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/*
* lib/krb5/krb/in_tkt_sky.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_get_in_tkt_with_skey()
*
*/
#include "k5-int.h"
struct skey_keyproc_arg {
const krb5_keyblock *key;
krb5_principal client; /* it's a pointer, really! */
};
/*
* Key-generator for in_tkt_skey, below.
* "keyseed" is actually a krb5_keyblock *, or NULL if we should fetch
* from system area.
*/
krb5_error_code skey_keyproc
PROTOTYPE((krb5_context,
const krb5_enctype,
krb5_data *,
krb5_const_pointer,
krb5_keyblock **));
krb5_error_code
skey_keyproc(context, type, salt, keyseed, key)
krb5_context context;
const krb5_enctype type;
krb5_data * salt;
krb5_const_pointer keyseed;
krb5_keyblock ** key;
{
krb5_keyblock *realkey;
krb5_error_code retval;
const krb5_keyblock * keyblock;
keyblock = (const krb5_keyblock *)keyseed;
if (!valid_enctype(type))
return KRB5_PROG_ETYPE_NOSUPP;
if ((retval = krb5_copy_keyblock(context, keyblock, &realkey)))
return retval;
if (realkey->enctype != type) {
krb5_free_keyblock(context, realkey);
return KRB5_PROG_ETYPE_NOSUPP;
}
*key = realkey;
return 0;
}
/*
Similar to krb5_get_in_tkt_with_password.
Attempts to get an initial ticket for creds->client to use server
creds->server, (realm is taken from creds->client), with options
options, and using creds->times.starttime, creds->times.endtime,
creds->times.renew_till as from, till, and rtime.
creds->times.renew_till is ignored unless the RENEWABLE option is requested.
If addrs is non-NULL, it is used for the addresses requested. If it is
null, the system standard addresses are used.
If keyblock is NULL, an appropriate key for creds->client is retrieved
from the system key store (e.g. /etc/srvtab). If keyblock is non-NULL,
it is used as the decryption key.
A succesful call will place the ticket in the credentials cache ccache.
returns system errors, encryption errors
*/
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_get_in_tkt_with_skey(context, options, addrs, ktypes, pre_auth_types,
key, ccache, creds, ret_as_reply)
krb5_context context;
const krb5_flags options;
krb5_address FAR * const FAR * addrs;
krb5_enctype FAR * ktypes;
krb5_preauthtype FAR * pre_auth_types;
const krb5_keyblock FAR * key;
krb5_ccache ccache;
krb5_creds FAR * creds;
krb5_kdc_rep FAR * FAR * ret_as_reply;
{
if (key)
return krb5_get_in_tkt(context, options, addrs, ktypes, pre_auth_types,
skey_keyproc, (krb5_pointer)key,
krb5_kdc_rep_decrypt_proc, 0, creds,
ccache, ret_as_reply);
else
return krb5_get_in_tkt_with_keytab(context, options, addrs, ktypes,
pre_auth_types, NULL, ccache,
creds, ret_as_reply);
}
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