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"
35 #include <curl/curl.h>
38 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
39 #include <openssl/conf.h>
40 #include <openssl/evp.h>
41 #include <openssl/err.h>
42 #include <openssl/ssl.h>
45 #if defined(HAVE_GPGME)
47 #elif defined(HAVE_OPENSSL)
48 #include <openssl/bio.h>
49 #include <openssl/objects.h>
50 #include <openssl/x509.h>
51 #include <openssl/pem.h>
52 #include <openssl/hmac.h>
55 #ifdef HAVE_PATHFINDER
56 #include "opkg_pathfinder.h"
59 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
60 static void openssl_init(void);
64 static X509_STORE *setup_verify(char *CAfile, char *CApath);
69 * Make curl an instance variable so we don't have to instanciate it
72 static CURL *curl = NULL;
73 static CURL *opkg_curl_init(curl_progress_func cb, void *data);
76 static int str_starts_with(const char *str, const char *prefix)
78 return (strncmp(str, prefix, strlen(prefix)) == 0);
82 opkg_download(const char *src, const char *dest_file_name,
83 curl_progress_func cb, void *data, const short hide_error)
87 char *src_basec = xstrdup(src);
88 char *src_base = basename(src_basec);
89 char *tmp_file_location;
91 opkg_msg(NOTICE, "Downloading %s\n", src);
93 if (str_starts_with(src, "file:")) {
94 const char *file_src = src + 5;
95 opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
96 err = file_copy(file_src, dest_file_name);
97 opkg_msg(INFO, "Done.\n");
102 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
104 err = unlink(tmp_file_location);
105 if (err && errno != ENOENT) {
106 opkg_perror(ERROR, "Failed to unlink %s", tmp_file_location);
107 free(tmp_file_location);
111 if (conf->http_proxy) {
113 "Setting environment variable: http_proxy = %s.\n",
115 setenv("http_proxy", conf->http_proxy, 1);
117 if (conf->ftp_proxy) {
119 "Setting environment variable: ftp_proxy = %s.\n",
121 setenv("ftp_proxy", conf->ftp_proxy, 1);
123 if (conf->no_proxy) {
125 "Setting environment variable: no_proxy = %s.\n",
127 setenv("no_proxy", conf->no_proxy, 1);
131 FILE *file = fopen(tmp_file_location, "w");
133 curl = opkg_curl_init(cb, data);
135 curl_easy_setopt(curl, CURLOPT_URL, src);
136 curl_easy_setopt(curl, CURLOPT_WRITEDATA, file);
138 res = curl_easy_perform(curl);
142 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE,
144 opkg_msg(hide_error ? DEBUG2 : ERROR,
145 "Failed to download %s: %s.\n", src,
146 curl_easy_strerror(res));
147 free(tmp_file_location);
152 free(tmp_file_location);
163 if (conf->http_proxy || conf->ftp_proxy) {
168 argv[i++] = tmp_file_location;
175 "Failed to download %s, wget returned %d.\n",
179 "Check your network settings and connectivity.\n\n");
180 free(tmp_file_location);
186 err = file_move(tmp_file_location, dest_file_name);
188 free(tmp_file_location);
194 opkg_download_cache(const char *src, const char *dest_file_name,
195 curl_progress_func cb, void *data)
197 char *cache_name = xstrdup(src);
198 char *cache_location, *p;
201 if (!conf->cache || str_starts_with(src, "file:")) {
202 err = opkg_download(src, dest_file_name, cb, data, 0);
206 if (!file_is_dir(conf->cache)) {
207 opkg_msg(ERROR, "%s is not a directory.\n", conf->cache);
212 for (p = cache_name; *p; p++)
214 *p = ','; /* looks nicer than | or # */
216 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
217 if (file_exists(cache_location))
218 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
220 /* cache file with funky name not found, try simple name */
222 char *filename = strrchr(dest_file_name, '/');
224 cache_name = xstrdup(filename + 1); // strip leading '/'
226 cache_name = xstrdup(dest_file_name);
227 free(cache_location);
228 sprintf_alloc(&cache_location, "%s/%s", conf->cache,
230 if (file_exists(cache_location))
231 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
233 err = opkg_download(src, cache_location, cb, data, 0);
235 (void)unlink(cache_location);
241 err = file_copy(cache_location, dest_file_name);
244 free(cache_location);
250 int opkg_download_pkg(pkg_t * pkg, const char *dir)
254 char *local_filename;
255 char *stripped_filename;
258 if (pkg->src == NULL) {
260 "Package %s is not available from any configured src.\n",
265 filename = pkg_get_string(pkg, PKG_FILENAME);
267 if (filename == NULL) {
269 "Package %s does not have a valid filename field.\n",
274 sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
276 /* The filename might be something like
277 "../../foo.opk". While this is correct, and exactly what we
278 want to use to construct url above, here we actually need to
279 use just the filename part, without any directory. */
281 stripped_filename = strrchr(filename, '/');
282 if (!stripped_filename)
283 stripped_filename = filename;
285 sprintf_alloc(&local_filename, "%s/%s", dir, stripped_filename);
286 pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
288 err = opkg_download_cache(url, local_filename, NULL, NULL);
295 * Downloads file from url, installs in package database, return package name.
297 int opkg_prepare_url_for_install(const char *url, char **namep)
301 abstract_pkg_t *ab_pkg;
305 if (str_starts_with(url, "http://")
306 || str_starts_with(url, "ftp://")) {
308 char *file_basec = xstrdup(url);
309 char *file_base = basename(file_basec);
311 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
312 err = opkg_download(url, tmp_file, NULL, NULL, 0);
316 err = pkg_init_from_file(pkg, tmp_file);
323 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
324 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
325 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
327 err = pkg_init_from_file(pkg, url);
330 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
331 pkg->name, pkg_get_string(pkg, PKG_LOCAL_FILENAME));
332 pkg->provided_by_hand = 1;
335 ab_pkg = ensure_abstract_pkg_by_name(url);
337 if (!(ab_pkg->state_flag & SF_NEED_DETAIL)) {
338 opkg_msg(DEBUG, "applying abpkg flag to %s\n", ab_pkg->name);
339 ab_pkg->state_flag |= SF_NEED_DETAIL;
347 pkg->dest = conf->default_dest;
348 pkg->state_want = SW_INSTALL;
349 pkg->state_flag |= SF_PREFER;
350 hash_insert_pkg(pkg, 1);
353 *namep = xstrdup(pkg->name);
358 int opkg_verify_file(char *text_file, char *sig_file)
360 #if defined HAVE_USIGN
364 if (conf->check_signature == 0)
372 execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file,
377 waitpid(pid, &status, 0);
378 if (!WIFEXITED(status) || WEXITSTATUS(status))
382 #elif defined HAVE_GPGME
383 if (conf->check_signature == 0)
387 gpgme_data_t sig, text, key;
389 gpgme_verify_result_t result;
391 char *trusted_path = NULL;
393 gpgme_check_version(NULL);
395 err = gpgme_new(&ctx);
400 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root,
401 "/etc/opkg/trusted.gpg");
402 err = gpgme_data_new_from_file(&key, trusted_path, 1);
407 err = gpgme_op_import(ctx, key);
409 gpgme_data_release(key);
412 gpgme_data_release(key);
414 err = gpgme_data_new_from_file(&sig, sig_file, 1);
420 err = gpgme_data_new_from_file(&text, text_file, 1);
422 gpgme_data_release(sig);
427 err = gpgme_op_verify(ctx, sig, text, NULL);
429 result = gpgme_op_verify_result(ctx);
433 /* see if any of the signitures matched */
434 s = result->signatures;
436 status = gpg_err_code(s->status);
437 if (status == GPG_ERR_NO_ERROR)
442 gpgme_data_release(sig);
443 gpgme_data_release(text);
447 #elif defined HAVE_OPENSSL
448 X509_STORE *store = NULL;
450 BIO *in = NULL, *indata = NULL;
452 // Sig check failed by default !
457 // Set-up the key store
460 setup_verify(conf->signature_ca_file, conf->signature_ca_path))) {
461 opkg_msg(ERROR, "Can't open CA certificates.\n");
462 goto verify_file_end;
464 // Open a BIO to read the sig file
465 if (!(in = BIO_new_file(sig_file, "rb"))) {
466 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
467 goto verify_file_end;
469 // Read the PKCS7 block contained in the sig file
470 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
472 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
474 goto verify_file_end;
476 #if defined(HAVE_PATHFINDER)
477 if (conf->check_x509_path) {
478 if (!pkcs7_pathfinder_verify_signers(p7)) {
479 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
480 "Path verification failed.\n");
481 goto verify_file_end;
486 // Open the Package file to authenticate
487 if (!(indata = BIO_new_file(text_file, "rb"))) {
488 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
489 goto verify_file_end;
491 // Let's verify the autenticity !
492 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1) {
494 opkg_msg(ERROR, "Verification failure.\n");
504 X509_STORE_free(store);
508 /* mute `unused variable' warnings. */
516 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
517 static void openssl_init(void)
522 OPENSSL_config(NULL);
523 OpenSSL_add_all_algorithms();
524 ERR_load_crypto_strings();
531 #if defined HAVE_OPENSSL
532 static X509_STORE *setup_verify(char *CAfile, char *CApath)
534 X509_STORE *store = NULL;
535 X509_LOOKUP *lookup = NULL;
537 if (!(store = X509_STORE_new())) {
538 // Something bad is happening...
541 // adds the X509 file lookup method
542 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
543 if (lookup == NULL) {
546 // Autenticating against one CA file
548 if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
549 // Invalid CA => Bye bye
550 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
554 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
557 // Now look into CApath directory if supplied
558 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
559 if (lookup == NULL) {
564 if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
565 opkg_msg(ERROR, "Error loading directory %s.\n",
570 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
579 X509_STORE_free(store);
587 void opkg_curl_cleanup(void)
590 curl_easy_cleanup(curl);
595 static CURL *opkg_curl_init(curl_progress_func cb, void *data)
599 curl = curl_easy_init();
604 if (conf->ssl_engine) {
606 /* use crypto engine */
608 (curl, CURLOPT_SSLENGINE,
609 conf->ssl_engine) != CURLE_OK) {
611 "Can't set crypto engine '%s'.\n",
617 /* set the crypto engine as default */
619 (curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK) {
621 "Can't set crypto engine '%s' as default.\n",
629 /* cert & key can only be in PEM case in the same file */
630 if (conf->ssl_key_passwd) {
632 (curl, CURLOPT_SSLKEYPASSWD,
633 conf->ssl_key_passwd) != CURLE_OK) {
635 "Failed to set key password.\n");
639 /* sets the client certificate and its type */
640 if (conf->ssl_cert_type) {
642 (curl, CURLOPT_SSLCERTTYPE,
643 conf->ssl_cert_type) != CURLE_OK) {
645 "Failed to set certificate format.\n");
648 /* SSL cert name isn't mandatory */
649 if (conf->ssl_cert) {
650 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
653 /* sets the client key and its type */
654 if (conf->ssl_key_type) {
656 (curl, CURLOPT_SSLKEYTYPE,
657 conf->ssl_key_type) != CURLE_OK) {
658 opkg_msg(DEBUG, "Failed to set key format.\n");
663 (curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK) {
664 opkg_msg(DEBUG, "Failed to set key.\n");
668 /* Should we verify the peer certificate ? */
669 if (conf->ssl_dont_verify_peer) {
671 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
673 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
675 #ifdef HAVE_PATHFINDER
676 if (conf->check_x509_path) {
678 (curl, CURLOPT_SSL_CTX_FUNCTION,
679 curl_ssl_ctx_function) != CURLE_OK) {
681 "Failed to set ssl path verification callback.\n");
683 curl_easy_setopt(curl,
684 CURLOPT_SSL_CTX_DATA,
691 /* certification authority file and/or path */
692 if (conf->ssl_ca_file) {
693 curl_easy_setopt(curl, CURLOPT_CAINFO,
696 if (conf->ssl_ca_path) {
697 curl_easy_setopt(curl, CURLOPT_CAPATH,
702 curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
703 curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
704 if (conf->http_proxy || conf->ftp_proxy) {
706 sprintf_alloc(&userpwd, "%s:%s", conf->proxy_user,
708 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
713 curl_easy_setopt(curl, CURLOPT_NOPROGRESS, (cb == NULL));
715 curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, data);
716 curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, cb);