LCOV - code coverage report
Current view: top level - engine - eng_cnf.c (source / functions) Hit Total Coverage
Test: lcov_coverage_final.info Lines: 46 77 59.7 %
Date: 2014-08-02 Functions: 5 6 83.3 %
Branches: 27 72 37.5 %

           Branch data     Line data    Source code
       1                 :            : /* eng_cnf.c */
       2                 :            : /* Written by Stephen Henson (steve@openssl.org) for the OpenSSL
       3                 :            :  * project 2001.
       4                 :            :  */
       5                 :            : /* ====================================================================
       6                 :            :  * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
       7                 :            :  *
       8                 :            :  * Redistribution and use in source and binary forms, with or without
       9                 :            :  * modification, are permitted provided that the following conditions
      10                 :            :  * are met:
      11                 :            :  *
      12                 :            :  * 1. Redistributions of source code must retain the above copyright
      13                 :            :  *    notice, this list of conditions and the following disclaimer. 
      14                 :            :  *
      15                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      16                 :            :  *    notice, this list of conditions and the following disclaimer in
      17                 :            :  *    the documentation and/or other materials provided with the
      18                 :            :  *    distribution.
      19                 :            :  *
      20                 :            :  * 3. All advertising materials mentioning features or use of this
      21                 :            :  *    software must display the following acknowledgment:
      22                 :            :  *    "This product includes software developed by the OpenSSL Project
      23                 :            :  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
      24                 :            :  *
      25                 :            :  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
      26                 :            :  *    endorse or promote products derived from this software without
      27                 :            :  *    prior written permission. For written permission, please contact
      28                 :            :  *    licensing@OpenSSL.org.
      29                 :            :  *
      30                 :            :  * 5. Products derived from this software may not be called "OpenSSL"
      31                 :            :  *    nor may "OpenSSL" appear in their names without prior written
      32                 :            :  *    permission of the OpenSSL Project.
      33                 :            :  *
      34                 :            :  * 6. Redistributions of any form whatsoever must retain the following
      35                 :            :  *    acknowledgment:
      36                 :            :  *    "This product includes software developed by the OpenSSL Project
      37                 :            :  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
      38                 :            :  *
      39                 :            :  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
      40                 :            :  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      41                 :            :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      42                 :            :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
      43                 :            :  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      44                 :            :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      45                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      46                 :            :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      47                 :            :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      48                 :            :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      49                 :            :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      50                 :            :  * OF THE POSSIBILITY OF SUCH DAMAGE.
      51                 :            :  * ====================================================================
      52                 :            :  *
      53                 :            :  * This product includes cryptographic software written by Eric Young
      54                 :            :  * (eay@cryptsoft.com).  This product includes software written by Tim
      55                 :            :  * Hudson (tjh@cryptsoft.com).
      56                 :            :  *
      57                 :            :  */
      58                 :            : 
      59                 :            : #include "eng_int.h"
      60                 :            : #include <openssl/conf.h>
      61                 :            : 
      62                 :            : /* #define ENGINE_CONF_DEBUG */
      63                 :            : 
      64                 :            : /* ENGINE config module */
      65                 :            : 
      66                 :          2 : static char *skip_dot(char *name)
      67                 :            :         {
      68                 :            :         char *p;
      69                 :          2 :         p = strchr(name, '.');
      70         [ -  + ]:          2 :         if (p)
      71                 :          0 :                 return p + 1;
      72                 :            :         return name;
      73                 :            :         }
      74                 :            : 
      75                 :            : static STACK_OF(ENGINE) *initialized_engines = NULL;
      76                 :            : 
      77                 :          1 : static int int_engine_init(ENGINE *e)
      78                 :            :         {
      79         [ +  - ]:          1 :         if (!ENGINE_init(e))
      80                 :            :                 return 0;
      81         [ +  - ]:          1 :         if (!initialized_engines)
      82                 :          1 :                 initialized_engines = sk_ENGINE_new_null();
      83 [ +  - ][ -  + ]:          1 :         if (!initialized_engines || !sk_ENGINE_push(initialized_engines, e))
      84                 :            :                 {
      85                 :          0 :                 ENGINE_finish(e);
      86                 :          0 :                 return 0;
      87                 :            :                 }
      88                 :            :         return 1;
      89                 :            :         }
      90                 :            :         
      91                 :            : 
      92                 :          1 : static int int_engine_configure(char *name, char *value, const CONF *cnf)
      93                 :            :         {
      94                 :            :         int i;
      95                 :          1 :         int ret = 0;
      96                 :          1 :         long do_init = -1;
      97                 :            :         STACK_OF(CONF_VALUE) *ecmds;
      98                 :          1 :         CONF_VALUE *ecmd = NULL;
      99                 :            :         char *ctrlname, *ctrlvalue;
     100                 :          1 :         ENGINE *e = NULL;
     101                 :          1 :         int soft = 0;
     102                 :            : 
     103                 :          1 :         name = skip_dot(name);
     104                 :            : #ifdef ENGINE_CONF_DEBUG
     105                 :            :         fprintf(stderr, "Configuring engine %s\n", name);
     106                 :            : #endif
     107                 :            :         /* Value is a section containing ENGINE commands */
     108                 :          1 :         ecmds = NCONF_get_section(cnf, value);
     109                 :            : 
     110         [ +  - ]:          1 :         if (!ecmds)
     111                 :            :                 {
     112                 :          0 :                 ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE, ENGINE_R_ENGINE_SECTION_ERROR);
     113                 :          0 :                 return 0;
     114                 :            :                 }
     115                 :            : 
     116         [ +  + ]:          2 :         for (i = 0; i < sk_CONF_VALUE_num(ecmds); i++)
     117                 :            :                 {
     118                 :          1 :                 ecmd = sk_CONF_VALUE_value(ecmds, i);
     119                 :          1 :                 ctrlname = skip_dot(ecmd->name);
     120                 :          1 :                 ctrlvalue = ecmd->value;
     121                 :            : #ifdef ENGINE_CONF_DEBUG
     122                 :            :         fprintf(stderr, "ENGINE conf: doing ctrl(%s,%s)\n", ctrlname, ctrlvalue);
     123                 :            : #endif
     124                 :            : 
     125                 :            :                 /* First handle some special pseudo ctrls */
     126                 :            : 
     127                 :            :                 /* Override engine name to use */
     128         [ +  - ]:          1 :                 if (!strcmp(ctrlname, "engine_id"))
     129                 :            :                         name = ctrlvalue;
     130         [ +  - ]:          1 :                 else if (!strcmp(ctrlname, "soft_load"))
     131                 :            :                         soft = 1;
     132                 :            :                 /* Load a dynamic ENGINE */
     133         [ -  + ]:          1 :                 else if (!strcmp(ctrlname, "dynamic_path"))
     134                 :            :                         {
     135                 :          0 :                         e = ENGINE_by_id("dynamic");
     136         [ #  # ]:          0 :                         if (!e)
     137                 :            :                                 goto err;
     138         [ #  # ]:          0 :                         if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", ctrlvalue, 0))
     139                 :            :                                 goto err;
     140         [ #  # ]:          0 :                         if (!ENGINE_ctrl_cmd_string(e, "LIST_ADD", "2", 0))
     141                 :            :                                 goto err;
     142         [ #  # ]:          0 :                         if (!ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0))
     143                 :            :                                 goto err;
     144                 :            :                         }
     145                 :            :                 /* ... add other pseudos here ... */
     146                 :            :                 else
     147                 :            :                         {
     148                 :            :                         /* At this point we need an ENGINE structural reference
     149                 :            :                          * if we don't already have one.
     150                 :            :                          */
     151         [ +  - ]:          1 :                         if (!e)
     152                 :            :                                 {
     153                 :          1 :                                 e = ENGINE_by_id(name);
     154         [ -  + ]:          1 :                                 if (!e && soft)
     155                 :            :                                         {
     156                 :          0 :                                         ERR_clear_error();
     157                 :          0 :                                         return 1;
     158                 :            :                                         }
     159         [ +  - ]:          1 :                                 if (!e)
     160                 :            :                                         goto err;
     161                 :            :                                 }
     162                 :            :                         /* Allow "EMPTY" to mean no value: this allows a valid
     163                 :            :                          * "value" to be passed to ctrls of type NO_INPUT
     164                 :            :                          */
     165         [ -  + ]:          1 :                         if (!strcmp(ctrlvalue, "EMPTY"))
     166                 :          0 :                                 ctrlvalue = NULL;
     167         [ -  + ]:          1 :                         if (!strcmp(ctrlname, "init"))
     168                 :            :                                 {
     169         [ #  # ]:          0 :                                 if (!NCONF_get_number_e(cnf, value, "init", &do_init))
     170                 :            :                                         goto err;
     171         [ #  # ]:          0 :                                 if (do_init == 1)
     172                 :            :                                         {
     173         [ #  # ]:          0 :                                         if (!int_engine_init(e))
     174                 :            :                                                 goto err;
     175                 :            :                                         }
     176         [ #  # ]:          0 :                                 else if (do_init != 0)
     177                 :            :                                         {
     178                 :          0 :                                         ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE, ENGINE_R_INVALID_INIT_VALUE);
     179                 :          0 :                                         goto err;
     180                 :            :                                         }
     181                 :            :                                 }
     182         [ +  - ]:          1 :                         else if (!strcmp(ctrlname, "default_algorithms"))
     183                 :            :                                 {
     184         [ +  - ]:          1 :                                 if (!ENGINE_set_default_string(e, ctrlvalue))
     185                 :            :                                         goto err;
     186                 :            :                                 }
     187         [ #  # ]:          0 :                         else if (!ENGINE_ctrl_cmd_string(e,
     188                 :            :                                         ctrlname, ctrlvalue, 0))
     189                 :            :                                 goto err;
     190                 :            :                         }
     191                 :            : 
     192                 :            : 
     193                 :            : 
     194                 :            :                 }
     195 [ +  - ][ +  - ]:          1 :         if (e && (do_init == -1) && !int_engine_init(e))
                 [ +  - ]
     196                 :            :                 {
     197                 :            :                 ecmd = NULL;
     198                 :            :                 goto err;
     199                 :            :                 }
     200                 :            :         ret = 1;
     201                 :            :         err:
     202         [ -  + ]:          1 :         if (ret != 1)
     203                 :            :                 {
     204                 :          0 :                 ENGINEerr(ENGINE_F_INT_ENGINE_CONFIGURE, ENGINE_R_ENGINE_CONFIGURATION_ERROR);
     205         [ #  # ]:          0 :                 if (ecmd)
     206                 :          0 :                         ERR_add_error_data(6, "section=", ecmd->section, 
     207                 :            :                                                 ", name=", ecmd->name,
     208                 :            :                                                 ", value=", ecmd->value);
     209                 :            :                 }
     210         [ +  - ]:          1 :         if (e)
     211                 :          1 :                 ENGINE_free(e);
     212                 :          1 :         return ret;
     213                 :            :         }
     214                 :            : 
     215                 :            : 
     216                 :          1 : static int int_engine_module_init(CONF_IMODULE *md, const CONF *cnf)
     217                 :            :         {
     218                 :            :         STACK_OF(CONF_VALUE) *elist;
     219                 :            :         CONF_VALUE *cval;
     220                 :            :         int i;
     221                 :            : #ifdef ENGINE_CONF_DEBUG
     222                 :            :         fprintf(stderr, "Called engine module: name %s, value %s\n",
     223                 :            :                         CONF_imodule_get_name(md), CONF_imodule_get_value(md));
     224                 :            : #endif
     225                 :            :         /* Value is a section containing ENGINEs to configure */
     226                 :          1 :         elist = NCONF_get_section(cnf, CONF_imodule_get_value(md));
     227                 :            : 
     228         [ +  - ]:          1 :         if (!elist)
     229                 :            :                 {
     230                 :          0 :                 ENGINEerr(ENGINE_F_INT_ENGINE_MODULE_INIT, ENGINE_R_ENGINES_SECTION_ERROR);
     231                 :          0 :                 return 0;
     232                 :            :                 }
     233                 :            : 
     234         [ +  + ]:          2 :         for (i = 0; i < sk_CONF_VALUE_num(elist); i++)
     235                 :            :                 {
     236                 :          1 :                 cval = sk_CONF_VALUE_value(elist, i);
     237         [ +  - ]:          1 :                 if (!int_engine_configure(cval->name, cval->value, cnf))
     238                 :            :                         return 0;
     239                 :            :                 }
     240                 :            : 
     241                 :            :         return 1;
     242                 :            :         }
     243                 :            : 
     244                 :          0 : static void int_engine_module_finish(CONF_IMODULE *md)
     245                 :            :         {
     246                 :            :         ENGINE *e;
     247         [ #  # ]:          0 :         while ((e = sk_ENGINE_pop(initialized_engines)))
     248                 :          0 :                 ENGINE_finish(e);
     249                 :          0 :         sk_ENGINE_free(initialized_engines);
     250                 :          0 :         initialized_engines = NULL;
     251                 :          0 :         }
     252                 :            :         
     253                 :            : 
     254                 :        663 : void ENGINE_add_conf_module(void)
     255                 :            :         {
     256                 :        663 :         CONF_module_add("engines",
     257                 :            :                         int_engine_module_init,
     258                 :            :                         int_engine_module_finish);
     259                 :        663 :         }

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