1 /* $NetBSD: gss_import_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_import_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_import_sec_context(OM_uint32 *minor_status, 35 const gss_buffer_t interprocess_token, 36 gss_ctx_id_t *context_handle) 37 { 38 OM_uint32 major_status; 39 gssapi_mech_interface m; 40 struct _gss_context *ctx; 41 gss_OID_desc mech_oid; 42 gss_buffer_desc buf; 43 unsigned char *p; 44 size_t len; 45 46 *minor_status = 0; 47 *context_handle = GSS_C_NO_CONTEXT; 48 49 /* 50 * We added an oid to the front of the token in 51 * gss_export_sec_context. 52 */ 53 p = interprocess_token->value; 54 len = interprocess_token->length; 55 if (len < 2) 56 return (GSS_S_DEFECTIVE_TOKEN); 57 mech_oid.length = (p[0] << 8) | p[1]; 58 if (len < mech_oid.length + 2) 59 return (GSS_S_DEFECTIVE_TOKEN); 60 mech_oid.elements = p + 2; 61 buf.length = len - 2 - mech_oid.length; 62 buf.value = p + 2 + mech_oid.length; 63 64 m = __gss_get_mechanism(&mech_oid); 65 if (!m) 66 return (GSS_S_DEFECTIVE_TOKEN); 67 68 ctx = malloc(sizeof(struct _gss_context)); 69 if (!ctx) { 70 *minor_status = ENOMEM; 71 return (GSS_S_FAILURE); 72 } 73 ctx->gc_mech = m; 74 major_status = m->gm_import_sec_context(minor_status, 75 &buf, &ctx->gc_ctx); 76 if (major_status != GSS_S_COMPLETE) { 77 _gss_mg_error(m, major_status, *minor_status); 78 free(ctx); 79 } else { 80 *context_handle = (gss_ctx_id_t) ctx; 81 } 82 83 return (major_status); 84 } 85