1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
267 lines
7.3 KiB
C
267 lines
7.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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 = (uintptr_t) 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 = (uintptr_t)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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