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// SPDX-License-Identifier: GPL-2.0
/*
* RNDIS Definitions for Remote NDIS
*
* Authors: Benedikt Spranger, Pengutronix
* Robert Schwebel, Pengutronix
*
* This software was originally developed in conformance with
* Microsoft's Remote NDIS Specification License Agreement.
*/
#ifndef _LINUX_RNDIS_H
#define _LINUX_RNDIS_H
#include <linux/rndis.h>
#include "u_ether.h"
#include "ndis.h"
#define RNDIS_MAXIMUM_FRAME_SIZE 1518
#define RNDIS_MAX_TOTAL_SIZE 1558
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 {
int 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;
u32 vendorID;
const char *vendorDescr;
void (*resp_avail)(void *v);
void *v;
struct list_head resp_queue;
spinlock_t resp_lock;
} rndis_params;
/* RNDIS Message parser and other useless functions */
int rndis_msg_parser(struct rndis_params *params, u8 *buf);
struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v);
void rndis_deregister(struct rndis_params *params);
int rndis_set_param_dev(struct rndis_params *params, struct net_device *dev,
u16 *cdc_filter);
int rndis_set_param_vendor(struct rndis_params *params, u32 vendorID,
const char *vendorDescr);
int rndis_set_param_medium(struct rndis_params *params, u32 medium,
u32 speed);
void rndis_add_hdr(struct sk_buff *skb);
int rndis_rm_hdr(struct gether *port, struct sk_buff *skb,
struct sk_buff_head *list);
u8 *rndis_get_next_response(struct rndis_params *params, u32 *length);
void rndis_free_response(struct rndis_params *params, u8 *buf);
void rndis_uninit(struct rndis_params *params);
int rndis_signal_connect(struct rndis_params *params);
int rndis_signal_disconnect(struct rndis_params *params);
int rndis_state(struct rndis_params *params);
extern void rndis_set_host_mac(struct rndis_params *params, const u8 *addr);
#endif /* _LINUX_RNDIS_H */
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