f468c2fed1
When the cred passed krb5_build_ap_req() has a different name for the actual ticket (e.g., because the entry came from a ccache with an alias name as the entry name) then we were putting a Ticket on the wire with the name from the cred rather than from the Ticket in the cred. We don't think this is intended or desirable. The server should see the Ticket _exactly_ as minted by the KDC. Perhaps AP-REQ should have used an OCTET STRING to contain the Ticket given that Ticket is a PDU, which would make a byte-for-byte copy trivial, but as it is it uses Ticket instead. Therefore this commit has it decode the Ticket from the cred and then C struct assign that value to the AP-REP's ticket field -- this then copies the Ticket as exactly as vended.
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 1997 - 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.
|
|
*/
|
|
|
|
#include "krb5_locl.h"
|
|
|
|
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
|
|
krb5_build_ap_req (krb5_context context,
|
|
krb5_enctype enctype,
|
|
krb5_creds *cred,
|
|
krb5_flags ap_options,
|
|
krb5_data authenticator,
|
|
krb5_data *retdata)
|
|
{
|
|
krb5_error_code ret = 0;
|
|
AP_REQ ap;
|
|
size_t len;
|
|
|
|
ap.pvno = 5;
|
|
ap.msg_type = krb_ap_req;
|
|
memset(&ap.ap_options, 0, sizeof(ap.ap_options));
|
|
ap.ap_options.use_session_key = (ap_options & AP_OPTS_USE_SESSION_KEY) > 0;
|
|
ap.ap_options.mutual_required = (ap_options & AP_OPTS_MUTUAL_REQUIRED) > 0;
|
|
|
|
decode_Ticket(cred->ticket.data, cred->ticket.length, &ap.ticket, &len);
|
|
ap.authenticator.etype = enctype;
|
|
ap.authenticator.kvno = NULL;
|
|
ap.authenticator.cipher = authenticator;
|
|
|
|
ASN1_MALLOC_ENCODE(AP_REQ, retdata->data, retdata->length, &ap, &len, ret);
|
|
if (ret == 0 && retdata->length != len)
|
|
krb5_abortx(context, "internal error in ASN.1 encoder");
|
|
free_AP_REQ(&ap);
|
|
return ret;
|
|
}
|