krackattacks/src/wps/wps_module_tests.c

/*
 * WPS module tests
 * Copyright (c) 2014, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "wps_attr_parse.h"

struct wps_attr_parse_test {
	const char *data;
	int result;
	int extra;
};

const struct wps_attr_parse_test wps_attr_parse_test_cases[] = {
	/* Empty message */
	{ "", 0, 0 },
	/* Truncated attribute header */
	{ "10", -1, 0 },
	{ "1010", -1, 0 },
	{ "101000", -1, 0 },
	/* Attribute overflow */
	{ "10100001", -1, 0 },
#ifdef CONFIG_WPS_STRICT
	{ "10270000001057000101", -1, 0 },
	{ "1027000010570001010000000000", -1, 0 },
#else /* CONFIG_WPS_STRICT */
	/* Network Key workaround */
	{ "10270000001057000101", 0, 1 },
	{ "10230000001057000101", -1, 0 },
	{ "10270000101057000101", -1, 0 },
	/* Mac OS X 10.6 padding workaround */
	{ "1027000010570001010000000000", 0, 1 },
	{ "1027000010570001010000000000000001000000", -1, 0 },
#endif /* CONFIG_WPS_STRICT */
	/* Version */
	{ "104a000110", 0, 0 },
	{ "104a0000", -1, 0 },
	/* Message Type */
	{ "1022000101", 0, 0 },
	{ "10220000", -1, 0 },
	/* Enrollee Nonce */
	{ "101a001000112233445566778899aabbccddeeff", 0, 0 },
	{ "101a00111122334455667788990011223344556677", -1, 0 },
	/* Registrar Nonce */
	{ "1039001000112233445566778899aabbccddeeff", 0, 0 },
	{ "103900111122334455667788990011223344556677", -1, 0 },
	/* UUID-E */
	{ "1047001000112233445566778899aabbccddeeff", 0, 0 },
	{ "10470000", -1, 0 },
	{ "104700111122334455667788990011223344556677", -1, 0 },
	/* UUID-R */
	{ "1048001000112233445566778899aabbccddeeff", 0, 0 },
	{ "10480000", -1, 0 },
	{ "104800111122334455667788990011223344556677", -1, 0 },
	/* Auth Type Flags */
	{ "100400021122", 0, 0 },
	{ "10040001ff", -1, 0 },
	/* Encr Type Flags */
	{ "101000021122", 0, 0 },
	{ "10100001ff", -1, 0 },
	/* Connection Type Flags */
	{ "100d0001ff", 0, 0 },
	{ "100d0002ffff", -1, 0 },
	/* Config Methods */
	{ "10080002ffff", 0, 0 },
	{ "10080001ff", -1, 0 },
	/* Selected Registrar Config Methods */
	{ "10530002ffff", 0, 0 },
	{ "10530001ff", -1, 0 },
	/* Primary Device Type */
	{ "105400081122334455667788", 0, 0 },
	{ "105400111122334455667788990011223344556677", -1, 0 },
	/* RF Bands */
	{ "103c0001ff", 0, 0 },
	{ "103c0002ffff", -1, 0 },
	/* Association State */
	{ "10020002ffff", 0, 0 },
	{ "10020001ff", -1, 0 },
	/* Config Error */
	{ "100900020001", 0, 0 },
	{ "10090001ff", -1, 0 },
	/* Device Password ID */
	{ "101200020004", 0, 0 },
	{ "10120001ff", -1, 0 },
	/* OOB Device Password */
	{ "102c001611223344556677889900112233445566778899000007", 0, 0 },
	{ "102c0036112233445566778899001122334455667788990011223344556677889900112233445566778899001122334455667788990011223344", 0, 0 },
	{ "102c0001ff", -1, 0 },
	{ "102c003711223344556677889900112233445566778899001122334455667788990011223344556677889900112233445566778899001122334455", -1, 0 },
	{ "102c002511223344556677889900112233445566778899001122334455667788990011223344556677", -1, 0 },
	/* OS Version */
	{ "102d000411223344", 0, 0 },
	{ "102d00111122334455667788990011223344556677", -1, 0 },
	/* WPS State */
	{ "1044000101", 0, 0 },
	{ "10440002ffff", -1, 0 },
	/* Authenticator */
	{ "100500081122334455667788", 0, 0 },
	{ "10050000", -1, 0 },
	{ "100500111122334455667788990011223344556677", -1, 0 },
	/* R-Hash1 */
	{ "103d00201122334455667788990011223344556677889900112233445566778899001122", 0, 0 },
	{ "103d0000", -1, 0 },
	{ "103d0021112233445566778899001122334455667788990011223344556677889900112233", -1, 0 },
	/* R-Hash2 */
	{ "103e00201122334455667788990011223344556677889900112233445566778899001122", 0, 0 },
	{ "103e0000", -1, 0 },
	{ "103e0021112233445566778899001122334455667788990011223344556677889900112233", -1, 0 },
	/* E-Hash1 */
	{ "101400201122334455667788990011223344556677889900112233445566778899001122", 0, 0 },
	{ "10140000", -1, 0 },
	{ "10140021112233445566778899001122334455667788990011223344556677889900112233", -1, 0 },
	/* E-Hash2 */
	{ "101500201122334455667788990011223344556677889900112233445566778899001122", 0, 0 },
	{ "10150000", -1, 0 },
	{ "10150021112233445566778899001122334455667788990011223344556677889900112233", -1, 0 },
	/* R-SNonce1 */
	{ "103f001011223344556677889900112233445566", 0, 0 },
	{ "103f0000", -1, 0 },
	{ "103f00111122334455667788990011223344556677", -1, 0 },
	/* R-SNonce2 */
	{ "1040001011223344556677889900112233445566", 0, 0 },
	{ "10400000", -1, 0 },
	{ "104000111122334455667788990011223344556677", -1, 0 },
	/* E-SNonce1 */
	{ "1016001011223344556677889900112233445566", 0, 0 },
	{ "10160000", -1, 0 },
	{ "101600111122334455667788990011223344556677", -1, 0 },
	/* E-SNonce2 */
	{ "1017001011223344556677889900112233445566", 0, 0 },
	{ "10170000", -1, 0 },
	{ "101700111122334455667788990011223344556677", -1, 0 },
	/* Key Wrap Authenticator */
	{ "101e00081122334455667788", 0, 0 },
	{ "101e0000", -1, 0 },
	{ "101e0009112233445566778899", -1, 0 },
	/* Authentication Type */
	{ "100300020001", 0, 0 },
	{ "10030001ff", -1, 0 },
	/* Encryption Type */
	{ "100f00020001", 0, 0 },
	{ "100f0001ff", -1, 0 },
	/* Network Index */
	{ "1026000101", 0, 0 },
	{ "10260002ffff", -1, 0 },
	/* Network Key Index */
	{ "1028000101", 0, 3 },
	{ "10280002ffff", -1, 0 },
	/* MAC Address */
	{ "10200006112233445566", 0, 0 },
	{ "10200000", -1, 0 },
	{ "1020000711223344556677", -1, 0 },
	/* Selected Registrar */
	{ "1041000101", 0, 0 },
	{ "10410002ffff", -1, 0 },
	/* Request Type */
	{ "103a000101", 0, 0 },
	{ "103a0002ffff", -1, 0 },
	/* Response Type */
	{ "103b000101", 0, 0 },
	{ "103b0002ffff", -1, 0 },
	/* Manufacturer */
	{ "10210000", 0, 0 },
	/* Model Name */
	{ "10230000", 0, 0 },
	/* Model Number */
	{ "10240000", 0, 0 },
	/* Serial Number */
	{ "10420000", 0, 0 },
	/* Device Name */
	{ "10110000", 0, 0 },
	/* Public Key */
	{ "10320000", 0, 0 },
	/* Enc Settings */
	{ "10180000", 0, 0 },
	/* SSID */
	{ "10450000", 0, 0 },
	/* AP Setup Locked */
	{ "1057000101", 0, 0 },
	{ "10570002ffff", -1, 0 },
	/* Requested Device Type */
	{ "106a00081122334455667788", 0, 0 },
	{ "106a0000", -1, 0 },
	{ "106a0009112233445566778899", -1, 0 },
	/* More than maximum Requested Device Type attributes */
	{ "106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788106a00081122334455667788", 0, 4 },
	/* Secondary Device Type List */
	{ "105500081122334455667788", 0, 0 },
	{ "1055000711223344556677", -1, 0 },
	{ "1055008811223344556677889900112233445566778899001122334455667788990011223344556677889900112233445566778899001122334455667788990011223344556677889900112233445566778899001122334455667788990011223344556677889900112233445566778899001122334455667788990011223344556677889900112233445566", -1, 0 },
	/* AP Channel */
	{ "100100020001", 0, 0 },
	{ "1001000101", -1, 0 },
	/* Skip invalid Vendor Extension */
	{ "10490000", 0, 0 },
	{ "1049000100", 0, 0 },
	{ "104900020000", 0, 0 },
	/* Too long unknown vendor extension */
	{ "10490401"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "112233445566778899001122334455667788990011223344556677889900"
	  "1122334455", -1, 0 },
	/* Maximum unknown vendor extensions */
	{ "10490003111111104900032222221049000333333310490003444444104900035555551049000366666610490003777777104900038888881049000399999910490003AAAAAA", 0, 5 },
	/* More than maximum unknown vendor extensions */
	{ "10490003111111104900032222221049000333333310490003444444104900035555551049000366666610490003777777104900038888881049000399999910490003AAAAAA10490003BBBBBB", -1, 0 },
	/* WFA vendor extensions */
	{ "1049000300372a", 0, 0 },
	{ "1049000400372a00", 0, 0 },
	{ "1049000500372a0001", 0, 0 },
	{ "1049001600372a0001ff0100020101030101040101ff00fe0101", 0, 6 },
	/* Invalid Version2 length */
	{ "1049000500372a0000", -1, 0 },
	/* Invalid Network Key Shareable length */
	{ "1049000500372a0200", -1, 0 },
	/* Invalid Requedt To Enroll length */
	{ "1049000500372a0300", -1, 0 },
	/* Invalid Settings Delay Time length */
	{ "1049000500372a0400", -1, 0 },
	/* More than maximum Credential attributes */
	{ "100e0000100e0000100e0000100e0000100e0000100e0000100e0000100e0000100e0000100e0000100e0000100e0000", 0, 2 },
};


static int wps_attr_parse_tests(void)
{
	struct wps_parse_attr attr;
	unsigned int i;
	int ret = 0;

	wpa_printf(MSG_INFO, "WPS attribute parsing tests");

	for (i = 0; i < ARRAY_SIZE(wps_attr_parse_test_cases); i++) {
		struct wpabuf *buf;
		size_t len;
		const struct wps_attr_parse_test *test =
			&wps_attr_parse_test_cases[i];

		len = os_strlen(test->data) / 2;
		buf = wpabuf_alloc(len);
		if (buf == NULL)
			return -1;
		if (hexstr2bin(test->data, wpabuf_put(buf, len), len) < 0) {
			wpabuf_free(buf);
			return -1;
		}
		if (wps_parse_msg(buf, &attr) != test->result) {
			wpa_printf(MSG_ERROR, "WPS attribute parsing test %u failed: %s",
				   i, test->data);
			ret = -1;
		}
		switch (test->extra) {
		case 1:
			if (!attr.network_key || !attr.ap_setup_locked)
				ret = -1;
			break;
		case 2:
			if (attr.num_cred != MAX_CRED_COUNT)
				ret = -1;
			break;
		case 3:
			if (!attr.network_key_idx)
				ret = -1;
			break;
		case 4:
			if (attr.num_req_dev_type != MAX_REQ_DEV_TYPE_COUNT)
				ret = -1;
			break;
		case 5:
			if (attr.num_vendor_ext != MAX_WPS_PARSE_VENDOR_EXT)
				ret = -1;
			break;
		case 6:
			if (!attr.version2 ||
			    !attr.authorized_macs ||
			    !attr.network_key_shareable ||
			    !attr.request_to_enroll ||
			    !attr.settings_delay_time)
				ret = -1;
			break;
		}
		wpabuf_free(buf);
	}

	return ret;
}


int wps_module_tests(void)
{
	int ret = 0;

	wpa_printf(MSG_INFO, "WPS module tests");

	if (wps_attr_parse_tests() < 0)
		ret = -1;

	return ret;
}