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Diffstat (limited to 'include/linux/ppp_defs.h')
| -rw-r--r-- | include/linux/ppp_defs.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/linux/ppp_defs.h b/include/linux/ppp_defs.h new file mode 100644 index 00000000000..402056cd049 --- /dev/null +++ b/include/linux/ppp_defs.h @@ -0,0 +1,190 @@ +/* $Id: ppp_defs.h,v 1.2 1994/09/21 01:31:06 paulus Exp $ */ + +/* + * ppp_defs.h - PPP definitions. + * + * Copyright (c) 1994 The Australian National University. + * All rights reserved. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation is hereby granted, provided that the above copyright + * notice appears in all copies. This software is provided without any + * warranty, express or implied. The Australian National University + * makes no representations about the suitability of this software for + * any purpose. + * + * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY + * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF + * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO + * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, + * OR MODIFICATIONS. + */ + +/* + * ==FILEVERSION 20000114== + * + * NOTE TO MAINTAINERS: + * If you modify this file at all, please set the above date. + * ppp_defs.h is shipped with a PPP distribution as well as with the kernel; + * if everyone increases the FILEVERSION number above, then scripts + * can do the right thing when deciding whether to install a new ppp_defs.h + * file. Don't change the format of that line otherwise, so the + * installation script can recognize it. + */ + +#ifndef _PPP_DEFS_H_ +#define _PPP_DEFS_H_ + +#include <linux/crc-ccitt.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 */ +#define PPP_FCS(fcs, c) crc_ccitt_byte(fcs, c) + +/* + * 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 { + time_t xmit_idle; /* time since last NP packet sent */ + time_t recv_idle; /* time since last NP packet received */ +}; + +#ifndef __P +#ifdef __STDC__ +#define __P(x) x +#else +#define __P(x) () +#endif +#endif + +#endif /* _PPP_DEFS_H_ */ |