add waku-raw

abnf/hello-abnf/resources/waku-raw.txt

@@ -0,0 +1,51 @@
+bytes = *OCTET
+
+; Packet codes 0 - 127 are reserved for Waku protocol
+packet-code      = 0 / 1 / 2 / 3 / [ x4-127 ]
+
+packet-format    = "[" packet-code packet-format "]"
+
+; packet-format needs to be paired with its corresponding packet-format
+packet           = "[" required-packet / [ optional-packet ] "]"
+
+required-packet  = 0 status / 1 messages / 2 pow-requirement / 3 bloom-filter
+
+optional-packet  = 126 p2p-request / 127 p2p-message
+
+packet-format    = "[" packet-code packet-format "]"
+
+status           = "[" version pow-requirement [ bloom-filter ] [ light-node ] "]"
+
+; version is "an integer (as specified in RLP)"
+version          = DIGIT
+
+messages         = *whisper-envelope
+
+; pow is "a single floating point value of PoW. This value is the IEEE 754 binary representation of 64-bit floating point number. Values of qNAN, sNAN, INF and -INF are not allowed. Negative values are also not allowed."
+pow-requirement  = pow
+
+; bloom filter is "a byte array"
+bloom-filter     = bytes
+
+light-node       = BIT
+
+p2p-request      = whisper-envelope
+
+p2p-message      = whisper-envelope
+
+whisper-envelope = "[" expiry ttl topic data nonce "]"
+
+; 4 bytes (UNIX time in seconds)
+expiry           = bytes
+
+; 4 bytes (time-to-live in seconds)
+ttl              = bytes
+
+; 4 bytes of arbitrary data
+topic            = bytes
+
+; byte array of arbitrary size (contains encrypted message)
+data             = bytes
+
+; 8 bytes of arbitrary data (used for PoW calculation)
+nonce            = bytes