diff options
Diffstat (limited to 'node/Packet.hpp')
| -rw-r--r-- | node/Packet.hpp | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/node/Packet.hpp b/node/Packet.hpp index ddafe4ee..7bcbb821 100644 --- a/node/Packet.hpp +++ b/node/Packet.hpp @@ -527,7 +527,7 @@ public: */ VERB_EXT_FRAME = 7, - /* A multicast frame: + /* A multicast frame [old multicast protocol, deprecated]: * <[2] 16-bit propagation depth or 0xffff for "do not forward"> * <[320] propagation FIFO> * <[1024] propagation bloom filter> @@ -593,7 +593,7 @@ public: * ERROR may be generated if a membership certificate is needed for a * closed network. Payload will be network ID. */ - VERB_MULTICAST_FRAME = 8, + VERB_P5_MULTICAST_FRAME = 8, /* Announce interest in multicast group(s): * <[8] 64-bit network ID> @@ -657,7 +657,60 @@ public: * It does not generate an OK or ERROR message, and is treated only as * a hint to refresh now. */ - VERB_NETWORK_CONFIG_REFRESH = 12 + VERB_NETWORK_CONFIG_REFRESH = 12, + + /* Request endpoints for multicast distribution: + * <[1] flags> + * <[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> + * [<[...] network membership certificate (optional)>] + * + * Flags are: + * 0x01 - network membership certificate is included + * + * 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." :) + * + * 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> + * <[2] 16-bit number of members enumerated in this packet> + * <[...] series of 5-byte ZeroTier addresses of enumerated members> + * + * ERROR response payload: + * <[8] 64-bit network ID> + * <[6] MAC address of multicast group being queried> + * <[4] 32-bit ADI for multicast group being queried> + * + * ERRORs are optional and are only generated if permission is denied, + * certificate of membership is out of date, etc. + */ + VERB_MULTICAST_LONELY = 13, + + /* Multicast frame: + * <[1] flags (currently unused, must be 0)> + * <[4] 32-bit multicast ADI (note that this is out of order here -- it precedes MAC)> + * <[6] destination MAC or all zero for destination node> + * <[6] source MAC or all zero for node of origin> + * <[2] 16-bit ethertype> + * <[...] ethernet payload> + * + * This is similar to EXT_FRAME but carries a multicast, and is sent + * out to recipients on a multicast list. + * + * OK is not generated. + * + * ERROR response payload: + * <[6] multicast group MAC> + * <[4] 32-bit multicast group ADI> + */ + VERB_MULTICAST_FRAME = 14 }; /** @@ -687,7 +740,10 @@ public: ERROR_NEED_MEMBERSHIP_CERTIFICATE = 6, /* Tried to join network, but you're not a member */ - ERROR_NETWORK_ACCESS_DENIED_ = 7 /* extra _ to avoid Windows name conflict */ + ERROR_NETWORK_ACCESS_DENIED_ = 7, /* extra _ to avoid Windows name conflict */ + + /* Multicasts to this group are not wanted */ + ERROR_UNWANTED_MULTICAST = 8 }; /** |