mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/* $NetBSD: authunix_prot.c,v 1.12 2000/01/22 22:19:17 mycroft Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2009, Sun Microsystems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* - Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* - Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* - Neither the name of Sun Microsystems, Inc. nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char *sccsid2 = "@(#)authunix_prot.c 1.15 87/08/11 Copyr 1984 Sun Micro";
|
|
static char *sccsid = "@(#)authunix_prot.c 2.1 88/07/29 4.0 RPCSRC";
|
|
#endif
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* authunix_prot.c
|
|
* XDR for UNIX style authentication parameters for RPC
|
|
*
|
|
* Copyright (C) 1984, Sun Microsystems, Inc.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/jail.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/ucred.h>
|
|
|
|
#include <rpc/types.h>
|
|
#include <rpc/xdr.h>
|
|
#include <rpc/auth.h>
|
|
|
|
#include <rpc/rpc_com.h>
|
|
|
|
/* gids compose part of a credential; there may not be more than 16 of them */
|
|
#define NGRPS 16
|
|
|
|
/*
|
|
* XDR for unix authentication parameters.
|
|
*/
|
|
bool_t
|
|
xdr_authunix_parms(XDR *xdrs, uint32_t *time, struct xucred *cred)
|
|
{
|
|
uint32_t namelen;
|
|
uint32_t ngroups, i;
|
|
uint32_t junk;
|
|
char hostbuf[MAXHOSTNAMELEN];
|
|
|
|
if (xdrs->x_op == XDR_ENCODE) {
|
|
/*
|
|
* Restrict name length to 255 according to RFC 1057.
|
|
*/
|
|
getcredhostname(NULL, hostbuf, sizeof(hostbuf));
|
|
namelen = strlen(hostbuf);
|
|
if (namelen > 255)
|
|
namelen = 255;
|
|
} else {
|
|
namelen = 0;
|
|
}
|
|
junk = 0;
|
|
|
|
if (!xdr_uint32_t(xdrs, time)
|
|
|| !xdr_uint32_t(xdrs, &namelen))
|
|
return (FALSE);
|
|
|
|
/*
|
|
* Ignore the hostname on decode.
|
|
*/
|
|
if (xdrs->x_op == XDR_ENCODE) {
|
|
if (!xdr_opaque(xdrs, hostbuf, namelen))
|
|
return (FALSE);
|
|
} else {
|
|
xdr_setpos(xdrs, xdr_getpos(xdrs) + RNDUP(namelen));
|
|
}
|
|
|
|
if (!xdr_uint32_t(xdrs, &cred->cr_uid))
|
|
return (FALSE);
|
|
if (!xdr_uint32_t(xdrs, &cred->cr_groups[0]))
|
|
return (FALSE);
|
|
|
|
if (xdrs->x_op == XDR_ENCODE) {
|
|
ngroups = cred->cr_ngroups - 1;
|
|
if (ngroups > NGRPS)
|
|
ngroups = NGRPS;
|
|
}
|
|
|
|
if (!xdr_uint32_t(xdrs, &ngroups))
|
|
return (FALSE);
|
|
for (i = 0; i < ngroups; i++) {
|
|
if (i + 1 < ngroups_max + 1) {
|
|
if (!xdr_uint32_t(xdrs, &cred->cr_groups[i + 1]))
|
|
return (FALSE);
|
|
} else {
|
|
if (!xdr_uint32_t(xdrs, &junk))
|
|
return (FALSE);
|
|
}
|
|
}
|
|
|
|
if (xdrs->x_op == XDR_DECODE) {
|
|
if (ngroups + 1 > ngroups_max + 1)
|
|
cred->cr_ngroups = ngroups_max + 1;
|
|
else
|
|
cred->cr_ngroups = ngroups + 1;
|
|
}
|
|
|
|
return (TRUE);
|
|
}
|