mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-28 10:18:21 -05:00
Move assoc param setting into a helper function
This is needed to be able to use the same implementation for updating the connection parameters in the driver during an association. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Vidyullatha Kanchanapally
Jouni Malinen
parent
084131c850
commit
d2ba0d719e
@ -2322,116 +2322,21 @@ static size_t wpas_add_fils_hlp_req(struct wpa_supplicant *wpa_s, u8 *ie_buf,
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#endif /* CONFIG_FILS */
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static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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static u8 * wpas_populate_assoc_ies(
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struct wpa_supplicant *wpa_s,
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struct wpa_bss *bss, struct wpa_ssid *ssid,
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struct wpa_driver_associate_params *params)
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{
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struct wpa_connect_work *cwork = work->ctx;
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struct wpa_bss *bss = cwork->bss;
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struct wpa_ssid *ssid = cwork->ssid;
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struct wpa_supplicant *wpa_s = work->wpa_s;
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u8 *wpa_ie;
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size_t max_wpa_ie_len = 500;
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size_t wpa_ie_len;
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int use_crypt, ret, i, bssid_changed;
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int algs = WPA_AUTH_ALG_OPEN;
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unsigned int cipher_pairwise, cipher_group, cipher_group_mgmt;
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struct wpa_driver_associate_params params;
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int wep_keys_set = 0;
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int assoc_failed = 0;
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struct wpa_ssid *old_ssid;
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u8 prev_bssid[ETH_ALEN];
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#ifdef CONFIG_HT_OVERRIDES
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struct ieee80211_ht_capabilities htcaps;
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struct ieee80211_ht_capabilities htcaps_mask;
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#endif /* CONFIG_HT_OVERRIDES */
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#ifdef CONFIG_VHT_OVERRIDES
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struct ieee80211_vht_capabilities vhtcaps;
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struct ieee80211_vht_capabilities vhtcaps_mask;
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#endif /* CONFIG_VHT_OVERRIDES */
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#ifdef CONFIG_FILS
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const u8 *realm, *username, *rrk;
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size_t realm_len, username_len, rrk_len;
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u16 next_seq_num;
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struct fils_hlp_req *req;
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#endif /* CONFIG_FILS */
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if (deinit) {
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if (work->started) {
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wpa_s->connect_work = NULL;
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/* cancel possible auth. timeout */
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eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
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NULL);
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}
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wpas_connect_work_free(cwork);
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return;
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}
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wpa_s->connect_work = work;
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if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
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wpas_network_disabled(wpa_s, ssid)) {
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wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
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wpas_connect_work_done(wpa_s);
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return;
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}
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os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
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os_memset(¶ms, 0, sizeof(params));
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wpa_s->reassociate = 0;
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wpa_s->eap_expected_failure = 0;
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if (bss &&
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(!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
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#ifdef CONFIG_IEEE80211R
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const u8 *ie, *md = NULL;
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#endif /* CONFIG_IEEE80211R */
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wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
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" (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
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wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
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bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
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os_memset(wpa_s->bssid, 0, ETH_ALEN);
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os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
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if (bssid_changed)
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wpas_notify_bssid_changed(wpa_s);
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#ifdef CONFIG_IEEE80211R
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ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
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if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
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md = ie + 2;
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wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
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if (md) {
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/* Prepare for the next transition */
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wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
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}
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#endif /* CONFIG_IEEE80211R */
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#ifdef CONFIG_WPS
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} else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
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wpa_s->conf->ap_scan == 2 &&
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(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
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/* Use ap_scan==1 style network selection to find the network
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*/
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wpas_connect_work_done(wpa_s);
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wpa_s->scan_req = MANUAL_SCAN_REQ;
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wpa_s->reassociate = 1;
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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return;
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#endif /* CONFIG_WPS */
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} else {
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wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
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wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
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if (bss)
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os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
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else
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os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
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}
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if (!wpa_s->pno)
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wpa_supplicant_cancel_sched_scan(wpa_s);
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wpa_supplicant_cancel_scan(wpa_s);
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/* Starting new association, so clear the possibly used WPA IE from the
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* previous association. */
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wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
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#ifdef CONFIG_FILS
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dl_list_for_each(req, &wpa_s->fils_hlp_req, struct fils_hlp_req,
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list) {
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max_wpa_ie_len += 3 + 2 * ETH_ALEN + 6 + wpabuf_len(req->pkt) +
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@ -2444,8 +2349,7 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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wpa_printf(MSG_ERROR,
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"Failed to allocate connect IE buffer for %lu bytes",
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(unsigned long) max_wpa_ie_len);
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wpas_connect_work_done(wpa_s);
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return;
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return NULL;
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}
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if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
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@ -2471,9 +2375,8 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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wpa_ie, &wpa_ie_len)) {
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wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
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"key management and encryption suites");
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wpas_connect_work_done(wpa_s);
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os_free(wpa_ie);
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return;
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return NULL;
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}
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} else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
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wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
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@ -2492,9 +2395,8 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
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"key management and encryption suites (no "
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"scan results)");
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wpas_connect_work_done(wpa_s);
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os_free(wpa_ie);
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return;
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return NULL;
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}
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#ifdef CONFIG_WPS
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} else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
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@ -2508,9 +2410,9 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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wpabuf_free(wps_ie);
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wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
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if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
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params.wps = WPS_MODE_PRIVACY;
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params->wps = WPS_MODE_PRIVACY;
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else
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params.wps = WPS_MODE_OPEN;
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params->wps = WPS_MODE_OPEN;
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wpa_s->wpa_proto = 0;
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#endif /* CONFIG_WPS */
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} else {
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@ -2539,13 +2441,13 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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&username_len, &realm, &realm_len,
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&next_seq_num, &rrk, &rrk_len) == 0) {
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algs = WPA_AUTH_ALG_FILS;
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params.fils_erp_username = username;
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params.fils_erp_username_len = username_len;
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params.fils_erp_realm = realm;
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params.fils_erp_realm_len = realm_len;
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params.fils_erp_next_seq_num = next_seq_num;
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params.fils_erp_rrk = rrk;
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params.fils_erp_rrk_len = rrk_len;
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params->fils_erp_username = username;
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params->fils_erp_username_len = username_len;
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params->fils_erp_realm = realm;
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params->fils_erp_realm_len = realm_len;
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params->fils_erp_next_seq_num = next_seq_num;
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params->fils_erp_rrk = rrk;
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params->fils_erp_rrk_len = rrk_len;
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}
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#endif /* CONFIG_FILS */
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#endif /* IEEE8021X_EAPOL */
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@ -2712,6 +2614,120 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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}
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#endif /* CONFIG_OWE */
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params->wpa_ie = wpa_ie;
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params->wpa_ie_len = wpa_ie_len;
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params->auth_alg = algs;
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return wpa_ie;
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}
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static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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{
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struct wpa_connect_work *cwork = work->ctx;
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struct wpa_bss *bss = cwork->bss;
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struct wpa_ssid *ssid = cwork->ssid;
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struct wpa_supplicant *wpa_s = work->wpa_s;
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u8 *wpa_ie;
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int use_crypt, ret, i, bssid_changed;
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unsigned int cipher_pairwise, cipher_group, cipher_group_mgmt;
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struct wpa_driver_associate_params params;
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int wep_keys_set = 0;
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int assoc_failed = 0;
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struct wpa_ssid *old_ssid;
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u8 prev_bssid[ETH_ALEN];
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#ifdef CONFIG_HT_OVERRIDES
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struct ieee80211_ht_capabilities htcaps;
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struct ieee80211_ht_capabilities htcaps_mask;
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#endif /* CONFIG_HT_OVERRIDES */
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#ifdef CONFIG_VHT_OVERRIDES
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struct ieee80211_vht_capabilities vhtcaps;
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struct ieee80211_vht_capabilities vhtcaps_mask;
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#endif /* CONFIG_VHT_OVERRIDES */
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if (deinit) {
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if (work->started) {
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wpa_s->connect_work = NULL;
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/* cancel possible auth. timeout */
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eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
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NULL);
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}
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wpas_connect_work_free(cwork);
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return;
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}
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wpa_s->connect_work = work;
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if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
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wpas_network_disabled(wpa_s, ssid)) {
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wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
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wpas_connect_work_done(wpa_s);
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return;
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}
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os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
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os_memset(¶ms, 0, sizeof(params));
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wpa_s->reassociate = 0;
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wpa_s->eap_expected_failure = 0;
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if (bss &&
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(!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
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#ifdef CONFIG_IEEE80211R
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const u8 *ie, *md = NULL;
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#endif /* CONFIG_IEEE80211R */
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wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
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" (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
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wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
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bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
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os_memset(wpa_s->bssid, 0, ETH_ALEN);
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os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
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if (bssid_changed)
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wpas_notify_bssid_changed(wpa_s);
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#ifdef CONFIG_IEEE80211R
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ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
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if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
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md = ie + 2;
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wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
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if (md) {
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/* Prepare for the next transition */
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wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
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}
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#endif /* CONFIG_IEEE80211R */
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#ifdef CONFIG_WPS
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} else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
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wpa_s->conf->ap_scan == 2 &&
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(ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
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/* Use ap_scan==1 style network selection to find the network
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*/
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wpas_connect_work_done(wpa_s);
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wpa_s->scan_req = MANUAL_SCAN_REQ;
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wpa_s->reassociate = 1;
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wpa_supplicant_req_scan(wpa_s, 0, 0);
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return;
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#endif /* CONFIG_WPS */
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} else {
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wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
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wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
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if (bss)
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os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
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else
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os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
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}
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if (!wpa_s->pno)
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wpa_supplicant_cancel_sched_scan(wpa_s);
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wpa_supplicant_cancel_scan(wpa_s);
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/* Starting new association, so clear the possibly used WPA IE from the
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* previous association. */
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wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
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wpa_ie = wpas_populate_assoc_ies(wpa_s, bss, ssid, ¶ms);
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if (!wpa_ie) {
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wpas_connect_work_done(wpa_s);
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return;
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}
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wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
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use_crypt = 1;
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cipher_pairwise = wpa_s->pairwise_cipher;
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@ -2796,14 +2812,11 @@ static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
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params.beacon_int = wpa_s->conf->beacon_int;
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}
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params.wpa_ie = wpa_ie;
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params.wpa_ie_len = wpa_ie_len;
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params.pairwise_suite = cipher_pairwise;
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params.group_suite = cipher_group;
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params.mgmt_group_suite = cipher_group_mgmt;
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params.key_mgmt_suite = wpa_s->key_mgmt;
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params.wpa_proto = wpa_s->wpa_proto;
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params.auth_alg = algs;
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wpa_s->auth_alg = params.auth_alg;
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params.mode = ssid->mode;
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params.bg_scan_period = ssid->bg_scan_period;
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