[mirror_frr.git] / ripd / rip_zebra.c

/* RIPd and zebra interface.
 * Copyright (C) 1997, 1999 Kunihiro Ishiguro <kunihiro@zebra.org>
 *
 * This file is part of GNU Zebra.
 *
 * GNU Zebra 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.
 *
 * GNU Zebra 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 "command.h"
#include "prefix.h"
#include "table.h"
#include "stream.h"
#include "memory.h"
#include "routemap.h"
#include "zclient.h"
#include "log.h"
#include "vrf.h"
#include "ripd/ripd.h"
#include "ripd/rip_debug.h"
#include "ripd/rip_interface.h"

/* All information about zebra. */
struct zclient *zclient = NULL;

/* Send ECMP routes to zebra. */
static void rip_zebra_ipv4_send(struct route_node *rp, u_char cmd)
{
	struct list *list = (struct list *)rp->info;
	struct zapi_route api;
	struct zapi_nexthop *api_nh;
	struct listnode *listnode = NULL;
	struct rip_info *rinfo = NULL;
	int count = 0;

	memset(&api, 0, sizeof(api));
	api.vrf_id = VRF_DEFAULT;
	api.type = ZEBRA_ROUTE_RIP;
	api.safi = SAFI_UNICAST;

	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
	for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) {
		if (count >= MULTIPATH_NUM)
			break;
		api_nh = &api.nexthops[count];
		api_nh->gate.ipv4 = rinfo->nexthop;
		api_nh->type = NEXTHOP_TYPE_IPV4;
		if (cmd == ZEBRA_ROUTE_ADD)
			SET_FLAG(rinfo->flags, RIP_RTF_FIB);
		else
			UNSET_FLAG(rinfo->flags, RIP_RTF_FIB);
		count++;
	}

	api.prefix = rp->p;
	api.nexthop_num = count;

	rinfo = listgetdata(listhead(list));

	SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
	api.metric = rinfo->metric;

	if (rinfo->distance && rinfo->distance != ZEBRA_RIP_DISTANCE_DEFAULT) {
		SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
		api.distance = rinfo->distance;
	}

	if (rinfo->tag) {
		SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
		api.tag = rinfo->tag;
	}

	zclient_route_send(cmd, zclient, &api);

	if (IS_RIP_DEBUG_ZEBRA) {
		if (rip->ecmp)
			zlog_debug("%s: %s/%d nexthops %d",
				   (cmd == ZEBRA_ROUTE_ADD)
					   ? "Install into zebra"
					   : "Delete from zebra",
				   inet_ntoa(rp->p.u.prefix4), rp->p.prefixlen,
				   count);
		else
			zlog_debug("%s: %s/%d",
				   (cmd == ZEBRA_ROUTE_ADD)
					   ? "Install into zebra"
					   : "Delete from zebra",
				   inet_ntoa(rp->p.u.prefix4), rp->p.prefixlen);
	}

	rip_global_route_changes++;
}

/* Add/update ECMP routes to zebra. */
void rip_zebra_ipv4_add(struct route_node *rp)
{
	rip_zebra_ipv4_send(rp, ZEBRA_ROUTE_ADD);
}

/* Delete ECMP routes from zebra. */
void rip_zebra_ipv4_delete(struct route_node *rp)
{
	rip_zebra_ipv4_send(rp, ZEBRA_ROUTE_DELETE);
}

/* Zebra route add and delete treatment. */
static int rip_zebra_read_route(int command, struct zclient *zclient,
				zebra_size_t length, vrf_id_t vrf_id)
{
	struct zapi_route api;
	struct in_addr nexthop;
	unsigned long ifindex;

	if (!rip)
		return 0;

	if (zapi_route_decode(zclient->ibuf, &api) < 0)
		return -1;

	nexthop = api.nexthops[0].gate.ipv4;
	ifindex = api.nexthops[0].ifindex;

	/* Then fetch IPv4 prefixes. */
	if (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD)
		rip_redistribute_add(api.type, RIP_ROUTE_REDISTRIBUTE,
				     (struct prefix_ipv4 *)&api.prefix, ifindex,
				     &nexthop, api.metric, api.distance,
				     api.tag);
	else if (command == ZEBRA_REDISTRIBUTE_ROUTE_DEL)
		rip_redistribute_delete(api.type, RIP_ROUTE_REDISTRIBUTE,
					(struct prefix_ipv4 *)&api.prefix,
					ifindex);

	return 0;
}

void rip_zclient_reset(void)
{
	zclient_reset(zclient);
}

/* RIP route-map set for redistribution */
static void rip_routemap_set(int type, const char *name)
{
	if (rip->route_map[type].name)
		free(rip->route_map[type].name);

	rip->route_map[type].name = strdup(name);
	rip->route_map[type].map = route_map_lookup_by_name(name);
}

static void rip_redistribute_metric_set(int type, unsigned int metric)
{
	rip->route_map[type].metric_config = 1;
	rip->route_map[type].metric = metric;
}

static int rip_metric_unset(int type, unsigned int metric)
{
#define DONT_CARE_METRIC_RIP 17  
	if (metric != DONT_CARE_METRIC_RIP
	    && rip->route_map[type].metric != metric)
		return 1;
	rip->route_map[type].metric_config = 0;
	rip->route_map[type].metric = 0;
	return 0;
}

/* RIP route-map unset for redistribution */
static int rip_routemap_unset(int type, const char *name)
{
	if (!rip->route_map[type].name
	    || (name != NULL && strcmp(rip->route_map[type].name, name)))
		return 1;

	free(rip->route_map[type].name);
	rip->route_map[type].name = NULL;
	rip->route_map[type].map = NULL;

	return 0;
}

/* Redistribution types */
static struct {
	int type;
	int str_min_len;
	const char *str;
} redist_type[] = {{ZEBRA_ROUTE_KERNEL, 1, "kernel"},
		   {ZEBRA_ROUTE_CONNECT, 1, "connected"},
		   {ZEBRA_ROUTE_STATIC, 1, "static"},
		   {ZEBRA_ROUTE_OSPF, 1, "ospf"},
		   {ZEBRA_ROUTE_BGP, 2, "bgp"},
		   {ZEBRA_ROUTE_VNC, 1, "vnc"},
		   {0, 0, NULL}};

static int rip_redistribute_unset(int type)
{
	if (!vrf_bitmap_check(zclient->redist[AFI_IP][type], VRF_DEFAULT))
		return CMD_SUCCESS;

	vrf_bitmap_unset(zclient->redist[AFI_IP][type], VRF_DEFAULT);

	if (zclient->sock > 0)
		zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient,
					AFI_IP, type, 0, VRF_DEFAULT);

	/* Remove the routes from RIP table. */
	rip_redistribute_withdraw(type);

	return CMD_SUCCESS;
}

int rip_redistribute_check(int type)
{
	return vrf_bitmap_check(zclient->redist[AFI_IP][type], VRF_DEFAULT);
}

void rip_redistribute_clean(void)
{
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (vrf_bitmap_check(
			    zclient->redist[AFI_IP][redist_type[i].type],
			    VRF_DEFAULT)) {
			if (zclient->sock > 0)
				zebra_redistribute_send(
					ZEBRA_REDISTRIBUTE_DELETE, zclient,
					AFI_IP, redist_type[i].type, 0,
					VRF_DEFAULT);

			vrf_bitmap_unset(
				zclient->redist[AFI_IP][redist_type[i].type],
				VRF_DEFAULT);

			/* Remove the routes from RIP table. */
			rip_redistribute_withdraw(redist_type[i].type);
		}
	}
}

DEFUN (rip_redistribute_type,
       rip_redistribute_type_cmd,
       "redistribute " FRR_REDIST_STR_RIPD,
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD)
{
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strncmp(redist_type[i].str, argv[1]->arg,
			    redist_type[i].str_min_len)
		    == 0) {
			zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
					     AFI_IP, redist_type[i].type, 0,
					     VRF_DEFAULT);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[1]->arg);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (no_rip_redistribute_type,
       no_rip_redistribute_type_cmd,
       "no redistribute " FRR_REDIST_STR_RIPD,
       NO_STR
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD)
{
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strncmp(redist_type[i].str, argv[2]->arg,
			    redist_type[i].str_min_len)
		    == 0) {
			rip_metric_unset(redist_type[i].type,
					 DONT_CARE_METRIC_RIP);
			rip_routemap_unset(redist_type[i].type, NULL);
			rip_redistribute_unset(redist_type[i].type);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[2]->arg);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (rip_redistribute_type_routemap,
       rip_redistribute_type_routemap_cmd,
       "redistribute " FRR_REDIST_STR_RIPD " route-map WORD",
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Route map reference\n"
       "Pointer to route-map entries\n")
{
	int idx_protocol = 1;
	int idx_word = 3;
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			rip_routemap_set(redist_type[i].type,
					 argv[idx_word]->arg);
			zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
					     AFI_IP, redist_type[i].type, 0,
					     VRF_DEFAULT);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (no_rip_redistribute_type_routemap,
       no_rip_redistribute_type_routemap_cmd,
       "no redistribute " FRR_REDIST_STR_RIPD " route-map WORD",
       NO_STR
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Route map reference\n"
       "Pointer to route-map entries\n")
{
	int idx_protocol = 2;
	int idx_word = 4;
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			if (rip_routemap_unset(redist_type[i].type,
					       argv[idx_word]->arg))
				return CMD_WARNING_CONFIG_FAILED;
			rip_redistribute_unset(redist_type[i].type);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (rip_redistribute_type_metric,
       rip_redistribute_type_metric_cmd,
       "redistribute " FRR_REDIST_STR_RIPD " metric (0-16)",
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Metric\n"
       "Metric value\n")
{
	int idx_protocol = 1;
	int idx_number = 3;
	int i;
	int metric;

	metric = atoi(argv[idx_number]->arg);

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			rip_redistribute_metric_set(redist_type[i].type,
						    metric);
			zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
					     AFI_IP, redist_type[i].type, 0,
					     VRF_DEFAULT);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (no_rip_redistribute_type_metric,
       no_rip_redistribute_type_metric_cmd,
       "no redistribute " FRR_REDIST_STR_RIPD " metric (0-16)",
       NO_STR
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Metric\n"
       "Metric value\n")
{
	int idx_protocol = 2;
	int idx_number = 4;
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			if (rip_metric_unset(redist_type[i].type,
					     atoi(argv[idx_number]->arg)))
				return CMD_WARNING_CONFIG_FAILED;
			rip_redistribute_unset(redist_type[i].type);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}

DEFUN (rip_redistribute_type_metric_routemap,
       rip_redistribute_type_metric_routemap_cmd,
       "redistribute " FRR_REDIST_STR_RIPD " metric (0-16) route-map WORD",
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Metric\n"
       "Metric value\n"
       "Route map reference\n"
       "Pointer to route-map entries\n")
{
	int idx_protocol = 1;
	int idx_number = 3;
	int idx_word = 5;
	int i;
	int metric;

	metric = atoi(argv[idx_number]->arg);

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			rip_redistribute_metric_set(redist_type[i].type,
						    metric);
			rip_routemap_set(redist_type[i].type,
					 argv[idx_word]->arg);
			zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
					     AFI_IP, redist_type[i].type, 0,
					     VRF_DEFAULT);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}


DEFUN (no_rip_redistribute_type_metric_routemap,
       no_rip_redistribute_type_metric_routemap_cmd,
       "no redistribute " FRR_REDIST_STR_RIPD " metric (0-16) route-map WORD",
       NO_STR
       REDIST_STR
       FRR_REDIST_HELP_STR_RIPD
       "Metric\n"
       "Metric value\n"
       "Route map reference\n"
       "Pointer to route-map entries\n")
{
	int idx_protocol = 2;
	int idx_number = 4;
	int idx_word = 6;
	int i;

	for (i = 0; redist_type[i].str; i++) {
		if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
			if (rip_metric_unset(redist_type[i].type,
					     atoi(argv[idx_number]->arg)))
				return CMD_WARNING_CONFIG_FAILED;
			if (rip_routemap_unset(redist_type[i].type,
					       argv[idx_word]->arg)) {
				rip_redistribute_metric_set(
					redist_type[i].type,
					atoi(argv[idx_number]->arg));
				return CMD_WARNING_CONFIG_FAILED;
			}
			rip_redistribute_unset(redist_type[i].type);
			return CMD_SUCCESS;
		}
	}

	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);

	return CMD_WARNING_CONFIG_FAILED;
}

/* Default information originate. */

DEFUN (rip_default_information_originate,
       rip_default_information_originate_cmd,
       "default-information originate",
       "Control distribution of default route\n"
       "Distribute a default route\n")
{
	struct prefix_ipv4 p;

	if (!rip->default_information) {
		memset(&p, 0, sizeof(struct prefix_ipv4));
		p.family = AF_INET;

		rip->default_information = 1;

		rip_redistribute_add(ZEBRA_ROUTE_RIP, RIP_ROUTE_DEFAULT, &p, 0,
				     NULL, 0, 0, 0);
	}

	return CMD_SUCCESS;
}

DEFUN (no_rip_default_information_originate,
       no_rip_default_information_originate_cmd,
       "no default-information originate",
       NO_STR
       "Control distribution of default route\n"
       "Distribute a default route\n")
{
	struct prefix_ipv4 p;

	if (rip->default_information) {
		memset(&p, 0, sizeof(struct prefix_ipv4));
		p.family = AF_INET;

		rip->default_information = 0;

		rip_redistribute_delete(ZEBRA_ROUTE_RIP, RIP_ROUTE_DEFAULT, &p,
					0);
	}

	return CMD_SUCCESS;
}

int config_write_rip_redistribute(struct vty *vty, int config_mode)
{
	int i;

	for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
		if (i == zclient->redist_default
		    || !vrf_bitmap_check(zclient->redist[AFI_IP][i],
					 VRF_DEFAULT))
			continue;

		if (!config_mode) {
			vty_out(vty, " %s", zebra_route_string(i));
			continue;
		}

		if (rip->route_map[i].metric_config) {
			if (rip->route_map[i].name)
				vty_out(vty,
					" redistribute %s metric %d route-map %s\n",
					zebra_route_string(i),
					rip->route_map[i].metric,
					rip->route_map[i].name);
			else
				vty_out(vty, " redistribute %s metric %d\n",
					zebra_route_string(i),
					rip->route_map[i].metric);
		} else {
			if (rip->route_map[i].name)
				vty_out(vty, " redistribute %s route-map %s\n",
					zebra_route_string(i),
					rip->route_map[i].name);
			else
				vty_out(vty, " redistribute %s\n",
					zebra_route_string(i));
		}
	}

	return 0;
}

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

void rip_zclient_init(struct thread_master *master)
{
	/* Set default value to the zebra client structure. */
	zclient = zclient_new(master);
	zclient_init(zclient, ZEBRA_ROUTE_RIP, 0, &ripd_privs);
	zclient->zebra_connected = rip_zebra_connected;
	zclient->interface_add = rip_interface_add;
	zclient->interface_delete = rip_interface_delete;
	zclient->interface_address_add = rip_interface_address_add;
	zclient->interface_address_delete = rip_interface_address_delete;
	zclient->interface_up = rip_interface_up;
	zclient->interface_down = rip_interface_down;
	zclient->redistribute_route_add = rip_zebra_read_route;
	zclient->redistribute_route_del = rip_zebra_read_route;

	/* Install command elements to rip node. */
	install_element(RIP_NODE, &rip_redistribute_type_cmd);
	install_element(RIP_NODE, &rip_redistribute_type_routemap_cmd);
	install_element(RIP_NODE, &rip_redistribute_type_metric_cmd);
	install_element(RIP_NODE, &rip_redistribute_type_metric_routemap_cmd);
	install_element(RIP_NODE, &no_rip_redistribute_type_cmd);
	install_element(RIP_NODE, &no_rip_redistribute_type_routemap_cmd);
	install_element(RIP_NODE, &no_rip_redistribute_type_metric_cmd);
	install_element(RIP_NODE,
			&no_rip_redistribute_type_metric_routemap_cmd);
	install_element(RIP_NODE, &rip_default_information_originate_cmd);
	install_element(RIP_NODE, &no_rip_default_information_originate_cmd);
}

void rip_zclient_stop(void)
{
	zclient_stop(zclient);
	zclient_free(zclient);
}
Commit	Line	Data
718e3744	1	/* RIPd and zebra interface.
	2	* Copyright (C) 1997, 1999 Kunihiro Ishiguro <kunihiro@zebra.org>
	3	*
	4	* This file is part of GNU Zebra.
	5	*
	6	* GNU Zebra is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2, or (at your option) any
	9	* later version.
	10	*
	11	* GNU Zebra is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* General Public License for more details.
	15	*
896014f4 DL	16	* You should have received a copy of the GNU General Public License along
	17	* with this program; see the file COPYING; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
718e3744	19	*/
	20
	21	#include <zebra.h>
	22
	23	#include "command.h"
	24	#include "prefix.h"
bce8e868	25	#include "table.h"
718e3744	26	#include "stream.h"
bce8e868	27	#include "memory.h"
718e3744	28	#include "routemap.h"
	29	#include "zclient.h"
	30	#include "log.h"
7076bb2f	31	#include "vrf.h"
718e3744	32	#include "ripd/ripd.h"
718e3744	33	#include "ripd/rip_debug.h"
dc63bfd4	34	#include "ripd/rip_interface.h"
718e3744	35
	36	/* All information about zebra. */
	37	struct zclient *zclient = NULL;
6b0655a2	38
bce8e868	39	/* Send ECMP routes to zebra. */
d62a17ae	40	static void rip_zebra_ipv4_send(struct route_node *rp, u_char cmd)
718e3744	41	{
d62a17ae	42	struct list list = (struct list )rp->info;
c9fb3e23 RW	43	struct zapi_route api;
c9fb3e23 RW	44	struct zapi_nexthop *api_nh;
d62a17ae	45	struct listnode *listnode = NULL;
	46	struct rip_info *rinfo = NULL;
	47	int count = 0;
	48
c9fb3e23	49	memset(&api, 0, sizeof(api));
d00061ea RW	50	api.vrf_id = VRF_DEFAULT;
d00061ea RW	51	api.type = ZEBRA_ROUTE_RIP;
d00061ea RW	52	api.safi = SAFI_UNICAST;
d00061ea RW	53
d00061ea RW	54	SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
d00061ea RW	55	for (ALL_LIST_ELEMENTS_RO(list, listnode, rinfo)) {
a74e593b RW	56	if (count >= MULTIPATH_NUM)
a74e593b RW	57	break;
c9fb3e23 RW	58	api_nh = &api.nexthops[count];
	59	api_nh->gate.ipv4 = rinfo->nexthop;
	60	api_nh->type = NEXTHOP_TYPE_IPV4;
	61	if (cmd == ZEBRA_ROUTE_ADD)
d00061ea RW	62	SET_FLAG(rinfo->flags, RIP_RTF_FIB);
	63	else
	64	UNSET_FLAG(rinfo->flags, RIP_RTF_FIB);
c9fb3e23	65	count++;
d00061ea	66	}
d62a17ae	67
c9fb3e23	68	api.prefix = rp->p;
d00061ea	69	api.nexthop_num = count;
d62a17ae	70
d00061ea	71	rinfo = listgetdata(listhead(list));
d62a17ae	72
d00061ea RW	73	SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
d00061ea RW	74	api.metric = rinfo->metric;
d62a17ae	75
d00061ea RW	76	if (rinfo->distance && rinfo->distance != ZEBRA_RIP_DISTANCE_DEFAULT) {
	77	SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE);
	78	api.distance = rinfo->distance;
	79	}
d62a17ae	80
d00061ea RW	81	if (rinfo->tag) {
	82	SET_FLAG(api.message, ZAPI_MESSAGE_TAG);
	83	api.tag = rinfo->tag;
	84	}
d62a17ae	85
c9fb3e23	86	zclient_route_send(cmd, zclient, &api);
d00061ea RW	87
	88	if (IS_RIP_DEBUG_ZEBRA) {
	89	if (rip->ecmp)
	90	zlog_debug("%s: %s/%d nexthops %d",
c9fb3e23	91	(cmd == ZEBRA_ROUTE_ADD)
d00061ea RW	92	? "Install into zebra"
	93	: "Delete from zebra",
	94	inet_ntoa(rp->p.u.prefix4), rp->p.prefixlen,
	95	count);
	96	else
	97	zlog_debug("%s: %s/%d",
c9fb3e23	98	(cmd == ZEBRA_ROUTE_ADD)
d00061ea RW	99	? "Install into zebra"
	100	: "Delete from zebra",
	101	inet_ntoa(rp->p.u.prefix4), rp->p.prefixlen);
d62a17ae	102	}
d00061ea RW	103
d00061ea RW	104	rip_global_route_changes++;
718e3744	105	}
718e3744	106
bce8e868	107	/* Add/update ECMP routes to zebra. */
d62a17ae	108	void rip_zebra_ipv4_add(struct route_node *rp)
718e3744	109	{
c9fb3e23	110	rip_zebra_ipv4_send(rp, ZEBRA_ROUTE_ADD);
bce8e868	111	}
718e3744	112
bce8e868	113	/* Delete ECMP routes from zebra. */
d62a17ae	114	void rip_zebra_ipv4_delete(struct route_node *rp)
bce8e868	115	{
c9fb3e23	116	rip_zebra_ipv4_send(rp, ZEBRA_ROUTE_DELETE);
718e3744	117	}
	118
	119	/* Zebra route add and delete treatment. */
74489921 RW	120	static int rip_zebra_read_route(int command, struct zclient *zclient,
74489921 RW	121	zebra_size_t length, vrf_id_t vrf_id)
718e3744	122	{
74489921	123	struct zapi_route api;
d62a17ae	124	struct in_addr nexthop;
74489921	125	unsigned long ifindex;
d62a17ae	126
	127	if (!rip)
	128	return 0;
	129
74489921 RW	130	if (zapi_route_decode(zclient->ibuf, &api) < 0)
	131	return -1;
	132
	133	nexthop = api.nexthops[0].gate.ipv4;
	134	ifindex = api.nexthops[0].ifindex;
d62a17ae	135
d62a17ae	136	/* Then fetch IPv4 prefixes. */
74489921 RW	137	if (command == ZEBRA_REDISTRIBUTE_ROUTE_ADD)
	138	rip_redistribute_add(api.type, RIP_ROUTE_REDISTRIBUTE,
	139	(struct prefix_ipv4 *)&api.prefix, ifindex,
	140	&nexthop, api.metric, api.distance,
	141	api.tag);
	142	else if (command == ZEBRA_REDISTRIBUTE_ROUTE_DEL)
	143	rip_redistribute_delete(api.type, RIP_ROUTE_REDISTRIBUTE,
	144	(struct prefix_ipv4 *)&api.prefix,
d62a17ae	145	ifindex);
	146
	147	return 0;
718e3744	148	}
718e3744	149
d62a17ae	150	void rip_zclient_reset(void)
718e3744	151	{
d62a17ae	152	zclient_reset(zclient);
718e3744	153	}
	154
	155	/* RIP route-map set for redistribution */
d62a17ae	156	static void rip_routemap_set(int type, const char *name)
718e3744	157	{
d62a17ae	158	if (rip->route_map[type].name)
d62a17ae	159	free(rip->route_map[type].name);
718e3744	160
d62a17ae	161	rip->route_map[type].name = strdup(name);
d62a17ae	162	rip->route_map[type].map = route_map_lookup_by_name(name);
718e3744	163	}
718e3744	164
d62a17ae	165	static void rip_redistribute_metric_set(int type, unsigned int metric)
718e3744	166	{
d62a17ae	167	rip->route_map[type].metric_config = 1;
d62a17ae	168	rip->route_map[type].metric = metric;
718e3744	169	}
718e3744	170
d62a17ae	171	static int rip_metric_unset(int type, unsigned int metric)
718e3744	172	{
718e3744	173	#define DONT_CARE_METRIC_RIP 17
d62a17ae	174	if (metric != DONT_CARE_METRIC_RIP
	175	&& rip->route_map[type].metric != metric)
	176	return 1;
	177	rip->route_map[type].metric_config = 0;
	178	rip->route_map[type].metric = 0;
	179	return 0;
718e3744	180	}
	181
	182	/* RIP route-map unset for redistribution */
d62a17ae	183	static int rip_routemap_unset(int type, const char *name)
718e3744	184	{
d62a17ae	185	if (!rip->route_map[type].name
	186	\|\| (name != NULL && strcmp(rip->route_map[type].name, name)))
	187	return 1;
718e3744	188
d62a17ae	189	free(rip->route_map[type].name);
	190	rip->route_map[type].name = NULL;
	191	rip->route_map[type].map = NULL;
718e3744	192
d62a17ae	193	return 0;
718e3744	194	}
6b0655a2	195
718e3744	196	/* Redistribution types */
718e3744	197	static struct {
d62a17ae	198	int type;
	199	int str_min_len;
	200	const char *str;
	201	} redist_type[] = {{ZEBRA_ROUTE_KERNEL, 1, "kernel"},
	202	{ZEBRA_ROUTE_CONNECT, 1, "connected"},
	203	{ZEBRA_ROUTE_STATIC, 1, "static"},
	204	{ZEBRA_ROUTE_OSPF, 1, "ospf"},
	205	{ZEBRA_ROUTE_BGP, 2, "bgp"},
	206	{ZEBRA_ROUTE_VNC, 1, "vnc"},
	207	{0, 0, NULL}};
	208
	209	static int rip_redistribute_unset(int type)
718e3744	210	{
d62a17ae	211	if (!vrf_bitmap_check(zclient->redist[AFI_IP][type], VRF_DEFAULT))
d62a17ae	212	return CMD_SUCCESS;
718e3744	213
d62a17ae	214	vrf_bitmap_unset(zclient->redist[AFI_IP][type], VRF_DEFAULT);
718e3744	215
d62a17ae	216	if (zclient->sock > 0)
	217	zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE, zclient,
	218	AFI_IP, type, 0, VRF_DEFAULT);
718e3744	219
d62a17ae	220	/* Remove the routes from RIP table. */
d62a17ae	221	rip_redistribute_withdraw(type);
718e3744	222
d62a17ae	223	return CMD_SUCCESS;
718e3744	224	}
718e3744	225
d62a17ae	226	int rip_redistribute_check(int type)
718e3744	227	{
d62a17ae	228	return vrf_bitmap_check(zclient->redist[AFI_IP][type], VRF_DEFAULT);
718e3744	229	}
718e3744	230
d62a17ae	231	void rip_redistribute_clean(void)
718e3744	232	{
d62a17ae	233	int i;
	234
	235	for (i = 0; redist_type[i].str; i++) {
	236	if (vrf_bitmap_check(
	237	zclient->redist[AFI_IP][redist_type[i].type],
	238	VRF_DEFAULT)) {
	239	if (zclient->sock > 0)
	240	zebra_redistribute_send(
	241	ZEBRA_REDISTRIBUTE_DELETE, zclient,
	242	AFI_IP, redist_type[i].type, 0,
	243	VRF_DEFAULT);
	244
	245	vrf_bitmap_unset(
	246	zclient->redist[AFI_IP][redist_type[i].type],
	247	VRF_DEFAULT);
	248
	249	/* Remove the routes from RIP table. */
	250	rip_redistribute_withdraw(redist_type[i].type);
	251	}
718e3744	252	}
718e3744	253	}
718e3744	254
718e3744	255	DEFUN (rip_redistribute_type,
718e3744	256	rip_redistribute_type_cmd,
40d1cbfb	257	"redistribute " FRR_REDIST_STR_RIPD,
9a57dc69	258	REDIST_STR
ab0181ee	259	FRR_REDIST_HELP_STR_RIPD)
718e3744	260	{
d62a17ae	261	int i;
	262
	263	for (i = 0; redist_type[i].str; i++) {
	264	if (strncmp(redist_type[i].str, argv[1]->arg,
	265	redist_type[i].str_min_len)
	266	== 0) {
	267	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
	268	AFI_IP, redist_type[i].type, 0,
	269	VRF_DEFAULT);
	270	return CMD_SUCCESS;
	271	}
718e3744	272	}
718e3744	273
d62a17ae	274	vty_out(vty, "Invalid type %s\n", argv[1]->arg);
718e3744	275
d62a17ae	276	return CMD_WARNING_CONFIG_FAILED;
718e3744	277	}
	278
	279	DEFUN (no_rip_redistribute_type,
	280	no_rip_redistribute_type_cmd,
40d1cbfb	281	"no redistribute " FRR_REDIST_STR_RIPD,
718e3744	282	NO_STR
9a57dc69	283	REDIST_STR
ab0181ee	284	FRR_REDIST_HELP_STR_RIPD)
718e3744	285	{
d62a17ae	286	int i;
	287
	288	for (i = 0; redist_type[i].str; i++) {
	289	if (strncmp(redist_type[i].str, argv[2]->arg,
	290	redist_type[i].str_min_len)
	291	== 0) {
	292	rip_metric_unset(redist_type[i].type,
	293	DONT_CARE_METRIC_RIP);
	294	rip_routemap_unset(redist_type[i].type, NULL);
	295	rip_redistribute_unset(redist_type[i].type);
	296	return CMD_SUCCESS;
	297	}
	298	}
	299
	300	vty_out(vty, "Invalid type %s\n", argv[2]->arg);
	301
	302	return CMD_WARNING_CONFIG_FAILED;
718e3744	303	}
	304
	305	DEFUN (rip_redistribute_type_routemap,
	306	rip_redistribute_type_routemap_cmd,
40d1cbfb	307	"redistribute " FRR_REDIST_STR_RIPD " route-map WORD",
9a57dc69	308	REDIST_STR
ab0181ee	309	FRR_REDIST_HELP_STR_RIPD
718e3744	310	"Route map reference\n"
	311	"Pointer to route-map entries\n")
	312	{
d62a17ae	313	int idx_protocol = 1;
	314	int idx_word = 3;
	315	int i;
	316
	317	for (i = 0; redist_type[i].str; i++) {
	318	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	319	rip_routemap_set(redist_type[i].type,
	320	argv[idx_word]->arg);
	321	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
	322	AFI_IP, redist_type[i].type, 0,
	323	VRF_DEFAULT);
	324	return CMD_SUCCESS;
	325	}
	326	}
718e3744	327
d62a17ae	328	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
718e3744	329
d62a17ae	330	return CMD_WARNING_CONFIG_FAILED;
718e3744	331	}
	332
	333	DEFUN (no_rip_redistribute_type_routemap,
	334	no_rip_redistribute_type_routemap_cmd,
40d1cbfb	335	"no redistribute " FRR_REDIST_STR_RIPD " route-map WORD",
718e3744	336	NO_STR
9a57dc69	337	REDIST_STR
ab0181ee	338	FRR_REDIST_HELP_STR_RIPD
718e3744	339	"Route map reference\n"
	340	"Pointer to route-map entries\n")
	341	{
d62a17ae	342	int idx_protocol = 2;
	343	int idx_word = 4;
	344	int i;
	345
	346	for (i = 0; redist_type[i].str; i++) {
	347	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	348	if (rip_routemap_unset(redist_type[i].type,
	349	argv[idx_word]->arg))
	350	return CMD_WARNING_CONFIG_FAILED;
	351	rip_redistribute_unset(redist_type[i].type);
	352	return CMD_SUCCESS;
	353	}
	354	}
	355
	356	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
	357
	358	return CMD_WARNING_CONFIG_FAILED;
718e3744	359	}
	360
	361	DEFUN (rip_redistribute_type_metric,
	362	rip_redistribute_type_metric_cmd,
40d1cbfb	363	"redistribute " FRR_REDIST_STR_RIPD " metric (0-16)",
9a57dc69	364	REDIST_STR
ab0181ee	365	FRR_REDIST_HELP_STR_RIPD
718e3744	366	"Metric\n"
	367	"Metric value\n")
	368	{
d62a17ae	369	int idx_protocol = 1;
	370	int idx_number = 3;
	371	int i;
	372	int metric;
	373
	374	metric = atoi(argv[idx_number]->arg);
	375
	376	for (i = 0; redist_type[i].str; i++) {
	377	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	378	rip_redistribute_metric_set(redist_type[i].type,
	379	metric);
	380	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
	381	AFI_IP, redist_type[i].type, 0,
	382	VRF_DEFAULT);
	383	return CMD_SUCCESS;
	384	}
	385	}
718e3744	386
d62a17ae	387	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
718e3744	388
d62a17ae	389	return CMD_WARNING_CONFIG_FAILED;
718e3744	390	}
	391
	392	DEFUN (no_rip_redistribute_type_metric,
	393	no_rip_redistribute_type_metric_cmd,
40d1cbfb	394	"no redistribute " FRR_REDIST_STR_RIPD " metric (0-16)",
718e3744	395	NO_STR
9a57dc69	396	REDIST_STR
ab0181ee	397	FRR_REDIST_HELP_STR_RIPD
718e3744	398	"Metric\n"
	399	"Metric value\n")
	400	{
d62a17ae	401	int idx_protocol = 2;
	402	int idx_number = 4;
	403	int i;
	404
	405	for (i = 0; redist_type[i].str; i++) {
	406	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	407	if (rip_metric_unset(redist_type[i].type,
	408	atoi(argv[idx_number]->arg)))
	409	return CMD_WARNING_CONFIG_FAILED;
	410	rip_redistribute_unset(redist_type[i].type);
	411	return CMD_SUCCESS;
	412	}
	413	}
	414
	415	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
	416
	417	return CMD_WARNING_CONFIG_FAILED;
718e3744	418	}
718e3744	419
16705130	420	DEFUN (rip_redistribute_type_metric_routemap,
16705130	421	rip_redistribute_type_metric_routemap_cmd,
40d1cbfb	422	"redistribute " FRR_REDIST_STR_RIPD " metric (0-16) route-map WORD",
9a57dc69	423	REDIST_STR
ab0181ee	424	FRR_REDIST_HELP_STR_RIPD
16705130	425	"Metric\n"
	426	"Metric value\n"
	427	"Route map reference\n"
	428	"Pointer to route-map entries\n")
	429	{
d62a17ae	430	int idx_protocol = 1;
	431	int idx_number = 3;
	432	int idx_word = 5;
	433	int i;
	434	int metric;
	435
	436	metric = atoi(argv[idx_number]->arg);
	437
	438	for (i = 0; redist_type[i].str; i++) {
	439	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	440	rip_redistribute_metric_set(redist_type[i].type,
	441	metric);
	442	rip_routemap_set(redist_type[i].type,
	443	argv[idx_word]->arg);
	444	zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient,
	445	AFI_IP, redist_type[i].type, 0,
	446	VRF_DEFAULT);
	447	return CMD_SUCCESS;
	448	}
	449	}
16705130	450
d62a17ae	451	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
16705130	452
d62a17ae	453	return CMD_WARNING_CONFIG_FAILED;
16705130	454	}
	455
	456
718e3744	457	DEFUN (no_rip_redistribute_type_metric_routemap,
718e3744	458	no_rip_redistribute_type_metric_routemap_cmd,
40d1cbfb	459	"no redistribute " FRR_REDIST_STR_RIPD " metric (0-16) route-map WORD",
718e3744	460	NO_STR
9a57dc69	461	REDIST_STR
ab0181ee	462	FRR_REDIST_HELP_STR_RIPD
718e3744	463	"Metric\n"
	464	"Metric value\n"
	465	"Route map reference\n"
	466	"Pointer to route-map entries\n")
	467	{
d62a17ae	468	int idx_protocol = 2;
	469	int idx_number = 4;
	470	int idx_word = 6;
	471	int i;
	472
	473	for (i = 0; redist_type[i].str; i++) {
	474	if (strmatch(redist_type[i].str, argv[idx_protocol]->text)) {
	475	if (rip_metric_unset(redist_type[i].type,
	476	atoi(argv[idx_number]->arg)))
	477	return CMD_WARNING_CONFIG_FAILED;
	478	if (rip_routemap_unset(redist_type[i].type,
	479	argv[idx_word]->arg)) {
	480	rip_redistribute_metric_set(
	481	redist_type[i].type,
	482	atoi(argv[idx_number]->arg));
	483	return CMD_WARNING_CONFIG_FAILED;
	484	}
	485	rip_redistribute_unset(redist_type[i].type);
	486	return CMD_SUCCESS;
	487	}
	488	}
	489
	490	vty_out(vty, "Invalid type %s\n", argv[idx_protocol]->text);
	491
	492	return CMD_WARNING_CONFIG_FAILED;
718e3744	493	}
6b0655a2	494
718e3744	495	/* Default information originate. */
	496
	497	DEFUN (rip_default_information_originate,
	498	rip_default_information_originate_cmd,
	499	"default-information originate",
	500	"Control distribution of default route\n"
	501	"Distribute a default route\n")
	502	{
d62a17ae	503	struct prefix_ipv4 p;
	504
	505	if (!rip->default_information) {
	506	memset(&p, 0, sizeof(struct prefix_ipv4));
	507	p.family = AF_INET;
718e3744	508
d62a17ae	509	rip->default_information = 1;
718e3744	510
d62a17ae	511	rip_redistribute_add(ZEBRA_ROUTE_RIP, RIP_ROUTE_DEFAULT, &p, 0,
	512	NULL, 0, 0, 0);
	513	}
718e3744	514
d62a17ae	515	return CMD_SUCCESS;
718e3744	516	}
	517
	518	DEFUN (no_rip_default_information_originate,
	519	no_rip_default_information_originate_cmd,
	520	"no default-information originate",
	521	NO_STR
	522	"Control distribution of default route\n"
	523	"Distribute a default route\n")
	524	{
d62a17ae	525	struct prefix_ipv4 p;
	526
	527	if (rip->default_information) {
	528	memset(&p, 0, sizeof(struct prefix_ipv4));
	529	p.family = AF_INET;
718e3744	530
d62a17ae	531	rip->default_information = 0;
718e3744	532
d62a17ae	533	rip_redistribute_delete(ZEBRA_ROUTE_RIP, RIP_ROUTE_DEFAULT, &p,
	534	0);
	535	}
718e3744	536
d62a17ae	537	return CMD_SUCCESS;
718e3744	538	}
6b0655a2	539
d62a17ae	540	int config_write_rip_redistribute(struct vty *vty, int config_mode)
718e3744	541	{
d62a17ae	542	int i;
d62a17ae	543
d00061ea RW	544	for (i = 0; i < ZEBRA_ROUTE_MAX; i++) {
	545	if (i == zclient->redist_default
	546	\|\| !vrf_bitmap_check(zclient->redist[AFI_IP][i],
	547	VRF_DEFAULT))
	548	continue;
	549
	550	if (!config_mode) {
	551	vty_out(vty, " %s", zebra_route_string(i));
	552	continue;
	553	}
	554
	555	if (rip->route_map[i].metric_config) {
	556	if (rip->route_map[i].name)
	557	vty_out(vty,
	558	" redistribute %s metric %d route-map %s\n",
	559	zebra_route_string(i),
	560	rip->route_map[i].metric,
	561	rip->route_map[i].name);
	562	else
	563	vty_out(vty, " redistribute %s metric %d\n",
	564	zebra_route_string(i),
	565	rip->route_map[i].metric);
	566	} else {
	567	if (rip->route_map[i].name)
	568	vty_out(vty, " redistribute %s route-map %s\n",
	569	zebra_route_string(i),
	570	rip->route_map[i].name);
	571	else
	572	vty_out(vty, " redistribute %s\n",
	573	zebra_route_string(i));
d62a17ae	574	}
d00061ea RW	575	}
d00061ea RW	576
d62a17ae	577	return 0;
718e3744	578	}
718e3744	579
d62a17ae	580	static void rip_zebra_connected(struct zclient *zclient)
7076bb2f	581	{
d62a17ae	582	zclient_send_reg_requests(zclient, VRF_DEFAULT);
7076bb2f FL	583	}
7076bb2f FL	584
d62a17ae	585	void rip_zclient_init(struct thread_master *master)
718e3744	586	{
d62a17ae	587	/* Set default value to the zebra client structure. */
d62a17ae	588	zclient = zclient_new(master);
342213ea	589	zclient_init(zclient, ZEBRA_ROUTE_RIP, 0, &ripd_privs);
d62a17ae	590	zclient->zebra_connected = rip_zebra_connected;
	591	zclient->interface_add = rip_interface_add;
	592	zclient->interface_delete = rip_interface_delete;
	593	zclient->interface_address_add = rip_interface_address_add;
	594	zclient->interface_address_delete = rip_interface_address_delete;
	595	zclient->interface_up = rip_interface_up;
	596	zclient->interface_down = rip_interface_down;
74489921 RW	597	zclient->redistribute_route_add = rip_zebra_read_route;
74489921 RW	598	zclient->redistribute_route_del = rip_zebra_read_route;
d62a17ae	599
d62a17ae	600	/* Install command elements to rip node. */
	601	install_element(RIP_NODE, &rip_redistribute_type_cmd);
	602	install_element(RIP_NODE, &rip_redistribute_type_routemap_cmd);
	603	install_element(RIP_NODE, &rip_redistribute_type_metric_cmd);
	604	install_element(RIP_NODE, &rip_redistribute_type_metric_routemap_cmd);
	605	install_element(RIP_NODE, &no_rip_redistribute_type_cmd);
	606	install_element(RIP_NODE, &no_rip_redistribute_type_routemap_cmd);
	607	install_element(RIP_NODE, &no_rip_redistribute_type_metric_cmd);
	608	install_element(RIP_NODE,
	609	&no_rip_redistribute_type_metric_routemap_cmd);
	610	install_element(RIP_NODE, &rip_default_information_originate_cmd);
	611	install_element(RIP_NODE, &no_rip_default_information_originate_cmd);
718e3744	612	}
a2f9eb82	613
d62a17ae	614	void rip_zclient_stop(void)
a2f9eb82	615	{
d62a17ae	616	zclient_stop(zclient);
d62a17ae	617	zclient_free(zclient);
a2f9eb82	618	}