formatting cleanups

i2p2www/pages/site/docs/spec/ssu.html

 {% extends "global/layout.html" %}
 {% block title %}SSU Protocol Specification{% endblock %}
-{% block lastupdated %}December 2013{% endblock %}
-{% block accuratefor %}0.9.9{% endblock %}
+{% block lastupdated %}January 2014{% endblock %}
+{% block accuratefor %}0.9.10{% endblock %}
 {% block content %}
 
 <p>
@@ -99,10 +99,13 @@ the following bitfields:</p>
   Bit order: 76543210 (bit 7 is MSB)
 
   bits 7-4: payload type
-     bit 3: rekey?
-     bit 2: extended options included
-  bits 1-0: reserved
+     bit 3: rekey, always 0, unimplemented
+     bit 2: extended options included, always 0, unimplemented
+  bits 1-0: reserved, set to 0 for compatibility with future uses
 {% endhighlight %}
+
+<p>The header format is:</p>
+
 {% highlight lang='dataspec' %}
  Header: 37+ bytes
  Encryption starts with the flag byte.
@@ -127,8 +130,15 @@ the following bitfields:</p>
  +----+----+----+----+----+----+         +
  | #opt extended option bytes (optional) |
  ~                                       ~
+ ~                                       ~
+ +----+----+----+----+----+----+----+----+
 {% endhighlight %}
 
+<p>
+Note that rekeying and extended options are unimplemented, so the
+current header size is exactly 37 bytes.
+</p>
+
 
 <h3 id="rekey">Rekeying</h3>
 <p>If the rekey flag is set, 64 bytes of keying material follow the 
@@ -239,6 +249,8 @@ This is the first message sent to establish a session.
     <td>introKey</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |         X, as calculated from DH      |
@@ -257,6 +269,7 @@ This is the first message sent to establish a session.
 
 <p>
 Typical size including header, in current implementation: 304 (IPv4) or 320 (IPv6) bytes
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -299,6 +312,8 @@ This is the response to a Session Request.
         signature and the following 8 bytes padding.</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |         Y, as calculated from DH      |
@@ -333,6 +348,7 @@ This is the response to a Session Request.
 
 <p>
 Typical size including header, in current implementation: 368 bytes (IPv4 or IPv6)
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -390,7 +406,10 @@ bits 3-0: total identity fragments (F) 1-15</pre></li>
     <td>sessionKey</td></tr>
 </table>
 
- <b>Fragment 0 through F-2 (if F &gt; 1):</b>
+<p>
+ <b>Fragment 0 through F-2</b>
+(only if F &gt; 1; currently unused, see notes below) :
+</p>
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |info| cursize |                        |
@@ -405,7 +424,9 @@ bits 3-0: total identity fragments (F) 1-15</pre></li>
  +----+----+----+----+----+----+----+----+
 {% endhighlight %}
  
+<p>
  <b>Fragment F-1 (last or only fragment):</b>
+</p>
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |info| cursize |                        |
@@ -436,6 +457,7 @@ bits 3-0: total identity fragments (F) 1-15</pre></li>
  
 <p>
 Typical size including header, in current implementation: 480 bytes
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -479,14 +501,11 @@ and is sent as of release 0.8.9.
     <td>sessionKey or introKey</td></tr>
 </table>
 
-{% highlight lang='dataspec' %}
- +----+----+----+----+----+----+----+----+
- |              no data                  |
- +----+----+----+----+----+----+----+----+
-{% endhighlight %}
 
 <p>
+This message does not contain any data.
 Typical size including header, in current implementation: 48 bytes
+(before non-mod-16 padding)
 </p>
 
 <h3 id="relayRequest">RelayRequest (type 3)</h3>
@@ -513,6 +532,8 @@ This is the first message sent from Alice to Bob to request an introduction to C
     <td>introKey (or sessionKey, if Alice/Bob is established)</td></tr>
 </table>
  
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |      relay tag    |size| Alice IP addr
@@ -537,6 +558,7 @@ This is the first message sent from Alice to Bob to request an introduction to C
 
 <p>
 Typical size including header, in current implementation: 96 bytes (no Alice IP included) or 112 bytes (4-byte Alice IP included)
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -579,6 +601,8 @@ This is the response to a Relay Request and is sent from Bob to Alice.
     <td>introKey (or sessionKey, if Alice/Bob is established)</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |size|    Charlie IP     | Port (C)|size|
@@ -593,6 +617,7 @@ This is the response to a Relay Request and is sent from Bob to Alice.
 
 <p>
 Typical size including header, in current implementation: 64 (Alice IPv4) or 80 (Alice IPv6) bytes
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -632,6 +657,8 @@ This is the introduction for Alice, which is sent from Bob to Charlie.
     <td>sessionKey</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |size|     Alice IP      | Port (A)|size|
@@ -646,6 +673,7 @@ This is the introduction for Alice, which is sent from Bob to Charlie.
 
 <p>
 Typical size including header, in current implementation: 48 bytes
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>
@@ -736,6 +764,8 @@ byte 1
     <td>sessionKey</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |flag| (additional headers, determined  |
@@ -835,6 +865,8 @@ See <a href="{{ site_url('docs/transport/ssu') }}#peerTesting">the SSU overview
     <td>introKey (or sessionKey if the connection has already been established)</td></tr>
 </table>
 
+<p>Message format:</p>
+
 {% highlight lang='dataspec' %}
  +----+----+----+----+----+----+----+----+
  |    test nonce     |size| Alice IP addr
@@ -855,6 +887,7 @@ See <a href="{{ site_url('docs/transport/ssu') }}#peerTesting">the SSU overview
 
 <p>
 Typical size including header, in current implementation: 80 bytes
+(before non-mod-16 padding)
 </p>
 
 <h4>Notes</h4>

i2p2www/pages/site/docs/spec/streaming.html

@@ -139,6 +139,7 @@ Currently set in the inital SYN packet, otherwise the ackThrough field is always
 Note that this does not save any space, the ackThrough field is before the flags
 and is always present.
 <tr><td>11-15<td>unused<td><td><td>
+Set to zero for compatibility with future uses.
 </table>
 
 <h4>Variable Length Signature Notes</h4>