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7 #ifndef _NETROM_H
8 #define _NETROM_H
9 #include <linux/netrom.h>
10
11 #define NR_NETWORK_LEN 15
12 #define NR_TRANSPORT_LEN 5
13
14 #define NR_PROTO_IP 0x0C
15
16 #define NR_PROTOEXT 0x00
17 #define NR_CONNREQ 0x01
18 #define NR_CONNACK 0x02
19 #define NR_DISCREQ 0x03
20 #define NR_DISCACK 0x04
21 #define NR_INFO 0x05
22 #define NR_INFOACK 0x06
23
24 #define NR_CHOKE_FLAG 0x80
25 #define NR_NAK_FLAG 0x40
26 #define NR_MORE_FLAG 0x20
27
28
29
30 #define NR_STATE_0 0
31 #define NR_STATE_1 1
32 #define NR_STATE_2 2
33 #define NR_STATE_3 3
34
35 #define NR_DEFAULT_T1 (120 * PR_SLOWHZ)
36 #define NR_DEFAULT_T2 (5 * PR_SLOWHZ)
37 #define NR_DEFAULT_N2 3
38 #define NR_DEFAULT_T4 (180 * PR_SLOWHZ)
39 #define NR_DEFAULT_WINDOW 4
40 #define NR_DEFAULT_OBS 6
41 #define NR_DEFAULT_QUAL 10
42 #define NR_DEFAULT_TTL 16
43 #define NR_MODULUS 256
44 #define NR_MAX_WINDOW_SIZE 127
45
46 typedef struct {
47 ax25_address user_addr, source_addr, dest_addr;
48 struct device *device;
49 unsigned char my_index, my_id;
50 unsigned char your_index, your_id;
51 unsigned char state, bpqext;
52 unsigned short vs, vr, va, vl;
53 unsigned char condition;
54 unsigned char n2, n2count;
55 unsigned short t1, t2, rtt;
56 unsigned short t1timer, t2timer, t4timer;
57 unsigned short fraglen;
58 struct sk_buff_head ack_queue;
59 struct sk_buff_head reseq_queue;
60 struct sk_buff_head frag_queue;
61 struct sock *sk;
62 } nr_cb;
63
64 struct nr_route {
65 unsigned char quality;
66 unsigned char obs_count;
67 unsigned short neighbour;
68 };
69
70 struct nr_node {
71 struct nr_node *next;
72 ax25_address callsign;
73 char mnemonic[7];
74 unsigned char which;
75 unsigned char count;
76 struct nr_route routes[3];
77 };
78
79 struct nr_neigh {
80 struct nr_neigh *next;
81 ax25_address callsign;
82 ax25_digi *digipeat;
83 struct device *dev;
84 unsigned char quality;
85 unsigned char locked;
86 unsigned short count;
87 unsigned short number;
88 };
89
90
91 extern struct nr_parms_struct nr_default;
92 extern int nr_rx_frame(struct sk_buff *, struct device *);
93 extern void nr_destroy_socket(struct sock *);
94 extern int nr_get_info(char *, char **, off_t, int);
95
96
97 extern int nr_rx_ip(struct sk_buff *, struct device *);
98 extern int nr_init(struct device *);
99
100 #include "nrcall.h"
101
102
103 extern int nr_process_rx_frame(struct sock *, struct sk_buff *);
104
105
106 extern void nr_output(struct sock *, struct sk_buff *);
107 extern void nr_send_nak_frame(struct sock *);
108 extern void nr_kick(struct sock *);
109 extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
110 extern void nr_nr_error_recovery(struct sock *);
111 extern void nr_establish_data_link(struct sock *);
112 extern void nr_enquiry_response(struct sock *);
113 extern void nr_check_iframes_acked(struct sock *, unsigned short);
114
115
116 extern void nr_rt_device_down(struct device *);
117 extern struct device *nr_dev_first(void);
118 extern struct device *nr_dev_get(ax25_address *);
119 extern int nr_rt_ioctl(unsigned int, void *);
120 extern void nr_link_failed(ax25_address *, struct device *);
121 extern int nr_route_frame(struct sk_buff *, ax25_cb *);
122 extern int nr_nodes_get_info(char *, char **, off_t, int);
123 extern int nr_neigh_get_info(char *, char **, off_t, int);
124
125
126 extern void nr_clear_queues(struct sock *);
127 extern void nr_frames_acked(struct sock *, unsigned short);
128 extern void nr_requeue_frames(struct sock *);
129 extern int nr_validate_nr(struct sock *, unsigned short);
130 extern int nr_in_rx_window(struct sock *, unsigned short);
131 extern void nr_write_internal(struct sock *, int);
132 extern void nr_transmit_dm(struct sk_buff *);
133 extern unsigned short nr_calculate_t1(struct sock *);
134 extern void nr_calculate_rtt(struct sock *);
135
136
137 extern void nr_set_timer(struct sock *);
138
139 #endif