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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

mctp.h (2538B)

    

  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3.  * Management Component Transport Protocol (MCTP)
  4.  *
  5.  * Copyright (c) 2021 Code Construct
  6.  * Copyright (c) 2021 Google
  7.  */
  9. #ifndef __UAPI_MCTP_H
  10. #define __UAPI_MCTP_H
  12. #include <linux/types.h>
  13. #include <linux/socket.h>
  14. #include <linux/netdevice.h>
  16. typedef __u8			mctp_eid_t;
  18. struct mctp_addr {
  19. 	mctp_eid_t		s_addr;
  20. };
  22. struct sockaddr_mctp {
  23. 	__kernel_sa_family_t	smctp_family;
  24. 	__u16			__smctp_pad0;
  25. 	unsigned int		smctp_network;
  26. 	struct mctp_addr	smctp_addr;
  27. 	__u8			smctp_type;
  28. 	__u8			smctp_tag;
  29. 	__u8			__smctp_pad1;
  30. };
  32. struct sockaddr_mctp_ext {
  33. 	struct sockaddr_mctp	smctp_base;
  34. 	int			smctp_ifindex;
  35. 	__u8			smctp_halen;
  36. 	__u8			__smctp_pad0[3];
  37. 	__u8			smctp_haddr[MAX_ADDR_LEN];
  38. };
  40. #define MCTP_NET_ANY		0x0
  42. #define MCTP_ADDR_NULL		0x00
  43. #define MCTP_ADDR_ANY		0xff
  45. #define MCTP_TAG_MASK		0x07
  46. #define MCTP_TAG_OWNER		0x08
  47. #define MCTP_TAG_PREALLOC	0x10
  49. #define MCTP_OPT_ADDR_EXT	1
  51. #define SIOCMCTPALLOCTAG	(SIOCPROTOPRIVATE + 0)
  52. #define SIOCMCTPDROPTAG		(SIOCPROTOPRIVATE + 1)
  53. #define SIOCMCTPALLOCTAG2	(SIOCPROTOPRIVATE + 2)
  54. #define SIOCMCTPDROPTAG2	(SIOCPROTOPRIVATE + 3)
  56. /* Deprecated: use mctp_ioc_tag_ctl2 / TAG2 ioctls instead, which defines the
  57.  * MCTP network ID as part of the allocated tag. Using this assumes the default
  58.  * net ID for allocated tags, which may not give correct behaviour on system
  59.  * with multiple networks configured.
  60.  */
  61. struct mctp_ioc_tag_ctl {
  62. 	mctp_eid_t	peer_addr;
  64. 	/* For SIOCMCTPALLOCTAG: must be passed as zero, kernel will
  65. 	 * populate with the allocated tag value. Returned tag value will
  66. 	 * always have TO and PREALLOC set.
  67. 	 *
  68. 	 * For SIOCMCTPDROPTAG: userspace provides tag value to drop, from
  69. 	 * a prior SIOCMCTPALLOCTAG call (and so must have TO and PREALLOC set).
  70. 	 */
  71. 	__u8		tag;
  72. 	__u16		flags;
  73. };
  75. struct mctp_ioc_tag_ctl2 {
  76. 	/* Peer details: network ID, peer EID, local EID. All set by the
  77. 	 * caller.
  78. 	 *
  79. 	 * Local EID must be MCTP_ADDR_NULL or MCTP_ADDR_ANY in current
  80. 	 * kernels.
  81. 	 */
  82. 	unsigned int	net;
  83. 	mctp_eid_t	peer_addr;
  84. 	mctp_eid_t	local_addr;
  86. 	/* Set by caller, but no flags defined currently. Must be 0 */
  87. 	__u16		flags;
  89. 	/* For SIOCMCTPALLOCTAG2: must be passed as zero, kernel will
  90. 	 * populate with the allocated tag value. Returned tag value will
  91. 	 * always have TO and PREALLOC set.
  92. 	 *
  93. 	 * For SIOCMCTPDROPTAG2: userspace provides tag value to drop, from
  94. 	 * a prior SIOCMCTPALLOCTAG2 call (and so must have TO and PREALLOC set).
  95. 	 */
  96. 	__u8		tag;
  98. };
  100. #endif /* __UAPI_MCTP_H */