103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* KUnit tests for element parsing
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*
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* Copyright (C) 2023 Intel Corporation
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*/
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#include <kunit/test.h>
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#include "../ieee80211_i.h"
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MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING);
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static void mle_defrag(struct kunit *test)
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{
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struct ieee80211_elems_parse_params parse_params = {
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.link_id = 12,
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.from_ap = true,
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.mode = IEEE80211_CONN_MODE_EHT,
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};
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struct ieee802_11_elems *parsed;
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struct sk_buff *skb;
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u8 *len_mle, *len_prof;
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int i;
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skb = alloc_skb(1024, GFP_KERNEL);
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KUNIT_ASSERT_NOT_NULL(test, skb);
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if (skb_pad(skb, skb_tailroom(skb))) {
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KUNIT_FAIL(test, "failed to pad skb");
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return;
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}
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/* build a multi-link element */
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skb_put_u8(skb, WLAN_EID_EXTENSION);
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len_mle = skb_put(skb, 1);
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skb_put_u8(skb, WLAN_EID_EXT_EHT_MULTI_LINK);
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put_unaligned_le16(IEEE80211_ML_CONTROL_TYPE_BASIC,
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skb_put(skb, 2));
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/* struct ieee80211_mle_basic_common_info */
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skb_put_u8(skb, 7); /* includes len field */
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skb_put_data(skb, "\x00\x00\x00\x00\x00\x00", ETH_ALEN); /* MLD addr */
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/* with a STA profile inside */
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skb_put_u8(skb, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE);
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len_prof = skb_put(skb, 1);
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put_unaligned_le16(IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE |
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parse_params.link_id,
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skb_put(skb, 2));
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skb_put_u8(skb, 1); /* fake sta_info_len - includes itself */
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/* put a bunch of useless elements into it */
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for (i = 0; i < 20; i++) {
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skb_put_u8(skb, WLAN_EID_SSID);
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skb_put_u8(skb, 20);
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skb_put(skb, 20);
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}
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/* fragment STA profile */
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ieee80211_fragment_element(skb, len_prof,
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IEEE80211_MLE_SUBELEM_FRAGMENT);
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/* fragment MLE */
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ieee80211_fragment_element(skb, len_mle, WLAN_EID_FRAGMENT);
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parse_params.start = skb->data;
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parse_params.len = skb->len;
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parsed = ieee802_11_parse_elems_full(&parse_params);
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/* should return ERR_PTR or valid, not NULL */
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KUNIT_EXPECT_NOT_NULL(test, parsed);
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if (IS_ERR_OR_NULL(parsed))
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goto free_skb;
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KUNIT_EXPECT_NOT_NULL(test, parsed->ml_basic_elem);
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KUNIT_EXPECT_EQ(test,
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parsed->ml_basic_len,
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2 /* control */ +
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7 /* common info */ +
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2 /* sta profile element header */ +
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3 /* sta profile header */ +
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20 * 22 /* sta profile data */ +
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2 /* sta profile fragment element */);
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KUNIT_EXPECT_NOT_NULL(test, parsed->prof);
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KUNIT_EXPECT_EQ(test,
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parsed->sta_prof_len,
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3 /* sta profile header */ +
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20 * 22 /* sta profile data */);
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kfree(parsed);
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free_skb:
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kfree_skb(skb);
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}
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static struct kunit_case element_parsing_test_cases[] = {
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KUNIT_CASE(mle_defrag),
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{}
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};
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static struct kunit_suite element_parsing = {
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.name = "mac80211-element-parsing",
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.test_cases = element_parsing_test_cases,
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};
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kunit_test_suite(element_parsing);
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