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/* $OpenBSD: kadm_server.c,v 1.2 1997/12/15 17:56:22 art Exp $ */
/* $KTH: kadm_server.c,v 1.9 1997/05/02 10:29:08 joda Exp $ */
/*
* Copyright (C) 1989 by the Massachusetts Institute of Technology
*
* Export of this software from the United States of America is assumed
* to 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.
*
*/
/*
* Kerberos administration server-side subroutines
*/
#include "kadm_locl.h"
/*
*kadm_ser_cpw - the server side of the change_password routine
* recieves : KTEXT, {key}
* returns : CKSUM, RETCODE
* acl : caller can change only own password
*
* Replaces the password (i.e. des key) of the caller with that specified in
* key. Returns no actual data from the master server, since this is called
* by a user
*/
int
kadm_ser_cpw(u_char *dat, int len, AUTH_DAT *ad, u_char **datout, int *outlen)
{
u_int32_t keylow, keyhigh;
des_cblock newkey;
int status;
int stvlen=0;
char *pw_msg;
char pword[MAX_KPW_LEN];
char *strings[4];
/* take key off the stream, and change the database */
if ((status = stv_long(dat, &keyhigh, 0, len)) < 0)
return(KADM_LENGTH_ERROR);
stvlen=status;
if ((status = stv_long(dat, &keylow, stvlen, len)) < 0)
return(KADM_LENGTH_ERROR);
stvlen+=status;
if((status = stv_string(dat, pword, stvlen, sizeof(pword), len))<0)
pword[0]=0;
keylow = ntohl(keylow);
keyhigh = ntohl(keyhigh);
memcpy(((char *)newkey) + 4, &keyhigh, 4);
memcpy(newkey, &keylow, 4);
strings[0] = ad->pname;
strings[1] = ad->pinst;
strings[2] = ad->prealm;
strings[3] = NULL;
status = kadm_pw_check(pword, &newkey, &pw_msg, strings);
memset(pword, 0, sizeof(pword));
memset(dat, 0, len);
if(status != KADM_SUCCESS){
*datout=malloc(0);
*outlen=vts_string(pw_msg, datout, 0);
return status;
}
*datout=0;
*outlen=0;
return(kadm_change(ad->pname, ad->pinst, ad->prealm, newkey));
}
/*
* kadm_ser_add - the server side of the add_entry routine
* recieves : KTEXT, {values}
* returns : CKSUM, RETCODE, {values}
* acl : su, sms (as alloc)
*
* Adds and entry containing values to the database
* returns the values of the entry, so if you leave certain fields blank
* you will be able to determine the default values they are set to
*
*/
int
kadm_ser_add(u_char *dat, int len, AUTH_DAT *ad, u_char **datout, int *outlen)
{
Kadm_vals values, retvals;
long status;
if ((status = stream_to_vals(dat, &values, len)) < 0)
return(KADM_LENGTH_ERROR);
if ((status = kadm_add_entry(ad->pname, ad->pinst, ad->prealm,
&values, &retvals)) == KADM_DATA) {
*outlen = vals_to_stream(&retvals,datout);
return KADM_SUCCESS;
} else {
*outlen = 0;
return status;
}
}
/*
* kadm_ser_mod - the server side of the mod_entry routine
* recieves : KTEXT, {values, values}
* returns : CKSUM, RETCODE, {values}
* acl : su, sms (as register or dealloc)
*
* Modifies all entries corresponding to the first values so they match the
* second values.
* returns the values for the changed entries
*/
int
kadm_ser_mod(u_char *dat, int len, AUTH_DAT *ad, u_char **datout, int *outlen)
{
Kadm_vals vals1, vals2, retvals;
int wh;
long status;
if ((wh = stream_to_vals(dat, &vals1, len)) < 0)
return KADM_LENGTH_ERROR;
if ((status = stream_to_vals(dat+wh,&vals2, len-wh)) < 0)
return KADM_LENGTH_ERROR;
if ((status = kadm_mod_entry(ad->pname, ad->pinst, ad->prealm, &vals1,
&vals2, &retvals)) == KADM_DATA) {
*outlen = vals_to_stream(&retvals,datout);
return KADM_SUCCESS;
} else {
*outlen = 0;
return status;
}
}
int
kadm_ser_delete(u_char *dat, int len, AUTH_DAT *ad,
u_char **datout, int *outlen)
{
Kadm_vals values;
int wh;
int status;
if((wh = stream_to_vals(dat, &values, len)) < 0)
return KADM_LENGTH_ERROR;
if(wh != len)
return KADM_LENGTH_ERROR;
status = kadm_delete_entry(ad->pname, ad->pinst, ad->prealm,
&values);
*outlen = 0;
return status;
}
/*
* kadm_ser_get
* recieves : KTEXT, {values, flags}
* returns : CKSUM, RETCODE, {count, values, values, values}
* acl : su
*
* gets the fields requested by flags from all entries matching values
* returns this data for each matching recipient, after a count of how many
* such matches there were
*/
int
kadm_ser_get(u_char *dat, int len, AUTH_DAT *ad, u_char **datout, int *outlen)
{
Kadm_vals values, retvals;
u_char fl[FLDSZ];
int loop,wh;
long status;
if ((wh = stream_to_vals(dat, &values, len)) < 0)
return KADM_LENGTH_ERROR;
if (wh + FLDSZ > len)
return KADM_LENGTH_ERROR;
for (loop=FLDSZ-1; loop>=0; loop--)
fl[loop] = dat[wh++];
if ((status = kadm_get_entry(ad->pname, ad->pinst, ad->prealm,
&values, fl, &retvals)) == KADM_DATA) {
*outlen = vals_to_stream(&retvals,datout);
return KADM_SUCCESS;
} else {
*outlen = 0;
return status;
}
}
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