| /* | |
| * 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 |