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Added Milenage-GSM simulator for EAP-SIM

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CONFIG_SIM_SIMULATOR=y in .config and password="Ki:OPc" in network config
to enable.
This commit is contained in:
Jouni Malinen 2008-11-06 04:21:32 +02:00 • committed by Jouni Malinen
parent 31cbe002c9
commit 81eec387dd
3 changed files with 86 additions and 16 deletions
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85
src/eap_peer/eap_sim.c
View file

@ -19,6 +19,9 @@
#include "eap_config.h"
#include "pcsc_funcs.h"
#include "eap_common/eap_sim_common.h"
#ifdef CONFIG_SIM_SIMULATOR
#include "hlr_auc_gw/milenage.h"
#endif /* CONFIG_SIM_SIMULATOR */
struct eap_sim_data {
@ -142,26 +145,76 @@ static void eap_sim_deinit(struct eap_sm *sm, void *priv)
static int eap_sim_gsm_auth(struct eap_sm *sm, struct eap_sim_data *data)
{
struct eap_peer_config *conf;
wpa_printf(MSG_DEBUG, "EAP-SIM: GSM authentication algorithm");
#ifdef PCSC_FUNCS
if (scard_gsm_auth(sm->scard_ctx, data->rand[0],
data->sres[0], data->kc[0]) ||
scard_gsm_auth(sm->scard_ctx, data->rand[1],
data->sres[1], data->kc[1]) ||
(data->num_chal > 2 &&
scard_gsm_auth(sm->scard_ctx, data->rand[2],
data->sres[2], data->kc[2]))) {
wpa_printf(MSG_DEBUG, "EAP-SIM: GSM SIM authentication could "
"not be completed");
conf = eap_get_config(sm);
if (conf == NULL)
return -1;
if (conf->pcsc) {
if (scard_gsm_auth(sm->scard_ctx, data->rand[0],
data->sres[0], data->kc[0]) ||
scard_gsm_auth(sm->scard_ctx, data->rand[1],
data->sres[1], data->kc[1]) ||
(data->num_chal > 2 &&
scard_gsm_auth(sm->scard_ctx, data->rand[2],
data->sres[2], data->kc[2]))) {
wpa_printf(MSG_DEBUG, "EAP-SIM: GSM SIM "
"authentication could not be completed");
return -1;
}
return 0;
}
#else /* PCSC_FUNCS */
#ifdef CONFIG_SIM_SIMULATOR
if (conf->password) {
u8 opc[16], k[16];
const char *pos;
wpa_printf(MSG_DEBUG, "EAP-SIM: Use internal GSM-Milenage "
"implementation for authentication");
if (conf->password_len < 65) {
wpa_printf(MSG_DEBUG, "EAP-SIM: invalid GSM-Milenage "
"password");
return -1;
}
pos = (const char *) conf->password;
if (hexstr2bin(pos, k, 16))
return -1;
pos += 32;
if (*pos != ':')
return -1;
pos++;
if (hexstr2bin(pos, opc, 16))
return -1;
if (gsm_milenage(opc, k, data->rand[0],
data->sres[0], data->kc[0]) ||
gsm_milenage(opc, k, data->rand[1],
data->sres[1], data->kc[1]) ||
(data->num_chal > 2 &&
gsm_milenage(opc, k, data->rand[2],
data->sres[2], data->kc[2]))) {
wpa_printf(MSG_DEBUG, "EAP-SIM: GSM-Milenage "
"authentication could not be completed");
return -1;
}
return 0;
}
#endif /* CONFIG_SIM_SIMULATOR */
#ifdef CONFIG_SIM_HARDCODED
/* These hardcoded Kc and SRES values are used for testing. RAND to
* KC/SREC mapping is very bogus as far as real authentication is
* concerned, but it is quite useful for cases where the AS is rotating
* the order of pre-configured values. */
{
size_t i;
wpa_printf(MSG_DEBUG, "EAP-SIM: Use hardcoded Kc and SRES "
"values for testing");
for (i = 0; i < data->num_chal; i++) {
if (data->rand[i][0] == 0xaa) {
os_memcpy(data->kc[i],
@ -184,8 +237,16 @@ static int eap_sim_gsm_auth(struct eap_sm *sm, struct eap_sim_data *data)
}
}
}
#endif /* PCSC_FUNCS */
return 0;
#else /* CONFIG_SIM_HARDCODED */
wpa_printf(MSG_DEBUG, "EAP-SIM: No GSM authentication algorithm "
"enabled");
return -1;
#endif /* CONFIG_SIM_HARDCODED */
}