[mirror_frr.git] / pimd / pim_static.c

/*
 * PIM for Quagga: add the ability to configure multicast static routes
 * Copyright (C) 2014  Nathan Bahr, ATCorp
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 "vty.h"
#include "if.h"
#include "log.h"
#include "memory.h"
#include "linklist.h"

#include "pimd.h"
#include "pim_oil.h"
#include "pim_static.h"
#include "pim_time.h"
#include "pim_str.h"
#include "pim_iface.h"

void pim_static_route_free(struct static_route *s_route)
{
	XFREE(MTYPE_PIM_STATIC_ROUTE, s_route);
}

static struct static_route *static_route_alloc()
{
	struct static_route *s_route;

	s_route = XCALLOC(MTYPE_PIM_STATIC_ROUTE, sizeof(*s_route));
	if (!s_route) {
		zlog_err("PIM XCALLOC(%zu) failure", sizeof(*s_route));
		return 0;
	}
	return s_route;
}

static struct static_route *static_route_new(unsigned int iif, unsigned int oif,
					     struct in_addr group,
					     struct in_addr source)
{
	struct static_route *s_route;
	s_route = static_route_alloc();
	if (!s_route) {
		return 0;
	}

	s_route->group = group;
	s_route->source = source;
	s_route->iif = iif;
	s_route->oif_ttls[oif] = 1;
	s_route->c_oil.oil_ref_count = 1;
	s_route->c_oil.oil.mfcc_origin = source;
	s_route->c_oil.oil.mfcc_mcastgrp = group;
	s_route->c_oil.oil.mfcc_parent = iif;
	s_route->c_oil.oil.mfcc_ttls[oif] = 1;
	s_route->c_oil.oif_creation[oif] = pim_time_monotonic_sec();

	return s_route;
}


int pim_static_add(struct interface *iif, struct interface *oif,
		   struct in_addr group, struct in_addr source)
{
	struct listnode *node = NULL;
	struct static_route *s_route = NULL;
	struct static_route *original_s_route = NULL;
	struct pim_interface *pim_iif = iif ? iif->info : NULL;
	struct pim_interface *pim_oif = oif ? oif->info : NULL;
	ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;
	ifindex_t oif_index = pim_oif ? pim_oif->mroute_vif_index : 0;

	if (!iif_index || !oif_index) {
		zlog_warn(
			"%s %s: Unable to add static route: Invalid interface index(iif=%d,oif=%d)",
			__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
		return -2;
	}

#ifdef PIM_ENFORCE_LOOPFREE_MFC
	if (iif_index == oif_index) {
		/* looped MFC entry */
		zlog_warn(
			"%s %s: Unable to add static route: Looped MFC entry(iif=%d,oif=%d)",
			__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
		return -4;
	}
#endif

	for (ALL_LIST_ELEMENTS_RO(qpim_static_route_list, node, s_route)) {
		if (s_route->group.s_addr == group.s_addr
		    && s_route->source.s_addr == source.s_addr) {
			if (s_route->iif == iif_index
			    && s_route->oif_ttls[oif_index]) {
				char gifaddr_str[INET_ADDRSTRLEN];
				char sifaddr_str[INET_ADDRSTRLEN];
				pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
					       sizeof(gifaddr_str));
				pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
					       sizeof(sifaddr_str));
				zlog_warn(
					"%s %s: Unable to add static route: Route already exists (iif=%d,oif=%d,group=%s,source=%s)",
					__FILE__, __PRETTY_FUNCTION__,
					iif_index, oif_index, gifaddr_str,
					sifaddr_str);
				return -3;
			}

			/* Ok, from here on out we will be making changes to the
			 * s_route structure, but if
			 * for some reason we fail to commit these changes to
			 * the kernel, we want to be able
			 * restore the state of the list. So copy the node data
			 * and if need be, we can copy
			 * back if it fails.
			 */
			original_s_route = static_route_alloc();
			if (!original_s_route) {
				return -5;
			}
			memcpy(original_s_route, s_route,
			       sizeof(struct static_route));

			/* Route exists and has the same input interface, but
			 * adding a new output interface */
			if (s_route->iif == iif_index) {
				s_route->oif_ttls[oif_index] = 1;
				s_route->c_oil.oil.mfcc_ttls[oif_index] = 1;
				s_route->c_oil.oif_creation[oif_index] =
					pim_time_monotonic_sec();
				++s_route->c_oil.oil_ref_count;
			} else {
				/* input interface changed */
				s_route->iif = iif_index;
				s_route->c_oil.oil.mfcc_parent = iif_index;

#ifdef PIM_ENFORCE_LOOPFREE_MFC
				/* check to make sure the new input was not an
				 * old output */
				if (s_route->oif_ttls[iif_index]) {
					s_route->oif_ttls[iif_index] = 0;
					s_route->c_oil.oif_creation[iif_index] =
						0;
					s_route->c_oil.oil
						.mfcc_ttls[iif_index] = 0;
					--s_route->c_oil.oil_ref_count;
				}
#endif

				/* now add the new output, if it is new */
				if (!s_route->oif_ttls[oif_index]) {
					s_route->oif_ttls[oif_index] = 1;
					s_route->c_oil.oif_creation[oif_index] =
						pim_time_monotonic_sec();
					s_route->c_oil.oil
						.mfcc_ttls[oif_index] = 1;
					++s_route->c_oil.oil_ref_count;
				}
			}

			break;
		}
	}

	/* If node is null then we reached the end of the list without finding a
	 * match */
	if (!node) {
		s_route = static_route_new(iif_index, oif_index, group, source);
		listnode_add(qpim_static_route_list, s_route);
	}

	if (pim_mroute_add(&s_route->c_oil, __PRETTY_FUNCTION__)) {
		char gifaddr_str[INET_ADDRSTRLEN];
		char sifaddr_str[INET_ADDRSTRLEN];
		pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
			       sizeof(gifaddr_str));
		pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
			       sizeof(sifaddr_str));
		zlog_warn(
			"%s %s: Unable to add static route(iif=%d,oif=%d,group=%s,source=%s)",
			__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index,
			gifaddr_str, sifaddr_str);

		/* Need to put s_route back to the way it was */
		if (original_s_route) {
			memcpy(s_route, original_s_route,
			       sizeof(struct static_route));
		} else {
			/* we never stored off a copy, so it must have been a
			 * fresh new route */
			listnode_delete(qpim_static_route_list, s_route);
			pim_static_route_free(s_route);
		}

		if (original_s_route) {
			pim_static_route_free(original_s_route);
		}

		return -1;
	}

	/* Make sure we free the memory for the route copy if used */
	if (original_s_route) {
		pim_static_route_free(original_s_route);
	}

	if (PIM_DEBUG_STATIC) {
		char gifaddr_str[INET_ADDRSTRLEN];
		char sifaddr_str[INET_ADDRSTRLEN];
		pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
			       sizeof(gifaddr_str));
		pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
			       sizeof(sifaddr_str));
		zlog_debug(
			"%s: Static route added(iif=%d,oif=%d,group=%s,source=%s)",
			__PRETTY_FUNCTION__, iif_index, oif_index, gifaddr_str,
			sifaddr_str);
	}

	return 0;
}

int pim_static_del(struct interface *iif, struct interface *oif,
		   struct in_addr group, struct in_addr source)
{
	struct listnode *node = NULL;
	struct listnode *nextnode = NULL;
	struct static_route *s_route = NULL;
	struct pim_interface *pim_iif = iif ? iif->info : 0;
	struct pim_interface *pim_oif = oif ? oif->info : 0;
	ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;
	ifindex_t oif_index = pim_oif ? pim_oif->mroute_vif_index : 0;

	if (!iif_index || !oif_index) {
		zlog_warn(
			"%s %s: Unable to remove static route: Invalid interface index(iif=%d,oif=%d)",
			__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
		return -2;
	}

	for (ALL_LIST_ELEMENTS(qpim_static_route_list, node, nextnode,
			       s_route)) {
		if (s_route->iif == iif_index
		    && s_route->group.s_addr == group.s_addr
		    && s_route->source.s_addr == source.s_addr
		    && s_route->oif_ttls[oif_index]) {
			s_route->oif_ttls[oif_index] = 0;
			s_route->c_oil.oil.mfcc_ttls[oif_index] = 0;
			--s_route->c_oil.oil_ref_count;

			/* If there are no more outputs then delete the whole
			 * route, otherwise set the route with the new outputs
			 */
			if (s_route->c_oil.oil_ref_count <= 0
				    ? pim_mroute_del(&s_route->c_oil,
						     __PRETTY_FUNCTION__)
				    : pim_mroute_add(&s_route->c_oil,
						     __PRETTY_FUNCTION__)) {
				char gifaddr_str[INET_ADDRSTRLEN];
				char sifaddr_str[INET_ADDRSTRLEN];
				pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
					       sizeof(gifaddr_str));
				pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
					       sizeof(sifaddr_str));
				zlog_warn(
					"%s %s: Unable to remove static route(iif=%d,oif=%d,group=%s,source=%s)",
					__FILE__, __PRETTY_FUNCTION__,
					iif_index, oif_index, gifaddr_str,
					sifaddr_str);

				s_route->oif_ttls[oif_index] = 1;
				s_route->c_oil.oil.mfcc_ttls[oif_index] = 1;
				++s_route->c_oil.oil_ref_count;

				return -1;
			}

			s_route->c_oil.oif_creation[oif_index] = 0;

			if (s_route->c_oil.oil_ref_count <= 0) {
				listnode_delete(qpim_static_route_list,
						s_route);
				pim_static_route_free(s_route);
			}

			if (PIM_DEBUG_STATIC) {
				char gifaddr_str[INET_ADDRSTRLEN];
				char sifaddr_str[INET_ADDRSTRLEN];
				pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
					       sizeof(gifaddr_str));
				pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
					       sizeof(sifaddr_str));
				zlog_debug(
					"%s: Static route removed(iif=%d,oif=%d,group=%s,source=%s)",
					__PRETTY_FUNCTION__, iif_index,
					oif_index, gifaddr_str, sifaddr_str);
			}

			break;
		}
	}

	if (!node) {
		char gifaddr_str[INET_ADDRSTRLEN];
		char sifaddr_str[INET_ADDRSTRLEN];
		pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
			       sizeof(gifaddr_str));
		pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
			       sizeof(sifaddr_str));
		zlog_warn(
			"%s %s: Unable to remove static route: Route does not exist(iif=%d,oif=%d,group=%s,source=%s)",
			__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index,
			gifaddr_str, sifaddr_str);
		return -3;
	}

	return 0;
}

int pim_static_write_mroute(struct vty *vty, struct interface *ifp)
{
	struct pim_interface *pim_ifp = ifp->info;
	struct listnode *node;
	struct static_route *sroute;
	int count = 0;
	char sbuf[INET_ADDRSTRLEN];
	char gbuf[INET_ADDRSTRLEN];

	if (!pim_ifp)
		return 0;

	for (ALL_LIST_ELEMENTS_RO(qpim_static_route_list, node, sroute)) {
		pim_inet4_dump("<ifaddr?>", sroute->group, gbuf, sizeof(gbuf));
		pim_inet4_dump("<ifaddr?>", sroute->source, sbuf, sizeof(sbuf));
		if (sroute->iif == pim_ifp->mroute_vif_index) {
			int i;
			for (i = 0; i < MAXVIFS; i++)
				if (sroute->oif_ttls[i]) {
					struct interface *oifp =
						pim_if_find_by_vif_index(i);
					if (sroute->source.s_addr == 0)
						vty_out(vty,
							" ip mroute %s %s\n",
							oifp->name, gbuf);
					else
						vty_out(vty,
							" ip mroute %s %s %s\n",
							oifp->name, gbuf, sbuf);
					count++;
				}
		}
	}

	return count;
}
Commit	Line	Data
6250610a	1	/*
896014f4 DL	2	* PIM for Quagga: add the ability to configure multicast static routes
	3	* Copyright (C) 2014 Nathan Bahr, ATCorp
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along
	16	* with this program; see the file COPYING; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
6250610a	19
f91f89bc DS	20	#include <zebra.h>
	21
	22	#include "vty.h"
744d91b3	23	#include "if.h"
9867746a DS	24	#include "log.h"
	25	#include "memory.h"
	26	#include "linklist.h"
f91f89bc	27
9867746a DS	28	#include "pimd.h"
9867746a DS	29	#include "pim_oil.h"
6250610a JAG	30	#include "pim_static.h"
	31	#include "pim_time.h"
	32	#include "pim_str.h"
6250610a	33	#include "pim_iface.h"
6250610a JAG	34
	35	void pim_static_route_free(struct static_route *s_route)
	36	{
d62a17ae	37	XFREE(MTYPE_PIM_STATIC_ROUTE, s_route);
6250610a JAG	38	}
6250610a JAG	39
d62a17ae	40	static struct static_route *static_route_alloc()
6250610a	41	{
d62a17ae	42	struct static_route *s_route;
	43
	44	s_route = XCALLOC(MTYPE_PIM_STATIC_ROUTE, sizeof(*s_route));
	45	if (!s_route) {
	46	zlog_err("PIM XCALLOC(%zu) failure", sizeof(*s_route));
	47	return 0;
	48	}
	49	return s_route;
6250610a JAG	50	}
6250610a JAG	51
d62a17ae	52	static struct static_route *static_route_new(unsigned int iif, unsigned int oif,
	53	struct in_addr group,
	54	struct in_addr source)
6250610a	55	{
d62a17ae	56	struct static_route *s_route;
	57	s_route = static_route_alloc();
	58	if (!s_route) {
	59	return 0;
	60	}
	61
	62	s_route->group = group;
	63	s_route->source = source;
	64	s_route->iif = iif;
	65	s_route->oif_ttls[oif] = 1;
	66	s_route->c_oil.oil_ref_count = 1;
	67	s_route->c_oil.oil.mfcc_origin = source;
	68	s_route->c_oil.oil.mfcc_mcastgrp = group;
	69	s_route->c_oil.oil.mfcc_parent = iif;
	70	s_route->c_oil.oil.mfcc_ttls[oif] = 1;
	71	s_route->c_oil.oif_creation[oif] = pim_time_monotonic_sec();
	72
	73	return s_route;
6250610a JAG	74	}
	75
	76
d62a17ae	77	int pim_static_add(struct interface iif, struct interface oif,
d62a17ae	78	struct in_addr group, struct in_addr source)
6250610a	79	{
d62a17ae	80	struct listnode *node = NULL;
	81	struct static_route *s_route = NULL;
	82	struct static_route *original_s_route = NULL;
	83	struct pim_interface *pim_iif = iif ? iif->info : NULL;
	84	struct pim_interface *pim_oif = oif ? oif->info : NULL;
	85	ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;
	86	ifindex_t oif_index = pim_oif ? pim_oif->mroute_vif_index : 0;
	87
	88	if (!iif_index \|\| !oif_index) {
	89	zlog_warn(
	90	"%s %s: Unable to add static route: Invalid interface index(iif=%d,oif=%d)",
	91	__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
	92	return -2;
	93	}
6250610a JAG	94
6250610a JAG	95	#ifdef PIM_ENFORCE_LOOPFREE_MFC
d62a17ae	96	if (iif_index == oif_index) {
	97	/* looped MFC entry */
	98	zlog_warn(
	99	"%s %s: Unable to add static route: Looped MFC entry(iif=%d,oif=%d)",
	100	__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
	101	return -4;
	102	}
6250610a JAG	103	#endif
6250610a JAG	104
d62a17ae	105	for (ALL_LIST_ELEMENTS_RO(qpim_static_route_list, node, s_route)) {
	106	if (s_route->group.s_addr == group.s_addr
	107	&& s_route->source.s_addr == source.s_addr) {
	108	if (s_route->iif == iif_index
	109	&& s_route->oif_ttls[oif_index]) {
	110	char gifaddr_str[INET_ADDRSTRLEN];
	111	char sifaddr_str[INET_ADDRSTRLEN];
	112	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
	113	sizeof(gifaddr_str));
	114	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
	115	sizeof(sifaddr_str));
	116	zlog_warn(
	117	"%s %s: Unable to add static route: Route already exists (iif=%d,oif=%d,group=%s,source=%s)",
	118	__FILE__, __PRETTY_FUNCTION__,
	119	iif_index, oif_index, gifaddr_str,
	120	sifaddr_str);
	121	return -3;
	122	}
	123
	124	/* Ok, from here on out we will be making changes to the
	125	* s_route structure, but if
	126	* for some reason we fail to commit these changes to
	127	* the kernel, we want to be able
	128	* restore the state of the list. So copy the node data
	129	* and if need be, we can copy
	130	* back if it fails.
	131	*/
	132	original_s_route = static_route_alloc();
	133	if (!original_s_route) {
	134	return -5;
	135	}
	136	memcpy(original_s_route, s_route,
	137	sizeof(struct static_route));
	138
	139	/* Route exists and has the same input interface, but
	140	* adding a new output interface */
	141	if (s_route->iif == iif_index) {
	142	s_route->oif_ttls[oif_index] = 1;
	143	s_route->c_oil.oil.mfcc_ttls[oif_index] = 1;
	144	s_route->c_oil.oif_creation[oif_index] =
	145	pim_time_monotonic_sec();
	146	++s_route->c_oil.oil_ref_count;
	147	} else {
	148	/* input interface changed */
	149	s_route->iif = iif_index;
	150	s_route->c_oil.oil.mfcc_parent = iif_index;
6250610a JAG	151
6250610a JAG	152	#ifdef PIM_ENFORCE_LOOPFREE_MFC
d62a17ae	153	/* check to make sure the new input was not an
	154	* old output */
	155	if (s_route->oif_ttls[iif_index]) {
	156	s_route->oif_ttls[iif_index] = 0;
	157	s_route->c_oil.oif_creation[iif_index] =
	158	0;
	159	s_route->c_oil.oil
	160	.mfcc_ttls[iif_index] = 0;
	161	--s_route->c_oil.oil_ref_count;
	162	}
6250610a JAG	163	#endif
6250610a JAG	164
d62a17ae	165	/* now add the new output, if it is new */
	166	if (!s_route->oif_ttls[oif_index]) {
	167	s_route->oif_ttls[oif_index] = 1;
	168	s_route->c_oil.oif_creation[oif_index] =
	169	pim_time_monotonic_sec();
	170	s_route->c_oil.oil
	171	.mfcc_ttls[oif_index] = 1;
	172	++s_route->c_oil.oil_ref_count;
	173	}
	174	}
	175
	176	break;
	177	}
	178	}
	179
	180	/* If node is null then we reached the end of the list without finding a
	181	* match */
	182	if (!node) {
	183	s_route = static_route_new(iif_index, oif_index, group, source);
	184	listnode_add(qpim_static_route_list, s_route);
	185	}
	186
	187	if (pim_mroute_add(&s_route->c_oil, __PRETTY_FUNCTION__)) {
	188	char gifaddr_str[INET_ADDRSTRLEN];
	189	char sifaddr_str[INET_ADDRSTRLEN];
	190	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
	191	sizeof(gifaddr_str));
	192	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
	193	sizeof(sifaddr_str));
	194	zlog_warn(
	195	"%s %s: Unable to add static route(iif=%d,oif=%d,group=%s,source=%s)",
	196	__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index,
	197	gifaddr_str, sifaddr_str);
	198
	199	/* Need to put s_route back to the way it was */
	200	if (original_s_route) {
	201	memcpy(s_route, original_s_route,
	202	sizeof(struct static_route));
	203	} else {
	204	/* we never stored off a copy, so it must have been a
	205	* fresh new route */
	206	listnode_delete(qpim_static_route_list, s_route);
	207	pim_static_route_free(s_route);
	208	}
	209
	210	if (original_s_route) {
	211	pim_static_route_free(original_s_route);
	212	}
	213
	214	return -1;
	215	}
	216
	217	/* Make sure we free the memory for the route copy if used */
	218	if (original_s_route) {
	219	pim_static_route_free(original_s_route);
	220	}
	221
	222	if (PIM_DEBUG_STATIC) {
	223	char gifaddr_str[INET_ADDRSTRLEN];
	224	char sifaddr_str[INET_ADDRSTRLEN];
	225	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
	226	sizeof(gifaddr_str));
	227	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
	228	sizeof(sifaddr_str));
229	zlog_debug(
230	"%s: Static route added(iif=%d,oif=%d,group=%s,source=%s)",
231	__PRETTY_FUNCTION__, iif_index, oif_index, gifaddr_str,
232	sifaddr_str);
233	}
234
235	return 0;
6250610a JAG	236	}
6250610a JAG	237
d62a17ae	238	int pim_static_del(struct interface iif, struct interface oif,
d62a17ae	239	struct in_addr group, struct in_addr source)
6250610a	240	{
d62a17ae	241	struct listnode *node = NULL;
	242	struct listnode *nextnode = NULL;
	243	struct static_route *s_route = NULL;
	244	struct pim_interface *pim_iif = iif ? iif->info : 0;
	245	struct pim_interface *pim_oif = oif ? oif->info : 0;
	246	ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;
	247	ifindex_t oif_index = pim_oif ? pim_oif->mroute_vif_index : 0;
	248
	249	if (!iif_index \|\| !oif_index) {
	250	zlog_warn(
	251	"%s %s: Unable to remove static route: Invalid interface index(iif=%d,oif=%d)",
	252	__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index);
	253	return -2;
	254	}
	255
	256	for (ALL_LIST_ELEMENTS(qpim_static_route_list, node, nextnode,
	257	s_route)) {
	258	if (s_route->iif == iif_index
	259	&& s_route->group.s_addr == group.s_addr
	260	&& s_route->source.s_addr == source.s_addr
	261	&& s_route->oif_ttls[oif_index]) {
	262	s_route->oif_ttls[oif_index] = 0;
	263	s_route->c_oil.oil.mfcc_ttls[oif_index] = 0;
	264	--s_route->c_oil.oil_ref_count;
	265
	266	/* If there are no more outputs then delete the whole
	267	* route, otherwise set the route with the new outputs
	268	*/
	269	if (s_route->c_oil.oil_ref_count <= 0
	270	? pim_mroute_del(&s_route->c_oil,
	271	__PRETTY_FUNCTION__)
	272	: pim_mroute_add(&s_route->c_oil,
	273	__PRETTY_FUNCTION__)) {
	274	char gifaddr_str[INET_ADDRSTRLEN];
	275	char sifaddr_str[INET_ADDRSTRLEN];
	276	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
	277	sizeof(gifaddr_str));
	278	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
	279	sizeof(sifaddr_str));
	280	zlog_warn(
	281	"%s %s: Unable to remove static route(iif=%d,oif=%d,group=%s,source=%s)",
	282	__FILE__, __PRETTY_FUNCTION__,
	283	iif_index, oif_index, gifaddr_str,
	284	sifaddr_str);
	285
	286	s_route->oif_ttls[oif_index] = 1;
	287	s_route->c_oil.oil.mfcc_ttls[oif_index] = 1;
	288	++s_route->c_oil.oil_ref_count;
	289
	290	return -1;
	291	}
	292
	293	s_route->c_oil.oif_creation[oif_index] = 0;
	294
	295	if (s_route->c_oil.oil_ref_count <= 0) {
	296	listnode_delete(qpim_static_route_list,
	297	s_route);
	298	pim_static_route_free(s_route);
	299	}
	300
	301	if (PIM_DEBUG_STATIC) {
	302	char gifaddr_str[INET_ADDRSTRLEN];
	303	char sifaddr_str[INET_ADDRSTRLEN];
	304	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
305	sizeof(gifaddr_str));
306	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
307	sizeof(sifaddr_str));
308	zlog_debug(
309	"%s: Static route removed(iif=%d,oif=%d,group=%s,source=%s)",
310	__PRETTY_FUNCTION__, iif_index,
311	oif_index, gifaddr_str, sifaddr_str);
312	}
313
314	break;
315	}
316	}
317
318	if (!node) {
319	char gifaddr_str[INET_ADDRSTRLEN];
320	char sifaddr_str[INET_ADDRSTRLEN];
321	pim_inet4_dump("<ifaddr?>", group, gifaddr_str,
322	sizeof(gifaddr_str));
323	pim_inet4_dump("<ifaddr?>", source, sifaddr_str,
324	sizeof(sifaddr_str));
325	zlog_warn(
326	"%s %s: Unable to remove static route: Route does not exist(iif=%d,oif=%d,group=%s,source=%s)",
327	__FILE__, __PRETTY_FUNCTION__, iif_index, oif_index,
328	gifaddr_str, sifaddr_str);
329	return -3;
330	}
331
332	return 0;
6250610a	333	}
f91f89bc	334
d62a17ae	335	int pim_static_write_mroute(struct vty vty, struct interface ifp)
f91f89bc	336	{
d62a17ae	337	struct pim_interface *pim_ifp = ifp->info;
	338	struct listnode *node;
	339	struct static_route *sroute;
	340	int count = 0;
	341	char sbuf[INET_ADDRSTRLEN];
	342	char gbuf[INET_ADDRSTRLEN];
	343
	344	if (!pim_ifp)
	345	return 0;
	346
	347	for (ALL_LIST_ELEMENTS_RO(qpim_static_route_list, node, sroute)) {
	348	pim_inet4_dump("<ifaddr?>", sroute->group, gbuf, sizeof(gbuf));
	349	pim_inet4_dump("<ifaddr?>", sroute->source, sbuf, sizeof(sbuf));
	350	if (sroute->iif == pim_ifp->mroute_vif_index) {
	351	int i;
	352	for (i = 0; i < MAXVIFS; i++)
	353	if (sroute->oif_ttls[i]) {
	354	struct interface *oifp =
	355	pim_if_find_by_vif_index(i);
	356	if (sroute->source.s_addr == 0)
	357	vty_out(vty,
	358	" ip mroute %s %s\n",
	359	oifp->name, gbuf);
	360	else
	361	vty_out(vty,
	362	" ip mroute %s %s %s\n",
	363	oifp->name, gbuf, sbuf);
	364	count++;
	365	}
	366	}
	367	}
	368
	369	return count;
f91f89bc	370	}