2
* EAP peer method: EAP-OTP (RFC 3748)
3
* Copyright (c) 2004-2006, Jouni Malinen <jkmaline@cc.hut.fi>
5
* This program is free software; you can redistribute it and/or modify
6
* it under the terms of the GNU General Public License version 2 as
7
* published by the Free Software Foundation.
9
* Alternatively, this software may be distributed under the terms of BSD
12
* See README and COPYING for more details.
21
static void * eap_otp_init(struct eap_sm *sm)
23
/* No need for private data. However, must return non-NULL to indicate
29
static void eap_otp_deinit(struct eap_sm *sm, void *priv)
34
static u8 * eap_otp_process(struct eap_sm *sm, void *priv,
35
struct eap_method_ret *ret,
36
const u8 *reqData, size_t reqDataLen,
39
const struct eap_hdr *req;
41
const u8 *pos, *password;
43
size_t password_len, len;
46
pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_OTP,
47
reqData, reqDataLen, &len);
52
req = (const struct eap_hdr *) reqData;
53
wpa_hexdump_ascii(MSG_MSGDUMP, "EAP-OTP: Request message",
56
password = eap_get_config_otp(sm, &password_len);
60
password = eap_get_config_password(sm, &password_len);
64
if (password == NULL) {
65
wpa_printf(MSG_INFO, "EAP-OTP: Password not configured");
66
eap_sm_request_otp(sm, (const char *) pos, len);
73
ret->methodState = METHOD_DONE;
74
ret->decision = DECISION_COND_SUCC;
75
ret->allowNotifications = FALSE;
77
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_OTP, respDataLen,
78
password_len, EAP_CODE_RESPONSE, req->identifier,
82
os_memcpy(rpos, password, password_len);
83
wpa_hexdump_ascii_key(MSG_MSGDUMP, "EAP-OTP: Response",
84
password, password_len);
87
wpa_printf(MSG_DEBUG, "EAP-OTP: Forgetting used password");
88
eap_clear_config_otp(sm);
95
int eap_peer_otp_register(void)
97
struct eap_method *eap;
100
eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION,
101
EAP_VENDOR_IETF, EAP_TYPE_OTP, "OTP");
105
eap->init = eap_otp_init;
106
eap->deinit = eap_otp_deinit;
107
eap->process = eap_otp_process;
109
ret = eap_peer_method_register(eap);
111
eap_peer_method_free(eap);