5d9e610366
the layering. We now ``stack'' layers as soon as we open the device (when we figure out what we're dealing with). A static set of `dispatch' routines are also declared for dealing with incoming packets after they've been `pulled' up through the stacked layers. Physical devices are now assigned handlers based on the device type when they're opened. For the moment there are three device types; ttys, execs and tcps. o Increment version number to 2.2 o Make an entry in [uw]tmp for non-tty -direct invocations (after pap/chap authentication). o Make throughput counters quad_t's o Account for the absolute number of mbuf malloc()s and free()s in ``show mem''. o ``show modem'' becomes ``show physical''.
141 lines
5.6 KiB
C
141 lines
5.6 KiB
C
/*
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* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
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*
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* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the Internet Initiative Japan. The name of the
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* IIJ may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id: lcp.h,v 1.21 1999/02/26 21:28:12 brian Exp $
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*
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* TODO:
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*/
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/* callback::opmask values */
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#define CALLBACK_AUTH (0)
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#define CALLBACK_DIALSTRING (1) /* Don't do this */
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#define CALLBACK_LOCATION (2) /* Don't do this */
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#define CALLBACK_E164 (3)
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#define CALLBACK_NAME (4) /* Don't do this */
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#define CALLBACK_CBCP (6)
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#define CALLBACK_NONE (14) /* No callback is ok */
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#define CALLBACK_BIT(n) ((n) < 0 ? 0 : 1 << (n))
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struct callback {
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int opmask; /* want these types of callback */
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char msg[SCRIPT_LEN]; /* with this data (E.164) */
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};
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#define REJECTED(p, x) ((p)->his_reject & (1<<(x)))
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struct lcp {
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struct fsm fsm; /* The finite state machine */
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u_int16_t his_mru; /* Peers maximum packet size */
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u_int16_t his_mrru; /* Peers maximum reassembled packet size (MP) */
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u_int32_t his_accmap; /* Peeers async char control map */
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u_int32_t his_magic; /* Peers magic number */
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u_int32_t his_lqrperiod; /* Peers LQR frequency (100ths of seconds) */
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u_short his_auth; /* Peer wants this type of authentication */
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u_char his_authtype; /* Fifth octet of REQ/NAK/REJ */
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struct callback his_callback; /* Peer wants callback ? */
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unsigned his_shortseq : 1; /* Peer would like only 12bit seqs (MP) */
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unsigned his_protocomp : 1; /* Does peer do Protocol field compression */
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unsigned his_acfcomp : 1; /* Does peer do addr & cntrl fld compression */
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u_short want_mru; /* Our maximum packet size */
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u_short want_mrru; /* Our maximum reassembled packet size (MP) */
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u_int32_t want_accmap; /* Our async char control map */
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u_int32_t want_magic; /* Our magic number */
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u_int32_t want_lqrperiod; /* Our LQR frequency (100ths of seconds) */
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u_short want_auth; /* We want this type of authentication */
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u_char want_authtype; /* Fifth octet of REQ/NAK/REJ */
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struct callback want_callback;/* We want callback ? */
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unsigned want_shortseq : 1; /* I'd like only 12bit seqs (MP) */
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unsigned want_protocomp : 1; /* Do we do protocol field compression */
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unsigned want_acfcomp : 1; /* Do we do addr & cntrl fld compression */
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u_int32_t his_reject; /* Request codes rejected by peer */
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u_int32_t my_reject; /* Request codes I have rejected */
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u_short auth_iwait; /* I must authenticate to the peer */
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u_short auth_ineed; /* I require that the peer authenticates */
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int LcpFailedMagic; /* Number of `magic is same' errors */
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struct {
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u_short mru; /* Preferred MRU value */
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u_int32_t accmap; /* Initial ACCMAP value */
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int openmode; /* when to start CFG REQs */
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u_int32_t lqrperiod; /* LQR frequency (seconds) */
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struct fsm_retry fsm; /* How often/frequently to resend requests */
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unsigned acfcomp : 2; /* Address & Control Field Compression neg */
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unsigned chap05 : 2; /* Challenge Handshake Authentication proto */
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#ifdef HAVE_DES
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unsigned chap80nt : 2; /* Microsoft (NT) CHAP */
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unsigned chap80lm : 2; /* Microsoft (LANMan) CHAP */
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#endif
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unsigned lqr : 2; /* Link Quality Report */
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unsigned pap : 2; /* Password Authentication protocol */
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unsigned protocomp : 2; /* Protocol field compression */
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} cfg;
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};
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#define LCP_MAXCODE CODE_DISCREQ
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#define LCP_MINMPCODE CODE_CODEREJ
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#define TY_MRU 1 /* Maximum-Receive-Unit */
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#define TY_ACCMAP 2 /* Async-Control-Character-Map */
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#define TY_AUTHPROTO 3 /* Authentication-Protocol */
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#define TY_QUALPROTO 4 /* Quality-Protocol */
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#define TY_MAGICNUM 5 /* Magic-Number */
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#define TY_RESERVED 6 /* RESERVED */
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#define TY_PROTOCOMP 7 /* Protocol-Field-Compression */
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#define TY_ACFCOMP 8 /* Address-and-Control-Field-Compression */
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#define TY_FCSALT 9 /* FCS-Alternatives */
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#define TY_SDP 10 /* Self-Describing-Padding */
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#define TY_CALLBACK 13 /* Callback */
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#define TY_CFRAMES 15 /* Compound-frames */
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#define TY_MRRU 17 /* Max Reconstructed Receive Unit (MP) */
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#define TY_SHORTSEQ 18 /* Want short seqs (12bit) please (see mp.h) */
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#define TY_ENDDISC 19 /* Endpoint discriminator */
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#define MAX_LCP_OPT_LEN 20
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struct lcp_opt {
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u_char id;
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u_char len;
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u_char data[MAX_LCP_OPT_LEN-2];
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};
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#define INC_LCP_OPT(ty, length, o) \
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do { \
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(o)->id = (ty); \
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(o)->len = (length); \
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(o) = (struct lcp_opt *)((char *)(o) + (length)); \
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} while (0)
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struct mbuf;
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struct link;
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struct bundle;
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struct cmdargs;
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#define fsm2lcp(fp) (fp->proto == PROTO_LCP ? (struct lcp *)fp : NULL)
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extern void lcp_Init(struct lcp *, struct bundle *, struct link *,
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const struct fsm_parent *);
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extern void lcp_Setup(struct lcp *, int);
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extern void lcp_SendProtoRej(struct lcp *, u_char *, int);
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extern int lcp_ReportStatus(struct cmdargs const *);
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extern struct mbuf *lcp_Input(struct bundle *, struct link *, struct mbuf *);
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extern void lcp_SetupCallbacks(struct lcp *);
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