mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2026-02-14 09:47:55 +01:00
3e0e31544e
The memcpy in HEX2BUF was copying the length of the buffer that was passed in, not the actual length of the converted hexstring. This test was segfaulting in the Alpine CI which uses clang/musl.
311 lines
9.9 KiB
C
311 lines
9.9 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2021 Intel Corporation. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <assert.h>
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#include <stdio.h>
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#include <ell/ell.h>
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#include "src/dpp-util.h"
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#include "src/util.h"
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#include "ell/useful.h"
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struct dpp_test_info {
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const char *uri;
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bool expect_fail;
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uint32_t expected_freqs[10];
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struct dpp_uri_info result;
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};
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struct dpp_test_info all_values = {
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.uri = "DPP:C:81/1,115/36;I:SN=4774LH2b4044;M:5254005828e5;V:2;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.result = {
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.mac = { 0x52, 0x54, 0x00, 0x58, 0x28, 0xe5 },
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.version = 2,
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},
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.expected_freqs = { 2412, 5180, 0 }
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};
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struct dpp_test_info no_type = {
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.uri = "C:81/1;K:shouldnotmatter;;",
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.expect_fail = true
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};
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struct dpp_test_info empty = {
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.uri = "DPP:",
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.expect_fail = true
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};
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struct dpp_test_info no_key = {
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.uri = "DPP:C:81/1,115/36;I:SN=4774LH2b4044;M:5254005828e5;V:2;;",
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.expect_fail = true
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};
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struct dpp_test_info data_after_terminator = {
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.uri = "DPP:K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;C:81/1;;",
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.expect_fail = true
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};
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struct dpp_test_info single_terminator = {
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.uri = "DPP:K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;",
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.expect_fail = true
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};
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struct dpp_test_info no_terminator = {
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.uri = "DPP:K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=",
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.expect_fail = true
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};
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struct dpp_test_info bad_key = {
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.uri = "DPP:K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0;;",
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.expect_fail = true
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};
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struct dpp_test_info unexpected_id = {
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.uri = "DPP:Z:somedata;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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};
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struct dpp_test_info bad_channels[] = {
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{
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.uri = "DPP:C:;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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{
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.uri = "DPP:C:81;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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{
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.uri = "DPP:C:81/;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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{
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.uri = "DPP:C:81/1,;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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{
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.uri = "DPP:C:81/1,81/;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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{
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.uri = "DPP:C:81/1,/;K:MDkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDIgADURzxmttZoIRIPWGoQMV00XHWCAQIhXruVWOz0NjlkIA=;;",
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.expect_fail = true
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},
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};
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static bool verify_info(const struct dpp_uri_info *parsed,
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const struct dpp_test_info *result)
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{
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const struct dpp_uri_info *expected = &result->result;
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uint32_t i;
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assert(!memcmp(parsed->mac, expected->mac, 6));
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assert(parsed->version == expected->version);
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assert(parsed->boot_public != NULL);
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for (i = 0; result->expected_freqs[i]; i++)
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assert(scan_freq_set_contains(parsed->freqs,
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result->expected_freqs[i]));
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return true;
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}
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static void test_uri_parse(const void *data)
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{
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const struct dpp_test_info *test_info = data;
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struct dpp_uri_info *info;
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info = dpp_parse_uri(test_info->uri);
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if (test_info->expect_fail) {
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assert(info == NULL);
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return;
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}
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assert(verify_info(info, test_info));
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dpp_free_uri_info(info);
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}
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static void test_bad_channels(const void *data)
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{
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unsigned int i;
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for (i = 0; i < L_ARRAY_SIZE(bad_channels); i++)
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test_uri_parse(&bad_channels[i]);
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}
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/*
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* B.2 Test Vectors for DPP Authentication Using P-256 for
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* Responder-only Authentication
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*/
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const char *i_proto_public_bytes = "50a532ae2a07207276418d2fa630295d45569be425aa634f02014d00a7d1f61a"
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"e14f35a5a858bccad90d126c46594c49ef82655e78888e15a32d916ac2172491";
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const char *r_boot_public_bytes = "09c585a91b4df9fd25a045201885c39cc5cfae397ddaeda957dec57fa0e3503f"
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"52bf05968198a2f92883e96a386d767579883302dbf292105c90a43694c2fd5c";
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const char *r_boot_private_bytes = "54ce181a98525f217216f59b245f60e9df30ac7f6b26c939418cfc3c42d1afa0";
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const char *r_proto_private_bytes = "f798ed2e19286f6a6efe210b1863badb99af2a14b497634dbfd2a97394fb5aa5";
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const char *r_proto_public_bytes = "5e3fb3576884887f17c3203d8a3a6c2fac722ef0e2201b61ac73bc655c709a90"
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"2d4b030669fb9eff8b0a79fa7c1a172ac2a92c626256963f9274dc90682c81e5";
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const char *k1_bytes = "3d832a02ed6d7fc1dc96d2eceab738cf01c0028eb256be33d5a21a720bfcf949";
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const char *k2_bytes = "ca08bdeeef838ddf897a5f01f20bb93dc5a895cb86788ca8c00a7664899bc310";
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const char *ke_bytes = "c8882a8ab30c878467822534138c704ede0ab1e873fe03b601a7908463fec87a";
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const char *mx_bytes = "dde2878117d69745be4f916a2dd14269d783d1d788c603bb8746beabbd1dbbbc";
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const char *nx_bytes = "92118478b75c21c2c59340c842b5bce560a535f60bc37a75fe390d738c58d8e8";
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const char *i_nonce_bytes = "13f4602a16daeb69712263b9c46cba31";
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const char *r_nonce_bytes = "3d0cfb011ca916d796f7029ff0b43393";
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const char *i_auth_bytes = "787d1189b526448d2901e7f6c22775ce514fce52fc886c1e924f2fbb8d97b210";
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const char *r_auth_bytes = "43509ef7137d8c2fbe66d802ae09dedd94d41b8cbfafb4954782014ff4a3f91c";
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const char *r_asn1 = "3039301306072a8648ce3d020106082a8648ce3d0301070322000209c585a91b"
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"4df9fd25a045201885c39cc5cfae397ddaeda957dec57fa0e3503f";
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#define HEX2BUF(s, buf, _len) { \
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size_t _len_out; \
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unsigned char *_tmp = l_util_from_hexstring(s, &_len_out); \
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memcpy(buf, _tmp, _len_out); \
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l_free(_tmp); \
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}
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#define CHECK_FROM_STR(str, bytes, __len) \
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({ \
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uint64_t __tmp[L_ECC_MAX_DIGITS]; \
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HEX2BUF(str, __tmp, __len); \
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assert(!memcmp(bytes, __tmp, __len)); \
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})
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static void test_key_derivation(const void *data)
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{
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uint64_t tmp[L_ECC_MAX_DIGITS * 2];
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const struct l_ecc_curve *curve = l_ecc_curve_from_ike_group(19);
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_auto_(l_ecc_point_free) struct l_ecc_point *i_proto_public = NULL;
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_auto_(l_ecc_point_free) struct l_ecc_point *r_boot_public = NULL;
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_auto_(l_ecc_scalar_free) struct l_ecc_scalar *r_boot_private = NULL;
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_auto_(l_ecc_scalar_free) struct l_ecc_scalar *r_proto_private = NULL;
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_auto_(l_ecc_point_free) struct l_ecc_point *r_proto_public = NULL;
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_auto_(l_ecc_scalar_free) struct l_ecc_scalar *m = NULL;
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_auto_(l_ecc_scalar_free) struct l_ecc_scalar *n = NULL;
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_auto_(l_ecc_point_free) struct l_ecc_point *from_asn1 = NULL;
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uint64_t k1[L_ECC_MAX_DIGITS];
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uint64_t k2[L_ECC_MAX_DIGITS];
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uint64_t ke[L_ECC_MAX_DIGITS];
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uint8_t i_nonce[16];
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uint8_t r_nonce[16];
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uint64_t r_auth[L_ECC_MAX_DIGITS];
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uint64_t i_auth[L_ECC_MAX_DIGITS];
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_auto_(l_free) uint8_t *asn1 = NULL;
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size_t asn1_len;
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HEX2BUF(i_proto_public_bytes, tmp, 64);
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i_proto_public = l_ecc_point_from_data(curve,
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L_ECC_POINT_TYPE_FULL,
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tmp, 64);
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assert(i_proto_public);
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HEX2BUF(r_boot_public_bytes, tmp, 64);
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r_boot_public = l_ecc_point_from_data(curve,
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L_ECC_POINT_TYPE_FULL,
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tmp, 64);
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assert(r_boot_public);
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HEX2BUF(r_asn1, tmp, sizeof(tmp));
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asn1 = dpp_point_to_asn1(r_boot_public, &asn1_len);
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from_asn1 = dpp_point_from_asn1(asn1, asn1_len);
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assert(l_ecc_points_are_equal(from_asn1, r_boot_public));
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assert(asn1_len == 59);
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assert(memcmp(tmp, asn1, asn1_len) == 0);
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HEX2BUF(r_proto_public_bytes, tmp, 64);
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r_proto_public = l_ecc_point_from_data(curve,
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L_ECC_POINT_TYPE_FULL,
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tmp, 64);
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assert(r_proto_public);
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HEX2BUF(r_boot_private_bytes, tmp, 32);
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r_boot_private = l_ecc_scalar_new(curve, tmp, 32);
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assert(r_boot_private);
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HEX2BUF(r_proto_private_bytes, tmp, 32);
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r_proto_private = l_ecc_scalar_new(curve, tmp, 32);
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assert(r_proto_private);
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m = dpp_derive_k1(i_proto_public, r_boot_private, k1);
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assert(m);
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CHECK_FROM_STR(k1_bytes, k1, 32);
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l_ecc_scalar_get_data(m, tmp, sizeof(tmp));
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CHECK_FROM_STR(mx_bytes, tmp, 32);
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n = dpp_derive_k2(i_proto_public, r_proto_private, k2);
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assert(n);
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CHECK_FROM_STR(k2_bytes, k2, 32);
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l_ecc_scalar_get_data(n, tmp, sizeof(tmp));
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CHECK_FROM_STR(nx_bytes, tmp, 32);
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HEX2BUF(i_nonce_bytes, i_nonce, 16);
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HEX2BUF(r_nonce_bytes, r_nonce, 16);
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dpp_derive_ke(i_nonce, r_nonce, m, n, NULL, ke);
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CHECK_FROM_STR(ke_bytes, ke, 32);
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dpp_derive_r_auth(i_nonce, r_nonce, 16, i_proto_public, r_proto_public,
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NULL, r_boot_public, r_auth);
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CHECK_FROM_STR(r_auth_bytes, r_auth, 32);
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dpp_derive_i_auth(r_nonce, i_nonce, 16, r_proto_public, i_proto_public,
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r_boot_public, NULL, i_auth);
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CHECK_FROM_STR(i_auth_bytes, i_auth, 32);
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}
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int main(int argc, char *argv[])
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{
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l_test_init(&argc, &argv);
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if (l_checksum_is_supported(L_CHECKSUM_SHA256, true) &&
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l_getrandom_is_supported())
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l_test_add("DPP test key derivation",
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test_key_derivation, NULL);
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l_test_add("DPP URI parse", test_uri_parse, &all_values);
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l_test_add("DPP URI no type", test_uri_parse, &no_type);
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l_test_add("DPP URI empty", test_uri_parse, &empty);
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l_test_add("DPP URI no key", test_uri_parse, &no_key);
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l_test_add("DPP URI data after terminator", test_uri_parse,
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&data_after_terminator);
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l_test_add("DPP URI single terminator", test_uri_parse,
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&single_terminator);
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l_test_add("DPP URI no terminator", test_uri_parse,
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&no_terminator);
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l_test_add("DPP URI bad key", test_uri_parse, &bad_key);
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l_test_add("DPP URI bad channels", test_bad_channels, &bad_channels);
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l_test_add("DPP URI unexpected ID", test_uri_parse, &unexpected_id);
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return l_test_run();
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}
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