0bbbf0e7d0
Now that both ipmr and ip6mr are using the same mr_table structure, we can have a common function to allocate & initialize a new instance. Signed-off-by: Yuval Mintz <yuvalm@mellanox.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
#ifndef __LINUX_MROUTE_BASE_H
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#define __LINUX_MROUTE_BASE_H
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#include <linux/netdevice.h>
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#include <linux/rhashtable.h>
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#include <net/net_namespace.h>
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#include <net/sock.h>
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/**
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* struct vif_device - interface representor for multicast routing
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* @dev: network device being used
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* @bytes_in: statistic; bytes ingressing
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* @bytes_out: statistic; bytes egresing
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* @pkt_in: statistic; packets ingressing
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* @pkt_out: statistic; packets egressing
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* @rate_limit: Traffic shaping (NI)
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* @threshold: TTL threshold
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* @flags: Control flags
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* @link: Physical interface index
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* @dev_parent_id: device parent id
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* @local: Local address
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* @remote: Remote address for tunnels
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*/
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struct vif_device {
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struct net_device *dev;
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unsigned long bytes_in, bytes_out;
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unsigned long pkt_in, pkt_out;
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unsigned long rate_limit;
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unsigned char threshold;
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unsigned short flags;
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int link;
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/* Currently only used by ipmr */
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struct netdev_phys_item_id dev_parent_id;
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__be32 local, remote;
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};
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#ifndef MAXVIFS
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/* This one is nasty; value is defined in uapi using different symbols for
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* mroute and morute6 but both map into same 32.
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*/
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#define MAXVIFS 32
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#endif
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#define VIF_EXISTS(_mrt, _idx) (!!((_mrt)->vif_table[_idx].dev))
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/**
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* struct mr_table - a multicast routing table
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* @list: entry within a list of multicast routing tables
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* @net: net where this table belongs
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* @id: identifier of the table
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* @mroute_sk: socket associated with the table
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* @ipmr_expire_timer: timer for handling unresolved routes
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* @mfc_unres_queue: list of unresolved MFC entries
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* @vif_table: array containing all possible vifs
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* @mfc_hash: Hash table of all resolved routes for easy lookup
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* @mfc_cache_list: list of resovled routes for possible traversal
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* @maxvif: Identifier of highest value vif currently in use
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* @cache_resolve_queue_len: current size of unresolved queue
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* @mroute_do_assert: Whether to inform userspace on wrong ingress
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* @mroute_do_pim: Whether to receive IGMP PIMv1
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* @mroute_reg_vif_num: PIM-device vif index
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*/
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struct mr_table {
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struct list_head list;
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possible_net_t net;
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u32 id;
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struct sock __rcu *mroute_sk;
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struct timer_list ipmr_expire_timer;
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struct list_head mfc_unres_queue;
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struct vif_device vif_table[MAXVIFS];
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struct rhltable mfc_hash;
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struct list_head mfc_cache_list;
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int maxvif;
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atomic_t cache_resolve_queue_len;
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bool mroute_do_assert;
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bool mroute_do_pim;
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int mroute_reg_vif_num;
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};
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#ifdef CONFIG_IP_MROUTE_COMMON
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void vif_device_init(struct vif_device *v,
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struct net_device *dev,
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unsigned long rate_limit,
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unsigned char threshold,
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unsigned short flags,
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unsigned short get_iflink_mask);
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struct mr_table *
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mr_table_alloc(struct net *net, u32 id,
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const struct rhashtable_params *rht_params,
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void (*expire_func)(struct timer_list *t),
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void (*table_set)(struct mr_table *mrt,
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struct net *net));
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#else
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static inline void vif_device_init(struct vif_device *v,
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struct net_device *dev,
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unsigned long rate_limit,
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unsigned char threshold,
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unsigned short flags,
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unsigned short get_iflink_mask)
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{
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}
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static inline struct mr_table *
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mr_table_alloc(struct net *net, u32 id,
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const struct rhashtable_params *rht_params,
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void (*expire_func)(struct timer_list *t),
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void (*table_set)(struct mr_table *mrt,
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struct net *net))
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{
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return NULL;
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}
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#endif
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#endif
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