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);
77 str_starts_with(const char *str, const char *prefix)
79 return (strncmp(str, prefix, strlen(prefix)) == 0);
83 opkg_download(const char *src, const char *dest_file_name,
84 curl_progress_func cb, void *data)
88 char *src_basec = xstrdup(src);
89 char *src_base = basename(src_basec);
90 char *tmp_file_location;
92 opkg_msg(NOTICE,"Downloading %s.\n", src);
94 if (str_starts_with(src, "file:")) {
95 const char *file_src = src + 5;
96 opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
97 err = file_copy(file_src, dest_file_name);
98 opkg_msg(INFO, "Done.\n");
103 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
105 err = unlink(tmp_file_location);
106 if (err && errno != ENOENT) {
107 opkg_perror(ERROR, "Failed to unlink %s", tmp_file_location);
108 free(tmp_file_location);
112 if (conf->http_proxy) {
113 opkg_msg(DEBUG, "Setting environment variable: http_proxy = %s.\n",
115 setenv("http_proxy", conf->http_proxy, 1);
117 if (conf->ftp_proxy) {
118 opkg_msg(DEBUG, "Setting environment variable: ftp_proxy = %s.\n",
120 setenv("ftp_proxy", conf->ftp_proxy, 1);
122 if (conf->no_proxy) {
123 opkg_msg(DEBUG,"Setting environment variable: no_proxy = %s.\n",
125 setenv("no_proxy", conf->no_proxy, 1);
130 FILE * file = fopen (tmp_file_location, "w");
132 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);
143 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
144 opkg_msg(ERROR, "Failed to download %s: %s.\n",
145 src, curl_easy_strerror(res));
146 free(tmp_file_location);
153 free(tmp_file_location);
164 if (conf->http_proxy || conf->ftp_proxy) {
169 argv[i++] = tmp_file_location;
175 opkg_msg(ERROR, "Failed to download %s, wget returned %d.\n", src, res);
176 free(tmp_file_location);
182 err = file_move(tmp_file_location, dest_file_name);
184 free(tmp_file_location);
190 opkg_download_cache(const char *src, const char *dest_file_name,
191 curl_progress_func cb, void *data)
193 char *cache_name = xstrdup(src);
194 char *cache_location, *p;
197 if (!conf->cache || str_starts_with(src, "file:")) {
198 err = opkg_download(src, dest_file_name, cb, data);
202 if(!file_is_dir(conf->cache)){
203 opkg_msg(ERROR, "%s is not a directory.\n",
209 for (p = cache_name; *p; p++)
211 *p = ','; /* looks nicer than | or # */
213 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
214 if (file_exists(cache_location))
215 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
217 err = opkg_download(src, cache_location, cb, data);
219 (void) unlink(cache_location);
224 err = file_copy(cache_location, dest_file_name);
228 free(cache_location);
235 opkg_download_pkg(pkg_t *pkg, const char *dir)
239 char *stripped_filename;
241 if (pkg->src == NULL) {
242 opkg_msg(ERROR, "Package %s is not available from any configured src.\n",
246 if (pkg->filename == NULL) {
247 opkg_msg(ERROR, "Package %s does not have a valid filename field.\n",
252 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
254 /* XXX: BUG: The pkg->filename might be something like
255 "../../foo.opk". While this is correct, and exactly what we
256 want to use to construct url above, here we actually need to
257 use just the filename part, without any directory. */
259 stripped_filename = strrchr(pkg->filename, '/');
260 if ( ! stripped_filename )
261 stripped_filename = pkg->filename;
263 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
265 err = opkg_download_cache(url, pkg->local_filename, NULL, NULL);
272 * Downloads file from url, installs in package database, return package name.
275 opkg_prepare_url_for_install(const char *url, char **namep)
282 if (str_starts_with(url, "http://")
283 || str_starts_with(url, "ftp://")) {
285 char *file_basec = xstrdup(url);
286 char *file_base = basename(file_basec);
288 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
289 err = opkg_download(url, tmp_file, NULL, NULL);
293 err = pkg_init_from_file(pkg, tmp_file);
300 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
301 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
302 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
304 err = pkg_init_from_file(pkg, url);
307 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
308 pkg->name, pkg->local_filename);
309 pkg->provided_by_hand = 1;
317 pkg->dest = conf->default_dest;
318 pkg->state_want = SW_INSTALL;
319 pkg->state_flag |= SF_PREFER;
320 hash_insert_pkg(pkg, 1);
329 opkg_verify_file (char *text_file, char *sig_file)
331 #if defined HAVE_GPGME
332 if (conf->check_signature == 0 )
336 gpgme_data_t sig, text, key;
338 gpgme_verify_result_t result;
340 char *trusted_path = NULL;
342 err = gpgme_new (&ctx);
347 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
348 err = gpgme_data_new_from_file (&key, trusted_path, 1);
354 err = gpgme_op_import (ctx, key);
357 gpgme_data_release (key);
360 gpgme_data_release (key);
362 err = gpgme_data_new_from_file (&sig, sig_file, 1);
369 err = gpgme_data_new_from_file (&text, text_file, 1);
372 gpgme_data_release (sig);
377 err = gpgme_op_verify (ctx, sig, text, NULL);
379 result = gpgme_op_verify_result (ctx);
383 /* see if any of the signitures matched */
384 s = result->signatures;
387 status = gpg_err_code (s->status);
388 if (status == GPG_ERR_NO_ERROR)
394 gpgme_data_release (sig);
395 gpgme_data_release (text);
399 #elif defined HAVE_OPENSSL
400 X509_STORE *store = NULL;
402 BIO *in = NULL, *indata = NULL;
404 // Sig check failed by default !
409 // Set-up the key store
410 if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
411 opkg_msg(ERROR, "Can't open CA certificates.\n");
412 goto verify_file_end;
415 // Open a BIO to read the sig file
416 if (!(in = BIO_new_file(sig_file, "rb"))){
417 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
418 goto verify_file_end;
421 // Read the PKCS7 block contained in the sig file
422 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
424 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
426 goto verify_file_end;
428 #if defined(HAVE_PATHFINDER)
429 if(conf->check_x509_path){
430 if(!pkcs7_pathfinder_verify_signers(p7)){
431 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
432 "Path verification failed.\n");
433 goto verify_file_end;
438 // Open the Package file to authenticate
439 if (!(indata = BIO_new_file(text_file, "rb"))){
440 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
441 goto verify_file_end;
444 // Let's verify the autenticity !
445 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
447 opkg_msg(ERROR, "Verification failure.\n");
457 X509_STORE_free(store);
461 /* mute `unused variable' warnings. */
470 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
471 static void openssl_init(void){
475 OPENSSL_config(NULL);
476 OpenSSL_add_all_algorithms();
477 ERR_load_crypto_strings();
485 #if defined HAVE_OPENSSL
487 setup_verify(char *CAfile, char *CApath)
489 X509_STORE *store = NULL;
490 X509_LOOKUP *lookup = NULL;
492 if(!(store = X509_STORE_new())){
493 // Something bad is happening...
497 // adds the X509 file lookup method
498 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
503 // Autenticating against one CA file
505 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
506 // Invalid CA => Bye bye
507 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
511 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
514 // Now look into CApath directory if supplied
515 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
521 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
522 opkg_msg(ERROR, "Error loading directory %s.\n", CApath);
526 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
535 X509_STORE_free(store);
543 void opkg_curl_cleanup(void){
545 curl_easy_cleanup (curl);
551 opkg_curl_init(curl_progress_func cb, void *data)
555 curl = curl_easy_init();
560 if (conf->ssl_engine) {
562 /* use crypto engine */
563 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
564 opkg_msg(ERROR, "Can't set crypto engine '%s'.\n",
570 /* set the crypto engine as default */
571 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
572 opkg_msg(ERROR, "Can't set crypto engine '%s' as default.\n",
580 /* cert & key can only be in PEM case in the same file */
581 if(conf->ssl_key_passwd){
582 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
584 opkg_msg(DEBUG, "Failed to set key password.\n");
588 /* sets the client certificate and its type */
589 if(conf->ssl_cert_type){
590 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
592 opkg_msg(DEBUG, "Failed to set certificate format.\n");
595 /* SSL cert name isn't mandatory */
597 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
600 /* sets the client key and its type */
601 if(conf->ssl_key_type){
602 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
604 opkg_msg(DEBUG, "Failed to set key format.\n");
608 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
610 opkg_msg(DEBUG, "Failed to set key.\n");
614 /* Should we verify the peer certificate ? */
615 if(conf->ssl_dont_verify_peer){
617 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
619 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
621 #ifdef HAVE_PATHFINDER
622 if(conf->check_x509_path){
623 if (curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_ssl_ctx_function) != CURLE_OK){
624 opkg_msg(DEBUG, "Failed to set ssl path verification callback.\n");
626 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, NULL);
632 /* certification authority file and/or path */
633 if(conf->ssl_ca_file){
634 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
636 if(conf->ssl_ca_path){
637 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
641 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
642 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
643 if (conf->http_proxy || conf->ftp_proxy)
646 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
648 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
653 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
656 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
657 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);