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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* nisplus/ether_addr.c
*
* nisplus backend for nsswitch "ethers" database
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* All routines necessary to deal with the ethers NIS+ table. The table
* contains mapping between 48 bit ethernet addresses and their corresponding
* hosts name. The addresses have an ascii representation of the form
* "x:x:x:x:x:x" where x is a hex number between 0x00 and 0xff; the
* bytes are always in network order.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <net/if_arp.h>
#include <netinet/if_ether.h>
#include <strings.h>
#include <nss_dbdefs.h>
#include "nisplus_common.h"
#include "nisplus_tables.h"
static nss_status_t
getbyhost(be, a)
nisplus_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
return (_nss_nisplus_lookup(be, argp, ETHER_TAG_NAME,
argp->key.name));
}
static nss_status_t
getbyether(be, a)
nisplus_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
char etherstr[18];
uchar_t *e = argp->key.ether;
(void) snprintf(etherstr, 18, "%x:%x:%x:%x:%x:%x",
*e, *(e + 1), *(e + 2), *(e + 3), *(e + 4), *(e + 5));
return (_nss_nisplus_lookup(be, argp, ETHER_TAG_ADDR,
etherstr));
}
/*
* Convert the ethers nisplus object into files format
*
* Returns NSS_STR_PARSE_{SUCCESS, ERANGE, PARSE}
*/
/*ARGSUSED*/
static int
nis_object2str(nobj, obj, be, argp)
int nobj;
nis_object *obj;
nisplus_backend_ptr_t be;
nss_XbyY_args_t *argp;
{
char *addr, *name;
int addrlen, namelen;
struct entry_col *ecol;
/*
* If we got more than one nis_object, we just ignore it.
* Although it should never have happened.
*
* ASSUMPTION: All the columns in the NIS+ tables are
* null terminated.
*/
if (obj->zo_data.zo_type != NIS_ENTRY_OBJ ||
obj->EN_data.en_cols.en_cols_len < ETHER_COL) {
/* namespace/table/object is curdled */
return (NSS_STR_PARSE_PARSE);
}
ecol = obj->EN_data.en_cols.en_cols_val;
/* addr */
__NISPLUS_GETCOL_OR_RETURN(ecol, ETHER_NDX_ADDR, addrlen, addr);
/* name */
__NISPLUS_GETCOL_OR_RETURN(ecol, ETHER_NDX_NAME, namelen, name);
/* skip comment */
/*
* can't use argp->buf.result == NULL test to determine if
* the caller is nscd or not.
*
* exclude trailing null from length
*/
be->buflen = addrlen + namelen + 1;
if ((be->buffer = calloc(1, be->buflen + 1)) == NULL)
return (NSS_STR_PARSE_PARSE);
(void) snprintf(be->buffer, be->buflen + 1, "%s %s", addr, name);
#ifdef DEBUG
(void) fprintf(stdout, "ethers [%s]\n", be->buffer);
(void) fflush(stdout);
#endif /* DEBUG */
return (NSS_STR_PARSE_SUCCESS);
}
static nisplus_backend_op_t ethers_ops[] = {
_nss_nisplus_destr,
getbyhost,
getbyether
};
/*ARGSUSED*/
nss_backend_t *
_nss_nisplus_ethers_constr(dummy1, dummy2, dummy3)
const char *dummy1, *dummy2, *dummy3;
{
return (_nss_nisplus_constr(ethers_ops,
sizeof (ethers_ops) / sizeof (ethers_ops[0]),
ETHER_TBLNAME, nis_object2str));
}
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