unit: WPA+TKIP handshake logic tests.

This commit is contained in:
Andrew Zaborowski 2015-05-18 13:31:43 +02:00 committed by Denis Kenzior
parent 6bb31ac5b4
commit 6c9bf06f73
1 changed files with 242 additions and 0 deletions

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@ -1218,6 +1218,123 @@ static void eapol_wpa2_handshake_test(const void *data)
l_free(ptk);
}
static void eapol_wpa_handshake_test(const void *data)
{
uint8_t anonce[32];
uint8_t snonce[32];
uint8_t mic[16];
struct eapol_key *frame;
uint8_t aa[] = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t spa[] = { 0x02, 0x00, 0x00, 0x00, 0x01, 0x00 };
const char *passphrase = "EasilyGuessedPassword";
const char *ssid = "TestWPA";
const unsigned char expected_psk[] = {
0xbf, 0x9a, 0xa3, 0x15, 0x53, 0x00, 0x12, 0x5e,
0x7a, 0x5e, 0xbb, 0x2a, 0x54, 0x9f, 0x8c, 0xd4,
0xed, 0xab, 0x8e, 0xe1, 0x2e, 0x94, 0xbf, 0xc2,
0x4b, 0x33, 0x57, 0xad, 0x04, 0x96, 0x65, 0xd9 };
unsigned char psk[32];
struct crypto_ptk *ptk;
size_t ptk_len;
bool ret;
const struct eapol_key *ptk_step1;
const struct eapol_key *ptk_step2;
const struct eapol_key *ptk_step3;
const struct eapol_key *ptk_step4;
const struct eapol_key *gtk_step1;
const struct eapol_key *gtk_step2;
uint8_t *decrypted_key_data;
size_t decrypted_key_data_len;
ptk_step1 = eapol_key_validate(eapol_key_data_13,
sizeof(eapol_key_data_13));
assert(ptk_step1);
assert(eapol_verify_ptk_1_of_4(ptk_step1));
memcpy(anonce, ptk_step1->key_nonce, sizeof(ptk_step1->key_nonce));
ptk_step2 = eapol_key_validate(eapol_key_data_14,
sizeof(eapol_key_data_14));
assert(ptk_step2);
assert(eapol_verify_ptk_2_of_4(ptk_step2));
memcpy(snonce, ptk_step2->key_nonce, sizeof(ptk_step2->key_nonce));
assert(!crypto_psk_from_passphrase(passphrase, (uint8_t *) ssid,
strlen(ssid), psk));
assert(!memcmp(expected_psk, psk, sizeof(psk)));
ptk_len = sizeof(struct crypto_ptk) +
crypto_cipher_key_len(CRYPTO_CIPHER_TKIP);
ptk = l_malloc(ptk_len);
ret = crypto_derive_pairwise_ptk(psk, aa, spa, anonce, snonce,
ptk, ptk_len);
assert(ret);
frame = eapol_create_ptk_2_of_4(EAPOL_PROTOCOL_VERSION_2004,
EAPOL_KEY_DESCRIPTOR_VERSION_HMAC_MD5_ARC4,
eapol_key_test_14.key_replay_counter,
snonce, eapol_key_test_14.key_data_len,
eapol_key_data_14 + sizeof(struct eapol_key),
true);
assert(frame);
assert(eapol_calculate_mic(ptk->kck, frame, mic));
memcpy(frame->key_mic_data, mic, sizeof(mic));
assert(!memcmp(frame, eapol_key_data_14, sizeof(eapol_key_data_14)));
l_free(frame);
ptk_step3 = eapol_key_validate(eapol_key_data_15,
sizeof(eapol_key_data_15));
assert(ptk_step3);
assert(eapol_verify_ptk_3_of_4(ptk_step3, true));
assert(!memcmp(anonce, ptk_step3->key_nonce,
sizeof(ptk_step3->key_nonce)));
assert(eapol_verify_mic(ptk->kck, ptk_step3));
assert(ptk_step3->key_data[0] == IE_TYPE_VENDOR_SPECIFIC);
assert(is_ie_wpa_ie(ptk_step3->key_data + 2,
ptk_step3->key_data_len - 2));
ptk_step4 = eapol_key_validate(eapol_key_data_16,
sizeof(eapol_key_data_16));
assert(ptk_step4);
assert(eapol_verify_ptk_4_of_4(ptk_step4, true));
frame = eapol_create_ptk_4_of_4(EAPOL_PROTOCOL_VERSION_2004,
EAPOL_KEY_DESCRIPTOR_VERSION_HMAC_MD5_ARC4,
eapol_key_test_16.key_replay_counter, true);
assert(frame);
assert(eapol_calculate_mic(ptk->kck, frame, mic));
memcpy(frame->key_mic_data, mic, sizeof(mic));
assert(!memcmp(frame, eapol_key_data_16, sizeof(eapol_key_data_16)));
l_free(frame);
gtk_step1 = eapol_key_validate(eapol_key_data_17,
sizeof(eapol_key_data_17));
assert(gtk_step1);
assert(eapol_verify_gtk_1_of_2(gtk_step1, true));
decrypted_key_data = eapol_decrypt_key_data(ptk->kek, gtk_step1,
&decrypted_key_data_len);
assert(decrypted_key_data_len == 32);
l_free(decrypted_key_data);
gtk_step2 = eapol_key_validate(eapol_key_data_18,
sizeof(eapol_key_data_18));
assert(gtk_step2);
assert(eapol_verify_gtk_2_of_2(gtk_step2, true));
frame = eapol_create_gtk_2_of_2(EAPOL_PROTOCOL_VERSION_2004,
EAPOL_KEY_DESCRIPTOR_VERSION_HMAC_MD5_ARC4,
eapol_key_test_18.key_replay_counter, true);
assert(frame);
assert(eapol_calculate_mic(ptk->kck, frame, mic));
memcpy(frame->key_mic_data, mic, sizeof(mic));
assert(!memcmp(frame, eapol_key_data_18, sizeof(eapol_key_data_18)));
l_free(frame);
l_free(ptk);
}
static bool verify_step2_called;
static bool verify_step4_called;
static bool verify_gtk_step2_called;
@ -1441,6 +1558,125 @@ static void eapol_sm_test_wpa2_ptk_gtk(const void *data)
eapol_exit();
}
static int verify_wpa_step2_ptk(uint32_t ifindex, const uint8_t *aa_addr,
const uint8_t *sta_addr,
const struct eapol_key *ek,
void *user_data)
{
size_t ek_len = sizeof(struct eapol_key) +
L_BE16_TO_CPU(ek->key_data_len);
assert(ifindex == 1);
assert(!memcmp(sta_addr, spa_ptk_gtk, sizeof(spa_ptk_gtk)));
assert(!memcmp(aa_addr, aa_ptk_gtk, sizeof(aa_ptk_gtk)));
assert(ek_len == sizeof(eapol_key_data_14));
assert(!memcmp(ek, eapol_key_data_14, sizeof(eapol_key_data_14)));
verify_step2_called = true;
return 0;
}
static int verify_wpa_step4_ptk(uint32_t ifindex, const uint8_t *aa_addr,
const uint8_t *sta_addr,
const struct eapol_key *ek,
void *user_data)
{
size_t ek_len = sizeof(struct eapol_key) +
L_BE16_TO_CPU(ek->key_data_len);
assert(ifindex == 1);
assert(!memcmp(sta_addr, spa_ptk_gtk, sizeof(spa_ptk_gtk)));
assert(!memcmp(aa_addr, aa_ptk_gtk, sizeof(aa_ptk_gtk)));
assert(ek_len == sizeof(eapol_key_data_16));
assert(!memcmp(ek, eapol_key_data_16, sizeof(eapol_key_data_16)));
verify_step4_called = true;
return 0;
}
static int verify_wpa_step2_gtk(uint32_t ifindex, const uint8_t *aa_addr,
const uint8_t *sta_addr,
const struct eapol_key *ek,
void *user_data)
{
size_t ek_len = sizeof(struct eapol_key) +
L_BE16_TO_CPU(ek->key_data_len);
assert(ifindex == 1);
assert(!memcmp(sta_addr, spa_ptk_gtk, sizeof(spa_ptk_gtk)));
assert(!memcmp(aa_addr, aa_ptk_gtk, sizeof(aa_ptk_gtk)));
assert(ek_len == sizeof(eapol_key_data_18));
assert(!memcmp(ek, eapol_key_data_18, sizeof(eapol_key_data_18)));
verify_gtk_step2_called = true;
return 0;
}
static bool test_wpa_nonce_ptk(uint8_t nonce[])
{
static const uint8_t snonce[] = {
0x3b, 0x7f, 0x85, 0x0a, 0x03, 0x9c, 0xa4, 0x71,
0x42, 0x9d, 0x0f, 0xc3, 0xce, 0x9f, 0xff, 0x48,
0xdb, 0x89, 0x2e, 0xf7, 0xa7, 0xff, 0x80, 0xf6,
0x22, 0xc4, 0x6e, 0x32, 0x97, 0x05, 0xc3, 0x7d
};
memcpy(nonce, snonce, sizeof(snonce));
return true;
}
static void eapol_sm_test_wpa_ptk_gtk(const void *data)
{
const unsigned char psk[] = {
0xbf, 0x9a, 0xa3, 0x15, 0x53, 0x00, 0x12, 0x5e,
0x7a, 0x5e, 0xbb, 0x2a, 0x54, 0x9f, 0x8c, 0xd4,
0xed, 0xab, 0x8e, 0xe1, 0x2e, 0x94, 0xbf, 0xc2,
0x4b, 0x33, 0x57, 0xad, 0x04, 0x96, 0x65, 0xd9 };
const unsigned char ap_wpa_ie[] = {
0xdd, 0x16, 0x00, 0x50, 0xf2, 0x01, 0x01, 0x00,
0x00, 0x50, 0xf2, 0x02, 0x01, 0x00, 0x00, 0x50,
0xf2, 0x02, 0x01, 0x00, 0x00, 0x50, 0xf2, 0x02 };
struct eapol_sm *sm;
eapol_init();
__eapol_set_protocol_version(EAPOL_PROTOCOL_VERSION_2004);
__eapol_set_get_nonce_func(test_wpa_nonce_ptk);
verify_step2_called = false;
verify_step4_called = false;
verify_gtk_step2_called = false;
sm = eapol_sm_new();
eapol_sm_set_pmk(sm, psk);
eapol_sm_set_authenticator_address(sm, aa_ptk_gtk);
eapol_sm_set_supplicant_address(sm, spa_ptk_gtk);
eapol_sm_set_own_wpa(sm, eapol_key_data_14 + sizeof(struct eapol_key),
eapol_key_test_14.key_data_len);
eapol_sm_set_ap_wpa(sm, ap_wpa_ie, sizeof(ap_wpa_ie));
eapol_start(1, sm);
__eapol_set_tx_packet_func(verify_wpa_step2_ptk);
__eapol_rx_packet(1, spa_ptk_gtk, aa_ptk_gtk, eapol_key_data_13,
sizeof(eapol_key_data_13), NULL);
assert(verify_step2_called);
__eapol_set_tx_packet_func(verify_wpa_step4_ptk);
__eapol_rx_packet(1, spa_ptk_gtk, aa_ptk_gtk, eapol_key_data_15,
sizeof(eapol_key_data_15), NULL);
assert(verify_step4_called);
__eapol_set_tx_packet_func(verify_wpa_step2_gtk);
__eapol_rx_packet(1, spa_ptk_gtk, aa_ptk_gtk, eapol_key_data_17,
sizeof(eapol_key_data_17), NULL);
assert(verify_gtk_step2_called);
eapol_exit();
}
int main(int argc, char *argv[])
{
l_test_init(&argc, &argv);
@ -1496,10 +1732,16 @@ int main(int argc, char *argv[])
l_test_add("EAPoL/WPA2 4-Way & GTK Handshake",
&eapol_wpa2_handshake_test, NULL);
l_test_add("EAPoL/WPA 4-Way & GTK Handshake",
&eapol_wpa_handshake_test, NULL);
l_test_add("EAPoL/WPA2 PTK State Machine", &eapol_sm_test_ptk, NULL);
l_test_add("EAPoL/WPA2 PTK & GTK State Machine",
&eapol_sm_test_wpa2_ptk_gtk, NULL);
l_test_add("EAPoL/WPA PTK & GTK State Machine",
&eapol_sm_test_wpa_ptk_gtk, NULL);
return l_test_run();
}