1/* 2 * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#include "gsskrb5_locl.h" 35 36OM_uint32 GSSAPI_CALLCONV 37_gsskrb5_delete_sec_context(OM_uint32 * minor_status, 38 gss_ctx_id_t * context_handle, 39 gss_buffer_t output_token) 40{ 41 krb5_context context; 42 gsskrb5_ctx ctx; 43 44 GSSAPI_KRB5_INIT (&context); 45 46 *minor_status = 0; 47 48 if (output_token) { 49 output_token->length = 0; 50 output_token->value = NULL; 51 } 52 53 if (*context_handle == GSS_C_NO_CONTEXT) 54 return GSS_S_COMPLETE; 55 56 ctx = (gsskrb5_ctx) *context_handle; 57 *context_handle = GSS_C_NO_CONTEXT; 58 59 HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); 60 61 if (ctx->ccache) { 62 if (ctx->more_flags & CLOSE_CCACHE) 63 krb5_cc_close(context, ctx->ccache); 64 else if (ctx->more_flags & DESTROY_CCACHE) 65 krb5_cc_destroy(context, ctx->ccache); 66 } 67 68 krb5_auth_con_free (context, ctx->auth_context); 69 krb5_auth_con_free (context, ctx->deleg_auth_context); 70 if (ctx->kcred) 71 krb5_free_creds(context, ctx->kcred); 72 if(ctx->source) 73 krb5_free_principal (context, ctx->source); 74 if(ctx->target) 75 krb5_free_principal (context, ctx->target); 76 if (ctx->ticket) 77 krb5_free_ticket (context, ctx->ticket); 78 if(ctx->gk5c.order) 79 _gssapi_msg_order_destroy(&ctx->gk5c.order); 80 if (ctx->service_keyblock) 81 krb5_free_keyblock (context, ctx->service_keyblock); 82 krb5_data_free(&ctx->fwd_data); 83 if (ctx->gk5c.crypto) 84 krb5_crypto_destroy(context, ctx->gk5c.crypto); 85#ifdef PKINIT 86 if (ctx->cert) 87 hx509_cert_free(ctx->cert); 88 if (ctx->gic_opt) 89 krb5_get_init_creds_opt_free(context, ctx->gic_opt); 90#endif 91 if (ctx->asctx) 92 krb5_init_creds_free(context, ctx->asctx); 93 if (ctx->password) { 94 memset(ctx->password, 0, strlen(ctx->password)); 95 free(ctx->password); 96 } 97 if (ctx->cookie) 98 krb5_free_data(context, ctx->cookie); 99 if (ctx->iakerbrealm) 100 free(ctx->iakerbrealm); 101 if (ctx->messages) 102 krb5_storage_free(ctx->messages); 103 if (ctx->friendlyname.length) 104 krb5_data_free(&ctx->friendlyname); 105 if (ctx->lkdchostname.length) 106 krb5_data_free(&ctx->lkdchostname); 107 108 HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); 109 HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); 110 memset(ctx, 0, sizeof(*ctx)); 111 free (ctx); 112 return GSS_S_COMPLETE; 113} 114