[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 sharp_ifp_create(struct interface *ifp)
{
	return 0;
}

static int interface_delete(ZAPI_CALLBACK_ARGS)
{
	struct interface *ifp;
	struct stream *s;

	s = zclient->ibuf;
	/* zebra_interface_state_read () updates interface structure in iflist
	 */
	ifp = zebra_interface_state_read(s, vrf_id);

	if (ifp == NULL)
		return 0;

	if_set_index(ifp, IFINDEX_INTERNAL);

	return 0;
}

static int interface_address_add(ZAPI_CALLBACK_ARGS)
{

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

	return 0;
}

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

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

	if (!c)
		return 0;

	connected_free(c);
	return 0;
}

static int interface_state_up(ZAPI_CALLBACK_ARGS)
{

	zebra_interface_if_lookup(zclient->ibuf);

	return 0;
}

static int interface_state_down(ZAPI_CALLBACK_ARGS)
{

	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(ZAPI_CALLBACK_ARGS)
{
	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 %jd.%ld",
				   (intmax_t)r.tv_sec, (long)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 %jd.%ld",
				   (intmax_t)r.tv_sec, (long)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(ZAPI_CALLBACK_ARGS)
{
	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;
}

static int sharp_ifp_up(struct interface *ifp)
{
	return 0;
}

static int sharp_ifp_down(struct interface *ifp)
{
	return 0;
}

static int sharp_ifp_destroy(struct interface *ifp)
{
	return 0;
}

extern struct zebra_privs_t sharp_privs;

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

	if_zapi_callbacks(sharp_ifp_create, sharp_ifp_up,
			  sharp_ifp_down, sharp_ifp_destroy);

	zclient = zclient_new(master, &opt);

	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	zclient->zebra_connected = zebra_connected;
	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
a36898e7	49	static struct interface zebra_interface_if_lookup(struct stream s)
8a71d93d DS	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. */
a36898e7	57	return if_lookup_by_name(ifname_tmp, VRF_DEFAULT);
8a71d93d DS	58	}
	59
	60	/* Inteface addition message from zebra. */
ef7bd2a3	61	static int sharp_ifp_create(struct interface *ifp)
8a71d93d	62	{
8a71d93d DS	63	return 0;
	64	}
	65
121f9dee	66	static int interface_delete(ZAPI_CALLBACK_ARGS)
8a71d93d DS	67	{
	68	struct interface *ifp;
	69	struct stream *s;
	70
	71	s = zclient->ibuf;
	72	/* zebra_interface_state_read () updates interface structure in iflist
	73	*/
	74	ifp = zebra_interface_state_read(s, vrf_id);
	75
	76	if (ifp == NULL)
	77	return 0;
	78
	79	if_set_index(ifp, IFINDEX_INTERNAL);
	80
	81	return 0;
	82	}
	83
121f9dee	84	static int interface_address_add(ZAPI_CALLBACK_ARGS)
8a71d93d DS	85	{
8a71d93d DS	86
121f9dee	87	zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
8a71d93d DS	88
	89	return 0;
	90	}
	91
121f9dee	92	static int interface_address_delete(ZAPI_CALLBACK_ARGS)
8a71d93d DS	93	{
	94	struct connected *c;
	95
121f9dee	96	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
8a71d93d DS	97
	98	if (!c)
	99	return 0;
	100
	101	connected_free(c);
	102	return 0;
	103	}
	104
121f9dee	105	static int interface_state_up(ZAPI_CALLBACK_ARGS)
8a71d93d DS	106	{
8a71d93d DS	107
a36898e7	108	zebra_interface_if_lookup(zclient->ibuf);
8a71d93d DS	109
	110	return 0;
	111	}
	112
121f9dee	113	static int interface_state_down(ZAPI_CALLBACK_ARGS)
8a71d93d DS	114	{
	115
	116	zebra_interface_state_read(zclient->ibuf, vrf_id);
	117
	118	return 0;
	119	}
	120
0cf08685 DS	121	void sharp_install_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	122	uint8_t instance, struct nexthop_group *nhg,
6b98d34f DS	123	uint32_t routes)
	124	{
	125	uint32_t temp, i;
dbc1bf46	126	bool v4 = false;
6b98d34f DS	127
	128	zlog_debug("Inserting %u routes", routes);
	129
dbc1bf46 DS	130	if (p->family == AF_INET) {
	131	v4 = true;
	132	temp = ntohl(p->u.prefix4.s_addr);
	133	} else
	134	temp = ntohl(p->u.val32[3]);
	135
547dc642	136	monotime(&sg.r.t_start);
6b98d34f	137	for (i = 0; i < routes; i++) {
0cf08685	138	route_add(p, vrf_id, (uint8_t)instance, nhg);
dbc1bf46 DS	139	if (v4)
	140	p->u.prefix4.s_addr = htonl(++temp);
	141	else
	142	p->u.val32[3] = htonl(++temp);
6b98d34f DS	143	}
	144	}
	145
0cf08685 DS	146	void sharp_remove_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	147	uint8_t instance, uint32_t routes)
6b98d34f DS	148	{
6b98d34f DS	149	uint32_t temp, i;
dbc1bf46	150	bool v4 = false;
6b98d34f DS	151
	152	zlog_debug("Removing %u routes", routes);
	153
dbc1bf46 DS	154	if (p->family == AF_INET) {
	155	v4 = true;
	156	temp = ntohl(p->u.prefix4.s_addr);
	157	} else
	158	temp = ntohl(p->u.val32[3]);
	159
547dc642	160	monotime(&sg.r.t_start);
6b98d34f	161	for (i = 0; i < routes; i++) {
0cf08685	162	route_delete(p, vrf_id, (uint8_t)instance);
dbc1bf46 DS	163	if (v4)
	164	p->u.prefix4.s_addr = htonl(++temp);
	165	else
	166	p->u.val32[3] = htonl(++temp);
6b98d34f DS	167	}
	168	}
	169
b939f6ff	170	static void handle_repeated(bool installed)
6b98d34f	171	{
547dc642 DS	172	struct prefix p = sg.r.orig_prefix;
547dc642 DS	173	sg.r.repeat--;
6b98d34f	174
547dc642	175	if (sg.r.repeat <= 0)
6b98d34f DS	176	return;
	177
	178	if (installed) {
547dc642	179	sg.r.removed_routes = 0;
0cf08685 DS	180	sharp_remove_routes_helper(&p, sg.r.vrf_id,
0cf08685 DS	181	sg.r.inst, sg.r.total_routes);
6b98d34f DS	182	}
6b98d34f DS	183
f54f37c1	184	if (!installed) {
547dc642	185	sg.r.installed_routes = 0;
0cf08685 DS	186	sharp_install_routes_helper(&p, sg.r.vrf_id, sg.r.inst,
0cf08685 DS	187	&sg.r.nhop_group,
547dc642	188	sg.r.total_routes);
6b98d34f DS	189	}
	190	}
	191
121f9dee	192	static int route_notify_owner(ZAPI_CALLBACK_ARGS)
8a71d93d	193	{
25c84d86	194	struct timeval r;
8a71d93d DS	195	struct prefix p;
8a71d93d DS	196	enum zapi_route_notify_owner note;
28610f7e	197	uint32_t table;
8a71d93d	198
28610f7e	199	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
8a71d93d DS	200	return -1;
8a71d93d DS	201
5e54c602 DS	202	switch (note) {
5e54c602 DS	203	case ZAPI_ROUTE_INSTALLED:
547dc642 DS	204	sg.r.installed_routes++;
	205	if (sg.r.total_routes == sg.r.installed_routes) {
	206	monotime(&sg.r.t_end);
	207	timersub(&sg.r.t_end, &sg.r.t_start, &r);
051a0be4 DL	208	zlog_debug("Installed All Items %jd.%ld",
051a0be4 DL	209	(intmax_t)r.tv_sec, (long)r.tv_usec);
6b98d34f DS	210	handle_repeated(true);
6b98d34f DS	211	}
5e54c602 DS	212	break;
	213	case ZAPI_ROUTE_FAIL_INSTALL:
	214	zlog_debug("Failed install of route");
	215	break;
	216	case ZAPI_ROUTE_BETTER_ADMIN_WON:
	217	zlog_debug("Better Admin Distance won over us");
	218	break;
	219	case ZAPI_ROUTE_REMOVED:
547dc642 DS	220	sg.r.removed_routes++;
	221	if (sg.r.total_routes == sg.r.removed_routes) {
	222	monotime(&sg.r.t_end);
	223	timersub(&sg.r.t_end, &sg.r.t_start, &r);
051a0be4 DL	224	zlog_debug("Removed all Items %jd.%ld",
051a0be4 DL	225	(intmax_t)r.tv_sec, (long)r.tv_usec);
6b98d34f DS	226	handle_repeated(false);
6b98d34f DS	227	}
5e54c602 DS	228	break;
	229	case ZAPI_ROUTE_REMOVE_FAIL:
	230	zlog_debug("Route removal Failure");
	231	break;
	232	}
8a71d93d DS	233	return 0;
	234	}
	235
	236	static void zebra_connected(struct zclient *zclient)
	237	{
	238	zclient_send_reg_requests(zclient, VRF_DEFAULT);
	239	}
	240
7d061b3c	241	void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
ab18a495	242	{
7d061b3c	243	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
ab18a495 DS	244	}
ab18a495 DS	245
0cf08685 DS	246	void route_add(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	247	uint8_t instance, struct nexthop_group *nhg)
8a71d93d DS	248	{
	249	struct zapi_route api;
	250	struct zapi_nexthop *api_nh;
694b242f DS	251	struct nexthop *nh;
694b242f DS	252	int i = 0;
8a71d93d DS	253
8a71d93d DS	254	memset(&api, 0, sizeof(api));
0cf08685	255	api.vrf_id = vrf_id;
8a71d93d	256	api.type = ZEBRA_ROUTE_SHARP;
ae252c02	257	api.instance = instance;
8a71d93d DS	258	api.safi = SAFI_UNICAST;
	259	memcpy(&api.prefix, p, sizeof(*p));
	260
a3896844	261	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
8a71d93d DS	262	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
8a71d93d DS	263
694b242f DS	264	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
694b242f DS	265	api_nh = &api.nexthops[i];
0cf08685	266	api_nh->vrf_id = nh->vrf_id;
694b242f DS	267	api_nh->type = nh->type;
	268	switch (nh->type) {
	269	case NEXTHOP_TYPE_IPV4:
	270	api_nh->gate = nh->gate;
	271	break;
	272	case NEXTHOP_TYPE_IPV4_IFINDEX:
	273	api_nh->gate = nh->gate;
	274	api_nh->ifindex = nh->ifindex;
	275	break;
	276	case NEXTHOP_TYPE_IFINDEX:
	277	api_nh->ifindex = nh->ifindex;
	278	break;
	279	case NEXTHOP_TYPE_IPV6:
	280	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	281	break;
	282	case NEXTHOP_TYPE_IPV6_IFINDEX:
	283	api_nh->ifindex = nh->ifindex;
	284	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	285	break;
	286	case NEXTHOP_TYPE_BLACKHOLE:
	287	api_nh->bh_type = nh->bh_type;
	288	break;
	289	}
	290	i++;
	291	}
	292	api.nexthop_num = i;
8a71d93d DS	293
	294	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
	295	}
	296
0cf08685	297	void route_delete(struct prefix *p, vrf_id_t vrf_id, uint8_t instance)
8a71d93d DS	298	{
	299	struct zapi_route api;
	300
	301	memset(&api, 0, sizeof(api));
0cf08685	302	api.vrf_id = vrf_id;
8a71d93d DS	303	api.type = ZEBRA_ROUTE_SHARP;
8a71d93d DS	304	api.safi = SAFI_UNICAST;
ae252c02	305	api.instance = instance;
8a71d93d DS	306	memcpy(&api.prefix, p, sizeof(*p));
	307	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
	308
	309	return;
	310	}
	311
91529dc8	312	void sharp_zebra_nexthop_watch(struct prefix *p, vrf_id_t vrf_id, bool import,
b47dc61a	313	bool watch, bool connected)
0ae8130d	314	{
b47dc61a	315	int command;
0ae8130d	316
b47dc61a DS	317	if (!import) {
	318	command = ZEBRA_NEXTHOP_REGISTER;
	319
	320	if (!watch)
	321	command = ZEBRA_NEXTHOP_UNREGISTER;
	322	} else {
	323	command = ZEBRA_IMPORT_ROUTE_REGISTER;
	324
	325	if (!watch)
	326	command = ZEBRA_IMPORT_ROUTE_UNREGISTER;
	327	}
0ae8130d	328
91529dc8	329	if (zclient_send_rnh(zclient, command, p, connected, vrf_id) < 0)
b3beaea0 A	330	zlog_warn("%s: Failure to send nexthop to zebra",
b3beaea0 A	331	__PRETTY_FUNCTION__);
0ae8130d DS	332	}
0ae8130d DS	333
121f9dee	334	static int sharp_nexthop_update(ZAPI_CALLBACK_ARGS)
0ae8130d	335	{
86da53ab	336	struct sharp_nh_tracker *nht;
0ae8130d DS	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)));
86da53ab DS	349
	350	nht = sharp_nh_tracker_get(&nhr.prefix);
	351	nht->nhop_num = nhr.nexthop_num;
	352	nht->updates++;
	353
0ae8130d DS	354	for (i = 0; i < nhr.nexthop_num; i++) {
	355	struct zapi_nexthop *znh = &nhr.nexthops[i];
	356
	357	switch (znh->type) {
	358	case NEXTHOP_TYPE_IPV4_IFINDEX:
	359	case NEXTHOP_TYPE_IPV4:
	360	zlog_debug(
	361	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	362	inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
	363	sizeof(buf)),
	364	znh->type, znh->ifindex, znh->vrf_id,
	365	znh->label_num);
	366	break;
	367	case NEXTHOP_TYPE_IPV6_IFINDEX:
	368	case NEXTHOP_TYPE_IPV6:
	369	zlog_debug(
	370	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	371	inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
	372	sizeof(buf)),
	373	znh->type, znh->ifindex, znh->vrf_id,
	374	znh->label_num);
	375	break;
	376	case NEXTHOP_TYPE_IFINDEX:
	377	zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
	378	znh->type, znh->ifindex);
	379	break;
	380	case NEXTHOP_TYPE_BLACKHOLE:
	381	zlog_debug("\tNexthop blackhole");
	382	break;
	383	}
	384	}
	385	return 0;
	386	}
	387
138c5a74 DS	388	static int sharp_ifp_up(struct interface *ifp)
	389	{
	390	return 0;
	391	}
	392
	393	static int sharp_ifp_down(struct interface *ifp)
	394	{
	395	return 0;
	396	}
	397
	398	static int sharp_ifp_destroy(struct interface *ifp)
	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
138c5a74 DS	409	if_zapi_callbacks(sharp_ifp_create, sharp_ifp_up,
	410	sharp_ifp_down, sharp_ifp_destroy);
	411
26f63a1e	412	zclient = zclient_new(master, &opt);
8a71d93d DS	413
	414	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	415	zclient->zebra_connected = zebra_connected;
8a71d93d DS	416	zclient->interface_delete = interface_delete;
	417	zclient->interface_up = interface_state_up;
	418	zclient->interface_down = interface_state_down;
	419	zclient->interface_address_add = interface_address_add;
	420	zclient->interface_address_delete = interface_address_delete;
28b11f81	421	zclient->route_notify_owner = route_notify_owner;
0ae8130d	422	zclient->nexthop_update = sharp_nexthop_update;
b47dc61a	423	zclient->import_check_update = sharp_nexthop_update;
8a71d93d	424	}