[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_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_notify(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->notify_owner = eigrp_zebra_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
ca890872 DS	97	static int eigrp_zebra_notify_owner(int command, struct zclient *zclient,
	98	zebra_size_t length, vrf_id_t vrf_id)
	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	{
ca890872 DS	117	struct zclient_options opt = { .receive_notify = false };
	118
	119	zclient = zclient_new_notify(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;
ca890872	132	zclient->notify_owner = eigrp_zebra_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 DS	207	if (ifp->info)
	208	eigrp_if_free(ifp->info,
	209	INTERFACE_DOWN_BY_ZEBRA);
d62a17ae	210
ff880b78	211	if_set_index(ifp, IFINDEX_INTERNAL);
d62a17ae	212	return 0;
7f57883e DS	213	}
7f57883e DS	214
d62a17ae	215	static int eigrp_interface_address_add(int command, struct zclient *zclient,
d62a17ae	216	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	217	{
d62a17ae	218	struct connected *c;
7f57883e	219
d62a17ae	220	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
7f57883e	221
d62a17ae	222	if (c == NULL)
d62a17ae	223	return 0;
7f57883e	224
d62a17ae	225	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	226	char buf[128];
	227	prefix2str(c->address, buf, sizeof(buf));
	228	zlog_debug("Zebra: interface %s address add %s", c->ifp->name,
	229	buf);
	230	}
7f57883e	231
d62a17ae	232	eigrp_if_update(c->ifp);
7f57883e	233
d62a17ae	234	return 0;
7f57883e DS	235	}
7f57883e DS	236
d62a17ae	237	static int eigrp_interface_address_delete(int command, struct zclient *zclient,
d62a17ae	238	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	239	{
d62a17ae	240	struct connected *c;
	241	struct interface *ifp;
	242	struct eigrp_interface *ei;
7f57883e	243
d62a17ae	244	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
7f57883e	245
d62a17ae	246	if (c == NULL)
d62a17ae	247	return 0;
7f57883e	248
d62a17ae	249	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE)) {
	250	char buf[128];
	251	prefix2str(c->address, buf, sizeof(buf));
	252	zlog_debug("Zebra: interface %s address delete %s",
	253	c->ifp->name, buf);
	254	}
7f57883e	255
d62a17ae	256	ifp = c->ifp;
b748db67 DS	257	ei = ifp->info;
b748db67 DS	258	if (!ei)
d62a17ae	259	return 0;
7f57883e	260
d62a17ae	261	/* Call interface hook functions to clean up */
d62a17ae	262	eigrp_if_free(ei, INTERFACE_DOWN_BY_ZEBRA);
7f57883e	263
d62a17ae	264	connected_free(c);
7f57883e	265
d62a17ae	266	return 0;
7f57883e DS	267	}
7f57883e DS	268
d62a17ae	269	static int eigrp_interface_state_up(int command, struct zclient *zclient,
d62a17ae	270	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	271	{
d62a17ae	272	struct interface *ifp;
7f57883e	273
d62a17ae	274	ifp = zebra_interface_if_lookup(zclient->ibuf);
7f57883e	275
d62a17ae	276	if (ifp == NULL)
d62a17ae	277	return 0;
7f57883e	278
d62a17ae	279	/* Interface is already up. */
	280	if (if_is_operative(ifp)) {
	281	/* Temporarily keep ifp values. */
	282	struct interface if_tmp;
	283	memcpy(&if_tmp, ifp, sizeof(struct interface));
7f57883e	284
d62a17ae	285	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	286
d62a17ae	287	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	288	zlog_debug("Zebra: Interface[%s] state update.",
	289	ifp->name);
7f57883e	290
d62a17ae	291	if (if_tmp.bandwidth != ifp->bandwidth) {
	292	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	293	zlog_debug(
	294	"Zebra: Interface[%s] bandwidth change %d -> %d.",
	295	ifp->name, if_tmp.bandwidth,
	296	ifp->bandwidth);
7f57883e	297
d62a17ae	298	// eigrp_if_recalculate_output_cost (ifp);
d62a17ae	299	}
7f57883e	300
d62a17ae	301	if (if_tmp.mtu != ifp->mtu) {
	302	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	303	zlog_debug(
	304	"Zebra: Interface[%s] MTU change %u -> %u.",
	305	ifp->name, if_tmp.mtu, ifp->mtu);
7f57883e	306
d62a17ae	307	/* Must reset the interface (simulate down/up) when MTU
	308	* changes. */
	309	eigrp_if_reset(ifp);
	310	}
	311	return 0;
	312	}
7f57883e	313
d62a17ae	314	zebra_interface_if_set_value(zclient->ibuf, ifp);
7f57883e	315
d62a17ae	316	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	317	zlog_debug("Zebra: Interface[%s] state change to up.",
	318	ifp->name);
7f57883e	319
b748db67 DS	320	if (ifp->info)
b748db67 DS	321	eigrp_if_up(ifp->info);
7f57883e	322
d62a17ae	323	return 0;
7f57883e DS	324	}
7f57883e DS	325
d62a17ae	326	static int eigrp_interface_state_down(int command, struct zclient *zclient,
d62a17ae	327	zebra_size_t length, vrf_id_t vrf_id)
7f57883e	328	{
d62a17ae	329	struct interface *ifp;
7f57883e	330
d62a17ae	331	ifp = zebra_interface_state_read(zclient->ibuf, vrf_id);
7f57883e	332
d62a17ae	333	if (ifp == NULL)
d62a17ae	334	return 0;
7f57883e	335
d62a17ae	336	if (IS_DEBUG_EIGRP(zebra, ZEBRA_INTERFACE))
	337	zlog_debug("Zebra: Interface[%s] state change to down.",
	338	ifp->name);
7f57883e	339
b748db67 DS	340	if (ifp->info)
b748db67 DS	341	eigrp_if_down(ifp->info);
7f57883e	342
d62a17ae	343	return 0;
7f57883e DS	344	}
7f57883e DS	345
d62a17ae	346	static struct interface zebra_interface_if_lookup(struct stream s)
7f57883e	347	{
d62a17ae	348	char ifname_tmp[INTERFACE_NAMSIZ];
7f57883e	349
d62a17ae	350	/* Read interface name. */
d62a17ae	351	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
7f57883e	352
d62a17ae	353	/* And look it up. */
bcc24579	354	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
7f57883e DS	355	}
7f57883e DS	356
836aad7e	357	void eigrp_zebra_route_add(struct prefix p, struct list successors)
7f57883e	358	{
8fb753e3 RW	359	struct zapi_route api;
8fb753e3 RW	360	struct zapi_nexthop *api_nh;
255ab940	361	struct eigrp_nexthop_entry *te;
d62a17ae	362	struct listnode *node;
8fb753e3	363	int count = 0;
d62a17ae	364
d00061ea RW	365	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	366	return;
	367
8fb753e3 RW	368	memset(&api, 0, sizeof(api));
	369	api.vrf_id = VRF_DEFAULT;
	370	api.type = ZEBRA_ROUTE_EIGRP;
	371	api.safi = SAFI_UNICAST;
	372	memcpy(&api.prefix, p, sizeof(*p));
d00061ea	373
8fb753e3	374	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
d00061ea RW	375
	376	/* Nexthop, ifindex, distance and metric information. */
	377	for (ALL_LIST_ELEMENTS_RO(successors, node, te)) {
a74e593b RW	378	if (count >= MULTIPATH_NUM)
a74e593b RW	379	break;
8fb753e3	380	api_nh = &api.nexthops[count];
4a7371e9	381	api_nh->vrf_id = VRF_DEFAULT;
d00061ea	382	if (te->adv_router->src.s_addr) {
8fb753e3 RW	383	api_nh->gate.ipv4 = te->adv_router->src;
8fb753e3 RW	384	api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
d00061ea	385	} else
8fb753e3 RW	386	api_nh->type = NEXTHOP_TYPE_IFINDEX;
	387	api_nh->ifindex = te->ei->ifp->ifindex;
	388
	389	count++;
d00061ea	390	}
a74e593b	391	api.nexthop_num = count;
d62a17ae	392
d00061ea	393	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	394	char buf[2][PREFIX_STRLEN];
	395	zlog_debug("Zebra: Route add %s nexthop %s",
	396	prefix2str(p, buf[0], PREFIX_STRLEN),
	397	inet_ntop(AF_INET, 0, buf[1], PREFIX_STRLEN));
d00061ea	398	}
d62a17ae	399
8fb753e3	400	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
7f57883e DS	401	}
7f57883e DS	402
836aad7e	403	void eigrp_zebra_route_delete(struct prefix *p)
7f57883e	404	{
8fb753e3	405	struct zapi_route api;
d62a17ae	406
d00061ea RW	407	if (!zclient->redist[AFI_IP][ZEBRA_ROUTE_EIGRP])
	408	return;
	409
8fb753e3	410	memset(&api, 0, sizeof(api));
d00061ea RW	411	api.vrf_id = VRF_DEFAULT;
d00061ea RW	412	api.type = ZEBRA_ROUTE_EIGRP;
d00061ea	413	api.safi = SAFI_UNICAST;
8fb753e3 RW	414	memcpy(&api.prefix, p, sizeof(*p));
8fb753e3 RW	415	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
d00061ea RW	416
d00061ea RW	417	if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE)) {
836aad7e DS	418	char buf[PREFIX_STRLEN];
	419	zlog_debug("Zebra: Route del %s",
	420	prefix2str(p, buf, PREFIX_STRLEN));
d62a17ae	421	}
	422
	423	return;
7f57883e DS	424	}
7f57883e DS	425
d62a17ae	426	int eigrp_is_type_redistributed(int type)
7f57883e	427	{
d62a17ae	428	return ((DEFAULT_ROUTE_TYPE(type))
	429	? vrf_bitmap_check(zclient->default_information,
	430	VRF_DEFAULT)
	431	: vrf_bitmap_check(zclient->redist[AFI_IP][type],
	432	VRF_DEFAULT));
7f57883e DS	433	}
7f57883e DS	434
d62a17ae	435	int eigrp_redistribute_set(struct eigrp *eigrp, int type,
d62a17ae	436	struct eigrp_metrics metric)
7f57883e DS	437	{
7f57883e DS	438
d62a17ae	439	if (eigrp_is_type_redistributed(type)) {
	440	if (eigrp_metrics_is_same(metric, eigrp->dmetric[type])) {
	441	eigrp->dmetric[type] = metric;
	442	}
7f57883e	443
d62a17ae	444	eigrp_external_routes_refresh(eigrp, type);
7f57883e	445
d62a17ae	446	// if (IS_DEBUG_EIGRP(zebra, ZEBRA_REDISTRIBUTE))
	447	// zlog_debug ("Redistribute[%s]: Refresh Type[%d],
	448	// Metric[%d]",
	449	// eigrp_redist_string(type),
	450	// metric_type (eigrp, type), metric_value
	451	// (eigrp, type));
	452	return CMD_SUCCESS;
	453	}
7f57883e	454
d62a17ae	455	eigrp->dmetric[type] = metric;
7f57883e	456
d62a17ae	457	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP, type, 0,
d62a17ae	458	VRF_DEFAULT);
7f57883e	459
d62a17ae	460	++eigrp->redistribute;
7f57883e	461
d62a17ae	462	return CMD_SUCCESS;
7f57883e DS	463	}
7f57883e DS	464
d62a17ae	465	int eigrp_redistribute_unset(struct eigrp *eigrp, int type)
7f57883e DS	466	{
7f57883e DS	467
d62a17ae	468	if (eigrp_is_type_redistributed(type)) {
	469	memset(&eigrp->dmetric[type], 0, sizeof(struct eigrp_metrics));
	470	zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, AFI_IP,
	471	type, 0, VRF_DEFAULT);
	472	--eigrp->redistribute;
	473	}
7f57883e	474
d62a17ae	475	return CMD_SUCCESS;
7f57883e	476	}