--- /dev/null
+/*
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <openssl/conf.h>
+#include <openssl/ssl.h>
+#include "ssl_locl.h"
+
+/* SSL library configuration module. */
+
+struct ssl_conf_name {
+ /* Name of this set of commands */
+ char *name;
+ /* List of commands */
+ struct ssl_conf_cmd *cmds;
+ /* Number of commands */
+ size_t cmd_count;
+};
+
+struct ssl_conf_cmd {
+ /* Command */
+ char *cmd;
+ /* Argument */
+ char *arg;
+};
+
+static struct ssl_conf_name *ssl_names;
+static size_t ssl_names_count;
+
+static void ssl_module_free(CONF_IMODULE *md)
+{
+ size_t i, j;
+ if (ssl_names == NULL)
+ return;
+ for (i = 0; i < ssl_names_count; i++) {
+ struct ssl_conf_name *tname = ssl_names + i;
+ OPENSSL_free(tname->name);
+ for (j = 0; j < tname->cmd_count; j++) {
+ OPENSSL_free(tname->cmds[j].cmd);
+ OPENSSL_free(tname->cmds[j].arg);
+ }
+ OPENSSL_free(tname->cmds);
+ }
+ OPENSSL_free(ssl_names);
+ ssl_names = NULL;
+ ssl_names_count = 0;
+}
+
+static int ssl_module_init(CONF_IMODULE *md, const CONF *cnf)
+{
+ size_t i, j, cnt;
+ int rv = 0;
+ const char *ssl_conf_section;
+ STACK_OF(CONF_VALUE) *cmd_lists;
+ ssl_conf_section = CONF_imodule_get_value(md);
+ cmd_lists = NCONF_get_section(cnf, ssl_conf_section);
+ if (sk_CONF_VALUE_num(cmd_lists) <= 0) {
+ if (cmd_lists == NULL)
+ SSLerr(SSL_F_SSL_MODULE_INIT, SSL_R_SSL_SECTION_NOT_FOUND);
+ else
+ SSLerr(SSL_F_SSL_MODULE_INIT, SSL_R_SSL_SECTION_EMPTY);
+ ERR_add_error_data(2, "section=", ssl_conf_section);
+ goto err;
+ }
+ cnt = sk_CONF_VALUE_num(cmd_lists);
+ ssl_names = OPENSSL_zalloc(sizeof(*ssl_names) * cnt);
+ ssl_names_count = cnt;
+ for (i = 0; i < ssl_names_count; i++) {
+ struct ssl_conf_name *ssl_name = ssl_names + i;
+ CONF_VALUE *sect = sk_CONF_VALUE_value(cmd_lists, i);
+ STACK_OF(CONF_VALUE) *cmds = NCONF_get_section(cnf, sect->value);
+ if (sk_CONF_VALUE_num(cmds) <= 0) {
+ if (cmds == NULL)
+ SSLerr(SSL_F_SSL_MODULE_INIT,
+ SSL_R_SSL_COMMAND_SECTION_NOT_FOUND);
+ else
+ SSLerr(SSL_F_SSL_MODULE_INIT, SSL_R_SSL_COMMAND_SECTION_EMPTY);
+ ERR_add_error_data(4, "name=", sect->name, ", value=", sect->value);
+ goto err;
+ }
+ ssl_name->name = BUF_strdup(sect->name);
+ if (ssl_name->name == NULL)
+ goto err;
+ cnt = sk_CONF_VALUE_num(cmds);
+ ssl_name->cmds = OPENSSL_zalloc(cnt * sizeof(struct ssl_conf_cmd));
+ if (ssl_name->cmds == NULL)
+ goto err;
+ ssl_name->cmd_count = cnt;
+ for (j = 0; j < cnt; j++) {
+ const char *name;
+ CONF_VALUE *cmd_conf = sk_CONF_VALUE_value(cmds, j);
+ struct ssl_conf_cmd *cmd = ssl_name->cmds + j;
+ /* Skip any initial dot in name */
+ name = strchr(cmd_conf->name, '.');
+ if (name != NULL)
+ name++;
+ else
+ name = cmd_conf->name;
+ cmd->cmd = BUF_strdup(name);
+ cmd->arg = BUF_strdup(cmd_conf->value);
+ if (cmd->cmd == NULL || cmd->arg == NULL)
+ goto err;
+ }
+
+ }
+ rv = 1;
+ err:
+ if (rv == 0)
+ ssl_module_free(md);
+ return rv;
+}
+
+void SSL_add_ssl_module(void)
+{
+ CONF_module_add("ssl_conf", ssl_module_init, ssl_module_free);
+}
+
+static const struct ssl_conf_name *ssl_name_find(const char *name)
+{
+ size_t i;
+ const struct ssl_conf_name *nm;
+ if (name == NULL)
+ return NULL;
+ for (i = 0, nm = ssl_names; i < ssl_names_count; i++, nm++) {
+ if (strcmp(nm->name, name) == 0)
+ return nm;
+ }
+ return NULL;
+}
+
+static int ssl_do_config(SSL *s, SSL_CTX *ctx, const char *name)
+{
+ SSL_CONF_CTX *cctx = NULL;
+ size_t i;
+ int rv = 0;
+ unsigned int flags;
+ const SSL_METHOD *meth;
+ const struct ssl_conf_name *nm;
+ struct ssl_conf_cmd *cmd;
+ if (s == NULL && ctx == NULL) {
+ SSLerr(SSL_F_SSL_DO_CONFIG, ERR_R_PASSED_NULL_PARAMETER);
+ goto err;
+ }
+ nm = ssl_name_find(name);
+ if (nm == NULL) {
+ SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_INVALID_CONFIGURATION_NAME);
+ ERR_add_error_data(2, "name=", name);
+ goto err;
+ }
+ cctx = SSL_CONF_CTX_new();
+ if (cctx == NULL)
+ goto err;
+ flags = SSL_CONF_FLAG_FILE;
+ flags |= SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE;
+ if (s != NULL) {
+ meth = s->method;
+ SSL_CONF_CTX_set_ssl(cctx, s);
+ } else {
+ meth = ctx->method;
+ SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+ }
+ if (meth->ssl_accept != ssl_undefined_function)
+ flags |= SSL_CONF_FLAG_SERVER;
+ if (meth->ssl_connect != ssl_undefined_function)
+ flags |= SSL_CONF_FLAG_CLIENT;
+ SSL_CONF_CTX_set_flags(cctx, flags);
+ for (i = 0, cmd = nm->cmds; i < nm->cmd_count; i++, cmd++) {
+ rv = SSL_CONF_cmd(cctx, cmd->cmd, cmd->arg);
+ if (rv <= 0) {
+ if (rv == -2)
+ SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_UNKNOWN_COMMAND);
+ else
+ SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_BAD_VALUE);
+ ERR_add_error_data(6, "section=", name, ", cmd=", cmd->cmd,
+ ", arg=", cmd->arg);
+ goto err;
+ }
+ }
+ rv = SSL_CONF_CTX_finish(cctx);
+ err:
+ SSL_CONF_CTX_free(cctx);
+ return rv <= 0 ? 0 : 1;
+}
+
+int SSL_config(SSL *s, const char *name)
+{
+ return ssl_do_config(s, NULL, name);
+}
+
+int SSL_CTX_config(SSL_CTX *ctx, const char *name)
+{
+ return ssl_do_config(NULL, ctx, name);
+}
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