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EAP-TTLS peer: Support vendor EAP method in Phase 2

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The implementation was previously hardcoded to use only the non-expanded
IETF EAP methods in Phase 2. Extend that to allow vendor EAP methods
with expanded header to be used.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2019-08-17 12:11:50 +03:00
parent 5e94e7f23d
commit 5ddbd9e968
1 changed files with 31 additions and 14 deletions
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45
src/eap_peer/eap_ttls.c
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@ -311,11 +311,11 @@ static u8 * eap_ttls_implicit_challenge(struct eap_sm *sm,
static void eap_ttls_phase2_select_eap_method(struct eap_ttls_data *data,
u8 method)
int vendor, enum eap_type method)
{
size_t i;
for (i = 0; i < data->num_phase2_eap_types; i++) {
if (data->phase2_eap_types[i].vendor != EAP_VENDOR_IETF ||
if (data->phase2_eap_types[i].vendor != vendor ||
data->phase2_eap_types[i].method != method)
continue;
@ -362,17 +362,19 @@ static int eap_ttls_phase2_request_eap_method(struct eap_sm *sm,
struct eap_ttls_data *data,
struct eap_method_ret *ret,
struct eap_hdr *hdr, size_t len,
u8 method, struct wpabuf **resp)
int vendor, enum eap_type method,
struct wpabuf **resp)
{
#ifdef EAP_TNC
if (data->tnc_started && data->phase2_method &&
data->phase2_priv && method == EAP_TYPE_TNC &&
data->phase2_priv &&
vendor == EAP_VENDOR_IETF && method == EAP_TYPE_TNC &&
data->phase2_eap_type.method == EAP_TYPE_TNC)
return eap_ttls_phase2_eap_process(sm, data, ret, hdr, len,
resp);
if (data->ready_for_tnc && !data->tnc_started &&
method == EAP_TYPE_TNC) {
vendor == EAP_VENDOR_IETF && method == EAP_TYPE_TNC) {
wpa_printf(MSG_DEBUG, "EAP-TTLS: Start TNC after completed "
"EAP method");
data->tnc_started = 1;
@ -386,7 +388,7 @@ static int eap_ttls_phase2_request_eap_method(struct eap_sm *sm,
return -1;
}
data->phase2_eap_type.vendor = EAP_VENDOR_IETF;
data->phase2_eap_type.vendor = vendor;
data->phase2_eap_type.method = method;
wpa_printf(MSG_DEBUG, "EAP-TTLS: Selected "
"Phase 2 EAP vendor %d method %d (TNC)",
@ -400,10 +402,11 @@ static int eap_ttls_phase2_request_eap_method(struct eap_sm *sm,
if (data->phase2_eap_type.vendor == EAP_VENDOR_IETF &&
data->phase2_eap_type.method == EAP_TYPE_NONE)
eap_ttls_phase2_select_eap_method(data, method);
eap_ttls_phase2_select_eap_method(data, vendor, method);
if (method != data->phase2_eap_type.method || method == EAP_TYPE_NONE)
{
if (vendor != data->phase2_eap_type.vendor ||
method != data->phase2_eap_type.method ||
(vendor == EAP_VENDOR_IETF && method == EAP_TYPE_NONE)) {
if (eap_peer_tls_phase2_nak(data->phase2_eap_types,
data->num_phase2_eap_types,
hdr, resp))
@ -412,8 +415,7 @@ static int eap_ttls_phase2_request_eap_method(struct eap_sm *sm,
}
if (data->phase2_priv == NULL) {
data->phase2_method = eap_peer_get_eap_method(
EAP_VENDOR_IETF, method);
data->phase2_method = eap_peer_get_eap_method(vendor, method);
if (data->phase2_method) {
sm->init_phase2 = 1;
data->phase2_priv = data->phase2_method->init(sm);
@ -421,8 +423,9 @@ static int eap_ttls_phase2_request_eap_method(struct eap_sm *sm,
}
}
if (data->phase2_priv == NULL || data->phase2_method == NULL) {
wpa_printf(MSG_INFO, "EAP-TTLS: failed to initialize "
"Phase 2 EAP method %d", method);
wpa_printf(MSG_INFO,
"EAP-TTLS: failed to initialize Phase 2 EAP method %u:%u",
vendor, method);
return -1;
}
@ -451,9 +454,23 @@ static int eap_ttls_phase2_request_eap(struct eap_sm *sm,
case EAP_TYPE_IDENTITY:
*resp = eap_sm_buildIdentity(sm, hdr->identifier, 1);
break;
case EAP_TYPE_EXPANDED:
if (len < sizeof(struct eap_hdr) + 8) {
wpa_printf(MSG_INFO,
"EAP-TTLS: Too short Phase 2 request (expanded header) (len=%lu)",
(unsigned long) len);
return -1;
}
if (eap_ttls_phase2_request_eap_method(sm, data, ret, hdr, len,
WPA_GET_BE24(pos + 1),
WPA_GET_BE32(pos + 4),
resp) < 0)
return -1;
break;
default:
if (eap_ttls_phase2_request_eap_method(sm, data, ret, hdr, len,
*pos, resp) < 0)
EAP_VENDOR_IETF, *pos,
resp) < 0)
return -1;
break;
}