hostapd/tests/test-bss.c

/*
 * WPA BSS parsing - test program
 * Copyright (C) 2023 Intel Corporation
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include <assert.h>

#include "utils/includes.h"

#include "utils/common.h"
#include "wpa_supplicant_i.h"
#include "bss.h"

#define ASSERT_CMP_INT(a, cmp, b) { \
	ssize_t __a = (a); ssize_t __b = (b);		\
		if (!(__a cmp __b)) {			\
			wpa_printf(MSG_ERROR, "Assertion failed: %ld %s %ld", \
				   __a, #cmp, __b);	\
			abort();			\
		}					\
	}

void test_parse_basic_ml(struct wpa_supplicant *wpa_s, u8 mld_id)
{
	const u8 mld_ie[] = {
		/* RNR */
		WLAN_EID_REDUCED_NEIGHBOR_REPORT, 40,
		0x00, 0x10, 0x51, 0x01, 0xff, 0x00, 0x11, 0x22,
		0x33, 0x44, 0x01, 0x68, 0x05, 0x2d, 0xa6, 0x42,
		0xfe, mld_id, 0x10, 0x00, 0x00, 0x10, 0x51, 0x06,
		0xff, 0x00, 0x11, 0x22, 0x33, 0x44, 0x02, 0x68,
		0x05, 0x2d, 0xa6, 0x42, 0xfe, mld_id, 0x11, 0x00,
		/* basic ML */
		WLAN_EID_EXTENSION, 1 + 15, WLAN_EID_EXT_MULTI_LINK,
		0xb0, 0x01, 0x0d, 0x02, 0x00, 0x00, 0x00, 0x07,
		0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
	};
	const u8 mbssid_idx_ie[] = {
		WLAN_EID_MULTIPLE_BSSID_INDEX, 1, mld_id,
	};
	struct {
		struct wpa_bss bss;
		u8 ies[sizeof(mld_ie) + sizeof(mbssid_idx_ie)];
	} bss;
	u8 ap_mld_addr[ETH_ALEN];
	u16 missing_links;
	u8 ret;
	u8 ap_mld_id;

	memcpy(bss.bss.ies, mld_ie, sizeof(mld_ie));
	bss.bss.ie_len = sizeof(mld_ie);

	if (mld_id > 0) {
		memcpy(bss.bss.ies + sizeof(mld_ie), mbssid_idx_ie,
		       sizeof(mbssid_idx_ie));
		bss.bss.ie_len += sizeof(mbssid_idx_ie);
	}

	ret = wpa_bss_parse_basic_ml_element(wpa_s, &bss.bss, ap_mld_addr,
					     &missing_links, NULL, &ap_mld_id);

	ASSERT_CMP_INT(ret, ==, 0);
	ASSERT_CMP_INT(bss.bss.valid_links, ==, 1);
	ASSERT_CMP_INT(missing_links, ==, 0x0002);
	ASSERT_CMP_INT(ap_mld_id, ==, mld_id);
}

#define RUN_TEST(func, ...) do {			\
		func(wpa_s, __VA_ARGS__);		\
		printf("\nok " #func " " #__VA_ARGS__ "\n\n");		\
	} while (false)

int main(void)
{
	struct wpa_interface iface = {
		.ifname = "dummy",
	};
	struct wpa_global *global;
	struct wpa_params params = {
		.wpa_debug_level = MSG_DEBUG,
	};
	struct wpa_supplicant *wpa_s;

	global = wpa_supplicant_init(&params);

	wpa_s = wpa_supplicant_add_iface(global, &iface, NULL);
	assert(wpa_s);

	RUN_TEST(test_parse_basic_ml, 0);
	RUN_TEST(test_parse_basic_ml, 1);

	return 0;
}