7ef6947993
If requested, disable the network based on the HS 2.0 deauthentication request. Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
280 lines
7 KiB
C
280 lines
7 KiB
C
/*
|
|
* Copyright (c) 2009, Atheros Communications, Inc.
|
|
* Copyright (c) 2011-2012, Qualcomm Atheros, Inc.
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#include "common.h"
|
|
#include "eloop.h"
|
|
#include "common/ieee802_11_common.h"
|
|
#include "common/ieee802_11_defs.h"
|
|
#include "common/gas.h"
|
|
#include "common/wpa_ctrl.h"
|
|
#include "rsn_supp/wpa.h"
|
|
#include "wpa_supplicant_i.h"
|
|
#include "driver_i.h"
|
|
#include "config.h"
|
|
#include "bss.h"
|
|
#include "blacklist.h"
|
|
#include "gas_query.h"
|
|
#include "interworking.h"
|
|
#include "hs20_supplicant.h"
|
|
|
|
|
|
void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id)
|
|
{
|
|
u8 conf;
|
|
|
|
wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
|
|
wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
|
|
wpabuf_put_be24(buf, OUI_WFA);
|
|
wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
|
|
conf = HS20_VERSION;
|
|
if (pps_mo_id >= 0)
|
|
conf |= HS20_PPS_MO_ID_PRESENT;
|
|
wpabuf_put_u8(buf, conf);
|
|
if (pps_mo_id >= 0)
|
|
wpabuf_put_le16(buf, pps_mo_id);
|
|
}
|
|
|
|
|
|
int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
|
|
struct wpa_bss *bss)
|
|
{
|
|
if (!wpa_s->conf->hs20 || !ssid)
|
|
return 0;
|
|
|
|
if (ssid->parent_cred)
|
|
return 1;
|
|
|
|
if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
|
|
return 0;
|
|
|
|
/*
|
|
* This may catch some non-Hotspot 2.0 cases, but it is safer to do that
|
|
* than cause Hotspot 2.0 connections without indication element getting
|
|
* added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
|
|
*/
|
|
|
|
if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
|
|
return 0;
|
|
if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
|
|
return 0;
|
|
if (ssid->proto != WPA_PROTO_RSN)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
|
|
{
|
|
struct wpa_cred *cred;
|
|
|
|
if (ssid == NULL || ssid->parent_cred == NULL)
|
|
return 0;
|
|
|
|
for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
|
|
if (ssid->parent_cred == cred)
|
|
return cred->update_identifier;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
|
|
size_t payload_len)
|
|
{
|
|
struct wpabuf *buf;
|
|
u8 *len_pos;
|
|
|
|
buf = gas_anqp_build_initial_req(0, 100 + payload_len);
|
|
if (buf == NULL)
|
|
return NULL;
|
|
|
|
len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
|
|
wpabuf_put_be24(buf, OUI_WFA);
|
|
wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
|
|
if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
|
|
wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
|
|
wpabuf_put_u8(buf, 0); /* Reserved */
|
|
if (payload)
|
|
wpabuf_put_data(buf, payload, payload_len);
|
|
} else {
|
|
u8 i;
|
|
wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
|
|
wpabuf_put_u8(buf, 0); /* Reserved */
|
|
for (i = 0; i < 32; i++) {
|
|
if (stypes & BIT(i))
|
|
wpabuf_put_u8(buf, i);
|
|
}
|
|
}
|
|
gas_anqp_set_element_len(buf, len_pos);
|
|
|
|
gas_anqp_set_len(buf);
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
|
|
const u8 *payload, size_t payload_len)
|
|
{
|
|
struct wpabuf *buf;
|
|
int ret = 0;
|
|
int freq;
|
|
struct wpa_bss *bss;
|
|
int res;
|
|
|
|
freq = wpa_s->assoc_freq;
|
|
bss = wpa_bss_get_bssid(wpa_s, dst);
|
|
if (bss) {
|
|
wpa_bss_anqp_unshare_alloc(bss);
|
|
freq = bss->freq;
|
|
}
|
|
if (freq <= 0)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
|
|
"subtypes 0x%x", MAC2STR(dst), stypes);
|
|
|
|
buf = hs20_build_anqp_req(stypes, payload, payload_len);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
|
|
if (res < 0) {
|
|
wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
|
|
wpabuf_free(buf);
|
|
ret = -1;
|
|
} else
|
|
wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
|
|
"%u", res);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
|
|
const u8 *sa, const u8 *data, size_t slen)
|
|
{
|
|
const u8 *pos = data;
|
|
u8 subtype;
|
|
struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa);
|
|
struct wpa_bss_anqp *anqp = NULL;
|
|
|
|
if (slen < 2)
|
|
return;
|
|
|
|
if (bss)
|
|
anqp = bss->anqp;
|
|
|
|
subtype = *pos++;
|
|
slen--;
|
|
|
|
pos++; /* Reserved */
|
|
slen--;
|
|
|
|
switch (subtype) {
|
|
case HS20_STYPE_CAPABILITY_LIST:
|
|
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
|
|
" HS Capability List", MAC2STR(sa));
|
|
wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
|
|
break;
|
|
case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
|
|
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
|
|
" Operator Friendly Name", MAC2STR(sa));
|
|
wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
|
|
if (anqp) {
|
|
wpabuf_free(anqp->hs20_operator_friendly_name);
|
|
anqp->hs20_operator_friendly_name =
|
|
wpabuf_alloc_copy(pos, slen);
|
|
}
|
|
break;
|
|
case HS20_STYPE_WAN_METRICS:
|
|
wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
|
|
if (slen < 13) {
|
|
wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
|
|
"Metrics value from " MACSTR, MAC2STR(sa));
|
|
break;
|
|
}
|
|
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
|
|
" WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
|
|
pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
|
|
pos[9], pos[10], WPA_GET_LE16(pos + 11));
|
|
if (anqp) {
|
|
wpabuf_free(anqp->hs20_wan_metrics);
|
|
anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
|
|
}
|
|
break;
|
|
case HS20_STYPE_CONNECTION_CAPABILITY:
|
|
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
|
|
" Connection Capability", MAC2STR(sa));
|
|
wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
|
|
if (anqp) {
|
|
wpabuf_free(anqp->hs20_connection_capability);
|
|
anqp->hs20_connection_capability =
|
|
wpabuf_alloc_copy(pos, slen);
|
|
}
|
|
break;
|
|
case HS20_STYPE_OPERATING_CLASS:
|
|
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
|
|
" Operating Class", MAC2STR(sa));
|
|
wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
|
|
if (anqp) {
|
|
wpabuf_free(anqp->hs20_operating_class);
|
|
anqp->hs20_operating_class =
|
|
wpabuf_alloc_copy(pos, slen);
|
|
}
|
|
break;
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
|
|
const char *url, u8 osu_method)
|
|
{
|
|
if (url)
|
|
wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
|
|
osu_method, url);
|
|
else
|
|
wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
|
|
}
|
|
|
|
|
|
void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
|
|
u16 reauth_delay, const char *url)
|
|
{
|
|
if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
|
|
wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
|
|
return;
|
|
}
|
|
|
|
wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
|
|
code, reauth_delay, url);
|
|
|
|
if (code == HS20_DEAUTH_REASON_CODE_BSS) {
|
|
wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
|
|
wpa_blacklist_add(wpa_s, wpa_s->bssid);
|
|
}
|
|
|
|
if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
|
|
struct os_time now;
|
|
os_get_time(&now);
|
|
if (now.sec + reauth_delay <=
|
|
wpa_s->current_ssid->disabled_until.sec)
|
|
return;
|
|
wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
|
|
reauth_delay);
|
|
wpa_s->current_ssid->disabled_until.sec =
|
|
now.sec + reauth_delay;
|
|
}
|
|
}
|