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 <curl/curl.h>
25 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
26 #include <openssl/conf.h>
27 #include <openssl/evp.h>
28 #include <openssl/err.h>
31 #if defined(HAVE_GPGME)
33 #elif defined(HAVE_OPENSSL)
34 #include <openssl/bio.h>
35 #include <openssl/objects.h>
36 #include <openssl/x509.h>
37 #include <openssl/pem.h>
38 #include <openssl/hmac.h>
42 #include "opkg_download.h"
43 #include "opkg_message.h"
45 #include "sprintf_alloc.h"
47 #include "file_util.h"
49 #include "opkg_defines.h"
50 #include "libbb/libbb.h"
52 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
53 static void openssl_init(void);
57 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath);
62 * Make curl an instance variable so we don't have to instanciate it
65 static CURL *curl = NULL;
66 static void opkg_curl_cleanup(void);
67 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data);
70 int opkg_download(opkg_conf_t *conf, const char *src,
71 const char *dest_file_name, curl_progress_func cb, void *data)
75 char *src_basec = xstrdup(src);
76 char *src_base = basename(src_basec);
77 char *tmp_file_location;
79 opkg_message(conf,OPKG_NOTICE,"Downloading %s\n", src);
81 if (str_starts_with(src, "file:")) {
83 const char *file_src = src + 5;
84 opkg_message(conf,OPKG_INFO,"Copying %s to %s...", file_src, dest_file_name);
85 ret = file_copy(src + 5, dest_file_name);
86 opkg_message(conf,OPKG_INFO,"Done\n");
91 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
92 err = unlink(tmp_file_location);
93 if (err && errno != ENOENT) {
94 opkg_message(conf,OPKG_ERROR, "%s: ERROR: failed to unlink %s: %s\n",
95 __FUNCTION__, tmp_file_location, strerror(errno));
96 free(tmp_file_location);
101 if (conf->http_proxy) {
102 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: http_proxy = %s\n", conf->http_proxy);
103 setenv("http_proxy", conf->http_proxy, 1);
105 if (conf->ftp_proxy) {
106 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: ftp_proxy = %s\n", conf->ftp_proxy);
107 setenv("ftp_proxy", conf->ftp_proxy, 1);
109 if (conf->no_proxy) {
110 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: no_proxy = %s\n", conf->no_proxy);
111 setenv("no_proxy", conf->no_proxy, 1);
117 FILE * file = fopen (tmp_file_location, "w");
119 curl = opkg_curl_init (conf, cb, data);
122 curl_easy_setopt (curl, CURLOPT_URL, src);
123 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
125 res = curl_easy_perform (curl);
130 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
131 opkg_message(conf, OPKG_ERROR, "Failed to download %s. \nerror detail: %s\n", src, curl_easy_strerror(res));
132 free(tmp_file_location);
140 free(tmp_file_location);
149 wgetopts = getenv("OPKG_WGETOPTS");
150 sprintf_alloc(&wgetcmd, "wget -q %s%s -O \"%s\" \"%s\"",
151 (conf->http_proxy || conf->ftp_proxy) ? "-Y on " : "",
152 (wgetopts!=NULL) ? wgetopts : "",
153 tmp_file_location, src);
154 opkg_message(conf, OPKG_INFO, "Executing: %s\n", wgetcmd);
155 res = xsystem(wgetcmd);
158 opkg_message(conf, OPKG_ERROR, "Failed to download %s, error %d\n", src, res);
159 free(tmp_file_location);
166 err = file_move(tmp_file_location, dest_file_name);
168 free(tmp_file_location);
178 static int opkg_download_cache(opkg_conf_t *conf, const char *src,
179 const char *dest_file_name, curl_progress_func cb, void *data)
181 char *cache_name = xstrdup(src);
182 char *cache_location, *p;
185 if (!conf->cache || str_starts_with(src, "file:")) {
186 err = opkg_download(conf, src, dest_file_name, cb, data);
190 for (p = cache_name; *p; p++)
192 *p = ','; /* looks nicer than | or # */
194 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
195 if (file_exists(cache_location))
196 opkg_message(conf, OPKG_NOTICE, "Copying %s\n", cache_location);
198 err = opkg_download(conf, src, cache_location, cb, data);
200 (void) unlink(cache_location);
205 err = file_copy(cache_location, dest_file_name);
209 free(cache_location);
215 int opkg_download_pkg(opkg_conf_t *conf, pkg_t *pkg, const char *dir)
219 char *stripped_filename;
221 if (pkg->src == NULL) {
222 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
223 pkg->name, pkg->parent->name);
226 if (pkg->filename == NULL) {
227 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) does not have a valid filename field.\n",pkg->name, pkg->parent->name);
231 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
233 /* XXX: BUG: The pkg->filename might be something like
234 "../../foo.opk". While this is correct, and exactly what we
235 want to use to construct url above, here we actually need to
236 use just the filename part, without any directory. */
238 stripped_filename = strrchr(pkg->filename, '/');
239 if ( ! stripped_filename )
240 stripped_filename = pkg->filename;
242 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
244 err = opkg_download_cache(conf, url, pkg->local_filename, NULL, NULL);
251 * Downloads file from url, installs in package database, return package name.
253 int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **namep)
261 if (str_starts_with(url, "http://")
262 || str_starts_with(url, "ftp://")) {
264 char *file_basec = xstrdup(url);
265 char *file_base = basename(file_basec);
267 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
268 err = opkg_download(conf, url, tmp_file, NULL, NULL);
272 err = pkg_init_from_file(pkg, tmp_file);
279 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
280 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
281 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
283 err = pkg_init_from_file(pkg, url);
286 opkg_message(conf, OPKG_DEBUG2, "Package %s provided by hand (%s).\n", pkg->name,pkg->local_filename);
287 pkg->provided_by_hand = 1;
295 if (!pkg->architecture) {
296 opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
300 pkg->dest = conf->default_dest;
301 pkg->state_want = SW_INSTALL;
302 pkg->state_flag |= SF_PREFER;
303 pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
305 fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
309 *namep = xstrdup(pkg->name);
315 opkg_verify_file (opkg_conf_t *conf, char *text_file, char *sig_file)
317 #if defined HAVE_GPGME
318 if (conf->check_signature == 0 )
322 gpgme_data_t sig, text, key;
323 gpgme_error_t err = -1;
324 gpgme_verify_result_t result;
326 char *trusted_path = NULL;
328 err = gpgme_new (&ctx);
333 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
334 err = gpgme_data_new_from_file (&key, trusted_path, 1);
340 err = gpgme_op_import (ctx, key);
343 gpgme_data_release (key);
346 gpgme_data_release (key);
348 err = gpgme_data_new_from_file (&sig, sig_file, 1);
355 err = gpgme_data_new_from_file (&text, text_file, 1);
358 gpgme_data_release (sig);
363 err = gpgme_op_verify (ctx, sig, text, NULL);
365 result = gpgme_op_verify_result (ctx);
369 /* see if any of the signitures matched */
370 s = result->signatures;
373 status = gpg_err_code (s->status);
374 if (status == GPG_ERR_NO_ERROR)
380 gpgme_data_release (sig);
381 gpgme_data_release (text);
385 #elif defined HAVE_OPENSSL
386 X509_STORE *store = NULL;
388 BIO *in = NULL, *indata = NULL;
390 // Sig check failed by default !
395 // Set-up the key store
396 if(!(store = setup_verify(conf, conf->signature_ca_file, conf->signature_ca_path))){
397 opkg_message(conf, OPKG_ERROR,
398 "Can't open CA certificates\n");
399 goto verify_file_end;
402 // Open a BIO to read the sig file
403 if (!(in = BIO_new_file(sig_file, "rb"))){
404 opkg_message(conf, OPKG_ERROR,
405 "Can't open signature file %s\n", sig_file);
406 goto verify_file_end;
409 // Read the PKCS7 block contained in the sig file
410 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
412 opkg_message(conf, OPKG_ERROR,
413 "Can't read signature file (Corrupted ?)\n");
414 goto verify_file_end;
417 // Open the Package file to authenticate
418 if (!(indata = BIO_new_file(text_file, "rb"))){
419 opkg_message(conf, OPKG_ERROR,
420 "Can't open file %s\n", text_file);
421 goto verify_file_end;
424 // Let's verify the autenticity !
425 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
427 opkg_message(conf, OPKG_ERROR,
428 "Verification failure\n");
438 X509_STORE_free(store);
442 /* mute `unused variable' warnings. */
451 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
452 static void openssl_init(void){
456 OPENSSL_config(NULL);
457 OpenSSL_add_all_algorithms();
458 ERR_load_crypto_strings();
466 #if defined HAVE_OPENSSL
467 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath){
468 X509_STORE *store = NULL;
469 X509_LOOKUP *lookup = NULL;
471 if(!(store = X509_STORE_new())){
472 // Something bad is happening...
476 // adds the X509 file lookup method
477 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
482 // Autenticating against one CA file
484 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
485 // Invalid CA => Bye bye
486 opkg_message(conf, OPKG_ERROR,
487 "Error loading file %s\n", CAfile);
491 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
494 // Now look into CApath directory if supplied
495 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
501 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
502 opkg_message(conf, OPKG_ERROR,
503 "Error loading directory %s\n", CApath);
507 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
516 X509_STORE_free(store);
524 static void opkg_curl_cleanup(void){
526 curl_easy_cleanup (curl);
531 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data){
534 curl = curl_easy_init();
539 if (conf->ssl_engine) {
541 /* use crypto engine */
542 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
543 opkg_message(conf, OPKG_ERROR, "can't set crypto engine: '%s'\n",
549 /* set the crypto engine as default */
550 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
551 opkg_message(conf, OPKG_ERROR, "can't set crypto engine as default\n");
558 /* cert & key can only be in PEM case in the same file */
559 if(conf->ssl_key_passwd){
560 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
562 opkg_message(conf, OPKG_DEBUG, "Failed to set key password\n");
566 /* sets the client certificate and its type */
567 if(conf->ssl_cert_type){
568 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
570 opkg_message(conf, OPKG_DEBUG, "Failed to set certificate format\n");
573 /* SSL cert name isn't mandatory */
575 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
578 /* sets the client key and its type */
579 if(conf->ssl_key_type){
580 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
582 opkg_message(conf, OPKG_DEBUG, "Failed to set key format\n");
586 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
588 opkg_message(conf, OPKG_DEBUG, "Failed to set key\n");
592 /* Should we verify the peer certificate ? */
593 if(conf->ssl_dont_verify_peer){
595 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
597 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
600 /* certification authority file and/or path */
601 if(conf->ssl_ca_file){
602 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
604 if(conf->ssl_ca_path){
605 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
609 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
610 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
611 if (conf->http_proxy || conf->ftp_proxy)
614 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
616 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
620 /* add curl cleanup callback */
621 if(!atexit(opkg_curl_cleanup)){
622 opkg_message(conf,OPKG_DEBUG, "Failed to register atexit curl cleanup function\n");
627 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
630 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
631 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);