1 files changed, 107 insertions, 0 deletions
diff --git a/crypto/openssl/ssl/ssl_mcnf.c b/crypto/openssl/ssl/ssl_mcnf.c
new file mode 100644
index 000000000000..06a23344b27d
--- /dev/null
+++ b/crypto/openssl/ssl/ssl_mcnf.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2015-2024 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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_local.h"
+#include "internal/sslconf.h"
+
+/* SSL library configuration module. */
+
+void SSL_add_ssl_module(void)
+{
+    /* Do nothing. This will be added automatically by libcrypto */
+}
+
+static int ssl_do_config(SSL *s, SSL_CTX *ctx, const char *name, int system)
+{
+    SSL_CONF_CTX *cctx = NULL;
+    size_t i, idx, cmd_count;
+    int err = 1;
+    unsigned int flags;
+    unsigned int conf_diagnostics = 0;
+    const SSL_METHOD *meth;
+    const SSL_CONF_CMD *cmds;
+    OSSL_LIB_CTX *prev_libctx = NULL;
+    OSSL_LIB_CTX *libctx = NULL;
+
+    if (s == NULL && ctx == NULL) {
+        ERR_raise(ERR_LIB_SSL, ERR_R_PASSED_NULL_PARAMETER);
+        goto err;
+    }
+
+    if (name == NULL && system)
+        name = "system_default";
+    if (!conf_ssl_name_find(name, &idx)) {
+        if (!system)
+            ERR_raise_data(ERR_LIB_SSL, SSL_R_INVALID_CONFIGURATION_NAME,
+                           "name=%s", name);
+        goto err;
+    }
+    cmds = conf_ssl_get(idx, &name, &cmd_count);
+    cctx = SSL_CONF_CTX_new();
+    if (cctx == NULL) {
+        /* this is a fatal error, always report */
+        system = 0;
+        goto err;
+    }
+    flags = SSL_CONF_FLAG_FILE;
+    if (!system)
+        flags |= SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE;
+    if (s != NULL) {
+        meth = s->method;
+        SSL_CONF_CTX_set_ssl(cctx, s);
+        libctx = s->ctx->libctx;
+    } else {
+        meth = ctx->method;
+        SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+        libctx = ctx->libctx;
+    }
+    conf_diagnostics = OSSL_LIB_CTX_get_conf_diagnostics(libctx);
+    if (conf_diagnostics)
+        flags |= SSL_CONF_FLAG_SHOW_ERRORS;
+    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);
+    prev_libctx = OSSL_LIB_CTX_set0_default(libctx);
+    err = 0;
+    for (i = 0; i < cmd_count; i++) {
+        char *cmdstr, *arg;
+        int rv;
+
+        conf_ssl_get_cmd(cmds, i, &cmdstr, &arg);
+        rv = SSL_CONF_cmd(cctx, cmdstr, arg);
+        if (rv <= 0)
+            ++err;
+    }
+    if (!SSL_CONF_CTX_finish(cctx))
+        ++err;
+ err:
+    OSSL_LIB_CTX_set0_default(prev_libctx);
+    SSL_CONF_CTX_free(cctx);
+    return err == 0 || (system && !conf_diagnostics);
+}
+
+int SSL_config(SSL *s, const char *name)
+{
+    return ssl_do_config(s, NULL, name, 0);
+}
+
+int SSL_CTX_config(SSL_CTX *ctx, const char *name)
+{
+    return ssl_do_config(NULL, ctx, name, 0);
+}
+
+int ssl_ctx_system_config(SSL_CTX *ctx)
+{
+    return ssl_do_config(NULL, ctx, NULL, 1);
+}