-
Notifications
You must be signed in to change notification settings - Fork 2
/
config.y
executable file
·290 lines (259 loc) · 5.8 KB
/
config.y
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
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
%{
#include <unistd.h>
#include <string.h>
#include <sstream>
#include <cassert>
#include <config_parser_context.h>
#define FMT(x) static_cast<std::stringstream&>(std::stringstream() << x).str()
#define FMT_C(x) FMT(x).c_str()
#define SCANNER context->scanner()
%}
%define api.pure
%locations
%name-prefix "config"
%parse-param {config_parser_context* context}
%parse-param {proxychains_config* config}
%lex-param {yyscan_t SCANNER}
/* sections */
%token ID_GLOBAL
%token ID_CHAIN
/* parameters */
%token ID_PROXY_DNS;
%token ID_TRACE
%token ID_OFF
%token ID_STDOUT
%token ID_STDERR
%token ID_TTY_ONLY
%token ID_CHAIN_TYPE;
%token ID_CHAIN_LEN;
%token ID_TCP_READ_TIMEOUT;
%token ID_TCP_CONNECT_TIMEOUT;
%token ID_DEFAULT_FILTER_ACTION;
%token ID_PROXY;
%token ID_FILTER;
%token ID_ANY;
/* types */
%token <i> INT
%token <b> BOOLEAN
%token <in> IP_ADDR
%token <na> NET_ADDR
%token <naf> NET_ADDR_FILTER
%token <p> PORT
%token <s> STRING
%token <ct> CHAIN_TYPE
%token <pt> PROXY_TYPE
%token <fa> FILTER_ACTION
/* non-terminals */
%type <naf> net_addr_filter
/* destructors */
%destructor { free($$); } STRING
%%
config:
sections
;
sections:
/* empty */
| sections section
;
section:
global_head global_body
| chain_head chain_body
;
global_head:
'[' ID_GLOBAL ']'
;
global_body:
global_params
;
global_params:
/* empty */
| global_params global_param
;
global_param:
ID_TRACE ID_OFF
{
config->resetTrace();
}
| ID_TRACE ID_STDOUT
{
config->setTrace(&std::cout);
}
| ID_TRACE ID_TTY_ONLY ID_STDOUT
{
if(isatty(STDOUT_FILENO))
{
config->setTrace(&std::cout);
}
else
{
config->resetTrace();
}
}
| ID_TRACE ID_STDERR
{
config->setTrace(&std::cerr);
}
| ID_TRACE ID_TTY_ONLY ID_STDERR
{
if(isatty(STDERR_FILENO))
{
config->setTrace(&std::cerr);
}
else
{
config->resetTrace();
}
}
| ID_TRACE STRING
{
config->setTrace($2, false);
}
| ID_TRACE ID_TTY_ONLY STRING
{
config->setTrace($3, true);
}
| ID_PROXY_DNS BOOLEAN
{
config->proxy_dns = $2;
}
| ID_CHAIN_TYPE CHAIN_TYPE
{
config->type = $2;
}
| ID_CHAIN_LEN INT
{
config->chain_len = $2;
}
| ID_TCP_CONNECT_TIMEOUT INT
{
config->tcp_connect_timeout = $2;
}
| ID_TCP_READ_TIMEOUT INT
{
config->tcp_read_timeout = $2;
}
| ID_DEFAULT_FILTER_ACTION FILTER_ACTION
{
config->default_filter_action = $2;
}
;
chain_head:
'[' ID_CHAIN STRING ']'
{
config->chains.push_back(proxy_chain(
$3,
config->type,
config->chain_len,
config->tcp_connect_timeout,
config->tcp_read_timeout,
config->default_filter_action
));
}
| '[' ID_CHAIN ']'
{
config->chains.push_back(proxy_chain(
FMT_C("chain_" << (config->chains.size() + 1)),
config->type,
config->chain_len,
config->tcp_connect_timeout,
config->tcp_read_timeout,
config->default_filter_action
));
}
;
chain_body:
chain_params
;
chain_params:
/* empty */
| chain_params chain_param
;
chain_param:
ID_CHAIN_TYPE CHAIN_TYPE
{
config->chains.back().type = $2;
}
| ID_CHAIN_LEN INT
{
config->chains.back().chain_len = $2;
}
| ID_TCP_CONNECT_TIMEOUT INT
{
config->chains.back().tcp_connect_timeout = $2;
}
| ID_TCP_READ_TIMEOUT INT
{
config->chains.back().tcp_read_timeout = $2;
}
| ID_DEFAULT_FILTER_ACTION FILTER_ACTION
{
config->chains.back().default_filter_action = $2;
}
| ID_PROXY PROXY_TYPE NET_ADDR STRING STRING
{
config->chains.back().proxies.push_back(proxy_data(
$2,
$3,
$4,
$5
));
}
| ID_PROXY PROXY_TYPE NET_ADDR
{
config->chains.back().proxies.push_back(proxy_data(
$2,
$3
));
}
| ID_FILTER FILTER_ACTION
{
context->m_currentFilterAction = $2;
}
net_addr_filters
{
context->m_currentFilterAction = (filter_action)-1;
}
;
net_addr_filters:
net_addr_filter
{
assert(context->m_currentFilterAction != -1);
config->chains.back().filters.push_back(net_filter(context->m_currentFilterAction, $1));
}
| net_addr_filters net_addr_filter
{
assert(context->m_currentFilterAction != -1);
config->chains.back().filters.push_back(net_filter(context->m_currentFilterAction, $2));
}
;
net_addr_filter:
IP_ADDR
{
$$.ip = $1;
$$.net_mask_width = 32;
$$.port = 0;
}
| NET_ADDR
{
$$.ip = $1.ip;
$$.net_mask_width = 32;
$$.port = $1.port;
}
| NET_ADDR_FILTER
{
$$ = $1;
}
| PORT
{
$$.ip.s_addr = 0;
$$.net_mask_width = 0;
$$.port = $1;
}
| ID_ANY
{
$$.ip.s_addr = 0;
$$.net_mask_width = 0;
$$.port = 0;
}
;
%%