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EAP peer: Add Session-Id derivation

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This adds a new getSessionId() callback for EAP peer methods to allow
EAP Session-Id to be derived. This commits implements this for EAP-FAST,
EAP-GPSK, EAP-IKEv2, EAP-PEAP, EAP-TLS, and EAP-TTLS.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Stevent Li 2013-02-06 18:52:33 +02:00 • committed by Jouni Malinen
parent 9288e6625b
commit 950c563076
13 changed files with 457 additions and 2 deletions
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31
src/eap_peer/eap_ikev2.c
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@ -475,6 +475,36 @@ static u8 * eap_ikev2_get_emsk(struct eap_sm *sm, void *priv, size_t *len)
}
static u8 * eap_ikev2_get_session_id(struct eap_sm *sm, void *priv, size_t *len)
{
struct eap_ikev2_data *data = priv;
u8 *sid;
size_t sid_len;
size_t offset;
if (data->state != DONE || !data->keymat_ok)
return NULL;
sid_len = 1 + data->ikev2.i_nonce_len + data->ikev2.r_nonce_len;
sid = os_malloc(sid_len);
if (sid) {
offset = 0;
sid[offset] = EAP_TYPE_IKEV2;
offset++;
os_memcpy(sid + offset, data->ikev2.i_nonce,
data->ikev2.i_nonce_len);
offset += data->ikev2.i_nonce_len;
os_memcpy(sid + offset, data->ikev2.r_nonce,
data->ikev2.r_nonce_len);
*len = sid_len;
wpa_hexdump(MSG_DEBUG, "EAP-IKEV2: Derived Session-Id",
sid, sid_len);
}
return sid;
}
int eap_peer_ikev2_register(void)
{
struct eap_method *eap;
@ -492,6 +522,7 @@ int eap_peer_ikev2_register(void)
eap->isKeyAvailable = eap_ikev2_isKeyAvailable;
eap->getKey = eap_ikev2_getKey;
eap->get_emsk = eap_ikev2_get_emsk;
eap->getSessionId = eap_ikev2_get_session_id;
ret = eap_peer_method_register(eap);
if (ret)