Linux 4.6-rc6
[cris-mirror.git] / include / linux / mroute.h
blobbf9b322cb0b03abe8154b9180dabca6da1110f3c
1 #ifndef __LINUX_MROUTE_H
2 #define __LINUX_MROUTE_H
4 #include <linux/in.h>
5 #include <linux/pim.h>
6 #include <net/sock.h>
7 #include <uapi/linux/mroute.h>
9 #ifdef CONFIG_IP_MROUTE
10 static inline int ip_mroute_opt(int opt)
12 return opt >= MRT_BASE && opt <= MRT_MAX;
15 int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
16 int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
17 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
18 int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
19 int ip_mr_init(void);
20 #else
21 static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
22 char __user *optval, unsigned int optlen)
24 return -ENOPROTOOPT;
27 static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
28 char __user *optval, int __user *optlen)
30 return -ENOPROTOOPT;
33 static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
35 return -ENOIOCTLCMD;
38 static inline int ip_mr_init(void)
40 return 0;
43 static inline int ip_mroute_opt(int opt)
45 return 0;
47 #endif
49 struct vif_device {
50 struct net_device *dev; /* Device we are using */
51 unsigned long bytes_in,bytes_out;
52 unsigned long pkt_in,pkt_out; /* Statistics */
53 unsigned long rate_limit; /* Traffic shaping (NI) */
54 unsigned char threshold; /* TTL threshold */
55 unsigned short flags; /* Control flags */
56 __be32 local,remote; /* Addresses(remote for tunnels)*/
57 int link; /* Physical interface index */
60 #define VIFF_STATIC 0x8000
62 #define VIF_EXISTS(_mrt, _idx) ((_mrt)->vif_table[_idx].dev != NULL)
63 #define MFC_LINES 64
65 struct mr_table {
66 struct list_head list;
67 possible_net_t net;
68 u32 id;
69 struct sock __rcu *mroute_sk;
70 struct timer_list ipmr_expire_timer;
71 struct list_head mfc_unres_queue;
72 struct list_head mfc_cache_array[MFC_LINES];
73 struct vif_device vif_table[MAXVIFS];
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;
81 /* mfc_flags:
82 * MFC_STATIC - the entry was added statically (not by a routing daemon)
84 enum {
85 MFC_STATIC = BIT(0),
88 struct mfc_cache {
89 struct list_head list;
90 __be32 mfc_mcastgrp; /* Group the entry belongs to */
91 __be32 mfc_origin; /* Source of packet */
92 vifi_t mfc_parent; /* Source interface */
93 int mfc_flags; /* Flags on line */
95 union {
96 struct {
97 unsigned long expires;
98 struct sk_buff_head unresolved; /* Unresolved buffers */
99 } unres;
100 struct {
101 unsigned long last_assert;
102 int minvif;
103 int maxvif;
104 unsigned long bytes;
105 unsigned long pkt;
106 unsigned long wrong_if;
107 unsigned char ttls[MAXVIFS]; /* TTL thresholds */
108 } res;
109 } mfc_un;
110 struct rcu_head rcu;
113 #ifdef __BIG_ENDIAN
114 #define MFC_HASH(a,b) (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
115 #else
116 #define MFC_HASH(a,b) ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
117 #endif
119 struct rtmsg;
120 int ipmr_get_route(struct net *net, struct sk_buff *skb,
121 __be32 saddr, __be32 daddr,
122 struct rtmsg *rtm, int nowait);
123 #endif