include/linux/usb/rndis_host.h

Source file repositories/reference/linux-study-clean/include/linux/usb/rndis_host.h

File Facts

System
Linux kernel
Corpus path
include/linux/usb/rndis_host.h
Extension
.h
Size
5450 bytes
Lines
199
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct rndis_msg_hdr {
	__le32	msg_type;			/* RNDIS_MSG_* */
	__le32	msg_len;
	/* followed by data that varies between messages */
	__le32	request_id;
	__le32	status;
	/* ... and more */
} __attribute__ ((packed));

/* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */
#define	CONTROL_BUFFER_SIZE		1025

/* RNDIS defines an (absurdly huge) 10 second control timeout,
 * but ActiveSync seems to use a more usual 5 second timeout
 * (which matches the USB 2.0 spec).
 */
#define	RNDIS_CONTROL_TIMEOUT_MS	(5 * 1000)

struct rndis_data_hdr {
	__le32	msg_type;		/* RNDIS_MSG_PACKET */
	__le32	msg_len;		/* rndis_data_hdr + data_len + pad */
	__le32	data_offset;		/* 36 -- right after header */
	__le32	data_len;		/* ... real packet size */

	__le32	oob_data_offset;	/* zero */
	__le32	oob_data_len;		/* zero */
	__le32	num_oob;		/* zero */
	__le32	packet_data_offset;	/* zero */

	__le32	packet_data_len;	/* zero */
	__le32	vc_handle;		/* zero */
	__le32	reserved;		/* zero */
} __attribute__ ((packed));

struct rndis_init {		/* OUT */
	/* header and: */
	__le32	msg_type;			/* RNDIS_MSG_INIT */
	__le32	msg_len;			/* 24 */
	__le32	request_id;
	__le32	major_version;			/* of rndis (1.0) */
	__le32	minor_version;
	__le32	max_transfer_size;
} __attribute__ ((packed));

struct rndis_init_c {		/* IN */
	/* header and: */
	__le32	msg_type;			/* RNDIS_MSG_INIT_C */
	__le32	msg_len;
	__le32	request_id;
	__le32	status;
	__le32	major_version;			/* of rndis (1.0) */
	__le32	minor_version;
	__le32	device_flags;
	__le32	medium;				/* zero == 802.3 */
	__le32	max_packets_per_message;
	__le32	max_transfer_size;
	__le32	packet_alignment;		/* max 7; (1<<n) bytes */
	__le32	af_list_offset;			/* zero */
	__le32	af_list_size;			/* zero */
} __attribute__ ((packed));

struct rndis_halt {		/* OUT (no reply) */
	/* header and: */
	__le32	msg_type;			/* RNDIS_MSG_HALT */
	__le32	msg_len;
	__le32	request_id;
} __attribute__ ((packed));

struct rndis_query {		/* OUT */
	/* header and: */
	__le32	msg_type;			/* RNDIS_MSG_QUERY */
	__le32	msg_len;
	__le32	request_id;
	__le32	oid;
	__le32	len;
	__le32	offset;
/*?*/	__le32	handle;				/* zero */
} __attribute__ ((packed));

struct rndis_query_c {		/* IN */
	/* header and: */
	__le32	msg_type;			/* RNDIS_MSG_QUERY_C */
	__le32	msg_len;
	__le32	request_id;
	__le32	status;
	__le32	len;
	__le32	offset;
} __attribute__ ((packed));

struct rndis_set {		/* OUT */

Annotation

Implementation Notes