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hostapd/src/ap/sta_info.c
Rameshkumar Sundaram 3ea7cf11db AP MLD: Enhance authenticator state machine 
Add required ML specific members in struct wpa_authenticator and struct
wpa_state_machine to maintain self and partner link information.

Maintain state machine object in all associated link stations and
destroy/remove references from the same whenever link stations are
getting removed.

Increase the wpa_group object reference count for all links in which ML
station is getting associated and release the same whenever link
stations are getting removed.

Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
2024-04-20 18:31:11 +03:00

1880 lines
50 KiB
C
Raw Blame History

/*
* hostapd / Station table
* Copyright (c) 2002-2017, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
#include "common/sae.h"
#include "common/dpp.h"
#include "radius/radius.h"
#include "radius/radius_client.h"
#include "p2p/p2p.h"
#include "fst/fst.h"
#include "crypto/crypto.h"
#include "hostapd.h"
#include "accounting.h"
#include "ieee802_1x.h"
#include "ieee802_11.h"
#include "ieee802_11_auth.h"
#include "wpa_auth.h"
#include "preauth_auth.h"
#include "ap_config.h"
#include "beacon.h"
#include "ap_mlme.h"
#include "vlan_init.h"
#include "p2p_hostapd.h"
#include "ap_drv_ops.h"
#include "gas_serv.h"
#include "wnm_ap.h"
#include "mbo_ap.h"
#include "ndisc_snoop.h"
#include "sta_info.h"
#include "vlan.h"
#include "wps_hostapd.h"
static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
struct sta_info *sta);
static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
static void ap_sta_delayed_1x_auth_fail_cb(void *eloop_ctx, void *timeout_ctx);
int ap_for_each_sta(struct hostapd_data *hapd,
int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
void *ctx),
void *ctx)
{
struct sta_info *sta;
for (sta = hapd->sta_list; sta; sta = sta->next) {
if (cb(hapd, sta, ctx))
return 1;
}
return 0;
}
struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
{
struct sta_info *s;
s = hapd->sta_hash[STA_HASH(sta)];
while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
s = s->hnext;
return s;
}
#ifdef CONFIG_P2P
struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta;
for (sta = hapd->sta_list; sta; sta = sta->next) {
const u8 *p2p_dev_addr;
if (sta->p2p_ie == NULL)
continue;
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
if (p2p_dev_addr == NULL)
continue;
if (ether_addr_equal(p2p_dev_addr, addr))
return sta;
}
return NULL;
}
#endif /* CONFIG_P2P */
static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
{
struct sta_info *tmp;
if (hapd->sta_list == sta) {
hapd->sta_list = sta->next;
return;
}
tmp = hapd->sta_list;
while (tmp != NULL && tmp->next != sta)
tmp = tmp->next;
if (tmp == NULL) {
wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
"list.", MAC2STR(sta->addr));
} else
tmp->next = sta->next;
}
void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
{
sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
hapd->sta_hash[STA_HASH(sta->addr)] = sta;
}
static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
{
struct sta_info *s;
s = hapd->sta_hash[STA_HASH(sta->addr)];
if (s == NULL) return;
if (os_memcmp(s->addr, sta->addr, 6) == 0) {
hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
return;
}
while (s->hnext != NULL &&
!ether_addr_equal(s->hnext->addr, sta->addr))
s = s->hnext;
if (s->hnext != NULL)
s->hnext = s->hnext->hnext;
else
wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
" from hash table", MAC2STR(sta->addr));
}
void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta)
{
sta_ip6addr_del(hapd, sta);
}
#ifdef CONFIG_PASN
void ap_free_sta_pasn(struct hostapd_data *hapd, struct sta_info *sta)
{
if (sta->pasn) {
wpa_printf(MSG_DEBUG, "PASN: Free PASN context: " MACSTR,
MAC2STR(sta->addr));
if (sta->pasn->ecdh)
crypto_ecdh_deinit(sta->pasn->ecdh);
wpabuf_free(sta->pasn->secret);
sta->pasn->secret = NULL;
#ifdef CONFIG_SAE
sae_clear_data(&sta->pasn->sae);
#endif /* CONFIG_SAE */
#ifdef CONFIG_FILS
/* In practice this pointer should be NULL */
wpabuf_free(sta->pasn->fils.erp_resp);
sta->pasn->fils.erp_resp = NULL;
#endif /* CONFIG_FILS */
pasn_data_deinit(sta->pasn);
sta->pasn = NULL;
}
}
#endif /* CONFIG_PASN */
static void __ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
#ifdef CONFIG_IEEE80211BE
if (hostapd_sta_is_link_sta(hapd, sta) &&
!hostapd_drv_link_sta_remove(hapd, sta->addr))
return;
#endif /* CONFIG_IEEE80211BE */
hostapd_drv_sta_remove(hapd, sta->addr);
}
#ifdef CONFIG_IEEE80211BE
static void clear_wpa_sm_for_each_partner_link(struct hostapd_data *hapd,
struct sta_info *psta)
{
struct sta_info *lsta;
struct hostapd_data *lhapd;
if (!ap_sta_is_mld(hapd, psta))
return;
for_each_mld_link(lhapd, hapd) {
if (lhapd == hapd)
continue;
lsta = ap_get_sta(lhapd, psta->addr);
if (lsta)
lsta->wpa_sm = NULL;
}
}
#endif /* CONFIG_IEEE80211BE */
void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
{
int set_beacon = 0;
accounting_sta_stop(hapd, sta);
/* just in case */
ap_sta_set_authorized(hapd, sta, 0);
hostapd_set_sta_flags(hapd, sta);
if ((sta->flags & WLAN_STA_WDS) ||
(sta->flags & WLAN_STA_MULTI_AP &&
(hapd->conf->multi_ap & BACKHAUL_BSS) &&
!(sta->flags & WLAN_STA_WPS)))
hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
if (sta->ipaddr)
hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
ap_sta_ip6addr_del(hapd, sta);
if (!hapd->iface->driver_ap_teardown &&
!(sta->flags & WLAN_STA_PREAUTH)) {
__ap_free_sta(hapd, sta);
sta->added_unassoc = 0;
}
ap_sta_hash_del(hapd, sta);
ap_sta_list_del(hapd, sta);
if (sta->aid > 0)
hapd->sta_aid[(sta->aid - 1) / 32] &=
~BIT((sta->aid - 1) % 32);
hapd->num_sta--;
if (sta->nonerp_set) {
sta->nonerp_set = 0;
hapd->iface->num_sta_non_erp--;
if (hapd->iface->num_sta_non_erp == 0)
set_beacon++;
}
if (sta->no_short_slot_time_set) {
sta->no_short_slot_time_set = 0;
hapd->iface->num_sta_no_short_slot_time--;
if (hapd->iface->current_mode &&
hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
&& hapd->iface->num_sta_no_short_slot_time == 0)
set_beacon++;
}
if (sta->no_short_preamble_set) {
sta->no_short_preamble_set = 0;
hapd->iface->num_sta_no_short_preamble--;
if (hapd->iface->current_mode &&
hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
&& hapd->iface->num_sta_no_short_preamble == 0)
set_beacon++;
}
if (sta->no_ht_gf_set) {
sta->no_ht_gf_set = 0;
hapd->iface->num_sta_ht_no_gf--;
}
if (sta->no_ht_set) {
sta->no_ht_set = 0;
hapd->iface->num_sta_no_ht--;
}
if (sta->ht_20mhz_set) {
sta->ht_20mhz_set = 0;
hapd->iface->num_sta_ht_20mhz--;
}
#ifdef CONFIG_TAXONOMY
wpabuf_free(sta->probe_ie_taxonomy);
sta->probe_ie_taxonomy = NULL;
wpabuf_free(sta->assoc_ie_taxonomy);
sta->assoc_ie_taxonomy = NULL;
#endif /* CONFIG_TAXONOMY */
ht40_intolerant_remove(hapd->iface, sta);
#ifdef CONFIG_P2P
if (sta->no_p2p_set) {
sta->no_p2p_set = 0;
hapd->num_sta_no_p2p--;
if (hapd->num_sta_no_p2p == 0)
hostapd_p2p_non_p2p_sta_disconnected(hapd);
}
#endif /* CONFIG_P2P */
#ifdef NEED_AP_MLME
if (hostapd_ht_operation_update(hapd->iface) > 0)
set_beacon++;
#endif /* NEED_AP_MLME */
#ifdef CONFIG_MESH
if (hapd->mesh_sta_free_cb)
hapd->mesh_sta_free_cb(hapd, sta);
#endif /* CONFIG_MESH */
if (set_beacon)
ieee802_11_update_beacons(hapd->iface);
wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
__func__, MAC2STR(sta->addr));
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
ap_sta_clear_disconnect_timeouts(hapd, sta);
sae_clear_retransmit_timer(hapd, sta);
ieee802_1x_free_station(hapd, sta);
#ifdef CONFIG_IEEE80211BE
if (!ap_sta_is_mld(hapd, sta) ||
hapd->mld_link_id == sta->mld_assoc_link_id) {
wpa_auth_sta_deinit(sta->wpa_sm);
/* Remove references from partner links. */
clear_wpa_sm_for_each_partner_link(hapd, sta);
}
/* Release group references in case non-association link STA is removed
* before association link STA */
if (hostapd_sta_is_link_sta(hapd, sta))
wpa_release_link_auth_ref(sta->wpa_sm, hapd->mld_link_id);
#else /* CONFIG_IEEE80211BE */
wpa_auth_sta_deinit(sta->wpa_sm);
#endif /* CONFIG_IEEE80211BE */
rsn_preauth_free_station(hapd, sta);
#ifndef CONFIG_NO_RADIUS
if (hapd->radius)
radius_client_flush_auth(hapd->radius, sta->addr);
#endif /* CONFIG_NO_RADIUS */
#ifndef CONFIG_NO_VLAN
/*
* sta->wpa_sm->group needs to be released before so that
* vlan_remove_dynamic() can check that no stations are left on the
* AP_VLAN netdev.
*/
if (sta->vlan_id)
vlan_remove_dynamic(hapd, sta->vlan_id);
if (sta->vlan_id_bound) {
/*
* Need to remove the STA entry before potentially removing the
* VLAN.
*/
if (hapd->iface->driver_ap_teardown &&
!(sta->flags & WLAN_STA_PREAUTH)) {
hostapd_drv_sta_remove(hapd, sta->addr);
sta->added_unassoc = 0;
}
vlan_remove_dynamic(hapd, sta->vlan_id_bound);
}
#endif /* CONFIG_NO_VLAN */
os_free(sta->challenge);
os_free(sta->sa_query_trans_id);
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
#ifdef CONFIG_P2P
p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
#endif /* CONFIG_P2P */
#ifdef CONFIG_INTERWORKING
if (sta->gas_dialog) {
int i;
for (i = 0; i < GAS_DIALOG_MAX; i++)
gas_serv_dialog_clear(&sta->gas_dialog[i]);
os_free(sta->gas_dialog);
}
#endif /* CONFIG_INTERWORKING */
wpabuf_free(sta->wps_ie);
wpabuf_free(sta->p2p_ie);
wpabuf_free(sta->hs20_ie);
wpabuf_free(sta->roaming_consortium);
#ifdef CONFIG_FST
wpabuf_free(sta->mb_ies);
#endif /* CONFIG_FST */
os_free(sta->ht_capabilities);
os_free(sta->vht_capabilities);
os_free(sta->vht_operation);
os_free(sta->he_capab);
os_free(sta->he_6ghz_capab);
os_free(sta->eht_capab);
hostapd_free_psk_list(sta->psk);
os_free(sta->identity);
os_free(sta->radius_cui);
os_free(sta->remediation_url);
os_free(sta->t_c_url);
wpabuf_free(sta->hs20_deauth_req);
os_free(sta->hs20_session_info_url);
#ifdef CONFIG_SAE
sae_clear_data(sta->sae);
os_free(sta->sae);
#endif /* CONFIG_SAE */
mbo_ap_sta_free(sta);
os_free(sta->supp_op_classes);
#ifdef CONFIG_FILS
os_free(sta->fils_pending_assoc_req);
wpabuf_free(sta->fils_hlp_resp);
wpabuf_free(sta->hlp_dhcp_discover);
eloop_cancel_timeout(fils_hlp_timeout, hapd, sta);
#ifdef CONFIG_FILS_SK_PFS
crypto_ecdh_deinit(sta->fils_ecdh);
wpabuf_clear_free(sta->fils_dh_ss);
wpabuf_free(sta->fils_g_sta);
#endif /* CONFIG_FILS_SK_PFS */
#endif /* CONFIG_FILS */
#ifdef CONFIG_OWE
bin_clear_free(sta->owe_pmk, sta->owe_pmk_len);
crypto_ecdh_deinit(sta->owe_ecdh);
#endif /* CONFIG_OWE */
#ifdef CONFIG_DPP2
dpp_pfs_free(sta->dpp_pfs);
sta->dpp_pfs = NULL;
#endif /* CONFIG_DPP2 */
os_free(sta->ext_capability);
#ifdef CONFIG_WNM_AP
eloop_cancel_timeout(ap_sta_reset_steer_flag_timer, hapd, sta);
#endif /* CONFIG_WNM_AP */
#ifdef CONFIG_PASN
ap_free_sta_pasn(hapd, sta);
#endif /* CONFIG_PASN */
os_free(sta->ifname_wds);
#ifdef CONFIG_IEEE80211BE
ap_sta_free_sta_profile(&sta->mld_info);
#endif /* CONFIG_IEEE80211BE */
#ifdef CONFIG_TESTING_OPTIONS
os_free(sta->sae_postponed_commit);
forced_memzero(sta->last_tk, WPA_TK_MAX_LEN);
#endif /* CONFIG_TESTING_OPTIONS */
os_free(sta);
}
void hostapd_free_stas(struct hostapd_data *hapd)
{
struct sta_info *sta, *prev;
sta = hapd->sta_list;
while (sta) {
prev = sta;
if (sta->flags & WLAN_STA_AUTH) {
mlme_deauthenticate_indication(
hapd, sta, WLAN_REASON_UNSPECIFIED);
}
sta = sta->next;
wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
MAC2STR(prev->addr));
ap_free_sta(hapd, prev);
}
}
#ifdef CONFIG_IEEE80211BE
void hostapd_free_link_stas(struct hostapd_data *hapd)
{
struct sta_info *sta, *prev;
sta = hapd->sta_list;
while (sta) {
prev = sta;
sta = sta->next;
if (!hostapd_sta_is_link_sta(hapd, prev))
continue;
wpa_printf(MSG_DEBUG, "Removing link station from MLD " MACSTR,
MAC2STR(prev->addr));
ap_free_sta(hapd, prev);
}
}
#endif /* CONFIG_IEEE80211BE */
/**
* ap_handle_timer - Per STA timer handler
* @eloop_ctx: struct hostapd_data *
* @timeout_ctx: struct sta_info *
*
* This function is called to check station activity and to remove inactive
* stations.
*/
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
int reason;
wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
sta->timeout_next);
if (sta->timeout_next == STA_REMOVE) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"local deauth request");
ap_free_sta(hapd, sta);
return;
}
if ((sta->flags & WLAN_STA_ASSOC) &&
(sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC)) {
int inactive_sec;
/*
* Add random value to timeout so that we don't end up bouncing
* all stations at the same time if we have lots of associated
* stations that are idle (but keep re-associating).
*/
int fuzz = os_random() % 20;
inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Check inactivity: Could not "
"get station info from kernel driver for "
MACSTR, MAC2STR(sta->addr));
/*
* The driver may not support this functionality.
* Anyway, try again after the next inactivity timeout,
* but do not disconnect the station now.
*/
next_time = hapd->conf->ap_max_inactivity + fuzz;
} else if (inactive_sec == -ENOENT) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has lost its driver entry",
MAC2STR(sta->addr));
/* Avoid sending client probe on removed client */
sta->timeout_next = STA_DISASSOC;
goto skip_poll;
} else if (inactive_sec < hapd->conf->ap_max_inactivity) {
/* station activity detected; reset timeout state */
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been active %is ago",
MAC2STR(sta->addr), inactive_sec);
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity + fuzz -
inactive_sec;
} else {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been "
"inactive too long: %d sec, max allowed: %d",
MAC2STR(sta->addr), inactive_sec,
hapd->conf->ap_max_inactivity);
if (hapd->conf->skip_inactivity_poll)
sta->timeout_next = STA_DISASSOC;
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL) &&
!hapd->conf->skip_inactivity_poll) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
" has ACKed data poll", MAC2STR(sta->addr));
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity;
}
skip_poll:
if (next_time) {
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%lu seconds)",
__func__, MAC2STR(sta->addr), next_time);
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG, " Polling STA");
sta->flags |= WLAN_STA_PENDING_POLL;
hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
sta->flags & WLAN_STA_WMM);
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
if (!deauth && !(sta->flags & WLAN_STA_ASSOC)) {
/* Cannot disassociate not-associated STA, so move
* directly to deauthentication. */
sta->timeout_next = STA_DEAUTH;
deauth = 1;
}
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"Timeout, sending %s info to STA " MACSTR,
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_drv_sta_deauth(
hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
reason = (sta->timeout_next == STA_DISASSOC) ?
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
WLAN_REASON_PREV_AUTH_NOT_VALID;
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
__func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
case STA_DISASSOC_FROM_CLI:
ap_sta_set_authorized(hapd, sta, 0);
sta->flags &= ~WLAN_STA_ASSOC;
hostapd_set_sta_flags(hapd, sta);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated due to "
"inactivity");
reason = (sta->timeout_next == STA_DISASSOC) ?
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
WLAN_REASON_PREV_AUTH_NOT_VALID;
sta->timeout_next = STA_DEAUTH;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
__func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
mlme_disassociate_indication(hapd, sta, reason);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity (timer DEAUTH/REMOVE)");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
mlme_deauthenticate_indication(
hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
ap_free_sta(hapd, sta);
break;
}
}
static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
if (!(sta->flags & (WLAN_STA_AUTH | WLAN_STA_ASSOC |
WLAN_STA_AUTHORIZED))) {
if (sta->flags & WLAN_STA_GAS) {
wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
"entry " MACSTR, MAC2STR(sta->addr));
ap_free_sta(hapd, sta);
}
return;
}
hostapd_drv_sta_deauth(hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
mlme_deauthenticate_indication(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"session timeout");
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
ap_free_sta(hapd, sta);
}
void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
u32 session_timeout)
{
if (eloop_replenish_timeout(session_timeout, 0,
ap_handle_session_timer, hapd, sta) == 1) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "setting session timeout "
"to %d seconds", session_timeout);
}
}
void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
u32 session_timeout)
{
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
"seconds", session_timeout);
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
hapd, sta);
}
void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
{
eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
}
static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
{
#ifdef CONFIG_WNM_AP
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
if (sta->hs20_session_info_url == NULL)
return;
wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
sta->hs20_disassoc_timer);
#endif /* CONFIG_WNM_AP */
}
void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
struct sta_info *sta, int warning_time)
{
eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
hapd, sta);
}
struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
{
struct sta_info *sta;
int i;
sta = ap_get_sta(hapd, addr);
if (sta)
return sta;
wpa_printf(MSG_DEBUG, " New STA");
if (hapd->num_sta >= hapd->conf->max_num_sta) {
/* FIX: might try to remove some old STAs first? */
wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
hapd->num_sta, hapd->conf->max_num_sta);
return NULL;
}
sta = os_zalloc(sizeof(struct sta_info));
if (sta == NULL) {
wpa_printf(MSG_ERROR, "malloc failed");
return NULL;
}
sta->acct_interim_interval = hapd->conf->acct_interim_interval;
if (accounting_sta_get_id(hapd, sta) < 0) {
os_free(sta);
return NULL;
}
for (i = 0; i < WLAN_SUPP_RATES_MAX; i++) {
if (!hapd->iface->basic_rates)
break;
if (hapd->iface->basic_rates[i] < 0)
break;
sta->supported_rates[i] = hapd->iface->basic_rates[i] / 5;
}
sta->supported_rates_len = i;
if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - ap_max_inactivity)",
__func__, MAC2STR(addr),
hapd->conf->ap_max_inactivity);
eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
ap_handle_timer, hapd, sta);
}
/* initialize STA info data */
os_memcpy(sta->addr, addr, ETH_ALEN);
sta->next = hapd->sta_list;
hapd->sta_list = sta;
hapd->num_sta++;
ap_sta_hash_add(hapd, sta);
ap_sta_remove_in_other_bss(hapd, sta);
sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
dl_list_init(&sta->ip6addr);
#ifdef CONFIG_TAXONOMY
sta_track_claim_taxonomy_info(hapd->iface, addr,
&sta->probe_ie_taxonomy);
#endif /* CONFIG_TAXONOMY */
return sta;
}
static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
{
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
if (sta->ipaddr)
hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
ap_sta_ip6addr_del(hapd, sta);
wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
hapd->conf->iface, MAC2STR(sta->addr));
if (hostapd_drv_sta_remove(hapd, sta->addr) &&
sta->flags & WLAN_STA_ASSOC) {
wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
" from kernel driver",
hapd->conf->iface, MAC2STR(sta->addr));
return -1;
}
sta->added_unassoc = 0;
return 0;
}
static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
struct sta_info *sta)
{
struct hostapd_iface *iface = hapd->iface;
size_t i;
for (i = 0; i < iface->num_bss; i++) {
struct hostapd_data *bss = iface->bss[i];
struct sta_info *sta2;
/* bss should always be set during operation, but it may be
* NULL during reconfiguration. Assume the STA is not
* associated to another BSS in that case to avoid NULL pointer
* dereferences. */
if (bss == hapd || bss == NULL)
continue;
sta2 = ap_get_sta(bss, sta->addr);
if (!sta2)
continue;
wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
" association from another BSS %s",
hapd->conf->iface, MAC2STR(sta2->addr),
bss->conf->iface);
ap_sta_disconnect(bss, sta2, sta2->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
}
}
static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
ap_sta_remove(hapd, sta);
mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
}
static void ap_sta_disconnect_common(struct hostapd_data *hapd,
struct sta_info *sta, unsigned int timeout)
{
sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
ap_sta_set_authorized(hapd, sta, 0);
hostapd_set_sta_flags(hapd, sta);
wpa_printf(MSG_DEBUG,
"reschedule ap_handle_timer timeout (%u sec) for " MACSTR,
MAC2STR(sta->addr), timeout);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(timeout, 0, ap_handle_timer, hapd, sta);
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(hapd, sta);
#ifdef CONFIG_IEEE80211BE
if (!hapd->conf->mld_ap ||
hapd->mld_link_id == sta->mld_assoc_link_id) {
wpa_auth_sta_deinit(sta->wpa_sm);
clear_wpa_sm_for_each_partner_link(hapd, sta);
}
#else /* CONFIG_IEEE80211BE */
wpa_auth_sta_deinit(sta->wpa_sm);
#endif /* CONFIG_IEEE80211BE */
sta->wpa_sm = NULL;
}
static void ap_sta_handle_disassociate(struct hostapd_data *hapd,
struct sta_info *sta, u16 reason)
{
wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
if (hapd->iface->current_mode &&
hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) {
/* Skip deauthentication in DMG/IEEE 802.11ad */
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC |
WLAN_STA_ASSOC_REQ_OK);
sta->timeout_next = STA_REMOVE;
} else {
sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
sta->timeout_next = STA_DEAUTH;
}
ap_sta_disconnect_common(hapd, sta, AP_MAX_INACTIVITY_AFTER_DISASSOC);
sta->disassoc_reason = reason;
sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_disassoc_cb_timeout, hapd, sta);
}
static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
ap_sta_remove(hapd, sta);
mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
}
static void ap_sta_handle_deauthenticate(struct hostapd_data *hapd,
struct sta_info *sta, u16 reason)
{
if (hapd->iface->current_mode &&
hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) {
/* Deauthentication is not used in DMG/IEEE 802.11ad;
* disassociate the STA instead. */
ap_sta_disassociate(hapd, sta, reason);
return;
}
wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
sta->timeout_next = STA_REMOVE;
ap_sta_disconnect_common(hapd, sta, AP_MAX_INACTIVITY_AFTER_DEAUTH);
sta->deauth_reason = reason;
sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_deauth_cb_timeout, hapd, sta);
}
static bool ap_sta_ml_disconnect(struct hostapd_data *hapd,
struct sta_info *sta, u16 reason,
bool disassoc)
{
#ifdef CONFIG_IEEE80211BE
struct hostapd_data *assoc_hapd, *tmp_hapd;
struct sta_info *assoc_sta;
unsigned int i, link_id;
struct hapd_interfaces *interfaces;
if (!hostapd_is_mld_ap(hapd))
return false;
/*
* Get the station on which the association was performed, as it holds
* the information about all the other links.
*/
assoc_sta = hostapd_ml_get_assoc_sta(hapd, sta, &assoc_hapd);
if (!assoc_sta)
return false;
interfaces = assoc_hapd->iface->interfaces;
for (link_id = 0; link_id < MAX_NUM_MLD_LINKS; link_id++) {
if (!assoc_sta->mld_info.links[link_id].valid)
continue;
for (i = 0; i < interfaces->count; i++) {
struct sta_info *tmp_sta;
tmp_hapd = interfaces->iface[i]->bss[0];
if (!hostapd_is_ml_partner(tmp_hapd, assoc_hapd))
continue;
for (tmp_sta = tmp_hapd->sta_list; tmp_sta;
tmp_sta = tmp_sta->next) {
/*
* Handle the station on which the association
* was done only after all other link station
* are removed. Since there is a only a single
* station per hapd with the same association
* link simply break;
*/
if (tmp_sta == assoc_sta)
break;
if (tmp_sta->mld_assoc_link_id !=
assoc_sta->mld_assoc_link_id ||
tmp_sta->aid != assoc_sta->aid)
continue;
if (disassoc)
ap_sta_handle_disassociate(tmp_hapd,
tmp_sta,
reason);
else
ap_sta_handle_deauthenticate(tmp_hapd,
tmp_sta,
reason);
break;
}
}
}
/* Disconnect the station on which the association was performed. */
if (disassoc)
ap_sta_handle_disassociate(assoc_hapd, assoc_sta, reason);
else
ap_sta_handle_deauthenticate(assoc_hapd, assoc_sta, reason);
return true;
#else /* CONFIG_IEEE80211BE */
return false;
#endif /* CONFIG_IEEE80211BE */
}
void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
u16 reason)
{
if (ap_sta_ml_disconnect(hapd, sta, reason, true))
return;
ap_sta_handle_disassociate(hapd, sta, reason);
}
void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
u16 reason)
{
if (ap_sta_ml_disconnect(hapd, sta, reason, false))
return;
ap_sta_handle_deauthenticate(hapd, sta, reason);
}
#ifdef CONFIG_WPS
int ap_sta_wps_cancel(struct hostapd_data *hapd,
struct sta_info *sta, void *ctx)
{
if (sta && (sta->flags & WLAN_STA_WPS)) {
ap_sta_deauthenticate(hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
__func__, MAC2STR(sta->addr));
return 1;
}
return 0;
}
#endif /* CONFIG_WPS */
static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
{
struct hostapd_vlan *vlan;
int vlan_id = MAX_VLAN_ID + 2;
retry:
for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
if (vlan->vlan_id == vlan_id) {
vlan_id++;
goto retry;
}
}
return vlan_id;
}
int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
struct vlan_description *vlan_desc)
{
struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
int old_vlan_id, vlan_id = 0, ret = 0;
/* Check if there is something to do */
if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
/* This sta is lacking its own vif */
} else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
!hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
/* sta->vlan_id needs to be reset */
} else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
return 0; /* nothing to change */
}
/* Now the real VLAN changed or the STA just needs its own vif */
if (hapd->conf->ssid.per_sta_vif) {
/* Assign a new vif, always */
/* find a free vlan_id sufficiently big */
vlan_id = ap_sta_get_free_vlan_id(hapd);
/* Get wildcard VLAN */
for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
if (vlan->vlan_id == VLAN_ID_WILDCARD)
break;
}
if (!vlan) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"per_sta_vif missing wildcard");
vlan_id = 0;
ret = -1;
goto done;
}
} else if (vlan_desc && vlan_desc->notempty) {
for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
break;
if (vlan->vlan_id == VLAN_ID_WILDCARD)
wildcard_vlan = vlan;
}
if (vlan) {
vlan_id = vlan->vlan_id;
} else if (wildcard_vlan) {
vlan = wildcard_vlan;
vlan_id = vlan_desc->untagged;
if (vlan_desc->tagged[0]) {
/* Tagged VLAN configuration */
vlan_id = ap_sta_get_free_vlan_id(hapd);
}
} else {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"missing vlan and wildcard for vlan=%d%s",
vlan_desc->untagged,
vlan_desc->tagged[0] ? "+" : "");
vlan_id = 0;
ret = -1;
goto done;
}
}
if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
if (vlan == NULL) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"could not add dynamic VLAN interface for vlan=%d%s",
vlan_desc ? vlan_desc->untagged : -1,
(vlan_desc && vlan_desc->tagged[0]) ?
"+" : "");
vlan_id = 0;
ret = -1;
goto done;
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"added new dynamic VLAN interface '%s'",
vlan->ifname);
} else if (vlan && vlan->dynamic_vlan > 0) {
vlan->dynamic_vlan++;
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"updated existing dynamic VLAN interface '%s'",
vlan->ifname);
}
done:
old_vlan_id = sta->vlan_id;
sta->vlan_id = vlan_id;
sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
if (vlan_id != old_vlan_id && old_vlan_id)
vlan_remove_dynamic(hapd, old_vlan_id);
return ret;
}
int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
{
#ifndef CONFIG_NO_VLAN
const char *iface;
struct hostapd_vlan *vlan = NULL;
int ret;
int old_vlanid = sta->vlan_id_bound;
int mld_link_id = -1;
#ifdef CONFIG_IEEE80211BE
if (hapd->conf->mld_ap)
mld_link_id = hapd->mld_link_id;
#endif /* CONFIG_IEEE80211BE */
if ((sta->flags & WLAN_STA_WDS) && sta->vlan_id == 0) {
wpa_printf(MSG_DEBUG,
"Do not override WDS VLAN assignment for STA "
MACSTR, MAC2STR(sta->addr));
return 0;
}
iface = hapd->conf->iface;
if (hapd->conf->ssid.vlan[0])
iface = hapd->conf->ssid.vlan;
if (sta->vlan_id > 0) {
for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
if (vlan->vlan_id == sta->vlan_id)
break;
}
if (vlan)
iface = vlan->ifname;
}
/*
* Do not increment ref counters if the VLAN ID remains same, but do
* not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
* have been called before.
*/
if (sta->vlan_id == old_vlanid)
goto skip_counting;
if (sta->vlan_id > 0 && !vlan &&
!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD)) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
"binding station to (vlan_id=%d)",
sta->vlan_id);
ret = -1;
goto done;
} else if (vlan && vlan->dynamic_vlan > 0) {
vlan->dynamic_vlan++;
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"updated existing dynamic VLAN interface '%s'",
iface);
}
/* ref counters have been increased, so mark the station */
sta->vlan_id_bound = sta->vlan_id;
skip_counting:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "binding station to interface "
"'%s'", iface);
if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id,
mld_link_id);
if (ret < 0) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
"entry to vlan_id=%d", sta->vlan_id);
}
/* During 1x reauth, if the vlan id changes, then remove the old id. */
if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
vlan_remove_dynamic(hapd, old_vlanid);
done:
return ret;
#else /* CONFIG_NO_VLAN */
return 0;
#endif /* CONFIG_NO_VLAN */
}
int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
{
u32 tu;
struct os_reltime now, passed;
os_get_reltime(&now);
os_reltime_sub(&now, &sta->sa_query_start, &passed);
tu = (passed.sec * 1000000 + passed.usec) / 1024;
if (hapd->conf->assoc_sa_query_max_timeout < tu) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"association SA Query timed out");
sta->sa_query_timed_out = 1;
os_free(sta->sa_query_trans_id);
sta->sa_query_trans_id = NULL;
sta->sa_query_count = 0;
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
return 1;
}
return 0;
}
static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned int timeout, sec, usec;
u8 *trans_id, *nbuf;
wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
" (count=%d)",
hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
if (sta->sa_query_count > 0 &&
ap_check_sa_query_timeout(hapd, sta))
return;
if (sta->sa_query_count >= 1000)
return;
nbuf = os_realloc_array(sta->sa_query_trans_id,
sta->sa_query_count + 1,
WLAN_SA_QUERY_TR_ID_LEN);
if (nbuf == NULL)
return;
if (sta->sa_query_count == 0) {
/* Starting a new SA Query procedure */
os_get_reltime(&sta->sa_query_start);
}
trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
sta->sa_query_trans_id = nbuf;
sta->sa_query_count++;
if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
/*
* We don't really care which ID is used here, so simply
* hardcode this if the mostly theoretical os_get_random()
* failure happens.
*/
trans_id[0] = 0x12;
trans_id[1] = 0x34;
}
timeout = hapd->conf->assoc_sa_query_retry_timeout;
sec = ((timeout / 1000) * 1024) / 1000;
usec = (timeout % 1000) * 1024;
eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"association SA Query attempt %d", sta->sa_query_count);
ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
}
void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
{
ap_sa_query_timer(hapd, sta);
}
void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
{
eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
os_free(sta->sa_query_trans_id);
sta->sa_query_trans_id = NULL;
sta->sa_query_count = 0;
}
const char * ap_sta_wpa_get_keyid(struct hostapd_data *hapd,
struct sta_info *sta)
{
struct hostapd_wpa_psk *psk;
struct hostapd_ssid *ssid;
const u8 *pmk;
int pmk_len;
ssid = &hapd->conf->ssid;
pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len);
if (!pmk || pmk_len != PMK_LEN)
return NULL;
for (psk = ssid->wpa_psk; psk; psk = psk->next)
if (os_memcmp(pmk, psk->psk, PMK_LEN) == 0)
break;
if (!psk || !psk->keyid[0])
return NULL;
return psk->keyid;
}
const u8 * ap_sta_wpa_get_dpp_pkhash(struct hostapd_data *hapd,
struct sta_info *sta)
{
return wpa_auth_get_dpp_pkhash(sta->wpa_sm);
}
bool ap_sta_set_authorized_flag(struct hostapd_data *hapd, struct sta_info *sta,
int authorized)
{
if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
return false;
if (authorized) {
int mld_assoc_link_id = -1;
#ifdef CONFIG_IEEE80211BE
if (ap_sta_is_mld(hapd, sta)) {
if (sta->mld_assoc_link_id == hapd->mld_link_id)
mld_assoc_link_id = sta->mld_assoc_link_id;
else
mld_assoc_link_id = -2;
}
#endif /* CONFIG_IEEE80211BE */
if (mld_assoc_link_id != -2)
hostapd_prune_associations(hapd, sta->addr,
mld_assoc_link_id);
sta->flags |= WLAN_STA_AUTHORIZED;
} else {
sta->flags &= ~WLAN_STA_AUTHORIZED;
}
return true;
}
void ap_sta_set_authorized_event(struct hostapd_data *hapd,
struct sta_info *sta, int authorized)
{
const u8 *dev_addr = NULL;
char buf[100];
#ifdef CONFIG_P2P
u8 addr[ETH_ALEN];
u8 ip_addr_buf[4];
#endif /* CONFIG_P2P */
const u8 *ip_ptr = NULL;
#ifdef CONFIG_P2P
if (hapd->p2p_group == NULL) {
if (sta->p2p_ie != NULL &&
p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
dev_addr = addr;
} else
dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
if (dev_addr)
os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
MAC2STR(sta->addr), MAC2STR(dev_addr));
else
#endif /* CONFIG_P2P */
os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
if (authorized) {
const u8 *dpp_pkhash;
const char *keyid;
char dpp_pkhash_buf[100];
char keyid_buf[100];
char ip_addr[100];
dpp_pkhash_buf[0] = '\0';
keyid_buf[0] = '\0';
ip_addr[0] = '\0';
#ifdef CONFIG_P2P
if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
os_snprintf(ip_addr, sizeof(ip_addr),
" ip_addr=%u.%u.%u.%u",
ip_addr_buf[0], ip_addr_buf[1],
ip_addr_buf[2], ip_addr_buf[3]);
ip_ptr = ip_addr_buf;
}
#endif /* CONFIG_P2P */
keyid = ap_sta_wpa_get_keyid(hapd, sta);
if (keyid) {
os_snprintf(keyid_buf, sizeof(keyid_buf),
" keyid=%s", keyid);
}
dpp_pkhash = ap_sta_wpa_get_dpp_pkhash(hapd, sta);
if (dpp_pkhash) {
const char *prefix = " dpp_pkhash=";
size_t plen = os_strlen(prefix);
os_strlcpy(dpp_pkhash_buf, prefix,
sizeof(dpp_pkhash_buf));
wpa_snprintf_hex(&dpp_pkhash_buf[plen],
sizeof(dpp_pkhash_buf) - plen,
dpp_pkhash, SHA256_MAC_LEN);
}
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s%s%s",
buf, ip_addr, keyid_buf, dpp_pkhash_buf);
if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx)
wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_CONNECTED "%s%s%s%s",
buf, ip_addr, keyid_buf,
dpp_pkhash_buf);
} else {
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
if (hapd->msg_ctx_parent &&
hapd->msg_ctx_parent != hapd->msg_ctx)
wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
AP_STA_DISCONNECTED "%s", buf);
}
if (hapd->sta_authorized_cb)
hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
sta->addr, authorized, dev_addr,
ip_ptr);
#ifdef CONFIG_FST
if (hapd->iface->fst) {
if (authorized)
fst_notify_peer_connected(hapd->iface->fst, sta->addr);
else
fst_notify_peer_disconnected(hapd->iface->fst,
sta->addr);
}
#endif /* CONFIG_FST */
}
void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
int authorized)
{
if (!ap_sta_set_authorized_flag(hapd, sta, authorized))
return;
ap_sta_set_authorized_event(hapd, sta, authorized);
}
void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *addr, u16 reason)
{
if (sta)
wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
hapd->conf->iface, __func__, MAC2STR(sta->addr),
reason);
else if (addr)
wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
hapd->conf->iface, __func__, MAC2STR(addr),
reason);
if (sta == NULL && addr)
sta = ap_get_sta(hapd, addr);
if (addr)
hostapd_drv_sta_deauth(hapd, addr, reason);
if (sta == NULL)
return;
ap_sta_set_authorized(hapd, sta, 0);
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
hostapd_set_sta_flags(hapd, sta);
wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
"for " MACSTR " (%d seconds - "
"AP_MAX_INACTIVITY_AFTER_DEAUTH)",
hapd->conf->iface, __func__, MAC2STR(sta->addr),
AP_MAX_INACTIVITY_AFTER_DEAUTH);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
ap_handle_timer, hapd, sta);
sta->timeout_next = STA_REMOVE;
if (hapd->iface->current_mode &&
hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211AD) {
/* Deauthentication is not used in DMG/IEEE 802.11ad;
* disassociate the STA instead. */
sta->disassoc_reason = reason;
sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ?
2 : 0, 0, ap_sta_disassoc_cb_timeout,
hapd, sta);
return;
}
sta->deauth_reason = reason;
sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
eloop_register_timeout(hapd->iface->drv_flags &
WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
ap_sta_deauth_cb_timeout, hapd, sta);
}
void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
{
if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
return;
}
sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
ap_sta_deauth_cb_timeout(hapd, sta);
}
void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
{
if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
return;
}
sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
ap_sta_disassoc_cb_timeout(hapd, sta);
}
void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
struct sta_info *sta)
{
if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
wpa_printf(MSG_DEBUG,
"%s: Removed ap_sta_deauth_cb_timeout timeout for "
MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
wpa_printf(MSG_DEBUG,
"%s: Removed ap_sta_disassoc_cb_timeout timeout for "
MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
if (eloop_cancel_timeout(ap_sta_delayed_1x_auth_fail_cb, hapd, sta) > 0)
{
wpa_printf(MSG_DEBUG,
"%s: Removed ap_sta_delayed_1x_auth_fail_cb timeout for "
MACSTR,
hapd->conf->iface, MAC2STR(sta->addr));
if (sta->flags & WLAN_STA_WPS)
hostapd_wps_eap_completed(hapd);
}
}
int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
{
int res;
buf[0] = '\0';
res = os_snprintf(buf, buflen,
"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
(flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
(flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
(flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
(flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
""),
(flags & WLAN_STA_SHORT_PREAMBLE ?
"[SHORT_PREAMBLE]" : ""),
(flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
(flags & WLAN_STA_WMM ? "[WMM]" : ""),
(flags & WLAN_STA_MFP ? "[MFP]" : ""),
(flags & WLAN_STA_WPS ? "[WPS]" : ""),
(flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
(flags & WLAN_STA_WDS ? "[WDS]" : ""),
(flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
(flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
(flags & WLAN_STA_GAS ? "[GAS]" : ""),
(flags & WLAN_STA_HT ? "[HT]" : ""),
(flags & WLAN_STA_VHT ? "[VHT]" : ""),
(flags & WLAN_STA_HE ? "[HE]" : ""),
(flags & WLAN_STA_EHT ? "[EHT]" : ""),
(flags & WLAN_STA_6GHZ ? "[6GHZ]" : ""),
(flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
(flags & WLAN_STA_WNM_SLEEP_MODE ?
"[WNM_SLEEP_MODE]" : ""));
if (os_snprintf_error(buflen, res))
res = -1;
return res;
}
static void ap_sta_delayed_1x_auth_fail_cb(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
u16 reason;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"IEEE 802.1X: Scheduled disconnection of " MACSTR
" after EAP-Failure", MAC2STR(sta->addr));
reason = sta->disconnect_reason_code;
if (!reason)
reason = WLAN_REASON_IEEE_802_1X_AUTH_FAILED;
ap_sta_disconnect(hapd, sta, sta->addr, reason);
if (sta->flags & WLAN_STA_WPS)
hostapd_wps_eap_completed(hapd);
}
void ap_sta_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
struct sta_info *sta,
unsigned timeout)
{
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"IEEE 802.1X: Force disconnection of " MACSTR
" after EAP-Failure in %u ms", MAC2STR(sta->addr), timeout);
/*
* Add a small sleep to increase likelihood of previously requested
* EAP-Failure TX getting out before this should the driver reorder
* operations.
*/
eloop_cancel_timeout(ap_sta_delayed_1x_auth_fail_cb, hapd, sta);
eloop_register_timeout(0, timeout * 1000,
ap_sta_delayed_1x_auth_fail_cb, hapd, sta);
}
int ap_sta_pending_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
struct sta_info *sta)
{
return eloop_is_timeout_registered(ap_sta_delayed_1x_auth_fail_cb,
hapd, sta);
}
#ifdef CONFIG_IEEE80211BE
static void ap_sta_remove_link_sta(struct hostapd_data *hapd,
struct sta_info *sta)
{
struct hostapd_data *tmp_hapd;
for_each_mld_link(tmp_hapd, hapd) {
struct sta_info *tmp_sta;
if (hapd == tmp_hapd)
continue;
for (tmp_sta = tmp_hapd->sta_list; tmp_sta;
tmp_sta = tmp_sta->next) {
if (tmp_sta == sta ||
!ether_addr_equal(tmp_sta->addr, sta->addr))
continue;
ap_free_sta(tmp_hapd, tmp_sta);
break;
}
}
}
#endif /* CONFIG_IEEE80211BE */
int ap_sta_re_add(struct hostapd_data *hapd, struct sta_info *sta)
{
const u8 *mld_link_addr = NULL;
bool mld_link_sta = false;
/*
* If a station that is already associated to the AP, is trying to
* authenticate again, remove the STA entry, in order to make sure the
* STA PS state gets cleared and configuration gets updated. To handle
* this, station's added_unassoc flag is cleared once the station has
* completed association.
*/
#ifdef CONFIG_IEEE80211BE
if (ap_sta_is_mld(hapd, sta)) {
u8 mld_link_id = hapd->mld_link_id;
mld_link_sta = sta->mld_assoc_link_id != mld_link_id;
mld_link_addr = sta->mld_info.links[mld_link_id].peer_addr;
/*
* In case the AP is affiliated with an AP MLD, we need to
* remove the station from all relevant links/APs.
*/
ap_sta_remove_link_sta(hapd, sta);
}
#endif /* CONFIG_IEEE80211BE */
ap_sta_set_authorized(hapd, sta, 0);
hostapd_drv_sta_remove(hapd, sta->addr);
sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_AUTH | WLAN_STA_AUTHORIZED);
if (hostapd_sta_add(hapd, sta->addr, 0, 0,
sta->supported_rates,
sta->supported_rates_len,
0, NULL, NULL, NULL, 0, NULL, 0, NULL,
sta->flags, 0, 0, 0, 0,
mld_link_addr, mld_link_sta)) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_NOTICE,
"Could not add STA to kernel driver");
return -1;
}
sta->added_unassoc = 1;
return 0;
}
#ifdef CONFIG_IEEE80211BE
void ap_sta_free_sta_profile(struct mld_info *info)
{
int i;
if (!info)
return;
for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
os_free(info->links[i].resp_sta_profile);
info->links[i].resp_sta_profile = NULL;
}
}
#endif /* CONFIG_IEEE80211BE */
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