Line data    Source code

       1             : /*-
       2             :  * Copyright (c) 2005 Doug Rabson
       3             :  * All rights reserved.
       4             :  *
       5             :  * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
       6             :  *
       7             :  * Redistribution and use in source and binary forms, with or without
       8             :  * modification, are permitted provided that the following conditions
       9             :  * are met:
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  * 2. Redistributions in binary form must reproduce the above copyright
      13             :  *    notice, this list of conditions and the following disclaimer in the
      14             :  *    documentation and/or other materials provided with the distribution.
      15             :  *
      16             :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
      17             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      18             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      19             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
      20             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      21             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      22             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      23             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      24             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      25             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      26             :  * SUCH DAMAGE.
      27             :  *
      28             :  *      $FreeBSD: src/lib/libgssapi/gss_export_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
      29             :  */
      30             : 
      31             : #include "mech_locl.h"
      32             : 
      33             : /**
      34             :  * Convert a GGS-API name from internal form to contiguous string.
      35             :  *
      36             :  * @sa gss_import_name(), @ref internalVSmechname.
      37             :  *
      38             :  * @param minor_status   minor status code
      39             :  * @param input_name     input name in internal name form
      40             :  * @param exported_name  output name in contiguos string form
      41             :  *
      42             :  * @returns a gss_error code, see gss_display_status() about printing
      43             :  *        the error code.
      44             :  *
      45             :  * @ingroup gssapi
      46             :  */
      47             : GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
      48           0 : gss_export_name(OM_uint32 *minor_status,
      49             :     gss_const_name_t input_name,
      50             :     gss_buffer_t exported_name)
      51             : {
      52           0 :         struct _gss_name *name = (struct _gss_name *) input_name;
      53           0 :         struct _gss_mechanism_name *mn;
      54             : 
      55           0 :         _mg_buffer_zero(exported_name);
      56             : 
      57             :         /*
      58             :          * If this name already has any attached MNs, export the first
      59             :          * one, otherwise export based on the first mechanism in our
      60             :          * list.
      61             :          */
      62           0 :         mn = HEIM_TAILQ_FIRST(&name->gn_mn);
      63           0 :         if (!mn) {
      64           0 :                 *minor_status = 0;
      65           0 :                 return (GSS_S_NAME_NOT_MN);
      66             :         }
      67             : 
      68           0 :         return mn->gmn_mech->gm_export_name(minor_status,
      69           0 :             mn->gmn_name, exported_name);
      70             : }
      71             : 
      72             : OM_uint32
      73           0 : gss_mg_export_name(OM_uint32 *minor_status,
      74             :                    const gss_const_OID mech,
      75             :                    const void *name,
      76             :                    size_t length, 
      77             :                    gss_buffer_t exported_name)
      78             : {
      79           0 :     uint8_t *buf;
      80             : 
      81           0 :     exported_name->length = 10 + length + mech->length;
      82           0 :     exported_name->value  = malloc(exported_name->length);
      83           0 :     if (exported_name->value == NULL) {
      84           0 :         *minor_status = ENOMEM;
      85           0 :         return GSS_S_FAILURE;
      86             :     }
      87             : 
      88             :     /* TOK, MECH_OID_LEN, DER(MECH_OID), NAME_LEN, NAME */
      89             : 
      90           0 :     buf = exported_name->value;
      91           0 :     memcpy(buf, "\x04\x01", 2);
      92           0 :     buf += 2;
      93           0 :     buf[0] = ((mech->length + 2) >> 8) & 0xff;
      94           0 :     buf[1] = (mech->length + 2) & 0xff;
      95           0 :     buf+= 2;
      96           0 :     buf[0] = 0x06;
      97           0 :     buf[1] = (mech->length) & 0xFF;
      98           0 :     buf+= 2;
      99             : 
     100           0 :     memcpy(buf, mech->elements, mech->length);
     101           0 :     buf += mech->length;
     102             : 
     103           0 :     buf[0] = (length >> 24) & 0xff;
     104           0 :     buf[1] = (length >> 16) & 0xff;
     105           0 :     buf[2] = (length >> 8) & 0xff;
     106           0 :     buf[3] = (length) & 0xff;
     107           0 :     buf += 4;
     108             : 
     109           0 :     memcpy (buf, name, length);
     110             : 
     111           0 :     *minor_status = 0;
     112           0 :     return GSS_S_COMPLETE;
     113             : }