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 #include <linux/rose.h> 10 11 #define ROSE_ADDR_LEN 5 12 13 #define ROSE_MIN_LEN 3 14 15 #define ROSE_GFI 0x10 16 #define ROSE_Q_BIT 0x80 17 #define ROSE_D_BIT 0x40 18 #define ROSE_M_BIT 0x10 19 20 #define ROSE_CALL_REQUEST 0x0B 21 #define ROSE_CALL_ACCEPTED 0x0F 22 #define ROSE_CLEAR_REQUEST 0x13 23 #define ROSE_CLEAR_CONFIRMATION 0x17 24 #define ROSE_DATA 0x00 25 #define ROSE_INTERRUPT 0x23 26 #define ROSE_INTERRUPT_CONFIRMATION 0x27 27 #define ROSE_RR 0x01 28 #define ROSE_RNR 0x05 29 #define ROSE_REJ 0x09 30 #define ROSE_RESET_REQUEST 0x1B 31 #define ROSE_RESET_CONFIRMATION 0x1F 32 #define ROSE_REGISTRATION_REQUEST 0xF3 33 #define ROSE_REGISTRATION_CONFIRMATION 0xF7 34 #define ROSE_RESTART_REQUEST 0xFB 35 #define ROSE_RESTART_CONFIRMATION 0xFF 36 #define ROSE_DIAGNOSTIC 0xF1 37 #define ROSE_ILLEGAL 0xFD 38 39 /* Define Link State constants. */ 40 41 enum { 42 ROSE_STATE_0, /* Ready */ 43 ROSE_STATE_1, /* Awaiting Call Accepted */ 44 ROSE_STATE_2, /* Awaiting Clear Confirmation */ 45 ROSE_STATE_3, /* Data Transfer */ 46 ROSE_STATE_4, /* Awaiting Reset Confirmation */ 47 ROSE_STATE_5 /* Deferred Call Acceptance */ 48 }; 49 50 #define ROSE_DEFAULT_T0 (180 * HZ) /* Default T10 T20 value */ 51 #define ROSE_DEFAULT_T1 (200 * HZ) /* Default T11 T21 value */ 52 #define ROSE_DEFAULT_T2 (180 * HZ) /* Default T12 T22 value */ 53 #define ROSE_DEFAULT_T3 (180 * HZ) /* Default T13 T23 value */ 54 #define ROSE_DEFAULT_HB (5 * HZ) /* Default Holdback value */ 55 #define ROSE_DEFAULT_IDLE (0 * 60 * HZ) /* No Activity Timeout - none */ 56 #define ROSE_DEFAULT_ROUTING 1 /* Default routing flag */ 57 #define ROSE_DEFAULT_FAIL_TIMEOUT (120 * HZ) /* Time until link considered usable */ 58 #define ROSE_DEFAULT_MAXVC 50 /* Maximum number of VCs per neighbour */ 59 #define ROSE_DEFAULT_WINDOW_SIZE 7 /* Default window size */ 60 61 #define ROSE_MODULUS 8 62 #define ROSE_MAX_PACKET_SIZE 251 /* Maximum packet size */ 63 64 #define ROSE_COND_ACK_PENDING 0x01 65 #define ROSE_COND_PEER_RX_BUSY 0x02 66 #define ROSE_COND_OWN_RX_BUSY 0x04 67 68 #define FAC_NATIONAL 0x00 69 #define FAC_CCITT 0x0F 70 71 #define FAC_NATIONAL_RAND 0x7F 72 #define FAC_NATIONAL_FLAGS 0x3F 73 #define FAC_NATIONAL_DEST_DIGI 0xE9 74 #define FAC_NATIONAL_SRC_DIGI 0xEB 75 #define FAC_NATIONAL_FAIL_CALL 0xED 76 #define FAC_NATIONAL_FAIL_ADD 0xEE 77 #define FAC_NATIONAL_DIGIS 0xEF 78 79 #define FAC_CCITT_DEST_NSAP 0xC9 80 #define FAC_CCITT_SRC_NSAP 0xCB 81 82 struct rose_neigh { 83 struct rose_neigh *next; 84 ax25_address callsign; 85 ax25_digi *digipeat; 86 ax25_cb *ax25; 87 struct net_device *dev; 88 unsigned short count; 89 unsigned short use; 90 unsigned int number; 91 char restarted; 92 char dce_mode; 93 char loopback; 94 struct sk_buff_head queue; 95 struct timer_list t0timer; 96 struct timer_list ftimer; 97 }; 98 99 struct rose_node { 100 struct rose_node *next; 101 rose_address address; 102 unsigned short mask; 103 unsigned char count; 104 char loopback; 105 struct rose_neigh *neighbour[3]; 106 }; 107 108 struct rose_route { 109 struct rose_route *next; 110 unsigned int lci1, lci2; 111 rose_address src_addr, dest_addr; 112 ax25_address src_call, dest_call; 113 struct rose_neigh *neigh1, *neigh2; 114 unsigned int rand; 115 }; 116 117 typedef struct { 118 rose_address source_addr, dest_addr; 119 ax25_address source_call, dest_call; 120 unsigned char source_ndigis, dest_ndigis; 121 ax25_address source_digis[ROSE_MAX_DIGIS]; 122 ax25_address dest_digis[ROSE_MAX_DIGIS]; 123 struct rose_neigh *neighbour; 124 struct net_device *device; 125 unsigned int lci, rand; 126 unsigned char state, condition, qbitincl, defer; 127 unsigned char cause, diagnostic; 128 unsigned short vs, vr, va, vl; 129 unsigned long t1, t2, t3, hb, idle; 130 #ifdef M_BIT 131 unsigned short fraglen; 132 struct sk_buff_head frag_queue; 133 #endif 134 struct sk_buff_head ack_queue; 135 struct rose_facilities_struct facilities; 136 struct timer_list timer; 137 struct timer_list idletimer; 138 struct sock *sk; /* Backlink to socket */ 139 } rose_cb; 140 141 /* af_rose.c */ 142 extern ax25_address rose_callsign; 143 extern int sysctl_rose_restart_request_timeout; 144 extern int sysctl_rose_call_request_timeout; 145 extern int sysctl_rose_reset_request_timeout; 146 extern int sysctl_rose_clear_request_timeout; 147 extern int sysctl_rose_no_activity_timeout; 148 extern int sysctl_rose_ack_hold_back_timeout; 149 extern int sysctl_rose_routing_control; 150 extern int sysctl_rose_link_fail_timeout; 151 extern int sysctl_rose_maximum_vcs; 152 extern int sysctl_rose_window_size; 153 extern int rosecmp(rose_address *, rose_address *); 154 extern int rosecmpm(rose_address *, rose_address *, unsigned short); 155 extern char *rose2asc(rose_address *); 156 extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *); 157 extern void rose_kill_by_neigh(struct rose_neigh *); 158 extern unsigned int rose_new_lci(struct rose_neigh *); 159 extern int rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int); 160 extern void rose_destroy_socket(struct sock *); 161 162 /* rose_dev.c */ 163 extern int rose_rx_ip(struct sk_buff *, struct net_device *); 164 extern int rose_init(struct net_device *); 165 166 /* rose_in.c */ 167 extern int rose_process_rx_frame(struct sock *, struct sk_buff *); 168 169 /* rose_link.c */ 170 extern void rose_start_ftimer(struct rose_neigh *); 171 extern void rose_start_t0timer(struct rose_neigh *); 172 extern void rose_stop_ftimer(struct rose_neigh *); 173 extern void rose_stop_t0timer(struct rose_neigh *); 174 extern int rose_ftimer_running(struct rose_neigh *); 175 extern int rose_t0timer_running(struct rose_neigh *); 176 extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short); 177 extern void rose_transmit_restart_request(struct rose_neigh *); 178 extern void rose_transmit_restart_confirmation(struct rose_neigh *); 179 extern void rose_transmit_diagnostic(struct rose_neigh *, unsigned char); 180 extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char); 181 extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *); 182 183 /* rose_loopback.c */ 184 extern void rose_loopback_init(void); 185 extern void rose_loopback_clear(void); 186 extern int rose_loopback_queue(struct sk_buff *, struct rose_neigh *); 187 188 /* rose_out.c */ 189 extern void rose_kick(struct sock *); 190 extern void rose_enquiry_response(struct sock *); 191 192 /* rose_route.c */ 193 extern struct rose_neigh *rose_loopback_neigh; 194 195 extern int rose_add_loopback_neigh(void); 196 extern int rose_add_loopback_node(rose_address *); 197 extern void rose_del_loopback_node(rose_address *); 198 extern void rose_rt_device_down(struct net_device *); 199 extern void rose_link_device_down(struct net_device *); 200 extern struct net_device *rose_dev_first(void); 201 extern struct net_device *rose_dev_get(rose_address *); 202 extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *); 203 extern struct net_device *rose_ax25_dev_get(char *); 204 extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *); 205 extern int rose_rt_ioctl(unsigned int, void *); 206 extern void rose_link_failed(ax25_cb *, int); 207 extern int rose_route_frame(struct sk_buff *, ax25_cb *); 208 extern int rose_nodes_get_info(char *, char **, off_t, int); 209 extern int rose_neigh_get_info(char *, char **, off_t, int); 210 extern int rose_routes_get_info(char *, char **, off_t, int); 211 extern void rose_rt_free(void); 212 213 /* rose_subr.c */ 214 extern void rose_clear_queues(struct sock *); 215 extern void rose_frames_acked(struct sock *, unsigned short); 216 extern void rose_requeue_frames(struct sock *); 217 extern int rose_validate_nr(struct sock *, unsigned short); 218 extern void rose_write_internal(struct sock *, int); 219 extern int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *); 220 extern int rose_parse_facilities(unsigned char *, struct rose_facilities_struct *); 221 extern int rose_create_facilities(unsigned char *, rose_cb *); 222 extern void rose_disconnect(struct sock *, int, int, int); 223 224 /* rose_timer.c */ 225 extern void rose_start_heartbeat(struct sock *); 226 extern void rose_start_t1timer(struct sock *); 227 extern void rose_start_t2timer(struct sock *); 228 extern void rose_start_t3timer(struct sock *); 229 extern void rose_start_hbtimer(struct sock *); 230 extern void rose_start_idletimer(struct sock *); 231 extern void rose_stop_heartbeat(struct sock *); 232 extern void rose_stop_timer(struct sock *); 233 extern void rose_stop_idletimer(struct sock *); 234 235 /* sysctl_net_rose.c */ 236 extern void rose_register_sysctl(void); 237 extern void rose_unregister_sysctl(void); 238 239 #endif 240