You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
152 lines
5.0 KiB
C
152 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
/*
|
|
* ppp_defs.h - PPP definitions.
|
|
*
|
|
* Copyright 1994-2000 Paul Mackerras.
|
|
*
|
|
* 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.
|
|
*/
|
|
#include <linux/types.h>
|
|
|
|
#ifndef _PPP_DEFS_H_
|
|
#define _PPP_DEFS_H_
|
|
|
|
/*
|
|
* The basic PPP frame.
|
|
*/
|
|
#define PPP_HDRLEN 4 /* octets for standard ppp header */
|
|
#define PPP_FCSLEN 2 /* octets for FCS */
|
|
#define PPP_MRU 1500 /* default MRU = max length of info field */
|
|
|
|
#define PPP_ADDRESS(p) (((__u8 *)(p))[0])
|
|
#define PPP_CONTROL(p) (((__u8 *)(p))[1])
|
|
#define PPP_PROTOCOL(p) ((((__u8 *)(p))[2] << 8) + ((__u8 *)(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 0x21 /* Internet Protocol */
|
|
#define PPP_AT 0x29 /* AppleTalk Protocol */
|
|
#define PPP_IPX 0x2b /* IPX protocol */
|
|
#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
|
|
#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
|
|
#define PPP_MP 0x3d /* Multilink protocol */
|
|
#define PPP_IPV6 0x57 /* Internet Protocol Version 6 */
|
|
#define PPP_COMPFRAG 0xfb /* fragment compressed below bundle */
|
|
#define PPP_COMP 0xfd /* compressed packet */
|
|
#define PPP_MPLS_UC 0x0281 /* Multi Protocol Label Switching - Unicast */
|
|
#define PPP_MPLS_MC 0x0283 /* Multi Protocol Label Switching - Multicast */
|
|
#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_CCPFRAG 0x80fb /* CCP at link level (below MP bundle) */
|
|
#define PPP_CCP 0x80fd /* Compression Control Protocol */
|
|
#define PPP_MPLSCP 0x80fd /* MPLS 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 /* Cryptographic Handshake Auth. Protocol */
|
|
#define PPP_CBCP 0xc029 /* Callback Control Protocol */
|
|
|
|
/*
|
|
* Values for FCS calculations.
|
|
*/
|
|
|
|
#define PPP_INITFCS 0xffff /* Initial FCS value */
|
|
#define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
|
|
|
|
|
|
/*
|
|
* Extended asyncmap - allows any character to be escaped.
|
|
*/
|
|
|
|
typedef __u32 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 for LQRP and pppstats
|
|
*/
|
|
struct pppstat {
|
|
__u32 ppp_discards; /* # frames discarded */
|
|
|
|
__u32 ppp_ibytes; /* bytes received */
|
|
__u32 ppp_ioctects; /* bytes received not in error */
|
|
__u32 ppp_ipackets; /* packets received */
|
|
__u32 ppp_ierrors; /* receive errors */
|
|
__u32 ppp_ilqrs; /* # LQR frames received */
|
|
|
|
__u32 ppp_obytes; /* raw bytes sent */
|
|
__u32 ppp_ooctects; /* frame bytes sent */
|
|
__u32 ppp_opackets; /* packets sent */
|
|
__u32 ppp_oerrors; /* transmit errors */
|
|
__u32 ppp_olqrs; /* # LQR frames sent */
|
|
};
|
|
|
|
struct vjstat {
|
|
__u32 vjs_packets; /* outbound packets */
|
|
__u32 vjs_compressed; /* outbound compressed packets */
|
|
__u32 vjs_searches; /* searches for connection state */
|
|
__u32 vjs_misses; /* times couldn't find conn. state */
|
|
__u32 vjs_uncompressedin; /* inbound uncompressed packets */
|
|
__u32 vjs_compressedin; /* inbound compressed packets */
|
|
__u32 vjs_errorin; /* inbound unknown type packets */
|
|
__u32 vjs_tossed; /* inbound packets tossed because of error */
|
|
};
|
|
|
|
struct compstat {
|
|
__u32 unc_bytes; /* total uncompressed bytes */
|
|
__u32 unc_packets; /* total uncompressed packets */
|
|
__u32 comp_bytes; /* compressed bytes */
|
|
__u32 comp_packets; /* compressed packets */
|
|
__u32 inc_bytes; /* incompressible bytes */
|
|
__u32 inc_packets; /* incompressible packets */
|
|
|
|
/* the compression ratio is defined as in_count / bytes_out */
|
|
__u32 in_count; /* Bytes received */
|
|
__u32 bytes_out; /* Bytes transmitted */
|
|
|
|
double ratio; /* not computed in kernel. */
|
|
};
|
|
|
|
struct ppp_stats {
|
|
struct pppstat p; /* basic PPP statistics */
|
|
struct vjstat vj; /* VJ header compression statistics */
|
|
};
|
|
|
|
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 {
|
|
__kernel_time_t xmit_idle; /* time since last NP packet sent */
|
|
__kernel_time_t recv_idle; /* time since last NP packet received */
|
|
};
|
|
|
|
#endif /* _PPP_DEFS_H_ */
|