Eric Lee / smarc-fsl-linux-kernel

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include/linux/mroute6.h 2.39 KB
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d7d243b52   Eric Lee   SMARC-iMX8MQ Linu... 
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  /* SPDX-License-Identifier: GPL-2.0 */
  #ifndef __LINUX_MROUTE6_H
  #define __LINUX_MROUTE6_H
  
  
  #include <linux/pim.h>
  #include <linux/skbuff.h>	/* for struct sk_buff_head */
  #include <net/net_namespace.h>
  #include <uapi/linux/mroute6.h>
  #include <linux/mroute_base.h>
  #include <net/fib_rules.h>
  
  #ifdef CONFIG_IPV6_MROUTE
  static inline int ip6_mroute_opt(int opt)
  {
  	return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
  }
  #else
  static inline int ip6_mroute_opt(int opt)
  {
  	return 0;
  }
  #endif
  
  struct sock;
  
  #ifdef CONFIG_IPV6_MROUTE
  extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
  extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
  extern int ip6_mr_input(struct sk_buff *skb);
  extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
  extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
  extern int ip6_mr_init(void);
  extern void ip6_mr_cleanup(void);
  #else
  static inline
  int ip6_mroute_setsockopt(struct sock *sock,
  			  int optname, char __user *optval, unsigned int optlen)
  {
  	return -ENOPROTOOPT;
  }
  
  static inline
  int ip6_mroute_getsockopt(struct sock *sock,
  			  int optname, char __user *optval, int __user *optlen)
  {
  	return -ENOPROTOOPT;
  }
  
  static inline
  int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
  {
  	return -ENOIOCTLCMD;
  }
  
  static inline int ip6_mr_init(void)
  {
  	return 0;
  }
  
  static inline void ip6_mr_cleanup(void)
  {
  	return;
  }
  #endif
  
  #ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
  bool ip6mr_rule_default(const struct fib_rule *rule);
  #else
  static inline bool ip6mr_rule_default(const struct fib_rule *rule)
  {
  	return true;
  }
  #endif
  
  #define VIFF_STATIC 0x8000
  
  struct mfc6_cache_cmp_arg {
  	struct in6_addr mf6c_mcastgrp;
  	struct in6_addr mf6c_origin;
  };
  
  struct mfc6_cache {
  	struct mr_mfc _c;
  	union {
  		struct {
  			struct in6_addr mf6c_mcastgrp;
  			struct in6_addr mf6c_origin;
  		};
  		struct mfc6_cache_cmp_arg cmparg;
  	};
  };
  
  #define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
  
  struct rtmsg;
  extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
  			   struct rtmsg *rtm, u32 portid);
  
  #ifdef CONFIG_IPV6_MROUTE
  bool mroute6_is_socket(struct net *net, struct sk_buff *skb);
  extern int ip6mr_sk_done(struct sock *sk);
  #else
  static inline bool mroute6_is_socket(struct net *net, struct sk_buff *skb)
  {
  	return false;
  }
  static inline int ip6mr_sk_done(struct sock *sk)
  {
  	return 0;
  }
  #endif
  #endif