mirror of
https://github.com/torvalds/linux.git
synced 2024-12-02 09:01:34 +00:00
5a21f0eae1
Rework the data structures to hide element parsing internals from the users. Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240228094902.19c610b529e2.Ie7ea2dcb6713911590ace6583a4748f32dc37df2@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* KUnit tests for element parsing
|
|
*
|
|
* Copyright (C) 2023-2024 Intel Corporation
|
|
*/
|
|
#include <kunit/test.h>
|
|
#include "../ieee80211_i.h"
|
|
|
|
MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING);
|
|
|
|
static void mle_defrag(struct kunit *test)
|
|
{
|
|
struct ieee80211_elems_parse_params parse_params = {
|
|
.link_id = 12,
|
|
.from_ap = true,
|
|
.mode = IEEE80211_CONN_MODE_EHT,
|
|
};
|
|
struct ieee802_11_elems *parsed;
|
|
struct sk_buff *skb;
|
|
u8 *len_mle, *len_prof;
|
|
int i;
|
|
|
|
skb = alloc_skb(1024, GFP_KERNEL);
|
|
KUNIT_ASSERT_NOT_NULL(test, skb);
|
|
|
|
if (skb_pad(skb, skb_tailroom(skb))) {
|
|
KUNIT_FAIL(test, "failed to pad skb");
|
|
return;
|
|
}
|
|
|
|
/* build a multi-link element */
|
|
skb_put_u8(skb, WLAN_EID_EXTENSION);
|
|
len_mle = skb_put(skb, 1);
|
|
skb_put_u8(skb, WLAN_EID_EXT_EHT_MULTI_LINK);
|
|
|
|
put_unaligned_le16(IEEE80211_ML_CONTROL_TYPE_BASIC,
|
|
skb_put(skb, 2));
|
|
/* struct ieee80211_mle_basic_common_info */
|
|
skb_put_u8(skb, 7); /* includes len field */
|
|
skb_put_data(skb, "\x00\x00\x00\x00\x00\x00", ETH_ALEN); /* MLD addr */
|
|
|
|
/* with a STA profile inside */
|
|
skb_put_u8(skb, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE);
|
|
len_prof = skb_put(skb, 1);
|
|
put_unaligned_le16(IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE |
|
|
parse_params.link_id,
|
|
skb_put(skb, 2));
|
|
skb_put_u8(skb, 1); /* fake sta_info_len - includes itself */
|
|
/* put a bunch of useless elements into it */
|
|
for (i = 0; i < 20; i++) {
|
|
skb_put_u8(skb, WLAN_EID_SSID);
|
|
skb_put_u8(skb, 20);
|
|
skb_put(skb, 20);
|
|
}
|
|
|
|
/* fragment STA profile */
|
|
ieee80211_fragment_element(skb, len_prof,
|
|
IEEE80211_MLE_SUBELEM_FRAGMENT);
|
|
/* fragment MLE */
|
|
ieee80211_fragment_element(skb, len_mle, WLAN_EID_FRAGMENT);
|
|
|
|
parse_params.start = skb->data;
|
|
parse_params.len = skb->len;
|
|
parsed = ieee802_11_parse_elems_full(&parse_params);
|
|
/* should return ERR_PTR or valid, not NULL */
|
|
KUNIT_EXPECT_NOT_NULL(test, parsed);
|
|
|
|
if (IS_ERR_OR_NULL(parsed))
|
|
goto free_skb;
|
|
|
|
KUNIT_EXPECT_NOT_NULL(test, parsed->ml_basic);
|
|
KUNIT_EXPECT_EQ(test,
|
|
parsed->ml_basic_len,
|
|
2 /* control */ +
|
|
7 /* common info */ +
|
|
2 /* sta profile element header */ +
|
|
3 /* sta profile header */ +
|
|
20 * 22 /* sta profile data */ +
|
|
2 /* sta profile fragment element */);
|
|
KUNIT_EXPECT_NOT_NULL(test, parsed->prof);
|
|
KUNIT_EXPECT_EQ(test,
|
|
parsed->sta_prof_len,
|
|
3 /* sta profile header */ +
|
|
20 * 22 /* sta profile data */);
|
|
|
|
kfree(parsed);
|
|
free_skb:
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
static struct kunit_case element_parsing_test_cases[] = {
|
|
KUNIT_CASE(mle_defrag),
|
|
{}
|
|
};
|
|
|
|
static struct kunit_suite element_parsing = {
|
|
.name = "mac80211-element-parsing",
|
|
.test_cases = element_parsing_test_cases,
|
|
};
|
|
|
|
kunit_test_suite(element_parsing);
|