1 /* 2 * Copyright 2001 The Aerospace Corporation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AEROSPACE CORPORATION BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD: src/sbin/ifconfig/ifieee80211.c,v 1.1.2.3 2002/02/07 15:12:37 ambrisko Exp $ 26 * $DragonFly: src/sbin/ifconfig/ifieee80211.c,v 1.3 2003/09/28 14:39:18 hmp Exp $ 27 */ 28 29 /*- 30 * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc. 31 * All rights reserved. 32 * 33 * This code is derived from software contributed to The NetBSD Foundation 34 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 35 * NASA Ames Research Center. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the NetBSD 48 * Foundation, Inc. and its contributors. 49 * 4. Neither the name of The NetBSD Foundation nor the names of its 50 * contributors may be used to endorse or promote products derived 51 * from this software without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 54 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 55 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 56 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 57 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 58 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 59 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 60 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 61 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 62 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 63 * POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 #include <sys/param.h> 67 #include <sys/ioctl.h> 68 #include <sys/socket.h> 69 #include <sys/sysctl.h> 70 #include <sys/time.h> 71 72 #include <net/ethernet.h> 73 #include <net/if.h> 74 #include <net/if_dl.h> 75 #include <net/if_types.h> 76 #include <net/route.h> 77 #include <net/if_ieee80211.h> 78 79 #include <ctype.h> 80 #include <err.h> 81 #include <errno.h> 82 #include <fcntl.h> 83 #include <stdio.h> 84 #include <stdlib.h> 85 #include <string.h> 86 #include <unistd.h> 87 88 #include "ifconfig.h" 89 90 static void set80211(int s, int type, int val, int len, u_int8_t *data); 91 static const char *get_string(const char *val, const char *sep, 92 u_int8_t *buf, int *lenp); 93 static void print_string(const u_int8_t *buf, int len); 94 95 void 96 set80211ssid(const char *val, int d, int s, const struct afswtch *rafp) 97 { 98 int ssid; 99 int len; 100 u_int8_t data[33]; 101 102 ssid = 0; 103 len = sizeof(val); 104 if (len > 2 && isdigit(val[0]) && val[1] == ':') { 105 ssid = atoi(val)-1; 106 val += 2; 107 } 108 109 bzero(data, sizeof(data)); 110 len = sizeof(data); 111 get_string(val, NULL, data, &len); 112 113 set80211(s, IEEE80211_IOC_SSID, ssid, len, data); 114 } 115 116 void 117 set80211stationname(const char *val, int d, int s, const struct afswtch *rafp) 118 { 119 int len; 120 u_int8_t data[33]; 121 122 bzero(data, sizeof(data)); 123 len = sizeof(data); 124 get_string(val, NULL, data, &len); 125 126 set80211(s, IEEE80211_IOC_STATIONNAME, 0, len, data); 127 } 128 129 void 130 set80211channel(const char *val, int d, int s, const struct afswtch *rafp) 131 { 132 set80211(s, IEEE80211_IOC_CHANNEL, atoi(val), 0, NULL); 133 } 134 135 void 136 set80211authmode(const char *val, int d, int s, const struct afswtch *rafp) 137 { 138 int mode; 139 140 if(strcasecmp(val, "none") == 0) { 141 mode = IEEE80211_AUTH_NONE; 142 } else if(strcasecmp(val, "open") == 0) { 143 mode = IEEE80211_AUTH_OPEN; 144 } else if(strcasecmp(val, "shared") == 0) { 145 mode = IEEE80211_AUTH_SHARED; 146 } else { 147 err(1, "unknown authmode"); 148 } 149 150 set80211(s, IEEE80211_IOC_AUTHMODE, mode, 0, NULL); 151 } 152 153 void 154 set80211powersavemode(const char *val, int d, int s, const struct afswtch *rafp) 155 { 156 int mode; 157 158 if(strcasecmp(val, "off") == 0) { 159 mode = IEEE80211_POWERSAVE_OFF; 160 } else if(strcasecmp(val, "on") == 0) { 161 mode = IEEE80211_POWERSAVE_ON; 162 } else if(strcasecmp(val, "cam") == 0) { 163 mode = IEEE80211_POWERSAVE_CAM; 164 } else if(strcasecmp(val, "psp") == 0) { 165 mode = IEEE80211_POWERSAVE_PSP; 166 } else if(strcasecmp(val, "psp-cam") == 0) { 167 mode = IEEE80211_POWERSAVE_PSP_CAM; 168 } else { 169 err(1, "unknown powersavemode"); 170 } 171 172 set80211(s, IEEE80211_IOC_POWERSAVE, mode, 0, NULL); 173 } 174 175 void 176 set80211powersave(const char *val, int d, int s, const struct afswtch *rafp) 177 { 178 if (d == 0) 179 set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_OFF, 180 0, NULL); 181 else 182 set80211(s, IEEE80211_IOC_POWERSAVE, IEEE80211_POWERSAVE_ON, 183 0, NULL); 184 } 185 186 void 187 set80211powersavesleep(const char *val, int d, int s, const struct afswtch *rafp) 188 { 189 set80211(s, IEEE80211_IOC_POWERSAVESLEEP, atoi(val), 0, NULL); 190 } 191 192 void 193 set80211wepmode(const char *val, int d, int s, const struct afswtch *rafp) 194 { 195 int mode; 196 197 if(strcasecmp(val, "off") == 0) { 198 mode = IEEE80211_WEP_OFF; 199 } else if(strcasecmp(val, "on") == 0) { 200 mode = IEEE80211_WEP_ON; 201 } else if(strcasecmp(val, "mixed") == 0) { 202 mode = IEEE80211_WEP_MIXED; 203 } else { 204 err(1, "unknown wep mode"); 205 } 206 207 set80211(s, IEEE80211_IOC_WEP, mode, 0, NULL); 208 } 209 210 void 211 set80211wep(const char *val, int d, int s, const struct afswtch *rafp) 212 { 213 set80211(s, IEEE80211_IOC_WEP, d, 0, NULL); 214 } 215 216 void 217 set80211weptxkey(const char *val, int d, int s, const struct afswtch *rafp) 218 { 219 set80211(s, IEEE80211_IOC_WEPTXKEY, atoi(val)-1, 0, NULL); 220 } 221 222 void 223 set80211wepkey(const char *val, int d, int s, const struct afswtch *rafp) 224 { 225 int key = 0; 226 int len; 227 u_int8_t data[14]; 228 229 if(isdigit(val[0]) && val[1] == ':') { 230 key = atoi(val)-1; 231 val += 2; 232 } 233 234 bzero(data, sizeof(data)); 235 len = sizeof(data); 236 get_string(val, NULL, data, &len); 237 238 set80211(s, IEEE80211_IOC_WEPKEY, key, len, data); 239 } 240 241 /* 242 * This function is purly a NetBSD compatability interface. The NetBSD 243 * iterface is too inflexable, but it's there so we'll support it since 244 * it's not all that hard. 245 */ 246 void 247 set80211nwkey(const char *val, int d, int s, const struct afswtch *rafp) 248 { 249 int txkey; 250 int i, len; 251 u_int8_t data[14]; 252 253 set80211(s, IEEE80211_IOC_WEP, IEEE80211_WEP_ON, 0, NULL); 254 255 if(isdigit(val[0]) && val[1] == ':') { 256 txkey = val[0]-'0'-1; 257 val += 2; 258 259 for(i = 0; i < 4; i++) { 260 bzero(data, sizeof(data)); 261 len = sizeof(data); 262 val = get_string(val, ",", data, &len); 263 264 set80211(s, IEEE80211_IOC_WEPKEY, i, len, data); 265 } 266 } else { 267 bzero(data, sizeof(data)); 268 len = sizeof(data); 269 get_string(val, NULL, data, &len); 270 txkey = 0; 271 272 set80211(s, IEEE80211_IOC_WEPKEY, 0, len, data); 273 274 bzero(data, sizeof(data)); 275 for(i = 1; i < 4; i++) 276 set80211(s, IEEE80211_IOC_WEPKEY, i, 0, data); 277 } 278 279 set80211(s, IEEE80211_IOC_WEPTXKEY, txkey, 0, NULL); 280 } 281 282 void 283 ieee80211_status (int s, struct rt_addrinfo *info __unused) 284 { 285 int i; 286 int num; 287 struct ieee80211req ireq; 288 u_int8_t data[32]; 289 char spacer; 290 291 (void) memset(&ireq, 0, sizeof(ireq)); 292 (void) strncpy(ireq.i_name, name, sizeof(ireq.i_name)); 293 ireq.i_data = &data; 294 295 ireq.i_type = IEEE80211_IOC_SSID; 296 ireq.i_val = -1; 297 if (ioctl(s, SIOCG80211, &ireq) < 0) { 298 /* If we can't get the SSID, the this isn't an 802.11 device. */ 299 return; 300 } 301 printf("\tssid "); 302 print_string(data, ireq.i_len); 303 num = 0; 304 ireq.i_type = IEEE80211_IOC_NUMSSIDS; 305 if (ioctl(s, SIOCG80211, &ireq) >= 0) { 306 num = ireq.i_val; 307 } 308 ireq.i_type = IEEE80211_IOC_SSID; 309 for (ireq.i_val = 0; ireq.i_val < num; ireq.i_val++) { 310 if (ioctl(s, SIOCG80211, &ireq) >= 0 && ireq.i_len > 0) { 311 printf(" %d:", ireq.i_val + 1); 312 print_string(data, ireq.i_len); 313 } 314 } 315 printf("\n"); 316 317 ireq.i_type = IEEE80211_IOC_STATIONNAME; 318 if (ioctl(s, SIOCG80211, &ireq) != -1) { 319 printf("\tstationname "); 320 print_string(data, ireq.i_len); 321 printf("\n"); 322 } 323 324 ireq.i_type = IEEE80211_IOC_CHANNEL; 325 if (ioctl(s, SIOCG80211, &ireq) < 0) { 326 goto end; 327 } 328 printf("\tchannel %d", ireq.i_val); 329 330 ireq.i_type = IEEE80211_IOC_AUTHMODE; 331 if (ioctl(s, SIOCG80211, &ireq) != -1) { 332 printf(" authmode"); 333 switch (ireq.i_val) { 334 case IEEE80211_AUTH_NONE: 335 printf(" NONE"); 336 break; 337 case IEEE80211_AUTH_OPEN: 338 printf(" OPEN"); 339 break; 340 case IEEE80211_AUTH_SHARED: 341 printf(" SHARED"); 342 break; 343 default: 344 printf(" UNKNOWN"); 345 break; 346 } 347 } 348 349 ireq.i_type = IEEE80211_IOC_POWERSAVE; 350 if (ioctl(s, SIOCG80211, &ireq) != -1 && 351 ireq.i_val != IEEE80211_POWERSAVE_NOSUP ) { 352 printf(" powersavemode"); 353 switch (ireq.i_val) { 354 case IEEE80211_POWERSAVE_OFF: 355 printf(" OFF"); 356 break; 357 case IEEE80211_POWERSAVE_CAM: 358 printf(" CAM"); 359 break; 360 case IEEE80211_POWERSAVE_PSP: 361 printf(" PSP"); 362 break; 363 case IEEE80211_POWERSAVE_PSP_CAM: 364 printf(" PSP-CAM"); 365 break; 366 } 367 368 ireq.i_type = IEEE80211_IOC_POWERSAVESLEEP; 369 if (ioctl(s, SIOCG80211, &ireq) != -1) { 370 if(ireq.i_val) 371 printf(" powersavesleep %d", ireq.i_val); 372 } 373 } 374 375 printf("\n"); 376 377 ireq.i_type = IEEE80211_IOC_WEP; 378 if (ioctl(s, SIOCG80211, &ireq) != -1 && 379 ireq.i_val != IEEE80211_WEP_NOSUP) { 380 printf("\twepmode"); 381 switch (ireq.i_val) { 382 case IEEE80211_WEP_OFF: 383 printf(" OFF"); 384 break; 385 case IEEE80211_WEP_ON: 386 printf(" ON"); 387 break; 388 case IEEE80211_WEP_MIXED: 389 printf(" MIXED"); 390 break; 391 default: 392 printf(" UNKNOWN"); 393 break; 394 } 395 396 /* 397 * If we get here then we've got WEP support so we need 398 * to print WEP status. 399 */ 400 401 ireq.i_type = IEEE80211_IOC_WEPTXKEY; 402 if (ioctl(s, SIOCG80211, &ireq) < 0) { 403 warn("WEP support, but no tx key!"); 404 goto end; 405 } 406 printf(" weptxkey %d", ireq.i_val+1); 407 408 ireq.i_type = IEEE80211_IOC_NUMWEPKEYS; 409 if (ioctl(s, SIOCG80211, &ireq) < 0) { 410 warn("WEP support, but no NUMWEPKEYS support!"); 411 goto end; 412 } 413 num = ireq.i_val; 414 415 printf("\n"); 416 417 ireq.i_type = IEEE80211_IOC_WEPKEY; 418 spacer = '\t'; 419 for(i = 0; i < num; i++) { 420 ireq.i_val = i; 421 if (ioctl(s, SIOCG80211, &ireq) < 0) { 422 warn("WEP support, but can get keys!"); 423 goto end; 424 } 425 if(ireq.i_len == 0 || ireq.i_len > 13) 426 continue; 427 printf("%cwepkey %d:%s", spacer, i+1, 428 ireq.i_len <= 5 ? "64-bit" : "128-bit"); 429 if(spacer == '\t') 430 spacer = ' '; 431 } 432 if (spacer == ' ') 433 printf("\n"); 434 } 435 436 end: 437 return; 438 } 439 440 static void 441 set80211(int s, int type, int val, int len, u_int8_t *data) 442 { 443 struct ieee80211req ireq; 444 445 (void) memset(&ireq, 0, sizeof(ireq)); 446 (void) strncpy(ireq.i_name, name, sizeof(ireq.i_name)); 447 ireq.i_type = type; 448 ireq.i_val = val; 449 ireq.i_len = len; 450 ireq.i_data = data; 451 if(ioctl(s, SIOCS80211, &ireq) < 0) 452 err(1, "SIOCS80211"); 453 } 454 455 static const char * 456 get_string(const char *val, const char *sep, u_int8_t *buf, int *lenp) 457 { 458 int len; 459 int hexstr; 460 u_int8_t *p; 461 462 len = *lenp; 463 p = buf; 464 hexstr = (val[0] == '0' && tolower((u_char)val[1]) == 'x'); 465 if (hexstr) 466 val += 2; 467 for (;;) { 468 if (*val == '\0') 469 break; 470 if (sep != NULL && strchr(sep, *val) != NULL) { 471 val++; 472 break; 473 } 474 if (hexstr) { 475 if (!isxdigit((u_char)val[0]) || 476 !isxdigit((u_char)val[1])) { 477 warnx("bad hexadecimal digits"); 478 return NULL; 479 } 480 } 481 if (p > buf + len) { 482 if (hexstr) 483 warnx("hexadecimal digits too long"); 484 else 485 warnx("strings too long"); 486 return NULL; 487 } 488 if (hexstr) { 489 #define tohex(x) (isdigit(x) ? (x) - '0' : tolower(x) - 'a' + 10) 490 *p++ = (tohex((u_char)val[0]) << 4) | 491 tohex((u_char)val[1]); 492 #undef tohex 493 val += 2; 494 } else 495 *p++ = *val++; 496 } 497 len = p - buf; 498 /* The string "-" is treated as the empty string. */ 499 if (!hexstr && len == 1 && buf[0] == '-') 500 len = 0; 501 if (len < *lenp) 502 memset(p, 0, *lenp - len); 503 *lenp = len; 504 return val; 505 } 506 507 static void 508 print_string(const u_int8_t *buf, int len) 509 { 510 int i; 511 int hasspc; 512 513 i = 0; 514 hasspc = 0; 515 for(; i < len; i++) { 516 if (!isprint(buf[i]) && buf[i] != '\0') 517 break; 518 if (isspace(buf[i])) 519 hasspc++; 520 } 521 if (i == len) { 522 if (hasspc || len == 0 || buf[0] == '\0') 523 printf("\"%.*s\"", len, buf); 524 else 525 printf("%.*s", len, buf); 526 } else { 527 printf("0x"); 528 for (i = 0; i < len; i++) 529 printf("%02x", buf[i]); 530 } 531 } 532 533