1 |
/* |
2 |
* Boa, an http server |
3 |
* Copyright (C) 1999 Larry Doolittle <ldoolitt@boa.org> |
4 |
* |
5 |
* This program is free software; you can redistribute it and/or modify |
6 |
* it under the terms of the GNU General Public License as published by |
7 |
* the Free Software Foundation; either version 1, or (at your option) |
8 |
* any later version. |
9 |
* |
10 |
* This program is distributed in the hope that it will be useful, |
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 |
* GNU General Public License for more details. |
14 |
* |
15 |
* You should have received a copy of the GNU General Public License |
16 |
* along with this program; if not, write to the Free Software |
17 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 |
* |
19 |
*/ |
20 |
|
21 |
/* $Id: config.c,v 1.31.2.3 2002/07/26 03:04:29 jnelson Exp $*/ |
22 |
|
23 |
#include "boa.h" |
24 |
#include "y.tab.h" |
25 |
#include "parse.h" |
26 |
|
27 |
int yyparse(void); /* Better match the output of lex */ |
28 |
|
29 |
#ifdef DEBUG |
30 |
#define DBG(x) x |
31 |
#else |
32 |
#define DBG(x) |
33 |
#endif |
34 |
|
35 |
int server_port; |
36 |
uid_t server_uid; |
37 |
gid_t server_gid; |
38 |
char *server_root; |
39 |
char *server_name; |
40 |
char *server_admin; |
41 |
char *server_ip; |
42 |
int virtualhost; |
43 |
long int max_connections; |
44 |
|
45 |
int server_max_threads = 1; |
46 |
|
47 |
char *server_cert; |
48 |
char *server_key; |
49 |
int ssl_session_cache; |
50 |
int boa_ssl = 0; |
51 |
int ssl_port = 443; |
52 |
int ssl_dh_bits = 1024; /* default value */ |
53 |
int ssl_session_timeout = 3600; |
54 |
int ssl_params_refresh = 432000; /* every 5 days */ |
55 |
|
56 |
char *ssl_ciphers = NULL; |
57 |
char *ssl_mac = NULL; |
58 |
char *ssl_kx = NULL; |
59 |
char *ssl_comp = NULL; |
60 |
char *ssl_protocol = NULL; |
61 |
|
62 |
char *document_root; |
63 |
char *user_dir; |
64 |
char *directory_index; |
65 |
char *default_type; |
66 |
char *dirmaker; |
67 |
char *cachedir; |
68 |
|
69 |
char *tempdir; |
70 |
|
71 |
char *cgi_path = NULL; |
72 |
int single_post_limit = SINGLE_POST_LIMIT_DEFAULT; |
73 |
|
74 |
int ka_timeout; |
75 |
int ka_max; |
76 |
|
77 |
/* These came from log.c */ |
78 |
char *error_log_name; |
79 |
char *access_log_name; |
80 |
char *cgi_log_name; |
81 |
|
82 |
int use_localtime; |
83 |
|
84 |
/* These are new */ |
85 |
static void c_set_user(char *v1, char *v2, void *t); |
86 |
static void c_set_group(char *v1, char *v2, void *t); |
87 |
static void c_set_string(char *v1, char *v2, void *t); |
88 |
static void c_set_int(char *v1, char *v2, void *t); |
89 |
static void c_set_unity(char *v1, char *v2, void *t); |
90 |
static void c_add_type(char *v1, char *v2, void *t); |
91 |
static void c_add_alias(char *v1, char *v2, void *t); |
92 |
|
93 |
/* Fakery to keep the value passed to action() a void *, |
94 |
see usage in table and c_add_alias() below */ |
95 |
static int script_number = SCRIPTALIAS; |
96 |
static int redirect_number = REDIRECT; |
97 |
static int alias_number = ALIAS; |
98 |
static uid_t current_uid=0; |
99 |
|
100 |
/* Help keep the table below compact */ |
101 |
#define S0A STMT_NO_ARGS |
102 |
#define S1A STMT_ONE_ARG |
103 |
#define S2A STMT_TWO_ARGS |
104 |
|
105 |
struct ccommand clist[] = { |
106 |
{"SSLCiphers", S1A, c_set_string, &ssl_ciphers}, |
107 |
{"SSLKeyExchangeAlgorithms", S1A, c_set_string, &ssl_kx}, |
108 |
{"SSLMACAlgorithms", S1A, c_set_string, &ssl_mac}, |
109 |
{"SSLProtocols", S1A, c_set_string, &ssl_protocol}, |
110 |
{"SSLCompressionMethods", S1A, c_set_string, &ssl_comp}, |
111 |
{"SSLCertificate", S1A, c_set_string, &server_cert}, |
112 |
{"SSLKey", S1A, c_set_string, &server_key}, |
113 |
{"SSLSessionCache", S1A, c_set_int, &ssl_session_cache}, |
114 |
{"SSL", S1A, c_set_int, &boa_ssl}, |
115 |
{"SSLPort", S1A, c_set_int, &ssl_port}, |
116 |
{"SSLDHBits", S1A, c_set_int, &ssl_dh_bits}, |
117 |
{"SSLSessionTimeout", S1A, c_set_int, &ssl_session_timeout}, |
118 |
{"SSLParamsRefresh", S1A, c_set_int, &ssl_params_refresh}, |
119 |
{"Threads", S1A, c_set_int, &server_max_threads}, |
120 |
{"Port", S1A, c_set_int, &server_port}, |
121 |
{"Listen", S1A, c_set_string, &server_ip}, |
122 |
{"BackLog", S1A, c_set_int, &backlog}, |
123 |
{"User", S1A, c_set_user, NULL}, |
124 |
{"Group", S1A, c_set_group, NULL}, |
125 |
{"ServerAdmin", S1A, c_set_string, &server_admin}, |
126 |
{"ServerRoot", S1A, c_set_string, &server_root}, |
127 |
{"ErrorLog", S1A, c_set_string, &error_log_name}, |
128 |
{"AccessLog", S1A, c_set_string, &access_log_name}, |
129 |
{"UseLocaltime", S0A, c_set_unity, &use_localtime}, |
130 |
{"CgiLog", S1A, c_set_string, &cgi_log_name}, |
131 |
{"VerboseCGILogs", S0A, c_set_unity, &verbose_cgi_logs}, |
132 |
{"ServerName", S1A, c_set_string, &server_name}, |
133 |
{"VirtualHost", S0A, c_set_unity, &virtualhost}, |
134 |
{"DocumentRoot", S1A, c_set_string, &document_root}, |
135 |
{"UserDir", S1A, c_set_string, &user_dir}, |
136 |
{"DirectoryIndex", S1A, c_set_string, &directory_index}, |
137 |
{"DirectoryMaker", S1A, c_set_string, &dirmaker}, |
138 |
{"DirectoryCache", S1A, c_set_string, &cachedir}, |
139 |
{"KeepAliveMax", S1A, c_set_int, &ka_max}, |
140 |
{"KeepAliveTimeout", S1A, c_set_int, &ka_timeout}, |
141 |
{"MimeTypes", S1A, c_set_string, &mime_types}, |
142 |
{"DefaultType", S1A, c_set_string, &default_type}, |
143 |
{"AddType", S2A, c_add_type, NULL}, |
144 |
{"ScriptAlias", S2A, c_add_alias, &script_number}, |
145 |
{"Redirect", S2A, c_add_alias, &redirect_number}, |
146 |
{"Alias", S2A, c_add_alias, &alias_number}, |
147 |
{"SinglePostLimit", S1A, c_set_int, &single_post_limit}, |
148 |
{"CGIPath", S1A, c_set_string, &cgi_path}, |
149 |
{"MaxConnections", S1A, c_set_int, &max_connections}, |
150 |
}; |
151 |
|
152 |
static void c_set_user(char *v1, char *v2, void *t) |
153 |
{ |
154 |
struct passwd *passwdbuf; |
155 |
char *endptr; |
156 |
int i; |
157 |
|
158 |
DBG(printf("User %s = ", v1); |
159 |
) |
160 |
i = strtol(v1, &endptr, 0); |
161 |
if (*v1 != '\0' && *endptr == '\0') { |
162 |
server_uid = i; |
163 |
} else { |
164 |
passwdbuf = getpwnam(v1); |
165 |
if (!passwdbuf) { |
166 |
if (current_uid) |
167 |
return; |
168 |
fprintf(stderr, "No such user: %s\n", v1); |
169 |
exit(1); |
170 |
} |
171 |
server_uid = passwdbuf->pw_uid; |
172 |
} |
173 |
DBG(printf("%d\n", server_uid); |
174 |
) |
175 |
} |
176 |
|
177 |
static void c_set_group(char *v1, char *v2, void *t) |
178 |
{ |
179 |
struct group *groupbuf; |
180 |
char *endptr; |
181 |
int i; |
182 |
DBG(printf("Group %s = ", v1); |
183 |
) |
184 |
i = strtol(v1, &endptr, 0); |
185 |
if (*v1 != '\0' && *endptr == '\0') { |
186 |
server_gid = i; |
187 |
} else { |
188 |
groupbuf = getgrnam(v1); |
189 |
if (!groupbuf) { |
190 |
if (current_uid) |
191 |
return; |
192 |
fprintf(stderr, "No such group: %s\n", v1); |
193 |
exit(1); |
194 |
} |
195 |
server_gid = groupbuf->gr_gid; |
196 |
} |
197 |
DBG(printf("%d\n", server_gid); |
198 |
) |
199 |
} |
200 |
|
201 |
static void c_set_string(char *v1, char *v2, void *t) |
202 |
{ |
203 |
char *s; |
204 |
DBG(printf("Setting pointer %p to string %s ..", t, v1); |
205 |
) |
206 |
if (t) { |
207 |
s = *(char **) t; |
208 |
if (s) |
209 |
free(s); |
210 |
*(char **) t = strdup(v1); |
211 |
if (!*(char **) t) { |
212 |
DIE("Unable to strdup in c_set_string"); |
213 |
} |
214 |
DBG(printf("done.\n"); |
215 |
) |
216 |
} else { |
217 |
DBG(printf("skipped.\n"); |
218 |
) |
219 |
} |
220 |
} |
221 |
|
222 |
static void c_set_int(char *v1, char *v2, void *t) |
223 |
{ |
224 |
char *endptr; |
225 |
int i; |
226 |
DBG(printf("Setting pointer %p to integer string %s ..", t, v1); |
227 |
) |
228 |
if (t) { |
229 |
i = strtol(v1, &endptr, 0); /* Automatic base 10/16/8 switching */ |
230 |
if (*v1 != '\0' && *endptr == '\0') { |
231 |
*(int *) t = i; |
232 |
DBG(printf(" Integer converted as %d, done\n", i); |
233 |
) |
234 |
} else { |
235 |
/* XXX should tell line number to user */ |
236 |
fprintf(stderr, "Error: %s found where integer expected\n", |
237 |
v1); |
238 |
} |
239 |
} else { |
240 |
DBG(printf("skipped.\n"); |
241 |
) |
242 |
} |
243 |
} |
244 |
|
245 |
static void c_set_unity(char *v1, char *v2, void *t) |
246 |
{ |
247 |
DBG(printf("Setting pointer %p to unity\n", t); |
248 |
) |
249 |
if (t) |
250 |
*(int *) t = 1; |
251 |
} |
252 |
|
253 |
static void c_add_type(char *v1, char *v2, void *t) |
254 |
{ |
255 |
add_mime_type(v1, v2); |
256 |
} |
257 |
|
258 |
static void c_add_alias(char *v1, char *v2, void *t) |
259 |
{ |
260 |
add_alias(v2, v1, *(int *) t); |
261 |
} |
262 |
|
263 |
struct ccommand *lookup_keyword(char *c) |
264 |
{ |
265 |
struct ccommand *p; |
266 |
DBG(printf("Checking string '%s' against keyword list\n", c); |
267 |
) |
268 |
for (p = clist; |
269 |
p < clist + (sizeof (clist) / sizeof (struct ccommand)); p++) { |
270 |
if (strcmp(c, p->name) == 0) |
271 |
return p; |
272 |
} |
273 |
return NULL; |
274 |
} |
275 |
|
276 |
/* |
277 |
* Name: read_config_files |
278 |
* |
279 |
* Description: Reads config files via yyparse, then makes sure that |
280 |
* all required variables were set properly. |
281 |
*/ |
282 |
void read_config_files(void) |
283 |
{ |
284 |
char *temp; |
285 |
current_uid = getuid(); |
286 |
yyin = fopen("boa.conf", "r"); |
287 |
|
288 |
if (!yyin) { |
289 |
fputs("Could not open boa.conf for reading.\n", stderr); |
290 |
exit(1); |
291 |
} |
292 |
if (yyparse()) { |
293 |
fputs("Error parsing config files, exiting\n", stderr); |
294 |
exit(1); |
295 |
} |
296 |
|
297 |
if (!server_name) { |
298 |
struct hostent *he; |
299 |
char temp_name[100]; |
300 |
|
301 |
if (gethostname(temp_name, 100) == -1) { |
302 |
perror("gethostname:"); |
303 |
exit(1); |
304 |
} |
305 |
|
306 |
he = gethostbyname(temp_name); |
307 |
if (he == NULL) { |
308 |
perror("gethostbyname:"); |
309 |
exit(1); |
310 |
} |
311 |
|
312 |
server_name = strdup(he->h_name); |
313 |
if (server_name == NULL) { |
314 |
perror("strdup:"); |
315 |
exit(1); |
316 |
} |
317 |
} |
318 |
tempdir = getenv("TMP"); |
319 |
if (tempdir == NULL) |
320 |
tempdir = "/tmp"; |
321 |
|
322 |
if (single_post_limit < 0) { |
323 |
fprintf(stderr, "Invalid value for single_post_limit: %d\n", |
324 |
single_post_limit); |
325 |
exit(1); |
326 |
} |
327 |
|
328 |
if (document_root) { |
329 |
temp = normalize_path(document_root); |
330 |
free(document_root); |
331 |
document_root = temp; |
332 |
} |
333 |
|
334 |
if (error_log_name) { |
335 |
temp = normalize_path(error_log_name); |
336 |
free(error_log_name); |
337 |
error_log_name = temp; |
338 |
} |
339 |
|
340 |
if (access_log_name) { |
341 |
temp = normalize_path(access_log_name); |
342 |
free(access_log_name); |
343 |
access_log_name = temp; |
344 |
} |
345 |
|
346 |
if (cgi_log_name) { |
347 |
temp = normalize_path(cgi_log_name); |
348 |
free(cgi_log_name); |
349 |
cgi_log_name = temp; |
350 |
} |
351 |
|
352 |
if (dirmaker) { |
353 |
temp = normalize_path(dirmaker); |
354 |
free(dirmaker); |
355 |
dirmaker = temp; |
356 |
} |
357 |
|
358 |
#if 0 |
359 |
if (mime_types) { |
360 |
temp = normalize_path(mime_types); |
361 |
free(mime_types); |
362 |
mime_types = temp; |
363 |
} |
364 |
#endif |
365 |
} |