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<div class="title">fsm.h</div> </div>
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<a href="fsm_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"> * fsm.h - {Link, IP} Control Protocol Finite State Machine definitions.</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"> * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.</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"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modification, are permitted provided that the following conditions</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * the documentation and/or other materials provided with the</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * distribution.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * 3. The name "Carnegie Mellon University" must not be used to</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * endorse or promote products derived from this software without</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * prior written permission. For permission or any legal</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * details, please contact</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * Office of Technology Transfer</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * Carnegie Mellon University</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * 5000 Forbes Avenue</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * Pittsburgh, PA 15213-3890</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * (412) 268-4387, fax: (412) 268-7395</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * tech-transfer@andrew.cmu.edu</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * 4. Redistributions of any form whatsoever must retain the following</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * acknowledgment:</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * "This product includes software developed by Computing Services</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * at Carnegie Mellon University (http://www.cmu.edu/computing/)."</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * $Id: fsm.h,v 1.10 2004/11/13 02:28:15 paulus Exp $</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</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="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#if PPP_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="l00047"></a><span class="lineno"> 47</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#ifndef FSM_H</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#define FSM_H</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "<a class="code" href="ppp_8h.html">ppp.h</a>"</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * Packet header = Code, id, length.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#define HEADERLEN 4</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * CP (LCP, IPCP, etc.) codes.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#define CONFREQ 1 </span><span class="comment">/* Configuration Request */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#define CONFACK 2 </span><span class="comment">/* Configuration Ack */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#define CONFNAK 3 </span><span class="comment">/* Configuration Nak */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#define CONFREJ 4 </span><span class="comment">/* Configuration Reject */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#define TERMREQ 5 </span><span class="comment">/* Termination Request */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define TERMACK 6 </span><span class="comment">/* Termination Ack */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#define CODEREJ 7 </span><span class="comment">/* Code Reject */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</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"> * Each FSM is described by an fsm structure and fsm callbacks.</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">typedef</span> <span class="keyword">struct </span>fsm {</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  ppp_pcb *pcb; <span class="comment">/* PPP Interface */</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">const</span> <span class="keyword">struct </span>fsm_callbacks *callbacks; <span class="comment">/* Callback routines */</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *term_reason; <span class="comment">/* Reason for closing protocol */</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> seen_ack; <span class="comment">/* Have received valid Ack/Nak/Rej to Req */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">/* -- This is our only flag, we might use u_int :1 if we have more flags */</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> protocol; <span class="comment">/* Data Link Layer Protocol field value */</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> state; <span class="comment">/* State */</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flags; <span class="comment">/* Contains option bits */</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> <a class="code" href="kernel_2elf_8c.html#affd99ec09f321a630ec19d0333e291cd">id</a>; <span class="comment">/* Current id */</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> reqid; <span class="comment">/* Current request id */</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> retransmits; <span class="comment">/* Number of retransmissions left */</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> nakloops; <span class="comment">/* Number of nak loops since last ack */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> rnakloops; <span class="comment">/* Number of naks received */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> maxnakloops; <span class="comment">/* Maximum number of nak loops tolerated</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> (necessary because IPCP require a custom large max nak loops value) */</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> term_reason_len; <span class="comment">/* Length of term_reason */</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> } fsm;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</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="keyword">typedef</span> <span class="keyword">struct </span>fsm_callbacks {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  void (*resetci) <span class="comment">/* Reset our Configuration Information */</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  (fsm *);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  int (*cilen) <span class="comment">/* Length of our Configuration Information */</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  (fsm *);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  void (*addci) <span class="comment">/* Add our Configuration Information */</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  (fsm *, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, <span class="keywordtype">int</span> *);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  int (*ackci) <span class="comment">/* ACK our Configuration Information */</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  (fsm *, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, int);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  int (*nakci) <span class="comment">/* NAK our Configuration Information */</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  (fsm *, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, int, int);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  int (*rejci) <span class="comment">/* Reject our Configuration Information */</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  (fsm *, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, int);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  int (*reqci) <span class="comment">/* Request peer's Configuration Information */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  (fsm *, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, <span class="keywordtype">int</span> *, int);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  void (*up) <span class="comment">/* Called when fsm reaches PPP_FSM_OPENED state */</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  (fsm *);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  void (*down) <span class="comment">/* Called when fsm leaves PPP_FSM_OPENED state */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  (fsm *);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  void (*starting) <span class="comment">/* Called when we want the lower layer */</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  (fsm *);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  void (*finished) <span class="comment">/* Called when we don't want the lower layer */</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  (fsm *);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  void (*protreject) <span class="comment">/* Called when Protocol-Reject received */</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  (int);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  void (*retransmit) <span class="comment">/* Retransmission is necessary */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  (fsm *);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  int (*extcode) <span class="comment">/* Called when unknown code received */</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  (fsm *, int, int, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *, int);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *proto_name; <span class="comment">/* String name for protocol (for messages) */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> } fsm_callbacks;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * Link states.</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor">#define PPP_FSM_INITIAL 0 </span><span class="comment">/* Down, hasn't been opened */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="preprocessor">#define PPP_FSM_STARTING 1 </span><span class="comment">/* Down, been opened */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor">#define PPP_FSM_CLOSED 2 </span><span class="comment">/* Up, hasn't been opened */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor">#define PPP_FSM_STOPPED 3 </span><span class="comment">/* Open, waiting for down event */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="preprocessor">#define PPP_FSM_CLOSING 4 </span><span class="comment">/* Terminating the connection, not open */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="preprocessor">#define PPP_FSM_STOPPING 5 </span><span class="comment">/* Terminating, but open */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#define PPP_FSM_REQSENT 6 </span><span class="comment">/* We've sent a Config Request */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#define PPP_FSM_ACKRCVD 7 </span><span class="comment">/* We've received a Config Ack */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="preprocessor">#define PPP_FSM_ACKSENT 8 </span><span class="comment">/* We've sent a Config Ack */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor">#define PPP_FSM_OPENED 9 </span><span class="comment">/* Connection available */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * Flags - indicate options controlling FSM operation</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="preprocessor">#define OPT_PASSIVE 1 </span><span class="comment">/* Don't die if we don't get a response */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor">#define OPT_RESTART 2 </span><span class="comment">/* Treat 2nd OPEN as DOWN, UP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="preprocessor">#define OPT_SILENT 4 </span><span class="comment">/* Wait for peer to speak first */</span><span class="preprocessor"></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">/*</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> * Timeouts.</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor">#if 0 </span><span class="comment">/* moved to ppp_opts.h */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="preprocessor">#define DEFTIMEOUT 3 </span><span class="comment">/* Timeout time in seconds */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="preprocessor">#define DEFMAXTERMREQS 2 </span><span class="comment">/* Maximum Terminate-Request transmissions */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="preprocessor">#define DEFMAXCONFREQS 10 </span><span class="comment">/* Maximum Configure-Request transmissions */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="preprocessor">#define DEFMAXNAKLOOPS 5 </span><span class="comment">/* Maximum number of nak loops */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="preprocessor">#endif </span><span class="comment">/* moved to ppp_opts.h */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</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="comment">/*</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> * Prototypes</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keywordtype">void</span> fsm_init(fsm *f);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">void</span> fsm_lowerup(fsm *f);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">void</span> fsm_lowerdown(fsm *f);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">void</span> fsm_open(fsm *f);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="keywordtype">void</span> fsm_close(fsm *f, <span class="keyword">const</span> <span class="keywordtype">char</span> *reason);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keywordtype">void</span> fsm_input(fsm *f, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *inpacket, <span class="keywordtype">int</span> l);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keywordtype">void</span> fsm_protreject(fsm *f);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="keywordtype">void</span> fsm_sdata(fsm *f, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> code, <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> <span class="keywordtype">id</span>, <span class="keyword">const</span> <a class="code" href="include_2sys_2types_8h.html#ae2b02ed168fc99cff3851603910b1fb6">u_char</a> *data, <span class="keywordtype">int</span> datalen);</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#endif </span><span class="comment">/* FSM_H */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="preprocessor">#endif </span><span class="comment">/* PPP_SUPPORT */</span><span class="preprocessor"></span></div>
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