1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * KUnit tests for inform_bss functions 4 * 5 * Copyright (C) 2023-2024 Intel Corporation 6 */ 7 #include <linux/ieee80211.h> 8 #include <net/cfg80211.h> 9 #include <kunit/test.h> 10 #include <kunit/skbuff.h> 11 #include "../core.h" 12 #include "util.h" 13 14 /* mac80211 helpers for element building */ 15 #include "../../mac80211/ieee80211_i.h" 16 17 MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING); 18 19 struct test_elem { 20 u8 id; 21 u8 len; 22 union { 23 u8 data[255]; 24 struct { 25 u8 eid; 26 u8 edata[254]; 27 }; 28 }; 29 }; 30 31 static struct gen_new_ie_case { 32 const char *desc; 33 struct test_elem parent_ies[16]; 34 struct test_elem child_ies[16]; 35 struct test_elem result_ies[16]; 36 } gen_new_ie_cases[] = { 37 { 38 .desc = "ML not inherited", 39 .parent_ies = { 40 { .id = WLAN_EID_EXTENSION, .len = 255, 41 .eid = WLAN_EID_EXT_EHT_MULTI_LINK }, 42 }, 43 .child_ies = { 44 { .id = WLAN_EID_SSID, .len = 2 }, 45 }, 46 .result_ies = { 47 { .id = WLAN_EID_SSID, .len = 2 }, 48 }, 49 }, 50 { 51 .desc = "fragments are ignored if previous len not 255", 52 .parent_ies = { 53 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 254, }, 54 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 55 }, 56 .child_ies = { 57 { .id = WLAN_EID_SSID, .len = 2 }, 58 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 59 }, 60 .result_ies = { 61 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 254, }, 62 { .id = WLAN_EID_SSID, .len = 2 }, 63 }, 64 }, 65 { 66 .desc = "fragments inherited", 67 .parent_ies = { 68 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 69 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 70 }, 71 .child_ies = { 72 { .id = WLAN_EID_SSID, .len = 2 }, 73 }, 74 .result_ies = { 75 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 76 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 77 { .id = WLAN_EID_SSID, .len = 2 }, 78 }, 79 }, 80 { 81 .desc = "fragments copied", 82 .parent_ies = { 83 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 84 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 85 }, 86 .child_ies = { 87 { .id = WLAN_EID_SSID, .len = 2 }, 88 }, 89 .result_ies = { 90 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 91 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 92 { .id = WLAN_EID_SSID, .len = 2 }, 93 }, 94 }, 95 { 96 .desc = "multiple elements inherit", 97 .parent_ies = { 98 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 99 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 100 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 123, }, 101 }, 102 .child_ies = { 103 { .id = WLAN_EID_SSID, .len = 2 }, 104 }, 105 .result_ies = { 106 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 107 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 108 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 123, }, 109 { .id = WLAN_EID_SSID, .len = 2 }, 110 }, 111 }, 112 { 113 .desc = "one child element overrides", 114 .parent_ies = { 115 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 255, }, 116 { .id = WLAN_EID_FRAGMENT, .len = 125, }, 117 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 123, }, 118 }, 119 .child_ies = { 120 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 127, }, 121 { .id = WLAN_EID_SSID, .len = 2 }, 122 }, 123 .result_ies = { 124 { .id = WLAN_EID_REDUCED_NEIGHBOR_REPORT, .len = 127, }, 125 { .id = WLAN_EID_SSID, .len = 2 }, 126 }, 127 }, 128 { 129 .desc = "empty elements from parent", 130 .parent_ies = { 131 { .id = 0x1, .len = 0, }, 132 { .id = WLAN_EID_EXTENSION, .len = 1, .eid = 0x10 }, 133 }, 134 .child_ies = { 135 }, 136 .result_ies = { 137 { .id = 0x1, .len = 0, }, 138 { .id = WLAN_EID_EXTENSION, .len = 1, .eid = 0x10 }, 139 }, 140 }, 141 { 142 .desc = "empty elements from child", 143 .parent_ies = { 144 }, 145 .child_ies = { 146 { .id = 0x1, .len = 0, }, 147 { .id = WLAN_EID_EXTENSION, .len = 1, .eid = 0x10 }, 148 }, 149 .result_ies = { 150 { .id = 0x1, .len = 0, }, 151 { .id = WLAN_EID_EXTENSION, .len = 1, .eid = 0x10 }, 152 }, 153 }, 154 { 155 .desc = "invalid extended elements ignored", 156 .parent_ies = { 157 { .id = WLAN_EID_EXTENSION, .len = 0 }, 158 }, 159 .child_ies = { 160 { .id = WLAN_EID_EXTENSION, .len = 0 }, 161 }, 162 .result_ies = { 163 }, 164 }, 165 { 166 .desc = "multiple extended elements", 167 .parent_ies = { 168 { .id = WLAN_EID_EXTENSION, .len = 3, 169 .eid = WLAN_EID_EXT_HE_CAPABILITY }, 170 { .id = WLAN_EID_EXTENSION, .len = 5, 171 .eid = WLAN_EID_EXT_ASSOC_DELAY_INFO }, 172 { .id = WLAN_EID_EXTENSION, .len = 7, 173 .eid = WLAN_EID_EXT_HE_OPERATION }, 174 { .id = WLAN_EID_EXTENSION, .len = 11, 175 .eid = WLAN_EID_EXT_FILS_REQ_PARAMS }, 176 }, 177 .child_ies = { 178 { .id = WLAN_EID_SSID, .len = 13 }, 179 { .id = WLAN_EID_EXTENSION, .len = 17, 180 .eid = WLAN_EID_EXT_HE_CAPABILITY }, 181 { .id = WLAN_EID_EXTENSION, .len = 11, 182 .eid = WLAN_EID_EXT_FILS_KEY_CONFIRM }, 183 { .id = WLAN_EID_EXTENSION, .len = 19, 184 .eid = WLAN_EID_EXT_HE_OPERATION }, 185 }, 186 .result_ies = { 187 { .id = WLAN_EID_EXTENSION, .len = 17, 188 .eid = WLAN_EID_EXT_HE_CAPABILITY }, 189 { .id = WLAN_EID_EXTENSION, .len = 5, 190 .eid = WLAN_EID_EXT_ASSOC_DELAY_INFO }, 191 { .id = WLAN_EID_EXTENSION, .len = 19, 192 .eid = WLAN_EID_EXT_HE_OPERATION }, 193 { .id = WLAN_EID_EXTENSION, .len = 11, 194 .eid = WLAN_EID_EXT_FILS_REQ_PARAMS }, 195 { .id = WLAN_EID_SSID, .len = 13 }, 196 { .id = WLAN_EID_EXTENSION, .len = 11, 197 .eid = WLAN_EID_EXT_FILS_KEY_CONFIRM }, 198 }, 199 }, 200 { 201 .desc = "non-inherit element", 202 .parent_ies = { 203 { .id = 0x1, .len = 7, }, 204 { .id = 0x2, .len = 11, }, 205 { .id = 0x3, .len = 13, }, 206 { .id = WLAN_EID_EXTENSION, .len = 17, .eid = 0x10 }, 207 { .id = WLAN_EID_EXTENSION, .len = 19, .eid = 0x11 }, 208 { .id = WLAN_EID_EXTENSION, .len = 23, .eid = 0x12 }, 209 { .id = WLAN_EID_EXTENSION, .len = 29, .eid = 0x14 }, 210 }, 211 .child_ies = { 212 { .id = WLAN_EID_EXTENSION, 213 .eid = WLAN_EID_EXT_NON_INHERITANCE, 214 .len = 10, 215 .edata = { 0x3, 0x1, 0x2, 0x3, 216 0x4, 0x10, 0x11, 0x13, 0x14 } }, 217 { .id = WLAN_EID_SSID, .len = 2 }, 218 }, 219 .result_ies = { 220 { .id = WLAN_EID_EXTENSION, .len = 23, .eid = 0x12 }, 221 { .id = WLAN_EID_SSID, .len = 2 }, 222 }, 223 }, 224 }; 225 KUNIT_ARRAY_PARAM_DESC(gen_new_ie, gen_new_ie_cases, desc) 226 227 static void test_gen_new_ie(struct kunit *test) 228 { 229 const struct gen_new_ie_case *params = test->param_value; 230 struct sk_buff *parent = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 231 struct sk_buff *child = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 232 struct sk_buff *reference = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 233 u8 *out = kunit_kzalloc(test, IEEE80211_MAX_DATA_LEN, GFP_KERNEL); 234 size_t len; 235 int i; 236 237 KUNIT_ASSERT_NOT_NULL(test, parent); 238 KUNIT_ASSERT_NOT_NULL(test, child); 239 KUNIT_ASSERT_NOT_NULL(test, reference); 240 KUNIT_ASSERT_NOT_NULL(test, out); 241 242 for (i = 0; i < ARRAY_SIZE(params->parent_ies); i++) { 243 if (params->parent_ies[i].len != 0) { 244 skb_put_u8(parent, params->parent_ies[i].id); 245 skb_put_u8(parent, params->parent_ies[i].len); 246 skb_put_data(parent, params->parent_ies[i].data, 247 params->parent_ies[i].len); 248 } 249 250 if (params->child_ies[i].len != 0) { 251 skb_put_u8(child, params->child_ies[i].id); 252 skb_put_u8(child, params->child_ies[i].len); 253 skb_put_data(child, params->child_ies[i].data, 254 params->child_ies[i].len); 255 } 256 257 if (params->result_ies[i].len != 0) { 258 skb_put_u8(reference, params->result_ies[i].id); 259 skb_put_u8(reference, params->result_ies[i].len); 260 skb_put_data(reference, params->result_ies[i].data, 261 params->result_ies[i].len); 262 } 263 } 264 265 len = cfg80211_gen_new_ie(parent->data, parent->len, 266 child->data, child->len, 267 out, IEEE80211_MAX_DATA_LEN); 268 KUNIT_EXPECT_EQ(test, len, reference->len); 269 KUNIT_EXPECT_MEMEQ(test, out, reference->data, reference->len); 270 memset(out, 0, IEEE80211_MAX_DATA_LEN); 271 272 /* Exactly enough space */ 273 len = cfg80211_gen_new_ie(parent->data, parent->len, 274 child->data, child->len, 275 out, reference->len); 276 KUNIT_EXPECT_EQ(test, len, reference->len); 277 KUNIT_EXPECT_MEMEQ(test, out, reference->data, reference->len); 278 memset(out, 0, IEEE80211_MAX_DATA_LEN); 279 280 /* Not enough space (or expected zero length) */ 281 len = cfg80211_gen_new_ie(parent->data, parent->len, 282 child->data, child->len, 283 out, reference->len - 1); 284 KUNIT_EXPECT_EQ(test, len, 0); 285 } 286 287 static void test_gen_new_ie_malformed(struct kunit *test) 288 { 289 struct sk_buff *malformed = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 290 u8 *out = kunit_kzalloc(test, IEEE80211_MAX_DATA_LEN, GFP_KERNEL); 291 size_t len; 292 293 KUNIT_ASSERT_NOT_NULL(test, malformed); 294 KUNIT_ASSERT_NOT_NULL(test, out); 295 296 skb_put_u8(malformed, WLAN_EID_SSID); 297 skb_put_u8(malformed, 3); 298 skb_put(malformed, 3); 299 skb_put_u8(malformed, WLAN_EID_REDUCED_NEIGHBOR_REPORT); 300 skb_put_u8(malformed, 10); 301 skb_put(malformed, 9); 302 303 len = cfg80211_gen_new_ie(malformed->data, malformed->len, 304 out, 0, 305 out, IEEE80211_MAX_DATA_LEN); 306 KUNIT_EXPECT_EQ(test, len, 5); 307 308 len = cfg80211_gen_new_ie(out, 0, 309 malformed->data, malformed->len, 310 out, IEEE80211_MAX_DATA_LEN); 311 KUNIT_EXPECT_EQ(test, len, 5); 312 } 313 314 struct inform_bss { 315 struct kunit *test; 316 317 int inform_bss_count; 318 }; 319 320 static void inform_bss_inc_counter(struct wiphy *wiphy, 321 struct cfg80211_bss *bss, 322 const struct cfg80211_bss_ies *ies, 323 void *drv_data) 324 { 325 struct inform_bss *ctx = t_wiphy_ctx(wiphy); 326 327 ctx->inform_bss_count++; 328 329 rcu_read_lock(); 330 KUNIT_EXPECT_PTR_EQ(ctx->test, drv_data, ctx); 331 KUNIT_EXPECT_PTR_EQ(ctx->test, ies, rcu_dereference(bss->ies)); 332 rcu_read_unlock(); 333 } 334 335 static void test_inform_bss_ssid_only(struct kunit *test) 336 { 337 struct inform_bss ctx = { 338 .test = test, 339 }; 340 struct wiphy *wiphy = T_WIPHY(test, ctx); 341 struct t_wiphy_priv *w_priv = wiphy_priv(wiphy); 342 struct cfg80211_inform_bss inform_bss = { 343 .signal = 50, 344 .drv_data = &ctx, 345 }; 346 const u8 bssid[ETH_ALEN] = { 0x10, 0x22, 0x33, 0x44, 0x55, 0x66 }; 347 u64 tsf = 0x1000000000000000ULL; 348 int beacon_int = 100; 349 u16 capability = 0x1234; 350 static const u8 input[] = { 351 [0] = WLAN_EID_SSID, 352 [1] = 4, 353 [2] = 'T', 'E', 'S', 'T' 354 }; 355 struct cfg80211_bss *bss, *other; 356 const struct cfg80211_bss_ies *ies; 357 358 w_priv->ops->inform_bss = inform_bss_inc_counter; 359 360 inform_bss.chan = ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(2412)); 361 KUNIT_ASSERT_NOT_NULL(test, inform_bss.chan); 362 363 bss = cfg80211_inform_bss_data(wiphy, &inform_bss, 364 CFG80211_BSS_FTYPE_PRESP, bssid, tsf, 365 capability, beacon_int, 366 input, sizeof(input), 367 GFP_KERNEL); 368 KUNIT_EXPECT_NOT_NULL(test, bss); 369 KUNIT_EXPECT_EQ(test, ctx.inform_bss_count, 1); 370 371 /* Check values in returned bss are correct */ 372 KUNIT_EXPECT_EQ(test, bss->signal, inform_bss.signal); 373 KUNIT_EXPECT_EQ(test, bss->beacon_interval, beacon_int); 374 KUNIT_EXPECT_EQ(test, bss->capability, capability); 375 KUNIT_EXPECT_EQ(test, bss->bssid_index, 0); 376 KUNIT_EXPECT_PTR_EQ(test, bss->channel, inform_bss.chan); 377 KUNIT_EXPECT_MEMEQ(test, bssid, bss->bssid, sizeof(bssid)); 378 379 /* Check the IEs have the expected value */ 380 rcu_read_lock(); 381 ies = rcu_dereference(bss->ies); 382 KUNIT_EXPECT_NOT_NULL(test, ies); 383 KUNIT_EXPECT_EQ(test, ies->tsf, tsf); 384 KUNIT_EXPECT_EQ(test, ies->len, sizeof(input)); 385 KUNIT_EXPECT_MEMEQ(test, ies->data, input, sizeof(input)); 386 rcu_read_unlock(); 387 388 /* Check we can look up the BSS - by SSID */ 389 other = cfg80211_get_bss(wiphy, NULL, NULL, "TEST", 4, 390 IEEE80211_BSS_TYPE_ANY, 391 IEEE80211_PRIVACY_ANY); 392 KUNIT_EXPECT_PTR_EQ(test, bss, other); 393 cfg80211_put_bss(wiphy, other); 394 395 /* Check we can look up the BSS - by BSSID */ 396 other = cfg80211_get_bss(wiphy, NULL, bssid, NULL, 0, 397 IEEE80211_BSS_TYPE_ANY, 398 IEEE80211_PRIVACY_ANY); 399 KUNIT_EXPECT_PTR_EQ(test, bss, other); 400 cfg80211_put_bss(wiphy, other); 401 402 cfg80211_put_bss(wiphy, bss); 403 } 404 405 static struct inform_bss_ml_sta_case { 406 const char *desc; 407 int mld_id; 408 bool sta_prof_vendor_elems; 409 bool include_oper_class; 410 bool nstr; 411 } inform_bss_ml_sta_cases[] = { 412 { 413 .desc = "zero_mld_id", 414 .mld_id = 0, 415 .sta_prof_vendor_elems = false, 416 }, { 417 .desc = "zero_mld_id_with_oper_class", 418 .mld_id = 0, 419 .sta_prof_vendor_elems = false, 420 .include_oper_class = true, 421 }, { 422 .desc = "mld_id_eq_1", 423 .mld_id = 1, 424 .sta_prof_vendor_elems = true, 425 }, { 426 .desc = "mld_id_eq_1_with_oper_class", 427 .mld_id = 1, 428 .sta_prof_vendor_elems = true, 429 .include_oper_class = true, 430 }, { 431 .desc = "nstr", 432 .mld_id = 0, 433 .nstr = true, 434 }, 435 }; 436 KUNIT_ARRAY_PARAM_DESC(inform_bss_ml_sta, inform_bss_ml_sta_cases, desc) 437 438 static void test_inform_bss_ml_sta(struct kunit *test) 439 { 440 const struct inform_bss_ml_sta_case *params = test->param_value; 441 struct inform_bss ctx = { 442 .test = test, 443 }; 444 struct wiphy *wiphy = T_WIPHY(test, ctx); 445 struct t_wiphy_priv *w_priv = wiphy_priv(wiphy); 446 struct cfg80211_inform_bss inform_bss = { 447 .signal = 50, 448 .drv_data = &ctx, 449 }; 450 struct cfg80211_bss *bss, *link_bss; 451 const struct cfg80211_bss_ies *ies; 452 453 /* sending station */ 454 const u8 bssid[ETH_ALEN] = { 0x10, 0x22, 0x33, 0x44, 0x55, 0x66 }; 455 u64 tsf = 0x1000000000000000ULL; 456 int beacon_int = 100; 457 u16 capability = 0x1234; 458 459 /* Building the frame *************************************************/ 460 struct sk_buff *input = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 461 u8 *len_mle, *len_prof; 462 u8 link_id = 2; 463 struct { 464 struct ieee80211_neighbor_ap_info info; 465 struct ieee80211_tbtt_info_ge_11 ap; 466 } __packed rnr_normal = { 467 .info = { 468 .tbtt_info_hdr = u8_encode_bits(0, IEEE80211_AP_INFO_TBTT_HDR_COUNT), 469 .tbtt_info_len = sizeof(struct ieee80211_tbtt_info_ge_11), 470 .op_class = 81, 471 .channel = 11, 472 }, 473 .ap = { 474 .tbtt_offset = 0xff, 475 .bssid = { 0x10, 0x22, 0x33, 0x44, 0x55, 0x67 }, 476 .short_ssid = 0, /* unused */ 477 .bss_params = 0, 478 .psd_20 = 0, 479 .mld_params.mld_id = params->mld_id, 480 .mld_params.params = 481 le16_encode_bits(link_id, 482 IEEE80211_RNR_MLD_PARAMS_LINK_ID), 483 } 484 }; 485 struct { 486 struct ieee80211_neighbor_ap_info info; 487 struct ieee80211_rnr_mld_params mld_params; 488 } __packed rnr_nstr = { 489 .info = { 490 .tbtt_info_hdr = 491 u8_encode_bits(0, IEEE80211_AP_INFO_TBTT_HDR_COUNT) | 492 u8_encode_bits(IEEE80211_TBTT_INFO_TYPE_MLD, 493 IEEE80211_AP_INFO_TBTT_HDR_TYPE), 494 .tbtt_info_len = sizeof(struct ieee80211_rnr_mld_params), 495 .op_class = 81, 496 .channel = 11, 497 }, 498 .mld_params = { 499 .mld_id = params->mld_id, 500 .params = 501 le16_encode_bits(link_id, 502 IEEE80211_RNR_MLD_PARAMS_LINK_ID), 503 } 504 }; 505 size_t rnr_len = params->nstr ? sizeof(rnr_nstr) : sizeof(rnr_normal); 506 void *rnr = params->nstr ? (void *)&rnr_nstr : (void *)&rnr_normal; 507 struct { 508 __le16 control; 509 u8 var_len; 510 u8 mld_mac_addr[ETH_ALEN]; 511 u8 link_id_info; 512 u8 params_change_count; 513 __le16 mld_caps_and_ops; 514 u8 mld_id; 515 __le16 ext_mld_caps_and_ops; 516 } __packed mle_basic_common_info = { 517 .control = 518 cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC | 519 IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT | 520 IEEE80211_MLC_BASIC_PRES_LINK_ID | 521 (params->mld_id ? IEEE80211_MLC_BASIC_PRES_MLD_ID : 0) | 522 IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP), 523 .mld_id = params->mld_id, 524 .mld_caps_and_ops = cpu_to_le16(0x0102), 525 .ext_mld_caps_and_ops = cpu_to_le16(0x0304), 526 .var_len = sizeof(mle_basic_common_info) - 2 - 527 (params->mld_id ? 0 : 1), 528 .mld_mac_addr = { 0x10, 0x22, 0x33, 0x44, 0x55, 0x60 }, 529 }; 530 struct { 531 __le16 control; 532 u8 var_len; 533 u8 bssid[ETH_ALEN]; 534 __le16 beacon_int; 535 __le64 tsf_offset; 536 __le16 capabilities; /* already part of payload */ 537 } __packed sta_prof = { 538 .control = 539 cpu_to_le16(IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE | 540 IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT | 541 IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT | 542 IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT | 543 u16_encode_bits(link_id, 544 IEEE80211_MLE_STA_CONTROL_LINK_ID)), 545 .var_len = sizeof(sta_prof) - 2 - 2, 546 .bssid = { *rnr_normal.ap.bssid }, 547 .beacon_int = cpu_to_le16(101), 548 .tsf_offset = cpu_to_le64(-123ll), 549 .capabilities = cpu_to_le16(0xdead), 550 }; 551 552 KUNIT_ASSERT_NOT_NULL(test, input); 553 554 w_priv->ops->inform_bss = inform_bss_inc_counter; 555 556 inform_bss.chan = ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(2412)); 557 KUNIT_ASSERT_NOT_NULL(test, inform_bss.chan); 558 559 skb_put_u8(input, WLAN_EID_SSID); 560 skb_put_u8(input, 4); 561 skb_put_data(input, "TEST", 4); 562 563 if (params->include_oper_class) { 564 skb_put_u8(input, WLAN_EID_SUPPORTED_REGULATORY_CLASSES); 565 skb_put_u8(input, 1); 566 skb_put_u8(input, 81); 567 } 568 569 skb_put_u8(input, WLAN_EID_REDUCED_NEIGHBOR_REPORT); 570 skb_put_u8(input, rnr_len); 571 skb_put_data(input, rnr, rnr_len); 572 573 /* build a multi-link element */ 574 skb_put_u8(input, WLAN_EID_EXTENSION); 575 len_mle = skb_put(input, 1); 576 skb_put_u8(input, WLAN_EID_EXT_EHT_MULTI_LINK); 577 skb_put_data(input, &mle_basic_common_info, sizeof(mle_basic_common_info)); 578 if (!params->mld_id) 579 t_skb_remove_member(input, typeof(mle_basic_common_info), mld_id); 580 /* with a STA profile inside */ 581 skb_put_u8(input, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE); 582 len_prof = skb_put(input, 1); 583 skb_put_data(input, &sta_prof, sizeof(sta_prof)); 584 585 if (params->sta_prof_vendor_elems) { 586 /* Put two (vendor) element into sta_prof */ 587 skb_put_u8(input, WLAN_EID_VENDOR_SPECIFIC); 588 skb_put_u8(input, 160); 589 skb_put(input, 160); 590 591 skb_put_u8(input, WLAN_EID_VENDOR_SPECIFIC); 592 skb_put_u8(input, 165); 593 skb_put(input, 165); 594 } 595 596 /* fragment STA profile */ 597 ieee80211_fragment_element(input, len_prof, 598 IEEE80211_MLE_SUBELEM_FRAGMENT); 599 /* fragment MLE */ 600 ieee80211_fragment_element(input, len_mle, WLAN_EID_FRAGMENT); 601 602 /* Put a (vendor) element after the ML element */ 603 skb_put_u8(input, WLAN_EID_VENDOR_SPECIFIC); 604 skb_put_u8(input, 155); 605 skb_put(input, 155); 606 607 /* Submit *************************************************************/ 608 bss = cfg80211_inform_bss_data(wiphy, &inform_bss, 609 CFG80211_BSS_FTYPE_PRESP, bssid, tsf, 610 capability, beacon_int, 611 input->data, input->len, 612 GFP_KERNEL); 613 KUNIT_EXPECT_NOT_NULL(test, bss); 614 KUNIT_EXPECT_EQ(test, ctx.inform_bss_count, 2); 615 616 /* Check link_bss *****************************************************/ 617 link_bss = __cfg80211_get_bss(wiphy, NULL, sta_prof.bssid, NULL, 0, 618 IEEE80211_BSS_TYPE_ANY, 619 IEEE80211_PRIVACY_ANY, 620 0); 621 KUNIT_ASSERT_NOT_NULL(test, link_bss); 622 KUNIT_EXPECT_EQ(test, link_bss->signal, 0); 623 KUNIT_EXPECT_EQ(test, link_bss->beacon_interval, 624 le16_to_cpu(sta_prof.beacon_int)); 625 KUNIT_EXPECT_EQ(test, link_bss->capability, 626 le16_to_cpu(sta_prof.capabilities)); 627 KUNIT_EXPECT_EQ(test, link_bss->bssid_index, 0); 628 KUNIT_EXPECT_PTR_EQ(test, link_bss->channel, 629 ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(2462))); 630 631 /* Test wiphy does not set WIPHY_FLAG_SUPPORTS_NSTR_NONPRIMARY */ 632 if (params->nstr) { 633 KUNIT_EXPECT_EQ(test, link_bss->use_for, 0); 634 KUNIT_EXPECT_EQ(test, link_bss->cannot_use_reasons, 635 NL80211_BSS_CANNOT_USE_NSTR_NONPRIMARY); 636 KUNIT_EXPECT_NULL(test, 637 cfg80211_get_bss(wiphy, NULL, sta_prof.bssid, 638 NULL, 0, 639 IEEE80211_BSS_TYPE_ANY, 640 IEEE80211_PRIVACY_ANY)); 641 } else { 642 KUNIT_EXPECT_EQ(test, link_bss->use_for, 643 NL80211_BSS_USE_FOR_ALL); 644 KUNIT_EXPECT_EQ(test, link_bss->cannot_use_reasons, 0); 645 } 646 647 rcu_read_lock(); 648 ies = rcu_dereference(link_bss->ies); 649 KUNIT_EXPECT_NOT_NULL(test, ies); 650 KUNIT_EXPECT_EQ(test, ies->tsf, tsf + le64_to_cpu(sta_prof.tsf_offset)); 651 /* Resulting length should be: 652 * SSID (inherited) + RNR (inherited) + vendor element(s) + 653 * operating class (if requested) + 654 * generated RNR (if MLD ID == 0 and not NSTR) + 655 * MLE common info + MLE header and control 656 */ 657 if (params->sta_prof_vendor_elems) 658 KUNIT_EXPECT_EQ(test, ies->len, 659 6 + 2 + rnr_len + 2 + 160 + 2 + 165 + 660 (params->include_oper_class ? 3 : 0) + 661 (!params->mld_id && !params->nstr ? 22 : 0) + 662 mle_basic_common_info.var_len + 5); 663 else 664 KUNIT_EXPECT_EQ(test, ies->len, 665 6 + 2 + rnr_len + 2 + 155 + 666 (params->include_oper_class ? 3 : 0) + 667 (!params->mld_id && !params->nstr ? 22 : 0) + 668 mle_basic_common_info.var_len + 5); 669 rcu_read_unlock(); 670 671 cfg80211_put_bss(wiphy, bss); 672 cfg80211_put_bss(wiphy, link_bss); 673 } 674 675 static struct cfg80211_parse_colocated_ap_case { 676 const char *desc; 677 u8 op_class; 678 u8 channel; 679 struct ieee80211_neighbor_ap_info info; 680 union { 681 struct ieee80211_tbtt_info_ge_11 tbtt_long; 682 struct ieee80211_tbtt_info_7_8_9 tbtt_short; 683 }; 684 bool add_junk; 685 bool same_ssid; 686 bool valid; 687 } cfg80211_parse_colocated_ap_cases[] = { 688 { 689 .desc = "wrong_band", 690 .info.op_class = 81, 691 .info.channel = 11, 692 .tbtt_long = { 693 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 694 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 695 }, 696 .valid = false, 697 }, 698 { 699 .desc = "wrong_type", 700 /* IEEE80211_AP_INFO_TBTT_HDR_TYPE is in the least significant bits */ 701 .info.tbtt_info_hdr = IEEE80211_TBTT_INFO_TYPE_MLD, 702 .tbtt_long = { 703 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 704 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 705 }, 706 .valid = false, 707 }, 708 { 709 .desc = "colocated_invalid_len_short", 710 .info.tbtt_info_len = 6, 711 .tbtt_short = { 712 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 713 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP | 714 IEEE80211_RNR_TBTT_PARAMS_SAME_SSID, 715 }, 716 .valid = false, 717 }, 718 { 719 .desc = "colocated_invalid_len_short_mld", 720 .info.tbtt_info_len = 10, 721 .tbtt_long = { 722 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 723 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 724 }, 725 .valid = false, 726 }, 727 { 728 .desc = "colocated_non_mld", 729 .info.tbtt_info_len = sizeof(struct ieee80211_tbtt_info_7_8_9), 730 .tbtt_short = { 731 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 732 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP | 733 IEEE80211_RNR_TBTT_PARAMS_SAME_SSID, 734 }, 735 .same_ssid = true, 736 .valid = true, 737 }, 738 { 739 .desc = "colocated_non_mld_invalid_bssid", 740 .info.tbtt_info_len = sizeof(struct ieee80211_tbtt_info_7_8_9), 741 .tbtt_short = { 742 .bssid = { 0xff, 0x11, 0x22, 0x33, 0x44, 0x55 }, 743 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP | 744 IEEE80211_RNR_TBTT_PARAMS_SAME_SSID, 745 }, 746 .same_ssid = true, 747 .valid = false, 748 }, 749 { 750 .desc = "colocated_mld", 751 .tbtt_long = { 752 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 753 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 754 }, 755 .valid = true, 756 }, 757 { 758 .desc = "colocated_mld", 759 .tbtt_long = { 760 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 761 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 762 }, 763 .add_junk = true, 764 .valid = false, 765 }, 766 { 767 .desc = "colocated_disabled_mld", 768 .tbtt_long = { 769 .bssid = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }, 770 .bss_params = IEEE80211_RNR_TBTT_PARAMS_COLOC_AP, 771 .mld_params.params = cpu_to_le16(IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK), 772 }, 773 .valid = false, 774 }, 775 }; 776 KUNIT_ARRAY_PARAM_DESC(cfg80211_parse_colocated_ap, cfg80211_parse_colocated_ap_cases, desc) 777 778 static void test_cfg80211_parse_colocated_ap(struct kunit *test) 779 { 780 const struct cfg80211_parse_colocated_ap_case *params = test->param_value; 781 struct sk_buff *input = kunit_zalloc_skb(test, 1024, GFP_KERNEL); 782 struct cfg80211_bss_ies *ies; 783 struct ieee80211_neighbor_ap_info info; 784 LIST_HEAD(coloc_ap_list); 785 int count; 786 787 KUNIT_ASSERT_NOT_NULL(test, input); 788 789 info = params->info; 790 791 /* Reasonable values for a colocated AP */ 792 if (!info.tbtt_info_len) 793 info.tbtt_info_len = sizeof(params->tbtt_long); 794 if (!info.op_class) 795 info.op_class = 131; 796 if (!info.channel) 797 info.channel = 33; 798 /* Zero is the correct default for .btt_info_hdr (one entry, TBTT type) */ 799 800 skb_put_u8(input, WLAN_EID_SSID); 801 skb_put_u8(input, 4); 802 skb_put_data(input, "TEST", 4); 803 804 skb_put_u8(input, WLAN_EID_REDUCED_NEIGHBOR_REPORT); 805 skb_put_u8(input, sizeof(info) + info.tbtt_info_len + (params->add_junk ? 3 : 0)); 806 skb_put_data(input, &info, sizeof(info)); 807 skb_put_data(input, ¶ms->tbtt_long, info.tbtt_info_len); 808 809 if (params->add_junk) 810 skb_put_data(input, "123", 3); 811 812 ies = kunit_kzalloc(test, struct_size(ies, data, input->len), GFP_KERNEL); 813 ies->len = input->len; 814 memcpy(ies->data, input->data, input->len); 815 816 count = cfg80211_parse_colocated_ap(ies, &coloc_ap_list); 817 818 KUNIT_EXPECT_EQ(test, count, params->valid); 819 KUNIT_EXPECT_EQ(test, list_count_nodes(&coloc_ap_list), params->valid); 820 821 if (params->valid && !list_empty(&coloc_ap_list)) { 822 struct cfg80211_colocated_ap *ap; 823 824 ap = list_first_entry(&coloc_ap_list, typeof(*ap), list); 825 if (info.tbtt_info_len <= sizeof(params->tbtt_short)) 826 KUNIT_EXPECT_MEMEQ(test, ap->bssid, params->tbtt_short.bssid, ETH_ALEN); 827 else 828 KUNIT_EXPECT_MEMEQ(test, ap->bssid, params->tbtt_long.bssid, ETH_ALEN); 829 830 if (params->same_ssid) { 831 KUNIT_EXPECT_EQ(test, ap->ssid_len, 4); 832 KUNIT_EXPECT_MEMEQ(test, ap->ssid, "TEST", 4); 833 } else { 834 KUNIT_EXPECT_EQ(test, ap->ssid_len, 0); 835 } 836 } 837 838 cfg80211_free_coloc_ap_list(&coloc_ap_list); 839 } 840 841 static struct kunit_case gen_new_ie_test_cases[] = { 842 KUNIT_CASE_PARAM(test_gen_new_ie, gen_new_ie_gen_params), 843 KUNIT_CASE(test_gen_new_ie_malformed), 844 {} 845 }; 846 847 static struct kunit_suite gen_new_ie = { 848 .name = "cfg80211-ie-generation", 849 .test_cases = gen_new_ie_test_cases, 850 }; 851 852 kunit_test_suite(gen_new_ie); 853 854 static struct kunit_case inform_bss_test_cases[] = { 855 KUNIT_CASE(test_inform_bss_ssid_only), 856 KUNIT_CASE_PARAM(test_inform_bss_ml_sta, inform_bss_ml_sta_gen_params), 857 {} 858 }; 859 860 static struct kunit_suite inform_bss = { 861 .name = "cfg80211-inform-bss", 862 .test_cases = inform_bss_test_cases, 863 }; 864 865 kunit_test_suite(inform_bss); 866 867 static struct kunit_case scan_6ghz_cases[] = { 868 KUNIT_CASE_PARAM(test_cfg80211_parse_colocated_ap, 869 cfg80211_parse_colocated_ap_gen_params), 870 {} 871 }; 872 873 static struct kunit_suite scan_6ghz = { 874 .name = "cfg80211-scan-6ghz", 875 .test_cases = scan_6ghz_cases, 876 }; 877 878 kunit_test_suite(scan_6ghz); 879