141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
/*
|
|
* 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, u_long);
|
|
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
|