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wifi: mac80211: Add KUnit test for ieee80211_mesh_preq_size_ok

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Add a kunit test for ieee80211_mesh_preq_size_ok(),
checking various success and failure cases.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-7-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Masashi Honma 2026-05-30 08:09:49 +09:00 committed by Johannes Berg
parent 4ec9ea8a58
commit 42d02dce88
1 changed files with 105 additions and 0 deletions
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105
net/mac80211/tests/elems.c
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@ -9,6 +9,94 @@
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
static const struct mesh_preq_parse_test_case {
const char *desc;
u8 len;
bool ae_enabled;
u8 target_count;
bool result;
} mesh_preq_parse_cases[] = {
{
.desc = "shorter than header",
.len = 16,
.ae_enabled = false,
.target_count = 1,
.result = false,
},
{
.desc = "too short non AE, target count is not included",
.len = 29,
.ae_enabled = false,
.target_count = 1,
.result = false,
},
{
.desc = "too short non AE, target count is 1",
.len = 36,
.ae_enabled = false,
.target_count = 1,
.result = false,
},
{
.desc = "too short AE, target count is not included",
.len = 35,
.ae_enabled = true,
.target_count = 1,
.result = false,
},
{
.desc = "too short AE, target count is 1",
.len = 42,
.ae_enabled = true,
.target_count = 1,
.result = false,
},
{
.desc = "target count is zero",
.len = 26,
.ae_enabled = false,
.target_count = 0,
.result = false,
},
{
.desc = "target count is 21",
.len = 255,
.ae_enabled = false,
.target_count = 21,
.result = false,
},
{
.desc = "non AE, target count is 1",
.len = 37,
.ae_enabled = false,
.target_count = 1,
.result = true,
},
{
.desc = "non AE, target count is 20",
.len = 246,
.ae_enabled = false,
.target_count = 20,
.result = true,
},
{
.desc = "AE, target count is 1",
.len = 43,
.ae_enabled = true,
.target_count = 1,
.result = true,
},
{
.desc = "AE, target count is 20",
.len = 252,
.ae_enabled = true,
.target_count = 20,
.result = true,
},
};
KUNIT_ARRAY_PARAM_DESC(mesh_preq_parse, mesh_preq_parse_cases, desc);
static void mle_defrag(struct kunit *test)
{
struct ieee80211_elems_parse_params parse_params = {
@ -91,8 +179,25 @@ static void mle_defrag(struct kunit *test)
kfree_skb(skb);
}
static void mesh_preq_parse(struct kunit *test)
{
const struct mesh_preq_parse_test_case *params = test->param_value;
u8 data[64] = {};
struct ieee80211_mesh_hwmp_preq_top *top = (void *)data;
struct ieee80211_mesh_hwmp_preq_bottom *bottom;
top->flags = params->ae_enabled ? AE_F : 0;
bottom = ieee80211_mesh_hwmp_preq_get_bottom(data);
bottom->target_count = params->target_count;
KUNIT_EXPECT_EQ(test,
ieee80211_mesh_preq_size_ok(data, params->len),
params->result);
}
static struct kunit_case element_parsing_test_cases[] = {
KUNIT_CASE(mle_defrag),
KUNIT_CASE_PARAM(mesh_preq_parse, mesh_preq_parse_gen_params),
{}
};