static int sendrecv_eap(RADIUS_PACKET *rep)
{
RADIUS_PACKET *req = NULL;
VALUE_PAIR *vp, *vpnext;
int tried_eap_md5 = 0;
if (!rep) return -1;
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, vp->vp_strvalue, sizeof(password));
} else {
*password = '******';
}
again:
rep->id++;
/*
* if there are EAP types, encode them into an EAP-Message
*
*/
map_eap_methods(rep);
/*
* Fix up Digest-Attributes issues
*/
for (vp = rep->vps; vp != NULL; vp = vp->next) {
switch (vp->da->attr) {
default:
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
{
DICT_ATTR const *da;
uint8_t *p, *q;
p = talloc_array(vp, uint8_t, vp->length + 2);
memcpy(p + 2, vp->vp_octets, vp->length);
p[0] = vp->da->attr - PW_DIGEST_REALM + 1;
vp->length += 2;
p[1] = vp->length;
da = dict_attrbyvalue(PW_DIGEST_ATTRIBUTES, 0);
vp->da = da;
/*
* Re-do pairmemsteal ourselves,
* because we play games with
* vp->da, and pairmemsteal goes
* to GREAT lengths to sanitize
* and fix and change and
* double-check the various
* fields.
*/
memcpy(&q, &vp->vp_octets, sizeof(q));
talloc_free(q);
vp->vp_octets = talloc_steal(vp, p);
vp->type = VT_DATA;
VERIFY_VP(vp);
}
break;
}
}
/*
* If we've already sent a packet, free up the old
* one, and ensure that the next packet has a unique
* ID and authentication vector.
*/
if (rep->data) {
talloc_free(rep->data);
rep->data = NULL;
}
fr_md5_calc(rep->vector, rep->vector,
sizeof(rep->vector));
if (*password != '\0') {
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
uint8_t *p;
p = talloc_zero_array(vp, uint8_t, 17);
rad_chap_encode(rep, p, rep->id, vp);
pairmemsteal(vp, p);
}
} /* there WAS a password */
/* send the response, wait for the next request */
send_packet(rep, &req);
if (!req) return -1;
/* okay got back the packet, go and decode the EAP-Message. */
unmap_eap_methods(req);
debug_packet(req, R_RECV);
/* now look for the code type. */
for (vp = req->vps; vp != NULL; vp = vpnext) {
vpnext = vp->next;
switch (vp->da->attr) {
default:
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_MD5:
if(respond_eap_md5(req, rep) && tried_eap_md5 < 3)
{
tried_eap_md5++;
goto again;
}
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_SIM:
if(respond_eap_sim(req, rep))
{
goto again;
}
break;
}
}
return 1;
}
static int sendrecv_eap(RADIUS_PACKET *rep)
{
RADIUS_PACKET *req = NULL;
VALUE_PAIR *vp, *vpnext;
int tried_eap_md5 = 0;
/*
* Keep a copy of the the User-Password attribute.
*/
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, (char *)vp->vp_strvalue, sizeof(vp->vp_strvalue));
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, (char *)vp->vp_strvalue, sizeof(vp->vp_strvalue));
/*
* Otherwise keep a copy of the CHAP-Password attribute.
*/
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
strlcpy(password, (char *)vp->vp_strvalue, sizeof(vp->vp_strvalue));
} else {
*password = '******';
}
again:
rep->id++;
/*
* if there are EAP types, encode them into an EAP-Message
*
*/
map_eap_methods(rep);
/*
* Fix up Digest-Attributes issues
*/
for (vp = rep->vps; vp != NULL; vp = vp->next) {
switch (vp->da->attribute) {
default:
break;
case PW_DIGEST_REALM:
case PW_DIGEST_NONCE:
case PW_DIGEST_METHOD:
case PW_DIGEST_URI:
case PW_DIGEST_QOP:
case PW_DIGEST_ALGORITHM:
case PW_DIGEST_BODY_DIGEST:
case PW_DIGEST_CNONCE:
case PW_DIGEST_NONCE_COUNT:
case PW_DIGEST_USER_NAME:
/* overlapping! */
memmove(&vp->vp_strvalue[2], &vp->vp_octets[0], vp->length);
vp->vp_octets[0] = vp->da->attribute - PW_DIGEST_REALM + 1;
vp->length += 2;
vp->vp_octets[1] = vp->length;
vp->da->attribute = PW_DIGEST_ATTRIBUTES;
break;
}
}
/*
* If we've already sent a packet, free up the old
* one, and ensure that the next packet has a unique
* ID and authentication vector.
*/
if (rep->data) {
talloc_free(rep->data);
rep->data = NULL;
}
fr_md5_calc(rep->vector, rep->vector,
sizeof(rep->vector));
if (*password != '\0') {
if ((vp = pairfind(rep->vps, PW_CLEARTEXT_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_USER_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
} else if ((vp = pairfind(rep->vps, PW_CHAP_PASSWORD, 0, TAG_ANY)) != NULL) {
pairstrcpy(vp, password);
rad_chap_encode(rep, vp->vp_octets, rep->id, vp);
vp->length = 17;
}
} /* there WAS a password */
/* send the response, wait for the next request */
send_packet(rep, &req);
/* okay got back the packet, go and decode the EAP-Message. */
unmap_eap_methods(req);
debug_packet(req, R_RECV);
/* now look for the code type. */
for (vp = req->vps; vp != NULL; vp = vpnext) {
vpnext = vp->next;
switch (vp->da->attribute) {
default:
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_MD5:
if(respond_eap_md5(req, rep) && tried_eap_md5 < 3)
{
tried_eap_md5++;
goto again;
}
break;
case ATTRIBUTE_EAP_BASE+PW_EAP_SIM:
if(respond_eap_sim(req, rep))
{
goto again;
}
break;
}
}
return 1;
}
