mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-11-22 23:09:34 +01:00
562 lines
15 KiB
C
562 lines
15 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2018 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 <string.h>
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#include <assert.h>
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#include <ell/ell.h>
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#include "src/util.h"
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#include "src/ie.h"
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#include "src/handshake.h"
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#include "src/mpdu.h"
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#include "src/sae.h"
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struct test_handshake_state {
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struct handshake_state super;
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};
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struct test_data {
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/* flag for testing anti clogging */
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bool test_anti_clogging;
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/* true if a commit message was sent and verified */
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bool commit_success;
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/* true if a confirm message was sent and verified */
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bool confirm_success;
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/* true if a rejection packet was sent */
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bool tx_reject_occurred;
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/* true if the tx function was called */
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bool tx_called;
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/* copy of clogging token (if present) */
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uint8_t test_clogging_token[32];
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/* copy of last packet sent */
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uint8_t tx_packet[512];
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size_t tx_packet_len;
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/* status in complete callback */
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uint16_t status;
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struct handshake_state *handshake;
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};
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static uint8_t spa[] = {2, 0, 0, 0, 0, 0};
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static uint8_t aa[] = {2, 0, 0, 0, 0, 1};
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static char *passphrase = "secret123";
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static void test_handshake_state_free(struct handshake_state *hs)
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{
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struct test_handshake_state *ths =
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container_of(hs, struct test_handshake_state, super);
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l_free(ths);
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}
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static struct handshake_state *test_handshake_state_new(uint32_t ifindex)
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{
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struct test_handshake_state *ths;
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ths = l_new(struct test_handshake_state, 1);
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ths->super.ifindex = ifindex;
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ths->super.free = test_handshake_state_free;
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return &ths->super;
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}
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static void test_complete_func(uint16_t status, void *user_data)
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{
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struct test_data *td = user_data;
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td->status = status;
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}
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static int test_tx_func(const uint8_t *dest, const uint8_t *frame, size_t len,
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void *user_data)
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{
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struct test_data *td = user_data;
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uint16_t trans;
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td->tx_called = true;
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memset(td->tx_packet, 0, sizeof(td->tx_packet));
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memcpy(td->tx_packet, frame, len);
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td->tx_packet_len = len;
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assert(!memcmp(dest, aa, 6));
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if (len <= 6 && l_get_u16(frame + 2) != 0) {
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td->tx_reject_occurred = true;
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return 0;
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}
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trans = l_get_u16(frame); /* transaction */
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switch (trans) {
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case 1:
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assert(l_get_u16(frame + 2) == 0); /* status */
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assert(l_get_u16(frame + 4) == 19); /* group */
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if (len > 102) {
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/* clogging token */
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assert(len == 134);
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assert(!memcmp(frame + 6, td->test_clogging_token, 32));
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} else {
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assert(len == 102);
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}
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td->commit_success = true;
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return 0;
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case 2:
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assert(l_get_u16(frame + 2) == 0);
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assert(len == 38);
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td->confirm_success = true;
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return 0;
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}
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assert(false);
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return 0;
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}
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static struct sae_sm *test_initialize(struct test_data *td)
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{
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struct sae_sm *sm;
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struct handshake_state *hs = test_handshake_state_new(1);
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td->handshake = hs;
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handshake_state_set_supplicant_address(hs, spa);
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handshake_state_set_authenticator_address(hs, aa);
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handshake_state_set_passphrase(hs, passphrase);
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memset(td->test_clogging_token, 0xde, 32);
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sm = sae_sm_new(hs, test_tx_func, test_complete_func, td);
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td->commit_success = false;
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sae_start(sm);
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assert(td->commit_success == true);
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return sm;
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}
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static void test_destruct(struct test_data *td)
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{
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handshake_state_free(td->handshake);
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l_free(td);
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}
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static uint8_t aa_commit[] = {
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0x01, 0x00, 0x00, 0x00, 0x13, 0x00, 0x50, 0x5b, 0xb2, 0x1f, 0xaf, 0x7d,
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0xaf, 0x14, 0x7c, 0x7b, 0x19, 0xc9, 0x72, 0x82, 0xbc, 0x1a, 0xdb, 0xa1,
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0xbd, 0x6e, 0x5a, 0xc7, 0x58, 0x0a, 0x65, 0x1f, 0xd2, 0xde, 0xb0, 0x66,
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0xa5, 0xf9, 0x3e, 0x95, 0x4a, 0xe1, 0x83, 0xdb, 0x8a, 0xf5, 0x47, 0x8a,
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0x9d, 0x88, 0x5b, 0x58, 0xb9, 0x5b, 0xfb, 0x99, 0xff, 0xbe, 0xa0, 0xe8,
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0x70, 0x9d, 0x99, 0x2e, 0x8f, 0xa3, 0x53, 0x57, 0x3c, 0x49, 0x81, 0x0e,
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0xbc, 0x8f, 0xbc, 0xe7, 0x77, 0x8a, 0x5b, 0xf0, 0xae, 0x4a, 0xfb, 0xcd,
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0x81, 0xc0, 0x97, 0xb2, 0xf8, 0xb9, 0x12, 0xed, 0x3b, 0xd5, 0x3c, 0x5c,
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0xb2, 0x3a, 0xcc, 0x22, 0xe3, 0x9e
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};
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static uint8_t aa_confirm[] = {
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0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x0e, 0xf7, 0x5c, 0x1c, 0xab,
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0x7c, 0x29, 0xa1, 0x79, 0x22, 0xe4, 0x3b, 0x64, 0xb8, 0xf0, 0x70, 0x25,
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0x40, 0xcc, 0x78, 0x81, 0x27, 0x12, 0xca, 0xa9, 0xf5, 0xe5, 0x0f, 0xa7,
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0x73, 0x6d
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};
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static void test_confirm_timeout(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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int i;
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sae_rx_packet(sm, aa, aa_commit, sizeof(aa_commit));
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assert(td->confirm_success);
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assert(l_get_u16(td->tx_packet + 4) == 1);
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for (i = 1; i < 5; i++) {
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sae_timeout(sm);
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assert(l_get_u16(td->tx_packet + 4) == i + 1);
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}
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sae_timeout(sm);
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assert(td->status != 0);
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test_destruct(td);
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}
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static void test_commit_timeout(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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uint8_t last_packet[512];
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int i;
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memcpy(last_packet, td->tx_packet, td->tx_packet_len);
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for (i = 0; i < 4; i++) {
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sae_timeout(sm);
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assert(!memcmp(last_packet, td->tx_packet, td->tx_packet_len));
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memcpy(last_packet, td->tx_packet, td->tx_packet_len);
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}
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sae_timeout(sm);
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assert(td->status != 0);
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test_destruct(td);
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}
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static void test_clogging(const void *arg)
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{
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uint8_t frame[38];
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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l_put_u16(1, frame);
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l_put_u16(MMPDU_REASON_CODE_ANTI_CLOGGING_TOKEN_REQ, frame + 2);
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l_put_u16(19, frame + 4);
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memcpy(frame + 6, td->test_clogging_token, 32);
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td->test_anti_clogging = true;
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td->commit_success = false;
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sae_rx_packet(sm, aa, frame, 38);
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assert(td->commit_success == true);
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test_destruct(td);
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sae_sm_free(sm);
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}
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static void test_early_confirm(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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uint8_t frame[38];
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uint8_t first_commit[102];
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/* save the initial commit */
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memcpy(first_commit, td->tx_packet, td->tx_packet_len);
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l_put_u16(2, frame);
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l_put_u16(0, frame + 2);
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memset(frame + 4, 0xfe, 32);
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td->test_anti_clogging = false;
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sae_rx_packet(sm, aa, frame, 36);
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/* verify earlier commit matched most recent */
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assert(!memcmp(td->tx_packet, first_commit, td->tx_packet_len));
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test_destruct(td);
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sae_sm_free(sm);
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}
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static void test_reflection(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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td->tx_called = false;
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/* send reflect same commit */
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sae_rx_packet(sm, aa, td->tx_packet, td->tx_packet_len);
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assert(td->tx_called == false);
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test_destruct(td);
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sae_sm_free(sm);
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}
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static void test_malformed_commit(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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/* dont send entire commit */
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sae_rx_packet(sm, aa, aa_commit, sizeof(aa_commit) - 20);
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assert(td->status != 0);
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test_destruct(td);
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}
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static void test_malformed_confirm(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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sae_rx_packet(sm, aa, aa_commit, sizeof(aa_commit));
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assert(td->commit_success);
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/* dont send entire confirm */
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sae_rx_packet(sm, aa, aa_confirm, sizeof(aa_confirm) - 10);
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assert(td->status != 0);
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test_destruct(td);
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}
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static uint8_t aa_commit_bad_group[] = {
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0x01, 0x00, 0x00, 0x00, 0x14, 0x00, 0x50, 0x5b, 0xb2, 0x1f, 0xaf, 0x7d,
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0xaf, 0x14, 0x7c, 0x7b, 0x19, 0xc9, 0x72, 0x82, 0xbc, 0x1a, 0xdb, 0xa1,
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0xbd, 0x6e, 0x5a, 0xc7, 0x58, 0x0a, 0x65, 0x1f, 0xd2, 0xde, 0xb0, 0x66,
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0xa5, 0xf9, 0x3e, 0x95, 0x4a, 0xe1, 0x83, 0xdb, 0x8a, 0xf5, 0x47, 0x8a,
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0x9d, 0x88, 0x5b, 0x58, 0xb9, 0x5b, 0xfb, 0x99, 0xff, 0xbe, 0xa0, 0xe8,
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0x70, 0x9d, 0x99, 0x2e, 0x8f, 0xa3, 0x53, 0x57, 0x3c, 0x49, 0x81, 0x0e,
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0xbc, 0x8f, 0xbc, 0xe7, 0x77, 0x8a, 0x5b, 0xf0, 0xae, 0x4a, 0xfb, 0xcd,
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0x81, 0xc0, 0x97, 0xb2, 0xf8, 0xb9, 0x12, 0xed, 0x3b, 0xd5, 0x3c, 0x5c,
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0xb2, 0x3a, 0xcc, 0x22, 0xe3, 0x9e
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};
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static void test_bad_group(const void *arg)
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{
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struct test_data *td = l_new(struct test_data, 1);
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struct sae_sm *sm = test_initialize(td);
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sae_rx_packet(sm, aa, aa_commit_bad_group, sizeof(aa_commit_bad_group));
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assert(td->tx_reject_occurred);
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assert(td->status == MMPDU_REASON_CODE_UNSUPP_FINITE_CYCLIC_GROUP);
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test_destruct(td);
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}
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static int end_to_end_tx_func(const uint8_t *dest, const uint8_t *frame,
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size_t len, void *user_data)
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{
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struct test_data *td = user_data;
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memcpy(td->tx_packet, frame, len);
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td->tx_packet_len = len;
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return 0;
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}
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static void test_bad_confirm(const void *arg)
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{
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struct sae_sm *sm1;
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struct sae_sm *sm2;
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struct test_data *td1 = l_new(struct test_data, 1);
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struct test_data *td2 = l_new(struct test_data, 1);
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struct handshake_state *hs1 = test_handshake_state_new(1);
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struct handshake_state *hs2 = test_handshake_state_new(2);
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uint8_t tmp_commit[512];
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size_t tmp_commit_len;
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td1->status = 0xffff;
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td2->status = 0xffff;
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handshake_state_set_supplicant_address(hs1, spa);
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handshake_state_set_authenticator_address(hs1, aa);
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handshake_state_set_passphrase(hs1, passphrase);
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handshake_state_set_supplicant_address(hs2, aa);
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handshake_state_set_authenticator_address(hs2, spa);
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handshake_state_set_passphrase(hs2, passphrase);
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handshake_state_set_authenticator(hs2, true);
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sm1 = sae_sm_new(hs1, end_to_end_tx_func, test_complete_func, td1);
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sm2 = sae_sm_new(hs2, end_to_end_tx_func, test_complete_func, td2);
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/* both peers send out commit */
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sae_start(sm1);
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sae_start(sm2);
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/* save sm1 commit, tx_packet will get overwritten with confirm */
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memcpy(tmp_commit, td1->tx_packet, td1->tx_packet_len);
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tmp_commit_len = td1->tx_packet_len;
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/* rx commit for both peers */
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sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
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sae_rx_packet(sm2, spa, tmp_commit, tmp_commit_len);
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/* both peers should now have sent confirm */
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/* rx confirm for both peers */
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sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
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/* muck with a byte in the confirm */
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td1->tx_packet[10] = ~td1->tx_packet[10];
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sae_rx_packet(sm2, spa, td1->tx_packet, td1->tx_packet_len);
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assert(td1->status == 0);
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assert(td2->status != 0);
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handshake_state_free(hs1);
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handshake_state_free(hs2);
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sae_sm_free(sm1);
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/* sm2 gets freed by sae since it failed */
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l_free(td1);
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l_free(td2);
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}
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static void test_confirm_after_accept(const void *arg)
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{
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struct sae_sm *sm1;
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struct sae_sm *sm2;
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struct test_data *td1 = l_new(struct test_data, 1);
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struct test_data *td2 = l_new(struct test_data, 1);
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struct handshake_state *hs1 = test_handshake_state_new(1);
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struct handshake_state *hs2 = test_handshake_state_new(2);
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uint8_t tmp_commit[512];
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size_t tmp_commit_len;
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td1->status = 0xffff;
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td2->status = 0xffff;
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handshake_state_set_supplicant_address(hs1, spa);
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handshake_state_set_authenticator_address(hs1, aa);
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handshake_state_set_passphrase(hs1, passphrase);
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handshake_state_set_supplicant_address(hs2, aa);
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handshake_state_set_authenticator_address(hs2, spa);
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handshake_state_set_passphrase(hs2, passphrase);
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handshake_state_set_authenticator(hs2, true);
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sm1 = sae_sm_new(hs1, end_to_end_tx_func, test_complete_func, td1);
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sm2 = sae_sm_new(hs2, end_to_end_tx_func, test_complete_func, td2);
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/* both peers send out commit */
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sae_start(sm1);
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sae_start(sm2);
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/* save sm1 commit, tx_packet will get overwritten with confirm */
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memcpy(tmp_commit, td1->tx_packet, td1->tx_packet_len);
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tmp_commit_len = td1->tx_packet_len;
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/* rx commit for both peers */
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sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
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sae_rx_packet(sm2, spa, tmp_commit, tmp_commit_len);
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/* both peers should now have sent confirm */
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/* rx confirm for one peer, sm1 should accept confirm */
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|
sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
|
|
assert(td1->status == 0);
|
|
|
|
/* simulate sm2 not receiving confirm and resending its confirm */
|
|
sae_timeout(sm2);
|
|
sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
|
|
|
|
/* sc should be set to 0xffff */
|
|
assert(l_get_u16(td1->tx_packet + 4) == 0xffff);
|
|
/* sm1 should respond with a new confirm, and accept */
|
|
sae_rx_packet(sm2, spa, td1->tx_packet, td1->tx_packet_len);
|
|
|
|
assert(td1->status == 0);
|
|
assert(td2->status == 0);
|
|
|
|
handshake_state_free(hs1);
|
|
handshake_state_free(hs2);
|
|
sae_sm_free(sm1);
|
|
sae_sm_free(sm2);
|
|
l_free(td1);
|
|
l_free(td2);
|
|
}
|
|
|
|
static void test_end_to_end(const void *arg)
|
|
{
|
|
struct sae_sm *sm1;
|
|
struct sae_sm *sm2;
|
|
struct test_data *td1 = l_new(struct test_data, 1);
|
|
struct test_data *td2 = l_new(struct test_data, 1);
|
|
struct handshake_state *hs1 = test_handshake_state_new(1);
|
|
struct handshake_state *hs2 = test_handshake_state_new(2);
|
|
uint8_t tmp_commit[512];
|
|
size_t tmp_commit_len;
|
|
|
|
td1->status = 0xffff;
|
|
td2->status = 0xffff;
|
|
|
|
handshake_state_set_supplicant_address(hs1, spa);
|
|
handshake_state_set_authenticator_address(hs1, aa);
|
|
handshake_state_set_passphrase(hs1, passphrase);
|
|
|
|
handshake_state_set_supplicant_address(hs2, aa);
|
|
handshake_state_set_authenticator_address(hs2, spa);
|
|
handshake_state_set_passphrase(hs2, passphrase);
|
|
handshake_state_set_authenticator(hs2, true);
|
|
|
|
sm1 = sae_sm_new(hs1, end_to_end_tx_func, test_complete_func, td1);
|
|
sm2 = sae_sm_new(hs2, end_to_end_tx_func, test_complete_func, td2);
|
|
|
|
/* both peers send out commit */
|
|
sae_start(sm1);
|
|
sae_start(sm2);
|
|
|
|
/* save sm1 commit, tx_packet will get overwritten with confirm */
|
|
memcpy(tmp_commit, td1->tx_packet, td1->tx_packet_len);
|
|
tmp_commit_len = td1->tx_packet_len;
|
|
|
|
/* rx commit for both peers */
|
|
sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
|
|
sae_rx_packet(sm2, spa, tmp_commit, tmp_commit_len);
|
|
/* both peers should now have sent confirm */
|
|
|
|
/* rx confirm for both peers */
|
|
sae_rx_packet(sm1, aa, td2->tx_packet, td2->tx_packet_len);
|
|
sae_rx_packet(sm2, spa, td1->tx_packet, td1->tx_packet_len);
|
|
|
|
assert(td1->status == 0);
|
|
assert(td2->status == 0);
|
|
|
|
handshake_state_free(hs1);
|
|
handshake_state_free(hs2);
|
|
sae_sm_free(sm1);
|
|
sae_sm_free(sm2);
|
|
l_free(td1);
|
|
l_free(td2);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
l_test_init(&argc, &argv);
|
|
|
|
l_test_add("SAE commit timeout", test_commit_timeout, NULL);
|
|
l_test_add("SAE confirm timeout", test_confirm_timeout, NULL);
|
|
l_test_add("SAE anti-clogging", test_clogging, NULL);
|
|
l_test_add("SAE early confirm", test_early_confirm, NULL);
|
|
l_test_add("SAE reflection", test_reflection, NULL);
|
|
l_test_add("SAE malformed commit", test_malformed_commit, NULL);
|
|
l_test_add("SAE malformed confirm", test_malformed_confirm, NULL);
|
|
l_test_add("SAE bad group", test_bad_group, NULL);
|
|
l_test_add("SAE bad confirm", test_bad_confirm, NULL);
|
|
l_test_add("SAE confirm after accept", test_confirm_after_accept, NULL);
|
|
l_test_add("SAE end-to-end", test_end_to_end, NULL);
|
|
|
|
return l_test_run();
|
|
}
|