lib/gssapi/mech/gss_store_cred.c

   1 /*
   2  * Copyright (c) 2009 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "mech_locl.h"
  35
  36 OM_uint32
  37 gss_store_cred(OM_uint32         *minor_status,
  38                gss_cred_id_t     input_cred_handle,
  39                gss_cred_usage_t  cred_usage,
  40                const gss_OID     desired_mech,
  41                OM_uint32         overwrite_cred,
  42                OM_uint32         default_cred,
  43                gss_OID_set       *elements_stored,
  44                gss_cred_usage_t  *cred_usage_stored)
  45 {
  46     struct _gss_cred *cred = (struct _gss_cred *) input_cred_handle;
  47     struct _gss_mechanism_cred *mc;
  48     OM_uint32 maj, junk;
  49
  50     if (minor_status == NULL)
  51         return GSS_S_FAILURE;
  52     if (elements_stored)
  53         *elements_stored = NULL;
  54     if (cred_usage_stored)
  55         *cred_usage_stored = 0;
  56
  57     if (cred == NULL)
  58         return GSS_S_NO_CONTEXT;
  59
  60     if (elements_stored) {
  61         maj = gss_create_empty_oid_set(minor_status, elements_stored);
  62         if (maj != GSS_S_COMPLETE)
  63             return maj;
  64     }
  65
  66     SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
  67         gssapi_mech_interface m = mc->gmc_mech;
  68
  69         if (m == NULL || m->gm_store_cred == NULL)
  70             continue;
  71
  72         if (desired_mech) {
  73             maj = gss_oid_equal(&m->gm_mech_oid, desired_mech);
  74             if (maj != 0)
  75                 continue;
  76         }
  77
  78         maj = (m->gm_store_cred)(minor_status, mc->gmc_cred,
  79                                  cred_usage, desired_mech, overwrite_cred,
  80                                  default_cred, NULL, cred_usage_stored);
  81         if (maj != GSS_S_COMPLETE) {
  82             gss_release_oid_set(&junk, elements_stored);
  83             return maj;
  84         }
  85
  86         if (elements_stored) {
  87             gss_add_oid_set_member(&junk,
  88                                    &m->gm_mech_oid,
  89                                    elements_stored);
  90         }
  91
  92     }
  93     return GSS_S_COMPLETE;
  94 }