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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

ioam6.h (2383B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3.  *  IPv6 IOAM implementation
  4.  *
  5.  *  Author:
  6.  *  Justin Iurman <justin.iurman@uliege.be>
  7.  */
  9. #ifndef _LINUX_IOAM6_H
  10. #define _LINUX_IOAM6_H
  12. #include <asm/byteorder.h>
  13. #include <linux/types.h>
  15. #define IOAM6_U16_UNAVAILABLE U16_MAX
  16. #define IOAM6_U32_UNAVAILABLE U32_MAX
  17. #define IOAM6_U64_UNAVAILABLE U64_MAX
  19. #define IOAM6_DEFAULT_ID (IOAM6_U32_UNAVAILABLE >> 8)
  20. #define IOAM6_DEFAULT_ID_WIDE (IOAM6_U64_UNAVAILABLE >> 8)
  21. #define IOAM6_DEFAULT_IF_ID IOAM6_U16_UNAVAILABLE
  22. #define IOAM6_DEFAULT_IF_ID_WIDE IOAM6_U32_UNAVAILABLE
  24. /*
  25.  * IPv6 IOAM Option Header
  26.  */
  27. struct ioam6_hdr {
  28. 	__u8 opt_type;
  29. 	__u8 opt_len;
  30. 	__u8 :8;				/* reserved */
  31. #define IOAM6_TYPE_PREALLOC 0
  32. 	__u8 type;
  33. } __attribute__((packed));
  35. /*
  36.  * IOAM Trace Header
  37.  */
  38. struct ioam6_trace_hdr {
  39. 	__be16	namespace_id;
  41. #if defined(__LITTLE_ENDIAN_BITFIELD)
  43. 	__u8	:1,				/* unused */
  44. 		:1,				/* unused */
  45. 		overflow:1,
  46. 		nodelen:5;
  48. 	__u8	remlen:7,
  49. 		:1;				/* unused */
  51. 	union {
  52. 		__be32 type_be32;
  54. 		struct {
  55. 			__u32	bit7:1,
  56. 				bit6:1,
  57. 				bit5:1,
  58. 				bit4:1,
  59. 				bit3:1,
  60. 				bit2:1,
  61. 				bit1:1,
  62. 				bit0:1,
  63. 				bit15:1,	/* unused */
  64. 				bit14:1,	/* unused */
  65. 				bit13:1,	/* unused */
  66. 				bit12:1,	/* unused */
  67. 				bit11:1,
  68. 				bit10:1,
  69. 				bit9:1,
  70. 				bit8:1,
  71. 				bit23:1,	/* reserved */
  72. 				bit22:1,
  73. 				bit21:1,	/* unused */
  74. 				bit20:1,	/* unused */
  75. 				bit19:1,	/* unused */
  76. 				bit18:1,	/* unused */
  77. 				bit17:1,	/* unused */
  78. 				bit16:1,	/* unused */
  79. 				:8;		/* reserved */
  80. 		} type;
  81. 	};
  83. #elif defined(__BIG_ENDIAN_BITFIELD)
  85. 	__u8	nodelen:5,
  86. 		overflow:1,
  87. 		:1,				/* unused */
  88. 		:1;				/* unused */
  90. 	__u8	:1,				/* unused */
  91. 		remlen:7;
  93. 	union {
  94. 		__be32 type_be32;
  96. 		struct {
  97. 			__u32	bit0:1,
  98. 				bit1:1,
  99. 				bit2:1,
  100. 				bit3:1,
  101. 				bit4:1,
  102. 				bit5:1,
  103. 				bit6:1,
  104. 				bit7:1,
  105. 				bit8:1,
  106. 				bit9:1,
  107. 				bit10:1,
  108. 				bit11:1,
  109. 				bit12:1,	/* unused */
  110. 				bit13:1,	/* unused */
  111. 				bit14:1,	/* unused */
  112. 				bit15:1,	/* unused */
  113. 				bit16:1,	/* unused */
  114. 				bit17:1,	/* unused */
  115. 				bit18:1,	/* unused */
  116. 				bit19:1,	/* unused */
  117. 				bit20:1,	/* unused */
  118. 				bit21:1,	/* unused */
  119. 				bit22:1,
  120. 				bit23:1,	/* reserved */
  121. 				:8;		/* reserved */
  122. 		} type;
  123. 	};
  125. #else
  126. #error "Please fix <asm/byteorder.h>"
  127. #endif
  129. #define IOAM6_TRACE_DATA_SIZE_MAX 244
  130. 	__u8	data[];
  131. } __attribute__((packed));
  133. #endif /* _LINUX_IOAM6_H */