interface.c
上传用户:xiaozhuqw
上传日期:2009-11-15
资源大小:1338k
文件大小:34k
- /*
- * Interface function.
- * Copyright (C) 1997, 1999 Kunihiro Ishiguro
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * GNU Zebra is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
- #include <zebra.h>
- #include "if.h"
- #include "vty.h"
- #include "sockunion.h"
- #include "prefix.h"
- #include "command.h"
- #include "memory.h"
- #include "ioctl.h"
- #include "connected.h"
- #include "log.h"
- #include "zclient.h"
- #include "zebra/interface.h"
- #include "zebra/rtadv.h"
- #include "zebra/rib.h"
- #include "zebra/zserv.h"
- #include "zebra/redistribute.h"
- #include "zebra/debug.h"
- /* Allocate a new internal interface index
- * This works done from the top so that %d macros
- * print a - sign!
- */
- static unsigned int
- if_new_intern_ifindex (void)
- {
- /* Start here so that first one assigned is 0xFFFFFFFF */
- static unsigned int ifindex = IFINDEX_INTERNBASE + 1;
- for (;;)
- {
- ifindex--;
- if ( ifindex <= IFINDEX_INTERNBASE )
- ifindex = 0xFFFFFFFF;
- if (if_lookup_by_index(ifindex) == NULL)
- return ifindex;
- }
- }
- /* Called when new interface is added. */
- int
- if_zebra_new_hook (struct interface *ifp)
- {
- struct zebra_if *zebra_if;
- zebra_if = XMALLOC (MTYPE_TMP, sizeof (struct zebra_if));
- memset (zebra_if, 0, sizeof (struct zebra_if));
- zebra_if->multicast = IF_ZEBRA_MULTICAST_UNSPEC;
- zebra_if->shutdown = IF_ZEBRA_SHUTDOWN_UNSPEC;
- #ifdef RTADV
- {
- /* Set default router advertise values. */
- struct rtadvconf *rtadv;
- rtadv = &zebra_if->rtadv;
- rtadv->AdvSendAdvertisements = 0;
- rtadv->MaxRtrAdvInterval = RTADV_MAX_RTR_ADV_INTERVAL;
- rtadv->MinRtrAdvInterval = RTADV_MIN_RTR_ADV_INTERVAL;
- rtadv->AdvIntervalTimer = 0;
- rtadv->AdvManagedFlag = 0;
- rtadv->AdvOtherConfigFlag = 0;
- rtadv->AdvLinkMTU = 0;
- rtadv->AdvReachableTime = 0;
- rtadv->AdvRetransTimer = 0;
- rtadv->AdvCurHopLimit = 0;
- rtadv->AdvDefaultLifetime = RTADV_ADV_DEFAULT_LIFETIME;
- rtadv->AdvPrefixList = list_new ();
- }
- #endif /* RTADV */
- ifp->info = zebra_if;
- return 0;
- }
- /* Called when interface is deleted. */
- int
- if_zebra_delete_hook (struct interface *ifp)
- {
- if (ifp->info)
- XFREE (MTYPE_TMP, ifp->info);
- return 0;
- }
- /* Wake up configured address if it is not in current kernel
- address. */
- void
- if_addr_wakeup (struct interface *ifp)
- {
- struct listnode *node;
- struct connected *ifc;
- struct prefix *p;
- int ret;
- for (node = listhead (ifp->connected); node; nextnode (node))
- {
- ifc = getdata (node);
- p = ifc->address;
-
- if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED)
- && ! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL))
- {
- /* Address check. */
- if (p->family == AF_INET)
- {
- if (! if_is_up (ifp))
- {
- if_set_flags (ifp, IFF_UP | IFF_RUNNING);
- if_refresh (ifp);
- }
- ret = if_set_prefix (ifp, ifc);
- if (ret < 0)
- {
- zlog_warn ("Can't set interface's address: %s",
- strerror(errno));
- continue;
- }
- SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
- zebra_interface_address_add_update (ifp, ifc);
- if (if_is_up(ifp))
- connected_up_ipv4 (ifp, ifc);
- }
- #ifdef HAVE_IPV6
- if (p->family == AF_INET6)
- {
- if (! if_is_up (ifp))
- {
- if_set_flags (ifp, IFF_UP | IFF_RUNNING);
- if_refresh (ifp);
- }
- ret = if_prefix_add_ipv6 (ifp, ifc);
- if (ret < 0)
- {
- zlog_warn ("Can't set interface's address: %s",
- strerror(errno));
- continue;
- }
- SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
- zebra_interface_address_add_update (ifp, ifc);
- if (if_is_up(ifp))
- connected_up_ipv6 (ifp, ifc);
- }
- #endif /* HAVE_IPV6 */
- }
- }
- }
- /* Handle interface addition */
- void
- if_add_update (struct interface *ifp)
- {
- zebra_interface_add_update (ifp);
- if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- SET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
- if_addr_wakeup (ifp);
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("interface %s index %d becomes active.",
- ifp->name, ifp->ifindex);
- }
- else
- {
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("interface %s index %d is added.", ifp->name, ifp->ifindex);
- }
- }
- /* Handle an interface delete event */
- void
- if_delete_update (struct interface *ifp)
- {
- struct listnode *node;
- struct listnode *next;
- struct connected *ifc;
- struct prefix *p;
- if (if_is_up(ifp))
- {
- zlog_err ("interface %s index %d is still up while being deleted.",
- ifp->name, ifp->ifindex);
- return;
- }
- /* Mark interface as inactive */
- UNSET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
-
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("interface %s index %d is now inactive.",
- ifp->name, ifp->ifindex);
- /* Delete connected routes from the kernel. */
- if (ifp->connected)
- {
- for (node = listhead (ifp->connected); node; node = next)
- {
- next = node->next;
- ifc = getdata (node);
- p = ifc->address;
- if (p->family == AF_INET)
- connected_down_ipv4 (ifp, ifc);
- #ifdef HAVE_IPV6
- else if (p->family == AF_INET6)
- connected_down_ipv6 (ifp, ifc);
- #endif /* HAVE_IPV6 */
- zebra_interface_address_delete_update (ifp, ifc);
- UNSET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
-
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- {
- listnode_delete (ifp->connected, ifc);
- connected_free (ifc);
- }
- }
- }
- zebra_interface_delete_update (ifp);
- }
- /* Interface is up. */
- void
- if_up (struct interface *ifp)
- {
- listnode node;
- listnode next;
- struct connected *ifc;
- struct prefix *p;
- /* Notify the protocol daemons. */
- zebra_interface_up_update (ifp);
- /* Install connected routes to the kernel. */
- if (ifp->connected)
- {
- for (node = listhead (ifp->connected); node; node = next)
- {
- next = node->next;
- ifc = getdata (node);
- p = ifc->address;
- if (p->family == AF_INET)
- connected_up_ipv4 (ifp, ifc);
- #ifdef HAVE_IPV6
- else if (p->family == AF_INET6)
- connected_up_ipv6 (ifp, ifc);
- #endif /* HAVE_IPV6 */
- }
- }
- /* Examine all static routes. */
- rib_update ();
- }
- /* Interface goes down. We have to manage different behavior of based
- OS. */
- void
- if_down (struct interface *ifp)
- {
- listnode node;
- listnode next;
- struct connected *ifc;
- struct prefix *p;
- /* Notify to the protocol daemons. */
- zebra_interface_down_update (ifp);
- /* Delete connected routes from the kernel. */
- if (ifp->connected)
- {
- for (node = listhead (ifp->connected); node; node = next)
- {
- next = node->next;
- ifc = getdata (node);
- p = ifc->address;
- if (p->family == AF_INET)
- connected_down_ipv4 (ifp, ifc);
- #ifdef HAVE_IPV6
- else if (p->family == AF_INET6)
- connected_down_ipv6 (ifp, ifc);
- #endif /* HAVE_IPV6 */
- }
- }
- /* Examine all static routes which direct to the interface. */
- rib_update ();
- }
- void
- if_refresh (struct interface *ifp)
- {
- if (if_is_up (ifp))
- {
- if_get_flags (ifp);
- if (! if_is_up (ifp))
- if_down (ifp);
- }
- else
- {
- if_get_flags (ifp);
- if (if_is_up (ifp))
- if_up (ifp);
- }
- }
- /* Printout flag information into vty */
- void
- if_flag_dump_vty (struct vty *vty, unsigned long flag)
- {
- int separator = 0;
- #define IFF_OUT_VTY(X, Y)
- if ((X) && (flag & (X)))
- {
- if (separator)
- vty_out (vty, ",");
- else
- separator = 1;
- vty_out (vty, Y);
- }
- vty_out (vty, "<");
- IFF_OUT_VTY (IFF_UP, "UP");
- IFF_OUT_VTY (IFF_BROADCAST, "BROADCAST");
- IFF_OUT_VTY (IFF_DEBUG, "DEBUG");
- IFF_OUT_VTY (IFF_LOOPBACK, "LOOPBACK");
- IFF_OUT_VTY (IFF_POINTOPOINT, "POINTOPOINT");
- IFF_OUT_VTY (IFF_NOTRAILERS, "NOTRAILERS");
- IFF_OUT_VTY (IFF_RUNNING, "RUNNING");
- IFF_OUT_VTY (IFF_NOARP, "NOARP");
- IFF_OUT_VTY (IFF_PROMISC, "PROMISC");
- IFF_OUT_VTY (IFF_ALLMULTI, "ALLMULTI");
- IFF_OUT_VTY (IFF_OACTIVE, "OACTIVE");
- IFF_OUT_VTY (IFF_SIMPLEX, "SIMPLEX");
- IFF_OUT_VTY (IFF_LINK0, "LINK0");
- IFF_OUT_VTY (IFF_LINK1, "LINK1");
- IFF_OUT_VTY (IFF_LINK2, "LINK2");
- IFF_OUT_VTY (IFF_MULTICAST, "MULTICAST");
- vty_out (vty, ">");
- }
- /* Output prefix string to vty. */
- int
- prefix_vty_out (struct vty *vty, struct prefix *p)
- {
- char str[INET6_ADDRSTRLEN];
- inet_ntop (p->family, &p->u.prefix, str, sizeof (str));
- vty_out (vty, "%s", str);
- return strlen (str);
- }
- /* Dump if address information to vty. */
- void
- connected_dump_vty (struct vty *vty, struct connected *connected)
- {
- struct prefix *p;
- struct interface *ifp;
- /* Set interface pointer. */
- ifp = connected->ifp;
- /* Print interface address. */
- p = connected->address;
- vty_out (vty, " %s ", prefix_family_str (p));
- prefix_vty_out (vty, p);
- vty_out (vty, "/%d", p->prefixlen);
- /* If there is destination address, print it. */
- p = connected->destination;
- if (p)
- {
- if (p->family == AF_INET)
- if (ifp->flags & IFF_BROADCAST)
- {
- vty_out (vty, " broadcast ");
- prefix_vty_out (vty, p);
- }
- if (ifp->flags & IFF_POINTOPOINT)
- {
- vty_out (vty, " pointopoint ");
- prefix_vty_out (vty, p);
- }
- }
- if (CHECK_FLAG (connected->flags, ZEBRA_IFA_SECONDARY))
- vty_out (vty, " secondary");
- if (connected->label)
- vty_out (vty, " %s", connected->label);
- vty_out (vty, "%s", VTY_NEWLINE);
- }
- #ifdef RTADV
- /* Dump interface ND information to vty. */
- void
- nd_dump_vty (struct vty *vty, struct interface *ifp)
- {
- struct zebra_if *zif;
- struct rtadvconf *rtadv;
- zif = (struct zebra_if *) ifp->info;
- rtadv = &zif->rtadv;
- if (rtadv->AdvSendAdvertisements)
- {
- vty_out (vty, " ND advertised reachable time is %d milliseconds%s",
- rtadv->AdvReachableTime, VTY_NEWLINE);
- vty_out (vty, " ND advertised retransmit interval is %d milliseconds%s",
- rtadv->AdvRetransTimer, VTY_NEWLINE);
- vty_out (vty, " ND router advertisements are sent every %d seconds%s",
- rtadv->MaxRtrAdvInterval, VTY_NEWLINE);
- vty_out (vty, " ND router advertisements live for %d seconds%s",
- rtadv->AdvDefaultLifetime, VTY_NEWLINE);
- if (rtadv->AdvManagedFlag)
- vty_out (vty, " Hosts use DHCP to obtain routable addresses.%s",
- VTY_NEWLINE);
- else
- vty_out (vty, " Hosts use stateless autoconfig for addresses.%s",
- VTY_NEWLINE);
- }
- }
- #endif /* RTADV */
- /* Interface's information print out to vty interface. */
- void
- if_dump_vty (struct vty *vty, struct interface *ifp)
- {
- #ifdef HAVE_SOCKADDR_DL
- struct sockaddr_dl *sdl;
- #endif /* HAVE_SOCKADDR_DL */
- struct connected *connected;
- listnode node;
- vty_out (vty, "Interface %s%s", ifp->name,
- VTY_NEWLINE);
- if (ifp->desc)
- vty_out (vty, " Description: %s%s", ifp->desc,
- VTY_NEWLINE);
- if (ifp->ifindex <= 0)
- {
- vty_out(vty, " index %d pseudo interface%s", ifp->ifindex, VTY_NEWLINE);
- return;
- }
- else if (! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- vty_out(vty, " index %d inactive interface%s",
- ifp->ifindex,
- VTY_NEWLINE);
- return;
- }
- vty_out (vty, " index %d metric %d mtu %d ",
- ifp->ifindex, ifp->metric, ifp->mtu);
- if_flag_dump_vty (vty, ifp->flags);
- vty_out (vty, "%s", VTY_NEWLINE);
- /* Hardware address. */
- #ifdef HAVE_SOCKADDR_DL
- sdl = &ifp->sdl;
- if (sdl != NULL && sdl->sdl_alen != 0)
- {
- int i;
- u_char *ptr;
- vty_out (vty, " HWaddr: ");
- for (i = 0, ptr = LLADDR (sdl); i < sdl->sdl_alen; i++, ptr++)
- vty_out (vty, "%s%02x", i == 0 ? "" : ":", *ptr);
- vty_out (vty, "%s", VTY_NEWLINE);
- }
- #else
- if (ifp->hw_addr_len != 0)
- {
- int i;
- vty_out (vty, " HWaddr: ");
- for (i = 0; i < ifp->hw_addr_len; i++)
- vty_out (vty, "%s%02x", i == 0 ? "" : ":", ifp->hw_addr[i]);
- vty_out (vty, "%s", VTY_NEWLINE);
- }
- #endif /* HAVE_SOCKADDR_DL */
-
- /* Bandwidth in kbps */
- if (ifp->bandwidth != 0)
- {
- vty_out(vty, " bandwidth %u kbps", ifp->bandwidth);
- vty_out(vty, "%s", VTY_NEWLINE);
- }
- for (node = listhead (ifp->connected); node; nextnode (node))
- {
- connected = getdata (node);
- if (CHECK_FLAG (connected->conf, ZEBRA_IFC_REAL))
- connected_dump_vty (vty, connected);
- }
- #ifdef RTADV
- nd_dump_vty (vty, ifp);
- #endif /* RTADV */
- #ifdef HAVE_PROC_NET_DEV
- /* Statistics print out using proc file system. */
- vty_out (vty, " input packets %lu, bytes %lu, dropped %lu,"
- " multicast packets %lu%s",
- ifp->stats.rx_packets, ifp->stats.rx_bytes,
- ifp->stats.rx_dropped, ifp->stats.rx_multicast, VTY_NEWLINE);
- vty_out (vty, " input errors %lu, length %lu, overrun %lu,"
- " CRC %lu, frame %lu, fifo %lu, missed %lu%s",
- ifp->stats.rx_errors, ifp->stats.rx_length_errors,
- ifp->stats.rx_over_errors, ifp->stats.rx_crc_errors,
- ifp->stats.rx_frame_errors, ifp->stats.rx_fifo_errors,
- ifp->stats.rx_missed_errors, VTY_NEWLINE);
- vty_out (vty, " output packets %lu, bytes %lu, dropped %lu%s",
- ifp->stats.tx_packets, ifp->stats.tx_bytes,
- ifp->stats.tx_dropped, VTY_NEWLINE);
- vty_out (vty, " output errors %lu, aborted %lu, carrier %lu,"
- " fifo %lu, heartbeat %lu, window %lu%s",
- ifp->stats.tx_errors, ifp->stats.tx_aborted_errors,
- ifp->stats.tx_carrier_errors, ifp->stats.tx_fifo_errors,
- ifp->stats.tx_heartbeat_errors, ifp->stats.tx_window_errors,
- VTY_NEWLINE);
- vty_out (vty, " collisions %lu%s", ifp->stats.collisions, VTY_NEWLINE);
- #endif /* HAVE_PROC_NET_DEV */
- #ifdef HAVE_NET_RT_IFLIST
- #if defined (__bsdi__) || defined (__NetBSD__)
- /* Statistics print out using sysctl (). */
- vty_out (vty, " input packets %qu, bytes %qu, dropped %qu,"
- " multicast packets %qu%s",
- ifp->stats.ifi_ipackets, ifp->stats.ifi_ibytes,
- ifp->stats.ifi_iqdrops, ifp->stats.ifi_imcasts,
- VTY_NEWLINE);
- vty_out (vty, " input errors %qu%s",
- ifp->stats.ifi_ierrors, VTY_NEWLINE);
- vty_out (vty, " output packets %qu, bytes %qu, multicast packets %qu%s",
- ifp->stats.ifi_opackets, ifp->stats.ifi_obytes,
- ifp->stats.ifi_omcasts, VTY_NEWLINE);
- vty_out (vty, " output errors %qu%s",
- ifp->stats.ifi_oerrors, VTY_NEWLINE);
- vty_out (vty, " collisions %qu%s",
- ifp->stats.ifi_collisions, VTY_NEWLINE);
- #else
- /* Statistics print out using sysctl (). */
- vty_out (vty, " input packets %lu, bytes %lu, dropped %lu,"
- " multicast packets %lu%s",
- ifp->stats.ifi_ipackets, ifp->stats.ifi_ibytes,
- ifp->stats.ifi_iqdrops, ifp->stats.ifi_imcasts,
- VTY_NEWLINE);
- vty_out (vty, " input errors %lu%s",
- ifp->stats.ifi_ierrors, VTY_NEWLINE);
- vty_out (vty, " output packets %lu, bytes %lu, multicast packets %lu%s",
- ifp->stats.ifi_opackets, ifp->stats.ifi_obytes,
- ifp->stats.ifi_omcasts, VTY_NEWLINE);
- vty_out (vty, " output errors %lu%s",
- ifp->stats.ifi_oerrors, VTY_NEWLINE);
- vty_out (vty, " collisions %lu%s",
- ifp->stats.ifi_collisions, VTY_NEWLINE);
- #endif /* __bsdi__ || __NetBSD__ */
- #endif /* HAVE_NET_RT_IFLIST */
- }
- /* Check supported address family. */
- int
- if_supported_family (int family)
- {
- if (family == AF_INET)
- return 1;
- #ifdef HAVE_IPV6
- if (family == AF_INET6)
- return 1;
- #endif /* HAVE_IPV6 */
- return 0;
- }
- /* Wrapper hook point for zebra daemon so that ifindex can be set
- * DEFUN macro not used as extract.pl HAS to ignore this
- * See also interface_cmd in lib/if.c
- */
- DEFUN_NOSH (zebra_interface,
- zebra_interface_cmd,
- "interface IFNAME",
- "Select an interface to configuren"
- "Interface's namen")
- {
- int ret;
- struct interface * ifp;
-
- /* Call lib interface() */
- ret = interface_cmd.func (self, vty, argc, argv);
- ifp = vty->index;
- /* Set ifindex
- this only happens if interface is NOT in kernel */
- if (ifp->ifindex == 0)
- {
- ifp->ifindex = if_new_intern_ifindex ();
- UNSET_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE);
- }
- return ret;
- }
- DEFUN (no_zebra_interface,
- no_zebra_interface_cmd,
- "no interface IFNAME",
- "Delete a pseudo interface's configurationn"
- "Interface's namen")
- {
- struct interface *ifp;
-
- ifp = if_lookup_by_name(argv[0]);
-
- if (ifp == NULL)
- {
- vty_out (vty, "Inteface %s does not exist%s",
- argv[0],
- VTY_NEWLINE);
- return CMD_WARNING;
- }
- if (CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- vty_out(vty, "Only inactive interfaces can be deleted%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* Delete interface */
- if_delete(ifp);
- return CMD_SUCCESS;
- }
- struct cmd_node interface_node =
- {
- INTERFACE_NODE,
- "%s(config-if)# ",
- 1
- };
- /* Show all or specified interface to vty. */
- DEFUN (show_interface, show_interface_cmd,
- "show interface [IFNAME]",
- SHOW_STR
- "Interface status and configurationn"
- "Inteface namen")
- {
- listnode node;
- struct interface *ifp;
-
- #ifdef HAVE_PROC_NET_DEV
- /* If system has interface statistics via proc file system, update
- statistics. */
- ifstat_update_proc ();
- #endif /* HAVE_PROC_NET_DEV */
- #ifdef HAVE_NET_RT_IFLIST
- ifstat_update_sysctl ();
- #endif /* HAVE_NET_RT_IFLIST */
- /* Specified interface print. */
- if (argc != 0)
- {
- ifp = if_lookup_by_name (argv[0]);
- if (ifp == NULL)
- {
- vty_out (vty, "%% Can't find interface %s%s", argv[0],
- VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_dump_vty (vty, ifp);
- return CMD_SUCCESS;
- }
- /* All interface print. */
- for (node = listhead (iflist); node; nextnode (node))
- if_dump_vty (vty, getdata (node));
- return CMD_SUCCESS;
- }
- DEFUN (multicast,
- multicast_cmd,
- "multicast",
- "Set multicast flag to interfacen")
- {
- int ret;
- struct interface *ifp;
- struct zebra_if *if_data;
- ifp = (struct interface *) vty->index;
- ret = if_set_flags (ifp, IFF_MULTICAST);
- if (ret < 0)
- {
- vty_out (vty, "Can't set multicast flag%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_refresh (ifp);
- if_data = ifp->info;
- if_data->multicast = IF_ZEBRA_MULTICAST_ON;
-
- return CMD_SUCCESS;
- }
- DEFUN (no_multicast,
- no_multicast_cmd,
- "no multicast",
- NO_STR
- "Unset multicast flag to interfacen")
- {
- int ret;
- struct interface *ifp;
- struct zebra_if *if_data;
- ifp = (struct interface *) vty->index;
- ret = if_unset_flags (ifp, IFF_MULTICAST);
- if (ret < 0)
- {
- vty_out (vty, "Can't unset multicast flag%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_refresh (ifp);
- if_data = ifp->info;
- if_data->multicast = IF_ZEBRA_MULTICAST_OFF;
- return CMD_SUCCESS;
- }
- DEFUN (shutdown_if,
- shutdown_if_cmd,
- "shutdown",
- "Shutdown the selected interfacen")
- {
- int ret;
- struct interface *ifp;
- struct zebra_if *if_data;
- ifp = (struct interface *) vty->index;
- ret = if_unset_flags (ifp, IFF_UP);
- if (ret < 0)
- {
- vty_out (vty, "Can't shutdown interface%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_refresh (ifp);
- if_data = ifp->info;
- if_data->shutdown = IF_ZEBRA_SHUTDOWN_ON;
- return CMD_SUCCESS;
- }
- DEFUN (no_shutdown_if,
- no_shutdown_if_cmd,
- "no shutdown",
- NO_STR
- "Shutdown the selected interfacen")
- {
- int ret;
- struct interface *ifp;
- struct zebra_if *if_data;
- ifp = (struct interface *) vty->index;
- ret = if_set_flags (ifp, IFF_UP | IFF_RUNNING);
- if (ret < 0)
- {
- vty_out (vty, "Can't up interface%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_refresh (ifp);
- if_data = ifp->info;
- if_data->shutdown = IF_ZEBRA_SHUTDOWN_OFF;
- return CMD_SUCCESS;
- }
- DEFUN (bandwidth_if,
- bandwidth_if_cmd,
- "bandwidth <1-10000000>",
- "Set bandwidth informational parametern"
- "Bandwidth in kilobitsn")
- {
- struct interface *ifp;
- unsigned int bandwidth;
-
- ifp = (struct interface *) vty->index;
- bandwidth = strtol(argv[0], NULL, 10);
- /* bandwidth range is <1-10000000> */
- if (bandwidth < 1 || bandwidth > 10000000)
- {
- vty_out (vty, "Bandwidth is invalid%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
-
- ifp->bandwidth = bandwidth;
- /* force protocols to recalculate routes due to cost change */
- if (if_is_up (ifp))
- zebra_interface_up_update (ifp);
-
- return CMD_SUCCESS;
- }
- DEFUN (no_bandwidth_if,
- no_bandwidth_if_cmd,
- "no bandwidth",
- NO_STR
- "Set bandwidth informational parametern")
- {
- struct interface *ifp;
-
- ifp = (struct interface *) vty->index;
- ifp->bandwidth = 0;
-
- /* force protocols to recalculate routes due to cost change */
- if (if_is_up (ifp))
- zebra_interface_up_update (ifp);
- return CMD_SUCCESS;
- }
- ALIAS (no_bandwidth_if,
- no_bandwidth_if_val_cmd,
- "no bandwidth <1-10000000>",
- NO_STR
- "Set bandwidth informational parametern"
- "Bandwidth in kilobitsn");
- int
- ip_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
- char *peer_str, char *label, int secondary)
- {
- struct prefix_ipv4 cp;
- struct connected *ifc;
- struct prefix_ipv4 *p;
- struct in_addr mask;
- int ret;
- ret = str2prefix_ipv4 (addr_str, &cp);
- if (ret <= 0)
- {
- vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- ifc = connected_check_ipv4 (ifp, (struct prefix *) &cp);
- if (! ifc)
- {
- ifc = connected_new ();
- ifc->ifp = ifp;
- /* Address. */
- p = prefix_ipv4_new ();
- *p = cp;
- ifc->address = (struct prefix *) p;
- /* Broadcast. */
- if (p->prefixlen <= 30)
- {
- p = prefix_ipv4_new ();
- *p = cp;
- masklen2ip (p->prefixlen, &mask);
- p->prefix.s_addr |= ~mask.s_addr;
- ifc->destination = (struct prefix *) p;
- }
- /* Secondary. */
- if (secondary)
- SET_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY);
- /* Label. */
- if (label)
- ifc->label = strdup (label);
- /* Add to linked list. */
- listnode_add (ifp->connected, ifc);
- }
- /* This address is configured from zebra. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- SET_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED);
- /* In case of this route need to install kernel. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
- && CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- /* Some system need to up the interface to set IP address. */
- if (! if_is_up (ifp))
- {
- if_set_flags (ifp, IFF_UP | IFF_RUNNING);
- if_refresh (ifp);
- }
- ret = if_set_prefix (ifp, ifc);
- if (ret < 0)
- {
- vty_out (vty, "%% Can't set interface IP address: %s.%s",
- strerror(errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* IP address propery set. */
- SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
- /* Update interface address information to protocol daemon. */
- zebra_interface_address_add_update (ifp, ifc);
- /* If interface is up register connected route. */
- if (if_is_up(ifp))
- connected_up_ipv4 (ifp, ifc);
- }
- return CMD_SUCCESS;
- }
- int
- ip_address_uninstall (struct vty *vty, struct interface *ifp, char *addr_str,
- char *peer_str, char *label, int secondry)
- {
- struct prefix_ipv4 cp;
- struct connected *ifc;
- int ret;
- /* Convert to prefix structure. */
- ret = str2prefix_ipv4 (addr_str, &cp);
- if (ret <= 0)
- {
- vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* Check current interface address. */
- ifc = connected_check_ipv4 (ifp, (struct prefix *) &cp);
- if (! ifc)
- {
- vty_out (vty, "%% Can't find address%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* This is not configured address. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- return CMD_WARNING;
- /* This is not real address or interface is not active. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
- || ! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- listnode_delete (ifp->connected, ifc);
- connected_free (ifc);
- return CMD_WARNING;
- }
- /* This is real route. */
- ret = if_unset_prefix (ifp, ifc);
- if (ret < 0)
- {
- vty_out (vty, "%% Can't unset interface IP address: %s.%s",
- strerror(errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* Redistribute this information. */
- zebra_interface_address_delete_update (ifp, ifc);
- /* Remove connected route. */
- connected_down_ipv4 (ifp, ifc);
- /* Free address information. */
- listnode_delete (ifp->connected, ifc);
- connected_free (ifc);
- return CMD_SUCCESS;
- }
- DEFUN (ip_address,
- ip_address_cmd,
- "ip address A.B.C.D/M",
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP address (e.g. 10.0.0.1/8)n")
- {
- return ip_address_install (vty, vty->index, argv[0], NULL, NULL, 0);
- }
- DEFUN (no_ip_address,
- no_ip_address_cmd,
- "no ip address A.B.C.D/M",
- NO_STR
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP Address (e.g. 10.0.0.1/8)")
- {
- return ip_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 0);
- }
- #ifdef HAVE_NETLINK
- DEFUN (ip_address_secondary,
- ip_address_secondary_cmd,
- "ip address A.B.C.D/M secondary",
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP address (e.g. 10.0.0.1/8)n"
- "Secondary IP addressn")
- {
- return ip_address_install (vty, vty->index, argv[0], NULL, NULL, 1);
- }
- DEFUN (ip_address_label,
- ip_address_label_cmd,
- "ip address A.B.C.D/M label LINE",
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP address (e.g. 10.0.0.1/8)n"
- "Label of this addressn"
- "Labeln")
- {
- return ip_address_install (vty, vty->index, argv[0], NULL, argv[1], 1);
- }
- DEFUN (no_ip_address_secondary,
- no_ip_address_secondary_cmd,
- "no ip address A.B.C.D/M secondary",
- NO_STR
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP address (e.g. 10.0.0.1/8)n"
- "Secondary IP addressn")
- {
- return ip_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 1);
- }
- DEFUN (no_ip_address_label,
- no_ip_address_label_cmd,
- "no ip address A.B.C.D/M label LINE",
- NO_STR
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IP address (e.g. 10.0.0.1/8)n"
- "Label of this addressn"
- "Labeln")
- {
- return ip_address_uninstall (vty, vty->index, argv[0], NULL, argv[1], 1);
- }
- #endif /* HAVE_NETLINK */
- #ifdef HAVE_IPV6
- int
- ipv6_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
- char *peer_str, char *label, int secondary)
- {
- struct prefix_ipv6 cp;
- struct connected *ifc;
- struct prefix_ipv6 *p;
- int ret;
- ret = str2prefix_ipv6 (addr_str, &cp);
- if (ret <= 0)
- {
- vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- ifc = connected_check_ipv6 (ifp, (struct prefix *) &cp);
- if (! ifc)
- {
- ifc = connected_new ();
- ifc->ifp = ifp;
- /* Address. */
- p = prefix_ipv6_new ();
- *p = cp;
- ifc->address = (struct prefix *) p;
- /* Secondary. */
- if (secondary)
- SET_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY);
- /* Label. */
- if (label)
- ifc->label = strdup (label);
- /* Add to linked list. */
- listnode_add (ifp->connected, ifc);
- }
- /* This address is configured from zebra. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- SET_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED);
- /* In case of this route need to install kernel. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
- && CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- /* Some system need to up the interface to set IP address. */
- if (! if_is_up (ifp))
- {
- if_set_flags (ifp, IFF_UP | IFF_RUNNING);
- if_refresh (ifp);
- }
- ret = if_prefix_add_ipv6 (ifp, ifc);
- if (ret < 0)
- {
- vty_out (vty, "%% Can't set interface IP address: %s.%s",
- strerror(errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* IP address propery set. */
- SET_FLAG (ifc->conf, ZEBRA_IFC_REAL);
- /* Update interface address information to protocol daemon. */
- zebra_interface_address_add_update (ifp, ifc);
- /* If interface is up register connected route. */
- if (if_is_up(ifp))
- connected_up_ipv6 (ifp, ifc);
- }
- return CMD_SUCCESS;
- }
- int
- ipv6_address_uninstall (struct vty *vty, struct interface *ifp, char *addr_str,
- char *peer_str, char *label, int secondry)
- {
- struct prefix_ipv6 cp;
- struct connected *ifc;
- int ret;
- /* Convert to prefix structure. */
- ret = str2prefix_ipv6 (addr_str, &cp);
- if (ret <= 0)
- {
- vty_out (vty, "%% Malformed address %s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* Check current interface address. */
- ifc = connected_check_ipv6 (ifp, (struct prefix *) &cp);
- if (! ifc)
- {
- vty_out (vty, "%% Can't find address%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* This is not configured address. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- return CMD_WARNING;
- /* This is not real address or interface is not active. */
- if (! CHECK_FLAG (ifc->conf, ZEBRA_IFC_REAL)
- || ! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- listnode_delete (ifp->connected, ifc);
- connected_free (ifc);
- return CMD_WARNING;
- }
- /* This is real route. */
- ret = if_prefix_delete_ipv6 (ifp, ifc);
- if (ret < 0)
- {
- vty_out (vty, "%% Can't unset interface IP address: %s.%s",
- strerror(errno), VTY_NEWLINE);
- return CMD_WARNING;
- }
- /* Redistribute this information. */
- zebra_interface_address_delete_update (ifp, ifc);
- /* Remove connected route. */
- connected_down_ipv6 (ifp, ifc);
- /* Free address information. */
- listnode_delete (ifp->connected, ifc);
- connected_free (ifc);
- return CMD_SUCCESS;
- }
- DEFUN (ipv6_address,
- ipv6_address_cmd,
- "ipv6 address X:X::X:X/M",
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IPv6 address (e.g. 3ffe:506::1/48)n")
- {
- return ipv6_address_install (vty, vty->index, argv[0], NULL, NULL, 0);
- }
- DEFUN (no_ipv6_address,
- no_ipv6_address_cmd,
- "no ipv6 address X:X::X:X/M",
- NO_STR
- "Interface Internet Protocol config commandsn"
- "Set the IP address of an interfacen"
- "IPv6 address (e.g. 3ffe:506::1/48)n")
- {
- return ipv6_address_uninstall (vty, vty->index, argv[0], NULL, NULL, 0);
- }
- #endif /* HAVE_IPV6 */
- #ifdef KAME
- DEFUN (ip_tunnel,
- ip_tunnel_cmd,
- "ip tunnel IP_address IP_address",
- "KAME ip tunneling configuration commandsn"
- "Set FROM IP address and TO IP addressn")
- {
- return CMD_SUCCESS;
- }
- DEFUN (no_ip_tunnel, no_ip_tunnel_cmd,
- "no ip tunnel",
- NO_STR
- "Set FROM IP address and TO IP addressn")
- {
- return CMD_SUCCESS;
- }
- #endif /* KAME */
- int
- if_config_write (struct vty *vty)
- {
- listnode node;
- struct interface *ifp;
- char buf[BUFSIZ];
- for (node = listhead (iflist); node; nextnode (node))
- {
- struct zebra_if *if_data;
- listnode addrnode;
- struct connected *ifc;
- struct prefix *p;
- ifp = getdata (node);
- if_data = ifp->info;
-
- vty_out (vty, "interface %s%s", ifp->name,
- VTY_NEWLINE);
- if (ifp->desc)
- vty_out (vty, " description %s%s", ifp->desc,
- VTY_NEWLINE);
- /* Assign bandwidth here to avoid unnecessary interface flap
- while processing config script */
- if (ifp->bandwidth != 0)
- vty_out(vty, " bandwidth %u%s", ifp->bandwidth, VTY_NEWLINE);
- for (addrnode = listhead (ifp->connected); addrnode; nextnode (addrnode))
- {
- ifc = getdata (addrnode);
- if (CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED))
- {
- p = ifc->address;
- vty_out (vty, " ip%s address %s/%d",
- p->family == AF_INET ? "" : "v6",
- inet_ntop (p->family, &p->u.prefix, buf, BUFSIZ),
- p->prefixlen);
- if (CHECK_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY))
- vty_out (vty, " secondary");
-
- if (ifc->label)
- vty_out (vty, " label %s", ifc->label);
- vty_out (vty, "%s", VTY_NEWLINE);
- }
- }
- if (if_data)
- {
- if (if_data->shutdown == IF_ZEBRA_SHUTDOWN_ON)
- vty_out (vty, " shutdown%s", VTY_NEWLINE);
- if (if_data->multicast != IF_ZEBRA_MULTICAST_UNSPEC)
- vty_out (vty, " %smulticast%s",
- if_data->multicast == IF_ZEBRA_MULTICAST_ON ? "" : "no ",
- VTY_NEWLINE);
- }
- #ifdef RTADV
- rtadv_config_write (vty, ifp);
- #endif /* RTADV */
- #ifdef HAVE_IRDP
- irdp_config_write (vty, ifp);
- #endif /* IRDP */
- vty_out (vty, "!%s", VTY_NEWLINE);
- }
- return 0;
- }
- /* Allocate and initialize interface vector. */
- void
- zebra_if_init ()
- {
- /* Initialize interface and new hook. */
- if_init ();
- if_add_hook (IF_NEW_HOOK, if_zebra_new_hook);
- if_add_hook (IF_DELETE_HOOK, if_zebra_delete_hook);
-
- /* Install configuration write function. */
- install_node (&interface_node, if_config_write);
- install_element (VIEW_NODE, &show_interface_cmd);
- install_element (ENABLE_NODE, &show_interface_cmd);
- install_element (CONFIG_NODE, &zebra_interface_cmd);
- install_element (CONFIG_NODE, &no_zebra_interface_cmd);
- install_default (INTERFACE_NODE);
- install_element (INTERFACE_NODE, &interface_desc_cmd);
- install_element (INTERFACE_NODE, &no_interface_desc_cmd);
- install_element (INTERFACE_NODE, &multicast_cmd);
- install_element (INTERFACE_NODE, &no_multicast_cmd);
- install_element (INTERFACE_NODE, &shutdown_if_cmd);
- install_element (INTERFACE_NODE, &no_shutdown_if_cmd);
- install_element (INTERFACE_NODE, &bandwidth_if_cmd);
- install_element (INTERFACE_NODE, &no_bandwidth_if_cmd);
- install_element (INTERFACE_NODE, &no_bandwidth_if_val_cmd);
- install_element (INTERFACE_NODE, &ip_address_cmd);
- install_element (INTERFACE_NODE, &no_ip_address_cmd);
- #ifdef HAVE_IPV6
- install_element (INTERFACE_NODE, &ipv6_address_cmd);
- install_element (INTERFACE_NODE, &no_ipv6_address_cmd);
- #endif /* HAVE_IPV6 */
- #ifdef KAME
- install_element (INTERFACE_NODE, &ip_tunnel_cmd);
- install_element (INTERFACE_NODE, &no_ip_tunnel_cmd);
- #endif /* KAME */
- #ifdef HAVE_NETLINK
- install_element (INTERFACE_NODE, &ip_address_secondary_cmd);
- install_element (INTERFACE_NODE, &ip_address_label_cmd);
- install_element (INTERFACE_NODE, &no_ip_address_secondary_cmd);
- install_element (INTERFACE_NODE, &no_ip_address_label_cmd);
- #endif /* HAVE_NETLINK */
- }