1 /* $NetBSD: gss_export_sec_context.c,v 1.1.1.1 2011/04/13 18:14:46 elric Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 Doug Rabson 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/lib/libgssapi/gss_export_sec_context.c,v 1.1 2005/12/29 14:40:20 dfr Exp $ 29 */ 30 31 #include "mech_locl.h" 32 33 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL 34 gss_export_sec_context(OM_uint32 *minor_status, 35 gss_ctx_id_t *context_handle, 36 gss_buffer_t interprocess_token) 37 { 38 OM_uint32 major_status; 39 struct _gss_context *ctx = (struct _gss_context *) *context_handle; 40 gssapi_mech_interface m = ctx->gc_mech; 41 gss_buffer_desc buf; 42 43 _mg_buffer_zero(interprocess_token); 44 45 major_status = m->gm_export_sec_context(minor_status, 46 &ctx->gc_ctx, &buf); 47 48 if (major_status == GSS_S_COMPLETE) { 49 unsigned char *p; 50 51 free(ctx); 52 *context_handle = GSS_C_NO_CONTEXT; 53 interprocess_token->length = buf.length 54 + 2 + m->gm_mech_oid.length; 55 interprocess_token->value = malloc(interprocess_token->length); 56 if (!interprocess_token->value) { 57 /* 58 * We are in trouble here - the context is 59 * already gone. This is allowed as long as we 60 * set the caller's context_handle to 61 * GSS_C_NO_CONTEXT, which we did above. 62 * Return GSS_S_FAILURE. 63 */ 64 _mg_buffer_zero(interprocess_token); 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 } else { 75 _gss_mg_error(m, major_status, *minor_status); 76 } 77 78 return (major_status); 79 } 80