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 | |
51 | enum { |
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 | |
92 | struct 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 | |
109 | struct 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 | |
118 | struct 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 | |
127 | struct 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 */ |
155 | extern ax25_address rose_callsign; |
156 | extern int sysctl_rose_restart_request_timeout; |
157 | extern int sysctl_rose_call_request_timeout; |
158 | extern int sysctl_rose_reset_request_timeout; |
159 | extern int sysctl_rose_clear_request_timeout; |
160 | extern int sysctl_rose_no_activity_timeout; |
161 | extern int sysctl_rose_ack_hold_back_timeout; |
162 | extern int sysctl_rose_routing_control; |
163 | extern int sysctl_rose_link_fail_timeout; |
164 | extern int sysctl_rose_maximum_vcs; |
165 | extern int sysctl_rose_window_size; |
166 | |
167 | int rosecmp(const rose_address *, const rose_address *); |
168 | int rosecmpm(const rose_address *, const rose_address *, unsigned short); |
169 | char *rose2asc(char *buf, const rose_address *); |
170 | struct sock *rose_find_socket(unsigned int, struct rose_neigh *); |
171 | void rose_kill_by_neigh(struct rose_neigh *); |
172 | unsigned int rose_new_lci(struct rose_neigh *); |
173 | int rose_rx_call_request(struct sk_buff *, struct net_device *, |
174 | struct rose_neigh *, unsigned int); |
175 | void rose_destroy_socket(struct sock *); |
176 | |
177 | /* rose_dev.c */ |
178 | void rose_setup(struct net_device *); |
179 | |
180 | /* rose_in.c */ |
181 | int rose_process_rx_frame(struct sock *, struct sk_buff *); |
182 | |
183 | /* rose_link.c */ |
184 | void rose_start_ftimer(struct rose_neigh *); |
185 | void rose_stop_ftimer(struct rose_neigh *); |
186 | void rose_stop_t0timer(struct rose_neigh *); |
187 | int rose_ftimer_running(struct rose_neigh *); |
188 | void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, |
189 | unsigned short); |
190 | void rose_transmit_clear_request(struct rose_neigh *, unsigned int, |
191 | unsigned char, unsigned char); |
192 | void rose_transmit_link(struct sk_buff *, struct rose_neigh *); |
193 | |
194 | /* rose_loopback.c */ |
195 | void rose_loopback_init(void); |
196 | void rose_loopback_clear(void); |
197 | int rose_loopback_queue(struct sk_buff *, struct rose_neigh *); |
198 | |
199 | /* rose_out.c */ |
200 | void rose_kick(struct sock *); |
201 | void rose_enquiry_response(struct sock *); |
202 | |
203 | /* rose_route.c */ |
204 | extern struct rose_neigh *rose_loopback_neigh; |
205 | extern const struct seq_operations rose_neigh_seqops; |
206 | extern const struct seq_operations rose_node_seqops; |
207 | extern struct seq_operations rose_route_seqops; |
208 | |
209 | void rose_add_loopback_neigh(void); |
210 | int __must_check rose_add_loopback_node(const rose_address *); |
211 | void rose_del_loopback_node(const rose_address *); |
212 | void rose_rt_device_down(struct net_device *); |
213 | void rose_link_device_down(struct net_device *); |
214 | struct net_device *rose_dev_first(void); |
215 | struct net_device *rose_dev_get(rose_address *); |
216 | struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *); |
217 | struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, |
218 | unsigned char *, int); |
219 | int rose_rt_ioctl(unsigned int, void __user *); |
220 | void rose_link_failed(ax25_cb *, int); |
221 | int rose_route_frame(struct sk_buff *, ax25_cb *); |
222 | void rose_rt_free(void); |
223 | |
224 | /* rose_subr.c */ |
225 | void rose_clear_queues(struct sock *); |
226 | void rose_frames_acked(struct sock *, unsigned short); |
227 | void rose_requeue_frames(struct sock *); |
228 | int rose_validate_nr(struct sock *, unsigned short); |
229 | void rose_write_internal(struct sock *, int); |
230 | int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *); |
231 | int rose_parse_facilities(unsigned char *, unsigned int, |
232 | struct rose_facilities_struct *); |
233 | void rose_disconnect(struct sock *, int, int, int); |
234 | |
235 | /* rose_timer.c */ |
236 | void rose_start_heartbeat(struct sock *); |
237 | void rose_start_t1timer(struct sock *); |
238 | void rose_start_t2timer(struct sock *); |
239 | void rose_start_t3timer(struct sock *); |
240 | void rose_start_hbtimer(struct sock *); |
241 | void rose_start_idletimer(struct sock *); |
242 | void rose_stop_heartbeat(struct sock *); |
243 | void rose_stop_timer(struct sock *); |
244 | void rose_stop_idletimer(struct sock *); |
245 | |
246 | /* sysctl_net_rose.c */ |
247 | void rose_register_sysctl(void); |
248 | void rose_unregister_sysctl(void); |
249 | |
250 | #endif |
251 | |