util_radius.cpp

   1 /*
   2  * Copyright (c) 2010, 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 #include "gssapiP_eap.h"
  34
  35 VALUE_PAIR *
  36 gss_eap_radius_attr_provider::copyAvps(const VALUE_PAIR *in)
  37 {
  38     return NULL;
  39 }
  40
  41 gss_eap_radius_attr_provider::gss_eap_radius_attr_provider(void)
  42 {
  43     m_avps = NULL;
  44     m_authenticated = false;
  45 }
  46
  47 gss_eap_radius_attr_provider::~gss_eap_radius_attr_provider(void)
  48 {
  49     if (m_avps != NULL)
  50         rc_avpair_free(m_avps);
  51 }
  52
  53 bool
  54 gss_eap_radius_attr_provider::initFromExistingContext(const gss_eap_attr_ctx *manager,
  55                                                       const gss_eap_attr_provider *ctx)
  56 {
  57     if (!gss_eap_attr_provider::initFromExistingContext(manager, ctx))
  58         return false;
  59
  60     return true;
  61 }
  62
  63 bool
  64 gss_eap_radius_attr_provider::initFromGssContext(const gss_eap_attr_ctx *manager,
  65                                                  const gss_cred_id_t gssCred,
  66                                                  const gss_ctx_id_t gssCtx)
  67 {
  68     if (!gss_eap_attr_provider::initFromGssContext(manager, gssCred, gssCtx))
  69         return false;
  70
  71     return true;
  72 }
  73
  74 bool
  75 gss_eap_radius_attr_provider::getAttributeTypes(gss_eap_attr_enumeration_cb addAttribute, void *data) const
  76 {
  77     return true;
  78 }
  79
  80 void
  81 gss_eap_radius_attr_provider::setAttribute(int complete,
  82                                            const gss_buffer_t attr,
  83                                            const gss_buffer_t value)
  84 {
  85 }
  86
  87 void
  88 gss_eap_radius_attr_provider::deleteAttribute(const gss_buffer_t value)
  89 {
  90 }
  91
  92 bool
  93 gss_eap_radius_attr_provider::getAttribute(const gss_buffer_t attr,
  94                                            int *authenticated,
  95                                            int *complete,
  96                                            gss_buffer_t value,
  97                                            gss_buffer_t display_value,
  98                                            int *more) const
  99 {
 100     return false;
 101 }
 102
 103 bool
 104 gss_eap_radius_attr_provider::getAttribute(unsigned int attr,
 105                                            int *authenticated,
 106                                            int *complete,
 107                                            gss_buffer_t value,
 108                                            gss_buffer_t display_value,
 109                                            int *more) const
 110 {
 111     return false;
 112 }
 113
 114 gss_any_t
 115 gss_eap_radius_attr_provider::mapToAny(int authenticated,
 116                                        gss_buffer_t type_id) const
 117 {
 118     if (authenticated && !m_authenticated)
 119         return (gss_any_t)NULL;
 120
 121     return (gss_any_t)copyAvps(m_avps);
 122 }
 123
 124 void
 125 gss_eap_radius_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id,
 126                                                     gss_any_t input) const
 127 {
 128     rc_avpair_free((VALUE_PAIR *)input);
 129 }
 130
 131 void
 132 gss_eap_radius_attr_provider::exportToBuffer(gss_buffer_t buffer) const
 133 {
 134     buffer->length = 0;
 135     buffer->value = NULL;
 136 }
 137
 138 bool
 139 gss_eap_radius_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
 140                                              const gss_buffer_t buffer)
 141 {
 142     if (!gss_eap_attr_provider::initFromBuffer(ctx, buffer))
 143         return false;
 144
 145     return true;
 146 }
 147
 148 bool
 149 gss_eap_radius_attr_provider::init(void)
 150 {
 151     gss_eap_attr_ctx::registerProvider(ATTR_TYPE_RADIUS,
 152                                        "urn:ietf:params:gss-eap:radius-avp",
 153                                        gss_eap_radius_attr_provider::createAttrContext);
 154     return true;
 155 }
 156
 157 void
 158 gss_eap_radius_attr_provider::finalize(void)
 159 {
 160     gss_eap_attr_ctx::unregisterProvider(ATTR_TYPE_RADIUS);
 161 }
 162
 163 gss_eap_attr_provider *
 164 gss_eap_radius_attr_provider::createAttrContext(void)
 165 {
 166     return new gss_eap_radius_attr_provider;
 167 }
 168
 169 OM_uint32
 170 addAvpFromBuffer(OM_uint32 *minor,
 171                  rc_handle *rh,
 172                  VALUE_PAIR **vp,
 173                  int type,
 174                  gss_buffer_t buffer)
 175 {
 176     if (rc_avpair_add(rh, vp, type, buffer->value, buffer->length, 0) == NULL) {
 177         return GSS_S_FAILURE;
 178     }
 179
 180     return GSS_S_COMPLETE;
 181 }
 182
 183 OM_uint32
 184 getBufferFromAvps(OM_uint32 *minor,
 185                   VALUE_PAIR *vps,
 186                   int type,
 187                   gss_buffer_t buffer,
 188                   int concat)
 189 {
 190     VALUE_PAIR *vp;
 191     unsigned char *p;
 192
 193     buffer->length = 0;
 194     buffer->value = NULL;
 195
 196     vp = rc_avpair_get(vps, type, 0);
 197     if (vp == NULL)
 198         return GSS_S_UNAVAILABLE;
 199
 200     do {
 201         buffer->length += vp->lvalue;
 202     } while (concat && (vp = rc_avpair_get(vp->next, type, 0)) != NULL);
 203
 204     buffer->value = GSSEAP_MALLOC(buffer->length);
 205     if (buffer->value == NULL) {
 206         *minor = ENOMEM;
 207         return GSS_S_FAILURE;
 208     }
 209
 210     p = (unsigned char *)buffer->value;
 211
 212     for (vp = rc_avpair_get(vps, type, 0);
 213          concat && vp != NULL;
 214          vp = rc_avpair_get(vp->next, type, 0)) {
 215         memcpy(p, vp->strvalue, vp->lvalue);
 216         p += vp->lvalue;
 217     }
 218
 219     *minor = 0;
 220     return GSS_S_COMPLETE;
 221 }
 222
 223 OM_uint32
 224 gssEapRadiusAttrProviderInit(OM_uint32 *minor)
 225 {
 226     return gss_eap_radius_attr_provider::init()
 227         ? GSS_S_COMPLETE : GSS_S_FAILURE;
 228 }
 229
 230 OM_uint32
 231 gssEapRadiusAttrProviderFinalize(OM_uint32 *minor)
 232 {
 233     gss_eap_radius_attr_provider::finalize();
 234     return GSS_S_COMPLETE;
 235 }