LCOV - code coverage report
Current view: top level - shishi/lib - init.c (source / functions) Hit Total Coverage
Test: GNU Shishi Lines: 45 161 28.0 %
Date: 2010-05-20 Functions: 3 10 30.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 9 104 8.7 %

           Branch data     Line data    Source code
       1                 :            : /* init.c --- Initialization functions.
       2                 :            :  * Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010  Simon Josefsson
       3                 :            :  *
       4                 :            :  * This file is part of Shishi.
       5                 :            :  *
       6                 :            :  * Shishi is free software; you can redistribute it and/or modify it
       7                 :            :  * under the terms of the GNU General Public License as published by
       8                 :            :  * the Free Software Foundation; either version 3 of the License, or
       9                 :            :  * (at your option) any later version.
      10                 :            :  *
      11                 :            :  * Shishi is distributed in the hope that it will be useful, but
      12                 :            :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14                 :            :  * GNU General Public License for more details.
      15                 :            :  *
      16                 :            :  * You should have received a copy of the GNU General Public License
      17                 :            :  * along with Shishi; if not, see http://www.gnu.org/licenses or write
      18                 :            :  * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
      19                 :            :  * Floor, Boston, MA 02110-1301, USA
      20                 :            :  *
      21                 :            :  */
      22                 :            : 
      23                 :            : #include "internal.h"
      24                 :            : 
      25                 :            : /* Get gl_sockets_startup. */
      26                 :            : #include "sockets.h"
      27                 :            : 
      28                 :            : /* Get _shishi_tls_init. */
      29                 :            : #include "starttls.h"
      30                 :            : 
      31                 :            : /* Get _shishi_crypto_init. */
      32                 :            : #include "low-crypto.h"
      33                 :            : 
      34                 :            : /* Get _shishi_asn1_init. */
      35                 :            : #include "asn1.h"
      36                 :            : 
      37                 :            : static Shishi *
      38                 :         14 : init_handle (int outputtype)
      39                 :            : {
      40                 :            :   Shishi *handle;
      41                 :            :   int rc;
      42                 :            : 
      43                 :         14 :   handle = xcalloc (1, sizeof (*handle));
      44                 :            : 
      45                 :         14 :   shishi_error_set_outputtype (handle, outputtype);
      46                 :            : 
      47         [ -  + ]:         14 :   if (!shishi_check_version (SHISHI_VERSION))
      48                 :            :     {
      49                 :          0 :       shishi_warn (handle, "Library and header version missmatch (%s vs %s).",
      50                 :            :                    shishi_check_version (NULL), SHISHI_VERSION);
      51                 :          0 :       free (handle);
      52                 :          0 :       return NULL;
      53                 :            :     }
      54                 :            : 
      55                 :         14 :   rc = gl_sockets_startup (SOCKETS_2_1);
      56         [ -  + ]:         14 :   if (rc)
      57                 :            :     {
      58                 :          0 :       shishi_warn (handle, "Failed to initialized Windows sockets (%d)", rc);
      59                 :          0 :       free (handle);
      60                 :          0 :       return NULL;
      61                 :            :     }
      62                 :            : 
      63                 :         14 :   rc = _shishi_crypto_init (handle);
      64         [ -  + ]:         14 :   if (rc != SHISHI_OK)
      65                 :            :     {
      66                 :          0 :       shishi_warn (handle, "Cannot initialize crypto library");
      67                 :          0 :       free (handle);
      68                 :          0 :       return NULL;
      69                 :            :     }
      70                 :            : 
      71                 :            : #ifdef USE_STARTTLS
      72                 :         14 :   rc = _shishi_tls_init (handle);
      73         [ -  + ]:         14 :   if (rc != SHISHI_OK)
      74                 :            :     {
      75                 :          0 :       shishi_warn (handle, "Cannot initialize TLS library");
      76                 :          0 :       free (handle);
      77                 :          0 :       return NULL;
      78                 :            :     }
      79                 :            : #endif
      80                 :            : 
      81                 :         14 :   rc = _shishi_asn1_init (handle);
      82         [ -  + ]:         14 :   if (rc != SHISHI_OK)
      83                 :            :     {
      84                 :          0 :       shishi_warn (handle, "%s", shishi_strerror (SHISHI_ASN1_ERROR));
      85                 :          0 :       free (handle);
      86                 :          0 :       return NULL;
      87                 :            :     }
      88                 :            : 
      89                 :         14 :   bindtextdomain (PACKAGE, LOCALEDIR);
      90                 :         14 :   textdomain (PACKAGE);
      91                 :            : 
      92                 :         14 :   handle->kdctimeout = 5;
      93                 :         14 :   handle->kdcretries = 3;
      94                 :            : 
      95                 :         14 :   handle->ticketlife = TICKETLIFE;
      96                 :         14 :   handle->renewlife = RENEWLIFE;
      97                 :            : 
      98                 :         14 :   handle->nclientkdcetypes = 1;
      99                 :         14 :   handle->clientkdcetypes = xmalloc (sizeof (*handle->clientkdcetypes) *
     100                 :            :                                      handle->nclientkdcetypes);
     101                 :         14 :   handle->clientkdcetypes[0] = SHISHI_AES256_CTS_HMAC_SHA1_96;
     102                 :            : 
     103                 :         14 :   handle->nauthorizationtypes = 1;
     104                 :         14 :   handle->authorizationtypes = xmalloc (sizeof (*handle->authorizationtypes) *
     105                 :            :                                         handle->nauthorizationtypes);
     106                 :         14 :   handle->authorizationtypes[0] = SHISHI_AUTHORIZATION_BASIC;
     107                 :            : 
     108                 :         14 :   return handle;
     109                 :            : }
     110                 :            : 
     111                 :            : /**
     112                 :            :  * shishi:
     113                 :            :  *
     114                 :            :  * Initializes the Shishi library, and set up, using
     115                 :            :  * shishi_error_set_outputtype(), the library so that future warnings
     116                 :            :  * and informational messages are printed to stderr.  If this function
     117                 :            :  * fails, it may print diagnostic errors to stderr.
     118                 :            :  *
     119                 :            :  * Return value: Returns Shishi library handle, or %NULL on error.
     120                 :            :  **/
     121                 :            : Shishi *
     122                 :         14 : shishi (void)
     123                 :            : {
     124                 :         14 :   return init_handle (SHISHI_OUTPUTTYPE_STDERR);
     125                 :            : }
     126                 :            : 
     127                 :            : /**
     128                 :            :  * shishi_server:
     129                 :            :  *
     130                 :            :  * Initializes the Shishi library, and set up, using
     131                 :            :  * shishi_error_set_outputtype(), the library so that future warnings
     132                 :            :  * and informational messages are printed to the syslog.  If this
     133                 :            :  * function fails, it may print diagnostic errors to the syslog.
     134                 :            :  *
     135                 :            :  * Return value: Returns Shishi library handle, or %NULL on error.
     136                 :            :  **/
     137                 :            : Shishi *
     138                 :          0 : shishi_server (void)
     139                 :            : {
     140                 :          0 :   return init_handle (SHISHI_OUTPUTTYPE_SYSLOG);
     141                 :            : }
     142                 :            : 
     143                 :            : /**
     144                 :            :  * shishi_done:
     145                 :            :  * @handle: shishi handle as allocated by shishi_init().
     146                 :            :  *
     147                 :            :  * Deallocates the shishi library handle.  The handle must not be used
     148                 :            :  * in any calls to shishi functions after this.
     149                 :            :  *
     150                 :            :  * If there is a default tkts, it is written to the default tkts file
     151                 :            :  * (call shishi_tkts_default_file_set() to change the default tkts
     152                 :            :  * file). If you do not wish to write the default tkts file, close the
     153                 :            :  * default tkts with shishi_tkts_done(handle, NULL) before calling
     154                 :            :  * this function.
     155                 :            :  **/
     156                 :            : void
     157                 :         14 : shishi_done (Shishi * handle)
     158                 :            : {
     159                 :            :   int rc;
     160                 :            : 
     161         [ -  + ]:         14 :   if (handle->tkts)
     162                 :            :     {
     163                 :          0 :       shishi_tkts_to_file (handle->tkts, shishi_tkts_default_file (handle));
     164                 :          0 :       shishi_tkts_done (&handle->tkts);
     165                 :            :     }
     166                 :            : 
     167                 :         14 :   shishi_principal_default_set (handle, NULL);
     168                 :         14 :   shishi_tkts_default_file_set (handle, NULL);
     169                 :            : 
     170                 :            : #ifdef USE_STARTTLS
     171                 :         14 :   rc = _shishi_tls_done (handle);
     172         [ -  + ]:         14 :   if (rc != SHISHI_OK)
     173                 :          0 :     shishi_warn (handle, "Cannot deinitialize TLS library");
     174                 :            : #endif
     175                 :            : 
     176         [ -  + ]:         14 :   if (handle->realminfos)
     177                 :            :     {
     178                 :            :       size_t i;
     179                 :            : 
     180         [ #  # ]:          0 :       for (i = 0; i < handle->nrealminfos; i++)
     181                 :            :         {
     182                 :            :           /* XXX free each address */
     183                 :            : 
     184                 :          0 :           free (handle->realminfos[i].kdcaddresses);
     185                 :          0 :           free (handle->realminfos[i].name);
     186                 :            :         }
     187                 :            :     }
     188                 :            : 
     189                 :         14 :   free (handle->default_realm);
     190                 :         14 :   free (handle->usercfgfile);
     191                 :         14 :   free (handle->hostkeysdefaultfile);
     192                 :         14 :   free (handle->clientkdcetypes);
     193                 :         14 :   free (handle->authorizationtypes);
     194                 :         14 :   free (handle->stringprocess);
     195                 :         14 :   free (handle->userdirectory);
     196                 :            : 
     197         [ +  - ]:         14 :   if (handle->asn1)
     198                 :         14 :     shishi_asn1_done (handle, handle->asn1);
     199                 :            : 
     200                 :         14 :   free (handle);
     201                 :         14 : }
     202                 :            : 
     203                 :            : static void
     204                 :          0 : maybe_install_usercfg (Shishi * handle)
     205                 :            : {
     206                 :          0 :   const char *usercfg = shishi_cfg_default_userfile (handle);
     207                 :          0 :   const char *userdir = shishi_cfg_default_userdirectory (handle);
     208                 :            :   struct stat buf;
     209                 :            :   FILE *fh;
     210                 :            :   FILE *src, *dst;
     211                 :            :   int rc;
     212                 :            :   int c;
     213                 :            : 
     214                 :            :   /* Don't create anything if non-standard home is used. */
     215         [ #  # ]:          0 :   if (getenv ("SHISHI_HOME"))
     216                 :          0 :     return;
     217                 :            : 
     218                 :          0 :   fh = fopen (usercfg, "r");
     219         [ #  # ]:          0 :   if (fh)
     220                 :            :     {
     221                 :          0 :       fclose (fh);
     222                 :          0 :       return;
     223                 :            :     }
     224                 :            : 
     225                 :          0 :   rc = stat (userdir, &buf);
     226   [ #  #  #  # ]:          0 :   if (rc == -1 && errno == ENOENT)
     227                 :            :     {
     228                 :          0 :       rc = mkdir (userdir, S_IRUSR | S_IWUSR | S_IXUSR);
     229         [ #  # ]:          0 :       if (rc != 0)
     230                 :          0 :         shishi_warn (handle, "`%s': %s", userdir, strerror (errno));
     231                 :            :     }
     232         [ #  # ]:          0 :   else if (rc != 0)
     233                 :          0 :     shishi_warn (handle, "`%s': %s", userdir, strerror (errno));
     234                 :            : 
     235                 :          0 :   src = fopen (SKELCFGFILE, "r");
     236         [ #  # ]:          0 :   if (!src)
     237                 :            :     {
     238                 :          0 :       shishi_warn (handle, "`%s': %s", SKELCFGFILE, strerror (errno));
     239                 :          0 :       return;
     240                 :            :     }
     241                 :            : 
     242                 :          0 :   dst = fopen (usercfg, "w");
     243         [ #  # ]:          0 :   if (!dst)
     244                 :            :     {
     245                 :          0 :       fclose (src);
     246                 :          0 :       shishi_warn (handle, "`%s': %s", usercfg, strerror (errno));
     247                 :          0 :       return;
     248                 :            :     }
     249                 :            : 
     250         [ #  # ]:          0 :   while ((c = getc (src)) != EOF)
     251                 :          0 :     putc (c, dst);
     252                 :            : 
     253                 :          0 :   fclose (dst);
     254                 :          0 :   fclose (src);
     255                 :            : 
     256                 :          0 :   shishi_info (handle, "created `%s'", usercfg);
     257                 :            : }
     258                 :            : 
     259                 :            : static int
     260                 :          0 : init_read (Shishi * handle,
     261                 :            :            const char *tktsfile,
     262                 :            :            const char *systemcfgfile, const char *usercfgfile)
     263                 :            : {
     264                 :          0 :   int rc = SHISHI_OK;
     265                 :            : 
     266                 :            :   /* XXX Is this the correct place for this? */
     267                 :          0 :   maybe_install_usercfg (handle);
     268                 :            : 
     269         [ #  # ]:          0 :   if (!systemcfgfile)
     270                 :          0 :     systemcfgfile = shishi_cfg_default_systemfile (handle);
     271                 :            : 
     272         [ #  # ]:          0 :   if (*systemcfgfile)
     273                 :          0 :     rc = shishi_cfg_from_file (handle, systemcfgfile);
     274         [ #  # ]:          0 :   if (rc == SHISHI_FOPEN_ERROR)
     275                 :          0 :     shishi_warn (handle, "%s: %s", systemcfgfile, strerror (errno));
     276 [ #  # ][ #  # ]:          0 :   if (rc != SHISHI_OK && rc != SHISHI_FOPEN_ERROR)
     277                 :          0 :     return rc;
     278                 :            : 
     279         [ #  # ]:          0 :   if (!usercfgfile)
     280                 :          0 :     usercfgfile = shishi_cfg_default_userfile (handle);
     281                 :            : 
     282         [ #  # ]:          0 :   if (*usercfgfile)
     283                 :          0 :     rc = shishi_cfg_from_file (handle, usercfgfile);
     284         [ #  # ]:          0 :   if (rc == SHISHI_FOPEN_ERROR)
     285                 :          0 :     shishi_warn (handle, "%s: %s", usercfgfile, strerror (errno));
     286 [ #  # ][ #  # ]:          0 :   if (rc != SHISHI_OK && rc != SHISHI_FOPEN_ERROR)
     287                 :          0 :     return rc;
     288                 :            : 
     289         [ #  # ]:          0 :   if (!tktsfile)
     290                 :          0 :     tktsfile = shishi_tkts_default_file (handle);
     291                 :            : 
     292         [ #  # ]:          0 :   if (!handle->tkts)
     293                 :          0 :     rc = shishi_tkts (handle, &handle->tkts);
     294         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     295                 :          0 :     return rc;
     296                 :            : 
     297         [ #  # ]:          0 :   if (*tktsfile)
     298                 :          0 :     rc = shishi_tkts_from_file (handle->tkts, tktsfile);
     299         [ #  # ]:          0 :   if (rc == SHISHI_FOPEN_ERROR)
     300                 :          0 :     shishi_verbose (handle, "%s: %s", tktsfile, strerror (errno));
     301 [ #  # ][ #  # ]:          0 :   if (rc != SHISHI_OK && rc != SHISHI_FOPEN_ERROR)
     302                 :          0 :     return rc;
     303                 :            : 
     304         [ #  # ]:          0 :   if (VERBOSENOISE (handle))
     305                 :          0 :     shishi_cfg_print (handle, stderr);
     306                 :            : 
     307                 :          0 :   return SHISHI_OK;
     308                 :            : }
     309                 :            : 
     310                 :            : /**
     311                 :            :  * shishi_init:
     312                 :            :  * @handle: pointer to handle to be created.
     313                 :            :  *
     314                 :            :  * Create a Shishi library handle, using shishi(), and read the system
     315                 :            :  * configuration file, user configuration file and user tickets from
     316                 :            :  * their default locations.  The paths to the system configuration
     317                 :            :  * file is decided at compile time, and is $sysconfdir/shishi.conf.
     318                 :            :  * The user configuration file is $HOME/.shishi/config, and the user
     319                 :            :  * ticket file is $HOME/.shishi/ticket.
     320                 :            :  *
     321                 :            :  * The handle is allocated regardless of return values, except for
     322                 :            :  * SHISHI_HANDLE_ERROR which indicates a problem allocating the
     323                 :            :  * handle.  (The other error conditions comes from reading the files.)
     324                 :            :  *
     325                 :            :  * Return value: Returns SHISHI_OK iff successful.
     326                 :            :  **/
     327                 :            : int
     328                 :          0 : shishi_init (Shishi ** handle)
     329                 :            : {
     330 [ #  # ][ #  # ]:          0 :   if (!handle || !(*handle = shishi ()))
     331                 :          0 :     return SHISHI_HANDLE_ERROR;
     332                 :            : 
     333                 :          0 :   return init_read (*handle, shishi_tkts_default_file (*handle),
     334                 :            :                     shishi_cfg_default_systemfile (*handle),
     335                 :            :                     shishi_cfg_default_userfile (*handle));
     336                 :            : }
     337                 :            : 
     338                 :            : /**
     339                 :            :  * shishi_init_with_paths:
     340                 :            :  * @handle: pointer to handle to be created.
     341                 :            :  * @tktsfile: Filename of ticket file, or NULL.
     342                 :            :  * @systemcfgfile: Filename of system configuration, or NULL.
     343                 :            :  * @usercfgfile: Filename of user configuration, or NULL.
     344                 :            :  *
     345                 :            :  * Create a Shishi library handle, using shishi(), and read the system
     346                 :            :  * configuration file, user configuration file, and user tickets from
     347                 :            :  * the specified locations.  If any of @usercfgfile or @systemcfgfile
     348                 :            :  * is NULL, the file is read from its default location, which for the
     349                 :            :  * system configuration file is decided at compile time, and is
     350                 :            :  * $sysconfdir/shishi.conf, and for the user configuration file is
     351                 :            :  * $HOME/.shishi/config.  If the ticket file is NULL, a ticket file is
     352                 :            :  * not read at all.
     353                 :            :  *
     354                 :            :  * The handle is allocated regardless of return values, except for
     355                 :            :  * SHISHI_HANDLE_ERROR which indicates a problem allocating the
     356                 :            :  * handle.  (The other error conditions comes from reading the files.)
     357                 :            :  *
     358                 :            :  * Return value: Returns SHISHI_OK iff successful.
     359                 :            :  **/
     360                 :            : int
     361                 :          0 : shishi_init_with_paths (Shishi ** handle,
     362                 :            :                         const char *tktsfile,
     363                 :            :                         const char *systemcfgfile, const char *usercfgfile)
     364                 :            : {
     365 [ #  # ][ #  # ]:          0 :   if (!handle || !(*handle = shishi ()))
     366                 :          0 :     return SHISHI_HANDLE_ERROR;
     367                 :            : 
     368                 :          0 :   shishi_tkts_default_file_set (*handle, tktsfile);
     369                 :            : 
     370                 :          0 :   return init_read (*handle, tktsfile, systemcfgfile, usercfgfile);
     371                 :            : }
     372                 :            : 
     373                 :            : /**
     374                 :            :  * shishi_init_server:
     375                 :            :  * @handle: pointer to handle to be created.
     376                 :            :  *
     377                 :            :  * Create a Shishi library handle, using shishi_server(), and read the
     378                 :            :  * system configuration file.  The paths to the system configuration
     379                 :            :  * file is decided at compile time, and is $sysconfdir/shishi.conf.
     380                 :            :  *
     381                 :            :  * The handle is allocated regardless of return values, except for
     382                 :            :  * SHISHI_HANDLE_ERROR which indicates a problem allocating the
     383                 :            :  * handle.  (The other error conditions comes from reading the file.)
     384                 :            :  *
     385                 :            :  * Return value: Returns SHISHI_OK iff successful.
     386                 :            :  **/
     387                 :            : int
     388                 :          0 : shishi_init_server (Shishi ** handle)
     389                 :            : {
     390                 :            :   int rc;
     391                 :            : 
     392 [ #  # ][ #  # ]:          0 :   if (!handle || !(*handle = shishi_server ()))
     393                 :          0 :     return SHISHI_HANDLE_ERROR;
     394                 :            : 
     395                 :          0 :   rc = shishi_cfg_from_file (*handle,
     396                 :            :                              shishi_cfg_default_systemfile (*handle));
     397         [ #  # ]:          0 :   if (rc == SHISHI_FOPEN_ERROR)
     398                 :          0 :     shishi_warn (*handle, "%s: %s", shishi_cfg_default_systemfile (*handle),
     399                 :            :                  strerror (errno));
     400 [ #  # ][ #  # ]:          0 :   if (rc != SHISHI_OK && rc != SHISHI_FOPEN_ERROR)
     401                 :          0 :     return rc;
     402                 :            : 
     403                 :          0 :   return SHISHI_OK;
     404                 :            : }
     405                 :            : 
     406                 :            : /**
     407                 :            :  * shishi_init_server_with_paths:
     408                 :            :  * @handle: pointer to handle to be created.
     409                 :            :  * @systemcfgfile: Filename of system configuration, or NULL.
     410                 :            :  *
     411                 :            :  * Create a Shishi library handle, using shishi_server(), and read the
     412                 :            :  * system configuration file from specified location.  The paths to
     413                 :            :  * the system configuration file is decided at compile time, and is
     414                 :            :  * $sysconfdir/shishi.conf.  The handle is allocated regardless of
     415                 :            :  * return values, except for SHISHI_HANDLE_ERROR which indicates a
     416                 :            :  * problem allocating the handle.  (The other error conditions comes
     417                 :            :  * from reading the file.)
     418                 :            :  *
     419                 :            :  * Return value: Returns SHISHI_OK iff successful.
     420                 :            :  **/
     421                 :            : int
     422                 :          0 : shishi_init_server_with_paths (Shishi ** handle, const char *systemcfgfile)
     423                 :            : {
     424                 :            :   int rc;
     425                 :            : 
     426 [ #  # ][ #  # ]:          0 :   if (!handle || !(*handle = shishi_server ()))
     427                 :          0 :     return SHISHI_HANDLE_ERROR;
     428                 :            : 
     429         [ #  # ]:          0 :   if (!systemcfgfile)
     430                 :          0 :     systemcfgfile = shishi_cfg_default_systemfile (*handle);
     431                 :            : 
     432                 :          0 :   rc = shishi_cfg_from_file (*handle, systemcfgfile);
     433         [ #  # ]:          0 :   if (rc == SHISHI_FOPEN_ERROR)
     434                 :          0 :     shishi_warn (*handle, "%s: %s", systemcfgfile, strerror (errno));
     435 [ #  # ][ #  # ]:          0 :   if (rc != SHISHI_OK && rc != SHISHI_FOPEN_ERROR)
     436                 :          0 :     return rc;
     437                 :            : 
     438                 :          0 :   return SHISHI_OK;
     439                 :            : }

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