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 void opkg_curl_cleanup(void);
72 static CURL
*opkg_curl_init(opkg_conf_t
*conf
, curl_progress_func cb
, void *data
);
75 int opkg_download(opkg_conf_t
*conf
, const char *src
,
76 const char *dest_file_name
, curl_progress_func cb
, void *data
)
80 char *src_basec
= xstrdup(src
);
81 char *src_base
= basename(src_basec
);
82 char *tmp_file_location
;
84 opkg_message(conf
,OPKG_NOTICE
,"Downloading %s\n", src
);
86 if (str_starts_with(src
, "file:")) {
88 const char *file_src
= src
+ 5;
89 opkg_message(conf
,OPKG_INFO
,"Copying %s to %s...", file_src
, dest_file_name
);
90 ret
= file_copy(src
+ 5, dest_file_name
);
91 opkg_message(conf
,OPKG_INFO
,"Done\n");
96 sprintf_alloc(&tmp_file_location
, "%s/%s", conf
->tmp_dir
, src_base
);
97 err
= unlink(tmp_file_location
);
98 if (err
&& errno
!= ENOENT
) {
99 opkg_message(conf
,OPKG_ERROR
, "%s: ERROR: failed to unlink %s: %s\n",
100 __FUNCTION__
, tmp_file_location
, strerror(errno
));
101 free(tmp_file_location
);
106 if (conf
->http_proxy
) {
107 opkg_message(conf
,OPKG_DEBUG
,"Setting environment variable: http_proxy = %s\n", conf
->http_proxy
);
108 setenv("http_proxy", conf
->http_proxy
, 1);
110 if (conf
->ftp_proxy
) {
111 opkg_message(conf
,OPKG_DEBUG
,"Setting environment variable: ftp_proxy = %s\n", conf
->ftp_proxy
);
112 setenv("ftp_proxy", conf
->ftp_proxy
, 1);
114 if (conf
->no_proxy
) {
115 opkg_message(conf
,OPKG_DEBUG
,"Setting environment variable: no_proxy = %s\n", conf
->no_proxy
);
116 setenv("no_proxy", conf
->no_proxy
, 1);
121 FILE * file
= fopen (tmp_file_location
, "w");
123 curl
= opkg_curl_init (conf
, cb
, data
);
126 curl_easy_setopt (curl
, CURLOPT_URL
, src
);
127 curl_easy_setopt (curl
, CURLOPT_WRITEDATA
, file
);
129 res
= curl_easy_perform (curl
);
134 curl_easy_getinfo(curl
, CURLINFO_RESPONSE_CODE
, &error_code
);
135 opkg_message(conf
, OPKG_ERROR
, "Failed to download %s. \nerror detail: %s\n", src
, curl_easy_strerror(res
));
136 free(tmp_file_location
);
144 free(tmp_file_location
);
153 wgetopts
= getenv("OPKG_WGETOPTS");
154 sprintf_alloc(&wgetcmd
, "wget -q %s%s -O \"%s\" \"%s\"",
155 (conf
->http_proxy
|| conf
->ftp_proxy
) ? "-Y on " : "",
156 (wgetopts
!=NULL
) ? wgetopts
: "",
157 tmp_file_location
, src
);
158 opkg_message(conf
, OPKG_INFO
, "Executing: %s\n", wgetcmd
);
159 res
= xsystem(wgetcmd
);
162 opkg_message(conf
, OPKG_ERROR
, "Failed to download %s, error %d\n", src
, res
);
163 free(tmp_file_location
);
170 err
= file_move(tmp_file_location
, dest_file_name
);
172 free(tmp_file_location
);
182 static int opkg_download_cache(opkg_conf_t
*conf
, const char *src
,
183 const char *dest_file_name
, curl_progress_func cb
, void *data
)
185 char *cache_name
= xstrdup(src
);
186 char *cache_location
, *p
;
189 if (!conf
->cache
|| str_starts_with(src
, "file:")) {
190 err
= opkg_download(conf
, src
, dest_file_name
, cb
, data
);
194 for (p
= cache_name
; *p
; p
++)
196 *p
= ','; /* looks nicer than | or # */
198 sprintf_alloc(&cache_location
, "%s/%s", conf
->cache
, cache_name
);
199 if (file_exists(cache_location
))
200 opkg_message(conf
, OPKG_NOTICE
, "Copying %s\n", cache_location
);
202 err
= opkg_download(conf
, src
, cache_location
, cb
, data
);
204 (void) unlink(cache_location
);
209 err
= file_copy(cache_location
, dest_file_name
);
213 free(cache_location
);
219 int opkg_download_pkg(opkg_conf_t
*conf
, pkg_t
*pkg
, const char *dir
)
223 char *stripped_filename
;
225 if (pkg
->src
== NULL
) {
226 opkg_message(conf
,OPKG_ERROR
, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
227 pkg
->name
, pkg
->parent
->name
);
230 if (pkg
->filename
== NULL
) {
231 opkg_message(conf
,OPKG_ERROR
, "ERROR: Package %s (parent %s) does not have a valid filename field.\n",pkg
->name
, pkg
->parent
->name
);
235 sprintf_alloc(&url
, "%s/%s", pkg
->src
->value
, pkg
->filename
);
237 /* XXX: BUG: The pkg->filename might be something like
238 "../../foo.opk". While this is correct, and exactly what we
239 want to use to construct url above, here we actually need to
240 use just the filename part, without any directory. */
242 stripped_filename
= strrchr(pkg
->filename
, '/');
243 if ( ! stripped_filename
)
244 stripped_filename
= pkg
->filename
;
246 sprintf_alloc(&pkg
->local_filename
, "%s/%s", dir
, stripped_filename
);
248 err
= opkg_download_cache(conf
, url
, pkg
->local_filename
, NULL
, NULL
);
255 * Downloads file from url, installs in package database, return package name.
257 int opkg_prepare_url_for_install(opkg_conf_t
*conf
, const char *url
, char **namep
)
264 if (str_starts_with(url
, "http://")
265 || str_starts_with(url
, "ftp://")) {
267 char *file_basec
= xstrdup(url
);
268 char *file_base
= basename(file_basec
);
270 sprintf_alloc(&tmp_file
, "%s/%s", conf
->tmp_dir
, file_base
);
271 err
= opkg_download(conf
, url
, tmp_file
, NULL
, NULL
);
275 err
= pkg_init_from_file(pkg
, tmp_file
);
282 } else if (strcmp(&url
[strlen(url
) - 4], OPKG_PKG_EXTENSION
) == 0
283 || strcmp(&url
[strlen(url
) - 4], IPKG_PKG_EXTENSION
) == 0
284 || strcmp(&url
[strlen(url
) - 4], DPKG_PKG_EXTENSION
) == 0) {
286 err
= pkg_init_from_file(pkg
, url
);
289 opkg_message(conf
, OPKG_DEBUG2
, "Package %s provided by hand (%s).\n", pkg
->name
,pkg
->local_filename
);
290 pkg
->provided_by_hand
= 1;
298 if (!pkg
->architecture
) {
299 opkg_message(conf
, OPKG_ERROR
, "Package %s has no Architecture defined.\n", pkg
->name
);
303 pkg
->dest
= conf
->default_dest
;
304 pkg
->state_want
= SW_INSTALL
;
305 pkg
->state_flag
|= SF_PREFER
;
306 pkg
= hash_insert_pkg(&conf
->pkg_hash
, pkg
, 1,conf
);
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
;
416 #if defined(HAVE_PATHFINDER)
417 if(conf
->check_x509_path
){
418 if(!pkcs7_pathfinder_verify_signers(p7
)){
419 opkg_message(conf
, OPKG_ERROR
, "pkcs7_pathfinder_verify_signers: "
420 "Path verification failed\n");
421 goto verify_file_end
;
426 // Open the Package file to authenticate
427 if (!(indata
= BIO_new_file(text_file
, "rb"))){
428 opkg_message(conf
, OPKG_ERROR
,
429 "Can't open file %s\n", text_file
);
430 goto verify_file_end
;
433 // Let's verify the autenticity !
434 if (PKCS7_verify(p7
, NULL
, store
, indata
, NULL
, PKCS7_BINARY
) != 1){
436 opkg_message(conf
, OPKG_ERROR
,
437 "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
476 static X509_STORE
*setup_verify(opkg_conf_t
*conf
, char *CAfile
, char *CApath
){
477 X509_STORE
*store
= NULL
;
478 X509_LOOKUP
*lookup
= NULL
;
480 if(!(store
= X509_STORE_new())){
481 // Something bad is happening...
485 // adds the X509 file lookup method
486 lookup
= X509_STORE_add_lookup(store
,X509_LOOKUP_file());
491 // Autenticating against one CA file
493 if(!X509_LOOKUP_load_file(lookup
,CAfile
,X509_FILETYPE_PEM
)) {
494 // Invalid CA => Bye bye
495 opkg_message(conf
, OPKG_ERROR
,
496 "Error loading file %s\n", CAfile
);
500 X509_LOOKUP_load_file(lookup
,NULL
,X509_FILETYPE_DEFAULT
);
503 // Now look into CApath directory if supplied
504 lookup
= X509_STORE_add_lookup(store
,X509_LOOKUP_hash_dir());
510 if(!X509_LOOKUP_add_dir(lookup
,CApath
,X509_FILETYPE_PEM
)) {
511 opkg_message(conf
, OPKG_ERROR
,
512 "Error loading directory %s\n", CApath
);
516 X509_LOOKUP_add_dir(lookup
,NULL
,X509_FILETYPE_DEFAULT
);
525 X509_STORE_free(store
);
533 static void opkg_curl_cleanup(void){
535 curl_easy_cleanup (curl
);
540 static CURL
*opkg_curl_init(opkg_conf_t
*conf
, curl_progress_func cb
, void *data
){
543 curl
= curl_easy_init();
548 if (conf
->ssl_engine
) {
550 /* use crypto engine */
551 if (curl_easy_setopt(curl
, CURLOPT_SSLENGINE
, conf
->ssl_engine
) != CURLE_OK
){
552 opkg_message(conf
, OPKG_ERROR
, "can't set crypto engine: '%s'\n",
558 /* set the crypto engine as default */
559 if (curl_easy_setopt(curl
, CURLOPT_SSLENGINE_DEFAULT
, 1L) != CURLE_OK
){
560 opkg_message(conf
, OPKG_ERROR
, "can't set crypto engine as default\n");
567 /* cert & key can only be in PEM case in the same file */
568 if(conf
->ssl_key_passwd
){
569 if (curl_easy_setopt(curl
, CURLOPT_SSLKEYPASSWD
, conf
->ssl_key_passwd
) != CURLE_OK
)
571 opkg_message(conf
, OPKG_DEBUG
, "Failed to set key password\n");
575 /* sets the client certificate and its type */
576 if(conf
->ssl_cert_type
){
577 if (curl_easy_setopt(curl
, CURLOPT_SSLCERTTYPE
, conf
->ssl_cert_type
) != CURLE_OK
)
579 opkg_message(conf
, OPKG_DEBUG
, "Failed to set certificate format\n");
582 /* SSL cert name isn't mandatory */
584 curl_easy_setopt(curl
, CURLOPT_SSLCERT
, conf
->ssl_cert
);
587 /* sets the client key and its type */
588 if(conf
->ssl_key_type
){
589 if (curl_easy_setopt(curl
, CURLOPT_SSLKEYTYPE
, conf
->ssl_key_type
) != CURLE_OK
)
591 opkg_message(conf
, OPKG_DEBUG
, "Failed to set key format\n");
595 if (curl_easy_setopt(curl
, CURLOPT_SSLKEY
, conf
->ssl_key
) != CURLE_OK
)
597 opkg_message(conf
, OPKG_DEBUG
, "Failed to set key\n");
601 /* Should we verify the peer certificate ? */
602 if(conf
->ssl_dont_verify_peer
){
604 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
606 curl_easy_setopt(curl
, CURLOPT_SSL_VERIFYPEER
, 0);
608 #ifdef HAVE_PATHFINDER
609 if(conf
->check_x509_path
){
610 if (curl_easy_setopt(curl
, CURLOPT_SSL_CTX_FUNCTION
, curl_ssl_ctx_function
) != CURLE_OK
){
611 opkg_message(conf
, OPKG_DEBUG
, "Failed to set ssl path verification callback\n");
613 curl_easy_setopt(curl
, CURLOPT_SSL_CTX_DATA
, NULL
);
619 /* certification authority file and/or path */
620 if(conf
->ssl_ca_file
){
621 curl_easy_setopt(curl
, CURLOPT_CAINFO
, conf
->ssl_ca_file
);
623 if(conf
->ssl_ca_path
){
624 curl_easy_setopt(curl
, CURLOPT_CAPATH
, conf
->ssl_ca_path
);
628 curl_easy_setopt (curl
, CURLOPT_FOLLOWLOCATION
, 1);
629 curl_easy_setopt (curl
, CURLOPT_FAILONERROR
, 1);
630 if (conf
->http_proxy
|| conf
->ftp_proxy
)
633 sprintf_alloc (&userpwd
, "%s:%s", conf
->proxy_user
,
635 curl_easy_setopt(curl
, CURLOPT_PROXYUSERPWD
, userpwd
);
639 /* add curl cleanup callback */
640 if(!atexit(opkg_curl_cleanup
)){
641 opkg_message(conf
,OPKG_DEBUG
, "Failed to register atexit curl cleanup function\n");
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
);