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<h1>lib/route/sch/htb.c</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * lib/route/sch/htb.c HTB Qdisc</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span>
<a name="l00006"></a>00006 <span class="comment"> * License as published by the Free Software Foundation version 2.1</span>
<a name="l00007"></a>00007 <span class="comment"> * of the License.</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch></span>
<a name="l00010"></a>00010 <span class="comment"> * Copyright (c) 2005-2006 Petr Gotthard <petr.gotthard@siemens.com></span>
<a name="l00011"></a>00011 <span class="comment"> * Copyright (c) 2005-2006 Siemens AG Oesterreich</span>
<a name="l00012"></a>00012 <span class="comment"> */</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">/**</span>
<a name="l00015"></a>00015 <span class="comment"> * @ingroup qdisc_api</span>
<a name="l00016"></a>00016 <span class="comment"> * @ingroup class_api</span>
<a name="l00017"></a>00017 <span class="comment"> * @defgroup htb Hierachical Token Bucket (HTB)</span>
<a name="l00018"></a>00018 <span class="comment"> * @{</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="preprocessor">#include <netlink-local.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <netlink-tc.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <netlink/netlink.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <netlink/cache.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <netlink/utils.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <netlink/route/tc.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <netlink/route/qdisc.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <netlink/route/qdisc-modules.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <netlink/route/class.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <netlink/route/class-modules.h></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <netlink/route/link.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <netlink/route/sch/htb.h></span>
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment">/** @cond SKIP */</span>
<a name="l00035"></a>00035 <span class="preprocessor">#define SCH_HTB_HAS_RATE2QUANTUM 0x01</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_DEFCLS 0x02</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span>
<a name="l00038"></a>00038 <span class="preprocessor">#define SCH_HTB_HAS_PRIO 0x001</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_MTU 0x002</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_RATE 0x004</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_CEIL 0x008</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_RBUFFER 0x010</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_CBUFFER 0x020</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_QUANTUM 0x040</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_OVERHEAD 0x080</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span><span class="preprocessor">#define SCH_HTB_HAS_MPU 0x100</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="comment">/** @endcond */</span>
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">struct </span>rtnl_htb_qdisc *htb_qdisc(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="keywordflow">if</span> (qdisc->q_subdata == NULL)
<a name="l00052"></a>00052 qdisc->q_subdata = calloc(1, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> rtnl_htb_qdisc));
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="keywordflow">return</span> (<span class="keyword">struct</span> rtnl_htb_qdisc *) qdisc->q_subdata;
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnla__policy.html" title="attribute validation policy">nla_policy</a> htb_policy[TCA_HTB_MAX+1] = {
<a name="l00058"></a>00058 [TCA_HTB_INIT] = { .<a class="code" href="structnla__policy.html#a70310d3332cb82c390754bd70b1cb7dd" title="Minimal length of payload required to be available.">minlen</a> = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>tc_htb_glob) },
<a name="l00059"></a>00059 [TCA_HTB_PARMS] = { .minlen = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>tc_htb_opt) },
<a name="l00060"></a>00060 };
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keyword">static</span> <span class="keywordtype">int</span> htb_qdisc_msg_parser(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="keywordtype">int</span> err;
<a name="l00065"></a>00065 <span class="keyword">struct </span>nlattr *tb[TCA_HTB_MAX + 1];
<a name="l00066"></a>00066 <span class="keyword">struct </span>rtnl_htb_qdisc *d;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 err = tca_parse(tb, TCA_HTB_MAX, (<span class="keyword">struct</span> rtnl_tca *) qdisc, htb_policy);
<a name="l00069"></a>00069 <span class="keywordflow">if</span> (err < 0)
<a name="l00070"></a>00070 <span class="keywordflow">return</span> err;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 d = htb_qdisc(qdisc);
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="keywordflow">if</span> (tb[TCA_HTB_INIT]) {
<a name="l00075"></a>00075 <span class="keyword">struct </span>tc_htb_glob opts;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <a class="code" href="group__attr.html#gaf2cdaf473a1054b9c3fc735ca7275403" title="Copy a netlink attribute into another memory area.">nla_memcpy</a>(&opts, tb[TCA_HTB_INIT], <span class="keyword">sizeof</span>(opts));
<a name="l00078"></a>00078 d->qh_rate2quantum = opts.rate2quantum;
<a name="l00079"></a>00079 d->qh_defcls = opts.defcls;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 d->qh_mask = (SCH_HTB_HAS_RATE2QUANTUM | SCH_HTB_HAS_DEFCLS);
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">return</span> 0;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keyword">static</span> <span class="keywordtype">void</span> htb_qdisc_free_data(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00088"></a>00088 {
<a name="l00089"></a>00089 free(qdisc->q_subdata);
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">struct </span>rtnl_htb_class *htb_class(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (class->c_subdata == NULL)
<a name="l00095"></a>00095 <span class="keyword">class</span>->c_subdata = calloc(1, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> rtnl_htb_class));
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">return</span> (<span class="keyword">struct</span> rtnl_htb_class *) <span class="keyword">class</span>->c_subdata;
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keyword">static</span> <span class="keywordtype">int</span> htb_class_msg_parser(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="keywordtype">int</span> err;
<a name="l00103"></a>00103 <span class="keyword">struct </span>nlattr *tb[TCA_HTB_MAX + 1];
<a name="l00104"></a>00104 <span class="keyword">struct </span>rtnl_htb_class *d;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 err = tca_parse(tb, TCA_HTB_MAX, (<span class="keyword">struct</span> rtnl_tca *) <span class="keyword">class</span>, htb_policy);
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (err < 0)
<a name="l00108"></a>00108 <span class="keywordflow">return</span> err;
<a name="l00109"></a>00109
<a name="l00110"></a>00110 d = htb_class(<span class="keyword">class</span>);
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (tb[TCA_HTB_PARMS]) {
<a name="l00113"></a>00113 <span class="keyword">struct </span>tc_htb_opt opts;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <a class="code" href="group__attr.html#gaf2cdaf473a1054b9c3fc735ca7275403" title="Copy a netlink attribute into another memory area.">nla_memcpy</a>(&opts, tb[TCA_HTB_PARMS], <span class="keyword">sizeof</span>(opts));
<a name="l00116"></a>00116 d->ch_prio = opts.prio;
<a name="l00117"></a>00117 rtnl_copy_ratespec(&d->ch_rate, &opts.rate);
<a name="l00118"></a>00118 rtnl_copy_ratespec(&d->ch_ceil, &opts.ceil);
<a name="l00119"></a>00119 d->ch_rbuffer = <a class="code" href="group__tc.html#ga460b3c9b69f0bffd46347b1e2d4497e5" title="Calculate buffer size able to transmit in a specific time and rate.">rtnl_tc_calc_bufsize</a>(opts.buffer, opts.rate.rate);
<a name="l00120"></a>00120 d->ch_cbuffer = <a class="code" href="group__tc.html#ga460b3c9b69f0bffd46347b1e2d4497e5" title="Calculate buffer size able to transmit in a specific time and rate.">rtnl_tc_calc_bufsize</a>(opts.cbuffer, opts.ceil.rate);
<a name="l00121"></a>00121 d->ch_quantum = opts.quantum;
<a name="l00122"></a>00122 d->ch_overhead = (opts.rate.mpu >> 8) & 0xff;
<a name="l00123"></a>00123 d->ch_mpu = opts.rate.mpu & 0xff;
<a name="l00124"></a>00124
<a name="l00125"></a>00125 d->ch_mask = (SCH_HTB_HAS_PRIO | SCH_HTB_HAS_RATE |
<a name="l00126"></a>00126 SCH_HTB_HAS_CEIL | SCH_HTB_HAS_RBUFFER |
<a name="l00127"></a>00127 SCH_HTB_HAS_CBUFFER | SCH_HTB_HAS_QUANTUM |
<a name="l00128"></a>00128 SCH_HTB_HAS_OVERHEAD | SCH_HTB_HAS_MPU);
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keywordflow">return</span> 0;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keyword">static</span> <span class="keywordtype">void</span> htb_class_free_data(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>)
<a name="l00135"></a>00135 {
<a name="l00136"></a>00136 free(class->c_subdata);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keyword">static</span> <span class="keywordtype">int</span> htb_qdisc_dump_brief(<span class="keyword">struct</span> rtnl_qdisc *qdisc,
<a name="l00140"></a>00140 <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">int</span> line)
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 <span class="keyword">struct </span>rtnl_htb_qdisc *d = (<span class="keyword">struct </span>rtnl_htb_qdisc *) qdisc->q_subdata;
<a name="l00143"></a>00143
<a name="l00144"></a>00144 if (d == NULL)
<a name="l00145"></a>00145 <span class="keywordflow">goto</span> ignore;
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="keywordflow">if</span> (d->qh_mask & SCH_HTB_HAS_RATE2QUANTUM)
<a name="l00148"></a>00148 dp_dump(p, <span class="stringliteral">" r2q %u"</span>, d->qh_rate2quantum);
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="keywordflow">if</span> (d->qh_mask & SCH_HTB_HAS_DEFCLS) {
<a name="l00151"></a>00151 <span class="keywordtype">char</span> buf[32];
<a name="l00152"></a>00152 dp_dump(p, <span class="stringliteral">" default %s"</span>,
<a name="l00153"></a>00153 <a class="code" href="group__tc.html#ga27fad2a239d4d8d932da0ce1bdbf1f9f" title="Convert a traffic control handle to a character string (Reentrant).">rtnl_tc_handle2str</a>(d->qh_defcls, buf, <span class="keyword">sizeof</span>(buf)));
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 ignore:
<a name="l00157"></a>00157 <span class="keywordflow">return</span> line;
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="keyword">static</span> <span class="keywordtype">int</span> htb_class_dump_brief(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>,
<a name="l00161"></a>00161 <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">int</span> line)
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 <span class="keyword">struct </span>rtnl_htb_class *d = (<span class="keyword">struct </span>rtnl_htb_class *) class->c_subdata;
<a name="l00164"></a>00164
<a name="l00165"></a>00165 if (d == NULL)
<a name="l00166"></a>00166 <span class="keywordflow">goto</span> ignore;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_RATE) {
<a name="l00169"></a>00169 <span class="keywordtype">double</span> r, rbit;
<a name="l00170"></a>00170 <span class="keywordtype">char</span> *ru, *rubit;
<a name="l00171"></a>00171
<a name="l00172"></a>00172 r = <a class="code" href="group__utils.html#ga5a280448ae9e17ff5dc7e822b9f47b11" title="Cancel down a byte counter.">nl_cancel_down_bytes</a>(d->ch_rate.rs_rate, &ru);
<a name="l00173"></a>00173 rbit = <a class="code" href="group__utils.html#ga195db70bc2c97b1eb6f40c2d60a6f823" title="Cancel down a bit counter.">nl_cancel_down_bits</a>(d->ch_rate.rs_rate*8, &rubit);
<a name="l00174"></a>00174
<a name="l00175"></a>00175 dp_dump(p, <span class="stringliteral">" rate %.2f%s/s (%.0f%s) log %u"</span>,
<a name="l00176"></a>00176 r, ru, rbit, rubit, 1<<d->ch_rate.rs_cell_log);
<a name="l00177"></a>00177 }
<a name="l00178"></a>00178
<a name="l00179"></a>00179 ignore:
<a name="l00180"></a>00180 <span class="keywordflow">return</span> line;
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keyword">static</span> <span class="keywordtype">int</span> htb_class_dump_full(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>,
<a name="l00184"></a>00184 <span class="keyword">struct</span> <a class="code" href="structnl__dump__params.html" title="Dumping parameters.">nl_dump_params</a> *p, <span class="keywordtype">int</span> line)
<a name="l00185"></a>00185 {
<a name="l00186"></a>00186 <span class="keyword">struct </span>rtnl_htb_class *d = (<span class="keyword">struct </span>rtnl_htb_class *) class->c_subdata;
<a name="l00187"></a>00187
<a name="l00188"></a>00188 if (d == NULL)
<a name="l00189"></a>00189 <span class="keywordflow">goto</span> ignore;
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="comment">/* line 1 */</span>
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_CEIL) {
<a name="l00193"></a>00193 <span class="keywordtype">double</span> r, rbit;
<a name="l00194"></a>00194 <span class="keywordtype">char</span> *ru, *rubit;
<a name="l00195"></a>00195
<a name="l00196"></a>00196 r = <a class="code" href="group__utils.html#ga5a280448ae9e17ff5dc7e822b9f47b11" title="Cancel down a byte counter.">nl_cancel_down_bytes</a>(d->ch_ceil.rs_rate, &ru);
<a name="l00197"></a>00197 rbit = <a class="code" href="group__utils.html#ga195db70bc2c97b1eb6f40c2d60a6f823" title="Cancel down a bit counter.">nl_cancel_down_bits</a>(d->ch_ceil.rs_rate*8, &rubit);
<a name="l00198"></a>00198
<a name="l00199"></a>00199 dp_dump(p, <span class="stringliteral">" ceil %.2f%s/s (%.0f%s) log %u"</span>,
<a name="l00200"></a>00200 r, ru, rbit, rubit, 1<<d->ch_ceil.rs_cell_log);
<a name="l00201"></a>00201 }
<a name="l00202"></a>00202
<a name="l00203"></a>00203 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_PRIO)
<a name="l00204"></a>00204 dp_dump(p, <span class="stringliteral">" prio %u"</span>, d->ch_prio);
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_MTU)
<a name="l00207"></a>00207 dp_dump(p, <span class="stringliteral">" mtu %u"</span>, d->ch_mtu);
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_RBUFFER) {
<a name="l00210"></a>00210 <span class="keywordtype">double</span> b;
<a name="l00211"></a>00211 <span class="keywordtype">char</span> *bu;
<a name="l00212"></a>00212
<a name="l00213"></a>00213 b = <a class="code" href="group__utils.html#ga5a280448ae9e17ff5dc7e822b9f47b11" title="Cancel down a byte counter.">nl_cancel_down_bytes</a>(d->ch_rbuffer, &bu);
<a name="l00214"></a>00214 dp_dump(p, <span class="stringliteral">" rbuffer %.2f%s"</span>, b, bu);
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_CBUFFER) {
<a name="l00218"></a>00218 <span class="keywordtype">double</span> b;
<a name="l00219"></a>00219 <span class="keywordtype">char</span> *bu;
<a name="l00220"></a>00220
<a name="l00221"></a>00221 b = <a class="code" href="group__utils.html#ga5a280448ae9e17ff5dc7e822b9f47b11" title="Cancel down a byte counter.">nl_cancel_down_bytes</a>(d->ch_cbuffer, &bu);
<a name="l00222"></a>00222 dp_dump(p, <span class="stringliteral">" cbuffer %.2f%s"</span>, b, bu);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_QUANTUM)
<a name="l00226"></a>00226 dp_dump(p, <span class="stringliteral">" quantum %u"</span>, d->ch_quantum);
<a name="l00227"></a>00227
<a name="l00228"></a>00228 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_OVERHEAD)
<a name="l00229"></a>00229 dp_dump(p, <span class="stringliteral">" overhead %u"</span>, d->ch_overhead);
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_MPU)
<a name="l00232"></a>00232 dp_dump(p, <span class="stringliteral">" mpu %u"</span>, d->ch_mpu);
<a name="l00233"></a>00233
<a name="l00234"></a>00234 ignore:
<a name="l00235"></a>00235 <span class="keywordflow">return</span> line;
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg *htb_qdisc_get_opts(<span class="keyword">struct</span> rtnl_qdisc *qdisc)
<a name="l00239"></a>00239 {
<a name="l00240"></a>00240 <span class="keyword">struct </span>rtnl_htb_qdisc *d = (<span class="keyword">struct </span>rtnl_htb_qdisc *) qdisc->q_subdata;
<a name="l00241"></a>00241 <span class="keyword">struct</span> tc_htb_glob opts;
<a name="l00242"></a>00242 <span class="keyword">struct</span> nl_msg *msg;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 if (d == NULL)
<a name="l00245"></a>00245 <span class="keywordflow">return</span> NULL;
<a name="l00246"></a>00246
<a name="l00247"></a>00247 msg = <a class="code" href="group__msg.html#ga89c936bdf5e73455bb1640a0eb8a020d" title="Allocate a new netlink message with the default maximum payload size.">nlmsg_alloc</a>();
<a name="l00248"></a>00248 <span class="keywordflow">if</span> (msg == NULL)
<a name="l00249"></a>00249 <span class="keywordflow">return</span> NULL;
<a name="l00250"></a>00250
<a name="l00251"></a>00251 memset(&opts, 0, <span class="keyword">sizeof</span>(opts));
<a name="l00252"></a>00252 opts.version = TC_HTB_PROTOVER;
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (d->qh_mask & SCH_HTB_HAS_RATE2QUANTUM)
<a name="l00255"></a>00255 opts.rate2quantum = d->qh_rate2quantum;
<a name="l00256"></a>00256 <span class="keywordflow">if</span> (d->qh_mask & SCH_HTB_HAS_DEFCLS)
<a name="l00257"></a>00257 opts.defcls = d->qh_defcls;
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, TCA_HTB_INIT, <span class="keyword">sizeof</span>(opts), &opts);
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="keywordflow">return</span> msg;
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keyword">static</span> uint8_t compute_cell(uint32_t rate, uint32_t mtu)
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 uint8_t cell_log = 0;
<a name="l00267"></a>00267 <span class="keywordflow">while</span> (mtu > 255) {
<a name="l00268"></a>00268 mtu >>= 1;
<a name="l00269"></a>00269 cell_log++;
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">return</span> cell_log;
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg *htb_class_get_opts(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>)
<a name="l00276"></a>00276 {
<a name="l00277"></a>00277 <span class="keyword">struct </span>rtnl_htb_class *d = (<span class="keyword">struct </span>rtnl_htb_class *) class->c_subdata;
<a name="l00278"></a>00278 uint32_t mtu, rtable[<a class="code" href="group__tc.html#ga9a0796847debb07d96fe745d9088a6b5" title="Number of entries in a transmission time lookup table.">RTNL_TC_RTABLE_SIZE</a>], ctable[RTNL_TC_RTABLE_SIZE];
<a name="l00279"></a>00279 <span class="keyword">struct</span> tc_htb_opt opts;
<a name="l00280"></a>00280 <span class="keyword">struct</span> nl_msg *msg;
<a name="l00281"></a>00281 <span class="keywordtype">int</span> buffer, cbuffer;
<a name="l00282"></a>00282 uint8_t overhead = 0, mpu = 0;
<a name="l00283"></a>00283
<a name="l00284"></a>00284 if (d == NULL)
<a name="l00285"></a>00285 <span class="keywordflow">return</span> NULL;
<a name="l00286"></a>00286
<a name="l00287"></a>00287 msg = <a class="code" href="group__msg.html#ga89c936bdf5e73455bb1640a0eb8a020d" title="Allocate a new netlink message with the default maximum payload size.">nlmsg_alloc</a>();
<a name="l00288"></a>00288 memset(&opts, 0, <span class="keyword">sizeof</span>(opts));
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="comment">/* if not set, zero (0) is used as priority */</span>
<a name="l00291"></a>00291 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_PRIO)
<a name="l00292"></a>00292 opts.prio = d->ch_prio;
<a name="l00293"></a>00293
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_MTU)
<a name="l00295"></a>00295 mtu = d->ch_mtu;
<a name="l00296"></a>00296 <span class="keywordflow">else</span>
<a name="l00297"></a>00297 mtu = 1600; <span class="comment">/* eth packet len */</span>
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (!(d->ch_mask & SCH_HTB_HAS_RATE))
<a name="l00300"></a>00300 BUG();
<a name="l00301"></a>00301
<a name="l00302"></a>00302 rtnl_rcopy_ratespec(&opts.rate, &d->ch_rate);
<a name="l00303"></a>00303 <span class="comment">/* if cell_log not set, compute default value */</span>
<a name="l00304"></a>00304 <span class="keywordflow">if</span> (opts.rate.cell_log == UINT8_MAX)
<a name="l00305"></a>00305 opts.rate.cell_log = compute_cell(opts.rate.rate, mtu);
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <span class="comment">/* if not set, configured rate is used as ceil, which implies no borrowing */</span>
<a name="l00308"></a>00308 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_CEIL)
<a name="l00309"></a>00309 rtnl_rcopy_ratespec(&opts.ceil, &d->ch_ceil);
<a name="l00310"></a>00310 <span class="keywordflow">else</span>
<a name="l00311"></a>00311 memcpy(&opts.ceil, &opts.rate, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> tc_ratespec));
<a name="l00312"></a>00312 <span class="comment">/* if cell_log not set, compute default value */</span>
<a name="l00313"></a>00313 <span class="keywordflow">if</span> (opts.ceil.cell_log == UINT8_MAX)
<a name="l00314"></a>00314 opts.ceil.cell_log = compute_cell(opts.ceil.rate, mtu);
<a name="l00315"></a>00315
<a name="l00316"></a>00316 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_RBUFFER)
<a name="l00317"></a>00317 buffer = d->ch_rbuffer;
<a name="l00318"></a>00318 <span class="keywordflow">else</span>
<a name="l00319"></a>00319 buffer = opts.rate.rate / <a class="code" href="group__utils.html#ga9aa52772ddedc62e60f5ecfc9a66ea89" title="Return the value of HZ.">nl_get_hz</a>() + mtu;
<a name="l00320"></a>00320
<a name="l00321"></a>00321 opts.buffer = <a class="code" href="group__tc.html#gaf3dc48257284437d340d8493b33b9b98" title="Calculate time required to transmit buffer at a specific rate.">rtnl_tc_calc_txtime</a>(buffer, opts.rate.rate);
<a name="l00322"></a>00322
<a name="l00323"></a>00323 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_CBUFFER)
<a name="l00324"></a>00324 cbuffer = d->ch_cbuffer;
<a name="l00325"></a>00325 <span class="keywordflow">else</span>
<a name="l00326"></a>00326 cbuffer = opts.ceil.rate / <a class="code" href="group__utils.html#ga9aa52772ddedc62e60f5ecfc9a66ea89" title="Return the value of HZ.">nl_get_hz</a>() + mtu;
<a name="l00327"></a>00327
<a name="l00328"></a>00328 opts.cbuffer = <a class="code" href="group__tc.html#gaf3dc48257284437d340d8493b33b9b98" title="Calculate time required to transmit buffer at a specific rate.">rtnl_tc_calc_txtime</a>(cbuffer, opts.ceil.rate);
<a name="l00329"></a>00329
<a name="l00330"></a>00330 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_QUANTUM)
<a name="l00331"></a>00331 opts.quantum = d->ch_quantum;
<a name="l00332"></a>00332
<a name="l00333"></a>00333 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_OVERHEAD)
<a name="l00334"></a>00334 overhead = d->ch_overhead;
<a name="l00335"></a>00335
<a name="l00336"></a>00336 <span class="keywordflow">if</span> (d->ch_mask & SCH_HTB_HAS_MPU)
<a name="l00337"></a>00337 mpu = d->ch_mpu;
<a name="l00338"></a>00338
<a name="l00339"></a>00339 opts.rate.mpu = mpu | (overhead << 8);
<a name="l00340"></a>00340 opts.ceil.mpu = mpu | (overhead << 8);
<a name="l00341"></a>00341
<a name="l00342"></a>00342 <a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, TCA_HTB_PARMS, <span class="keyword">sizeof</span>(opts), &opts);
<a name="l00343"></a>00343
<a name="l00344"></a>00344 <a class="code" href="group__tc.html#gaf0985ec685f9def7fcaba8cb831c4f2c" title="Compute a transmission time lookup table.">rtnl_tc_build_rate_table</a>(rtable, mpu, overhead,
<a name="l00345"></a>00345 1 << opts.rate.cell_log,
<a name="l00346"></a>00346 opts.rate.rate);
<a name="l00347"></a>00347 <a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, TCA_HTB_RTAB, <span class="keyword">sizeof</span>(rtable), &rtable);
<a name="l00348"></a>00348
<a name="l00349"></a>00349 <a class="code" href="group__tc.html#gaf0985ec685f9def7fcaba8cb831c4f2c" title="Compute a transmission time lookup table.">rtnl_tc_build_rate_table</a>(ctable, mpu, overhead,
<a name="l00350"></a>00350 1 << opts.ceil.cell_log,
<a name="l00351"></a>00351 opts.ceil.rate);
<a name="l00352"></a>00352 <a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, TCA_HTB_CTAB, <span class="keyword">sizeof</span>(ctable), &ctable);
<a name="l00353"></a>00353
<a name="l00354"></a>00354 <span class="keywordflow">return</span> msg;
<a name="l00355"></a>00355 }
<a name="l00356"></a>00356 <span class="comment"></span>
<a name="l00357"></a>00357 <span class="comment">/**</span>
<a name="l00358"></a>00358 <span class="comment"> * @name Attribute Modifications</span>
<a name="l00359"></a>00359 <span class="comment"> * @{</span>
<a name="l00360"></a>00360 <span class="comment"> */</span>
<a name="l00361"></a>00361
<a name="l00362"></a>00362 <span class="keywordtype">void</span> rtnl_htb_set_rate2quantum(<span class="keyword">struct</span> rtnl_qdisc *qdisc, uint32_t rate2quantum)
<a name="l00363"></a>00363 {
<a name="l00364"></a>00364 <span class="keyword">struct </span>rtnl_htb_qdisc *d = htb_qdisc(qdisc);
<a name="l00365"></a>00365 <span class="keywordflow">if</span> (d == NULL)
<a name="l00366"></a>00366 <span class="keywordflow">return</span>;
<a name="l00367"></a>00367
<a name="l00368"></a>00368 d->qh_rate2quantum = rate2quantum;
<a name="l00369"></a>00369 d->qh_mask |= SCH_HTB_HAS_RATE2QUANTUM;
<a name="l00370"></a>00370 }
<a name="l00371"></a>00371 <span class="comment"></span>
<a name="l00372"></a>00372 <span class="comment">/**</span>
<a name="l00373"></a>00373 <span class="comment"> * Set default class of the htb qdisc to the specified value</span>
<a name="l00374"></a>00374 <span class="comment"> * @arg qdisc qdisc to change</span>
<a name="l00375"></a>00375 <span class="comment"> * @arg defcls new default class</span>
<a name="l00376"></a>00376 <span class="comment"> */</span>
<a name="l00377"></a><a class="code" href="group__htb.html#gaf0cdca21169f1991bad47c9769befe03">00377</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#gaf0cdca21169f1991bad47c9769befe03" title="Set default class of the htb qdisc to the specified value.">rtnl_htb_set_defcls</a>(<span class="keyword">struct</span> rtnl_qdisc *qdisc, uint32_t defcls)
<a name="l00378"></a>00378 {
<a name="l00379"></a>00379 <span class="keyword">struct </span>rtnl_htb_qdisc *d = htb_qdisc(qdisc);
<a name="l00380"></a>00380 <span class="keywordflow">if</span> (d == NULL)
<a name="l00381"></a>00381 <span class="keywordflow">return</span>;
<a name="l00382"></a>00382
<a name="l00383"></a>00383 d->qh_defcls = defcls;
<a name="l00384"></a>00384 d->qh_mask |= SCH_HTB_HAS_DEFCLS;
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <span class="keywordtype">void</span> rtnl_htb_set_prio(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t prio)
<a name="l00388"></a>00388 {
<a name="l00389"></a>00389 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00390"></a>00390 <span class="keywordflow">if</span> (d == NULL)
<a name="l00391"></a>00391 <span class="keywordflow">return</span>;
<a name="l00392"></a>00392
<a name="l00393"></a>00393 d->ch_prio = prio;
<a name="l00394"></a>00394 d->ch_mask |= SCH_HTB_HAS_PRIO;
<a name="l00395"></a>00395 }
<a name="l00396"></a>00396 <span class="comment"></span>
<a name="l00397"></a>00397 <span class="comment">/**</span>
<a name="l00398"></a>00398 <span class="comment"> * Set MTU of the data link.</span>
<a name="l00399"></a>00399 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00400"></a>00400 <span class="comment"> * @arg mtu New MTU in bytes.</span>
<a name="l00401"></a>00401 <span class="comment"> *</span>
<a name="l00402"></a>00402 <span class="comment"> * Sets MTU of the data link controlled by the HTB class.</span>
<a name="l00403"></a>00403 <span class="comment"> * If not set, the Ethernet MTU (1600) is used.</span>
<a name="l00404"></a>00404 <span class="comment"> */</span>
<a name="l00405"></a><a class="code" href="group__htb.html#ga7d14226b20de776d11f3dcce18baed9e">00405</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga7d14226b20de776d11f3dcce18baed9e" title="Set MTU of the data link.">rtnl_htb_set_mtu</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t mtu)
<a name="l00406"></a>00406 {
<a name="l00407"></a>00407 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00408"></a>00408 <span class="keywordflow">if</span> (d == NULL)
<a name="l00409"></a>00409 <span class="keywordflow">return</span>;
<a name="l00410"></a>00410
<a name="l00411"></a>00411 d->ch_mtu = mtu;
<a name="l00412"></a>00412 d->ch_mask |= SCH_HTB_HAS_MTU;
<a name="l00413"></a>00413 }
<a name="l00414"></a>00414 <span class="comment"></span>
<a name="l00415"></a>00415 <span class="comment">/**</span>
<a name="l00416"></a>00416 <span class="comment"> * Set rate of HTB class.</span>
<a name="l00417"></a>00417 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00418"></a>00418 <span class="comment"> * @arg rate New rate in bytes per second.</span>
<a name="l00419"></a>00419 <span class="comment"> */</span>
<a name="l00420"></a><a class="code" href="group__htb.html#ga1e874d42de668acd322b3f2f911b0e43">00420</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga1e874d42de668acd322b3f2f911b0e43" title="Set rate of HTB class.">rtnl_htb_set_rate</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t rate)
<a name="l00421"></a>00421 {
<a name="l00422"></a>00422 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00423"></a>00423 <span class="keywordflow">if</span> (d == NULL)
<a name="l00424"></a>00424 <span class="keywordflow">return</span>;
<a name="l00425"></a>00425
<a name="l00426"></a>00426 d->ch_rate.rs_cell_log = UINT8_MAX; <span class="comment">/* use default value */</span>
<a name="l00427"></a>00427 d->ch_rate.rs_rate = rate;
<a name="l00428"></a>00428 d->ch_mask |= SCH_HTB_HAS_RATE;
<a name="l00429"></a>00429 }
<a name="l00430"></a>00430 <span class="comment"></span>
<a name="l00431"></a>00431 <span class="comment">/**</span>
<a name="l00432"></a>00432 <span class="comment"> * Set ceil of HTB class.</span>
<a name="l00433"></a>00433 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00434"></a>00434 <span class="comment"> * @arg ceil New ceil in bytes per second.</span>
<a name="l00435"></a>00435 <span class="comment"> */</span>
<a name="l00436"></a><a class="code" href="group__htb.html#gabdaa4646affdfa86f64f5367ebca65a6">00436</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#gabdaa4646affdfa86f64f5367ebca65a6" title="Set ceil of HTB class.">rtnl_htb_set_ceil</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t ceil)
<a name="l00437"></a>00437 {
<a name="l00438"></a>00438 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00439"></a>00439 <span class="keywordflow">if</span> (d == NULL)
<a name="l00440"></a>00440 <span class="keywordflow">return</span>;
<a name="l00441"></a>00441
<a name="l00442"></a>00442 d->ch_ceil.rs_cell_log = UINT8_MAX; <span class="comment">/* use default value */</span>
<a name="l00443"></a>00443 d->ch_ceil.rs_rate = ceil;
<a name="l00444"></a>00444 d->ch_mask |= SCH_HTB_HAS_CEIL;
<a name="l00445"></a>00445 }
<a name="l00446"></a>00446 <span class="comment"></span>
<a name="l00447"></a>00447 <span class="comment">/**</span>
<a name="l00448"></a>00448 <span class="comment"> * Set size of the rate bucket of HTB class.</span>
<a name="l00449"></a>00449 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00450"></a>00450 <span class="comment"> * @arg rbuffer New size in bytes.</span>
<a name="l00451"></a>00451 <span class="comment"> */</span>
<a name="l00452"></a><a class="code" href="group__htb.html#ga6b65939906ed029b8db53c11dd63d40c">00452</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga6b65939906ed029b8db53c11dd63d40c" title="Set size of the rate bucket of HTB class.">rtnl_htb_set_rbuffer</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t rbuffer)
<a name="l00453"></a>00453 {
<a name="l00454"></a>00454 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00455"></a>00455 <span class="keywordflow">if</span> (d == NULL)
<a name="l00456"></a>00456 <span class="keywordflow">return</span>;
<a name="l00457"></a>00457
<a name="l00458"></a>00458 d->ch_rbuffer = rbuffer;
<a name="l00459"></a>00459 d->ch_mask |= SCH_HTB_HAS_RBUFFER;
<a name="l00460"></a>00460 }
<a name="l00461"></a>00461 <span class="comment"></span>
<a name="l00462"></a>00462 <span class="comment">/**</span>
<a name="l00463"></a>00463 <span class="comment"> * Set size of the ceil bucket of HTB class.</span>
<a name="l00464"></a>00464 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00465"></a>00465 <span class="comment"> * @arg cbuffer New size in bytes.</span>
<a name="l00466"></a>00466 <span class="comment"> */</span>
<a name="l00467"></a><a class="code" href="group__htb.html#ga5d09a846dc0795860355d9e0c7ae41f7">00467</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga5d09a846dc0795860355d9e0c7ae41f7" title="Set size of the ceil bucket of HTB class.">rtnl_htb_set_cbuffer</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t cbuffer)
<a name="l00468"></a>00468 {
<a name="l00469"></a>00469 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00470"></a>00470 <span class="keywordflow">if</span> (d == NULL)
<a name="l00471"></a>00471 <span class="keywordflow">return</span>;
<a name="l00472"></a>00472
<a name="l00473"></a>00473 d->ch_cbuffer = cbuffer;
<a name="l00474"></a>00474 d->ch_mask |= SCH_HTB_HAS_CBUFFER;
<a name="l00475"></a>00475 }
<a name="l00476"></a>00476 <span class="comment"></span>
<a name="l00477"></a>00477 <span class="comment">/**</span>
<a name="l00478"></a>00478 <span class="comment"> * Set how much bytes to serve from leaf at once of HTB class {use r2q}.</span>
<a name="l00479"></a>00479 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00480"></a>00480 <span class="comment"> * @arg quantum New size in bytes.</span>
<a name="l00481"></a>00481 <span class="comment"> */</span>
<a name="l00482"></a><a class="code" href="group__htb.html#ga12c4a8134893071e1a2dcfb895865d63">00482</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga12c4a8134893071e1a2dcfb895865d63" title="Set how much bytes to serve from leaf at once of HTB class {use r2q}.">rtnl_htb_set_quantum</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint32_t quantum)
<a name="l00483"></a>00483 {
<a name="l00484"></a>00484 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00485"></a>00485 <span class="keywordflow">if</span> (d == NULL)
<a name="l00486"></a>00486 <span class="keywordflow">return</span>;
<a name="l00487"></a>00487
<a name="l00488"></a>00488 d->ch_quantum = quantum;
<a name="l00489"></a>00489 d->ch_mask |= SCH_HTB_HAS_QUANTUM;
<a name="l00490"></a>00490 }
<a name="l00491"></a>00491 <span class="comment"></span>
<a name="l00492"></a>00492 <span class="comment">/**</span>
<a name="l00493"></a>00493 <span class="comment"> * Set per-packet size overhead used in rate computations of HTB class.</span>
<a name="l00494"></a>00494 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00495"></a>00495 <span class="comment"> * @arg overhead Size in bytes.</span>
<a name="l00496"></a>00496 <span class="comment"> */</span>
<a name="l00497"></a><a class="code" href="group__htb.html#ga5d60a7d65134e214a8ec7146073f2107">00497</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga5d60a7d65134e214a8ec7146073f2107" title="Set per-packet size overhead used in rate computations of HTB class.">rtnl_htb_set_overhead</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint8_t overhead)
<a name="l00498"></a>00498 {
<a name="l00499"></a>00499 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00500"></a>00500 <span class="keywordflow">if</span> (d == NULL)
<a name="l00501"></a>00501 <span class="keywordflow">return</span>;
<a name="l00502"></a>00502
<a name="l00503"></a>00503 d->ch_overhead = overhead;
<a name="l00504"></a>00504 d->ch_mask |= SCH_HTB_HAS_OVERHEAD;
<a name="l00505"></a>00505 }
<a name="l00506"></a>00506 <span class="comment"></span>
<a name="l00507"></a>00507 <span class="comment">/**</span>
<a name="l00508"></a>00508 <span class="comment"> * Set the minimum packet size used in rate computations of HTB class.</span>
<a name="l00509"></a>00509 <span class="comment"> * @arg class HTB class to be modified.</span>
<a name="l00510"></a>00510 <span class="comment"> * @arg mpu Size in bytes.</span>
<a name="l00511"></a>00511 <span class="comment"> */</span>
<a name="l00512"></a><a class="code" href="group__htb.html#ga211078d37498b663d99a463400fb3b88">00512</a> <span class="keywordtype">void</span> <a class="code" href="group__htb.html#ga211078d37498b663d99a463400fb3b88" title="Set the minimum packet size used in rate computations of HTB class.">rtnl_htb_set_mpu</a>(<span class="keyword">struct</span> rtnl_class *<span class="keyword">class</span>, uint8_t mpu)
<a name="l00513"></a>00513 {
<a name="l00514"></a>00514 <span class="keyword">struct </span>rtnl_htb_class *d = htb_class(<span class="keyword">class</span>);
<a name="l00515"></a>00515 <span class="keywordflow">if</span> (d == NULL)
<a name="l00516"></a>00516 <span class="keywordflow">return</span>;
<a name="l00517"></a>00517
<a name="l00518"></a>00518 d->ch_mpu = mpu;
<a name="l00519"></a>00519 d->ch_mask |= SCH_HTB_HAS_MPU;
<a name="l00520"></a>00520 }
<a name="l00521"></a>00521 <span class="comment"></span>
<a name="l00522"></a>00522 <span class="comment">/** @} */</span>
<a name="l00523"></a>00523
<a name="l00524"></a>00524 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structrtnl__qdisc__ops.html" title="Qdisc Operations.">rtnl_qdisc_ops</a> htb_qdisc_ops = {
<a name="l00525"></a>00525 .<a class="code" href="structrtnl__qdisc__ops.html#a5df5424d29acfa9ae66e7f35a9ca2081" title="Kind/Name of Qdisc.">qo_kind</a> = <span class="stringliteral">"htb"</span>,
<a name="l00526"></a>00526 .qo_msg_parser = htb_qdisc_msg_parser,
<a name="l00527"></a>00527 .qo_free_data = htb_qdisc_free_data,
<a name="l00528"></a>00528 .qo_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = htb_qdisc_dump_brief,
<a name="l00529"></a>00529 .qo_get_opts = htb_qdisc_get_opts,
<a name="l00530"></a>00530 };
<a name="l00531"></a>00531
<a name="l00532"></a>00532 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structrtnl__class__ops.html" title="Class operations.">rtnl_class_ops</a> htb_class_ops = {
<a name="l00533"></a>00533 .<a class="code" href="structrtnl__class__ops.html#a9811b549e3ce4000bdc2a6354d939a48" title="Kind/Name of class.">co_kind</a> = <span class="stringliteral">"htb"</span>,
<a name="l00534"></a>00534 .co_msg_parser = htb_class_msg_parser,
<a name="l00535"></a>00535 .co_free_data = htb_class_free_data,
<a name="l00536"></a>00536 .co_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a5597887c080d5ecae358b6065a4048fd" title="Dump object in a brief one-liner.">NL_DUMP_BRIEF</a>] = htb_class_dump_brief,
<a name="l00537"></a>00537 .co_dump[<a class="code" href="group__utils.html#ggacfb5566c73f0965c5241d7d49bc717e9a1445106c7af529b2c99ee289fbcd3179" title="Dump all attributes but no statistics.">NL_DUMP_FULL</a>] = htb_class_dump_full,
<a name="l00538"></a>00538 .co_get_opts = htb_class_get_opts,
<a name="l00539"></a>00539 };
<a name="l00540"></a>00540
<a name="l00541"></a>00541 <span class="keyword">static</span> <span class="keywordtype">void</span> __init htb_init(<span class="keywordtype">void</span>)
<a name="l00542"></a>00542 {
<a name="l00543"></a>00543 <a class="code" href="group__qdisc__api.html#ga52a96211c54bed89f60bc4b106747133" title="Register a qdisc module.">rtnl_qdisc_register</a>(&htb_qdisc_ops);
<a name="l00544"></a>00544 <a class="code" href="group__class__api.html#ga4b91aba76921831debf31cca34851e5c" title="Register a class module.">rtnl_class_register</a>(&htb_class_ops);
<a name="l00545"></a>00545 }
<a name="l00546"></a>00546
<a name="l00547"></a>00547 <span class="keyword">static</span> <span class="keywordtype">void</span> __exit htb_exit(<span class="keywordtype">void</span>)
<a name="l00548"></a>00548 {
<a name="l00549"></a>00549 <a class="code" href="group__qdisc__api.html#ga0e1c8c70c536964578dd544fd23f80ff" title="Unregister a qdisc module.">rtnl_qdisc_unregister</a>(&htb_qdisc_ops);
<a name="l00550"></a>00550 <a class="code" href="group__class__api.html#ga2ee825cb98cd61b36c92bbde009cda79" title="Unregister a class module.">rtnl_class_unregister</a>(&htb_class_ops);
<a name="l00551"></a>00551 }
<a name="l00552"></a>00552 <span class="comment"></span>
<a name="l00553"></a>00553 <span class="comment">/** @} */</span>
</pre></div></div>
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