mech_eap/query_meta_data.c

   1 /*
   2  * Copyright (c) 2011, JANET(UK)
   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  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  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  * 3. Neither the name of JANET(UK) nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*
  34  *
  35  */
  36
  37 #include "gssapiP_eap.h"
  38
  39 OM_uint32
  40 gssEapQueryMetaData(OM_uint32 *minor,
  41                     gss_const_OID mech GSSEAP_UNUSED,
  42                     gss_cred_id_t cred,
  43                     gss_ctx_id_t *context_handle,
  44                     const gss_name_t name,
  45                     OM_uint32 req_flags GSSEAP_UNUSED,
  46                     gss_buffer_t meta_data)
  47 {
  48     OM_uint32 major = GSS_S_COMPLETE;
  49     int isInitiator = (name != GSS_C_NO_NAME);
  50     gss_ctx_id_t ctx = *context_handle;
  51
  52     meta_data->length = 0;
  53     meta_data->value = NULL;
  54
  55     if (ctx == GSS_C_NO_CONTEXT) {
  56         major = gssEapAllocContext(minor, &ctx);
  57         if (GSS_ERROR(major))
  58             return major;
  59
  60         if (isInitiator)
  61             ctx->flags |= CTX_FLAG_INITIATOR;
  62     }
  63
  64     if (ctx->cred == GSS_C_NO_CREDENTIAL) {
  65         if (isInitiator) {
  66             major = gssEapResolveInitiatorCred(minor, cred,
  67                                                name, &ctx->cred);
  68         } else {
  69             major = gssEapAcquireCred(minor,
  70                                       GSS_C_NO_NAME,
  71                                       GSS_C_INDEFINITE,
  72                                       GSS_C_NO_OID_SET,
  73                                       GSS_C_ACCEPT,
  74                                       &ctx->cred,
  75                                       NULL,
  76                                       NULL);
  77         }
  78     }
  79
  80     if (*context_handle == GSS_C_NO_CONTEXT)
  81         *context_handle = ctx;
  82
  83     return major;
  84 }
  85
  86 OM_uint32 GSSAPI_CALLCONV
  87 gss_query_meta_data(OM_uint32 *minor,
  88                     gss_const_OID mech,
  89                     gss_cred_id_t cred,
  90                     gss_ctx_id_t *context_handle,
  91                     const gss_name_t name,
  92                     OM_uint32 req_flags,
  93                     gss_buffer_t meta_data)
  94 {
  95     gss_ctx_id_t ctx = *context_handle;
  96     OM_uint32 major;
  97
  98     if (cred != GSS_C_NO_CREDENTIAL)
  99         GSSEAP_MUTEX_LOCK(&cred->mutex);
 100
 101     if (*context_handle != GSS_C_NO_CONTEXT)
 102         GSSEAP_MUTEX_LOCK(&ctx->mutex);
 103
 104     major = gssEapQueryMetaData(minor, mech, cred, &ctx,
 105                                 name, req_flags, meta_data);
 106
 107     if (*context_handle != GSS_C_NO_CONTEXT)
 108         GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
 109     else
 110         *context_handle = ctx;
 111
 112     if (cred != GSS_C_NO_CREDENTIAL)
 113         GSSEAP_MUTEX_UNLOCK(&cred->mutex);
 114
 115     return major;
 116 }