asn1/snmp/packet-snmp-template.h

   1 /* packet-snmp.h
   2  * Routines for snmp packet dissection
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #ifndef PACKET_SNMP_H
  26 #define PACKET_SNMP_H
  27
  28 typedef struct _snmp_usm_key {
  29         guint8* data;
  30         guint len;
  31 } snmp_usm_key_t;
  32
  33 typedef struct _snmp_ue_assoc_t snmp_ue_assoc_t;
  34 typedef struct _snmp_usm_params_t snmp_usm_params_t;
  35
  36 typedef gboolean (*snmp_usm_authenticator_t)(snmp_usm_params_t*, guint8** calc_auth, guint* calc_auth_len, gchar const** error);
  37 typedef tvbuff_t* (*snmp_usm_decoder_t)(snmp_usm_params_t*, tvbuff_t* encryptedData, gchar const** error);
  38 typedef void (*snmp_usm_password_to_key_t)(const guint8 *password, guint passwordlen, const guint8 *engineID, guint engineLength, guint8 *key);
  39
  40 typedef struct _snmp_usm_auth_model_t {
  41         snmp_usm_password_to_key_t pass2key;
  42         snmp_usm_authenticator_t authenticate;
  43         guint key_size;
  44 } snmp_usm_auth_model_t;
  45
  46 typedef struct _snmp_user_t {
  47         snmp_usm_key_t userName;
  48
  49         snmp_usm_auth_model_t* authModel;
  50         snmp_usm_key_t authPassword;
  51         snmp_usm_key_t authKey;
  52
  53         snmp_usm_decoder_t privProtocol;
  54         snmp_usm_key_t privPassword;
  55         snmp_usm_key_t privKey;
  56 } snmp_user_t;
  57
  58 typedef struct {
  59         guint8* data;
  60         guint len;
  61 } snmp_engine_id_t;
  62
  63 struct _snmp_ue_assoc_t {
  64         snmp_user_t user;
  65         snmp_engine_id_t engine;
  66         guint   auth_model;
  67         guint   priv_proto;
  68         struct _snmp_ue_assoc_t* next;
  69 };
  70
  71 struct _snmp_usm_params_t {
  72         gboolean authenticated;
  73         gboolean encrypted;
  74         guint start_offset;
  75         guint auth_offset;
  76
  77         guint32 boots;
  78         guint32 time;
  79         tvbuff_t* engine_tvb;
  80         tvbuff_t* user_tvb;
  81         proto_item* auth_item;
  82         tvbuff_t* auth_tvb;
  83         tvbuff_t* priv_tvb;
  84         tvbuff_t* msg_tvb;
  85         snmp_ue_assoc_t* user_assoc;
  86
  87         gboolean authOK;
  88 };
  89
  90 /*
  91  * Guts of the SNMP dissector - exported for use by protocols such as
  92  * ILMI.
  93  */
  94 extern guint dissect_snmp_pdu(tvbuff_t *, int, packet_info *, proto_tree *tree,
  95     int, gint, gboolean);
  96 extern int dissect_snmp_engineid(proto_tree *, tvbuff_t *, int, int);
  97
  98 /*#include "packet-snmp-exp.h"*/
  99
 100 #endif  /* PACKET_SNMP_H */