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- /* Interface related function for RIP.
- * Copyright (C) 1997, 98 Kunihiro Ishiguro <kunihiro@zebra.org>
- *
- * 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 "command.h"
- #include "if.h"
- #include "sockunion.h"
- #include "prefix.h"
- #include "memory.h"
- #include "network.h"
- #include "table.h"
- #include "log.h"
- #include "stream.h"
- #include "thread.h"
- #include "zclient.h"
- #include "filter.h"
- #include "sockopt.h"
- #include "privs.h"
- #include "zebra/connected.h"
- #include "ripd/ripd.h"
- #include "ripd/rip_debug.h"
- #include "ripd/rip_interface.h"
- /* static prototypes */
- static void rip_enable_apply (struct interface *);
- static void rip_passive_interface_apply (struct interface *);
- static int rip_if_down(struct interface *ifp);
- static int rip_enable_if_lookup (const char *ifname);
- static int rip_enable_network_lookup2 (struct connected *connected);
- static void rip_enable_apply_all (void);
- const struct message ri_version_msg[] =
- {
- {RI_RIP_VERSION_1, "1"},
- {RI_RIP_VERSION_2, "2"},
- {RI_RIP_VERSION_1_AND_2, "1 2"},
- };
- extern struct zebra_privs_t ripd_privs;
- /* RIP enabled network vector. */
- vector rip_enable_interface;
- /* RIP enabled interface table. */
- struct route_table *rip_enable_network;
- /* Vector to store passive-interface name. */
- static int passive_default; /* are we in passive-interface default mode? */
- vector Vrip_passive_nondefault;
- /* Join to the RIP version 2 multicast group. */
- static int
- ipv4_multicast_join (int sock,
- struct in_addr group,
- struct in_addr ifa,
- ifindex_t ifindex)
- {
- int ret;
- ret = setsockopt_ipv4_multicast (sock,
- IP_ADD_MEMBERSHIP,
- group.s_addr,
- ifindex);
- if (ret < 0)
- zlog (NULL, LOG_INFO, "can't setsockopt IP_ADD_MEMBERSHIP %s",
- safe_strerror (errno));
- return ret;
- }
- /* Leave from the RIP version 2 multicast group. */
- static int
- ipv4_multicast_leave (int sock,
- struct in_addr group,
- struct in_addr ifa,
- ifindex_t ifindex)
- {
- int ret;
- ret = setsockopt_ipv4_multicast (sock,
- IP_DROP_MEMBERSHIP,
- group.s_addr,
- ifindex);
- if (ret < 0)
- zlog (NULL, LOG_INFO, "can't setsockopt IP_DROP_MEMBERSHIP");
- return ret;
- }
- static void rip_interface_reset (struct rip_interface *);
- /* Allocate new RIP's interface configuration. */
- static struct rip_interface *
- rip_interface_new (void)
- {
- struct rip_interface *ri;
- ri = XCALLOC (MTYPE_RIP_INTERFACE, sizeof (struct rip_interface));
-
- rip_interface_reset (ri);
-
- return ri;
- }
- void
- rip_interface_multicast_set (int sock, struct connected *connected)
- {
- assert (connected != NULL);
-
- if (setsockopt_ipv4_multicast_if (sock, connected->ifp->ifindex) < 0)
- {
- zlog_warn ("Can't setsockopt IP_MULTICAST_IF on fd %d to "
- "ifindex %d for interface %s",
- sock, connected->ifp->ifindex,
- connected->ifp->name);
- }
-
- return;
- }
- /* Send RIP request packet to specified interface. */
- static void
- rip_request_interface_send (struct interface *ifp, u_char version)
- {
- struct sockaddr_in to;
- /* RIPv2 support multicast. */
- if (version == RIPv2 && if_is_multicast (ifp))
- {
-
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("multicast request on %s", ifp->name);
- rip_request_send (NULL, ifp, version, NULL);
- return;
- }
- /* RIPv1 and non multicast interface. */
- if (if_is_pointopoint (ifp) || if_is_broadcast (ifp))
- {
- struct listnode *cnode, *cnnode;
- struct connected *connected;
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("broadcast request to %s", ifp->name);
- for (ALL_LIST_ELEMENTS (ifp->connected, cnode, cnnode, connected))
- {
- if (connected->address->family == AF_INET)
- {
- memset (&to, 0, sizeof (struct sockaddr_in));
- to.sin_port = htons (RIP_PORT_DEFAULT);
- if (connected->destination)
- /* use specified broadcast or peer destination addr */
- to.sin_addr = connected->destination->u.prefix4;
- else if (connected->address->prefixlen < IPV4_MAX_PREFIXLEN)
- /* calculate the appropriate broadcast address */
- to.sin_addr.s_addr =
- ipv4_broadcast_addr(connected->address->u.prefix4.s_addr,
- connected->address->prefixlen);
- else
- /* do not know where to send the packet */
- continue;
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("SEND request to %s", inet_ntoa (to.sin_addr));
-
- rip_request_send (&to, ifp, version, connected);
- }
- }
- }
- }
- /* This will be executed when interface goes up. */
- static void
- rip_request_interface (struct interface *ifp)
- {
- struct rip_interface *ri;
- /* In default ripd doesn't send RIP_REQUEST to the loopback interface. */
- if (if_is_loopback (ifp))
- return;
- /* If interface is down, don't send RIP packet. */
- if (! if_is_operative (ifp))
- return;
- /* Fetch RIP interface information. */
- ri = ifp->info;
- /* If there is no version configuration in the interface,
- use rip's version setting. */
- {
- int vsend = ((ri->ri_send == RI_RIP_UNSPEC) ?
- rip->version_send : ri->ri_send);
- if (vsend & RIPv1)
- rip_request_interface_send (ifp, RIPv1);
- if (vsend & RIPv2)
- rip_request_interface_send (ifp, RIPv2);
- }
- }
- #if 0
- /* Send RIP request to the neighbor. */
- static void
- rip_request_neighbor (struct in_addr addr)
- {
- struct sockaddr_in to;
- memset (&to, 0, sizeof (struct sockaddr_in));
- to.sin_port = htons (RIP_PORT_DEFAULT);
- to.sin_addr = addr;
- rip_request_send (&to, NULL, rip->version_send, NULL);
- }
- /* Request routes at all interfaces. */
- static void
- rip_request_neighbor_all (void)
- {
- struct route_node *rp;
- if (! rip)
- return;
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("request to the all neighbor");
- /* Send request to all neighbor. */
- for (rp = route_top (rip->neighbor); rp; rp = route_next (rp))
- if (rp->info)
- rip_request_neighbor (rp->p.u.prefix4);
- }
- #endif
- /* Multicast packet receive socket. */
- static int
- rip_multicast_join (struct interface *ifp, int sock)
- {
- struct listnode *cnode;
- struct connected *ifc;
- if (if_is_operative (ifp) && if_is_multicast (ifp))
- {
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("multicast join at %s", ifp->name);
- for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, ifc))
- {
- struct prefix_ipv4 *p;
- struct in_addr group;
-
- p = (struct prefix_ipv4 *) ifc->address;
-
- if (p->family != AF_INET)
- continue;
-
- group.s_addr = htonl (INADDR_RIP_GROUP);
- if (ipv4_multicast_join (sock, group, p->prefix, ifp->ifindex) < 0)
- return -1;
- else
- return 0;
- }
- }
- return 0;
- }
- /* Leave from multicast group. */
- static void
- rip_multicast_leave (struct interface *ifp, int sock)
- {
- struct listnode *cnode;
- struct connected *connected;
- if (if_is_up (ifp) && if_is_multicast (ifp))
- {
- if (IS_RIP_DEBUG_EVENT)
- zlog_debug ("multicast leave from %s", ifp->name);
- for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected))
- {
- struct prefix_ipv4 *p;
- struct in_addr group;
-
- p = (struct prefix_ipv4 *) connected->address;
-
- if (p->family != AF_INET)
- continue;
-
- group.s_addr = htonl (INADDR_RIP_GROUP);
- if (ipv4_multicast_leave (sock, group, p->prefix, ifp->ifindex) == 0)
- return;
- }
- }
- }
- /* Is there and address on interface that I could use ? */
- static int
- rip_if_ipv4_address_check (struct interface *ifp)
- {
- struct listnode *nn;
- struct connected *connected;
- int count = 0;
- for (ALL_LIST_ELEMENTS_RO (ifp->connected, nn, connected))
- {
- struct prefix *p;
- p = connected->address;
- if (p->family == AF_INET)
- count++;
- }
-
- return count;
- }
-
-
-
- /* Does this address belongs to me ? */
- int
- if_check_address (struct in_addr addr)
- {
- struct listnode *node;
- struct interface *ifp;
-
- for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
- {
- struct listnode *cnode;
- struct connected *connected;
- for (ALL_LIST_ELEMENTS_RO (ifp->connected, cnode, connected))
- {
- struct prefix_ipv4 *p;
- p = (struct prefix_ipv4 *) connected->address;
- if (p->family != AF_INET)
- continue;
- if (IPV4_ADDR_CMP (&p->prefix, &addr) == 0)
- return 1;
- }
- }
- return 0;
- }
- /* Inteface link down message processing. */
- int
- rip_interface_down (int command, struct zclient *zclient, zebra_size_t length,
- vrf_id_t vrf_id)
- {
- struct interface *ifp;
- struct stream *s;
- s = zclient->ibuf;
- /* zebra_interface_state_read() updates interface structure in
- iflist. */
- ifp = zebra_interface_state_read (s, vrf_id);
- if (ifp == NULL)
- return 0;
- rip_if_down(ifp);
-
- if (IS_RIP_DEBUG_ZEBRA)
- zlog_debug ("interface %s index %d flags %llx metric %d mtu %d is down",
- ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
- ifp->metric, ifp->mtu);
- return 0;
- }
- /* Inteface link up message processing */
- int
- rip_interface_up (int command, struct zclient *zclient, zebra_size_t length,
- vrf_id_t vrf_id)
- {
- struct interface *ifp;
- /* zebra_interface_state_read () updates interface structure in
- iflist. */
- ifp = zebra_interface_state_read (zclient->ibuf, vrf_id);
- if (ifp == NULL)
- return 0;
- if (IS_RIP_DEBUG_ZEBRA)
- zlog_debug ("interface %s index %d flags %#llx metric %d mtu %d is up",
- ifp->name, ifp->ifindex, (unsigned long long) 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);
- return 0;
- }
- /* Inteface addition message from zebra. */
- int
- rip_interface_add (int command, struct zclient *zclient, zebra_size_t length,
- vrf_id_t vrf_id)
- {
- struct interface *ifp;
- ifp = zebra_interface_add_read (zclient->ibuf, vrf_id);
- if (IS_RIP_DEBUG_ZEBRA)
- zlog_debug ("interface add %s index %d flags %#llx metric %d mtu %d",
- ifp->name, ifp->ifindex, (unsigned long long) 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, vrf_id_t vrf_id)
- {
- struct interface *ifp;
- struct stream *s;
- s = zclient->ibuf;
- /* zebra_interface_state_read() updates interface structure in iflist */
- ifp = zebra_interface_state_read (s, vrf_id);
- if (ifp == NULL)
- return 0;
- if (if_is_up (ifp)) {
- rip_if_down(ifp);
- }
-
- zlog_info("interface delete %s index %d flags %#llx metric %d mtu %d",
- ifp->name, ifp->ifindex, (unsigned long long) ifp->flags,
- ifp->metric, ifp->mtu);
-
- /* To support pseudo interface do not free interface structure. */
- /* if_delete(ifp); */
- ifp->ifindex = IFINDEX_INTERNAL;
- return 0;
- }
- static void
- rip_interface_clean (struct rip_interface *ri)
- {
- 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_interfaces_clean (void)
- {
- struct listnode *node;
- struct interface *ifp;
- for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
- rip_interface_clean (ifp->info);
- }
- static void
- rip_interface_reset (struct rip_interface *ri)
- {
- /* Default authentication type is simple password for Cisco
- compatibility. */
- ri->auth_type = RIP_NO_AUTH;
- ri->md5_auth_len = RIP_AUTH_MD5_COMPAT_SIZE;
- /* Set default split-horizon behavior. If the interface is Frame
- Relay or SMDS is enabled, the default value for split-horizon is
- off. But currently Zebra does detect Frame Relay or SMDS
- interface. So all interface is set to split horizon. */
- ri->split_horizon_default = RIP_SPLIT_HORIZON;
- ri->split_horizon = ri->split_horizon_default;
- ri->ri_send = RI_RIP_UNSPEC;
- ri->ri_receive = RI_RIP_UNSPEC;
-
- 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->list[RIP_FILTER_IN] = NULL;
- ri->list[RIP_FILTER_OUT] = NULL;
- ri->prefix[RIP_FILTER_IN] = NULL;
- ri->prefix[RIP_FILTER_OUT] = NULL;
-
- ri->recv_badpackets = 0;
- ri->recv_badroutes = 0;
- ri->sent_updates = 0;
- ri->passive = 0;
-
- rip_interface_clean (ri);
- }
- void
- rip_interfaces_reset (void)
- {
- struct listnode *node;
- struct interface *ifp;
- for (ALL_LIST_ELEMENTS_RO (iflist, node, ifp))
- rip_interface_reset (ifp->info);
- }
- int
- rip_if_down(struct interface *ifp)
- {
- struct route_node *rp;
- struct rip_info *rinfo;
- struct rip_interface *ri = NULL;
- struct list *list = NULL;
- struct listnode *listnode = NULL, *nextnode = NULL;
- if (rip)
- for (rp = route_top (rip->table); rp; rp = route_next (rp))
- if ((list = rp->info) != NULL)
- for (ALL_LIST_ELEMENTS (list, listnode, nextnode, rinfo))
- if (rinfo->ifindex == ifp->ifindex)
- rip_ecmp_delete (rinfo);
- 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, 0);
- }
- int
- rip_interface_address_add (int command, struct zclient *zclient,
- zebra_size_t length, vrf_id_t vrf_id)
- {
- struct connected *ifc;
- struct prefix *p;
- ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
- zclient->ibuf, vrf_id);
- 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, vrf_id_t vrf_id)
- {
- struct connected *ifc;
- struct prefix *p;
- ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE,
- zclient->ibuf, vrf_id);
-
- 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;
- }
- 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, 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, 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;
- }
- static 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_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);
- }
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