| /* 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, 2022 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_MLO_SUPPORT: claim MLO support (exact parameters TBD) for |
| * the new radio |
| * @__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_MLO_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 */ |
