/*
* WPA Supplicant - Glue code to setup EAPOL and RSN modules
* Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "eap_peer/eap.h"
#include "rsn_supp/wpa.h"
#include "eloop.h"
#include "config.h"
#include "l2_packet/l2_packet.h"
#include "common/wpa_common.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "rsn_supp/pmksa_cache.h"
#include "sme.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_ctrl.h"
#include "wpas_glue.h"
#include "wps_supplicant.h"
#include "bss.h"
#include "scan.h"
#include "notify.h"
#include "wpas_kay.h"
#ifndef CONFIG_NO_CONFIG_BLOBS
#if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
static void wpa_supplicant_set_config_blob(void *ctx,
struct wpa_config_blob *blob)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_config_set_blob(wpa_s->conf, blob);
if (wpa_s->conf->update_config) {
int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
if (ret) {
wpa_printf(MSG_DEBUG, "Failed to update config after "
"blob set");
}
}
}
static const struct wpa_config_blob *
wpa_supplicant_get_config_blob(void *ctx, const char *name)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_config_get_blob(wpa_s->conf, name);
}
#endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
#endif /* CONFIG_NO_CONFIG_BLOBS */
#if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
const void *data, u16 data_len,
size_t *msg_len, void **data_pos)
{
struct ieee802_1x_hdr *hdr;
*msg_len = sizeof(*hdr) + data_len;
hdr = os_malloc(*msg_len);
if (hdr == NULL)
return NULL;
hdr->version = wpa_s->conf->eapol_version;
hdr->type = type;
hdr->length = host_to_be16(data_len);
if (data)
os_memcpy(hdr + 1, data, data_len);
else
os_memset(hdr + 1, 0, data_len);
if (data_pos)
*data_pos = hdr + 1;
return (u8 *) hdr;
}
/**
* wpa_ether_send - Send Ethernet frame
* @wpa_s: Pointer to wpa_supplicant data
* @dest: Destination MAC address
* @proto: Ethertype in host byte order
* @buf: Frame payload starting from IEEE 802.1X header
* @len: Frame payload length
* Returns: >=0 on success, <0 on failure
*/
static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
u16 proto, const u8 *buf, size_t len)
{
#ifdef CONFIG_TESTING_OPTIONS
if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
size_t hex_len = 2 * len + 1;
char *hex = os_malloc(hex_len);
if (hex == NULL)
return -1;
wpa_snprintf_hex(hex, hex_len, buf, len);
wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s",
MAC2STR(dest), hex);
os_free(hex);
return 0;
}
#endif /* CONFIG_TESTING_OPTIONS */
if (wpa_s->l2) {
return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
}
return -1;
}
#endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
#ifdef IEEE8021X_EAPOL
/**
* wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
* @ctx: Pointer to wpa_supplicant data (wpa_s)
* @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
* @buf: EAPOL payload (after IEEE 802.1X header)
* @len: EAPOL payload length
* Returns: >=0 on success, <0 on failure
*
* This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
* to the current Authenticator.
*/
static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
size_t len)
{
struct wpa_supplicant *wpa_s = ctx;
u8 *msg, *dst, bssid[ETH_ALEN];
size_t msglen;
int res;
/* TODO: could add l2_packet_sendmsg that allows fragments to avoid
* extra copy here */
if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
/* Current SSID is not using IEEE 802.1X/EAP, so drop possible
* EAPOL frames (mainly, EAPOL-Start) from EAPOL state
* machines. */
wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
"mode (type=%d len=%lu)", type,
(unsigned long) len);
return -1;
}
if (pmksa_cache_get_current(wpa_s->wpa) &&
type == IEEE802_1X_TYPE_EAPOL_START) {
/*
* We were trying to use PMKSA caching and sending EAPOL-Start
* would abort that and trigger full EAPOL authentication.
* However, we've already waited for the AP/Authenticator to
* start 4-way handshake or EAP authentication, and apparently
* it has not done so since the startWhen timer has reached zero
* to get the state machine sending EAPOL-Start. This is not
* really supposed to happen, but an interoperability issue with
* a deployed AP has been identified where the connection fails
* due to that AP failing to operate correctly if PMKID is
* included in the Association Request frame. To work around
* this, assume PMKSA caching failed and try to initiate full
* EAP authentication.
*/
if (!wpa_s->current_ssid ||
wpa_s->current_ssid->eap_workaround) {
wpa_printf(MSG_DEBUG,
"RSN: Timeout on waiting for the AP to initiate 4-way handshake for PMKSA caching or EAP authentication - try to force it to start EAP authentication");
} else {
wpa_printf(MSG_DEBUG,
"RSN: PMKSA caching - do not send EAPOL-Start");
return -1;
}
}
if (is_zero_ether_addr(wpa_s->bssid)) {
wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
"EAPOL frame");
if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
!is_zero_ether_addr(bssid)) {
dst = bssid;
wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
" from the driver as the EAPOL destination",
MAC2STR(dst));
} else {
dst = wpa_s->last_eapol_src;
wpa_printf(MSG_DEBUG, "Using the source address of the"
" last received EAPOL frame " MACSTR " as "
"the EAPOL destination",
MAC2STR(dst));
}
} else {
/* BSSID was already set (from (Re)Assoc event, so use it as
* the EAPOL destination. */
dst = wpa_s->bssid;
}
msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
if (msg == NULL)
return -1;
wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
os_free(msg);
return res;
}
/**
* wpa_eapol_set_wep_key - set WEP key for the driver
* @ctx: Pointer to wpa_supplicant data (wpa_s)
* @unicast: 1 = individual unicast key, 0 = broadcast key
* @keyidx: WEP key index (0..3)
* @key: Pointer to key data
* @keylen: Key length in bytes
* Returns: 0 on success or < 0 on error.
*/
static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
const u8 *key, size_t keylen)
{
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
WPA_CIPHER_WEP104;
if (unicast)
wpa_s->pairwise_cipher = cipher;
else
wpa_s->group_cipher = cipher;
}
return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
unicast ? wpa_s->bssid : NULL,
keyidx, unicast, NULL, 0, key, keylen);
}
static void wpa_supplicant_aborted_cached(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_sm_aborted_cached(wpa_s->wpa);
}
static const char * result_str(enum eapol_supp_result result)
{
switch (result) {
case EAPOL_SUPP_RESULT_FAILURE:
return "FAILURE";
case EAPOL_SUPP_RESULT_SUCCESS:
return "SUCCESS";
case EAPOL_SUPP_RESULT_EXPECTED_FAILURE:
return "EXPECTED_FAILURE";
}
return "?";
}
static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol,
enum eapol_supp_result result,
void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
int res, pmk_len;
u8 pmk[PMK_LEN];
wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s",
result_str(result));
if (wpas_wps_eapol_cb(wpa_s) > 0)
return;
wpa_s->eap_expected_failure = result ==
EAPOL_SUPP_RESULT_EXPECTED_FAILURE;
if (result != EAPOL_SUPP_RESULT_SUCCESS) {
/*
* Make sure we do not get stuck here waiting for long EAPOL
* timeout if the AP does not disconnect in case of
* authentication failure.
*/
wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
} else {
ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
}
if (result != EAPOL_SUPP_RESULT_SUCCESS ||
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
return;
if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
return;
wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
"handshake");
pmk_len = PMK_LEN;
if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
#ifdef CONFIG_IEEE80211R
u8 buf[2 * PMK_LEN];
wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
"driver-based 4-way hs and FT");
res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
if (res == 0) {
os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
os_memset(buf, 0, sizeof(buf));
}
#else /* CONFIG_IEEE80211R */
res = -1;
#endif /* CONFIG_IEEE80211R */
} else {
res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
if (res) {
/*
* EAP-LEAP is an exception from other EAP methods: it
* uses only 16-byte PMK.
*/
res = eapol_sm_get_key(eapol, pmk, 16);
pmk_len = 16;
}
}
if (res) {
wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
"machines");
return;
}
wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
"handshake", pmk, pmk_len);
if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
pmk_len)) {
wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
}
wpa_supplicant_cancel_scan(wpa_s);
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
}
static void wpa_supplicant_notify_eapol_done(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
} else {
wpa_supplicant_cancel_auth_timeout(wpa_s);
wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
}
}
#endif /* IEEE8021X_EAPOL */
#ifndef CONFIG_NO_WPA
static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
{
int ret = 0;
struct wpa_bss *curr = NULL, *bss;
struct wpa_ssid *ssid = wpa_s->current_ssid;
const u8 *ie;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
continue;
if (ssid == NULL ||
((bss->ssid_len == ssid->ssid_len &&
os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
ssid->ssid_len == 0)) {
curr = bss;
break;
}
}
if (curr) {
ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
ret = -1;
ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
ret = -1;
} else {
ret = -1;
}
return ret;
}
static int wpa_supplicant_get_beacon_ie(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
if (wpa_get_beacon_ie(wpa_s) == 0) {
return 0;
}
/* No WPA/RSN IE found in the cached scan results. Try to get updated
* scan results from the driver. */
if (wpa_supplicant_update_scan_results(wpa_s) < 0)
return -1;
return wpa_get_beacon_ie(wpa_s);
}
static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
const void *data, u16 data_len,
size_t *msg_len, void **data_pos)
{
return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
}
static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
const u8 *buf, size_t len)
{
return wpa_ether_send(wpa_s, dest, proto, buf, len);
}
static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
{
wpa_supplicant_cancel_auth_timeout(wpa_s);
}
static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
{
wpa_supplicant_set_state(wpa_s, state);
}
/**
* wpa_supplicant_get_state - Get the connection state
* @wpa_s: Pointer to wpa_supplicant data
* Returns: The current connection state (WPA_*)
*/
static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
{
return wpa_s->wpa_state;
}
static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
{
return wpa_supplicant_get_state(wpa_s);
}
static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
{
wpa_supplicant_deauthenticate(wpa_s, reason_code);
/* Schedule a scan to make sure we continue looking for networks */
wpa_supplicant_req_scan(wpa_s, 5, 0);
}
static void * wpa_supplicant_get_network_ctx(void *wpa_s)
{
return wpa_supplicant_get_ssid(wpa_s);
}
static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_drv_get_bssid(wpa_s, bssid);
}
static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
const u8 *addr, int key_idx, int set_tx,
const u8 *seq, size_t seq_len,
const u8 *key, size_t key_len)
{
struct wpa_supplicant *wpa_s = _wpa_s;
if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
/* Clear the MIC error counter when setting a new PTK. */
wpa_s->mic_errors_seen = 0;
}
#ifdef CONFIG_TESTING_GET_GTK
if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
os_memcpy(wpa_s->last_gtk, key, key_len);
wpa_s->last_gtk_len = key_len;
}
#endif /* CONFIG_TESTING_GET_GTK */
#ifdef CONFIG_TESTING_OPTIONS
if (addr && !is_broadcast_ether_addr(addr)) {
wpa_s->last_tk_alg = alg;
os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN);
wpa_s->last_tk_key_idx = key_idx;
if (key)
os_memcpy(wpa_s->last_tk, key, key_len);
wpa_s->last_tk_len = key_len;
}
#endif /* CONFIG_TESTING_OPTIONS */
return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
key, key_len);
}
static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
int protection_type,
int key_type)
{
return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
key_type);
}
static struct wpa_ssid * wpas_get_network_ctx(struct wpa_supplicant *wpa_s,
void *network_ctx)
{
struct wpa_ssid *ssid;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (network_ctx == ssid)
return ssid;
}
return NULL;
}
static int wpa_supplicant_add_pmkid(void *_wpa_s, void *network_ctx,
const u8 *bssid, const u8 *pmkid,
const u8 *fils_cache_id,
const u8 *pmk, size_t pmk_len)
{
struct wpa_supplicant *wpa_s = _wpa_s;
struct wpa_ssid *ssid;
struct wpa_pmkid_params params;
os_memset(¶ms, 0, sizeof(params));
ssid = wpas_get_network_ctx(wpa_s, network_ctx);
if (ssid)
wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_ADDED MACSTR " %d",
MAC2STR(bssid), ssid->id);
if (ssid && fils_cache_id) {
params.ssid = ssid->ssid;
params.ssid_len = ssid->ssid_len;
params.fils_cache_id = fils_cache_id;
} else {
params.bssid = bssid;
}
params.pmkid = pmkid;
params.pmk = pmk;
params.pmk_len = pmk_len;
return wpa_drv_add_pmkid(wpa_s, ¶ms);
}
static int wpa_supplicant_remove_pmkid(void *_wpa_s, void *network_ctx,
const u8 *bssid, const u8 *pmkid,
const u8 *fils_cache_id)
{
struct wpa_supplicant *wpa_s = _wpa_s;
struct wpa_ssid *ssid;
struct wpa_pmkid_params params;
os_memset(¶ms, 0, sizeof(params));
ssid = wpas_get_network_ctx(wpa_s, network_ctx);
if (ssid)
wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_REMOVED MACSTR " %d",
MAC2STR(bssid), ssid->id);
if (ssid && fils_cache_id) {
params.ssid = ssid->ssid;
params.ssid_len = ssid->ssid_len;
params.fils_cache_id = fils_cache_id;
} else {
params.bssid = bssid;
}
params.pmkid = pmkid;
return wpa_drv_remove_pmkid(wpa_s, ¶ms);
}
#ifdef CONFIG_IEEE80211R
static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
const u8 *ies, size_t ies_len)
{
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
return sme_update_ft_ies(wpa_s, md, ies, ies_len);
return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
}
static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
const u8 *target_ap,
const u8 *ies, size_t ies_len)
{
struct wpa_supplicant *wpa_s = ctx;
int ret;
u8 *data, *pos;
size_t data_len;
if (action != 1) {
wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d",
action);
return -1;
}
/*
* Action frame payload:
* Category[1] = 6 (Fast BSS Transition)
* Action[1] = 1 (Fast BSS Transition Request)
* STA Address
* Target AP Address
* FT IEs
*/
data_len = 2 + 2 * ETH_ALEN + ies_len;
data = os_malloc(data_len);
if (data == NULL)
return -1;
pos = data;
*pos++ = 0x06; /* FT Action category */
*pos++ = action;
os_memcpy(pos, wpa_s->own_addr, ETH_ALEN);
pos += ETH_ALEN;
os_memcpy(pos, target_ap, ETH_ALEN);
pos += ETH_ALEN;
os_memcpy(pos, ies, ies_len);
ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid,
data, data_len, 0);
os_free(data);
return ret;
}
static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
{
struct wpa_supplicant *wpa_s = ctx;
struct wpa_driver_auth_params params;
struct wpa_bss *bss;
bss = wpa_bss_get_bssid(wpa_s, target_ap);
if (bss == NULL)
return -1;
os_memset(¶ms, 0, sizeof(params));
params.bssid = target_ap;
params.freq = bss->freq;
params.ssid = bss->ssid;
params.ssid_len = bss->ssid_len;
params.auth_alg = WPA_AUTH_ALG_FT;
params.local_state_change = 1;
return wpa_drv_authenticate(wpa_s, ¶ms);
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_TDLS
static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
int *tdls_ext_setup,
int *tdls_chan_switch)
{
struct wpa_supplicant *wpa_s = ctx;
*tdls_supported = 0;
*tdls_ext_setup = 0;
*tdls_chan_switch = 0;
if (!wpa_s->drv_capa_known)
return -1;
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
*tdls_supported = 1;
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
*tdls_ext_setup = 1;
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)
*tdls_chan_switch = 1;
return 0;
}
static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
u8 action_code, u8 dialog_token,
u16 status_code, u32 peer_capab,
int initiator, const u8 *buf,
size_t len)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
status_code, peer_capab, initiator, buf,
len);
}
static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_drv_tdls_oper(wpa_s, oper, peer);
}
static int wpa_supplicant_tdls_peer_addset(
void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
const u8 *supp_rates, size_t supp_rates_len,
const struct ieee80211_ht_capabilities *ht_capab,
const struct ieee80211_vht_capabilities *vht_capab,
u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len,
const u8 *supp_channels, size_t supp_channels_len,
const u8 *supp_oper_classes, size_t supp_oper_classes_len)
{
struct wpa_supplicant *wpa_s = ctx;
struct hostapd_sta_add_params params;
os_memset(¶ms, 0, sizeof(params));
params.addr = peer;
params.aid = aid;
params.capability = capability;
params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
/*
* Don't rely only on qosinfo for WMM capability. It may be 0 even when
* present. Allow the WMM IE to also indicate QoS support.
*/
if (wmm || qosinfo)
params.flags |= WPA_STA_WMM;
params.ht_capabilities = ht_capab;
params.vht_capabilities = vht_capab;
params.qosinfo = qosinfo;
params.listen_interval = 0;
params.supp_rates = supp_rates;
params.supp_rates_len = supp_rates_len;
params.set = !add;
params.ext_capab = ext_capab;
params.ext_capab_len = ext_capab_len;
params.supp_channels = supp_channels;
params.supp_channels_len = supp_channels_len;
params.supp_oper_classes = supp_oper_classes;
params.supp_oper_classes_len = supp_oper_classes_len;
return wpa_drv_sta_add(wpa_s, ¶ms);
}
static int wpa_supplicant_tdls_enable_channel_switch(
void *ctx, const u8 *addr, u8 oper_class,
const struct hostapd_freq_params *params)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class,
params);
}
static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr)
{
struct wpa_supplicant *wpa_s = ctx;
return wpa_drv_tdls_disable_channel_switch(wpa_s, addr);
}
#endif /* CONFIG_TDLS */
#endif /* CONFIG_NO_WPA */
enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
{
if (os_strcmp(field, "IDENTITY") == 0)
return WPA_CTRL_REQ_EAP_IDENTITY;
else if (os_strcmp(field, "PASSWORD") == 0)
return WPA_CTRL_REQ_EAP_PASSWORD;
else if (os_strcmp(field, "NEW_PASSWORD") == 0)
return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
else if (os_strcmp(field, "PIN") == 0)
return WPA_CTRL_REQ_EAP_PIN;
else if (os_strcmp(field, "OTP") == 0)
return WPA_CTRL_REQ_EAP_OTP;
else if (os_strcmp(field, "PASSPHRASE") == 0)
return WPA_CTRL_REQ_EAP_PASSPHRASE;
else if (os_strcmp(field, "SIM") == 0)
return WPA_CTRL_REQ_SIM;
else if (os_strcmp(field, "PSK_PASSPHRASE") == 0)
return WPA_CTRL_REQ_PSK_PASSPHRASE;
else if (os_strcmp(field, "EXT_CERT_CHECK") == 0)
return WPA_CTRL_REQ_EXT_CERT_CHECK;
return WPA_CTRL_REQ_UNKNOWN;
}
const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
const char *default_txt,
const char **txt)
{
const char *ret = NULL;
*txt = default_txt;
switch (field) {
case WPA_CTRL_REQ_EAP_IDENTITY:
*txt = "Identity";
ret = "IDENTITY";
break;
case WPA_CTRL_REQ_EAP_PASSWORD:
*txt = "Password";
ret = "PASSWORD";
break;
case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
*txt = "New Password";
ret = "NEW_PASSWORD";
break;
case WPA_CTRL_REQ_EAP_PIN:
*txt = "PIN";
ret = "PIN";
break;
case WPA_CTRL_REQ_EAP_OTP:
ret = "OTP";
break;
case WPA_CTRL_REQ_EAP_PASSPHRASE:
*txt = "Private key passphrase";
ret = "PASSPHRASE";
break;
case WPA_CTRL_REQ_SIM:
ret = "SIM";
break;
case WPA_CTRL_REQ_PSK_PASSPHRASE:
*txt = "PSK or passphrase";
ret = "PSK_PASSPHRASE";
break;
case WPA_CTRL_REQ_EXT_CERT_CHECK:
*txt = "External server certificate validation";
ret = "EXT_CERT_CHECK";
break;
default:
break;
}
/* txt needs to be something */
if (*txt == NULL) {
wpa_printf(MSG_WARNING, "No message for request %d", field);
ret = NULL;
}
return ret;
}
void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
const char *field_name, const char *txt)
{
char *buf;
size_t buflen;
int len;
buflen = 100 + os_strlen(txt) + ssid->ssid_len;
buf = os_malloc(buflen);
if (buf == NULL)
return;
len = os_snprintf(buf, buflen, "%s-%d:%s needed for SSID ",
field_name, ssid->id, txt);
if (os_snprintf_error(buflen, len)) {
os_free(buf);
return;
}
if (ssid->ssid && buflen > len + ssid->ssid_len) {
os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
len += ssid->ssid_len;
buf[len] = '\0';
}
buf[buflen - 1] = '\0';
wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s", buf);
os_free(buf);
}
#ifdef IEEE8021X_EAPOL
#if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
static void wpa_supplicant_eap_param_needed(void *ctx,
enum wpa_ctrl_req_type field,
const char *default_txt)
{
struct wpa_supplicant *wpa_s = ctx;
struct wpa_ssid *ssid = wpa_s->current_ssid;
const char *field_name, *txt = NULL;
if (ssid == NULL)
return;
if (field == WPA_CTRL_REQ_EXT_CERT_CHECK)
ssid->eap.pending_ext_cert_check = PENDING_CHECK;
wpas_notify_network_request(wpa_s, ssid, field, default_txt);
field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
&txt);
if (field_name == NULL) {
wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
field);
return;
}
wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
}
#else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
#define wpa_supplicant_eap_param_needed NULL
#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
#ifdef CONFIG_EAP_PROXY
static void wpa_supplicant_eap_proxy_cb(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
size_t len;
wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1,
wpa_s->imsi, &len);
if (wpa_s->mnc_len > 0) {
wpa_s->imsi[len] = '\0';
wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
wpa_s->imsi, wpa_s->mnc_len);
} else {
wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
}
}
static void wpa_sm_sim_state_error_handler(struct wpa_supplicant *wpa_s)
{
int i;
struct wpa_ssid *ssid;
const struct eap_method_type *eap_methods;
if (!wpa_s->conf)
return;
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
eap_methods = ssid->eap.eap_methods;
if (!eap_methods)
continue;
for (i = 0; eap_methods[i].method != EAP_TYPE_NONE; i++) {
if (eap_methods[i].vendor == EAP_VENDOR_IETF &&
(eap_methods[i].method == EAP_TYPE_SIM ||
eap_methods[i].method == EAP_TYPE_AKA ||
eap_methods[i].method == EAP_TYPE_AKA_PRIME)) {
wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
break;
}
}
}
}
static void
wpa_supplicant_eap_proxy_notify_sim_status(void *ctx,
enum eap_proxy_sim_state sim_state)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status %u", sim_state);
switch (sim_state) {
case SIM_STATE_ERROR:
wpa_sm_sim_state_error_handler(wpa_s);
break;
default:
wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status unknown");
break;
}
}
#endif /* CONFIG_EAP_PROXY */
static void wpa_supplicant_port_cb(void *ctx, int authorized)
{
struct wpa_supplicant *wpa_s = ctx;
#ifdef CONFIG_AP
if (wpa_s->ap_iface) {
wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
"port status: %s",
authorized ? "Authorized" : "Unauthorized");
return;
}
#endif /* CONFIG_AP */
wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
authorized ? "Authorized" : "Unauthorized");
wpa_drv_set_supp_port(wpa_s, authorized);
}
static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
const char *altsubject[], int num_altsubject,
const char *cert_hash,
const struct wpabuf *cert)
{
struct wpa_supplicant *wpa_s = ctx;
wpas_notify_certification(wpa_s, depth, subject, altsubject,
num_altsubject, cert_hash, cert);
}
static void wpa_supplicant_status_cb(void *ctx, const char *status,
const char *parameter)
{
struct wpa_supplicant *wpa_s = ctx;
wpas_notify_eap_status(wpa_s, status, parameter);
}
static void wpa_supplicant_eap_error_cb(void *ctx, int error_code)
{
struct wpa_supplicant *wpa_s = ctx;
wpas_notify_eap_error(wpa_s, error_code);
}
static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
{
struct wpa_supplicant *wpa_s = ctx;
char *str;
int res;
wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
id, len);
if (wpa_s->current_ssid == NULL)
return;
if (id == NULL) {
if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
"NULL", 0) < 0)
return;
} else {
str = os_malloc(len * 2 + 1);
if (str == NULL)
return;
wpa_snprintf_hex(str, len * 2 + 1, id, len);
res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
str, 0);
os_free(str);
if (res < 0)
return;
}
if (wpa_s->conf->update_config) {
res = wpa_config_write(wpa_s->confname, wpa_s->conf);
if (res) {
wpa_printf(MSG_DEBUG, "Failed to update config after "
"anonymous_id update");
}
}
}
#endif /* IEEE8021X_EAPOL */
int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
{
#ifdef IEEE8021X_EAPOL
struct eapol_ctx *ctx;
ctx = os_zalloc(sizeof(*ctx));
if (ctx == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
return -1;
}
ctx->ctx = wpa_s;
ctx->msg_ctx = wpa_s;
ctx->eapol_send_ctx = wpa_s;
ctx->preauth = 0;
ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
ctx->eapol_send = wpa_supplicant_eapol_send;
ctx->set_wep_key = wpa_eapol_set_wep_key;
#ifndef CONFIG_NO_CONFIG_BLOBS
ctx->set_config_blob = wpa_supplicant_set_config_blob;
ctx->get_config_blob = wpa_supplicant_get_config_blob;
#endif /* CONFIG_NO_CONFIG_BLOBS */
ctx->aborted_cached = wpa_supplicant_aborted_cached;
ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers;
ctx->wps = wpa_s->wps;
ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
#ifdef CONFIG_EAP_PROXY
ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb;
ctx->eap_proxy_notify_sim_status =
wpa_supplicant_eap_proxy_notify_sim_status;
#endif /* CONFIG_EAP_PROXY */
ctx->port_cb = wpa_supplicant_port_cb;
ctx->cb = wpa_supplicant_eapol_cb;
ctx->cert_cb = wpa_supplicant_cert_cb;
ctx->cert_in_cb = wpa_s->conf->cert_in_cb;
ctx->status_cb = wpa_supplicant_status_cb;
ctx->eap_error_cb = wpa_supplicant_eap_error_cb;
ctx->set_anon_id = wpa_supplicant_set_anon_id;
ctx->cb_ctx = wpa_s;
wpa_s->eapol = eapol_sm_init(ctx);
if (wpa_s->eapol == NULL) {
os_free(ctx);
wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
"machines.");
return -1;
}
#endif /* IEEE8021X_EAPOL */
return 0;
}
#ifndef CONFIG_NO_WPA
static void wpa_supplicant_set_rekey_offload(void *ctx,
const u8 *kek, size_t kek_len,
const u8 *kck, size_t kck_len,
const u8 *replay_ctr)
{
struct wpa_supplicant *wpa_s = ctx;
wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
}
static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk,
size_t pmk_len)
{
struct wpa_supplicant *wpa_s = ctx;
if (wpa_s->conf->key_mgmt_offload &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
return wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0,
NULL, 0, pmk, pmk_len);
else
return 0;
}
static void wpa_supplicant_fils_hlp_rx(void *ctx, const u8 *dst, const u8 *src,
const u8 *pkt, size_t pkt_len)
{
struct wpa_supplicant *wpa_s = ctx;
char *hex;
size_t hexlen;
hexlen = pkt_len * 2 + 1;
hex = os_malloc(hexlen);
if (!hex)
return;
wpa_snprintf_hex(hex, hexlen, pkt, pkt_len);
wpa_msg(wpa_s, MSG_INFO, FILS_HLP_RX "dst=" MACSTR " src=" MACSTR
" frame=%s", MAC2STR(dst), MAC2STR(src), hex);
os_free(hex);
}
static int wpa_supplicant_channel_info(void *_wpa_s,
struct wpa_channel_info *ci)
{
struct wpa_supplicant *wpa_s = _wpa_s;
return wpa_drv_channel_info(wpa_s, ci);
}
#endif /* CONFIG_NO_WPA */
int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
{
#ifndef CONFIG_NO_WPA
struct wpa_sm_ctx *ctx;
ctx = os_zalloc(sizeof(*ctx));
if (ctx == NULL) {
wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
return -1;
}
ctx->ctx = wpa_s;
ctx->msg_ctx = wpa_s;
ctx->set_state = _wpa_supplicant_set_state;
ctx->get_state = _wpa_supplicant_get_state;
ctx->deauthenticate = _wpa_supplicant_deauthenticate;
ctx->set_key = wpa_supplicant_set_key;
ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
ctx->get_bssid = wpa_supplicant_get_bssid;
ctx->ether_send = _wpa_ether_send;
ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
ctx->alloc_eapol = _wpa_alloc_eapol;
ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
ctx->add_pmkid = wpa_supplicant_add_pmkid;
ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
#ifndef CONFIG_NO_CONFIG_BLOBS
ctx->set_config_blob = wpa_supplicant_set_config_blob;
ctx->get_config_blob = wpa_supplicant_get_config_blob;
#endif /* CONFIG_NO_CONFIG_BLOBS */
ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
#ifdef CONFIG_IEEE80211R
ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
ctx->send_ft_action = wpa_supplicant_send_ft_action;
ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_TDLS
ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
ctx->tdls_oper = wpa_supplicant_tdls_oper;
ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
ctx->tdls_enable_channel_switch =
wpa_supplicant_tdls_enable_channel_switch;
ctx->tdls_disable_channel_switch =
wpa_supplicant_tdls_disable_channel_switch;
#endif /* CONFIG_TDLS */
ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk;
ctx->fils_hlp_rx = wpa_supplicant_fils_hlp_rx;
ctx->channel_info = wpa_supplicant_channel_info;
wpa_s->wpa = wpa_sm_init(ctx);
if (wpa_s->wpa == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
os_free(ctx);
return -1;
}
#endif /* CONFIG_NO_WPA */
return 0;
}
void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
struct rsn_supp_config conf;
if (ssid) {
os_memset(&conf, 0, sizeof(conf));
conf.network_ctx = ssid;
conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
#ifdef IEEE8021X_EAPOL
conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
wpa_s->conf->okc : ssid->proactive_key_caching;
conf.eap_workaround = ssid->eap_workaround;
conf.eap_conf_ctx = &ssid->eap;
#endif /* IEEE8021X_EAPOL */
conf.ssid = ssid->ssid;
conf.ssid_len = ssid->ssid_len;
conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
#ifdef CONFIG_P2P
if (ssid->p2p_group && wpa_s->current_bss &&
!wpa_s->p2p_disable_ip_addr_req) {
struct wpabuf *p2p;
p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
P2P_IE_VENDOR_TYPE);
if (p2p) {
u8 group_capab;
group_capab = p2p_get_group_capab(p2p);
if (group_capab &
P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
conf.p2p = 1;
wpabuf_free(p2p);
}
}
#endif /* CONFIG_P2P */
conf.wpa_rsc_relaxation = wpa_s->conf->wpa_rsc_relaxation;
#ifdef CONFIG_FILS
if (wpa_key_mgmt_fils(wpa_s->key_mgmt))
conf.fils_cache_id =
wpa_bss_get_fils_cache_id(wpa_s->current_bss);
#endif /* CONFIG_FILS */
}
wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
}