76ca6f88da
The system hostname is now stored in prison0, and the global variable "hostname" has been removed, as has the hostname_mtx mutex. Jails may have their own host information, or they may inherit it from the parent/system. The proper way to read the hostname is via getcredhostname(), which will copy either the hostname associated with the passed cred, or the system hostname if you pass NULL. The system hostname can still be accessed directly (and without locking) at prison0.pr_host, but that should be avoided where possible. The "similar information" referred to is domainname, hostid, and hostuuid, which have also become prison parameters and had their associated global variables removed. Approved by: bz (mentor)
131 lines
3.4 KiB
C
131 lines
3.4 KiB
C
/* $NetBSD: authunix_prot.c,v 1.12 2000/01/22 22:19:17 mycroft Exp $ */
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/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char *sccsid2 = "@(#)authunix_prot.c 1.15 87/08/11 Copyr 1984 Sun Micro";
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static char *sccsid = "@(#)authunix_prot.c 2.1 88/07/29 4.0 RPCSRC";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* authunix_prot.c
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* XDR for UNIX style authentication parameters for RPC
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*
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*/
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#include <sys/param.h>
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/ucred.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include <rpc/auth.h>
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#include <rpc/rpc_com.h>
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/* gids compose part of a credential; there may not be more than 16 of them */
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#define NGRPS 16
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/*
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* XDR for unix authentication parameters.
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*/
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bool_t
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xdr_authunix_parms(XDR *xdrs, uint32_t *time, struct xucred *cred)
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{
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uint32_t namelen;
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uint32_t ngroups, i;
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uint32_t junk;
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char hostbuf[MAXHOSTNAMELEN];
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if (xdrs->x_op == XDR_ENCODE) {
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/*
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* Restrict name length to 255 according to RFC 1057.
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*/
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getcredhostname(NULL, hostbuf, sizeof(hostbuf));
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namelen = strlen(hostbuf);
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if (namelen > 255)
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namelen = 255;
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} else {
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namelen = 0;
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}
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junk = 0;
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if (!xdr_uint32_t(xdrs, time)
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|| !xdr_uint32_t(xdrs, &namelen))
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return (FALSE);
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/*
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* Ignore the hostname on decode.
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*/
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if (xdrs->x_op == XDR_ENCODE) {
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if (!xdr_opaque(xdrs, hostbuf, namelen))
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return (FALSE);
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} else {
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xdr_setpos(xdrs, xdr_getpos(xdrs) + RNDUP(namelen));
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}
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if (!xdr_uint32_t(xdrs, &cred->cr_uid))
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return (FALSE);
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if (!xdr_uint32_t(xdrs, &cred->cr_groups[0]))
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return (FALSE);
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if (xdrs->x_op == XDR_ENCODE) {
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ngroups = cred->cr_ngroups - 1;
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if (ngroups > NGRPS)
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ngroups = NGRPS;
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}
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if (!xdr_uint32_t(xdrs, &ngroups))
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return (FALSE);
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for (i = 0; i < ngroups; i++) {
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if (i + 1 < NGROUPS) {
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if (!xdr_uint32_t(xdrs, &cred->cr_groups[i + 1]))
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return (FALSE);
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} else {
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if (!xdr_uint32_t(xdrs, &junk))
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return (FALSE);
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}
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}
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if (xdrs->x_op == XDR_DECODE) {
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if (ngroups + 1 > NGROUPS)
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cred->cr_ngroups = NGROUPS;
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else
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cred->cr_ngroups = ngroups + 1;
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}
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return (TRUE);
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}
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