5 * Giorgio Tino <giorgio.tino@cacetech.com>
6 * Copyright (c) CACE Technologies, LLC 2006
8 * Wireshark - Network traffic analyzer
9 * By Gerald Combs <gerald@wireshark.org>
10 * Copyright 2000 Gerald Combs
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
42 #include <epan/packet.h>
43 #include <epan/prefs.h>
44 #include <epan/prefs-int.h>
45 #include "capture_ui_utils.h"
47 #include "simple_dialog.h"
50 #include "airpcap_loader.h"
53 #include "../airpdcap/airpdcap_ws.h"
56 * We load dinamically the dag library in order link it only when
57 * it's present on the system
59 static HMODULE AirpcapLib = NULL;
62 * Set to TRUE if the DLL was successfully loaded AND all functions
65 static gboolean AirpcapLoaded = FALSE;
67 static AirpcapGetLastErrorHandler g_PAirpcapGetLastError;
68 static AirpcapGetDeviceListHandler g_PAirpcapGetDeviceList;
69 static AirpcapFreeDeviceListHandler g_PAirpcapFreeDeviceList;
70 static AirpcapOpenHandler g_PAirpcapOpen;
71 static AirpcapCloseHandler g_PAirpcapClose;
72 static AirpcapGetLinkTypeHandler g_PAirpcapGetLinkType;
73 static AirpcapSetLinkTypeHandler g_PAirpcapSetLinkType;
74 static AirpcapSetKernelBufferHandler g_PAirpcapSetKernelBuffer;
75 static AirpcapSetFilterHandler g_PAirpcapSetFilter;
76 static AirpcapGetMacAddressHandler g_PAirpcapGetMacAddress;
77 static AirpcapSetMinToCopyHandler g_PAirpcapSetMinToCopy;
78 static AirpcapGetReadEventHandler g_PAirpcapGetReadEvent;
79 static AirpcapReadHandler g_PAirpcapRead;
80 static AirpcapGetStatsHandler g_PAirpcapGetStats;
81 static AirpcapTurnLedOnHandler g_PAirpcapTurnLedOn;
82 static AirpcapTurnLedOffHandler g_PAirpcapTurnLedOff;
83 static AirpcapGetDeviceChannelHandler g_PAirpcapGetDeviceChannel;
84 static AirpcapSetDeviceChannelHandler g_PAirpcapSetDeviceChannel;
85 static AirpcapGetFcsPresenceHandler g_PAirpcapGetFcsPresence;
86 static AirpcapSetFcsPresenceHandler g_PAirpcapSetFcsPresence;
87 static AirpcapGetFcsValidationHandler g_PAirpcapGetFcsValidation;
88 static AirpcapSetFcsValidationHandler g_PAirpcapSetFcsValidation;
89 static AirpcapGetDeviceKeysHandler g_PAirpcapGetDeviceKeys;
90 static AirpcapSetDeviceKeysHandler g_PAirpcapSetDeviceKeys;
91 static AirpcapGetDriverKeysHandler g_PAirpcapGetDriverKeys;
92 static AirpcapSetDriverKeysHandler g_PAirpcapSetDriverKeys;
93 static AirpcapGetDecryptionStateHandler g_PAirpcapGetDecryptionState;
94 static AirpcapSetDecryptionStateHandler g_PAirpcapSetDecryptionState;
95 static AirpcapGetDriverDecryptionStateHandler g_PAirpcapGetDriverDecryptionState;
96 static AirpcapSetDriverDecryptionStateHandler g_PAirpcapSetDriverDecryptionState;
97 static AirpcapStoreCurConfigAsAdapterDefaultHandler g_PAirpcapStoreCurConfigAsAdapterDefault;
98 static AirpcapGetVersionHandler g_PAirpcapGetVersion;
100 /* Airpcap interface list */
101 GList *airpcap_if_list = NULL;
103 /* Airpcap current selected interface */
104 airpcap_if_info_t *airpcap_if_selected = NULL;
106 /* Airpcap current active interface */
107 airpcap_if_info_t *airpcap_if_active = NULL;
109 /* WLAN preferences pointer */
110 module_t *wlan_prefs = NULL;
113 * Callback used by the load_wlan_keys() routine in order to read a WEP decryption key
116 get_wep_key(pref_t *pref, gpointer ud _U_)
118 gchar *my_string = NULL;
119 keys_cb_data_t* user_data;
121 decryption_key_t* new_key;
123 /* Retrieve user data info */
124 user_data = (keys_cb_data_t*)ud;
126 if (g_strncasecmp(pref->name, "wep_key", 7) == 0 && pref->type == PREF_STRING)
128 my_string = g_strdup(*pref->varp.string);
130 /* Here we have the string describing the key... */
131 new_key = parse_key_string(my_string);
135 /* Key is added only if not null ... */
136 user_data->list = g_list_append(user_data->list,new_key);
137 user_data->number_of_keys++;
138 user_data->current_index++;
144 /* Returs TRUE if the WEP key is valid, false otherwise */
146 wep_key_is_valid(char* key)
148 GString *new_key_string;
154 new_key_string = g_string_new(key);
156 if( ((new_key_string->len) > WEP_KEY_MAX_CHAR_SIZE) || ((new_key_string->len) < 2))
158 g_string_free(new_key_string,FALSE);
161 if((new_key_string->len % 2) != 0)
163 g_string_free(new_key_string,FALSE);
166 for(i = 0; i < new_key_string->len; i++)
168 if(!g_ascii_isxdigit(new_key_string->str[i]))
170 g_string_free(new_key_string,FALSE);
175 g_string_free(new_key_string,FALSE);
179 /* Callback used by the save_wlan_keys() routine in order to write a decryption key */
181 set_wep_key(pref_t *pref, gpointer ud _U_)
183 gchar *my_string = NULL;
184 keys_cb_data_t* user_data;
185 gint wep_key_number = 0;
187 decryption_key_t* new_key;
189 /* Retrieve user data info */
190 user_data = (keys_cb_data_t*)ud;
192 if (g_strncasecmp(pref->name, "wep_key", 7) == 0 && pref->type == PREF_STRING)
194 /* Ok, the pref we're gonna set is a wep_key ... but what number? */
195 sscanf(pref->name,"wep_key%d",&wep_key_number);
197 if(user_data->current_index < user_data->number_of_keys)
199 if(wep_key_number == (user_data->current_index+1))
201 /* Retrieve the nth decryption_key_t structure pointer */
202 new_key = (decryption_key_t*)g_list_nth_data(user_data->list,user_data->current_index);
204 /* Free the old key string */
205 g_free((void *)*pref->varp.string);
207 /* Create the new string describing the decryption key */
208 my_string = get_key_string(new_key);
210 /* Duplicate the string, and assign it to the variable pointer */
211 *pref->varp.string = (void *)g_strdup(my_string);
213 /* Free the previously allocated string */
217 else /* If the number of keys has been reduced somehow, we need to delete all the other keys
218 * (remember that the new ones have been probably overwritten)
221 g_free((void *)*pref->varp.string);
222 *pref->varp.string = (void *)g_strdup(""); /* Do not just free memory!!! Put an 'empty' string! */
224 user_data->current_index++;
231 * Function used to read the Decryption Keys from the preferences and store them
232 * properly into the airpcap adapter.
235 load_wlan_driver_wep_keys()
237 keys_cb_data_t* user_data;
241 /* Retrieve the wlan preferences */
242 wlan_prefs = prefs_find_module("wlan");
244 /* Allocate a structure used to keep infos between the callbacks */
245 user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
247 /* Fill the structure */
248 user_data->list = NULL;
249 user_data->current_index = 0;
250 user_data->number_of_keys= 0; /* Still unknown */
252 /* Run the callback on each 802.11 preference */
253 prefs_pref_foreach(wlan_prefs, get_wep_key, (gpointer)user_data);
255 /* Now the key list should be filled */
258 * Signal that we've changed things, and run the 802.11 dissector's
261 wlan_prefs->prefs_changed = TRUE;
263 prefs_apply(wlan_prefs);
265 write_wlan_driver_wep_keys_to_regitry(user_data->list);
268 /* free the WEP key string */
269 for(i=0;i<g_list_length(user_data->list);i++)
271 g_free(g_list_nth(user_data->list,i)->data);
274 /* free the (empty) list */
275 g_list_free(user_data->list);
277 /* free the user_data structure */
280 /* airpcap_if_info_free(fake_info_if); */
286 * This function will tell the airpcap driver the key list to use
287 * This will be stored into the registry...
290 write_wlan_wep_keys_to_regitry(airpcap_if_info_t* info_if, GList* key_list)
295 PAirpcapKeysCollection KeysCollection;
296 ULONG KeysCollectionSize;
298 UINT keys_in_list = 0;
299 decryption_key_t* key_item = NULL;
301 keys_in_list = g_list_length(key_list);
304 * Save the encryption keys, if we have any of them
306 KeysCollectionSize = 0;
309 * Calculate the size of the keys collection
311 KeysCollectionSize = sizeof(AirpcapKeysCollection) + keys_in_list * sizeof(AirpcapKey);
314 * Allocate the collection
316 KeysCollection = (PAirpcapKeysCollection)g_malloc(KeysCollectionSize);
323 * Populate the key collection
325 KeysCollection->nKeys = keys_in_list;
327 for(i = 0; i < keys_in_list; i++)
329 KeysCollection->Keys[i].KeyType = AIRPDCAP_KEY_TYPE_WEP;
331 /* Retrieve the Item corresponding to the i-th key */
332 key_item = (decryption_key_t*)g_list_nth_data(key_list,i);
333 new_key = g_string_new(key_item->key->str);
335 KeysCollection->Keys[i].KeyLen = new_key->len / 2;
336 memset(&KeysCollection->Keys[i].KeyData, 0, sizeof(KeysCollection->Keys[i].KeyData));
338 for(j = 0 ; j < new_key->len; j += 2)
340 s[0] = new_key->str[j];
341 s[1] = new_key->str[j+1];
343 KeyByte = (UCHAR)strtol(s, NULL, 16);
344 KeysCollection->Keys[i].KeyData[j / 2] = KeyByte;
347 g_string_free(new_key,TRUE);
351 * Free the old adapter key collection!
353 if(info_if->keysCollection != NULL)
354 g_free(info_if->keysCollection);
357 * Set this collection ad the new one
359 info_if->keysCollection = KeysCollection;
360 info_if->keysCollectionSize = KeysCollectionSize;
363 * Configuration must be saved
365 info_if->saved = FALSE;
368 * Write down the changes to the registry
370 airpcap_save_selected_if_configuration(info_if);
376 * This function will tell the airpcap driver the key list to use
377 * This will be stored into the registry...
380 write_wlan_driver_wep_keys_to_regitry(GList* key_list)
385 PAirpcapKeysCollection KeysCollection;
386 ULONG KeysCollectionSize;
388 UINT keys_in_list = 0;
389 decryption_key_t* key_item = NULL;
390 airpcap_if_info_t* fake_info_if = NULL;
392 /* Create the fake_info_if from the first adapter of the list */
393 fake_info_if = airpcap_driver_fake_if_info_new();
395 if(fake_info_if == NULL)
399 * XXX - When WPA will be supported, change this to: keys_in_list = g_list_length(key_list);
400 * but right now we will have to count only the WEP keys (or we will have a malloc-mess :-) )
402 n = g_list_length(key_list);
403 for(k = 0; k < n; k++ )
404 if(((decryption_key_t*)g_list_nth_data(key_list,k))->type == AIRPDCAP_KEY_TYPE_WEP)
408 * Save the encryption keys, if we have any of them
410 KeysCollectionSize = 0;
413 * Calculate the size of the keys collection
415 KeysCollectionSize = sizeof(AirpcapKeysCollection) + keys_in_list * sizeof(AirpcapKey);
418 * Allocate the collection
420 KeysCollection = (PAirpcapKeysCollection)g_malloc(KeysCollectionSize);
427 * Populate the key collection
429 KeysCollection->nKeys = keys_in_list;
432 * XXX - If we have, let's say, six keys, the first three are WEP, then two are WPA, and the
433 * last is WEP, we have to scroll the whole list (n) but increment the array counter only
434 * when a WEP key is found (y) .. When WPA will be supported by the driver, I'll have to change
437 y = 0; /* Current position in the key list */
439 for(i = 0; i < n; i++)
441 /* Retrieve the Item corresponding to the i-th key */
442 key_item = (decryption_key_t*)g_list_nth_data(key_list,i);
445 * XXX - The AIRPDCAP_KEY_TYPE_WEP is the only supportd right now!
446 * We will have to modify the AirpcapKey structure in order to
447 * support the other two types! What happens now, is that simply the
448 * not supported keys will just be discarded (they will be saved in wireshark though)
450 if(key_item->type == AIRPDCAP_KEY_TYPE_WEP)
452 KeysCollection->Keys[y].KeyType = AIRPDCAP_KEY_TYPE_WEP;
454 new_key = g_string_new(key_item->key->str);
456 KeysCollection->Keys[y].KeyLen = new_key->len / 2;
457 memset(&KeysCollection->Keys[y].KeyData, 0, sizeof(KeysCollection->Keys[y].KeyData));
459 for(j = 0 ; j < new_key->len; j += 2)
461 s[0] = new_key->str[j];
462 s[1] = new_key->str[j+1];
464 KeyByte = (UCHAR)strtol(s, NULL, 16);
465 KeysCollection->Keys[y].KeyData[j / 2] = KeyByte;
467 /* XXX - Change when WPA will be supported!!! */
469 g_string_free(new_key,TRUE);
471 else if(key_item->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
473 /* XXX - The driver cannot deal with this kind of key yet... */
475 else if(key_item->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
477 /* XXX - The driver cannot deal with this kind of key yet... */
482 * Free the old adapter key collection!
484 if(fake_info_if->keysCollection != NULL)
485 g_free(fake_info_if->keysCollection);
488 * Set this collection ad the new one
490 fake_info_if->keysCollection = KeysCollection;
491 fake_info_if->keysCollectionSize = KeysCollectionSize;
494 * Configuration must be saved
496 fake_info_if->saved = FALSE;
499 * Write down the changes to the registry
501 airpcap_save_driver_if_configuration(fake_info_if);
503 airpcap_if_info_free(fake_info_if);
509 * Function used to save to the preference file the Decryption Keys.
512 save_wlan_driver_wep_keys()
514 GList* key_list = NULL;
515 char* tmp_key = NULL;
516 guint keys_in_list,i;
517 keys_cb_data_t* user_data;
518 airpcap_if_info_t* fake_info_if = NULL;
520 /* Create the fake_info_if from the first adapter of the list */
521 fake_info_if = airpcap_driver_fake_if_info_new();
523 if(fake_info_if == NULL)
526 /* Retrieve the wlan preferences */
527 wlan_prefs = prefs_find_module("wlan");
529 /* Allocate a structure used to keep infos between the callbacks */
530 user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
532 /* Number of keys in key list */
533 /* Number of keys in key list */
534 if(fake_info_if->keysCollectionSize != 0)
535 keys_in_list = (guint)(fake_info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
539 for(i=0; i<keys_in_list; i++)
541 /* Only if it is a WEP key... */
542 if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
544 tmp_key = airpcap_get_key_string(fake_info_if->keysCollection->Keys[i]);
545 key_list = g_list_append(key_list,g_strdup(tmp_key));
550 /* Now we know the exact number of WEP keys in the list, so store it ... */
551 keys_in_list = g_list_length(key_list);
553 /* Fill the structure */
554 user_data->list = key_list;
555 user_data->current_index = 0;
556 user_data->number_of_keys= keys_in_list;
558 /* Retrieve the wlan preferences */
559 wlan_prefs = prefs_find_module("wlan");
561 /* Run the callback on each 802.11 preference */
562 prefs_pref_foreach(wlan_prefs, set_wep_key, (gpointer)user_data);
564 /* Signal that we've changed things, and run the 802.11 dissector's
566 wlan_prefs->prefs_changed = TRUE;
568 /* Apply changes for the specified preference */
569 prefs_apply(wlan_prefs);
572 /* free the WEP key string */
573 for(i=0;i<g_list_length(user_data->list);i++)
575 g_free(g_list_nth(user_data->list,i)->data);
578 /* free the (empty) list */
579 g_list_free(user_data->list);
581 /* free the user_data structure */
584 airpcap_if_info_free(fake_info_if);
590 * Function used to save to the preference file the Decryption Keys.
593 save_wlan_wireshark_wep_keys(GList* key_ls)
595 GList* key_list = NULL;
596 char* tmp_key = NULL;
597 guint keys_in_list,i;
598 keys_cb_data_t* user_data;
599 airpcap_if_info_t* fake_info_if = NULL;
600 decryption_key_t* tmp_dk;
602 /* Retrieve the wlan preferences */
603 wlan_prefs = prefs_find_module("wlan");
605 /* Allocate a structure used to keep infos between the callbacks */
606 user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
608 keys_in_list = g_list_length(key_ls);
612 /* Fill the structure */
613 user_data->list = key_list;
614 user_data->current_index = 0;
615 user_data->number_of_keys= keys_in_list;
617 /* Retrieve the wlan preferences */
618 wlan_prefs = prefs_find_module("wlan");
620 /* Run the callback on each 802.11 preference */
621 prefs_pref_foreach(wlan_prefs, set_wep_key, (gpointer)user_data);
623 /* Signal that we've changed things, and run the 802.11 dissector's
625 wlan_prefs->prefs_changed = TRUE;
627 /* Apply changes for the specified preference */
628 prefs_apply(wlan_prefs);
631 /* free the WEP key string */
632 for(i=0;i<g_list_length(user_data->list);i++)
634 tmp_dk = (decryption_key_t*)g_list_nth(user_data->list,i)->data;
635 g_string_free(tmp_dk->key,TRUE);
636 if(tmp_dk->ssid != NULL) g_string_free(tmp_dk->ssid,TRUE);
639 /* free the (empty) list */
640 g_list_free(user_data->list);
642 /* free the user_data structure */
649 * Get an error message string for a CANT_GET_INTERFACE_LIST error from
650 * "get_airpcap_interface_list()".
653 cant_get_airpcap_if_list_error_message(const char *err_str)
655 return g_strdup_printf("Can't get list of Wireless interfaces: %s", err_str);
659 * Airpcap wrapper, used to store the current settings for the selected adapter
662 airpcap_if_store_cur_config_as_adapter_default(PAirpcapHandle ah)
664 if (!AirpcapLoaded) return FALSE;
665 return g_PAirpcapStoreCurConfigAsAdapterDefault(ah);
669 * Airpcap wrapper, used to open an airpcap adapter
672 airpcap_if_open(PCHAR name, PCHAR err)
674 if (!AirpcapLoaded) return NULL;
675 if (name == NULL) return NULL;
676 return g_PAirpcapOpen(name,err);
680 * Airpcap wrapper, used to close an airpcap adapter
683 airpcap_if_close(PAirpcapHandle handle)
685 if (!AirpcapLoaded) return;
686 g_PAirpcapClose(handle);
690 * Airpcap wrapper, used to turn on the led of an airpcap adapter
693 airpcap_if_turn_led_on(PAirpcapHandle AdapterHandle, UINT LedNumber)
695 if (!AirpcapLoaded) return FALSE;
696 return g_PAirpcapTurnLedOn(AdapterHandle,LedNumber);
700 * Airpcap wrapper, used to turn off the led of an airpcap adapter
703 airpcap_if_turn_led_off(PAirpcapHandle AdapterHandle, UINT LedNumber)
705 if (!AirpcapLoaded) return FALSE;
706 return g_PAirpcapTurnLedOff(AdapterHandle,LedNumber);
710 * Airpcap wrapper, used to get the channel of an airpcap adapter
713 airpcap_if_get_device_channel(PAirpcapHandle ah, PUINT ch)
715 if (!AirpcapLoaded) return FALSE;
716 return g_PAirpcapGetDeviceChannel(ah,ch);
720 * Airpcap wrapper, used to set the channel of an airpcap adapter
723 airpcap_if_set_device_channel(PAirpcapHandle ah, UINT ch)
725 if (!AirpcapLoaded) return FALSE;
726 return g_PAirpcapSetDeviceChannel(ah,ch);
730 * Airpcap wrapper, used to get the link type of an airpcap adapter
733 airpcap_if_get_link_type(PAirpcapHandle ah, PAirpcapLinkType lt)
735 if (!AirpcapLoaded) return FALSE;
736 return g_PAirpcapGetLinkType(ah,lt);
740 * Airpcap wrapper, used to set the link type of an airpcap adapter
743 airpcap_if_set_link_type(PAirpcapHandle ah, AirpcapLinkType lt)
745 if (!AirpcapLoaded) return FALSE;
746 return g_PAirpcapSetLinkType(ah,lt);
750 * Airpcap wrapper, used to get the fcs presence of an airpcap adapter
753 airpcap_if_get_fcs_presence(PAirpcapHandle ah, PBOOL fcs)
755 if (!AirpcapLoaded) return FALSE;
756 return g_PAirpcapGetFcsPresence(ah,fcs);
760 * Airpcap wrapper, used to set the fcs presence of an airpcap adapter
763 airpcap_if_set_fcs_presence(PAirpcapHandle ah, BOOL fcs)
765 if (!AirpcapLoaded) return FALSE;
766 return g_PAirpcapSetFcsPresence(ah,fcs);
770 * Airpcap wrapper, used to get the decryption enabling of an airpcap adapter
773 airpcap_if_get_decryption_state(PAirpcapHandle ah, PAirpcapDecryptionState PEnable)
775 if (!AirpcapLoaded) return FALSE;
776 return g_PAirpcapGetDecryptionState(ah,PEnable);
780 * Airpcap wrapper, used to set the decryption enabling of an airpcap adapter
783 airpcap_if_set_decryption_state(PAirpcapHandle ah, AirpcapDecryptionState Enable)
785 if (!AirpcapLoaded) return FALSE;
786 return g_PAirpcapSetDecryptionState(ah,Enable);
790 * Airpcap wrapper, used to get the decryption enabling of an airpcap driver
793 airpcap_if_get_driver_decryption_state(PAirpcapHandle ah, PAirpcapDecryptionState PEnable)
795 if (!AirpcapLoaded || (g_PAirpcapGetDriverDecryptionState==NULL)) return FALSE;
796 return g_PAirpcapGetDriverDecryptionState(ah,PEnable);
800 * Airpcap wrapper, used to set the decryption enabling of an airpcap driver
803 airpcap_if_set_driver_decryption_state(PAirpcapHandle ah, AirpcapDecryptionState Enable)
805 if (!AirpcapLoaded || (g_PAirpcapSetDriverDecryptionState==NULL)) return FALSE;
806 return g_PAirpcapSetDriverDecryptionState(ah,Enable);
810 * Airpcap wrapper, used to get the fcs validation of an airpcap adapter
813 airpcap_if_get_fcs_validation(PAirpcapHandle ah, PAirpcapValidationType val)
815 if (!AirpcapLoaded) return FALSE;
816 return g_PAirpcapGetFcsValidation(ah,val);
820 * Airpcap wrapper, used to set the fcs validation of an airpcap adapter
823 airpcap_if_set_fcs_validation(PAirpcapHandle ah, AirpcapValidationType val)
825 if (!AirpcapLoaded) return FALSE;
826 return g_PAirpcapSetFcsValidation(ah,val);
830 * Airpcap wrapper, used to save the settings for the selected_if
833 airpcap_if_set_device_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection)
835 if (!AirpcapLoaded) return FALSE;
836 return g_PAirpcapSetDeviceKeys(AdapterHandle,KeysCollection);
840 * Airpcap wrapper, used to save the settings for the selected_if
843 airpcap_if_get_device_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection, PUINT PKeysCollectionSize)
845 if (!AirpcapLoaded) return FALSE;
846 return g_PAirpcapGetDeviceKeys(AdapterHandle,KeysCollection,PKeysCollectionSize);
850 * Airpcap wrapper, used to save the driver's set of keys
853 airpcap_if_set_driver_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection)
855 if (!AirpcapLoaded || (g_PAirpcapSetDriverKeys==NULL)) return FALSE;
856 return g_PAirpcapSetDriverKeys(AdapterHandle,KeysCollection);
860 * Airpcap wrapper, used to load the driver's set of keys
863 airpcap_if_get_driver_keys(PAirpcapHandle AdapterHandle, PAirpcapKeysCollection KeysCollection, PUINT PKeysCollectionSize)
865 if (!AirpcapLoaded || (g_PAirpcapGetDriverKeys==NULL)) return FALSE;
866 return g_PAirpcapGetDriverKeys(AdapterHandle,KeysCollection,PKeysCollectionSize);
870 * This function will create a new airpcap_if_info_t using a name and a description
873 airpcap_if_info_new(char *name, char *description)
876 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
878 airpcap_if_info_t *if_info = NULL;
880 /* Probably I have to switch on the leds!!! */
881 ad = airpcap_if_open(name, ebuf);
884 if_info = g_malloc(sizeof (airpcap_if_info_t));
885 if_info->name = g_strdup(name);
886 if (description == NULL)
887 if_info->description = NULL;
889 if_info->description = g_strdup(description);
890 if_info->ip_addr = NULL;
891 if_info->loopback = FALSE;
892 airpcap_if_get_fcs_validation(ad,&(if_info->CrcValidationOn));
893 airpcap_if_get_fcs_presence(ad,&(if_info->IsFcsPresent));
894 airpcap_if_get_link_type(ad,&(if_info->linkType));
895 airpcap_if_get_device_channel(ad,&(if_info->channel));
896 airpcap_if_turn_led_on(ad, 0);
897 airpcap_if_get_decryption_state(ad, &(if_info->DecryptionOn));
899 if_info->blinking = FALSE;
900 if_info->saved = TRUE; /* NO NEED TO BE SAVED */
902 /* get the keys, if everything is ok, close the adapter */
903 if(airpcap_if_load_keys(ad,if_info))
904 airpcap_if_close(ad);
910 * This function will create a new fake drivers' interface, to load global keys...
913 airpcap_driver_fake_if_info_new()
916 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
918 airpcap_if_info_t *if_info = NULL;
919 airpcap_if_info_t *fake_if_info = NULL;
921 /* Maybe for some reason no airpcap adapter is found */
922 if(airpcap_if_list == NULL)
926 * Retrieve the first AirPcap adapter available. If no interface is found,
927 * it is not possible to retrieve the driver's settings, so return NULL.
929 if_info = g_list_nth_data(airpcap_if_list,0);
933 /* Open the 'fake' adapter */
934 ad = airpcap_if_open(if_info->name, ebuf);
937 fake_if_info = g_malloc(sizeof (airpcap_if_info_t));
938 fake_if_info->name = g_strdup(if_info->name);
939 fake_if_info->description = g_strdup(if_info->description);
940 fake_if_info->loopback = FALSE;
941 fake_if_info->ip_addr = NULL;
942 airpcap_if_get_driver_decryption_state(ad, &(fake_if_info->DecryptionOn));
943 airpcap_if_get_fcs_validation(ad,&(fake_if_info->CrcValidationOn));
944 airpcap_if_get_fcs_presence(ad,&(fake_if_info->IsFcsPresent));
945 airpcap_if_get_link_type(ad,&(fake_if_info->linkType));
946 airpcap_if_get_device_channel(ad,&(fake_if_info->channel));
947 airpcap_if_turn_led_on(ad, 0);
948 fake_if_info->led = TRUE;
949 fake_if_info->blinking = FALSE;
950 fake_if_info->saved = TRUE; /* NO NEED TO BE SAVED */
952 /* get the keys, if everything is ok, close the adapter */
953 if(airpcap_if_load_driver_keys(ad,fake_if_info))
954 airpcap_if_close(ad);
961 * USED FOR DEBUG ONLY... PRINTS AN AirPcap ADAPTER STRUCTURE in a fancy way.
964 airpcap_if_info_print(airpcap_if_info_t* if_info)
968 g_print("\nWARNING : AirPcap Interface pointer is NULL!\n");
972 g_print("\n----------------- AirPcap Interface \n");
973 g_print(" NAME: %s\n",if_info->name);
974 g_print(" DESCRIPTION: %s\n",if_info->description);
975 g_print(" BLINKING: %s\n",if_info->blinking ? "TRUE" : "FALSE");
976 g_print(" CHANNEL: %2u\n",if_info->channel);
977 g_print(" CRCVALIDATION: %s\n",if_info->CrcValidationOn ? "ON" : "OFF");
978 g_print(" DECRYPTION: %s\n",if_info->DecryptionOn ? "ON" : "OFF");
979 g_print(" IP ADDR: %s\n",if_info->ip_addr!=NULL ? "NOT NULL" : "NULL");
980 g_print(" FCSPRESENT: %s\n",if_info->IsFcsPresent ? "TRUE" : "FALSE");
981 g_print(" KEYSCOLLECTION: %s\n",if_info->keysCollection!=NULL ? "NOT NULL" : "NULL");
982 g_print("KEYSCOLLECTIONSIZE: %u\n",if_info->keysCollectionSize);
983 g_print(" LED: %s\n",if_info->led ? "ON" : "OFF");
984 g_print(" LINKTYPE: %d\n",if_info->linkType);
985 g_print(" LOOPBACK: %s\n",if_info->loopback ? "YES" : "NO");
986 g_print(" (GTK) TAG: %d\n",if_info->tag);
991 * Function used to load the WEP keys for a selected interface
994 airpcap_if_load_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
996 if(!if_info) return FALSE;
998 if_info->keysCollectionSize = 0;
999 if_info->keysCollection = NULL;
1001 if(!airpcap_if_get_device_keys(ad, NULL, &(if_info->keysCollectionSize)))
1003 if(if_info->keysCollectionSize == 0)
1005 if_info->keysCollection = NULL;
1006 airpcap_if_close(ad);
1010 if_info->keysCollection = (PAirpcapKeysCollection)g_malloc(if_info->keysCollectionSize);
1011 if(!if_info->keysCollection)
1013 if_info->keysCollectionSize = 0;
1014 if_info->keysCollection = NULL;
1015 airpcap_if_close(ad);
1019 airpcap_if_get_device_keys(ad, if_info->keysCollection, &(if_info->keysCollectionSize));
1023 airpcap_if_close(ad);
1028 * Function used to load the WEP keys for a selected interface
1031 airpcap_if_load_driver_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
1033 if_info->keysCollectionSize = 0;
1034 if_info->keysCollection = NULL;
1036 if(!airpcap_if_get_driver_keys(ad, NULL, &(if_info->keysCollectionSize)))
1038 if(if_info->keysCollectionSize == 0)
1040 if_info->keysCollection = NULL;
1041 airpcap_if_close(ad);
1045 if_info->keysCollection = (PAirpcapKeysCollection)g_malloc(if_info->keysCollectionSize);
1046 if(!if_info->keysCollection)
1048 if_info->keysCollectionSize = 0;
1049 if_info->keysCollection = NULL;
1050 airpcap_if_close(ad);
1054 airpcap_if_get_driver_keys(ad, if_info->keysCollection, &(if_info->keysCollectionSize));
1058 airpcap_if_close(ad);
1063 * Function used to save the WEP keys for a selected interface
1066 airpcap_if_save_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
1068 if(!if_info || !AirpcapLoaded) return;
1070 if(if_info->keysCollection != NULL)
1071 g_PAirpcapSetDeviceKeys(ad,if_info->keysCollection);
1075 * Function used to save the WEP keys for a selected interface
1078 airpcap_if_save_driver_keys(PAirpcapHandle ad, airpcap_if_info_t *if_info)
1080 if(if_info->keysCollection != NULL)
1081 airpcap_if_set_driver_keys(ad,if_info->keysCollection);
1085 * Callback used to free an instance of airpcap_if_info_t
1088 free_airpcap_if_cb(gpointer data, gpointer user_data _U_)
1090 airpcap_if_info_t *if_info = data;
1092 if (if_info->name != NULL)
1093 g_free(if_info->name);
1095 if (if_info->description != NULL)
1096 g_free(if_info->description);
1098 /* XXX - FREE THE WEP KEY LIST HERE!!!*/
1099 if(if_info->keysCollection != NULL)
1101 g_free(if_info->keysCollection);
1102 if_info->keysCollection = NULL;
1105 if(if_info->ip_addr != NULL)
1106 g_slist_free(if_info->ip_addr);
1113 * Function used to free the airpcap interface list
1116 free_airpcap_interface_list(GList *if_list)
1118 g_list_foreach(if_list, free_airpcap_if_cb, NULL);
1119 g_list_free(if_list);
1124 * This function will use the airpcap.dll to find all the airpcap devices.
1125 * Will return null if no device is found.
1128 get_airpcap_interface_list(int *err, char *err_str)
1131 airpcap_if_info_t *if_info;
1133 AirpcapDeviceDescription *devsList, *adListEntry;
1136 *err = NO_AIRPCAP_INTERFACES_FOUND;
1138 if(!AirpcapLoaded || !g_PAirpcapGetDeviceList(&devsList, err_str))
1140 /* No interfaces, return il = NULL; */
1145 * Count the adapters
1147 adListEntry = devsList;
1152 adListEntry = adListEntry->next;
1157 /* No interfaces, return il= NULL */
1158 g_PAirpcapFreeDeviceList(devsList);
1163 * Insert the adapters in our list
1165 adListEntry = devsList;
1166 for(i = 0; i < n_adapts; i++)
1168 if_info = airpcap_if_info_new(adListEntry->Name, adListEntry->Description);
1169 il = g_list_append(il, if_info);
1171 adListEntry = adListEntry->next;
1174 g_PAirpcapFreeDeviceList(devsList);
1180 * Used to retrieve the name of the interface given the description
1181 * (the name is used in AirpcapOpen, the description is put in the combo box)
1183 gchar* get_airpcap_name_from_description(GList* if_list, gchar* description)
1187 airpcap_if_info_t* if_info;
1192 while( ifn < g_list_length(if_list) )
1194 curr = g_list_nth(if_list, ifn);
1198 if_info = curr->data;
1200 if ( g_ascii_strcasecmp(if_info->description,description) == 0)
1202 return if_info->name;
1211 * Used to retrieve the interface given the name
1212 * (the name is used in AirpcapOpen)
1214 airpcap_if_info_t* get_airpcap_if_by_name(GList* if_list, const gchar* name)
1218 airpcap_if_info_t* if_info;
1223 while( ifn < g_list_length(if_list) )
1225 curr = g_list_nth(if_list, ifn);
1229 if_info = curr->data;
1231 if ( g_ascii_strcasecmp(if_info->name,name) == 0)
1242 * Returns the ASCII string of a key given the key bytes
1245 airpcap_get_key_string(AirpcapKey key)
1254 if(key.KeyType == AIRPDCAP_KEY_TYPE_WEP)
1258 /* Allocate the string used to store the ASCII representation of the WEP key */
1259 dst = (gchar*)g_malloc(sizeof(gchar)*WEP_KEY_MAX_CHAR_SIZE + 1);
1260 /* Make sure that the first char is '\0' in order to make g_strlcat() work */
1263 for(j = 0; j < key.KeyLen; j++)
1265 src = g_strdup_printf("%.2x\0", key.KeyData[j]);
1267 * XXX - use g_strconcat() or GStrings instead ???
1269 l = g_strlcat(dst,src,WEP_KEY_MAX_CHAR_SIZE+1);
1274 else if(key.KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
1276 /* XXX - Add code here */
1278 else if(key.KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
1280 /* XXX - Add code here */
1284 /* XXX - Add code here */
1291 * Clear keys and decryption status for the specified interface
1294 airpcap_if_clear_decryption_settings(airpcap_if_info_t* info_if)
1298 if(info_if->keysCollection != NULL)
1300 g_free(info_if->keysCollection);
1301 info_if->keysCollection = NULL;
1304 info_if->keysCollectionSize = 0;
1306 info_if->DecryptionOn = FALSE;
1307 info_if->saved = FALSE;
1312 * Used to retrieve the airpcap_if_info_t of the selected interface given the
1313 * description (that is the entry of the combo box).
1315 gpointer get_airpcap_if_from_description(GList* if_list, const gchar* description)
1319 airpcap_if_info_t* if_info;
1324 while( ifn < g_list_length(if_list) )
1326 curr = g_list_nth(if_list, ifn);
1330 if_info = curr->data;
1332 if ( g_ascii_strcasecmp(if_info->description,description) == 0)
1343 * Used to retrieve the two chars string from interface
1346 airpcap_get_if_string_number(airpcap_if_info_t* if_info)
1352 a = sscanf(if_info->name,AIRPCAP_DEVICE_NUMBER_EXTRACT_STRING,&n);
1354 /* If sscanf() returned 1, it means that has read a number, so interface is not "Any"
1355 * Otherwise, check if it is the "Any" adapter...
1359 if(g_strcasecmp(if_info->name,AIRPCAP_DEVICE_ANY_EXTRACT_STRING)!=0)
1360 number = g_strdup_printf("??");
1362 number = g_strdup_printf(AIRPCAP_CHANNEL_ANY_NAME);
1366 number = g_strdup_printf("%.2u\0",n);
1373 * Used to retrieve the two chars string from interface
1376 airpcap_get_if_string_number_from_description(gchar* description)
1381 number = (gchar*)g_malloc(sizeof(gchar)*3);
1383 pointer = g_strrstr(description,"#\0");
1385 number[0] = *(pointer+1);
1386 number[1] = *(pointer+2);
1393 * Returns the default airpcap interface of a list, NULL if list is empty
1396 airpcap_get_default_if(GList* airpcap_if_list)
1399 GList* popdown_if_list = NULL;
1403 airpcap_if_info_t* if_info = NULL;
1405 if(prefs.capture_device != NULL)
1407 s = g_strdup(get_if_name(prefs.capture_device));
1408 if_info = get_airpcap_if_by_name(airpcap_if_list,g_strdup(get_if_name(prefs.capture_device)));
1415 * Load the configuration for the specified interface
1418 airpcap_load_selected_if_configuration(airpcap_if_info_t* if_info)
1420 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
1425 ad = airpcap_if_open(get_airpcap_name_from_description(airpcap_if_list, if_info->description), ebuf);
1429 /* Stop blinking (if it was blinkig!)*/
1430 if(if_info->blinking)
1432 /* Turn on the light (if it was off) */
1433 if(!(if_info->led)) airpcap_if_turn_led_on(ad, 0);
1436 /* Apply settings... */
1437 airpcap_if_get_device_channel(ad,&(if_info->channel));
1438 airpcap_if_get_fcs_validation(ad,&(if_info->CrcValidationOn));
1439 airpcap_if_get_fcs_presence(ad,&(if_info->IsFcsPresent));
1440 airpcap_if_get_link_type(ad,&(if_info->linkType));
1441 airpcap_if_get_decryption_state(ad, &(if_info->DecryptionOn));
1442 /* get the keys, if everything is ok, close the adapter */
1443 if(airpcap_if_load_keys(ad,if_info))
1444 airpcap_if_close(ad);
1446 if_info->saved = TRUE;
1450 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",if_info->description);
1456 * Save the configuration for the specified interface
1459 airpcap_save_selected_if_configuration(airpcap_if_info_t* if_info)
1461 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
1466 ad = airpcap_if_open(get_airpcap_name_from_description(airpcap_if_list, if_info->description), ebuf);
1470 /* Stop blinking (if it was blinkig!)*/
1471 if(if_info->blinking)
1473 /* Turn on the light (if it was off) */
1474 if(!(if_info->led)) airpcap_if_turn_led_on(ad, 0);
1477 /* Apply settings... */
1478 airpcap_if_set_device_channel(ad,if_info->channel);
1479 airpcap_if_set_fcs_validation(ad,if_info->CrcValidationOn);
1480 airpcap_if_set_fcs_presence(ad,if_info->IsFcsPresent);
1481 airpcap_if_set_link_type(ad,if_info->linkType);
1482 airpcap_if_set_decryption_state(ad, if_info->DecryptionOn);
1483 airpcap_if_save_keys(ad,if_info);
1485 /* ... and save them */
1486 if(!airpcap_if_store_cur_config_as_adapter_default(ad))
1488 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.");
1489 if_info->saved = FALSE;
1490 airpcap_if_close(ad);
1494 if_info->saved = TRUE;
1495 airpcap_if_close(ad);
1499 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",if_info->description);
1505 * Save the configuration for the specified interface
1508 airpcap_save_driver_if_configuration(airpcap_if_info_t* fake_if_info)
1510 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
1513 if(fake_if_info != NULL)
1515 ad = airpcap_if_open(fake_if_info->name, ebuf);
1519 /* Apply decryption settings... */
1520 airpcap_if_set_driver_decryption_state(ad, fake_if_info->DecryptionOn);
1521 airpcap_if_save_driver_keys(ad,fake_if_info);
1522 airpcap_if_close(ad);
1526 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, " Error in opening adapter for %s",fake_if_info->description);
1534 * DECRYPTION KEYS FUNCTIONS
1537 * This function is used for DEBUG POURPOSES ONLY!!!
1540 print_key_list(GList* key_list)
1543 decryption_key_t* tmp;
1545 if(key_list == NULL)
1547 g_print("\n\n******* KEY LIST NULL *******\n\n");
1551 n = g_list_length(key_list);
1553 g_print("\n\n********* KEY LIST **********\n\n");
1555 g_print("NUMBER OF KEYS IN LIST : %d\n\n",n);
1557 for(i =0; i < n; i++)
1559 g_print("[%d] :\n",i+1);
1560 tmp = (decryption_key_t*)(g_list_nth_data(key_list,i));
1561 g_print("KEY : %s\n",tmp->key->str);
1563 g_print("BITS: %d\n",tmp->bits);
1565 if(tmp->type == AIRPDCAP_KEY_TYPE_WEP)
1566 g_print("TYPE: %s\n",AIRPCAP_WEP_KEY_STRING);
1567 else if(tmp->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
1568 g_print("TYPE: %s\n",AIRPCAP_WPA_PWD_KEY_STRING);
1569 else if(tmp->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
1570 g_print("TYPE: %s\n",AIRPCAP_WPA_BIN_KEY_STRING);
1572 g_print("TYPE: %s\n","???");
1574 g_print("SSID: %s\n",(tmp->ssid != NULL) ? tmp->ssid->str : "---");
1578 g_print("\n*****************************\n\n");
1582 * Retrieves a GList of decryption_key_t structures containing infos about the
1583 * keys for the given adapter... returns NULL if no keys are found.
1586 get_airpcap_device_keys(airpcap_if_info_t* info_if)
1589 char* tmp_key = NULL;
1590 guint i,keys_in_list = 0;
1593 decryption_key_t *new_key = NULL;
1594 GList *key_list = NULL;
1596 /* Number of keys in key list */
1597 if(info_if->keysCollectionSize != 0)
1598 keys_in_list = (guint)(info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
1602 for(i=0; i<keys_in_list; i++)
1604 /* Different things to do depending on the key type */
1605 if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
1607 /* allocate memory for the new key item */
1608 new_key = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1610 /* fill the fields */
1612 tmp_key = airpcap_get_key_string(info_if->keysCollection->Keys[i]);
1613 new_key->key = g_string_new(tmp_key);
1617 new_key->bits = new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an exadecimal number) */
1619 /* SSID not used in WEP keys */
1620 new_key->ssid = NULL;
1622 /* TYPE (WEP in this case) */
1623 new_key->type = info_if->keysCollection->Keys[i].KeyType;
1625 /* Append the new element in the list */
1626 key_list = g_list_append(key_list,(gpointer)new_key);
1628 else if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
1630 /* XXX - Not supported yet */
1632 else if(info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
1634 /* XXX - Not supported yet */
1642 * Retrieves a GList of decryption_key_t structures containing infos about the
1643 * keys for the global AirPcap driver... returns NULL if no keys are found.
1646 get_airpcap_driver_keys()
1649 char* tmp_key = NULL;
1650 guint i,keys_in_list = 0;
1653 decryption_key_t *new_key = NULL;
1654 GList *key_list = NULL;
1657 * To read the drivers general settings we need to create and use one airpcap adapter...
1658 * The only way to do that is to instantiate a fake adapter, and then close it and delete it.
1660 airpcap_if_info_t* fake_info_if = NULL;
1662 /* Create the fake_info_if from the first adapter of the list */
1663 fake_info_if = airpcap_driver_fake_if_info_new();
1665 if(fake_info_if == NULL)
1668 /* Number of keys in key list */
1669 if(fake_info_if->keysCollectionSize != 0)
1670 keys_in_list = (guint)(fake_info_if->keysCollectionSize - sizeof(AirpcapKeysCollection))/sizeof(AirpcapKey);
1674 for(i=0; i<keys_in_list; i++)
1676 /* Different things to do depending on the key type */
1677 if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WEP)
1679 /* allocate memory for the new key item */
1680 new_key = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1682 /* fill the fields */
1684 tmp_key = airpcap_get_key_string(fake_info_if->keysCollection->Keys[i]);
1685 new_key->key = g_string_new(tmp_key);
1686 if(tmp_key != NULL) g_free(tmp_key);
1689 new_key->bits = new_key->key->len *4; /* every char is 4 bits in WEP keys (it is an exadecimal number) */
1691 /* SSID not used in WEP keys */
1692 new_key->ssid = NULL;
1694 /* TYPE (WEP in this case) */
1695 new_key->type = fake_info_if->keysCollection->Keys[i].KeyType;
1697 /* Append the new element in the list */
1698 key_list = g_list_append(key_list,(gpointer)new_key);
1700 else if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PWD)
1702 /* XXX - Not supported yet */
1704 else if(fake_info_if->keysCollection->Keys[i].KeyType == AIRPDCAP_KEY_TYPE_WPA_PMK)
1706 /* XXX - Not supported yet */
1710 airpcap_if_info_free(fake_info_if);
1716 * Returns the list of the decryption keys specified for wireshark, NULL if
1720 get_wireshark_keys()
1722 keys_cb_data_t* wep_user_data = NULL;
1726 GList* final_list = NULL;
1727 GList* wep_final_list = NULL;
1729 /* Retrieve the wlan preferences */
1730 wlan_prefs = prefs_find_module("wlan");
1732 /* Allocate a structure used to keep infos between the callbacks */
1733 wep_user_data = (keys_cb_data_t*)g_malloc(sizeof(keys_cb_data_t));
1735 /* Fill the structure */
1736 wep_user_data->list = NULL;
1737 wep_user_data->current_index = 0;
1738 wep_user_data->number_of_keys= 0; /* Still unknown */
1740 /* Run the callback on each 802.11 preference */
1741 /* XXX - Right now, only WEP keys will be loaded */
1742 prefs_pref_foreach(wlan_prefs, get_wep_key, (gpointer)wep_user_data);
1744 /* Copy the list field in the user data structure pointer into the final_list */
1745 if(wep_user_data != NULL) wep_final_list = wep_user_data->list;
1747 /* XXX - Merge the three lists!!!!! */
1748 final_list = wep_final_list;
1750 /* free the wep_user_data structure */
1751 g_free(wep_user_data);
1757 * Merges two lists of keys and return a newly created GList. If a key is
1758 * found multiple times, it will just appear once!
1759 * list1 and list 2 pointer will have to be freed manually if needed!!!
1760 * If the total number of keys exceeeds the maximum number allowed,
1761 * exceeding keys will be discarded...
1764 merge_key_list(GList* list1, GList* list2)
1768 decryption_key_t *dk1=NULL,
1772 GList* merged_list = NULL;
1774 if( (list1 == NULL) && (list2 == NULL) )
1780 n2 = g_list_length(list2);
1784 new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1785 dk2 = (decryption_key_t *)g_list_nth_data(list2,i);
1787 new_dk->bits = dk2->bits;
1788 new_dk->type = dk2->type;
1789 new_dk->key = g_string_new(dk2->key->str);
1790 if(dk2->ssid != NULL)
1791 new_dk->ssid = g_string_new(dk2->ssid->str);
1793 new_dk->ssid = NULL;
1795 /* Check the total length of the merged list */
1796 if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
1797 merged_list = g_list_append(merged_list,(gpointer)new_dk);
1800 else if(list2 == NULL)
1802 n1 = g_list_length(list1);
1807 new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1808 dk1 = (decryption_key_t*)g_list_nth_data(list1,i);
1810 new_dk->bits = dk1->bits;
1811 new_dk->type = dk1->type;
1812 new_dk->key = g_string_new(dk1->key->str);
1813 if(dk1->ssid != NULL)
1814 new_dk->ssid = g_string_new(dk1->ssid->str);
1816 new_dk->ssid = NULL;
1818 /* Check the total length of the merged list */
1819 if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
1820 merged_list = g_list_append(merged_list,(gpointer)new_dk);
1825 n1 = g_list_length(list1);
1826 n2 = g_list_length(list2);
1828 /* Copy the whole list1 into merged_list */
1831 new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1832 dk1 = (decryption_key_t *)g_list_nth_data(list1,i);
1834 new_dk->bits = dk1->bits;
1835 new_dk->type = dk1->type;
1836 new_dk->key = g_string_new(dk1->key->str);
1838 if(dk1->ssid != NULL)
1839 new_dk->ssid = g_string_new(dk1->ssid->str);
1841 new_dk->ssid = NULL;
1843 /* Check the total length of the merged list */
1844 if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
1845 merged_list = g_list_append(merged_list,(gpointer)new_dk);
1848 /* Look for keys that are present in list2 but aren't in list1 yet...
1849 * Add them to merged_list
1853 dk2 = (decryption_key_t *)g_list_nth_data(list2,i);
1855 if(!key_is_in_list(dk2,merged_list))
1857 new_dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
1859 new_dk->bits = dk2->bits;
1860 new_dk->type = dk2->type;
1861 new_dk->key = g_string_new(dk2->key->str);
1862 if(dk2->ssid != NULL)
1863 new_dk->ssid = g_string_new(dk2->ssid->str);
1865 new_dk->ssid = NULL;
1867 /* Check the total length of the merged list */
1868 if(g_list_length(merged_list) < MAX_ENCRYPTION_KEYS)
1869 merged_list = g_list_append(merged_list,(gpointer)new_dk);
1878 * Use this function to free a key list.
1881 free_key_list(GList *list)
1884 decryption_key_t *curr_key;
1889 n = g_list_length(list);
1891 for(i = 0; i < n; i++)
1893 curr_key = (decryption_key_t*)g_list_nth_data(list,i);
1895 /* Free all the strings */
1896 if(curr_key->key != NULL)
1897 g_string_free(curr_key->key,TRUE);
1899 if(curr_key->ssid != NULL)
1900 g_string_free(curr_key->ssid,TRUE);
1902 /* free the decryption_key_t structure*/
1915 * If the given key is contained in the list, returns TRUE.
1916 * Returns FALSE otherwise.
1919 key_is_in_list(decryption_key_t *dk,GList *list)
1922 decryption_key_t* curr_key = NULL;
1923 gboolean found = FALSE;
1925 if( (list == NULL) || (dk == NULL) )
1928 n = g_list_length(list);
1933 for(i = 0; i < n; i++)
1935 curr_key = (decryption_key_t*)g_list_nth_data(list,i);
1936 if(keys_are_equals(dk,curr_key))
1944 * Returns TRUE if keys are equals, FALSE otherwise
1947 keys_are_equals(decryption_key_t *k1,decryption_key_t *k2)
1950 if((k1==NULL) || (k2==NULL))
1953 /* XXX - Remove this check when we will have the WPA/WPA2 decryption in the Driver! */
1954 //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) )
1957 if( g_string_equal(k1->key,k2->key) &&
1958 (k1->bits == k2->bits) && /* If the previous is TRUE, this must be TRUE as well */
1959 k1->type == k2->type)
1961 /* Check the ssid... if the key type is WEP, the two fields should be NULL */
1962 if((k1->ssid == NULL) && (k2->ssid == NULL))
1965 /* Check if one of them is null and one is not... */
1966 if((k1->ssid == NULL) || (k2->ssid == NULL))
1969 /* If they are not null, they must share the same ssid */
1970 return g_string_equal(k1->ssid,k2->ssid);
1973 /* Some field is not equal ... */
1978 * Tests if two collection of keys are equal or not, to be considered equals, they have to
1979 * contain the same keys in the SAME ORDER! (If both lists are NULL, which means empty will
1983 key_lists_are_equal(GList* list1, GList* list2)
1987 guint wep_n1=0,wep_n2=0;
1988 GList *wep_list1=NULL;
1989 GList *wep_list2=NULL;
1992 decryption_key_t *dk1=NULL,*dk2=NULL;
1994 n1 = g_list_length(list1);
1995 n2 = g_list_length(list2);
1998 * XXX - START : Retrieve the aublists of WEP keys!!! This is needed only 'till Driver WPA decryption
1999 * is not implemented.
2003 dk1=(decryption_key_t*)g_list_nth_data(list1,i);
2004 if(dk1->type == AIRPDCAP_KEY_TYPE_WEP)
2006 wep_list1 = g_list_append(wep_list1,(gpointer)dk1);
2012 dk2=(decryption_key_t*)g_list_nth_data(list2,i);
2013 if(dk2->type == AIRPDCAP_KEY_TYPE_WEP)
2015 wep_list2 = g_list_append(wep_list2,(gpointer)dk2);
2021 * XXX - END : Remove from START to END when the WPA/WPA2 decryption will be implemented in
2026 * Commented, because in the new AirPcap version all the keys will be saved
2027 * into the driver, and all the keys for every specific adapter will be
2028 * removed. This means that this check will always fail... and the user will
2029 * always be asked what to do... and it doesn't make much sense.
2031 /* if(n1 != n2) return FALSE; */
2032 if(wep_n1 != wep_n2) return FALSE;
2039 dk1=(decryption_key_t*)g_list_nth_data(list1,i);
2040 dk2=(decryption_key_t*)g_list_nth_data(list2,i);
2042 if(!g_string_equal(dk1->key,dk2->key)) return FALSE;
2046 dk2=(decryption_key_t*)g_list_nth_data(wep_list2,i);
2047 if(!key_is_in_list(dk2,wep_list1)) return FALSE;
2054 test_if_on(pref_t *pref, gpointer ud _U_)
2059 /* Retrieve user data info */
2060 is_on = (gboolean*)ud;
2063 if (g_strncasecmp(pref->name, "enable_decryption", 17) == 0 && pref->type == PREF_BOOL)
2065 number = *pref->varp.boolp;
2067 if(number) *is_on = TRUE;
2068 else *is_on = FALSE;
2076 * Returns TRUE if the Wireshark decryption is active, false otherwise
2079 wireshark_decryption_on()
2083 /* Retrieve the wlan preferences */
2084 wlan_prefs = prefs_find_module("wlan");
2086 /* Run the callback on each 802.11 preference */
2087 prefs_pref_foreach(wlan_prefs, test_if_on, (gpointer)&is_on);
2093 * Returns TRUE if the AirPcap decryption for the current adapter is active, false otherwise
2096 airpcap_decryption_on()
2098 gboolean is_on = FALSE;
2100 airpcap_if_info_t* fake_if_info = NULL;
2102 fake_if_info = airpcap_driver_fake_if_info_new();
2104 if(fake_if_info != NULL)
2106 if(fake_if_info->DecryptionOn == AIRPCAP_DECRYPTION_ON)
2108 else if(fake_if_info->DecryptionOn == AIRPCAP_DECRYPTION_OFF)
2112 airpcap_if_info_free(fake_if_info);
2118 * Free an instance of airpcap_if_info_t
2121 airpcap_if_info_free(airpcap_if_info_t *if_info)
2125 if (if_info->name != NULL)
2126 g_free(if_info->name);
2128 if (if_info->description != NULL)
2129 g_free(if_info->description);
2131 if(if_info->keysCollection != NULL)
2133 g_free(if_info->keysCollection);
2134 if_info->keysCollection = NULL;
2137 if(if_info->ip_addr != NULL)
2139 g_slist_free(if_info->ip_addr);
2140 if_info->ip_addr = NULL;
2152 set_on_off(pref_t *pref, gpointer ud _U_)
2157 /* Retrieve user data info */
2158 is_on = (gboolean*)ud;
2160 if (g_strncasecmp(pref->name, "enable_decryption", 17) == 0 && pref->type == PREF_BOOL)
2162 number = *pref->varp.boolp;
2164 g_free((void *)*pref->varp.boolp);
2166 *pref->varp.boolp = TRUE;
2168 *pref->varp.boolp = FALSE;
2176 * Enables decryption for Wireshark if on_off is TRUE, disables it otherwise.
2179 set_wireshark_decryption(gboolean on_off)
2185 /* Retrieve the wlan preferences */
2186 wlan_prefs = prefs_find_module("wlan");
2188 /* Run the callback on each 802.11 preference */
2189 prefs_pref_foreach(wlan_prefs, set_on_off, (gpointer)&is_on);
2192 * Signal that we've changed things, and run the 802.11 dissector's
2195 wlan_prefs->prefs_changed = TRUE;
2197 prefs_apply(wlan_prefs);
2201 * Enables decryption for all the adapters if on_off is TRUE, disables it otherwise.
2204 set_airpcap_decryption(gboolean on_off)
2206 /* We need to directly access the .dll functions here... */
2207 gchar ebuf[AIRPCAP_ERRBUF_SIZE];
2208 PAirpcapHandle ad,ad_driver;
2210 gboolean success = TRUE;
2214 airpcap_if_info_t* curr_if = NULL;
2215 airpcap_if_info_t* fake_if_info = NULL;
2217 fake_if_info = airpcap_driver_fake_if_info_new();
2219 if(fake_if_info == NULL)
2220 /* We apparently don't have any adapters installed.
2221 * This isn't a failure, so return TRUE
2225 /* Set the driver decryption */
2226 ad_driver = airpcap_if_open(fake_if_info->name, ebuf);
2230 airpcap_if_set_driver_decryption_state(ad_driver,AIRPCAP_DECRYPTION_ON);
2232 airpcap_if_set_driver_decryption_state(ad_driver,AIRPCAP_DECRYPTION_OFF);
2234 airpcap_if_close(ad_driver);
2237 airpcap_if_info_free(fake_if_info);
2239 n = g_list_length(airpcap_if_list);
2241 /* Set to FALSE the decryption for all the adapters */
2242 /* Apply this change to all the adapters !!! */
2243 for(i = 0; i < n; i++)
2245 curr_if = (airpcap_if_info_t*)g_list_nth_data(airpcap_if_list,i);
2247 if( curr_if != NULL )
2249 ad = airpcap_if_open(get_airpcap_name_from_description(airpcap_if_list,curr_if->description), ebuf);
2252 curr_if->DecryptionOn = (gboolean)AIRPCAP_DECRYPTION_OFF;
2253 airpcap_if_set_decryption_state(ad,curr_if->DecryptionOn);
2254 /* Save configuration for the curr_if */
2255 if(!airpcap_if_store_cur_config_as_adapter_default(ad))
2259 airpcap_if_close(ad);
2268 /* DYNAMIC LIBRARY LOADER */
2270 * Used to dynamically load the airpcap library in order link it only when
2271 * it's present on the system
2273 int load_airpcap(void)
2275 BOOL base_functions = TRUE;
2276 BOOL new_functions = TRUE;
2278 if((AirpcapLib = LoadLibrary(TEXT("airpcap.dll"))) == NULL)
2280 /* Report the error but go on */
2281 return AIRPCAP_DLL_NOT_FOUND;
2285 if((g_PAirpcapGetLastError = (AirpcapGetLastErrorHandler) GetProcAddress(AirpcapLib, "AirpcapGetLastError")) == NULL) base_functions = FALSE;
2286 if((g_PAirpcapGetDeviceList = (AirpcapGetDeviceListHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceList")) == NULL) base_functions = FALSE;
2287 if((g_PAirpcapFreeDeviceList = (AirpcapFreeDeviceListHandler) GetProcAddress(AirpcapLib, "AirpcapFreeDeviceList")) == NULL) base_functions = FALSE;
2288 if((g_PAirpcapOpen = (AirpcapOpenHandler) GetProcAddress(AirpcapLib, "AirpcapOpen")) == NULL) base_functions = FALSE;
2289 if((g_PAirpcapClose = (AirpcapCloseHandler) GetProcAddress(AirpcapLib, "AirpcapClose")) == NULL) base_functions = FALSE;
2290 if((g_PAirpcapGetLinkType = (AirpcapGetLinkTypeHandler) GetProcAddress(AirpcapLib, "AirpcapGetLinkType")) == NULL) base_functions = FALSE;
2291 if((g_PAirpcapSetLinkType = (AirpcapSetLinkTypeHandler) GetProcAddress(AirpcapLib, "AirpcapSetLinkType")) == NULL) base_functions = FALSE;
2292 if((g_PAirpcapSetKernelBuffer = (AirpcapSetKernelBufferHandler) GetProcAddress(AirpcapLib, "AirpcapSetKernelBuffer")) == NULL) base_functions = FALSE;
2293 if((g_PAirpcapSetFilter = (AirpcapSetFilterHandler) GetProcAddress(AirpcapLib, "AirpcapSetFilter")) == NULL) base_functions = FALSE;
2294 if((g_PAirpcapGetMacAddress = (AirpcapGetMacAddressHandler) GetProcAddress(AirpcapLib, "AirpcapGetMacAddress")) == NULL) base_functions = FALSE;
2295 if((g_PAirpcapSetMinToCopy = (AirpcapSetMinToCopyHandler) GetProcAddress(AirpcapLib, "AirpcapSetMinToCopy")) == NULL) base_functions = FALSE;
2296 if((g_PAirpcapGetReadEvent = (AirpcapGetReadEventHandler) GetProcAddress(AirpcapLib, "AirpcapGetReadEvent")) == NULL) base_functions = FALSE;
2297 if((g_PAirpcapRead = (AirpcapReadHandler) GetProcAddress(AirpcapLib, "AirpcapRead")) == NULL) base_functions = FALSE;
2298 if((g_PAirpcapGetStats = (AirpcapGetStatsHandler) GetProcAddress(AirpcapLib, "AirpcapGetStats")) == NULL) base_functions = FALSE;
2299 if((g_PAirpcapTurnLedOn = (AirpcapTurnLedOnHandler) GetProcAddress(AirpcapLib, "AirpcapTurnLedOn")) == NULL) base_functions = FALSE;
2300 if((g_PAirpcapTurnLedOff = (AirpcapTurnLedOffHandler) GetProcAddress(AirpcapLib, "AirpcapTurnLedOff")) == NULL) base_functions = FALSE;
2301 if((g_PAirpcapGetDeviceChannel = (AirpcapGetDeviceChannelHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceChannel")) == NULL) base_functions = FALSE;
2302 if((g_PAirpcapSetDeviceChannel = (AirpcapSetDeviceChannelHandler) GetProcAddress(AirpcapLib, "AirpcapSetDeviceChannel")) == NULL) base_functions = FALSE;
2303 if((g_PAirpcapGetFcsPresence = (AirpcapGetFcsPresenceHandler) GetProcAddress(AirpcapLib, "AirpcapGetFcsPresence")) == NULL) base_functions = FALSE;
2304 if((g_PAirpcapSetFcsPresence = (AirpcapSetFcsPresenceHandler) GetProcAddress(AirpcapLib, "AirpcapSetFcsPresence")) == NULL) base_functions = FALSE;
2305 if((g_PAirpcapGetFcsValidation = (AirpcapGetFcsValidationHandler) GetProcAddress(AirpcapLib, "AirpcapGetFcsValidation")) == NULL) base_functions = FALSE;
2306 if((g_PAirpcapSetFcsValidation = (AirpcapSetFcsValidationHandler) GetProcAddress(AirpcapLib, "AirpcapSetFcsValidation")) == NULL) base_functions = FALSE;
2307 if((g_PAirpcapGetDeviceKeys = (AirpcapGetDeviceKeysHandler) GetProcAddress(AirpcapLib, "AirpcapGetDeviceKeys")) == NULL) base_functions = FALSE;
2308 if((g_PAirpcapSetDeviceKeys = (AirpcapSetDeviceKeysHandler) GetProcAddress(AirpcapLib, "AirpcapSetDeviceKeys")) == NULL) base_functions = FALSE;
2309 if((g_PAirpcapGetDecryptionState = (AirpcapGetDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapGetDecryptionState")) == NULL) base_functions = FALSE;
2310 if((g_PAirpcapSetDecryptionState = (AirpcapSetDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapSetDecryptionState")) == NULL) base_functions = FALSE;
2311 if((g_PAirpcapStoreCurConfigAsAdapterDefault = (AirpcapStoreCurConfigAsAdapterDefaultHandler) GetProcAddress(AirpcapLib, "AirpcapStoreCurConfigAsAdapterDefault")) == NULL) base_functions = FALSE;
2312 if((g_PAirpcapGetVersion = (AirpcapGetVersionHandler) GetProcAddress(AirpcapLib, "AirpcapGetVersion")) == NULL) base_functions = FALSE;
2314 /* TEST IF WE CAN FIND AIRPCAP NEW DRIVER FEATURES */
2315 if((g_PAirpcapGetDriverDecryptionState = (AirpcapGetDriverDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapGetDriverDecryptionState")) == NULL) new_functions = FALSE;
2316 if((g_PAirpcapSetDriverDecryptionState = (AirpcapSetDriverDecryptionStateHandler) GetProcAddress(AirpcapLib, "AirpcapSetDriverDecryptionState")) == NULL) new_functions = FALSE;
2317 if((g_PAirpcapGetDriverKeys = (AirpcapGetDriverKeysHandler) GetProcAddress(AirpcapLib, "AirpcapGetDriverKeys")) == NULL) new_functions = FALSE;
2318 if((g_PAirpcapSetDriverKeys = (AirpcapSetDriverKeysHandler) GetProcAddress(AirpcapLib, "AirpcapSetDriverKeys")) == NULL) new_functions = FALSE;
2324 AirpcapLoaded = TRUE;
2325 return AIRPCAP_DLL_OK;
2329 AirpcapLoaded = TRUE;
2330 return AIRPCAP_DLL_OLD;
2335 AirpcapLoaded = FALSE;
2336 return AIRPCAP_DLL_ERROR;
2342 * Append the version of AirPcap with which we were compiled to a GString.
2345 get_compiled_airpcap_version(GString *str)
2347 g_string_append(str, "with AirPcap");
2351 * Append the version of AirPcap with which we we're running to a GString.
2354 get_runtime_airpcap_version(GString *str)
2356 guint vmaj, vmin, vrev, build;
2358 /* See if the DLL has been loaded successfully. Bail if it hasn't */
2359 if (AirpcapLoaded == FALSE) {
2360 g_string_append(str, "without AirPcap");
2364 g_PAirpcapGetVersion(&vmaj, &vmin, &vrev, &build);
2365 g_string_sprintfa(str, "with AirPcap %d.%d.%d build %d", vmaj, vmin,
2370 * Returns the decryption_key_t struct given a string describing the key.
2371 * Returns NULL if the key_string cannot be parsed.
2374 parse_key_string(gchar* input_string)
2380 GString *key_string,
2387 decryption_key_t *dk;
2389 if(input_string == NULL)
2393 * Parse the input_string. It should be in the form <key type>:<key data>[:<ssid>]
2394 * XXX - For backward compatibility, the a WEP key can be just a string of hexadecimal
2395 * characters (if WEP key is wrong, null will be returned...).
2397 tokens = g_strsplit(input_string,":",0);
2399 /* Tokens is a null termiated array of strings ... */
2400 while(tokens[n] != NULL)
2405 /* Free the array of strings */
2411 * 'n' contains the number of tokens. If the key string is correct, we should have
2412 * 2 or 3 tokens... If we have 1 token, it can be an 'old style' WEP key... check for it...
2416 /* Maybe it is an 'old style' WEP key */
2417 key = g_strdup(tokens[0]);
2419 /* Create a new string */
2420 key_string = g_string_new(key);
2422 /* Check if it is a correct WEP key */
2423 if( ((key_string->len) > WEP_KEY_MAX_CHAR_SIZE) || ((key_string->len) < WEP_KEY_MIN_CHAR_SIZE))
2425 g_string_free(key_string, TRUE);
2427 /* Free the array of strings */
2432 if((key_string->len % 2) != 0)
2434 g_string_free(key_string, TRUE);
2436 /* Free the array of strings */
2441 for(i = 0; i < key_string->len; i++)
2443 if(!g_ascii_isxdigit(key_string->str[i]))
2445 g_string_free(key_string, TRUE);
2447 /* Free the array of strings */
2453 /* Key is correct! It was probably an 'old style' WEP key */
2454 /* Create the decryption_key_t structure, fill it and return it*/
2455 dk = g_malloc(sizeof(decryption_key_t));
2457 dk->type = AIRPDCAP_KEY_TYPE_WEP;
2458 dk->key = g_string_new(key);
2459 dk->bits = dk->key->len * 4;
2462 g_string_free(key_string, TRUE);
2465 /* Free the array of strings */
2471 /* There were at least 2 tokens... copy the type value */
2472 type = g_strdup(tokens[0]);
2475 * The second token is the key (right now it doesn't matter
2476 * if it is a passphrase or an hexadecimal one)
2478 key = g_strdup(tokens[1]);
2484 /* Maybe there is a third token (an ssid, if everything else is ok) */
2487 ssid = g_strdup(tokens[2]);
2496 * Now the initial key string has been divided in two/three tokens... let's see
2497 * which kind of key it is, and if it is the correct form
2499 if(g_strcasecmp(type,STRING_KEY_TYPE_WEP) == 0) /* WEP key */
2501 /* Create a new string */
2502 key_string = g_string_new(key);
2504 /* Check if it is a correct WEP key */
2505 if( ((key_string->len) > WEP_KEY_MAX_CHAR_SIZE) || ((key_string->len) < WEP_KEY_MIN_CHAR_SIZE))
2507 g_string_free(key_string, TRUE);
2509 /* Free the array of strings */
2514 if((key_string->len % 2) != 0)
2516 g_string_free(key_string, TRUE);
2518 /* Free the array of strings */
2523 for(i = 0; i < key_string->len; i++)
2525 if(!g_ascii_isxdigit(key_string->str[i]))
2527 g_string_free(key_string, TRUE);
2529 /* Free the array of strings */
2535 dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
2537 dk->type = AIRPDCAP_KEY_TYPE_WEP;
2538 dk->key = g_string_new(key);
2539 dk->bits = dk->key->len * 4;
2542 g_string_free(key_string, TRUE);
2545 /* Free the array of strings */
2549 else if(g_strcasecmp(type,STRING_KEY_TYPE_WPA_PSK) == 0) /* WPA key */
2551 /* Create a new string */
2552 key_string = g_string_new(key);
2554 /* Two tokens means that the user should have entered a WPA-BIN key ... */
2555 if( ((key_string->len) != WPA_PSK_KEY_CHAR_SIZE))
2557 g_string_free(key_string, TRUE);
2561 /* No ssid has been created ... */
2562 /* Free the array of strings */
2567 for(i = 0; i < key_string->len; i++)
2569 if(!g_ascii_isxdigit(key_string->str[i]))
2571 g_string_free(key_string, TRUE);
2572 /* No ssid_string has been created ... */
2576 /* No ssid has been created ... */
2577 /* Free the array of strings */
2583 /* Key was correct!!! Create the new decryption_key_t ... */
2584 dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
2586 dk->type = AIRPDCAP_KEY_TYPE_WPA_PMK;
2587 dk->key = g_string_new(key);
2588 dk->bits = dk->key->len * 4;
2591 g_string_free(key_string, TRUE);
2595 /* Free the array of strings */
2599 else if(g_strcasecmp(type,STRING_KEY_TYPE_WPA_PWD) == 0) /* WPA key *//* If the number of tokens is more than three, we accept the string... if the first three tokens are correct... */
2601 /* Create a new string */
2602 key_string = g_string_new(key);
2606 /* Three (or more) tokens mean that the user entered a WPA-PWD key ... */
2607 if( ((key_string->len) > WPA_KEY_MAX_CHAR_SIZE) || ((key_string->len) < WPA_KEY_MIN_CHAR_SIZE))
2609 g_string_free(key_string, TRUE);
2615 /* Free the array of strings */
2620 if(ssid != NULL) /* more than three tokens found, means that the user specified the ssid */
2622 ssid_string = g_string_new(ssid);
2625 * XXX - Maybe we need some check on the characters? I'm not sure if only standard ASCII are ok...
2627 if( ((ssid_string->len) > WPA_SSID_MAX_CHAR_SIZE) || ((ssid_string->len) < WPA_SSID_MIN_CHAR_SIZE))
2629 g_string_free(key_string, TRUE);
2630 g_string_free(ssid_string, TRUE);
2636 /* Free the array of strings */
2642 /* Key was correct!!! Create the new decryption_key_t ... */
2643 dk = (decryption_key_t*)g_malloc(sizeof(decryption_key_t));
2645 dk->type = AIRPDCAP_KEY_TYPE_WPA_PWD;
2646 dk->key = g_string_new(key);
2647 dk->bits = 256; /* This is the lenght of the array pf bytes that will be generated using key+ssid ...*/
2649 dk->ssid = g_string_new(ssid);
2653 g_string_free(key_string, TRUE);
2654 if(ssid_string != NULL) g_string_free(ssid_string, TRUE);
2658 if(ssid != NULL) g_free(ssid);
2660 /* Free the array of strings */
2665 /* Something was wrong ... free everything */
2669 if(ssid != NULL) g_free(ssid); /* It is not always present */
2670 /* Free the array of strings */
2677 * Returns a newly allocated string representing the given decryption_key_t struct, or NULL if
2678 * something is wrong...
2681 get_key_string(decryption_key_t* dk)
2683 gchar* output_string = NULL;
2688 #ifdef HAVE_AIRPDCAP
2689 if(dk->type == AIRPDCAP_KEY_TYPE_WEP)
2691 if(dk->key == NULL) /* Should NOT happen at all... */
2694 output_string = g_strdup_printf("%s:%s",STRING_KEY_TYPE_WEP,dk->key->str);
2696 else if(dk->type == AIRPDCAP_KEY_TYPE_WPA_PWD)
2698 if(dk->key == NULL) /* Should NOT happen at all... */
2701 if(dk->ssid == NULL)
2702 output_string = g_strdup_printf("%s:%s",STRING_KEY_TYPE_WPA_PWD,dk->key->str);
2704 output_string = g_strdup_printf("%s:%s:%s",STRING_KEY_TYPE_WPA_PWD,dk->key->str,dk->ssid->str);
2706 else if(dk->type == AIRPDCAP_KEY_TYPE_WPA_PMK)
2708 if(dk->key == NULL) /* Should NOT happen at all... */
2711 output_string = g_strdup_printf("%s:%s",STRING_KEY_TYPE_WPA_PSK,dk->key->str);
2717 #else /* not HAVE_AIRPDCAP*/
2718 output_string = g_strdup(dk->key->str);
2721 return output_string;