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freebsd/usr.sbin/ppp/hdlc.h

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Convert IIJ copyrights to BSD copyrights. Approved by: Toshiharu OHNO <tohno@sirius.ocn.ne.jp>
2001-06-13 21:52:19 +00:00
/*-
spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
2023-05-10 15:40:58 +00:00
* SPDX-License-Identifier: BSD-2-Clause
various: general adoption of SPDX licensing ID tags. 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.
2017-11-27 15:37:16 +00:00
*
Convert IIJ copyrights to BSD copyrights. Approved by: Toshiharu OHNO <tohno@sirius.ocn.ne.jp>
2001-06-13 21:52:19 +00:00
* Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
* based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
* Internet Initiative Japan, Inc (IIJ)
* All rights reserved.
1995-01-31 06:29:58 +00:00
*
Convert IIJ copyrights to BSD copyrights. Approved by: Toshiharu OHNO <tohno@sirius.ocn.ne.jp>
2001-06-13 21:52:19 +00:00
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
1995-01-31 06:29:58 +00:00
*
Convert IIJ copyrights to BSD copyrights. Approved by: Toshiharu OHNO <tohno@sirius.ocn.ne.jp>
2001-06-13 21:52:19 +00:00
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
1995-01-31 06:29:58 +00:00
*/
/*
* Definition for Async HDLC
*/
Make the code format more in line with style(9). Update loadalias to use the new libalias api. Update to version 1.1.
1997-08-25 00:29:32 +00:00
#define HDLC_SYN 0x7e /* SYNC character */
#define HDLC_ESC 0x7d /* Escape character */
#define HDLC_XOR 0x20 /* Modifier value */
1995-01-31 06:29:58 +00:00
#define HDLC_ADDR 0xff
#define HDLC_UI 0x03
/*
* Definition for HDLC Frame Check Sequence
*/
Make the code format more in line with style(9). Update loadalias to use the new libalias api. Update to version 1.1.
1997-08-25 00:29:32 +00:00
#define INITFCS 0xffff /* Initial value for FCS computation */
#define GOODFCS 0xf0b8 /* Good FCS value */
1995-01-31 06:29:58 +00:00
#define DEF_MRU 1500
Increase M_MAXLEN from 2048 - sizeof struct mbuf to 4096 - sizeof struct mbuf, and set MAX_MRU and MAX_MTU back to 2048. 2048 is big enough as an MTU/MRU, but we need to be able to allocate larger mbufs after reassembling IP fragments.
1999-12-30 13:27:15 +00:00
#define MAX_MRU 2048
1995-01-31 06:29:58 +00:00
#define MIN_MRU 296
Implement "set mtu" command to allow the client to reduce the interface mtu. Allow max mru spec of 16k. Add "show m[rt]u" ability.
1997-06-01 01:13:04 +00:00
#define DEF_MTU 0 /* whatever peer says */
Increase M_MAXLEN from 2048 - sizeof struct mbuf to 4096 - sizeof struct mbuf, and set MAX_MRU and MAX_MTU back to 2048. 2048 is big enough as an MTU/MRU, but we need to be able to allocate larger mbufs after reassembling IP fragments.
1999-12-30 13:27:15 +00:00
#define MAX_MTU 2048
Implement "set mtu" command to allow the client to reduce the interface mtu. Allow max mru spec of 16k. Add "show m[rt]u" ability.
1997-06-01 01:13:04 +00:00
#define MIN_MTU 296
Create a new MP branch for `multilink protocol'. Do lots of initial shuffling and grouping. Submitted by: Eivind Eklund <perhaps@yes.no>
1998-01-29 00:49:32 +00:00
struct physical;
Create `struct link' - the logical link from which `struct physical' (and the future `struct logical') are derived.
1998-01-30 19:46:07 +00:00
struct link;
o Move alias function pointers into loadalias.c o Move Var*Version into command.c o Remove struct pppVars (and there was much rejoicing) ! o Forward-decl some structs in .h files to avoid include ordering requirements and remove a few more redundant #includes.
1998-04-07 00:54:26 +00:00
struct lcp;
struct bundle;
struct mbuf;
struct cmdargs;
1995-01-31 06:29:58 +00:00
o Create `struct hdlc' - a part of struct physical. o Move our LCP report timer into struct hdlc - it's really a hdlc timer (fcs errors etc). o Make `show hdlc' require context and make the output more friendly. o Remove all non-const globals from hdlc.c o Output peer-rejected protocols by name - not just ones that we reject.
1998-02-18 19:35:59 +00:00
struct hdlc {
struct pppTimer ReportTimer;
struct {
int badfcs;
int badaddr;
int badcommand;
int unknownproto;
} laststats, stats;
struct {
De-staticise LQR information Increment OutPackets for any packet - not just LQRs MFC: o Fix a few comment typos. o Fix ``set timeout'' usage message and documentation. o Change ifOutPackets, ifOutOctets and ifOutLQRs to `u_int32_t's so that they wrap correctly. o Put the LQR in network byte order using the correct struct size (sizeof u_int32_t, not sizeof u_long). o Wrap LQR ECHO counters correctly. o Don't increment OutLQR count if the last LQR hasn't been replied to. o Initialise last received LQR in StartLqm. o Don't start the LQR timer if we're `disabled' and `accepted'. o Generate LQR responses when both sides are using a timer and we're not going to send our next LQR before the peers max timeout.
1998-03-13 00:44:26 +00:00
struct lcp *owner; /* parent LCP */
struct pppTimer timer; /* When to send */
int method; /* bit-mask for LQM_* from lqr.h */
Re-implement LQM, this time according to the rfc. PR: 11293 MFC after: 4 weeks
2004-06-30 12:24:56 +00:00
u_int32_t ifOutUniPackets; /* Packets sent by me */
u_int32_t ifOutOctets; /* Octets sent by me */
u_int32_t ifInUniPackets; /* Packets received from peer */
u_int32_t ifInDiscards; /* Discards */
u_int32_t ifInErrors; /* Errors */
u_int32_t ifInOctets; /* Octets received from peer (unused) */
De-staticise LQR information Increment OutPackets for any packet - not just LQRs MFC: o Fix a few comment typos. o Fix ``set timeout'' usage message and documentation. o Change ifOutPackets, ifOutOctets and ifOutLQRs to `u_int32_t's so that they wrap correctly. o Put the LQR in network byte order using the correct struct size (sizeof u_int32_t, not sizeof u_long). o Wrap LQR ECHO counters correctly. o Don't increment OutLQR count if the last LQR hasn't been replied to. o Initialise last received LQR in StartLqm. o Don't start the LQR timer if we're `disabled' and `accepted'. o Generate LQR responses when both sides are using a timer and we're not going to send our next LQR before the peers max timeout.
1998-03-13 00:44:26 +00:00
struct {
Re-implement LQM, this time according to the rfc. PR: 11293 MFC after: 4 weeks
2004-06-30 12:24:56 +00:00
u_int32_t InGoodOctets; /* Good octets received from peer */
De-staticise LQR information Increment OutPackets for any packet - not just LQRs MFC: o Fix a few comment typos. o Fix ``set timeout'' usage message and documentation. o Change ifOutPackets, ifOutOctets and ifOutLQRs to `u_int32_t's so that they wrap correctly. o Put the LQR in network byte order using the correct struct size (sizeof u_int32_t, not sizeof u_long). o Wrap LQR ECHO counters correctly. o Don't increment OutLQR count if the last LQR hasn't been replied to. o Initialise last received LQR in StartLqm. o Don't start the LQR timer if we're `disabled' and `accepted'. o Generate LQR responses when both sides are using a timer and we're not going to send our next LQR before the peers max timeout.
1998-03-13 00:44:26 +00:00
u_int32_t OutLQRs; /* LQRs sent by me */
Re-implement LQM, this time according to the rfc. PR: 11293 MFC after: 4 weeks
2004-06-30 12:24:56 +00:00
u_int32_t InLQRs; /* LQRs received from peer */
struct lqrsavedata Save; /* Our last LQR */
struct lqrsavedata prevSave; /* Our last-but-one LQR (analysis) */
De-staticise LQR information Increment OutPackets for any packet - not just LQRs MFC: o Fix a few comment typos. o Fix ``set timeout'' usage message and documentation. o Change ifOutPackets, ifOutOctets and ifOutLQRs to `u_int32_t's so that they wrap correctly. o Put the LQR in network byte order using the correct struct size (sizeof u_int32_t, not sizeof u_long). o Wrap LQR ECHO counters correctly. o Don't increment OutLQR count if the last LQR hasn't been replied to. o Initialise last received LQR in StartLqm. o Don't start the LQR timer if we're `disabled' and `accepted'. o Generate LQR responses when both sides are using a timer and we're not going to send our next LQR before the peers max timeout.
1998-03-13 00:44:26 +00:00
struct lqrdata peer; /* Last LQR from peer */
int peer_timeout; /* peers max lqr timeout */
int resent; /* Resent last packet `resent' times */
} lqr;
struct {
u_int32_t seq_sent; /* last echo sent */
u_int32_t seq_recv; /* last echo received */
} echo;
} lqm;
o Create `struct hdlc' - a part of struct physical. o Move our LCP report timer into struct hdlc - it's really a hdlc timer (fcs errors etc). o Make `show hdlc' require context and make the output more friendly. o Remove all non-const globals from hdlc.c o Output peer-rejected protocols by name - not just ones that we reject.
1998-02-18 19:35:59 +00:00
};
o Defer setting up pap/chap based IP numbers & labels until after we've determined if we're going to join another ppp invocation. o Make ``show link'' show all link details, and ``show links'' just give a list of links and their current status. o Show our current label in ``show bundle''. o Allow link cloning and removal as soon as our MRRU is set. o Make ``show lcp'' require context as nothing will ever change in our MP LCP (it's auto-configured as per rfc1990). o Initialise our LQM owner in hdlc_Init(). o Store our endpoint discriminator and authentication name at both the datalink and multilink level and compare them when we've finished AUTHENTICATE phase and before entering NETWORK phase. If they don't match, close the link again. Display the information in the appropriate ``show'' command. o Initialise datalink::phone and datalink::fsmp.object properly when we're cloning the link. o Show which link we're passing LQRs on in our diagnostics. o Reject endpoint discriminator REQs at the logical multilink level. o Remove the rest of our CARRIER and LINK logging setup.
1998-04-24 19:16:15 +00:00
extern void hdlc_Init(struct hdlc *, struct lcp *);
o Create `struct hdlc' - a part of struct physical. o Move our LCP report timer into struct hdlc - it's really a hdlc timer (fcs errors etc). o Make `show hdlc' require context and make the output more friendly. o Remove all non-const globals from hdlc.c o Output peer-rejected protocols by name - not just ones that we reject.
1998-02-18 19:35:59 +00:00
extern void hdlc_StartTimer(struct hdlc *);
extern void hdlc_StopTimer(struct hdlc *);
extern int hdlc_ReportStatus(struct cmdargs const *);
extern const char *hdlc_Protocol2Nam(u_short);
Add the `clone' and `remove' commands for creating and destroying links.
1998-04-05 22:48:25 +00:00
extern void hdlc_DecodePacket(struct bundle *, u_short, struct mbuf *,
struct link *);
o Create `struct hdlc' - a part of struct physical. o Move our LCP report timer into struct hdlc - it's really a hdlc timer (fcs errors etc). o Make `show hdlc' require context and make the output more friendly. o Remove all non-const globals from hdlc.c o Output peer-rejected protocols by name - not just ones that we reject.
1998-02-18 19:35:59 +00:00
o Redesign the layering mechanism and make the aliasing code part of the layering. We now ``stack'' layers as soon as we open the device (when we figure out what we're dealing with). A static set of `dispatch' routines are also declared for dealing with incoming packets after they've been `pulled' up through the stacked layers. Physical devices are now assigned handlers based on the device type when they're opened. For the moment there are three device types; ttys, execs and tcps. o Increment version number to 2.2 o Make an entry in [uw]tmp for non-tty -direct invocations (after pap/chap authentication). o Make throughput counters quad_t's o Account for the absolute number of mbuf malloc()s and free()s in ``show mem''. o ``show modem'' becomes ``show physical''.
1999-05-08 11:07:56 +00:00
extern u_short hdlc_Fcs(u_char *, size_t);
Make ppp WARNS=5 clean
2004-09-05 01:46:52 +00:00
extern int hdlc_Detect(u_char const **, unsigned, int);
#define hdlc_WrapperOctets() (2)
o Redesign the layering mechanism and make the aliasing code part of the layering. We now ``stack'' layers as soon as we open the device (when we figure out what we're dealing with). A static set of `dispatch' routines are also declared for dealing with incoming packets after they've been `pulled' up through the stacked layers. Physical devices are now assigned handlers based on the device type when they're opened. For the moment there are three device types; ttys, execs and tcps. o Increment version number to 2.2 o Make an entry in [uw]tmp for non-tty -direct invocations (after pap/chap authentication). o Make throughput counters quad_t's o Account for the absolute number of mbuf malloc()s and free()s in ``show mem''. o ``show modem'' becomes ``show physical''.
1999-05-08 11:07:56 +00:00
extern struct layer hdlclayer;
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