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/*
* Author: Steven Barth <steven at midlink.org>
*
* Copyright 2015 Deutsche Telekom AG
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#pragma once
#include <netinet/in.h>
#include <libubox/list.h>
#include <sys/socket.h>
#include <netinet/icmp6.h>
#define icmp6_filter icmpv6_filter
#include <linux/igmp.h>
#include <linux/icmpv6.h>
#undef icmp6_filter
#define MRIB_DEFAULT_LIFETIME 125
#define IPV6_ALL_NODES_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x1 } } }
#define INADDR_ALLIGMPV3RTRS_GROUP cpu_to_be32(0xe0000016U)
typedef uint32_t mrib_filter;
struct mrib_iface;
struct mrib_user;
struct mrib_querier;
typedef void(mrib_cb)(struct mrib_user *user, const struct in6_addr *group,
const struct in6_addr *source, mrib_filter *filter);
typedef void(mrib_igmp_cb)(struct mrib_querier *mrib, const struct igmphdr *igmp, size_t len,
const struct sockaddr_in *from);
typedef void(mrib_mld_cb)(struct mrib_querier *mrib, const struct mld_hdr *mld, size_t len,
const struct sockaddr_in6 *from);
struct mrib_user {
struct list_head head;
struct mrib_iface *iface;
mrib_cb *cb_newsource;
};
struct mrib_querier {
struct list_head head;
struct mrib_iface *iface;
mrib_igmp_cb *cb_igmp;
mrib_mld_cb *cb_mld;
};
// Register a new user to mrib
int mrib_attach_user(struct mrib_user *user, int ifindex, mrib_cb *cb_newsource);
// Deregister a user from mrib
void mrib_detach_user(struct mrib_user *user);
// Register a querier to mrib
int mrib_attach_querier(struct mrib_querier *querier, int ifindex, mrib_igmp_cb *cb_igmp, mrib_mld_cb *cb_mld);
// Deregister a querier from mrib
void mrib_detach_querier(struct mrib_querier *querier);
// Flush state for a multicast route
int mrib_flush(struct mrib_user *user, const struct in6_addr *group, uint8_t group_plen, const struct in6_addr *source);
// Add interface to filter
int mrib_filter_add(mrib_filter *filter, struct mrib_user *user);
// Send IGMP-packet
int mrib_send_igmp(struct mrib_querier *querier, struct igmpv3_query *igmp, size_t len,
const struct sockaddr_in *dest);
// Send MLD-packet
int mrib_send_mld(struct mrib_querier *querier, struct mld_hdr *mld, size_t len,
const struct sockaddr_in6 *dest);
// Get source address
int mrib_mld_source(struct mrib_querier *q, struct in6_addr *source);
int mrib_igmp_source(struct mrib_querier *q, struct in_addr *source);
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