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.
22 #include "opkg_download.h"
23 #include "opkg_message.h"
25 #include "sprintf_alloc.h"
27 #include "file_util.h"
28 #include "opkg_defines.h"
29 #include "libbb/libbb.h"
32 #include <curl/curl.h>
35 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
36 #include <openssl/conf.h>
37 #include <openssl/evp.h>
38 #include <openssl/err.h>
39 #include <openssl/ssl.h>
42 #if defined(HAVE_GPGME)
44 #elif defined(HAVE_OPENSSL)
45 #include <openssl/bio.h>
46 #include <openssl/objects.h>
47 #include <openssl/x509.h>
48 #include <openssl/pem.h>
49 #include <openssl/hmac.h>
52 #ifdef HAVE_PATHFINDER
53 #include "opkg_pathfinder.h"
56 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
57 static void openssl_init(void);
61 static X509_STORE *setup_verify(char *CAfile, char *CApath);
66 * Make curl an instance variable so we don't have to instanciate it
69 static CURL *curl = NULL;
70 static CURL *opkg_curl_init(curl_progress_func cb, void *data);
74 str_starts_with(const char *str, const char *prefix)
76 return (strncmp(str, prefix, strlen(prefix)) == 0);
80 opkg_download(const char *src, const char *dest_file_name,
81 curl_progress_func cb, void *data)
85 char *src_basec = xstrdup(src);
86 char *src_base = basename(src_basec);
87 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");
101 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
102 err = unlink(tmp_file_location);
103 if (err && errno != ENOENT) {
104 opkg_perror(ERROR, "Failed to unlink %s\n", tmp_file_location);
105 free(tmp_file_location);
109 if (conf->http_proxy) {
110 opkg_msg(DEBUG, "Setting environment variable: http_proxy = %s.\n",
112 setenv("http_proxy", conf->http_proxy, 1);
114 if (conf->ftp_proxy) {
115 opkg_msg(DEBUG, "Setting environment variable: ftp_proxy = %s.\n",
117 setenv("ftp_proxy", conf->ftp_proxy, 1);
119 if (conf->no_proxy) {
120 opkg_msg(DEBUG,"Setting environment variable: no_proxy = %s.\n",
122 setenv("no_proxy", conf->no_proxy, 1);
127 FILE * file = fopen (tmp_file_location, "w");
129 curl = opkg_curl_init (cb, data);
132 curl_easy_setopt (curl, CURLOPT_URL, src);
133 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
135 res = curl_easy_perform (curl);
140 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
141 opkg_msg(ERROR, "Failed to download %s: %s.\n",
142 src, curl_easy_strerror(res));
143 free(tmp_file_location);
150 free(tmp_file_location);
161 if (conf->http_proxy || conf->ftp_proxy) {
166 argv[i++] = tmp_file_location;
172 opkg_msg(ERROR, "Failed to download %s, wget returned %d.\n", src, res);
173 free(tmp_file_location);
179 err = file_move(tmp_file_location, dest_file_name);
181 free(tmp_file_location);
187 opkg_download_cache(const char *src, const char *dest_file_name,
188 curl_progress_func cb, void *data)
190 char *cache_name = xstrdup(src);
191 char *cache_location, *p;
194 if (!conf->cache || str_starts_with(src, "file:")) {
195 err = opkg_download(src, dest_file_name, cb, data);
199 for (p = cache_name; *p; p++)
201 *p = ','; /* looks nicer than | or # */
203 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
204 if (file_exists(cache_location))
205 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
207 err = opkg_download(src, cache_location, cb, data);
209 (void) unlink(cache_location);
214 err = file_copy(cache_location, dest_file_name);
218 free(cache_location);
225 opkg_download_pkg(pkg_t *pkg, const char *dir)
229 char *stripped_filename;
231 if (pkg->src == NULL) {
232 opkg_msg(ERROR, "Package %s is not available from any configured src.\n",
236 if (pkg->filename == NULL) {
237 opkg_msg(ERROR, "Package %s does not have a valid filename field.\n",
242 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
244 /* XXX: BUG: The pkg->filename might be something like
245 "../../foo.opk". While this is correct, and exactly what we
246 want to use to construct url above, here we actually need to
247 use just the filename part, without any directory. */
249 stripped_filename = strrchr(pkg->filename, '/');
250 if ( ! stripped_filename )
251 stripped_filename = pkg->filename;
253 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
255 err = opkg_download_cache(url, pkg->local_filename, NULL, NULL);
262 * Downloads file from url, installs in package database, return package name.
265 opkg_prepare_url_for_install(const char *url, char **namep)
272 if (str_starts_with(url, "http://")
273 || str_starts_with(url, "ftp://")) {
275 char *file_basec = xstrdup(url);
276 char *file_base = basename(file_basec);
278 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
279 err = opkg_download(url, tmp_file, NULL, NULL);
283 err = pkg_init_from_file(pkg, tmp_file);
290 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
291 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
292 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
294 err = pkg_init_from_file(pkg, url);
297 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
298 pkg->name, pkg->local_filename);
299 pkg->provided_by_hand = 1;
307 pkg->dest = conf->default_dest;
308 pkg->state_want = SW_INSTALL;
309 pkg->state_flag |= SF_PREFER;
310 hash_insert_pkg(pkg, 1);
319 opkg_verify_file (char *text_file, char *sig_file)
321 #if defined HAVE_GPGME
322 if (conf->check_signature == 0 )
326 gpgme_data_t sig, text, key;
328 gpgme_verify_result_t result;
330 char *trusted_path = NULL;
332 err = gpgme_new (&ctx);
337 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
338 err = gpgme_data_new_from_file (&key, trusted_path, 1);
344 err = gpgme_op_import (ctx, key);
347 gpgme_data_release (key);
350 gpgme_data_release (key);
352 err = gpgme_data_new_from_file (&sig, sig_file, 1);
359 err = gpgme_data_new_from_file (&text, text_file, 1);
362 gpgme_data_release (sig);
367 err = gpgme_op_verify (ctx, sig, text, NULL);
369 result = gpgme_op_verify_result (ctx);
373 /* see if any of the signitures matched */
374 s = result->signatures;
377 status = gpg_err_code (s->status);
378 if (status == GPG_ERR_NO_ERROR)
384 gpgme_data_release (sig);
385 gpgme_data_release (text);
389 #elif defined HAVE_OPENSSL
390 X509_STORE *store = NULL;
392 BIO *in = NULL, *indata = NULL;
394 // Sig check failed by default !
399 // Set-up the key store
400 if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
401 opkg_msg(ERROR, "Can't open CA certificates.\n");
402 goto verify_file_end;
405 // Open a BIO to read the sig file
406 if (!(in = BIO_new_file(sig_file, "rb"))){
407 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
408 goto verify_file_end;
411 // Read the PKCS7 block contained in the sig file
412 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
414 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
416 goto verify_file_end;
418 #if defined(HAVE_PATHFINDER)
419 if(conf->check_x509_path){
420 if(!pkcs7_pathfinder_verify_signers(p7)){
421 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
422 "Path verification failed.\n");
423 goto verify_file_end;
428 // Open the Package file to authenticate
429 if (!(indata = BIO_new_file(text_file, "rb"))){
430 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
431 goto verify_file_end;
434 // Let's verify the autenticity !
435 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
437 opkg_msg(ERROR, "Verification failure.\n");
447 X509_STORE_free(store);
451 /* mute `unused variable' warnings. */
460 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
461 static void openssl_init(void){
465 OPENSSL_config(NULL);
466 OpenSSL_add_all_algorithms();
467 ERR_load_crypto_strings();
475 #if defined HAVE_OPENSSL
477 setup_verify(char *CAfile, char *CApath)
479 X509_STORE *store = NULL;
480 X509_LOOKUP *lookup = NULL;
482 if(!(store = X509_STORE_new())){
483 // Something bad is happening...
487 // adds the X509 file lookup method
488 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
493 // Autenticating against one CA file
495 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
496 // Invalid CA => Bye bye
497 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
501 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
504 // Now look into CApath directory if supplied
505 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
511 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
512 opkg_msg(ERROR, "Error loading directory %s.\n", CApath);
516 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
525 X509_STORE_free(store);
533 void opkg_curl_cleanup(void){
535 curl_easy_cleanup (curl);
541 opkg_curl_init(curl_progress_func cb, void *data)
545 curl = curl_easy_init();
550 if (conf->ssl_engine) {
552 /* use crypto engine */
553 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
554 opkg_msg(ERROR, "Can't set crypto engine '%s'.\n",
560 /* set the crypto engine as default */
561 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
562 opkg_msg(ERROR, "Can't set crypto engine '%s' as default.\n",
570 /* cert & key can only be in PEM case in the same file */
571 if(conf->ssl_key_passwd){
572 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
574 opkg_msg(DEBUG, "Failed to set key password.\n");
578 /* sets the client certificate and its type */
579 if(conf->ssl_cert_type){
580 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
582 opkg_msg(DEBUG, "Failed to set certificate format.\n");
585 /* SSL cert name isn't mandatory */
587 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
590 /* sets the client key and its type */
591 if(conf->ssl_key_type){
592 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
594 opkg_msg(DEBUG, "Failed to set key format.\n");
598 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
600 opkg_msg(DEBUG, "Failed to set key.\n");
604 /* Should we verify the peer certificate ? */
605 if(conf->ssl_dont_verify_peer){
607 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
609 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
611 #ifdef HAVE_PATHFINDER
612 if(conf->check_x509_path){
613 if (curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_ssl_ctx_function) != CURLE_OK){
614 opkg_msg(DEBUG, "Failed to set ssl path verification callback.\n");
616 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, NULL);
622 /* certification authority file and/or path */
623 if(conf->ssl_ca_file){
624 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
626 if(conf->ssl_ca_path){
627 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
631 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
632 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
633 if (conf->http_proxy || conf->ftp_proxy)
636 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
638 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
643 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
646 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
647 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);