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More work in progress in new multicast propagation...

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This commit is contained in:
Adam Ierymenko 2013-09-25 17:41:49 -04:00
parent f3128a18fe
commit 24bad9f3d1
9 changed files with 226 additions and 162 deletions
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16
node/Packet.hpp
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@ -167,9 +167,10 @@
#define ZT_PROTO_VERB_MULTICAST_GOT_IDX_NETWORK_ID (ZT_PACKET_IDX_PAYLOAD)
#define ZT_PROTO_VERB_MULTICAST_GOT_IDX_MULTICAST_GUID (ZT_PROTO_VERB_MULTICAST_GOT_IDX_NETWORK_ID + 8)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_COUNTER (ZT_PACKET_IDX_PAYLOAD)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_QUEUE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_COUNTER + 2)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MAGNET (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_QUEUE + 320)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FORWARD_COUNT (ZT_PACKET_IDX_PAYLOAD)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_QUEUE (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_FORWARD_COUNT + 4)
#define ZT_PROTO_VERB_MULTICAST_FRAME_LEN_QUEUE 320
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MAGNET (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_QUEUE + ZT_PROTO_VERB_MULTICAST_FRAME_LEN_QUEUE)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_MAGNET + 5)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER_UNIQUE_ID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER + 5)
#define ZT_PROTO_VERB_MULTICAST_FRAME_IDX_NETWORK_ID (ZT_PROTO_VERB_MULTICAST_FRAME_IDX_SUBMITTER_UNIQUE_ID + 3)
@ -464,7 +465,7 @@ public:
* <[4] multicast additional distinguishing information (ADI)>
* [... additional tuples of network/address/adi ...]
*
* OK is generated on successful receipt.
* OK/ERROR are not generated.
*/
VERB_MULTICAST_LIKE = 7,
@ -477,7 +478,7 @@ public:
VERB_MULTICAST_GOT = 8,
/* A multicast frame:
* <[2] 16-bit counter -- number of times multicast has been forwarded>
* <[4] 32-bit forwarding counter>
* <[320] FIFO queue of up to 64 ZT addresses, zero address terminated>
* [... start of signed portion, signed by original submitter below ...]
* <[5] ZeroTier address of propagation magnet node>
@ -501,10 +502,9 @@ public:
* (1) packet is possibly injected into the local TAP
* (2) send a MULTICAST_GOT message to magnet node with 64-bit
* multicast GUID
* (3) counter is incremented, STOP if >= network's max multicast
* recipient count
* (3) forwarding counter is incremented, STOP of max exceeded
* (4) topmost value is removed from FIFO and saved (next hop)
* (5) FIFO is deduplicated (prevents amplification floods)
* (5) deduplicate FIFO (helps prevent floods)
* (6) FIFO is filled with as many known peers that have LIKED this
* multicast group as possible, excluding peers to whom this
* multicast has already been sent or (if magnet node) have GOT