mroute6.h 2.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __LINUX_MROUTE6_H
  3. #define __LINUX_MROUTE6_H
  4. #include <linux/pim.h>
  5. #include <linux/skbuff.h> /* for struct sk_buff_head */
  6. #include <net/net_namespace.h>
  7. #include <uapi/linux/mroute6.h>
  8. #include <linux/mroute_base.h>
  9. #include <linux/sockptr.h>
  10. #include <net/fib_rules.h>
  11. #ifdef CONFIG_IPV6_MROUTE
  12. static inline int ip6_mroute_opt(int opt)
  13. {
  14. return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
  15. }
  16. #else
  17. static inline int ip6_mroute_opt(int opt)
  18. {
  19. return 0;
  20. }
  21. #endif
  22. struct sock;
  23. #ifdef CONFIG_IPV6_MROUTE
  24. extern int ip6_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
  25. extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
  26. extern int ip6_mr_input(struct sk_buff *skb);
  27. extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
  28. extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
  29. extern int ip6_mr_init(void);
  30. extern void ip6_mr_cleanup(void);
  31. #else
  32. static inline int ip6_mroute_setsockopt(struct sock *sock, int optname,
  33. sockptr_t optval, unsigned int optlen)
  34. {
  35. return -ENOPROTOOPT;
  36. }
  37. static inline
  38. int ip6_mroute_getsockopt(struct sock *sock,
  39. int optname, char __user *optval, int __user *optlen)
  40. {
  41. return -ENOPROTOOPT;
  42. }
  43. static inline
  44. int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
  45. {
  46. return -ENOIOCTLCMD;
  47. }
  48. static inline int ip6_mr_init(void)
  49. {
  50. return 0;
  51. }
  52. static inline void ip6_mr_cleanup(void)
  53. {
  54. return;
  55. }
  56. #endif
  57. #ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
  58. bool ip6mr_rule_default(const struct fib_rule *rule);
  59. #else
  60. static inline bool ip6mr_rule_default(const struct fib_rule *rule)
  61. {
  62. return true;
  63. }
  64. #endif
  65. #define VIFF_STATIC 0x8000
  66. struct mfc6_cache_cmp_arg {
  67. struct in6_addr mf6c_mcastgrp;
  68. struct in6_addr mf6c_origin;
  69. };
  70. struct mfc6_cache {
  71. struct mr_mfc _c;
  72. union {
  73. struct {
  74. struct in6_addr mf6c_mcastgrp;
  75. struct in6_addr mf6c_origin;
  76. };
  77. struct mfc6_cache_cmp_arg cmparg;
  78. };
  79. };
  80. #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */
  81. struct rtmsg;
  82. extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
  83. struct rtmsg *rtm, u32 portid);
  84. #ifdef CONFIG_IPV6_MROUTE
  85. bool mroute6_is_socket(struct net *net, struct sk_buff *skb);
  86. extern int ip6mr_sk_done(struct sock *sk);
  87. #else
  88. static inline bool mroute6_is_socket(struct net *net, struct sk_buff *skb)
  89. {
  90. return false;
  91. }
  92. static inline int ip6mr_sk_done(struct sock *sk)
  93. {
  94. return 0;
  95. }
  96. #endif
  97. #endif