1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Layer 2 defines
*
* Copyright 2008 by Karsten Keil <kkeil@novell.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/mISDNif.h>
#include <linux/skbuff.h>
#include "fsm.h"
#define MAX_WINDOW 8
struct manager {
struct mISDNchannel ch;
struct mISDNchannel bcast;
u_long options;
struct list_head layer2;
rwlock_t lock;
struct FsmInst deact;
struct FsmTimer datimer;
struct sk_buff_head sendq;
struct mISDNchannel *up;
u_int nextid;
u_int lastid;
};
struct teimgr {
int ri;
int rcnt;
struct FsmInst tei_m;
struct FsmTimer timer;
int tval, nval;
struct layer2 *l2;
struct manager *mgr;
};
struct laddr {
u_char A;
u_char B;
};
struct layer2 {
struct list_head list;
struct mISDNchannel ch;
u_long flag;
int id;
struct mISDNchannel *up;
signed char sapi;
signed char tei;
struct laddr addr;
u_int maxlen;
struct teimgr *tm;
u_int vs, va, vr;
int rc;
u_int window;
u_int sow;
struct FsmInst l2m;
struct FsmTimer t200, t203;
int T200, N200, T203;
u_int next_id;
u_int down_id;
struct sk_buff *windowar[MAX_WINDOW];
struct sk_buff_head i_queue;
struct sk_buff_head ui_queue;
struct sk_buff_head down_queue;
struct sk_buff_head tmp_queue;
};
enum {
ST_L2_1,
ST_L2_2,
ST_L2_3,
ST_L2_4,
ST_L2_5,
ST_L2_6,
ST_L2_7,
ST_L2_8,
};
#define L2_STATE_COUNT (ST_L2_8+1)
extern struct layer2 *create_l2(struct mISDNchannel *, u_int,
u_long, int, int);
extern int tei_l2(struct layer2 *, u_int, u_long arg);
/* from tei.c */
extern int l2_tei(struct layer2 *, u_int, u_long arg);
extern void TEIrelease(struct layer2 *);
extern int TEIInit(u_int *);
extern void TEIFree(void);
#define MAX_L2HEADER_LEN 4
#define RR 0x01
#define RNR 0x05
#define REJ 0x09
#define SABME 0x6f
#define SABM 0x2f
#define DM 0x0f
#define UI 0x03
#define DISC 0x43
#define UA 0x63
#define FRMR 0x87
#define XID 0xaf
#define CMD 0
#define RSP 1
#define LC_FLUSH_WAIT 1
#define FLG_LAPB 0
#define FLG_LAPD 1
#define FLG_ORIG 2
#define FLG_MOD128 3
#define FLG_PEND_REL 4
#define FLG_L3_INIT 5
#define FLG_T200_RUN 6
#define FLG_ACK_PEND 7
#define FLG_REJEXC 8
#define FLG_OWN_BUSY 9
#define FLG_PEER_BUSY 10
#define FLG_DCHAN_BUSY 11
#define FLG_L1_ACTIV 12
#define FLG_ESTAB_PEND 13
#define FLG_PTP 14
#define FLG_FIXED_TEI 15
#define FLG_L2BLOCK 16
#define FLG_L1_NOTREADY 17
#define FLG_LAPD_NET 18
|
