/*
* Copyright (c) 2013-2014, 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_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)
/* ***************** 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
};
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_ */