[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(int, struct zclient *, zebra_size_t, vrf_id_t);
static int eigrp_interface_delete(int, struct zclient *, zebra_size_t,
				  vrf_id_t);
static int eigrp_interface_address_add(int, struct zclient *, zebra_size_t,
				       vrf_id_t vrf_id);
static int eigrp_interface_address_delete(int, struct zclient *, zebra_size_t,
					  vrf_id_t vrf_id);
static int eigrp_interface_state_up(int, struct zclient *, zebra_size_t,
				    vrf_id_t vrf_id);
static int eigrp_interface_state_down(int, struct zclient *, zebra_size_t,
				      vrf_id_t vrf_id);
static struct interface *zebra_interface_if_lookup(struct stream *);

static int eigrp_zebra_read_route(int, struct zclient *, zebra_size_t,
				  vrf_id_t vrf_id);

/* 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(int command, struct zclient *zclient,
					zebra_size_t length, vrf_id_t vrf_id)
{
	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(int command, struct zclient *zclient,
					  zebra_size_t length, vrf_id_t vrf_id)
{
	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(int command, struct zclient *zclient,
				  zebra_size_t length, vrf_id_t vrf_id)
{
	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 (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {

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

	return 0;
}

/* Inteface addition message from zebra. */
static int eigrp_interface_add(int command, struct zclient *zclient,
			       zebra_size_t length, vrf_id_t vrf_id)
{
	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(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))
		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(int command, struct zclient *zclient,
				       zebra_size_t length, vrf_id_t vrf_id)
{
	struct connected *c;

	c = zebra_interface_address_read(command, 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(int command, struct zclient *zclient,
					  zebra_size_t length, vrf_id_t vrf_id)
{
	struct connected *c;
	struct interface *ifp;
	struct eigrp_interface *ei;

	c = zebra_interface_address_read(command, 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 */
	eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);

	connected_free(c);

	return 0;
}

static int eigrp_interface_state_up(int command, struct zclient *zclient,
				    zebra_size_t length, vrf_id_t vrf_id)
{
	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(int command, struct zclient *zclient,
				      zebra_size_t length, vrf_id_t vrf_id)
{
	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)
{
	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;
	memcpy(&api.prefix, p, sizeof(*p));

	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);

	/* 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,
					   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,
			     VRF_DEFAULT);

	++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, VRF_DEFAULT);
		--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
d62a17ae	56	static int eigrp_interface_add(int, struct zclient *, zebra_size_t, vrf_id_t);
	57	static int eigrp_interface_delete(int, struct zclient *, zebra_size_t,
	58	vrf_id_t);
	59	static int eigrp_interface_address_add(int, struct zclient *, zebra_size_t,
	60	vrf_id_t vrf_id);
	61	static int eigrp_interface_address_delete(int, struct zclient *, zebra_size_t,
	62	vrf_id_t vrf_id);
	63	static int eigrp_interface_state_up(int, struct zclient *, zebra_size_t,
	64	vrf_id_t vrf_id);
	65	static int eigrp_interface_state_down(int, struct zclient *, zebra_size_t,
	66	vrf_id_t vrf_id);
	67	static struct interface zebra_interface_if_lookup(struct stream );
	68
74489921 RW	69	static int eigrp_zebra_read_route(int, struct zclient *, zebra_size_t,
74489921 RW	70	vrf_id_t vrf_id);
7f57883e DS	71
	72	/* Zebra structure to hold current status. */
	73	struct zclient *zclient = NULL;
	74
	75	/* For registering threads. */
	76	extern struct thread_master *master;
	77	struct in_addr router_id_zebra;
	78
	79	/* Router-id update message from zebra. */
d62a17ae	80	static int eigrp_router_id_update_zebra(int command, struct zclient *zclient,
d62a17ae	81	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	82	{
d62a17ae	83	struct eigrp *eigrp;
	84	struct prefix router_id;
	85	zebra_router_id_update_read(zclient->ibuf, &router_id);
7f57883e	86
d62a17ae	87	router_id_zebra = router_id.u.prefix4;
7f57883e	88
d62a17ae	89	eigrp = eigrp_lookup();
7f57883e	90
d62a17ae	91	if (eigrp != NULL)
d62a17ae	92	eigrp_router_id_update(eigrp);
7f57883e	93
d62a17ae	94	return 0;
7f57883e DS	95	}
7f57883e DS	96
28b11f81 DS	97	static int eigrp_zebra_route_notify_owner(int command, struct zclient *zclient,
28b11f81 DS	98	zebra_size_t length, vrf_id_t vrf_id)
ca890872 DS	99	{
	100	struct prefix p;
	101	enum zapi_route_notify_owner note;
28610f7e	102	uint32_t table;
ca890872	103
28610f7e	104	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
ca890872 DS	105	return -1;
	106
	107	return 0;
	108	}
	109
d62a17ae	110	static void eigrp_zebra_connected(struct zclient *zclient)
08ff1a68	111	{
d62a17ae	112	zclient_send_reg_requests(zclient, VRF_DEFAULT);
08ff1a68	113	}
7f57883e	114
d62a17ae	115	void eigrp_zebra_init(void)
7f57883e	116	{
996c9314	117	struct zclient_options opt = {.receive_notify = false};
ca890872	118
26f63a1e	119	zclient = zclient_new(master, &opt);
d62a17ae	120
342213ea	121	zclient_init(zclient, ZEBRA_ROUTE_EIGRP, 0, &eigrpd_privs);
d62a17ae	122	zclient->zebra_connected = eigrp_zebra_connected;
	123	zclient->router_id_update = eigrp_router_id_update_zebra;
	124	zclient->interface_add = eigrp_interface_add;
	125	zclient->interface_delete = eigrp_interface_delete;
	126	zclient->interface_up = eigrp_interface_state_up;
	127	zclient->interface_down = eigrp_interface_state_down;
	128	zclient->interface_address_add = eigrp_interface_address_add;
	129	zclient->interface_address_delete = eigrp_interface_address_delete;
74489921 RW	130	zclient->redistribute_route_add = eigrp_zebra_read_route;
74489921 RW	131	zclient->redistribute_route_del = eigrp_zebra_read_route;
28b11f81	132	zclient->route_notify_owner = eigrp_zebra_route_notify_owner;
7f57883e DS	133	}
	134
	135
	136	/* Zebra route add and delete treatment. */
74489921 RW	137	static int eigrp_zebra_read_route(int command, struct zclient *zclient,
74489921 RW	138	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	139	{
74489921	140	struct zapi_route api;
d62a17ae	141	struct eigrp *eigrp;
d62a17ae	142
74489921 RW	143	if (zapi_route_decode(zclient->ibuf, &api) < 0)
74489921 RW	144	return -1;
d62a17ae	145
74489921	146	if (IPV4_NET127(ntohl(api.prefix.u.prefix4.s_addr)))
d62a17ae	147	return 0;
d62a17ae	148
d62a17ae	149	eigrp = eigrp_lookup();
	150	if (eigrp == NULL)
	151	return 0;
	152
74489921	153	if (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD) {
d62a17ae	154
74489921	155	} else /* if (command == ZEBRA_REDISTRIBUTE_ROUTE_DEL) */
d62a17ae	156	{
	157	}
	158
	159	return 0;
7f57883e DS	160	}
	161
	162	/* Inteface addition message from zebra. */
d62a17ae	163	static int eigrp_interface_add(int command, struct zclient *zclient,
d62a17ae	164	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	165	{
d62a17ae	166	struct interface *ifp;
b748db67	167	struct eigrp_interface *ei;
7f57883e	168
d62a17ae	169	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
7f57883e	170
b748db67 DS	171	if (!ifp->info)
b748db67 DS	172	return 0;
7f57883e	173
b748db67 DS	174	ei = ifp->info;
	175
	176	ei->params.type = eigrp_default_iftype(ifp);
7f57883e	177
d62a17ae	178	eigrp_if_update(ifp);
7f57883e	179
d62a17ae	180	return 0;
7f57883e DS	181	}
7f57883e DS	182
d62a17ae	183	static int eigrp_interface_delete(int command, struct zclient *zclient,
d62a17ae	184	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	185	{
d62a17ae	186	struct interface *ifp;
d62a17ae	187	struct stream *s;
d62a17ae	188
	189	s = zclient->ibuf;
	190	/* zebra_interface_state_read () updates interface structure in iflist
	191	*/
	192	ifp = zebra_interface_state_read(s, vrf_id);
	193
	194	if (ifp == NULL)
	195	return 0;
	196
	197	if (if_is_up(ifp))
	198	zlog_warn("Zebra: got delete of %s, but interface is still up",
	199	ifp->name);
	200
	201	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	202	zlog_debug(
	203	"Zebra: interface delete %s index %d flags %llx metric %d mtu %d",
	204	ifp->name, ifp->ifindex, (unsigned long long)ifp->flags,
	205	ifp->metric, ifp->mtu);
	206
b748db67	207	if (ifp->info)
996c9314	208	eigrp_if_free(ifp->info, INTERFACE_DOWN_BY_ZEBRA);
d62a17ae	209
ff880b78	210	if_set_index(ifp, IFINDEX_INTERNAL);
d62a17ae	211	return 0;
7f57883e DS	212	}
7f57883e DS	213
d62a17ae	214	static int eigrp_interface_address_add(int command, struct zclient *zclient,
d62a17ae	215	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	216	{
d62a17ae	217	struct connected *c;
7f57883e	218
d62a17ae	219	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
7f57883e	220
d62a17ae	221	if (c == NULL)
d62a17ae	222	return 0;
7f57883e	223
d62a17ae	224	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	225	char buf[128];
	226	prefix2str(c->address, buf, sizeof(buf));
	227	zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
	228	buf);
	229	}
7f57883e	230
d62a17ae	231	eigrp_if_update(c->ifp);
7f57883e	232
d62a17ae	233	return 0;
7f57883e DS	234	}
7f57883e DS	235
d62a17ae	236	static int eigrp_interface_address_delete(int command, struct zclient *zclient,
d62a17ae	237	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	238	{
d62a17ae	239	struct connected *c;
	240	struct interface *ifp;
	241	struct eigrp_interface *ei;
7f57883e	242
d62a17ae	243	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
7f57883e	244
d62a17ae	245	if (c == NULL)
d62a17ae	246	return 0;
7f57883e	247
d62a17ae	248	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	249	char buf[128];
	250	prefix2str(c->address, buf, sizeof(buf));
	251	zlog_debug("Zebra: interface %s address delete %s",
	252	c->ifp->name, buf);
	253	}
7f57883e	254
d62a17ae	255	ifp = c->ifp;
b748db67 DS	256	ei = ifp->info;
b748db67 DS	257	if (!ei)
d62a17ae	258	return 0;
7f57883e	259
d62a17ae	260	/* Call interface hook functions to clean up */
d62a17ae	261	eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);
7f57883e	262
d62a17ae	263	connected_free(c);
7f57883e	264
d62a17ae	265	return 0;
7f57883e DS	266	}
7f57883e DS	267
d62a17ae	268	static int eigrp_interface_state_up(int command, struct zclient *zclient,
d62a17ae	269	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	270	{
d62a17ae	271	struct interface *ifp;
7f57883e	272
d62a17ae	273	ifp = zebra_interface_if_lookup(zclient->ibuf);
7f57883e	274
d62a17ae	275	if (ifp == NULL)
d62a17ae	276	return 0;
7f57883e	277
d62a17ae	278	/* Interface is already up. */
	279	if (if_is_operative(ifp)) {
	280	/* Temporarily keep ifp values. */
	281	struct interface if_tmp;
	282	memcpy(&if_tmp, ifp, sizeof(struct interface));
7f57883e	283
d62a17ae	284	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	285
d62a17ae	286	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	287	zlog_debug("Zebra: Interface[%s] state update.",
	288	ifp->name);
7f57883e	289
d62a17ae	290	if (if_tmp.bandwidth != ifp->bandwidth) {
	291	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	292	zlog_debug(
	293	"Zebra: Interface[%s] bandwidth change %d -> %d.",
	294	ifp->name, if_tmp.bandwidth,
	295	ifp->bandwidth);
7f57883e	296
d62a17ae	297	// eigrp_if_recalculate_output_cost (ifp);
d62a17ae	298	}
7f57883e	299
d62a17ae	300	if (if_tmp.mtu != ifp->mtu) {
	301	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	302	zlog_debug(
	303	"Zebra: Interface[%s] MTU change %u -> %u.",
	304	ifp->name, if_tmp.mtu, ifp->mtu);
7f57883e	305
d62a17ae	306	/* Must reset the interface (simulate down/up) when MTU
	307	* changes. */
	308	eigrp_if_reset(ifp);
	309	}
	310	return 0;
	311	}
7f57883e	312
d62a17ae	313	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	314
d62a17ae	315	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	316	zlog_debug("Zebra: Interface[%s] state change to up.",
	317	ifp->name);
7f57883e	318
b748db67 DS	319	if (ifp->info)
b748db67 DS	320	eigrp_if_up(ifp->info);
7f57883e	321
d62a17ae	322	return 0;
7f57883e DS	323	}
7f57883e DS	324
d62a17ae	325	static int eigrp_interface_state_down(int command, struct zclient *zclient,
d62a17ae	326	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	327	{
d62a17ae	328	struct interface *ifp;
7f57883e	329
d62a17ae	330	ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
7f57883e	331
d62a17ae	332	if (ifp == NULL)
d62a17ae	333	return 0;
7f57883e	334
d62a17ae	335	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	336	zlog_debug("Zebra: Interface[%s] state change to down.",
	337	ifp->name);
7f57883e	338
b748db67 DS	339	if (ifp->info)
b748db67 DS	340	eigrp_if_down(ifp->info);
7f57883e	341
d62a17ae	342	return 0;
7f57883e DS	343	}
7f57883e DS	344
d62a17ae	345	static struct interface zebra_interface_if_lookup(struct stream s)
7f57883e	346	{
d62a17ae	347	char ifname_tmp[INTERFACE_NAMSIZ];
7f57883e	348
d62a17ae	349	/* Read interface name. */
d62a17ae	350	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
7f57883e	351
d62a17ae	352	/* And look it up. */
bcc24579	353	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
7f57883e DS	354	}
7f57883e DS	355
836aad7e	356	void eigrp_zebra_route_add(struct prefix p, struct list successors)
7f57883e	357	{
8fb753e3 RW	358	struct zapi_route api;
8fb753e3 RW	359	struct zapi_nexthop *api_nh;
255ab940	360	struct eigrp_nexthop_entry *te;
d62a17ae	361	struct listnode *node;
8fb753e3	362	int count = 0;
d62a17ae	363
d00061ea RW	364	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	365	return;
	366
8fb753e3 RW	367	memset(&api, 0, sizeof(api));
	368	api.vrf_id = VRF_DEFAULT;
	369	api.type = ZEBRA_ROUTE_EIGRP;
	370	api.safi = SAFI_UNICAST;
	371	memcpy(&api.prefix, p, sizeof(*p));
d00061ea	372
8fb753e3	373	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
d00061ea RW	374
	375	/* Nexthop, ifindex, distance and metric information. */
	376	for (ALL_LIST_ELEMENTS_RO(successors, node, te)) {
a74e593b RW	377	if (count >= MULTIPATH_NUM)
a74e593b RW	378	break;
8fb753e3	379	api_nh = &api.nexthops[count];
4a7371e9	380	api_nh->vrf_id = VRF_DEFAULT;
d00061ea	381	if (te->adv_router->src.s_addr) {
8fb753e3 RW	382	api_nh->gate.ipv4 = te->adv_router->src;
8fb753e3 RW	383	api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
d00061ea	384	} else
8fb753e3 RW	385	api_nh->type = NEXTHOP_TYPE_IFINDEX;
	386	api_nh->ifindex = te->ei->ifp->ifindex;
	387
	388	count++;
d00061ea	389	}
a74e593b	390	api.nexthop_num = count;
d62a17ae	391
d00061ea	392	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	393	char buf[2][PREFIX_STRLEN];
	394	zlog_debug("Zebra: Route add %s nexthop %s",
	395	prefix2str(p, buf[0], PREFIX_STRLEN),
	396	inet_ntop(AF_INET, 0, buf[1], PREFIX_STRLEN));
d00061ea	397	}
d62a17ae	398
8fb753e3	399	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
7f57883e DS	400	}
7f57883e DS	401
836aad7e	402	void eigrp_zebra_route_delete(struct prefix *p)
7f57883e	403	{
8fb753e3	404	struct zapi_route api;
d62a17ae	405
d00061ea RW	406	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	407	return;
	408
8fb753e3	409	memset(&api, 0, sizeof(api));
d00061ea RW	410	api.vrf_id = VRF_DEFAULT;
d00061ea RW	411	api.type = ZEBRA_ROUTE_EIGRP;
d00061ea	412	api.safi = SAFI_UNICAST;
8fb753e3 RW	413	memcpy(&api.prefix, p, sizeof(*p));
8fb753e3 RW	414	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
d00061ea RW	415
d00061ea RW	416	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	417	char buf[PREFIX_STRLEN];
	418	zlog_debug("Zebra: Route del %s",
	419	prefix2str(p, buf, PREFIX_STRLEN));
d62a17ae	420	}
	421
	422	return;
7f57883e DS	423	}
7f57883e DS	424
d62a17ae	425	int eigrp_is_type_redistributed(int type)
7f57883e	426	{
d62a17ae	427	return ((DEFAULT_ROUTE_TYPE(type))
	428	? vrf_bitmap_check(zclient->default_information,
	429	VRF_DEFAULT)
	430	: vrf_bitmap_check(zclient->redist[AFI_IP][type],
	431	VRF_DEFAULT));
7f57883e DS	432	}
7f57883e DS	433
d62a17ae	434	int eigrp_redistribute_set(struct eigrp *eigrp, int type,
d62a17ae	435	struct eigrp_metrics metric)
7f57883e DS	436	{
7f57883e DS	437
d62a17ae	438	if (eigrp_is_type_redistributed(type)) {
	439	if (eigrp_metrics_is_same(metric, eigrp->dmetric[type])) {
	440	eigrp->dmetric[type] = metric;
	441	}
7f57883e	442
d62a17ae	443	eigrp_external_routes_refresh(eigrp, type);
7f57883e	444
d62a17ae	445	// if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE))
	446	// zlog_debug ("Redistribute[%s]: Refresh Type[%d],
	447	// Metric[%d]",
	448	// eigrp_redist_string(type),
	449	// metric_type (eigrp, type), metric_value
	450	// (eigrp, type));
	451	return CMD_SUCCESS;
	452	}
7f57883e	453
d62a17ae	454	eigrp->dmetric[type] = metric;
7f57883e	455
d62a17ae	456	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, 0,
d62a17ae	457	VRF_DEFAULT);
7f57883e	458
d62a17ae	459	++eigrp->redistribute;
7f57883e	460
d62a17ae	461	return CMD_SUCCESS;
7f57883e DS	462	}
7f57883e DS	463
d62a17ae	464	int eigrp_redistribute_unset(struct eigrp *eigrp, int type)
7f57883e DS	465	{
7f57883e DS	466
d62a17ae	467	if (eigrp_is_type_redistributed(type)) {
	468	memset(&eigrp->dmetric[type], 0, sizeof(struct eigrp_metrics));
	469	zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP,
	470	type, 0, VRF_DEFAULT);
	471	--eigrp->redistribute;
	472	}
7f57883e	473
d62a17ae	474	return CMD_SUCCESS;
7f57883e	475	}