/src/hostap/wpa_supplicant/wpas_glue.c

Source
/*
 * 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 "common/ptksa_cache.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
 */
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->drv_flags & WPA_DRIVER_FLAGS_CONTROL_PORT) {
    int encrypt = wpa_s->wpa &&
      wpa_sm_has_ptk_installed(wpa_s->wpa);

    return wpa_drv_tx_control_port(wpa_s, dest, proto, buf, len,
                 !encrypt);
  }

  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];
  struct driver_sta_mlo_info drv_mlo;
  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");
    os_memset(&drv_mlo, 0, sizeof(drv_mlo));
    if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
        (!wpa_s->valid_links ||
         wpas_drv_get_sta_mlo_info(wpa_s, &drv_mlo) == 0) &&
        !is_zero_ether_addr(bssid)) {
      dst = drv_mlo.valid_links ? drv_mlo.ap_mld_addr : bssid;
      wpa_printf(MSG_DEBUG, "Using current %s " MACSTR
           " from the driver as the EAPOL destination",
           drv_mlo.valid_links ? "AP MLD MAC address" :
           "BSSID",
           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 BSSID or
     * AP MLD MAC address (in the case of MLO connection) as the
     * EAPOL destination. */
    dst = wpa_s->valid_links ? wpa_s->ap_mld_addr : 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;
}


#ifdef CONFIG_WEP
/**
 * 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, -1, WPA_ALG_WEP,
             unicast ? wpa_s->bssid : NULL,
             keyidx, unicast, NULL, 0, key, keylen,
             unicast ? KEY_FLAG_PAIRWISE_RX_TX :
             KEY_FLAG_GROUP_RX_TX_DEFAULT);
}
#endif /* CONFIG_WEP */


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;
  const u8 *auth_addr;
  int res, pmk_len;
  u8 pmk[PMK_LEN_MAX];

  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) {
    int timeout = 2;
    /*
     * Make sure we do not get stuck here waiting for long EAPOL
     * timeout if the AP does not disconnect in case of
     * authentication failure.
     */
    if (wpa_s->eapol_failed) {
      wpa_printf(MSG_DEBUG,
           "EAPOL authentication failed again and AP did not disconnect us");
      timeout = 0;
    }
    wpa_s->eapol_failed = 1;
    wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
  } else {
    wpa_s->eapol_failed = 0;
    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");

  if (wpa_key_mgmt_sha384(wpa_s->key_mgmt))
    pmk_len = PMK_LEN_SUITE_B_192;
  else
    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) {
      if (wpa_key_mgmt_sha384(wpa_s->key_mgmt))
        os_memcpy(pmk, buf, pmk_len);
      else
        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, -1, 0, NULL, 0, 0, NULL, 0, pmk,
          pmk_len, KEY_FLAG_PMK)) {
    wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
  }

  if (wpa_s->wpa_proto == WPA_PROTO_RSN &&
      !wpa_key_mgmt_suite_b(wpa_s->key_mgmt) &&
      !wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
    auth_addr = wpa_sm_get_auth_addr(wpa_s->wpa);
    if (!is_zero_ether_addr(auth_addr))
      wpa_sm_set_pmk(wpa_s->wpa, pmk, pmk_len, NULL,
               auth_addr);
  }

  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 (!ether_addr_equal(bss->bssid, wpa_s->bssid))
      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;
    }
#ifdef CONFIG_OWE
    if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
        (bss->flags & WPA_BSS_OWE_TRANSITION)) {
      curr = bss;
      break;
    }
#endif /* CONFIG_OWE */
  }

  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;

    ie = wpa_bss_get_ie(curr, WLAN_EID_RSNX);
    if (wpa_sm_set_ap_rsnxe(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
      ret = -1;

    ie = wpa_bss_get_vendor_ie(curr, RSNE_OVERRIDE_IE_VENDOR_TYPE);
    if (wpa_sm_set_ap_rsne_override(wpa_s->wpa, ie,
            ie ? 2 + ie[1] : 0))
      ret = -1;

    ie = wpa_bss_get_vendor_ie(curr,
             RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
    if (wpa_sm_set_ap_rsne_override_2(wpa_s->wpa, ie,
              ie ? 2 + ie[1] : 0))
      ret = -1;

    ie = wpa_bss_get_vendor_ie(curr, RSNXE_OVERRIDE_IE_VENDOR_TYPE);
    if (wpa_sm_set_ap_rsnxe_override(wpa_s->wpa, ie,
             ie ? 2 + ie[1] : 0))
      ret = -1;

    ie = wpa_bss_get_ie_ext(curr, WLAN_EID_EXT_SECURITY_PROFILE);
    if (wpa_sm_set_ap_security_profile(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, wpa_s->bssid) < 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, u16 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_reconnect(void *wpa_s)
{
  wpa_supplicant_reconnect(wpa_s);
}


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, int link_id, 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,
          enum key_flag key_flag)
{
  struct wpa_supplicant *wpa_s = _wpa_s;
  int ret;

  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) &&
      !(key_flag & KEY_FLAG_MODIFY)) {
    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 */

  ret = wpa_drv_set_key(wpa_s, link_id, alg, addr, key_idx, set_tx, seq,
            seq_len, key, key_len, key_flag);
  if (ret == 0 && (key_idx == 6 || key_idx == 7) &&
      alg != WPA_ALG_NONE && key_len > 0)
    wpa_s->bigtk_set = true;

  return ret;
}


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,
            u32 pmk_lifetime, u8 pmk_reauth_threshold,
            int akmp)
{
  struct wpa_supplicant *wpa_s = _wpa_s;
  struct wpa_ssid *ssid;
  struct wpa_pmkid_params params;

  os_memset(&params, 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 ((akmp == WPA_KEY_MGMT_FT_IEEE8021X ||
         akmp == WPA_KEY_MGMT_FT_IEEE8021X_SHA384) &&
        !ssid->ft_eap_pmksa_caching) {
      /* Since we will not be using PMKSA caching for FT-EAP
       * within wpa_supplicant to avoid known interop issues
       * with APs, do not add this PMKID to the driver either
       * so that we won't be hitting those interop issues
       * with driver-based RSNE generation. */
      wpa_printf(MSG_DEBUG,
           "FT: Do not add PMKID entry to the driver since FT-EAP PMKSA caching is not enabled in configuration");
      return 0;
    }
  }
  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;
  params.pmk_lifetime = pmk_lifetime;
  params.pmk_reauth_threshold = pmk_reauth_threshold;

  return wpa_drv_add_pmkid(wpa_s, &params);
}


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(&params, 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, &params);
}


#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(&params, 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, &params);
}
#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, int link_id)
{
  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, link_id);
}


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,
  const struct ieee80211_he_capabilities *he_capab,
  size_t he_capab_len,
  const struct ieee80211_he_6ghz_band_cap *he_6ghz_he_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,
  const struct ieee80211_eht_capabilities *eht_capab,
  size_t eht_capab_len, int mld_link_id)
{
  struct wpa_supplicant *wpa_s = ctx;
  struct hostapd_sta_add_params params;

  os_memset(&params, 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.he_capab = he_capab;
  params.he_capab_len = he_capab_len;
  params.he_6ghz_capab = he_6ghz_he_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;
  params.eht_capab = eht_capab;
  params.eht_capab_len = eht_capab_len;
  params.mld_link_id = mld_link_id;

  return wpa_drv_sta_add(wpa_s, &params);
}


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)
{
  wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s-%d:%s needed for SSID %s",
    field_name, ssid->id, txt,
    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
}


#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, struct tls_cert_data *cert,
           const char *cert_hash)
{
  struct wpa_supplicant *wpa_s = ctx;

  wpas_notify_certification(wpa_s, cert, cert_hash);
}


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 int wpa_supplicant_eap_auth_start_cb(void *ctx)
{
  struct wpa_supplicant *wpa_s = ctx;

  if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey &&
      !wpa_sm_ext_key_id_active(wpa_s->wpa)) {
    wpa_msg(wpa_s, MSG_INFO,
      "WPA: PTK0 rekey not allowed, reconnecting");
    wpa_supplicant_reconnect(wpa_s);
    return -1;
  }
  return 0;
}


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");
    }
  }
}


static bool wpas_encryption_required(void *ctx)
{
  struct wpa_supplicant *wpa_s = ctx;

  return wpa_s->wpa &&
    wpa_sm_has_ptk_installed(wpa_s->wpa) &&
    wpa_sm_pmf_enabled(wpa_s->wpa);
}

#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;
#ifdef CONFIG_WEP
  ctx->set_wep_key = wpa_eapol_set_wep_key;
#endif /* CONFIG_WEP */
#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;
#ifndef CONFIG_OPENSC_ENGINE_PATH
  ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
#endif /* CONFIG_OPENSC_ENGINE_PATH */
#ifndef CONFIG_PKCS11_ENGINE_PATH
  ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
#endif /* CONFIG_PKCS11_ENGINE_PATH */
#ifndef CONFIG_PKCS11_MODULE_PATH
  ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
#endif /* CONFIG_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->confirm_auth_cb = wpa_supplicant_eap_auth_start_cb;
  ctx->set_anon_id = wpa_supplicant_set_anon_id;
  ctx->encryption_required = wpas_encryption_required;
  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, -1, 0, NULL, 0, 0,
               NULL, 0, pmk, pmk_len, KEY_FLAG_PMK);
  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);
}


static void disable_wpa_wpa2(struct wpa_ssid *ssid)
{
  ssid->proto &= ~WPA_PROTO_WPA;
  ssid->proto |= WPA_PROTO_RSN;
  ssid->key_mgmt &= ~(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
          WPA_KEY_MGMT_PSK_SHA256);
  ssid->group_cipher &= ~WPA_CIPHER_TKIP;
  if (!(ssid->group_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
            WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256)))
    ssid->group_cipher |= WPA_CIPHER_CCMP;
  ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
}


void wpas_transition_disable(struct wpa_supplicant *wpa_s, u8 bitmap)
{
  struct wpa_ssid *ssid;
  int changed = 0;

  wpa_msg(wpa_s, MSG_INFO, TRANSITION_DISABLE "%02x", bitmap);

  ssid = wpa_s->current_ssid;
  if (!ssid)
    return;

#ifdef CONFIG_SAE
  if ((bitmap & TRANSITION_DISABLE_WPA3_PERSONAL) &&
      wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
      wpa_key_mgmt_sae(ssid->key_mgmt) &&
      (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
       (ssid->group_cipher & WPA_CIPHER_TKIP))) {
    wpa_printf(MSG_DEBUG,
         "WPA3-Personal transition mode disabled based on AP notification");
    disable_wpa_wpa2(ssid);
    changed = 1;
  }

  if ((bitmap & TRANSITION_DISABLE_SAE_PK) &&
      wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
#ifdef CONFIG_SME
      wpa_s->sme.sae.state == SAE_ACCEPTED &&
      wpa_s->sme.sae.pk &&
#endif /* CONFIG_SME */
      wpa_key_mgmt_sae(ssid->key_mgmt) &&
      (ssid->sae_pk != SAE_PK_MODE_ONLY ||
       ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
       (ssid->group_cipher & WPA_CIPHER_TKIP))) {
    wpa_printf(MSG_DEBUG,
         "SAE-PK: SAE authentication without PK disabled based on AP notification");
    disable_wpa_wpa2(ssid);
    ssid->sae_pk = SAE_PK_MODE_ONLY;
    changed = 1;
  }
#endif /* CONFIG_SAE */

  if ((bitmap & TRANSITION_DISABLE_WPA3_ENTERPRISE) &&
      wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
      (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X |
             WPA_KEY_MGMT_FT_IEEE8021X |
             WPA_KEY_MGMT_IEEE8021X_SHA256 |
             WPA_KEY_MGMT_IEEE8021X_SHA384)) &&
      (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
       (ssid->group_cipher & WPA_CIPHER_TKIP))) {
    disable_wpa_wpa2(ssid);
    changed = 1;
  }

  if ((bitmap & TRANSITION_DISABLE_ENHANCED_OPEN) &&
      wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
      (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
      !ssid->owe_only) {
    ssid->owe_only = 1;
    changed = 1;
  }

  if (!changed)
    return;

#ifndef CONFIG_NO_CONFIG_WRITE
  if (wpa_s->conf->update_config &&
      wpa_config_write(wpa_s->confname, wpa_s->conf))
    wpa_printf(MSG_DEBUG, "Failed to update configuration");
#endif /* CONFIG_NO_CONFIG_WRITE */
}


static void wpa_supplicant_transition_disable(void *_wpa_s, u8 bitmap)
{
  struct wpa_supplicant *wpa_s = _wpa_s;
  wpas_transition_disable(wpa_s, bitmap);
}


static void wpa_supplicant_store_ptk(void *ctx, const u8 *addr, int cipher,
             u32 life_time, const struct wpa_ptk *ptk)
{
  struct wpa_supplicant *wpa_s = ctx;

  ptksa_cache_add(wpa_s->ptksa, wpa_s->own_addr, addr, cipher, life_time,
      ptk, NULL, NULL, 0, 0);
}


#ifdef CONFIG_PASN
static int wpa_supplicant_set_ltf_keyseed(void *_wpa_s, const u8 *own_addr,
            const u8 *peer_addr,
            size_t ltf_keyseed_len,
            const u8 *ltf_keyseed)
{
  struct wpa_supplicant *wpa_s = _wpa_s;

  return wpa_drv_set_secure_ranging_ctx(wpa_s, own_addr, peer_addr, 0, 0,
                NULL, ltf_keyseed_len,
                ltf_keyseed, 0);
}
#endif /* CONFIG_PASN */


static void
wpa_supplicant_notify_pmksa_cache_entry(void *_wpa_s,
          struct rsn_pmksa_cache_entry *entry)
{
  struct wpa_supplicant *wpa_s = _wpa_s;

  wpas_notify_pmk_cache_added(wpa_s, entry);
}


static void wpa_supplicant_ssid_verified(void *_wpa_s)
{
  struct wpa_supplicant *wpa_s = _wpa_s;

  wpa_s->ssid_verified = true;
  wpa_msg(wpa_s, MSG_INFO, "RSN: SSID matched expected value");
}


static void wpa_supplicant_sae_pw_id_change(void *_wpa_s,
              struct wpabuf_array *wa)
{
  struct wpa_supplicant *wpa_s = _wpa_s;
  struct wpa_ssid *ssid = wpa_s->current_ssid;

  wpa_msg(wpa_s, MSG_INFO, "RSN: Received %u SAE Password Identifier(s)",
    wa->num);
  if (!ssid) {
    wpabuf_array_free(wa);
    return;
  }

  wpabuf_array_free(ssid->alt_sae_password_ids);
  ssid->alt_sae_password_ids = wa;

#ifndef CONFIG_NO_CONFIG_WRITE
  if (wpa_s->conf->update_config &&
      wpa_config_write(wpa_s->confname, wpa_s->conf))
    wpa_printf(MSG_DEBUG, "SAE: Failed to update configuration");
#endif /* CONFIG_NO_CONFIG_WRITE */
}

#endif /* CONFIG_NO_WPA */


int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
{
#ifndef CONFIG_NO_WPA
  struct wpa_sm_ctx *ctx;

  wpa_s->ptksa = ptksa_cache_init();
  if (!wpa_s->ptksa) {
    wpa_printf(MSG_ERROR, "Failed to allocate PTKSA");
    return -1;
  }

  ctx = os_zalloc(sizeof(*ctx));
  if (ctx == NULL) {
    wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");

    ptksa_cache_deinit(wpa_s->ptksa);
    wpa_s->ptksa = NULL;

    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->reconnect = _wpa_supplicant_reconnect;
  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;
  ctx->transition_disable = wpa_supplicant_transition_disable;
  ctx->store_ptk = wpa_supplicant_store_ptk;
#ifdef CONFIG_PASN
  ctx->set_ltf_keyseed = wpa_supplicant_set_ltf_keyseed;
#endif /* CONFIG_PASN */
  ctx->notify_pmksa_cache_entry = wpa_supplicant_notify_pmksa_cache_entry;
  ctx->ssid_verified = wpa_supplicant_ssid_verified;
  ctx->sae_pw_id_change = wpa_supplicant_sae_pw_id_change;

  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);
    ptksa_cache_deinit(wpa_s->ptksa);
    wpa_s->ptksa = NULL;
    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;
    conf.wpa_deny_ptk0_rekey = ssid->wpa_deny_ptk0_rekey;
    conf.owe_ptk_workaround = ssid->owe_ptk_workaround;
#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 */
    if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_BEACON_PROTECTION) ||
        (wpa_s->drv_flags2 &
         WPA_DRIVER_FLAGS2_BEACON_PROTECTION_CLIENT))
      conf.beacon_prot = ssid->beacon_prot;

#ifdef CONFIG_PASN
#ifdef CONFIG_TESTING_OPTIONS
    conf.force_kdk_derivation = wpa_s->conf->force_kdk_derivation;
#endif /* CONFIG_TESTING_OPTIONS */
#endif /* CONFIG_PASN */
  }
  wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
}

Coverage Report

Created: 2026-09-03 06:15