR_LEN_OFF 3 +#define ROSE_CALL_REQ_ADDR_LEN_VAL 0xAA /* each address is 10 digits */ +#define ROSE_CALL_REQ_DEST_ADDR_OFF 4 +#define ROSE_CALL_REQ_SRC_ADDR_OFF 9 +#define ROSE_CALL_REQ_FACILITIES_OFF 14 + +#define ROSE_GFI 0x10 +#define ROSE_Q_BIT 0x80 +#define ROSE_D_BIT 0x40 +#define ROSE_M_BIT 0x10 + +#define ROSE_CALL_REQUEST 0x0B +#define ROSE_CALL_ACCEPTED 0x0F +#define ROSE_CLEAR_REQUEST 0x13 +#define ROSE_CLEAR_CONFIRMATION 0x17 +#define ROSE_DATA 0x00 +#define ROSE_INTERRUPT 0x23 +#define ROSE_INTERRUPT_CONFIRMATION 0x27 +#define ROSE_RR 0x01 +#define ROSE_RNR 0x05 +#define ROSE_REJ 0x09 +#define ROSE_RESET_REQUEST 0x1B +#define ROSE_RESET_CONFIRMATION 0x1F +#define ROSE_REGISTRATION_REQUEST 0xF3 +#define ROSE_REGISTRATION_CONFIRMATION 0xF7 +#define ROSE_RESTART_REQUEST 0xFB +#define ROSE_RESTART_CONFIRMATION 0xFF +#define ROSE_DIAGNOSTIC 0xF1 +#define ROSE_ILLEGAL 0xFD + +/* Define Link State constants. */ + +enum { + ROSE_STATE_0, /* Ready */ + ROSE_STATE_1, /* Awaiting Call Accepted */ + ROSE_STATE_2, /* Awaiting Clear Confirmation */ + ROSE_STATE_3, /* Data Transfer */ + ROSE_STATE_4, /* Awaiting Reset Confirmation */ + ROSE_STATE_5 /* Deferred Call Acceptance */ +}; + +#define ROSE_DEFAULT_T0 180000 /* Default T10 T20 value */ +#define ROSE_DEFAULT_T1 200000 /* Default T11 T21 value */ +#define ROSE_DEFAULT_T2 180000 /* Default T12 T22 value */ +#define ROSE_DEFAULT_T3 180000 /* Default T13 T23 value */ +#define ROSE_DEFAULT_HB 5000 /* Default Holdback value */ +#define ROSE_DEFAULT_IDLE 0 /* No Activity Timeout - none */ +#define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */ +#define ROSE_DEFAULT_FAIL_TIMEOUT 120000 /* Time until link considered usable */ +#define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */ +#define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */ + +#define ROSE_MODULUS 8 +#define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */ + +#define ROSE_COND_ACK_PENDING 0x01 +#define ROSE_COND_PEER_RX_BUSY 0x02 +#define ROSE_COND_OWN_RX_BUSY 0x04 + +#define FAC_NATIONAL 0x00 +#define FAC_CCITT 0x0F + +#define FAC_NATIONAL_RAND 0x7F +#define FAC_NATIONAL_FLAGS 0x3F +#define FAC_NATIONAL_DEST_DIGI 0xE9 +#define FAC_NATIONAL_SRC_DIGI 0xEB +#define FAC_NATIONAL_FAIL_CALL 0xED +#define FAC_NATIONAL_FAIL_ADD 0xEE +#define FAC_NATIONAL_DIGIS 0xEF + +#define FAC_CCITT_DEST_NSAP 0xC9 +#define FAC_CCITT_SRC_NSAP 0xCB + +struct rose_neigh { + struct rose_neigh *next; + ax25_address callsign; + ax25_digi *digipeat; + ax25_cb *ax25; + struct net_device *dev; + unsigned short count; + unsigned short use; + unsigned int number; + char restarted; + char dce_mode; + char loopback; + struct sk_buff_head queue; + struct timer_list t0timer; + struct timer_list ftimer; +}; + +struct rose_node { + struct rose_node *next; + rose_address address; + unsigned short mask; + unsigned char count; + char loopback; + struct rose_neigh *neighbour[3]; +}; + +struct rose_route { + struct rose_route *next; + unsigned int lci1, lci2; + rose_address src_addr, dest_addr; + ax25_address src_call, dest_call; + struct rose_neigh *neigh1, *neigh2; + unsigned int rand; +}; + +struct rose_sock { + struct sock sock; + rose_address source_addr, dest_addr; + ax25_address source_call, dest_call; + unsigned char source_ndigis, dest_ndigis; + ax25_address source_digis[ROSE_MAX_DIGIS]; + ax25_address dest_digis[ROSE_MAX_DIGIS]; + struct rose_neigh *neighbour; + struct net_device *device; + unsigned int lci, rand; + unsigned char state, condition, qbitincl, defer; + unsigned char cause, diagnostic; + unsigned short vs, vr, va, vl; + unsigned long t1, t2, t3, hb, idle; +#ifdef M_BIT + unsigned short fraglen; + struct sk_buff_head frag_queue; +#endif + struct sk_buff_head ack_queue; + struct rose_facilities_struct facilities; + struct timer_list timer; + struct timer_list idletimer; +}; + +#define rose_sk(sk) ((struct rose_sock *)(sk)) + +/* af_rose.c */ +extern ax25_address rose_callsign; +extern int sysctl_rose_restart_request_timeout; +extern int sysctl_rose_call_request_timeout; +extern int sysctl_rose_reset_request_timeout; +extern int sysctl_rose_clear_request_timeout; +extern int sysctl_rose_no_activity_timeout; +extern int sysctl_rose_ack_hold_back_timeout; +extern int sysctl_rose_routing_control; +extern int sysctl_rose_link_fail_timeout; +extern int sysctl_rose_maximum_vcs; +extern int sysctl_rose_window_size; + +int rosecmp(rose_address *, rose_address *); +int rosecmpm(rose_address *, rose_address *, unsigned short); +char *rose2asc(char *buf, const rose_address *); +struct sock *rose_find_socket(unsigned int, struct rose_neigh *); +void rose_kill_by_neigh(struct rose_neigh *); +unsigned int rose_new_lci(struct rose_neigh *); +int rose_rx_call_request(struct sk_buff *, struct net_device *, + struct rose_neigh *, unsigned int); +void rose_destroy_socket(struct sock *); + +/* rose_dev.c */ +void rose_setup(struct net_device *); + +/* rose_in.c */ +int rose_process_rx_frame(struct sock *, struct sk_buff *); + +/* rose_link.c */ +void rose_start_ftimer(struct rose_neigh *); +void rose_stop_ftimer(struct rose_neigh *); +void rose_stop_t0timer(struct rose_neigh *); +int rose_ftimer_running(struct rose_neigh *); +void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, + unsigned short); +void rose_transmit_clear_request(struct rose_neigh *, unsigned int, + unsigned char, unsigned char); +void rose_transmit_link(struct sk_buff *, struct rose_neigh *); + +/* rose_loopback.c */ +void rose_loopback_init(void); +void rose_loopback_clear(void); +int rose_loopback_queue(struct sk_buff *, struct rose_neigh *); + +/* rose_out.c */ +void rose_kick(struct sock *); +void rose_enquiry_response(struct sock *); + +/* rose_route.c */ +extern struct rose_neigh *rose_loopback_neigh; +extern const struct seq_operations rose_neigh_seqops; +extern const struct seq_operations rose_node_seqops; +extern struct seq_operations rose_route_seqops; + +void rose_add_loopback_neigh(void); +int __must_check rose_add_loopback_node(rose_address *); +void rose_del_loopback_node(rose_address *); +void rose_rt_device_down(struct net_device *); +void rose_link_device_down(struct net_device *); +struct net_device *rose_dev_first(void); +struct net_device *rose_dev_get(rose_address *); +struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *); +struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, + unsigned char *, int); +int rose_rt_ioctl(unsigned int, void __user *); +void rose_link_failed(ax25_cb *, int); +int rose_route_frame(struct sk_buff *, ax25_cb *); +void rose_rt_free(void); + +/* rose_subr.c */ +void rose_clear_queues(struct sock *); +void rose_frames_acked(struct sock *, unsigned short); +void rose_requeue_frames(struct sock *); +int rose_validate_nr(struct sock *, unsigned short); +void rose_write_internal(struct sock *, int); +int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *); +int rose_parse_facilities(unsigned char *, unsigned int, + struct rose_facilities_struct *); +void rose_disconnect(struct sock *, int, int, int); + +/* rose_timer.c */ +void rose_start_heartbeat(struct sock *); +void rose_start_t1timer(struct sock *); +void rose_start_t2timer(struct sock *); +void rose_start_t3timer(struct sock *); +void rose_start_hbtimer(struct sock *); +void rose_start_idletimer(struct sock *); +void rose_stop_heartbeat(struct sock *); +void rose_stop_timer(struct sock *); +void rose_stop_idletimer(struct sock *); + +/* sysctl_net_rose.c */ +void rose_register_sysctl(void); +void rose_unregister_sysctl(void); + +#endif |