diff options
Diffstat (limited to 'zebra/interface.c')
| -rw-r--r-- | zebra/interface.c | 1387 |
1 files changed, 1387 insertions, 0 deletions
diff --git a/zebra/interface.c b/zebra/interface.c new file mode 100644 index 00000000..5629ebb3 --- /dev/null +++ b/zebra/interface.c @@ -0,0 +1,1387 @@ +/* + * 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 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; + 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; + 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 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_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 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_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 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_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 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_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 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); + + 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, &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 */ +} |