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| author | Perttu Ahola <celeron55@gmail.com> | 2011-06-18 20:16:11 +0300 |
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| committer | Perttu Ahola <celeron55@gmail.com> | 2011-06-18 20:16:11 +0300 |
| commit | 28a8218adfa103361b9ea371eae5aa093b6d7e29 (patch) | |
| tree | 9a11ca168c5ed016b622c51cdaee9dae4a57175e /doc/protocol.txt | |
| parent | 5d1ae85ab9829ab38b96277a8cd63e4539774e06 (diff) | |
| download | minetest-28a8218adfa103361b9ea371eae5aa093b6d7e29.tar.gz minetest-28a8218adfa103361b9ea371eae5aa093b6d7e29.tar.bz2 minetest-28a8218adfa103361b9ea371eae5aa093b6d7e29.zip | |
Documentation update
Diffstat (limited to 'doc/protocol.txt')
| -rw-r--r-- | doc/protocol.txt | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/doc/protocol.txt b/doc/protocol.txt new file mode 100644 index 000000000..b7b433c9e --- /dev/null +++ b/doc/protocol.txt @@ -0,0 +1,32 @@ +Minetest-c55 protocol (incomplete, early draft): +Updated 2011-06-18 + +A custom protocol over UDP. + +Initialization: +- A dummy reliable packet with peer_id=PEER_ID_INEXISTENT=0 is sent to the server: + - Actually this can be sent without the reliable packet header, too, i guess, + but the sequence number in the header allows the sender to re-send the + packet without accidentally getting a double initialization. + - Packet content: + # Basic header + u32 protocol_id = PROTOCOL_ID = 0x4f457403 + u16 sender_peer_id = PEER_ID_INEXISTENT = 0 + u8 channel = 0 + # Reliable packet header + u8 type = TYPE_RELIABLE = 3 + u16 seqnum = SEQNUM_INITIAL = 6550 + # Original packet header + u8 type = TYPE_ORIGINAL = 1 + # And no actual payload. +- Server responds with something like this: + - Packet content: + # Basic header + u32 protocol_id = PROTOCOL_ID = 0x4f457403 + u16 sender_peer_id = PEER_ID_INEXISTENT = 0 + u8 channel = 0 + # Control packet header + u8 type = TYPE_CONTROL = 0 + u8 controltype = CONTROLTYPE_SET_PEER_ID = 1 + u16 peer_id_new = assigned peer id to client (other than 0 or 1) + |