178 lines
6.4 KiB
C
178 lines
6.4 KiB
C
/* $NetBSD: ppp_defs.h,v 1.14 2020/04/04 19:46:01 is Exp $ */
|
|
/* Id: ppp_defs.h,v 1.11 1997/04/30 05:46:24 paulus Exp */
|
|
|
|
/*
|
|
* ppp_defs.h - PPP definitions.
|
|
*
|
|
* Copyright (c) 1989-2002 Paul Mackerras. All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* 3. The name(s) of the authors of this software must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission.
|
|
*
|
|
* 4. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by Paul Mackerras
|
|
* <paulus@samba.org>".
|
|
*
|
|
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
|
|
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
|
|
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
|
|
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _NET_PPP_DEFS_H_
|
|
#define _NET_PPP_DEFS_H_
|
|
|
|
/*
|
|
* The basic PPP frame.
|
|
*/
|
|
#define PPP_HDRLEN 4 /* octets for standard ppp header */
|
|
#define PPP_FCSLEN 2 /* octets for FCS */
|
|
|
|
/*
|
|
* Packet sizes
|
|
*
|
|
* Note - lcp shouldn't be allowed to negotiate stuff outside these
|
|
* limits. See lcp.h in the pppd directory.
|
|
* (XXX - these constants should simply be shared by lcp.c instead
|
|
* of living in lcp.h)
|
|
*/
|
|
#define PPP_MTU 1500 /* Default MTU (size of Info field) */
|
|
#define PPP_MAXMTU 65535 - (PPP_HDRLEN + PPP_FCSLEN)
|
|
#define PPP_MINMTU 64
|
|
#define PPP_MRU 1500 /* default MRU = max length of info field */
|
|
#define PPP_MAXMRU 65000 /* Largest MRU we allow */
|
|
#define PPP_MINMRU 128
|
|
|
|
#define PPP_ADDRESS(p) (((const u_char *)(p))[0])
|
|
#define PPP_CONTROL(p) (((const u_char *)(p))[1])
|
|
#define PPP_PROTOCOL(p) \
|
|
((((const u_char *)(p))[2] << 8) + ((const u_char *)(p))[3])
|
|
|
|
/*
|
|
* Significant octet values.
|
|
*/
|
|
#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
|
|
#define PPP_UI 0x03 /* Unnumbered Information */
|
|
#define PPP_FLAG 0x7e /* Flag Sequence */
|
|
#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
|
|
#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
|
|
|
|
/*
|
|
* Protocol field values.
|
|
*/
|
|
#define PPP_IP 0x0021 /* Internet Protocol */
|
|
#define PPP_ISO 0x0023 /* ISO OSI Protocol */
|
|
#define PPP_XNS 0x0025 /* Xerox NS Protocol */
|
|
#define PPP_AT 0x0029 /* AppleTalk Protocol */
|
|
#define PPP_IPX 0x002b /* IPX protocol */
|
|
#define PPP_VJC_COMP 0x002d /* VJ compressed TCP */
|
|
#define PPP_VJC_UNCOMP 0x002f /* VJ uncompressed TCP */
|
|
#define PPP_MP 0x003d /* Multilink PPP Fragment */
|
|
#define PPP_IPV6 0x0057 /* Internet Protocol Version 6 */
|
|
#define PPP_COMP 0x00fd /* compressed packet */
|
|
#define PPP_IPCP 0x8021 /* IP Control Protocol */
|
|
#define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
|
|
#define PPP_IPXCP 0x802b /* IPX Control Protocol */
|
|
#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */
|
|
#define PPP_CCP 0x80fd /* Compression Control Protocol */
|
|
#define PPP_ECP 0x8053 /* Encryption Control Protocol */
|
|
#define PPP_LCP 0xc021 /* Link Control Protocol */
|
|
#define PPP_PAP 0xc023 /* Password Authentication Protocol */
|
|
#define PPP_LQR 0xc025 /* Link Quality Report protocol */
|
|
#define PPP_CHAP 0xc223 /* Crypto Handshake Auth. Protocol */
|
|
#define PPP_CBCP 0xc029 /* Callback Control Protocol */
|
|
#define PPP_EAP 0xc227 /* Extensible Authentication Protocol */
|
|
|
|
/*
|
|
* Values for FCS calculations.
|
|
*/
|
|
#define PPP_INITFCS 0xffff /* Initial FCS value */
|
|
#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
|
|
#define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
|
|
|
|
/*
|
|
* Extended asyncmap - allows any character to be escaped.
|
|
*/
|
|
typedef uint32_t ext_accm[8];
|
|
|
|
/*
|
|
* What to do with network protocol (NP) packets.
|
|
*/
|
|
enum NPmode {
|
|
NPMODE_PASS, /* pass the packet through */
|
|
NPMODE_DROP, /* silently drop the packet */
|
|
NPMODE_ERROR, /* return an error */
|
|
NPMODE_QUEUE /* save it up for later. */
|
|
};
|
|
|
|
/*
|
|
* Statistics.
|
|
*/
|
|
struct pppstat {
|
|
unsigned int ppp_ibytes; /* bytes received */
|
|
unsigned int ppp_ipackets; /* packets received */
|
|
unsigned int ppp_ierrors; /* receive errors */
|
|
unsigned int ppp_obytes; /* bytes sent */
|
|
unsigned int ppp_opackets; /* packets sent */
|
|
unsigned int ppp_oerrors; /* transmit errors */
|
|
};
|
|
|
|
struct vjstat {
|
|
unsigned int vjs_packets; /* outbound packets */
|
|
unsigned int vjs_compressed; /* outbound compressed packets */
|
|
unsigned int vjs_searches; /* searches for connection state */
|
|
unsigned int vjs_misses; /* times couldn't find conn. state */
|
|
unsigned int vjs_uncompressedin; /* inbound uncompressed packets */
|
|
unsigned int vjs_compressedin; /* inbound compressed packets */
|
|
unsigned int vjs_errorin; /* inbound unknown type packets */
|
|
unsigned int vjs_tossed; /* inbound packets tossed because of error */
|
|
};
|
|
|
|
struct ppp_stats {
|
|
struct pppstat p; /* basic PPP statistics */
|
|
struct vjstat vj; /* VJ header compression statistics */
|
|
};
|
|
|
|
struct compstat {
|
|
unsigned int unc_bytes; /* total uncompressed bytes */
|
|
unsigned int unc_packets; /* total uncompressed packets */
|
|
unsigned int comp_bytes; /* compressed bytes */
|
|
unsigned int comp_packets; /* compressed packets */
|
|
unsigned int inc_bytes; /* incompressible bytes */
|
|
unsigned int inc_packets; /* incompressible packets */
|
|
unsigned int ratio; /* recent compression ratio << 8 */
|
|
};
|
|
|
|
struct ppp_comp_stats {
|
|
struct compstat c; /* packet compression statistics */
|
|
struct compstat d; /* packet decompression statistics */
|
|
};
|
|
|
|
/*
|
|
* The following structure records the time in seconds since
|
|
* the last NP packet was sent or received.
|
|
*/
|
|
struct ppp_idle {
|
|
time_t xmit_idle; /* time since last NP packet sent */
|
|
time_t recv_idle; /* time since last NP packet received */
|
|
};
|
|
|
|
#endif /* !_NET_PPP_DEFS_H_ */
|