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/*
* Copyright (c) 1997 Joerg Wunsch
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] =
"$FreeBSD: /c/ncvs/src/sbin/spppcontrol/spppcontrol.c,v 1.4.2.2 1999/08/29 15:15:47 peter Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_sppp.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
static void usage(void);
void print_vals(const char *ifname, struct spppreq *sp);
const char *phase_name(enum ppp_phase phase);
const char *proto_name(u_short proto);
const char *authflags(u_short flags);
#define PPP_PAP 0xc023
#define PPP_CHAP 0xc223
int
main(int argc, char **argv)
{
int s, c;
int errs = 0, verbose = 0;
size_t off;
const char *ifname, *cp;
struct ifreq ifr;
struct spppreq spr;
while ((c = getopt(argc, argv, "v")) != -1)
switch (c) {
case 'v':
verbose++;
break;
default:
errs++;
break;
}
argv += optind;
argc -= optind;
if (errs || argc < 1)
usage();
ifname = argv[0];
strncpy(ifr.ifr_name, ifname, sizeof ifr.ifr_name);
/* use a random AF to create the socket */
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
err(EX_UNAVAILABLE, "ifconfig: socket");
argc--;
argv++;
spr.cmd = (int)SPPPIOGDEFS;
ifr.ifr_data = (caddr_t)&spr;
if (ioctl(s, SIOCGIFGENERIC, &ifr) == -1)
err(EX_OSERR, "SIOCGIFGENERIC(SPPPIOGDEFS)");
if (argc == 0) {
/* list only mode */
print_vals(ifname, &spr);
return 0;
}
#define startswith(s) strncmp(argv[0], s, (off = strlen(s))) == 0
while (argc > 0) {
if (startswith("authproto=")) {
cp = argv[0] + off;
if (strcmp(cp, "pap") == 0)
spr.defs.myauth.proto =
spr.defs.hisauth.proto = PPP_PAP;
else if (strcmp(cp, "chap") == 0)
spr.defs.myauth.proto =
spr.defs.hisauth.proto = PPP_CHAP;
else if (strcmp(cp, "none") == 0)
spr.defs.myauth.proto =
spr.defs.hisauth.proto = 0;
else
errx(EX_DATAERR, "bad auth proto: %s", cp);
} else if (startswith("myauthproto=")) {
cp = argv[0] + off;
if (strcmp(cp, "pap") == 0)
spr.defs.myauth.proto = PPP_PAP;
else if (strcmp(cp, "chap") == 0)
spr.defs.myauth.proto = PPP_CHAP;
else if (strcmp(cp, "none") == 0)
spr.defs.myauth.proto = 0;
else
errx(EX_DATAERR, "bad auth proto: %s", cp);
} else if (startswith("myauthname="))
strncpy(spr.defs.myauth.name, argv[0] + off,
AUTHNAMELEN);
else if (startswith("myauthsecret=") ||
startswith("myauthkey="))
strncpy(spr.defs.myauth.secret, argv[0] + off,
AUTHKEYLEN);
else if (startswith("hisauthproto=")) {
cp = argv[0] + off;
if (strcmp(cp, "pap") == 0)
spr.defs.hisauth.proto = PPP_PAP;
else if (strcmp(cp, "chap") == 0)
spr.defs.hisauth.proto = PPP_CHAP;
else if (strcmp(cp, "none") == 0)
spr.defs.hisauth.proto = 0;
else
errx(EX_DATAERR, "bad auth proto: %s", cp);
} else if (startswith("hisauthname="))
strncpy(spr.defs.hisauth.name, argv[0] + off,
AUTHNAMELEN);
else if (startswith("hisauthsecret=") ||
startswith("hisauthkey="))
strncpy(spr.defs.hisauth.secret, argv[0] + off,
AUTHKEYLEN);
else if (strcmp(argv[0], "callin") == 0)
spr.defs.hisauth.flags |= AUTHFLAG_NOCALLOUT;
else if (strcmp(argv[0], "always") == 0)
spr.defs.hisauth.flags &= ~AUTHFLAG_NOCALLOUT;
else if (strcmp(argv[0], "norechallenge") == 0)
spr.defs.hisauth.flags |= AUTHFLAG_NORECHALLENGE;
else if (strcmp(argv[0], "rechallenge") == 0)
spr.defs.hisauth.flags &= ~AUTHFLAG_NORECHALLENGE;
else
errx(EX_DATAERR, "bad parameter: \"%s\"", argv[0]);
argv++;
argc--;
}
spr.cmd = (int)SPPPIOSDEFS;
if (ioctl(s, SIOCSIFGENERIC, &ifr) == -1)
err(EX_OSERR, "SIOCSIFGENERIC(SPPPIOSDEFS)");
if (verbose)
print_vals(ifname, &spr);
return 0;
}
static void
usage(void)
{
fprintf(stderr, "%s\n%s\n",
"usage: spppcontrol [-v] ifname [{my|his}auth{proto|name|secret}=...]",
" spppcontrol [-v] ifname callin|always");
exit(EX_USAGE);
}
void
print_vals(const char *ifname, struct spppreq *sp)
{
printf("%s:\tphase=%s\n", ifname, phase_name(sp->defs.pp_phase));
if (sp->defs.myauth.proto) {
printf("\tmyauthproto=%s myauthname=\"%.*s\"\n",
proto_name(sp->defs.myauth.proto),
AUTHNAMELEN, sp->defs.myauth.name);
}
if (sp->defs.hisauth.proto) {
printf("\thisauthproto=%s hisauthname=\"%.*s\"%s\n",
proto_name(sp->defs.hisauth.proto),
AUTHNAMELEN, sp->defs.hisauth.name,
authflags(sp->defs.hisauth.flags));
}
}
const char *
phase_name(enum ppp_phase phase)
{
switch (phase) {
case PHASE_DEAD: return "dead";
case PHASE_ESTABLISH: return "establish";
case PHASE_TERMINATE: return "terminate";
case PHASE_AUTHENTICATE: return "authenticate";
case PHASE_NETWORK: return "network";
}
return "illegal";
}
const char *
proto_name(u_short proto)
{
static char buf[12];
switch (proto) {
case PPP_PAP: return "pap";
case PPP_CHAP: return "chap";
}
snprintf(buf, sizeof buf, "0x%x", (unsigned)proto);
return buf;
}
const char *
authflags(u_short flags)
{
static char buf[30];
buf[0] = '\0';
if (flags & AUTHFLAG_NOCALLOUT)
strlcat(buf, " callin", sizeof buf);
if (flags & AUTHFLAG_NORECHALLENGE)
strlcat(buf, " norechallenge", sizeof buf);
return buf;
}
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