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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* 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>
* Copyright (C) 2020 Intel Corporation
*/
#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, uses optional parameter:
* %HWSIM_ATTR_REG_STRICT_REG, %HWSIM_ATTR_SUPPORT_P2P_DEVICE,
* %HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE, %HWSIM_ATTR_CHANNELS,
* %HWSIM_ATTR_NO_VIF, %HWSIM_ATTR_RADIO_NAME, %HWSIM_ATTR_USE_CHANCTX,
* %HWSIM_ATTR_REG_HINT_ALPHA2, %HWSIM_ATTR_REG_CUSTOM_REG,
* %HWSIM_ATTR_PERM_ADDR
* @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_ADD_MAC_ADDR: add a receive MAC address (given in the
* %HWSIM_ATTR_ADDR_RECEIVER attribute) to a device identified by
* %HWSIM_ATTR_ADDR_TRANSMITTER. This lets wmediumd forward frames
* to this receiver address for a given station.
* @HWSIM_CMD_DEL_MAC_ADDR: remove the MAC address again, the attributes
* are the same as to @HWSIM_CMD_ADD_MAC_ADDR.
* @__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_ADD_MAC_ADDR,
HWSIM_CMD_DEL_MAC_ADDR,
__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_PERM_ADDR: permanent mac address of new radio
* @HWSIM_ATTR_IFTYPE_SUPPORT: u32 attribute of supported interface types bits
* @HWSIM_ATTR_CIPHER_SUPPORT: u32 array of supported cipher types
* @__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_PERM_ADDR,
HWSIM_ATTR_IFTYPE_SUPPORT,
HWSIM_ATTR_CIPHER_SUPPORT,
__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;
/**
* DOC: Frame transmission support over virtio
*
* Frame transmission is also supported over virtio to allow communication
* with external entities.
*/
/**
* enum hwsim_vqs - queues for virtio frame transmission
*
* @HWSIM_VQ_TX: send frames to external entity
* @HWSIM_VQ_RX: receive frames and transmission info reports
* @HWSIM_NUM_VQS: enum limit
*/
enum {
HWSIM_VQ_TX,
HWSIM_VQ_RX,
HWSIM_NUM_VQS,
};
#endif /* __MAC80211_HWSIM_H */
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