several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509. - The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5. - Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf. - libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next. - Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well. - This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
435 lines
12 KiB
C
435 lines
12 KiB
C
/*
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* Copyright (c) 1997 - 2004 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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#undef __attribute__
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#define __attribute__(x)
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/**
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* @page krb5_init_creds_intro The initial credential handing functions
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* @section section_krb5_init_creds Initial credential
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*
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* Functions to get initial credentials: @ref krb5_credential .
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*/
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/**
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* Allocate a new krb5_get_init_creds_opt structure, free with
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* krb5_get_init_creds_opt_free().
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*
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* @ingroup krb5_credential
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_alloc(krb5_context context,
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krb5_get_init_creds_opt **opt)
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{
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krb5_get_init_creds_opt *o;
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*opt = NULL;
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o = calloc(1, sizeof(*o));
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if (o == NULL) {
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krb5_set_error_message(context, ENOMEM,
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N_("malloc: out of memory", ""));
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return ENOMEM;
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}
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o->opt_private = calloc(1, sizeof(*o->opt_private));
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if (o->opt_private == NULL) {
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krb5_set_error_message(context, ENOMEM,
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N_("malloc: out of memory", ""));
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free(o);
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return ENOMEM;
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}
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o->opt_private->refcount = 1;
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*opt = o;
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return 0;
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}
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/**
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* Free krb5_get_init_creds_opt structure.
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*
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* @ingroup krb5_credential
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*/
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_free(krb5_context context,
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krb5_get_init_creds_opt *opt)
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{
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if (opt == NULL || opt->opt_private == NULL)
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return;
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if (opt->opt_private->refcount < 1) /* abort ? */
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return;
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if (--opt->opt_private->refcount == 0) {
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_krb5_get_init_creds_opt_free_pkinit(opt);
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free(opt->opt_private);
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}
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memset(opt, 0, sizeof(*opt));
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free(opt);
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}
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static int
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get_config_time (krb5_context context,
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const char *realm,
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const char *name,
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int def)
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{
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int ret;
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ret = krb5_config_get_time (context, NULL,
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"realms",
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realm,
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name,
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NULL);
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if (ret >= 0)
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return ret;
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ret = krb5_config_get_time (context, NULL,
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"libdefaults",
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name,
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NULL);
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if (ret >= 0)
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return ret;
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return def;
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}
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static krb5_boolean
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get_config_bool (krb5_context context,
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krb5_boolean def_value,
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const char *realm,
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const char *name)
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{
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krb5_boolean b;
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b = krb5_config_get_bool_default(context, NULL, def_value,
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"realms", realm, name, NULL);
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if (b != def_value)
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return b;
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b = krb5_config_get_bool_default (context, NULL, def_value,
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"libdefaults", name, NULL);
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if (b != def_value)
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return b;
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return def_value;
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}
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/*
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* set all the values in `opt' to the appropriate values for
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* application `appname' (default to getprogname() if NULL), and realm
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* `realm'. First looks in [appdefaults] but falls back to
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* [realms] or [libdefaults] for some of the values.
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*/
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_default_flags(krb5_context context,
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const char *appname,
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krb5_const_realm realm,
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krb5_get_init_creds_opt *opt)
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{
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krb5_boolean b;
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time_t t;
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b = get_config_bool (context, KRB5_FORWARDABLE_DEFAULT,
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realm, "forwardable");
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krb5_appdefault_boolean(context, appname, realm, "forwardable", b, &b);
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krb5_get_init_creds_opt_set_forwardable(opt, b);
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b = get_config_bool (context, FALSE, realm, "proxiable");
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krb5_appdefault_boolean(context, appname, realm, "proxiable", b, &b);
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krb5_get_init_creds_opt_set_proxiable (opt, b);
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krb5_appdefault_time(context, appname, realm, "ticket_lifetime", 0, &t);
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if (t == 0)
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t = get_config_time (context, realm, "ticket_lifetime", 0);
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if(t != 0)
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krb5_get_init_creds_opt_set_tkt_life(opt, t);
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krb5_appdefault_time(context, appname, realm, "renew_lifetime", 0, &t);
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if (t == 0)
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t = get_config_time (context, realm, "renew_lifetime", 0);
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if(t != 0)
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krb5_get_init_creds_opt_set_renew_life(opt, t);
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krb5_appdefault_boolean(context, appname, realm, "no-addresses",
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KRB5_ADDRESSLESS_DEFAULT, &b);
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krb5_get_init_creds_opt_set_addressless (context, opt, b);
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#if 0
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krb5_appdefault_boolean(context, appname, realm, "anonymous", FALSE, &b);
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krb5_get_init_creds_opt_set_anonymous (opt, b);
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krb5_get_init_creds_opt_set_etype_list(opt, enctype,
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etype_str.num_strings);
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krb5_get_init_creds_opt_set_salt(krb5_get_init_creds_opt *opt,
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krb5_data *salt);
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krb5_get_init_creds_opt_set_preauth_list(krb5_get_init_creds_opt *opt,
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krb5_preauthtype *preauth_list,
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int preauth_list_length);
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#endif
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_tkt_life(krb5_get_init_creds_opt *opt,
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krb5_deltat tkt_life)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_TKT_LIFE;
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opt->tkt_life = tkt_life;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_renew_life(krb5_get_init_creds_opt *opt,
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krb5_deltat renew_life)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_RENEW_LIFE;
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opt->renew_life = renew_life;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_forwardable(krb5_get_init_creds_opt *opt,
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int forwardable)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_FORWARDABLE;
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opt->forwardable = forwardable;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_proxiable(krb5_get_init_creds_opt *opt,
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int proxiable)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_PROXIABLE;
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opt->proxiable = proxiable;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_etype_list(krb5_get_init_creds_opt *opt,
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krb5_enctype *etype_list,
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int etype_list_length)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_ETYPE_LIST;
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opt->etype_list = etype_list;
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opt->etype_list_length = etype_list_length;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_address_list(krb5_get_init_creds_opt *opt,
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krb5_addresses *addresses)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_ADDRESS_LIST;
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opt->address_list = addresses;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_preauth_list(krb5_get_init_creds_opt *opt,
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krb5_preauthtype *preauth_list,
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int preauth_list_length)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_PREAUTH_LIST;
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opt->preauth_list_length = preauth_list_length;
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opt->preauth_list = preauth_list;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_salt(krb5_get_init_creds_opt *opt,
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krb5_data *salt)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_SALT;
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opt->salt = salt;
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}
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_anonymous(krb5_get_init_creds_opt *opt,
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int anonymous)
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{
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opt->flags |= KRB5_GET_INIT_CREDS_OPT_ANONYMOUS;
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opt->anonymous = anonymous;
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}
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static krb5_error_code
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require_ext_opt(krb5_context context,
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krb5_get_init_creds_opt *opt,
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const char *type)
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{
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if (opt->opt_private == NULL) {
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krb5_set_error_message(context, EINVAL,
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N_("%s on non extendable opt", ""), type);
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return EINVAL;
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}
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_pa_password(krb5_context context,
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krb5_get_init_creds_opt *opt,
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const char *password,
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krb5_s2k_proc key_proc)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_pa_password");
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if (ret)
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return ret;
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opt->opt_private->password = password;
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opt->opt_private->key_proc = key_proc;
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_pac_request(krb5_context context,
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krb5_get_init_creds_opt *opt,
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krb5_boolean req_pac)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_pac_req");
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if (ret)
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return ret;
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opt->opt_private->req_pac = req_pac ?
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KRB5_INIT_CREDS_TRISTATE_TRUE :
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KRB5_INIT_CREDS_TRISTATE_FALSE;
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_addressless(krb5_context context,
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krb5_get_init_creds_opt *opt,
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krb5_boolean addressless)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_pac_req");
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if (ret)
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return ret;
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if (addressless)
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opt->opt_private->addressless = KRB5_INIT_CREDS_TRISTATE_TRUE;
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else
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opt->opt_private->addressless = KRB5_INIT_CREDS_TRISTATE_FALSE;
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_canonicalize(krb5_context context,
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krb5_get_init_creds_opt *opt,
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krb5_boolean req)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_canonicalize");
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if (ret)
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return ret;
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if (req)
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opt->opt_private->flags |= KRB5_INIT_CREDS_CANONICALIZE;
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else
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opt->opt_private->flags &= ~KRB5_INIT_CREDS_CANONICALIZE;
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_win2k(krb5_context context,
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krb5_get_init_creds_opt *opt,
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krb5_boolean req)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_win2k");
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if (ret)
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return ret;
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if (req) {
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opt->opt_private->flags |= KRB5_INIT_CREDS_NO_C_CANON_CHECK;
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opt->opt_private->flags |= KRB5_INIT_CREDS_NO_C_NO_EKU_CHECK;
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} else {
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opt->opt_private->flags &= ~KRB5_INIT_CREDS_NO_C_CANON_CHECK;
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opt->opt_private->flags &= ~KRB5_INIT_CREDS_NO_C_NO_EKU_CHECK;
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}
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return 0;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_set_process_last_req(krb5_context context,
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krb5_get_init_creds_opt *opt,
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krb5_gic_process_last_req func,
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void *ctx)
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{
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krb5_error_code ret;
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ret = require_ext_opt(context, opt, "init_creds_opt_set_win2k");
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if (ret)
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return ret;
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opt->opt_private->lr.func = func;
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opt->opt_private->lr.ctx = ctx;
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return 0;
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}
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#ifndef HEIMDAL_SMALLER
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/**
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* Deprecated: use krb5_get_init_creds_opt_alloc().
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*
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* The reason krb5_get_init_creds_opt_init() is deprecated is that
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* krb5_get_init_creds_opt is a static structure and for ABI reason it
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* can't grow, ie can't add new functionality.
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*
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* @ingroup krb5_deprecated
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*/
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KRB5_LIB_FUNCTION void KRB5_LIB_CALL
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krb5_get_init_creds_opt_init(krb5_get_init_creds_opt *opt)
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KRB5_DEPRECATED_FUNCTION("Use X instead")
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{
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memset (opt, 0, sizeof(*opt));
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}
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/**
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* Deprecated: use the new krb5_init_creds_init() and
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* krb5_init_creds_get_error().
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*
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* @ingroup krb5_deprecated
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_get_init_creds_opt_get_error(krb5_context context,
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krb5_get_init_creds_opt *opt,
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KRB_ERROR **error)
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KRB5_DEPRECATED_FUNCTION("Use X instead")
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{
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*error = calloc(1, sizeof(**error));
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if (*error == NULL) {
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krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
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return ENOMEM;
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}
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return 0;
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}
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#endif /* HEIMDAL_SMALLER */
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