1 /* vi: set noexpandtab sw=4 sts=4: */
2 /* opkg_download.c - the opkg package management system
6 Copyright (C) 2001 University of Southern California
7 Copyright (C) 2008 OpenMoko Inc
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2, or (at
12 your option) any later version.
14 This program is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
25 #include "opkg_download.h"
26 #include "opkg_message.h"
28 #include "sprintf_alloc.h"
30 #include "file_util.h"
31 #include "opkg_defines.h"
32 #include "libbb/libbb.h"
34 #if defined(HAVE_OPENSSL)
35 #include <openssl/conf.h>
36 #include <openssl/evp.h>
37 #include <openssl/err.h>
38 #include <openssl/ssl.h>
41 #if defined(HAVE_OPENSSL)
42 #include <openssl/bio.h>
43 #include <openssl/objects.h>
44 #include <openssl/x509.h>
45 #include <openssl/pem.h>
46 #include <openssl/hmac.h>
49 #if defined(HAVE_OPENSSL)
50 static void openssl_init(void);
54 static X509_STORE *setup_verify(char *CAfile, char *CApath);
57 static int str_starts_with(const char *str, const char *prefix)
59 return (strncmp(str, prefix, strlen(prefix)) == 0);
63 opkg_download(const char *src, const char *dest_file_name,
64 curl_progress_func cb, void *data, const short hide_error)
68 char *src_basec = xstrdup(src);
69 char *src_base = basename(src_basec);
70 char *tmp_file_location;
72 opkg_msg(NOTICE, "Downloading %s\n", src);
74 if (str_starts_with(src, "file:")) {
75 const char *file_src = src + 5;
76 opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
77 err = file_copy(file_src, dest_file_name);
78 opkg_msg(INFO, "Done.\n");
83 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
85 err = unlink(tmp_file_location);
86 if (err && errno != ENOENT) {
87 opkg_perror(ERROR, "Failed to unlink %s", tmp_file_location);
88 free(tmp_file_location);
92 if (conf->http_proxy) {
94 "Setting environment variable: http_proxy = %s.\n",
96 setenv("http_proxy", conf->http_proxy, 1);
98 if (conf->ftp_proxy) {
100 "Setting environment variable: ftp_proxy = %s.\n",
102 setenv("ftp_proxy", conf->ftp_proxy, 1);
104 if (conf->no_proxy) {
106 "Setting environment variable: no_proxy = %s.\n",
108 setenv("no_proxy", conf->no_proxy, 1);
118 if (conf->http_proxy || conf->ftp_proxy) {
123 argv[i++] = tmp_file_location;
130 "Failed to download %s, wget returned %d.\n",
134 "Check your network settings and connectivity.\n\n");
135 free(tmp_file_location);
140 err = file_move(tmp_file_location, dest_file_name);
142 free(tmp_file_location);
148 opkg_download_cache(const char *src, const char *dest_file_name,
149 curl_progress_func cb, void *data)
151 char *cache_name = xstrdup(src);
152 char *cache_location, *p;
155 if (!conf->cache || str_starts_with(src, "file:")) {
156 err = opkg_download(src, dest_file_name, cb, data, 0);
160 if (!file_is_dir(conf->cache)) {
161 opkg_msg(ERROR, "%s is not a directory.\n", conf->cache);
166 for (p = cache_name; *p; p++)
168 *p = ','; /* looks nicer than | or # */
170 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
171 if (file_exists(cache_location))
172 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
174 /* cache file with funky name not found, try simple name */
176 char *filename = strrchr(dest_file_name, '/');
178 cache_name = xstrdup(filename + 1); // strip leading '/'
180 cache_name = xstrdup(dest_file_name);
181 free(cache_location);
182 sprintf_alloc(&cache_location, "%s/%s", conf->cache,
184 if (file_exists(cache_location))
185 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
187 err = opkg_download(src, cache_location, cb, data, 0);
189 (void)unlink(cache_location);
195 err = file_copy(cache_location, dest_file_name);
198 free(cache_location);
204 int opkg_download_pkg(pkg_t * pkg, const char *dir)
208 char *local_filename;
209 char *stripped_filename;
212 if (pkg->src == NULL) {
214 "Package %s is not available from any configured src.\n",
219 filename = pkg_get_string(pkg, PKG_FILENAME);
221 if (filename == NULL) {
223 "Package %s does not have a valid filename field.\n",
228 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
230 /* The filename might be something like
231 "../../foo.opk". While this is correct, and exactly what we
232 want to use to construct url above, here we actually need to
233 use just the filename part, without any directory. */
235 stripped_filename = strrchr(filename, '/');
236 if (!stripped_filename)
237 stripped_filename = filename;
239 sprintf_alloc(&local_filename, "%s/%s", dir, stripped_filename);
240 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
242 err = opkg_download_cache(url, local_filename, NULL, NULL);
249 * Downloads file from url, installs in package database, return package name.
251 int opkg_prepare_url_for_install(const char *url, char **namep)
255 abstract_pkg_t *ab_pkg;
259 if (str_starts_with(url, "http://")
260 || str_starts_with(url, "ftp://")) {
262 char *file_basec = xstrdup(url);
263 char *file_base = basename(file_basec);
265 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
266 err = opkg_download(url, tmp_file, NULL, NULL, 0);
270 err = pkg_init_from_file(pkg, tmp_file);
277 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
278 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
279 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
281 err = pkg_init_from_file(pkg, url);
284 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
285 pkg->name, pkg_get_string(pkg, PKG_LOCAL_FILENAME));
286 pkg->provided_by_hand = 1;
289 ab_pkg = ensure_abstract_pkg_by_name(url);
291 if (!(ab_pkg->state_flag & SF_NEED_DETAIL)) {
292 opkg_msg(DEBUG, "applying abpkg flag to %s\n", ab_pkg->name);
293 ab_pkg->state_flag |= SF_NEED_DETAIL;
301 pkg->dest = conf->default_dest;
302 pkg->state_want = SW_INSTALL;
303 pkg->state_flag |= SF_PREFER;
304 hash_insert_pkg(pkg, 1);
307 *namep = xstrdup(pkg->name);
312 int opkg_verify_file(char *text_file, char *sig_file)
314 #if defined HAVE_USIGN
318 if (conf->check_signature == 0)
326 execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file,
331 waitpid(pid, &status, 0);
332 if (!WIFEXITED(status) || WEXITSTATUS(status))
336 #elif defined HAVE_OPENSSL
337 X509_STORE *store = NULL;
339 BIO *in = NULL, *indata = NULL;
341 // Sig check failed by default !
346 // Set-up the key store
349 setup_verify(conf->signature_ca_file, conf->signature_ca_path))) {
350 opkg_msg(ERROR, "Can't open CA certificates.\n");
351 goto verify_file_end;
353 // Open a BIO to read the sig file
354 if (!(in = BIO_new_file(sig_file, "rb"))) {
355 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
356 goto verify_file_end;
358 // Read the PKCS7 block contained in the sig file
359 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
361 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
363 goto verify_file_end;
366 // Open the Package file to authenticate
367 if (!(indata = BIO_new_file(text_file, "rb"))) {
368 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
369 goto verify_file_end;
371 // Let's verify the autenticity !
372 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1) {
374 opkg_msg(ERROR, "Verification failure.\n");
384 X509_STORE_free(store);
388 /* mute `unused variable' warnings. */
396 #if defined(HAVE_OPENSSL)
397 static void openssl_init(void)
402 OPENSSL_config(NULL);
403 OpenSSL_add_all_algorithms();
404 ERR_load_crypto_strings();
411 #if defined HAVE_OPENSSL
412 static X509_STORE *setup_verify(char *CAfile, char *CApath)
414 X509_STORE *store = NULL;
415 X509_LOOKUP *lookup = NULL;
417 if (!(store = X509_STORE_new())) {
418 // Something bad is happening...
421 // adds the X509 file lookup method
422 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
423 if (lookup == NULL) {
426 // Autenticating against one CA file
428 if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
429 // Invalid CA => Bye bye
430 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
434 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
437 // Now look into CApath directory if supplied
438 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
439 if (lookup == NULL) {
444 if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
445 opkg_msg(ERROR, "Error loading directory %s.\n",
450 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
459 X509_STORE_free(store);