![Anders Broman](/assets/img/avatar_default.png)
Register eapol dissector. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7633 svn path=/trunk/; revision=45498
521 lines
19 KiB
C
521 lines
19 KiB
C
/* packet-eapol.c
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* Routines for EAPOL 802.1X authentication header disassembly
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* (From IEEE Draft P802.1X/D11; is there a later draft, or a
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* final standard? If so, check it.)
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/crypt/wep-wpadefs.h>
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#include "packet-ieee80211.h"
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#include <epan/etypes.h>
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static int proto_eapol = -1;
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static int hf_eapol_version = -1;
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static int hf_eapol_type = -1;
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static int hf_eapol_len = -1;
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static int hf_eapol_keydes_type = -1;
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static int hf_eapol_keydes_key_len = -1;
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static int hf_eapol_keydes_replay_counter = -1;
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static int hf_eapol_keydes_key_iv = -1;
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static int hf_eapol_keydes_key_index = -1;
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static int hf_eapol_keydes_key_index_type = -1;
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static int hf_eapol_keydes_key_index_number = -1;
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static int hf_eapol_keydes_key_signature = -1;
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static int hf_eapol_keydes_key = -1;
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static int hf_eapol_keydes_key_generated_locally = -1;
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static int hf_eapol_wpa_keydes_keyinfo = -1;
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static int hf_eapol_wpa_keydes_keyinfo_keydes_version = -1;
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static int hf_eapol_wpa_keydes_keyinfo_key_type = -1;
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static int hf_eapol_wpa_keydes_keyinfo_key_index = -1;
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static int hf_eapol_wpa_keydes_keyinfo_install = -1;
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static int hf_eapol_wpa_keydes_keyinfo_key_ack = -1;
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static int hf_eapol_wpa_keydes_keyinfo_key_mic = -1;
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static int hf_eapol_wpa_keydes_keyinfo_secure = -1;
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static int hf_eapol_wpa_keydes_keyinfo_error = -1;
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static int hf_eapol_wpa_keydes_keyinfo_request = -1;
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static int hf_eapol_wpa_keydes_keyinfo_encrypted_key_data = -1;
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static int hf_eapol_wpa_keydes_nonce = -1;
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static int hf_eapol_wpa_keydes_rsc = -1;
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static int hf_eapol_wpa_keydes_id = -1;
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static int hf_eapol_wpa_keydes_mic = -1;
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static int hf_eapol_wpa_keydes_data_len = -1;
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static int hf_eapol_wpa_keydes_data = -1;
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static gint ett_eapol = -1;
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static gint ett_eapol_keydes_data = -1;
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static gint ett_eapol_key_index = -1;
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static gint ett_keyinfo = -1;
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static dissector_handle_t eap_handle;
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static dissector_handle_t data_handle;
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#define EAPOL_HDR_LEN 4
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#define EAPOL_2001 1
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#define EAPOL_2004 2
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#define EAPOL_2010 3
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#define EAP_PACKET 0
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#define EAPOL_START 1
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#define EAPOL_LOGOFF 2
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#define EAPOL_KEY 3
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#define EAPOL_ENCAP_ASF_ALERT 4
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#define EAPOL_RSN_KEY 2 /* TBD, may change in final IEEE 802.1X-REV
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*/
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#define EAPOL_WPA_KEY 254
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static const value_string eapol_version_vals[] = {
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{ EAPOL_2001, "802.1X-2001" },
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{ EAPOL_2004, "802.1X-2004" },
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{ EAPOL_2010, "802.1X-2010" },
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{ 0, NULL }
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};
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static const value_string eapol_type_vals[] = {
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{ EAP_PACKET, "EAP Packet" },
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{ EAPOL_START, "Start" },
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{ EAPOL_LOGOFF, "Logoff" },
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{ EAPOL_KEY, "Key" },
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{ EAPOL_ENCAP_ASF_ALERT, "Encapsulated ASF Alert" },
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{ 0, NULL }
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};
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static const value_string eapol_keydes_type_vals[] = {
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{ 1, "RC4 Descriptor" },
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{ EAPOL_RSN_KEY, "EAPOL RSN Key" },
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{ EAPOL_WPA_KEY, "EAPOL WPA Key" },
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{ 0, NULL }
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};
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#define KEY_INFO_KEYDES_VERSION_MASK 0x0007
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#define KEY_INFO_KEY_TYPE_MASK 0x0008
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#define KEY_INFO_KEY_INDEX_MASK 0x0030
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#define KEY_INFO_INSTALL_MASK 0x0040
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#define KEY_INFO_KEY_ACK_MASK 0x0080
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#define KEY_INFO_KEY_MIC_MASK 0x0100
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#define KEY_INFO_SECURE_MASK 0x0200
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#define KEY_INFO_ERROR_MASK 0x0400
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#define KEY_INFO_REQUEST_MASK 0x0800
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#define KEY_INFO_ENCRYPTED_KEY_DATA_MASK 0x1000
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static const true_false_string keytype_tfs = { "Unicast", "Broadcast" };
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static const true_false_string keyinfo_key_type_tfs = { "Pairwise Key", "Group Key" };
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#define KEYDES_KEY_INDEX_TYPE_MASK 0x80
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#define KEYDES_KEY_INDEX_NUMBER_MASK 0x7F
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#define KEYDES_VER_TYPE1 0x01
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#define KEYDES_VER_TYPE2 0x02
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#define KEYDES_VER_TYPE3 0x03
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static const value_string keydes_version_vals[] = {
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{ KEYDES_VER_TYPE1, "RC4 Cipher, HMAC-MD5 MIC" },
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{ KEYDES_VER_TYPE2, "AES Cipher, HMAC-SHA1 MIC" },
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{ KEYDES_VER_TYPE3, "AES Cipher, AES-128-CMAC MIC" },
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{ 0, NULL }
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};
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static void
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dissect_eapol(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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int offset = 0;
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guint8 eapol_type;
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guint8 keydesc_type;
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guint16 eapol_len;
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guint len;
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guint16 eapol_key_len, eapol_data_len;
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guint16 keyinfo;
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gboolean generated_locally;
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proto_tree *ti = NULL;
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proto_tree *eapol_tree = NULL;
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proto_tree *keyinfo_item = NULL;
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proto_tree *keyinfo_tree = NULL;
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proto_tree *key_index_tree, *keydes_tree;
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tvbuff_t *next_tvb;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "EAPOL");
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col_clear(pinfo->cinfo, COL_INFO);
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if (tree) {
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ti = proto_tree_add_item(tree, proto_eapol, tvb, 0, -1, ENC_NA);
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eapol_tree = proto_item_add_subtree(ti, ett_eapol);
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proto_tree_add_item(eapol_tree, hf_eapol_version, tvb, offset, 1, ENC_BIG_ENDIAN);
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}
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offset++;
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eapol_type = tvb_get_guint8(tvb, offset);
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if (tree)
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proto_tree_add_item(eapol_tree, hf_eapol_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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if (check_col(pinfo->cinfo, COL_INFO))
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col_add_str(pinfo->cinfo, COL_INFO,
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val_to_str(eapol_type, eapol_type_vals, "Unknown Type (0x%02X)"));
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offset++;
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eapol_len = tvb_get_ntohs(tvb, offset);
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len = EAPOL_HDR_LEN + eapol_len;
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set_actual_length(tvb, len);
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if (tree) {
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proto_item_set_len(ti, len);
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proto_tree_add_item(eapol_tree, hf_eapol_len, tvb, offset, 2, ENC_BIG_ENDIAN);
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}
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offset += 2;
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switch (eapol_type) {
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case EAP_PACKET:
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next_tvb = tvb_new_subset_remaining(tvb, offset);
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call_dissector(eap_handle, next_tvb, pinfo, eapol_tree);
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break;
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case EAPOL_KEY:
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if (tree) {
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keydesc_type = tvb_get_guint8(tvb, offset);
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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if (keydesc_type == EAPOL_WPA_KEY || keydesc_type == EAPOL_RSN_KEY) {
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keyinfo = tvb_get_ntohs(tvb, offset);
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if (check_col(pinfo->cinfo, COL_INFO)) {
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if (keyinfo & KEY_INFO_REQUEST_MASK) {
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Request)");
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if (keyinfo & KEY_INFO_ERROR_MASK)
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Request, Error)");
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} else if (keyinfo & KEY_INFO_KEY_TYPE_MASK) {
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guint16 masked;
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masked = keyinfo &
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(KEY_INFO_INSTALL_MASK | KEY_INFO_KEY_ACK_MASK |
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KEY_INFO_KEY_MIC_MASK | KEY_INFO_SECURE_MASK);
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switch (masked) {
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case KEY_INFO_KEY_ACK_MASK:
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Message 1 of 4)");
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break;
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case KEY_INFO_KEY_MIC_MASK:
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Message 2 of 4)");
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break;
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case (KEY_INFO_INSTALL_MASK | KEY_INFO_KEY_ACK_MASK |
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KEY_INFO_KEY_MIC_MASK | KEY_INFO_SECURE_MASK):
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Message 3 of 4)");
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break;
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case (KEY_INFO_KEY_MIC_MASK | KEY_INFO_SECURE_MASK):
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Message 4 of 4)");
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break;
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}
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} else {
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if (keyinfo & KEY_INFO_KEY_ACK_MASK)
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Group Message 1 of 2)");
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else
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col_set_str(pinfo->cinfo, COL_INFO, "Key (Group Message 2 of 2)");
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}
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}
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keyinfo_item =
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_keyinfo, tvb,
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offset, 2, ENC_BIG_ENDIAN);
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keyinfo_tree = proto_item_add_subtree(keyinfo_item, ett_keyinfo);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_keydes_version, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_key_type, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_key_index, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_install, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_key_ack, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_key_mic, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_secure, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_error, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_request, tvb, offset, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(keyinfo_tree, hf_eapol_wpa_keydes_keyinfo_encrypted_key_data, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_len, tvb, offset,
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2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_replay_counter, tvb,
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offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_nonce, tvb, offset,
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32, ENC_BIG_ENDIAN);
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offset += 32;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_iv, tvb,
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offset, 16, ENC_BIG_ENDIAN);
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offset += 16;
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_rsc, tvb, offset,
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8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_id, tvb, offset, 8,
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ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_mic, tvb, offset,
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16, ENC_BIG_ENDIAN);
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offset += 16;
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eapol_data_len = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_data_len, tvb,
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offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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if (eapol_data_len != 0) {
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ti = proto_tree_add_item(eapol_tree, hf_eapol_wpa_keydes_data,
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tvb, offset, eapol_data_len, ENC_BIG_ENDIAN);
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if ((keyinfo & KEY_INFO_ENCRYPTED_KEY_DATA_MASK) ||
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!(keyinfo & KEY_INFO_KEY_TYPE_MASK)) {
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/* RSN: EAPOL-Key Key Data is encrypted.
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* WPA: Group Keys use encrypted Key Data.
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* Cannot parse this without knowing the key.
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* IEEE 802.11i-2004 8.5.2.
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*/
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} else {
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keydes_tree = proto_item_add_subtree(ti, ett_eapol_keydes_data);
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ieee_80211_add_tagged_parameters(tvb, offset, pinfo, keydes_tree,
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eapol_data_len, -1);
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}
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}
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} else {
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eapol_key_len = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_len, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_replay_counter, tvb,
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offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_iv, tvb,
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offset, 16, ENC_NA);
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offset += 16;
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ti = proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_index, tvb, offset, 1, ENC_BIG_ENDIAN);
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key_index_tree = proto_item_add_subtree(ti, ett_eapol_key_index);
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proto_tree_add_item(key_index_tree, hf_eapol_keydes_key_index_type,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(key_index_tree, hf_eapol_keydes_key_index_number,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key_signature, tvb,
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offset, 16, ENC_NA);
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offset += 16;
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if (eapol_key_len != 0) {
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/* IEEE 802.1X-2004 7.6.3.6: If no bytes remain, then */
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generated_locally = eapol_len <= 44; /* Size of rc4 key with no key content */
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if (!generated_locally) {
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proto_tree_add_item(eapol_tree, hf_eapol_keydes_key, tvb, offset,
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eapol_key_len, ENC_BIG_ENDIAN);
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}
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proto_tree_add_boolean(eapol_tree, hf_eapol_keydes_key_generated_locally, tvb, offset,
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0, generated_locally);
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}
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}
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}
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break;
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case EAPOL_ENCAP_ASF_ALERT: /* XXX - is this an SNMP trap? */
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default:
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next_tvb = tvb_new_subset_remaining(tvb, offset);
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call_dissector(data_handle, next_tvb, pinfo, eapol_tree);
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break;
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}
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}
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void
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proto_register_eapol(void)
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{
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static hf_register_info hf[] = {
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{ &hf_eapol_version, {
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"Version", "eapol.version",
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FT_UINT8, BASE_DEC, VALS(eapol_version_vals), 0x0,
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NULL, HFILL }},
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{ &hf_eapol_type, {
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"Type", "eapol.type",
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FT_UINT8, BASE_DEC, VALS(eapol_type_vals), 0x0,
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NULL, HFILL }},
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{ &hf_eapol_len, {
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"Length", "eapol.len",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_eapol_keydes_type, {
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"Key Descriptor Type", "eapol.keydes.type",
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FT_UINT8, BASE_DEC, VALS(eapol_keydes_type_vals), 0x0,
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NULL, HFILL }},
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{ &hf_eapol_keydes_key_len, {
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"Key Length", "eapol.keydes.key_len",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_eapol_keydes_replay_counter, {
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"Replay Counter", "eapol.keydes.replay_counter",
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FT_UINT64, BASE_DEC, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_eapol_keydes_key_iv, {
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"Key IV", "eapol.keydes.key_iv",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_eapol_keydes_key_index, {
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"Key Index", "eapol.keydes.key_index",
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FT_UINT8, BASE_HEX, NULL, 0x0,
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NULL, HFILL }},
|
|
|
|
{ &hf_eapol_keydes_key_index_type, {
|
|
"Type", "eapol.keydes.key_index.type",
|
|
FT_BOOLEAN, 8, TFS(&keytype_tfs), KEYDES_KEY_INDEX_TYPE_MASK ,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_keydes_key_index_number, {
|
|
"Number", "eapol.keydes.key_index.number",
|
|
FT_UINT8, BASE_DEC, NULL, KEYDES_KEY_INDEX_NUMBER_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_keydes_key_signature, {
|
|
"Key Signature", "eapol.keydes.key_signature",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_keydes_key, {
|
|
"Key", "eapol.keydes.key",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_keydes_key_generated_locally, {
|
|
"Key Generated Locally", "eapol.keydes.key.generated_locally",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo, {
|
|
"Key Information", "eapol.keydes.key_info",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_keydes_version, {
|
|
"Key Descriptor Version", "eapol.keydes.key_info.keydes_version",
|
|
FT_UINT16, BASE_DEC, VALS(keydes_version_vals), KEY_INFO_KEYDES_VERSION_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_key_type, {
|
|
"Key Type", "eapol.keydes.key_info.key_type",
|
|
FT_BOOLEAN, 16, TFS(&keyinfo_key_type_tfs), KEY_INFO_KEY_TYPE_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_key_index, {
|
|
"Key Index", "eapol.keydes.key_info.key_index",
|
|
FT_UINT16, BASE_DEC, NULL, KEY_INFO_KEY_INDEX_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_install, {
|
|
"Install", "eapol.keydes.key_info.install",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_INSTALL_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_key_ack, {
|
|
"Key ACK", "eapol.keydes.key_info.key_ack",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_KEY_ACK_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_key_mic, {
|
|
"Key MIC", "eapol.keydes.key_info.key_mic",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_KEY_MIC_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_secure, {
|
|
"Secure", "eapol.keydes.key_info.secure",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_SECURE_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_error, {
|
|
"Error", "eapol.keydes.key_info.error",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_ERROR_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_request, {
|
|
"Request", "eapol.keydes.key_info.request",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_REQUEST_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_keyinfo_encrypted_key_data, {
|
|
"Encrypted Key Data", "eapol.keydes.key_info.encrypted_key_data",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), KEY_INFO_ENCRYPTED_KEY_DATA_MASK,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_nonce, {
|
|
"WPA Key Nonce", "eapol.keydes.nonce",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_rsc, {
|
|
"WPA Key RSC", "eapol.keydes.rsc",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_id, {
|
|
"WPA Key ID", "eapol.keydes.id",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_mic, {
|
|
"WPA Key MIC", "eapol.keydes.mic",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_data_len, {
|
|
"WPA Key Data Length", "eapol.keydes.data_len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_eapol_wpa_keydes_data, {
|
|
"WPA Key Data", "eapol.keydes.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_eapol,
|
|
&ett_eapol_keydes_data,
|
|
&ett_keyinfo,
|
|
&ett_eapol_key_index
|
|
};
|
|
|
|
proto_eapol = proto_register_protocol("802.1X Authentication", "EAPOL", "eapol");
|
|
register_dissector("eapol", dissect_eapol, proto_eapol);
|
|
|
|
proto_register_field_array(proto_eapol, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_eapol(void)
|
|
{
|
|
dissector_handle_t eapol_handle;
|
|
|
|
/*
|
|
* Get handles for the EAP and raw data dissectors.
|
|
*/
|
|
eap_handle = find_dissector("eap");
|
|
data_handle = find_dissector("data");
|
|
|
|
eapol_handle = create_dissector_handle(dissect_eapol, proto_eapol);
|
|
dissector_add_uint("ethertype", ETHERTYPE_EAPOL, eapol_handle);
|
|
dissector_add_uint("ethertype", ETHERTYPE_RSN_PREAUTH, eapol_handle);
|
|
}
|