if (ret != NULL)
memset(ret, 0, sizeof(*ret));
+ ret->flags = DEFAULT_CONF_MFLAGS;
+
return ret;
}
#ifndef OPENSSL_NO_STDIO
+int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
+ const char *filename)
+{
+ char *newfilename = NULL;
+
+ if (filename != NULL) {
+ newfilename = strdup(filename);
+ if (newfilename == NULL)
+ return 0;
+ }
+
+ free(settings->filename);
+ settings->filename = newfilename;
+
+ return 1;
+}
+
+void OPENSSL_INIT_set_config_file_flags(OPENSSL_INIT_SETTINGS *settings,
+ unsigned long flags)
+{
+ settings->flags = flags;
+}
+
int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
const char *appname)
{
void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings)
{
+ free(settings->filename);
free(settings->appname);
free(settings);
}
OPENSSL_free(file);
NCONF_free(conf);
+ if (flags & CONF_MFLAGS_IGNORE_RETURN_CODES)
+ return 1;
+
return ret;
}
}
#endif
-void openssl_config_int(const char *appname)
+int openssl_config_int(const OPENSSL_INIT_SETTINGS *settings)
{
+ int ret;
+ const char *filename;
+ const char *appname;
+ unsigned long flags;
+
if (openssl_configured)
- return;
+ return 1;
+
+ filename = settings ? settings->filename : NULL;
+ appname = settings ? settings->appname : NULL;
+ flags = settings ? settings->flags : DEFAULT_CONF_MFLAGS;
+
+#ifdef OPENSSL_INIT_DEBUG
+ fprintf(stderr, "OPENSSL_INIT: openssl_config_int(%s, %s, %lu)\n",
+ filename, appname, flags);
+#endif
OPENSSL_load_builtin_modules();
#ifndef OPENSSL_NO_ENGINE
#endif
ERR_clear_error();
#ifndef OPENSSL_SYS_UEFI
- CONF_modules_load_file(NULL, appname,
- CONF_MFLAGS_DEFAULT_SECTION |
- CONF_MFLAGS_IGNORE_MISSING_FILE);
+ ret = CONF_modules_load_file(filename, appname, flags);
#endif
openssl_configured = 1;
+ return ret;
}
void openssl_no_config_int(void)
{
int saveerrno = get_last_sys_error();
+ /*
+ * Note, at present our only caller is OPENSSL_init_crypto(), indirectly
+ * via ossl_init_load_crypto_nodelete(), by which point the requested
+ * "base" initialization has already been performed, so the below call is a
+ * NOOP, that re-enters OPENSSL_init_crypto() only to quickly return.
+ *
+ * If are no other valid callers of this function, the call below can be
+ * removed, avoiding the re-entry into OPENSSL_init_crypto(). If there are
+ * potential uses that are not from inside OPENSSL_init_crypto(), then this
+ * call is needed, but some care is required to make sure that the re-entry
+ * remains a NOOP.
+ */
if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL))
return 0;
static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT;
static int config_inited = 0;
-static const char *appname;
+static const OPENSSL_INIT_SETTINGS *conf_settings = NULL;
DEFINE_RUN_ONCE_STATIC(ossl_init_config)
{
-#ifdef OPENSSL_INIT_DEBUG
- fprintf(stderr,
- "OPENSSL_INIT: ossl_init_config: openssl_config(%s)\n",
- appname == NULL ? "NULL" : appname);
-#endif
- openssl_config_int(appname);
+ int ret = openssl_config_int(conf_settings);
config_inited = 1;
- return 1;
+ return ret;
}
DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config)
{
return 0;
}
+ /*
+ * When the caller specifies OPENSSL_INIT_BASE_ONLY, that should be the
+ * *only* option specified. With that option we return immediately after
+ * doing the requested limited initialization. Note that
+ * err_shelve_state() called by us via ossl_init_load_crypto_nodelete()
+ * re-enters OPENSSL_init_crypto() with OPENSSL_INIT_BASE_ONLY, but with
+ * base already initialized this is a harmless NOOP.
+ *
+ * If we remain the only caller of err_shelve_state() the recursion should
+ * perhaps be removed, but if in doubt, it can be left in place.
+ */
if (!RUN_ONCE(&base, ossl_init_base))
return 0;
+ if (opts & OPENSSL_INIT_BASE_ONLY)
+ return 1;
+ /*
+ * Now we don't always set up exit handlers, the INIT_BASE_ONLY calls
+ * should not have the side-effect of setting up exit handlers, and
+ * therefore, this code block is below the INIT_BASE_ONLY-conditioned early
+ * return above.
+ */
if ((opts & OPENSSL_INIT_NO_ATEXIT) != 0) {
if (!RUN_ONCE_ALT(®ister_atexit, ossl_init_no_register_atexit,
ossl_init_register_atexit))
return 0;
}
- if (!(opts & OPENSSL_INIT_BASE_ONLY)
- && !RUN_ONCE(&load_crypto_nodelete,
- ossl_init_load_crypto_nodelete))
+ if (!RUN_ONCE(&load_crypto_nodelete, ossl_init_load_crypto_nodelete))
return 0;
if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS)
if (opts & OPENSSL_INIT_LOAD_CONFIG) {
int ret;
CRYPTO_THREAD_write_lock(init_lock);
- appname = (settings == NULL) ? NULL : settings->appname;
+ conf_settings = settings;
ret = RUN_ONCE(&config, ossl_init_config);
+ conf_settings = NULL;
CRYPTO_THREAD_unlock(init_lock);
if (!ret)
return 0;
The following B<flags> are currently recognized:
-B<CONF_MFLAGS_IGNORE_ERRORS> if set errors returned by individual
+If B<CONF_MFLAGS_IGNORE_ERRORS> is set errors returned by individual
configuration modules are ignored. If not set the first module error is
considered fatal and no further modules are loaded.
Normally any modules errors will add error information to the error queue. If
B<CONF_MFLAGS_SILENT> is set no error information is added.
+If B<CONF_MFLAGS_IGNORE_RETURN_CODES> is set the function unconditionally
+returns success.
+This is used by default in L<OPENSSL_init_crypto(3)> to ignore any errors in
+the default system-wide configuration file, as having all OpenSSL applications
+fail to start when there are potentially minor issues in the file is too risky.
+Applications calling B<CONF_modules_load_file> explicitly should not generally
+set this flag.
+
If B<CONF_MFLAGS_NO_DSO> is set configuration module loading from DSOs is
disabled.
=head1 NAME
-OPENSSL_INIT_new, OPENSSL_INIT_set_config_appname, OPENSSL_INIT_free,
-OPENSSL_init_crypto, OPENSSL_cleanup,
-OPENSSL_atexit, OPENSSL_thread_stop - OpenSSL
-initialisation and deinitialisation functions
+OPENSSL_INIT_new, OPENSSL_INIT_set_config_filename,
+OPENSSL_INIT_set_config_appname, OPENSSL_INIT_set_config_file_flags,
+OPENSSL_INIT_free, OPENSSL_init_crypto, OPENSSL_cleanup, OPENSSL_atexit,
+OPENSSL_thread_stop - OpenSSL initialisation
+and deinitialisation functions
=head1 SYNOPSIS
void OPENSSL_thread_stop(void);
OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
+ int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *init,
+ const char* filename);
+ int OPENSSL_INIT_set_config_file_flags(OPENSSL_INIT_SETTINGS *init,
+ unsigned long flags);
int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *init,
const char* name);
void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *init);
With this option an OpenSSL configuration file will be automatically loaded and
used by calling OPENSSL_config(). This is not a default option for libcrypto.
-From OpenSSL 1.1.1 this is a default option for libssl (see
+As of OpenSSL 1.1.1 this is a default option for libssl (see
L<OPENSSL_init_ssl(3)> for further details about libssl initialisation). See the
description of OPENSSL_INIT_new(), below.
resources should be freed at an earlier time, or under the circumstances
described in the NOTES section below.
-The B<OPENSSL_INIT_LOAD_CONFIG> flag will load a default configuration
-file. For optional configuration file settings, an B<OPENSSL_INIT_SETTINGS>
-must be created and used.
-The routines OPENSSL_init_new() and OPENSSL_INIT_set_config_appname() can
-be used to allocate the object and set the application name, and then the
-object can be released with OPENSSL_INIT_free() when done.
+The B<OPENSSL_INIT_LOAD_CONFIG> flag will load a configuration file, as with
+L<CONF_modules_load_file(3)> with NULL filename and application name and the
+B<CONF_MFLAGS_IGNORE_MISSING_FILE>, B<CONF_MFLAGS_IGNORE_RETURN_CODES> and
+B<CONF_MFLAGS_DEFAULT_SECTION> flags.
+The filename, application name, and flags can be customized by providing a
+non-null B<OPENSSL_INIT_SETTINGS> object.
+The object can be allocated via B<OPENSSL_init_new()>.
+The B<OPENSSL_INIT_set_config_filename()> function can be used to specify a
+non-default filename, which is copied and need not refer to persistent storage.
+Similarly, OPENSSL_INIT_set_config_appname() can be used to specify a
+non-default application name.
+Finally, OPENSSL_INIT_set_file_flags can be used to specify non-default flags.
+If the B<CONF_MFLAGS_IGNORE_RETURN_CODES> flag is not included, any errors in
+the configuration file will cause an error return from B<OPENSSL_init_crypto>
+or indirectly L<OPENSSL_init_ssl(3)>.
+The object can be released with OPENSSL_INIT_free() when done.
=head1 NOTES
#include <openssl/conf.h>
+#define DEFAULT_CONF_MFLAGS \
+ (CONF_MFLAGS_DEFAULT_SECTION | \
+ CONF_MFLAGS_IGNORE_MISSING_FILE | \
+ CONF_MFLAGS_IGNORE_RETURN_CODES)
+
struct ossl_init_settings_st {
+ char *filename;
char *appname;
+ unsigned long flags;
};
-void openssl_config_int(const char *appname);
+int openssl_config_int(const OPENSSL_INIT_SETTINGS *);
void openssl_no_config_int(void);
void conf_modules_free_int(void);
/* Low-level control of initialization */
OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
# ifndef OPENSSL_NO_STDIO
+int OPENSSL_INIT_set_config_filename(OPENSSL_INIT_SETTINGS *settings,
+ const char *config_filename);
+void OPENSSL_INIT_set_config_file_flags(OPENSSL_INIT_SETTINGS *settings,
+ unsigned long flags);
int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
- const char *config_file);
+ const char *config_appname);
# endif
void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);
return 0;
}
- if (!OPENSSL_init_crypto(opts
+ opts |= OPENSSL_INIT_ADD_ALL_CIPHERS
+ | OPENSSL_INIT_ADD_ALL_DIGESTS;
#ifndef OPENSSL_NO_AUTOLOAD_CONFIG
- | OPENSSL_INIT_LOAD_CONFIG
+ if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) == 0)
+ opts |= OPENSSL_INIT_LOAD_CONFIG;
#endif
- | OPENSSL_INIT_ADD_ALL_CIPHERS
- | OPENSSL_INIT_ADD_ALL_DIGESTS,
- settings))
+
+ if (!OPENSSL_init_crypto(opts, settings))
return 0;
if (!RUN_ONCE(&ssl_base, ossl_init_ssl_base))
EVP_MD_CTX_set_pkey_ctx 4531 1_1_1 EXIST::FUNCTION:
EVP_PKEY_meth_set_digest_custom 4532 1_1_1 EXIST::FUNCTION:
EVP_PKEY_meth_get_digest_custom 4533 1_1_1 EXIST::FUNCTION:
+OPENSSL_INIT_set_config_filename 4534 1_1_1b EXIST::FUNCTION:STDIO
+OPENSSL_INIT_set_config_file_flags 4535 1_1_1b EXIST::FUNCTION:STDIO
projects / oweals / openssl.git / commitdiff