lib/libgssapi/gss_display_status.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  *      $FreeBSD$
  27  */
  28
  29 #include <gssapi/gssapi.h>
  30 #include <string.h>
  31
  32 #include "mech_switch.h"
  33
  34 struct _gss_status_desc {
  35         OM_uint32       gs_status;
  36         const char*     gs_desc;
  37 };
  38
  39 static struct _gss_status_desc _gss_status_descs[] = {
  40         GSS_S_BAD_MECH,         "An unsupported mechanism was requested",
  41         GSS_S_BAD_NAME,         "An invalid name was supplied",
  42         GSS_S_BAD_NAMETYPE,     "A supplied name was of an unsupported type",
  43         GSS_S_BAD_BINDINGS,     "Incorrect channel bindings were supplied",
  44         GSS_S_BAD_STATUS,       "An invalid status code was supplied",
  45         GSS_S_BAD_MIC,          "A token had an invalid MIC",
  46         GSS_S_NO_CRED,          "No credentials were supplied, or the "
  47                                 "credentials were unavailable or inaccessible",
  48         GSS_S_NO_CONTEXT,       "No context has been established",
  49         GSS_S_DEFECTIVE_TOKEN,  "A token was invalid",
  50         GSS_S_DEFECTIVE_CREDENTIAL, "A credential was invalid",
  51         GSS_S_CREDENTIALS_EXPIRED, "The referenced credentials have expired",
  52         GSS_S_CONTEXT_EXPIRED,  "The context has expired",
  53         GSS_S_FAILURE,          "Miscellaneous failure",
  54         GSS_S_BAD_QOP,          "The quality-of-protection requested could "
  55                                 "not be provided",
  56         GSS_S_UNAUTHORIZED,     "The operation is forbidden by local security "
  57                                 "policy",
  58         GSS_S_UNAVAILABLE,      "The operation or option is unavailable",
  59         GSS_S_DUPLICATE_ELEMENT, "The requested credential element already "
  60                                 "exists",
  61         GSS_S_NAME_NOT_MN,      "The provided name was not a mechanism name"
  62 };
  63 #define _gss_status_desc_count \
  64         sizeof(_gss_status_descs) / sizeof(_gss_status_descs[0])
  65
  66
  67 OM_uint32
  68 gss_display_status(OM_uint32 *minor_status,
  69     OM_uint32 status_value,
  70     int status_type,
  71     const gss_OID mech_type,
  72     OM_uint32 *message_content,
  73     gss_buffer_t status_string)
  74 {
  75         OM_uint32 major_status;
  76         struct _gss_mech_switch *m;
  77         int i;
  78         const char *message;
  79
  80         *minor_status = 0;
  81         switch (status_type) {
  82         case GSS_C_GSS_CODE:
  83                 for (i = 0; i < _gss_status_desc_count; i++) {
  84                         if (_gss_status_descs[i].gs_status == status_value) {
  85                                 message = _gss_status_descs[i].gs_desc;
  86                                 status_string->length = strlen(message);
  87                                 status_string->value = strdup(message);
  88                                 return (GSS_S_COMPLETE);
  89                         }
  90                 }
  91
  92                 /*
  93                  * Fall through to attempt to get some underlying
  94                  * implementation to describe the value.
  95                  */
  96         case GSS_C_MECH_CODE:
  97                 SLIST_FOREACH(m, &_gss_mechs, gm_link) {
  98                         if (mech_type &&
  99                             !_gss_oid_equal(&m->gm_mech_oid, mech_type))
 100                                 continue;
 101                         major_status = m->gm_display_status(minor_status,
 102                             status_value, status_type, mech_type,
 103                             message_content, status_string);
 104                         if (major_status == GSS_S_COMPLETE)
 105                                 return (GSS_S_COMPLETE);
 106                 }
 107         }
 108
 109         return (GSS_S_BAD_STATUS);
 110 }