| /* $Id: ppp_defs.h,v 1.17 2002/12/06 09:49:15 paulus Exp $ */ |
| |
| /* |
| * ppp_defs.h - PPP definitions. |
| * |
| * Copyright (c) 1984 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 _PPP_DEFS_H_ |
| #define _PPP_DEFS_H_ |
| |
| #if defined(PPP_ADDRESS) |
| #define USING_UAPI |
| #endif |
| |
| /* |
| * 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 |
| |
| #if !defined(USING_UAPI) |
| #define PPP_ADDRESS(p) (((u_char *)(p))[0]) |
| #define PPP_CONTROL(p) (((u_char *)(p))[1]) |
| #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) |
| #endif |
| |
| /* |
| * 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_IPV6 0x57 /* Internet Protocol Version 6 */ |
| #define PPP_COMP 0xfd /* 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 /* Cryptographic 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]) |
| |
| /* |
| * A 32-bit unsigned integral type. |
| */ |
| |
| #if !defined(__BIT_TYPES_DEFINED__) && !defined(_BITYPES) \ |
| && !defined(__FreeBSD__) && (NS_TARGET < 40) |
| #ifdef UINT32_T |
| typedef UINT32_T u_int32_t; |
| #else |
| typedef unsigned int u_int32_t; |
| typedef unsigned short u_int16_t; |
| #endif |
| #endif |
| |
| /* |
| * Extended asyncmap - allows any character to be escaped. |
| */ |
| typedef u_int32_t ext_accm[8]; |
| |
| /* |
| * What to do with network protocol (NP) packets. |
| */ |
| #if defined(USING_UAPI) |
| /* This stuff isn't in uapi. TODO: is there a newer pppd that doesn't use this? */ |
| #define ifr__name b.ifr_ifrn.ifrn_name |
| #define stats_ptr b.ifr_ifru.ifru_data |
| struct ifpppstatsreq { |
| struct ifreq b; |
| struct ppp_stats stats; |
| }; |
| #else |
| 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 |
| |
| #ifndef __P |
| #ifdef __STDC__ |
| #define __P(x) x |
| #else |
| #define __P(x) () |
| #endif |
| #endif |
| |
| #endif /* _PPP_DEFS_H_ */ |
