lib/gssapi/mech/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: src/lib/libgssapi/gss_display_status.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28 /*
  29  * Copyright (c) 1998 - 2005 Kungliga Tekniska Högskolan
  30  * (Royal Institute of Technology, Stockholm, Sweden).
  31  * All rights reserved.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  *
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  *
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  *
  44  * 3. Neither the name of the Institute nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  */
  60
  61 #include "mech_locl.h"
  62 RCSID("$Id$");
  63
  64 static const char *
  65 calling_error(OM_uint32 v)
  66 {
  67     static const char *msgs[] = {
  68         NULL,                   /* 0 */
  69         "A required input parameter could not be read.", /*  */
  70         "A required output parameter could not be written.", /*  */
  71         "A parameter was malformed"
  72     };
  73
  74     v >>= GSS_C_CALLING_ERROR_OFFSET;
  75
  76     if (v == 0)
  77         return "";
  78     else if (v >= sizeof(msgs)/sizeof(*msgs))
  79         return "unknown calling error";
  80     else
  81         return msgs[v];
  82 }
  83
  84 static const char *
  85 routine_error(OM_uint32 v)
  86 {
  87     static const char *msgs[] = {
  88         "Function completed successfully",                      /* 0 */
  89         "An unsupported mechanism was requested",
  90         "An invalid name was supplied",
  91         "A supplied name was of an unsupported type",
  92         "Incorrect channel bindings were supplied",
  93         "An invalid status code was supplied",
  94         "A token had an invalid MIC",
  95         "No credentials were supplied, "
  96         "or the credentials were unavailable or inaccessible.",
  97         "No context has been established",
  98         "A token was invalid",
  99         "A credential was invalid",
 100         "The referenced credentials have expired",
 101         "The context has expired",
 102         "Miscellaneous failure (see text)",
 103         "The quality-of-protection requested could not be provide",
 104         "The operation is forbidden by local security policy",
 105         "The operation or option is not available",
 106         "The requested credential element already exists",
 107         "The provided name was not a mechanism name.",
 108     };
 109
 110     v >>= GSS_C_ROUTINE_ERROR_OFFSET;
 111
 112     if (v >= sizeof(msgs)/sizeof(*msgs))
 113         return "unknown routine error";
 114     else
 115         return msgs[v];
 116 }
 117
 118 static const char *
 119 supplementary_error(OM_uint32 v)
 120 {
 121     static const char *msgs[] = {
 122         "normal completion",
 123         "continuation call to routine required",
 124         "duplicate per-message token detected",
 125         "timed-out per-message token detected",
 126         "reordered (early) per-message token detected",
 127         "skipped predecessor token(s) detected"
 128     };
 129
 130     v >>= GSS_C_SUPPLEMENTARY_OFFSET;
 131
 132     if (v >= sizeof(msgs)/sizeof(*msgs))
 133         return "unknown routine error";
 134     else
 135         return msgs[v];
 136 }
 137
 138
 139 OM_uint32 GSSAPI_LIB_FUNCTION
 140 gss_display_status(OM_uint32 *minor_status,
 141     OM_uint32 status_value,
 142     int status_type,
 143     const gss_OID mech_type,
 144     OM_uint32 *message_content,
 145     gss_buffer_t status_string)
 146 {
 147         OM_uint32 major_status;
 148
 149         _mg_buffer_zero(status_string);
 150         *message_content = 0;
 151
 152         major_status = _gss_mg_get_error(mech_type, status_type,
 153                                          status_value, status_string);
 154         if (major_status == GSS_S_COMPLETE) {
 155
 156             *message_content = 0;
 157             *minor_status = 0;
 158             return GSS_S_COMPLETE;
 159         }
 160
 161         *minor_status = 0;
 162         switch (status_type) {
 163         case GSS_C_GSS_CODE: {
 164                 char *buf;
 165
 166                 if (GSS_SUPPLEMENTARY_INFO(status_value))
 167                     asprintf(&buf, "%s", supplementary_error(
 168                         GSS_SUPPLEMENTARY_INFO(status_value)));
 169                 else
 170                     asprintf (&buf, "%s %s",
 171                         calling_error(GSS_CALLING_ERROR(status_value)),
 172                         routine_error(GSS_ROUTINE_ERROR(status_value)));
 173
 174                 if (buf == NULL)
 175                     break;
 176
 177                 status_string->length = strlen(buf);
 178                 status_string->value  = buf;
 179
 180                 return GSS_S_COMPLETE;
 181         }
 182         case GSS_C_MECH_CODE: {
 183                 OM_uint32 maj_junk, min_junk;
 184                 gss_buffer_desc oid;
 185                 char *buf;
 186
 187                 maj_junk = gss_oid_to_str(&min_junk, mech_type, &oid);
 188                 if (maj_junk != GSS_S_COMPLETE) {
 189                     oid.value = rk_UNCONST("unknown");
 190                     oid.length = 7;
 191                 }
 192
 193                 asprintf (&buf, "unknown mech-code %lu for mech %.*s",
 194                           (unsigned long)status_value,
 195                           (int)oid.length, (char *)oid.value);
 196                 if (maj_junk == GSS_S_COMPLETE)
 197                     gss_release_buffer(&min_junk, &oid);
 198
 199                 if (buf == NULL)
 200                     break;
 201
 202                 status_string->length = strlen(buf);
 203                 status_string->value  = buf;
 204
 205                 return GSS_S_COMPLETE;
 206         }
 207         }
 208         _mg_buffer_zero(status_string);
 209         return (GSS_S_BAD_STATUS);
 210 }