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| /* SPDX-License-Identifier: GPL-2.0-only */
| /*
| * Layer 2 defines
| *
| * Copyright 2008 by Karsten Keil <kkeil@novell.com>
| */
|
| #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
|
|
