216 lines
6.2 KiB
C
216 lines
6.2 KiB
C
/*
|
|
* Copyright (c) 2004 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
RCSID("$Id: copy_cred_cache.c 15542 2005-07-01 07:20:54Z lha $");
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <krb5.h>
|
|
#include <roken.h>
|
|
#include <getarg.h>
|
|
#include <parse_units.h>
|
|
#include <parse_time.h>
|
|
|
|
static int krbtgt_only_flag;
|
|
static char *service_string;
|
|
static char *enctype_string;
|
|
static char *flags_string;
|
|
static char *valid_string;
|
|
static int fcache_version;
|
|
static int help_flag;
|
|
static int version_flag;
|
|
|
|
static struct getargs args[] = {
|
|
{ "krbtgt-only", 0, arg_flag, &krbtgt_only_flag,
|
|
"only copy local krbtgt" },
|
|
{ "service", 0, arg_string, &service_string,
|
|
"limit to this service", "principal" },
|
|
{ "enctype", 0, arg_string, &enctype_string,
|
|
"limit to this enctype", "enctype" },
|
|
{ "flags", 0, arg_string, &flags_string,
|
|
"limit to these flags", "ticketflags" },
|
|
{ "valid-for", 0, arg_string, &valid_string,
|
|
"limit to creds valid for at least this long", "time" },
|
|
{ "fcache-version", 0, arg_integer, &fcache_version,
|
|
"file cache version to create" },
|
|
{ "version", 0, arg_flag, &version_flag },
|
|
{ "help", 'h', arg_flag, &help_flag }
|
|
};
|
|
|
|
static void
|
|
usage(int ret)
|
|
{
|
|
arg_printusage(args,
|
|
sizeof(args) / sizeof(*args),
|
|
NULL,
|
|
"[from-cache] to-cache");
|
|
exit(ret);
|
|
}
|
|
|
|
static int32_t
|
|
bitswap32(int32_t b)
|
|
{
|
|
int32_t r = 0;
|
|
int i;
|
|
for (i = 0; i < 32; i++) {
|
|
r = r << 1 | (b & 1);
|
|
b = b >> 1;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
static void
|
|
parse_ticket_flags(krb5_context context,
|
|
const char *string, krb5_ticket_flags *ret_flags)
|
|
{
|
|
TicketFlags ff;
|
|
int flags = parse_flags(string, asn1_TicketFlags_units(), 0);
|
|
if (flags == -1) /* XXX */
|
|
krb5_errx(context, 1, "bad flags specified: \"%s\"", string);
|
|
|
|
memset(&ff, 0, sizeof(ff));
|
|
ff.proxy = 1;
|
|
if (parse_flags("proxy", asn1_TicketFlags_units(), 0) == TicketFlags2int(ff))
|
|
ret_flags->i = flags;
|
|
else
|
|
ret_flags->i = bitswap32(flags);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
krb5_error_code ret;
|
|
krb5_context context;
|
|
int optidx = 0;
|
|
const char *from_name, *to_name;
|
|
krb5_ccache from_ccache, to_ccache;
|
|
krb5_flags whichfields = 0;
|
|
krb5_creds mcreds;
|
|
unsigned int matched;
|
|
|
|
setprogname(argv[0]);
|
|
|
|
memset(&mcreds, 0, sizeof(mcreds));
|
|
|
|
if (getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
|
|
usage(1);
|
|
|
|
if (help_flag)
|
|
usage(0);
|
|
|
|
if (version_flag) {
|
|
print_version(NULL);
|
|
exit(0);
|
|
}
|
|
argc -= optidx;
|
|
argv += optidx;
|
|
|
|
if (argc < 1 || argc > 2)
|
|
usage(1);
|
|
|
|
if (krb5_init_context(&context))
|
|
errx(1, "krb5_init_context failed");
|
|
|
|
if (service_string) {
|
|
ret = krb5_parse_name(context, service_string, &mcreds.server);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "%s", service_string);
|
|
}
|
|
if (enctype_string) {
|
|
krb5_enctype enctype;
|
|
ret = krb5_string_to_enctype(context, enctype_string, &enctype);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "%s", enctype_string);
|
|
whichfields |= KRB5_TC_MATCH_KEYTYPE;
|
|
mcreds.session.keytype = enctype;
|
|
}
|
|
if (flags_string) {
|
|
parse_ticket_flags(context, flags_string, &mcreds.flags);
|
|
whichfields |= KRB5_TC_MATCH_FLAGS;
|
|
}
|
|
if (valid_string) {
|
|
time_t t = parse_time(valid_string, "s");
|
|
if(t < 0)
|
|
errx(1, "unknown time \"%s\"", valid_string);
|
|
mcreds.times.endtime = time(NULL) + t;
|
|
whichfields |= KRB5_TC_MATCH_TIMES;
|
|
}
|
|
if (fcache_version)
|
|
krb5_set_fcache_version(context, fcache_version);
|
|
|
|
if (argc == 1) {
|
|
from_name = krb5_cc_default_name(context);
|
|
to_name = argv[0];
|
|
} else {
|
|
from_name = argv[0];
|
|
to_name = argv[1];
|
|
}
|
|
|
|
ret = krb5_cc_resolve(context, from_name, &from_ccache);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "%s", from_name);
|
|
|
|
if (krbtgt_only_flag) {
|
|
krb5_principal client;
|
|
ret = krb5_cc_get_principal(context, from_ccache, &client);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "getting default principal");
|
|
ret = krb5_make_principal(context, &mcreds.server,
|
|
krb5_principal_get_realm(context, client),
|
|
KRB5_TGS_NAME,
|
|
krb5_principal_get_realm(context, client),
|
|
NULL);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "constructing krbtgt principal");
|
|
krb5_free_principal(context, client);
|
|
}
|
|
ret = krb5_cc_resolve(context, to_name, &to_ccache);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "%s", to_name);
|
|
|
|
ret = krb5_cc_copy_cache_match(context, from_ccache, to_ccache,
|
|
whichfields, &mcreds, &matched);
|
|
if (ret)
|
|
krb5_err(context, 1, ret, "copying cred cache");
|
|
|
|
krb5_cc_close(context, from_ccache);
|
|
if(matched == 0)
|
|
krb5_cc_destroy(context, to_ccache);
|
|
else
|
|
krb5_cc_close(context, to_ccache);
|
|
krb5_free_context(context);
|
|
return matched == 0;
|
|
}
|