| Commit message (Collapse) | Author | Age | Files | Lines |
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relevant fsck_xxx utility.
MFC after: 1 week
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1. 50+% of NO_PIE use is fixed by adding -fPIC to INTERNALLIB and other
build-only utility libraries.
2. Another 40% is fixed by generating _pic.a variants of various libraries.
3. Some of the NO_PIE use is a bit absurd as it is disabling PIE (and ASLR)
where it never would work anyhow, such as csu or loader. This suggests
there may be better ways of adding support to the tree. Many of these
cases can be fixed such that -fPIE will work but there is really no
reason to have it in those cases.
4. Some of the uses are working around hacks done to some Makefiles that are
really building libraries but have been using bsd.prog.mk because the code
is cleaner. Had they been using bsd.lib.mk then NO_PIE would not have
been needed.
We likely do want to enable PIE by default (opt-out) for non-tree consumers
(such as ports). For in-tree though we probably want to only enable PIE
(opt-in) for common attack targets such as remote service daemons and setuid
utilities. This is also a great performance compromise since ASLR is expected
to reduce performance. As such it does not make sense to enable it in all
utilities such as ls(1) that have little benefit to having it enabled.
Reported by: kib
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This is currently an opt-in build flag. Once ASLR support is ready and stable
it should changed to opt-out and be enabled by default along with ASLR.
Each application Makefile uses opt-out to ensure that ASLR will be enabled by
default in new directories when the system is compiled with PIE/ASLR. [2]
Mark known build failures as NO_PIE for now.
The only known runtime failure was rtld.
[1] http://www.bsdcan.org/2014/schedule/events/452.en.html
Submitted by: Shawn Webb <lattera@gmail.com>
Discussed between: des@ and Shawn Webb [2]
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file system type. If this fails, fsck will fail with
"unknown file system type" message.
PR: 188214
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- sprinkle const
- add volatile qualifier to avoid vfork clobbering
Inspired by: NetBSD
PR: bin/139802
Reviewed by: ed
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- rename some other vars too
- merge NetBSD license changes
Obtained from: NetBSD
PR: bin/139802
Reviewed by: ed
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These tools declare global variables without using the static keyword,
even though their use is limited to a single C-file, or without placing
an extern declaration of them in the proper header file.
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file.
MFC after: 1 month
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Suggested by: Mikhail Teterin (mi@)
MFC after: 1 week
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err() to a return in r106254.
MFC after: 1 week
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system checking. However, if the file system is not clean, perform a
full fsck.
Reviewed by: delphij
Obtained from: Juniper Networks
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per letter dated July 22, 1999.
Approved by: core, imp
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Declare perror(). We define and use a home made version of perror(3)
that can't simply be removed (although it has the same interface as
perror(3)) since it is very different (it prints on stdout, doesn't
always print the program name, and sometimes exits). Declare it to
get a reminder of this brokenness when WARNS is increased enough.
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became garbage when block devices were axed and were removed a few
months later, but they came back (with hotroot renamed to hot + hotroot())
when the NetBSD fsck was mismerged.
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- Don't use errexit() to (mis)implement usage(). Using errexit() just
gave the bogus exit code 8.
- Fixed 3 other style bugs in usage().
fsck/fsutil.[ch]:
- Garbage-collected errexit(). It is essentially just one of NetBSD's
fsck_ext2fs error printing functions, but we don't have fsck_ext2fs
and the function is unsuitable for use there too (since pfatal() is
also used and it printf to a different stream).
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Don't define DKTYPENAMES without using it.
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description of this option was removed in v. 1.22.
PR: docs/54880
Submitted by: Lukas Ertl <l.ertl@univie.ac.at>
Approved by: ceri (mentor)
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This simplifies the code path and makes the default path easy to override
in the /rescue case.
Submitted by: Tim Kientzle <kientzle@acm.org>
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where we want to take the disklabel filesystem type of "4.2BSD" and use
fsck_4.2bsd on those filesystems.
Add a comment about why the code is there, now that we know:
* XXX This is a kludge to make automatic filesystem type guessing
* from the disklabel work for "4.2BSD" filesystems. It does a
* very limited subset of transliteration to a normalised form of
* filesystem name, and we do not seem to enforce a filesystem
* name character set.
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upper-case alphabetical characters to lower-case ones, and spaces to dashes.
The person who added this when bringing the code from NetBSD has no idea why
he added it, and nobody on freebsd-fs came up with any cases where the icky
part (the conversion of spaces to underscores) was needed. The removal of
the upper-case conversion follows an even more obvious logic: it avoids any
sort of namespace issues. People using StUdLy caps for filesystem names
deserve everything they get. Otherwise, Efs and efs might be totally different
things, but would use the same fsck. And we don't want that, right? That
just provokes the sort of foot-shooting this would prevent.
If you have problems with this, I'll walk you through using sed on your fstab,
cause the only way you could have problems is if you spelled ufs as "UFS".
Most likely, you haven't done that.
MFC after: 1 month
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Approved by: re
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Also change one case of blatant __progname abuse (several more remain)
This commit does not touch anything in src/{contrib,crypto,gnu}/.
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acceptable (documented) getprogname(3).
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o ansi function prototypes
o unifdef -D__STDC__
o __dead2 on usage prototype
o remove now-bogus main prototype
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Binary builds that cannot handle this must explicitly set WARNS=0.
Reviewed by: mike
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as __printflike()/__printf0like(), adding const, or adding missing "%s"
format strings, as appropriate.
MFC after: 2 weeks
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Submitted by: Ruslan Ermilov <ru@FreeBSD.org>
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Traditionally, fsck is invoked before the filesystems are mounted
and all checks are done to completion at that time. If background
checking is available, fsck is invoked twice. It is first invoked
at the traditional time, before the filesystems are mounted, with
the -F flag to do checking on all the filesystems that cannot do
background checking. It is then invoked a second time, after the
system has completed going multiuser, with the -B flag to do checking
on all the filesystems that can do background checking. Unlike
the foreground checking, the background checking is started
asynchonously so that other system activity can proceed even on
the filesystems that are being checked.
At the moment, only the fast filesystem supports background checking.
To be able to do background checking, a filesystem must have been
running with soft updates, not have been marked as needing a
foreground check, and be mounted and writable when the background
check is to be done (i.e., not listed as `noauto' in /etc/fstab).
These changes are the final piece needed to support background
filesystem checking. They will not have any effect until you update
your /etc/rc to invoke fsck in its new mode of operation. I am
still playing around with exactly what those changes should be
and should be committing them later this week.
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In Preen mode we only checked one partition per disk device.
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Consider this /etc/fstab:
# Device Mountpoint FStype Options Dump Pass#
/dev/ad1s1b none swap sw 0 0
/dev/ad0s1b none swap sw 0 0
/dev/ad0s1a / ufs rw 1 1
/dev/ad0s1e /home ufs rw 2 2
/dev/ad1s1e /tmp ufs rw 2 2
/dev/ad1s1f /usr ufs rw 2 2
/dev/ccd0c /syv ufs rw 2 11
proc /proc procfs rw 0 0
ccd0c is striped over /dev/ad0f and /dev/ad1g
Without this pass, fsck in preen mode will check ad0s1a first,
and then issue three processes in parallel:
One process doing ad0s1e
One process doing ad1s1e and ad1s1f
One process doing ccd0c
There is no way to tell it that ccd0c overlaps ad0 and ad1.
With the patch, it will do it this way:
pass 2:
One process doing ad0s1e
One process doing ad1s1e and ad1s1f
and when they are complete:
pass 11:
One process doing ccd0c
This is much faster and more sane.
Valid pass numbers are anything from 1 to INTMAX-1.
I retired the '-l' option which tried to allow people to do
something like this, but which didn't work and which complicated
the code an awful lot.
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- MAN[1-9] -> MAN.
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