1%{
2/*-
3 * Copyright (c) 2011 James Gritton
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
| 1%{
2/*-
3 * Copyright (c) 2011 James Gritton
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
|
29__FBSDID("$FreeBSD: head/usr.sbin/jail/jailparse.y 234712 2012-04-26 17:36:05Z jamie $");
| 29__FBSDID("$FreeBSD: head/usr.sbin/jail/jailparse.y 289677 2015-10-21 05:37:09Z eadler $");
|
30
31#include <stdlib.h>
32#include <string.h>
33
34#include "jailp.h"
35
36#ifdef DEBUG
37#define YYDEBUG 1
38#endif
39%}
40
41%union {
42 struct cfjail *j;
43 struct cfparams *pp;
44 struct cfparam *p;
45 struct cfstrings *ss;
46 struct cfstring *s;
47 char *cs;
48}
49
50%token PLEQ
51%token <cs> STR STR1 VAR VAR1
52
53%type <j> jail
54%type <pp> param_l
55%type <p> param name
56%type <ss> value
57%type <s> string
58
59%%
60
61/*
62 * A config file is a series of jails (containing parameters) and jail-less
63 * parameters which realy belong to a global pseudo-jail.
64 */
65conf :
66 ;
67 | conf jail
68 ;
69 | conf param ';'
70 {
71 struct cfjail *j;
72
73 j = TAILQ_LAST(&cfjails, cfjails);
74 if (!j || strcmp(j->name, "*")) {
75 j = add_jail();
76 j->name = estrdup("*");
77 }
78 TAILQ_INSERT_TAIL(&j->params, $2, tq);
79 }
80 | conf ';'
81
82jail : STR '{' param_l '}'
83 {
84 $$ = add_jail();
85 $$->name = $1;
86 TAILQ_CONCAT(&$$->params, $3, tq);
87 free($3);
88 }
89 ;
90
91param_l :
92 {
93 $$ = emalloc(sizeof(struct cfparams));
94 TAILQ_INIT($$);
95 }
96 | param_l param ';'
97 {
98 $$ = $1;
99 TAILQ_INSERT_TAIL($$, $2, tq);
100 }
101 | param_l ';'
102 ;
103
104/*
105 * Parameters have a name and an optional list of value strings,
| 30
31#include <stdlib.h>
32#include <string.h>
33
34#include "jailp.h"
35
36#ifdef DEBUG
37#define YYDEBUG 1
38#endif
39%}
40
41%union {
42 struct cfjail *j;
43 struct cfparams *pp;
44 struct cfparam *p;
45 struct cfstrings *ss;
46 struct cfstring *s;
47 char *cs;
48}
49
50%token PLEQ
51%token <cs> STR STR1 VAR VAR1
52
53%type <j> jail
54%type <pp> param_l
55%type <p> param name
56%type <ss> value
57%type <s> string
58
59%%
60
61/*
62 * A config file is a series of jails (containing parameters) and jail-less
63 * parameters which realy belong to a global pseudo-jail.
64 */
65conf :
66 ;
67 | conf jail
68 ;
69 | conf param ';'
70 {
71 struct cfjail *j;
72
73 j = TAILQ_LAST(&cfjails, cfjails);
74 if (!j || strcmp(j->name, "*")) {
75 j = add_jail();
76 j->name = estrdup("*");
77 }
78 TAILQ_INSERT_TAIL(&j->params, $2, tq);
79 }
80 | conf ';'
81
82jail : STR '{' param_l '}'
83 {
84 $$ = add_jail();
85 $$->name = $1;
86 TAILQ_CONCAT(&$$->params, $3, tq);
87 free($3);
88 }
89 ;
90
91param_l :
92 {
93 $$ = emalloc(sizeof(struct cfparams));
94 TAILQ_INIT($$);
95 }
96 | param_l param ';'
97 {
98 $$ = $1;
99 TAILQ_INSERT_TAIL($$, $2, tq);
100 }
101 | param_l ';'
102 ;
103
104/*
105 * Parameters have a name and an optional list of value strings,
|
106 * which may have "+=" or "=" preceeding them.
| 106 * which may have "+=" or "=" preceding them.
|
107 */
108param : name
109 {
110 $$ = $1;
111 }
112 | name '=' value
113 {
114 $$ = $1;
115 TAILQ_CONCAT(&$$->val, $3, tq);
116 free($3);
117 }
118 | name PLEQ value
119 {
120 $$ = $1;
121 TAILQ_CONCAT(&$$->val, $3, tq);
122 $$->flags |= PF_APPEND;
123 free($3);
124 }
125 | name value
126 {
127 $$ = $1;
128 TAILQ_CONCAT(&$$->val, $2, tq);
129 free($2);
130 }
131 | error
132 {
133 }
134 ;
135
136/*
137 * A parameter has a fixed name. A variable definition looks just like a
138 * parameter except that the name is a variable.
139 */
140name : STR
141 {
142 $$ = emalloc(sizeof(struct cfparam));
143 $$->name = $1;
144 TAILQ_INIT(&$$->val);
145 $$->flags = 0;
146 }
147 | VAR
148 {
149 $$ = emalloc(sizeof(struct cfparam));
150 $$->name = $1;
151 TAILQ_INIT(&$$->val);
152 $$->flags = PF_VAR;
153 }
154 ;
155
156value : string
157 {
158 $$ = emalloc(sizeof(struct cfstrings));
159 TAILQ_INIT($$);
160 TAILQ_INSERT_TAIL($$, $1, tq);
161 }
162 | value ',' string
163 {
164 $$ = $1;
165 TAILQ_INSERT_TAIL($$, $3, tq);
166 }
167 ;
168
169/*
170 * Strings may be passed in pieces, because of quoting and/or variable
171 * interpolation. Reassemble them into a single string.
172 */
173string : STR
174 {
175 $$ = emalloc(sizeof(struct cfstring));
176 $$->s = $1;
177 $$->len = strlen($1);
178 STAILQ_INIT(&$$->vars);
179 }
180 | VAR
181 {
182 struct cfvar *v;
183
184 $$ = emalloc(sizeof(struct cfstring));
185 $$->s = estrdup("");
186 $$->len = 0;
187 STAILQ_INIT(&$$->vars);
188 v = emalloc(sizeof(struct cfvar));
189 v->name = $1;
190 v->pos = 0;
191 STAILQ_INSERT_TAIL(&$$->vars, v, tq);
192 }
193 | string STR1
194 {
195 size_t len1;
196
197 $$ = $1;
198 len1 = strlen($2);
199 $$->s = erealloc($$->s, $$->len + len1 + 1);
200 strcpy($$->s + $$->len, $2);
201 free($2);
202 $$->len += len1;
203 }
204 | string VAR1
205 {
206 struct cfvar *v;
207
208 $$ = $1;
209 v = emalloc(sizeof(struct cfvar));
210 v->name = $2;
211 v->pos = $$->len;
212 STAILQ_INSERT_TAIL(&$$->vars, v, tq);
213 }
214 ;
215
216%%
| 107 */
108param : name
109 {
110 $$ = $1;
111 }
112 | name '=' value
113 {
114 $$ = $1;
115 TAILQ_CONCAT(&$$->val, $3, tq);
116 free($3);
117 }
118 | name PLEQ value
119 {
120 $$ = $1;
121 TAILQ_CONCAT(&$$->val, $3, tq);
122 $$->flags |= PF_APPEND;
123 free($3);
124 }
125 | name value
126 {
127 $$ = $1;
128 TAILQ_CONCAT(&$$->val, $2, tq);
129 free($2);
130 }
131 | error
132 {
133 }
134 ;
135
136/*
137 * A parameter has a fixed name. A variable definition looks just like a
138 * parameter except that the name is a variable.
139 */
140name : STR
141 {
142 $$ = emalloc(sizeof(struct cfparam));
143 $$->name = $1;
144 TAILQ_INIT(&$$->val);
145 $$->flags = 0;
146 }
147 | VAR
148 {
149 $$ = emalloc(sizeof(struct cfparam));
150 $$->name = $1;
151 TAILQ_INIT(&$$->val);
152 $$->flags = PF_VAR;
153 }
154 ;
155
156value : string
157 {
158 $$ = emalloc(sizeof(struct cfstrings));
159 TAILQ_INIT($$);
160 TAILQ_INSERT_TAIL($$, $1, tq);
161 }
162 | value ',' string
163 {
164 $$ = $1;
165 TAILQ_INSERT_TAIL($$, $3, tq);
166 }
167 ;
168
169/*
170 * Strings may be passed in pieces, because of quoting and/or variable
171 * interpolation. Reassemble them into a single string.
172 */
173string : STR
174 {
175 $$ = emalloc(sizeof(struct cfstring));
176 $$->s = $1;
177 $$->len = strlen($1);
178 STAILQ_INIT(&$$->vars);
179 }
180 | VAR
181 {
182 struct cfvar *v;
183
184 $$ = emalloc(sizeof(struct cfstring));
185 $$->s = estrdup("");
186 $$->len = 0;
187 STAILQ_INIT(&$$->vars);
188 v = emalloc(sizeof(struct cfvar));
189 v->name = $1;
190 v->pos = 0;
191 STAILQ_INSERT_TAIL(&$$->vars, v, tq);
192 }
193 | string STR1
194 {
195 size_t len1;
196
197 $$ = $1;
198 len1 = strlen($2);
199 $$->s = erealloc($$->s, $$->len + len1 + 1);
200 strcpy($$->s + $$->len, $2);
201 free($2);
202 $$->len += len1;
203 }
204 | string VAR1
205 {
206 struct cfvar *v;
207
208 $$ = $1;
209 v = emalloc(sizeof(struct cfvar));
210 v->name = $2;
211 v->pos = $$->len;
212 STAILQ_INSERT_TAIL(&$$->vars, v, tq);
213 }
214 ;
215
216%%
|