1226031Sstas/*- 2226031Sstas * Copyright (c) 2005 Doug Rabson 3226031Sstas * All rights reserved. 4226031Sstas * 5226031Sstas * Redistribution and use in source and binary forms, with or without 6226031Sstas * modification, are permitted provided that the following conditions 7226031Sstas * are met: 8226031Sstas * 1. Redistributions of source code must retain the above copyright 9226031Sstas * notice, this list of conditions and the following disclaimer. 10226031Sstas * 2. Redistributions in binary form must reproduce the above copyright 11226031Sstas * notice, this list of conditions and the following disclaimer in the 12226031Sstas * documentation and/or other materials provided with the distribution. 13226031Sstas * 14226031Sstas * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15226031Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16226031Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17226031Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18226031Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19226031Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20226031Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21226031Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22226031Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23226031Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24226031Sstas * SUCH DAMAGE. 25226031Sstas * 26226031Sstas * $FreeBSD: src/lib/libgssapi/gss_import_sec_context.c,v 1.1 2005/12/29 14:40:20 dfr Exp $ 27226031Sstas */ 28226031Sstas 29226031Sstas#include "mech_locl.h" 30226031Sstas 31226031SstasGSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL 32226031Sstasgss_import_sec_context(OM_uint32 *minor_status, 33226031Sstas const gss_buffer_t interprocess_token, 34226031Sstas gss_ctx_id_t *context_handle) 35226031Sstas{ 36226031Sstas OM_uint32 major_status; 37226031Sstas gssapi_mech_interface m; 38226031Sstas struct _gss_context *ctx; 39226031Sstas gss_OID_desc mech_oid; 40226031Sstas gss_buffer_desc buf; 41226031Sstas unsigned char *p; 42226031Sstas size_t len; 43226031Sstas 44226031Sstas *minor_status = 0; 45226031Sstas *context_handle = GSS_C_NO_CONTEXT; 46226031Sstas 47226031Sstas /* 48226031Sstas * We added an oid to the front of the token in 49226031Sstas * gss_export_sec_context. 50226031Sstas */ 51226031Sstas p = interprocess_token->value; 52226031Sstas len = interprocess_token->length; 53226031Sstas if (len < 2) 54226031Sstas return (GSS_S_DEFECTIVE_TOKEN); 55226031Sstas mech_oid.length = (p[0] << 8) | p[1]; 56226031Sstas if (len < mech_oid.length + 2) 57226031Sstas return (GSS_S_DEFECTIVE_TOKEN); 58226031Sstas mech_oid.elements = p + 2; 59226031Sstas buf.length = len - 2 - mech_oid.length; 60226031Sstas buf.value = p + 2 + mech_oid.length; 61226031Sstas 62226031Sstas m = __gss_get_mechanism(&mech_oid); 63226031Sstas if (!m) 64226031Sstas return (GSS_S_DEFECTIVE_TOKEN); 65226031Sstas 66226031Sstas ctx = malloc(sizeof(struct _gss_context)); 67226031Sstas if (!ctx) { 68226031Sstas *minor_status = ENOMEM; 69226031Sstas return (GSS_S_FAILURE); 70226031Sstas } 71226031Sstas ctx->gc_mech = m; 72226031Sstas major_status = m->gm_import_sec_context(minor_status, 73226031Sstas &buf, &ctx->gc_ctx); 74226031Sstas if (major_status != GSS_S_COMPLETE) { 75226031Sstas _gss_mg_error(m, major_status, *minor_status); 76226031Sstas free(ctx); 77226031Sstas } else { 78226031Sstas *context_handle = (gss_ctx_id_t) ctx; 79226031Sstas } 80226031Sstas 81226031Sstas return (major_status); 82226031Sstas} 83