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kernel_google_wahoo/include/uapi/linux/rmnet_data.h
Subash Abhinov Kasiviswanathan b268a55a9f net: rmnet_data: Add support to configure custom device name 
rmnet_data assigns device name by the order they are created.
This causes problems which multiple processes are trying to
create devices and leads to random device names.

Assign device name as specified by user.

CRs-Fixed: 2018785
Change-Id: Iab8e053c6ccacbeedaa7763e760d0c12e756b5d0
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
2017-03-22 12:55:20 -06:00

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/*
* Copyright (c) 2013-2015, 2017 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* RMNET Data configuration specification
*/
#ifndef _RMNET_DATA_H_
#define _RMNET_DATA_H_
/* ***************** Constants ********************************************** */
#define RMNET_LOCAL_LOGICAL_ENDPOINT -1
#define RMNET_EGRESS_FORMAT__RESERVED__ (1<<0)
#define RMNET_EGRESS_FORMAT_MAP (1<<1)
#define RMNET_EGRESS_FORMAT_AGGREGATION (1<<2)
#define RMNET_EGRESS_FORMAT_MUXING (1<<3)
#define RMNET_EGRESS_FORMAT_MAP_CKSUMV3 (1<<4)
#define RMNET_EGRESS_FORMAT_MAP_CKSUMV4 (1<<5)
#define RMNET_INGRESS_FIX_ETHERNET (1<<0)
#define RMNET_INGRESS_FORMAT_MAP (1<<1)
#define RMNET_INGRESS_FORMAT_DEAGGREGATION (1<<2)
#define RMNET_INGRESS_FORMAT_DEMUXING (1<<3)
#define RMNET_INGRESS_FORMAT_MAP_COMMANDS (1<<4)
#define RMNET_INGRESS_FORMAT_MAP_CKSUMV3 (1<<5)
#define RMNET_INGRESS_FORMAT_MAP_CKSUMV4 (1<<6)
/* ***************** Netlink API ******************************************** */
#define RMNET_NETLINK_PROTO 31
#define RMNET_MAX_STR_LEN 16
#define RMNET_NL_DATA_MAX_LEN 64
#define RMNET_NETLINK_MSG_COMMAND 0
#define RMNET_NETLINK_MSG_RETURNCODE 1
#define RMNET_NETLINK_MSG_RETURNDATA 2
struct rmnet_nl_msg_s {
uint16_t reserved;
uint16_t message_type;
uint16_t reserved2:14;
uint16_t crd:2;
union {
uint16_t arg_length;
uint16_t return_code;
};
union {
uint8_t data[RMNET_NL_DATA_MAX_LEN];
struct {
uint8_t dev[RMNET_MAX_STR_LEN];
uint32_t flags;
uint16_t agg_size;
uint16_t agg_count;
uint8_t tail_spacing;
} data_format;
struct {
uint8_t dev[RMNET_MAX_STR_LEN];
int32_t ep_id;
uint8_t operating_mode;
uint8_t next_dev[RMNET_MAX_STR_LEN];
} local_ep_config;
struct {
uint32_t id;
uint8_t vnd_name[RMNET_MAX_STR_LEN];
} vnd;
struct {
uint32_t id;
uint32_t map_flow_id;
uint32_t tc_flow_id;
} flow_control;
};
};
enum rmnet_netlink_message_types_e {
/*
* RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE - Register RMNET data driver
* on a particular device.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: status code
*/
RMNET_NETLINK_ASSOCIATE_NETWORK_DEVICE,
/*
* RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE - Unregister RMNET data
* driver on a particular
* device.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: status code
*/
RMNET_NETLINK_UNASSOCIATE_NETWORK_DEVICE,
/*
* RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED - Get if RMNET data
* driver is registered on a
* particular device.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: 1 if registered, 0 if not
*/
RMNET_NETLINK_GET_NETWORK_DEVICE_ASSOCIATED,
/*
* RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT - Sets the egress data
* format for a particular
* link.
* Args: uint32_t egress_flags
* char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: status code
*/
RMNET_NETLINK_SET_LINK_EGRESS_DATA_FORMAT,
/*
* RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT - Gets the egress data
* format for a particular
* link.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: 4-bytes data: uint32_t egress_flags
*/
RMNET_NETLINK_GET_LINK_EGRESS_DATA_FORMAT,
/*
* RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT - Sets the ingress data
* format for a particular
* link.
* Args: uint32_t ingress_flags
* char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: status code
*/
RMNET_NETLINK_SET_LINK_INGRESS_DATA_FORMAT,
/*
* RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT - Gets the ingress data
* format for a particular
* link.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* Returns: 4-bytes data: uint32_t ingress_flags
*/
RMNET_NETLINK_GET_LINK_INGRESS_DATA_FORMAT,
/*
* RMNET_NETLINK_SET_LOGICAL_EP_CONFIG - Sets the logical endpoint
* configuration for a particular
* link.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* int32_t logical_ep_id, valid values are -1 through 31
* uint8_t rmnet_mode: one of none, vnd, bridged
* char[] egress_dev_name: Egress device if operating in bridge mode
* Returns: status code
*/
RMNET_NETLINK_SET_LOGICAL_EP_CONFIG,
/*
* RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG - Un-sets the logical endpoint
* configuration for a particular
* link.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* int32_t logical_ep_id, valid values are -1 through 31
* Returns: status code
*/
RMNET_NETLINK_UNSET_LOGICAL_EP_CONFIG,
/*
* RMNET_NETLINK_GET_LOGICAL_EP_CONFIG - Gets the logical endpoint
* configuration for a particular
* link.
* Args: char[] dev_name: Null terminated ASCII string, max length: 15
* int32_t logical_ep_id, valid values are -1 through 31
* Returns: uint8_t rmnet_mode: one of none, vnd, bridged
* char[] egress_dev_name: Egress device
*/
RMNET_NETLINK_GET_LOGICAL_EP_CONFIG,
/*
* RMNET_NETLINK_NEW_VND - Creates a new virtual network device node
* Args: int32_t node number
* Returns: status code
*/
RMNET_NETLINK_NEW_VND,
/*
* RMNET_NETLINK_NEW_VND_WITH_PREFIX - Creates a new virtual network
* device node with the specified
* prefix for the device name
* Args: int32_t node number
* char[] vnd_name - Use as prefix
* Returns: status code
*/
RMNET_NETLINK_NEW_VND_WITH_PREFIX,
/*
* RMNET_NETLINK_GET_VND_NAME - Gets the string name of a VND from ID
* Args: int32_t node number
* Returns: char[] vnd_name
*/
RMNET_NETLINK_GET_VND_NAME,
/*
* RMNET_NETLINK_FREE_VND - Removes virtual network device node
* Args: int32_t node number
* Returns: status code
*/
RMNET_NETLINK_FREE_VND,
/*
* RMNET_NETLINK_ADD_VND_TC_FLOW - Add flow control handle on VND
* Args: int32_t node number
* uint32_t MAP Flow Handle
* uint32_t TC Flow Handle
* Returns: status code
*/
RMNET_NETLINK_ADD_VND_TC_FLOW,
/*
* RMNET_NETLINK_DEL_VND_TC_FLOW - Removes flow control handle on VND
* Args: int32_t node number
* uint32_t MAP Flow Handle
* Returns: status code
*/
RMNET_NETLINK_DEL_VND_TC_FLOW,
/*
* RMNET_NETLINK_NEW_VND_WITH_NAME - Creates a new virtual network
* device node with the specified
* device name
* Args: int32_t node number
* char[] vnd_name - Use as name
* Returns: status code
*/
RMNET_NETLINK_NEW_VND_WITH_NAME
};
#define RMNET_NETLINK_NEW_VND_WITH_NAME RMNET_NETLINK_NEW_VND_WITH_NAME
enum rmnet_config_endpoint_modes_e {
/* Pass the frame up the stack with no modifications to skb->dev */
RMNET_EPMODE_NONE,
/* Replace skb->dev to a virtual rmnet device and pass up the stack */
RMNET_EPMODE_VND,
/* Pass the frame directly to another device with dev_queue_xmit(). */
RMNET_EPMODE_BRIDGE,
/* Must be the last item in the list */
RMNET_EPMODE_LENGTH
};
enum rmnet_config_return_codes_e {
RMNET_CONFIG_OK,
RMNET_CONFIG_UNKNOWN_MESSAGE,
RMNET_CONFIG_UNKNOWN_ERROR,
RMNET_CONFIG_NOMEM,
RMNET_CONFIG_DEVICE_IN_USE,
RMNET_CONFIG_INVALID_REQUEST,
RMNET_CONFIG_NO_SUCH_DEVICE,
RMNET_CONFIG_BAD_ARGUMENTS,
RMNET_CONFIG_BAD_EGRESS_DEVICE,
RMNET_CONFIG_TC_HANDLE_FULL
};
#endif /* _RMNET_DATA_H_ */
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