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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

mptcp.h (3871B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. #ifndef _MPTCP_H
  3. #define _MPTCP_H
  5. #include <netinet/in.h>		/* for sockaddr_in and sockaddr_in6	*/
  6. #include <sys/socket.h>		/* for struct sockaddr			*/
  8. #include <linux/const.h>
  9. #include <linux/types.h>
  10. #include <linux/in.h>		/* for sockaddr_in			*/
  11. #include <linux/in6.h>		/* for sockaddr_in6			*/
  12. #include <linux/socket.h>	/* for sockaddr_storage and sa_family	*/
  14. #define MPTCP_SUBFLOW_FLAG_MCAP_REM		_BITUL(0)
  15. #define MPTCP_SUBFLOW_FLAG_MCAP_LOC		_BITUL(1)
  16. #define MPTCP_SUBFLOW_FLAG_JOIN_REM		_BITUL(2)
  17. #define MPTCP_SUBFLOW_FLAG_JOIN_LOC		_BITUL(3)
  18. #define MPTCP_SUBFLOW_FLAG_BKUP_REM		_BITUL(4)
  19. #define MPTCP_SUBFLOW_FLAG_BKUP_LOC		_BITUL(5)
  20. #define MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED	_BITUL(6)
  21. #define MPTCP_SUBFLOW_FLAG_CONNECTED		_BITUL(7)
  22. #define MPTCP_SUBFLOW_FLAG_MAPVALID		_BITUL(8)
  24. #define MPTCP_PM_CMD_GRP_NAME	"mptcp_pm_cmds"
  25. #define MPTCP_PM_EV_GRP_NAME	"mptcp_pm_events"
  27. #include <linux/mptcp_pm.h>
  29. #define MPTCP_INFO_FLAG_FALLBACK		_BITUL(0)
  30. #define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED	_BITUL(1)
  32. #define MPTCP_PM_ADDR_FLAG_SIGNAL                      (1 << 0)
  33. #define MPTCP_PM_ADDR_FLAG_SUBFLOW                     (1 << 1)
  34. #define MPTCP_PM_ADDR_FLAG_BACKUP                      (1 << 2)
  35. #define MPTCP_PM_ADDR_FLAG_FULLMESH                    (1 << 3)
  36. #define MPTCP_PM_ADDR_FLAG_IMPLICIT                    (1 << 4)
  38. struct mptcp_info {
  39. 	__u8	mptcpi_subflows;
  40. 	__u8	mptcpi_add_addr_signal;
  41. 	__u8	mptcpi_add_addr_accepted;
  42. 	__u8	mptcpi_subflows_max;
  43. 	__u8	mptcpi_add_addr_signal_max;
  44. 	__u8	mptcpi_add_addr_accepted_max;
  45. 	__u32	mptcpi_flags;
  46. 	__u32	mptcpi_token;
  47. 	__u64	mptcpi_write_seq;
  48. 	__u64	mptcpi_snd_una;
  49. 	__u64	mptcpi_rcv_nxt;
  50. 	__u8	mptcpi_local_addr_used;
  51. 	__u8	mptcpi_local_addr_max;
  52. 	__u8	mptcpi_csum_enabled;
  53. 	__u32	mptcpi_retransmits;
  54. 	__u64	mptcpi_bytes_retrans;
  55. 	__u64	mptcpi_bytes_sent;
  56. 	__u64	mptcpi_bytes_received;
  57. 	__u64	mptcpi_bytes_acked;
  58. 	__u8	mptcpi_subflows_total;
  59. 	__u8	reserved[3];
  60. 	__u32	mptcpi_last_data_sent;
  61. 	__u32	mptcpi_last_data_recv;
  62. 	__u32	mptcpi_last_ack_recv;
  63. };
  65. /* MPTCP Reset reason codes, rfc8684 */
  66. #define MPTCP_RST_EUNSPEC	0
  67. #define MPTCP_RST_EMPTCP	1
  68. #define MPTCP_RST_ERESOURCE	2
  69. #define MPTCP_RST_EPROHIBIT	3
  70. #define MPTCP_RST_EWQ2BIG	4
  71. #define MPTCP_RST_EBADPERF	5
  72. #define MPTCP_RST_EMIDDLEBOX	6
  74. struct mptcp_subflow_data {
  75. 	__u32		size_subflow_data;		/* size of this structure in userspace */
  76. 	__u32		num_subflows;			/* must be 0, set by kernel */
  77. 	__u32		size_kernel;			/* must be 0, set by kernel */
  78. 	__u32		size_user;			/* size of one element in data[] */
  79. } __attribute__((aligned(8)));
  81. struct mptcp_subflow_addrs {
  82. 	union {
  83. 		__kernel_sa_family_t sa_family;
  84. 		struct sockaddr sa_local;
  85. 		struct sockaddr_in sin_local;
  86. 		struct sockaddr_in6 sin6_local;
  87. 		struct __kernel_sockaddr_storage ss_local;
  88. 	};
  89. 	union {
  90. 		struct sockaddr sa_remote;
  91. 		struct sockaddr_in sin_remote;
  92. 		struct sockaddr_in6 sin6_remote;
  93. 		struct __kernel_sockaddr_storage ss_remote;
  94. 	};
  95. };
  97. struct mptcp_subflow_info {
  98. 	__u32				id;
  99. 	struct mptcp_subflow_addrs	addrs;
  100. };
  102. struct mptcp_full_info {
  103. 	__u32		size_tcpinfo_kernel;	/* must be 0, set by kernel */
  104. 	__u32		size_tcpinfo_user;
  105. 	__u32		size_sfinfo_kernel;	/* must be 0, set by kernel */
  106. 	__u32		size_sfinfo_user;
  107. 	__u32		num_subflows;		/* must be 0, set by kernel (real subflow count) */
  108. 	__u32		size_arrays_user;	/* max subflows that userspace is interested in;
  109. 						 * the buffers at subflow_info/tcp_info
  110. 						 * are respectively at least:
  111. 						 *  size_arrays * size_sfinfo_user
  112. 						 *  size_arrays * size_tcpinfo_user
  113. 						 * bytes wide
  114. 						 */
  115. 	__aligned_u64		subflow_info;
  116. 	__aligned_u64		tcp_info;
  117. 	struct mptcp_info	mptcp_info;
  118. };
  120. /* MPTCP socket options */
  121. #define MPTCP_INFO		1
  122. #define MPTCP_TCPINFO		2
  123. #define MPTCP_SUBFLOW_ADDRS	3
  124. #define MPTCP_FULL_INFO		4
  126. #endif /* _MPTCP_H */