lib/gssapi/mech/gss_canonicalize_name.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/lib/libgssapi/gss_canonicalize_name.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30
  31 /**
  32  *  gss_canonicalize_name takes a Internal Name (IN) and converts in into a
  33  *  mechanism specific Mechanism Name (MN).
  34  *
  35  *  The input name may multiple name, or generic name types.
  36  *
  37  *  If the input_name if of the GSS_C_NT_USER_NAME, and the Kerberos
  38  *  mechanism is specified, the resulting MN type is a
  39  *  GSS_KRB5_NT_PRINCIPAL_NAME.
  40  *
  41  *  For more information about @ref internalVSmechname.
  42  *
  43  *  @param minor_status minor status code.
  44  *  @param input_name name to covert, unchanged by gss_canonicalize_name().
  45  *  @param mech_type the type to convert Name too.
  46  *  @param output_name the resulting type, release with
  47  *         gss_release_name(), independent of input_name.
  48  *
  49  *  @returns a gss_error code, see gss_display_status() about printing
  50  *         the error code.
  51  *
  52  *  @ingroup gssapi
  53  */
  54
  55 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
  56 gss_canonicalize_name(OM_uint32 *minor_status,
  57     const gss_name_t input_name,
  58     const gss_OID mech_type,
  59     gss_name_t *output_name)
  60 {
  61         OM_uint32 major_status;
  62         struct _gss_name *name = (struct _gss_name *) input_name;
  63         struct _gss_mechanism_name *mn;
  64         gssapi_mech_interface m;
  65         gss_name_t new_canonical_name;
  66
  67         *minor_status = 0;
  68         *output_name = 0;
  69
  70         major_status = _gss_find_mn(minor_status, name, mech_type, &mn);
  71         if (major_status)
  72                 return major_status;
  73
  74         m = mn->gmn_mech;
  75         major_status = m->gm_canonicalize_name(minor_status,
  76             mn->gmn_name, mech_type, &new_canonical_name);
  77         if (major_status) {
  78                 _gss_mg_error(m, major_status, *minor_status);
  79                 return (major_status);
  80         }
  81
  82         /*
  83          * Now we make a new name and mark it as an MN.
  84          */
  85         *minor_status = 0;
  86         name = malloc(sizeof(struct _gss_name));
  87         if (!name) {
  88                 m->gm_release_name(minor_status, &new_canonical_name);
  89                 *minor_status = ENOMEM;
  90                 return (GSS_S_FAILURE);
  91         }
  92         memset(name, 0, sizeof(struct _gss_name));
  93
  94         mn = malloc(sizeof(struct _gss_mechanism_name));
  95         if (!mn) {
  96                 m->gm_release_name(minor_status, &new_canonical_name);
  97                 free(name);
  98                 *minor_status = ENOMEM;
  99                 return (GSS_S_FAILURE);
 100         }
 101
 102         HEIM_SLIST_INIT(&name->gn_mn);
 103         mn->gmn_mech = m;
 104         mn->gmn_mech_oid = &m->gm_mech_oid;
 105         mn->gmn_name = new_canonical_name;
 106         HEIM_SLIST_INSERT_HEAD(&name->gn_mn, mn, gmn_link);
 107
 108         *output_name = (gss_name_t) name;
 109
 110         return (GSS_S_COMPLETE);
 111 }