| hdlc.h (26516) | hdlc.h (28679) |
|---|---|
| 1/* 2 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 3 * 4 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 5 * 6 * Redistribution and use in source and binary forms are permitted 7 * provided that the above copyright notice and this paragraph are 8 * duplicated in all such forms and that any documentation, 9 * advertising materials, and other materials related to such 10 * distribution and use acknowledge that the software was developed 11 * by the Internet Initiative Japan. The name of the 12 * IIJ may not be used to endorse or promote products derived 13 * from this software without specific prior written permission. 14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 16 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 17 * | 1/* 2 * Written by Toshiharu OHNO (tony-o@iij.ad.jp) 3 * 4 * Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd. 5 * 6 * Redistribution and use in source and binary forms are permitted 7 * provided that the above copyright notice and this paragraph are 8 * duplicated in all such forms and that any documentation, 9 * advertising materials, and other materials related to such 10 * distribution and use acknowledge that the software was developed 11 * by the Internet Initiative Japan. The name of the 12 * IIJ may not be used to endorse or promote products derived 13 * from this software without specific prior written permission. 14 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 16 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 17 * |
| 18 * $Id: hdlc.h,v 1.8 1997/06/01 11:35:02 brian Exp $ | 18 * $Id: hdlc.h,v 1.9 1997/06/09 03:27:22 brian Exp $ |
| 19 * 20 * TODO: 21 */ 22 23#ifndef _HDLC_H_ 24#define _HDLC_H_ 25 26/* 27 * Definition for Async HDLC 28 */ | 19 * 20 * TODO: 21 */ 22 23#ifndef _HDLC_H_ 24#define _HDLC_H_ 25 26/* 27 * Definition for Async HDLC 28 */ |
| 29#define HDLC_SYN 0x7e /* SYNC character */ 30#define HDLC_ESC 0x7d /* Escape character */ 31#define HDLC_XOR 0x20 /* Modifier value */ | 29#define HDLC_SYN 0x7e /* SYNC character */ 30#define HDLC_ESC 0x7d /* Escape character */ 31#define HDLC_XOR 0x20 /* Modifier value */ |
| 32 33#define HDLC_ADDR 0xff 34#define HDLC_UI 0x03 35/* 36 * Definition for HDLC Frame Check Sequence 37 */ | 32 33#define HDLC_ADDR 0xff 34#define HDLC_UI 0x03 35/* 36 * Definition for HDLC Frame Check Sequence 37 */ |
| 38#define INITFCS 0xffff /* Initial value for FCS computation */ 39#define GOODFCS 0xf0b8 /* Good FCS value */ | 38#define INITFCS 0xffff /* Initial value for FCS computation */ 39#define GOODFCS 0xf0b8 /* Good FCS value */ |
| 40 41#define DEF_MRU 1500 42#define MAX_MRU 2048 43#define MIN_MRU 296 44 45#define DEF_MTU 0 /* whatever peer says */ 46#define MAX_MTU 2048 47#define MIN_MTU 296 --- 5 unchanged lines hidden (view full) --- 53 * All IP frames have the same priority once they are compressed. 54 * IP frames stay on the IP queue till they can be sent on the 55 * link. They are compressed at that time. 56*/ 57#define PRI_NORMAL 0 /* Normal priority */ 58#define PRI_FAST 1 /* Fast (interractive) */ 59#define PRI_LINK 1 /* Urgent (LQR packets) */ 60 | 40 41#define DEF_MRU 1500 42#define MAX_MRU 2048 43#define MIN_MRU 296 44 45#define DEF_MTU 0 /* whatever peer says */ 46#define MAX_MTU 2048 47#define MIN_MTU 296 --- 5 unchanged lines hidden (view full) --- 53 * All IP frames have the same priority once they are compressed. 54 * IP frames stay on the IP queue till they can be sent on the 55 * link. They are compressed at that time. 56*/ 57#define PRI_NORMAL 0 /* Normal priority */ 58#define PRI_FAST 1 /* Fast (interractive) */ 59#define PRI_LINK 1 /* Urgent (LQR packets) */ 60 |
| 61unsigned char EscMap[33]; | 61extern u_char EscMap[33]; |
| 62 63void HdlcInit(void); 64void HdlcErrorCheck(void); | 62 63void HdlcInit(void); 64void HdlcErrorCheck(void); |
| 65void HdlcInput(struct mbuf *bp); 66void HdlcOutput(int pri, u_short proto, struct mbuf *bp); 67void AsyncOutput(int pri, struct mbuf *bp, int proto); | 65void HdlcInput(struct mbuf * bp); 66void HdlcOutput(int pri, u_short proto, struct mbuf * bp); 67void AsyncOutput(int pri, struct mbuf * bp, int proto); |
| 68u_short HdlcFcs(u_short, u_char *, int); 69void DecodePacket(u_short, struct mbuf *); | 68u_short HdlcFcs(u_short, u_char *, int); 69void DecodePacket(u_short, struct mbuf *); |
| 70 |
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| 70#endif | 71#endif |