xref: /freebsd/sbin/devd/parse.y (revision faf25f48d601ae39f5752602f3020e2e92605625)
1 %{
2 /*-
3  * DEVD (Device action daemon)
4  *
5  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
6  *
7  * Copyright (c) 2002 M. Warner Losh <imp@FreeBSD.org>
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #include <sys/cdefs.h>
34 #include "devd.h"
35 #include <stdio.h>
36 #include <string.h>
37 
38 %}
39 
40 %union {
41 	char *str;
42 	int i;
43 	struct eps *eps;	/* EventProcStatement */
44 	struct event_proc *eventproc;
45 }
46 
47 %token SEMICOLON BEGINBLOCK ENDBLOCK COMMA
48 %token <i> NUMBER
49 %token <str> STRING
50 %token <str> ID
51 %token OPTIONS SET DIRECTORY PID_FILE DEVICE_NAME ACTION MATCH
52 %token ATTACH DETACH NOMATCH NOTIFY MEDIA_TYPE CLASS SUBDEVICE
53 
54 %type <eventproc> match_or_action_list
55 %type <eps> match_or_action match action
56 
57 %%
58 
59 config_file
60 	: config_list
61 	|
62 	;
63 
64 config_list
65 	: config
66 	| config_list config
67 	;
68 
69 config
70 	: option_block
71 	| attach_block
72 	| detach_block
73 	| nomatch_block
74 	| notify_block
75 	;
76 
77 option_block
78 	: OPTIONS BEGINBLOCK options ENDBLOCK SEMICOLON
79 	;
80 
81 options
82 	: option
83 	| options option
84 
85 option
86 	: directory_option
87 	| pid_file_option
88 	| set_option
89 	;
90 
91 directory_option
92 	: DIRECTORY STRING SEMICOLON { add_directory($2); }
93 	;
94 
95 pid_file_option
96 	: PID_FILE STRING SEMICOLON { set_pidfile($2); }
97 	;
98 
99 set_option
100 	: SET ID STRING SEMICOLON { set_variable($2, $3); }
101 	;
102 
103 attach_block
104 	: ATTACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
105 		{ add_attach($2, $4); }
106 	| ATTACH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
107 	;
108 
109 detach_block
110 	: DETACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
111 		{ add_detach($2, $4); }
112 	| DETACH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
113 	;
114 
115 nomatch_block
116 	: NOMATCH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
117 		{ add_nomatch($2, $4); }
118 	| NOMATCH NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
119 	;
120 
121 notify_block
122 	: NOTIFY NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
123 		{ add_notify($2, $4); }
124 	| NOTIFY NUMBER BEGINBLOCK ENDBLOCK SEMICOLON
125 	;
126 
127 match_or_action_list
128 	: match_or_action { $$ = add_to_event_proc( NULL, $1); }
129 	| match_or_action_list match_or_action
130 			{ $$ = add_to_event_proc($1, $2); }
131 	;
132 
133 match_or_action
134 	: match
135 	| action
136 	;
137 
138 match
139 	: MATCH STRING STRING SEMICOLON	{ $$ = new_match($2, $3); }
140 	| DEVICE_NAME STRING SEMICOLON
141 		{ $$ = new_match(strdup("device-name"), $2); }
142 	| MEDIA_TYPE STRING SEMICOLON
143 		{ $$ = new_media(strdup("media-type"), $2); }
144 	| CLASS STRING SEMICOLON
145 		{ $$ = new_match(strdup("class"), $2); }
146 	| SUBDEVICE STRING SEMICOLON
147 		{ $$ = new_match(strdup("subdevice"), $2); }
148 	;
149 
150 action
151 	: ACTION STRING SEMICOLON	{ $$ = new_action($2); }
152 	;
153 
154 %%
155