178189Sbrian/*- 278189Sbrian * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 378189Sbrian * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 478189Sbrian * Internet Initiative Japan, Inc (IIJ) 578189Sbrian * All rights reserved. 66059Samurai * 778189Sbrian * Redistribution and use in source and binary forms, with or without 878189Sbrian * modification, are permitted provided that the following conditions 978189Sbrian * are met: 1078189Sbrian * 1. Redistributions of source code must retain the above copyright 1178189Sbrian * notice, this list of conditions and the following disclaimer. 1278189Sbrian * 2. Redistributions in binary form must reproduce the above copyright 1378189Sbrian * notice, this list of conditions and the following disclaimer in the 1478189Sbrian * documentation and/or other materials provided with the distribution. 156059Samurai * 1678189Sbrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1778189Sbrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1878189Sbrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1978189Sbrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2078189Sbrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2178189Sbrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2278189Sbrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2378189Sbrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2478189Sbrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2578189Sbrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2678189Sbrian * SUCH DAMAGE. 276059Samurai * 2850479Speter * $FreeBSD$ 296059Samurai */ 306059Samurai 3138174Sbrian/* callback::opmask values */ 3238174Sbrian#define CALLBACK_AUTH (0) 3338174Sbrian#define CALLBACK_DIALSTRING (1) /* Don't do this */ 3438174Sbrian#define CALLBACK_LOCATION (2) /* Don't do this */ 3538174Sbrian#define CALLBACK_E164 (3) 3638174Sbrian#define CALLBACK_NAME (4) /* Don't do this */ 3738174Sbrian#define CALLBACK_CBCP (6) 3838174Sbrian#define CALLBACK_NONE (14) /* No callback is ok */ 3938174Sbrian 4038174Sbrian#define CALLBACK_BIT(n) ((n) < 0 ? 0 : 1 << (n)) 4138174Sbrian 4238174Sbrianstruct callback { 4338174Sbrian int opmask; /* want these types of callback */ 4438174Sbrian char msg[SCRIPT_LEN]; /* with this data (E.164) */ 4538174Sbrian}; 4638174Sbrian 4731538Sbrian#define REJECTED(p, x) ((p)->his_reject & (1<<(x))) 4831514Sbrian 4936285Sbrianstruct lcp { 5036285Sbrian struct fsm fsm; /* The finite state machine */ 5136285Sbrian u_int16_t his_mru; /* Peers maximum packet size */ 5236285Sbrian u_int16_t his_mrru; /* Peers maximum reassembled packet size (MP) */ 5336285Sbrian u_int32_t his_accmap; /* Peeers async char control map */ 5436285Sbrian u_int32_t his_magic; /* Peers magic number */ 5537210Sbrian u_int32_t his_lqrperiod; /* Peers LQR frequency (100ths of seconds) */ 5636285Sbrian u_short his_auth; /* Peer wants this type of authentication */ 5744106Sbrian u_char his_authtype; /* Fifth octet of REQ/NAK/REJ */ 5838174Sbrian struct callback his_callback; /* Peer wants callback ? */ 5936285Sbrian unsigned his_shortseq : 1; /* Peer would like only 12bit seqs (MP) */ 6036285Sbrian unsigned his_protocomp : 1; /* Does peer do Protocol field compression */ 6136285Sbrian unsigned his_acfcomp : 1; /* Does peer do addr & cntrl fld compression */ 6285094Sbrian unsigned mru_req : 1; /* Has the peer requested an MRU */ 636059Samurai 6436285Sbrian u_short want_mru; /* Our maximum packet size */ 6536285Sbrian u_short want_mrru; /* Our maximum reassembled packet size (MP) */ 6636285Sbrian u_int32_t want_accmap; /* Our async char control map */ 6736285Sbrian u_int32_t want_magic; /* Our magic number */ 6837210Sbrian u_int32_t want_lqrperiod; /* Our LQR frequency (100ths of seconds) */ 6936285Sbrian u_short want_auth; /* We want this type of authentication */ 7044106Sbrian u_char want_authtype; /* Fifth octet of REQ/NAK/REJ */ 7138174Sbrian struct callback want_callback;/* We want callback ? */ 7236285Sbrian unsigned want_shortseq : 1; /* I'd like only 12bit seqs (MP) */ 7336285Sbrian unsigned want_protocomp : 1; /* Do we do protocol field compression */ 7436285Sbrian unsigned want_acfcomp : 1; /* Do we do addr & cntrl fld compression */ 756059Samurai 7632439Sbrian u_int32_t his_reject; /* Request codes rejected by peer */ 7732439Sbrian u_int32_t my_reject; /* Request codes I have rejected */ 786059Samurai 7936285Sbrian u_short auth_iwait; /* I must authenticate to the peer */ 8036285Sbrian u_short auth_ineed; /* I require that the peer authenticates */ 8136285Sbrian 8236285Sbrian int LcpFailedMagic; /* Number of `magic is same' errors */ 8336285Sbrian 8436285Sbrian struct { 8536285Sbrian u_short mru; /* Preferred MRU value */ 8678410Sbrian u_short max_mru; /* Preferred MRU value */ 8778410Sbrian u_short mtu; /* Preferred MTU */ 8878410Sbrian u_short max_mtu; /* Preferred MTU */ 8936285Sbrian u_int32_t accmap; /* Initial ACCMAP value */ 9036285Sbrian int openmode; /* when to start CFG REQs */ 9137210Sbrian u_int32_t lqrperiod; /* LQR frequency (seconds) */ 9244305Sbrian struct fsm_retry fsm; /* How often/frequently to resend requests */ 9336285Sbrian unsigned acfcomp : 2; /* Address & Control Field Compression neg */ 9444106Sbrian unsigned chap05 : 2; /* Challenge Handshake Authentication proto */ 9593418Sbrian#ifndef NODES 9644106Sbrian unsigned chap80nt : 2; /* Microsoft (NT) CHAP */ 9744106Sbrian unsigned chap80lm : 2; /* Microsoft (LANMan) CHAP */ 9867910Sbrian unsigned chap81 : 2; /* Microsoft CHAP v2 */ 9944106Sbrian#endif 10036285Sbrian unsigned lqr : 2; /* Link Quality Report */ 101138799Sbrian unsigned echo : 1; /* Send echo Requests */ 10236285Sbrian unsigned pap : 2; /* Password Authentication protocol */ 10336285Sbrian unsigned protocomp : 2; /* Protocol field compression */ 10463484Sbrian char ident[DEF_MRU - 7]; /* SendIdentification() data */ 10536285Sbrian } cfg; 1066059Samurai}; 1076059Samurai 10863484Sbrian#define LCP_MAXCODE CODE_IDENT 10936285Sbrian#define LCP_MINMPCODE CODE_CODEREJ 1106059Samurai 1116059Samurai#define TY_MRU 1 /* Maximum-Receive-Unit */ 1126059Samurai#define TY_ACCMAP 2 /* Async-Control-Character-Map */ 1136059Samurai#define TY_AUTHPROTO 3 /* Authentication-Protocol */ 1146059Samurai#define TY_QUALPROTO 4 /* Quality-Protocol */ 1156059Samurai#define TY_MAGICNUM 5 /* Magic-Number */ 1166059Samurai#define TY_RESERVED 6 /* RESERVED */ 1176059Samurai#define TY_PROTOCOMP 7 /* Protocol-Field-Compression */ 1186059Samurai#define TY_ACFCOMP 8 /* Address-and-Control-Field-Compression */ 1196059Samurai#define TY_FCSALT 9 /* FCS-Alternatives */ 12031171Sbrian#define TY_SDP 10 /* Self-Describing-Padding */ 12138174Sbrian#define TY_CALLBACK 13 /* Callback */ 12238174Sbrian#define TY_CFRAMES 15 /* Compound-frames */ 12336285Sbrian#define TY_MRRU 17 /* Max Reconstructed Receive Unit (MP) */ 12436285Sbrian#define TY_SHORTSEQ 18 /* Want short seqs (12bit) please (see mp.h) */ 12536285Sbrian#define TY_ENDDISC 19 /* Endpoint discriminator */ 1266059Samurai 12736285Sbrianstruct mbuf; 12836285Sbrianstruct link; 12936285Sbrianstruct bundle; 13036285Sbrianstruct cmdargs; 1316059Samurai 13236285Sbrian#define fsm2lcp(fp) (fp->proto == PROTO_LCP ? (struct lcp *)fp : NULL) 13336285Sbrian 13436285Sbrianextern void lcp_Init(struct lcp *, struct bundle *, struct link *, 13536285Sbrian const struct fsm_parent *); 13636285Sbrianextern void lcp_Setup(struct lcp *, int); 13736285Sbrian 13836285Sbrianextern void lcp_SendProtoRej(struct lcp *, u_char *, int); 13963484Sbrianextern int lcp_SendIdentification(struct lcp *); 14063484Sbrianextern void lcp_RecvIdentification(struct lcp *, char *); 14136285Sbrianextern int lcp_ReportStatus(struct cmdargs const *); 14246686Sbrianextern struct mbuf *lcp_Input(struct bundle *, struct link *, struct mbuf *); 14336285Sbrianextern void lcp_SetupCallbacks(struct lcp *); 144