General Public License for more details.
*/
-#include <sys/wait.h>
#include <stdio.h>
#include <unistd.h>
#include <libgen.h>
#include "opkg_defines.h"
#include "libbb/libbb.h"
-#if defined(HAVE_OPENSSL)
-#include <openssl/conf.h>
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include <openssl/ssl.h>
-#endif
+static int str_starts_with(const char *str, const char *prefix)
+{
+ return (strncmp(str, prefix, strlen(prefix)) == 0);
+}
-#if defined(HAVE_OPENSSL)
-#include <openssl/bio.h>
-#include <openssl/objects.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/hmac.h>
-#endif
+int opkg_verify_integrity(pkg_t *pkg, const char *filename)
+{
+ int err = 0;
+ char *file_md5, *pkg_md5;
+ char *file_sha256, *pkg_sha256;
+ struct stat pkg_stat;
+ long long int pkg_expected_size;
-#if defined(HAVE_OPENSSL)
-static void openssl_init(void);
-#endif
+ /* Check file size */
+ err = lstat(filename, &pkg_stat);
-#ifdef HAVE_OPENSSL
-static X509_STORE *setup_verify(char *CAfile, char *CApath);
-#endif
+ if (err) {
+ opkg_msg(ERROR, "Failed to stat %s: %s\n",
+ filename, strerror(errno));
+ return err;
+ }
-static int str_starts_with(const char *str, const char *prefix)
-{
- return (strncmp(str, prefix, strlen(prefix)) == 0);
+ pkg_expected_size = pkg_get_int(pkg, PKG_SIZE);
+
+ if (pkg_expected_size > 0 && pkg_stat.st_size != pkg_expected_size) {
+ opkg_msg(INFO,
+ "Package size mismatch: %s is %lld bytes, expecting %lld bytes\n",
+ pkg->name, (long long int)pkg_stat.st_size, pkg_expected_size);
+ err = -1;
+ goto out;
+ }
+
+ /* Check for md5 values */
+ pkg_md5 = pkg_get_md5(pkg);
+ if (pkg_md5) {
+ file_md5 = file_md5sum_alloc(filename);
+ if (file_md5 && strcmp(file_md5, pkg_md5)) {
+ opkg_msg(INFO, "Package %s md5sum mismatch.\n",
+ pkg->name);
+ err = -1;
+ free(file_md5);
+ goto out;
+ }
+ if (file_md5)
+ free(file_md5);
+ }
+
+ /* Check for sha256 value */
+ pkg_sha256 = pkg_get_sha256(pkg);
+ if (pkg_sha256) {
+ file_sha256 = file_sha256sum_alloc(filename);
+ if (file_sha256 && strcmp(file_sha256, pkg_sha256)) {
+ opkg_msg(INFO, "Package %s sha256sum mismatch.\n",
+ pkg->name);
+ err = -1;
+ free(file_sha256);
+ goto out;
+ }
+ if (file_sha256)
+ free(file_sha256);
+ }
+
+out:
+ return err;
}
int
opkg_download(const char *src, const char *dest_file_name,
- curl_progress_func cb, void *data, const short hide_error)
+ const short hide_error)
{
int err = 0;
opkg_msg(NOTICE, "Downloading %s\n", src);
if (str_starts_with(src, "file:")) {
- const char *file_src = src + 5;
+ char *file_src = urldecode_path(src + 5);
opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
err = file_copy(file_src, dest_file_name);
opkg_msg(INFO, "Done.\n");
free(src_basec);
+ free(file_src);
return err;
}
conf->http_proxy);
setenv("http_proxy", conf->http_proxy, 1);
}
+ if (conf->https_proxy) {
+ opkg_msg(DEBUG,
+ "Setting environment variable: https_proxy = %s.\n",
+ conf->https_proxy);
+ setenv("https_proxy", conf->https_proxy, 1);
+ }
if (conf->ftp_proxy) {
opkg_msg(DEBUG,
"Setting environment variable: ftp_proxy = %s.\n",
{
int res;
- const char *argv[8];
+ const char *argv[11];
int i = 0;
argv[i++] = "wget";
argv[i++] = "-q";
- if (conf->http_proxy || conf->ftp_proxy) {
+ if (conf->no_check_certificate) {
+ argv[i++] = "--no-check-certificate";
+ }
+ if (conf->http_timeout) {
+ argv[i++] = "--timeout";
+ argv[i++] = conf->http_timeout;
+ }
+ if (conf->http_proxy || conf->https_proxy || conf->ftp_proxy) {
argv[i++] = "-Y";
argv[i++] = "on";
}
return err;
}
+static char* get_cache_filename(const char *dest_file_name)
+{
+ char *cache_name;
+ char *filename = strrchr(dest_file_name, '/');
+ if (filename)
+ cache_name = xstrdup(filename + 1); // strip leading '/'
+ else
+ cache_name = xstrdup(dest_file_name);
+ return cache_name;
+}
+
static int
-opkg_download_cache(const char *src, const char *dest_file_name,
- curl_progress_func cb, void *data)
+opkg_download_cache(const char *src, const char *dest_file_name)
{
- char *cache_name = xstrdup(src);
- char *cache_location, *p;
+ char *cache_name, *cache_location;
int err = 0;
if (!conf->cache || str_starts_with(src, "file:")) {
- err = opkg_download(src, dest_file_name, cb, data, 0);
+ err = opkg_download(src, dest_file_name, 0);
goto out1;
}
goto out1;
}
- for (p = cache_name; *p; p++)
- if (*p == '/')
- *p = ','; /* looks nicer than | or # */
-
+ cache_name = get_cache_filename(dest_file_name);
sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
if (file_exists(cache_location))
opkg_msg(NOTICE, "Copying %s.\n", cache_location);
else {
- /* cache file with funky name not found, try simple name */
- free(cache_name);
- char *filename = strrchr(dest_file_name, '/');
- if (filename)
- cache_name = xstrdup(filename + 1); // strip leading '/'
- else
- cache_name = xstrdup(dest_file_name);
- free(cache_location);
- sprintf_alloc(&cache_location, "%s/%s", conf->cache,
- cache_name);
- if (file_exists(cache_location))
- opkg_msg(NOTICE, "Copying %s.\n", cache_location);
- else {
- err = opkg_download(src, cache_location, cb, data, 0);
- if (err) {
- (void)unlink(cache_location);
- goto out2;
- }
+ err = opkg_download(src, cache_location, 0);
+ if (err) {
+ (void)unlink(cache_location);
+ goto out2;
}
}
out2:
free(cache_location);
-out1:
free(cache_name);
+out1:
return err;
}
char *url;
char *local_filename;
char *stripped_filename;
+ char *urlencoded_path;
char *filename;
+ char *cache_name;
+ char *cache_location;
if (pkg->src == NULL) {
opkg_msg(ERROR,
return -1;
}
- sprintf_alloc(&url, "%s/%s", pkg->src->value, filename);
+ urlencoded_path = urlencode_path(filename);
+ sprintf_alloc(&url, "%s/%s", pkg->src->value, urlencoded_path);
+ free(urlencoded_path);
/* The filename might be something like
"../../foo.opk". While this is correct, and exactly what we
sprintf_alloc(&local_filename, "%s/%s", dir, stripped_filename);
pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
- err = opkg_download_cache(url, local_filename, NULL, NULL);
+ /* Invalidate/remove cached package if it has an incorrect checksum. */
+ if (conf->cache) {
+ cache_name = get_cache_filename(local_filename);
+ sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
+ free(cache_name);
+ if (file_exists(cache_location)) {
+ err = opkg_verify_integrity(pkg, cache_location);
+ if (err) {
+ opkg_msg(NOTICE,
+ "Removing %s from cache because it has incorrect checksum.\n",
+ pkg->name);
+ unlink(cache_location);
+ }
+ }
+ free(cache_location);
+ }
+
+ err = opkg_download_cache(url, local_filename);
free(url);
return err;
char *file_base = basename(file_basec);
sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
- err = opkg_download(url, tmp_file, NULL, NULL, 0);
+ err = opkg_download(url, tmp_file, 0);
if (err)
return err;
int opkg_verify_file(char *text_file, char *sig_file)
{
#if defined HAVE_USIGN
- int status = -1;
- int pid;
+ const char *argv[] = { conf->verify_program, "verify", sig_file,
+ text_file, NULL };
- if (conf->check_signature == 0)
- return 0;
-
- pid = fork();
- if (pid < 0)
- return -1;
-
- if (!pid) {
- execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file,
- text_file, NULL);
- exit(255);
- }
-
- waitpid(pid, &status, 0);
- if (!WIFEXITED(status) || WEXITSTATUS(status))
- return -1;
-
- return 0;
-#elif defined HAVE_OPENSSL
- X509_STORE *store = NULL;
- PKCS7 *p7 = NULL;
- BIO *in = NULL, *indata = NULL;
-
- // Sig check failed by default !
- int status = -1;
-
- openssl_init();
-
- // Set-up the key store
- if (!
- (store =
- setup_verify(conf->signature_ca_file, conf->signature_ca_path))) {
- opkg_msg(ERROR, "Can't open CA certificates.\n");
- goto verify_file_end;
- }
- // Open a BIO to read the sig file
- if (!(in = BIO_new_file(sig_file, "rb"))) {
- opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
- goto verify_file_end;
- }
- // Read the PKCS7 block contained in the sig file
- p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
- if (!p7) {
- opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
- sig_file);
- goto verify_file_end;
- }
-
- // Open the Package file to authenticate
- if (!(indata = BIO_new_file(text_file, "rb"))) {
- opkg_msg(ERROR, "Can't open file %s.\n", text_file);
- goto verify_file_end;
- }
- // Let's verify the autenticity !
- if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1) {
- // Get Off My Lawn!
- opkg_msg(ERROR, "Verification failure.\n");
- } else {
- // Victory !
- status = 0;
- }
-
-verify_file_end:
- BIO_free(in);
- BIO_free(indata);
- PKCS7_free(p7);
- X509_STORE_free(store);
-
- return status;
+ return xsystem(argv) ? -1 : 0;
#else
/* mute `unused variable' warnings. */
(void)sig_file;
return 0;
#endif
}
-
-#if defined(HAVE_OPENSSL)
-static void openssl_init(void)
-{
- static int init = 0;
-
- if (!init) {
- OPENSSL_config(NULL);
- OpenSSL_add_all_algorithms();
- ERR_load_crypto_strings();
- init = 1;
- }
-}
-
-#endif
-
-#if defined HAVE_OPENSSL
-static X509_STORE *setup_verify(char *CAfile, char *CApath)
-{
- X509_STORE *store = NULL;
- X509_LOOKUP *lookup = NULL;
-
- if (!(store = X509_STORE_new())) {
- // Something bad is happening...
- goto end;
- }
- // adds the X509 file lookup method
- lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
- if (lookup == NULL) {
- goto end;
- }
- // Autenticating against one CA file
- if (CAfile) {
- if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM)) {
- // Invalid CA => Bye bye
- opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
- goto end;
- }
- } else {
- X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
- }
-
- // Now look into CApath directory if supplied
- lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
- if (lookup == NULL) {
- goto end;
- }
-
- if (CApath) {
- if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM)) {
- opkg_msg(ERROR, "Error loading directory %s.\n",
- CApath);
- goto end;
- }
- } else {
- X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
- }
-
- // All right !
- ERR_clear_error();
- return store;
-
-end:
-
- X509_STORE_free(store);
- return NULL;
-
-}
-
-#endif
projects / project / opkg-lede.git / blobdiff