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Update waku.md

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Dean Eigenmann 2019-11-21 22:57:41 +01:00 committed by GitHub
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@ -64,56 +64,55 @@ Using [Augmented Backus-Naur form (ABNF)](https://tools.ietf.org/html/rfc5234) w
<!-- TOOD: ABNF floating point rep for pow? https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node19.html --> <!-- TOOD: ABNF floating point rep for pow? https://www.cs.cmu.edu/Groups/AI/html/cltl/clm/node19.html -->
``` ```
packet-format ::= "[" packet-code packet-format "]"
; Packet codes 0 - 127 are reserved for Waku protocol ; Packet codes 0 - 127 are reserved for Waku protocol
packet-code ::= 0 / 1 / 2 / 3 / [ x4-127 ] 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-format needs to be paired with its corresponding packet-format
packet = "[" required-packet / [ optional-packet ] "]"
packet ::= "[" required-packet / [ optional-packet ] "]" required-packet = 0 status / 1 messages / 2 pow-requirement / 3 bloom-filter
required-packet ::= 0 status / 1 messages / 2 pow-requirement / 3 bloom-filter optional-packet = 126 p2p-request / 127 p2p-message
optional-packet ::= 126 p2p-request / 127 p2p-message packet-format = "[" packet-code packet-format "]"
packet-format ::= "[" packet-code packet-format "]" status = "[" version pow-requirement [ bloom-filter ] [ light-node ] "]"
status ::= "[" version pow-requirement [ bloom-filter ] [ light-node ] "]"
; version is "an integer (as specified in RLP)" ; version is "an integer (as specified in RLP)"
version ::= integer version = integer
messages ::= *whisper-envelope 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 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 pow-requirement = pow
; bloom filter is "a byte array" ; bloom filter is "a byte array"
bloom-filter ::= bytes bloom-filter = bytes
light-node ::= bool light-node = bool
p2p-request ::= whisper-envelope p2p-request = whisper-envelope
p2p-message ::= whisper-envelope p2p-message = whisper-envelope
whisper-envelope ::= "[" expiry ttl topic data nonce "]" whisper-envelope = "[" expiry ttl topic data nonce "]"
; 4 bytes (UNIX time in seconds) ; 4 bytes (UNIX time in seconds)
expiry ::= bytes expiry = bytes
; 4 bytes (time-to-live in seconds) ; 4 bytes (time-to-live in seconds)
ttl ::= bytes ttl = bytes
; 4 bytes of arbitrary data ; 4 bytes of arbitrary data
topic ::= bytes topic = bytes
; byte array of arbitrary size (contains encrypted message) ; byte array of arbitrary size (contains encrypted message)
data ::= bytes data = bytes
; 8 bytes of arbitrary data (used for PoW calculation) ; 8 bytes of arbitrary data (used for PoW calculation)
nonce ::= bytes nonce = bytes
``` ```