eapol_test: Check EAP-Key-Name
The new command line argument -e can be used to request the server to send EAP-Key-Name in Access-Accept. If both the local EAP peer implementation and server provide the EAP Session-Id, compare those values and indicate in debug log whether a match was seen. Signed-off-by: Jouni Malinen <j@w1.fi>
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1 changed files with 50 additions and 2 deletions
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@ -46,6 +46,7 @@ struct eapol_test_data {
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int eapol_test_num_reauths;
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int no_mppe_keys;
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int num_mppe_ok, num_mppe_mismatch;
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int req_eap_key_name;
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u8 radius_identifier;
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struct radius_msg *last_recv_radius;
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@ -58,6 +59,8 @@ struct eapol_test_data {
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u8 authenticator_pmk[PMK_LEN];
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size_t authenticator_pmk_len;
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u8 authenticator_eap_key_name[256];
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size_t authenticator_eap_key_name_len;
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int radius_access_accept_received;
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int radius_access_reject_received;
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int auth_timed_out;
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@ -208,6 +211,13 @@ static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
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goto fail;
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}
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if (e->req_eap_key_name &&
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!radius_msg_add_attr(msg, RADIUS_ATTR_EAP_KEY_NAME, (u8 *) "\0",
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1)) {
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printf("Could not add EAP-Key-Name\n");
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goto fail;
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}
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if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_IP_ADDRESS) &&
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!radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
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(u8 *) &e->own_ip_addr, 4)) {
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@ -333,6 +343,8 @@ static int eapol_test_compare_pmk(struct eapol_test_data *e)
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{
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u8 pmk[PMK_LEN];
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int ret = 1;
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const u8 *sess_id;
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size_t sess_id_len;
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if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
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wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
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@ -361,6 +373,28 @@ static int eapol_test_compare_pmk(struct eapol_test_data *e)
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else if (!e->no_mppe_keys)
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e->num_mppe_ok++;
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sess_id = eapol_sm_get_session_id(e->wpa_s->eapol, &sess_id_len);
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if (!sess_id)
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return ret;
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if (e->authenticator_eap_key_name_len == 0) {
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wpa_printf(MSG_INFO, "No EAP-Key-Name received from server");
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return ret;
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}
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if (e->authenticator_eap_key_name_len != sess_id_len ||
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os_memcmp(e->authenticator_eap_key_name, sess_id, sess_id_len) != 0)
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{
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wpa_printf(MSG_INFO,
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"Locally derived EAP Session-Id does not match EAP-Key-Name from server");
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wpa_hexdump(MSG_DEBUG, "EAP Session-Id", sess_id, sess_id_len);
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wpa_hexdump(MSG_DEBUG, "EAP-Key-Name from server",
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e->authenticator_eap_key_name,
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e->authenticator_eap_key_name_len);
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} else {
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wpa_printf(MSG_INFO,
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"Locally derived EAP Session-Id matches EAP-Key-Name from server");
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}
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return ret;
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}
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@ -749,6 +783,8 @@ static void ieee802_1x_get_keys(struct eapol_test_data *e,
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size_t shared_secret_len)
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{
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struct radius_ms_mppe_keys *keys;
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u8 *buf;
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size_t len;
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keys = radius_msg_get_ms_keys(msg, req, shared_secret,
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shared_secret_len);
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@ -787,6 +823,14 @@ static void ieee802_1x_get_keys(struct eapol_test_data *e,
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os_free(keys->recv);
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os_free(keys);
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}
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if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_EAP_KEY_NAME, &buf, &len,
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NULL) == 0) {
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os_memcpy(e->authenticator_eap_key_name, buf, len);
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e->authenticator_eap_key_name_len = len;
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} else {
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e->authenticator_eap_key_name_len = 0;
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}
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}
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@ -1095,7 +1139,7 @@ static void eapol_test_terminate(int sig, void *signal_ctx)
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static void usage(void)
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{
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printf("usage:\n"
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"eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
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"eapol_test [-enWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
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"[-s<AS secret>]\\\n"
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" [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
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" [-M<client MAC address>] [-o<server cert file] \\\n"
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@ -1115,6 +1159,7 @@ static void usage(void)
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" -A<client IP> = IP address of the client, default: select "
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"automatically\n"
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" -r<count> = number of re-authentications\n"
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" -e = Request EAP-Key-Name\n"
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" -W = wait for a control interface monitor before starting\n"
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" -S = save configuration after authentication\n"
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" -n = no MPPE keys expected\n"
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@ -1168,7 +1213,7 @@ int main(int argc, char *argv[])
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wpa_debug_show_keys = 1;
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for (;;) {
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c = getopt(argc, argv, "a:A:c:C:M:nN:o:p:r:s:St:W");
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c = getopt(argc, argv, "a:A:c:C:eM:nN:o:p:r:s:St:W");
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if (c < 0)
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break;
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switch (c) {
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@ -1184,6 +1229,9 @@ int main(int argc, char *argv[])
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case 'C':
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eapol_test.connect_info = optarg;
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break;
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case 'e':
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eapol_test.req_eap_key_name = 1;
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break;
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case 'M':
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if (hwaddr_aton(optarg, eapol_test.own_addr)) {
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usage();
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