<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.16"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>UbixOS V2: C:/Dev/git/UbixOS/sys/include/netif/ppp/vj.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(initResizable);
/* @license-end */</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">UbixOS V2
 <span id="projectnumber">2.0</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.16 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('vj_8h_source.html','');});
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">vj.h</div> </div>
</div><!--header-->
<div class="contents">
<a href="vj_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Definitions for tcp compression routines.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * $Id: vj.h,v 1.7 2010/02/22 17:52:09 goldsimon Exp $</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Copyright (c) 1989 Regents of the University of California.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Redistribution and use in source and binary forms are permitted</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * provided that the above copyright notice and this paragraph are</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * duplicated in all such forms and that any documentation,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * advertising materials, and other materials related to such</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * distribution and use acknowledge that the software was developed</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * by the University of California, Berkeley. The name of the</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * University may not be used to endorse or promote products derived</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * - Initial distribution.</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="ppp__opts_8h.html">netif/ppp/ppp_opts.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if PPP_SUPPORT && VJ_SUPPORT </span><span class="comment">/* don't build if not configured for use in lwipopts.h */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#ifndef VJ_H</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#define VJ_H</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="ip_8h.html">net/ip.h</a>"</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="tcp__priv_8h.html">net/priv/tcp_priv.h</a>"</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define MAX_SLOTS 16 </span><span class="comment">/* must be > 2 and < 256 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#define MAX_HDR 128</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Compressed packet format:</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * The first octet contains the packet type (top 3 bits), TCP</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * 'push' bit, and flags that indicate which of the 4 TCP sequence</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * numbers have changed (bottom 5 bits). The next octet is a</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * conversation number that associates a saved IP/TCP header with</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * the compressed packet. The next two octets are the TCP checksum</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * from the original datagram. The next 0 to 15 octets are</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * sequence number changes, one change per bit set in the header</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * (there may be no changes and there are two special cases where</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * the receiver implicitly knows what changed -- see below).</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * There are 5 numbers which can change (they are always inserted</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * in the following order): TCP urgent pointer, window,</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * acknowlegement, sequence number and IP ID. (The urgent pointer</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * is different from the others in that its value is sent, not the</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * change in value.) Since typical use of SLIP links is biased</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * toward small packets (see comments on MTU/MSS below), changes</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * use a variable length coding with one octet for numbers in the</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * range 1 - 255 and 3 octets (0, MSB, LSB) for numbers in the</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * range 256 - 65535 or 0. (If the change in sequence number or</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * ack is more than 65535, an uncompressed packet is sent.)</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * Packet types (must not conflict with IP protocol version)</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * The top nibble of the first octet is the packet type. There are</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> * three possible types: IP (not proto TCP or tcp with one of the</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * control flags set); uncompressed TCP (a normal IP/TCP packet but</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * with the 8-bit protocol field replaced by an 8-bit connection id --</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * this type of packet syncs the sender & receiver); and compressed</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * TCP (described above).</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> * LSB of 4-bit field is TCP "PUSH" bit (a worthless anachronism) and</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> * is logically part of the 4-bit "changes" field that follows. Top</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> * three bits are actual packet type. For backward compatibility</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * and in the interest of conserving bits, numbers are chosen so the</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> * IP protocol version number (4) which normally appears in this nibble</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> * means "IP packet".</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">/* packet types */</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#define TYPE_IP 0x40</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#define TYPE_UNCOMPRESSED_TCP 0x70</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#define TYPE_COMPRESSED_TCP 0x80</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#define TYPE_ERROR 0x00</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">/* Bits in first octet of compressed packet */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#define NEW_C 0x40 </span><span class="comment">/* flag bits for what changed in a packet */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#define NEW_I 0x20</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#define NEW_S 0x08</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#define NEW_A 0x04</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#define NEW_W 0x02</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#define NEW_U 0x01</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">/* reserved, special-case values of above */</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#define SPECIAL_I (NEW_S|NEW_W|NEW_U) </span><span class="comment">/* echoed interactive traffic */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#define SPECIAL_D (NEW_S|NEW_A|NEW_W|NEW_U) </span><span class="comment">/* unidirectional data */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#define SPECIALS_MASK (NEW_S|NEW_A|NEW_W|NEW_U)</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#define TCP_PUSH_BIT 0x10</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> * "state" data for each active tcp conversation on the wire. This is</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> * basically a copy of the entire IP/TCP header from the last packet</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"> * we saw from the conversation together with a small identifier</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> * the transmit & receive ends of the line use to locate saved header.</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">struct </span>cstate {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">struct </span>cstate *cs_next; <span class="comment">/* next most recently used state (xmit only) */</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> cs_hlen; <span class="comment">/* size of hdr (receive only) */</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> cs_id; <span class="comment">/* connection # associated with this state */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> cs_filler;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">union </span>{</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">char</span> csu_hdr[MAX_HDR];</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">struct </span><a class="code" href="structip__hdr.html">ip_hdr</a> csu_ip; <span class="comment">/* ip/tcp hdr from most recent packet */</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  } vjcs_u;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> };</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#define cs_ip vjcs_u.csu_ip</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="preprocessor">#define cs_hdr vjcs_u.csu_hdr</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keyword">struct </span>vjstat {</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_packets; <span class="comment">/* outbound packets */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_compressed; <span class="comment">/* outbound compressed packets */</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_searches; <span class="comment">/* searches for connection state */</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_misses; <span class="comment">/* times couldn't find conn. state */</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_uncompressedin; <span class="comment">/* inbound uncompressed packets */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_compressedin; <span class="comment">/* inbound compressed packets */</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_errorin; <span class="comment">/* inbound unknown type packets */</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> vjs_tossed; <span class="comment">/* inbound packets tossed because of error */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> };</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> * all the state data for one serial line (we need one of these per line).</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">struct </span>vjcompress {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">struct </span>cstate *last_cs; <span class="comment">/* most recently used tstate */</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> last_recv; <span class="comment">/* last rcvd conn. id */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> last_xmit; <span class="comment">/* last sent conn. id */</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> flags;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> maxSlotIndex;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> compressSlot; <span class="comment">/* Flag indicating OK to compress slot ID. */</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="preprocessor">#if LINK_STATS</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">struct </span>vjstat stats;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">struct </span>cstate tstate[MAX_SLOTS]; <span class="comment">/* xmit connection states */</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">struct </span>cstate rstate[MAX_SLOTS]; <span class="comment">/* receive connection states */</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> };</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">/* flag values */</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="preprocessor">#define VJF_TOSS 1U </span><span class="comment">/* tossing rcvd frames because of input err */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">extern</span> <span class="keywordtype">void</span> vj_compress_init (<span class="keyword">struct</span> vjcompress *comp);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">extern</span> <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> vj_compress_tcp (<span class="keyword">struct</span> vjcompress *comp, <span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> **pb);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">extern</span> <span class="keywordtype">void</span> vj_uncompress_err (<span class="keyword">struct</span> vjcompress *comp);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">extern</span> <span class="keywordtype">int</span> vj_uncompress_uncomp(<span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> *nb, <span class="keyword">struct</span> vjcompress *comp);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="keyword">extern</span> <span class="keywordtype">int</span> vj_uncompress_tcp (<span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> **nb, <span class="keyword">struct</span> vjcompress *comp);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="preprocessor">#endif </span><span class="comment">/* VJ_H */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="preprocessor">#endif </span><span class="comment">/* PPP_SUPPORT && VJ_SUPPORT */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div><div class="ttdeci">uint16_t u16_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00124">arch.h:124</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4c14294869aceba3ef9d4c0c302d0f33"><div class="ttname"><a href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a></div><div class="ttdeci">uint32_t u32_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00126">arch.h:126</a></div></div>
<div class="ttc" id="astructip__hdr_html"><div class="ttname"><a href="structip__hdr.html">ip_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2ip4_8h_source.html#l00071">ip4.h:71</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4caecabca98b43919dd11be1c0d4cd8e"><div class="ttname"><a href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a></div><div class="ttdeci">uint8_t u8_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00122">arch.h:122</a></div></div>
<div class="ttc" id="atcp__priv_8h_html"><div class="ttname"><a href="tcp__priv_8h.html">tcp_priv.h</a></div></div>
<div class="ttc" id="aip_8h_html"><div class="ttname"><a href="ip_8h.html">ip.h</a></div></div>
<div class="ttc" id="appp__opts_8h_html"><div class="ttname"><a href="ppp__opts_8h.html">ppp_opts.h</a></div></div>
<div class="ttc" id="astructpbuf_html"><div class="ttname"><a href="structpbuf.html">pbuf</a></div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00142">pbuf.h:142</a></div></div>
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_e6bb53534ac0e427887cf7a94c0c004e.html">C:</a></li><li class="navelem"><a class="el" href="dir_d99d5d4662bf24521eef49da6a8cd34d.html">Dev</a></li><li class="navelem"><a class="el" href="dir_474a4b306371cf7e7f6fa12cb0b77df6.html">git</a></li><li class="navelem"><a class="el" href="dir_849109bbd106d461b128d63e5babcedf.html">UbixOS</a></li><li class="navelem"><a class="el" href="dir_6ec99f6d7d5182ba8913209ab70c9f18.html">sys</a></li><li class="navelem"><a class="el" href="dir_d1be8160e739b6eed1f7843efdbae1b3.html">include</a></li><li class="navelem"><a class="el" href="dir_d30d4e36b590a245c15c34f21c61e7a6.html">netif</a></li><li class="navelem"><a class="el" href="dir_60a47962a3554048f3afe735257bc308.html">ppp</a></li><li class="navelem"><a class="el" href="vj_8h.html">vj.h</a></li>
<li class="footer">Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.16 </li>
</ul>
</div>
</body>
</html>
