267 lines
7.2 KiB
C
267 lines
7.2 KiB
C
/*
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* Copyright (c) 1997, 2001 Joerg Wunsch
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_sppp.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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static void usage(void);
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void print_vals(const char *ifname, struct spppreq *sp);
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const char *phase_name(enum ppp_phase phase);
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const char *proto_name(u_short proto);
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const char *authflags(u_short flags);
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#define PPP_PAP 0xc023
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#define PPP_CHAP 0xc223
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int
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main(int argc, char **argv)
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{
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int s, c;
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int errs = 0, verbose = 0;
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size_t off;
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long to;
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char *endp;
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const char *ifname, *cp;
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struct ifreq ifr;
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struct spppreq spr;
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while ((c = getopt(argc, argv, "v")) != -1)
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switch (c) {
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case 'v':
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verbose++;
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break;
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default:
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errs++;
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break;
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}
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argv += optind;
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argc -= optind;
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if (errs || argc < 1)
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usage();
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ifname = argv[0];
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strncpy(ifr.ifr_name, ifname, sizeof ifr.ifr_name);
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/* use a random AF to create the socket */
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if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
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err(EX_UNAVAILABLE, "ifconfig: socket");
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argc--;
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argv++;
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spr.cmd = (int)SPPPIOGDEFS;
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ifr.ifr_data = (caddr_t)&spr;
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if (ioctl(s, SIOCGIFGENERIC, &ifr) == -1)
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err(EX_OSERR, "SIOCGIFGENERIC(SPPPIOGDEFS)");
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if (argc == 0) {
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/* list only mode */
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print_vals(ifname, &spr);
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return 0;
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}
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#define startswith(s) strncmp(argv[0], s, (off = strlen(s))) == 0
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while (argc > 0) {
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if (startswith("authproto=")) {
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cp = argv[0] + off;
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if (strcmp(cp, "pap") == 0)
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spr.defs.myauth.proto =
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spr.defs.hisauth.proto = PPP_PAP;
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else if (strcmp(cp, "chap") == 0)
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spr.defs.myauth.proto =
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spr.defs.hisauth.proto = PPP_CHAP;
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else if (strcmp(cp, "none") == 0)
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spr.defs.myauth.proto =
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spr.defs.hisauth.proto = 0;
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else
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errx(EX_DATAERR, "bad auth proto: %s", cp);
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} else if (startswith("myauthproto=")) {
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cp = argv[0] + off;
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if (strcmp(cp, "pap") == 0)
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spr.defs.myauth.proto = PPP_PAP;
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else if (strcmp(cp, "chap") == 0)
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spr.defs.myauth.proto = PPP_CHAP;
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else if (strcmp(cp, "none") == 0)
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spr.defs.myauth.proto = 0;
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else
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errx(EX_DATAERR, "bad auth proto: %s", cp);
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} else if (startswith("myauthname="))
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strncpy(spr.defs.myauth.name, argv[0] + off,
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AUTHNAMELEN);
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else if (startswith("myauthsecret=") ||
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startswith("myauthkey="))
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strncpy(spr.defs.myauth.secret, argv[0] + off,
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AUTHKEYLEN);
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else if (startswith("hisauthproto=")) {
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cp = argv[0] + off;
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if (strcmp(cp, "pap") == 0)
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spr.defs.hisauth.proto = PPP_PAP;
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else if (strcmp(cp, "chap") == 0)
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spr.defs.hisauth.proto = PPP_CHAP;
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else if (strcmp(cp, "none") == 0)
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spr.defs.hisauth.proto = 0;
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else
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errx(EX_DATAERR, "bad auth proto: %s", cp);
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} else if (startswith("hisauthname="))
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strncpy(spr.defs.hisauth.name, argv[0] + off,
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AUTHNAMELEN);
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else if (startswith("hisauthsecret=") ||
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startswith("hisauthkey="))
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strncpy(spr.defs.hisauth.secret, argv[0] + off,
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AUTHKEYLEN);
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else if (strcmp(argv[0], "callin") == 0)
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spr.defs.hisauth.flags |= AUTHFLAG_NOCALLOUT;
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else if (strcmp(argv[0], "always") == 0)
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spr.defs.hisauth.flags &= ~AUTHFLAG_NOCALLOUT;
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else if (strcmp(argv[0], "norechallenge") == 0)
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spr.defs.hisauth.flags |= AUTHFLAG_NORECHALLENGE;
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else if (strcmp(argv[0], "rechallenge") == 0)
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spr.defs.hisauth.flags &= ~AUTHFLAG_NORECHALLENGE;
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else if (startswith("lcp-timeout=")) {
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cp = argv[0] + off;
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to = strtol(cp, &endp, 10);
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if (*cp == '\0' || *endp != '\0' ||
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/*
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* NB: 10 ms is the minimal possible value for
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* hz=100. We assume no kernel has less clock
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* frequency than that...
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*/
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to < 10 || to > 20000)
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errx(EX_DATAERR, "bad lcp timeout value: %s",
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cp);
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spr.defs.lcp.timeout = to;
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} else if (strcmp(argv[0], "enable-vj") == 0)
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spr.defs.enable_vj = 1;
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else if (strcmp(argv[0], "disable-vj") == 0)
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spr.defs.enable_vj = 0;
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else if (strcmp(argv[0], "enable-ipv6") == 0)
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spr.defs.enable_ipv6 = 1;
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else if (strcmp(argv[0], "disable-ipv6") == 0)
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spr.defs.enable_ipv6 = 0;
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else
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errx(EX_DATAERR, "bad parameter: \"%s\"", argv[0]);
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argv++;
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argc--;
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}
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spr.cmd = (int)SPPPIOSDEFS;
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if (ioctl(s, SIOCSIFGENERIC, &ifr) == -1)
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err(EX_OSERR, "SIOCSIFGENERIC(SPPPIOSDEFS)");
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if (verbose)
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print_vals(ifname, &spr);
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return 0;
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}
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static void
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n",
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"usage: spppcontrol [-v] ifname [{my|his}auth{proto|name|secret}=...]",
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" spppcontrol [-v] ifname callin|always");
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exit(EX_USAGE);
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}
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void
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print_vals(const char *ifname, struct spppreq *sp)
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{
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printf("%s:\tphase=%s\n", ifname, phase_name(sp->defs.pp_phase));
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if (sp->defs.myauth.proto) {
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printf("\tmyauthproto=%s myauthname=\"%.*s\"\n",
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proto_name(sp->defs.myauth.proto),
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AUTHNAMELEN, sp->defs.myauth.name);
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}
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if (sp->defs.hisauth.proto) {
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printf("\thisauthproto=%s hisauthname=\"%.*s\"%s\n",
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proto_name(sp->defs.hisauth.proto),
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AUTHNAMELEN, sp->defs.hisauth.name,
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authflags(sp->defs.hisauth.flags));
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}
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printf("\tlcp-timeout=%d ms\n", sp->defs.lcp.timeout);
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printf("\t%sable-vj\n", sp->defs.enable_vj? "en": "dis");
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printf("\t%sable-ipv6\n", sp->defs.enable_ipv6? "en": "dis");
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}
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const char *
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phase_name(enum ppp_phase phase)
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{
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switch (phase) {
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case PHASE_DEAD: return "dead";
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case PHASE_ESTABLISH: return "establish";
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case PHASE_TERMINATE: return "terminate";
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case PHASE_AUTHENTICATE: return "authenticate";
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case PHASE_NETWORK: return "network";
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}
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return "illegal";
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}
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const char *
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proto_name(u_short proto)
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{
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static char buf[12];
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switch (proto) {
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case PPP_PAP: return "pap";
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case PPP_CHAP: return "chap";
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}
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sprintf(buf, "0x%x", (unsigned)proto);
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return buf;
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}
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const char *
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authflags(u_short flags)
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{
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static char buf[30];
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buf[0] = '\0';
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if (flags & AUTHFLAG_NOCALLOUT)
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strcat(buf, " callin");
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if (flags & AUTHFLAG_NORECHALLENGE)
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strcat(buf, " norechallenge");
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return buf;
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}
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