1 /* $NetBSD: cred_stubs.c,v 1.1.1.2 2014/04/24 12:45:29 pettai Exp $ */ 2 3 /* 4 * Copyright (c) 2004, PADL Software Pty Ltd. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * 3. Neither the name of PADL Software nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include "spnego_locl.h" 36 37 OM_uint32 GSSAPI_CALLCONV 38 _gss_spnego_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle) 39 { 40 OM_uint32 ret; 41 42 *minor_status = 0; 43 44 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL) 45 return GSS_S_COMPLETE; 46 47 ret = gss_release_cred(minor_status, cred_handle); 48 49 *cred_handle = GSS_C_NO_CREDENTIAL; 50 51 return ret; 52 } 53 54 /* 55 * For now, just a simple wrapper that avoids recursion. When 56 * we support gss_{get,set}_neg_mechs() we will need to expose 57 * more functionality. 58 */ 59 OM_uint32 GSSAPI_CALLCONV _gss_spnego_acquire_cred 60 (OM_uint32 *minor_status, 61 const gss_name_t desired_name, 62 OM_uint32 time_req, 63 const gss_OID_set desired_mechs, 64 gss_cred_usage_t cred_usage, 65 gss_cred_id_t * output_cred_handle, 66 gss_OID_set * actual_mechs, 67 OM_uint32 * time_rec 68 ) 69 { 70 const spnego_name dname = (const spnego_name)desired_name; 71 gss_name_t name = GSS_C_NO_NAME; 72 OM_uint32 ret, tmp; 73 gss_OID_set_desc actual_desired_mechs; 74 gss_OID_set mechs; 75 size_t i, j; 76 77 *output_cred_handle = GSS_C_NO_CREDENTIAL; 78 79 if (dname) { 80 ret = gss_import_name(minor_status, &dname->value, &dname->type, &name); 81 if (ret) { 82 return ret; 83 } 84 } 85 86 ret = gss_indicate_mechs(minor_status, &mechs); 87 if (ret != GSS_S_COMPLETE) { 88 gss_release_name(minor_status, &name); 89 return ret; 90 } 91 92 /* Remove ourselves from this list */ 93 actual_desired_mechs.count = mechs->count; 94 actual_desired_mechs.elements = malloc(actual_desired_mechs.count * 95 sizeof(gss_OID_desc)); 96 if (actual_desired_mechs.elements == NULL) { 97 *minor_status = ENOMEM; 98 ret = GSS_S_FAILURE; 99 goto out; 100 } 101 102 for (i = 0, j = 0; i < mechs->count; i++) { 103 if (gss_oid_equal(&mechs->elements[i], GSS_SPNEGO_MECHANISM)) 104 continue; 105 106 actual_desired_mechs.elements[j] = mechs->elements[i]; 107 j++; 108 } 109 actual_desired_mechs.count = j; 110 111 ret = gss_acquire_cred(minor_status, name, 112 time_req, &actual_desired_mechs, 113 cred_usage, 114 output_cred_handle, 115 actual_mechs, time_rec); 116 if (ret != GSS_S_COMPLETE) 117 goto out; 118 119 out: 120 gss_release_name(minor_status, &name); 121 gss_release_oid_set(&tmp, &mechs); 122 if (actual_desired_mechs.elements != NULL) { 123 free(actual_desired_mechs.elements); 124 } 125 if (ret != GSS_S_COMPLETE) { 126 _gss_spnego_release_cred(&tmp, output_cred_handle); 127 } 128 129 return ret; 130 } 131 132 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred 133 (OM_uint32 * minor_status, 134 const gss_cred_id_t cred_handle, 135 gss_name_t * name, 136 OM_uint32 * lifetime, 137 gss_cred_usage_t * cred_usage, 138 gss_OID_set * mechanisms 139 ) 140 { 141 spnego_name sname = NULL; 142 OM_uint32 ret; 143 144 if (cred_handle == GSS_C_NO_CREDENTIAL) { 145 *minor_status = 0; 146 return GSS_S_NO_CRED; 147 } 148 149 if (name) { 150 sname = calloc(1, sizeof(*sname)); 151 if (sname == NULL) { 152 *minor_status = ENOMEM; 153 return GSS_S_FAILURE; 154 } 155 } 156 157 ret = gss_inquire_cred(minor_status, 158 cred_handle, 159 sname ? &sname->mech : NULL, 160 lifetime, 161 cred_usage, 162 mechanisms); 163 if (ret) { 164 if (sname) 165 free(sname); 166 return ret; 167 } 168 if (name) 169 *name = (gss_name_t)sname; 170 171 return ret; 172 } 173 174 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_mech ( 175 OM_uint32 * minor_status, 176 const gss_cred_id_t cred_handle, 177 const gss_OID mech_type, 178 gss_name_t * name, 179 OM_uint32 * initiator_lifetime, 180 OM_uint32 * acceptor_lifetime, 181 gss_cred_usage_t * cred_usage 182 ) 183 { 184 spnego_name sname = NULL; 185 OM_uint32 ret; 186 187 if (cred_handle == GSS_C_NO_CREDENTIAL) { 188 *minor_status = 0; 189 return GSS_S_NO_CRED; 190 } 191 192 if (name) { 193 sname = calloc(1, sizeof(*sname)); 194 if (sname == NULL) { 195 *minor_status = ENOMEM; 196 return GSS_S_FAILURE; 197 } 198 } 199 200 ret = gss_inquire_cred_by_mech(minor_status, 201 cred_handle, 202 mech_type, 203 sname ? &sname->mech : NULL, 204 initiator_lifetime, 205 acceptor_lifetime, 206 cred_usage); 207 208 if (ret) { 209 if (sname) 210 free(sname); 211 return ret; 212 } 213 if (name) 214 *name = (gss_name_t)sname; 215 216 return GSS_S_COMPLETE; 217 } 218 219 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_oid 220 (OM_uint32 * minor_status, 221 const gss_cred_id_t cred_handle, 222 const gss_OID desired_object, 223 gss_buffer_set_t *data_set) 224 { 225 OM_uint32 ret; 226 227 if (cred_handle == GSS_C_NO_CREDENTIAL) { 228 *minor_status = 0; 229 return GSS_S_NO_CRED; 230 } 231 232 ret = gss_inquire_cred_by_oid(minor_status, 233 cred_handle, 234 desired_object, 235 data_set); 236 237 return ret; 238 } 239 240 OM_uint32 GSSAPI_CALLCONV 241 _gss_spnego_set_cred_option (OM_uint32 *minor_status, 242 gss_cred_id_t *cred_handle, 243 const gss_OID object, 244 const gss_buffer_t value) 245 { 246 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL) { 247 *minor_status = 0; 248 return GSS_S_NO_CRED; 249 } 250 251 return gss_set_cred_option(minor_status, 252 cred_handle, 253 object, 254 value); 255 } 256 257 258 OM_uint32 GSSAPI_CALLCONV 259 _gss_spnego_export_cred (OM_uint32 *minor_status, 260 gss_cred_id_t cred_handle, 261 gss_buffer_t value) 262 { 263 return gss_export_cred(minor_status, cred_handle, value); 264 } 265 266 OM_uint32 GSSAPI_CALLCONV 267 _gss_spnego_import_cred (OM_uint32 *minor_status, 268 gss_buffer_t value, 269 gss_cred_id_t *cred_handle) 270 { 271 return gss_import_cred(minor_status, value, cred_handle); 272 } 273 274