drivers/net/wireless/mac80211_hwsim.c

   1 /*
   2  * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
   3  * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 /*
  11  * TODO:
  12  * - IBSS mode simulation (Beacon transmission with competition for "air time")
  13  * - RX filtering based on filter configuration (data->rx_filter)
  14  */
  15
  16 #include <linux/list.h>
  17 #include <linux/spinlock.h>
  18 #include <net/dst.h>
  19 #include <net/xfrm.h>
  20 #include <net/mac80211.h>
  21 #include <net/ieee80211_radiotap.h>
  22 #include <linux/if_arp.h>
  23 #include <linux/rtnetlink.h>
  24 #include <linux/etherdevice.h>
  25 #include <linux/debugfs.h>
  26
  27 MODULE_AUTHOR("Jouni Malinen");
  28 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
  29 MODULE_LICENSE("GPL");
  30
  31 static int radios = 2;
  32 module_param(radios, int, 0444);
  33 MODULE_PARM_DESC(radios, "Number of simulated radios");
  34
  35 /**
  36  * enum hwsim_regtest - the type of regulatory tests we offer
  37  *
  38  * These are the different values you can use for the regtest
  39  * module parameter. This is useful to help test world roaming
  40  * and the driver regulatory_hint() call and combinations of these.
  41  * If you want to do specific alpha2 regulatory domain tests simply
  42  * use the userspace regulatory request as that will be respected as
  43  * well without the need of this module parameter. This is designed
  44  * only for testing the driver regulatory request, world roaming
  45  * and all possible combinations.
  46  *
  47  * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
  48  *      this is the default value.
  49  * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
  50  *      hint, only one driver regulatory hint will be sent as such the
  51  *      secondary radios are expected to follow.
  52  * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
  53  *      request with all radios reporting the same regulatory domain.
  54  * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
  55  *      different regulatory domains requests. Expected behaviour is for
  56  *      an intersection to occur but each device will still use their
  57  *      respective regulatory requested domains. Subsequent radios will
  58  *      use the resulting intersection.
  59  * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
  60  *      this by using a custom beacon-capable regulatory domain for the first
  61  *      radio. All other device world roam.
  62  * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
  63  *      domain requests. All radios will adhere to this custom world regulatory
  64  *      domain.
  65  * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
  66  *      domain requests. The first radio will adhere to the first custom world
  67  *      regulatory domain, the second one to the second custom world regulatory
  68  *      domain. All other devices will world roam.
  69  * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
  70  *      settings, only the first radio will send a regulatory domain request
  71  *      and use strict settings. The rest of the radios are expected to follow.
  72  * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
  73  *      settings. All radios will adhere to this.
  74  * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
  75  *      domain settings, combined with secondary driver regulatory domain
  76  *      settings. The first radio will get a strict regulatory domain setting
  77  *      using the first driver regulatory request and the second radio will use
  78  *      non-strict settings using the second driver regulatory request. All
  79  *      other devices should follow the intersection created between the
  80  *      first two.
  81  * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
  82  *      at least 6 radios for a complete test. We will test in this order:
  83  *      1 - driver custom world regulatory domain
  84  *      2 - second custom world regulatory domain
  85  *      3 - first driver regulatory domain request
  86  *      4 - second driver regulatory domain request
  87  *      5 - strict regulatory domain settings using the third driver regulatory
  88  *          domain request
  89  *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
  90  *                 regulatory requests.
  91  */
  92 enum hwsim_regtest {
  93         HWSIM_REGTEST_DISABLED = 0,
  94         HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
  95         HWSIM_REGTEST_DRIVER_REG_ALL = 2,
  96         HWSIM_REGTEST_DIFF_COUNTRY = 3,
  97         HWSIM_REGTEST_WORLD_ROAM = 4,
  98         HWSIM_REGTEST_CUSTOM_WORLD = 5,
  99         HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
 100         HWSIM_REGTEST_STRICT_FOLLOW = 7,
 101         HWSIM_REGTEST_STRICT_ALL = 8,
 102         HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
 103         HWSIM_REGTEST_ALL = 10,
 104 };
 105
 106 /* Set to one of the HWSIM_REGTEST_* values above */
 107 static int regtest = HWSIM_REGTEST_DISABLED;
 108 module_param(regtest, int, 0444);
 109 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
 110
 111 static const char *hwsim_alpha2s[] = {
 112         "FI",
 113         "AL",
 114         "US",
 115         "DE",
 116         "JP",
 117         "AL",
 118 };
 119
 120 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
 121         .n_reg_rules = 4,
 122         .alpha2 =  "99",
 123         .reg_rules = {
 124                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 125                 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
 126                 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
 127                 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
 128         }
 129 };
 130
 131 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
 132         .n_reg_rules = 2,
 133         .alpha2 =  "99",
 134         .reg_rules = {
 135                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 136                 REG_RULE(5725-10, 5850+10, 40, 0, 30,
 137                         NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
 138         }
 139 };
 140
 141 struct hwsim_vif_priv {
 142         u32 magic;
 143         u8 bssid[ETH_ALEN];
 144         bool assoc;
 145         u16 aid;
 146 };
 147
 148 #define HWSIM_VIF_MAGIC 0x69537748
 149
 150 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
 151 {
 152         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 153         WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
 154 }
 155
 156 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
 157 {
 158         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 159         vp->magic = HWSIM_VIF_MAGIC;
 160 }
 161
 162 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
 163 {
 164         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 165         vp->magic = 0;
 166 }
 167
 168 struct hwsim_sta_priv {
 169         u32 magic;
 170 };
 171
 172 #define HWSIM_STA_MAGIC 0x6d537748
 173
 174 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
 175 {
 176         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 177         WARN_ON(sp->magic != HWSIM_STA_MAGIC);
 178 }
 179
 180 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
 181 {
 182         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 183         sp->magic = HWSIM_STA_MAGIC;
 184 }
 185
 186 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
 187 {
 188         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 189         sp->magic = 0;
 190 }
 191
 192 static struct class *hwsim_class;
 193
 194 static struct net_device *hwsim_mon; /* global monitor netdev */
 195
 196 #define CHAN2G(_freq)  { \
 197         .band = IEEE80211_BAND_2GHZ, \
 198         .center_freq = (_freq), \
 199         .hw_value = (_freq), \
 200         .max_power = 20, \
 201 }
 202
 203 #define CHAN5G(_freq) { \
 204         .band = IEEE80211_BAND_5GHZ, \
 205         .center_freq = (_freq), \
 206         .hw_value = (_freq), \
 207         .max_power = 20, \
 208 }
 209
 210 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
 211         CHAN2G(2412), /* Channel 1 */
 212         CHAN2G(2417), /* Channel 2 */
 213         CHAN2G(2422), /* Channel 3 */
 214         CHAN2G(2427), /* Channel 4 */
 215         CHAN2G(2432), /* Channel 5 */
 216         CHAN2G(2437), /* Channel 6 */
 217         CHAN2G(2442), /* Channel 7 */
 218         CHAN2G(2447), /* Channel 8 */
 219         CHAN2G(2452), /* Channel 9 */
 220         CHAN2G(2457), /* Channel 10 */
 221         CHAN2G(2462), /* Channel 11 */
 222         CHAN2G(2467), /* Channel 12 */
 223         CHAN2G(2472), /* Channel 13 */
 224         CHAN2G(2484), /* Channel 14 */
 225 };
 226
 227 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
 228         CHAN5G(5180), /* Channel 36 */
 229         CHAN5G(5200), /* Channel 40 */
 230         CHAN5G(5220), /* Channel 44 */
 231         CHAN5G(5240), /* Channel 48 */
 232
 233         CHAN5G(5260), /* Channel 52 */
 234         CHAN5G(5280), /* Channel 56 */
 235         CHAN5G(5300), /* Channel 60 */
 236         CHAN5G(5320), /* Channel 64 */
 237
 238         CHAN5G(5500), /* Channel 100 */
 239         CHAN5G(5520), /* Channel 104 */
 240         CHAN5G(5540), /* Channel 108 */
 241         CHAN5G(5560), /* Channel 112 */
 242         CHAN5G(5580), /* Channel 116 */
 243         CHAN5G(5600), /* Channel 120 */
 244         CHAN5G(5620), /* Channel 124 */
 245         CHAN5G(5640), /* Channel 128 */
 246         CHAN5G(5660), /* Channel 132 */
 247         CHAN5G(5680), /* Channel 136 */
 248         CHAN5G(5700), /* Channel 140 */
 249
 250         CHAN5G(5745), /* Channel 149 */
 251         CHAN5G(5765), /* Channel 153 */
 252         CHAN5G(5785), /* Channel 157 */
 253         CHAN5G(5805), /* Channel 161 */
 254         CHAN5G(5825), /* Channel 165 */
 255 };
 256
 257 static const struct ieee80211_rate hwsim_rates[] = {
 258         { .bitrate = 10 },
 259         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 260         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 261         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 262         { .bitrate = 60 },
 263         { .bitrate = 90 },
 264         { .bitrate = 120 },
 265         { .bitrate = 180 },
 266         { .bitrate = 240 },
 267         { .bitrate = 360 },
 268         { .bitrate = 480 },
 269         { .bitrate = 540 }
 270 };
 271
 272 static spinlock_t hwsim_radio_lock;
 273 static struct list_head hwsim_radios;
 274
 275 struct mac80211_hwsim_data {
 276         struct list_head list;
 277         struct ieee80211_hw *hw;
 278         struct device *dev;
 279         struct ieee80211_supported_band bands[2];
 280         struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
 281         struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
 282         struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
 283
 284         struct ieee80211_channel *channel;
 285         unsigned long beacon_int; /* in jiffies unit */
 286         unsigned int rx_filter;
 287         bool started, idle;
 288         struct timer_list beacon_timer;
 289         enum ps_mode {
 290                 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
 291         } ps;
 292         bool ps_poll_pending;
 293         struct dentry *debugfs;
 294         struct dentry *debugfs_ps;
 295
 296         /*
 297          * Only radios in the same group can communicate together (the
 298          * channel has to match too). Each bit represents a group. A
 299          * radio can be in more then one group.
 300          */
 301         u64 group;
 302         struct dentry *debugfs_group;
 303 };
 304
 305
 306 struct hwsim_radiotap_hdr {
 307         struct ieee80211_radiotap_header hdr;
 308         u8 rt_flags;
 309         u8 rt_rate;
 310         __le16 rt_channel;
 311         __le16 rt_chbitmask;
 312 } __attribute__ ((packed));
 313
 314
 315 static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
 316                                         struct net_device *dev)
 317 {
 318         /* TODO: allow packet injection */
 319         dev_kfree_skb(skb);
 320         return NETDEV_TX_OK;
 321 }
 322
 323
 324 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
 325                                       struct sk_buff *tx_skb)
 326 {
 327         struct mac80211_hwsim_data *data = hw->priv;
 328         struct sk_buff *skb;
 329         struct hwsim_radiotap_hdr *hdr;
 330         u16 flags;
 331         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
 332         struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
 333
 334         if (!netif_running(hwsim_mon))
 335                 return;
 336
 337         skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
 338         if (skb == NULL)
 339                 return;
 340
 341         hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
 342         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
 343         hdr->hdr.it_pad = 0;
 344         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
 345         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
 346                                           (1 << IEEE80211_RADIOTAP_RATE) |
 347                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
 348         hdr->rt_flags = 0;
 349         hdr->rt_rate = txrate->bitrate / 5;
 350         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
 351         flags = IEEE80211_CHAN_2GHZ;
 352         if (txrate->flags & IEEE80211_RATE_ERP_G)
 353                 flags |= IEEE80211_CHAN_OFDM;
 354         else
 355                 flags |= IEEE80211_CHAN_CCK;
 356         hdr->rt_chbitmask = cpu_to_le16(flags);
 357
 358         skb->dev = hwsim_mon;
 359         skb_set_mac_header(skb, 0);
 360         skb->ip_summed = CHECKSUM_UNNECESSARY;
 361         skb->pkt_type = PACKET_OTHERHOST;
 362         skb->protocol = htons(ETH_P_802_2);
 363         memset(skb->cb, 0, sizeof(skb->cb));
 364         netif_rx(skb);
 365 }
 366
 367
 368 static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
 369 {
 370         struct mac80211_hwsim_data *data = hw->priv;
 371         struct sk_buff *skb;
 372         struct hwsim_radiotap_hdr *hdr;
 373         u16 flags;
 374         struct ieee80211_hdr *hdr11;
 375
 376         if (!netif_running(hwsim_mon))
 377                 return;
 378
 379         skb = dev_alloc_skb(100);
 380         if (skb == NULL)
 381                 return;
 382
 383         hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
 384         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
 385         hdr->hdr.it_pad = 0;
 386         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
 387         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
 388                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
 389         hdr->rt_flags = 0;
 390         hdr->rt_rate = 0;
 391         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
 392         flags = IEEE80211_CHAN_2GHZ;
 393         hdr->rt_chbitmask = cpu_to_le16(flags);
 394
 395         hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
 396         hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 397                                            IEEE80211_STYPE_ACK);
 398         hdr11->duration_id = cpu_to_le16(0);
 399         memcpy(hdr11->addr1, addr, ETH_ALEN);
 400
 401         skb->dev = hwsim_mon;
 402         skb_set_mac_header(skb, 0);
 403         skb->ip_summed = CHECKSUM_UNNECESSARY;
 404         skb->pkt_type = PACKET_OTHERHOST;
 405         skb->protocol = htons(ETH_P_802_2);
 406         memset(skb->cb, 0, sizeof(skb->cb));
 407         netif_rx(skb);
 408 }
 409
 410
 411 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
 412                            struct sk_buff *skb)
 413 {
 414         switch (data->ps) {
 415         case PS_DISABLED:
 416                 return true;
 417         case PS_ENABLED:
 418                 return false;
 419         case PS_AUTO_POLL:
 420                 /* TODO: accept (some) Beacons by default and other frames only
 421                  * if pending PS-Poll has been sent */
 422                 return true;
 423         case PS_MANUAL_POLL:
 424                 /* Allow unicast frames to own address if there is a pending
 425                  * PS-Poll */
 426                 if (data->ps_poll_pending &&
 427                     memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
 428                            ETH_ALEN) == 0) {
 429                         data->ps_poll_pending = false;
 430                         return true;
 431                 }
 432                 return false;
 433         }
 434
 435         return true;
 436 }
 437
 438
 439 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 440                                     struct sk_buff *skb)
 441 {
 442         struct mac80211_hwsim_data *data = hw->priv, *data2;
 443         bool ack = false;
 444         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 445         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 446         struct ieee80211_rx_status rx_status;
 447
 448         if (data->idle) {
 449                 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
 450                        wiphy_name(hw->wiphy));
 451                 return false;
 452         }
 453
 454         memset(&rx_status, 0, sizeof(rx_status));
 455         /* TODO: set mactime */
 456         rx_status.freq = data->channel->center_freq;
 457         rx_status.band = data->channel->band;
 458         rx_status.rate_idx = info->control.rates[0].idx;
 459         /* TODO: simulate real signal strength (and optional packet loss) */
 460         rx_status.signal = -50;
 461
 462         if (data->ps != PS_DISABLED)
 463                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
 464
 465         /* release the skb's source info */
 466         skb_orphan(skb);
 467         skb_dst_drop(skb);
 468         skb->mark = 0;
 469         secpath_reset(skb);
 470         nf_reset(skb);
 471
 472         /* Copy skb to all enabled radios that are on the current frequency */
 473         spin_lock(&hwsim_radio_lock);
 474         list_for_each_entry(data2, &hwsim_radios, list) {
 475                 struct sk_buff *nskb;
 476
 477                 if (data == data2)
 478                         continue;
 479
 480                 if (data2->idle || !data2->started ||
 481                     !hwsim_ps_rx_ok(data2, skb) ||
 482                     !data->channel || !data2->channel ||
 483                     data->channel->center_freq != data2->channel->center_freq ||
 484                     !(data->group & data2->group))
 485                         continue;
 486
 487                 nskb = skb_copy(skb, GFP_ATOMIC);
 488                 if (nskb == NULL)
 489                         continue;
 490
 491                 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
 492                            ETH_ALEN) == 0)
 493                         ack = true;
 494                 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
 495                 ieee80211_rx_irqsafe(data2->hw, nskb);
 496         }
 497         spin_unlock(&hwsim_radio_lock);
 498
 499         return ack;
 500 }
 501
 502
 503 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 504 {
 505         bool ack;
 506         struct ieee80211_tx_info *txi;
 507
 508         mac80211_hwsim_monitor_rx(hw, skb);
 509
 510         if (skb->len < 10) {
 511                 /* Should not happen; just a sanity check for addr1 use */
 512                 dev_kfree_skb(skb);
 513                 return NETDEV_TX_OK;
 514         }
 515
 516         ack = mac80211_hwsim_tx_frame(hw, skb);
 517         if (ack && skb->len >= 16) {
 518                 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 519                 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
 520         }
 521
 522         txi = IEEE80211_SKB_CB(skb);
 523
 524         if (txi->control.vif)
 525                 hwsim_check_magic(txi->control.vif);
 526         if (txi->control.sta)
 527                 hwsim_check_sta_magic(txi->control.sta);
 528
 529         ieee80211_tx_info_clear_status(txi);
 530         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
 531                 txi->flags |= IEEE80211_TX_STAT_ACK;
 532         ieee80211_tx_status_irqsafe(hw, skb);
 533         return NETDEV_TX_OK;
 534 }
 535
 536
 537 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
 538 {
 539         struct mac80211_hwsim_data *data = hw->priv;
 540         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 541         data->started = 1;
 542         return 0;
 543 }
 544
 545
 546 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
 547 {
 548         struct mac80211_hwsim_data *data = hw->priv;
 549         data->started = 0;
 550         del_timer(&data->beacon_timer);
 551         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 552 }
 553
 554
 555 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
 556                                         struct ieee80211_if_init_conf *conf)
 557 {
 558         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 559                wiphy_name(hw->wiphy), __func__, conf->type,
 560                conf->mac_addr);
 561         hwsim_set_magic(conf->vif);
 562         return 0;
 563 }
 564
 565
 566 static void mac80211_hwsim_remove_interface(
 567         struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
 568 {
 569         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 570                wiphy_name(hw->wiphy), __func__, conf->type,
 571                conf->mac_addr);
 572         hwsim_check_magic(conf->vif);
 573         hwsim_clear_magic(conf->vif);
 574 }
 575
 576
 577 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 578                                      struct ieee80211_vif *vif)
 579 {
 580         struct ieee80211_hw *hw = arg;
 581         struct sk_buff *skb;
 582         struct ieee80211_tx_info *info;
 583
 584         hwsim_check_magic(vif);
 585
 586         if (vif->type != NL80211_IFTYPE_AP &&
 587             vif->type != NL80211_IFTYPE_MESH_POINT)
 588                 return;
 589
 590         skb = ieee80211_beacon_get(hw, vif);
 591         if (skb == NULL)
 592                 return;
 593         info = IEEE80211_SKB_CB(skb);
 594
 595         mac80211_hwsim_monitor_rx(hw, skb);
 596         mac80211_hwsim_tx_frame(hw, skb);
 597         dev_kfree_skb(skb);
 598 }
 599
 600
 601 static void mac80211_hwsim_beacon(unsigned long arg)
 602 {
 603         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
 604         struct mac80211_hwsim_data *data = hw->priv;
 605
 606         if (!data->started)
 607                 return;
 608
 609         ieee80211_iterate_active_interfaces_atomic(
 610                 hw, mac80211_hwsim_beacon_tx, hw);
 611
 612         data->beacon_timer.expires = jiffies + data->beacon_int;
 613         add_timer(&data->beacon_timer);
 614 }
 615
 616
 617 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 618 {
 619         struct mac80211_hwsim_data *data = hw->priv;
 620         struct ieee80211_conf *conf = &hw->conf;
 621         static const char *chantypes[4] = {
 622                 [NL80211_CHAN_NO_HT] = "noht",
 623                 [NL80211_CHAN_HT20] = "ht20",
 624                 [NL80211_CHAN_HT40MINUS] = "ht40-",
 625                 [NL80211_CHAN_HT40PLUS] = "ht40+",
 626         };
 627         static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 628                 [IEEE80211_SMPS_AUTOMATIC] = "auto",
 629                 [IEEE80211_SMPS_OFF] = "off",
 630                 [IEEE80211_SMPS_STATIC] = "static",
 631                 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
 632         };
 633
 634         printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
 635                wiphy_name(hw->wiphy), __func__,
 636                conf->channel->center_freq,
 637                chantypes[conf->channel_type],
 638                !!(conf->flags & IEEE80211_CONF_IDLE),
 639                !!(conf->flags & IEEE80211_CONF_PS),
 640                smps_modes[conf->smps_mode]);
 641
 642         data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
 643
 644         data->channel = conf->channel;
 645         if (!data->started || !data->beacon_int)
 646                 del_timer(&data->beacon_timer);
 647         else
 648                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
 649
 650         return 0;
 651 }
 652
 653
 654 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 655                                             unsigned int changed_flags,
 656                                             unsigned int *total_flags,u64 multicast)
 657 {
 658         struct mac80211_hwsim_data *data = hw->priv;
 659
 660         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 661
 662         data->rx_filter = 0;
 663         if (*total_flags & FIF_PROMISC_IN_BSS)
 664                 data->rx_filter |= FIF_PROMISC_IN_BSS;
 665         if (*total_flags & FIF_ALLMULTI)
 666                 data->rx_filter |= FIF_ALLMULTI;
 667
 668         *total_flags = data->rx_filter;
 669 }
 670
 671 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 672                                             struct ieee80211_vif *vif,
 673                                             struct ieee80211_bss_conf *info,
 674                                             u32 changed)
 675 {
 676         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 677         struct mac80211_hwsim_data *data = hw->priv;
 678
 679         hwsim_check_magic(vif);
 680
 681         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
 682                wiphy_name(hw->wiphy), __func__, changed);
 683
 684         if (changed & BSS_CHANGED_BSSID) {
 685                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
 686                        wiphy_name(hw->wiphy), __func__,
 687                        info->bssid);
 688                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
 689         }
 690
 691         if (changed & BSS_CHANGED_ASSOC) {
 692                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
 693                        wiphy_name(hw->wiphy), info->assoc, info->aid);
 694                 vp->assoc = info->assoc;
 695                 vp->aid = info->aid;
 696         }
 697
 698         if (changed & BSS_CHANGED_BEACON_INT) {
 699                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
 700                        wiphy_name(hw->wiphy), info->beacon_int);
 701                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
 702                 if (WARN_ON(!data->beacon_int))
 703                         data->beacon_int = 1;
 704                 if (data->started)
 705                         mod_timer(&data->beacon_timer,
 706                                   jiffies + data->beacon_int);
 707         }
 708
 709         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 710                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
 711                        wiphy_name(hw->wiphy), info->use_cts_prot);
 712         }
 713
 714         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 715                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
 716                        wiphy_name(hw->wiphy), info->use_short_preamble);
 717         }
 718
 719         if (changed & BSS_CHANGED_ERP_SLOT) {
 720                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
 721                        wiphy_name(hw->wiphy), info->use_short_slot);
 722         }
 723
 724         if (changed & BSS_CHANGED_HT) {
 725                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 726                        wiphy_name(hw->wiphy),
 727                        info->ht_operation_mode);
 728         }
 729
 730         if (changed & BSS_CHANGED_BASIC_RATES) {
 731                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
 732                        wiphy_name(hw->wiphy),
 733                        (unsigned long long) info->basic_rates);
 734         }
 735 }
 736
 737 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
 738                                       struct ieee80211_vif *vif,
 739                                       enum sta_notify_cmd cmd,
 740                                       struct ieee80211_sta *sta)
 741 {
 742         hwsim_check_magic(vif);
 743         switch (cmd) {
 744         case STA_NOTIFY_ADD:
 745                 hwsim_set_sta_magic(sta);
 746                 break;
 747         case STA_NOTIFY_REMOVE:
 748                 hwsim_clear_sta_magic(sta);
 749                 break;
 750         case STA_NOTIFY_SLEEP:
 751         case STA_NOTIFY_AWAKE:
 752                 /* TODO: make good use of these flags */
 753                 break;
 754         }
 755 }
 756
 757 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
 758                                   struct ieee80211_sta *sta,
 759                                   bool set)
 760 {
 761         hwsim_check_sta_magic(sta);
 762         return 0;
 763 }
 764
 765 static int mac80211_hwsim_conf_tx(
 766         struct ieee80211_hw *hw, u16 queue,
 767         const struct ieee80211_tx_queue_params *params)
 768 {
 769         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
 770                "aifs=%d)\n",
 771                wiphy_name(hw->wiphy), __func__, queue,
 772                params->txop, params->cw_min, params->cw_max, params->aifs);
 773         return 0;
 774 }
 775
 776 #ifdef CONFIG_NL80211_TESTMODE
 777 /*
 778  * This section contains example code for using netlink
 779  * attributes with the testmode command in nl80211.
 780  */
 781
 782 /* These enums need to be kept in sync with userspace */
 783 enum hwsim_testmode_attr {
 784         __HWSIM_TM_ATTR_INVALID = 0,
 785         HWSIM_TM_ATTR_CMD       = 1,
 786         HWSIM_TM_ATTR_PS        = 2,
 787
 788         /* keep last */
 789         __HWSIM_TM_ATTR_AFTER_LAST,
 790         HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
 791 };
 792
 793 enum hwsim_testmode_cmd {
 794         HWSIM_TM_CMD_SET_PS             = 0,
 795         HWSIM_TM_CMD_GET_PS             = 1,
 796 };
 797
 798 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
 799         [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
 800         [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
 801 };
 802
 803 static int hwsim_fops_ps_write(void *dat, u64 val);
 804
 805 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
 806                                        void *data, int len)
 807 {
 808         struct mac80211_hwsim_data *hwsim = hw->priv;
 809         struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
 810         struct sk_buff *skb;
 811         int err, ps;
 812
 813         err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
 814                         hwsim_testmode_policy);
 815         if (err)
 816                 return err;
 817
 818         if (!tb[HWSIM_TM_ATTR_CMD])
 819                 return -EINVAL;
 820
 821         switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
 822         case HWSIM_TM_CMD_SET_PS:
 823                 if (!tb[HWSIM_TM_ATTR_PS])
 824                         return -EINVAL;
 825                 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
 826                 return hwsim_fops_ps_write(hwsim, ps);
 827         case HWSIM_TM_CMD_GET_PS:
 828                 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
 829                                                 nla_total_size(sizeof(u32)));
 830                 if (!skb)
 831                         return -ENOMEM;
 832                 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
 833                 return cfg80211_testmode_reply(skb);
 834         default:
 835                 return -EOPNOTSUPP;
 836         }
 837
 838  nla_put_failure:
 839         kfree_skb(skb);
 840         return -ENOBUFS;
 841 }
 842 #endif
 843
 844 static const struct ieee80211_ops mac80211_hwsim_ops =
 845 {
 846         .tx = mac80211_hwsim_tx,
 847         .start = mac80211_hwsim_start,
 848         .stop = mac80211_hwsim_stop,
 849         .add_interface = mac80211_hwsim_add_interface,
 850         .remove_interface = mac80211_hwsim_remove_interface,
 851         .config = mac80211_hwsim_config,
 852         .configure_filter = mac80211_hwsim_configure_filter,
 853         .bss_info_changed = mac80211_hwsim_bss_info_changed,
 854         .sta_notify = mac80211_hwsim_sta_notify,
 855         .set_tim = mac80211_hwsim_set_tim,
 856         .conf_tx = mac80211_hwsim_conf_tx,
 857         CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
 858 };
 859
 860
 861 static void mac80211_hwsim_free(void)
 862 {
 863         struct list_head tmplist, *i, *tmp;
 864         struct mac80211_hwsim_data *data, *tmpdata;
 865
 866         INIT_LIST_HEAD(&tmplist);
 867
 868         spin_lock_bh(&hwsim_radio_lock);
 869         list_for_each_safe(i, tmp, &hwsim_radios)
 870                 list_move(i, &tmplist);
 871         spin_unlock_bh(&hwsim_radio_lock);
 872
 873         list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
 874                 debugfs_remove(data->debugfs_group);
 875                 debugfs_remove(data->debugfs_ps);
 876                 debugfs_remove(data->debugfs);
 877                 ieee80211_unregister_hw(data->hw);
 878                 device_unregister(data->dev);
 879                 ieee80211_free_hw(data->hw);
 880         }
 881         class_destroy(hwsim_class);
 882 }
 883
 884
 885 static struct device_driver mac80211_hwsim_driver = {
 886         .name = "mac80211_hwsim"
 887 };
 888
 889 static const struct net_device_ops hwsim_netdev_ops = {
 890         .ndo_start_xmit         = hwsim_mon_xmit,
 891         .ndo_change_mtu         = eth_change_mtu,
 892         .ndo_set_mac_address    = eth_mac_addr,
 893         .ndo_validate_addr      = eth_validate_addr,
 894 };
 895
 896 static void hwsim_mon_setup(struct net_device *dev)
 897 {
 898         dev->netdev_ops = &hwsim_netdev_ops;
 899         dev->destructor = free_netdev;
 900         ether_setup(dev);
 901         dev->tx_queue_len = 0;
 902         dev->type = ARPHRD_IEEE80211_RADIOTAP;
 903         memset(dev->dev_addr, 0, ETH_ALEN);
 904         dev->dev_addr[0] = 0x12;
 905 }
 906
 907
 908 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 909 {
 910         struct mac80211_hwsim_data *data = dat;
 911         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 912         struct sk_buff *skb;
 913         struct ieee80211_pspoll *pspoll;
 914
 915         if (!vp->assoc)
 916                 return;
 917
 918         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
 919                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
 920
 921         skb = dev_alloc_skb(sizeof(*pspoll));
 922         if (!skb)
 923                 return;
 924         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
 925         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 926                                             IEEE80211_STYPE_PSPOLL |
 927                                             IEEE80211_FCTL_PM);
 928         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
 929         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
 930         memcpy(pspoll->ta, mac, ETH_ALEN);
 931         if (!mac80211_hwsim_tx_frame(data->hw, skb))
 932                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
 933         dev_kfree_skb(skb);
 934 }
 935
 936
 937 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 938                                 struct ieee80211_vif *vif, int ps)
 939 {
 940         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 941         struct sk_buff *skb;
 942         struct ieee80211_hdr *hdr;
 943
 944         if (!vp->assoc)
 945                 return;
 946
 947         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
 948                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
 949
 950         skb = dev_alloc_skb(sizeof(*hdr));
 951         if (!skb)
 952                 return;
 953         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
 954         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 955                                          IEEE80211_STYPE_NULLFUNC |
 956                                          (ps ? IEEE80211_FCTL_PM : 0));
 957         hdr->duration_id = cpu_to_le16(0);
 958         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
 959         memcpy(hdr->addr2, mac, ETH_ALEN);
 960         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
 961         if (!mac80211_hwsim_tx_frame(data->hw, skb))
 962                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
 963         dev_kfree_skb(skb);
 964 }
 965
 966
 967 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
 968                                    struct ieee80211_vif *vif)
 969 {
 970         struct mac80211_hwsim_data *data = dat;
 971         hwsim_send_nullfunc(data, mac, vif, 1);
 972 }
 973
 974
 975 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
 976                                       struct ieee80211_vif *vif)
 977 {
 978         struct mac80211_hwsim_data *data = dat;
 979         hwsim_send_nullfunc(data, mac, vif, 0);
 980 }
 981
 982
 983 static int hwsim_fops_ps_read(void *dat, u64 *val)
 984 {
 985         struct mac80211_hwsim_data *data = dat;
 986         *val = data->ps;
 987         return 0;
 988 }
 989
 990 static int hwsim_fops_ps_write(void *dat, u64 val)
 991 {
 992         struct mac80211_hwsim_data *data = dat;
 993         enum ps_mode old_ps;
 994
 995         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
 996             val != PS_MANUAL_POLL)
 997                 return -EINVAL;
 998
 999         old_ps = data->ps;
1000         data->ps = val;
1001
1002         if (val == PS_MANUAL_POLL) {
1003                 ieee80211_iterate_active_interfaces(data->hw,
1004                                                     hwsim_send_ps_poll, data);
1005                 data->ps_poll_pending = true;
1006         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1007                 ieee80211_iterate_active_interfaces(data->hw,
1008                                                     hwsim_send_nullfunc_ps,
1009                                                     data);
1010         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1011                 ieee80211_iterate_active_interfaces(data->hw,
1012                                                     hwsim_send_nullfunc_no_ps,
1013                                                     data);
1014         }
1015
1016         return 0;
1017 }
1018
1019 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1020                         "%llu\n");
1021
1022
1023 static int hwsim_fops_group_read(void *dat, u64 *val)
1024 {
1025         struct mac80211_hwsim_data *data = dat;
1026         *val = data->group;
1027         return 0;
1028 }
1029
1030 static int hwsim_fops_group_write(void *dat, u64 val)
1031 {
1032         struct mac80211_hwsim_data *data = dat;
1033         data->group = val;
1034         return 0;
1035 }
1036
1037 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1038                         hwsim_fops_group_read, hwsim_fops_group_write,
1039                         "%llx\n");
1040
1041 static int __init init_mac80211_hwsim(void)
1042 {
1043         int i, err = 0;
1044         u8 addr[ETH_ALEN];
1045         struct mac80211_hwsim_data *data;
1046         struct ieee80211_hw *hw;
1047         enum ieee80211_band band;
1048
1049         if (radios < 1 || radios > 100)
1050                 return -EINVAL;
1051
1052         spin_lock_init(&hwsim_radio_lock);
1053         INIT_LIST_HEAD(&hwsim_radios);
1054
1055         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1056         if (IS_ERR(hwsim_class))
1057                 return PTR_ERR(hwsim_class);
1058
1059         memset(addr, 0, ETH_ALEN);
1060         addr[0] = 0x02;
1061
1062         for (i = 0; i < radios; i++) {
1063                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1064                        i);
1065                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1066                 if (!hw) {
1067                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1068                                "failed\n");
1069                         err = -ENOMEM;
1070                         goto failed;
1071                 }
1072                 data = hw->priv;
1073                 data->hw = hw;
1074
1075                 data->dev = device_create(hwsim_class, NULL, 0, hw,
1076                                           "hwsim%d", i);
1077                 if (IS_ERR(data->dev)) {
1078                         printk(KERN_DEBUG
1079                                "mac80211_hwsim: device_create "
1080                                "failed (%ld)\n", PTR_ERR(data->dev));
1081                         err = -ENOMEM;
1082                         goto failed_drvdata;
1083                 }
1084                 data->dev->driver = &mac80211_hwsim_driver;
1085
1086                 SET_IEEE80211_DEV(hw, data->dev);
1087                 addr[3] = i >> 8;
1088                 addr[4] = i;
1089                 SET_IEEE80211_PERM_ADDR(hw, addr);
1090
1091                 hw->channel_change_time = 1;
1092                 hw->queues = 4;
1093                 hw->wiphy->interface_modes =
1094                         BIT(NL80211_IFTYPE_STATION) |
1095                         BIT(NL80211_IFTYPE_AP) |
1096                         BIT(NL80211_IFTYPE_MESH_POINT);
1097
1098                 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1099                             IEEE80211_HW_SIGNAL_DBM |
1100                             IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1101                             IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1102
1103                 /* ask mac80211 to reserve space for magic */
1104                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1105                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1106
1107                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1108                         sizeof(hwsim_channels_2ghz));
1109                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1110                         sizeof(hwsim_channels_5ghz));
1111                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1112
1113                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1114                         struct ieee80211_supported_band *sband = &data->bands[band];
1115                         switch (band) {
1116                         case IEEE80211_BAND_2GHZ:
1117                                 sband->channels = data->channels_2ghz;
1118                                 sband->n_channels =
1119                                         ARRAY_SIZE(hwsim_channels_2ghz);
1120                                 sband->bitrates = data->rates;
1121                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1122                                 break;
1123                         case IEEE80211_BAND_5GHZ:
1124                                 sband->channels = data->channels_5ghz;
1125                                 sband->n_channels =
1126                                         ARRAY_SIZE(hwsim_channels_5ghz);
1127                                 sband->bitrates = data->rates + 4;
1128                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1129                                 break;
1130                         default:
1131                                 break;
1132                         }
1133
1134                         sband->ht_cap.ht_supported = true;
1135                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1136                                 IEEE80211_HT_CAP_GRN_FLD |
1137                                 IEEE80211_HT_CAP_SGI_40 |
1138                                 IEEE80211_HT_CAP_DSSSCCK40;
1139                         sband->ht_cap.ampdu_factor = 0x3;
1140                         sband->ht_cap.ampdu_density = 0x6;
1141                         memset(&sband->ht_cap.mcs, 0,
1142                                sizeof(sband->ht_cap.mcs));
1143                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1144                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1145                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1146
1147                         hw->wiphy->bands[band] = sband;
1148                 }
1149                 /* By default all radios are belonging to the first group */
1150                 data->group = 1;
1151
1152                 /* Work to be done prior to ieee80211_register_hw() */
1153                 switch (regtest) {
1154                 case HWSIM_REGTEST_DISABLED:
1155                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1156                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1157                 case HWSIM_REGTEST_DIFF_COUNTRY:
1158                         /*
1159                          * Nothing to be done for driver regulatory domain
1160                          * hints prior to ieee80211_register_hw()
1161                          */
1162                         break;
1163                 case HWSIM_REGTEST_WORLD_ROAM:
1164                         if (i == 0) {
1165                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1166                                 wiphy_apply_custom_regulatory(hw->wiphy,
1167                                         &hwsim_world_regdom_custom_01);
1168                         }
1169                         break;
1170                 case HWSIM_REGTEST_CUSTOM_WORLD:
1171                         hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1172                         wiphy_apply_custom_regulatory(hw->wiphy,
1173                                 &hwsim_world_regdom_custom_01);
1174                         break;
1175                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1176                         if (i == 0) {
1177                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1178                                 wiphy_apply_custom_regulatory(hw->wiphy,
1179                                         &hwsim_world_regdom_custom_01);
1180                         } else if (i == 1) {
1181                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1182                                 wiphy_apply_custom_regulatory(hw->wiphy,
1183                                         &hwsim_world_regdom_custom_02);
1184                         }
1185                         break;
1186                 case HWSIM_REGTEST_STRICT_ALL:
1187                         hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1188                         break;
1189                 case HWSIM_REGTEST_STRICT_FOLLOW:
1190                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1191                         if (i == 0)
1192                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1193                         break;
1194                 case HWSIM_REGTEST_ALL:
1195                         if (i == 0) {
1196                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1197                                 wiphy_apply_custom_regulatory(hw->wiphy,
1198                                         &hwsim_world_regdom_custom_01);
1199                         } else if (i == 1) {
1200                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1201                                 wiphy_apply_custom_regulatory(hw->wiphy,
1202                                         &hwsim_world_regdom_custom_02);
1203                         } else if (i == 4)
1204                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1205                         break;
1206                 default:
1207                         break;
1208                 }
1209
1210                 /* give the regulatory workqueue a chance to run */
1211                 if (regtest)
1212                         schedule_timeout_interruptible(1);
1213                 err = ieee80211_register_hw(hw);
1214                 if (err < 0) {
1215                         printk(KERN_DEBUG "mac80211_hwsim: "
1216                                "ieee80211_register_hw failed (%d)\n", err);
1217                         goto failed_hw;
1218                 }
1219
1220                 /* Work to be done after to ieee80211_register_hw() */
1221                 switch (regtest) {
1222                 case HWSIM_REGTEST_WORLD_ROAM:
1223                 case HWSIM_REGTEST_DISABLED:
1224                         break;
1225                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1226                         if (!i)
1227                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1228                         break;
1229                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1230                 case HWSIM_REGTEST_STRICT_ALL:
1231                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1232                         break;
1233                 case HWSIM_REGTEST_DIFF_COUNTRY:
1234                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1235                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1236                         break;
1237                 case HWSIM_REGTEST_CUSTOM_WORLD:
1238                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1239                         /*
1240                          * Nothing to be done for custom world regulatory
1241                          * domains after to ieee80211_register_hw
1242                          */
1243                         break;
1244                 case HWSIM_REGTEST_STRICT_FOLLOW:
1245                         if (i == 0)
1246                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1247                         break;
1248                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1249                         if (i == 0)
1250                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1251                         else if (i == 1)
1252                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1253                         break;
1254                 case HWSIM_REGTEST_ALL:
1255                         if (i == 2)
1256                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1257                         else if (i == 3)
1258                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1259                         else if (i == 4)
1260                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1261                         break;
1262                 default:
1263                         break;
1264                 }
1265
1266                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1267                        wiphy_name(hw->wiphy),
1268                        hw->wiphy->perm_addr);
1269
1270                 data->debugfs = debugfs_create_dir("hwsim",
1271                                                    hw->wiphy->debugfsdir);
1272                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1273                                                        data->debugfs, data,
1274                                                        &hwsim_fops_ps);
1275                 data->debugfs_group = debugfs_create_file("group", 0666,
1276                                                         data->debugfs, data,
1277                                                         &hwsim_fops_group);
1278
1279                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1280                             (unsigned long) hw);
1281
1282                 list_add_tail(&data->list, &hwsim_radios);
1283         }
1284
1285         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1286         if (hwsim_mon == NULL)
1287                 goto failed;
1288
1289         rtnl_lock();
1290
1291         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1292         if (err < 0)
1293                 goto failed_mon;
1294
1295
1296         err = register_netdevice(hwsim_mon);
1297         if (err < 0)
1298                 goto failed_mon;
1299
1300         rtnl_unlock();
1301
1302         return 0;
1303
1304 failed_mon:
1305         rtnl_unlock();
1306         free_netdev(hwsim_mon);
1307         mac80211_hwsim_free();
1308         return err;
1309
1310 failed_hw:
1311         device_unregister(data->dev);
1312 failed_drvdata:
1313         ieee80211_free_hw(hw);
1314 failed:
1315         mac80211_hwsim_free();
1316         return err;
1317 }
1318
1319
1320 static void __exit exit_mac80211_hwsim(void)
1321 {
1322         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1323
1324         mac80211_hwsim_free();
1325         unregister_netdev(hwsim_mon);
1326 }
1327
1328
1329 module_init(init_mac80211_hwsim);
1330 module_exit(exit_mac80211_hwsim);