Protocol

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Message Formats

Binary UDP

  • Message Layout -- Explanation of message format and the message template
  • Packet Layout -- the layout of the UDP payload.
  • Circuits -- Establishment and common operation of UDP circuits between two nodes
  • Packet Accounting -- how the message system handles packet sequencing, reliability, suppression, throttling, etc.
  • Common Messages -- messages that are handled by every Indra message system instance.
  • Xfer Manager -- messages used by the LLXFerManager class.
  • Transfer Manager -- messages used by the LLTransferManger class.
  • All messages -- an alphabetical listing of all messages in the system

Capabilities

The Capabilities system allows viewers to request abilities and be temporarily granted those abilities through a unique URL. The transport format is LLSD XML, and clients can either post new events to CAPS URLs or wait for events to come from the server on the event queue connection the client holds open.

Capabilities use the Linden Lab Structured Data system to represent data. See LLSD.

XML-RPC

Older releases of the official viewer used XML-RPC as part of the Login Protocol. The official viewer now uses a web based authentication protocol, however non-official viewers may still use XML-RPC for login.

See also Authentication Flow.

Protocol Systems

Animations

See Internal Animation Format.

Appearance

See Avatar Appearance.

Assets

Avatars

Channels and Versions

Directory Searches

See Search Messages.

Estate Tools

Friends

See:

Grid

Groups

Inventory

Agent

Login

Movement

Objects

Images

Parcels

Simulators

Sounds

Terrain

Protocol Sequence Diagrams

File Formats

Asset Files

Files Types known by the asset system
Reference extension id mime type LSL
Textures texture 0 image/x-j2c INVENTORY_TEXTURE
Sounds sound 1 application/ogg INVENTORY_SOUND
Calling_Card callingcard 2 application/vnd.ll.callingcard
Landmarks landmark 3 application/vnd.ll.landmark INVENTORY_LANDMARK
Clothing clothing 5 application/vnd.ll.clothing INVENTORY_CLOTHING
Primitive primitive 6 application/vnd.ll.primitive INVENTORY_OBJECT
Notecards notecard 7 application/vnd.ll.notecard INVENTORY_NOTECARD
LSL Text lsltext 10 application/vnd.ll.lsltext INVENTORY_SCRIPT
LSL Bytecode lslbyte 11 application/vnd.ll.lslbyte
Bodypart bodypart 13 application/vnd.ll.bodypart INVENTORY_BODYPART
Animations animatn 20 application/vnd.ll.animation INVENTORY_ANIMATION
Gestures gesture 21 application/vnd.ll.gesture INVENTORY_GESTURE
Asset Wrapper asset unassigned application/vnd.ll.asset