/*
* EAP peer method: EAP-TTLS (RFC 5281)
- * Copyright (c) 2004-2011, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
void *phase2_priv;
int phase2_success;
int phase2_start;
+ EapDecision decision_succ;
enum phase2_types {
EAP_TTLS_PHASE2_EAP,
size_t id_len;
struct wpabuf *pending_phase2_req;
+ struct wpabuf *pending_resp;
int chbind_req_sent; /* channel binding request was sent */
int done_butfor_cb; /*we turned METHOD_DONE into METHOD_MAY_CONT to receive cb*/
- EapDecision cbDecision;
+ EapDecision cbDecision;
#ifdef EAP_TNC
int ready_for_tnc;
int tnc_started;
{
struct eap_ttls_data *data;
struct eap_peer_config *config = eap_get_config(sm);
+ int selected_non_eap;
char *selected;
data = os_zalloc(sizeof(*data));
return NULL;
data->ttls_version = EAP_TTLS_VERSION;
selected = "EAP";
+ selected_non_eap = 0;
data->phase2_type = EAP_TTLS_PHASE2_EAP;
+ /*
+ * Either one auth= type or one or more autheap= methods can be
+ * specified.
+ */
if (config && config->phase2) {
+ const char *token, *last = NULL;
+
+ while ((token = cstr_token(config->phase2, " \t", &last))) {
+ if (os_strncmp(token, "auth=", 5) != 0)
+ continue;
+ token += 5;
+
+ if (last - token == 8 &&
+ os_strncmp(token, "MSCHAPV2", 8) == 0) {
+ selected = "MSCHAPV2";
+ data->phase2_type = EAP_TTLS_PHASE2_MSCHAPV2;
+ } else if (last - token == 6 &&
+ os_strncmp(token, "MSCHAP", 6) == 0) {
+ selected = "MSCHAP";
+ data->phase2_type = EAP_TTLS_PHASE2_MSCHAP;
+ } else if (last - token == 3 &&
+ os_strncmp(token, "PAP", 3) == 0) {
+ selected = "PAP";
+ data->phase2_type = EAP_TTLS_PHASE2_PAP;
+ } else if (last - token == 4 &&
+ os_strncmp(token, "CHAP", 4) == 0) {
+ selected = "CHAP";
+ data->phase2_type = EAP_TTLS_PHASE2_CHAP;
+ } else {
+ wpa_printf(MSG_ERROR,
+ "EAP-TTLS: Unsupported Phase2 type '%s'",
+ token);
+ eap_ttls_deinit(sm, data);
+ return NULL;
+ }
+
+ if (selected_non_eap) {
+ wpa_printf(MSG_ERROR,
+ "EAP-TTLS: Only one Phase2 type can be specified");
+ eap_ttls_deinit(sm, data);
+ return NULL;
+ }
+
+ selected_non_eap = 1;
+ }
+
if (os_strstr(config->phase2, "autheap=")) {
+ if (selected_non_eap) {
+ wpa_printf(MSG_ERROR,
+ "EAP-TTLS: Both auth= and autheap= params cannot be specified");
+ eap_ttls_deinit(sm, data);
+ return NULL;
+ }
selected = "EAP";
data->phase2_type = EAP_TTLS_PHASE2_EAP;
- } else if (os_strstr(config->phase2, "auth=MSCHAPV2")) {
- selected = "MSCHAPV2";
- data->phase2_type = EAP_TTLS_PHASE2_MSCHAPV2;
- } else if (os_strstr(config->phase2, "auth=MSCHAP")) {
- selected = "MSCHAP";
- data->phase2_type = EAP_TTLS_PHASE2_MSCHAP;
- } else if (os_strstr(config->phase2, "auth=PAP")) {
- selected = "PAP";
- data->phase2_type = EAP_TTLS_PHASE2_PAP;
- } else if (os_strstr(config->phase2, "auth=CHAP")) {
- selected = "CHAP";
- data->phase2_type = EAP_TTLS_PHASE2_CHAP;
}
}
+
wpa_printf(MSG_DEBUG, "EAP-TTLS: Phase2 type: %s", selected);
if (data->phase2_type == EAP_TTLS_PHASE2_EAP) {
eap_ttls_free_key(data);
os_free(data->session_id);
wpabuf_free(data->pending_phase2_req);
+ wpabuf_free(data->pending_resp);
os_free(data);
}
{
int res;
+ if (sm->waiting_ext_cert_check && data->pending_resp) {
+ struct eap_peer_config *config = eap_get_config(sm);
+
+ if (config->pending_ext_cert_check == EXT_CERT_CHECK_GOOD) {
+ wpa_printf(MSG_DEBUG,
+ "EAP-TTLS: External certificate check succeeded - continue handshake");
+ *out_data = data->pending_resp;
+ data->pending_resp = NULL;
+ sm->waiting_ext_cert_check = 0;
+ return 0;
+ }
+
+ if (config->pending_ext_cert_check == EXT_CERT_CHECK_BAD) {
+ wpa_printf(MSG_DEBUG,
+ "EAP-TTLS: External certificate check failed - force authentication failure");
+ ret->methodState = METHOD_DONE;
+ ret->decision = DECISION_FAIL;
+ sm->waiting_ext_cert_check = 0;
+ return 0;
+ }
+
+ wpa_printf(MSG_DEBUG,
+ "EAP-TTLS: Continuing to wait external server certificate validation");
+ return 0;
+ }
+
res = eap_peer_tls_process_helper(sm, &data->ssl, EAP_TYPE_TTLS,
data->ttls_version, identifier,
in_data, out_data);
return -1;
}
+ if (sm->waiting_ext_cert_check) {
+ wpa_printf(MSG_DEBUG,
+ "EAP-TTLS: Waiting external server certificate validation");
+ wpabuf_free(data->pending_resp);
+ data->pending_resp = *out_data;
+ *out_data = NULL;
+ return 0;
+ }
+
if (tls_connection_established(sm->ssl_ctx, data->ssl.conn)) {
wpa_printf(MSG_DEBUG, "EAP-TTLS: TLS done, proceed to "
"Phase 2");
wpa_printf(MSG_DEBUG, "EAP-TTLS: Authentication "
"completed successfully");
data->phase2_success = 1;
+ data->decision_succ = ret->decision;
#ifdef EAP_TNC
if (!data->ready_for_tnc && !data->tnc_started) {
/*
wpa_printf(MSG_DEBUG, "EAP-TTLS: Authentication "
"completed successfully (MAY_CONT)");
data->phase2_success = 1;
+ data->decision_succ = ret->decision;
+ } else if (data->decision_succ != DECISION_FAIL &&
+ data->phase2_success &&
+ !data->ssl.tls_out) {
+ /*
+ * This is needed to cover the case where the final Phase 2
+ * message gets fragmented since fragmentation clears
+ * decision back to FAIL.
+ */
+ wpa_printf(MSG_DEBUG,
+ "EAP-TTLS: Restore success decision after fragmented frame sent completely");
+ ret->decision = data->decision_succ;
}
}
struct eap_ttls_data *data = priv;
wpabuf_free(data->pending_phase2_req);
data->pending_phase2_req = NULL;
+ wpabuf_free(data->pending_resp);
+ data->pending_resp = NULL;
+ data->decision_succ = DECISION_FAIL;
#ifdef EAP_TNC
data->ready_for_tnc = 0;
data->tnc_started = 0;
int eap_peer_ttls_register(void)
{
struct eap_method *eap;
- int ret;
eap = eap_peer_method_alloc(EAP_PEER_METHOD_INTERFACE_VERSION,
EAP_VENDOR_IETF, EAP_TYPE_TTLS, "TTLS");
eap->init_for_reauth = eap_ttls_init_for_reauth;
eap->get_emsk = eap_ttls_get_emsk;
- ret = eap_peer_method_register(eap);
- if (ret)
- eap_peer_method_free(eap);
- return ret;
+ return eap_peer_method_register(eap);
}
projects / mech_eap.git / blobdiff