1 /* 2 * Copyright (c) 2004, PADL Software Pty Ltd. 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 PADL Software 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 PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND 21 * 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 PADL SOFTWARE 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 "spnego_locl.h" 34 35 OM_uint32 GSSAPI_CALLCONV 36 _gss_spnego_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle) 37 { 38 OM_uint32 ret; 39 40 *minor_status = 0; 41 42 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL) 43 return GSS_S_COMPLETE; 44 45 ret = gss_release_cred(minor_status, cred_handle); 46 47 *cred_handle = GSS_C_NO_CREDENTIAL; 48 49 return ret; 50 } 51 52 /* 53 * For now, just a simple wrapper that avoids recursion. When 54 * we support gss_{get,set}_neg_mechs() we will need to expose 55 * more functionality. 56 */ 57 OM_uint32 GSSAPI_CALLCONV _gss_spnego_acquire_cred 58 (OM_uint32 *minor_status, 59 const gss_name_t desired_name, 60 OM_uint32 time_req, 61 const gss_OID_set desired_mechs, 62 gss_cred_usage_t cred_usage, 63 gss_cred_id_t * output_cred_handle, 64 gss_OID_set * actual_mechs, 65 OM_uint32 * time_rec 66 ) 67 { 68 const spnego_name dname = (const spnego_name)desired_name; 69 gss_name_t name = GSS_C_NO_NAME; 70 OM_uint32 ret, tmp; 71 gss_OID_set_desc actual_desired_mechs; 72 gss_OID_set mechs; 73 size_t i, j; 74 75 *output_cred_handle = GSS_C_NO_CREDENTIAL; 76 77 if (dname) { 78 ret = gss_import_name(minor_status, &dname->value, &dname->type, &name); 79 if (ret) { 80 return ret; 81 } 82 } 83 84 ret = gss_indicate_mechs(minor_status, &mechs); 85 if (ret != GSS_S_COMPLETE) { 86 gss_release_name(minor_status, &name); 87 return ret; 88 } 89 90 /* Remove ourselves from this list */ 91 actual_desired_mechs.count = mechs->count; 92 actual_desired_mechs.elements = malloc(actual_desired_mechs.count * 93 sizeof(gss_OID_desc)); 94 if (actual_desired_mechs.elements == NULL) { 95 *minor_status = ENOMEM; 96 ret = GSS_S_FAILURE; 97 goto out; 98 } 99 100 for (i = 0, j = 0; i < mechs->count; i++) { 101 if (gss_oid_equal(&mechs->elements[i], GSS_SPNEGO_MECHANISM)) 102 continue; 103 104 actual_desired_mechs.elements[j] = mechs->elements[i]; 105 j++; 106 } 107 actual_desired_mechs.count = j; 108 109 ret = gss_acquire_cred(minor_status, name, 110 time_req, &actual_desired_mechs, 111 cred_usage, 112 output_cred_handle, 113 actual_mechs, time_rec); 114 if (ret != GSS_S_COMPLETE) 115 goto out; 116 117 out: 118 gss_release_name(minor_status, &name); 119 gss_release_oid_set(&tmp, &mechs); 120 if (actual_desired_mechs.elements != NULL) { 121 free(actual_desired_mechs.elements); 122 } 123 if (ret != GSS_S_COMPLETE) { 124 _gss_spnego_release_cred(&tmp, output_cred_handle); 125 } 126 127 return ret; 128 } 129 130 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred 131 (OM_uint32 * minor_status, 132 const gss_cred_id_t cred_handle, 133 gss_name_t * name, 134 OM_uint32 * lifetime, 135 gss_cred_usage_t * cred_usage, 136 gss_OID_set * mechanisms 137 ) 138 { 139 spnego_name sname = NULL; 140 OM_uint32 ret; 141 142 if (cred_handle == GSS_C_NO_CREDENTIAL) { 143 *minor_status = 0; 144 return GSS_S_NO_CRED; 145 } 146 147 if (name) { 148 sname = calloc(1, sizeof(*sname)); 149 if (sname == NULL) { 150 *minor_status = ENOMEM; 151 return GSS_S_FAILURE; 152 } 153 } 154 155 ret = gss_inquire_cred(minor_status, 156 cred_handle, 157 sname ? &sname->mech : NULL, 158 lifetime, 159 cred_usage, 160 mechanisms); 161 if (ret) { 162 if (sname) 163 free(sname); 164 return ret; 165 } 166 if (name) 167 *name = (gss_name_t)sname; 168 169 return ret; 170 } 171 172 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_mech ( 173 OM_uint32 * minor_status, 174 const gss_cred_id_t cred_handle, 175 const gss_OID mech_type, 176 gss_name_t * name, 177 OM_uint32 * initiator_lifetime, 178 OM_uint32 * acceptor_lifetime, 179 gss_cred_usage_t * cred_usage 180 ) 181 { 182 spnego_name sname = NULL; 183 OM_uint32 ret; 184 185 if (cred_handle == GSS_C_NO_CREDENTIAL) { 186 *minor_status = 0; 187 return GSS_S_NO_CRED; 188 } 189 190 if (name) { 191 sname = calloc(1, sizeof(*sname)); 192 if (sname == NULL) { 193 *minor_status = ENOMEM; 194 return GSS_S_FAILURE; 195 } 196 } 197 198 ret = gss_inquire_cred_by_mech(minor_status, 199 cred_handle, 200 mech_type, 201 sname ? &sname->mech : NULL, 202 initiator_lifetime, 203 acceptor_lifetime, 204 cred_usage); 205 206 if (ret) { 207 if (sname) 208 free(sname); 209 return ret; 210 } 211 if (name) 212 *name = (gss_name_t)sname; 213 214 return GSS_S_COMPLETE; 215 } 216 217 OM_uint32 GSSAPI_CALLCONV _gss_spnego_inquire_cred_by_oid 218 (OM_uint32 * minor_status, 219 const gss_cred_id_t cred_handle, 220 const gss_OID desired_object, 221 gss_buffer_set_t *data_set) 222 { 223 OM_uint32 ret; 224 225 if (cred_handle == GSS_C_NO_CREDENTIAL) { 226 *minor_status = 0; 227 return GSS_S_NO_CRED; 228 } 229 230 ret = gss_inquire_cred_by_oid(minor_status, 231 cred_handle, 232 desired_object, 233 data_set); 234 235 return ret; 236 } 237 238 OM_uint32 GSSAPI_CALLCONV 239 _gss_spnego_set_cred_option (OM_uint32 *minor_status, 240 gss_cred_id_t *cred_handle, 241 const gss_OID object, 242 const gss_buffer_t value) 243 { 244 if (cred_handle == NULL || *cred_handle == GSS_C_NO_CREDENTIAL) { 245 *minor_status = 0; 246 return GSS_S_NO_CRED; 247 } 248 249 return gss_set_cred_option(minor_status, 250 cred_handle, 251 object, 252 value); 253 } 254 255 #if 0 256 257 OM_uint32 GSSAPI_CALLCONV 258 _gss_spnego_export_cred (OM_uint32 *minor_status, 259 gss_cred_id_t cred_handle, 260 gss_buffer_t value) 261 { 262 return gss_export_cred(minor_status, cred_handle, value); 263 } 264 265 OM_uint32 GSSAPI_CALLCONV 266 _gss_spnego_import_cred (OM_uint32 *minor_status, 267 gss_buffer_t value, 268 gss_cred_id_t *cred_handle) 269 { 270 return gss_import_cred(minor_status, value, cred_handle); 271 } 272 273 #endif 274