/*
* Copyright (c) 2018 Cumulus Networks. All rights reserved.
* Copyright (c) 2018 David Ahern <dsa@cumulusnetworks.com>
*
* This software is licensed under the GNU General License Version 2,
* June 1991 as shown in the file COPYING in the top-level directory of this
* source tree.
*
* THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
* OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
* THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
*/
#include <linux/in6.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/rhashtable.h>
#include <linux/spinlock_types.h>
#include <linux/types.h>
#include <net/fib_notifier.h>
#include <net/ip_fib.h>
#include <net/ip6_fib.h>
#include <net/fib_rules.h>
#include <net/net_namespace.h>
#include <net/nexthop.h>
#include "netdevsim.h"
struct nsim_fib_entry {
u64 max;
atomic64_t num;
};
struct nsim_per_fib_data {
struct nsim_fib_entry fib;
struct nsim_fib_entry rules;
};
struct nsim_fib_data {
struct notifier_block fib_nb;
struct nsim_per_fib_data ipv4;
struct nsim_per_fib_data ipv6;
struct nsim_fib_entry nexthops;
struct rhashtable fib_rt_ht;
struct list_head fib_rt_list;
struct mutex fib_lock; /* Protects hashtable and list */
struct notifier_block nexthop_nb;
struct rhashtable nexthop_ht;
struct devlink *devlink;
struct work_struct fib_event_work;
struct list_head fib_event_queue;
spinlock_t fib_event_queue_lock; /* Protects fib event queue list */
};
struct nsim_fib_rt_key {
unsigned char addr[sizeof(struct in6_addr)];
unsigned char prefix_len;
int family;
u32 tb_id;
};
struct nsim_fib_rt {
struct nsim_fib_rt_key key;
struct rhash_head ht_node;
struct list_head list; /* Member of fib_rt_list */
};
struct nsim_fib4_rt {
struct nsim_fib_rt common;
struct fib_info *fi;
u8 tos;
u8 type;
};
struct nsim_fib6_rt {
struct nsim_fib_rt common;
struct list_head nh_list;
unsigned int nhs;
};
struct nsim_fib6_rt_nh {
struct list_head list; /* Member of nh_list */
struct fib6_info *rt;
};
struct nsim_fib6_event {
