b94371af84
Use vendor specific RADIUS attributes for sending ANonce and EAPOL-Key msg 2/4 for the wpa_psk_radius=3 case. The vendor specific attributes for this are defined in FreeRADIUS as follows: BEGIN-VENDOR FreeRADIUS format=Extended-Vendor-Specific-5 ATTRIBUTE FreeRADIUS-802.1X-Anonce 1 octets[32] ATTRIBUTE FreeRADIUS-802.1X-EAPoL-Key-Msg 2 octets END-VENDOR FreeRADIUS Signed-off-by: Jouni Malinen <j@w1.fi>
745 lines
19 KiB
C
745 lines
19 KiB
C
/*
|
|
* hostapd / IEEE 802.11 authentication (ACL)
|
|
* Copyright (c) 2003-2022, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*
|
|
* Access control list for IEEE 802.11 authentication can uses statically
|
|
* configured ACL from configuration files or an external RADIUS server.
|
|
* Results from external RADIUS queries are cached to allow faster
|
|
* authentication frame processing.
|
|
*/
|
|
|
|
#include "utils/includes.h"
|
|
|
|
#include "utils/common.h"
|
|
#include "utils/eloop.h"
|
|
#include "radius/radius.h"
|
|
#include "radius/radius_client.h"
|
|
#include "hostapd.h"
|
|
#include "ap_config.h"
|
|
#include "ap_drv_ops.h"
|
|
#include "sta_info.h"
|
|
#include "wpa_auth.h"
|
|
#include "ieee802_11.h"
|
|
#include "ieee802_1x.h"
|
|
#include "ieee802_11_auth.h"
|
|
|
|
#define RADIUS_ACL_TIMEOUT 30
|
|
|
|
|
|
struct hostapd_cached_radius_acl {
|
|
struct os_reltime timestamp;
|
|
macaddr addr;
|
|
int accepted; /* HOSTAPD_ACL_* */
|
|
struct hostapd_cached_radius_acl *next;
|
|
struct radius_sta info;
|
|
};
|
|
|
|
|
|
struct hostapd_acl_query_data {
|
|
struct os_reltime timestamp;
|
|
u8 radius_id;
|
|
macaddr addr;
|
|
u8 *auth_msg; /* IEEE 802.11 authentication frame from station */
|
|
size_t auth_msg_len;
|
|
struct hostapd_acl_query_data *next;
|
|
bool radius_psk;
|
|
int akm;
|
|
u8 *anonce;
|
|
u8 *eapol;
|
|
size_t eapol_len;
|
|
};
|
|
|
|
|
|
#ifndef CONFIG_NO_RADIUS
|
|
static void hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl *e)
|
|
{
|
|
os_free(e->info.identity);
|
|
os_free(e->info.radius_cui);
|
|
hostapd_free_psk_list(e->info.psk);
|
|
os_free(e);
|
|
}
|
|
|
|
|
|
static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache)
|
|
{
|
|
struct hostapd_cached_radius_acl *prev;
|
|
|
|
while (acl_cache) {
|
|
prev = acl_cache;
|
|
acl_cache = acl_cache->next;
|
|
hostapd_acl_cache_free_entry(prev);
|
|
}
|
|
}
|
|
|
|
|
|
static int hostapd_acl_cache_get(struct hostapd_data *hapd, const u8 *addr,
|
|
struct radius_sta *out)
|
|
{
|
|
struct hostapd_cached_radius_acl *entry;
|
|
struct os_reltime now;
|
|
|
|
os_get_reltime(&now);
|
|
|
|
for (entry = hapd->acl_cache; entry; entry = entry->next) {
|
|
if (os_memcmp(entry->addr, addr, ETH_ALEN) != 0)
|
|
continue;
|
|
|
|
if (os_reltime_expired(&now, &entry->timestamp,
|
|
RADIUS_ACL_TIMEOUT))
|
|
return -1; /* entry has expired */
|
|
*out = entry->info;
|
|
|
|
return entry->accepted;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
|
|
|
|
static void hostapd_acl_query_free(struct hostapd_acl_query_data *query)
|
|
{
|
|
if (!query)
|
|
return;
|
|
os_free(query->auth_msg);
|
|
os_free(query->anonce);
|
|
os_free(query->eapol);
|
|
os_free(query);
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_NO_RADIUS
|
|
static int hostapd_radius_acl_query(struct hostapd_data *hapd, const u8 *addr,
|
|
struct hostapd_acl_query_data *query)
|
|
{
|
|
struct radius_msg *msg;
|
|
char buf[128];
|
|
|
|
query->radius_id = radius_client_get_id(hapd->radius);
|
|
msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id);
|
|
if (!msg)
|
|
return -1;
|
|
|
|
if (radius_msg_make_authenticator(msg) < 0) {
|
|
wpa_printf(MSG_INFO, "Could not make Request Authenticator");
|
|
goto fail;
|
|
}
|
|
|
|
os_snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr));
|
|
if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf,
|
|
os_strlen(buf))) {
|
|
wpa_printf(MSG_DEBUG, "Could not add User-Name");
|
|
goto fail;
|
|
}
|
|
|
|
if (!radius_msg_add_attr_user_password(
|
|
msg, (u8 *) buf, os_strlen(buf),
|
|
hapd->conf->radius->auth_server->shared_secret,
|
|
hapd->conf->radius->auth_server->shared_secret_len)) {
|
|
wpa_printf(MSG_DEBUG, "Could not add User-Password");
|
|
goto fail;
|
|
}
|
|
|
|
if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr,
|
|
NULL, msg) < 0)
|
|
goto fail;
|
|
|
|
os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
|
|
MAC2STR(addr));
|
|
if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
|
|
(u8 *) buf, os_strlen(buf))) {
|
|
wpa_printf(MSG_DEBUG, "Could not add Calling-Station-Id");
|
|
goto fail;
|
|
}
|
|
|
|
os_snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b");
|
|
if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
|
|
(u8 *) buf, os_strlen(buf))) {
|
|
wpa_printf(MSG_DEBUG, "Could not add Connect-Info");
|
|
goto fail;
|
|
}
|
|
|
|
if (query->akm &&
|
|
!radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
|
|
wpa_akm_to_suite(query->akm))) {
|
|
wpa_printf(MSG_DEBUG, "Could not add WLAN-AKM-Suite");
|
|
goto fail;
|
|
}
|
|
|
|
if (query->anonce &&
|
|
!radius_msg_add_ext_vs(msg, RADIUS_ATTR_EXT_VENDOR_SPECIFIC_5,
|
|
RADIUS_VENDOR_ID_FREERADIUS,
|
|
RADIUS_VENDOR_ATTR_FREERADIUS_802_1X_ANONCE,
|
|
query->anonce, WPA_NONCE_LEN)) {
|
|
wpa_printf(MSG_DEBUG, "Could not add FreeRADIUS-802.1X-Anonce");
|
|
goto fail;
|
|
}
|
|
|
|
if (query->eapol &&
|
|
!radius_msg_add_ext_vs(msg, RADIUS_ATTR_EXT_VENDOR_SPECIFIC_5,
|
|
RADIUS_VENDOR_ID_FREERADIUS,
|
|
RADIUS_VENDOR_ATTR_FREERADIUS_802_1X_EAPOL_KEY_MSG,
|
|
query->eapol, query->eapol_len)) {
|
|
wpa_printf(MSG_DEBUG, "Could not add FreeRADIUS-802.1X-EAPoL-Key-Msg");
|
|
goto fail;
|
|
}
|
|
|
|
if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr) < 0)
|
|
goto fail;
|
|
return 0;
|
|
|
|
fail:
|
|
radius_msg_free(msg);
|
|
return -1;
|
|
}
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
|
|
|
|
/**
|
|
* hostapd_check_acl - Check a specified STA against accept/deny ACLs
|
|
* @hapd: hostapd BSS data
|
|
* @addr: MAC address of the STA
|
|
* @vlan_id: Buffer for returning VLAN ID
|
|
* Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
|
|
*/
|
|
int hostapd_check_acl(struct hostapd_data *hapd, const u8 *addr,
|
|
struct vlan_description *vlan_id)
|
|
{
|
|
if (hostapd_maclist_found(hapd->conf->accept_mac,
|
|
hapd->conf->num_accept_mac, addr, vlan_id))
|
|
return HOSTAPD_ACL_ACCEPT;
|
|
|
|
if (hostapd_maclist_found(hapd->conf->deny_mac,
|
|
hapd->conf->num_deny_mac, addr, vlan_id))
|
|
return HOSTAPD_ACL_REJECT;
|
|
|
|
if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
|
|
return HOSTAPD_ACL_ACCEPT;
|
|
if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
|
|
return HOSTAPD_ACL_REJECT;
|
|
|
|
return HOSTAPD_ACL_PENDING;
|
|
}
|
|
|
|
|
|
/**
|
|
* hostapd_allowed_address - Check whether a specified STA can be authenticated
|
|
* @hapd: hostapd BSS data
|
|
* @addr: MAC address of the STA
|
|
* @msg: Authentication message
|
|
* @len: Length of msg in octets
|
|
* @out.session_timeout: Buffer for returning session timeout (from RADIUS)
|
|
* @out.acct_interim_interval: Buffer for returning account interval (from
|
|
* RADIUS)
|
|
* @out.vlan_id: Buffer for returning VLAN ID
|
|
* @out.psk: Linked list buffer for returning WPA PSK
|
|
* @out.identity: Buffer for returning identity (from RADIUS)
|
|
* @out.radius_cui: Buffer for returning CUI (from RADIUS)
|
|
* @is_probe_req: Whether this query for a Probe Request frame
|
|
* Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
|
|
*
|
|
* The caller is responsible for properly cloning the returned out->identity and
|
|
* out->radius_cui and out->psk values.
|
|
*/
|
|
int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
|
|
const u8 *msg, size_t len, struct radius_sta *out,
|
|
int is_probe_req)
|
|
{
|
|
int res;
|
|
|
|
os_memset(out, 0, sizeof(*out));
|
|
|
|
res = hostapd_check_acl(hapd, addr, &out->vlan_id);
|
|
if (res != HOSTAPD_ACL_PENDING)
|
|
return res;
|
|
|
|
if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
|
|
#ifdef CONFIG_NO_RADIUS
|
|
return HOSTAPD_ACL_REJECT;
|
|
#else /* CONFIG_NO_RADIUS */
|
|
struct hostapd_acl_query_data *query;
|
|
|
|
if (is_probe_req) {
|
|
/* Skip RADIUS queries for Probe Request frames to avoid
|
|
* excessive load on the authentication server. */
|
|
return HOSTAPD_ACL_ACCEPT;
|
|
};
|
|
|
|
if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
|
|
os_memset(&out->vlan_id, 0, sizeof(out->vlan_id));
|
|
|
|
/* Check whether ACL cache has an entry for this station */
|
|
res = hostapd_acl_cache_get(hapd, addr, out);
|
|
if (res == HOSTAPD_ACL_ACCEPT ||
|
|
res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
|
|
return res;
|
|
if (res == HOSTAPD_ACL_REJECT)
|
|
return HOSTAPD_ACL_REJECT;
|
|
|
|
query = hapd->acl_queries;
|
|
while (query) {
|
|
if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) {
|
|
/* pending query in RADIUS retransmit queue;
|
|
* do not generate a new one */
|
|
return HOSTAPD_ACL_PENDING;
|
|
}
|
|
query = query->next;
|
|
}
|
|
|
|
if (!hapd->conf->radius->auth_server)
|
|
return HOSTAPD_ACL_REJECT;
|
|
|
|
/* No entry in the cache - query external RADIUS server */
|
|
query = os_zalloc(sizeof(*query));
|
|
if (!query) {
|
|
wpa_printf(MSG_ERROR, "malloc for query data failed");
|
|
return HOSTAPD_ACL_REJECT;
|
|
}
|
|
os_get_reltime(&query->timestamp);
|
|
os_memcpy(query->addr, addr, ETH_ALEN);
|
|
if (hostapd_radius_acl_query(hapd, addr, query)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Failed to send Access-Request for ACL query.");
|
|
hostapd_acl_query_free(query);
|
|
return HOSTAPD_ACL_REJECT;
|
|
}
|
|
|
|
query->auth_msg = os_memdup(msg, len);
|
|
if (!query->auth_msg) {
|
|
wpa_printf(MSG_ERROR,
|
|
"Failed to allocate memory for auth frame.");
|
|
hostapd_acl_query_free(query);
|
|
return HOSTAPD_ACL_REJECT;
|
|
}
|
|
query->auth_msg_len = len;
|
|
query->next = hapd->acl_queries;
|
|
hapd->acl_queries = query;
|
|
|
|
/* Queued data will be processed in hostapd_acl_recv_radius()
|
|
* when RADIUS server replies to the sent Access-Request. */
|
|
return HOSTAPD_ACL_PENDING;
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
}
|
|
|
|
return HOSTAPD_ACL_REJECT;
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_NO_RADIUS
|
|
static void hostapd_acl_expire_cache(struct hostapd_data *hapd,
|
|
struct os_reltime *now)
|
|
{
|
|
struct hostapd_cached_radius_acl *prev, *entry, *tmp;
|
|
|
|
prev = NULL;
|
|
entry = hapd->acl_cache;
|
|
|
|
while (entry) {
|
|
if (os_reltime_expired(now, &entry->timestamp,
|
|
RADIUS_ACL_TIMEOUT)) {
|
|
wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR
|
|
" has expired.", MAC2STR(entry->addr));
|
|
if (prev)
|
|
prev->next = entry->next;
|
|
else
|
|
hapd->acl_cache = entry->next;
|
|
hostapd_drv_set_radius_acl_expire(hapd, entry->addr);
|
|
tmp = entry;
|
|
entry = entry->next;
|
|
hostapd_acl_cache_free_entry(tmp);
|
|
continue;
|
|
}
|
|
|
|
prev = entry;
|
|
entry = entry->next;
|
|
}
|
|
}
|
|
|
|
|
|
static void hostapd_acl_expire_queries(struct hostapd_data *hapd,
|
|
struct os_reltime *now)
|
|
{
|
|
struct hostapd_acl_query_data *prev, *entry, *tmp;
|
|
|
|
prev = NULL;
|
|
entry = hapd->acl_queries;
|
|
|
|
while (entry) {
|
|
if (os_reltime_expired(now, &entry->timestamp,
|
|
RADIUS_ACL_TIMEOUT)) {
|
|
wpa_printf(MSG_DEBUG, "ACL query for " MACSTR
|
|
" has expired.", MAC2STR(entry->addr));
|
|
if (prev)
|
|
prev->next = entry->next;
|
|
else
|
|
hapd->acl_queries = entry->next;
|
|
|
|
tmp = entry;
|
|
entry = entry->next;
|
|
hostapd_acl_query_free(tmp);
|
|
continue;
|
|
}
|
|
|
|
prev = entry;
|
|
entry = entry->next;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* hostapd_acl_expire - ACL cache expiration callback
|
|
* @hapd: struct hostapd_data *
|
|
*/
|
|
void hostapd_acl_expire(struct hostapd_data *hapd)
|
|
{
|
|
struct os_reltime now;
|
|
|
|
os_get_reltime(&now);
|
|
hostapd_acl_expire_cache(hapd, &now);
|
|
hostapd_acl_expire_queries(hapd, &now);
|
|
}
|
|
|
|
|
|
static void decode_tunnel_passwords(struct hostapd_data *hapd,
|
|
const u8 *shared_secret,
|
|
size_t shared_secret_len,
|
|
struct radius_msg *msg,
|
|
struct radius_msg *req,
|
|
struct hostapd_cached_radius_acl *cache)
|
|
{
|
|
int passphraselen;
|
|
char *passphrase;
|
|
size_t i;
|
|
struct hostapd_sta_wpa_psk_short *psk;
|
|
|
|
/*
|
|
* Decode all tunnel passwords as PSK and save them into a linked list.
|
|
*/
|
|
for (i = 0; ; i++) {
|
|
passphrase = radius_msg_get_tunnel_password(
|
|
msg, &passphraselen, shared_secret, shared_secret_len,
|
|
req, i);
|
|
/*
|
|
* Passphrase is NULL iff there is no i-th Tunnel-Password
|
|
* attribute in msg.
|
|
*/
|
|
if (!passphrase)
|
|
break;
|
|
|
|
/*
|
|
* Passphase should be 8..63 chars (to be hashed with SSID)
|
|
* or 64 chars hex string (no separate hashing with SSID).
|
|
*/
|
|
|
|
if (passphraselen < MIN_PASSPHRASE_LEN ||
|
|
passphraselen > MAX_PASSPHRASE_LEN + 1)
|
|
goto free_pass;
|
|
|
|
/*
|
|
* passphrase does not contain the NULL termination.
|
|
* Add it here as pbkdf2_sha1() requires it.
|
|
*/
|
|
psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
|
|
if (psk) {
|
|
if ((passphraselen == MAX_PASSPHRASE_LEN + 1) &&
|
|
(hexstr2bin(passphrase, psk->psk, PMK_LEN) < 0)) {
|
|
hostapd_logger(hapd, cache->addr,
|
|
HOSTAPD_MODULE_RADIUS,
|
|
HOSTAPD_LEVEL_WARNING,
|
|
"invalid hex string (%d chars) in Tunnel-Password",
|
|
passphraselen);
|
|
goto skip;
|
|
} else if (passphraselen <= MAX_PASSPHRASE_LEN) {
|
|
os_memcpy(psk->passphrase, passphrase,
|
|
passphraselen);
|
|
psk->is_passphrase = 1;
|
|
}
|
|
psk->next = cache->info.psk;
|
|
cache->info.psk = psk;
|
|
psk = NULL;
|
|
}
|
|
skip:
|
|
os_free(psk);
|
|
free_pass:
|
|
os_free(passphrase);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* hostapd_acl_recv_radius - Process incoming RADIUS Authentication messages
|
|
* @msg: RADIUS response message
|
|
* @req: RADIUS request message
|
|
* @shared_secret: RADIUS shared secret
|
|
* @shared_secret_len: Length of shared_secret in octets
|
|
* @data: Context data (struct hostapd_data *)
|
|
* Returns: RADIUS_RX_PROCESSED if RADIUS message was a reply to ACL query (and
|
|
* was processed here) or RADIUS_RX_UNKNOWN if not.
|
|
*/
|
|
static RadiusRxResult
|
|
hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
|
|
const u8 *shared_secret, size_t shared_secret_len,
|
|
void *data)
|
|
{
|
|
struct hostapd_data *hapd = data;
|
|
struct hostapd_acl_query_data *query, *prev;
|
|
struct hostapd_cached_radius_acl *cache;
|
|
struct radius_sta *info;
|
|
struct radius_hdr *hdr = radius_msg_get_hdr(msg);
|
|
|
|
query = hapd->acl_queries;
|
|
prev = NULL;
|
|
while (query) {
|
|
if (query->radius_id == hdr->identifier)
|
|
break;
|
|
prev = query;
|
|
query = query->next;
|
|
}
|
|
if (!query)
|
|
return RADIUS_RX_UNKNOWN;
|
|
|
|
wpa_printf(MSG_DEBUG,
|
|
"Found matching Access-Request for RADIUS message (id=%d)",
|
|
query->radius_id);
|
|
|
|
if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
|
|
wpa_printf(MSG_INFO,
|
|
"Incoming RADIUS packet did not have correct authenticator - dropped");
|
|
return RADIUS_RX_INVALID_AUTHENTICATOR;
|
|
}
|
|
|
|
if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
|
|
hdr->code != RADIUS_CODE_ACCESS_REJECT) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Unknown RADIUS message code %d to ACL query",
|
|
hdr->code);
|
|
return RADIUS_RX_UNKNOWN;
|
|
}
|
|
|
|
/* Insert Accept/Reject info into ACL cache */
|
|
cache = os_zalloc(sizeof(*cache));
|
|
if (!cache) {
|
|
wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry");
|
|
goto done;
|
|
}
|
|
os_get_reltime(&cache->timestamp);
|
|
os_memcpy(cache->addr, query->addr, sizeof(cache->addr));
|
|
info = &cache->info;
|
|
if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
|
|
u8 *buf;
|
|
size_t len;
|
|
|
|
if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
|
|
&info->session_timeout) == 0)
|
|
cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
|
|
else
|
|
cache->accepted = HOSTAPD_ACL_ACCEPT;
|
|
|
|
if (radius_msg_get_attr_int32(
|
|
msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
|
|
&info->acct_interim_interval) == 0 &&
|
|
info->acct_interim_interval < 60) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Ignored too small Acct-Interim-Interval %d for STA "
|
|
MACSTR,
|
|
info->acct_interim_interval,
|
|
MAC2STR(query->addr));
|
|
info->acct_interim_interval = 0;
|
|
}
|
|
|
|
if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED)
|
|
info->vlan_id.notempty = !!radius_msg_get_vlanid(
|
|
msg, &info->vlan_id.untagged,
|
|
MAX_NUM_TAGGED_VLAN, info->vlan_id.tagged);
|
|
|
|
decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
|
|
msg, req, cache);
|
|
|
|
if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
|
|
&buf, &len, NULL) == 0) {
|
|
info->identity = os_zalloc(len + 1);
|
|
if (info->identity)
|
|
os_memcpy(info->identity, buf, len);
|
|
}
|
|
if (radius_msg_get_attr_ptr(
|
|
msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
|
|
&buf, &len, NULL) == 0) {
|
|
info->radius_cui = os_zalloc(len + 1);
|
|
if (info->radius_cui)
|
|
os_memcpy(info->radius_cui, buf, len);
|
|
}
|
|
|
|
if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED &&
|
|
!info->psk)
|
|
cache->accepted = HOSTAPD_ACL_REJECT;
|
|
|
|
if (info->vlan_id.notempty &&
|
|
!hostapd_vlan_valid(hapd->conf->vlan, &info->vlan_id)) {
|
|
hostapd_logger(hapd, query->addr,
|
|
HOSTAPD_MODULE_RADIUS,
|
|
HOSTAPD_LEVEL_INFO,
|
|
"Invalid VLAN %d%s received from RADIUS server",
|
|
info->vlan_id.untagged,
|
|
info->vlan_id.tagged[0] ? "+" : "");
|
|
os_memset(&info->vlan_id, 0, sizeof(info->vlan_id));
|
|
}
|
|
if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
|
|
!info->vlan_id.notempty)
|
|
cache->accepted = HOSTAPD_ACL_REJECT;
|
|
} else
|
|
cache->accepted = HOSTAPD_ACL_REJECT;
|
|
cache->next = hapd->acl_cache;
|
|
hapd->acl_cache = cache;
|
|
|
|
if (query->radius_psk) {
|
|
struct sta_info *sta;
|
|
bool success = cache->accepted == HOSTAPD_ACL_ACCEPT;
|
|
|
|
sta = ap_get_sta(hapd, query->addr);
|
|
if (!sta || !sta->wpa_sm) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"No STA/SM entry found for the RADIUS PSK response");
|
|
goto done;
|
|
}
|
|
#ifdef NEED_AP_MLME
|
|
if (success &&
|
|
(ieee802_11_set_radius_info(hapd, sta, cache->accepted,
|
|
info) < 0 ||
|
|
ap_sta_bind_vlan(hapd, sta) < 0))
|
|
success = false;
|
|
#endif /* NEED_AP_MLME */
|
|
wpa_auth_sta_radius_psk_resp(sta->wpa_sm, success);
|
|
} else {
|
|
#ifdef CONFIG_DRIVER_RADIUS_ACL
|
|
hostapd_drv_set_radius_acl_auth(hapd, query->addr,
|
|
cache->accepted,
|
|
info->session_timeout);
|
|
#else /* CONFIG_DRIVER_RADIUS_ACL */
|
|
#ifdef NEED_AP_MLME
|
|
/* Re-send original authentication frame for 802.11 processing
|
|
*/
|
|
wpa_printf(MSG_DEBUG,
|
|
"Re-sending authentication frame after successful RADIUS ACL query");
|
|
ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len,
|
|
NULL);
|
|
#endif /* NEED_AP_MLME */
|
|
#endif /* CONFIG_DRIVER_RADIUS_ACL */
|
|
}
|
|
|
|
done:
|
|
if (!prev)
|
|
hapd->acl_queries = query->next;
|
|
else
|
|
prev->next = query->next;
|
|
|
|
hostapd_acl_query_free(query);
|
|
|
|
return RADIUS_RX_PROCESSED;
|
|
}
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
|
|
|
|
/**
|
|
* hostapd_acl_init: Initialize IEEE 802.11 ACL
|
|
* @hapd: hostapd BSS data
|
|
* Returns: 0 on success, -1 on failure
|
|
*/
|
|
int hostapd_acl_init(struct hostapd_data *hapd)
|
|
{
|
|
#ifndef CONFIG_NO_RADIUS
|
|
if (radius_client_register(hapd->radius, RADIUS_AUTH,
|
|
hostapd_acl_recv_radius, hapd))
|
|
return -1;
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL
|
|
* @hapd: hostapd BSS data
|
|
*/
|
|
void hostapd_acl_deinit(struct hostapd_data *hapd)
|
|
{
|
|
struct hostapd_acl_query_data *query, *prev;
|
|
|
|
#ifndef CONFIG_NO_RADIUS
|
|
hostapd_acl_cache_free(hapd->acl_cache);
|
|
hapd->acl_cache = NULL;
|
|
#endif /* CONFIG_NO_RADIUS */
|
|
|
|
query = hapd->acl_queries;
|
|
hapd->acl_queries = NULL;
|
|
while (query) {
|
|
prev = query;
|
|
query = query->next;
|
|
hostapd_acl_query_free(prev);
|
|
}
|
|
}
|
|
|
|
|
|
void hostapd_copy_psk_list(struct hostapd_sta_wpa_psk_short **psk,
|
|
struct hostapd_sta_wpa_psk_short *src)
|
|
{
|
|
if (!psk)
|
|
return;
|
|
|
|
if (src)
|
|
src->ref++;
|
|
|
|
*psk = src;
|
|
}
|
|
|
|
|
|
void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk)
|
|
{
|
|
if (psk && psk->ref) {
|
|
/* This will be freed when the last reference is dropped. */
|
|
psk->ref--;
|
|
return;
|
|
}
|
|
|
|
while (psk) {
|
|
struct hostapd_sta_wpa_psk_short *prev = psk;
|
|
psk = psk->next;
|
|
bin_clear_free(prev, sizeof(*prev));
|
|
}
|
|
}
|
|
|
|
|
|
#ifndef CONFIG_NO_RADIUS
|
|
void hostapd_acl_req_radius_psk(struct hostapd_data *hapd, const u8 *addr,
|
|
int key_mgmt, const u8 *anonce,
|
|
const u8 *eapol, size_t eapol_len)
|
|
{
|
|
struct hostapd_acl_query_data *query;
|
|
|
|
query = os_zalloc(sizeof(*query));
|
|
if (!query)
|
|
return;
|
|
|
|
query->radius_psk = true;
|
|
query->akm = key_mgmt;
|
|
os_get_reltime(&query->timestamp);
|
|
os_memcpy(query->addr, addr, ETH_ALEN);
|
|
if (anonce)
|
|
query->anonce = os_memdup(anonce, WPA_NONCE_LEN);
|
|
if (eapol) {
|
|
query->eapol = os_memdup(eapol, eapol_len);
|
|
query->eapol_len = eapol_len;
|
|
}
|
|
if (hostapd_radius_acl_query(hapd, addr, query)) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"Failed to send Access-Request for RADIUS PSK/ACL query");
|
|
hostapd_acl_query_free(query);
|
|
return;
|
|
}
|
|
|
|
query->next = hapd->acl_queries;
|
|
hapd->acl_queries = query;
|
|
}
|
|
#endif /* CONFIG_NO_RADIUS */
|