639e59a9f9
Removed "key prefix" need within GUI so it's a little more intuitive (because that's what this bug is complaining about). Slight backwards compatibility issue with UAT (because key prefix was in previous keys), but all development (including fix for BUG 1123 that created UAT) has just been on SVN and not released. Also adjusted AirPCap (airpcap_loader.c) to account for the lack of "key prefix". Addressed some memory leaks/excess string creation. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5985 svn path=/trunk/; revision=37888
235 lines
8.2 KiB
C
235 lines
8.2 KiB
C
/* airpdcap_user.h
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*
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* $Id$
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*
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* Copyright (c) 2006 CACE Technologies, Davis (California)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _AIRPDCAP_USER_H
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#define _AIRPDCAP_USER_H
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/******************************************************************************/
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/* File includes */
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/* */
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#include "airpdcap_interop.h"
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/* */
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/* */
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/******************************************************************************/
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/******************************************************************************/
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/* Constant definitions */
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/* */
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/* Decryption key types */
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#define AIRPDCAP_KEY_TYPE_WEP 0
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#define AIRPDCAP_KEY_TYPE_WEP_40 1
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#define AIRPDCAP_KEY_TYPE_WEP_104 2
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#define AIRPDCAP_KEY_TYPE_WPA_PWD 3
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#define AIRPDCAP_KEY_TYPE_WPA_PSK 4
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#define AIRPDCAP_KEY_TYPE_WPA_PMK 5
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#define AIRPDCAP_KEY_TYPE_TKIP 6
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#define AIRPDCAP_KEY_TYPE_CCMP 7
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/* Decryption algorithms fields size definition (bytes) */
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#define AIRPDCAP_WEP_KEY_MINLEN 1
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#define AIRPDCAP_WEP_KEY_MAXLEN 32
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#define AIRPDCAP_WEP_40_KEY_LEN 5
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#define AIRPDCAP_WEP_104_KEY_LEN 13
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#define AIRPDCAP_WPA_PASSPHRASE_MIN_LEN 8
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#define AIRPDCAP_WPA_PASSPHRASE_MAX_LEN 63 /* null-terminated string, the actual length of the storage is 64 */
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#define AIRPDCAP_WPA_SSID_MIN_LEN 0
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#define AIRPDCAP_WPA_SSID_MAX_LEN 32
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#define AIRPDCAP_WPA_PSK_LEN 64
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#define AIRPDCAP_WPA_PMK_LEN 32
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/* */
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/* */
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/******************************************************************************/
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/******************************************************************************/
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/* Macro definitions */
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/* */
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/* */
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/******************************************************************************/
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/******************************************************************************/
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/* Type definitions */
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/* */
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/**
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* Struct to store info about a specific decryption key.
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*/
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typedef struct {
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GString *key;
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GByteArray *ssid;
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guint bits;
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guint type;
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} decryption_key_t;
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/**
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* Key item used during the decryption process.
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*/
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typedef struct _AIRPDCAP_KEY_ITEM {
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/**
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* Type of key. The type will remain unchanged during the
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* processing, even if some fields could be changed (e.g., WPA
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* fields).
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* @note
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* You can use constants AIRPDCAP_KEY_TYPE_xxx to indicate the
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* key type.
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*/
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UINT8 KeyType;
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/**
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* Key data.
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* This field can be used for the following decryptographic
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* algorithms: WEP-40, with a key of 40 bits (10 hex-digits);
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* WEP-104, with a key of 104 bits (or 26 hex-digits); WPA or
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* WPA2.
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* @note
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* For WPA/WPA2, the PMK is calculated from the PSK, and the PSK
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* is calculated from the passphrase-SSID pair. You can enter one
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* of these 3 values and subsequent fields will be automatically
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* calculated.
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* @note
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* For WPA and WPA2 this implementation will use standards as
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* defined in 802.11i (2004) and 802.1X (2004).
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*/
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union AIRPDCAP_KEY_ITEMDATA {
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struct AIRPDCAP_KEY_ITEMDATA_WEP {
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/**
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* The binary value of the WEP key.
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* @note
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* It is accepted a key of length between
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* AIRPDCAP_WEP_KEY_MINLEN and
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* AIRPDCAP_WEP_KEY_MAXLEN. A WEP key
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* standard-compliante should be either 40 bits
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* (10 hex-digits, 5 bytes) for WEP-40 or 104 bits
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* (26 hex-digits, 13 bytes) for WEP-104.
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*/
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UCHAR WepKey[AIRPDCAP_WEP_KEY_MAXLEN];
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/**
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* The length of the WEP key. Acceptable range
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* is [AIRPDCAP_WEP_KEY_MINLEN;AIRPDCAP_WEP_KEY_MAXLEN].
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*/
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size_t WepKeyLen;
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} Wep;
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/**
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* WPA/WPA2 key data. Note that the decryption process
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* will use the PMK (equal to PSK), that is calculated
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* from passphrase-SSID pair. You can define one of these
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* three fields and necessary fields will be automatically
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* calculated.
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*/
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union AIRPDCAP_KEY_ITEMDATA_WPA {
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UCHAR Psk[AIRPDCAP_WPA_PSK_LEN];
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UCHAR Pmk[AIRPDCAP_WPA_PMK_LEN];
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} Wpa;
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} KeyData;
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struct AIRPDCAP_KEY_ITEMDATA_PWD {
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/**
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* The string (null-terminated) value of
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* the passphrase.
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*/
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CHAR Passphrase[AIRPDCAP_WPA_PASSPHRASE_MAX_LEN+1];
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/**
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* The value of the SSID (up to
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* AIRPDCAP_WPA_SSID_MAX_LEN octets).
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* @note
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* A zero-length SSID indicates broadcast.
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*/
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CHAR Ssid[AIRPDCAP_WPA_SSID_MAX_LEN];
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/**
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*The length of the SSID
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*/
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size_t SsidLen;
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} UserPwd;
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} AIRPDCAP_KEY_ITEM, *PAIRPDCAP_KEY_ITEM;
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/**
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* Collection of keys to use to decrypt packets
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*/
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typedef struct _AIRPDCAP_KEYS_COLLECTION {
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/**
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* Number of stored keys
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*/
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size_t nKeys;
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/**
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* Array of nKeys keys
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*/
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AIRPDCAP_KEY_ITEM Keys[256];
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} AIRPDCAP_KEYS_COLLECTION, *PAIRPDCAP_KEYS_COLLECTION;
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/* */
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/******************************************************************************/
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/******************************************************************************/
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/* Function prototype declarations */
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/**
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* Returns the decryption_key_t struct given a string describing the key.
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* @param key_string [IN] Key string in one of the following formats:
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* - 0102030405 (40/64-bit WEP)
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* - 01:02:03:04:05 (40/64-bit WEP)
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* - 0102030405060708090a0b0c0d (104/128-bit WEP)
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* - 01:02:03:04:05:06:07:08:09:0a:0b:0c:0d (104/128-bit WEP)
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* - MyPassword (WPA + plaintext password + "wildcard" SSID)
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* - MyPassword:MySSID (WPA + plaintext password + specific SSID)
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* - 01020304... (WPA + 256-bit raw key)
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* @param key_type [IN] Type of key used for string. Possibilities include:
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* - AIRPDCAP_KEY_TYPE_WEP (40/64-bit and 104/128-bit WEP)
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* - AIRPDCAP_KEY_TYPE_WPA_PWD (WPA + plaintext password + "wildcard" SSID or
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* WPA + plaintext password + specific SSID)
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* - AIRPDCAP_KEY_TYPE_WPA_PSK (WPA + 256-bit raw key)
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* @return A pointer to a freshly-g_malloc()ed decryption_key_t struct on
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* success, or NULL on failure.
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* @see get_key_string()
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*/
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decryption_key_t*
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parse_key_string(gchar* key_string, guint8 key_type);
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/**
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* Returns a newly allocated string representing the given decryption_key_t
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* struct.
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* @param dk [IN] Pointer to the key to be converted
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* @return A g_malloc()ed string representation of the key
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* @see parse_key_string()
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*/
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gchar*
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get_key_string(decryption_key_t* dk);
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/******************************************************************************/
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#endif /* _AIRPDCAP_USER_H */
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