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      1 %{
      2 /*
      3  *
      4  *  BlueZ - Bluetooth protocol stack for Linux
      5  *
      6  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel (at) holtmann.org>
      7  *
      8  *
      9  *  This program is free software; you can redistribute it and/or modify
     10  *  it under the terms of the GNU General Public License as published by
     11  *  the Free Software Foundation; either version 2 of the License, or
     12  *  (at your option) any later version.
     13  *
     14  *  This program is distributed in the hope that it will be useful,
     15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17  *  GNU General Public License for more details.
     18  *
     19  *  You should have received a copy of the GNU General Public License
     20  *  along with this program; if not, write to the Free Software
     21  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     22  *
     23  */
     24 
     25 #ifdef HAVE_CONFIG_H
     26 #include <config.h>
     27 #endif
     28 
     29 #include <stdio.h>
     30 #include <errno.h>
     31 #include <unistd.h>
     32 #include <stdlib.h>
     33 #include <string.h>
     34 #include <sys/param.h>
     35 #include <sys/socket.h>
     36 
     37 #include <bluetooth/bluetooth.h>
     38 #include <bluetooth/rfcomm.h>
     39 
     40 #include "kword.h"
     41 
     42 int yylex(void);
     43 int yyerror(char *s);
     44 
     45 struct rfcomm_opts *opts;
     46 
     47 %}
     48 
     49 %union {
     50 	int number;
     51 	char *string;
     52 	bdaddr_t *bdaddr;
     53 }
     54 
     55 %token K_BIND K_DEVICE K_CHANNEL K_COMMENT
     56 %token K_YES K_NO
     57 
     58 %token <number> NUMBER RFCOMM
     59 %token <string> STRING WORD
     60 %token <bdaddr> BDADDR
     61 
     62 %type <number> bool
     63 
     64 %%
     65 
     66 config		:
     67 		| statement
     68 		| config statement
     69 		;
     70 
     71 statement	: section '{' rfcomm_options '}'
     72 		| rfcomm  '{' rfcomm_options '}'
     73 		| WORD
     74 			{
     75 			}
     76 		| error
     77 			{
     78 				yyclearin;
     79 				yyerrok;
     80 			}
     81 		;
     82 
     83 section		: WORD
     84 			{
     85 				opts = NULL;
     86 			}
     87 		;
     88 
     89 rfcomm		: RFCOMM
     90 			{
     91 				if (($1 >= 0) && ($1 < RFCOMM_MAX_DEV))
     92 					opts = &rfcomm_opts[$1];
     93 				else
     94 					opts = NULL;
     95 			}
     96 		;
     97 
     98 rfcomm_options	: rfcomm_option ';'
     99 		| error ';'
    100 		| rfcomm_options rfcomm_option ';'
    101 		;
    102 
    103 rfcomm_option	: K_BIND bool
    104 			{
    105 				if (opts)
    106 					opts->bind = $2;
    107 			}
    108 		| K_DEVICE BDADDR
    109 			{
    110 				if (opts)
    111 					bacpy(&opts->bdaddr, $2);
    112 			}
    113 		| K_CHANNEL NUMBER
    114 			{
    115 				if (opts)
    116 					opts->channel = $2;
    117 			}
    118 		| K_COMMENT STRING
    119 			{
    120 				if (opts)
    121 					snprintf(opts->comment, MAXCOMMENTLEN, "%s", $2);
    122 			}
    123 		| WORD
    124 			{
    125 				// Unknown option
    126 			}
    127 		;
    128 
    129 bool		: K_YES	{ $$ = 1; }
    130 		| K_NO	{ $$ = 0; }
    131 		;
    132 
    133 %%
    134 
    135 int yyerror(char *s)
    136 {
    137 	fprintf(stderr, "%s line %d\n", s, lineno);
    138 	return 0;
    139 }
    140 
    141 int rfcomm_read_config(char *filename)
    142 {
    143 	extern FILE *yyin;
    144 	char file[MAXPATHLEN + 1];
    145 	int i;
    146 
    147 	for (i = 0; i < RFCOMM_MAX_DEV; i++) {
    148 		rfcomm_opts[i].bind = 0;
    149 		bacpy(&rfcomm_opts[i].bdaddr, BDADDR_ANY);
    150 		rfcomm_opts[i].channel = 1;
    151 	}
    152 
    153 	if (filename) {
    154 		snprintf(file, MAXPATHLEN,  "%s", filename);
    155 	} else {
    156 		snprintf(file, MAXPATHLEN, "%s/.bluetooth/rfcomm.conf", getenv("HOME"));
    157 
    158 		if ((getuid() == 0) || (access(file, R_OK) < 0))
    159 			snprintf(file, MAXPATHLEN, "%s/rfcomm.conf", CONFIGDIR);
    160 	}
    161 
    162 	if (!(yyin = fopen(file, "r")))
    163 		return -1;
    164 
    165 	lineno = 1;
    166 	yyparse();
    167 
    168 	fclose(yyin);
    169 
    170 	return 0;
    171 }
    172