140 lines
4.2 KiB
C
140 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 1997 - 2000, 2002 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.
|
|
*/
|
|
|
|
/* implementation of krb_mk_req that uses 524 protocol */
|
|
|
|
#include "45_locl.h"
|
|
|
|
RCSID("$Id: mk_req.c 17445 2006-05-05 10:37:46Z lha $");
|
|
|
|
static int lifetime = 255;
|
|
|
|
static void
|
|
build_request(KTEXT req,
|
|
const char *name, const char *inst, const char *realm,
|
|
uint32_t checksum)
|
|
{
|
|
struct timeval tv;
|
|
krb5_storage *sp;
|
|
krb5_data data;
|
|
sp = krb5_storage_emem();
|
|
krb5_store_stringz(sp, name);
|
|
krb5_store_stringz(sp, inst);
|
|
krb5_store_stringz(sp, realm);
|
|
krb5_store_int32(sp, checksum);
|
|
gettimeofday(&tv, NULL);
|
|
krb5_store_int8(sp, tv.tv_usec / 5000);
|
|
krb5_store_int32(sp, tv.tv_sec);
|
|
krb5_storage_to_data(sp, &data);
|
|
krb5_storage_free(sp);
|
|
memcpy(req->dat, data.data, data.length);
|
|
req->length = (data.length + 7) & ~7;
|
|
krb5_data_free(&data);
|
|
}
|
|
|
|
#ifdef KRB_MK_REQ_CONST
|
|
int
|
|
krb_mk_req(KTEXT authent,
|
|
const char *service, const char *instance, const char *realm,
|
|
int32_t checksum)
|
|
#else
|
|
int
|
|
krb_mk_req(KTEXT authent,
|
|
char *service, char *instance, char *realm,
|
|
int32_t checksum)
|
|
|
|
#endif
|
|
{
|
|
CREDENTIALS cr;
|
|
KTEXT_ST req;
|
|
krb5_storage *sp;
|
|
int code;
|
|
/* XXX get user realm */
|
|
const char *myrealm = realm;
|
|
krb5_data a;
|
|
|
|
code = krb_get_cred(service, instance, realm, &cr);
|
|
if(code || time(NULL) > krb_life_to_time(cr.issue_date, cr.lifetime)){
|
|
code = get_ad_tkt((char *)service,
|
|
(char *)instance, (char *)realm, lifetime);
|
|
if(code == KSUCCESS)
|
|
code = krb_get_cred(service, instance, realm, &cr);
|
|
}
|
|
|
|
if(code)
|
|
return code;
|
|
|
|
sp = krb5_storage_emem();
|
|
|
|
krb5_store_int8(sp, KRB_PROT_VERSION);
|
|
krb5_store_int8(sp, AUTH_MSG_APPL_REQUEST);
|
|
|
|
krb5_store_int8(sp, cr.kvno);
|
|
krb5_store_stringz(sp, realm);
|
|
krb5_store_int8(sp, cr.ticket_st.length);
|
|
|
|
build_request(&req, cr.pname, cr.pinst, myrealm, checksum);
|
|
encrypt_ktext(&req, &cr.session, DES_ENCRYPT);
|
|
|
|
krb5_store_int8(sp, req.length);
|
|
|
|
krb5_storage_write(sp, cr.ticket_st.dat, cr.ticket_st.length);
|
|
krb5_storage_write(sp, req.dat, req.length);
|
|
krb5_storage_to_data(sp, &a);
|
|
krb5_storage_free(sp);
|
|
memcpy(authent->dat, a.data, a.length);
|
|
authent->length = a.length;
|
|
krb5_data_free(&a);
|
|
|
|
memset(&cr, 0, sizeof(cr));
|
|
memset(&req, 0, sizeof(req));
|
|
|
|
return KSUCCESS;
|
|
}
|
|
|
|
/*
|
|
* krb_set_lifetime sets the default lifetime for additional tickets
|
|
* obtained via krb_mk_req().
|
|
*
|
|
* It returns the previous value of the default lifetime.
|
|
*/
|
|
|
|
int
|
|
krb_set_lifetime(int newval)
|
|
{
|
|
int olife = lifetime;
|
|
|
|
lifetime = newval;
|
|
return(olife);
|
|
}
|