1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 /* 1 /*
3 * Declarations of NET/ROM type objects. 2 * Declarations of NET/ROM type objects.
4 * 3 *
5 * Jonathan Naylor G4KLX 9/4/95 4 * Jonathan Naylor G4KLX 9/4/95
6 */ 5 */
7 6
8 #ifndef _NETROM_H 7 #ifndef _NETROM_H
9 #define _NETROM_H 8 #define _NETROM_H
10 <<
11 #include <linux/netrom.h> 9 #include <linux/netrom.h>
12 #include <linux/list.h> 10 #include <linux/list.h>
13 #include <linux/slab.h> <<
14 #include <net/sock.h> <<
15 #include <linux/refcount.h> <<
16 #include <linux/seq_file.h> <<
17 #include <net/ax25.h> <<
18 11
19 #define NR_NETWORK_LEN 15 12 #define NR_NETWORK_LEN 15
20 #define NR_TRANSPORT_LEN 5 13 #define NR_TRANSPORT_LEN 5
21 14
22 #define NR_PROTO_IP 0x0C 15 #define NR_PROTO_IP 0x0C
23 16
24 #define NR_PROTOEXT 0x00 17 #define NR_PROTOEXT 0x00
25 #define NR_CONNREQ 0x01 18 #define NR_CONNREQ 0x01
26 #define NR_CONNACK 0x02 19 #define NR_CONNACK 0x02
27 #define NR_DISCREQ 0x03 20 #define NR_DISCREQ 0x03
28 #define NR_DISCACK 0x04 21 #define NR_DISCACK 0x04
29 #define NR_INFO 0x05 22 #define NR_INFO 0x05
30 #define NR_INFOACK 0x06 23 #define NR_INFOACK 0x06
31 #define NR_RESET 0x07 <<
32 24
33 #define NR_CHOKE_FLAG 0x80 25 #define NR_CHOKE_FLAG 0x80
34 #define NR_NAK_FLAG 0x40 26 #define NR_NAK_FLAG 0x40
35 #define NR_MORE_FLAG 0x20 27 #define NR_MORE_FLAG 0x20
36 28
37 /* Define Link State constants. */ 29 /* Define Link State constants. */
38 enum { 30 enum {
39 NR_STATE_0, 31 NR_STATE_0,
40 NR_STATE_1, 32 NR_STATE_1,
41 NR_STATE_2, 33 NR_STATE_2,
42 NR_STATE_3 34 NR_STATE_3
43 }; 35 };
44 36
45 #define NR_COND_ACK_PENDING 0x01 37 #define NR_COND_ACK_PENDING 0x01
46 #define NR_COND_REJECT 0x02 38 #define NR_COND_REJECT 0x02
47 #define NR_COND_PEER_RX_BUSY 0x04 39 #define NR_COND_PEER_RX_BUSY 0x04
48 #define NR_COND_OWN_RX_BUSY 0x08 40 #define NR_COND_OWN_RX_BUSY 0x08
49 41
50 #define NR_DEFAULT_T1 120000 !! 42 #define NR_DEFAULT_T1 (120 * HZ) /* Outstanding frames - 120 seconds */
51 #define NR_DEFAULT_T2 5000 !! 43 #define NR_DEFAULT_T2 (5 * HZ) /* Response delay - 5 seconds */
52 #define NR_DEFAULT_N2 3 44 #define NR_DEFAULT_N2 3 /* Number of Retries - 3 */
53 #define NR_DEFAULT_T4 180000 !! 45 #define NR_DEFAULT_T4 (180 * HZ) /* Busy Delay - 180 seconds */
54 #define NR_DEFAULT_IDLE 0 !! 46 #define NR_DEFAULT_IDLE (0 * 60 * HZ) /* No Activity Timeout - none */
55 #define NR_DEFAULT_WINDOW 4 47 #define NR_DEFAULT_WINDOW 4 /* Default Window Size - 4 */
56 #define NR_DEFAULT_OBS 6 48 #define NR_DEFAULT_OBS 6 /* Default Obsolescence Count - 6 */
57 #define NR_DEFAULT_QUAL 10 49 #define NR_DEFAULT_QUAL 10 /* Default Neighbour Quality - 10 */
58 #define NR_DEFAULT_TTL 16 50 #define NR_DEFAULT_TTL 16 /* Default Time To Live - 16 */
59 #define NR_DEFAULT_ROUTING 1 51 #define NR_DEFAULT_ROUTING 1 /* Is routing enabled ? */
60 #define NR_DEFAULT_FAILS 2 52 #define NR_DEFAULT_FAILS 2 /* Link fails until route fails */
61 #define NR_DEFAULT_RESET 0 <<
62 53
63 #define NR_MODULUS 256 54 #define NR_MODULUS 256
64 #define NR_MAX_WINDOW_SIZE 127 55 #define NR_MAX_WINDOW_SIZE 127 /* Maximum Window Allowable - 127 */
65 #define NR_MAX_PACKET_SIZE 236 56 #define NR_MAX_PACKET_SIZE 236 /* Maximum Packet Length - 236 */
66 57
67 struct nr_sock { !! 58 typedef struct {
68 struct sock sock; <<
69 ax25_address user_addr, sou 59 ax25_address user_addr, source_addr, dest_addr;
70 struct net_device *devic 60 struct net_device *device;
71 unsigned char my_index, my 61 unsigned char my_index, my_id;
72 unsigned char your_index, yo 62 unsigned char your_index, your_id;
73 unsigned char state, conditi 63 unsigned char state, condition, bpqext, window;
74 unsigned short vs, vr, va, vl 64 unsigned short vs, vr, va, vl;
75 unsigned char n2, n2count; 65 unsigned char n2, n2count;
76 unsigned long t1, t2, t4, id 66 unsigned long t1, t2, t4, idle;
77 unsigned short fraglen; 67 unsigned short fraglen;
78 struct timer_list t1timer; 68 struct timer_list t1timer;
79 struct timer_list t2timer; 69 struct timer_list t2timer;
80 struct timer_list t4timer; 70 struct timer_list t4timer;
81 struct timer_list idletimer; 71 struct timer_list idletimer;
82 struct sk_buff_head ack_queue; 72 struct sk_buff_head ack_queue;
83 struct sk_buff_head reseq_queue; 73 struct sk_buff_head reseq_queue;
84 struct sk_buff_head frag_queue; 74 struct sk_buff_head frag_queue;
85 }; !! 75 struct sock *sk; /* Backlink to socket */
>> 76 } nr_cb;
86 77
87 #define nr_sk(sk) ((struct nr_sock *)(sk)) !! 78 #define nr_sk(__sk) ((nr_cb *)(__sk)->sk_protinfo)
88 79
89 struct nr_neigh { 80 struct nr_neigh {
90 struct hlist_node neigh_node; 81 struct hlist_node neigh_node;
91 ax25_address callsign; 82 ax25_address callsign;
92 ax25_digi *digipeat; 83 ax25_digi *digipeat;
93 ax25_cb *ax25; 84 ax25_cb *ax25;
94 struct net_device *dev; 85 struct net_device *dev;
95 unsigned char quality; 86 unsigned char quality;
96 unsigned char locked; 87 unsigned char locked;
97 unsigned short count; 88 unsigned short count;
98 unsigned int number; 89 unsigned int number;
99 unsigned char failed; 90 unsigned char failed;
100 refcount_t refcount; !! 91 atomic_t refcount;
101 }; 92 };
102 93
103 struct nr_route { 94 struct nr_route {
104 unsigned char quality; 95 unsigned char quality;
105 unsigned char obs_count; 96 unsigned char obs_count;
106 struct nr_neigh *neighbour; 97 struct nr_neigh *neighbour;
107 }; 98 };
108 99
109 struct nr_node { 100 struct nr_node {
110 struct hlist_node node_node; 101 struct hlist_node node_node;
111 ax25_address callsign; 102 ax25_address callsign;
112 char mnemonic[7]; 103 char mnemonic[7];
113 unsigned char which; 104 unsigned char which;
114 unsigned char count; 105 unsigned char count;
115 struct nr_route routes[3]; 106 struct nr_route routes[3];
116 refcount_t refcount; !! 107 atomic_t refcount;
117 spinlock_t node_lock; 108 spinlock_t node_lock;
118 }; 109 };
119 110
120 /********************************************* 111 /*********************************************************************
121 * nr_node & nr_neigh lists, refcounting 112 * nr_node & nr_neigh lists, refcounting and locking
122 ********************************************* 113 *********************************************************************/
123 114
>> 115 extern struct hlist_head nr_node_list;
>> 116 extern struct hlist_head nr_neigh_list;
>> 117
124 #define nr_node_hold(__nr_node) \ 118 #define nr_node_hold(__nr_node) \
125 refcount_inc(&((__nr_node)->refcount)) !! 119 atomic_inc(&((__nr_node)->refcount))
126 120
127 static __inline__ void nr_node_put(struct nr_n 121 static __inline__ void nr_node_put(struct nr_node *nr_node)
128 { 122 {
129 if (refcount_dec_and_test(&nr_node->re !! 123 if (atomic_dec_and_test(&nr_node->refcount)) {
130 kfree(nr_node); 124 kfree(nr_node);
131 } 125 }
132 } 126 }
133 127
134 #define nr_neigh_hold(__nr_neigh) \ 128 #define nr_neigh_hold(__nr_neigh) \
135 refcount_inc(&((__nr_neigh)->refcount) !! 129 atomic_inc(&((__nr_neigh)->refcount))
136 130
137 static __inline__ void nr_neigh_put(struct nr_ 131 static __inline__ void nr_neigh_put(struct nr_neigh *nr_neigh)
138 { 132 {
139 if (refcount_dec_and_test(&nr_neigh->r !! 133 if (atomic_dec_and_test(&nr_neigh->refcount)) {
140 if (nr_neigh->ax25) !! 134 if (nr_neigh->digipeat != NULL)
141 ax25_cb_put(nr_neigh-> !! 135 kfree(nr_neigh->digipeat);
142 kfree(nr_neigh->digipeat); <<
143 kfree(nr_neigh); 136 kfree(nr_neigh);
144 } 137 }
145 } 138 }
146 139
147 /* nr_node_lock and nr_node_unlock also hold/p 140 /* nr_node_lock and nr_node_unlock also hold/put the node's refcounter.
148 */ 141 */
149 static __inline__ void nr_node_lock(struct nr_ 142 static __inline__ void nr_node_lock(struct nr_node *nr_node)
150 { 143 {
151 nr_node_hold(nr_node); 144 nr_node_hold(nr_node);
152 spin_lock_bh(&nr_node->node_lock); 145 spin_lock_bh(&nr_node->node_lock);
153 } 146 }
154 147
155 static __inline__ void nr_node_unlock(struct n 148 static __inline__ void nr_node_unlock(struct nr_node *nr_node)
156 { 149 {
157 spin_unlock_bh(&nr_node->node_lock); 150 spin_unlock_bh(&nr_node->node_lock);
158 nr_node_put(nr_node); 151 nr_node_put(nr_node);
159 } 152 }
160 153
161 #define nr_neigh_for_each(__nr_neigh, list) \ !! 154 #define nr_neigh_for_each(__nr_neigh, node, list) \
162 hlist_for_each_entry(__nr_neigh, list, !! 155 hlist_for_each_entry(__nr_neigh, node, list, neigh_node)
163 156
164 #define nr_neigh_for_each_safe(__nr_neigh, nod !! 157 #define nr_neigh_for_each_safe(__nr_neigh, node, node2, list) \
165 hlist_for_each_entry_safe(__nr_neigh, !! 158 hlist_for_each_entry_safe(__nr_neigh, node, node2, list, neigh_node)
166 159
167 #define nr_node_for_each(__nr_node, list) \ !! 160 #define nr_node_for_each(__nr_node, node, list) \
168 hlist_for_each_entry(__nr_node, list, !! 161 hlist_for_each_entry(__nr_node, node, list, node_node)
169 162
170 #define nr_node_for_each_safe(__nr_node, node2 !! 163 #define nr_node_for_each_safe(__nr_node, node, node2, list) \
171 hlist_for_each_entry_safe(__nr_node, n !! 164 hlist_for_each_entry_safe(__nr_node, node, node2, list, node_node)
172 165
173 166
174 /********************************************* 167 /*********************************************************************/
175 168
176 /* af_netrom.c */ 169 /* af_netrom.c */
177 extern int sysctl_netrom_default_path_quality 170 extern int sysctl_netrom_default_path_quality;
178 extern int sysctl_netrom_obsolescence_count_i 171 extern int sysctl_netrom_obsolescence_count_initialiser;
179 extern int sysctl_netrom_network_ttl_initiali 172 extern int sysctl_netrom_network_ttl_initialiser;
180 extern int sysctl_netrom_transport_timeout; 173 extern int sysctl_netrom_transport_timeout;
181 extern int sysctl_netrom_transport_maximum_tr 174 extern int sysctl_netrom_transport_maximum_tries;
182 extern int sysctl_netrom_transport_acknowledg 175 extern int sysctl_netrom_transport_acknowledge_delay;
183 extern int sysctl_netrom_transport_busy_delay 176 extern int sysctl_netrom_transport_busy_delay;
184 extern int sysctl_netrom_transport_requested_ 177 extern int sysctl_netrom_transport_requested_window_size;
185 extern int sysctl_netrom_transport_no_activit 178 extern int sysctl_netrom_transport_no_activity_timeout;
186 extern int sysctl_netrom_routing_control; 179 extern int sysctl_netrom_routing_control;
187 extern int sysctl_netrom_link_fails_count; 180 extern int sysctl_netrom_link_fails_count;
188 extern int sysctl_netrom_reset_circuit; !! 181 extern int nr_rx_frame(struct sk_buff *, struct net_device *);
189 !! 182 extern void nr_destroy_socket(struct sock *);
190 int nr_rx_frame(struct sk_buff *, struct net_d <<
191 void nr_destroy_socket(struct sock *); <<
192 183
193 /* nr_dev.c */ 184 /* nr_dev.c */
194 int nr_rx_ip(struct sk_buff *, struct net_devi !! 185 extern int nr_rx_ip(struct sk_buff *, struct net_device *);
195 void nr_setup(struct net_device *); !! 186 extern void nr_setup(struct net_device *);
196 187
197 /* nr_in.c */ 188 /* nr_in.c */
198 int nr_process_rx_frame(struct sock *, struct !! 189 extern int nr_process_rx_frame(struct sock *, struct sk_buff *);
199 190
200 /* nr_loopback.c */ 191 /* nr_loopback.c */
201 void nr_loopback_init(void); !! 192 extern void nr_loopback_init(void);
202 void nr_loopback_clear(void); !! 193 extern void nr_loopback_clear(void);
203 int nr_loopback_queue(struct sk_buff *); !! 194 extern int nr_loopback_queue(struct sk_buff *);
204 195
205 /* nr_out.c */ 196 /* nr_out.c */
206 void nr_output(struct sock *, struct sk_buff * !! 197 extern void nr_output(struct sock *, struct sk_buff *);
207 void nr_send_nak_frame(struct sock *); !! 198 extern void nr_send_nak_frame(struct sock *);
208 void nr_kick(struct sock *); !! 199 extern void nr_kick(struct sock *);
209 void nr_transmit_buffer(struct sock *, struct !! 200 extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
210 void nr_establish_data_link(struct sock *); !! 201 extern void nr_establish_data_link(struct sock *);
211 void nr_enquiry_response(struct sock *); !! 202 extern void nr_enquiry_response(struct sock *);
212 void nr_check_iframes_acked(struct sock *, uns !! 203 extern void nr_check_iframes_acked(struct sock *, unsigned short);
213 204
214 /* nr_route.c */ 205 /* nr_route.c */
215 void nr_rt_device_down(struct net_device *); !! 206 extern void nr_rt_device_down(struct net_device *);
216 struct net_device *nr_dev_first(void); !! 207 extern struct net_device *nr_dev_first(void);
217 struct net_device *nr_dev_get(ax25_address *); !! 208 extern struct net_device *nr_dev_get(ax25_address *);
218 int nr_rt_ioctl(unsigned int, void __user *); !! 209 extern int nr_rt_ioctl(unsigned int, void *);
219 void nr_link_failed(ax25_cb *, int); !! 210 extern void nr_link_failed(ax25_cb *, int);
220 int nr_route_frame(struct sk_buff *, ax25_cb * !! 211 extern int nr_route_frame(struct sk_buff *, ax25_cb *);
221 extern const struct seq_operations nr_node_seq !! 212 extern struct file_operations nr_nodes_fops;
222 extern const struct seq_operations nr_neigh_se !! 213 extern struct file_operations nr_neigh_fops;
223 void nr_rt_free(void); !! 214 extern void nr_rt_free(void);
224 215
225 /* nr_subr.c */ 216 /* nr_subr.c */
226 void nr_clear_queues(struct sock *); !! 217 extern void nr_clear_queues(struct sock *);
227 void nr_frames_acked(struct sock *, unsigned s !! 218 extern void nr_frames_acked(struct sock *, unsigned short);
228 void nr_requeue_frames(struct sock *); !! 219 extern void nr_requeue_frames(struct sock *);
229 int nr_validate_nr(struct sock *, unsigned sho !! 220 extern int nr_validate_nr(struct sock *, unsigned short);
230 int nr_in_rx_window(struct sock *, unsigned sh !! 221 extern int nr_in_rx_window(struct sock *, unsigned short);
231 void nr_write_internal(struct sock *, int); !! 222 extern void nr_write_internal(struct sock *, int);
232 !! 223 extern void nr_transmit_refusal(struct sk_buff *, int);
233 void __nr_transmit_reply(struct sk_buff *skb, !! 224 extern void nr_disconnect(struct sock *, int);
234 <<
235 /* <<
236 * This routine is called when a Connect Ackno <<
237 * set is needed to refuse a connection. <<
238 */ <<
239 #define nr_transmit_refusal(skb, mine) <<
240 do { <<
241 __nr_transmit_reply((skb), (mine), NR_ <<
242 } while (0) <<
243 <<
244 /* <<
245 * This routine is called when we don't have a <<
246 * NET/ROM packet. This is an G8PZT Xrouter e <<
247 */ <<
248 #define nr_transmit_reset(skb, mine) <<
249 do { <<
250 __nr_transmit_reply((skb), (mine), NR_ <<
251 } while (0) <<
252 <<
253 void nr_disconnect(struct sock *, int); <<
254 225
255 /* nr_timer.c */ 226 /* nr_timer.c */
256 void nr_init_timers(struct sock *sk); !! 227 extern void nr_start_heartbeat(struct sock *);
257 void nr_start_heartbeat(struct sock *); !! 228 extern void nr_start_t1timer(struct sock *);
258 void nr_start_t1timer(struct sock *); !! 229 extern void nr_start_t2timer(struct sock *);
259 void nr_start_t2timer(struct sock *); !! 230 extern void nr_start_t4timer(struct sock *);
260 void nr_start_t4timer(struct sock *); !! 231 extern void nr_start_idletimer(struct sock *);
261 void nr_start_idletimer(struct sock *); !! 232 extern void nr_stop_heartbeat(struct sock *);
262 void nr_stop_heartbeat(struct sock *); !! 233 extern void nr_stop_t1timer(struct sock *);
263 void nr_stop_t1timer(struct sock *); !! 234 extern void nr_stop_t2timer(struct sock *);
264 void nr_stop_t2timer(struct sock *); !! 235 extern void nr_stop_t4timer(struct sock *);
265 void nr_stop_t4timer(struct sock *); !! 236 extern void nr_stop_idletimer(struct sock *);
266 void nr_stop_idletimer(struct sock *); !! 237 extern int nr_t1timer_running(struct sock *);
267 int nr_t1timer_running(struct sock *); <<
268 238
269 /* sysctl_net_netrom.c */ 239 /* sysctl_net_netrom.c */
270 int nr_register_sysctl(void); !! 240 extern void nr_register_sysctl(void);
271 void nr_unregister_sysctl(void); !! 241 extern void nr_unregister_sysctl(void);
272 242
273 #endif 243 #endif
274 244
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