Protocol
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.
LLSD
The Linden Lab Structured Data system is an abstract way of representing data with some strong types. Three serialization formats are supported including binary, XML, and notation which are described in LLSD.
XML-RPC
The initial exchange with the login server uses XML-RPC. This will likely change in the future as the login switches over to use web authentication, removing XML-RPC from the Second Life protocol entirely.
Protocol Systems
Animations
Appearance
Assets
Avatars
Channels and Versions
- Channel - definition of a channel
- Channel and Version Requirements - Linden Lab policy on the use of channels.
Directory Searches
Estate Tools
Friends
Grid
Groups
Inventory
Agent
Login
Movement
Objects
Images
Parcels
Simulators
Sounds
Terrain
File Formats
Asset Files
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 |