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&#160;<span id="projectnumber">0.0.9</span>
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<div id="projectbrief">An Alternative routing method</div>
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<div class="title">libiptc.h</div> </div>
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<a href="../../d1/d6b/libiptc_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>&#160;<span class="preprocessor">#ifndef _LIBIPTC_H</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define _LIBIPTC_H</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">/* Library which manipulates filtering rules. */</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#ifndef _FWCHAINS_KERNEL_HEADERS_H</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#ad84f43fcb0825aea0de103712ec85413"> 6</a></span>&#160;<span class="preprocessor">#define _FWCHAINS_KERNEL_HEADERS_H</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;</div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;limits.h&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#if defined(__GLIBC__) &amp;&amp; __GLIBC__ == 2</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;netinet/in.h&gt;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;netinet/tcp.h&gt;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;netinet/udp.h&gt;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;net/if.h&gt;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;sys/types.h&gt;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* libc5 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;sys/socket.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;linux/ip.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &lt;linux/in.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &lt;linux/if.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &lt;linux/icmp.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &lt;linux/tcp.h&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;linux/udp.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;linux/types.h&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;linux/in6.h&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &lt;linux/netfilter_ipv4/ip_tables.h&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor">#ifndef IPT_MIN_ALIGN</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="comment">/* ipt_entry has pointers and u_int64_t&#39;s in it, so if you align to</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="comment"> it, you&#39;ll also align to any crazy matches and targets someone</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="comment"> might write */</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#aa43951b3289a62527da1b2430f1cde90"> 38</a></span>&#160;<span class="preprocessor">#define IPT_MIN_ALIGN (__alignof__(struct ipt_entry))</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#a7f5eb514da9a524135ec8f55e347df24"> 41</a></span>&#160;<span class="preprocessor">#define IPT_ALIGN(s) (((s) + ((IPT_MIN_ALIGN)-1)) &amp; ~((IPT_MIN_ALIGN)-1))</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#a1afa0969a05e331565d49d101ed8b391"> 43</a></span>&#160;<span class="keyword">typedef</span> <span class="keywordtype">char</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a1afa0969a05e331565d49d101ed8b391">ipt_chainlabel</a>[32];</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#ad04280efe19acdad5ceb0c7131b479f1"> 45</a></span>&#160;<span class="preprocessor">#define IPTC_LABEL_ACCEPT &quot;ACCEPT&quot;</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#a46395ef7fd7761ae7860c83972ea31de"> 46</a></span>&#160;<span class="preprocessor">#define IPTC_LABEL_DROP &quot;DROP&quot;</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#ab47f5fce9451e2f390204290b9057017"> 47</a></span>&#160;<span class="preprocessor">#define IPTC_LABEL_QUEUE &quot;QUEUE&quot;</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#aa39aeace6ae224c618f13888a1bf7b6f"> 48</a></span>&#160;<span class="preprocessor">#define IPTC_LABEL_RETURN &quot;RETURN&quot;</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment">/* Transparent handle type. */</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="../../d1/d6b/libiptc_8h.html#a2748325528965622493003928cfaf6fd"> 51</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>iptc_handle *<a class="code" href="../../d1/d6b/libiptc_8h.html#a2748325528965622493003928cfaf6fd">iptc_handle_t</a>;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="comment">/* Does this chain exist? */</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a1aabca201f7a386daeacd404f7b55925">iptc_is_chain</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *chain, <span class="keyword">const</span> iptc_handle_t handle);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment">/* Take a snapshot of the rules. Returns NULL on error. */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;iptc_handle_t <a class="code" href="../../d1/d6b/libiptc_8h.html#ae2d8cd75a10268c3b70a9d37e08004b4">iptc_init</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *tablename);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="comment">/* Cleanup after iptc_init(). */</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a05527d7767cd7c5f2d63de887fc2cd37">iptc_free</a>(iptc_handle_t *h);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="comment">/* Iterator functions to run through the chains. Returns NULL at end. */</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#a5c04395566942b486c7ed55f1c0c15f5">iptc_first_chain</a>(iptc_handle_t *handle);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#a9412a314fc05a6d9a2c084e5799df2fe">iptc_next_chain</a>(iptc_handle_t *handle);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="comment">/* Get first rule in the given chain: NULL for empty chain. */</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="keyword">const</span> <span class="keyword">struct </span>ipt_entry *<a class="code" href="../../d1/d6b/libiptc_8h.html#a569e36bb7700cd958c21b8438bc64fc9">iptc_first_rule</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *chain,</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="comment">/* Returns NULL when rules run out. */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="keyword">const</span> <span class="keyword">struct </span>ipt_entry *<a class="code" href="../../d1/d6b/libiptc_8h.html#a343ecb2ab7f20188d5788569b52e6dfc">iptc_next_rule</a>(<span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *prev,</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;<span class="comment">/* Returns a pointer to the target name of this entry. */</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#ae0e7c1d061db651740269bf507c81b26">iptc_get_target</a>(<span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *e,</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="comment">/* Is this a built-in chain? */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a0ab5c13bb80063102f83d3a325399ffe">iptc_builtin</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *chain, <span class="keyword">const</span> iptc_handle_t handle);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;<span class="comment">/* Get the policy of a given built-in chain */</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#a28fc6d33d13f15b7fc688deb0109e9ac">iptc_get_policy</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *chain,</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keyword">struct</span> ipt_counters *counter,</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="comment">/* These functions return TRUE for OK or 0 and set errno. If errno ==</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="comment"> 0, it means there was a version error (ie. upgrade libiptc). */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="comment">/* Rule numbers start at 1 for the first rule. */</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="comment">/* Insert the entry `e&#39; in chain `chain&#39; into position `rulenum&#39;. */</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a8776cb6ed66b4c4b71b440d9f4e8c534">iptc_insert_entry</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *e,</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="comment">/* Atomically replace rule `rulenum&#39; in `chain&#39; with `e&#39;. */</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a56fd2a01d9151068d54808e4be533ea4">iptc_replace_entry</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *e,</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="comment">/* Append entry `e&#39; to chain `chain&#39;. Equivalent to insert with</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="comment"> rulenum = length of chain. */</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a94c437e7d96a62caee840c4eb2edc16a">iptc_append_entry</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *e,</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;<span class="comment">/* Delete the first rule in `chain&#39; which matches `e&#39;, subject to</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;<span class="comment"> matchmask (array of length == origfw) */</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a40f295c3e8ceae85fcca880eeda3fb07">iptc_delete_entry</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">const</span> <span class="keyword">struct</span> ipt_entry *origfw,</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *matchmask,</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment">/* Delete the rule in position `rulenum&#39; in `chain&#39;. */</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a465ad6c36f47ca06e7649956382870e7">iptc_delete_num_entry</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="comment">/* Check the packet `e&#39; on chain `chain&#39;. Returns the verdict, or</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;<span class="comment"> NULL and sets errno. */</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#af3d8e371defe255c32f57aca2cd54b75">iptc_check_packet</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keyword">struct</span> ipt_entry *entry,</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;<span class="comment">/* Flushes the entries in the given chain (ie. empties chain). */</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a20dd1551afafb68d0d0c5e3b2cd28435">iptc_flush_entries</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="comment">/* Zeroes the counters in a chain. */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a85c6738e9e5c5951bc9cea730dfe53f2">iptc_zero_entries</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;<span class="comment">/* Creates a new chain. */</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#ac5fefcbe0159a853ebc9cee7fd84b542">iptc_create_chain</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;<span class="comment">/* Deletes a chain. */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a83f9235c6f1058c4b99deab56ecde875">iptc_delete_chain</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;<span class="comment">/* Renames a chain. */</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a1758fe07d2e3423ce263a56c7c83d97e">iptc_rename_chain</a>(<span class="keyword">const</span> ipt_chainlabel oldname,</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keyword">const</span> ipt_chainlabel newname,</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;<span class="comment">/* Sets the policy on a built-in chain. */</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a493a6e20cce953dbb89aadccbae69088">iptc_set_policy</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keyword">const</span> ipt_chainlabel policy,</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keyword">struct</span> ipt_counters *counters,</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;<span class="comment">/* Get the number of references to this chain */</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a9174e6135f1ce92adc59b385bcff7269">iptc_get_references</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> *ref,</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="comment">/* read packet and byte counters for a specific rule */</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;<span class="keyword">struct </span>ipt_counters *<a class="code" href="../../d1/d6b/libiptc_8h.html#a7fdf361063402c2dbcb149862540799d">iptc_read_counter</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="comment">/* zero packet and byte counters for a specific rule */</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#ab7b70de858ccfdfb617c784ba9f11f56">iptc_zero_counter</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;<span class="comment">/* set packet and byte counters for a specific rule */</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a2378dba67cfecade0ffe43a4c5fe1341">iptc_set_counter</a>(<span class="keyword">const</span> ipt_chainlabel chain,</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rulenum,</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keyword">struct</span> ipt_counters *counters,</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; iptc_handle_t *handle);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;<span class="comment">/* Makes the actual changes. */</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#ac501f3fe20be73430601409b1ac2fb5a">iptc_commit</a>(iptc_handle_t *handle);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;<span class="comment">/* Get raw socket. */</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="keywordtype">int</span> <a class="code" href="../../d1/d6b/libiptc_8h.html#a9ffb0bcb929b90aeec64ef82a88f051c">iptc_get_raw_socket</a>();</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;<span class="comment">/* Translates errno numbers into more human-readable form than strerror. */</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="../../d1/d6b/libiptc_8h.html#acea4cb1fbf2aa22554757cc703643f4b">iptc_strerror</a>(<span class="keywordtype">int</span> err);</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;}</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* _LIBIPTC_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="libiptc_8h_html_ae2d8cd75a10268c3b70a9d37e08004b4"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#ae2d8cd75a10268c3b70a9d37e08004b4">iptc_init</a></div><div class="ttdeci">iptc_handle_t iptc_init(const char *tablename)</div></div>
<div class="ttc" id="libiptc_8h_html_ab7b70de858ccfdfb617c784ba9f11f56"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#ab7b70de858ccfdfb617c784ba9f11f56">iptc_zero_counter</a></div><div class="ttdeci">int iptc_zero_counter(const ipt_chainlabel chain, unsigned int rulenum, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_ac501f3fe20be73430601409b1ac2fb5a"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#ac501f3fe20be73430601409b1ac2fb5a">iptc_commit</a></div><div class="ttdeci">int iptc_commit(iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a9ffb0bcb929b90aeec64ef82a88f051c"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a9ffb0bcb929b90aeec64ef82a88f051c">iptc_get_raw_socket</a></div><div class="ttdeci">int iptc_get_raw_socket()</div></div>
<div class="ttc" id="libiptc_8h_html_a20dd1551afafb68d0d0c5e3b2cd28435"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a20dd1551afafb68d0d0c5e3b2cd28435">iptc_flush_entries</a></div><div class="ttdeci">int iptc_flush_entries(const ipt_chainlabel chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a493a6e20cce953dbb89aadccbae69088"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a493a6e20cce953dbb89aadccbae69088">iptc_set_policy</a></div><div class="ttdeci">int iptc_set_policy(const ipt_chainlabel chain, const ipt_chainlabel policy, struct ipt_counters *counters, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a5c04395566942b486c7ed55f1c0c15f5"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a5c04395566942b486c7ed55f1c0c15f5">iptc_first_chain</a></div><div class="ttdeci">const char * iptc_first_chain(iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a0ab5c13bb80063102f83d3a325399ffe"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a0ab5c13bb80063102f83d3a325399ffe">iptc_builtin</a></div><div class="ttdeci">int iptc_builtin(const char *chain, const iptc_handle_t handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a85c6738e9e5c5951bc9cea730dfe53f2"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a85c6738e9e5c5951bc9cea730dfe53f2">iptc_zero_entries</a></div><div class="ttdeci">int iptc_zero_entries(const ipt_chainlabel chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_af3d8e371defe255c32f57aca2cd54b75"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#af3d8e371defe255c32f57aca2cd54b75">iptc_check_packet</a></div><div class="ttdeci">const char * iptc_check_packet(const ipt_chainlabel chain, struct ipt_entry *entry, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a8776cb6ed66b4c4b71b440d9f4e8c534"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a8776cb6ed66b4c4b71b440d9f4e8c534">iptc_insert_entry</a></div><div class="ttdeci">int iptc_insert_entry(const ipt_chainlabel chain, const struct ipt_entry *e, unsigned int rulenum, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a9174e6135f1ce92adc59b385bcff7269"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a9174e6135f1ce92adc59b385bcff7269">iptc_get_references</a></div><div class="ttdeci">int iptc_get_references(unsigned int *ref, const ipt_chainlabel chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a7fdf361063402c2dbcb149862540799d"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a7fdf361063402c2dbcb149862540799d">iptc_read_counter</a></div><div class="ttdeci">struct ipt_counters * iptc_read_counter(const ipt_chainlabel chain, unsigned int rulenum, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a05527d7767cd7c5f2d63de887fc2cd37"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a05527d7767cd7c5f2d63de887fc2cd37">iptc_free</a></div><div class="ttdeci">void iptc_free(iptc_handle_t *h)</div></div>
<div class="ttc" id="libiptc_8h_html_a2748325528965622493003928cfaf6fd"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a2748325528965622493003928cfaf6fd">iptc_handle_t</a></div><div class="ttdeci">struct iptc_handle * iptc_handle_t</div><div class="ttdef"><b>Definition:</b> libiptc.h:51</div></div>
<div class="ttc" id="libiptc_8h_html_a94c437e7d96a62caee840c4eb2edc16a"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a94c437e7d96a62caee840c4eb2edc16a">iptc_append_entry</a></div><div class="ttdeci">int iptc_append_entry(const ipt_chainlabel chain, const struct ipt_entry *e, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_ae0e7c1d061db651740269bf507c81b26"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#ae0e7c1d061db651740269bf507c81b26">iptc_get_target</a></div><div class="ttdeci">const char * iptc_get_target(const struct ipt_entry *e, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a2378dba67cfecade0ffe43a4c5fe1341"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a2378dba67cfecade0ffe43a4c5fe1341">iptc_set_counter</a></div><div class="ttdeci">int iptc_set_counter(const ipt_chainlabel chain, unsigned int rulenum, struct ipt_counters *counters, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a343ecb2ab7f20188d5788569b52e6dfc"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a343ecb2ab7f20188d5788569b52e6dfc">iptc_next_rule</a></div><div class="ttdeci">const struct ipt_entry * iptc_next_rule(const struct ipt_entry *prev, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a28fc6d33d13f15b7fc688deb0109e9ac"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a28fc6d33d13f15b7fc688deb0109e9ac">iptc_get_policy</a></div><div class="ttdeci">const char * iptc_get_policy(const char *chain, struct ipt_counters *counter, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a56fd2a01d9151068d54808e4be533ea4"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a56fd2a01d9151068d54808e4be533ea4">iptc_replace_entry</a></div><div class="ttdeci">int iptc_replace_entry(const ipt_chainlabel chain, const struct ipt_entry *e, unsigned int rulenum, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_acea4cb1fbf2aa22554757cc703643f4b"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#acea4cb1fbf2aa22554757cc703643f4b">iptc_strerror</a></div><div class="ttdeci">const char * iptc_strerror(int err)</div></div>
<div class="ttc" id="libiptc_8h_html_a569e36bb7700cd958c21b8438bc64fc9"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a569e36bb7700cd958c21b8438bc64fc9">iptc_first_rule</a></div><div class="ttdeci">const struct ipt_entry * iptc_first_rule(const char *chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a9412a314fc05a6d9a2c084e5799df2fe"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a9412a314fc05a6d9a2c084e5799df2fe">iptc_next_chain</a></div><div class="ttdeci">const char * iptc_next_chain(iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a465ad6c36f47ca06e7649956382870e7"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a465ad6c36f47ca06e7649956382870e7">iptc_delete_num_entry</a></div><div class="ttdeci">int iptc_delete_num_entry(const ipt_chainlabel chain, unsigned int rulenum, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a1aabca201f7a386daeacd404f7b55925"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a1aabca201f7a386daeacd404f7b55925">iptc_is_chain</a></div><div class="ttdeci">int iptc_is_chain(const char *chain, const iptc_handle_t handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a40f295c3e8ceae85fcca880eeda3fb07"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a40f295c3e8ceae85fcca880eeda3fb07">iptc_delete_entry</a></div><div class="ttdeci">int iptc_delete_entry(const ipt_chainlabel chain, const struct ipt_entry *origfw, unsigned char *matchmask, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a83f9235c6f1058c4b99deab56ecde875"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a83f9235c6f1058c4b99deab56ecde875">iptc_delete_chain</a></div><div class="ttdeci">int iptc_delete_chain(const ipt_chainlabel chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a1758fe07d2e3423ce263a56c7c83d97e"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a1758fe07d2e3423ce263a56c7c83d97e">iptc_rename_chain</a></div><div class="ttdeci">int iptc_rename_chain(const ipt_chainlabel oldname, const ipt_chainlabel newname, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_ac5fefcbe0159a853ebc9cee7fd84b542"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#ac5fefcbe0159a853ebc9cee7fd84b542">iptc_create_chain</a></div><div class="ttdeci">int iptc_create_chain(const ipt_chainlabel chain, iptc_handle_t *handle)</div></div>
<div class="ttc" id="libiptc_8h_html_a1afa0969a05e331565d49d101ed8b391"><div class="ttname"><a href="../../d1/d6b/libiptc_8h.html#a1afa0969a05e331565d49d101ed8b391">ipt_chainlabel</a></div><div class="ttdeci">char ipt_chainlabel[32]</div><div class="ttdef"><b>Definition:</b> libiptc.h:43</div></div>
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