1155 lines
24 KiB
C
1155 lines
24 KiB
C
/*
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* options.c - handles option processing for PPP.
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*
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* Copyright (c) 1989 Carnegie Mellon University.
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* All rights reserved.
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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 Carnegie Mellon University. The name of the
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* University 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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#ifndef lint
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static char rcsid[] = "$Id: options.c,v 1.3 1993/11/28 23:39:38 paulus Exp $";
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <termios.h>
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#include <syslog.h>
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#include <string.h>
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#include <netdb.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "ppp.h"
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#include "pppd.h"
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#include "pathnames.h"
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#include "patchlevel.h"
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#include "fsm.h"
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#include "lcp.h"
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#include "ipcp.h"
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#include "upap.h"
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#include "chap.h"
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#define FALSE 0
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#define TRUE 1
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/*
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* Prototypes
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*/
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static int setdebug __ARGS((void));
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static int setpassive __ARGS((void));
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static int setsilent __ARGS((void));
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static int noopt __ARGS((void));
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static int setnovj __ARGS((void));
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static int reqpap __ARGS((void));
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static int nopap __ARGS((void));
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static int setupapfile __ARGS((char **));
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static int nochap __ARGS((void));
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static int reqchap __ARGS((void));
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static int setspeed __ARGS((char *));
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static int noaccomp __ARGS((void));
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static int noasyncmap __ARGS((void));
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static int noipaddr __ARGS((void));
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static int nomagicnumber __ARGS((void));
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static int setasyncmap __ARGS((char **));
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static int setmru __ARGS((char **));
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static int nomru __ARGS((void));
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static int nopcomp __ARGS((void));
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static int setconnector __ARGS((char **));
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static int setdomain __ARGS((char **));
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static int setnetmask __ARGS((char **));
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static int setcrtscts __ARGS((void));
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static int setnodetach __ARGS((void));
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static int setmodem __ARGS((void));
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static int setlocal __ARGS((void));
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static int setname __ARGS((char **));
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static int setuser __ARGS((char **));
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static int setremote __ARGS((char **));
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static int setauth __ARGS((void));
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static int readfile __ARGS((char **));
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static int setdefaultroute __ARGS((void));
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static int setproxyarp __ARGS((void));
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static int setpersist __ARGS((void));
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static int setdologin __ARGS((void));
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static int setusehostname __ARGS((void));
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static int setlcptimeout __ARGS((char **));
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static int setlcpterm __ARGS((char **));
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static int setlcpconf __ARGS((char **));
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static int setlcpfails __ARGS((char **));
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static int setipcptimeout __ARGS((char **));
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static int setipcpterm __ARGS((char **));
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static int setipcpconf __ARGS((char **));
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static int setipcpfails __ARGS((char **));
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static int setpaptimeout __ARGS((char **));
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static int setpapreqs __ARGS((char **));
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static int setchaptimeout __ARGS((char **));
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static int setchapchal __ARGS((char **));
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static int setchapintv __ARGS((char **));
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static int number_option __ARGS((char *, long *, int));
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/*
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* Option variables
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*/
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extern char *progname;
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extern int debug;
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extern int modem;
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extern int crtscts;
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extern int nodetach;
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extern char *connector;
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extern int inspeed;
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extern char devname[];
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extern int default_device;
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extern u_long netmask;
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extern int detach;
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extern char user[];
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extern char passwd[];
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extern int auth_required;
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extern int proxyarp;
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extern int persist;
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extern int uselogin;
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extern char our_name[];
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extern char remote_name[];
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int usehostname;
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/*
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* Valid arguments.
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*/
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static struct cmd {
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char *cmd_name;
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int num_args;
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int (*cmd_func)();
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} cmds[] = {
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"-all", 0, noopt, /* Don't request/allow any options */
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"-ac", 0, noaccomp, /* Disable Address/Control compress */
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"-am", 0, noasyncmap, /* Disable asyncmap negotiation */
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"-as", 1, setasyncmap, /* set the desired async map */
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"-d", 0, setdebug, /* Increase debugging level */
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"-detach", 0, setnodetach, /* don't fork */
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"-ip", 0, noipaddr, /* Disable IP address negotiation */
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"-mn", 0, nomagicnumber, /* Disable magic number negotiation */
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"-mru", 0, nomru, /* Disable mru negotiation */
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"-p", 0, setpassive, /* Set passive mode */
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"-pc", 0, nopcomp, /* Disable protocol field compress */
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"+ua", 1, setupapfile, /* Get PAP user and password from file */
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"+pap", 0, reqpap, /* Require PAP auth from peer */
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"-pap", 0, nopap, /* Don't allow UPAP authentication with peer */
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"+chap", 0, reqchap, /* Require CHAP authentication from peer */
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"-chap", 0, nochap, /* Don't allow CHAP authentication with peer */
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"-vj", 0, setnovj, /* disable VJ compression */
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"asyncmap", 1, setasyncmap, /* set the desired async map */
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"connect", 1, setconnector, /* A program to set up a connection */
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"crtscts", 0, setcrtscts, /* set h/w flow control */
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"debug", 0, setdebug, /* Increase debugging level */
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"domain", 1, setdomain, /* Add given domain name to hostname*/
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"mru", 1, setmru, /* Set MRU value for negotiation */
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"netmask", 1, setnetmask, /* set netmask */
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"passive", 0, setpassive, /* Set passive mode */
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"silent", 0, setsilent, /* Set silent mode */
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"modem", 0, setmodem, /* Use modem control lines */
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"local", 0, setlocal, /* Don't use modem control lines */
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"name", 1, setname, /* Set local name for authentication */
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"user", 1, setuser, /* Set username for PAP auth with peer */
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"usehostname", 0, setusehostname, /* Must use hostname for auth. */
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"remotename", 1, setremote, /* Set remote name for authentication */
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"auth", 0, setauth, /* Require authentication from peer */
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"file", 1, readfile, /* Take options from a file */
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"defaultroute", 0, setdefaultroute, /* Add default route */
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"proxyarp", 0, setproxyarp, /* Add proxy ARP entry */
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"persist", 0, setpersist, /* Keep on reopening connection after close */
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"login", 0, setdologin, /* Use system password database for UPAP */
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"lcp-restart", 1, setlcptimeout, /* Set timeout for LCP */
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"lcp-max-terminate", 1, setlcpterm, /* Set max #xmits for term-reqs */
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"lcp-max-configure", 1, setlcpconf, /* Set max #xmits for conf-reqs */
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"lcp-max-failure", 1, setlcpfails, /* Set max #conf-naks for LCP */
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"ipcp-restart", 1, setipcptimeout, /* Set timeout for IPCP */
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"ipcp-max-terminate", 1, setipcpterm, /* Set max #xmits for term-reqs */
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"ipcp-max-configure", 1, setipcpconf, /* Set max #xmits for conf-reqs */
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"ipcp-max-failure", 1, setipcpfails, /* Set max #conf-naks for IPCP */
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"pap-restart", 1, setpaptimeout, /* Set timeout for UPAP */
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"pap-max-authreq", 1, setpapreqs, /* Set max #xmits for auth-reqs */
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"chap-restart", 1, setchaptimeout, /* Set timeout for CHAP */
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"chap-max-challenge", 1, setchapchal, /* Set max #xmits for challenge */
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"chap-interval", 1, setchapintv, /* Set interval for rechallenge */
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NULL
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};
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static char *usage_string = "\
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pppd version %s patch level %d\n\
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Usage: %s [ arguments ], where arguments are:\n\
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<device> Communicate over the named device\n\
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<speed> Set the baud rate to <speed>\n\
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<loc>:<rem> Set the local and/or remote interface IP\n\
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addresses. Either one may be omitted.\n\
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asyncmap <n> Set the desired async map to hex <n>\n\
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auth Require authentication from peer\n\
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connect <p> Invoke shell command <p> to set up the serial line\n\
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crtscts Use hardware RTS/CTS flow control\n\
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defaultroute Add default route through interface\n\
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file <f> Take options from file <f>\n\
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modem Use modem control lines\n\
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mru <n> Set MRU value to <n> for negotiation\n\
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netmask <n> Set interface netmask to <n>\n\
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See pppd(8) for more options.\n\
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";
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/*
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Options omitted:
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-all Don't request/allow any options\n\
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-ac Disable Address/Control compression\n\
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-am Disable asyncmap negotiation\n\
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-as <n> Set the desired async map to hex <n>\n\
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-d Increase debugging level\n\
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-detach Don't fork to background\n\
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-ip Disable IP address negotiation\n\
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-mn Disable magic number negotiation\n\
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-mru Disable mru negotiation\n\
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-p Set passive mode\n\
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-pc Disable protocol field compression\n\
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+ua <f> Get username and password for authenticating\n\
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with peer using PAP from file <f>\n\
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+pap Require PAP authentication from peer\n\
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-pap Don't agree to authenticating with peer using PAP\n\
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+chap Require CHAP authentication from peer\n\
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-chap Don't agree to authenticating with peer using CHAP\n\
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-vj disable VJ compression\n\
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-auth Don't agree to authenticate with peer\n\
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debug Increase debugging level\n\
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domain <d> Append domain name <d> to hostname for authentication\n\
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passive Set passive mode\n\
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local Don't use modem control lines\n\
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proxyarp Add proxy ARP entry\n\
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*/
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/*
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* parse_args - parse a string of arguments, from the command
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* line or from a file.
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*/
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int
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parse_args(argc, argv)
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int argc;
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char **argv;
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{
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char *arg, *val;
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struct cmd *cmdp;
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while (argc > 0) {
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arg = *argv++;
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--argc;
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/*
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* First see if it's a command.
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*/
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for (cmdp = cmds; cmdp->cmd_name; cmdp++)
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if (!strcmp(arg, cmdp->cmd_name))
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break;
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if (cmdp->cmd_name != NULL) {
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if (argc < cmdp->num_args) {
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fprintf(stderr, "Too few parameters for command %s\n", arg);
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return 0;
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}
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if (!(*cmdp->cmd_func)(argv))
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return 0;
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argc -= cmdp->num_args;
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argv += cmdp->num_args;
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} else {
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/*
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* Maybe a tty name, speed or IP address?
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*/
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if (!setdevname(arg) && !setspeed(arg) && !setipaddr(arg)) {
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fprintf(stderr, "%s: unrecognized command\n", arg);
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usage();
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return 0;
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}
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}
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}
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return 1;
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}
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/*
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* usage - print out a message telling how to use the program.
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*/
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usage()
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{
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fprintf(stderr, usage_string, VERSION, PATCHLEVEL, progname);
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}
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/*
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* options_from_file - Read a string of options from a file,
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* and interpret them.
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*/
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int
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options_from_file(filename, must_exist)
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char *filename;
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int must_exist;
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{
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FILE *f;
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int i, newline;
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struct cmd *cmdp;
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char *argv[MAXARGS];
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char args[MAXARGS][MAXWORDLEN];
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char cmd[MAXWORDLEN];
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if ((f = fopen(filename, "r")) == NULL) {
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if (!must_exist && errno == ENOENT)
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return 1;
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perror(filename);
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exit(1);
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}
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while (getword(f, cmd, &newline, filename)) {
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/*
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* First see if it's a command.
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*/
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for (cmdp = cmds; cmdp->cmd_name; cmdp++)
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if (!strcmp(cmd, cmdp->cmd_name))
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break;
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if (cmdp->cmd_name != NULL) {
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for (i = 0; i < cmdp->num_args; ++i) {
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if (!getword(f, args[i], &newline, filename)) {
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fprintf(stderr,
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"In file %s: too few parameters for command %s\n",
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filename, cmd);
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fclose(f);
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return 0;
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}
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argv[i] = args[i];
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}
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if (!(*cmdp->cmd_func)(argv)) {
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fclose(f);
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return 0;
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}
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} else {
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/*
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* Maybe a tty name, speed or IP address?
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*/
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if (!setdevname(cmd) && !setspeed(cmd) && !setipaddr(cmd)) {
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fprintf(stderr, "In file %s: unrecognized command %s\n",
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filename, cmd);
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fclose(f);
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return 0;
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}
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}
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}
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return 1;
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}
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/*
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* options_from_user - See if the use has a ~/.ppprc file,
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* and if so, interpret options from it.
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*/
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int
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options_from_user()
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{
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char *user, *path, *file;
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int ret;
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if ((user = getenv("HOME")) == NULL)
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return;
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file = "/.ppprc";
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path = malloc(strlen(user) + strlen(file) + 1);
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if (path == NULL)
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novm("init file name");
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strcpy(path, user);
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strcat(path, file);
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ret = options_from_file(path, 0);
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free(path);
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return ret;
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}
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/*
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* Read a word from a file.
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* Words are delimited by white-space or by quotes (").
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* Quotes, white-space and \ may be escaped with \.
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* \<newline> is ignored.
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*/
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int
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getword(f, word, newlinep, filename)
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FILE *f;
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char *word;
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int *newlinep;
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char *filename;
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{
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int c, len, escape;
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int quoted;
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*newlinep = 0;
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len = 0;
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escape = 0;
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quoted = 0;
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/*
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* First skip white-space and comments
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*/
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while ((c = getc(f)) != EOF) {
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if (c == '\\') {
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/*
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* \<newline> is ignored; \ followed by anything else
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* starts a word.
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*/
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if ((c = getc(f)) == '\n')
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continue;
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word[len++] = '\\';
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escape = 1;
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break;
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}
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if (c == '\n')
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*newlinep = 1; /* next word starts a line */
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else if (c == '#') {
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/* comment - ignore until EOF or \n */
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while ((c = getc(f)) != EOF && c != '\n')
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;
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if (c == EOF)
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break;
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*newlinep = 1;
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} else if (!isspace(c))
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break;
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}
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/*
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* End of file or error - fail
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*/
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if (c == EOF) {
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if (ferror(f)) {
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perror(filename);
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die(1);
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}
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return 0;
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}
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for (;;) {
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/*
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* Is this character escaped by \ ?
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*/
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if (escape) {
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if (c == '\n')
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--len; /* ignore \<newline> */
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else if (c == '"' || isspace(c) || c == '\\')
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word[len-1] = c; /* put special char in word */
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else {
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if (len < MAXWORDLEN-1)
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word[len] = c;
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++len;
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}
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escape = 0;
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} else if (c == '"') {
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quoted = !quoted;
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} else if (!quoted && (isspace(c) || c == '#')) {
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ungetc(c, f);
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break;
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} else {
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if (len < MAXWORDLEN-1)
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word[len] = c;
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++len;
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if (c == '\\')
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quoted = 1;
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}
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if ((c = getc(f)) == EOF)
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break;
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}
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if (ferror(f)) {
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perror(filename);
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die(1);
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}
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if (len >= MAXWORDLEN) {
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word[MAXWORDLEN-1] = 0;
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fprintf(stderr, "%s: warning: word in file %s too long (%.20s...)\n",
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progname, filename, word);
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} else
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word[len] = 0;
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return 1;
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}
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|
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/*
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* number_option - parse a numeric parameter for an option
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*/
|
|
static int
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number_option(str, valp, base)
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char *str;
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long *valp;
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int base;
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{
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char *ptr;
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*valp = strtol(str, &ptr, base);
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|
if (ptr == str) {
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fprintf(stderr, "%s: invalid number: %s\n", progname, str);
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return 0;
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}
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return 1;
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}
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|
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/*
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|
* int_option - like number_option, but valp is int *,
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* the base is assumed to be 0, and *valp is not changed
|
|
* if there is an error.
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|
*/
|
|
static int
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int_option(str, valp)
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|
char *str;
|
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int *valp;
|
|
{
|
|
long v;
|
|
|
|
if (!number_option(str, &v, 0))
|
|
return 0;
|
|
*valp = (int) v;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* The following procedures execute commands.
|
|
*/
|
|
|
|
/*
|
|
* readfile - take commands from a file.
|
|
*/
|
|
static int
|
|
readfile(argv)
|
|
char **argv;
|
|
{
|
|
return options_from_file(*argv, 1);
|
|
}
|
|
|
|
/*
|
|
* setdebug - Set debug (command line argument).
|
|
*/
|
|
static int
|
|
setdebug()
|
|
{
|
|
debug++;
|
|
setlogmask(LOG_UPTO(LOG_DEBUG));
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* noopt - Disable all options.
|
|
*/
|
|
static int
|
|
noopt()
|
|
{
|
|
BZERO((char *) &lcp_wantoptions[0], sizeof (struct lcp_options));
|
|
BZERO((char *) &lcp_allowoptions[0], sizeof (struct lcp_options));
|
|
BZERO((char *) &ipcp_wantoptions[0], sizeof (struct ipcp_options));
|
|
BZERO((char *) &ipcp_allowoptions[0], sizeof (struct ipcp_options));
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* noaccomp - Disable Address/Control field compression negotiation.
|
|
*/
|
|
static int
|
|
noaccomp()
|
|
{
|
|
lcp_wantoptions[0].neg_accompression = 0;
|
|
lcp_allowoptions[0].neg_accompression = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* noasyncmap - Disable async map negotiation.
|
|
*/
|
|
static int
|
|
noasyncmap()
|
|
{
|
|
lcp_wantoptions[0].neg_asyncmap = 0;
|
|
lcp_allowoptions[0].neg_asyncmap = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* noipaddr - Disable IP address negotiation.
|
|
*/
|
|
static int
|
|
noipaddr()
|
|
{
|
|
ipcp_wantoptions[0].neg_addr = 0;
|
|
ipcp_allowoptions[0].neg_addr = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* nomagicnumber - Disable magic number negotiation.
|
|
*/
|
|
static int
|
|
nomagicnumber()
|
|
{
|
|
lcp_wantoptions[0].neg_magicnumber = 0;
|
|
lcp_allowoptions[0].neg_magicnumber = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* nomru - Disable mru negotiation.
|
|
*/
|
|
static int
|
|
nomru()
|
|
{
|
|
lcp_wantoptions[0].neg_mru = 0;
|
|
lcp_allowoptions[0].neg_mru = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setmru - Set MRU for negotiation.
|
|
*/
|
|
static int
|
|
setmru(argv)
|
|
char **argv;
|
|
{
|
|
long mru;
|
|
|
|
if (!number_option(*argv, &mru, 0))
|
|
return 0;
|
|
lcp_wantoptions[0].mru = mru;
|
|
lcp_wantoptions[0].neg_mru = 1;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* nopcomp - Disable Protocol field compression negotiation.
|
|
*/
|
|
static int
|
|
nopcomp()
|
|
{
|
|
lcp_wantoptions[0].neg_pcompression = 0;
|
|
lcp_allowoptions[0].neg_pcompression = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setpassive - Set passive mode (don't give up if we time out sending
|
|
* LCP configure-requests).
|
|
*/
|
|
static int
|
|
setpassive()
|
|
{
|
|
lcp_wantoptions[0].passive = 1;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setsilent - Set silent mode (don't start sending LCP configure-requests
|
|
* until we get one from the peer).
|
|
*/
|
|
static int
|
|
setsilent()
|
|
{
|
|
lcp_wantoptions[0].silent = 1;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* nopap - Disable PAP authentication with peer.
|
|
*/
|
|
static int
|
|
nopap()
|
|
{
|
|
lcp_allowoptions[0].neg_upap = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* reqpap - Require PAP authentication from peer.
|
|
*/
|
|
static int
|
|
reqpap()
|
|
{
|
|
lcp_wantoptions[0].neg_upap = 1;
|
|
auth_required = 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* setupapfile - specifies UPAP info for authenticating with peer.
|
|
*/
|
|
static int
|
|
setupapfile(argv)
|
|
char **argv;
|
|
{
|
|
FILE * ufile;
|
|
int l;
|
|
|
|
lcp_allowoptions[0].neg_upap = 1;
|
|
|
|
/* open user info file */
|
|
if ((ufile = fopen(*argv, "r")) == NULL) {
|
|
fprintf(stderr, "unable to open user login data file %s\n", *argv);
|
|
exit(1);
|
|
}
|
|
check_access(ufile, *argv);
|
|
|
|
/* get username */
|
|
if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
|
|
|| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
|
|
fprintf(stderr, "Unable to read user login data file %s.\n", *argv);
|
|
exit(2);
|
|
}
|
|
fclose(ufile);
|
|
|
|
/* get rid of newlines */
|
|
l = strlen(user);
|
|
if (l > 0 && user[l-1] == '\n')
|
|
user[l-1] = 0;
|
|
l = strlen(passwd);
|
|
if (l > 0 && passwd[l-1] == '\n')
|
|
passwd[l-1] = 0;
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* nochap - Disable CHAP authentication with peer.
|
|
*/
|
|
static int
|
|
nochap()
|
|
{
|
|
lcp_allowoptions[0].neg_chap = 0;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* reqchap - Require CHAP authentication from peer.
|
|
*/
|
|
static int
|
|
reqchap()
|
|
{
|
|
lcp_wantoptions[0].neg_chap = 1;
|
|
auth_required = 1;
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setnovj - diable vj compression
|
|
*/
|
|
static int
|
|
setnovj()
|
|
{
|
|
ipcp_wantoptions[0].neg_vj = 0;
|
|
ipcp_allowoptions[0].neg_vj = 0;
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* setconnector - Set a program to connect to a serial line
|
|
*/
|
|
static int
|
|
setconnector(argv)
|
|
char **argv;
|
|
{
|
|
connector = strdup(*argv);
|
|
if (connector == NULL)
|
|
novm("connector string");
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setdomain - Set domain name to append to hostname
|
|
*/
|
|
static int
|
|
setdomain(argv)
|
|
char **argv;
|
|
{
|
|
strncat(hostname, *argv, MAXNAMELEN - strlen(hostname));
|
|
hostname[MAXNAMELEN-1] = 0;
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
setasyncmap(argv)
|
|
char **argv;
|
|
{
|
|
long asyncmap;
|
|
|
|
if (!number_option(*argv, &asyncmap, 16))
|
|
return 0;
|
|
lcp_wantoptions[0].asyncmap |= asyncmap;
|
|
lcp_wantoptions[0].neg_asyncmap = 1;
|
|
return(1);
|
|
}
|
|
|
|
/*
|
|
* setspeed - Set the speed.
|
|
*/
|
|
static int
|
|
setspeed(arg)
|
|
char *arg;
|
|
{
|
|
char *ptr;
|
|
int spd;
|
|
|
|
spd = strtol(arg, &ptr, 0);
|
|
if (ptr == arg || *ptr != 0 || spd == 0)
|
|
return 0;
|
|
inspeed = spd;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
* setdevname - Set the device name.
|
|
*/
|
|
int
|
|
setdevname(cp)
|
|
char *cp;
|
|
{
|
|
struct stat statbuf;
|
|
char *tty, *ttyname();
|
|
char dev[MAXPATHLEN];
|
|
|
|
if (strncmp("/dev/", cp, 5) != 0) {
|
|
strcpy(dev, "/dev/");
|
|
strncat(dev, cp, MAXPATHLEN - 5);
|
|
dev[MAXPATHLEN-1] = 0;
|
|
cp = dev;
|
|
}
|
|
|
|
/*
|
|
* Check if there is a device by this name.
|
|
*/
|
|
if (stat(cp, &statbuf) < 0) {
|
|
if (errno == ENOENT)
|
|
return (0);
|
|
syslog(LOG_ERR, cp);
|
|
exit(1);
|
|
}
|
|
|
|
(void) strncpy(devname, cp, MAXPATHLEN);
|
|
devname[MAXPATHLEN-1] = 0;
|
|
default_device = FALSE;
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setipaddr - Set the IP address
|
|
*/
|
|
int
|
|
setipaddr(arg)
|
|
char *arg;
|
|
{
|
|
struct hostent *hp;
|
|
char *colon, *index();
|
|
u_long local, remote;
|
|
ipcp_options *wo = &ipcp_wantoptions[0];
|
|
|
|
/*
|
|
* IP address pair separated by ":".
|
|
*/
|
|
if ((colon = index(arg, ':')) == NULL)
|
|
return (0);
|
|
|
|
/*
|
|
* If colon first character, then no local addr.
|
|
*/
|
|
if (colon != arg) {
|
|
*colon = '\0';
|
|
if ((local = inet_addr(arg)) == -1) {
|
|
if ((hp = gethostbyname(arg)) == NULL) {
|
|
fprintf(stderr, "unknown host: %s", arg);
|
|
local = 0;
|
|
} else {
|
|
local = *(long *)hp->h_addr;
|
|
if (our_name[0] == 0) {
|
|
strncpy(our_name, arg, MAXNAMELEN);
|
|
our_name[MAXNAMELEN-1] = 0;
|
|
}
|
|
}
|
|
}
|
|
if (local != 0)
|
|
wo->ouraddr = local;
|
|
*colon = ':';
|
|
}
|
|
|
|
/*
|
|
* If colon last character, then no remote addr.
|
|
*/
|
|
if (*++colon != '\0') {
|
|
if ((remote = inet_addr(colon)) == -1) {
|
|
if ((hp = gethostbyname(colon)) == NULL) {
|
|
fprintf(stderr, "unknown host: %s", colon);
|
|
remote = 0;
|
|
} else {
|
|
remote = *(long *)hp->h_addr;
|
|
if (remote_name[0] == 0) {
|
|
strncpy(remote_name, colon, MAXNAMELEN);
|
|
remote_name[MAXNAMELEN-1] = 0;
|
|
}
|
|
}
|
|
}
|
|
if (remote != 0)
|
|
wo->hisaddr = remote;
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* setipdefault - default our local IP address based on our hostname.
|
|
*/
|
|
void
|
|
setipdefault()
|
|
{
|
|
struct hostent *hp;
|
|
u_long local;
|
|
ipcp_options *wo = &ipcp_wantoptions[0];
|
|
|
|
/*
|
|
* If local IP address already given, don't bother.
|
|
*/
|
|
if (wo->ouraddr != 0)
|
|
return;
|
|
|
|
/*
|
|
* Look up our hostname (possibly with domain name appended)
|
|
* and take the first IP address as our local IP address.
|
|
* If there isn't an IP address for our hostname, too bad.
|
|
*/
|
|
if ((hp = gethostbyname(hostname)) == NULL)
|
|
return;
|
|
local = *(long *)hp->h_addr;
|
|
if (local != 0)
|
|
wo->ouraddr = local;
|
|
}
|
|
|
|
|
|
/*
|
|
* setnetmask - set the netmask to be used on the interface.
|
|
*/
|
|
static int
|
|
setnetmask(argv)
|
|
char **argv;
|
|
{
|
|
u_long mask;
|
|
|
|
if ((mask = inet_addr(*argv)) == -1) {
|
|
fprintf(stderr, "Invalid netmask %s\n", *argv);
|
|
exit(1);
|
|
}
|
|
|
|
netmask = mask;
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
setcrtscts()
|
|
{
|
|
crtscts = 1;
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
setnodetach()
|
|
{
|
|
nodetach = 1;
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
setmodem()
|
|
{
|
|
modem = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setlocal()
|
|
{
|
|
modem = 0;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setusehostname()
|
|
{
|
|
usehostname = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setname(argv)
|
|
char **argv;
|
|
{
|
|
if (our_name[0] == 0) {
|
|
strncpy(our_name, argv[0], MAXNAMELEN);
|
|
our_name[MAXNAMELEN-1] = 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setuser(argv)
|
|
char **argv;
|
|
{
|
|
strncpy(user, argv[0], MAXNAMELEN);
|
|
user[MAXNAMELEN-1] = 0;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setremote(argv)
|
|
char **argv;
|
|
{
|
|
strncpy(remote_name, argv[0], MAXNAMELEN);
|
|
remote_name[MAXNAMELEN-1] = 0;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setauth()
|
|
{
|
|
auth_required = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setdefaultroute()
|
|
{
|
|
ipcp_wantoptions[0].default_route = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setproxyarp()
|
|
{
|
|
ipcp_wantoptions[0].proxy_arp = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setpersist()
|
|
{
|
|
persist = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
setdologin()
|
|
{
|
|
uselogin = 1;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Functions to set timeouts, max transmits, etc.
|
|
*/
|
|
static int
|
|
setlcptimeout(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &lcp_fsm[0].timeouttime, 0);
|
|
}
|
|
|
|
static int setlcpterm(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &lcp_fsm[0].maxtermtransmits, 0);
|
|
}
|
|
|
|
static int setlcpconf(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &lcp_fsm[0].maxconfreqtransmits, 0);
|
|
}
|
|
|
|
static int setlcpfails(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &lcp_fsm[0].maxnakloops, 0);
|
|
}
|
|
|
|
static int setipcptimeout(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &ipcp_fsm[0].timeouttime, 0);
|
|
}
|
|
|
|
static int setipcpterm(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &ipcp_fsm[0].maxtermtransmits, 0);
|
|
}
|
|
|
|
static int setipcpconf(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &ipcp_fsm[0].maxconfreqtransmits, 0);
|
|
}
|
|
|
|
static int setipcpfails(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &lcp_fsm[0].maxnakloops, 0);
|
|
}
|
|
|
|
static int setpaptimeout(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &upap[0].us_timeouttime, 0);
|
|
}
|
|
|
|
static int setpapreqs(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &upap[0].us_maxtransmits, 0);
|
|
}
|
|
|
|
static int setchaptimeout(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &chap[0].timeouttime, 0);
|
|
}
|
|
|
|
static int setchapchal(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &chap[0].max_transmits, 0);
|
|
}
|
|
|
|
static int setchapintv(argv)
|
|
char **argv;
|
|
{
|
|
return int_option(*argv, &chap[0].chal_interval, 0);
|
|
}
|