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TOMOYO Linux Cross Reference
Linux/include/net/rose.h

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  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/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    /* each address is 10 digits */
 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 /* Define Link State constants. */
 49 
 50 enum {
 51         ROSE_STATE_0,                   /* Ready */
 52         ROSE_STATE_1,                   /* Awaiting Call Accepted */
 53         ROSE_STATE_2,                   /* Awaiting Clear Confirmation */
 54         ROSE_STATE_3,                   /* Data Transfer */
 55         ROSE_STATE_4,                   /* Awaiting Reset Confirmation */
 56         ROSE_STATE_5                    /* Deferred Call Acceptance */
 57 };
 58 
 59 #define ROSE_DEFAULT_T0                 180000          /* Default T10 T20 value */
 60 #define ROSE_DEFAULT_T1                 200000          /* Default T11 T21 value */
 61 #define ROSE_DEFAULT_T2                 180000          /* Default T12 T22 value */
 62 #define ROSE_DEFAULT_T3                 180000          /* Default T13 T23 value */
 63 #define ROSE_DEFAULT_HB                 5000            /* Default Holdback value */
 64 #define ROSE_DEFAULT_IDLE               0               /* No Activity Timeout - none */
 65 #define ROSE_DEFAULT_ROUTING            1               /* Default routing flag */
 66 #define ROSE_DEFAULT_FAIL_TIMEOUT       120000          /* Time until link considered usable */
 67 #define ROSE_DEFAULT_MAXVC              50              /* Maximum number of VCs per neighbour */
 68 #define ROSE_DEFAULT_WINDOW_SIZE        7               /* Default window size */
 69 
 70 #define ROSE_MODULUS                    8
 71 #define ROSE_MAX_PACKET_SIZE            251             /* Maximum packet size */
 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 /* af_rose.c */
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 /* rose_dev.c */
176 void rose_setup(struct net_device *);
177 
178 /* rose_in.c */
179 int rose_process_rx_frame(struct sock *, struct sk_buff *);
180 
181 /* rose_link.c */
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 /* rose_loopback.c */
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 /* rose_out.c */
198 void rose_kick(struct sock *);
199 void rose_enquiry_response(struct sock *);
200 
201 /* rose_route.c */
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 /* rose_subr.c */
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 /* rose_timer.c */
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 /* sysctl_net_rose.c */
245 void rose_register_sysctl(void);
246 void rose_unregister_sysctl(void);
247 
248 #endif
249 

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