+++ /dev/null
-/*
- * WPA Supplicant - Client mode MLME
- * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
- * Copyright (c) 2004, Instant802 Networks, Inc.
- * Copyright (c) 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "eloop.h"
-#include "config_ssid.h"
-#include "wpa_supplicant_i.h"
-#include "notify.h"
-#include "driver_i.h"
-#include "rsn_supp/wpa.h"
-#include "common/ieee802_11_defs.h"
-#include "common/ieee802_11_common.h"
-#include "mlme.h"
-
-
-/* Timeouts and intervals in milliseconds */
-#define IEEE80211_AUTH_TIMEOUT (200)
-#define IEEE80211_AUTH_MAX_TRIES 3
-#define IEEE80211_ASSOC_TIMEOUT (200)
-#define IEEE80211_ASSOC_MAX_TRIES 3
-#define IEEE80211_MONITORING_INTERVAL (2000)
-#define IEEE80211_PROBE_INTERVAL (60000)
-#define IEEE80211_RETRY_AUTH_INTERVAL (1000)
-#define IEEE80211_SCAN_INTERVAL (2000)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15000)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (20000)
-
-#define IEEE80211_PROBE_DELAY (33)
-#define IEEE80211_CHANNEL_TIME (33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (200)
-#define IEEE80211_SCAN_RESULT_EXPIRE (10000)
-#define IEEE80211_IBSS_MERGE_INTERVAL (30000)
-#define IEEE80211_IBSS_INACTIVITY_LIMIT (60000)
-
-#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-
-
-#define IEEE80211_FC(type, stype) host_to_le16((type << 2) | (stype << 4))
-
-
-struct ieee80211_sta_bss {
- struct ieee80211_sta_bss *next;
- struct ieee80211_sta_bss *hnext;
-
- u8 bssid[ETH_ALEN];
- u8 ssid[MAX_SSID_LEN];
- size_t ssid_len;
- u16 capability; /* host byte order */
- int hw_mode;
- int channel;
- int freq;
- int rssi;
- u8 *ie;
- size_t ie_len;
- u8 *wpa_ie;
- size_t wpa_ie_len;
- u8 *rsn_ie;
- size_t rsn_ie_len;
- u8 *wmm_ie;
- size_t wmm_ie_len;
- u8 *mdie;
- size_t mdie_len;
-#define IEEE80211_MAX_SUPP_RATES 32
- u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
- size_t supp_rates_len;
- int beacon_int;
- u64 timestamp;
-
- int probe_resp;
- struct os_time last_update;
-};
-
-
-static void ieee80211_send_probe_req(struct wpa_supplicant *wpa_s,
- const u8 *dst,
- const u8 *ssid, size_t ssid_len);
-static struct ieee80211_sta_bss *
-ieee80211_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid);
-static int ieee80211_sta_find_ibss(struct wpa_supplicant *wpa_s);
-static int ieee80211_sta_wep_configured(struct wpa_supplicant *wpa_s);
-static void ieee80211_sta_timer(void *eloop_ctx, void *timeout_ctx);
-static void ieee80211_sta_scan_timer(void *eloop_ctx, void *timeout_ctx);
-static void ieee80211_build_tspec(struct wpabuf *buf);
-static int ieee80211_sta_set_probe_req_ie(struct wpa_supplicant *wpa_s,
- const u8 *ies, size_t ies_len);
-
-
-static int ieee80211_sta_set_channel(struct wpa_supplicant *wpa_s,
- enum hostapd_hw_mode phymode, int chan,
- int freq)
-{
- size_t i;
- struct hostapd_hw_modes *mode;
-
- for (i = 0; i < wpa_s->mlme.num_modes; i++) {
- mode = &wpa_s->mlme.modes[i];
- if (mode->mode == phymode) {
- wpa_s->mlme.curr_rates = mode->rates;
- wpa_s->mlme.num_curr_rates = mode->num_rates;
- break;
- }
- }
-
- return wpa_drv_set_channel(wpa_s, phymode, chan, freq);
-}
-
-
-static int ecw2cw(int ecw)
-{
- int cw = 1;
- while (ecw > 0) {
- cw <<= 1;
- ecw--;
- }
- return cw - 1;
-}
-
-
-static void ieee80211_sta_wmm_params(struct wpa_supplicant *wpa_s,
- const u8 *wmm_param, size_t wmm_param_len)
-{
- size_t left;
- int count;
- const u8 *pos;
- u8 wmm_acm;
-
- if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
- return;
- count = wmm_param[6] & 0x0f;
- if (count == wpa_s->mlme.wmm_last_param_set)
- return;
- wpa_s->mlme.wmm_last_param_set = count;
-
- pos = wmm_param + 8;
- left = wmm_param_len - 8;
-
- wmm_acm = 0;
- for (; left >= 4; left -= 4, pos += 4) {
- int aci = (pos[0] >> 5) & 0x03;
- int acm = (pos[0] >> 4) & 0x01;
- int aifs, cw_max, cw_min, burst_time;
-
- switch (aci) {
- case 1: /* AC_BK */
- if (acm)
- wmm_acm |= BIT(1) | BIT(2); /* BK/- */
- break;
- case 2: /* AC_VI */
- if (acm)
- wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
- break;
- case 3: /* AC_VO */
- if (acm)
- wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
- break;
- case 0: /* AC_BE */
- default:
- if (acm)
- wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
- break;
- }
-
- aifs = pos[0] & 0x0f;
- cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
- cw_min = ecw2cw(pos[1] & 0x0f);
- /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
- burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
- wpa_printf(MSG_DEBUG, "MLME: WMM aci=%d acm=%d aifs=%d "
- "cWmin=%d cWmax=%d burst=%d",
- aci, acm, aifs, cw_min, cw_max, burst_time);
- /* TODO: driver configuration */
- }
-}
-
-
-static void ieee80211_set_associated(struct wpa_supplicant *wpa_s, int assoc)
-{
- if (wpa_s->mlme.associated == assoc && !assoc)
- return;
-
- wpa_s->mlme.associated = assoc;
-
- if (assoc) {
- union wpa_event_data data;
- os_memset(&data, 0, sizeof(data));
- wpa_s->mlme.prev_bssid_set = 1;
- os_memcpy(wpa_s->mlme.prev_bssid, wpa_s->bssid, ETH_ALEN);
- data.assoc_info.req_ies = wpa_s->mlme.assocreq_ies;
- data.assoc_info.req_ies_len = wpa_s->mlme.assocreq_ies_len;
- data.assoc_info.resp_ies = wpa_s->mlme.assocresp_ies;
- data.assoc_info.resp_ies_len = wpa_s->mlme.assocresp_ies_len;
- data.assoc_info.freq = wpa_s->mlme.freq;
- wpa_supplicant_event(wpa_s, EVENT_ASSOC, &data);
- } else {
- wpa_supplicant_event(wpa_s, EVENT_DISASSOC, NULL);
- }
- os_get_time(&wpa_s->mlme.last_probe);
-}
-
-
-static int ieee80211_sta_tx(struct wpa_supplicant *wpa_s, const u8 *buf,
- size_t len)
-{
- return wpa_drv_send_mlme(wpa_s, buf, len);
-}
-
-
-static void ieee80211_send_auth(struct wpa_supplicant *wpa_s,
- int transaction, const u8 *extra,
- size_t extra_len, int encrypt)
-{
- u8 *buf;
- size_t len;
- struct ieee80211_mgmt *mgmt;
-
- buf = os_malloc(sizeof(*mgmt) + 6 + extra_len);
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: failed to allocate buffer for "
- "auth frame");
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len = 24 + 6;
- os_memset(mgmt, 0, 24 + 6);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_AUTH);
- if (encrypt)
- mgmt->frame_control |= host_to_le16(WLAN_FC_ISWEP);
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->u.auth.auth_alg = host_to_le16(wpa_s->mlme.auth_alg);
- mgmt->u.auth.auth_transaction = host_to_le16(transaction);
- wpa_s->mlme.auth_transaction = transaction + 1;
- mgmt->u.auth.status_code = host_to_le16(0);
- if (extra) {
- os_memcpy(buf + len, extra, extra_len);
- len += extra_len;
- }
-
- ieee80211_sta_tx(wpa_s, buf, len);
- os_free(buf);
-}
-
-
-static void ieee80211_reschedule_timer(struct wpa_supplicant *wpa_s, int ms)
-{
- eloop_cancel_timeout(ieee80211_sta_timer, wpa_s, NULL);
- eloop_register_timeout(ms / 1000, 1000 * (ms % 1000),
- ieee80211_sta_timer, wpa_s, NULL);
-}
-
-
-static void ieee80211_authenticate(struct wpa_supplicant *wpa_s)
-{
- u8 *extra;
- size_t extra_len;
-
- wpa_s->mlme.auth_tries++;
- if (wpa_s->mlme.auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- wpa_printf(MSG_DEBUG, "MLME: authentication with AP " MACSTR
- " timed out", MAC2STR(wpa_s->bssid));
- return;
- }
-
- wpa_s->mlme.state = IEEE80211_AUTHENTICATE;
- wpa_printf(MSG_DEBUG, "MLME: authenticate with AP " MACSTR,
- MAC2STR(wpa_s->bssid));
-
- extra = NULL;
- extra_len = 0;
-
-#ifdef CONFIG_IEEE80211R
- if ((wpa_s->mlme.key_mgmt == KEY_MGMT_FT_802_1X ||
- wpa_s->mlme.key_mgmt == KEY_MGMT_FT_PSK) &&
- wpa_s->mlme.ft_ies) {
- struct ieee80211_sta_bss *bss;
- struct rsn_mdie *mdie = NULL;
- bss = ieee80211_bss_get(wpa_s, wpa_s->bssid);
- if (bss && bss->mdie_len >= 2 + sizeof(*mdie))
- mdie = (struct rsn_mdie *) (bss->mdie + 2);
- if (mdie &&
- os_memcmp(mdie->mobility_domain, wpa_s->mlme.current_md,
- MOBILITY_DOMAIN_ID_LEN) == 0) {
- wpa_printf(MSG_DEBUG, "MLME: Trying to use FT "
- "over-the-air");
- wpa_s->mlme.auth_alg = WLAN_AUTH_FT;
- extra = wpa_s->mlme.ft_ies;
- extra_len = wpa_s->mlme.ft_ies_len;
- }
- }
-#endif /* CONFIG_IEEE80211R */
-
- ieee80211_send_auth(wpa_s, 1, extra, extra_len, 0);
-
- ieee80211_reschedule_timer(wpa_s, IEEE80211_AUTH_TIMEOUT);
-}
-
-
-static void ieee80211_send_assoc(struct wpa_supplicant *wpa_s)
-{
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies, *buf;
- int i, len;
- u16 capab;
- struct ieee80211_sta_bss *bss;
- int wmm = 0;
- size_t blen, buflen;
-
- if (wpa_s->mlme.curr_rates == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: curr_rates not set for assoc");
- return;
- }
-
- buflen = sizeof(*mgmt) + 200 + wpa_s->mlme.extra_ie_len +
- wpa_s->mlme.ssid_len;
-#ifdef CONFIG_IEEE80211R
- if (wpa_s->mlme.ft_ies)
- buflen += wpa_s->mlme.ft_ies_len;
-#endif /* CONFIG_IEEE80211R */
- buf = os_malloc(buflen);
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: failed to allocate buffer for "
- "assoc frame");
- return;
- }
- blen = 0;
-
- capab = wpa_s->mlme.capab;
- if (wpa_s->mlme.phymode == HOSTAPD_MODE_IEEE80211G) {
- capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
- WLAN_CAPABILITY_SHORT_PREAMBLE;
- }
- bss = ieee80211_bss_get(wpa_s, wpa_s->bssid);
- if (bss) {
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- capab |= WLAN_CAPABILITY_PRIVACY;
- if (bss->wmm_ie) {
- wmm = 1;
- }
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- blen += 24;
- os_memset(mgmt, 0, 24);
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
-
- if (wpa_s->mlme.prev_bssid_set) {
- blen += 10;
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_REASSOC_REQ);
- mgmt->u.reassoc_req.capab_info = host_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval = host_to_le16(1);
- os_memcpy(mgmt->u.reassoc_req.current_ap,
- wpa_s->mlme.prev_bssid,
- ETH_ALEN);
- } else {
- blen += 4;
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_ASSOC_REQ);
- mgmt->u.assoc_req.capab_info = host_to_le16(capab);
- mgmt->u.assoc_req.listen_interval = host_to_le16(1);
- }
-
- /* SSID */
- ies = pos = buf + blen;
- blen += 2 + wpa_s->mlme.ssid_len;
- *pos++ = WLAN_EID_SSID;
- *pos++ = wpa_s->mlme.ssid_len;
- os_memcpy(pos, wpa_s->mlme.ssid, wpa_s->mlme.ssid_len);
-
- len = wpa_s->mlme.num_curr_rates;
- if (len > 8)
- len = 8;
- pos = buf + blen;
- blen += len + 2;
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = len;
- for (i = 0; i < len; i++)
- *pos++ = (u8) (wpa_s->mlme.curr_rates[i] / 5);
-
- if (wpa_s->mlme.num_curr_rates > len) {
- pos = buf + blen;
- blen += wpa_s->mlme.num_curr_rates - len + 2;
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = wpa_s->mlme.num_curr_rates - len;
- for (i = len; i < wpa_s->mlme.num_curr_rates; i++)
- *pos++ = (u8) (wpa_s->mlme.curr_rates[i] / 5);
- }
-
- if (wpa_s->mlme.extra_ie && wpa_s->mlme.auth_alg != WLAN_AUTH_FT) {
- pos = buf + blen;
- blen += wpa_s->mlme.extra_ie_len;
- os_memcpy(pos, wpa_s->mlme.extra_ie, wpa_s->mlme.extra_ie_len);
- }
-
-#ifdef CONFIG_IEEE80211R
- if ((wpa_s->mlme.key_mgmt == KEY_MGMT_FT_802_1X ||
- wpa_s->mlme.key_mgmt == KEY_MGMT_FT_PSK) &&
- wpa_s->mlme.auth_alg != WLAN_AUTH_FT &&
- bss && bss->mdie &&
- bss->mdie_len >= 2 + sizeof(struct rsn_mdie) &&
- bss->mdie[1] >= sizeof(struct rsn_mdie)) {
- pos = buf + blen;
- blen += 2 + sizeof(struct rsn_mdie);
- *pos++ = WLAN_EID_MOBILITY_DOMAIN;
- *pos++ = sizeof(struct rsn_mdie);
- os_memcpy(pos, bss->mdie + 2, MOBILITY_DOMAIN_ID_LEN);
- pos += MOBILITY_DOMAIN_ID_LEN;
- *pos++ = 0; /* FIX: copy from the target AP's MDIE */
- }
-
- if ((wpa_s->mlme.key_mgmt == KEY_MGMT_FT_802_1X ||
- wpa_s->mlme.key_mgmt == KEY_MGMT_FT_PSK) &&
- wpa_s->mlme.auth_alg == WLAN_AUTH_FT && wpa_s->mlme.ft_ies) {
- pos = buf + blen;
- os_memcpy(pos, wpa_s->mlme.ft_ies, wpa_s->mlme.ft_ies_len);
- pos += wpa_s->mlme.ft_ies_len;
- blen += wpa_s->mlme.ft_ies_len;
- }
-#endif /* CONFIG_IEEE80211R */
-
- if (wmm && wpa_s->mlme.wmm_enabled) {
- pos = buf + blen;
- blen += 9;
- *pos++ = WLAN_EID_VENDOR_SPECIFIC;
- *pos++ = 7; /* len */
- *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
- *pos++ = 0x50;
- *pos++ = 0xf2;
- *pos++ = 2; /* WMM */
- *pos++ = 0; /* WMM info */
- *pos++ = 1; /* WMM ver */
- *pos++ = 0;
- }
-
- os_free(wpa_s->mlme.assocreq_ies);
- wpa_s->mlme.assocreq_ies_len = (buf + blen) - ies;
- wpa_s->mlme.assocreq_ies = os_malloc(wpa_s->mlme.assocreq_ies_len);
- if (wpa_s->mlme.assocreq_ies) {
- os_memcpy(wpa_s->mlme.assocreq_ies, ies,
- wpa_s->mlme.assocreq_ies_len);
- }
-
- ieee80211_sta_tx(wpa_s, buf, blen);
- os_free(buf);
-}
-
-
-static void ieee80211_send_deauth(struct wpa_supplicant *wpa_s, u16 reason)
-{
- u8 *buf;
- size_t len;
- struct ieee80211_mgmt *mgmt;
-
- buf = os_zalloc(sizeof(*mgmt));
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: failed to allocate buffer for "
- "deauth frame");
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len = 24;
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_DEAUTH);
- len += 2;
- mgmt->u.deauth.reason_code = host_to_le16(reason);
-
- ieee80211_sta_tx(wpa_s, buf, len);
- os_free(buf);
-}
-
-
-static void ieee80211_send_disassoc(struct wpa_supplicant *wpa_s, u16 reason)
-{
- u8 *buf;
- size_t len;
- struct ieee80211_mgmt *mgmt;
-
- buf = os_zalloc(sizeof(*mgmt));
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: failed to allocate buffer for "
- "disassoc frame");
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len = 24;
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_DISASSOC);
- len += 2;
- mgmt->u.disassoc.reason_code = host_to_le16(reason);
-
- ieee80211_sta_tx(wpa_s, buf, len);
- os_free(buf);
-}
-
-
-static int ieee80211_privacy_mismatch(struct wpa_supplicant *wpa_s)
-{
- struct ieee80211_sta_bss *bss;
- int res = 0;
-
- if (wpa_s->mlme.mixed_cell ||
- wpa_s->mlme.key_mgmt != KEY_MGMT_NONE)
- return 0;
-
- bss = ieee80211_bss_get(wpa_s, wpa_s->bssid);
- if (bss == NULL)
- return 0;
-
- if (ieee80211_sta_wep_configured(wpa_s) !=
- !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
- res = 1;
-
- return res;
-}
-
-
-static void ieee80211_associate(struct wpa_supplicant *wpa_s)
-{
- wpa_s->mlme.assoc_tries++;
- if (wpa_s->mlme.assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- wpa_printf(MSG_DEBUG, "MLME: association with AP " MACSTR
- " timed out", MAC2STR(wpa_s->bssid));
- return;
- }
-
- wpa_s->mlme.state = IEEE80211_ASSOCIATE;
- wpa_printf(MSG_DEBUG, "MLME: associate with AP " MACSTR,
- MAC2STR(wpa_s->bssid));
- if (ieee80211_privacy_mismatch(wpa_s)) {
- wpa_printf(MSG_DEBUG, "MLME: mismatch in privacy "
- "configuration and mixed-cell disabled - abort "
- "association");
- return;
- }
-
- ieee80211_send_assoc(wpa_s);
-
- ieee80211_reschedule_timer(wpa_s, IEEE80211_ASSOC_TIMEOUT);
-}
-
-
-static void ieee80211_associated(struct wpa_supplicant *wpa_s)
-{
- int disassoc;
-
- /* TODO: start monitoring current AP signal quality and number of
- * missed beacons. Scan other channels every now and then and search
- * for better APs. */
- /* TODO: remove expired BSSes */
-
- wpa_s->mlme.state = IEEE80211_ASSOCIATED;
-
-#if 0 /* FIX */
- sta = sta_info_get(local, wpa_s->bssid);
- if (sta == NULL) {
- wpa_printf(MSG_DEBUG "MLME: No STA entry for own AP " MACSTR,
- MAC2STR(wpa_s->bssid));
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (wpa_s->mlme.probereq_poll) {
- wpa_printf(MSG_DEBUG "MLME: No ProbeResp from "
- "current AP " MACSTR " - assume "
- "out of range",
- MAC2STR(wpa_s->bssid));
- disassoc = 1;
- } else {
- ieee80211_send_probe_req(
- wpa_s->bssid,
- wpa_s->mlme.scan_ssid,
- wpa_s->mlme.scan_ssid_len);
- wpa_s->mlme.probereq_poll = 1;
- }
- } else {
- wpa_s->mlme.probereq_poll = 0;
- if (time_after(jiffies, wpa_s->mlme.last_probe +
- IEEE80211_PROBE_INTERVAL)) {
- wpa_s->mlme.last_probe = jiffies;
- ieee80211_send_probe_req(wpa_s->bssid,
- wpa_s->mlme.ssid,
- wpa_s->mlme.ssid_len);
- }
- }
- sta_info_release(local, sta);
- }
-#else
- disassoc = 0;
-#endif
- if (disassoc) {
- wpa_supplicant_event(wpa_s, EVENT_DISASSOC, NULL);
- ieee80211_reschedule_timer(wpa_s,
- IEEE80211_MONITORING_INTERVAL +
- 30000);
- } else {
- ieee80211_reschedule_timer(wpa_s,
- IEEE80211_MONITORING_INTERVAL);
- }
-}
-
-
-static void ieee80211_send_probe_req(struct wpa_supplicant *wpa_s,
- const u8 *dst,
- const u8 *ssid, size_t ssid_len)
-{
- u8 *buf;
- size_t len;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates;
- u8 *esupp_rates = NULL;
- int i;
-
- buf = os_malloc(sizeof(*mgmt) + 200 + wpa_s->mlme.extra_probe_ie_len);
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: failed to allocate buffer for "
- "probe request");
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len = 24;
- os_memset(mgmt, 0, 24);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_PROBE_REQ);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- if (dst) {
- os_memcpy(mgmt->da, dst, ETH_ALEN);
- os_memcpy(mgmt->bssid, dst, ETH_ALEN);
- } else {
- os_memset(mgmt->da, 0xff, ETH_ALEN);
- os_memset(mgmt->bssid, 0xff, ETH_ALEN);
- }
- pos = buf + len;
- len += 2 + ssid_len;
- *pos++ = WLAN_EID_SSID;
- *pos++ = ssid_len;
- os_memcpy(pos, ssid, ssid_len);
-
- supp_rates = buf + len;
- len += 2;
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- for (i = 0; i < wpa_s->mlme.num_curr_rates; i++) {
- if (esupp_rates) {
- pos = buf + len;
- len++;
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = pos;
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- len += 3;
- } else {
- pos = buf + len;
- len++;
- supp_rates[1]++;
- }
- *pos++ = wpa_s->mlme.curr_rates[i] / 5;
- }
-
- if (wpa_s->mlme.extra_probe_ie) {
- os_memcpy(pos, wpa_s->mlme.extra_probe_ie,
- wpa_s->mlme.extra_probe_ie_len);
- len += wpa_s->mlme.extra_probe_ie_len;
- }
-
- ieee80211_sta_tx(wpa_s, buf, len);
- os_free(buf);
-}
-
-
-static int ieee80211_sta_wep_configured(struct wpa_supplicant *wpa_s)
-{
-#if 0 /* FIX */
- if (sdata == NULL || sdata->default_key == NULL ||
- sdata->default_key->alg != ALG_WEP)
- return 0;
- return 1;
-#else
- return 0;
-#endif
-}
-
-
-static void ieee80211_auth_completed(struct wpa_supplicant *wpa_s)
-{
- wpa_printf(MSG_DEBUG, "MLME: authenticated");
- wpa_s->mlme.authenticated = 1;
- ieee80211_associate(wpa_s);
-}
-
-
-static void ieee80211_auth_challenge(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- u8 *pos;
- struct ieee802_11_elems elems;
-
- wpa_printf(MSG_DEBUG, "MLME: replying to auth challenge");
- pos = mgmt->u.auth.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems, 0)
- == ParseFailed) {
- wpa_printf(MSG_DEBUG, "MLME: failed to parse Auth(challenge)");
- return;
- }
- if (elems.challenge == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: no challenge IE in shared key "
- "auth frame");
- return;
- }
- ieee80211_send_auth(wpa_s, 3, elems.challenge - 2,
- elems.challenge_len + 2, 1);
-}
-
-
-static void ieee80211_rx_mgmt_auth(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct wpa_ssid *ssid = wpa_s->current_ssid;
- u16 auth_alg, auth_transaction, status_code;
- int adhoc;
-
- adhoc = ssid && ssid->mode == WPAS_MODE_IBSS;
-
- if (wpa_s->mlme.state != IEEE80211_AUTHENTICATE && !adhoc) {
- wpa_printf(MSG_DEBUG, "MLME: authentication frame received "
- "from " MACSTR ", but not in authenticate state - "
- "ignored", MAC2STR(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- wpa_printf(MSG_DEBUG, "MLME: too short (%lu) authentication "
- "frame received from " MACSTR " - ignored",
- (unsigned long) len, MAC2STR(mgmt->sa));
- return;
- }
-
- if (!adhoc && os_memcmp(wpa_s->bssid, mgmt->sa, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: authentication frame received "
- "from unknown AP (SA=" MACSTR " BSSID=" MACSTR
- ") - ignored",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid));
- return;
- }
-
- if (adhoc && os_memcmp(wpa_s->bssid, mgmt->bssid, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: authentication frame received "
- "from unknown BSSID (SA=" MACSTR " BSSID=" MACSTR
- ") - ignored",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid));
- return;
- }
-
- auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
- auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
- status_code = le_to_host16(mgmt->u.auth.status_code);
-
- wpa_printf(MSG_DEBUG, "MLME: RX authentication from " MACSTR
- " (alg=%d transaction=%d status=%d)",
- MAC2STR(mgmt->sa), auth_alg, auth_transaction, status_code);
-
- if (adhoc) {
- /* IEEE 802.11 standard does not require authentication in IBSS
- * networks and most implementations do not seem to use it.
- * However, try to reply to authentication attempts if someone
- * has actually implemented this.
- * TODO: Could implement shared key authentication. */
- if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) {
- wpa_printf(MSG_DEBUG, "MLME: unexpected IBSS "
- "authentication frame (alg=%d "
- "transaction=%d)",
- auth_alg, auth_transaction);
- return;
- }
- ieee80211_send_auth(wpa_s, 2, NULL, 0, 0);
- }
-
- if (auth_alg != wpa_s->mlme.auth_alg ||
- auth_transaction != wpa_s->mlme.auth_transaction) {
- wpa_printf(MSG_DEBUG, "MLME: unexpected authentication frame "
- "(alg=%d transaction=%d)",
- auth_alg, auth_transaction);
- return;
- }
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- wpa_printf(MSG_DEBUG, "MLME: AP denied authentication "
- "(auth_alg=%d code=%d)", wpa_s->mlme.auth_alg,
- status_code);
- if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
- const int num_algs = 3;
- u8 algs[num_algs];
- int i, pos;
- algs[0] = algs[1] = algs[2] = 0xff;
- if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_OPEN)
- algs[0] = WLAN_AUTH_OPEN;
- if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_SHARED)
- algs[1] = WLAN_AUTH_SHARED_KEY;
- if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_LEAP)
- algs[2] = WLAN_AUTH_LEAP;
- if (wpa_s->mlme.auth_alg == WLAN_AUTH_OPEN)
- pos = 0;
- else if (wpa_s->mlme.auth_alg == WLAN_AUTH_SHARED_KEY)
- pos = 1;
- else
- pos = 2;
- for (i = 0; i < num_algs; i++) {
- pos++;
- if (pos >= num_algs)
- pos = 0;
- if (algs[pos] == wpa_s->mlme.auth_alg ||
- algs[pos] == 0xff)
- continue;
- if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
- !ieee80211_sta_wep_configured(wpa_s))
- continue;
- wpa_s->mlme.auth_alg = algs[pos];
- wpa_printf(MSG_DEBUG, "MLME: set auth_alg=%d "
- "for next try",
- wpa_s->mlme.auth_alg);
- break;
- }
- }
- return;
- }
-
- switch (wpa_s->mlme.auth_alg) {
- case WLAN_AUTH_OPEN:
- case WLAN_AUTH_LEAP:
- ieee80211_auth_completed(wpa_s);
- break;
- case WLAN_AUTH_SHARED_KEY:
- if (wpa_s->mlme.auth_transaction == 4)
- ieee80211_auth_completed(wpa_s);
- else
- ieee80211_auth_challenge(wpa_s, mgmt, len,
- rx_status);
- break;
-#ifdef CONFIG_IEEE80211R
- case WLAN_AUTH_FT:
- {
- union wpa_event_data data;
- struct wpabuf *ric = NULL;
- os_memset(&data, 0, sizeof(data));
- data.ft_ies.ies = mgmt->u.auth.variable;
- data.ft_ies.ies_len = len -
- (mgmt->u.auth.variable - (u8 *) mgmt);
- os_memcpy(data.ft_ies.target_ap, wpa_s->bssid, ETH_ALEN);
- if (os_strcmp(wpa_s->driver->name, "test") == 0 &&
- wpa_s->mlme.wmm_enabled) {
- ric = wpabuf_alloc(200);
- if (ric) {
- /* Build simple RIC-Request: RDIE | TSPEC */
-
- /* RIC Data (RDIE) */
- wpabuf_put_u8(ric, WLAN_EID_RIC_DATA);
- wpabuf_put_u8(ric, 4);
- wpabuf_put_u8(ric, 0); /* RDIE Identifier */
- wpabuf_put_u8(ric, 1); /* Resource Descriptor
- * Count */
- wpabuf_put_le16(ric, 0); /* Status Code */
-
- /* WMM TSPEC */
- ieee80211_build_tspec(ric);
-
- data.ft_ies.ric_ies = wpabuf_head(ric);
- data.ft_ies.ric_ies_len = wpabuf_len(ric);
- }
- }
-
- wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &data);
- wpabuf_free(ric);
- ieee80211_auth_completed(wpa_s);
- break;
- }
-#endif /* CONFIG_IEEE80211R */
- }
-}
-
-
-static void ieee80211_rx_mgmt_deauth(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- wpa_printf(MSG_DEBUG, "MLME: too short (%lu) deauthentication "
- "frame received from " MACSTR " - ignored",
- (unsigned long) len, MAC2STR(mgmt->sa));
- return;
- }
-
- if (os_memcmp(wpa_s->bssid, mgmt->sa, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: deauthentication frame received "
- "from unknown AP (SA=" MACSTR " BSSID=" MACSTR
- ") - ignored",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid));
- return;
- }
-
- reason_code = le_to_host16(mgmt->u.deauth.reason_code);
-
- wpa_printf(MSG_DEBUG, "MLME: RX deauthentication from " MACSTR
- " (reason=%d)", MAC2STR(mgmt->sa), reason_code);
-
- if (wpa_s->mlme.authenticated)
- wpa_printf(MSG_DEBUG, "MLME: deauthenticated");
-
- if (wpa_s->mlme.state == IEEE80211_AUTHENTICATE ||
- wpa_s->mlme.state == IEEE80211_ASSOCIATE ||
- wpa_s->mlme.state == IEEE80211_ASSOCIATED) {
- wpa_s->mlme.state = IEEE80211_AUTHENTICATE;
- ieee80211_reschedule_timer(wpa_s,
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_associated(wpa_s, 0);
- wpa_s->mlme.authenticated = 0;
-}
-
-
-static void ieee80211_rx_mgmt_disassoc(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- wpa_printf(MSG_DEBUG, "MLME: too short (%lu) disassociation "
- "frame received from " MACSTR " - ignored",
- (unsigned long) len, MAC2STR(mgmt->sa));
- return;
- }
-
- if (os_memcmp(wpa_s->bssid, mgmt->sa, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: disassociation frame received "
- "from unknown AP (SA=" MACSTR " BSSID=" MACSTR
- ") - ignored",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid));
- return;
- }
-
- reason_code = le_to_host16(mgmt->u.disassoc.reason_code);
-
- wpa_printf(MSG_DEBUG, "MLME: RX disassociation from " MACSTR
- " (reason=%d)", MAC2STR(mgmt->sa), reason_code);
-
- if (wpa_s->mlme.associated)
- wpa_printf(MSG_DEBUG, "MLME: disassociated");
-
- if (wpa_s->mlme.state == IEEE80211_ASSOCIATED) {
- wpa_s->mlme.state = IEEE80211_ASSOCIATE;
- ieee80211_reschedule_timer(wpa_s,
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_associated(wpa_s, 0);
-}
-
-
-static void ieee80211_build_tspec(struct wpabuf *buf)
-{
- struct wmm_tspec_element *tspec;
- int tid, up;
-
- tspec = wpabuf_put(buf, sizeof(*tspec));
- tspec->eid = WLAN_EID_VENDOR_SPECIFIC;
- tspec->length = sizeof(*tspec) - 2;
- tspec->oui[0] = 0x00;
- tspec->oui[1] = 0x50;
- tspec->oui[2] = 0xf2;
- tspec->oui_type = 2;
- tspec->oui_subtype = 2;
- tspec->version = 1;
-
- tid = 1;
- up = 6; /* Voice */
- tspec->ts_info[0] = (tid << 1) |
- (WMM_TSPEC_DIRECTION_BI_DIRECTIONAL << 5) |
- BIT(7);
- tspec->ts_info[1] = up << 3;
- tspec->nominal_msdu_size = host_to_le16(1530);
- tspec->mean_data_rate = host_to_le32(128000); /* bits per second */
- tspec->minimum_phy_rate = host_to_le32(6000000);
- tspec->surplus_bandwidth_allowance = host_to_le16(0x3000); /* 150% */
-}
-
-
-static void ieee80211_tx_addts(struct wpa_supplicant *wpa_s)
-{
- struct wpabuf *buf;
- struct ieee80211_mgmt *mgmt;
- size_t alen;
-
- wpa_printf(MSG_DEBUG, "MLME: Send ADDTS Request for Voice TSPEC");
- mgmt = NULL;
- alen = mgmt->u.action.u.wmm_action.variable - (u8 *) mgmt;
-
- buf = wpabuf_alloc(alen + sizeof(struct wmm_tspec_element));
- if (buf == NULL)
- return;
-
- mgmt = wpabuf_put(buf, alen);
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_ACTION);
- mgmt->u.action.category = WLAN_ACTION_WMM;
- mgmt->u.action.u.wmm_action.action_code = WMM_ACTION_CODE_ADDTS_REQ;
- mgmt->u.action.u.wmm_action.dialog_token = 1;
- mgmt->u.action.u.wmm_action.status_code = 0;
-
- ieee80211_build_tspec(buf);
-
- ieee80211_sta_tx(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
- wpabuf_free(buf);
-}
-
-
-static void ieee80211_rx_mgmt_assoc_resp(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status,
- int reassoc)
-{
- u8 rates[32];
- size_t rates_len;
- u16 capab_info, status_code, aid;
- struct ieee802_11_elems elems;
- u8 *pos;
-
- /* AssocResp and ReassocResp have identical structure, so process both
- * of them in this function. */
-
- if (wpa_s->mlme.state != IEEE80211_ASSOCIATE) {
- wpa_printf(MSG_DEBUG, "MLME: association frame received from "
- MACSTR ", but not in associate state - ignored",
- MAC2STR(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- wpa_printf(MSG_DEBUG, "MLME: too short (%lu) association "
- "frame received from " MACSTR " - ignored",
- (unsigned long) len, MAC2STR(mgmt->sa));
- return;
- }
-
- if (os_memcmp(wpa_s->bssid, mgmt->sa, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: association frame received from "
- "unknown AP (SA=" MACSTR " BSSID=" MACSTR ") - "
- "ignored", MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid));
- return;
- }
-
- capab_info = le_to_host16(mgmt->u.assoc_resp.capab_info);
- status_code = le_to_host16(mgmt->u.assoc_resp.status_code);
- aid = le_to_host16(mgmt->u.assoc_resp.aid);
- if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
- wpa_printf(MSG_DEBUG, "MLME: invalid aid value %d; bits 15:14 "
- "not set", aid);
- aid &= ~(BIT(15) | BIT(14));
-
- wpa_printf(MSG_DEBUG, "MLME: RX %sssocResp from " MACSTR
- " (capab=0x%x status=%d aid=%d)",
- reassoc ? "Rea" : "A", MAC2STR(mgmt->sa),
- capab_info, status_code, aid);
-
- pos = mgmt->u.assoc_resp.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems, 0)
- == ParseFailed) {
- wpa_printf(MSG_DEBUG, "MLME: failed to parse AssocResp");
- return;
- }
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- wpa_printf(MSG_DEBUG, "MLME: AP denied association (code=%d)",
- status_code);
-#ifdef CONFIG_IEEE80211W
- if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY &&
- elems.timeout_int && elems.timeout_int_len == 5 &&
- elems.timeout_int[0] == WLAN_TIMEOUT_ASSOC_COMEBACK) {
- u32 tu, ms;
- tu = WPA_GET_LE32(elems.timeout_int + 1);
- ms = tu * 1024 / 1000;
- wpa_printf(MSG_DEBUG, "MLME: AP rejected association "
- "temporarily; comeback duration %u TU "
- "(%u ms)", tu, ms);
- if (ms > IEEE80211_ASSOC_TIMEOUT) {
- wpa_printf(MSG_DEBUG, "MLME: Update timer "
- "based on comeback duration");
- ieee80211_reschedule_timer(wpa_s, ms);
- }
- }
-#endif /* CONFIG_IEEE80211W */
- return;
- }
-
- if (elems.supp_rates == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: no SuppRates element in "
- "AssocResp");
- return;
- }
-
- if (wpa_s->mlme.auth_alg == WLAN_AUTH_FT) {
- if (!reassoc) {
- wpa_printf(MSG_DEBUG, "MLME: AP tried to use "
- "association, not reassociation, response "
- "with FT");
- return;
- }
- if (wpa_ft_validate_reassoc_resp(
- wpa_s->wpa, pos, len - (pos - (u8 *) mgmt),
- mgmt->sa) < 0) {
- wpa_printf(MSG_DEBUG, "MLME: FT validation of Reassoc"
- "Resp failed");
- return;
- }
- } else if (wpa_sm_set_ft_params(wpa_s->wpa, pos,
- len - (pos - (u8 *) mgmt)) < 0)
- return;
-
- wpa_printf(MSG_DEBUG, "MLME: associated");
- wpa_s->mlme.aid = aid;
- wpa_s->mlme.ap_capab = capab_info;
-
- os_free(wpa_s->mlme.assocresp_ies);
- wpa_s->mlme.assocresp_ies_len = len - (pos - (u8 *) mgmt);
- wpa_s->mlme.assocresp_ies = os_malloc(wpa_s->mlme.assocresp_ies_len);
- if (wpa_s->mlme.assocresp_ies) {
- os_memcpy(wpa_s->mlme.assocresp_ies, pos,
- wpa_s->mlme.assocresp_ies_len);
- }
-
- ieee80211_set_associated(wpa_s, 1);
-
- rates_len = elems.supp_rates_len;
- if (rates_len > sizeof(rates))
- rates_len = sizeof(rates);
- os_memcpy(rates, elems.supp_rates, rates_len);
- if (elems.ext_supp_rates) {
- size_t _len = elems.ext_supp_rates_len;
- if (_len > sizeof(rates) - rates_len)
- _len = sizeof(rates) - rates_len;
- os_memcpy(rates + rates_len, elems.ext_supp_rates, _len);
- rates_len += _len;
- }
-
- if (wpa_drv_set_bssid(wpa_s, wpa_s->bssid) < 0) {
- wpa_printf(MSG_DEBUG, "MLME: failed to set BSSID for the "
- "netstack");
- }
- if (wpa_drv_set_ssid(wpa_s, wpa_s->mlme.ssid, wpa_s->mlme.ssid_len) <
- 0) {
- wpa_printf(MSG_DEBUG, "MLME: failed to set SSID for the "
- "netstack");
- }
-
- /* Remove STA entry before adding a new one just in case to avoid
- * problems with existing configuration (e.g., keys). */
- wpa_drv_mlme_remove_sta(wpa_s, wpa_s->bssid);
- if (wpa_drv_mlme_add_sta(wpa_s, wpa_s->bssid, rates, rates_len) < 0) {
- wpa_printf(MSG_DEBUG, "MLME: failed to add STA entry to the "
- "netstack");
- }
-
- if (elems.wmm && wpa_s->mlme.wmm_enabled)
- ieee80211_sta_wmm_params(wpa_s, elems.wmm, elems.wmm_len);
-
- ieee80211_associated(wpa_s);
-
- if (wpa_s->mlme.auth_alg != WLAN_AUTH_FT &&
- os_strcmp(wpa_s->driver->name, "test") == 0 &&
- elems.wmm && wpa_s->mlme.wmm_enabled) {
- /* Test WMM-AC - send ADDTS for WMM TSPEC */
- ieee80211_tx_addts(wpa_s);
- }
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_bss_hash_add(struct wpa_supplicant *wpa_s,
- struct ieee80211_sta_bss *bss)
-{
- bss->hnext = wpa_s->mlme.sta_bss_hash[STA_HASH(bss->bssid)];
- wpa_s->mlme.sta_bss_hash[STA_HASH(bss->bssid)] = bss;
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_bss_hash_del(struct wpa_supplicant *wpa_s,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_sta_bss *b, *prev = NULL;
- b = wpa_s->mlme.sta_bss_hash[STA_HASH(bss->bssid)];
- while (b) {
- if (b == bss) {
- if (prev == NULL) {
- wpa_s->mlme.sta_bss_hash[STA_HASH(bss->bssid)]
- = bss->hnext;
- } else {
- prev->hnext = bss->hnext;
- }
- break;
- }
- prev = b;
- b = b->hnext;
- }
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_bss_add(struct wpa_supplicant *wpa_s, const u8 *bssid)
-{
- struct ieee80211_sta_bss *bss;
-
- bss = os_zalloc(sizeof(*bss));
- if (bss == NULL)
- return NULL;
- os_memcpy(bss->bssid, bssid, ETH_ALEN);
-
- /* TODO: order by RSSI? */
- bss->next = wpa_s->mlme.sta_bss_list;
- wpa_s->mlme.sta_bss_list = bss;
- __ieee80211_bss_hash_add(wpa_s, bss);
- return bss;
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid)
-{
- struct ieee80211_sta_bss *bss;
-
- bss = wpa_s->mlme.sta_bss_hash[STA_HASH(bssid)];
- while (bss) {
- if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0)
- break;
- bss = bss->hnext;
- }
- return bss;
-}
-
-
-static void ieee80211_bss_free(struct wpa_supplicant *wpa_s,
- struct ieee80211_sta_bss *bss)
-{
- __ieee80211_bss_hash_del(wpa_s, bss);
- os_free(bss->ie);
- os_free(bss->wpa_ie);
- os_free(bss->rsn_ie);
- os_free(bss->wmm_ie);
- os_free(bss->mdie);
- os_free(bss);
-}
-
-
-static void ieee80211_bss_list_deinit(struct wpa_supplicant *wpa_s)
-{
- struct ieee80211_sta_bss *bss, *prev;
-
- bss = wpa_s->mlme.sta_bss_list;
- wpa_s->mlme.sta_bss_list = NULL;
- while (bss) {
- prev = bss;
- bss = bss->next;
- ieee80211_bss_free(wpa_s, prev);
- }
-}
-
-
-static void ieee80211_bss_info(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status,
- int beacon)
-{
- struct ieee802_11_elems elems;
- size_t baselen;
- int channel, invalid = 0, clen;
- struct ieee80211_sta_bss *bss;
- u64 timestamp;
- u8 *pos, *ie_pos;
- size_t ie_len;
-
- if (!beacon && os_memcmp(mgmt->da, wpa_s->own_addr, ETH_ALEN))
- return; /* ignore ProbeResp to foreign address */
-
-#if 0
- wpa_printf(MSG_MSGDUMP, "MLME: RX %s from " MACSTR " to " MACSTR,
- beacon ? "Beacon" : "Probe Response",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->da));
-#endif
-
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- pos = mgmt->u.beacon.timestamp;
- timestamp = WPA_GET_LE64(pos);
-
-#if 0 /* FIX */
- if (local->conf.mode == IW_MODE_ADHOC && beacon &&
- os_memcmp(mgmt->bssid, local->bssid, ETH_ALEN) == 0) {
-#ifdef IEEE80211_IBSS_DEBUG
- static unsigned long last_tsf_debug = 0;
- u64 tsf;
- if (local->hw->get_tsf)
- tsf = local->hw->get_tsf(local->mdev);
- else
- tsf = -1LLU;
- if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
- wpa_printf(MSG_DEBUG, "RX beacon SA=" MACSTR " BSSID="
- MACSTR " TSF=0x%llx BCN=0x%llx diff=%lld "
- "@%ld",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->bssid),
- tsf, timestamp, tsf - timestamp, jiffies);
- last_tsf_debug = jiffies;
- }
-#endif /* IEEE80211_IBSS_DEBUG */
- }
-#endif
-
- ie_pos = mgmt->u.beacon.variable;
- ie_len = len - baselen;
- if (ieee802_11_parse_elems(ie_pos, ie_len, &elems, 0) == ParseFailed)
- invalid = 1;
-
-#if 0 /* FIX */
- if (local->conf.mode == IW_MODE_ADHOC && elems.supp_rates &&
- os_memcmp(mgmt->bssid, local->bssid, ETH_ALEN) == 0 &&
- (sta = sta_info_get(local, mgmt->sa))) {
- struct ieee80211_rate *rates;
- size_t num_rates;
- u32 supp_rates, prev_rates;
- int i, j, oper_mode;
-
- rates = local->curr_rates;
- num_rates = local->num_curr_rates;
- oper_mode = wpa_s->mlme.sta_scanning ?
- local->scan_oper_phymode : local->conf.phymode;
- for (i = 0; i < local->hw->num_modes; i++) {
- struct ieee80211_hw_modes *mode = &local->hw->modes[i];
- if (oper_mode == mode->mode) {
- rates = mode->rates;
- num_rates = mode->num_rates;
- break;
- }
- }
-
- supp_rates = 0;
- for (i = 0; i < elems.supp_rates_len +
- elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- int own_rate;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates
- [i - elems.supp_rates_len];
- own_rate = 5 * (rate & 0x7f);
- if (oper_mode == MODE_ATHEROS_TURBO)
- own_rate *= 2;
- for (j = 0; j < num_rates; j++)
- if (rates[j].rate == own_rate)
- supp_rates |= BIT(j);
- }
-
- prev_rates = sta->supp_rates;
- sta->supp_rates &= supp_rates;
- if (sta->supp_rates == 0) {
- /* No matching rates - this should not really happen.
- * Make sure that at least one rate is marked
- * supported to avoid issues with TX rate ctrl. */
- sta->supp_rates = wpa_s->mlme.supp_rates_bits;
- }
- if (sta->supp_rates != prev_rates) {
- wpa_printf(MSG_DEBUG, "MLME: updated supp_rates set "
- "for " MACSTR " based on beacon info "
- "(0x%x & 0x%x -> 0x%x)",
- MAC2STR(sta->addr), prev_rates,
- supp_rates, sta->supp_rates);
- }
- sta_info_release(local, sta);
- }
-#endif
-
- if (elems.ssid == NULL)
- return;
-
- if (elems.ds_params && elems.ds_params_len == 1)
- channel = elems.ds_params[0];
- else
- channel = rx_status->channel;
-
- bss = ieee80211_bss_get(wpa_s, mgmt->bssid);
- if (bss == NULL) {
- bss = ieee80211_bss_add(wpa_s, mgmt->bssid);
- if (bss == NULL)
- return;
- } else {
-#if 0
- /* TODO: order by RSSI? */
- spin_lock_bh(&local->sta_bss_lock);
- list_move_tail(&bss->list, &local->sta_bss_list);
- spin_unlock_bh(&local->sta_bss_lock);
-#endif
- }
-
- if (bss->probe_resp && beacon) {
- /* Do not allow beacon to override data from Probe Response. */
- return;
- }
-
- bss->beacon_int = le_to_host16(mgmt->u.beacon.beacon_int);
- bss->capability = le_to_host16(mgmt->u.beacon.capab_info);
-
- if (bss->ie == NULL || bss->ie_len < ie_len) {
- os_free(bss->ie);
- bss->ie = os_malloc(ie_len);
- }
- if (bss->ie) {
- os_memcpy(bss->ie, ie_pos, ie_len);
- bss->ie_len = ie_len;
- }
-
- if (elems.ssid && elems.ssid_len <= MAX_SSID_LEN) {
- os_memcpy(bss->ssid, elems.ssid, elems.ssid_len);
- bss->ssid_len = elems.ssid_len;
- }
-
- bss->supp_rates_len = 0;
- if (elems.supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.supp_rates_len)
- clen = elems.supp_rates_len;
- os_memcpy(&bss->supp_rates[bss->supp_rates_len],
- elems.supp_rates, clen);
- bss->supp_rates_len += clen;
- }
- if (elems.ext_supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.ext_supp_rates_len)
- clen = elems.ext_supp_rates_len;
- os_memcpy(&bss->supp_rates[bss->supp_rates_len],
- elems.ext_supp_rates, clen);
- bss->supp_rates_len += clen;
- }
-
- if (elems.wpa_ie &&
- (bss->wpa_ie == NULL || bss->wpa_ie_len != elems.wpa_ie_len ||
- os_memcmp(bss->wpa_ie, elems.wpa_ie, elems.wpa_ie_len))) {
- os_free(bss->wpa_ie);
- bss->wpa_ie = os_malloc(elems.wpa_ie_len + 2);
- if (bss->wpa_ie) {
- os_memcpy(bss->wpa_ie, elems.wpa_ie - 2,
- elems.wpa_ie_len + 2);
- bss->wpa_ie_len = elems.wpa_ie_len + 2;
- } else
- bss->wpa_ie_len = 0;
- } else if (!elems.wpa_ie && bss->wpa_ie) {
- os_free(bss->wpa_ie);
- bss->wpa_ie = NULL;
- bss->wpa_ie_len = 0;
- }
-
- if (elems.rsn_ie &&
- (bss->rsn_ie == NULL || bss->rsn_ie_len != elems.rsn_ie_len ||
- os_memcmp(bss->rsn_ie, elems.rsn_ie, elems.rsn_ie_len))) {
- os_free(bss->rsn_ie);
- bss->rsn_ie = os_malloc(elems.rsn_ie_len + 2);
- if (bss->rsn_ie) {
- os_memcpy(bss->rsn_ie, elems.rsn_ie - 2,
- elems.rsn_ie_len + 2);
- bss->rsn_ie_len = elems.rsn_ie_len + 2;
- } else
- bss->rsn_ie_len = 0;
- } else if (!elems.rsn_ie && bss->rsn_ie) {
- os_free(bss->rsn_ie);
- bss->rsn_ie = NULL;
- bss->rsn_ie_len = 0;
- }
-
- if (elems.wmm &&
- (bss->wmm_ie == NULL || bss->wmm_ie_len != elems.wmm_len ||
- os_memcmp(bss->wmm_ie, elems.wmm, elems.wmm_len))) {
- os_free(bss->wmm_ie);
- bss->wmm_ie = os_malloc(elems.wmm_len + 2);
- if (bss->wmm_ie) {
- os_memcpy(bss->wmm_ie, elems.wmm - 2,
- elems.wmm_len + 2);
- bss->wmm_ie_len = elems.wmm_len + 2;
- } else
- bss->wmm_ie_len = 0;
- } else if (!elems.wmm && bss->wmm_ie) {
- os_free(bss->wmm_ie);
- bss->wmm_ie = NULL;
- bss->wmm_ie_len = 0;
- }
-
-#ifdef CONFIG_IEEE80211R
- if (elems.mdie &&
- (bss->mdie == NULL || bss->mdie_len != elems.mdie_len ||
- os_memcmp(bss->mdie, elems.mdie, elems.mdie_len))) {
- os_free(bss->mdie);
- bss->mdie = os_malloc(elems.mdie_len + 2);
- if (bss->mdie) {
- os_memcpy(bss->mdie, elems.mdie - 2,
- elems.mdie_len + 2);
- bss->mdie_len = elems.mdie_len + 2;
- } else
- bss->mdie_len = 0;
- } else if (!elems.mdie && bss->mdie) {
- os_free(bss->mdie);
- bss->mdie = NULL;
- bss->mdie_len = 0;
- }
-#endif /* CONFIG_IEEE80211R */
-
- bss->hw_mode = wpa_s->mlme.phymode;
- bss->channel = channel;
- bss->freq = wpa_s->mlme.freq;
- if (channel != wpa_s->mlme.channel &&
- (wpa_s->mlme.phymode == HOSTAPD_MODE_IEEE80211G ||
- wpa_s->mlme.phymode == HOSTAPD_MODE_IEEE80211B) &&
- channel >= 1 && channel <= 14) {
- static const int freq_list[] = {
- 2412, 2417, 2422, 2427, 2432, 2437, 2442,
- 2447, 2452, 2457, 2462, 2467, 2472, 2484
- };
- /* IEEE 802.11g/b mode can receive packets from neighboring
- * channels, so map the channel into frequency. */
- bss->freq = freq_list[channel - 1];
- }
- bss->timestamp = timestamp;
- os_get_time(&bss->last_update);
- bss->rssi = rx_status->ssi;
- if (!beacon)
- bss->probe_resp++;
-}
-
-
-static void ieee80211_rx_mgmt_probe_resp(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- ieee80211_bss_info(wpa_s, mgmt, len, rx_status, 0);
-}
-
-
-static void ieee80211_rx_mgmt_beacon(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- int use_protection;
- size_t baselen;
- struct ieee802_11_elems elems;
-
- ieee80211_bss_info(wpa_s, mgmt, len, rx_status, 1);
-
- if (!wpa_s->mlme.associated ||
- os_memcmp(wpa_s->bssid, mgmt->bssid, ETH_ALEN) != 0)
- return;
-
- /* Process beacon from the current BSS */
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
- &elems, 0) == ParseFailed)
- return;
-
- use_protection = 0;
- if (elems.erp_info && elems.erp_info_len >= 1) {
- use_protection =
- (elems.erp_info[0] & ERP_INFO_USE_PROTECTION) != 0;
- }
-
- if (use_protection != !!wpa_s->mlme.use_protection) {
- wpa_printf(MSG_DEBUG, "MLME: CTS protection %s (BSSID=" MACSTR
- ")",
- use_protection ? "enabled" : "disabled",
- MAC2STR(wpa_s->bssid));
- wpa_s->mlme.use_protection = use_protection ? 1 : 0;
- wpa_s->mlme.cts_protect_erp_frames = use_protection;
- }
-
- if (elems.wmm && wpa_s->mlme.wmm_enabled) {
- ieee80211_sta_wmm_params(wpa_s, elems.wmm,
- elems.wmm_len);
- }
-}
-
-
-static void ieee80211_rx_mgmt_probe_req(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- int tx_last_beacon, adhoc;
-#if 0 /* FIX */
- struct ieee80211_mgmt *resp;
-#endif
- u8 *pos, *end;
- struct wpa_ssid *ssid = wpa_s->current_ssid;
-
- adhoc = ssid && ssid->mode == WPAS_MODE_IBSS;
-
- if (!adhoc || wpa_s->mlme.state != IEEE80211_IBSS_JOINED ||
- len < 24 + 2 || wpa_s->mlme.probe_resp == NULL)
- return;
-
-#if 0 /* FIX */
- if (local->hw->tx_last_beacon)
- tx_last_beacon = local->hw->tx_last_beacon(local->mdev);
- else
-#endif
- tx_last_beacon = 1;
-
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, "MLME: RX ProbeReq SA=" MACSTR " DA=" MACSTR
- " BSSID=" MACSTR " (tx_last_beacon=%d)",
- MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
- MAC2STR(mgmt->bssid), tx_last_beacon);
-#endif /* IEEE80211_IBSS_DEBUG */
-
- if (!tx_last_beacon)
- return;
-
- if (os_memcmp(mgmt->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
- os_memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
- return;
-
- end = ((u8 *) mgmt) + len;
- pos = mgmt->u.probe_req.variable;
- if (pos[0] != WLAN_EID_SSID ||
- pos + 2 + pos[1] > end) {
- wpa_printf(MSG_DEBUG, "MLME: Invalid SSID IE in ProbeReq from "
- MACSTR, MAC2STR(mgmt->sa));
- return;
- }
- if (pos[1] != 0 &&
- (pos[1] != wpa_s->mlme.ssid_len ||
- os_memcmp(pos + 2, wpa_s->mlme.ssid, wpa_s->mlme.ssid_len) != 0))
- {
- /* Ignore ProbeReq for foreign SSID */
- return;
- }
-
-#if 0 /* FIX */
- /* Reply with ProbeResp */
- skb = skb_copy(wpa_s->mlme.probe_resp, GFP_ATOMIC);
- if (skb == NULL)
- return;
-
- resp = (struct ieee80211_mgmt *) skb->data;
- os_memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, "MLME: Sending ProbeResp to " MACSTR,
- MAC2STR(resp->da));
-#endif /* IEEE80211_IBSS_DEBUG */
- ieee80211_sta_tx(wpa_s, skb, 0, 1);
-#endif
-}
-
-
-#ifdef CONFIG_IEEE80211R
-static void ieee80211_rx_mgmt_ft_action(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- union wpa_event_data data;
- u16 status;
- u8 *sta_addr, *target_ap_addr;
-
- if (len < 24 + 1 + sizeof(mgmt->u.action.u.ft_action_resp)) {
- wpa_printf(MSG_DEBUG, "MLME: Too short FT Action frame");
- return;
- }
-
- /*
- * Only FT Action Response is needed for now since reservation
- * protocol is not supported.
- */
- if (mgmt->u.action.u.ft_action_resp.action != 2) {
- wpa_printf(MSG_DEBUG, "MLME: Unexpected FT Action %d",
- mgmt->u.action.u.ft_action_resp.action);
- return;
- }
-
- status = le_to_host16(mgmt->u.action.u.ft_action_resp.status_code);
- sta_addr = mgmt->u.action.u.ft_action_resp.sta_addr;
- target_ap_addr = mgmt->u.action.u.ft_action_resp.target_ap_addr;
- wpa_printf(MSG_DEBUG, "MLME: Received FT Action Response: STA " MACSTR
- " TargetAP " MACSTR " Status Code %d",
- MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
- if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: Foreign STA Address " MACSTR
- " in FT Action Response", MAC2STR(sta_addr));
- return;
- }
-
- if (status) {
- wpa_printf(MSG_DEBUG, "MLME: FT Action Response indicates "
- "failure (status code %d)", status);
- /* TODO: report error to FT code(?) */
- return;
- }
-
- os_memset(&data, 0, sizeof(data));
- data.ft_ies.ies = mgmt->u.action.u.ft_action_resp.variable;
- data.ft_ies.ies_len = len - (mgmt->u.action.u.ft_action_resp.variable -
- (u8 *) mgmt);
- data.ft_ies.ft_action = 1;
- os_memcpy(data.ft_ies.target_ap, target_ap_addr, ETH_ALEN);
- wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &data);
- /* TODO: should only re-associate, if EVENT_FT_RESPONSE was processed
- * successfully */
- wpa_s->mlme.prev_bssid_set = 1;
- wpa_s->mlme.auth_alg = WLAN_AUTH_FT;
- os_memcpy(wpa_s->mlme.prev_bssid, wpa_s->bssid, ETH_ALEN);
- os_memcpy(wpa_s->bssid, target_ap_addr, ETH_ALEN);
- ieee80211_associate(wpa_s);
-}
-#endif /* CONFIG_IEEE80211R */
-
-
-#ifdef CONFIG_IEEE80211W
-
-/* MLME-SAQuery.response */
-static int ieee80211_sta_send_sa_query_resp(struct wpa_supplicant *wpa_s,
- const u8 *addr, const u8 *trans_id)
-{
- struct ieee80211_mgmt *mgmt;
- int res;
- size_t len;
-
- mgmt = os_zalloc(sizeof(*mgmt));
- if (mgmt == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: Failed to allocate buffer for "
- "SA Query action frame");
- return -1;
- }
-
- len = 24;
- os_memcpy(mgmt->da, addr, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_ACTION);
- mgmt->u.action.category = WLAN_ACTION_SA_QUERY;
- mgmt->u.action.u.sa_query_resp.action = WLAN_SA_QUERY_RESPONSE;
- os_memcpy(mgmt->u.action.u.sa_query_resp.trans_id, trans_id,
- WLAN_SA_QUERY_TR_ID_LEN);
- len += 1 + sizeof(mgmt->u.action.u.sa_query_resp);
-
- res = ieee80211_sta_tx(wpa_s, (u8 *) mgmt, len);
- os_free(mgmt);
-
- return res;
-}
-
-
-static void ieee80211_rx_mgmt_sa_query_action(
- struct wpa_supplicant *wpa_s, struct ieee80211_mgmt *mgmt, size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- if (len < 24 + 1 + sizeof(mgmt->u.action.u.sa_query_req)) {
- wpa_printf(MSG_DEBUG, "MLME: Too short SA Query Action frame");
- return;
- }
-
- if (mgmt->u.action.u.sa_query_req.action != WLAN_SA_QUERY_REQUEST) {
- wpa_printf(MSG_DEBUG, "MLME: Unexpected SA Query Action %d",
- mgmt->u.action.u.sa_query_req.action);
- return;
- }
-
- if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) != 0) {
- wpa_printf(MSG_DEBUG, "MLME: Ignore SA Query from unknown "
- "source " MACSTR, MAC2STR(mgmt->sa));
- return;
- }
-
- if (wpa_s->mlme.state == IEEE80211_ASSOCIATE) {
- wpa_printf(MSG_DEBUG, "MLME: Ignore SA query request during "
- "association process");
- return;
- }
-
- wpa_printf(MSG_DEBUG, "MLME: Replying to SA Query request");
- ieee80211_sta_send_sa_query_resp(wpa_s, mgmt->sa, mgmt->u.action.u.
- sa_query_req.trans_id);
-}
-
-#endif /* CONFIG_IEEE80211W */
-
-
-static void dump_tspec(struct wmm_tspec_element *tspec)
-{
- int up, psb, dir, tid;
- u16 val;
-
- up = (tspec->ts_info[1] >> 3) & 0x07;
- psb = (tspec->ts_info[1] >> 2) & 0x01;
- dir = (tspec->ts_info[0] >> 5) & 0x03;
- tid = (tspec->ts_info[0] >> 1) & 0x0f;
- wpa_printf(MSG_DEBUG, "WMM: TS Info: UP=%d PSB=%d Direction=%d TID=%d",
- up, psb, dir, tid);
- val = le_to_host16(tspec->nominal_msdu_size);
- wpa_printf(MSG_DEBUG, "WMM: Nominal MSDU Size: %d%s",
- val & 0x7fff, val & 0x8000 ? " (fixed)" : "");
- wpa_printf(MSG_DEBUG, "WMM: Mean Data Rate: %u bps",
- le_to_host32(tspec->mean_data_rate));
- wpa_printf(MSG_DEBUG, "WMM: Minimum PHY Rate: %u bps",
- le_to_host32(tspec->minimum_phy_rate));
- val = le_to_host16(tspec->surplus_bandwidth_allowance);
- wpa_printf(MSG_DEBUG, "WMM: Surplus Bandwidth Allowance: %u.%04u",
- val >> 13, 10000 * (val & 0x1fff) / 0x2000);
- val = le_to_host16(tspec->medium_time);
- wpa_printf(MSG_DEBUG, "WMM: Medium Time: %u (= %u usec/sec)",
- val, 32 * val);
-}
-
-
-static int is_wmm_tspec(const u8 *ie, size_t len)
-{
- const struct wmm_tspec_element *tspec;
-
- if (len < sizeof(*tspec))
- return 0;
-
- tspec = (const struct wmm_tspec_element *) ie;
- if (tspec->eid != WLAN_EID_VENDOR_SPECIFIC ||
- tspec->length < sizeof(*tspec) - 2 ||
- tspec->oui[0] != 0x00 || tspec->oui[1] != 0x50 ||
- tspec->oui[2] != 0xf2 || tspec->oui_type != 2 ||
- tspec->oui_subtype != 2 || tspec->version != 1)
- return 0;
-
- return 1;
-}
-
-
-static void ieee80211_rx_addts_resp(
- struct wpa_supplicant *wpa_s, struct ieee80211_mgmt *mgmt, size_t len,
- size_t var_len)
-{
- struct wmm_tspec_element *tspec;
-
- wpa_printf(MSG_DEBUG, "WMM: Received ADDTS Response");
- wpa_hexdump(MSG_MSGDUMP, "WMM: ADDTS Response IE(s)",
- mgmt->u.action.u.wmm_action.variable, var_len);
- if (!is_wmm_tspec(mgmt->u.action.u.wmm_action.variable, var_len))
- return;
- tspec = (struct wmm_tspec_element *)
- mgmt->u.action.u.wmm_action.variable;
- dump_tspec(tspec);
-}
-
-
-static void ieee80211_rx_delts(
- struct wpa_supplicant *wpa_s, struct ieee80211_mgmt *mgmt, size_t len,
- size_t var_len)
-{
- struct wmm_tspec_element *tspec;
-
- wpa_printf(MSG_DEBUG, "WMM: Received DELTS");
- wpa_hexdump(MSG_MSGDUMP, "WMM: DELTS IE(s)",
- mgmt->u.action.u.wmm_action.variable, var_len);
- if (!is_wmm_tspec(mgmt->u.action.u.wmm_action.variable, var_len))
- return;
- tspec = (struct wmm_tspec_element *)
- mgmt->u.action.u.wmm_action.variable;
- dump_tspec(tspec);
-}
-
-
-static void ieee80211_rx_mgmt_wmm_action(
- struct wpa_supplicant *wpa_s, struct ieee80211_mgmt *mgmt, size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- size_t alen;
-
- alen = mgmt->u.action.u.wmm_action.variable - (u8 *) mgmt;
- if (len < alen) {
- wpa_printf(MSG_DEBUG, "WMM: Received Action frame too short");
- return;
- }
-
- wpa_printf(MSG_DEBUG, "WMM: Received Action frame: Action Code %d, "
- "Dialog Token %d, Status Code %d",
- mgmt->u.action.u.wmm_action.action_code,
- mgmt->u.action.u.wmm_action.dialog_token,
- mgmt->u.action.u.wmm_action.status_code);
-
- switch (mgmt->u.action.u.wmm_action.action_code) {
- case WMM_ACTION_CODE_ADDTS_RESP:
- ieee80211_rx_addts_resp(wpa_s, mgmt, len, len - alen);
- break;
- case WMM_ACTION_CODE_DELTS:
- ieee80211_rx_delts(wpa_s, mgmt, len, len - alen);
- break;
- default:
- wpa_printf(MSG_DEBUG, "WMM: Unsupported Action Code %d",
- mgmt->u.action.u.wmm_action.action_code);
- break;
- }
-}
-
-
-static void ieee80211_rx_mgmt_action(struct wpa_supplicant *wpa_s,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- wpa_printf(MSG_DEBUG, "MLME: received Action frame");
-
- if (len < 25)
- return;
-
- switch (mgmt->u.action.category) {
-#ifdef CONFIG_IEEE80211R
- case WLAN_ACTION_FT:
- ieee80211_rx_mgmt_ft_action(wpa_s, mgmt, len, rx_status);
- break;
-#endif /* CONFIG_IEEE80211R */
-#ifdef CONFIG_IEEE80211W
- case WLAN_ACTION_SA_QUERY:
- ieee80211_rx_mgmt_sa_query_action(wpa_s, mgmt, len, rx_status);
- break;
-#endif /* CONFIG_IEEE80211W */
- case WLAN_ACTION_WMM:
- ieee80211_rx_mgmt_wmm_action(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_ACTION_PUBLIC:
- if (wpa_s->mlme.public_action_cb) {
- wpa_s->mlme.public_action_cb(
- wpa_s->mlme.public_action_cb_ctx,
- (u8 *) mgmt, len, rx_status->freq);
- return;
- }
- break;
- default:
- wpa_printf(MSG_DEBUG, "MLME: unknown Action Category %d",
- mgmt->u.action.category);
- break;
- }
-}
-
-
-static void ieee80211_sta_rx_mgmt(struct wpa_supplicant *wpa_s,
- const u8 *buf, size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (len < 24)
- return;
-
- mgmt = (struct ieee80211_mgmt *) buf;
- fc = le_to_host16(mgmt->frame_control);
-
- switch (WLAN_FC_GET_STYPE(fc)) {
- case WLAN_FC_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_PROBE_RESP:
- ieee80211_rx_mgmt_probe_resp(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_BEACON:
- ieee80211_rx_mgmt_beacon(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_AUTH:
- ieee80211_rx_mgmt_auth(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(wpa_s, mgmt, len, rx_status, 0);
- break;
- case WLAN_FC_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(wpa_s, mgmt, len, rx_status, 1);
- break;
- case WLAN_FC_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(wpa_s, mgmt, len, rx_status);
- break;
- case WLAN_FC_STYPE_ACTION:
- ieee80211_rx_mgmt_action(wpa_s, mgmt, len, rx_status);
- break;
- default:
- wpa_printf(MSG_DEBUG, "MLME: received unknown management "
- "frame - stype=%d", WLAN_FC_GET_STYPE(fc));
- break;
- }
-}
-
-
-static void ieee80211_sta_rx_scan(struct wpa_supplicant *wpa_s,
- const u8 *buf, size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (len < 24)
- return;
-
- mgmt = (struct ieee80211_mgmt *) buf;
- fc = le_to_host16(mgmt->frame_control);
-
- if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT) {
- if (WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
- ieee80211_rx_mgmt_probe_resp(wpa_s, mgmt,
- len, rx_status);
- } else if (WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) {
- ieee80211_rx_mgmt_beacon(wpa_s, mgmt, len, rx_status);
- }
- }
-}
-
-
-static int ieee80211_sta_active_ibss(struct wpa_supplicant *wpa_s)
-{
- int active = 0;
-
-#if 0 /* FIX */
- list_for_each(ptr, &local->sta_list) {
- sta = list_entry(ptr, struct sta_info, list);
- if (sta->dev == dev &&
- time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
- active++;
- break;
- }
- }
-#endif
-
- return active;
-}
-
-
-static void ieee80211_sta_expire(struct wpa_supplicant *wpa_s)
-{
-#if 0 /* FIX */
- list_for_each_safe(ptr, n, &local->sta_list) {
- sta = list_entry(ptr, struct sta_info, list);
- if (time_after(jiffies, sta->last_rx +
- IEEE80211_IBSS_INACTIVITY_LIMIT)) {
- wpa_printf(MSG_DEBUG, "MLME: expiring inactive STA "
- MACSTR, MAC2STR(sta->addr));
- sta_info_free(local, sta, 1);
- }
- }
-#endif
-}
-
-
-static void ieee80211_sta_merge_ibss(struct wpa_supplicant *wpa_s)
-{
- struct wpa_driver_scan_params params;
-
- ieee80211_reschedule_timer(wpa_s, IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_sta_expire(wpa_s);
- if (ieee80211_sta_active_ibss(wpa_s))
- return;
-
- wpa_printf(MSG_DEBUG, "MLME: No active IBSS STAs - trying to scan for "
- "other IBSS networks with same SSID (merge)");
- os_memset(¶ms, 0, sizeof(params));
- params.ssids[0].ssid = wpa_s->mlme.ssid;
- params.ssids[0].ssid_len = wpa_s->mlme.ssid_len;
- params.num_ssids = wpa_s->mlme.ssid_len ? 1 : 0;
- ieee80211_sta_req_scan(wpa_s, ¶ms);
-}
-
-
-static void ieee80211_sta_timer(void *eloop_ctx, void *timeout_ctx)
-{
- struct wpa_supplicant *wpa_s = eloop_ctx;
-
- switch (wpa_s->mlme.state) {
- case IEEE80211_DISABLED:
- break;
- case IEEE80211_AUTHENTICATE:
- ieee80211_authenticate(wpa_s);
- break;
- case IEEE80211_ASSOCIATE:
- ieee80211_associate(wpa_s);
- break;
- case IEEE80211_ASSOCIATED:
- ieee80211_associated(wpa_s);
- break;
- case IEEE80211_IBSS_SEARCH:
- ieee80211_sta_find_ibss(wpa_s);
- break;
- case IEEE80211_IBSS_JOINED:
- ieee80211_sta_merge_ibss(wpa_s);
- break;
- default:
- wpa_printf(MSG_DEBUG, "ieee80211_sta_timer: Unknown state %d",
- wpa_s->mlme.state);
- break;
- }
-
- if (ieee80211_privacy_mismatch(wpa_s)) {
- wpa_printf(MSG_DEBUG, "MLME: privacy configuration mismatch "
- "and mixed-cell disabled - disassociate");
-
- ieee80211_send_disassoc(wpa_s, WLAN_REASON_UNSPECIFIED);
- ieee80211_set_associated(wpa_s, 0);
- }
-}
-
-
-static void ieee80211_sta_new_auth(struct wpa_supplicant *wpa_s)
-{
- struct wpa_ssid *ssid = wpa_s->current_ssid;
- if (ssid && ssid->mode != WPAS_MODE_INFRA)
- return;
-
-#if 0 /* FIX */
- if (local->hw->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->hw->reset_tsf(local->mdev);
- }
-#endif
-
- wpa_s->mlme.wmm_last_param_set = -1; /* allow any WMM update */
-
-
- if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_OPEN)
- wpa_s->mlme.auth_alg = WLAN_AUTH_OPEN;
- else if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_SHARED)
- wpa_s->mlme.auth_alg = WLAN_AUTH_SHARED_KEY;
- else if (wpa_s->mlme.auth_algs & WPA_AUTH_ALG_LEAP)
- wpa_s->mlme.auth_alg = WLAN_AUTH_LEAP;
- else
- wpa_s->mlme.auth_alg = WLAN_AUTH_OPEN;
- wpa_printf(MSG_DEBUG, "MLME: Initial auth_alg=%d",
- wpa_s->mlme.auth_alg);
- wpa_s->mlme.auth_transaction = -1;
- wpa_s->mlme.auth_tries = wpa_s->mlme.assoc_tries = 0;
- ieee80211_authenticate(wpa_s);
-}
-
-
-static int ieee80211_ibss_allowed(struct wpa_supplicant *wpa_s)
-{
-#if 0 /* FIX */
- int m, c;
-
- for (m = 0; m < local->hw->num_modes; m++) {
- struct ieee80211_hw_modes *mode = &local->hw->modes[m];
- if (mode->mode != local->conf.phymode)
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- chan->chan == local->conf.channel) {
- if (chan->flag & IEEE80211_CHAN_W_IBSS)
- return 1;
- break;
- }
- }
- }
-#endif
-
- return 0;
-}
-
-
-static int ieee80211_sta_join_ibss(struct wpa_supplicant *wpa_s,
- struct ieee80211_sta_bss *bss)
-{
- int res = 0, rates, done = 0, bssid_changed;
- struct ieee80211_mgmt *mgmt;
-#if 0 /* FIX */
- struct ieee80211_tx_control control;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
-#endif
- u8 *pos, *buf;
- size_t len;
-
- /* Remove possible STA entries from other IBSS networks. */
-#if 0 /* FIX */
- sta_info_flush(local, NULL);
-
- if (local->hw->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->hw->reset_tsf(local->mdev);
- }
-#endif
- bssid_changed = os_memcmp(wpa_s->bssid, bss->bssid, ETH_ALEN);
- os_memcpy(wpa_s->bssid, bss->bssid, ETH_ALEN);
- if (bssid_changed)
- wpas_notify_bssid_changed(wpa_s);
-
-#if 0 /* FIX */
- local->conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
-
- sdata->drop_unencrypted = bss->capability &
- host_to_le16(WLAN_CAPABILITY_PRIVACY) ? 1 : 0;
-#endif
-
-#if 0 /* FIX */
- os_memset(&rq, 0, sizeof(rq));
- rq.m = bss->freq * 100000;
- rq.e = 1;
- res = ieee80211_ioctl_siwfreq(wpa_s, NULL, &rq, NULL);
-#endif
-
- if (!ieee80211_ibss_allowed(wpa_s)) {
-#if 0 /* FIX */
- wpa_printf(MSG_DEBUG, "MLME: IBSS not allowed on channel %d "
- "(%d MHz)", local->conf.channel,
- local->conf.freq);
-#endif
- return -1;
- }
-
- /* Set beacon template based on scan results */
- buf = os_malloc(400);
- len = 0;
- do {
- if (buf == NULL)
- break;
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len += 24 + sizeof(mgmt->u.beacon);
- os_memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_BEACON);
- os_memset(mgmt->da, 0xff, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
-#if 0 /* FIX */
- mgmt->u.beacon.beacon_int =
- host_to_le16(local->conf.beacon_int);
-#endif
- mgmt->u.beacon.capab_info = host_to_le16(bss->capability);
-
- pos = buf + len;
- len += 2 + wpa_s->mlme.ssid_len;
- *pos++ = WLAN_EID_SSID;
- *pos++ = wpa_s->mlme.ssid_len;
- os_memcpy(pos, wpa_s->mlme.ssid, wpa_s->mlme.ssid_len);
-
- rates = bss->supp_rates_len;
- if (rates > 8)
- rates = 8;
- pos = buf + len;
- len += 2 + rates;
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = rates;
- os_memcpy(pos, bss->supp_rates, rates);
-
- pos = buf + len;
- len += 2 + 1;
- *pos++ = WLAN_EID_DS_PARAMS;
- *pos++ = 1;
- *pos++ = bss->channel;
-
- pos = buf + len;
- len += 2 + 2;
- *pos++ = WLAN_EID_IBSS_PARAMS;
- *pos++ = 2;
- /* FIX: set ATIM window based on scan results */
- *pos++ = 0;
- *pos++ = 0;
-
- if (bss->supp_rates_len > 8) {
- rates = bss->supp_rates_len - 8;
- pos = buf + len;
- len += 2 + rates;
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates;
- os_memcpy(pos, &bss->supp_rates[8], rates);
- }
-
-#if 0 /* FIX */
- os_memset(&control, 0, sizeof(control));
- control.pkt_type = PKT_PROBE_RESP;
- os_memset(&extra, 0, sizeof(extra));
- extra.endidx = local->num_curr_rates;
- rate = rate_control_get_rate(wpa_s, skb, &extra);
- if (rate == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: Failed to determine TX "
- "rate for IBSS beacon");
- break;
- }
- control.tx_rate = (wpa_s->mlme.short_preamble &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control.antenna_sel = local->conf.antenna_sel;
- control.power_level = local->conf.power_level;
- control.no_ack = 1;
- control.retry_limit = 1;
- control.rts_cts_duration = 0;
-#endif
-
-#if 0 /* FIX */
- wpa_s->mlme.probe_resp = skb_copy(skb, GFP_ATOMIC);
- if (wpa_s->mlme.probe_resp) {
- mgmt = (struct ieee80211_mgmt *)
- wpa_s->mlme.probe_resp->data;
- mgmt->frame_control =
- IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_PROBE_RESP);
- } else {
- wpa_printf(MSG_DEBUG, "MLME: Could not allocate "
- "ProbeResp template for IBSS");
- }
-
- if (local->hw->beacon_update &&
- local->hw->beacon_update(wpa_s, skb, &control) == 0) {
- wpa_printf(MSG_DEBUG, "MLME: Configured IBSS beacon "
- "template based on scan results");
- skb = NULL;
- }
-
- rates = 0;
- for (i = 0; i < bss->supp_rates_len; i++) {
- int rate = (bss->supp_rates[i] & 0x7f) * 5;
- if (local->conf.phymode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < local->num_curr_rates; j++)
- if (local->curr_rates[j] == rate)
- rates |= BIT(j);
- }
- wpa_s->mlme.supp_rates_bits = rates;
-#endif
- done = 1;
- } while (0);
-
- os_free(buf);
- if (!done) {
- wpa_printf(MSG_DEBUG, "MLME: Failed to configure IBSS beacon "
- "template");
- }
-
- wpa_s->mlme.state = IEEE80211_IBSS_JOINED;
- ieee80211_reschedule_timer(wpa_s, IEEE80211_IBSS_MERGE_INTERVAL);
-
- return res;
-}
-
-
-#if 0 /* FIX */
-static int ieee80211_sta_create_ibss(struct wpa_supplicant *wpa_s)
-{
- struct ieee80211_sta_bss *bss;
- u8 bssid[ETH_ALEN], *pos;
- int i;
-
-#if 0
- /* Easier testing, use fixed BSSID. */
- os_memset(bssid, 0xfe, ETH_ALEN);
-#else
- /* Generate random, not broadcast, locally administered BSSID. Mix in
- * own MAC address to make sure that devices that do not have proper
- * random number generator get different BSSID. */
- os_get_random(bssid, ETH_ALEN);
- for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= wpa_s->own_addr[i];
- bssid[0] &= ~0x01;
- bssid[0] |= 0x02;
-#endif
-
- wpa_printf(MSG_DEBUG, "MLME: Creating new IBSS network, BSSID "
- MACSTR "", MAC2STR(bssid));
-
- bss = ieee80211_bss_add(wpa_s, bssid);
- if (bss == NULL)
- return -ENOMEM;
-
-#if 0 /* FIX */
- if (local->conf.beacon_int == 0)
- local->conf.beacon_int = 100;
- bss->beacon_int = local->conf.beacon_int;
- bss->hw_mode = local->conf.phymode;
- bss->channel = local->conf.channel;
- bss->freq = local->conf.freq;
-#endif
- os_get_time(&bss->last_update);
- bss->capability = host_to_le16(WLAN_CAPABILITY_IBSS);
-#if 0 /* FIX */
- if (sdata->default_key) {
- bss->capability |= host_to_le16(WLAN_CAPABILITY_PRIVACY);
- } else
- sdata->drop_unencrypted = 0;
- bss->supp_rates_len = local->num_curr_rates;
-#endif
- pos = bss->supp_rates;
-#if 0 /* FIX */
- for (i = 0; i < local->num_curr_rates; i++) {
- int rate = local->curr_rates[i];
- if (local->conf.phymode == MODE_ATHEROS_TURBO)
- rate /= 2;
- *pos++ = (u8) (rate / 5);
- }
-#endif
-
- return ieee80211_sta_join_ibss(wpa_s, bss);
-}
-#endif
-
-
-static int ieee80211_sta_find_ibss(struct wpa_supplicant *wpa_s)
-{
- struct ieee80211_sta_bss *bss;
- int found = 0;
- u8 bssid[ETH_ALEN];
- int active_ibss;
- struct os_time now;
-
- if (wpa_s->mlme.ssid_len == 0)
- return -EINVAL;
-
- active_ibss = ieee80211_sta_active_ibss(wpa_s);
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, "MLME: sta_find_ibss (active_ibss=%d)",
- active_ibss);
-#endif /* IEEE80211_IBSS_DEBUG */
- for (bss = wpa_s->mlme.sta_bss_list; bss; bss = bss->next) {
- if (wpa_s->mlme.ssid_len != bss->ssid_len ||
- os_memcmp(wpa_s->mlme.ssid, bss->ssid, bss->ssid_len) != 0
- || !(bss->capability & WLAN_CAPABILITY_IBSS))
- continue;
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, " bssid=" MACSTR " found",
- MAC2STR(bss->bssid));
-#endif /* IEEE80211_IBSS_DEBUG */
- os_memcpy(bssid, bss->bssid, ETH_ALEN);
- found = 1;
- if (active_ibss ||
- os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)
- break;
- }
-
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, " sta_find_ibss: selected " MACSTR " current "
- MACSTR, MAC2STR(bssid), MAC2STR(wpa_s->bssid));
-#endif /* IEEE80211_IBSS_DEBUG */
- if (found && os_memcmp(wpa_s->bssid, bssid, ETH_ALEN) != 0 &&
- (bss = ieee80211_bss_get(wpa_s, bssid))) {
- wpa_printf(MSG_DEBUG, "MLME: Selected IBSS BSSID " MACSTR
- " based on configured SSID",
- MAC2STR(bssid));
- return ieee80211_sta_join_ibss(wpa_s, bss);
- }
-#ifdef IEEE80211_IBSS_DEBUG
- wpa_printf(MSG_DEBUG, " did not try to join ibss");
-#endif /* IEEE80211_IBSS_DEBUG */
-
- /* Selected IBSS not found in current scan results - try to scan */
- os_get_time(&now);
-#if 0 /* FIX */
- if (wpa_s->mlme.state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(wpa_s)) {
- ieee80211_reschedule_timer(wpa_s,
- IEEE80211_IBSS_MERGE_INTERVAL);
- } else if (time_after(jiffies, wpa_s->mlme.last_scan_completed +
- IEEE80211_SCAN_INTERVAL)) {
- wpa_printf(MSG_DEBUG, "MLME: Trigger new scan to find an IBSS "
- "to join");
- return ieee80211_sta_req_scan(wpa_s->mlme.ssid,
- wpa_s->mlme.ssid_len);
- } else if (wpa_s->mlme.state != IEEE80211_IBSS_JOINED) {
- int interval = IEEE80211_SCAN_INTERVAL;
-
- if (time_after(jiffies, wpa_s->mlme.ibss_join_req +
- IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if (wpa_s->mlme.create_ibss &&
- ieee80211_ibss_allowed(wpa_s))
- return ieee80211_sta_create_ibss(wpa_s);
- if (wpa_s->mlme.create_ibss) {
- wpa_printf(MSG_DEBUG, "MLME: IBSS not allowed "
- "on the configured channel %d "
- "(%d MHz)",
- local->conf.channel,
- local->conf.freq);
- }
-
- /* No IBSS found - decrease scan interval and continue
- * scanning. */
- interval = IEEE80211_SCAN_INTERVAL_SLOW;
- }
-
- wpa_s->mlme.state = IEEE80211_IBSS_SEARCH;
- ieee80211_reschedule_timer(wpa_s, interval);
- return 0;
- }
-#endif
-
- return 0;
-}
-
-
-int ieee80211_sta_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid,
- size_t *len)
-{
- os_memcpy(ssid, wpa_s->mlme.ssid, wpa_s->mlme.ssid_len);
- *len = wpa_s->mlme.ssid_len;
- return 0;
-}
-
-
-int ieee80211_sta_associate(struct wpa_supplicant *wpa_s,
- struct wpa_driver_associate_params *params)
-{
- struct ieee80211_sta_bss *bss;
- int bssid_changed;
-
- wpa_s->mlme.bssid_set = 0;
- wpa_s->mlme.freq = params->freq;
- if (params->bssid) {
- bssid_changed = os_memcmp(wpa_s->bssid, params->bssid,
- ETH_ALEN);
- os_memcpy(wpa_s->bssid, params->bssid, ETH_ALEN);
- if (bssid_changed)
- wpas_notify_bssid_changed(wpa_s);
-
- if (!is_zero_ether_addr(params->bssid))
- wpa_s->mlme.bssid_set = 1;
- bss = ieee80211_bss_get(wpa_s, wpa_s->bssid);
- if (bss) {
- wpa_s->mlme.phymode = bss->hw_mode;
- wpa_s->mlme.channel = bss->channel;
- wpa_s->mlme.freq = bss->freq;
- }
- }
-
-#if 0 /* FIX */
- /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
- * not defined. */
- if (local->hw->conf_tx) {
- struct ieee80211_tx_queue_params qparam;
- int i;
-
- os_memset(&qparam, 0, sizeof(qparam));
- /* TODO: are these ok defaults for all hw_modes? */
- qparam.aifs = 2;
- qparam.cw_min =
- local->conf.phymode == MODE_IEEE80211B ? 31 : 15;
- qparam.cw_max = 1023;
- qparam.burst_time = 0;
- for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
- {
- local->hw->conf_tx(wpa_s, i + IEEE80211_TX_QUEUE_DATA0,
- &qparam);
- }
- /* IBSS uses different parameters for Beacon sending */
- qparam.cw_min++;
- qparam.cw_min *= 2;
- qparam.cw_min--;
- local->hw->conf_tx(wpa_s, IEEE80211_TX_QUEUE_BEACON, &qparam);
- }
-#endif
-
- if (wpa_s->mlme.ssid_len != params->ssid_len ||
- os_memcmp(wpa_s->mlme.ssid, params->ssid, params->ssid_len) != 0)
- wpa_s->mlme.prev_bssid_set = 0;
- os_memcpy(wpa_s->mlme.ssid, params->ssid, params->ssid_len);
- os_memset(wpa_s->mlme.ssid + params->ssid_len, 0,
- MAX_SSID_LEN - params->ssid_len);
- wpa_s->mlme.ssid_len = params->ssid_len;
- wpa_s->mlme.ssid_set = 1;
-
- os_free(wpa_s->mlme.extra_ie);
- if (params->wpa_ie == NULL || params->wpa_ie_len == 0) {
- wpa_s->mlme.extra_ie = NULL;
- wpa_s->mlme.extra_ie_len = 0;
- } else {
- wpa_s->mlme.extra_ie = os_malloc(params->wpa_ie_len);
- if (wpa_s->mlme.extra_ie == NULL) {
- wpa_s->mlme.extra_ie_len = 0;
- return -1;
- }
- os_memcpy(wpa_s->mlme.extra_ie, params->wpa_ie,
- params->wpa_ie_len);
- wpa_s->mlme.extra_ie_len = params->wpa_ie_len;
- }
-
- wpa_s->mlme.key_mgmt = params->key_mgmt_suite;
-
- ieee80211_sta_set_channel(wpa_s, wpa_s->mlme.phymode,
- wpa_s->mlme.channel, wpa_s->mlme.freq);
-
- if (params->mode == WPAS_MODE_IBSS && !wpa_s->mlme.bssid_set) {
- os_get_time(&wpa_s->mlme.ibss_join_req);
- wpa_s->mlme.state = IEEE80211_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(wpa_s);
- }
-
- if (wpa_s->mlme.bssid_set)
- ieee80211_sta_new_auth(wpa_s);
-
- return 0;
-}
-
-
-static void ieee80211_sta_save_oper_chan(struct wpa_supplicant *wpa_s)
-{
- wpa_s->mlme.scan_oper_channel = wpa_s->mlme.channel;
- wpa_s->mlme.scan_oper_freq = wpa_s->mlme.freq;
- wpa_s->mlme.scan_oper_phymode = wpa_s->mlme.phymode;
-}
-
-
-static int ieee80211_sta_restore_oper_chan(struct wpa_supplicant *wpa_s)
-{
- wpa_s->mlme.channel = wpa_s->mlme.scan_oper_channel;
- wpa_s->mlme.freq = wpa_s->mlme.scan_oper_freq;
- wpa_s->mlme.phymode = wpa_s->mlme.scan_oper_phymode;
- if (wpa_s->mlme.freq == 0)
- return 0;
- return ieee80211_sta_set_channel(wpa_s, wpa_s->mlme.phymode,
- wpa_s->mlme.channel,
- wpa_s->mlme.freq);
-}
-
-
-static int ieee80211_active_scan(struct wpa_supplicant *wpa_s)
-{
- size_t m;
- int c;
-
- for (m = 0; m < wpa_s->mlme.num_modes; m++) {
- struct hostapd_hw_modes *mode = &wpa_s->mlme.modes[m];
- if ((int) mode->mode != (int) wpa_s->mlme.phymode)
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct hostapd_channel_data *chan = &mode->channels[c];
- if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
- chan->chan == wpa_s->mlme.channel) {
- if (!(chan->flag & HOSTAPD_CHAN_PASSIVE_SCAN))
- return 1;
- break;
- }
- }
- }
-
- return 0;
-}
-
-
-static void ieee80211_sta_scan_timer(void *eloop_ctx, void *timeout_ctx)
-{
- struct wpa_supplicant *wpa_s = eloop_ctx;
- struct hostapd_hw_modes *mode;
- struct hostapd_channel_data *chan;
- int skip = 0;
- int timeout = 0;
- struct wpa_ssid *ssid = wpa_s->current_ssid;
- int adhoc;
-
- if (!wpa_s->mlme.sta_scanning || wpa_s->mlme.modes == NULL)
- return;
-
- adhoc = ssid && ssid->mode == 1;
-
- switch (wpa_s->mlme.scan_state) {
- case SCAN_SET_CHANNEL:
- mode = &wpa_s->mlme.modes[wpa_s->mlme.scan_hw_mode_idx];
- if (wpa_s->mlme.scan_hw_mode_idx >=
- (int) wpa_s->mlme.num_modes ||
- (wpa_s->mlme.scan_hw_mode_idx + 1 ==
- (int) wpa_s->mlme.num_modes
- && wpa_s->mlme.scan_channel_idx >= mode->num_channels)) {
- if (ieee80211_sta_restore_oper_chan(wpa_s)) {
- wpa_printf(MSG_DEBUG, "MLME: failed to "
- "restore operational channel after "
- "scan");
- }
- wpa_printf(MSG_DEBUG, "MLME: scan completed");
- wpa_s->mlme.sta_scanning = 0;
- os_get_time(&wpa_s->mlme.last_scan_completed);
- wpa_supplicant_event(wpa_s, EVENT_SCAN_RESULTS, NULL);
- if (adhoc) {
- if (!wpa_s->mlme.bssid_set ||
- (wpa_s->mlme.state ==
- IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(wpa_s)))
- ieee80211_sta_find_ibss(wpa_s);
- }
- return;
- }
- skip = !(wpa_s->mlme.hw_modes & (1 << mode->mode));
- chan = &mode->channels[wpa_s->mlme.scan_channel_idx];
- if ((chan->flag & HOSTAPD_CHAN_DISABLED) ||
- (adhoc && (chan->flag & HOSTAPD_CHAN_NO_IBSS)) ||
- (wpa_s->mlme.hw_modes & (1 << HOSTAPD_MODE_IEEE80211G) &&
- mode->mode == HOSTAPD_MODE_IEEE80211B &&
- wpa_s->mlme.scan_skip_11b))
- skip = 1;
- if (!skip && wpa_s->mlme.scan_freqs) {
- int i, found = 0;
- for (i = 0; wpa_s->mlme.scan_freqs[i]; i++) {
- if (wpa_s->mlme.scan_freqs[i] == chan->freq) {
- found = 1;
- break;
- }
- }
- if (!found)
- skip = 1;
- }
-
- if (!skip) {
- wpa_printf(MSG_MSGDUMP,
- "MLME: scan channel %d (%d MHz)",
- chan->chan, chan->freq);
-
- wpa_s->mlme.channel = chan->chan;
- wpa_s->mlme.freq = chan->freq;
- wpa_s->mlme.phymode = mode->mode;
- if (ieee80211_sta_set_channel(wpa_s, mode->mode,
- chan->chan, chan->freq))
- {
- wpa_printf(MSG_DEBUG, "MLME: failed to set "
- "channel %d (%d MHz) for scan",
- chan->chan, chan->freq);
- skip = 1;
- }
- }
-
- wpa_s->mlme.scan_channel_idx++;
- if (wpa_s->mlme.scan_channel_idx >=
- wpa_s->mlme.modes[wpa_s->mlme.scan_hw_mode_idx].
- num_channels) {
- wpa_s->mlme.scan_hw_mode_idx++;
- wpa_s->mlme.scan_channel_idx = 0;
- }
-
- if (skip) {
- timeout = 0;
- break;
- }
-
- timeout = IEEE80211_PROBE_DELAY;
- wpa_s->mlme.scan_state = SCAN_SEND_PROBE;
- break;
- case SCAN_SEND_PROBE:
- if (ieee80211_active_scan(wpa_s)) {
- ieee80211_send_probe_req(wpa_s, NULL,
- wpa_s->mlme.scan_ssid,
- wpa_s->mlme.scan_ssid_len);
- timeout = IEEE80211_CHANNEL_TIME;
- } else {
- timeout = IEEE80211_PASSIVE_CHANNEL_TIME;
- }
- wpa_s->mlme.scan_state = SCAN_SET_CHANNEL;
- break;
- }
-
- eloop_register_timeout(timeout / 1000, 1000 * (timeout % 1000),
- ieee80211_sta_scan_timer, wpa_s, NULL);
-}
-
-
-int ieee80211_sta_req_scan(struct wpa_supplicant *wpa_s,
- struct wpa_driver_scan_params *params)
-{
- const u8 *ssid = params->ssids[0].ssid;
- size_t ssid_len = params->ssids[0].ssid_len;
-
- if (ssid_len > MAX_SSID_LEN)
- return -1;
-
- /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
- * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
- * BSSID: MACAddress
- * SSID
- * ScanType: ACTIVE, PASSIVE
- * ProbeDelay: delay (in microseconds) to be used prior to transmitting
- * a Probe frame during active scanning
- * ChannelList
- * MinChannelTime (>= ProbeDelay), in TU
- * MaxChannelTime: (>= MinChannelTime), in TU
- */
-
- /* MLME-SCAN.confirm
- * BSSDescriptionSet
- * ResultCode: SUCCESS, INVALID_PARAMETERS
- */
-
- /* TODO: if assoc, move to power save mode for the duration of the
- * scan */
-
- if (wpa_s->mlme.sta_scanning)
- return -1;
-
- wpa_printf(MSG_DEBUG, "MLME: starting scan");
-
- ieee80211_sta_set_probe_req_ie(wpa_s, params->extra_ies,
- params->extra_ies_len);
-
- os_free(wpa_s->mlme.scan_freqs);
- if (params->freqs) {
- int i;
- for (i = 0; params->freqs[i]; i++)
- ;
- wpa_s->mlme.scan_freqs = os_malloc((i + 1) * sizeof(int));
- if (wpa_s->mlme.scan_freqs)
- os_memcpy(wpa_s->mlme.scan_freqs, params->freqs,
- (i + 1) * sizeof(int));
- } else
- wpa_s->mlme.scan_freqs = NULL;
-
- ieee80211_sta_save_oper_chan(wpa_s);
-
- wpa_s->mlme.sta_scanning = 1;
- /* TODO: stop TX queue? */
-
- if (ssid) {
- wpa_s->mlme.scan_ssid_len = ssid_len;
- os_memcpy(wpa_s->mlme.scan_ssid, ssid, ssid_len);
- } else
- wpa_s->mlme.scan_ssid_len = 0;
- wpa_s->mlme.scan_skip_11b = 1; /* FIX: clear this is 11g is not
- * supported */
- wpa_s->mlme.scan_state = SCAN_SET_CHANNEL;
- wpa_s->mlme.scan_hw_mode_idx = 0;
- wpa_s->mlme.scan_channel_idx = 0;
- eloop_register_timeout(0, 1, ieee80211_sta_scan_timer, wpa_s, NULL);
-
- return 0;
-}
-
-
-struct wpa_scan_results *
-ieee80211_sta_get_scan_results(struct wpa_supplicant *wpa_s)
-{
- size_t ap_num = 0;
- struct wpa_scan_results *res;
- struct wpa_scan_res *r;
- struct ieee80211_sta_bss *bss;
-
- res = os_zalloc(sizeof(*res));
- for (bss = wpa_s->mlme.sta_bss_list; bss; bss = bss->next)
- ap_num++;
- res->res = os_zalloc(ap_num * sizeof(struct wpa_scan_res *));
- if (res->res == NULL) {
- os_free(res);
- return NULL;
- }
-
- for (bss = wpa_s->mlme.sta_bss_list; bss; bss = bss->next) {
- r = os_zalloc(sizeof(*r) + bss->ie_len);
- if (r == NULL)
- break;
- os_memcpy(r->bssid, bss->bssid, ETH_ALEN);
- r->freq = bss->freq;
- r->beacon_int = bss->beacon_int;
- r->caps = bss->capability;
- r->level = bss->rssi;
- r->tsf = bss->timestamp;
- if (bss->ie) {
- r->ie_len = bss->ie_len;
- os_memcpy(r + 1, bss->ie, bss->ie_len);
- }
-
- res->res[res->num++] = r;
- }
-
- return res;
-}
-
-
-#if 0 /* FIX */
-struct sta_info * ieee80211_ibss_add_sta(struct wpa_supplicant *wpa_s,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr)
-{
- struct ieee80211_local *local = dev->priv;
- struct list_head *ptr;
- struct sta_info *sta;
- struct wpa_supplicant *sta_dev = NULL;
-
- /* TODO: Could consider removing the least recently used entry and
- * allow new one to be added. */
- if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
- if (net_ratelimit()) {
- wpa_printf(MSG_DEBUG, "MLME: No room for a new IBSS "
- "STA entry " MACSTR, MAC2STR(addr));
- }
- return NULL;
- }
-
- spin_lock_bh(&local->sub_if_lock);
- list_for_each(ptr, &local->sub_if_list) {
- sdata = list_entry(ptr, struct ieee80211_sub_if_data, list);
- if (sdata->type == IEEE80211_SUB_IF_TYPE_STA &&
- os_memcmp(bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
- sta_dev = sdata->dev;
- break;
- }
- }
- spin_unlock_bh(&local->sub_if_lock);
-
- if (sta_dev == NULL)
- return NULL;
-
- wpa_printf(MSG_DEBUG, "MLME: Adding new IBSS station " MACSTR
- " (dev=%s)", MAC2STR(addr), sta_dev->name);
-
- sta = sta_info_add(wpa_s, addr);
- if (sta == NULL) {
- return NULL;
- }
-
- sta->dev = sta_dev;
- sta->supp_rates = wpa_s->mlme.supp_rates_bits;
-
- rate_control_rate_init(local, sta);
-
- return sta; /* caller will call sta_info_release() */
-}
-#endif
-
-
-int ieee80211_sta_deauthenticate(struct wpa_supplicant *wpa_s, u16 reason)
-{
- wpa_printf(MSG_DEBUG, "MLME: deauthenticate(reason=%d)", reason);
-
- ieee80211_send_deauth(wpa_s, reason);
- ieee80211_set_associated(wpa_s, 0);
- return 0;
-}
-
-
-int ieee80211_sta_disassociate(struct wpa_supplicant *wpa_s, u16 reason)
-{
- wpa_printf(MSG_DEBUG, "MLME: disassociate(reason=%d)", reason);
-
- if (!wpa_s->mlme.associated)
- return -1;
-
- ieee80211_send_disassoc(wpa_s, reason);
- ieee80211_set_associated(wpa_s, 0);
- return 0;
-}
-
-
-void ieee80211_sta_rx(struct wpa_supplicant *wpa_s, const u8 *buf, size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_mgmt *mgmt;
- u16 fc;
- const u8 *pos;
-
- /* wpa_hexdump(MSG_MSGDUMP, "MLME: Received frame", buf, len); */
-
- if (wpa_s->mlme.sta_scanning) {
- ieee80211_sta_rx_scan(wpa_s, buf, len, rx_status);
- return;
- }
-
- if (len < 24)
- return;
-
- mgmt = (struct ieee80211_mgmt *) buf;
- fc = le_to_host16(mgmt->frame_control);
-
- if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT)
- ieee80211_sta_rx_mgmt(wpa_s, buf, len, rx_status);
- else if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA) {
- if ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) !=
- WLAN_FC_FROMDS)
- return;
- /* mgmt->sa is actually BSSID for FromDS data frames */
- if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) != 0)
- return;
- /* Skip IEEE 802.11 and LLC headers */
- pos = buf + 24 + 6;
- if (WPA_GET_BE16(pos) != ETH_P_EAPOL)
- return;
- pos += 2;
- /* mgmt->bssid is actually BSSID for SA data frames */
- wpa_supplicant_rx_eapol(wpa_s, mgmt->bssid,
- pos, buf + len - pos);
- }
-}
-
-
-void ieee80211_sta_free_hw_features(struct hostapd_hw_modes *hw_features,
- size_t num_hw_features)
-{
- size_t i;
-
- if (hw_features == NULL)
- return;
-
- for (i = 0; i < num_hw_features; i++) {
- os_free(hw_features[i].channels);
- os_free(hw_features[i].rates);
- }
-
- os_free(hw_features);
-}
-
-
-int ieee80211_sta_init(struct wpa_supplicant *wpa_s)
-{
- u16 num_modes, flags;
-
- wpa_s->mlme.modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes,
- &flags);
- if (wpa_s->mlme.modes == NULL) {
- wpa_printf(MSG_ERROR, "MLME: Failed to read supported "
- "channels and rates from the driver");
- return -1;
- }
-
- wpa_s->mlme.num_modes = num_modes;
-
- wpa_s->mlme.hw_modes = 1 << HOSTAPD_MODE_IEEE80211A;
- wpa_s->mlme.hw_modes |= 1 << HOSTAPD_MODE_IEEE80211B;
- wpa_s->mlme.hw_modes |= 1 << HOSTAPD_MODE_IEEE80211G;
-
- wpa_s->mlme.wmm_enabled = 1;
-
- return 0;
-}
-
-
-void ieee80211_sta_deinit(struct wpa_supplicant *wpa_s)
-{
- eloop_cancel_timeout(ieee80211_sta_timer, wpa_s, NULL);
- eloop_cancel_timeout(ieee80211_sta_scan_timer, wpa_s, NULL);
- os_free(wpa_s->mlme.extra_ie);
- wpa_s->mlme.extra_ie = NULL;
- os_free(wpa_s->mlme.extra_probe_ie);
- wpa_s->mlme.extra_probe_ie = NULL;
- os_free(wpa_s->mlme.assocreq_ies);
- wpa_s->mlme.assocreq_ies = NULL;
- os_free(wpa_s->mlme.assocresp_ies);
- wpa_s->mlme.assocresp_ies = NULL;
- ieee80211_bss_list_deinit(wpa_s);
- ieee80211_sta_free_hw_features(wpa_s->mlme.modes,
- wpa_s->mlme.num_modes);
-#ifdef CONFIG_IEEE80211R
- os_free(wpa_s->mlme.ft_ies);
- wpa_s->mlme.ft_ies = NULL;
- wpa_s->mlme.ft_ies_len = 0;
-#endif /* CONFIG_IEEE80211R */
-
- os_free(wpa_s->mlme.scan_freqs);
- wpa_s->mlme.scan_freqs = NULL;
-}
-
-
-#ifdef CONFIG_IEEE80211R
-
-int ieee80211_sta_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
- const u8 *ies, size_t ies_len)
-{
- if (md == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: Clear FT mobility domain");
- os_memset(wpa_s->mlme.current_md, 0, MOBILITY_DOMAIN_ID_LEN);
- } else {
- wpa_printf(MSG_DEBUG, "MLME: Update FT IEs for MD " MACSTR,
- MAC2STR(md));
- os_memcpy(wpa_s->mlme.current_md, md, MOBILITY_DOMAIN_ID_LEN);
- }
-
- wpa_hexdump(MSG_DEBUG, "MLME: FT IEs", ies, ies_len);
- os_free(wpa_s->mlme.ft_ies);
- wpa_s->mlme.ft_ies = os_malloc(ies_len);
- if (wpa_s->mlme.ft_ies == NULL)
- return -1;
- os_memcpy(wpa_s->mlme.ft_ies, ies, ies_len);
- wpa_s->mlme.ft_ies_len = ies_len;
-
- return 0;
-}
-
-
-int ieee80211_sta_send_ft_action(struct wpa_supplicant *wpa_s, u8 action,
- const u8 *target_ap,
- const u8 *ies, size_t ies_len)
-{
- u8 *buf;
- size_t len;
- struct ieee80211_mgmt *mgmt;
- int res;
-
- /*
- * Action frame payload:
- * Category[1] = 6 (Fast BSS Transition)
- * Action[1] = 1 (Fast BSS Transition Request)
- * STA Address
- * Target AP Address
- * FT IEs
- */
-
- buf = os_zalloc(sizeof(*mgmt) + ies_len);
- if (buf == NULL) {
- wpa_printf(MSG_DEBUG, "MLME: Failed to allocate buffer for "
- "FT action frame");
- return -1;
- }
-
- mgmt = (struct ieee80211_mgmt *) buf;
- len = 24;
- os_memcpy(mgmt->da, wpa_s->bssid, ETH_ALEN);
- os_memcpy(mgmt->sa, wpa_s->own_addr, ETH_ALEN);
- os_memcpy(mgmt->bssid, wpa_s->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
- WLAN_FC_STYPE_ACTION);
- mgmt->u.action.category = WLAN_ACTION_FT;
- mgmt->u.action.u.ft_action_req.action = action;
- os_memcpy(mgmt->u.action.u.ft_action_req.sta_addr, wpa_s->own_addr,
- ETH_ALEN);
- os_memcpy(mgmt->u.action.u.ft_action_req.target_ap_addr, target_ap,
- ETH_ALEN);
- os_memcpy(mgmt->u.action.u.ft_action_req.variable, ies, ies_len);
- len += 1 + sizeof(mgmt->u.action.u.ft_action_req) + ies_len;
-
- wpa_printf(MSG_DEBUG, "MLME: Send FT Action Frame: Action=%d "
- "Target AP=" MACSTR " body_len=%lu",
- action, MAC2STR(target_ap), (unsigned long) ies_len);
-
- res = ieee80211_sta_tx(wpa_s, buf, len);
- os_free(buf);
-
- return res;
-}
-
-#endif /* CONFIG_IEEE80211R */
-
-
-static int ieee80211_sta_set_probe_req_ie(struct wpa_supplicant *wpa_s,
- const u8 *ies, size_t ies_len)
-{
- os_free(wpa_s->mlme.extra_probe_ie);
- wpa_s->mlme.extra_probe_ie = NULL;
- wpa_s->mlme.extra_probe_ie_len = 0;
-
- if (ies == NULL)
- return 0;
-
- wpa_s->mlme.extra_probe_ie = os_malloc(ies_len);
- if (wpa_s->mlme.extra_probe_ie == NULL)
- return -1;
-
- os_memcpy(wpa_s->mlme.extra_probe_ie, ies, ies_len);
- wpa_s->mlme.extra_probe_ie_len = ies_len;
-
- return 0;
-}
projects / mech_eap.git / blobdiff