Create MediaWiki page 'Ondemand Protocol'

Categories.mediawiki

@@ -1,6 +1,6 @@
 <!-- DO NOT EDIT THIS FILE, CODE AUTOMATICALLY GENERATED BY category.sh -->
 The following categories contain pages or media.
-* [[Category Cache]] (1 members)
+* [[Category Cache]] (2 members)
 * [[Category Data Type]] (3 members)
 * [[Category Packet]] (91 members)
 * [[Category Packet 194]] (4 members)

Category-Cache.mediawiki

@@ -5,5 +5,6 @@
 == '''Ondemand Protocol''' ==
 <!-- DO NOT EDIT BELOW THIS LINE, OR CHANGE THIS COMMENT, CODE AUTOMATICALLY GENERATED BY category.sh -->
 == '''Pages in category "Cache"''' ==
-The following 1 pages are in this category.
+The following 2 pages are in this category.
 * [[JAGGRAB Protocol]]
+* [[Ondemand Protocol]]

Ondemand-Protocol.mediawiki

@@ -0,0 +1,29 @@
+[[Category Cache]]
+
+== Introduction ==
+
+The 'Ondemand' protocol is used to stream updates to the cache. The client knows which files to update from the CRC file downloaded using the [[Category JAGGRAB Protocol|JAGGRAB protocol]].
+
+== Request packet ==
+
+The client first authenticates as an ondemand client by using the opcode '15' (as opposed to the game, which uses the type '14').
+
+The format of the request is:
+
+ unsigned byte cacheId;
+ unsigned short fileId;
+ unsigned byte priority;
+
+There can be multiple requests per session.
+
+== Response packet ==
+
+The response is sent in blocks. The maximum size of a block is 500 bytes. Smaller blocks (at the end of a file) are permitted.
+
+Each block has the format:
+
+ unsigned byte cacheId;
+ unsigned short fileId;
+ unsigned short fileSize;
+ unsigned byte blockNumber;
+ unsigned byte[] blockData;