static u8 * eap_otp_process(struct eap_sm *sm, void *priv,
struct eap_method_ret *ret,
const u8 *reqData, size_t reqDataLen,
size_t *respDataLen)
{
const struct eap_hdr *req;
struct eap_hdr *resp;
const u8 *pos, *password;
u8 *rpos;
size_t password_len, len;
int otp;
pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_OTP,
reqData, reqDataLen, &len);
if (pos == NULL) {
ret->ignore = TRUE;
return NULL;
}
req = (const struct eap_hdr *) reqData;
wpa_hexdump_ascii(MSG_MSGDUMP, "EAP-OTP: Request message",
pos, len);
password = eap_get_config_otp(sm, &password_len);
if (password)
otp = 1;
else {
password = eap_get_config_password(sm, &password_len);
otp = 0;
}
if (password == NULL) {
wpa_printf(MSG_INFO, "EAP-OTP: Password not configured");
eap_sm_request_otp(sm, (const char *) pos, len);
ret->ignore = TRUE;
return NULL;
}
ret->ignore = FALSE;
ret->methodState = METHOD_DONE;
ret->decision = DECISION_COND_SUCC;
ret->allowNotifications = FALSE;
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_OTP, respDataLen,
password_len, EAP_CODE_RESPONSE, req->identifier,
&rpos);
if (resp == NULL)
return NULL;
os_memcpy(rpos, password, password_len);
wpa_hexdump_ascii_key(MSG_MSGDUMP, "EAP-OTP: Response",
password, password_len);
if (otp) {
wpa_printf(MSG_DEBUG, "EAP-OTP: Forgetting used password");
eap_clear_config_otp(sm);
}
return (u8 *) resp;
}
void eap_sm_notify_ctrl_attached(struct eap_sm *sm)
{
struct wpa_ssid *config = eap_get_config(sm);
if (config == NULL)
return;
/* Re-send any pending requests for user data since a new control
* interface was added. This handles cases where the EAP authentication
* starts immediately after system startup when the user interface is
* not yet running. */
if (config->pending_req_identity)
eap_sm_request_identity(sm, config);
if (config->pending_req_password)
eap_sm_request_password(sm, config);
if (config->pending_req_otp)
eap_sm_request_otp(sm, config, NULL, 0);
if (config->pending_req_pin)
eap_sm_request_pin(sm, config);
}
static struct wpabuf * eap_gtc_process(struct eap_sm *sm, void *priv,
struct eap_method_ret *ret,
const struct wpabuf *reqData)
{
struct eap_gtc_data *data = priv;
struct wpabuf *resp;
const u8 *pos, *password, *identity;
size_t password_len, identity_len, len, plen;
int otp;
u8 id;
pos = eap_hdr_validate(EAP_VENDOR_IETF, EAP_TYPE_GTC, reqData, &len);
if (pos == NULL) {
ret->ignore = TRUE;
return NULL;
}
id = eap_get_id(reqData);
wpa_hexdump_ascii(MSG_MSGDUMP, "EAP-GTC: Request message", pos, len);
if (data->prefix &&
(len < 10 || os_memcmp(pos, "CHALLENGE=", 10) != 0)) {
wpa_printf(MSG_DEBUG, "EAP-GTC: Challenge did not start with "
"expected prefix");
wpa_printf(MSG_DEBUG, "Unrecoverable error - Restarting\n");
/* Send an empty response in order to allow tunneled
* acknowledgement of the failure. This will also cover the
* error case which seems to use EAP-MSCHAPv2 like error
* reporting with EAP-GTC inside EAP-FAST tunnel. */
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_GTC,
0, EAP_CODE_RESPONSE, id);
return resp;
}
password = eap_get_config_otp(sm, &password_len);
if (password)
otp = 1;
else {
password = eap_get_config_password(sm, &password_len);
otp = 0;
}
if (password == NULL) {
wpa_printf(MSG_INFO, "EAP-GTC: Password not configured");
eap_sm_request_otp(sm, (const char *) pos, len);
ret->ignore = TRUE;
return NULL;
}
ret->ignore = FALSE;
ret->methodState = data->prefix ? METHOD_MAY_CONT : METHOD_DONE;
ret->decision = DECISION_COND_SUCC;
ret->allowNotifications = FALSE;
plen = password_len;
identity = eap_get_config_identity(sm, &identity_len);
if (identity == NULL)
return NULL;
if (data->prefix)
plen += 9 + identity_len + 1;
resp = eap_msg_alloc(EAP_VENDOR_IETF, EAP_TYPE_GTC, plen,
EAP_CODE_RESPONSE, id);
if (resp == NULL)
return NULL;
if (data->prefix) {
wpabuf_put_data(resp, "RESPONSE=", 9);
wpabuf_put_data(resp, identity, identity_len);
wpabuf_put_u8(resp, '\0');
}
wpabuf_put_data(resp, password, password_len);
wpa_hexdump_ascii_key(MSG_MSGDUMP, "EAP-GTC: Response",
wpabuf_head_u8(resp) + sizeof(struct eap_hdr) +
1, plen);
if (otp) {
wpa_printf(MSG_DEBUG, "EAP-GTC: Forgetting used password");
eap_clear_config_otp(sm);
}
return resp;
}
static u8 * eap_gtc_process(struct eap_sm *sm, void *priv,
struct eap_method_ret *ret,
const u8 *reqData, size_t reqDataLen,
size_t *respDataLen)
{
struct eap_gtc_data *data = priv;
struct wpa_ssid *config = eap_get_config(sm);
const struct eap_hdr *req;
struct eap_hdr *resp;
const u8 *pos, *password;
u8 *rpos;
size_t password_len, len;
pos = eap_hdr_validate(EAP_TYPE_GTC, reqData, reqDataLen, &len);
if (pos == NULL) {
ret->ignore = TRUE;
return NULL;
}
req = (const struct eap_hdr *) reqData;
wpa_hexdump_ascii(MSG_MSGDUMP, "EAP-GTC: Request message", pos, len);
if (data->prefix &&
(len < 10 || memcmp(pos, "CHALLENGE=", 10) != 0)) {
wpa_printf(MSG_DEBUG, "EAP-GTC: Challenge did not start with "
"expected prefix");
/* Send an empty response in order to allow tunneled
* acknowledgement of the failure. This will also cover the
* error case which seems to use EAP-MSCHAPv2 like error
* reporting with EAP-GTC inside EAP-FAST tunnel. */
*respDataLen = sizeof(struct eap_hdr) + 1;
resp = malloc(*respDataLen);
if (resp == NULL)
return NULL;
resp->code = EAP_CODE_RESPONSE;
resp->identifier = req->identifier;
resp->length = host_to_be16(*respDataLen);
rpos = (u8 *) (resp + 1);
*rpos++ = EAP_TYPE_GTC;
return (u8 *) resp;
}
if (config == NULL ||
(config->password == NULL && config->otp == NULL)) {
wpa_printf(MSG_INFO, "EAP-GTC: Password not configured");
eap_sm_request_otp(sm, config, (const char *) pos, len);
ret->ignore = TRUE;
return NULL;
}
if (config->otp) {
password = config->otp;
password_len = config->otp_len;
} else {
password = config->password;
password_len = config->password_len;
}
ret->ignore = FALSE;
ret->methodState = data->prefix ? METHOD_MAY_CONT : METHOD_DONE;
ret->decision = DECISION_COND_SUCC;
ret->allowNotifications = FALSE;
*respDataLen = sizeof(struct eap_hdr) + 1 + password_len;
if (data->prefix) {
*respDataLen += 9 + config->identity_len + 1;
}
resp = malloc(*respDataLen);
if (resp == NULL)
return NULL;
resp->code = EAP_CODE_RESPONSE;
resp->identifier = req->identifier;
resp->length = host_to_be16(*respDataLen);
rpos = (u8 *) (resp + 1);
*rpos++ = EAP_TYPE_GTC;
if (data->prefix) {
memcpy(rpos, "RESPONSE=", 9);
rpos += 9;
memcpy(rpos, config->identity, config->identity_len);
rpos += config->identity_len;
*rpos++ = '\0';
}
memcpy(rpos, password, password_len);
wpa_hexdump_ascii_key(MSG_MSGDUMP, "EAP-GTC: Response",
(u8 *) (resp + 1) + 1,
*respDataLen - sizeof(struct eap_hdr) - 1);
if (config->otp) {
wpa_printf(MSG_DEBUG, "EAP-GTC: Forgetting used password");
memset(config->otp, 0, config->otp_len);
free(config->otp);
config->otp = NULL;
config->otp_len = 0;
}
return (u8 *) resp;
}
