efru.c.html 7.9 KB

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  21. /*====================================================================*
  22. *
  23. * Copyright (c) 2013 Qualcomm Atheros, Inc.
  24. *
  25. * All rights reserved.
  26. *
  27. * Redistribution and use in source and binary forms, with or
  28. * without modification, are permitted (subject to the limitations
  29. * in the disclaimer below) provided that the following conditions
  30. * are met:
  31. *
  32. * * Redistributions of source code must retain the above copyright
  33. * notice, this list of conditions and the following disclaimer.
  34. *
  35. * * Redistributions in binary form must reproduce the above
  36. * copyright notice, this list of conditions and the following
  37. * disclaimer in the documentation and/or other materials
  38. * provided with the distribution.
  39. *
  40. * * Neither the name of Qualcomm Atheros nor the names of
  41. * its contributors may be used to endorse or promote products
  42. * derived from this software without specific prior written
  43. * permission.
  44. *
  45. * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
  46. * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
  47. * COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR
  48. * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  49. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  50. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  51. * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  52. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  53. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  54. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  56. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  57. * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  58. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  59. *
  60. *--------------------------------------------------------------------*/
  61. /*====================================================================*
  62. *
  63. * efru.c - Ethernet Frame Read Utility
  64. *
  65. * print message header and/or full message content on stdout for
  66. * each HomePlugAV or Atheros Vendor Specific message received by
  67. * the host;
  68. *
  69. * this program receives raw ethernet frames and so requires root
  70. * privileges; if you install it using &quot;chmod 555&quot; and &quot;chown
  71. * root:root&quot; then you must login as root to run it; otherwise, you
  72. * can install it using &quot;chmod 4555&quot; and &quot;chown root:root&quot; so that
  73. * anyone can run it; the program will refuse to run until you get
  74. * thing right;
  75. *
  76. * Contributor(s):
  77. * Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
  78. *
  79. *--------------------------------------------------------------------*/
  80. /*====================================================================*
  81. * system header files;
  82. *--------------------------------------------------------------------*/
  83. #include &lt;fcntl.h&gt;
  84. #include &lt;stdio.h&gt;
  85. #include &lt;limits.h&gt;
  86. #include &lt;ctype.h&gt;
  87. #include &lt;unistd.h&gt;
  88. #include &lt;stdint.h&gt;
  89. #include &lt;stdlib.h&gt;
  90. #include &lt;string.h&gt;
  91. #include &lt;errno.h&gt;
  92. #ifdef __linux__
  93. #include &lt;net/if.h&gt;
  94. #include &lt;net/if_arp.h&gt;
  95. #include &lt;netpacket/packet.h&gt;
  96. #include &lt;signal.h&gt;
  97. #endif
  98. /*====================================================================*
  99. * custom header files;
  100. *--------------------------------------------------------------------*/
  101. #include &quot;../tools/getoptv.h&quot;
  102. #include &quot;../tools/putoptv.h&quot;
  103. #include &quot;../tools/memory.h&quot;
  104. #include &quot;../tools/number.h&quot;
  105. #include &quot;../tools/types.h&quot;
  106. #include &quot;../tools/flags.h&quot;
  107. #include &quot;../tools/error.h&quot;
  108. #include &quot;../ether/channel.h&quot;
  109. #include &quot;../plc/plc.h&quot;
  110. #include &quot;../mme/mme.h&quot;
  111. /*====================================================================*
  112. * custom source files;
  113. *--------------------------------------------------------------------*/
  114. #ifndef MAKEFILE
  115. #include &quot;../tools/getoptv.c&quot;
  116. #include &quot;../tools/putoptv.c&quot;
  117. #include &quot;../tools/version.c&quot;
  118. #include &quot;../tools/hexdump.c&quot;
  119. #include &quot;../tools/basespec.c&quot;
  120. #include &quot;../tools/uintspec.c&quot;
  121. #include &quot;../tools/todigit.c&quot;
  122. #include &quot;../tools/error.c&quot;
  123. #endif
  124. #ifndef MAKEFILE
  125. #include &quot;../ether/channel.c&quot;
  126. #include &quot;../ether/openchannel.c&quot;
  127. #include &quot;../ether/closechannel.c&quot;
  128. #include &quot;../ether/sendpacket.c&quot;
  129. #include &quot;../ether/readpacket.c&quot;
  130. #endif
  131. /*====================================================================*
  132. * program constants;
  133. *--------------------------------------------------------------------*/
  134. #define EFRU_VERBOSE (1 &lt;&lt; 0)
  135. #define EFRU_SILENCE (1 &lt;&lt; 1)
  136. #define EFRU_INTERFACE &quot;PLC&quot;
  137. #define EFRU_ETHERTYPE ETH_P_802_2
  138. /*====================================================================*
  139. *
  140. * int main (int argc, char * argv[]);
  141. *
  142. *
  143. *--------------------------------------------------------------------*/
  144. int main (int argc, char const * argv [])
  145. {
  146. extern struct channel channel;
  147. struct message message;
  148. static char const * optv [] =
  149. {
  150. &quot;e:i:qt:v&quot;,
  151. PUTOPTV_S_DIVINE,
  152. &quot;Qualcomm Atheros Ethernet Frame Read Utility&quot;,
  153. &quot;e x\tethertype is (x) [&quot; LITERAL (EFRU_ETHERTYPE) &quot;]&quot;,
  154. #if defined (WINPCAP) || defined (LIBPCAP)
  155. &quot;i n\thost interface is (s) [&quot; LITERAL (CHANNEL_ETHNUMBER) &quot;]&quot;,
  156. #else
  157. &quot;i s\thost interface is (n) [&quot; LITERAL (CHANNEL_ETHDEVICE) &quot;]&quot;,
  158. #endif
  159. &quot;q\tsuppress normal output&quot;,
  160. &quot;t n\tread timeout is (n) milliseconds [&quot; LITERAL (CHANNEL_FOREVER) &quot;]&quot;,
  161. &quot;v\tverbose messages on stdout&quot;,
  162. (char const *) (0)
  163. };
  164. flag_t flags = (flag_t)(0);
  165. signed length;
  166. signed c;
  167. if (getenv (EFRU_INTERFACE))
  168. {
  169. #if defined (WINPCAP) || defined (LIBPCAP)
  170. channel.ifindex = atoi (getenv (EFRU_INTERFACE));
  171. #else
  172. channel.ifname = strdup (getenv (EFRU_INTERFACE));
  173. #endif
  174. }
  175. optind = 1;
  176. channel.type = EFRU_ETHERTYPE;
  177. channel.timeout = CHANNEL_FOREVER;
  178. while ((c = getoptv (argc, argv, optv)) != -1)
  179. {
  180. switch (c)
  181. {
  182. case 'e':
  183. channel.type = (uint16_t)(basespec (optarg, 16, sizeof (channel.type)));
  184. break;
  185. case 'i':
  186. #if defined (WIN32)
  187. channel.ifindex = atoi (optarg);
  188. #else
  189. channel.ifname = optarg;
  190. #endif
  191. break;
  192. case 'q':
  193. _setbits (flags, EFRU_SILENCE);
  194. break;
  195. case 't':
  196. channel.timeout = (signed)(uintspec (optarg, 0, UINT_MAX));
  197. break;
  198. case 'v':
  199. _setbits (flags, EFRU_VERBOSE);
  200. break;
  201. default:
  202. break;
  203. }
  204. }
  205. argc -= optind;
  206. argv += optind;
  207. if (argc)
  208. {
  209. error (1, ECANCELED, ERROR_TOOMANY);
  210. }
  211. openchannel (&amp;channel);
  212. while ((length = readpacket (&amp;channel, &amp;message, sizeof (message))) &gt;= 0)
  213. {
  214. hexdump (&amp;message, 0, length, stdout);
  215. }
  216. closechannel (&amp;channel);
  217. return (0);
  218. }
  219. </pre>
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