From 69192d956aa2b6b3dbf87bac0e265e718b49dd70 Mon Sep 17 00:00:00 2001
From: bt <bt@rctt.net>
Date: Tue, 10 Mar 2026 14:48:51 +0100
Subject: Update spec

---
 cmd/client/main.go |   2 +-
 solec.ksy          |  21 ++
 solec.lua          | 155 +++++++++++----
 solec.svg          | 549 ++++++++++++++++++++++++++++++++---------------------
 4 files changed, 468 insertions(+), 259 deletions(-)

diff --git a/cmd/client/main.go b/cmd/client/main.go
index bf28e87..6e5d996 100644
--- a/cmd/client/main.go
+++ b/cmd/client/main.go
@@ -29,7 +29,7 @@ func main() {
 func ping(conn net.Conn) {
 	for {
 		log.Print("ping")
-		data, err := core.Encode(core.Ping{})
+		data, err := core.Encode(core.Pong{Timestamp: time.Now()})
 		if err != nil {
 			panic(err)
 		}
diff --git a/solec.ksy b/solec.ksy
index 01c7481..82f3bf7 100644
--- a/solec.ksy
+++ b/solec.ksy
@@ -21,6 +21,10 @@ seq:
     type:
       switch-on: payload_type
       cases:
+        'type::handshake': handshake
+        'type::ping': ping
+        'type::pong': pong
+#       'type::message': message
         'type::test': test
 
 types:
@@ -32,13 +36,30 @@ types:
         type: str
         size: len_payload
         encoding: UTF-8
+
   binary:
     seq:
       - id: len_payload
         type: u2
       - id: payload
         size: len_payload
+
+  handshake:
+    seq:
+      - id: proto_ver_major
+        type: u1
+      - id: proto_ver_minor
+        type: u1
+
+  ping: {}
+
+  pong:
+    seq:
+      - id: timestamp
+        type: u8
+
   test:
+    doc: Test payload, used for parsers testing
     seq:
       - id: num1
         type: u1
diff --git a/solec.lua b/solec.lua
index f48831b..e4c8514 100644
--- a/solec.lua
+++ b/solec.lua
@@ -13,15 +13,6 @@ local Solec_payload_type = ProtoField.new('payload_type', 'Solec.payload_type',
 table.insert(proto.fields, Solec_payload_type)
 local Solec_payload_length = ProtoField.new('payload_length', 'Solec.payload_length', ftypes.UINT32)
 table.insert(proto.fields, Solec_payload_length)
-local Solec_String_len_payload = ProtoField.new('len_payload', 'Solec.String.len_payload', ftypes.UINT32)
-table.insert(proto.fields, Solec_String_len_payload)
-local str_decode = require("string_decode")
-local Solec_String_payload = ProtoField.new('payload', 'Solec.String.payload', ftypes.STRINGZ)
-table.insert(proto.fields, Solec_String_payload)
-local Solec_Binary_len_payload = ProtoField.new('len_payload', 'Solec.Binary.len_payload', ftypes.UINT32)
-table.insert(proto.fields, Solec_Binary_len_payload)
-local Solec_Binary_payload = ProtoField.new('payload', 'Solec.Binary.payload', ftypes.BYTES)
-table.insert(proto.fields, Solec_Binary_payload)
 local Solec_Test_num1 = ProtoField.new('num1', 'Solec.Test.num1', ftypes.UINT8)
 table.insert(proto.fields, Solec_Test_num1)
 local Solec_Test_time1 = ProtoField.new('time1', 'Solec.Test.time1', ftypes.UINT32)
@@ -32,6 +23,21 @@ local Solec_Test_num3 = ProtoField.new('num3', 'Solec.Test.num3', ftypes.UINT32)
 table.insert(proto.fields, Solec_Test_num3)
 local Solec_Test_num4 = ProtoField.new('num4', 'Solec.Test.num4', ftypes.UINT32)
 table.insert(proto.fields, Solec_Test_num4)
+local Solec_Binary_len_payload = ProtoField.new('len_payload', 'Solec.Binary.len_payload', ftypes.UINT32)
+table.insert(proto.fields, Solec_Binary_len_payload)
+local Solec_Binary_payload = ProtoField.new('payload', 'Solec.Binary.payload', ftypes.BYTES)
+table.insert(proto.fields, Solec_Binary_payload)
+local Solec_String_len_payload = ProtoField.new('len_payload', 'Solec.String.len_payload', ftypes.UINT32)
+table.insert(proto.fields, Solec_String_len_payload)
+local str_decode = require("string_decode")
+local Solec_String_payload = ProtoField.new('payload', 'Solec.String.payload', ftypes.STRINGZ)
+table.insert(proto.fields, Solec_String_payload)
+local Solec_Handshake_proto_ver_major = ProtoField.new('proto_ver_major', 'Solec.Handshake.proto_ver_major', ftypes.UINT8)
+table.insert(proto.fields, Solec_Handshake_proto_ver_major)
+local Solec_Handshake_proto_ver_minor = ProtoField.new('proto_ver_minor', 'Solec.Handshake.proto_ver_minor', ftypes.UINT8)
+table.insert(proto.fields, Solec_Handshake_proto_ver_minor)
+local Solec_Pong_timestamp = ProtoField.new('timestamp', 'Solec.Pong.timestamp', ftypes.UINT32)
+table.insert(proto.fields, Solec_Pong_timestamp)
 
 function proto.dissector(tvb, pinfo, root)
   pinfo.cols.protocol = 'Solec'
@@ -67,7 +73,19 @@ function Solec:_read()
   self._tree:add(Solec_payload_length, self._io._io.tvb(_offset, self._io:pos() - _offset), self.payload_length)
   local _offset = self._io:pos()
   local _on = self.payload_type
-  if _on == Solec.Type.test then
+  if _on == Solec.Type.handshake then
+    local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'payload')
+    self.payload = Solec.Handshake(self._io, _tree, self, self._root)
+    _tree:set_len(self._io:pos() - _offset)
+  elseif _on == Solec.Type.ping then
+    local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'payload')
+    self.payload = Solec.Ping(self._io, _tree, self, self._root)
+    _tree:set_len(self._io:pos() - _offset)
+  elseif _on == Solec.Type.pong then
+    local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'payload')
+    self.payload = Solec.Pong(self._io, _tree, self, self._root)
+    _tree:set_len(self._io:pos() - _offset)
+  elseif _on == Solec.Type.test then
     local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'payload')
     self.payload = Solec.Test(self._io, _tree, self, self._root)
     _tree:set_len(self._io:pos() - _offset)
@@ -75,9 +93,11 @@ function Solec:_read()
 end
 
 
-Solec.String = class.class(KaitaiStruct)
+-- 
+-- Test payload, used for parsers testing.
+Solec.Test = class.class(KaitaiStruct)
 
-function Solec.String:_init(io, tree, parent, root)
+function Solec.Test:_init(io, tree, parent, root)
   KaitaiStruct._init(self, io)
   self._parent = parent
   self._root = root or self
@@ -85,13 +105,34 @@ function Solec.String:_init(io, tree, parent, root)
   self:_read()
 end
 
-function Solec.String:_read()
+function Solec.Test:_read()
   local _offset = self._io:pos()
-  self.len_payload = self._io:read_u2be()
-  self._tree:add(Solec_String_len_payload, self._io._io.tvb(_offset, self._io:pos() - _offset), self.len_payload)
+  self.num1 = self._io:read_u1()
+  self._tree:add(Solec_Test_num1, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num1)
   local _offset = self._io:pos()
-  self.payload = str_decode.decode(self._io:read_bytes(self.len_payload), "UTF-8")
-  self._tree:add(Solec_String_payload, self._io._io.tvb(_offset, self._io:pos() - _offset), self.payload)
+  self.time1 = self._io:read_u8be()
+  self._tree:add(Solec_Test_time1, self._io._io.tvb(_offset, self._io:pos() - _offset), self.time1)
+  local _offset = self._io:pos()
+  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'str1')
+  self.str1 = Solec.String(self._io, _tree, self, self._root)
+  _tree:set_len(self._io:pos() - _offset)
+  local _offset = self._io:pos()
+  self.num2 = self._io:read_u2be()
+  self._tree:add(Solec_Test_num2, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num2)
+  local _offset = self._io:pos()
+  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'bin1')
+  self.bin1 = Solec.Binary(self._io, _tree, self, self._root)
+  _tree:set_len(self._io:pos() - _offset)
+  local _offset = self._io:pos()
+  self.num3 = self._io:read_u4be()
+  self._tree:add(Solec_Test_num3, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num3)
+  local _offset = self._io:pos()
+  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'str2')
+  self.str2 = Solec.String(self._io, _tree, self, self._root)
+  _tree:set_len(self._io:pos() - _offset)
+  local _offset = self._io:pos()
+  self.num4 = self._io:read_u8be()
+  self._tree:add(Solec_Test_num4, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num4)
 end
 
 
@@ -115,9 +156,9 @@ function Solec.Binary:_read()
 end
 
 
-Solec.Test = class.class(KaitaiStruct)
+Solec.String = class.class(KaitaiStruct)
 
-function Solec.Test:_init(io, tree, parent, root)
+function Solec.String:_init(io, tree, parent, root)
   KaitaiStruct._init(self, io)
   self._parent = parent
   self._root = root or self
@@ -125,34 +166,64 @@ function Solec.Test:_init(io, tree, parent, root)
   self:_read()
 end
 
-function Solec.Test:_read()
-  local _offset = self._io:pos()
-  self.num1 = self._io:read_u1()
-  self._tree:add(Solec_Test_num1, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num1)
-  local _offset = self._io:pos()
-  self.time1 = self._io:read_u8be()
-  self._tree:add(Solec_Test_time1, self._io._io.tvb(_offset, self._io:pos() - _offset), self.time1)
-  local _offset = self._io:pos()
-  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'str1')
-  self.str1 = Solec.String(self._io, _tree, self, self._root)
-  _tree:set_len(self._io:pos() - _offset)
+function Solec.String:_read()
   local _offset = self._io:pos()
-  self.num2 = self._io:read_u2be()
-  self._tree:add(Solec_Test_num2, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num2)
+  self.len_payload = self._io:read_u2be()
+  self._tree:add(Solec_String_len_payload, self._io._io.tvb(_offset, self._io:pos() - _offset), self.len_payload)
   local _offset = self._io:pos()
-  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'bin1')
-  self.bin1 = Solec.Binary(self._io, _tree, self, self._root)
-  _tree:set_len(self._io:pos() - _offset)
+  self.payload = str_decode.decode(self._io:read_bytes(self.len_payload), "UTF-8")
+  self._tree:add(Solec_String_payload, self._io._io.tvb(_offset, self._io:pos() - _offset), self.payload)
+end
+
+
+Solec.Ping = class.class(KaitaiStruct)
+
+function Solec.Ping:_init(io, tree, parent, root)
+  KaitaiStruct._init(self, io)
+  self._parent = parent
+  self._root = root or self
+  self._tree = tree
+  self:_read()
+end
+
+function Solec.Ping:_read()
+end
+
+
+Solec.Handshake = class.class(KaitaiStruct)
+
+function Solec.Handshake:_init(io, tree, parent, root)
+  KaitaiStruct._init(self, io)
+  self._parent = parent
+  self._root = root or self
+  self._tree = tree
+  self:_read()
+end
+
+function Solec.Handshake:_read()
   local _offset = self._io:pos()
-  self.num3 = self._io:read_u4be()
-  self._tree:add(Solec_Test_num3, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num3)
+  self.proto_ver_major = self._io:read_u1()
+  self._tree:add(Solec_Handshake_proto_ver_major, self._io._io.tvb(_offset, self._io:pos() - _offset), self.proto_ver_major)
   local _offset = self._io:pos()
-  local _tree = self._tree:add(self._io._io.tvb(_offset, 0), 'str2')
-  self.str2 = Solec.String(self._io, _tree, self, self._root)
-  _tree:set_len(self._io:pos() - _offset)
+  self.proto_ver_minor = self._io:read_u1()
+  self._tree:add(Solec_Handshake_proto_ver_minor, self._io._io.tvb(_offset, self._io:pos() - _offset), self.proto_ver_minor)
+end
+
+
+Solec.Pong = class.class(KaitaiStruct)
+
+function Solec.Pong:_init(io, tree, parent, root)
+  KaitaiStruct._init(self, io)
+  self._parent = parent
+  self._root = root or self
+  self._tree = tree
+  self:_read()
+end
+
+function Solec.Pong:_read()
   local _offset = self._io:pos()
-  self.num4 = self._io:read_u8be()
-  self._tree:add(Solec_Test_num4, self._io._io.tvb(_offset, self._io:pos() - _offset), self.num4)
+  self.timestamp = self._io:read_u8be()
+  self._tree:add(Solec_Pong_timestamp, self._io._io.tvb(_offset, self._io:pos() - _offset), self.timestamp)
 end
 
 
diff --git a/solec.svg b/solec.svg
index 30b2ba8..360c759 100644
--- a/solec.svg
+++ b/solec.svg
@@ -4,274 +4,391 @@
 <!-- Generated by graphviz version 14.1.3 (20260303.0454)
  -->
 <!-- Pages: 1 -->
-<svg width="942pt" height="341pt"
- viewBox="0.00 0.00 942.00 341.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 337)">
-<polygon fill="white" stroke="none" points="-4,4 -4,-337 937.5,-337 937.5,4 -4,4"/>
+<svg width="1064pt" height="627pt"
+ viewBox="0.00 0.00 1064.00 627.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 623)">
+<polygon fill="white" stroke="none" points="-4,4 -4,-623 1059.75,-623 1059.75,4 -4,4"/>
 <g id="clust1" class="cluster">
 <title>cluster__solec</title>
-<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="8,-8 8,-325 925.5,-325 925.5,-8 8,-8"/>
-<text xml:space="preserve" text-anchor="middle" x="466.75" y="-307.7" font-family="Times,serif" font-size="14.00">Solec</text>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="8,-8 8,-611 1047.75,-611 1047.75,-8 8,-8"/>
+<text xml:space="preserve" text-anchor="middle" x="527.88" y="-593.7" font-family="Times,serif" font-size="14.00">Solec</text>
 </g>
 <g id="clust2" class="cluster">
 <title>cluster__binary</title>
-<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="668,-16 668,-150 901,-150 901,-16 668,-16"/>
-<text xml:space="preserve" text-anchor="middle" x="784.5" y="-132.7" font-family="Times,serif" font-size="14.00">Solec::Binary</text>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="790.25,-16 790.25,-150 1023.25,-150 1023.25,-16 790.25,-16"/>
+<text xml:space="preserve" text-anchor="middle" x="906.75" y="-132.7" font-family="Times,serif" font-size="14.00">Solec::Binary</text>
 </g>
 <g id="clust3" class="cluster">
-<title>cluster__string</title>
-<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="651.5,-158 651.5,-292 917.5,-292 917.5,-158 651.5,-158"/>
-<text xml:space="preserve" text-anchor="middle" x="784.5" y="-274.7" font-family="Times,serif" font-size="14.00">Solec::String</text>
+<title>cluster__handshake</title>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="542.5,-462 542.5,-578 753.75,-578 753.75,-462 542.5,-462"/>
+<text xml:space="preserve" text-anchor="middle" x="648.12" y="-560.7" font-family="Times,serif" font-size="14.00">Solec::Handshake</text>
 </g>
 <g id="clust4" class="cluster">
+<title>cluster__ping</title>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="583.38,-377 583.38,-454 712.88,-454 712.88,-377 583.38,-377"/>
+<text xml:space="preserve" text-anchor="middle" x="648.12" y="-436.7" font-family="Times,serif" font-size="14.00">Solec::Ping</text>
+</g>
+<g id="clust5" class="cluster">
+<title>cluster__pong</title>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="558.25,-275 558.25,-369 738,-369 738,-275 558.25,-275"/>
+<text xml:space="preserve" text-anchor="middle" x="648.12" y="-351.7" font-family="Times,serif" font-size="14.00">Solec::Pong</text>
+</g>
+<g id="clust6" class="cluster">
+<title>cluster__string</title>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="773.75,-158 773.75,-292 1039.75,-292 1039.75,-158 773.75,-158"/>
+<text xml:space="preserve" text-anchor="middle" x="906.75" y="-274.7" font-family="Times,serif" font-size="14.00">Solec::String</text>
+</g>
+<g id="clust7" class="cluster">
 <title>cluster__test</title>
-<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="467.5,-41 467.5,-292 631.5,-292 631.5,-41 467.5,-41"/>
-<text xml:space="preserve" text-anchor="middle" x="549.5" y="-274.7" font-family="Times,serif" font-size="14.00">Solec::Test</text>
+<polygon fill="none" stroke="black" stroke-dasharray="1,5" points="566.12,-16 566.12,-267 730.12,-267 730.12,-16 566.12,-16"/>
+<text xml:space="preserve" text-anchor="middle" x="648.12" y="-249.7" font-family="Times,serif" font-size="14.00">Solec::Test</text>
 </g>
 <!-- solec__seq -->
 <g id="node1" class="node">
 <title>solec__seq</title>
-<polygon fill="#e0ffe0" stroke="none" points="24,-220.5 24,-243 48.75,-243 48.75,-220.5 24,-220.5"/>
-<polygon fill="none" stroke="black" points="24,-220.5 24,-243 48.75,-243 48.75,-220.5 24,-220.5"/>
-<text xml:space="preserve" text-anchor="start" x="27" y="-227.25" font-family="Times,serif" font-size="14.00">pos</text>
-<polygon fill="#e0ffe0" stroke="none" points="48.75,-220.5 48.75,-243 75.75,-243 75.75,-220.5 48.75,-220.5"/>
-<polygon fill="none" stroke="black" points="48.75,-220.5 48.75,-243 75.75,-243 75.75,-220.5 48.75,-220.5"/>
-<text xml:space="preserve" text-anchor="start" x="51.75" y="-227.25" font-family="Times,serif" font-size="14.00">size</text>
-<polygon fill="#e0ffe0" stroke="none" points="75.75,-220.5 75.75,-243 202.5,-243 202.5,-220.5 75.75,-220.5"/>
-<polygon fill="none" stroke="black" points="75.75,-220.5 75.75,-243 202.5,-243 202.5,-220.5 75.75,-220.5"/>
-<text xml:space="preserve" text-anchor="start" x="127.5" y="-227.25" font-family="Times,serif" font-size="14.00">type</text>
-<polygon fill="#e0ffe0" stroke="none" points="202.5,-220.5 202.5,-243 291.75,-243 291.75,-220.5 202.5,-220.5"/>
-<polygon fill="none" stroke="black" points="202.5,-220.5 202.5,-243 291.75,-243 291.75,-220.5 202.5,-220.5"/>
-<text xml:space="preserve" text-anchor="start" x="241.88" y="-227.25" font-family="Times,serif" font-size="14.00">id</text>
-<polygon fill="none" stroke="black" points="24,-198 24,-220.5 48.75,-220.5 48.75,-198 24,-198"/>
-<text xml:space="preserve" text-anchor="start" x="33" y="-204.75" font-family="Times,serif" font-size="14.00">0</text>
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-<text xml:space="preserve" text-anchor="start" x="210.75" y="-204.75" font-family="Times,serif" font-size="14.00">payload_type</text>
-<polygon fill="none" stroke="black" points="24,-175.5 24,-198 48.75,-198 48.75,-175.5 24,-175.5"/>
-<text xml:space="preserve" text-anchor="start" x="33" y="-182.25" font-family="Times,serif" font-size="14.00">1</text>
-<polygon fill="none" stroke="black" points="48.75,-175.5 48.75,-198 75.75,-198 75.75,-175.5 48.75,-175.5"/>
-<text xml:space="preserve" text-anchor="start" x="58.88" y="-182.25" font-family="Times,serif" font-size="14.00">2</text>
-<polygon fill="none" stroke="black" points="75.75,-175.5 75.75,-198 202.5,-198 202.5,-175.5 75.75,-175.5"/>
-<text xml:space="preserve" text-anchor="start" x="126" y="-182.25" font-family="Times,serif" font-size="14.00">u2be</text>
-<polygon fill="none" stroke="black" points="202.5,-175.5 202.5,-198 291.75,-198 291.75,-175.5 202.5,-175.5"/>
-<text xml:space="preserve" text-anchor="start" x="205.5" y="-182.25" font-family="Times,serif" font-size="14.00">payload_length</text>
-<polygon fill="none" stroke="black" points="24,-153 24,-175.5 48.75,-175.5 48.75,-153 24,-153"/>
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+<!-- solec__seq_payload_switch&#45;&gt;handshake__seq -->
+<g id="edge2" class="edge">
+<title>solec__seq_payload_switch:case0&#45;&gt;handshake__seq</title>
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+<!-- solec__seq_payload_switch&#45;&gt;pong__seq -->
+<g id="edge4" class="edge">
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-- 
cgit v1.2.3