[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_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, 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, (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, 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, (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.inst, sg.r.total_routes);
	}

	if (installed) {
		sg.r.installed_routes = 0;
		sharp_install_routes_helper(&p, 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, 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_DEFAULT;
	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 = VRF_DEFAULT;
		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, uint8_t instance)
{
	struct zapi_route api;

	memset(&api, 0, sizeof(api));
	api.vrf_id = VRF_DEFAULT;
	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, bool watch, bool connected)
{
	int command = ZEBRA_NEXTHOP_REGISTER;

	if (!watch)
		command = ZEBRA_NEXTHOP_UNREGISTER;

	if (zclient_send_rnh(zclient, command, p, connected, VRF_DEFAULT) < 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 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)));
	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;
}
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"
8a71d93d DS	40	#include "sharp_zebra.h"
	41
	42	/* Zebra structure to hold current status. */
	43	struct zclient *zclient = NULL;
	44
	45	/* For registering threads. */
	46	extern struct thread_master *master;
	47
	48	static struct interface zebra_interface_if_lookup(struct stream s)
	49	{
	50	char ifname_tmp[INTERFACE_NAMSIZ];
	51
	52	/* Read interface name. */
	53	stream_get(ifname_tmp, s, INTERFACE_NAMSIZ);
	54
	55	/* And look it up. */
	56	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
	57	}
	58
	59	/* Inteface addition message from zebra. */
	60	static int interface_add(int command, struct zclient *zclient,
996c9314	61	zebra_size_t length, vrf_id_t vrf_id)
8a71d93d DS	62	{
	63	struct interface *ifp;
	64
	65	ifp = zebra_interface_add_read(zclient->ibuf, vrf_id);
	66
	67	if (!ifp->info)
	68	return 0;
	69
	70	return 0;
	71	}
	72
	73	static int interface_delete(int command, struct zclient *zclient,
	74	zebra_size_t length, vrf_id_t vrf_id)
	75	{
	76	struct interface *ifp;
	77	struct stream *s;
	78
	79	s = zclient->ibuf;
	80	/* zebra_interface_state_read () updates interface structure in iflist
	81	*/
	82	ifp = zebra_interface_state_read(s, vrf_id);
	83
	84	if (ifp == NULL)
	85	return 0;
	86
	87	if_set_index(ifp, IFINDEX_INTERNAL);
	88
	89	return 0;
	90	}
	91
	92	static int interface_address_add(int command, struct zclient *zclient,
	93	zebra_size_t length, vrf_id_t vrf_id)
	94	{
	95
	96	zebra_interface_address_read(command, zclient->ibuf, vrf_id);
	97
	98	return 0;
	99	}
	100
	101	static int interface_address_delete(int command, struct zclient *zclient,
	102	zebra_size_t length, vrf_id_t vrf_id)
	103	{
	104	struct connected *c;
	105
	106	c = zebra_interface_address_read(command, zclient->ibuf, vrf_id);
	107
	108	if (!c)
	109	return 0;
	110
	111	connected_free(c);
	112	return 0;
	113	}
	114
	115	static int interface_state_up(int command, struct zclient *zclient,
	116	zebra_size_t length, vrf_id_t vrf_id)
	117	{
	118
	119	zebra_interface_if_lookup(zclient->ibuf);
	120
	121	return 0;
	122	}
	123
	124	static int interface_state_down(int command, struct zclient *zclient,
	125	zebra_size_t length, vrf_id_t vrf_id)
126	{
127
128	zebra_interface_state_read(zclient->ibuf, vrf_id);
129
130	return 0;
131	}
132
6b98d34f DS	133	void sharp_install_routes_helper(struct prefix *p, uint8_t instance,
	134	struct nexthop_group *nhg,
	135	uint32_t routes)
	136	{
	137	uint32_t temp, i;
dbc1bf46	138	bool v4 = false;
6b98d34f DS	139
	140	zlog_debug("Inserting %u routes", routes);
	141
dbc1bf46 DS	142	if (p->family == AF_INET) {
	143	v4 = true;
	144	temp = ntohl(p->u.prefix4.s_addr);
	145	} else
	146	temp = ntohl(p->u.val32[3]);
	147
547dc642	148	monotime(&sg.r.t_start);
6b98d34f DS	149	for (i = 0; i < routes; i++) {
6b98d34f DS	150	route_add(p, (uint8_t)instance, nhg);
dbc1bf46 DS	151	if (v4)
	152	p->u.prefix4.s_addr = htonl(++temp);
	153	else
	154	p->u.val32[3] = htonl(++temp);
6b98d34f DS	155	}
	156	}
	157
	158	void sharp_remove_routes_helper(struct prefix *p, uint8_t instance,
	159	uint32_t routes)
	160	{
	161	uint32_t temp, i;
dbc1bf46	162	bool v4 = false;
6b98d34f DS	163
	164	zlog_debug("Removing %u routes", routes);
	165
dbc1bf46 DS	166	if (p->family == AF_INET) {
	167	v4 = true;
	168	temp = ntohl(p->u.prefix4.s_addr);
	169	} else
	170	temp = ntohl(p->u.val32[3]);
	171
547dc642	172	monotime(&sg.r.t_start);
6b98d34f DS	173	for (i = 0; i < routes; i++) {
6b98d34f DS	174	route_delete(p, (uint8_t)instance);
dbc1bf46 DS	175	if (v4)
	176	p->u.prefix4.s_addr = htonl(++temp);
	177	else
	178	p->u.val32[3] = htonl(++temp);
6b98d34f DS	179	}
	180	}
	181
b939f6ff	182	static void handle_repeated(bool installed)
6b98d34f	183	{
547dc642 DS	184	struct prefix p = sg.r.orig_prefix;
547dc642 DS	185	sg.r.repeat--;
6b98d34f	186
547dc642	187	if (sg.r.repeat <= 0)
6b98d34f DS	188	return;
	189
	190	if (installed) {
547dc642 DS	191	sg.r.removed_routes = 0;
547dc642 DS	192	sharp_remove_routes_helper(&p, sg.r.inst, sg.r.total_routes);
6b98d34f DS	193	}
6b98d34f DS	194
547dc642 DS	195	if (installed) {
	196	sg.r.installed_routes = 0;
	197	sharp_install_routes_helper(&p, sg.r.inst, &sg.r.nhop_group,
	198	sg.r.total_routes);
6b98d34f DS	199	}
	200	}
	201
28b11f81 DS	202	static int route_notify_owner(int command, struct zclient *zclient,
28b11f81 DS	203	zebra_size_t length, vrf_id_t vrf_id)
8a71d93d	204	{
25c84d86	205	struct timeval r;
8a71d93d DS	206	struct prefix p;
8a71d93d DS	207	enum zapi_route_notify_owner note;
28610f7e	208	uint32_t table;
8a71d93d	209
28610f7e	210	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
8a71d93d DS	211	return -1;
8a71d93d DS	212
5e54c602 DS	213	switch (note) {
5e54c602 DS	214	case ZAPI_ROUTE_INSTALLED:
547dc642 DS	215	sg.r.installed_routes++;
	216	if (sg.r.total_routes == sg.r.installed_routes) {
	217	monotime(&sg.r.t_end);
	218	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	219	zlog_debug("Installed All Items %ld.%ld", r.tv_sec,
25c84d86 DS	220	r.tv_usec);
6b98d34f DS	221	handle_repeated(true);
6b98d34f DS	222	}
5e54c602 DS	223	break;
	224	case ZAPI_ROUTE_FAIL_INSTALL:
	225	zlog_debug("Failed install of route");
	226	break;
	227	case ZAPI_ROUTE_BETTER_ADMIN_WON:
	228	zlog_debug("Better Admin Distance won over us");
	229	break;
	230	case ZAPI_ROUTE_REMOVED:
547dc642 DS	231	sg.r.removed_routes++;
	232	if (sg.r.total_routes == sg.r.removed_routes) {
	233	monotime(&sg.r.t_end);
	234	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	235	zlog_debug("Removed all Items %ld.%ld", r.tv_sec,
25c84d86 DS	236	r.tv_usec);
6b98d34f DS	237	handle_repeated(false);
6b98d34f DS	238	}
5e54c602 DS	239	break;
	240	case ZAPI_ROUTE_REMOVE_FAIL:
	241	zlog_debug("Route removal Failure");
	242	break;
	243	}
8a71d93d DS	244	return 0;
	245	}
	246
	247	static void zebra_connected(struct zclient *zclient)
	248	{
	249	zclient_send_reg_requests(zclient, VRF_DEFAULT);
	250	}
	251
7d061b3c	252	void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
ab18a495	253	{
7d061b3c	254	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
ab18a495 DS	255	}
ab18a495 DS	256
694b242f	257	void route_add(struct prefix p, uint8_t instance, struct nexthop_group nhg)
8a71d93d DS	258	{
	259	struct zapi_route api;
	260	struct zapi_nexthop *api_nh;
694b242f DS	261	struct nexthop *nh;
694b242f DS	262	int i = 0;
8a71d93d DS	263
	264	memset(&api, 0, sizeof(api));
	265	api.vrf_id = VRF_DEFAULT;
	266	api.type = ZEBRA_ROUTE_SHARP;
ae252c02	267	api.instance = instance;
8a71d93d DS	268	api.safi = SAFI_UNICAST;
	269	memcpy(&api.prefix, p, sizeof(*p));
	270
a3896844	271	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
8a71d93d DS	272	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
8a71d93d DS	273
694b242f DS	274	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
	275	api_nh = &api.nexthops[i];
	276	api_nh->vrf_id = VRF_DEFAULT;
	277	api_nh->type = nh->type;
	278	switch (nh->type) {
	279	case NEXTHOP_TYPE_IPV4:
	280	api_nh->gate = nh->gate;
	281	break;
	282	case NEXTHOP_TYPE_IPV4_IFINDEX:
	283	api_nh->gate = nh->gate;
	284	api_nh->ifindex = nh->ifindex;
	285	break;
	286	case NEXTHOP_TYPE_IFINDEX:
	287	api_nh->ifindex = nh->ifindex;
	288	break;
	289	case NEXTHOP_TYPE_IPV6:
	290	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	291	break;
	292	case NEXTHOP_TYPE_IPV6_IFINDEX:
	293	api_nh->ifindex = nh->ifindex;
	294	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	295	break;
	296	case NEXTHOP_TYPE_BLACKHOLE:
	297	api_nh->bh_type = nh->bh_type;
	298	break;
	299	}
	300	i++;
	301	}
	302	api.nexthop_num = i;
8a71d93d DS	303
	304	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
	305	}
	306
ae252c02	307	void route_delete(struct prefix *p, uint8_t instance)
8a71d93d DS	308	{
	309	struct zapi_route api;
	310
	311	memset(&api, 0, sizeof(api));
	312	api.vrf_id = VRF_DEFAULT;
	313	api.type = ZEBRA_ROUTE_SHARP;
	314	api.safi = SAFI_UNICAST;
ae252c02	315	api.instance = instance;
8a71d93d DS	316	memcpy(&api.prefix, p, sizeof(*p));
	317	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
	318
	319	return;
	320	}
	321
a60ffbc9	322	void sharp_zebra_nexthop_watch(struct prefix *p, bool watch, bool connected)
0ae8130d DS	323	{
	324	int command = ZEBRA_NEXTHOP_REGISTER;
	325
	326	if (!watch)
	327	command = ZEBRA_NEXTHOP_UNREGISTER;
	328
a60ffbc9	329	if (zclient_send_rnh(zclient, command, p, connected, VRF_DEFAULT) < 0)
b3beaea0 A	330	zlog_warn("%s: Failure to send nexthop to zebra",
b3beaea0 A	331	__PRETTY_FUNCTION__);
0ae8130d DS	332	}
	333
	334	static int sharp_nexthop_update(int command, struct zclient *zclient,
	335	zebra_size_t length, vrf_id_t vrf_id)
	336	{
	337	struct zapi_route nhr;
	338	char buf[PREFIX_STRLEN];
	339	int i;
	340
	341	if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) {
	342	zlog_warn("%s: Decode of update failed", __PRETTY_FUNCTION__);
	343
	344	return 0;
	345	}
	346
	347	zlog_debug("Received update for %s",
	348	prefix2str(&nhr.prefix, buf, sizeof(buf)));
	349	for (i = 0; i < nhr.nexthop_num; i++) {
	350	struct zapi_nexthop *znh = &nhr.nexthops[i];
	351
	352	switch (znh->type) {
	353	case NEXTHOP_TYPE_IPV4_IFINDEX:
	354	case NEXTHOP_TYPE_IPV4:
	355	zlog_debug(
	356	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	357	inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
	358	sizeof(buf)),
	359	znh->type, znh->ifindex, znh->vrf_id,
	360	znh->label_num);
	361	break;
	362	case NEXTHOP_TYPE_IPV6_IFINDEX:
	363	case NEXTHOP_TYPE_IPV6:
	364	zlog_debug(
	365	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	366	inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
	367	sizeof(buf)),
	368	znh->type, znh->ifindex, znh->vrf_id,
	369	znh->label_num);
	370	break;
	371	case NEXTHOP_TYPE_IFINDEX:
	372	zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
	373	znh->type, znh->ifindex);
	374	break;
	375	case NEXTHOP_TYPE_BLACKHOLE:
	376	zlog_debug("\tNexthop blackhole");
	377	break;
	378	}
	379	}
	380	return 0;
	381	}
	382
8a71d93d DS	383	extern struct zebra_privs_t sharp_privs;
	384
	385	void sharp_zebra_init(void)
	386	{
996c9314	387	struct zclient_options opt = {.receive_notify = true};
8a71d93d	388
26f63a1e	389	zclient = zclient_new(master, &opt);
8a71d93d DS	390
	391	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	392	zclient->zebra_connected = zebra_connected;
	393	zclient->interface_add = interface_add;
	394	zclient->interface_delete = interface_delete;
	395	zclient->interface_up = interface_state_up;
	396	zclient->interface_down = interface_state_down;
	397	zclient->interface_address_add = interface_address_add;
	398	zclient->interface_address_delete = interface_address_delete;
28b11f81	399	zclient->route_notify_owner = route_notify_owner;
0ae8130d	400	zclient->nexthop_update = sharp_nexthop_update;
8a71d93d	401	}