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Diffstat (limited to 'ACE/ASNMP/asnmp/asn1.h')
| -rw-r--r-- | ACE/ASNMP/asnmp/asn1.h | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/ACE/ASNMP/asnmp/asn1.h b/ACE/ASNMP/asnmp/asn1.h new file mode 100644 index 00000000000..3be7e3925ef --- /dev/null +++ b/ACE/ASNMP/asnmp/asn1.h @@ -0,0 +1,345 @@ +/* -*-C++-*- */ +#ifndef ASN1 +#define ASN1 +//============================================================================= +/** + * @file asn1.h + * + * $Id$ + * + * Abstract Syntax Notation One, ASN.1 + * As defined in ISO/IS 8824 and ISO/IS 8825 + * This implements a subset of the above International Standards that + * is sufficient to implement SNMP. + * + * + * @author Steve Waldbusser/CMU ? + */ +//============================================================================= + + +/********************************************************************** + Copyright 1988, 1989, 1991, 1992 by Carnegie Mellon University + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of CMU not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. +******************************************************************/ + +#include "ace/config-all.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +# pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +#include "asnmp/snmp.h" + +// CMU code to define "oid" typedef (old C style) +#ifndef EIGHTBIT_SUBIDS +typedef unsigned long oid; +#define MAX_SUBID 0xFFFFFFFF +#else +typedef unsigned char oid; +#define MAX_SUBID 0xFF +#endif + +#define MAX_OID_LEN 64 /* max subid's in an oid */ + + +// asn.1 values +#define ASN_BOOLEAN (0x01) +#define ASN_INTEGER (0x02) +#define ASN_BIT_STR (0x03) +#define ASN_OCTET_STR (0x04) +#define ASN_NULL (0x05) +#define ASN_OBJECT_ID (0x06) +#define ASN_SEQUENCE (0x10) +#define ASN_SET (0x11) +#define ASN_UNIVERSAL (0x00) +#define ASN_APPLICATION (0x40) +#define ASN_CONTEXT (0x80) +#define ASN_PRIVATE (0xC0) +#define ASN_PRIMITIVE (0x00) +#define ASN_CONSTRUCTOR (0x20) +#define ASN_LONG_LEN (0x80) +#define ASN_EXTENSION_ID (0x1F) +#define ASN_BIT8 (0x80) + +#define IS_CONSTRUCTOR(byte) ((byte) & ASN_CONSTRUCTOR) +#define IS_EXTENSION_ID(byte) (((byte) & ASN_EXTENSION_ID) == ASN_EXTENSION_ID) + +#define ASNERROR( string) +#define MAX_NAME_LEN 64 +#define SNMP_VERSION_1 0 +#define SNMP_VERSION_2C 1 + + +// defined types (from the SMI, RFC 1065) +#define SMI_IPADDRESS (ASN_APPLICATION | 0) +#define SMI_COUNTER (ASN_APPLICATION | 1) +#define SMI_GAUGE (ASN_APPLICATION | 2) +#define SMI_TIMETICKS (ASN_APPLICATION | 3) +#define SMI_OPAQUE (ASN_APPLICATION | 4) +#define SMI_NSAP (ASN_APPLICATION | 5) +#define SMI_COUNTER64 (ASN_APPLICATION | 6) +#define SMI_UINTEGER (ASN_APPLICATION | 7) + +#define GET_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x0) +#define GETNEXT_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x1) +#define GET_RSP_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x2) +#define SET_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x3) +#define TRP_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x4) + +#define GETBULK_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x5) +#define INFORM_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x6) +#define TRP2_REQ_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x7) +#define REPORT_MSG (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x8) + +#define SNMP_NOSUCHOBJECT (ASN_CONTEXT | ASN_PRIMITIVE | 0x0) +#define SNMP_NOSUCHINSTANCE (ASN_CONTEXT | ASN_PRIMITIVE | 0x1) +#define SNMP_ENDOFMIBVIEW (ASN_CONTEXT | ASN_PRIMITIVE | 0x2) + +#define SNMP_MSG_LENGTH 1500 + +typedef struct sockaddr_in ipaddr; + +// pdu +struct snmp_pdu { + int command; // pdu type + unsigned long reqid; // Request id + unsigned long errstat; // Error status + unsigned long errindex; // Error index + + // Trap information + oid *enterprise; // System OID + int enterprise_length; + ipaddr agent_addr; // address of object generating trap + int trap_type; // trap type + int specific_type; // specific type + unsigned long time; // Uptime + + // vb list + struct variable_list *variables; +}; + +// vb list +struct variable_list { + struct variable_list *next_variable; // 0 for last variable + oid *name; // Object identifier of variable + int name_length; // number of subid's in name + unsigned char type; // ASN type of variable + union { // value of variable + long *integer; + unsigned char *string; + oid *objid; + unsigned char *bitstring; + struct counter64 *counter64; + } val; + int val_len; +}; + +struct counter64 { + unsigned long high; + unsigned long low; +}; + +// CMU Interface class for ASN.1 routines +/** + * @class asn1 + * + * @brief Defines the member functions for the asn1 concrete interface class + * CMU routines for performing ASN.1 data marshalling / representation + */ +class ASNMP_Export asn1 + +{ +public: +static unsigned char *parse_int( unsigned char *data, + int *datalength, + unsigned char *type, + long int *intp, + int intsize); +static unsigned char *parse_unsigned_int( unsigned char *data, + int *datalength, + unsigned char *type, + unsigned long *intp, + int intsize); +static unsigned char *build_int( unsigned char *data, + int *datalength, + unsigned char type, + long *intp, + int intsize); + +static unsigned char *build_unsigned_int( unsigned char *data, + int *datalength, + unsigned char type, + unsigned long *intp, + int intsize); + +static unsigned char *parse_string( unsigned char *data, + int *datalength, + unsigned char *type, + unsigned char *string, + int *strlength); + +static unsigned char *build_string( unsigned char *data, + int *datalength, + unsigned char type, + unsigned char *string, + int strlength); + +static unsigned char *parse_header( unsigned char *data, + int *datalength, + unsigned char *type); + +static unsigned char * build_header( unsigned char *data, + int *datalength, + unsigned char type, + int length); + +static unsigned char * build_sequence( unsigned char *data, + int *datalength, + unsigned char type, + int length); + +static unsigned char * parse_length( unsigned char *data, + unsigned long *length); + +static unsigned char *build_length( unsigned char *data, + int *datalength, + int length); + +static unsigned char *build_objid( unsigned char *data, + int *datalength, + unsigned char type, + oid *objid, + int objidlength); + +static unsigned char *parse_objid( unsigned char *data, + int *datalength, + unsigned char *type, + oid *objid, + int *objidlength); + +static unsigned char *parse_null(unsigned char *data, + int *datalength, unsigned + char *type); + +static unsigned char *build_null( unsigned char *data, + int *datalength, + unsigned char type); + +static unsigned char *parse_bitstring( unsigned char *data, + int *datalength, + unsigned char *type, + unsigned char *string, + int *strlength); + +static unsigned char *build_bitstring( unsigned char *data, + int *datalength, + unsigned char type, + unsigned char *string, + int strlength); + +static unsigned char * parse_unsigned_int64(unsigned char *data, + int *datalength, + unsigned char *type, + struct counter64 *cp, + int countersize); + +static unsigned char * build_unsigned_int64( unsigned char *data, + int *datalength, + unsigned char type, + struct counter64 *cp, + int countersize); + +}; + + +// CMU Interface class for SNMPv1, SNMPv2c routines +/** + * @class cmu_snmp + * + * @brief Defines the static functions for the cmu_snmp concrete class. + * These routine create cmu pdu's that can be sent/received on/from agents + */ +class ASNMP_Export cmu_snmp +{ + public: + static struct snmp_pdu *pdu_create( int command); + static void free_pdu( struct snmp_pdu *pdu); + static int build( struct snmp_pdu *pdu, + unsigned char *packet, + int *out_length, + long version, + unsigned char* community, + int community_len); + + static void add_var(struct snmp_pdu *pdu, + oid *name, + int name_length, + SmiVALUE *smival); + + static int parse( struct snmp_pdu *pdu, + unsigned char *data, + unsigned char *community_name, + unsigned long &community_len, + snmp_version &version, + int length); + static unsigned char *auth_build( unsigned char *data, + int *length, + long int version, + unsigned char *community, + int community_len, + int messagelen); + + static unsigned char *build_var_op(unsigned char *data, + oid * var_name, + int *var_name_len, + unsigned char var_val_type, + int var_val_len, + unsigned char *var_val, + int *listlength); + + +static unsigned char *auth_parse(unsigned char *data, + int *length, + unsigned char *sid, + int *slen, + long *version); + +/* + @params data, IN - pointer to the start of object + var_name OUT - object id of variable + var_name_len IN/OUT - length of variable name + var_val_type OUT - type of variable (int or octet string) (one byte) + var_val_len OUT - length of variable + var_val, OUT - pointer to ASN1 encoded value of variable + listlength IN/OUT - number of valid bytes left in var_op_list +*/ +static unsigned char *parse_var_op( unsigned char *data, + oid *var_name, + int *var_name_len, + unsigned char *var_val_type, + int *var_val_len, + unsigned char **var_val, + int *listlength); + +}; + +#endif // ASN1 + |