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Field Description
Remote TCP Address The TCP/IP address of the RNI to which to connect. For an uplink
session, this field is read-only. The remote TCP address must be
specified in the form x.x.x.x, where x represents an integer
between 0 and 255. A DNS-resolvable hostname can also be
specified for this field.
Remote TCP Port The port number that the RNI uses for incoming connections from
the OpenLDV application. For an uplink session, this field is
read-only. Valid port numbers are 1 to 65535.
Authentication Key Handling
Authentication key handling is an essential part of any lookup extension
component. Your custom lookup extension component must fill the
authentication key fields into the SCO, and properly handle changes to the
authentication key fields. Figure 18 shows a high-level view of authentication
key handling. The figure shows a sample authentication key (ABCD) that does
not use the required format.
RNI Device
Authentication Key: ABCD
xDriver Connection
External Database
xDriver Lookup Extension
Component Accesses
External Database and
Returns Current
Authentication Key
LNS Server with xDriver
Authentication Key
Handling
Figure 18. Authentication Key Handling
Note: This section refers to the methods that you can use when programming
your custom lookup extension component. For more information about these
methods, see Appendix C, Custom Lookup Extension Component Programming,
on page 161.
Setting the Current Authentication Key
When an xDriver session is initiated, the lookup extension component must
access the database, extract the authentication flag for the RNI from the
database, and fill it into the SCO using the SetAuthenticationFlag method. If
the authentication flag is True, indicating that authentication is currently
enabled, the lookup extension component must also extract the current MD5
authentication key for the RNI from the database, and fill it into the SCO using
the SetCurrentAuthenticationKey method. The authentication key must be a
- OpenLDV 1
- Programmer’s Guide 1
- Welcome 3
- Audience 3
- Examples 4
- Related Documentation 4
- Table of Contents 5
- Introduction 9
- ONWORKS network: 10
- OpenLDV Driver 11
- Client Applications 11
- Network Interfaces 12
- Installing the OpenLDV SDK 14
- Using the OpenLDV API 17
- ONWORKS network 18
- Application Layer 20
- Presentation Layer 21
- Overview of the OpenLDV API 21
- The OpenLDV API 23
- ONWORKS interface device 24
- ONWORKS name (such as 24
- LDVDevices Structure 46
- LdvCombineFlags Enumeration 47
- LdvDeviceCaps Enumeration 48
- LDVDriverInfo Structure 50
- LdvDriverID Enumeration 51
- LdvDriverType Enumeration 52
- OpenLDV API Return Codes 53
- ONWORKS Interfaces 57
- msgSize); 62
- Constructing Messages 66
- Application Buffer Structure 66
- Layer 2 Buffer Structure 69
- Application Layer Header 69
- Layer 2 Header 69
- Layer 5 Buffer Structure 70
- Message Header 70
- ExpMsgHdr 71
- NetVarHdr 73
- ONWORKS transceivers 74
- Network Address 75
- RcvAddrDtl 78
- RespAddrDtl 80
- Message Data 81
- UnprocessedNV 82
- ExplicitMsg 82
- Downlink Commands 84
- Uplink Commands 85
- Immediate Commands 85
- Network Interface Commands 85
- Common Definitions 98
- Dispatchers 98
- Toolkits and User Interface 99
- Developer Example Diagram 100
- ONWORKS 101
- LNS Applications for xDriver 106
- Extending xDriver 107
- Downlink Sessions 108
- 102 Extending xDriver 110
- Typical Downlink Scenario 111
- Uplink Sessions 112
- ONWORKS network, in a 114
- Typical Uplink Scenario 115
- Session Control Object 116
- Authentication Key Handling 119
- ONWORKS \xDriver\Components 123
- Add a COM Object 124
- Test the Lookup Extension 132
- Optional Steps 132
- Add a COM Class 135
- LNS Programming with xDriver 145
- ONWORKS networks 147
- ONWORKS networks by 148
- Uplink Sample Application 150
- Custom Network Interfaces 155
- Overview 156
- Windows Registry Entries 158
- LNS Methods and Events for 161
- AcceptIncomingSession 162
- Remarks 162
- BeginIncomingSessionEvents 163
- EndIncomingSessionEvents 163
- NetworkInterfaces.Item( ) 164
- Syntax 164
- OnIncomingSessionEvent 165
- ReleasePendingUpdates 166
- Custom Lookup Extension 169
- Component Programming 169
- ILdvxConfigure Interface 170
- SetInstance Method 170
- Returns 171
- SetOptions Method 171
- ILdvxLookup Interface 172
- DownlinkLookup Method 172
- UpdateLookup Method 173
- UplinkLookup Method 173
- ILdvxSCO Interface 174
- GetDownlinkKey Method 177
- GetUplinkKey Method 180
- SetAuthenticationFlag Method 181
- SetDownlinkKey Method 183
- SetEncryptionType Method 183
- SetLNSNetworkName Method 184
- SetUplinkKey Method 186
- ILdvxSCO_TCP Interface 186
- GetRemoteTCPAddress Method 187
- GetRemoteTCPPort Method 187
- SetRemoteTCPAddress Method 188
- SetRemoteTCPPort Method 188
- ILdvxSCO2 Interface 189
- GetNeuronID Method 189
- 184 Index 192
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