1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_MROUTE_H
3 #define __LINUX_MROUTE_H
7 #include <linux/rhashtable.h>
9 #include <uapi/linux/mroute.h>
11 #ifdef CONFIG_IP_MROUTE
12 static inline int ip_mroute_opt(int opt)
14 return opt >= MRT_BASE && opt <= MRT_MAX;
17 int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
18 int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
19 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
20 int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
23 static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
24 char __user *optval, unsigned int optlen)
29 static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
30 char __user *optval, int __user *optlen)
35 static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
40 static inline int ip_mr_init(void)
45 static inline int ip_mroute_opt(int opt)
52 struct net_device *dev; /* Device we are using */
53 unsigned long bytes_in,bytes_out;
54 unsigned long pkt_in,pkt_out; /* Statistics */
55 unsigned long rate_limit; /* Traffic shaping (NI) */
56 unsigned char threshold; /* TTL threshold */
57 unsigned short flags; /* Control flags */
58 __be32 local,remote; /* Addresses(remote for tunnels)*/
59 int link; /* Physical interface index */
62 #define VIFF_STATIC 0x8000
64 #define VIF_EXISTS(_mrt, _idx) ((_mrt)->vif_table[_idx].dev != NULL)
67 struct list_head list;
70 struct sock __rcu *mroute_sk;
71 struct timer_list ipmr_expire_timer;
72 struct list_head mfc_unres_queue;
73 struct vif_device vif_table[MAXVIFS];
74 struct rhltable mfc_hash;
75 struct list_head mfc_cache_list;
77 atomic_t cache_resolve_queue_len;
78 bool mroute_do_assert;
80 int mroute_reg_vif_num;
84 * MFC_STATIC - the entry was added statically (not by a routing daemon)
90 struct mfc_cache_cmp_arg {
96 * struct mfc_cache - multicast routing entries
97 * @mnode: rhashtable list
98 * @mfc_mcastgrp: destination multicast group address
99 * @mfc_origin: source address
100 * @cmparg: used for rhashtable comparisons
101 * @mfc_parent: source interface (iif)
102 * @mfc_flags: entry flags
103 * @expires: unresolved entry expire time
104 * @unresolved: unresolved cached skbs
105 * @last_assert: time of last assert
106 * @minvif: minimum VIF id
107 * @maxvif: maximum VIF id
108 * @bytes: bytes that have passed for this entry
109 * @pkt: packets that have passed for this entry
110 * @wrong_if: number of wrong source interface hits
111 * @lastuse: time of last use of the group (traffic or update)
112 * @ttls: OIF TTL threshold array
113 * @list: global entry list
114 * @rcu: used for entry destruction
117 struct rhlist_head mnode;
123 struct mfc_cache_cmp_arg cmparg;
130 unsigned long expires;
131 struct sk_buff_head unresolved;
134 unsigned long last_assert;
139 unsigned long wrong_if;
140 unsigned long lastuse;
141 unsigned char ttls[MAXVIFS];
144 struct list_head list;
149 int ipmr_get_route(struct net *net, struct sk_buff *skb,
150 __be32 saddr, __be32 daddr,
151 struct rtmsg *rtm, u32 portid);