1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Declarations of Rose type objects. 4 * 5 * Jonathan Naylor G4KLX 25/8/96 6 */ 7 8#ifndef _ROSE_H 9#define _ROSE_H 10 11#include <linux/rose.h> 12#include <net/sock.h> 13 14#define ROSE_ADDR_LEN 5 15 16#define ROSE_MIN_LEN 3 17 18#define ROSE_CALL_REQ_ADDR_LEN_OFF 3 19#define ROSE_CALL_REQ_ADDR_LEN_VAL 0xAA /* each address is 10 digits */ 20#define ROSE_CALL_REQ_DEST_ADDR_OFF 4 21#define ROSE_CALL_REQ_SRC_ADDR_OFF 9 22#define ROSE_CALL_REQ_FACILITIES_OFF 14 23 24#define ROSE_GFI 0x10 25#define ROSE_Q_BIT 0x80 26#define ROSE_D_BIT 0x40 27#define ROSE_M_BIT 0x10 28 29#define ROSE_CALL_REQUEST 0x0B 30#define ROSE_CALL_ACCEPTED 0x0F 31#define ROSE_CLEAR_REQUEST 0x13 32#define ROSE_CLEAR_CONFIRMATION 0x17 33#define ROSE_DATA 0x00 34#define ROSE_INTERRUPT 0x23 35#define ROSE_INTERRUPT_CONFIRMATION 0x27 36#define ROSE_RR 0x01 37#define ROSE_RNR 0x05 38#define ROSE_REJ 0x09 39#define ROSE_RESET_REQUEST 0x1B 40#define ROSE_RESET_CONFIRMATION 0x1F 41#define ROSE_REGISTRATION_REQUEST 0xF3 42#define ROSE_REGISTRATION_CONFIRMATION 0xF7 43#define ROSE_RESTART_REQUEST 0xFB 44#define ROSE_RESTART_CONFIRMATION 0xFF 45#define ROSE_DIAGNOSTIC 0xF1 46#define ROSE_ILLEGAL 0xFD 47 48/* Define Link State constants. */ 49 50enum { 51 ROSE_STATE_0, /* Ready */ 52 ROSE_STATE_1, /* Awaiting Call Accepted */ 53 ROSE_STATE_2, /* Awaiting Clear Confirmation */ 54 ROSE_STATE_3, /* Data Transfer */ 55 ROSE_STATE_4, /* Awaiting Reset Confirmation */ 56 ROSE_STATE_5 /* Deferred Call Acceptance */ 57}; 58 59#define ROSE_DEFAULT_T0 180000 /* Default T10 T20 value */ 60#define ROSE_DEFAULT_T1 200000 /* Default T11 T21 value */ 61#define ROSE_DEFAULT_T2 180000 /* Default T12 T22 value */ 62#define ROSE_DEFAULT_T3 180000 /* Default T13 T23 value */ 63#define ROSE_DEFAULT_HB 5000 /* Default Holdback value */ 64#define ROSE_DEFAULT_IDLE 0 /* No Activity Timeout - none */ 65#define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */ 66#define ROSE_DEFAULT_FAIL_TIMEOUT 120000 /* Time until link considered usable */ 67#define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */ 68#define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */ 69 70#define ROSE_MODULUS 8 71#define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */ 72 73#define ROSE_COND_ACK_PENDING 0x01 74#define ROSE_COND_PEER_RX_BUSY 0x02 75#define ROSE_COND_OWN_RX_BUSY 0x04 76 77#define FAC_NATIONAL 0x00 78#define FAC_CCITT 0x0F 79 80#define FAC_NATIONAL_RAND 0x7F 81#define FAC_NATIONAL_FLAGS 0x3F 82#define FAC_NATIONAL_DEST_DIGI 0xE9 83#define FAC_NATIONAL_SRC_DIGI 0xEB 84#define FAC_NATIONAL_FAIL_CALL 0xED 85#define FAC_NATIONAL_FAIL_ADD 0xEE 86#define FAC_NATIONAL_DIGIS 0xEF 87 88#define FAC_CCITT_DEST_NSAP 0xC9 89#define FAC_CCITT_SRC_NSAP 0xCB 90 91struct rose_neigh { 92 struct rose_neigh *next; 93 ax25_address callsign; 94 ax25_digi *digipeat; 95 ax25_cb *ax25; 96 struct net_device *dev; 97 unsigned short count; 98 unsigned short use; 99 unsigned int number; 100 char restarted; 101 char dce_mode; 102 char loopback; 103 struct sk_buff_head queue; 104 struct timer_list t0timer; 105 struct timer_list ftimer; 106}; 107 108struct rose_node { 109 struct rose_node *next; 110 rose_address address; 111 unsigned short mask; 112 unsigned char count; 113 char loopback; 114 struct rose_neigh *neighbour[3]; 115}; 116 117struct rose_route { 118 struct rose_route *next; 119 unsigned int lci1, lci2; 120 rose_address src_addr, dest_addr; 121 ax25_address src_call, dest_call; 122 struct rose_neigh *neigh1, *neigh2; 123 unsigned int rand; 124}; 125 126struct rose_sock { 127 struct sock sock; 128 rose_address source_addr, dest_addr; 129 ax25_address source_call, dest_call; 130 unsigned char source_ndigis, dest_ndigis; 131 ax25_address source_digis[ROSE_MAX_DIGIS]; 132 ax25_address dest_digis[ROSE_MAX_DIGIS]; 133 struct rose_neigh *neighbour; 134 struct net_device *device; 135 unsigned int lci, rand; 136 unsigned char state, condition, qbitincl, defer; 137 unsigned char cause, diagnostic; 138 unsigned short vs, vr, va, vl; 139 unsigned long t1, t2, t3, hb, idle; 140#ifdef M_BIT 141 unsigned short fraglen; 142 struct sk_buff_head frag_queue; 143#endif 144 struct sk_buff_head ack_queue; 145 struct rose_facilities_struct facilities; 146 struct timer_list timer; 147 struct timer_list idletimer; 148}; 149 150#define rose_sk(sk) ((struct rose_sock *)(sk)) 151 152/* af_rose.c */ 153extern ax25_address rose_callsign; 154extern int sysctl_rose_restart_request_timeout; 155extern int sysctl_rose_call_request_timeout; 156extern int sysctl_rose_reset_request_timeout; 157extern int sysctl_rose_clear_request_timeout; 158extern int sysctl_rose_no_activity_timeout; 159extern int sysctl_rose_ack_hold_back_timeout; 160extern int sysctl_rose_routing_control; 161extern int sysctl_rose_link_fail_timeout; 162extern int sysctl_rose_maximum_vcs; 163extern int sysctl_rose_window_size; 164 165int rosecmp(rose_address *, rose_address *); 166int rosecmpm(rose_address *, rose_address *, unsigned short); 167char *rose2asc(char *buf, const rose_address *); 168struct sock *rose_find_socket(unsigned int, struct rose_neigh *); 169void rose_kill_by_neigh(struct rose_neigh *); 170unsigned int rose_new_lci(struct rose_neigh *); 171int rose_rx_call_request(struct sk_buff *, struct net_device *, 172 struct rose_neigh *, unsigned int); 173void rose_destroy_socket(struct sock *); 174 175/* rose_dev.c */ 176void rose_setup(struct net_device *); 177 178/* rose_in.c */ 179int rose_process_rx_frame(struct sock *, struct sk_buff *); 180 181/* rose_link.c */ 182void rose_start_ftimer(struct rose_neigh *); 183void rose_stop_ftimer(struct rose_neigh *); 184void rose_stop_t0timer(struct rose_neigh *); 185int rose_ftimer_running(struct rose_neigh *); 186void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, 187 unsigned short); 188void rose_transmit_clear_request(struct rose_neigh *, unsigned int, 189 unsigned char, unsigned char); 190void rose_transmit_link(struct sk_buff *, struct rose_neigh *); 191 192/* rose_loopback.c */ 193void rose_loopback_init(void); 194void rose_loopback_clear(void); 195int rose_loopback_queue(struct sk_buff *, struct rose_neigh *); 196 197/* rose_out.c */ 198void rose_kick(struct sock *); 199void rose_enquiry_response(struct sock *); 200 201/* rose_route.c */ 202extern struct rose_neigh *rose_loopback_neigh; 203extern const struct seq_operations rose_neigh_seqops; 204extern const struct seq_operations rose_node_seqops; 205extern struct seq_operations rose_route_seqops; 206 207void rose_add_loopback_neigh(void); 208int __must_check rose_add_loopback_node(rose_address *); 209void rose_del_loopback_node(rose_address *); 210void rose_rt_device_down(struct net_device *); 211void rose_link_device_down(struct net_device *); 212struct net_device *rose_dev_first(void); 213struct net_device *rose_dev_get(rose_address *); 214struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *); 215struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, 216 unsigned char *, int); 217int rose_rt_ioctl(unsigned int, void __user *); 218void rose_link_failed(ax25_cb *, int); 219int rose_route_frame(struct sk_buff *, ax25_cb *); 220void rose_rt_free(void); 221 222/* rose_subr.c */ 223void rose_clear_queues(struct sock *); 224void rose_frames_acked(struct sock *, unsigned short); 225void rose_requeue_frames(struct sock *); 226int rose_validate_nr(struct sock *, unsigned short); 227void rose_write_internal(struct sock *, int); 228int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *); 229int rose_parse_facilities(unsigned char *, unsigned int, 230 struct rose_facilities_struct *); 231void rose_disconnect(struct sock *, int, int, int); 232 233/* rose_timer.c */ 234void rose_start_heartbeat(struct sock *); 235void rose_start_t1timer(struct sock *); 236void rose_start_t2timer(struct sock *); 237void rose_start_t3timer(struct sock *); 238void rose_start_hbtimer(struct sock *); 239void rose_start_idletimer(struct sock *); 240void rose_stop_heartbeat(struct sock *); 241void rose_stop_timer(struct sock *); 242void rose_stop_idletimer(struct sock *); 243 244/* sysctl_net_rose.c */ 245void rose_register_sysctl(void); 246void rose_unregister_sysctl(void); 247 248#endif 249