ifconfig.c revision 1.232
1 /* $NetBSD: ifconfig.c,v 1.232 2014/09/11 13:10:04 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 1.232 2014/09/11 13:10:04 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 #ifdef INET6 519 bool waiting; 520 struct ifaddrs *ifaddrs, *ifa; 521 struct in6_ifreq ifr6; 522 int s; 523 const struct timespec ts = { .tv_sec = 0, .tv_nsec = WAIT_DAD }; 524 const struct timespec add = { .tv_sec = wflag_secs, .tv_nsec = 0}; 525 struct timespec now, end; 526 527 if (wflag_secs) { 528 if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) 529 err(EXIT_FAILURE, "clock_gettime"); 530 timespecadd(&now, &add, &end); 531 } 532 533 if (getifaddrs(&ifaddrs) == -1) 534 err(EXIT_FAILURE, "getifaddrs"); 535 536 for (;;) { 537 waiting = false; 538 for (ifa = ifaddrs; ifa; ifa = ifa->ifa_next) { 539 if (ifa->ifa_addr == NULL) 540 continue; 541 switch (ifa->ifa_addr->sa_family) { 542 case AF_INET6: 543 memset(&ifr6, 0, sizeof(ifr6)); 544 strncpy(ifr6.ifr_name, 545 ifa->ifa_name, sizeof(ifr6.ifr_name)); 546 ifr6.ifr_addr = 547 *(struct sockaddr_in6 *)ifa->ifa_addr; 548 if ((s = getsock(AF_INET6)) == -1) 549 err(EXIT_FAILURE, 550 "%s: getsock", __func__); 551 if (ioctl(s, SIOCGIFAFLAG_IN6, &ifr6) == -1) 552 err(EXIT_FAILURE, "SIOCGIFAFLAG_IN6"); 553 if (ifr6.ifr_ifru.ifru_flags6 & 554 IN6_IFF_TENTATIVE) 555 { 556 waiting = true; 557 break; 558 } 559 } 560 if (waiting) 561 break; 562 } 563 if (!waiting) 564 break; 565 nanosleep(&ts, NULL); 566 if (wflag_secs) { 567 if (clock_gettime(CLOCK_MONOTONIC, &now) == -1) 568 err(EXIT_FAILURE, "clock_gettime"); 569 if (timespeccmp(&now, &end, >)) 570 errx(EXIT_FAILURE, "timed out"); 571 } 572 } 573 574 freeifaddrs(ifaddrs); 575 #endif 576 exit(EXIT_SUCCESS); 577 } 578 579 static int 580 media_status_exec(prop_dictionary_t env, prop_dictionary_t oenv) 581 { 582 const char *ifname; 583 unsigned short ignore; 584 585 /* ifname == NULL is ok. It indicates 'ifconfig -a'. */ 586 if ((ifname = getifname(env)) == NULL) 587 ; 588 else if (getifflags(env, oenv, &ignore) == -1) 589 err(EXIT_FAILURE, "SIOCGIFFLAGS %s", ifname); 590 591 exit(carrier(env)); 592 } 593 594 static void 595 do_setifcaps(prop_dictionary_t env) 596 { 597 struct ifcapreq ifcr; 598 prop_data_t d; 599 600 d = (prop_data_t )prop_dictionary_get(env, "ifcaps"); 601 if (d == NULL) 602 return; 603 604 assert(sizeof(ifcr) == prop_data_size(d)); 605 606 memcpy(&ifcr, prop_data_data_nocopy(d), sizeof(ifcr)); 607 if (direct_ioctl(env, SIOCSIFCAP, &ifcr) == -1) 608 err(EXIT_FAILURE, "SIOCSIFCAP"); 609 } 610 611 int 612 main(int argc, char **argv) 613 { 614 const struct afswtch *afp; 615 int af, s; 616 bool aflag = false, Cflag = false; 617 struct match match[32]; 618 size_t nmatch; 619 struct parser *start; 620 int ch, narg = 0, rc; 621 prop_dictionary_t env, oenv; 622 const char *ifname; 623 char *end; 624 625 memset(match, 0, sizeof(match)); 626 627 init_afs(); 628 629 start = init_parser(); 630 631 /* Parse command-line options */ 632 Nflag = vflag = zflag = false; 633 aflag = argc == 1 ? true : false; 634 if (aflag) 635 start = &opt_family_only.pb_parser; 636 637 while ((ch = getopt(argc, argv, gflags)) != -1) { 638 switch (ch) { 639 case 'A': 640 warnx("-A is deprecated"); 641 break; 642 643 case 'a': 644 aflag = true; 645 break; 646 647 case 'b': 648 bflag = true; 649 break; 650 651 case 'C': 652 Cflag = true; 653 break; 654 655 case 'd': 656 dflag = true; 657 break; 658 case 'h': 659 hflag = true; 660 break; 661 case 'l': 662 lflag = true; 663 break; 664 case 'N': 665 Nflag = true; 666 break; 667 668 case 's': 669 sflag = true; 670 break; 671 672 case 'u': 673 uflag = true; 674 break; 675 676 case 'v': 677 vflag = true; 678 break; 679 680 case 'w': 681 wflag = true; 682 wflag_secs = strtol(optarg, &end, 10); 683 if ((end != NULL && *end != '\0') || 684 wflag_secs < 0 || wflag_secs >= INT32_MAX) 685 errx(EXIT_FAILURE, "%s: not a number", optarg); 686 break; 687 688 case 'z': 689 zflag = true; 690 break; 691 692 default: 693 if (!set_flag(ch)) 694 usage(); 695 break; 696 } 697 switch (ch) { 698 case 'a': 699 start = &opt_family_only.pb_parser; 700 break; 701 702 case 'L': 703 case 'm': 704 case 'z': 705 if (start != &opt_family_only.pb_parser) 706 start = &iface_opt_family_only.pif_parser; 707 break; 708 case 'C': 709 start = &cloneterm.pt_parser; 710 break; 711 case 'l': 712 start = &no_cmds.pt_parser; 713 break; 714 case 's': 715 if (start != &no_cmds.pt_parser && 716 start != &opt_family_only.pb_parser) 717 start = &iface_only.pif_parser; 718 break; 719 case 'w': 720 start = &wait_dad.pt_parser; 721 break; 722 default: 723 break; 724 } 725 } 726 argc -= optind; 727 argv += optind; 728 729 /* 730 * -l means "list all interfaces", and is mutually exclusive with 731 * all other flags/commands. 732 * 733 * -C means "list all names of cloners", and it mutually exclusive 734 * with all other flags/commands. 735 * 736 * -a means "print status of all interfaces". 737 * 738 * -w means "spin until DAD completes for all addreseses", and is 739 * mutually exclusivewith all other flags/commands. 740 */ 741 if ((lflag || Cflag || wflag) && 742 (aflag || get_flag('m') || vflag || zflag)) 743 usage(); 744 if ((lflag || Cflag || wflag) && get_flag('L')) 745 usage(); 746 if ((lflag && Cflag) || (lflag & wflag) || (Cflag && wflag)) 747 usage(); 748 749 nmatch = __arraycount(match); 750 751 rc = parse(argc, argv, start, match, &nmatch, &narg); 752 if (rc != 0) 753 usage(); 754 755 if (prog_init && prog_init() == -1) 756 err(1, "rump client init"); 757 758 if ((oenv = prop_dictionary_create()) == NULL) 759 err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); 760 761 if (matches_exec(match, oenv, nmatch) == -1) 762 err(EXIT_FAILURE, "exec_matches"); 763 764 argc -= narg; 765 argv += narg; 766 767 env = (nmatch > 0) ? match[(int)nmatch - 1].m_env : NULL; 768 if (env == NULL) 769 env = oenv; 770 else { 771 env = prop_dictionary_augment(env, oenv); 772 if (env == NULL) 773 err(EXIT_FAILURE, "%s: prop_dictionary_augment", 774 __func__); 775 } 776 777 /* Process any media commands that may have been issued. */ 778 process_media_commands(env); 779 780 if ((af = getaf(env)) == -1) 781 af = AF_INET; 782 783 if ((s = getsock(af)) == -1) 784 err(EXIT_FAILURE, "%s: getsock", __func__); 785 786 if ((ifname = getifname(env)) == NULL) 787 err(EXIT_FAILURE, "%s: getifname", __func__); 788 789 if ((afp = lookup_af_bynum(af)) == NULL) 790 errx(EXIT_FAILURE, "%s: lookup_af_bynum", __func__); 791 792 assert(afp->af_addr_commit != NULL); 793 (*afp->af_addr_commit)(env, oenv); 794 795 do_setifpreference(env); 796 do_setifcaps(env); 797 798 exit(EXIT_SUCCESS); 799 } 800 801 static void 802 init_afs(void) 803 { 804 size_t i; 805 const struct afswtch *afp; 806 struct kwinst kw = {.k_type = KW_T_INT}; 807 808 SIMPLEQ_FOREACH(afp, &aflist, af_next) { 809 kw.k_word = afp->af_name; 810 kw.k_int = afp->af_af; 811 for (i = 0; i < __arraycount(familykw); i++) { 812 if (familykw[i].k_word == NULL) { 813 familykw[i] = kw; 814 break; 815 } 816 } 817 } 818 } 819 820 const struct afswtch * 821 lookup_af_bynum(int afnum) 822 { 823 const struct afswtch *afp; 824 825 SIMPLEQ_FOREACH(afp, &aflist, af_next) { 826 if (afp->af_af == afnum) 827 break; 828 } 829 return afp; 830 } 831 832 void 833 printall(const char *ifname, prop_dictionary_t env0) 834 { 835 struct ifaddrs *ifap, *ifa; 836 struct ifreq ifr; 837 const struct sockaddr *sdl = NULL; 838 prop_dictionary_t env, oenv; 839 int idx; 840 char *p; 841 842 if (env0 == NULL) 843 env = prop_dictionary_create(); 844 else 845 env = prop_dictionary_copy_mutable(env0); 846 847 oenv = prop_dictionary_create(); 848 849 if (env == NULL || oenv == NULL) 850 errx(EXIT_FAILURE, "%s: prop_dictionary_copy/create", __func__); 851 852 if (getifaddrs(&ifap) != 0) 853 err(EXIT_FAILURE, "getifaddrs"); 854 p = NULL; 855 idx = 0; 856 for (ifa = ifap; ifa; ifa = ifa->ifa_next) { 857 memset(&ifr, 0, sizeof(ifr)); 858 estrlcpy(ifr.ifr_name, ifa->ifa_name, sizeof(ifr.ifr_name)); 859 if (sizeof(ifr.ifr_addr) >= ifa->ifa_addr->sa_len) { 860 memcpy(&ifr.ifr_addr, ifa->ifa_addr, 861 ifa->ifa_addr->sa_len); 862 } 863 864 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0) 865 continue; 866 if (ifa->ifa_addr->sa_family == AF_LINK) 867 sdl = ifa->ifa_addr; 868 if (p && strcmp(p, ifa->ifa_name) == 0) 869 continue; 870 if (!prop_dictionary_set_cstring(env, "if", ifa->ifa_name)) 871 continue; 872 p = ifa->ifa_name; 873 874 if (bflag && (ifa->ifa_flags & IFF_BROADCAST) == 0) 875 continue; 876 if (dflag && (ifa->ifa_flags & IFF_UP) != 0) 877 continue; 878 if (uflag && (ifa->ifa_flags & IFF_UP) == 0) 879 continue; 880 881 if (sflag && carrier(env)) 882 continue; 883 idx++; 884 /* 885 * Are we just listing the interfaces? 886 */ 887 if (lflag) { 888 if (idx > 1) 889 printf(" "); 890 fputs(ifa->ifa_name, stdout); 891 continue; 892 } 893 894 status(sdl, env, oenv); 895 sdl = NULL; 896 } 897 if (lflag) 898 printf("\n"); 899 prop_object_release((prop_object_t)env); 900 prop_object_release((prop_object_t)oenv); 901 freeifaddrs(ifap); 902 } 903 904 static int 905 list_cloners(prop_dictionary_t env, prop_dictionary_t oenv) 906 { 907 struct if_clonereq ifcr; 908 char *cp, *buf; 909 int idx, s; 910 911 memset(&ifcr, 0, sizeof(ifcr)); 912 913 s = getsock(AF_INET); 914 915 if (prog_ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 916 err(EXIT_FAILURE, "SIOCIFGCLONERS for count"); 917 918 buf = malloc(ifcr.ifcr_total * IFNAMSIZ); 919 if (buf == NULL) 920 err(EXIT_FAILURE, "unable to allocate cloner name buffer"); 921 922 ifcr.ifcr_count = ifcr.ifcr_total; 923 ifcr.ifcr_buffer = buf; 924 925 if (prog_ioctl(s, SIOCIFGCLONERS, &ifcr) == -1) 926 err(EXIT_FAILURE, "SIOCIFGCLONERS for names"); 927 928 /* 929 * In case some disappeared in the mean time, clamp it down. 930 */ 931 if (ifcr.ifcr_count > ifcr.ifcr_total) 932 ifcr.ifcr_count = ifcr.ifcr_total; 933 934 for (cp = buf, idx = 0; idx < ifcr.ifcr_count; idx++, cp += IFNAMSIZ) { 935 if (idx > 0) 936 printf(" "); 937 printf("%s", cp); 938 } 939 940 printf("\n"); 941 free(buf); 942 exit(EXIT_SUCCESS); 943 } 944 945 static int 946 clone_command(prop_dictionary_t env, prop_dictionary_t oenv) 947 { 948 int64_t cmd; 949 950 if (!prop_dictionary_get_int64(env, "clonecmd", &cmd)) { 951 errno = ENOENT; 952 return -1; 953 } 954 955 if (indirect_ioctl(env, (unsigned long)cmd, NULL) == -1) { 956 warn("%s", __func__); 957 return -1; 958 } 959 return 0; 960 } 961 962 /*ARGSUSED*/ 963 static int 964 setifaddr(prop_dictionary_t env, prop_dictionary_t oenv) 965 { 966 const struct paddr_prefix *pfx0; 967 struct paddr_prefix *pfx; 968 prop_data_t d; 969 int af; 970 971 if ((af = getaf(env)) == -1) 972 af = AF_INET; 973 974 d = (prop_data_t)prop_dictionary_get(env, "address"); 975 assert(d != NULL); 976 pfx0 = prop_data_data_nocopy(d); 977 978 if (pfx0->pfx_len >= 0) { 979 pfx = prefixlen_to_mask(af, pfx0->pfx_len); 980 if (pfx == NULL) 981 err(EXIT_FAILURE, "prefixlen_to_mask"); 982 free(pfx); 983 } 984 985 return 0; 986 } 987 988 static int 989 setifnetmask(prop_dictionary_t env, prop_dictionary_t oenv) 990 { 991 prop_data_t d; 992 993 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 994 assert(d != NULL); 995 996 if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) 997 return -1; 998 999 return 0; 1000 } 1001 1002 static int 1003 setifbroadaddr(prop_dictionary_t env, prop_dictionary_t oenv) 1004 { 1005 prop_data_t d; 1006 unsigned short flags; 1007 1008 if (getifflags(env, oenv, &flags) == -1) 1009 err(EXIT_FAILURE, "%s: getifflags", __func__); 1010 1011 if ((flags & IFF_BROADCAST) == 0) 1012 errx(EXIT_FAILURE, "not a broadcast interface"); 1013 1014 d = (prop_data_t)prop_dictionary_get(env, "broadcast"); 1015 assert(d != NULL); 1016 1017 if (!prop_dictionary_set(oenv, "broadcast", (prop_object_t)d)) 1018 return -1; 1019 1020 return 0; 1021 } 1022 1023 /*ARGSUSED*/ 1024 static int 1025 notrailers(prop_dictionary_t env, prop_dictionary_t oenv) 1026 { 1027 puts("Note: trailers are no longer sent, but always received"); 1028 return 0; 1029 } 1030 1031 /*ARGSUSED*/ 1032 static int 1033 setifdstormask(prop_dictionary_t env, prop_dictionary_t oenv) 1034 { 1035 const char *key; 1036 prop_data_t d; 1037 unsigned short flags; 1038 1039 if (getifflags(env, oenv, &flags) == -1) 1040 err(EXIT_FAILURE, "%s: getifflags", __func__); 1041 1042 d = (prop_data_t)prop_dictionary_get(env, "dstormask"); 1043 assert(d != NULL); 1044 1045 if ((flags & IFF_BROADCAST) == 0) { 1046 key = "dst"; 1047 } else { 1048 key = "netmask"; 1049 } 1050 1051 if (!prop_dictionary_set(oenv, key, (prop_object_t)d)) 1052 return -1; 1053 1054 return 0; 1055 } 1056 1057 static int 1058 setifflags(prop_dictionary_t env, prop_dictionary_t oenv) 1059 { 1060 struct ifreq ifr; 1061 int64_t ifflag; 1062 bool rc; 1063 1064 rc = prop_dictionary_get_int64(env, "ifflag", &ifflag); 1065 assert(rc); 1066 1067 if (direct_ioctl(env, SIOCGIFFLAGS, &ifr) == -1) 1068 return -1; 1069 1070 if (ifflag < 0) { 1071 ifflag = -ifflag; 1072 ifr.ifr_flags &= ~ifflag; 1073 } else 1074 ifr.ifr_flags |= ifflag; 1075 1076 if (direct_ioctl(env, SIOCSIFFLAGS, &ifr) == -1) 1077 return -1; 1078 1079 return 0; 1080 } 1081 1082 static int 1083 getifcaps(prop_dictionary_t env, prop_dictionary_t oenv, struct ifcapreq *oifcr) 1084 { 1085 bool rc; 1086 struct ifcapreq ifcr; 1087 const struct ifcapreq *tmpifcr; 1088 prop_data_t capdata; 1089 1090 capdata = (prop_data_t)prop_dictionary_get(env, "ifcaps"); 1091 1092 if (capdata != NULL) { 1093 tmpifcr = prop_data_data_nocopy(capdata); 1094 *oifcr = *tmpifcr; 1095 return 0; 1096 } 1097 1098 (void)direct_ioctl(env, SIOCGIFCAP, &ifcr); 1099 *oifcr = ifcr; 1100 1101 capdata = prop_data_create_data(&ifcr, sizeof(ifcr)); 1102 1103 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1104 1105 prop_object_release((prop_object_t)capdata); 1106 1107 return rc ? 0 : -1; 1108 } 1109 1110 static int 1111 setifcaps(prop_dictionary_t env, prop_dictionary_t oenv) 1112 { 1113 int64_t ifcap; 1114 bool rc; 1115 prop_data_t capdata; 1116 struct ifcapreq ifcr; 1117 1118 rc = prop_dictionary_get_int64(env, "ifcap", &ifcap); 1119 assert(rc); 1120 1121 if (getifcaps(env, oenv, &ifcr) == -1) 1122 return -1; 1123 1124 if (ifcap < 0) { 1125 ifcap = -ifcap; 1126 ifcr.ifcr_capenable &= ~ifcap; 1127 } else 1128 ifcr.ifcr_capenable |= ifcap; 1129 1130 if ((capdata = prop_data_create_data(&ifcr, sizeof(ifcr))) == NULL) 1131 return -1; 1132 1133 rc = prop_dictionary_set(oenv, "ifcaps", capdata); 1134 prop_object_release((prop_object_t)capdata); 1135 1136 return rc ? 0 : -1; 1137 } 1138 1139 static int 1140 setifmetric(prop_dictionary_t env, prop_dictionary_t oenv) 1141 { 1142 struct ifreq ifr; 1143 bool rc; 1144 int64_t metric; 1145 1146 rc = prop_dictionary_get_int64(env, "metric", &metric); 1147 assert(rc); 1148 1149 ifr.ifr_metric = metric; 1150 if (direct_ioctl(env, SIOCSIFMETRIC, &ifr) == -1) 1151 warn("SIOCSIFMETRIC"); 1152 return 0; 1153 } 1154 1155 static void 1156 do_setifpreference(prop_dictionary_t env) 1157 { 1158 struct if_addrprefreq ifap; 1159 prop_data_t d; 1160 const struct paddr_prefix *pfx; 1161 1162 memset(&ifap, 0, sizeof(ifap)); 1163 1164 if (!prop_dictionary_get_int16(env, "preference", 1165 &ifap.ifap_preference)) 1166 return; 1167 1168 d = (prop_data_t)prop_dictionary_get(env, "address"); 1169 assert(d != NULL); 1170 1171 pfx = prop_data_data_nocopy(d); 1172 1173 memcpy(&ifap.ifap_addr, &pfx->pfx_addr, 1174 MIN(sizeof(ifap.ifap_addr), pfx->pfx_addr.sa_len)); 1175 if (direct_ioctl(env, SIOCSIFADDRPREF, &ifap) == -1) 1176 warn("SIOCSIFADDRPREF"); 1177 } 1178 1179 static int 1180 setifmtu(prop_dictionary_t env, prop_dictionary_t oenv) 1181 { 1182 int64_t mtu; 1183 bool rc; 1184 struct ifreq ifr; 1185 1186 rc = prop_dictionary_get_int64(env, "mtu", &mtu); 1187 assert(rc); 1188 1189 ifr.ifr_mtu = mtu; 1190 if (direct_ioctl(env, SIOCSIFMTU, &ifr) == -1) 1191 warn("SIOCSIFMTU"); 1192 1193 return 0; 1194 } 1195 1196 static int 1197 carrier(prop_dictionary_t env) 1198 { 1199 struct ifmediareq ifmr; 1200 1201 memset(&ifmr, 0, sizeof(ifmr)); 1202 1203 if (direct_ioctl(env, SIOCGIFMEDIA, &ifmr) == -1) { 1204 /* 1205 * Interface doesn't support SIOC{G,S}IFMEDIA; 1206 * assume ok. 1207 */ 1208 return EXIT_SUCCESS; 1209 } 1210 if ((ifmr.ifm_status & IFM_AVALID) == 0) { 1211 /* 1212 * Interface doesn't report media-valid status. 1213 * assume ok. 1214 */ 1215 return EXIT_SUCCESS; 1216 } 1217 /* otherwise, return ok for active, not-ok if not active. */ 1218 if (ifmr.ifm_status & IFM_ACTIVE) 1219 return EXIT_SUCCESS; 1220 else 1221 return EXIT_FAILURE; 1222 } 1223 1224 static void 1225 print_plural(const char *prefix, uint64_t n, const char *unit) 1226 { 1227 printf("%s%" PRIu64 " %s%s", prefix, n, unit, (n == 1) ? "" : "s"); 1228 } 1229 1230 static void 1231 print_human_bytes(bool humanize, uint64_t n) 1232 { 1233 char buf[5]; 1234 1235 if (humanize) { 1236 (void)humanize_number(buf, sizeof(buf), 1237 (int64_t)n, "", HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL); 1238 printf(", %s byte%s", buf, (atof(buf) == 1.0) ? "" : "s"); 1239 } else 1240 print_plural(", ", n, "byte"); 1241 } 1242 1243 /* 1244 * Print the status of the interface. If an address family was 1245 * specified, show it and it only; otherwise, show them all. 1246 */ 1247 1248 #define MAX_PRINT_LEN 58 /* XXX need a better way to determine this! */ 1249 1250 void 1251 status(const struct sockaddr *sdl, prop_dictionary_t env, 1252 prop_dictionary_t oenv) 1253 { 1254 const struct if_data *ifi; 1255 status_func_t *status_f; 1256 statistics_func_t *statistics_f; 1257 struct ifdatareq ifdr; 1258 struct ifreq ifr; 1259 struct ifdrv ifdrv; 1260 char fbuf[BUFSIZ]; 1261 char *bp; 1262 int af, s; 1263 const char *ifname; 1264 struct ifcapreq ifcr; 1265 unsigned short flags; 1266 const struct afswtch *afp; 1267 1268 if ((af = getaf(env)) == -1) { 1269 afp = NULL; 1270 af = AF_UNSPEC; 1271 } else 1272 afp = lookup_af_bynum(af); 1273 1274 /* get out early if the family is unsupported by the kernel */ 1275 if ((s = getsock(af)) == -1) 1276 err(EXIT_FAILURE, "%s: getsock", __func__); 1277 1278 if ((ifname = getifinfo(env, oenv, &flags)) == NULL) 1279 err(EXIT_FAILURE, "%s: getifinfo", __func__); 1280 1281 (void)snprintb_m(fbuf, sizeof(fbuf), IFFBITS, flags, MAX_PRINT_LEN); 1282 bp = fbuf; 1283 while (*bp != '\0') { 1284 printf("%s: flags=%s", ifname, &bp[2]); 1285 bp += strlen(bp) + 1; 1286 } 1287 1288 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1289 if (prog_ioctl(s, SIOCGIFMETRIC, &ifr) == -1) 1290 warn("SIOCGIFMETRIC %s", ifr.ifr_name); 1291 else if (ifr.ifr_metric != 0) 1292 printf(" metric %d", ifr.ifr_metric); 1293 1294 estrlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); 1295 if (prog_ioctl(s, SIOCGIFMTU, &ifr) != -1 && ifr.ifr_mtu != 0) 1296 printf(" mtu %d", ifr.ifr_mtu); 1297 printf("\n"); 1298 1299 if (getifcaps(env, oenv, &ifcr) == -1) 1300 err(EXIT_FAILURE, "%s: getifcaps", __func__); 1301 1302 if (ifcr.ifcr_capabilities != 0) { 1303 (void)snprintb_m(fbuf, sizeof(fbuf), IFCAPBITS, 1304 ifcr.ifcr_capabilities, MAX_PRINT_LEN); 1305 bp = fbuf; 1306 while (*bp != '\0') { 1307 printf("\tcapabilities=%s\n", &bp[2]); 1308 bp += strlen(bp) + 1; 1309 } 1310 (void)snprintb_m(fbuf, sizeof(fbuf), IFCAPBITS, 1311 ifcr.ifcr_capenable, MAX_PRINT_LEN); 1312 bp = fbuf; 1313 while (*bp != '\0') { 1314 printf("\tenabled=%s\n", &bp[2]); 1315 bp += strlen(bp) + 1; 1316 } 1317 } 1318 1319 SIMPLEQ_FOREACH(status_f, &status_funcs, f_next) 1320 (*status_f->f_func)(env, oenv); 1321 1322 print_link_addresses(env, true); 1323 1324 estrlcpy(ifdrv.ifd_name, ifname, sizeof(ifdrv.ifd_name)); 1325 ifdrv.ifd_cmd = IFLINKSTR_QUERYLEN; 1326 ifdrv.ifd_len = 0; 1327 ifdrv.ifd_data = NULL; 1328 /* interface supports linkstr? */ 1329 if (prog_ioctl(s, SIOCGLINKSTR, &ifdrv) != -1) { 1330 char *p; 1331 1332 p = malloc(ifdrv.ifd_len); 1333 if (p == NULL) 1334 err(EXIT_FAILURE, "malloc linkstr buf failed"); 1335 ifdrv.ifd_data = p; 1336 ifdrv.ifd_cmd = 0; 1337 if (prog_ioctl(s, SIOCGLINKSTR, &ifdrv) == -1) 1338 err(EXIT_FAILURE, "failed to query linkstr"); 1339 printf("\tlinkstr: %s\n", (char *)ifdrv.ifd_data); 1340 free(p); 1341 } 1342 1343 media_status(env, oenv); 1344 1345 if (!vflag && !zflag) 1346 goto proto_status; 1347 1348 estrlcpy(ifdr.ifdr_name, ifname, sizeof(ifdr.ifdr_name)); 1349 1350 if (prog_ioctl(s, zflag ? SIOCZIFDATA : SIOCGIFDATA, &ifdr) == -1) 1351 err(EXIT_FAILURE, zflag ? "SIOCZIFDATA" : "SIOCGIFDATA"); 1352 1353 ifi = &ifdr.ifdr_data; 1354 1355 print_plural("\tinput: ", ifi->ifi_ipackets, "packet"); 1356 print_human_bytes(hflag, ifi->ifi_ibytes); 1357 if (ifi->ifi_imcasts) 1358 print_plural(", ", ifi->ifi_imcasts, "multicast"); 1359 if (ifi->ifi_ierrors) 1360 print_plural(", ", ifi->ifi_ierrors, "error"); 1361 if (ifi->ifi_iqdrops) 1362 print_plural(", ", ifi->ifi_iqdrops, "queue drop"); 1363 if (ifi->ifi_noproto) 1364 printf(", %" PRIu64 " unknown protocol", ifi->ifi_noproto); 1365 print_plural("\n\toutput: ", ifi->ifi_opackets, "packet"); 1366 print_human_bytes(hflag, ifi->ifi_obytes); 1367 if (ifi->ifi_omcasts) 1368 print_plural(", ", ifi->ifi_omcasts, "multicast"); 1369 if (ifi->ifi_oerrors) 1370 print_plural(", ", ifi->ifi_oerrors, "error"); 1371 if (ifi->ifi_collisions) 1372 print_plural(", ", ifi->ifi_collisions, "collision"); 1373 printf("\n"); 1374 1375 SIMPLEQ_FOREACH(statistics_f, &statistics_funcs, f_next) 1376 (*statistics_f->f_func)(env); 1377 1378 proto_status: 1379 1380 if (afp != NULL) 1381 (*afp->af_status)(env, oenv, true); 1382 else SIMPLEQ_FOREACH(afp, &aflist, af_next) 1383 (*afp->af_status)(env, oenv, false); 1384 } 1385 1386 static int 1387 setifprefixlen(prop_dictionary_t env, prop_dictionary_t oenv) 1388 { 1389 bool rc; 1390 int64_t plen; 1391 int af; 1392 struct paddr_prefix *pfx; 1393 prop_data_t d; 1394 1395 if ((af = getaf(env)) == -1) 1396 af = AF_INET; 1397 1398 rc = prop_dictionary_get_int64(env, "prefixlen", &plen); 1399 assert(rc); 1400 1401 pfx = prefixlen_to_mask(af, plen); 1402 if (pfx == NULL) 1403 err(EXIT_FAILURE, "prefixlen_to_mask"); 1404 1405 d = prop_data_create_data(pfx, paddr_prefix_size(pfx)); 1406 if (d == NULL) 1407 err(EXIT_FAILURE, "%s: prop_data_create_data", __func__); 1408 1409 if (!prop_dictionary_set(oenv, "netmask", (prop_object_t)d)) 1410 err(EXIT_FAILURE, "%s: prop_dictionary_set", __func__); 1411 1412 free(pfx); 1413 return 0; 1414 } 1415 1416 static int 1417 setlinkstr(prop_dictionary_t env, prop_dictionary_t oenv) 1418 { 1419 struct ifdrv ifdrv; 1420 size_t linkstrlen; 1421 prop_data_t data; 1422 char *linkstr; 1423 1424 data = (prop_data_t)prop_dictionary_get(env, "linkstr"); 1425 if (data == NULL) { 1426 errno = ENOENT; 1427 return -1; 1428 } 1429 linkstrlen = prop_data_size(data)+1; 1430 1431 linkstr = malloc(linkstrlen); 1432 if (linkstr == NULL) 1433 err(EXIT_FAILURE, "malloc linkstr space"); 1434 if (getargstr(env, "linkstr", linkstr, linkstrlen) == -1) 1435 errx(EXIT_FAILURE, "getargstr linkstr failed"); 1436 1437 ifdrv.ifd_cmd = 0; 1438 ifdrv.ifd_len = linkstrlen; 1439 ifdrv.ifd_data = __UNCONST(linkstr); 1440 1441 if (direct_ioctl(env, SIOCSLINKSTR, &ifdrv) == -1) 1442 err(EXIT_FAILURE, "SIOCSLINKSTR"); 1443 free(linkstr); 1444 1445 return 0; 1446 } 1447 1448 static int 1449 unsetlinkstr(prop_dictionary_t env, prop_dictionary_t oenv) 1450 { 1451 struct ifdrv ifdrv; 1452 1453 memset(&ifdrv, 0, sizeof(ifdrv)); 1454 ifdrv.ifd_cmd = IFLINKSTR_UNSET; 1455 1456 if (direct_ioctl(env, SIOCSLINKSTR, &ifdrv) == -1) 1457 err(EXIT_FAILURE, "SIOCSLINKSTR"); 1458 1459 return 0; 1460 } 1461 1462 static void 1463 usage(void) 1464 { 1465 const char *progname = getprogname(); 1466 usage_func_t *usage_f; 1467 prop_dictionary_t env; 1468 1469 if ((env = prop_dictionary_create()) == NULL) 1470 err(EXIT_FAILURE, "%s: prop_dictionary_create", __func__); 1471 1472 fprintf(stderr, "usage: %s [-h] %s[-v] [-z] %sinterface\n" 1473 "\t[ af [ address [ dest_addr ] ] [ netmask mask ] [ prefixlen n ]\n" 1474 "\t\t[ alias | -alias ] ]\n" 1475 "\t[ up ] [ down ] [ metric n ] [ mtu n ]\n", progname, 1476 flag_is_registered(gflags, 'm') ? "[-m] " : "", 1477 flag_is_registered(gflags, 'L') ? "[-L] " : ""); 1478 1479 SIMPLEQ_FOREACH(usage_f, &usage_funcs, f_next) 1480 (*usage_f->f_func)(env); 1481 1482 fprintf(stderr, 1483 "\t[ arp | -arp ]\n" 1484 "\t[ preference n ]\n" 1485 "\t[ link0 | -link0 ] [ link1 | -link1 ] [ link2 | -link2 ]\n" 1486 " %s -a [-b] [-d] [-h] %s[-u] [-v] [-z] [ af ]\n" 1487 " %s -l [-b] [-d] [-s] [-u]\n" 1488 " %s -C\n" 1489 " %s -w n\n" 1490 " %s interface create\n" 1491 " %s interface destroy\n", 1492 progname, flag_is_registered(gflags, 'm') ? "[-m] " : "", 1493 progname, progname, progname, progname, progname); 1494 1495 prop_object_release((prop_object_t)env); 1496 exit(EXIT_FAILURE); 1497 } 1498
Indexes created Tue Sep 30 11:09:46 GMT 2025