# SNMPMgr Component The SNMPMgr class is used to implement UDP-based SNMP Management Applications. ## Syntax ```text ipworkssnmp.SNMPMgr ``` ## Remarks The SNMPMgr struct implements a UDP-based standard SNMP Manager as specified in the SNMP RFCs. The struct supports SNMP v1, v2c, and v3. SNMP over DTLS is also supported when [SSLEnabled](#sslenabled-property-snmpmgr-component) is set to True. When acting as a client, the [SSLServerAuthentication](#sslserverauthentication-event-snmpmgr-component) event allows you to check the server identity and other security attributes. The [SSLStatus](#sslstatus-event-snmpmgr-component) event provides information about the DTLS handshake. Additional SSL-related settings are also supported through the [Config](#config-method-snmpmgr-component) method. When acting as a server, the **SSLCert** properties are used to select a certificate for the server. When client authentication is required, the [SSLAuthenticateClients](#sslauthenticateclients-property-snmpmgr-component) property can be set to True and the [SSLClientAuthentication](#sslclientauthentication-event-snmpmgr-component) event can be used to examine client credentials. The struct provides both encoding/decoding and transport capabilities, making the task of developing a custom SNMP manager as simple as setting a few key properties and handling a few events. SNMP data, such as for instance SNMP object id-s (OID-s) are exchanged as text strings, thus further simplifying the task of handling them. The struct is activated/deactivated by calling the [Activate](#activate-method-snmpmgr-component) or [Deactivate](#deactivate-method-snmpmgr-component) method. These methods enable or disable sending and receiving. The activation status can be found in the [Active](#active-property-snmpmgr-component) property. Messages are received through events such as [Response](#response-event-snmpmgr-component), [Trap](#trap-event-snmpmgr-component), or [InformRequest](#informrequest-event-snmpmgr-component). SNMP Traps are received through the [Trap](#trap-event-snmpmgr-component) event. Messages are sent to other agents or managers by using struct's methods such as [SendGetRequest](#sendgetrequest-method-snmpmgr-component), [SendGetNextRequest](#sendgetnextrequest-method-snmpmgr-component), [SendGetBulkRequest](#sendgetbulkrequest-method-snmpmgr-component), [SendSetRequest](#sendsetrequest-method-snmpmgr-component), and [SendInformRequest](#sendinformrequest-method-snmpmgr-component). SNMP OIDs, types, and values are provided in the Objects collection of SNMP objects for both sent and received packets. SNMPv3 USM security is enabled by setting properties such as [User](#user-property-snmpmgr-component), [AuthenticationPassword](#authenticationpassword-property-snmpmgr-component), and [EncryptionPassword](#encryptionpassword-property-snmpmgr-component) and calling the [Discover](#discover-method-snmpmgr-component) method to bind to a particular agent ([RemoteEngineId](#remoteengineid-property-snmpmgr-component)). Upon successful discovery, received packets are checked for integrity (authentication) and timeliness. Note that the discovery step is optional, and may be avoided if the values for [RemoteEngineId](#remoteengineid-property-snmpmgr-component), [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component), and [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) are known in advance and provided to the struct through the respective properties. By default, the struct operates synchronously (except for the [Discover](#discover-method-snmpmgr-component) method), sending a request and waiting until the corresponding response has been received. This behavior may be overridden by setting [Timeout](#timeout-property-snmpmgr-component) to 0, in which case the struct returns control immediately after a send, and responses are received exclusively through the [Response](#response-event-snmpmgr-component) event. ## Property List *The following is the full list of the properties of the component with short descriptions. Click on the links for further details.* | | | | --- | --- | | [AcceptData](#acceptdata-property-snmpmgr-component) | Enables or disables data reception. | | [Active](#active-property-snmpmgr-component) | Indicates whether the class is active. | | [AuthenticationPassword](#authenticationpassword-property-snmpmgr-component) | The password used for SNMPv3 authentication. | | [AuthenticationProtocol](#authenticationprotocol-property-snmpmgr-component) | The authentication protocol used for SNMPv3 packets. | | [Community](#community-property-snmpmgr-component) | The community string used to authenticate SNMP packets. | | [EncryptionAlgorithm](#encryptionalgorithm-property-snmpmgr-component) | The encryption algorithm used for SNMPv3 packets. | | [EncryptionPassword](#encryptionpassword-property-snmpmgr-component) | The password used for SNMPv3 privacy. | | [ErrorDescription](#errordescription-property-snmpmgr-component) | Description of the status code for the last SNMP packet received by the class. | | [ErrorIndex](#errorindex-property-snmpmgr-component) | Index of the first variable (object) that caused an error from the last SNMP response. | | [ErrorStatus](#errorstatus-property-snmpmgr-component) | Status code for the last SNMP packet received by the class. | | [LocalEngineId](#localengineid-property-snmpmgr-component) | The Engine Id of the SNMP Manager. | | [LocalHost](#localhost-property-snmpmgr-component) | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. | | [LocalPort](#localport-property-snmpmgr-component) | The port in the local host where the SNMP Manager is bound to. | | [ObjCount](#objcount-property-snmpmgr-component) | The number of records in the Obj arrays. | | [ObjType](#objtype-property-snmpmgr-component) | The current object's type. | | [ObjId](#objid-property-snmpmgr-component) | The current object's id which is encoded as a string of numbers separated by periods. | | [ObjTypeString](#objtypestring-property-snmpmgr-component) | A string representation of the current object's ObjectType . | | [ObjValue](#objvalue-property-snmpmgr-component) | The current object's value. | | [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component) | The remote engine boots (SNMPv3). | | [RemoteEngineId](#remoteengineid-property-snmpmgr-component) | The Engine Id of the remote agent. | | [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) | The remote engine time (SNMPv3). | | [RemoteHost](#remotehost-property-snmpmgr-component) | The address of the remote host. Domain names are resolved to IP addresses. | | [RemotePort](#remoteport-property-snmpmgr-component) | The port where the remote SNMP agent is listening. | | [RequestId](#requestid-property-snmpmgr-component) | The request-id to mark outgoing packets with. | | [SNMPVersion](#snmpversion-property-snmpmgr-component) | Version of SNMP used for outgoing requests. | | [SSLAcceptServerCertEffectiveDate](#sslacceptservercerteffectivedate-property-snmpmgr-component) | The date on which this certificate becomes valid. | | [SSLAcceptServerCertExpirationDate](#sslacceptservercertexpirationdate-property-snmpmgr-component) | The date on which the certificate expires. | | [SSLAcceptServerCertExtendedKeyUsage](#sslacceptservercertextendedkeyusage-property-snmpmgr-component) | A comma-delimited list of extended key usage identifiers. | | [SSLAcceptServerCertFingerprint](#sslacceptservercertfingerprint-property-snmpmgr-component) | The hex-encoded, 16-byte MD5 fingerprint of the certificate. | | [SSLAcceptServerCertFingerprintSHA1](#sslacceptservercertfingerprintsha1-property-snmpmgr-component) | The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. | | [SSLAcceptServerCertFingerprintSHA256](#sslacceptservercertfingerprintsha256-property-snmpmgr-component) | The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. | | [SSLAcceptServerCertIssuer](#sslacceptservercertissuer-property-snmpmgr-component) | The issuer of the certificate. | | [SSLAcceptServerCertPrivateKey](#sslacceptservercertprivatekey-property-snmpmgr-component) | The private key of the certificate (if available). | | [SSLAcceptServerCertPrivateKeyAvailable](#sslacceptservercertprivatekeyavailable-property-snmpmgr-component) | Whether a PrivateKey is available for the selected certificate. | | [SSLAcceptServerCertPrivateKeyContainer](#sslacceptservercertprivatekeycontainer-property-snmpmgr-component) | The name of the PrivateKey container for the certificate (if available). | | [SSLAcceptServerCertPublicKey](#sslacceptservercertpublickey-property-snmpmgr-component) | The public key of the certificate. | | [SSLAcceptServerCertPublicKeyAlgorithm](#sslacceptservercertpublickeyalgorithm-property-snmpmgr-component) | The textual description of the certificate's public key algorithm. | | [SSLAcceptServerCertPublicKeyLength](#sslacceptservercertpublickeylength-property-snmpmgr-component) | The length of the certificate's public key (in bits). | | [SSLAcceptServerCertSerialNumber](#sslacceptservercertserialnumber-property-snmpmgr-component) | The serial number of the certificate encoded as a string. | | [SSLAcceptServerCertSignatureAlgorithm](#sslacceptservercertsignaturealgorithm-property-snmpmgr-component) | The text description of the certificate's signature algorithm. | | [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) | The name of the certificate store for the client certificate. | | [SSLAcceptServerCertStorePassword](#sslacceptservercertstorepassword-property-snmpmgr-component) | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. | | [SSLAcceptServerCertStoreType](#sslacceptservercertstoretype-property-snmpmgr-component) | The type of certificate store for this certificate. | | [SSLAcceptServerCertSubjectAltNames](#sslacceptservercertsubjectaltnames-property-snmpmgr-component) | Comma-separated lists of alternative subject names for the certificate. | | [SSLAcceptServerCertThumbprintMD5](#sslacceptservercertthumbprintmd5-property-snmpmgr-component) | The MD5 hash of the certificate. | | [SSLAcceptServerCertThumbprintSHA1](#sslacceptservercertthumbprintsha1-property-snmpmgr-component) | The SHA-1 hash of the certificate. | | [SSLAcceptServerCertThumbprintSHA256](#sslacceptservercertthumbprintsha256-property-snmpmgr-component) | The SHA-256 hash of the certificate. | | [SSLAcceptServerCertUsage](#sslacceptservercertusage-property-snmpmgr-component) | The text description of UsageFlags . | | [SSLAcceptServerCertUsageFlags](#sslacceptservercertusageflags-property-snmpmgr-component) | The flags that show intended use for the certificate. | | [SSLAcceptServerCertVersion](#sslacceptservercertversion-property-snmpmgr-component) | The certificate's version number. | | [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) | The subject of the certificate used for client authentication. | | [SSLAcceptServerCertEncoded](#sslacceptservercertencoded-property-snmpmgr-component) | The certificate (PEM/Base64 encoded). | | [SSLAuthenticateClients](#sslauthenticateclients-property-snmpmgr-component) | If set to True, the server asks the client(s) for a certificate. | | [SSLCertEffectiveDate](#sslcerteffectivedate-property-snmpmgr-component) | The date on which this certificate becomes valid. | | [SSLCertExpirationDate](#sslcertexpirationdate-property-snmpmgr-component) | The date on which the certificate expires. | | [SSLCertExtendedKeyUsage](#sslcertextendedkeyusage-property-snmpmgr-component) | A comma-delimited list of extended key usage identifiers. | | [SSLCertFingerprint](#sslcertfingerprint-property-snmpmgr-component) | The hex-encoded, 16-byte MD5 fingerprint of the certificate. | | [SSLCertFingerprintSHA1](#sslcertfingerprintsha1-property-snmpmgr-component) | The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. | | [SSLCertFingerprintSHA256](#sslcertfingerprintsha256-property-snmpmgr-component) | The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. | | [SSLCertIssuer](#sslcertissuer-property-snmpmgr-component) | The issuer of the certificate. | | [SSLCertPrivateKey](#sslcertprivatekey-property-snmpmgr-component) | The private key of the certificate (if available). | | [SSLCertPrivateKeyAvailable](#sslcertprivatekeyavailable-property-snmpmgr-component) | Whether a PrivateKey is available for the selected certificate. | | [SSLCertPrivateKeyContainer](#sslcertprivatekeycontainer-property-snmpmgr-component) | The name of the PrivateKey container for the certificate (if available). | | [SSLCertPublicKey](#sslcertpublickey-property-snmpmgr-component) | The public key of the certificate. | | [SSLCertPublicKeyAlgorithm](#sslcertpublickeyalgorithm-property-snmpmgr-component) | The textual description of the certificate's public key algorithm. | | [SSLCertPublicKeyLength](#sslcertpublickeylength-property-snmpmgr-component) | The length of the certificate's public key (in bits). | | [SSLCertSerialNumber](#sslcertserialnumber-property-snmpmgr-component) | The serial number of the certificate encoded as a string. | | [SSLCertSignatureAlgorithm](#sslcertsignaturealgorithm-property-snmpmgr-component) | The text description of the certificate's signature algorithm. | | [SSLCertStore](#sslcertstore-property-snmpmgr-component) | The name of the certificate store for the client certificate. | | [SSLCertStorePassword](#sslcertstorepassword-property-snmpmgr-component) | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. | | [SSLCertStoreType](#sslcertstoretype-property-snmpmgr-component) | The type of certificate store for this certificate. | | [SSLCertSubjectAltNames](#sslcertsubjectaltnames-property-snmpmgr-component) | Comma-separated lists of alternative subject names for the certificate. | | [SSLCertThumbprintMD5](#sslcertthumbprintmd5-property-snmpmgr-component) | The MD5 hash of the certificate. | | [SSLCertThumbprintSHA1](#sslcertthumbprintsha1-property-snmpmgr-component) | The SHA-1 hash of the certificate. | | [SSLCertThumbprintSHA256](#sslcertthumbprintsha256-property-snmpmgr-component) | The SHA-256 hash of the certificate. | | [SSLCertUsage](#sslcertusage-property-snmpmgr-component) | The text description of UsageFlags . | | [SSLCertUsageFlags](#sslcertusageflags-property-snmpmgr-component) | The flags that show intended use for the certificate. | | [SSLCertVersion](#sslcertversion-property-snmpmgr-component) | The certificate's version number. | | [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) | The subject of the certificate used for client authentication. | | [SSLCertEncoded](#sslcertencoded-property-snmpmgr-component) | The certificate (PEM/Base64 encoded). | | [SSLEnabled](#sslenabled-property-snmpmgr-component) | Whether DTLS is enabled. | | [SSLServerCertEffectiveDate](#sslservercerteffectivedate-property-snmpmgr-component) | The date on which this certificate becomes valid. | | [SSLServerCertExpirationDate](#sslservercertexpirationdate-property-snmpmgr-component) | The date on which the certificate expires. | | [SSLServerCertExtendedKeyUsage](#sslservercertextendedkeyusage-property-snmpmgr-component) | A comma-delimited list of extended key usage identifiers. | | [SSLServerCertFingerprint](#sslservercertfingerprint-property-snmpmgr-component) | The hex-encoded, 16-byte MD5 fingerprint of the certificate. | | [SSLServerCertFingerprintSHA1](#sslservercertfingerprintsha1-property-snmpmgr-component) | The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. | | [SSLServerCertFingerprintSHA256](#sslservercertfingerprintsha256-property-snmpmgr-component) | The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. | | [SSLServerCertIssuer](#sslservercertissuer-property-snmpmgr-component) | The issuer of the certificate. | | [SSLServerCertPrivateKey](#sslservercertprivatekey-property-snmpmgr-component) | The private key of the certificate (if available). | | [SSLServerCertPrivateKeyAvailable](#sslservercertprivatekeyavailable-property-snmpmgr-component) | Whether a PrivateKey is available for the selected certificate. | | [SSLServerCertPrivateKeyContainer](#sslservercertprivatekeycontainer-property-snmpmgr-component) | The name of the PrivateKey container for the certificate (if available). | | [SSLServerCertPublicKey](#sslservercertpublickey-property-snmpmgr-component) | The public key of the certificate. | | [SSLServerCertPublicKeyAlgorithm](#sslservercertpublickeyalgorithm-property-snmpmgr-component) | The textual description of the certificate's public key algorithm. | | [SSLServerCertPublicKeyLength](#sslservercertpublickeylength-property-snmpmgr-component) | The length of the certificate's public key (in bits). | | [SSLServerCertSerialNumber](#sslservercertserialnumber-property-snmpmgr-component) | The serial number of the certificate encoded as a string. | | [SSLServerCertSignatureAlgorithm](#sslservercertsignaturealgorithm-property-snmpmgr-component) | The text description of the certificate's signature algorithm. | | [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) | The name of the certificate store for the client certificate. | | [SSLServerCertStorePassword](#sslservercertstorepassword-property-snmpmgr-component) | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. | | [SSLServerCertStoreType](#sslservercertstoretype-property-snmpmgr-component) | The type of certificate store for this certificate. | | [SSLServerCertSubjectAltNames](#sslservercertsubjectaltnames-property-snmpmgr-component) | Comma-separated lists of alternative subject names for the certificate. | | [SSLServerCertThumbprintMD5](#sslservercertthumbprintmd5-property-snmpmgr-component) | The MD5 hash of the certificate. | | [SSLServerCertThumbprintSHA1](#sslservercertthumbprintsha1-property-snmpmgr-component) | The SHA-1 hash of the certificate. | | [SSLServerCertThumbprintSHA256](#sslservercertthumbprintsha256-property-snmpmgr-component) | The SHA-256 hash of the certificate. | | [SSLServerCertUsage](#sslservercertusage-property-snmpmgr-component) | The text description of UsageFlags . | | [SSLServerCertUsageFlags](#sslservercertusageflags-property-snmpmgr-component) | The flags that show intended use for the certificate. | | [SSLServerCertVersion](#sslservercertversion-property-snmpmgr-component) | The certificate's version number. | | [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) | The subject of the certificate used for client authentication. | | [SSLServerCertEncoded](#sslservercertencoded-property-snmpmgr-component) | The certificate (PEM/Base64 encoded). | | [StoreWalkObjects](#storewalkobjects-property-snmpmgr-component) | Tells the class whether or not to store returned objects. | | [Timeout](#timeout-property-snmpmgr-component) | This property includes the timeout for the class. | | [User](#user-property-snmpmgr-component) | The user name used for SNMPv3 authentication. | | [WalkLimit](#walklimit-property-snmpmgr-component) | The limit of oid's returned in a walk. | ## Method List *The following is the full list of the methods of the component with short descriptions. Click on the links for further details.* | | | | --- | --- | | [Activate](#activate-method-snmpmgr-component) | Activates the class. | | [Config](#config-method-snmpmgr-component) | Sets or retrieves a configuration setting. | | [Deactivate](#deactivate-method-snmpmgr-component) | Deactivates the class. | | [Discover](#discover-method-snmpmgr-component) | Performs SNMPv3 discovery. | | [DoEvents](#doevents-method-snmpmgr-component) | This method processes events from the internal message queue. | | [HashPasswords](#hashpasswords-method-snmpmgr-component) | Hashes all passwords in the cache. | | [Interrupt](#interrupt-method-snmpmgr-component) | This method interrupts the current method. | | [PauseData](#pausedata-method-snmpmgr-component) | This method pauses data reception. | | [ProcessData](#processdata-method-snmpmgr-component) | This method reenables data reception after a call to PauseData . | | [Reset](#reset-method-snmpmgr-component) | Clears the object arrays. | | [SendGetBulkRequest](#sendgetbulkrequest-method-snmpmgr-component) | Send a GetBulkRequest packet. | | [SendGetNextRequest](#sendgetnextrequest-method-snmpmgr-component) | Send GetNextRequest packet. | | [SendGetRequest](#sendgetrequest-method-snmpmgr-component) | Send GetRequest packet. | | [SendInformRequest](#sendinformrequest-method-snmpmgr-component) | Send an InformRequest packet. | | [SendSetRequest](#sendsetrequest-method-snmpmgr-component) | Send Set Request packet. | | [Value](#value-method-snmpmgr-component) | Returns the value corresponding to an OID. | | [Walk](#walk-method-snmpmgr-component) | Does an SNMP walk starting with the specified oid. | ## Event List *The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.* | | | | --- | --- | | [BadPacket](#badpacket-event-snmpmgr-component) | Fired for erroneous and/or malformed messages. | | [Connected](#connected-event-snmpmgr-component) | Fired immediately after a connection completes (or fails). | | [Disconnected](#disconnected-event-snmpmgr-component) | Fired when a connection is closed. | | [DiscoveryRequest](#discoveryrequest-event-snmpmgr-component) | Fired when an SNMPv3 discovery packet is received. | | [DiscoveryResponse](#discoveryresponse-event-snmpmgr-component) | Fired when an SNMPv3 discovery response is received. | | [Error](#error-event-snmpmgr-component) | Fired when information is available about errors during data delivery. | | [HashPassword](#hashpassword-event-snmpmgr-component) | Fired before and after a password is hashed. | | [InformRequest](#informrequest-event-snmpmgr-component) | Fired when an InformRequest packet is received. | | [PacketTrace](#packettrace-event-snmpmgr-component) | Fired for every packet sent or received. | | [ReadyToSend](#readytosend-event-snmpmgr-component) | Fired when the class is ready to send data. | | [Report](#report-event-snmpmgr-component) | Fired when a Report packet is received. | | [Response](#response-event-snmpmgr-component) | Fired when a GetResponse packet is received. | | [SSLClientAuthentication](#sslclientauthentication-event-snmpmgr-component) | Fired when the client presents its credentials to the server. | | [SSLServerAuthentication](#sslserverauthentication-event-snmpmgr-component) | Fires when connecting to the server. | | [SSLStatus](#sslstatus-event-snmpmgr-component) | Shows the progress of the secure connection. | | [Trap](#trap-event-snmpmgr-component) | Fired when a SNMP trap packet is received. | ## Config Settings *The following is a list of config settings for the component with short descriptions. Click on the links for further details.* | | | | --- | --- | | [AllowSingleStepDiscovery](#AllowSingleStepDiscovery) | Whether to allow discovery to be completed in a single step. | | [CheckMessageOrigin](#CheckMessageOrigin) | Whether to match the origin IP address when receiving responses. | | [CheckSNMPVersion](#CheckSNMPVersion) | Whether to check the version of incoming packets. | | [CompatibilityMode](#CompatibilityMode) | Whether to operate the class in a specific compatibility mode. | | [ContextEngineId](#ContextEngineId) | Sets the context engine id of the SNMP entity. | | [ContextName](#ContextName) | Sets the context name of the SNMP entity. | | [DecryptLogPackets](#DecryptLogPackets) | Whether to decrypt logged packets. | | [ForceLocalPort](#ForceLocalPort) | Forces the class to bind to a specific port. | | [IgnoreDuplicateResponse](#IgnoreDuplicateResponse) | Whether to ignore duplicate responses. | | [IgnorePortMismatch](#IgnorePortMismatch) | Whether to check if the port matches when a response is received. | | [IncomingContextEngineId](#IncomingContextEngineId) | The engine Id of the received packet. | | [IncomingContextName](#IncomingContextName) | The context name of the received packet. | | [MsgMaxSize](#MsgMaxSize) | The maximum supported message size. | | [SourceAddress](#SourceAddress) | The source address of the received packet. | | [SourcePort](#SourcePort) | The source port of the received packet. | | [TimeoutInMilliseconds](#TimeoutInMilliseconds) | The timeout is treated as milliseconds. | | [WalkInsideRange](#WalkInsideRange) | Stops the SNMP walk if the OID value returned from an agent is outside the table. | | [WalkStartOID](#WalkStartOID) | Specifies the OID to be used when a Walk is performed. | | [CaptureIPPacketInfo](#CaptureIPPacketInfo) | Used to capture the packet information. | | [DelayHostResolution](#DelayHostResolution) | Whether the hostname is resolved when RemoteHost is set. | | [DestinationAddress](#DestinationAddress) | Used to get the destination address from the packet information. | | [DontFragment](#DontFragment) | Used to set the Don't Fragment flag of outgoing packets. | | [LocalHost](#LocalHost) | The name of the local host through which connections are initiated or accepted. | | [LocalPort](#LocalPort) | The port in the local host where the class binds. | | [MaxPacketSize](#MaxPacketSize) | The maximum length of the packets that can be received. | | [QOSDSCPValue](#QOSDSCPValue) | Used to specify an arbitrary QOS/DSCP setting (optional). | | [QOSTrafficType](#QOSTrafficType) | Used to specify QOS/DSCP settings (optional). | | [ShareLocalPort](#ShareLocalPort) | If set to True, allows more than one instance of the class to be active on the same local port. | | [UseConnection](#UseConnection) | Determines whether to use a connected socket. | | [UseIPv6](#UseIPv6) | Whether or not to use IPv6. | | [AbsoluteTimeout](#AbsoluteTimeout) | Determines whether timeouts are inactivity timeouts or absolute timeouts. | | [FirewallData](#FirewallData) | Used to send extra data to the firewall. | | [InBufferSize](#InBufferSize) | The size in bytes of the incoming queue of the socket. | | [OutBufferSize](#OutBufferSize) | The size in bytes of the outgoing queue of the socket. | | [BuildInfo](#BuildInfo) | Information about the product's build. | | [CodePage](#CodePage) | The system code page used for Unicode to Multibyte translations. | | [LicenseInfo](#LicenseInfo) | Information about the current license. | | [MaskSensitiveData](#MaskSensitiveData) | Whether sensitive data is masked in log messages. | | [UseInternalSecurityAPI](#UseInternalSecurityAPI) | Whether or not to use the system security libraries or an internal implementation. | # AcceptData Property ([SNMPMgr](#snmpmgr-component) Component) Enables or disables data reception. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) AcceptData() (bool, error) ``` ## Default Value true ## Remarks Setting the property to False temporarily disables data reception. Setting the property to True re-enables data reception. This property is read-only. ## Data Type **bool** # Active Property ([SNMPMgr](#snmpmgr-component) Component) Indicates whether the class is active. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Active() (bool, error) ``` ## Default Value false ## Remarks This property indicates whether the struct is currently active and can send or receive data. The struct will be automatically activated if it is not already and you attempt to perform an operation which requires the struct to be active. Use the [Activate](#activate-method-snmpmgr-component) and [Deactivate](#deactivate-method-snmpmgr-component) methods to control whether the struct is active. This property is read-only. ## Data Type **bool** # AuthenticationPassword Property ([SNMPMgr](#snmpmgr-component) Component) The password used for SNMPv3 authentication. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) AuthenticationPassword() (string, error)func (obj *SNMPMgr) SetAuthenticationPassword(value string) error ``` ## Default Value "" ## Remarks Every time [EncryptionPassword](#encryptionpassword-property-snmpmgr-component), AuthenticationPassword, or [RemoteEngineId](#remoteengineid-property-snmpmgr-component) are set, a localized key is computed automatically, and cached internally. ## Data Type **string** # AuthenticationProtocol Property ([SNMPMgr](#snmpmgr-component) Component) The authentication protocol used for SNMPv3 packets. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) AuthenticationProtocol() (int32, error)func (obj *SNMPMgr) SetAuthenticationProtocol(value int32) error ``` ## Possible Values ```text 1 // HMACMD5962 // HMACSHA963 // HMAC192SHA2564 // HMAC384SHA5125 // HMAC128SHA2246 // HMAC256SHA384 ``` ## Default Value 1 ## Remarks This property defines the authentication protocol used when [SNMPVersion](#snmpversion-property-snmpmgr-component) is set to snmpverV3. Possible values are: - 1 (HMAC-MD5-96 - default) - 2 (HMAC-SHA-96) - 3 (HMAC-192-SHA-256) - 4 (HMAC-384-SHA-512) - 5 (HMAC-128-SHA-224) - 6 (HMAC-256-SHA-384) ## Data Type **int32** # Community Property ([SNMPMgr](#snmpmgr-component) Component) The community string used to authenticate SNMP packets. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Community() (string, error)func (obj *SNMPMgr) SetCommunity(value string) error ``` ## Default Value "public" ## Remarks Must match the community name that is specified on the agent. Typical values are "public" or "private". This property is used for all SNMP packets sent by the struct. ## Data Type **string** # EncryptionAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The encryption algorithm used for SNMPv3 packets. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) EncryptionAlgorithm() (int32, error)func (obj *SNMPMgr) SetEncryptionAlgorithm(value int32) error ``` ## Possible Values ```text 1 // DES2 // AES3 // 3DES4 // AES1925 // AES256 ``` ## Default Value 1 ## Remarks In order to use encryption, you must set the [EncryptionPassword](#encryptionpassword-property-snmpmgr-component) property. The supported algorithms for encryption are: | | | | --- | --- | | DES (1) | Data Encryption Standard. | | AES (2) | Advanced Encryption Standard with key length of 128. | | 3DES (3) | Triple Data Encryption Standard. | | AES192 (4) | Advanced Encryption Standard with key length of 192. | | AES256 (5) | Advanced Encryption Standard with key length of 256. | ## Data Type **int32** # EncryptionPassword Property ([SNMPMgr](#snmpmgr-component) Component) The password used for SNMPv3 privacy. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) EncryptionPassword() (string, error)func (obj *SNMPMgr) SetEncryptionPassword(value string) error ``` ## Default Value "" ## Remarks Every time EncryptionPassword, [AuthenticationPassword](#authenticationpassword-property-snmpmgr-component), or [RemoteEngineId](#remoteengineid-property-snmpmgr-component) are set, a localized key is computed automatically, and cached internally. ## Data Type **string** # ErrorDescription Property ([SNMPMgr](#snmpmgr-component) Component) Description of the status code for the last SNMP packet received by the class. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ErrorDescription() (string, error) ``` ## Default Value "0" ## Remarks Please refer to the [ErrorStatus](#errorstatus-property-snmpmgr-component) property for more information. This property is read-only. ## Data Type **string** # ErrorIndex Property ([SNMPMgr](#snmpmgr-component) Component) Index of the first variable (object) that caused an error from the last SNMP response. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ErrorIndex() (int32, error) ``` ## Default Value 0 ## Remarks This property is used in conjunction with the [ErrorStatus](#errorstatus-property-snmpmgr-component) property, and refers to the object that caused the error reported in the last SNMP response. This value is parsed directly from the SNMP response, which will be a one-based value, so a value of i here maps to index i-1 in the Objects collection. The ErrorIndex property has no meaning when the [ErrorStatus](#errorstatus-property-snmpmgr-component) property is 0 (no error). This property is read-only. ## Data Type **int32** # ErrorStatus Property ([SNMPMgr](#snmpmgr-component) Component) Status code for the last SNMP packet received by the class. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ErrorStatus() (int32, error) ``` ## Default Value 0 ## Remarks This property is used in conjunction with the [ErrorIndex](#errorindex-property-snmpmgr-component) property, which denotes the index of the variable in error. The [ErrorDescription](#errordescription-property-snmpmgr-component) property provides a textual description of the error. The following is a list of valid SNMP status code values: | | | | --- | --- | | 0 (noError) | No error. | | 1 (tooBig) | The response cannot fit in a single SNMP message. | | 2 (noSuchName) | Variable does not exist. | | 3 (badValue) | Invalid value or syntax. | | 4 (readOnly) | Variable is read-only. | | 5 (genError) | Other error (SNMPv1). | | 6 (noAccess) | Access denied. | | 7 (wrongType) | Wrong object type. | | 8 (wrongLength) | Wrong length. | | 9 (wrongEncoding) | Wrong encoding. | | 10 (wrongValue) | Wrong value. | | 11 (noCreation) | No creation. | | 12 (inconsistentValue) | Inconsistent value. | | 13 (resourceUnavailable) | Resource unavailable. | | 14 (commitFailed) | Commit failed. | | 15 (undoFailed) | Undo failed. | | 16 (authorizationError) | Authorization error. | | 17 (notWritable) | Variable is not writable. | | 18 (inconsistentName) | Inconsistent name. | The *ErrorIndex* parameter indicates the index of the first variable (object) that caused an error. The default value is 0. Variable indexes start with 0. *ErrorIndex* has no meaning when *ErrorStatus* is 0 (no error). The default value is 0 (no error). This property is read-only. ## Data Type **int32** # LocalEngineId Property ([SNMPMgr](#snmpmgr-component) Component) The Engine Id of the SNMP Manager. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) LocalEngineId() ([]byte, error)func (obj *SNMPMgr) SetLocalEngineId(value []byte) error ``` ## Default Value "" ## Remarks This property is only used for SNMPv3 packets (when [SNMPVersion](#snmpversion-property-snmpmgr-component) is 3). ## Data Type **[]byte** # LocalHost Property ([SNMPMgr](#snmpmgr-component) Component) The name of the local host or user-assigned IP interface through which connections are initiated or accepted. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) LocalHost() (string, error)func (obj *SNMPMgr) SetLocalHost(value string) error ``` ## Default Value "" ## Remarks This property contains the name of the local host as obtained by the *gethostname()* system call, or if the user has assigned an IP address, the value of that address. In multihomed hosts (machines with more than one IP interface) setting LocalHost to the IP address of an interface will make the struct initiate connections (or accept in the case of server structs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used. If the struct is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface). NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window. ## Data Type **string** # LocalPort Property ([SNMPMgr](#snmpmgr-component) Component) The port in the local host where the SNMP Manager is bound to. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) LocalPort() (int32, error)func (obj *SNMPMgr) SetLocalPort(value int32) error ``` ## Default Value 0 ## Remarks The LocalPort property must be set before the struct is activated ([Active](#active-property-snmpmgr-component) is set to True). It instructs the struct to bind to a specific port (or communication endpoint) in the local machine. The default port is 0 (random port). If you would like to receive traps, set LocalPort to 162 (standard trap port). However, it is recommended that the [SNMPTrapMgr](SNMPTrapMgr.md#SNMPTrapMgr) struct be used for listening to traps, because [SNMPMgr](#snmpmgr-component) is limited to receiving SNMPv3 traps from a single agent only. [SNMPTrapMgr](SNMPTrapMgr.md#SNMPTrapMgr) does not have this limitation. LocalPort cannot be changed once the struct is [Active](#active-property-snmpmgr-component). Any attempt to set the LocalPort property when the struct is [Active](#active-property-snmpmgr-component) will generate an error. NOTE: on macOS and iOS, root permissions are required to set LocalPort to any value below 1024. ## Data Type **int32** # ObjCount Property ([SNMPMgr](#snmpmgr-component) Component) The number of records in the Obj arrays. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ObjCount() (int32, error)func (obj *SNMPMgr) SetObjCount(value int32) error ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [ObjId](#objid-property-snmpmgr-component) - [ObjType](#objtype-property-snmpmgr-component) - [ObjTypeString](#objtypestring-property-snmpmgr-component) - [ObjValue](#objvalue-property-snmpmgr-component) The array indices start at *0* and end at *ObjCount - 1*. ## Data Type **int32** # ObjType Property ([SNMPMgr](#snmpmgr-component) Component) The current object's type. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ObjType(ObjIndex int32) (int32, error)func (obj *SNMPMgr) SetObjType(ObjIndex int32, value int32) error ``` ## Possible Values ```text 2 // Integer4 // OctetString5 // Null6 // ObjectId64 // IPAddress65 // Counter3266 // Gauge3267 // TimeTicks68 // Opaque69 // NSAP70 // Counter6471 // UnsignedInteger32128 // NoSuchObject129 // NoSuchInstance130 // EndOfMibView ``` ## Default Value 5 ## Remarks The current object's type. The default type is NULL (5). The corresponding object id and value are specified by the [ObjOid](#SNMPMgr_p_ObjOid) and [ObjValue](#objvalue-property-snmpmgr-component) properties. Possible object type values include: | | | | --- | --- | | otInteger (2) | 2 | | otOctetString (4) | 4 | | otNull (5) | 5 | | otObjectID (6) | 6 | | otIPAddress (64) | 64 | | otCounter32 (65) | 65 | | otGauge32 (66) | 66 | | otTimeTicks (67) | 67 | | otOpaque (68) | 68 | | otNSAP (69) | 69 | | otCounter64 (70) | 70 | | otUnsignedInteger32 (71) | 71 | The struct also supports the following artificial object values used to designate error conditions: | | | | --- | --- | | otNoSuchObject (128) | No such object error. | | otNoSuchInstance (129) | No such instance error. | | otEndOfMibView (130) | End of MIB View error. | The *ObjIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [ObjCount](#objcount-property-snmpmgr-component) property. ## Data Type **int32** # ObjId Property ([SNMPMgr](#snmpmgr-component) Component) The current object's id which is encoded as a string of numbers separated by periods. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ObjId(ObjIndex int32) (string, error)func (obj *SNMPMgr) SetObjId(ObjIndex int32, value string) error ``` ## Default Value "" ## Remarks The current object's id which is encoded as a string of numbers separated by periods. For instance: "1.3.6.1.2.1.1.1.0" (OID for "system description"). The corresponding object type and value (if any) are specified by the [ObjectType](#SNMPMgr_p_ObjectType) and [ObjValue](#objvalue-property-snmpmgr-component) properties. **Example** ```text SNMPControl.ObjCount = 1 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" ``` The *ObjIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [ObjCount](#objcount-property-snmpmgr-component) property. ## Data Type **string** # ObjTypeString Property ([SNMPMgr](#snmpmgr-component) Component) A string representation of the current object's ObjectType . ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ObjTypeString(ObjIndex int32) (string, error) ``` ## Default Value "" ## Remarks A string representation of the current object's [ObjectType](#SNMPMgr_p_ObjectType). The corresponding object id and value are specified by the [ObjOid](#SNMPMgr_p_ObjOid) and [ObjValue](#objvalue-property-snmpmgr-component) properties. The *ObjIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [ObjCount](#objcount-property-snmpmgr-component) property. This property is read-only. ## Data Type **string** # ObjValue Property ([SNMPMgr](#snmpmgr-component) Component) The current object's value. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ObjValue(ObjIndex int32) ([]byte, error)func (obj *SNMPMgr) SetObjValue(ObjIndex int32, value []byte) error ``` ## Default Value "" ## Remarks The current object's value. The corresponding object id and type are specified by the [ObjOid](#SNMPMgr_p_ObjOid) and [ObjectType](#SNMPMgr_p_ObjectType) properties. **Example** ```text SNMPControl.ObjCount = 1 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" SNMPControl.ObjValue(0) = "New Value" ``` The *ObjIndex* parameter specifies the index of the item in the array. The size of the array is controlled by the [ObjCount](#objcount-property-snmpmgr-component) property. ## Data Type **[]byte** # RemoteEngineBoots Property ([SNMPMgr](#snmpmgr-component) Component) The remote engine boots (SNMPv3). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RemoteEngineBoots() (int32, error)func (obj *SNMPMgr) SetRemoteEngineBoots(value int32) error ``` ## Default Value 0 ## Remarks This property is used in conjunction with the [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) property. Please refer to the description of the [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) property, and the [Discover](#discover-method-snmpmgr-component) method for further information. ## Data Type **int32** # RemoteEngineId Property ([SNMPMgr](#snmpmgr-component) Component) The Engine Id of the remote agent. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RemoteEngineId() ([]byte, error)func (obj *SNMPMgr) SetRemoteEngineId(value []byte) error ``` ## Default Value "" ## Remarks This property is only used for SNMPv3 packets (see [SNMPVersion](#snmpversion-property-snmpmgr-component)), and is reset every time [RemoteHost](#remotehost-property-snmpmgr-component) or [RemotePort](#remoteport-property-snmpmgr-component) changes. RemoteEngineId is normally discovered through the [Discover](#discover-method-snmpmgr-component) method. However, by manually supplying a value for the property, RemoteEngineId discovery step may be eliminated, thus avoiding the extra roundtrip to the agent ([RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component) and [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) are also required for [User](#user-property-snmpmgr-component) authentication - please refer to the [Discover](#discover-method-snmpmgr-component) method for more information). ## Data Type **[]byte** # RemoteEngineTime Property ([SNMPMgr](#snmpmgr-component) Component) The remote engine time (SNMPv3). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RemoteEngineTime() (int32, error)func (obj *SNMPMgr) SetRemoteEngineTime(value int32) error ``` ## Default Value 0 ## Remarks RemoteEngineTime is used by SNMPv3 authentication to ensure timeliness of requests, and avoid replay attacks. The value of RemoteEngineTime is provided as what is expected to be the current value of the remote engine clock based on a cached time differential between the remote engine clock and the local engine time obtained during the discovery process (see [Discover](#discover-method-snmpmgr-component)). This property is used in conjunction with [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component). Please refer to the [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component) property and the [Discover](#discover-method-snmpmgr-component) method for more information. ## Data Type **int32** # RemoteHost Property ([SNMPMgr](#snmpmgr-component) Component) The address of the remote host. Domain names are resolved to IP addresses. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RemoteHost() (string, error)func (obj *SNMPMgr) SetRemoteHost(value string) error ``` ## Default Value "" ## Remarks The RemoteHost property specifies the IP address (IP number in dotted internet format) or Domain Name of the host SNMP requests or traps are sent to. If RemoteHost is set to 255.255.255.255, the struct broadcasts data on the local subnet. If the RemoteHost property is set to a Domain Name, a DNS request is initiated and upon successful termination of the request, the RemoteHost property is set to the corresponding address. If the search is not successful, an error is returned. ## Data Type **string** # RemotePort Property ([SNMPMgr](#snmpmgr-component) Component) The port where the remote SNMP agent is listening. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RemotePort() (int32, error)func (obj *SNMPMgr) SetRemotePort(value int32) error ``` ## Default Value 161 ## Remarks The RemotePort is the port on the [RemoteHost](#remotehost-property-snmpmgr-component) to send SNMP requests to. A valid port number (a value between 1 and 65535) is required. The default value is 161. ## Data Type **int32** # RequestId Property ([SNMPMgr](#snmpmgr-component) Component) The request-id to mark outgoing packets with. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) RequestId() (int32, error)func (obj *SNMPMgr) SetRequestId(value int32) error ``` ## Default Value 1 ## Remarks If a custom value is needed for RequestId, the property must be set before sending the request. The struct increments RequestId automatically after sending each packet. ## Data Type **int32** # SNMPVersion Property ([SNMPMgr](#snmpmgr-component) Component) Version of SNMP used for outgoing requests. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SNMPVersion() (int32, error)func (obj *SNMPMgr) SetSNMPVersion(value int32) error ``` ## Possible Values ```text 1 // V12 // V2c3 // V3 ``` ## Default Value 2 ## Remarks This property takes one of the following values: | | | | --- | --- | | snmpverV1 (1) | SNMP Version 1. | | snmpverV2c (2) | SNMP Version 2c. | | snmpverV3 (3) | SNMP Version 3. | ## Data Type **int32** # SSLAcceptServerCertEffectiveDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which this certificate becomes valid. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertEffectiveDate() (string, error) ``` ## Default Value "" ## Remarks The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2000 15:00:00. This property is read-only. ## Data Type **string** # SSLAcceptServerCertExpirationDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which the certificate expires. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertExpirationDate() (string, error) ``` ## Default Value "" ## Remarks The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2001 15:00:00. This property is read-only. ## Data Type **string** # SSLAcceptServerCertExtendedKeyUsage Property ([SNMPMgr](#snmpmgr-component) Component) A comma-delimited list of extended key usage identifiers. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertExtendedKeyUsage() (string, error) ``` ## Default Value "" ## Remarks A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs). This property is read-only. ## Data Type **string** # SSLAcceptServerCertFingerprint Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 16-byte MD5 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertFingerprint() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02* This property is read-only. ## Data Type **string** # SSLAcceptServerCertFingerprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertFingerprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84* This property is read-only. ## Data Type **string** # SSLAcceptServerCertFingerprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertFingerprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53* This property is read-only. ## Data Type **string** # SSLAcceptServerCertIssuer Property ([SNMPMgr](#snmpmgr-component) Component) The issuer of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertIssuer() (string, error) ``` ## Default Value "" ## Remarks The issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate. This property is read-only. ## Data Type **string** # SSLAcceptServerCertPrivateKey Property ([SNMPMgr](#snmpmgr-component) Component) The private key of the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPrivateKey() (string, error) ``` ## Default Value "" ## Remarks The private key of the certificate (if available). The key is provided as PEM/Base64-encoded data. NOTE: The [SSLAcceptServerCertPrivateKey](#sslacceptservercertprivatekey-property-snmpmgr-component) may be available but not exportable. In this case, [SSLAcceptServerCertPrivateKey](#sslacceptservercertprivatekey-property-snmpmgr-component) returns an empty string. This property is read-only. ## Data Type **string** # SSLAcceptServerCertPrivateKeyAvailable Property ([SNMPMgr](#snmpmgr-component) Component) Whether a PrivateKey is available for the selected certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPrivateKeyAvailable() (bool, error) ``` ## Default Value false ## Remarks Whether a [SSLAcceptServerCertPrivateKey](#sslacceptservercertprivatekey-property-snmpmgr-component) is available for the selected certificate. If [SSLAcceptServerCertPrivateKeyAvailable](#sslacceptservercertprivatekeyavailable-property-snmpmgr-component) is True, the certificate may be used for authentication purposes (e.g., server authentication). This property is read-only. ## Data Type **bool** # SSLAcceptServerCertPrivateKeyContainer Property ([SNMPMgr](#snmpmgr-component) Component) The name of the PrivateKey container for the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPrivateKeyContainer() (string, error) ``` ## Default Value "" ## Remarks The name of the [SSLAcceptServerCertPrivateKey](#sslacceptservercertprivatekey-property-snmpmgr-component) container for the certificate (if available). This functionality is available only on Windows platforms. This property is read-only. ## Data Type **string** # SSLAcceptServerCertPublicKey Property ([SNMPMgr](#snmpmgr-component) Component) The public key of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPublicKey() (string, error) ``` ## Default Value "" ## Remarks The public key of the certificate. The key is provided as PEM/Base64-encoded data. This property is read-only. ## Data Type **string** # SSLAcceptServerCertPublicKeyAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The textual description of the certificate's public key algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPublicKeyAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLAcceptServerCertPublicKeyLength Property ([SNMPMgr](#snmpmgr-component) Component) The length of the certificate's public key (in bits). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertPublicKeyLength() (int32, error) ``` ## Default Value 0 ## Remarks The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048. This property is read-only. ## Data Type **int32** # SSLAcceptServerCertSerialNumber Property ([SNMPMgr](#snmpmgr-component) Component) The serial number of the certificate encoded as a string. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertSerialNumber() (string, error) ``` ## Default Value "" ## Remarks The serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number. This property is read-only. ## Data Type **string** # SSLAcceptServerCertSignatureAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The text description of the certificate's signature algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertSignatureAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLAcceptServerCertStore Property ([SNMPMgr](#snmpmgr-component) Component) The name of the certificate store for the client certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertStore() ([]byte, error)func (obj *SNMPMgr) SetSSLAcceptServerCertStore(value []byte) error ``` ## Default Value "MY" ## Remarks The name of the certificate store for the client certificate. The [SSLAcceptServerCertStoreType](#sslacceptservercertstoretype-property-snmpmgr-component) property denotes the type of the certificate store specified by [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component). If the store is password-protected, specify the password in [SSLAcceptServerCertStorePassword](#sslacceptservercertstorepassword-property-snmpmgr-component). [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) is used in conjunction with the [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) property to specify client certificates. If [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) has a value, and [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) or [SSLAcceptServerCertEncoded](#sslacceptservercertencoded-property-snmpmgr-component) is set, a search for a certificate is initiated. Please see the [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) property for details. Designations of certificate stores are platform dependent. The following designations are the most common User and Machine certificate stores in Windows: | | | | --- | --- | | MY | A certificate store holding personal certificates with their associated private keys. | | CA | Certifying authority certificates. | | ROOT | Root certificates. | When the certificate store type is *cstPFXFile*, this property must be set to the name of the file. When the type is *cstPFXBlob*, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store). ## Data Type **[]byte** # SSLAcceptServerCertStorePassword Property ([SNMPMgr](#snmpmgr-component) Component) If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertStorePassword() (string, error)func (obj *SNMPMgr) SetSSLAcceptServerCertStorePassword(value string) error ``` ## Default Value "" ## Remarks If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. ## Data Type **string** # SSLAcceptServerCertStoreType Property ([SNMPMgr](#snmpmgr-component) Component) The type of certificate store for this certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertStoreType() (int32, error)func (obj *SNMPMgr) SetSSLAcceptServerCertStoreType(value int32) error ``` ## Possible Values ```text 0 // User1 // Machine2 // PFXFile3 // PFXBlob4 // JKSFile5 // JKSBlob6 // PEMKeyFile7 // PEMKeyBlob8 // PublicKeyFile9 // PublicKeyBlob10 // SSHPublicKeyBlob11 // P7BFile12 // P7BBlob13 // SSHPublicKeyFile14 // PPKFile15 // PPKBlob16 // XMLFile17 // XMLBlob18 // JWKFile19 // JWKBlob20 // SecurityKey21 // BCFKSFile22 // BCFKSBlob23 // PKCS1199 // Auto ``` ## Default Value 0 ## Remarks The type of certificate store for this certificate. The struct supports both public and private keys in a variety of formats. When the *cstAuto* value is used, the struct will automatically determine the type. This property can take one of the following values: ```csharp sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll", "123456", // PIN "CN=cert_subject"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` ```csharp certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; // PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` | | | | --- | --- | | 0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user. NOTE: This store type is not available in Java. | | 1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store. NOTE: This store type is not available in Java. | | 2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. | | 3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. | | 4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates. NOTE: This store type is only available in Java. | | 5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format. NOTE: This store type is only available in Java. | | 6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. | | 7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. | | 8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. | | 9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. | | 10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. | | 11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. | | 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. | | 13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. | | 14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). | | 15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). | | 16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. | | 17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. | | 18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). | | 19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). | | 21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). NOTE: This store type is only available in Java and .NET. | | 22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. NOTE: This store type is only available in Java and .NET. | | 23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface. To use a security key, create a new [Certificate](#Type_Certificate) object and pass cstPKCS11 as the [SSLAcceptServerCertStoreType](#sslacceptservercertstoretype-property-snmpmgr-component), the full path of the PKCS#11 DLL as the [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component), and the PIN as the [SSLAcceptServerCertStorePassword](#sslacceptservercertstorepassword-property-snmpmgr-component). Code Example. SSH Authentication with Security Key (without CertMgr): Alternatively, collect the necessary data using the [CertMgr](#CertMgr) struct by calling the [ListStoreCertificates](#CertMgr_m_ListStoreCertificates) method after setting the corresponding properties accordingly. The certificate information returned in the [CertList](#CertMgr_e_CertList) event's CertEncoded parameter may be saved for later use. When using a certificate obtained with this approach, pass the previously saved security key information as the [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) and set [SSLAcceptServerCertStorePassword](#sslacceptservercertstorepassword-property-snmpmgr-component) to the PIN. Code Example. SSH Authentication with Security Key (with CertMgr): | | 99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. | ## Data Type **int32** # SSLAcceptServerCertSubjectAltNames Property ([SNMPMgr](#snmpmgr-component) Component) Comma-separated lists of alternative subject names for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertSubjectAltNames() (string, error) ``` ## Default Value "" ## Remarks Comma-separated lists of alternative subject names for the certificate. This property is read-only. ## Data Type **string** # SSLAcceptServerCertThumbprintMD5 Property ([SNMPMgr](#snmpmgr-component) Component) The MD5 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertThumbprintMD5() (string, error) ``` ## Default Value "" ## Remarks The MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLAcceptServerCertThumbprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-1 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertThumbprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLAcceptServerCertThumbprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-256 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertThumbprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLAcceptServerCertUsage Property ([SNMPMgr](#snmpmgr-component) Component) The text description of UsageFlags . ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertUsage() (string, error) ``` ## Default Value "" ## Remarks The text description of [SSLAcceptServerCertUsageFlags](#sslacceptservercertusageflags-property-snmpmgr-component). This value will be one or more of the following strings and will be separated by commas: - Digital Signature - Non-Repudiation - Key Encipherment - Data Encipherment - Key Agreement - Certificate Signing - CRL Signing - Encipher Only If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names. This property is read-only. ## Data Type **string** # SSLAcceptServerCertUsageFlags Property ([SNMPMgr](#snmpmgr-component) Component) The flags that show intended use for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertUsageFlags() (int32, error) ``` ## Default Value 0 ## Remarks The flags that show intended use for the certificate. The value of [SSLAcceptServerCertUsageFlags](#sslacceptservercertusageflags-property-snmpmgr-component) is a combination of the following flags: | | | | --- | --- | | 0x80 | Digital Signature | | 0x40 | Non-Repudiation | | 0x20 | Key Encipherment | | 0x10 | Data Encipherment | | 0x08 | Key Agreement | | 0x04 | Certificate Signing | | 0x02 | CRL Signing | | 0x01 | Encipher Only | Please see the [SSLAcceptServerCertUsage](#sslacceptservercertusage-property-snmpmgr-component) property for a text representation of [SSLAcceptServerCertUsageFlags](#sslacceptservercertusageflags-property-snmpmgr-component). This functionality currently is not available when the provider is OpenSSL. This property is read-only. ## Data Type **int32** # SSLAcceptServerCertVersion Property ([SNMPMgr](#snmpmgr-component) Component) The certificate's version number. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertVersion() (string, error) ``` ## Default Value "" ## Remarks The certificate's version number. The possible values are the strings "V1", "V2", and "V3". This property is read-only. ## Data Type **string** # SSLAcceptServerCertSubject Property ([SNMPMgr](#snmpmgr-component) Component) The subject of the certificate used for client authentication. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertSubject() (string, error)func (obj *SNMPMgr) SetSSLAcceptServerCertSubject(value string) error ``` ## Default Value "" ## Remarks The subject of the certificate used for client authentication. This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject. If a matching certificate is found, the property is set to the full subject of the matching certificate. If an exact match is not found, the store is searched for subjects containing the value of the property. If a match is still not found, the property is set to an empty string, and no certificate is selected. The special value "*" picks a random certificate in the certificate store. The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=example@email.com". Common fields and their meanings are as follows: | Field | Meaning | | --- | --- | | CN | Common Name. This is commonly a hostname like www.server.com. | | O | Organization | | OU | Organizational Unit | | L | Locality | | S | State | | C | Country | | E | Email Address | If a field value contains a comma, it must be quoted. ## Data Type **string** # SSLAcceptServerCertEncoded Property ([SNMPMgr](#snmpmgr-component) Component) The certificate (PEM/Base64 encoded). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAcceptServerCertEncoded() ([]byte, error)func (obj *SNMPMgr) SetSSLAcceptServerCertEncoded(value []byte) error ``` ## Default Value "" ## Remarks The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) and [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) properties also may be used to specify a certificate. When [SSLAcceptServerCertEncoded](#sslacceptservercertencoded-property-snmpmgr-component) is set, a search is initiated in the current [SSLAcceptServerCertStore](#sslacceptservercertstore-property-snmpmgr-component) for the private key of the certificate. If the key is found, [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) is updated to reflect the full subject of the selected certificate; otherwise, [SSLAcceptServerCertSubject](#sslacceptservercertsubject-property-snmpmgr-component) is set to an empty string. ## Data Type **[]byte** # SSLAuthenticateClients Property ([SNMPMgr](#snmpmgr-component) Component) If set to True, the server asks the client(s) for a certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLAuthenticateClients() (bool, error)func (obj *SNMPMgr) SetSSLAuthenticateClients(value bool) error ``` ## Default Value false ## Remarks This property is used in conjunction with the [SSLClientAuthentication](#sslclientauthentication-event-snmpmgr-component) event. Please refer to the documentation of the [SSLClientAuthentication](#sslclientauthentication-event-snmpmgr-component) event for details. ## Data Type **bool** # SSLCertEffectiveDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which this certificate becomes valid. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertEffectiveDate() (string, error) ``` ## Default Value "" ## Remarks The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2000 15:00:00. This property is read-only. ## Data Type **string** # SSLCertExpirationDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which the certificate expires. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertExpirationDate() (string, error) ``` ## Default Value "" ## Remarks The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2001 15:00:00. This property is read-only. ## Data Type **string** # SSLCertExtendedKeyUsage Property ([SNMPMgr](#snmpmgr-component) Component) A comma-delimited list of extended key usage identifiers. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertExtendedKeyUsage() (string, error) ``` ## Default Value "" ## Remarks A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs). This property is read-only. ## Data Type **string** # SSLCertFingerprint Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 16-byte MD5 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertFingerprint() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02* This property is read-only. ## Data Type **string** # SSLCertFingerprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertFingerprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84* This property is read-only. ## Data Type **string** # SSLCertFingerprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertFingerprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53* This property is read-only. ## Data Type **string** # SSLCertIssuer Property ([SNMPMgr](#snmpmgr-component) Component) The issuer of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertIssuer() (string, error) ``` ## Default Value "" ## Remarks The issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate. This property is read-only. ## Data Type **string** # SSLCertPrivateKey Property ([SNMPMgr](#snmpmgr-component) Component) The private key of the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPrivateKey() (string, error) ``` ## Default Value "" ## Remarks The private key of the certificate (if available). The key is provided as PEM/Base64-encoded data. NOTE: The [SSLCertPrivateKey](#sslcertprivatekey-property-snmpmgr-component) may be available but not exportable. In this case, [SSLCertPrivateKey](#sslcertprivatekey-property-snmpmgr-component) returns an empty string. This property is read-only. ## Data Type **string** # SSLCertPrivateKeyAvailable Property ([SNMPMgr](#snmpmgr-component) Component) Whether a PrivateKey is available for the selected certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPrivateKeyAvailable() (bool, error) ``` ## Default Value false ## Remarks Whether a [SSLCertPrivateKey](#sslcertprivatekey-property-snmpmgr-component) is available for the selected certificate. If [SSLCertPrivateKeyAvailable](#sslcertprivatekeyavailable-property-snmpmgr-component) is True, the certificate may be used for authentication purposes (e.g., server authentication). This property is read-only. ## Data Type **bool** # SSLCertPrivateKeyContainer Property ([SNMPMgr](#snmpmgr-component) Component) The name of the PrivateKey container for the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPrivateKeyContainer() (string, error) ``` ## Default Value "" ## Remarks The name of the [SSLCertPrivateKey](#sslcertprivatekey-property-snmpmgr-component) container for the certificate (if available). This functionality is available only on Windows platforms. This property is read-only. ## Data Type **string** # SSLCertPublicKey Property ([SNMPMgr](#snmpmgr-component) Component) The public key of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPublicKey() (string, error) ``` ## Default Value "" ## Remarks The public key of the certificate. The key is provided as PEM/Base64-encoded data. This property is read-only. ## Data Type **string** # SSLCertPublicKeyAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The textual description of the certificate's public key algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPublicKeyAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLCertPublicKeyLength Property ([SNMPMgr](#snmpmgr-component) Component) The length of the certificate's public key (in bits). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertPublicKeyLength() (int32, error) ``` ## Default Value 0 ## Remarks The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048. This property is read-only. ## Data Type **int32** # SSLCertSerialNumber Property ([SNMPMgr](#snmpmgr-component) Component) The serial number of the certificate encoded as a string. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertSerialNumber() (string, error) ``` ## Default Value "" ## Remarks The serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number. This property is read-only. ## Data Type **string** # SSLCertSignatureAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The text description of the certificate's signature algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertSignatureAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLCertStore Property ([SNMPMgr](#snmpmgr-component) Component) The name of the certificate store for the client certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertStore() ([]byte, error)func (obj *SNMPMgr) SetSSLCertStore(value []byte) error ``` ## Default Value "MY" ## Remarks The name of the certificate store for the client certificate. The [SSLCertStoreType](#sslcertstoretype-property-snmpmgr-component) property denotes the type of the certificate store specified by [SSLCertStore](#sslcertstore-property-snmpmgr-component). If the store is password-protected, specify the password in [SSLCertStorePassword](#sslcertstorepassword-property-snmpmgr-component). [SSLCertStore](#sslcertstore-property-snmpmgr-component) is used in conjunction with the [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) property to specify client certificates. If [SSLCertStore](#sslcertstore-property-snmpmgr-component) has a value, and [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) or [SSLCertEncoded](#sslcertencoded-property-snmpmgr-component) is set, a search for a certificate is initiated. Please see the [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) property for details. Designations of certificate stores are platform dependent. The following designations are the most common User and Machine certificate stores in Windows: | | | | --- | --- | | MY | A certificate store holding personal certificates with their associated private keys. | | CA | Certifying authority certificates. | | ROOT | Root certificates. | When the certificate store type is *cstPFXFile*, this property must be set to the name of the file. When the type is *cstPFXBlob*, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store). ## Data Type **[]byte** # SSLCertStorePassword Property ([SNMPMgr](#snmpmgr-component) Component) If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertStorePassword() (string, error)func (obj *SNMPMgr) SetSSLCertStorePassword(value string) error ``` ## Default Value "" ## Remarks If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. ## Data Type **string** # SSLCertStoreType Property ([SNMPMgr](#snmpmgr-component) Component) The type of certificate store for this certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertStoreType() (int32, error)func (obj *SNMPMgr) SetSSLCertStoreType(value int32) error ``` ## Possible Values ```text 0 // User1 // Machine2 // PFXFile3 // PFXBlob4 // JKSFile5 // JKSBlob6 // PEMKeyFile7 // PEMKeyBlob8 // PublicKeyFile9 // PublicKeyBlob10 // SSHPublicKeyBlob11 // P7BFile12 // P7BBlob13 // SSHPublicKeyFile14 // PPKFile15 // PPKBlob16 // XMLFile17 // XMLBlob18 // JWKFile19 // JWKBlob20 // SecurityKey21 // BCFKSFile22 // BCFKSBlob23 // PKCS1199 // Auto ``` ## Default Value 0 ## Remarks The type of certificate store for this certificate. The struct supports both public and private keys in a variety of formats. When the *cstAuto* value is used, the struct will automatically determine the type. This property can take one of the following values: ```csharp sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll", "123456", // PIN "CN=cert_subject"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` ```csharp certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; // PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` | | | | --- | --- | | 0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user. NOTE: This store type is not available in Java. | | 1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store. NOTE: This store type is not available in Java. | | 2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. | | 3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. | | 4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates. NOTE: This store type is only available in Java. | | 5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format. NOTE: This store type is only available in Java. | | 6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. | | 7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. | | 8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. | | 9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. | | 10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. | | 11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. | | 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. | | 13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. | | 14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). | | 15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). | | 16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. | | 17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. | | 18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). | | 19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). | | 21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). NOTE: This store type is only available in Java and .NET. | | 22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. NOTE: This store type is only available in Java and .NET. | | 23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface. To use a security key, create a new [Certificate](#Type_Certificate) object and pass cstPKCS11 as the [SSLCertStoreType](#sslcertstoretype-property-snmpmgr-component), the full path of the PKCS#11 DLL as the [SSLCertStore](#sslcertstore-property-snmpmgr-component), and the PIN as the [SSLCertStorePassword](#sslcertstorepassword-property-snmpmgr-component). Code Example. SSH Authentication with Security Key (without CertMgr): Alternatively, collect the necessary data using the [CertMgr](#CertMgr) struct by calling the [ListStoreCertificates](#CertMgr_m_ListStoreCertificates) method after setting the corresponding properties accordingly. The certificate information returned in the [CertList](#CertMgr_e_CertList) event's CertEncoded parameter may be saved for later use. When using a certificate obtained with this approach, pass the previously saved security key information as the [SSLCertStore](#sslcertstore-property-snmpmgr-component) and set [SSLCertStorePassword](#sslcertstorepassword-property-snmpmgr-component) to the PIN. Code Example. SSH Authentication with Security Key (with CertMgr): | | 99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. | ## Data Type **int32** # SSLCertSubjectAltNames Property ([SNMPMgr](#snmpmgr-component) Component) Comma-separated lists of alternative subject names for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertSubjectAltNames() (string, error) ``` ## Default Value "" ## Remarks Comma-separated lists of alternative subject names for the certificate. This property is read-only. ## Data Type **string** # SSLCertThumbprintMD5 Property ([SNMPMgr](#snmpmgr-component) Component) The MD5 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertThumbprintMD5() (string, error) ``` ## Default Value "" ## Remarks The MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLCertThumbprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-1 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertThumbprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLCertThumbprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-256 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertThumbprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLCertUsage Property ([SNMPMgr](#snmpmgr-component) Component) The text description of UsageFlags . ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertUsage() (string, error) ``` ## Default Value "" ## Remarks The text description of [SSLCertUsageFlags](#sslcertusageflags-property-snmpmgr-component). This value will be one or more of the following strings and will be separated by commas: - Digital Signature - Non-Repudiation - Key Encipherment - Data Encipherment - Key Agreement - Certificate Signing - CRL Signing - Encipher Only If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names. This property is read-only. ## Data Type **string** # SSLCertUsageFlags Property ([SNMPMgr](#snmpmgr-component) Component) The flags that show intended use for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertUsageFlags() (int32, error) ``` ## Default Value 0 ## Remarks The flags that show intended use for the certificate. The value of [SSLCertUsageFlags](#sslcertusageflags-property-snmpmgr-component) is a combination of the following flags: | | | | --- | --- | | 0x80 | Digital Signature | | 0x40 | Non-Repudiation | | 0x20 | Key Encipherment | | 0x10 | Data Encipherment | | 0x08 | Key Agreement | | 0x04 | Certificate Signing | | 0x02 | CRL Signing | | 0x01 | Encipher Only | Please see the [SSLCertUsage](#sslcertusage-property-snmpmgr-component) property for a text representation of [SSLCertUsageFlags](#sslcertusageflags-property-snmpmgr-component). This functionality currently is not available when the provider is OpenSSL. This property is read-only. ## Data Type **int32** # SSLCertVersion Property ([SNMPMgr](#snmpmgr-component) Component) The certificate's version number. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertVersion() (string, error) ``` ## Default Value "" ## Remarks The certificate's version number. The possible values are the strings "V1", "V2", and "V3". This property is read-only. ## Data Type **string** # SSLCertSubject Property ([SNMPMgr](#snmpmgr-component) Component) The subject of the certificate used for client authentication. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertSubject() (string, error)func (obj *SNMPMgr) SetSSLCertSubject(value string) error ``` ## Default Value "" ## Remarks The subject of the certificate used for client authentication. This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject. If a matching certificate is found, the property is set to the full subject of the matching certificate. If an exact match is not found, the store is searched for subjects containing the value of the property. If a match is still not found, the property is set to an empty string, and no certificate is selected. The special value "*" picks a random certificate in the certificate store. The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=example@email.com". Common fields and their meanings are as follows: | Field | Meaning | | --- | --- | | CN | Common Name. This is commonly a hostname like www.server.com. | | O | Organization | | OU | Organizational Unit | | L | Locality | | S | State | | C | Country | | E | Email Address | If a field value contains a comma, it must be quoted. ## Data Type **string** # SSLCertEncoded Property ([SNMPMgr](#snmpmgr-component) Component) The certificate (PEM/Base64 encoded). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLCertEncoded() ([]byte, error)func (obj *SNMPMgr) SetSSLCertEncoded(value []byte) error ``` ## Default Value "" ## Remarks The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The [SSLCertStore](#sslcertstore-property-snmpmgr-component) and [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) properties also may be used to specify a certificate. When [SSLCertEncoded](#sslcertencoded-property-snmpmgr-component) is set, a search is initiated in the current [SSLCertStore](#sslcertstore-property-snmpmgr-component) for the private key of the certificate. If the key is found, [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) is updated to reflect the full subject of the selected certificate; otherwise, [SSLCertSubject](#sslcertsubject-property-snmpmgr-component) is set to an empty string. ## Data Type **[]byte** # SSLEnabled Property ([SNMPMgr](#snmpmgr-component) Component) Whether DTLS is enabled. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLEnabled() (bool, error)func (obj *SNMPMgr) SetSSLEnabled(value bool) error ``` ## Default Value false ## Remarks This setting specifies whether DTLS is enabled in the struct. When False (default) the struct operates in plaintext mode. When True DTLS is enabled. ## Data Type **bool** # SSLServerCertEffectiveDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which this certificate becomes valid. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertEffectiveDate() (string, error) ``` ## Default Value "" ## Remarks The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2000 15:00:00. This property is read-only. ## Data Type **string** # SSLServerCertExpirationDate Property ([SNMPMgr](#snmpmgr-component) Component) The date on which the certificate expires. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertExpirationDate() (string, error) ``` ## Default Value "" ## Remarks The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date: 23-Jan-2001 15:00:00. This property is read-only. ## Data Type **string** # SSLServerCertExtendedKeyUsage Property ([SNMPMgr](#snmpmgr-component) Component) A comma-delimited list of extended key usage identifiers. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertExtendedKeyUsage() (string, error) ``` ## Default Value "" ## Remarks A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs). This property is read-only. ## Data Type **string** # SSLServerCertFingerprint Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 16-byte MD5 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertFingerprint() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02* This property is read-only. ## Data Type **string** # SSLServerCertFingerprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertFingerprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84* This property is read-only. ## Data Type **string** # SSLServerCertFingerprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertFingerprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys. The following example illustrates the format: *6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53* This property is read-only. ## Data Type **string** # SSLServerCertIssuer Property ([SNMPMgr](#snmpmgr-component) Component) The issuer of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertIssuer() (string, error) ``` ## Default Value "" ## Remarks The issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate. This property is read-only. ## Data Type **string** # SSLServerCertPrivateKey Property ([SNMPMgr](#snmpmgr-component) Component) The private key of the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPrivateKey() (string, error) ``` ## Default Value "" ## Remarks The private key of the certificate (if available). The key is provided as PEM/Base64-encoded data. NOTE: The [SSLServerCertPrivateKey](#sslservercertprivatekey-property-snmpmgr-component) may be available but not exportable. In this case, [SSLServerCertPrivateKey](#sslservercertprivatekey-property-snmpmgr-component) returns an empty string. This property is read-only. ## Data Type **string** # SSLServerCertPrivateKeyAvailable Property ([SNMPMgr](#snmpmgr-component) Component) Whether a PrivateKey is available for the selected certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPrivateKeyAvailable() (bool, error) ``` ## Default Value false ## Remarks Whether a [SSLServerCertPrivateKey](#sslservercertprivatekey-property-snmpmgr-component) is available for the selected certificate. If [SSLServerCertPrivateKeyAvailable](#sslservercertprivatekeyavailable-property-snmpmgr-component) is True, the certificate may be used for authentication purposes (e.g., server authentication). This property is read-only. ## Data Type **bool** # SSLServerCertPrivateKeyContainer Property ([SNMPMgr](#snmpmgr-component) Component) The name of the PrivateKey container for the certificate (if available). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPrivateKeyContainer() (string, error) ``` ## Default Value "" ## Remarks The name of the [SSLServerCertPrivateKey](#sslservercertprivatekey-property-snmpmgr-component) container for the certificate (if available). This functionality is available only on Windows platforms. This property is read-only. ## Data Type **string** # SSLServerCertPublicKey Property ([SNMPMgr](#snmpmgr-component) Component) The public key of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPublicKey() (string, error) ``` ## Default Value "" ## Remarks The public key of the certificate. The key is provided as PEM/Base64-encoded data. This property is read-only. ## Data Type **string** # SSLServerCertPublicKeyAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The textual description of the certificate's public key algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPublicKeyAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLServerCertPublicKeyLength Property ([SNMPMgr](#snmpmgr-component) Component) The length of the certificate's public key (in bits). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertPublicKeyLength() (int32, error) ``` ## Default Value 0 ## Remarks The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048. This property is read-only. ## Data Type **int32** # SSLServerCertSerialNumber Property ([SNMPMgr](#snmpmgr-component) Component) The serial number of the certificate encoded as a string. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertSerialNumber() (string, error) ``` ## Default Value "" ## Remarks The serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number. This property is read-only. ## Data Type **string** # SSLServerCertSignatureAlgorithm Property ([SNMPMgr](#snmpmgr-component) Component) The text description of the certificate's signature algorithm. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertSignatureAlgorithm() (string, error) ``` ## Default Value "" ## Remarks The text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm. This property is read-only. ## Data Type **string** # SSLServerCertStore Property ([SNMPMgr](#snmpmgr-component) Component) The name of the certificate store for the client certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertStore() ([]byte, error) ``` ## Default Value "MY" ## Remarks The name of the certificate store for the client certificate. The [SSLServerCertStoreType](#sslservercertstoretype-property-snmpmgr-component) property denotes the type of the certificate store specified by [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component). If the store is password-protected, specify the password in [SSLServerCertStorePassword](#sslservercertstorepassword-property-snmpmgr-component). [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) is used in conjunction with the [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) property to specify client certificates. If [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) has a value, and [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) or [SSLServerCertEncoded](#sslservercertencoded-property-snmpmgr-component) is set, a search for a certificate is initiated. Please see the [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) property for details. Designations of certificate stores are platform dependent. The following designations are the most common User and Machine certificate stores in Windows: | | | | --- | --- | | MY | A certificate store holding personal certificates with their associated private keys. | | CA | Certifying authority certificates. | | ROOT | Root certificates. | When the certificate store type is *cstPFXFile*, this property must be set to the name of the file. When the type is *cstPFXBlob*, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store). This property is read-only. ## Data Type **[]byte** # SSLServerCertStorePassword Property ([SNMPMgr](#snmpmgr-component) Component) If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertStorePassword() (string, error) ``` ## Default Value "" ## Remarks If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. This property is read-only. ## Data Type **string** # SSLServerCertStoreType Property ([SNMPMgr](#snmpmgr-component) Component) The type of certificate store for this certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertStoreType() (int32, error) ``` ## Possible Values ```text 0 // User1 // Machine2 // PFXFile3 // PFXBlob4 // JKSFile5 // JKSBlob6 // PEMKeyFile7 // PEMKeyBlob8 // PublicKeyFile9 // PublicKeyBlob10 // SSHPublicKeyBlob11 // P7BFile12 // P7BBlob13 // SSHPublicKeyFile14 // PPKFile15 // PPKBlob16 // XMLFile17 // XMLBlob18 // JWKFile19 // JWKBlob20 // SecurityKey21 // BCFKSFile22 // BCFKSBlob23 // PKCS1199 // Auto ``` ## Default Value 0 ## Remarks The type of certificate store for this certificate. The struct supports both public and private keys in a variety of formats. When the *cstAuto* value is used, the struct will automatically determine the type. This property can take one of the following values: ```csharp sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll", "123456", // PIN "CN=cert_subject"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` ```csharp certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; // PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22); ``` | | | | --- | --- | | 0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user. NOTE: This store type is not available in Java. | | 1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store. NOTE: This store type is not available in Java. | | 2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. | | 3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. | | 4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates. NOTE: This store type is only available in Java. | | 5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format. NOTE: This store type is only available in Java. | | 6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. | | 7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. | | 8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. | | 9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. | | 10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. | | 11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. | | 12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. | | 13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. | | 14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). | | 15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). | | 16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. | | 17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. | | 18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). | | 19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). | | 21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). NOTE: This store type is only available in Java and .NET. | | 22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. NOTE: This store type is only available in Java and .NET. | | 23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface. To use a security key, create a new [Certificate](#Type_Certificate) object and pass cstPKCS11 as the [SSLServerCertStoreType](#sslservercertstoretype-property-snmpmgr-component), the full path of the PKCS#11 DLL as the [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component), and the PIN as the [SSLServerCertStorePassword](#sslservercertstorepassword-property-snmpmgr-component). Code Example. SSH Authentication with Security Key (without CertMgr): Alternatively, collect the necessary data using the [CertMgr](#CertMgr) struct by calling the [ListStoreCertificates](#CertMgr_m_ListStoreCertificates) method after setting the corresponding properties accordingly. The certificate information returned in the [CertList](#CertMgr_e_CertList) event's CertEncoded parameter may be saved for later use. When using a certificate obtained with this approach, pass the previously saved security key information as the [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) and set [SSLServerCertStorePassword](#sslservercertstorepassword-property-snmpmgr-component) to the PIN. Code Example. SSH Authentication with Security Key (with CertMgr): | | 99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. | This property is read-only. ## Data Type **int32** # SSLServerCertSubjectAltNames Property ([SNMPMgr](#snmpmgr-component) Component) Comma-separated lists of alternative subject names for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertSubjectAltNames() (string, error) ``` ## Default Value "" ## Remarks Comma-separated lists of alternative subject names for the certificate. This property is read-only. ## Data Type **string** # SSLServerCertThumbprintMD5 Property ([SNMPMgr](#snmpmgr-component) Component) The MD5 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertThumbprintMD5() (string, error) ``` ## Default Value "" ## Remarks The MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLServerCertThumbprintSHA1 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-1 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertThumbprintSHA1() (string, error) ``` ## Default Value "" ## Remarks The SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLServerCertThumbprintSHA256 Property ([SNMPMgr](#snmpmgr-component) Component) The SHA-256 hash of the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertThumbprintSHA256() (string, error) ``` ## Default Value "" ## Remarks The SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed. This property is read-only. ## Data Type **string** # SSLServerCertUsage Property ([SNMPMgr](#snmpmgr-component) Component) The text description of UsageFlags . ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertUsage() (string, error) ``` ## Default Value "" ## Remarks The text description of [SSLServerCertUsageFlags](#sslservercertusageflags-property-snmpmgr-component). This value will be one or more of the following strings and will be separated by commas: - Digital Signature - Non-Repudiation - Key Encipherment - Data Encipherment - Key Agreement - Certificate Signing - CRL Signing - Encipher Only If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names. This property is read-only. ## Data Type **string** # SSLServerCertUsageFlags Property ([SNMPMgr](#snmpmgr-component) Component) The flags that show intended use for the certificate. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertUsageFlags() (int32, error) ``` ## Default Value 0 ## Remarks The flags that show intended use for the certificate. The value of [SSLServerCertUsageFlags](#sslservercertusageflags-property-snmpmgr-component) is a combination of the following flags: | | | | --- | --- | | 0x80 | Digital Signature | | 0x40 | Non-Repudiation | | 0x20 | Key Encipherment | | 0x10 | Data Encipherment | | 0x08 | Key Agreement | | 0x04 | Certificate Signing | | 0x02 | CRL Signing | | 0x01 | Encipher Only | Please see the [SSLServerCertUsage](#sslservercertusage-property-snmpmgr-component) property for a text representation of [SSLServerCertUsageFlags](#sslservercertusageflags-property-snmpmgr-component). This functionality currently is not available when the provider is OpenSSL. This property is read-only. ## Data Type **int32** # SSLServerCertVersion Property ([SNMPMgr](#snmpmgr-component) Component) The certificate's version number. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertVersion() (string, error) ``` ## Default Value "" ## Remarks The certificate's version number. The possible values are the strings "V1", "V2", and "V3". This property is read-only. ## Data Type **string** # SSLServerCertSubject Property ([SNMPMgr](#snmpmgr-component) Component) The subject of the certificate used for client authentication. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertSubject() (string, error) ``` ## Default Value "" ## Remarks The subject of the certificate used for client authentication. This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject. If a matching certificate is found, the property is set to the full subject of the matching certificate. If an exact match is not found, the store is searched for subjects containing the value of the property. If a match is still not found, the property is set to an empty string, and no certificate is selected. The special value "*" picks a random certificate in the certificate store. The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=example@email.com". Common fields and their meanings are as follows: | Field | Meaning | | --- | --- | | CN | Common Name. This is commonly a hostname like www.server.com. | | O | Organization | | OU | Organizational Unit | | L | Locality | | S | State | | C | Country | | E | Email Address | If a field value contains a comma, it must be quoted. This property is read-only. ## Data Type **string** # SSLServerCertEncoded Property ([SNMPMgr](#snmpmgr-component) Component) The certificate (PEM/Base64 encoded). ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SSLServerCertEncoded() ([]byte, error) ``` ## Default Value "" ## Remarks The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) and [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) properties also may be used to specify a certificate. When [SSLServerCertEncoded](#sslservercertencoded-property-snmpmgr-component) is set, a search is initiated in the current [SSLServerCertStore](#sslservercertstore-property-snmpmgr-component) for the private key of the certificate. If the key is found, [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) is updated to reflect the full subject of the selected certificate; otherwise, [SSLServerCertSubject](#sslservercertsubject-property-snmpmgr-component) is set to an empty string. This property is read-only. ## Data Type **[]byte** # StoreWalkObjects Property ([SNMPMgr](#snmpmgr-component) Component) Tells the class whether or not to store returned objects. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) StoreWalkObjects() (bool, error)func (obj *SNMPMgr) SetStoreWalkObjects(value bool) error ``` ## Default Value true ## Remarks When a [Walk](#walk-method-snmpmgr-component) is performed, this property tells the struct whether or not to store the objects that are returned by the server in the Objects collection. If the data is accumulated through the events, and not desired to be saved by the struct, set this property to false. ## Data Type **bool** # Timeout Property ([SNMPMgr](#snmpmgr-component) Component) This property includes the timeout for the class. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Timeout() (int32, error)func (obj *SNMPMgr) SetTimeout(value int32) error ``` ## Default Value 60 ## Remarks If the Timeout property is set to 0, all operations return immediately, potentially failing with a *WOULDBLOCK* error if data cannot be sent immediately. If Timeout is set to a positive value, data is sent in a blocking manner and the struct will wait for the operation to complete before returning control. The struct will handle any potential *WOULDBLOCK* errors internally and automatically retry the operation for a maximum of Timeout seconds. The struct will use [DoEvents](#doevents-method-snmpmgr-component) to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not freeze and remains responsive. If Timeout expires, and the operation is not yet complete, the struct fails with an error. NOTE: By default, all timeouts are *inactivity timeouts*, that is, the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received. The default value for the Timeout property is 60 seconds. ## Data Type **int32** # User Property ([SNMPMgr](#snmpmgr-component) Component) The user name used for SNMPv3 authentication. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) User() (string, error)func (obj *SNMPMgr) SetUser(value string) error ``` ## Default Value "" ## Remarks If authentication is desired, this property must be set before the struct attempts to connect to an SNMPv3 Agent. ## Data Type **string** # WalkLimit Property ([SNMPMgr](#snmpmgr-component) Component) The limit of oid's returned in a walk. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) WalkLimit() (int32, error)func (obj *SNMPMgr) SetWalkLimit(value int32) error ``` ## Default Value 0 ## Remarks This property specifies the limit of how many oid's are to be traversed during an SNMP [Walk](#walk-method-snmpmgr-component). If set to 0, the struct will traverse all oid's in the specified table that are lexicographically greater than the value of the specified table oid. ## Data Type **int32** # Activate Method ([SNMPMgr](#snmpmgr-component) Component) Activates the class. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Activate() error ``` ## Remarks This method activates the component and will allow it to send or receive data. The struct will be automatically activated if it is not already and you attempt to perform an operation which requires the struct to be active. NOTE: Use the [Active](#active-property-snmpmgr-component) property to check whether the component is active. # Config Method ([SNMPMgr](#snmpmgr-component) Component) Sets or retrieves a configuration setting. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Config(ConfigurationString string) (string, error) ``` ## Remarks Config is a generic method available in every struct. It is used to set and retrieve [configuration settings](#config-settings-snmpmgr-component) for the struct. These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these *internal properties* is provided through the Config method. To set a configuration setting named *PROPERTY*, you must call *Config("PROPERTY=VALUE")*, where *VALUE* is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter). To read (query) the value of a [configuration setting](#config-settings-snmpmgr-component), you must call *Config("PROPERTY")*. The value will be returned as a string. # Deactivate Method ([SNMPMgr](#snmpmgr-component) Component) Deactivates the class. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Deactivate() error ``` ## Remarks This method deactivates the component and will prohibit it from sending and receiving data. NOTE: Use the [Active](#active-property-snmpmgr-component) property to check whether the component is active. # Discover Method ([SNMPMgr](#snmpmgr-component) Component) Performs SNMPv3 discovery. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Discover() error ``` ## Remarks When the method is called an SNMPv3 engine discovery request is sent to [RemoteHost](#remotehost-property-snmpmgr-component). If an [AuthenticationPassword](#authenticationpassword-property-snmpmgr-component) is provided, the engine id discovery request is followed by an engine time discovery request, as required by the SNMPv3 User Security Model (USM). In this case [Timeout](#timeout-property-snmpmgr-component) must be set to a non-zero value before calling **Discover** and the struct will wait until a response is received from [RemoteHost](#remotehost-property-snmpmgr-component). The [DiscoveryResponse](#discoveryresponse-event-snmpmgr-component) event is fired upon receipt of a valid discovery response and the values of [RemoteEngineId](#remoteengineid-property-snmpmgr-component), [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component), and [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) will then be updated with the received Engine Id, Time, and Boots. # DoEvents Method ([SNMPMgr](#snmpmgr-component) Component) This method processes events from the internal message queue. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) DoEvents() error ``` ## Remarks When DoEvents is called, the struct processes any available events. If no events are available, it waits for a preset period of time, and then returns. # HashPasswords Method ([SNMPMgr](#snmpmgr-component) Component) Hashes all passwords in the cache. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) HashPasswords() error ``` ## Remarks Forces computation of all passwords hashes in the cache. Used together with the [HashPassword](#hashpassword-event-snmpmgr-component) event to enable implementations of external password hash storage. # Interrupt Method ([SNMPMgr](#snmpmgr-component) Component) This method interrupts the current method. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Interrupt() error ``` ## Remarks If there is no method in progress, Interrupt simply returns, doing nothing. # PauseData Method ([SNMPMgr](#snmpmgr-component) Component) This method pauses data reception. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) PauseData() error ``` ## Remarks This method pauses data reception when called. While data reception is paused, the DataIn event will not fire. Call [ProcessData](#processdata-method-snmpmgr-component) to reenable data reception. # ProcessData Method ([SNMPMgr](#snmpmgr-component) Component) This method reenables data reception after a call to PauseData . ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) ProcessData() error ``` ## Remarks This method reenables data reception after a previous call to [PauseData](#pausedata-method-snmpmgr-component). When [PauseData](#pausedata-method-snmpmgr-component) is called, the DataIn event will not fire. To reenable data reception and allow DataIn to fire, call this method. NOTE: This method is used only after previously calling [PauseData](#pausedata-method-snmpmgr-component). It does not need to be called to process incoming data by default. # Reset Method ([SNMPMgr](#snmpmgr-component) Component) Clears the object arrays. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Reset() error ``` ## Remarks Clears the object arrays, and sets the trap and error properties to their default values. This is useful for reinitializing all the properties that are used to create outgoing packets before building a new packet. Note: [SNMPVersion](#snmpversion-property-snmpmgr-component) will be reset to **snmpverV2c (2)**. # SendGetBulkRequest Method ([SNMPMgr](#snmpmgr-component) Component) Send a GetBulkRequest packet. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SendGetBulkRequest(NonRepeaters int32, MaxRepetitions int32) error ``` ## Remarks Sends a GetBulkRequest packet. This is only available for SNMP versions 2 and 3. *NonRepeaters* specifies the number of variables for which a single lexicographic successor is to be returned. *MaxRepetitions* specifies the number of lexicographic successors to be returned for variables other than those in the *NonRepeaters* list. The object identifiers, types, and values for the request are taken from the Objects collection. A GetBulkRequest is very similar to a GetNextRequest, the difference is that Getbulk performs a continuous GetNext operation based on the *MaxRepetitions* value. The *NonRepeaters* value will determine the number of Objects for which a simple GetNext operation should be performed. For the remaining variables, a continuous GetNext operation is performed based on the *MaxRepetitions* value. So if you send a request containing X objects, the agent will perform N simple GetNext operations and M continuous GetNext operations X - N times. With X being the number of objects received, N being the number of *NonRepeaters*, and M being the number of *MaxRepetitions*. Thus the SNMPMgr is expecting to receive N + M x (X - N) objects, assuming that each object has M successors. **Example (Sending a GetBulk Request)** ```text SNMPControl.RemoteHost = "MyAgent" SNMPControl.ObjCount = 2 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" SNMPControl.objId(1) = "1.3.6.1.2.1.1.3.0" SNMPControl.SendGetBulkRequest(1,4) ``` The code sample above will send a GetBulkRequest with 1 non repeater, and a maxrepetitions of 4. Since there is only 1 non repeater, only one ObjID will "not repeat" and will only return one successor. The rest of the ObjID's (in this case, only 1) will return 4 successors. This particular example will return the following ObjID's: | | | | --- | --- | | 1 | 1.3.6.1.2.1.1.2.0 | | 2 | 1.3.6.1.2.1.1.4.0 | | 3 | 1.3.6.1.2.1.1.5.0 | | 4 | 1.3.6.1.2.1.1.6.0 | | 5 | 1.3.6.1.2.1.1.7.0 | # SendGetNextRequest Method ([SNMPMgr](#snmpmgr-component) Component) Send GetNextRequest packet. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SendGetNextRequest() error ``` ## Remarks Sends a GetNextRequest packet. The object identifiers, types, and values for the request are taken from the Objects collection. **Example (Sending a GetNext Request)** ```text SNMPControl.ObjCount = 2 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" SNMPControl.SendGetNextRequest() ``` The agent will respond with the "next" (relative to the ObjID(s) you specify) OID in the table. # SendGetRequest Method ([SNMPMgr](#snmpmgr-component) Component) Send GetRequest packet. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SendGetRequest() error ``` ## Remarks Sends a GetRequest packet. The object identifiers, types, and values for the request are taken from the Objects collection. **Example (Sending a GetRequest)** ```text SNMPControl.RemoteHost = "MyAgent" SNMPControl.ObjCount = 2 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" SNMPControl.ObjId(1) = "1.3.6.1.2.1.1.2.0" SNMPControl.SendGetRequest() ``` # SendInformRequest Method ([SNMPMgr](#snmpmgr-component) Component) Send an InformRequest packet. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SendInformRequest() error ``` ## Remarks Sends an InformRequest packet. The object identifiers, types, and values for the request are taken from the Objects collection. # SendSetRequest Method ([SNMPMgr](#snmpmgr-component) Component) Send Set Request packet. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) SendSetRequest() error ``` ## Remarks Sends a SetRequest packet. The object identifiers, types, and values for the request are taken from the Objects collection. **Example (Sending a SetRequest)** ```text SNMPControl.RemoteHost = "MyAgent" SNMPControl.ObjCount = 1 SNMPControl.ObjId(0) = "1.3.6.1.2.1.1.1.0" SNMPControl.ObjValue(0) = "New Value" SNMPControl.ObjType(0) = otOctetString SNMPControl.SendSetRequest() ``` # Value Method ([SNMPMgr](#snmpmgr-component) Component) Returns the value corresponding to an OID. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Value(OID string) (string, error) ``` ## Remarks If the OID does not exist in the Objects collection, a trappable error is generated. Please refer to the SNMPObject type for more information. # Walk Method ([SNMPMgr](#snmpmgr-component) Component) Does an SNMP walk starting with the specified oid. ## Syntax *Go Syntax* ```text func (obj *SNMPMgr) Walk(TableOid string) error ``` ## Remarks A walk will traverse all OIDs in the *TableOid* that are lexicographically greater than the value of the *TableOid*. The results of the walk may be obtained through the Response events. During the event, the current returned object will exist inside of the Objects collection. If [StoreWalkObjects](#storewalkobjects-property-snmpmgr-component) is set to true, the Objects collection will contain all returned objects when the Walk completes. Use the [WalkLimit](#walklimit-property-snmpmgr-component) property to regulate how many objects the walk will traverse in the table. NOTE: The collection of objects is cleared before the walk begins. # BadPacket Event ([SNMPMgr](#snmpmgr-component) Component) Fired for erroneous and/or malformed messages. ## Syntax *Go Syntax* ```text // SNMPMgrBadPacketEventArgs carries the SNMPMgr BadPacket event's parameters. type SNMPMgrBadPacketEventArgs struct {...} func (args *SNMPMgrBadPacketEventArgs) Packet() []byte func (args *SNMPMgrBadPacketEventArgs) SourceAddress() string func (args *SNMPMgrBadPacketEventArgs) SourcePort() int32 func (args *SNMPMgrBadPacketEventArgs) ErrorCode() int32 func (args *SNMPMgrBadPacketEventArgs) ErrorDescription() string func (args *SNMPMgrBadPacketEventArgs) Report() bool func (args *SNMPMgrBadPacketEventArgs) SetReport(value bool) // SNMPMgrBadPacketEvent defines the signature of the SNMPMgr BadPacket event's handler function. type SNMPMgrBadPacketEvent func(sender *SNMPMgr, args *SNMPMgrBadPacketEventArgs) func (obj *SNMPMgr) GetOnBadPacketHandler() SNMPMgrBadPacketEvent func (obj *SNMPMgr) SetOnBadPacketHandler(handlerFunc SNMPMgrBadPacketEvent) ``` ## Remarks The full message is provided in the *Packet* parameter. The BadPacket event is also fired when authentication fails for received packets due to a bad password or other reasons. If the *Report* parameter is set to True, an unauthenticated error report will be sent to the client, otherwise the packet will be silently ignored. # Connected Event ([SNMPMgr](#snmpmgr-component) Component) Fired immediately after a connection completes (or fails). ## Syntax *Go Syntax* ```text // SNMPMgrConnectedEventArgs carries the SNMPMgr Connected event's parameters. type SNMPMgrConnectedEventArgs struct {...} func (args *SNMPMgrConnectedEventArgs) RemoteAddress() string func (args *SNMPMgrConnectedEventArgs) RemotePort() int32 func (args *SNMPMgrConnectedEventArgs) StatusCode() int32 func (args *SNMPMgrConnectedEventArgs) Description() string // SNMPMgrConnectedEvent defines the signature of the SNMPMgr Connected event's handler function. type SNMPMgrConnectedEvent func(sender *SNMPMgr, args *SNMPMgrConnectedEventArgs) func (obj *SNMPMgr) GetOnConnectedHandler() SNMPMgrConnectedEvent func (obj *SNMPMgr) SetOnConnectedHandler(handlerFunc SNMPMgrConnectedEvent) ``` ## Remarks This event fires after a connection completes or fails. *StatusCode* is the value returned by the system TCP/IP stack. This will be 0 if the connection was successful. *Description* contains a human readable description of the status. This will be "OK" if the connection was successful. *RemoteAddress* is the IP address of the remote host. *RemotePort* is the port on the remote host. # Disconnected Event ([SNMPMgr](#snmpmgr-component) Component) Fired when a connection is closed. ## Syntax *Go Syntax* ```text // SNMPMgrDisconnectedEventArgs carries the SNMPMgr Disconnected event's parameters. type SNMPMgrDisconnectedEventArgs struct {...} func (args *SNMPMgrDisconnectedEventArgs) RemoteAddress() string func (args *SNMPMgrDisconnectedEventArgs) RemotePort() int32 func (args *SNMPMgrDisconnectedEventArgs) StatusCode() int32 func (args *SNMPMgrDisconnectedEventArgs) Description() string // SNMPMgrDisconnectedEvent defines the signature of the SNMPMgr Disconnected event's handler function. type SNMPMgrDisconnectedEvent func(sender *SNMPMgr, args *SNMPMgrDisconnectedEventArgs) func (obj *SNMPMgr) GetOnDisconnectedHandler() SNMPMgrDisconnectedEvent func (obj *SNMPMgr) SetOnDisconnectedHandler(handlerFunc SNMPMgrDisconnectedEvent) ``` ## Remarks This event fires after a connection is broken. *StatusCode* is the value returned by the system TCP/IP stack. This will be 0 if the connection was broken normally. *Description* contains a human readable description of the status. This will be "OK" if the connection was broken normally. *RemoteAddress* is the IP address of the remote host. *RemotePort* is the port on the remote host. # DiscoveryRequest Event ([SNMPMgr](#snmpmgr-component) Component) Fired when an SNMPv3 discovery packet is received. ## Syntax *Go Syntax* ```text // SNMPMgrDiscoveryRequestEventArgs carries the SNMPMgr DiscoveryRequest event's parameters. type SNMPMgrDiscoveryRequestEventArgs struct {...} func (args *SNMPMgrDiscoveryRequestEventArgs) EngineId() []byte func (args *SNMPMgrDiscoveryRequestEventArgs) EngineBoots() int32 func (args *SNMPMgrDiscoveryRequestEventArgs) EngineTime() int32 func (args *SNMPMgrDiscoveryRequestEventArgs) User() string func (args *SNMPMgrDiscoveryRequestEventArgs) SecurityLevel() int32 func (args *SNMPMgrDiscoveryRequestEventArgs) SourceAddress() string func (args *SNMPMgrDiscoveryRequestEventArgs) SourcePort() int32 func (args *SNMPMgrDiscoveryRequestEventArgs) Respond() bool func (args *SNMPMgrDiscoveryRequestEventArgs) SetRespond(value bool) // SNMPMgrDiscoveryRequestEvent defines the signature of the SNMPMgr DiscoveryRequest event's handler function. type SNMPMgrDiscoveryRequestEvent func(sender *SNMPMgr, args *SNMPMgrDiscoveryRequestEventArgs) func (obj *SNMPMgr) GetOnDiscoveryRequestHandler() SNMPMgrDiscoveryRequestEvent func (obj *SNMPMgr) SetOnDiscoveryRequestHandler(handlerFunc SNMPMgrDiscoveryRequestEvent) ``` ## Remarks *EngineId*, *EngineBoots*, *EngineTime*, and *User* are the values received from *SourceAddress*. For SNMPv3, the *User* parameter shows the user that was supplied with the packet. This parameter *MUST* be used together with the *SecurityLevel* parameter which shows the level of security in the message. The *SecurityLevel* parameter shows whether the request has been authenticated. If *SecurityLevel* is 0, the request has *NOT* been authenticated (i.e. the packet signature has not been verified). For an authenticated, non encrypted request, *SecurityLevel* is 1. For an authenticated and encrypted request, *SecurityLevel* is 2. *Respond* is True by default, and will automatically send a response using the value in [LocalEngineId](#localengineid-property-snmpmgr-component). To suppress the response, set *Respond* to False. The value returned to *SourceAddress* for *EngineBoots* is always 0, and *EngineTime* is the number of seconds since January 1st, 1970 (GMT). # DiscoveryResponse Event ([SNMPMgr](#snmpmgr-component) Component) Fired when an SNMPv3 discovery response is received. ## Syntax *Go Syntax* ```text // SNMPMgrDiscoveryResponseEventArgs carries the SNMPMgr DiscoveryResponse event's parameters. type SNMPMgrDiscoveryResponseEventArgs struct {...} func (args *SNMPMgrDiscoveryResponseEventArgs) EngineId() []byte func (args *SNMPMgrDiscoveryResponseEventArgs) EngineBoots() int32 func (args *SNMPMgrDiscoveryResponseEventArgs) EngineTime() int32 func (args *SNMPMgrDiscoveryResponseEventArgs) User() string func (args *SNMPMgrDiscoveryResponseEventArgs) SecurityLevel() int32 func (args *SNMPMgrDiscoveryResponseEventArgs) SourceAddress() string func (args *SNMPMgrDiscoveryResponseEventArgs) SourcePort() int32 // SNMPMgrDiscoveryResponseEvent defines the signature of the SNMPMgr DiscoveryResponse event's handler function. type SNMPMgrDiscoveryResponseEvent func(sender *SNMPMgr, args *SNMPMgrDiscoveryResponseEventArgs) func (obj *SNMPMgr) GetOnDiscoveryResponseHandler() SNMPMgrDiscoveryResponseEvent func (obj *SNMPMgr) SetOnDiscoveryResponseHandler(handlerFunc SNMPMgrDiscoveryResponseEvent) ``` ## Remarks *EngineId*, *EngineBoots*, *EngineTime*, and *User* are the values received from *SourceAddress* and *SourcePort*. The *SecurityLevel* parameter shows whether the request has been authenticated. If *SecurityLevel* is 0, the request has *NOT* been authenticated (i.e. the packet signature has not been verified). For an authenticated request, *SecurityLevel* is at least 1. # Error Event ([SNMPMgr](#snmpmgr-component) Component) Fired when information is available about errors during data delivery. ## Syntax *Go Syntax* ```text // SNMPMgrErrorEventArgs carries the SNMPMgr Error event's parameters. type SNMPMgrErrorEventArgs struct {...} func (args *SNMPMgrErrorEventArgs) ErrorCode() int32 func (args *SNMPMgrErrorEventArgs) Description() string // SNMPMgrErrorEvent defines the signature of the SNMPMgr Error event's handler function. type SNMPMgrErrorEvent func(sender *SNMPMgr, args *SNMPMgrErrorEventArgs) func (obj *SNMPMgr) GetOnErrorHandler() SNMPMgrErrorEvent func (obj *SNMPMgr) SetOnErrorHandler(handlerFunc SNMPMgrErrorEvent) ``` ## Remarks The Error event is fired in case of exceptional conditions during message processing. Normally the struct fails with an error. The *ErrorCode* parameter contains an error code, and the *Description* parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the [Error Codes](#trappable-errors-snmpmgr-component) section. # HashPassword Event ([SNMPMgr](#snmpmgr-component) Component) Fired before and after a password is hashed. ## Syntax *Go Syntax* ```text // SNMPMgrHashPasswordEventArgs carries the SNMPMgr HashPassword event's parameters. type SNMPMgrHashPasswordEventArgs struct {...} func (args *SNMPMgrHashPasswordEventArgs) Password() string func (args *SNMPMgrHashPasswordEventArgs) AuthAlgorithm() int32 func (args *SNMPMgrHashPasswordEventArgs) Hash() string func (args *SNMPMgrHashPasswordEventArgs) SetHash(value string) // SNMPMgrHashPasswordEvent defines the signature of the SNMPMgr HashPassword event's handler function. type SNMPMgrHashPasswordEvent func(sender *SNMPMgr, args *SNMPMgrHashPasswordEventArgs) func (obj *SNMPMgr) GetOnHashPasswordHandler() SNMPMgrHashPasswordEvent func (obj *SNMPMgr) SetOnHashPasswordHandler(handlerFunc SNMPMgrHashPasswordEvent) ``` ## Remarks SNMPv3 passwords are hashed in order to obtain authentication and encryption keys. This is an expensive operation, and in certain situations it may be preferable to store the hashed passwords externally and supply them on demand. If a hash is required, the event fires with an empty string in the *Hash* parameter. In this case, you can choose to supply a value for the hash and stop the struct from computing the hash. The event also fires every time a hash is computed. In this case, the *Hash* parameter contains the value of the computed hash. *AuthAlgorithm* contains either 1 for HMAC-MD5-96, 2 for HMAC-SHA-96 or 3 for HMAC-192-SHA-256 # InformRequest Event ([SNMPMgr](#snmpmgr-component) Component) Fired when an InformRequest packet is received. ## Syntax *Go Syntax* ```text // SNMPMgrInformRequestEventArgs carries the SNMPMgr InformRequest event's parameters. type SNMPMgrInformRequestEventArgs struct {...} func (args *SNMPMgrInformRequestEventArgs) RequestId() int32 func (args *SNMPMgrInformRequestEventArgs) SNMPVersion() int32 func (args *SNMPMgrInformRequestEventArgs) Community() string func (args *SNMPMgrInformRequestEventArgs) User() string func (args *SNMPMgrInformRequestEventArgs) SecurityLevel() int32 func (args *SNMPMgrInformRequestEventArgs) SourceAddress() string func (args *SNMPMgrInformRequestEventArgs) SourcePort() int32 func (args *SNMPMgrInformRequestEventArgs) ErrorIndex() int32 func (args *SNMPMgrInformRequestEventArgs) SetErrorIndex(value int32) func (args *SNMPMgrInformRequestEventArgs) ErrorStatus() int32 func (args *SNMPMgrInformRequestEventArgs) SetErrorStatus(value int32) func (args *SNMPMgrInformRequestEventArgs) ErrorDescription() string func (args *SNMPMgrInformRequestEventArgs) Respond() bool func (args *SNMPMgrInformRequestEventArgs) SetRespond(value bool) // SNMPMgrInformRequestEvent defines the signature of the SNMPMgr InformRequest event's handler function. type SNMPMgrInformRequestEvent func(sender *SNMPMgr, args *SNMPMgrInformRequestEventArgs) func (obj *SNMPMgr) GetOnInformRequestHandler() SNMPMgrInformRequestEvent func (obj *SNMPMgr) SetOnInformRequestHandler(handlerFunc SNMPMgrInformRequestEvent) ``` ## Remarks The user in an InformRequest packet (SNMPv3) must match the user in the [User](#user-property-snmpmgr-component) property. If not, the request is rejected, and a [BadPacket](#badpacket-event-snmpmgr-component) event is fired before InformRequest is fired. The list of variables in the SNMP packet, including optional values and types, is provided through the Objects collection. Each object is of type SNMPObject. This type describes the [ObjId](#objid-property-snmpmgr-component), [ObjType](#objtype-property-snmpmgr-component), and [ObjValue](#objvalue-property-snmpmgr-component) of each SNMP object. These variables must be copied to another location before the event has completed executing, or they may be overridden by other events. The *SourceAddress* and *SourcePort* parameters show the address and port of the sender as reported by the TCP/IP stack. The *MessageId* parameter identifies the received request. For SNMPv3, the *User* parameter shows the user that was supplied with the packet. This parameter *MUST* be used together with the *SecurityLevel* parameter which shows the level of security in the message. The *SecurityLevel* parameter shows whether the request has been authenticated. If *SecurityLevel* is 0, the request has *NOT* been authenticated (i.e. the packet signature has not been verified). For an authenticated, non encrypted request, *SecurityLevel* is 1. For an authenticated and encrypted request, *SecurityLevel* is 2. To send a response, the *Respond* parameter must be set to true. By default, this value is false, which means no response will be sent. The *ErrorStatus* parameter may also be set to a valid SNMP status code (the default value is 0, which represents no error). The following is a list of valid SNMP status code values: | | | | --- | --- | | 0 (noError) | No error. | | 1 (tooBig) | The response cannot fit in a single SNMP message. | | 2 (noSuchName) | Variable does not exist. | | 3 (badValue) | Invalid value or syntax. | | 4 (readOnly) | Variable is read-only. | | 5 (genError) | Other error (SNMPv1). | | 6 (noAccess) | Access denied. | | 7 (wrongType) | Wrong object type. | | 8 (wrongLength) | Wrong length. | | 9 (wrongEncoding) | Wrong encoding. | | 10 (wrongValue) | Wrong value. | | 11 (noCreation) | No creation. | | 12 (inconsistentValue) | Inconsistent value. | | 13 (resourceUnavailable) | Resource unavailable. | | 14 (commitFailed) | Commit failed. | | 15 (undoFailed) | Undo failed. | | 16 (authorizationError) | Authorization error. | | 17 (notWritable) | Variable is not writable. | | 18 (inconsistentName) | Inconsistent name. | The *ErrorIndex* parameter indicates the index of the first variable (object) that caused an error. The default value is 0. Variable indexes start with 0. *ErrorIndex* has no meaning when *ErrorStatus* is 0 (no error). # PacketTrace Event ([SNMPMgr](#snmpmgr-component) Component) Fired for every packet sent or received. ## Syntax *Go Syntax* ```text // SNMPMgrPacketTraceEventArgs carries the SNMPMgr PacketTrace event's parameters. type SNMPMgrPacketTraceEventArgs struct {...} func (args *SNMPMgrPacketTraceEventArgs) Packet() []byte func (args *SNMPMgrPacketTraceEventArgs) Direction() int32 func (args *SNMPMgrPacketTraceEventArgs) PacketAddress() string func (args *SNMPMgrPacketTraceEventArgs) PacketPort() int32 // SNMPMgrPacketTraceEvent defines the signature of the SNMPMgr PacketTrace event's handler function. type SNMPMgrPacketTraceEvent func(sender *SNMPMgr, args *SNMPMgrPacketTraceEventArgs) func (obj *SNMPMgr) GetOnPacketTraceHandler() SNMPMgrPacketTraceEvent func (obj *SNMPMgr) SetOnPacketTraceHandler(handlerFunc SNMPMgrPacketTraceEvent) ``` ## Remarks The PacketTrace event shows all the packets sent or received by the struct. *Packet* contains the full contents of the datagram. *Direction* shows the direction of the packet: 1 for incoming packets, and 2 for outgoing packets. In the case of an incoming packet, *PacketAddress* and *PacketPort* identify the source of the packet. In the case of an outgoing packet, *PacketAddress* and *PacketPort* identify the destination of the packet. # ReadyToSend Event ([SNMPMgr](#snmpmgr-component) Component) Fired when the class is ready to send data. ## Syntax *Go Syntax* ```text // SNMPMgrReadyToSendEventArgs carries the SNMPMgr ReadyToSend event's parameters. type SNMPMgrReadyToSendEventArgs struct {...} // SNMPMgrReadyToSendEvent defines the signature of the SNMPMgr ReadyToSend event's handler function. type SNMPMgrReadyToSendEvent func(sender *SNMPMgr, args *SNMPMgrReadyToSendEventArgs) func (obj *SNMPMgr) GetOnReadyToSendHandler() SNMPMgrReadyToSendEvent func (obj *SNMPMgr) SetOnReadyToSendHandler(handlerFunc SNMPMgrReadyToSendEvent) ``` ## Remarks The ReadyToSend event indicates that the underlying TCP/IP subsystem is ready to accept data after a failed DataToSend(TBD. DataToSend is removed). # Report Event ([SNMPMgr](#snmpmgr-component) Component) Fired when a Report packet is received. ## Syntax *Go Syntax* ```text // SNMPMgrReportEventArgs carries the SNMPMgr Report event's parameters. type SNMPMgrReportEventArgs struct {...} func (args *SNMPMgrReportEventArgs) RequestId() int32 func (args *SNMPMgrReportEventArgs) SNMPVersion() int32 func (args *SNMPMgrReportEventArgs) Community() string func (args *SNMPMgrReportEventArgs) User() string func (args *SNMPMgrReportEventArgs) SecurityLevel() int32 func (args *SNMPMgrReportEventArgs) SourceAddress() string func (args *SNMPMgrReportEventArgs) SourcePort() int32 func (args *SNMPMgrReportEventArgs) ErrorIndex() int32 func (args *SNMPMgrReportEventArgs) ErrorStatus() int32 func (args *SNMPMgrReportEventArgs) ErrorDescription() string // SNMPMgrReportEvent defines the signature of the SNMPMgr Report event's handler function. type SNMPMgrReportEvent func(sender *SNMPMgr, args *SNMPMgrReportEventArgs) func (obj *SNMPMgr) GetOnReportHandler() SNMPMgrReportEvent func (obj *SNMPMgr) SetOnReportHandler(handlerFunc SNMPMgrReportEvent) ``` ## Remarks For SNMPv3, the *User* parameter shows the user that was supplied with the packet. This parameter *MUST* be used together with the *SecurityLevel* parameter which shows the level of security in the message. The *SecurityLevel* parameter shows whether the request has been authenticated. If *SecurityLevel* is 0, the request has *NOT* been authenticated (i.e. the packet signature has not been verified). For an authenticated, non encrypted request, *SecurityLevel* is 1. For an authenticated and encrypted request, *SecurityLevel* is 2. The list of variables in the SNMP packet, including optional values and types, is provided through the Objects collection. Each object is of type SNMPObject. This type describes the [ObjId](#objid-property-snmpmgr-component), [ObjType](#objtype-property-snmpmgr-component), and [ObjValue](#objvalue-property-snmpmgr-component) of each SNMP object. These variables must be copied to another location before the event has completed executing, or they may be overridden by other events. The *SourceAddress* and *SourcePort* parameters show the address and port of the sender as reported by the TCP/IP stack. # Response Event ([SNMPMgr](#snmpmgr-component) Component) Fired when a GetResponse packet is received. ## Syntax *Go Syntax* ```text // SNMPMgrResponseEventArgs carries the SNMPMgr Response event's parameters. type SNMPMgrResponseEventArgs struct {...} func (args *SNMPMgrResponseEventArgs) RequestId() int32 func (args *SNMPMgrResponseEventArgs) SNMPVersion() int32 func (args *SNMPMgrResponseEventArgs) Community() string func (args *SNMPMgrResponseEventArgs) User() string func (args *SNMPMgrResponseEventArgs) SecurityLevel() int32 func (args *SNMPMgrResponseEventArgs) SourceAddress() string func (args *SNMPMgrResponseEventArgs) SourcePort() int32 func (args *SNMPMgrResponseEventArgs) ErrorIndex() int32 func (args *SNMPMgrResponseEventArgs) ErrorStatus() int32 func (args *SNMPMgrResponseEventArgs) ErrorDescription() string // SNMPMgrResponseEvent defines the signature of the SNMPMgr Response event's handler function. type SNMPMgrResponseEvent func(sender *SNMPMgr, args *SNMPMgrResponseEventArgs) func (obj *SNMPMgr) GetOnResponseHandler() SNMPMgrResponseEvent func (obj *SNMPMgr) SetOnResponseHandler(handlerFunc SNMPMgrResponseEvent) ``` ## Remarks The *ErrorStatus* and *ErrorIndex* parameters contain information about possible errors. *ErrorDescription* is a textual description of *ErrorStatus*. This value is parsed directly from the SNMP response, which will be a one-based value, so a value of i here maps to index i-1 in the Objects collection. The following is a list of valid SNMP status code values: | | | | --- | --- | | 0 (noError) | No error. | | 1 (tooBig) | The response cannot fit in a single SNMP message. | | 2 (noSuchName) | Variable does not exist. | | 3 (badValue) | Invalid value or syntax. | | 4 (readOnly) | Variable is read-only. | | 5 (genError) | Other error (SNMPv1). | | 6 (noAccess) | Access denied. | | 7 (wrongType) | Wrong object type. | | 8 (wrongLength) | Wrong length. | | 9 (wrongEncoding) | Wrong encoding. | | 10 (wrongValue) | Wrong value. | | 11 (noCreation) | No creation. | | 12 (inconsistentValue) | Inconsistent value. | | 13 (resourceUnavailable) | Resource unavailable. | | 14 (commitFailed) | Commit failed. | | 15 (undoFailed) | Undo failed. | | 16 (authorizationError) | Authorization error. | | 17 (notWritable) | Variable is not writable. | | 18 (inconsistentName) | Inconsistent name. | The *ErrorIndex* parameter indicates the index of the first variable (object) that caused an error. The default value is 0. Variable indexes start with 0. *ErrorIndex* has no meaning when *ErrorStatus* is 0 (no error). The list of variables in the SNMP packet, including optional values and types, is provided through the Objects collection. Each object is of type SNMPObject. This type describes the [ObjId](#objid-property-snmpmgr-component), [ObjType](#objtype-property-snmpmgr-component), and [ObjValue](#objvalue-property-snmpmgr-component) of each SNMP object. These variables must be copied to another location before the event has completed executing, or they may be overridden by other events. The *SourceAddress* and *SourcePort* parameters show the address and port of the sender as reported by the TCP/IP stack. # SSLClientAuthentication Event ([SNMPMgr](#snmpmgr-component) Component) Fired when the client presents its credentials to the server. ## Syntax *Go Syntax* ```text // SNMPMgrSSLClientAuthenticationEventArgs carries the SNMPMgr SSLClientAuthentication event's parameters. type SNMPMgrSSLClientAuthenticationEventArgs struct {...} func (args *SNMPMgrSSLClientAuthenticationEventArgs) RemoteAddress() string func (args *SNMPMgrSSLClientAuthenticationEventArgs) RemotePort() int32 func (args *SNMPMgrSSLClientAuthenticationEventArgs) CertEncoded() []byte func (args *SNMPMgrSSLClientAuthenticationEventArgs) CertSubject() string func (args *SNMPMgrSSLClientAuthenticationEventArgs) CertIssuer() string func (args *SNMPMgrSSLClientAuthenticationEventArgs) Status() string func (args *SNMPMgrSSLClientAuthenticationEventArgs) Accept() bool func (args *SNMPMgrSSLClientAuthenticationEventArgs) SetAccept(value bool) // SNMPMgrSSLClientAuthenticationEvent defines the signature of the SNMPMgr SSLClientAuthentication event's handler function. type SNMPMgrSSLClientAuthenticationEvent func(sender *SNMPMgr, args *SNMPMgrSSLClientAuthenticationEventArgs) func (obj *SNMPMgr) GetOnSSLClientAuthenticationHandler() SNMPMgrSSLClientAuthenticationEvent func (obj *SNMPMgr) SetOnSSLClientAuthenticationHandler(handlerFunc SNMPMgrSSLClientAuthenticationEvent) ``` ## Remarks This event fires when a client connects to the struct and presents a certificate for authentication. The *Accept* parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether to continue or not. When *Accept* is False, *Status* shows why the verification failed (otherwise, *Status* contains the string "OK"). *RemoteAddress* is the IP address of the connecting client. *RemotePort* is the source port of the connecting client. *CertEncoded* is the base64 encoded certificate presented by the client. *CertSubject* is the subject of the certificate presented by the client. *CertIssuer* is the subject of the issuer of the certificate presented by the client. *Status* is the status of the certificate. *Accept* defines whether the certificate is accepted. # SSLServerAuthentication Event ([SNMPMgr](#snmpmgr-component) Component) Fires when connecting to the server. ## Syntax *Go Syntax* ```text // SNMPMgrSSLServerAuthenticationEventArgs carries the SNMPMgr SSLServerAuthentication event's parameters. type SNMPMgrSSLServerAuthenticationEventArgs struct {...} func (args *SNMPMgrSSLServerAuthenticationEventArgs) RemoteAddress() string func (args *SNMPMgrSSLServerAuthenticationEventArgs) RemotePort() int32 func (args *SNMPMgrSSLServerAuthenticationEventArgs) CertEncoded() []byte func (args *SNMPMgrSSLServerAuthenticationEventArgs) CertSubject() string func (args *SNMPMgrSSLServerAuthenticationEventArgs) CertIssuer() string func (args *SNMPMgrSSLServerAuthenticationEventArgs) Status() string func (args *SNMPMgrSSLServerAuthenticationEventArgs) Accept() bool func (args *SNMPMgrSSLServerAuthenticationEventArgs) SetAccept(value bool) // SNMPMgrSSLServerAuthenticationEvent defines the signature of the SNMPMgr SSLServerAuthentication event's handler function. type SNMPMgrSSLServerAuthenticationEvent func(sender *SNMPMgr, args *SNMPMgrSSLServerAuthenticationEventArgs) func (obj *SNMPMgr) GetOnSSLServerAuthenticationHandler() SNMPMgrSSLServerAuthenticationEvent func (obj *SNMPMgr) SetOnSSLServerAuthenticationHandler(handlerFunc SNMPMgrSSLServerAuthenticationEvent) ``` ## Remarks This event is where the client can decide whether to continue with the connection process or not. The *Accept* parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether to continue or not. When *Accept* is False, *Status* shows why the verification failed (otherwise, *Status* contains the string "OK"). If it is decided to continue, you can override and accept the certificate by setting the *Accept* parameter to True. *RemoteAddress* is the IP address of the server. *RemotePort* is the source port of the server. *CertEncoded* is the base64 encoded certificate presented by the server. *CertSubject* is the subject of the certificate presented by the server. *CertIssuer* is the subject of the issuer of the certificate presented by the server. *Status* is the status of the certificate. *Accept* defines whether the certificate is accepted. # SSLStatus Event ([SNMPMgr](#snmpmgr-component) Component) Shows the progress of the secure connection. ## Syntax *Go Syntax* ```text // SNMPMgrSSLStatusEventArgs carries the SNMPMgr SSLStatus event's parameters. type SNMPMgrSSLStatusEventArgs struct {...} func (args *SNMPMgrSSLStatusEventArgs) RemoteAddress() string func (args *SNMPMgrSSLStatusEventArgs) RemotePort() int32 func (args *SNMPMgrSSLStatusEventArgs) Message() string // SNMPMgrSSLStatusEvent defines the signature of the SNMPMgr SSLStatus event's handler function. type SNMPMgrSSLStatusEvent func(sender *SNMPMgr, args *SNMPMgrSSLStatusEventArgs) func (obj *SNMPMgr) GetOnSSLStatusHandler() SNMPMgrSSLStatusEvent func (obj *SNMPMgr) SetOnSSLStatusHandler(handlerFunc SNMPMgrSSLStatusEvent) ``` ## Remarks The event is fired for informational and logging purposes only. It is used to track the progress of the connection. *RemoteAddress* is the IP address of the remote machine. *RemotePort* is the port of the remote machine. *Message* is the log message. # Trap Event ([SNMPMgr](#snmpmgr-component) Component) Fired when a SNMP trap packet is received. ## Syntax *Go Syntax* ```text // SNMPMgrTrapEventArgs carries the SNMPMgr Trap event's parameters. type SNMPMgrTrapEventArgs struct {...} func (args *SNMPMgrTrapEventArgs) RequestId() int32 func (args *SNMPMgrTrapEventArgs) SNMPVersion() int32 func (args *SNMPMgrTrapEventArgs) Community() string func (args *SNMPMgrTrapEventArgs) User() string func (args *SNMPMgrTrapEventArgs) SecurityLevel() int32 func (args *SNMPMgrTrapEventArgs) TrapOID() string func (args *SNMPMgrTrapEventArgs) TimeStamp() int64 func (args *SNMPMgrTrapEventArgs) SourceAddress() string func (args *SNMPMgrTrapEventArgs) SourcePort() int32 // SNMPMgrTrapEvent defines the signature of the SNMPMgr Trap event's handler function. type SNMPMgrTrapEvent func(sender *SNMPMgr, args *SNMPMgrTrapEventArgs) func (obj *SNMPMgr) GetOnTrapHandler() SNMPMgrTrapEvent func (obj *SNMPMgr) SetOnTrapHandler(handlerFunc SNMPMgrTrapEvent) ``` ## Remarks The **SNMPTrapMgr** struct should normally be used to receive traps, since it was designed and contains functionality specifically for that purpose. The SNMPMgr component can only receive traps from the agent that it is has most recently discovered with the [Discover](#discover-method-snmpmgr-component) method. The *TrapOID* and *TimeStamp* parameters contain the Trap OID and TimeStamp. In the case of an SNMPv1 trap, there are two possible scenarios: First, if the enterprise of the trap is "1.3.6.1.6.3.1.1.5", *TrapOID* will be a concatenation of TrapEnterprise and GenericTrap + 1. For instance a TrapOID of "1.3.6.1.6.3.1.1.5.5" has a TrapEnterprise of "1.3.6.1.6.3.1.1.5" and a GenericTrap of "4". Second, In all other cases *TrapOID* will be a concatenation of the values for TrapEnterprise, GenericTrap, and SpecificTrap, separated by '.'. For SNMPv2 and above, they are read from the variable-value list (if available). For SNMPv3, the *User* parameter shows the user that was supplied with the packet. This parameter *MUST* be used together with the *SecurityLevel* parameter which shows the level of security in the message. The *SecurityLevel* parameter shows whether the request has been authenticated. If *SecurityLevel* is 0, the request has *NOT* been authenticated (i.e. the packet signature has not been verified). For an authenticated, non encrypted request, *SecurityLevel* is 1. For an authenticated and encrypted request, *SecurityLevel* is 2. The SNMPMgr struct is limited to accepting authenticated traps only for the user specified in [User](#user-property-snmpmgr-component) and Password and from the engine specified in [RemoteEngineId](#remoteengineid-property-snmpmgr-component) with time parameters in [RemoteEngineBoots](#remoteengineboots-property-snmpmgr-component) and [RemoteEngineTime](#remoteenginetime-property-snmpmgr-component) (usually this is the SNMP engine discovered through the last call to [Discover](#discover-method-snmpmgr-component)). If authenticated traps come from a different engine, or for a different user, they are ignored, and a [BadPacket](#badpacket-event-snmpmgr-component) event is fired instead. The list of variables in the SNMP packet, including optional values and types, is provided through the Objects collection. Each object is of type SNMPObject. This type describes the [ObjId](#objid-property-snmpmgr-component), [ObjType](#objtype-property-snmpmgr-component), and [ObjValue](#objvalue-property-snmpmgr-component) of each SNMP object. These variables must be copied to another location before the event has completed executing, or they may be overridden by other events. The *SourceAddress* and *SourcePort* parameters show the address and port of the sender as reported by the TCP/IP stack. # Config Settings ([SNMPMgr](#snmpmgr-component) Component) The struct accepts one or more of the following *configuration settings*. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the struct, access to these *internal properties* is provided through the [Config](#config-method-snmpmgr-component) method. ### SNMPManager Config Settings **AllowSingleStepDiscovery**: Whether to allow discovery to be completed in a single step.When making a discovery request in SNMPv3 while this setting is set to False (default), the component will send a second discovery request even if the agent responds to the first request with the EngineBoots and EngineTime. If set to True, the component will skip the second request if all the necessary information is returned in the first response. **CheckMessageOrigin**: Whether to match the origin IP address when receiving responses.This setting specifies whether the struct matches the source IP address in the response to the destination IP address of the request. When True (default) the struct makes sure that response are received from the same IP to which the request was sent. In most cases this does not need to be changed. If there is a specific reason that responses are expected to originate from a different IP from that which the request was sent, this may be set to False. When False the struct will not check the origin of received responses. **CheckSNMPVersion**: Whether to check the version of incoming packets.By default only packets matching [SNMPVersion](#snmpversion-property-snmpmgr-component) can be received. Set this to *false* to ignore the version of incoming packets. The default is *true*. **CompatibilityMode**: Whether to operate the component in a specific compatibility mode.This setting will cause the component to operate in a manner different than normal so that it is compatible with third-party products and libraries. The following table lists the possible values for this setting: | | | | --- | --- | | 0 (default) | Component operates normally for greatest compatibility. | | 1 | Component uses SNMP4j-compatible encryption (AES192 and AES256). | | 2 | Component automatically detects whether to use SNMP4j-compatible encryption (AES192 and AES256). Note: This option is only applicable when receiving packets. If you are using [SNMPMgr](#snmpmgr-component) or sending secure traps, you will need to select either 0 or 1. | **ContextEngineId**: Sets the context engine id of the SNMP entity. If set, the context engine id included in the PDU will be set. **ContextName**: Sets the context name of the SNMP entity. If set, the context name included in the PDU will be set. **DecryptLogPackets**: Whether to decrypt logged packets.When set to *true* this setting will cause the struct to decrypt packets logged in [PacketTrace](#packettrace-event-snmpmgr-component). This only applies when using SNMP Version 3. The default is *false*. **ForceLocalPort**: Forces the struct to bind to a specific port. The default value is True, which makes the struct throw an error if [LocalPort](#localport-property-snmpmgr-component) is busy. When [ForceLocalPort](#ForceLocalPort) is set to False and the port is busy, the struct silently chooses another random port. **IgnoreDuplicateResponse**: Whether to ignore duplicate responses.In some scenarios an agent may send a duplicate response (identified by it's *RequestID*). To prevent processing of a duplicate response set this to *true*. The default is *false* **IgnorePortMismatch**: Whether to check if the port matches when a response is received.When a response is received, the struct will validate that the port in the response is the same as the port in the request. To disable this, set this to True. **IncomingContextEngineId**: The engine Id of the received packet.This setting holds the engine Id of the received packet. This may be queried at any time, including from within an event, and returns the engine Id of the received packet. This is not needed in most cases, but can be used to store the incoming engine Id to send an asynchronous response later. This value is read-only. **IncomingContextName**: The context name of the received packet.This setting holds the context name of the received packet. This may be queried at any time, including from within an event, and returns the context name of the received packet. This is not needed in most cases, but can be used to store the incoming context name to send an asynchronous response later. This value is read-only. **MsgMaxSize**: The maximum supported message size.This setting specifies the maximum supported message size in bytes. This is only applicable when [SNMPVersion](#snmpversion-property-snmpmgr-component) is set to 3. This corresponds to the "msgMaxSize" field in the request. The default maximum message size is *16384* bytes. **SourceAddress**: The source address of the received packet.This setting holds the source address of the received packet. This may be queried at any time, including from within an event, and returns the source address of the received packet. This value is read-only. **SourcePort**: The source port of the received packet.This setting holds the source port of the received packet. This may be queried at any time, including from within an event, and returns the source port of the received packet. This value is read-only. **TimeoutInMilliseconds**: The timeout is treated as milliseconds.Setting **TimeoutInMilliseconds** to true causes the struct to use the value in [Timeout](#timeout-property-snmpmgr-component) as milliseconds instead of seconds, which is the default. **WalkInsideRange**: Stops the SNMP walk if the OID value returned from an agent is outside the table.When **WalkInsideRange** is set to true the Walk will continue only while the OID Values returned from the agent are greater than the current OID Value. If an object is returned with an OID value that is out of this range it is not added to the Objects collection, the [Error](#error-event-snmpmgr-component) event will fire, and [Walk](#walk-method-snmpmgr-component) will return. The default value is true. **WalkStartOID**: Specifies the OID to be used when a Walk is performed.When this property is set and [Walk](#walk-method-snmpmgr-component) is called, the first request sent will contain the specified **WalkStartOID** value. This feature is particularly useful in the case of errors, such as timeouts, that may occur during a Walk. In such a case, you can set **WalkStartOID** to the last OID returned before the Timeout occurred then call [Walk](#walk-method-snmpmgr-component) again (using the original tableOID parameter value). This will allow you to continue the Walk where it left off (when the Timeout error occurred). Note that when [StoreWalkObjects](#storewalkobjects-property-snmpmgr-component) is set to true and **WalkStartOID** is set, the existing entries in Objects will be maintained when [Walk](#walk-method-snmpmgr-component) is called and new returned objects will be added (just as if no error occurred in the initial [Walk](#walk-method-snmpmgr-component) call). ### UDP Config Settings **CaptureIPPacketInfo**: Used to capture the packet information.If this is set to True, the component will capture the IP packet information. The default value for this setting is False. NOTE: This configuration setting is available only in Windows. **DelayHostResolution**: Whether the hostname is resolved when RemoteHost is set.This configuration setting specifies whether a hostname is resolved immediately when [RemoteHost](#remotehost-property-snmpmgr-component) is set. If *true* the struct will resolve the hostname and the IP address will be present in the [RemoteHost](#remotehost-property-snmpmgr-component) property. If *false*, the hostname is not resolved until needed by the component when a method to connect or send data is called. If desired, ResolveRemoteHost may be called to manually resolve the value in [RemoteHost](#remotehost-property-snmpmgr-component) at any time. The default value is *false*. **DestinationAddress**: Used to get the destination address from the packet information.If [CaptureIPPacketInfo](#CaptureIPPacketInfo) is set to True, then this will be populated with the packet's destination address when a packet is received. This information will be accessible in the DataIn event. NOTE: This configuration setting is available only in Windows. **DontFragment**: Used to set the Don't Fragment flag of outgoing packets.When set to True, packets sent by the struct will have the Don't Fragment flag set. The default value is False. **LocalHost**: The name of the local host through which connections are initiated or accepted. The [LocalHost](#localhost-property-snmpmgr-component) setting contains the name of the local host as obtained by the *gethostname()* system call, or if the user has assigned an IP address, the value of that address. In multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the struct initiate connections (or accept in the case of server structs) only through that interface. If the struct is connected, the [LocalHost](#localhost-property-snmpmgr-component) setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface). **LocalPort**: The port in the local host where the struct binds. This configuration setting must be set before a connection is attempted. It instructs the struct to bind to a specific port (or communication endpoint) in the local machine. Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by [LocalPort](#localport-property-snmpmgr-component) after the connection is established. [LocalPort](#localport-property-snmpmgr-component) cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error. This configuration setting is useful when trying to connect to services that require a trusted port on the client side. An example is the remote shell (rsh) service in UNIX systems. **MaxPacketSize**: The maximum length of the packets that can be received.This configuration setting specifies the maximum size of the datagrams that the struct will accept without truncation. **QOSDSCPValue**: Used to specify an arbitrary QOS/DSCP setting (optional).[UseConnection](#UseConnection) must be True to use this configuration setting. This option allows you to specify an arbitrary DSCP value between 0 and 63. The default is 0. When set to the default value, the component will not set a DSCP value. NOTE: This configuration setting uses the qWAVE API and is available only on Windows 7, Windows Server 2008 R2, and later. **QOSTrafficType**: Used to specify QOS/DSCP settings (optional).[UseConnection](#UseConnection) must be True to use this setting. You may specify either the text or integer values: BestEffort (0), Background (1), ExcellentEffort (2), AudioVideo (3), Voice (4), and Control (5). NOTE: This configuration setting uses the qWAVE API and is available only on Windows Vista and Windows Server 2008 or above. NOTE: QOSTrafficType must be set before setting [Active](#active-property-snmpmgr-component) to True. **ShareLocalPort**: If set to True, allows more than one instance of the struct to be active on the same local port.This option must be set before the struct is activated through the [Active](#active-property-snmpmgr-component) property or it will have no effect. The default value for this setting is False. **UseConnection**: Determines whether to use a connected socket.[UseConnection](#UseConnection) specifies whether or not the struct should use a connected socket. The connection is defined as an association in between the local address/port and the remote address/port. As such, this is not a connection in the traditional Transmission Control Protocol (TCP) sense. It means only that the struct will send and receive data to and from the specified destination. The default value for this setting is False. **UseIPv6**: Whether or not to use IPv6.By default, the component expects an IPv4 address for local and remote host properties, and it will create an IPv4 socket. To use IPv6 instead, set this to True. ### Socket Config Settings **AbsoluteTimeout**: Determines whether timeouts are inactivity timeouts or absolute timeouts.If [AbsoluteTimeout](#AbsoluteTimeout) is set to True, any method that does not complete within [Timeout](#timeout-property-snmpmgr-component) seconds will be aborted. By default, *AbsoluteTimeout* is False, and the timeout is an inactivity timeout. NOTE: This option is not valid for User Datagram Protocol (UDP) ports. **FirewallData**: Used to send extra data to the firewall.When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g., headers for custom authentication schemes). **InBufferSize**: The size in bytes of the incoming queue of the socket.This is the size of an internal queue in the Transmission Control Protocol (TCP)/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. In some cases, increasing the value of the *InBufferSize* setting can provide significant improvements in performance. Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the struct is activated the *InBufferSize* reverts to its defined size. The same happens if you attempt to make it too large or too small. **OutBufferSize**: The size in bytes of the outgoing queue of the socket.This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. In some cases, increasing the value of the *OutBufferSize* setting can provide significant improvements in performance. Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the struct is activated the *OutBufferSize* reverts to its defined size. The same happens if you attempt to make it too large or too small. ### Base Config Settings **BuildInfo**: Information about the product's build.When queried, this setting will return a string containing information about the product's build. **CodePage**: The system code page used for Unicode to Multibyte translations.The default code page is Unicode UTF-8 (65001). The following is a list of valid code page identifiers: | | | | --- | --- | | Identifier | Name | | 037 | IBM EBCDIC - U.S./Canada | | 437 | OEM - United States | | 500 | IBM EBCDIC - International | | 708 | Arabic - ASMO 708 | | 709 | Arabic - ASMO 449+, BCON V4 | | 710 | Arabic - Transparent Arabic | | 720 | Arabic - Transparent ASMO | | 737 | OEM - Greek (formerly 437G) | | 775 | OEM - Baltic | | 850 | OEM - Multilingual Latin I | | 852 | OEM - Latin II | | 855 | OEM - Cyrillic (primarily Russian) | | 857 | OEM - Turkish | | 858 | OEM - Multilingual Latin I + Euro symbol | | 860 | OEM - Portuguese | | 861 | OEM - Icelandic | | 862 | OEM - Hebrew | | 863 | OEM - Canadian-French | | 864 | OEM - Arabic | | 865 | OEM - Nordic | | 866 | OEM - Russian | | 869 | OEM - Modern Greek | | 870 | IBM EBCDIC - Multilingual/ROECE (Latin-2) | | 874 | ANSI/OEM - Thai (same as 28605, ISO 8859-15) | | 875 | IBM EBCDIC - Modern Greek | | 932 | ANSI/OEM - Japanese, Shift-JIS | | 936 | ANSI/OEM - Simplified Chinese (PRC, Singapore) | | 949 | ANSI/OEM - Korean (Unified Hangul Code) | | 950 | ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC) | | 1026 | IBM EBCDIC - Turkish (Latin-5) | | 1047 | IBM EBCDIC - Latin 1/Open System | | 1140 | IBM EBCDIC - U.S./Canada (037 + Euro symbol) | | 1141 | IBM EBCDIC - Germany (20273 + Euro symbol) | | 1142 | IBM EBCDIC - Denmark/Norway (20277 + Euro symbol) | | 1143 | IBM EBCDIC - Finland/Sweden (20278 + Euro symbol) | | 1144 | IBM EBCDIC - Italy (20280 + Euro symbol) | | 1145 | IBM EBCDIC - Latin America/Spain (20284 + Euro symbol) | | 1146 | IBM EBCDIC - United Kingdom (20285 + Euro symbol) | | 1147 | IBM EBCDIC - France (20297 + Euro symbol) | | 1148 | IBM EBCDIC - International (500 + Euro symbol) | | 1149 | IBM EBCDIC - Icelandic (20871 + Euro symbol) | | 1200 | Unicode UCS-2 Little-Endian (BMP of ISO 10646) | | 1201 | Unicode UCS-2 Big-Endian | | 1250 | ANSI - Central European | | 1251 | ANSI - Cyrillic | | 1252 | ANSI - Latin I | | 1253 | ANSI - Greek | | 1254 | ANSI - Turkish | | 1255 | ANSI - Hebrew | | 1256 | ANSI - Arabic | | 1257 | ANSI - Baltic | | 1258 | ANSI/OEM - Vietnamese | | 1361 | Korean (Johab) | | 10000 | MAC - Roman | | 10001 | MAC - Japanese | | 10002 | MAC - Traditional Chinese (Big5) | | 10003 | MAC - Korean | | 10004 | MAC - Arabic | | 10005 | MAC - Hebrew | | 10006 | MAC - Greek I | | 10007 | MAC - Cyrillic | | 10008 | MAC - Simplified Chinese (GB 2312) | | 10010 | MAC - Romania | | 10017 | MAC - Ukraine | | 10021 | MAC - Thai | | 10029 | MAC - Latin II | | 10079 | MAC - Icelandic | | 10081 | MAC - Turkish | | 10082 | MAC - Croatia | | 12000 | Unicode UCS-4 Little-Endian | | 12001 | Unicode UCS-4 Big-Endian | | 20000 | CNS - Taiwan | | 20001 | TCA - Taiwan | | 20002 | Eten - Taiwan | | 20003 | IBM5550 - Taiwan | | 20004 | TeleText - Taiwan | | 20005 | Wang - Taiwan | | 20105 | IA5 IRV International Alphabet No. 5 (7-bit) | | 20106 | IA5 German (7-bit) | | 20107 | IA5 Swedish (7-bit) | | 20108 | IA5 Norwegian (7-bit) | | 20127 | US-ASCII (7-bit) | | 20261 | T.61 | | 20269 | ISO 6937 Non-Spacing Accent | | 20273 | IBM EBCDIC - Germany | | 20277 | IBM EBCDIC - Denmark/Norway | | 20278 | IBM EBCDIC - Finland/Sweden | | 20280 | IBM EBCDIC - Italy | | 20284 | IBM EBCDIC - Latin America/Spain | | 20285 | IBM EBCDIC - United Kingdom | | 20290 | IBM EBCDIC - Japanese Katakana Extended | | 20297 | IBM EBCDIC - France | | 20420 | IBM EBCDIC - Arabic | | 20423 | IBM EBCDIC - Greek | | 20424 | IBM EBCDIC - Hebrew | | 20833 | IBM EBCDIC - Korean Extended | | 20838 | IBM EBCDIC - Thai | | 20866 | Russian - KOI8-R | | 20871 | IBM EBCDIC - Icelandic | | 20880 | IBM EBCDIC - Cyrillic (Russian) | | 20905 | IBM EBCDIC - Turkish | | 20924 | IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol) | | 20932 | JIS X 0208-1990 & 0121-1990 | | 20936 | Simplified Chinese (GB2312) | | 21025 | IBM EBCDIC - Cyrillic (Serbian, Bulgarian) | | 21027 | Extended Alpha Lowercase | | 21866 | Ukrainian (KOI8-U) | | 28591 | ISO 8859-1 Latin I | | 28592 | ISO 8859-2 Central Europe | | 28593 | ISO 8859-3 Latin 3 | | 28594 | ISO 8859-4 Baltic | | 28595 | ISO 8859-5 Cyrillic | | 28596 | ISO 8859-6 Arabic | | 28597 | ISO 8859-7 Greek | | 28598 | ISO 8859-8 Hebrew | | 28599 | ISO 8859-9 Latin 5 | | 28605 | ISO 8859-15 Latin 9 | | 29001 | Europa 3 | | 38598 | ISO 8859-8 Hebrew | | 50220 | ISO 2022 Japanese with no halfwidth Katakana | | 50221 | ISO 2022 Japanese with halfwidth Katakana | | 50222 | ISO 2022 Japanese JIS X 0201-1989 | | 50225 | ISO 2022 Korean | | 50227 | ISO 2022 Simplified Chinese | | 50229 | ISO 2022 Traditional Chinese | | 50930 | Japanese (Katakana) Extended | | 50931 | US/Canada and Japanese | | 50933 | Korean Extended and Korean | | 50935 | Simplified Chinese Extended and Simplified Chinese | | 50936 | Simplified Chinese | | 50937 | US/Canada and Traditional Chinese | | 50939 | Japanese (Latin) Extended and Japanese | | 51932 | EUC - Japanese | | 51936 | EUC - Simplified Chinese | | 51949 | EUC - Korean | | 51950 | EUC - Traditional Chinese | | 52936 | HZ-GB2312 Simplified Chinese | | 54936 | Windows XP: GB18030 Simplified Chinese (4 Byte) | | 57002 | ISCII Devanagari | | 57003 | ISCII Bengali | | 57004 | ISCII Tamil | | 57005 | ISCII Telugu | | 57006 | ISCII Assamese | | 57007 | ISCII Oriya | | 57008 | ISCII Kannada | | 57009 | ISCII Malayalam | | 57010 | ISCII Gujarati | | 57011 | ISCII Punjabi | | 65000 | Unicode UTF-7 | | 65001 | Unicode UTF-8 | The following is a list of valid code page identifiers for Mac OS only: | | | | --- | --- | | Identifier | Name | | 1 | ASCII | | 2 | NEXTSTEP | | 3 | JapaneseEUC | | 4 | UTF8 | | 5 | ISOLatin1 | | 6 | Symbol | | 7 | NonLossyASCII | | 8 | ShiftJIS | | 9 | ISOLatin2 | | 10 | Unicode | | 11 | WindowsCP1251 | | 12 | WindowsCP1252 | | 13 | WindowsCP1253 | | 14 | WindowsCP1254 | | 15 | WindowsCP1250 | | 21 | ISO2022JP | | 30 | MacOSRoman | | 10 | UTF16String | | 0x90000100 | UTF16BigEndian | | 0x94000100 | UTF16LittleEndian | | 0x8c000100 | UTF32String | | 0x98000100 | UTF32BigEndian | | 0x9c000100 | UTF32LittleEndian | | 65536 | Proprietary | **LicenseInfo**: Information about the current license.When queried, this setting will return a string containing information about the license this instance of a struct is using. It will return the following information: - Product: The product the license is for. - Product Key: The key the license was generated from. - License Source: Where the license was found (e.g., RuntimeLicense, License File). - License Type: The type of license installed (e.g., Royalty Free, Single Server). - Last Valid Build: The last valid build number for which the license will work. **MaskSensitiveData**: Whether sensitive data is masked in log messages.In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to *true* to mask sensitive data. The default is *true*. **UseInternalSecurityAPI**: Whether or not to use the system security libraries or an internal implementation. When set to *false*, the struct will use the system security libraries by default to perform cryptographic functions where applicable. Setting this configuration setting to *true* tells the struct to use the internal implementation instead of using the system security libraries. On Windows, this setting is set to *false* by default. On Linux/macOS, this setting is set to *true* by default. To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the [OpenSSL Notes](platforms.md) section. # Trappable Errors ([SNMPMgr](#snmpmgr-component) Component) ### SNMPMgr Errors | | | | --- | --- | | 201 | Timeout. | | 301 | Bad Object Index when accessing the Obj* properties. Timeout when performing an operation. Check the error description for details. | | 302 | Value exceeds maximum number of objects allowed. | | 303 | The value must be an IP address in dotted format. | | 305 | Unsupported SNMP version. | | 306 | Unknown PDU type. | | 307 | The struct is busy performing the current action. | | 308 | Verification failed. | | 309 | Missing password for Verification. | | 310 | Missing signature. | | 311 | Missing remote time. | | 312 | Missing timeout value. | | 313 | Decryption Failed. | | 314 | Missing password for decryption. | | 315 | Not encrypted. | | 316 | Security model not supported. | | 317 | Defective packet | | 318 | Not from bound point. | | 319 | Operation not permitted in current role. | | 320 | Bad packet. | | 321 | Message not authenticated. | | 322 | No such oid. | | 323 | Missing privacy parameter. | | 324 | Bad engine id. | | 325 | Bad time frame. | | 326 | Bad user name. | | 327 | Security level was not accepted. | | 328 | Discovery failed. | | 329 | Incorrect key length. | | 330 | No authentication password supplied. | | 333 | Returned OID was out of range. This is applicable only when [WalkInsideRange](#WalkInsideRange) is set to true. | The class may also return one of the following error codes, which are inherited from other classes. ### UDP Errors | | | | --- | --- | | 104 | UDP is already [Active](#active-property-snmpmgr-component). | | 106 | You cannot change the [LocalPort](#localport-property-snmpmgr-component) while the struct is [Active](#active-property-snmpmgr-component). | | 107 | You cannot change the [LocalHost](#localhost-property-snmpmgr-component) at this time. A connection is in progress. | | 109 | The struct must be [Active](#active-property-snmpmgr-component) for this operation. | | 112 | You cannot change [MaxPacketSize](#MaxPacketSize) while the struct is [Active](#active-property-snmpmgr-component). | | 113 | You cannot change [ShareLocalPort](#ShareLocalPort) option while the struct is [Active](#active-property-snmpmgr-component). | | 114 | You cannot change [RemoteHost](#remotehost-property-snmpmgr-component) when [UseConnection](#UseConnection) is set and the struct [Active](#active-property-snmpmgr-component). | | 115 | You cannot change [RemotePort](#remoteport-property-snmpmgr-component) when [UseConnection](#UseConnection) is set and the struct is [Active](#active-property-snmpmgr-component). | | 116 | [RemotePort](#remoteport-property-snmpmgr-component) cannot be zero when [UseConnection](#UseConnection) is set. Please specify a valid service port number. | | 117 | You cannot change [UseConnection](#UseConnection) while the struct is [Active](#active-property-snmpmgr-component). | | 118 | Message cannot be longer than [MaxPacketSize](#MaxPacketSize). | | 119 | Message too short. | | 434 | Unable to convert string to selected CodePage. | ### SSL Errors | | | | --- | --- | | 270 | Cannot load specified security library. | | 271 | Cannot open certificate store. | | 272 | Cannot find specified certificate. | | 273 | Cannot acquire security credentials. | | 274 | Cannot find certificate chain. | | 275 | Cannot verify certificate chain. | | 276 | Error during handshake. | | 280 | Error verifying certificate. | | 281 | Could not find client certificate. | | 282 | Could not find server certificate. | | 283 | Error encrypting data. | | 284 | Error decrypting data. | ### TCP/IP Errors | | | | --- | --- | | 10004 | [10004] Interrupted system call. | | 10009 | [10009] Bad file number. | | 10013 | [10013] Access denied. | | 10014 | [10014] Bad address. | | 10022 | [10022] Invalid argument. | | 10024 | [10024] Too many open files. | | 10035 | [10035] Operation would block. | | 10036 | [10036] Operation now in progress. | | 10037 | [10037] Operation already in progress. | | 10038 | [10038] Socket operation on nonsocket. | | 10039 | [10039] Destination address required. | | 10040 | [10040] Message is too long. | | 10041 | [10041] Protocol wrong type for socket. | | 10042 | [10042] Bad protocol option. | | 10043 | [10043] Protocol is not supported. | | 10044 | [10044] Socket type is not supported. | | 10045 | [10045] Operation is not supported on socket. | | 10046 | [10046] Protocol family is not supported. | | 10047 | [10047] Address family is not supported by protocol family. | | 10048 | [10048] Address already in use. | | 10049 | [10049] Cannot assign requested address. | | 10050 | [10050] Network is down. | | 10051 | [10051] Network is unreachable. | | 10052 | [10052] Net dropped connection or reset. | | 10053 | [10053] Software caused connection abort. | | 10054 | [10054] Connection reset by peer. | | 10055 | [10055] No buffer space available. | | 10056 | [10056] Socket is already connected. | | 10057 | [10057] Socket is not connected. | | 10058 | [10058] Cannot send after socket shutdown. | | 10059 | [10059] Too many references, cannot splice. | | 10060 | [10060] Connection timed out. | | 10061 | [10061] Connection refused. | | 10062 | [10062] Too many levels of symbolic links. | | 10063 | [10063] File name is too long. | | 10064 | [10064] Host is down. | | 10065 | [10065] No route to host. | | 10066 | [10066] Directory is not empty | | 10067 | [10067] Too many processes. | | 10068 | [10068] Too many users. | | 10069 | [10069] Disc Quota Exceeded. | | 10070 | [10070] Stale NFS file handle. | | 10071 | [10071] Too many levels of remote in path. | | 10091 | [10091] Network subsystem is unavailable. | | 10092 | [10092] WINSOCK DLL Version out of range. | | 10093 | [10093] Winsock is not loaded yet. | | 11001 | [11001] Host not found. | | 11002 | [11002] Nonauthoritative 'Host not found' (try again or check DNS setup). | | 11003 | [11003] Nonrecoverable errors: FORMERR, REFUSED, NOTIMP. | | 11004 | [11004] Valid name, no data record (check DNS setup). |