LCOV - code coverage report
Current view: top level - shishi/lib - as.c (source / functions) Hit Total Coverage
Test: GNU Shishi Lines: 0 174 0.0 %
Date: 2010-05-20 Functions: 0 20 0.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 88 0.0 %

           Branch data     Line data    Source code
       1                 :            : /* as.c --- High level client AS functions
       2                 :            :  * Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 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 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 but
      12                 :            :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14                 :            :  * 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                 :            : struct Shishi_as
      26                 :            : {
      27                 :            :   Shishi *handle;
      28                 :            :   Shishi_asn1 asreq;
      29                 :            :   Shishi_asn1 asrep;
      30                 :            :   Shishi_asn1 krberror;
      31                 :            :   Shishi_tkt *tkt;
      32                 :            : };
      33                 :            : 
      34                 :            : /**
      35                 :            :  * shishi_as:
      36                 :            :  * @handle: shishi handle as allocated by shishi_init().
      37                 :            :  * @as: holds pointer to newly allocate Shishi_as structure.
      38                 :            :  *
      39                 :            :  * Allocate a new AS exchange variable.
      40                 :            :  *
      41                 :            :  * Return value: Returns SHISHI_OK iff successful.
      42                 :            :  **/
      43                 :            : int
      44                 :          0 : shishi_as (Shishi * handle, Shishi_as ** as)
      45                 :            : {
      46                 :            :   Shishi_as *las;
      47                 :            :   int res;
      48                 :            : 
      49                 :          0 :   *as = xmalloc (sizeof (**as));
      50                 :          0 :   las = *as;
      51                 :          0 :   memset (las, 0, sizeof (*las));
      52                 :            : 
      53                 :          0 :   las->handle = handle;
      54                 :            : 
      55                 :          0 :   las->asreq = shishi_asreq (handle);
      56         [ #  # ]:          0 :   if (las->asreq == NULL)
      57                 :            :     {
      58                 :          0 :       shishi_error_printf (handle, "Could not create AS-REQ: %s\n",
      59                 :            :                            shishi_error (handle));
      60                 :          0 :       return SHISHI_ASN1_ERROR;
      61                 :            :     }
      62                 :            : 
      63                 :          0 :   las->asrep = shishi_asrep (handle);
      64         [ #  # ]:          0 :   if (las->asrep == NULL)
      65                 :            :     {
      66                 :          0 :       shishi_error_printf (handle, "Could not create AS-REP: %s\n",
      67                 :            :                            shishi_error (handle));
      68                 :          0 :       return SHISHI_ASN1_ERROR;
      69                 :            :     }
      70                 :            : 
      71                 :          0 :   las->krberror = shishi_krberror (handle);
      72         [ #  # ]:          0 :   if (las->krberror == NULL)
      73                 :            :     {
      74                 :          0 :       shishi_error_printf (handle, "Could not create KRB-ERROR: %s\n",
      75                 :            :                            shishi_error (handle));
      76                 :          0 :       return SHISHI_ASN1_ERROR;
      77                 :            :     }
      78                 :            : 
      79                 :          0 :   res = shishi_tkt (handle, &las->tkt);
      80         [ #  # ]:          0 :   if (res != SHISHI_OK)
      81                 :          0 :     return res;
      82                 :            : 
      83                 :          0 :   res = shishi_tkt_flags_set (las->tkt, SHISHI_TICKETFLAGS_INITIAL);
      84         [ #  # ]:          0 :   if (res != SHISHI_OK)
      85                 :          0 :     return res;
      86                 :            : 
      87                 :          0 :   return SHISHI_OK;
      88                 :            : }
      89                 :            : 
      90                 :            : /**
      91                 :            :  * shishi_as_done:
      92                 :            :  * @as: structure that holds information about AS exchange
      93                 :            :  *
      94                 :            :  * Deallocate resources associated with AS exchange.  This should be
      95                 :            :  * called by the application when it no longer need to utilize the AS
      96                 :            :  * exchange handle.
      97                 :            :  **/
      98                 :            : void
      99                 :          0 : shishi_as_done (Shishi_as * as)
     100                 :            : {
     101                 :          0 :   shishi_asn1_done (as->handle, as->asreq);
     102                 :          0 :   shishi_asn1_done (as->handle, as->asrep);
     103                 :          0 :   shishi_asn1_done (as->handle, as->krberror);
     104                 :          0 :   shishi_tkt_done (as->tkt);
     105                 :          0 :   free (as);
     106                 :          0 : }
     107                 :            : 
     108                 :            : /* TODO: add shishi_as_clientserver(h,p,a,client,server) and make the
     109                 :            :    shishi_as_cnamerealmsname function take real cname/sname pointer
     110                 :            :    arrays. */
     111                 :            : 
     112                 :            : /**
     113                 :            :  * shishi_as_req:
     114                 :            :  * @as: structure that holds information about AS exchange
     115                 :            :  *
     116                 :            :  * Get ASN.1 AS-REQ structure from AS exchange.
     117                 :            :  *
     118                 :            :  * Return value: Returns the generated AS-REQ packet from the AS
     119                 :            :  *               exchange, or NULL if not yet set or an error occured.
     120                 :            :  **/
     121                 :            : Shishi_asn1
     122                 :          0 : shishi_as_req (Shishi_as * as)
     123                 :            : {
     124                 :          0 :   return as->asreq;
     125                 :            : }
     126                 :            : 
     127                 :            : /**
     128                 :            :  * shishi_as_req_build:
     129                 :            :  * @as: structure that holds information about AS exchange
     130                 :            :  *
     131                 :            :  * Possibly remove unset fields (e.g., rtime).
     132                 :            :  *
     133                 :            :  * Return value: Returns SHISHI_OK iff successful.
     134                 :            :  **/
     135                 :            : int
     136                 :          0 : shishi_as_req_build (Shishi_as * as)
     137                 :            : {
     138                 :            :   int res;
     139                 :            : 
     140                 :          0 :   res = shishi_kdcreq_build (as->handle, as->asreq);
     141         [ #  # ]:          0 :   if (res != SHISHI_OK)
     142                 :          0 :     return res;
     143                 :            : 
     144                 :          0 :   return SHISHI_OK;
     145                 :            : }
     146                 :            : 
     147                 :            : /**
     148                 :            :  * shishi_as_req_set:
     149                 :            :  * @as: structure that holds information about AS exchange
     150                 :            :  * @asreq: asreq to store in AS.
     151                 :            :  *
     152                 :            :  * Set the AS-REQ in the AS exchange.
     153                 :            :  **/
     154                 :            : void
     155                 :          0 : shishi_as_req_set (Shishi_as * as, Shishi_asn1 asreq)
     156                 :            : {
     157         [ #  # ]:          0 :   if (as->asreq)
     158                 :          0 :     shishi_asn1_done (as->handle, as->asreq);
     159                 :          0 :   as->asreq = asreq;
     160                 :          0 : }
     161                 :            : 
     162                 :            : /**
     163                 :            :  * shishi_as_req_der:
     164                 :            :  * @as: structure that holds information about AS exchange
     165                 :            :  * @out: output array with newly allocated DER encoding of AS-REQ.
     166                 :            :  * @outlen: length of output array with DER encoding of AS-REQ.
     167                 :            :  *
     168                 :            :  * DER encode AS-REQ.  @out is allocated by this function, and it is
     169                 :            :  * the responsibility of caller to deallocate it.
     170                 :            :  *
     171                 :            :  * Return value: Returns SHISHI_OK iff successful.
     172                 :            :  **/
     173                 :            : int
     174                 :          0 : shishi_as_req_der (Shishi_as * as, char **out, size_t * outlen)
     175                 :            : {
     176                 :            :   int rc;
     177                 :            : 
     178                 :          0 :   rc = shishi_asn1_to_der (as->handle, as->asreq, out, outlen);
     179         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     180                 :          0 :     return rc;
     181                 :            : 
     182                 :          0 :   return SHISHI_OK;
     183                 :            : }
     184                 :            : 
     185                 :            : /**
     186                 :            :  * shishi_as_req_der_set:
     187                 :            :  * @as: structure that holds information about AS exchange
     188                 :            :  * @der: input array with DER encoded AP-REQ.
     189                 :            :  * @derlen: length of input array with DER encoded AP-REQ.
     190                 :            :  *
     191                 :            :  * DER decode AS-REQ and set it AS exchange.  If decoding fails, the
     192                 :            :  * AS-REQ in the AS exchange remains.
     193                 :            :  *
     194                 :            :  * Return value: Returns SHISHI_OK.
     195                 :            :  **/
     196                 :            : int
     197                 :          0 : shishi_as_req_der_set (Shishi_as * as, char *der, size_t derlen)
     198                 :            : {
     199                 :            :   Shishi_asn1 asreq;
     200                 :            : 
     201                 :          0 :   asreq = shishi_der2asn1_asreq (as->handle, der, derlen);
     202                 :            : 
     203         [ #  # ]:          0 :   if (asreq == NULL)
     204                 :          0 :     return SHISHI_ASN1_ERROR;
     205                 :            : 
     206                 :          0 :   as->asreq = asreq;
     207                 :            : 
     208                 :          0 :   return SHISHI_OK;
     209                 :            : }
     210                 :            : 
     211                 :            : /**
     212                 :            :  * shishi_as_rep:
     213                 :            :  * @as: structure that holds information about AS exchange
     214                 :            :  *
     215                 :            :  * Get ASN.1 AS-REP structure from AS exchange.
     216                 :            :  *
     217                 :            :  * Return value: Returns the received AS-REP packet from the AS
     218                 :            :  *               exchange, or NULL if not yet set or an error occured.
     219                 :            :  **/
     220                 :            : Shishi_asn1
     221                 :          0 : shishi_as_rep (Shishi_as * as)
     222                 :            : {
     223                 :          0 :   return as->asrep;
     224                 :            : }
     225                 :            : 
     226                 :            : /**
     227                 :            :  * shishi_as_rep_process:
     228                 :            :  * @as: structure that holds information about AS exchange
     229                 :            :  * @key: user's key, used to encrypt the encrypted part of the AS-REP.
     230                 :            :  * @password: user's password, used if key is NULL.
     231                 :            :  *
     232                 :            :  * Process new AS-REP and set ticket.  The key is used to decrypt the
     233                 :            :  * AP-REP.  If both key and password is NULL, the user is queried for
     234                 :            :  * it.
     235                 :            :  *
     236                 :            :  * Return value: Returns SHISHI_OK iff successful.
     237                 :            :  **/
     238                 :            : int
     239                 :          0 : shishi_as_rep_process (Shishi_as * as, Shishi_key * key, const char *password)
     240                 :            : {
     241                 :            :   Shishi_asn1 ticket, kdcreppart;
     242                 :            :   int res;
     243                 :            : 
     244         [ #  # ]:          0 :   if (VERBOSE (as->handle))
     245                 :          0 :     printf ("Processing AS-REQ and AS-REP...\n");
     246                 :            : 
     247         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     248                 :          0 :     shishi_kdcreq_print (as->handle, stdout, as->asreq);
     249                 :            : 
     250         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     251                 :          0 :     shishi_kdcrep_print (as->handle, stdout, as->asrep);
     252                 :            : 
     253 [ #  # ][ #  # ]:          0 :   if (key == NULL && password == NULL)
     254                 :            :     {
     255                 :            :       char *passwd;
     256                 :            :       char *user;
     257                 :            :       size_t userlen;
     258                 :            : 
     259                 :          0 :       res = shishi_asreq_clientrealm (as->handle, as->asreq, &user, &userlen);
     260         [ #  # ]:          0 :       if (res != SHISHI_OK)
     261                 :            :         {
     262                 :          0 :           shishi_error_printf (as->handle, "Could not extract cname and "
     263                 :            :                                "realm from AS-REQ: %s\n",
     264                 :            :                                shishi_strerror (res));
     265                 :          0 :           return res;
     266                 :            :         }
     267                 :            : 
     268                 :          0 :       res = shishi_prompt_password (as->handle, &passwd,
     269                 :            :                                     "Enter password for `%s': ", user);
     270                 :          0 :       free (user);
     271         [ #  # ]:          0 :       if (res != SHISHI_OK)
     272                 :            :         {
     273                 :          0 :           shishi_error_printf (as->handle, "Reading password failed: %s\n",
     274                 :            :                                shishi_strerror (res));
     275                 :          0 :           return res;
     276                 :            :         }
     277                 :            : 
     278                 :          0 :       res = shishi_as_process (as->handle, as->asreq, as->asrep,
     279                 :            :                                passwd, &kdcreppart);
     280                 :          0 :       free (passwd);
     281                 :            :     }
     282         [ #  # ]:          0 :   else if (key == NULL)
     283                 :          0 :     res = shishi_as_process (as->handle, as->asreq, as->asrep,
     284                 :            :                              password, &kdcreppart);
     285                 :            :   else
     286                 :          0 :     res = shishi_kdc_process (as->handle, as->asreq, as->asrep, key,
     287                 :            :                               SHISHI_KEYUSAGE_ENCASREPPART, &kdcreppart);
     288         [ #  # ]:          0 :   if (res != SHISHI_OK)
     289                 :          0 :     return res;
     290                 :            : 
     291         [ #  # ]:          0 :   if (VERBOSE (as->handle))
     292                 :          0 :     printf ("Got EncKDCRepPart...\n");
     293                 :            : 
     294         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     295                 :          0 :     shishi_enckdcreppart_print (as->handle, stdout, kdcreppart);
     296                 :            : 
     297                 :          0 :   res = shishi_kdcrep_get_ticket (as->handle, as->asrep, &ticket);
     298         [ #  # ]:          0 :   if (res != SHISHI_OK)
     299                 :            :     {
     300                 :          0 :       shishi_error_printf (as->handle,
     301                 :            :                            "Could not extract ticket from AS-REP: %s",
     302                 :            :                            shishi_error (as->handle));
     303                 :          0 :       return res;
     304                 :            :     }
     305                 :            : 
     306         [ #  # ]:          0 :   if (VERBOSE (as->handle))
     307                 :          0 :     printf ("Got Ticket...\n");
     308                 :            : 
     309         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     310                 :          0 :     shishi_ticket_print (as->handle, stdout, ticket);
     311                 :            : 
     312                 :            :   /* XXX */
     313                 :          0 :   as->tkt = shishi_tkt2 (as->handle, ticket, kdcreppart, as->asrep);
     314                 :            : 
     315                 :          0 :   return SHISHI_OK;
     316                 :            : }
     317                 :            : 
     318                 :            : /**
     319                 :            :  * shishi_as_rep_build:
     320                 :            :  * @as: structure that holds information about AS exchange
     321                 :            :  * @key: user's key, used to encrypt the encrypted part of the AS-REP.
     322                 :            :  *
     323                 :            :  * Build AS-REP.
     324                 :            :  *
     325                 :            :  * Return value: Returns SHISHI_OK iff successful.
     326                 :            :  **/
     327                 :            : int
     328                 :          0 : shishi_as_rep_build (Shishi_as * as, Shishi_key * key)
     329                 :            : {
     330                 :            :   int rc;
     331                 :            : 
     332                 :            :   /* XXX there are reasons for having padata in AS-REP */
     333                 :          0 :   rc = shishi_kdcrep_clear_padata (as->handle, as->asrep);
     334         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     335                 :          0 :     return rc;
     336                 :            : 
     337                 :          0 :   rc = shishi_enckdcreppart_populate_encticketpart
     338                 :            :     (as->handle, shishi_tkt_enckdcreppart (as->tkt),
     339                 :            :      shishi_tkt_encticketpart (as->tkt));
     340         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     341                 :          0 :     return rc;
     342                 :            : 
     343                 :          0 :   rc = shishi_kdc_copy_nonce (as->handle, as->asreq,
     344                 :            :                               shishi_tkt_enckdcreppart (as->tkt));
     345         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     346                 :          0 :     return rc;
     347                 :            : 
     348                 :          0 :   rc = shishi_kdcrep_add_enc_part (as->handle,
     349                 :            :                                    as->asrep,
     350                 :            :                                    key,
     351                 :            :                                    SHISHI_KEYUSAGE_ENCASREPPART,
     352                 :            :                                    shishi_tkt_enckdcreppart (as->tkt));
     353         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     354                 :          0 :     return rc;
     355                 :            : 
     356                 :          0 :   rc = shishi_kdcrep_set_ticket (as->handle, as->asrep,
     357                 :            :                                  shishi_tkt_ticket (as->tkt));
     358         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     359                 :          0 :     return rc;
     360                 :            : 
     361                 :          0 :   rc = shishi_kdc_copy_crealm (as->handle, as->asrep,
     362                 :            :                                shishi_tkt_encticketpart (as->tkt));
     363         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     364                 :          0 :     return rc;
     365                 :            : 
     366                 :          0 :   rc = shishi_kdc_copy_cname (as->handle, as->asrep,
     367                 :            :                               shishi_tkt_encticketpart (as->tkt));
     368         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     369                 :          0 :     return rc;
     370                 :            : 
     371                 :          0 :   return SHISHI_OK;
     372                 :            : }
     373                 :            : 
     374                 :            : /**
     375                 :            :  * shishi_as_rep_der:
     376                 :            :  * @as: structure that holds information about AS exchange
     377                 :            :  * @out: output array with newly allocated DER encoding of AS-REP.
     378                 :            :  * @outlen: length of output array with DER encoding of AS-REP.
     379                 :            :  *
     380                 :            :  * DER encode AS-REP. @out is allocated by this function, and it is
     381                 :            :  * the responsibility of caller to deallocate it.
     382                 :            :  *
     383                 :            :  * Return value: Returns SHISHI_OK iff successful.
     384                 :            :  **/
     385                 :            : int
     386                 :          0 : shishi_as_rep_der (Shishi_as * as, char **out, size_t * outlen)
     387                 :            : {
     388                 :            :   int rc;
     389                 :            : 
     390                 :          0 :   rc = shishi_asn1_to_der (as->handle, as->asrep, out, outlen);
     391         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     392                 :          0 :     return rc;
     393                 :            : 
     394                 :          0 :   return SHISHI_OK;
     395                 :            : }
     396                 :            : 
     397                 :            : /**
     398                 :            :  * shishi_as_rep_set:
     399                 :            :  * @as: structure that holds information about AS exchange
     400                 :            :  * @asrep: asrep to store in AS.
     401                 :            :  *
     402                 :            :  * Set the AS-REP in the AS exchange.
     403                 :            :  **/
     404                 :            : void
     405                 :          0 : shishi_as_rep_set (Shishi_as * as, Shishi_asn1 asrep)
     406                 :            : {
     407         [ #  # ]:          0 :   if (as->asrep)
     408                 :          0 :     shishi_asn1_done (as->handle, as->asrep);
     409                 :          0 :   as->asrep = asrep;
     410                 :          0 : }
     411                 :            : 
     412                 :            : /**
     413                 :            :  * shishi_as_rep_der_set:
     414                 :            :  * @as: structure that holds information about AS exchange
     415                 :            :  * @der: input array with DER encoded AP-REP.
     416                 :            :  * @derlen: length of input array with DER encoded AP-REP.
     417                 :            :  *
     418                 :            :  * DER decode AS-REP and set it AS exchange.  If decoding fails, the
     419                 :            :  * AS-REP in the AS exchange remains.
     420                 :            :  *
     421                 :            :  * Return value: Returns SHISHI_OK.
     422                 :            :  **/
     423                 :            : int
     424                 :          0 : shishi_as_rep_der_set (Shishi_as * as, char *der, size_t derlen)
     425                 :            : {
     426                 :            :   Shishi_asn1 asrep;
     427                 :            : 
     428                 :          0 :   asrep = shishi_der2asn1_asrep (as->handle, der, derlen);
     429                 :            : 
     430         [ #  # ]:          0 :   if (asrep == NULL)
     431                 :          0 :     return SHISHI_ASN1_ERROR;
     432                 :            : 
     433                 :          0 :   as->asrep = asrep;
     434                 :            : 
     435                 :          0 :   return SHISHI_OK;
     436                 :            : }
     437                 :            : 
     438                 :            : /**
     439                 :            :  * shishi_as_krberror:
     440                 :            :  * @as: structure that holds information about AS exchange
     441                 :            :  *
     442                 :            :  * Get ASN.1 KRB-ERROR structure from AS exchange.
     443                 :            :  *
     444                 :            :  * Return value: Returns the received KRB-ERROR packet from the AS
     445                 :            :  *               exchange, or NULL if not yet set or an error occured.
     446                 :            :  **/
     447                 :            : Shishi_asn1
     448                 :          0 : shishi_as_krberror (Shishi_as * as)
     449                 :            : {
     450                 :          0 :   return as->krberror;
     451                 :            : }
     452                 :            : 
     453                 :            : /**
     454                 :            :  * shishi_as_krberror_der:
     455                 :            :  * @as: structure that holds information about AS exchange
     456                 :            :  * @out: output array with newly allocated DER encoding of KRB-ERROR.
     457                 :            :  * @outlen: length of output array with DER encoding of KRB-ERROR.
     458                 :            :  *
     459                 :            :  * DER encode KRB-ERROR. @out is allocated by this function, and it is
     460                 :            :  * the responsibility of caller to deallocate it.
     461                 :            :  *
     462                 :            :  * Return value: Returns SHISHI_OK iff successful.
     463                 :            :  **/
     464                 :            : int
     465                 :          0 : shishi_as_krberror_der (Shishi_as * as, char **out, size_t * outlen)
     466                 :            : {
     467                 :            :   int rc;
     468                 :            : 
     469                 :          0 :   rc = shishi_krberror_der (as->handle, as->krberror, out, outlen);
     470         [ #  # ]:          0 :   if (rc != SHISHI_OK)
     471                 :          0 :     return rc;
     472                 :            : 
     473                 :          0 :   return SHISHI_OK;
     474                 :            : }
     475                 :            : 
     476                 :            : /**
     477                 :            :  * shishi_as_krberror_set:
     478                 :            :  * @as: structure that holds information about AS exchange
     479                 :            :  * @krberror: krberror to store in AS.
     480                 :            :  *
     481                 :            :  * Set the KRB-ERROR in the AS exchange.
     482                 :            :  **/
     483                 :            : void
     484                 :          0 : shishi_as_krberror_set (Shishi_as * as, Shishi_asn1 krberror)
     485                 :            : {
     486         [ #  # ]:          0 :   if (as->krberror)
     487                 :          0 :     shishi_asn1_done (as->handle, as->krberror);
     488                 :          0 :   as->krberror = krberror;
     489                 :          0 : }
     490                 :            : 
     491                 :            : /**
     492                 :            :  * shishi_as_tkt:
     493                 :            :  * @as: structure that holds information about AS exchange
     494                 :            :  *
     495                 :            :  * Get Ticket in AS exchange.
     496                 :            :  *
     497                 :            :  * Return value: Returns the newly acquired tkt from the AS
     498                 :            :  *               exchange, or NULL if not yet set or an error occured.
     499                 :            :  **/
     500                 :            : Shishi_tkt *
     501                 :          0 : shishi_as_tkt (Shishi_as * as)
     502                 :            : {
     503                 :          0 :   return as->tkt;
     504                 :            : }
     505                 :            : 
     506                 :            : /**
     507                 :            :  * shishi_as_tkt_set:
     508                 :            :  * @as: structure that holds information about AS exchange
     509                 :            :  * @tkt: tkt to store in AS.
     510                 :            :  *
     511                 :            :  * Set the Tkt in the AS exchange.
     512                 :            :  **/
     513                 :            : void
     514                 :          0 : shishi_as_tkt_set (Shishi_as * as, Shishi_tkt * tkt)
     515                 :            : {
     516                 :          0 :   as->tkt = tkt;
     517                 :          0 : }
     518                 :            : 
     519                 :            : /**
     520                 :            :  * shishi_as_sendrecv_hint:
     521                 :            :  * @as: structure that holds information about AS exchange
     522                 :            :  * @hint: additional parameters that modify connection behaviour, or %NULL.
     523                 :            :  *
     524                 :            :  * Send AS-REQ and receive AS-REP or KRB-ERROR.  This is the initial
     525                 :            :  * authentication, usually used to acquire a Ticket Granting Ticket.
     526                 :            :  * The @hint structure can be used to set, e.g., parameters for TLS
     527                 :            :  * authentication.
     528                 :            :  *
     529                 :            :  * Return value: Returns SHISHI_OK iff successful.
     530                 :            :  **/
     531                 :            : int
     532                 :          0 : shishi_as_sendrecv_hint (Shishi_as * as, Shishi_tkts_hint * hint)
     533                 :            : {
     534                 :            :   int res;
     535                 :            : 
     536         [ #  # ]:          0 :   if (VERBOSE (as->handle))
     537                 :          0 :     printf ("Sending AS-REQ...\n");
     538                 :            : 
     539         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     540                 :          0 :     shishi_kdcreq_print (as->handle, stdout, as->asreq);
     541                 :            : 
     542                 :          0 :   res = shishi_kdcreq_sendrecv_hint (as->handle, as->asreq, &as->asrep, hint);
     543         [ #  # ]:          0 :   if (res == SHISHI_GOT_KRBERROR)
     544                 :            :     {
     545                 :          0 :       as->krberror = as->asrep;
     546                 :          0 :       as->asrep = NULL;
     547                 :            : 
     548         [ #  # ]:          0 :       if (VERBOSE (as->handle))
     549                 :          0 :         printf ("Received KRB-ERROR...\n");
     550         [ #  # ]:          0 :       if (VERBOSEASN1 (as->handle))
     551                 :          0 :         shishi_krberror_print (as->handle, stdout, as->krberror);
     552         [ #  # ]:          0 :       if (VERBOSEASN1 (as->handle))
     553                 :          0 :         shishi_krberror_pretty_print (as->handle, stdout, as->krberror);
     554                 :            :     }
     555         [ #  # ]:          0 :   if (res != SHISHI_OK)
     556                 :          0 :     return res;
     557                 :            : 
     558         [ #  # ]:          0 :   if (VERBOSE (as->handle))
     559                 :          0 :     printf ("Received AS-REP...\n");
     560                 :            : 
     561         [ #  # ]:          0 :   if (VERBOSEASN1 (as->handle))
     562                 :          0 :     shishi_kdcrep_print (as->handle, stdout, as->asrep);
     563                 :            : 
     564                 :          0 :   return SHISHI_OK;
     565                 :            : }
     566                 :            : 
     567                 :            : /**
     568                 :            :  * shishi_as_sendrecv:
     569                 :            :  * @as: structure that holds information about AS exchange
     570                 :            :  *
     571                 :            :  * Send AS-REQ and receive AS-REP or KRB-ERROR.  This is the initial
     572                 :            :  * authentication, usually used to acquire a Ticket Granting Ticket.
     573                 :            :  *
     574                 :            :  * Return value: Returns SHISHI_OK iff successful.
     575                 :            :  **/
     576                 :            : int
     577                 :          0 : shishi_as_sendrecv (Shishi_as * as)
     578                 :            : {
     579                 :          0 :   return shishi_as_sendrecv_hint (as, NULL);
     580                 :            : }

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