3006ec67fe
This is a type of physical link that can chat and talk LCP & CCP. A bundle contains a list of these (only one in the list for the moment). The datalink is a type of descriptor, and dials, enters LCP (& does CCP), kicks the bundle when its FSMs do something interesting and does the hangup chat script on the way down. It also handles redials and reconnects. There are lots of loose ends, and probably lots of bugs, but the data structures are getting there !
210 lines
7.9 KiB
C
210 lines
7.9 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: vars.h,v 1.42.2.3 1998/02/10 03:23:50 brian Exp $
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*
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* TODO:
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*/
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struct confdesc {
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const char *name;
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int myside, hisside;
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};
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#define CONF_NONE -1
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#define CONF_DISABLE 0
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#define CONF_ENABLE 1
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#define CONF_DENY 0
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#define CONF_ACCEPT 1
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#define ConfAcfcomp 0
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#define ConfChap 1
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#define ConfDeflate 2
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#define ConfLqr 3
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#define ConfPap 4
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#define ConfPppdDeflate 5
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#define ConfPred1 6
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#define ConfProtocomp 7
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#define ConfVjcomp 8
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#define ConfMSExt 9
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#define ConfPasswdAuth 10
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#define ConfProxy 11
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#define ConfThroughput 12
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#define ConfUtmp 13
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#define MAXCONFS 14
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#define Enabled(x) (pppConfs[x].myside & CONF_ENABLE)
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#define Acceptable(x) (pppConfs[x].hisside & CONF_ACCEPT)
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extern struct confdesc pppConfs[MAXCONFS + 1];
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struct pppvars {
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u_short var_mru; /* Initial MRU value */
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u_short pref_mtu; /* Preferred MTU value */
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int var_accmap; /* Initial ACCMAP value */
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int modem_speed; /* Current modem speed */
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int modem_parity; /* Parity setting */
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int modem_ctsrts; /* Use CTS/RTS on modem port? (boolean) */
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int idle_timeout; /* Idle timeout value */
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int lqr_timeout; /* LQR timeout value */
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int retry_timeout; /* Retry timeout value */
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int reconnect_timer; /* Timeout before reconnect on carrier loss */
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int reconnect_tries; /* Attempt reconnect on carrier loss */
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int redial_timeout; /* Redial timeout value */
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int redial_next_timeout; /* Redial next timeout value */
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int dial_tries; /* Dial attempts before giving up, 0 == inf */
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int loopback; /* Turn around packets addressed to me */
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char modem_devlist[LINE_LEN]; /* Comma-separated list of devices */
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char modem_dev[40]; /* Name of device / host:port */
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const char *base_modem_dev; /* Pointer to base of modem_dev */
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int open_mode; /* Delay before first LCP REQ (-1 = passive) */
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#define LOCAL_AUTH 0x01
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#define LOCAL_NO_AUTH 0x02
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#define LOCAL_DENY 0x03
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u_char lauth; /* Local Authorized status */
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/* The rest are just default initialized in vars.c */
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#define DIALUP_REQ 0x01
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#define DIALUP_DONE 0x02
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char dial_script[SCRIPT_LEN]; /* Dial script */
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char login_script[SCRIPT_LEN]; /* Login script */
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char auth_key[50]; /* PAP/CHAP key */
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char auth_name[50]; /* PAP/CHAP system name */
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char local_auth_key[50]; /* Local auth passwd */
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int have_local_auth_key; /* Local auth passwd specified ? */
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#ifdef HAVE_DES
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int use_MSChap; /* Use MSCHAP encryption */
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#endif
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char phone_numbers[200]; /* Telephone Numbers */
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char phone_copy[200]; /* copy for strsep() */
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char *next_phone; /* Next phone from the list */
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char *alt_phone; /* Next phone from the list */
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char shostname[MAXHOSTNAMELEN]; /* Local short Host Name */
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char hangup_script[SCRIPT_LEN]; /* Hangup script before modem is closed */
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struct aliasHandlers handler; /* Alias function pointers */
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};
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#define VarAccmap pppVars.var_accmap
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#define VarMRU pppVars.var_mru
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#define VarPrefMTU pppVars.pref_mtu
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#define VarDevice pppVars.modem_dev
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#define VarDeviceList pppVars.modem_devlist
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#define VarBaseDevice pppVars.base_modem_dev
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#if 0
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# define VarSpeed pppVars.modem_speed
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# define VarParity pppVars.modem_parity
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# define VarCtsRts pppVars.modem_ctsrts
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#endif
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#define VarOpenMode pppVars.open_mode
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#define VarLocalAuth pppVars.lauth
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#define VarDialScript pppVars.dial_script
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#define VarHangupScript pppVars.hangup_script
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#define VarLoginScript pppVars.login_script
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#define VarIdleTimeout pppVars.idle_timeout
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#define VarLqrTimeout pppVars.lqr_timeout
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#define VarRetryTimeout pppVars.retry_timeout
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#define VarAuthKey pppVars.auth_key
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#define VarAuthName pppVars.auth_name
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#define VarLocalAuthKey pppVars.local_auth_key
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#define VarHaveLocalAuthKey pppVars.have_local_auth_key
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#ifdef HAVE_DES
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#define VarMSChap pppVars.use_MSChap
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#endif
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#define VarPhoneList pppVars.phone_numbers
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#define VarPhoneCopy pppVars.phone_copy
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#define VarNextPhone pppVars.next_phone
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#define VarAltPhone pppVars.alt_phone
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#define VarShortHost pppVars.shostname
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#define VarReconnectTimer pppVars.reconnect_timer
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#define VarReconnectTries pppVars.reconnect_tries
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#define VarRedialTimeout pppVars.redial_timeout
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#define VarRedialNextTimeout pppVars.redial_next_timeout
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#define VarDialTries pppVars.dial_tries
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#define VarLoopback pppVars.loopback
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#define VarAliasHandlers pppVars.handler
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#define VarPacketAliasGetFragment (*pppVars.handler.PacketAliasGetFragment)
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#define VarPacketAliasGetFragment (*pppVars.handler.PacketAliasGetFragment)
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#define VarPacketAliasInit (*pppVars.handler.PacketAliasInit)
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#define VarPacketAliasIn (*pppVars.handler.PacketAliasIn)
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#define VarPacketAliasOut (*pppVars.handler.PacketAliasOut)
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#define VarPacketAliasRedirectAddr (*pppVars.handler.PacketAliasRedirectAddr)
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#define VarPacketAliasRedirectPort (*pppVars.handler.PacketAliasRedirectPort)
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#define VarPacketAliasSaveFragment (*pppVars.handler.PacketAliasSaveFragment)
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#define VarPacketAliasSetAddress (*pppVars.handler.PacketAliasSetAddress)
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#define VarPacketAliasSetMode (*pppVars.handler.PacketAliasSetMode)
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#define VarPacketAliasFragmentIn (*pppVars.handler.PacketAliasFragmentIn)
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#define DEV_IS_SYNC (VarSpeed == 0)
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extern struct pppvars pppVars;
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extern char VarVersion[];
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extern char VarLocalVersion[];
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extern int Utmp; /* Are we in /etc/utmp ? */
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extern int ipKeepAlive;
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#if 0
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extern int reconnectState;
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extern int reconnectCount;
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#define RECON_TRUE (1)
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#define RECON_FALSE (2)
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#define RECON_UNKNOWN (3)
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#define RECON_ENVOKED (4)
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#define reconnect(x) \
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do \
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if (reconnectState == RECON_UNKNOWN) { \
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reconnectState = x; \
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if (x == RECON_FALSE) \
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reconnectCount = 0; \
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} \
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while(0)
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/*
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* This is the logic behind the reconnect variables:
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* We have four reconnect "states". We start off not requiring anything
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* from the reconnect code (reconnectState == RECON_UNKNOWN). If the
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* line is brought down (via LcpClose() or LcpDown()), we have to decide
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* whether to set to RECON_TRUE or RECON_FALSE. It's only here that we
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* know the correct action. Once we've decided, we don't want that
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* decision to be overridden (hence the above reconnect() macro) - If we
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* call LcpClose, the ModemTimeout() still gets to "notice" that the line
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* is down. When it "notice"s, it should only set RECON_TRUE if a decision
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* hasn't already been made.
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*
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* In main.c, when we notice we have RECON_TRUE, we must only action
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* it once. The fourth "state" is where we're bringing the line up,
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* but if we call LcpClose for any reason (failed PAP/CHAP etc) we
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* don't want to set to RECON_{TRUE,FALSE}.
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*
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* If we get a connection or give up dialing, we go back to RECON_UNKNOWN.
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* If we get give up dialing or reconnecting or if we chose to down the
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* connection, we set reconnectCount back to zero.
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*
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*/
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#endif
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extern int EnableCommand(struct cmdargs const *);
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extern int DisableCommand(struct cmdargs const *);
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extern int AcceptCommand(struct cmdargs const *);
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extern int DenyCommand(struct cmdargs const *);
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extern int LocalAuthCommand(struct cmdargs const *);
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extern int DisplayCommand(struct cmdargs const *);
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