Commit Graph

65 Commits

Author SHA1 Message Date
Kirk McKusick
34816cb9ae Move the pointers stored in the superblock into a separate
fs_summary_info structure. This change was originally done
by the CheriBSD project as they need larger pointers that
do not fit in the existing superblock.

This cleanup of the superblock eases the task of the commit
that immediately follows this one.

Suggested by: brooks
Reviewed by:  kib
PR:           246983
Sponsored by: Netflix
2020-06-19 01:02:53 +00:00
Kirk McKusick
fb14e73cb4 Normally when an attempt is made to mount a UFS/FFS filesystem whose
superblock has a check-hash error, an error message noting the
superblock check-hash failure is printed and the mount fails. The
administrator then runs fsck to repair the filesystem and when
successful, the filesystem can once again be mounted.

This approach fails if the filesystem in question is a root filesystem
from which you are trying to boot. Here, the loader fails when trying
to access the filesystem to get the kernel to boot. So it is necessary
to allow the loader to ignore the superblock check-hash error and make
a best effort to read the kernel. The filesystem may be suffiently
corrupted that the read attempt fails, but there is no harm in trying
since the loader makes no attempt to write to the filesystem.

Once the kernel is loaded and starts to run, it attempts to mount its
root filesystem. Once again, failure means that it breaks to its prompt
to ask where to get its root filesystem. Unless you have an alternate
root filesystem, you are stuck.

Since the root filesystem is initially mounted read-only, it is
safe to make an attempt to mount the root filesystem with the failed
superblock check-hash. Thus, when asked to mount a root filesystem
with a failed superblock check-hash, the kernel prints a warning
message that the root filesystem superblock check-hash needs repair,
but notes that it is ignoring the error and proceeding. It does
mark the filesystem as needing an fsck which prevents it from being
enabled for writing until fsck has been run on it. The net effect
is that the reboot fails to single user, but at least at that point
the administrator has the tools at hand to fix the problem.

Reported by:    Rick Macklem (rmacklem@)
Discussed with: Warner Losh (imp@)
Sponsored by:   Netflix
2018-12-06 00:09:39 +00:00
Ed Maste
d8ba45e213 Revert r313780 (UFS_ prefix) 2018-03-17 12:59:55 +00:00
Ed Maste
1e2b9afca9 Prefix UFS symbols with UFS_ to reduce namespace pollution
Followup to r313780.  Also prefix ext2's and nandfs's versions with
EXT2_ and NANDFS_.

Reported by:	kib
Reviewed by:	kib, mckusick
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D9623
2018-03-17 01:48:27 +00:00
Kirk McKusick
dffce2150e Refactoring of reading and writing of the UFS/FFS superblock.
Specifically reading is done if ffs_sbget() and writing is done
in ffs_sbput(). These functions are exported to libufs via the
sbget() and sbput() functions which then used in the various
filesystem utilities. This work is in preparation for adding
subperblock check hashes.

No functional change intended.

Reviewed by: kib
2018-01-26 00:58:32 +00:00
Pedro F. Giffuni
1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00
Bryan Drewery
ea825d0274 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
Ed Maste
1dc349ab95 prefix UFS symbols with UFS_ to reduce namespace pollution
Specifically:
  ROOTINO -> UFS_ROOTINO
  WINO -> UFS_WINO
  NXADDR -> UFS_NXADDR
  NDADDR -> UFS_NDADDR
  NIADDR -> UFS_NIADDR
  MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)

Also prefix ext2's and nandfs's NDADDR and NIADDR with EXT2_ and NANDFS_

Reviewed by:	kib, mckusick
Obtained from:	NetBSD
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D9536
2017-02-15 19:50:26 +00:00
Pedro F. Giffuni
6e560add61 quot: make use of our rounddown() macro when <sys/param.h> is available.
No functional change.
2016-05-02 02:13:22 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
Simon J. Gerraty
23090366f7 Sync from head 2012-11-04 02:52:03 +00:00
Matthew D Fleming
b424efd5b1 Fix usr.bin/ and usr.sbin/ build with a 64-bit ino_t.
Original code by:	Gleb Kurtsou
2012-09-27 23:31:19 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Kirk McKusick
7649cb0043 The dump, fsck_ffs, fsdb, fsirand, newfs, makefs, and quot utilities
include sys/time.h instead of time.h. This include is incorrect as
per the manpages for the APIs and the POSIX definitions. This commit
replaces sys/time.h where necessary with time.h.

The commit also includes some minor style(9) header fixup in newfs.

This commit is part of a larger effort by Garrett Cooper started in
//depot/user/gcooper/posix-conformance-work/ -- to make FreeBSD more
POSIX compliant.

Submitted by:  Garrett Cooper   yanegomi at gmail dot com
2011-01-24 06:17:05 +00:00
Ed Schouten
b4eca7675a Make `quot -a' work when we've got slashes in the device name.
A very long time ago we had raw device nodes. quot(8) was supposed to
use these  when running `quot -a'. For some reason the code got once
changed to strip the device name until it reaches the last slash. This
is not reliable, because this means /dev/mirror/foo will be stripped to
/dev/foo.

This bug also exists on RELENG_7 and RELENG_6, but I think I'll just
merge them back somewhere after the upcoming releases. There's no rush.

MFC after:	2 months
2008-09-14 11:50:19 +00:00
Dag-Erling Smørgrav
8f518424d9 Drag this code kicking and screaming into the twenty-first century. 2008-07-02 15:51:59 +00:00
Maxim Konovalov
c433b438f2 o Check we have a non-NULL pointer to a super block before dereference it.
PR:		misc/103822
Submitted by:	Dmitry Stefankov
MFC after:	2 weeks
2006-09-30 07:34:20 +00:00
David Malone
bee3d34f79 The quot command expected all inodes contents to be valid, however
on UFS2 inodes are initialised as they are needed, rather than at
newfs time. When quot encountered these inodes it could produce
crazy results.

Now, on UFS2 filesystems, quot's get_inode function will bzero
unallicated inodes before passing them back to a caller. This is
how UFS2 initialises new inodes, so this should work OK.

Also, while I'm here, make quot exit with an error if it finds
inodes of an unknown type. This should help catch future problems
of this type.

Reviewed by:	iedowse
MFC after:	1 week
2006-02-25 23:50:15 +00:00
Stefan Farfeleder
18b51f792f Remove unused variables. 2005-04-09 14:59:10 +00:00
Ruslan Ermilov
59a3c79da6 Sort sections. 2005-01-18 20:02:45 +00:00
Ruslan Ermilov
07bfccd71e Mechanically kill hard sentence breaks. 2004-07-02 23:13:00 +00:00
David E. O'Brien
b728350ee6 Use __FBSDID over rcsid[]. Protect copyright[] where needed. 2003-05-03 21:06:42 +00:00
Tim J. Robbins
6c45bec6b6 Repair the UFS2 superblock location consistency check so that it succeeds
on valid superblocks instead of issuing the error "not a BSD filesystem".
fs_sblockloc is a byte offset, not a fragment number. This change makes
quot work properly on UFS2 filesystems, which is important now that UFS2
is the default.
2003-04-25 10:07:50 +00:00
David E. O'Brien
052238b16c style.Makefile(5) 2003-04-04 17:49:21 +00:00
Tom Rhodes
bd562ff57f Remove contractions.
Use `Force' in place of `Cause' which sounds better.
2003-02-18 03:34:32 +00:00
Mike Barcroft
bc6ba9aec6 Back out rev 1.19; getbsize(3)'s original interface has been restored. 2002-12-30 18:21:47 +00:00
Ruslan Ermilov
8d5d039f80 Uniformly refer to a file system as "file system".
Approved by:	re
2002-12-12 17:26:04 +00:00
Andrew Gallatin
f6a807d6fb another int * to size_t * change for getbsize() to make it compile
on LP64 hosts
2002-10-24 17:43:56 +00:00
Andrey A. Chernov
bf3c8a5270 Use POSIX-style sort syntax in example 2002-09-24 20:15:11 +00:00
Philippe Charnier
490d5836b5 The .Nm utility 2002-07-14 14:47:15 +00:00
Kirk McKusick
1c85e6a35d This commit adds basic support for the UFS2 filesystem. The UFS2
filesystem expands the inode to 256 bytes to make space for 64-bit
block pointers. It also adds a file-creation time field, an ability
to use jumbo blocks per inode to allow extent like pointer density,
and space for extended attributes (up to twice the filesystem block
size worth of attributes, e.g., on a 16K filesystem, there is space
for 32K of attributes). UFS2 fully supports and runs existing UFS1
filesystems. New filesystems built using newfs can be built in either
UFS1 or UFS2 format using the -O option. In this commit UFS1 is
the default format, so if you want to build UFS2 format filesystems,
you must specify -O 2. This default will be changed to UFS2 when
UFS2 proves itself to be stable. In this commit the boot code for
reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c)
as there is insufficient space in the boot block. Once the size of the
boot block is increased, this code can be defined.

Things to note: the definition of SBSIZE has changed to SBLOCKSIZE.
The header file <ufs/ufs/dinode.h> must be included before
<ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and
ufs_lbn_t.

Still TODO:
Verify that the first level bootstraps work for all the architectures.
Convert the utility ffsinfo to understand UFS2 and test growfs.
Add support for the extended attribute storage. Update soft updates
to ensure integrity of extended attribute storage. Switch the
current extended attribute interfaces to use the extended attribute
storage. Add the extent like functionality (framework is there,
but is currently never used).

Sponsored by: DARPA & NAI Labs.
Reviewed by:	Poul-Henning Kamp <phk@freebsd.org>
2002-06-21 06:18:05 +00:00
Dag-Erling Smørgrav
9f60cc9e43 Unbreak Alpha build. 2002-05-15 08:01:31 +00:00
Poul-Henning Kamp
386f1d1bf2 Sigh... Yet a BBSIZE breakage. 2002-05-12 21:43:02 +00:00
Mike Heffner
28644e448a Reorder WARNS line for style.
Pointed out by:	bde
2001-12-10 21:13:36 +00:00
Mike Heffner
57cdc15247 WARNS=2 cleanup.
PR:		bin/32567
MFC after:	2 weeks
2001-12-09 07:51:26 +00:00
Ruslan Ermilov
a4c37c816b mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 15:12:08 +00:00
Ruslan Ermilov
58059593e5 mdoc(7) police: cosmetics. 2001-07-05 09:44:08 +00:00
Jens Schweikhardt
5935bbab55 Remove ncheck in an example; FreeBSD does not have it.
PR:		10158
Submitted by:	Remy Card <card@ens.uvsq.fr>
MFC after:	2 weeks
2001-06-16 09:05:24 +00:00
Ruslan Ermilov
345e52e742 - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:42:20 +00:00
Ruslan Ermilov
c73e22c3d4 Set the default manual section for usr.sbin/ to 8. 2001-03-20 18:17:26 +00:00
Paul Saab
81f1ec27ee Allow for the last arugment to be the mountpoint of a filesystem,
not just the device.
2001-03-10 12:12:47 +00:00
David E. O'Brien
1a37aa566b Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.
2000-12-09 09:35:55 +00:00
Ruslan Ermilov
e97407b4f2 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00
Mike Smith
5744d83648 /dev/rXXX -> /dev/XXX 2000-05-31 01:04:22 +00:00
Mike Pritchard
14201ae6dc Fix various man pages to stop abusing the .Bx macro to generate
the string "FreeBSD".  Use the .Fx macro instead.
2000-01-23 02:10:01 +00:00