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.
330 lines
8.5 KiB
C
330 lines
8.5 KiB
C
/*
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* Copyright (c) 2003-2007 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 KTH nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <roken.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <gssapi.h>
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#include <gssapi_krb5.h>
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#include <gssapi_spnego.h>
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#include <err.h>
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#include <getarg.h>
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#include "test_common.h"
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static void
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print_time(OM_uint32 time_rec)
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{
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if (time_rec == GSS_C_INDEFINITE) {
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printf("cred never expire\n");
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} else {
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time_t t = time_rec + time(NULL);
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printf("expiration time: %s", ctime(&t));
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}
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}
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#if 0
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static void
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test_add(gss_cred_id_t cred_handle)
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{
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OM_uint32 major_status, minor_status;
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gss_cred_id_t copy_cred;
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OM_uint32 time_rec;
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major_status = gss_add_cred (&minor_status,
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cred_handle,
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GSS_C_NO_NAME,
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GSS_KRB5_MECHANISM,
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GSS_C_INITIATE,
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0,
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0,
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©_cred,
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NULL,
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&time_rec,
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NULL);
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if (GSS_ERROR(major_status))
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errx(1, "add_cred failed");
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print_time(time_rec);
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major_status = gss_release_cred(&minor_status,
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©_cred);
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if (GSS_ERROR(major_status))
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errx(1, "release_cred failed");
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}
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static void
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copy_cred(void)
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{
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OM_uint32 major_status, minor_status;
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gss_cred_id_t cred_handle;
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OM_uint32 time_rec;
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major_status = gss_acquire_cred(&minor_status,
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GSS_C_NO_NAME,
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0,
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NULL,
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GSS_C_INITIATE,
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&cred_handle,
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NULL,
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&time_rec);
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if (GSS_ERROR(major_status))
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errx(1, "acquire_cred failed");
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print_time(time_rec);
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test_add(cred_handle);
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test_add(cred_handle);
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test_add(cred_handle);
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major_status = gss_release_cred(&minor_status,
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&cred_handle);
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if (GSS_ERROR(major_status))
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errx(1, "release_cred failed");
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}
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#endif
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static gss_cred_id_t
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acquire_cred_service(const char *service,
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gss_OID nametype,
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gss_OID_set oidset,
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int flags)
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{
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OM_uint32 major_status, minor_status;
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gss_cred_id_t cred_handle;
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OM_uint32 time_rec;
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gss_buffer_desc name_buffer;
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gss_name_t name = GSS_C_NO_NAME;
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if (service) {
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name_buffer.value = rk_UNCONST(service);
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name_buffer.length = strlen(service);
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major_status = gss_import_name(&minor_status,
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&name_buffer,
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nametype,
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&name);
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if (GSS_ERROR(major_status))
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errx(1, "import_name failed");
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}
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major_status = gss_acquire_cred(&minor_status,
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name,
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0,
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oidset,
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flags,
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&cred_handle,
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NULL,
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&time_rec);
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if (GSS_ERROR(major_status)) {
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warnx("acquire_cred failed: %s",
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gssapi_err(major_status, minor_status, GSS_C_NO_OID));
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} else {
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print_time(time_rec);
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gss_release_cred(&minor_status, &cred_handle);
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}
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if (name != GSS_C_NO_NAME)
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gss_release_name(&minor_status, &name);
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if (GSS_ERROR(major_status))
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exit(1);
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return cred_handle;
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}
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static int version_flag = 0;
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static int help_flag = 0;
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static int kerberos_flag = 0;
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static int enctype = 0;
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static char *acquire_name;
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static char *acquire_type;
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static char *target_name;
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static char *name_type;
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static char *ccache;
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static int num_loops = 1;
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static struct getargs args[] = {
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{"acquire-name", 0, arg_string, &acquire_name, "name", NULL },
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{"acquire-type", 0, arg_string, &acquire_type, "type", NULL },
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{"enctype", 0, arg_integer, &enctype, "enctype-num", NULL },
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{"loops", 0, arg_integer, &num_loops, "enctype-num", NULL },
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{"kerberos", 0, arg_flag, &kerberos_flag, "enctype-num", NULL },
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{"target-name", 0, arg_string, &target_name, "name", NULL },
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{"ccache", 0, arg_string, &ccache, "name", NULL },
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{"name-type", 0, arg_string, &name_type, "type", NULL },
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{"version", 0, arg_flag, &version_flag, "print version", NULL },
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{"help", 0, arg_flag, &help_flag, NULL, NULL }
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};
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static void
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usage (int ret)
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{
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arg_printusage (args, sizeof(args)/sizeof(*args), NULL, "");
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exit (ret);
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}
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int
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main(int argc, char **argv)
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{
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gss_OID_set oidset = GSS_C_NULL_OID_SET;
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gss_OID mechoid = GSS_C_NO_OID;
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OM_uint32 maj_stat, min_stat;
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gss_cred_id_t cred;
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gss_name_t target = GSS_C_NO_NAME;
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int i, optidx = 0;
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OM_uint32 flag;
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gss_OID type;
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setprogname(argv[0]);
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if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
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usage(1);
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if (help_flag)
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usage (0);
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if(version_flag){
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print_version(NULL);
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exit(0);
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}
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argc -= optidx;
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argv += optidx;
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if (argc != 0)
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usage(1);
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if (acquire_type) {
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if (strcasecmp(acquire_type, "both") == 0)
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flag = GSS_C_BOTH;
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else if (strcasecmp(acquire_type, "accept") == 0)
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flag = GSS_C_ACCEPT;
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else if (strcasecmp(acquire_type, "initiate") == 0)
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flag = GSS_C_INITIATE;
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else
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errx(1, "unknown type %s", acquire_type);
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} else
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flag = GSS_C_ACCEPT;
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if (name_type) {
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if (strcasecmp("hostbased-service", name_type) == 0)
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type = GSS_C_NT_HOSTBASED_SERVICE;
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else if (strcasecmp("user-name", name_type) == 0)
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type = GSS_C_NT_USER_NAME;
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else
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errx(1, "unknown name type %s", name_type);
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} else
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type = GSS_C_NT_HOSTBASED_SERVICE;
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if (ccache) {
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maj_stat = gss_krb5_ccache_name(&min_stat, ccache, NULL);
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if (GSS_ERROR(maj_stat))
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errx(1, "gss_krb5_ccache_name %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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}
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if (kerberos_flag) {
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mechoid = GSS_KRB5_MECHANISM;
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maj_stat = gss_create_empty_oid_set(&min_stat, &oidset);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_create_empty_oid_set: %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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maj_stat = gss_add_oid_set_member(&min_stat, GSS_KRB5_MECHANISM, &oidset);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_add_oid_set_member: %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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}
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if (target_name) {
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gss_buffer_desc name;
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name.value = target_name;
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name.length = strlen(target_name);
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maj_stat = gss_import_name(&min_stat, &name,
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GSS_C_NT_HOSTBASED_SERVICE, &target);
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if (maj_stat != GSS_S_COMPLETE)
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errx(1, "gss_import_name: %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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}
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for (i = 0; i < num_loops; i++) {
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cred = acquire_cred_service(acquire_name, type, oidset, flag);
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if (enctype) {
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int32_t enctypelist = enctype;
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maj_stat = gss_krb5_set_allowable_enctypes(&min_stat, cred,
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1, &enctypelist);
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if (maj_stat)
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errx(1, "gss_krb5_set_allowable_enctypes: %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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}
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if (target) {
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gss_ctx_id_t context = GSS_C_NO_CONTEXT;
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gss_buffer_desc out;
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out.length = 0;
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out.value = NULL;
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maj_stat = gss_init_sec_context(&min_stat,
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cred, &context,
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target, mechoid,
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GSS_C_MUTUAL_FLAG, 0, NULL,
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GSS_C_NO_BUFFER, NULL,
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&out, NULL, NULL);
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if (maj_stat != GSS_S_COMPLETE && maj_stat != GSS_S_CONTINUE_NEEDED)
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errx(1, "init_sec_context failed: %s",
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gssapi_err(maj_stat, min_stat, GSS_C_NO_OID));
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gss_release_buffer(&min_stat, &out);
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gss_delete_sec_context(&min_stat, &context, NULL);
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}
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gss_release_cred(&min_stat, &cred);
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}
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return 0;
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}
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