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<div class="title">ip.h File Reference</div> </div>
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<div class="textblock"><code>#include "<a class="el" href="../../dc/dba/opt_8h_source.html">net/opt.h</a>"</code><br />
<code>#include "<a class="el" href="../../d4/da4/def_8h_source.html">net/def.h</a>"</code><br />
<code>#include "<a class="el" href="../../d0/d35/pbuf_8h_source.html">net/pbuf.h</a>"</code><br />
<code>#include "<a class="el" href="../../de/df7/ip__addr_8h_source.html">net/ip_addr.h</a>"</code><br />
<code>#include "<a class="el" href="../../d6/d40/err_8h_source.html">net/err.h</a>"</code><br />
<code>#include "<a class="el" href="../../d9/d69/netif_8h_source.html">net/netif.h</a>"</code><br />
<code>#include "<a class="el" href="../../d6/da5/ip4_8h_source.html">net/ip4.h</a>"</code><br />
<code>#include "<a class="el" href="../../d0/dca/ip6_8h_source.html">net/ip6.h</a>"</code><br />
<code>#include "<a class="el" href="../../d4/d19/prot_2ip_8h_source.html">net/prot/ip.h</a>"</code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for ip.h:</div>
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<p><a href="../../da/d2f/ip_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/dc7/structip__globals.html">ip_globals</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/dc3/structip__pcb.html">ip_pcb</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
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Macros</h2></td></tr>
<tr class="memitem:a9135977868017c3deeec86b525e13997"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a9135977868017c3deeec86b525e13997">ip_current_dest_addr</a>()   (&ip_data.current_iphdr_dest)</td></tr>
<tr class="separator:a9135977868017c3deeec86b525e13997"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9135977868017c3deeec86b525e13997"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a9135977868017c3deeec86b525e13997">ip_current_dest_addr</a>()   (&ip_data.current_iphdr_dest)</td></tr>
<tr class="separator:a9135977868017c3deeec86b525e13997"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2ca15ea285a10982294378cd7b8e83e2"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a2ca15ea285a10982294378cd7b8e83e2">ip_current_header_tot_len</a>()   (ip_data.current_ip_header_tot_len)</td></tr>
<tr class="separator:a2ca15ea285a10982294378cd7b8e83e2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae214afa9d3f1b26fc8d538436b8fa3c4"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#ae214afa9d3f1b26fc8d538436b8fa3c4">ip_current_input_netif</a>()   (ip_data.current_input_netif)</td></tr>
<tr class="separator:ae214afa9d3f1b26fc8d538436b8fa3c4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aabecef3c7653a9767c79245c44fcab9f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#aabecef3c7653a9767c79245c44fcab9f">ip_current_netif</a>()   (ip_data.current_netif)</td></tr>
<tr class="separator:aabecef3c7653a9767c79245c44fcab9f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4e35b7692c228c98e738892f0a215647"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a4e35b7692c228c98e738892f0a215647">ip_current_src_addr</a>()   (&ip_data.current_iphdr_src)</td></tr>
<tr class="separator:a4e35b7692c228c98e738892f0a215647"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4e35b7692c228c98e738892f0a215647"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a4e35b7692c228c98e738892f0a215647">ip_current_src_addr</a>()   (&ip_data.current_iphdr_src)</td></tr>
<tr class="separator:a4e35b7692c228c98e738892f0a215647"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a26e077f52de4a97ff89c02415c084518"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a26e077f52de4a97ff89c02415c084518">ip_get_option</a>(pcb, opt)   ((pcb)->so_options & (opt))</td></tr>
<tr class="separator:a26e077f52de4a97ff89c02415c084518"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8bdf4b5f674375e76cdd968826d80e53"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a8bdf4b5f674375e76cdd968826d80e53">IP_PCB</a></td></tr>
<tr class="separator:a8bdf4b5f674375e76cdd968826d80e53"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a19a7497f9c87e25b66382e1b92f56382"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a19a7497f9c87e25b66382e1b92f56382">IP_PCB_ADDRHINT</a></td></tr>
<tr class="separator:a19a7497f9c87e25b66382e1b92f56382"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a441c63f00c4b0cb69fc34ca6b55307cc"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a441c63f00c4b0cb69fc34ca6b55307cc">ip_reset_option</a>(pcb, opt)   ((pcb)->so_options &= ~(opt))</td></tr>
<tr class="separator:a441c63f00c4b0cb69fc34ca6b55307cc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae392fc1ebc42a4b08f73d42c04089be9"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#ae392fc1ebc42a4b08f73d42c04089be9">ip_route_get_local_ip</a>(src, dest, <a class="el" href="../../d2/dd6/structnetif.html">netif</a>, ipaddr)</td></tr>
<tr class="separator:ae392fc1ebc42a4b08f73d42c04089be9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a13f48cf825c7f074dc05bea54e9d6a93"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a13f48cf825c7f074dc05bea54e9d6a93">ip_set_option</a>(pcb, opt)   ((pcb)->so_options |= (opt))</td></tr>
<tr class="separator:a13f48cf825c7f074dc05bea54e9d6a93"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a355679dba1c0d8ef07ce3abcd28e3063"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a355679dba1c0d8ef07ce3abcd28e3063">LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX</a>(p)   <a class="el" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>("p->ref == 1", (p)->ref == 1)</td></tr>
<tr class="separator:a355679dba1c0d8ef07ce3abcd28e3063"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2b7dff1859ced5f2be3fc3da231819d7"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a2b7dff1859ced5f2be3fc3da231819d7">LWIP_IP_HDRINCL</a>   <a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></td></tr>
<tr class="separator:a2b7dff1859ced5f2be3fc3da231819d7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8c7ccdad2d7d3a264bd8cfc57140ca8"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#ac8c7ccdad2d7d3a264bd8cfc57140ca8">SOF_BROADCAST</a>   0x20U /* permit to send and to receive broadcast messages (see <a class="el" href="../../d6/dd7/group__lwip__opts__ipv4.html#ga0b2c993fd940f5774108298933310384">IP_SOF_BROADCAST</a> option) */</td></tr>
<tr class="separator:ac8c7ccdad2d7d3a264bd8cfc57140ca8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae4bbdf8a2e757d758ec0e1c91b58893f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#ae4bbdf8a2e757d758ec0e1c91b58893f">SOF_INHERITED</a>   (<a class="el" href="../../da/d2f/ip_8h.html#aa40b3366a7939ec3a60e9a7d239575e2">SOF_REUSEADDR</a>|<a class="el" href="../../da/d2f/ip_8h.html#a1f7f7efb095c77c06af5c5e8ba558d45">SOF_KEEPALIVE</a>)</td></tr>
<tr class="separator:ae4bbdf8a2e757d758ec0e1c91b58893f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1f7f7efb095c77c06af5c5e8ba558d45"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#a1f7f7efb095c77c06af5c5e8ba558d45">SOF_KEEPALIVE</a>   0x08U /* keep connections alive */</td></tr>
<tr class="separator:a1f7f7efb095c77c06af5c5e8ba558d45"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa40b3366a7939ec3a60e9a7d239575e2"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#aa40b3366a7939ec3a60e9a7d239575e2">SOF_REUSEADDR</a>   0x04U /* allow local address reuse */</td></tr>
<tr class="separator:aa40b3366a7939ec3a60e9a7d239575e2"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
Variables</h2></td></tr>
<tr class="memitem:ac944fb6564f181bc90bc7c2b8b00d94c"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d4/dc7/structip__globals.html">ip_globals</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d2f/ip_8h.html#ac944fb6564f181bc90bc7c2b8b00d94c">ip_data</a></td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>IP API </p>
<p class="definition">Definition in file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a9135977868017c3deeec86b525e13997"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9135977868017c3deeec86b525e13997">◆ </a></span>ip_current_dest_addr <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ip_current_dest_addr</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (&ip_data.current_iphdr_dest)</td>
</tr>
</table>
</div><div class="memdoc">
<p>Destination IP address of current_header</p>
<p>Union destination address of current_header </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00212">212</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
</div>
</div>
<a id="a9135977868017c3deeec86b525e13997"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9135977868017c3deeec86b525e13997">◆ </a></span>ip_current_dest_addr <span class="overload">[2/2]</span></h2>
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<td class="memname">#define ip_current_dest_addr</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (&ip_data.current_iphdr_dest)</td>
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<p>Destination IP address of current_header</p>
<p>Union destination address of current_header </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00212">212</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2ca15ea285a10982294378cd7b8e83e2">◆ </a></span>ip_current_header_tot_len</h2>
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<td class="memname">#define ip_current_header_tot_len</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (ip_data.current_ip_header_tot_len)</td>
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<p>Total header length of ip(6)_current_header() (i.e. after this, the UDP/TCP header starts) </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00139">139</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae214afa9d3f1b26fc8d538436b8fa3c4">◆ </a></span>ip_current_input_netif</h2>
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<td class="memname">#define ip_current_input_netif</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (ip_data.current_input_netif)</td>
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<p>Get the interface that received the current packet. This function must only be called from a receive callback (udp_recv, raw_recv, tcp_accept). It will return NULL otherwise. </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00137">137</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aabecef3c7653a9767c79245c44fcab9f">◆ </a></span>ip_current_netif</h2>
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<td class="memname">#define ip_current_netif</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (ip_data.current_netif)</td>
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<p>Get the interface that accepted the current packet. This may or may not be the receiving netif, depending on your netif/network setup. This function must only be called from a receive callback (udp_recv, raw_recv, tcp_accept). It will return NULL otherwise. </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00133">133</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a4e35b7692c228c98e738892f0a215647"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4e35b7692c228c98e738892f0a215647">◆ </a></span>ip_current_src_addr <span class="overload">[1/2]</span></h2>
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<td class="memname">#define ip_current_src_addr</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (&ip_data.current_iphdr_src)</td>
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<p>Source IP address of current_header</p>
<p>Union source address of current_header </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00210">210</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a4e35b7692c228c98e738892f0a215647"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4e35b7692c228c98e738892f0a215647">◆ </a></span>ip_current_src_addr <span class="overload">[2/2]</span></h2>
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<td class="memname">#define ip_current_src_addr</td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td>   (&ip_data.current_iphdr_src)</td>
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<p>Source IP address of current_header</p>
<p>Union source address of current_header </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00210">210</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a26e077f52de4a97ff89c02415c084518"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a26e077f52de4a97ff89c02415c084518">◆ </a></span>ip_get_option</h2>
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<td class="memname">#define ip_get_option</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">pcb, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">opt </td>
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<td>)</td>
<td></td><td>   ((pcb)->so_options & (opt))</td>
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<p>Gets an IP pcb option (SOF_* flags) </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00215">215</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a8bdf4b5f674375e76cdd968826d80e53"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8bdf4b5f674375e76cdd968826d80e53">◆ </a></span>IP_PCB</h2>
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<td class="memname">#define IP_PCB</td>
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<b>Value:</b><div class="fragment"><div class="line"><span class="comment">/* ip addresses in network byte order */</span> \</div>
<div class="line"> ip_addr_t local_ip; \</div>
<div class="line"> ip_addr_t remote_ip; \</div>
<div class="line"> <span class="comment">/* Socket options */</span> \</div>
<div class="line"> u8_t so_options; \</div>
<div class="line"> <span class="comment">/* Type Of Service */</span> \</div>
<div class="line"> u8_t tos; \</div>
<div class="line"> <span class="comment">/* Time To Live */</span> \</div>
<div class="line"> u8_t ttl \</div>
<div class="line"> <span class="comment">/* link layer address resolution hint */</span> \</div>
<div class="line"> IP_PCB_ADDRHINT</div>
</div><!-- fragment --><p>This is the common part of all PCB types. It needs to be at the beginning of a PCB type definition. It is located here so that changes to this common part are made in one location instead of having to change all PCB structs. </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00076">76</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a19a7497f9c87e25b66382e1b92f56382"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a19a7497f9c87e25b66382e1b92f56382">◆ </a></span>IP_PCB_ADDRHINT</h2>
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<td class="memname">#define IP_PCB_ADDRHINT</td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00069">69</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a441c63f00c4b0cb69fc34ca6b55307cc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a441c63f00c4b0cb69fc34ca6b55307cc">◆ </a></span>ip_reset_option</h2>
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<td class="memname">#define ip_reset_option</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">pcb, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">opt </td>
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<td></td>
<td>)</td>
<td></td><td>   ((pcb)->so_options &= ~(opt))</td>
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<p>Resets an IP pcb option (SOF_* flags) </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00219">219</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae392fc1ebc42a4b08f73d42c04089be9">◆ </a></span>ip_route_get_local_ip</h2>
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<td class="memname">#define ip_route_get_local_ip</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">src, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">dest, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname"><a class="el" href="../../d2/dd6/structnetif.html">netif</a>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">ipaddr </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> { \</div>
<div class="line"> (<a class="code" href="../../d2/dd6/structnetif.html">netif</a>) = ip_route(src, dest); \</div>
<div class="line"> (ipaddr) = ip_netif_get_local_ip(<a class="code" href="../../d2/dd6/structnetif.html">netif</a>, dest); \</div>
<div class="line">}<span class="keywordflow">while</span>(0)</div>
</div><!-- fragment -->
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00308">308</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a13f48cf825c7f074dc05bea54e9d6a93"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a13f48cf825c7f074dc05bea54e9d6a93">◆ </a></span>ip_set_option</h2>
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<td class="memname">#define ip_set_option</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">pcb, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname">opt </td>
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<td></td>
<td>)</td>
<td></td><td>   ((pcb)->so_options |= (opt))</td>
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<p>Sets an IP pcb option (SOF_* flags) </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00217">217</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a355679dba1c0d8ef07ce3abcd28e3063">◆ </a></span>LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX</h2>
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<td class="memname">#define LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX</td>
<td>(</td>
<td class="paramtype"> </td>
<td class="paramname">p</td><td>)</td>
<td>   <a class="el" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>("p->ref == 1", (p)->ref == 1)</td>
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<p>pbufs passed to IP must have a ref-count of 1 as their payload pointer gets altered as the packet is passed down the stack </p>
<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00063">63</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a2b7dff1859ced5f2be3fc3da231819d7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2b7dff1859ced5f2be3fc3da231819d7">◆ </a></span>LWIP_IP_HDRINCL</h2>
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<td class="memname">#define LWIP_IP_HDRINCL   <a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00058">58</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac8c7ccdad2d7d3a264bd8cfc57140ca8">◆ </a></span>SOF_BROADCAST</h2>
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<td class="memname">#define SOF_BROADCAST   0x20U /* permit to send and to receive broadcast messages (see <a class="el" href="../../d6/dd7/group__lwip__opts__ipv4.html#ga0b2c993fd940f5774108298933310384">IP_SOF_BROADCAST</a> option) */</td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00099">99</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae4bbdf8a2e757d758ec0e1c91b58893f">◆ </a></span>SOF_INHERITED</h2>
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<td class="memname">#define SOF_INHERITED   (<a class="el" href="../../da/d2f/ip_8h.html#aa40b3366a7939ec3a60e9a7d239575e2">SOF_REUSEADDR</a>|<a class="el" href="../../da/d2f/ip_8h.html#a1f7f7efb095c77c06af5c5e8ba558d45">SOF_KEEPALIVE</a>)</td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00102">102</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="a1f7f7efb095c77c06af5c5e8ba558d45"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1f7f7efb095c77c06af5c5e8ba558d45">◆ </a></span>SOF_KEEPALIVE</h2>
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<td class="memname">#define SOF_KEEPALIVE   0x08U /* keep connections alive */</td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00098">98</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<a id="aa40b3366a7939ec3a60e9a7d239575e2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa40b3366a7939ec3a60e9a7d239575e2">◆ </a></span>SOF_REUSEADDR</h2>
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<td class="memname">#define SOF_REUSEADDR   0x04U /* allow local address reuse */</td>
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<p class="definition">Definition at line <a class="el" href="../../da/d2f/ip_8h_source.html#l00097">97</a> of file <a class="el" href="../../da/d2f/ip_8h_source.html">ip.h</a>.</p>
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<h2 class="groupheader">Variable Documentation</h2>
<a id="ac944fb6564f181bc90bc7c2b8b00d94c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac944fb6564f181bc90bc7c2b8b00d94c">◆ </a></span>ip_data</h2>
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<td class="memname">struct <a class="el" href="../../d4/dc7/structip__globals.html">ip_globals</a> ip_data</td>
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<div class="ttc" id="astructnetif_html"><div class="ttname"><a href="../../d2/dd6/structnetif.html">netif</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d69/netif_8h_source.html#l00233">netif.h:233</a></div></div>
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