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Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/extensions/test_netemul/test_netemul.y b/extensions/test_netemul/test_netemul.y
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+/*********************************************************************************************************
+* Software License Agreement (BSD License) *
+* Author: Sebastien Decugis <sdecugis@freediameter.net> *
+* *
+* Copyright (c) 2013, WIDE Project and NICT *
+* All rights reserved. *
+* *
+* Redistribution and use of this software in source and binary forms, with or without modification, are *
+* permitted provided that the following conditions are met: *
+* *
+* * Redistributions of source code must retain the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer. *
+* *
+* * Redistributions in binary form must reproduce the above *
+* copyright notice, this list of conditions and the *
+* following disclaimer in the documentation and/or other *
+* materials provided with the distribution. *
+* *
+* * Neither the name of the WIDE Project or NICT nor the *
+* names of its contributors may be used to endorse or *
+* promote products derived from this software without *
+* specific prior written permission of WIDE Project and *
+* NICT. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
+* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
+* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
+* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+*********************************************************************************************************/
+
+/* Yacc extension's configuration parser.
+ */
+
+/* For development only : */
+%debug
+%error-verbose
+
+/* The parser receives the configuration file filename as parameter */
+%parse-param {char * conffile}
+
+/* Keep track of location */
+%locations
+%pure-parser
+
+%{
+#include "test_netemul.h"
+#include "test_netemul.tab.h" /* YYLTYPE */
+
+/* Forward declaration */
+int yyparse(char * conffile);
+
+/* Parse the configuration file */
+int tne_conf_handle(char * conffile)
+{
+ extern FILE * test_netemulin;
+ int ret;
+
+ TRACE_ENTRY("%p", conffile);
+
+ TRACE_DEBUG (FULL, "Parsing configuration file: %s...", conffile);
+
+ test_netemulin = fopen(conffile, "r");
+ if (test_netemulin == NULL) {
+ ret = errno;
+ fd_log_debug("Unable to open extension configuration file %s for reading: %s", conffile, strerror(ret));
+ TRACE_DEBUG (INFO, "Error occurred, message logged -- configuration file.");
+ return ret;
+ }
+
+ ret = yyparse(conffile);
+
+ fclose(test_netemulin);
+
+ if (ret != 0) {
+ TRACE_DEBUG (INFO, "Unable to parse the configuration file.");
+ return EINVAL;
+ } else {
+ TRACE_DEBUG(FULL, "[test_netemul] latency: %lu ms (var:%u%%) duplicates: %G probability.", tne_conf.lat_avg, tne_conf.lat_dev, tne_conf.dupl_proba);
+ }
+
+ return 0;
+}
+
+/* The Lex parser prototype */
+int test_netemullex(YYSTYPE *lvalp, YYLTYPE *llocp);
+
+/* Function to report the errors */
+void yyerror (YYLTYPE *ploc, char * conffile, char const *s)
+{
+ TRACE_DEBUG(INFO, "Error in configuration parsing");
+
+ if (ploc->first_line != ploc->last_line)
+ fd_log_debug("%s:%d.%d-%d.%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_line, ploc->last_column, s);
+ else if (ploc->first_column != ploc->last_column)
+ fd_log_debug("%s:%d.%d-%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_column, s);
+ else
+ fd_log_debug("%s:%d.%d : %s", conffile, ploc->first_line, ploc->first_column, s);
+}
+
+%}
+
+/* Values returned by lex for token */
+%union {
+ unsigned long ulong;
+ float decimal;
+}
+
+/* In case of error in the lexical analysis */
+%token LEX_ERROR
+
+%token <ulong> ULONG
+%token <decimal> FLOAT
+
+/* Tokens */
+%token LATENCY_AVERAGE
+%token LATENCY_DEVIATION
+%token DUPL_PROBA
+%token UNIT_SEC
+%token UNIT_MSEC
+
+
+/* -------------------------------------- */
+%%
+
+ /* The grammar definition */
+conffile: /* empty */
+ | conffile latency_average
+ | conffile latency_deviation
+ | conffile dupl_proba
+ ;
+
+ /* a server entry */
+latency_average: LATENCY_AVERAGE '=' ULONG UNIT_SEC ';'
+ {
+ tne_conf.lat_avg = $3 * 1000;
+ }
+ |
+ LATENCY_AVERAGE '=' ULONG UNIT_MSEC ';'
+ {
+ tne_conf.lat_avg = $3;
+ }
+ ;
+
+latency_deviation: LATENCY_DEVIATION '=' ULONG '%' ';'
+ {
+ tne_conf.lat_dev = (int)$3;
+ if ((tne_conf.lat_dev < 0) || (tne_conf.lat_dev > 100)) {
+ yyerror (&yylloc, conffile, "Latency_Deviation must be comprised between 0 and 100.");
+ YYERROR;
+ }
+ }
+ ;
+
+dupl_proba: DUPL_PROBA '=' ULONG ';'
+ {
+ tne_conf.dupl_proba = (float) $3;
+ }
+ | DUPL_PROBA '=' FLOAT ';'
+ {
+ tne_conf.dupl_proba = $3;
+ }
+ | DUPL_PROBA '=' ULONG '/' ULONG ';'
+ {
+ tne_conf.dupl_proba = ((float)$3) / ((float)$5) ;
+ }
+ ;