/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> * Internet Initiative Japan, Inc (IIJ) * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* callback::opmask values */ #define CALLBACK_AUTH (0) #define CALLBACK_DIALSTRING (1) /* Don't do this */ #define CALLBACK_LOCATION (2) /* Don't do this */ #define CALLBACK_E164 (3) #define CALLBACK_NAME (4) /* Don't do this */ #define CALLBACK_CBCP (6) #define CALLBACK_NONE (14) /* No callback is ok */ #define CALLBACK_BIT(n) ((n) < 0 ? 0 : 1 << (n)) struct callback { int opmask; /* want these types of callback */ char msg[SCRIPT_LEN]; /* with this data (E.164) */ }; #define REJECTED(p, x) ((p)->his_reject & (1<<(x))) struct lcp { struct fsm fsm; /* The finite state machine */ u_int16_t his_mru; /* Peers maximum packet size */ u_int16_t his_mrru; /* Peers maximum reassembled packet size (MP) */ u_int32_t his_accmap; /* Peeers async char control map */ u_int32_t his_magic; /* Peers magic number */ u_int32_t his_lqrperiod; /* Peers LQR frequency (100ths of seconds) */ u_short his_auth; /* Peer wants this type of authentication */ u_char his_authtype; /* Fifth octet of REQ/NAK/REJ */ struct callback his_callback; /* Peer wants callback ? */ unsigned his_shortseq : 1; /* Peer would like only 12bit seqs (MP) */ unsigned his_protocomp : 1; /* Does peer do Protocol field compression */ unsigned his_acfcomp : 1; /* Does peer do addr & cntrl fld compression */ unsigned mru_req : 1; /* Has the peer requested an MRU */ u_short want_mru; /* Our maximum packet size */ u_short want_mrru; /* Our maximum reassembled packet size (MP) */ u_int32_t want_accmap; /* Our async char control map */ u_int32_t want_magic; /* Our magic number */ u_int32_t want_lqrperiod; /* Our LQR frequency (100ths of seconds) */ u_short want_auth; /* We want this type of authentication */ u_char want_authtype; /* Fifth octet of REQ/NAK/REJ */ struct callback want_callback;/* We want callback ? */ unsigned want_shortseq : 1; /* I'd like only 12bit seqs (MP) */ unsigned want_protocomp : 1; /* Do we do protocol field compression */ unsigned want_acfcomp : 1; /* Do we do addr & cntrl fld compression */ u_int32_t his_reject; /* Request codes rejected by peer */ u_int32_t my_reject; /* Request codes I have rejected */ u_short auth_iwait; /* I must authenticate to the peer */ u_short auth_ineed; /* I require that the peer authenticates */ int LcpFailedMagic; /* Number of `magic is same' errors */ struct { u_short mru; /* Preferred MRU value */ u_short max_mru; /* Preferred MRU value */ u_short mtu; /* Preferred MTU */ u_short max_mtu; /* Preferred MTU */ u_int32_t accmap; /* Initial ACCMAP value */ int openmode; /* when to start CFG REQs */ u_int32_t lqrperiod; /* LQR frequency (seconds) */ struct fsm_retry fsm; /* How often/frequently to resend requests */ unsigned acfcomp : 2; /* Address & Control Field Compression neg */ unsigned chap05 : 2; /* Challenge Handshake Authentication proto */ #ifndef NODES unsigned chap80nt : 2; /* Microsoft (NT) CHAP */ unsigned chap80lm : 2; /* Microsoft (LANMan) CHAP */ unsigned chap81 : 2; /* Microsoft CHAP v2 */ #endif unsigned lqr : 2; /* Link Quality Report */ unsigned echo : 1; /* Send echo Requests */ unsigned pap : 2; /* Password Authentication protocol */ unsigned protocomp : 2; /* Protocol field compression */ char ident[DEF_MRU - 7]; /* SendIdentification() data */ } cfg; }; #define LCP_MAXCODE CODE_IDENT #define LCP_MINMPCODE CODE_CODEREJ #define TY_MRU 1 /* Maximum-Receive-Unit */ #define TY_ACCMAP 2 /* Async-Control-Character-Map */ #define TY_AUTHPROTO 3 /* Authentication-Protocol */ #define TY_QUALPROTO 4 /* Quality-Protocol */ #define TY_MAGICNUM 5 /* Magic-Number */ #define TY_RESERVED 6 /* RESERVED */ #define TY_PROTOCOMP 7 /* Protocol-Field-Compression */ #define TY_ACFCOMP 8 /* Address-and-Control-Field-Compression */ #define TY_FCSALT 9 /* FCS-Alternatives */ #define TY_SDP 10 /* Self-Describing-Padding */ #define TY_CALLBACK 13 /* Callback */ #define TY_CFRAMES 15 /* Compound-frames */ #define TY_MRRU 17 /* Max Reconstructed Receive Unit (MP) */ #define TY_SHORTSEQ 18 /* Want short seqs (12bit) please (see mp.h) */ #define TY_ENDDISC 19 /* Endpoint discriminator */ struct mbuf; struct link; struct bundle; struct cmdargs; #define fsm2lcp(fp) (fp->proto == PROTO_LCP ? (struct lcp *)fp : NULL) extern void lcp_Init(struct lcp *, struct bundle *, struct link *, const struct fsm_parent *); extern void lcp_Setup(struct lcp *, int); extern void lcp_SendProtoRej(struct lcp *, u_char *, int); extern int lcp_SendIdentification(struct lcp *); extern void lcp_RecvIdentification(struct lcp *, char *); extern int lcp_ReportStatus(struct cmdargs const *); extern struct mbuf *lcp_Input(struct bundle *, struct link *, struct mbuf *); extern void lcp_SetupCallbacks(struct lcp *);
