1 /*- 2 * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/socket.h> 31 #include <netinet/in.h> 32 #include <net/if.h> 33 #include <net/if_dl.h> 34 #ifdef __FreeBSD__ 35 #include <net/if_var.h> 36 #endif 37 #include <net/route.h> 38 #include <arpa/inet.h> 39 #include <netinet/in_systm.h> 40 #include <netinet/in_var.h> 41 #include <netinet/ip.h> 42 #ifndef NOINET6 43 #include <netinet6/nd6.h> 44 #endif 45 #include <sys/un.h> 46 47 #include <errno.h> 48 #include <string.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <sys/ioctl.h> 52 #include <sys/sysctl.h> 53 #include <termios.h> 54 #include <unistd.h> 55 56 #include "layer.h" 57 #include "defs.h" 58 #include "command.h" 59 #include "mbuf.h" 60 #include "log.h" 61 #include "id.h" 62 #include "timer.h" 63 #include "fsm.h" 64 #include "iplist.h" 65 #include "lqr.h" 66 #include "hdlc.h" 67 #include "throughput.h" 68 #include "slcompress.h" 69 #include "descriptor.h" 70 #include "ncpaddr.h" 71 #include "ip.h" 72 #include "ipcp.h" 73 #include "filter.h" 74 #include "lcp.h" 75 #include "ccp.h" 76 #include "link.h" 77 #include "mp.h" 78 #ifndef NORADIUS 79 #include "radius.h" 80 #endif 81 #include "ipv6cp.h" 82 #include "ncp.h" 83 #include "bundle.h" 84 #include "prompt.h" 85 #include "iface.h" 86 87 88 struct iface * 89 iface_Create(const char *name) 90 { 91 int mib[6], maxtries, err; 92 size_t needed, namelen; 93 char *buf, *ptr, *end; 94 struct if_msghdr *ifm; 95 struct ifa_msghdr *ifam; 96 struct sockaddr_dl *dl; 97 struct sockaddr *sa[RTAX_MAX]; 98 struct iface *iface; 99 struct iface_addr *addr; 100 101 mib[0] = CTL_NET; 102 mib[1] = PF_ROUTE; 103 mib[2] = 0; 104 mib[3] = 0; 105 mib[4] = NET_RT_IFLIST; 106 mib[5] = 0; 107 108 maxtries = 20; 109 err = 0; 110 do { 111 if (maxtries-- == 0 || (err && err != ENOMEM)) { 112 fprintf(stderr, "iface_Create: sysctl: %s\n", strerror(err)); 113 return NULL; 114 } 115 116 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) { 117 fprintf(stderr, "iface_Create: sysctl: estimate: %s\n", 118 strerror(errno)); 119 return NULL; 120 } 121 122 if ((buf = (char *)malloc(needed)) == NULL) { 123 fprintf(stderr, "iface_Create: malloc failed: %s\n", strerror(errno)); 124 return NULL; 125 } 126 127 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 128 err = errno; 129 free(buf); 130 buf = NULL; 131 } 132 } while (buf == NULL); 133 134 ptr = buf; 135 end = buf + needed; 136 iface = NULL; 137 namelen = strlen(name); 138 139 while (ptr < end && iface == NULL) { 140 ifm = (struct if_msghdr *)ptr; /* On if_msghdr */ 141 if (ifm->ifm_type != RTM_IFINFO) 142 break; 143 dl = (struct sockaddr_dl *)(ifm + 1); /* Single _dl at end */ 144 if (dl->sdl_nlen == namelen && !strncmp(name, dl->sdl_data, namelen)) { 145 iface = (struct iface *)malloc(sizeof *iface); 146 if (iface == NULL) { 147 fprintf(stderr, "iface_Create: malloc: %s\n", strerror(errno)); 148 return NULL; 149 } 150 iface->name = strdup(name); 151 iface->index = ifm->ifm_index; 152 iface->flags = ifm->ifm_flags; 153 iface->mtu = 0; 154 iface->addrs = 0; 155 iface->addr = NULL; 156 } 157 ptr += ifm->ifm_msglen; /* First ifa_msghdr */ 158 for (; ptr < end; ptr += ifam->ifam_msglen) { 159 ifam = (struct ifa_msghdr *)ptr; /* Next if address */ 160 161 if (ifam->ifam_type != RTM_NEWADDR) /* finished this if */ 162 break; 163 164 if (iface != NULL && ifam->ifam_addrs & RTA_IFA) { 165 /* Found a configured interface ! */ 166 iface_ParseHdr(ifam, sa); 167 168 if (sa[RTAX_IFA] && (sa[RTAX_IFA]->sa_family == AF_INET 169 #ifndef NOINET6 170 || sa[RTAX_IFA]->sa_family == AF_INET6 171 #endif 172 )) { 173 /* Record the address */ 174 175 addr = (struct iface_addr *) 176 realloc(iface->addr, (iface->addrs + 1) * sizeof iface->addr[0]); 177 if (addr == NULL) 178 break; 179 iface->addr = addr; 180 181 addr += iface->addrs; 182 iface->addrs++; 183 184 ncprange_setsa(&addr->ifa, sa[RTAX_IFA], sa[RTAX_NETMASK]); 185 if (sa[RTAX_BRD]) 186 ncpaddr_setsa(&addr->peer, sa[RTAX_BRD]); 187 else 188 ncpaddr_init(&addr->peer); 189 } 190 } 191 } 192 } 193 194 free(buf); 195 196 return iface; 197 } 198 199 static int 200 iface_addr_Zap(const char *name, struct iface_addr *addr, int s) 201 { 202 struct ifaliasreq ifra; 203 #ifndef NOINET6 204 struct in6_aliasreq ifra6; 205 #endif 206 struct sockaddr_in *me4, *msk4, *peer4; 207 struct sockaddr_storage ssme, sspeer, ssmsk; 208 int res; 209 210 ncprange_getsa(&addr->ifa, &ssme, &ssmsk); 211 ncpaddr_getsa(&addr->peer, &sspeer); 212 res = 0; 213 214 switch (ncprange_family(&addr->ifa)) { 215 case AF_INET: 216 memset(&ifra, '\0', sizeof ifra); 217 strncpy(ifra.ifra_name, name, sizeof ifra.ifra_name - 1); 218 219 me4 = (struct sockaddr_in *)&ifra.ifra_addr; 220 memcpy(me4, &ssme, sizeof *me4); 221 222 msk4 = (struct sockaddr_in *)&ifra.ifra_mask; 223 memcpy(msk4, &ssmsk, sizeof *msk4); 224 225 peer4 = (struct sockaddr_in *)&ifra.ifra_broadaddr; 226 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) { 227 peer4->sin_family = AF_INET; 228 peer4->sin_len = sizeof(*peer4); 229 peer4->sin_addr.s_addr = INADDR_NONE; 230 } else 231 memcpy(peer4, &sspeer, sizeof *peer4); 232 233 res = ID0ioctl(s, SIOCDIFADDR, &ifra); 234 break; 235 236 #ifndef NOINET6 237 case AF_INET6: 238 memset(&ifra6, '\0', sizeof ifra6); 239 strncpy(ifra6.ifra_name, name, sizeof ifra6.ifra_name - 1); 240 241 memcpy(&ifra6.ifra_addr, &ssme, sizeof ifra6.ifra_addr); 242 memcpy(&ifra6.ifra_prefixmask, &ssmsk, sizeof ifra6.ifra_prefixmask); 243 ifra6.ifra_prefixmask.sin6_family = AF_UNSPEC; 244 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) 245 ifra6.ifra_dstaddr.sin6_family = AF_UNSPEC; 246 else 247 memcpy(&ifra6.ifra_dstaddr, &sspeer, sizeof ifra6.ifra_dstaddr); 248 ifra6.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME; 249 ifra6.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME; 250 251 res = ID0ioctl(s, SIOCDIFADDR_IN6, &ifra6); 252 break; 253 #endif 254 } 255 256 if (res == -1) { 257 char dst[40]; 258 const char *end = 259 #ifndef NOINET6 260 ncprange_family(&addr->ifa) == AF_INET6 ? "_IN6" : 261 #endif 262 ""; 263 264 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) 265 log_Printf(LogWARN, "iface rm: ioctl(SIOCDIFADDR%s, %s): %s\n", 266 end, ncprange_ntoa(&addr->ifa), strerror(errno)); 267 else { 268 snprintf(dst, sizeof dst, "%s", ncpaddr_ntoa(&addr->peer)); 269 log_Printf(LogWARN, "iface rm: ioctl(SIOCDIFADDR%s, %s -> %s): %s\n", 270 end, ncprange_ntoa(&addr->ifa), dst, strerror(errno)); 271 } 272 } 273 274 return res != -1; 275 } 276 277 static void 278 iface_addr_Add(const char *name, struct iface_addr *addr, int s) 279 { 280 struct ifaliasreq ifra; 281 #ifndef NOINET6 282 struct in6_aliasreq ifra6; 283 #endif 284 struct sockaddr_in *me4, *msk4, *peer4; 285 struct sockaddr_storage ssme, sspeer, ssmsk; 286 int res; 287 288 ncprange_getsa(&addr->ifa, &ssme, &ssmsk); 289 ncpaddr_getsa(&addr->peer, &sspeer); 290 res = 0; 291 292 switch (ncprange_family(&addr->ifa)) { 293 case AF_INET: 294 memset(&ifra, '\0', sizeof ifra); 295 strncpy(ifra.ifra_name, name, sizeof ifra.ifra_name - 1); 296 297 me4 = (struct sockaddr_in *)&ifra.ifra_addr; 298 memcpy(me4, &ssme, sizeof *me4); 299 300 msk4 = (struct sockaddr_in *)&ifra.ifra_mask; 301 memcpy(msk4, &ssmsk, sizeof *msk4); 302 303 peer4 = (struct sockaddr_in *)&ifra.ifra_broadaddr; 304 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) { 305 peer4->sin_family = AF_INET; 306 peer4->sin_len = sizeof(*peer4); 307 peer4->sin_addr.s_addr = INADDR_NONE; 308 } else 309 memcpy(peer4, &sspeer, sizeof *peer4); 310 311 res = ID0ioctl(s, SIOCAIFADDR, &ifra); 312 break; 313 314 #ifndef NOINET6 315 case AF_INET6: 316 memset(&ifra6, '\0', sizeof ifra6); 317 strncpy(ifra6.ifra_name, name, sizeof ifra6.ifra_name - 1); 318 319 memcpy(&ifra6.ifra_addr, &ssme, sizeof ifra6.ifra_addr); 320 memcpy(&ifra6.ifra_prefixmask, &ssmsk, sizeof ifra6.ifra_prefixmask); 321 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) 322 ifra6.ifra_dstaddr.sin6_family = AF_UNSPEC; 323 else 324 memcpy(&ifra6.ifra_dstaddr, &sspeer, sizeof ifra6.ifra_dstaddr); 325 ifra6.ifra_lifetime.ia6t_vltime = ND6_INFINITE_LIFETIME; 326 ifra6.ifra_lifetime.ia6t_pltime = ND6_INFINITE_LIFETIME; 327 328 res = ID0ioctl(s, SIOCAIFADDR_IN6, &ifra6); 329 break; 330 #endif 331 } 332 333 if (res == -1) { 334 char dst[40]; 335 const char *end = 336 #ifndef NOINET6 337 ncprange_family(&addr->ifa) == AF_INET6 ? "_IN6" : 338 #endif 339 ""; 340 341 if (ncpaddr_family(&addr->peer) == AF_UNSPEC) 342 log_Printf(LogWARN, "iface add: ioctl(SIOCAIFADDR%s, %s): %s\n", 343 end, ncprange_ntoa(&addr->ifa), strerror(errno)); 344 else { 345 snprintf(dst, sizeof dst, "%s", ncpaddr_ntoa(&addr->peer)); 346 log_Printf(LogWARN, "iface add: ioctl(SIOCDIFADDR%s, %s -> %s): %s\n", 347 end, ncprange_ntoa(&addr->ifa), dst, strerror(errno)); 348 } 349 } 350 } 351 352 353 void 354 iface_Clear(struct iface *iface, struct ncp *ncp, int family, int how) 355 { 356 int addrs, af, inskip, in6skip, n, s4 = -1, s6 = -1, *s; 357 358 if (iface->addrs) { 359 inskip = in6skip = how == IFACE_CLEAR_ALL ? 0 : 1; 360 addrs = 0; 361 362 for (n = 0; n < iface->addrs; n++) { 363 af = ncprange_family(&iface->addr[n].ifa); 364 if (family == 0 || family == af) { 365 if (!iface->addr[n].system && (how & IFACE_SYSTEM)) 366 continue; 367 switch (af) { 368 case AF_INET: 369 if (inskip) { 370 inskip = 0; 371 continue; 372 } 373 s = &s4; 374 break; 375 376 #ifndef NOINET6 377 case AF_INET6: 378 if (in6skip) { 379 in6skip = 0; 380 continue; 381 } 382 s = &s6; 383 break; 384 #endif 385 default: 386 continue; 387 } 388 389 if (*s == -1 && (*s = ID0socket(af, SOCK_DGRAM, 0)) == -1) 390 log_Printf(LogERROR, "iface_Clear: socket(): %s\n", strerror(errno)); 391 else if (iface_addr_Zap(iface->name, iface->addr + n, *s)) { 392 ncp_IfaceAddrDeleted(ncp, iface->addr + n); 393 bcopy(iface->addr + n + 1, iface->addr + n, 394 (iface->addrs - n - 1) * sizeof *iface->addr); 395 iface->addrs--; 396 n--; 397 } 398 } 399 } 400 401 /* Don't bother realloc()ing - we have little to gain */ 402 403 if (s4) 404 close(s4); 405 if (s6) 406 close(s6); 407 } 408 } 409 410 int 411 iface_Add(struct iface *iface, struct ncp *ncp, const struct ncprange *ifa, 412 const struct ncpaddr *peer, int how) 413 { 414 int af, n, s, width; 415 struct ncpaddr ifaddr, ncplocal; 416 struct iface_addr *addr; 417 418 af = ncprange_family(ifa); 419 if ((s = ID0socket(af, SOCK_DGRAM, 0)) == -1) { 420 log_Printf(LogERROR, "iface_Add: socket(): %s\n", strerror(errno)); 421 return 0; 422 } 423 ncprange_getaddr(ifa, &ncplocal); 424 425 for (n = 0; n < iface->addrs; n++) { 426 if (ncprange_contains(&iface->addr[n].ifa, &ncplocal) || 427 ncpaddr_equal(&iface->addr[n].peer, peer)) { 428 if (!(how & IFACE_FORCE_ADD)) { 429 close(s); 430 return 0; /* errno = EEXIST; */ 431 } 432 433 if (ncprange_equal(&iface->addr[n].ifa, ifa) && 434 ncpaddr_equal(&iface->addr[n].peer, peer)) { 435 close(s); 436 return 1; /* Already there */ 437 } 438 439 width = 440 #ifndef NOINET6 441 (af == AF_INET6) ? 128 : 442 #endif 443 32; 444 iface_addr_Zap(iface->name, iface->addr + n, s); 445 ncprange_setwidth(&iface->addr[n].ifa, width); 446 ncprange_getaddr(&iface->addr[n].ifa, &ifaddr); 447 if (ncpaddr_equal(&ifaddr, &ncplocal)) 448 ncpaddr_copy(&iface->addr[n].peer, peer); 449 else 450 ncpaddr_init(&iface->addr[n].peer); 451 iface_addr_Add(iface->name, iface->addr + n, s); 452 if (ncpaddr_equal(&ifaddr, &ncplocal)) { 453 close(s); 454 ncp_IfaceAddrAdded(ncp, iface->addr + n); 455 return 1; 456 } 457 } 458 } 459 460 addr = (struct iface_addr *)realloc 461 (iface->addr, (iface->addrs + 1) * sizeof iface->addr[0]); 462 if (addr == NULL) { 463 log_Printf(LogERROR, "iface_inAdd: realloc: %s\n", strerror(errno)); 464 close(s); 465 return 0; 466 } 467 iface->addr = addr; 468 469 if (how & IFACE_ADD_FIRST) { 470 /* Stuff it at the start of our list */ 471 n = 0; 472 bcopy(iface->addr, iface->addr + 1, iface->addrs * sizeof *iface->addr); 473 } else 474 n = iface->addrs; 475 476 iface->addrs++; 477 ncprange_copy(&iface->addr[n].ifa, ifa); 478 ncpaddr_copy(&iface->addr[n].peer, peer); 479 iface->addr[n].system = !!(how & IFACE_SYSTEM); 480 iface_addr_Add(iface->name, iface->addr + n, s); 481 482 close(s); 483 ncp_IfaceAddrAdded(ncp, iface->addr + n); 484 485 return 1; 486 } 487 488 int 489 iface_Delete(struct iface *iface, struct ncp *ncp, const struct ncpaddr *del) 490 { 491 struct ncpaddr found; 492 int n, res, s; 493 494 if ((s = ID0socket(ncpaddr_family(del), SOCK_DGRAM, 0)) == -1) { 495 log_Printf(LogERROR, "iface_Delete: socket(): %s\n", strerror(errno)); 496 return 0; 497 } 498 499 for (n = res = 0; n < iface->addrs; n++) { 500 ncprange_getaddr(&iface->addr[n].ifa, &found); 501 if (ncpaddr_equal(&found, del)) { 502 iface_addr_Zap(iface->name, iface->addr + n, s); 503 ncp_IfaceAddrDeleted(ncp, iface->addr + n); 504 bcopy(iface->addr + n + 1, iface->addr + n, 505 (iface->addrs - n - 1) * sizeof *iface->addr); 506 iface->addrs--; 507 res = 1; 508 break; 509 } 510 } 511 512 close(s); 513 514 return res; 515 } 516 517 #define IFACE_ADDFLAGS 1 518 #define IFACE_DELFLAGS 2 519 520 static int 521 iface_ChangeFlags(const char *ifname, int flags, int how) 522 { 523 struct ifreq ifrq; 524 int s; 525 526 s = ID0socket(AF_INET, SOCK_DGRAM, 0); 527 if (s < 0) { 528 log_Printf(LogERROR, "iface_ChangeFlags: socket: %s\n", strerror(errno)); 529 return 0; 530 } 531 532 memset(&ifrq, '\0', sizeof ifrq); 533 strncpy(ifrq.ifr_name, ifname, sizeof ifrq.ifr_name - 1); 534 ifrq.ifr_name[sizeof ifrq.ifr_name - 1] = '\0'; 535 if (ID0ioctl(s, SIOCGIFFLAGS, &ifrq) < 0) { 536 log_Printf(LogERROR, "iface_ChangeFlags: ioctl(SIOCGIFFLAGS): %s\n", 537 strerror(errno)); 538 close(s); 539 return 0; 540 } 541 542 if (how == IFACE_ADDFLAGS) 543 ifrq.ifr_flags |= flags; 544 else 545 ifrq.ifr_flags &= ~flags; 546 547 if (ID0ioctl(s, SIOCSIFFLAGS, &ifrq) < 0) { 548 log_Printf(LogERROR, "iface_ChangeFlags: ioctl(SIOCSIFFLAGS): %s\n", 549 strerror(errno)); 550 close(s); 551 return 0; 552 } 553 close(s); 554 555 return 1; /* Success */ 556 } 557 558 int 559 iface_SetFlags(const char *ifname, int flags) 560 { 561 return iface_ChangeFlags(ifname, flags, IFACE_ADDFLAGS); 562 } 563 564 int 565 iface_ClearFlags(const char *ifname, int flags) 566 { 567 return iface_ChangeFlags(ifname, flags, IFACE_DELFLAGS); 568 } 569 570 void 571 iface_Destroy(struct iface *iface) 572 { 573 /* 574 * iface_Clear(iface, IFACE_CLEAR_ALL) must be called manually 575 * if that's what the user wants. It's better to leave the interface 576 * allocated so that existing connections can continue to work. 577 */ 578 579 if (iface != NULL) { 580 free(iface->name); 581 free(iface->addr); 582 free(iface); 583 } 584 } 585 586 #define if_entry(x) { IFF_##x, #x } 587 588 struct { 589 int flag; 590 const char *value; 591 } if_flags[] = { 592 if_entry(UP), 593 if_entry(BROADCAST), 594 if_entry(DEBUG), 595 if_entry(LOOPBACK), 596 if_entry(POINTOPOINT), 597 if_entry(RUNNING), 598 if_entry(NOARP), 599 if_entry(PROMISC), 600 if_entry(ALLMULTI), 601 if_entry(OACTIVE), 602 if_entry(SIMPLEX), 603 if_entry(LINK0), 604 if_entry(LINK1), 605 if_entry(LINK2), 606 if_entry(MULTICAST), 607 { 0, "???" } 608 }; 609 610 int 611 iface_Show(struct cmdargs const *arg) 612 { 613 struct ncpaddr ncpaddr; 614 struct iface *iface = arg->bundle->iface, *current; 615 int f, flags; 616 #ifndef NOINET6 617 int scopeid, width; 618 #endif 619 struct in_addr mask; 620 621 current = iface_Create(iface->name); 622 flags = iface->flags = current->flags; 623 iface_Destroy(current); 624 625 prompt_Printf(arg->prompt, "%s (idx %d) <", iface->name, iface->index); 626 for (f = 0; f < sizeof if_flags / sizeof if_flags[0]; f++) 627 if ((if_flags[f].flag & flags)) { 628 prompt_Printf(arg->prompt, "%s%s", flags == iface->flags ? "" : ",", 629 if_flags[f].value); 630 flags &= ~if_flags[f].flag; 631 } 632 633 #if 0 634 if (flags) 635 prompt_Printf(arg->prompt, "%s0x%x", flags == iface->flags ? "" : ",", 636 flags); 637 #endif 638 639 prompt_Printf(arg->prompt, "> mtu %d has %d address%s:\n", iface->mtu, 640 iface->addrs, iface->addrs == 1 ? "" : "es"); 641 642 for (f = 0; f < iface->addrs; f++) { 643 ncprange_getaddr(&iface->addr[f].ifa, &ncpaddr); 644 switch (ncprange_family(&iface->addr[f].ifa)) { 645 case AF_INET: 646 prompt_Printf(arg->prompt, " inet %s --> ", ncpaddr_ntoa(&ncpaddr)); 647 if (ncpaddr_family(&iface->addr[f].peer) == AF_UNSPEC) 648 prompt_Printf(arg->prompt, "255.255.255.255"); 649 else 650 prompt_Printf(arg->prompt, "%s", ncpaddr_ntoa(&iface->addr[f].peer)); 651 ncprange_getip4mask(&iface->addr[f].ifa, &mask); 652 prompt_Printf(arg->prompt, " netmask 0x%08lx", (long)ntohl(mask.s_addr)); 653 break; 654 655 #ifndef NOINET6 656 case AF_INET6: 657 prompt_Printf(arg->prompt, " inet6 %s", ncpaddr_ntoa(&ncpaddr)); 658 if (ncpaddr_family(&iface->addr[f].peer) != AF_UNSPEC) 659 prompt_Printf(arg->prompt, " --> %s", 660 ncpaddr_ntoa(&iface->addr[f].peer)); 661 ncprange_getwidth(&iface->addr[f].ifa, &width); 662 if (ncpaddr_family(&iface->addr[f].peer) == AF_UNSPEC) 663 prompt_Printf(arg->prompt, " prefixlen %d", width); 664 if ((scopeid = ncprange_scopeid(&iface->addr[f].ifa)) != -1) 665 prompt_Printf(arg->prompt, " scopeid 0x%x", (unsigned)scopeid); 666 break; 667 #endif 668 } 669 prompt_Printf(arg->prompt, "\n"); 670 } 671 672 return 0; 673 } 674 675 void 676 iface_ParseHdr(struct ifa_msghdr *ifam, struct sockaddr *sa[RTAX_MAX]) 677 { 678 char *wp; 679 int rtax; 680 681 wp = (char *)(ifam + 1); 682 683 for (rtax = 0; rtax < RTAX_MAX; rtax++) 684 if (ifam->ifam_addrs & (1 << rtax)) { 685 sa[rtax] = (struct sockaddr *)wp; 686 wp += ROUNDUP(sa[rtax]->sa_len); 687 } else 688 sa[rtax] = NULL; 689 } 690