1 /*- 2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 3 * Authors: Doug Rabson <dfr@rabson.org> 4 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 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 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/kobj.h> 34 #include <sys/lock.h> 35 #include <sys/malloc.h> 36 #include <sys/mutex.h> 37 38 #include <kgssapi/gssapi.h> 39 #include <kgssapi/gssapi_impl.h> 40 41 #include "gssd.h" 42 43 OM_uint32 44 gss_delete_sec_context(OM_uint32 *minor_status, gss_ctx_id_t *context_handle, 45 gss_buffer_t output_token) 46 { 47 struct delete_sec_context_res res; 48 struct delete_sec_context_args args; 49 enum clnt_stat stat; 50 gss_ctx_id_t ctx; 51 CLIENT *cl; 52 53 *minor_status = 0; 54 55 if (!kgss_gssd_handle) 56 return (GSS_S_FAILURE); 57 58 if (*context_handle) { 59 ctx = *context_handle; 60 61 /* 62 * If we are past the context establishment phase, let 63 * the in-kernel code do the delete, otherwise 64 * userland needs to deal with it. 65 */ 66 if (ctx->handle) { 67 args.ctx = ctx->handle; 68 cl = kgss_gssd_client(); 69 if (cl == NULL) 70 return (GSS_S_FAILURE); 71 72 bzero(&res, sizeof(res)); 73 stat = gssd_delete_sec_context_1(&args, &res, cl); 74 CLNT_RELEASE(cl); 75 if (stat != RPC_SUCCESS) { 76 *minor_status = stat; 77 return (GSS_S_FAILURE); 78 } 79 80 if (output_token) 81 kgss_copy_buffer(&res.output_token, 82 output_token); 83 xdr_free((xdrproc_t) xdr_delete_sec_context_res, &res); 84 85 kgss_delete_context(ctx, NULL); 86 } else { 87 kgss_delete_context(ctx, output_token); 88 } 89 *context_handle = NULL; 90 } else { 91 if (output_token) { 92 output_token->length = 0; 93 output_token->value = NULL; 94 } 95 } 96 97 return (GSS_S_COMPLETE); 98 } 99