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Apple Network Setup manual OTCfgTCPRoutersListEntry page 119 structures

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OTCfgTCPRoutersList

C H A P T E R 4

Network Setup Protocol Structures and Data Types

OTCfgTCPRoutersList

The OTCfgTCPRoutersList structure holds an array of OTCfgTCPRoutersListEntry (page 119) structures.

struct OTCfgTCPRoutersList

{

UInt16fCount;

OTCfgTCPRoutersListEntry fList[1];

};

Field descriptions
fCount	The number of elements in the fList array.
fList	An unbounded array consisting of a
	OTCfgTCPRoutersListEntry (page 119) structures.

The preference type for this preference is kOTCfgTCPRoutersListPref, which is deﬁned as 'irte'.

OTCfgTCPRoutersListEntry

The OTCfgTCPRoutersListEntry structure is a sub-structure of the OTCfgTCPRoutersList (page 119) structure and stores the IP address of the router that has been conﬁgured as the default gateway for this interface.

struct OTCfgTCPRoutersListEntry

{

InetHost fToHost;

InetHost fViaHost;

UInt16 fLocal;

UInt16 fHost;

};
Field descriptions
fToHost	A reserved field that you should initialize to zero.
fViaHost	The IP address of the router.
fLocal	A reserved field that you should initialize to zero.
fHost	A reserved field that you should initialize to zero.

Protocol Structures

119

Image 119

Apple Network Setup manual OTCfgTCPRoutersListEntry page 119 structures

Contents

Network Setup I N S I D E M A C I N T O S H Apple Computer, Inc 2000 Apple Computer, Inc. All rights reserved About This Manual ContentsAbout Network Setup Using Network SetupChapter Network Setup ReferenceGlossary Index Chapter 4 Network Setup Protocol Structures and Data TypesPage Chapter About Network SetupUsing Network Setup Figures, Tables, and ListingsPage Conventions Used in This Manual About This ManualOpen Transport Advanced Client Programming, available at For More InformationInside AppleTalk, Second Edition Inside Macintosh Networking with Open TransportNetwork Setup Architecture About Network SetupThe architecture shown in Figure 1-1 had a number of drawbacks The following key points are to be taken from Figure Inside the Network Setup Library Mid-level database OTCfg About Network Setup Figure 1-4 Structure of the Network Setup LibraryInside the Network Setup Library High-level frameworkDatabase Structure Network Setup Database FundamentalsDatabase Structure Example LocalTalk for Printer AppleTalk networkork protocol entity About Network SetupFigure 1-5 Sample organization of the default area 18 Network Setup Database FundamentalsDatabase Operations Figure 1-6 shows this process diagrammatically Preference Coherency Legacy IssuesLegacy Synchronization Algorithm Mac OS version Network Setup Version HistoryVersion C H A P T E R About Network Setup24 Network Setup Version History Opening the Database for Reading Using Network SetupOpening and Closing the Network Setup Database 26 Opening and Closing the Network Setup Database Opening the Database for WritingUsing Network Setup Listing 2-1 Opening the database for reading Listing 2-2 Opening the database for writing Using Network SetupOpening and Closing the Network Setup Database Closing the Database After Writing Closing the Database After Readingerr = OTCfgCommitAreaModificationsdbRef, readArea, writeArea Using Network SetupOpening and Closing the Network Setup Database Listing 2-4 Closing the database after writingListing All Entities Working with EntitiesCfgEntityInfo **entityInfos kCfgClassAnyEntity and kCfgTypeAnyEntity, respectivelystatic OSStatus MyGetEntitiesListCfgDatabaseRef dbRef, CfgAreaID area OSType entityClass OSType entityType CfgEntityRef **entityRefs32 Working with Entities Using Network SetupThe next routine, shown in Listing 2-6, opens the database for reading, gets the entity references for all of the TCP/IP network connection entities in the default area using the MyGetEntitiesList routine in Listing 2-5, and prints their user-visible names. This routine calls a routine, MyGetEntityUserVisibleName, which hasn’t been documented yet. It is shown in Listing 2-9 in the section “Reading and Writing Preferences” page Finding an Active Entity Reading and Writing PreferencesReading and Writing Preferences Reading Fixed-size PreferencesUsing Network Setup Listing 2-7 Reading a ﬁxed-size preferenceThe sample shown in Listing 2-7, which opens and closes the entity before reading each preference, is implemented in an inefﬁcient manner for the sake of clarity. If you are reading multiple preferences, it is more efﬁcient to open the entity once. Then read the preferences by calling OTCfgGetPrefs or OTCfgSetPrefs multiple times and close the entity when you’re done assertdbRef != nil assertentity != nil assertname != nil Reading Variable-size Preferences38 Reading and Writing Preferences Using Network SetupWriting Preferences Iterating the Preferences in an Entity Reading and Writing Preferences Using Network SetupWorking with Sets Finding the Active Set Entity The MyFindActiveSet routine in Listing 2-13 implements the ﬁrst two steps. It starts by getting a list of all of the set entities by calling the MyGetEntitiesList routine Listing 2-5. Then MyFindActiveSet iterates through all of the set entities, reading the kOTCfgSetsStructPref preference of each set entity. That preference maps to the CfgSetsStruct structure, which contains an fFlags member. One bit of the fFlags member, kOTCfgSetsFlagActiveMask, indicates whether this set entity is the active set entity. If it is, the routine breaks out of the loop and returns the set’s entity reference to the caller breaks out of the loop and returns the found entity 46 Working with Sets Using Network SetupListing 2-14 Finding the active entity of a given class and type Working with Sets Using Network SetupListing 2-15 Finding the active TCP/IP entity Areas and Sets TCP/IP Notes Protocol-speciﬁc Topicsaccess the preference in its packed format cursor = UInt8 * packedPref Using Network SetupProtocol-speciﬁc Topics UInt8 *cursor Using Network Setup52 Protocol-speciﬁc Topics Remote Access Notes OTCfgRemoteClientLocks page Modem NotesStoring Third-party Preferences in Apple Entities Network Setup and Third-party Protocol StacksNotes for Third Parties C H A P T E R Using Network Setup56 Notes for Third Parties Opening and Closing the Network Setup Database Network Setup ReferenceNetwork Setup Functions OTCfgCloseDatabase OTCfgOpenDatabaseManaging Areas OTCfgGetCurrentArea OTCfgOpenArea OTCfgSetCurrentAreaOTCfgCloseArea function result OTCfgBeginAreaModiﬁcationsfunction result OTCfgCommitAreaModiﬁcationsOTCfgAbortAreaModifications returns kCfgErrAreaNotFound OTCfgAbortAreaModiﬁcationsOTCfgIsSameAreaID function resultfunction result OTCfgGetAreaNamefunction result OTCfgSetAreaNamefunction result OTCfgGetAreasCountOTCfgGetAreasList function result that are available. On output, itemCount points to the number offunction result OTCfgCreateAreafunction result OTCfgDuplicateAreaOTCfgDeleteArea Managing EntitiesOTCfgGetEntitiesCount OTCfgGetEntitiesList entityType On input, a value of type CfgEntityType that speciﬁes the type that is to be matched. To specify all types, set entityType to kCfgTypeAnyEntity. For a list of possible types, see “Entity Classes and Types” page OTCfgCreateEntity OTCfgIsSameEntityReffunction result On input, a value of type CfgDatabaseRef page 98 thatconst CfgEntityRef* entityRef, const CfgEntityRef* newEntityRef OTCfgDeleteEntityOTCfgDuplicateEntity function resultOTCfgGetEntityLogicalName function result None OTCfgGetEntityNamefunction result OTCfgSetEntityNamefunction result OTCfgGetEntityAreaOTCfgChangeEntityArea function result None Managing Preferencesfunction result OTCfgOpenPrefsOTCfgGetPrefsSize OTCfgClosePrefsvoid* data, ByteCount length OTCfgGetPrefsfunction result const void* data, ByteCount length OTCfgSetPrefsfunction result OTCfgGetPrefsTOCCount OTCfgGetPrefsTOC OTCfgDeletePrefs OTCfgGetDefaultOTCfgGetTemplate function result Preference UtilitiesOTCfgDecrypt OTCfgEncryptOTCfgInstallNotiﬁer Installing and Removing a Notiﬁcation Callbackfunction result On input, a value of type CfgDatabaseRef page 98 thatfunction result Application-Deﬁned RoutinesOTCfgRemoveNotiﬁer Notiﬁcation Callback Routine Network Setup Structures and Data TypesCfgAreaID CfgDatabaseRefField descriptions CfgEntityRefCfgEntityInfo CfgPrefsHeader CfgEntityAccessIDCfgSetsStruct CfgResourceLocatorFlags for this set. For possible values, see the enumeration CfgSetsVector CfgSetsElementEntity Classes and Types Network Setup ConstantsWildcard Classes and Types Per-connection Preference Types Common Preference TypesGlobal Preference Types Global Backward Compatibility Preference Types Set Entity Preference TypesBackward Compatibility Preference Types OTCfgUserMode Preference Invalid Area IDResult Codes TCP/IP Structures Network Setup Protocol Structures and Data TypesProtocol Structures OTCfgTCPInterfacesUnpacked modulekMaxModuleNameSize partsizeofOTCfgTCPInterfacesPackedPart OTCfgTCPInterfacesPackedOTCfgTCPInterfacesPackedPart OTCfgTCPDHCPLeaseInfo OTCfgTCPLocks OTCfgTCPDNSServersListlockDNSServersList lockAdminDomainNamelockLocalDomainName Set to TRUE to lock the “Router address” text ﬁeld OTCfgTCPRoutersListEntry page 119 structures OTCfgTCPRoutersListOTCfgTCPRoutersListEntry OTCfgTCPSearchList OTCfgTCPSearchDomainsOTCfgTCPUnloadAttr Apple Remote Access Structures OTCfgRemoteApplication OTCfgRemoteAlternateAddressOTCfgRemoteARAP regUserOrGuestLock OTCfgRemoteClientLocksuseVerboseLogLock The “Allow error correction and compression in modem” canInteract OTCfgRemoteClientMiscOTCfgRemoteConnect connectAutomaticallyOTCfgRemotePPPConnectScript issueConnectedRemindersallowModemDataCompression If Notification Manager reminders are enabled, the number isAssisted to 1 to use Dial Assist. When isAssisted is set to OTCfgRemoteDialAssistmade. Only valid if dialMode is not kOTCfgRemoteRedialNone OTCfgRemoteDialingadditionalPtr OTCfgRemoteIPCP lowerLayerName36 OTCfgRemoteLCPkOTCfgRemoteAcceptedVersion. When reading the version OTCfgRemoteLogOptions OTCfgRemotePasswordconfigIDs1 OTCfgRemoteServerconfigCount serialLayerNamekMaxProviderNameSize OTCfgRemoteServerPortstruct OTCfgRemoteServerPort OTCfgRemoteNetworkProtocolMust be TRUE OTCfgRemoteTerminalAccess mode flags. For possible values, see the Network Setup Protocol Structures and Data TypesOTCfgRemoteUserMode OTCfgRemoteX25 OTCfgModemGeneral Modem StructuresOTCfgModemApplication OTCfgModemLocks AppleTalk Structures OTCfgATalkGeneral OTCfgATalkGeneralAARP fMaxConsecutiveDataPackets OTCfgATalkGeneralADSPPage OTCfgATalkGeneralASP fDefaultReleaseTimer OTCfgATalkGeneralATPfDefaultRetryInterval fMyZonekZIPMaxZoneLength+1 OTCfgATalkGeneralDDPNetwork Setup Protocol Structures and Data Types Protocol StructuresThe maximum amount of data that packets of this protocol OTCfgATalkGeneralNBP fDefaultPAPEOMEnabled OTCfgATalkGeneralPAPfDefaultTickleInterval fDefaultTickleRetriesOTCfgATalkGeneralZIP OTCfgATalkLocks Constant descriptions kOTCfgATalkPortLockMask OTCfgATalkNetworkArchitectureOTCfgATalkPortDeviceType Infrared StructuresOTCfgIRGeneral Protocol Constants and Other Data Types“Infrared Constants and Other Data Types” page TCP/IP Constants and Other Data TypesNetwork Setup Protocol Structures and Data Types “AppleTalk Constants and Other Data Types” page0x0004 Masks for the kOTCfgProtocolOptionsPref PreferencekDontShutDownOnARPCollisionMask = 0x0002OTCfgTCPConﬁgMethod ARA Per-Connection Preferences Types Apple Remote Access Constants and Other Data TypesThe preference type for the OTCfgRemoteClientLocks page 125 structure Network Setup Protocol Structures and Data TypesThe preference type for the OTCfgRemoteARAP page 124 structure The preference type for the OTCfgRemoteDialing page 131 structureThe preference type for the OTCfgRemoteConnect page 127 structure OTCfgRemotePPPConnectScript ARA Global Preference TypesOTCfgRemoteProtocol OTCfgRemoteDialMode OTCfgRemoteLogLevelOTCfgRemoteNetworkProtocol OTCfgRemoteAnswerModeModem Constants and Other Data Types OTCfgRemoteNetAccessModeOTCfgModemDialingToneMode Modem Global Preference TypesPer-connection AppleTalk Preference Types AppleTalk Constants and Other Data TypesGlobal AppleTalk Preference Types Infrared Constants and Other Data TypesOTCfgIRPortSetting Glossary maximum transmission unit MTU The maximum number of bytes in a packet media access control address The six-byte Transmission Control Protocol/Internet Protocol A connection-oriented transport-layer Internet protocol that provides reliable full-duplex data transmission Index Page mid-level database 15 modem constants 170 multihoming 12 named areas network connection entities 16 Network Setupnotiﬁcation routine installing 94 removing legacy preference ﬁlesPage temporary area 20 third-party developers 55 type, entity set entities 16 active, number of 43 usingsetting entity names 81 structures TCP/IP constants 160 preferencesI N D E