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wifi: mac80211: Add KUnit test for ieee80211_mesh_perr_size_ok

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Add a kunit test for ieee80211_mesh_perr_size_ok(),
checking various success and failure cases.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://patch.msgid.link/20260529230952.124754-9-masashi.honma@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Masashi Honma 2026-05-30 08:09:51 +09:00 committed by Johannes Berg
parent 80da5c4305
commit 58b14058ed
1 changed files with 124 additions and 0 deletions
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124
net/mac80211/tests/elems.c
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@ -137,6 +137,109 @@ static const struct mesh_prep_parse_test_case {
KUNIT_ARRAY_PARAM_DESC(mesh_prep_parse, mesh_prep_parse_cases, desc);
static const struct mesh_perr_parse_test_case {
const char *desc;
u8 len;
u8 number_of_dst;
int ae_enabled_idx;
bool result;
} mesh_perr_parse_cases[] = {
{
.desc = "shorter than header",
.len = 1,
.number_of_dst = 1,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 0",
.len = 2,
.number_of_dst = 0,
.ae_enabled_idx = -1,
.result = true,
},
{
.desc = "number_of_dst is 20",
.len = 255,
.number_of_dst = 20,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 1, non AE, short",
.len = 14,
.number_of_dst = 1,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 1, non AE",
.len = 15,
.number_of_dst = 1,
.ae_enabled_idx = -1,
.result = true,
},
{
.desc = "number_of_dst is 1, non AE, extra short dst header",
.len = 25,
.number_of_dst = 1,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 1, non AE, extra dst header",
.len = 26,
.number_of_dst = 1,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 1, AE, short",
.len = 20,
.number_of_dst = 1,
.ae_enabled_idx = 0,
.result = false,
},
{
.desc = "number_of_dst is 1, AE",
.len = 21,
.number_of_dst = 1,
.ae_enabled_idx = 0,
.result = true,
},
{
.desc = "number_of_dst is 19, non AE, short",
.len = 2 + 13 * 19 - 1,
.number_of_dst = 19,
.ae_enabled_idx = -1,
.result = false,
},
{
.desc = "number_of_dst is 19, non AE",
.len = 2 + 13 * 19,
.number_of_dst = 19,
.ae_enabled_idx = -1,
.result = true,
},
{
.desc = "number_of_dst is 19, AE, short",
.len = 2 + 13 * 19 + 6 - 1,
.number_of_dst = 19,
.ae_enabled_idx = 18,
.result = false,
},
{
.desc = "number_of_dst is 19, AE",
.len = 2 + 13 * 19 + 6,
.number_of_dst = 19,
.ae_enabled_idx = 18,
.result = true,
},
};
KUNIT_ARRAY_PARAM_DESC(mesh_perr_parse, mesh_perr_parse_cases, desc);
static void mle_defrag(struct kunit *test)
{
struct ieee80211_elems_parse_params parse_params = {
@ -247,10 +350,31 @@ static void mesh_prep_parse(struct kunit *test)
params->result);
}
static void mesh_perr_parse(struct kunit *test)
{
const struct mesh_perr_parse_test_case *params = test->param_value;
u8 data[256] = {};
struct ieee80211_mesh_hwmp_perr *perr = (void *)data;
perr->number_of_dst = params->number_of_dst;
if (params->ae_enabled_idx > -1) {
struct ieee80211_mesh_hwmp_perr_dst *dst =
ieee80211_mesh_hwmp_perr_get_dst(
data, params->ae_enabled_idx);
dst->flags = AE_F;
}
KUNIT_EXPECT_EQ(test,
ieee80211_mesh_perr_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),
KUNIT_CASE_PARAM(mesh_prep_parse, mesh_prep_parse_gen_params),
KUNIT_CASE_PARAM(mesh_perr_parse, mesh_perr_parse_gen_params),
{}
};