nexmon – Rev 1
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/* airpcap_gui_utils.c
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wsutil/filesystem.h>
#include <wsutil/frequency-utils.h>
#include <epan/prefs.h>
#include <epan/prefs-int.h>
#include <epan/uat-int.h>
#include <epan/strutil.h>
#include <epan/crypt/airpdcap_ws.h>
#include <epan/crypt/wep-wpadefs.h>
#include <epan/packet.h>
#include <epan/dissectors/packet-ieee80211.h>
#include "ui/capture_ui_utils.h"
#include "ui/simple_dialog.h"
#include "ui/gtk/main.h"
#include "ui/gtk/dlg_utils.h"
#include "ui/gtk/gui_utils.h"
#include "ui/gtk/dfilter_expr_dlg.h"
#include "ui/gtk/help_dlg.h"
#include "ui/gtk/keys.h"
#include "ui/gtk/old-gtk-compat.h"
#include <caputils/airpcap.h>
#include <caputils/airpcap_loader.h>
#include "airpcap_gui_utils.h"
/* Controls the releay of settings back to the adapter. */
gboolean change_airpcap_settings = FALSE;
/* WLAN preferences pointer */
module_t *wlan_prefs = NULL;
/*
* Set up the airpcap toolbar for the new capture interface
*/
void
airpcap_set_toolbar_start_capture(airpcap_if_info_t* if_info)
{
GtkWidget *airpcap_toolbar_label;
GtkWidget *toolbar_channel_cb;
GtkWidget *airpcap_toolbar_channel_lb;
GtkWidget *airpcap_toolbar_channel_offset;
GtkWidget *airpcap_toolbar_channel_offset_lb;
GtkWidget *airpcap_toolbar_button;
GtkWidget *airpcap_toolbar_fcs;
GtkWidget *airpcap_toolbar_fcs_lb;
GtkWidget *airpcap_toolbar_decryption;
GtkWidget *airpcap_toolbar_decryption_lb;
GtkWidget *airpcap_toolbar_keys_button;
gchar *if_label_text;
airpcap_toolbar_label = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_INTERFACE_KEY);
toolbar_channel_cb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_KEY);
airpcap_toolbar_channel_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_LABEL_KEY);
airpcap_toolbar_channel_offset = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_KEY);
airpcap_toolbar_channel_offset_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_LABEL_KEY);
airpcap_toolbar_fcs = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_FCS_FILTER_KEY);
airpcap_toolbar_fcs_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_FCS_FILTER_LABEL_KEY);
airpcap_toolbar_button = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_ADVANCED_KEY);
airpcap_toolbar_decryption = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_DECRYPTION_KEY);
airpcap_toolbar_decryption_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_DECRYPTION_LABEL_KEY);
airpcap_toolbar_keys_button = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_KEY_MANAGEMENT_KEY);
/* The current interface is an airpcap interface */
if (if_info != NULL)
{
gtk_widget_set_sensitive(wireless_tb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_label,TRUE);
gtk_widget_set_sensitive(toolbar_channel_cb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_button,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_button,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_keys_button,FALSE);
/*decryption check box*/
g_signal_handlers_block_by_func (airpcap_toolbar_decryption,airpcap_toolbar_encryption_cb, wireless_tb);
if (if_info->DecryptionOn == AIRPCAP_DECRYPTION_ON)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(airpcap_toolbar_decryption),TRUE);
else
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(airpcap_toolbar_decryption),FALSE);
g_signal_handlers_unblock_by_func (airpcap_toolbar_decryption,airpcap_toolbar_encryption_cb, wireless_tb);
if_label_text = g_strdup_printf("Current Wireless Interface: #%s", airpcap_get_if_string_number(if_info));
gtk_label_set_text(GTK_LABEL(airpcap_toolbar_label),if_label_text);
g_free(if_label_text);
change_airpcap_settings = FALSE;
if (if_info->pSupportedChannels != NULL && if_info->numSupportedChannels > 0) {
guint i = 0;
for (; i<if_info->numSupportedChannels; i++) {
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(toolbar_channel_cb), ieee80211_mhz_to_str(if_info->pSupportedChannels[i].Frequency));
}
}
airpcap_update_channel_combo(GTK_WIDGET(toolbar_channel_cb),if_info);
airpcap_update_channel_offset_combo(if_info, if_info->channelInfo.Frequency, airpcap_toolbar_channel_offset, TRUE);
change_airpcap_settings = TRUE;
}
else /* Current interface is NOT an AirPcap one... */
{
gtk_widget_set_sensitive(wireless_tb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_label,FALSE);
gtk_widget_set_sensitive(toolbar_channel_cb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_button,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_button,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_keys_button,FALSE);
}
}
/*
* Set up the airpcap toolbar for the new capture interface
*/
void
airpcap_set_toolbar_stop_capture(airpcap_if_info_t* if_info)
{
GtkWidget *airpcap_toolbar_crc_filter_combo;
GtkWidget *airpcap_toolbar_label;
GtkWidget *toolbar_channel_cb;
GtkWidget *airpcap_toolbar_channel_lb;
GtkWidget *airpcap_toolbar_channel_offset;
GtkWidget *airpcap_toolbar_channel_offset_lb;
GtkWidget *airpcap_toolbar_button;
GtkWidget *airpcap_toolbar_fcs;
GtkWidget *airpcap_toolbar_fcs_lb;
GtkWidget *airpcap_toolbar_decryption;
GtkWidget *airpcap_toolbar_decryption_lb;
GtkWidget *airpcap_toolbar_keys_button;
gchar *if_label_text;
airpcap_toolbar_crc_filter_combo = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_FCS_FILTER_KEY);
airpcap_toolbar_label = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_INTERFACE_KEY);
toolbar_channel_cb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_KEY);
airpcap_toolbar_channel_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_LABEL_KEY);
airpcap_toolbar_channel_offset = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_KEY);
airpcap_toolbar_channel_offset_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_LABEL_KEY);
airpcap_toolbar_fcs = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_FCS_FILTER_KEY);
airpcap_toolbar_fcs_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_FCS_FILTER_LABEL_KEY);
airpcap_toolbar_button = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_ADVANCED_KEY);
airpcap_toolbar_decryption = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_DECRYPTION_KEY);
airpcap_toolbar_decryption_lb = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_DECRYPTION_LABEL_KEY);
airpcap_toolbar_keys_button = (GtkWidget *)g_object_get_data(G_OBJECT(wireless_tb),AIRPCAP_TOOLBAR_KEY_MANAGEMENT_KEY);
/* The current interface is an airpcap interface */
if (if_info != NULL)
{
gtk_widget_set_sensitive(wireless_tb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_label,TRUE);
gtk_widget_set_sensitive(toolbar_channel_cb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_button,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_crc_filter_combo,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_keys_button,TRUE);
airpcap_validation_type_combo_set_by_type(airpcap_toolbar_crc_filter_combo, if_info->CrcValidationOn);
/*decription check box*/
g_signal_handlers_block_by_func (airpcap_toolbar_decryption,airpcap_toolbar_encryption_cb, wireless_tb);
if (if_info->DecryptionOn == AIRPCAP_DECRYPTION_ON)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(airpcap_toolbar_decryption),TRUE);
else
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(airpcap_toolbar_decryption),FALSE);
g_signal_handlers_unblock_by_func (airpcap_toolbar_decryption,airpcap_toolbar_encryption_cb, wireless_tb);
if_label_text = g_strdup_printf("Current Wireless Interface: #%s", airpcap_get_if_string_number(if_info));
gtk_label_set_text(GTK_LABEL(airpcap_toolbar_label),if_label_text);
g_free(if_label_text);
change_airpcap_settings = FALSE;
if (if_info->pSupportedChannels != NULL && if_info->numSupportedChannels > 0) {
guint i = 0;
for (; i<if_info->numSupportedChannels; i++) {
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(toolbar_channel_cb), ieee80211_mhz_to_str(if_info->pSupportedChannels[i].Frequency));
}
}
airpcap_update_channel_combo(GTK_WIDGET(toolbar_channel_cb),if_info);
airpcap_update_channel_offset_combo(if_info, if_info->channelInfo.Frequency, airpcap_toolbar_channel_offset, TRUE);
change_airpcap_settings = TRUE;
}
else
{
gtk_widget_set_sensitive(wireless_tb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_label,FALSE);
gtk_widget_set_sensitive(toolbar_channel_cb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_channel_offset_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_fcs_lb,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_button,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_crc_filter_combo,FALSE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_decryption_lb,TRUE);
gtk_widget_set_sensitive(airpcap_toolbar_keys_button,TRUE);
change_airpcap_settings = FALSE;
}
}
#if 0
/* Returs TRUE if the WEP key is valid, false otherwise */
gboolean
wep_key_is_valid(char* key)
{
size_t strsize, i;
if (key == NULL)
return FALSE;
strsize = strlen(key);
if ( (strsize > WEP_KEY_MAX_CHAR_SIZE) || (strsize < 2))
{
return FALSE;
}
if ((strsize % 2) != 0)
{
return FALSE;
}
for(i = 0; i < strsize; i++)
{
if (!g_ascii_isxdigit(key[i]))
{
return FALSE;
}
}
return TRUE;
}
#endif
/*
* 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)
{
gchar *key_string = NULL;
guint8 key_type = AIRPDCAP_KEY_TYPE_WEP;
keys_cb_data_t* user_data;
uat_t *uat;
guint i;
char* err = NULL;
uat_wep_key_record_t* wep_keys;
decryption_key_t* new_key;
/* Retrieve user data info */
user_data = (keys_cb_data_t*)ud;
if (g_ascii_strcasecmp(pref->name, "wep_key_table") == 0 && pref->type == PREF_UAT)
{
uat = pref->varp.uat;
/* This is just a sanity check. UAT should be loaded */
if (!uat->loaded)
{
if (!uat_load(uat, &err))
{
/* XXX - report the error */
g_free(err);
return 1;
}
}
for (i = 0, wep_keys = (uat_wep_key_record_t*)*uat->user_ptr; i < *uat->nrows_p; i++, wep_keys++)
{
/* strip out key type if present */
if (g_ascii_strncasecmp(wep_keys->string, STRING_KEY_TYPE_WEP ":", 4) == 0) {
key_type = AIRPDCAP_KEY_TYPE_WEP;
key_string = (gchar*)wep_keys->string+4;
}
else if (g_ascii_strncasecmp(wep_keys->string, STRING_KEY_TYPE_WPA_PWD ":", 8) == 0) {
key_string = (gchar*)wep_keys->string+8;
key_type = AIRPDCAP_KEY_TYPE_WPA_PWD;
}
else if (g_ascii_strncasecmp(wep_keys->string, STRING_KEY_TYPE_WPA_PSK ":", 8) == 0) {
key_string = (gchar*)wep_keys->string+8;
key_type = AIRPDCAP_KEY_TYPE_WPA_PSK;
}
else {
key_type = wep_keys->key;
key_string = (gchar*)wep_keys->string;
}
/* Here we have the string describing the key... */
new_key = parse_key_string(key_string, key_type);
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;
}
/* 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_)
{
keys_cb_data_t* user_data;
uat_t *uat;
gint i;
char* err = NULL;
uat_wep_key_record_t uat_key;
decryption_key_t* new_key;
/* Retrieve user data info */
user_data = (keys_cb_data_t*)ud;
if (g_ascii_strcasecmp(pref->name, "wep_key_table") == 0 && pref->type == PREF_UAT)
{
uat = pref->varp.uat;
if (!uat->loaded)
{
/* UAT will only be loaded if previous keys exist, so it may need
to be loaded now */
if (!uat_load(uat, &err))
{
/* XXX - report the error */
g_free(err);
return 1;
}
uat->loaded = 1;
}
/* Free the old records */
uat_clear(uat);
for (i = 0; i < user_data->number_of_keys; i++)
{
new_key = (decryption_key_t*)g_list_nth_data(user_data->list,i);
uat_key.string = get_key_string(new_key);
uat_key.key = new_key->type;
uat_add_record(uat, &uat_key, TRUE);
}
if (!uat_save(uat, &err))
{
/* XXX - report the error */
g_free(err);
return 1;
}
}
return 0;
}
/*
* This function will tell the airpcap driver the key list to use
* This will be stored into the registry...
*/
static gboolean
write_wlan_driver_wep_keys_to_registry(GList* key_list)
{
guint i,j,k,n,y;
GString *new_key;
gchar s[3];
PAirpcapKeysCollection KeysCollection;
guint KeysCollectionSize;
guint8 KeyByte;
guint 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++;
/*
* Calculate the size of the keys collection
*/
KeysCollectionSize = (guint)AirpcapKeysCollectionSize(keys_in_list);
/*
* 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 supported 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 = (guint) 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 = (guint8)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 read the Decryption Keys from the preferences and store them
* properly into the airpcap adapter.
*/
static gboolean
load_wlan_driver_wep_keys(void)
{
keys_cb_data_t* user_data;
/* 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 */
g_list_foreach(user_data->list, (GFunc)free_key_string, NULL);
/* 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...
*/
static gboolean
write_wlan_wep_keys_to_registry(airpcap_if_info_t* info_if, GList* key_list)
{
guint i,j;
GString *new_key;
gchar s[3];
PAirpcapKeysCollection KeysCollection;
guint KeysCollectionSize;
guint8 KeyByte;
guint keys_in_list = 0;
decryption_key_t* key_item = NULL;
keys_in_list = g_list_length(key_list);
/*
* Calculate the size of the keys collection
*/
KeysCollectionSize = (guint)AirpcapKeysCollectionSize(keys_in_list);
/*
* 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 = (guint) 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 = (guint8)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;
}
/*
* Returns the ASCII string of a key given the key bytes
*/
static gchar*
airpcap_get_key_string(AirpcapKey key)
{
unsigned int j = 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", key.KeyData[j]);
/*
* XXX - use g_strconcat() or GStrings instead ???
*/
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;
}
/*
* Function used to save to the preference file the Decryption Keys.
*/
static int
save_wlan_driver_wep_keys(void)
{
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 0;
/* 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 */
if (fake_info_if->keysCollectionSize != 0)
keys_in_list = AirpcapKeysCollectionSizeToKeyCount(fake_info_if->keysCollectionSize);
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.
*/
static int
save_wlan_wireshark_wep_keys(GList* key_ls)
{
GList* key_list = NULL;
guint keys_in_list,i;
keys_cb_data_t* user_data;
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;
}
/*
* 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_p)
{
airpcap_if_info_t* if_info = NULL;
if ((prefs.capture_device != NULL) && (*prefs.capture_device != '\0'))
{
if_info = get_airpcap_if_from_name(airpcap_if_list_p,
get_if_name(prefs.capture_device));
}
return if_info;
}
/*
* DECRYPTION KEYS FUNCTIONS
*/
#if 0
/*
* 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");
}
#endif
/*
* 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 = AirpcapKeysCollectionSizeToKeyCount(info_if->keysCollectionSize);
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 = (guint) new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an hexadecimal 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(void)
{
/* 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 = AirpcapKeysCollectionSizeToKeyCount(fake_info_if->keysCollectionSize);
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 = (guint) new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an hexadecimal 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(void)
{
keys_cb_data_t *wep_user_data = 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 */
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;
}
static guint
test_if_on(pref_t *pref, gpointer ud)
{
gboolean *is_on;
gboolean number;
/* Retrieve user data info */
is_on = (gboolean*)ud;
if (g_ascii_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;
}
/*
* 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)
{
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);
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 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;
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;
}
/*
* Returns TRUE if the Wireshark decryption is active, false otherwise
* XXX - Should we just add a routine to packet-ieee80211.c to grab this directly?
*/
gboolean
wireshark_decryption_on(void)
{
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(void)
{
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;
}
static guint
set_on_off(pref_t *pref, gpointer ud)
{
gboolean *is_on;
/* Retrieve user data info */
is_on = (gboolean*)ud;
if (g_ascii_strncasecmp(pref->name, "enable_decryption", 17) == 0 && pref->type == PREF_BOOL)
{
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(g_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(g_airpcap_if_list,i);
if (curr_if != NULL)
{
ad = airpcap_if_open(curr_if->name, ebuf);
if (ad)
{
curr_if->DecryptionOn = 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;
}
/*
* Add a key (string) to the given list
*/
void
airpcap_add_key_to_list(GtkListStore *key_list_store, gchar* type, gchar* key, gchar* ssid)
{
GtkTreeIter iter;
gtk_list_store_insert_with_values(key_list_store , &iter, G_MAXINT,
KL_COL_TYPE, type,
KL_COL_KEY, key,
KL_COL_SSID, ssid,
-1);
}
/*
* Fill the list with the keys. BEWARE! At this point, Wireshark and Drivers
* keys should be EQUALS! But is better to load keys from Wireshark, because
* the driver is not always present, and maybe that cannot support some keys
* (i.e. the WPA problem)
*/
void
airpcap_fill_key_list(GtkListStore *key_list_store)
{
const gchar* s = NULL;
unsigned int i,n;
airpcap_if_info_t* fake_if_info;
GList* wireshark_key_list = NULL;
decryption_key_t* curr_key = NULL;
GtkTreeIter iter;
fake_if_info = airpcap_driver_fake_if_info_new();
/* We can retrieve the driver's key list (i.e. we have the right .dll)*/
wireshark_key_list = get_wireshark_keys();
n = g_list_length(wireshark_key_list);
for(i = 0; i < n; i++)
{
curr_key = (decryption_key_t*)g_list_nth_data(wireshark_key_list,i);
if (curr_key->type == AIRPDCAP_KEY_TYPE_WEP)
{
gtk_list_store_insert_with_values(key_list_store , &iter, G_MAXINT,
KL_COL_TYPE, AIRPCAP_WEP_KEY_STRING,
KL_COL_KEY, curr_key->key->str,
KL_COL_SSID, "",
-1);
}
else if (curr_key->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
{
if (curr_key->ssid != NULL)
s = format_uri(curr_key->ssid, ":");
else
s = "";
gtk_list_store_insert_with_values(key_list_store , &iter, G_MAXINT,
KL_COL_TYPE, AIRPCAP_WPA_PWD_KEY_STRING,
KL_COL_KEY, curr_key->key->str,
KL_COL_SSID, s,
-1);
}
else if (curr_key->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
{
gtk_list_store_insert_with_values(key_list_store , &iter, G_MAXINT,
KL_COL_TYPE, AIRPCAP_WPA_BIN_KEY_STRING,
KL_COL_KEY, curr_key->key->str,
KL_COL_SSID, "",
-1);
}
}
airpcap_if_info_free(fake_if_info);
return;
}
/*
* Function used to retrieve the AirpcapValidationType given the string name.
*/
AirpcapValidationType
airpcap_get_validation_type(const gchar* name)
{
if (!(g_ascii_strcasecmp(AIRPCAP_VALIDATION_TYPE_NAME_ALL,name)))
{
return AIRPCAP_VT_ACCEPT_EVERYTHING;
}
else if (!(g_ascii_strcasecmp(AIRPCAP_VALIDATION_TYPE_NAME_CORRECT,name)))
{
return AIRPCAP_VT_ACCEPT_CORRECT_FRAMES;
}
else if (!(g_ascii_strcasecmp(AIRPCAP_VALIDATION_TYPE_NAME_CORRUPT,name)))
{
return AIRPCAP_VT_ACCEPT_CORRUPT_FRAMES;
}
return AIRPCAP_VT_UNKNOWN;
}
/*
* Function used to retrieve the string name given an AirpcapValidationType,
* or NULL in case of error
*/
const gchar*
airpcap_get_validation_name(AirpcapValidationType vt)
{
if (vt == AIRPCAP_VT_ACCEPT_EVERYTHING)
{
return AIRPCAP_VALIDATION_TYPE_NAME_ALL;
}
else if (vt == AIRPCAP_VT_ACCEPT_CORRECT_FRAMES)
{
return AIRPCAP_VALIDATION_TYPE_NAME_CORRECT;
}
else if (vt == AIRPCAP_VT_ACCEPT_CORRUPT_FRAMES)
{
return AIRPCAP_VALIDATION_TYPE_NAME_CORRUPT;
}
else if (vt == AIRPCAP_VT_UNKNOWN)
{
return AIRPCAP_VALIDATION_TYPE_NAME_UNKNOWN;
}
return NULL;
}
/*
* Return an appropriate combo box entry number for the given an AirpcapValidationType,
* defaulting to 0
*/
gint
airpcap_get_validation_combo_entry(AirpcapValidationType vt)
{
switch (vt) {
case AIRPCAP_VT_ACCEPT_CORRECT_FRAMES:
return 1;
break;
case AIRPCAP_VT_ACCEPT_CORRUPT_FRAMES:
return 2;
break;
default:
return 0;
break;
}
}
/*
* Returns the AirpcapLinkType corresponding to the given string name.
*/
AirpcapLinkType
airpcap_get_link_type(const gchar* name)
{
if (!(g_ascii_strcasecmp(AIRPCAP_LINK_TYPE_NAME_802_11_ONLY,name))) {
return AIRPCAP_LT_802_11;
}else if (!(g_ascii_strcasecmp(AIRPCAP_LINK_TYPE_NAME_802_11_PLUS_RADIO,name))) {
return AIRPCAP_LT_802_11_PLUS_RADIO;
}else if (!(g_ascii_strcasecmp(AIRPCAP_LINK_TYPE_NAME_802_11_PLUS_PPI,name))) {
return AIRPCAP_LT_802_11_PLUS_PPI;
}else{
return AIRPCAP_LT_UNKNOWN;
}
}
/*
* Returns the string name corresponding to the given AirpcapLinkType, or
* NULL in case of error.
*/
const gchar*
airpcap_get_link_name(AirpcapLinkType lt)
{
if (lt == AIRPCAP_LT_802_11) {
return AIRPCAP_LINK_TYPE_NAME_802_11_ONLY;
}else if (lt == AIRPCAP_LT_802_11_PLUS_RADIO) {
return AIRPCAP_LINK_TYPE_NAME_802_11_PLUS_RADIO;
}else if (lt == AIRPCAP_LT_802_11_PLUS_PPI) {
return AIRPCAP_LINK_TYPE_NAME_802_11_PLUS_PPI;
}else if (lt == AIRPCAP_LT_UNKNOWN) {
return AIRPCAP_LINK_TYPE_NAME_UNKNOWN;
}
return NULL;
}
/*
* Sets the entry of the validation combo using the AirpcapValidationType.
*/
void
airpcap_validation_type_combo_set_by_type(GtkWidget* c, AirpcapValidationType type)
{
gtk_combo_box_set_active(GTK_COMBO_BOX(c), airpcap_get_validation_combo_entry(type));
}
/*
* Returns the string corresponding to the given guint (1-14, for channel only)
*/
gchar*
airpcap_get_channel_name(guint n)
{
return g_strdup_printf("%d",n);
}
/*
* Set the combo box entry string given a channel frequency
*/
void
airpcap_channel_combo_set_by_frequency(GtkWidget* cb, guint chan_freq)
{
guint i;
for (i = 0; i < airpcap_if_selected->numSupportedChannels; i++) {
if (airpcap_if_selected->pSupportedChannels[i].Frequency == chan_freq) {
gtk_combo_box_set_active(GTK_COMBO_BOX(cb), i);
break;
}
}
}
/*
* Change channel of Airpcap Adapter
*/
static gboolean
airpcap_update_frequency_and_offset(airpcap_if_info_t* if_info)
{
gchar ebuf[AIRPCAP_ERRBUF_SIZE];
PAirpcapHandle ad;
gboolean return_value = FALSE;
if (if_info != NULL) {
ad = airpcap_if_open(if_info->name, ebuf);
if (ad != NULL) {
return_value = airpcap_if_set_device_channel_ex(ad,if_info->channelInfo);
airpcap_if_close(ad);
}
}
return return_value;
}
/*
* Changed callback for the channel combobox - common routine
*/
static void
airpcap_channel_changed_common(GtkWidget *channel_cb, gpointer channel_offset_cb, gboolean set)
{
gint cur_chan_idx;
if (channel_cb && channel_offset_cb && change_airpcap_settings && airpcap_if_active) {
cur_chan_idx = gtk_combo_box_get_active(GTK_COMBO_BOX(channel_cb));
if (cur_chan_idx >= 0 && cur_chan_idx < (gint) airpcap_if_active->numSupportedChannels) {
if (set) {
airpcap_if_active->channelInfo.Frequency = airpcap_if_active->pSupportedChannels[cur_chan_idx].Frequency;
}
airpcap_update_channel_offset_combo(airpcap_if_active,
airpcap_if_active->channelInfo.Frequency,
GTK_WIDGET(channel_offset_cb), set);
}
}
}
/*
* Changed callback for the channel combobox - set channel and offset
*/
void
airpcap_channel_changed_set_cb(GtkWidget *channel_cb, gpointer channel_offset_cb)
{
airpcap_channel_changed_common(channel_cb, channel_offset_cb, TRUE);
}
/*
* Changed callback for the channel combobox - don't set channel and offset
*/
void
airpcap_channel_changed_noset_cb(GtkWidget *channel_cb, gpointer channel_offset_cb)
{
airpcap_channel_changed_common(channel_cb, channel_offset_cb, FALSE);
}
static int
airpcap_get_selected_channel_offset(GtkWidget *channel_offset_cb) {
int offset;
gchar *off_str;
int retval = 0;
if (channel_offset_cb == NULL || !gtk_widget_get_sensitive(channel_offset_cb)) {
return 0;
}
off_str = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT(channel_offset_cb));
if (off_str && (g_ascii_strcasecmp("", off_str)))
{
if (airpcap_if_selected != NULL)
{
if (sscanf(off_str, "%d", &offset) == 1) {
if (offset >= -1 && offset <= 1) {
retval = offset;
}
}
}
}
g_free(off_str);
return retval;
}
/*
* Changed callback for the channel offset combobox
*/
void
airpcap_channel_offset_changed_cb(GtkWidget *channel_offset_cb, gpointer data _U_)
{
airpcap_if_selected->channelInfo.ExtChannel = airpcap_get_selected_channel_offset(channel_offset_cb);
airpcap_if_selected->saved = FALSE;
change_airpcap_settings = TRUE;
if (!airpcap_update_frequency_and_offset(airpcap_if_selected)) {
simple_dialog(ESD_TYPE_ERROR,ESD_BTN_OK,
"Unable to set extension channel %d",
airpcap_if_selected->channelInfo.ExtChannel);
}
}
/*
* Update the channel offset of the given combobox according to the given frequency.
*/
void
airpcap_update_channel_offset_combo(airpcap_if_info_t* if_info, guint chan_freq, GtkWidget *channel_offset_cb, gboolean set)
{
gint current_offset;
gint new_offset;
guint i;
gint active_idx = 0;
gint idx_count = -1;
if (!if_info || airpcap_if_is_any(if_info) || if_info->pSupportedChannels == NULL || if_info->numSupportedChannels < 1) {
gtk_widget_set_sensitive(GTK_WIDGET(channel_offset_cb),FALSE);
gtk_combo_box_set_active(GTK_COMBO_BOX(channel_offset_cb), -1);
return;
}
new_offset = current_offset = if_info->channelInfo.ExtChannel;
/* Clear out the list */
while (gtk_tree_model_iter_n_children(gtk_combo_box_get_model(GTK_COMBO_BOX(channel_offset_cb)), NULL) > 0) {
gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(channel_offset_cb), 0);
}
gtk_widget_set_sensitive(GTK_WIDGET(channel_offset_cb), TRUE);
for (i = 0; i < if_info->numSupportedChannels; i++) {
if (if_info->pSupportedChannels[i].Frequency == chan_freq) {
/* If we can't be low or high, nudge the offset to 0 */
if (current_offset == -1 && !(if_info->pSupportedChannels[i].Flags & FLAG_CAN_BE_LOW)) {
new_offset = 0;
} else if (current_offset == 1 && !(if_info->pSupportedChannels[i].Flags & FLAG_CAN_BE_HIGH)) {
new_offset = 0;
}
if ((if_info->pSupportedChannels[i].Flags & FLAG_CAN_BE_LOW)) {
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(channel_offset_cb), "-1");
idx_count++;
if (new_offset == -1) {
active_idx = idx_count;
}
}
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(channel_offset_cb), "0");
idx_count++;
if (new_offset == 0) {
active_idx = idx_count;
}
if ((if_info->pSupportedChannels[i].Flags & FLAG_CAN_BE_HIGH)) {
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(channel_offset_cb), "+1");
idx_count++;
if (new_offset == 1) {
active_idx = idx_count;
}
}
break;
}
}
gtk_combo_box_set_active(GTK_COMBO_BOX(channel_offset_cb), active_idx);
if (set) {
change_airpcap_settings = TRUE;
if_info->channelInfo.ExtChannel = new_offset;
if (!airpcap_update_frequency_and_offset(if_info)) {
simple_dialog(ESD_TYPE_ERROR,ESD_BTN_OK,"Adapter failed to be set with the following settings: Frequency - %d Extension Channel - %d", if_info->channelInfo.Frequency, if_info->channelInfo.ExtChannel);
}
}
if (idx_count < 1) {
gtk_widget_set_sensitive(channel_offset_cb, FALSE);
}
}
/*
* Returns '1' if this is the "Any" adapter, '0' otherwise
*/
int
airpcap_if_is_any(airpcap_if_info_t* if_info)
{
if (g_ascii_strcasecmp(if_info->name,AIRPCAP_DEVICE_ANY_EXTRACT_STRING)==0)
return 1;
else
return 0;
}
/*
* Update channel combo box. If the airpcap interface is "Any", the combo box will be disabled.
*/
void
airpcap_update_channel_combo(GtkWidget* channel_cb, airpcap_if_info_t* if_info)
{
if (!if_info || airpcap_if_is_any(if_info) || !airpcap_if_selected)
{
gtk_combo_box_set_active(GTK_COMBO_BOX(channel_cb), -1);
change_airpcap_settings = FALSE;
gtk_widget_set_sensitive(GTK_WIDGET(channel_cb),FALSE);
}
else
{
while (gtk_tree_model_iter_n_children(gtk_combo_box_get_model(GTK_COMBO_BOX(channel_cb)), NULL) > 0) {
gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(channel_cb), 0);
}
if (if_info->pSupportedChannels != NULL && if_info->numSupportedChannels > 0) {
guint i;
for (i = 0; i<(if_info->numSupportedChannels); i++) {
gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT(channel_cb), ieee80211_mhz_to_str(airpcap_if_selected->pSupportedChannels[i].Frequency));
}
}
airpcap_channel_combo_set_by_frequency(channel_cb, if_info->channelInfo.Frequency);
change_airpcap_settings = TRUE;
gtk_widget_set_sensitive(GTK_WIDGET(channel_cb), TRUE);
}
}
/*
* Takes the keys from the GtkList widget, and add them to the interface list
*/
static void
airpcap_add_keys_to_driver_from_list(GtkListStore *key_list_store, airpcap_if_info_t *fake_if_info)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeModel *model = GTK_TREE_MODEL(key_list_store);
/* airpcap stuff */
guint i, j;
gchar s[3];
PAirpcapKeysCollection KeysCollection;
guint KeysCollectionSize;
guint8 KeyByte;
guint keys_in_list = 0;
gchar *row_type, *row_key; /* SSID not needed for AirPcap */
size_t key_len;
if (fake_if_info == NULL)
return;
keys_in_list = gtk_tree_model_iter_n_children(model, NULL);
/*
* Calculate the size of the keys collection
*/
KeysCollectionSize = (guint)AirpcapKeysCollectionSize(keys_in_list);
/*
* Allocate the collection
*/
KeysCollection = (PAirpcapKeysCollection)g_malloc(KeysCollectionSize);
/*
* Populate the key collection
*/
KeysCollection->nKeys = keys_in_list;
for(i = 0; i < keys_in_list; i++)
{
path = gtk_tree_path_new_from_indices(i, -1);
gtk_tree_model_get_iter(model, &iter, path);
gtk_tree_path_free(path);
gtk_tree_model_get(model, &iter,
KL_COL_TYPE, &row_type,
KL_COL_KEY, &row_key,
-1);
if (g_ascii_strcasecmp(row_type,AIRPCAP_WEP_KEY_STRING) == 0)
KeysCollection->Keys[i].KeyType = AIRPDCAP_KEY_TYPE_WEP;
else if (g_ascii_strcasecmp(row_type,AIRPCAP_WPA_PWD_KEY_STRING) == 0)
KeysCollection->Keys[i].KeyType = AIRPDCAP_KEY_TYPE_WPA_PWD;
else if (g_ascii_strcasecmp(row_type,AIRPCAP_WPA_BIN_KEY_STRING) == 0)
KeysCollection->Keys[i].KeyType = AIRPDCAP_KEY_TYPE_WPA_PMK;
/* Retrieve the Item corresponding to the i-th key */
key_len = strlen(row_key);
KeysCollection->Keys[i].KeyLen = (guint) key_len / 2;
memset(&KeysCollection->Keys[i].KeyData, 0, sizeof(KeysCollection->Keys[i].KeyData));
/* Key must be saved in a different way, depending on its type... */
if (KeysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
{
for(j = 0 ; j < key_len; j += 2)
{
s[0] = row_key[j];
s[1] = row_key[j+1];
s[2] = '\0';
KeyByte = (guint8)strtol(s, NULL, 16);
KeysCollection->Keys[i].KeyData[j / 2] = KeyByte;
}
}
g_free(row_type);
g_free(row_key);
}
/*
* Free the old adapter key collection!
*/
if (fake_if_info->keysCollection != NULL)
g_free(fake_if_info->keysCollection);
/*
* Set this collection ad the new one
*/
fake_if_info->keysCollection = KeysCollection;
fake_if_info->keysCollectionSize = KeysCollectionSize;
return;
}
/*
* This function will take the current keys (widget list), specified for the
* current adapter, and save them as default for ALL the others.
*/
void
airpcap_read_and_save_decryption_keys_from_list_store(GtkListStore* key_list_store, airpcap_if_info_t* info_if, GList* if_list)
{
GtkTreeIter iter;
GtkTreeModel *model = GTK_TREE_MODEL(key_list_store);
gboolean items_left;
gint if_n = 0;
gint i = 0;
airpcap_if_info_t* curr_if = NULL;
airpcap_if_info_t* fake_info_if = NULL;
GList* key_list = NULL;
char* tmp_type = NULL;
char* tmp_key = NULL;
char* tmp_ssid = NULL;
decryption_key_t* tmp_dk=NULL;
/*
* Save the keys for Wireshark...
*/
/* Create a list of keys from the list store */
for (items_left = gtk_tree_model_get_iter_first (model, &iter);
items_left;
items_left = gtk_tree_model_iter_next (model, &iter)) {
gtk_tree_model_get(model, &iter,
KL_COL_TYPE, &tmp_type,
KL_COL_KEY, &tmp_key,
KL_COL_SSID, &tmp_ssid,
-1);
if (g_ascii_strcasecmp(tmp_type, AIRPCAP_WEP_KEY_STRING) == 0)
{
tmp_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
tmp_dk->key = g_string_new(tmp_key);
tmp_dk->ssid = NULL;
tmp_dk->type = AIRPDCAP_KEY_TYPE_WEP;
tmp_dk->bits = (guint) tmp_dk->key->len * 4;
key_list = g_list_append(key_list,tmp_dk);
}
else if (g_ascii_strcasecmp(tmp_type, AIRPCAP_WPA_PWD_KEY_STRING) == 0)
{
tmp_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
tmp_dk->key = g_string_new(tmp_key);
tmp_dk->ssid = g_byte_array_new();
uri_str_to_bytes(tmp_ssid?tmp_ssid:"", tmp_dk->ssid);
tmp_dk->type = AIRPDCAP_KEY_TYPE_WPA_PWD;
tmp_dk->bits = 256;
key_list = g_list_append(key_list,tmp_dk);
}
else if (g_ascii_strcasecmp(tmp_type, AIRPCAP_WPA_BIN_KEY_STRING) == 0)
{
tmp_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
tmp_dk->key = g_string_new(tmp_key);
tmp_dk->ssid = NULL; /* No SSID in this case */
tmp_dk->type = AIRPDCAP_KEY_TYPE_WPA_PMK;
tmp_dk->bits = 256;
key_list = g_list_append(key_list,tmp_dk);
}
g_free(tmp_type);
g_free(tmp_ssid);
}
save_wlan_wireshark_wep_keys(key_list);
/* The key_list has been freed!!! */
/*
* Save the key list for driver.
*/
if ( (if_list == NULL) || (info_if == NULL) ) return;
fake_info_if = airpcap_driver_fake_if_info_new();
airpcap_add_keys_to_driver_from_list(key_list_store,fake_info_if);
airpcap_save_driver_if_configuration(fake_info_if);
airpcap_if_info_free(fake_info_if);
if_n = g_list_length(if_list);
/* For all the adapters in the list, empty the key list */
for(i = 0; i < if_n; i++)
{
curr_if = (airpcap_if_info_t*)g_list_nth_data(if_list,i);
if (curr_if != NULL)
{
/* XXX - Set an empty collection */
airpcap_if_clear_decryption_settings(curr_if);
/* Save to registry */
airpcap_save_selected_if_configuration(curr_if);
}
}
}
/*
* This function will load from the preferences file ALL the
* keys (WEP, WPA and WPA_BIN) and will set them as default for
* each adapter. To do this, it will save the keys in the registry...
* A check will be performed, to make sure that keys found in
* registry and keys found in Wireshark preferences are the same. If not,
* the user will be asked to choose if use all keys (merge them),
* or use Wireshark preferences ones. In the last case, registry keys will
* be overwritten for all the connected AirPcap adapters.
* In the first case, adapters will use their own keys, but those
* keys will not be accessible via Wireshark...
*/
gboolean
airpcap_check_decryption_keys(GList* if_list)
{
gint if_n = 0;
gint i = 0;
gint n_adapters_keys = 0;
gint n_driver_keys = 0;
airpcap_if_info_t* curr_if = NULL;
GList* wireshark_key_list;
GList* driver_key_list;
GList* curr_adapter_key_list;
gboolean equals = TRUE;
gboolean adapters_keys_equals=TRUE;
/*
* If no AirPcap interface is found, return TRUE, so Wireshark
* will use HIS OWN keys.
*/
if (if_list == NULL)
return TRUE;
if_n = g_list_length(if_list);
/* Get Wireshark preferences keys */
wireshark_key_list = get_wireshark_keys();
/* Retrieve AirPcap driver's keys */
driver_key_list = get_airpcap_driver_keys();
n_driver_keys = g_list_length(driver_key_list);
equals &= key_lists_are_equal(wireshark_key_list,driver_key_list);
for(i = 0; i < if_n; i++)
{
curr_if = (airpcap_if_info_t*)g_list_nth_data(if_list,i);
curr_adapter_key_list = get_airpcap_device_keys(curr_if);
n_adapters_keys += g_list_length(curr_adapter_key_list);
adapters_keys_equals &= key_lists_are_equal(wireshark_key_list,curr_adapter_key_list);
}
if (n_adapters_keys != 0) /* If for some reason at least one specific key has been found */
equals &= adapters_keys_equals; /* */
if (n_driver_keys == 0) /* No keys set in any of the AirPcap adapters... */
return TRUE; /* Use Wireshark keys and set them ad default for airpcap devices */
return equals;
}
/*
* This function will load from the preferences file ALL the
* keys (WEP, WPA_PWD and WPA_BIN) and will set them as default for
* each adapter. To do this, it will save the keys in the registry...
* A check will be performed, to make sure that keys found in
* registry and keys found in Wireshark preferences are the same. If not,
* the user will be asked to choose if use all keys (merge them),
* or use Wireshark preferences ones. In the last case, registry keys will
* be overwritten for all the connected AirPcap adapters.
* In the first case, adapters will use their own keys, but those
* keys will not be accessible via Wireshark...
*/
void
airpcap_load_decryption_keys(GList* if_list)
{
gint if_n = 0;
gint i = 0;
if (if_list == NULL) return;
if_n = g_list_length(if_list);
for(i = 0; i < if_n; i++)
{
load_wlan_driver_wep_keys();
}
}
/*
* This function will set the gibven GList of decryption_key_t structures
* as the defoult for both Wireshark and the AirPcap adapters...
*/
void
airpcap_save_decryption_keys(GList* key_list, GList* adapters_list)
{
gint if_n = 0;
gint i = 0;
airpcap_if_info_t* curr_if = NULL;
GList* empty_key_list = NULL;
if ( (key_list == NULL) || (adapters_list == NULL)) return;
if_n = g_list_length(adapters_list);
/* Set the driver's global list of keys. */
write_wlan_driver_wep_keys_to_registry(key_list);
/* Empty the key list for each interface */
for(i = 0; i < if_n; i++)
{
curr_if = (airpcap_if_info_t*)g_list_nth_data(adapters_list,i);
write_wlan_wep_keys_to_registry(curr_if,empty_key_list);
}
/*
* This will set the keys of the current adapter as Wireshark default...
* Now all the adapters have the same keys, so curr_if is ok as any other...
*/
save_wlan_wireshark_wep_keys(key_list);
}
/*
* This function is used to enable/disable the toolbar widgets
* depending on the type of interface selected... Not the whole
* toolbar must be grayed/enabled ... Only some widgets...
*/
void
airpcap_enable_toolbar_widgets(GtkWidget* w, gboolean en)
{
GtkWidget *toolbar_tb,
*if_description_lb,
*toolbar_channel_cb,
*channel_lb,
*channel_offset_cb,
*channel_offset_lb,
*fcs_cb,
*fcs_lb,
*advanced_bt;
if (w == NULL)
return;
toolbar_tb = w;
if_description_lb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_INTERFACE_KEY);
channel_lb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_CHANNEL_LABEL_KEY);
toolbar_channel_cb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_CHANNEL_KEY);
channel_offset_cb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_KEY);
channel_offset_lb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_CHANNEL_OFFSET_LABEL_KEY);
fcs_lb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_FCS_FILTER_LABEL_KEY);
fcs_cb = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_FCS_FILTER_KEY);
advanced_bt = (GtkWidget *)g_object_get_data(G_OBJECT(toolbar_tb),AIRPCAP_TOOLBAR_ADVANCED_KEY);
if (if_description_lb != NULL)
gtk_widget_set_sensitive(if_description_lb,en);
if (channel_lb != NULL)
gtk_widget_set_sensitive(channel_lb,en);
if (toolbar_channel_cb != NULL)
gtk_widget_set_sensitive(toolbar_channel_cb,en);
if (channel_offset_cb != NULL)
gtk_widget_set_sensitive(channel_offset_cb,en);
if (channel_offset_lb != NULL)
gtk_widget_set_sensitive(channel_offset_lb,en);
if (fcs_lb != NULL)
gtk_widget_set_sensitive(fcs_lb,en);
if (fcs_cb != NULL)
gtk_widget_set_sensitive(fcs_cb,en);
if (advanced_bt != NULL)
gtk_widget_set_sensitive(advanced_bt,en);
return;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/