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.
25 #include "opkg_download.h"
26 #include "opkg_message.h"
28 #include "sprintf_alloc.h"
30 #include "file_util.h"
31 #include "opkg_defines.h"
32 #include "libbb/libbb.h"
35 #include <curl/curl.h>
38 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
39 #include <openssl/conf.h>
40 #include <openssl/evp.h>
41 #include <openssl/err.h>
42 #include <openssl/ssl.h>
45 #if defined(HAVE_OPENSSL)
46 #include <openssl/bio.h>
47 #include <openssl/objects.h>
48 #include <openssl/x509.h>
49 #include <openssl/pem.h>
50 #include <openssl/hmac.h>
53 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
54 static void openssl_init(void);
58 static X509_STORE
*setup_verify(char *CAfile
, char *CApath
);
63 * Make curl an instance variable so we don't have to instanciate it
66 static CURL
*curl
= NULL
;
67 static CURL
*opkg_curl_init(curl_progress_func cb
, void *data
);
70 static int str_starts_with(const char *str
, const char *prefix
)
72 return (strncmp(str
, prefix
, strlen(prefix
)) == 0);
76 opkg_download(const char *src
, const char *dest_file_name
,
77 curl_progress_func cb
, void *data
, const short hide_error
)
81 char *src_basec
= xstrdup(src
);
82 char *src_base
= basename(src_basec
);
83 char *tmp_file_location
;
85 opkg_msg(NOTICE
, "Downloading %s\n", src
);
87 if (str_starts_with(src
, "file:")) {
88 const char *file_src
= src
+ 5;
89 opkg_msg(INFO
, "Copying %s to %s...", file_src
, dest_file_name
);
90 err
= file_copy(file_src
, dest_file_name
);
91 opkg_msg(INFO
, "Done.\n");
96 sprintf_alloc(&tmp_file_location
, "%s/%s", conf
->tmp_dir
, src_base
);
98 err
= unlink(tmp_file_location
);
99 if (err
&& errno
!= ENOENT
) {
100 opkg_perror(ERROR
, "Failed to unlink %s", tmp_file_location
);
101 free(tmp_file_location
);
105 if (conf
->http_proxy
) {
107 "Setting environment variable: http_proxy = %s.\n",
109 setenv("http_proxy", conf
->http_proxy
, 1);
111 if (conf
->ftp_proxy
) {
113 "Setting environment variable: ftp_proxy = %s.\n",
115 setenv("ftp_proxy", conf
->ftp_proxy
, 1);
117 if (conf
->no_proxy
) {
119 "Setting environment variable: no_proxy = %s.\n",
121 setenv("no_proxy", conf
->no_proxy
, 1);
125 FILE *file
= fopen(tmp_file_location
, "w");
127 curl
= opkg_curl_init(cb
, data
);
129 curl_easy_setopt(curl
, CURLOPT_URL
, src
);
130 curl_easy_setopt(curl
, CURLOPT_WRITEDATA
, file
);
132 res
= curl_easy_perform(curl
);
136 curl_easy_getinfo(curl
, CURLINFO_RESPONSE_CODE
,
138 opkg_msg(hide_error
? DEBUG2
: ERROR
,
139 "Failed to download %s: %s.\n", src
,
140 curl_easy_strerror(res
));
141 free(tmp_file_location
);
146 free(tmp_file_location
);
157 if (conf
->http_proxy
|| conf
->ftp_proxy
) {
162 argv
[i
++] = tmp_file_location
;
169 "Failed to download %s, wget returned %d.\n",
173 "Check your network settings and connectivity.\n\n");
174 free(tmp_file_location
);
180 err
= file_move(tmp_file_location
, dest_file_name
);
182 free(tmp_file_location
);
188 opkg_download_cache(const char *src
, const char *dest_file_name
,
189 curl_progress_func cb
, void *data
)
191 char *cache_name
= xstrdup(src
);
192 char *cache_location
, *p
;
195 if (!conf
->cache
|| str_starts_with(src
, "file:")) {
196 err
= opkg_download(src
, dest_file_name
, cb
, data
, 0);
200 if (!file_is_dir(conf
->cache
)) {
201 opkg_msg(ERROR
, "%s is not a directory.\n", conf
->cache
);
206 for (p
= cache_name
; *p
; p
++)
208 *p
= ','; /* looks nicer than | or # */
210 sprintf_alloc(&cache_location
, "%s/%s", conf
->cache
, cache_name
);
211 if (file_exists(cache_location
))
212 opkg_msg(NOTICE
, "Copying %s.\n", cache_location
);
214 /* cache file with funky name not found, try simple name */
216 char *filename
= strrchr(dest_file_name
, '/');
218 cache_name
= xstrdup(filename
+ 1); // strip leading '/'
220 cache_name
= xstrdup(dest_file_name
);
221 free(cache_location
);
222 sprintf_alloc(&cache_location
, "%s/%s", conf
->cache
,
224 if (file_exists(cache_location
))
225 opkg_msg(NOTICE
, "Copying %s.\n", cache_location
);
227 err
= opkg_download(src
, cache_location
, cb
, data
, 0);
229 (void)unlink(cache_location
);
235 err
= file_copy(cache_location
, dest_file_name
);
238 free(cache_location
);
244 int opkg_download_pkg(pkg_t
* pkg
, const char *dir
)
248 char *local_filename
;
249 char *stripped_filename
;
252 if (pkg
->src
== NULL
) {
254 "Package %s is not available from any configured src.\n",
259 filename
= pkg_get_string(pkg
, PKG_FILENAME
);
261 if (filename
== NULL
) {
263 "Package %s does not have a valid filename field.\n",
268 sprintf_alloc(&url
, "%s/%s", pkg
->src
->value
, filename
);
270 /* The filename might be something like
271 "../../foo.opk". While this is correct, and exactly what we
272 want to use to construct url above, here we actually need to
273 use just the filename part, without any directory. */
275 stripped_filename
= strrchr(filename
, '/');
276 if (!stripped_filename
)
277 stripped_filename
= filename
;
279 sprintf_alloc(&local_filename
, "%s/%s", dir
, stripped_filename
);
280 pkg_set_string(pkg
, PKG_LOCAL_FILENAME
, local_filename
);
282 err
= opkg_download_cache(url
, local_filename
, NULL
, NULL
);
289 * Downloads file from url, installs in package database, return package name.
291 int opkg_prepare_url_for_install(const char *url
, char **namep
)
295 abstract_pkg_t
*ab_pkg
;
299 if (str_starts_with(url
, "http://")
300 || str_starts_with(url
, "ftp://")) {
302 char *file_basec
= xstrdup(url
);
303 char *file_base
= basename(file_basec
);
305 sprintf_alloc(&tmp_file
, "%s/%s", conf
->tmp_dir
, file_base
);
306 err
= opkg_download(url
, tmp_file
, NULL
, NULL
, 0);
310 err
= pkg_init_from_file(pkg
, tmp_file
);
317 } else if (strcmp(&url
[strlen(url
) - 4], OPKG_PKG_EXTENSION
) == 0
318 || strcmp(&url
[strlen(url
) - 4], IPKG_PKG_EXTENSION
) == 0
319 || strcmp(&url
[strlen(url
) - 4], DPKG_PKG_EXTENSION
) == 0) {
321 err
= pkg_init_from_file(pkg
, url
);
324 opkg_msg(DEBUG2
, "Package %s provided by hand (%s).\n",
325 pkg
->name
, pkg_get_string(pkg
, PKG_LOCAL_FILENAME
));
326 pkg
->provided_by_hand
= 1;
329 ab_pkg
= ensure_abstract_pkg_by_name(url
);
331 if (!(ab_pkg
->state_flag
& SF_NEED_DETAIL
)) {
332 opkg_msg(DEBUG
, "applying abpkg flag to %s\n", ab_pkg
->name
);
333 ab_pkg
->state_flag
|= SF_NEED_DETAIL
;
341 pkg
->dest
= conf
->default_dest
;
342 pkg
->state_want
= SW_INSTALL
;
343 pkg
->state_flag
|= SF_PREFER
;
344 hash_insert_pkg(pkg
, 1);
347 *namep
= xstrdup(pkg
->name
);
352 int opkg_verify_file(char *text_file
, char *sig_file
)
354 #if defined HAVE_USIGN
358 if (conf
->check_signature
== 0)
366 execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file
,
371 waitpid(pid
, &status
, 0);
372 if (!WIFEXITED(status
) || WEXITSTATUS(status
))
376 #elif defined HAVE_OPENSSL
377 X509_STORE
*store
= NULL
;
379 BIO
*in
= NULL
, *indata
= NULL
;
381 // Sig check failed by default !
386 // Set-up the key store
389 setup_verify(conf
->signature_ca_file
, conf
->signature_ca_path
))) {
390 opkg_msg(ERROR
, "Can't open CA certificates.\n");
391 goto verify_file_end
;
393 // Open a BIO to read the sig file
394 if (!(in
= BIO_new_file(sig_file
, "rb"))) {
395 opkg_msg(ERROR
, "Can't open signature file %s.\n", sig_file
);
396 goto verify_file_end
;
398 // Read the PKCS7 block contained in the sig file
399 p7
= PEM_read_bio_PKCS7(in
, NULL
, NULL
, NULL
);
401 opkg_msg(ERROR
, "Can't read signature file %s (Corrupted ?).\n",
403 goto verify_file_end
;
406 // Open the Package file to authenticate
407 if (!(indata
= BIO_new_file(text_file
, "rb"))) {
408 opkg_msg(ERROR
, "Can't open file %s.\n", text_file
);
409 goto verify_file_end
;
411 // Let's verify the autenticity !
412 if (PKCS7_verify(p7
, NULL
, store
, indata
, NULL
, PKCS7_BINARY
) != 1) {
414 opkg_msg(ERROR
, "Verification failure.\n");
424 X509_STORE_free(store
);
428 /* mute `unused variable' warnings. */
436 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
437 static void openssl_init(void)
442 OPENSSL_config(NULL
);
443 OpenSSL_add_all_algorithms();
444 ERR_load_crypto_strings();
451 #if defined HAVE_OPENSSL
452 static X509_STORE
*setup_verify(char *CAfile
, char *CApath
)
454 X509_STORE
*store
= NULL
;
455 X509_LOOKUP
*lookup
= NULL
;
457 if (!(store
= X509_STORE_new())) {
458 // Something bad is happening...
461 // adds the X509 file lookup method
462 lookup
= X509_STORE_add_lookup(store
, X509_LOOKUP_file());
463 if (lookup
== NULL
) {
466 // Autenticating against one CA file
468 if (!X509_LOOKUP_load_file(lookup
, CAfile
, X509_FILETYPE_PEM
)) {
469 // Invalid CA => Bye bye
470 opkg_msg(ERROR
, "Error loading file %s.\n", CAfile
);
474 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
477 // Now look into CApath directory if supplied
478 lookup
= X509_STORE_add_lookup(store
, X509_LOOKUP_hash_dir());
479 if (lookup
== NULL
) {
484 if (!X509_LOOKUP_add_dir(lookup
, CApath
, X509_FILETYPE_PEM
)) {
485 opkg_msg(ERROR
, "Error loading directory %s.\n",
490 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
499 X509_STORE_free(store
);
507 void opkg_curl_cleanup(void)
510 curl_easy_cleanup(curl
);
515 static CURL
*opkg_curl_init(curl_progress_func cb
, void *data
)
519 curl
= curl_easy_init();
524 if (conf
->ssl_engine
) {
526 /* use crypto engine */
528 (curl
, CURLOPT_SSLENGINE
,
529 conf
->ssl_engine
) != CURLE_OK
) {
531 "Can't set crypto engine '%s'.\n",
537 /* set the crypto engine as default */
539 (curl
, CURLOPT_SSLENGINE_DEFAULT
, 1L) != CURLE_OK
) {
541 "Can't set crypto engine '%s' as default.\n",
549 /* cert & key can only be in PEM case in the same file */
550 if (conf
->ssl_key_passwd
) {
552 (curl
, CURLOPT_SSLKEYPASSWD
,
553 conf
->ssl_key_passwd
) != CURLE_OK
) {
555 "Failed to set key password.\n");
559 /* sets the client certificate and its type */
560 if (conf
->ssl_cert_type
) {
562 (curl
, CURLOPT_SSLCERTTYPE
,
563 conf
->ssl_cert_type
) != CURLE_OK
) {
565 "Failed to set certificate format.\n");
568 /* SSL cert name isn't mandatory */
569 if (conf
->ssl_cert
) {
570 curl_easy_setopt(curl
, CURLOPT_SSLCERT
, conf
->ssl_cert
);
573 /* sets the client key and its type */
574 if (conf
->ssl_key_type
) {
576 (curl
, CURLOPT_SSLKEYTYPE
,
577 conf
->ssl_key_type
) != CURLE_OK
) {
578 opkg_msg(DEBUG
, "Failed to set key format.\n");
583 (curl
, CURLOPT_SSLKEY
, conf
->ssl_key
) != CURLE_OK
) {
584 opkg_msg(DEBUG
, "Failed to set key.\n");
588 /* Should we verify the peer certificate ? */
589 if (conf
->ssl_dont_verify_peer
) {
591 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
593 curl_easy_setopt(curl
, CURLOPT_SSL_VERIFYPEER
, 0);
596 /* certification authority file and/or path */
597 if (conf
->ssl_ca_file
) {
598 curl_easy_setopt(curl
, CURLOPT_CAINFO
,
601 if (conf
->ssl_ca_path
) {
602 curl_easy_setopt(curl
, CURLOPT_CAPATH
,
607 curl_easy_setopt(curl
, CURLOPT_FOLLOWLOCATION
, 1);
608 curl_easy_setopt(curl
, CURLOPT_FAILONERROR
, 1);
609 if (conf
->http_proxy
|| conf
->ftp_proxy
) {
611 sprintf_alloc(&userpwd
, "%s:%s", conf
->proxy_user
,
613 curl_easy_setopt(curl
, CURLOPT_PROXYUSERPWD
, userpwd
);
618 curl_easy_setopt(curl
, CURLOPT_NOPROGRESS
, (cb
== NULL
));
620 curl_easy_setopt(curl
, CURLOPT_PROGRESSDATA
, data
);
621 curl_easy_setopt(curl
, CURLOPT_PROGRESSFUNCTION
, cb
);