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EAP-PAX: Derive EAP Session-Id

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This adds EAP-PAX server and peer method functions for deriving
Session-Id from Method-Id per RFC 4746 and RFC 5247.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-12-01 01:45:17 +02:00
parent a7bec9e7b2
commit 92e3c0b14c
4 changed files with 55 additions and 6 deletions
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24
src/eap_server/eap_server_pax.c
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@ -36,6 +36,7 @@ struct eap_pax_data {
u8 mk[EAP_PAX_MK_LEN];
u8 ck[EAP_PAX_CK_LEN];
u8 ick[EAP_PAX_ICK_LEN];
u8 mid[EAP_PAX_MID_LEN];
int keys_set;
char *cid;
size_t cid_len;
@ -387,7 +388,7 @@ static void eap_pax_process_std_2(struct eap_sm *sm,
if (eap_pax_initial_key_derivation(data->mac_id, data->ak,
data->rand.e, data->mk, data->ck,
data->ick) < 0) {
data->ick, data->mid) < 0) {
wpa_printf(MSG_INFO, "EAP-PAX: Failed to complete initial "
"key derivation");
data->state = FAILURE;
@ -541,6 +542,26 @@ static Boolean eap_pax_isSuccess(struct eap_sm *sm, void *priv)
}
static u8 * eap_pax_get_session_id(struct eap_sm *sm, void *priv, size_t *len)
{
struct eap_pax_data *data = priv;
u8 *sid;
if (data->state != SUCCESS)
return NULL;
sid = os_malloc(1 + EAP_PAX_MID_LEN);
if (sid == NULL)
return NULL;
*len = 1 + EAP_PAX_MID_LEN;
sid[0] = EAP_TYPE_PAX;
os_memcpy(sid + 1, data->mid, EAP_PAX_MID_LEN);
return sid;
}
int eap_server_pax_register(void)
{
struct eap_method *eap;
@ -560,6 +581,7 @@ int eap_server_pax_register(void)
eap->getKey = eap_pax_getKey;
eap->isSuccess = eap_pax_isSuccess;
eap->get_emsk = eap_pax_get_emsk;
eap->getSessionId = eap_pax_get_session_id;
ret = eap_server_method_register(eap);
if (ret)