drivers/net/wireless/mac80211_hwsim.h

   1 /*
   2  * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
   3  * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __MAC80211_HWSIM_H
  12 #define __MAC80211_HWSIM_H
  13
  14 /**
  15  * enum hwsim_tx_control_flags - flags to describe transmission info/status
  16  *
  17  * These flags are used to give the wmediumd extra information in order to
  18  * modify its behavior for each frame
  19  *
  20  * @HWSIM_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame.
  21  * @HWSIM_TX_CTL_NO_ACK: tell the wmediumd not to wait for an ack
  22  * @HWSIM_TX_STAT_ACK: Frame was acknowledged
  23  *
  24  */
  25 enum hwsim_tx_control_flags {
  26         HWSIM_TX_CTL_REQ_TX_STATUS              = BIT(0),
  27         HWSIM_TX_CTL_NO_ACK                     = BIT(1),
  28         HWSIM_TX_STAT_ACK                       = BIT(2),
  29 };
  30
  31 /**
  32  * DOC: Frame transmission/registration support
  33  *
  34  * Frame transmission and registration support exists to allow userspace
  35  * entities such as wmediumd to receive and process all broadcasted
  36  * frames from a mac80211_hwsim radio device.
  37  *
  38  * This allow user space applications to decide if the frame should be
  39  * dropped or not and implement a wireless medium simulator at user space.
  40  *
  41  * Registration is done by sending a register message to the driver and
  42  * will be automatically unregistered if the user application doesn't
  43  * responds to sent frames.
  44  * Once registered the user application has to take responsibility of
  45  * broadcasting the frames to all listening mac80211_hwsim radio
  46  * interfaces.
  47  *
  48  * For more technical details, see the corresponding command descriptions
  49  * below.
  50  */
  51
  52 /**
  53  * enum hwsim_commands - supported hwsim commands
  54  *
  55  * @HWSIM_CMD_UNSPEC: unspecified command to catch errors
  56  *
  57  * @HWSIM_CMD_REGISTER: request to register and received all broadcasted
  58  *      frames by any mac80211_hwsim radio device.
  59  * @HWSIM_CMD_FRAME: send/receive a broadcasted frame from/to kernel/user
  60  * space, uses:
  61  *      %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER,
  62  *      %HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE,
  63  *      %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
  64  * @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to
  65  * kernel, uses:
  66  *      %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS,
  67  *      %HWSIM_ATTR_TX_INFO, %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
  68  * @__HWSIM_CMD_MAX: enum limit
  69  */
  70 enum {
  71         HWSIM_CMD_UNSPEC,
  72         HWSIM_CMD_REGISTER,
  73         HWSIM_CMD_FRAME,
  74         HWSIM_CMD_TX_INFO_FRAME,
  75         __HWSIM_CMD_MAX,
  76 };
  77 #define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1)
  78
  79 /**
  80  * enum hwsim_attrs - hwsim netlink attributes
  81  *
  82  * @HWSIM_ATTR_UNSPEC: unspecified attribute to catch errors
  83  *
  84  * @HWSIM_ATTR_ADDR_RECEIVER: MAC address of the radio device that
  85  *      the frame is broadcasted to
  86  * @HWSIM_ATTR_ADDR_TRANSMITTER: MAC address of the radio device that
  87  *      the frame was broadcasted from
  88  * @HWSIM_ATTR_FRAME: Data array
  89  * @HWSIM_ATTR_FLAGS: mac80211 transmission flags, used to process
  90         properly the frame at user space
  91  * @HWSIM_ATTR_RX_RATE: estimated rx rate index for this frame at user
  92         space
  93  * @HWSIM_ATTR_SIGNAL: estimated RX signal for this frame at user
  94         space
  95  * @HWSIM_ATTR_TX_INFO: ieee80211_tx_rate array
  96  * @HWSIM_ATTR_COOKIE: sk_buff cookie to identify the frame
  97  * @__HWSIM_ATTR_MAX: enum limit
  98  */
  99
 100
 101 enum {
 102         HWSIM_ATTR_UNSPEC,
 103         HWSIM_ATTR_ADDR_RECEIVER,
 104         HWSIM_ATTR_ADDR_TRANSMITTER,
 105         HWSIM_ATTR_FRAME,
 106         HWSIM_ATTR_FLAGS,
 107         HWSIM_ATTR_RX_RATE,
 108         HWSIM_ATTR_SIGNAL,
 109         HWSIM_ATTR_TX_INFO,
 110         HWSIM_ATTR_COOKIE,
 111         __HWSIM_ATTR_MAX,
 112 };
 113 #define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1)
 114
 115 /**
 116  * struct hwsim_tx_rate - rate selection/status
 117  *
 118  * @idx: rate index to attempt to send with
 119  * @count: number of tries in this rate before going to the next rate
 120  *
 121  * A value of -1 for @idx indicates an invalid rate and, if used
 122  * in an array of retry rates, that no more rates should be tried.
 123  *
 124  * When used for transmit status reporting, the driver should
 125  * always report the rate and number of retries used.
 126  *
 127  */
 128 struct hwsim_tx_rate {
 129         s8 idx;
 130         u8 count;
 131 } __packed;
 132
 133 #endif /* __MAC80211_HWSIM_H */