/* * 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 #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_operative(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_operative(ifp)) connected_up_ipv6 (ifp, ifc); } #endif /* HAVE_IPV6 */ } } } /* Handle interface addition */ void if_add_update (struct interface *ifp) { struct zebra_if *if_data; if_data = ifp->info; if (if_data->multicast == IF_ZEBRA_MULTICAST_ON) if_set_flags (ifp, IFF_MULTICAST); else if (if_data->multicast == IF_ZEBRA_MULTICAST_OFF) if_unset_flags (ifp, IFF_MULTICAST); 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_operative (ifp)) { if_get_flags (ifp); if (! if_is_operative (ifp)) if_down (ifp); } else { if_get_flags (ifp); if (if_is_operative (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 is ", ifp->name); if (if_is_up(ifp)) { vty_out (vty, "up, line protocol "); if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION)) { if (if_is_running(ifp)) vty_out (vty, "is up%s", VTY_NEWLINE); else vty_out (vty, "is down%s", VTY_NEWLINE); } else { vty_out (vty, "detection is disabled%s", VTY_NEWLINE); } } else { vty_out (vty, "down%s", 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 configure\n" "Interface's name\n") { 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 configuration\n" "Interface's name\n") { 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 configuration\n" "Inteface name\n") { 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 interface\n") { int ret; struct interface *ifp; struct zebra_if *if_data; ifp = (struct interface *) vty->index; if (CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) { 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 interface\n") { int ret; struct interface *ifp; struct zebra_if *if_data; ifp = (struct interface *) vty->index; if (CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE)) { 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 (linkdetect, linkdetect_cmd, "link-detect", "Enable link detection on interface\n") { int ret; struct interface *ifp; int if_was_operative; ifp = (struct interface *) vty->index; if_was_operative = if_is_operative(ifp); SET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION); /* When linkdetection is enabled, if might come down */ if (!if_is_operative(ifp) && if_was_operative) if_down(ifp); /* FIXME: Will defer status change forwarding if interface does not come down! */ return CMD_SUCCESS; } DEFUN (no_linkdetect, no_linkdetect_cmd, "no link-detect", NO_STR "Disable link detection on interface\n") { int ret; struct interface *ifp; int if_was_operative; ifp = (struct interface *) vty->index; if_was_operative = if_is_operative(ifp); UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION); /* Interface may come up after disabling link detection */ if (if_is_operative(ifp) && !if_was_operative) if_up(ifp); /* FIXME: see linkdetect_cmd */ return CMD_SUCCESS; } DEFUN (shutdown_if, shutdown_if_cmd, "shutdown", "Shutdown the selected interface\n") { 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 interface\n") { 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 parameter\n" "Bandwidth in kilobits\n") { 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_operative (ifp)) zebra_interface_up_update (ifp); return CMD_SUCCESS; } DEFUN (no_bandwidth_if, no_bandwidth_if_cmd, "no bandwidth", NO_STR "Set bandwidth informational parameter\n") { struct interface *ifp; ifp = (struct interface *) vty->index; ifp->bandwidth = 0; /* force protocols to recalculate routes due to cost change */ if (if_is_operative (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 parameter\n" "Bandwidth in kilobits\n") 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_operative(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 commands\n" "Set the IP address of an interface\n" "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 commands\n" "Set the IP address of an interface\n" "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 commands\n" "Set the IP address of an interface\n" "IP address (e.g. 10.0.0.1/8)\n" "Secondary IP address\n") { 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 commands\n" "Set the IP address of an interface\n" "IP address (e.g. 10.0.0.1/8)\n" "Label of this address\n" "Label\n") { 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 commands\n" "Set the IP address of an interface\n" "IP address (e.g. 10.0.0.1/8)\n" "Secondary IP address\n") { 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 commands\n" "Set the IP address of an interface\n" "IP address (e.g. 10.0.0.1/8)\n" "Label of this address\n" "Label\n") { 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_operative(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 commands\n" "Set the IP address of an interface\n" "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 commands\n" "Set the IP address of an interface\n" "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 commands\n" "Set FROM IP address and TO IP address\n") { return CMD_SUCCESS; } DEFUN (no_ip_tunnel, no_ip_tunnel_cmd, "no ip tunnel", NO_STR "Set FROM IP address and TO IP address\n") { 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); if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION)) vty_out(vty, " link-detect%s", 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 */ 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, &linkdetect_cmd); install_element (INTERFACE_NODE, &no_linkdetect_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 */ }