snmp.h

eCos操作系统源码

#define SNMP_MSG_GET	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x0)
#define SNMP_MSG_GETNEXT    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x1)
#define SNMP_MSG_RESPONSE   (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x2)
#define SNMP_MSG_SET	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x3)

/* PDU types in SNMPv1 and SNMPsec */
#define SNMP_MSG_TRAP	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x4)

/* PDU types in SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 */
#define SNMP_MSG_GETBULK    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x5)
#define SNMP_MSG_INFORM	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x6)
#define SNMP_MSG_TRAP2	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x7)

/* PDU types in SNMPv2u, SNMPv2*, and SNMPv3 */
#define SNMP_MSG_REPORT	    (ASN_CONTEXT | ASN_CONSTRUCTOR | 0x8)

/* test for member of Confirmed Class i.e., reportable */
#define SNMP_CMD_CONFIRMED(c) (c == SNMP_MSG_INFORM || c == SNMP_MSG_GETBULK ||\
                               c == SNMP_MSG_GETNEXT || c == SNMP_MSG_GET || \
                               c == SNMP_MSG_SET)

/* Exception values for SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 */
#define SNMP_NOSUCHOBJECT    (ASN_CONTEXT | ASN_PRIMITIVE | 0x0)
#define SNMP_NOSUCHINSTANCE  (ASN_CONTEXT | ASN_PRIMITIVE | 0x1)
#define SNMP_ENDOFMIBVIEW    (ASN_CONTEXT | ASN_PRIMITIVE | 0x2)

/* Error codes (the value of the field error-status in PDUs) */

/* in SNMPv1, SNMPsec, SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 PDUs */
#define SNMP_ERR_NOERROR                (0)	/* XXX  Used only for PDUs? */
#define SNMP_ERR_TOOBIG	                (1)
#define SNMP_ERR_NOSUCHNAME             (2)
#define SNMP_ERR_BADVALUE               (3)
#define SNMP_ERR_READONLY               (4)
#define SNMP_ERR_GENERR	                (5)

/* in SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 PDUs */
#define SNMP_ERR_NOACCESS		(6)
#define SNMP_ERR_WRONGTYPE		(7)
#define SNMP_ERR_WRONGLENGTH		(8)
#define SNMP_ERR_WRONGENCODING		(9)
#define SNMP_ERR_WRONGVALUE		(10)
#define SNMP_ERR_NOCREATION		(11)
#define SNMP_ERR_INCONSISTENTVALUE	(12)
#define SNMP_ERR_RESOURCEUNAVAILABLE	(13)
#define SNMP_ERR_COMMITFAILED		(14)
#define SNMP_ERR_UNDOFAILED		(15)
#define SNMP_ERR_AUTHORIZATIONERROR	(16)
#define SNMP_ERR_NOTWRITABLE		(17)

/* in SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 PDUs */
#define SNMP_ERR_INCONSISTENTNAME	(18)

#define MAX_SNMP_ERR	18


/* values of the generic-trap field in trap PDUs */
#define SNMP_TRAP_COLDSTART		(0)
#define SNMP_TRAP_WARMSTART		(1)
#define SNMP_TRAP_LINKDOWN		(2)
#define SNMP_TRAP_LINKUP		(3)
#define SNMP_TRAP_AUTHFAIL		(4)
#define SNMP_TRAP_EGPNEIGHBORLOSS	(5)
#define SNMP_TRAP_ENTERPRISESPECIFIC	(6)

/* row status values */
#define SNMP_ROW_NONEXISTENT		0
#define SNMP_ROW_ACTIVE			1
#define SNMP_ROW_NOTINSERVICE		2
#define SNMP_ROW_NOTREADY		3
#define SNMP_ROW_CREATEANDGO		4
#define SNMP_ROW_CREATEANDWAIT		5
#define SNMP_ROW_DESTROY		6

/* row storage values */
#define SNMP_STORAGE_OTHER		1
#define SNMP_STORAGE_VOLATILE		2
#define SNMP_STORAGE_NONVOLATILE	3
#define SNMP_STORAGE_PERMANENT		4
#define SNMP_STORAGE_READONLY		5

/* message processing models */
#define SNMP_MP_MODEL_SNMPv1		0
#define SNMP_MP_MODEL_SNMPv2c		1
#define SNMP_MP_MODEL_SNMPv2u		2
#define SNMP_MP_MODEL_SNMPv3		3
#define SNMP_MP_MODEL_SNMPv2p		256

/* security values */
#define SNMP_SEC_MODEL_ANY		0
#define SNMP_SEC_MODEL_SNMPv1		1
#define SNMP_SEC_MODEL_SNMPv2c		2
#define SNMP_SEC_MODEL_USM		3
#define SNMP_SEC_MODEL_SNMPv2p		256

#define SNMP_SEC_LEVEL_NOAUTH		1
#define SNMP_SEC_LEVEL_AUTHNOPRIV	2
#define SNMP_SEC_LEVEL_AUTHPRIV		3

#define SNMP_MSG_FLAG_AUTH_BIT          0x01
#define SNMP_MSG_FLAG_PRIV_BIT          0x02
#define SNMP_MSG_FLAG_RPRT_BIT          0x04

	/* control PDU handling characteristics */
#define UCD_MSG_FLAG_RESPONSE_PDU            0x100
#define UCD_MSG_FLAG_EXPECT_RESPONSE         0x200
#define UCD_MSG_FLAG_FORCE_PDU_COPY          0x400
#define UCD_MSG_FLAG_ALWAYS_IN_VIEW          0x800

/* view status */
#define SNMP_VIEW_INCLUDED		1
#define SNMP_VIEW_EXCLUDED		2

/* basic oid values */
#define SNMP_OID_INTERNET		1, 3, 6, 1
#define SNMP_OID_ENTERPRISES		SNMP_OID_INTERNET, 4, 1
#define SNMP_OID_MIB2			SNMP_OID_INTERNET, 2, 1
#define SNMP_OID_SNMPV2			SNMP_OID_INTERNET, 6
#define SNMP_OID_SNMPMODULES		SNMP_OID_SNMPV2, 3

/* lengths as defined by TCs */
#define SNMPADMINLENGTH 255


#ifdef CMU_COMPATIBLE
/* PDU types in SNMPv1, SNMPsec, SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 */
#define GET_REQ_MSG	    SNMP_MSG_GET
#define GETNEXT_REQ_MSG	    SNMP_MSG_GETNEXT
#define GET_RSP_MSG	    SNMP_MSG_RESPONSE
#define SET_REQ_MSG	    SNMP_MSG_SET

/* PDU types in SNMPv1 and SNMPsec */
#define TRP_REQ_MSG	    SNMP_MSG_TRAP

/* PDU types in SNMPv2p, SNMPv2c, SNMPv2u, SNMPv2*, and SNMPv3 */
#define BULK_REQ_MSG	    SNMP_MSG_GETBULK
#define INFORM_REQ_MSG	    SNMP_MSG_INFORM
#define TRP2_REQ_MSG	    SNMP_MSG_TRAP2

/* PDU types in SNMPv2u, SNMPv2*, and SNMPv3 */
#define REPORT_RSP_MSG	    SNMP_MSG_REPORT

/* since CMU V1.5 */

#define SNMP_PDU_GET	    SNMP_MSG_GET
#define SNMP_PDU_GETNEXT    SNMP_MSG_GETNEXT
#define SNMP_PDU_RESPONSE   SNMP_MSG_RESPONSE
#define SNMP_PDU_SET        SNMP_MSG_SET
#define SNMP_PDU_GETBULK    SNMP_MSG_GETBULK
#define SNMP_PDU_INFORM     SNMP_MSG_INFORM
#define SNMP_PDU_V2TRAP     SNMP_MSG_TRAP2
#define SNMP_PDU_REPORT     SNMP_MSG_REPORT

#define SNMP_TRAP_AUTHENTICATIONFAILURE SNMP_TRAP_AUTHFAIL

#define SMI_INTEGER     ASN_INTEGER
#define SMI_STRING      ASN_OCTET_STR
#define SMI_OBJID       ASN_OBJECT_ID
#define SMI_NULLOBJ     ASN_NULL
#define SMI_IPADDRESS   ASN_IPADDRESS
#define SMI_COUNTER32	    ASN_COUNTER
#define SMI_GAUGE32	    ASN_GAUGE
#define SMI_UNSIGNED32 SMI_GAUGE32
#define SMI_TIMETICKS   ASN_TIMETICKS
#define SMI_OPAQUE ASN_OPAQUE
#define SMI_COUNTER64   ASN_COUNTER64

int mib_TxtToOid (char *, oid **, size_t *);
int mib_OidToTxt (oid *, size_t , char *, size_t );

struct snmp_pdu;
char *snmp_pdu_type (struct snmp_pdu *);

struct snmp_session;
u_char * cmu_snmp_parse (struct snmp_session *session,
    struct snmp_pdu *pdu,
    u_char *data,
    size_t length);

#endif /* CMU_COMPATIBLE */

char *uptime_string (u_long, char *);
void xdump (const u_char *, size_t, const char *);
u_char *snmp_parse_var_op (u_char *, oid *, size_t *, u_char *, size_t *,
                               u_char **, size_t *);
u_char *snmp_build_var_op (u_char *, oid *, size_t *, u_char, size_t, u_char *,
                               size_t *);
#ifdef __cplusplus
}
#endif

#endif /* SNMP_H */