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Release 4.16 drivers/net/wireless/mac80211_hwsim.h

Directory: drivers/net/wireless
/*
 * 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_ATTR_FREQ (optional)
 * @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, %WSIM_ATTR_TX_INFO_FLAGS,
 *      %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
 * @HWSIM_CMD_NEW_RADIO: create a new radio with the given parameters,
 *      returns the radio ID (>= 0) or negative on errors, if successful
 *      then multicast the result
 * @HWSIM_CMD_DEL_RADIO: destroy a radio, reply is multicasted
 * @HWSIM_CMD_GET_RADIO: fetch information about existing radios, uses:
 *      %HWSIM_ATTR_RADIO_ID
 * @__HWSIM_CMD_MAX: enum limit
 */

enum {
	
HWSIM_CMD_UNSPEC,
	
HWSIM_CMD_REGISTER,
	
HWSIM_CMD_FRAME,
	
HWSIM_CMD_TX_INFO_FRAME,
	
HWSIM_CMD_NEW_RADIO,
	
HWSIM_CMD_DEL_RADIO,
	
HWSIM_CMD_GET_RADIO,
	
__HWSIM_CMD_MAX,
};

#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)


#define HWSIM_CMD_CREATE_RADIO   HWSIM_CMD_NEW_RADIO

#define HWSIM_CMD_DESTROY_RADIO  HWSIM_CMD_DEL_RADIO

/**
 * 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_CHANNELS: u32 attribute used with the %HWSIM_CMD_CREATE_RADIO
 *      command giving the number of channels supported by the new radio
 * @HWSIM_ATTR_RADIO_ID: u32 attribute used with %HWSIM_CMD_DESTROY_RADIO
 *      only to destroy a radio
 * @HWSIM_ATTR_REG_HINT_ALPHA2: alpha2 for regulatoro driver hint
 *      (nla string, length 2)
 * @HWSIM_ATTR_REG_CUSTOM_REG: custom regulatory domain index (u32 attribute)
 * @HWSIM_ATTR_REG_STRICT_REG: request REGULATORY_STRICT_REG (flag attribute)
 * @HWSIM_ATTR_SUPPORT_P2P_DEVICE: support P2P Device virtual interface (flag)
 * @HWSIM_ATTR_USE_CHANCTX: used with the %HWSIM_CMD_CREATE_RADIO
 *      command to force use of channel contexts even when only a
 *      single channel is supported
 * @HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE: used with the %HWSIM_CMD_CREATE_RADIO
 *      command to force radio removal when process that created the radio dies
 * @HWSIM_ATTR_RADIO_NAME: Name of radio, e.g. phy666
 * @HWSIM_ATTR_NO_VIF:  Do not create vif (wlanX) when creating radio.
 * @HWSIM_ATTR_FREQ: Frequency at which packet is transmitted or received.
 * @HWSIM_ATTR_TX_INFO_FLAGS: additional flags for corresponding
 *      rates of %HWSIM_ATTR_TX_INFO
 * @__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_CHANNELS,
	
HWSIM_ATTR_RADIO_ID,
	
HWSIM_ATTR_REG_HINT_ALPHA2,
	
HWSIM_ATTR_REG_CUSTOM_REG,
	
HWSIM_ATTR_REG_STRICT_REG,
	
HWSIM_ATTR_SUPPORT_P2P_DEVICE,
	
HWSIM_ATTR_USE_CHANCTX,
	
HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
	
HWSIM_ATTR_RADIO_NAME,
	
HWSIM_ATTR_NO_VIF,
	
HWSIM_ATTR_FREQ,
	
HWSIM_ATTR_PAD,
	
HWSIM_ATTR_TX_INFO_FLAGS,
	
__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;

/**
 * enum hwsim_tx_rate_flags - per-rate flags set by the rate control algorithm.
 *      Inspired by structure mac80211_rate_control_flags. New flags may be
 *      appended, but old flags not deleted, to keep compatibility for
 *      userspace.
 *
 * These flags are set by the Rate control algorithm for each rate during tx,
 * in the @flags member of struct ieee80211_tx_rate.
 *
 * @MAC80211_HWSIM_TX_RC_USE_RTS_CTS: Use RTS/CTS exchange for this rate.
 * @MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
 *      This is set if the current BSS requires ERP protection.
 * @MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE: Use short preamble.
 * @MAC80211_HWSIM_TX_RC_MCS: HT rate.
 * @MAC80211_HWSIM_TX_RC_VHT_MCS: VHT MCS rate, in this case the idx field is
 *      split into a higher 4 bits (Nss) and lower 4 bits (MCS number)
 * @MAC80211_HWSIM_TX_RC_GREEN_FIELD: Indicates whether this rate should be used
 *      in Greenfield mode.
 * @MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH: Indicates if the Channel Width should be
 *      40 MHz.
 * @MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH: Indicates 80 MHz transmission
 * @MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH: Indicates 160 MHz transmission
 *      (80+80 isn't supported yet)
 * @MAC80211_HWSIM_TX_RC_DUP_DATA: The frame should be transmitted on both of
 *      the adjacent 20 MHz channels, if the current channel type is
 *      NL80211_CHAN_HT40MINUS or NL80211_CHAN_HT40PLUS.
 * @MAC80211_HWSIM_TX_RC_SHORT_GI: Short Guard interval should be used for this
 *      rate.
 */

enum hwsim_tx_rate_flags {
	
MAC80211_HWSIM_TX_RC_USE_RTS_CTS		= BIT(0),
	
MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT		= BIT(1),
	
MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE	= BIT(2),

	/* rate index is an HT/VHT MCS instead of an index */
	
MAC80211_HWSIM_TX_RC_MCS			= BIT(3),
	
MAC80211_HWSIM_TX_RC_GREEN_FIELD		= BIT(4),
	
MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH		= BIT(5),
	
MAC80211_HWSIM_TX_RC_DUP_DATA		= BIT(6),
	
MAC80211_HWSIM_TX_RC_SHORT_GI		= BIT(7),
	
MAC80211_HWSIM_TX_RC_VHT_MCS			= BIT(8),
	
MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH		= BIT(9),
	
MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH		= BIT(10),
};

/**
 * 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_flag {
	
s8 idx;
	
u16 flags;

} __packed;
#endif /* __MAC80211_HWSIM_H */

Overall Contributors
PersonTokensPropCommitsCommitProp
Benjamin Beichler10043.10%17.69%


Javier Lopez9440.52%17.69%


Johannes Berg146.03%323.08%


Jukka Rissanen125.17%215.38%


Ben Greear62.59%323.08%


Nicolas Dichtel20.86%17.69%


Patrik Flykt20.86%17.69%


Luciano Coelho20.86%17.69%


Total232100.00%13100.00%


Directory: drivers/net/wireless



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