[mirror_frr.git] / pimd / pim_igmp_join.h

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * PIM for Quagga
 * Copyright (C) 2008  Everton da Silva Marques
 */

#ifndef PIM_IGMP_JOIN_H
#define PIM_IGMP_JOIN_H

#include "pim_addr.h"

/* required headers #include'd by caller */

#ifndef SOL_IP
#define SOL_IP IPPROTO_IP
#endif

#ifndef MCAST_JOIN_GROUP
#define MCAST_JOIN_GROUP 42
#endif

#ifndef MCAST_JOIN_SOURCE_GROUP
#define MCAST_JOIN_SOURCE_GROUP 46
struct group_source_req {
	uint32_t gsr_interface;
	struct sockaddr_storage gsr_group;
	struct sockaddr_storage gsr_source;
};
#endif

#if PIM_IPV == 4
static inline int pim_gm_join_source(int fd, ifindex_t ifindex,
				     pim_addr group_addr, pim_addr source_addr)
{
	struct group_source_req req;
	struct sockaddr_in group = {};
	struct sockaddr_in source = {};

	memset(&req, 0, sizeof(req));

	group.sin_family = PIM_AF;
	group.sin_addr = group_addr;
	group.sin_port = htons(0);
	memcpy(&req.gsr_group, &group, sizeof(group));

	source.sin_family = PIM_AF;
	source.sin_addr = source_addr;
	source.sin_port = htons(0);
	memcpy(&req.gsr_source, &source, sizeof(source));

	req.gsr_interface = ifindex;

	if (pim_addr_is_any(source_addr))
		return setsockopt(fd, SOL_IP, MCAST_JOIN_GROUP, &req,
				  sizeof(req));
	else
		return setsockopt(fd, SOL_IP, MCAST_JOIN_SOURCE_GROUP, &req,
				  sizeof(req));
}
#else  /* PIM_IPV != 4*/
static inline int pim_gm_join_source(int fd, ifindex_t ifindex,
				     pim_addr group_addr, pim_addr source_addr)
{
	struct group_source_req req;
	struct sockaddr_in6 group = {};
	struct sockaddr_in6 source = {};

	memset(&req, 0, sizeof(req));

	group.sin6_family = PIM_AF;
	group.sin6_addr = group_addr;
	group.sin6_port = htons(0);
	memcpy(&req.gsr_group, &group, sizeof(group));

	source.sin6_family = PIM_AF;
	source.sin6_addr = source_addr;
	source.sin6_port = htons(0);
	memcpy(&req.gsr_source, &source, sizeof(source));

	req.gsr_interface = ifindex;

	if (pim_addr_is_any(source_addr))
		return setsockopt(fd, SOL_IPV6, MCAST_JOIN_GROUP, &req,
				  sizeof(req));
	else
		return setsockopt(fd, SOL_IPV6, MCAST_JOIN_SOURCE_GROUP, &req,
				  sizeof(req));
}
#endif /* PIM_IPV != 4*/

#endif /* PIM_IGMP_JOIN_H */
Commit	Line	Data
acddc0ed	1	// SPDX-License-Identifier: GPL-2.0-or-later
12e41d03	2	/*
896014f4 DL	3	* PIM for Quagga
896014f4 DL	4	* Copyright (C) 2008 Everton da Silva Marques
896014f4	5	*/
12e41d03 DL	6
	7	#ifndef PIM_IGMP_JOIN_H
	8	#define PIM_IGMP_JOIN_H
	9
bd2c824a A	10	#include "pim_addr.h"
bd2c824a A	11
5ef104fc	12	/* required headers #include'd by caller */
12e41d03	13
5ef104fc DL	14	#ifndef SOL_IP
	15	#define SOL_IP IPPROTO_IP
	16	#endif
	17
771ce8ad LM	18	#ifndef MCAST_JOIN_GROUP
	19	#define MCAST_JOIN_GROUP 42
	20	#endif
	21
5ef104fc DL	22	#ifndef MCAST_JOIN_SOURCE_GROUP
5ef104fc DL	23	#define MCAST_JOIN_SOURCE_GROUP 46
d62a17ae	24	struct group_source_req {
	25	uint32_t gsr_interface;
	26	struct sockaddr_storage gsr_group;
	27	struct sockaddr_storage gsr_source;
5ef104fc DL	28	};
	29	#endif
	30
bd2c824a A	31	#if PIM_IPV == 4
	32	static inline int pim_gm_join_source(int fd, ifindex_t ifindex,
	33	pim_addr group_addr, pim_addr source_addr)
5ef104fc	34	{
d62a17ae	35	struct group_source_req req;
bd2c824a A	36	struct sockaddr_in group = {};
bd2c824a A	37	struct sockaddr_in source = {};
5ef104fc	38
d62a17ae	39	memset(&req, 0, sizeof(req));
bd2c824a A	40
bd2c824a A	41	group.sin_family = PIM_AF;
d62a17ae	42	group.sin_addr = group_addr;
d62a17ae	43	group.sin_port = htons(0);
bd2c824a	44	memcpy(&req.gsr_group, &group, sizeof(group));
5ef104fc	45
bd2c824a	46	source.sin_family = PIM_AF;
d62a17ae	47	source.sin_addr = source_addr;
d62a17ae	48	source.sin_port = htons(0);
bd2c824a	49	memcpy(&req.gsr_source, &source, sizeof(source));
5ef104fc	50
d62a17ae	51	req.gsr_interface = ifindex;
5ef104fc	52
bd2c824a	53	if (pim_addr_is_any(source_addr))
771ce8ad LM	54	return setsockopt(fd, SOL_IP, MCAST_JOIN_GROUP, &req,
	55	sizeof(req));
	56	else
	57	return setsockopt(fd, SOL_IP, MCAST_JOIN_SOURCE_GROUP, &req,
	58	sizeof(req));
5ef104fc	59	}
bd2c824a A	60	#else /* PIM_IPV != 4*/
	61	static inline int pim_gm_join_source(int fd, ifindex_t ifindex,
	62	pim_addr group_addr, pim_addr source_addr)
	63	{
	64	struct group_source_req req;
	65	struct sockaddr_in6 group = {};
	66	struct sockaddr_in6 source = {};
	67
	68	memset(&req, 0, sizeof(req));
	69
	70	group.sin6_family = PIM_AF;
	71	group.sin6_addr = group_addr;
	72	group.sin6_port = htons(0);
	73	memcpy(&req.gsr_group, &group, sizeof(group));
	74
	75	source.sin6_family = PIM_AF;
	76	source.sin6_addr = source_addr;
	77	source.sin6_port = htons(0);
	78	memcpy(&req.gsr_source, &source, sizeof(source));
	79
	80	req.gsr_interface = ifindex;
	81
	82	if (pim_addr_is_any(source_addr))
	83	return setsockopt(fd, SOL_IPV6, MCAST_JOIN_GROUP, &req,
	84	sizeof(req));
	85	else
	86	return setsockopt(fd, SOL_IPV6, MCAST_JOIN_SOURCE_GROUP, &req,
	87	sizeof(req));
	88	}
	89	#endif /* PIM_IPV != 4*/
12e41d03 DL	90
12e41d03 DL	91	#endif /* PIM_IGMP_JOIN_H */