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UbixOS / doc / xml / ethip6_8c.xml
<?xml version='1.0' encoding='UTF-8' standalone='no'?>
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  <compounddef id="ethip6_8c" kind="file" language="C++">
    <compoundname>ethip6.c</compoundname>
    <includes refid="opt_8h" local="yes">net/opt.h</includes>
    <incdepgraph>
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        <label>net/lwipopts.h</label>
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        <label>net/debug.h</label>
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        <label>sys/_timeval.h</label>
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        <childnode refid="7" relation="include">
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    </incdepgraph>
    <briefdescription>
    </briefdescription>
    <detaileddescription>
<para>Ethernet output for IPv6. Uses ND tables for link-layer addressing. </para>
    </detaileddescription>
    <programlisting>
<codeline lineno="1"></codeline>
<codeline lineno="7"><highlight class="comment">/*</highlight></codeline>
<codeline lineno="8"><highlight class="comment"><sp/>*<sp/>Copyright<sp/>(c)<sp/>2010<sp/>Inico<sp/>Technologies<sp/>Ltd.</highlight></codeline>
<codeline lineno="9"><highlight class="comment"><sp/>*<sp/>All<sp/>rights<sp/>reserved.</highlight></codeline>
<codeline lineno="10"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="11"><highlight class="comment"><sp/>*<sp/>Redistribution<sp/>and<sp/>use<sp/>in<sp/>source<sp/>and<sp/>binary<sp/>forms,<sp/>with<sp/>or<sp/>without<sp/>modification,</highlight></codeline>
<codeline lineno="12"><highlight class="comment"><sp/>*<sp/>are<sp/>permitted<sp/>provided<sp/>that<sp/>the<sp/>following<sp/>conditions<sp/>are<sp/>met:</highlight></codeline>
<codeline lineno="13"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="14"><highlight class="comment"><sp/>*<sp/>1.<sp/>Redistributions<sp/>of<sp/>source<sp/>code<sp/>must<sp/>retain<sp/>the<sp/>above<sp/>copyright<sp/>notice,</highlight></codeline>
<codeline lineno="15"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>this<sp/>list<sp/>of<sp/>conditions<sp/>and<sp/>the<sp/>following<sp/>disclaimer.</highlight></codeline>
<codeline lineno="16"><highlight class="comment"><sp/>*<sp/>2.<sp/>Redistributions<sp/>in<sp/>binary<sp/>form<sp/>must<sp/>reproduce<sp/>the<sp/>above<sp/>copyright<sp/>notice,</highlight></codeline>
<codeline lineno="17"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>this<sp/>list<sp/>of<sp/>conditions<sp/>and<sp/>the<sp/>following<sp/>disclaimer<sp/>in<sp/>the<sp/>documentation</highlight></codeline>
<codeline lineno="18"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>and/or<sp/>other<sp/>materials<sp/>provided<sp/>with<sp/>the<sp/>distribution.</highlight></codeline>
<codeline lineno="19"><highlight class="comment"><sp/>*<sp/>3.<sp/>The<sp/>name<sp/>of<sp/>the<sp/>author<sp/>may<sp/>not<sp/>be<sp/>used<sp/>to<sp/>endorse<sp/>or<sp/>promote<sp/>products</highlight></codeline>
<codeline lineno="20"><highlight class="comment"><sp/>*<sp/><sp/><sp/><sp/>derived<sp/>from<sp/>this<sp/>software<sp/>without<sp/>specific<sp/>prior<sp/>written<sp/>permission.</highlight></codeline>
<codeline lineno="21"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="22"><highlight class="comment"><sp/>*<sp/>THIS<sp/>SOFTWARE<sp/>IS<sp/>PROVIDED<sp/>BY<sp/>THE<sp/>AUTHOR<sp/>``AS<sp/>IS&apos;&apos;<sp/>AND<sp/>ANY<sp/>EXPRESS<sp/>OR<sp/>IMPLIED</highlight></codeline>
<codeline lineno="23"><highlight class="comment"><sp/>*<sp/>WARRANTIES,<sp/>INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>THE<sp/>IMPLIED<sp/>WARRANTIES<sp/>OF</highlight></codeline>
<codeline lineno="24"><highlight class="comment"><sp/>*<sp/>MERCHANTABILITY<sp/>AND<sp/>FITNESS<sp/>FOR<sp/>A<sp/>PARTICULAR<sp/>PURPOSE<sp/>ARE<sp/>DISCLAIMED.<sp/>IN<sp/>NO<sp/>EVENT</highlight></codeline>
<codeline lineno="25"><highlight class="comment"><sp/>*<sp/>SHALL<sp/>THE<sp/>AUTHOR<sp/>BE<sp/>LIABLE<sp/>FOR<sp/>ANY<sp/>DIRECT,<sp/>INDIRECT,<sp/>INCIDENTAL,<sp/>SPECIAL,</highlight></codeline>
<codeline lineno="26"><highlight class="comment"><sp/>*<sp/>EXEMPLARY,<sp/>OR<sp/>CONSEQUENTIAL<sp/>DAMAGES<sp/>(INCLUDING,<sp/>BUT<sp/>NOT<sp/>LIMITED<sp/>TO,<sp/>PROCUREMENT</highlight></codeline>
<codeline lineno="27"><highlight class="comment"><sp/>*<sp/>OF<sp/>SUBSTITUTE<sp/>GOODS<sp/>OR<sp/>SERVICES;<sp/>LOSS<sp/>OF<sp/>USE,<sp/>DATA,<sp/>OR<sp/>PROFITS;<sp/>OR<sp/>BUSINESS</highlight></codeline>
<codeline lineno="28"><highlight class="comment"><sp/>*<sp/>INTERRUPTION)<sp/>HOWEVER<sp/>CAUSED<sp/>AND<sp/>ON<sp/>ANY<sp/>THEORY<sp/>OF<sp/>LIABILITY,<sp/>WHETHER<sp/>IN</highlight></codeline>
<codeline lineno="29"><highlight class="comment"><sp/>*<sp/>CONTRACT,<sp/>STRICT<sp/>LIABILITY,<sp/>OR<sp/>TORT<sp/>(INCLUDING<sp/>NEGLIGENCE<sp/>OR<sp/>OTHERWISE)<sp/>ARISING</highlight></codeline>
<codeline lineno="30"><highlight class="comment"><sp/>*<sp/>IN<sp/>ANY<sp/>WAY<sp/>OUT<sp/>OF<sp/>THE<sp/>USE<sp/>OF<sp/>THIS<sp/>SOFTWARE,<sp/>EVEN<sp/>IF<sp/>ADVISED<sp/>OF<sp/>THE<sp/>POSSIBILITY</highlight></codeline>
<codeline lineno="31"><highlight class="comment"><sp/>*<sp/>OF<sp/>SUCH<sp/>DAMAGE.</highlight></codeline>
<codeline lineno="32"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="33"><highlight class="comment"><sp/>*<sp/>This<sp/>file<sp/>is<sp/>part<sp/>of<sp/>the<sp/>lwIP<sp/>TCP/IP<sp/>stack.</highlight></codeline>
<codeline lineno="34"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="35"><highlight class="comment"><sp/>*<sp/>Author:<sp/>Ivan<sp/>Delamer<sp/>&lt;delamer@inicotech.com&gt;</highlight></codeline>
<codeline lineno="36"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="37"><highlight class="comment"><sp/>*</highlight></codeline>
<codeline lineno="38"><highlight class="comment"><sp/>*<sp/>Please<sp/>coordinate<sp/>changes<sp/>and<sp/>requests<sp/>with<sp/>Ivan<sp/>Delamer</highlight></codeline>
<codeline lineno="39"><highlight class="comment"><sp/>*<sp/>&lt;delamer@inicotech.com&gt;</highlight></codeline>
<codeline lineno="40"><highlight class="comment"><sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="41"><highlight class="normal"></highlight></codeline>
<codeline lineno="42"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="opt_8h" kindref="compound">net/opt.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="43"><highlight class="normal"></highlight></codeline>
<codeline lineno="44"><highlight class="normal"></highlight><highlight class="preprocessor">#if<sp/>LWIP_IPV6<sp/>&amp;&amp;<sp/>LWIP_ETHERNET</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="45"><highlight class="normal"></highlight></codeline>
<codeline lineno="46"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="ethip6_8h" kindref="compound">net/ethip6.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="47"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="nd6_8h" kindref="compound">net/nd6.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="48"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="pbuf_8h" kindref="compound">net/pbuf.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="49"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="ip6_8h" kindref="compound">net/ip6.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="50"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="ip6__addr_8h" kindref="compound">net/ip6_addr.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="51"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="inet__chksum_8h" kindref="compound">net/inet_chksum.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="52"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="netif_8h" kindref="compound">net/netif.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="53"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="icmp6_8h" kindref="compound">net/icmp6.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="54"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="prot_2ethernet_8h" kindref="compound">net/prot/ethernet.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="55"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&quot;<ref refid="f_2ethernet_8h" kindref="compound">netif/ethernet.h</ref>&quot;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="56"><highlight class="normal"></highlight></codeline>
<codeline lineno="57"><highlight class="normal"></highlight><highlight class="preprocessor">#include<sp/>&lt;<ref refid="string_8h" kindref="compound">string.h</ref>&gt;</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="58"><highlight class="normal"></highlight></codeline>
<codeline lineno="78"><highlight class="normal"><ref refid="group__infrastructure__errors_1gaf02d9da80fd66b4f986d2c53d7231ddb" kindref="member">err_t</ref></highlight></codeline>
<codeline lineno="79"><highlight class="normal">ethip6_output(</highlight><highlight class="keyword">struct</highlight><highlight class="normal"><sp/><ref refid="structnetif" kindref="compound">netif</ref><sp/>*<ref refid="structnetif" kindref="compound">netif</ref>,<sp/></highlight><highlight class="keyword">struct</highlight><highlight class="normal"><sp/><ref refid="structpbuf" kindref="compound">pbuf</ref><sp/>*q,<sp/></highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/>ip6_addr_t<sp/>*ip6addr)</highlight></codeline>
<codeline lineno="80"><highlight class="normal">{</highlight></codeline>
<codeline lineno="81"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">struct<sp/></highlight><highlight class="normal"><ref refid="structeth__addr" kindref="compound">eth_addr</ref><sp/>dest;</highlight></codeline>
<codeline lineno="82"><highlight class="normal"><sp/><sp/></highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/><ref refid="group__compiler__abstraction_1ga4caecabca98b43919dd11be1c0d4cd8e" kindref="member">u8_t</ref><sp/>*hwaddr;</highlight></codeline>
<codeline lineno="83"><highlight class="normal"><sp/><sp/><ref refid="group__infrastructure__errors_1gaf02d9da80fd66b4f986d2c53d7231ddb" kindref="member">err_t</ref><sp/>result;</highlight></codeline>
<codeline lineno="84"><highlight class="normal"></highlight></codeline>
<codeline lineno="85"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>multicast<sp/>destination<sp/>IP<sp/>address?<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="86"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(ip6_addr_ismulticast(ip6addr))<sp/>{</highlight></codeline>
<codeline lineno="87"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Hash<sp/>IP<sp/>multicast<sp/>address<sp/>to<sp/>MAC<sp/>address.*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="88"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[0]<sp/>=<sp/>0x33;</highlight></codeline>
<codeline lineno="89"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[1]<sp/>=<sp/>0x33;</highlight></codeline>
<codeline lineno="90"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[2]<sp/>=<sp/>((</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/><ref refid="group__compiler__abstraction_1ga4caecabca98b43919dd11be1c0d4cd8e" kindref="member">u8_t</ref><sp/>*)(&amp;(ip6addr-&gt;addr[3])))[0];</highlight></codeline>
<codeline lineno="91"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[3]<sp/>=<sp/>((</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/><ref refid="group__compiler__abstraction_1ga4caecabca98b43919dd11be1c0d4cd8e" kindref="member">u8_t</ref><sp/>*)(&amp;(ip6addr-&gt;addr[3])))[1];</highlight></codeline>
<codeline lineno="92"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[4]<sp/>=<sp/>((</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/><ref refid="group__compiler__abstraction_1ga4caecabca98b43919dd11be1c0d4cd8e" kindref="member">u8_t</ref><sp/>*)(&amp;(ip6addr-&gt;addr[3])))[2];</highlight></codeline>
<codeline lineno="93"><highlight class="normal"><sp/><sp/><sp/><sp/>dest.addr[5]<sp/>=<sp/>((</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/><ref refid="group__compiler__abstraction_1ga4caecabca98b43919dd11be1c0d4cd8e" kindref="member">u8_t</ref><sp/>*)(&amp;(ip6addr-&gt;addr[3])))[3];</highlight></codeline>
<codeline lineno="94"><highlight class="normal"></highlight></codeline>
<codeline lineno="95"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="comment">/*<sp/>Send<sp/>out.<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="96"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>ethernet_output(<ref refid="structnetif" kindref="compound">netif</ref>,<sp/>q,<sp/>(</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">struct</highlight><highlight class="normal"><sp/><ref refid="structeth__addr" kindref="compound">eth_addr</ref>*)(<ref refid="structnetif" kindref="compound">netif</ref>-&gt;<ref refid="structnetif_1aee967965d999fc1a4c40a66709304e69" kindref="member">hwaddr</ref>),<sp/>&amp;dest,<sp/><ref refid="group__ethernet_1gga4f8559808037803168499a3803900339aab26004eed559217be5dd466a79b1383" kindref="member">ETHTYPE_IPV6</ref>);</highlight></codeline>
<codeline lineno="97"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="98"><highlight class="normal"></highlight></codeline>
<codeline lineno="99"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>We<sp/>have<sp/>a<sp/>unicast<sp/>destination<sp/>IP<sp/>address<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="100"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>@todo<sp/>anycast?<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="101"><highlight class="normal"></highlight></codeline>
<codeline lineno="102"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Ask<sp/>ND6<sp/>what<sp/>to<sp/>do<sp/>with<sp/>the<sp/>packet.<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="103"><highlight class="normal"><sp/><sp/>result<sp/>=<sp/>nd6_get_next_hop_addr_or_queue(<ref refid="structnetif" kindref="compound">netif</ref>,<sp/>q,<sp/>ip6addr,<sp/>&amp;hwaddr);</highlight></codeline>
<codeline lineno="104"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(result<sp/>!=<sp/><ref refid="group__infrastructure__errors_1ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb" kindref="member">ERR_OK</ref>)<sp/>{</highlight></codeline>
<codeline lineno="105"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>result;</highlight></codeline>
<codeline lineno="106"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="107"><highlight class="normal"></highlight></codeline>
<codeline lineno="108"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>If<sp/>no<sp/>hardware<sp/>address<sp/>is<sp/>returned,<sp/>nd6<sp/>has<sp/>queued<sp/>the<sp/>packet<sp/>for<sp/>later.<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="109"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">if</highlight><highlight class="normal"><sp/>(hwaddr<sp/>==<sp/><ref refid="fat__string_8h_1a070d2ce7b6bb7e5c05602aa8c308d0c4" kindref="member">NULL</ref>)<sp/>{</highlight></codeline>
<codeline lineno="110"><highlight class="normal"><sp/><sp/><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/><ref refid="group__infrastructure__errors_1ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb" kindref="member">ERR_OK</ref>;</highlight></codeline>
<codeline lineno="111"><highlight class="normal"><sp/><sp/>}</highlight></codeline>
<codeline lineno="112"><highlight class="normal"></highlight></codeline>
<codeline lineno="113"><highlight class="normal"><sp/><sp/></highlight><highlight class="comment">/*<sp/>Send<sp/>out<sp/>the<sp/>packet<sp/>using<sp/>the<sp/>returned<sp/>hardware<sp/>address.<sp/>*/</highlight><highlight class="normal"></highlight></codeline>
<codeline lineno="114"><highlight class="normal"><sp/><sp/><ref refid="lwipopts_8h_1a8c6e3c1e4f74acb16376188dbf8909ec" kindref="member">SMEMCPY</ref>(dest.addr,<sp/>hwaddr,<sp/>6);</highlight></codeline>
<codeline lineno="115"><highlight class="normal"><sp/><sp/></highlight><highlight class="keywordflow">return</highlight><highlight class="normal"><sp/>ethernet_output(<ref refid="structnetif" kindref="compound">netif</ref>,<sp/>q,<sp/>(</highlight><highlight class="keyword">const</highlight><highlight class="normal"><sp/></highlight><highlight class="keyword">struct</highlight><highlight class="normal"><sp/><ref refid="structeth__addr" kindref="compound">eth_addr</ref>*)(<ref refid="structnetif" kindref="compound">netif</ref>-&gt;<ref refid="structnetif_1aee967965d999fc1a4c40a66709304e69" kindref="member">hwaddr</ref>),<sp/>&amp;dest,<sp/><ref refid="group__ethernet_1gga4f8559808037803168499a3803900339aab26004eed559217be5dd466a79b1383" kindref="member">ETHTYPE_IPV6</ref>);</highlight></codeline>
<codeline lineno="116"><highlight class="normal">}</highlight></codeline>
<codeline lineno="117"><highlight class="normal"></highlight></codeline>
<codeline lineno="118"><highlight class="normal"></highlight><highlight class="preprocessor">#endif<sp/></highlight><highlight class="comment">/*<sp/>LWIP_IPV6<sp/>&amp;&amp;<sp/>LWIP_ETHERNET<sp/>*/</highlight><highlight class="preprocessor"></highlight></codeline>
    </programlisting>
    <location file="C:/Dev/git/UbixOS/sys/net/core/ipv6/ethip6.c"/>
  </compounddef>
</doxygen>