ifconfig.c revision 1.203
1 /* $NetBSD: ifconfig.c,v 1.203 2008/05/11 22:07:23 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1983, 1993 35 * The Regents of the University of California. All rights reserved. 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. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 */ 61 62 #include <sys/cdefs.h> 63 #ifndef lint 64 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\ 65 The Regents of the University of California. All rights reserved.\n"); 66 #endif /* not lint */ 67 68 #ifndef lint 69 #if 0 70 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94"; 71 #else 72 __RCSID("$NetBSD: ifconfig.c,v 1.203 2008/05/11 22:07:23 dyoung Exp $"); 73 #endif 74 #endif /* not lint */ 75 76 #include <sys/param.h> 77 #include <sys/socket.h> 78 #include <sys/ioctl.h> 79 80 #include <net/if.h> 81 #include <net/if_dl.h> 82 #include <net/if_media.h> 83 #include <net/if_ether.h> 84 #include <netinet/in.h> /* XXX */ 85 #include <netinet/in_var.h> /* XXX */ 86 87 #include <netdb.h> 88 89 #include <sys/protosw.h> 90 91 #include <assert.h> 92 #include <ctype.h> 93 #include <err.h> 94 #include <errno.h> 95 #include <stdbool.h> 96 #include <stddef.h> 97 #include <stdio.h> 98 #include <stdlib.h> 99 #include <string.h> 100 #include <unistd.h> 101 #include <ifaddrs.h> 102 #include <util.h> 103 104 #include "extern.h" 105 106 #ifndef INET_ONLY 107 #include "af_atalk.h" 108 #include "af_iso.h" 109 #endif /* ! INET_ONLY */ 110 #include "af_inet.h" 111 #ifdef INET6 112 #include "af_inet6.h" 113 #endif /* INET6 */ 114 115 #include "agr.h" 116 #include "carp.h" 117 #include "ieee80211.h" 118 #include "tunnel.h" 119 #include "vlan.h" 120 #include "parse.h" 121 #include "env.h" 122 123 int setaddr, doalias; 124 int clearaddr; 125 int newaddr = -1; 126 int check_up_state = -1; 127 int bflag, dflag, hflag, lflag, mflag, sflag, uflag, vflag, zflag; 128 #ifdef INET6 129 int Lflag; 130 #endif 131 132 /* 133 * Media stuff. Whenever a media command is first performed, the 134 * currently select media is grabbed for this interface. If `media' 135 * is given, the current media word is modifed. `mediaopt' commands 136 * only modify the set and clear words. They then operate on the 137 * current media word later. 138 */ 139 int media_current; 140 int mediaopt_set; 141 int mediaopt_clear; 142 143 void check_ifflags_up(prop_dictionary_t); 144 145 int notealias(prop_dictionary_t, prop_dictionary_t); 146 int notrailers(prop_dictionary_t, prop_dictionary_t); 147 int setifaddr(prop_dictionary_t, prop_dictionary_t); 148 int setifdstormask(prop_dictionary_t, prop_dictionary_t); 149 int setifflags(prop_dictionary_t, prop_dictionary_t); 150 static int setifcaps(prop_dictionary_t, prop_dictionary_t); 151 int setifbroadaddr(prop_dictionary_t, prop_dictionary_t); 152 static int setifmetric(prop_dictionary_t, prop_dictionary_t); 153 static int setifmtu(prop_dictionary_t, prop_dictionary_t); 154 int setifnetmask(prop_dictionary_t, prop_dictionary_t); 155 int setifprefixlen(prop_dictionary_t, prop_dictionary_t); 156 int setmedia(prop_dictionary_t, prop_dictionary_t); 157 int setmediamode(prop_dictionary_t, prop_dictionary_t); 158 int setmediaopt(prop_dictionary_t, prop_dictionary_t); 159 int unsetmediaopt(prop_dictionary_t, prop_dictionary_t); 160 int setmediainst(prop_dictionary_t, prop_dictionary_t); 161 static int clone_command(prop_dictionary_t, prop_dictionary_t); 162 static void do_setifpreference(prop_dictionary_t); 163 164 static int no_cmds_exec(prop_dictionary_t, prop_dictionary_t); 165 static int media_status_exec(prop_dictionary_t, prop_dictionary_t); 166 167 int carrier(prop_dictionary_t); 168 void printall(const char *, prop_dictionary_t); 169 int list_cloners(prop_dictionary_t, prop_dictionary_t); 170 void status(const struct sockaddr_dl *, prop_dictionary_t, 171 prop_dictionary_t); 172 void usage(void); 173 174 void print_media_word(int, const char *); 175 void process_media_commands(prop_dictionary_t); 176 void init_current_media(prop_dictionary_t, prop_dictionary_t); 177 178 /* Known address families */ 179 static const struct afswtch afs[] = { 180 {.af_name = "inet", .af_af = AF_INET, .af_status = in_status, 181 .af_addr_commit = in_commit_address} 182 183 #ifdef INET6 184 , {.af_name = "inet6", .af_af = AF_INET6, .af_status = in6_status, 185 .af_addr_commit = in6_commit_address 186 } 187 #endif 188 189 #ifndef INET_ONLY /* small version, for boot media */ 190 , {.af_name = "atalk", .af_af = AF_APPLETALK, .af_status = at_status, 191 .af_getaddr = at_getaddr, NULL, .af_difaddr = SIOCDIFADDR, 192 .af_aifaddr = SIOCAIFADDR, .af_gifaddr = SIOCGIFADDR, 193 .af_ridreq = &at_addreq, .af_addreq = &at_addreq} 194 , {.af_name = "iso", .af_af = AF_ISO, .af_status = iso_status, 195 .af_getaddr = iso_getaddr, NULL, .af_difaddr = SIOCDIFADDR_ISO, 196 .af_aifaddr = SIOCAIFADDR_ISO, .af_gifaddr = SIOCGIFADDR_ISO, 197 .af_ridreq = &iso_ridreq, .af_addreq = &iso_addreq} 198 #endif /* INET_ONLY */ 199 200 , {.af_name = NULL} /* sentinel */ 201 }; 202 203 static const struct kwinst ifflagskw[] = { 204 IFKW("arp", IFF_NOARP) 205 , IFKW("debug", IFF_DEBUG) 206 , IFKW("link0", IFF_LINK0) 207 , IFKW("link1", IFF_LINK1) 208 , IFKW("link2", IFF_LINK2) 209 , {.k_word = "down", .k_type = KW_T_NUM, .k_num = -IFF_UP} 210 , {.k_word = "up", .k_type = KW_T_NUM, .k_num = IFF_UP} 211 }; 212 213 static const struct kwinst ifcapskw[] = { 214 IFKW("ip4csum-tx", IFCAP_CSUM_IPv4_Tx) 215 , IFKW("ip4csum-rx", IFCAP_CSUM_IPv4_Rx) 216 , IFKW("tcp4csum-tx", IFCAP_CSUM_TCPv4_Tx) 217 , IFKW("tcp4csum-rx", IFCAP_CSUM_TCPv4_Rx) 218 , IFKW("udp4csum-tx", IFCAP_CSUM_UDPv4_Tx) 219 , IFKW("udp4csum-rx", IFCAP_CSUM_UDPv4_Rx) 220 , IFKW("tcp6csum-tx", IFCAP_CSUM_TCPv6_Tx) 221 , IFKW("tcp6csum-rx", IFCAP_CSUM_TCPv6_Rx) 222 , IFKW("udp6csum-tx", IFCAP_CSUM_UDPv6_Tx) 223 , IFKW("udp6csum-rx", IFCAP_CSUM_UDPv6_Rx) 224 , IFKW("ip4csum", IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_IPv4_Rx) 225 , IFKW("tcp4csum", IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_TCPv4_Rx) 226 , IFKW("udp4csum", IFCAP_CSUM_UDPv4_Tx|IFCAP_CSUM_UDPv4_Rx) 227 , IFKW("tcp6csum", IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_TCPv6_Rx) 228 , IFKW("udp6csum", IFCAP_CSUM_UDPv6_Tx|IFCAP_CSUM_UDPv6_Rx) 229 , IFKW("tso4", IFCAP_TSOv4) 230 , IFKW("tso6", IFCAP_TSOv6) 231 }; 232 233 extern struct pbranch command_root; 234 extern struct pbranch opt_command; 235 extern struct pbranch opt_family, opt_silent_family; 236 extern struct pkw cloning, silent_family, family, ifcaps, ifflags, misc; 237 238 struct pinteger parse_metric = PINTEGER_INITIALIZER(&parse_metric, "metric", 10, 239 setifmetric, "metric", &command_root.pb_parser); 240 241 struct pinteger parse_mtu = PINTEGER_INITIALIZER(&parse_mtu, "mtu", 10, 242 setifmtu, "mtu", &command_root.pb_parser); 243 244 struct pinteger parse_prefixlen = PINTEGER_INITIALIZER(&parse_prefixlen, 245 "prefixlen", 10, setifprefixlen, "prefixlen", &command_root.pb_parser); 246 247 struct pinteger parse_preference = PINTEGER_INITIALIZER1(&parse_preference, 248 "preference", INT16_MIN, INT16_MAX, 10, NULL, "preference", 249 &command_root.pb_parser); 250 251 struct paddr parse_netmask = PADDR_INITIALIZER(&parse_netmask, "netmask", 252 setifnetmask, "dstormask", NULL, NULL, NULL, &command_root.pb_parser); 253 254 struct paddr parse_broadcast = PADDR_INITIALIZER(&parse_broadcast, 255 "broadcast address", 256 setifbroadaddr, "broadcast", NULL, NULL, NULL, &command_root.pb_parser); 257 258 struct pstr mediamode = PSTR_INITIALIZER(&mediamode, "mediamode", 259 setmediamode, "mediamode", &command_root.pb_parser); 260 261 struct pinteger mediainst = PINTEGER_INITIALIZER1(&mediainst, "mediainst", 262 0, IFM_INST_MAX, 10, setmediainst, "mediainst", &command_root.pb_parser); 263 264 struct pstr unmediaopt = PSTR_INITIALIZER(&unmediaopt, "-mediaopt", 265 unsetmediaopt, "unmediaopt", &command_root.pb_parser); 266 267 struct pstr mediaopt = PSTR_INITIALIZER(&mediaopt, "mediaopt", 268 setmediaopt, "mediaopt", &command_root.pb_parser); 269 270 struct pstr media = PSTR_INITIALIZER(&media, "media", 271 setmedia, "media", &command_root.pb_parser); 272 273 static const struct kwinst misckw[] = { 274 {.k_word = "alias", .k_key = "alias", .k_deact = "alias", 275 .k_type = KW_T_BOOL, .k_neg = true, 276 .k_bool = true, .k_negbool = false, 277 .k_exec = notealias, .k_nextparser = &command_root.pb_parser} 278 , {.k_word = "broadcast", .k_nextparser = &parse_broadcast.pa_parser} 279 , {.k_word = "delete", .k_key = "alias", .k_deact = "alias", 280 .k_type = KW_T_BOOL, .k_bool = false, .k_exec = notealias, 281 .k_nextparser = &command_root.pb_parser} 282 , {.k_word = "instance", .k_key = "anymedia", .k_type = KW_T_BOOL, 283 .k_bool = true, .k_act = "media", .k_deact = "mediainst", 284 .k_nextparser = &mediainst.pi_parser} 285 , {.k_word = "inst", .k_key = "anymedia", .k_type = KW_T_BOOL, 286 .k_bool = true, .k_act = "media", .k_deact = "mediainst", 287 .k_nextparser = &mediainst.pi_parser} 288 , {.k_word = "media", .k_key = "anymedia", .k_type = KW_T_BOOL, 289 .k_bool = true, .k_deact = "media", .k_altdeact = "anymedia", 290 .k_nextparser = &media.ps_parser} 291 , {.k_word = "mediaopt", .k_key = "anymedia", .k_type = KW_T_BOOL, 292 .k_bool = true, .k_deact = "mediaopt", .k_altdeact = "instance", 293 .k_nextparser = &mediaopt.ps_parser} 294 , {.k_word = "-mediaopt", .k_key = "anymedia", .k_type = KW_T_BOOL, 295 .k_bool = true, .k_deact = "unmediaopt", .k_altdeact = "media", 296 .k_nextparser = &unmediaopt.ps_parser} 297 , {.k_word = "mode", .k_key = "anymedia", .k_type = KW_T_BOOL, 298 .k_bool = true, .k_deact = "mode", 299 .k_nextparser = &mediamode.ps_parser} 300 , {.k_word = "metric", .k_nextparser = &parse_metric.pi_parser} 301 , {.k_word = "mtu", .k_nextparser = &parse_mtu.pi_parser} 302 , {.k_word = "netmask", .k_nextparser = &parse_netmask.pa_parser} 303 , {.k_word = "preference", .k_act = "address", 304 .k_nextparser = &parse_preference.pi_parser} 305 , {.k_word = "prefixlen", .k_nextparser = &parse_prefixlen.pi_parser} 306 , {.k_word = "trailers", .k_neg = true, 307 .k_exec = notrailers, .k_nextparser = &command_root.pb_parser} 308 }; 309 310 /* key: clonecmd */ 311 static const struct kwinst clonekw[] = { 312 {.k_word = "create", .k_type = KW_T_NUM, .k_num = SIOCIFCREATE, 313 .k_nextparser = &opt_silent_family.pb_parser}, 314 {.k_word = "destroy", .k_type = KW_T_NUM, .k_num = SIOCIFDESTROY} 315 }; 316 317 static const struct kwinst familykw[] = { 318 {.k_word = "inet", .k_type = KW_T_NUM, .k_num = AF_INET, 319 .k_nextparser = NULL} 320 #ifdef INET6 321 , {.k_word = "inet6", .k_type = KW_T_NUM, .k_num = AF_INET6, 322 .k_nextparser = NULL} 323 #endif 324 #ifndef INET_ONLY /* small version, for boot media */ 325 , {.k_word = "atalk", .k_type = KW_T_NUM, .k_num = AF_APPLETALK, 326 .k_nextparser = NULL} 327 , {.k_word = "iso", .k_type = KW_T_NUM, .k_num = AF_ISO, 328 .k_nextparser = NULL} 329 #endif /* INET_ONLY */ 330 }; 331 332 struct pterm cloneterm = PTERM_INITIALIZER(&cloneterm, "list cloners", 333 list_cloners, "none"); 334 335 struct pterm no_cmds = PTERM_INITIALIZER(&no_cmds, "no commands", no_cmds_exec, 336 "none"); 337 338 struct pkw family_only = 339 PKW_INITIALIZER(&family_only, "family-only", NULL, "af", familykw, 340 __arraycount(familykw), &no_cmds.pt_parser); 341 342 struct paddr address = PADDR_INITIALIZER(&address, 343 "local address (address 1)", 344 setifaddr, "address", "netmask", NULL, "address", &command_root.pb_parser); 345 346 struct paddr dstormask = PADDR_INITIALIZER(&dstormask, 347 "destination/netmask (address 2)", 348 setifdstormask, "dstormask", NULL, "address", "dstormask", 349 &command_root.pb_parser); 350 351 struct paddr broadcast = PADDR_INITIALIZER(&broadcast, 352 "broadcast address (address 3)", 353 setifbroadaddr, "broadcast", NULL, "dstormask", "broadcast", 354 &command_root.pb_parser); 355 356 struct branch opt_clone_brs[] = { 357 {.b_nextparser = &cloning.pk_parser} 358 , {.b_nextparser = &opt_family.pb_parser} 359 }, opt_silent_family_brs[] = { 360 {.b_nextparser = &silent_family.pk_parser} 361 , {.b_nextparser = &command_root.pb_parser} 362 }, opt_family_brs[] = { 363 {.b_nextparser = &family.pk_parser} 364 , {.b_nextparser = &opt_command.pb_parser} 365 }, command_root_brs[] = { 366 {.b_nextparser = &ieee80211bool.pk_parser} 367 , {.b_nextparser = &ifflags.pk_parser} 368 , {.b_nextparser = &ifcaps.pk_parser} 369 #ifdef INET6 370 , {.b_nextparser = &ia6flags.pk_parser} 371 , {.b_nextparser = &inet6.pk_parser} 372 #endif /*INET6*/ 373 , {.b_nextparser = &misc.pk_parser} 374 , {.b_nextparser = &tunnel.pk_parser} 375 , {.b_nextparser = &vlan.pk_parser} 376 , {.b_nextparser = &agr.pk_parser} 377 #ifndef INET_ONLY 378 , {.b_nextparser = &carp.pk_parser} 379 , {.b_nextparser = &atalk.pk_parser} 380 , {.b_nextparser = &iso.pk_parser} 381 #endif 382 , {.b_nextparser = &kw80211.pk_parser} 383 , {.b_nextparser = &address.pa_parser} 384 , {.b_nextparser = &dstormask.pa_parser} 385 , {.b_nextparser = &broadcast.pa_parser} 386 , {.b_nextparser = NULL} 387 }, opt_command_brs[] = { 388 {.b_nextparser = &no_cmds.pt_parser} 389 , {.b_nextparser = &command_root.pb_parser} 390 }; 391 392 struct branch opt_family_only_brs[] = { 393 {.b_nextparser = &no_cmds.pt_parser} 394 , {.b_nextparser = &family_only.pk_parser} 395 }; 396 struct pbranch opt_family_only = PBRANCH_INITIALIZER(&opt_family_only, 397 "opt-family-only", opt_family_only_brs, 398 __arraycount(opt_family_only_brs), true); 399 struct pbranch opt_command = PBRANCH_INITIALIZER(&opt_command, 400 "optional command", 401 opt_command_brs, __arraycount(opt_command_brs), true); 402 403 struct pbranch command_root = PBRANCH_INITIALIZER(&command_root, 404 "command-root", command_root_brs, __arraycount(command_root_brs), true); 405 406 struct piface iface_opt_family_only = 407 PIFACE_INITIALIZER(&iface_opt_family_only, "iface-opt-family-only", 408 NULL, "if", &opt_family_only.pb_parser); 409 410 struct pkw family = PKW_INITIALIZER(&family, "family", NULL, "af", 411 familykw, __arraycount(familykw), &opt_command.pb_parser); 412 413 struct pkw silent_family = PKW_INITIALIZER(&silent_family, "silent family", 414 NULL, "af", familykw, __arraycount(familykw), &command_root.pb_parser); 415 416 struct pkw ifcaps = PKW_INITIALIZER(&ifcaps, "ifcaps", setifcaps, 417 "ifcap", ifcapskw, __arraycount(ifcapskw), &command_root.pb_parser); 418 419 struct pkw ifflags = PKW_INITIALIZER(&ifflags, "ifflags", setifflags, 420 "ifflag", ifflagskw, __arraycount(ifflagskw), &command_root.pb_parser); 421 422 struct pkw cloning = PKW_INITIALIZER(&cloning, "cloning", clone_command, 423 "clonecmd", clonekw, __arraycount(clonekw), NULL); 424 425 struct pkw misc = PKW_INITIALIZER(&misc, "misc", NULL, NULL, 426 misckw, __arraycount(misckw), NULL); 427 428 struct pbranch opt_clone = PBRANCH_INITIALIZER(&opt_clone, 429 "opt-clone", opt_clone_brs, __arraycount(opt_clone_brs), true); 430 431 struct pbranch opt_silent_family = PBRANCH_INITIALIZER(&opt_silent_family, 432 "optional silent family", opt_silent_family_brs, 433 __arraycount(opt_silent_family_brs), true); 434 435 struct pbranch opt_family = PBRANCH_INITIALIZER(&opt_family, 436 "opt-family", opt_family_brs, __arraycount(opt_family_brs), true); 437 438 struct piface iface_start = PIFACE_INITIALIZER(&iface_start, 439 "iface-opt-family", NULL, "if", &opt_clone.pb_parser); 440 441 struct piface iface_only = PIFACE_INITIALIZER(&iface_only, "iface", 442 media_status_exec, "if", NULL); 443 444 static struct parser * 445 init_parser(void) 446 { 447 if (parser_init(&iface_opt_family_only.pif_parser) == -1) 448 err(EXIT_FAILURE, "parser_init(iface_opt_family_only)"); 449 if (parser_init(&iface_only.pif_parser) == -1) 450 err(EXIT_FAILURE, "parser_init(iface_only)"); 451 if (parser_init(&iface_start.pif_parser) == -1) 452 err(EXIT_FAILURE, "parser_init(iface_start)"); 453 454 return &iface_start.pif_parser; 455 } 456 457 static int 458 no_cmds_exec(prop_dictionary_t env, prop_dictionary_t xenv) 459 { 460 const char *ifname; 461 unsigned short ignore; 462 463 /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ 464 if ((ifname = getifname(env)) == NULL) 465 ; 466 else if (getifflags(env, xenv, &ignore) == -1) 467 err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); 468 469 printall(ifname, env); 470 exit(EXIT_SUCCESS); 471 } 472 473 static int 474 media_status_exec(prop_dictionary_t env, prop_dictionary_t xenv) 475 { 476 const char *ifname; 477 unsigned short ignore; 478 479 /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ 480 if ((ifname = getifname(env)) == NULL) 481 ; 482 else if (getifflags(env, xenv, &ignore) == -1) 483 err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); 484 485 exit(carrier(env)); 486 } 487 488 static void 489 do_setifcaps(prop_dictionary_t env) 490 { 491 struct ifcapreq ifcr; 492 prop_data_t d; 493 494 d = (prop_data_t )prop_dictionary_get(env, "ifcaps"); 495 if (d == NULL) 496 return; 497 498 assert(sizeof(ifcr) == prop_data_size(d)); 499 500 memcpy(&ifcr, prop_data_data_nocopy(d), sizeof(ifcr)); 501 if (direct_ioctl(env, SIOCSIFCAP, &ifcr) == -1) 502 err(EXIT_FAILURE, "SIOCSIFCAP"); 503 } 504 505 int 506 main(int argc, char **argv) 507 { 508 const struct afswtch *afp; 509 int af, aflag = 0, Cflag = 0, s; 510 struct match match[32]; 511 size_t nmatch; 512 struct parser *start; 513 int ch, narg = 0, rc; 514 prop_dictionary_t env, xenv; 515 const char *ifname; 516 517 memset(match, 0, sizeof(match)); 518 519 start = init_parser(); 520 521 /* Parse command-line options */ 522 aflag = mflag = vflag = zflag = 0; 523 while ((ch = getopt(argc, argv, "AabCdhlmsuvz" 524 #ifdef INET6 525 "L" 526 #endif 527 )) != -1) { 528 switch (ch) { 529 case 'A': 530 warnx("-A is deprecated"); 531 break; 532 533 case 'a': 534 aflag = 1; 535 break; 536 537 case 'b': 538 bflag = 1; 539 break; 540 541 case 'C': 542 Cflag = 1; 543 break; 544 545 case 'd': 546 dflag = 1; 547 break; 548 case 'h': 549 hflag = 1; 550 break; 551 #ifdef INET6 552 case 'L': 553 Lflag = 1; 554 break; 555 #endif 556 557 case 'l': 558 lflag = 1; 559 break; 560 561 case 'm': 562 mflag = 1; 563 break; 564 565 case 's': 566 sflag = 1; 567 break; 568 569 case 'u': 570 uflag = 1; 571 break; 572 573 case 'v': 574 vflag = 1; 575 break; 576 577 case 'z': 578 zflag = 1; 579 break; 580 581 582 default: 583 usage(); 584 /* NOTREACHED */ 585 } 586 switch (ch) { 587 case 'a': 588 start = &opt_family_only.pb_parser; 589 break; 590 591 #ifdef INET6 592 case 'L': 593 #endif 594 case 'm': 595 case 'v': 596 case 'z': 597 if (start != &opt_family_only.pb_parser) 598 start = &iface_opt_family_only.pif_parser; 599 break; 600 case 'C': 601 start = &cloneterm.pt_parser; 602 break; 603 case 'l': 604 start = &no_cmds.pt_parser; 605 break; 606 case 's': 607 if (start != &no_cmds.pt_parser && 608 start != &opt_family_only.pb_parser) 609 start = &iface_only.pif_parser; 610 break; 611 default: 612 break; 613 } 614 } 615 argc -= optind; 616 argv += optind; 617 618 /* 619 * -l means "list all interfaces", and is mutally exclusive with 620 * all other flags/commands. 621 * 622 * -C means "list all names of cloners", and it mutually exclusive 623 * with all other flags/commands. 624 * 625 * -a means "print status of all interfaces". 626 */ 627 if ((lflag || Cflag) && (aflag || mflag || vflag || zflag)) 628 usage(); 629 #ifdef INET6 630 if ((lflag || Cflag) && Lflag) 631 usage(); 632 #endif 633 if (lflag && Cflag) 634 usage(); 635 636 nmatch = __arraycount(match); 637 638 rc = parse(argc, argv, start, match, &nmatch, &narg); 639 if (rc != 0) 640 usage(); 641 642 if ((xenv = prop_dictionary_create()) == NULL) 643 err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); 644 645 if (matches_exec(match, xenv, nmatch) == -1) 646 err(EXIT_FAILURE, "exec_matches"); 647 648 argc -= narg; 649 argv += narg; 650 651 env = (nmatch > 0) ? match[(int)nmatch - 1].m_env : NULL; 652 if (env == NULL) 653 env = xenv; 654 else 655 env = prop_dictionary_augment(env, xenv); 656 657 /* Process any media commands that may have been issued. */ 658 process_media_commands(env); 659 660 af = getaf(env); 661 switch (af) { 662 #ifndef INET_ONLY 663 case AF_APPLETALK: 664 checkatrange(&at_addreq.ifra_addr); 665 break; 666 #endif /* INET_ONLY */ 667 default: 668 break; 669 case -1: 670 af = AF_INET; 671 break; 672 } 673 674 if ((s = getsock(af)) == -1) 675 err(EXIT_FAILURE, "%s: getsock", __func__); 676 677 if ((ifname = getifname(env)) == NULL) 678 err(EXIT_FAILURE, "%s: getifname", __func__); 679 680 if ((afp = lookup_af_bynum(af)) == NULL) 681 errx(EXIT_FAILURE, "%s: lookup_af_bynum", __func__); 682 683 if (afp->af_addr_commit != NULL) { 684 (*afp->af_addr_commit)(env, xenv); 685 } else { 686 if (clearaddr) { 687 estrlcpy(afp->af_ridreq, ifname, IFNAMSIZ); 688 if (ioctl(s, afp->af_difaddr, afp->af_ridreq) == -1) 689 err(EXIT_FAILURE, "SIOCDIFADDR"); 690 } 691 if (newaddr > 0) { 692 estrlcpy(afp->af_addreq, ifname, IFNAMSIZ); 693 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) == -1) 694 warn("SIOCAIFADDR"); 695 else if (check_up_state < 0) 696 check_up_state = 1; 697 } 698 } 699 700 do_setifpreference(env); 701 do_setifcaps(env); 702 703 if (check_up_state == 1) 704 check_ifflags_up(env); 705 706 exit(EXIT_SUCCESS); 707 } 708 709 const struct afswtch * 710 lookup_af_bynum(int afnum) 711 { 712 const struct afswtch *a; 713 714 for (a = afs; a->af_name != NULL; a++) 715 if (a->af_af == afnum) 716 return (a); 717 return (NULL); 718 } 719 720 void 721 printall(const char *ifname, prop_dictionary_t env0) 722 { 723 struct ifaddrs *ifap, *ifa; 724 struct ifreq ifr; 725 const struct sockaddr_dl *sdl = NULL; 726 prop_dictionary_t env, oenv; 727 int idx; 728 char *p; 729 730 if (env0 == NULL) 731 env = prop_dictionary_create(); 732 else 733 env = prop_dictionary_copy_mutable(env0); 734 735 oenv = prop_dictionary_create(); 736 737 if (env == NULL || oenv == NULL) 738 errx(EXIT_FAILURE, "%s: prop_dictionary_copy/create", __func__); 739 740 if (getifaddrs(&ifap) != 0) 741 err(EXIT_FAILURE, "getifaddrs"); 742 p = NULL; 743 idx = 0; 744 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 745 memset(&ifr, 0, sizeof(ifr)); 746 estrlcpy(ifr.ifr_name, ifa->ifa_name, sizeof(ifr.ifr_name)); 747 if (sizeof(ifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 748 memcpy(&ifr.ifr_addr, ifa->ifa_addr, 749 ifa->ifa_addr->sa_len); 750 } 751 752 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0) 753 continue; 754 if (ifa->ifa_addr->sa_family == AF_LINK) 755 sdl = (const struct sockaddr_dl *) ifa->ifa_addr; 756 if (p && strcmp(p, ifa->ifa_name) == 0) 757 continue; 758 if (!prop_dictionary_set_cstring(env, "if", ifa->ifa_name)) 759 continue; 760 p = ifa->ifa_name; 761 762 if (bflag && (ifa->ifa_flags & IFF_BROADCAST) == 0) 763 continue; 764 if (dflag && (ifa->ifa_flags & IFF_UP) != 0) 765 continue; 766 if (uflag && (ifa->ifa_flags & IFF_UP) == 0) 767 continue; 768 769 if (sflag && carrier(env)) 770 continue; 771 idx++; 772 /* 773 * Are we just listing the interfaces? 774 */ 775 if (lflag) { 776 if (idx > 1) 777 printf(" "); 778 fputs(ifa->ifa_name, stdout); 779 continue; 780 } 781 782 status(sdl, env, oenv); 783 sdl = NULL; 784 } 785 if (lflag) 786 printf("\n"); 787 prop_object_release((prop_object_t)env); 788 prop_object_release((prop_object_t)oenv); 789 freeifaddrs(ifap); 790 } 791 792 int 793 list_cloners(prop_dictionary_t env, prop_dictionary_t oenv) 794 { 795 struct if_clonereq ifcr; 796 char *cp, *buf; 797 int idx, s; 798 799 memset(&ifcr, 0, sizeof(ifcr)); 800 801 s = getsock(AF_INET); 802 803 if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 804 err(EXIT_FAILURE, "SIOCIFGCLONERS for count"); 805 806 buf = malloc(ifcr.ifcr_total * IFNAMSIZ); 807 if (buf == NULL) 808 err(EXIT_FAILURE, "unable to allocate cloner name buffer"); 809 810 ifcr.ifcr_count = ifcr.ifcr_total; 811 ifcr.ifcr_buffer = buf; 812 813 if (ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 814 err(EXIT_FAILURE, "SIOCIFGCLONERS for names"); 815 816 /* 817 * In case some disappeared in the mean time, clamp it down. 818 */ 819 if (ifcr.ifcr_count > ifcr.ifcr_total) 820 ifcr.ifcr_count = ifcr.ifcr_total; 821 822 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { 823 if (idx > 0) 824 printf(" "); 825 printf("%s", cp); 826 } 827 828 printf("\n"); 829 free(buf); 830 exit(EXIT_SUCCESS); 831 } 832 833 static int 834 clone_command(prop_dictionary_t env, prop_dictionary_t xenv) 835 { 836 int64_t cmd; 837 838 if (!prop_dictionary_get_int64(env, "clonecmd", &cmd)) { 839 errno = ENOENT; 840 return -1; 841 } 842 843 if (indirect_ioctl(env, (unsigned long)cmd, NULL) == -1) { 844 warn("%s", __func__); 845 return -1; 846 } 847 return 0; 848 } 849 850 /*ARGSUSED*/ 851 int 852 setifaddr(prop_dictionary_t env, prop_dictionary_t xenv) 853 { 854 struct ifreq *ifr; /* XXX */ 855 const struct paddr_prefix *pfx0; 856 struct paddr_prefix *pfx; 857 prop_data_t d; 858 const char *ifname; 859 int af, s; 860 const struct afswtch *afp; 861 862 if ((af = getaf(env)) == -1) 863 af = AF_INET; 864 865 if ((afp = lookup_af_bynum(af)) == NULL) 866 return -1; 867 868 d = (prop_data_t)prop_dictionary_get(env, "address"); 869 assert(d != NULL); 870 pfx0 = prop_data_data_nocopy(d); 871 872 if (pfx0->pfx_len >= 0) { 873 pfx = prefixlen_to_mask(af, pfx0->pfx_len); 874 if (pfx == NULL) 875 err(EXIT_FAILURE, "prefixlen_to_mask"); 876 877 if (afp->af_getaddr != NULL) 878 (*afp->af_getaddr)(pfx, MASK); 879 free(pfx); 880 } 881 882 if (afp->af_addr_commit != NULL) 883 return 0; 884 885 if ((ifname = getifname(env)) == NULL) 886 return -1; 887 888 /* 889 * Delay the ioctl to set the interface addr until flags are all set. 890 * The address interpretation may depend on the flags, 891 * and the flags may change when the address is set. 892 */ 893 setaddr++; 894 if (newaddr == -1) 895 newaddr = 1; 896 if (doalias == 0 && afp->af_gifaddr != 0) { 897 ifr = (struct ifreq *)afp->af_ridreq; 898 estrlcpy(ifr->ifr_name, ifname, sizeof(ifr->ifr_name)); 899 ifr->ifr_addr.sa_family = af; 900 901 if ((s = getsock(af)) == -1) 902 err(EXIT_FAILURE, "getsock"); 903 904 if (ioctl(s, afp->af_gifaddr, afp->af_ridreq) == 0) 905 clearaddr = 1; 906 else if (errno == EADDRNOTAVAIL) 907 /* No address was assigned yet. */ 908 ; 909 else 910 err(EXIT_FAILURE, "SIOCGIFADDR"); 911 } 912 913 #if 0 914 int i; 915 for (i = 0; i < pfx0->pfx_addr.sa_len; i++) 916 printf(" %02x", ((const uint8_t *)&pfx->pfx_addr)[i]); 917 printf("\n"); 918 #endif 919 if (afp->af_getaddr != NULL) 920 (*afp->af_getaddr)(pfx0, (doalias >= 0 ? ADDR : RIDADDR)); 921 return 0; 922 } 923 924 int 925 setifnetmask(prop_dictionary_t env, prop_dictionary_t xenv) 926 { 927 const struct paddr_prefix *pfx; 928 prop_data_t d; 929 int af; 930 const struct afswtch *afp; 931 932 if ((af = getaf(env)) == -1) 933 af = AF_INET; 934 935 if ((afp = lookup_af_bynum(af)) == NULL) 936 return -1; 937 938 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 939 assert(d != NULL); 940 pfx = prop_data_data_nocopy(d); 941 942 if (!prop_dictionary_set(xenv, "netmask", (prop_object_t)d)) 943 return -1; 944 945 if (afp->af_getaddr != NULL) 946 (*afp->af_getaddr)(pfx, MASK); 947 return 0; 948 } 949 950 int 951 setifbroadaddr(prop_dictionary_t env, prop_dictionary_t xenv) 952 { 953 const struct paddr_prefix *pfx; 954 prop_data_t d; 955 int af; 956 const struct afswtch *afp; 957 unsigned short flags; 958 959 if ((af = getaf(env)) == -1) 960 af = AF_INET; 961 962 if ((afp = lookup_af_bynum(af)) == NULL) 963 return -1; 964 965 if (getifflags(env, xenv, &flags) == -1) 966 err(EXIT_FAILURE, "%s: getifflags", __func__); 967 968 if ((flags & IFF_BROADCAST) == 0) 969 errx(EXIT_FAILURE, "not a broadcast interface"); 970 971 d = (prop_data_t)prop_dictionary_get(env, "broadcast"); 972 assert(d != NULL); 973 pfx = prop_data_data_nocopy(d); 974 975 if (!prop_dictionary_set(xenv, "broadcast", (prop_object_t)d)) 976 return -1; 977 978 if (afp->af_getaddr != NULL) 979 (*afp->af_getaddr)(pfx, DSTADDR); 980 981 return 0; 982 } 983 984 #define rqtosa(__afp, __x) (&(((struct ifreq *)(__afp->__x))->ifr_addr)) 985 986 int 987 notealias(prop_dictionary_t env, prop_dictionary_t xenv) 988 { 989 bool alias, delete; 990 int af; 991 const struct afswtch *afp; 992 993 if ((af = getaf(env)) == -1) 994 af = AF_INET; 995 996 if ((afp = lookup_af_bynum(af)) == NULL) 997 return -1; 998 999 if (afp->af_addr_commit != NULL) 1000 return 0; 1001 1002 if (!prop_dictionary_get_bool(env, "alias", &alias)) { 1003 errno = ENOENT; 1004 return -1; 1005 } 1006 delete = !alias; 1007 if (setaddr && doalias == 0 && delete) 1008 memcpy(rqtosa(afp, af_ridreq), rqtosa(afp, af_addreq), 1009 rqtosa(afp, af_addreq)->sa_len); 1010 doalias = delete ? -1 : 1; 1011 if (delete) { 1012 clearaddr = 1; 1013 newaddr = 0; 1014 } else { 1015 clearaddr = 0; 1016 } 1017 return 0; 1018 } 1019 1020 /*ARGSUSED*/ 1021 int 1022 notrailers(prop_dictionary_t env, prop_dictionary_t xenv) 1023 { 1024 puts("Note: trailers are no longer sent, but always received"); 1025 return 0; 1026 } 1027 1028 /*ARGSUSED*/ 1029 int 1030 setifdstormask(prop_dictionary_t env, prop_dictionary_t xenv) 1031 { 1032 const char *key; 1033 const struct paddr_prefix *pfx; 1034 prop_data_t d; 1035 int af, which; 1036 const struct afswtch *afp; 1037 unsigned short flags; 1038 1039 if ((af = getaf(env)) == -1) 1040 af = AF_INET; 1041 1042 if ((afp = lookup_af_bynum(af)) == NULL) 1043 return -1; 1044 1045 if (getifflags(env, xenv, &flags) == -1) 1046 err(EXIT_FAILURE, "%s: getifflags", __func__); 1047 1048 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 1049 assert(d != NULL); 1050 pfx = prop_data_data_nocopy(d); 1051 1052 if ((flags & IFF_BROADCAST) == 0) { 1053 key = "dst"; 1054 which = DSTADDR; 1055 } else { 1056 key = "netmask"; 1057 which = MASK; 1058 } 1059 1060 if (!prop_dictionary_set(xenv, key, (prop_object_t)d)) 1061 return -1; 1062 1063 if (afp->af_getaddr != NULL) 1064 (*afp->af_getaddr)(pfx, which); 1065 return 0; 1066 } 1067 1068 void 1069 check_ifflags_up(prop_dictionary_t env) 1070 { 1071 struct ifreq ifr; 1072 1073 if (direct_ioctl(env, SIOCGIFFLAGS, &ifr) == -1) 1074 err(EXIT_FAILURE, "SIOCGIFFLAGS"); 1075 if (ifr.ifr_flags & IFF_UP) 1076 return; 1077 ifr.ifr_flags |= IFF_UP; 1078 if (direct_ioctl(env, SIOCSIFFLAGS, &ifr) == -1) 1079 err(EXIT_FAILURE, "SIOCSIFFLAGS"); 1080 } 1081 1082 int 1083 setifflags(prop_dictionary_t env, prop_dictionary_t xenv) 1084 { 1085 struct ifreq ifr; 1086 int64_t ifflag; 1087 bool rc; 1088 1089 rc = prop_dictionary_get_int64(env, "ifflag", &ifflag); 1090 assert(rc); 1091 1092 if (direct_ioctl(env, SIOCGIFFLAGS, &ifr) == -1) 1093 return -1; 1094 1095 if (ifflag < 0) { 1096 ifflag = -ifflag; 1097 if (ifflag == IFF_UP) 1098 check_up_state = 0; 1099 ifr.ifr_flags &= ~ifflag; 1100 } else 1101 ifr.ifr_flags |= ifflag; 1102 1103 if (direct_ioctl(env, SIOCSIFFLAGS, &ifr) == -1) 1104 return -1; 1105 1106 return 0; 1107 } 1108 1109 static int 1110 getifcaps(prop_dictionary_t env, prop_dictionary_t oenv, struct ifcapreq *oifcr) 1111 { 1112 bool rc; 1113 struct ifcapreq ifcr; 1114 const struct ifcapreq *tmpifcr; 1115 prop_data_t capdata; 1116 1117 capdata = (prop_data_t)prop_dictionary_get(env, "ifcaps"); 1118 1119 if (capdata != NULL) { 1120 tmpifcr = prop_data_data_nocopy(capdata); 1121 *oifcr = *tmpifcr; 1122 return 0; 1123 } 1124 1125 (void)direct_ioctl(env, SIOCGIFCAP, &ifcr); 1126 *oifcr = ifcr; 1127 1128 capdata = prop_data_create_data(&ifcr, sizeof(ifcr)); 1129 1130 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1131 1132 prop_object_release((prop_object_t)capdata); 1133 1134 return rc ? 0 : -1; 1135 } 1136 1137 static int 1138 setifcaps(prop_dictionary_t env, prop_dictionary_t oenv) 1139 { 1140 int64_t ifcap; 1141 int s; 1142 bool rc; 1143 prop_data_t capdata; 1144 const char *ifname; 1145 struct ifcapreq ifcr; 1146 1147 s = getsock(AF_INET); 1148 1149 rc = prop_dictionary_get_int64(env, "ifcap", &ifcap); 1150 assert(rc); 1151 1152 if ((ifname = getifname(env)) == NULL) 1153 return -1; 1154 1155 if (getifcaps(env, oenv, &ifcr) == -1) 1156 return -1; 1157 1158 if (ifcap < 0) { 1159 ifcap = -ifcap; 1160 ifcr.ifcr_capenable &= ~ifcap; 1161 } else 1162 ifcr.ifcr_capenable |= ifcap; 1163 1164 if ((capdata = prop_data_create_data(&ifcr, sizeof(ifcr))) == NULL) 1165 return -1; 1166 1167 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1168 prop_object_release((prop_object_t)capdata); 1169 1170 return rc ? 0 : -1; 1171 } 1172 1173 static int 1174 setifmetric(prop_dictionary_t env, prop_dictionary_t xenv) 1175 { 1176 struct ifreq ifr; 1177 bool rc; 1178 int64_t metric; 1179 1180 rc = prop_dictionary_get_int64(env, "metric", &metric); 1181 assert(rc); 1182 1183 ifr.ifr_metric = metric; 1184 if (direct_ioctl(env, SIOCSIFMETRIC, &ifr) == -1) 1185 warn("SIOCSIFMETRIC"); 1186 return 0; 1187 } 1188 1189 static void 1190 do_setifpreference(prop_dictionary_t env) 1191 { 1192 struct if_addrprefreq ifap; 1193 int af; 1194 const struct afswtch *afp; 1195 prop_data_t d; 1196 const struct paddr_prefix *pfx; 1197 1198 if ((af = getaf(env)) == -1) 1199 af = AF_INET; 1200 1201 if ((afp = lookup_af_bynum(af)) == NULL) 1202 errx(EXIT_FAILURE, "%s: lookup_af_bynum", __func__); 1203 1204 memset(&ifap, 0, sizeof(ifap)); 1205 1206 if (!prop_dictionary_get_int16(env, "preference", 1207 &ifap.ifap_preference)) 1208 return; 1209 1210 d = (prop_data_t)prop_dictionary_get(env, "address"); 1211 assert(d != NULL); 1212 1213 pfx = prop_data_data_nocopy(d); 1214 1215 memcpy(&ifap.ifap_addr, &pfx->pfx_addr, 1216 MIN(sizeof(ifap.ifap_addr), pfx->pfx_addr.sa_len)); 1217 if (direct_ioctl(env, SIOCSIFADDRPREF, &ifap) == -1) 1218 warn("SIOCSIFADDRPREF"); 1219 } 1220 1221 static int 1222 setifmtu(prop_dictionary_t env, prop_dictionary_t xenv) 1223 { 1224 int64_t mtu; 1225 bool rc; 1226 struct ifreq ifr; 1227 1228 rc = prop_dictionary_get_int64(env, "mtu", &mtu); 1229 assert(rc); 1230 1231 ifr.ifr_mtu = mtu; 1232 if (direct_ioctl(env, SIOCSIFMTU, &ifr) == -1) 1233 warn("SIOCSIFMTU"); 1234 1235 return 0; 1236 } 1237 1238 static void 1239 media_error(int type, const char *val, const char *opt) 1240 { 1241 errx(EXIT_FAILURE, "unknown %s media %s: %s", 1242 get_media_type_string(type), opt, val); 1243 } 1244 1245 void 1246 init_current_media(prop_dictionary_t env, prop_dictionary_t oenv) 1247 { 1248 const char *ifname; 1249 struct ifmediareq ifmr; 1250 1251 if ((ifname = getifname(env)) == NULL) 1252 err(EXIT_FAILURE, "getifname"); 1253 1254 /* 1255 * If we have not yet done so, grab the currently-selected 1256 * media. 1257 */ 1258 1259 if (prop_dictionary_get(env, "initmedia") == NULL) { 1260 memset(&ifmr, 0, sizeof(ifmr)); 1261 1262 if (direct_ioctl(env, SIOCGIFMEDIA, &ifmr) == -1) { 1263 /* 1264 * If we get E2BIG, the kernel is telling us 1265 * that there are more, so we can ignore it. 1266 */ 1267 if (errno != E2BIG) 1268 err(EXIT_FAILURE, "SIOCGIFMEDIA"); 1269 } 1270 1271 if (!prop_dictionary_set_bool(oenv, "initmedia", true)) { 1272 err(EXIT_FAILURE, "%s: prop_dictionary_set_bool", 1273 __func__); 1274 } 1275 media_current = ifmr.ifm_current; 1276 } 1277 1278 /* Sanity. */ 1279 if (IFM_TYPE(media_current) == 0) 1280 errx(EXIT_FAILURE, "%s: no link type?", ifname); 1281 } 1282 1283 void 1284 process_media_commands(prop_dictionary_t env) 1285 { 1286 struct ifreq ifr; 1287 1288 if (prop_dictionary_get(env, "media") == NULL && 1289 prop_dictionary_get(env, "mediaopt") == NULL && 1290 prop_dictionary_get(env, "unmediaopt") == NULL && 1291 prop_dictionary_get(env, "mediamode") == NULL) { 1292 /* Nothing to do. */ 1293 return; 1294 } 1295 1296 /* 1297 * Media already set up, and commands sanity-checked. Set/clear 1298 * any options, and we're ready to go. 1299 */ 1300 media_current |= mediaopt_set; 1301 media_current &= ~mediaopt_clear; 1302 1303 memset(&ifr, 0, sizeof(ifr)); 1304 ifr.ifr_media = media_current; 1305 1306 if (direct_ioctl(env, SIOCSIFMEDIA, &ifr) == -1) 1307 err(EXIT_FAILURE, "SIOCSIFMEDIA"); 1308 } 1309 1310 int 1311 setmedia(prop_dictionary_t env, prop_dictionary_t xenv) 1312 { 1313 int type, subtype, inst; 1314 prop_data_t data; 1315 char *val; 1316 1317 init_current_media(env, xenv); 1318 1319 data = (prop_data_t)prop_dictionary_get(env, "media"); 1320 assert(data != NULL); 1321 1322 /* Only one media command may be given. */ 1323 /* Must not come after mode commands */ 1324 /* Must not come after mediaopt commands */ 1325 1326 /* 1327 * No need to check if `instance' has been issued; setmediainst() 1328 * craps out if `media' has not been specified. 1329 */ 1330 1331 type = IFM_TYPE(media_current); 1332 inst = IFM_INST(media_current); 1333 1334 val = strndup(prop_data_data_nocopy(data), prop_data_size(data)); 1335 if (val == NULL) 1336 return -1; 1337 1338 /* Look up the subtype. */ 1339 subtype = get_media_subtype(type, val); 1340 if (subtype == -1) 1341 media_error(type, val, "subtype"); 1342 1343 /* Build the new current media word. */ 1344 media_current = IFM_MAKEWORD(type, subtype, 0, inst); 1345 1346 /* Media will be set after other processing is complete. */ 1347 return 0; 1348 } 1349 1350 int 1351 setmediaopt(prop_dictionary_t env, prop_dictionary_t xenv) 1352 { 1353 char *invalid; 1354 prop_data_t data; 1355 char *val; 1356 1357 init_current_media(env, xenv); 1358 1359 data = (prop_data_t)prop_dictionary_get(env, "mediaopt"); 1360 assert(data != NULL); 1361 1362 /* Can only issue `mediaopt' once. */ 1363 /* Can't issue `mediaopt' if `instance' has already been issued. */ 1364 1365 val = strndup(prop_data_data_nocopy(data), prop_data_size(data)); 1366 if (val == NULL) 1367 return -1; 1368 1369 mediaopt_set = get_media_options(media_current, val, &invalid); 1370 free(val); 1371 if (mediaopt_set == -1) 1372 media_error(media_current, invalid, "option"); 1373 1374 /* Media will be set after other processing is complete. */ 1375 return 0; 1376 } 1377 1378 int 1379 unsetmediaopt(prop_dictionary_t env, prop_dictionary_t xenv) 1380 { 1381 char *invalid, *val; 1382 prop_data_t data; 1383 1384 init_current_media(env, xenv); 1385 1386 data = (prop_data_t)prop_dictionary_get(env, "unmediaopt"); 1387 if (data == NULL) { 1388 errno = ENOENT; 1389 return -1; 1390 } 1391 1392 val = strndup(prop_data_data_nocopy(data), prop_data_size(data)); 1393 if (val == NULL) 1394 return -1; 1395 1396 /* 1397 * No need to check for A_MEDIAINST, since the test for A_MEDIA 1398 * implicitly checks for A_MEDIAINST. 1399 */ 1400 1401 mediaopt_clear = get_media_options(media_current, val, &invalid); 1402 free(val); 1403 if (mediaopt_clear == -1) 1404 media_error(media_current, invalid, "option"); 1405 1406 /* Media will be set after other processing is complete. */ 1407 return 0; 1408 } 1409 1410 int 1411 setmediainst(prop_dictionary_t env, prop_dictionary_t xenv) 1412 { 1413 int type, subtype, options; 1414 int64_t inst; 1415 bool rc; 1416 1417 init_current_media(env, xenv); 1418 1419 rc = prop_dictionary_get_int64(env, "mediainst", &inst); 1420 assert(rc); 1421 1422 /* Can only issue `instance' once. */ 1423 /* Must have already specified `media' */ 1424 1425 type = IFM_TYPE(media_current); 1426 subtype = IFM_SUBTYPE(media_current); 1427 options = IFM_OPTIONS(media_current); 1428 1429 media_current = IFM_MAKEWORD(type, subtype, options, inst); 1430 1431 /* Media will be set after other processing is complete. */ 1432 return 0; 1433 } 1434 1435 int 1436 setmediamode(prop_dictionary_t env, prop_dictionary_t xenv) 1437 { 1438 int type, subtype, options, inst, mode; 1439 prop_data_t data; 1440 char *val; 1441 1442 init_current_media(env, xenv); 1443 1444 data = (prop_data_t)prop_dictionary_get(env, "mediamode"); 1445 assert(data != NULL); 1446 1447 type = IFM_TYPE(media_current); 1448 subtype = IFM_SUBTYPE(media_current); 1449 options = IFM_OPTIONS(media_current); 1450 inst = IFM_INST(media_current); 1451 1452 val = strndup(prop_data_data_nocopy(data), prop_data_size(data)); 1453 if (val == NULL) 1454 return -1; 1455 1456 mode = get_media_mode(type, val); 1457 if (mode == -1) 1458 media_error(type, val, "mode"); 1459 1460 free(val); 1461 1462 media_current = IFM_MAKEWORD(type, subtype, options, inst) | mode; 1463 1464 /* Media will be set after other processing is complete. */ 1465 return 0; 1466 } 1467 1468 void 1469 print_media_word(int ifmw, const char *opt_sep) 1470 { 1471 const char *str; 1472 1473 printf("%s", get_media_subtype_string(ifmw)); 1474 1475 /* Find mode. */ 1476 if (IFM_MODE(ifmw) != 0) { 1477 str = get_media_mode_string(ifmw); 1478 if (str != NULL) 1479 printf(" mode %s", str); 1480 } 1481 1482 /* Find options. */ 1483 for (; (str = get_media_option_string(&ifmw)) != NULL; opt_sep = ",") 1484 printf("%s%s", opt_sep, str); 1485 1486 if (IFM_INST(ifmw) != 0) 1487 printf(" instance %d", IFM_INST(ifmw)); 1488 } 1489 1490 int 1491 carrier(prop_dictionary_t env) 1492 { 1493 struct ifmediareq ifmr; 1494 1495 memset(&ifmr, 0, sizeof(ifmr)); 1496 1497 if (direct_ioctl(env, SIOCGIFMEDIA, &ifmr) == -1) { 1498 /* 1499 * Interface doesn't support SIOC{G,S}IFMEDIA; 1500 * assume ok. 1501 */ 1502 return EXIT_SUCCESS; 1503 } 1504 if ((ifmr.ifm_status & IFM_AVALID) == 0) { 1505 /* 1506 * Interface doesn't report media-valid status. 1507 * assume ok. 1508 */ 1509 return EXIT_SUCCESS; 1510 } 1511 /* otherwise, return ok for active, not-ok if not active. */ 1512 if (ifmr.ifm_status & IFM_ACTIVE) 1513 return EXIT_SUCCESS; 1514 else 1515 return EXIT_FAILURE; 1516 } 1517 1518 const int ifm_status_valid_list[] = IFM_STATUS_VALID_LIST; 1519 1520 const struct ifmedia_status_description ifm_status_descriptions[] = 1521 IFM_STATUS_DESCRIPTIONS; 1522 1523 /* 1524 * Print the status of the interface. If an address family was 1525 * specified, show it and it only; otherwise, show them all. 1526 */ 1527 void 1528 status(const struct sockaddr_dl *sdl, prop_dictionary_t env, 1529 prop_dictionary_t oenv) 1530 { 1531 struct ifmediareq ifmr; 1532 struct ifdatareq ifdr; 1533 struct ifreq ifr; 1534 int *media_list, i; 1535 char hbuf[NI_MAXHOST]; 1536 char fbuf[BUFSIZ]; 1537 int af, s; 1538 const char *ifname; 1539 struct ifcapreq ifcr; 1540 unsigned short flags; 1541 const struct afswtch *afp; 1542 1543 if ((af = getaf(env)) == -1) { 1544 afp = NULL; 1545 af = AF_UNSPEC; 1546 } else 1547 afp = lookup_af_bynum(af); 1548 1549 /* get out early if the family is unsupported by the kernel */ 1550 if ((s = getsock(af)) == -1) 1551 err(EXIT_FAILURE, "%s: getsock", __func__); 1552 1553 if ((ifname = getifinfo(env, oenv, &flags)) == NULL) 1554 err(EXIT_FAILURE, "%s: getifinfo", __func__); 1555 1556 (void)snprintb(fbuf, sizeof(fbuf), IFFBITS, flags); 1557 printf("%s: flags=%s", ifname, &fbuf[2]); 1558 1559 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1560 if (ioctl(s, SIOCGIFMETRIC, &ifr) == -1) 1561 warn("SIOCGIFMETRIC %s", ifr.ifr_name); 1562 else if (ifr.ifr_metric != 0) 1563 printf(" metric %d", ifr.ifr_metric); 1564 1565 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1566 if (ioctl(s, SIOCGIFMTU, &ifr) != -1 && ifr.ifr_mtu != 0) 1567 printf(" mtu %d", ifr.ifr_mtu); 1568 printf("\n"); 1569 1570 if (getifcaps(env, oenv, &ifcr) == -1) 1571 err(EXIT_FAILURE, "%s: getifcaps", __func__); 1572 1573 if (ifcr.ifcr_capabilities != 0) { 1574 (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, 1575 ifcr.ifcr_capabilities); 1576 printf("\tcapabilities=%s\n", &fbuf[2]); 1577 (void)snprintb(fbuf, sizeof(fbuf), IFCAPBITS, 1578 ifcr.ifcr_capenable); 1579 printf("\tenabled=%s\n", &fbuf[2]); 1580 } 1581 1582 ieee80211_status(env, oenv); 1583 vlan_status(env, oenv); 1584 #ifndef INET_ONLY 1585 carp_status(env, oenv); 1586 #endif 1587 tunnel_status(env, oenv); 1588 agr_status(env, oenv); 1589 1590 if (sdl != NULL && 1591 getnameinfo((const struct sockaddr *)sdl, sdl->sdl_len, 1592 hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) == 0 && 1593 hbuf[0] != '\0') 1594 printf("\taddress: %s\n", hbuf); 1595 1596 (void) memset(&ifmr, 0, sizeof(ifmr)); 1597 estrlcpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name)); 1598 1599 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) { 1600 /* 1601 * Interface doesn't support SIOC{G,S}IFMEDIA. 1602 */ 1603 goto iface_stats; 1604 } 1605 1606 if (ifmr.ifm_count == 0) { 1607 warnx("%s: no media types?", ifname); 1608 goto iface_stats; 1609 } 1610 1611 media_list = (int *)malloc(ifmr.ifm_count * sizeof(int)); 1612 if (media_list == NULL) 1613 err(EXIT_FAILURE, "malloc"); 1614 ifmr.ifm_ulist = media_list; 1615 1616 if (ioctl(s, SIOCGIFMEDIA, &ifmr) == -1) 1617 err(EXIT_FAILURE, "SIOCGIFMEDIA"); 1618 1619 printf("\tmedia: %s ", get_media_type_string(ifmr.ifm_current)); 1620 print_media_word(ifmr.ifm_current, " "); 1621 if (ifmr.ifm_active != ifmr.ifm_current) { 1622 printf(" ("); 1623 print_media_word(ifmr.ifm_active, " "); 1624 printf(")"); 1625 } 1626 printf("\n"); 1627 1628 if (ifmr.ifm_status & IFM_STATUS_VALID) { 1629 const struct ifmedia_status_description *ifms; 1630 int bitno, found = 0; 1631 1632 printf("\tstatus: "); 1633 for (bitno = 0; ifm_status_valid_list[bitno] != 0; bitno++) { 1634 for (ifms = ifm_status_descriptions; 1635 ifms->ifms_valid != 0; ifms++) { 1636 if (ifms->ifms_type != 1637 IFM_TYPE(ifmr.ifm_current) || 1638 ifms->ifms_valid != 1639 ifm_status_valid_list[bitno]) 1640 continue; 1641 printf("%s%s", found ? ", " : "", 1642 IFM_STATUS_DESC(ifms, ifmr.ifm_status)); 1643 found = 1; 1644 1645 /* 1646 * For each valid indicator bit, there's 1647 * only one entry for each media type, so 1648 * terminate the inner loop now. 1649 */ 1650 break; 1651 } 1652 } 1653 1654 if (found == 0) 1655 printf("unknown"); 1656 printf("\n"); 1657 } 1658 1659 if (mflag) { 1660 int type, printed_type; 1661 1662 for (type = IFM_NMIN; type <= IFM_NMAX; type += IFM_NMIN) { 1663 for (i = 0, printed_type = 0; i < ifmr.ifm_count; i++) { 1664 if (IFM_TYPE(media_list[i]) != type) 1665 continue; 1666 if (printed_type == 0) { 1667 printf("\tsupported %s media:\n", 1668 get_media_type_string(type)); 1669 printed_type = 1; 1670 } 1671 printf("\t\tmedia "); 1672 print_media_word(media_list[i], " mediaopt "); 1673 printf("\n"); 1674 } 1675 } 1676 } 1677 1678 free(media_list); 1679 1680 iface_stats: 1681 if (!vflag && !zflag) 1682 goto proto_status; 1683 1684 estrlcpy(ifdr.ifdr_name, ifname, sizeof(ifdr.ifdr_name)); 1685 1686 if (ioctl(s, zflag ? SIOCZIFDATA:SIOCGIFDATA, &ifdr) == -1) { 1687 err(EXIT_FAILURE, zflag ? "SIOCZIFDATA" : "SIOCGIFDATA"); 1688 } else { 1689 struct if_data * const ifi = &ifdr.ifdr_data; 1690 char buf[5]; 1691 1692 #define PLURAL(n) ((n) == 1 ? "" : "s") 1693 #define PLURALSTR(s) ((atof(s)) == 1.0 ? "" : "s") 1694 printf("\tinput: %llu packet%s, ", 1695 (unsigned long long) ifi->ifi_ipackets, 1696 PLURAL(ifi->ifi_ipackets)); 1697 if (hflag) { 1698 (void) humanize_number(buf, sizeof(buf), 1699 (int64_t) ifi->ifi_ibytes, "", HN_AUTOSCALE, 1700 HN_NOSPACE | HN_DECIMAL); 1701 printf("%s byte%s", buf, 1702 PLURALSTR(buf)); 1703 } else 1704 printf("%llu byte%s", 1705 (unsigned long long) ifi->ifi_ibytes, 1706 PLURAL(ifi->ifi_ibytes)); 1707 if (ifi->ifi_imcasts) 1708 printf(", %llu multicast%s", 1709 (unsigned long long) ifi->ifi_imcasts, 1710 PLURAL(ifi->ifi_imcasts)); 1711 if (ifi->ifi_ierrors) 1712 printf(", %llu error%s", 1713 (unsigned long long) ifi->ifi_ierrors, 1714 PLURAL(ifi->ifi_ierrors)); 1715 if (ifi->ifi_iqdrops) 1716 printf(", %llu queue drop%s", 1717 (unsigned long long) ifi->ifi_iqdrops, 1718 PLURAL(ifi->ifi_iqdrops)); 1719 if (ifi->ifi_noproto) 1720 printf(", %llu unknown protocol", 1721 (unsigned long long) ifi->ifi_noproto); 1722 printf("\n\toutput: %llu packet%s, ", 1723 (unsigned long long) ifi->ifi_opackets, 1724 PLURAL(ifi->ifi_opackets)); 1725 if (hflag) { 1726 (void) humanize_number(buf, sizeof(buf), 1727 (int64_t) ifi->ifi_obytes, "", HN_AUTOSCALE, 1728 HN_NOSPACE | HN_DECIMAL); 1729 printf("%s byte%s", buf, 1730 PLURALSTR(buf)); 1731 } else 1732 printf("%llu byte%s", 1733 (unsigned long long) ifi->ifi_obytes, 1734 PLURAL(ifi->ifi_obytes)); 1735 if (ifi->ifi_omcasts) 1736 printf(", %llu multicast%s", 1737 (unsigned long long) ifi->ifi_omcasts, 1738 PLURAL(ifi->ifi_omcasts)); 1739 if (ifi->ifi_oerrors) 1740 printf(", %llu error%s", 1741 (unsigned long long) ifi->ifi_oerrors, 1742 PLURAL(ifi->ifi_oerrors)); 1743 if (ifi->ifi_collisions) 1744 printf(", %llu collision%s", 1745 (unsigned long long) ifi->ifi_collisions, 1746 PLURAL(ifi->ifi_collisions)); 1747 printf("\n"); 1748 #undef PLURAL 1749 #undef PLURALSTR 1750 } 1751 1752 ieee80211_statistics(env); 1753 1754 proto_status: 1755 1756 if (afp != NULL) 1757 (*afp->af_status)(env, oenv, true); 1758 else for (afp = afs; afp->af_name != NULL; afp++) 1759 (*afp->af_status)(env, oenv, false); 1760 } 1761 1762 int 1763 setifprefixlen(prop_dictionary_t env, prop_dictionary_t xenv) 1764 { 1765 const char *ifname; 1766 bool rc; 1767 int64_t plen; 1768 int af; 1769 const struct afswtch *afp; 1770 unsigned short flags; 1771 struct paddr_prefix *pfx; 1772 prop_data_t d; 1773 1774 if ((af = getaf(env)) == -1) 1775 af = AF_INET; 1776 1777 if ((afp = lookup_af_bynum(af)) == NULL) 1778 return -1; 1779 1780 if ((ifname = getifinfo(env, xenv, &flags)) == NULL) 1781 err(EXIT_FAILURE, "getifinfo"); 1782 1783 rc = prop_dictionary_get_int64(env, "prefixlen", &plen); 1784 assert(rc); 1785 1786 pfx = prefixlen_to_mask(af, plen); 1787 if (pfx == NULL) 1788 err(EXIT_FAILURE, "prefixlen_to_mask"); 1789 1790 d = prop_data_create_data(pfx, 1791 offsetof(struct paddr_prefix, pfx_addr) + pfx->pfx_addr.sa_len); 1792 if (d == NULL) 1793 err(EXIT_FAILURE, "%s: prop_data_create_data", __func__); 1794 1795 if (!prop_dictionary_set(xenv, "netmask", (prop_object_t)d)) 1796 err(EXIT_FAILURE, "%s: prop_dictionary_set", __func__); 1797 1798 if (afp->af_getaddr != NULL) 1799 (*afp->af_getaddr)(pfx, MASK); 1800 1801 free(pfx); 1802 return 0; 1803 } 1804 1805 void 1806 usage(void) 1807 { 1808 const char *progname = getprogname(); 1809 1810 fprintf(stderr, 1811 "usage: %s [-h] [-m] [-v] [-z] " 1812 #ifdef INET6 1813 "[-L] " 1814 #endif 1815 "interface\n" 1816 "\t[ af [ address [ dest_addr ] ] [ netmask mask ] [ prefixlen n ]\n" 1817 "\t\t[ alias | -alias ] ]\n" 1818 "\t[ up ] [ down ] [ metric n ] [ mtu n ]\n" 1819 "\t[ nwid network_id ] [ nwkey network_key | -nwkey ]\n" 1820 "\t[ list scan ]\n" 1821 "\t[ powersave | -powersave ] [ powersavesleep duration ]\n" 1822 "\t[ hidessid | -hidessid ] [ apbridge | -apbridge ]\n" 1823 "\t[ [ af ] tunnel src_addr dest_addr ] [ deletetunnel ]\n" 1824 "\t[ arp | -arp ]\n" 1825 "\t[ media type ] [ mediaopt opts ] [ -mediaopt opts ] " 1826 "[ instance minst ]\n" 1827 "\t[ preference n ]\n" 1828 "\t[ vlan n vlanif i ]\n" 1829 "\t[ agrport i ] [ -agrport i ]\n" 1830 "\t[ anycast | -anycast ] [ deprecated | -deprecated ]\n" 1831 "\t[ tentative | -tentative ] [ pltime n ] [ vltime n ] [ eui64 ]\n" 1832 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" 1833 " %s -a [-b] [-h] [-m] [-d] [-u] [-v] [-z] [ af ]\n" 1834 " %s -l [-b] [-d] [-u] [-s]\n" 1835 " %s -C\n" 1836 " %s interface create\n" 1837 " %s interface destroy\n", 1838 progname, progname, progname, progname, progname, progname); 1839 exit(EXIT_FAILURE); 1840 } 1841
Indexes created Wed Oct 29 20:09:47 GMT 2025