sbin/devd/parse.y

   1 %{
   2 /*-
   3  * DEVD (Device action daemon)
   4  *
   5  * Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD: head/sbin/devd/parse.y 235789 2012-05-22 16:33:10Z bapt $
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #include "devd.h"
  34 #include <stdio.h>
  35 #include <string.h>
  36
  37 %}
  38
  39 %union {
  40         char *str;
  41         int i;
  42         struct eps *eps;        /* EventProcStatement */
  43         struct event_proc *eventproc;
  44 }
  45
  46 %token SEMICOLON BEGINBLOCK ENDBLOCK COMMA
  47 %token <i> NUMBER
  48 %token <str> STRING
  49 %token <str> ID
  50 %token OPTIONS SET DIRECTORY PID_FILE DEVICE_NAME ACTION MATCH
  51 %token ATTACH DETACH NOMATCH NOTIFY MEDIA_TYPE CLASS SUBDEVICE
  52
  53 %type <eventproc> match_or_action_list
  54 %type <eps> match_or_action match action
  55
  56 %%
  57
  58 config_file
  59         : config_list
  60         |
  61         ;
  62
  63 config_list
  64         : config
  65         | config_list config
  66         ;
  67
  68 config
  69         : option_block
  70         | attach_block
  71         | detach_block
  72         | nomatch_block
  73         | notify_block
  74         ;
  75
  76 option_block
  77         : OPTIONS BEGINBLOCK options ENDBLOCK SEMICOLON
  78         ;
  79
  80 options
  81         : option
  82         | options option
  83
  84 option
  85         : directory_option
  86         | pid_file_option
  87         | set_option
  88         ;
  89
  90 directory_option
  91         : DIRECTORY STRING SEMICOLON { add_directory($2); }
  92         ;
  93
  94 pid_file_option
  95         : PID_FILE STRING SEMICOLON { set_pidfile($2); }
  96         ;
  97
  98 set_option
  99         : SET ID STRING SEMICOLON { set_variable($2, $3); }
 100         ;
 101
 102 attach_block
 103         : ATTACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
 104                 { add_attach($2, $4); }
 105         | ATTACH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
 106         ;
 107
 108 detach_block
 109         : DETACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
 110                 { add_detach($2, $4); }
 111         | DETACH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
 112         ;
 113
 114 nomatch_block
 115         : NOMATCH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
 116                 { add_nomatch($2, $4); }
 117         | NOMATCH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
 118         ;
 119
 120 notify_block
 121         : NOTIFY NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
 122                 { add_notify($2, $4); }
 123         | NOTIFY NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
 124         ;
 125
 126 match_or_action_list
 127         : match_or_action { $$ = add_to_event_proc( NULL, $1); }
 128         | match_or_action_list match_or_action
 129                         { $$ = add_to_event_proc($1, $2); }
 130         ;
 131
 132 match_or_action
 133         : match
 134         | action
 135         ;
 136
 137 match
 138         : MATCH STRING STRING SEMICOLON { $$ = new_match($2, $3); }
 139         | DEVICE_NAME STRING SEMICOLON
 140                 { $$ = new_match(strdup("device-name"), $2); }
 141         | MEDIA_TYPE STRING SEMICOLON
 142                 { $$ = new_media(strdup("media-type"), $2); }
 143         | CLASS STRING SEMICOLON
 144                 { $$ = new_match(strdup("class"), $2); }
 145         | SUBDEVICE STRING SEMICOLON
 146                 { $$ = new_match(strdup("subdevice"), $2); }
 147         ;
 148
 149 action
 150         : ACTION STRING SEMICOLON       { $$ = new_action($2); }
 151         ;
 152
 153 %%