1994-05-26 06:35:07 +00:00
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Herb Hasler and Rick Macklem at The University of Guelph.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1989, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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1994-09-22 22:17:02 +00:00
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#endif /*not lint*/
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1994-05-26 06:35:07 +00:00
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#ifndef lint
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1997-03-11 12:43:45 +00:00
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/*static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; */
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1994-09-22 22:17:02 +00:00
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static const char rcsid[] =
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1997-12-13 19:50:14 +00:00
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"$Id: mountd.c,v 1.26 1997/12/10 20:33:59 guido Exp $";
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1994-09-22 22:17:02 +00:00
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#endif /*not lint*/
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1994-05-26 06:35:07 +00:00
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/syslog.h>
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#include <sys/ucred.h>
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1997-03-27 20:01:07 +00:00
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#include <sys/sysctl.h>
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1994-05-26 06:35:07 +00:00
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#include <rpc/rpc.h>
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#include <rpc/pmap_clnt.h>
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#include <rpc/pmap_prot.h>
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#ifdef ISO
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#include <netiso/iso.h>
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#endif
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#include <nfs/rpcv2.h>
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1995-06-27 11:07:30 +00:00
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#include <nfs/nfsproto.h>
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1997-03-27 20:01:07 +00:00
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#include <nfs/nfs.h>
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1997-03-11 12:43:45 +00:00
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#include <ufs/ufs/ufsmount.h>
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#include <msdosfs/msdosfsmount.h>
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#include <isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */
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1994-05-26 06:35:07 +00:00
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <errno.h>
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#include <grp.h>
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#include <netdb.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "pathnames.h"
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#ifdef DEBUG
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#include <stdarg.h>
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#endif
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/*
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* Structures for keeping the mount list and export list
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*/
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struct mountlist {
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struct mountlist *ml_next;
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char ml_host[RPCMNT_NAMELEN+1];
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char ml_dirp[RPCMNT_PATHLEN+1];
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};
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struct dirlist {
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struct dirlist *dp_left;
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struct dirlist *dp_right;
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int dp_flag;
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struct hostlist *dp_hosts; /* List of hosts this dir exported to */
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char dp_dirp[1]; /* Actually malloc'd to size of dir */
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};
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/* dp_flag bits */
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#define DP_DEFSET 0x1
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1995-06-27 11:07:30 +00:00
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#define DP_HOSTSET 0x2
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#define DP_KERB 0x4
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1994-05-26 06:35:07 +00:00
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struct exportlist {
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struct exportlist *ex_next;
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struct dirlist *ex_dirl;
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struct dirlist *ex_defdir;
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int ex_flag;
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fsid_t ex_fs;
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char *ex_fsdir;
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1997-07-16 09:27:53 +00:00
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char *ex_indexfile;
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1994-05-26 06:35:07 +00:00
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};
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/* ex_flag bits */
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#define EX_LINKED 0x1
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struct netmsk {
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u_long nt_net;
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u_long nt_mask;
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char *nt_name;
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};
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union grouptypes {
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struct hostent *gt_hostent;
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struct netmsk gt_net;
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#ifdef ISO
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struct sockaddr_iso *gt_isoaddr;
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#endif
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};
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struct grouplist {
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int gr_type;
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union grouptypes gr_ptr;
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struct grouplist *gr_next;
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};
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/* Group types */
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#define GT_NULL 0x0
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#define GT_HOST 0x1
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#define GT_NET 0x2
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#define GT_ISO 0x4
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
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#define GT_IGNORE 0x5
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1994-05-26 06:35:07 +00:00
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struct hostlist {
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1995-06-27 11:07:30 +00:00
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int ht_flag; /* Uses DP_xx bits */
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1994-05-26 06:35:07 +00:00
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struct grouplist *ht_grp;
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struct hostlist *ht_next;
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};
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1995-06-27 11:07:30 +00:00
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struct fhreturn {
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int fhr_flag;
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int fhr_vers;
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nfsfh_t fhr_fh;
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};
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1994-05-26 06:35:07 +00:00
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/* Global defs */
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char *add_expdir __P((struct dirlist **, char *, int));
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void add_dlist __P((struct dirlist **, struct dirlist *,
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1995-06-27 11:07:30 +00:00
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struct grouplist *, int));
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1994-05-26 06:35:07 +00:00
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void add_mlist __P((char *, char *));
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int check_dirpath __P((char *));
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int check_options __P((struct dirlist *));
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1995-06-27 11:07:30 +00:00
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int chk_host __P((struct dirlist *, u_long, int *, int *));
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1994-05-26 06:35:07 +00:00
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void del_mlist __P((char *, char *));
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struct dirlist *dirp_search __P((struct dirlist *, char *));
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int do_mount __P((struct exportlist *, struct grouplist *, int,
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1995-06-27 11:07:30 +00:00
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struct ucred *, char *, int, struct statfs *));
|
1994-05-26 06:35:07 +00:00
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int do_opt __P((char **, char **, struct exportlist *, struct grouplist *,
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int *, int *, struct ucred *));
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struct exportlist *ex_search __P((fsid_t *));
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struct exportlist *get_exp __P((void));
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void free_dir __P((struct dirlist *));
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void free_exp __P((struct exportlist *));
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void free_grp __P((struct grouplist *));
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void free_host __P((struct hostlist *));
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void get_exportlist __P((void));
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
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int get_host __P((char *, struct grouplist *, struct grouplist *));
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1995-06-27 11:07:30 +00:00
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int get_num __P((char *));
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1994-05-26 06:35:07 +00:00
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struct hostlist *get_ht __P((void));
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int get_line __P((void));
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void get_mountlist __P((void));
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int get_net __P((char *, struct netmsk *, int));
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void getexp_err __P((struct exportlist *, struct grouplist *));
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struct grouplist *get_grp __P((void));
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void hang_dirp __P((struct dirlist *, struct grouplist *,
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struct exportlist *, int));
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void mntsrv __P((struct svc_req *, SVCXPRT *));
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void nextfield __P((char **, char **));
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void out_of_mem __P((void));
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void parsecred __P((char *, struct ucred *));
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int put_exlist __P((struct dirlist *, XDR *, struct dirlist *, int *));
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int scan_tree __P((struct dirlist *, u_long));
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void send_umntall __P((void));
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int umntall_each __P((caddr_t, struct sockaddr_in *));
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int xdr_dir __P((XDR *, char *));
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int xdr_explist __P((XDR *, caddr_t));
|
1995-06-27 11:07:30 +00:00
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int xdr_fhs __P((XDR *, caddr_t));
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1994-05-26 06:35:07 +00:00
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int xdr_mlist __P((XDR *, caddr_t));
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/* C library */
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int getnetgrent();
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void endnetgrent();
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void setnetgrent();
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#ifdef ISO
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struct iso_addr *iso_addr();
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#endif
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struct exportlist *exphead;
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struct mountlist *mlhead;
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struct grouplist *grphead;
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char exname[MAXPATHLEN];
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struct ucred def_anon = {
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1,
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(uid_t) -2,
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1,
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{ (gid_t) -2 }
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};
|
1997-04-22 10:37:27 +00:00
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int force_v2 = 0;
|
1995-06-27 11:07:30 +00:00
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int resvport_only = 1;
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int dir_only = 1;
|
1997-12-13 19:50:14 +00:00
|
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int log = 0;
|
1994-05-26 06:35:07 +00:00
|
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int opt_flags;
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/* Bits for above */
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#define OP_MAPROOT 0x01
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#define OP_MAPALL 0x02
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#define OP_KERB 0x04
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#define OP_MASK 0x08
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#define OP_NET 0x10
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#define OP_ISO 0x20
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#define OP_ALLDIRS 0x40
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#ifdef DEBUG
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int debug = 1;
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void SYSLOG __P((int, const char *, ...));
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#define syslog SYSLOG
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#else
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int debug = 0;
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|
#endif
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|
|
/*
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|
|
|
* Mountd server for NFS mount protocol as described in:
|
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|
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* NFS: Network File System Protocol Specification, RFC1094, Appendix A
|
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|
|
* The optional arguments are the exports file name
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|
|
* default: _PATH_EXPORTS
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|
|
* and "-n" to allow nonroot mount.
|
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*/
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|
|
int
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main(argc, argv)
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int argc;
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|
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char **argv;
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|
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{
|
1995-06-11 19:33:05 +00:00
|
|
|
SVCXPRT *udptransp, *tcptransp;
|
1994-05-26 06:35:07 +00:00
|
|
|
int c;
|
1997-04-01 14:15:30 +00:00
|
|
|
int mib[3];
|
1995-06-27 11:07:30 +00:00
|
|
|
#ifdef __FreeBSD__
|
1997-03-11 12:43:45 +00:00
|
|
|
struct vfsconf vfc;
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|
|
int error;
|
1994-09-22 22:17:02 +00:00
|
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|
|
1997-03-11 12:43:45 +00:00
|
|
|
error = getvfsbyname("nfs", &vfc);
|
|
|
|
if (error && vfsisloadable("nfs")) {
|
1994-09-22 22:17:02 +00:00
|
|
|
if(vfsload("nfs"))
|
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|
|
err(1, "vfsload(nfs)");
|
|
|
|
endvfsent(); /* flush cache */
|
1997-03-11 12:43:45 +00:00
|
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|
error = getvfsbyname("nfs", &vfc);
|
1994-09-22 22:17:02 +00:00
|
|
|
}
|
1997-03-11 12:43:45 +00:00
|
|
|
if (error)
|
1994-09-22 22:17:02 +00:00
|
|
|
errx(1, "NFS support is not available in the running kernel");
|
1995-06-27 11:07:30 +00:00
|
|
|
#endif /* __FreeBSD__ */
|
1994-05-26 06:35:07 +00:00
|
|
|
|
1997-12-10 20:33:59 +00:00
|
|
|
while ((c = getopt(argc, argv, "2dlnr")) != -1)
|
1994-05-26 06:35:07 +00:00
|
|
|
switch (c) {
|
1997-04-22 10:37:27 +00:00
|
|
|
case '2':
|
|
|
|
force_v2 = 1;
|
|
|
|
break;
|
1995-06-27 11:07:30 +00:00
|
|
|
case 'n':
|
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|
|
resvport_only = 0;
|
|
|
|
break;
|
|
|
|
case 'r':
|
|
|
|
dir_only = 0;
|
|
|
|
break;
|
1995-05-21 19:31:09 +00:00
|
|
|
case 'd':
|
|
|
|
debug = debug ? 0 : 1;
|
|
|
|
break;
|
1997-12-09 18:43:44 +00:00
|
|
|
case 'l':
|
|
|
|
log = 1;
|
|
|
|
break;
|
1994-05-26 06:35:07 +00:00
|
|
|
default:
|
1997-12-10 20:33:59 +00:00
|
|
|
fprintf(stderr,
|
|
|
|
"Usage: mountd [-d] [-l] [-r] [-n] [export_file]\n");
|
1994-05-26 06:35:07 +00:00
|
|
|
exit(1);
|
|
|
|
};
|
|
|
|
argc -= optind;
|
|
|
|
argv += optind;
|
|
|
|
grphead = (struct grouplist *)NULL;
|
|
|
|
exphead = (struct exportlist *)NULL;
|
|
|
|
mlhead = (struct mountlist *)NULL;
|
|
|
|
if (argc == 1) {
|
|
|
|
strncpy(exname, *argv, MAXPATHLEN-1);
|
|
|
|
exname[MAXPATHLEN-1] = '\0';
|
|
|
|
} else
|
|
|
|
strcpy(exname, _PATH_EXPORTS);
|
|
|
|
openlog("mountd", LOG_PID, LOG_DAEMON);
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Getting export list.\n");
|
|
|
|
get_exportlist();
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Getting mount list.\n");
|
|
|
|
get_mountlist();
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Here we go.\n");
|
|
|
|
if (debug == 0) {
|
|
|
|
daemon(0, 0);
|
|
|
|
signal(SIGINT, SIG_IGN);
|
|
|
|
signal(SIGQUIT, SIG_IGN);
|
|
|
|
}
|
|
|
|
signal(SIGHUP, (void (*) __P((int))) get_exportlist);
|
|
|
|
signal(SIGTERM, (void (*) __P((int))) send_umntall);
|
|
|
|
{ FILE *pidfile = fopen(_PATH_MOUNTDPID, "w");
|
|
|
|
if (pidfile != NULL) {
|
|
|
|
fprintf(pidfile, "%d\n", getpid());
|
|
|
|
fclose(pidfile);
|
|
|
|
}
|
|
|
|
}
|
1997-03-27 20:01:07 +00:00
|
|
|
|
1997-04-09 20:17:15 +00:00
|
|
|
if (!resvport_only) {
|
|
|
|
mib[0] = CTL_VFS;
|
|
|
|
mib[1] = MOUNT_NFS;
|
|
|
|
mib[2] = NFS_NFSPRIVPORT;
|
|
|
|
if (sysctl(mib, 3, NULL, NULL, &resvport_only,
|
|
|
|
sizeof(resvport_only)) != 0 && errno != ENOENT) {
|
|
|
|
syslog(LOG_ERR, "sysctl: %m");
|
|
|
|
exit(1);
|
|
|
|
}
|
1997-03-27 20:01:07 +00:00
|
|
|
}
|
|
|
|
|
1995-06-11 19:33:05 +00:00
|
|
|
if ((udptransp = svcudp_create(RPC_ANYSOCK)) == NULL ||
|
|
|
|
(tcptransp = svctcp_create(RPC_ANYSOCK, 0, 0)) == NULL) {
|
1994-05-26 06:35:07 +00:00
|
|
|
syslog(LOG_ERR, "Can't create socket");
|
|
|
|
exit(1);
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
pmap_unset(RPCPROG_MNT, 1);
|
|
|
|
pmap_unset(RPCPROG_MNT, 3);
|
1997-04-22 10:37:27 +00:00
|
|
|
if (!force_v2)
|
|
|
|
if (!svc_register(udptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_UDP) ||
|
|
|
|
!svc_register(tcptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_TCP)) {
|
|
|
|
syslog(LOG_ERR, "Can't register mount");
|
|
|
|
exit(1);
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
if (!svc_register(udptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_UDP) ||
|
1997-04-22 10:37:27 +00:00
|
|
|
!svc_register(tcptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_TCP)) {
|
1994-05-26 06:35:07 +00:00
|
|
|
syslog(LOG_ERR, "Can't register mount");
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
svc_run();
|
|
|
|
syslog(LOG_ERR, "Mountd died");
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The mount rpc service
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
mntsrv(rqstp, transp)
|
|
|
|
struct svc_req *rqstp;
|
|
|
|
SVCXPRT *transp;
|
|
|
|
{
|
|
|
|
struct exportlist *ep;
|
|
|
|
struct dirlist *dp;
|
1995-06-27 11:07:30 +00:00
|
|
|
struct fhreturn fhr;
|
1994-05-26 06:35:07 +00:00
|
|
|
struct stat stb;
|
|
|
|
struct statfs fsb;
|
|
|
|
struct hostent *hp;
|
1997-12-09 18:43:44 +00:00
|
|
|
struct in_addr saddrin;
|
1994-05-26 06:35:07 +00:00
|
|
|
u_long saddr;
|
1995-06-27 11:07:30 +00:00
|
|
|
u_short sport;
|
1997-03-11 12:43:45 +00:00
|
|
|
char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN];
|
1997-08-29 19:22:28 +00:00
|
|
|
int bad = 0, defset, hostset;
|
1995-06-27 11:07:30 +00:00
|
|
|
sigset_t sighup_mask;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
1995-06-27 11:07:30 +00:00
|
|
|
sigemptyset(&sighup_mask);
|
|
|
|
sigaddset(&sighup_mask, SIGHUP);
|
1994-05-26 06:35:07 +00:00
|
|
|
saddr = transp->xp_raddr.sin_addr.s_addr;
|
1997-12-09 18:43:44 +00:00
|
|
|
saddrin = transp->xp_raddr.sin_addr;
|
1995-06-27 11:07:30 +00:00
|
|
|
sport = ntohs(transp->xp_raddr.sin_port);
|
1994-05-26 06:35:07 +00:00
|
|
|
hp = (struct hostent *)NULL;
|
|
|
|
switch (rqstp->rq_proc) {
|
|
|
|
case NULLPROC:
|
|
|
|
if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
|
|
|
return;
|
|
|
|
case RPCMNT_MOUNT:
|
1995-06-27 11:07:30 +00:00
|
|
|
if (sport >= IPPORT_RESERVED && resvport_only) {
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"mount request from %s from unprivileged port",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
svcerr_weakauth(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (!svc_getargs(transp, xdr_dir, rpcpath)) {
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE, "undecodable mount request from %s",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
svcerr_decode(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get the real pathname and make sure it is a directory
|
1995-06-27 11:07:30 +00:00
|
|
|
* or a regular file if the -r option was specified
|
|
|
|
* and it exists.
|
1994-05-26 06:35:07 +00:00
|
|
|
*/
|
|
|
|
if (realpath(rpcpath, dirpath) == 0 ||
|
|
|
|
stat(dirpath, &stb) < 0 ||
|
1995-06-27 11:07:30 +00:00
|
|
|
(!S_ISDIR(stb.st_mode) &&
|
|
|
|
(dir_only || !S_ISREG(stb.st_mode))) ||
|
1994-05-26 06:35:07 +00:00
|
|
|
statfs(dirpath, &fsb) < 0) {
|
|
|
|
chdir("/"); /* Just in case realpath doesn't */
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"mount request from %s for non existant path %s",
|
|
|
|
inet_ntoa(saddrin), dirpath);
|
1994-05-26 06:35:07 +00:00
|
|
|
if (debug)
|
|
|
|
fprintf(stderr, "stat failed on %s\n", dirpath);
|
1997-08-29 19:22:28 +00:00
|
|
|
bad = ENOENT; /* We will send error reply later */
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Check in the exports list */
|
1995-06-27 11:07:30 +00:00
|
|
|
sigprocmask(SIG_BLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
ep = ex_search(&fsb.f_fsid);
|
1995-06-27 11:07:30 +00:00
|
|
|
hostset = defset = 0;
|
|
|
|
if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) ||
|
1994-05-26 06:35:07 +00:00
|
|
|
((dp = dirp_search(ep->ex_dirl, dirpath)) &&
|
1995-06-27 11:07:30 +00:00
|
|
|
chk_host(dp, saddr, &defset, &hostset)) ||
|
1994-05-26 06:35:07 +00:00
|
|
|
(defset && scan_tree(ep->ex_defdir, saddr) == 0 &&
|
|
|
|
scan_tree(ep->ex_dirl, saddr) == 0))) {
|
1997-08-29 19:22:28 +00:00
|
|
|
if (bad) {
|
|
|
|
if (!svc_sendreply(transp, xdr_long,
|
|
|
|
(caddr_t)&bad))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
|
|
|
sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
|
|
|
|
return;
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
if (hostset & DP_HOSTSET)
|
|
|
|
fhr.fhr_flag = hostset;
|
|
|
|
else
|
|
|
|
fhr.fhr_flag = defset;
|
|
|
|
fhr.fhr_vers = rqstp->rq_vers;
|
1994-05-26 06:35:07 +00:00
|
|
|
/* Get the file handle */
|
1997-03-11 12:43:45 +00:00
|
|
|
memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t));
|
1995-06-27 11:07:30 +00:00
|
|
|
if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) {
|
1994-05-26 06:35:07 +00:00
|
|
|
bad = errno;
|
|
|
|
syslog(LOG_ERR, "Can't get fh for %s", dirpath);
|
|
|
|
if (!svc_sendreply(transp, xdr_long,
|
|
|
|
(caddr_t)&bad))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
1995-06-27 11:07:30 +00:00
|
|
|
sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&fhr))
|
1994-05-26 06:35:07 +00:00
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
|
|
|
if (hp == NULL)
|
|
|
|
hp = gethostbyaddr((caddr_t)&saddr,
|
|
|
|
sizeof(saddr), AF_INET);
|
|
|
|
if (hp)
|
|
|
|
add_mlist(hp->h_name, dirpath);
|
|
|
|
else
|
1997-12-09 18:43:44 +00:00
|
|
|
add_mlist(inet_ntoa(saddrin),
|
1994-05-26 06:35:07 +00:00
|
|
|
dirpath);
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Mount successfull.\n");
|
1997-12-09 18:43:44 +00:00
|
|
|
if (log)
|
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"mount request succeeded from %s for %s",
|
|
|
|
inet_ntoa(saddrin), dirpath);
|
|
|
|
} else {
|
1994-05-26 06:35:07 +00:00
|
|
|
bad = EACCES;
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"mount request denied from %s for %s",
|
|
|
|
inet_ntoa(saddrin), dirpath);
|
|
|
|
}
|
1997-08-29 19:22:28 +00:00
|
|
|
|
|
|
|
if (bad && !svc_sendreply(transp, xdr_long, (caddr_t)&bad))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
1995-06-27 11:07:30 +00:00
|
|
|
sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
case RPCMNT_DUMP:
|
|
|
|
if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
1997-12-09 18:43:44 +00:00
|
|
|
else if (log)
|
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"dump request succeeded from %s",
|
|
|
|
inet_ntoa(saddrin), dirpath);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
case RPCMNT_UMOUNT:
|
1995-06-27 11:07:30 +00:00
|
|
|
if (sport >= IPPORT_RESERVED && resvport_only) {
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"umount request from %s from unprivileged port",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
svcerr_weakauth(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (!svc_getargs(transp, xdr_dir, dirpath)) {
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE, "undecodable umount request from %s",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
svcerr_decode(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
|
|
|
hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET);
|
|
|
|
if (hp)
|
|
|
|
del_mlist(hp->h_name, dirpath);
|
1997-12-09 18:43:44 +00:00
|
|
|
del_mlist(inet_ntoa(saddrin), dirpath);
|
|
|
|
if (log)
|
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"umount request succeeded from %s for %s",
|
|
|
|
inet_ntoa(saddrin), dirpath);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
case RPCMNT_UMNTALL:
|
1995-06-27 11:07:30 +00:00
|
|
|
if (sport >= IPPORT_RESERVED && resvport_only) {
|
1997-12-09 18:43:44 +00:00
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"umountall request from %s from unprivileged port",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
svcerr_weakauth(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
|
|
|
hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET);
|
|
|
|
if (hp)
|
|
|
|
del_mlist(hp->h_name, (char *)NULL);
|
1997-12-09 18:43:44 +00:00
|
|
|
del_mlist(inet_ntoa(saddrin), (char *)NULL);
|
|
|
|
if (log)
|
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"umountall request succeeded from %s",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
case RPCMNT_EXPORT:
|
|
|
|
if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL))
|
|
|
|
syslog(LOG_ERR, "Can't send reply");
|
1997-12-09 18:43:44 +00:00
|
|
|
if (log)
|
|
|
|
syslog(LOG_NOTICE,
|
|
|
|
"export request succeeded from %s",
|
|
|
|
inet_ntoa(saddrin));
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
default:
|
|
|
|
svcerr_noproc(transp);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Xdr conversion for a dirpath string
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
xdr_dir(xdrsp, dirp)
|
|
|
|
XDR *xdrsp;
|
|
|
|
char *dirp;
|
|
|
|
{
|
|
|
|
return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
1995-06-27 11:07:30 +00:00
|
|
|
* Xdr routine to generate file handle reply
|
1994-05-26 06:35:07 +00:00
|
|
|
*/
|
|
|
|
int
|
1995-06-27 11:07:30 +00:00
|
|
|
xdr_fhs(xdrsp, cp)
|
1994-05-26 06:35:07 +00:00
|
|
|
XDR *xdrsp;
|
1995-06-27 11:07:30 +00:00
|
|
|
caddr_t cp;
|
1994-05-26 06:35:07 +00:00
|
|
|
{
|
1995-06-27 11:07:30 +00:00
|
|
|
register struct fhreturn *fhrp = (struct fhreturn *)cp;
|
|
|
|
u_long ok = 0, len, auth;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
|
|
|
if (!xdr_long(xdrsp, &ok))
|
|
|
|
return (0);
|
1995-06-27 11:07:30 +00:00
|
|
|
switch (fhrp->fhr_vers) {
|
|
|
|
case 1:
|
|
|
|
return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH));
|
|
|
|
case 3:
|
|
|
|
len = NFSX_V3FH;
|
|
|
|
if (!xdr_long(xdrsp, &len))
|
|
|
|
return (0);
|
|
|
|
if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len))
|
|
|
|
return (0);
|
|
|
|
if (fhrp->fhr_flag & DP_KERB)
|
|
|
|
auth = RPCAUTH_KERB4;
|
|
|
|
else
|
|
|
|
auth = RPCAUTH_UNIX;
|
|
|
|
len = 1;
|
|
|
|
if (!xdr_long(xdrsp, &len))
|
|
|
|
return (0);
|
|
|
|
return (xdr_long(xdrsp, &auth));
|
|
|
|
};
|
|
|
|
return (0);
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
xdr_mlist(xdrsp, cp)
|
|
|
|
XDR *xdrsp;
|
|
|
|
caddr_t cp;
|
|
|
|
{
|
|
|
|
struct mountlist *mlp;
|
|
|
|
int true = 1;
|
|
|
|
int false = 0;
|
|
|
|
char *strp;
|
|
|
|
|
|
|
|
mlp = mlhead;
|
|
|
|
while (mlp) {
|
|
|
|
if (!xdr_bool(xdrsp, &true))
|
|
|
|
return (0);
|
|
|
|
strp = &mlp->ml_host[0];
|
|
|
|
if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
|
|
|
|
return (0);
|
|
|
|
strp = &mlp->ml_dirp[0];
|
|
|
|
if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
|
|
|
|
return (0);
|
|
|
|
mlp = mlp->ml_next;
|
|
|
|
}
|
|
|
|
if (!xdr_bool(xdrsp, &false))
|
|
|
|
return (0);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Xdr conversion for export list
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
xdr_explist(xdrsp, cp)
|
|
|
|
XDR *xdrsp;
|
|
|
|
caddr_t cp;
|
|
|
|
{
|
|
|
|
struct exportlist *ep;
|
|
|
|
int false = 0;
|
1995-06-27 11:07:30 +00:00
|
|
|
int putdef;
|
|
|
|
sigset_t sighup_mask;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
1995-06-27 11:07:30 +00:00
|
|
|
sigemptyset(&sighup_mask);
|
|
|
|
sigaddset(&sighup_mask, SIGHUP);
|
|
|
|
sigprocmask(SIG_BLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
ep = exphead;
|
|
|
|
while (ep) {
|
|
|
|
putdef = 0;
|
|
|
|
if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef))
|
|
|
|
goto errout;
|
|
|
|
if (ep->ex_defdir && putdef == 0 &&
|
|
|
|
put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL,
|
|
|
|
&putdef))
|
|
|
|
goto errout;
|
|
|
|
ep = ep->ex_next;
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
if (!xdr_bool(xdrsp, &false))
|
|
|
|
return (0);
|
|
|
|
return (1);
|
|
|
|
errout:
|
1995-06-27 11:07:30 +00:00
|
|
|
sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Called from xdr_explist() to traverse the tree and export the
|
|
|
|
* directory paths.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
put_exlist(dp, xdrsp, adp, putdefp)
|
|
|
|
struct dirlist *dp;
|
|
|
|
XDR *xdrsp;
|
|
|
|
struct dirlist *adp;
|
|
|
|
int *putdefp;
|
|
|
|
{
|
|
|
|
struct grouplist *grp;
|
|
|
|
struct hostlist *hp;
|
|
|
|
int true = 1;
|
|
|
|
int false = 0;
|
|
|
|
int gotalldir = 0;
|
|
|
|
char *strp;
|
|
|
|
|
|
|
|
if (dp) {
|
|
|
|
if (put_exlist(dp->dp_left, xdrsp, adp, putdefp))
|
|
|
|
return (1);
|
|
|
|
if (!xdr_bool(xdrsp, &true))
|
|
|
|
return (1);
|
|
|
|
strp = dp->dp_dirp;
|
|
|
|
if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
|
|
|
|
return (1);
|
|
|
|
if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) {
|
|
|
|
gotalldir = 1;
|
|
|
|
*putdefp = 1;
|
|
|
|
}
|
|
|
|
if ((dp->dp_flag & DP_DEFSET) == 0 &&
|
|
|
|
(gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) {
|
|
|
|
hp = dp->dp_hosts;
|
|
|
|
while (hp) {
|
|
|
|
grp = hp->ht_grp;
|
|
|
|
if (grp->gr_type == GT_HOST) {
|
|
|
|
if (!xdr_bool(xdrsp, &true))
|
|
|
|
return (1);
|
|
|
|
strp = grp->gr_ptr.gt_hostent->h_name;
|
1995-05-30 06:12:45 +00:00
|
|
|
if (!xdr_string(xdrsp, &strp,
|
1994-05-26 06:35:07 +00:00
|
|
|
RPCMNT_NAMELEN))
|
|
|
|
return (1);
|
|
|
|
} else if (grp->gr_type == GT_NET) {
|
|
|
|
if (!xdr_bool(xdrsp, &true))
|
|
|
|
return (1);
|
|
|
|
strp = grp->gr_ptr.gt_net.nt_name;
|
1995-05-30 06:12:45 +00:00
|
|
|
if (!xdr_string(xdrsp, &strp,
|
1994-05-26 06:35:07 +00:00
|
|
|
RPCMNT_NAMELEN))
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
hp = hp->ht_next;
|
|
|
|
if (gotalldir && hp == (struct hostlist *)NULL) {
|
|
|
|
hp = adp->dp_hosts;
|
|
|
|
gotalldir = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!xdr_bool(xdrsp, &false))
|
|
|
|
return (1);
|
|
|
|
if (put_exlist(dp->dp_right, xdrsp, adp, putdefp))
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define LINESIZ 10240
|
|
|
|
char line[LINESIZ];
|
|
|
|
FILE *exp_file;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get the export list
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
get_exportlist()
|
|
|
|
{
|
|
|
|
struct exportlist *ep, *ep2;
|
|
|
|
struct grouplist *grp, *tgrp;
|
|
|
|
struct exportlist **epp;
|
|
|
|
struct dirlist *dirhead;
|
|
|
|
struct statfs fsb, *fsp;
|
|
|
|
struct hostent *hpe;
|
|
|
|
struct ucred anon;
|
|
|
|
char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc;
|
|
|
|
int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* First, get rid of the old list
|
|
|
|
*/
|
|
|
|
ep = exphead;
|
|
|
|
while (ep) {
|
|
|
|
ep2 = ep;
|
|
|
|
ep = ep->ex_next;
|
|
|
|
free_exp(ep2);
|
|
|
|
}
|
|
|
|
exphead = (struct exportlist *)NULL;
|
|
|
|
|
|
|
|
grp = grphead;
|
|
|
|
while (grp) {
|
|
|
|
tgrp = grp;
|
|
|
|
grp = grp->gr_next;
|
|
|
|
free_grp(tgrp);
|
|
|
|
}
|
|
|
|
grphead = (struct grouplist *)NULL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* And delete exports that are in the kernel for all local
|
|
|
|
* file systems.
|
|
|
|
* XXX: Should know how to handle all local exportable file systems
|
1997-03-11 12:43:45 +00:00
|
|
|
* instead of just "ufs".
|
1994-05-26 06:35:07 +00:00
|
|
|
*/
|
|
|
|
num = getmntinfo(&fsp, MNT_NOWAIT);
|
|
|
|
for (i = 0; i < num; i++) {
|
|
|
|
union {
|
|
|
|
struct ufs_args ua;
|
|
|
|
struct iso_args ia;
|
|
|
|
struct mfs_args ma;
|
1995-06-27 11:07:30 +00:00
|
|
|
struct msdosfs_args da;
|
|
|
|
} targs;
|
|
|
|
|
1997-03-11 12:43:45 +00:00
|
|
|
if (!strcmp(fsp->f_fstypename, "mfs") ||
|
|
|
|
!strcmp(fsp->f_fstypename, "ufs") ||
|
|
|
|
!strcmp(fsp->f_fstypename, "msdos") ||
|
|
|
|
!strcmp(fsp->f_fstypename, "cd9660")) {
|
1995-06-27 11:07:30 +00:00
|
|
|
targs.ua.fspec = NULL;
|
|
|
|
targs.ua.export.ex_flags = MNT_DELEXPORT;
|
|
|
|
if (mount(fsp->f_fstypename, fsp->f_mntonname,
|
1994-05-26 06:35:07 +00:00
|
|
|
fsp->f_flags | MNT_UPDATE,
|
|
|
|
(caddr_t)&targs) < 0)
|
|
|
|
syslog(LOG_ERR, "Can't delete exports for %s",
|
|
|
|
fsp->f_mntonname);
|
|
|
|
}
|
|
|
|
fsp++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Read in the exports file and build the list, calling
|
|
|
|
* mount() as we go along to push the export rules into the kernel.
|
|
|
|
*/
|
|
|
|
if ((exp_file = fopen(exname, "r")) == NULL) {
|
|
|
|
syslog(LOG_ERR, "Can't open %s", exname);
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
dirhead = (struct dirlist *)NULL;
|
|
|
|
while (get_line()) {
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Got line %s\n",line);
|
|
|
|
cp = line;
|
|
|
|
nextfield(&cp, &endcp);
|
|
|
|
if (*cp == '#')
|
|
|
|
goto nextline;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set defaults.
|
|
|
|
*/
|
|
|
|
has_host = FALSE;
|
|
|
|
anon = def_anon;
|
|
|
|
exflags = MNT_EXPORTED;
|
|
|
|
got_nondir = 0;
|
|
|
|
opt_flags = 0;
|
|
|
|
ep = (struct exportlist *)NULL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Create new exports list entry
|
|
|
|
*/
|
|
|
|
len = endcp-cp;
|
|
|
|
tgrp = grp = get_grp();
|
|
|
|
while (len > 0) {
|
|
|
|
if (len > RPCMNT_NAMELEN) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
if (*cp == '-') {
|
|
|
|
if (ep == (struct exportlist *)NULL) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr, "doing opt %s\n", cp);
|
|
|
|
got_nondir = 1;
|
|
|
|
if (do_opt(&cp, &endcp, ep, grp, &has_host,
|
|
|
|
&exflags, &anon)) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
} else if (*cp == '/') {
|
|
|
|
savedc = *endcp;
|
|
|
|
*endcp = '\0';
|
|
|
|
if (check_dirpath(cp) &&
|
|
|
|
statfs(cp, &fsb) >= 0) {
|
|
|
|
if (got_nondir) {
|
|
|
|
syslog(LOG_ERR, "Dirs must be first");
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
if (ep) {
|
|
|
|
if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] ||
|
|
|
|
ep->ex_fs.val[1] != fsb.f_fsid.val[1]) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* See if this directory is already
|
|
|
|
* in the list.
|
|
|
|
*/
|
|
|
|
ep = ex_search(&fsb.f_fsid);
|
|
|
|
if (ep == (struct exportlist *)NULL) {
|
|
|
|
ep = get_exp();
|
|
|
|
ep->ex_fs = fsb.f_fsid;
|
|
|
|
ep->ex_fsdir = (char *)
|
|
|
|
malloc(strlen(fsb.f_mntonname) + 1);
|
|
|
|
if (ep->ex_fsdir)
|
|
|
|
strcpy(ep->ex_fsdir,
|
|
|
|
fsb.f_mntonname);
|
|
|
|
else
|
|
|
|
out_of_mem();
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,
|
|
|
|
"Making new ep fs=0x%x,0x%x\n",
|
|
|
|
fsb.f_fsid.val[0],
|
|
|
|
fsb.f_fsid.val[1]);
|
|
|
|
} else if (debug)
|
|
|
|
fprintf(stderr,
|
|
|
|
"Found ep fs=0x%x,0x%x\n",
|
|
|
|
fsb.f_fsid.val[0],
|
|
|
|
fsb.f_fsid.val[1]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add dirpath to export mount point.
|
|
|
|
*/
|
|
|
|
dirp = add_expdir(&dirhead, cp, len);
|
|
|
|
dirplen = len;
|
|
|
|
} else {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
*endcp = savedc;
|
|
|
|
} else {
|
|
|
|
savedc = *endcp;
|
|
|
|
*endcp = '\0';
|
|
|
|
got_nondir = 1;
|
|
|
|
if (ep == (struct exportlist *)NULL) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get the host or netgroup.
|
|
|
|
*/
|
|
|
|
setnetgrent(cp);
|
|
|
|
netgrp = getnetgrent(&hst, &usr, &dom);
|
|
|
|
do {
|
|
|
|
if (has_host) {
|
|
|
|
grp->gr_next = get_grp();
|
|
|
|
grp = grp->gr_next;
|
|
|
|
}
|
|
|
|
if (netgrp) {
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
if (get_host(hst, grp, tgrp)) {
|
1997-09-12 16:25:24 +00:00
|
|
|
syslog(LOG_ERR, "Bad host %s in netgroup %s, skipping", hst, cp);
|
|
|
|
grp->gr_type = GT_IGNORE;
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
} else if (get_host(cp, grp, tgrp)) {
|
1997-09-12 16:25:24 +00:00
|
|
|
syslog(LOG_ERR, "Bad host %s, skipping", cp);
|
|
|
|
grp->gr_type = GT_IGNORE;
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
has_host = TRUE;
|
|
|
|
} while (netgrp && getnetgrent(&hst, &usr, &dom));
|
|
|
|
endnetgrent();
|
|
|
|
*endcp = savedc;
|
|
|
|
}
|
|
|
|
cp = endcp;
|
|
|
|
nextfield(&cp, &endcp);
|
|
|
|
len = endcp - cp;
|
|
|
|
}
|
|
|
|
if (check_options(dirhead)) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
if (!has_host) {
|
|
|
|
grp->gr_type = GT_HOST;
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"Adding a default entry\n");
|
|
|
|
/* add a default group and make the grp list NULL */
|
|
|
|
hpe = (struct hostent *)malloc(sizeof(struct hostent));
|
|
|
|
if (hpe == (struct hostent *)NULL)
|
|
|
|
out_of_mem();
|
1995-11-17 23:22:34 +00:00
|
|
|
hpe->h_name = strdup("Default");
|
1994-05-26 06:35:07 +00:00
|
|
|
hpe->h_addrtype = AF_INET;
|
|
|
|
hpe->h_length = sizeof (u_long);
|
|
|
|
hpe->h_addr_list = (char **)NULL;
|
|
|
|
grp->gr_ptr.gt_hostent = hpe;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Don't allow a network export coincide with a list of
|
|
|
|
* host(s) on the same line.
|
|
|
|
*/
|
|
|
|
} else if ((opt_flags & OP_NET) && tgrp->gr_next) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
1997-09-12 16:25:24 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If an export list was specified on this line, make sure
|
|
|
|
* that we have at least one valid entry, otherwise skip it.
|
|
|
|
*/
|
|
|
|
} else {
|
|
|
|
grp = tgrp;
|
|
|
|
while (grp && grp->gr_type == GT_IGNORE)
|
|
|
|
grp = grp->gr_next;
|
|
|
|
if (! grp) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Loop through hosts, pushing the exports into the kernel.
|
|
|
|
* After loop, tgrp points to the start of the list and
|
|
|
|
* grp points to the last entry in the list.
|
|
|
|
*/
|
|
|
|
grp = tgrp;
|
|
|
|
do {
|
|
|
|
if (do_mount(ep, grp, exflags, &anon, dirp,
|
|
|
|
dirplen, &fsb)) {
|
|
|
|
getexp_err(ep, tgrp);
|
|
|
|
goto nextline;
|
|
|
|
}
|
|
|
|
} while (grp->gr_next && (grp = grp->gr_next));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Success. Update the data structures.
|
|
|
|
*/
|
|
|
|
if (has_host) {
|
1995-06-27 11:07:30 +00:00
|
|
|
hang_dirp(dirhead, tgrp, ep, opt_flags);
|
1994-05-26 06:35:07 +00:00
|
|
|
grp->gr_next = grphead;
|
|
|
|
grphead = tgrp;
|
|
|
|
} else {
|
|
|
|
hang_dirp(dirhead, (struct grouplist *)NULL, ep,
|
1995-06-27 11:07:30 +00:00
|
|
|
opt_flags);
|
1994-05-26 06:35:07 +00:00
|
|
|
free_grp(grp);
|
|
|
|
}
|
|
|
|
dirhead = (struct dirlist *)NULL;
|
|
|
|
if ((ep->ex_flag & EX_LINKED) == 0) {
|
|
|
|
ep2 = exphead;
|
|
|
|
epp = &exphead;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Insert in the list in alphabetical order.
|
|
|
|
*/
|
|
|
|
while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) {
|
|
|
|
epp = &ep2->ex_next;
|
|
|
|
ep2 = ep2->ex_next;
|
|
|
|
}
|
|
|
|
if (ep2)
|
|
|
|
ep->ex_next = ep2;
|
|
|
|
*epp = ep;
|
|
|
|
ep->ex_flag |= EX_LINKED;
|
|
|
|
}
|
|
|
|
nextline:
|
|
|
|
if (dirhead) {
|
|
|
|
free_dir(dirhead);
|
|
|
|
dirhead = (struct dirlist *)NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
fclose(exp_file);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate an export list element
|
|
|
|
*/
|
|
|
|
struct exportlist *
|
|
|
|
get_exp()
|
|
|
|
{
|
|
|
|
struct exportlist *ep;
|
|
|
|
|
|
|
|
ep = (struct exportlist *)malloc(sizeof (struct exportlist));
|
|
|
|
if (ep == (struct exportlist *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memset(ep, 0, sizeof(struct exportlist));
|
1994-05-26 06:35:07 +00:00
|
|
|
return (ep);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate a group list element
|
|
|
|
*/
|
|
|
|
struct grouplist *
|
|
|
|
get_grp()
|
|
|
|
{
|
|
|
|
struct grouplist *gp;
|
|
|
|
|
|
|
|
gp = (struct grouplist *)malloc(sizeof (struct grouplist));
|
|
|
|
if (gp == (struct grouplist *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memset(gp, 0, sizeof(struct grouplist));
|
1994-05-26 06:35:07 +00:00
|
|
|
return (gp);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Clean up upon an error in get_exportlist().
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
getexp_err(ep, grp)
|
|
|
|
struct exportlist *ep;
|
|
|
|
struct grouplist *grp;
|
|
|
|
{
|
|
|
|
struct grouplist *tgrp;
|
|
|
|
|
|
|
|
syslog(LOG_ERR, "Bad exports list line %s", line);
|
|
|
|
if (ep && (ep->ex_flag & EX_LINKED) == 0)
|
|
|
|
free_exp(ep);
|
|
|
|
while (grp) {
|
|
|
|
tgrp = grp;
|
|
|
|
grp = grp->gr_next;
|
|
|
|
free_grp(tgrp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Search the export list for a matching fs.
|
|
|
|
*/
|
|
|
|
struct exportlist *
|
|
|
|
ex_search(fsid)
|
|
|
|
fsid_t *fsid;
|
|
|
|
{
|
|
|
|
struct exportlist *ep;
|
|
|
|
|
|
|
|
ep = exphead;
|
|
|
|
while (ep) {
|
|
|
|
if (ep->ex_fs.val[0] == fsid->val[0] &&
|
|
|
|
ep->ex_fs.val[1] == fsid->val[1])
|
|
|
|
return (ep);
|
|
|
|
ep = ep->ex_next;
|
|
|
|
}
|
|
|
|
return (ep);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Add a directory path to the list.
|
|
|
|
*/
|
|
|
|
char *
|
|
|
|
add_expdir(dpp, cp, len)
|
|
|
|
struct dirlist **dpp;
|
|
|
|
char *cp;
|
|
|
|
int len;
|
|
|
|
{
|
|
|
|
struct dirlist *dp;
|
|
|
|
|
|
|
|
dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len);
|
|
|
|
dp->dp_left = *dpp;
|
|
|
|
dp->dp_right = (struct dirlist *)NULL;
|
|
|
|
dp->dp_flag = 0;
|
|
|
|
dp->dp_hosts = (struct hostlist *)NULL;
|
|
|
|
strcpy(dp->dp_dirp, cp);
|
|
|
|
*dpp = dp;
|
|
|
|
return (dp->dp_dirp);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Hang the dir list element off the dirpath binary tree as required
|
|
|
|
* and update the entry for host.
|
|
|
|
*/
|
|
|
|
void
|
1995-06-27 11:07:30 +00:00
|
|
|
hang_dirp(dp, grp, ep, flags)
|
1994-05-26 06:35:07 +00:00
|
|
|
struct dirlist *dp;
|
|
|
|
struct grouplist *grp;
|
|
|
|
struct exportlist *ep;
|
1995-06-27 11:07:30 +00:00
|
|
|
int flags;
|
1994-05-26 06:35:07 +00:00
|
|
|
{
|
|
|
|
struct hostlist *hp;
|
|
|
|
struct dirlist *dp2;
|
|
|
|
|
1995-06-27 11:07:30 +00:00
|
|
|
if (flags & OP_ALLDIRS) {
|
1994-05-26 06:35:07 +00:00
|
|
|
if (ep->ex_defdir)
|
|
|
|
free((caddr_t)dp);
|
|
|
|
else
|
|
|
|
ep->ex_defdir = dp;
|
1995-06-27 11:07:30 +00:00
|
|
|
if (grp == (struct grouplist *)NULL) {
|
1994-05-26 06:35:07 +00:00
|
|
|
ep->ex_defdir->dp_flag |= DP_DEFSET;
|
1995-06-27 11:07:30 +00:00
|
|
|
if (flags & OP_KERB)
|
|
|
|
ep->ex_defdir->dp_flag |= DP_KERB;
|
|
|
|
} else while (grp) {
|
1994-05-26 06:35:07 +00:00
|
|
|
hp = get_ht();
|
1995-06-27 11:07:30 +00:00
|
|
|
if (flags & OP_KERB)
|
|
|
|
hp->ht_flag |= DP_KERB;
|
1994-05-26 06:35:07 +00:00
|
|
|
hp->ht_grp = grp;
|
|
|
|
hp->ht_next = ep->ex_defdir->dp_hosts;
|
|
|
|
ep->ex_defdir->dp_hosts = hp;
|
|
|
|
grp = grp->gr_next;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Loop throught the directories adding them to the tree.
|
|
|
|
*/
|
|
|
|
while (dp) {
|
|
|
|
dp2 = dp->dp_left;
|
1995-06-27 11:07:30 +00:00
|
|
|
add_dlist(&ep->ex_dirl, dp, grp, flags);
|
1994-05-26 06:35:07 +00:00
|
|
|
dp = dp2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Traverse the binary tree either updating a node that is already there
|
|
|
|
* for the new directory or adding the new node.
|
|
|
|
*/
|
|
|
|
void
|
1995-06-27 11:07:30 +00:00
|
|
|
add_dlist(dpp, newdp, grp, flags)
|
1994-05-26 06:35:07 +00:00
|
|
|
struct dirlist **dpp;
|
|
|
|
struct dirlist *newdp;
|
|
|
|
struct grouplist *grp;
|
1995-06-27 11:07:30 +00:00
|
|
|
int flags;
|
1994-05-26 06:35:07 +00:00
|
|
|
{
|
|
|
|
struct dirlist *dp;
|
|
|
|
struct hostlist *hp;
|
|
|
|
int cmp;
|
|
|
|
|
|
|
|
dp = *dpp;
|
|
|
|
if (dp) {
|
|
|
|
cmp = strcmp(dp->dp_dirp, newdp->dp_dirp);
|
|
|
|
if (cmp > 0) {
|
1995-06-27 11:07:30 +00:00
|
|
|
add_dlist(&dp->dp_left, newdp, grp, flags);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
} else if (cmp < 0) {
|
1995-06-27 11:07:30 +00:00
|
|
|
add_dlist(&dp->dp_right, newdp, grp, flags);
|
1994-05-26 06:35:07 +00:00
|
|
|
return;
|
|
|
|
} else
|
|
|
|
free((caddr_t)newdp);
|
|
|
|
} else {
|
|
|
|
dp = newdp;
|
|
|
|
dp->dp_left = (struct dirlist *)NULL;
|
|
|
|
*dpp = dp;
|
|
|
|
}
|
|
|
|
if (grp) {
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Hang all of the host(s) off of the directory point.
|
|
|
|
*/
|
|
|
|
do {
|
|
|
|
hp = get_ht();
|
1995-06-27 11:07:30 +00:00
|
|
|
if (flags & OP_KERB)
|
|
|
|
hp->ht_flag |= DP_KERB;
|
1994-05-26 06:35:07 +00:00
|
|
|
hp->ht_grp = grp;
|
|
|
|
hp->ht_next = dp->dp_hosts;
|
|
|
|
dp->dp_hosts = hp;
|
|
|
|
grp = grp->gr_next;
|
|
|
|
} while (grp);
|
1995-06-27 11:07:30 +00:00
|
|
|
} else {
|
1994-05-26 06:35:07 +00:00
|
|
|
dp->dp_flag |= DP_DEFSET;
|
1995-06-27 11:07:30 +00:00
|
|
|
if (flags & OP_KERB)
|
|
|
|
dp->dp_flag |= DP_KERB;
|
|
|
|
}
|
1994-05-26 06:35:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Search for a dirpath on the export point.
|
|
|
|
*/
|
|
|
|
struct dirlist *
|
|
|
|
dirp_search(dp, dirpath)
|
|
|
|
struct dirlist *dp;
|
|
|
|
char *dirpath;
|
|
|
|
{
|
|
|
|
int cmp;
|
|
|
|
|
|
|
|
if (dp) {
|
|
|
|
cmp = strcmp(dp->dp_dirp, dirpath);
|
|
|
|
if (cmp > 0)
|
|
|
|
return (dirp_search(dp->dp_left, dirpath));
|
|
|
|
else if (cmp < 0)
|
|
|
|
return (dirp_search(dp->dp_right, dirpath));
|
|
|
|
else
|
|
|
|
return (dp);
|
|
|
|
}
|
|
|
|
return (dp);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Scan for a host match in a directory tree.
|
|
|
|
*/
|
|
|
|
int
|
1995-06-27 11:07:30 +00:00
|
|
|
chk_host(dp, saddr, defsetp, hostsetp)
|
1994-05-26 06:35:07 +00:00
|
|
|
struct dirlist *dp;
|
|
|
|
u_long saddr;
|
|
|
|
int *defsetp;
|
1995-06-27 11:07:30 +00:00
|
|
|
int *hostsetp;
|
1994-05-26 06:35:07 +00:00
|
|
|
{
|
|
|
|
struct hostlist *hp;
|
|
|
|
struct grouplist *grp;
|
|
|
|
u_long **addrp;
|
|
|
|
|
|
|
|
if (dp) {
|
|
|
|
if (dp->dp_flag & DP_DEFSET)
|
1995-06-27 11:07:30 +00:00
|
|
|
*defsetp = dp->dp_flag;
|
1994-05-26 06:35:07 +00:00
|
|
|
hp = dp->dp_hosts;
|
|
|
|
while (hp) {
|
|
|
|
grp = hp->ht_grp;
|
|
|
|
switch (grp->gr_type) {
|
|
|
|
case GT_HOST:
|
|
|
|
addrp = (u_long **)
|
|
|
|
grp->gr_ptr.gt_hostent->h_addr_list;
|
|
|
|
while (*addrp) {
|
1995-06-27 11:07:30 +00:00
|
|
|
if (**addrp == saddr) {
|
|
|
|
*hostsetp = (hp->ht_flag | DP_HOSTSET);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
1995-06-27 11:07:30 +00:00
|
|
|
}
|
1994-05-26 06:35:07 +00:00
|
|
|
addrp++;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case GT_NET:
|
|
|
|
if ((saddr & grp->gr_ptr.gt_net.nt_mask) ==
|
1995-06-27 11:07:30 +00:00
|
|
|
grp->gr_ptr.gt_net.nt_net) {
|
|
|
|
*hostsetp = (hp->ht_flag | DP_HOSTSET);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
1995-06-27 11:07:30 +00:00
|
|
|
}
|
1994-05-26 06:35:07 +00:00
|
|
|
break;
|
|
|
|
};
|
|
|
|
hp = hp->ht_next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Scan tree for a host that matches the address.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
scan_tree(dp, saddr)
|
|
|
|
struct dirlist *dp;
|
|
|
|
u_long saddr;
|
|
|
|
{
|
1995-06-27 11:07:30 +00:00
|
|
|
int defset, hostset;
|
1994-05-26 06:35:07 +00:00
|
|
|
|
|
|
|
if (dp) {
|
|
|
|
if (scan_tree(dp->dp_left, saddr))
|
|
|
|
return (1);
|
1995-06-27 11:07:30 +00:00
|
|
|
if (chk_host(dp, saddr, &defset, &hostset))
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
|
|
|
if (scan_tree(dp->dp_right, saddr))
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Traverse the dirlist tree and free it up.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
free_dir(dp)
|
|
|
|
struct dirlist *dp;
|
|
|
|
{
|
|
|
|
|
|
|
|
if (dp) {
|
|
|
|
free_dir(dp->dp_left);
|
|
|
|
free_dir(dp->dp_right);
|
|
|
|
free_host(dp->dp_hosts);
|
|
|
|
free((caddr_t)dp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Parse the option string and update fields.
|
|
|
|
* Option arguments may either be -<option>=<value> or
|
|
|
|
* -<option> <value>
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
do_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr)
|
|
|
|
char **cpp, **endcpp;
|
|
|
|
struct exportlist *ep;
|
|
|
|
struct grouplist *grp;
|
|
|
|
int *has_hostp;
|
|
|
|
int *exflagsp;
|
|
|
|
struct ucred *cr;
|
|
|
|
{
|
|
|
|
char *cpoptarg, *cpoptend;
|
|
|
|
char *cp, *endcp, *cpopt, savedc, savedc2;
|
|
|
|
int allflag, usedarg;
|
|
|
|
|
|
|
|
cpopt = *cpp;
|
|
|
|
cpopt++;
|
|
|
|
cp = *endcpp;
|
|
|
|
savedc = *cp;
|
|
|
|
*cp = '\0';
|
|
|
|
while (cpopt && *cpopt) {
|
|
|
|
allflag = 1;
|
|
|
|
usedarg = -2;
|
1997-03-11 12:43:45 +00:00
|
|
|
if (cpoptend = strchr(cpopt, ',')) {
|
1994-05-26 06:35:07 +00:00
|
|
|
*cpoptend++ = '\0';
|
1997-03-11 12:43:45 +00:00
|
|
|
if (cpoptarg = strchr(cpopt, '='))
|
1994-05-26 06:35:07 +00:00
|
|
|
*cpoptarg++ = '\0';
|
|
|
|
} else {
|
1997-03-11 12:43:45 +00:00
|
|
|
if (cpoptarg = strchr(cpopt, '='))
|
1994-05-26 06:35:07 +00:00
|
|
|
*cpoptarg++ = '\0';
|
|
|
|
else {
|
|
|
|
*cp = savedc;
|
|
|
|
nextfield(&cp, &endcp);
|
|
|
|
**endcpp = '\0';
|
|
|
|
if (endcp > cp && *cp != '-') {
|
|
|
|
cpoptarg = cp;
|
|
|
|
savedc2 = *endcp;
|
|
|
|
*endcp = '\0';
|
|
|
|
usedarg = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) {
|
|
|
|
*exflagsp |= MNT_EXRDONLY;
|
|
|
|
} else if (cpoptarg && (!strcmp(cpopt, "maproot") ||
|
|
|
|
!(allflag = strcmp(cpopt, "mapall")) ||
|
|
|
|
!strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) {
|
|
|
|
usedarg++;
|
|
|
|
parsecred(cpoptarg, cr);
|
|
|
|
if (allflag == 0) {
|
|
|
|
*exflagsp |= MNT_EXPORTANON;
|
|
|
|
opt_flags |= OP_MAPALL;
|
|
|
|
} else
|
|
|
|
opt_flags |= OP_MAPROOT;
|
|
|
|
} else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) {
|
|
|
|
*exflagsp |= MNT_EXKERB;
|
|
|
|
opt_flags |= OP_KERB;
|
|
|
|
} else if (cpoptarg && (!strcmp(cpopt, "mask") ||
|
|
|
|
!strcmp(cpopt, "m"))) {
|
|
|
|
if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) {
|
|
|
|
syslog(LOG_ERR, "Bad mask: %s", cpoptarg);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
usedarg++;
|
|
|
|
opt_flags |= OP_MASK;
|
|
|
|
} else if (cpoptarg && (!strcmp(cpopt, "network") ||
|
|
|
|
!strcmp(cpopt, "n"))) {
|
|
|
|
if (grp->gr_type != GT_NULL) {
|
|
|
|
syslog(LOG_ERR, "Network/host conflict");
|
|
|
|
return (1);
|
|
|
|
} else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) {
|
|
|
|
syslog(LOG_ERR, "Bad net: %s", cpoptarg);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
grp->gr_type = GT_NET;
|
|
|
|
*has_hostp = 1;
|
|
|
|
usedarg++;
|
|
|
|
opt_flags |= OP_NET;
|
|
|
|
} else if (!strcmp(cpopt, "alldirs")) {
|
|
|
|
opt_flags |= OP_ALLDIRS;
|
1997-07-16 09:27:53 +00:00
|
|
|
} else if (!strcmp(cpopt, "public")) {
|
|
|
|
*exflagsp |= MNT_EXPUBLIC;
|
|
|
|
} else if (!strcmp(cpopt, "webnfs")) {
|
|
|
|
*exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON);
|
|
|
|
opt_flags |= OP_MAPALL;
|
|
|
|
} else if (cpoptarg && !strcmp(cpopt, "index")) {
|
|
|
|
ep->ex_indexfile = strdup(cpoptarg);
|
1994-05-26 06:35:07 +00:00
|
|
|
#ifdef ISO
|
|
|
|
} else if (cpoptarg && !strcmp(cpopt, "iso")) {
|
|
|
|
if (get_isoaddr(cpoptarg, grp)) {
|
|
|
|
syslog(LOG_ERR, "Bad iso addr: %s", cpoptarg);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
*has_hostp = 1;
|
|
|
|
usedarg++;
|
|
|
|
opt_flags |= OP_ISO;
|
|
|
|
#endif /* ISO */
|
|
|
|
} else {
|
|
|
|
syslog(LOG_ERR, "Bad opt %s", cpopt);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (usedarg >= 0) {
|
|
|
|
*endcp = savedc2;
|
|
|
|
**endcpp = savedc;
|
|
|
|
if (usedarg > 0) {
|
|
|
|
*cpp = cp;
|
|
|
|
*endcpp = endcp;
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
cpopt = cpoptend;
|
|
|
|
}
|
|
|
|
**endcpp = savedc;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Translate a character string to the corresponding list of network
|
|
|
|
* addresses for a hostname.
|
|
|
|
*/
|
|
|
|
int
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
get_host(cp, grp, tgrp)
|
1994-05-26 06:35:07 +00:00
|
|
|
char *cp;
|
|
|
|
struct grouplist *grp;
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
struct grouplist *tgrp;
|
1994-05-26 06:35:07 +00:00
|
|
|
{
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
struct grouplist *checkgrp;
|
1994-05-26 06:35:07 +00:00
|
|
|
struct hostent *hp, *nhp;
|
|
|
|
char **addrp, **naddrp;
|
|
|
|
struct hostent t_host;
|
|
|
|
int i;
|
|
|
|
u_long saddr;
|
|
|
|
char *aptr[2];
|
|
|
|
|
|
|
|
if (grp->gr_type != GT_NULL)
|
|
|
|
return (1);
|
|
|
|
if ((hp = gethostbyname(cp)) == NULL) {
|
|
|
|
if (isdigit(*cp)) {
|
|
|
|
saddr = inet_addr(cp);
|
|
|
|
if (saddr == -1) {
|
1995-06-27 11:07:30 +00:00
|
|
|
syslog(LOG_ERR, "Inet_addr failed for %s", cp);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr),
|
|
|
|
AF_INET)) == NULL) {
|
|
|
|
hp = &t_host;
|
|
|
|
hp->h_name = cp;
|
|
|
|
hp->h_addrtype = AF_INET;
|
|
|
|
hp->h_length = sizeof (u_long);
|
|
|
|
hp->h_addr_list = aptr;
|
|
|
|
aptr[0] = (char *)&saddr;
|
|
|
|
aptr[1] = (char *)NULL;
|
|
|
|
}
|
|
|
|
} else {
|
1995-06-27 11:07:30 +00:00
|
|
|
syslog(LOG_ERR, "Gethostbyname failed for %s", cp);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
}
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
/*
|
|
|
|
* Sanity check: make sure we don't already have an entry
|
|
|
|
* for this host in the grouplist.
|
|
|
|
*/
|
|
|
|
checkgrp = tgrp;
|
|
|
|
while (checkgrp) {
|
1996-08-29 14:20:57 +00:00
|
|
|
if (checkgrp->gr_type == GT_HOST &&
|
|
|
|
checkgrp->gr_ptr.gt_hostent != NULL &&
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
!strcmp(checkgrp->gr_ptr.gt_hostent->h_name, hp->h_name)) {
|
|
|
|
grp->gr_type = GT_IGNORE;
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
checkgrp = checkgrp->gr_next;
|
|
|
|
}
|
|
|
|
|
1994-05-26 06:35:07 +00:00
|
|
|
grp->gr_type = GT_HOST;
|
|
|
|
nhp = grp->gr_ptr.gt_hostent = (struct hostent *)
|
|
|
|
malloc(sizeof(struct hostent));
|
|
|
|
if (nhp == (struct hostent *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memmove(nhp, hp, sizeof(struct hostent));
|
1994-05-26 06:35:07 +00:00
|
|
|
i = strlen(hp->h_name)+1;
|
|
|
|
nhp->h_name = (char *)malloc(i);
|
|
|
|
if (nhp->h_name == (char *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memmove(nhp->h_name, hp->h_name, i);
|
1994-05-26 06:35:07 +00:00
|
|
|
addrp = hp->h_addr_list;
|
|
|
|
i = 1;
|
|
|
|
while (*addrp++)
|
|
|
|
i++;
|
|
|
|
naddrp = nhp->h_addr_list = (char **)
|
|
|
|
malloc(i*sizeof(char *));
|
|
|
|
if (naddrp == (char **)NULL)
|
|
|
|
out_of_mem();
|
|
|
|
addrp = hp->h_addr_list;
|
|
|
|
while (*addrp) {
|
|
|
|
*naddrp = (char *)
|
|
|
|
malloc(hp->h_length);
|
|
|
|
if (*naddrp == (char *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memmove(*naddrp, *addrp, hp->h_length);
|
1994-05-26 06:35:07 +00:00
|
|
|
addrp++;
|
|
|
|
naddrp++;
|
|
|
|
}
|
|
|
|
*naddrp = (char *)NULL;
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr, "got host %s\n", hp->h_name);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Free up an exports list component
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
free_exp(ep)
|
|
|
|
struct exportlist *ep;
|
|
|
|
{
|
|
|
|
|
|
|
|
if (ep->ex_defdir) {
|
|
|
|
free_host(ep->ex_defdir->dp_hosts);
|
|
|
|
free((caddr_t)ep->ex_defdir);
|
|
|
|
}
|
|
|
|
if (ep->ex_fsdir)
|
|
|
|
free(ep->ex_fsdir);
|
1997-07-16 09:27:53 +00:00
|
|
|
if (ep->ex_indexfile)
|
|
|
|
free(ep->ex_indexfile);
|
1994-05-26 06:35:07 +00:00
|
|
|
free_dir(ep->ex_dirl);
|
|
|
|
free((caddr_t)ep);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Free hosts.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
free_host(hp)
|
|
|
|
struct hostlist *hp;
|
|
|
|
{
|
|
|
|
struct hostlist *hp2;
|
|
|
|
|
|
|
|
while (hp) {
|
|
|
|
hp2 = hp;
|
|
|
|
hp = hp->ht_next;
|
|
|
|
free((caddr_t)hp2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct hostlist *
|
|
|
|
get_ht()
|
|
|
|
{
|
|
|
|
struct hostlist *hp;
|
|
|
|
|
|
|
|
hp = (struct hostlist *)malloc(sizeof (struct hostlist));
|
|
|
|
if (hp == (struct hostlist *)NULL)
|
|
|
|
out_of_mem();
|
|
|
|
hp->ht_next = (struct hostlist *)NULL;
|
1995-06-27 11:07:30 +00:00
|
|
|
hp->ht_flag = 0;
|
1994-05-26 06:35:07 +00:00
|
|
|
return (hp);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef ISO
|
|
|
|
/*
|
|
|
|
* Translate an iso address.
|
|
|
|
*/
|
|
|
|
get_isoaddr(cp, grp)
|
|
|
|
char *cp;
|
|
|
|
struct grouplist *grp;
|
|
|
|
{
|
|
|
|
struct iso_addr *isop;
|
|
|
|
struct sockaddr_iso *isoaddr;
|
|
|
|
|
|
|
|
if (grp->gr_type != GT_NULL)
|
|
|
|
return (1);
|
|
|
|
if ((isop = iso_addr(cp)) == NULL) {
|
|
|
|
syslog(LOG_ERR,
|
|
|
|
"iso_addr failed, ignored");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
isoaddr = (struct sockaddr_iso *)
|
|
|
|
malloc(sizeof (struct sockaddr_iso));
|
|
|
|
if (isoaddr == (struct sockaddr_iso *)NULL)
|
|
|
|
out_of_mem();
|
1997-03-11 12:43:45 +00:00
|
|
|
memset(isoaddr, 0, sizeof(struct sockaddr_iso));
|
|
|
|
memmove(&isoaddr->siso_addr, isop, sizeof(struct iso_addr));
|
|
|
|
isoaddr->siso_len = sizeof(struct sockaddr_iso);
|
1994-05-26 06:35:07 +00:00
|
|
|
isoaddr->siso_family = AF_ISO;
|
|
|
|
grp->gr_type = GT_ISO;
|
|
|
|
grp->gr_ptr.gt_isoaddr = isoaddr;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
#endif /* ISO */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Out of memory, fatal
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
out_of_mem()
|
|
|
|
{
|
|
|
|
|
|
|
|
syslog(LOG_ERR, "Out of memory");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do the mount syscall with the update flag to push the export info into
|
|
|
|
* the kernel.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
do_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb)
|
|
|
|
struct exportlist *ep;
|
|
|
|
struct grouplist *grp;
|
|
|
|
int exflags;
|
|
|
|
struct ucred *anoncrp;
|
|
|
|
char *dirp;
|
|
|
|
int dirplen;
|
|
|
|
struct statfs *fsb;
|
|
|
|
{
|
|
|
|
char *cp = (char *)NULL;
|
|
|
|
u_long **addrp;
|
|
|
|
int done;
|
|
|
|
char savedc = '\0';
|
|
|
|
struct sockaddr_in sin, imask;
|
|
|
|
union {
|
|
|
|
struct ufs_args ua;
|
|
|
|
struct iso_args ia;
|
|
|
|
struct mfs_args ma;
|
1995-06-27 11:07:30 +00:00
|
|
|
#ifdef __NetBSD__
|
|
|
|
struct msdosfs_args da;
|
|
|
|
#endif
|
1994-05-26 06:35:07 +00:00
|
|
|
} args;
|
|
|
|
u_long net;
|
|
|
|
|
|
|
|
args.ua.fspec = 0;
|
|
|
|
args.ua.export.ex_flags = exflags;
|
|
|
|
args.ua.export.ex_anon = *anoncrp;
|
1997-07-16 09:27:53 +00:00
|
|
|
args.ua.export.ex_indexfile = ep->ex_indexfile;
|
1997-03-11 12:43:45 +00:00
|
|
|
memset(&sin, 0, sizeof(sin));
|
|
|
|
memset(&imask, 0, sizeof(imask));
|
1994-05-26 06:35:07 +00:00
|
|
|
sin.sin_family = AF_INET;
|
|
|
|
sin.sin_len = sizeof(sin);
|
|
|
|
imask.sin_family = AF_INET;
|
|
|
|
imask.sin_len = sizeof(sin);
|
|
|
|
if (grp->gr_type == GT_HOST)
|
|
|
|
addrp = (u_long **)grp->gr_ptr.gt_hostent->h_addr_list;
|
|
|
|
else
|
|
|
|
addrp = (u_long **)NULL;
|
|
|
|
done = FALSE;
|
|
|
|
while (!done) {
|
|
|
|
switch (grp->gr_type) {
|
|
|
|
case GT_HOST:
|
|
|
|
if (addrp) {
|
|
|
|
sin.sin_addr.s_addr = **addrp;
|
|
|
|
args.ua.export.ex_addrlen = sizeof(sin);
|
|
|
|
} else
|
|
|
|
args.ua.export.ex_addrlen = 0;
|
|
|
|
args.ua.export.ex_addr = (struct sockaddr *)&sin;
|
|
|
|
args.ua.export.ex_masklen = 0;
|
|
|
|
break;
|
|
|
|
case GT_NET:
|
|
|
|
if (grp->gr_ptr.gt_net.nt_mask)
|
|
|
|
imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask;
|
|
|
|
else {
|
|
|
|
net = ntohl(grp->gr_ptr.gt_net.nt_net);
|
|
|
|
if (IN_CLASSA(net))
|
|
|
|
imask.sin_addr.s_addr = inet_addr("255.0.0.0");
|
|
|
|
else if (IN_CLASSB(net))
|
|
|
|
imask.sin_addr.s_addr =
|
|
|
|
inet_addr("255.255.0.0");
|
|
|
|
else
|
|
|
|
imask.sin_addr.s_addr =
|
|
|
|
inet_addr("255.255.255.0");
|
|
|
|
grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr;
|
|
|
|
}
|
|
|
|
sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net;
|
|
|
|
args.ua.export.ex_addr = (struct sockaddr *)&sin;
|
|
|
|
args.ua.export.ex_addrlen = sizeof (sin);
|
|
|
|
args.ua.export.ex_mask = (struct sockaddr *)&imask;
|
|
|
|
args.ua.export.ex_masklen = sizeof (imask);
|
|
|
|
break;
|
|
|
|
#ifdef ISO
|
|
|
|
case GT_ISO:
|
|
|
|
args.ua.export.ex_addr =
|
|
|
|
(struct sockaddr *)grp->gr_ptr.gt_isoaddr;
|
|
|
|
args.ua.export.ex_addrlen =
|
|
|
|
sizeof(struct sockaddr_iso);
|
|
|
|
args.ua.export.ex_masklen = 0;
|
|
|
|
break;
|
|
|
|
#endif /* ISO */
|
Fixed stupid bug in mountd: it would seem that the kernel doesn't allow
you to push the same host into its NFS export lists twice, but mountd
tries to do it anyway. This means that putting:
/some_file_system -ro host1 host1
in your /etc/exports file causes an error. This is bogus: mountd should be
smart enough to ignore the second instance of host1. This can be a problem
in some configurations that use netgroups. For example, each host in my
netgroups database is has two entries:
startide (startide,-,) (startide.ctr.columbia.edu,-,)
When mountd sees this, it tries to put startide.ctr.columbia.edu into the
export list *twice*. Just listing 'startide' /etc/exports list will also
screw up because mountd will try to resolve the netgroup 'startide' instead
of the hostname 'startide.'
My solution is watch for duplicate entries in get_host() and mark them
as grouptype GT_IGNORE, which do_mount() will now cheefully throw away.
This is a bit of a kludge, but it was the least obtrusive fix I could
come up with.
Also silenced a compiler warning: arguments passwd to xdr_long() should
be u_long, not int. :)
1995-03-26 23:36:38 +00:00
|
|
|
case GT_IGNORE:
|
|
|
|
return(0);
|
|
|
|
break;
|
1994-05-26 06:35:07 +00:00
|
|
|
default:
|
|
|
|
syslog(LOG_ERR, "Bad grouptype");
|
|
|
|
if (cp)
|
|
|
|
*cp = savedc;
|
|
|
|
return (1);
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX:
|
|
|
|
* Maybe I should just use the fsb->f_mntonname path instead
|
|
|
|
* of looping back up the dirp to the mount point??
|
|
|
|
* Also, needs to know how to export all types of local
|
1997-03-11 12:43:45 +00:00
|
|
|
* exportable file systems and not just "ufs".
|
1994-05-26 06:35:07 +00:00
|
|
|
*/
|
1995-06-27 11:07:30 +00:00
|
|
|
while (mount(fsb->f_fstypename, dirp,
|
1994-05-26 06:35:07 +00:00
|
|
|
fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) {
|
|
|
|
if (cp)
|
|
|
|
*cp-- = savedc;
|
|
|
|
else
|
|
|
|
cp = dirp + dirplen - 1;
|
|
|
|
if (errno == EPERM) {
|
|
|
|
syslog(LOG_ERR,
|
|
|
|
"Can't change attributes for %s.\n", dirp);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (opt_flags & OP_ALLDIRS) {
|
1994-12-02 02:58:56 +00:00
|
|
|
syslog(LOG_ERR, "Could not remount %s: %m",
|
|
|
|
dirp);
|
1994-05-26 06:35:07 +00:00
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
/* back up over the last component */
|
|
|
|
while (*cp == '/' && cp > dirp)
|
|
|
|
cp--;
|
|
|
|
while (*(cp - 1) != '/' && cp > dirp)
|
|
|
|
cp--;
|
|
|
|
if (cp == dirp) {
|
|
|
|
if (debug)
|
|
|
|
fprintf(stderr,"mnt unsucc\n");
|
|
|
|
syslog(LOG_ERR, "Can't export %s", dirp);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
savedc = *cp;
|
|
|
|
*cp = '\0';
|
|
|
|
}
|
|
|
|
if (addrp) {
|
|
|
|
++addrp;
|
|
|
|
if (*addrp == (u_long *)NULL)
|
|
|
|
done = TRUE;
|
|
|
|
} else
|
|
|
|
done = TRUE;
|
|
|
|
}
|
|
|
|
if (cp)
|
|
|
|
*cp = savedc;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Translate a net address.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
get_net(cp, net, maskflg)
|
|
|
|
char *cp;
|
|
|
|
struct netmsk *net;
|
|
|
|
int maskflg;
|
|
|
|
{
|
|
|
|
struct netent *np;
|
|
|
|
long netaddr;
|
|
|
|
struct in_addr inetaddr, inetaddr2;
|
|
|
|
char *name;
|
|
|
|
|
1997-04-30 18:40:12 +00:00
|
|
|
if (isdigit(*cp) && ((netaddr = inet_network(cp)) != -1)) {
|
1994-05-26 06:35:07 +00:00
|
|
|
inetaddr = inet_makeaddr(netaddr, 0);
|
|
|
|
/*
|
|
|
|
* Due to arbritrary subnet masks, you don't know how many
|
|
|
|
* bits to shift the address to make it into a network,
|
|
|
|
* however you do know how to make a network address into
|
|
|
|
* a host with host == 0 and then compare them.
|
|
|
|
* (What a pest)
|
|
|
|
*/
|
|
|
|
if (!maskflg) {
|
|
|
|
setnetent(0);
|
|
|
|
while (np = getnetent()) {
|
|
|
|
inetaddr2 = inet_makeaddr(np->n_net, 0);
|
|
|
|
if (inetaddr2.s_addr == inetaddr.s_addr)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
endnetent();
|
|
|
|
}
|
1997-04-30 18:40:12 +00:00
|
|
|
} else if ((np = getnetbyname(cp)) != NULL) {
|
|
|
|
inetaddr = inet_makeaddr(np->n_net, 0);
|
1994-05-26 06:35:07 +00:00
|
|
|
} else
|
|
|
|
return (1);
|
1997-04-30 18:40:12 +00:00
|
|
|
|
1994-05-26 06:35:07 +00:00
|
|
|
if (maskflg)
|
|
|
|
net->nt_mask = inetaddr.s_addr;
|
|
|
|
else {
|
|
|
|
if (np)
|
|
|
|
name = np->n_name;
|
|
|
|
else
|
|
|
|
name = inet_ntoa(inetaddr);
|
|
|
|
net->nt_name = (char *)malloc(strlen(name) + 1);
|
|
|
|
if (net->nt_name == (char *)NULL)
|
|
|
|
out_of_mem();
|
|
|
|
strcpy(net->nt_name, name);
|
|
|
|
net->nt_net = inetaddr.s_addr;
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Parse out the next white space separated field
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
nextfield(cp, endcp)
|
|
|
|
char **cp;
|
|
|
|
char **endcp;
|
|
|
|
{
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
p = *cp;
|
|
|
|
while (*p == ' ' || *p == '\t')
|
|
|
|
p++;
|
|
|
|
if (*p == '\n' || *p == '\0')
|
|
|
|
*cp = *endcp = p;
|
|
|
|
else {
|
|
|
|
*cp = p++;
|
|
|
|
while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0')
|
|
|
|
p++;
|
|
|
|
*endcp = p;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get an exports file line. Skip over blank lines and handle line
|
|
|
|
* continuations.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
get_line()
|
|
|
|
{
|
|
|
|
char *p, *cp;
|
|
|
|
int len;
|
|
|
|
int totlen, cont_line;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Loop around ignoring blank lines and getting all continuation lines.
|
|
|
|
*/
|
|
|
|
p = line;
|
|
|
|
totlen = 0;
|
|
|
|
do {
|
|
|
|
if (fgets(p, LINESIZ - totlen, exp_file) == NULL)
|
|
|
|
return (0);
|
|
|
|
len = strlen(p);
|
|
|
|
cp = p + len - 1;
|
|
|
|
cont_line = 0;
|
|
|
|
while (cp >= p &&
|
|
|
|
(*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) {
|
|
|
|
if (*cp == '\\')
|
|
|
|
cont_line = 1;
|
|
|
|
cp--;
|
|
|
|
len--;
|
|
|
|
}
|
|
|
|
*++cp = '\0';
|
|
|
|
if (len > 0) {
|
|
|
|
totlen += len;
|
|
|
|
if (totlen >= LINESIZ) {
|
|
|
|
syslog(LOG_ERR, "Exports line too long");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
p = cp;
|
|
|
|
}
|
|
|
|
} while (totlen == 0 || cont_line);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Parse a description of a credential.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
parsecred(namelist, cr)
|
|
|
|
char *namelist;
|
|
|
|
struct ucred *cr;
|
|
|
|
{
|
|
|
|
char *name;
|
|
|
|
int cnt;
|
|
|
|
char *names;
|
|
|
|
struct passwd *pw;
|
|
|
|
struct group *gr;
|
|
|
|
int ngroups, groups[NGROUPS + 1];
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set up the unpriviledged user.
|
|
|
|
*/
|
|
|
|
cr->cr_ref = 1;
|
|
|
|
cr->cr_uid = -2;
|
|
|
|
cr->cr_groups[0] = -2;
|
|
|
|
cr->cr_ngroups = 1;
|
|
|
|
/*
|
|
|
|
* Get the user's password table entry.
|
|
|
|
*/
|
|
|
|
names = strsep(&namelist, " \t\n");
|
|
|
|
name = strsep(&names, ":");
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|
|
if (isdigit(*name) || *name == '-')
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|
|
pw = getpwuid(atoi(name));
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|
|
else
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|
|
|
pw = getpwnam(name);
|
|
|
|
/*
|
|
|
|
* Credentials specified as those of a user.
|
|
|
|
*/
|
|
|
|
if (names == NULL) {
|
|
|
|
if (pw == NULL) {
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|
|
|
syslog(LOG_ERR, "Unknown user: %s", name);
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|
|
|
return;
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|
|
|
}
|
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|
|
cr->cr_uid = pw->pw_uid;
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|
|
ngroups = NGROUPS + 1;
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|
|
if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups))
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|
|
|
syslog(LOG_ERR, "Too many groups");
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|
|
|
/*
|
|
|
|
* Convert from int's to gid_t's and compress out duplicate
|
|
|
|
*/
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|
|
cr->cr_ngroups = ngroups - 1;
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|
|
cr->cr_groups[0] = groups[0];
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|
|
for (cnt = 2; cnt < ngroups; cnt++)
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|
|
cr->cr_groups[cnt - 1] = groups[cnt];
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|
|
|
return;
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|
|
|
}
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|
|
|
/*
|
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|
|
* Explicit credential specified as a colon separated list:
|
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|
|
* uid:gid:gid:...
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|
|
|
*/
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|
|
if (pw != NULL)
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|
|
cr->cr_uid = pw->pw_uid;
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|
|
else if (isdigit(*name) || *name == '-')
|
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|
|
cr->cr_uid = atoi(name);
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|
|
else {
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|
|
|
syslog(LOG_ERR, "Unknown user: %s", name);
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|
|
|
return;
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|
|
|
}
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|
|
|
cr->cr_ngroups = 0;
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|
|
while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) {
|
|
|
|
name = strsep(&names, ":");
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|
|
if (isdigit(*name) || *name == '-') {
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|
|
cr->cr_groups[cr->cr_ngroups++] = atoi(name);
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|
|
|
} else {
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|
|
|
if ((gr = getgrnam(name)) == NULL) {
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|
|
syslog(LOG_ERR, "Unknown group: %s", name);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS)
|
|
|
|
syslog(LOG_ERR, "Too many groups");
|
|
|
|
}
|
|
|
|
|
|
|
|
#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50)
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|
|
/*
|
|
|
|
* Routines that maintain the remote mounttab
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
get_mountlist()
|
|
|
|
{
|
|
|
|
struct mountlist *mlp, **mlpp;
|
1997-03-11 12:43:45 +00:00
|
|
|
char *host, *dirp, *cp;
|
1994-05-26 06:35:07 +00:00
|
|
|
int len;
|
|
|
|
char str[STRSIZ];
|
|
|
|
FILE *mlfile;
|
|
|
|
|
|
|
|
if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) {
|
|
|
|
syslog(LOG_ERR, "Can't open %s", _PATH_RMOUNTLIST);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
mlpp = &mlhead;
|
|
|
|
while (fgets(str, STRSIZ, mlfile) != NULL) {
|
1997-03-11 12:43:45 +00:00
|
|
|
cp = str;
|
|
|
|
host = strsep(&cp, " \t\n");
|
|
|
|
dirp = strsep(&cp, " \t\n");
|
|
|
|
if (host == NULL || dirp == NULL)
|
1994-05-26 06:35:07 +00:00
|
|
|
continue;
|
|
|
|
mlp = (struct mountlist *)malloc(sizeof (*mlp));
|
1997-03-11 12:43:45 +00:00
|
|
|
strncpy(mlp->ml_host, host, RPCMNT_NAMELEN);
|
|
|
|
mlp->ml_host[RPCMNT_NAMELEN] = '\0';
|
|
|
|
strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN);
|
|
|
|
mlp->ml_dirp[RPCMNT_PATHLEN] = '\0';
|
1994-05-26 06:35:07 +00:00
|
|
|
mlp->ml_next = (struct mountlist *)NULL;
|
|
|
|
*mlpp = mlp;
|
|
|
|
mlpp = &mlp->ml_next;
|
|
|
|
}
|
|
|
|
fclose(mlfile);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
del_mlist(hostp, dirp)
|
|
|
|
char *hostp, *dirp;
|
|
|
|
{
|
|
|
|
struct mountlist *mlp, **mlpp;
|
|
|
|
struct mountlist *mlp2;
|
|
|
|
FILE *mlfile;
|
|
|
|
int fnd = 0;
|
|
|
|
|
|
|
|
mlpp = &mlhead;
|
|
|
|
mlp = mlhead;
|
|
|
|
while (mlp) {
|
|
|
|
if (!strcmp(mlp->ml_host, hostp) &&
|
|
|
|
(!dirp || !strcmp(mlp->ml_dirp, dirp))) {
|
|
|
|
fnd = 1;
|
|
|
|
mlp2 = mlp;
|
|
|
|
*mlpp = mlp = mlp->ml_next;
|
|
|
|
free((caddr_t)mlp2);
|
|
|
|
} else {
|
|
|
|
mlpp = &mlp->ml_next;
|
|
|
|
mlp = mlp->ml_next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (fnd) {
|
|
|
|
if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) {
|
|
|
|
syslog(LOG_ERR,"Can't update %s", _PATH_RMOUNTLIST);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
mlp = mlhead;
|
|
|
|
while (mlp) {
|
|
|
|
fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp);
|
|
|
|
mlp = mlp->ml_next;
|
|
|
|
}
|
|
|
|
fclose(mlfile);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
add_mlist(hostp, dirp)
|
|
|
|
char *hostp, *dirp;
|
|
|
|
{
|
|
|
|
struct mountlist *mlp, **mlpp;
|
|
|
|
FILE *mlfile;
|
|
|
|
|
|
|
|
mlpp = &mlhead;
|
|
|
|
mlp = mlhead;
|
|
|
|
while (mlp) {
|
|
|
|
if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp))
|
|
|
|
return;
|
|
|
|
mlpp = &mlp->ml_next;
|
|
|
|
mlp = mlp->ml_next;
|
|
|
|
}
|
|
|
|
mlp = (struct mountlist *)malloc(sizeof (*mlp));
|
|
|
|
strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN);
|
|
|
|
mlp->ml_host[RPCMNT_NAMELEN] = '\0';
|
|
|
|
strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN);
|
|
|
|
mlp->ml_dirp[RPCMNT_PATHLEN] = '\0';
|
|
|
|
mlp->ml_next = (struct mountlist *)NULL;
|
|
|
|
*mlpp = mlp;
|
|
|
|
if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) {
|
|
|
|
syslog(LOG_ERR, "Can't update %s", _PATH_RMOUNTLIST);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp);
|
|
|
|
fclose(mlfile);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function is called via. SIGTERM when the system is going down.
|
|
|
|
* It sends a broadcast RPCMNT_UMNTALL.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
send_umntall()
|
|
|
|
{
|
|
|
|
(void) clnt_broadcast(RPCPROG_MNT, RPCMNT_VER1, RPCMNT_UMNTALL,
|
|
|
|
xdr_void, (caddr_t)0, xdr_void, (caddr_t)0, umntall_each);
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
umntall_each(resultsp, raddr)
|
|
|
|
caddr_t resultsp;
|
|
|
|
struct sockaddr_in *raddr;
|
|
|
|
{
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Free up a group list.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
free_grp(grp)
|
|
|
|
struct grouplist *grp;
|
|
|
|
{
|
|
|
|
char **addrp;
|
|
|
|
|
|
|
|
if (grp->gr_type == GT_HOST) {
|
|
|
|
if (grp->gr_ptr.gt_hostent->h_name) {
|
|
|
|
addrp = grp->gr_ptr.gt_hostent->h_addr_list;
|
|
|
|
while (addrp && *addrp)
|
|
|
|
free(*addrp++);
|
|
|
|
free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list);
|
|
|
|
free(grp->gr_ptr.gt_hostent->h_name);
|
|
|
|
}
|
|
|
|
free((caddr_t)grp->gr_ptr.gt_hostent);
|
|
|
|
} else if (grp->gr_type == GT_NET) {
|
|
|
|
if (grp->gr_ptr.gt_net.nt_name)
|
|
|
|
free(grp->gr_ptr.gt_net.nt_name);
|
|
|
|
}
|
|
|
|
#ifdef ISO
|
|
|
|
else if (grp->gr_type == GT_ISO)
|
|
|
|
free((caddr_t)grp->gr_ptr.gt_isoaddr);
|
|
|
|
#endif
|
|
|
|
free((caddr_t)grp);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
void
|
|
|
|
SYSLOG(int pri, const char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
vfprintf(stderr, fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
}
|
|
|
|
#endif /* DEBUG */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check options for consistency.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
check_options(dp)
|
|
|
|
struct dirlist *dp;
|
|
|
|
{
|
|
|
|
|
|
|
|
if (dp == (struct dirlist *)NULL)
|
|
|
|
return (1);
|
|
|
|
if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) ||
|
|
|
|
(opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) ||
|
|
|
|
(opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) {
|
|
|
|
syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) {
|
|
|
|
syslog(LOG_ERR, "-mask requires -net");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if ((opt_flags & (OP_NET | OP_ISO)) == (OP_NET | OP_ISO)) {
|
|
|
|
syslog(LOG_ERR, "-net and -iso mutually exclusive");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if ((opt_flags & OP_ALLDIRS) && dp->dp_left) {
|
|
|
|
syslog(LOG_ERR, "-alldir has multiple directories");
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Check an absolute directory path for any symbolic links. Return true
|
|
|
|
* if no symbolic links are found.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
check_dirpath(dirp)
|
|
|
|
char *dirp;
|
|
|
|
{
|
|
|
|
char *cp;
|
|
|
|
int ret = 1;
|
|
|
|
struct stat sb;
|
|
|
|
|
|
|
|
cp = dirp + 1;
|
|
|
|
while (*cp && ret) {
|
|
|
|
if (*cp == '/') {
|
|
|
|
*cp = '\0';
|
1995-06-27 11:07:30 +00:00
|
|
|
if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode))
|
1994-05-26 06:35:07 +00:00
|
|
|
ret = 0;
|
|
|
|
*cp = '/';
|
|
|
|
}
|
|
|
|
cp++;
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode))
|
1994-05-26 06:35:07 +00:00
|
|
|
ret = 0;
|
|
|
|
return (ret);
|
|
|
|
}
|
1995-06-27 11:07:30 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Just translate an ascii string to an integer.
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
get_num(cp)
|
|
|
|
register char *cp;
|
|
|
|
{
|
|
|
|
register int res = 0;
|
|
|
|
|
|
|
|
while (*cp) {
|
|
|
|
if (*cp < '0' || *cp > '9')
|
|
|
|
return (-1);
|
|
|
|
res = res * 10 + (*cp++ - '0');
|
|
|
|
}
|
|
|
|
return (res);
|
|
|
|
}
|