spppcontrol.c revision 30303
1/* 2 * Copyright (c) 1997 Joerg Wunsch 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $Id$ 27 */ 28 29#include <sys/param.h> 30#include <sys/callout.h> 31#include <sys/ioctl.h> 32#include <sys/socket.h> 33#include <sys/time.h> 34 35#include <net/if.h> 36#include <net/if_var.h> 37#include <net/if_sppp.h> 38 39#include <err.h> 40#include <errno.h> 41#include <fcntl.h> 42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45#include <sysexits.h> 46#include <unistd.h> 47 48void usage(void); 49void print_vals(const char *ifname, struct spppreq *sp); 50const char *phase_name(enum ppp_phase phase); 51const char *proto_name(u_short proto); 52const char *authflags(u_short flags); 53 54#define PPP_PAP 0xc023 55#define PPP_CHAP 0xc223 56 57int 58main(int argc, char **argv) 59{ 60 int s, c; 61 int errs = 0, verbose = 0; 62 size_t off; 63 const char *ifname, *cp; 64 struct ifreq ifr; 65 struct spppreq spr; 66 67 while ((c = getopt(argc, argv, "v")) != -1) 68 switch (c) { 69 case 'v': 70 verbose++; 71 break; 72 73 default: 74 errs++; 75 break; 76 } 77 argv += optind; 78 argc -= optind; 79 80 if (errs || argc < 1) 81 usage(); 82 83 ifname = argv[0]; 84 strncpy(ifr.ifr_name, ifname, sizeof ifr.ifr_name); 85 86 /* use a random AF to create the socket */ 87 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) 88 err(EX_UNAVAILABLE, "ifconfig: socket"); 89 90 argc--; 91 argv++; 92 93 spr.cmd = (int)SPPPIOGDEFS; 94 ifr.ifr_data = (caddr_t)&spr; 95 96 if (ioctl(s, SIOCGIFGENERIC, &ifr) == -1) 97 err(EX_OSERR, "SIOCGIFGENERIC(SPPPIOGDEFS)"); 98 99 if (argc == 0) { 100 /* list only mode */ 101 print_vals(ifname, &spr); 102 return 0; 103 } 104 105#define startswith(s) strncmp(argv[0], s, (off = strlen(s))) == 0 106 107 while (argc > 0) { 108 if (startswith("authproto=")) { 109 cp = argv[0] + off; 110 if (strcmp(cp, "pap") == 0) 111 spr.defs.myauth.proto = 112 spr.defs.hisauth.proto = PPP_PAP; 113 else if (strcmp(cp, "chap") == 0) 114 spr.defs.myauth.proto = 115 spr.defs.hisauth.proto = PPP_CHAP; 116 else if (strcmp(cp, "none") == 0) 117 spr.defs.myauth.proto = 118 spr.defs.hisauth.proto = 0; 119 else 120 errx(EX_DATAERR, "bad auth proto: %s", cp); 121 } else if (startswith("myauthproto=")) { 122 cp = argv[0] + off; 123 if (strcmp(cp, "pap") == 0) 124 spr.defs.myauth.proto = PPP_PAP; 125 else if (strcmp(cp, "chap") == 0) 126 spr.defs.myauth.proto = PPP_CHAP; 127 else if (strcmp(cp, "none") == 0) 128 spr.defs.myauth.proto = 0; 129 else 130 errx(EX_DATAERR, "bad auth proto: %s", cp); 131 } else if (startswith("myauthname=")) 132 strncpy(spr.defs.myauth.name, argv[0] + off, 133 AUTHNAMELEN); 134 else if (startswith("myauthsecret=") || 135 startswith("myauthkey=")) 136 strncpy(spr.defs.myauth.secret, argv[0] + off, 137 AUTHKEYLEN); 138 else if (startswith("hisauthproto=")) { 139 cp = argv[0] + off; 140 if (strcmp(cp, "pap") == 0) 141 spr.defs.hisauth.proto = PPP_PAP; 142 else if (strcmp(cp, "chap") == 0) 143 spr.defs.hisauth.proto = PPP_CHAP; 144 else if (strcmp(cp, "none") == 0) 145 spr.defs.hisauth.proto = 0; 146 else 147 errx(EX_DATAERR, "bad auth proto: %s", cp); 148 } else if (startswith("hisauthname=")) 149 strncpy(spr.defs.hisauth.name, argv[0] + off, 150 AUTHNAMELEN); 151 else if (startswith("hisauthsecret=") || 152 startswith("hisauthkey=")) 153 strncpy(spr.defs.hisauth.secret, argv[0] + off, 154 AUTHKEYLEN); 155 else if (strcmp(argv[0], "callin") == 0) 156 spr.defs.hisauth.flags |= AUTHFLAG_NOCALLOUT; 157 else if (strcmp(argv[0], "always") == 0) 158 spr.defs.hisauth.flags &= ~AUTHFLAG_NOCALLOUT; 159 else if (strcmp(argv[0], "norechallenge") == 0) 160 spr.defs.hisauth.flags |= AUTHFLAG_NORECHALLENGE; 161 else if (strcmp(argv[0], "rechallenge") == 0) 162 spr.defs.hisauth.flags &= ~AUTHFLAG_NORECHALLENGE; 163 else 164 errx(EX_DATAERR, "bad parameter: \"%s\"", argv[0]); 165 166 argv++; 167 argc--; 168 } 169 170 spr.cmd = (int)SPPPIOSDEFS; 171 172 if (ioctl(s, SIOCSIFGENERIC, &ifr) == -1) 173 err(EX_OSERR, "SIOCSIFGENERIC(SPPPIOSDEFS)"); 174 175 if (verbose) 176 print_vals(ifname, &spr); 177 178 return 0; 179} 180 181void 182usage(void) 183{ 184 errx(EX_USAGE, 185 "usage: [-v] ifname [{my|his}auth{proto|name|secret}=..." 186 "|callin|always]"); 187} 188 189void 190print_vals(const char *ifname, struct spppreq *sp) 191{ 192 printf("%s:\tphase=%s\n", ifname, phase_name(sp->defs.pp_phase)); 193 if (sp->defs.myauth.proto) { 194 printf("\tmyauthproto=%s myauthname=\"%.*s\"\n", 195 proto_name(sp->defs.myauth.proto), 196 AUTHNAMELEN, sp->defs.myauth.name); 197 } 198 if (sp->defs.hisauth.proto) { 199 printf("\thisauthproto=%s hisauthname=\"%.*s\"%s\n", 200 proto_name(sp->defs.hisauth.proto), 201 AUTHNAMELEN, sp->defs.hisauth.name, 202 authflags(sp->defs.hisauth.flags)); 203 } 204} 205 206const char * 207phase_name(enum ppp_phase phase) 208{ 209 switch (phase) { 210 case PHASE_DEAD: return "dead"; 211 case PHASE_ESTABLISH: return "establish"; 212 case PHASE_TERMINATE: return "terminate"; 213 case PHASE_AUTHENTICATE: return "authenticate"; 214 case PHASE_NETWORK: return "network"; 215 } 216 return "illegal"; 217} 218 219const char * 220proto_name(u_short proto) 221{ 222 static char buf[12]; 223 switch (proto) { 224 case PPP_PAP: return "pap"; 225 case PPP_CHAP: return "chap"; 226 } 227 sprintf(buf, "0x%x", (unsigned)proto); 228 return buf; 229} 230 231const char * 232authflags(u_short flags) 233{ 234 static char buf[10]; 235 buf[0] = '\0'; 236 if (flags & AUTHFLAG_NOCALLOUT) 237 strcat(buf, " callin"); 238 if (flags & AUTHFLAG_NORECHALLENGE) 239 strcat(buf, " norechallenge"); 240 return buf; 241} 242