compat.c revision 178826
1177633Sdfr/* 2177633Sdfr * Copyright (c) 2003 - 2005 Kungliga Tekniska H�gskolan 3177633Sdfr * (Royal Institute of Technology, Stockholm, Sweden). 4261046Smav * All rights reserved. 5261046Smav * 6261046Smav * Redistribution and use in source and binary forms, with or without 7261046Smav * modification, are permitted provided that the following conditions 8261046Smav * are met: 9261046Smav * 10261046Smav * 1. Redistributions of source code must retain the above copyright 11261046Smav * notice, this list of conditions and the following disclaimer. 12261046Smav * 13261046Smav * 2. Redistributions in binary form must reproduce the above copyright 14261046Smav * notice, this list of conditions and the following disclaimer in the 15261046Smav * documentation and/or other materials provided with the distribution. 16261046Smav * 17261046Smav * 3. Neither the name of the Institute nor the names of its contributors 18177633Sdfr * may be used to endorse or promote products derived from this software 19261046Smav * without specific prior written permission. 20261046Smav * 21261046Smav * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22261046Smav * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23261046Smav * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24261046Smav * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25261046Smav * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26261046Smav * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27261046Smav * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28261046Smav * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29261046Smav * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30177633Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31177633Sdfr * SUCH DAMAGE. 32177633Sdfr */ 33177633Sdfr 34177633Sdfr#include "krb5/gsskrb5_locl.h" 35177633Sdfr 36177633SdfrRCSID("$Id: compat.c 19031 2006-11-13 18:02:57Z lha $"); 37177633Sdfr 38177633Sdfr 39177633Sdfrstatic krb5_error_code 40177633Sdfrcheck_compat(OM_uint32 *minor_status, 41177633Sdfr krb5_context context, krb5_const_principal name, 42177633Sdfr const char *option, krb5_boolean *compat, 43177633Sdfr krb5_boolean match_val) 44177633Sdfr{ 45177633Sdfr krb5_error_code ret = 0; 46177633Sdfr char **p, **q; 47177633Sdfr krb5_principal match; 48177633Sdfr 49177633Sdfr 50177633Sdfr p = krb5_config_get_strings(context, NULL, "gssapi", 51177633Sdfr option, NULL); 52177633Sdfr if(p == NULL) 53177633Sdfr return 0; 54177633Sdfr 55177633Sdfr match = NULL; 56177633Sdfr for(q = p; *q; q++) { 57177633Sdfr ret = krb5_parse_name(context, *q, &match); 58177633Sdfr if (ret) 59177633Sdfr break; 60177633Sdfr 61177633Sdfr if (krb5_principal_match(context, name, match)) { 62177633Sdfr *compat = match_val; 63177633Sdfr break; 64177633Sdfr } 65177633Sdfr 66177633Sdfr krb5_free_principal(context, match); 67177633Sdfr match = NULL; 68177633Sdfr } 69177633Sdfr if (match) 70177633Sdfr krb5_free_principal(context, match); 71177633Sdfr krb5_config_free_strings(p); 72177633Sdfr 73177633Sdfr if (ret) { 74177633Sdfr if (minor_status) 75177633Sdfr *minor_status = ret; 76177633Sdfr return GSS_S_FAILURE; 77177633Sdfr } 78177633Sdfr 79177633Sdfr return 0; 80177633Sdfr} 81177633Sdfr 82177633Sdfr/* 83177633Sdfr * ctx->ctx_id_mutex is assumed to be locked 84177633Sdfr */ 85177633Sdfr 86177633SdfrOM_uint32 87177633Sdfr_gss_DES3_get_mic_compat(OM_uint32 *minor_status, 88177633Sdfr gsskrb5_ctx ctx, 89 krb5_context context) 90{ 91 krb5_boolean use_compat = FALSE; 92 OM_uint32 ret; 93 94 if ((ctx->more_flags & COMPAT_OLD_DES3_SELECTED) == 0) { 95 ret = check_compat(minor_status, context, ctx->target, 96 "broken_des3_mic", &use_compat, TRUE); 97 if (ret) 98 return ret; 99 ret = check_compat(minor_status, context, ctx->target, 100 "correct_des3_mic", &use_compat, FALSE); 101 if (ret) 102 return ret; 103 104 if (use_compat) 105 ctx->more_flags |= COMPAT_OLD_DES3; 106 ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; 107 } 108 return 0; 109} 110 111#if 0 112OM_uint32 113gss_krb5_compat_des3_mic(OM_uint32 *minor_status, gss_ctx_id_t ctx, int on) 114{ 115 *minor_status = 0; 116 117 HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); 118 if (on) { 119 ctx->more_flags |= COMPAT_OLD_DES3; 120 } else { 121 ctx->more_flags &= ~COMPAT_OLD_DES3; 122 } 123 ctx->more_flags |= COMPAT_OLD_DES3_SELECTED; 124 HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); 125 126 return 0; 127} 128#endif 129