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>
29 #include <openssl/ssl.h>
32 #if defined(HAVE_GPGME)
34 #elif defined(HAVE_OPENSSL)
35 #include <openssl/bio.h>
36 #include <openssl/objects.h>
37 #include <openssl/x509.h>
38 #include <openssl/pem.h>
39 #include <openssl/hmac.h>
43 #include "opkg_download.h"
44 #include "opkg_message.h"
46 #include "sprintf_alloc.h"
48 #include "file_util.h"
50 #include "opkg_defines.h"
51 #include "libbb/libbb.h"
53 #ifdef HAVE_PATHFINDER
54 #include "opkg_pathfinder.h"
57 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
58 static void openssl_init(void);
62 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath);
67 * Make curl an instance variable so we don't have to instanciate it
70 static CURL *curl = NULL;
71 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data);
74 int opkg_download(opkg_conf_t *conf, const char *src,
75 const char *dest_file_name, curl_progress_func cb, void *data)
79 char *src_basec = xstrdup(src);
80 char *src_base = basename(src_basec);
81 char *tmp_file_location;
83 opkg_message(conf,OPKG_NOTICE,"Downloading %s\n", src);
85 if (str_starts_with(src, "file:")) {
87 const char *file_src = src + 5;
88 opkg_message(conf,OPKG_INFO,"Copying %s to %s...", file_src, dest_file_name);
89 ret = file_copy(src + 5, dest_file_name);
90 opkg_message(conf,OPKG_INFO,"Done\n");
95 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
96 err = unlink(tmp_file_location);
97 if (err && errno != ENOENT) {
98 opkg_message(conf,OPKG_ERROR, "%s: ERROR: failed to unlink %s: %s\n",
99 __FUNCTION__, tmp_file_location, strerror(errno));
100 free(tmp_file_location);
105 if (conf->http_proxy) {
106 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: http_proxy = %s\n", conf->http_proxy);
107 setenv("http_proxy", conf->http_proxy, 1);
109 if (conf->ftp_proxy) {
110 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: ftp_proxy = %s\n", conf->ftp_proxy);
111 setenv("ftp_proxy", conf->ftp_proxy, 1);
113 if (conf->no_proxy) {
114 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: no_proxy = %s\n", conf->no_proxy);
115 setenv("no_proxy", conf->no_proxy, 1);
120 FILE * file = fopen (tmp_file_location, "w");
122 curl = opkg_curl_init (conf, cb, data);
125 curl_easy_setopt (curl, CURLOPT_URL, src);
126 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
128 res = curl_easy_perform (curl);
133 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
134 opkg_message(conf, OPKG_ERROR, "Failed to download %s. \nerror detail: %s\n", src, curl_easy_strerror(res));
135 free(tmp_file_location);
143 free(tmp_file_location);
152 wgetopts = getenv("OPKG_WGETOPTS");
153 sprintf_alloc(&wgetcmd, "wget -q %s%s -O \"%s\" \"%s\"",
154 (conf->http_proxy || conf->ftp_proxy) ? "-Y on " : "",
155 (wgetopts!=NULL) ? wgetopts : "",
156 tmp_file_location, src);
157 opkg_message(conf, OPKG_INFO, "Executing: %s\n", wgetcmd);
158 res = xsystem(wgetcmd);
161 opkg_message(conf, OPKG_ERROR, "Failed to download %s, error %d\n", src, res);
162 free(tmp_file_location);
169 err = file_move(tmp_file_location, dest_file_name);
171 free(tmp_file_location);
181 static int opkg_download_cache(opkg_conf_t *conf, const char *src,
182 const char *dest_file_name, curl_progress_func cb, void *data)
184 char *cache_name = xstrdup(src);
185 char *cache_location, *p;
188 if (!conf->cache || str_starts_with(src, "file:")) {
189 err = opkg_download(conf, src, dest_file_name, cb, data);
193 for (p = cache_name; *p; p++)
195 *p = ','; /* looks nicer than | or # */
197 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
198 if (file_exists(cache_location))
199 opkg_message(conf, OPKG_NOTICE, "Copying %s\n", cache_location);
201 err = opkg_download(conf, src, cache_location, cb, data);
203 (void) unlink(cache_location);
208 err = file_copy(cache_location, dest_file_name);
212 free(cache_location);
218 int opkg_download_pkg(opkg_conf_t *conf, pkg_t *pkg, const char *dir)
222 char *stripped_filename;
224 if (pkg->src == NULL) {
225 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
226 pkg->name, pkg->parent->name);
229 if (pkg->filename == NULL) {
230 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) does not have a valid filename field.\n",pkg->name, pkg->parent->name);
234 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
236 /* XXX: BUG: The pkg->filename might be something like
237 "../../foo.opk". While this is correct, and exactly what we
238 want to use to construct url above, here we actually need to
239 use just the filename part, without any directory. */
241 stripped_filename = strrchr(pkg->filename, '/');
242 if ( ! stripped_filename )
243 stripped_filename = pkg->filename;
245 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
247 err = opkg_download_cache(conf, url, pkg->local_filename, NULL, NULL);
254 * Downloads file from url, installs in package database, return package name.
256 int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **namep)
263 if (str_starts_with(url, "http://")
264 || str_starts_with(url, "ftp://")) {
266 char *file_basec = xstrdup(url);
267 char *file_base = basename(file_basec);
269 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
270 err = opkg_download(conf, url, tmp_file, NULL, NULL);
274 err = pkg_init_from_file(pkg, tmp_file);
281 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
282 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
283 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
285 err = pkg_init_from_file(pkg, url);
288 opkg_message(conf, OPKG_DEBUG2, "Package %s provided by hand (%s).\n", pkg->name,pkg->local_filename);
289 pkg->provided_by_hand = 1;
297 if (!pkg->architecture) {
298 opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
302 pkg->dest = conf->default_dest;
303 pkg->state_want = SW_INSTALL;
304 pkg->state_flag |= SF_PREFER;
305 pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
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;
415 #if defined(HAVE_PATHFINDER)
416 if(conf->check_x509_path){
417 if(!pkcs7_pathfinder_verify_signers(p7)){
418 opkg_message(conf, OPKG_ERROR, "pkcs7_pathfinder_verify_signers: "
419 "Path verification failed\n");
420 goto verify_file_end;
425 // Open the Package file to authenticate
426 if (!(indata = BIO_new_file(text_file, "rb"))){
427 opkg_message(conf, OPKG_ERROR,
428 "Can't open file %s\n", text_file);
429 goto verify_file_end;
432 // Let's verify the autenticity !
433 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
435 opkg_message(conf, OPKG_ERROR,
436 "Verification failure\n");
446 X509_STORE_free(store);
450 /* mute `unused variable' warnings. */
459 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
460 static void openssl_init(void){
464 OPENSSL_config(NULL);
465 OpenSSL_add_all_algorithms();
466 ERR_load_crypto_strings();
474 #if defined HAVE_OPENSSL
475 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath){
476 X509_STORE *store = NULL;
477 X509_LOOKUP *lookup = NULL;
479 if(!(store = X509_STORE_new())){
480 // Something bad is happening...
484 // adds the X509 file lookup method
485 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
490 // Autenticating against one CA file
492 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
493 // Invalid CA => Bye bye
494 opkg_message(conf, OPKG_ERROR,
495 "Error loading file %s\n", CAfile);
499 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
502 // Now look into CApath directory if supplied
503 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
509 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
510 opkg_message(conf, OPKG_ERROR,
511 "Error loading directory %s\n", CApath);
515 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
524 X509_STORE_free(store);
532 void opkg_curl_cleanup(void){
534 curl_easy_cleanup (curl);
539 static CURL *opkg_curl_init(opkg_conf_t *conf, curl_progress_func cb, void *data){
542 curl = curl_easy_init();
547 if (conf->ssl_engine) {
549 /* use crypto engine */
550 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
551 opkg_message(conf, OPKG_ERROR, "can't set crypto engine: '%s'\n",
557 /* set the crypto engine as default */
558 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
559 opkg_message(conf, OPKG_ERROR, "can't set crypto engine as default\n");
566 /* cert & key can only be in PEM case in the same file */
567 if(conf->ssl_key_passwd){
568 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
570 opkg_message(conf, OPKG_DEBUG, "Failed to set key password\n");
574 /* sets the client certificate and its type */
575 if(conf->ssl_cert_type){
576 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
578 opkg_message(conf, OPKG_DEBUG, "Failed to set certificate format\n");
581 /* SSL cert name isn't mandatory */
583 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
586 /* sets the client key and its type */
587 if(conf->ssl_key_type){
588 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
590 opkg_message(conf, OPKG_DEBUG, "Failed to set key format\n");
594 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
596 opkg_message(conf, OPKG_DEBUG, "Failed to set key\n");
600 /* Should we verify the peer certificate ? */
601 if(conf->ssl_dont_verify_peer){
603 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
605 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
607 #ifdef HAVE_PATHFINDER
608 if(conf->check_x509_path){
609 if (curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_ssl_ctx_function) != CURLE_OK){
610 opkg_message(conf, OPKG_DEBUG, "Failed to set ssl path verification callback\n");
612 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, NULL);
618 /* certification authority file and/or path */
619 if(conf->ssl_ca_file){
620 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
622 if(conf->ssl_ca_path){
623 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
627 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
628 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
629 if (conf->http_proxy || conf->ftp_proxy)
632 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
634 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
639 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
642 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
643 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);