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oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

netfilter.h (1731B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef __LINUX_NETFILTER_H
  3. #define __LINUX_NETFILTER_H
  5. #include <linux/types.h>
  7. #include <linux/in.h>
  8. #include <linux/in6.h>
  10. /* Responses from hook functions. */
  11. #define NF_DROP 0
  12. #define NF_ACCEPT 1
  13. #define NF_STOLEN 2
  14. #define NF_QUEUE 3
  15. #define NF_REPEAT 4
  16. #define NF_STOP 5	/* Deprecated, for userspace nf_queue compatibility. */
  17. #define NF_MAX_VERDICT NF_STOP
  19. /* we overload the higher bits for encoding auxiliary data such as the queue
  20.  * number or errno values. Not nice, but better than additional function
  21.  * arguments. */
  22. #define NF_VERDICT_MASK 0x000000ff
  24. /* extra verdict flags have mask 0x0000ff00 */
  25. #define NF_VERDICT_FLAG_QUEUE_BYPASS	0x00008000
  27. /* queue number (NF_QUEUE) or errno (NF_DROP) */
  28. #define NF_VERDICT_QMASK 0xffff0000
  29. #define NF_VERDICT_QBITS 16
  31. #define NF_QUEUE_NR(x) ((((x) << 16) & NF_VERDICT_QMASK) | NF_QUEUE)
  33. #define NF_DROP_ERR(x) (((-x) << 16) | NF_DROP)
  35. /* only for userspace compatibility */
  37. /* NF_VERDICT_BITS should be 8 now, but userspace might break if this changes */
  38. #define NF_VERDICT_BITS 16
  40. enum nf_inet_hooks {
  41. 	NF_INET_PRE_ROUTING,
  42. 	NF_INET_LOCAL_IN,
  43. 	NF_INET_FORWARD,
  44. 	NF_INET_LOCAL_OUT,
  45. 	NF_INET_POST_ROUTING,
  46. 	NF_INET_NUMHOOKS,
  47. 	NF_INET_INGRESS = NF_INET_NUMHOOKS,
  48. };
  50. enum nf_dev_hooks {
  51. 	NF_NETDEV_INGRESS,
  52. 	NF_NETDEV_EGRESS,
  53. 	NF_NETDEV_NUMHOOKS
  54. };
  56. enum {
  57. 	NFPROTO_UNSPEC =  0,
  58. 	NFPROTO_INET   =  1,
  59. 	NFPROTO_IPV4   =  2,
  60. 	NFPROTO_ARP    =  3,
  61. 	NFPROTO_NETDEV =  5,
  62. 	NFPROTO_BRIDGE =  7,
  63. 	NFPROTO_IPV6   = 10,
  64. 	NFPROTO_DECNET = 12,
  65. 	NFPROTO_NUMPROTO,
  66. };
  68. union nf_inet_addr {
  69. 	__u32		all[4];
  70. 	__be32		ip;
  71. 	__be32		ip6[4];
  72. 	struct in_addr	in;
  73. 	struct in6_addr	in6;
  74. };
  76. #endif /* __LINUX_NETFILTER_H */