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RADIUS DAS: Add support for NAS identification attributes

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This allows NAS-IP-Address, NAS-Identifier, and NAS-IPv6-Address to be
included in the Disconnect-Request packets.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-02-20 13:55:36 +02:00 committed by Jouni Malinen
parent e58f59cb58
commit cb10c7d12d
3 changed files with 70 additions and 1 deletions
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29
src/ap/hostapd.c
View file

@ -529,7 +529,34 @@ static int mac_in_conf(struct hostapd_config *conf, const void *a)
static int hostapd_das_nas_mismatch(struct hostapd_data *hapd,
struct radius_das_attrs *attr)
{
/* TODO */
if (attr->nas_identifier &&
(!hapd->conf->nas_identifier ||
os_strlen(hapd->conf->nas_identifier) !=
attr->nas_identifier_len ||
os_memcmp(hapd->conf->nas_identifier, attr->nas_identifier,
attr->nas_identifier_len) != 0)) {
wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-Identifier mismatch");
return 1;
}
if (attr->nas_ip_addr &&
(hapd->conf->own_ip_addr.af != AF_INET ||
os_memcmp(&hapd->conf->own_ip_addr.u.v4, attr->nas_ip_addr, 4) !=
0)) {
wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-IP-Address mismatch");
return 1;
}
#ifdef CONFIG_IPV6
if (attr->nas_ipv6_addr &&
(hapd->conf->own_ip_addr.af != AF_INET6 ||
os_memcmp(&hapd->conf->own_ip_addr.u.v6, attr->nas_ipv6_addr, 16)
!= 0)) {
wpa_printf(MSG_DEBUG, "RADIUS DAS: NAS-IPv6-Address mismatch");
return 1;
}
#endif /* CONFIG_IPV6 */
return 0;
}

35
src/radius/radius_das.c
View file

@ -38,11 +38,16 @@ static struct radius_msg * radius_das_disconnect(struct radius_das_data *das,
struct radius_msg *reply;
u8 allowed[] = {
RADIUS_ATTR_USER_NAME,
RADIUS_ATTR_NAS_IP_ADDRESS,
RADIUS_ATTR_CALLING_STATION_ID,
RADIUS_ATTR_NAS_IDENTIFIER,
RADIUS_ATTR_ACCT_SESSION_ID,
RADIUS_ATTR_EVENT_TIMESTAMP,
RADIUS_ATTR_MESSAGE_AUTHENTICATOR,
RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
#ifdef CONFIG_IPV6
RADIUS_ATTR_NAS_IPV6_ADDRESS,
#endif /* CONFIG_IPV6 */
0
};
int error = 405;
@ -67,6 +72,36 @@ static struct radius_msg * radius_das_disconnect(struct radius_das_data *das,
os_memset(&attrs, 0, sizeof(attrs));
if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
&buf, &len, NULL) == 0) {
if (len != 4) {
wpa_printf(MSG_INFO, "DAS: Invalid NAS-IP-Address from %s:%d",
abuf, from_port);
error = 407;
goto fail;
}
attrs.nas_ip_addr = buf;
}
#ifdef CONFIG_IPV6
if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
&buf, &len, NULL) == 0) {
if (len != 16) {
wpa_printf(MSG_INFO, "DAS: Invalid NAS-IPv6-Address from %s:%d",
abuf, from_port);
error = 407;
goto fail;
}
attrs.nas_ipv6_addr = buf;
}
#endif /* CONFIG_IPV6 */
if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
&buf, &len, NULL) == 0) {
attrs.nas_identifier = buf;
attrs.nas_identifier_len = len;
}
if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CALLING_STATION_ID,
&buf, &len, NULL) == 0) {
if (len >= sizeof(tmp))

7
src/radius/radius_das.h
View file

@ -18,6 +18,13 @@ enum radius_das_res {
};
struct radius_das_attrs {
/* NAS identification attributes */
const u8 *nas_ip_addr;
const u8 *nas_identifier;
size_t nas_identifier_len;
const u8 *nas_ipv6_addr;
/* Session identification attributes */
const u8 *sta_addr;
const u8 *user_name;
size_t user_name_len;