forked from Mirror/frr
15a2b089ce
2006-05-04 Paul Jakma <paul.jakma@sun.com> * (general) Fixes for bugs #261 and 262. Thanks to Konstantin V. Gavrilenko <kos@arhont.com> for the problem reports, testing of a series of proposed patches and comment on the proposed changes in behaviour. * rip_interface.c: (ip_rip_authentication_mode_cmd) Parse all of the command before making any changes to configured state. * ripd.c: (rip_read) RIP version control should be absolute and always apply, fixes bug #261 by allowing RIPv1 to be disabled. Fix bug #262: If authentication is enabled, then unauthenticated packets should not be accepted. We do however make an exception for RIPv1 REQUEST packets, to which we will reply as RIPv1 can now be disabled fully, to allow ripd to still provide routing /information/ to simple devices.
2147 lines
51 KiB
C
2147 lines
51 KiB
C
/* Interface related function for RIP.
|
||
* Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org>
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Zebra; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <zebra.h>
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#include "command.h"
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#include "if.h"
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#include "sockunion.h"
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#include "prefix.h"
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#include "memory.h"
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#include "network.h"
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#include "table.h"
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#include "log.h"
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#include "stream.h"
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#include "thread.h"
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#include "zclient.h"
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#include "filter.h"
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#include "sockopt.h"
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#include "privs.h"
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#include "zebra/connected.h"
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#include "ripd/ripd.h"
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#include "ripd/rip_debug.h"
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#include "ripd/rip_interface.h"
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/* static prototypes */
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static void rip_enable_apply (struct interface *);
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static void rip_passive_interface_apply (struct interface *);
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static int rip_if_down(struct interface *ifp);
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static int rip_enable_if_lookup (const char *ifname);
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static int rip_enable_network_lookup2 (struct connected *connected);
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static void rip_enable_apply_all (void);
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struct message ri_version_msg[] =
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{
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{RI_RIP_VERSION_1, "1"},
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{RI_RIP_VERSION_2, "2"},
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{RI_RIP_VERSION_1_AND_2, "1 2"},
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{0, NULL}
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};
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extern struct zebra_privs_t ripd_privs;
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/* RIP enabled network vector. */
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vector rip_enable_interface;
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/* RIP enabled interface table. */
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struct route_table *rip_enable_network;
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/* Vector to store passive-interface name. */
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static int passive_default; /* are we in passive-interface default mode? */
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vector Vrip_passive_nondefault;
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/* Join to the RIP version 2 multicast group. */
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static int
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ipv4_multicast_join (int sock,
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struct in_addr group,
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struct in_addr ifa,
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unsigned int ifindex)
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{
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int ret;
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ret = setsockopt_multicast_ipv4 (sock,
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IP_ADD_MEMBERSHIP,
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ifa,
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group.s_addr,
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ifindex);
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if (ret < 0)
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zlog (NULL, LOG_INFO, "can't setsockopt IP_ADD_MEMBERSHIP %s",
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safe_strerror (errno));
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return ret;
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}
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/* Leave from the RIP version 2 multicast group. */
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static int
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ipv4_multicast_leave (int sock,
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struct in_addr group,
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struct in_addr ifa,
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unsigned int ifindex)
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{
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int ret;
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ret = setsockopt_multicast_ipv4 (sock,
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IP_DROP_MEMBERSHIP,
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ifa,
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group.s_addr,
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ifindex);
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if (ret < 0)
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zlog (NULL, LOG_INFO, "can't setsockopt IP_DROP_MEMBERSHIP");
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return ret;
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}
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/* Allocate new RIP's interface configuration. */
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static struct rip_interface *
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rip_interface_new (void)
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{
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struct rip_interface *ri;
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ri = XMALLOC (MTYPE_RIP_INTERFACE, sizeof (struct rip_interface));
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memset (ri, 0, sizeof (struct rip_interface));
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/* Default authentication type is simple password for Cisco
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compatibility. */
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ri->auth_type = RIP_NO_AUTH;
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ri->md5_auth_len = RIP_AUTH_MD5_COMPAT_SIZE;
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/* Set default split-horizon behavior. If the interface is Frame
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Relay or SMDS is enabled, the default value for split-horizon is
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off. But currently Zebra does detect Frame Relay or SMDS
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interface. So all interface is set to split horizon. */
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ri->split_horizon_default = RIP_SPLIT_HORIZON;
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ri->split_horizon = ri->split_horizon_default;
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return ri;
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}
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void
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rip_interface_multicast_set (int sock, struct connected *connected)
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{
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struct in_addr addr;
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struct prefix_ipv4 *p;
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assert (connected != NULL);
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if (if_is_pointopoint(connected->ifp) && CONNECTED_DEST_HOST(connected))
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p = (struct prefix_ipv4 *) connected->destination;
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else
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p = (struct prefix_ipv4 *) connected->address;
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addr = p->prefix;
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if (setsockopt_multicast_ipv4 (sock, IP_MULTICAST_IF, addr, 0,
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connected->ifp->ifindex) < 0)
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{
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zlog_warn ("Can't setsockopt IP_MULTICAST_IF on fd %d to "
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"source address %s for interface %s",
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sock, inet_ntoa(addr),
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connected->ifp->name);
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}
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return;
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}
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/* Send RIP request packet to specified interface. */
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static void
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rip_request_interface_send (struct interface *ifp, u_char version)
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{
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struct sockaddr_in to;
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/* RIPv2 support multicast. */
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if (version == RIPv2 && if_is_multicast (ifp))
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{
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("multicast request on %s", ifp->name);
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rip_request_send (NULL, ifp, version, NULL);
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return;
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}
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/* RIPv1 and non multicast interface. */
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if (if_is_pointopoint (ifp) || if_is_broadcast (ifp))
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{
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struct listnode *cnode, *cnnode;
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struct connected *connected;
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("broadcast request to %s", ifp->name);
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for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, connected))
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{
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if (connected->address->family == AF_INET)
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{
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memset (&to, 0, sizeof (struct sockaddr_in));
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to.sin_port = htons (RIP_PORT_DEFAULT);
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if (connected->destination)
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/* use specified broadcast or point-to-point destination addr */
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to.sin_addr = connected->destination->u.prefix4;
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else
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/* calculate the appropriate broadcast address */
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to.sin_addr.s_addr =
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ipv4_broadcast_addr(connected->address->u.prefix4.s_addr,
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connected->address->prefixlen);
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("SEND request to %s", inet_ntoa (to.sin_addr));
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rip_request_send (&to, ifp, version, connected);
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}
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}
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}
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}
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/* This will be executed when interface goes up. */
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static void
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rip_request_interface (struct interface *ifp)
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{
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struct rip_interface *ri;
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/* In default ripd doesn't send RIP_REQUEST to the loopback interface. */
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if (if_is_loopback (ifp))
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return;
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/* If interface is down, don't send RIP packet. */
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if (! if_is_operative (ifp))
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return;
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/* Fetch RIP interface information. */
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ri = ifp->info;
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/* If there is no version configuration in the interface,
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use rip's version setting. */
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{
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int vsend = ((ri->ri_send == RI_RIP_UNSPEC) ?
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rip->version_send : ri->ri_send);
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if (vsend & RIPv1)
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rip_request_interface_send (ifp, RIPv1);
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if (vsend & RIPv2)
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rip_request_interface_send (ifp, RIPv2);
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}
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}
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/* Send RIP request to the neighbor. */
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static void
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rip_request_neighbor (struct in_addr addr)
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{
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struct sockaddr_in to;
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memset (&to, 0, sizeof (struct sockaddr_in));
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to.sin_port = htons (RIP_PORT_DEFAULT);
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to.sin_addr = addr;
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rip_request_send (&to, NULL, rip->version_send, NULL);
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}
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/* Request routes at all interfaces. */
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static void
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rip_request_neighbor_all (void)
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{
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struct route_node *rp;
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if (! rip)
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return;
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("request to the all neighbor");
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/* Send request to all neighbor. */
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for (rp = route_top (rip->neighbor); rp; rp = route_next (rp))
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if (rp->info)
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rip_request_neighbor (rp->p.u.prefix4);
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}
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/* Multicast packet receive socket. */
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static int
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rip_multicast_join (struct interface *ifp, int sock)
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{
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struct listnode *cnode;
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struct connected *ifc;
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if (if_is_operative (ifp) && if_is_multicast (ifp))
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{
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("multicast join at %s", ifp->name);
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for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, ifc))
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{
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struct prefix_ipv4 *p;
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struct in_addr group;
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p = (struct prefix_ipv4 *) ifc->address;
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if (p->family != AF_INET)
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continue;
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group.s_addr = htonl (INADDR_RIP_GROUP);
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if (ipv4_multicast_join (sock, group, p->prefix, ifp->ifindex) < 0)
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return -1;
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else
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return 0;
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}
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}
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return 0;
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}
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/* Leave from multicast group. */
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static void
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rip_multicast_leave (struct interface *ifp, int sock)
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{
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struct listnode *cnode;
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struct connected *connected;
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if (if_is_up (ifp) && if_is_multicast (ifp))
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{
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if (IS_RIP_DEBUG_EVENT)
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zlog_debug ("multicast leave from %s", ifp->name);
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for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected))
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{
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struct prefix_ipv4 *p;
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struct in_addr group;
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p = (struct prefix_ipv4 *) connected->address;
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if (p->family != AF_INET)
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continue;
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group.s_addr = htonl (INADDR_RIP_GROUP);
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if (ipv4_multicast_leave (sock, group, p->prefix, ifp->ifindex) == 0)
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return;
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}
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}
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}
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/* Is there and address on interface that I could use ? */
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static int
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rip_if_ipv4_address_check (struct interface *ifp)
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{
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struct listnode *nn;
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struct connected *connected;
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int count = 0;
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for (ALL_LIST_ELEMENTS_RO (ifp->connected, nn, connected))
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{
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struct prefix *p;
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p = connected->address;
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if (p->family == AF_INET)
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count++;
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}
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return count;
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}
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/* Does this address belongs to me ? */
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int
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if_check_address (struct in_addr addr)
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{
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struct listnode *node;
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struct interface *ifp;
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for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
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{
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struct listnode *cnode;
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struct connected *connected;
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for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected))
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{
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struct prefix_ipv4 *p;
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p = (struct prefix_ipv4 *) connected->address;
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if (p->family != AF_INET)
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continue;
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if (IPV4_ADDR_CMP (&p->prefix, &addr) == 0)
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return 1;
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}
|
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}
|
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return 0;
|
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}
|
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|
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/* Inteface link down message processing. */
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int
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rip_interface_down (int command, struct zclient *zclient, zebra_size_t length)
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{
|
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struct interface *ifp;
|
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struct stream *s;
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s = zclient->ibuf;
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/* zebra_interface_state_read() updates interface structure in
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iflist. */
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ifp = zebra_interface_state_read(s);
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if (ifp == NULL)
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return 0;
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rip_if_down(ifp);
|
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|
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if (IS_RIP_DEBUG_ZEBRA)
|
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zlog_debug ("interface %s index %d flags %ld metric %d mtu %d is down",
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ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
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|
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return 0;
|
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}
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/* Inteface link up message processing */
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int
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rip_interface_up (int command, struct zclient *zclient, zebra_size_t length)
|
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{
|
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struct interface *ifp;
|
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/* zebra_interface_state_read () updates interface structure in
|
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iflist. */
|
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ifp = zebra_interface_state_read (zclient->ibuf);
|
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|
||
if (ifp == NULL)
|
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return 0;
|
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|
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if (IS_RIP_DEBUG_ZEBRA)
|
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zlog_debug ("interface %s index %d flags %ld metric %d mtu %d is up",
|
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ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
|
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/* Check if this interface is RIP enabled or not.*/
|
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rip_enable_apply (ifp);
|
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|
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/* Check for a passive interface */
|
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rip_passive_interface_apply (ifp);
|
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|
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/* Apply distribute list to the all interface. */
|
||
rip_distribute_update_interface (ifp);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Inteface addition message from zebra. */
|
||
int
|
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rip_interface_add (int command, struct zclient *zclient, zebra_size_t length)
|
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{
|
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struct interface *ifp;
|
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|
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ifp = zebra_interface_add_read (zclient->ibuf);
|
||
|
||
if (IS_RIP_DEBUG_ZEBRA)
|
||
zlog_debug ("interface add %s index %d flags %ld metric %d mtu %d",
|
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ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
|
||
|
||
/* Check if this interface is RIP enabled or not.*/
|
||
rip_enable_apply (ifp);
|
||
|
||
/* Check for a passive interface */
|
||
rip_passive_interface_apply (ifp);
|
||
|
||
/* Apply distribute list to the all interface. */
|
||
rip_distribute_update_interface (ifp);
|
||
|
||
/* rip_request_neighbor_all (); */
|
||
|
||
/* Check interface routemap. */
|
||
rip_if_rmap_update_interface (ifp);
|
||
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
rip_interface_delete (int command, struct zclient *zclient,
|
||
zebra_size_t length)
|
||
{
|
||
struct interface *ifp;
|
||
struct stream *s;
|
||
|
||
|
||
s = zclient->ibuf;
|
||
/* zebra_interface_state_read() updates interface structure in iflist */
|
||
ifp = zebra_interface_state_read(s);
|
||
|
||
if (ifp == NULL)
|
||
return 0;
|
||
|
||
if (if_is_up (ifp)) {
|
||
rip_if_down(ifp);
|
||
}
|
||
|
||
zlog_info("interface delete %s index %d flags %ld metric %d mtu %d",
|
||
ifp->name, ifp->ifindex, ifp->flags, ifp->metric, ifp->mtu);
|
||
|
||
/* To support pseudo interface do not free interface structure. */
|
||
/* if_delete(ifp); */
|
||
ifp->ifindex = IFINDEX_INTERNAL;
|
||
|
||
return 0;
|
||
}
|
||
|
||
void
|
||
rip_interface_clean (void)
|
||
{
|
||
struct listnode *node;
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
|
||
{
|
||
ri = ifp->info;
|
||
|
||
ri->enable_network = 0;
|
||
ri->enable_interface = 0;
|
||
ri->running = 0;
|
||
|
||
if (ri->t_wakeup)
|
||
{
|
||
thread_cancel (ri->t_wakeup);
|
||
ri->t_wakeup = NULL;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
rip_interface_reset (void)
|
||
{
|
||
struct listnode *node;
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
|
||
{
|
||
ri = ifp->info;
|
||
|
||
ri->enable_network = 0;
|
||
ri->enable_interface = 0;
|
||
ri->running = 0;
|
||
|
||
ri->ri_send = RI_RIP_UNSPEC;
|
||
ri->ri_receive = RI_RIP_UNSPEC;
|
||
|
||
ri->auth_type = RIP_NO_AUTH;
|
||
|
||
if (ri->auth_str)
|
||
{
|
||
free (ri->auth_str);
|
||
ri->auth_str = NULL;
|
||
}
|
||
if (ri->key_chain)
|
||
{
|
||
free (ri->key_chain);
|
||
ri->key_chain = NULL;
|
||
}
|
||
|
||
ri->split_horizon = RIP_NO_SPLIT_HORIZON;
|
||
ri->split_horizon_default = RIP_NO_SPLIT_HORIZON;
|
||
|
||
ri->list[RIP_FILTER_IN] = NULL;
|
||
ri->list[RIP_FILTER_OUT] = NULL;
|
||
|
||
ri->prefix[RIP_FILTER_IN] = NULL;
|
||
ri->prefix[RIP_FILTER_OUT] = NULL;
|
||
|
||
if (ri->t_wakeup)
|
||
{
|
||
thread_cancel (ri->t_wakeup);
|
||
ri->t_wakeup = NULL;
|
||
}
|
||
|
||
ri->recv_badpackets = 0;
|
||
ri->recv_badroutes = 0;
|
||
ri->sent_updates = 0;
|
||
|
||
ri->passive = 0;
|
||
}
|
||
}
|
||
|
||
int
|
||
rip_if_down(struct interface *ifp)
|
||
{
|
||
struct route_node *rp;
|
||
struct rip_info *rinfo;
|
||
struct rip_interface *ri = NULL;
|
||
if (rip)
|
||
{
|
||
for (rp = route_top (rip->table); rp; rp = route_next (rp))
|
||
if ((rinfo = rp->info) != NULL)
|
||
{
|
||
/* Routes got through this interface. */
|
||
if (rinfo->ifindex == ifp->ifindex &&
|
||
rinfo->type == ZEBRA_ROUTE_RIP &&
|
||
rinfo->sub_type == RIP_ROUTE_RTE)
|
||
{
|
||
rip_zebra_ipv4_delete ((struct prefix_ipv4 *) &rp->p,
|
||
&rinfo->nexthop,
|
||
rinfo->ifindex);
|
||
|
||
rip_redistribute_delete (rinfo->type,rinfo->sub_type,
|
||
(struct prefix_ipv4 *)&rp->p,
|
||
rinfo->ifindex);
|
||
}
|
||
else
|
||
{
|
||
/* All redistributed routes but static and system */
|
||
if ((rinfo->ifindex == ifp->ifindex) &&
|
||
/* (rinfo->type != ZEBRA_ROUTE_STATIC) && */
|
||
(rinfo->type != ZEBRA_ROUTE_SYSTEM))
|
||
rip_redistribute_delete (rinfo->type,rinfo->sub_type,
|
||
(struct prefix_ipv4 *)&rp->p,
|
||
rinfo->ifindex);
|
||
}
|
||
}
|
||
}
|
||
|
||
ri = ifp->info;
|
||
|
||
if (ri->running)
|
||
{
|
||
if (IS_RIP_DEBUG_EVENT)
|
||
zlog_debug ("turn off %s", ifp->name);
|
||
|
||
/* Leave from multicast group. */
|
||
rip_multicast_leave (ifp, rip->sock);
|
||
|
||
ri->running = 0;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Needed for stop RIP process. */
|
||
void
|
||
rip_if_down_all ()
|
||
{
|
||
struct interface *ifp;
|
||
struct listnode *node, *nnode;
|
||
|
||
for (ALL_LIST_ELEMENTS (iflist, node, nnode, ifp))
|
||
rip_if_down (ifp);
|
||
}
|
||
|
||
static void
|
||
rip_apply_address_add (struct connected *ifc)
|
||
{
|
||
struct prefix_ipv4 address;
|
||
struct prefix *p;
|
||
|
||
if (!rip)
|
||
return;
|
||
|
||
if (! if_is_up(ifc->ifp))
|
||
return;
|
||
|
||
p = ifc->address;
|
||
|
||
memset (&address, 0, sizeof (address));
|
||
address.family = p->family;
|
||
address.prefix = p->u.prefix4;
|
||
address.prefixlen = p->prefixlen;
|
||
apply_mask_ipv4(&address);
|
||
|
||
/* Check if this interface is RIP enabled or not
|
||
or Check if this address's prefix is RIP enabled */
|
||
if ((rip_enable_if_lookup(ifc->ifp->name) >= 0) ||
|
||
(rip_enable_network_lookup2(ifc) >= 0))
|
||
rip_redistribute_add(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE,
|
||
&address, ifc->ifp->ifindex, NULL, 0, 0);
|
||
|
||
}
|
||
|
||
int
|
||
rip_interface_address_add (int command, struct zclient *zclient,
|
||
zebra_size_t length)
|
||
{
|
||
struct connected *ifc;
|
||
struct prefix *p;
|
||
|
||
ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
|
||
zclient->ibuf);
|
||
|
||
if (ifc == NULL)
|
||
return 0;
|
||
|
||
p = ifc->address;
|
||
|
||
if (p->family == AF_INET)
|
||
{
|
||
if (IS_RIP_DEBUG_ZEBRA)
|
||
zlog_debug ("connected address %s/%d is added",
|
||
inet_ntoa (p->u.prefix4), p->prefixlen);
|
||
|
||
rip_enable_apply(ifc->ifp);
|
||
/* Check if this prefix needs to be redistributed */
|
||
rip_apply_address_add(ifc);
|
||
|
||
#ifdef HAVE_SNMP
|
||
rip_ifaddr_add (ifc->ifp, ifc);
|
||
#endif /* HAVE_SNMP */
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
rip_apply_address_del (struct connected *ifc) {
|
||
struct prefix_ipv4 address;
|
||
struct prefix *p;
|
||
|
||
if (!rip)
|
||
return;
|
||
|
||
if (! if_is_up(ifc->ifp))
|
||
return;
|
||
|
||
p = ifc->address;
|
||
|
||
memset (&address, 0, sizeof (address));
|
||
address.family = p->family;
|
||
address.prefix = p->u.prefix4;
|
||
address.prefixlen = p->prefixlen;
|
||
apply_mask_ipv4(&address);
|
||
|
||
rip_redistribute_delete(ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE,
|
||
&address, ifc->ifp->ifindex);
|
||
}
|
||
|
||
int
|
||
rip_interface_address_delete (int command, struct zclient *zclient,
|
||
zebra_size_t length)
|
||
{
|
||
struct connected *ifc;
|
||
struct prefix *p;
|
||
|
||
ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
|
||
zclient->ibuf);
|
||
|
||
if (ifc)
|
||
{
|
||
p = ifc->address;
|
||
if (p->family == AF_INET)
|
||
{
|
||
if (IS_RIP_DEBUG_ZEBRA)
|
||
zlog_debug ("connected address %s/%d is deleted",
|
||
inet_ntoa (p->u.prefix4), p->prefixlen);
|
||
|
||
#ifdef HAVE_SNMP
|
||
rip_ifaddr_delete (ifc->ifp, ifc);
|
||
#endif /* HAVE_SNMP */
|
||
|
||
/* Chech wether this prefix needs to be removed */
|
||
rip_apply_address_del(ifc);
|
||
|
||
}
|
||
|
||
connected_free (ifc);
|
||
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Check interface is enabled by network statement. */
|
||
/* Check wether the interface has at least a connected prefix that
|
||
* is within the ripng_enable_network table. */
|
||
static int
|
||
rip_enable_network_lookup_if (struct interface *ifp)
|
||
{
|
||
struct listnode *node, *nnode;
|
||
struct connected *connected;
|
||
struct prefix_ipv4 address;
|
||
|
||
for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, connected))
|
||
{
|
||
struct prefix *p;
|
||
struct route_node *node;
|
||
|
||
p = connected->address;
|
||
|
||
if (p->family == AF_INET)
|
||
{
|
||
address.family = AF_INET;
|
||
address.prefix = p->u.prefix4;
|
||
address.prefixlen = IPV4_MAX_BITLEN;
|
||
|
||
node = route_node_match (rip_enable_network,
|
||
(struct prefix *)&address);
|
||
if (node)
|
||
{
|
||
route_unlock_node (node);
|
||
return 1;
|
||
}
|
||
}
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
/* Check wether connected is within the ripng_enable_network table. */
|
||
int
|
||
rip_enable_network_lookup2 (struct connected *connected)
|
||
{
|
||
struct prefix_ipv4 address;
|
||
struct prefix *p;
|
||
|
||
p = connected->address;
|
||
|
||
if (p->family == AF_INET) {
|
||
struct route_node *node;
|
||
|
||
address.family = p->family;
|
||
address.prefix = p->u.prefix4;
|
||
address.prefixlen = IPV4_MAX_BITLEN;
|
||
|
||
/* LPM on p->family, p->u.prefix4/IPV4_MAX_BITLEN within rip_enable_network */
|
||
node = route_node_match (rip_enable_network,
|
||
(struct prefix *)&address);
|
||
|
||
if (node) {
|
||
route_unlock_node (node);
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
return -1;
|
||
}
|
||
/* Add RIP enable network. */
|
||
static int
|
||
rip_enable_network_add (struct prefix *p)
|
||
{
|
||
struct route_node *node;
|
||
|
||
node = route_node_get (rip_enable_network, p);
|
||
|
||
if (node->info)
|
||
{
|
||
route_unlock_node (node);
|
||
return -1;
|
||
}
|
||
else
|
||
node->info = (char *) "enabled";
|
||
|
||
/* XXX: One should find a better solution than a generic one */
|
||
rip_enable_apply_all();
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Delete RIP enable network. */
|
||
static int
|
||
rip_enable_network_delete (struct prefix *p)
|
||
{
|
||
struct route_node *node;
|
||
|
||
node = route_node_lookup (rip_enable_network, p);
|
||
if (node)
|
||
{
|
||
node->info = NULL;
|
||
|
||
/* Unlock info lock. */
|
||
route_unlock_node (node);
|
||
|
||
/* Unlock lookup lock. */
|
||
route_unlock_node (node);
|
||
|
||
/* XXX: One should find a better solution than a generic one */
|
||
rip_enable_apply_all ();
|
||
|
||
return 1;
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
/* Check interface is enabled by ifname statement. */
|
||
static int
|
||
rip_enable_if_lookup (const char *ifname)
|
||
{
|
||
unsigned int i;
|
||
char *str;
|
||
|
||
for (i = 0; i < vector_active (rip_enable_interface); i++)
|
||
if ((str = vector_slot (rip_enable_interface, i)) != NULL)
|
||
if (strcmp (str, ifname) == 0)
|
||
return i;
|
||
return -1;
|
||
}
|
||
|
||
/* Add interface to rip_enable_if. */
|
||
static int
|
||
rip_enable_if_add (const char *ifname)
|
||
{
|
||
int ret;
|
||
|
||
ret = rip_enable_if_lookup (ifname);
|
||
if (ret >= 0)
|
||
return -1;
|
||
|
||
vector_set (rip_enable_interface, strdup (ifname));
|
||
|
||
rip_enable_apply_all(); /* TODOVJ */
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Delete interface from rip_enable_if. */
|
||
static int
|
||
rip_enable_if_delete (const char *ifname)
|
||
{
|
||
int index;
|
||
char *str;
|
||
|
||
index = rip_enable_if_lookup (ifname);
|
||
if (index < 0)
|
||
return -1;
|
||
|
||
str = vector_slot (rip_enable_interface, index);
|
||
free (str);
|
||
vector_unset (rip_enable_interface, index);
|
||
|
||
rip_enable_apply_all(); /* TODOVJ */
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Join to multicast group and send request to the interface. */
|
||
static int
|
||
rip_interface_wakeup (struct thread *t)
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
/* Get interface. */
|
||
ifp = THREAD_ARG (t);
|
||
|
||
ri = ifp->info;
|
||
ri->t_wakeup = NULL;
|
||
|
||
/* Join to multicast group. */
|
||
if (rip_multicast_join (ifp, rip->sock) < 0)
|
||
{
|
||
zlog_err ("multicast join failed, interface %s not running", ifp->name);
|
||
return 0;
|
||
}
|
||
|
||
/* Set running flag. */
|
||
ri->running = 1;
|
||
|
||
/* Send RIP request to the interface. */
|
||
rip_request_interface (ifp);
|
||
|
||
return 0;
|
||
}
|
||
|
||
int rip_redistribute_check (int);
|
||
|
||
static void
|
||
rip_connect_set (struct interface *ifp, int set)
|
||
{
|
||
struct listnode *node, *nnode;
|
||
struct connected *connected;
|
||
struct prefix_ipv4 address;
|
||
|
||
for (ALL_LIST_ELEMENTS (ifp->connected, node, nnode, connected))
|
||
{
|
||
struct prefix *p;
|
||
p = connected->address;
|
||
|
||
if (p->family != AF_INET)
|
||
continue;
|
||
|
||
address.family = AF_INET;
|
||
address.prefix = p->u.prefix4;
|
||
address.prefixlen = p->prefixlen;
|
||
apply_mask_ipv4 (&address);
|
||
|
||
if (set) {
|
||
/* Check once more wether this prefix is within a "network IF_OR_PREF" one */
|
||
if ((rip_enable_if_lookup(connected->ifp->name) >= 0) ||
|
||
(rip_enable_network_lookup2(connected) >= 0))
|
||
rip_redistribute_add (ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE,
|
||
&address, connected->ifp->ifindex,
|
||
NULL, 0, 0);
|
||
} else
|
||
{
|
||
rip_redistribute_delete (ZEBRA_ROUTE_CONNECT, RIP_ROUTE_INTERFACE,
|
||
&address, connected->ifp->ifindex);
|
||
if (rip_redistribute_check (ZEBRA_ROUTE_CONNECT))
|
||
rip_redistribute_add (ZEBRA_ROUTE_CONNECT, RIP_ROUTE_REDISTRIBUTE,
|
||
&address, connected->ifp->ifindex,
|
||
NULL, 0, 0);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Update interface status. */
|
||
void
|
||
rip_enable_apply (struct interface *ifp)
|
||
{
|
||
int ret;
|
||
struct rip_interface *ri = NULL;
|
||
|
||
/* Check interface. */
|
||
if (! if_is_operative (ifp))
|
||
return;
|
||
|
||
ri = ifp->info;
|
||
|
||
/* Check network configuration. */
|
||
ret = rip_enable_network_lookup_if (ifp);
|
||
|
||
/* If the interface is matched. */
|
||
if (ret > 0)
|
||
ri->enable_network = 1;
|
||
else
|
||
ri->enable_network = 0;
|
||
|
||
/* Check interface name configuration. */
|
||
ret = rip_enable_if_lookup (ifp->name);
|
||
if (ret >= 0)
|
||
ri->enable_interface = 1;
|
||
else
|
||
ri->enable_interface = 0;
|
||
|
||
/* any interface MUST have an IPv4 address */
|
||
if ( ! rip_if_ipv4_address_check (ifp) )
|
||
{
|
||
ri->enable_network = 0;
|
||
ri->enable_interface = 0;
|
||
}
|
||
|
||
/* Update running status of the interface. */
|
||
if (ri->enable_network || ri->enable_interface)
|
||
{
|
||
{
|
||
if (IS_RIP_DEBUG_EVENT)
|
||
zlog_debug ("turn on %s", ifp->name);
|
||
|
||
/* Add interface wake up thread. */
|
||
if (! ri->t_wakeup)
|
||
ri->t_wakeup = thread_add_timer (master, rip_interface_wakeup,
|
||
ifp, 1);
|
||
rip_connect_set (ifp, 1);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (ri->running)
|
||
{
|
||
/* Might as well clean up the route table as well
|
||
* rip_if_down sets to 0 ri->running, and displays "turn off %s"
|
||
**/
|
||
rip_if_down(ifp);
|
||
|
||
rip_connect_set (ifp, 0);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Apply network configuration to all interface. */
|
||
void
|
||
rip_enable_apply_all ()
|
||
{
|
||
struct interface *ifp;
|
||
struct listnode *node, *nnode;
|
||
|
||
/* Check each interface. */
|
||
for (ALL_LIST_ELEMENTS (iflist, node, nnode, ifp))
|
||
rip_enable_apply (ifp);
|
||
}
|
||
|
||
int
|
||
rip_neighbor_lookup (struct sockaddr_in *from)
|
||
{
|
||
struct prefix_ipv4 p;
|
||
struct route_node *node;
|
||
|
||
memset (&p, 0, sizeof (struct prefix_ipv4));
|
||
p.family = AF_INET;
|
||
p.prefix = from->sin_addr;
|
||
p.prefixlen = IPV4_MAX_BITLEN;
|
||
|
||
node = route_node_lookup (rip->neighbor, (struct prefix *) &p);
|
||
if (node)
|
||
{
|
||
route_unlock_node (node);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/* Add new RIP neighbor to the neighbor tree. */
|
||
static int
|
||
rip_neighbor_add (struct prefix_ipv4 *p)
|
||
{
|
||
struct route_node *node;
|
||
|
||
node = route_node_get (rip->neighbor, (struct prefix *) p);
|
||
|
||
if (node->info)
|
||
return -1;
|
||
|
||
node->info = rip->neighbor;
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Delete RIP neighbor from the neighbor tree. */
|
||
static int
|
||
rip_neighbor_delete (struct prefix_ipv4 *p)
|
||
{
|
||
struct route_node *node;
|
||
|
||
/* Lock for look up. */
|
||
node = route_node_lookup (rip->neighbor, (struct prefix *) p);
|
||
if (! node)
|
||
return -1;
|
||
|
||
node->info = NULL;
|
||
|
||
/* Unlock lookup lock. */
|
||
route_unlock_node (node);
|
||
|
||
/* Unlock real neighbor information lock. */
|
||
route_unlock_node (node);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Clear all network and neighbor configuration. */
|
||
void
|
||
rip_clean_network ()
|
||
{
|
||
unsigned int i;
|
||
char *str;
|
||
struct route_node *rn;
|
||
|
||
/* rip_enable_network. */
|
||
for (rn = route_top (rip_enable_network); rn; rn = route_next (rn))
|
||
if (rn->info)
|
||
{
|
||
rn->info = NULL;
|
||
route_unlock_node (rn);
|
||
}
|
||
|
||
/* rip_enable_interface. */
|
||
for (i = 0; i < vector_active (rip_enable_interface); i++)
|
||
if ((str = vector_slot (rip_enable_interface, i)) != NULL)
|
||
{
|
||
free (str);
|
||
vector_slot (rip_enable_interface, i) = NULL;
|
||
}
|
||
}
|
||
|
||
/* Utility function for looking up passive interface settings. */
|
||
static int
|
||
rip_passive_nondefault_lookup (const char *ifname)
|
||
{
|
||
unsigned int i;
|
||
char *str;
|
||
|
||
for (i = 0; i < vector_active (Vrip_passive_nondefault); i++)
|
||
if ((str = vector_slot (Vrip_passive_nondefault, i)) != NULL)
|
||
if (strcmp (str, ifname) == 0)
|
||
return i;
|
||
return -1;
|
||
}
|
||
|
||
void
|
||
rip_passive_interface_apply (struct interface *ifp)
|
||
{
|
||
struct rip_interface *ri;
|
||
|
||
ri = ifp->info;
|
||
|
||
ri->passive = ((rip_passive_nondefault_lookup (ifp->name) < 0) ?
|
||
passive_default : !passive_default);
|
||
|
||
if (IS_RIP_DEBUG_ZEBRA)
|
||
zlog_debug ("interface %s: passive = %d",ifp->name,ri->passive);
|
||
}
|
||
|
||
static void
|
||
rip_passive_interface_apply_all (void)
|
||
{
|
||
struct interface *ifp;
|
||
struct listnode *node, *nnode;
|
||
|
||
for (ALL_LIST_ELEMENTS (iflist, node, nnode, ifp))
|
||
rip_passive_interface_apply (ifp);
|
||
}
|
||
|
||
/* Passive interface. */
|
||
static int
|
||
rip_passive_nondefault_set (struct vty *vty, const char *ifname)
|
||
{
|
||
if (rip_passive_nondefault_lookup (ifname) >= 0)
|
||
return CMD_WARNING;
|
||
|
||
vector_set (Vrip_passive_nondefault, strdup (ifname));
|
||
|
||
rip_passive_interface_apply_all ();
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
static int
|
||
rip_passive_nondefault_unset (struct vty *vty, const char *ifname)
|
||
{
|
||
int i;
|
||
char *str;
|
||
|
||
i = rip_passive_nondefault_lookup (ifname);
|
||
if (i < 0)
|
||
return CMD_WARNING;
|
||
|
||
str = vector_slot (Vrip_passive_nondefault, i);
|
||
free (str);
|
||
vector_unset (Vrip_passive_nondefault, i);
|
||
|
||
rip_passive_interface_apply_all ();
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
/* Free all configured RIP passive-interface settings. */
|
||
void
|
||
rip_passive_nondefault_clean (void)
|
||
{
|
||
unsigned int i;
|
||
char *str;
|
||
|
||
for (i = 0; i < vector_active (Vrip_passive_nondefault); i++)
|
||
if ((str = vector_slot (Vrip_passive_nondefault, i)) != NULL)
|
||
{
|
||
free (str);
|
||
vector_slot (Vrip_passive_nondefault, i) = NULL;
|
||
}
|
||
rip_passive_interface_apply_all ();
|
||
}
|
||
|
||
/* RIP enable network or interface configuration. */
|
||
DEFUN (rip_network,
|
||
rip_network_cmd,
|
||
"network (A.B.C.D/M|WORD)",
|
||
"Enable routing on an IP network\n"
|
||
"IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
|
||
"Interface name\n")
|
||
{
|
||
int ret;
|
||
struct prefix_ipv4 p;
|
||
|
||
ret = str2prefix_ipv4 (argv[0], &p);
|
||
|
||
if (ret)
|
||
ret = rip_enable_network_add ((struct prefix *) &p);
|
||
else
|
||
ret = rip_enable_if_add (argv[0]);
|
||
|
||
if (ret < 0)
|
||
{
|
||
vty_out (vty, "There is a same network configuration %s%s", argv[0],
|
||
VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
/* RIP enable network or interface configuration. */
|
||
DEFUN (no_rip_network,
|
||
no_rip_network_cmd,
|
||
"no network (A.B.C.D/M|WORD)",
|
||
NO_STR
|
||
"Enable routing on an IP network\n"
|
||
"IP prefix <network>/<length>, e.g., 35.0.0.0/8\n"
|
||
"Interface name\n")
|
||
{
|
||
int ret;
|
||
struct prefix_ipv4 p;
|
||
|
||
ret = str2prefix_ipv4 (argv[0], &p);
|
||
|
||
if (ret)
|
||
ret = rip_enable_network_delete ((struct prefix *) &p);
|
||
else
|
||
ret = rip_enable_if_delete (argv[0]);
|
||
|
||
if (ret < 0)
|
||
{
|
||
vty_out (vty, "Can't find network configuration %s%s", argv[0],
|
||
VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
/* RIP neighbor configuration set. */
|
||
DEFUN (rip_neighbor,
|
||
rip_neighbor_cmd,
|
||
"neighbor A.B.C.D",
|
||
"Specify a neighbor router\n"
|
||
"Neighbor address\n")
|
||
{
|
||
int ret;
|
||
struct prefix_ipv4 p;
|
||
|
||
ret = str2prefix_ipv4 (argv[0], &p);
|
||
|
||
if (ret <= 0)
|
||
{
|
||
vty_out (vty, "Please specify address by A.B.C.D%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
rip_neighbor_add (&p);
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
/* RIP neighbor configuration unset. */
|
||
DEFUN (no_rip_neighbor,
|
||
no_rip_neighbor_cmd,
|
||
"no neighbor A.B.C.D",
|
||
NO_STR
|
||
"Specify a neighbor router\n"
|
||
"Neighbor address\n")
|
||
{
|
||
int ret;
|
||
struct prefix_ipv4 p;
|
||
|
||
ret = str2prefix_ipv4 (argv[0], &p);
|
||
|
||
if (ret <= 0)
|
||
{
|
||
vty_out (vty, "Please specify address by A.B.C.D%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
rip_neighbor_delete (&p);
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (ip_rip_receive_version,
|
||
ip_rip_receive_version_cmd,
|
||
"ip rip receive version (1|2)",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement reception\n"
|
||
"Version control\n"
|
||
"RIP version 1\n"
|
||
"RIP version 2\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1. */
|
||
if (atoi (argv[0]) == 1)
|
||
{
|
||
ri->ri_receive = RI_RIP_VERSION_1;
|
||
return CMD_SUCCESS;
|
||
}
|
||
if (atoi (argv[0]) == 2)
|
||
{
|
||
ri->ri_receive = RI_RIP_VERSION_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
DEFUN (ip_rip_receive_version_1,
|
||
ip_rip_receive_version_1_cmd,
|
||
"ip rip receive version 1 2",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement reception\n"
|
||
"Version control\n"
|
||
"RIP version 1\n"
|
||
"RIP version 2\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1 and 2. */
|
||
ri->ri_receive = RI_RIP_VERSION_1_AND_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (ip_rip_receive_version_2,
|
||
ip_rip_receive_version_2_cmd,
|
||
"ip rip receive version 2 1",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement reception\n"
|
||
"Version control\n"
|
||
"RIP version 2\n"
|
||
"RIP version 1\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1 and 2. */
|
||
ri->ri_receive = RI_RIP_VERSION_1_AND_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (no_ip_rip_receive_version,
|
||
no_ip_rip_receive_version_cmd,
|
||
"no ip rip receive version",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement reception\n"
|
||
"Version control\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->ri_receive = RI_RIP_UNSPEC;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (no_ip_rip_receive_version,
|
||
no_ip_rip_receive_version_num_cmd,
|
||
"no ip rip receive version (1|2)",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement reception\n"
|
||
"Version control\n"
|
||
"Version 1\n"
|
||
"Version 2\n")
|
||
|
||
DEFUN (ip_rip_send_version,
|
||
ip_rip_send_version_cmd,
|
||
"ip rip send version (1|2)",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement transmission\n"
|
||
"Version control\n"
|
||
"RIP version 1\n"
|
||
"RIP version 2\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1. */
|
||
if (atoi (argv[0]) == 1)
|
||
{
|
||
ri->ri_send = RI_RIP_VERSION_1;
|
||
return CMD_SUCCESS;
|
||
}
|
||
if (atoi (argv[0]) == 2)
|
||
{
|
||
ri->ri_send = RI_RIP_VERSION_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
DEFUN (ip_rip_send_version_1,
|
||
ip_rip_send_version_1_cmd,
|
||
"ip rip send version 1 2",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement transmission\n"
|
||
"Version control\n"
|
||
"RIP version 1\n"
|
||
"RIP version 2\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1 and 2. */
|
||
ri->ri_send = RI_RIP_VERSION_1_AND_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (ip_rip_send_version_2,
|
||
ip_rip_send_version_2_cmd,
|
||
"ip rip send version 2 1",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement transmission\n"
|
||
"Version control\n"
|
||
"RIP version 2\n"
|
||
"RIP version 1\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
/* Version 1 and 2. */
|
||
ri->ri_send = RI_RIP_VERSION_1_AND_2;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (no_ip_rip_send_version,
|
||
no_ip_rip_send_version_cmd,
|
||
"no ip rip send version",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement transmission\n"
|
||
"Version control\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->ri_send = RI_RIP_UNSPEC;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (no_ip_rip_send_version,
|
||
no_ip_rip_send_version_num_cmd,
|
||
"no ip rip send version (1|2)",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Advertisement transmission\n"
|
||
"Version control\n"
|
||
"Version 1\n"
|
||
"Version 2\n")
|
||
|
||
DEFUN (ip_rip_authentication_mode,
|
||
ip_rip_authentication_mode_cmd,
|
||
"ip rip authentication mode (md5|text)",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication mode\n"
|
||
"Keyed message digest\n"
|
||
"Clear text authentication\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
int auth_type;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
if ( (argc < 1) || (argc > 2) )
|
||
{
|
||
vty_out (vty, "incorrect argument count%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (strncmp ("md5", argv[0], strlen (argv[0])) == 0)
|
||
auth_type = RIP_AUTH_MD5;
|
||
else if (strncmp ("text", argv[0], strlen (argv[0])) == 0)
|
||
auth_type = RIP_AUTH_SIMPLE_PASSWORD;
|
||
else
|
||
{
|
||
vty_out (vty, "mode should be md5 or text%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (argc == 1)
|
||
{
|
||
ri->auth_type = auth_type;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
if ( (argc == 2) && (auth_type != RIP_AUTH_MD5) )
|
||
{
|
||
vty_out (vty, "auth length argument only valid for md5%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (strncmp ("r", argv[1], 1) == 0)
|
||
ri->md5_auth_len = RIP_AUTH_MD5_SIZE;
|
||
else if (strncmp ("o", argv[1], 1) == 0)
|
||
ri->md5_auth_len = RIP_AUTH_MD5_COMPAT_SIZE;
|
||
else
|
||
return CMD_WARNING;
|
||
|
||
ri->auth_type = auth_type;
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (ip_rip_authentication_mode,
|
||
ip_rip_authentication_mode_authlen_cmd,
|
||
"ip rip authentication mode (md5|text) auth-length (rfc|old-ripd)",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication mode\n"
|
||
"Keyed message digest\n"
|
||
"Clear text authentication\n"
|
||
"MD5 authentication data length\n"
|
||
"RFC compatible\n"
|
||
"Old ripd compatible\n")
|
||
|
||
DEFUN (no_ip_rip_authentication_mode,
|
||
no_ip_rip_authentication_mode_cmd,
|
||
"no ip rip authentication mode",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication mode\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->auth_type = RIP_NO_AUTH;
|
||
ri->md5_auth_len = RIP_AUTH_MD5_COMPAT_SIZE;
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (no_ip_rip_authentication_mode,
|
||
no_ip_rip_authentication_mode_type_cmd,
|
||
"no ip rip authentication mode (md5|text)",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication mode\n"
|
||
"Keyed message digest\n"
|
||
"Clear text authentication\n")
|
||
|
||
ALIAS (no_ip_rip_authentication_mode,
|
||
no_ip_rip_authentication_mode_type_authlen_cmd,
|
||
"no ip rip authentication mode (md5|text) auth-length (rfc|old-ripd)",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication mode\n"
|
||
"Keyed message digest\n"
|
||
"Clear text authentication\n"
|
||
"MD5 authentication data length\n"
|
||
"RFC compatible\n"
|
||
"Old ripd compatible\n")
|
||
|
||
DEFUN (ip_rip_authentication_string,
|
||
ip_rip_authentication_string_cmd,
|
||
"ip rip authentication string LINE",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication string\n"
|
||
"Authentication string\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
if (strlen (argv[0]) > 16)
|
||
{
|
||
vty_out (vty, "%% RIPv2 authentication string must be shorter than 16%s",
|
||
VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (ri->key_chain)
|
||
{
|
||
vty_out (vty, "%% key-chain configuration exists%s", VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (ri->auth_str)
|
||
free (ri->auth_str);
|
||
|
||
ri->auth_str = strdup (argv[0]);
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (no_ip_rip_authentication_string,
|
||
no_ip_rip_authentication_string_cmd,
|
||
"no ip rip authentication string",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication string\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *)vty->index;
|
||
ri = ifp->info;
|
||
|
||
if (ri->auth_str)
|
||
free (ri->auth_str);
|
||
|
||
ri->auth_str = NULL;
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (no_ip_rip_authentication_string,
|
||
no_ip_rip_authentication_string2_cmd,
|
||
"no ip rip authentication string LINE",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication string\n"
|
||
"Authentication string\n")
|
||
|
||
DEFUN (ip_rip_authentication_key_chain,
|
||
ip_rip_authentication_key_chain_cmd,
|
||
"ip rip authentication key-chain LINE",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication key-chain\n"
|
||
"name of key-chain\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *) vty->index;
|
||
ri = ifp->info;
|
||
|
||
if (ri->auth_str)
|
||
{
|
||
vty_out (vty, "%% authentication string configuration exists%s",
|
||
VTY_NEWLINE);
|
||
return CMD_WARNING;
|
||
}
|
||
|
||
if (ri->key_chain)
|
||
free (ri->key_chain);
|
||
|
||
ri->key_chain = strdup (argv[0]);
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (no_ip_rip_authentication_key_chain,
|
||
no_ip_rip_authentication_key_chain_cmd,
|
||
"no ip rip authentication key-chain",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication key-chain\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = (struct interface *) vty->index;
|
||
ri = ifp->info;
|
||
|
||
if (ri->key_chain)
|
||
free (ri->key_chain);
|
||
|
||
ri->key_chain = NULL;
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
ALIAS (no_ip_rip_authentication_key_chain,
|
||
no_ip_rip_authentication_key_chain2_cmd,
|
||
"no ip rip authentication key-chain LINE",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Authentication control\n"
|
||
"Authentication key-chain\n"
|
||
"name of key-chain\n")
|
||
|
||
/* CHANGED: ip rip split-horizon
|
||
Cisco and Zebra's command is
|
||
ip split-horizon
|
||
*/
|
||
DEFUN (ip_rip_split_horizon,
|
||
ip_rip_split_horizon_cmd,
|
||
"ip rip split-horizon",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Perform split horizon\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->split_horizon = RIP_SPLIT_HORIZON;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (ip_rip_split_horizon_poisoned_reverse,
|
||
ip_rip_split_horizon_poisoned_reverse_cmd,
|
||
"ip rip split-horizon poisoned-reverse",
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Perform split horizon\n"
|
||
"With poisoned-reverse\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->split_horizon = RIP_SPLIT_HORIZON_POISONED_REVERSE;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
/* CHANGED: no ip rip split-horizon
|
||
Cisco and Zebra's command is
|
||
no ip split-horizon
|
||
*/
|
||
DEFUN (no_ip_rip_split_horizon,
|
||
no_ip_rip_split_horizon_cmd,
|
||
"no ip rip split-horizon",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Perform split horizon\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = vty->index;
|
||
ri = ifp->info;
|
||
|
||
ri->split_horizon = RIP_NO_SPLIT_HORIZON;
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (no_ip_rip_split_horizon_poisoned_reverse,
|
||
no_ip_rip_split_horizon_poisoned_reverse_cmd,
|
||
"no ip rip split-horizon poisoned-reverse",
|
||
NO_STR
|
||
IP_STR
|
||
"Routing Information Protocol\n"
|
||
"Perform split horizon\n"
|
||
"With poisoned-reverse\n")
|
||
{
|
||
struct interface *ifp;
|
||
struct rip_interface *ri;
|
||
|
||
ifp = vty->index;
|
||
ri = ifp->info;
|
||
|
||
switch( ri->split_horizon )
|
||
{
|
||
case RIP_SPLIT_HORIZON_POISONED_REVERSE:
|
||
ri->split_horizon = RIP_SPLIT_HORIZON;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return CMD_SUCCESS;
|
||
}
|
||
|
||
DEFUN (rip_passive_interface,
|
||
rip_passive_interface_cmd,
|
||
"passive-interface (IFNAME|default)",
|
||
"Suppress routing updates on an interface\n"
|
||
"Interface name\n"
|
||
"default for all interfaces\n")
|
||
{
|
||
const char *ifname = argv[0];
|
||
|
||
if (!strcmp(ifname,"default")) {
|
||
passive_default = 1;
|
||
rip_passive_nondefault_clean();
|
||
return CMD_SUCCESS;
|
||
}
|
||
if (passive_default)
|
||
return rip_passive_nondefault_unset (vty, ifname);
|
||
else
|
||
return rip_passive_nondefault_set (vty, ifname);
|
||
}
|
||
|
||
DEFUN (no_rip_passive_interface,
|
||
no_rip_passive_interface_cmd,
|
||
"no passive-interface (IFNAME|default)",
|
||
NO_STR
|
||
"Suppress routing updates on an interface\n"
|
||
"Interface name\n"
|
||
"default for all interfaces\n")
|
||
{
|
||
const char *ifname = argv[0];
|
||
|
||
if (!strcmp(ifname,"default")) {
|
||
passive_default = 0;
|
||
rip_passive_nondefault_clean();
|
||
return CMD_SUCCESS;
|
||
}
|
||
if (passive_default)
|
||
return rip_passive_nondefault_set (vty, ifname);
|
||
else
|
||
return rip_passive_nondefault_unset (vty, ifname);
|
||
}
|
||
|
||
/* Write rip configuration of each interface. */
|
||
static int
|
||
rip_interface_config_write (struct vty *vty)
|
||
{
|
||
struct listnode *node;
|
||
struct interface *ifp;
|
||
|
||
for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
|
||
{
|
||
struct rip_interface *ri;
|
||
|
||
ri = ifp->info;
|
||
|
||
/* Do not display the interface if there is no
|
||
* configuration about it.
|
||
**/
|
||
if ((!ifp->desc) &&
|
||
(ri->split_horizon == ri->split_horizon_default) &&
|
||
(ri->ri_send == RI_RIP_UNSPEC) &&
|
||
(ri->ri_receive == RI_RIP_UNSPEC) &&
|
||
(ri->auth_type != RIP_AUTH_MD5) &&
|
||
(ri->md5_auth_len != RIP_AUTH_MD5_SIZE) &&
|
||
(!ri->auth_str) &&
|
||
(!ri->key_chain) )
|
||
continue;
|
||
|
||
vty_out (vty, "interface %s%s", ifp->name,
|
||
VTY_NEWLINE);
|
||
|
||
if (ifp->desc)
|
||
vty_out (vty, " description %s%s", ifp->desc,
|
||
VTY_NEWLINE);
|
||
|
||
/* Split horizon. */
|
||
if (ri->split_horizon != ri->split_horizon_default)
|
||
{
|
||
switch (ri->split_horizon) {
|
||
case RIP_SPLIT_HORIZON:
|
||
vty_out (vty, " ip rip split-horizon%s", VTY_NEWLINE);
|
||
break;
|
||
case RIP_SPLIT_HORIZON_POISONED_REVERSE:
|
||
vty_out (vty, " ip rip split-horizon poisoned-reverse%s",
|
||
VTY_NEWLINE);
|
||
break;
|
||
case RIP_NO_SPLIT_HORIZON:
|
||
default:
|
||
vty_out (vty, " no ip rip split-horizon%s", VTY_NEWLINE);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* RIP version setting. */
|
||
if (ri->ri_send != RI_RIP_UNSPEC)
|
||
vty_out (vty, " ip rip send version %s%s",
|
||
lookup (ri_version_msg, ri->ri_send),
|
||
VTY_NEWLINE);
|
||
|
||
if (ri->ri_receive != RI_RIP_UNSPEC)
|
||
vty_out (vty, " ip rip receive version %s%s",
|
||
lookup (ri_version_msg, ri->ri_receive),
|
||
VTY_NEWLINE);
|
||
|
||
/* RIP authentication. */
|
||
if (ri->auth_type == RIP_AUTH_SIMPLE_PASSWORD)
|
||
vty_out (vty, " ip rip authentication mode text%s", VTY_NEWLINE);
|
||
|
||
if (ri->auth_type == RIP_AUTH_MD5)
|
||
{
|
||
vty_out (vty, " ip rip authentication mode md5");
|
||
if (ri->md5_auth_len == RIP_AUTH_MD5_COMPAT_SIZE)
|
||
vty_out (vty, " auth-length old-ripd");
|
||
else
|
||
vty_out (vty, " auth-length rfc");
|
||
vty_out (vty, "%s", VTY_NEWLINE);
|
||
}
|
||
|
||
if (ri->auth_str)
|
||
vty_out (vty, " ip rip authentication string %s%s",
|
||
ri->auth_str, VTY_NEWLINE);
|
||
|
||
if (ri->key_chain)
|
||
vty_out (vty, " ip rip authentication key-chain %s%s",
|
||
ri->key_chain, VTY_NEWLINE);
|
||
|
||
vty_out (vty, "!%s", VTY_NEWLINE);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
config_write_rip_network (struct vty *vty, int config_mode)
|
||
{
|
||
unsigned int i;
|
||
char *ifname;
|
||
struct route_node *node;
|
||
|
||
/* Network type RIP enable interface statement. */
|
||
for (node = route_top (rip_enable_network); node; node = route_next (node))
|
||
if (node->info)
|
||
vty_out (vty, "%s%s/%d%s",
|
||
config_mode ? " network " : " ",
|
||
inet_ntoa (node->p.u.prefix4),
|
||
node->p.prefixlen,
|
||
VTY_NEWLINE);
|
||
|
||
/* Interface name RIP enable statement. */
|
||
for (i = 0; i < vector_active (rip_enable_interface); i++)
|
||
if ((ifname = vector_slot (rip_enable_interface, i)) != NULL)
|
||
vty_out (vty, "%s%s%s",
|
||
config_mode ? " network " : " ",
|
||
ifname,
|
||
VTY_NEWLINE);
|
||
|
||
/* RIP neighbors listing. */
|
||
for (node = route_top (rip->neighbor); node; node = route_next (node))
|
||
if (node->info)
|
||
vty_out (vty, "%s%s%s",
|
||
config_mode ? " neighbor " : " ",
|
||
inet_ntoa (node->p.u.prefix4),
|
||
VTY_NEWLINE);
|
||
|
||
/* RIP passive interface listing. */
|
||
if (config_mode) {
|
||
if (passive_default)
|
||
vty_out (vty, " passive-interface default%s", VTY_NEWLINE);
|
||
for (i = 0; i < vector_active (Vrip_passive_nondefault); i++)
|
||
if ((ifname = vector_slot (Vrip_passive_nondefault, i)) != NULL)
|
||
vty_out (vty, " %spassive-interface %s%s",
|
||
(passive_default ? "no " : ""), ifname, VTY_NEWLINE);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
struct cmd_node interface_node =
|
||
{
|
||
INTERFACE_NODE,
|
||
"%s(config-if)# ",
|
||
1,
|
||
};
|
||
|
||
/* Called when interface structure allocated. */
|
||
static int
|
||
rip_interface_new_hook (struct interface *ifp)
|
||
{
|
||
ifp->info = rip_interface_new ();
|
||
return 0;
|
||
}
|
||
|
||
/* Called when interface structure deleted. */
|
||
static int
|
||
rip_interface_delete_hook (struct interface *ifp)
|
||
{
|
||
XFREE (MTYPE_RIP_INTERFACE, ifp->info);
|
||
ifp->info = NULL;
|
||
return 0;
|
||
}
|
||
|
||
/* Allocate and initialize interface vector. */
|
||
void
|
||
rip_if_init (void)
|
||
{
|
||
/* Default initial size of interface vector. */
|
||
if_init();
|
||
if_add_hook (IF_NEW_HOOK, rip_interface_new_hook);
|
||
if_add_hook (IF_DELETE_HOOK, rip_interface_delete_hook);
|
||
|
||
/* RIP network init. */
|
||
rip_enable_interface = vector_init (1);
|
||
rip_enable_network = route_table_init ();
|
||
|
||
/* RIP passive interface. */
|
||
Vrip_passive_nondefault = vector_init (1);
|
||
|
||
/* Install interface node. */
|
||
install_node (&interface_node, rip_interface_config_write);
|
||
|
||
/* Install commands. */
|
||
install_element (CONFIG_NODE, &interface_cmd);
|
||
install_element (CONFIG_NODE, &no_interface_cmd);
|
||
install_default (INTERFACE_NODE);
|
||
install_element (INTERFACE_NODE, &interface_desc_cmd);
|
||
install_element (INTERFACE_NODE, &no_interface_desc_cmd);
|
||
install_element (RIP_NODE, &rip_network_cmd);
|
||
install_element (RIP_NODE, &no_rip_network_cmd);
|
||
install_element (RIP_NODE, &rip_neighbor_cmd);
|
||
install_element (RIP_NODE, &no_rip_neighbor_cmd);
|
||
|
||
install_element (RIP_NODE, &rip_passive_interface_cmd);
|
||
install_element (RIP_NODE, &no_rip_passive_interface_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_send_version_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_send_version_1_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_send_version_2_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_send_version_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_send_version_num_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_receive_version_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_receive_version_1_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_receive_version_2_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_receive_version_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_receive_version_num_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_authentication_mode_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_authentication_mode_authlen_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_mode_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_mode_type_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_mode_type_authlen_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_authentication_key_chain_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_key_chain_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_key_chain2_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_authentication_string_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_string_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_authentication_string2_cmd);
|
||
|
||
install_element (INTERFACE_NODE, &ip_rip_split_horizon_cmd);
|
||
install_element (INTERFACE_NODE, &ip_rip_split_horizon_poisoned_reverse_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_split_horizon_cmd);
|
||
install_element (INTERFACE_NODE, &no_ip_rip_split_horizon_poisoned_reverse_cmd);
|
||
}
|