[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;

/* Inteface addition message from zebra. */
static int sharp_ifp_create(struct interface *ifp)
{
	return 0;
}

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

static int sharp_ifp_down(struct interface *ifp)
{
	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);

	/*
	 * Do not actually turn this on yet
	 * This is just the start of the infrastructure needed here
	 * This can be fixed at a later time.
	 *
	 *	zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP,
	 *			ZEBRA_ROUTE_ALL, 0, 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;
		api_nh->weight = nh->weight;

		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;
		}

		if (nh->nh_label && nh->nh_label->num_labels > 0) {
			int j;

			SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);

			api_nh->label_num = nh->nh_label->num_labels;
			for (j = 0; j < nh->nh_label->num_labels; j++)
				api_nh->labels[j] = nh->nh_label->label[j];
		}

		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_debug_nexthops(struct zapi_route *api)
{
	int i;
	char buf[PREFIX_STRLEN];

	for (i = 0; i < api->nexthop_num; i++) {
		struct zapi_nexthop *znh = &api->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 i;
}
static int sharp_nexthop_update(ZAPI_CALLBACK_ARGS)
{
	struct sharp_nh_tracker *nht;
	struct zapi_route nhr;

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

		return 0;
	}

	zlog_debug("Received update for %pFX", &nhr.prefix);

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

	sharp_debug_nexthops(&nhr);

	return 0;
}

static int sharp_redistribute_route(ZAPI_CALLBACK_ARGS)
{
	struct zapi_route api;

	if (zapi_route_decode(zclient->ibuf, &api) < 0)
		zlog_warn("%s: Decode of redistribute failed: %d",
			  __PRETTY_FUNCTION__,
			  ZEBRA_REDISTRIBUTE_ROUTE_ADD);

	zlog_debug("%s: %pFX (%s)", zserv_command_string(cmd),
		   &api.prefix, zebra_route_string(api.type));

	sharp_debug_nexthops(&api);

	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_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;

	zclient->redistribute_route_add = sharp_redistribute_route;
	zclient->redistribute_route_del = sharp_redistribute_route;
}
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
8a71d93d	49	/* Inteface addition message from zebra. */
ef7bd2a3	50	static int sharp_ifp_create(struct interface *ifp)
8a71d93d	51	{
8a71d93d DS	52	return 0;
	53	}
	54
3c3c3252	55	static int sharp_ifp_destroy(struct interface *ifp)
8a71d93d	56	{
8a71d93d DS	57	return 0;
	58	}
	59
121f9dee	60	static int interface_address_add(ZAPI_CALLBACK_ARGS)
8a71d93d	61	{
121f9dee	62	zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
8a71d93d DS	63
	64	return 0;
	65	}
	66
121f9dee	67	static int interface_address_delete(ZAPI_CALLBACK_ARGS)
8a71d93d DS	68	{
	69	struct connected *c;
	70
121f9dee	71	c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id);
8a71d93d DS	72
	73	if (!c)
	74	return 0;
	75
721c0857	76	connected_free(&c);
8a71d93d DS	77	return 0;
	78	}
	79
ddbf3e60	80	static int sharp_ifp_up(struct interface *ifp)
8a71d93d	81	{
8a71d93d DS	82	return 0;
	83	}
	84
b0b69e59	85	static int sharp_ifp_down(struct interface *ifp)
8a71d93d	86	{
8a71d93d DS	87	return 0;
	88	}
	89
0cf08685 DS	90	void sharp_install_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	91	uint8_t instance, struct nexthop_group *nhg,
6b98d34f DS	92	uint32_t routes)
	93	{
	94	uint32_t temp, i;
dbc1bf46	95	bool v4 = false;
6b98d34f DS	96
	97	zlog_debug("Inserting %u routes", routes);
	98
dbc1bf46 DS	99	if (p->family == AF_INET) {
	100	v4 = true;
	101	temp = ntohl(p->u.prefix4.s_addr);
	102	} else
	103	temp = ntohl(p->u.val32[3]);
	104
547dc642	105	monotime(&sg.r.t_start);
6b98d34f	106	for (i = 0; i < routes; i++) {
0cf08685	107	route_add(p, vrf_id, (uint8_t)instance, nhg);
dbc1bf46 DS	108	if (v4)
	109	p->u.prefix4.s_addr = htonl(++temp);
	110	else
	111	p->u.val32[3] = htonl(++temp);
6b98d34f DS	112	}
	113	}
	114
0cf08685 DS	115	void sharp_remove_routes_helper(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	116	uint8_t instance, uint32_t routes)
6b98d34f DS	117	{
6b98d34f DS	118	uint32_t temp, i;
dbc1bf46	119	bool v4 = false;
6b98d34f DS	120
	121	zlog_debug("Removing %u routes", routes);
	122
dbc1bf46 DS	123	if (p->family == AF_INET) {
	124	v4 = true;
	125	temp = ntohl(p->u.prefix4.s_addr);
	126	} else
	127	temp = ntohl(p->u.val32[3]);
	128
547dc642	129	monotime(&sg.r.t_start);
6b98d34f	130	for (i = 0; i < routes; i++) {
0cf08685	131	route_delete(p, vrf_id, (uint8_t)instance);
dbc1bf46 DS	132	if (v4)
	133	p->u.prefix4.s_addr = htonl(++temp);
	134	else
	135	p->u.val32[3] = htonl(++temp);
6b98d34f DS	136	}
	137	}
	138
b939f6ff	139	static void handle_repeated(bool installed)
6b98d34f	140	{
547dc642 DS	141	struct prefix p = sg.r.orig_prefix;
547dc642 DS	142	sg.r.repeat--;
6b98d34f	143
547dc642	144	if (sg.r.repeat <= 0)
6b98d34f DS	145	return;
	146
	147	if (installed) {
547dc642	148	sg.r.removed_routes = 0;
0cf08685 DS	149	sharp_remove_routes_helper(&p, sg.r.vrf_id,
0cf08685 DS	150	sg.r.inst, sg.r.total_routes);
6b98d34f DS	151	}
6b98d34f DS	152
f54f37c1	153	if (!installed) {
547dc642	154	sg.r.installed_routes = 0;
0cf08685 DS	155	sharp_install_routes_helper(&p, sg.r.vrf_id, sg.r.inst,
0cf08685 DS	156	&sg.r.nhop_group,
547dc642	157	sg.r.total_routes);
6b98d34f DS	158	}
	159	}
	160
121f9dee	161	static int route_notify_owner(ZAPI_CALLBACK_ARGS)
8a71d93d	162	{
25c84d86	163	struct timeval r;
8a71d93d DS	164	struct prefix p;
8a71d93d DS	165	enum zapi_route_notify_owner note;
28610f7e	166	uint32_t table;
8a71d93d	167
28610f7e	168	if (!zapi_route_notify_decode(zclient->ibuf, &p, &table, &note))
8a71d93d DS	169	return -1;
8a71d93d DS	170
5e54c602 DS	171	switch (note) {
5e54c602 DS	172	case ZAPI_ROUTE_INSTALLED:
547dc642 DS	173	sg.r.installed_routes++;
	174	if (sg.r.total_routes == sg.r.installed_routes) {
	175	monotime(&sg.r.t_end);
	176	timersub(&sg.r.t_end, &sg.r.t_start, &r);
051a0be4 DL	177	zlog_debug("Installed All Items %jd.%ld",
051a0be4 DL	178	(intmax_t)r.tv_sec, (long)r.tv_usec);
6b98d34f DS	179	handle_repeated(true);
6b98d34f DS	180	}
5e54c602 DS	181	break;
	182	case ZAPI_ROUTE_FAIL_INSTALL:
	183	zlog_debug("Failed install of route");
	184	break;
	185	case ZAPI_ROUTE_BETTER_ADMIN_WON:
	186	zlog_debug("Better Admin Distance won over us");
	187	break;
	188	case ZAPI_ROUTE_REMOVED:
547dc642 DS	189	sg.r.removed_routes++;
	190	if (sg.r.total_routes == sg.r.removed_routes) {
	191	monotime(&sg.r.t_end);
	192	timersub(&sg.r.t_end, &sg.r.t_start, &r);
051a0be4 DL	193	zlog_debug("Removed all Items %jd.%ld",
051a0be4 DL	194	(intmax_t)r.tv_sec, (long)r.tv_usec);
6b98d34f DS	195	handle_repeated(false);
6b98d34f DS	196	}
5e54c602 DS	197	break;
	198	case ZAPI_ROUTE_REMOVE_FAIL:
	199	zlog_debug("Route removal Failure");
	200	break;
	201	}
8a71d93d DS	202	return 0;
	203	}
	204
	205	static void zebra_connected(struct zclient *zclient)
	206	{
	207	zclient_send_reg_requests(zclient, VRF_DEFAULT);
67a9eda9 DS	208
	209	/*
	210	* Do not actually turn this on yet
	211	* This is just the start of the infrastructure needed here
	212	* This can be fixed at a later time.
	213	*
	214	* zebra_redistribute_send(ZEBRA_REDISTRIBUTE_ADD, zclient, AFI_IP,
	215	* ZEBRA_ROUTE_ALL, 0, VRF_DEFAULT);
	216	*/
8a71d93d DS	217	}
8a71d93d DS	218
7d061b3c	219	void vrf_label_add(vrf_id_t vrf_id, afi_t afi, mpls_label_t label)
ab18a495	220	{
7d061b3c	221	zclient_send_vrf_label(zclient, vrf_id, afi, label, ZEBRA_LSP_SHARP);
ab18a495 DS	222	}
ab18a495 DS	223
0cf08685 DS	224	void route_add(struct prefix *p, vrf_id_t vrf_id,
0cf08685 DS	225	uint8_t instance, struct nexthop_group *nhg)
8a71d93d DS	226	{
	227	struct zapi_route api;
	228	struct zapi_nexthop *api_nh;
694b242f DS	229	struct nexthop *nh;
694b242f DS	230	int i = 0;
8a71d93d DS	231
8a71d93d DS	232	memset(&api, 0, sizeof(api));
0cf08685	233	api.vrf_id = vrf_id;
8a71d93d	234	api.type = ZEBRA_ROUTE_SHARP;
ae252c02	235	api.instance = instance;
8a71d93d DS	236	api.safi = SAFI_UNICAST;
	237	memcpy(&api.prefix, p, sizeof(*p));
	238
a3896844	239	SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION);
8a71d93d DS	240	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
8a71d93d DS	241
694b242f DS	242	for (ALL_NEXTHOPS_PTR(nhg, nh)) {
694b242f DS	243	api_nh = &api.nexthops[i];
0cf08685	244	api_nh->vrf_id = nh->vrf_id;
694b242f	245	api_nh->type = nh->type;
bd054c1a DS	246	api_nh->weight = nh->weight;
bd054c1a DS	247
694b242f DS	248	switch (nh->type) {
	249	case NEXTHOP_TYPE_IPV4:
	250	api_nh->gate = nh->gate;
	251	break;
	252	case NEXTHOP_TYPE_IPV4_IFINDEX:
	253	api_nh->gate = nh->gate;
	254	api_nh->ifindex = nh->ifindex;
	255	break;
	256	case NEXTHOP_TYPE_IFINDEX:
	257	api_nh->ifindex = nh->ifindex;
	258	break;
	259	case NEXTHOP_TYPE_IPV6:
	260	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	261	break;
	262	case NEXTHOP_TYPE_IPV6_IFINDEX:
	263	api_nh->ifindex = nh->ifindex;
	264	memcpy(&api_nh->gate.ipv6, &nh->gate.ipv6, 16);
	265	break;
	266	case NEXTHOP_TYPE_BLACKHOLE:
	267	api_nh->bh_type = nh->bh_type;
	268	break;
	269	}
054af19a MS	270
	271	if (nh->nh_label && nh->nh_label->num_labels > 0) {
	272	int j;
	273
	274	SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL);
	275
	276	api_nh->label_num = nh->nh_label->num_labels;
	277	for (j = 0; j < nh->nh_label->num_labels; j++)
	278	api_nh->labels[j] = nh->nh_label->label[j];
	279	}
	280
694b242f DS	281	i++;
	282	}
	283	api.nexthop_num = i;
8a71d93d DS	284
	285	zclient_route_send(ZEBRA_ROUTE_ADD, zclient, &api);
	286	}
	287
0cf08685	288	void route_delete(struct prefix *p, vrf_id_t vrf_id, uint8_t instance)
8a71d93d DS	289	{
	290	struct zapi_route api;
	291
	292	memset(&api, 0, sizeof(api));
0cf08685	293	api.vrf_id = vrf_id;
8a71d93d DS	294	api.type = ZEBRA_ROUTE_SHARP;
8a71d93d DS	295	api.safi = SAFI_UNICAST;
ae252c02	296	api.instance = instance;
8a71d93d DS	297	memcpy(&api.prefix, p, sizeof(*p));
	298	zclient_route_send(ZEBRA_ROUTE_DELETE, zclient, &api);
	299
	300	return;
	301	}
	302
91529dc8	303	void sharp_zebra_nexthop_watch(struct prefix *p, vrf_id_t vrf_id, bool import,
b47dc61a	304	bool watch, bool connected)
0ae8130d	305	{
b47dc61a	306	int command;
0ae8130d	307
b47dc61a DS	308	if (!import) {
	309	command = ZEBRA_NEXTHOP_REGISTER;
	310
	311	if (!watch)
	312	command = ZEBRA_NEXTHOP_UNREGISTER;
	313	} else {
	314	command = ZEBRA_IMPORT_ROUTE_REGISTER;
	315
	316	if (!watch)
	317	command = ZEBRA_IMPORT_ROUTE_UNREGISTER;
	318	}
0ae8130d	319
91529dc8	320	if (zclient_send_rnh(zclient, command, p, connected, vrf_id) < 0)
b3beaea0 A	321	zlog_warn("%s: Failure to send nexthop to zebra",
b3beaea0 A	322	__PRETTY_FUNCTION__);
0ae8130d DS	323	}
0ae8130d DS	324
67a9eda9	325	static int sharp_debug_nexthops(struct zapi_route *api)
0ae8130d	326	{
0ae8130d	327	int i;
67a9eda9	328	char buf[PREFIX_STRLEN];
0ae8130d	329
67a9eda9 DS	330	for (i = 0; i < api->nexthop_num; i++) {
67a9eda9 DS	331	struct zapi_nexthop *znh = &api->nexthops[i];
0ae8130d DS	332
	333	switch (znh->type) {
	334	case NEXTHOP_TYPE_IPV4_IFINDEX:
	335	case NEXTHOP_TYPE_IPV4:
	336	zlog_debug(
	337	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	338	inet_ntop(AF_INET, &znh->gate.ipv4.s_addr, buf,
	339	sizeof(buf)),
	340	znh->type, znh->ifindex, znh->vrf_id,
	341	znh->label_num);
	342	break;
	343	case NEXTHOP_TYPE_IPV6_IFINDEX:
	344	case NEXTHOP_TYPE_IPV6:
	345	zlog_debug(
	346	"\tNexthop %s, type: %d, ifindex: %d, vrf: %d, label_num: %d",
	347	inet_ntop(AF_INET6, &znh->gate.ipv6, buf,
	348	sizeof(buf)),
	349	znh->type, znh->ifindex, znh->vrf_id,
	350	znh->label_num);
	351	break;
	352	case NEXTHOP_TYPE_IFINDEX:
	353	zlog_debug("\tNexthop IFINDEX: %d, ifindex: %d",
	354	znh->type, znh->ifindex);
	355	break;
	356	case NEXTHOP_TYPE_BLACKHOLE:
	357	zlog_debug("\tNexthop blackhole");
	358	break;
	359	}
	360	}
67a9eda9 DS	361
	362	return i;
	363	}
	364	static int sharp_nexthop_update(ZAPI_CALLBACK_ARGS)
	365	{
	366	struct sharp_nh_tracker *nht;
	367	struct zapi_route nhr;
	368
	369	if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) {
	370	zlog_warn("%s: Decode of update failed", __PRETTY_FUNCTION__);
	371
	372	return 0;
	373	}
	374
	375	zlog_debug("Received update for %pFX", &nhr.prefix);
	376
	377	nht = sharp_nh_tracker_get(&nhr.prefix);
	378	nht->nhop_num = nhr.nexthop_num;
	379	nht->updates++;
	380
	381	sharp_debug_nexthops(&nhr);
	382
	383	return 0;
	384	}
	385
	386	static int sharp_redistribute_route(ZAPI_CALLBACK_ARGS)
	387	{
	388	struct zapi_route api;
	389
	390	if (zapi_route_decode(zclient->ibuf, &api) < 0)
	391	zlog_warn("%s: Decode of redistribute failed: %d",
	392	__PRETTY_FUNCTION__,
	393	ZEBRA_REDISTRIBUTE_ROUTE_ADD);
	394
	395	zlog_debug("%s: %pFX (%s)", zserv_command_string(cmd),
	396	&api.prefix, zebra_route_string(api.type));
	397
	398	sharp_debug_nexthops(&api);
	399
0ae8130d DS	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_address_add = interface_address_add;
8a71d93d DS	417	zclient->interface_address_delete = interface_address_delete;
28b11f81	418	zclient->route_notify_owner = route_notify_owner;
0ae8130d	419	zclient->nexthop_update = sharp_nexthop_update;
b47dc61a	420	zclient->import_check_update = sharp_nexthop_update;
67a9eda9 DS	421
	422	zclient->redistribute_route_add = sharp_redistribute_route;
	423	zclient->redistribute_route_del = sharp_redistribute_route;
8a71d93d	424	}