| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * KUnit tests for channel helper functions |
| * |
| * Copyright (C) 2023-2024, 2026 Intel Corporation |
| */ |
| #include <net/cfg80211.h> |
| #include <kunit/test.h> |
| |
| MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING"); |
| |
| static struct ieee80211_channel chan_2ghz_1 = { |
| .band = NL80211_BAND_2GHZ, |
| .center_freq = 2412, |
| }; |
| |
| static struct ieee80211_channel chan_6ghz_1 = { |
| .band = NL80211_BAND_6GHZ, |
| .center_freq = 5955, |
| }; |
| |
| static struct ieee80211_channel chan_6ghz_5 = { |
| .band = NL80211_BAND_6GHZ, |
| .center_freq = 5975, |
| }; |
| |
| static struct ieee80211_channel chan_6ghz_105 = { |
| .band = NL80211_BAND_6GHZ, |
| .center_freq = 6475, |
| }; |
| |
| static const struct chandef_compat_case { |
| const char *desc; |
| /* leave c1 empty for tests for identical */ |
| struct cfg80211_chan_def c1, c2; |
| /* we test both ways around, so c2 should always be the compat one */ |
| bool compat; |
| } chandef_compat_cases[] = { |
| { |
| .desc = "identical non-HT", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_20_NOHT, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "identical 20 MHz", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_20, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "identical 40 MHz", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_40, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "identical 80 MHz", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_80, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10 + 20, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "identical 160 MHz", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10 + 20 + 40, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "identical 320 MHz", |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10 + 20 + 40 + 80, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "20 MHz in 320 MHz\n", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_20, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10 + 20 + 40 + 80, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "different 20 MHz", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_20, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_20, |
| .chan = &chan_6ghz_5, |
| .center_freq1 = 5975, |
| }, |
| }, |
| { |
| .desc = "different primary 320 MHz", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 110, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 - 50, |
| }, |
| }, |
| { |
| /* similar to previous test but one has lower BW */ |
| .desc = "matching primary 160 MHz", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 - 50, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "matching primary 160 MHz & punctured secondary 160 Mhz", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 - 50, |
| .punctured = 0xf, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "matching primary 160 MHz & punctured matching", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0xc0, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 - 50, |
| .punctured = 0xc000, |
| }, |
| .compat = true, |
| }, |
| { |
| .desc = "matching primary 160 MHz & punctured not matching", |
| .c1 = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x80, |
| }, |
| .c2 = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 - 50, |
| .punctured = 0xc000, |
| }, |
| }, |
| }; |
| |
| KUNIT_ARRAY_PARAM_DESC(chandef_compat, chandef_compat_cases, desc) |
| |
| static void test_chandef_compat(struct kunit *test) |
| { |
| const struct chandef_compat_case *params = test->param_value; |
| const struct cfg80211_chan_def *ret, *expect; |
| struct cfg80211_chan_def c1 = params->c1; |
| |
| /* tests with identical ones */ |
| if (!params->c1.chan) |
| c1 = params->c2; |
| |
| KUNIT_EXPECT_EQ(test, cfg80211_chandef_valid(&c1), true); |
| KUNIT_EXPECT_EQ(test, cfg80211_chandef_valid(¶ms->c2), true); |
| |
| expect = params->compat ? ¶ms->c2 : NULL; |
| |
| ret = cfg80211_chandef_compatible(&c1, ¶ms->c2); |
| KUNIT_EXPECT_PTR_EQ(test, ret, expect); |
| |
| if (!params->c1.chan) |
| expect = &c1; |
| |
| ret = cfg80211_chandef_compatible(¶ms->c2, &c1); |
| KUNIT_EXPECT_PTR_EQ(test, ret, expect); |
| } |
| |
| static const struct chandef_dbe_case { |
| const char *desc; |
| struct cfg80211_chan_def c; |
| u8 dbe[3]; |
| bool fails; |
| u16 cf1; |
| } chandef_dbe_cases[] = { |
| { |
| .desc = "non-HT failure", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_20_NOHT, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_40, |
| .fails = true, |
| }, |
| { |
| .desc = "2.4 GHz fails", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_20, |
| .chan = &chan_2ghz_1, |
| .center_freq1 = 2412, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_40, |
| .fails = true, |
| }, |
| { |
| .desc = "DBE narrower", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_320, |
| .chan = &chan_6ghz_1, |
| .center_freq1 = 5955 + 10 + 20 + 40 + 80, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_160, |
| .fails = true, |
| }, |
| { |
| .desc = "DBE to 320-1", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_1, |
| .cf1 = 6425, |
| }, |
| { |
| .desc = "DBE to 320-2", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_2, |
| .cf1 = 6585, |
| }, |
| { |
| .desc = "bad disabled subchannel bitmap - not enough in BSS (1)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0001, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_1 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0 */ |
| .fails = true, |
| }, |
| { |
| .desc = "bad disabled subchannel bitmap - too much in BSS (1)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0001, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_1 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0x0300 */ |
| .dbe[2] = 0x03, |
| .fails = true, |
| }, |
| { |
| .desc = "bad disabled subchannel bitmap - not enough in BSS (2)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0001, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_2 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0 */ |
| .fails = true, |
| }, |
| { |
| .desc = "bad disabled subchannel bitmap - too much in BSS (2)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0001, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_2 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0x03 */ |
| .dbe[1] = 0x03, |
| .fails = true, |
| }, |
| { |
| .desc = "bad disabled subchannel bitmap - bad bitmap", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0001, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_1 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0x1100 */ |
| .dbe[2] = 0x11, |
| .fails = true, |
| }, |
| { |
| .desc = "good disabled subchannel bitmap (1)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0003, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_1 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0x0300 */ |
| .dbe[2] = 0x03, |
| .cf1 = 6425, |
| }, |
| { |
| .desc = "good disabled subchannel bitmap (2)", |
| .c = { |
| .width = NL80211_CHAN_WIDTH_160, |
| .chan = &chan_6ghz_105, |
| .center_freq1 = 6475 + 30, |
| .punctured = 0x0003, |
| }, |
| .dbe[0] = IEEE80211_UHR_DBE_OPER_BW_320_2 | |
| IEEE80211_UHR_DBE_OPER_DIS_SUBCHANNEL_BITMAP_PRES, |
| /* DBE disabled subchannel bitmap == 0x0003 */ |
| .dbe[1] = 0x03, |
| .cf1 = 6585, |
| }, |
| }; |
| |
| KUNIT_ARRAY_PARAM_DESC(chandef_dbe, chandef_dbe_cases, desc) |
| |
| static void test_chandef_dbe(struct kunit *test) |
| { |
| const struct chandef_dbe_case *params = test->param_value; |
| struct cfg80211_chan_def c = params->c; |
| int ret; |
| |
| KUNIT_EXPECT_EQ(test, cfg80211_chandef_valid(¶ms->c), true); |
| |
| ret = cfg80211_chandef_add_dbe(&c, (void *)params->dbe); |
| KUNIT_EXPECT_EQ(test, ret != 0, params->fails); |
| |
| if (params->fails) |
| return; |
| |
| KUNIT_EXPECT_EQ(test, c.center_freq1, params->cf1); |
| } |
| |
| static struct kunit_case chandef_test_cases[] = { |
| KUNIT_CASE_PARAM(test_chandef_compat, chandef_compat_gen_params), |
| KUNIT_CASE_PARAM(test_chandef_dbe, chandef_dbe_gen_params), |
| {} |
| }; |
| |
| static struct kunit_suite chandef = { |
| .name = "cfg80211-chandef", |
| .test_cases = chandef_test_cases, |
| }; |
| |
| kunit_test_suite(chandef); |
