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https://github.com/vanhoefm/fragattacks.git
synced 2024-11-25 00:38:24 -05:00
Clean up wpa_supplicant_event() with deauth/disassoc helper functions
wpa_supplicant_event() has grown overly large, so it is useful to split it into smaller pieces. Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen
parent
fdae3c40f6
commit
d7df0fa727
@ -2430,12 +2430,141 @@ static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
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}
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static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
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u16 reason_code, int locally_generated,
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const u8 *ie, size_t ie_len, int deauth)
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{
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#ifdef CONFIG_AP
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if (wpa_s->ap_iface && addr) {
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hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
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return;
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}
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if (wpa_s->ap_iface) {
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wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
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return;
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}
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#endif /* CONFIG_AP */
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wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
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if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
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((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
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(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
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eapol_sm_failed(wpa_s->eapol)))
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wpas_auth_failed(wpa_s);
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#ifdef CONFIG_P2P
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if (deauth && ie && ie_len > 0) {
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if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
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locally_generated) > 0) {
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/*
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* The interface was removed, so cannot continue
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* processing any additional operations after this.
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*/
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return;
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}
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}
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#endif /* CONFIG_P2P */
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wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
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locally_generated);
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}
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static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
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struct disassoc_info *info)
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{
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u16 reason_code = 0;
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int locally_generated = 0;
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const u8 *addr = NULL;
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const u8 *ie = NULL;
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size_t ie_len = 0;
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wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
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if (info) {
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addr = info->addr;
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ie = info->ie;
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ie_len = info->ie_len;
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reason_code = info->reason_code;
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locally_generated = info->locally_generated;
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wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
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locally_generated ? " (locally generated)" : "");
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if (addr)
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wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
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MAC2STR(addr));
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wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
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ie, ie_len);
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}
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#ifdef CONFIG_AP
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if (wpa_s->ap_iface && info && info->addr) {
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hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
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return;
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}
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if (wpa_s->ap_iface) {
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wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
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return;
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}
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#endif /* CONFIG_AP */
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#ifdef CONFIG_P2P
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if (info) {
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wpas_p2p_disassoc_notif(
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wpa_s, info->addr, reason_code, info->ie, info->ie_len,
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locally_generated);
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}
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#endif /* CONFIG_P2P */
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if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
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sme_event_disassoc(wpa_s, info);
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wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
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ie, ie_len, 0);
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}
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static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
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struct deauth_info *info)
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{
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u16 reason_code = 0;
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int locally_generated = 0;
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const u8 *addr = NULL;
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const u8 *ie = NULL;
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size_t ie_len = 0;
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wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
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if (info) {
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addr = info->addr;
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ie = info->ie;
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ie_len = info->ie_len;
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reason_code = info->reason_code;
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locally_generated = info->locally_generated;
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wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
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reason_code,
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locally_generated ? " (locally generated)" : "");
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if (addr) {
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wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
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MAC2STR(addr));
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}
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wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
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ie, ie_len);
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}
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wpa_reset_ft_completed(wpa_s->wpa);
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wpas_event_disconnect(wpa_s, addr, reason_code,
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locally_generated, ie, ie_len, 1);
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}
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void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
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union wpa_event_data *data)
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{
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struct wpa_supplicant *wpa_s = ctx;
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u16 reason_code = 0;
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int locally_generated = 0;
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if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
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event != EVENT_INTERFACE_ENABLED &&
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@ -2474,109 +2603,12 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
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wpa_supplicant_event_assoc(wpa_s, data);
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break;
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case EVENT_DISASSOC:
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wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
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if (data) {
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wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
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data->disassoc_info.reason_code,
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data->disassoc_info.locally_generated ?
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" (locally generated)" : "");
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if (data->disassoc_info.addr)
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wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
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MAC2STR(data->disassoc_info.addr));
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}
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#ifdef CONFIG_AP
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if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
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hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
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data->disassoc_info.addr);
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break;
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}
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if (wpa_s->ap_iface) {
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wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
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"AP mode");
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break;
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}
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#endif /* CONFIG_AP */
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if (data) {
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reason_code = data->disassoc_info.reason_code;
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locally_generated =
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data->disassoc_info.locally_generated;
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wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
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data->disassoc_info.ie,
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data->disassoc_info.ie_len);
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#ifdef CONFIG_P2P
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wpas_p2p_disassoc_notif(
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wpa_s, data->disassoc_info.addr, reason_code,
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data->disassoc_info.ie,
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data->disassoc_info.ie_len,
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locally_generated);
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#endif /* CONFIG_P2P */
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}
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if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
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sme_event_disassoc(wpa_s, data);
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/* fall through */
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wpas_event_disassoc(wpa_s,
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data ? &data->disassoc_info : NULL);
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break;
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case EVENT_DEAUTH:
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if (event == EVENT_DEAUTH) {
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wpa_dbg(wpa_s, MSG_DEBUG,
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"Deauthentication notification");
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if (data) {
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reason_code = data->deauth_info.reason_code;
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locally_generated =
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data->deauth_info.locally_generated;
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wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
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data->deauth_info.reason_code,
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data->deauth_info.locally_generated ?
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" (locally generated)" : "");
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if (data->deauth_info.addr) {
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wpa_dbg(wpa_s, MSG_DEBUG, " * address "
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MACSTR,
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MAC2STR(data->deauth_info.
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addr));
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}
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wpa_hexdump(MSG_DEBUG,
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"Deauthentication frame IE(s)",
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data->deauth_info.ie,
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data->deauth_info.ie_len);
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}
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wpa_reset_ft_completed(wpa_s->wpa);
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}
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#ifdef CONFIG_AP
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if (wpa_s->ap_iface && data && data->deauth_info.addr) {
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hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
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data->deauth_info.addr);
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break;
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}
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if (wpa_s->ap_iface) {
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wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
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"AP mode");
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break;
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}
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#endif /* CONFIG_AP */
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wpa_supplicant_event_disassoc(wpa_s, reason_code,
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locally_generated);
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if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
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((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
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(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
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eapol_sm_failed(wpa_s->eapol)))
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wpas_auth_failed(wpa_s);
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#ifdef CONFIG_P2P
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if (event == EVENT_DEAUTH && data) {
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if (wpas_p2p_deauth_notif(wpa_s,
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data->deauth_info.addr,
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reason_code,
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data->deauth_info.ie,
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data->deauth_info.ie_len,
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locally_generated) > 0) {
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/*
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* The interface was removed, so cannot
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* continue processing any additional
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* operations after this.
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*/
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break;
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}
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}
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#endif /* CONFIG_P2P */
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wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
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locally_generated);
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wpas_event_deauth(wpa_s,
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data ? &data->deauth_info : NULL);
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break;
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case EVENT_MICHAEL_MIC_FAILURE:
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wpa_supplicant_event_michael_mic_failure(wpa_s, data);
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@ -805,7 +805,7 @@ void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
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void sme_event_disassoc(struct wpa_supplicant *wpa_s,
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union wpa_event_data *data)
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struct disassoc_info *info)
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{
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wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
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if (wpa_s->sme.prev_bssid_set) {
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@ -25,7 +25,7 @@ void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
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void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
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union wpa_event_data *data);
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void sme_event_disassoc(struct wpa_supplicant *wpa_s,
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union wpa_event_data *data);
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struct disassoc_info *info);
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void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
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const u8 *da, u16 reason_code);
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void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
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@ -74,7 +74,7 @@ static inline void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
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}
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static inline void sme_event_disassoc(struct wpa_supplicant *wpa_s,
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union wpa_event_data *data)
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struct disassoc_info *info)
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{
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}
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