1 /*- 2 * Copyright (c) 2005 Doug Rabson 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <gssapi/gssapi.h> 30 #include <stdlib.h> 31 #include <errno.h> 32 33 #include "mech_switch.h" 34 #include "context.h" 35 36 OM_uint32 37 gss_export_sec_context(OM_uint32 *minor_status, 38 gss_ctx_id_t *context_handle, 39 gss_buffer_t interprocess_token) 40 { 41 OM_uint32 major_status; 42 struct _gss_context *ctx = (struct _gss_context *) *context_handle; 43 struct _gss_mech_switch *m = ctx->gc_mech; 44 gss_buffer_desc buf; 45 46 major_status = m->gm_export_sec_context(minor_status, 47 &ctx->gc_ctx, &buf); 48 49 if (major_status == GSS_S_COMPLETE) { 50 unsigned char *p; 51 52 free(ctx); 53 *context_handle = GSS_C_NO_CONTEXT; 54 interprocess_token->length = buf.length 55 + 2 + m->gm_mech_oid.length; 56 interprocess_token->value = malloc(interprocess_token->length); 57 if (!interprocess_token->value) { 58 /* 59 * We are in trouble here - the context is 60 * already gone. This is allowed as long as we 61 * set the caller's context_handle to 62 * GSS_C_NO_CONTEXT, which we did above. 63 * Return GSS_S_FAILURE. 64 */ 65 *minor_status = ENOMEM; 66 return (GSS_S_FAILURE); 67 } 68 p = interprocess_token->value; 69 p[0] = m->gm_mech_oid.length >> 8; 70 p[1] = m->gm_mech_oid.length; 71 memcpy(p + 2, m->gm_mech_oid.elements, m->gm_mech_oid.length); 72 memcpy(p + 2 + m->gm_mech_oid.length, buf.value, buf.length); 73 gss_release_buffer(minor_status, &buf); 74 } 75 76 return (major_status); 77 } 78