[mirror_frr.git] / eigrpd / eigrp_zebra.c

/*
 * Zebra connect library for EIGRP.
 * Copyright (C) 2013-2014
 * Authors:
 *   Donnie Savage
 *   Jan Janovic
 *   Matej Perina
 *   Peter Orsag
 *   Peter Paluch
 *
 * 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 this program; see the file COPYING; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <zebra.h>

#include "thread.h"
#include "command.h"
#include "network.h"
#include "prefix.h"
#include "routemap.h"
#include "table.h"
#include "stream.h"
#include "memory.h"
#include "zclient.h"
#include "filter.h"
#include "plist.h"
#include "log.h"
#include "nexthop.h"

#include "eigrpd/eigrp_structs.h"
#include "eigrpd/eigrpd.h"
#include "eigrpd/eigrp_interface.h"
#include "eigrpd/eigrp_neighbor.h"
#include "eigrpd/eigrp_packet.h"
#include "eigrpd/eigrp_zebra.h"
#include "eigrpd/eigrp_vty.h"
#include "eigrpd/eigrp_dump.h"
#include "eigrpd/eigrp_network.h"
#include "eigrpd/eigrp_topology.h"
#include "eigrpd/eigrp_fsm.h"

static int eigrp_interface_add(ZAPI_CALLBACK_ARGS);
static int eigrp_interface_delete(ZAPI_CALLBACK_ARGS);
static int eigrp_interface_address_add(ZAPI_CALLBACK_ARGS);
static int eigrp_interface_address_delete(ZAPI_CALLBACK_ARGS);
static int eigrp_interface_state_up(ZAPI_CALLBACK_ARGS);
static int eigrp_interface_state_down(ZAPI_CALLBACK_ARGS);
static struct interface *zebra_interface_if_lookup(struct stream *);

static int eigrp_zebra_read_route(ZAPI_CALLBACK_ARGS);

/* Zebra structure to hold current status. */
struct zclient *zclient = NULL;

/* For registering threads. */
extern struct thread_master *master;
struct in_addr router_id_zebra;

/* Router-id update message from zebra. */
static int eigrp_router_id_update_zebra(ZAPI_CALLBACK_ARGS)
{
	struct eigrp *eigrp;
	struct prefix router_id;
	zebra_router_id_update_read(zclient->ibuf, &router_id);

	router_id_zebra = router_id.u.prefix4;

	eigrp = eigrp_lookup();

	if (eigrp != NULL)
		eigrp_router_id_update(eigrp);

	return 0;
}

static int eigrp_zebra_route_notify_owner(ZAPI_CALLBACK_ARGS)
{
	struct prefix p;
	enum zapi_route_notify_owner note;
	uint32_t table;

	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
		return -1;

	return 0;
}

static void eigrp_zebra_connected(struct zclient *zclient)
{
	zclient_send_reg_requests(zclient, VRF_DEFAULT);
}

void eigrp_zebra_init(void)
{
	struct zclient_options opt = {.receive_notify = false};

	zclient = zclient_new(master, &opt);

	zclient_init(zclient, ZEBRA_ROUTE_EIGRP, 0, &eigrpd_privs);
	zclient->zebra_connected = eigrp_zebra_connected;
	zclient->router_id_update = eigrp_router_id_update_zebra;
	zclient->interface_add = eigrp_interface_add;
	zclient->interface_delete = eigrp_interface_delete;
	zclient->interface_up = eigrp_interface_state_up;
	zclient->interface_down = eigrp_interface_state_down;
	zclient->interface_address_add = eigrp_interface_address_add;
	zclient->interface_address_delete = eigrp_interface_address_delete;
	zclient->redistribute_route_add = eigrp_zebra_read_route;
	zclient->redistribute_route_del = eigrp_zebra_read_route;
	zclient->route_notify_owner = eigrp_zebra_route_notify_owner;
}


/* Zebra route add and delete treatment. */
static int eigrp_zebra_read_route(ZAPI_CALLBACK_ARGS)
{
	struct zapi_route api;
	struct eigrp *eigrp;

	if (zapi_route_decode(zclient->ibuf, &api) < 0)
		return -1;

	if (IPV4_NET127(ntohl(api.prefix.u.prefix4.s_addr)))
		return 0;

	eigrp = eigrp_lookup();
	if (eigrp == NULL)
		return 0;

	if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {

	} else /* if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */
	{
	}

	return 0;
}

/* Inteface addition message from zebra. */
static int eigrp_interface_add(ZAPI_CALLBACK_ARGS)
{
	struct interface *ifp;
	struct eigrp_interface *ei;

	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);

	if (!ifp->info)
		return 0;

	ei = ifp->info;

	ei->params.type = eigrp_default_iftype(ifp);

	eigrp_if_update(ifp);

	return 0;
}

static int eigrp_interface_delete(ZAPI_CALLBACK_ARGS)
{
	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))
		zlog_warn("Zebra: got delete of %s, but interface is still up",
			  ifp->name);

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug(
			"Zebra: interface delete %s index %d flags %llx metric %d mtu %d",
			ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
			ifp->metric, ifp->mtu);

	if (ifp->info)
		eigrp_if_free(ifp->info, INTERFACE_DOWN_BY_ZEBRA);

	if_set_index(ifp, IFINDEX_INTERNAL);
	return 0;
}

static int eigrp_interface_address_add(ZAPI_CALLBACK_ARGS)
{
	struct connected *c;

	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);

	if (c == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
		char buf[128];
		prefix2str(c->address, buf, sizeof(buf));
		zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
			   buf);
	}

	eigrp_if_update(c->ifp);

	return 0;
}

static int eigrp_interface_address_delete(ZAPI_CALLBACK_ARGS)
{
	struct connected *c;
	struct interface *ifp;
	struct eigrp_interface *ei;

	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);

	if (c == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
		char buf[128];
		prefix2str(c->address, buf, sizeof(buf));
		zlog_debug("Zebra: interface %s address delete %s",
			   c->ifp->name, buf);
	}

	ifp = c->ifp;
	ei = ifp->info;
	if (!ei)
		return 0;

	/* Call interface hook functions to clean up */
	if (prefix_cmp(&ei->address, c->address) == 0)
		eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);

	connected_free(c);

	return 0;
}

static int eigrp_interface_state_up(ZAPI_CALLBACK_ARGS)
{
	struct interface *ifp;

	ifp = zebra_interface_if_lookup(zclient->ibuf);

	if (ifp == NULL)
		return 0;

	/* Interface is already up. */
	if (if_is_operative(ifp)) {
		/* Temporarily keep ifp values. */
		struct interface if_tmp;
		memcpy(&if_tmp, ifp, sizeof(struct interface));

		zebra_interface_if_set_value(zclient->ibuf, ifp);

		if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
			zlog_debug("Zebra: Interface[%s] state update.",
				   ifp->name);

		if (if_tmp.bandwidth != ifp->bandwidth) {
			if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
				zlog_debug(
					"Zebra: Interface[%s] bandwidth change %d -> %d.",
					ifp->name, if_tmp.bandwidth,
					ifp->bandwidth);

			//          eigrp_if_recalculate_output_cost (ifp);
		}

		if (if_tmp.mtu != ifp->mtu) {
			if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
				zlog_debug(
					"Zebra: Interface[%s] MTU change %u -> %u.",
					ifp->name, if_tmp.mtu, ifp->mtu);

			/* Must reset the interface (simulate down/up) when MTU
			 * changes. */
			eigrp_if_reset(ifp);
		}
		return 0;
	}

	zebra_interface_if_set_value(zclient->ibuf, ifp);

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug("Zebra: Interface[%s] state change to up.",
			   ifp->name);

	if (ifp->info)
		eigrp_if_up(ifp->info);

	return 0;
}

static int eigrp_interface_state_down(ZAPI_CALLBACK_ARGS)
{
	struct interface *ifp;

	ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);

	if (ifp == NULL)
		return 0;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
		zlog_debug("Zebra: Interface[%s] state change to down.",
			   ifp->name);

	if (ifp->info)
		eigrp_if_down(ifp->info);

	return 0;
}

static struct interface *zebra_interface_if_lookup(struct stream *s)
{
	char ifname_tmp[INTERFACE_NAMSIZ];

	/* Read interface name. */
	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);

	/* And look it up. */
	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
}

void eigrp_zebra_route_add(struct prefix *p, struct list *successors,
			   uint32_t distance)
{
	struct zapi_route api;
	struct zapi_nexthop *api_nh;
	struct eigrp_nexthop_entry *te;
	struct listnode *node;
	int count = 0;

	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
		return;

	memset(&api, 0, sizeof(api));
	api.vrf_id = VRF_DEFAULT;
	api.type = ZEBRA_ROUTE_EIGRP;
	api.safi = SAFI_UNICAST;
	api.metric = distance;
	memcpy(&api.prefix, p, sizeof(*p));

	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
	SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);

	/* Nexthop, ifindex, distance and metric information. */
	for (ALL_LIST_ELEMENTS_RO(successors, node, te)) {
		if (count >= MULTIPATH_NUM)
			break;
		api_nh = &api.nexthops[count];
		api_nh->vrf_id = VRF_DEFAULT;
		if (te->adv_router->src.s_addr) {
			api_nh->gate.ipv4 = te->adv_router->src;
			api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
		} else
			api_nh->type = NEXTHOP_TYPE_IFINDEX;
		api_nh->ifindex = te->ei->ifp->ifindex;

		count++;
	}
	api.nexthop_num = count;

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
		char buf[2][PREFIX_STRLEN];
		zlog_debug("Zebra: Route add %s nexthop %s",
			   prefix2str(p, buf[0], PREFIX_STRLEN),
			   inet_ntop(AF_INET, 0, buf[1], PREFIX_STRLEN));
	}

	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
}

void eigrp_zebra_route_delete(struct prefix *p)
{
	struct zapi_route api;

	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
		return;

	memset(&api, 0, sizeof(api));
	api.vrf_id = VRF_DEFAULT;
	api.type = ZEBRA_ROUTE_EIGRP;
	api.safi = SAFI_UNICAST;
	memcpy(&api.prefix, p, sizeof(*p));
	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);

	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
		char buf[PREFIX_STRLEN];
		zlog_debug("Zebra: Route del %s",
			   prefix2str(p, buf, PREFIX_STRLEN));
	}

	return;
}

int eigrp_is_type_redistributed(int type)
{
	return ((DEFAULT_ROUTE_TYPE(type))
			? vrf_bitmap_check(zclient->default_information[AFI_IP],
					   VRF_DEFAULT)
			: vrf_bitmap_check(zclient->redist[AFI_IP][type],
					   VRF_DEFAULT));
}

int eigrp_redistribute_set(struct eigrp *eigrp, int type,
			   struct eigrp_metrics metric)
{

	if (eigrp_is_type_redistributed(type)) {
		if (eigrp_metrics_is_same(metric, eigrp->dmetric[type])) {
			eigrp->dmetric[type] = metric;
		}

		eigrp_external_routes_refresh(eigrp, type);

		//      if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE))
		//        zlog_debug ("Redistribute[%s]: Refresh  Type[%d],
		//        Metric[%d]",
		//                   eigrp_redist_string(type),
		//                   metric_type (eigrp, type), metric_value
		//                   (eigrp, type));
		return CMD_SUCCESS;
	}

	eigrp->dmetric[type] = metric;

	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, 0,
			     eigrp->vrf_id);

	++eigrp->redistribute;

	return CMD_SUCCESS;
}

int eigrp_redistribute_unset(struct eigrp *eigrp, int type)
{

	if (eigrp_is_type_redistributed(type)) {
		memset(&eigrp->dmetric[type], 0, sizeof(struct eigrp_metrics));
		zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP,
				     type, 0, eigrp->vrf_id);
		--eigrp->redistribute;
	}

	return CMD_SUCCESS;
}
Commit	Line	Data
7f57883e DS	1	/*
	2	* Zebra connect library for EIGRP.
	3	* Copyright (C) 2013-2014
	4	* Authors:
	5	* Donnie Savage
	6	* Jan Janovic
	7	* Matej Perina
	8	* Peter Orsag
	9	* Peter Paluch
	10	*
	11	* This file is part of GNU Zebra.
	12	*
	13	* GNU Zebra is free software; you can redistribute it and/or modify it
	14	* under the terms of the GNU General Public License as published by the
	15	* Free Software Foundation; either version 2, or (at your option) any
	16	* later version.
	17	*
	18	* GNU Zebra is distributed in the hope that it will be useful, but
	19	* WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	21	* General Public License for more details.
	22	*
896014f4 DL	23	* You should have received a copy of the GNU General Public License along
	24	* with this program; see the file COPYING; if not, write to the Free Software
	25	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
7f57883e DS	26	*/
	27
	28	#include <zebra.h>
	29
	30	#include "thread.h"
	31	#include "command.h"
	32	#include "network.h"
	33	#include "prefix.h"
	34	#include "routemap.h"
	35	#include "table.h"
	36	#include "stream.h"
	37	#include "memory.h"
	38	#include "zclient.h"
	39	#include "filter.h"
	40	#include "plist.h"
	41	#include "log.h"
	42	#include "nexthop.h"
	43
	44	#include "eigrpd/eigrp_structs.h"
	45	#include "eigrpd/eigrpd.h"
	46	#include "eigrpd/eigrp_interface.h"
	47	#include "eigrpd/eigrp_neighbor.h"
	48	#include "eigrpd/eigrp_packet.h"
	49	#include "eigrpd/eigrp_zebra.h"
	50	#include "eigrpd/eigrp_vty.h"
	51	#include "eigrpd/eigrp_dump.h"
	52	#include "eigrpd/eigrp_network.h"
	53	#include "eigrpd/eigrp_topology.h"
	54	#include "eigrpd/eigrp_fsm.h"
	55
121f9dee QY	56	static int eigrp_interface_add(ZAPI_CALLBACK_ARGS);
	57	static int eigrp_interface_delete(ZAPI_CALLBACK_ARGS);
	58	static int eigrp_interface_address_add(ZAPI_CALLBACK_ARGS);
	59	static int eigrp_interface_address_delete(ZAPI_CALLBACK_ARGS);
	60	static int eigrp_interface_state_up(ZAPI_CALLBACK_ARGS);
	61	static int eigrp_interface_state_down(ZAPI_CALLBACK_ARGS);
d62a17ae	62	static struct interface zebra_interface_if_lookup(struct stream );
d62a17ae	63
121f9dee	64	static int eigrp_zebra_read_route(ZAPI_CALLBACK_ARGS);
7f57883e DS	65
	66	/* Zebra structure to hold current status. */
	67	struct zclient *zclient = NULL;
	68
	69	/* For registering threads. */
	70	extern struct thread_master *master;
	71	struct in_addr router_id_zebra;
	72
	73	/* Router-id update message from zebra. */
121f9dee	74	static int eigrp_router_id_update_zebra(ZAPI_CALLBACK_ARGS)
7f57883e	75	{
d62a17ae	76	struct eigrp *eigrp;
	77	struct prefix router_id;
	78	zebra_router_id_update_read(zclient->ibuf, &router_id);
7f57883e	79
d62a17ae	80	router_id_zebra = router_id.u.prefix4;
7f57883e	81
d62a17ae	82	eigrp = eigrp_lookup();
7f57883e	83
d62a17ae	84	if (eigrp != NULL)
d62a17ae	85	eigrp_router_id_update(eigrp);
7f57883e	86
d62a17ae	87	return 0;
7f57883e DS	88	}
7f57883e DS	89
121f9dee	90	static int eigrp_zebra_route_notify_owner(ZAPI_CALLBACK_ARGS)
ca890872 DS	91	{
	92	struct prefix p;
	93	enum zapi_route_notify_owner note;
28610f7e	94	uint32_t table;
ca890872	95
28610f7e	96	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
ca890872 DS	97	return -1;
	98
	99	return 0;
	100	}
	101
d62a17ae	102	static void eigrp_zebra_connected(struct zclient *zclient)
08ff1a68	103	{
d62a17ae	104	zclient_send_reg_requests(zclient, VRF_DEFAULT);
08ff1a68	105	}
7f57883e	106
d62a17ae	107	void eigrp_zebra_init(void)
7f57883e	108	{
996c9314	109	struct zclient_options opt = {.receive_notify = false};
ca890872	110
26f63a1e	111	zclient = zclient_new(master, &opt);
d62a17ae	112
342213ea	113	zclient_init(zclient, ZEBRA_ROUTE_EIGRP, 0, &eigrpd_privs);
d62a17ae	114	zclient->zebra_connected = eigrp_zebra_connected;
	115	zclient->router_id_update = eigrp_router_id_update_zebra;
	116	zclient->interface_add = eigrp_interface_add;
	117	zclient->interface_delete = eigrp_interface_delete;
	118	zclient->interface_up = eigrp_interface_state_up;
	119	zclient->interface_down = eigrp_interface_state_down;
	120	zclient->interface_address_add = eigrp_interface_address_add;
	121	zclient->interface_address_delete = eigrp_interface_address_delete;
74489921 RW	122	zclient->redistribute_route_add = eigrp_zebra_read_route;
74489921 RW	123	zclient->redistribute_route_del = eigrp_zebra_read_route;
28b11f81	124	zclient->route_notify_owner = eigrp_zebra_route_notify_owner;
7f57883e DS	125	}
	126
	127
	128	/* Zebra route add and delete treatment. */
121f9dee	129	static int eigrp_zebra_read_route(ZAPI_CALLBACK_ARGS)
7f57883e	130	{
74489921	131	struct zapi_route api;
d62a17ae	132	struct eigrp *eigrp;
d62a17ae	133
74489921 RW	134	if (zapi_route_decode(zclient->ibuf, &api) < 0)
74489921 RW	135	return -1;
d62a17ae	136
74489921	137	if (IPV4_NET127(ntohl(api.prefix.u.prefix4.s_addr)))
d62a17ae	138	return 0;
d62a17ae	139
d62a17ae	140	eigrp = eigrp_lookup();
	141	if (eigrp == NULL)
	142	return 0;
	143
121f9dee	144	if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {
d62a17ae	145
121f9dee	146	} else /* if (cmd == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */
d62a17ae	147	{
	148	}
	149
	150	return 0;
7f57883e DS	151	}
	152
	153	/* Inteface addition message from zebra. */
121f9dee	154	static int eigrp_interface_add(ZAPI_CALLBACK_ARGS)
7f57883e	155	{
d62a17ae	156	struct interface *ifp;
b748db67	157	struct eigrp_interface *ei;
7f57883e	158
d62a17ae	159	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
7f57883e	160
b748db67 DS	161	if (!ifp->info)
b748db67 DS	162	return 0;
7f57883e	163
b748db67 DS	164	ei = ifp->info;
	165
	166	ei->params.type = eigrp_default_iftype(ifp);
7f57883e	167
d62a17ae	168	eigrp_if_update(ifp);
7f57883e	169
d62a17ae	170	return 0;
7f57883e DS	171	}
7f57883e DS	172
121f9dee	173	static int eigrp_interface_delete(ZAPI_CALLBACK_ARGS)
7f57883e	174	{
d62a17ae	175	struct interface *ifp;
d62a17ae	176	struct stream *s;
d62a17ae	177
	178	s = zclient->ibuf;
	179	/* zebra_interface_state_read () updates interface structure in iflist
	180	*/
	181	ifp = zebra_interface_state_read(s, vrf_id);
	182
	183	if (ifp == NULL)
	184	return 0;
	185
	186	if (if_is_up(ifp))
	187	zlog_warn("Zebra: got delete of %s, but interface is still up",
	188	ifp->name);
	189
	190	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	191	zlog_debug(
	192	"Zebra: interface delete %s index %d flags %llx metric %d mtu %d",
	193	ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
	194	ifp->metric, ifp->mtu);
	195
b748db67	196	if (ifp->info)
996c9314	197	eigrp_if_free(ifp->info, INTERFACE_DOWN_BY_ZEBRA);
d62a17ae	198
ff880b78	199	if_set_index(ifp, IFINDEX_INTERNAL);
d62a17ae	200	return 0;
7f57883e DS	201	}
7f57883e DS	202
121f9dee	203	static int eigrp_interface_address_add(ZAPI_CALLBACK_ARGS)
7f57883e	204	{
d62a17ae	205	struct connected *c;
7f57883e	206
121f9dee	207	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
7f57883e	208
d62a17ae	209	if (c == NULL)
d62a17ae	210	return 0;
7f57883e	211
d62a17ae	212	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	213	char buf[128];
	214	prefix2str(c->address, buf, sizeof(buf));
	215	zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
	216	buf);
	217	}
7f57883e	218
d62a17ae	219	eigrp_if_update(c->ifp);
7f57883e	220
d62a17ae	221	return 0;
7f57883e DS	222	}
7f57883e DS	223
121f9dee	224	static int eigrp_interface_address_delete(ZAPI_CALLBACK_ARGS)
7f57883e	225	{
d62a17ae	226	struct connected *c;
	227	struct interface *ifp;
	228	struct eigrp_interface *ei;
7f57883e	229
121f9dee	230	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
7f57883e	231
d62a17ae	232	if (c == NULL)
d62a17ae	233	return 0;
7f57883e	234
d62a17ae	235	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	236	char buf[128];
	237	prefix2str(c->address, buf, sizeof(buf));
	238	zlog_debug("Zebra: interface %s address delete %s",
	239	c->ifp->name, buf);
	240	}
7f57883e	241
d62a17ae	242	ifp = c->ifp;
b748db67 DS	243	ei = ifp->info;
b748db67 DS	244	if (!ei)
d62a17ae	245	return 0;
7f57883e	246
d62a17ae	247	/* Call interface hook functions to clean up */
84b5e534 DS	248	if (prefix_cmp(&ei->address, c->address) == 0)
84b5e534 DS	249	eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);
7f57883e	250
d62a17ae	251	connected_free(c);
7f57883e	252
d62a17ae	253	return 0;
7f57883e DS	254	}
7f57883e DS	255
121f9dee	256	static int eigrp_interface_state_up(ZAPI_CALLBACK_ARGS)
7f57883e	257	{
d62a17ae	258	struct interface *ifp;
7f57883e	259
d62a17ae	260	ifp = zebra_interface_if_lookup(zclient->ibuf);
7f57883e	261
d62a17ae	262	if (ifp == NULL)
d62a17ae	263	return 0;
7f57883e	264
d62a17ae	265	/* Interface is already up. */
	266	if (if_is_operative(ifp)) {
	267	/* Temporarily keep ifp values. */
	268	struct interface if_tmp;
	269	memcpy(&if_tmp, ifp, sizeof(struct interface));
7f57883e	270
d62a17ae	271	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	272
d62a17ae	273	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	274	zlog_debug("Zebra: Interface[%s] state update.",
	275	ifp->name);
7f57883e	276
d62a17ae	277	if (if_tmp.bandwidth != ifp->bandwidth) {
	278	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	279	zlog_debug(
	280	"Zebra: Interface[%s] bandwidth change %d -> %d.",
	281	ifp->name, if_tmp.bandwidth,
	282	ifp->bandwidth);
7f57883e	283
d62a17ae	284	// eigrp_if_recalculate_output_cost (ifp);
d62a17ae	285	}
7f57883e	286
d62a17ae	287	if (if_tmp.mtu != ifp->mtu) {
	288	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	289	zlog_debug(
	290	"Zebra: Interface[%s] MTU change %u -> %u.",
	291	ifp->name, if_tmp.mtu, ifp->mtu);
7f57883e	292
d62a17ae	293	/* Must reset the interface (simulate down/up) when MTU
	294	* changes. */
	295	eigrp_if_reset(ifp);
	296	}
	297	return 0;
	298	}
7f57883e	299
d62a17ae	300	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	301
d62a17ae	302	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	303	zlog_debug("Zebra: Interface[%s] state change to up.",
	304	ifp->name);
7f57883e	305
b748db67 DS	306	if (ifp->info)
b748db67 DS	307	eigrp_if_up(ifp->info);
7f57883e	308
d62a17ae	309	return 0;
7f57883e DS	310	}
7f57883e DS	311
121f9dee	312	static int eigrp_interface_state_down(ZAPI_CALLBACK_ARGS)
7f57883e	313	{
d62a17ae	314	struct interface *ifp;
7f57883e	315
d62a17ae	316	ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
7f57883e	317
d62a17ae	318	if (ifp == NULL)
d62a17ae	319	return 0;
7f57883e	320
d62a17ae	321	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	322	zlog_debug("Zebra: Interface[%s] state change to down.",
	323	ifp->name);
7f57883e	324
b748db67 DS	325	if (ifp->info)
b748db67 DS	326	eigrp_if_down(ifp->info);
7f57883e	327
d62a17ae	328	return 0;
7f57883e DS	329	}
7f57883e DS	330
d62a17ae	331	static struct interface zebra_interface_if_lookup(struct stream s)
7f57883e	332	{
d62a17ae	333	char ifname_tmp[INTERFACE_NAMSIZ];
7f57883e	334
d62a17ae	335	/* Read interface name. */
d62a17ae	336	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
7f57883e	337
d62a17ae	338	/* And look it up. */
a36898e7	339	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
7f57883e DS	340	}
7f57883e DS	341
0f9bc496 DS	342	void eigrp_zebra_route_add(struct prefix p, struct list successors,
0f9bc496 DS	343	uint32_t distance)
7f57883e	344	{
8fb753e3 RW	345	struct zapi_route api;
8fb753e3 RW	346	struct zapi_nexthop *api_nh;
255ab940	347	struct eigrp_nexthop_entry *te;
d62a17ae	348	struct listnode *node;
8fb753e3	349	int count = 0;
d62a17ae	350
d00061ea RW	351	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	352	return;
	353
8fb753e3 RW	354	memset(&api, 0, sizeof(api));
	355	api.vrf_id = VRF_DEFAULT;
	356	api.type = ZEBRA_ROUTE_EIGRP;
	357	api.safi = SAFI_UNICAST;
0f9bc496	358	api.metric = distance;
8fb753e3	359	memcpy(&api.prefix, p, sizeof(*p));
d00061ea	360
8fb753e3	361	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
0f9bc496	362	SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
d00061ea RW	363
	364	/* Nexthop, ifindex, distance and metric information. */
	365	for (ALL_LIST_ELEMENTS_RO(successors, node, te)) {
a74e593b RW	366	if (count >= MULTIPATH_NUM)
a74e593b RW	367	break;
8fb753e3	368	api_nh = &api.nexthops[count];
4a7371e9	369	api_nh->vrf_id = VRF_DEFAULT;
d00061ea	370	if (te->adv_router->src.s_addr) {
8fb753e3 RW	371	api_nh->gate.ipv4 = te->adv_router->src;
8fb753e3 RW	372	api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
d00061ea	373	} else
8fb753e3 RW	374	api_nh->type = NEXTHOP_TYPE_IFINDEX;
	375	api_nh->ifindex = te->ei->ifp->ifindex;
	376
	377	count++;
d00061ea	378	}
a74e593b	379	api.nexthop_num = count;
d62a17ae	380
d00061ea	381	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	382	char buf[2][PREFIX_STRLEN];
	383	zlog_debug("Zebra: Route add %s nexthop %s",
	384	prefix2str(p, buf[0], PREFIX_STRLEN),
	385	inet_ntop(AF_INET, 0, buf[1], PREFIX_STRLEN));
d00061ea	386	}
d62a17ae	387
8fb753e3	388	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
7f57883e DS	389	}
7f57883e DS	390
836aad7e	391	void eigrp_zebra_route_delete(struct prefix *p)
7f57883e	392	{
8fb753e3	393	struct zapi_route api;
d62a17ae	394
d00061ea RW	395	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	396	return;
	397
8fb753e3	398	memset(&api, 0, sizeof(api));
d00061ea RW	399	api.vrf_id = VRF_DEFAULT;
d00061ea RW	400	api.type = ZEBRA_ROUTE_EIGRP;
d00061ea	401	api.safi = SAFI_UNICAST;
8fb753e3 RW	402	memcpy(&api.prefix, p, sizeof(*p));
8fb753e3 RW	403	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
d00061ea RW	404
d00061ea RW	405	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	406	char buf[PREFIX_STRLEN];
	407	zlog_debug("Zebra: Route del %s",
	408	prefix2str(p, buf, PREFIX_STRLEN));
d62a17ae	409	}
	410
	411	return;
7f57883e DS	412	}
7f57883e DS	413
d62a17ae	414	int eigrp_is_type_redistributed(int type)
7f57883e	415	{
d62a17ae	416	return ((DEFAULT_ROUTE_TYPE(type))
49db7a7b	417	? vrf_bitmap_check(zclient->default_information[AFI_IP],
d62a17ae	418	VRF_DEFAULT)
	419	: vrf_bitmap_check(zclient->redist[AFI_IP][type],
	420	VRF_DEFAULT));
7f57883e DS	421	}
7f57883e DS	422
d62a17ae	423	int eigrp_redistribute_set(struct eigrp *eigrp, int type,
d62a17ae	424	struct eigrp_metrics metric)
7f57883e DS	425	{
7f57883e DS	426
d62a17ae	427	if (eigrp_is_type_redistributed(type)) {
	428	if (eigrp_metrics_is_same(metric, eigrp->dmetric[type])) {
	429	eigrp->dmetric[type] = metric;
	430	}
7f57883e	431
d62a17ae	432	eigrp_external_routes_refresh(eigrp, type);
7f57883e	433
d62a17ae	434	// if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE))
	435	// zlog_debug ("Redistribute[%s]: Refresh Type[%d],
	436	// Metric[%d]",
	437	// eigrp_redist_string(type),
	438	// metric_type (eigrp, type), metric_value
	439	// (eigrp, type));
	440	return CMD_SUCCESS;
	441	}
7f57883e	442
d62a17ae	443	eigrp->dmetric[type] = metric;
7f57883e	444
d62a17ae	445	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, 0,
daa64bdf	446	eigrp->vrf_id);
7f57883e	447
d62a17ae	448	++eigrp->redistribute;
7f57883e	449
d62a17ae	450	return CMD_SUCCESS;
7f57883e DS	451	}
7f57883e DS	452
d62a17ae	453	int eigrp_redistribute_unset(struct eigrp *eigrp, int type)
7f57883e DS	454	{
7f57883e DS	455
d62a17ae	456	if (eigrp_is_type_redistributed(type)) {
	457	memset(&eigrp->dmetric[type], 0, sizeof(struct eigrp_metrics));
	458	zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP,
daa64bdf	459	type, 0, eigrp->vrf_id);
d62a17ae	460	--eigrp->redistribute;
d62a17ae	461	}
7f57883e	462
d62a17ae	463	return CMD_SUCCESS;
7f57883e	464	}