125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
#ifndef __LINUX_MROUTE_H
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#define __LINUX_MROUTE_H
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#include <linux/in.h>
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#include <linux/pim.h>
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#include <net/sock.h>
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#include <uapi/linux/mroute.h>
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#ifdef CONFIG_IP_MROUTE
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static inline int ip_mroute_opt(int opt)
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{
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return opt >= MRT_BASE && opt <= MRT_MAX;
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}
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int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
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int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
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int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
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int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
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int ip_mr_init(void);
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#else
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static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
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char __user *optval, unsigned int optlen)
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{
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return -ENOPROTOOPT;
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}
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static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
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char __user *optval, int __user *optlen)
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{
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return -ENOPROTOOPT;
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}
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static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
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{
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return -ENOIOCTLCMD;
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}
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static inline int ip_mr_init(void)
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{
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return 0;
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}
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static inline int ip_mroute_opt(int opt)
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{
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return 0;
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}
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#endif
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struct vif_device {
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struct net_device *dev; /* Device we are using */
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unsigned long bytes_in,bytes_out;
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unsigned long pkt_in,pkt_out; /* Statistics */
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unsigned long rate_limit; /* Traffic shaping (NI) */
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unsigned char threshold; /* TTL threshold */
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unsigned short flags; /* Control flags */
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__be32 local,remote; /* Addresses(remote for tunnels)*/
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int link; /* Physical interface index */
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};
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#define VIFF_STATIC 0x8000
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#define VIF_EXISTS(_mrt, _idx) ((_mrt)->vif_table[_idx].dev != NULL)
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#define MFC_LINES 64
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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 list_head mfc_cache_array[MFC_LINES];
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struct vif_device vif_table[MAXVIFS];
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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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/* mfc_flags:
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* MFC_STATIC - the entry was added statically (not by a routing daemon)
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*/
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enum {
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MFC_STATIC = BIT(0),
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};
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struct mfc_cache {
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struct list_head list;
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__be32 mfc_mcastgrp; /* Group the entry belongs to */
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__be32 mfc_origin; /* Source of packet */
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vifi_t mfc_parent; /* Source interface */
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int mfc_flags; /* Flags on line */
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union {
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struct {
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unsigned long expires;
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struct sk_buff_head unresolved; /* Unresolved buffers */
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} unres;
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struct {
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unsigned long last_assert;
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int minvif;
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int maxvif;
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unsigned long bytes;
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unsigned long pkt;
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unsigned long wrong_if;
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unsigned long lastuse;
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unsigned char ttls[MAXVIFS]; /* TTL thresholds */
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} res;
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} mfc_un;
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struct rcu_head rcu;
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};
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#ifdef __BIG_ENDIAN
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#define MFC_HASH(a,b) (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1))
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#else
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#define MFC_HASH(a,b) ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1))
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#endif
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struct rtmsg;
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int ipmr_get_route(struct net *net, struct sk_buff *skb,
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__be32 saddr, __be32 daddr,
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struct rtmsg *rtm, int nowait, u32 portid);
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#endif
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