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Viewing changes to driver_ndis_.c

  • Committer: Bazaar Package Importer
  • Author(s): Reinhard Tartler, Alexander Sack
  • Date: 2007-08-26 16:06:57 UTC
  • mfrom: (1.1.9 upstream)
  • Revision ID: james.westby@ubuntu.com-20070826160657-2m8pxoweuxe8f93t
Tags: 0.6.0+0.5.8-0ubuntu1
https://launchpad.net/bugs/140763
https://launchpad.net/bugs/141233
* New upstream release
* remove patch 11_erroneous_manpage_ref, applied upstream
* remove patch 25_wpas_dbus_unregister_iface_fix, applied upstream

[ Alexander Sack ]
* bumping upstream version to replace development version 0.6.0 with
  this package from stable release branch.
* attempt to fix wierd timeout and high latency issues by going
  back to stable upstream version (0.5.9) (LP: #140763,
  LP: #141233).

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driver_ndis_.c
 
1
/*
 
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 * WPA Supplicant - Windows/NDIS driver interface - event processing
 
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 * Copyright (c) 2004-2005, Jouni Malinen <j@w1.fi>
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License version 2 as
 
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 * published by the Free Software Foundation.
 
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 *
 
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 * Alternatively, this software may be distributed under the terms of BSD
 
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 * license.
 
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 *
 
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 * See README and COPYING for more details.
 
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 */
 
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#include "includes.h"
 
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#include "common.h"
 
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#include "driver.h"
 
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#include "wpa_supplicant.h"
 
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#include "l2_packet.h"
 
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#include "eloop.h"
 
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#include "wpa.h"
 
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/* Keep this event processing in a separate file and without WinPcap headers to
 
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 * avoid conflicts with some of the header files. */
 
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struct _ADAPTER;
 
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typedef struct _ADAPTER * LPADAPTER;
 
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#include "driver_ndis.h"
 
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void wpa_driver_ndis_event_connect(struct wpa_driver_ndis_data *drv);
 
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void wpa_driver_ndis_event_disconnect(struct wpa_driver_ndis_data *drv);
 
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void wpa_driver_ndis_event_media_specific(struct wpa_driver_ndis_data *drv,
 
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                                          const u8 *data, size_t data_len);
 
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void wpa_driver_ndis_event_adapter_arrival(struct wpa_driver_ndis_data *drv);
 
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void wpa_driver_ndis_event_adapter_removal(struct wpa_driver_ndis_data *drv);
 
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enum event_types { EVENT_CONNECT, EVENT_DISCONNECT,
 
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                   EVENT_MEDIA_SPECIFIC, EVENT_ADAPTER_ARRIVAL,
 
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                   EVENT_ADAPTER_REMOVAL };
 
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/* Event data:
 
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 * enum event_types (as int, i.e., 4 octets)
 
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 * data length (2 octets (big endian), optional)
 
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 * data (variable len, optional)
 
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 */
 
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static void wpa_driver_ndis_event_process(struct wpa_driver_ndis_data *drv,
 
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                                          u8 *buf, size_t len)
 
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{
 
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        u8 *pos, *data = NULL;
 
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        enum event_types type;
 
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        size_t data_len = 0;
 
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        wpa_hexdump(MSG_MSGDUMP, "NDIS: received event data", buf, len);
 
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        if (len < sizeof(int))
 
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                return;
 
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        type = *((int *) buf);
 
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        pos = buf + sizeof(int);
 
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        wpa_printf(MSG_DEBUG, "NDIS: event - type %d", type);
 
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        if (buf + len - pos > 2) {
 
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                data_len = (int) *pos++ << 8;
 
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                data_len += *pos++;
 
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                if (data_len > (size_t) (buf + len - pos)) {
 
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                        wpa_printf(MSG_DEBUG, "NDIS: event data overflow");
 
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                        return;
 
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                }
 
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                data = pos;
 
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                wpa_hexdump(MSG_MSGDUMP, "NDIS: event data", data, data_len);
 
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        }
 
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        switch (type) {
 
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        case EVENT_CONNECT:
 
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                wpa_driver_ndis_event_connect(drv);
 
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                break;
 
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        case EVENT_DISCONNECT:
 
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                wpa_driver_ndis_event_disconnect(drv);
 
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                break;
 
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        case EVENT_MEDIA_SPECIFIC:
 
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                wpa_driver_ndis_event_media_specific(drv, data, data_len);
 
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                break;
 
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        case EVENT_ADAPTER_ARRIVAL:
 
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                wpa_driver_ndis_event_adapter_arrival(drv);
 
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                break;
 
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        case EVENT_ADAPTER_REMOVAL:
 
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                wpa_driver_ndis_event_adapter_removal(drv);
 
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                break;
 
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        }
 
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}
 
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void wpa_driver_ndis_event_pipe_cb(void *eloop_data, void *user_data)
 
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{
 
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        struct wpa_driver_ndis_data *drv = eloop_data;
 
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        u8 buf[512];
 
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        DWORD len;
 
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        ResetEvent(drv->event_avail);
 
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        if (ReadFile(drv->events_pipe, buf, sizeof(buf), &len, NULL))
 
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                wpa_driver_ndis_event_process(drv, buf, len);
 
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        else {
 
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                wpa_printf(MSG_DEBUG, "%s: ReadFile() failed: %d", __func__,
 
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                           (int) GetLastError());
 
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        }
 
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}