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Diffstat (limited to 'libexec/pppd/options.c')
| -rw-r--r-- | libexec/pppd/options.c | 1195 |
1 files changed, 1195 insertions, 0 deletions
diff --git a/libexec/pppd/options.c b/libexec/pppd/options.c new file mode 100644 index 000000000000..9f622b1ba4c0 --- /dev/null +++ b/libexec/pppd/options.c @@ -0,0 +1,1195 @@ +/* + * options.c - handles option processing for PPP. + * + * Copyright (c) 1989 Carnegie Mellon University. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by Carnegie Mellon University. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef lint +static char rcsid[] = "$Id: options.c,v 1.1 1994/03/30 09:38:16 jkh Exp $"; +#endif + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <termios.h> +#include <syslog.h> +#include <string.h> +#include <netdb.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include "ppp.h" +#include "pppd.h" +#include "pathnames.h" +#include "patchlevel.h" +#include "fsm.h" +#include "lcp.h" +#include "ipcp.h" +#include "upap.h" +#include "chap.h" + +#define FALSE 0 +#define TRUE 1 + + +/* + * Prototypes + */ +static int setdebug __ARGS((void)); +static int setpassive __ARGS((void)); +static int setsilent __ARGS((void)); +static int noopt __ARGS((void)); +static int setnovj __ARGS((void)); +static int reqpap __ARGS((void)); +static int nopap __ARGS((void)); +static int setupapfile __ARGS((char **)); +static int nochap __ARGS((void)); +static int reqchap __ARGS((void)); +static int setspeed __ARGS((char *)); +static int noaccomp __ARGS((void)); +static int noasyncmap __ARGS((void)); +static int noipaddr __ARGS((void)); +static int nomagicnumber __ARGS((void)); +static int setasyncmap __ARGS((char **)); +static int setmru __ARGS((char **)); +static int nomru __ARGS((void)); +static int nopcomp __ARGS((void)); +static int setconnector __ARGS((char **)); +static int setdomain __ARGS((char **)); +static int setnetmask __ARGS((char **)); +static int setcrtscts __ARGS((void)); +static int setnodetach __ARGS((void)); +static int setmodem __ARGS((void)); +static int setlocal __ARGS((void)); +static int setname __ARGS((char **)); +static int setuser __ARGS((char **)); +static int setremote __ARGS((char **)); +static int setauth __ARGS((void)); +static int readfile __ARGS((char **)); +static int setdefaultroute __ARGS((void)); +static int setproxyarp __ARGS((void)); +static int setpersist __ARGS((void)); +static int setdologin __ARGS((void)); +static int setusehostname __ARGS((void)); +static int setnoipdflt __ARGS((void)); +static int setlcptimeout __ARGS((char **)); +static int setlcpterm __ARGS((char **)); +static int setlcpconf __ARGS((char **)); +static int setlcpfails __ARGS((char **)); +static int setipcptimeout __ARGS((char **)); +static int setipcpterm __ARGS((char **)); +static int setipcpconf __ARGS((char **)); +static int setipcpfails __ARGS((char **)); +static int setpaptimeout __ARGS((char **)); +static int setpapreqs __ARGS((char **)); +static int setchaptimeout __ARGS((char **)); +static int setchapchal __ARGS((char **)); +static int setchapintv __ARGS((char **)); +static int setipcpaccl __ARGS((void)); +static int setipcpaccr __ARGS((void)); + +static int number_option __ARGS((char *, long *, int)); + + +/* + * Option variables + */ +extern char *progname; +extern int debug; +extern int modem; +extern int crtscts; +extern int nodetach; +extern char *connector; +extern int inspeed; +extern char devname[]; +extern int default_device; +extern u_long netmask; +extern int detach; +extern char user[]; +extern char passwd[]; +extern int auth_required; +extern int proxyarp; +extern int persist; +extern int uselogin; +extern char our_name[]; +extern char remote_name[]; +int usehostname; +int disable_defaultip; + +/* + * Valid arguments. + */ +static struct cmd { + char *cmd_name; + int num_args; + int (*cmd_func)(); +} cmds[] = { + "-all", 0, noopt, /* Don't request/allow any options */ + "-ac", 0, noaccomp, /* Disable Address/Control compress */ + "-am", 0, noasyncmap, /* Disable asyncmap negotiation */ + "-as", 1, setasyncmap, /* set the desired async map */ + "-d", 0, setdebug, /* Increase debugging level */ + "-detach", 0, setnodetach, /* don't fork */ + "-ip", 0, noipaddr, /* Disable IP address negotiation */ + "-mn", 0, nomagicnumber, /* Disable magic number negotiation */ + "-mru", 0, nomru, /* Disable mru negotiation */ + "-p", 0, setpassive, /* Set passive mode */ + "-pc", 0, nopcomp, /* Disable protocol field compress */ + "+ua", 1, setupapfile, /* Get PAP user and password from file */ + "+pap", 0, reqpap, /* Require PAP auth from peer */ + "-pap", 0, nopap, /* Don't allow UPAP authentication with peer */ + "+chap", 0, reqchap, /* Require CHAP authentication from peer */ + "-chap", 0, nochap, /* Don't allow CHAP authentication with peer */ + "-vj", 0, setnovj, /* disable VJ compression */ + "asyncmap", 1, setasyncmap, /* set the desired async map */ + "connect", 1, setconnector, /* A program to set up a connection */ + "crtscts", 0, setcrtscts, /* set h/w flow control */ + "debug", 0, setdebug, /* Increase debugging level */ + "domain", 1, setdomain, /* Add given domain name to hostname*/ + "mru", 1, setmru, /* Set MRU value for negotiation */ + "netmask", 1, setnetmask, /* set netmask */ + "passive", 0, setpassive, /* Set passive mode */ + "silent", 0, setsilent, /* Set silent mode */ + "modem", 0, setmodem, /* Use modem control lines */ + "local", 0, setlocal, /* Don't use modem control lines */ + "name", 1, setname, /* Set local name for authentication */ + "user", 1, setuser, /* Set username for PAP auth with peer */ + "usehostname", 0, setusehostname, /* Must use hostname for auth. */ + "remotename", 1, setremote, /* Set remote name for authentication */ + "auth", 0, setauth, /* Require authentication from peer */ + "file", 1, readfile, /* Take options from a file */ + "defaultroute", 0, setdefaultroute, /* Add default route */ + "proxyarp", 0, setproxyarp, /* Add proxy ARP entry */ + "persist", 0, setpersist, /* Keep on reopening connection after close */ + "login", 0, setdologin, /* Use system password database for UPAP */ + "noipdefault", 0, setnoipdflt, /* Don't use name for default IP adrs */ + "lcp-restart", 1, setlcptimeout, /* Set timeout for LCP */ + "lcp-max-terminate", 1, setlcpterm, /* Set max #xmits for term-reqs */ + "lcp-max-configure", 1, setlcpconf, /* Set max #xmits for conf-reqs */ + "lcp-max-failure", 1, setlcpfails, /* Set max #conf-naks for LCP */ + "ipcp-restart", 1, setipcptimeout, /* Set timeout for IPCP */ + "ipcp-max-terminate", 1, setipcpterm, /* Set max #xmits for term-reqs */ + "ipcp-max-configure", 1, setipcpconf, /* Set max #xmits for conf-reqs */ + "ipcp-max-failure", 1, setipcpfails, /* Set max #conf-naks for IPCP */ + "pap-restart", 1, setpaptimeout, /* Set timeout for UPAP */ + "pap-max-authreq", 1, setpapreqs, /* Set max #xmits for auth-reqs */ + "chap-restart", 1, setchaptimeout, /* Set timeout for CHAP */ + "chap-max-challenge", 1, setchapchal, /* Set max #xmits for challenge */ + "chap-interval", 1, setchapintv, /* Set interval for rechallenge */ + "ipcp-accept-local", 0, setipcpaccl, /* Accept peer's address for us */ + "ipcp-accept-remote", 0, setipcpaccr, /* Accept peer's address for it */ + NULL +}; + + +static char *usage_string = "\ +pppd version %s patch level %d\n\ +Usage: %s [ arguments ], where arguments are:\n\ + <device> Communicate over the named device\n\ + <speed> Set the baud rate to <speed>\n\ + <loc>:<rem> Set the local and/or remote interface IP\n\ + addresses. Either one may be omitted.\n\ + asyncmap <n> Set the desired async map to hex <n>\n\ + auth Require authentication from peer\n\ + connect <p> Invoke shell command <p> to set up the serial line\n\ + crtscts Use hardware RTS/CTS flow control\n\ + defaultroute Add default route through interface\n\ + file <f> Take options from file <f>\n\ + modem Use modem control lines\n\ + mru <n> Set MRU value to <n> for negotiation\n\ + netmask <n> Set interface netmask to <n>\n\ +See pppd(8) for more options.\n\ +"; + +/* +Options omitted: + -all Don't request/allow any options\n\ + -ac Disable Address/Control compression\n\ + -am Disable asyncmap negotiation\n\ + -as <n> Set the desired async map to hex <n>\n\ + -d Increase debugging level\n\ + -detach Don't fork to background\n\ + -ip Disable IP address negotiation\n\ + -mn Disable magic number negotiation\n\ + -mru Disable mru negotiation\n\ + -p Set passive mode\n\ + -pc Disable protocol field compression\n\ + +ua <f> Get username and password for authenticating\n\ + with peer using PAP from file <f>\n\ + +pap Require PAP authentication from peer\n\ + -pap Don't agree to authenticating with peer using PAP\n\ + +chap Require CHAP authentication from peer\n\ + -chap Don't agree to authenticating with peer using CHAP\n\ + -vj disable VJ compression\n\ + -auth Don't agree to authenticate with peer\n\ + debug Increase debugging level\n\ + domain <d> Append domain name <d> to hostname for authentication\n\ + passive Set passive mode\n\ + local Don't use modem control lines\n\ + proxyarp Add proxy ARP entry\n\ +*/ + + +/* + * parse_args - parse a string of arguments, from the command + * line or from a file. + */ +int +parse_args(argc, argv) + int argc; + char **argv; +{ + char *arg, *val; + struct cmd *cmdp; + + while (argc > 0) { + arg = *argv++; + --argc; + + /* + * First see if it's a command. + */ + for (cmdp = cmds; cmdp->cmd_name; cmdp++) + if (!strcmp(arg, cmdp->cmd_name)) + break; + + if (cmdp->cmd_name != NULL) { + if (argc < cmdp->num_args) { + fprintf(stderr, "Too few parameters for command %s\n", arg); + return 0; + } + if (!(*cmdp->cmd_func)(argv)) + return 0; + argc -= cmdp->num_args; + argv += cmdp->num_args; + + } else { + /* + * Maybe a tty name, speed or IP address? + */ + if (!setdevname(arg) && !setspeed(arg) && !setipaddr(arg)) { + fprintf(stderr, "%s: unrecognized command\n", arg); + usage(); + return 0; + } + } + } + return 1; +} + +/* + * usage - print out a message telling how to use the program. + */ +usage() +{ + fprintf(stderr, usage_string, VERSION, PATCHLEVEL, progname); +} + +/* + * options_from_file - Read a string of options from a file, + * and interpret them. + */ +int +options_from_file(filename, must_exist) + char *filename; + int must_exist; +{ + FILE *f; + int i, newline; + struct cmd *cmdp; + char *argv[MAXARGS]; + char args[MAXARGS][MAXWORDLEN]; + char cmd[MAXWORDLEN]; + + if ((f = fopen(filename, "r")) == NULL) { + if (!must_exist && errno == ENOENT) + return 1; + perror(filename); + exit(1); + } + while (getword(f, cmd, &newline, filename)) { + /* + * First see if it's a command. + */ + for (cmdp = cmds; cmdp->cmd_name; cmdp++) + if (!strcmp(cmd, cmdp->cmd_name)) + break; + + if (cmdp->cmd_name != NULL) { + for (i = 0; i < cmdp->num_args; ++i) { + if (!getword(f, args[i], &newline, filename)) { + fprintf(stderr, + "In file %s: too few parameters for command %s\n", + filename, cmd); + fclose(f); + return 0; + } + argv[i] = args[i]; + } + if (!(*cmdp->cmd_func)(argv)) { + fclose(f); + return 0; + } + + } else { + /* + * Maybe a tty name, speed or IP address? + */ + if (!setdevname(cmd) && !setspeed(cmd) && !setipaddr(cmd)) { + fprintf(stderr, "In file %s: unrecognized command %s\n", + filename, cmd); + fclose(f); + return 0; + } + } + } + return 1; +} + +/* + * options_from_user - See if the use has a ~/.ppprc file, + * and if so, interpret options from it. + */ +int +options_from_user() +{ + char *user, *path, *file; + int ret; + + if ((user = getenv("HOME")) == NULL) + return; + file = "/.ppprc"; + path = malloc(strlen(user) + strlen(file) + 1); + if (path == NULL) + novm("init file name"); + strcpy(path, user); + strcat(path, file); + ret = options_from_file(path, 0); + free(path); + return ret; +} + +/* + * Read a word from a file. + * Words are delimited by white-space or by quotes ("). + * Quotes, white-space and \ may be escaped with \. + * \<newline> is ignored. + */ +int +getword(f, word, newlinep, filename) + FILE *f; + char *word; + int *newlinep; + char *filename; +{ + int c, len, escape; + int quoted; + + *newlinep = 0; + len = 0; + escape = 0; + quoted = 0; + + /* + * First skip white-space and comments + */ + while ((c = getc(f)) != EOF) { + if (c == '\\') { + /* + * \<newline> is ignored; \ followed by anything else + * starts a word. + */ + if ((c = getc(f)) == '\n') + continue; + word[len++] = '\\'; + escape = 1; + break; + } + if (c == '\n') + *newlinep = 1; /* next word starts a line */ + else if (c == '#') { + /* comment - ignore until EOF or \n */ + while ((c = getc(f)) != EOF && c != '\n') + ; + if (c == EOF) + break; + *newlinep = 1; + } else if (!isspace(c)) + break; + } + + /* + * End of file or error - fail + */ + if (c == EOF) { + if (ferror(f)) { + perror(filename); + die(1); + } + return 0; + } + + for (;;) { + /* + * Is this character escaped by \ ? + */ + if (escape) { + if (c == '\n') + --len; /* ignore \<newline> */ + else if (c == '"' || isspace(c) || c == '\\') + word[len-1] = c; /* put special char in word */ + else { + if (len < MAXWORDLEN-1) + word[len] = c; + ++len; + } + escape = 0; + } else if (c == '"') { + quoted = !quoted; + } else if (!quoted && (isspace(c) || c == '#')) { + ungetc(c, f); + break; + } else { + if (len < MAXWORDLEN-1) + word[len] = c; + ++len; + if (c == '\\') + escape = 1; + } + if ((c = getc(f)) == EOF) + break; + } + + if (ferror(f)) { + perror(filename); + die(1); + } + + if (len >= MAXWORDLEN) { + word[MAXWORDLEN-1] = 0; + fprintf(stderr, "%s: warning: word in file %s too long (%.20s...)\n", + progname, filename, word); + } else + word[len] = 0; + + return 1; +} + +/* + * number_option - parse a numeric parameter for an option + */ +static int +number_option(str, valp, base) + char *str; + long *valp; + int base; +{ + char *ptr; + + *valp = strtol(str, &ptr, base); + if (ptr == str) { + fprintf(stderr, "%s: invalid number: %s\n", progname, str); + return 0; + } + return 1; +} + + +/* + * int_option - like number_option, but valp is int *, + * the base is assumed to be 0, and *valp is not changed + * if there is an error. + */ +static int +int_option(str, valp) + char *str; + 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); +} + + +/* + * setnoipdflt - disable setipdefault() + */ +static int +setnoipdflt() +{ + disable_defaultip = 1; + return 1; +} + + +/* + * setipcpaccl - accept peer's idea of our address + */ +static int +setipcpaccl() +{ + ipcp_wantoptions[0].accept_local = 1; + return 1; +} + + +/* + * setipcpaccr - accept peer's idea of its address + */ +static int +setipcpaccr() +{ + ipcp_wantoptions[0].accept_remote = 1; + 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 || disable_defaultip) + 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. + */ + wo->accept_local = 1; /* don't insist on this default value */ + 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); +} |