1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
/* $Id: grammar.y,v 1.22 2003-06-20 17:02:13 rjkaes Exp $
*
* This is the grammar for tinyproxy's configuration file. It needs to be
* in sync with scanner.l. If you know more about yacc and lex than I do
* please update these files.
*
* Copyright (C) 2000 Robert James Kaes (rjkaes@flarenet.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
%{
#include "tinyproxy.h"
#include "acl.h"
#include "anonymous.h"
#include "child.h"
#include "filter.h"
#include "htmlerror.h"
#include "log.h"
#include "reqs.h"
void yyerror(char *s);
int yylex(void);
%}
%union {
unsigned int num;
char *cptr;
void *ptr;
}
/* statements */
%token KW_PORT KW_LISTEN
%token KW_LOGFILE KW_PIDFILE KW_SYSLOG
%token KW_MAXCLIENTS KW_MAXSPARESERVERS KW_MINSPARESERVERS KW_STARTSERVERS
%token KW_MAXREQUESTSPERCHILD
%token KW_TIMEOUT
%token KW_USER KW_GROUP
%token KW_ANONYMOUS KW_XTINYPROXY
%token KW_FILTER KW_FILTERURLS KW_FILTEREXTENDED KW_FILTER_DEFAULT_DENY
%token KW_FILTER_CASESENSITIVE
%token KW_UPSTREAM
%token KW_CONNECTPORT KW_BIND
%token KW_STATHOST
%token KW_ALLOW KW_DENY
%token KW_ERRORPAGE KW_DEFAULT_ERRORPAGE
%token KW_STATPAGE
%token KW_VIA_PROXY_NAME
/* yes/no switches */
%token KW_YES KW_NO
/* settings for loglevel */
%token KW_LOGLEVEL
%token KW_LOG_CRITICAL KW_LOG_ERROR KW_LOG_WARNING KW_LOG_NOTICE KW_LOG_CONNECT KW_LOG_INFO
%token <cptr> IDENTIFIER
%token <num> NUMBER
%token <cptr> STRING
%token <cptr> NUMERIC_ADDRESS
%token <cptr> STRING_ADDRESS
%token <cptr> NETMASK_ADDRESS
%type <num> yesno
%type <cptr> string
%type <cptr> network_address
%type <cptr> unique_address
%type <num> loglevels
%%
start
: /* empty */
| start line
;
line
: '\n'
| statement '\n'
;
statement
: KW_PORT NUMBER { config.port = $2; }
| KW_TIMEOUT NUMBER { config.idletimeout = $2; }
| KW_SYSLOG yesno
{
#ifdef HAVE_SYSLOG_H
config.syslog = $2;
#else
log_message(LOG_WARNING, "Syslog support was not compiled in.");
#endif
}
| KW_MAXCLIENTS NUMBER { child_configure(CHILD_MAXCLIENTS, $2); }
| KW_MAXSPARESERVERS NUMBER { child_configure(CHILD_MAXSPARESERVERS, $2); }
| KW_MINSPARESERVERS NUMBER { child_configure(CHILD_MINSPARESERVERS, $2); }
| KW_STARTSERVERS NUMBER { child_configure(CHILD_STARTSERVERS, $2); }
| KW_MAXREQUESTSPERCHILD NUMBER { child_configure(CHILD_MAXREQUESTSPERCHILD, $2); }
| KW_LOGFILE string
{
config.logf_name = $2;
if (!config.logf_name) {
fprintf(stderr, "bad log file\n");
}
}
| KW_PIDFILE string { config.pidpath = $2; }
| KW_USER string { config.username = $2; }
| KW_GROUP string { config.group = $2; }
| KW_ANONYMOUS string { anonymous_insert($2); }
| KW_ERRORPAGE NUMBER string { add_new_errorpage($3, $2); }
| KW_DEFAULT_ERRORPAGE string { config.errorpage_undef = $2; }
| KW_STATPAGE string { config.statpage = $2; }
| KW_FILTER string
{
#ifdef FILTER_ENABLE
config.filter = $2;
#else
log_message(LOG_WARNING, "Filter support was not compiled in.");
#endif
}
| KW_FILTERURLS yesno
{
#ifdef FILTER_ENABLE
config.filter_url = $2;
#else
log_message(LOG_WARNING, "Filter support wss not compiled in.");
#endif
}
| KW_FILTEREXTENDED yesno
{
#ifdef FILTER_ENABLE
config.filter_extended = $2;
#else
log_message(LOG_WARNING, "Filter support was not compiled in.");
#endif
}
| KW_FILTER_CASESENSITIVE yesno
{
#ifdef FILTER_ENABLE
config.filter_casesensitive = $2;
#else
log_message(LOG_WARNING, "Filter support was not compiled in.");
#endif
}
| KW_FILTER_DEFAULT_DENY yesno
{
#ifdef FILTER_ENABLE
if ($2)
filter_set_default_policy(FILTER_DEFAULT_DENY);
#else
log_message(LOG_WARNING, "FIlter support was not compiled in.");
#endif
}
| KW_XTINYPROXY network_address
{
#ifdef XTINYPROXY_ENABLE
config.my_domain = $2;
#else
log_message(LOG_WARNING, "X-Tinyproxy header support was not compiled in.");
#endif
}
| KW_UPSTREAM unique_address ':' NUMBER
{
#ifdef UPSTREAM_SUPPORT
upstream_add($2, $4, NULL);
#else
log_message(LOG_WARNING, "Upstream proxy support was not compiled in.");
#endif
}
| KW_UPSTREAM unique_address ':' NUMBER STRING
{
#ifdef UPSTREAM_SUPPORT
upstream_add($2, $4, $5);
#else
log_message(LOG_WARNING, "Upstream proxy support was not compiled in.");
#endif
}
| KW_NO KW_UPSTREAM STRING
{
#ifdef UPSTREAM_SUPPORT
upstream_add(NULL, 0, $3);
#else
log_message(LOG_WARNING, "Upstream proxy support was not compiled in.");
#endif
}
| KW_LISTEN NUMERIC_ADDRESS
{
log_message(LOG_INFO, "Establishing listening socket on IP %s", $2);
config.ipAddr = $2;
}
| KW_ALLOW network_address { insert_acl($2, ACL_ALLOW); }
| KW_DENY network_address { insert_acl($2, ACL_DENY); }
| KW_LOGLEVEL loglevels { set_log_level($2); }
| KW_CONNECTPORT NUMBER { add_connect_port_allowed($2); }
| KW_BIND NUMERIC_ADDRESS
{
#ifndef TRANSPARENT_PROXY
log_message(LOG_INFO, "Binding outgoing connections to %s", $2);
config.bind_address = $2;
#else
log_message(LOG_WARNING, "The 'Bind' directive can not be used with transparent proxy support. Ignoring the directive.");
#endif
}
| KW_VIA_PROXY_NAME string
{
log_message(LOG_INFO, "Setting \"Via\" proxy name to: %s", $2);
config.via_proxy_name = $2;
}
| KW_STATHOST string
{
log_message(LOG_INFO, "Stathost is set to \"%s\"", $2);
config.stathost = $2;
}
;
loglevels
: KW_LOG_CRITICAL { $$ = LOG_CRIT; }
| KW_LOG_ERROR { $$ = LOG_ERR; }
| KW_LOG_WARNING { $$ = LOG_WARNING; }
| KW_LOG_NOTICE { $$ = LOG_NOTICE; }
| KW_LOG_CONNECT { $$ = LOG_CONN; }
| KW_LOG_INFO { $$ = LOG_INFO; }
;
network_address
: unique_address
| NETMASK_ADDRESS
;
unique_address
: STRING_ADDRESS
| NUMERIC_ADDRESS
;
yesno
: KW_YES { $$ = 1; }
| KW_NO { $$ = 0; }
| NUMBER { $$ = $1; }
;
string
: IDENTIFIER
| STRING
;
%%
extern unsigned int scanner_lineno;
void
yyerror(char *s)
{
static int headerdisplayed = 0;
if (!headerdisplayed) {
fprintf(stderr, "Errors in configuration file:\n");
headerdisplayed = 1;
}
fprintf(stderr, "\t%s:%d: %s\n", config.config_file, scanner_lineno, s);
exit(EXIT_FAILURE);
}
|
