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wireshark/airpcap_loader.c

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/* airpcap_loader.c
*
* $Id$
*
* Giorgio Tino <giorgio.tino@cacetech.com>
* Copyright (c) CACE Technologies, LLC 2006
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2000 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef _WIN32
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_AIRPCAP
#ifdef HAVE_LIBPCAP
#include <glib.h>
#include <gmodule.h>
#include <wtap.h>
#include <pcap.h>
#endif
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/prefs-int.h>
#include <epan/crypt/wep-wpadefs.h>
#include <epan/crypt/airpdcap_ws.h>
#include <epan/strutil.h>
#include <epan/frequency-utils.h>
#include "capture_ui_utils.h"
#include "simple_dialog.h"
#include <airpcap.h>
#include "airpcap_loader.h"
/*
* We load dynamically the dag library in order link it only when
* it's present on the system
*/
static HMODULE AirpcapLib = NULL;
/*
* Set to TRUE if the DLL was successfully loaded AND all functions
* are present.
*/
static gboolean AirpcapLoaded = FALSE;
static int AirpcapVersion = 3;
static AirpcapGetLastErrorHandler g_PAirpcapGetLastError;
static AirpcapGetDeviceListHandler g_PAirpcapGetDeviceList;
static AirpcapFreeDeviceListHandler g_PAirpcapFreeDeviceList;
static AirpcapOpenHandler g_PAirpcapOpen;
static AirpcapCloseHandler g_PAirpcapClose;
static AirpcapGetLinkTypeHandler g_PAirpcapGetLinkType;
static AirpcapSetLinkTypeHandler g_PAirpcapSetLinkType;
static AirpcapSetKernelBufferHandler g_PAirpcapSetKernelBuffer;
static AirpcapSetFilterHandler g_PAirpcapSetFilter;
static AirpcapGetMacAddressHandler g_PAirpcapGetMacAddress;
static AirpcapSetMinToCopyHandler g_PAirpcapSetMinToCopy;
static AirpcapGetReadEventHandler g_PAirpcapGetReadEvent;
static AirpcapReadHandler g_PAirpcapRead;
static AirpcapGetStatsHandler g_PAirpcapGetStats;
static AirpcapTurnLedOnHandler g_PAirpcapTurnLedOn;
static AirpcapTurnLedOffHandler g_PAirpcapTurnLedOff;
static AirpcapGetDeviceChannelHandler g_PAirpcapGetDeviceChannel;
static AirpcapSetDeviceChannelHandler g_PAirpcapSetDeviceChannel;
static AirpcapGetFcsPresenceHandler g_PAirpcapGetFcsPresence;
static AirpcapSetFcsPresenceHandler g_PAirpcapSetFcsPresence;
static AirpcapGetFcsValidationHandler g_PAirpcapGetFcsValidation;
static AirpcapSetFcsValidationHandler g_PAirpcapSetFcsValidation;
static AirpcapGetDeviceKeysHandler g_PAirpcapGetDeviceKeys;
static AirpcapSetDeviceKeysHandler g_PAirpcapSetDeviceKeys;
static AirpcapGetDriverKeysHandler g_PAirpcapGetDriverKeys;
static AirpcapSetDriverKeysHandler g_PAirpcapSetDriverKeys;
static AirpcapGetDecryptionStateHandler g_PAirpcapGetDecryptionState;
static AirpcapSetDecryptionStateHandler g_PAirpcapSetDecryptionState;
static AirpcapGetDriverDecryptionStateHandler g_PAirpcapGetDriverDecryptionState;
static AirpcapSetDriverDecryptionStateHandler g_PAirpcapSetDriverDecryptionState;
static AirpcapStoreCurConfigAsAdapterDefaultHandler g_PAirpcapStoreCurConfigAsAdapterDefault;
static AirpcapGetVersionHandler g_PAirpcapGetVersion;
static AirpcapSetDeviceChannelExHandler g_PAirpcapSetDeviceChannelEx;
static AirpcapGetDeviceChannelExHandler g_PAirpcapGetDeviceChannelEx;
static AirpcapGetDeviceSupportedChannelsHandler g_PAirpcapGetDeviceSupportedChannels;
/* Airpcap interface list */
GList *airpcap_if_list = NULL;
/* Airpcap current selected interface */
airpcap_if_info_t *airpcap_if_selected = NULL;
/* Airpcap current active interface */
airpcap_if_info_t *airpcap_if_active = NULL;
/* WLAN preferences pointer */
module_t *wlan_prefs = NULL;
Dot11Channel *pSupportedChannels;
ULONG numSupportedChannels;
static AirpcapChannelInfo LegacyChannels[] =
{
{2412, 0, {0,0,0}},
{2417, 0, {0,0,0}},
{2422, 0, {0,0,0}},
{2427, 0, {0,0,0}},
{2432, 0, {0,0,0}},
{2437, 0, {0,0,0}},
{2442, 0, {0,0,0}},
{2447, 0, {0,0,0}},
{2452, 0, {0,0,0}},
{2457, 0, {0,0,0}},
{2462, 0, {0,0,0}},
{2467, 0, {0,0,0}},
{2472, 0, {0,0,0}},
{2484, 0, {0,0,0}},
};
static ULONG num_legacy_channels = 14;
/*
* Callback used by the load_wlan_keys() routine in order to read a WEP decryption key
*/
static guint
get_wep_key(pref_t *pref, gpointer ud _U_)
{
gchar *my_string = NULL;
keys_cb_data_t* user_data;
decryption_key_t* new_key;
/* Retrieve user data info */
user_data = (keys_cb_data_t*)ud;
if (g_strncasecmp(pref->name, "wep_key", 7) == 0 && pref->type == PREF_STRING)
{
my_string = g_strdup(*pref->varp.string);
/* Here we have the string describing the key... */
new_key = parse_key_string(my_string);
if( new_key != NULL)
{
/* Key is added only if not null ... */
user_data->list = g_list_append(user_data->list,new_key);
user_data->number_of_keys++;
user_data->current_index++;
}
}
return 0;
}
/* Returs TRUE if the WEP key is valid, false otherwise */
gboolean
wep_key_is_valid(char* key)
{
GString *new_key_string;
guint i=0;
if(key == NULL)
return FALSE;
new_key_string = g_string_new(key);
if( ((new_key_string->len) > WEP_KEY_MAX_CHAR_SIZE) || ((new_key_string->len) < 2))
{
g_string_free(new_key_string,FALSE);
return FALSE;
}
if((new_key_string->len % 2) != 0)
{
g_string_free(new_key_string,FALSE);
return FALSE;
}
for(i = 0; i < new_key_string->len; i++)
{
if(!g_ascii_isxdigit(new_key_string->str[i]))
{
g_string_free(new_key_string,FALSE);
return FALSE;
}
}
g_string_free(new_key_string,FALSE);
return TRUE;
}
/* Callback used by the save_wlan_keys() routine in order to write a decryption key */
static guint
set_wep_key(pref_t *pref, gpointer ud _U_)
{
gchar *my_string = NULL;
keys_cb_data_t* user_data;
gint wep_key_number = 0;
decryption_key_t* new_key;
/* Retrieve user data info */
user_data = (keys_cb_data_t*)ud;
if (g_strncasecmp(pref->name, "wep_key", 7) == 0 && pref->type == PREF_STRING)
{
/* Ok, the pref we're gonna set is a wep_key ... but what number? */
sscanf(pref->name,"wep_key%d",&wep_key_number);
if(user_data->current_index < user_data->number_of_keys)
{
if(wep_key_number == (user_data->current_index+1))
{
/* Retrieve the nth decryption_key_t structure pointer */
new_key = (decryption_key_t*)g_list_nth_data(user_data->list,user_data->current_index);
/* Free the old key string */
g_free((void *)*pref->varp.string);
/* Create the new string describing the decryption key */
my_string = get_key_string(new_key);
/* Duplicate the string, and assign it to the variable pointer */
*pref->varp.string = (void *)g_strdup(my_string);
/* Free the previously allocated string */
g_free(my_string);
}
}
else /* If the number of keys has been reduced somehow, we need to delete all the other keys
* (remember that the new ones have been probably overwritten)
*/
{
g_free((void *)*pref->varp.string);
*pref->varp.string = (void *)g_strdup(""); /* Do not just free memory!!! Put an 'empty' string! */
}
user_data->current_index++;
}
return 0;
}
/*
* Function used to read the Decryption Keys from the preferences and store them
* properly into the airpcap adapter.
*/
BOOL
load_wlan_driver_wep_keys()
{
keys_cb_data_t* user_data;
guint i;
gchar *tmp = NULL;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Allocate a structure used to keep infos between the callbacks */
user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
/* Fill the structure */
user_data->list = NULL;
user_data->current_index = 0;
user_data->number_of_keys= 0; /* Still unknown */
/* Run the callback on each 802.11 preference */
prefs_pref_foreach(wlan_prefs, get_wep_key, (gpointer)user_data);
/* Now the key list should be filled */
/*
* Signal that we've changed things, and run the 802.11 dissector's
* callback
*/
wlan_prefs->prefs_changed = TRUE;
prefs_apply(wlan_prefs);
write_wlan_driver_wep_keys_to_registry(user_data->list);
/* FREE MEMORY */
/* free the WEP key string */
for(i=0;i<g_list_length(user_data->list);i++)
{
g_free(g_list_nth(user_data->list,i)->data);
}
/* free the (empty) list */
g_list_free(user_data->list);
/* free the user_data structure */
g_free(user_data);
/* airpcap_if_info_free(fake_info_if); */
return TRUE;
}
/*
* This function will tell the airpcap driver the key list to use
* This will be stored into the registry...
*/
BOOL
write_wlan_wep_keys_to_registry(airpcap_if_info_t* info_if, GList* key_list)
{
UINT i,j;
GString *new_key;
gchar s[3];
PAirpcapKeysCollection KeysCollection;
ULONG KeysCollectionSize;
UCHAR KeyByte;
UINT keys_in_list = 0;
decryption_key_t* key_item = NULL;
keys_in_list = g_list_length(key_list);
/*
* Save the encryption keys, if we have any of them
*/
KeysCollectionSize = 0;
/*
* Calculate the size of the keys collection
*/
KeysCollectionSize = sizeof(AirpcapKeysCollection) + keys_in_list * sizeof(AirpcapKey);
/*
* Allocate the collection
*/
KeysCollection = (PAirpcapKeysCollection)g_malloc(KeysCollectionSize);
if(!KeysCollection)
{
return FALSE;
}
/*
* Populate the key collection
*/
KeysCollection->nKeys = keys_in_list;
for(i = 0; i < keys_in_list; i++)
{
KeysCollection->Keys[i].KeyType = AIRPDCAP_KEY_TYPE_WEP;
/* Retrieve the Item corresponding to the i-th key */
key_item = (decryption_key_t*)g_list_nth_data(key_list,i);
new_key = g_string_new(key_item->key->str);
KeysCollection->Keys[i].KeyLen = new_key->len / 2;
memset(&KeysCollection->Keys[i].KeyData, 0, sizeof(KeysCollection->Keys[i].KeyData));
for(j = 0 ; j < new_key->len; j += 2)
{
s[0] = new_key->str[j];
s[1] = new_key->str[j+1];
s[2] = '\0';
KeyByte = (UCHAR)strtol(s, NULL, 16);
KeysCollection->Keys[i].KeyData[j / 2] = KeyByte;
}
g_string_free(new_key,TRUE);
}
/*
* Free the old adapter key collection!
*/
if(info_if->keysCollection != NULL)
g_free(info_if->keysCollection);
/*
* Set this collection ad the new one
*/
info_if->keysCollection = KeysCollection;
info_if->keysCollectionSize = KeysCollectionSize;
/*
* Configuration must be saved
*/
info_if->saved = FALSE;
/*
* Write down the changes to the registry
*/
airpcap_save_selected_if_configuration(info_if);
return TRUE;
}
/*
* This function will tell the airpcap driver the key list to use
* This will be stored into the registry...
*/
BOOL
write_wlan_driver_wep_keys_to_registry(GList* key_list)
{
UINT i,j,k,n,y;
GString *new_key;
gchar s[3];
PAirpcapKeysCollection KeysCollection;
ULONG KeysCollectionSize;
UCHAR KeyByte;
UINT keys_in_list = 0;
decryption_key_t* key_item = NULL;
airpcap_if_info_t* fake_info_if = NULL;
/* Create the fake_info_if from the first adapter of the list */
fake_info_if = airpcap_driver_fake_if_info_new();
if(fake_info_if == NULL)
return FALSE;
/*
* XXX - When WPA will be supported, change this to: keys_in_list = g_list_length(key_list);
* but right now we will have to count only the WEP keys (or we will have a malloc-mess :-) )
*/
n = g_list_length(key_list);
for(k = 0; k < n; k++ )
if(((decryption_key_t*)g_list_nth_data(key_list,k))->type == AIRPDCAP_KEY_TYPE_WEP)
keys_in_list++;
/*
* Save the encryption keys, if we have any of them
*/
KeysCollectionSize = 0;
/*
* Calculate the size of the keys collection
*/
KeysCollectionSize = sizeof(AirpcapKeysCollection) + keys_in_list * sizeof(AirpcapKey);
/*
* Allocate the collection
*/
KeysCollection = (PAirpcapKeysCollection)g_malloc(KeysCollectionSize);
if(!KeysCollection)
{
return FALSE;
}
/*
* Populate the key collection
*/
KeysCollection->nKeys = keys_in_list;
/*
* XXX - If we have, let's say, six keys, the first three are WEP, then two are WPA, and the
* last is WEP, we have to scroll the whole list (n) but increment the array counter only
* when a WEP key is found (y) .. When WPA will be supported by the driver, I'll have to change
* this
*/
y = 0; /* Current position in the key list */
for(i = 0; i < n; i++)
{
/* Retrieve the Item corresponding to the i-th key */
key_item = (decryption_key_t*)g_list_nth_data(key_list,i);
/*
* XXX - The AIRPDCAP_KEY_TYPE_WEP is the only supportd right now!
* We will have to modify the AirpcapKey structure in order to
* support the other two types! What happens now, is that simply the
* not supported keys will just be discarded (they will be saved in wireshark though)
*/
if(key_item->type == AIRPDCAP_KEY_TYPE_WEP)
{
KeysCollection->Keys[y].KeyType = AIRPDCAP_KEY_TYPE_WEP;
new_key = g_string_new(key_item->key->str);
KeysCollection->Keys[y].KeyLen = new_key->len / 2;
memset(&KeysCollection->Keys[y].KeyData, 0, sizeof(KeysCollection->Keys[y].KeyData));
for(j = 0 ; j < new_key->len; j += 2)
{
s[0] = new_key->str[j];
s[1] = new_key->str[j+1];
s[2] = '\0';
KeyByte = (UCHAR)strtol(s, NULL, 16);
KeysCollection->Keys[y].KeyData[j / 2] = KeyByte;
}
/* XXX - Change when WPA will be supported!!! */
y++;
g_string_free(new_key,TRUE);
}
else if(key_item->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
{
/* XXX - The driver cannot deal with this kind of key yet... */
}
else if(key_item->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
{
/* XXX - The driver cannot deal with this kind of key yet... */
}
}
/*
* Free the old adapter key collection!
*/
if(fake_info_if->keysCollection != NULL)
g_free(fake_info_if->keysCollection);
/*
* Set this collection ad the new one
*/
fake_info_if->keysCollection = KeysCollection;
fake_info_if->keysCollectionSize = KeysCollectionSize;
/*
* Configuration must be saved
*/
fake_info_if->saved = FALSE;
/*
* Write down the changes to the registry
*/
airpcap_save_driver_if_configuration(fake_info_if);
airpcap_if_info_free(fake_info_if);
return TRUE;
}
/*
* Function used to save to the preference file the Decryption Keys.
*/
int
save_wlan_driver_wep_keys()
{
GList* key_list = NULL;
char* tmp_key = NULL;
guint keys_in_list,i;
keys_cb_data_t* user_data;
airpcap_if_info_t* fake_info_if = NULL;
/* Create the fake_info_if from the first adapter of the list */
fake_info_if = airpcap_driver_fake_if_info_new();
if(fake_info_if == NULL)
return FALSE;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Allocate a structure used to keep infos between the callbacks */
user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
/* Number of keys in key list */
/* Number of keys in key list */
if(fake_info_if->keysCollectionSize != 0)
keys_in_list = (guint)(fake_info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
else
keys_in_list = 0;
for(i=0; i<keys_in_list; i++)
{
/* Only if it is a WEP key... */
if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
{
tmp_key = airpcap_get_key_string(fake_info_if->keysCollection->Keys[i]);
key_list = g_list_append(key_list,g_strdup(tmp_key));
g_free(tmp_key);
}
}
/* Now we know the exact number of WEP keys in the list, so store it ... */
keys_in_list = g_list_length(key_list);
/* Fill the structure */
user_data->list = key_list;
user_data->current_index = 0;
user_data->number_of_keys= keys_in_list;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Run the callback on each 802.11 preference */
prefs_pref_foreach(wlan_prefs, set_wep_key, (gpointer)user_data);
/* Signal that we've changed things, and run the 802.11 dissector's
* callback */
wlan_prefs->prefs_changed = TRUE;
/* Apply changes for the specified preference */
prefs_apply(wlan_prefs);
/* FREE MEMORY */
/* free the WEP key string */
for(i=0;i<g_list_length(user_data->list);i++)
{
g_free(g_list_nth(user_data->list,i)->data);
}
/* free the (empty) list */
g_list_free(user_data->list);
/* free the user_data structure */
g_free(user_data);
airpcap_if_info_free(fake_info_if);
return keys_in_list;
}
/*
* Function used to save to the preference file the Decryption Keys.
*/
int
save_wlan_wireshark_wep_keys(GList* key_ls)
{
GList* key_list = NULL;
char* tmp_key = NULL;
guint keys_in_list,i;
keys_cb_data_t* user_data;
airpcap_if_info_t* fake_info_if = NULL;
decryption_key_t* tmp_dk;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Allocate a structure used to keep infos between the callbacks */
user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
keys_in_list = g_list_length(key_ls);
key_list = key_ls;
/* Fill the structure */
user_data->list = key_list;
user_data->current_index = 0;
user_data->number_of_keys= keys_in_list;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Run the callback on each 802.11 preference */
prefs_pref_foreach(wlan_prefs, set_wep_key, (gpointer)user_data);
/* Signal that we've changed things, and run the 802.11 dissector's
* callback */
wlan_prefs->prefs_changed = TRUE;
/* Apply changes for the specified preference */
prefs_apply(wlan_prefs);
/* FREE MEMORY */
/* free the WEP key string */
for(i=0;i<g_list_length(user_data->list);i++)
{
tmp_dk = (decryption_key_t*)g_list_nth(user_data->list,i)->data;
g_string_free(tmp_dk->key,TRUE);
if(tmp_dk->ssid != NULL) g_byte_array_free(tmp_dk->ssid,TRUE);
}
/* free the (empty) list */
g_list_free(user_data->list);
/* free the user_data structure */
g_free(user_data);
return keys_in_list;
}
/*
* Get an error message string for a CANT_GET_INTERFACE_LIST error from
* "get_airpcap_interface_list()".
*/
static gchar *
cant_get_airpcap_if_list_error_message(const char *err_str)
{
return g_strdup_printf("Can't get list of Wireless interfaces: %s", err_str);
}
/*
* Airpcap wrapper, used to store the current settings for the selected adapter
*/
BOOL
airpcap_if_store_cur_config_as_adapter_default(PAirpcapHandle ah)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapStoreCurConfigAsAdapterDefault(ah);
}
/*
* Airpcap wrapper, used to open an airpcap adapter
*/
PAirpcapHandle
airpcap_if_open(PCHAR name, PCHAR err)
{
if (!AirpcapLoaded) return NULL;
if (name == NULL) return NULL;
return g_PAirpcapOpen(name,err);
}
/*
* Airpcap wrapper, used to close an airpcap adapter
*/
VOID
airpcap_if_close(PAirpcapHandle handle)
{
if (!AirpcapLoaded) return;
g_PAirpcapClose(handle);
}
/*
* Retrieve the state of the Airpcap DLL
*/
int
airpcap_get_dll_state()
{
return AirpcapVersion;
}
/*
* Airpcap wrapper, used to turn on the led of an airpcap adapter
*/
BOOL
airpcap_if_turn_led_on(PAirpcapHandle AdapterHandle, UINT LedNumber)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapTurnLedOn(AdapterHandle,LedNumber);
}
/*
* Airpcap wrapper, used to turn off the led of an airpcap adapter
*/
BOOL
airpcap_if_turn_led_off(PAirpcapHandle AdapterHandle, UINT LedNumber)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapTurnLedOff(AdapterHandle,LedNumber);
}
/*
* Airpcap wrapper, used to get the channel of an airpcap adapter
*/
BOOL
airpcap_if_get_device_channel(PAirpcapHandle ah, PUINT ch)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetDeviceChannel(ah,ch);
}
/*
* Airpcap wrapper, used to get the supported channels of an airpcap adapter
*/
BOOL
airpcap_if_get_device_supported_channels(PAirpcapHandle ah, AirpcapChannelInfo **cInfo, PULONG nInfo)
{
if (!AirpcapLoaded) return FALSE;
if (airpcap_get_dll_state() == AIRPCAP_DLL_OLD){
*nInfo = num_legacy_channels;
*cInfo = (AirpcapChannelInfo*)&LegacyChannels;
return TRUE;
} else if (airpcap_get_dll_state() == AIRPCAP_DLL_OK){
return g_PAirpcapGetDeviceSupportedChannels(ah, cInfo, nInfo);
}
return FALSE;
}
/*
* Airpcap wrapper, used to get the supported channels of an airpcap adapter
*/
Dot11Channel*
airpcap_if_get_device_supported_channels_array(PAirpcapHandle ah, PULONG pNumSupportedChannels)
{
AirpcapChannelInfo *chanInfo;
ULONG i=0, j=0, numInfo = 0;
if (!AirpcapLoaded)
return FALSE;
if (airpcap_if_get_device_supported_channels(ah, &chanInfo, &numInfo) == FALSE)
return NULL;
numSupportedChannels = 0;
/*
* allocate a bigger array
*/
if (numInfo == 0)
return NULL;
pSupportedChannels = malloc(numInfo * (sizeof *pSupportedChannels));
for (i = 0; i < numInfo; i++)
{
ULONG supportedChannel = 0xFFFFFFFF;
/*
* search if we have it already
*/
for (j = 0; j < numSupportedChannels; j++)
{
if (pSupportedChannels[j].Frequency == chanInfo[i].Frequency)
{
supportedChannel = j;
break;
}
}
if (supportedChannel == 0xFFFFFFFF)
{
/*
* not found, create a new item
*/
pSupportedChannels[numSupportedChannels].Frequency = chanInfo[i].Frequency;
switch(chanInfo[i].ExtChannel)
{
case -1:
pSupportedChannels[numSupportedChannels].Flags = FLAG_CAN_BE_HIGH;
break;
case +1:
pSupportedChannels[numSupportedChannels].Flags = FLAG_CAN_BE_LOW;
break;
case 0:
default:
pSupportedChannels[numSupportedChannels].Flags = 0;
}
/*
* Gather channel information
*/
pSupportedChannels[numSupportedChannels].Flags |=
FREQ_IS_BG(pSupportedChannels[numSupportedChannels].Frequency) ?
FLAG_IS_BG_CHANNEL : FLAG_IS_A_CHANNEL;
pSupportedChannels[numSupportedChannels].Channel =
ieee80211_mhz_to_chan(pSupportedChannels[numSupportedChannels].Frequency);
numSupportedChannels++;
}
else
{
/*
* just update the ext channel flags
*/
switch(chanInfo[i].ExtChannel)
{
case -1:
pSupportedChannels[supportedChannel].Flags |= FLAG_CAN_BE_HIGH;
break;
case +1:
pSupportedChannels[supportedChannel].Flags |= FLAG_CAN_BE_LOW;
break;
case 0:
default:
break;
}
}
}
if (numSupportedChannels < 1)
return NULL;
/*
* Now sort the list by frequency
*/
for (i = 0 ; i < numSupportedChannels - 1; i++)
{
for (j = i + 1; j < numSupportedChannels; j++)
{
if (pSupportedChannels[i].Frequency > pSupportedChannels[j].Frequency)
{
Dot11Channel temp = pSupportedChannels[i];
pSupportedChannels[i] = pSupportedChannels[j];
pSupportedChannels[j] = temp;
}
}
}
*pNumSupportedChannels = numSupportedChannels;
return pSupportedChannels;
}
/*
* Airpcap wrapper, used to set the channel of an airpcap adapter
*/
BOOL
airpcap_if_set_device_channel(PAirpcapHandle ah, UINT ch)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetDeviceChannel(ah,ch);
}
/*
* Airpcap wrapper, used to set the frequency of an airpcap adapter
*/
BOOL
airpcap_if_set_device_channel_ex(PAirpcapHandle ah, AirpcapChannelInfo ChannelInfo)
{
if (!AirpcapLoaded) return FALSE;
if (airpcap_get_dll_state() == AIRPCAP_DLL_OLD){
guint channel = 0;
channel = ieee80211_mhz_to_chan(ChannelInfo.Frequency);
if (channel < 0){
return FALSE;
} else {
return airpcap_if_set_device_channel(ah, channel);
}
} else if (airpcap_get_dll_state() == AIRPCAP_DLL_OK){
return g_PAirpcapSetDeviceChannelEx (ah, ChannelInfo);
}
return FALSE;
}
/*
* Airpcap wrapper, used to get the frequency of an airpcap adapter
*/
BOOL
airpcap_if_get_device_channel_ex(PAirpcapHandle ah, PAirpcapChannelInfo pChannelInfo)
{
if (!AirpcapLoaded) return FALSE;
pChannelInfo->Frequency = 0;
pChannelInfo->ExtChannel = 0;
pChannelInfo->Reserved[0] = 0;
pChannelInfo->Reserved[1] = 0;
pChannelInfo->Reserved[2] = 0;
if (airpcap_get_dll_state() == AIRPCAP_DLL_OLD){
guint channel = 0;
ULONG chan_freq = 0;
if (!airpcap_if_get_device_channel(ah, &channel)) return FALSE;
chan_freq = ieee80211_chan_to_mhz(channel, TRUE);
if (chan_freq == 0) return FALSE;
pChannelInfo->Frequency = chan_freq;
return TRUE;
} else if (airpcap_get_dll_state() == AIRPCAP_DLL_OK){
return g_PAirpcapGetDeviceChannelEx (ah, pChannelInfo);
}
return FALSE;
}
/*
* Airpcap wrapper, used to get the link type of an airpcap adapter
*/
BOOL
airpcap_if_get_link_type(PAirpcapHandle ah, PAirpcapLinkType lt)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetLinkType(ah,lt);
}
/*
* Airpcap wrapper, used to set the link type of an airpcap adapter
*/
BOOL
airpcap_if_set_link_type(PAirpcapHandle ah, AirpcapLinkType lt)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetLinkType(ah,lt);
}
/*
* Airpcap wrapper, used to get the fcs presence of an airpcap adapter
*/
BOOL
airpcap_if_get_fcs_presence(PAirpcapHandle ah, PBOOL fcs)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetFcsPresence(ah,fcs);
}
/*
* Airpcap wrapper, used to set the fcs presence of an airpcap adapter
*/
BOOL
airpcap_if_set_fcs_presence(PAirpcapHandle ah, BOOL fcs)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetFcsPresence(ah,fcs);
}
/*
* Airpcap wrapper, used to get the decryption enabling of an airpcap adapter
*/
BOOL
airpcap_if_get_decryption_state(PAirpcapHandle ah, PAirpcapDecryptionState PEnable)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetDecryptionState(ah,PEnable);
}
/*
* Airpcap wrapper, used to set the decryption enabling of an airpcap adapter
*/
BOOL
airpcap_if_set_decryption_state(PAirpcapHandle ah, AirpcapDecryptionState Enable)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetDecryptionState(ah,Enable);
}
/*
* Airpcap wrapper, used to get the decryption enabling of an airpcap driver
*/
BOOL
airpcap_if_get_driver_decryption_state(PAirpcapHandle ah, PAirpcapDecryptionState PEnable)
{
if (!AirpcapLoaded || (g_PAirpcapGetDriverDecryptionState==NULL)) return FALSE;
return g_PAirpcapGetDriverDecryptionState(ah,PEnable);
}
/*
* Airpcap wrapper, used to set the decryption enabling of an airpcap driver
*/
BOOL
airpcap_if_set_driver_decryption_state(PAirpcapHandle ah, AirpcapDecryptionState Enable)
{
if (!AirpcapLoaded || (g_PAirpcapSetDriverDecryptionState==NULL)) return FALSE;
return g_PAirpcapSetDriverDecryptionState(ah,Enable);
}
/*
* Airpcap wrapper, used to get the fcs validation of an airpcap adapter
*/
BOOL
airpcap_if_get_fcs_validation(PAirpcapHandle ah, PAirpcapValidationType val)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetFcsValidation(ah,val);
}
/*
* Airpcap wrapper, used to set the fcs validation of an airpcap adapter
*/
BOOL
airpcap_if_set_fcs_validation(PAirpcapHandle ah, AirpcapValidationType val)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetFcsValidation(ah,val);
}
/*
* Airpcap wrapper, used to save the settings for the selected_if
*/
BOOL
airpcap_if_set_device_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapSetDeviceKeys(AdapterHandle,KeysCollection);
}
/*
* Airpcap wrapper, used to save the settings for the selected_if
*/
BOOL
airpcap_if_get_device_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection, PUINT PKeysCollectionSize)
{
if (!AirpcapLoaded) return FALSE;
return g_PAirpcapGetDeviceKeys(AdapterHandle,KeysCollection,PKeysCollectionSize);
}
/*
* Airpcap wrapper, used to save the driver's set of keys
*/
BOOL
airpcap_if_set_driver_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection)
{
if (!AirpcapLoaded || (g_PAirpcapSetDriverKeys==NULL)) return FALSE;
return g_PAirpcapSetDriverKeys(AdapterHandle,KeysCollection);
}
/*
* Airpcap wrapper, used to load the driver's set of keys
*/
BOOL
airpcap_if_get_driver_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection, PUINT PKeysCollectionSize)
{
if (!AirpcapLoaded || (g_PAirpcapGetDriverKeys==NULL)) return FALSE;
return g_PAirpcapGetDriverKeys(AdapterHandle,KeysCollection,PKeysCollectionSize);
}
/*
* This function will create a new airpcap_if_info_t using a name and a description
*/
airpcap_if_info_t *
airpcap_if_info_new(char *name, char *description)
{
PAirpcapHandle ad;
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
airpcap_if_info_t *if_info = NULL;
/* Probably I have to switch on the leds!!! */
ad = airpcap_if_open(name, ebuf);
if(ad)
{
if_info = g_malloc(sizeof (airpcap_if_info_t));
if_info->name = g_strdup(name);
if (description == NULL){
if_info->description = NULL;
}else{
if_info->description = g_strdup(description);
}
if_info->ip_addr = NULL;
if_info->loopback = FALSE;
airpcap_if_get_fcs_validation(ad,&(if_info->CrcValidationOn));
airpcap_if_get_fcs_presence(ad,&(if_info->IsFcsPresent));
airpcap_if_get_link_type(ad,&(if_info->linkType));
airpcap_if_get_device_channel_ex(ad,&(if_info->channelInfo));
if_info->pSupportedChannels = airpcap_if_get_device_supported_channels_array(ad, &(if_info->numSupportedChannels));
airpcap_if_turn_led_on(ad, 0);
airpcap_if_get_decryption_state(ad, &(if_info->DecryptionOn));
if_info->led = TRUE;
if_info->blinking = FALSE;
if_info->saved = TRUE; /* NO NEED TO BE SAVED */
/* get the keys, if everything is ok, close the adapter */
if(airpcap_if_load_keys(ad,if_info))
{
airpcap_if_close(ad);
}
}
return if_info;
}
/*
* This function will create a new fake drivers' interface, to load global keys...
*/
airpcap_if_info_t*
airpcap_driver_fake_if_info_new()
{
PAirpcapHandle ad;
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
airpcap_if_info_t *if_info = NULL;
airpcap_if_info_t *fake_if_info = NULL;
/* Maybe for some reason no airpcap adapter is found */
if(airpcap_if_list == NULL)
return NULL;
/*
* Retrieve the first AirPcap adapter available. If no interface is found,
* it is not possible to retrieve the driver's settings, so return NULL.
*/
if_info = g_list_nth_data(airpcap_if_list,0);
if(if_info == NULL)
return NULL;
/* Open the 'fake' adapter */
ad = airpcap_if_open(if_info->name, ebuf);
if(ad)
{
fake_if_info = g_malloc(sizeof (airpcap_if_info_t));
fake_if_info->name = g_strdup(if_info->name);
fake_if_info->description = g_strdup(if_info->description);
fake_if_info->loopback = FALSE;
fake_if_info->ip_addr = NULL;
airpcap_if_get_driver_decryption_state(ad, &(fake_if_info->DecryptionOn));
airpcap_if_get_fcs_validation(ad,&(fake_if_info->CrcValidationOn));
airpcap_if_get_fcs_presence(ad,&(fake_if_info->IsFcsPresent));
airpcap_if_get_link_type(ad,&(fake_if_info->linkType));
airpcap_if_get_device_channel_ex(ad,&(fake_if_info->channelInfo));
airpcap_if_turn_led_on(ad, 0);
fake_if_info->led = TRUE;
fake_if_info->blinking = FALSE;
fake_if_info->saved = TRUE; /* NO NEED TO BE SAVED */
/* get the keys, if everything is ok, close the adapter */
if(airpcap_if_load_driver_keys(ad,fake_if_info))
{
airpcap_if_close(ad);
}
}
return fake_if_info;
}
/*
* USED FOR DEBUG ONLY... PRINTS AN AirPcap ADAPTER STRUCTURE in a fancy way.
*/
void
airpcap_if_info_print(airpcap_if_info_t* if_info)
{
guint i;
if(if_info == NULL)
{
g_print("\nWARNING : AirPcap Interface pointer is NULL!\n");
return;
}
g_print("\n----------------- AirPcap Interface \n");
g_print(" NAME: %s\n",if_info->name);
g_print(" DESCRIPTION: %s\n",if_info->description);
g_print(" BLINKING: %s\n",if_info->blinking ? "TRUE" : "FALSE");
g_print(" channelInfo.Frequency: %u\n",if_info->channelInfo.Frequency);
g_print(" channelInfo.ExtChannel: %d\n",if_info->channelInfo.ExtChannel);
g_print(" CRCVALIDATION: %s\n",if_info->CrcValidationOn ? "ON" : "OFF");
g_print(" DECRYPTION: %s\n",if_info->DecryptionOn ? "ON" : "OFF");
g_print(" IP ADDR: %s\n",if_info->ip_addr!=NULL ? "NOT NULL" : "NULL");
g_print(" FCSPRESENT: %s\n",if_info->IsFcsPresent ? "TRUE" : "FALSE");
g_print(" KEYSCOLLECTION: %s\n",if_info->keysCollection!=NULL ? "NOT NULL" : "NULL");
g_print(" KEYSCOLLECTIONSIZE: %u\n",if_info->keysCollectionSize);
g_print(" LED: %s\n",if_info->led ? "ON" : "OFF");
g_print(" LINKTYPE: %d\n",if_info->linkType);
g_print(" LOOPBACK: %s\n",if_info->loopback ? "YES" : "NO");
g_print(" (GTK) TAG: %d\n",if_info->tag);
g_print("SUPPORTED CHANNELS POINTER: %lu\n",if_info->pSupportedChannels);
g_print(" NUM SUPPORTED CHANNELS: %lu\n",if_info->numSupportedChannels);
for(i=0; i<(if_info->numSupportedChannels); i++){
g_print("\n SUPPORTED CHANNEL #%u\n",i+1);
g_print(" CHANNEL: %u\n",if_info->pSupportedChannels[i].Channel);
g_print(" FREQUENCY: %lu\n",if_info->pSupportedChannels[i].Frequency);
g_print(" FLAGS: %lu\n",if_info->pSupportedChannels[i].Flags);
}
g_print("\n\n");
}
/*
* Function used to load the WEP keys for a selected interface
*/
BOOL
airpcap_if_load_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
{
if(!if_info) return FALSE;
if_info->keysCollectionSize = 0;
if_info->keysCollection = NULL;
if(!airpcap_if_get_device_keys(ad, NULL, &(if_info->keysCollectionSize)))
{
if(if_info->keysCollectionSize == 0)
{
if_info->keysCollection = NULL;
airpcap_if_close(ad);
return FALSE;
}
if_info->keysCollection = (PAirpcapKeysCollection)g_malloc(if_info->keysCollectionSize);
if(!if_info->keysCollection)
{
if_info->keysCollectionSize = 0;
if_info->keysCollection = NULL;
airpcap_if_close(ad);
return FALSE;
}
airpcap_if_get_device_keys(ad, if_info->keysCollection, &(if_info->keysCollectionSize));
return TRUE;
}
airpcap_if_close(ad);
return FALSE;
}
/*
* Function used to load the WEP keys for a selected interface
*/
BOOL
airpcap_if_load_driver_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
{
if_info->keysCollectionSize = 0;
if_info->keysCollection = NULL;
if(!airpcap_if_get_driver_keys(ad, NULL, &(if_info->keysCollectionSize)))
{
if(if_info->keysCollectionSize == 0)
{
if_info->keysCollection = NULL;
airpcap_if_close(ad);
return FALSE;
}
if_info->keysCollection = (PAirpcapKeysCollection)g_malloc(if_info->keysCollectionSize);
if(!if_info->keysCollection)
{
if_info->keysCollectionSize = 0;
if_info->keysCollection = NULL;
airpcap_if_close(ad);
return FALSE;
}
airpcap_if_get_driver_keys(ad, if_info->keysCollection, &(if_info->keysCollectionSize));
return TRUE;
}
airpcap_if_close(ad);
return FALSE;
}
/*
* Function used to save the WEP keys for a selected interface
*/
void
airpcap_if_save_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
{
if(!if_info || !AirpcapLoaded) return;
if(if_info->keysCollection != NULL)
g_PAirpcapSetDeviceKeys(ad,if_info->keysCollection);
}
/*
* Function used to save the WEP keys for a selected interface
*/
void
airpcap_if_save_driver_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
{
if(if_info->keysCollection != NULL)
airpcap_if_set_driver_keys(ad,if_info->keysCollection);
}
/*
* Callback used to free an instance of airpcap_if_info_t
*/
static void
free_airpcap_if_cb(gpointer data, gpointer user_data _U_)
{
airpcap_if_info_t *if_info = data;
if (if_info->name != NULL)
g_free(if_info->name);
if (if_info->description != NULL)
g_free(if_info->description);
/* XXX - FREE THE WEP KEY LIST HERE!!!*/
if(if_info->keysCollection != NULL)
{
g_free(if_info->keysCollection);
if_info->keysCollection = NULL;
}
if(if_info->ip_addr != NULL)
g_slist_free(if_info->ip_addr);
if(if_info != NULL)
g_free(if_info);
}
/*
* Function used to free the airpcap interface list
*/
void
free_airpcap_interface_list(GList *if_list)
{
g_list_foreach(if_list, free_airpcap_if_cb, NULL);
g_list_free(if_list);
if_list = NULL;
}
/*
* This function will use the airpcap.dll to find all the airpcap devices.
* Will return null if no device is found.
*/
GList*
get_airpcap_interface_list(int *err, char **err_str)
{
GList *il = NULL;
airpcap_if_info_t *if_info;
int i, n_adapts;
AirpcapDeviceDescription *devsList, *adListEntry;
char errbuf[PCAP_ERRBUF_SIZE];
if (!AirpcapLoaded)
{
*err = AIRPCAP_NOT_LOADED;
return il;
}
if (!g_PAirpcapGetDeviceList(&devsList, errbuf))
{
/* No interfaces, return il = NULL; */
*err = CANT_GET_AIRPCAP_INTERFACE_LIST;
if (err_str != NULL)
*err_str = cant_get_airpcap_if_list_error_message(errbuf);
return il;
}
/*
* Count the adapters
*/
adListEntry = devsList;
n_adapts = 0;
while(adListEntry)
{
n_adapts++;
adListEntry = adListEntry->next;
}
if(n_adapts == 0)
{
/* No interfaces, return il= NULL */
g_PAirpcapFreeDeviceList(devsList);
*err = NO_AIRPCAP_INTERFACES_FOUND;
if (err_str != NULL)
*err_str = NULL;
return il;
}
/*
* Insert the adapters in our list
*/
adListEntry = devsList;
for(i = 0; i < n_adapts; i++)
{
if_info = airpcap_if_info_new(adListEntry->Name, adListEntry->Description);
if (if_info != NULL){
il = g_list_append(il, if_info);
}
adListEntry = adListEntry->next;
}
g_PAirpcapFreeDeviceList(devsList);
*err = 0;
return il;
}
/*
* Used to retrieve the interface given the name
* (the name is used in AirpcapOpen)
*/
airpcap_if_info_t* get_airpcap_if_from_name(GList* if_list, const gchar* name)
{
unsigned int ifn;
GList* curr;
airpcap_if_info_t* if_info;
ifn = 0;
if(if_list != NULL)
{
while( ifn < g_list_length(if_list) )
{
curr = g_list_nth(if_list, ifn);
if_info = NULL;
if(curr != NULL)
if_info = curr->data;
if(if_info != NULL)
{
if ( g_ascii_strcasecmp(if_info->name,name) == 0)
{
return if_info;
}
}
ifn++;
}
}
return NULL;
}
/*
* Returns the ASCII string of a key given the key bytes
*/
gchar*
airpcap_get_key_string(AirpcapKey key)
{
unsigned int j = 0;
unsigned int l = 0;
gchar *dst,*src;
dst = NULL;
src = NULL;
if(key.KeyType == AIRPDCAP_KEY_TYPE_WEP)
{
if(key.KeyLen != 0)
{
/* Allocate the string used to store the ASCII representation of the WEP key */
dst = (gchar*)g_malloc(sizeof(gchar)*WEP_KEY_MAX_CHAR_SIZE + 1);
/* Make sure that the first char is '\0' in order to make g_strlcat() work */
dst[0]='\0';
for(j = 0; j < key.KeyLen; j++)
{
src = g_strdup_printf("%.2x\0", key.KeyData[j]);
/*
* XXX - use g_strconcat() or GStrings instead ???
*/
l = g_strlcat(dst,src,WEP_KEY_MAX_CHAR_SIZE+1);
}
g_free(src);
}
}
else if(key.KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
{
/* XXX - Add code here */
}
else if(key.KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
{
/* XXX - Add code here */
}
else
{
/* XXX - Add code here */
}
return dst;
}
/*
* Clear keys and decryption status for the specified interface
*/
void
airpcap_if_clear_decryption_settings(airpcap_if_info_t* info_if)
{
if(info_if != NULL)
{
if(info_if->keysCollection != NULL)
{
g_free(info_if->keysCollection);
info_if->keysCollection = NULL;
}
info_if->keysCollectionSize = 0;
info_if->DecryptionOn = FALSE;
info_if->saved = FALSE;
}
}
/*
* Used to retrieve the two chars string from interface
*/
gchar*
airpcap_get_if_string_number(airpcap_if_info_t* if_info)
{
gchar* number;
guint n;
int a;
a = sscanf(if_info->name,AIRPCAP_DEVICE_NUMBER_EXTRACT_STRING,&n);
/* If sscanf() returned 1, it means that has read a number, so interface is not "Any"
* Otherwise, check if it is the "Any" adapter...
*/
if(a == 0)
{
if(g_strcasecmp(if_info->name,AIRPCAP_DEVICE_ANY_EXTRACT_STRING)!=0)
number = g_strdup_printf("??");
else
number = g_strdup_printf(AIRPCAP_CHANNEL_ANY_NAME);
}
else
{
number = g_strdup_printf("%.2u\0",n);
}
return number;
}
/*
* Used to retrieve the two chars string from interface
*/
gchar*
airpcap_get_if_string_number_from_description(gchar* description)
{
gchar* number;
gchar* pointer;
number = (gchar*)g_malloc(sizeof(gchar)*3);
pointer = g_strrstr(description,"#\0");
number[0] = *(pointer+1);
number[1] = *(pointer+2);
number[2] = '\0';
return number;
}
/*
* Returns the default airpcap interface of a list, NULL if list is empty
*/
airpcap_if_info_t*
airpcap_get_default_if(GList* airpcap_if_list)
{
int ifn = 0;
GList* popdown_if_list = NULL;
GList* curr = NULL;
gchar* s;
airpcap_if_info_t* if_info = NULL;
if(prefs.capture_device != NULL)
{
s = g_strdup(get_if_name(prefs.capture_device));
if_info = get_airpcap_if_from_name(airpcap_if_list,g_strdup(get_if_name(prefs.capture_device)));
g_free(s);
}
return if_info;
}
/*
* Load the configuration for the specified interface
*/
void
airpcap_load_selected_if_configuration(airpcap_if_info_t* if_info)
{
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
PAirpcapHandle ad;
if(if_info != NULL)
{
ad = airpcap_if_open(if_info->name, ebuf);
if(ad)
{
/* Stop blinking (if it was blinkig!)*/
if(if_info->blinking)
{
/* Turn on the light (if it was off) */
if(!(if_info->led)) airpcap_if_turn_led_on(ad, 0);
}
/* Apply settings... */
airpcap_if_get_device_channel_ex(ad,&(if_info->channelInfo));
airpcap_if_get_fcs_validation(ad,&(if_info->CrcValidationOn));
airpcap_if_get_fcs_presence(ad,&(if_info->IsFcsPresent));
airpcap_if_get_link_type(ad,&(if_info->linkType));
airpcap_if_get_decryption_state(ad, &(if_info->DecryptionOn));
/* get the keys, if everything is ok, close the adapter */
if(airpcap_if_load_keys(ad,if_info))
airpcap_if_close(ad);
if_info->saved = TRUE;
}
else
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",if_info->description);
}
}
}
/*
* Save the configuration for the specified interface
*/
void
airpcap_save_selected_if_configuration(airpcap_if_info_t* if_info)
{
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
PAirpcapHandle ad;
if(if_info != NULL)
{
ad = airpcap_if_open(if_info->name, ebuf);
if(ad)
{
/* Stop blinking (if it was blinkig!)*/
if(if_info->blinking)
{
/* Turn on the light (if it was off) */
if(!(if_info->led)) airpcap_if_turn_led_on(ad, 0);
}
/* Apply settings... */
airpcap_if_set_device_channel_ex(ad,if_info->channelInfo);
airpcap_if_set_fcs_validation(ad,if_info->CrcValidationOn);
airpcap_if_set_fcs_presence(ad,if_info->IsFcsPresent);
airpcap_if_set_link_type(ad,if_info->linkType);
airpcap_if_set_decryption_state(ad, if_info->DecryptionOn);
airpcap_if_save_keys(ad,if_info);
/* ... and save them */
if(!airpcap_if_store_cur_config_as_adapter_default(ad))
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Cannot save Wireless configuration!!!\nRemember that in order to store the configuration in the registry you have to:\n\n- Close all the airpcap-based applications.\n- Be sure to have administrative privileges.");
if_info->saved = FALSE;
airpcap_if_close(ad);
return;
}
if_info->saved = TRUE;
airpcap_if_close(ad);
}
else
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",if_info->description);
}
}
}
/*
* Save the configuration for the specified interface
*/
void
airpcap_save_driver_if_configuration(airpcap_if_info_t* fake_if_info)
{
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
PAirpcapHandle ad;
if(fake_if_info != NULL)
{
ad = airpcap_if_open(fake_if_info->name, ebuf);
if(ad)
{
/* Apply decryption settings... */
airpcap_if_set_driver_decryption_state(ad, fake_if_info->DecryptionOn);
airpcap_if_save_driver_keys(ad,fake_if_info);
airpcap_if_close(ad);
}
else
{
simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",fake_if_info->description);
}
}
return;
}
/*
* DECRYPTION KEYS FUNCTIONS
*/
/*
* This function is used for DEBUG POURPOSES ONLY!!!
*/
void
print_key_list(GList* key_list)
{
gint n,i;
decryption_key_t* tmp;
if(key_list == NULL)
{
g_print("\n\n******* KEY LIST NULL *******\n\n");
return;
}
n = g_list_length(key_list);
g_print("\n\n********* KEY LIST **********\n\n");
g_print("NUMBER OF KEYS IN LIST : %d\n\n",n);
for(i =0; i < n; i++)
{
g_print("[%d] :\n",i+1);
tmp = (decryption_key_t*)(g_list_nth_data(key_list,i));
g_print("KEY : %s\n",tmp->key->str);
g_print("BITS: %d\n",tmp->bits);
if(tmp->type == AIRPDCAP_KEY_TYPE_WEP)
g_print("TYPE: %s\n",AIRPCAP_WEP_KEY_STRING);
else if(tmp->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
g_print("TYPE: %s\n",AIRPCAP_WPA_PWD_KEY_STRING);
else if(tmp->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
g_print("TYPE: %s\n",AIRPCAP_WPA_BIN_KEY_STRING);
else
g_print("TYPE: %s\n","???");
g_print("SSID: %s\n",(tmp->ssid != NULL) ?
format_text((guchar *)tmp->ssid->data, tmp->ssid->len) : "---");
g_print("\n");
}
g_print("\n*****************************\n\n");
}
/*
* Retrieves a GList of decryption_key_t structures containing infos about the
* keys for the given adapter... returns NULL if no keys are found.
*/
GList*
get_airpcap_device_keys(airpcap_if_info_t* info_if)
{
/* tmp vars */
char* tmp_key = NULL;
guint i,keys_in_list = 0;
/* real vars*/
decryption_key_t *new_key = NULL;
GList *key_list = NULL;
/* Number of keys in key list */
if(info_if->keysCollectionSize != 0)
keys_in_list = (guint)(info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
else
keys_in_list = 0;
for(i=0; i<keys_in_list; i++)
{
/* Different things to do depending on the key type */
if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
{
/* allocate memory for the new key item */
new_key = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
/* fill the fields */
/* KEY */
tmp_key = airpcap_get_key_string(info_if->keysCollection->Keys[i]);
new_key->key = g_string_new(tmp_key);
g_free(tmp_key);
/* BITS */
new_key->bits = new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an exadecimal number) */
/* SSID not used in WEP keys */
new_key->ssid = NULL;
/* TYPE (WEP in this case) */
new_key->type = info_if->keysCollection->Keys[i].KeyType;
/* Append the new element in the list */
key_list = g_list_append(key_list,(gpointer)new_key);
}
else if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
{
/* XXX - Not supported yet */
}
else if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
{
/* XXX - Not supported yet */
}
}
return key_list;
}
/*
* Retrieves a GList of decryption_key_t structures containing infos about the
* keys for the global AirPcap driver... returns NULL if no keys are found.
*/
GList*
get_airpcap_driver_keys()
{
/* tmp vars */
char* tmp_key = NULL;
guint i,keys_in_list = 0;
/* real vars*/
decryption_key_t *new_key = NULL;
GList *key_list = NULL;
/*
* To read the drivers general settings we need to create and use one airpcap adapter...
* The only way to do that is to instantiate a fake adapter, and then close it and delete it.
*/
airpcap_if_info_t* fake_info_if = NULL;
/* Create the fake_info_if from the first adapter of the list */
fake_info_if = airpcap_driver_fake_if_info_new();
if(fake_info_if == NULL)
return NULL;
/* Number of keys in key list */
if(fake_info_if->keysCollectionSize != 0)
keys_in_list = (guint)(fake_info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
else
keys_in_list = 0;
for(i=0; i<keys_in_list; i++)
{
/* Different things to do depending on the key type */
if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
{
/* allocate memory for the new key item */
new_key = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
/* fill the fields */
/* KEY */
tmp_key = airpcap_get_key_string(fake_info_if->keysCollection->Keys[i]);
new_key->key = g_string_new(tmp_key);
if(tmp_key != NULL) g_free(tmp_key);
/* BITS */
new_key->bits = new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an exadecimal number) */
/* SSID not used in WEP keys */
new_key->ssid = NULL;
/* TYPE (WEP in this case) */
new_key->type = fake_info_if->keysCollection->Keys[i].KeyType;
/* Append the new element in the list */
key_list = g_list_append(key_list,(gpointer)new_key);
}
else if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
{
/* XXX - Not supported yet */
}
else if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
{
/* XXX - Not supported yet */
}
}
airpcap_if_info_free(fake_info_if);
return key_list;
}
/*
* Returns the list of the decryption keys specified for wireshark, NULL if
* no key is found
*/
GList*
get_wireshark_keys()
{
keys_cb_data_t* wep_user_data = NULL;
gchar *tmp = NULL;
GList* final_list = NULL;
GList* wep_final_list = NULL;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Allocate a structure used to keep infos between the callbacks */
wep_user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
/* Fill the structure */
wep_user_data->list = NULL;
wep_user_data->current_index = 0;
wep_user_data->number_of_keys= 0; /* Still unknown */
/* Run the callback on each 802.11 preference */
/* XXX - Right now, only WEP keys will be loaded */
prefs_pref_foreach(wlan_prefs, get_wep_key, (gpointer)wep_user_data);
/* Copy the list field in the user data structure pointer into the final_list */
if(wep_user_data != NULL) wep_final_list = wep_user_data->list;
/* XXX - Merge the three lists!!!!! */
final_list = wep_final_list;
/* free the wep_user_data structure */
g_free(wep_user_data);
return final_list;
}
/*
* Merges two lists of keys and return a newly created GList. If a key is
* found multiple times, it will just appear once!
* list1 and list 2 pointer will have to be freed manually if needed!!!
* If the total number of keys exceeeds the maximum number allowed,
* exceeding keys will be discarded...
*/
GList*
merge_key_list(GList* list1, GList* list2)
{
guint n1=0,n2=0;
guint i;
decryption_key_t *dk1=NULL,
*dk2=NULL,
*new_dk=NULL;
GList* merged_list = NULL;
if( (list1 == NULL) && (list2 == NULL) )
return NULL;
if(list1 == NULL)
{
n1 = 0;
n2 = g_list_length(list2);
for(i=0;i<n2;i++)
{
new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
dk2 = (decryption_key_t *)g_list_nth_data(list2,i);
new_dk->bits = dk2->bits;
new_dk->type = dk2->type;
new_dk->key = g_string_new(dk2->key->str);
new_dk->ssid = byte_array_dup(dk2->ssid);
/* Check the total length of the merged list */
if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
merged_list = g_list_append(merged_list,(gpointer)new_dk);
}
}
else if(list2 == NULL)
{
n1 = g_list_length(list1);
n2 = 0;
for(i=0;i<n1;i++)
{
new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
dk1 = (decryption_key_t*)g_list_nth_data(list1,i);
new_dk->bits = dk1->bits;
new_dk->type = dk1->type;
new_dk->key = g_string_new(dk1->key->str);
new_dk->ssid = byte_array_dup(dk1->ssid);
/* Check the total length of the merged list */
if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
merged_list = g_list_append(merged_list,(gpointer)new_dk);
}
}
else
{
n1 = g_list_length(list1);
n2 = g_list_length(list2);
/* Copy the whole list1 into merged_list */
for(i=0;i<n1;i++)
{
new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
dk1 = (decryption_key_t *)g_list_nth_data(list1,i);
new_dk->bits = dk1->bits;
new_dk->type = dk1->type;
new_dk->key = g_string_new(dk1->key->str);
new_dk->ssid = byte_array_dup(dk1->ssid);
/* Check the total length of the merged list */
if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
merged_list = g_list_append(merged_list,(gpointer)new_dk);
}
/* Look for keys that are present in list2 but aren't in list1 yet...
* Add them to merged_list
*/
for(i=0;i<n2;i++)
{
dk2 = (decryption_key_t *)g_list_nth_data(list2,i);
if(!key_is_in_list(dk2,merged_list))
{
new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
new_dk->bits = dk2->bits;
new_dk->type = dk2->type;
new_dk->key = g_string_new(dk2->key->str);
new_dk->ssid = byte_array_dup(dk2->ssid);
/* Check the total length of the merged list */
if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
merged_list = g_list_append(merged_list,(gpointer)new_dk);
}
}
}
return merged_list;
}
/*
* Use this function to free a key list.
*/
void
free_key_list(GList *list)
{
guint i,n;
decryption_key_t *curr_key;
if(list == NULL)
return;
n = g_list_length(list);
for(i = 0; i < n; i++)
{
curr_key = (decryption_key_t*)g_list_nth_data(list,i);
/* Free all the strings */
if(curr_key->key != NULL)
g_string_free(curr_key->key, TRUE);
if(curr_key->ssid != NULL)
g_byte_array_free(curr_key->ssid, TRUE);
/* free the decryption_key_t structure*/
g_free(curr_key);
curr_key = NULL;
}
/* Free the list */
g_list_free(list);
return;
}
/*
* If the given key is contained in the list, returns TRUE.
* Returns FALSE otherwise.
*/
gboolean
key_is_in_list(decryption_key_t *dk,GList *list)
{
guint i,n;
decryption_key_t* curr_key = NULL;
gboolean found = FALSE;
if( (list == NULL) || (dk == NULL) )
return FALSE;
n = g_list_length(list);
if(n < 1)
return FALSE;
for(i = 0; i < n; i++)
{
curr_key = (decryption_key_t*)g_list_nth_data(list,i);
if(keys_are_equals(dk,curr_key))
found = TRUE;
}
return found;
}
/*
* Returns TRUE if keys are equals, FALSE otherwise
*/
gboolean
keys_are_equals(decryption_key_t *k1,decryption_key_t *k2)
{
if((k1==NULL) || (k2==NULL))
return FALSE;
/* XXX - Remove this check when we will have the WPA/WPA2 decryption in the Driver! */
/** if( (k1->type == AIRPDCAP_KEY_TYPE_WPA_PWD) || (k2->type == AIRPDCAP_KEY_TYPE_WPA_PWD) || (k1->type == AIRPDCAP_KEY_TYPE_WPA_PMK) || (k2->type == AIRPDCAP_KEY_TYPE_WPA_PMK) ) **/
/** return TRUE; **/
if( g_string_equal(k1->key,k2->key) &&
(k1->bits == k2->bits) && /* If the previous is TRUE, this must be TRUE as well */
k1->type == k2->type)
{
/* Check the ssid... if the key type is WEP, the two fields should be NULL */
if((k1->ssid == NULL) && (k2->ssid == NULL))
return TRUE;
/* If they are not null, they must share the same ssid */
return byte_array_equal(k1->ssid,k2->ssid);
}
/* Some field is not equal ... */
return FALSE;
}
/*
* Tests if two collection of keys are equal or not, to be considered equals, they have to
* contain the same keys in the SAME ORDER! (If both lists are NULL, which means empty will
* return TRUE)
*/
gboolean
key_lists_are_equal(GList* list1, GList* list2)
{
guint n1=0,n2=0;
/* XXX - Remove */
guint wep_n1=0,wep_n2=0;
GList *wep_list1=NULL;
GList *wep_list2=NULL;
/* XXX - END*/
guint i/*,j*/;
decryption_key_t *dk1=NULL,*dk2=NULL;
n1 = g_list_length(list1);
n2 = g_list_length(list2);
/*
* XXX - START : Retrieve the aublists of WEP keys!!! This is needed only 'till Driver WPA decryption
* is not implemented.
*/
for(i=0;i<n1;i++)
{
dk1=(decryption_key_t*)g_list_nth_data(list1,i);
if(dk1->type == AIRPDCAP_KEY_TYPE_WEP)
{
wep_list1 = g_list_append(wep_list1,(gpointer)dk1);
wep_n1++;
}
}
for(i=0;i<n2;i++)
{
dk2=(decryption_key_t*)g_list_nth_data(list2,i);
if(dk2->type == AIRPDCAP_KEY_TYPE_WEP)
{
wep_list2 = g_list_append(wep_list2,(gpointer)dk2);
wep_n2++;
}
}
/*
* XXX - END : Remove from START to END when the WPA/WPA2 decryption will be implemented in
* the Driver
*/
/*
* Commented, because in the new AirPcap version all the keys will be saved
* into the driver, and all the keys for every specific adapter will be
* removed. This means that this check will always fail... and the user will
* always be asked what to do... and it doesn't make much sense.
*/
/* if(n1 != n2) return FALSE; */
if(wep_n1 != wep_n2) return FALSE;
n1 = wep_n1;
n2 = wep_n2;
/*for(i=0;i<n1;i++)
{
dk1=(decryption_key_t*)g_list_nth_data(list1,i);
dk2=(decryption_key_t*)g_list_nth_data(list2,i);
if(!g_string_equal(dk1->key,dk2->key)) return FALSE;
}*/
for(i=0;i<n2;i++)
{
dk2=(decryption_key_t*)g_list_nth_data(wep_list2,i);
if(!key_is_in_list(dk2,wep_list1)) return FALSE;
}
return TRUE;
}
static guint
test_if_on(pref_t *pref, gpointer ud _U_)
{
gboolean *is_on;
gboolean number;
/* Retrieve user data info */
is_on = (gboolean*)ud;
if (g_strncasecmp(pref->name, "enable_decryption", 17) == 0 && pref->type == PREF_BOOL)
{
number = *pref->varp.boolp;
if(number) *is_on = TRUE;
else *is_on = FALSE;
return 1;
}
return 0;
}
/*
* Returns TRUE if the Wireshark decryption is active, false otherwise
*/
gboolean
wireshark_decryption_on()
{
gboolean is_on;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Run the callback on each 802.11 preference */
prefs_pref_foreach(wlan_prefs, test_if_on, (gpointer)&is_on);
return is_on;
}
/*
* Returns TRUE if the AirPcap decryption for the current adapter is active, false otherwise
*/
gboolean
airpcap_decryption_on()
{
gboolean is_on = FALSE;
airpcap_if_info_t* fake_if_info = NULL;
fake_if_info = airpcap_driver_fake_if_info_new();
if(fake_if_info != NULL)
{
if(fake_if_info->DecryptionOn == AIRPCAP_DECRYPTION_ON)
is_on = TRUE;
else if(fake_if_info->DecryptionOn == AIRPCAP_DECRYPTION_OFF)
is_on = FALSE;
}
airpcap_if_info_free(fake_if_info);
return is_on;
}
/*
* Free an instance of airpcap_if_info_t
*/
void
airpcap_if_info_free(airpcap_if_info_t *if_info)
{
if(if_info != NULL)
{
if (if_info->name != NULL)
g_free(if_info->name);
if (if_info->description != NULL)
g_free(if_info->description);
if(if_info->keysCollection != NULL)
{
g_free(if_info->keysCollection);
if_info->keysCollection = NULL;
}
if(if_info->ip_addr != NULL)
{
g_slist_free(if_info->ip_addr);
if_info->ip_addr = NULL;
}
if(if_info != NULL)
{
g_free(if_info);
if_info = NULL;
}
}
}
static guint
set_on_off(pref_t *pref, gpointer ud _U_)
{
gboolean *is_on;
gboolean number;
/* Retrieve user data info */
is_on = (gboolean*)ud;
if (g_strncasecmp(pref->name, "enable_decryption", 17) == 0 && pref->type == PREF_BOOL)
{
number = *pref->varp.boolp;
g_free((void *)*pref->varp.boolp);
if(*is_on)
*pref->varp.boolp = TRUE;
else
*pref->varp.boolp = FALSE;
return 1;
}
return 0;
}
/*
* Enables decryption for Wireshark if on_off is TRUE, disables it otherwise.
*/
void
set_wireshark_decryption(gboolean on_off)
{
gboolean is_on;
is_on = on_off;
/* Retrieve the wlan preferences */
wlan_prefs = prefs_find_module("wlan");
/* Run the callback on each 802.11 preference */
prefs_pref_foreach(wlan_prefs, set_on_off, (gpointer)&is_on);
/*
* Signal that we've changed things, and run the 802.11 dissector's
* callback
*/
wlan_prefs->prefs_changed = TRUE;
prefs_apply(wlan_prefs);
}
/*
* Enables decryption for all the adapters if on_off is TRUE, disables it otherwise.
*/
gboolean
set_airpcap_decryption(gboolean on_off)
{
/* We need to directly access the .dll functions here... */
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
PAirpcapHandle ad,ad_driver;
gboolean success = TRUE;
gint n = 0;
gint i = 0;
airpcap_if_info_t* curr_if = NULL;
airpcap_if_info_t* fake_if_info = NULL;
fake_if_info = airpcap_driver_fake_if_info_new();
if(fake_if_info == NULL)
/* We apparently don't have any adapters installed.
* This isn't a failure, so return TRUE
*/
return TRUE;
/* Set the driver decryption */
ad_driver = airpcap_if_open(fake_if_info->name, ebuf);
if(ad_driver)
{
if(on_off)
airpcap_if_set_driver_decryption_state(ad_driver,AIRPCAP_DECRYPTION_ON);
else
airpcap_if_set_driver_decryption_state(ad_driver,AIRPCAP_DECRYPTION_OFF);
airpcap_if_close(ad_driver);
}
airpcap_if_info_free(fake_if_info);
n = g_list_length(airpcap_if_list);
/* Set to FALSE the decryption for all the adapters */
/* Apply this change to all the adapters !!! */
for(i = 0; i < n; i++)
{
curr_if = (airpcap_if_info_t*)g_list_nth_data(airpcap_if_list,i);
if( curr_if != NULL )
{
ad = airpcap_if_open(curr_if->name, ebuf);
if(ad)
{
curr_if->DecryptionOn = (gboolean)AIRPCAP_DECRYPTION_OFF;
airpcap_if_set_decryption_state(ad,curr_if->DecryptionOn);
/* Save configuration for the curr_if */
if(!airpcap_if_store_cur_config_as_adapter_default(ad))
{
success = FALSE;
}
airpcap_if_close(ad);
}
}
}
return success;
}
/* DYNAMIC LIBRARY LOADER */
/*
* Used to dynamically load the airpcap library in order link it only when
* it's present on the system
*/
int load_airpcap(void)
{
BOOL base_functions = TRUE;
BOOL eleven_n_functions = TRUE;
if((AirpcapLib = LoadLibrary(TEXT("airpcap.dll"))) == NULL)
{
/* Report the error but go on */
AirpcapVersion = AIRPCAP_DLL_NOT_FOUND;
return AirpcapVersion;
}
else
{
if((g_PAirpcapGetLastError = (AirpcapGetLastErrorHandler) GetProcAddress(AirpcapLib, "AirpcapGetLastError")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDeviceList = (AirpcapGetDeviceListHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceList")) == NULL) base_functions = FALSE;
if((g_PAirpcapFreeDeviceList = (AirpcapFreeDeviceListHandler) GetProcAddress(AirpcapLib, "AirpcapFreeDeviceList")) == NULL) base_functions = FALSE;
if((g_PAirpcapOpen = (AirpcapOpenHandler) GetProcAddress(AirpcapLib, "AirpcapOpen")) == NULL) base_functions = FALSE;
if((g_PAirpcapClose = (AirpcapCloseHandler) GetProcAddress(AirpcapLib, "AirpcapClose")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetLinkType = (AirpcapGetLinkTypeHandler) GetProcAddress(AirpcapLib, "AirpcapGetLinkType")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetLinkType = (AirpcapSetLinkTypeHandler) GetProcAddress(AirpcapLib, "AirpcapSetLinkType")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetKernelBuffer = (AirpcapSetKernelBufferHandler) GetProcAddress(AirpcapLib, "AirpcapSetKernelBuffer")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetFilter = (AirpcapSetFilterHandler) GetProcAddress(AirpcapLib, "AirpcapSetFilter")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetMacAddress = (AirpcapGetMacAddressHandler) GetProcAddress(AirpcapLib, "AirpcapGetMacAddress")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetMinToCopy = (AirpcapSetMinToCopyHandler) GetProcAddress(AirpcapLib, "AirpcapSetMinToCopy")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetReadEvent = (AirpcapGetReadEventHandler) GetProcAddress(AirpcapLib, "AirpcapGetReadEvent")) == NULL) base_functions = FALSE;
if((g_PAirpcapRead = (AirpcapReadHandler) GetProcAddress(AirpcapLib, "AirpcapRead")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetStats = (AirpcapGetStatsHandler) GetProcAddress(AirpcapLib, "AirpcapGetStats")) == NULL) base_functions = FALSE;
if((g_PAirpcapTurnLedOn = (AirpcapTurnLedOnHandler) GetProcAddress(AirpcapLib, "AirpcapTurnLedOn")) == NULL) base_functions = FALSE;
if((g_PAirpcapTurnLedOff = (AirpcapTurnLedOffHandler) GetProcAddress(AirpcapLib, "AirpcapTurnLedOff")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDeviceChannel = (AirpcapGetDeviceChannelHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceChannel")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetDeviceChannel = (AirpcapSetDeviceChannelHandler) GetProcAddress(AirpcapLib, "AirpcapSetDeviceChannel")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetFcsPresence = (AirpcapGetFcsPresenceHandler) GetProcAddress(AirpcapLib, "AirpcapGetFcsPresence")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetFcsPresence = (AirpcapSetFcsPresenceHandler) GetProcAddress(AirpcapLib, "AirpcapSetFcsPresence")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetFcsValidation = (AirpcapGetFcsValidationHandler) GetProcAddress(AirpcapLib, "AirpcapGetFcsValidation")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetFcsValidation = (AirpcapSetFcsValidationHandler) GetProcAddress(AirpcapLib, "AirpcapSetFcsValidation")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDeviceKeys = (AirpcapGetDeviceKeysHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceKeys")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetDeviceKeys = (AirpcapSetDeviceKeysHandler) GetProcAddress(AirpcapLib, "AirpcapSetDeviceKeys")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDecryptionState = (AirpcapGetDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapGetDecryptionState")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetDecryptionState = (AirpcapSetDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapSetDecryptionState")) == NULL) base_functions = FALSE;
if((g_PAirpcapStoreCurConfigAsAdapterDefault = (AirpcapStoreCurConfigAsAdapterDefaultHandler) GetProcAddress(AirpcapLib, "AirpcapStoreCurConfigAsAdapterDefault")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetVersion = (AirpcapGetVersionHandler) GetProcAddress(AirpcapLib, "AirpcapGetVersion")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDriverDecryptionState = (AirpcapGetDriverDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapGetDriverDecryptionState")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetDriverDecryptionState = (AirpcapSetDriverDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapSetDriverDecryptionState")) == NULL) base_functions = FALSE;
if((g_PAirpcapGetDriverKeys = (AirpcapGetDriverKeysHandler) GetProcAddress(AirpcapLib, "AirpcapGetDriverKeys")) == NULL) base_functions = FALSE;
if((g_PAirpcapSetDriverKeys = (AirpcapSetDriverKeysHandler) GetProcAddress(AirpcapLib, "AirpcapSetDriverKeys")) == NULL) base_functions = FALSE;
/* TEST IF AIRPCAP SUPPORTS 11N */
if((g_PAirpcapSetDeviceChannelEx = (AirpcapSetDeviceChannelExHandler) GetProcAddress(AirpcapLib, "AirpcapSetDeviceChannelEx")) == NULL) eleven_n_functions = FALSE;
if((g_PAirpcapGetDeviceChannelEx = (AirpcapGetDeviceChannelExHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceChannelEx")) == NULL) eleven_n_functions = FALSE;
if((g_PAirpcapGetDeviceSupportedChannels = (AirpcapGetDeviceSupportedChannelsHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceSupportedChannels")) == NULL) eleven_n_functions = FALSE;
if(base_functions && eleven_n_functions){
AirpcapLoaded = TRUE;
AirpcapVersion = AIRPCAP_DLL_OK;
}else if(base_functions){
AirpcapLoaded = TRUE;
AirpcapVersion = AIRPCAP_DLL_OLD;
return AIRPCAP_DLL_OK;
}else{
AirpcapLoaded = FALSE;
AirpcapVersion = AIRPCAP_DLL_ERROR;
}
}
return AirpcapVersion;
}
/*
* Append the version of AirPcap with which we were compiled to a GString.
*/
void
get_compiled_airpcap_version(GString *str)
{
g_string_append(str, "with AirPcap");
}
/*
* Append the version of AirPcap with which we we're running to a GString.
*/
void
get_runtime_airpcap_version(GString *str)
{
guint vmaj, vmin, vrev, build;
/* See if the DLL has been loaded successfully. Bail if it hasn't */
if (AirpcapLoaded == FALSE) {
g_string_append(str, "without AirPcap");
return;
}
g_PAirpcapGetVersion(&vmaj, &vmin, &vrev, &build);
g_string_sprintfa(str, "with AirPcap %d.%d.%d build %d", vmaj, vmin,
vrev, build);
}
#endif /* HAVE_AIRPCAP */
#endif /* _WIN32 */
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