1 /* $NetBSD: parse-config.c,v 1.5 2021/04/10 19:49:59 nia Exp $ */
2
3 #if HAVE_CONFIG_H
4 #include "config.h"
5 #endif
6 #include <nbcompat.h>
7 #if HAVE_SYS_CDEFS_H
8 #include <sys/cdefs.h>
9 #endif
10 __RCSID("$NetBSD: parse-config.c,v 1.5 2021/04/10 19:49:59 nia Exp $");
11
12 /*-
13 * Copyright (c) 2008, 2009 Joerg Sonnenberger <joerg@NetBSD.org>.
14 * All rights reserved.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 *
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in
24 * the documentation and/or other materials provided with the
25 * distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 #if HAVE_ERR_H
42 #include <err.h>
43 #endif
44 #include <errno.h>
45 #if HAVE_STRING_H
46 #include <string.h>
47 #endif
48
49 #ifndef BOOTSTRAP
50 #include <fetch.h>
51 #endif
52
53 #include "lib.h"
54
55 static int cache_connections = 16;
56 static int cache_connections_host = 4;
57
58 const char *config_file = SYSCONFDIR"/pkg_install.conf";
59
60 char fetch_flags[10] = ""; /* Workaround Mac OS X linker issues with BSS */
61 static const char *active_ftp;
62 static const char *verbose_netio;
63 static const char *ignore_proxy;
64 const char *cache_index = "yes";
65 const char *cert_chain_file;
66 const char *certs_packages;
67 const char *certs_pkg_vulnerabilities;
68 const char *check_eol = "yes";
69 const char *check_os_version = "yes";
70 const char *check_vulnerabilities;
71 static const char *config_cache_connections;
72 static const char *config_cache_connections_host;
73 const char *config_pkg_dbdir;
74 const char *config_pkg_path;
75 const char *config_pkg_refcount_dbdir;
76 const char *do_license_check;
77 const char *verified_installation;
78 const char *gpg_cmd;
79 const char *gpg_keyring_pkgvuln;
80 const char *gpg_keyring_sign;
81 const char *gpg_keyring_verify;
82 const char *gpg_sign_as;
83 const char *pkg_vulnerabilities_dir;
84 const char *pkg_vulnerabilities_file;
85 const char *pkg_vulnerabilities_url;
86 const char *ignore_advisories = NULL;
87 const char tnf_vulnerability_base[] = "http://cdn.NetBSD.org/pub/NetBSD/packages/vulns";
88 const char *acceptable_licenses = NULL;
89
90 static struct config_variable {
91 const char *name;
92 const char **var;
93 } config_variables[] = {
94 { "ACCEPTABLE_LICENSES", &acceptable_licenses },
95 { "ACTIVE_FTP", &active_ftp },
96 { "CACHE_INDEX", &cache_index },
97 { "CACHE_CONNECTIONS", &config_cache_connections },
98 { "CACHE_CONNECTIONS_HOST", &config_cache_connections_host },
99 { "CERTIFICATE_ANCHOR_PKGS", &certs_packages },
100 { "CERTIFICATE_ANCHOR_PKGVULN", &certs_pkg_vulnerabilities },
101 { "CERTIFICATE_CHAIN", &cert_chain_file },
102 { "CHECK_LICENSE", &do_license_check },
103 { "CHECK_END_OF_LIFE", &check_eol },
104 { "CHECK_OS_VERSION", &check_os_version },
105 { "CHECK_VULNERABILITIES", &check_vulnerabilities },
106 { "DEFAULT_ACCEPTABLE_LICENSES", &default_acceptable_licenses },
107 { "GPG", &gpg_cmd },
108 { "GPG_KEYRING_PKGVULN", &gpg_keyring_pkgvuln },
109 { "GPG_KEYRING_SIGN", &gpg_keyring_sign },
110 { "GPG_KEYRING_VERIFY", &gpg_keyring_verify },
111 { "GPG_SIGN_AS", &gpg_sign_as },
112 { "IGNORE_PROXY", &ignore_proxy },
113 { "IGNORE_URL", &ignore_advisories },
114 { "PKG_DBDIR", &config_pkg_dbdir },
115 { "PKG_PATH", &config_pkg_path },
116 { "PKG_REFCOUNT_DBDIR", &config_pkg_refcount_dbdir },
117 { "PKGVULNDIR", &pkg_vulnerabilities_dir },
118 { "PKGVULNURL", &pkg_vulnerabilities_url },
119 { "VERBOSE_NETIO", &verbose_netio },
120 { "VERIFIED_INSTALLATION", &verified_installation },
121 { NULL, NULL }, /* For use by pkg_install_show_variable */
122 { NULL, NULL }
123 };
124
125 char *config_tmp_variables[sizeof config_variables/sizeof config_variables[0]];
126
127 static void
parse_pkg_install_conf(void)128 parse_pkg_install_conf(void)
129 {
130 struct config_variable *var;
131 FILE *fp;
132 char *line, *value;
133 size_t len, var_len, i;
134
135 fp = fopen(config_file, "r");
136 if (!fp) {
137 if (errno != ENOENT)
138 warn("Can't open '%s' for reading", config_file);
139 return;
140 }
141
142 while ((line = fgetln(fp, &len)) != (char *) NULL) {
143 if (line[len - 1] == '\n')
144 --len;
145 for (i = 0; (var = &config_variables[i])->name != NULL; ++i) {
146 var_len = strlen(var->name);
147 if (strncmp(var->name, line, var_len) != 0)
148 continue;
149 if (line[var_len] != '=')
150 continue;
151 line += var_len + 1;
152 len -= var_len + 1;
153 if (config_tmp_variables[i])
154 value = xasprintf("%s\n%.*s",
155 config_tmp_variables[i], (int)len, line);
156 else
157 value = xasprintf("%.*s", (int)len, line);
158 free(config_tmp_variables[i]);
159 config_tmp_variables[i] = value;
160 break;
161 }
162 }
163
164 for (i = 0; (var = &config_variables[i])->name != NULL; ++i) {
165 if (config_tmp_variables[i] == NULL)
166 continue;
167 *var->var = config_tmp_variables[i];
168 config_tmp_variables[i] = NULL;
169 }
170
171 fclose(fp);
172 }
173
174 void
pkg_install_config(void)175 pkg_install_config(void)
176 {
177 int do_cache_index;
178 char *value;
179
180 parse_pkg_install_conf();
181
182 if ((value = getenv("PKG_DBDIR")) != NULL)
183 pkgdb_set_dir(value, 2);
184 else if (config_pkg_dbdir != NULL)
185 pkgdb_set_dir(config_pkg_dbdir, 1);
186 config_pkg_dbdir = xstrdup(pkgdb_get_dir());
187
188 if ((value = getenv("PKG_REFCOUNT_DBDIR")) != NULL)
189 config_pkg_refcount_dbdir = value;
190 else if (config_pkg_refcount_dbdir == NULL)
191 config_pkg_refcount_dbdir = xasprintf("%s.refcount",
192 pkgdb_get_dir());
193
194 if (pkg_vulnerabilities_dir == NULL)
195 pkg_vulnerabilities_dir = pkgdb_get_dir();
196 pkg_vulnerabilities_file = xasprintf("%s/pkg-vulnerabilities",
197 pkg_vulnerabilities_dir);
198 if (pkg_vulnerabilities_url == NULL) {
199 pkg_vulnerabilities_url = xasprintf("%s/pkg-vulnerabilities.gz",
200 tnf_vulnerability_base);
201 }
202 if (verified_installation == NULL)
203 verified_installation = "never";
204
205 if (check_vulnerabilities == NULL)
206 check_vulnerabilities = "never";
207
208 if (do_license_check == NULL)
209 do_license_check = "no";
210
211 if ((value = getenv("PKG_PATH")) != NULL)
212 config_pkg_path = value;
213
214 if (strcasecmp(cache_index, "yes") == 0)
215 do_cache_index = 1;
216 else {
217 if (strcasecmp(cache_index, "no"))
218 warnx("Invalid value for configuration option "
219 "CACHE_INDEX");
220 do_cache_index = 0;
221 }
222
223 if (config_cache_connections && *config_cache_connections) {
224 long v = strtol(config_cache_connections, &value, 10);
225 if (*value == '\0') {
226 if (v >= INT_MAX || v < 0)
227 v = -1;
228 cache_connections = v;
229 }
230 }
231 config_cache_connections = xasprintf("%d", cache_connections);
232
233 if (config_cache_connections_host) {
234 long v = strtol(config_cache_connections_host, &value, 10);
235 if (*value == '\0') {
236 if (v >= INT_MAX || v < 0)
237 v = -1;
238 cache_connections_host = v;
239 }
240 }
241 config_cache_connections_host = xasprintf("%d", cache_connections_host);
242
243 #ifndef BOOTSTRAP
244 fetchConnectionCacheInit(cache_connections, cache_connections_host);
245 #endif
246
247 snprintf(fetch_flags, sizeof(fetch_flags), "%s%s%s%s",
248 (do_cache_index) ? "c" : "",
249 (verbose_netio && *verbose_netio) ? "v" : "",
250 (active_ftp && *active_ftp) ? "a" : "",
251 (ignore_proxy && *ignore_proxy) ? "d" : "");
252 }
253
254 void
pkg_install_show_variable(const char * var_name)255 pkg_install_show_variable(const char *var_name)
256 {
257 struct config_variable *var;
258 const char *tmp_value = NULL;
259
260 for (var = config_variables; var->name != NULL; ++var) {
261 if (strcmp(var->name, var_name) == 0)
262 break;
263 }
264 if (var->name == NULL) {
265 var->name = var_name;
266 var->var = &tmp_value;
267 }
268
269 pkg_install_config();
270
271 if (*var->var != NULL)
272 puts(*var->var);
273 }
274