ifconfig.c revision 1.234
1 /* $NetBSD: ifconfig.c,v 1.234 2015/04/22 17:42:22 roy 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\ 65 The Regents of the University of California. All rights reserved."); 66 __RCSID("$NetBSD: ifconfig.c,v 1.234 2015/04/22 17:42:22 roy Exp $"); 67 #endif /* not lint */ 68 69 #include <sys/param.h> 70 #include <sys/queue.h> 71 #include <sys/socket.h> 72 #include <sys/ioctl.h> 73 74 #include <net/if.h> 75 #include <net/if_dl.h> 76 #include <net/if_media.h> 77 #include <net/if_ether.h> 78 #include <netinet/in.h> /* XXX */ 79 #include <netinet/in_var.h> /* XXX */ 80 81 #include <netdb.h> 82 83 #include <sys/protosw.h> 84 85 #include <assert.h> 86 #include <ctype.h> 87 #include <err.h> 88 #include <errno.h> 89 #include <stdbool.h> 90 #include <stddef.h> 91 #include <stdio.h> 92 #include <stdlib.h> 93 #include <string.h> 94 #include <unistd.h> 95 #include <ifaddrs.h> 96 #include <util.h> 97 98 #include "extern.h" 99 100 #include "media.h" 101 #include "parse.h" 102 #include "env.h" 103 #include "prog_ops.h" 104 105 #define WAIT_DAD 10000000 /* nanoseconds between each poll, 10ms */ 106 107 static bool bflag, dflag, hflag, sflag, uflag, wflag; 108 bool lflag, Nflag, vflag, zflag; 109 static long wflag_secs; 110 111 static char gflags[10 + 26 * 2 + 1] = "AabCdhlNsuvw:z"; 112 bool gflagset[10 + 26 * 2]; 113 114 static int carrier(prop_dictionary_t); 115 static int clone_command(prop_dictionary_t, prop_dictionary_t); 116 static void do_setifpreference(prop_dictionary_t); 117 static int flag_index(int); 118 static void init_afs(void); 119 static int list_cloners(prop_dictionary_t, prop_dictionary_t); 120 static int media_status_exec(prop_dictionary_t, prop_dictionary_t); 121 static int wait_dad_exec(prop_dictionary_t, prop_dictionary_t); 122 static int no_cmds_exec(prop_dictionary_t, prop_dictionary_t); 123 static int notrailers(prop_dictionary_t, prop_dictionary_t); 124 static void printall(const char *, prop_dictionary_t); 125 static int setifaddr(prop_dictionary_t, prop_dictionary_t); 126 static int setifbroadaddr(prop_dictionary_t, prop_dictionary_t); 127 static int setifcaps(prop_dictionary_t, prop_dictionary_t); 128 static int setifdstormask(prop_dictionary_t, prop_dictionary_t); 129 static int setifflags(prop_dictionary_t, prop_dictionary_t); 130 static int setifmetric(prop_dictionary_t, prop_dictionary_t); 131 static int setifmtu(prop_dictionary_t, prop_dictionary_t); 132 static int setifnetmask(prop_dictionary_t, prop_dictionary_t); 133 static int setifprefixlen(prop_dictionary_t, prop_dictionary_t); 134 static int setlinkstr(prop_dictionary_t, prop_dictionary_t); 135 static int unsetlinkstr(prop_dictionary_t, prop_dictionary_t); 136 static void status(const struct sockaddr *, prop_dictionary_t, 137 prop_dictionary_t); 138 __dead static void usage(void); 139 140 static const struct kwinst ifflagskw[] = { 141 IFKW("arp", -IFF_NOARP) 142 , IFKW("debug", IFF_DEBUG) 143 , IFKW("link0", IFF_LINK0) 144 , IFKW("link1", IFF_LINK1) 145 , IFKW("link2", IFF_LINK2) 146 , {.k_word = "down", .k_type = KW_T_INT, .k_int = -IFF_UP} 147 , {.k_word = "up", .k_type = KW_T_INT, .k_int = IFF_UP} 148 }; 149 150 static const struct kwinst ifcapskw[] = { 151 IFKW("ip4csum-tx", IFCAP_CSUM_IPv4_Tx) 152 , IFKW("ip4csum-rx", IFCAP_CSUM_IPv4_Rx) 153 , IFKW("tcp4csum-tx", IFCAP_CSUM_TCPv4_Tx) 154 , IFKW("tcp4csum-rx", IFCAP_CSUM_TCPv4_Rx) 155 , IFKW("udp4csum-tx", IFCAP_CSUM_UDPv4_Tx) 156 , IFKW("udp4csum-rx", IFCAP_CSUM_UDPv4_Rx) 157 , IFKW("tcp6csum-tx", IFCAP_CSUM_TCPv6_Tx) 158 , IFKW("tcp6csum-rx", IFCAP_CSUM_TCPv6_Rx) 159 , IFKW("udp6csum-tx", IFCAP_CSUM_UDPv6_Tx) 160 , IFKW("udp6csum-rx", IFCAP_CSUM_UDPv6_Rx) 161 , IFKW("ip4csum", IFCAP_CSUM_IPv4_Tx|IFCAP_CSUM_IPv4_Rx) 162 , IFKW("tcp4csum", IFCAP_CSUM_TCPv4_Tx|IFCAP_CSUM_TCPv4_Rx) 163 , IFKW("udp4csum", IFCAP_CSUM_UDPv4_Tx|IFCAP_CSUM_UDPv4_Rx) 164 , IFKW("tcp6csum", IFCAP_CSUM_TCPv6_Tx|IFCAP_CSUM_TCPv6_Rx) 165 , IFKW("udp6csum", IFCAP_CSUM_UDPv6_Tx|IFCAP_CSUM_UDPv6_Rx) 166 , IFKW("tso4", IFCAP_TSOv4) 167 , IFKW("tso6", IFCAP_TSOv6) 168 }; 169 170 extern struct pbranch command_root; 171 extern struct pbranch opt_command; 172 extern struct pbranch opt_family, opt_silent_family; 173 extern struct pkw cloning, silent_family, family, ifcaps, ifflags, misc; 174 extern struct pstr parse_linkstr; 175 176 struct pinteger parse_metric = PINTEGER_INITIALIZER(&parse_metric, "metric", 10, 177 setifmetric, "metric", &command_root.pb_parser); 178 179 struct pinteger parse_mtu = PINTEGER_INITIALIZER(&parse_mtu, "mtu", 10, 180 setifmtu, "mtu", &command_root.pb_parser); 181 182 struct pinteger parse_prefixlen = PINTEGER_INITIALIZER(&parse_prefixlen, 183 "prefixlen", 10, setifprefixlen, "prefixlen", &command_root.pb_parser); 184 185 struct pinteger parse_preference = PINTEGER_INITIALIZER1(&parse_preference, 186 "preference", INT16_MIN, INT16_MAX, 10, NULL, "preference", 187 &command_root.pb_parser); 188 189 struct paddr parse_netmask = PADDR_INITIALIZER(&parse_netmask, "netmask", 190 setifnetmask, "dstormask", NULL, NULL, NULL, &command_root.pb_parser); 191 192 struct paddr parse_broadcast = PADDR_INITIALIZER(&parse_broadcast, 193 "broadcast address", 194 setifbroadaddr, "broadcast", NULL, NULL, NULL, &command_root.pb_parser); 195 196 static const struct kwinst misckw[] = { 197 {.k_word = "alias", .k_key = "alias", .k_deact = "alias", 198 .k_type = KW_T_BOOL, .k_neg = true, 199 .k_bool = true, .k_negbool = false, 200 .k_nextparser = &command_root.pb_parser} 201 , {.k_word = "broadcast", .k_nextparser = &parse_broadcast.pa_parser} 202 , {.k_word = "delete", .k_key = "alias", .k_deact = "alias", 203 .k_type = KW_T_BOOL, .k_bool = false, 204 .k_nextparser = &command_root.pb_parser} 205 , {.k_word = "metric", .k_nextparser = &parse_metric.pi_parser} 206 , {.k_word = "mtu", .k_nextparser = &parse_mtu.pi_parser} 207 , {.k_word = "netmask", .k_nextparser = &parse_netmask.pa_parser} 208 , {.k_word = "preference", .k_act = "address", 209 .k_nextparser = &parse_preference.pi_parser} 210 , {.k_word = "prefixlen", .k_nextparser = &parse_prefixlen.pi_parser} 211 , {.k_word = "trailers", .k_neg = true, 212 .k_exec = notrailers, .k_nextparser = &command_root.pb_parser} 213 , {.k_word = "linkstr", .k_nextparser = &parse_linkstr.ps_parser } 214 , {.k_word = "-linkstr", .k_exec = unsetlinkstr, 215 .k_nextparser = &command_root.pb_parser } 216 }; 217 218 /* key: clonecmd */ 219 static const struct kwinst clonekw[] = { 220 {.k_word = "create", .k_type = KW_T_INT, .k_int = SIOCIFCREATE, 221 .k_nextparser = &opt_silent_family.pb_parser}, 222 {.k_word = "destroy", .k_type = KW_T_INT, .k_int = SIOCIFDESTROY} 223 }; 224 225 static struct kwinst familykw[24]; 226 227 struct pterm cloneterm = PTERM_INITIALIZER(&cloneterm, "list cloners", 228 list_cloners, "none"); 229 230 struct pterm wait_dad = PTERM_INITIALIZER(&wait_dad, "wait DAD", wait_dad_exec, 231 "none"); 232 233 struct pterm no_cmds = PTERM_INITIALIZER(&no_cmds, "no commands", no_cmds_exec, 234 "none"); 235 236 struct pkw family_only = 237 PKW_INITIALIZER(&family_only, "family-only", NULL, "af", familykw, 238 __arraycount(familykw), &no_cmds.pt_parser); 239 240 struct paddr address = PADDR_INITIALIZER(&address, 241 "local address (address 1)", 242 setifaddr, "address", "netmask", NULL, "address", &command_root.pb_parser); 243 244 struct paddr dstormask = PADDR_INITIALIZER(&dstormask, 245 "destination/netmask (address 2)", 246 setifdstormask, "dstormask", NULL, "address", "dstormask", 247 &command_root.pb_parser); 248 249 struct paddr broadcast = PADDR_INITIALIZER(&broadcast, 250 "broadcast address (address 3)", 251 setifbroadaddr, "broadcast", NULL, "dstormask", "broadcast", 252 &command_root.pb_parser); 253 254 struct pstr parse_linkstr = PSTR_INITIALIZER(&parse_linkstr, "linkstr", 255 setlinkstr, "linkstr", &command_root.pb_parser); 256 257 static SIMPLEQ_HEAD(, afswtch) aflist = SIMPLEQ_HEAD_INITIALIZER(aflist); 258 259 static SIMPLEQ_HEAD(, usage_func) usage_funcs = 260 SIMPLEQ_HEAD_INITIALIZER(usage_funcs); 261 static SIMPLEQ_HEAD(, status_func) status_funcs = 262 SIMPLEQ_HEAD_INITIALIZER(status_funcs); 263 static SIMPLEQ_HEAD(, statistics_func) statistics_funcs = 264 SIMPLEQ_HEAD_INITIALIZER(statistics_funcs); 265 static SIMPLEQ_HEAD(, cmdloop_branch) cmdloop_branches = 266 SIMPLEQ_HEAD_INITIALIZER(cmdloop_branches); 267 268 struct branch opt_clone_brs[] = { 269 {.b_nextparser = &cloning.pk_parser} 270 , {.b_nextparser = &opt_family.pb_parser} 271 }, opt_silent_family_brs[] = { 272 {.b_nextparser = &silent_family.pk_parser} 273 , {.b_nextparser = &command_root.pb_parser} 274 }, opt_family_brs[] = { 275 {.b_nextparser = &family.pk_parser} 276 , {.b_nextparser = &opt_command.pb_parser} 277 }, command_root_brs[] = { 278 {.b_nextparser = &ifflags.pk_parser} 279 , {.b_nextparser = &ifcaps.pk_parser} 280 , {.b_nextparser = &kwmedia.pk_parser} 281 , {.b_nextparser = &misc.pk_parser} 282 , {.b_nextparser = &address.pa_parser} 283 , {.b_nextparser = &dstormask.pa_parser} 284 , {.b_nextparser = &broadcast.pa_parser} 285 , {.b_nextparser = NULL} 286 }, opt_command_brs[] = { 287 {.b_nextparser = &no_cmds.pt_parser} 288 , {.b_nextparser = &command_root.pb_parser} 289 }; 290 291 struct branch opt_family_only_brs[] = { 292 {.b_nextparser = &no_cmds.pt_parser} 293 , {.b_nextparser = &family_only.pk_parser} 294 }; 295 struct pbranch opt_family_only = PBRANCH_INITIALIZER(&opt_family_only, 296 "opt-family-only", opt_family_only_brs, 297 __arraycount(opt_family_only_brs), true); 298 struct pbranch opt_command = PBRANCH_INITIALIZER(&opt_command, 299 "optional command", 300 opt_command_brs, __arraycount(opt_command_brs), true); 301 302 struct pbranch command_root = PBRANCH_INITIALIZER(&command_root, 303 "command-root", command_root_brs, __arraycount(command_root_brs), true); 304 305 struct piface iface_opt_family_only = 306 PIFACE_INITIALIZER(&iface_opt_family_only, "iface-opt-family-only", 307 NULL, "if", &opt_family_only.pb_parser); 308 309 struct pkw family = PKW_INITIALIZER(&family, "family", NULL, "af", 310 familykw, __arraycount(familykw), &opt_command.pb_parser); 311 312 struct pkw silent_family = PKW_INITIALIZER(&silent_family, "silent family", 313 NULL, "af", familykw, __arraycount(familykw), &command_root.pb_parser); 314 315 struct pkw *family_users[] = {&family_only, &family, &silent_family}; 316 317 struct pkw ifcaps = PKW_INITIALIZER(&ifcaps, "ifcaps", setifcaps, 318 "ifcap", ifcapskw, __arraycount(ifcapskw), &command_root.pb_parser); 319 320 struct pkw ifflags = PKW_INITIALIZER(&ifflags, "ifflags", setifflags, 321 "ifflag", ifflagskw, __arraycount(ifflagskw), &command_root.pb_parser); 322 323 struct pkw cloning = PKW_INITIALIZER(&cloning, "cloning", clone_command, 324 "clonecmd", clonekw, __arraycount(clonekw), NULL); 325 326 struct pkw misc = PKW_INITIALIZER(&misc, "misc", NULL, NULL, 327 misckw, __arraycount(misckw), NULL); 328 329 struct pbranch opt_clone = PBRANCH_INITIALIZER(&opt_clone, 330 "opt-clone", opt_clone_brs, __arraycount(opt_clone_brs), true); 331 332 struct pbranch opt_silent_family = PBRANCH_INITIALIZER(&opt_silent_family, 333 "optional silent family", opt_silent_family_brs, 334 __arraycount(opt_silent_family_brs), true); 335 336 struct pbranch opt_family = PBRANCH_INITIALIZER(&opt_family, 337 "opt-family", opt_family_brs, __arraycount(opt_family_brs), true); 338 339 struct piface iface_start = PIFACE_INITIALIZER(&iface_start, 340 "iface-opt-family", NULL, "if", &opt_clone.pb_parser); 341 342 struct piface iface_only = PIFACE_INITIALIZER(&iface_only, "iface", 343 media_status_exec, "if", NULL); 344 345 static bool 346 flag_is_registered(const char *flags, int flag) 347 { 348 return flags != NULL && strchr(flags, flag) != NULL; 349 } 350 351 static int 352 check_flag(const char *flags, int flag) 353 { 354 if (flag_is_registered(flags, flag)) { 355 errno = EEXIST; 356 return -1; 357 } 358 359 if (flag >= '0' && flag <= '9') 360 return 0; 361 if (flag >= 'a' && flag <= 'z') 362 return 0; 363 if (flag >= 'A' && flag <= 'Z') 364 return 0; 365 366 errno = EINVAL; 367 return -1; 368 } 369 370 void 371 cmdloop_branch_init(cmdloop_branch_t *b, struct parser *p) 372 { 373 b->b_parser = p; 374 } 375 376 void 377 statistics_func_init(statistics_func_t *f, statistics_cb_t func) 378 { 379 f->f_func = func; 380 } 381 382 void 383 status_func_init(status_func_t *f, status_cb_t func) 384 { 385 f->f_func = func; 386 } 387 388 void 389 usage_func_init(usage_func_t *f, usage_cb_t func) 390 { 391 f->f_func = func; 392 } 393 394 int 395 register_cmdloop_branch(cmdloop_branch_t *b) 396 { 397 SIMPLEQ_INSERT_TAIL(&cmdloop_branches, b, b_next); 398 return 0; 399 } 400 401 int 402 register_statistics(statistics_func_t *f) 403 { 404 SIMPLEQ_INSERT_TAIL(&statistics_funcs, f, f_next); 405 return 0; 406 } 407 408 int 409 register_status(status_func_t *f) 410 { 411 SIMPLEQ_INSERT_TAIL(&status_funcs, f, f_next); 412 return 0; 413 } 414 415 int 416 register_usage(usage_func_t *f) 417 { 418 SIMPLEQ_INSERT_TAIL(&usage_funcs, f, f_next); 419 return 0; 420 } 421 422 int 423 register_family(struct afswtch *af) 424 { 425 SIMPLEQ_INSERT_TAIL(&aflist, af, af_next); 426 return 0; 427 } 428 429 int 430 register_flag(int flag) 431 { 432 if (check_flag(gflags, flag) == -1) 433 return -1; 434 435 if (strlen(gflags) + 1 >= sizeof(gflags)) { 436 errno = ENOMEM; 437 return -1; 438 } 439 440 gflags[strlen(gflags)] = flag; 441 442 return 0; 443 } 444 445 static int 446 flag_index(int flag) 447 { 448 if (flag >= '0' && flag <= '9') 449 return flag - '0'; 450 if (flag >= 'a' && flag <= 'z') 451 return 10 + flag - 'a'; 452 if (flag >= 'A' && flag <= 'Z') 453 return 10 + 26 + flag - 'a'; 454 455 errno = EINVAL; 456 return -1; 457 } 458 459 static bool 460 set_flag(int flag) 461 { 462 int idx; 463 464 if ((idx = flag_index(flag)) == -1) 465 return false; 466 467 return gflagset[idx] = true; 468 } 469 470 bool 471 get_flag(int flag) 472 { 473 int idx; 474 475 if ((idx = flag_index(flag)) == -1) 476 return false; 477 478 return gflagset[idx]; 479 } 480 481 static struct parser * 482 init_parser(void) 483 { 484 cmdloop_branch_t *b; 485 486 if (parser_init(&iface_opt_family_only.pif_parser) == -1) 487 err(EXIT_FAILURE, "parser_init(iface_opt_family_only)"); 488 if (parser_init(&iface_only.pif_parser) == -1) 489 err(EXIT_FAILURE, "parser_init(iface_only)"); 490 if (parser_init(&iface_start.pif_parser) == -1) 491 err(EXIT_FAILURE, "parser_init(iface_start)"); 492 493 SIMPLEQ_FOREACH(b, &cmdloop_branches, b_next) 494 pbranch_addbranch(&command_root, b->b_parser); 495 496 return &iface_start.pif_parser; 497 } 498 499 static int 500 no_cmds_exec(prop_dictionary_t env, prop_dictionary_t oenv) 501 { 502 const char *ifname; 503 unsigned short ignore; 504 505 /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ 506 if ((ifname = getifname(env)) == NULL) 507 ; 508 else if (getifflags(env, oenv, &ignore) == -1) 509 err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); 510 511 printall(ifname, env); 512 exit(EXIT_SUCCESS); 513 } 514 515 static int 516 wait_dad_exec(prop_dictionary_t env, prop_dictionary_t oenv) 517 { 518 bool waiting; 519 struct ifaddrs *ifaddrs, *ifa; 520 const struct timespec ts = { .tv_sec = 0, .tv_nsec = WAIT_DAD }; 521 const struct timespec add = { .tv_sec = wflag_secs, .tv_nsec = 0}; 522 struct timespec now, end = { .tv_sec = wflag_secs, .tv_nsec = 0}; 523 const struct afswtch *afp; 524 525 if (wflag_secs) { 526 if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) 527 err(EXIT_FAILURE, "clock_gettime"); 528 timespecadd(&now, &add, &end); 529 } 530 531 if (getifaddrs(&ifaddrs) == -1) 532 err(EXIT_FAILURE, "getifaddrs"); 533 534 for (;;) { 535 waiting = false; 536 for (ifa = ifaddrs; ifa; ifa = ifa->ifa_next) { 537 if (ifa->ifa_addr == NULL) 538 continue; 539 afp = lookup_af_bynum(ifa->ifa_addr->sa_family); 540 if (afp && afp->af_addr_tentative && 541 afp->af_addr_tentative(ifa)) 542 { 543 waiting = true; 544 break; 545 } 546 } 547 if (!waiting) 548 break; 549 nanosleep(&ts, NULL); 550 if (wflag_secs) { 551 if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) 552 err(EXIT_FAILURE, "clock_gettime"); 553 if (timespeccmp(&now, &end, >)) 554 errx(EXIT_FAILURE, "timed out"); 555 } 556 } 557 558 freeifaddrs(ifaddrs); 559 exit(EXIT_SUCCESS); 560 } 561 562 static int 563 media_status_exec(prop_dictionary_t env, prop_dictionary_t oenv) 564 { 565 const char *ifname; 566 unsigned short ignore; 567 568 /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ 569 if ((ifname = getifname(env)) == NULL) 570 ; 571 else if (getifflags(env, oenv, &ignore) == -1) 572 err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); 573 574 exit(carrier(env)); 575 } 576 577 static void 578 do_setifcaps(prop_dictionary_t env) 579 { 580 struct ifcapreq ifcr; 581 prop_data_t d; 582 583 d = (prop_data_t )prop_dictionary_get(env, "ifcaps"); 584 if (d == NULL) 585 return; 586 587 assert(sizeof(ifcr) == prop_data_size(d)); 588 589 memcpy(&ifcr, prop_data_data_nocopy(d), sizeof(ifcr)); 590 if (direct_ioctl(env, SIOCSIFCAP, &ifcr) == -1) 591 err(EXIT_FAILURE, "SIOCSIFCAP"); 592 } 593 594 int 595 main(int argc, char **argv) 596 { 597 const struct afswtch *afp; 598 int af, s; 599 bool aflag = false, Cflag = false; 600 struct match match[32]; 601 size_t nmatch; 602 struct parser *start; 603 int ch, narg = 0, rc; 604 prop_dictionary_t env, oenv; 605 const char *ifname; 606 char *end; 607 608 memset(match, 0, sizeof(match)); 609 610 init_afs(); 611 612 start = init_parser(); 613 614 /* Parse command-line options */ 615 Nflag = vflag = zflag = false; 616 aflag = argc == 1 ? true : false; 617 if (aflag) 618 start = &opt_family_only.pb_parser; 619 620 while ((ch = getopt(argc, argv, gflags)) != -1) { 621 switch (ch) { 622 case 'A': 623 warnx("-A is deprecated"); 624 break; 625 626 case 'a': 627 aflag = true; 628 break; 629 630 case 'b': 631 bflag = true; 632 break; 633 634 case 'C': 635 Cflag = true; 636 break; 637 638 case 'd': 639 dflag = true; 640 break; 641 case 'h': 642 hflag = true; 643 break; 644 case 'l': 645 lflag = true; 646 break; 647 case 'N': 648 Nflag = true; 649 break; 650 651 case 's': 652 sflag = true; 653 break; 654 655 case 'u': 656 uflag = true; 657 break; 658 659 case 'v': 660 vflag = true; 661 break; 662 663 case 'w': 664 wflag = true; 665 wflag_secs = strtol(optarg, &end, 10); 666 if ((end != NULL && *end != '\0') || 667 wflag_secs < 0 || wflag_secs >= INT32_MAX) 668 errx(EXIT_FAILURE, "%s: not a number", optarg); 669 break; 670 671 case 'z': 672 zflag = true; 673 break; 674 675 default: 676 if (!set_flag(ch)) 677 usage(); 678 break; 679 } 680 switch (ch) { 681 case 'a': 682 start = &opt_family_only.pb_parser; 683 break; 684 685 case 'L': 686 case 'm': 687 case 'z': 688 if (start != &opt_family_only.pb_parser) 689 start = &iface_opt_family_only.pif_parser; 690 break; 691 case 'C': 692 start = &cloneterm.pt_parser; 693 break; 694 case 'l': 695 start = &no_cmds.pt_parser; 696 break; 697 case 's': 698 if (start != &no_cmds.pt_parser && 699 start != &opt_family_only.pb_parser) 700 start = &iface_only.pif_parser; 701 break; 702 case 'w': 703 start = &wait_dad.pt_parser; 704 break; 705 default: 706 break; 707 } 708 } 709 argc -= optind; 710 argv += optind; 711 712 /* 713 * -l means "list all interfaces", and is mutually exclusive with 714 * all other flags/commands. 715 * 716 * -C means "list all names of cloners", and it mutually exclusive 717 * with all other flags/commands. 718 * 719 * -a means "print status of all interfaces". 720 * 721 * -w means "spin until DAD completes for all addreseses", and is 722 * mutually exclusivewith all other flags/commands. 723 */ 724 if ((lflag || Cflag || wflag) && 725 (aflag || get_flag('m') || vflag || zflag)) 726 usage(); 727 if ((lflag || Cflag || wflag) && get_flag('L')) 728 usage(); 729 if ((lflag && Cflag) || (lflag & wflag) || (Cflag && wflag)) 730 usage(); 731 732 nmatch = __arraycount(match); 733 734 rc = parse(argc, argv, start, match, &nmatch, &narg); 735 if (rc != 0) 736 usage(); 737 738 if (prog_init && prog_init() == -1) 739 err(1, "rump client init"); 740 741 if ((oenv = prop_dictionary_create()) == NULL) 742 err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); 743 744 if (matches_exec(match, oenv, nmatch) == -1) 745 err(EXIT_FAILURE, "exec_matches"); 746 747 argc -= narg; 748 argv += narg; 749 750 env = (nmatch > 0) ? match[(int)nmatch - 1].m_env : NULL; 751 if (env == NULL) 752 env = oenv; 753 else { 754 env = prop_dictionary_augment(env, oenv); 755 if (env == NULL) 756 err(EXIT_FAILURE, "%s: prop_dictionary_augment", 757 __func__); 758 } 759 760 /* Process any media commands that may have been issued. */ 761 process_media_commands(env); 762 763 if ((af = getaf(env)) == -1) 764 af = AF_INET; 765 766 if ((s = getsock(af)) == -1) 767 err(EXIT_FAILURE, "%s: getsock", __func__); 768 769 if ((ifname = getifname(env)) == NULL) 770 err(EXIT_FAILURE, "%s: getifname", __func__); 771 772 if ((afp = lookup_af_bynum(af)) == NULL) 773 errx(EXIT_FAILURE, "%s: lookup_af_bynum", __func__); 774 775 assert(afp->af_addr_commit != NULL); 776 (*afp->af_addr_commit)(env, oenv); 777 778 do_setifpreference(env); 779 do_setifcaps(env); 780 781 exit(EXIT_SUCCESS); 782 } 783 784 static void 785 init_afs(void) 786 { 787 size_t i; 788 const struct afswtch *afp; 789 struct kwinst kw = {.k_type = KW_T_INT}; 790 791 SIMPLEQ_FOREACH(afp, &aflist, af_next) { 792 kw.k_word = afp->af_name; 793 kw.k_int = afp->af_af; 794 for (i = 0; i < __arraycount(familykw); i++) { 795 if (familykw[i].k_word == NULL) { 796 familykw[i] = kw; 797 break; 798 } 799 } 800 } 801 } 802 803 const struct afswtch * 804 lookup_af_bynum(int afnum) 805 { 806 const struct afswtch *afp; 807 808 SIMPLEQ_FOREACH(afp, &aflist, af_next) { 809 if (afp->af_af == afnum) 810 break; 811 } 812 return afp; 813 } 814 815 void 816 printall(const char *ifname, prop_dictionary_t env0) 817 { 818 struct ifaddrs *ifap, *ifa; 819 struct ifreq ifr; 820 const struct sockaddr *sdl = NULL; 821 prop_dictionary_t env, oenv; 822 int idx; 823 char *p; 824 825 if (env0 == NULL) 826 env = prop_dictionary_create(); 827 else 828 env = prop_dictionary_copy_mutable(env0); 829 830 oenv = prop_dictionary_create(); 831 832 if (env == NULL || oenv == NULL) 833 errx(EXIT_FAILURE, "%s: prop_dictionary_copy/create", __func__); 834 835 if (getifaddrs(&ifap) != 0) 836 err(EXIT_FAILURE, "getifaddrs"); 837 p = NULL; 838 idx = 0; 839 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 840 memset(&ifr, 0, sizeof(ifr)); 841 estrlcpy(ifr.ifr_name, ifa->ifa_name, sizeof(ifr.ifr_name)); 842 if (sizeof(ifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 843 memcpy(&ifr.ifr_addr, ifa->ifa_addr, 844 ifa->ifa_addr->sa_len); 845 } 846 847 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0) 848 continue; 849 if (ifa->ifa_addr->sa_family == AF_LINK) 850 sdl = ifa->ifa_addr; 851 if (p && strcmp(p, ifa->ifa_name) == 0) 852 continue; 853 if (!prop_dictionary_set_cstring(env, "if", ifa->ifa_name)) 854 continue; 855 p = ifa->ifa_name; 856 857 if (bflag && (ifa->ifa_flags & IFF_BROADCAST) == 0) 858 continue; 859 if (dflag && (ifa->ifa_flags & IFF_UP) != 0) 860 continue; 861 if (uflag && (ifa->ifa_flags & IFF_UP) == 0) 862 continue; 863 864 if (sflag && carrier(env)) 865 continue; 866 idx++; 867 /* 868 * Are we just listing the interfaces? 869 */ 870 if (lflag) { 871 if (idx > 1) 872 printf(" "); 873 fputs(ifa->ifa_name, stdout); 874 continue; 875 } 876 877 status(sdl, env, oenv); 878 sdl = NULL; 879 } 880 if (lflag) 881 printf("\n"); 882 prop_object_release((prop_object_t)env); 883 prop_object_release((prop_object_t)oenv); 884 freeifaddrs(ifap); 885 } 886 887 static int 888 list_cloners(prop_dictionary_t env, prop_dictionary_t oenv) 889 { 890 struct if_clonereq ifcr; 891 char *cp, *buf; 892 int idx, s; 893 894 memset(&ifcr, 0, sizeof(ifcr)); 895 896 s = getsock(AF_INET); 897 898 if (prog_ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 899 err(EXIT_FAILURE, "SIOCIFGCLONERS for count"); 900 901 buf = malloc(ifcr.ifcr_total * IFNAMSIZ); 902 if (buf == NULL) 903 err(EXIT_FAILURE, "unable to allocate cloner name buffer"); 904 905 ifcr.ifcr_count = ifcr.ifcr_total; 906 ifcr.ifcr_buffer = buf; 907 908 if (prog_ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 909 err(EXIT_FAILURE, "SIOCIFGCLONERS for names"); 910 911 /* 912 * In case some disappeared in the mean time, clamp it down. 913 */ 914 if (ifcr.ifcr_count > ifcr.ifcr_total) 915 ifcr.ifcr_count = ifcr.ifcr_total; 916 917 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { 918 if (idx > 0) 919 printf(" "); 920 printf("%s", cp); 921 } 922 923 printf("\n"); 924 free(buf); 925 exit(EXIT_SUCCESS); 926 } 927 928 static int 929 clone_command(prop_dictionary_t env, prop_dictionary_t oenv) 930 { 931 int64_t cmd; 932 933 if (!prop_dictionary_get_int64(env, "clonecmd", &cmd)) { 934 errno = ENOENT; 935 return -1; 936 } 937 938 if (indirect_ioctl(env, (unsigned long)cmd, NULL) == -1) { 939 warn("%s", __func__); 940 return -1; 941 } 942 return 0; 943 } 944 945 /*ARGSUSED*/ 946 static int 947 setifaddr(prop_dictionary_t env, prop_dictionary_t oenv) 948 { 949 const struct paddr_prefix *pfx0; 950 struct paddr_prefix *pfx; 951 prop_data_t d; 952 int af; 953 954 if ((af = getaf(env)) == -1) 955 af = AF_INET; 956 957 d = (prop_data_t)prop_dictionary_get(env, "address"); 958 assert(d != NULL); 959 pfx0 = prop_data_data_nocopy(d); 960 961 if (pfx0->pfx_len >= 0) { 962 pfx = prefixlen_to_mask(af, pfx0->pfx_len); 963 if (pfx == NULL) 964 err(EXIT_FAILURE, "prefixlen_to_mask"); 965 free(pfx); 966 } 967 968 return 0; 969 } 970 971 static int 972 setifnetmask(prop_dictionary_t env, prop_dictionary_t oenv) 973 { 974 prop_data_t d; 975 976 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 977 assert(d != NULL); 978 979 if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) 980 return -1; 981 982 return 0; 983 } 984 985 static int 986 setifbroadaddr(prop_dictionary_t env, prop_dictionary_t oenv) 987 { 988 prop_data_t d; 989 unsigned short flags; 990 991 if (getifflags(env, oenv, &flags) == -1) 992 err(EXIT_FAILURE, "%s: getifflags", __func__); 993 994 if ((flags & IFF_BROADCAST) == 0) 995 errx(EXIT_FAILURE, "not a broadcast interface"); 996 997 d = (prop_data_t)prop_dictionary_get(env, "broadcast"); 998 assert(d != NULL); 999 1000 if (!prop_dictionary_set(oenv, "broadcast", (prop_object_t)d)) 1001 return -1; 1002 1003 return 0; 1004 } 1005 1006 /*ARGSUSED*/ 1007 static int 1008 notrailers(prop_dictionary_t env, prop_dictionary_t oenv) 1009 { 1010 puts("Note: trailers are no longer sent, but always received"); 1011 return 0; 1012 } 1013 1014 /*ARGSUSED*/ 1015 static int 1016 setifdstormask(prop_dictionary_t env, prop_dictionary_t oenv) 1017 { 1018 const char *key; 1019 prop_data_t d; 1020 unsigned short flags; 1021 1022 if (getifflags(env, oenv, &flags) == -1) 1023 err(EXIT_FAILURE, "%s: getifflags", __func__); 1024 1025 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 1026 assert(d != NULL); 1027 1028 if ((flags & IFF_BROADCAST) == 0) { 1029 key = "dst"; 1030 } else { 1031 key = "netmask"; 1032 } 1033 1034 if (!prop_dictionary_set(oenv, key, (prop_object_t)d)) 1035 return -1; 1036 1037 return 0; 1038 } 1039 1040 static int 1041 setifflags(prop_dictionary_t env, prop_dictionary_t oenv) 1042 { 1043 struct ifreq ifr; 1044 int64_t ifflag; 1045 bool rc; 1046 1047 rc = prop_dictionary_get_int64(env, "ifflag", &ifflag); 1048 assert(rc); 1049 1050 if (direct_ioctl(env, SIOCGIFFLAGS, &ifr) == -1) 1051 return -1; 1052 1053 if (ifflag < 0) { 1054 ifflag = -ifflag; 1055 ifr.ifr_flags &= ~ifflag; 1056 } else 1057 ifr.ifr_flags |= ifflag; 1058 1059 if (direct_ioctl(env, SIOCSIFFLAGS, &ifr) == -1) 1060 return -1; 1061 1062 return 0; 1063 } 1064 1065 static int 1066 getifcaps(prop_dictionary_t env, prop_dictionary_t oenv, struct ifcapreq *oifcr) 1067 { 1068 bool rc; 1069 struct ifcapreq ifcr; 1070 const struct ifcapreq *tmpifcr; 1071 prop_data_t capdata; 1072 1073 capdata = (prop_data_t)prop_dictionary_get(env, "ifcaps"); 1074 1075 if (capdata != NULL) { 1076 tmpifcr = prop_data_data_nocopy(capdata); 1077 *oifcr = *tmpifcr; 1078 return 0; 1079 } 1080 1081 (void)direct_ioctl(env, SIOCGIFCAP, &ifcr); 1082 *oifcr = ifcr; 1083 1084 capdata = prop_data_create_data(&ifcr, sizeof(ifcr)); 1085 1086 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1087 1088 prop_object_release((prop_object_t)capdata); 1089 1090 return rc ? 0 : -1; 1091 } 1092 1093 static int 1094 setifcaps(prop_dictionary_t env, prop_dictionary_t oenv) 1095 { 1096 int64_t ifcap; 1097 bool rc; 1098 prop_data_t capdata; 1099 struct ifcapreq ifcr; 1100 1101 rc = prop_dictionary_get_int64(env, "ifcap", &ifcap); 1102 assert(rc); 1103 1104 if (getifcaps(env, oenv, &ifcr) == -1) 1105 return -1; 1106 1107 if (ifcap < 0) { 1108 ifcap = -ifcap; 1109 ifcr.ifcr_capenable &= ~ifcap; 1110 } else 1111 ifcr.ifcr_capenable |= ifcap; 1112 1113 if ((capdata = prop_data_create_data(&ifcr, sizeof(ifcr))) == NULL) 1114 return -1; 1115 1116 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1117 prop_object_release((prop_object_t)capdata); 1118 1119 return rc ? 0 : -1; 1120 } 1121 1122 static int 1123 setifmetric(prop_dictionary_t env, prop_dictionary_t oenv) 1124 { 1125 struct ifreq ifr; 1126 bool rc; 1127 int64_t metric; 1128 1129 rc = prop_dictionary_get_int64(env, "metric", &metric); 1130 assert(rc); 1131 1132 ifr.ifr_metric = metric; 1133 if (direct_ioctl(env, SIOCSIFMETRIC, &ifr) == -1) 1134 warn("SIOCSIFMETRIC"); 1135 return 0; 1136 } 1137 1138 static void 1139 do_setifpreference(prop_dictionary_t env) 1140 { 1141 struct if_addrprefreq ifap; 1142 prop_data_t d; 1143 const struct paddr_prefix *pfx; 1144 1145 memset(&ifap, 0, sizeof(ifap)); 1146 1147 if (!prop_dictionary_get_int16(env, "preference", 1148 &ifap.ifap_preference)) 1149 return; 1150 1151 d = (prop_data_t)prop_dictionary_get(env, "address"); 1152 assert(d != NULL); 1153 1154 pfx = prop_data_data_nocopy(d); 1155 1156 memcpy(&ifap.ifap_addr, &pfx->pfx_addr, 1157 MIN(sizeof(ifap.ifap_addr), pfx->pfx_addr.sa_len)); 1158 if (direct_ioctl(env, SIOCSIFADDRPREF, &ifap) == -1) 1159 warn("SIOCSIFADDRPREF"); 1160 } 1161 1162 static int 1163 setifmtu(prop_dictionary_t env, prop_dictionary_t oenv) 1164 { 1165 int64_t mtu; 1166 bool rc; 1167 struct ifreq ifr; 1168 1169 rc = prop_dictionary_get_int64(env, "mtu", &mtu); 1170 assert(rc); 1171 1172 ifr.ifr_mtu = mtu; 1173 if (direct_ioctl(env, SIOCSIFMTU, &ifr) == -1) 1174 warn("SIOCSIFMTU"); 1175 1176 return 0; 1177 } 1178 1179 static int 1180 carrier(prop_dictionary_t env) 1181 { 1182 struct ifmediareq ifmr; 1183 1184 memset(&ifmr, 0, sizeof(ifmr)); 1185 1186 if (direct_ioctl(env, SIOCGIFMEDIA, &ifmr) == -1) { 1187 /* 1188 * Interface doesn't support SIOC{G,S}IFMEDIA; 1189 * assume ok. 1190 */ 1191 return EXIT_SUCCESS; 1192 } 1193 if ((ifmr.ifm_status & IFM_AVALID) == 0) { 1194 /* 1195 * Interface doesn't report media-valid status. 1196 * assume ok. 1197 */ 1198 return EXIT_SUCCESS; 1199 } 1200 /* otherwise, return ok for active, not-ok if not active. */ 1201 if (ifmr.ifm_status & IFM_ACTIVE) 1202 return EXIT_SUCCESS; 1203 else 1204 return EXIT_FAILURE; 1205 } 1206 1207 static void 1208 print_plural(const char *prefix, uint64_t n, const char *unit) 1209 { 1210 printf("%s%" PRIu64 " %s%s", prefix, n, unit, (n == 1) ? "" : "s"); 1211 } 1212 1213 static void 1214 print_human_bytes(bool humanize, uint64_t n) 1215 { 1216 char buf[5]; 1217 1218 if (humanize) { 1219 (void)humanize_number(buf, sizeof(buf), 1220 (int64_t)n, "", HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL); 1221 printf(", %s byte%s", buf, (atof(buf) == 1.0) ? "" : "s"); 1222 } else 1223 print_plural(", ", n, "byte"); 1224 } 1225 1226 /* 1227 * Print the status of the interface. If an address family was 1228 * specified, show it and it only; otherwise, show them all. 1229 */ 1230 1231 #define MAX_PRINT_LEN 58 /* XXX need a better way to determine this! */ 1232 1233 void 1234 status(const struct sockaddr *sdl, prop_dictionary_t env, 1235 prop_dictionary_t oenv) 1236 { 1237 const struct if_data *ifi; 1238 status_func_t *status_f; 1239 statistics_func_t *statistics_f; 1240 struct ifdatareq ifdr; 1241 struct ifreq ifr; 1242 struct ifdrv ifdrv; 1243 char fbuf[BUFSIZ]; 1244 char *bp; 1245 int af, s; 1246 const char *ifname; 1247 struct ifcapreq ifcr; 1248 unsigned short flags; 1249 const struct afswtch *afp; 1250 1251 if ((af = getaf(env)) == -1) { 1252 afp = NULL; 1253 af = AF_UNSPEC; 1254 } else 1255 afp = lookup_af_bynum(af); 1256 1257 /* get out early if the family is unsupported by the kernel */ 1258 if ((s = getsock(af)) == -1) 1259 err(EXIT_FAILURE, "%s: getsock", __func__); 1260 1261 if ((ifname = getifinfo(env, oenv, &flags)) == NULL) 1262 err(EXIT_FAILURE, "%s: getifinfo", __func__); 1263 1264 (void)snprintb_m(fbuf, sizeof(fbuf), IFFBITS, flags, MAX_PRINT_LEN); 1265 bp = fbuf; 1266 while (*bp != '\0') { 1267 printf("%s: flags=%s", ifname, &bp[2]); 1268 bp += strlen(bp) + 1; 1269 } 1270 1271 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1272 if (prog_ioctl(s, SIOCGIFMETRIC, &ifr) == -1) 1273 warn("SIOCGIFMETRIC %s", ifr.ifr_name); 1274 else if (ifr.ifr_metric != 0) 1275 printf(" metric %d", ifr.ifr_metric); 1276 1277 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1278 if (prog_ioctl(s, SIOCGIFMTU, &ifr) != -1 && ifr.ifr_mtu != 0) 1279 printf(" mtu %d", ifr.ifr_mtu); 1280 printf("\n"); 1281 1282 if (getifcaps(env, oenv, &ifcr) == -1) 1283 err(EXIT_FAILURE, "%s: getifcaps", __func__); 1284 1285 if (ifcr.ifcr_capabilities != 0) { 1286 (void)snprintb_m(fbuf, sizeof(fbuf), IFCAPBITS, 1287 ifcr.ifcr_capabilities, MAX_PRINT_LEN); 1288 bp = fbuf; 1289 while (*bp != '\0') { 1290 printf("\tcapabilities=%s\n", &bp[2]); 1291 bp += strlen(bp) + 1; 1292 } 1293 (void)snprintb_m(fbuf, sizeof(fbuf), IFCAPBITS, 1294 ifcr.ifcr_capenable, MAX_PRINT_LEN); 1295 bp = fbuf; 1296 while (*bp != '\0') { 1297 printf("\tenabled=%s\n", &bp[2]); 1298 bp += strlen(bp) + 1; 1299 } 1300 } 1301 1302 SIMPLEQ_FOREACH(status_f, &status_funcs, f_next) 1303 (*status_f->f_func)(env, oenv); 1304 1305 print_link_addresses(env, true); 1306 1307 estrlcpy(ifdrv.ifd_name, ifname, sizeof(ifdrv.ifd_name)); 1308 ifdrv.ifd_cmd = IFLINKSTR_QUERYLEN; 1309 ifdrv.ifd_len = 0; 1310 ifdrv.ifd_data = NULL; 1311 /* interface supports linkstr? */ 1312 if (prog_ioctl(s, SIOCGLINKSTR, &ifdrv) != -1) { 1313 char *p; 1314 1315 p = malloc(ifdrv.ifd_len); 1316 if (p == NULL) 1317 err(EXIT_FAILURE, "malloc linkstr buf failed"); 1318 ifdrv.ifd_data = p; 1319 ifdrv.ifd_cmd = 0; 1320 if (prog_ioctl(s, SIOCGLINKSTR, &ifdrv) == -1) 1321 err(EXIT_FAILURE, "failed to query linkstr"); 1322 printf("\tlinkstr: %s\n", (char *)ifdrv.ifd_data); 1323 free(p); 1324 } 1325 1326 media_status(env, oenv); 1327 1328 if (!vflag && !zflag) 1329 goto proto_status; 1330 1331 estrlcpy(ifdr.ifdr_name, ifname, sizeof(ifdr.ifdr_name)); 1332 1333 if (prog_ioctl(s, zflag ? SIOCZIFDATA : SIOCGIFDATA, &ifdr) == -1) 1334 err(EXIT_FAILURE, zflag ? "SIOCZIFDATA" : "SIOCGIFDATA"); 1335 1336 ifi = &ifdr.ifdr_data; 1337 1338 print_plural("\tinput: ", ifi->ifi_ipackets, "packet"); 1339 print_human_bytes(hflag, ifi->ifi_ibytes); 1340 if (ifi->ifi_imcasts) 1341 print_plural(", ", ifi->ifi_imcasts, "multicast"); 1342 if (ifi->ifi_ierrors) 1343 print_plural(", ", ifi->ifi_ierrors, "error"); 1344 if (ifi->ifi_iqdrops) 1345 print_plural(", ", ifi->ifi_iqdrops, "queue drop"); 1346 if (ifi->ifi_noproto) 1347 printf(", %" PRIu64 " unknown protocol", ifi->ifi_noproto); 1348 print_plural("\n\toutput: ", ifi->ifi_opackets, "packet"); 1349 print_human_bytes(hflag, ifi->ifi_obytes); 1350 if (ifi->ifi_omcasts) 1351 print_plural(", ", ifi->ifi_omcasts, "multicast"); 1352 if (ifi->ifi_oerrors) 1353 print_plural(", ", ifi->ifi_oerrors, "error"); 1354 if (ifi->ifi_collisions) 1355 print_plural(", ", ifi->ifi_collisions, "collision"); 1356 printf("\n"); 1357 1358 SIMPLEQ_FOREACH(statistics_f, &statistics_funcs, f_next) 1359 (*statistics_f->f_func)(env); 1360 1361 proto_status: 1362 1363 if (afp != NULL) 1364 (*afp->af_status)(env, oenv, true); 1365 else SIMPLEQ_FOREACH(afp, &aflist, af_next) 1366 (*afp->af_status)(env, oenv, false); 1367 } 1368 1369 static int 1370 setifprefixlen(prop_dictionary_t env, prop_dictionary_t oenv) 1371 { 1372 bool rc; 1373 int64_t plen; 1374 int af; 1375 struct paddr_prefix *pfx; 1376 prop_data_t d; 1377 1378 if ((af = getaf(env)) == -1) 1379 af = AF_INET; 1380 1381 rc = prop_dictionary_get_int64(env, "prefixlen", &plen); 1382 assert(rc); 1383 1384 pfx = prefixlen_to_mask(af, plen); 1385 if (pfx == NULL) 1386 err(EXIT_FAILURE, "prefixlen_to_mask"); 1387 1388 d = prop_data_create_data(pfx, paddr_prefix_size(pfx)); 1389 if (d == NULL) 1390 err(EXIT_FAILURE, "%s: prop_data_create_data", __func__); 1391 1392 if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) 1393 err(EXIT_FAILURE, "%s: prop_dictionary_set", __func__); 1394 1395 free(pfx); 1396 return 0; 1397 } 1398 1399 static int 1400 setlinkstr(prop_dictionary_t env, prop_dictionary_t oenv) 1401 { 1402 struct ifdrv ifdrv; 1403 size_t linkstrlen; 1404 prop_data_t data; 1405 char *linkstr; 1406 1407 data = (prop_data_t)prop_dictionary_get(env, "linkstr"); 1408 if (data == NULL) { 1409 errno = ENOENT; 1410 return -1; 1411 } 1412 linkstrlen = prop_data_size(data)+1; 1413 1414 linkstr = malloc(linkstrlen); 1415 if (linkstr == NULL) 1416 err(EXIT_FAILURE, "malloc linkstr space"); 1417 if (getargstr(env, "linkstr", linkstr, linkstrlen) == -1) 1418 errx(EXIT_FAILURE, "getargstr linkstr failed"); 1419 1420 ifdrv.ifd_cmd = 0; 1421 ifdrv.ifd_len = linkstrlen; 1422 ifdrv.ifd_data = __UNCONST(linkstr); 1423 1424 if (direct_ioctl(env, SIOCSLINKSTR, &ifdrv) == -1) 1425 err(EXIT_FAILURE, "SIOCSLINKSTR"); 1426 free(linkstr); 1427 1428 return 0; 1429 } 1430 1431 static int 1432 unsetlinkstr(prop_dictionary_t env, prop_dictionary_t oenv) 1433 { 1434 struct ifdrv ifdrv; 1435 1436 memset(&ifdrv, 0, sizeof(ifdrv)); 1437 ifdrv.ifd_cmd = IFLINKSTR_UNSET; 1438 1439 if (direct_ioctl(env, SIOCSLINKSTR, &ifdrv) == -1) 1440 err(EXIT_FAILURE, "SIOCSLINKSTR"); 1441 1442 return 0; 1443 } 1444 1445 static void 1446 usage(void) 1447 { 1448 const char *progname = getprogname(); 1449 usage_func_t *usage_f; 1450 prop_dictionary_t env; 1451 1452 if ((env = prop_dictionary_create()) == NULL) 1453 err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); 1454 1455 fprintf(stderr, "usage: %s [-h] %s[-v] [-z] %sinterface\n" 1456 "\t[ af [ address [ dest_addr ] ] [ netmask mask ] [ prefixlen n ]\n" 1457 "\t\t[ alias | -alias ] ]\n" 1458 "\t[ up ] [ down ] [ metric n ] [ mtu n ]\n", progname, 1459 flag_is_registered(gflags, 'm') ? "[-m] " : "", 1460 flag_is_registered(gflags, 'L') ? "[-L] " : ""); 1461 1462 SIMPLEQ_FOREACH(usage_f, &usage_funcs, f_next) 1463 (*usage_f->f_func)(env); 1464 1465 fprintf(stderr, 1466 "\t[ arp | -arp ]\n" 1467 "\t[ preference n ]\n" 1468 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" 1469 " %s -a [-b] [-d] [-h] %s[-u] [-v] [-z] [ af ]\n" 1470 " %s -l [-b] [-d] [-s] [-u]\n" 1471 " %s -C\n" 1472 " %s -w n\n" 1473 " %s interface create\n" 1474 " %s interface destroy\n", 1475 progname, flag_is_registered(gflags, 'm') ? "[-m] " : "", 1476 progname, progname, progname, progname, progname); 1477 1478 prop_object_release((prop_object_t)env); 1479 exit(EXIT_FAILURE); 1480 } 1481
Indexes created Tue Sep 30 11:09:46 GMT 2025