Commit Graph

538 Commits

Author SHA1 Message Date
Warner Losh
ba1602a8ed Don't allow anyone except root to mount file systems that map uids.
This can have bad security implications, but the impact on FreeBSD
systems is minimal because this fs isn't in the default kernels and it
is unknown if it even works.

Submitted by: Manuel Bouyer <bouyer@antioche.eu.org> and
	Artur Grabowski <art@stacken.kth.se>
1999-03-12 19:40:39 +00:00
Peter Wemm
a32cf1f06d This code got moved as a result of confusion between union mounts and
unionfs.  Julian has already revived the union mount part of this move
in vfs_syscalls.c rev 1.119, but forgot to take it out of here.
1999-02-28 16:13:25 +00:00
Matthew Dillon
155f87daf2 Reviewed by: Julian Elischer <julian@whistle.com>
Add d_parms() to {c,b}devsw[].  If non-NULL this function points to
    a device routine that will properly fill in the specinfo structure.
    vfs_subr.c's checkalias() supplies appropriate defaults.  This change
    should be fully backwards compatible with existing devices.
1999-02-25 05:22:30 +00:00
Luoqi Chen
b1028ad122 Hide access to vmspace:vm_pmap with inline function vmspace_pmap(). This
is the preparation step for moving pmap storage out of vmspace proper.

Reviewed by:	Alan Cox	<alc@cs.rice.edu>
		Matthew Dillion	<dillon@apollo.backplane.com>
1999-02-19 14:25:37 +00:00
Semen Ustimenko
5ada11aa72 Added limited write ability. Now we can use some kind
of files for swap holders. See mount_ntfs..8 for details.
1999-02-19 12:31:02 +00:00
Matthew Dillon
9fdfe602fc Remove MAP_ENTRY_IS_A_MAP 'share' maps. These maps were once used to
attempt to optimize forks but were essentially given-up on due to
    problems and replaced with an explicit dup of the vm_map_entry structure.
    Prior to the removal, they were entirely unused.
1999-02-07 21:48:23 +00:00
John Polstra
b7429e253a Correct a format mismatch on 64-bit architectures. This should
fix the erroneous values in the procfs "map" file on the Alpha.
1999-02-05 06:18:54 +00:00
Semen Ustimenko
16ee760296 First version.
Reviewed by:	David O'Brien <obrien@NUXI.com>
1999-02-03 04:07:38 +00:00
Bruce Evans
95c391a468 Don't comment out dead code; remove it. 1999-01-31 11:54:29 +00:00
Poul-Henning Kamp
904efa5a75 Use suser() to determine super-user-ness.
Don't pretend we can mount RW.

Reviewed by:	bde
1999-01-30 12:26:22 +00:00
Bruce Evans
1d20193564 Removed a bogus cast to c_caddr_t. This is part of terminating
c_caddr_t with extreme prejudice.  Here we want to convert from
`const char *' to `const char *'.  Casting through c_caddr_t is
not the way to do this.  The original cast to caddr_t was apparently
to break warnings about const mismatches in other versions of BSD
(in 4.4BSDLite2, the conversion is from `const char *path' to
plain caddr_t).
1999-01-29 07:23:53 +00:00
Matthew Dillon
8aef171243 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-28 00:57:57 +00:00
Matthew Dillon
fe08c21a53 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile.

    This commit includes significant work to proper handle const arguments
    for the DDB symbol routines.
1999-01-27 23:45:44 +00:00
Matthew Dillon
831a80b0d5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 22:42:27 +00:00
Matthew Dillon
d254af07a1 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-27 21:50:00 +00:00
Matthew Dillon
b4e36adf1c Fix warnings preparing for -Wall -Wcast-qual
Also disable one usb module in LINT due to fatal compilation errors,
    temporary.
1999-01-27 20:09:21 +00:00
Matthew Dillon
1c7c3c6a86 This is a rather large commit that encompasses the new swapper,
changes to the VM system to support the new swapper, VM bug
    fixes, several VM optimizations, and some additional revamping of the
    VM code.  The specific bug fixes will be documented with additional
    forced commits.  This commit is somewhat rough in regards to code
    cleanup issues.

Reviewed by:	"John S. Dyson" <root@dyson.iquest.net>, "David Greenman" <dg@root.com>
1999-01-21 08:29:12 +00:00
Eivind Eklund
15a1057c46 Add 'options DEBUG_LOCKS', which stores extra information in struct
lock, and add some macros and function parameters to make sure that
the information get to the point where it can be put in the lock
structure.

While I'm here, add DEBUG_VFS_LOCKS to LINT.
1999-01-20 14:49:12 +00:00
Peter Wemm
b34c073744 Missed a stray LKM #ifdef 1999-01-17 21:04:53 +00:00
Peter Wemm
1351d07f0d Mountroot could concievably make sense to a KLD though, in the preload
case.  I'm not sure the autoconf code is up to it though...
1999-01-17 20:41:02 +00:00
Peter Wemm
6bfaa53754 Clean up the KLD/LKM goop a bit. 1999-01-17 20:25:22 +00:00
Eivind Eklund
ea2e827716 Remove declarations for undefined functions and a couple of unused
enotsupp implementations.
1999-01-12 11:49:30 +00:00
Bruce Evans
de5d1ba57c Don't pass unused unused timestamp args to UFS_UPDATE() or waste
time initializing them.  This almost finishes centralizing (in-core)
timestamp updates in ufs_itimes().
1999-01-07 16:14:19 +00:00
Eivind Eklund
fb1167777a Remove the 'waslocked' parameter to vfs_object_create(). 1999-01-05 18:50:03 +00:00
Peter Wemm
75ba77578f A partial implementation of the procfs cmdline pseudo-file. This
is enough to satisfy things like StarOffice.  This is a hack, but doing
it properly would be a LOT of work, and would require extensive grovelling
around in the user address space to find the argv[].

Obtained from: Mostly from Andrzej Bialecki <abial@nask.pl>.
1999-01-05 03:53:06 +00:00
Dmitrij Tejblum
57081f7b94 Now empty DOS filesystems default to long file names. Non-empty filesystems
without traces of Win95 default to short file names, as before.
1999-01-02 18:52:13 +00:00
Dmitrij Tejblum
9d9fdb45c5 Ensure that deHighClust in direntry always initialized.
Noticed by: 	Carl Mascott <cmascott@world.std.com>

Don't write access time of a file more than once per day. (Its precision is
1 day anyway). Don't try to write access and creation time in nonwin95 case.

Suggested by:	bde (long time ago).
1999-01-02 13:26:29 +00:00
Bruce Evans
289bdf33d3 Ifdefed conditionally used simplock variables. 1999-01-02 11:34:57 +00:00
Bruce Evans
f2aed91b48 Made this compile if UMAPFS_DIAGNOSTIC is defined. This has been broken
since before rev.1.1, so UMAPFS_DIAGNOSTIC should not be trusted.
UMAPFS_DIAGNOSTIC is commented out in LINT to hide various bugs.
1999-01-01 10:14:37 +00:00
Eivind Eklund
e910d98670 Fix possible NULL-pointer deref in error case (same as DEVFS). 1998-12-16 00:10:51 +00:00
Matthew Dillon
27ed09c2f0 Cleanup uninitialized-possibly-used (but really not) warnings 1998-12-14 05:00:59 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Eivind Eklund
c598db2204 '\0' is the most ugly NULL pointer constant I've ever seen in real code. 1998-12-07 02:47:46 +00:00
Jordan K. Hubbard
7525853ce7 MFC: loosen compare even though bde doesn't like it. 1998-12-06 11:36:24 +00:00
Archie Cobbs
2127f26023 Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
Robert V. Baron
0f45501efd Don't print diagnostic anymore 1998-12-04 18:44:21 +00:00
Dmitrij Tejblum
5c5926277e Honor MNT_NOATIME.
PR:		8383
Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-29 22:38:57 +00:00
Bruce Evans
1e1c37f1cd Return ENOTTY instead of EBADF for ioctls on dead vnodes. This fixes
tcsetpgrp() on controlling terminals that are no longer associated
with the session of the calling process, not to mention ioctl.2.
1998-11-22 09:19:07 +00:00
Dmitrij Tejblum
bad3d41d83 Support NT VFAT lower case flags.
PR:		8383
(Mostly) Submitted by:	Carl Mascott <cmascott@world.std.com>
1998-11-21 00:20:24 +00:00
Robert V. Baron
b3a2ec1e44 A few bug fixes for Robert Watson 1998-11-16 19:48:26 +00:00
Bruce Evans
c25ded316f Finished updating module event handlers to be compatible with
modeventhand_t.
1998-11-15 15:33:52 +00:00
Robert V. Baron
a6c122eaf6 coda_lookup now passes up an extra flag. But old veni will
be ok; new veni will check /dev/cfs0 to make sure that a new
kernel is running.
Also, a bug in vc_nb_close iff CODA_SIGNAL's were seen has been
fixed.
1998-11-11 20:32:20 +00:00
Peter Wemm
1c5bb3eaa1 add #include <sys/kernel.h> where it's needed by MALLOC_DEFINE() 1998-11-10 09:16:29 +00:00
Peter Wemm
5187e87901 "fix" a warning that has been bugging me for ages. Eliminate a couple
of temporary variables since they are only used once and their types
were the cause of the warnings.
1998-11-09 09:21:25 +00:00
Peter Wemm
7b91328a39 Support KLD. We register and unregister two modules. "coda" (the vfs)
via VFS_SET(), and "codadev" for the cdevsw entry.  From kldstat -v:
 3    1 0xf02c5000 115d8    coda.ko
        Contains modules:
                Id Name
                 2 codadev
                 3 coda
1998-11-03 08:55:06 +00:00
Peter Wemm
8c14bf40a1 Change the #ifdef UNION code into a callable hook. Arrange to have this
set up when unionfs is present, either statically or as a kld module.
1998-11-03 08:01:48 +00:00
Peter Wemm
40c8cfe552 Use TAILQ macros for clean/dirty block list processing. Set b_xflags
rather than abusing the list next pointer with a magic number.
1998-10-31 15:31:29 +00:00
Peter Wemm
44fdad9976 Use vtruncbuf() rather than vinvalbuf() when shortening files. 1998-10-29 09:29:17 +00:00
Robert V. Baron
6f72efa21b Change the way unmounting happens to guarantee that the
client programs are allowed to finish up (coda_call is
forced to complete) and release their locks.  Thus there
is a reasonable chance that the vflush implicit in the
unmount will not get hung on held locks.
1998-10-28 20:31:13 +00:00
Robert V. Baron
e8e04c2b37 Venus must be passed O_CREAT flag on VOP_OPEN iff this is
a creat so that we can will allow a mode 444 file to be
written into.  Sync with the latest coda.h and deal with
collateral damage.
1998-10-28 19:33:50 +00:00
David Greenman
730075613a Added a second argument, "activate" to the vm_page_unwire() call so that
the caller can select either inactive or active queue to put the page on.
1998-10-28 13:37:02 +00:00
Bruce Evans
569555b969 Removed redundant bitrotted checks for major numbers instead of updating
them.
1998-10-26 08:53:13 +00:00
Bruce Evans
65baf8f06b Don't follow null bdevsw pointers. The `major(dev) < nblkdev' test rotted
when bdevsw[] became sparse.  We still depend on magic to avoid having to
check that (v_rdev) device numbers in vnodes are not NODEV.
1998-10-25 19:26:18 +00:00
Poul-Henning Kamp
f5ef029e92 Nitpicking and dusting performed on a train. Removes trivial warnings
about unused variables, labels and other lint.
1998-10-25 17:44:59 +00:00
Robert V. Baron
ecee3646ce Fixes for lkm:
1. use VFS_LKM vs ACTUALLY_LKM_NOT_KERNEL
2. don't pass -DCODA to lkm build
1998-09-29 20:19:45 +00:00
Robert V. Baron
059b1b8277 Cleanup and fix THE bug 1998-09-28 20:52:58 +00:00
Robert V. Baron
435385d6ae Don't lose this file 1998-09-25 17:40:50 +00:00
Robert V. Baron
6a6e8b2134 Put "stray" printouts under DIAGNOSTIC. Make everything build
with DEBUG on.  Add support for lkm.  (The macro's don't work
for me; for a good chuckle look at the end of coda_fbsd.c.)
1998-09-25 17:38:32 +00:00
Søren Schmidt
d024c95599 Remove the SLICE code.
This clearly needs alot more thought, and we dont need this to hunt
us down in 3.0-RELEASE.
1998-09-14 19:56:42 +00:00
Dmitrij Tejblum
5d3e2869e5 Remove unused variable.
Pointed out by:	bde
1998-09-13 15:40:31 +00:00
Dmitrij Tejblum
e27b047ccf Fix a bug related to renaming in root directory. This bug reported by
Cejka Rudolf <cejkar@dcse.fee.vutbr.cz> on freebsd-current in Messaage-Id
<199807141023.MAA09803@kazi.dcse.fee.vutbr.cz>.

Reviewed by:	bde
1998-09-13 15:39:01 +00:00
Robert V. Baron
d3459488ae Finish conversion of cfs -> coda 1998-09-13 13:57:59 +00:00
Poul-Henning Kamp
649c00db71 various nits that didn't make it through the brucefilter. 1998-09-12 20:21:54 +00:00
Robert V. Baron
9afcea2f4a All the references to cfs, in symbols, structs, and strings
have been changed to coda.  (Same for CFS.)
1998-09-11 18:50:17 +00:00
Bruce Evans
8994ca3ce9 Removed statically configured mount type numbers (MOUNT_*) and all
references to them.

The change a couple of days ago to ignore these numbers in statically
configured vfsconf structs was slightly premature because the cd9660,
cfs, devfs, ext2fs, nfs vfs's still used MOUNT_* instead of the number
in their vfsconf struct.
1998-09-07 13:17:06 +00:00
Guido van Rooij
a031dfd5e2 Fix problem reported on bugtraq: check permission of device mounted
for non-root users. Fortunately, the default for vfs.usermount is 0.
Tested by:	"Jan B. Koum " <jkb@best.com
1998-09-07 07:20:30 +00:00
Robert V. Baron
03507b2123 Clean LINT 1998-09-06 20:01:34 +00:00
Poul-Henning Kamp
0375c9f2b8 Add a new vnode op, VOP_FREEBLKS(), which filesystems can use to inform
device drivers about sectors no longer in use.

Device-drivers receive the call through d_strategy, if they have
D_CANFREE in d_flags.

This allows flash based devices to erase the sectors and avoid
pointlessly carrying them around in compactions.

Reviewed by:	Kirk Mckusick, bde
Sponsored by:	M-Systems (www.m-sys.com)
1998-09-05 14:13:12 +00:00
Doug Rabson
e69763a315 Cosmetic changes to the PAGE_XXX macros to make them consistent with
the other objects in vm.
1998-09-04 08:06:57 +00:00
Robert V. Baron
41159be768 Pass2 complete 1998-09-02 19:09:53 +00:00
Robert V. Baron
e19a190886 Very Preliminary Coda 1998-08-29 21:14:52 +00:00
Poul-Henning Kamp
a9ea5c0c51 sort the prototypes 1998-08-25 17:48:54 +00:00
Poul-Henning Kamp
07fe032454 Last commit managed to get mangled somehow. 1998-08-24 18:23:18 +00:00
Poul-Henning Kamp
1d9b3ba13d Remove the last remaining evidence of B_TAPE.
Reclaim 3 unused bits in b_flags
1998-08-24 17:47:25 +00:00
Bruce Evans
4e9a89772a Enabled Lite2 fix for reading from dead ttys. 1998-08-23 11:43:29 +00:00
Bruce Evans
0492d857d1 Removed unused includes. 1998-08-17 19:09:36 +00:00
Bruce Evans
86a14a7a0a Use [u]intptr_t instead of [u_]long for casts between pointers and
integers.  Don't forget to cast to (void *) as well.
1998-08-16 01:21:52 +00:00
Bruce Evans
89785a1654 Fixed printf format errors. 1998-07-30 17:40:45 +00:00
Alexander Langer
f35f7d0dfd Style fixes and a bug fix: don't remove the exit handler if unmount
fails.

Submitted by:	bde
1998-07-27 22:47:17 +00:00
Alexander Langer
3f47ee5c4d A better solution to the rm_at_exit problem: Register the exit function
during first mount.  Unregister the exit function at last unmount.

Concept by:	sef
Reviewed by:	sef
Implemented by:	alex
1998-07-27 01:07:01 +00:00
Alexander Langer
ca2be56ff9 Override the default VFS LKM dispatch functions so that a module
unload function can be provided (this is necessary to unregister
the at_exit handler).
1998-07-25 15:52:44 +00:00
Bruce Evans
15c7382561 Cast pointers to [u]intptr_t instead of to [unsigned] long. 1998-07-15 04:17:55 +00:00
Bruce Evans
a23d65bfc8 Cast pointers to uintptr_t/intptr_t instead of to u_long/long,
respectively.  Most of the longs should probably have been
u_longs, but this changes is just to prevent warnings about
casts between pointers and integers of different sizes, not
to fix poorly chosen types.
1998-07-15 02:32:35 +00:00
Bruce Evans
ac1e407b32 Fixed printf format errors. 1998-07-11 07:46:16 +00:00
Bruce Evans
96eb19e1a3 Quick fix for type mismatches which were fatal if longs aren't 32
bits.  We used a private, wrong, version of `struct dirent' to help
break getdirentries(), and we use a silly check that the size of this
struct is a power of 2 to help break mount() if getdirentries() would
not work.  This fix just changes the struct to match `struct dirent'
(except for the name length).
1998-07-07 04:08:44 +00:00
Julian Elischer
f7ea2f55d1 There is no such thing any more as "struct bdevsw".
There is only cdevsw (which should be renamed in a later edit to deventry
or something). cdevsw contains the union of what were in both bdevsw an
cdevsw entries.  The bdevsw[] table stiff exists and is a second pointer
to the cdevsw entry of the device. it's major is in d_bmaj rather than
d_maj. some cleanup still to happen (e.g. dsopen now gets two pointers
to the same cdevsw struct instead of one to a bdevsw and one to a cdevsw).

rawread()/rawwrite() went away as part of this though it's not strictly
the same  patch, just that it involves all the same lines in the drivers.

cdroms no longer have write() entries (they did have rawwrite (?)).
tapes no longer have support for bdev operations.

Reviewed by: Eivind Eklund and Mike Smith
	Changes suggested by eivind.
1998-07-04 22:30:26 +00:00
Julian Elischer
fd5d1124e2 VOP_STRATEGY grows an (struct vnode *) argument
as the value in b_vp is often not really what you want.
(and needs to be frobbed). more cleanups will follow this.
Reviewed by: Bruce Evans <bde@freebsd.org>
1998-07-04 20:45:42 +00:00
Dmitrij Tejblum
6bfc1a02b1 Remove "not hungly" panics. Cookies now used by the linux and ibcs2
emulators. The emulators assume that filesystem may just ignore cookies, and
handle this case correctly. So we just ignore cookies.

Also sync *_readdir "prototypes" with reality.
1998-06-25 16:54:41 +00:00
Bruce Evans
a395dbb153 Avoid a 64-bit division in procfs_readdir(). Fixed related overflows.
Check args using the same expression as in fdesc and kernfs.  The check
was actually already correct, modulo overflow.  It could be tightened
up to either allow huge (aligned) offsets, treating them as EOF, or
disallow all offsets beyond EOF.

Didn't fix invalid address calculation &foo[i] where i may be out of
bounds.

Didn't fix shooting of foot using a private unportable dirent struct.
1998-06-14 12:53:39 +00:00
Bruce Evans
a41878a77a Avoid a 64-bit division in fdesc_readdir(). Fixed related overflows
and missing arg checking.

Panic instead of returning bogus error codes or forgetting to check
all cases if fdesc_readdir() gets called for a non-directory.  This
can't happen.
1998-06-14 08:46:41 +00:00
Doug Rabson
9d8b200937 Make these files compile. 1998-06-10 21:21:31 +00:00
Alexander Langer
6ead682113 ENOPNOTSUPP --> EOPNOTSUPP
PR:		6906
Submitted by:	Steven G. Kargl <kargl@troutmask.apl.washington.edu>
1998-06-10 19:56:06 +00:00
Dmitrij Tejblum
40b0939a15 Back out previous change. This behavior is at least completely
"susv2"-compliant.
1998-06-10 13:46:46 +00:00
Dmitrij Tejblum
75065d2cd8 Also return EOPNOTSUPP rather than EINVAL for not supported owner and group
changes.
1998-06-10 11:36:01 +00:00
Peter Wemm
7a204420d3 Don't silently accept attempts to change flags where they are not
supported.
1998-06-10 06:34:57 +00:00
Peter Wemm
c3a24f69d9 Return EOPNOTSUPP rather than EINVAL for flags that are not supported. 1998-06-10 06:30:31 +00:00
Dmitrij Tejblum
ffbdd68eba Fix typo in a comment. 1998-06-09 13:20:29 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
John Dyson
cf2819ccb8 Make flushing dirty pages work correctly on filesystems that
unexpectedly do not complete writes even with sync I/O requests.
This should help the behavior of mmaped files when using
softupdates (and perhaps in other circumstances also.)
1998-05-21 07:47:58 +00:00
Tor Egge
afc6ea238f Disallow reading the current kernel stack. Only the user structure and
the current registers should be accessible.
Reviewed by:	David Greenman <dg@root.com>
1998-05-19 00:00:14 +00:00