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"
51 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
52 static void openssl_init(void);
56 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath);
61 * Make curl an instance variable so we don't have to instanciate it
64 static CURL *curl = NULL;
65 static void opkg_curl_cleanup(void);
66 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data);
69 int opkg_download(opkg_conf_t *conf, const char *src,
70 const char *dest_file_name, curl_progress_func cb, void *data)
74 char *src_basec = strdup(src);
75 char *src_base = basename(src_basec);
76 char *tmp_file_location;
78 opkg_message(conf,OPKG_NOTICE,"Downloading %s\n", src);
80 if (str_starts_with(src, "file:")) {
82 const char *file_src = src + 5;
83 opkg_message(conf,OPKG_INFO,"Copying %s to %s...", file_src, dest_file_name);
84 ret = file_copy(src + 5, dest_file_name);
85 opkg_message(conf,OPKG_INFO,"Done\n");
90 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
91 err = unlink(tmp_file_location);
92 if (err && errno != ENOENT) {
93 opkg_message(conf,OPKG_ERROR, "%s: ERROR: failed to unlink %s: %s\n",
94 __FUNCTION__, tmp_file_location, strerror(errno));
95 free(tmp_file_location);
100 if (conf->http_proxy) {
101 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: http_proxy = %s\n", conf->http_proxy);
102 setenv("http_proxy", conf->http_proxy, 1);
104 if (conf->ftp_proxy) {
105 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: ftp_proxy = %s\n", conf->ftp_proxy);
106 setenv("ftp_proxy", conf->ftp_proxy, 1);
108 if (conf->no_proxy) {
109 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: no_proxy = %s\n", conf->no_proxy);
110 setenv("no_proxy", conf->no_proxy, 1);
116 FILE * file = fopen (tmp_file_location, "w");
118 curl = opkg_curl_init (conf, cb, data);
121 curl_easy_setopt (curl, CURLOPT_URL, src);
122 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
124 res = curl_easy_perform (curl);
129 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
130 opkg_message(conf, OPKG_ERROR, "Failed to download %s. \nerror detail: %s\n", src, curl_easy_strerror(res));
131 free(tmp_file_location);
139 free(tmp_file_location);
148 wgetopts = getenv("OPKG_WGETOPTS");
149 sprintf_alloc(&wgetcmd, "wget -q %s%s -O \"%s\" \"%s\"",
150 (conf->http_proxy || conf->ftp_proxy) ? "-Y on " : "",
151 (wgetopts!=NULL) ? wgetopts : "",
152 tmp_file_location, src);
153 opkg_message(conf, OPKG_INFO, "Executing: %s\n", wgetcmd);
154 res = xsystem(wgetcmd);
157 opkg_message(conf, OPKG_ERROR, "Failed to download %s, error %d\n", src, res);
158 free(tmp_file_location);
165 err = file_move(tmp_file_location, dest_file_name);
167 free(tmp_file_location);
177 static int opkg_download_cache(opkg_conf_t *conf, const char *src,
178 const char *dest_file_name, curl_progress_func cb, void *data)
180 char *cache_name = strdup(src);
181 char *cache_location, *p;
184 if (!conf->cache || str_starts_with(src, "file:")) {
185 err = opkg_download(conf, src, dest_file_name, cb, data);
189 for (p = cache_name; *p; p++)
191 *p = ','; /* looks nicer than | or # */
193 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
194 if (file_exists(cache_location))
195 opkg_message(conf, OPKG_NOTICE, "Copying %s\n", cache_location);
197 err = opkg_download(conf, src, cache_location, cb, data);
199 (void) unlink(cache_location);
204 err = file_copy(cache_location, dest_file_name);
208 free(cache_location);
214 int opkg_download_pkg(opkg_conf_t *conf, pkg_t *pkg, const char *dir)
218 char *stripped_filename;
220 if (pkg->src == NULL) {
221 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
222 pkg->name, pkg->parent->name);
225 if (pkg->filename == NULL) {
226 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) does not have a valid filename field.\n",pkg->name, pkg->parent->name);
230 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
232 /* XXX: BUG: The pkg->filename might be something like
233 "../../foo.opk". While this is correct, and exactly what we
234 want to use to construct url above, here we actually need to
235 use just the filename part, without any directory. */
237 stripped_filename = strrchr(pkg->filename, '/');
238 if ( ! stripped_filename )
239 stripped_filename = pkg->filename;
241 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
243 err = opkg_download_cache(conf, url, pkg->local_filename, NULL, NULL);
250 * Downloads file from url, installs in package database, return package name.
252 int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **namep)
260 if (str_starts_with(url, "http://")
261 || str_starts_with(url, "ftp://")) {
263 char *file_basec = strdup(url);
264 char *file_base = basename(file_basec);
266 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
267 err = opkg_download(conf, url, tmp_file, NULL, NULL);
271 err = pkg_init_from_file(pkg, tmp_file);
278 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
279 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
280 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
282 err = pkg_init_from_file(pkg, url);
285 opkg_message(conf, OPKG_DEBUG2, "Package %s provided by hand (%s).\n", pkg->name,pkg->local_filename);
286 pkg->provided_by_hand = 1;
294 if (!pkg->architecture) {
295 opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
299 pkg->dest = conf->default_dest;
300 pkg->state_want = SW_INSTALL;
301 pkg->state_flag |= SF_PREFER;
302 pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
304 fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
308 *namep = strdup(pkg->name);
314 opkg_verify_file (opkg_conf_t *conf, char *text_file, char *sig_file)
316 #if defined HAVE_GPGME
317 if (conf->check_signature == 0 )
321 gpgme_data_t sig, text, key;
322 gpgme_error_t err = -1;
323 gpgme_verify_result_t result;
325 char *trusted_path = NULL;
327 err = gpgme_new (&ctx);
332 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
333 err = gpgme_data_new_from_file (&key, trusted_path, 1);
339 err = gpgme_op_import (ctx, key);
342 gpgme_data_release (key);
345 gpgme_data_release (key);
347 err = gpgme_data_new_from_file (&sig, sig_file, 1);
354 err = gpgme_data_new_from_file (&text, text_file, 1);
357 gpgme_data_release (sig);
362 err = gpgme_op_verify (ctx, sig, text, NULL);
364 result = gpgme_op_verify_result (ctx);
368 /* see if any of the signitures matched */
369 s = result->signatures;
372 status = gpg_err_code (s->status);
373 if (status == GPG_ERR_NO_ERROR)
379 gpgme_data_release (sig);
380 gpgme_data_release (text);
384 #elif defined HAVE_OPENSSL
385 X509_STORE *store = NULL;
387 BIO *in = NULL, *indata = NULL;
389 // Sig check failed by default !
394 // Set-up the key store
395 if(!(store = setup_verify(conf, conf->signature_ca_file, conf->signature_ca_path))){
396 opkg_message(conf, OPKG_ERROR,
397 "Can't open CA certificates\n");
398 goto verify_file_end;
401 // Open a BIO to read the sig file
402 if (!(in = BIO_new_file(sig_file, "rb"))){
403 opkg_message(conf, OPKG_ERROR,
404 "Can't open signature file %s\n", sig_file);
405 goto verify_file_end;
408 // Read the PKCS7 block contained in the sig file
409 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
411 opkg_message(conf, OPKG_ERROR,
412 "Can't read signature file (Corrupted ?)\n");
413 goto verify_file_end;
416 // Open the Package file to authenticate
417 if (!(indata = BIO_new_file(text_file, "rb"))){
418 opkg_message(conf, OPKG_ERROR,
419 "Can't open file %s\n", text_file);
420 goto verify_file_end;
423 // Let's verify the autenticity !
424 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
426 opkg_message(conf, OPKG_ERROR,
427 "Verification failure\n");
437 X509_STORE_free(store);
441 /* mute `unused variable' warnings. */
450 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
451 static void openssl_init(void){
455 OPENSSL_config(NULL);
456 OpenSSL_add_all_algorithms();
457 ERR_load_crypto_strings();
465 #if defined HAVE_OPENSSL
466 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath){
467 X509_STORE *store = NULL;
468 X509_LOOKUP *lookup = NULL;
470 if(!(store = X509_STORE_new())){
471 // Something bad is happening...
475 // adds the X509 file lookup method
476 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
481 // Autenticating against one CA file
483 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
484 // Invalid CA => Bye bye
485 opkg_message(conf, OPKG_ERROR,
486 "Error loading file %s\n", CAfile);
490 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
493 // Now look into CApath directory if supplied
494 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
500 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
501 opkg_message(conf, OPKG_ERROR,
502 "Error loading directory %s\n", CApath);
506 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
515 X509_STORE_free(store);
523 static void opkg_curl_cleanup(void){
525 curl_easy_cleanup (curl);
530 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data){
533 curl = curl_easy_init();
538 if (conf->ssl_engine) {
540 /* use crypto engine */
541 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
542 opkg_message(conf, OPKG_ERROR, "can't set crypto engine: '%s'\n",
548 /* set the crypto engine as default */
549 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
550 opkg_message(conf, OPKG_ERROR, "can't set crypto engine as default\n");
557 /* cert & key can only be in PEM case in the same file */
558 if(conf->ssl_key_passwd){
559 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
561 opkg_message(conf, OPKG_DEBUG, "Failed to set key password\n");
565 /* sets the client certificate and its type */
566 if(conf->ssl_cert_type){
567 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
569 opkg_message(conf, OPKG_DEBUG, "Failed to set certificate format\n");
572 /* SSL cert name isn't mandatory */
574 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
577 /* sets the client key and its type */
578 if(conf->ssl_key_type){
579 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
581 opkg_message(conf, OPKG_DEBUG, "Failed to set key format\n");
585 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
587 opkg_message(conf, OPKG_DEBUG, "Failed to set key\n");
591 /* Should we verify the peer certificate ? */
592 if(conf->ssl_dont_verify_peer){
594 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
596 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
599 /* certification authority file and/or path */
600 if(conf->ssl_ca_file){
601 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
603 if(conf->ssl_ca_path){
604 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
608 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
609 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
610 if (conf->http_proxy || conf->ftp_proxy)
613 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
615 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
619 /* add curl cleanup callback */
620 if(!atexit(opkg_curl_cleanup)){
621 opkg_message(conf,OPKG_DEBUG, "Failed to register atexit curl cleanup function\n");
626 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
629 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
630 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);