OTCfgTCPDNSServersList, OTCfgTCPLocks | Apple Network Setup instruction

C H A P T E R 4

Network Setup Protocol Structures and Data Types

The preference type for OTCfgTCPLeaseDHCPInfo is kOTCfgTCPDHCPLeaseInfoPref, which is deﬁned as 'dclt'.

OTCfgTCPDNSServersList

The OTCfgTCPDNSServersList structure stores the list of name servers that have been conﬁgured for an interface.

struct OTCfgTCPDNSServersList
{
UInt16	fCount;
InetHost	fAddressesList[1];
};
Field descriptions
fCount	The number of IP addresses in the list.
fAddressesList	An unbounded array containing the IP addresses of name
	servers.

The preference type for OTCfgTCPDNSServersList is kOTCfgTCPDNSServersListPref, which is deﬁned as 'idns'.

OTCfgTCPLocks

The OTCfgTCPLocks structure stores information about whether a preference has been locked by the administration mode of the control panel.

struct OTCfgTCPLocks

{
UInt8	pad1;
UInt8	lockConnectViaPopup;
UInt8	pad2;
UInt8	lockConfigurePopup;
UInt8	pad3;
UInt8	lockAppleTalkZone;
UInt8	pad4;
UInt8	lockIPAddress;

116Protocol Structures

Image 116

Apple Network Setup manual OTCfgTCPDNSServersList, OTCfgTCPLocks, Number of IP addresses in the list

Contents

Network Setup Page Contents Network Setup Reference 111 Network Setup Protocol Structures and Data TypesGlossary Index Page Figures, Tables, and Listings Page About This Manual Conventions Used in This Manual For More Information About Network Setup Network Setup Architecture 1Network configuration prior to Network Setup 2Network Setup in Mac OS 8.5 through the present Inside the Network Setup Library 3Future Network Setup architecture 4Structure of the Network Setup Library Network Setup Database Fundamentals Database Structure Database Structure Example 5Sample organization of the default area Database Operations Shows this process diagrammatically Legacy Issues Preference Coherency Legacy Synchronization Algorithm Mac OS Network Setup Version HistoryMac OS Not released About Network Setup Network Setup Version History Opening and Closing the Network Setup Database Opening the Database for Reading Opening the Database for Writing Using Network Setup Closing the Database After Reading Closing the Database After Writing Listing 2-4Closing the database after writing Working with Entities Listing All Entities KCfgClassAnyEntity and kCfgTypeAnyEntity, respectively NoErr HLock Handle entityRefs Listing 2-6Printing the user-visible name for an entity Reading and Writing Preferences Finding an Active Entity Reading Fixed-size Preferences Listing 2-7Reading a ﬁxed-size preference OSStatus err AssertdbRef = nil Assertentity Reading Variable-size Preferences Listing 2-9Reading the user-visible name preference == noErr HLockbuffer Writing Preferences Listing 2-11Writing a preference Listing 2-12Printing an entity’s table of contents Iterating the Preferences in an Entity If err != noErr PrintfFailed with error %ld.\n, err Working with Sets Finding the Active Set Entity Listing 2-13Finding the active set entity NoErr Return err Working with Sets Listing 2-15Finding the active TCP/IP entity Areas and Sets Protocol-speciﬁc Topics TCP/IP Notes Start the cursor at the beginning of the packed preference PrefDataErr return paramErr AssertpackedPref != nil assertunpackedPref != nil Remote Access Notes Listing 2-17Encrypting the user’s password Modem Notes Using Network Setup Using Network Setup Network Setup Functions Opening and Closing the Network Setup Database OTCfgOpenDatabase OTCfgCloseDatabase Managing Areas Obtains the default area OTCfgGetCurrentAreaOn input, a value of type CfgDatabaseRef page 98 that Represents a database session previously opened by calling OTCfgSetCurrentArea OTCfgOpenArea On input, a value of type CfgAreaID page 98 that identiﬁes Closes an area in the Network Setup databaseOTCfgCloseArea OTCfgBeginAreaModiﬁcations OTCfgCommitAreaModiﬁcations OTCfgAbortAreaModiﬁcations OTCfgIsSameAreaID OTCfgGetAreaName OTCfgSetAreaName OTCfgGetAreasCount OTCfgGetAreasList Be less that expected if areas were deleted between calling Is large enough to hold the number of area IDs speciﬁed byYou don’t want to get area IDs, set areaID to Null On input, an array of elements of type Str255 that is large Creates an area in the Network Setup database OTCfgCreateAreaOutput, areaID contains the ID of the area that was created Value of noErr indicates that OTCfgCreateArea returned Copies the contents of one area to another area OTCfgDuplicateAreaBy areaID does not exist, OTCfgDuplicateArea returns Value of noErr indicates that OTCfgDuplicateArea returned OTCfgDeleteArea Deletes an area in the Network Setup databaseManaging Entities Not exist, OTCfgGetEntitiesCount returns the error OTCfgGetEntitiesCountClasses and Types KCfgTypeAnyEntity. For a list of possible types, see Entity OTCfgGetEntitiesList Obtains information about entities in an area Network Setup Reference OTCfgIsSameEntityRef OTCfgCreateEntityCompares two entity references Creates an entity in an area AreaID is not writable, OTCfgCreateEntity returns the error Already exists, OTCfgCreateEntity returns the errorSpeciﬁes the class, type, user-visible name, and icon for On input, a pointer to a value of type CfgEntityRef OTCfgDeleteEntity OTCfgDuplicateEntity OTCfgGetEntityLogicalName Obtains the user-visible name of an entityReference for an entity, call OTCfgGetEntitiesList User-visible name of the entity represented by entityRef OTCfgGetEntityName Obtains the name of an entity OTCfgSetEntityName OTCfgGetEntityArea OTCfgChangeEntityArea Managing Preferences OTCfgOpenPrefs OTCfgClosePrefs OTCfgGetPrefsSize OTCfgGetPrefs OTCfgSetPrefs OTCfgGetPrefsTOCCount Gets the number of preferences in an entity OTCfgGetPrefsTOC Gets a list of the preferences in an entity Deletes a preference OTCfgGetDefaultOTCfgDeletePrefs Gets the default value for a speciﬁc preference OTCfgGetTemplate Returns as much data as possible and returns the error Value but not the default value itself, set data to NullPreference Utilities Value of noErr indicates that OTCfgGetTemplate returned OTCfgEncrypt OTCfgDecrypt Installing and Removing a Notiﬁcation Callback OTCfgInstallNotiﬁer Notiﬁcation callback that is to be installed Notiﬁcation callback when it is calledValue of noErr indicates that OTCfgInstallNotifier returned Values, see the constants described in Entity Classes Was speciﬁed when the notiﬁcation callback was installed Application-Deﬁned RoutinesOTCfgRemoveNotiﬁer Removes a notiﬁcation callback Network Setup Structures and Data Types Notiﬁcation Callback Routine CfgDatabaseRef CfgAreaIDValue of type CfgAreaID identiﬁes an area An unsigned 32-bit value that uniquely identiﬁes an area CfgEntityRef CfgEntityInfoCfgEntityRef structure refers to a speciﬁc entity Area in which the entity resides CfgEntityAccessID CfgPrefsHeader 101 CfgResourceLocatorCfgSetsStruct For the fFlags ﬁeld that follows An array of time stamps used during legacy importExport indexed by the enumeration for the fTimes ﬁeld that Follows 103 CfgSetsElementCfgSetsVector Network Setup Constants Entity Classes and Types Class code for network connection entities 105 Common Preference Types Following enumeration deﬁnes per-connection preference types This preference is not documented Dummy preference type used for free blocks in an entityFollowing enumeration deﬁnes global preference types 107 Set Entity Preference Types Basic user mode Advanced user modeInvalid Area ID Constant kInvalidCfgAreaID represents an invalid area ID Result Codes 111 Protocol StructuresTCP/IP Structures OTCfgTCPInterfacesUnpacked 113 Containing port, module, and framing information OTCfgTCPInterfacesPackedOTCfgTCPInterfacesPackedPart OTCfgTCPDHCPLeaseInfo 115 OTCfgTCPDNSServersList OTCfgTCPLocksNumber of IP addresses in the list An unbounded array containing the IP addresses of name 117 Set to True to lock the Router address text ﬁeld Set to True to lock the Ending domain name text ﬁeldSet to True to lock the Additional search domains text ﬁeld 119 OTCfgTCPRoutersListOTCfgTCPRoutersListEntry Number of domains in the list OTCfgTCPSearchDomainsOTCfgTCPSearchList OTCfgTCPUnloadAttr 121 Apple Remote Access Structures OTCfgRemoteAlternateAddress OTCfgRemoteApplicationMust be zero 123 OTCfgRemoteARAP OTCfgRemoteClientLocks 125 Allow error correction and compression in modem ErrorCheck ﬁeld is set to 1 and unlocked whenErrorCheck ﬁeld is set to zero Control panel is locked when the headerCompress ﬁeld is set 127 OTCfgRemoteClientMiscOTCfgRemoteConnect Set to 1 to use the password preference KOTCfgRemotePasswordPref or set to zero to promptUser for a password Is to log on as Guest 129 OTCfgRemoteDialAssist OTCfgRemoteDialing 131 OTCfgRemoteIPCP Milliseconds. Must be OTCfgRemoteLCP 133 Port. Must be ‘Script’ 135 OTCfgRemotePasswordOTCfgRemoteLogOptions OTCfgRemoteServer OTCfgRemoteServerPort 137 OTCfgRemoteTerminal OTCfgRemoteUserMode 139 Administration password. The format is not OTCfgRemoteX25Documented OTCfgRemoteX25 structure stores X.25 connection information Modem Structures OTCfgModemGeneralMust be zero for standard dial-up connections 141 OTCfgModemApplication OTCfgModemLocks 143 Set dialing to zero to unlock the setting AppleTalk Structures OTCfgATalkGeneral 145 OTCfgATalkGeneralAARP OTCfgATalkGeneralADSP 147 FDefaultSendBlockingBytes, default is Transport Service Data Unit TSDU, which isCarry. The default is Extended Tsdu Etsdu size. The default is 149 OTCfgATalkGeneralASPSize in bytes of this structure Maximum amount of data that packets of this protocol Can carry. The default isOTCfgATalkGeneralATP OTCfgATalkGeneralDDP 151 Can carry. Must be 586, which is the basic AppleTalk Datagram sizeWhether AppleTalk is active. See discussion below for Possible values OTCfgATalkGeneralNBP 153 OTCfgATalkGeneralPAP 155 Default open interval in milliseconds. The default value isOTCfgATalkGeneralZIP OTCfgATalkLocks OTCfgATalkNetworkArchitecture 157 Infrared Structures OTCfgATalkPortDeviceTypeMust be OTOn Open Transport device type such as Protocol Constants and Other Data Types OTCfgIRGeneralReference to the infrared port 159 TCP/IP Constants and Other Data Types KOTCfgTCPSearchListPref Masks for the kOTCfgProtocolOptionsPref Preference 161 If set, this bit turns off path MTU discovery If set, this bit disables Dhcp INIT-REBOOT capabilityOTCfgTCPConﬁgMethod 163 Apple Remote Access Constants and Other Data TypesARA Per-Connection Preferences Types Preference type for the OTCfgRemoteARAP page 124 structure Preference type for the OTCfgRemoteIPCP page 132 structure Preference type for the OTCfgRemoteLCP page 133 structurePreference type for the OTCfgRemoteX25 page 140 structure 165 Deﬁned but not used by ARA ARA Global Preference TypesOTCfgRemotePPPConnectScript OTCfgRemoteProtocol 167 OTCfgRemoteLogLevel OTCfgRemoteDialMode 169 OTCfgRemoteAnswerModeOTCfgRemoteNetworkProtocol OTCfgRemoteNetAccessMode Modem Constants and Other Data Types Modem Global Preference Types OTCfgModemDialingToneModePreference type for the OTCfgModemLocks page 143 structure 171 KModemDialToneIgnoreDo not wait for dial tone AppleTalk Constants and Other Data TypesPer-connection AppleTalk Preference Types 173 Infrared Constants and Other Data TypesGlobal AppleTalk Preference Types Speciﬁes the Infrared Data Association IrDA protocol OTCfgIRPortSettingOTCfgIRPortSetting enumeration deﬁnes constants for use Aarp See AppleTalk Address Resolution Protocol 175 Icmp See Internet Control Message Protocol IP See Internet Protocol Media access control address The six-byte 177 O S S a R Y Index 179 180 History, version 181 Structure 182 183 184