git.oblomov.eu Git - linux-2.6/blob - 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/mac80211.h>
  19 #include <net/ieee80211_radiotap.h>
  20 #include <linux/if_arp.h>
  21 #include <linux/rtnetlink.h>
  22 #include <linux/etherdevice.h>
  23 #include <linux/debugfs.h>
  24
  25 MODULE_AUTHOR("Jouni Malinen");
  26 MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
  27 MODULE_LICENSE("GPL");
  28
  29 static int radios = 2;
  30 module_param(radios, int, 0444);
  31 MODULE_PARM_DESC(radios, "Number of simulated radios");
  32
  33 /**
  34  * enum hwsim_regtest - the type of regulatory tests we offer
  35  *
  36  * These are the different values you can use for the regtest
  37  * module parameter. This is useful to help test world roaming
  38  * and the driver regulatory_hint() call and combinations of these.
  39  * If you want to do specific alpha2 regulatory domain tests simply
  40  * use the userspace regulatory request as that will be respected as
  41  * well without the need of this module parameter. This is designed
  42  * only for testing the driver regulatory request, world roaming
  43  * and all possible combinations.
  44  *
  45  * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
  46  *      this is the default value.
  47  * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
  48  *      hint, only one driver regulatory hint will be sent as such the
  49  *      secondary radios are expected to follow.
  50  * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
  51  *      request with all radios reporting the same regulatory domain.
  52  * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
  53  *      different regulatory domains requests. Expected behaviour is for
  54  *      an intersection to occur but each device will still use their
  55  *      respective regulatory requested domains. Subsequent radios will
  56  *      use the resulting intersection.
  57  * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We acomplish
  58  *      this by using a custom beacon-capable regulatory domain for the first
  59  *      radio. All other device world roam.
  60  * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
  61  *      domain requests. All radios will adhere to this custom world regulatory
  62  *      domain.
  63  * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
  64  *      domain requests. The first radio will adhere to the first custom world
  65  *      regulatory domain, the second one to the second custom world regulatory
  66  *      domain. All other devices will world roam.
  67  * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
  68  *      settings, only the first radio will send a regulatory domain request
  69  *      and use strict settings. The rest of the radios are expected to follow.
  70  * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
  71  *      settings. All radios will adhere to this.
  72  * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
  73  *      domain settings, combined with secondary driver regulatory domain
  74  *      settings. The first radio will get a strict regulatory domain setting
  75  *      using the first driver regulatory request and the second radio will use
  76  *      non-strict settings using the second driver regulatory request. All
  77  *      other devices should follow the intersection created between the
  78  *      first two.
  79  * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
  80  *      at least 6 radios for a complete test. We will test in this order:
  81  *      1 - driver custom world regulatory domain
  82  *      2 - second custom world regulatory domain
  83  *      3 - first driver regulatory domain request
  84  *      4 - second driver regulatory domain request
  85  *      5 - strict regulatory domain settings using the third driver regulatory
  86  *          domain request
  87  *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
  88  *                 regulatory requests.
  89  */
  90 enum hwsim_regtest {
  91         HWSIM_REGTEST_DISABLED = 0,
  92         HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
  93         HWSIM_REGTEST_DRIVER_REG_ALL = 2,
  94         HWSIM_REGTEST_DIFF_COUNTRY = 3,
  95         HWSIM_REGTEST_WORLD_ROAM = 4,
  96         HWSIM_REGTEST_CUSTOM_WORLD = 5,
  97         HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
  98         HWSIM_REGTEST_STRICT_FOLLOW = 7,
  99         HWSIM_REGTEST_STRICT_ALL = 8,
 100         HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
 101         HWSIM_REGTEST_ALL = 10,
 102 };
 103
 104 /* Set to one of the HWSIM_REGTEST_* values above */
 105 static int regtest = HWSIM_REGTEST_DISABLED;
 106 module_param(regtest, int, 0444);
 107 MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
 108
 109 static const char *hwsim_alpha2s[] = {
 110         "FI",
 111         "AL",
 112         "US",
 113         "DE",
 114         "JP",
 115         "AL",
 116 };
 117
 118 static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
 119         .n_reg_rules = 4,
 120         .alpha2 =  "99",
 121         .reg_rules = {
 122                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 123                 REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
 124                 REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
 125                 REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
 126         }
 127 };
 128
 129 static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
 130         .n_reg_rules = 2,
 131         .alpha2 =  "99",
 132         .reg_rules = {
 133                 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 134                 REG_RULE(5725-10, 5850+10, 40, 0, 30,
 135                         NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
 136         }
 137 };
 138
 139 struct hwsim_vif_priv {
 140         u32 magic;
 141         u8 bssid[ETH_ALEN];
 142         bool assoc;
 143         u16 aid;
 144 };
 145
 146 #define HWSIM_VIF_MAGIC 0x69537748
 147
 148 static inline void hwsim_check_magic(struct ieee80211_vif *vif)
 149 {
 150         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 151         WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
 152 }
 153
 154 static inline void hwsim_set_magic(struct ieee80211_vif *vif)
 155 {
 156         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 157         vp->magic = HWSIM_VIF_MAGIC;
 158 }
 159
 160 static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
 161 {
 162         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 163         vp->magic = 0;
 164 }
 165
 166 struct hwsim_sta_priv {
 167         u32 magic;
 168 };
 169
 170 #define HWSIM_STA_MAGIC 0x6d537748
 171
 172 static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
 173 {
 174         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 175         WARN_ON(sp->magic != HWSIM_STA_MAGIC);
 176 }
 177
 178 static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
 179 {
 180         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 181         sp->magic = HWSIM_STA_MAGIC;
 182 }
 183
 184 static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
 185 {
 186         struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 187         sp->magic = 0;
 188 }
 189
 190 static struct class *hwsim_class;
 191
 192 static struct net_device *hwsim_mon; /* global monitor netdev */
 193
 194 #define CHAN2G(_freq)  { \
 195         .band = IEEE80211_BAND_2GHZ, \
 196         .center_freq = (_freq), \
 197         .hw_value = (_freq), \
 198         .max_power = 20, \
 199 }
 200
 201 #define CHAN5G(_freq) { \
 202         .band = IEEE80211_BAND_5GHZ, \
 203         .center_freq = (_freq), \
 204         .hw_value = (_freq), \
 205         .max_power = 20, \
 206 }
 207
 208 static const struct ieee80211_channel hwsim_channels_2ghz[] = {
 209         CHAN2G(2412), /* Channel 1 */
 210         CHAN2G(2417), /* Channel 2 */
 211         CHAN2G(2422), /* Channel 3 */
 212         CHAN2G(2427), /* Channel 4 */
 213         CHAN2G(2432), /* Channel 5 */
 214         CHAN2G(2437), /* Channel 6 */
 215         CHAN2G(2442), /* Channel 7 */
 216         CHAN2G(2447), /* Channel 8 */
 217         CHAN2G(2452), /* Channel 9 */
 218         CHAN2G(2457), /* Channel 10 */
 219         CHAN2G(2462), /* Channel 11 */
 220         CHAN2G(2467), /* Channel 12 */
 221         CHAN2G(2472), /* Channel 13 */
 222         CHAN2G(2484), /* Channel 14 */
 223 };
 224
 225 static const struct ieee80211_channel hwsim_channels_5ghz[] = {
 226         CHAN5G(5180), /* Channel 36 */
 227         CHAN5G(5200), /* Channel 40 */
 228         CHAN5G(5220), /* Channel 44 */
 229         CHAN5G(5240), /* Channel 48 */
 230
 231         CHAN5G(5260), /* Channel 52 */
 232         CHAN5G(5280), /* Channel 56 */
 233         CHAN5G(5300), /* Channel 60 */
 234         CHAN5G(5320), /* Channel 64 */
 235
 236         CHAN5G(5500), /* Channel 100 */
 237         CHAN5G(5520), /* Channel 104 */
 238         CHAN5G(5540), /* Channel 108 */
 239         CHAN5G(5560), /* Channel 112 */
 240         CHAN5G(5580), /* Channel 116 */
 241         CHAN5G(5600), /* Channel 120 */
 242         CHAN5G(5620), /* Channel 124 */
 243         CHAN5G(5640), /* Channel 128 */
 244         CHAN5G(5660), /* Channel 132 */
 245         CHAN5G(5680), /* Channel 136 */
 246         CHAN5G(5700), /* Channel 140 */
 247
 248         CHAN5G(5745), /* Channel 149 */
 249         CHAN5G(5765), /* Channel 153 */
 250         CHAN5G(5785), /* Channel 157 */
 251         CHAN5G(5805), /* Channel 161 */
 252         CHAN5G(5825), /* Channel 165 */
 253 };
 254
 255 static const struct ieee80211_rate hwsim_rates[] = {
 256         { .bitrate = 10 },
 257         { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 258         { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 259         { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 260         { .bitrate = 60 },
 261         { .bitrate = 90 },
 262         { .bitrate = 120 },
 263         { .bitrate = 180 },
 264         { .bitrate = 240 },
 265         { .bitrate = 360 },
 266         { .bitrate = 480 },
 267         { .bitrate = 540 }
 268 };
 269
 270 static spinlock_t hwsim_radio_lock;
 271 static struct list_head hwsim_radios;
 272
 273 struct mac80211_hwsim_data {
 274         struct list_head list;
 275         struct ieee80211_hw *hw;
 276         struct device *dev;
 277         struct ieee80211_supported_band bands[2];
 278         struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
 279         struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
 280         struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
 281
 282         struct ieee80211_channel *channel;
 283         int radio_enabled;
 284         unsigned long beacon_int; /* in jiffies unit */
 285         unsigned int rx_filter;
 286         int started;
 287         struct timer_list beacon_timer;
 288         enum ps_mode {
 289                 PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
 290         } ps;
 291         bool ps_poll_pending;
 292         struct dentry *debugfs;
 293         struct dentry *debugfs_ps;
 294
 295         /*
 296          * Only radios in the same group can communicate together (the
 297          * channel has to match too). Each bit represents a group. A
 298          * radio can be in more then one group.
 299          */
 300         u64 group;
 301         struct dentry *debugfs_group;
 302 };
 303
 304
 305 struct hwsim_radiotap_hdr {
 306         struct ieee80211_radiotap_header hdr;
 307         u8 rt_flags;
 308         u8 rt_rate;
 309         __le16 rt_channel;
 310         __le16 rt_chbitmask;
 311 } __attribute__ ((packed));
 312
 313
 314 static int hwsim_mon_xmit(struct sk_buff *skb, struct net_device *dev)
 315 {
 316         /* TODO: allow packet injection */
 317         dev_kfree_skb(skb);
 318         return 0;
 319 }
 320
 321
 322 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
 323                                       struct sk_buff *tx_skb)
 324 {
 325         struct mac80211_hwsim_data *data = hw->priv;
 326         struct sk_buff *skb;
 327         struct hwsim_radiotap_hdr *hdr;
 328         u16 flags;
 329         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
 330         struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
 331
 332         if (!netif_running(hwsim_mon))
 333                 return;
 334
 335         skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
 336         if (skb == NULL)
 337                 return;
 338
 339         hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
 340         hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
 341         hdr->hdr.it_pad = 0;
 342         hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
 343         hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
 344                                           (1 << IEEE80211_RADIOTAP_RATE) |
 345                                           (1 << IEEE80211_RADIOTAP_CHANNEL));
 346         hdr->rt_flags = 0;
 347         hdr->rt_rate = txrate->bitrate / 5;
 348         hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
 349         flags = IEEE80211_CHAN_2GHZ;
 350         if (txrate->flags & IEEE80211_RATE_ERP_G)
 351                 flags |= IEEE80211_CHAN_OFDM;
 352         else
 353                 flags |= IEEE80211_CHAN_CCK;
 354         hdr->rt_chbitmask = cpu_to_le16(flags);
 355
 356         skb->dev = hwsim_mon;
 357         skb_set_mac_header(skb, 0);
 358         skb->ip_summed = CHECKSUM_UNNECESSARY;
 359         skb->pkt_type = PACKET_OTHERHOST;
 360         skb->protocol = htons(ETH_P_802_2);
 361         memset(skb->cb, 0, sizeof(skb->cb));
 362         netif_rx(skb);
 363 }
 364
 365
 366 static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
 367                            struct sk_buff *skb)
 368 {
 369         switch (data->ps) {
 370         case PS_DISABLED:
 371                 return true;
 372         case PS_ENABLED:
 373                 return false;
 374         case PS_AUTO_POLL:
 375                 /* TODO: accept (some) Beacons by default and other frames only
 376                  * if pending PS-Poll has been sent */
 377                 return true;
 378         case PS_MANUAL_POLL:
 379                 /* Allow unicast frames to own address if there is a pending
 380                  * PS-Poll */
 381                 if (data->ps_poll_pending &&
 382                     memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
 383                            ETH_ALEN) == 0) {
 384                         data->ps_poll_pending = false;
 385                         return true;
 386                 }
 387                 return false;
 388         }
 389
 390         return true;
 391 }
 392
 393
 394 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 395                                     struct sk_buff *skb)
 396 {
 397         struct mac80211_hwsim_data *data = hw->priv, *data2;
 398         bool ack = false;
 399         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 400         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 401         struct ieee80211_rx_status rx_status;
 402
 403         memset(&rx_status, 0, sizeof(rx_status));
 404         /* TODO: set mactime */
 405         rx_status.freq = data->channel->center_freq;
 406         rx_status.band = data->channel->band;
 407         rx_status.rate_idx = info->control.rates[0].idx;
 408         /* TODO: simulate signal strength (and optional packet drop) */
 409
 410         if (data->ps != PS_DISABLED)
 411                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
 412
 413         /* Copy skb to all enabled radios that are on the current frequency */
 414         spin_lock(&hwsim_radio_lock);
 415         list_for_each_entry(data2, &hwsim_radios, list) {
 416                 struct sk_buff *nskb;
 417
 418                 if (data == data2)
 419                         continue;
 420
 421                 if (!data2->started || !data2->radio_enabled ||
 422                     !hwsim_ps_rx_ok(data2, skb) ||
 423                     data->channel->center_freq != data2->channel->center_freq ||
 424                     !(data->group & data2->group))
 425                         continue;
 426
 427                 nskb = skb_copy(skb, GFP_ATOMIC);
 428                 if (nskb == NULL)
 429                         continue;
 430
 431                 if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
 432                            ETH_ALEN) == 0)
 433                         ack = true;
 434                 ieee80211_rx_irqsafe(data2->hw, nskb, &rx_status);
 435         }
 436         spin_unlock(&hwsim_radio_lock);
 437
 438         return ack;
 439 }
 440
 441
 442 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 443 {
 444         struct mac80211_hwsim_data *data = hw->priv;
 445         bool ack;
 446         struct ieee80211_tx_info *txi;
 447
 448         mac80211_hwsim_monitor_rx(hw, skb);
 449
 450         if (skb->len < 10) {
 451                 /* Should not happen; just a sanity check for addr1 use */
 452                 dev_kfree_skb(skb);
 453                 return NETDEV_TX_OK;
 454         }
 455
 456         if (!data->radio_enabled) {
 457                 printk(KERN_DEBUG "%s: dropped TX frame since radio "
 458                        "disabled\n", wiphy_name(hw->wiphy));
 459                 dev_kfree_skb(skb);
 460                 return NETDEV_TX_OK;
 461         }
 462
 463         ack = mac80211_hwsim_tx_frame(hw, skb);
 464
 465         txi = IEEE80211_SKB_CB(skb);
 466
 467         if (txi->control.vif)
 468                 hwsim_check_magic(txi->control.vif);
 469         if (txi->control.sta)
 470                 hwsim_check_sta_magic(txi->control.sta);
 471
 472         ieee80211_tx_info_clear_status(txi);
 473         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
 474                 txi->flags |= IEEE80211_TX_STAT_ACK;
 475         ieee80211_tx_status_irqsafe(hw, skb);
 476         return NETDEV_TX_OK;
 477 }
 478
 479
 480 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
 481 {
 482         struct mac80211_hwsim_data *data = hw->priv;
 483         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 484         data->started = 1;
 485         return 0;
 486 }
 487
 488
 489 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
 490 {
 491         struct mac80211_hwsim_data *data = hw->priv;
 492         data->started = 0;
 493         del_timer(&data->beacon_timer);
 494         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 495 }
 496
 497
 498 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
 499                                         struct ieee80211_if_init_conf *conf)
 500 {
 501         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 502                wiphy_name(hw->wiphy), __func__, conf->type,
 503                conf->mac_addr);
 504         hwsim_set_magic(conf->vif);
 505         return 0;
 506 }
 507
 508
 509 static void mac80211_hwsim_remove_interface(
 510         struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
 511 {
 512         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 513                wiphy_name(hw->wiphy), __func__, conf->type,
 514                conf->mac_addr);
 515         hwsim_check_magic(conf->vif);
 516         hwsim_clear_magic(conf->vif);
 517 }
 518
 519
 520 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 521                                      struct ieee80211_vif *vif)
 522 {
 523         struct ieee80211_hw *hw = arg;
 524         struct sk_buff *skb;
 525         struct ieee80211_tx_info *info;
 526
 527         hwsim_check_magic(vif);
 528
 529         if (vif->type != NL80211_IFTYPE_AP &&
 530             vif->type != NL80211_IFTYPE_MESH_POINT)
 531                 return;
 532
 533         skb = ieee80211_beacon_get(hw, vif);
 534         if (skb == NULL)
 535                 return;
 536         info = IEEE80211_SKB_CB(skb);
 537
 538         mac80211_hwsim_monitor_rx(hw, skb);
 539         mac80211_hwsim_tx_frame(hw, skb);
 540         dev_kfree_skb(skb);
 541 }
 542
 543
 544 static void mac80211_hwsim_beacon(unsigned long arg)
 545 {
 546         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
 547         struct mac80211_hwsim_data *data = hw->priv;
 548
 549         if (!data->started || !data->radio_enabled)
 550                 return;
 551
 552         ieee80211_iterate_active_interfaces_atomic(
 553                 hw, mac80211_hwsim_beacon_tx, hw);
 554
 555         data->beacon_timer.expires = jiffies + data->beacon_int;
 556         add_timer(&data->beacon_timer);
 557 }
 558
 559
 560 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 561 {
 562         struct mac80211_hwsim_data *data = hw->priv;
 563         struct ieee80211_conf *conf = &hw->conf;
 564
 565         printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d idle=%d ps=%d)\n",
 566                wiphy_name(hw->wiphy), __func__,
 567                conf->channel->center_freq, conf->radio_enabled,
 568                !!(conf->flags & IEEE80211_CONF_IDLE),
 569                !!(conf->flags & IEEE80211_CONF_PS));
 570
 571         data->channel = conf->channel;
 572         data->radio_enabled = conf->radio_enabled;
 573         if (!data->started || !data->radio_enabled || !data->beacon_int)
 574                 del_timer(&data->beacon_timer);
 575         else
 576                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
 577
 578         return 0;
 579 }
 580
 581
 582 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 583                                             unsigned int changed_flags,
 584                                             unsigned int *total_flags,
 585                                             int mc_count,
 586                                             struct dev_addr_list *mc_list)
 587 {
 588         struct mac80211_hwsim_data *data = hw->priv;
 589
 590         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 591
 592         data->rx_filter = 0;
 593         if (*total_flags & FIF_PROMISC_IN_BSS)
 594                 data->rx_filter |= FIF_PROMISC_IN_BSS;
 595         if (*total_flags & FIF_ALLMULTI)
 596                 data->rx_filter |= FIF_ALLMULTI;
 597
 598         *total_flags = data->rx_filter;
 599 }
 600
 601 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 602                                             struct ieee80211_vif *vif,
 603                                             struct ieee80211_bss_conf *info,
 604                                             u32 changed)
 605 {
 606         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 607         struct mac80211_hwsim_data *data = hw->priv;
 608
 609         hwsim_check_magic(vif);
 610
 611         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
 612                wiphy_name(hw->wiphy), __func__, changed);
 613
 614         if (changed & BSS_CHANGED_BSSID) {
 615                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
 616                        wiphy_name(hw->wiphy), __func__,
 617                        info->bssid);
 618                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
 619         }
 620
 621         if (changed & BSS_CHANGED_ASSOC) {
 622                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
 623                        wiphy_name(hw->wiphy), info->assoc, info->aid);
 624                 vp->assoc = info->assoc;
 625                 vp->aid = info->aid;
 626         }
 627
 628         if (changed & BSS_CHANGED_BEACON_INT) {
 629                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
 630                        wiphy_name(hw->wiphy), info->beacon_int);
 631                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
 632                 if (WARN_ON(!data->beacon_int))
 633                         data->beacon_int = 1;
 634         }
 635
 636         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 637                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
 638                        wiphy_name(hw->wiphy), info->use_cts_prot);
 639         }
 640
 641         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 642                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
 643                        wiphy_name(hw->wiphy), info->use_short_preamble);
 644         }
 645
 646         if (changed & BSS_CHANGED_ERP_SLOT) {
 647                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
 648                        wiphy_name(hw->wiphy), info->use_short_slot);
 649         }
 650
 651         if (changed & BSS_CHANGED_HT) {
 652                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 653                        wiphy_name(hw->wiphy),
 654                        info->ht_operation_mode);
 655         }
 656
 657         if (changed & BSS_CHANGED_BASIC_RATES) {
 658                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
 659                        wiphy_name(hw->wiphy),
 660                        (unsigned long long) info->basic_rates);
 661         }
 662 }
 663
 664 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
 665                                       struct ieee80211_vif *vif,
 666                                       enum sta_notify_cmd cmd,
 667                                       struct ieee80211_sta *sta)
 668 {
 669         hwsim_check_magic(vif);
 670         switch (cmd) {
 671         case STA_NOTIFY_ADD:
 672                 hwsim_set_sta_magic(sta);
 673                 break;
 674         case STA_NOTIFY_REMOVE:
 675                 hwsim_clear_sta_magic(sta);
 676                 break;
 677         case STA_NOTIFY_SLEEP:
 678         case STA_NOTIFY_AWAKE:
 679                 /* TODO: make good use of these flags */
 680                 break;
 681         }
 682 }
 683
 684 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
 685                                   struct ieee80211_sta *sta,
 686                                   bool set)
 687 {
 688         hwsim_check_sta_magic(sta);
 689         return 0;
 690 }
 691
 692 static int mac80211_hwsim_conf_tx(
 693         struct ieee80211_hw *hw, u16 queue,
 694         const struct ieee80211_tx_queue_params *params)
 695 {
 696         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
 697                "aifs=%d)\n",
 698                wiphy_name(hw->wiphy), __func__, queue,
 699                params->txop, params->cw_min, params->cw_max, params->aifs);
 700         return 0;
 701 }
 702
 703 static const struct ieee80211_ops mac80211_hwsim_ops =
 704 {
 705         .tx = mac80211_hwsim_tx,
 706         .start = mac80211_hwsim_start,
 707         .stop = mac80211_hwsim_stop,
 708         .add_interface = mac80211_hwsim_add_interface,
 709         .remove_interface = mac80211_hwsim_remove_interface,
 710         .config = mac80211_hwsim_config,
 711         .configure_filter = mac80211_hwsim_configure_filter,
 712         .bss_info_changed = mac80211_hwsim_bss_info_changed,
 713         .sta_notify = mac80211_hwsim_sta_notify,
 714         .set_tim = mac80211_hwsim_set_tim,
 715         .conf_tx = mac80211_hwsim_conf_tx,
 716 };
 717
 718
 719 static void mac80211_hwsim_free(void)
 720 {
 721         struct list_head tmplist, *i, *tmp;
 722         struct mac80211_hwsim_data *data;
 723
 724         INIT_LIST_HEAD(&tmplist);
 725
 726         spin_lock_bh(&hwsim_radio_lock);
 727         list_for_each_safe(i, tmp, &hwsim_radios)
 728                 list_move(i, &tmplist);
 729         spin_unlock_bh(&hwsim_radio_lock);
 730
 731         list_for_each_entry(data, &tmplist, list) {
 732                 debugfs_remove(data->debugfs_group);
 733                 debugfs_remove(data->debugfs_ps);
 734                 debugfs_remove(data->debugfs);
 735                 ieee80211_unregister_hw(data->hw);
 736                 device_unregister(data->dev);
 737                 ieee80211_free_hw(data->hw);
 738         }
 739         class_destroy(hwsim_class);
 740 }
 741
 742
 743 static struct device_driver mac80211_hwsim_driver = {
 744         .name = "mac80211_hwsim"
 745 };
 746
 747 static const struct net_device_ops hwsim_netdev_ops = {
 748         .ndo_start_xmit         = hwsim_mon_xmit,
 749         .ndo_change_mtu         = eth_change_mtu,
 750         .ndo_set_mac_address    = eth_mac_addr,
 751         .ndo_validate_addr      = eth_validate_addr,
 752 };
 753
 754 static void hwsim_mon_setup(struct net_device *dev)
 755 {
 756         dev->netdev_ops = &hwsim_netdev_ops;
 757         dev->destructor = free_netdev;
 758         ether_setup(dev);
 759         dev->tx_queue_len = 0;
 760         dev->type = ARPHRD_IEEE80211_RADIOTAP;
 761         memset(dev->dev_addr, 0, ETH_ALEN);
 762         dev->dev_addr[0] = 0x12;
 763 }
 764
 765
 766 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 767 {
 768         struct mac80211_hwsim_data *data = dat;
 769         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 770         DECLARE_MAC_BUF(buf);
 771         struct sk_buff *skb;
 772         struct ieee80211_pspoll *pspoll;
 773
 774         if (!vp->assoc)
 775                 return;
 776
 777         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
 778                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
 779
 780         skb = dev_alloc_skb(sizeof(*pspoll));
 781         if (!skb)
 782                 return;
 783         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
 784         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 785                                             IEEE80211_STYPE_PSPOLL |
 786                                             IEEE80211_FCTL_PM);
 787         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
 788         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
 789         memcpy(pspoll->ta, mac, ETH_ALEN);
 790         if (data->radio_enabled &&
 791             !mac80211_hwsim_tx_frame(data->hw, skb))
 792                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
 793         dev_kfree_skb(skb);
 794 }
 795
 796
 797 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 798                                 struct ieee80211_vif *vif, int ps)
 799 {
 800         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 801         DECLARE_MAC_BUF(buf);
 802         struct sk_buff *skb;
 803         struct ieee80211_hdr *hdr;
 804
 805         if (!vp->assoc)
 806                 return;
 807
 808         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
 809                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
 810
 811         skb = dev_alloc_skb(sizeof(*hdr));
 812         if (!skb)
 813                 return;
 814         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
 815         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 816                                          IEEE80211_STYPE_NULLFUNC |
 817                                          (ps ? IEEE80211_FCTL_PM : 0));
 818         hdr->duration_id = cpu_to_le16(0);
 819         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
 820         memcpy(hdr->addr2, mac, ETH_ALEN);
 821         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
 822         if (data->radio_enabled &&
 823             !mac80211_hwsim_tx_frame(data->hw, skb))
 824                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
 825         dev_kfree_skb(skb);
 826 }
 827
 828
 829 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
 830                                    struct ieee80211_vif *vif)
 831 {
 832         struct mac80211_hwsim_data *data = dat;
 833         hwsim_send_nullfunc(data, mac, vif, 1);
 834 }
 835
 836
 837 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
 838                                       struct ieee80211_vif *vif)
 839 {
 840         struct mac80211_hwsim_data *data = dat;
 841         hwsim_send_nullfunc(data, mac, vif, 0);
 842 }
 843
 844
 845 static int hwsim_fops_ps_read(void *dat, u64 *val)
 846 {
 847         struct mac80211_hwsim_data *data = dat;
 848         *val = data->ps;
 849         return 0;
 850 }
 851
 852 static int hwsim_fops_ps_write(void *dat, u64 val)
 853 {
 854         struct mac80211_hwsim_data *data = dat;
 855         enum ps_mode old_ps;
 856
 857         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
 858             val != PS_MANUAL_POLL)
 859                 return -EINVAL;
 860
 861         old_ps = data->ps;
 862         data->ps = val;
 863
 864         if (val == PS_MANUAL_POLL) {
 865                 ieee80211_iterate_active_interfaces(data->hw,
 866                                                     hwsim_send_ps_poll, data);
 867                 data->ps_poll_pending = true;
 868         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
 869                 ieee80211_iterate_active_interfaces(data->hw,
 870                                                     hwsim_send_nullfunc_ps,
 871                                                     data);
 872         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
 873                 ieee80211_iterate_active_interfaces(data->hw,
 874                                                     hwsim_send_nullfunc_no_ps,
 875                                                     data);
 876         }
 877
 878         return 0;
 879 }
 880
 881 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
 882                         "%llu\n");
 883
 884
 885 static int hwsim_fops_group_read(void *dat, u64 *val)
 886 {
 887         struct mac80211_hwsim_data *data = dat;
 888         *val = data->group;
 889         return 0;
 890 }
 891
 892 static int hwsim_fops_group_write(void *dat, u64 val)
 893 {
 894         struct mac80211_hwsim_data *data = dat;
 895         data->group = val;
 896         return 0;
 897 }
 898
 899 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
 900                         hwsim_fops_group_read, hwsim_fops_group_write,
 901                         "%llx\n");
 902
 903 static int __init init_mac80211_hwsim(void)
 904 {
 905         int i, err = 0;
 906         u8 addr[ETH_ALEN];
 907         struct mac80211_hwsim_data *data;
 908         struct ieee80211_hw *hw;
 909         enum ieee80211_band band;
 910
 911         if (radios < 1 || radios > 100)
 912                 return -EINVAL;
 913
 914         spin_lock_init(&hwsim_radio_lock);
 915         INIT_LIST_HEAD(&hwsim_radios);
 916
 917         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
 918         if (IS_ERR(hwsim_class))
 919                 return PTR_ERR(hwsim_class);
 920
 921         memset(addr, 0, ETH_ALEN);
 922         addr[0] = 0x02;
 923
 924         for (i = 0; i < radios; i++) {
 925                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
 926                        i);
 927                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
 928                 if (!hw) {
 929                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
 930                                "failed\n");
 931                         err = -ENOMEM;
 932                         goto failed;
 933                 }
 934                 data = hw->priv;
 935                 data->hw = hw;
 936
 937                 data->dev = device_create(hwsim_class, NULL, 0, hw,
 938                                           "hwsim%d", i);
 939                 if (IS_ERR(data->dev)) {
 940                         printk(KERN_DEBUG
 941                                "mac80211_hwsim: device_create "
 942                                "failed (%ld)\n", PTR_ERR(data->dev));
 943                         err = -ENOMEM;
 944                         goto failed_drvdata;
 945                 }
 946                 data->dev->driver = &mac80211_hwsim_driver;
 947
 948                 SET_IEEE80211_DEV(hw, data->dev);
 949                 addr[3] = i >> 8;
 950                 addr[4] = i;
 951                 SET_IEEE80211_PERM_ADDR(hw, addr);
 952
 953                 hw->channel_change_time = 1;
 954                 hw->queues = 4;
 955                 hw->wiphy->interface_modes =
 956                         BIT(NL80211_IFTYPE_STATION) |
 957                         BIT(NL80211_IFTYPE_AP) |
 958                         BIT(NL80211_IFTYPE_MESH_POINT);
 959
 960                 hw->flags = IEEE80211_HW_MFP_CAPABLE;
 961
 962                 /* ask mac80211 to reserve space for magic */
 963                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
 964                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
 965
 966                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
 967                         sizeof(hwsim_channels_2ghz));
 968                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
 969                         sizeof(hwsim_channels_5ghz));
 970                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
 971
 972                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
 973                         struct ieee80211_supported_band *sband = &data->bands[band];
 974                         switch (band) {
 975                         case IEEE80211_BAND_2GHZ:
 976                                 sband->channels = data->channels_2ghz;
 977                                 sband->n_channels =
 978                                         ARRAY_SIZE(hwsim_channels_2ghz);
 979                                 break;
 980                         case IEEE80211_BAND_5GHZ:
 981                                 sband->channels = data->channels_5ghz;
 982                                 sband->n_channels =
 983                                         ARRAY_SIZE(hwsim_channels_5ghz);
 984                                 break;
 985                         default:
 986                                 break;
 987                         }
 988
 989                         sband->bitrates = data->rates;
 990                         sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
 991
 992                         sband->ht_cap.ht_supported = true;
 993                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 994                                 IEEE80211_HT_CAP_GRN_FLD |
 995                                 IEEE80211_HT_CAP_SGI_40 |
 996                                 IEEE80211_HT_CAP_DSSSCCK40;
 997                         sband->ht_cap.ampdu_factor = 0x3;
 998                         sband->ht_cap.ampdu_density = 0x6;
 999                         memset(&sband->ht_cap.mcs, 0,
1000                                sizeof(sband->ht_cap.mcs));
1001                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1002                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1003                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1004
1005                         hw->wiphy->bands[band] = sband;
1006                 }
1007                 /* By default all radios are belonging to the first group */
1008                 data->group = 1;
1009
1010                 /* Work to be done prior to ieee80211_register_hw() */
1011                 switch (regtest) {
1012                 case HWSIM_REGTEST_DISABLED:
1013                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1014                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1015                 case HWSIM_REGTEST_DIFF_COUNTRY:
1016                         /*
1017                          * Nothing to be done for driver regulatory domain
1018                          * hints prior to ieee80211_register_hw()
1019                          */
1020                         break;
1021                 case HWSIM_REGTEST_WORLD_ROAM:
1022                         if (i == 0) {
1023                                 hw->wiphy->custom_regulatory = true;
1024                                 wiphy_apply_custom_regulatory(hw->wiphy,
1025                                         &hwsim_world_regdom_custom_01);
1026                         }
1027                         break;
1028                 case HWSIM_REGTEST_CUSTOM_WORLD:
1029                         hw->wiphy->custom_regulatory = true;
1030                         wiphy_apply_custom_regulatory(hw->wiphy,
1031                                 &hwsim_world_regdom_custom_01);
1032                         break;
1033                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1034                         if (i == 0) {
1035                                 hw->wiphy->custom_regulatory = true;
1036                                 wiphy_apply_custom_regulatory(hw->wiphy,
1037                                         &hwsim_world_regdom_custom_01);
1038                         } else if (i == 1) {
1039                                 hw->wiphy->custom_regulatory = true;
1040                                 wiphy_apply_custom_regulatory(hw->wiphy,
1041                                         &hwsim_world_regdom_custom_02);
1042                         }
1043                         break;
1044                 case HWSIM_REGTEST_STRICT_ALL:
1045                         hw->wiphy->strict_regulatory = true;
1046                         break;
1047                 case HWSIM_REGTEST_STRICT_FOLLOW:
1048                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1049                         if (i == 0)
1050                                 hw->wiphy->strict_regulatory = true;
1051                         break;
1052                 case HWSIM_REGTEST_ALL:
1053                         if (i == 0) {
1054                                 hw->wiphy->custom_regulatory = true;
1055                                 wiphy_apply_custom_regulatory(hw->wiphy,
1056                                         &hwsim_world_regdom_custom_01);
1057                         } else if (i == 1) {
1058                                 hw->wiphy->custom_regulatory = true;
1059                                 wiphy_apply_custom_regulatory(hw->wiphy,
1060                                         &hwsim_world_regdom_custom_02);
1061                         } else if (i == 4)
1062                                 hw->wiphy->strict_regulatory = true;
1063                         break;
1064                 default:
1065                         break;
1066                 }
1067
1068                 /* give the regulatory workqueue a chance to run */
1069                 if (regtest)
1070                         schedule_timeout_interruptible(1);
1071                 err = ieee80211_register_hw(hw);
1072                 if (err < 0) {
1073                         printk(KERN_DEBUG "mac80211_hwsim: "
1074                                "ieee80211_register_hw failed (%d)\n", err);
1075                         goto failed_hw;
1076                 }
1077
1078                 /* Work to be done after to ieee80211_register_hw() */
1079                 switch (regtest) {
1080                 case HWSIM_REGTEST_WORLD_ROAM:
1081                 case HWSIM_REGTEST_DISABLED:
1082                         break;
1083                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1084                         if (!i)
1085                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1086                         break;
1087                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1088                 case HWSIM_REGTEST_STRICT_ALL:
1089                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1090                         break;
1091                 case HWSIM_REGTEST_DIFF_COUNTRY:
1092                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1093                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1094                         break;
1095                 case HWSIM_REGTEST_CUSTOM_WORLD:
1096                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1097                         /*
1098                          * Nothing to be done for custom world regulatory
1099                          * domains after to ieee80211_register_hw
1100                          */
1101                         break;
1102                 case HWSIM_REGTEST_STRICT_FOLLOW:
1103                         if (i == 0)
1104                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1105                         break;
1106                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1107                         if (i == 0)
1108                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1109                         else if (i == 1)
1110                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1111                         break;
1112                 case HWSIM_REGTEST_ALL:
1113                         if (i == 2)
1114                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1115                         else if (i == 3)
1116                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1117                         else if (i == 4)
1118                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1119                         break;
1120                 default:
1121                         break;
1122                 }
1123
1124                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1125                        wiphy_name(hw->wiphy),
1126                        hw->wiphy->perm_addr);
1127
1128                 data->debugfs = debugfs_create_dir("hwsim",
1129                                                    hw->wiphy->debugfsdir);
1130                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1131                                                        data->debugfs, data,
1132                                                        &hwsim_fops_ps);
1133                 data->debugfs_group = debugfs_create_file("group", 0666,
1134                                                         data->debugfs, data,
1135                                                         &hwsim_fops_group);
1136
1137                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1138                             (unsigned long) hw);
1139
1140                 list_add_tail(&data->list, &hwsim_radios);
1141         }
1142
1143         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1144         if (hwsim_mon == NULL)
1145                 goto failed;
1146
1147         rtnl_lock();
1148
1149         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1150         if (err < 0)
1151                 goto failed_mon;
1152
1153
1154         err = register_netdevice(hwsim_mon);
1155         if (err < 0)
1156                 goto failed_mon;
1157
1158         rtnl_unlock();
1159
1160         return 0;
1161
1162 failed_mon:
1163         rtnl_unlock();
1164         free_netdev(hwsim_mon);
1165         mac80211_hwsim_free();
1166         return err;
1167
1168 failed_hw:
1169         device_unregister(data->dev);
1170 failed_drvdata:
1171         ieee80211_free_hw(hw);
1172 failed:
1173         mac80211_hwsim_free();
1174         return err;
1175 }
1176
1177
1178 static void __exit exit_mac80211_hwsim(void)
1179 {
1180         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1181
1182         unregister_netdev(hwsim_mon);
1183         mac80211_hwsim_free();
1184 }
1185
1186
1187 module_init(init_mac80211_hwsim);
1188 module_exit(exit_mac80211_hwsim);