linux/drivers/net/wireless/mac80211_hwsim.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
   4 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
   5 * Copyright (c) 2011, Javier Lopez <jlopex@gmail.com>
   6 * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
   7 * Copyright (C) 2018 - 2020 Intel Corporation
   8 */
   9
  10/*
  11 * TODO:
  12 * - Add TSF sync and fix IBSS beacon transmission by adding
  13 *   competition for "air time" at TBTT
  14 * - RX filtering based on filter configuration (data->rx_filter)
  15 */
  16
  17#include <linux/list.h>
  18#include <linux/slab.h>
  19#include <linux/spinlock.h>
  20#include <net/dst.h>
  21#include <net/xfrm.h>
  22#include <net/mac80211.h>
  23#include <net/ieee80211_radiotap.h>
  24#include <linux/if_arp.h>
  25#include <linux/rtnetlink.h>
  26#include <linux/etherdevice.h>
  27#include <linux/platform_device.h>
  28#include <linux/debugfs.h>
  29#include <linux/module.h>
  30#include <linux/ktime.h>
  31#include <net/genetlink.h>
  32#include <net/net_namespace.h>
  33#include <net/netns/generic.h>
  34#include <linux/rhashtable.h>
  35#include <linux/nospec.h>
  36#include <linux/virtio.h>
  37#include <linux/virtio_ids.h>
  38#include <linux/virtio_config.h>
  39#include "mac80211_hwsim.h"
  40
  41#define WARN_QUEUE 100
  42#define MAX_QUEUE 200
  43
  44MODULE_AUTHOR("Jouni Malinen");
  45MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
  46MODULE_LICENSE("GPL");
  47
  48static int radios = 2;
  49module_param(radios, int, 0444);
  50MODULE_PARM_DESC(radios, "Number of simulated radios");
  51
  52static int channels = 1;
  53module_param(channels, int, 0444);
  54MODULE_PARM_DESC(channels, "Number of concurrent channels");
  55
  56static bool paged_rx = false;
  57module_param(paged_rx, bool, 0644);
  58MODULE_PARM_DESC(paged_rx, "Use paged SKBs for RX instead of linear ones");
  59
  60static bool rctbl = false;
  61module_param(rctbl, bool, 0444);
  62MODULE_PARM_DESC(rctbl, "Handle rate control table");
  63
  64static bool support_p2p_device = true;
  65module_param(support_p2p_device, bool, 0444);
  66MODULE_PARM_DESC(support_p2p_device, "Support P2P-Device interface type");
  67
  68/**
  69 * enum hwsim_regtest - the type of regulatory tests we offer
  70 *
  71 * These are the different values you can use for the regtest
  72 * module parameter. This is useful to help test world roaming
  73 * and the driver regulatory_hint() call and combinations of these.
  74 * If you want to do specific alpha2 regulatory domain tests simply
  75 * use the userspace regulatory request as that will be respected as
  76 * well without the need of this module parameter. This is designed
  77 * only for testing the driver regulatory request, world roaming
  78 * and all possible combinations.
  79 *
  80 * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
  81 *      this is the default value.
  82 * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
  83 *      hint, only one driver regulatory hint will be sent as such the
  84 *      secondary radios are expected to follow.
  85 * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
  86 *      request with all radios reporting the same regulatory domain.
  87 * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
  88 *      different regulatory domains requests. Expected behaviour is for
  89 *      an intersection to occur but each device will still use their
  90 *      respective regulatory requested domains. Subsequent radios will
  91 *      use the resulting intersection.
  92 * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
  93 *      this by using a custom beacon-capable regulatory domain for the first
  94 *      radio. All other device world roam.
  95 * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
  96 *      domain requests. All radios will adhere to this custom world regulatory
  97 *      domain.
  98 * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
  99 *      domain requests. The first radio will adhere to the first custom world
 100 *      regulatory domain, the second one to the second custom world regulatory
 101 *      domain. All other devices will world roam.
 102 * @HWSIM_REGTEST_STRICT_FOLLOW: Used for testing strict regulatory domain
 103 *      settings, only the first radio will send a regulatory domain request
 104 *      and use strict settings. The rest of the radios are expected to follow.
 105 * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
 106 *      settings. All radios will adhere to this.
 107 * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
 108 *      domain settings, combined with secondary driver regulatory domain
 109 *      settings. The first radio will get a strict regulatory domain setting
 110 *      using the first driver regulatory request and the second radio will use
 111 *      non-strict settings using the second driver regulatory request. All
 112 *      other devices should follow the intersection created between the
 113 *      first two.
 114 * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
 115 *      at least 6 radios for a complete test. We will test in this order:
 116 *      1 - driver custom world regulatory domain
 117 *      2 - second custom world regulatory domain
 118 *      3 - first driver regulatory domain request
 119 *      4 - second driver regulatory domain request
 120 *      5 - strict regulatory domain settings using the third driver regulatory
 121 *          domain request
 122 *      6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
 123 *                 regulatory requests.
 124 */
 125enum hwsim_regtest {
 126        HWSIM_REGTEST_DISABLED = 0,
 127        HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
 128        HWSIM_REGTEST_DRIVER_REG_ALL = 2,
 129        HWSIM_REGTEST_DIFF_COUNTRY = 3,
 130        HWSIM_REGTEST_WORLD_ROAM = 4,
 131        HWSIM_REGTEST_CUSTOM_WORLD = 5,
 132        HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
 133        HWSIM_REGTEST_STRICT_FOLLOW = 7,
 134        HWSIM_REGTEST_STRICT_ALL = 8,
 135        HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
 136        HWSIM_REGTEST_ALL = 10,
 137};
 138
 139/* Set to one of the HWSIM_REGTEST_* values above */
 140static int regtest = HWSIM_REGTEST_DISABLED;
 141module_param(regtest, int, 0444);
 142MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
 143
 144static const char *hwsim_alpha2s[] = {
 145        "FI",
 146        "AL",
 147        "US",
 148        "DE",
 149        "JP",
 150        "AL",
 151};
 152
 153static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
 154        .n_reg_rules = 5,
 155        .alpha2 =  "99",
 156        .reg_rules = {
 157                REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 158                REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
 159                REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
 160                REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
 161                REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
 162        }
 163};
 164
 165static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
 166        .n_reg_rules = 3,
 167        .alpha2 =  "99",
 168        .reg_rules = {
 169                REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
 170                REG_RULE(5725-10, 5850+10, 40, 0, 30,
 171                         NL80211_RRF_NO_IR),
 172                REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
 173        }
 174};
 175
 176static const struct ieee80211_regdomain *hwsim_world_regdom_custom[] = {
 177        &hwsim_world_regdom_custom_01,
 178        &hwsim_world_regdom_custom_02,
 179};
 180
 181struct hwsim_vif_priv {
 182        u32 magic;
 183        u8 bssid[ETH_ALEN];
 184        bool assoc;
 185        bool bcn_en;
 186        u16 aid;
 187};
 188
 189#define HWSIM_VIF_MAGIC 0x69537748
 190
 191static inline void hwsim_check_magic(struct ieee80211_vif *vif)
 192{
 193        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 194        WARN(vp->magic != HWSIM_VIF_MAGIC,
 195             "Invalid VIF (%p) magic %#x, %pM, %d/%d\n",
 196             vif, vp->magic, vif->addr, vif->type, vif->p2p);
 197}
 198
 199static inline void hwsim_set_magic(struct ieee80211_vif *vif)
 200{
 201        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 202        vp->magic = HWSIM_VIF_MAGIC;
 203}
 204
 205static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
 206{
 207        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 208        vp->magic = 0;
 209}
 210
 211struct hwsim_sta_priv {
 212        u32 magic;
 213};
 214
 215#define HWSIM_STA_MAGIC 0x6d537749
 216
 217static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
 218{
 219        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 220        WARN_ON(sp->magic != HWSIM_STA_MAGIC);
 221}
 222
 223static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
 224{
 225        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 226        sp->magic = HWSIM_STA_MAGIC;
 227}
 228
 229static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
 230{
 231        struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
 232        sp->magic = 0;
 233}
 234
 235struct hwsim_chanctx_priv {
 236        u32 magic;
 237};
 238
 239#define HWSIM_CHANCTX_MAGIC 0x6d53774a
 240
 241static inline void hwsim_check_chanctx_magic(struct ieee80211_chanctx_conf *c)
 242{
 243        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
 244        WARN_ON(cp->magic != HWSIM_CHANCTX_MAGIC);
 245}
 246
 247static inline void hwsim_set_chanctx_magic(struct ieee80211_chanctx_conf *c)
 248{
 249        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
 250        cp->magic = HWSIM_CHANCTX_MAGIC;
 251}
 252
 253static inline void hwsim_clear_chanctx_magic(struct ieee80211_chanctx_conf *c)
 254{
 255        struct hwsim_chanctx_priv *cp = (void *)c->drv_priv;
 256        cp->magic = 0;
 257}
 258
 259static unsigned int hwsim_net_id;
 260
 261static DEFINE_IDA(hwsim_netgroup_ida);
 262
 263struct hwsim_net {
 264        int netgroup;
 265        u32 wmediumd;
 266};
 267
 268static inline int hwsim_net_get_netgroup(struct net *net)
 269{
 270        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
 271
 272        return hwsim_net->netgroup;
 273}
 274
 275static inline int hwsim_net_set_netgroup(struct net *net)
 276{
 277        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
 278
 279        hwsim_net->netgroup = ida_simple_get(&hwsim_netgroup_ida,
 280                                             0, 0, GFP_KERNEL);
 281        return hwsim_net->netgroup >= 0 ? 0 : -ENOMEM;
 282}
 283
 284static inline u32 hwsim_net_get_wmediumd(struct net *net)
 285{
 286        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
 287
 288        return hwsim_net->wmediumd;
 289}
 290
 291static inline void hwsim_net_set_wmediumd(struct net *net, u32 portid)
 292{
 293        struct hwsim_net *hwsim_net = net_generic(net, hwsim_net_id);
 294
 295        hwsim_net->wmediumd = portid;
 296}
 297
 298static struct class *hwsim_class;
 299
 300static struct net_device *hwsim_mon; /* global monitor netdev */
 301
 302#define CHAN2G(_freq)  { \
 303        .band = NL80211_BAND_2GHZ, \
 304        .center_freq = (_freq), \
 305        .hw_value = (_freq), \
 306}
 307
 308#define CHAN5G(_freq) { \
 309        .band = NL80211_BAND_5GHZ, \
 310        .center_freq = (_freq), \
 311        .hw_value = (_freq), \
 312}
 313
 314#define CHAN6G(_freq) { \
 315        .band = NL80211_BAND_6GHZ, \
 316        .center_freq = (_freq), \
 317        .hw_value = (_freq), \
 318}
 319
 320static const struct ieee80211_channel hwsim_channels_2ghz[] = {
 321        CHAN2G(2412), /* Channel 1 */
 322        CHAN2G(2417), /* Channel 2 */
 323        CHAN2G(2422), /* Channel 3 */
 324        CHAN2G(2427), /* Channel 4 */
 325        CHAN2G(2432), /* Channel 5 */
 326        CHAN2G(2437), /* Channel 6 */
 327        CHAN2G(2442), /* Channel 7 */
 328        CHAN2G(2447), /* Channel 8 */
 329        CHAN2G(2452), /* Channel 9 */
 330        CHAN2G(2457), /* Channel 10 */
 331        CHAN2G(2462), /* Channel 11 */
 332        CHAN2G(2467), /* Channel 12 */
 333        CHAN2G(2472), /* Channel 13 */
 334        CHAN2G(2484), /* Channel 14 */
 335};
 336
 337static const struct ieee80211_channel hwsim_channels_5ghz[] = {
 338        CHAN5G(5180), /* Channel 36 */
 339        CHAN5G(5200), /* Channel 40 */
 340        CHAN5G(5220), /* Channel 44 */
 341        CHAN5G(5240), /* Channel 48 */
 342
 343        CHAN5G(5260), /* Channel 52 */
 344        CHAN5G(5280), /* Channel 56 */
 345        CHAN5G(5300), /* Channel 60 */
 346        CHAN5G(5320), /* Channel 64 */
 347
 348        CHAN5G(5500), /* Channel 100 */
 349        CHAN5G(5520), /* Channel 104 */
 350        CHAN5G(5540), /* Channel 108 */
 351        CHAN5G(5560), /* Channel 112 */
 352        CHAN5G(5580), /* Channel 116 */
 353        CHAN5G(5600), /* Channel 120 */
 354        CHAN5G(5620), /* Channel 124 */
 355        CHAN5G(5640), /* Channel 128 */
 356        CHAN5G(5660), /* Channel 132 */
 357        CHAN5G(5680), /* Channel 136 */
 358        CHAN5G(5700), /* Channel 140 */
 359
 360        CHAN5G(5745), /* Channel 149 */
 361        CHAN5G(5765), /* Channel 153 */
 362        CHAN5G(5785), /* Channel 157 */
 363        CHAN5G(5805), /* Channel 161 */
 364        CHAN5G(5825), /* Channel 165 */
 365        CHAN5G(5845), /* Channel 169 */
 366
 367        CHAN5G(5855), /* Channel 171 */
 368        CHAN5G(5860), /* Channel 172 */
 369        CHAN5G(5865), /* Channel 173 */
 370        CHAN5G(5870), /* Channel 174 */
 371
 372        CHAN5G(5875), /* Channel 175 */
 373        CHAN5G(5880), /* Channel 176 */
 374        CHAN5G(5885), /* Channel 177 */
 375        CHAN5G(5890), /* Channel 178 */
 376        CHAN5G(5895), /* Channel 179 */
 377        CHAN5G(5900), /* Channel 180 */
 378        CHAN5G(5905), /* Channel 181 */
 379
 380        CHAN5G(5910), /* Channel 182 */
 381        CHAN5G(5915), /* Channel 183 */
 382        CHAN5G(5920), /* Channel 184 */
 383        CHAN5G(5925), /* Channel 185 */
 384};
 385
 386static const struct ieee80211_channel hwsim_channels_6ghz[] = {
 387        CHAN6G(5955), /* Channel 1 */
 388        CHAN6G(5975), /* Channel 5 */
 389        CHAN6G(5995), /* Channel 9 */
 390        CHAN6G(6015), /* Channel 13 */
 391        CHAN6G(6035), /* Channel 17 */
 392        CHAN6G(6055), /* Channel 21 */
 393        CHAN6G(6075), /* Channel 25 */
 394        CHAN6G(6095), /* Channel 29 */
 395        CHAN6G(6115), /* Channel 33 */
 396        CHAN6G(6135), /* Channel 37 */
 397        CHAN6G(6155), /* Channel 41 */
 398        CHAN6G(6175), /* Channel 45 */
 399        CHAN6G(6195), /* Channel 49 */
 400        CHAN6G(6215), /* Channel 53 */
 401        CHAN6G(6235), /* Channel 57 */
 402        CHAN6G(6255), /* Channel 61 */
 403        CHAN6G(6275), /* Channel 65 */
 404        CHAN6G(6295), /* Channel 69 */
 405        CHAN6G(6315), /* Channel 73 */
 406        CHAN6G(6335), /* Channel 77 */
 407        CHAN6G(6355), /* Channel 81 */
 408        CHAN6G(6375), /* Channel 85 */
 409        CHAN6G(6395), /* Channel 89 */
 410        CHAN6G(6415), /* Channel 93 */
 411        CHAN6G(6435), /* Channel 97 */
 412        CHAN6G(6455), /* Channel 181 */
 413        CHAN6G(6475), /* Channel 105 */
 414        CHAN6G(6495), /* Channel 109 */
 415        CHAN6G(6515), /* Channel 113 */
 416        CHAN6G(6535), /* Channel 117 */
 417        CHAN6G(6555), /* Channel 121 */
 418        CHAN6G(6575), /* Channel 125 */
 419        CHAN6G(6595), /* Channel 129 */
 420        CHAN6G(6615), /* Channel 133 */
 421        CHAN6G(6635), /* Channel 137 */
 422        CHAN6G(6655), /* Channel 141 */
 423        CHAN6G(6675), /* Channel 145 */
 424        CHAN6G(6695), /* Channel 149 */
 425        CHAN6G(6715), /* Channel 153 */
 426        CHAN6G(6735), /* Channel 157 */
 427        CHAN6G(6755), /* Channel 161 */
 428        CHAN6G(6775), /* Channel 165 */
 429        CHAN6G(6795), /* Channel 169 */
 430        CHAN6G(6815), /* Channel 173 */
 431        CHAN6G(6835), /* Channel 177 */
 432        CHAN6G(6855), /* Channel 181 */
 433        CHAN6G(6875), /* Channel 185 */
 434        CHAN6G(6895), /* Channel 189 */
 435        CHAN6G(6915), /* Channel 193 */
 436        CHAN6G(6935), /* Channel 197 */
 437        CHAN6G(6955), /* Channel 201 */
 438        CHAN6G(6975), /* Channel 205 */
 439        CHAN6G(6995), /* Channel 209 */
 440        CHAN6G(7015), /* Channel 213 */
 441        CHAN6G(7035), /* Channel 217 */
 442        CHAN6G(7055), /* Channel 221 */
 443        CHAN6G(7075), /* Channel 225 */
 444        CHAN6G(7095), /* Channel 229 */
 445        CHAN6G(7115), /* Channel 233 */
 446};
 447
 448#define NUM_S1G_CHANS_US 51
 449static struct ieee80211_channel hwsim_channels_s1g[NUM_S1G_CHANS_US];
 450
 451static const struct ieee80211_sta_s1g_cap hwsim_s1g_cap = {
 452        .s1g = true,
 453        .cap = { S1G_CAP0_SGI_1MHZ | S1G_CAP0_SGI_2MHZ,
 454                 0,
 455                 0,
 456                 S1G_CAP3_MAX_MPDU_LEN,
 457                 0,
 458                 S1G_CAP5_AMPDU,
 459                 0,
 460                 S1G_CAP7_DUP_1MHZ,
 461                 S1G_CAP8_TWT_RESPOND | S1G_CAP8_TWT_REQUEST,
 462                 0},
 463        .nss_mcs = { 0xfc | 1, /* MCS 7 for 1 SS */
 464        /* RX Highest Supported Long GI Data Rate 0:7 */
 465                     0,
 466        /* RX Highest Supported Long GI Data Rate 0:7 */
 467        /* TX S1G MCS Map 0:6 */
 468                     0xfa,
 469        /* TX S1G MCS Map :7 */
 470        /* TX Highest Supported Long GI Data Rate 0:6 */
 471                     0x80,
 472        /* TX Highest Supported Long GI Data Rate 7:8 */
 473        /* Rx Single spatial stream and S1G-MCS Map for 1MHz */
 474        /* Tx Single spatial stream and S1G-MCS Map for 1MHz */
 475                     0 },
 476};
 477
 478static void hwsim_init_s1g_channels(struct ieee80211_channel *channels)
 479{
 480        int ch, freq;
 481
 482        for (ch = 0; ch < NUM_S1G_CHANS_US; ch++) {
 483                freq = 902000 + (ch + 1) * 500;
 484                channels[ch].band = NL80211_BAND_S1GHZ;
 485                channels[ch].center_freq = KHZ_TO_MHZ(freq);
 486                channels[ch].freq_offset = freq % 1000;
 487                channels[ch].hw_value = ch + 1;
 488        }
 489}
 490
 491static const struct ieee80211_rate hwsim_rates[] = {
 492        { .bitrate = 10 },
 493        { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 494        { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 495        { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
 496        { .bitrate = 60 },
 497        { .bitrate = 90 },
 498        { .bitrate = 120 },
 499        { .bitrate = 180 },
 500        { .bitrate = 240 },
 501        { .bitrate = 360 },
 502        { .bitrate = 480 },
 503        { .bitrate = 540 }
 504};
 505
 506static const u32 hwsim_ciphers[] = {
 507        WLAN_CIPHER_SUITE_WEP40,
 508        WLAN_CIPHER_SUITE_WEP104,
 509        WLAN_CIPHER_SUITE_TKIP,
 510        WLAN_CIPHER_SUITE_CCMP,
 511        WLAN_CIPHER_SUITE_CCMP_256,
 512        WLAN_CIPHER_SUITE_GCMP,
 513        WLAN_CIPHER_SUITE_GCMP_256,
 514        WLAN_CIPHER_SUITE_AES_CMAC,
 515        WLAN_CIPHER_SUITE_BIP_CMAC_256,
 516        WLAN_CIPHER_SUITE_BIP_GMAC_128,
 517        WLAN_CIPHER_SUITE_BIP_GMAC_256,
 518};
 519
 520#define OUI_QCA 0x001374
 521#define QCA_NL80211_SUBCMD_TEST 1
 522enum qca_nl80211_vendor_subcmds {
 523        QCA_WLAN_VENDOR_ATTR_TEST = 8,
 524        QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_TEST
 525};
 526
 527static const struct nla_policy
 528hwsim_vendor_test_policy[QCA_WLAN_VENDOR_ATTR_MAX + 1] = {
 529        [QCA_WLAN_VENDOR_ATTR_MAX] = { .type = NLA_U32 },
 530};
 531
 532static int mac80211_hwsim_vendor_cmd_test(struct wiphy *wiphy,
 533                                          struct wireless_dev *wdev,
 534                                          const void *data, int data_len)
 535{
 536        struct sk_buff *skb;
 537        struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
 538        int err;
 539        u32 val;
 540
 541        err = nla_parse_deprecated(tb, QCA_WLAN_VENDOR_ATTR_MAX, data,
 542                                   data_len, hwsim_vendor_test_policy, NULL);
 543        if (err)
 544                return err;
 545        if (!tb[QCA_WLAN_VENDOR_ATTR_TEST])
 546                return -EINVAL;
 547        val = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_TEST]);
 548        wiphy_dbg(wiphy, "%s: test=%u\n", __func__, val);
 549
 550        /* Send a vendor event as a test. Note that this would not normally be
 551         * done within a command handler, but rather, based on some other
 552         * trigger. For simplicity, this command is used to trigger the event
 553         * here.
 554         *
 555         * event_idx = 0 (index in mac80211_hwsim_vendor_commands)
 556         */
 557        skb = cfg80211_vendor_event_alloc(wiphy, wdev, 100, 0, GFP_KERNEL);
 558        if (skb) {
 559                /* skb_put() or nla_put() will fill up data within
 560                 * NL80211_ATTR_VENDOR_DATA.
 561                 */
 562
 563                /* Add vendor data */
 564                nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 1);
 565
 566                /* Send the event - this will call nla_nest_end() */
 567                cfg80211_vendor_event(skb, GFP_KERNEL);
 568        }
 569
 570        /* Send a response to the command */
 571        skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, 10);
 572        if (!skb)
 573                return -ENOMEM;
 574
 575        /* skb_put() or nla_put() will fill up data within
 576         * NL80211_ATTR_VENDOR_DATA
 577         */
 578        nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_TEST, val + 2);
 579
 580        return cfg80211_vendor_cmd_reply(skb);
 581}
 582
 583static struct wiphy_vendor_command mac80211_hwsim_vendor_commands[] = {
 584        {
 585                .info = { .vendor_id = OUI_QCA,
 586                          .subcmd = QCA_NL80211_SUBCMD_TEST },
 587                .flags = WIPHY_VENDOR_CMD_NEED_NETDEV,
 588                .doit = mac80211_hwsim_vendor_cmd_test,
 589                .policy = hwsim_vendor_test_policy,
 590                .maxattr = QCA_WLAN_VENDOR_ATTR_MAX,
 591        }
 592};
 593
 594/* Advertise support vendor specific events */
 595static const struct nl80211_vendor_cmd_info mac80211_hwsim_vendor_events[] = {
 596        { .vendor_id = OUI_QCA, .subcmd = 1 },
 597};
 598
 599static DEFINE_SPINLOCK(hwsim_radio_lock);
 600static LIST_HEAD(hwsim_radios);
 601static struct rhashtable hwsim_radios_rht;
 602static int hwsim_radio_idx;
 603static int hwsim_radios_generation = 1;
 604
 605static struct platform_driver mac80211_hwsim_driver = {
 606        .driver = {
 607                .name = "mac80211_hwsim",
 608        },
 609};
 610
 611struct mac80211_hwsim_data {
 612        struct list_head list;
 613        struct rhash_head rht;
 614        struct ieee80211_hw *hw;
 615        struct device *dev;
 616        struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
 617        struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
 618        struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
 619        struct ieee80211_channel channels_6ghz[ARRAY_SIZE(hwsim_channels_6ghz)];
 620        struct ieee80211_channel channels_s1g[ARRAY_SIZE(hwsim_channels_s1g)];
 621        struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
 622        struct ieee80211_iface_combination if_combination;
 623        struct ieee80211_iface_limit if_limits[3];
 624        int n_if_limits;
 625
 626        u32 ciphers[ARRAY_SIZE(hwsim_ciphers)];
 627
 628        struct mac_address addresses[2];
 629        struct ieee80211_chanctx_conf *chanctx;
 630        int channels, idx;
 631        bool use_chanctx;
 632        bool destroy_on_close;
 633        u32 portid;
 634        char alpha2[2];
 635        const struct ieee80211_regdomain *regd;
 636
 637        struct ieee80211_channel *tmp_chan;
 638        struct ieee80211_channel *roc_chan;
 639        u32 roc_duration;
 640        struct delayed_work roc_start;
 641        struct delayed_work roc_done;
 642        struct delayed_work hw_scan;
 643        struct cfg80211_scan_request *hw_scan_request;
 644        struct ieee80211_vif *hw_scan_vif;
 645        int scan_chan_idx;
 646        u8 scan_addr[ETH_ALEN];
 647        struct {
 648                struct ieee80211_channel *channel;
 649                unsigned long next_start, start, end;
 650        } survey_data[ARRAY_SIZE(hwsim_channels_2ghz) +
 651                      ARRAY_SIZE(hwsim_channels_5ghz) +
 652                      ARRAY_SIZE(hwsim_channels_6ghz)];
 653
 654        struct ieee80211_channel *channel;
 655        u64 beacon_int  /* beacon interval in us */;
 656        unsigned int rx_filter;
 657        bool started, idle, scanning;
 658        struct mutex mutex;
 659        struct hrtimer beacon_timer;
 660        enum ps_mode {
 661                PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
 662        } ps;
 663        bool ps_poll_pending;
 664        struct dentry *debugfs;
 665
 666        uintptr_t pending_cookie;
 667        struct sk_buff_head pending;    /* packets pending */
 668        /*
 669         * Only radios in the same group can communicate together (the
 670         * channel has to match too). Each bit represents a group. A
 671         * radio can be in more than one group.
 672         */
 673        u64 group;
 674
 675        /* group shared by radios created in the same netns */
 676        int netgroup;
 677        /* wmediumd portid responsible for netgroup of this radio */
 678        u32 wmediumd;
 679
 680        /* difference between this hw's clock and the real clock, in usecs */
 681        s64 tsf_offset;
 682        s64 bcn_delta;
 683        /* absolute beacon transmission time. Used to cover up "tx" delay. */
 684        u64 abs_bcn_ts;
 685
 686        /* Stats */
 687        u64 tx_pkts;
 688        u64 rx_pkts;
 689        u64 tx_bytes;
 690        u64 rx_bytes;
 691        u64 tx_dropped;
 692        u64 tx_failed;
 693};
 694
 695static const struct rhashtable_params hwsim_rht_params = {
 696        .nelem_hint = 2,
 697        .automatic_shrinking = true,
 698        .key_len = ETH_ALEN,
 699        .key_offset = offsetof(struct mac80211_hwsim_data, addresses[1]),
 700        .head_offset = offsetof(struct mac80211_hwsim_data, rht),
 701};
 702
 703struct hwsim_radiotap_hdr {
 704        struct ieee80211_radiotap_header hdr;
 705        __le64 rt_tsft;
 706        u8 rt_flags;
 707        u8 rt_rate;
 708        __le16 rt_channel;
 709        __le16 rt_chbitmask;
 710} __packed;
 711
 712struct hwsim_radiotap_ack_hdr {
 713        struct ieee80211_radiotap_header hdr;
 714        u8 rt_flags;
 715        u8 pad;
 716        __le16 rt_channel;
 717        __le16 rt_chbitmask;
 718} __packed;
 719
 720/* MAC80211_HWSIM netlink family */
 721static struct genl_family hwsim_genl_family;
 722
 723enum hwsim_multicast_groups {
 724        HWSIM_MCGRP_CONFIG,
 725};
 726
 727static const struct genl_multicast_group hwsim_mcgrps[] = {
 728        [HWSIM_MCGRP_CONFIG] = { .name = "config", },
 729};
 730
 731/* MAC80211_HWSIM netlink policy */
 732
 733static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
 734        [HWSIM_ATTR_ADDR_RECEIVER] = NLA_POLICY_ETH_ADDR_COMPAT,
 735        [HWSIM_ATTR_ADDR_TRANSMITTER] = NLA_POLICY_ETH_ADDR_COMPAT,
 736        [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY,
 737                               .len = IEEE80211_MAX_DATA_LEN },
 738        [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 },
 739        [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 },
 740        [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 },
 741        [HWSIM_ATTR_TX_INFO] = { .type = NLA_BINARY,
 742                                 .len = IEEE80211_TX_MAX_RATES *
 743                                        sizeof(struct hwsim_tx_rate)},
 744        [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 },
 745        [HWSIM_ATTR_CHANNELS] = { .type = NLA_U32 },
 746        [HWSIM_ATTR_RADIO_ID] = { .type = NLA_U32 },
 747        [HWSIM_ATTR_REG_HINT_ALPHA2] = { .type = NLA_STRING, .len = 2 },
 748        [HWSIM_ATTR_REG_CUSTOM_REG] = { .type = NLA_U32 },
 749        [HWSIM_ATTR_REG_STRICT_REG] = { .type = NLA_FLAG },
 750        [HWSIM_ATTR_SUPPORT_P2P_DEVICE] = { .type = NLA_FLAG },
 751        [HWSIM_ATTR_USE_CHANCTX] = { .type = NLA_FLAG },
 752        [HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE] = { .type = NLA_FLAG },
 753        [HWSIM_ATTR_RADIO_NAME] = { .type = NLA_STRING },
 754        [HWSIM_ATTR_NO_VIF] = { .type = NLA_FLAG },
 755        [HWSIM_ATTR_FREQ] = { .type = NLA_U32 },
 756        [HWSIM_ATTR_TX_INFO_FLAGS] = { .type = NLA_BINARY },
 757        [HWSIM_ATTR_PERM_ADDR] = NLA_POLICY_ETH_ADDR_COMPAT,
 758        [HWSIM_ATTR_IFTYPE_SUPPORT] = { .type = NLA_U32 },
 759        [HWSIM_ATTR_CIPHER_SUPPORT] = { .type = NLA_BINARY },
 760};
 761
 762#if IS_REACHABLE(CONFIG_VIRTIO)
 763
 764/* MAC80211_HWSIM virtio queues */
 765static struct virtqueue *hwsim_vqs[HWSIM_NUM_VQS];
 766static bool hwsim_virtio_enabled;
 767static DEFINE_SPINLOCK(hwsim_virtio_lock);
 768
 769static void hwsim_virtio_rx_work(struct work_struct *work);
 770static DECLARE_WORK(hwsim_virtio_rx, hwsim_virtio_rx_work);
 771
 772static int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
 773                           struct sk_buff *skb)
 774{
 775        struct scatterlist sg[1];
 776        unsigned long flags;
 777        int err;
 778
 779        spin_lock_irqsave(&hwsim_virtio_lock, flags);
 780        if (!hwsim_virtio_enabled) {
 781                err = -ENODEV;
 782                goto out_free;
 783        }
 784
 785        sg_init_one(sg, skb->head, skb_end_offset(skb));
 786        err = virtqueue_add_outbuf(hwsim_vqs[HWSIM_VQ_TX], sg, 1, skb,
 787                                   GFP_ATOMIC);
 788        if (err)
 789                goto out_free;
 790        virtqueue_kick(hwsim_vqs[HWSIM_VQ_TX]);
 791        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
 792        return 0;
 793
 794out_free:
 795        spin_unlock_irqrestore(&hwsim_virtio_lock, flags);
 796        nlmsg_free(skb);
 797        return err;
 798}
 799#else
 800/* cause a linker error if this ends up being needed */
 801extern int hwsim_tx_virtio(struct mac80211_hwsim_data *data,
 802                           struct sk_buff *skb);
 803#define hwsim_virtio_enabled false
 804#endif
 805
 806static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 807                                    struct sk_buff *skb,
 808                                    struct ieee80211_channel *chan);
 809
 810/* sysfs attributes */
 811static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
 812{
 813        struct mac80211_hwsim_data *data = dat;
 814        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 815        struct sk_buff *skb;
 816        struct ieee80211_pspoll *pspoll;
 817
 818        if (!vp->assoc)
 819                return;
 820
 821        wiphy_dbg(data->hw->wiphy,
 822                  "%s: send PS-Poll to %pM for aid %d\n",
 823                  __func__, vp->bssid, vp->aid);
 824
 825        skb = dev_alloc_skb(sizeof(*pspoll));
 826        if (!skb)
 827                return;
 828        pspoll = skb_put(skb, sizeof(*pspoll));
 829        pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
 830                                            IEEE80211_STYPE_PSPOLL |
 831                                            IEEE80211_FCTL_PM);
 832        pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
 833        memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
 834        memcpy(pspoll->ta, mac, ETH_ALEN);
 835
 836        rcu_read_lock();
 837        mac80211_hwsim_tx_frame(data->hw, skb,
 838                                rcu_dereference(vif->chanctx_conf)->def.chan);
 839        rcu_read_unlock();
 840}
 841
 842static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
 843                                struct ieee80211_vif *vif, int ps)
 844{
 845        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
 846        struct sk_buff *skb;
 847        struct ieee80211_hdr *hdr;
 848
 849        if (!vp->assoc)
 850                return;
 851
 852        wiphy_dbg(data->hw->wiphy,
 853                  "%s: send data::nullfunc to %pM ps=%d\n",
 854                  __func__, vp->bssid, ps);
 855
 856        skb = dev_alloc_skb(sizeof(*hdr));
 857        if (!skb)
 858                return;
 859        hdr = skb_put(skb, sizeof(*hdr) - ETH_ALEN);
 860        hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 861                                         IEEE80211_STYPE_NULLFUNC |
 862                                         IEEE80211_FCTL_TODS |
 863                                         (ps ? IEEE80211_FCTL_PM : 0));
 864        hdr->duration_id = cpu_to_le16(0);
 865        memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
 866        memcpy(hdr->addr2, mac, ETH_ALEN);
 867        memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
 868
 869        rcu_read_lock();
 870        mac80211_hwsim_tx_frame(data->hw, skb,
 871                                rcu_dereference(vif->chanctx_conf)->def.chan);
 872        rcu_read_unlock();
 873}
 874
 875
 876static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
 877                                   struct ieee80211_vif *vif)
 878{
 879        struct mac80211_hwsim_data *data = dat;
 880        hwsim_send_nullfunc(data, mac, vif, 1);
 881}
 882
 883static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
 884                                      struct ieee80211_vif *vif)
 885{
 886        struct mac80211_hwsim_data *data = dat;
 887        hwsim_send_nullfunc(data, mac, vif, 0);
 888}
 889
 890static int hwsim_fops_ps_read(void *dat, u64 *val)
 891{
 892        struct mac80211_hwsim_data *data = dat;
 893        *val = data->ps;
 894        return 0;
 895}
 896
 897static int hwsim_fops_ps_write(void *dat, u64 val)
 898{
 899        struct mac80211_hwsim_data *data = dat;
 900        enum ps_mode old_ps;
 901
 902        if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
 903            val != PS_MANUAL_POLL)
 904                return -EINVAL;
 905
 906        if (val == PS_MANUAL_POLL) {
 907                if (data->ps != PS_ENABLED)
 908                        return -EINVAL;
 909                local_bh_disable();
 910                ieee80211_iterate_active_interfaces_atomic(
 911                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
 912                        hwsim_send_ps_poll, data);
 913                local_bh_enable();
 914                return 0;
 915        }
 916        old_ps = data->ps;
 917        data->ps = val;
 918
 919        local_bh_disable();
 920        if (old_ps == PS_DISABLED && val != PS_DISABLED) {
 921                ieee80211_iterate_active_interfaces_atomic(
 922                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
 923                        hwsim_send_nullfunc_ps, data);
 924        } else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
 925                ieee80211_iterate_active_interfaces_atomic(
 926                        data->hw, IEEE80211_IFACE_ITER_NORMAL,
 927                        hwsim_send_nullfunc_no_ps, data);
 928        }
 929        local_bh_enable();
 930
 931        return 0;
 932}
 933
 934DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
 935                         "%llu\n");
 936
 937static int hwsim_write_simulate_radar(void *dat, u64 val)
 938{
 939        struct mac80211_hwsim_data *data = dat;
 940
 941        ieee80211_radar_detected(data->hw);
 942
 943        return 0;
 944}
 945
 946DEFINE_DEBUGFS_ATTRIBUTE(hwsim_simulate_radar, NULL,
 947                         hwsim_write_simulate_radar, "%llu\n");
 948
 949static int hwsim_fops_group_read(void *dat, u64 *val)
 950{
 951        struct mac80211_hwsim_data *data = dat;
 952        *val = data->group;
 953        return 0;
 954}
 955
 956static int hwsim_fops_group_write(void *dat, u64 val)
 957{
 958        struct mac80211_hwsim_data *data = dat;
 959        data->group = val;
 960        return 0;
 961}
 962
 963DEFINE_DEBUGFS_ATTRIBUTE(hwsim_fops_group,
 964                         hwsim_fops_group_read, hwsim_fops_group_write,
 965                         "%llx\n");
 966
 967static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
 968                                        struct net_device *dev)
 969{
 970        /* TODO: allow packet injection */
 971        dev_kfree_skb(skb);
 972        return NETDEV_TX_OK;
 973}
 974
 975static inline u64 mac80211_hwsim_get_tsf_raw(void)
 976{
 977        return ktime_to_us(ktime_get_real());
 978}
 979
 980static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
 981{
 982        u64 now = mac80211_hwsim_get_tsf_raw();
 983        return cpu_to_le64(now + data->tsf_offset);
 984}
 985
 986static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
 987                                  struct ieee80211_vif *vif)
 988{
 989        struct mac80211_hwsim_data *data = hw->priv;
 990        return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
 991}
 992
 993static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
 994                struct ieee80211_vif *vif, u64 tsf)
 995{
 996        struct mac80211_hwsim_data *data = hw->priv;
 997        u64 now = mac80211_hwsim_get_tsf(hw, vif);
 998        u32 bcn_int = data->beacon_int;
 999        u64 delta = abs(tsf - now);
1000
1001        /* adjust after beaconing with new timestamp at old TBTT */
1002        if (tsf > now) {
1003                data->tsf_offset += delta;
1004                data->bcn_delta = do_div(delta, bcn_int);
1005        } else {
1006                data->tsf_offset -= delta;
1007                data->bcn_delta = -(s64)do_div(delta, bcn_int);
1008        }
1009}
1010
1011static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
1012                                      struct sk_buff *tx_skb,
1013                                      struct ieee80211_channel *chan)
1014{
1015        struct mac80211_hwsim_data *data = hw->priv;
1016        struct sk_buff *skb;
1017        struct hwsim_radiotap_hdr *hdr;
1018        u16 flags, bitrate;
1019        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
1020        struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
1021
1022        if (!txrate)
1023                bitrate = 0;
1024        else
1025                bitrate = txrate->bitrate;
1026
1027        if (!netif_running(hwsim_mon))
1028                return;
1029
1030        skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
1031        if (skb == NULL)
1032                return;
1033
1034        hdr = skb_push(skb, sizeof(*hdr));
1035        hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1036        hdr->hdr.it_pad = 0;
1037        hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1038        hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1039                                          (1 << IEEE80211_RADIOTAP_RATE) |
1040                                          (1 << IEEE80211_RADIOTAP_TSFT) |
1041                                          (1 << IEEE80211_RADIOTAP_CHANNEL));
1042        hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
1043        hdr->rt_flags = 0;
1044        hdr->rt_rate = bitrate / 5;
1045        hdr->rt_channel = cpu_to_le16(chan->center_freq);
1046        flags = IEEE80211_CHAN_2GHZ;
1047        if (txrate && txrate->flags & IEEE80211_RATE_ERP_G)
1048                flags |= IEEE80211_CHAN_OFDM;
1049        else
1050                flags |= IEEE80211_CHAN_CCK;
1051        hdr->rt_chbitmask = cpu_to_le16(flags);
1052
1053        skb->dev = hwsim_mon;
1054        skb_reset_mac_header(skb);
1055        skb->ip_summed = CHECKSUM_UNNECESSARY;
1056        skb->pkt_type = PACKET_OTHERHOST;
1057        skb->protocol = htons(ETH_P_802_2);
1058        memset(skb->cb, 0, sizeof(skb->cb));
1059        netif_rx(skb);
1060}
1061
1062
1063static void mac80211_hwsim_monitor_ack(struct ieee80211_channel *chan,
1064                                       const u8 *addr)
1065{
1066        struct sk_buff *skb;
1067        struct hwsim_radiotap_ack_hdr *hdr;
1068        u16 flags;
1069        struct ieee80211_hdr *hdr11;
1070
1071        if (!netif_running(hwsim_mon))
1072                return;
1073
1074        skb = dev_alloc_skb(100);
1075        if (skb == NULL)
1076                return;
1077
1078        hdr = skb_put(skb, sizeof(*hdr));
1079        hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
1080        hdr->hdr.it_pad = 0;
1081        hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
1082        hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
1083                                          (1 << IEEE80211_RADIOTAP_CHANNEL));
1084        hdr->rt_flags = 0;
1085        hdr->pad = 0;
1086        hdr->rt_channel = cpu_to_le16(chan->center_freq);
1087        flags = IEEE80211_CHAN_2GHZ;
1088        hdr->rt_chbitmask = cpu_to_le16(flags);
1089
1090        hdr11 = skb_put(skb, 10);
1091        hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
1092                                           IEEE80211_STYPE_ACK);
1093        hdr11->duration_id = cpu_to_le16(0);
1094        memcpy(hdr11->addr1, addr, ETH_ALEN);
1095
1096        skb->dev = hwsim_mon;
1097        skb_reset_mac_header(skb);
1098        skb->ip_summed = CHECKSUM_UNNECESSARY;
1099        skb->pkt_type = PACKET_OTHERHOST;
1100        skb->protocol = htons(ETH_P_802_2);
1101        memset(skb->cb, 0, sizeof(skb->cb));
1102        netif_rx(skb);
1103}
1104
1105struct mac80211_hwsim_addr_match_data {
1106        u8 addr[ETH_ALEN];
1107        bool ret;
1108};
1109
1110static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
1111                                     struct ieee80211_vif *vif)
1112{
1113        struct mac80211_hwsim_addr_match_data *md = data;
1114
1115        if (memcmp(mac, md->addr, ETH_ALEN) == 0)
1116                md->ret = true;
1117}
1118
1119static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
1120                                      const u8 *addr)
1121{
1122        struct mac80211_hwsim_addr_match_data md = {
1123                .ret = false,
1124        };
1125
1126        if (data->scanning && memcmp(addr, data->scan_addr, ETH_ALEN) == 0)
1127                return true;
1128
1129        memcpy(md.addr, addr, ETH_ALEN);
1130
1131        ieee80211_iterate_active_interfaces_atomic(data->hw,
1132                                                   IEEE80211_IFACE_ITER_NORMAL,
1133                                                   mac80211_hwsim_addr_iter,
1134                                                   &md);
1135
1136        return md.ret;
1137}
1138
1139static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
1140                           struct sk_buff *skb)
1141{
1142        switch (data->ps) {
1143        case PS_DISABLED:
1144                return true;
1145        case PS_ENABLED:
1146                return false;
1147        case PS_AUTO_POLL:
1148                /* TODO: accept (some) Beacons by default and other frames only
1149                 * if pending PS-Poll has been sent */
1150                return true;
1151        case PS_MANUAL_POLL:
1152                /* Allow unicast frames to own address if there is a pending
1153                 * PS-Poll */
1154                if (data->ps_poll_pending &&
1155                    mac80211_hwsim_addr_match(data, skb->data + 4)) {
1156                        data->ps_poll_pending = false;
1157                        return true;
1158                }
1159                return false;
1160        }
1161
1162        return true;
1163}
1164
1165static int hwsim_unicast_netgroup(struct mac80211_hwsim_data *data,
1166                                  struct sk_buff *skb, int portid)
1167{
1168        struct net *net;
1169        bool found = false;
1170        int res = -ENOENT;
1171
1172        rcu_read_lock();
1173        for_each_net_rcu(net) {
1174                if (data->netgroup == hwsim_net_get_netgroup(net)) {
1175                        res = genlmsg_unicast(net, skb, portid);
1176                        found = true;
1177                        break;
1178                }
1179        }
1180        rcu_read_unlock();
1181
1182        if (!found)
1183                nlmsg_free(skb);
1184
1185        return res;
1186}
1187
1188static void mac80211_hwsim_config_mac_nl(struct ieee80211_hw *hw,
1189                                         const u8 *addr, bool add)
1190{
1191        struct mac80211_hwsim_data *data = hw->priv;
1192        u32 _portid = READ_ONCE(data->wmediumd);
1193        struct sk_buff *skb;
1194        void *msg_head;
1195
1196        if (!_portid && !hwsim_virtio_enabled)
1197                return;
1198
1199        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1200        if (!skb)
1201                return;
1202
1203        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1204                               add ? HWSIM_CMD_ADD_MAC_ADDR :
1205                                     HWSIM_CMD_DEL_MAC_ADDR);
1206        if (!msg_head) {
1207                pr_debug("mac80211_hwsim: problem with msg_head\n");
1208                goto nla_put_failure;
1209        }
1210
1211        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1212                    ETH_ALEN, data->addresses[1].addr))
1213                goto nla_put_failure;
1214
1215        if (nla_put(skb, HWSIM_ATTR_ADDR_RECEIVER, ETH_ALEN, addr))
1216                goto nla_put_failure;
1217
1218        genlmsg_end(skb, msg_head);
1219
1220        if (hwsim_virtio_enabled)
1221                hwsim_tx_virtio(data, skb);
1222        else
1223                hwsim_unicast_netgroup(data, skb, _portid);
1224        return;
1225nla_put_failure:
1226        nlmsg_free(skb);
1227}
1228
1229static inline u16 trans_tx_rate_flags_ieee2hwsim(struct ieee80211_tx_rate *rate)
1230{
1231        u16 result = 0;
1232
1233        if (rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1234                result |= MAC80211_HWSIM_TX_RC_USE_RTS_CTS;
1235        if (rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1236                result |= MAC80211_HWSIM_TX_RC_USE_CTS_PROTECT;
1237        if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1238                result |= MAC80211_HWSIM_TX_RC_USE_SHORT_PREAMBLE;
1239        if (rate->flags & IEEE80211_TX_RC_MCS)
1240                result |= MAC80211_HWSIM_TX_RC_MCS;
1241        if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)
1242                result |= MAC80211_HWSIM_TX_RC_GREEN_FIELD;
1243        if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1244                result |= MAC80211_HWSIM_TX_RC_40_MHZ_WIDTH;
1245        if (rate->flags & IEEE80211_TX_RC_DUP_DATA)
1246                result |= MAC80211_HWSIM_TX_RC_DUP_DATA;
1247        if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
1248                result |= MAC80211_HWSIM_TX_RC_SHORT_GI;
1249        if (rate->flags & IEEE80211_TX_RC_VHT_MCS)
1250                result |= MAC80211_HWSIM_TX_RC_VHT_MCS;
1251        if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1252                result |= MAC80211_HWSIM_TX_RC_80_MHZ_WIDTH;
1253        if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1254                result |= MAC80211_HWSIM_TX_RC_160_MHZ_WIDTH;
1255
1256        return result;
1257}
1258
1259static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
1260                                       struct sk_buff *my_skb,
1261                                       int dst_portid,
1262                                       struct ieee80211_channel *channel)
1263{
1264        struct sk_buff *skb;
1265        struct mac80211_hwsim_data *data = hw->priv;
1266        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data;
1267        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb);
1268        void *msg_head;
1269        unsigned int hwsim_flags = 0;
1270        int i;
1271        struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES];
1272        struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES];
1273        uintptr_t cookie;
1274
1275        if (data->ps != PS_DISABLED)
1276                hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1277        /* If the queue contains MAX_QUEUE skb's drop some */
1278        if (skb_queue_len(&data->pending) >= MAX_QUEUE) {
1279                /* Droping until WARN_QUEUE level */
1280                while (skb_queue_len(&data->pending) >= WARN_QUEUE) {
1281                        ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1282                        data->tx_dropped++;
1283                }
1284        }
1285
1286        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1287        if (skb == NULL)
1288                goto nla_put_failure;
1289
1290        msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
1291                               HWSIM_CMD_FRAME);
1292        if (msg_head == NULL) {
1293                pr_debug("mac80211_hwsim: problem with msg_head\n");
1294                goto nla_put_failure;
1295        }
1296
1297        if (nla_put(skb, HWSIM_ATTR_ADDR_TRANSMITTER,
1298                    ETH_ALEN, data->addresses[1].addr))
1299                goto nla_put_failure;
1300
1301        /* We get the skb->data */
1302        if (nla_put(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data))
1303                goto nla_put_failure;
1304
1305        /* We get the flags for this transmission, and we translate them to
1306           wmediumd flags  */
1307
1308        if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
1309                hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS;
1310
1311        if (info->flags & IEEE80211_TX_CTL_NO_ACK)
1312                hwsim_flags |= HWSIM_TX_CTL_NO_ACK;
1313
1314        if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
1315                goto nla_put_failure;
1316
1317        if (nla_put_u32(skb, HWSIM_ATTR_FREQ, channel->center_freq))
1318                goto nla_put_failure;
1319
1320        /* We get the tx control (rate and retries) info*/
1321
1322        for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
1323                tx_attempts[i].idx = info->status.rates[i].idx;
1324                tx_attempts_flags[i].idx = info->status.rates[i].idx;
1325                tx_attempts[i].count = info->status.rates[i].count;
1326                tx_attempts_flags[i].flags =
1327                                trans_tx_rate_flags_ieee2hwsim(
1328                                                &info->status.rates[i]);
1329        }
1330
1331        if (nla_put(skb, HWSIM_ATTR_TX_INFO,
1332                    sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES,
1333                    tx_attempts))
1334                goto nla_put_failure;
1335
1336        if (nla_put(skb, HWSIM_ATTR_TX_INFO_FLAGS,
1337                    sizeof(struct hwsim_tx_rate_flag) * IEEE80211_TX_MAX_RATES,
1338                    tx_attempts_flags))
1339                goto nla_put_failure;
1340
1341        /* We create a cookie to identify this skb */
1342        data->pending_cookie++;
1343        cookie = data->pending_cookie;
1344        info->rate_driver_data[0] = (void *)cookie;
1345        if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD))
1346                goto nla_put_failure;
1347
1348        genlmsg_end(skb, msg_head);
1349
1350        if (hwsim_virtio_enabled) {
1351                if (hwsim_tx_virtio(data, skb))
1352                        goto err_free_txskb;
1353        } else {
1354                if (hwsim_unicast_netgroup(data, skb, dst_portid))
1355                        goto err_free_txskb;
1356        }
1357
1358        /* Enqueue the packet */
1359        skb_queue_tail(&data->pending, my_skb);
1360        data->tx_pkts++;
1361        data->tx_bytes += my_skb->len;
1362        return;
1363
1364nla_put_failure:
1365        nlmsg_free(skb);
1366err_free_txskb:
1367        pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
1368        ieee80211_free_txskb(hw, my_skb);
1369        data->tx_failed++;
1370}
1371
1372static bool hwsim_chans_compat(struct ieee80211_channel *c1,
1373                               struct ieee80211_channel *c2)
1374{
1375        if (!c1 || !c2)
1376                return false;
1377
1378        return c1->center_freq == c2->center_freq;
1379}
1380
1381struct tx_iter_data {
1382        struct ieee80211_channel *channel;
1383        bool receive;
1384};
1385
1386static void mac80211_hwsim_tx_iter(void *_data, u8 *addr,
1387                                   struct ieee80211_vif *vif)
1388{
1389        struct tx_iter_data *data = _data;
1390
1391        if (!vif->chanctx_conf)
1392                return;
1393
1394        if (!hwsim_chans_compat(data->channel,
1395                                rcu_dereference(vif->chanctx_conf)->def.chan))
1396                return;
1397
1398        data->receive = true;
1399}
1400
1401static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb)
1402{
1403        /*
1404         * To enable this code, #define the HWSIM_RADIOTAP_OUI,
1405         * e.g. like this:
1406         * #define HWSIM_RADIOTAP_OUI "\x02\x00\x00"
1407         * (but you should use a valid OUI, not that)
1408         *
1409         * If anyone wants to 'donate' a radiotap OUI/subns code
1410         * please send a patch removing this #ifdef and changing
1411         * the values accordingly.
1412         */
1413#ifdef HWSIM_RADIOTAP_OUI
1414        struct ieee80211_vendor_radiotap *rtap;
1415
1416        /*
1417         * Note that this code requires the headroom in the SKB
1418         * that was allocated earlier.
1419         */
1420        rtap = skb_push(skb, sizeof(*rtap) + 8 + 4);
1421        rtap->oui[0] = HWSIM_RADIOTAP_OUI[0];
1422        rtap->oui[1] = HWSIM_RADIOTAP_OUI[1];
1423        rtap->oui[2] = HWSIM_RADIOTAP_OUI[2];
1424        rtap->subns = 127;
1425
1426        /*
1427         * Radiotap vendor namespaces can (and should) also be
1428         * split into fields by using the standard radiotap
1429         * presence bitmap mechanism. Use just BIT(0) here for
1430         * the presence bitmap.
1431         */
1432        rtap->present = BIT(0);
1433        /* We have 8 bytes of (dummy) data */
1434        rtap->len = 8;
1435        /* For testing, also require it to be aligned */
1436        rtap->align = 8;
1437        /* And also test that padding works, 4 bytes */
1438        rtap->pad = 4;
1439        /* push the data */
1440        memcpy(rtap->data, "ABCDEFGH", 8);
1441        /* make sure to clear padding, mac80211 doesn't */
1442        memset(rtap->data + 8, 0, 4);
1443
1444        IEEE80211_SKB_RXCB(skb)->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
1445#endif
1446}
1447
1448static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
1449                                          struct sk_buff *skb,
1450                                          struct ieee80211_channel *chan)
1451{
1452        struct mac80211_hwsim_data *data = hw->priv, *data2;
1453        bool ack = false;
1454        struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
1455        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1456        struct ieee80211_rx_status rx_status;
1457        u64 now;
1458
1459        memset(&rx_status, 0, sizeof(rx_status));
1460        rx_status.flag |= RX_FLAG_MACTIME_START;
1461        rx_status.freq = chan->center_freq;
1462        rx_status.freq_offset = chan->freq_offset ? 1 : 0;
1463        rx_status.band = chan->band;
1464        if (info->control.rates[0].flags & IEEE80211_TX_RC_VHT_MCS) {
1465                rx_status.rate_idx =
1466                        ieee80211_rate_get_vht_mcs(&info->control.rates[0]);
1467                rx_status.nss =
1468                        ieee80211_rate_get_vht_nss(&info->control.rates[0]);
1469                rx_status.encoding = RX_ENC_VHT;
1470        } else {
1471                rx_status.rate_idx = info->control.rates[0].idx;
1472                if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
1473                        rx_status.encoding = RX_ENC_HT;
1474        }
1475        if (info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
1476                rx_status.bw = RATE_INFO_BW_40;
1477        else if (info->control.rates[0].flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
1478                rx_status.bw = RATE_INFO_BW_80;
1479        else if (info->control.rates[0].flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
1480                rx_status.bw = RATE_INFO_BW_160;
1481        else
1482                rx_status.bw = RATE_INFO_BW_20;
1483        if (info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
1484                rx_status.enc_flags |= RX_ENC_FLAG_SHORT_GI;
1485        /* TODO: simulate real signal strength (and optional packet loss) */
1486        rx_status.signal = -50;
1487        if (info->control.vif)
1488                rx_status.signal += info->control.vif->bss_conf.txpower;
1489
1490        if (data->ps != PS_DISABLED)
1491                hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1492
1493        /* release the skb's source info */
1494        skb_orphan(skb);
1495        skb_dst_drop(skb);
1496        skb->mark = 0;
1497        skb_ext_reset(skb);
1498        nf_reset_ct(skb);
1499
1500        /*
1501         * Get absolute mactime here so all HWs RX at the "same time", and
1502         * absolute TX time for beacon mactime so the timestamp matches.
1503         * Giving beacons a different mactime than non-beacons looks messy, but
1504         * it helps the Toffset be exact and a ~10us mactime discrepancy
1505         * probably doesn't really matter.
1506         */
1507        if (ieee80211_is_beacon(hdr->frame_control) ||
1508            ieee80211_is_probe_resp(hdr->frame_control)) {
1509                rx_status.boottime_ns = ktime_get_boottime_ns();
1510                now = data->abs_bcn_ts;
1511        } else {
1512                now = mac80211_hwsim_get_tsf_raw();
1513        }
1514
1515        /* Copy skb to all enabled radios that are on the current frequency */
1516        spin_lock(&hwsim_radio_lock);
1517        list_for_each_entry(data2, &hwsim_radios, list) {
1518                struct sk_buff *nskb;
1519                struct tx_iter_data tx_iter_data = {
1520                        .receive = false,
1521                        .channel = chan,
1522                };
1523
1524                if (data == data2)
1525                        continue;
1526
1527                if (!data2->started || (data2->idle && !data2->tmp_chan) ||
1528                    !hwsim_ps_rx_ok(data2, skb))
1529                        continue;
1530
1531                if (!(data->group & data2->group))
1532                        continue;
1533
1534                if (data->netgroup != data2->netgroup)
1535                        continue;
1536
1537                if (!hwsim_chans_compat(chan, data2->tmp_chan) &&
1538                    !hwsim_chans_compat(chan, data2->channel)) {
1539                        ieee80211_iterate_active_interfaces_atomic(
1540                                data2->hw, IEEE80211_IFACE_ITER_NORMAL,
1541                                mac80211_hwsim_tx_iter, &tx_iter_data);
1542                        if (!tx_iter_data.receive)
1543                                continue;
1544                }
1545
1546                /*
1547                 * reserve some space for our vendor and the normal
1548                 * radiotap header, since we're copying anyway
1549                 */
1550                if (skb->len < PAGE_SIZE && paged_rx) {
1551                        struct page *page = alloc_page(GFP_ATOMIC);
1552
1553                        if (!page)
1554                                continue;
1555
1556                        nskb = dev_alloc_skb(128);
1557                        if (!nskb) {
1558                                __free_page(page);
1559                                continue;
1560                        }
1561
1562                        memcpy(page_address(page), skb->data, skb->len);
1563                        skb_add_rx_frag(nskb, 0, page, 0, skb->len, skb->len);
1564                } else {
1565                        nskb = skb_copy(skb, GFP_ATOMIC);
1566                        if (!nskb)
1567                                continue;
1568                }
1569
1570                if (mac80211_hwsim_addr_match(data2, hdr->addr1))
1571                        ack = true;
1572
1573                rx_status.mactime = now + data2->tsf_offset;
1574
1575                memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
1576
1577                mac80211_hwsim_add_vendor_rtap(nskb);
1578
1579                data2->rx_pkts++;
1580                data2->rx_bytes += nskb->len;
1581                ieee80211_rx_irqsafe(data2->hw, nskb);
1582        }
1583        spin_unlock(&hwsim_radio_lock);
1584
1585        return ack;
1586}
1587
1588static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
1589                              struct ieee80211_tx_control *control,
1590                              struct sk_buff *skb)
1591{
1592        struct mac80211_hwsim_data *data = hw->priv;
1593        struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1594        struct ieee80211_hdr *hdr = (void *)skb->data;
1595        struct ieee80211_chanctx_conf *chanctx_conf;
1596        struct ieee80211_channel *channel;
1597        bool ack;
1598        u32 _portid;
1599
1600        if (WARN_ON(skb->len < 10)) {
1601                /* Should not happen; just a sanity check for addr1 use */
1602                ieee80211_free_txskb(hw, skb);
1603                return;
1604        }
1605
1606        if (!data->use_chanctx) {
1607                channel = data->channel;
1608        } else if (txi->hw_queue == 4) {
1609                channel = data->tmp_chan;
1610        } else {
1611                chanctx_conf = rcu_dereference(txi->control.vif->chanctx_conf);
1612                if (chanctx_conf)
1613                        channel = chanctx_conf->def.chan;
1614                else
1615                        channel = NULL;
1616        }
1617
1618        if (WARN(!channel, "TX w/o channel - queue = %d\n", txi->hw_queue)) {
1619                ieee80211_free_txskb(hw, skb);
1620                return;
1621        }
1622
1623        if (data->idle && !data->tmp_chan) {
1624                wiphy_dbg(hw->wiphy, "Trying to TX when idle - reject\n");
1625                ieee80211_free_txskb(hw, skb);
1626                return;
1627        }
1628
1629        if (txi->control.vif)
1630                hwsim_check_magic(txi->control.vif);
1631        if (control->sta)
1632                hwsim_check_sta_magic(control->sta);
1633
1634        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1635                ieee80211_get_tx_rates(txi->control.vif, control->sta, skb,
1636                                       txi->control.rates,
1637                                       ARRAY_SIZE(txi->control.rates));
1638
1639        if (skb->len >= 24 + 8 &&
1640            ieee80211_is_probe_resp(hdr->frame_control)) {
1641                /* fake header transmission time */
1642                struct ieee80211_mgmt *mgmt;
1643                struct ieee80211_rate *txrate;
1644                /* TODO: get MCS */
1645                int bitrate = 100;
1646                u64 ts;
1647
1648                mgmt = (struct ieee80211_mgmt *)skb->data;
1649                txrate = ieee80211_get_tx_rate(hw, txi);
1650                if (txrate)
1651                        bitrate = txrate->bitrate;
1652                ts = mac80211_hwsim_get_tsf_raw();
1653                mgmt->u.probe_resp.timestamp =
1654                        cpu_to_le64(ts + data->tsf_offset +
1655                                    24 * 8 * 10 / bitrate);
1656        }
1657
1658        mac80211_hwsim_monitor_rx(hw, skb, channel);
1659
1660        /* wmediumd mode check */
1661        _portid = READ_ONCE(data->wmediumd);
1662
1663        if (_portid || hwsim_virtio_enabled)
1664                return mac80211_hwsim_tx_frame_nl(hw, skb, _portid, channel);
1665
1666        /* NO wmediumd detected, perfect medium simulation */
1667        data->tx_pkts++;
1668        data->tx_bytes += skb->len;
1669        ack = mac80211_hwsim_tx_frame_no_nl(hw, skb, channel);
1670
1671        if (ack && skb->len >= 16)
1672                mac80211_hwsim_monitor_ack(channel, hdr->addr2);
1673
1674        ieee80211_tx_info_clear_status(txi);
1675
1676        /* frame was transmitted at most favorable rate at first attempt */
1677        txi->control.rates[0].count = 1;
1678        txi->control.rates[1].idx = -1;
1679
1680        if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
1681                txi->flags |= IEEE80211_TX_STAT_ACK;
1682        ieee80211_tx_status_irqsafe(hw, skb);
1683}
1684
1685
1686static int mac80211_hwsim_start(struct ieee80211_hw *hw)
1687{
1688        struct mac80211_hwsim_data *data = hw->priv;
1689        wiphy_dbg(hw->wiphy, "%s\n", __func__);
1690        data->started = true;
1691        return 0;
1692}
1693
1694
1695static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
1696{
1697        struct mac80211_hwsim_data *data = hw->priv;
1698
1699        data->started = false;
1700        hrtimer_cancel(&data->beacon_timer);
1701
1702        while (!skb_queue_empty(&data->pending))
1703                ieee80211_free_txskb(hw, skb_dequeue(&data->pending));
1704
1705        wiphy_dbg(hw->wiphy, "%s\n", __func__);
1706}
1707
1708
1709static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
1710                                        struct ieee80211_vif *vif)
1711{
1712        wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1713                  __func__, ieee80211_vif_type_p2p(vif),
1714                  vif->addr);
1715        hwsim_set_magic(vif);
1716
1717        if (vif->type != NL80211_IFTYPE_MONITOR)
1718                mac80211_hwsim_config_mac_nl(hw, vif->addr, true);
1719
1720        vif->cab_queue = 0;
1721        vif->hw_queue[IEEE80211_AC_VO] = 0;
1722        vif->hw_queue[IEEE80211_AC_VI] = 1;
1723        vif->hw_queue[IEEE80211_AC_BE] = 2;
1724        vif->hw_queue[IEEE80211_AC_BK] = 3;
1725
1726        return 0;
1727}
1728
1729
1730static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
1731                                           struct ieee80211_vif *vif,
1732                                           enum nl80211_iftype newtype,
1733                                           bool newp2p)
1734{
1735        newtype = ieee80211_iftype_p2p(newtype, newp2p);
1736        wiphy_dbg(hw->wiphy,
1737                  "%s (old type=%d, new type=%d, mac_addr=%pM)\n",
1738                  __func__, ieee80211_vif_type_p2p(vif),
1739                    newtype, vif->addr);
1740        hwsim_check_magic(vif);
1741
1742        /*
1743         * interface may change from non-AP to AP in
1744         * which case this needs to be set up again
1745         */
1746        vif->cab_queue = 0;
1747
1748        return 0;
1749}
1750
1751static void mac80211_hwsim_remove_interface(
1752        struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1753{
1754        wiphy_dbg(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
1755                  __func__, ieee80211_vif_type_p2p(vif),
1756                  vif->addr);
1757        hwsim_check_magic(vif);
1758        hwsim_clear_magic(vif);
1759        if (vif->type != NL80211_IFTYPE_MONITOR)
1760                mac80211_hwsim_config_mac_nl(hw, vif->addr, false);
1761}
1762
1763static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
1764                                    struct sk_buff *skb,
1765                                    struct ieee80211_channel *chan)
1766{
1767        struct mac80211_hwsim_data *data = hw->priv;
1768        u32 _pid = READ_ONCE(data->wmediumd);
1769
1770        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
1771                struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
1772                ieee80211_get_tx_rates(txi->control.vif, NULL, skb,
1773                                       txi->control.rates,
1774                                       ARRAY_SIZE(txi->control.rates));
1775        }
1776
1777        mac80211_hwsim_monitor_rx(hw, skb, chan);
1778
1779        if (_pid || hwsim_virtio_enabled)
1780                return mac80211_hwsim_tx_frame_nl(hw, skb, _pid, chan);
1781
1782        data->tx_pkts++;
1783        data->tx_bytes += skb->len;
1784        mac80211_hwsim_tx_frame_no_nl(hw, skb, chan);
1785        dev_kfree_skb(skb);
1786}
1787
1788static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
1789                                     struct ieee80211_vif *vif)
1790{
1791        struct mac80211_hwsim_data *data = arg;
1792        struct ieee80211_hw *hw = data->hw;
1793        struct ieee80211_tx_info *info;
1794        struct ieee80211_rate *txrate;
1795        struct ieee80211_mgmt *mgmt;
1796        struct sk_buff *skb;
1797        /* TODO: get MCS */
1798        int bitrate = 100;
1799
1800        hwsim_check_magic(vif);
1801
1802        if (vif->type != NL80211_IFTYPE_AP &&
1803            vif->type != NL80211_IFTYPE_MESH_POINT &&
1804            vif->type != NL80211_IFTYPE_ADHOC &&
1805            vif->type != NL80211_IFTYPE_OCB)
1806                return;
1807
1808        skb = ieee80211_beacon_get(hw, vif);
1809        if (skb == NULL)
1810                return;
1811        info = IEEE80211_SKB_CB(skb);
1812        if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE))
1813                ieee80211_get_tx_rates(vif, NULL, skb,
1814                                       info->control.rates,
1815                                       ARRAY_SIZE(info->control.rates));
1816
1817        txrate = ieee80211_get_tx_rate(hw, info);
1818        if (txrate)
1819                bitrate = txrate->bitrate;
1820
1821        mgmt = (struct ieee80211_mgmt *) skb->data;
1822        /* fake header transmission time */
1823        data->abs_bcn_ts = mac80211_hwsim_get_tsf_raw();
1824        if (ieee80211_is_s1g_beacon(mgmt->frame_control)) {
1825                struct ieee80211_ext *ext = (void *) mgmt;
1826
1827                ext->u.s1g_beacon.timestamp = cpu_to_le32(data->abs_bcn_ts +
1828                                                          data->tsf_offset +
1829                                                          10 * 8 * 10 /
1830                                                          bitrate);
1831        } else {
1832                mgmt->u.beacon.timestamp = cpu_to_le64(data->abs_bcn_ts +
1833                                                       data->tsf_offset +
1834                                                       24 * 8 * 10 /
1835                                                       bitrate);
1836        }
1837
1838        mac80211_hwsim_tx_frame(hw, skb,
1839                                rcu_dereference(vif->chanctx_conf)->def.chan);
1840
1841        while ((skb = ieee80211_get_buffered_bc(hw, vif)) != NULL) {
1842                mac80211_hwsim_tx_frame(hw, skb,
1843                                rcu_dereference(vif->chanctx_conf)->def.chan);
1844        }
1845
1846        if (vif->csa_active && ieee80211_beacon_cntdwn_is_complete(vif))
1847                ieee80211_csa_finish(vif);
1848}
1849
1850static enum hrtimer_restart
1851mac80211_hwsim_beacon(struct hrtimer *timer)
1852{
1853        struct mac80211_hwsim_data *data =
1854                container_of(timer, struct mac80211_hwsim_data, beacon_timer);
1855        struct ieee80211_hw *hw = data->hw;
1856        u64 bcn_int = data->beacon_int;
1857
1858        if (!data->started)
1859                return HRTIMER_NORESTART;
1860
1861        ieee80211_iterate_active_interfaces_atomic(
1862                hw, IEEE80211_IFACE_ITER_NORMAL,
1863                mac80211_hwsim_beacon_tx, data);
1864
1865        /* beacon at new TBTT + beacon interval */
1866        if (data->bcn_delta) {
1867                bcn_int -= data->bcn_delta;
1868                data->bcn_delta = 0;
1869        }
1870        hrtimer_forward(&data->beacon_timer, hrtimer_get_expires(timer),
1871                        ns_to_ktime(bcn_int * NSEC_PER_USEC));
1872        return HRTIMER_RESTART;
1873}
1874
1875static const char * const hwsim_chanwidths[] = {
1876        [NL80211_CHAN_WIDTH_5] = "ht5",
1877        [NL80211_CHAN_WIDTH_10] = "ht10",
1878        [NL80211_CHAN_WIDTH_20_NOHT] = "noht",
1879        [NL80211_CHAN_WIDTH_20] = "ht20",
1880        [NL80211_CHAN_WIDTH_40] = "ht40",
1881        [NL80211_CHAN_WIDTH_80] = "vht80",
1882        [NL80211_CHAN_WIDTH_80P80] = "vht80p80",
1883        [NL80211_CHAN_WIDTH_160] = "vht160",
1884        [NL80211_CHAN_WIDTH_1] = "1MHz",
1885        [NL80211_CHAN_WIDTH_2] = "2MHz",
1886        [NL80211_CHAN_WIDTH_4] = "4MHz",
1887        [NL80211_CHAN_WIDTH_8] = "8MHz",
1888        [NL80211_CHAN_WIDTH_16] = "16MHz",
1889};
1890
1891static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
1892{
1893        struct mac80211_hwsim_data *data = hw->priv;
1894        struct ieee80211_conf *conf = &hw->conf;
1895        static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
1896                [IEEE80211_SMPS_AUTOMATIC] = "auto",
1897                [IEEE80211_SMPS_OFF] = "off",
1898                [IEEE80211_SMPS_STATIC] = "static",
1899                [IEEE80211_SMPS_DYNAMIC] = "dynamic",
1900        };
1901        int idx;
1902
1903        if (conf->chandef.chan)
1904                wiphy_dbg(hw->wiphy,
1905                          "%s (freq=%d(%d - %d)/%s idle=%d ps=%d smps=%s)\n",
1906                          __func__,
1907                          conf->chandef.chan->center_freq,
1908                          conf->chandef.center_freq1,
1909                          conf->chandef.center_freq2,
1910                          hwsim_chanwidths[conf->chandef.width],
1911                          !!(conf->flags & IEEE80211_CONF_IDLE),
1912                          !!(conf->flags & IEEE80211_CONF_PS),
1913                          smps_modes[conf->smps_mode]);
1914        else
1915                wiphy_dbg(hw->wiphy,
1916                          "%s (freq=0 idle=%d ps=%d smps=%s)\n",
1917                          __func__,
1918                          !!(conf->flags & IEEE80211_CONF_IDLE),
1919                          !!(conf->flags & IEEE80211_CONF_PS),
1920                          smps_modes[conf->smps_mode]);
1921
1922        data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
1923
1924        WARN_ON(conf->chandef.chan && data->use_chanctx);
1925
1926        mutex_lock(&data->mutex);
1927        if (data->scanning && conf->chandef.chan) {
1928                for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1929                        if (data->survey_data[idx].channel == data->channel) {
1930                                data->survey_data[idx].start =
1931                                        data->survey_data[idx].next_start;
1932                                data->survey_data[idx].end = jiffies;
1933                                break;
1934                        }
1935                }
1936
1937                data->channel = conf->chandef.chan;
1938
1939                for (idx = 0; idx < ARRAY_SIZE(data->survey_data); idx++) {
1940                        if (data->survey_data[idx].channel &&
1941                            data->survey_data[idx].channel != data->channel)
1942                                continue;
1943                        data->survey_data[idx].channel = data->channel;
1944                        data->survey_data[idx].next_start = jiffies;
1945                        break;
1946                }
1947        } else {
1948                data->channel = conf->chandef.chan;
1949        }
1950        mutex_unlock(&data->mutex);
1951
1952        if (!data->started || !data->beacon_int)
1953                hrtimer_cancel(&data->beacon_timer);
1954        else if (!hrtimer_is_queued(&data->beacon_timer)) {
1955                u64 tsf = mac80211_hwsim_get_tsf(hw, NULL);
1956                u32 bcn_int = data->beacon_int;
1957                u64 until_tbtt = bcn_int - do_div(tsf, bcn_int);
1958
1959                hrtimer_start(&data->beacon_timer,
1960                              ns_to_ktime(until_tbtt * NSEC_PER_USEC),
1961                              HRTIMER_MODE_REL_SOFT);
1962        }
1963
1964        return 0;
1965}
1966
1967
1968static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
1969                                            unsigned int changed_flags,
1970                                            unsigned int *total_flags,u64 multicast)
1971{
1972        struct mac80211_hwsim_data *data = hw->priv;
1973
1974        wiphy_dbg(hw->wiphy, "%s\n", __func__);
1975
1976        data->rx_filter = 0;
1977        if (*total_flags & FIF_ALLMULTI)
1978                data->rx_filter |= FIF_ALLMULTI;
1979        if (*total_flags & FIF_MCAST_ACTION)
1980                data->rx_filter |= FIF_MCAST_ACTION;
1981
1982        *total_flags = data->rx_filter;
1983}
1984
1985static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
1986                                       struct ieee80211_vif *vif)
1987{
1988        unsigned int *count = data;
1989        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
1990
1991        if (vp->bcn_en)
1992                (*count)++;
1993}
1994
1995static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
1996                                            struct ieee80211_vif *vif,
1997                                            struct ieee80211_bss_conf *info,
1998                                            u32 changed)
1999{
2000        struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
2001        struct mac80211_hwsim_data *data = hw->priv;
2002
2003        hwsim_check_magic(vif);
2004
2005        wiphy_dbg(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
2006                  __func__, changed, vif->addr);
2007
2008        if (changed & BSS_CHANGED_BSSID) {
2009                wiphy_dbg(hw->wiphy, "%s: BSSID changed: %pM\n",
2010                          __func__, info->bssid);
2011                memcpy(vp->bssid, info->bssid, ETH_ALEN);
2012        }
2013
2014        if (changed & BSS_CHANGED_ASSOC) {
2015                wiphy_dbg(hw->wiphy, "  ASSOC: assoc=%d aid=%d\n",
2016                          info->assoc, info->aid);
2017                vp->assoc = info->assoc;
2018                vp->aid = info->aid;
2019        }
2020
2021        if (changed & BSS_CHANGED_BEACON_ENABLED) {
2022                wiphy_dbg(hw->wiphy, "  BCN EN: %d (BI=%u)\n",
2023                          info->enable_beacon, info->beacon_int);
2024                vp->bcn_en = info->enable_beacon;
2025                if (data->started &&
2026                    !hrtimer_is_queued(&data->beacon_timer) &&
2027                    info->enable_beacon) {
2028                        u64 tsf, until_tbtt;
2029                        u32 bcn_int;
2030                        data->beacon_int = info->beacon_int * 1024;
2031                        tsf = mac80211_hwsim_get_tsf(hw, vif);
2032                        bcn_int = data->beacon_int;
2033                        until_tbtt = bcn_int - do_div(tsf, bcn_int);
2034
2035                        hrtimer_start(&data->beacon_timer,
2036                                      ns_to_ktime(until_tbtt * NSEC_PER_USEC),
2037                                      HRTIMER_MODE_REL_SOFT);
2038                } else if (!info->enable_beacon) {
2039                        unsigned int count = 0;
2040                        ieee80211_iterate_active_interfaces_atomic(
2041                                data->hw, IEEE80211_IFACE_ITER_NORMAL,
2042                                mac80211_hwsim_bcn_en_iter, &count);
2043                        wiphy_dbg(hw->wiphy, "  beaconing vifs remaining: %u",
2044                                  count);
2045                        if (count == 0) {
2046                                hrtimer_cancel(&data->beacon_timer);
2047                                data->beacon_int = 0;
2048                        }
2049                }
2050        }
2051
2052        if (changed & BSS_CHANGED_ERP_CTS_PROT) {
2053                wiphy_dbg(hw->wiphy, "  ERP_CTS_PROT: %d\n",
2054                          info->use_cts_prot);
2055        }
2056
2057        if (changed & BSS_CHANGED_ERP_PREAMBLE) {
2058                wiphy_dbg(hw->wiphy, "  ERP_PREAMBLE: %d\n",
2059                          info->use_short_preamble);
2060        }
2061
2062        if (changed & BSS_CHANGED_ERP_SLOT) {
2063                wiphy_dbg(hw->wiphy, "  ERP_SLOT: %d\n", info->use_short_slot);
2064        }
2065
2066        if (changed & BSS_CHANGED_HT) {
2067                wiphy_dbg(hw->wiphy, "  HT: op_mode=0x%x\n",
2068                          info->ht_operation_mode);
2069        }
2070
2071        if (changed & BSS_CHANGED_BASIC_RATES) {
2072                wiphy_dbg(hw->wiphy, "  BASIC_RATES: 0x%llx\n",
2073                          (unsigned long long) info->basic_rates);
2074        }
2075
2076        if (changed & BSS_CHANGED_TXPOWER)
2077                wiphy_dbg(hw->wiphy, "  TX Power: %d dBm\n", info->txpower);
2078}
2079
2080static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
2081                                  struct ieee80211_vif *vif,
2082                                  struct ieee80211_sta *sta)
2083{
2084        hwsim_check_magic(vif);
2085        hwsim_set_sta_magic(sta);
2086
2087        return 0;
2088}
2089
2090static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
2091                                     struct ieee80211_vif *vif,
2092                                     struct ieee80211_sta *sta)
2093{
2094        hwsim_check_magic(vif);
2095        hwsim_clear_sta_magic(sta);
2096
2097        return 0;
2098}
2099
2100static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
2101                                      struct ieee80211_vif *vif,
2102                                      enum sta_notify_cmd cmd,
2103                                      struct ieee80211_sta *sta)
2104{
2105        hwsim_check_magic(vif);
2106
2107        switch (cmd) {
2108        case STA_NOTIFY_SLEEP:
2109        case STA_NOTIFY_AWAKE:
2110                /* TODO: make good use of these flags */
2111                break;
2112        default:
2113                WARN(1, "Invalid sta notify: %d\n", cmd);
2114                break;
2115        }
2116}
2117
2118static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
2119                                  struct ieee80211_sta *sta,
2120                                  bool set)
2121{
2122        hwsim_check_sta_magic(sta);
2123        return 0;
2124}
2125
2126static int mac80211_hwsim_conf_tx(
2127        struct ieee80211_hw *hw,
2128        struct ieee80211_vif *vif, u16 queue,
2129        const struct ieee80211_tx_queue_params *params)
2130{
2131        wiphy_dbg(hw->wiphy,
2132                  "%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
2133                  __func__, queue,
2134                  params->txop, params->cw_min,
2135                  params->cw_max, params->aifs);
2136        return 0;
2137}
2138
2139static int mac80211_hwsim_get_survey(struct ieee80211_hw *hw, int idx,
2140                                     struct survey_info *survey)
2141{
2142        struct mac80211_hwsim_data *hwsim = hw->priv;
2143
2144        if (idx < 0 || idx >= ARRAY_SIZE(hwsim->survey_data))
2145                return -ENOENT;
2146
2147        mutex_lock(&hwsim->mutex);
2148        survey->channel = hwsim->survey_data[idx].channel;
2149        if (!survey->channel) {
2150                mutex_unlock(&hwsim->mutex);
2151                return -ENOENT;
2152        }
2153
2154        /*
2155         * Magically conjured dummy values --- this is only ok for simulated hardware.
2156         *
2157         * A real driver which cannot determine real values noise MUST NOT
2158         * report any, especially not a magically conjured ones :-)
2159         */
2160        survey->filled = SURVEY_INFO_NOISE_DBM |
2161                         SURVEY_INFO_TIME |
2162                         SURVEY_INFO_TIME_BUSY;
2163        survey->noise = -92;
2164        survey->time =
2165                jiffies_to_msecs(hwsim->survey_data[idx].end -
2166                                 hwsim->survey_data[idx].start);
2167        /* report 12.5% of channel time is used */
2168        survey->time_busy = survey->time/8;
2169        mutex_unlock(&hwsim->mutex);
2170
2171        return 0;
2172}
2173
2174#ifdef CONFIG_NL80211_TESTMODE
2175/*
2176 * This section contains example code for using netlink
2177 * attributes with the testmode command in nl80211.
2178 */
2179
2180/* These enums need to be kept in sync with userspace */
2181enum hwsim_testmode_attr {
2182        __HWSIM_TM_ATTR_INVALID = 0,
2183        HWSIM_TM_ATTR_CMD       = 1,
2184        HWSIM_TM_ATTR_PS        = 2,
2185
2186        /* keep last */
2187        __HWSIM_TM_ATTR_AFTER_LAST,
2188        HWSIM_TM_ATTR_MAX       = __HWSIM_TM_ATTR_AFTER_LAST - 1
2189};
2190
2191enum hwsim_testmode_cmd {
2192        HWSIM_TM_CMD_SET_PS             = 0,
2193        HWSIM_TM_CMD_GET_PS             = 1,
2194        HWSIM_TM_CMD_STOP_QUEUES        = 2,
2195        HWSIM_TM_CMD_WAKE_QUEUES        = 3,
2196};
2197
2198static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
2199        [HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
2200        [HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
2201};
2202
2203static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
2204                                       struct ieee80211_vif *vif,
2205                                       void *data, int len)
2206{
2207        struct mac80211_hwsim_data *hwsim = hw->priv;
2208        struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
2209        struct sk_buff *skb;
2210        int err, ps;
2211
2212        err = nla_parse_deprecated(tb, HWSIM_TM_ATTR_MAX, data, len,
2213                                   hwsim_testmode_policy, NULL);
2214        if (err)
2215                return err;
2216
2217        if (!tb[HWSIM_TM_ATTR_CMD])
2218                return -EINVAL;
2219
2220        switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
2221        case HWSIM_TM_CMD_SET_PS:
2222                if (!tb[HWSIM_TM_ATTR_PS])
2223                        return -EINVAL;
2224                ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
2225                return hwsim_fops_ps_write(hwsim, ps);
2226        case HWSIM_TM_CMD_GET_PS:
2227                skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
2228                                                nla_total_size(sizeof(u32)));
2229                if (!skb)
2230                        return -ENOMEM;
2231                if (nla_put_u32(skb, HWSIM_TM_ATTR_PS, hwsim->ps))
2232                        goto nla_put_failure;
2233                return cfg80211_testmode_reply(skb);
2234        case HWSIM_TM_CMD_STOP_QUEUES:
2235                ieee80211_stop_queues(hw);
2236                return 0;
2237        case HWSIM_TM_CMD_WAKE_QUEUES:
2238                ieee80211_wake_queues(hw);
2239                return 0;
2240        default:
2241                return -EOPNOTSUPP;
2242        }
2243
2244 nla_put_failure:
2245        kfree_skb(skb);
2246        return -ENOBUFS;
2247}
2248#endif
2249
2250static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
2251                                       struct ieee80211_vif *vif,
2252                                       struct ieee80211_ampdu_params *params)
2253{
2254        struct ieee80211_sta *sta = params->sta;
2255        enum ieee80211_ampdu_mlme_action action = params->action;
2256        u16 tid = params->tid;
2257
2258        switch (action) {
2259        case IEEE80211_AMPDU_TX_START:
2260                return IEEE80211_AMPDU_TX_START_IMMEDIATE;
2261        case IEEE80211_AMPDU_TX_STOP_CONT:
2262        case IEEE80211_AMPDU_TX_STOP_FLUSH:
2263        case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
2264                ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
2265                break;
2266        case IEEE80211_AMPDU_TX_OPERATIONAL:
2267                break;
2268        case IEEE80211_AMPDU_RX_START:
2269        case IEEE80211_AMPDU_RX_STOP:
2270                break;
2271        default:
2272                return -EOPNOTSUPP;
2273        }
2274
2275        return 0;
2276}
2277
2278static void mac80211_hwsim_flush(struct ieee80211_hw *hw,
2279                                 struct ieee80211_vif *vif,
2280                                 u32 queues, bool drop)
2281{
2282        /* Not implemented, queues only on kernel side */
2283}
2284
2285static void hw_scan_work(struct work_struct *work)
2286{
2287        struct mac80211_hwsim_data *hwsim =
2288                container_of(work, struct mac80211_hwsim_data, hw_scan.work);
2289        struct cfg80211_scan_request *req = hwsim->hw_scan_request;
2290        int dwell, i;
2291
2292        mutex_lock(&hwsim->mutex);
2293        if (hwsim->scan_chan_idx >= req->n_channels) {
2294                struct cfg80211_scan_info info = {
2295                        .aborted = false,
2296                };
2297
2298                wiphy_dbg(hwsim->hw->wiphy, "hw scan complete\n");
2299                ieee80211_scan_completed(hwsim->hw, &info);
2300                hwsim->hw_scan_request = NULL;
2301                hwsim->hw_scan_vif = NULL;
2302                hwsim->tmp_chan = NULL;
2303                mutex_unlock(&hwsim->mutex);
2304                mac80211_hwsim_config_mac_nl(hwsim->hw, hwsim->scan_addr,
2305                                             false);
2306                return;
2307        }
2308
2309        wiphy_dbg(hwsim->hw->wiphy, "hw scan %d MHz\n",
2310                  req->channels[hwsim->scan_chan_idx]->center_freq);
2311
2312        hwsim->tmp_chan = req->channels[hwsim->scan_chan_idx];
2313        if (hwsim->tmp_chan->flags & (IEEE80211_CHAN_NO_IR |
2314                                      IEEE80211_CHAN_RADAR) ||
2315            !req->n_ssids) {
2316                dwell = 120;
2317        } else {
2318                dwell = 30;
2319                /* send probes */
2320                for (i = 0; i < req->n_ssids; i++) {
2321                        struct sk_buff *probe;
2322                        struct ieee80211_mgmt *mgmt;
2323
2324                        probe = ieee80211_probereq_get(hwsim->hw,
2325                                                       hwsim->scan_addr,
2326                                                       req->ssids[i].ssid,
2327                                                       req->ssids[i].ssid_len,
2328                                                       req->ie_len);
2329                        if (!probe)
2330                                continue;
2331
2332                        mgmt = (struct ieee80211_mgmt *) probe->data;
2333                        memcpy(mgmt->da, req->bssid, ETH_ALEN);
2334                        memcpy(mgmt->bssid, req->bssid, ETH_ALEN);
2335
2336                        if (req->ie_len)
2337                                skb_put_data(probe, req->ie, req->ie_len);
2338
2339                        local_bh_disable();
2340                        mac80211_hwsim_tx_frame(hwsim->hw, probe,
2341                                                hwsim->tmp_chan);
2342                        local_bh_enable();
2343                }
2344        }
2345        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan,
2346                                     msecs_to_jiffies(dwell));
2347        hwsim->survey_data[hwsim->scan_chan_idx].channel = hwsim->tmp_chan;
2348        hwsim->survey_data[hwsim->scan_chan_idx].start = jiffies;
2349        hwsim->survey_data[hwsim->scan_chan_idx].end =
2350                jiffies + msecs_to_jiffies(dwell);
2351        hwsim->scan_chan_idx++;
2352        mutex_unlock(&hwsim->mutex);
2353}
2354
2355static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
2356                                  struct ieee80211_vif *vif,
2357                                  struct ieee80211_scan_request *hw_req)
2358{
2359        struct mac80211_hwsim_data *hwsim = hw->priv;
2360        struct cfg80211_scan_request *req = &hw_req->req;
2361
2362        mutex_lock(&hwsim->mutex);
2363        if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2364                mutex_unlock(&hwsim->mutex);
2365                return -EBUSY;
2366        }
2367        hwsim->hw_scan_request = req;
2368        hwsim->hw_scan_vif = vif;
2369        hwsim->scan_chan_idx = 0;
2370        if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR)
2371                get_random_mask_addr(hwsim->scan_addr,
2372                                     hw_req->req.mac_addr,
2373                                     hw_req->req.mac_addr_mask);
2374        else
2375                memcpy(hwsim->scan_addr, vif->addr, ETH_ALEN);
2376        memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2377        mutex_unlock(&hwsim->mutex);
2378
2379        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2380        wiphy_dbg(hw->wiphy, "hwsim hw_scan request\n");
2381
2382        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->hw_scan, 0);
2383
2384        return 0;
2385}
2386
2387static void mac80211_hwsim_cancel_hw_scan(struct ieee80211_hw *hw,
2388                                          struct ieee80211_vif *vif)
2389{
2390        struct mac80211_hwsim_data *hwsim = hw->priv;
2391        struct cfg80211_scan_info info = {
2392                .aborted = true,
2393        };
2394
2395        wiphy_dbg(hw->wiphy, "hwsim cancel_hw_scan\n");
2396
2397        cancel_delayed_work_sync(&hwsim->hw_scan);
2398
2399        mutex_lock(&hwsim->mutex);
2400        ieee80211_scan_completed(hwsim->hw, &info);
2401        hwsim->tmp_chan = NULL;
2402        hwsim->hw_scan_request = NULL;
2403        hwsim->hw_scan_vif = NULL;
2404        mutex_unlock(&hwsim->mutex);
2405}
2406
2407static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw,
2408                                   struct ieee80211_vif *vif,
2409                                   const u8 *mac_addr)
2410{
2411        struct mac80211_hwsim_data *hwsim = hw->priv;
2412
2413        mutex_lock(&hwsim->mutex);
2414
2415        if (hwsim->scanning) {
2416                pr_debug("two hwsim sw_scans detected!\n");
2417                goto out;
2418        }
2419
2420        pr_debug("hwsim sw_scan request, prepping stuff\n");
2421
2422        memcpy(hwsim->scan_addr, mac_addr, ETH_ALEN);
2423        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, true);
2424        hwsim->scanning = true;
2425        memset(hwsim->survey_data, 0, sizeof(hwsim->survey_data));
2426
2427out:
2428        mutex_unlock(&hwsim->mutex);
2429}
2430
2431static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw,
2432                                            struct ieee80211_vif *vif)
2433{
2434        struct mac80211_hwsim_data *hwsim = hw->priv;
2435
2436        mutex_lock(&hwsim->mutex);
2437
2438        pr_debug("hwsim sw_scan_complete\n");
2439        hwsim->scanning = false;
2440        mac80211_hwsim_config_mac_nl(hw, hwsim->scan_addr, false);
2441        eth_zero_addr(hwsim->scan_addr);
2442
2443        mutex_unlock(&hwsim->mutex);
2444}
2445
2446static void hw_roc_start(struct work_struct *work)
2447{
2448        struct mac80211_hwsim_data *hwsim =
2449                container_of(work, struct mac80211_hwsim_data, roc_start.work);
2450
2451        mutex_lock(&hwsim->mutex);
2452
2453        wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC begins\n");
2454        hwsim->tmp_chan = hwsim->roc_chan;
2455        ieee80211_ready_on_channel(hwsim->hw);
2456
2457        ieee80211_queue_delayed_work(hwsim->hw, &hwsim->roc_done,
2458                                     msecs_to_jiffies(hwsim->roc_duration));
2459
2460        mutex_unlock(&hwsim->mutex);
2461}
2462
2463static void hw_roc_done(struct work_struct *work)
2464{
2465        struct mac80211_hwsim_data *hwsim =
2466                container_of(work, struct mac80211_hwsim_data, roc_done.work);
2467
2468        mutex_lock(&hwsim->mutex);
2469        ieee80211_remain_on_channel_expired(hwsim->hw);
2470        hwsim->tmp_chan = NULL;
2471        mutex_unlock(&hwsim->mutex);
2472
2473        wiphy_dbg(hwsim->hw->wiphy, "hwsim ROC expired\n");
2474}
2475
2476static int mac80211_hwsim_roc(struct ieee80211_hw *hw,
2477                              struct ieee80211_vif *vif,
2478                              struct ieee80211_channel *chan,
2479                              int duration,
2480                              enum ieee80211_roc_type type)
2481{
2482        struct mac80211_hwsim_data *hwsim = hw->priv;
2483
2484        mutex_lock(&hwsim->mutex);
2485        if (WARN_ON(hwsim->tmp_chan || hwsim->hw_scan_request)) {
2486                mutex_unlock(&hwsim->mutex);
2487                return -EBUSY;
2488        }
2489
2490        hwsim->roc_chan = chan;
2491        hwsim->roc_duration = duration;
2492        mutex_unlock(&hwsim->mutex);
2493
2494        wiphy_dbg(hw->wiphy, "hwsim ROC (%d MHz, %d ms)\n",
2495                  chan->center_freq, duration);
2496        ieee80211_queue_delayed_work(hw, &hwsim->roc_start, HZ/50);
2497
2498        return 0;
2499}
2500
2501static int mac80211_hwsim_croc(struct ieee80211_hw *hw,
2502                               struct ieee80211_vif *vif)
2503{
2504        struct mac80211_hwsim_data *hwsim = hw->priv;
2505
2506        cancel_delayed_work_sync(&hwsim->roc_start);
2507        cancel_delayed_work_sync(&hwsim->roc_done);
2508
2509        mutex_lock(&hwsim->mutex);
2510        hwsim->tmp_chan = NULL;
2511        mutex_unlock(&hwsim->mutex);
2512
2513        wiphy_dbg(hw->wiphy, "hwsim ROC canceled\n");
2514
2515        return 0;
2516}
2517
2518static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw,
2519                                      struct ieee80211_chanctx_conf *ctx)
2520{
2521        struct mac80211_hwsim_data *hwsim = hw->priv;
2522
2523        mutex_lock(&hwsim->mutex);
2524        hwsim->chanctx = ctx;
2525        mutex_unlock(&hwsim->mutex);
2526        hwsim_set_chanctx_magic(ctx);
2527        wiphy_dbg(hw->wiphy,
2528                  "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2529                  ctx->def.chan->center_freq, ctx->def.width,
2530                  ctx->def.center_freq1, ctx->def.center_freq2);
2531        return 0;
2532}
2533
2534static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw,
2535                                          struct ieee80211_chanctx_conf *ctx)
2536{
2537        struct mac80211_hwsim_data *hwsim = hw->priv;
2538
2539        mutex_lock(&hwsim->mutex);
2540        hwsim->chanctx = NULL;
2541        mutex_unlock(&hwsim->mutex);
2542        wiphy_dbg(hw->wiphy,
2543                  "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2544                  ctx->def.chan->center_freq, ctx->def.width,
2545                  ctx->def.center_freq1, ctx->def.center_freq2);
2546        hwsim_check_chanctx_magic(ctx);
2547        hwsim_clear_chanctx_magic(ctx);
2548}
2549
2550static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw,
2551                                          struct ieee80211_chanctx_conf *ctx,
2552                                          u32 changed)
2553{
2554        struct mac80211_hwsim_data *hwsim = hw->priv;
2555
2556        mutex_lock(&hwsim->mutex);
2557        hwsim->chanctx = ctx;
2558        mutex_unlock(&hwsim->mutex);
2559        hwsim_check_chanctx_magic(ctx);
2560        wiphy_dbg(hw->wiphy,
2561                  "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n",
2562                  ctx->def.chan->center_freq, ctx->def.width,
2563                  ctx->def.center_freq1, ctx->def.center_freq2);
2564}
2565
2566static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw,
2567                                             struct ieee80211_vif *vif,
2568                                             struct ieee80211_chanctx_conf *ctx)
2569{
2570        hwsim_check_magic(vif);
2571        hwsim_check_chanctx_magic(ctx);
2572
2573        return 0;
2574}
2575
2576static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw,
2577                                                struct ieee80211_vif *vif,
2578                                                struct ieee80211_chanctx_conf *ctx)
2579{
2580        hwsim_check_magic(vif);
2581        hwsim_check_chanctx_magic(ctx);
2582}
2583
2584static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = {
2585        "tx_pkts_nic",
2586        "tx_bytes_nic",
2587        "rx_pkts_nic",
2588        "rx_bytes_nic",
2589        "d_tx_dropped",
2590        "d_tx_failed",
2591        "d_ps_mode",
2592        "d_group",
2593};
2594
2595#define MAC80211_HWSIM_SSTATS_LEN ARRAY_SIZE(mac80211_hwsim_gstrings_stats)
2596
2597static void mac80211_hwsim_get_et_strings(struct ieee80211_hw *hw,
2598                                          struct ieee80211_vif *vif,
2599                                          u32 sset, u8 *data)
2600{
2601        if (sset == ETH_SS_STATS)
2602                memcpy(data, *mac80211_hwsim_gstrings_stats,
2603                       sizeof(mac80211_hwsim_gstrings_stats));
2604}
2605
2606static int mac80211_hwsim_get_et_sset_count(struct ieee80211_hw *hw,
2607                                            struct ieee80211_vif *vif, int sset)
2608{
2609        if (sset == ETH_SS_STATS)
2610                return MAC80211_HWSIM_SSTATS_LEN;
2611        return 0;
2612}
2613
2614static void mac80211_hwsim_get_et_stats(struct ieee80211_hw *hw,
2615                                        struct ieee80211_vif *vif,
2616                                        struct ethtool_stats *stats, u64 *data)
2617{
2618        struct mac80211_hwsim_data *ar = hw->priv;
2619        int i = 0;
2620
2621        data[i++] = ar->tx_pkts;
2622        data[i++] = ar->tx_bytes;
2623        data[i++] = ar->rx_pkts;
2624        data[i++] = ar->rx_bytes;
2625        data[i++] = ar->tx_dropped;
2626        data[i++] = ar->tx_failed;
2627        data[i++] = ar->ps;
2628        data[i++] = ar->group;
2629
2630        WARN_ON(i != MAC80211_HWSIM_SSTATS_LEN);
2631}
2632
2633static int mac80211_hwsim_tx_last_beacon(struct ieee80211_hw *hw)
2634{
2635        return 1;
2636}
2637
2638#define HWSIM_COMMON_OPS                                        \
2639        .tx = mac80211_hwsim_tx,                                \
2640        .start = mac80211_hwsim_start,                          \
2641        .stop = mac80211_hwsim_stop,                            \
2642        .add_interface = mac80211_hwsim_add_interface,          \
2643        .change_interface = mac80211_hwsim_change_interface,    \
2644        .remove_interface = mac80211_hwsim_remove_interface,    \
2645        .config = mac80211_hwsim_config,                        \
2646        .configure_filter = mac80211_hwsim_configure_filter,    \
2647        .bss_info_changed = mac80211_hwsim_bss_info_changed,    \
2648        .tx_last_beacon = mac80211_hwsim_tx_last_beacon,        \
2649        .sta_add = mac80211_hwsim_sta_add,                      \
2650        .sta_remove = mac80211_hwsim_sta_remove,                \
2651        .sta_notify = mac80211_hwsim_sta_notify,                \
2652        .set_tim = mac80211_hwsim_set_tim,                      \
2653        .conf_tx = mac80211_hwsim_conf_tx,                      \
2654        .get_survey = mac80211_hwsim_get_survey,                \
2655        CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)      \
2656        .ampdu_action = mac80211_hwsim_ampdu_action,            \
2657        .flush = mac80211_hwsim_flush,                          \
2658        .get_tsf = mac80211_hwsim_get_tsf,                      \
2659        .set_tsf = mac80211_hwsim_set_tsf,                      \
2660        .get_et_sset_count = mac80211_hwsim_get_et_sset_count,  \
2661        .get_et_stats = mac80211_hwsim_get_et_stats,            \
2662        .get_et_strings = mac80211_hwsim_get_et_strings,
2663
2664static const struct ieee80211_ops mac80211_hwsim_ops = {
2665        HWSIM_COMMON_OPS
2666        .sw_scan_start = mac80211_hwsim_sw_scan,
2667        .sw_scan_complete = mac80211_hwsim_sw_scan_complete,
2668};
2669
2670static const struct ieee80211_ops mac80211_hwsim_mchan_ops = {
2671        HWSIM_COMMON_OPS
2672        .hw_scan = mac80211_hwsim_hw_scan,
2673        .cancel_hw_scan = mac80211_hwsim_cancel_hw_scan,
2674        .sw_scan_start = NULL,
2675        .sw_scan_complete = NULL,
2676        .remain_on_channel = mac80211_hwsim_roc,
2677        .cancel_remain_on_channel = mac80211_hwsim_croc,
2678        .add_chanctx = mac80211_hwsim_add_chanctx,
2679        .remove_chanctx = mac80211_hwsim_remove_chanctx,
2680        .change_chanctx = mac80211_hwsim_change_chanctx,
2681        .assign_vif_chanctx = mac80211_hwsim_assign_vif_chanctx,
2682        .unassign_vif_chanctx = mac80211_hwsim_unassign_vif_chanctx,
2683};
2684
2685struct hwsim_new_radio_params {
2686        unsigned int channels;
2687        const char *reg_alpha2;
2688        const struct ieee80211_regdomain *regd;
2689        bool reg_strict;
2690        bool p2p_device;
2691        bool use_chanctx;
2692        bool destroy_on_close;
2693        const char *hwname;
2694        bool no_vif;
2695        const u8 *perm_addr;
2696        u32 iftypes;
2697        u32 *ciphers;
2698        u8 n_ciphers;
2699};
2700
2701static void hwsim_mcast_config_msg(struct sk_buff *mcast_skb,
2702                                   struct genl_info *info)
2703{
2704        if (info)
2705                genl_notify(&hwsim_genl_family, mcast_skb, info,
2706                            HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2707        else
2708                genlmsg_multicast(&hwsim_genl_family, mcast_skb, 0,
2709                                  HWSIM_MCGRP_CONFIG, GFP_KERNEL);
2710}
2711
2712static int append_radio_msg(struct sk_buff *skb, int id,
2713                            struct hwsim_new_radio_params *param)
2714{
2715        int ret;
2716
2717        ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
2718        if (ret < 0)
2719                return ret;
2720
2721        if (param->channels) {
2722                ret = nla_put_u32(skb, HWSIM_ATTR_CHANNELS, param->channels);
2723                if (ret < 0)
2724                        return ret;
2725        }
2726
2727        if (param->reg_alpha2) {
2728                ret = nla_put(skb, HWSIM_ATTR_REG_HINT_ALPHA2, 2,
2729                              param->reg_alpha2);
2730                if (ret < 0)
2731                        return ret;
2732        }
2733
2734        if (param->regd) {
2735                int i;
2736
2737                for (i = 0; i < ARRAY_SIZE(hwsim_world_regdom_custom); i++) {
2738                        if (hwsim_world_regdom_custom[i] != param->regd)
2739                                continue;
2740
2741                        ret = nla_put_u32(skb, HWSIM_ATTR_REG_CUSTOM_REG, i);
2742                        if (ret < 0)
2743                                return ret;
2744                        break;
2745                }
2746        }
2747
2748        if (param->reg_strict) {
2749                ret = nla_put_flag(skb, HWSIM_ATTR_REG_STRICT_REG);
2750                if (ret < 0)
2751                        return ret;
2752        }
2753
2754        if (param->p2p_device) {
2755                ret = nla_put_flag(skb, HWSIM_ATTR_SUPPORT_P2P_DEVICE);
2756                if (ret < 0)
2757                        return ret;
2758        }
2759
2760        if (param->use_chanctx) {
2761                ret = nla_put_flag(skb, HWSIM_ATTR_USE_CHANCTX);
2762                if (ret < 0)
2763                        return ret;
2764        }
2765
2766        if (param->hwname) {
2767                ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME,
2768                              strlen(param->hwname), param->hwname);
2769                if (ret < 0)
2770                        return ret;
2771        }
2772
2773        return 0;
2774}
2775
2776static void hwsim_mcast_new_radio(int id, struct genl_info *info,
2777                                  struct hwsim_new_radio_params *param)
2778{
2779        struct sk_buff *mcast_skb;
2780        void *data;
2781
2782        mcast_skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
2783        if (!mcast_skb)
2784                return;
2785
2786        data = genlmsg_put(mcast_skb, 0, 0, &hwsim_genl_family, 0,
2787                           HWSIM_CMD_NEW_RADIO);
2788        if (!data)
2789                goto out_err;
2790
2791        if (append_radio_msg(mcast_skb, id, param) < 0)
2792                goto out_err;
2793
2794        genlmsg_end(mcast_skb, data);
2795
2796        hwsim_mcast_config_msg(mcast_skb, info);
2797        return;
2798
2799out_err:
2800        nlmsg_free(mcast_skb);
2801}
2802
2803static const struct ieee80211_sband_iftype_data he_capa_2ghz[] = {
2804        {
2805                /* TODO: should we support other types, e.g., P2P?*/
2806                .types_mask = BIT(NL80211_IFTYPE_STATION) |
2807                              BIT(NL80211_IFTYPE_AP),
2808                .he_cap = {
2809                        .has_he = true,
2810                        .he_cap_elem = {
2811                                .mac_cap_info[0] =
2812                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
2813                                .mac_cap_info[1] =
2814                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2815                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2816                                .mac_cap_info[2] =
2817                                        IEEE80211_HE_MAC_CAP2_BSR |
2818                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2819                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
2820                                .mac_cap_info[3] =
2821                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2822                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
2823                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
2824                                .phy_cap_info[1] =
2825                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2826                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2827                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2828                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2829                                .phy_cap_info[2] =
2830                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2831                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2832                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2833                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2834                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2835
2836                                /* Leave all the other PHY capability bytes
2837                                 * unset, as DCM, beam forming, RU and PPE
2838                                 * threshold information are not supported
2839                                 */
2840                        },
2841                        .he_mcs_nss_supp = {
2842                                .rx_mcs_80 = cpu_to_le16(0xfffa),
2843                                .tx_mcs_80 = cpu_to_le16(0xfffa),
2844                                .rx_mcs_160 = cpu_to_le16(0xffff),
2845                                .tx_mcs_160 = cpu_to_le16(0xffff),
2846                                .rx_mcs_80p80 = cpu_to_le16(0xffff),
2847                                .tx_mcs_80p80 = cpu_to_le16(0xffff),
2848                        },
2849                },
2850        },
2851#ifdef CONFIG_MAC80211_MESH
2852        {
2853                /* TODO: should we support other types, e.g., IBSS?*/
2854                .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
2855                .he_cap = {
2856                        .has_he = true,
2857                        .he_cap_elem = {
2858                                .mac_cap_info[0] =
2859                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
2860                                .mac_cap_info[1] =
2861                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2862                                .mac_cap_info[2] =
2863                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
2864                                .mac_cap_info[3] =
2865                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2866                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
2867                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
2868                                .phy_cap_info[1] =
2869                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2870                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2871                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2872                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2873                                .phy_cap_info[2] = 0,
2874
2875                                /* Leave all the other PHY capability bytes
2876                                 * unset, as DCM, beam forming, RU and PPE
2877                                 * threshold information are not supported
2878                                 */
2879                        },
2880                        .he_mcs_nss_supp = {
2881                                .rx_mcs_80 = cpu_to_le16(0xfffa),
2882                                .tx_mcs_80 = cpu_to_le16(0xfffa),
2883                                .rx_mcs_160 = cpu_to_le16(0xffff),
2884                                .tx_mcs_160 = cpu_to_le16(0xffff),
2885                                .rx_mcs_80p80 = cpu_to_le16(0xffff),
2886                                .tx_mcs_80p80 = cpu_to_le16(0xffff),
2887                        },
2888                },
2889        },
2890#endif
2891};
2892
2893static const struct ieee80211_sband_iftype_data he_capa_5ghz[] = {
2894        {
2895                /* TODO: should we support other types, e.g., P2P?*/
2896                .types_mask = BIT(NL80211_IFTYPE_STATION) |
2897                              BIT(NL80211_IFTYPE_AP),
2898                .he_cap = {
2899                        .has_he = true,
2900                        .he_cap_elem = {
2901                                .mac_cap_info[0] =
2902                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
2903                                .mac_cap_info[1] =
2904                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
2905                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2906                                .mac_cap_info[2] =
2907                                        IEEE80211_HE_MAC_CAP2_BSR |
2908                                        IEEE80211_HE_MAC_CAP2_MU_CASCADING |
2909                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
2910                                .mac_cap_info[3] =
2911                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2912                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
2913                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
2914                                .phy_cap_info[0] =
2915                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2916                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2917                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2918                                .phy_cap_info[1] =
2919                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2920                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2921                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2922                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2923                                .phy_cap_info[2] =
2924                                        IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
2925                                        IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
2926                                        IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
2927                                        IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
2928                                        IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO,
2929
2930                                /* Leave all the other PHY capability bytes
2931                                 * unset, as DCM, beam forming, RU and PPE
2932                                 * threshold information are not supported
2933                                 */
2934                        },
2935                        .he_mcs_nss_supp = {
2936                                .rx_mcs_80 = cpu_to_le16(0xfffa),
2937                                .tx_mcs_80 = cpu_to_le16(0xfffa),
2938                                .rx_mcs_160 = cpu_to_le16(0xfffa),
2939                                .tx_mcs_160 = cpu_to_le16(0xfffa),
2940                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2941                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2942                        },
2943                },
2944        },
2945#ifdef CONFIG_MAC80211_MESH
2946        {
2947                /* TODO: should we support other types, e.g., IBSS?*/
2948                .types_mask = BIT(NL80211_IFTYPE_MESH_POINT),
2949                .he_cap = {
2950                        .has_he = true,
2951                        .he_cap_elem = {
2952                                .mac_cap_info[0] =
2953                                        IEEE80211_HE_MAC_CAP0_HTC_HE,
2954                                .mac_cap_info[1] =
2955                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
2956                                .mac_cap_info[2] =
2957                                        IEEE80211_HE_MAC_CAP2_ACK_EN,
2958                                .mac_cap_info[3] =
2959                                        IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
2960                                        IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3,
2961                                .mac_cap_info[4] = IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU,
2962                                .phy_cap_info[0] =
2963                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
2964                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
2965                                        IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G,
2966                                .phy_cap_info[1] =
2967                                        IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
2968                                        IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
2969                                        IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD |
2970                                        IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS,
2971                                .phy_cap_info[2] = 0,
2972
2973                                /* Leave all the other PHY capability bytes
2974                                 * unset, as DCM, beam forming, RU and PPE
2975                                 * threshold information are not supported
2976                                 */
2977                        },
2978                        .he_mcs_nss_supp = {
2979                                .rx_mcs_80 = cpu_to_le16(0xfffa),
2980                                .tx_mcs_80 = cpu_to_le16(0xfffa),
2981                                .rx_mcs_160 = cpu_to_le16(0xfffa),
2982                                .tx_mcs_160 = cpu_to_le16(0xfffa),
2983                                .rx_mcs_80p80 = cpu_to_le16(0xfffa),
2984                                .tx_mcs_80p80 = cpu_to_le16(0xfffa),
2985                        },
2986                },
2987        },
2988#endif
2989};
2990
2991static void mac80211_hwsim_he_capab(struct ieee80211_supported_band *sband)
2992{
2993        u16 n_iftype_data;
2994
2995        if (sband->band == NL80211_BAND_2GHZ) {
2996                n_iftype_data = ARRAY_SIZE(he_capa_2ghz);
2997                sband->iftype_data =
2998                        (struct ieee80211_sband_iftype_data *)he_capa_2ghz;
2999        } else if (sband->band == NL80211_BAND_5GHZ) {
3000                n_iftype_data = ARRAY_SIZE(he_capa_5ghz);
3001                sband->iftype_data =
3002                        (struct ieee80211_sband_iftype_data *)he_capa_5ghz;
3003        } else {
3004                return;
3005        }
3006
3007        sband->n_iftype_data = n_iftype_data;
3008}
3009
3010#ifdef CONFIG_MAC80211_MESH
3011#define HWSIM_MESH_BIT BIT(NL80211_IFTYPE_MESH_POINT)
3012#else
3013#define HWSIM_MESH_BIT 0
3014#endif
3015
3016#define HWSIM_DEFAULT_IF_LIMIT \
3017        (BIT(NL80211_IFTYPE_STATION) | \
3018         BIT(NL80211_IFTYPE_P2P_CLIENT) | \
3019         BIT(NL80211_IFTYPE_AP) | \
3020         BIT(NL80211_IFTYPE_P2P_GO) | \
3021         HWSIM_MESH_BIT)
3022
3023#define HWSIM_IFTYPE_SUPPORT_MASK \
3024        (BIT(NL80211_IFTYPE_STATION) | \
3025         BIT(NL80211_IFTYPE_AP) | \
3026         BIT(NL80211_IFTYPE_P2P_CLIENT) | \
3027         BIT(NL80211_IFTYPE_P2P_GO) | \
3028         BIT(NL80211_IFTYPE_ADHOC) | \
3029         BIT(NL80211_IFTYPE_MESH_POINT) | \
3030         BIT(NL80211_IFTYPE_OCB))
3031
3032static int mac80211_hwsim_new_radio(struct genl_info *info,
3033                                    struct hwsim_new_radio_params *param)
3034{
3035        int err;
3036        u8 addr[ETH_ALEN];
3037        struct mac80211_hwsim_data *data;
3038        struct ieee80211_hw *hw;
3039        enum nl80211_band band;
3040        const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
3041        struct net *net;
3042        int idx, i;
3043        int n_limits = 0;
3044
3045        if (WARN_ON(param->channels > 1 && !param->use_chanctx))
3046                return -EINVAL;
3047
3048        spin_lock_bh(&hwsim_radio_lock);
3049        idx = hwsim_radio_idx++;
3050        spin_unlock_bh(&hwsim_radio_lock);
3051
3052        if (param->use_chanctx)
3053                ops = &mac80211_hwsim_mchan_ops;
3054        hw = ieee80211_alloc_hw_nm(sizeof(*data), ops, param->hwname);
3055        if (!hw) {
3056                pr_debug("mac80211_hwsim: ieee80211_alloc_hw failed\n");
3057                err = -ENOMEM;
3058                goto failed;
3059        }
3060
3061        /* ieee80211_alloc_hw_nm may have used a default name */
3062        param->hwname = wiphy_name(hw->wiphy);
3063
3064        if (info)
3065                net = genl_info_net(info);
3066        else
3067                net = &init_net;
3068        wiphy_net_set(hw->wiphy, net);
3069
3070        data = hw->priv;
3071        data->hw = hw;
3072
3073        data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
3074        if (IS_ERR(data->dev)) {
3075                printk(KERN_DEBUG
3076                       "mac80211_hwsim: device_create failed (%ld)\n",
3077                       PTR_ERR(data->dev));
3078                err = -ENOMEM;
3079                goto failed_drvdata;
3080        }
3081        data->dev->driver = &mac80211_hwsim_driver.driver;
3082        err = device_bind_driver(data->dev);
3083        if (err != 0) {
3084                pr_debug("mac80211_hwsim: device_bind_driver failed (%d)\n",
3085                       err);
3086                goto failed_bind;
3087        }
3088
3089        skb_queue_head_init(&data->pending);
3090
3091        SET_IEEE80211_DEV(hw, data->dev);
3092        if (!param->perm_addr) {
3093                eth_zero_addr(addr);
3094                addr[0] = 0x02;
3095                addr[3] = idx >> 8;
3096                addr[4] = idx;
3097                memcpy(data->addresses[0].addr, addr, ETH_ALEN);
3098                /* Why need here second address ? */
3099                memcpy(data->addresses[1].addr, addr, ETH_ALEN);
3100                data->addresses[1].addr[0] |= 0x40;
3101                hw->wiphy->n_addresses = 2;
3102                hw->wiphy->addresses = data->addresses;
3103                /* possible address clash is checked at hash table insertion */
3104        } else {
3105                memcpy(data->addresses[0].addr, param->perm_addr, ETH_ALEN);
3106                /* compatibility with automatically generated mac addr */
3107                memcpy(data->addresses[1].addr, param->perm_addr, ETH_ALEN);
3108                hw->wiphy->n_addresses = 2;
3109                hw->wiphy->addresses = data->addresses;
3110        }
3111
3112        data->channels = param->channels;
3113        data->use_chanctx = param->use_chanctx;
3114        data->idx = idx;
3115        data->destroy_on_close = param->destroy_on_close;
3116        if (info)
3117                data->portid = info->snd_portid;
3118
3119        /* setup interface limits, only on interface types we support */
3120        if (param->iftypes & BIT(NL80211_IFTYPE_ADHOC)) {
3121                data->if_limits[n_limits].max = 1;
3122                data->if_limits[n_limits].types = BIT(NL80211_IFTYPE_ADHOC);
3123                n_limits++;
3124        }
3125
3126        if (param->iftypes & HWSIM_DEFAULT_IF_LIMIT) {
3127                data->if_limits[n_limits].max = 2048;
3128                /*
3129                 * For this case, we may only support a subset of
3130                 * HWSIM_DEFAULT_IF_LIMIT, therefore we only want to add the
3131                 * bits that both param->iftype & HWSIM_DEFAULT_IF_LIMIT have.
3132                 */
3133                data->if_limits[n_limits].types =
3134                                        HWSIM_DEFAULT_IF_LIMIT & param->iftypes;
3135                n_limits++;
3136        }
3137
3138        if (param->iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
3139                data->if_limits[n_limits].max = 1;
3140                data->if_limits[n_limits].types =
3141                                                BIT(NL80211_IFTYPE_P2P_DEVICE);
3142                n_limits++;
3143        }
3144
3145        if (data->use_chanctx) {
3146                hw->wiphy->max_scan_ssids = 255;
3147                hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
3148                hw->wiphy->max_remain_on_channel_duration = 1000;
3149                data->if_combination.radar_detect_widths = 0;
3150                data->if_combination.num_different_channels = data->channels;
3151                data->chanctx = NULL;
3152        } else {
3153                data->if_combination.num_different_channels = 1;
3154                data->if_combination.radar_detect_widths =
3155                                        BIT(NL80211_CHAN_WIDTH_5) |
3156                                        BIT(NL80211_CHAN_WIDTH_10) |
3157                                        BIT(NL80211_CHAN_WIDTH_20_NOHT) |
3158                                        BIT(NL80211_CHAN_WIDTH_20) |
3159                                        BIT(NL80211_CHAN_WIDTH_40) |
3160                                        BIT(NL80211_CHAN_WIDTH_80) |
3161                                        BIT(NL80211_CHAN_WIDTH_160);
3162        }
3163
3164        if (!n_limits) {
3165                err = -EINVAL;
3166                goto failed_hw;
3167        }
3168
3169        data->if_combination.max_interfaces = 0;
3170        for (i = 0; i < n_limits; i++)
3171                data->if_combination.max_interfaces +=
3172                        data->if_limits[i].max;
3173
3174        data->if_combination.n_limits = n_limits;
3175        data->if_combination.limits = data->if_limits;
3176
3177        /*
3178         * If we actually were asked to support combinations,
3179         * advertise them - if there's only a single thing like
3180         * only IBSS then don't advertise it as combinations.
3181         */
3182        if (data->if_combination.max_interfaces > 1) {
3183                hw->wiphy->iface_combinations = &data->if_combination;
3184                hw->wiphy->n_iface_combinations = 1;
3185        }
3186
3187        if (param->ciphers) {
3188                memcpy(data->ciphers, param->ciphers,
3189                       param->n_ciphers * sizeof(u32));
3190                hw->wiphy->cipher_suites = data->ciphers;
3191                hw->wiphy->n_cipher_suites = param->n_ciphers;
3192        }
3193
3194        INIT_DELAYED_WORK(&data->roc_start, hw_roc_start);
3195        INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
3196        INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
3197
3198        hw->queues = 5;
3199        hw->offchannel_tx_hw_queue = 4;
3200
3201        ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
3202        ieee80211_hw_set(hw, CHANCTX_STA_CSA);
3203        ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES);
3204        ieee80211_hw_set(hw, QUEUE_CONTROL);
3205        ieee80211_hw_set(hw, WANT_MONITOR_VIF);
3206        ieee80211_hw_set(hw, AMPDU_AGGREGATION);
3207        ieee80211_hw_set(hw, MFP_CAPABLE);
3208        ieee80211_hw_set(hw, SIGNAL_DBM);
3209        ieee80211_hw_set(hw, SUPPORTS_PS);
3210        ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
3211        ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
3212        ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
3213        ieee80211_hw_set(hw, TDLS_WIDER_BW);
3214        if (rctbl)
3215                ieee80211_hw_set(hw, SUPPORTS_RC_TABLE);
3216        ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
3217
3218        hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
3219        hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3220                            WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3221                            WIPHY_FLAG_AP_UAPSD |
3222                            WIPHY_FLAG_SUPPORTS_5_10_MHZ |
3223                            WIPHY_FLAG_HAS_CHANNEL_SWITCH;
3224        hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR |
3225                               NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
3226                               NL80211_FEATURE_STATIC_SMPS |
3227                               NL80211_FEATURE_DYNAMIC_SMPS |
3228                               NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
3229        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
3230        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_BEACON_PROTECTION);
3231        wiphy_ext_feature_set(hw->wiphy,
3232                              NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
3233        wiphy_ext_feature_set(hw->wiphy,
3234                              NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
3235
3236        hw->wiphy->interface_modes = param->iftypes;
3237
3238        /* ask mac80211 to reserve space for magic */
3239        hw->vif_data_size = sizeof(struct hwsim_vif_priv);
3240        hw->sta_data_size = sizeof(struct hwsim_sta_priv);
3241        hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
3242
3243        memcpy(data->channels_2ghz, hwsim_channels_2ghz,
3244                sizeof(hwsim_channels_2ghz));
3245        memcpy(data->channels_5ghz, hwsim_channels_5ghz,
3246                sizeof(hwsim_channels_5ghz));
3247        memcpy(data->channels_6ghz, hwsim_channels_6ghz,
3248                sizeof(hwsim_channels_6ghz));
3249        memcpy(data->channels_s1g, hwsim_channels_s1g,
3250               sizeof(hwsim_channels_s1g));
3251        memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
3252
3253        for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
3254                struct ieee80211_supported_band *sband = &data->bands[band];
3255
3256                sband->band = band;
3257
3258                switch (band) {
3259                case NL80211_BAND_2GHZ:
3260                        sband->channels = data->channels_2ghz;
3261                        sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
3262                        sband->bitrates = data->rates;
3263                        sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
3264                        break;
3265                case NL80211_BAND_5GHZ:
3266                        sband->channels = data->channels_5ghz;
3267                        sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
3268                        sband->bitrates = data->rates + 4;
3269                        sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
3270
3271                        sband->vht_cap.vht_supported = true;
3272                        sband->vht_cap.cap =
3273                                IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
3274                                IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
3275                                IEEE80211_VHT_CAP_RXLDPC |
3276                                IEEE80211_VHT_CAP_SHORT_GI_80 |
3277                                IEEE80211_VHT_CAP_SHORT_GI_160 |
3278                                IEEE80211_VHT_CAP_TXSTBC |
3279                                IEEE80211_VHT_CAP_RXSTBC_4 |
3280                                IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
3281                        sband->vht_cap.vht_mcs.rx_mcs_map =
3282                                cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
3283                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
3284                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
3285                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 6 |
3286                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 8 |
3287                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
3288                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
3289                                            IEEE80211_VHT_MCS_SUPPORT_0_9 << 14);
3290                        sband->vht_cap.vht_mcs.tx_mcs_map =
3291                                sband->vht_cap.vht_mcs.rx_mcs_map;
3292                        break;
3293                case NL80211_BAND_S1GHZ:
3294                        memcpy(&sband->s1g_cap, &hwsim_s1g_cap,
3295                               sizeof(sband->s1g_cap));
3296                        sband->channels = data->channels_s1g;
3297                        sband->n_channels = ARRAY_SIZE(hwsim_channels_s1g);
3298                        break;
3299                default:
3300                        continue;
3301                }
3302
3303                sband->ht_cap.ht_supported = true;
3304                sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
3305                                    IEEE80211_HT_CAP_GRN_FLD |
3306                                    IEEE80211_HT_CAP_SGI_20 |
3307                                    IEEE80211_HT_CAP_SGI_40 |
3308                                    IEEE80211_HT_CAP_DSSSCCK40;
3309                sband->ht_cap.ampdu_factor = 0x3;
3310                sband->ht_cap.ampdu_density = 0x6;
3311                memset(&sband->ht_cap.mcs, 0,
3312                       sizeof(sband->ht_cap.mcs));
3313                sband->ht_cap.mcs.rx_mask[0] = 0xff;
3314                sband->ht_cap.mcs.rx_mask[1] = 0xff;
3315                sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
3316
3317                mac80211_hwsim_he_capab(sband);
3318
3319                hw->wiphy->bands[band] = sband;
3320        }
3321
3322        /* By default all radios belong to the first group */
3323        data->group = 1;
3324        mutex_init(&data->mutex);
3325
3326        data->netgroup = hwsim_net_get_netgroup(net);
3327        data->wmediumd = hwsim_net_get_wmediumd(net);
3328
3329        /* Enable frame retransmissions for lossy channels */
3330        hw->max_rates = 4;
3331        hw->max_rate_tries = 11;
3332
3333        hw->wiphy->vendor_commands = mac80211_hwsim_vendor_commands;
3334        hw->wiphy->n_vendor_commands =
3335                ARRAY_SIZE(mac80211_hwsim_vendor_commands);
3336        hw->wiphy->vendor_events = mac80211_hwsim_vendor_events;
3337        hw->wiphy->n_vendor_events = ARRAY_SIZE(mac80211_hwsim_vendor_events);
3338
3339        if (param->reg_strict)
3340                hw->wiphy->regulatory_flags |= REGULATORY_STRICT_REG;
3341        if (param->regd) {
3342                data->regd = param->regd;
3343                hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
3344                wiphy_apply_custom_regulatory(hw->wiphy, param->regd);
3345                /* give the regulatory workqueue a chance to run */
3346                schedule_timeout_interruptible(1);
3347        }
3348
3349        if (param->no_vif)
3350                ieee80211_hw_set(hw, NO_AUTO_VIF);
3351
3352        wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
3353
3354        hrtimer_init(&data->beacon_timer, CLOCK_MONOTONIC,
3355                     HRTIMER_MODE_ABS_SOFT);
3356        data->beacon_timer.function = mac80211_hwsim_beacon;
3357
3358        err = ieee80211_register_hw(hw);
3359        if (err < 0) {
3360                pr_debug("mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
3361                       err);
3362                goto failed_hw;
3363        }
3364
3365        wiphy_dbg(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
3366
3367        if (param->reg_alpha2) {
3368                data->alpha2[0] = param->reg_alpha2[0];
3369                data->alpha2[1] = param->reg_alpha2[1];
3370                regulatory_hint(hw->wiphy, param->reg_alpha2);
3371        }
3372
3373        data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
3374        debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
3375        debugfs_create_file("group", 0666, data->debugfs, data,
3376                            &hwsim_fops_group);
3377        if (!data->use_chanctx)
3378                debugfs_create_file("dfs_simulate_radar", 0222,
3379                                    data->debugfs,
3380                                    data, &hwsim_simulate_radar);
3381
3382        spin_lock_bh(&hwsim_radio_lock);
3383        err = rhashtable_insert_fast(&hwsim_radios_rht, &data->rht,
3384                                     hwsim_rht_params);
3385        if (err < 0) {
3386                if (info) {
3387                        GENL_SET_ERR_MSG(info, "perm addr already present");
3388                        NL_SET_BAD_ATTR(info->extack,
3389                                        info->attrs[HWSIM_ATTR_PERM_ADDR]);
3390                }
3391                spin_unlock_bh(&hwsim_radio_lock);
3392                goto failed_final_insert;
3393        }
3394
3395        list_add_tail(&data->list, &hwsim_radios);
3396        hwsim_radios_generation++;
3397        spin_unlock_bh(&hwsim_radio_lock);
3398
3399        hwsim_mcast_new_radio(idx, info, param);
3400
3401        return idx;
3402
3403failed_final_insert:
3404        debugfs_remove_recursive(data->debugfs);
3405        ieee80211_unregister_hw(data->hw);
3406failed_hw:
3407        device_release_driver(data->dev);
3408failed_bind:
3409        device_unregister(data->dev);
3410failed_drvdata:
3411        ieee80211_free_hw(hw);
3412failed:
3413        return err;
3414}
3415
3416static void hwsim_mcast_del_radio(int id, const char *hwname,
3417                                  struct genl_info *info)
3418{
3419        struct sk_buff *skb;
3420        void *data;
3421        int ret;
3422
3423        skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
3424        if (!skb)
3425                return;
3426
3427        data = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0,
3428                           HWSIM_CMD_DEL_RADIO);
3429        if (!data)
3430                goto error;
3431
3432        ret = nla_put_u32(skb, HWSIM_ATTR_RADIO_ID, id);
3433        if (ret < 0)
3434                goto error;
3435
3436        ret = nla_put(skb, HWSIM_ATTR_RADIO_NAME, strlen(hwname),
3437                      hwname);
3438        if (ret < 0)
3439                goto error;
3440
3441        genlmsg_end(skb, data);
3442
3443        hwsim_mcast_config_msg(skb, info);
3444
3445        return;
3446
3447error:
3448        nlmsg_free(skb);
3449}
3450
3451static void mac80211_hwsim_del_radio(struct mac80211_hwsim_data *data,
3452                                     const char *hwname,
3453                                     struct genl_info *info)
3454{
3455        hwsim_mcast_del_radio(data->idx, hwname, info);
3456        debugfs_remove_recursive(data->debugfs);
3457        ieee80211_unregister_hw(data->hw);
3458        device_release_driver(data->dev);
3459        device_unregister(data->dev);
3460        ieee80211_free_hw(data->hw);
3461}
3462
3463static int mac80211_hwsim_get_radio(struct sk_buff *skb,
3464                                    struct mac80211_hwsim_data *data,
3465                                    u32 portid, u32 seq,
3466                                    struct netlink_callback *cb, int flags)
3467{
3468        void *hdr;
3469        struct hwsim_new_radio_params param = { };
3470        int res = -EMSGSIZE;
3471
3472        hdr = genlmsg_put(skb, portid, seq, &hwsim_genl_family, flags,
3473                          HWSIM_CMD_GET_RADIO);
3474        if (!hdr)
3475                return -EMSGSIZE;
3476
3477        if (cb)
3478                genl_dump_check_consistent(cb, hdr);
3479
3480        if (data->alpha2[0] && data->alpha2[1])
3481                param.reg_alpha2 = data->alpha2;
3482
3483        param.reg_strict = !!(data->hw->wiphy->regulatory_flags &
3484                                        REGULATORY_STRICT_REG);
3485        param.p2p_device = !!(data->hw->wiphy->interface_modes &
3486                                        BIT(NL80211_IFTYPE_P2P_DEVICE));
3487        param.use_chanctx = data->use_chanctx;
3488        param.regd = data->regd;
3489        param.channels = data->channels;
3490        param.hwname = wiphy_name(data->hw->wiphy);
3491
3492        res = append_radio_msg(skb, data->idx, &param);
3493        if (res < 0)
3494                goto out_err;
3495
3496        genlmsg_end(skb, hdr);
3497        return 0;
3498
3499out_err:
3500        genlmsg_cancel(skb, hdr);
3501        return res;
3502}
3503
3504static void mac80211_hwsim_free(void)
3505{
3506        struct mac80211_hwsim_data *data;
3507
3508        spin_lock_bh(&hwsim_radio_lock);
3509        while ((data = list_first_entry_or_null(&hwsim_radios,
3510                                                struct mac80211_hwsim_data,
3511                                                list))) {
3512                list_del(&data->list);
3513                spin_unlock_bh(&hwsim_radio_lock);
3514                mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3515                                         NULL);
3516                spin_lock_bh(&hwsim_radio_lock);
3517        }
3518        spin_unlock_bh(&hwsim_radio_lock);
3519        class_destroy(hwsim_class);
3520}
3521
3522static const struct net_device_ops hwsim_netdev_ops = {
3523        .ndo_start_xmit         = hwsim_mon_xmit,
3524        .ndo_set_mac_address    = eth_mac_addr,
3525        .ndo_validate_addr      = eth_validate_addr,
3526};
3527
3528static void hwsim_mon_setup(struct net_device *dev)
3529{
3530        dev->netdev_ops = &hwsim_netdev_ops;
3531        dev->needs_free_netdev = true;
3532        ether_setup(dev);
3533        dev->priv_flags |= IFF_NO_QUEUE;
3534        dev->type = ARPHRD_IEEE80211_RADIOTAP;
3535        eth_zero_addr(dev->dev_addr);
3536        dev->dev_addr[0] = 0x12;
3537}
3538
3539static struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr(const u8 *addr)
3540{
3541        return rhashtable_lookup_fast(&hwsim_radios_rht,
3542                                      addr,
3543                                      hwsim_rht_params);
3544}
3545
3546static void hwsim_register_wmediumd(struct net *net, u32 portid)
3547{
3548        struct mac80211_hwsim_data *data;
3549
3550        hwsim_net_set_wmediumd(net, portid);
3551
3552        spin_lock_bh(&hwsim_radio_lock);
3553        list_for_each_entry(data, &hwsim_radios, list) {
3554                if (data->netgroup == hwsim_net_get_netgroup(net))
3555                        data->wmediumd = portid;
3556        }
3557        spin_unlock_bh(&hwsim_radio_lock);
3558}
3559
3560static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
3561                                           struct genl_info *info)
3562{
3563
3564        struct ieee80211_hdr *hdr;
3565        struct mac80211_hwsim_data *data2;
3566        struct ieee80211_tx_info *txi;
3567        struct hwsim_tx_rate *tx_attempts;
3568        u64 ret_skb_cookie;
3569        struct sk_buff *skb, *tmp;
3570        const u8 *src;
3571        unsigned int hwsim_flags;
3572        int i;
3573        bool found = false;
3574
3575        if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] ||
3576            !info->attrs[HWSIM_ATTR_FLAGS] ||
3577            !info->attrs[HWSIM_ATTR_COOKIE] ||
3578            !info->attrs[HWSIM_ATTR_SIGNAL] ||
3579            !info->attrs[HWSIM_ATTR_TX_INFO])
3580                goto out;
3581
3582        src = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]);
3583        hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]);
3584        ret_skb_cookie = nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]);
3585
3586        data2 = get_hwsim_data_ref_from_addr(src);
3587        if (!data2)
3588                goto out;
3589
3590        if (!hwsim_virtio_enabled) {
3591                if (hwsim_net_get_netgroup(genl_info_net(info)) !=
3592                    data2->netgroup)
3593                        goto out;
3594
3595                if (info->snd_portid != data2->wmediumd)
3596                        goto out;
3597        }
3598
3599        /* look for the skb matching the cookie passed back from user */
3600        skb_queue_walk_safe(&data2->pending, skb, tmp) {
3601                u64 skb_cookie;
3602
3603                txi = IEEE80211_SKB_CB(skb);
3604                skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
3605
3606                if (skb_cookie == ret_skb_cookie) {
3607                        skb_unlink(skb, &data2->pending);
3608                        found = true;
3609                        break;
3610                }
3611        }
3612
3613        /* not found */
3614        if (!found)
3615                goto out;
3616
3617        /* Tx info received because the frame was broadcasted on user space,
3618         so we get all the necessary info: tx attempts and skb control buff */
3619
3620        tx_attempts = (struct hwsim_tx_rate *)nla_data(
3621                       info->attrs[HWSIM_ATTR_TX_INFO]);
3622
3623        /* now send back TX status */
3624        txi = IEEE80211_SKB_CB(skb);
3625
3626        ieee80211_tx_info_clear_status(txi);
3627
3628        for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
3629                txi->status.rates[i].idx = tx_attempts[i].idx;
3630                txi->status.rates[i].count = tx_attempts[i].count;
3631        }
3632
3633        txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3634
3635        if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) &&
3636           (hwsim_flags & HWSIM_TX_STAT_ACK)) {
3637                if (skb->len >= 16) {
3638                        hdr = (struct ieee80211_hdr *) skb->data;
3639                        mac80211_hwsim_monitor_ack(data2->channel,
3640                                                   hdr->addr2);
3641                }
3642                txi->flags |= IEEE80211_TX_STAT_ACK;
3643        }
3644        ieee80211_tx_status_irqsafe(data2->hw, skb);
3645        return 0;
3646out:
3647        return -EINVAL;
3648
3649}
3650
3651static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
3652                                          struct genl_info *info)
3653{
3654        struct mac80211_hwsim_data *data2;
3655        struct ieee80211_rx_status rx_status;
3656        struct ieee80211_hdr *hdr;
3657        const u8 *dst;
3658        int frame_data_len;
3659        void *frame_data;
3660        struct sk_buff *skb = NULL;
3661        struct ieee80211_channel *channel = NULL;
3662
3663        if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
3664            !info->attrs[HWSIM_ATTR_FRAME] ||
3665            !info->attrs[HWSIM_ATTR_RX_RATE] ||
3666            !info->attrs[HWSIM_ATTR_SIGNAL])
3667                goto out;
3668
3669        dst = (void *)nla_data(info->attrs[HWSIM_ATTR_ADDR_RECEIVER]);
3670        frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]);
3671        frame_data = (void *)nla_data(info->attrs[HWSIM_ATTR_FRAME]);
3672
3673        /* Allocate new skb here */
3674        skb = alloc_skb(frame_data_len, GFP_KERNEL);
3675        if (skb == NULL)
3676                goto err;
3677
3678        if (frame_data_len > IEEE80211_MAX_DATA_LEN)
3679                goto err;
3680
3681        /* Copy the data */
3682        skb_put_data(skb, frame_data, frame_data_len);
3683
3684        data2 = get_hwsim_data_ref_from_addr(dst);
3685        if (!data2)
3686                goto out;
3687
3688        if (data2->use_chanctx) {
3689                if (data2->tmp_chan)
3690                        channel = data2->tmp_chan;
3691                else if (data2->chanctx)
3692                        channel = data2->chanctx->def.chan;
3693        } else {
3694                channel = data2->channel;
3695        }
3696        if (!channel)
3697                goto out;
3698
3699        if (!hwsim_virtio_enabled) {
3700                if (hwsim_net_get_netgroup(genl_info_net(info)) !=
3701                    data2->netgroup)
3702                        goto out;
3703
3704                if (info->snd_portid != data2->wmediumd)
3705                        goto out;
3706        }
3707
3708        /* check if radio is configured properly */
3709
3710        if ((data2->idle && !data2->tmp_chan) || !data2->started)
3711                goto out;
3712
3713        /* A frame is received from user space */
3714        memset(&rx_status, 0, sizeof(rx_status));
3715        if (info->attrs[HWSIM_ATTR_FREQ]) {
3716                /* throw away off-channel packets, but allow both the temporary
3717                 * ("hw" scan/remain-on-channel) and regular channel, since the
3718                 * internal datapath also allows this
3719                 */
3720                mutex_lock(&data2->mutex);
3721                rx_status.freq = nla_get_u32(info->attrs[HWSIM_ATTR_FREQ]);
3722
3723                if (rx_status.freq != channel->center_freq) {
3724                        mutex_unlock(&data2->mutex);
3725                        goto out;
3726                }
3727                mutex_unlock(&data2->mutex);
3728        } else {
3729                rx_status.freq = channel->center_freq;
3730        }
3731
3732        rx_status.band = channel->band;
3733        rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
3734        rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
3735
3736        hdr = (void *)skb->data;
3737
3738        if (ieee80211_is_beacon(hdr->frame_control) ||
3739            ieee80211_is_probe_resp(hdr->frame_control))
3740                rx_status.boottime_ns = ktime_get_boottime_ns();
3741
3742        memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
3743        data2->rx_pkts++;
3744        data2->rx_bytes += skb->len;
3745        ieee80211_rx_irqsafe(data2->hw, skb);
3746
3747        return 0;
3748err:
3749        pr_debug("mac80211_hwsim: error occurred in %s\n", __func__);
3750out:
3751        dev_kfree_skb(skb);
3752        return -EINVAL;
3753}
3754
3755static int hwsim_register_received_nl(struct sk_buff *skb_2,
3756                                      struct genl_info *info)
3757{
3758        struct net *net = genl_info_net(info);
3759        struct mac80211_hwsim_data *data;
3760        int chans = 1;
3761
3762        spin_lock_bh(&hwsim_radio_lock);
3763        list_for_each_entry(data, &hwsim_radios, list)
3764                chans = max(chans, data->channels);
3765        spin_unlock_bh(&hwsim_radio_lock);
3766
3767        /* In the future we should revise the userspace API and allow it
3768         * to set a flag that it does support multi-channel, then we can
3769         * let this pass conditionally on the flag.
3770         * For current userspace, prohibit it since it won't work right.
3771         */
3772        if (chans > 1)
3773                return -EOPNOTSUPP;
3774
3775        if (hwsim_net_get_wmediumd(net))
3776                return -EBUSY;
3777
3778        hwsim_register_wmediumd(net, info->snd_portid);
3779
3780        pr_debug("mac80211_hwsim: received a REGISTER, "
3781               "switching to wmediumd mode with pid %d\n", info->snd_portid);
3782
3783        return 0;
3784}
3785
3786/* ensures ciphers only include ciphers listed in 'hwsim_ciphers' array */
3787static bool hwsim_known_ciphers(const u32 *ciphers, int n_ciphers)
3788{
3789        int i;
3790
3791        for (i = 0; i < n_ciphers; i++) {
3792                int j;
3793                int found = 0;
3794
3795                for (j = 0; j < ARRAY_SIZE(hwsim_ciphers); j++) {
3796                        if (ciphers[i] == hwsim_ciphers[j]) {
3797                                found = 1;
3798                                break;
3799                        }
3800                }
3801
3802                if (!found)
3803                        return false;
3804        }
3805
3806        return true;
3807}
3808
3809static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
3810{
3811        struct hwsim_new_radio_params param = { 0 };
3812        const char *hwname = NULL;
3813        int ret;
3814
3815        param.reg_strict = info->attrs[HWSIM_ATTR_REG_STRICT_REG];
3816        param.p2p_device = info->attrs[HWSIM_ATTR_SUPPORT_P2P_DEVICE];
3817        param.channels = channels;
3818        param.destroy_on_close =
3819                info->attrs[HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE];
3820
3821        if (info->attrs[HWSIM_ATTR_CHANNELS])
3822                param.channels = nla_get_u32(info->attrs[HWSIM_ATTR_CHANNELS]);
3823
3824        if (param.channels < 1) {
3825                GENL_SET_ERR_MSG(info, "must have at least one channel");
3826                return -EINVAL;
3827        }
3828
3829        if (info->attrs[HWSIM_ATTR_NO_VIF])
3830                param.no_vif = true;
3831
3832        if (info->attrs[HWSIM_ATTR_USE_CHANCTX])
3833                param.use_chanctx = true;
3834        else
3835                param.use_chanctx = (param.channels > 1);
3836
3837        if (info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2])
3838                param.reg_alpha2 =
3839                        nla_data(info->attrs[HWSIM_ATTR_REG_HINT_ALPHA2]);
3840
3841        if (info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]) {
3842                u32 idx = nla_get_u32(info->attrs[HWSIM_ATTR_REG_CUSTOM_REG]);
3843
3844                if (idx >= ARRAY_SIZE(hwsim_world_regdom_custom))
3845                        return -EINVAL;
3846
3847                idx = array_index_nospec(idx,
3848                                         ARRAY_SIZE(hwsim_world_regdom_custom));
3849                param.regd = hwsim_world_regdom_custom[idx];
3850        }
3851
3852        if (info->attrs[HWSIM_ATTR_PERM_ADDR]) {
3853                if (!is_valid_ether_addr(
3854                                nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]))) {
3855                        GENL_SET_ERR_MSG(info,"MAC is no valid source addr");
3856                        NL_SET_BAD_ATTR(info->extack,
3857                                        info->attrs[HWSIM_ATTR_PERM_ADDR]);
3858                        return -EINVAL;
3859                }
3860
3861                param.perm_addr = nla_data(info->attrs[HWSIM_ATTR_PERM_ADDR]);
3862        }
3863
3864        if (info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]) {
3865                param.iftypes =
3866                        nla_get_u32(info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT]);
3867
3868                if (param.iftypes & ~HWSIM_IFTYPE_SUPPORT_MASK) {
3869                        NL_SET_ERR_MSG_ATTR(info->extack,
3870                                            info->attrs[HWSIM_ATTR_IFTYPE_SUPPORT],
3871                                            "cannot support more iftypes than kernel");
3872                        return -EINVAL;
3873                }
3874        } else {
3875                param.iftypes = HWSIM_IFTYPE_SUPPORT_MASK;
3876        }
3877
3878        /* ensure both flag and iftype support is honored */
3879        if (param.p2p_device ||
3880            param.iftypes & BIT(NL80211_IFTYPE_P2P_DEVICE)) {
3881                param.iftypes |= BIT(NL80211_IFTYPE_P2P_DEVICE);
3882                param.p2p_device = true;
3883        }
3884
3885        if (info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]) {
3886                u32 len = nla_len(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3887
3888                param.ciphers =
3889                        nla_data(info->attrs[HWSIM_ATTR_CIPHER_SUPPORT]);
3890
3891                if (len % sizeof(u32)) {
3892                        NL_SET_ERR_MSG_ATTR(info->extack,
3893                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3894                                            "bad cipher list length");
3895                        return -EINVAL;
3896                }
3897
3898                param.n_ciphers = len / sizeof(u32);
3899
3900                if (param.n_ciphers > ARRAY_SIZE(hwsim_ciphers)) {
3901                        NL_SET_ERR_MSG_ATTR(info->extack,
3902                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3903                                            "too many ciphers specified");
3904                        return -EINVAL;
3905                }
3906
3907                if (!hwsim_known_ciphers(param.ciphers, param.n_ciphers)) {
3908                        NL_SET_ERR_MSG_ATTR(info->extack,
3909                                            info->attrs[HWSIM_ATTR_CIPHER_SUPPORT],
3910                                            "unsupported ciphers specified");
3911                        return -EINVAL;
3912                }
3913        }
3914
3915        if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3916                hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3917                                  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3918                                  GFP_KERNEL);
3919                if (!hwname)
3920                        return -ENOMEM;
3921                param.hwname = hwname;
3922        }
3923
3924        ret = mac80211_hwsim_new_radio(info, &param);
3925        kfree(hwname);
3926        return ret;
3927}
3928
3929static int hwsim_del_radio_nl(struct sk_buff *msg, struct genl_info *info)
3930{
3931        struct mac80211_hwsim_data *data;
3932        s64 idx = -1;
3933        const char *hwname = NULL;
3934
3935        if (info->attrs[HWSIM_ATTR_RADIO_ID]) {
3936                idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3937        } else if (info->attrs[HWSIM_ATTR_RADIO_NAME]) {
3938                hwname = kstrndup((char *)nla_data(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3939                                  nla_len(info->attrs[HWSIM_ATTR_RADIO_NAME]),
3940                                  GFP_KERNEL);
3941                if (!hwname)
3942                        return -ENOMEM;
3943        } else
3944                return -EINVAL;
3945
3946        spin_lock_bh(&hwsim_radio_lock);
3947        list_for_each_entry(data, &hwsim_radios, list) {
3948                if (idx >= 0) {
3949                        if (data->idx != idx)
3950                                continue;
3951                } else {
3952                        if (!hwname ||
3953                            strcmp(hwname, wiphy_name(data->hw->wiphy)))
3954                                continue;
3955                }
3956
3957                if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3958                        continue;
3959
3960                list_del(&data->list);
3961                rhashtable_remove_fast(&hwsim_radios_rht, &data->rht,
3962                                       hwsim_rht_params);
3963                hwsim_radios_generation++;
3964                spin_unlock_bh(&hwsim_radio_lock);
3965                mac80211_hwsim_del_radio(data, wiphy_name(data->hw->wiphy),
3966                                         info);
3967                kfree(hwname);
3968                return 0;
3969        }
3970        spin_unlock_bh(&hwsim_radio_lock);
3971
3972        kfree(hwname);
3973        return -ENODEV;
3974}
3975
3976static int hwsim_get_radio_nl(struct sk_buff *msg, struct genl_info *info)
3977{
3978        struct mac80211_hwsim_data *data;
3979        struct sk_buff *skb;
3980        int idx, res = -ENODEV;
3981
3982        if (!info->attrs[HWSIM_ATTR_RADIO_ID])
3983                return -EINVAL;
3984        idx = nla_get_u32(info->attrs[HWSIM_ATTR_RADIO_ID]);
3985
3986        spin_lock_bh(&hwsim_radio_lock);
3987        list_for_each_entry(data, &hwsim_radios, list) {
3988                if (data->idx != idx)
3989                        continue;
3990
3991                if (!net_eq(wiphy_net(data->hw->wiphy), genl_info_net(info)))
3992                        continue;
3993
3994                skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
3995                if (!skb) {
3996                        res = -ENOMEM;
3997                        goto out_err;
3998                }
3999
4000                res = mac80211_hwsim_get_radio(skb, data, info->snd_portid,
4001                                               info->snd_seq, NULL, 0);
4002                if (res < 0) {
4003                        nlmsg_free(skb);
4004                        goto out_err;
4005                }
4006
4007                res = genlmsg_reply(skb, info);
4008                break;
4009        }
4010
4011out_err:
4012        spin_unlock_bh(&hwsim_radio_lock);
4013
4014        return res;
4015}
4016
4017static int hwsim_dump_radio_nl(struct sk_buff *skb,
4018                               struct netlink_callback *cb)
4019{
4020        int last_idx = cb->args[0] - 1;
4021        struct mac80211_hwsim_data *data = NULL;
4022        int res = 0;
4023        void *hdr;
4024
4025        spin_lock_bh(&hwsim_radio_lock);
4026        cb->seq = hwsim_radios_generation;
4027
4028        if (last_idx >= hwsim_radio_idx-1)
4029                goto done;
4030
4031        list_for_each_entry(data, &hwsim_radios, list) {
4032                if (data->idx <= last_idx)
4033                        continue;
4034
4035                if (!net_eq(wiphy_net(data->hw->wiphy), sock_net(skb->sk)))
4036                        continue;
4037