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