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/*
* $Source$
* $Author$
*
* Copyright 1990 by the Massachusetts Institute of Technology.
*
* For copying and distribution information, please see the file
* <krb5/copyright.h>.
*
* krb5_rd_req()
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_rd_req_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/copyright.h>
#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
*/
/* widen prototypes, if needed */
#include <krb5/widen.h>
typedef krb5_error_code (*rdreq_key_proc) PROTOTYPE((krb5_pointer,
krb5_principal,
krb5_kvno,
krb5_keyblock **));
/* and back to normal... */
#include <krb5/narrow.h>
krb5_error_code
krb5_rd_req(inbuf, server, sender_addr, fetchfrom, keyproc, keyprocarg,
rcache, authdat)
const krb5_data *inbuf;
krb5_const_principal server;
const krb5_address *sender_addr;
krb5_const_pointer fetchfrom;
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 ISODE_50_LOCAL_ERR_BADMSGTYPE:
return KRB5KRB_AP_ERR_BADVERSION;
default:
return(retval);
}
}
retval = krb5_rd_req_decoded(request, server, sender_addr, fetchfrom,
keyproc, keyprocarg, rcache, authdat);
krb5_free_ap_req(request);
return retval;
}
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