spppcontrol.c revision 88536
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 27#ifndef lint 28static const char rcsid[] = 29 "$FreeBSD: head/sbin/spppcontrol/spppcontrol.c 88536 2001-12-27 16:52:23Z joerg $"; 30#endif /* not lint */ 31 32#include <sys/param.h> 33#include <sys/callout.h> 34#include <sys/ioctl.h> 35#include <sys/mbuf.h> 36#include <sys/socket.h> 37 38#include <net/if.h> 39#include <net/if_var.h> 40#include <netinet/in.h> 41#include <netinet/in_systm.h> 42#include <netinet/ip.h> 43#include <net/slcompress.h> 44#include <net/if_sppp.h> 45 46#include <err.h> 47#include <stdio.h> 48#include <stdlib.h> 49#include <string.h> 50#include <sysexits.h> 51#include <unistd.h> 52 53static void usage(void); 54void print_vals(const char *ifname, struct spppreq *sp); 55const char *phase_name(enum ppp_phase phase); 56const char *proto_name(u_short proto); 57const char *authflags(u_short flags); 58 59#define PPP_PAP 0xc023 60#define PPP_CHAP 0xc223 61 62int 63main(int argc, char **argv) 64{ 65 int s, c; 66 int errs = 0, verbose = 0; 67 size_t off; 68 const char *ifname, *cp; 69 struct ifreq ifr; 70 struct spppreq spr; 71 72 while ((c = getopt(argc, argv, "v")) != -1) 73 switch (c) { 74 case 'v': 75 verbose++; 76 break; 77 78 default: 79 errs++; 80 break; 81 } 82 argv += optind; 83 argc -= optind; 84 85 if (errs || argc < 1) 86 usage(); 87 88 ifname = argv[0]; 89 strncpy(ifr.ifr_name, ifname, sizeof ifr.ifr_name); 90 91 /* use a random AF to create the socket */ 92 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) 93 err(EX_UNAVAILABLE, "ifconfig: socket"); 94 95 argc--; 96 argv++; 97 98 spr.cmd = (int)SPPPIOGDEFS; 99 ifr.ifr_data = (caddr_t)&spr; 100 101 if (ioctl(s, SIOCGIFGENERIC, &ifr) == -1) 102 err(EX_OSERR, "SIOCGIFGENERIC(SPPPIOGDEFS)"); 103 104 if (argc == 0) { 105 /* list only mode */ 106 print_vals(ifname, &spr); 107 return 0; 108 } 109 110#define startswith(s) strncmp(argv[0], s, (off = strlen(s))) == 0 111 112 while (argc > 0) { 113 if (startswith("authproto=")) { 114 cp = argv[0] + off; 115 if (strcmp(cp, "pap") == 0) 116 spr.defs.myauth.proto = 117 spr.defs.hisauth.proto = PPP_PAP; 118 else if (strcmp(cp, "chap") == 0) 119 spr.defs.myauth.proto = 120 spr.defs.hisauth.proto = PPP_CHAP; 121 else if (strcmp(cp, "none") == 0) 122 spr.defs.myauth.proto = 123 spr.defs.hisauth.proto = 0; 124 else 125 errx(EX_DATAERR, "bad auth proto: %s", cp); 126 } else if (startswith("myauthproto=")) { 127 cp = argv[0] + off; 128 if (strcmp(cp, "pap") == 0) 129 spr.defs.myauth.proto = PPP_PAP; 130 else if (strcmp(cp, "chap") == 0) 131 spr.defs.myauth.proto = PPP_CHAP; 132 else if (strcmp(cp, "none") == 0) 133 spr.defs.myauth.proto = 0; 134 else 135 errx(EX_DATAERR, "bad auth proto: %s", cp); 136 } else if (startswith("myauthname=")) 137 strncpy(spr.defs.myauth.name, argv[0] + off, 138 AUTHNAMELEN); 139 else if (startswith("myauthsecret=") || 140 startswith("myauthkey=")) 141 strncpy(spr.defs.myauth.secret, argv[0] + off, 142 AUTHKEYLEN); 143 else if (startswith("hisauthproto=")) { 144 cp = argv[0] + off; 145 if (strcmp(cp, "pap") == 0) 146 spr.defs.hisauth.proto = PPP_PAP; 147 else if (strcmp(cp, "chap") == 0) 148 spr.defs.hisauth.proto = PPP_CHAP; 149 else if (strcmp(cp, "none") == 0) 150 spr.defs.hisauth.proto = 0; 151 else 152 errx(EX_DATAERR, "bad auth proto: %s", cp); 153 } else if (startswith("hisauthname=")) 154 strncpy(spr.defs.hisauth.name, argv[0] + off, 155 AUTHNAMELEN); 156 else if (startswith("hisauthsecret=") || 157 startswith("hisauthkey=")) 158 strncpy(spr.defs.hisauth.secret, argv[0] + off, 159 AUTHKEYLEN); 160 else if (strcmp(argv[0], "callin") == 0) 161 spr.defs.hisauth.flags |= AUTHFLAG_NOCALLOUT; 162 else if (strcmp(argv[0], "always") == 0) 163 spr.defs.hisauth.flags &= ~AUTHFLAG_NOCALLOUT; 164 else if (strcmp(argv[0], "norechallenge") == 0) 165 spr.defs.hisauth.flags |= AUTHFLAG_NORECHALLENGE; 166 else if (strcmp(argv[0], "rechallenge") == 0) 167 spr.defs.hisauth.flags &= ~AUTHFLAG_NORECHALLENGE; 168 else if (strcmp(argv[0], "enable-vj") == 0) 169 spr.defs.enable_vj = 1; 170 else if (strcmp(argv[0], "disable-vj") == 0) 171 spr.defs.enable_vj = 0; 172 else 173 errx(EX_DATAERR, "bad parameter: \"%s\"", argv[0]); 174 175 argv++; 176 argc--; 177 } 178 179 spr.cmd = (int)SPPPIOSDEFS; 180 181 if (ioctl(s, SIOCSIFGENERIC, &ifr) == -1) 182 err(EX_OSERR, "SIOCSIFGENERIC(SPPPIOSDEFS)"); 183 184 if (verbose) 185 print_vals(ifname, &spr); 186 187 return 0; 188} 189 190static void 191usage(void) 192{ 193 fprintf(stderr, "%s\n%s\n", 194 "usage: spppcontrol [-v] ifname [{my|his}auth{proto|name|secret}=...]", 195 " spppcontrol [-v] ifname callin|always"); 196 exit(EX_USAGE); 197} 198 199void 200print_vals(const char *ifname, struct spppreq *sp) 201{ 202 printf("%s:\tphase=%s\n", ifname, phase_name(sp->defs.pp_phase)); 203 if (sp->defs.myauth.proto) { 204 printf("\tmyauthproto=%s myauthname=\"%.*s\"\n", 205 proto_name(sp->defs.myauth.proto), 206 AUTHNAMELEN, sp->defs.myauth.name); 207 } 208 if (sp->defs.hisauth.proto) { 209 printf("\thisauthproto=%s hisauthname=\"%.*s\"%s\n", 210 proto_name(sp->defs.hisauth.proto), 211 AUTHNAMELEN, sp->defs.hisauth.name, 212 authflags(sp->defs.hisauth.flags)); 213 } 214 printf("\t%sable-vj\n", sp->defs.enable_vj? "en": "dis"); 215} 216 217const char * 218phase_name(enum ppp_phase phase) 219{ 220 switch (phase) { 221 case PHASE_DEAD: return "dead"; 222 case PHASE_ESTABLISH: return "establish"; 223 case PHASE_TERMINATE: return "terminate"; 224 case PHASE_AUTHENTICATE: return "authenticate"; 225 case PHASE_NETWORK: return "network"; 226 } 227 return "illegal"; 228} 229 230const char * 231proto_name(u_short proto) 232{ 233 static char buf[12]; 234 switch (proto) { 235 case PPP_PAP: return "pap"; 236 case PPP_CHAP: return "chap"; 237 } 238 sprintf(buf, "0x%x", (unsigned)proto); 239 return buf; 240} 241 242const char * 243authflags(u_short flags) 244{ 245 static char buf[30]; 246 buf[0] = '\0'; 247 if (flags & AUTHFLAG_NOCALLOUT) 248 strcat(buf, " callin"); 249 if (flags & AUTHFLAG_NORECHALLENGE) 250 strcat(buf, " norechallenge"); 251 return buf; 252} 253