zebra/interface.c

   1 /*
   2  * Interface function.
   3  * Copyright (C) 1997, 1999 Kunihiro Ishiguro
   4  *
   5  * This file is part of GNU Zebra.
   6  *
   7  * GNU Zebra is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * GNU Zebra is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with GNU Zebra; see the file COPYING.  If not, write to the Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  */
  22
  23 #include <zebra.h>
  24
  25 #include "if.h"
  26 #include "vty.h"
  27 #include "sockunion.h"
  28 #include "prefix.h"
  29 #include "command.h"
  30 #include "memory.h"
  31 #include "ioctl.h"
  32 #include "connected.h"
  33 #include "log.h"
  34 #include "zclient.h"
  35
  36 #include "zebra/interface.h"
  37 #include "zebra/rtadv.h"
  38 #include "zebra/rib.h"
  39 #include "zebra/zserv.h"
  40 #include "zebra/redistribute.h"
  41 #include "zebra/debug.h"
  42 #include "zebra/irdp.h"
  43 \f
  44 /* Allocate a new internal interface index
  45  * This works done from the top so that %d macros
  46  * print a - sign!
  47  */
  48 static unsigned int
  49 if_new_intern_ifindex (void)
  50 {
  51   /* Start here so that first one assigned is 0xFFFFFFFF */
  52   static unsigned int ifindex = IFINDEX_INTERNBASE + 1;
  53
  54   for (;;)
  55     {
  56       ifindex--;
  57       if ( ifindex <= IFINDEX_INTERNBASE )
  58        ifindex = 0xFFFFFFFF;
  59
  60       if (if_lookup_by_index(ifindex) == NULL)
  61        return ifindex;
  62     }
  63 }
  64
  65 /* Called when new interface is added. */
  66 int
  67 if_zebra_new_hook (struct interface *ifp)
  68 {
  69   struct zebra_if *zebra_if;
  70
  71   zebra_if = XMALLOC (MTYPE_TMP, sizeof (struct zebra_if));
  72   memset (zebra_if, 0, sizeof (struct zebra_if));
  73
  74   zebra_if->multicast = IF_ZEBRA_MULTICAST_UNSPEC;
  75   zebra_if->shutdown = IF_ZEBRA_SHUTDOWN_UNSPEC;
  76
  77 #ifdef RTADV
  78   {
  79     /* Set default router advertise values. */
  80     struct rtadvconf *rtadv;
  81
  82     rtadv = &zebra_if->rtadv;
  83
  84     rtadv->AdvSendAdvertisements = 0;
  85     rtadv->MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL;
  86     rtadv->MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL;
  87     rtadv->AdvIntervalTimer = 0;
  88     rtadv->AdvManagedFlag = 0;
  89     rtadv->AdvOtherConfigFlag = 0;
  90     rtadv->AdvLinkMTU = 0;
  91     rtadv->AdvReachableTime = 0;
  92     rtadv->AdvRetransTimer = 0;
  93     rtadv->AdvCurHopLimit = 0;
  94     rtadv->AdvDefaultLifetime = RTADV_ADV_DEFAULT_LIFETIME;
  95
  96     rtadv->AdvPrefixList = list_new ();
  97   }
  98 #endif /* RTADV */
  99
 100   ifp->info = zebra_if;
 101   return 0;
 102 }
 103
 104 /* Called when interface is deleted. */
 105 int
 106 if_zebra_delete_hook (struct interface *ifp)
 107 {
 108   if (ifp->info)
 109     XFREE (MTYPE_TMP, ifp->info);
 110   return 0;
 111 }
 112
 113 /* Wake up configured address if it is not in current kernel
 114    address. */
 115 void
 116 if_addr_wakeup (struct interface *ifp)
 117 {
 118   struct listnode *node;
 119   struct connected *ifc;
 120   struct prefix *p;
 121   int ret;
 122
 123   for (node = listhead (ifp->connected); node; nextnode (node))
 124     {
 125       ifc = getdata (node);
 126       p = ifc->address;
 127
 128       if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED)
 129           && ! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
 130         {
 131           /* Address check. */
 132           if (p->family == AF_INET)
 133             {
 134               if (! if_is_up (ifp))
 135                 {
 136                   if_set_flags (ifp, IFF_UP | IFF_RUNNING);
 137                   if_refresh (ifp);
 138                 }
 139
 140               ret = if_set_prefix (ifp, ifc);
 141               if (ret < 0)
 142                 {
 143                   zlog_warn ("Can't set interface's address: %s",
 144                              strerror(errno));
 145                   continue;
 146                 }
 147               SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
 148
 149               zebra_interface_address_add_update (ifp, ifc);
 150
 151               if (if_is_operative(ifp))
 152                 connected_up_ipv4 (ifp, ifc);
 153             }
 154 #ifdef HAVE_IPV6
 155           if (p->family == AF_INET6)
 156             {
 157               if (! if_is_up (ifp))
 158                 {
 159                   if_set_flags (ifp, IFF_UP | IFF_RUNNING);
 160                   if_refresh (ifp);
 161                 }
 162
 163               ret = if_prefix_add_ipv6 (ifp, ifc);
 164               if (ret < 0)
 165                 {
 166                   zlog_warn ("Can't set interface's address: %s",
 167                              strerror(errno));
 168                   continue;
 169                 }
 170               SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
 171
 172               zebra_interface_address_add_update (ifp, ifc);
 173
 174               if (if_is_operative(ifp))
 175                 connected_up_ipv6 (ifp, ifc);
 176             }
 177 #endif /* HAVE_IPV6 */
 178         }
 179     }
 180 }
 181
 182 /* Handle interface addition */
 183 void
 184 if_add_update (struct interface *ifp)
 185 {
 186   struct zebra_if *if_data;
 187
 188   if_data = ifp->info;
 189   if (if_data->multicast == IF_ZEBRA_MULTICAST_ON)
 190     if_set_flags (ifp, IFF_MULTICAST);
 191   else if (if_data->multicast == IF_ZEBRA_MULTICAST_OFF)
 192     if_unset_flags (ifp, IFF_MULTICAST);
 193
 194   zebra_interface_add_update (ifp);
 195
 196   if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
 197     {
 198       SET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
 199
 200       if_addr_wakeup (ifp);
 201
 202       if (IS_ZEBRA_DEBUG_KERNEL)
 203         zlog_info ("interface %s index %d becomes active.",
 204                    ifp->name, ifp->ifindex);
 205     }
 206   else
 207     {
 208       if (IS_ZEBRA_DEBUG_KERNEL)
 209         zlog_info ("interface %s index %d is added.", ifp->name, ifp->ifindex);
 210     }
 211 }
 212
 213
 214 /* Handle an interface delete event
 215  *
 216  * This function is only called  when support for
 217  * RTM_IFANNOUNCE or AF_NETLINK sockets (RTM_DELLINK message)
 218  * is available. It is not called on, eg, Solaris.
 219  */
 220 #if (defined(RTM_IFANNOUNCE) || defined(HAVE_NETLINK))
 221 void
 222 if_delete_update (struct interface *ifp)
 223 {
 224   struct listnode *node;
 225   struct listnode *next;
 226   struct connected *ifc;
 227   struct prefix *p;
 228
 229   if (if_is_up(ifp))
 230     {
 231       zlog_err ("interface %s index %d is still up while being deleted.",
 232             ifp->name, ifp->ifindex);
 233       return;
 234     }
 235
 236   /* Mark interface as inactive */
 237   UNSET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
 238
 239   if (IS_ZEBRA_DEBUG_KERNEL)
 240     zlog_info ("interface %s index %d is now inactive.",
 241                ifp->name, ifp->ifindex);
 242
 243   /* Delete connected routes from the kernel. */
 244   if (ifp->connected)
 245     {
 246       for (node = listhead (ifp->connected); node; node = next)
 247         {
 248           next = node->next;
 249           ifc = getdata (node);
 250           p = ifc->address;
 251
 252           if (p->family == AF_INET)
 253             connected_down_ipv4 (ifp, ifc);
 254 #ifdef HAVE_IPV6
 255           else if (p->family == AF_INET6)
 256             connected_down_ipv6 (ifp, ifc);
 257 #endif /* HAVE_IPV6 */
 258
 259           zebra_interface_address_delete_update (ifp, ifc);
 260
 261           UNSET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
 262
 263           if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
 264             {
 265               listnode_delete (ifp->connected, ifc);
 266               connected_free (ifc);
 267             }
 268         }
 269     }
 270   zebra_interface_delete_update (ifp);
 271 }
 272 #endif /* (defined(RTM_IFANNOUNCE) || defined(HAVE_NETLINK) */
 273
 274 /* Interface is up. */
 275 void
 276 if_up (struct interface *ifp)
 277 {
 278   listnode node;
 279   listnode next;
 280   struct connected *ifc;
 281   struct prefix *p;
 282
 283   /* Notify the protocol daemons. */
 284   zebra_interface_up_update (ifp);
 285
 286   /* Install connected routes to the kernel. */
 287   if (ifp->connected)
 288     {
 289       for (node = listhead (ifp->connected); node; node = next)
 290         {
 291           next = node->next;
 292           ifc = getdata (node);
 293           p = ifc->address;
 294
 295           if (p->family == AF_INET)
 296             connected_up_ipv4 (ifp, ifc);
 297 #ifdef HAVE_IPV6
 298           else if (p->family == AF_INET6)
 299             connected_up_ipv6 (ifp, ifc);
 300 #endif /* HAVE_IPV6 */
 301         }
 302     }
 303
 304   /* Examine all static routes. */
 305   rib_update ();
 306 }
 307
 308 /* Interface goes down.  We have to manage different behavior of based
 309    OS. */
 310 void
 311 if_down (struct interface *ifp)
 312 {
 313   listnode node;
 314   listnode next;
 315   struct connected *ifc;
 316   struct prefix *p;
 317
 318   /* Notify to the protocol daemons. */
 319   zebra_interface_down_update (ifp);
 320
 321   /* Delete connected routes from the kernel. */
 322   if (ifp->connected)
 323     {
 324       for (node = listhead (ifp->connected); node; node = next)
 325         {
 326           next = node->next;
 327           ifc = getdata (node);
 328           p = ifc->address;
 329
 330           if (p->family == AF_INET)
 331             connected_down_ipv4 (ifp, ifc);
 332 #ifdef HAVE_IPV6
 333           else if (p->family == AF_INET6)
 334             connected_down_ipv6 (ifp, ifc);
 335 #endif /* HAVE_IPV6 */
 336         }
 337     }
 338
 339   /* Examine all static routes which direct to the interface. */
 340   rib_update ();
 341 }
 342
 343 void
 344 if_refresh (struct interface *ifp)
 345 {
 346   if (if_is_operative (ifp))
 347     {
 348       if_get_flags (ifp);
 349       if (! if_is_operative (ifp))
 350         if_down (ifp);
 351     }
 352   else
 353     {
 354       if_get_flags (ifp);
 355       if (if_is_operative (ifp))
 356         if_up (ifp);
 357     }
 358 }
 359
 360 /* Printout flag information into vty */
 361 void
 362 if_flag_dump_vty (struct vty *vty, unsigned long flag)
 363 {
 364   int separator = 0;
 365
 366 #define IFF_OUT_VTY(X, Y) \
 367   if ((X) && (flag & (X))) \
 368     { \
 369       if (separator) \
 370         vty_out (vty, ","); \
 371       else \
 372         separator = 1; \
 373       vty_out (vty, Y); \
 374     }
 375
 376   vty_out (vty, "<");
 377   IFF_OUT_VTY (IFF_UP, "UP");
 378   IFF_OUT_VTY (IFF_BROADCAST, "BROADCAST");
 379   IFF_OUT_VTY (IFF_DEBUG, "DEBUG");
 380   IFF_OUT_VTY (IFF_LOOPBACK, "LOOPBACK");
 381   IFF_OUT_VTY (IFF_POINTOPOINT, "POINTOPOINT");
 382   IFF_OUT_VTY (IFF_NOTRAILERS, "NOTRAILERS");
 383   IFF_OUT_VTY (IFF_RUNNING, "RUNNING");
 384   IFF_OUT_VTY (IFF_NOARP, "NOARP");
 385   IFF_OUT_VTY (IFF_PROMISC, "PROMISC");
 386   IFF_OUT_VTY (IFF_ALLMULTI, "ALLMULTI");
 387   IFF_OUT_VTY (IFF_OACTIVE, "OACTIVE");
 388   IFF_OUT_VTY (IFF_SIMPLEX, "SIMPLEX");
 389   IFF_OUT_VTY (IFF_LINK0, "LINK0");
 390   IFF_OUT_VTY (IFF_LINK1, "LINK1");
 391   IFF_OUT_VTY (IFF_LINK2, "LINK2");
 392   IFF_OUT_VTY (IFF_MULTICAST, "MULTICAST");
 393 #ifdef SOLARIS_IPV6
 394   IFF_OUT_VTY (IFF_IPV4, "IFF_IPv4");
 395   IFF_OUT_VTY (IFF_IPV6, "IFF_IPv6");
 396 #endif /* SOLARIS_IPV6 */
 397   vty_out (vty, ">");
 398 }
 399
 400 /* Output prefix string to vty. */
 401 int
 402 prefix_vty_out (struct vty *vty, struct prefix *p)
 403 {
 404   char str[INET6_ADDRSTRLEN];
 405
 406   inet_ntop (p->family, &p->u.prefix, str, sizeof (str));
 407   vty_out (vty, "%s", str);
 408   return strlen (str);
 409 }
 410
 411 /* Dump if address information to vty. */
 412 void
 413 connected_dump_vty (struct vty *vty, struct connected *connected)
 414 {
 415   struct prefix *p;
 416   struct interface *ifp;
 417
 418   /* Set interface pointer. */
 419   ifp = connected->ifp;
 420
 421   /* Print interface address. */
 422   p = connected->address;
 423   vty_out (vty, "  %s ", prefix_family_str (p));
 424   prefix_vty_out (vty, p);
 425   vty_out (vty, "/%d", p->prefixlen);
 426
 427   /* If there is destination address, print it. */
 428   p = connected->destination;
 429   if (p)
 430     {
 431       if (p->family == AF_INET)
 432         if (ifp->flags & IFF_BROADCAST)
 433           {
 434             vty_out (vty, " broadcast ");
 435             prefix_vty_out (vty, p);
 436           }
 437
 438       if (ifp->flags & IFF_POINTOPOINT)
 439         {
 440           vty_out (vty, " pointopoint ");
 441           prefix_vty_out (vty, p);
 442         }
 443     }
 444
 445   if (CHECK_FLAG (connected->flags, ZEBRA_IFA_SECONDARY))
 446     vty_out (vty, " secondary");
 447
 448   if (connected->label)
 449     vty_out (vty, " %s", connected->label);
 450
 451   vty_out (vty, "%s", VTY_NEWLINE);
 452 }
 453
 454 #ifdef RTADV
 455 /* Dump interface ND information to vty. */
 456 void
 457 nd_dump_vty (struct vty *vty, struct interface *ifp)
 458 {
 459   struct zebra_if *zif;
 460   struct rtadvconf *rtadv;
 461
 462   zif = (struct zebra_if *) ifp->info;
 463   rtadv = &zif->rtadv;
 464
 465   if (rtadv->AdvSendAdvertisements)
 466     {
 467       vty_out (vty, "  ND advertised reachable time is %d milliseconds%s",
 468                rtadv->AdvReachableTime, VTY_NEWLINE);
 469       vty_out (vty, "  ND advertised retransmit interval is %d milliseconds%s",
 470                rtadv->AdvRetransTimer, VTY_NEWLINE);
 471       vty_out (vty, "  ND router advertisements are sent every %d seconds%s",
 472                rtadv->MaxRtrAdvInterval, VTY_NEWLINE);
 473       vty_out (vty, "  ND router advertisements live for %d seconds%s",
 474                rtadv->AdvDefaultLifetime, VTY_NEWLINE);
 475       if (rtadv->AdvManagedFlag)
 476         vty_out (vty, "  Hosts use DHCP to obtain routable addresses.%s",
 477                  VTY_NEWLINE);
 478       else
 479         vty_out (vty, "  Hosts use stateless autoconfig for addresses.%s",
 480                  VTY_NEWLINE);
 481     }
 482 }
 483 #endif /* RTADV */
 484
 485 /* Interface's information print out to vty interface. */
 486 void
 487 if_dump_vty (struct vty *vty, struct interface *ifp)
 488 {
 489 #ifdef HAVE_SOCKADDR_DL
 490   struct sockaddr_dl *sdl;
 491 #endif /* HAVE_SOCKADDR_DL */
 492   struct connected *connected;
 493   listnode node;
 494
 495   vty_out (vty, "Interface %s is ", ifp->name);
 496   if (if_is_up(ifp)) {
 497     vty_out (vty, "up, line protocol ");
 498
 499     if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION)) {
 500       if (if_is_running(ifp))
 501        vty_out (vty, "is up%s", VTY_NEWLINE);
 502       else
 503         vty_out (vty, "is down%s", VTY_NEWLINE);
 504     } else {
 505       vty_out (vty, "detection is disabled%s", VTY_NEWLINE);
 506     }
 507   } else {
 508     vty_out (vty, "down%s", VTY_NEWLINE);
 509   }
 510
 511   if (ifp->desc)
 512     vty_out (vty, "  Description: %s%s", ifp->desc,
 513              VTY_NEWLINE);
 514   if (ifp->ifindex <= 0)
 515     {
 516       vty_out(vty, "  index %d pseudo interface%s", ifp->ifindex, VTY_NEWLINE);
 517       return;
 518     }
 519   else if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
 520     {
 521       vty_out(vty, "  index %d inactive interface%s",
 522               ifp->ifindex,
 523               VTY_NEWLINE);
 524       return;
 525     }
 526
 527   vty_out (vty, "  index %d metric %d mtu %d ",
 528            ifp->ifindex, ifp->metric, ifp->mtu);
 529   if_flag_dump_vty (vty, ifp->flags);
 530 #ifdef HAVE_IPV6
 531   if (ifp->mtu6 != ifp->mtu)
 532     vty_out (vty, "mtu6 %d ", ifp->mtu6);
 533 #endif
 534
 535   vty_out (vty, "%s", VTY_NEWLINE);
 536
 537   /* Hardware address. */
 538 #ifdef HAVE_SOCKADDR_DL
 539   sdl = &ifp->sdl;
 540   if (sdl != NULL && sdl->sdl_alen != 0)
 541     {
 542       int i;
 543       u_char *ptr;
 544
 545       vty_out (vty, "  HWaddr: ");
 546       for (i = 0, ptr = (u_char *)LLADDR (sdl); i < sdl->sdl_alen; i++, ptr++)
 547         vty_out (vty, "%s%02x", i == 0 ? "" : ":", *ptr);
 548       vty_out (vty, "%s", VTY_NEWLINE);
 549     }
 550 #else
 551   if (ifp->hw_addr_len != 0)
 552     {
 553       int i;
 554
 555       vty_out (vty, "  HWaddr: ");
 556       for (i = 0; i < ifp->hw_addr_len; i++)
 557         vty_out (vty, "%s%02x", i == 0 ? "" : ":", ifp->hw_addr[i]);
 558       vty_out (vty, "%s", VTY_NEWLINE);
 559     }
 560 #endif /* HAVE_SOCKADDR_DL */
 561
 562   /* Bandwidth in kbps */
 563   if (ifp->bandwidth != 0)
 564     {
 565       vty_out(vty, "  bandwidth %u kbps", ifp->bandwidth);
 566       vty_out(vty, "%s", VTY_NEWLINE);
 567     }
 568
 569   for (node = listhead (ifp->connected); node; nextnode (node))
 570     {
 571       connected = getdata (node);
 572       if (CHECK_FLAG (connected->conf, ZEBRA_IFC_REAL))
 573         connected_dump_vty (vty, connected);
 574     }
 575
 576 #ifdef RTADV
 577   nd_dump_vty (vty, ifp);
 578 #endif /* RTADV */
 579
 580 #ifdef HAVE_PROC_NET_DEV
 581   /* Statistics print out using proc file system. */
 582   vty_out (vty, "    input packets %lu, bytes %lu, dropped %lu,"
 583            " multicast packets %lu%s",
 584            ifp->stats.rx_packets, ifp->stats.rx_bytes,
 585            ifp->stats.rx_dropped, ifp->stats.rx_multicast, VTY_NEWLINE);
 586
 587   vty_out (vty, "    input errors %lu, length %lu, overrun %lu,"
 588            " CRC %lu, frame %lu, fifo %lu, missed %lu%s",
 589            ifp->stats.rx_errors, ifp->stats.rx_length_errors,
 590            ifp->stats.rx_over_errors, ifp->stats.rx_crc_errors,
 591            ifp->stats.rx_frame_errors, ifp->stats.rx_fifo_errors,
 592            ifp->stats.rx_missed_errors, VTY_NEWLINE);
 593
 594   vty_out (vty, "    output packets %lu, bytes %lu, dropped %lu%s",
 595            ifp->stats.tx_packets, ifp->stats.tx_bytes,
 596            ifp->stats.tx_dropped, VTY_NEWLINE);
 597
 598   vty_out (vty, "    output errors %lu, aborted %lu, carrier %lu,"
 599            " fifo %lu, heartbeat %lu, window %lu%s",
 600            ifp->stats.tx_errors, ifp->stats.tx_aborted_errors,
 601            ifp->stats.tx_carrier_errors, ifp->stats.tx_fifo_errors,
 602            ifp->stats.tx_heartbeat_errors, ifp->stats.tx_window_errors,
 603            VTY_NEWLINE);
 604
 605   vty_out (vty, "    collisions %lu%s", ifp->stats.collisions, VTY_NEWLINE);
 606 #endif /* HAVE_PROC_NET_DEV */
 607
 608 #ifdef HAVE_NET_RT_IFLIST
 609 #if defined (__bsdi__) || defined (__NetBSD__)
 610   /* Statistics print out using sysctl (). */
 611   vty_out (vty, "    input packets %qu, bytes %qu, dropped %qu,"
 612            " multicast packets %qu%s",
 613            ifp->stats.ifi_ipackets, ifp->stats.ifi_ibytes,
 614            ifp->stats.ifi_iqdrops, ifp->stats.ifi_imcasts,
 615            VTY_NEWLINE);
 616
 617   vty_out (vty, "    input errors %qu%s",
 618            ifp->stats.ifi_ierrors, VTY_NEWLINE);
 619
 620   vty_out (vty, "    output packets %qu, bytes %qu, multicast packets %qu%s",
 621            ifp->stats.ifi_opackets, ifp->stats.ifi_obytes,
 622            ifp->stats.ifi_omcasts, VTY_NEWLINE);
 623
 624   vty_out (vty, "    output errors %qu%s",
 625            ifp->stats.ifi_oerrors, VTY_NEWLINE);
 626
 627   vty_out (vty, "    collisions %qu%s",
 628            ifp->stats.ifi_collisions, VTY_NEWLINE);
 629 #else
 630   /* Statistics print out using sysctl (). */
 631   vty_out (vty, "    input packets %lu, bytes %lu, dropped %lu,"
 632            " multicast packets %lu%s",
 633            ifp->stats.ifi_ipackets, ifp->stats.ifi_ibytes,
 634            ifp->stats.ifi_iqdrops, ifp->stats.ifi_imcasts,
 635            VTY_NEWLINE);
 636
 637   vty_out (vty, "    input errors %lu%s",
 638            ifp->stats.ifi_ierrors, VTY_NEWLINE);
 639
 640   vty_out (vty, "    output packets %lu, bytes %lu, multicast packets %lu%s",
 641            ifp->stats.ifi_opackets, ifp->stats.ifi_obytes,
 642            ifp->stats.ifi_omcasts, VTY_NEWLINE);
 643
 644   vty_out (vty, "    output errors %lu%s",
 645            ifp->stats.ifi_oerrors, VTY_NEWLINE);
 646
 647   vty_out (vty, "    collisions %lu%s",
 648            ifp->stats.ifi_collisions, VTY_NEWLINE);
 649 #endif /* __bsdi__ || __NetBSD__ */
 650 #endif /* HAVE_NET_RT_IFLIST */
 651 }
 652
 653 /* Check supported address family. */
 654 int
 655 if_supported_family (int family)
 656 {
 657   if (family == AF_INET)
 658     return 1;
 659 #ifdef HAVE_IPV6
 660   if (family == AF_INET6)
 661     return 1;
 662 #endif /* HAVE_IPV6 */
 663   return 0;
 664 }
 665
 666 /* Wrapper hook point for zebra daemon so that ifindex can be set
 667  * DEFUN macro not used as extract.pl HAS to ignore this
 668  * See also interface_cmd in lib/if.c
 669  */
 670 DEFUN_NOSH (zebra_interface,
 671             zebra_interface_cmd,
 672             "interface IFNAME",
 673             "Select an interface to configure\n"
 674             "Interface's name\n")
 675 {
 676   int ret;
 677   struct interface * ifp;
 678
 679   /* Call lib interface() */
 680   ret = interface_cmd.func (self, vty, argc, argv);
 681
 682   ifp = vty->index;
 683
 684   /* Set ifindex
 685      this only happens if interface is NOT in kernel */
 686   if (ifp->ifindex == 0)
 687     {
 688       ifp->ifindex = if_new_intern_ifindex ();
 689       UNSET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
 690     }
 691
 692   return ret;
 693 }
 694
 695 struct cmd_node interface_node =
 696 {
 697   INTERFACE_NODE,
 698   "%s(config-if)# ",
 699   1
 700 };
 701
 702 /* Show all or specified interface to vty. */
 703 DEFUN (show_interface, show_interface_cmd,
 704        "show interface [IFNAME]",
 705        SHOW_STR
 706        "Interface status and configuration\n"
 707        "Inteface name\n")
 708 {
 709   listnode node;
 710   struct interface *ifp;
 711
 712 #ifdef HAVE_PROC_NET_DEV
 713   /* If system has interface statistics via proc file system, update
 714      statistics. */
 715   ifstat_update_proc ();
 716 #endif /* HAVE_PROC_NET_DEV */
 717 #ifdef HAVE_NET_RT_IFLIST
 718   ifstat_update_sysctl ();
 719 #endif /* HAVE_NET_RT_IFLIST */
 720
 721   /* Specified interface print. */
 722   if (argc != 0)
 723     {
 724       ifp = if_lookup_by_name (argv[0]);
 725       if (ifp == NULL)
 726         {
 727           vty_out (vty, "%% Can't find interface %s%s", argv[0],
 728                    VTY_NEWLINE);
 729           return CMD_WARNING;
 730         }
 731       if_dump_vty (vty, ifp);
 732       return CMD_SUCCESS;
 733     }
 734
 735   /* All interface print. */
 736   for (node = listhead (iflist); node; nextnode (node))
 737     if_dump_vty (vty, getdata (node));
 738
 739   return CMD_SUCCESS;
 740 }
 741
 742 DEFUN (multicast,
 743        multicast_cmd,
 744        "multicast",
 745        "Set multicast flag to interface\n")
 746 {
 747   int ret;
 748   struct interface *ifp;
 749   struct zebra_if *if_data;
 750
 751   ifp = (struct interface *) vty->index;
 752   if (CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
 753     {
 754       ret = if_set_flags (ifp, IFF_MULTICAST);
 755       if (ret < 0)
 756         {
 757           vty_out (vty, "Can't set multicast flag%s", VTY_NEWLINE);
 758           return CMD_WARNING;
 759         }
 760       if_refresh (ifp);
 761     }
 762   if_data = ifp->info;
 763   if_data->multicast = IF_ZEBRA_MULTICAST_ON;
 764
 765   return CMD_SUCCESS;
 766 }
 767
 768 DEFUN (no_multicast,
 769        no_multicast_cmd,
 770        "no multicast",
 771        NO_STR
 772        "Unset multicast flag to interface\n")
 773 {
 774   int ret;
 775   struct interface *ifp;
 776   struct zebra_if *if_data;
 777
 778   ifp = (struct interface *) vty->index;
 779   if (CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
 780     {
 781       ret = if_unset_flags (ifp, IFF_MULTICAST);
 782       if (ret < 0)
 783         {
 784           vty_out (vty, "Can't unset multicast flag%s", VTY_NEWLINE);
 785           return CMD_WARNING;
 786         }
 787       if_refresh (ifp);
 788     }
 789   if_data = ifp->info;
 790   if_data->multicast = IF_ZEBRA_MULTICAST_OFF;
 791
 792   return CMD_SUCCESS;
 793 }
 794
 795 DEFUN (linkdetect,
 796        linkdetect_cmd,
 797        "link-detect",
 798        "Enable link detection on interface\n")
 799 {
 800   struct interface *ifp;
 801   int if_was_operative;
 802
 803   ifp = (struct interface *) vty->index;
 804   if_was_operative = if_is_operative(ifp);
 805   SET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION);
 806
 807   /* When linkdetection is enabled, if might come down */
 808   if (!if_is_operative(ifp) && if_was_operative) if_down(ifp);
 809
 810   /* FIXME: Will defer status change forwarding if interface
 811      does not come down! */
 812
 813   return CMD_SUCCESS;
 814 }
 815
 816
 817 DEFUN (no_linkdetect,
 818        no_linkdetect_cmd,
 819        "no link-detect",
 820        NO_STR
 821        "Disable link detection on interface\n")
 822 {
 823   struct interface *ifp;
 824   int if_was_operative;
 825
 826   ifp = (struct interface *) vty->index;
 827   if_was_operative = if_is_operative(ifp);
 828   UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION);
 829
 830   /* Interface may come up after disabling link detection */
 831   if (if_is_operative(ifp) && !if_was_operative) if_up(ifp);
 832
 833   /* FIXME: see linkdetect_cmd */
 834
 835   return CMD_SUCCESS;
 836 }
 837
 838 DEFUN (shutdown_if,
 839        shutdown_if_cmd,
 840        "shutdown",
 841        "Shutdown the selected interface\n")
 842 {
 843   int ret;
 844   struct interface *ifp;
 845   struct zebra_if *if_data;
 846
 847   ifp = (struct interface *) vty->index;
 848   ret = if_unset_flags (ifp, IFF_UP);
 849   if (ret < 0)
 850     {
 851       vty_out (vty, "Can't shutdown interface%s", VTY_NEWLINE);
 852       return CMD_WARNING;
 853     }
 854   if_refresh (ifp);
 855   if_data = ifp->info;
 856   if_data->shutdown = IF_ZEBRA_SHUTDOWN_ON;
 857
 858   return CMD_SUCCESS;
 859 }
 860
 861 DEFUN (no_shutdown_if,
 862        no_shutdown_if_cmd,
 863        "no shutdown",
 864        NO_STR
 865        "Shutdown the selected interface\n")
 866 {
 867   int ret;
 868   struct interface *ifp;
 869   struct zebra_if *if_data;
 870
 871   ifp = (struct interface *) vty->index;
 872   ret = if_set_flags (ifp, IFF_UP | IFF_RUNNING);
 873   if (ret < 0)
 874     {
 875       vty_out (vty, "Can't up interface%s", VTY_NEWLINE);
 876       return CMD_WARNING;
 877     }
 878   if_refresh (ifp);
 879   if_data = ifp->info;
 880   if_data->shutdown = IF_ZEBRA_SHUTDOWN_OFF;
 881
 882   return CMD_SUCCESS;
 883 }
 884
 885 DEFUN (bandwidth_if,
 886        bandwidth_if_cmd,
 887        "bandwidth <1-10000000>",
 888        "Set bandwidth informational parameter\n"
 889        "Bandwidth in kilobits\n")
 890 {
 891   struct interface *ifp;
 892   unsigned int bandwidth;
 893
 894   ifp = (struct interface *) vty->index;
 895   bandwidth = strtol(argv[0], NULL, 10);
 896
 897   /* bandwidth range is <1-10000000> */
 898   if (bandwidth < 1 || bandwidth > 10000000)
 899     {
 900       vty_out (vty, "Bandwidth is invalid%s", VTY_NEWLINE);
 901       return CMD_WARNING;
 902     }
 903
 904   ifp->bandwidth = bandwidth;
 905
 906   /* force protocols to recalculate routes due to cost change */
 907   if (if_is_operative (ifp))
 908     zebra_interface_up_update (ifp);
 909
 910   return CMD_SUCCESS;
 911 }
 912
 913 DEFUN (no_bandwidth_if,
 914        no_bandwidth_if_cmd,
 915        "no bandwidth",
 916        NO_STR
 917        "Set bandwidth informational parameter\n")
 918 {
 919   struct interface *ifp;
 920
 921   ifp = (struct interface *) vty->index;
 922
 923   ifp->bandwidth = 0;
 924
 925   /* force protocols to recalculate routes due to cost change */
 926   if (if_is_operative (ifp))
 927     zebra_interface_up_update (ifp);
 928
 929   return CMD_SUCCESS;
 930 }
 931
 932 ALIAS (no_bandwidth_if,
 933        no_bandwidth_if_val_cmd,
 934        "no bandwidth <1-10000000>",
 935        NO_STR
 936        "Set bandwidth informational parameter\n"
 937        "Bandwidth in kilobits\n")
 938 \f
 939 int
 940 ip_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
 941                     char *peer_str, char *label, int secondary)
 942 {
 943   struct prefix_ipv4 cp;
 944   struct connected *ifc;
 945   struct prefix_ipv4 *p;
 946   struct in_addr mask;
 947   int ret;
 948
 949   ret = str2prefix_ipv4 (addr_str, &cp);
 950   if (ret <= 0)
 951     {
 952       vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
 953       return CMD_WARNING;
 954     }
 955
 956   ifc = connected_check_ipv4 (ifp, (struct prefix *) &cp);
 957   if (! ifc)
 958     {
 959       ifc = connected_new ();
 960       ifc->ifp = ifp;
 961
 962       /* Address. */
 963       p = prefix_ipv4_new ();
 964       *p = cp;
 965       ifc->address = (struct prefix *) p;
 966
 967       /* Broadcast. */
 968       if (p->prefixlen <= 30)
 969         {
 970           p = prefix_ipv4_new ();
 971           *p = cp;
 972           masklen2ip (p->prefixlen, &mask);
 973           p->prefix.s_addr |= ~mask.s_addr;
 974           ifc->destination = (struct prefix *) p;
 975         }
 976
 977       /* Secondary. */
 978       if (secondary)
 979         SET_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY);
 980
 981       /* Label. */
 982       if (label)
 983         ifc->label = strdup (label);
 984
 985       /* Add to linked list. */
 986       listnode_add (ifp->connected, ifc);
 987     }
 988
 989   /* This address is configured from zebra. */
 990   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
 991     SET_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED);
 992
 993   /* In case of this route need to install kernel. */
 994   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
 995       && CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
 996     {
 997       /* Some system need to up the interface to set IP address. */
 998       if (! if_is_up (ifp))
 999         {
1000           if_set_flags (ifp, IFF_UP | IFF_RUNNING);
1001           if_refresh (ifp);
1002         }
1003
1004       ret = if_set_prefix (ifp, ifc);
1005       if (ret < 0)
1006         {
1007           vty_out (vty, "%% Can't set interface IP address: %s.%s",
1008                    strerror(errno), VTY_NEWLINE);
1009           return CMD_WARNING;
1010         }
1011
1012       /* IP address propery set. */
1013       SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
1014
1015       /* Update interface address information to protocol daemon. */
1016       zebra_interface_address_add_update (ifp, ifc);
1017
1018       /* If interface is up register connected route. */
1019       if (if_is_operative(ifp))
1020         connected_up_ipv4 (ifp, ifc);
1021     }
1022
1023   return CMD_SUCCESS;
1024 }
1025
1026 int
1027 ip_address_uninstall (struct vty *vty, struct interface *ifp, char *addr_str,
1028                       char *peer_str, char *label, int secondry)
1029 {
1030   struct prefix_ipv4 cp;
1031   struct connected *ifc;
1032   int ret;
1033
1034   /* Convert to prefix structure. */
1035   ret = str2prefix_ipv4 (addr_str, &cp);
1036   if (ret <= 0)
1037     {
1038       vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
1039       return CMD_WARNING;
1040     }
1041
1042   /* Check current interface address. */
1043   ifc = connected_check_ipv4 (ifp, (struct prefix *) &cp);
1044   if (! ifc)
1045     {
1046       vty_out (vty, "%% Can't find address%s", VTY_NEWLINE);
1047       return CMD_WARNING;
1048     }
1049
1050   /* This is not configured address. */
1051   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
1052     return CMD_WARNING;
1053
1054   /* This is not real address or interface is not active. */
1055   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
1056       || ! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
1057     {
1058       listnode_delete (ifp->connected, ifc);
1059       connected_free (ifc);
1060       return CMD_WARNING;
1061     }
1062
1063   /* This is real route. */
1064   ret = if_unset_prefix (ifp, ifc);
1065   if (ret < 0)
1066     {
1067       vty_out (vty, "%% Can't unset interface IP address: %s.%s",
1068                strerror(errno), VTY_NEWLINE);
1069       return CMD_WARNING;
1070     }
1071
1072   /* Redistribute this information. */
1073   zebra_interface_address_delete_update (ifp, ifc);
1074
1075   /* Remove connected route. */
1076   connected_down_ipv4 (ifp, ifc);
1077
1078   /* Free address information. */
1079   listnode_delete (ifp->connected, ifc);
1080   connected_free (ifc);
1081
1082   return CMD_SUCCESS;
1083 }
1084
1085 DEFUN (ip_address,
1086        ip_address_cmd,
1087        "ip address A.B.C.D/M",
1088        "Interface Internet Protocol config commands\n"
1089        "Set the IP address of an interface\n"
1090        "IP address (e.g. 10.0.0.1/8)\n")
1091 {
1092   return ip_address_install (vty, vty->index, argv[0], NULL, NULL, 0);
1093 }
1094
1095 DEFUN (no_ip_address,
1096        no_ip_address_cmd,
1097        "no ip address A.B.C.D/M",
1098        NO_STR
1099        "Interface Internet Protocol config commands\n"
1100        "Set the IP address of an interface\n"
1101        "IP Address (e.g. 10.0.0.1/8)")
1102 {
1103   return ip_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 0);
1104 }
1105
1106 #ifdef HAVE_NETLINK
1107 DEFUN (ip_address_secondary,
1108        ip_address_secondary_cmd,
1109        "ip address A.B.C.D/M secondary",
1110        "Interface Internet Protocol config commands\n"
1111        "Set the IP address of an interface\n"
1112        "IP address (e.g. 10.0.0.1/8)\n"
1113        "Secondary IP address\n")
1114 {
1115   return ip_address_install (vty, vty->index, argv[0], NULL, NULL, 1);
1116 }
1117
1118 DEFUN (ip_address_label,
1119        ip_address_label_cmd,
1120        "ip address A.B.C.D/M label LINE",
1121        "Interface Internet Protocol config commands\n"
1122        "Set the IP address of an interface\n"
1123        "IP address (e.g. 10.0.0.1/8)\n"
1124        "Label of this address\n"
1125        "Label\n")
1126 {
1127   return ip_address_install (vty, vty->index, argv[0], NULL, argv[1], 1);
1128 }
1129
1130 ALIAS (ip_address_label,
1131        ip_address_secondary_label_cmd,
1132        "ip address A.B.C.D/M secondary label LINE",
1133        "Interface Internet Protocol config commands\n"
1134        "Set the IP address of an interface\n"
1135        "IP address (e.g. 10.0.0.1/8)\n"
1136        "Secondary IP address\n"
1137        "Label of this address\n"
1138        "Label\n")
1139
1140 DEFUN (no_ip_address_secondary,
1141        no_ip_address_secondary_cmd,
1142        "no ip address A.B.C.D/M secondary",
1143        NO_STR
1144        "Interface Internet Protocol config commands\n"
1145        "Set the IP address of an interface\n"
1146        "IP address (e.g. 10.0.0.1/8)\n"
1147        "Secondary IP address\n")
1148 {
1149   return ip_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 1);
1150 }
1151
1152 DEFUN (no_ip_address_label,
1153        no_ip_address_label_cmd,
1154        "no ip address A.B.C.D/M label LINE",
1155        NO_STR
1156        "Interface Internet Protocol config commands\n"
1157        "Set the IP address of an interface\n"
1158        "IP address (e.g. 10.0.0.1/8)\n"
1159        "Label of this address\n"
1160        "Label\n")
1161 {
1162   return ip_address_uninstall (vty, vty->index, argv[0], NULL, argv[1], 1);
1163 }
1164
1165 ALIAS (no_ip_address_label,
1166        no_ip_address_secondary_label_cmd,
1167        "no ip address A.B.C.D/M secondary label LINE",
1168        NO_STR
1169        "Interface Internet Protocol config commands\n"
1170        "Set the IP address of an interface\n"
1171        "IP address (e.g. 10.0.0.1/8)\n"
1172        "Secondary IP address\n"
1173        "Label of this address\n"
1174        "Label\n")
1175 #endif /* HAVE_NETLINK */
1176
1177 #ifdef HAVE_IPV6
1178 int
1179 ipv6_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
1180                       char *peer_str, char *label, int secondary)
1181 {
1182   struct prefix_ipv6 cp;
1183   struct connected *ifc;
1184   struct prefix_ipv6 *p;
1185   int ret;
1186
1187   ret = str2prefix_ipv6 (addr_str, &cp);
1188   if (ret <= 0)
1189     {
1190       vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
1191       return CMD_WARNING;
1192     }
1193
1194   ifc = connected_check_ipv6 (ifp, (struct prefix *) &cp);
1195   if (! ifc)
1196     {
1197       ifc = connected_new ();
1198       ifc->ifp = ifp;
1199
1200       /* Address. */
1201       p = prefix_ipv6_new ();
1202       *p = cp;
1203       ifc->address = (struct prefix *) p;
1204
1205       /* Secondary. */
1206       if (secondary)
1207         SET_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY);
1208
1209       /* Label. */
1210       if (label)
1211         ifc->label = strdup (label);
1212
1213       /* Add to linked list. */
1214       listnode_add (ifp->connected, ifc);
1215     }
1216
1217   /* This address is configured from zebra. */
1218   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
1219     SET_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED);
1220
1221   /* In case of this route need to install kernel. */
1222   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
1223       && CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
1224     {
1225       /* Some system need to up the interface to set IP address. */
1226       if (! if_is_up (ifp))
1227         {
1228           if_set_flags (ifp, IFF_UP | IFF_RUNNING);
1229           if_refresh (ifp);
1230         }
1231
1232       ret = if_prefix_add_ipv6 (ifp, ifc);
1233
1234       if (ret < 0)
1235         {
1236           vty_out (vty, "%% Can't set interface IP address: %s.%s",
1237                    strerror(errno), VTY_NEWLINE);
1238           return CMD_WARNING;
1239         }
1240
1241       /* IP address propery set. */
1242       SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
1243
1244       /* Update interface address information to protocol daemon. */
1245       zebra_interface_address_add_update (ifp, ifc);
1246
1247       /* If interface is up register connected route. */
1248       if (if_is_operative(ifp))
1249         connected_up_ipv6 (ifp, ifc);
1250     }
1251
1252   return CMD_SUCCESS;
1253 }
1254
1255 int
1256 ipv6_address_uninstall (struct vty *vty, struct interface *ifp, char *addr_str,
1257                         char *peer_str, char *label, int secondry)
1258 {
1259   struct prefix_ipv6 cp;
1260   struct connected *ifc;
1261   int ret;
1262
1263   /* Convert to prefix structure. */
1264   ret = str2prefix_ipv6 (addr_str, &cp);
1265   if (ret <= 0)
1266     {
1267       vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
1268       return CMD_WARNING;
1269     }
1270
1271   /* Check current interface address. */
1272   ifc = connected_check_ipv6 (ifp, (struct prefix *) &cp);
1273   if (! ifc)
1274     {
1275       vty_out (vty, "%% Can't find address%s", VTY_NEWLINE);
1276       return CMD_WARNING;
1277     }
1278
1279   /* This is not configured address. */
1280   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
1281     return CMD_WARNING;
1282
1283   /* This is not real address or interface is not active. */
1284   if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
1285       || ! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
1286     {
1287       listnode_delete (ifp->connected, ifc);
1288       connected_free (ifc);
1289       return CMD_WARNING;
1290     }
1291
1292   /* This is real route. */
1293   ret = if_prefix_delete_ipv6 (ifp, ifc);
1294   if (ret < 0)
1295     {
1296       vty_out (vty, "%% Can't unset interface IP address: %s.%s",
1297                strerror(errno), VTY_NEWLINE);
1298       return CMD_WARNING;
1299     }
1300
1301   /* Redistribute this information. */
1302   zebra_interface_address_delete_update (ifp, ifc);
1303
1304   /* Remove connected route. */
1305   connected_down_ipv6 (ifp, ifc);
1306
1307   /* Free address information. */
1308   listnode_delete (ifp->connected, ifc);
1309   connected_free (ifc);
1310
1311   return CMD_SUCCESS;
1312 }
1313
1314 DEFUN (ipv6_address,
1315        ipv6_address_cmd,
1316        "ipv6 address X:X::X:X/M",
1317        "Interface IPv6 config commands\n"
1318        "Set the IP address of an interface\n"
1319        "IPv6 address (e.g. 3ffe:506::1/48)\n")
1320 {
1321   return ipv6_address_install (vty, vty->index, argv[0], NULL, NULL, 0);
1322 }
1323
1324 DEFUN (no_ipv6_address,
1325        no_ipv6_address_cmd,
1326        "no ipv6 address X:X::X:X/M",
1327        NO_STR
1328        "Interface IPv6 config commands\n"
1329        "Set the IP address of an interface\n"
1330        "IPv6 address (e.g. 3ffe:506::1/48)\n")
1331 {
1332   return ipv6_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 0);
1333 }
1334 #endif /* HAVE_IPV6 */
1335
1336 #ifdef KAME
1337 DEFUN (ip_tunnel,
1338        ip_tunnel_cmd,
1339        "ip tunnel IP_address IP_address",
1340        "KAME ip tunneling configuration commands\n"
1341        "Set FROM IP address and TO IP address\n")
1342 {
1343   return CMD_SUCCESS;
1344 }
1345
1346 DEFUN (no_ip_tunnel, no_ip_tunnel_cmd,
1347        "no ip tunnel",
1348        NO_STR
1349        "Set FROM IP address and TO IP address\n")
1350 {
1351   return CMD_SUCCESS;
1352 }
1353 #endif /* KAME */
1354
1355 int
1356 if_config_write (struct vty *vty)
1357 {
1358   listnode node;
1359   struct interface *ifp;
1360   char buf[BUFSIZ];
1361
1362   for (node = listhead (iflist); node; nextnode (node))
1363     {
1364       struct zebra_if *if_data;
1365       listnode addrnode;
1366       struct connected *ifc;
1367       struct prefix *p;
1368
1369       ifp = getdata (node);
1370       if_data = ifp->info;
1371
1372       vty_out (vty, "interface %s%s", ifp->name,
1373                VTY_NEWLINE);
1374
1375       if (ifp->desc)
1376         vty_out (vty, " description %s%s", ifp->desc,
1377                  VTY_NEWLINE);
1378
1379       /* Assign bandwidth here to avoid unnecessary interface flap
1380          while processing config script */
1381       if (ifp->bandwidth != 0)
1382         vty_out(vty, " bandwidth %u%s", ifp->bandwidth, VTY_NEWLINE);
1383
1384       if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION))
1385         vty_out(vty, " link-detect%s", VTY_NEWLINE);
1386
1387       for (addrnode = listhead (ifp->connected); addrnode; nextnode (addrnode))
1388           {
1389             ifc = getdata (addrnode);
1390             if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
1391               {
1392                 p = ifc->address;
1393                 vty_out (vty, " ip%s address %s/%d",
1394                          p->family == AF_INET ? "" : "v6",
1395                          inet_ntop (p->family, &p->u.prefix, buf, BUFSIZ),
1396                          p->prefixlen);
1397
1398                 if (CHECK_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY))
1399                   vty_out (vty, " secondary");
1400
1401                 if (ifc->label)
1402                   vty_out (vty, " label %s", ifc->label);
1403
1404                 vty_out (vty, "%s", VTY_NEWLINE);
1405               }
1406           }
1407
1408       if (if_data)
1409         {
1410           if (if_data->shutdown == IF_ZEBRA_SHUTDOWN_ON)
1411             vty_out (vty, " shutdown%s", VTY_NEWLINE);
1412
1413           if (if_data->multicast != IF_ZEBRA_MULTICAST_UNSPEC)
1414             vty_out (vty, " %smulticast%s",
1415                      if_data->multicast == IF_ZEBRA_MULTICAST_ON ? "" : "no ",
1416                      VTY_NEWLINE);
1417         }
1418
1419 #ifdef RTADV
1420       rtadv_config_write (vty, ifp);
1421 #endif /* RTADV */
1422
1423 #ifdef HAVE_IRDP
1424       irdp_config_write (vty, ifp);
1425 #endif /* IRDP */
1426
1427       vty_out (vty, "!%s", VTY_NEWLINE);
1428     }
1429   return 0;
1430 }
1431
1432 /* Allocate and initialize interface vector. */
1433 void
1434 zebra_if_init ()
1435 {
1436   /* Initialize interface and new hook. */
1437   if_init ();
1438   if_add_hook (IF_NEW_HOOK, if_zebra_new_hook);
1439   if_add_hook (IF_DELETE_HOOK, if_zebra_delete_hook);
1440
1441   /* Install configuration write function. */
1442   install_node (&interface_node, if_config_write);
1443
1444   install_element (VIEW_NODE, &show_interface_cmd);
1445   install_element (ENABLE_NODE, &show_interface_cmd);
1446   install_element (CONFIG_NODE, &zebra_interface_cmd);
1447   install_element (CONFIG_NODE, &no_interface_cmd);
1448   install_default (INTERFACE_NODE);
1449   install_element (INTERFACE_NODE, &interface_desc_cmd);
1450   install_element (INTERFACE_NODE, &no_interface_desc_cmd);
1451   install_element (INTERFACE_NODE, &multicast_cmd);
1452   install_element (INTERFACE_NODE, &no_multicast_cmd);
1453   install_element (INTERFACE_NODE, &linkdetect_cmd);
1454   install_element (INTERFACE_NODE, &no_linkdetect_cmd);
1455   install_element (INTERFACE_NODE, &shutdown_if_cmd);
1456   install_element (INTERFACE_NODE, &no_shutdown_if_cmd);
1457   install_element (INTERFACE_NODE, &bandwidth_if_cmd);
1458   install_element (INTERFACE_NODE, &no_bandwidth_if_cmd);
1459   install_element (INTERFACE_NODE, &no_bandwidth_if_val_cmd);
1460   install_element (INTERFACE_NODE, &ip_address_cmd);
1461   install_element (INTERFACE_NODE, &no_ip_address_cmd);
1462 #ifdef HAVE_IPV6
1463   install_element (INTERFACE_NODE, &ipv6_address_cmd);
1464   install_element (INTERFACE_NODE, &no_ipv6_address_cmd);
1465 #endif /* HAVE_IPV6 */
1466 #ifdef KAME
1467   install_element (INTERFACE_NODE, &ip_tunnel_cmd);
1468   install_element (INTERFACE_NODE, &no_ip_tunnel_cmd);
1469 #endif /* KAME */
1470 #ifdef HAVE_NETLINK
1471   install_element (INTERFACE_NODE, &ip_address_secondary_cmd);
1472   install_element (INTERFACE_NODE, &ip_address_label_cmd);
1473   install_element (INTERFACE_NODE, &ip_address_secondary_label_cmd);
1474   install_element (INTERFACE_NODE, &no_ip_address_secondary_cmd);
1475   install_element (INTERFACE_NODE, &no_ip_address_label_cmd);
1476   install_element (INTERFACE_NODE, &no_ip_address_secondary_label_cmd);
1477 #endif /* HAVE_NETLINK */
1478 }