| /* $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_ */ |
