2 * WPA Supplicant - Windows/NDIS driver interface - event processing
3 * Copyright (c) 2004-2005, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
21 /* Keep this event processing in a separate file and without WinPcap headers to
22 * avoid conflicts with some of the header files. */
24 typedef struct _ADAPTER * LPADAPTER;
25 #include "driver_ndis.h"
28 void wpa_driver_ndis_event_connect(struct wpa_driver_ndis_data *drv);
29 void wpa_driver_ndis_event_disconnect(struct wpa_driver_ndis_data *drv);
30 void wpa_driver_ndis_event_media_specific(struct wpa_driver_ndis_data *drv,
31 const u8 *data, size_t data_len);
32 void wpa_driver_ndis_event_adapter_arrival(struct wpa_driver_ndis_data *drv);
33 void wpa_driver_ndis_event_adapter_removal(struct wpa_driver_ndis_data *drv);
36 enum event_types { EVENT_CONNECT, EVENT_DISCONNECT,
37 EVENT_MEDIA_SPECIFIC, EVENT_ADAPTER_ARRIVAL,
38 EVENT_ADAPTER_REMOVAL };
41 * enum event_types (as int, i.e., 4 octets)
42 * data length (2 octets (big endian), optional)
43 * data (variable len, optional)
47 static void wpa_driver_ndis_event_process(struct wpa_driver_ndis_data *drv,
50 u8 *pos, *data = NULL;
51 enum event_types type;
54 wpa_hexdump(MSG_MSGDUMP, "NDIS: received event data", buf, len);
55 if (len < sizeof(int))
57 type = *((int *) buf);
58 pos = buf + sizeof(int);
59 wpa_printf(MSG_DEBUG, "NDIS: event - type %d", type);
61 if (buf + len - pos > 2) {
62 data_len = (int) *pos++ << 8;
64 if (data_len > (size_t) (buf + len - pos)) {
65 wpa_printf(MSG_DEBUG, "NDIS: event data overflow");
69 wpa_hexdump(MSG_MSGDUMP, "NDIS: event data", data, data_len);
74 wpa_driver_ndis_event_connect(drv);
76 case EVENT_DISCONNECT:
77 wpa_driver_ndis_event_disconnect(drv);
79 case EVENT_MEDIA_SPECIFIC:
80 wpa_driver_ndis_event_media_specific(drv, data, data_len);
82 case EVENT_ADAPTER_ARRIVAL:
83 wpa_driver_ndis_event_adapter_arrival(drv);
85 case EVENT_ADAPTER_REMOVAL:
86 wpa_driver_ndis_event_adapter_removal(drv);
92 void wpa_driver_ndis_event_pipe_cb(void *eloop_data, void *user_data)
94 struct wpa_driver_ndis_data *drv = eloop_data;
98 ResetEvent(drv->event_avail);
99 if (ReadFile(drv->events_pipe, buf, sizeof(buf), &len, NULL))
100 wpa_driver_ndis_event_process(drv, buf, len);
102 wpa_printf(MSG_DEBUG, "%s: ReadFile() failed: %d", __func__,
103 (int) GetLastError());