[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, 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 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;
}
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
6b98d34f DS	134	void sharp_install_routes_helper(struct prefix *p, uint8_t instance,
	135	struct nexthop_group *nhg,
	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 DS	150	for (i = 0; i < routes; i++) {
6b98d34f DS	151	route_add(p, (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
	159	void sharp_remove_routes_helper(struct prefix *p, uint8_t instance,
	160	uint32_t routes)
	161	{
	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 DS	174	for (i = 0; i < routes; i++) {
6b98d34f DS	175	route_delete(p, (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 DS	192	sg.r.removed_routes = 0;
547dc642 DS	193	sharp_remove_routes_helper(&p, sg.r.inst, sg.r.total_routes);
6b98d34f DS	194	}
6b98d34f DS	195
547dc642 DS	196	if (installed) {
	197	sg.r.installed_routes = 0;
	198	sharp_install_routes_helper(&p, sg.r.inst, &sg.r.nhop_group,
	199	sg.r.total_routes);
6b98d34f DS	200	}
	201	}
	202
28b11f81 DS	203	static int route_notify_owner(int command, struct zclient *zclient,
28b11f81 DS	204	zebra_size_t length, vrf_id_t vrf_id)
8a71d93d	205	{
25c84d86	206	struct timeval r;
8a71d93d DS	207	struct prefix p;
8a71d93d DS	208	enum zapi_route_notify_owner note;
28610f7e	209	uint32_t table;
8a71d93d	210
28610f7e	211	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
8a71d93d DS	212	return -1;
8a71d93d DS	213
5e54c602 DS	214	switch (note) {
5e54c602 DS	215	case ZAPI_ROUTE_INSTALLED:
547dc642 DS	216	sg.r.installed_routes++;
	217	if (sg.r.total_routes == sg.r.installed_routes) {
	218	monotime(&sg.r.t_end);
	219	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	220	zlog_debug("Installed All Items %ld.%ld", r.tv_sec,
25c84d86 DS	221	r.tv_usec);
6b98d34f DS	222	handle_repeated(true);
6b98d34f DS	223	}
5e54c602 DS	224	break;
	225	case ZAPI_ROUTE_FAIL_INSTALL:
	226	zlog_debug("Failed install of route");
	227	break;
	228	case ZAPI_ROUTE_BETTER_ADMIN_WON:
	229	zlog_debug("Better Admin Distance won over us");
	230	break;
	231	case ZAPI_ROUTE_REMOVED:
547dc642 DS	232	sg.r.removed_routes++;
	233	if (sg.r.total_routes == sg.r.removed_routes) {
	234	monotime(&sg.r.t_end);
	235	timersub(&sg.r.t_end, &sg.r.t_start, &r);
25c84d86 DS	236	zlog_debug("Removed all Items %ld.%ld", r.tv_sec,
25c84d86 DS	237	r.tv_usec);
6b98d34f DS	238	handle_repeated(false);
6b98d34f DS	239	}
5e54c602 DS	240	break;
	241	case ZAPI_ROUTE_REMOVE_FAIL:
	242	zlog_debug("Route removal Failure");
	243	break;
	244	}
8a71d93d DS	245	return 0;
	246	}
	247
	248	static void zebra_connected(struct zclient *zclient)
	249	{
	250	zclient_send_reg_requests(zclient, VRF_DEFAULT);
	251	}
	252
7d061b3c	253	void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
ab18a495	254	{
7d061b3c	255	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
ab18a495 DS	256	}
ab18a495 DS	257
694b242f	258	void route_add(struct prefix p, uint8_t instance, struct nexthop_group nhg)
8a71d93d DS	259	{
	260	struct zapi_route api;
	261	struct zapi_nexthop *api_nh;
694b242f DS	262	struct nexthop *nh;
694b242f DS	263	int i = 0;
8a71d93d DS	264
	265	memset(&api, 0, sizeof(api));
	266	api.vrf_id = VRF_DEFAULT;
	267	api.type = ZEBRA_ROUTE_SHARP;
ae252c02	268	api.instance = instance;
8a71d93d DS	269	api.safi = SAFI_UNICAST;
	270	memcpy(&api.prefix, p, sizeof(*p));
	271
a3896844	272	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
8a71d93d DS	273	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
8a71d93d DS	274
694b242f DS	275	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
	276	api_nh = &api.nexthops[i];
	277	api_nh->vrf_id = VRF_DEFAULT;
	278	api_nh->type = nh->type;
	279	switch (nh->type) {
	280	case NEXTHOP_TYPE_IPV4:
	281	api_nh->gate = nh->gate;
	282	break;
	283	case NEXTHOP_TYPE_IPV4_IFINDEX:
	284	api_nh->gate = nh->gate;
	285	api_nh->ifindex = nh->ifindex;
	286	break;
	287	case NEXTHOP_TYPE_IFINDEX:
	288	api_nh->ifindex = nh->ifindex;
	289	break;
	290	case NEXTHOP_TYPE_IPV6:
	291	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	292	break;
	293	case NEXTHOP_TYPE_IPV6_IFINDEX:
	294	api_nh->ifindex = nh->ifindex;
	295	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	296	break;
	297	case NEXTHOP_TYPE_BLACKHOLE:
	298	api_nh->bh_type = nh->bh_type;
	299	break;
	300	}
	301	i++;
	302	}
	303	api.nexthop_num = i;
8a71d93d DS	304
	305	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
	306	}
	307
ae252c02	308	void route_delete(struct prefix *p, uint8_t instance)
8a71d93d DS	309	{
	310	struct zapi_route api;
	311
	312	memset(&api, 0, sizeof(api));
	313	api.vrf_id = VRF_DEFAULT;
	314	api.type = ZEBRA_ROUTE_SHARP;
	315	api.safi = SAFI_UNICAST;
ae252c02	316	api.instance = instance;
8a71d93d DS	317	memcpy(&api.prefix, p, sizeof(*p));
	318	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
	319
	320	return;
	321	}
	322
a60ffbc9	323	void sharp_zebra_nexthop_watch(struct prefix *p, bool watch, bool connected)
0ae8130d DS	324	{
	325	int command = ZEBRA_NEXTHOP_REGISTER;
	326
	327	if (!watch)
	328	command = ZEBRA_NEXTHOP_UNREGISTER;
	329
a60ffbc9	330	if (zclient_send_rnh(zclient, command, p, connected, VRF_DEFAULT) < 0)
b3beaea0 A	331	zlog_warn("%s: Failure to send nexthop to zebra",
b3beaea0 A	332	__PRETTY_FUNCTION__);
0ae8130d DS	333	}
	334
	335	static int sharp_nexthop_update(int command, struct zclient *zclient,
	336	zebra_size_t length, vrf_id_t vrf_id)
	337	{
86da53ab	338	struct sharp_nh_tracker *nht;
0ae8130d DS	339	struct zapi_route nhr;
	340	char buf[PREFIX_STRLEN];
	341	int i;
	342
	343	if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) {
	344	zlog_warn("%s: Decode of update failed", __PRETTY_FUNCTION__);
	345
	346	return 0;
	347	}
	348
	349	zlog_debug("Received update for %s",
	350	prefix2str(&nhr.prefix, buf, sizeof(buf)));
86da53ab DS	351
	352	nht = sharp_nh_tracker_get(&nhr.prefix);
	353	nht->nhop_num = nhr.nexthop_num;
	354	nht->updates++;
	355
0ae8130d DS	356	for (i = 0; i < nhr.nexthop_num; i++) {
	357	struct zapi_nexthop *znh = &nhr.nexthops[i];
	358
	359	switch (znh->type) {
	360	case NEXTHOP_TYPE_IPV4_IFINDEX:
	361	case NEXTHOP_TYPE_IPV4:
	362	zlog_debug(
	363	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	364	inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
	365	sizeof(buf)),
	366	znh->type, znh->ifindex, znh->vrf_id,
	367	znh->label_num);
	368	break;
	369	case NEXTHOP_TYPE_IPV6_IFINDEX:
	370	case NEXTHOP_TYPE_IPV6:
	371	zlog_debug(
	372	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	373	inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
	374	sizeof(buf)),
	375	znh->type, znh->ifindex, znh->vrf_id,
	376	znh->label_num);
	377	break;
	378	case NEXTHOP_TYPE_IFINDEX:
	379	zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
	380	znh->type, znh->ifindex);
	381	break;
	382	case NEXTHOP_TYPE_BLACKHOLE:
	383	zlog_debug("\tNexthop blackhole");
	384	break;
	385	}
	386	}
	387	return 0;
	388	}
	389
8a71d93d DS	390	extern struct zebra_privs_t sharp_privs;
	391
	392	void sharp_zebra_init(void)
	393	{
996c9314	394	struct zclient_options opt = {.receive_notify = true};
8a71d93d	395
26f63a1e	396	zclient = zclient_new(master, &opt);
8a71d93d DS	397
	398	zclient_init(zclient, ZEBRA_ROUTE_SHARP, 0, &sharp_privs);
	399	zclient->zebra_connected = zebra_connected;
	400	zclient->interface_add = interface_add;
	401	zclient->interface_delete = interface_delete;
	402	zclient->interface_up = interface_state_up;
	403	zclient->interface_down = interface_state_down;
	404	zclient->interface_address_add = interface_address_add;
	405	zclient->interface_address_delete = interface_address_delete;
28b11f81	406	zclient->route_notify_owner = route_notify_owner;
0ae8130d	407	zclient->nexthop_update = sharp_nexthop_update;
8a71d93d	408	}