LXR linux/include/linux/mroute.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __LINUX_MROUTE_H
   3#define __LINUX_MROUTE_H
   4
   5#include <linux/in.h>
   6#include <linux/pim.h>
   7#include <net/fib_rules.h>
   8#include <net/fib_notifier.h>
   9#include <uapi/linux/mroute.h>
  10#include <linux/mroute_base.h>
  11#include <linux/sockptr.h>
  12
  13#ifdef CONFIG_IP_MROUTE
  14static inline int ip_mroute_opt(int opt)
  15{
  16        return opt >= MRT_BASE && opt <= MRT_MAX;
  17}
  18
  19int ip_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
  20int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
  21int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
  22int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
  23int ip_mr_init(void);
  24bool ipmr_rule_default(const struct fib_rule *rule);
  25#else
  26static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
  27                                       sockptr_t optval, unsigned int optlen)
  28{
  29        return -ENOPROTOOPT;
  30}
  31
  32static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
  33                                       char __user *optval, int __user *optlen)
  34{
  35        return -ENOPROTOOPT;
  36}
  37
  38static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
  39{
  40        return -ENOIOCTLCMD;
  41}
  42
  43static inline int ip_mr_init(void)
  44{
  45        return 0;
  46}
  47
  48static inline int ip_mroute_opt(int opt)
  49{
  50        return 0;
  51}
  52
  53static inline bool ipmr_rule_default(const struct fib_rule *rule)
  54{
  55        return true;
  56}
  57#endif
  58
  59#define VIFF_STATIC 0x8000
  60
  61struct mfc_cache_cmp_arg {
  62        __be32 mfc_mcastgrp;
  63        __be32 mfc_origin;
  64};
  65
  66/**
  67 * struct mfc_cache - multicast routing entries
  68 * @_c: Common multicast routing information; has to be first [for casting]
  69 * @mfc_mcastgrp: destination multicast group address
  70 * @mfc_origin: source address
  71 * @cmparg: used for rhashtable comparisons
  72 */
  73struct mfc_cache {
  74        struct mr_mfc _c;
  75        union {
  76                struct {
  77                        __be32 mfc_mcastgrp;
  78                        __be32 mfc_origin;
  79                };
  80                struct mfc_cache_cmp_arg cmparg;
  81        };
  82};
  83
  84struct rtmsg;
  85int ipmr_get_route(struct net *net, struct sk_buff *skb,
  86                   __be32 saddr, __be32 daddr,
  87                   struct rtmsg *rtm, u32 portid);
  88#endif
  89