52bf64c787
Obtained from: Whistle Communications tree Add an option to the way UFS works dependent on the SUID bit of directories This changes makes things a whole lot simpler on systems running as fileservers for PCs and MACS. to enable the new code you must 1/ enable option SUIDDIR on the kernel. 2/ mount the filesystem with option suiddir. hopefully this makes it difficult enough for people to do this accidentally. see the new chmod(2) man page for detailed info.
90 lines
3.7 KiB
C
90 lines
3.7 KiB
C
/*-
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* Copyright (c) 1994
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* The Regents of the University of California. All rights reserved.
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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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* @(#)mntopts.h 8.7 (Berkeley) 3/29/95
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* $Id: mntopts.h,v 1.11 1997/09/27 13:44:08 kato Exp $
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*/
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struct mntopt {
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const char *m_option; /* option name */
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int m_inverse; /* if a negative option, eg "dev" */
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int m_flag; /* bit to set, eg. MNT_RDONLY */
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int m_altloc; /* 1 => set bit in altflags */
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};
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/* User-visible MNT_ flags. */
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#define MOPT_ASYNC { "async", 0, MNT_ASYNC, 0 }
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#define MOPT_NOATIME { "atime", 1, MNT_NOATIME, 0 }
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#define MOPT_NODEV { "dev", 1, MNT_NODEV, 0 }
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#define MOPT_NOEXEC { "exec", 1, MNT_NOEXEC, 0 }
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#define MOPT_NOSUID { "suid", 1, MNT_NOSUID, 0 }
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#define MOPT_RDONLY { "rdonly", 0, MNT_RDONLY, 0 }
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#define MOPT_SYNC { "sync", 0, MNT_SYNCHRONOUS, 0 }
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#define MOPT_UNION { "union", 0, MNT_UNION, 0 }
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#define MOPT_USERQUOTA { "userquota", 0, 0, 0 }
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#define MOPT_GROUPQUOTA { "groupquota", 0, 0, 0 }
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#define MOPT_NOCLUSTERR { "clusterr", 1, MNT_NOCLUSTERR, 0 }
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#define MOPT_NOCLUSTERW { "clusterw", 1, MNT_NOCLUSTERW, 0 }
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#define MOPT_SUIDDIR { "suiddir", 0, MNT_SUIDDIR, 0 }
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/* Control flags. */
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#define MOPT_FORCE { "force", 0, MNT_FORCE, 0 }
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#define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
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#define MOPT_RO { "ro", 0, MNT_RDONLY, 0 }
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#define MOPT_RW { "rw", 1, MNT_RDONLY, 0 }
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/* This is parsed by mount(8), but is ignored by specific mount_*(8)s. */
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#define MOPT_AUTO { "auto", 0, 0, 0 }
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#define MOPT_FSTAB_COMPAT \
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MOPT_RO, \
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MOPT_RW, \
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MOPT_AUTO
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/* Standard options which all mounts can understand. */
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#define MOPT_STDOPTS \
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MOPT_USERQUOTA, \
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MOPT_GROUPQUOTA, \
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MOPT_FSTAB_COMPAT, \
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MOPT_NOATIME, \
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MOPT_NODEV, \
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MOPT_NOEXEC, \
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MOPT_SUIDDIR, /* must be before MOPT_NOSUID */ \
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MOPT_NOSUID, \
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MOPT_RDONLY, \
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MOPT_UNION, \
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MOPT_NOCLUSTERR, \
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MOPT_NOCLUSTERW
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void getmntopts __P((const char *, const struct mntopt *, int *, int *));
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extern int getmnt_silent;
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