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annotate extensions/dbg_msg_dumps/dbg_msg_dumps.c @ 1126:d6e18ebca0c5

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New extension dbg_msg_dumps for debug / learning.
author Sebastien Decugis <sdecugis@freediameter.net>
date Wed, 15 May 2013 10:05:22 +0800
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children 7c5449ddc434
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1126
d6e18ebca0c5 New extension dbg_msg_dumps for debug / learning.
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> *
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4 * *
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5 * Copyright (c) 2013, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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35
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36 /* This extension uses the hooks mechanism to display the full content of received and sent messages, for
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37 learning & debugging purpose.
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38 Do NOT use this extension in production environment because it will slow down all operation. */
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39
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40 #include <freeDiameter/extension.h>
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41
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42 static struct fd_hook_hdl *md_hdl = NULL;
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43
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44 /* The callback called when messages are received and sent */
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45 static void md_hook_cb(enum fd_hook_type type, struct msg * msg, struct peer_hdr * peer, void * other, struct fd_hook_permsgdata *pmd, void * regdata)
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46 {
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47 char * buf = NULL;
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48 size_t len;
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49
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50 CHECK_MALLOC_DO( fd_msg_dump_treeview(&buf, &len, NULL, msg, fd_g_config->cnf_dict, 1, 1),
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51 { LOG_E("Error while dumping a message"); return; } );
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52
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53 LOG_N("%s %s: %s",
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54 (type == HOOK_MESSAGE_RECEIVED) ? "RCV FROM" : "SENT TO",
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55 peer ? peer->info.pi_diamid:"<unknown>",
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56 buf);
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57
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58 free(buf);
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59 }
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60
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61 /* Entry point */
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62 static int md_main(char * conffile)
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63 {
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64 TRACE_ENTRY("%p", conffile);
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65
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66 CHECK_FCT( fd_hook_register( ((1 << HOOK_MESSAGE_RECEIVED) | (1 << HOOK_MESSAGE_SENT)),
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67 md_hook_cb, NULL, NULL, &md_hdl) );
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68
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69 return 0;
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70 }
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71
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72 /* Cleanup */
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73 void fd_ext_fini(void)
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74 {
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75 TRACE_ENTRY();
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76 CHECK_FCT_DO( fd_hook_unregister( md_hdl ), );
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77 return ;
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78 }
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79
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80 EXTENSION_ENTRY("dbg_msg_dumps", md_main);
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