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/*
* lib/krb5/krb/rd_req.c
*
* Copyright 1990,1991 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb5_rd_req()
*/
#include <krb5/krb5.h>
#include <krb5/asn1.h>
#include <krb5/ext-proto.h>
/*
* Parses a KRB_AP_REQ message, returning its contents.
*
* server specifies the expected server's name for the ticket.
*
* sender_addr specifies the address(es) expected to be present in the
* ticket.
*
* rcache specifies a replay detection cache used to store authenticators and
* server names
*
* keyproc specifies a procedure to generate a decryption key for the
* ticket. If keyproc is non-NULL, keyprocarg is passed to it, and the result
* used as a decryption key. If keyproc is NULL, then fetchfrom is checked;
* if it is non-NULL, it specifies a parameter name from which to retrieve the
* decryption key. If fetchfrom is NULL, then the default key store is
* consulted.
*
* authdat is set to point at allocated storage structures; the caller
* should free them when finished.
*
* returns system errors, encryption errors, replay errors
*/
krb5_error_code INTERFACE
krb5_rd_req(context, inbuf, server, sender_addr, fetchfrom, keyproc,
keyprocarg, rcache, authdat)
krb5_context context;
const krb5_data *inbuf;
krb5_const_principal server;
const krb5_address *sender_addr;
const char * fetchfrom;
krb5_rdreq_key_proc keyproc;
krb5_pointer keyprocarg;
krb5_rcache rcache;
krb5_tkt_authent **authdat;
{
krb5_error_code retval;
krb5_ap_req *request;
if (!krb5_is_ap_req(inbuf))
return KRB5KRB_AP_ERR_MSG_TYPE;
if (retval = decode_krb5_ap_req(inbuf, &request)) {
switch (retval) {
case KRB5_BADMSGTYPE:
return KRB5KRB_AP_ERR_BADVERSION;
default:
return(retval);
}
}
retval = krb5_rd_req_decoded(context, request, server, sender_addr,
fetchfrom, keyproc, keyprocarg, rcache,
authdat);
krb5_free_ap_req(context, request);
return retval;
}
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