1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
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* based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
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* Internet Initiative Japan, Inc (IIJ)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Definition for Async HDLC
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*/
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#define HDLC_SYN 0x7e /* SYNC character */
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#define HDLC_ESC 0x7d /* Escape character */
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#define HDLC_XOR 0x20 /* Modifier value */
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#define HDLC_ADDR 0xff
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#define HDLC_UI 0x03
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/*
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* Definition for HDLC Frame Check Sequence
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*/
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#define INITFCS 0xffff /* Initial value for FCS computation */
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#define GOODFCS 0xf0b8 /* Good FCS value */
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#define DEF_MRU 1500
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#define MAX_MRU 2048
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#define MIN_MRU 296
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#define DEF_MTU 0 /* whatever peer says */
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#define MAX_MTU 2048
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#define MIN_MTU 296
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struct physical;
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struct link;
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struct lcp;
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struct bundle;
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struct mbuf;
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struct cmdargs;
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struct hdlc {
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struct pppTimer ReportTimer;
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struct {
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int badfcs;
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int badaddr;
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int badcommand;
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int unknownproto;
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} laststats, stats;
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struct {
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struct lcp *owner; /* parent LCP */
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struct pppTimer timer; /* When to send */
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int method; /* bit-mask for LQM_* from lqr.h */
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u_int32_t ifOutUniPackets; /* Packets sent by me */
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u_int32_t ifOutOctets; /* Octets sent by me */
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u_int32_t ifInUniPackets; /* Packets received from peer */
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u_int32_t ifInDiscards; /* Discards */
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u_int32_t ifInErrors; /* Errors */
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u_int32_t ifInOctets; /* Octets received from peer (unused) */
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struct {
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u_int32_t InGoodOctets; /* Good octets received from peer */
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u_int32_t OutLQRs; /* LQRs sent by me */
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u_int32_t InLQRs; /* LQRs received from peer */
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struct lqrsavedata Save; /* Our last LQR */
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struct lqrsavedata prevSave; /* Our last-but-one LQR (analysis) */
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struct lqrdata peer; /* Last LQR from peer */
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int peer_timeout; /* peers max lqr timeout */
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int resent; /* Resent last packet `resent' times */
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} lqr;
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struct {
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u_int32_t seq_sent; /* last echo sent */
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u_int32_t seq_recv; /* last echo received */
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} echo;
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} lqm;
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};
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extern void hdlc_Init(struct hdlc *, struct lcp *);
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extern void hdlc_StartTimer(struct hdlc *);
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extern void hdlc_StopTimer(struct hdlc *);
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extern int hdlc_ReportStatus(struct cmdargs const *);
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extern const char *hdlc_Protocol2Nam(u_short);
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extern void hdlc_DecodePacket(struct bundle *, u_short, struct mbuf *,
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struct link *);
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extern u_short hdlc_Fcs(u_char *, size_t);
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extern int hdlc_Detect(u_char const **, unsigned, int);
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#define hdlc_WrapperOctets() (2)
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extern struct layer hdlclayer;
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