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Yet more WIP on mulitcast algo...

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This commit is contained in:
Adam Ierymenko 2014-09-22 13:18:24 -07:00
parent d9abd4d9be
commit 954f9cbc13
11 changed files with 276 additions and 83 deletions
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27
node/Packet.hpp
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@ -664,7 +664,7 @@ public:
* <[8] 64-bit network ID>
* <[6] MAC address of multicast group being queried>
* <[4] 32-bit ADI for multicast group being queried>
* <[2] 16-bit (suggested) max number of multicast peers desired>
* <[4] 32-bit (suggested) max number of multicast peers desired or 0 for no limit>
* [<[...] network membership certificate (optional)>]
*
* Flags are:
@ -673,13 +673,13 @@ public:
* This message asks a peer for additional known endpoints that have
* LIKEd a given multicast group. It's sent when the sender wishes
* to send multicast but does not have the desired number of recipient
* peers. (Hence it is "lonely." :)
* peers.
*
* OK response payload:
* <[8] 64-bit network ID>
* <[6] MAC address of multicast group being queried>
* <[4] 32-bit ADI for multicast group being queried>
* <[2] 16-bit total number of known members in this multicast group>
* <[4] 32-bit total number of known members in this multicast group>
* <[2] 16-bit number of members enumerated in this packet>
* <[...] series of 5-byte ZeroTier addresses of enumerated members>
*
@ -691,7 +691,7 @@ public:
* ERRORs are optional and are only generated if permission is denied,
* certificate of membership is out of date, etc.
*/
VERB_MULTICAST_LONELY = 13,
VERB_MULTICAST_GATHER = 13,
/* Multicast frame:
* <[1] flags (currently unused, must be 0)>
@ -709,6 +709,9 @@ public:
* ERROR response payload:
* <[6] multicast group MAC>
* <[4] 32-bit multicast group ADI>
*
* ERRORs are optional and can be generated if a certificate is needed or if
* multicasts for this multicast group are no longer wanted.
*/
VERB_MULTICAST_FRAME = 14
};
@ -781,6 +784,22 @@ public:
(*this)[ZT_PACKET_IDX_FLAGS] = 0; // zero flags and hops
}
/**
* Make a copy of a packet with a new initialization vector and destination address
*
* This can be used to take one draft prototype packet and quickly make copies to
* encrypt for different destinations.
*
* @param prototype Prototype packet
* @param dest Destination ZeroTier address for new packet
*/
Packet(const Packet &prototype,const Address &dest) :
Buffer<ZT_PROTO_MAX_PACKET_LENGTH>(prototype)
{
Utils::getSecureRandom(field(ZT_PACKET_IDX_IV,8),8);
setDestination(dest);
}
/**
* Construct a new empty packet with a unique random packet ID
*