Differential D47333 Diff 145757 sys/netlink/netlink.h

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sys/netlink/netlink.h

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	enum nlmsginfo_attrs {			enum nlmsginfo_attrs {
	NLMSGINFO_ATTR_UNUSED,			NLMSGINFO_ATTR_UNUSED,
	NLMSGINFO_ATTR_PROCESS_ID = 1, /* u32, source process PID */			NLMSGINFO_ATTR_PROCESS_ID = 1, /* u32, source process PID */
	NLMSGINFO_ATTR_PORT_ID = 2, /* u32, source socket nl_pid */			NLMSGINFO_ATTR_PORT_ID = 2, /* u32, source socket nl_pid */
	NLMSGINFO_ATTR_SEQ_ID = 3, /* u32, source message seq_id */			NLMSGINFO_ATTR_SEQ_ID = 3, /* u32, source message seq_id */
	};			};


	#ifndef roundup2
	#define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */
	#endif
	#define NL_ITEM_ALIGN_SIZE sizeof(uint32_t)			#define NL_ITEM_ALIGN_SIZE sizeof(uint32_t)
	#define NL_ITEM_ALIGN(_len) roundup2(_len, NL_ITEM_ALIGN_SIZE)			#define NL_ITEM_ALIGN(_len) __align_up(_len, NL_ITEM_ALIGN_SIZE)
	#define NL_ITEM_DATA(_ptr, _off) ((void )((char )(_ptr) + _off))			#define NL_ITEM_DATA(_ptr, _off) ((void )((char )(_ptr) + _off))
	#define NL_ITEM_DATA_CONST(_ptr, _off) ((const void )((const char )(_ptr) + _off))			#define NL_ITEM_DATA_CONST(_ptr, _off) ((const void )((const char )(_ptr) + _off))

	#define NL_ITEM_OK(_ptr, _len, _hlen, _LEN_M) \			#define NL_ITEM_OK(_ptr, _len, _hlen, _LEN_M) \
	((_len) >= _hlen && _LEN_M(_ptr) >= _hlen && _LEN_M(_ptr) <= (_len))			((_len) >= _hlen && _LEN_M(_ptr) >= _hlen && _LEN_M(_ptr) <= (_len))
	#define NL_ITEM_NEXT(_ptr, _LEN_M) ((__typeof(_ptr))((char *)(_ptr) + _LEN_M(_ptr)))			#define NL_ITEM_NEXT(_ptr, _LEN_M) ((__typeof(_ptr))((char *)(_ptr) + _LEN_M(_ptr)))
	#define NL_ITEM_ITER(_ptr, _len, _LEN_MACRO) \			#define NL_ITEM_ITER(_ptr, _len, _LEN_MACRO) \
	((_len) -= _LEN_MACRO(_ptr), NL_ITEM_NEXT(_ptr, _LEN_MACRO))			((_len) -= _LEN_MACRO(_ptr), NL_ITEM_NEXT(_ptr, _LEN_MACRO))


	#ifndef _KERNEL
	/* part of netlink(3) API */			/* part of netlink(3) API */
	#define NLMSG_ALIGNTO NL_ITEM_ALIGN_SIZE			#define NLMSG_ALIGNTO NL_ITEM_ALIGN_SIZE
	#define NLMSG_ALIGN(_len) NL_ITEM_ALIGN(_len)			#define NLMSG_ALIGN(_len) NL_ITEM_ALIGN(_len)
	#define NLMSG_HDRLEN ((int)sizeof(struct nlmsghdr))
				#ifndef _KERNEL
				/* part of netlink(3) API */
				#define NLMSG_HDRLEN (sizeof(struct nlmsghdr))
				jhbUnsubmitted Done Inline Actions sizeof() already returns a size_t, so you can just remove this cast instead jhb: sizeof() already returns a size_t, so you can just remove this cast instead
	#define NLMSG_LENGTH(_len) ((_len) + NLMSG_HDRLEN)			#define NLMSG_LENGTH(_len) ((_len) + NLMSG_HDRLEN)
	#define NLMSG_SPACE(_len) NLMSG_ALIGN(NLMSG_LENGTH(_len))			#define NLMSG_SPACE(_len) NLMSG_ALIGN(NLMSG_LENGTH(_len))
	#define NLMSG_DATA(_hdr) NL_ITEM_DATA(_hdr, NLMSG_HDRLEN)			#define NLMSG_DATA(_hdr) NL_ITEM_DATA(_hdr, NLMSG_HDRLEN)
	#define _NLMSG_LEN(_hdr) ((int)(_hdr)->nlmsg_len)			#define _NLMSG_LEN(_hdr) ((_hdr)->nlmsg_len)
	#define _NLMSG_ALIGNED_LEN(_hdr) NLMSG_ALIGN(_NLMSG_LEN(_hdr))			#define _NLMSG_ALIGNED_LEN(_hdr) NLMSG_ALIGN(_NLMSG_LEN(_hdr))
	#define NLMSG_OK(_hdr, _len) NL_ITEM_OK(_hdr, _len, NLMSG_HDRLEN, _NLMSG_LEN)			#define NLMSG_OK(_hdr, _len) NL_ITEM_OK(_hdr, _len, NLMSG_HDRLEN, _NLMSG_LEN)
	#define NLMSG_PAYLOAD(_hdr,_len) (_NLMSG_LEN(_hdr) - NLMSG_SPACE((_len)))			#define NLMSG_PAYLOAD(_hdr,_len) (_NLMSG_LEN(_hdr) - NLMSG_SPACE((_len)))
	#define NLMSG_NEXT(_hdr, _len) NL_ITEM_ITER(_hdr, _len, _NLMSG_ALIGNED_LEN)			#define NLMSG_NEXT(_hdr, _len) NL_ITEM_ITER(_hdr, _len, _NLMSG_ALIGNED_LEN)

	#else			#else
	#define NLMSG_ALIGNTO 4U			#define NLMSG_HDRLEN (NLMSG_ALIGN(sizeof(struct nlmsghdr)))
				jhbUnsubmitted Done Inline Actions I'm not sure you need this cast either jhb: I'm not sure you need this cast either
				jhbUnsubmitted Done Inline Actions You can use tabs to align the macro value now while you are here. jhb: You can use tabs to align the macro value now while you are here.
	#define NLMSG_ALIGN(len) (((len) + NLMSG_ALIGNTO - 1) & ~(NLMSG_ALIGNTO - 1))
	#define NLMSG_HDRLEN ((int)NLMSG_ALIGN(sizeof(struct nlmsghdr)))
	#endif			#endif

	/*			/*
	* Base netlink attribute TLV header.			* Base netlink attribute TLV header.
	*/			*/
	struct nlattr {			struct nlattr {
	uint16_t nla_len; /* Total attribute length */			uint16_t nla_len; /* Total attribute length */
	uint16_t nla_type; /* Attribute type */			uint16_t nla_type; /* Attribute type */
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