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 for (p = cache_name; *p; p++)
204 *p = ','; /* looks nicer than | or # */
206 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
207 if (file_exists(cache_location))
208 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
210 err = opkg_download(src, cache_location, cb, data);
212 (void) unlink(cache_location);
217 err = file_copy(cache_location, dest_file_name);
221 free(cache_location);
228 opkg_download_pkg(pkg_t *pkg, const char *dir)
232 char *stripped_filename;
234 if (pkg->src == NULL) {
235 opkg_msg(ERROR, "Package %s is not available from any configured src.\n",
239 if (pkg->filename == NULL) {
240 opkg_msg(ERROR, "Package %s does not have a valid filename field.\n",
245 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
247 /* XXX: BUG: The pkg->filename might be something like
248 "../../foo.opk". While this is correct, and exactly what we
249 want to use to construct url above, here we actually need to
250 use just the filename part, without any directory. */
252 stripped_filename = strrchr(pkg->filename, '/');
253 if ( ! stripped_filename )
254 stripped_filename = pkg->filename;
256 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
258 err = opkg_download_cache(url, pkg->local_filename, NULL, NULL);
265 * Downloads file from url, installs in package database, return package name.
268 opkg_prepare_url_for_install(const char *url, char **namep)
275 if (str_starts_with(url, "http://")
276 || str_starts_with(url, "ftp://")) {
278 char *file_basec = xstrdup(url);
279 char *file_base = basename(file_basec);
281 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
282 err = opkg_download(url, tmp_file, NULL, NULL);
286 err = pkg_init_from_file(pkg, tmp_file);
293 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
294 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
295 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
297 err = pkg_init_from_file(pkg, url);
300 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
301 pkg->name, pkg->local_filename);
302 pkg->provided_by_hand = 1;
310 pkg->dest = conf->default_dest;
311 pkg->state_want = SW_INSTALL;
312 pkg->state_flag |= SF_PREFER;
313 hash_insert_pkg(pkg, 1);
322 opkg_verify_file (char *text_file, char *sig_file)
324 #if defined HAVE_GPGME
325 if (conf->check_signature == 0 )
329 gpgme_data_t sig, text, key;
331 gpgme_verify_result_t result;
333 char *trusted_path = NULL;
335 err = gpgme_new (&ctx);
340 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
341 err = gpgme_data_new_from_file (&key, trusted_path, 1);
347 err = gpgme_op_import (ctx, key);
350 gpgme_data_release (key);
353 gpgme_data_release (key);
355 err = gpgme_data_new_from_file (&sig, sig_file, 1);
362 err = gpgme_data_new_from_file (&text, text_file, 1);
365 gpgme_data_release (sig);
370 err = gpgme_op_verify (ctx, sig, text, NULL);
372 result = gpgme_op_verify_result (ctx);
376 /* see if any of the signitures matched */
377 s = result->signatures;
380 status = gpg_err_code (s->status);
381 if (status == GPG_ERR_NO_ERROR)
387 gpgme_data_release (sig);
388 gpgme_data_release (text);
392 #elif defined HAVE_OPENSSL
393 X509_STORE *store = NULL;
395 BIO *in = NULL, *indata = NULL;
397 // Sig check failed by default !
402 // Set-up the key store
403 if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
404 opkg_msg(ERROR, "Can't open CA certificates.\n");
405 goto verify_file_end;
408 // Open a BIO to read the sig file
409 if (!(in = BIO_new_file(sig_file, "rb"))){
410 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
411 goto verify_file_end;
414 // Read the PKCS7 block contained in the sig file
415 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
417 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
419 goto verify_file_end;
421 #if defined(HAVE_PATHFINDER)
422 if(conf->check_x509_path){
423 if(!pkcs7_pathfinder_verify_signers(p7)){
424 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
425 "Path verification failed.\n");
426 goto verify_file_end;
431 // Open the Package file to authenticate
432 if (!(indata = BIO_new_file(text_file, "rb"))){
433 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
434 goto verify_file_end;
437 // Let's verify the autenticity !
438 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
440 opkg_msg(ERROR, "Verification failure.\n");
450 X509_STORE_free(store);
454 /* mute `unused variable' warnings. */
463 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
464 static void openssl_init(void){
468 OPENSSL_config(NULL);
469 OpenSSL_add_all_algorithms();
470 ERR_load_crypto_strings();
478 #if defined HAVE_OPENSSL
480 setup_verify(char *CAfile, char *CApath)
482 X509_STORE *store = NULL;
483 X509_LOOKUP *lookup = NULL;
485 if(!(store = X509_STORE_new())){
486 // Something bad is happening...
490 // adds the X509 file lookup method
491 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
496 // Autenticating against one CA file
498 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
499 // Invalid CA => Bye bye
500 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
504 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
507 // Now look into CApath directory if supplied
508 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
514 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
515 opkg_msg(ERROR, "Error loading directory %s.\n", CApath);
519 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
528 X509_STORE_free(store);
536 void opkg_curl_cleanup(void){
538 curl_easy_cleanup (curl);
544 opkg_curl_init(curl_progress_func cb, void *data)
548 curl = curl_easy_init();
553 if (conf->ssl_engine) {
555 /* use crypto engine */
556 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
557 opkg_msg(ERROR, "Can't set crypto engine '%s'.\n",
563 /* set the crypto engine as default */
564 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
565 opkg_msg(ERROR, "Can't set crypto engine '%s' as default.\n",
573 /* cert & key can only be in PEM case in the same file */
574 if(conf->ssl_key_passwd){
575 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
577 opkg_msg(DEBUG, "Failed to set key password.\n");
581 /* sets the client certificate and its type */
582 if(conf->ssl_cert_type){
583 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
585 opkg_msg(DEBUG, "Failed to set certificate format.\n");
588 /* SSL cert name isn't mandatory */
590 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
593 /* sets the client key and its type */
594 if(conf->ssl_key_type){
595 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
597 opkg_msg(DEBUG, "Failed to set key format.\n");
601 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
603 opkg_msg(DEBUG, "Failed to set key.\n");
607 /* Should we verify the peer certificate ? */
608 if(conf->ssl_dont_verify_peer){
610 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
612 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
614 #ifdef HAVE_PATHFINDER
615 if(conf->check_x509_path){
616 if (curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_ssl_ctx_function) != CURLE_OK){
617 opkg_msg(DEBUG, "Failed to set ssl path verification callback.\n");
619 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, NULL);
625 /* certification authority file and/or path */
626 if(conf->ssl_ca_file){
627 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
629 if(conf->ssl_ca_path){
630 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
634 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
635 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
636 if (conf->http_proxy || conf->ftp_proxy)
639 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
641 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
646 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
649 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
650 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);