2024-07-07 23:33:21 -04:00
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< h1 > WireProto Specification< / h1 >
< div class = "details" >
< span id = "author" class = "author" > Brent Saner< / span > < br >
< span id = "email" class = "email" > < a href = "mailto:bts@square-r00t.net" > bts@square-r00t.net< / a > < / span > < br >
2024-07-10 01:17:03 -04:00
< span id = "revdate" > Last rendered 2024-07-10 01:17:03 -0400< / span >
2024-07-07 23:33:21 -04:00
< / div >
< div id = "toc" class = "toc2" >
< div id = "toctitle" > Table of Contents< / div >
< ul class = "sectlevel1" >
< li > < a href = "#license" > 1. License< / a > < / li >
< li > < a href = "#proto" > 2. Protocol< / a >
< ul class = "sectlevel2" >
2024-07-09 18:30:10 -04:00
< li > < a href = "#proto_reqresp" > 2.1. Requests/Responses< / a > < / li >
< li > < a href = "#lib" > 2.2. Reference Library< / a > < / li >
< li > < a href = "#ytho" > 2.3. Why Yet Another Message Format?< / a > < / li >
2024-07-07 23:33:21 -04:00
< / ul >
< / li >
< li > < a href = "#msg" > 3. Message Format< / a >
< ul class = "sectlevel2" >
< li > < a href = "#msg_respstatus" > 3.1. Response Status< / a > < / li >
< li > < a href = "#proto_ver" > 3.2. Protocol Version< / a > < / li >
< li > < a href = "#msg_grp" > 3.3. Record Group< / a >
< ul class = "sectlevel3" >
< li > < a href = "#msg_grp_rec" > 3.3.1. Record< / a >
< ul class = "sectlevel4" >
< li > < a href = "#msg_grp_rec_kv" > 3.3.1.1. Field/Value Pair (Key/Value Pair)< / a >
< ul class = "sectlevel5" >
< li > < a href = "#msg_grp_rec_kv_nm" > 3.3.1.1.1. Field Name< / a > < / li >
< li > < a href = "#msg_grp_rec_kv_val" > 3.3.1.1.2. Field Value< / a > < / li >
< / ul >
< / li >
2024-07-09 18:30:10 -04:00
< li > < a href = "#msg_grp_recresp" > 3.3.1.2. Copy of Original Record< / a > < / li >
2024-07-07 23:33:21 -04:00
< / ul >
< / li >
< / ul >
< / li >
< / ul >
< / li >
< li > < a href = "#cksum" > 4. Checksums< / a > < / li >
< li > < a href = "#hdrs" > 5. Headers< / a >
< ul class = "sectlevel2" >
2024-07-09 18:30:10 -04:00
< li > < a href = "#hdrs_respstart" > 5.1. < code > RESPSTART< / code > Indicator< / a > < / li >
2024-07-07 23:33:21 -04:00
< li > < a href = "#hdrs_cksum" > 5.2. < code > CKSUM< / code > Header Prefix< / a > < / li >
< li > < a href = "#hdrs_msgstart" > 5.3. < code > MSGSTART< / code > Header Prefix< / a > < / li >
< li > < a href = "#hdrs_bodystart" > 5.4. < code > BODYSTART< / code > Header Prefix< / a > < / li >
< li > < a href = "#hdrs_bodyend" > 5.5. < code > BODYEND< / code > Sequence< / a > < / li >
< li > < a href = "#hdrs_msgend" > 5.6. < code > MSGEND< / code > Sequence< / a > < / li >
< / ul >
< / li >
< li > < a href = "#alloc" > 6. Allocators< / a >
< ul class = "sectlevel2" >
< li > < a href = "#alloc_cnt" > 6.1. Count Allocator< / a > < / li >
< li > < a href = "#alloc_size" > 6.2. Size Allocator< / a > < / li >
< / ul >
< / li >
< li > < a href = "#ref" > 7. Reference Model and Examples< / a >
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< li > < a href = "#ref_single" > 7.1. Single/Simple< / a >
< ul class = "sectlevel3" >
< li > < a href = "#ref_single_req" > 7.1.1. Single/Simple Request< / a > < / li >
< li > < a href = "#ref_single_resp" > 7.1.2. Single/Simple Response< / a > < / li >
< / ul >
< / li >
< li > < a href = "#ref_multi" > 7.2. Multiple/Many/Complex< / a >
< ul class = "sectlevel3" >
< li > < a href = "#ref_multi_req" > 7.2.1. Complex Request< / a > < / li >
< li > < a href = "#ref_multi_resp" > 7.2.2. Complex Response< / a > < / li >
< / ul >
< / li >
< / ul >
< / li >
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< / div >
< / div >
< div id = "content" >
< div class = "sect1" >
< h2 id = "license" > < a class = "link" href = "#license" > 1. License< / a > < / h2 >
< div class = "sectionbody" >
<!DOCTYPE html>
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< title > WireProto Specification License< / title >
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< body >
< p >
< a property = "dct:title"
rel="cc:attributionURL"
href="https://wireproto.io">
WireProto Specification
< / a > by
< a rel = "cc:attributionURL dct:creator"
property="cc:attributionName"
href="https://r00t2.io">
Brent Saner
2024-07-09 18:55:45 -04:00
< / a > is licensed under:
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2024-07-07 23:33:21 -04:00
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< pre >
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< / pre >
< / details >
< / p >
< / body >
< / html >
< div class = "paragraph" >
2024-07-09 18:55:45 -04:00
< p > In a nutshell, this means any may:< / p >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "ulist" >
< ul >
< li >
< p > Use it in commercial/proprietary/internal works… ​ < / p >
< / li >
< li >
< p > Expand upon/change the specification… ​ < / p >
< div class = "ulist" >
< ul >
< li >
< p > (As long as it is released under the same Creative Commons license)< / p >
< / li >
< / ul >
< / div >
< / li >
< / ul >
< / div >
< div class = "paragraph" >
< p > As long as you attribute the original (this document). This can be as simple as something like:< / p >
< / div >
< div class = "exampleblock" >
< div class = "content" >
< div class = "paragraph" >
< p > Based on WireProto version < protocol version> as found at < a href = "https://wireproto.io/" class = "bare" > https://wireproto.io/< / a > .< / p >
< / div >
< / div >
< / div >
< div class = "paragraph" >
< p > More details certainly helps, though; you may want to mention the exact date you "forked" it, etc.< / p >
< / div >
< div class = "paragraph" >
< p > Please see the full text as collapsed above or < a href = "https://creativecommons.org/licenses/by-sa/4.0/legalcode.en" target = "_blank" rel = "noopener" > the online version< / a > of the license for full legal copy.< / p >
< / div >
< div class = "admonitionblock note" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Note< / div >
< / td >
< td class = "content" >
In the event of the embedded text in this document differing from the online version, the online version is assumed to take precedence as the valid license applicable to this work.
< / td >
< / tr >
< / table >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "proto" > < a class = "link" href = "#proto" > 2. Protocol< / a > < / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
2024-07-10 01:17:03 -04:00
< p > The WireProto data packing API is a custom wire protocol//message format designed for incredibly performant, unambiguous, predictable, platform-agnostic, implementation-agnostic communication. It is based heavily on the < a href = "https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key" target = "_blank" rel = "noopener" > OpenSSH "v1" key format< / a > < a href = "https://sshref.dev" target = "_blank" rel = "noopener" > (example/details via sshref.dev)< / a > packing method.< / p >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "paragraph" >
< p > It supports arbitrary binary values, which means they can be anything according to the implementation-specific details; a common practice is to encode ("marshal") a Go struct to JSON bytes, and set that as a WireProto field’ s value.< / p >
< / div >
< div class = "paragraph" >
< p > It supports both static construction/parsing/dissection and stream approaches in a single format, as well as multiple commands per request message/multiple answers per response message.< / p >
< / div >
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > < strong > All< / strong > packed uint32 (< em > unsigned 32-bit integer< / em > ) values are a < a href = "https://en.wikipedia.org/wiki/Endianness" target = "_blank" rel = "noopener" > big-endian< / a > 4-byte sequence (e.g. < code > 3712599402< / code > == < code > 0xdd49c56a< / code > , or [< code > 0xdd< / code > , < code > 0x49< / code > , < code > 0xc5< / code > , < code > 0x6a< / code > ]).< / p >
< / div >
< div class = "paragraph" >
< p > This specification’ s < a href = "#proto_ver" > Protocol Version< / a > is < code > 1< / code > (< code > 0x00000001< / code > ).< / p >
< / div >
< div class = "paragraph" >
< p > For other releases/finalized versions of this specification, see < a href = "https://git.r00t2.io/r00t2/WireProto/tags" target = "_blank" rel = "noopener" > here< / a > .< / p >
< / div >
< div class = "paragraph" >
< p > For in-development versions, drafts, etc. of this specification, see < a href = "https://git.r00t2.io/r00t2/WireProto/branches" target = "_blank" rel = "noopener" > here< / a > .< / p >
< / div >
< div class = "sect2" >
< h3 id = "proto_reqresp" > < a class = "link" href = "#proto_reqresp" > 2.1. Requests/Responses< / a > < / h3 >
< div class = "paragraph" >
< p > WireProto indicates two types of Messages/communication ends: a < em > Requester< / em > (< em > Requesting End< / em > ) and a < em > Responder< / em > (< em > Responding End< / em > ).< / p >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > This terminology is intentionally implementation-agnostic. A < em > Requester< / em > is any end of a communication that is < strong > requesting data< / strong > , and the < em > Responder< / em > is any end of a communication that is < strong > providing that data< / strong > . A Responder may not always be present (e.g. in the case of using WireProto for local disk serialization/caching, etc.), and a "client" may be a Requester, Responder, or both  —   likewise for a "server".< / p >
< / div >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "sect2" >
2024-07-09 18:30:10 -04:00
< h3 id = "lib" > < a class = "link" href = "#lib" > 2.2. Reference Library< / a > < / h3 >
2024-07-07 23:33:21 -04:00
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > The WireProto specification is accompanied by a reference library for Golang, < a href = "https://git.r00t2.io/r00t2/go_wireproto" target = "_blank" rel = "noopener" > "WireProto"< / a > (< a href = "https://git.r00t2.io/r00t2/wireproto" target = "_blank" rel = "noopener" > < em > source< / em > < / a > ):< / p >
2024-07-07 23:33:21 -04:00
< / div >
2024-07-09 18:54:30 -04:00
< br / >
< br / >
2024-07-07 23:33:21 -04:00
< a href = "https://pkg.go.dev/go.pkg.dev/r00t2.io/wireproto" >
< img src = "https://pkg.go.dev/badge/go.pkg.dev/r00t2.io/wireproto.svg"
alt="Go Reference">
< / a >
2024-07-09 18:30:10 -04:00
< br / >
< br / >
< div class = "paragraph" >
< p > Additional reference libraries may be available in the future.< / p >
< / div >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "sect2" >
2024-07-09 18:30:10 -04:00
< h3 id = "ytho" > < a class = "link" href = "#ytho" > 2.3. Why Yet Another Message Format?< / a > < / h3 >
2024-07-07 23:33:21 -04:00
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > Because existing methods of serializing data in a structured way (e.g. JSON, XML, YAML) are slow/bloaty, inaccurate, and/or inflexible. They struggle with binary or abritrary data (or in e.g. XML’ s case requiring intermediate conditional encoding/decoding).< / p >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "paragraph" >
< p > If it can be represented as bytes (which all digital data can), WireProto can send and receive it.< / p >
< / div >
< div class = "paragraph" >
< p > Additionally:< / p >
< / div >
< div class = "ulist" >
< ul >
< li >
2024-07-09 18:30:10 -04:00
< p > < a href = "https://protobuf.dev/" target = "_blank" rel = "noopener" > < strong > Protobuf< / strong > < / a > has performance issues (yes, really; protobufs have large overhead compared to WireProto) and is restrictive on data types for future-proofing.< / p >
2024-07-07 23:33:21 -04:00
< / li >
< li >
< p > < a href = "https://go.dev/blog/gob" target = "_blank" rel = "noopener" > < strong > Gob< / strong > < / a > is very language-limiting and does not support e.g. nil pointers and cyclical values.< / p >
< / li >
< li >
2024-07-09 18:30:10 -04:00
< p > < a href = "https://capnproto.org/" target = "_blank" rel = "noopener" > Cap’ n Proto< / a > has wide language support and excellent performance but is terribly non-idiomatic, requiring the code to be generated from the schema and not vice versa (which is only ideal if you have only one communication interface and is, in the author’ s opinion, the entirely incorrect approach).< / p >
2024-07-07 23:33:21 -04:00
< / li >
< li >
2024-07-09 18:30:10 -04:00
< p > < a href = "https://en.wikipedia.org/wiki/JSON_streaming" target = "_blank" rel = "noopener" > JSON streams< / a > have no delimiters defined which makes it an inconvenience if using a parser that does not know when the message ends/is complete, or if it is expecting a standalone JSON object (e.g. native vanilla Golang JSON parsing).< / p >
2024-07-07 23:33:21 -04:00
< / li >
< / ul >
< / div >
< div class = "admonitionblock tip" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Tip< / div >
< / td >
< td class = "content" >
< div class = "paragraph" >
< p > WireProto is only used for binary packing/unpacking; this means it can be used with any e.g. < a href = "https://pkg.go.dev/net#Conn" target = "_blank" rel = "noopener" > < code > net.Conn< / code > < / a > (and even has helper functions explicitly to facilitate this), storage on-disk, etc.< / p >
< / div >
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > As such it is transport/storage-agnostic, and can be used with a < a href = "https://pkg.go.dev/net#Dial" target = "_blank" rel = "noopener" > TCP socket, UDP socket, IPC (InterProcess Communication)/UDS (UNIX Domain Socket) handle,< / a > < a href = "https://pkg.go.dev/crypto/tls#Dial" target = "_blank" rel = "noopener" > TLS-tunneled TCP socket< / a > , etc.< / p >
< / div >
< div class = "paragraph" >
< p > See the < a href = "#lib" > Reference Library< / a > for details.< / p >
2024-07-07 23:33:21 -04:00
< / div >
< / td >
< / tr >
< / table >
< / div >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "msg" > < a class = "link" href = "#msg" > 3. Message Format< / a > < / h2 >
< div class = "sectionbody" >
< div class = "admonitionblock tip" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Tip< / div >
< / td >
< td class = "content" >
< div class = "paragraph" >
< p > Throughout this document, you may see references to things like < code > LF< / code > , < code > SOH< / code > , and so forth.< / p >
< / div >
< div class = "paragraph" >
< p > These refer to < em > ASCII control characters< / em > . You will also see many values represented in hex.< / p >
< / div >
< div class = "paragraph" >
2024-07-10 01:17:03 -04:00
< p > You can find more details about this (along with a full ASCII reference) at < a href = "https://asciiref.dev/" target = "_blank" rel = "noopener" > asciiref.dev< / a > . Note that the specification fully supports UTF-8 (or any other arbitrary encoding)  —   just be sure that your < a href = "#alloc_size" > size allocators< / a > are aligned to the < strong > byte count< / strong > and not < strong > character count< / strong > (as these may not be equal depending on encoding).< / p >
2024-07-07 23:33:21 -04:00
< / div >
< / td >
< / tr >
< / table >
< / div >
< div class = "paragraph" >
2024-07-09 18:30:10 -04:00
< p > Each < strong > message< / strong > is composed of:< / p >
2024-07-07 23:33:21 -04:00
< / div >
< div class = "ulist" >
< ul >
< li >
< p > The < a href = "#msg_respstatus" > Response Status< / a > < sup class = "footnote" id = "_footnote_responly" > [< a id = "_footnoteref_1" class = "footnote" href = "#_footnotedef_1" title = "View footnote." > 1< / a > ]< / sup > < / p >
< / li >
< li >
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< p > A < a href = "#cksum" > Checksum< / a > < sup class = "footnote" id = "_footnote_optreq" > [< a id = "_footnoteref_2" class = "footnote" href = "#_footnotedef_2" title = "View footnote." > 2< / a > ]< / sup > < sup class = "footnote" id = "_footnote_reqresp" > [< a id = "_footnoteref_3" class = "footnote" href = "#_footnotedef_3" title = "View footnote." > 3< / a > ]< / sup > < / p >
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< / li >
< li >
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< p > A < a href = "#hdrs_msgstart" > < code > MSGSTART< / code > Header Prefix< / a > < / p >
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< / li >
< li >
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< p > A < a href = "#proto_ver" > Protocol Version< / a > < / p >
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< / li >
< li >
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< p > A < a href = "#hdrs_bodystart" > < code > BODYSTART< / code > Header Prefix< / a > < / p >
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< / li >
< li >
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< p > A < a href = "#msg_grp" > Record Group< / a > < a href = "#alloc_cnt" > Count Allocator< / a > < / p >
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< / li >
< li >
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< p > A < a href = "#msg_grp" > Record Group< / a > < a href = "#alloc_size" > Size Allocator< / a > < / p >
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< / li >
< li >
< p > One (or more) < a href = "#msg_grp" > Record Group< / a > (s), each of which contain:< / p >
< div class = "ulist" >
< ul >
< li >
< p > One (or more) < a href = "#msg_grp_rec" > Record< / a > (s), each of which contain:< / p >
< div class = "ulist" >
< ul >
< li >
< p > One (or more) < a href = "#msg_grp_rec_kv" > Field/Value pair< / a > (s), each of which contain:< / p >
< div class = "ulist" >
< ul >
< li >
< p > A < a href = "#msg_grp_rec_kv_nm" > Field Name< / a > < / p >
< / li >
< li >
< p > A < a href = "#msg_grp_rec_kv_val" > Field Value< / a > < / p >
< / li >
< / ul >
< / div >
< / li >
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< li >
< p > A < a href = "#msg_grp_recresp" > copy of the original record< / a > < sup class = "footnoteref" > [< a class = "footnote" href = "#_footnotedef_1" title = "View footnote." > 1< / a > ]< / sup > < / p >
< / li >
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< / ul >
< / div >
< / li >
< / ul >
< / div >
< / li >
< li >
< p > A < a href = "#hdrs_bodyend" > < code > BODYEND< / code > Sequence< / a > < / p >
< / li >
< li >
< p > A < a href = "#hdrs_msgend" > < code > MSGEND< / code > Sequence< / a > < / p >
< / li >
< / ul >
< / div >
< div class = "sect2" >
< h3 id = "msg_respstatus" > < a class = "link" href = "#msg_respstatus" > 3.1. Response Status< / a > < / h3 >
< div class = "paragraph" >
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< p > For response messages, a speciall "summary byte" is prepended; a status indicator.
This allows requesting ends to quickly bail in the case of an error if no further parsing is desired.< / p >
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< / div >
< div class = "paragraph" >
< p > The status will be indicated by one of < a href = "#hdrs_respstart" > two values< / a > : an ASCII < code > ACK< / code > (< code > 0x06< / code > ) for all requests being returned successfully or an ASCII < code > NAK< / code > (< code > 0x15< / code > ) if one or more errors were encountered across all records.< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "proto_ver" > < a class = "link" href = "#proto_ver" > 3.2. Protocol Version< / a > < / h3 >
< div class = "paragraph" >
< p > The protocol version is a packed uint32 that denotes which version of this protocol specification is being used.< / p >
< / div >
< div class = "paragraph" >
< p > It is maintained seperately from the < strong > library< / strong > version/repo tags.< / p >
< / div >
< div class = "paragraph" >
< p > The current protocol version (as demonstrated in this document) is < code > 1< / code > (< code > 0x00000001< / code > ).< / p >
< / div >
< div class = "admonitionblock note" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Note< / div >
< / td >
< td class = "content" >
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Version < code > 0< / code > is reserved for current < code > HEAD< / code > of the < code > master< / code > branch of this specification and should be considered experimental, not conforming to any specific protocol message format version.
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< / td >
< / tr >
< / table >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "msg_grp" > < a class = "link" href = "#msg_grp" > 3.3. Record Group< / a > < / h3 >
< div class = "paragraph" >
< p > A record group contains multiple related < a href = "#msg_grp_rec" > Records< / a > . It is common to only have a single Record Group.< / p >
< / div >
< div class = "paragraph" >
< p > Its structure is:< / p >
< / div >
< div class = "olist arabic" >
< ol class = "arabic" >
< li >
< p > < a href = "#msg_grp_rec" > Record< / a > < a href = "#alloc_cnt" > Count Allocator< / a > < / p >
< / li >
< li >
< p > < a href = "#msg_grp_rec" > Record< / a > < a href = "#alloc_size" > Size Allocator< / a > < / p >
< / li >
< li >
< p > One (or more) < a href = "#msg_grp_rec" > Records< / a > < / p >
< / li >
< / ol >
< / div >
< div class = "sect3" >
< h4 id = "msg_grp_rec" > < a class = "link" href = "#msg_grp_rec" > 3.3.1. Record< / a > < / h4 >
< div class = "paragraph" >
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< p > A record contains multiple related < a href = "#msg_grp_rec_kv" > Field/Value Pairs (FVP)< / a > and, if a Response Record, a copy of the original reference Request Record it is responding to.< / p >
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< / div >
< div class = "paragraph" >
< p > Its structure is:< / p >
< / div >
< div class = "olist arabic" >
< ol class = "arabic" >
< li >
< p > < a href = "#msg_grp_rec_kv" > Field/Value Pair (Key/Value Pair)< / a > < a href = "#alloc_cnt" > Count Allocator< / a > < / p >
< / li >
< li >
< p > < a href = "#msg_grp_rec_kv" > Field/Value Pair (Key/Value Pair)< / a > < a href = "#alloc_size" > Size Allocator< / a > < / p >
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< div class = "olist loweralpha" >
< ol class = "loweralpha" type = "a" >
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< li >
< p > One (or more) < a href = "#msg_grp_rec_kv" > Field/Value Pairs< / a > < / p >
< / li >
< / ol >
< / div >
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< / li >
< li >
< p > < a href = "#msg_grp_recresp" > Copy of Original Record< / a > < a href = "#alloc_size" > Size Allocator< / a > < sup class = "footnoteref" > [< a class = "footnote" href = "#_footnotedef_1" title = "View footnote." > 1< / a > ]< / sup > < / p >
< / li >
< / ol >
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< / div >
< div class = "sect4" >
< h5 id = "msg_grp_rec_kv" > < a class = "link" href = "#msg_grp_rec_kv" > 3.3.1.1. Field/Value Pair (Key/Value Pair)< / a > < / h5 >
< div class = "paragraph" >
< p > A field/value pair (also referred to as a key/value pair) contains a matched < a href = "#msg_grp_rec_kv_nm" > Field Name< / a > and its < a href = "#msg_grp_rec_kv_val" > Field Value< / a > .< / p >
< / div >
< div class = "paragraph" >
< p > Its structure is:< / p >
< / div >
< div class = "olist arabic" >
< ol class = "arabic" >
< li >
< p > < a href = "#msg_grp_rec_kv_nm" > Field Name< / a > < a href = "#alloc_size" > Size Allocator< / a > < / p >
< / li >
< li >
< p > < a href = "#msg_grp_rec_kv_val" > Field Value< / a > < a href = "#alloc_size" > Size Allocator< / a > < / p >
< / li >
< li >
< p > A single < a href = "#msg_grp_rec_kv_nm" > Field Name< / a > < / p >
< / li >
< li >
< p > A single matching < a href = "#msg_grp_rec_kv_val" > Field Value< / a > < / p >
< / li >
< / ol >
< / div >
< div class = "admonitionblock important" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Important< / div >
< / td >
< td class = "content" >
< div class = "paragraph" >
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< p > Unlike most/all other < a href = "#alloc" > Allocators< / a > for other sections/levels, the field name and value allocators are consecutive < a href = "#alloc_size" > Size Allocators< / a > ! This is because there is < strong > only one< / strong > field name and value per < a href = "#msg_grp_rec" > Record< / a > .< / p >
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< / div >
< / td >
< / tr >
< / table >
< / div >
< div class = "sect5" >
< h6 id = "msg_grp_rec_kv_nm" > < a class = "link" href = "#msg_grp_rec_kv_nm" > 3.3.1.1.1. Field Name< / a > < / h6 >
< div class = "paragraph" >
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< p > The field name is usually from a finite set of allowed names. The < a href = "#msg_grp_rec_kv_val" > Field Value< / a > , while written as bytes, often contains data defined by the field name. (That is, the parsing of < a href = "#msg_grp_rec_kv_val" > Field Value< / a > often depends on its Field Name.) It is recommended that the field name be a UTF-8-compatible string for simplified serializing and < a href = "https://www.wireshark.org/" target = "_blank" rel = "noopener" > on-the-wire debugging< / a > .< / p >
< / div >
< div class = "paragraph" >
< p > While there is no technical requirement that a field name be unique per-< a href = "#msg_grp_rec" > Record< / a > , it is generally recommended (unless emulating/encoding arrays of data in separate < a href = "#msg_grp_rec_kv" > field/value pairs< / a > ).< / p >
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< / div >
< div class = "paragraph" >
< p > Its structure is:< / p >
< / div >
< div class = "olist arabic" >
< ol class = "arabic" >
< li >
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< p > A name/identifier in bytes< / p >
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< / li >
< / ol >
< / div >
< / div >
< div class = "sect5" >
< h6 id = "msg_grp_rec_kv_val" > < a class = "link" href = "#msg_grp_rec_kv_val" > 3.3.1.1.2. Field Value< / a > < / h6 >
< div class = "paragraph" >
< p > A field’ s value is, on the wire, just a series of bytes. The actual content of those bytes, including any structure or encoding, is likely to/probably depends on the paired < a href = "#msg_grp_rec_kv_nm" > Field Name< / a > .< / p >
< / div >
< div class = "paragraph" >
< p > Its structure is:< / p >
< / div >
< div class = "olist arabic" >
< ol class = "arabic" >
< li >
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< p > A value in bytes< / p >
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< / li >
< / ol >
< / div >
< / div >
< / div >
< div class = "sect4" >
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< h5 id = "msg_grp_recresp" > < a class = "link" href = "#msg_grp_recresp" > 3.3.1.2. Copy of Original Record< / a > < / h5 >
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< div class = "paragraph" >
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< p > This contains a "copy" of the original/request’ s < a href = "#msg_grp_rec" > Record< / a > that this record is in response to. It is only present in Response message and must not be included in Request messages.< / p >
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< / div >
< div class = "paragraph" >
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< p > It is a complete < a href = "#msg_grp_rec" > Record< / a > from the request embedded inside the responding Record.< / p >
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< / div >
< div class = "paragraph" >
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< p > For example, if a record contains multiple < a href = "#msg_grp_rec_kv" > field/value pairs< / a > specifying a query of some data then the response record will contain a copy of that record’ s query data.< / p >
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< / div >
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< div class = "admonitionblock note" >
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< table >
< tr >
< td class = "icon" >
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< div class = "title" > Note< / div >
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< / td >
< td class = "content" >
< div class = "paragraph" >
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< p > While < strong > not recommended< / strong > , it < strong > is< / strong > within specification/permissible to "alias" a request record via a session-unique identifier (e.g. < a href = "https://datatracker.ietf.org/doc/html/rfc4122" target = "_blank" rel = "noopener" > UUIDv4< / a > ), < strong > provided< / strong > the promise that the requesting end retains an identifiable copy of/can lookup or associate its original record based on that identifying alias.< / p >
< / div >
< div class = "paragraph" >
< p > For example, a requesting end may specify < em > its own< / em > provided identifier as an < a href = "#msg_grp_rec_kv" > field/value pair< / a > (e.g. < code > identifier:f18231973d08417e877dd1a2f8e8ab74< / code > ) along with additional data. The returning Response Record may then include < strong > only< / strong > an original/request record with an FVP of < code > identifier:f18231973d08417e877dd1a2f8e8ab74< / code > along with the requested data.< / p >
< / div >
< div class = "paragraph" >
< p > Alternatively for another example, a responding end may return a Response Record with an original/request record of a single FVP such as < code > ref_id:46823da27f8749df9dee8f0bded8cce9< / code > or the like. The requesting end < strong > must< / strong > then be able to retrieve the full copy of the original request record as a standalone Response Record based on that < code > ref_id< / code > . Responding ends < strong > may< / strong > enforce lifetimes for request record lookup in this case but they must be promised.< / p >
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< / div >
< / td >
< / tr >
< / table >
< / div >
< / div >
< / div >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "cksum" > < a class = "link" href = "#cksum" > 4. Checksums< / a > < / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
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< p > Checksums are optional for the requesting end but the responding end < strong > must< / strong > send them. < strong > If present< / strong > in the request, the responder < strong > must< / strong > validate to ensure the checksum matches the message body (< a href = "#hdrs_bodystart" > < code > BODYSTART< / code > Header Prefix< / a > to < a href = "#hdrs_bodyend" > < code > BODYEND< / code > Sequence< / a > , inclusive). If the checksum does not match, an error < strong > must< / strong > be returned.< / p >
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< / div >
< div class = "paragraph" >
< p > They are represented as a big-endian-packed uint32.< / p >
< / div >
< div class = "paragraph" >
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< p > The checksum must be prefixed with a < a href = "#hdrs_cksum" > < code > CKSUM< / code > Header Prefix< / a > . If no checksum is provided in a request, this prefix < strong > must not< / strong > be included in the sequence.< / p >
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< / div >
< div class = "admonitionblock tip" >
< table >
< tr >
< td class = "icon" >
< div class = "title" > Tip< / div >
< / td >
< td class = "content" >
< div class = "paragraph" >
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< p > A responder can quickly check if a checksum is present by checking the first byte in requests. If it is < a href = "#hdrs_cksum" > < code > CKSUM< / code > < / a > , a checksum is provided. If it is < a href = "#hdrs_msgstart" > < code > MSGSTART< / code > < / a > , one was < strong > not< / strong > provided.< / p >
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< / div >
< / td >
< / tr >
< / table >
< / div >
< div class = "paragraph" >
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< p > The checksum method used is the < a href = "https://users.ece.cmu.edu/~koopman/crc/crc32.html" target = "_blank" rel = "noopener" > IEEE 802.3 CRC-32< / a > , which should be natively available for all/most implementations/languages as it is perhaps the most ubiquitous of CRC-32 variants (e.g. < a href = "https://docs.python.org/3/library/zlib.html#zlib.crc32" target = "_blank" rel = "noopener" > Python< / a > , < a href = "https://pkg.go.dev/hash/crc32" target = "_blank" rel = "noopener" > Golang< / a > , < a href = "https://github.com/gcc-mirror/gcc/blob/master/libiberty/crc32.c" target = "_blank" rel = "noopener" > GNU C/glibc< / a > (?), < a href = "https://crates.io/keywords/crc32" target = "_blank" rel = "noopener" > Rust< / a > , etc.). (Polynomial < code > 0x04c11db7< / code > , reversed polynomial < code > 0xedb88320< / code > .)< / p >
< / div >
< div class = "paragraph" >
< p > If one needs to implement the appropriate CRC32 implementation, there is extensive detail at the < a href = "https://en.wikipedia.org/wiki/Cyclic_redundancy_check" target = "_blank" rel = "noopener" > CRC Wikipedia article< / a > .< / p >
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< / div >
< div class = "paragraph" >
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< p > To confirm the correct CRC32 implementation is being used (as there are < strong > many< / strong > "CRC-32" algorithms/methods/functions/libraries), the following validations may be used:< / p >
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< / div >
< table class = "tableblock frame-all grid-all stretch" >
< caption class = "title" > Table 1. CRC-32 Validations< / caption >
< colgroup >
< col style = "width: 20%;" >
< col style = "width: 30%;" >
< col style = "width: 10%;" >
< col style = "width: 20%;" >
< col style = "width: 20%;" >
< / colgroup >
< thead >
< tr >
< th class = "tableblock halign-center valign-middle" > String< / th >
< th class = "tableblock halign-center valign-middle" > Bytes< / th >
< th class = "tableblock halign-center valign-middle" > Checksum (integer)< / th >
< th class = "tableblock halign-center valign-middle" > Checksum (bytes, little-endian)< / th >
< th class = "tableblock halign-center valign-middle" > Checksum (bytes, big-endian)< / th >
< / tr >
< / thead >
< tbody >
< tr >
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< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > WireProto< / code > < / p > < / td >
< td class = "tableblock halign-left valign-top" > < p class = "tableblock" > < code > 0x5769726550726f746f< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 815806352< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0x30a03790< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0x9037a030< / code > < / p > < / td >
< / tr >
< tr >
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< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > FooBarBazQuux< / code > < / p > < / td >
< td class = "tableblock halign-left valign-top" > < p class = "tableblock" > < code > 0x466f6f42617242617a51757578< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 983022564< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0xe4bb973a< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0x3a97bbe4< / code > < / p > < / td >
< / tr >
< tr >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0123456789abcdef< / code > < / p > < / td >
< td class = "tableblock halign-left valign-top" > < p class = "tableblock" > < code > 0x30313233343536373839616263646566< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 1757737011< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0x33f0c468< / code > < / p > < / td >
< td class = "tableblock halign-center valign-middle" > < p class = "tableblock" > < code > 0x68c4f033< / code > < / p > < / td >
< / tr >
< / tbody >
< / table >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "hdrs" > < a class = "link" href = "#hdrs" > 5. Headers< / a > < / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
< p > Certain sections are wrapped with an identifying header. Those headers are included below for reference.< / p >
< / div >
< div class = "sect2" >
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< h3 id = "hdrs_respstart" > < a class = "link" href = "#hdrs_respstart" > 5.1. < code > RESPSTART< / code > Indicator< / a > < / h3 >
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< div class = "paragraph" >
< p > Responses have a < a href = "#msg_respstatus" > Response Status< / a > .< sup class = "footnoteref" > [< a class = "footnote" href = "#_footnotedef_1" title = "View footnote." > 1< / a > ]< / sup > < / p >
< / div >
< div class = "paragraph" >
< p > It is either an < code > ACK< / code > (< code > 0x06< / code > ) or < code > NAK< / code > (< code > 0x15< / code > ).< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "hdrs_cksum" > < a class = "link" href = "#hdrs_cksum" > 5.2. < code > CKSUM< / code > Header Prefix< / a > < / h3 >
< div class = "paragraph" >
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< p > A < a href = "#cksum" > checksum< / a > , if provided< sup class = "footnoteref" > [< a class = "footnote" href = "#_footnotedef_2" title = "View footnote." > 2< / a > ]< / sup > < sup class = "footnoteref" > [< a class = "footnote" href = "#_footnotedef_3" title = "View footnote." > 3< / a > ]< / sup > , will have a prefix header of < code > ESC< / code > (< code > 0x1b< / code > ).< / p >
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< / div >
< / div >
< div class = "sect2" >
< h3 id = "hdrs_msgstart" > < a class = "link" href = "#hdrs_msgstart" > 5.3. < code > MSGSTART< / code > Header Prefix< / a > < / h3 >
< div class = "paragraph" >
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< p > The message start header indicates a start of a "message". It is used to delineate operational headers from specification information (e.g. < a href = "#proto_ver" > Protocol Version< / a > ) and data.< / p >
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< / div >
< div class = "paragraph" >
< p > It is an < code > SOH< / code > (< code > 0x01< / code > ).< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "hdrs_bodystart" > < a class = "link" href = "#hdrs_bodystart" > 5.4. < code > BODYSTART< / code > Header Prefix< / a > < / h3 >
< div class = "paragraph" >
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< p > The body start header indicates that data/records follow. All bytes between < code > BODYSTART< / code > and < a href = "#hdrs_bodyend" > < code > BODYEND< / code > < / a > are to be assumed to be directly pertinent to the request/response rather than operational.< / p >
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< / div >
< div class = "paragraph" >
< p > It is an < code > STX< / code > (< code > 0x02< / code > ).< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "hdrs_bodyend" > < a class = "link" href = "#hdrs_bodyend" > 5.5. < code > BODYEND< / code > Sequence< / a > < / h3 >
< div class = "paragraph" >
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< p > The body end prefix indicates the end of data/records. All bytes between < a href = "#hdrs_bodystart" > < code > BODYSTART< / code > < / a > and < code > BODYEND< / code > are to be assumed to be directly pertinent to the request/response rather than operational.< / p >
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< / div >
< div class = "paragraph" >
< p > It is an < code > ETX< / code > (< code > 0x03< / code > ).< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "hdrs_msgend" > < a class = "link" href = "#hdrs_msgend" > 5.6. < code > MSGEND< / code > Sequence< / a > < / h3 >
< div class = "paragraph" >
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< p > The message end prefix indicates that a message in its entirety has ended, and if no further communication is necessary per implementation the connection may be disconnected.< / p >
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< / div >
< div class = "paragraph" >
< p > It is an < code > EOT< / code > (< code > 0x04< / code > ).< / p >
< / div >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "alloc" > < a class = "link" href = "#alloc" > 6. Allocators< / a > < / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
< p > There are two type of allocators included for each following sequence of bytes: < code > count allocators< / code > and < code > size allocators< / code > .< / p >
< / div >
< div class = "paragraph" >
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< p > < a href = "#alloc_size" > Size allocators< / a > can be used by receiving ends to efficiently pre-allocate buffers and for sending ends to indicate the amount of remaining data expected.< / p >
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< / div >
< div class = "paragraph" >
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< p > They are usually preceded with a < a href = "#alloc_cnt" > count allocator< / a > to allow for pre-allocating e.g. slice/array sizes, but not always (e.g. < a href = "#msg_grp_rec_kv" > field/value pairs< / a > have two < a href = "#alloc_size" > size allocators< / a > ).< / p >
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< / div >
< div class = "paragraph" >
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< p > All allocators are unsigned 32-bit integers, big-endian-packed.< / p >
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< / div >
< div class = "sect2" >
< h3 id = "alloc_cnt" > < a class = "link" href = "#alloc_cnt" > 6.1. Count Allocator< / a > < / h3 >
< div class = "paragraph" >
< p > Count allocators indicate < strong > how many< / strong > children objects are contained.< / p >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "alloc_size" > < a class = "link" href = "#alloc_size" > 6.2. Size Allocator< / a > < / h3 >
< div class = "paragraph" >
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< p > Size allocators indicate < strong > how much< / strong > (in bytes) all children objects are combined as one block. They include the allocators themselves of child objects, etc. as well.< / p >
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< / div >
< / div >
< / div >
< / div >
< div class = "sect1" >
< h2 id = "ref" > < a class = "link" href = "#ref" > 7. Reference Model and Examples< / a > < / h2 >
< div class = "sectionbody" >
< div class = "paragraph" >
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< p > For a more visual explanation, given the following e.g. Golang structs from the < a href = "#lib" > Reference Library< / a > (< code > wireproto.Request{}< / code > and < code > wireproto.Response{}< / code > ):< / p >
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< / div >
< div class = "sect2" >
< h3 id = "ref_single" > < a class = "link" href = "#ref_single" > 7.1. Single/Simple< / a > < / h3 >
< div class = "sect3" >
< h4 id = "ref_single_req" > < a class = "link" href = "#ref_single_req" > 7.1.1. Single/Simple Request< / a > < / h4 >
< details >
< summary class = "title" > Example Message Structure (Simple Request)< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "go" > < span class = "k" > package< / span > < span class = "n" > wireproto< / span >
< span class = "k" > var< / span > < span class = "p" > (< / span >
< span class = "c" > // REQUEST (Simple)< / span >
< span class = "n" > testSimpleReq< / span > < span class = "o" > *< / span > < span class = "n" > Request< / span > < span class = "o" > =< / span > < span class = "o" > & < / span > < span class = "n" > Request< / span > < span class = "p" > {< / span >
< span class = "n" > ProtocolVersion< / span > < span class = "o" > :< / span > < span class = "n" > ProtoVersion< / span > < span class = "p" > ,< / span >
< span class = "n" > RecordGroups< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > RequestRecordGroup< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "field1"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "value1"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "field2"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "value2"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > }< / span >
< span class = "p" > )< / span > < / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Would then serialize as (in hex):< / p >
< / div >
< details >
< summary class = "title" > Annotated Hex< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > // REQUEST (Simple)
-------- // (No Checksum Present)
01 // HDR:MSGSTART
00000001 // Protocol Version (1)
02 // HDR:BODYSTART
00000001 // Record Group Count (1)
00000038 // Record Groups Size (56)
// Record Group 1 (56 bytes)
00000001 // Record Count (1)
00000030 // Record Group Size (48)
// Record Group 1, Record 1 (48 bytes)
00000002 // Field/Value Count (2)
00000028 // Record Size (40)
// Record Group 1, Record 1, Field/Value 1 (20 bytes)
00000006 // Field Name Size (6)
00000006 // Field Value Size (6)
6669656c6431 // "field1"
76616c756531 // "value1"
// Record Group 1, Record 1, Field/Value 2 (20 bytes)
00000006 // Field Name Size (6)
00000006 // Field Value Size (6)
6669656c6432 // "field2"
76616c756532 // "value2"
03 // HDR:BODYEND
04 // HDR:MSGEND< / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Or, non-annotated:< / p >
< / div >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > 01000000010200000001000000380000000100000030000000020000002800000006000000066669
656c643176616c75653100000006000000066669656c643276616c7565320304< / code > < / pre >
< / div >
< / div >
< / div >
< div class = "sect3" >
< h4 id = "ref_single_resp" > < a class = "link" href = "#ref_single_resp" > 7.1.2. Single/Simple Response< / a > < / h4 >
< details >
< summary class = "title" > Example Message Structure (Simple Response)< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "go" > < span class = "k" > package< / span > < span class = "n" > wireproto< / span >
< span class = "k" > var< / span > < span class = "p" > (< / span >
< span class = "c" > // RESPONSE (Simple)< / span >
< span class = "n" > testSimpleResp< / span > < span class = "o" > *< / span > < span class = "n" > Response< / span > < span class = "o" > =< / span > < span class = "o" > & < / span > < span class = "n" > Response< / span > < span class = "p" > {< / span >
< span class = "n" > Status< / span > < span class = "o" > :< / span > < span class = "n" > AsciiACK< / span > < span class = "p" > ,< / span >
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< span class = "n" > Checksum< / span > < span class = "o" > :< / span > < span class = "m" > 3472688928< / span > < span class = "p" > ,< / span > < span class = "c" > // 0xcefd0720< / span >
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< span class = "n" > ProtocolVersion< / span > < span class = "o" > :< / span > < span class = "n" > ProtoVersion< / span > < span class = "p" > ,< / span >
< span class = "n" > RecordGroups< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > ResponseRecordGroup< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "data1"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "< arbitrary data> "< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "n" > OriginalRecord< / span > < span class = "o" > :< / span > < span class = "n" > testSimpleReq< / span > < span class = "o" > .< / span > < span class = "n" > RecordGroups< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > Records< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ],< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > }< / span >
< span class = "p" > )< / span > < / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Would then serialize as (in hex):< / p >
< / div >
< details >
< summary class = "title" > Annotated Hex< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > // RESPONSE (Simple)
06 // HDR:RESPSTART (Status: OK)
1b // HDR:CKSUM
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cefd0720 // Checksum Value (3472688928)
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01 // HDR:MSGSTART
00000001 // Protocol Version (1)
02 // HDR:BODYSTART
00000001 // Record Group Count (1)
00000061 // Record Groups Size (97)
// Record Group 1 (97)
00000001 // Record Count (1)
00000059 // Record Group Size (89)
// Record Group 1, Record 1 (89 bytes)
00000001 // Field/Value Count (1)
0000001d // Record Size (29)
00000030 // Request Record Size (48)
// Record Group 1, Record 1, Field/Value 1 (29 bytes)
00000005 // Field Name Size (5)
00000010 // Field Value Size (16)
6461746131 // "data1"
3c6172626974726172792064 // "< arbitrary data> "
6174613e
// Record Group 1, Record 1 (REQUEST RECORD) (48 bytes)
00000002 // Field/Value Count (2)
00000028 // Record Size (40)
// Record Group 1, Record 1, Field/Value 1 (20 bytes)
00000006 // Field Name Size (6)
00000006 // Field Value Size (6)
6669656c6431 // "field1"
76616c756531 // "value1"
// Record Group 1, Record 1, Field/Value 2 (20 bytes)
00000006 // Field Name Size (6)
00000006 // Field Value Size (6)
6669656c6432 // "field2"
76616c756532 // "value2"
03 // HDR:BODYEND
04 // HDR:MSGEND< / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Or, non-annotated:< / p >
< / div >
< div class = "listingblock" >
< div class = "content" >
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< pre class = "rouge highlight" > < code data-lang = "text" > 061bcefd072001000000010200000001000000610000000100000059000000010000001d00000030
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000000050000001064617461313c61726269747261727920646174613e0000000200000028000000
06000000066669656c643176616c75653100000006000000066669656c643276616c7565320304< / code > < / pre >
< / div >
< / div >
< / div >
< / div >
< div class = "sect2" >
< h3 id = "ref_multi" > < a class = "link" href = "#ref_multi" > 7.2. Multiple/Many/Complex< / a > < / h3 >
< div class = "paragraph" >
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< p > Multiple records, record groups, etc. can be specified in one message.< / p >
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< / div >
< div class = "sect3" >
< h4 id = "ref_multi_req" > < a class = "link" href = "#ref_multi_req" > 7.2.1. Complex Request< / a > < / h4 >
< details >
< summary class = "title" > Example Message Structure (Multiple/Many Requests, Single Message)< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "go" > < span class = "k" > package< / span > < span class = "n" > wireproto< / span >
< span class = "k" > var< / span > < span class = "p" > (< / span >
< span class = "c" > // REQUEST (Complex)< / span >
< span class = "n" > testMultiReq< / span > < span class = "o" > *< / span > < span class = "n" > Request< / span > < span class = "o" > =< / span > < span class = "o" > & < / span > < span class = "n" > Request< / span > < span class = "p" > {< / span >
< span class = "n" > ProtocolVersion< / span > < span class = "o" > :< / span > < span class = "n" > ProtoVersion< / span > < span class = "p" > ,< / span >
< span class = "n" > RecordGroups< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > RequestRecordGroup< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldA1A"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueA1A"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldA1B"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueA1B"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldA2A"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueA2A"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldA2B"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueA2B"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldB1A"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueB1A"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldB1B"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueB1B"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > RequestRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldB2A"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueB2A"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "fieldB2B"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "valueB2B"< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > }< / span >
< span class = "p" > )< / span > < / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Would then serialize as (in hex):< / p >
< / div >
< details >
< summary class = "title" > Annotated Hex< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > // REQUEST (Complex)
-------- // (No Checksum Present)
01 // HDR:MSGSTART
00000001 // Protocol Version (1)
02 // HDR:BODYSTART
00000002 // Record Group Count (2)
000000f0 // Record Groups Size (240)
// Record Group 1 (120 bytes)
00000002 // Record Count (2)
00000070 // Record Group Size (112)
// Record Group 1, Record 1 (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 1, Record 1, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413141 // "fieldA1A"
76616c7565413141 // "valueA1A"
// Record Group 1, Record 1, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413142 // "fieldA1B"
76616c7565413142 // "valueA1B"
// Record Group 1, Record 2 (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 1, Record 2, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413241 // "fieldA2A"
76616c7565413241 // "valueA2A"
// Record Group 1, Record 2, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413242 // "fieldA2B"
76616c7565413242 // "valueA2B"
// Record Group 2 (120 bytes)
00000002 // Record Count (2)
00000070 // Record Group Size (112)
// Record Group 2, Record 1 (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 2, Record 1, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423141 // "fieldB1A"
76616c7565423141 // "valueB1A"
// Record Group 2, Record 1, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423142 // "fieldB1B"
76616c7565423142 // "valueB1B"
// Record Group 2, Record 2 (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 2, Record 2, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423241 // "fieldB2A"
76616c7565423241 // "valueB2A"
// Record Group 2, Record 2, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423242 // "fieldB2B"
76616c7565423242 // "valueB2B"
03 // HDR:BODYEND
04 // HDR:MSGEND< / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Or, non-annotated:< / p >
< / div >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > 01000000010200000002000000f00000000200000070000000020000003000000008000000086669
656c6441314176616c756541314100000008000000086669656c6441314276616c75654131420000
00020000003000000008000000086669656c6441324176616c756541324100000008000000086669
656c6441324276616c75654132420000000200000070000000020000003000000008000000086669
656c6442314176616c756542314100000008000000086669656c6442314276616c75654231420000
00020000003000000008000000086669656c6442324176616c756542324100000008000000086669
656c6442324276616c75654232420304< / code > < / pre >
< / div >
< / div >
< / div >
< div class = "sect3" >
< h4 id = "ref_multi_resp" > < a class = "link" href = "#ref_multi_resp" > 7.2.2. Complex Response< / a > < / h4 >
< details >
< summary class = "title" > Example Message Structure (Response to Multiple/Many Requests, Single Message)< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "go" > < span class = "k" > package< / span > < span class = "n" > wireproto< / span >
< span class = "k" > var< / span > < span class = "p" > (< / span >
< span class = "c" > // RESPONSE (Complex)< / span >
< span class = "n" > testMultiResp< / span > < span class = "o" > *< / span > < span class = "n" > Response< / span > < span class = "o" > =< / span > < span class = "o" > & < / span > < span class = "n" > Response< / span > < span class = "p" > {< / span >
< span class = "n" > Status< / span > < span class = "o" > :< / span > < span class = "n" > AsciiACK< / span > < span class = "p" > ,< / span >
2024-07-09 18:30:10 -04:00
< span class = "n" > Checksum< / span > < span class = "o" > :< / span > < span class = "m" > 2928197330< / span > < span class = "p" > ,< / span > < span class = "c" > // 0xae88bed2< / span >
2024-07-07 23:33:21 -04:00
< span class = "n" > ProtocolVersion< / span > < span class = "o" > :< / span > < span class = "n" > ProtoVersion< / span > < span class = "p" > ,< / span >
< span class = "n" > RecordGroups< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > ResponseRecordGroup< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "dataA1"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "< arbitrary data> "< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "n" > OriginalRecord< / span > < span class = "o" > :< / span > < span class = "n" > testMultiReq< / span > < span class = "o" > .< / span > < span class = "n" > RecordGroups< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > Records< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ],< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "dataA2"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "< arbitrary data> "< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "n" > OriginalRecord< / span > < span class = "o" > :< / span > < span class = "n" > testMultiReq< / span > < span class = "o" > .< / span > < span class = "n" > RecordGroups< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > Records< / span > < span class = "p" > [< / span > < span class = "m" > 1< / span > < span class = "p" > ],< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecordGroup< / span > < span class = "p" > {< / span >
< span class = "n" > Records< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "dataB1"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "< arbitrary data> "< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "n" > OriginalRecord< / span > < span class = "o" > :< / span > < span class = "n" > testMultiReq< / span > < span class = "o" > .< / span > < span class = "n" > RecordGroups< / span > < span class = "p" > [< / span > < span class = "m" > 1< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > Records< / span > < span class = "p" > [< / span > < span class = "m" > 0< / span > < span class = "p" > ],< / span >
< span class = "p" > },< / span >
< span class = "o" > & < / span > < span class = "n" > ResponseRecord< / span > < span class = "p" > {< / span >
< span class = "n" > Pairs< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "o" > *< / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "o" > & < / span > < span class = "n" > FieldValuePair< / span > < span class = "p" > {< / span >
< span class = "n" > Name< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "dataB2"< / span > < span class = "p" > ),< / span >
< span class = "n" > Value< / span > < span class = "o" > :< / span > < span class = "p" > []< / span > < span class = "kt" > byte< / span > < span class = "p" > (< / span > < span class = "s" > "< arbitrary data> "< / span > < span class = "p" > ),< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "n" > OriginalRecord< / span > < span class = "o" > :< / span > < span class = "n" > testMultiReq< / span > < span class = "o" > .< / span > < span class = "n" > RecordGroups< / span > < span class = "p" > [< / span > < span class = "m" > 1< / span > < span class = "p" > ]< / span > < span class = "o" > .< / span > < span class = "n" > Records< / span > < span class = "p" > [< / span > < span class = "m" > 1< / span > < span class = "p" > ],< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > },< / span >
< span class = "p" > }< / span >
< span class = "p" > )< / span > < / code > < / pre >
< / div >
< / div >
< / div >
< / details >
< div class = "paragraph" >
< p > Would then serialize as (in hex):< / p >
< / div >
< details >
< summary class = "title" > Annotated Hex< / summary >
< div class = "content" >
< div class = "listingblock" >
< div class = "content" >
< pre class = "rouge highlight" > < code data-lang = "text" > // RESPONSE (Complex)
06 // HDR:RESPSTART (Status: OK)
1b // HDR:CKSUM
2024-07-09 18:30:10 -04:00
ae88bed2 // Checksum Value (2928197330)
2024-07-07 23:33:21 -04:00
01 // HDR:MSGSTART
00000001 // Protocol Version (1)
02 // HDR:BODYSTART
00000002 // Record Group Count (2)
00000198 // Record Groups Size (408)
// Record Group 1 (204)
00000002 // Record Count (2)
000000c4 // Record Group Size (196)
// Record Group 1, Record 1 (98 bytes)
00000001 // Field/Value Count (1)
0000001e // Record Size (30)
00000038 // Request Record Size (56)
// Record Group 1, Record 1, Field/Value 1 (30 bytes)
00000006 // Field Name Size (6)
00000010 // Field Value Size (16)
646174614131 // "dataA1"
3c6172626974726172792064 // "< arbitrary data> "
6174613e
// Record Group 1, Record 1 (REQUEST RECORD) (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 1, Record 1, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413141 // "fieldA1A"
76616c7565413141 // "valueA1A"
// Record Group 1, Record 1, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413142 // "fieldA1B"
76616c7565413142 // "valueA1B"
// Record Group 1, Record 2 (98 bytes)
00000001 // Field/Value Count (1)
0000001e // Record Size (30)
00000038 // Request Record Size (56)
// Record Group 1, Record 2, Field/Value 1 (30 bytes)
00000006 // Field Name Size (6)
00000010 // Field Value Size (16)
646174614132 // "dataA2"
3c6172626974726172792064 // "< arbitrary data> "
6174613e
// Record Group 1, Record 2 (REQUEST RECORD) (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 1, Record 2, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413241 // "fieldA2A"
76616c7565413241 // "valueA2A"
// Record Group 1, Record 2, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64413242 // "fieldA2B"
76616c7565413242 // "valueA2B"
// Record Group 2 (204)
00000002 // Record Count (2)
000000c4 // Record Group Size (196)
// Record Group 2, Record 1 (98 bytes)
00000001 // Field/Value Count (1)
0000001e // Record Size (30)
00000038 // Request Record Size (56)
// Record Group 2, Record 1, Field/Value 1 (30 bytes)
00000006 // Field Name Size (6)
00000010 // Field Value Size (16)
646174614231 // "dataB1"
3c6172626974726172792064 // "< arbitrary data> "
6174613e
// Record Group 2, Record 1 (REQUEST RECORD) (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 2, Record 1, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423141 // "fieldB1A"
76616c7565423141 // "valueB1A"
// Record Group 2, Record 1, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423142 // "fieldB1B"
76616c7565423142 // "valueB1B"
// Record Group 2, Record 2 (98 bytes)
00000001 // Field/Value Count (1)
0000001e // Record Size (30)
00000038 // Request Record Size (56)
// Record Group 2, Record 2, Field/Value 1 (30 bytes)
00000006 // Field Name Size (6)
00000010 // Field Value Size (16)
646174614232 // "dataB2"
3c6172626974726172792064 // "< arbitrary data> "
6174613e
// Record Group 2, Record 2 (REQUEST RECORD) (56 bytes)
00000002 // Field/Value Count (2)
00000030 // Record Size (48)
// Record Group 2, Record 2, Field/Value 1 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423241 // "fieldB2A"
76616c7565423241 // "valueB2A"
// Record Group 2, Record 2, Field/Value 2 (24 bytes)
00000008 // Field Name Size (8)
00000008 // Field Value Size (8)
6669656c64423242 // "fieldB2B"
76616c7565423242 // "valueB2B"
03 // HDR:BODYEND
04 // HDR:MSGEND< / code > < / pre >
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< p > Or, non-annotated:< / p >
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< pre class = "rouge highlight" > < code data-lang = "text" > 061bae88bed2010000000102000000020000019800000002000000c4000000010000001e00000038
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00000006000000106461746141313c61726269747261727920646174613e00000002000000300000
0008000000086669656c6441314176616c756541314100000008000000086669656c644131427661
6c7565413142000000010000001e0000003800000006000000106461746141323c61726269747261
727920646174613e000000020000003000000008000000086669656c6441324176616c7565413241
00000008000000086669656c6441324276616c756541324200000002000000c4000000010000001e
0000003800000006000000106461746142313c61726269747261727920646174613e000000020000
003000000008000000086669656c6442314176616c756542314100000008000000086669656c6442
314276616c7565423142000000010000001e0000003800000006000000106461746142323c617262
69747261727920646174613e000000020000003000000008000000086669656c6442324176616c75
6542324100000008000000086669656c6442324276616c75654232420304< / code > < / pre >
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< hr >
< div class = "footnote" id = "_footnotedef_1" >
< a href = "#_footnoteref_1" > 1< / a > . Response messages only.
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< div class = "footnote" id = "_footnotedef_2" >
< a href = "#_footnoteref_2" > 2< / a > . Optional for Request.
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< div class = "footnote" id = "_footnotedef_3" >
< a href = "#_footnoteref_3" > 3< / a > . Required for Response.
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Last updated 2024-07-10 01:16:51 -0400
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