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 #define rose_sk(__sk) ((rose_cb *)(__sk)->sk_protinfo)
142
143 /* af_rose.c */
144 extern ax25_address rose_callsign;
145 extern int sysctl_rose_restart_request_timeout;
146 extern int sysctl_rose_call_request_timeout;
147 extern int sysctl_rose_reset_request_timeout;
148 extern int sysctl_rose_clear_request_timeout;
149 extern int sysctl_rose_no_activity_timeout;
150 extern int sysctl_rose_ack_hold_back_timeout;
151 extern int sysctl_rose_routing_control;
152 extern int sysctl_rose_link_fail_timeout;
153 extern int sysctl_rose_maximum_vcs;
154 extern int sysctl_rose_window_size;
155 extern int rosecmp(rose_address *, rose_address *);
156 extern int rosecmpm(rose_address *, rose_address *, unsigned short);
157 extern const char *rose2asc(const rose_address *);
158 extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
159 extern void rose_kill_by_neigh(struct rose_neigh *);
160 extern unsigned int rose_new_lci(struct rose_neigh *);
161 extern int rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int);
162 extern void rose_destroy_socket(struct sock *);
163
164 /* rose_dev.c */
165 extern void rose_setup(struct net_device *);
166
167 /* rose_in.c */
168 extern int rose_process_rx_frame(struct sock *, struct sk_buff *);
169
170 /* rose_link.c */
171 extern void rose_start_ftimer(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 void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
176 extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char);
177 extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
178
179 /* rose_loopback.c */
180 extern void rose_loopback_init(void);
181 extern void rose_loopback_clear(void);
182 extern int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
183
184 /* rose_out.c */
185 extern void rose_kick(struct sock *);
186 extern void rose_enquiry_response(struct sock *);
187
188 /* rose_route.c */
189 extern struct rose_neigh *rose_loopback_neigh;
190 extern struct file_operations rose_neigh_fops;
191 extern struct file_operations rose_nodes_fops;
192 extern struct file_operations rose_routes_fops;
193
194 extern int rose_add_loopback_neigh(void);
195 extern int rose_add_loopback_node(rose_address *);
196 extern void rose_del_loopback_node(rose_address *);
197 extern void rose_rt_device_down(struct net_device *);
198 extern void rose_link_device_down(struct net_device *);
199 extern struct net_device *rose_dev_first(void);
200 extern struct net_device *rose_dev_get(rose_address *);
201 extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
202 extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *);
203 extern int rose_rt_ioctl(unsigned int, void __user *);
204 extern void rose_link_failed(ax25_cb *, int);
205 extern int rose_route_frame(struct sk_buff *, ax25_cb *);
206 extern void rose_rt_free(void);
207
208 /* rose_subr.c */
209 extern void rose_clear_queues(struct sock *);
210 extern void rose_frames_acked(struct sock *, unsigned short);
211 extern void rose_requeue_frames(struct sock *);
212 extern int rose_validate_nr(struct sock *, unsigned short);
213 extern void rose_write_internal(struct sock *, int);
214 extern int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
215 extern int rose_parse_facilities(unsigned char *, struct rose_facilities_struct *);
216 extern void rose_disconnect(struct sock *, int, int, int);
217
218 /* rose_timer.c */
219 extern void rose_start_heartbeat(struct sock *);
220 extern void rose_start_t1timer(struct sock *);
221 extern void rose_start_t2timer(struct sock *);
222 extern void rose_start_t3timer(struct sock *);
223 extern void rose_start_hbtimer(struct sock *);
224 extern void rose_start_idletimer(struct sock *);
225 extern void rose_stop_heartbeat(struct sock *);
226 extern void rose_stop_timer(struct sock *);
227 extern void rose_stop_idletimer(struct sock *);
228
229 /* sysctl_net_rose.c */
230 extern void rose_register_sysctl(void);
231 extern void rose_unregister_sysctl(void);
232
233 #endif
234
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