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