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7 #ifndef _NETROM_H
8 #define _NETROM_H
9 #include <linux/netrom.h>
10
11 #define NR_PROTO_IP 0x0C
12
13 #define NR_PROTOEXT 0x00
14 #define NR_CONNREQ 0x01
15 #define NR_CONNACK 0x02
16 #define NR_DISCREQ 0x03
17 #define NR_DISCACK 0x04
18 #define NR_INFO 0x05
19 #define NR_INFOACK 0x06
20
21 #define NR_CHOKE_FLAG 0x80
22 #define NR_NAK_FLAG 0x40
23 #define NR_MORE_FLAG 0x20
24
25
26
27 #define NR_STATE_0 0
28 #define NR_STATE_1 1
29 #define NR_STATE_2 2
30 #define NR_STATE_3 3
31
32 #define NR_DEFAULT_T1 (120 * PR_SLOWHZ)
33 #define NR_DEFAULT_T2 (5 * PR_SLOWHZ)
34 #define NR_DEFAULT_N2 3
35 #define NR_DEFAULT_T4 (180 * PR_SLOWHZ)
36 #define NR_DEFAULT_WINDOW 4
37 #define NR_DEFAULT_OBS 6
38 #define NR_DEFAULT_QUAL 10
39 #define NR_DEFAULT_TTL 16
40 #define NR_MODULUS 256
41 #define NR_MAX_WINDOW_SIZE 127
42
43 typedef struct {
44 ax25_address user_addr, source_addr, dest_addr;
45 unsigned char my_index, my_id;
46 unsigned char your_index, your_id;
47 unsigned char state;
48 unsigned short vs, vr, va, vl;
49 unsigned char condition;
50 unsigned char n2, n2count;
51 unsigned short t1, t2, rtt;
52 unsigned short t1timer, t2timer, t4timer;
53 struct sk_buff_head ack_queue, reseq_queue;
54 struct sock *sk;
55 } nr_cb;
56
57 struct nr_route {
58 unsigned char quality;
59 unsigned char obs_count;
60 unsigned short neighbour;
61 };
62
63 struct nr_node {
64 struct nr_node *next;
65 ax25_address callsign;
66 char mnemonic[7];
67 unsigned char which;
68 unsigned char count;
69 struct nr_route routes[3];
70 };
71
72 struct nr_neigh {
73 struct nr_neigh *next;
74 ax25_address callsign;
75 struct device *dev;
76 unsigned char quality;
77 unsigned char locked;
78 unsigned short count;
79 unsigned short number;
80 };
81
82
83 extern struct nr_parms_struct nr_default;
84 extern int nr_rx_frame(struct sk_buff *, struct device *);
85 extern void nr_destroy_socket(struct sock *);
86 extern int nr_get_info(char *, char **, off_t, int);
87
88
89 extern int nr_rx_ip(struct sk_buff *, struct device *);
90 extern int nr_init(struct device *);
91
92 #include "nrcall.h"
93
94
95 extern int nr_process_rx_frame(struct sock *, struct sk_buff *);
96
97
98 extern int nr_output(struct sock *, struct sk_buff *);
99 extern void nr_send_nak_frame(struct sock *);
100 extern void nr_kick(struct sock *);
101 extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
102 extern void nr_nr_error_recovery(struct sock *);
103 extern void nr_establish_data_link(struct sock *);
104 extern void nr_enquiry_response(struct sock *);
105 extern void nr_check_iframes_acked(struct sock *, unsigned short);
106
107
108 extern void nr_rt_device_down(struct device *);
109 extern struct device *nr_dev_first(void);
110 extern struct device *nr_dev_get(ax25_address *);
111 extern int nr_rt_ioctl(unsigned int, void *);
112 extern void nr_link_failed(ax25_address *, struct device *);
113 extern int nr_route_frame(struct sk_buff *, struct device *);
114 extern int nr_nodes_get_info(char *, char **, off_t, int);
115 extern int nr_neigh_get_info(char *, char **, off_t, int);
116
117
118 extern void nr_clear_tx_queue(struct sock *);
119 extern void nr_frames_acked(struct sock *, unsigned short);
120 extern void nr_requeue_frames(struct sock *);
121 extern int nr_validate_nr(struct sock *, unsigned short);
122 extern int nr_in_rx_window(struct sock *, unsigned short);
123 extern void nr_write_internal(struct sock *, int);
124 extern void nr_transmit_dm(struct sk_buff *);
125 extern unsigned short nr_calculate_t1(struct sock *);
126 extern void nr_calculate_rtt(struct sock *);
127
128
129 extern void nr_set_timer(struct sock *);
130
131 #endif