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.
21 #include <curl/curl.h>
23 #if defined(HAVE_GPGME)
25 #elif defined(HAVE_OPENSSL)
26 #include <openssl/bio.h>
27 #include <openssl/err.h>
28 #include <openssl/evp.h>
29 #include <openssl/objects.h>
30 #include <openssl/x509.h>
31 #include <openssl/pem.h>
32 #include <openssl/hmac.h>
37 #include "opkg_download.h"
38 #include "opkg_message.h"
39 #include "opkg_state.h"
41 #include "sprintf_alloc.h"
43 #include "file_util.h"
45 #include "opkg_defines.h"
49 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath);
50 static void init_openssl(void);
53 int opkg_download(opkg_conf_t *conf, const char *src,
54 const char *dest_file_name, curl_progress_func cb, void *data)
58 char *src_basec = strdup(src);
59 char *src_base = basename(src_basec);
60 char *tmp_file_location;
62 opkg_message(conf,OPKG_NOTICE,"Downloading %s\n", src);
64 if (str_starts_with(src, "file:")) {
66 const char *file_src = src + 5;
67 opkg_message(conf,OPKG_INFO,"Copying %s to %s...", file_src, dest_file_name);
68 ret = file_copy(src + 5, dest_file_name);
69 opkg_message(conf,OPKG_INFO,"Done\n");
74 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
75 err = unlink(tmp_file_location);
76 if (err && errno != ENOENT) {
77 opkg_message(conf,OPKG_ERROR, "%s: ERROR: failed to unlink %s: %s\n",
78 __FUNCTION__, tmp_file_location, strerror(errno));
79 free(tmp_file_location);
84 if (conf->http_proxy) {
85 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: http_proxy = %s\n", conf->http_proxy);
86 setenv("http_proxy", conf->http_proxy, 1);
88 if (conf->ftp_proxy) {
89 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: ftp_proxy = %s\n", conf->ftp_proxy);
90 setenv("ftp_proxy", conf->ftp_proxy, 1);
93 opkg_message(conf,OPKG_DEBUG,"Setting environment variable: no_proxy = %s\n", conf->no_proxy);
94 setenv("no_proxy", conf->no_proxy, 1);
100 FILE * file = fopen (tmp_file_location, "w");
102 curl = curl_easy_init ();
105 curl_easy_setopt (curl, CURLOPT_URL, src);
106 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
107 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
110 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
111 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);
113 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
114 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
115 if (conf->http_proxy || conf->ftp_proxy)
118 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
120 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
123 res = curl_easy_perform (curl);
128 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
129 opkg_message(conf, OPKG_ERROR, "Failed to download %s. \nerror detail: %s\n", src, curl_easy_strerror(res));
130 free(tmp_file_location);
132 curl_easy_cleanup (curl);
135 curl_easy_cleanup (curl);
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 = strdup(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)
220 char *stripped_filename;
222 if (pkg->src == NULL) {
223 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
224 pkg->name, pkg->parent->name);
227 if (pkg->filename == NULL) {
228 opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) does not have a valid filename field.\n",pkg->name, pkg->parent->name);
232 sprintf_alloc (&pkgid, "%s;%s;%s;", pkg->name, pkg->version, pkg->architecture);
233 opkg_set_current_state (conf, OPKG_STATE_DOWNLOADING_PKG, pkgid);
236 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
238 /* XXX: BUG: The pkg->filename might be something like
239 "../../foo.opk". While this is correct, and exactly what we
240 want to use to construct url above, here we actually need to
241 use just the filename part, without any directory. */
243 stripped_filename = strrchr(pkg->filename, '/');
244 if ( ! stripped_filename )
245 stripped_filename = pkg->filename;
247 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
249 err = opkg_download_cache(conf, url, pkg->local_filename, NULL, NULL);
252 opkg_set_current_state (conf, OPKG_STATE_NONE, NULL);
257 * Downloads file from url, installs in package database, return package name.
259 int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **namep)
267 if (str_starts_with(url, "http://")
268 || str_starts_with(url, "ftp://")) {
270 char *file_basec = strdup(url);
271 char *file_base = basename(file_basec);
273 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
274 err = opkg_download(conf, url, tmp_file, NULL, NULL);
278 err = pkg_init_from_file(pkg, tmp_file);
281 pkg->local_filename = strdup(tmp_file);
286 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
287 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
288 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
290 err = pkg_init_from_file(pkg, url);
293 pkg->local_filename = strdup(url);
294 opkg_message(conf, OPKG_DEBUG2, "Package %s provided by hand (%s).\n", pkg->name,pkg->local_filename);
295 pkg->provided_by_hand = 1;
303 if (!pkg->architecture) {
304 opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
308 pkg->dest = conf->default_dest;
309 pkg->state_want = SW_INSTALL;
310 pkg->state_flag |= SF_PREFER;
311 pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
313 fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
317 *namep = strdup(pkg->name);
323 opkg_verify_file (opkg_conf_t *conf, char *text_file, char *sig_file)
325 #if defined HAVE_GPGME
326 if (conf->check_signature == 0 )
330 gpgme_data_t sig, text, key;
331 gpgme_error_t err = -1;
332 gpgme_verify_result_t result;
334 char *trusted_path = NULL;
336 err = gpgme_new (&ctx);
341 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
342 err = gpgme_data_new_from_file (&key, trusted_path, 1);
348 err = gpgme_op_import (ctx, key);
351 gpgme_data_release (key);
354 gpgme_data_release (key);
356 err = gpgme_data_new_from_file (&sig, sig_file, 1);
363 err = gpgme_data_new_from_file (&text, text_file, 1);
366 gpgme_data_release (sig);
371 err = gpgme_op_verify (ctx, sig, text, NULL);
373 result = gpgme_op_verify_result (ctx);
377 /* see if any of the signitures matched */
378 s = result->signatures;
381 status = gpg_err_code (s->status);
382 if (status == GPG_ERR_NO_ERROR)
388 gpgme_data_release (sig);
389 gpgme_data_release (text);
393 #elif defined HAVE_OPENSSL
394 X509_STORE *store = NULL;
396 BIO *in = NULL, *indata = NULL;
398 // Sig check failed by default !
403 // Set-up the key store
404 if(!(store = setup_verify(conf, conf->signature_ca_file, conf->signature_ca_path))){
405 opkg_message(conf, OPKG_ERROR,
406 "Can't open CA certificates\n");
407 goto verify_file_end;
410 // Open a BIO to read the sig file
411 if (!(in = BIO_new_file(sig_file, "rb"))){
412 opkg_message(conf, OPKG_ERROR,
413 "Can't open signature file %s\n", sig_file);
414 goto verify_file_end;
417 // Read the PKCS7 block contained in the sig file
418 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
420 opkg_message(conf, OPKG_ERROR,
421 "Can't read signature file (Corrupted ?)\n");
422 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);
455 #if defined HAVE_OPENSSL
456 static X509_STORE *setup_verify(opkg_conf_t *conf, char *CAfile, char *CApath){
457 X509_STORE *store = NULL;
458 X509_LOOKUP *lookup = NULL;
460 if(!(store = X509_STORE_new())){
461 // Something bad is happening...
465 // adds the X509 file lookup method
466 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
471 // Autenticating against one CA file
473 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
474 // Invalid CA => Bye bye
475 opkg_message(conf, OPKG_ERROR,
476 "Error loading file %s\n", CAfile);
480 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
483 // Now look into CApath directory if supplied
484 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
490 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
491 opkg_message(conf, OPKG_ERROR,
492 "Error loading directory %s\n", CApath);
496 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
505 X509_STORE_free(store);
510 static void init_openssl(void){
514 OpenSSL_add_all_algorithms();
515 ERR_load_crypto_strings();