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.
27 #include "opkg_download.h"
28 #include "opkg_message.h"
30 #include "sprintf_alloc.h"
32 #include "file_util.h"
33 #include "opkg_defines.h"
34 #include "libbb/libbb.h"
37 #include <curl/curl.h>
40 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
41 #include <openssl/conf.h>
42 #include <openssl/evp.h>
43 #include <openssl/err.h>
44 #include <openssl/ssl.h>
47 #if defined(HAVE_GPGME)
49 #elif defined(HAVE_OPENSSL)
50 #include <openssl/bio.h>
51 #include <openssl/objects.h>
52 #include <openssl/x509.h>
53 #include <openssl/pem.h>
54 #include <openssl/hmac.h>
57 #ifdef HAVE_PATHFINDER
58 #include "opkg_pathfinder.h"
61 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
62 static void openssl_init(void);
66 static X509_STORE *setup_verify(char *CAfile, char *CApath);
71 * Make curl an instance variable so we don't have to instanciate it
74 static CURL *curl = NULL;
75 static CURL *opkg_curl_init(curl_progress_func cb, void *data);
78 static int str_starts_with(const char *str, const char *prefix)
80 return (strncmp(str, prefix, strlen(prefix)) == 0);
84 opkg_download(const char *src, const char *dest_file_name,
85 curl_progress_func cb, void *data, const short hide_error)
89 char *src_basec = xstrdup(src);
90 char *src_base = basename(src_basec);
91 char *tmp_file_location;
93 opkg_msg(NOTICE, "Downloading %s\n", src);
95 if (str_starts_with(src, "file:")) {
96 const char *file_src = src + 5;
97 opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
98 err = file_copy(file_src, dest_file_name);
99 opkg_msg(INFO, "Done.\n");
104 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
106 err = unlink(tmp_file_location);
107 if (err && errno != ENOENT) {
108 opkg_perror(ERROR, "Failed to unlink %s", tmp_file_location);
109 free(tmp_file_location);
113 if (conf->http_proxy) {
115 "Setting environment variable: http_proxy = %s.\n",
117 setenv("http_proxy", conf->http_proxy, 1);
119 if (conf->ftp_proxy) {
121 "Setting environment variable: ftp_proxy = %s.\n",
123 setenv("ftp_proxy", conf->ftp_proxy, 1);
125 if (conf->no_proxy) {
127 "Setting environment variable: no_proxy = %s.\n",
129 setenv("no_proxy", conf->no_proxy, 1);
133 FILE *file = fopen(tmp_file_location, "w");
135 curl = opkg_curl_init(cb, data);
137 curl_easy_setopt(curl, CURLOPT_URL, src);
138 curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
140 res = curl_easy_perform(curl);
144 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE,
146 opkg_msg(hide_error ? DEBUG2 : ERROR,
147 "Failed to download %s: %s.\n", src,
148 curl_easy_strerror(res));
149 free(tmp_file_location);
154 free(tmp_file_location);
165 if (conf->http_proxy || conf->ftp_proxy) {
170 argv[i++] = tmp_file_location;
177 "Failed to download %s, wget returned %d.\n",
181 "Check your network settings and connectivity.\n\n");
182 free(tmp_file_location);
188 err = file_move(tmp_file_location, dest_file_name);
190 free(tmp_file_location);
196 opkg_download_cache(const char *src, const char *dest_file_name,
197 curl_progress_func cb, void *data)
199 char *cache_name = xstrdup(src);
200 char *cache_location, *p;
203 if (!conf->cache || str_starts_with(src, "file:")) {
204 err = opkg_download(src, dest_file_name, cb, data, 0);
208 if (!file_is_dir(conf->cache)) {
209 opkg_msg(ERROR, "%s is not a directory.\n", conf->cache);
214 for (p = cache_name; *p; p++)
216 *p = ','; /* looks nicer than | or # */
218 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
219 if (file_exists(cache_location))
220 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
222 /* cache file with funky name not found, try simple name */
224 char *filename = strrchr(dest_file_name, '/');
226 cache_name = xstrdup(filename + 1); // strip leading '/'
228 cache_name = xstrdup(dest_file_name);
229 free(cache_location);
230 sprintf_alloc(&cache_location, "%s/%s", conf->cache,
232 if (file_exists(cache_location))
233 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
235 err = opkg_download(src, cache_location, cb, data, 0);
237 (void)unlink(cache_location);
243 err = file_copy(cache_location, dest_file_name);
246 free(cache_location);
252 int opkg_download_pkg(pkg_t * pkg, const char *dir)
256 char *local_filename;
257 char *stripped_filename;
260 if (pkg->src == NULL) {
262 "Package %s is not available from any configured src.\n",
267 filename = pkg_get_string(pkg, PKG_FILENAME);
269 if (filename == NULL) {
271 "Package %s does not have a valid filename field.\n",
276 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
278 /* The filename might be something like
279 "../../foo.opk". While this is correct, and exactly what we
280 want to use to construct url above, here we actually need to
281 use just the filename part, without any directory. */
283 stripped_filename = strrchr(filename, '/');
284 if (!stripped_filename)
285 stripped_filename = filename;
287 sprintf_alloc(&local_filename, "%s/%s", dir, stripped_filename);
288 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
290 err = opkg_download_cache(url, local_filename, NULL, NULL);
297 * Downloads file from url, installs in package database, return package name.
299 int opkg_prepare_url_for_install(const char *url, char **namep)
303 abstract_pkg_t *ab_pkg;
307 if (str_starts_with(url, "http://")
308 || str_starts_with(url, "ftp://")) {
310 char *file_basec = xstrdup(url);
311 char *file_base = basename(file_basec);
313 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
314 err = opkg_download(url, tmp_file, NULL, NULL, 0);
318 err = pkg_init_from_file(pkg, tmp_file);
325 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
326 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
327 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
329 err = pkg_init_from_file(pkg, url);
332 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
333 pkg->name, pkg_get_string(pkg, PKG_LOCAL_FILENAME));
334 pkg->provided_by_hand = 1;
337 ab_pkg = ensure_abstract_pkg_by_name(url);
339 if (!(ab_pkg->state_flag & SF_NEED_DETAIL)) {
340 opkg_msg(DEBUG, "applying abpkg flag to %s\n", ab_pkg->name);
341 ab_pkg->state_flag |= SF_NEED_DETAIL;
349 pkg->dest = conf->default_dest;
350 pkg->state_want = SW_INSTALL;
351 pkg->state_flag |= SF_PREFER;
352 hash_insert_pkg(pkg, 1);
355 *namep = xstrdup(pkg->name);
360 int opkg_verify_file(char *text_file, char *sig_file)
362 #if defined HAVE_USIGN
366 if (conf->check_signature == 0)
374 execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file,
379 waitpid(pid, &status, 0);
380 if (!WIFEXITED(status) || WEXITSTATUS(status))
384 #elif defined HAVE_GPGME
385 if (conf->check_signature == 0)
389 gpgme_data_t sig, text, key;
391 gpgme_verify_result_t result;
393 char *trusted_path = NULL;
395 gpgme_check_version(NULL);
397 err = gpgme_new(&ctx);
402 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root,
403 "/etc/opkg/trusted.gpg");
404 err = gpgme_data_new_from_file(&key, trusted_path, 1);
409 err = gpgme_op_import(ctx, key);
411 gpgme_data_release(key);
414 gpgme_data_release(key);
416 err = gpgme_data_new_from_file(&sig, sig_file, 1);
422 err = gpgme_data_new_from_file(&text, text_file, 1);
424 gpgme_data_release(sig);
429 err = gpgme_op_verify(ctx, sig, text, NULL);
431 result = gpgme_op_verify_result(ctx);
435 /* see if any of the signitures matched */
436 s = result->signatures;
438 status = gpg_err_code(s->status);
439 if (status == GPG_ERR_NO_ERROR)
444 gpgme_data_release(sig);
445 gpgme_data_release(text);
449 #elif defined HAVE_OPENSSL
450 X509_STORE *store = NULL;
452 BIO *in = NULL, *indata = NULL;
454 // Sig check failed by default !
459 // Set-up the key store
462 setup_verify(conf->signature_ca_file, conf->signature_ca_path))) {
463 opkg_msg(ERROR, "Can't open CA certificates.\n");
464 goto verify_file_end;
466 // Open a BIO to read the sig file
467 if (!(in = BIO_new_file(sig_file, "rb"))) {
468 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
469 goto verify_file_end;
471 // Read the PKCS7 block contained in the sig file
472 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
474 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
476 goto verify_file_end;
478 #if defined(HAVE_PATHFINDER)
479 if (conf->check_x509_path) {
480 if (!pkcs7_pathfinder_verify_signers(p7)) {
481 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
482 "Path verification failed.\n");
483 goto verify_file_end;
488 // Open the Package file to authenticate
489 if (!(indata = BIO_new_file(text_file, "rb"))) {
490 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
491 goto verify_file_end;
493 // Let's verify the autenticity !
494 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1) {
496 opkg_msg(ERROR, "Verification failure.\n");
506 X509_STORE_free(store);
510 /* mute `unused variable' warnings. */
518 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
519 static void openssl_init(void)
524 OPENSSL_config(NULL);
525 OpenSSL_add_all_algorithms();
526 ERR_load_crypto_strings();
533 #if defined HAVE_OPENSSL
534 static X509_STORE *setup_verify(char *CAfile, char *CApath)
536 X509_STORE *store = NULL;
537 X509_LOOKUP *lookup = NULL;
539 if (!(store = X509_STORE_new())) {
540 // Something bad is happening...
543 // adds the X509 file lookup method
544 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
545 if (lookup == NULL) {
548 // Autenticating against one CA file
550 if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
551 // Invalid CA => Bye bye
552 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
556 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
559 // Now look into CApath directory if supplied
560 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
561 if (lookup == NULL) {
566 if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
567 opkg_msg(ERROR, "Error loading directory %s.\n",
572 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
581 X509_STORE_free(store);
589 void opkg_curl_cleanup(void)
592 curl_easy_cleanup(curl);
597 static CURL *opkg_curl_init(curl_progress_func cb, void *data)
601 curl = curl_easy_init();
606 if (conf->ssl_engine) {
608 /* use crypto engine */
610 (curl, CURLOPT_SSLENGINE,
611 conf->ssl_engine) != CURLE_OK) {
613 "Can't set crypto engine '%s'.\n",
619 /* set the crypto engine as default */
621 (curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK) {
623 "Can't set crypto engine '%s' as default.\n",
631 /* cert & key can only be in PEM case in the same file */
632 if (conf->ssl_key_passwd) {
634 (curl, CURLOPT_SSLKEYPASSWD,
635 conf->ssl_key_passwd) != CURLE_OK) {
637 "Failed to set key password.\n");
641 /* sets the client certificate and its type */
642 if (conf->ssl_cert_type) {
644 (curl, CURLOPT_SSLCERTTYPE,
645 conf->ssl_cert_type) != CURLE_OK) {
647 "Failed to set certificate format.\n");
650 /* SSL cert name isn't mandatory */
651 if (conf->ssl_cert) {
652 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
655 /* sets the client key and its type */
656 if (conf->ssl_key_type) {
658 (curl, CURLOPT_SSLKEYTYPE,
659 conf->ssl_key_type) != CURLE_OK) {
660 opkg_msg(DEBUG, "Failed to set key format.\n");
665 (curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK) {
666 opkg_msg(DEBUG, "Failed to set key.\n");
670 /* Should we verify the peer certificate ? */
671 if (conf->ssl_dont_verify_peer) {
673 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
675 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
677 #ifdef HAVE_PATHFINDER
678 if (conf->check_x509_path) {
680 (curl, CURLOPT_SSL_CTX_FUNCTION,
681 curl_ssl_ctx_function) != CURLE_OK) {
683 "Failed to set ssl path verification callback.\n");
685 curl_easy_setopt(curl,
686 CURLOPT_SSL_CTX_DATA,
693 /* certification authority file and/or path */
694 if (conf->ssl_ca_file) {
695 curl_easy_setopt(curl, CURLOPT_CAINFO,
698 if (conf->ssl_ca_path) {
699 curl_easy_setopt(curl, CURLOPT_CAPATH,
704 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
705 curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
706 if (conf->http_proxy || conf->ftp_proxy) {
708 sprintf_alloc(&userpwd, "%s:%s", conf->proxy_user,
710 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
715 curl_easy_setopt(curl, CURLOPT_NOPROGRESS, (cb == NULL));
717 curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, data);
718 curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, cb);