| Yuval Mintz | 6853f21 | 2018-02-28 23:29:29 +0200 | [diff] [blame] | 1 | #ifndef __LINUX_MROUTE_BASE_H |
| 2 | #define __LINUX_MROUTE_BASE_H |
| 3 | |
| 4 | #include <linux/netdevice.h> |
| Yuval Mintz | b70432f | 2018-02-28 23:29:32 +0200 | [diff] [blame] | 5 | #include <linux/rhashtable.h> |
| 6 | #include <net/net_namespace.h> |
| 7 | #include <net/sock.h> |
| Yuval Mintz | 6853f21 | 2018-02-28 23:29:29 +0200 | [diff] [blame] | 8 | |
| 9 | /** |
| 10 | * struct vif_device - interface representor for multicast routing |
| 11 | * @dev: network device being used |
| 12 | * @bytes_in: statistic; bytes ingressing |
| 13 | * @bytes_out: statistic; bytes egresing |
| 14 | * @pkt_in: statistic; packets ingressing |
| 15 | * @pkt_out: statistic; packets egressing |
| 16 | * @rate_limit: Traffic shaping (NI) |
| 17 | * @threshold: TTL threshold |
| 18 | * @flags: Control flags |
| 19 | * @link: Physical interface index |
| 20 | * @dev_parent_id: device parent id |
| 21 | * @local: Local address |
| 22 | * @remote: Remote address for tunnels |
| 23 | */ |
| 24 | struct vif_device { |
| 25 | struct net_device *dev; |
| 26 | unsigned long bytes_in, bytes_out; |
| 27 | unsigned long pkt_in, pkt_out; |
| 28 | unsigned long rate_limit; |
| 29 | unsigned char threshold; |
| 30 | unsigned short flags; |
| 31 | int link; |
| 32 | |
| 33 | /* Currently only used by ipmr */ |
| 34 | struct netdev_phys_item_id dev_parent_id; |
| 35 | __be32 local, remote; |
| 36 | }; |
| 37 | |
| Yuval Mintz | b70432f | 2018-02-28 23:29:32 +0200 | [diff] [blame] | 38 | #ifndef MAXVIFS |
| 39 | /* This one is nasty; value is defined in uapi using different symbols for |
| 40 | * mroute and morute6 but both map into same 32. |
| 41 | */ |
| 42 | #define MAXVIFS 32 |
| 43 | #endif |
| 44 | |
| 45 | #define VIF_EXISTS(_mrt, _idx) (!!((_mrt)->vif_table[_idx].dev)) |
| 46 | |
| 47 | /** |
| 48 | * struct mr_table - a multicast routing table |
| 49 | * @list: entry within a list of multicast routing tables |
| 50 | * @net: net where this table belongs |
| 51 | * @id: identifier of the table |
| 52 | * @mroute_sk: socket associated with the table |
| 53 | * @ipmr_expire_timer: timer for handling unresolved routes |
| 54 | * @mfc_unres_queue: list of unresolved MFC entries |
| 55 | * @vif_table: array containing all possible vifs |
| 56 | * @mfc_hash: Hash table of all resolved routes for easy lookup |
| 57 | * @mfc_cache_list: list of resovled routes for possible traversal |
| 58 | * @maxvif: Identifier of highest value vif currently in use |
| 59 | * @cache_resolve_queue_len: current size of unresolved queue |
| 60 | * @mroute_do_assert: Whether to inform userspace on wrong ingress |
| 61 | * @mroute_do_pim: Whether to receive IGMP PIMv1 |
| 62 | * @mroute_reg_vif_num: PIM-device vif index |
| 63 | */ |
| 64 | struct mr_table { |
| 65 | struct list_head list; |
| 66 | possible_net_t net; |
| 67 | u32 id; |
| 68 | struct sock __rcu *mroute_sk; |
| 69 | struct timer_list ipmr_expire_timer; |
| 70 | struct list_head mfc_unres_queue; |
| 71 | struct vif_device vif_table[MAXVIFS]; |
| 72 | struct rhltable mfc_hash; |
| 73 | struct list_head mfc_cache_list; |
| 74 | int maxvif; |
| 75 | atomic_t cache_resolve_queue_len; |
| 76 | bool mroute_do_assert; |
| 77 | bool mroute_do_pim; |
| 78 | int mroute_reg_vif_num; |
| 79 | }; |
| 80 | |
| Yuval Mintz | 6853f21 | 2018-02-28 23:29:29 +0200 | [diff] [blame] | 81 | #ifdef CONFIG_IP_MROUTE_COMMON |
| 82 | void vif_device_init(struct vif_device *v, |
| 83 | struct net_device *dev, |
| 84 | unsigned long rate_limit, |
| 85 | unsigned char threshold, |
| 86 | unsigned short flags, |
| 87 | unsigned short get_iflink_mask); |
| Yuval Mintz | 0bbbf0e | 2018-02-28 23:29:33 +0200 | [diff] [blame^] | 88 | |
| 89 | struct mr_table * |
| 90 | mr_table_alloc(struct net *net, u32 id, |
| 91 | const struct rhashtable_params *rht_params, |
| 92 | void (*expire_func)(struct timer_list *t), |
| 93 | void (*table_set)(struct mr_table *mrt, |
| 94 | struct net *net)); |
| Yuval Mintz | 6853f21 | 2018-02-28 23:29:29 +0200 | [diff] [blame] | 95 | #else |
| 96 | static inline void vif_device_init(struct vif_device *v, |
| 97 | struct net_device *dev, |
| 98 | unsigned long rate_limit, |
| 99 | unsigned char threshold, |
| 100 | unsigned short flags, |
| 101 | unsigned short get_iflink_mask) |
| 102 | { |
| 103 | } |
| Yuval Mintz | 0bbbf0e | 2018-02-28 23:29:33 +0200 | [diff] [blame^] | 104 | |
| 105 | static inline struct mr_table * |
| 106 | mr_table_alloc(struct net *net, u32 id, |
| 107 | const struct rhashtable_params *rht_params, |
| 108 | void (*expire_func)(struct timer_list *t), |
| 109 | void (*table_set)(struct mr_table *mrt, |
| 110 | struct net *net)) |
| 111 | { |
| 112 | return NULL; |
| 113 | } |
| Yuval Mintz | 6853f21 | 2018-02-28 23:29:29 +0200 | [diff] [blame] | 114 | #endif |
| 115 | #endif |