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ssl_mcnf.c revision 1.1.1.1 
      1 /*
      2  * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the OpenSSL license (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #include <stdio.h>
     11 #include <openssl/conf.h>
     12 #include <openssl/ssl.h>
     13 #include "ssl_local.h"
     14 #include "internal/sslconf.h"
     15 
     16 /* SSL library configuration module. */
     17 
     18 void SSL_add_ssl_module(void)
     19 {
     20     /* Do nothing. This will be added automatically by libcrypto */
     21 }
     22 
     23 static int ssl_do_config(SSL *s, SSL_CTX *ctx, const char *name, int system)
     24 {
     25     SSL_CONF_CTX *cctx = NULL;
     26     size_t i, idx, cmd_count;
     27     int rv = 0;
     28     unsigned int flags;
     29     const SSL_METHOD *meth;
     30     const SSL_CONF_CMD *cmds;
     31 
     32     if (s == NULL && ctx == NULL) {
     33         SSLerr(SSL_F_SSL_DO_CONFIG, ERR_R_PASSED_NULL_PARAMETER);
     34         goto err;
     35     }
     36 
     37     if (name == NULL && system)
     38         name = "system_default";
     39     if (!conf_ssl_name_find(name, &idx)) {
     40         if (!system) {
     41             SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_INVALID_CONFIGURATION_NAME);
     42             ERR_add_error_data(2, "name=", name);
     43         }
     44         goto err;
     45     }
     46     cmds = conf_ssl_get(idx, &name, &cmd_count);
     47     cctx = SSL_CONF_CTX_new();
     48     if (cctx == NULL)
     49         goto err;
     50     flags = SSL_CONF_FLAG_FILE;
     51     if (!system)
     52         flags |= SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE;
     53     if (s != NULL) {
     54         meth = s->method;
     55         SSL_CONF_CTX_set_ssl(cctx, s);
     56     } else {
     57         meth = ctx->method;
     58         SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
     59     }
     60     if (meth->ssl_accept != ssl_undefined_function)
     61         flags |= SSL_CONF_FLAG_SERVER;
     62     if (meth->ssl_connect != ssl_undefined_function)
     63         flags |= SSL_CONF_FLAG_CLIENT;
     64     SSL_CONF_CTX_set_flags(cctx, flags);
     65     for (i = 0; i < cmd_count; i++) {
     66         char *cmdstr, *arg;
     67 
     68         conf_ssl_get_cmd(cmds, i, &cmdstr, &arg);
     69         rv = SSL_CONF_cmd(cctx, cmdstr, arg);
     70         if (rv <= 0) {
     71             if (rv == -2)
     72                 SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_UNKNOWN_COMMAND);
     73             else
     74                 SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_BAD_VALUE);
     75             ERR_add_error_data(6, "section=", name, ", cmd=", cmdstr,
     76                                ", arg=", arg);
     77             goto err;
     78         }
     79     }
     80     rv = SSL_CONF_CTX_finish(cctx);
     81  err:
     82     SSL_CONF_CTX_free(cctx);
     83     return rv <= 0 ? 0 : 1;
     84 }
     85 
     86 int SSL_config(SSL *s, const char *name)
     87 {
     88     return ssl_do_config(s, NULL, name, 0);
     89 }
     90 
     91 int SSL_CTX_config(SSL_CTX *ctx, const char *name)
     92 {
     93     return ssl_do_config(NULL, ctx, name, 0);
     94 }
     95 
     96 void ssl_ctx_system_config(SSL_CTX *ctx)
     97 {
     98     ssl_do_config(NULL, ctx, NULL, 1);
     99 }
    100