240 lines
6.5 KiB
Plaintext
240 lines
6.5 KiB
Plaintext
/*********************************************************************************************************
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* Software License Agreement (BSD License) *
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* Author: Sebastien Decugis <sdecugis@freediameter.net> *
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* *
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* Copyright (c) 2013, WIDE Project and NICT *
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* All rights reserved. *
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* *
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* Redistribution and use of this software in source and binary forms, with or without modification, are *
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* permitted provided that the following conditions are met: *
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* *
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* * Redistributions of source code must retain the above *
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* copyright notice, this list of conditions and the *
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* following disclaimer. *
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* *
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* * Redistributions in binary form must reproduce the above *
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* copyright notice, this list of conditions and the *
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* following disclaimer in the documentation and/or other *
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* materials provided with the distribution. *
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* *
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* * Neither the name of the WIDE Project or NICT nor the *
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* names of its contributors may be used to endorse or *
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* promote products derived from this software without *
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* specific prior written permission of WIDE Project and *
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* NICT. *
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* *
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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*********************************************************************************************************/
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/* Yacc extension's configuration parser.
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* See doc/app_test.conf.sample for configuration file format
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*/
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/* For development only : */
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%debug
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%error-verbose
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/* The parser receives the configuration file filename as parameter */
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%parse-param {char * conffile}
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/* Keep track of location */
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%locations
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%pure-parser
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%{
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#include "test_app.h"
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#include "ta_conf.tab.h" /* bison is not smart enough to define the YYLTYPE before including this code, so... */
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#include <string.h>
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#include <errno.h>
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/* Forward declaration */
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int yyparse(char * conffile);
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/* Parse the configuration file */
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int ta_conf_handle(char * conffile)
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{
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extern FILE * ta_confin;
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int ret;
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TRACE_ENTRY("%p", conffile);
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TRACE_DEBUG (FULL, "Parsing configuration file: %s...", conffile);
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ta_confin = fopen(conffile, "r");
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if (ta_confin == NULL) {
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ret = errno;
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fd_log_debug("Unable to open extension configuration file %s for reading: %s", conffile, strerror(ret));
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TRACE_DEBUG (INFO, "Error occurred, message logged -- configuration file.");
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return ret;
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}
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ret = yyparse(conffile);
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fclose(ta_confin);
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if (ret != 0) {
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TRACE_DEBUG (INFO, "Unable to parse the configuration file.");
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return EINVAL;
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}
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return 0;
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}
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/* The Lex parser prototype */
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int ta_conflex(YYSTYPE *lvalp, YYLTYPE *llocp);
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/* Function to report the errors */
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void yyerror (YYLTYPE *ploc, char * conffile, char const *s)
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{
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TRACE_DEBUG(INFO, "Error in configuration parsing");
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if (ploc->first_line != ploc->last_line)
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fd_log_debug("%s:%d.%d-%d.%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_line, ploc->last_column, s);
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else if (ploc->first_column != ploc->last_column)
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fd_log_debug("%s:%d.%d-%d : %s", conffile, ploc->first_line, ploc->first_column, ploc->last_column, s);
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else
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fd_log_debug("%s:%d.%d : %s", conffile, ploc->first_line, ploc->first_column, s);
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}
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%}
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/* Values returned by lex for token */
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%union {
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char *string; /* The string is allocated by strdup in lex.*/
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int integer; /* Store integer values */
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}
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/* In case of error in the lexical analysis */
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%token LEX_ERROR
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/* Key words */
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%token VENDOR_ID
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%token APPLI_ID
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%token CMD_ID
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%token AVP_ID
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%token LONG_AVP_ID
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%token LONG_AVP_LEN
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%token MODE
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%token DEST_REALM
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%token DEST_HOST
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%token USER_NAME
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%token SIGNAL
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%token BENCH
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/* Tokens and types for routing table definition */
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/* A (de)quoted string (malloc'd in lex parser; it must be freed after use) */
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%token <string> QSTRING
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/* An integer value */
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%token <integer> INTEGER
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/* -------------------------------------- */
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%%
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/* The grammar definition */
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conffile: /* empty grammar is OK */
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| conffile vendor
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| conffile appli
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| conffile cmd
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| conffile avp
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| conffile long_avp_id
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| conffile long_avp_len
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| conffile mode
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| conffile dstrealm
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| conffile dsthost
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| conffile usrname
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| conffile signal
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| conffile bench
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;
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vendor: VENDOR_ID '=' INTEGER ';'
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{
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ta_conf->vendor_id = $3;
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}
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;
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appli: APPLI_ID '=' INTEGER ';'
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{
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ta_conf->appli_id = $3;
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}
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;
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cmd: CMD_ID '=' INTEGER ';'
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{
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ta_conf->cmd_id = $3;
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}
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;
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avp: AVP_ID '=' INTEGER ';'
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{
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ta_conf->avp_id = $3;
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}
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;
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long_avp_id: LONG_AVP_ID '=' INTEGER ';'
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{
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ta_conf->long_avp_id = $3;
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}
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;
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long_avp_len: LONG_AVP_LEN '=' INTEGER ';'
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{
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ta_conf->long_avp_len = $3;
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}
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;
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mode: MODE '=' INTEGER ';'
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{
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ta_conf->mode = $3 | (ta_conf->mode & ~3); /* overwrite the 2 lsb */
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}
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;
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bench: BENCH ';'
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{
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ta_conf->mode |= MODE_BENCH;
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}
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| BENCH INTEGER INTEGER ';'
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{
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ta_conf->mode |= MODE_BENCH;
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ta_conf->bench_duration = $2;
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ta_conf->bench_concur = $3;
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}
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;
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dstrealm: DEST_REALM '=' QSTRING ';'
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{
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free(ta_conf->dest_realm);
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ta_conf->dest_realm = $3;
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}
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;
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dsthost: DEST_HOST '=' QSTRING ';'
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{
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free(ta_conf->dest_host);
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ta_conf->dest_host = $3;
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}
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;
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usrname: USER_NAME '=' QSTRING ';'
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{
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free(ta_conf->user_name);
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ta_conf->user_name = $3;
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}
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;
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signal: SIGNAL '=' INTEGER ';'
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{
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ta_conf->signal = $3;
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}
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;
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