[mirror_frr.git] / sharpd / sharp_zebra.c

/*
 * Zebra connect code.
 * Copyright (C) Cumulus Networks, Inc.
 *               Donald Sharp
 *
 * This file is part of FRR.
 *
 * FRR 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.
 *
 * FRR 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 "nexthop_group.h"

#include "sharp_globals.h"
#include "sharp_nht.h"
#include "sharp_zebra.h"

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

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

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);
}

/* Inteface addition message from zebra. */
static int 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 (!ifp->info)
		return 0;

	return 0;
}

static int 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_set_index(ifp, IFINDEX_INTERNAL);

	return 0;
}

static int interface_address_add(int command, struct zclient *zclient,
				 zebra_size_t length, vrf_id_t vrf_id)
{

	zebra_interface_address_read(command, zclient->ibuf, vrf_id);

	return 0;
}

static int interface_address_delete(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)
		return 0;

	connected_free(c);
	return 0;
}

static int interface_state_up(int command, struct zclient *zclient,
			      zebra_size_t length, vrf_id_t vrf_id)
{

	zebra_interface_if_lookup(zclient->ibuf);

	return 0;
}

static int interface_state_down(int command, struct zclient *zclient,
				zebra_size_t length, vrf_id_t vrf_id)
{

	zebra_interface_state_read(zclient->ibuf, vrf_id);

	return 0;
}

void sharp_install_routes_helper(struct prefix *p, vrf_id_t vrf_id,
				 uint8_t instance, struct nexthop_group *nhg,
				 uint32_t routes)
{
	uint32_t temp, i;
	bool v4 = false;

	zlog_debug("Inserting %u routes", routes);

	if (p->family == AF_INET) {
		v4 = true;
		temp = ntohl(p->u.prefix4.s_addr);
	} else
		temp = ntohl(p->u.val32[3]);

	monotime(&sg.r.t_start);
	for (i = 0; i < routes; i++) {
		route_add(p, vrf_id, (uint8_t)instance, nhg);
		if (v4)
			p->u.prefix4.s_addr = htonl(++temp);
		else
			p->u.val32[3] = htonl(++temp);
	}
}

void sharp_remove_routes_helper(struct prefix *p, vrf_id_t vrf_id,
				uint8_t instance, uint32_t routes)
{
	uint32_t temp, i;
	bool v4 = false;

	zlog_debug("Removing %u routes", routes);

	if (p->family == AF_INET) {
		v4 = true;
		temp = ntohl(p->u.prefix4.s_addr);
	} else
		temp = ntohl(p->u.val32[3]);

	monotime(&sg.r.t_start);
	for (i = 0; i < routes; i++) {
		route_delete(p, vrf_id, (uint8_t)instance);
		if (v4)
			p->u.prefix4.s_addr = htonl(++temp);
		else
			p->u.val32[3] = htonl(++temp);
	}
}

static void handle_repeated(bool installed)
{
	struct prefix p = sg.r.orig_prefix;
	sg.r.repeat--;

	if (sg.r.repeat <= 0)
		return;

	if (installed) {
		sg.r.removed_routes = 0;
		sharp_remove_routes_helper(&p, sg.r.vrf_id,
					   sg.r.inst, sg.r.total_routes);
	}

	if (installed) {
		sg.r.installed_routes = 0;
		sharp_install_routes_helper(&p, sg.r.vrf_id, sg.r.inst,
					    &sg.r.nhop_group,
					    sg.r.total_routes);
	}
}

static int route_notify_owner(int command, struct zclient *zclient,
			      zebra_size_t length, vrf_id_t vrf_id)
{
	struct timeval r;
	struct prefix p;
	enum zapi_route_notify_owner note;
	uint32_t table;

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

	switch (note) {
	case ZAPI_ROUTE_INSTALLED:
		sg.r.installed_routes++;
		if (sg.r.total_routes == sg.r.installed_routes) {
			monotime(&sg.r.t_end);
			timersub(&sg.r.t_end, &sg.r.t_start, &r);
			zlog_debug("Installed All Items %ld.%ld", r.tv_sec,
				   r.tv_usec);
			handle_repeated(true);
		}
		break;
	case ZAPI_ROUTE_FAIL_INSTALL:
		zlog_debug("Failed install of route");
		break;
	case ZAPI_ROUTE_BETTER_ADMIN_WON:
		zlog_debug("Better Admin Distance won over us");
		break;
	case ZAPI_ROUTE_REMOVED:
		sg.r.removed_routes++;
		if (sg.r.total_routes == sg.r.removed_routes) {
			monotime(&sg.r.t_end);
			timersub(&sg.r.t_end, &sg.r.t_start, &r);
			zlog_debug("Removed all Items %ld.%ld", r.tv_sec,
				   r.tv_usec);
			handle_repeated(false);
		}
		break;
	case ZAPI_ROUTE_REMOVE_FAIL:
		zlog_debug("Route removal Failure");
		break;
	}
	return 0;
}

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

void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
{
	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
}

void route_add(struct prefix *p, vrf_id_t vrf_id,
	       uint8_t instance, struct nexthop_group *nhg)
{
	struct zapi_route api;
	struct zapi_nexthop *api_nh;
	struct nexthop *nh;
	int i = 0;

	memset(&api, 0, sizeof(api));
	api.vrf_id = vrf_id;
	api.type = ZEBRA_ROUTE_SHARP;
	api.instance = instance;
	api.safi = SAFI_UNICAST;
	memcpy(&api.prefix, p, sizeof(*p));

	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);

	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
		api_nh = &api.nexthops[i];
		api_nh->vrf_id = nh->vrf_id;
		api_nh->type = nh->type;
		switch (nh->type) {
		case NEXTHOP_TYPE_IPV4:
			api_nh->gate = nh->gate;
			break;
		case NEXTHOP_TYPE_IPV4_IFINDEX:
			api_nh->gate = nh->gate;
			api_nh->ifindex = nh->ifindex;
			break;
		case NEXTHOP_TYPE_IFINDEX:
			api_nh->ifindex = nh->ifindex;
			break;
		case NEXTHOP_TYPE_IPV6:
			memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
			break;
		case NEXTHOP_TYPE_IPV6_IFINDEX:
			api_nh->ifindex = nh->ifindex;
			memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
			break;
		case NEXTHOP_TYPE_BLACKHOLE:
			api_nh->bh_type = nh->bh_type;
			break;
		}
		i++;
	}
	api.nexthop_num = i;

	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
}

void route_delete(struct prefix *p, vrf_id_t vrf_id, uint8_t instance)
{
	struct zapi_route api;

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

	return;
}

void sharp_zebra_nexthop_watch(struct prefix *p, vrf_id_t vrf_id, bool import,
			       bool watch, bool connected)
{
	int command;

	if (!import) {
		command = ZEBRA_NEXTHOP_REGISTER;

		if (!watch)
			command = ZEBRA_NEXTHOP_UNREGISTER;
	} else {
		command = ZEBRA_IMPORT_ROUTE_REGISTER;

		if (!watch)
			command = ZEBRA_IMPORT_ROUTE_UNREGISTER;
	}

	if (zclient_send_rnh(zclient, command, p, connected, vrf_id) < 0)
		zlog_warn("%s: Failure to send nexthop to zebra",
			  __PRETTY_FUNCTION__);
}

static int sharp_nexthop_update(int command, struct zclient *zclient,
				zebra_size_t length, vrf_id_t vrf_id)
{
	struct sharp_nh_tracker *nht;
	struct zapi_route nhr;
	char buf[PREFIX_STRLEN];
	int i;

	if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) {
		zlog_warn("%s: Decode of update failed", __PRETTY_FUNCTION__);

		return 0;
	}

	zlog_debug("Received update for %s",
		   prefix2str(&nhr.prefix, buf, sizeof(buf)));

	nht = sharp_nh_tracker_get(&nhr.prefix);
	nht->nhop_num = nhr.nexthop_num;
	nht->updates++;

	for (i = 0; i < nhr.nexthop_num; i++) {
		struct zapi_nexthop *znh = &nhr.nexthops[i];

		switch (znh->type) {
		case NEXTHOP_TYPE_IPV4_IFINDEX:
		case NEXTHOP_TYPE_IPV4:
			zlog_debug(
				"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
				inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
					  sizeof(buf)),
				znh->type, znh->ifindex, znh->vrf_id,
				znh->label_num);
			break;
		case NEXTHOP_TYPE_IPV6_IFINDEX:
		case NEXTHOP_TYPE_IPV6:
			zlog_debug(
				"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
				inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
					  sizeof(buf)),
				znh->type, znh->ifindex, znh->vrf_id,
				znh->label_num);
			break;
		case NEXTHOP_TYPE_IFINDEX:
			zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
				   znh->type, znh->ifindex);
			break;
		case NEXTHOP_TYPE_BLACKHOLE:
			zlog_debug("\tNexthop blackhole");
			break;
		}
	}
	return 0;
}

extern struct zebra_privs_t sharp_privs;

void sharp_zebra_init(void)
{
	struct zclient_options opt = {.receive_notify = true};

	zclient = zclient_new(master, &opt);

	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	zclient->zebra_connected = zebra_connected;
	zclient->interface_add = interface_add;
	zclient->interface_delete = interface_delete;
	zclient->interface_up = interface_state_up;
	zclient->interface_down = interface_state_down;
	zclient->interface_address_add = interface_address_add;
	zclient->interface_address_delete = interface_address_delete;
	zclient->route_notify_owner = route_notify_owner;
	zclient->nexthop_update = sharp_nexthop_update;
	zclient->import_check_update = sharp_nexthop_update;
}
Commit	Line	Data
8a71d93d DS	1	/*
	2	* Zebra connect code.
	3	* Copyright (C) Cumulus Networks, Inc.
	4	* Donald Sharp
	5	*
	6	* This file is part of FRR.
	7	*
	8	* FRR is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2, or (at your option) any
	11	* later version.
	12	*
	13	* FRR is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; see the file COPYING; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	21	*/
	22	#include <zebra.h>
	23
	24	#include "thread.h"
	25	#include "command.h"
	26	#include "network.h"
	27	#include "prefix.h"
	28	#include "routemap.h"
	29	#include "table.h"
	30	#include "stream.h"
	31	#include "memory.h"
	32	#include "zclient.h"
	33	#include "filter.h"
	34	#include "plist.h"
	35	#include "log.h"
	36	#include "nexthop.h"
694b242f	37	#include "nexthop_group.h"
8a71d93d	38
547dc642	39	#include "sharp_globals.h"
86da53ab	40	#include "sharp_nht.h"
8a71d93d DS	41	#include "sharp_zebra.h"
	42
	43	/* Zebra structure to hold current status. */
	44	struct zclient *zclient = NULL;
	45
	46	/* For registering threads. */
	47	extern struct thread_master *master;
	48
	49	static struct interface zebra_interface_if_lookup(struct stream s)
	50	{
	51	char ifname_tmp[INTERFACE_NAMSIZ];
	52
	53	/* Read interface name. */
	54	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
	55
	56	/* And look it up. */
	57	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
	58	}
	59
	60	/* Inteface addition message from zebra. */
	61	static int interface_add(int command, struct zclient *zclient,
996c9314	62	zebra_size_t length, vrf_id_t vrf_id)
8a71d93d DS	63	{
	64	struct interface *ifp;
	65
	66	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
	67
	68	if (!ifp->info)
	69	return 0;
	70
	71	return 0;
	72	}
	73
	74	static int interface_delete(int command, struct zclient *zclient,
	75	zebra_size_t length, vrf_id_t vrf_id)
	76	{
	77	struct interface *ifp;
	78	struct stream *s;
	79
	80	s = zclient->ibuf;
	81	/* zebra_interface_state_read () updates interface structure in iflist
	82	*/
	83	ifp = zebra_interface_state_read(s, vrf_id);
	84
	85	if (ifp == NULL)
	86	return 0;
	87
	88	if_set_index(ifp, IFINDEX_INTERNAL);
	89
	90	return 0;
	91	}
	92
	93	static int interface_address_add(int command, struct zclient *zclient,
	94	zebra_size_t length, vrf_id_t vrf_id)
	95	{
	96
	97	zebra_interface_address_read(command, zclient->ibuf, vrf_id);
	98
	99	return 0;
	100	}
	101
	102	static int interface_address_delete(int command, struct zclient *zclient,
	103	zebra_size_t length, vrf_id_t vrf_id)
	104	{
	105	struct connected *c;
	106
	107	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
	108
	109	if (!c)
	110	return 0;
	111
	112	connected_free(c);
	113	return 0;
	114	}
	115
	116	static int interface_state_up(int command, struct zclient *zclient,
	117	zebra_size_t length, vrf_id_t vrf_id)
	118	{
	119
	120	zebra_interface_if_lookup(zclient->ibuf);
	121
	122	return 0;
	123	}
	124
	125	static int interface_state_down(int command, struct zclient *zclient,
	126	zebra_size_t length, vrf_id_t vrf_id)
127	{
128
129	zebra_interface_state_read(zclient->ibuf, vrf_id);
130
131	return 0;
132	}
133
0cf08685 DS	134	void sharp_install_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	135	uint8_t instance, struct nexthop_group *nhg,
6b98d34f DS	136	uint32_t routes)
	137	{
	138	uint32_t temp, i;
dbc1bf46	139	bool v4 = false;
6b98d34f DS	140
	141	zlog_debug("Inserting %u routes", routes);
	142
dbc1bf46 DS	143	if (p->family == AF_INET) {
	144	v4 = true;
	145	temp = ntohl(p->u.prefix4.s_addr);
	146	} else
	147	temp = ntohl(p->u.val32[3]);
	148
547dc642	149	monotime(&sg.r.t_start);
6b98d34f	150	for (i = 0; i < routes; i++) {
0cf08685	151	route_add(p, vrf_id, (uint8_t)instance, nhg);
dbc1bf46 DS	152	if (v4)
	153	p->u.prefix4.s_addr = htonl(++temp);
	154	else
	155	p->u.val32[3] = htonl(++temp);
6b98d34f DS	156	}
	157	}
	158
0cf08685 DS	159	void sharp_remove_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	160	uint8_t instance, uint32_t routes)
6b98d34f DS	161	{
6b98d34f DS	162	uint32_t temp, i;
dbc1bf46	163	bool v4 = false;
6b98d34f DS	164
	165	zlog_debug("Removing %u routes", routes);
	166
dbc1bf46 DS	167	if (p->family == AF_INET) {
	168	v4 = true;
	169	temp = ntohl(p->u.prefix4.s_addr);
	170	} else
	171	temp = ntohl(p->u.val32[3]);
	172
547dc642	173	monotime(&sg.r.t_start);
6b98d34f	174	for (i = 0; i < routes; i++) {
0cf08685	175	route_delete(p, vrf_id, (uint8_t)instance);
dbc1bf46 DS	176	if (v4)
	177	p->u.prefix4.s_addr = htonl(++temp);
	178	else
	179	p->u.val32[3] = htonl(++temp);
6b98d34f DS	180	}
	181	}
	182
b939f6ff	183	static void handle_repeated(bool installed)
6b98d34f	184	{
547dc642 DS	185	struct prefix p = sg.r.orig_prefix;
547dc642 DS	186	sg.r.repeat--;
6b98d34f	187
547dc642	188	if (sg.r.repeat <= 0)
6b98d34f DS	189	return;
	190
	191	if (installed) {
547dc642	192	sg.r.removed_routes = 0;
0cf08685 DS	193	sharp_remove_routes_helper(&p, sg.r.vrf_id,
0cf08685 DS	194	sg.r.inst, sg.r.total_routes);
6b98d34f DS	195	}
6b98d34f DS	196
547dc642 DS	197	if (installed) {
547dc642 DS	198	sg.r.installed_routes = 0;
0cf08685 DS	199	sharp_install_routes_helper(&p, sg.r.vrf_id, sg.r.inst,
0cf08685 DS	200	&sg.r.nhop_group,
547dc642	201	sg.r.total_routes);
6b98d34f DS	202	}
	203	}
	204
28b11f81 DS	205	static int route_notify_owner(int command, struct zclient *zclient,
28b11f81 DS	206	zebra_size_t length, vrf_id_t vrf_id)
8a71d93d	207	{
25c84d86	208	struct timeval r;
8a71d93d DS	209	struct prefix p;
8a71d93d DS	210	enum zapi_route_notify_owner note;
28610f7e	211	uint32_t table;
8a71d93d	212
28610f7e	213	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
8a71d93d DS	214	return -1;
8a71d93d DS	215
5e54c602 DS	216	switch (note) {
5e54c602 DS	217	case ZAPI_ROUTE_INSTALLED:
547dc642 DS	218	sg.r.installed_routes++;
	219	if (sg.r.total_routes == sg.r.installed_routes) {
	220	monotime(&sg.r.t_end);
	221	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	222	zlog_debug("Installed All Items %ld.%ld", r.tv_sec,
25c84d86 DS	223	r.tv_usec);
6b98d34f DS	224	handle_repeated(true);
6b98d34f DS	225	}
5e54c602 DS	226	break;
	227	case ZAPI_ROUTE_FAIL_INSTALL:
	228	zlog_debug("Failed install of route");
	229	break;
	230	case ZAPI_ROUTE_BETTER_ADMIN_WON:
	231	zlog_debug("Better Admin Distance won over us");
	232	break;
	233	case ZAPI_ROUTE_REMOVED:
547dc642 DS	234	sg.r.removed_routes++;
	235	if (sg.r.total_routes == sg.r.removed_routes) {
	236	monotime(&sg.r.t_end);
	237	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	238	zlog_debug("Removed all Items %ld.%ld", r.tv_sec,
25c84d86 DS	239	r.tv_usec);
6b98d34f DS	240	handle_repeated(false);
6b98d34f DS	241	}
5e54c602 DS	242	break;
	243	case ZAPI_ROUTE_REMOVE_FAIL:
	244	zlog_debug("Route removal Failure");
	245	break;
	246	}
8a71d93d DS	247	return 0;
	248	}
	249
	250	static void zebra_connected(struct zclient *zclient)
	251	{
	252	zclient_send_reg_requests(zclient, VRF_DEFAULT);
	253	}
	254
7d061b3c	255	void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
ab18a495	256	{
7d061b3c	257	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
ab18a495 DS	258	}
ab18a495 DS	259
0cf08685 DS	260	void route_add(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	261	uint8_t instance, struct nexthop_group *nhg)
8a71d93d DS	262	{
	263	struct zapi_route api;
	264	struct zapi_nexthop *api_nh;
694b242f DS	265	struct nexthop *nh;
694b242f DS	266	int i = 0;
8a71d93d DS	267
8a71d93d DS	268	memset(&api, 0, sizeof(api));
0cf08685	269	api.vrf_id = vrf_id;
8a71d93d	270	api.type = ZEBRA_ROUTE_SHARP;
ae252c02	271	api.instance = instance;
8a71d93d DS	272	api.safi = SAFI_UNICAST;
	273	memcpy(&api.prefix, p, sizeof(*p));
	274
a3896844	275	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
8a71d93d DS	276	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
8a71d93d DS	277
694b242f DS	278	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
694b242f DS	279	api_nh = &api.nexthops[i];
0cf08685	280	api_nh->vrf_id = nh->vrf_id;
694b242f DS	281	api_nh->type = nh->type;
	282	switch (nh->type) {
	283	case NEXTHOP_TYPE_IPV4:
	284	api_nh->gate = nh->gate;
	285	break;
	286	case NEXTHOP_TYPE_IPV4_IFINDEX:
	287	api_nh->gate = nh->gate;
	288	api_nh->ifindex = nh->ifindex;
	289	break;
	290	case NEXTHOP_TYPE_IFINDEX:
	291	api_nh->ifindex = nh->ifindex;
	292	break;
	293	case NEXTHOP_TYPE_IPV6:
	294	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	295	break;
	296	case NEXTHOP_TYPE_IPV6_IFINDEX:
	297	api_nh->ifindex = nh->ifindex;
	298	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	299	break;
	300	case NEXTHOP_TYPE_BLACKHOLE:
	301	api_nh->bh_type = nh->bh_type;
	302	break;
	303	}
	304	i++;
	305	}
	306	api.nexthop_num = i;
8a71d93d DS	307
	308	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
	309	}
	310
0cf08685	311	void route_delete(struct prefix *p, vrf_id_t vrf_id, uint8_t instance)
8a71d93d DS	312	{
	313	struct zapi_route api;
	314
	315	memset(&api, 0, sizeof(api));
0cf08685	316	api.vrf_id = vrf_id;
8a71d93d DS	317	api.type = ZEBRA_ROUTE_SHARP;
8a71d93d DS	318	api.safi = SAFI_UNICAST;
ae252c02	319	api.instance = instance;
8a71d93d DS	320	memcpy(&api.prefix, p, sizeof(*p));
	321	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
	322
	323	return;
	324	}
	325
91529dc8	326	void sharp_zebra_nexthop_watch(struct prefix *p, vrf_id_t vrf_id, bool import,
b47dc61a	327	bool watch, bool connected)
0ae8130d	328	{
b47dc61a	329	int command;
0ae8130d	330
b47dc61a DS	331	if (!import) {
	332	command = ZEBRA_NEXTHOP_REGISTER;
	333
	334	if (!watch)
	335	command = ZEBRA_NEXTHOP_UNREGISTER;
	336	} else {
	337	command = ZEBRA_IMPORT_ROUTE_REGISTER;
	338
	339	if (!watch)
	340	command = ZEBRA_IMPORT_ROUTE_UNREGISTER;
	341	}
0ae8130d	342
91529dc8	343	if (zclient_send_rnh(zclient, command, p, connected, vrf_id) < 0)
b3beaea0 A	344	zlog_warn("%s: Failure to send nexthop to zebra",
b3beaea0 A	345	__PRETTY_FUNCTION__);
0ae8130d DS	346	}
	347
	348	static int sharp_nexthop_update(int command, struct zclient *zclient,
	349	zebra_size_t length, vrf_id_t vrf_id)
	350	{
86da53ab	351	struct sharp_nh_tracker *nht;
0ae8130d DS	352	struct zapi_route nhr;
	353	char buf[PREFIX_STRLEN];
	354	int i;
	355
	356	if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) {
	357	zlog_warn("%s: Decode of update failed", __PRETTY_FUNCTION__);
	358
	359	return 0;
	360	}
	361
	362	zlog_debug("Received update for %s",
	363	prefix2str(&nhr.prefix, buf, sizeof(buf)));
86da53ab DS	364
	365	nht = sharp_nh_tracker_get(&nhr.prefix);
	366	nht->nhop_num = nhr.nexthop_num;
	367	nht->updates++;
	368
0ae8130d DS	369	for (i = 0; i < nhr.nexthop_num; i++) {
	370	struct zapi_nexthop *znh = &nhr.nexthops[i];
	371
	372	switch (znh->type) {
	373	case NEXTHOP_TYPE_IPV4_IFINDEX:
	374	case NEXTHOP_TYPE_IPV4:
	375	zlog_debug(
	376	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	377	inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
	378	sizeof(buf)),
	379	znh->type, znh->ifindex, znh->vrf_id,
	380	znh->label_num);
	381	break;
	382	case NEXTHOP_TYPE_IPV6_IFINDEX:
	383	case NEXTHOP_TYPE_IPV6:
	384	zlog_debug(
	385	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	386	inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
	387	sizeof(buf)),
	388	znh->type, znh->ifindex, znh->vrf_id,
	389	znh->label_num);
	390	break;
	391	case NEXTHOP_TYPE_IFINDEX:
	392	zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
	393	znh->type, znh->ifindex);
	394	break;
	395	case NEXTHOP_TYPE_BLACKHOLE:
	396	zlog_debug("\tNexthop blackhole");
	397	break;
	398	}
	399	}
	400	return 0;
	401	}
	402
8a71d93d DS	403	extern struct zebra_privs_t sharp_privs;
	404
	405	void sharp_zebra_init(void)
	406	{
996c9314	407	struct zclient_options opt = {.receive_notify = true};
8a71d93d	408
26f63a1e	409	zclient = zclient_new(master, &opt);
8a71d93d DS	410
	411	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	412	zclient->zebra_connected = zebra_connected;
	413	zclient->interface_add = interface_add;
	414	zclient->interface_delete = interface_delete;
	415	zclient->interface_up = interface_state_up;
	416	zclient->interface_down = interface_state_down;
	417	zclient->interface_address_add = interface_address_add;
	418	zclient->interface_address_delete = interface_address_delete;
28b11f81	419	zclient->route_notify_owner = route_notify_owner;
0ae8130d	420	zclient->nexthop_update = sharp_nexthop_update;
b47dc61a	421	zclient->import_check_update = sharp_nexthop_update;
8a71d93d	422	}