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