1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * glue routine gss_export_sec_context 31 */ 32 33 #include <mechglueP.h> 34 #include <stdio.h> 35 #include <errno.h> 36 #include <stdlib.h> 37 #include <string.h> 38 39 OM_uint32 40 gss_import_sec_context(minor_status, 41 interprocess_token, 42 context_handle) 43 44 OM_uint32 * minor_status; 45 const gss_buffer_t interprocess_token; 46 gss_ctx_id_t *context_handle; 47 48 { 49 OM_uint32 length = 0; 50 OM_uint32 status; 51 char *p; 52 gss_union_ctx_id_t ctx; 53 gss_buffer_desc token; 54 gss_mechanism mech; 55 56 if (minor_status == NULL) 57 return (GSS_S_CALL_INACCESSIBLE_WRITE); 58 *minor_status = 0; 59 60 if (context_handle == NULL) 61 return (GSS_S_CALL_INACCESSIBLE_WRITE | GSS_S_NO_CONTEXT); 62 *context_handle = GSS_C_NO_CONTEXT; 63 64 if (GSS_EMPTY_BUFFER(interprocess_token)) 65 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_DEFECTIVE_TOKEN); 66 67 status = GSS_S_FAILURE; 68 69 ctx = (gss_union_ctx_id_t)malloc(sizeof (gss_union_ctx_id_desc)); 70 if (!ctx) 71 return (GSS_S_FAILURE); 72 73 ctx->mech_type = (gss_OID) malloc(sizeof (gss_OID_desc)); 74 if (!ctx->mech_type) { 75 free(ctx); 76 return (GSS_S_FAILURE); 77 } 78 79 if (interprocess_token->length >= sizeof (OM_uint32)) { 80 p = interprocess_token->value; 81 length = (OM_uint32)*p++; 82 length = (OM_uint32)(length << 8) + *p++; 83 length = (OM_uint32)(length << 8) + *p++; 84 length = (OM_uint32)(length << 8) + *p++; 85 } 86 87 if (length == 0 || 88 length > (interprocess_token->length - sizeof (OM_uint32))) { 89 free(ctx); 90 return (GSS_S_CALL_BAD_STRUCTURE | GSS_S_DEFECTIVE_TOKEN); 91 } 92 93 ctx->mech_type->length = length; 94 ctx->mech_type->elements = malloc(length); 95 if (!ctx->mech_type->elements) { 96 goto error_out; 97 } 98 (void) memcpy(ctx->mech_type->elements, p, length); 99 p += length; 100 101 token.length = interprocess_token->length - sizeof (OM_uint32) - length; 102 token.value = p; 103 104 /* 105 * select the approprate underlying mechanism routine and 106 * call it. 107 */ 108 109 mech = __gss_get_mechanism(ctx->mech_type); 110 if (!mech) { 111 status = GSS_S_BAD_MECH; 112 goto error_out; 113 } 114 if (!mech->gss_import_sec_context) { 115 status = GSS_S_UNAVAILABLE; 116 goto error_out; 117 } 118 119 status = mech->gss_import_sec_context(mech->context, minor_status, 120 &token, &ctx->internal_ctx_id); 121 122 if (status == GSS_S_COMPLETE) { 123 *context_handle = (gss_ctx_id_t)ctx; 124 return (GSS_S_COMPLETE); 125 } 126 127 error_out: 128 if (ctx) { 129 if (ctx->mech_type) { 130 if (ctx->mech_type->elements) 131 free(ctx->mech_type->elements); 132 free(ctx->mech_type); 133 } 134 free(ctx); 135 } 136 return (status); 137 } 138