linux/drivers/net/vxlan/vxlan_vnifilter.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *	Vxlan vni filter for collect metadata mode
 *
 *	Authors: Roopa Prabhu <[email protected]>
 *
 */

#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/etherdevice.h>
#include <linux/rhashtable.h>
#include <net/rtnetlink.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/vxlan.h>

#include "vxlan_private.h"

static inline int vxlan_vni_cmp(struct rhashtable_compare_arg *arg,
				const void *ptr)
{ … }

const struct rhashtable_params vxlan_vni_rht_params = …;

static void vxlan_vs_add_del_vninode(struct vxlan_dev *vxlan,
				     struct vxlan_vni_node *v,
				     bool del)
{ … }

void vxlan_vs_add_vnigrp(struct vxlan_dev *vxlan,
			 struct vxlan_sock *vs,
			 bool ipv6)
{ … }

void vxlan_vs_del_vnigrp(struct vxlan_dev *vxlan)
{ … }

static void vxlan_vnifilter_stats_get(const struct vxlan_vni_node *vninode,
				      struct vxlan_vni_stats *dest)
{ … }

static void vxlan_vnifilter_stats_add(struct vxlan_vni_node *vninode,
				      int type, unsigned int len)
{ … }

void vxlan_vnifilter_count(struct vxlan_dev *vxlan, __be32 vni,
			   struct vxlan_vni_node *vninode,
			   int type, unsigned int len)
{ … }

static u32 vnirange(struct vxlan_vni_node *vbegin,
		    struct vxlan_vni_node *vend)
{ … }

static size_t vxlan_vnifilter_entry_nlmsg_size(void)
{ … }

static int __vnifilter_entry_fill_stats(struct sk_buff *skb,
					const struct vxlan_vni_node *vbegin)
{ … }

static bool vxlan_fill_vni_filter_entry(struct sk_buff *skb,
					struct vxlan_vni_node *vbegin,
					struct vxlan_vni_node *vend,
					bool fill_stats)
{ … }

static void vxlan_vnifilter_notify(const struct vxlan_dev *vxlan,
				   struct vxlan_vni_node *vninode, int cmd)
{ … }

static int vxlan_vnifilter_dump_dev(const struct net_device *dev,
				    struct sk_buff *skb,
				    struct netlink_callback *cb)
{ … }

static int vxlan_vnifilter_dump(struct sk_buff *skb, struct netlink_callback *cb)
{ … }

static const struct nla_policy vni_filter_entry_policy[VXLAN_VNIFILTER_ENTRY_MAX + 1] = …;

static const struct nla_policy vni_filter_policy[VXLAN_VNIFILTER_MAX + 1] = …;

static int vxlan_update_default_fdb_entry(struct vxlan_dev *vxlan, __be32 vni,
					  union vxlan_addr *old_remote_ip,
					  union vxlan_addr *remote_ip,
					  struct netlink_ext_ack *extack)
{ … }

static int vxlan_vni_update_group(struct vxlan_dev *vxlan,
				  struct vxlan_vni_node *vninode,
				  union vxlan_addr *group,
				  bool create, bool *changed,
				  struct netlink_ext_ack *extack)
{ … }

int vxlan_vnilist_update_group(struct vxlan_dev *vxlan,
			       union vxlan_addr *old_remote_ip,
			       union vxlan_addr *new_remote_ip,
			       struct netlink_ext_ack *extack)
{ … }

static void vxlan_vni_delete_group(struct vxlan_dev *vxlan,
				   struct vxlan_vni_node *vninode)
{ … }

static int vxlan_vni_update(struct vxlan_dev *vxlan,
			    struct vxlan_vni_group *vg,
			    __be32 vni, union vxlan_addr *group,
			    bool *changed,
			    struct netlink_ext_ack *extack)
{ … }

static void __vxlan_vni_add_list(struct vxlan_vni_group *vg,
				 struct vxlan_vni_node *v)
{ … }

static void __vxlan_vni_del_list(struct vxlan_vni_group *vg,
				 struct vxlan_vni_node *v)
{ … }

static struct vxlan_vni_node *vxlan_vni_alloc(struct vxlan_dev *vxlan,
					      __be32 vni)
{ … }

static void vxlan_vni_free(struct vxlan_vni_node *vninode)
{ … }

static int vxlan_vni_add(struct vxlan_dev *vxlan,
			 struct vxlan_vni_group *vg,
			 u32 vni, union vxlan_addr *group,
			 struct netlink_ext_ack *extack)
{ … }

static void vxlan_vni_node_rcu_free(struct rcu_head *rcu)
{ … }

static int vxlan_vni_del(struct vxlan_dev *vxlan,
			 struct vxlan_vni_group *vg,
			 u32 vni, struct netlink_ext_ack *extack)
{ … }

static int vxlan_vni_add_del(struct vxlan_dev *vxlan, __u32 start_vni,
			     __u32 end_vni, union vxlan_addr *group,
			     int cmd, struct netlink_ext_ack *extack)
{ … }

static int vxlan_process_vni_filter(struct vxlan_dev *vxlan,
				    struct nlattr *nlvnifilter,
				    int cmd, struct netlink_ext_ack *extack)
{ … }

void vxlan_vnigroup_uninit(struct vxlan_dev *vxlan)
{ … }

int vxlan_vnigroup_init(struct vxlan_dev *vxlan)
{ … }

static int vxlan_vnifilter_process(struct sk_buff *skb, struct nlmsghdr *nlh,
				   struct netlink_ext_ack *extack)
{ … }

static const struct rtnl_msg_handler vxlan_vnifilter_rtnl_msg_handlers[] = …;

int vxlan_vnifilter_init(void)
{ … }

void vxlan_vnifilter_uninit(void)
{ … }