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linux/drivers/usb/gadget/rndis.h
Wu, Bryan 178398dca0 USB gadget rndis: fix struct rndis_packet_msg_type unaligned bug 
skb_push function may return a pointer which is not aligned as required
by struct rndis_packet_msg_type. Using attribute trick to fix this bug.

Signed-off-by: Roy Huang <roy.huang@analog.com>
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27 13:28:40 -07:00

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/*
* RNDIS Definitions for Remote NDIS
*
* Version: $Id: rndis.h,v 1.15 2004/03/25 21:33:46 robert Exp $
*
* Authors: Benedikt Spranger, Pengutronix
* Robert Schwebel, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2, as published by the Free Software Foundation.
*
* This software was originally developed in conformance with
* Microsoft's Remote NDIS Specification License Agreement.
*/
#ifndef _LINUX_RNDIS_H
#define _LINUX_RNDIS_H
#include "ndis.h"
#define RNDIS_MAXIMUM_FRAME_SIZE 1518
#define RNDIS_MAX_TOTAL_SIZE 1558
/* Remote NDIS Versions */
#define RNDIS_MAJOR_VERSION 1
#define RNDIS_MINOR_VERSION 0
/* Status Values */
#define RNDIS_STATUS_SUCCESS 0x00000000U /* Success */
#define RNDIS_STATUS_FAILURE 0xC0000001U /* Unspecified error */
#define RNDIS_STATUS_INVALID_DATA 0xC0010015U /* Invalid data */
#define RNDIS_STATUS_NOT_SUPPORTED 0xC00000BBU /* Unsupported request */
#define RNDIS_STATUS_MEDIA_CONNECT 0x4001000BU /* Device connected */
#define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000CU /* Device disconnected */
/* For all not specified status messages:
* RNDIS_STATUS_Xxx -> NDIS_STATUS_Xxx
*/
/* Message Set for Connectionless (802.3) Devices */
#define REMOTE_NDIS_PACKET_MSG 0x00000001U
#define REMOTE_NDIS_INITIALIZE_MSG 0x00000002U /* Initialize device */
#define REMOTE_NDIS_HALT_MSG 0x00000003U
#define REMOTE_NDIS_QUERY_MSG 0x00000004U
#define REMOTE_NDIS_SET_MSG 0x00000005U
#define REMOTE_NDIS_RESET_MSG 0x00000006U
#define REMOTE_NDIS_INDICATE_STATUS_MSG 0x00000007U
#define REMOTE_NDIS_KEEPALIVE_MSG 0x00000008U
/* Message completion */
#define REMOTE_NDIS_INITIALIZE_CMPLT 0x80000002U
#define REMOTE_NDIS_QUERY_CMPLT 0x80000004U
#define REMOTE_NDIS_SET_CMPLT 0x80000005U
#define REMOTE_NDIS_RESET_CMPLT 0x80000006U
#define REMOTE_NDIS_KEEPALIVE_CMPLT 0x80000008U
/* Device Flags */
#define RNDIS_DF_CONNECTIONLESS 0x00000001U
#define RNDIS_DF_CONNECTION_ORIENTED 0x00000002U
#define RNDIS_MEDIUM_802_3 0x00000000U
/* from drivers/net/sk98lin/h/skgepnmi.h */
#define OID_PNP_CAPABILITIES 0xFD010100
#define OID_PNP_SET_POWER 0xFD010101
#define OID_PNP_QUERY_POWER 0xFD010102
#define OID_PNP_ADD_WAKE_UP_PATTERN 0xFD010103
#define OID_PNP_REMOVE_WAKE_UP_PATTERN 0xFD010104
#define OID_PNP_ENABLE_WAKE_UP 0xFD010106
typedef struct rndis_init_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 MajorVersion;
__le32 MinorVersion;
__le32 MaxTransferSize;
} rndis_init_msg_type;
typedef struct rndis_init_cmplt_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 Status;
__le32 MajorVersion;
__le32 MinorVersion;
__le32 DeviceFlags;
__le32 Medium;
__le32 MaxPacketsPerTransfer;
__le32 MaxTransferSize;
__le32 PacketAlignmentFactor;
__le32 AFListOffset;
__le32 AFListSize;
} rndis_init_cmplt_type;
typedef struct rndis_halt_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
} rndis_halt_msg_type;
typedef struct rndis_query_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 OID;
__le32 InformationBufferLength;
__le32 InformationBufferOffset;
__le32 DeviceVcHandle;
} rndis_query_msg_type;
typedef struct rndis_query_cmplt_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 Status;
__le32 InformationBufferLength;
__le32 InformationBufferOffset;
} rndis_query_cmplt_type;
typedef struct rndis_set_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 OID;
__le32 InformationBufferLength;
__le32 InformationBufferOffset;
__le32 DeviceVcHandle;
} rndis_set_msg_type;
typedef struct rndis_set_cmplt_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 Status;
} rndis_set_cmplt_type;
typedef struct rndis_reset_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 Reserved;
} rndis_reset_msg_type;
typedef struct rndis_reset_cmplt_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 Status;
__le32 AddressingReset;
} rndis_reset_cmplt_type;
typedef struct rndis_indicate_status_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 Status;
__le32 StatusBufferLength;
__le32 StatusBufferOffset;
} rndis_indicate_status_msg_type;
typedef struct rndis_keepalive_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
} rndis_keepalive_msg_type;
typedef struct rndis_keepalive_cmplt_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 RequestID;
__le32 Status;
} rndis_keepalive_cmplt_type;
struct rndis_packet_msg_type
{
__le32 MessageType;
__le32 MessageLength;
__le32 DataOffset;
__le32 DataLength;
__le32 OOBDataOffset;
__le32 OOBDataLength;
__le32 NumOOBDataElements;
__le32 PerPacketInfoOffset;
__le32 PerPacketInfoLength;
__le32 VcHandle;
__le32 Reserved;
} __attribute__ ((packed));
struct rndis_config_parameter
{
__le32 ParameterNameOffset;
__le32 ParameterNameLength;
__le32 ParameterType;
__le32 ParameterValueOffset;
__le32 ParameterValueLength;
};
/* implementation specific */
enum rndis_state
{
RNDIS_UNINITIALIZED,
RNDIS_INITIALIZED,
RNDIS_DATA_INITIALIZED,
};
typedef struct rndis_resp_t
{
struct list_head list;
u8 *buf;
u32 length;
int send;
} rndis_resp_t;
typedef struct rndis_params
{
u8 confignr;
u8 used;
u16 saved_filter;
enum rndis_state state;
u32 medium;
u32 speed;
u32 media_state;
const u8 *host_mac;
u16 *filter;
struct net_device *dev;
struct net_device_stats *stats;
u32 vendorID;
const char *vendorDescr;
int (*ack) (struct net_device *);
struct list_head resp_queue;
} rndis_params;
/* RNDIS Message parser and other useless functions */
int rndis_msg_parser (u8 configNr, u8 *buf);
int rndis_register (int (*rndis_control_ack) (struct net_device *));
void rndis_deregister (int configNr);
int rndis_set_param_dev (u8 configNr, struct net_device *dev,
struct net_device_stats *stats,
u16 *cdc_filter);
int rndis_set_param_vendor (u8 configNr, u32 vendorID,
const char *vendorDescr);
int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed);
void rndis_add_hdr (struct sk_buff *skb);
int rndis_rm_hdr (struct sk_buff *skb);
u8 *rndis_get_next_response (int configNr, u32 *length);
void rndis_free_response (int configNr, u8 *buf);
void rndis_uninit (int configNr);
int rndis_signal_connect (int configNr);
int rndis_signal_disconnect (int configNr);
int rndis_state (int configNr);
extern void rndis_set_host_mac (int configNr, const u8 *addr);
int __devinit rndis_init (void);
void rndis_exit (void);
#endif /* _LINUX_RNDIS_H */
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