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<h1>lib/netfilter/log.c</h1> </div>
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<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * lib/netfilter/log.c Netfilter Log</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) 2007 Philip Craig <philipc@snapgear.com></span>
<a name="l00011"></a>00011 <span class="comment"> * Copyright (c) 2007 Secure Computing Corporation</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 nfnl</span>
<a name="l00016"></a>00016 <span class="comment"> * @defgroup log Log</span>
<a name="l00017"></a>00017 <span class="comment"> * @brief</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 <sys/types.h></span>
<a name="l00022"></a>00022 <span class="preprocessor">#include <linux/netfilter/nfnetlink_log.h></span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <span class="preprocessor">#include <netlink-local.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <netlink/attr.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <netlink/netfilter/nfnl.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <netlink/netfilter/log.h></span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> nfnl_log_ops;
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#if __BYTE_ORDER == __BIG_ENDIAN</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="keyword">static</span> uint64_t ntohll(uint64_t x)
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <span class="keywordflow">return</span> x;
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036 <span class="preprocessor">#elif __BYTE_ORDER == __LITTLE_ENDIAN</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="keyword">static</span> uint64_t ntohll(uint64_t x)
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="keywordflow">return</span> __bswap_64(x);
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041 <span class="preprocessor">#endif</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnla__policy.html" title="attribute validation policy">nla_policy</a> log_policy[NFULA_MAX+1] = {
<a name="l00044"></a>00044 [NFULA_PACKET_HDR] = {
<a name="l00045"></a>00045 .<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>nfulnl_msg_packet_hdr)
<a name="l00046"></a>00046 },
<a name="l00047"></a>00047 [NFULA_MARK] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00048"></a>00048 [NFULA_TIMESTAMP] = {
<a name="l00049"></a>00049 .minlen = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>nfulnl_msg_packet_timestamp)
<a name="l00050"></a>00050 },
<a name="l00051"></a>00051 [NFULA_IFINDEX_INDEV] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00052"></a>00052 [NFULA_IFINDEX_OUTDEV] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00053"></a>00053 [NFULA_IFINDEX_PHYSINDEV] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00054"></a>00054 [NFULA_IFINDEX_PHYSOUTDEV] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00055"></a>00055 [NFULA_HWADDR] = {
<a name="l00056"></a>00056 .minlen = <span class="keyword">sizeof</span>(<span class="keyword">struct </span>nfulnl_msg_packet_hw)
<a name="l00057"></a>00057 },
<a name="l00058"></a>00058 <span class="comment">//[NFULA_PAYLOAD]</span>
<a name="l00059"></a>00059 [NFULA_PREFIX] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55ba284d1eafd6d5d99cedaff3cd5f5a8378" title="character string">NLA_STRING</a>, },
<a name="l00060"></a>00060 [NFULA_UID] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00061"></a>00061 [NFULA_SEQ] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00062"></a>00062 [NFULA_SEQ_GLOBAL] = { .type = <a class="code" href="group__attr.html#gga06fc87d81c62e9abb8790b6e5713c55babddb836025b456b06b025c293bff6dc8" title="32bit integer">NLA_U32</a> },
<a name="l00063"></a>00063 };
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keyword">struct </span>nfnl_log *nfnlmsg_log_parse(<span class="keyword">struct</span> <a class="code" href="structnlmsghdr.html" title="Netlink message header.">nlmsghdr</a> *nlh)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="keyword">struct </span>nfnl_log *log;
<a name="l00068"></a>00068 <span class="keyword">struct </span>nlattr *tb[NFULA_MAX+1];
<a name="l00069"></a>00069 <span class="keyword">struct </span>nlattr *attr;
<a name="l00070"></a>00070 <span class="keywordtype">int</span> err;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 log = nfnl_log_alloc();
<a name="l00073"></a>00073 <span class="keywordflow">if</span> (!log)
<a name="l00074"></a>00074 <span class="keywordflow">return</span> NULL;
<a name="l00075"></a>00075
<a name="l00076"></a>00076 log->ce_msgtype = nlh-><a class="code" href="structnlmsghdr.html#a7232c4e6cb513010e64887b7eebf8823" title="Message type (content type)">nlmsg_type</a>;
<a name="l00077"></a>00077
<a name="l00078"></a>00078 err = <a class="code" href="group__msg.html#ga2671eefe95c3e44dec8ddab51ae57593" title="parse attributes of a netlink message">nlmsg_parse</a>(nlh, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> nfgenmsg), tb, NFULA_MAX,
<a name="l00079"></a>00079 log_policy);
<a name="l00080"></a>00080 <span class="keywordflow">if</span> (err < 0)
<a name="l00081"></a>00081 <span class="keywordflow">goto</span> errout;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 nfnl_log_set_family(log, <a class="code" href="group__nfnl.html#ga91b2b1c9b8e243fe070229ef3fff3d6c" title="Get netfilter family from message.">nfnlmsg_family</a>(nlh));
<a name="l00084"></a>00084
<a name="l00085"></a>00085 attr = tb[NFULA_PACKET_HDR];
<a name="l00086"></a>00086 <span class="keywordflow">if</span> (attr) {
<a name="l00087"></a>00087 <span class="keyword">struct </span>nfulnl_msg_packet_hdr *hdr = <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(attr);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 nfnl_log_set_hwproto(log, hdr->hw_protocol);
<a name="l00090"></a>00090 nfnl_log_set_hook(log, hdr->hook);
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a>00093 attr = tb[NFULA_MARK];
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (attr)
<a name="l00095"></a>00095 nfnl_log_set_mark(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00096"></a>00096
<a name="l00097"></a>00097 attr = tb[NFULA_TIMESTAMP];
<a name="l00098"></a>00098 <span class="keywordflow">if</span> (attr) {
<a name="l00099"></a>00099 <span class="keyword">struct </span>nfulnl_msg_packet_timestamp *timestamp = <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(attr);
<a name="l00100"></a>00100 <span class="keyword">struct </span>timeval tv;
<a name="l00101"></a>00101
<a name="l00102"></a>00102 tv.tv_sec = ntohll(timestamp->sec);
<a name="l00103"></a>00103 tv.tv_usec = ntohll(timestamp->usec);
<a name="l00104"></a>00104 nfnl_log_set_timestamp(log, &tv);
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106
<a name="l00107"></a>00107 attr = tb[NFULA_IFINDEX_INDEV];
<a name="l00108"></a>00108 <span class="keywordflow">if</span> (attr)
<a name="l00109"></a>00109 nfnl_log_set_indev(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00110"></a>00110
<a name="l00111"></a>00111 attr = tb[NFULA_IFINDEX_OUTDEV];
<a name="l00112"></a>00112 <span class="keywordflow">if</span> (attr)
<a name="l00113"></a>00113 nfnl_log_set_outdev(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00114"></a>00114
<a name="l00115"></a>00115 attr = tb[NFULA_IFINDEX_PHYSINDEV];
<a name="l00116"></a>00116 <span class="keywordflow">if</span> (attr)
<a name="l00117"></a>00117 nfnl_log_set_physindev(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00118"></a>00118
<a name="l00119"></a>00119 attr = tb[NFULA_IFINDEX_PHYSOUTDEV];
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (attr)
<a name="l00121"></a>00121 nfnl_log_set_physoutdev(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00122"></a>00122
<a name="l00123"></a>00123 attr = tb[NFULA_HWADDR];
<a name="l00124"></a>00124 <span class="keywordflow">if</span> (attr) {
<a name="l00125"></a>00125 <span class="keyword">struct </span>nfulnl_msg_packet_hw *hw = <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(attr);
<a name="l00126"></a>00126
<a name="l00127"></a>00127 nfnl_log_set_hwaddr(log, hw->hw_addr, ntohs(hw->hw_addrlen));
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00130"></a>00130 attr = tb[NFULA_PAYLOAD];
<a name="l00131"></a>00131 <span class="keywordflow">if</span> (attr) {
<a name="l00132"></a>00132 err = nfnl_log_set_payload(log, <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(attr), <a class="code" href="group__attr.html#gac5a7705797946fa9c0775997bb8d130b" title="length of payload">nla_len</a>(attr));
<a name="l00133"></a>00133 <span class="keywordflow">if</span> (err < 0)
<a name="l00134"></a>00134 <span class="keywordflow">goto</span> errout;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 attr = tb[NFULA_PREFIX];
<a name="l00138"></a>00138 <span class="keywordflow">if</span> (attr) {
<a name="l00139"></a>00139 err = nfnl_log_set_prefix(log, <a class="code" href="group__attr.html#gaf39d6bbd2be1fc2de30b6b7d079a5fce" title="head of payload">nla_data</a>(attr));
<a name="l00140"></a>00140 <span class="keywordflow">if</span> (err < 0)
<a name="l00141"></a>00141 <span class="keywordflow">goto</span> errout;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 attr = tb[NFULA_UID];
<a name="l00145"></a>00145 <span class="keywordflow">if</span> (attr)
<a name="l00146"></a>00146 nfnl_log_set_uid(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00147"></a>00147
<a name="l00148"></a>00148 attr = tb[NFULA_SEQ];
<a name="l00149"></a>00149 <span class="keywordflow">if</span> (attr)
<a name="l00150"></a>00150 nfnl_log_set_seq(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00151"></a>00151
<a name="l00152"></a>00152 attr = tb[NFULA_SEQ_GLOBAL];
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (attr)
<a name="l00154"></a>00154 nfnl_log_set_seq_global(log, ntohl(<a class="code" href="group__attr.html#gabda0290a8b26cc577c2c5cefa814aeac" title="Return payload of u32 attribute.">nla_get_u32</a>(attr)));
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keywordflow">return</span> log;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 errout:
<a name="l00159"></a>00159 nfnl_log_put(log);
<a name="l00160"></a>00160 <span class="keywordflow">return</span> NULL;
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keyword">static</span> <span class="keywordtype">int</span> log_msg_parser(<span class="keyword">struct</span> <a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> *ops, <span class="keyword">struct</span> <a class="code" href="structsockaddr__nl.html" title="Netlink socket address.">sockaddr_nl</a> *who,
<a name="l00164"></a>00164 <span class="keyword">struct</span> <a class="code" href="structnlmsghdr.html" title="Netlink message header.">nlmsghdr</a> *nlh, <span class="keyword">struct</span> <a class="code" href="structnl__parser__param.html">nl_parser_param</a> *pp)
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keyword">struct </span>nfnl_log *log;
<a name="l00167"></a>00167 <span class="keywordtype">int</span> err;
<a name="l00168"></a>00168
<a name="l00169"></a>00169 log = nfnlmsg_log_parse(nlh);
<a name="l00170"></a>00170 <span class="keywordflow">if</span> (log == NULL)
<a name="l00171"></a>00171 <span class="keywordflow">goto</span> errout_errno;
<a name="l00172"></a>00172
<a name="l00173"></a>00173 err = pp->pp_cb((<span class="keyword">struct</span> nl_object *) log, pp);
<a name="l00174"></a>00174 <span class="keywordflow">if</span> (err < 0)
<a name="l00175"></a>00175 <span class="keywordflow">goto</span> errout;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 err = P_ACCEPT;
<a name="l00178"></a>00178
<a name="l00179"></a>00179 errout:
<a name="l00180"></a>00180 nfnl_log_put(log);
<a name="l00181"></a>00181 <span class="keywordflow">return</span> err;
<a name="l00182"></a>00182
<a name="l00183"></a>00183 errout_errno:
<a name="l00184"></a>00184 err = nl_get_errno();
<a name="l00185"></a>00185 <span class="keywordflow">goto</span> errout;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 <span class="comment"></span>
<a name="l00188"></a>00188 <span class="comment">/**</span>
<a name="l00189"></a>00189 <span class="comment"> * @name Log Commands</span>
<a name="l00190"></a>00190 <span class="comment"> * @{</span>
<a name="l00191"></a>00191 <span class="comment"> */</span>
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="keyword">static</span> <span class="keyword">struct </span>nl_msg *build_log_cmd_msg(uint8_t family, uint16_t queuenum,
<a name="l00194"></a>00194 uint8_t command)
<a name="l00195"></a>00195 {
<a name="l00196"></a>00196 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00197"></a>00197 <span class="keyword">struct </span>nfulnl_msg_config_cmd cmd;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 msg = <a class="code" href="group__nfnl.html#gaf2c5b1fb596e8fdb62eb782496ac88c3" title="Allocate a new netfilter netlink message.">nfnlmsg_alloc_simple</a>(NFNL_SUBSYS_ULOG, NFULNL_MSG_CONFIG, 0,
<a name="l00200"></a>00200 family, queuenum);
<a name="l00201"></a>00201 <span class="keywordflow">if</span> (msg == NULL)
<a name="l00202"></a>00202 <span class="keywordflow">return</span> NULL;
<a name="l00203"></a>00203
<a name="l00204"></a>00204 cmd.command = command;
<a name="l00205"></a>00205 <span class="keywordflow">if</span> (<a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, NFULA_CFG_CMD, <span class="keyword">sizeof</span>(cmd), &cmd) < 0)
<a name="l00206"></a>00206 <span class="keywordflow">goto</span> nla_put_failure;
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">return</span> msg;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 nla_put_failure:
<a name="l00211"></a>00211 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00212"></a>00212 <span class="keywordflow">return</span> NULL;
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keyword">static</span> <span class="keywordtype">int</span> send_log_msg(<span class="keyword">struct</span> nl_handle *handle, <span class="keyword">struct</span> nl_msg *msg)
<a name="l00216"></a>00216 {
<a name="l00217"></a>00217 <span class="keywordtype">int</span> err;
<a name="l00218"></a>00218
<a name="l00219"></a>00219 err = <a class="code" href="group__nl.html#ga01a2aad82350f867e704d5c696438b60" title="Send netlink message and check &amp; extend header values as needed.">nl_send_auto_complete</a>(handle, msg);
<a name="l00220"></a>00220 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (err < 0)
<a name="l00222"></a>00222 <span class="keywordflow">return</span> err;
<a name="l00223"></a>00223
<a name="l00224"></a>00224 <span class="keywordflow">return</span> <a class="code" href="group__nl.html#gaa65fec588e0a0a2de1881fb8366ccd79" title="Wait for ACK.">nl_wait_for_ack</a>(handle);
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keyword">struct </span>nl_msg *nfnl_log_build_bind(uint16_t queuenum)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 <span class="keywordflow">return</span> build_log_cmd_msg(0, queuenum, NFULNL_CFG_CMD_BIND);
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="keywordtype">int</span> nfnl_log_bind(<span class="keyword">struct</span> nl_handle *nlh, uint16_t queuenum)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00235"></a>00235
<a name="l00236"></a>00236 msg = nfnl_log_build_bind(queuenum);
<a name="l00237"></a>00237 <span class="keywordflow">if</span> (!msg)
<a name="l00238"></a>00238 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00239"></a>00239
<a name="l00240"></a>00240 <span class="keywordflow">return</span> send_log_msg(nlh, msg);
<a name="l00241"></a>00241 }
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="keyword">struct </span>nl_msg *nfnl_log_build_unbind(uint16_t queuenum)
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 <span class="keywordflow">return</span> build_log_cmd_msg(0, queuenum, NFULNL_CFG_CMD_UNBIND);
<a name="l00246"></a>00246 }
<a name="l00247"></a>00247
<a name="l00248"></a>00248 <span class="keywordtype">int</span> nfnl_log_unbind(<span class="keyword">struct</span> nl_handle *nlh, uint16_t queuenum)
<a name="l00249"></a>00249 {
<a name="l00250"></a>00250 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00251"></a>00251
<a name="l00252"></a>00252 msg = nfnl_log_build_bind(queuenum);
<a name="l00253"></a>00253 <span class="keywordflow">if</span> (!msg)
<a name="l00254"></a>00254 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="keywordflow">return</span> send_log_msg(nlh, msg);
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <span class="keyword">struct </span>nl_msg *nfnl_log_build_pf_bind(uint8_t pf)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 <span class="keywordflow">return</span> build_log_cmd_msg(pf, 0, NFULNL_CFG_CMD_PF_BIND);
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="keywordtype">int</span> nfnl_log_pf_bind(<span class="keyword">struct</span> nl_handle *nlh, uint8_t pf)
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00267"></a>00267
<a name="l00268"></a>00268 msg = nfnl_log_build_pf_bind(pf);
<a name="l00269"></a>00269 <span class="keywordflow">if</span> (!msg)
<a name="l00270"></a>00270 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">return</span> send_log_msg(nlh, msg);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keyword">struct </span>nl_msg *nfnl_log_build_pf_unbind(uint8_t pf)
<a name="l00276"></a>00276 {
<a name="l00277"></a>00277 <span class="keywordflow">return</span> build_log_cmd_msg(pf, 0, NFULNL_CFG_CMD_PF_UNBIND);
<a name="l00278"></a>00278 }
<a name="l00279"></a>00279
<a name="l00280"></a>00280 <span class="keywordtype">int</span> nfnl_log_pf_unbind(<span class="keyword">struct</span> nl_handle *nlh, uint8_t pf)
<a name="l00281"></a>00281 {
<a name="l00282"></a>00282 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00283"></a>00283
<a name="l00284"></a>00284 msg = nfnl_log_build_pf_unbind(pf);
<a name="l00285"></a>00285 <span class="keywordflow">if</span> (!msg)
<a name="l00286"></a>00286 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00287"></a>00287
<a name="l00288"></a>00288 <span class="keywordflow">return</span> send_log_msg(nlh, msg);
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="keyword">struct </span>nl_msg *nfnl_log_build_mode(uint16_t queuenum, uint8_t copy_mode,
<a name="l00292"></a>00292 uint32_t copy_range)
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00295"></a>00295 <span class="keyword">struct </span>nfulnl_msg_config_mode mode;
<a name="l00296"></a>00296
<a name="l00297"></a>00297 msg = <a class="code" href="group__nfnl.html#gaf2c5b1fb596e8fdb62eb782496ac88c3" title="Allocate a new netfilter netlink message.">nfnlmsg_alloc_simple</a>(NFNL_SUBSYS_ULOG, NFULNL_MSG_CONFIG, 0,
<a name="l00298"></a>00298 0, queuenum);
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (msg == NULL)
<a name="l00300"></a>00300 <span class="keywordflow">return</span> NULL;
<a name="l00301"></a>00301
<a name="l00302"></a>00302 mode.copy_mode = copy_mode;
<a name="l00303"></a>00303 mode.copy_range = htonl(copy_range);
<a name="l00304"></a>00304 <span class="keywordflow">if</span> (<a class="code" href="group__attr.html#ga8b3964330f885da7f204d5e4609e4761" title="Add a netlink attribute to a netlink message.">nla_put</a>(msg, NFULA_CFG_MODE, <span class="keyword">sizeof</span>(mode), &mode) < 0)
<a name="l00305"></a>00305 <span class="keywordflow">goto</span> nla_put_failure;
<a name="l00306"></a>00306
<a name="l00307"></a>00307 <span class="keywordflow">return</span> msg;
<a name="l00308"></a>00308
<a name="l00309"></a>00309 nla_put_failure:
<a name="l00310"></a>00310 <a class="code" href="group__msg.html#ga138ba9bee70553f9fbe7143deacad48c" title="Free a netlink message.">nlmsg_free</a>(msg);
<a name="l00311"></a>00311 <span class="keywordflow">return</span> NULL;
<a name="l00312"></a>00312 }
<a name="l00313"></a>00313
<a name="l00314"></a>00314 <span class="keywordtype">int</span> nfnl_log_set_mode(<span class="keyword">struct</span> nl_handle *nlh, uint16_t queuenum,
<a name="l00315"></a>00315 uint8_t copy_mode, uint32_t copy_range)
<a name="l00316"></a>00316 {
<a name="l00317"></a>00317 <span class="keyword">struct </span>nl_msg *msg;
<a name="l00318"></a>00318
<a name="l00319"></a>00319 msg = nfnl_log_build_mode(queuenum, copy_mode, copy_range);
<a name="l00320"></a>00320 <span class="keywordflow">if</span> (!msg)
<a name="l00321"></a>00321 <span class="keywordflow">return</span> nl_get_errno();
<a name="l00322"></a>00322 <span class="keywordflow">return</span> send_log_msg(nlh, msg);
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324 <span class="comment"></span>
<a name="l00325"></a>00325 <span class="comment">/** @} */</span>
<a name="l00326"></a>00326
<a name="l00327"></a>00327 <span class="preprocessor">#define NFNLMSG_LOG_TYPE(type) NFNLMSG_TYPE(NFNL_SUBSYS_ULOG, (type))</span>
<a name="l00328"></a>00328 <span class="preprocessor"></span><span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="structnl__cache__ops.html" title="Cache Operations.">nl_cache_ops</a> nfnl_log_ops = {
<a name="l00329"></a>00329 .co_name = <span class="stringliteral">"netfilter/log"</span>,
<a name="l00330"></a>00330 .co_hdrsize = NFNL_HDRLEN,
<a name="l00331"></a>00331 .co_msgtypes = {
<a name="l00332"></a>00332 { NFNLMSG_LOG_TYPE(NFULNL_MSG_PACKET), NL_ACT_NEW, <span class="stringliteral">"new"</span> },
<a name="l00333"></a>00333 END_OF_MSGTYPES_LIST,
<a name="l00334"></a>00334 },
<a name="l00335"></a>00335 .co_protocol = NETLINK_NETFILTER,
<a name="l00336"></a>00336 .co_msg_parser = log_msg_parser,
<a name="l00337"></a>00337 .co_obj_ops = &log_obj_ops,
<a name="l00338"></a>00338 };
<a name="l00339"></a>00339
<a name="l00340"></a>00340 <span class="keyword">static</span> <span class="keywordtype">void</span> __init log_init(<span class="keywordtype">void</span>)
<a name="l00341"></a>00341 {
<a name="l00342"></a>00342 <a class="code" href="group__cache__mngt.html#ga390eeb1fa61634cf1c216792c6df63c3" title="Register a set of cache operations.">nl_cache_mngt_register</a>(&nfnl_log_ops);
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344
<a name="l00345"></a>00345 <span class="keyword">static</span> <span class="keywordtype">void</span> __exit log_exit(<span class="keywordtype">void</span>)
<a name="l00346"></a>00346 {
<a name="l00347"></a>00347 <a class="code" href="group__cache__mngt.html#ga09f56b767b3868b7e0cf8559863dde77" title="Unregister a set of cache operations.">nl_cache_mngt_unregister</a>(&nfnl_log_ops);
<a name="l00348"></a>00348 }
<a name="l00349"></a>00349 <span class="comment"></span>
<a name="l00350"></a>00350 <span class="comment">/** @} */</span>
</pre></div></div>
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