packet-snmp.h

/* Do not modify this file. Changes will be overwritten.                      */
/* Generated automatically by the ASN.1 to Wireshark dissector compiler       */
/* packet-snmp.h                                                              */
/* asn2wrs.py -b -q -L -p snmp -c ./snmp.cnf -s ./packet-snmp-template -D . -O ../.. snmp.asn */
 
/* packet-snmp.h
 * Routines for snmp packet dissection
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <[email protected]>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef PACKET_SNMP_H
#define PACKET_SNMP_H
 
#define SNMP_REQ_GET                0
#define SNMP_REQ_GETNEXT            1
#define SNMP_REQ_SET                3
#define SNMP_REQ_GETBULK            5
#define SNMP_REQ_INFORM             6
 
#define SNMP_RES_GET                2
 
#define SNMP_TRAP                   4
#define SNMP_TRAPV2                 7
#define SNMP_REPORT                 8
 
typedef struct _snmp_usm_key {
    uint8_t* data;
    unsigned len;
} snmp_usm_key_t;
 
typedef struct _snmp_ue_assoc_t snmp_ue_assoc_t;
typedef struct _snmp_usm_params_t snmp_usm_params_t;
 
typedef tvbuff_t* (*snmp_usm_decoder_t)(snmp_usm_params_t*, tvbuff_t* encryptedData, packet_info *pinfo, char const** error);
 
typedef enum _snmp_usm_auth_model_t {
    SNMP_USM_AUTH_MD5 = 0,
    SNMP_USM_AUTH_SHA1,
    SNMP_USM_AUTH_SHA2_224,
    SNMP_USM_AUTH_SHA2_256,
    SNMP_USM_AUTH_SHA2_384,
    SNMP_USM_AUTH_SHA2_512
} snmp_usm_auth_model_t;
 
typedef struct _snmp_user_t {
    snmp_usm_key_t userName;
 
    snmp_usm_auth_model_t authModel;
    snmp_usm_key_t authPassword;
    snmp_usm_key_t authKey;
 
    snmp_usm_decoder_t privProtocol;
    snmp_usm_key_t privPassword;
    snmp_usm_key_t privKey;
} snmp_user_t;
 
typedef struct {
    uint8_t* data;
    unsigned len;
} snmp_engine_id_t;
 
struct _snmp_ue_assoc_t {
    snmp_user_t user;
    snmp_engine_id_t engine;
    unsigned    auth_model;
    unsigned    priv_proto;
    unsigned    priv_key_exp;
    struct _snmp_ue_assoc_t* next;
};
 
struct _snmp_usm_params_t {
    bool authenticated;
    bool encrypted;
    unsigned start_offset;
    unsigned auth_offset;
 
    uint32_t boots;
    uint32_t snmp_time;
    tvbuff_t* engine_tvb;
    tvbuff_t* user_tvb;
    proto_item* auth_item;
    tvbuff_t* auth_tvb;
    tvbuff_t* priv_tvb;
    tvbuff_t* msg_tvb;
    snmp_ue_assoc_t* user_assoc;
 
    bool authOK;
};
 
typedef struct snmp_request_response {
    uint32_t request_frame_id;
    uint32_t response_frame_id;
    nstime_t request_time;
    unsigned requestId;
    unsigned request_procedure_id;
} snmp_request_response_t;
 
/*
 * Guts of the SNMP dissector - exported for use by protocols such as
 * ILMI.
 */
extern unsigned dissect_snmp_pdu(tvbuff_t *, int, packet_info *, proto_tree *tree,
    int, int, bool);
extern int dissect_snmp_engineid(proto_tree *, packet_info *, tvbuff_t *, int, int);
 
/*#include "packet-snmp-exp.h"*/
 
#endif  /* PACKET_SNMP_H */