Differential D23850 Diff 90849 sys/netgraph/ng_message.h

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sys/netgraph/ng_message.h

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	#define NG_PATHSIZ 512 /* max path len (including null) */			#define NG_PATHSIZ 512 /* max path len (including null) */
	#define NG_CMDSTRSIZ 32 /* max command string (including null) */			#define NG_CMDSTRSIZ 32 /* max command string (including null) */

	#define NG_TEXTRESPONSE 1024 /* allow this length for a text response */			#define NG_TEXTRESPONSE 1024 /* allow this length for a text response */

	/* A netgraph message */			/* A netgraph message */
	struct ng_mesg {			struct ng_mesg {
	struct ng_msghdr {			struct ng_msghdr {
	u_char version; /* == NGM_VERSION */			u_char version; /* == NG_VERSION */
	u_char spare; /* pad to 4 bytes */			u_char spare; /* pad */
	u_int16_t spare2;			u_int16_t fragment; /* fragment counter */
	u_int32_t arglen; /* length of data */			u_int32_t arglen; /* length of data */
	u_int32_t cmd; /* command identifier */			u_int32_t cmd; /* command identifier */
	u_int32_t flags; /* message status */			u_int32_t flags; /* message status */
	u_int32_t token; /* match with reply */			u_int32_t token; /* match with reply */
	u_int32_t typecookie; /* node's type cookie */			u_int32_t typecookie; /* node's type cookie */
	u_char cmdstr[NG_CMDSTRSIZ]; /* cmd string + \0 */			u_char cmdstr[NG_CMDSTRSIZ]; /* cmd string + \0 */
	} header;			} header;
	char data[]; /* placeholder for actual data */			char data[]; /* placeholder for actual data */
	};			};

	/* This command is guaranteed to not alter data (or'd into the command). */			/* This command is guaranteed to not alter data (or'd into the command). */
	#define NGM_READONLY 0x10000000			#define NGM_READONLY 0x10000000
	/* This command is guaranteed to have a reply (or'd into the command). */			/* This command is guaranteed to have a reply (or'd into the command). */
	#define NGM_HASREPLY 0x20000000			#define NGM_HASREPLY 0x20000000

	/* Keep this in sync with the above structure definition */			/* Keep this in sync with the above structure definition */
	#define NG_GENERIC_NG_MESG_INFO(dtype) { \			#define NG_GENERIC_NG_MESG_INFO(dtype) { \
	{ "version", &ng_parse_uint8_type }, \			{ "version", &ng_parse_uint8_type }, \
	{ "spare", &ng_parse_uint8_type }, \			{ "spare", &ng_parse_uint8_type }, \
	{ "spare2", &ng_parse_uint16_type }, \			{ "fragment", &ng_parse_uint16_type }, \
	{ "arglen", &ng_parse_uint32_type }, \			{ "arglen", &ng_parse_uint32_type }, \
	{ "cmd", &ng_parse_uint32_type }, \			{ "cmd", &ng_parse_uint32_type }, \
	{ "flags", &ng_parse_hint32_type }, \			{ "flags", &ng_parse_hint32_type }, \
	{ "token", &ng_parse_uint32_type }, \			{ "token", &ng_parse_uint32_type }, \
	{ "typecookie", &ng_parse_uint32_type }, \			{ "typecookie", &ng_parse_uint32_type }, \
	{ "cmdstr", &ng_parse_cmdbuf_type }, \			{ "cmdstr", &ng_parse_cmdbuf_type }, \
	{ "data", (dtype) }, \			{ "data", (dtype) }, \
	{ NULL } \			{ NULL } \
	}			}

	/*			/*
	* Netgraph message header compatibility field			* Netgraph message header compatibility field
	* Interfaces within the kernel are defined by a different			* Interfaces within the kernel are defined by a different
	* value (see NG_ABI_VERSION in netgraph.h)			* value (see NG_ABI_VERSION in netgraph.h)
				*
				* Support both NG_VERSION and NG_VERSION2 as long as needed.
	*/			*/
	#define NG_VERSION 8			#define NG_VERSION 8
				#define NG_VERSION2 9

	/* Flags field flags */			/* Flags field flags */
	#define NGF_ORIG 0x00000000 /* the msg is the original request */
	#define NGF_RESP 0x00000001 /* the message is a response */			#define NGF_RESP 0x00000001 /* the message is a response */
				#define NGF_FRAG 0x00000002 /* more fragments (NG_VERSION2 only) */

	/* Type of a unique node ID. */			/* Type of a unique node ID. */
	#define ng_ID_t uint32_t			#define ng_ID_t uint32_t

	/*			/*
	* Here we describe the "generic" messages that all nodes inherently			* Here we describe the "generic" messages that all nodes inherently
	* understand. With the exception of NGM_TEXT_STATUS, these are handled			* understand. With the exception of NGM_TEXT_STATUS, these are handled
	* automatically by the base netgraph code.			* automatically by the base netgraph code.
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