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/*
* mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
* Copyright (c) 2008, Jouni Malinen <j@w1.fi>
* Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
*
* 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.
*/
#ifndef __MAC80211_HWSIM_H
#define __MAC80211_HWSIM_H
/**
* enum hwsim_tx_control_flags - flags to describe transmission info/status
*
* These flags are used to give the wmediumd extra information in order to
* modify its behavior for each frame
*
* @HWSIM_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame.
* @HWSIM_TX_CTL_NO_ACK: tell the wmediumd not to wait for an ack
* @HWSIM_TX_STAT_ACK: Frame was acknowledged
*
*/
enum hwsim_tx_control_flags {
HWSIM_TX_CTL_REQ_TX_STATUS = BIT(0),
HWSIM_TX_CTL_NO_ACK = BIT(1),
HWSIM_TX_STAT_ACK = BIT(2),
};
/**
* DOC: Frame transmission/registration support
*
* Frame transmission and registration support exists to allow userspace
* entities such as wmediumd to receive and process all broadcasted
* frames from a mac80211_hwsim radio device.
*
* This allow user space applications to decide if the frame should be
* dropped or not and implement a wireless medium simulator at user space.
*
* Registration is done by sending a register message to the driver and
* will be automatically unregistered if the user application doesn't
* responds to sent frames.
* Once registered the user application has to take responsibility of
* broadcasting the frames to all listening mac80211_hwsim radio
* interfaces.
*
* For more technical details, see the corresponding command descriptions
* below.
*/
/**
* enum hwsim_commands - supported hwsim commands
*
* @HWSIM_CMD_UNSPEC: unspecified command to catch errors
*
* @HWSIM_CMD_REGISTER: request to register and received all broadcasted
* frames by any mac80211_hwsim radio device.
* @HWSIM_CMD_FRAME: send/receive a broadcasted frame from/to kernel/user
* space, uses:
* %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER,
* %HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE,
* %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
* @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to
* kernel, uses:
* %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS,
* %HWSIM_ATTR_TX_INFO, %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
* @__HWSIM_CMD_MAX: enum limit
*/
enum {
HWSIM_CMD_UNSPEC,
HWSIM_CMD_REGISTER,
HWSIM_CMD_FRAME,
HWSIM_CMD_TX_INFO_FRAME,
__HWSIM_CMD_MAX,
};
#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)
/**
* enum hwsim_attrs - hwsim netlink attributes
*
* @HWSIM_ATTR_UNSPEC: unspecified attribute to catch errors
*
* @HWSIM_ATTR_ADDR_RECEIVER: MAC address of the radio device that
* the frame is broadcasted to
* @HWSIM_ATTR_ADDR_TRANSMITTER: MAC address of the radio device that
* the frame was broadcasted from
* @HWSIM_ATTR_FRAME: Data array
* @HWSIM_ATTR_FLAGS: mac80211 transmission flags, used to process
properly the frame at user space
* @HWSIM_ATTR_RX_RATE: estimated rx rate index for this frame at user
space
* @HWSIM_ATTR_SIGNAL: estimated RX signal for this frame at user
space
* @HWSIM_ATTR_TX_INFO: ieee80211_tx_rate array
* @HWSIM_ATTR_COOKIE: sk_buff cookie to identify the frame
* @__HWSIM_ATTR_MAX: enum limit
*/
enum {
HWSIM_ATTR_UNSPEC,
HWSIM_ATTR_ADDR_RECEIVER,
HWSIM_ATTR_ADDR_TRANSMITTER,
HWSIM_ATTR_FRAME,
HWSIM_ATTR_FLAGS,
HWSIM_ATTR_RX_RATE,
HWSIM_ATTR_SIGNAL,
HWSIM_ATTR_TX_INFO,
HWSIM_ATTR_COOKIE,
__HWSIM_ATTR_MAX,
};
#define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1)
/**
* struct hwsim_tx_rate - rate selection/status
*
* @idx: rate index to attempt to send with
* @count: number of tries in this rate before going to the next rate
*
* A value of -1 for @idx indicates an invalid rate and, if used
* in an array of retry rates, that no more rates should be tried.
*
* When used for transmit status reporting, the driver should
* always report the rate and number of retries used.
*
*/
struct hwsim_tx_rate {
s8 idx;
u8 count;
} __packed;
#endif /* __MAC80211_HWSIM_H */
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