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EAP-SIM/AKA server: Allow pseudonym to be used after unknown reauth id

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If the peer uses an unknown reauth id, it would still be possible to use
pseudonym instead of permanent id. Allow this by changing the
AT_PERMANENT_ID_REQ to AT_FULLAUTH_ID_REQ in case unknown reauth id is
used in EAP-Response/Identity.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-06-15 18:49:54 +03:00 committed by Jouni Malinen
parent ef35f5a0fd
commit 1cebaabd80
2 changed files with 23 additions and 4 deletions
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14
src/eap_server/eap_server_aka.c
View File

@ -266,8 +266,18 @@ static struct wpabuf * eap_aka_build_identity(struct eap_sm *sm,
EAP_AKA_SUBTYPE_IDENTITY);
if (eap_sim_db_identity_known(sm->eap_sim_db_priv, sm->identity,
sm->identity_len)) {
wpa_printf(MSG_DEBUG, " AT_PERMANENT_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_PERMANENT_ID_REQ, 0, NULL, 0);
if (sm->identity_len > 0 &&
(sm->identity[0] == EAP_AKA_REAUTH_ID_PREFIX ||
sm->identity[0] == EAP_AKA_PRIME_REAUTH_ID_PREFIX)) {
/* Reauth id may have expired - try fullauth */
wpa_printf(MSG_DEBUG, " AT_FULLAUTH_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_FULLAUTH_ID_REQ, 0,
NULL, 0);
} else {
wpa_printf(MSG_DEBUG, " AT_PERMANENT_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_PERMANENT_ID_REQ, 0,
NULL, 0);
}
} else {
/*
* RFC 4187, Chap. 4.1.4 recommends that identity from EAP is

13
src/eap_server/eap_server_sim.c
View File

@ -107,8 +107,17 @@ static struct wpabuf * eap_sim_build_start(struct eap_sm *sm,
EAP_SIM_SUBTYPE_START);
if (eap_sim_db_identity_known(sm->eap_sim_db_priv, sm->identity,
sm->identity_len)) {
wpa_printf(MSG_DEBUG, " AT_PERMANENT_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_PERMANENT_ID_REQ, 0, NULL, 0);
if (sm->identity_len > 0 &&
sm->identity[0] == EAP_SIM_REAUTH_ID_PREFIX) {
/* Reauth id may have expired - try fullauth */
wpa_printf(MSG_DEBUG, " AT_FULLAUTH_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_FULLAUTH_ID_REQ, 0,
NULL, 0);
} else {
wpa_printf(MSG_DEBUG, " AT_PERMANENT_ID_REQ");
eap_sim_msg_add(msg, EAP_SIM_AT_PERMANENT_ID_REQ, 0,
NULL, 0);
}
} else {
/*
* RFC 4186, Chap. 4.2.4 recommends that identity from EAP is