ae77177087
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.
348 lines
9.0 KiB
C
348 lines
9.0 KiB
C
/*
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* Copyright (c) 1997 - 2001 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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* 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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#include <err.h>
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static krb5_error_code _warnerr(krb5_context context, int do_errtext,
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krb5_error_code code, int level, const char *fmt, va_list ap)
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__attribute__((__format__(__printf__, 5, 0)));
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static krb5_error_code
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_warnerr(krb5_context context, int do_errtext,
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krb5_error_code code, int level, const char *fmt, va_list ap)
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{
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char xfmt[7] = "";
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const char *args[2], **arg;
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char *msg = NULL;
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const char *err_str = NULL;
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krb5_error_code ret;
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args[0] = args[1] = NULL;
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arg = args;
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if(fmt){
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strlcat(xfmt, "%s", sizeof(xfmt));
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if(do_errtext)
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strlcat(xfmt, ": ", sizeof(xfmt));
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ret = vasprintf(&msg, fmt, ap);
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if(ret < 0 || msg == NULL)
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return ENOMEM;
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*arg++ = msg;
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}
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if(context && do_errtext){
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strlcat(xfmt, "%s", sizeof(xfmt));
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err_str = krb5_get_error_message(context, code);
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if (err_str != NULL) {
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*arg = err_str;
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} else {
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*arg= "<unknown error>";
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}
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}
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if(context && context->warn_dest)
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krb5_log(context, context->warn_dest, level, xfmt, args[0], args[1]);
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else
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warnx(xfmt, args[0], args[1]);
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free(msg);
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krb5_free_error_message(context, err_str);
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return 0;
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}
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#define FUNC(ETEXT, CODE, LEVEL) \
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krb5_error_code ret; \
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va_list ap; \
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va_start(ap, fmt); \
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ret = _warnerr(context, ETEXT, CODE, LEVEL, fmt, ap); \
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va_end(ap);
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#undef __attribute__
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#define __attribute__(X)
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure.
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*
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* @param context A Kerberos 5 context.
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vwarn(krb5_context context, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((format (printf, 3, 0)))
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{
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return _warnerr(context, 1, code, 1, fmt, ap);
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}
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure.
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*
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* @param context A Kerberos 5 context.
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_warn(krb5_context context, krb5_error_code code, const char *fmt, ...)
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__attribute__ ((format (printf, 3, 4)))
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{
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FUNC(1, code, 1);
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return ret;
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}
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/**
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* Log a warning to the log, default stderr.
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*
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* @param context A Kerberos 5 context.
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vwarnx(krb5_context context, const char *fmt, va_list ap)
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__attribute__ ((format (printf, 2, 0)))
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{
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return _warnerr(context, 0, 0, 1, fmt, ap);
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}
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/**
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* Log a warning to the log, default stderr.
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*
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* @param context A Kerberos 5 context.
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_warnx(krb5_context context, const char *fmt, ...)
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__attribute__ ((format (printf, 2, 3)))
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{
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FUNC(0, 0, 1);
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return ret;
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_verr(krb5_context context, int eval, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 4, 0)))
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{
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_warnerr(context, 1, code, 0, fmt, ap);
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exit(eval);
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_err(krb5_context context, int eval, krb5_error_code code,
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const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 4, 5)))
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{
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FUNC(1, code, 0);
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exit(eval);
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_verrx(krb5_context context, int eval, const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 3, 0)))
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{
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_warnerr(context, 0, 0, 0, fmt, ap);
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exit(eval);
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, and then exit.
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*
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* @param context A Kerberos 5 context
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* @param eval the exit code to exit with
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_errx(krb5_context context, int eval, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 3, 4)))
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{
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FUNC(0, 0, 0);
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exit(eval);
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, include bthe error from
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* the last failure and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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* @param ap arguments
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vabort(krb5_context context, krb5_error_code code,
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const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 3, 0)))
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{
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_warnerr(context, 1, code, 0, fmt, ap);
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abort();
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, include the error from
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* the last failure and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_abort(krb5_context context, krb5_error_code code, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 3, 4)))
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{
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FUNC(1, code, 0);
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abort();
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UNREACHABLE(return 0);
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_vabortx(krb5_context context, const char *fmt, va_list ap)
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__attribute__ ((noreturn, format (printf, 2, 0)))
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{
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_warnerr(context, 0, 0, 0, fmt, ap);
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abort();
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UNREACHABLE(return 0);
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}
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/**
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* Log a warning to the log, default stderr, and then abort.
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*
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* @param context A Kerberos 5 context
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* @param code error code of the last error
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* @param fmt message to print
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_abortx(krb5_context context, const char *fmt, ...)
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__attribute__ ((noreturn, format (printf, 2, 3)))
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{
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FUNC(0, 0, 0);
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abort();
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UNREACHABLE(return 0);
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}
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/**
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* Set the default logging facility.
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*
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* @param context A Kerberos 5 context
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* @param fac Facility to use for logging.
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_set_warn_dest(krb5_context context, krb5_log_facility *fac)
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{
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context->warn_dest = fac;
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return 0;
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}
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/**
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* Get the default logging facility.
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*
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* @param context A Kerberos 5 context
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*
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* @ingroup krb5_error
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*/
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KRB5_LIB_FUNCTION krb5_log_facility * KRB5_LIB_CALL
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krb5_get_warn_dest(krb5_context context)
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{
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return context->warn_dest;
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}
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