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/ax25.h> 13#include <net/sock.h> 14 15#define ROSE_ADDR_LEN 5 16 17#define ROSE_MIN_LEN 3 18 19#define ROSE_CALL_REQ_ADDR_LEN_OFF 3 20#define ROSE_CALL_REQ_ADDR_LEN_VAL 0xAA /* each address is 10 digits */ 21#define ROSE_CALL_REQ_DEST_ADDR_OFF 4 22#define ROSE_CALL_REQ_SRC_ADDR_OFF 9 23#define ROSE_CALL_REQ_FACILITIES_OFF 14 24 25#define ROSE_GFI 0x10 26#define ROSE_Q_BIT 0x80 27#define ROSE_D_BIT 0x40 28#define ROSE_M_BIT 0x10 29 30#define ROSE_CALL_REQUEST 0x0B 31#define ROSE_CALL_ACCEPTED 0x0F 32#define ROSE_CLEAR_REQUEST 0x13 33#define ROSE_CLEAR_CONFIRMATION 0x17 34#define ROSE_DATA 0x00 35#define ROSE_INTERRUPT 0x23 36#define ROSE_INTERRUPT_CONFIRMATION 0x27 37#define ROSE_RR 0x01 38#define ROSE_RNR 0x05 39#define ROSE_REJ 0x09 40#define ROSE_RESET_REQUEST 0x1B 41#define ROSE_RESET_CONFIRMATION 0x1F 42#define ROSE_REGISTRATION_REQUEST 0xF3 43#define ROSE_REGISTRATION_CONFIRMATION 0xF7 44#define ROSE_RESTART_REQUEST 0xFB 45#define ROSE_RESTART_CONFIRMATION 0xFF 46#define ROSE_DIAGNOSTIC 0xF1 47#define ROSE_ILLEGAL 0xFD 48 49/* Define Link State constants. */ 50 51enum { 52 ROSE_STATE_0, /* Ready */ 53 ROSE_STATE_1, /* Awaiting Call Accepted */ 54 ROSE_STATE_2, /* Awaiting Clear Confirmation */ 55 ROSE_STATE_3, /* Data Transfer */ 56 ROSE_STATE_4, /* Awaiting Reset Confirmation */ 57 ROSE_STATE_5 /* Deferred Call Acceptance */ 58}; 59 60#define ROSE_DEFAULT_T0 180000 /* Default T10 T20 value */ 61#define ROSE_DEFAULT_T1 200000 /* Default T11 T21 value */ 62#define ROSE_DEFAULT_T2 180000 /* Default T12 T22 value */ 63#define ROSE_DEFAULT_T3 180000 /* Default T13 T23 value */ 64#define ROSE_DEFAULT_HB 5000 /* Default Holdback value */ 65#define ROSE_DEFAULT_IDLE 0 /* No Activity Timeout - none */ 66#define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */ 67#define ROSE_DEFAULT_FAIL_TIMEOUT 120000 /* Time until link considered usable */ 68#define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */ 69#define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */ 70 71#define ROSE_MODULUS 8 72#define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */ 73 74#define ROSE_COND_ACK_PENDING 0x01 75#define ROSE_COND_PEER_RX_BUSY 0x02 76#define ROSE_COND_OWN_RX_BUSY 0x04 77 78#define FAC_NATIONAL 0x00 79#define FAC_CCITT 0x0F 80 81#define FAC_NATIONAL_RAND 0x7F 82#define FAC_NATIONAL_FLAGS 0x3F 83#define FAC_NATIONAL_DEST_DIGI 0xE9 84#define FAC_NATIONAL_SRC_DIGI 0xEB 85#define FAC_NATIONAL_FAIL_CALL 0xED 86#define FAC_NATIONAL_FAIL_ADD 0xEE 87#define FAC_NATIONAL_DIGIS 0xEF 88 89#define FAC_CCITT_DEST_NSAP 0xC9 90#define FAC_CCITT_SRC_NSAP 0xCB 91 92struct rose_neigh { 93 struct rose_neigh *next; 94 ax25_address callsign; 95 ax25_digi *digipeat; 96 ax25_cb *ax25; 97 struct net_device *dev; 98 unsigned short count; 99 unsigned short use; 100 unsigned int number; 101 char restarted; 102 char dce_mode; 103 char loopback; 104 struct sk_buff_head queue; 105 struct timer_list t0timer; 106 struct timer_list ftimer; 107}; 108 109struct rose_node { 110 struct rose_node *next; 111 rose_address address; 112 unsigned short mask; 113 unsigned char count; 114 char loopback; 115 struct rose_neigh *neighbour[3]; 116}; 117 118struct rose_route { 119 struct rose_route *next; 120 unsigned int lci1, lci2; 121 rose_address src_addr, dest_addr; 122 ax25_address src_call, dest_call; 123 struct rose_neigh *neigh1, *neigh2; 124 unsigned int rand; 125}; 126 127struct rose_sock { 128 struct sock sock; 129 rose_address source_addr, dest_addr; 130 ax25_address source_call, dest_call; 131 unsigned char source_ndigis, dest_ndigis; 132 ax25_address source_digis[ROSE_MAX_DIGIS]; 133 ax25_address dest_digis[ROSE_MAX_DIGIS]; 134 struct rose_neigh *neighbour; 135 struct net_device *device; 136 netdevice_tracker dev_tracker; 137 unsigned int lci, rand; 138 unsigned char state, condition, qbitincl, defer; 139 unsigned char cause, diagnostic; 140 unsigned short vs, vr, va, vl; 141 unsigned long t1, t2, t3, hb, idle; 142#ifdef M_BIT 143 unsigned short fraglen; 144 struct sk_buff_head frag_queue; 145#endif 146 struct sk_buff_head ack_queue; 147 struct rose_facilities_struct facilities; 148 struct timer_list timer; 149 struct timer_list idletimer; 150}; 151 152#define rose_sk(sk) ((struct rose_sock *)(sk)) 153 154/* af_rose.c */ 155extern ax25_address rose_callsign; 156extern int sysctl_rose_restart_request_timeout; 157extern int sysctl_rose_call_request_timeout; 158extern int sysctl_rose_reset_request_timeout; 159extern int sysctl_rose_clear_request_timeout; 160extern int sysctl_rose_no_activity_timeout; 161extern int sysctl_rose_ack_hold_back_timeout; 162extern int sysctl_rose_routing_control; 163extern int sysctl_rose_link_fail_timeout; 164extern int sysctl_rose_maximum_vcs; 165extern int sysctl_rose_window_size; 166 167int rosecmp(const rose_address *, const rose_address *); 168int rosecmpm(const rose_address *, const rose_address *, unsigned short); 169char *rose2asc(char *buf, const rose_address *); 170struct sock *rose_find_socket(unsigned int, struct rose_neigh *); 171void rose_kill_by_neigh(struct rose_neigh *); 172unsigned int rose_new_lci(struct rose_neigh *); 173int rose_rx_call_request(struct sk_buff *, struct net_device *, 174 struct rose_neigh *, unsigned int); 175void rose_destroy_socket(struct sock *); 176 177/* rose_dev.c */ 178void rose_setup(struct net_device *); 179 180/* rose_in.c */ 181int rose_process_rx_frame(struct sock *, struct sk_buff *); 182 183/* rose_link.c */ 184void rose_start_ftimer(struct rose_neigh *); 185void rose_stop_ftimer(struct rose_neigh *); 186void rose_stop_t0timer(struct rose_neigh *); 187int rose_ftimer_running(struct rose_neigh *); 188void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, 189 unsigned short); 190void rose_transmit_clear_request(struct rose_neigh *, unsigned int, 191 unsigned char, unsigned char); 192void rose_transmit_link(struct sk_buff *, struct rose_neigh *); 193 194/* rose_loopback.c */ 195void rose_loopback_init(void); 196void rose_loopback_clear(void); 197int rose_loopback_queue(struct sk_buff *, struct rose_neigh *); 198 199/* rose_out.c */ 200void rose_kick(struct sock *); 201void rose_enquiry_response(struct sock *); 202 203/* rose_route.c */ 204extern struct rose_neigh *rose_loopback_neigh; 205extern const struct seq_operations rose_neigh_seqops; 206extern const struct seq_operations rose_node_seqops; 207extern struct seq_operations rose_route_seqops; 208 209void rose_add_loopback_neigh(void); 210int __must_check rose_add_loopback_node(const rose_address *); 211void rose_del_loopback_node(const rose_address *); 212void rose_rt_device_down(struct net_device *); 213void rose_link_device_down(struct net_device *); 214struct net_device *rose_dev_first(void); 215struct net_device *rose_dev_get(rose_address *); 216struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *); 217struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, 218 unsigned char *, int); 219int rose_rt_ioctl(unsigned int, void __user *); 220void rose_link_failed(ax25_cb *, int); 221int rose_route_frame(struct sk_buff *, ax25_cb *); 222void rose_rt_free(void); 223 224/* rose_subr.c */ 225void rose_clear_queues(struct sock *); 226void rose_frames_acked(struct sock *, unsigned short); 227void rose_requeue_frames(struct sock *); 228int rose_validate_nr(struct sock *, unsigned short); 229void rose_write_internal(struct sock *, int); 230int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *); 231int rose_parse_facilities(unsigned char *, unsigned int, 232 struct rose_facilities_struct *); 233void rose_disconnect(struct sock *, int, int, int); 234 235/* rose_timer.c */ 236void rose_start_heartbeat(struct sock *); 237void rose_start_t1timer(struct sock *); 238void rose_start_t2timer(struct sock *); 239void rose_start_t3timer(struct sock *); 240void rose_start_hbtimer(struct sock *); 241void rose_start_idletimer(struct sock *); 242void rose_stop_heartbeat(struct sock *); 243void rose_stop_timer(struct sock *); 244void rose_stop_idletimer(struct sock *); 245 246/* sysctl_net_rose.c */ 247void rose_register_sysctl(void); 248void rose_unregister_sysctl(void); 249 250#endif 251