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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
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
49
50 enum {
51 ROSE_STATE_0,
52 ROSE_STATE_1,
53 ROSE_STATE_2,
54 ROSE_STATE_3,
55 ROSE_STATE_4,
56 ROSE_STATE_5
57 };
58
59 #define ROSE_DEFAULT_T0 180000
60 #define ROSE_DEFAULT_T1 200000
61 #define ROSE_DEFAULT_T2 180000
62 #define ROSE_DEFAULT_T3 180000
63 #define ROSE_DEFAULT_HB 5000
64 #define ROSE_DEFAULT_IDLE 0
65 #define ROSE_DEFAULT_ROUTING 1
66 #define ROSE_DEFAULT_FAIL_TIMEOUT 120000
67 #define ROSE_DEFAULT_MAXVC 50
68 #define ROSE_DEFAULT_WINDOW_SIZE 7
69
70 #define ROSE_MODULUS 8
71 #define ROSE_MAX_PACKET_SIZE 251
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
91 struct 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
108 struct 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
117 struct 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
126 struct 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
153 extern ax25_address rose_callsign;
154 extern int sysctl_rose_restart_request_timeout;
155 extern int sysctl_rose_call_request_timeout;
156 extern int sysctl_rose_reset_request_timeout;
157 extern int sysctl_rose_clear_request_timeout;
158 extern int sysctl_rose_no_activity_timeout;
159 extern int sysctl_rose_ack_hold_back_timeout;
160 extern int sysctl_rose_routing_control;
161 extern int sysctl_rose_link_fail_timeout;
162 extern int sysctl_rose_maximum_vcs;
163 extern int sysctl_rose_window_size;
164
165 int rosecmp(rose_address *, rose_address *);
166 int rosecmpm(rose_address *, rose_address *, unsigned short);
167 char *rose2asc(char *buf, const rose_address *);
168 struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
169 void rose_kill_by_neigh(struct rose_neigh *);
170 unsigned int rose_new_lci(struct rose_neigh *);
171 int rose_rx_call_request(struct sk_buff *, struct net_device *,
172 struct rose_neigh *, unsigned int);
173 void rose_destroy_socket(struct sock *);
174
175
176 void rose_setup(struct net_device *);
177
178
179 int rose_process_rx_frame(struct sock *, struct sk_buff *);
180
181
182 void rose_start_ftimer(struct rose_neigh *);
183 void rose_stop_ftimer(struct rose_neigh *);
184 void rose_stop_t0timer(struct rose_neigh *);
185 int rose_ftimer_running(struct rose_neigh *);
186 void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *,
187 unsigned short);
188 void rose_transmit_clear_request(struct rose_neigh *, unsigned int,
189 unsigned char, unsigned char);
190 void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
191
192
193 void rose_loopback_init(void);
194 void rose_loopback_clear(void);
195 int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
196
197
198 void rose_kick(struct sock *);
199 void rose_enquiry_response(struct sock *);
200
201
202 extern struct rose_neigh *rose_loopback_neigh;
203 extern const struct seq_operations rose_neigh_seqops;
204 extern const struct seq_operations rose_node_seqops;
205 extern struct seq_operations rose_route_seqops;
206
207 void rose_add_loopback_neigh(void);
208 int __must_check rose_add_loopback_node(rose_address *);
209 void rose_del_loopback_node(rose_address *);
210 void rose_rt_device_down(struct net_device *);
211 void rose_link_device_down(struct net_device *);
212 struct net_device *rose_dev_first(void);
213 struct net_device *rose_dev_get(rose_address *);
214 struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
215 struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *,
216 unsigned char *, int);
217 int rose_rt_ioctl(unsigned int, void __user *);
218 void rose_link_failed(ax25_cb *, int);
219 int rose_route_frame(struct sk_buff *, ax25_cb *);
220 void rose_rt_free(void);
221
222
223 void rose_clear_queues(struct sock *);
224 void rose_frames_acked(struct sock *, unsigned short);
225 void rose_requeue_frames(struct sock *);
226 int rose_validate_nr(struct sock *, unsigned short);
227 void rose_write_internal(struct sock *, int);
228 int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
229 int rose_parse_facilities(unsigned char *, unsigned int,
230 struct rose_facilities_struct *);
231 void rose_disconnect(struct sock *, int, int, int);
232
233
234 void rose_start_heartbeat(struct sock *);
235 void rose_start_t1timer(struct sock *);
236 void rose_start_t2timer(struct sock *);
237 void rose_start_t3timer(struct sock *);
238 void rose_start_hbtimer(struct sock *);
239 void rose_start_idletimer(struct sock *);
240 void rose_stop_heartbeat(struct sock *);
241 void rose_stop_timer(struct sock *);
242 void rose_stop_idletimer(struct sock *);
243
244
245 void rose_register_sysctl(void);
246 void rose_unregister_sysctl(void);
247
248 #endif