SAFE public projects git trees. - safe/jmp/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/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 struct mac80211_hwsim_addr_match_data {
 440         bool ret;
 441         const u8 *addr;
 442 };
 443
 444 static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
 445                                      struct ieee80211_vif *vif)
 446 {
 447         struct mac80211_hwsim_addr_match_data *md = data;
 448         if (memcmp(mac, md->addr, ETH_ALEN) == 0)
 449                 md->ret = true;
 450 }
 451
 452
 453 static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
 454                                       const u8 *addr)
 455 {
 456         struct mac80211_hwsim_addr_match_data md;
 457
 458         if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
 459                 return true;
 460
 461         md.ret = false;
 462         md.addr = addr;
 463         ieee80211_iterate_active_interfaces_atomic(data->hw,
 464                                                    mac80211_hwsim_addr_iter,
 465                                                    &md);
 466
 467         return md.ret;
 468 }
 469
 470
 471 static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 472                                     struct sk_buff *skb)
 473 {
 474         struct mac80211_hwsim_data *data = hw->priv, *data2;
 475         bool ack = false;
 476         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 477         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 478         struct ieee80211_rx_status rx_status;
 479
 480         if (data->idle) {
 481                 printk(KERN_DEBUG "%s: Trying to TX when idle - reject\n",
 482                        wiphy_name(hw->wiphy));
 483                 return false;
 484         }
 485
 486         memset(&rx_status, 0, sizeof(rx_status));
 487         /* TODO: set mactime */
 488         rx_status.freq = data->channel->center_freq;
 489         rx_status.band = data->channel->band;
 490         rx_status.rate_idx = info->control.rates[0].idx;
 491         /* TODO: simulate real signal strength (and optional packet loss) */
 492         rx_status.signal = -50;
 493
 494         if (data->ps != PS_DISABLED)
 495                 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
 496
 497         /* release the skb's source info */
 498         skb_orphan(skb);
 499         skb_dst_drop(skb);
 500         skb->mark = 0;
 501         secpath_reset(skb);
 502         nf_reset(skb);
 503
 504         /* Copy skb to all enabled radios that are on the current frequency */
 505         spin_lock(&hwsim_radio_lock);
 506         list_for_each_entry(data2, &hwsim_radios, list) {
 507                 struct sk_buff *nskb;
 508
 509                 if (data == data2)
 510                         continue;
 511
 512                 if (data2->idle || !data2->started ||
 513                     !hwsim_ps_rx_ok(data2, skb) ||
 514                     !data->channel || !data2->channel ||
 515                     data->channel->center_freq != data2->channel->center_freq ||
 516                     !(data->group & data2->group))
 517                         continue;
 518
 519                 nskb = skb_copy(skb, GFP_ATOMIC);
 520                 if (nskb == NULL)
 521                         continue;
 522
 523                 if (mac80211_hwsim_addr_match(data2, hdr->addr1))
 524                         ack = true;
 525                 memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
 526                 ieee80211_rx_irqsafe(data2->hw, nskb);
 527         }
 528         spin_unlock(&hwsim_radio_lock);
 529
 530         return ack;
 531 }
 532
 533
 534 static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 535 {
 536         bool ack;
 537         struct ieee80211_tx_info *txi;
 538
 539         mac80211_hwsim_monitor_rx(hw, skb);
 540
 541         if (skb->len < 10) {
 542                 /* Should not happen; just a sanity check for addr1 use */
 543                 dev_kfree_skb(skb);
 544                 return NETDEV_TX_OK;
 545         }
 546
 547         ack = mac80211_hwsim_tx_frame(hw, skb);
 548         if (ack && skb->len >= 16) {
 549                 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 550                 mac80211_hwsim_monitor_ack(hw, hdr->addr2);
 551         }
 552
 553         txi = IEEE80211_SKB_CB(skb);
 554
 555         if (txi->control.vif)
 556                 hwsim_check_magic(txi->control.vif);
 557         if (txi->control.sta)
 558                 hwsim_check_sta_magic(txi->control.sta);
 559
 560         ieee80211_tx_info_clear_status(txi);
 561         if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
 562                 txi->flags |= IEEE80211_TX_STAT_ACK;
 563         ieee80211_tx_status_irqsafe(hw, skb);
 564         return NETDEV_TX_OK;
 565 }
 566
 567
 568 static int mac80211_hwsim_start(struct ieee80211_hw *hw)
 569 {
 570         struct mac80211_hwsim_data *data = hw->priv;
 571         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 572         data->started = 1;
 573         return 0;
 574 }
 575
 576
 577 static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
 578 {
 579         struct mac80211_hwsim_data *data = hw->priv;
 580         data->started = 0;
 581         del_timer(&data->beacon_timer);
 582         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 583 }
 584
 585
 586 static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
 587                                         struct ieee80211_vif *vif)
 588 {
 589         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 590                wiphy_name(hw->wiphy), __func__, vif->type,
 591                vif->addr);
 592         hwsim_set_magic(vif);
 593         return 0;
 594 }
 595
 596
 597 static void mac80211_hwsim_remove_interface(
 598         struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 599 {
 600         printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
 601                wiphy_name(hw->wiphy), __func__, vif->type,
 602                vif->addr);
 603         hwsim_check_magic(vif);
 604         hwsim_clear_magic(vif);
 605 }
 606
 607
 608 static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
 609                                      struct ieee80211_vif *vif)
 610 {
 611         struct ieee80211_hw *hw = arg;
 612         struct sk_buff *skb;
 613         struct ieee80211_tx_info *info;
 614
 615         hwsim_check_magic(vif);
 616
 617         if (vif->type != NL80211_IFTYPE_AP &&
 618             vif->type != NL80211_IFTYPE_MESH_POINT)
 619                 return;
 620
 621         skb = ieee80211_beacon_get(hw, vif);
 622         if (skb == NULL)
 623                 return;
 624         info = IEEE80211_SKB_CB(skb);
 625
 626         mac80211_hwsim_monitor_rx(hw, skb);
 627         mac80211_hwsim_tx_frame(hw, skb);
 628         dev_kfree_skb(skb);
 629 }
 630
 631
 632 static void mac80211_hwsim_beacon(unsigned long arg)
 633 {
 634         struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
 635         struct mac80211_hwsim_data *data = hw->priv;
 636
 637         if (!data->started)
 638                 return;
 639
 640         ieee80211_iterate_active_interfaces_atomic(
 641                 hw, mac80211_hwsim_beacon_tx, hw);
 642
 643         data->beacon_timer.expires = jiffies + data->beacon_int;
 644         add_timer(&data->beacon_timer);
 645 }
 646
 647
 648 static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 649 {
 650         struct mac80211_hwsim_data *data = hw->priv;
 651         struct ieee80211_conf *conf = &hw->conf;
 652         static const char *chantypes[4] = {
 653                 [NL80211_CHAN_NO_HT] = "noht",
 654                 [NL80211_CHAN_HT20] = "ht20",
 655                 [NL80211_CHAN_HT40MINUS] = "ht40-",
 656                 [NL80211_CHAN_HT40PLUS] = "ht40+",
 657         };
 658         static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 659                 [IEEE80211_SMPS_AUTOMATIC] = "auto",
 660                 [IEEE80211_SMPS_OFF] = "off",
 661                 [IEEE80211_SMPS_STATIC] = "static",
 662                 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
 663         };
 664
 665         printk(KERN_DEBUG "%s:%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
 666                wiphy_name(hw->wiphy), __func__,
 667                conf->channel->center_freq,
 668                chantypes[conf->channel_type],
 669                !!(conf->flags & IEEE80211_CONF_IDLE),
 670                !!(conf->flags & IEEE80211_CONF_PS),
 671                smps_modes[conf->smps_mode]);
 672
 673         data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
 674
 675         data->channel = conf->channel;
 676         if (!data->started || !data->beacon_int)
 677                 del_timer(&data->beacon_timer);
 678         else
 679                 mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
 680
 681         return 0;
 682 }
 683
 684
 685 static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 686                                             unsigned int changed_flags,
 687                                             unsigned int *total_flags,u64 multicast)
 688 {
 689         struct mac80211_hwsim_data *data = hw->priv;
 690
 691         printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
 692
 693         data->rx_filter = 0;
 694         if (*total_flags & FIF_PROMISC_IN_BSS)
 695                 data->rx_filter |= FIF_PROMISC_IN_BSS;
 696         if (*total_flags & FIF_ALLMULTI)
 697                 data->rx_filter |= FIF_ALLMULTI;
 698
 699         *total_flags = data->rx_filter;
 700 }
 701
 702 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 703                                             struct ieee80211_vif *vif,
 704                                             struct ieee80211_bss_conf *info,
 705                                             u32 changed)
 706 {
 707         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 708         struct mac80211_hwsim_data *data = hw->priv;
 709
 710         hwsim_check_magic(vif);
 711
 712         printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
 713                wiphy_name(hw->wiphy), __func__, changed);
 714
 715         if (changed & BSS_CHANGED_BSSID) {
 716                 printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
 717                        wiphy_name(hw->wiphy), __func__,
 718                        info->bssid);
 719                 memcpy(vp->bssid, info->bssid, ETH_ALEN);
 720         }
 721
 722         if (changed & BSS_CHANGED_ASSOC) {
 723                 printk(KERN_DEBUG "  %s: ASSOC: assoc=%d aid=%d\n",
 724                        wiphy_name(hw->wiphy), info->assoc, info->aid);
 725                 vp->assoc = info->assoc;
 726                 vp->aid = info->aid;
 727         }
 728
 729         if (changed & BSS_CHANGED_BEACON_INT) {
 730                 printk(KERN_DEBUG "  %s: BCNINT: %d\n",
 731                        wiphy_name(hw->wiphy), info->beacon_int);
 732                 data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
 733                 if (WARN_ON(!data->beacon_int))
 734                         data->beacon_int = 1;
 735                 if (data->started)
 736                         mod_timer(&data->beacon_timer,
 737                                   jiffies + data->beacon_int);
 738         }
 739
 740         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
 741                 printk(KERN_DEBUG "  %s: ERP_CTS_PROT: %d\n",
 742                        wiphy_name(hw->wiphy), info->use_cts_prot);
 743         }
 744
 745         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
 746                 printk(KERN_DEBUG "  %s: ERP_PREAMBLE: %d\n",
 747                        wiphy_name(hw->wiphy), info->use_short_preamble);
 748         }
 749
 750         if (changed & BSS_CHANGED_ERP_SLOT) {
 751                 printk(KERN_DEBUG "  %s: ERP_SLOT: %d\n",
 752                        wiphy_name(hw->wiphy), info->use_short_slot);
 753         }
 754
 755         if (changed & BSS_CHANGED_HT) {
 756                 printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 757                        wiphy_name(hw->wiphy),
 758                        info->ht_operation_mode);
 759         }
 760
 761         if (changed & BSS_CHANGED_BASIC_RATES) {
 762                 printk(KERN_DEBUG "  %s: BASIC_RATES: 0x%llx\n",
 763                        wiphy_name(hw->wiphy),
 764                        (unsigned long long) info->basic_rates);
 765         }
 766 }
 767
 768 static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
 769                                       struct ieee80211_vif *vif,
 770                                       enum sta_notify_cmd cmd,
 771                                       struct ieee80211_sta *sta)
 772 {
 773         hwsim_check_magic(vif);
 774         switch (cmd) {
 775         case STA_NOTIFY_ADD:
 776                 hwsim_set_sta_magic(sta);
 777                 break;
 778         case STA_NOTIFY_REMOVE:
 779                 hwsim_clear_sta_magic(sta);
 780                 break;
 781         case STA_NOTIFY_SLEEP:
 782         case STA_NOTIFY_AWAKE:
 783                 /* TODO: make good use of these flags */
 784                 break;
 785         }
 786 }
 787
 788 static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
 789                                   struct ieee80211_sta *sta,
 790                                   bool set)
 791 {
 792         hwsim_check_sta_magic(sta);
 793         return 0;
 794 }
 795
 796 static int mac80211_hwsim_conf_tx(
 797         struct ieee80211_hw *hw, u16 queue,
 798         const struct ieee80211_tx_queue_params *params)
 799 {
 800         printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
 801                "aifs=%d)\n",
 802                wiphy_name(hw->wiphy), __func__, queue,
 803                params->txop, params->cw_min, params->cw_max, params->aifs);
 804         return 0;
 805 }
 806
 807 #ifdef CONFIG_NL80211_TESTMODE
 808 /*
 809  * This section contains example code for using netlink
 810  * attributes with the testmode command in nl80211.
 811  */
 812
 813 /* These enums need to be kept in sync with userspace */
 814 enum hwsim_testmode_attr {
 815         __HWSIM_TM_ATTR_INVALID = 0,
 816         HWSIM_TM_ATTR_CMD       = 1,
 817         HWSIM_TM_ATTR_PS        = 2,
 818
 819         /* keep last */
 820         __HWSIM_TM_ATTR_AFTER_LAST,
 821         HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
 822 };
 823
 824 enum hwsim_testmode_cmd {
 825         HWSIM_TM_CMD_SET_PS             = 0,
 826         HWSIM_TM_CMD_GET_PS             = 1,
 827 };
 828
 829 static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
 830         [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
 831         [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
 832 };
 833
 834 static int hwsim_fops_ps_write(void *dat, u64 val);
 835
 836 static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
 837                                        void *data, int len)
 838 {
 839         struct mac80211_hwsim_data *hwsim = hw->priv;
 840         struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
 841         struct sk_buff *skb;
 842         int err, ps;
 843
 844         err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
 845                         hwsim_testmode_policy);
 846         if (err)
 847                 return err;
 848
 849         if (!tb[HWSIM_TM_ATTR_CMD])
 850                 return -EINVAL;
 851
 852         switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
 853         case HWSIM_TM_CMD_SET_PS:
 854                 if (!tb[HWSIM_TM_ATTR_PS])
 855                         return -EINVAL;
 856                 ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
 857                 return hwsim_fops_ps_write(hwsim, ps);
 858         case HWSIM_TM_CMD_GET_PS:
 859                 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
 860                                                 nla_total_size(sizeof(u32)));
 861                 if (!skb)
 862                         return -ENOMEM;
 863                 NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
 864                 return cfg80211_testmode_reply(skb);
 865         default:
 866                 return -EOPNOTSUPP;
 867         }
 868
 869  nla_put_failure:
 870         kfree_skb(skb);
 871         return -ENOBUFS;
 872 }
 873 #endif
 874
 875 static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
 876                                        struct ieee80211_vif *vif,
 877                                        enum ieee80211_ampdu_mlme_action action,
 878                                        struct ieee80211_sta *sta, u16 tid, u16 *ssn)
 879 {
 880         switch (action) {
 881         case IEEE80211_AMPDU_TX_START:
 882                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 883                 break;
 884         case IEEE80211_AMPDU_TX_STOP:
 885                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 886                 break;
 887         case IEEE80211_AMPDU_TX_OPERATIONAL:
 888                 break;
 889         case IEEE80211_AMPDU_RX_START:
 890         case IEEE80211_AMPDU_RX_STOP:
 891                 break;
 892         default:
 893                 return -EOPNOTSUPP;
 894         }
 895
 896         return 0;
 897 }
 898
 899 static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
 900 {
 901         /*
 902          * In this special case, there's nothing we need to
 903          * do because hwsim does transmission synchronously.
 904          * In the future, when it does transmissions via
 905          * userspace, we may need to do something.
 906          */
 907 }
 908
 909
 910 static const struct ieee80211_ops mac80211_hwsim_ops =
 911 {
 912         .tx = mac80211_hwsim_tx,
 913         .start = mac80211_hwsim_start,
 914         .stop = mac80211_hwsim_stop,
 915         .add_interface = mac80211_hwsim_add_interface,
 916         .remove_interface = mac80211_hwsim_remove_interface,
 917         .config = mac80211_hwsim_config,
 918         .configure_filter = mac80211_hwsim_configure_filter,
 919         .bss_info_changed = mac80211_hwsim_bss_info_changed,
 920         .sta_notify = mac80211_hwsim_sta_notify,
 921         .set_tim = mac80211_hwsim_set_tim,
 922         .conf_tx = mac80211_hwsim_conf_tx,
 923         CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
 924         .ampdu_action = mac80211_hwsim_ampdu_action,
 925         .flush = mac80211_hwsim_flush,
 926 };
 927
 928
 929 static void mac80211_hwsim_free(void)
 930 {
 931         struct list_head tmplist, *i, *tmp;
 932         struct mac80211_hwsim_data *data, *tmpdata;
 933
 934         INIT_LIST_HEAD(&tmplist);
 935
 936         spin_lock_bh(&hwsim_radio_lock);
 937         list_for_each_safe(i, tmp, &hwsim_radios)
 938                 list_move(i, &tmplist);
 939         spin_unlock_bh(&hwsim_radio_lock);
 940
 941         list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
 942                 debugfs_remove(data->debugfs_group);
 943                 debugfs_remove(data->debugfs_ps);
 944                 debugfs_remove(data->debugfs);
 945                 ieee80211_unregister_hw(data->hw);
 946                 device_unregister(data->dev);
 947                 ieee80211_free_hw(data->hw);
 948         }
 949         class_destroy(hwsim_class);
 950 }
 951
 952
 953 static struct device_driver mac80211_hwsim_driver = {
 954         .name = "mac80211_hwsim"
 955 };
 956
 957 static const struct net_device_ops hwsim_netdev_ops = {
 958         .ndo_start_xmit         = hwsim_mon_xmit,
 959         .ndo_change_mtu         = eth_change_mtu,
 960         .ndo_set_mac_address    = eth_mac_addr,
 961         .ndo_validate_addr      = eth_validate_addr,
 962 };
 963
 964 static void hwsim_mon_setup(struct net_device *dev)
 965 {
 966         dev->netdev_ops = &hwsim_netdev_ops;
 967         dev->destructor = free_netdev;
 968         ether_setup(dev);
 969         dev->tx_queue_len = 0;
 970         dev->type = ARPHRD_IEEE80211_RADIOTAP;
 971         memset(dev->dev_addr, 0, ETH_ALEN);
 972         dev->dev_addr[0] = 0x12;
 973 }
 974
 975
 976 static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 977 {
 978         struct mac80211_hwsim_data *data = dat;
 979         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 980         struct sk_buff *skb;
 981         struct ieee80211_pspoll *pspoll;
 982
 983         if (!vp->assoc)
 984                 return;
 985
 986         printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
 987                wiphy_name(data->hw->wiphy), __func__, vp->bssid, vp->aid);
 988
 989         skb = dev_alloc_skb(sizeof(*pspoll));
 990         if (!skb)
 991                 return;
 992         pspoll = (void *) skb_put(skb, sizeof(*pspoll));
 993         pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 994                                             IEEE80211_STYPE_PSPOLL |
 995                                             IEEE80211_FCTL_PM);
 996         pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
 997         memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
 998         memcpy(pspoll->ta, mac, ETH_ALEN);
 999         if (!mac80211_hwsim_tx_frame(data->hw, skb))
1000                 printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
1001         dev_kfree_skb(skb);
1002 }
1003
1004
1005 static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
1006                                 struct ieee80211_vif *vif, int ps)
1007 {
1008         struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1009         struct sk_buff *skb;
1010         struct ieee80211_hdr *hdr;
1011
1012         if (!vp->assoc)
1013                 return;
1014
1015         printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
1016                wiphy_name(data->hw->wiphy), __func__, vp->bssid, ps);
1017
1018         skb = dev_alloc_skb(sizeof(*hdr));
1019         if (!skb)
1020                 return;
1021         hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
1022         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1023                                          IEEE80211_STYPE_NULLFUNC |
1024                                          (ps ? IEEE80211_FCTL_PM : 0));
1025         hdr->duration_id = cpu_to_le16(0);
1026         memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
1027         memcpy(hdr->addr2, mac, ETH_ALEN);
1028         memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
1029         if (!mac80211_hwsim_tx_frame(data->hw, skb))
1030                 printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
1031         dev_kfree_skb(skb);
1032 }
1033
1034
1035 static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
1036                                    struct ieee80211_vif *vif)
1037 {
1038         struct mac80211_hwsim_data *data = dat;
1039         hwsim_send_nullfunc(data, mac, vif, 1);
1040 }
1041
1042
1043 static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
1044                                       struct ieee80211_vif *vif)
1045 {
1046         struct mac80211_hwsim_data *data = dat;
1047         hwsim_send_nullfunc(data, mac, vif, 0);
1048 }
1049
1050
1051 static int hwsim_fops_ps_read(void *dat, u64 *val)
1052 {
1053         struct mac80211_hwsim_data *data = dat;
1054         *val = data->ps;
1055         return 0;
1056 }
1057
1058 static int hwsim_fops_ps_write(void *dat, u64 val)
1059 {
1060         struct mac80211_hwsim_data *data = dat;
1061         enum ps_mode old_ps;
1062
1063         if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
1064             val != PS_MANUAL_POLL)
1065                 return -EINVAL;
1066
1067         old_ps = data->ps;
1068         data->ps = val;
1069
1070         if (val == PS_MANUAL_POLL) {
1071                 ieee80211_iterate_active_interfaces(data->hw,
1072                                                     hwsim_send_ps_poll, data);
1073                 data->ps_poll_pending = true;
1074         } else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
1075                 ieee80211_iterate_active_interfaces(data->hw,
1076                                                     hwsim_send_nullfunc_ps,
1077                                                     data);
1078         } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
1079                 ieee80211_iterate_active_interfaces(data->hw,
1080                                                     hwsim_send_nullfunc_no_ps,
1081                                                     data);
1082         }
1083
1084         return 0;
1085 }
1086
1087 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
1088                         "%llu\n");
1089
1090
1091 static int hwsim_fops_group_read(void *dat, u64 *val)
1092 {
1093         struct mac80211_hwsim_data *data = dat;
1094         *val = data->group;
1095         return 0;
1096 }
1097
1098 static int hwsim_fops_group_write(void *dat, u64 val)
1099 {
1100         struct mac80211_hwsim_data *data = dat;
1101         data->group = val;
1102         return 0;
1103 }
1104
1105 DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
1106                         hwsim_fops_group_read, hwsim_fops_group_write,
1107                         "%llx\n");
1108
1109 static int __init init_mac80211_hwsim(void)
1110 {
1111         int i, err = 0;
1112         u8 addr[ETH_ALEN];
1113         struct mac80211_hwsim_data *data;
1114         struct ieee80211_hw *hw;
1115         enum ieee80211_band band;
1116
1117         if (radios < 1 || radios > 100)
1118                 return -EINVAL;
1119
1120         spin_lock_init(&hwsim_radio_lock);
1121         INIT_LIST_HEAD(&hwsim_radios);
1122
1123         hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
1124         if (IS_ERR(hwsim_class))
1125                 return PTR_ERR(hwsim_class);
1126
1127         memset(addr, 0, ETH_ALEN);
1128         addr[0] = 0x02;
1129
1130         for (i = 0; i < radios; i++) {
1131                 printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
1132                        i);
1133                 hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
1134                 if (!hw) {
1135                         printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
1136                                "failed\n");
1137                         err = -ENOMEM;
1138                         goto failed;
1139                 }
1140                 data = hw->priv;
1141                 data->hw = hw;
1142
1143                 data->dev = device_create(hwsim_class, NULL, 0, hw,
1144                                           "hwsim%d", i);
1145                 if (IS_ERR(data->dev)) {
1146                         printk(KERN_DEBUG
1147                                "mac80211_hwsim: device_create "
1148                                "failed (%ld)\n", PTR_ERR(data->dev));
1149                         err = -ENOMEM;
1150                         goto failed_drvdata;
1151                 }
1152                 data->dev->driver = &mac80211_hwsim_driver;
1153
1154                 SET_IEEE80211_DEV(hw, data->dev);
1155                 addr[3] = i >> 8;
1156                 addr[4] = i;
1157                 SET_IEEE80211_PERM_ADDR(hw, addr);
1158
1159                 hw->channel_change_time = 1;
1160                 hw->queues = 4;
1161                 hw->wiphy->interface_modes =
1162                         BIT(NL80211_IFTYPE_STATION) |
1163                         BIT(NL80211_IFTYPE_AP) |
1164                         BIT(NL80211_IFTYPE_MESH_POINT);
1165
1166                 hw->flags = IEEE80211_HW_MFP_CAPABLE |
1167                             IEEE80211_HW_SIGNAL_DBM |
1168                             IEEE80211_HW_SUPPORTS_STATIC_SMPS |
1169                             IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
1170
1171                 /* ask mac80211 to reserve space for magic */
1172                 hw->vif_data_size = sizeof(struct hwsim_vif_priv);
1173                 hw->sta_data_size = sizeof(struct hwsim_sta_priv);
1174
1175                 memcpy(data->channels_2ghz, hwsim_channels_2ghz,
1176                         sizeof(hwsim_channels_2ghz));
1177                 memcpy(data->channels_5ghz, hwsim_channels_5ghz,
1178                         sizeof(hwsim_channels_5ghz));
1179                 memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
1180
1181                 for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
1182                         struct ieee80211_supported_band *sband = &data->bands[band];
1183                         switch (band) {
1184                         case IEEE80211_BAND_2GHZ:
1185                                 sband->channels = data->channels_2ghz;
1186                                 sband->n_channels =
1187                                         ARRAY_SIZE(hwsim_channels_2ghz);
1188                                 sband->bitrates = data->rates;
1189                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
1190                                 break;
1191                         case IEEE80211_BAND_5GHZ:
1192                                 sband->channels = data->channels_5ghz;
1193                                 sband->n_channels =
1194                                         ARRAY_SIZE(hwsim_channels_5ghz);
1195                                 sband->bitrates = data->rates + 4;
1196                                 sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
1197                                 break;
1198                         default:
1199                                 break;
1200                         }
1201
1202                         sband->ht_cap.ht_supported = true;
1203                         sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
1204                                 IEEE80211_HT_CAP_GRN_FLD |
1205                                 IEEE80211_HT_CAP_SGI_40 |
1206                                 IEEE80211_HT_CAP_DSSSCCK40;
1207                         sband->ht_cap.ampdu_factor = 0x3;
1208                         sband->ht_cap.ampdu_density = 0x6;
1209                         memset(&sband->ht_cap.mcs, 0,
1210                                sizeof(sband->ht_cap.mcs));
1211                         sband->ht_cap.mcs.rx_mask[0] = 0xff;
1212                         sband->ht_cap.mcs.rx_mask[1] = 0xff;
1213                         sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1214
1215                         hw->wiphy->bands[band] = sband;
1216                 }
1217                 /* By default all radios are belonging to the first group */
1218                 data->group = 1;
1219
1220                 /* Work to be done prior to ieee80211_register_hw() */
1221                 switch (regtest) {
1222                 case HWSIM_REGTEST_DISABLED:
1223                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1224                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1225                 case HWSIM_REGTEST_DIFF_COUNTRY:
1226                         /*
1227                          * Nothing to be done for driver regulatory domain
1228                          * hints prior to ieee80211_register_hw()
1229                          */
1230                         break;
1231                 case HWSIM_REGTEST_WORLD_ROAM:
1232                         if (i == 0) {
1233                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1234                                 wiphy_apply_custom_regulatory(hw->wiphy,
1235                                         &hwsim_world_regdom_custom_01);
1236                         }
1237                         break;
1238                 case HWSIM_REGTEST_CUSTOM_WORLD:
1239                         hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1240                         wiphy_apply_custom_regulatory(hw->wiphy,
1241                                 &hwsim_world_regdom_custom_01);
1242                         break;
1243                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1244                         if (i == 0) {
1245                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1246                                 wiphy_apply_custom_regulatory(hw->wiphy,
1247                                         &hwsim_world_regdom_custom_01);
1248                         } else if (i == 1) {
1249                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1250                                 wiphy_apply_custom_regulatory(hw->wiphy,
1251                                         &hwsim_world_regdom_custom_02);
1252                         }
1253                         break;
1254                 case HWSIM_REGTEST_STRICT_ALL:
1255                         hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1256                         break;
1257                 case HWSIM_REGTEST_STRICT_FOLLOW:
1258                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1259                         if (i == 0)
1260                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1261                         break;
1262                 case HWSIM_REGTEST_ALL:
1263                         if (i == 0) {
1264                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1265                                 wiphy_apply_custom_regulatory(hw->wiphy,
1266                                         &hwsim_world_regdom_custom_01);
1267                         } else if (i == 1) {
1268                                 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1269                                 wiphy_apply_custom_regulatory(hw->wiphy,
1270                                         &hwsim_world_regdom_custom_02);
1271                         } else if (i == 4)
1272                                 hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
1273                         break;
1274                 default:
1275                         break;
1276                 }
1277
1278                 /* give the regulatory workqueue a chance to run */
1279                 if (regtest)
1280                         schedule_timeout_interruptible(1);
1281                 err = ieee80211_register_hw(hw);
1282                 if (err < 0) {
1283                         printk(KERN_DEBUG "mac80211_hwsim: "
1284                                "ieee80211_register_hw failed (%d)\n", err);
1285                         goto failed_hw;
1286                 }
1287
1288                 /* Work to be done after to ieee80211_register_hw() */
1289                 switch (regtest) {
1290                 case HWSIM_REGTEST_WORLD_ROAM:
1291                 case HWSIM_REGTEST_DISABLED:
1292                         break;
1293                 case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
1294                         if (!i)
1295                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1296                         break;
1297                 case HWSIM_REGTEST_DRIVER_REG_ALL:
1298                 case HWSIM_REGTEST_STRICT_ALL:
1299                         regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1300                         break;
1301                 case HWSIM_REGTEST_DIFF_COUNTRY:
1302                         if (i < ARRAY_SIZE(hwsim_alpha2s))
1303                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
1304                         break;
1305                 case HWSIM_REGTEST_CUSTOM_WORLD:
1306                 case HWSIM_REGTEST_CUSTOM_WORLD_2:
1307                         /*
1308                          * Nothing to be done for custom world regulatory
1309                          * domains after to ieee80211_register_hw
1310                          */
1311                         break;
1312                 case HWSIM_REGTEST_STRICT_FOLLOW:
1313                         if (i == 0)
1314                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1315                         break;
1316                 case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
1317                         if (i == 0)
1318                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1319                         else if (i == 1)
1320                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1321                         break;
1322                 case HWSIM_REGTEST_ALL:
1323                         if (i == 2)
1324                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
1325                         else if (i == 3)
1326                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
1327                         else if (i == 4)
1328                                 regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
1329                         break;
1330                 default:
1331                         break;
1332                 }
1333
1334                 printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
1335                        wiphy_name(hw->wiphy),
1336                        hw->wiphy->perm_addr);
1337
1338                 data->debugfs = debugfs_create_dir("hwsim",
1339                                                    hw->wiphy->debugfsdir);
1340                 data->debugfs_ps = debugfs_create_file("ps", 0666,
1341                                                        data->debugfs, data,
1342                                                        &hwsim_fops_ps);
1343                 data->debugfs_group = debugfs_create_file("group", 0666,
1344                                                         data->debugfs, data,
1345                                                         &hwsim_fops_group);
1346
1347                 setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
1348                             (unsigned long) hw);
1349
1350                 list_add_tail(&data->list, &hwsim_radios);
1351         }
1352
1353         hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
1354         if (hwsim_mon == NULL)
1355                 goto failed;
1356
1357         rtnl_lock();
1358
1359         err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
1360         if (err < 0)
1361                 goto failed_mon;
1362
1363
1364         err = register_netdevice(hwsim_mon);
1365         if (err < 0)
1366                 goto failed_mon;
1367
1368         rtnl_unlock();
1369
1370         return 0;
1371
1372 failed_mon:
1373         rtnl_unlock();
1374         free_netdev(hwsim_mon);
1375         mac80211_hwsim_free();
1376         return err;
1377
1378 failed_hw:
1379         device_unregister(data->dev);
1380 failed_drvdata:
1381         ieee80211_free_hw(hw);
1382 failed:
1383         mac80211_hwsim_free();
1384         return err;
1385 }
1386
1387
1388 static void __exit exit_mac80211_hwsim(void)
1389 {
1390         printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
1391
1392         mac80211_hwsim_free();
1393         unregister_netdev(hwsim_mon);
1394 }
1395
1396
1397 module_init(init_mac80211_hwsim);
1398 module_exit(exit_mac80211_hwsim);