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Kirk McKusick ec888383cf Continuing efforts to provide hardening of FFS, this change adds a
check hash to the superblock. If a check hash fails when an attempt
is made to mount a filesystem, the mount fails with EINVAL (Invalid
argument). This avoids a class of filesystem panics related to
corrupted superblocks. The hash is done using crc32c.

Check hases are added only to UFS2 and not to UFS1 as UFS1 is primarily
used in embedded systems with small memories and low-powered processors
which need as light-weight a filesystem as possible.

Reviewed by:  kib
Tested by:    Peter Holm
Sponsored by: Netflix
2018-10-23 21:10:06 +00:00
bin stty.1: Document kern.tty_info_kstacks behavior (r339471) 2018-10-20 18:53:32 +00:00
cddl Add support for send, receive and state-change DTrace providers for 2018-08-22 21:23:32 +00:00
contrib Pick f80c97e477d1b3fe7778c65d9439d673738b4131 from upstream: 2018-10-23 14:11:35 +00:00
crypto Try harder to sanitize the environment before running configure. 2018-10-10 22:29:06 +00:00
etc Move hosts.allow to lib/libwrap/ 2018-09-22 13:17:30 +00:00
gnu Bring back the WARNS level to what it used to be to please gcc arches at least 2018-10-20 21:33:34 +00:00
include Reduce NL_ARGMAX to 4096 to match Linux. 2018-10-04 21:55:58 +00:00
kerberos5 Update the existing heimdal implementation for OpenSSL 1.1. 2018-10-05 16:35:24 +00:00
lib Follow up on r331936. gets_s(3) will also fail in the same way that 2018-10-23 14:16:02 +00:00
libexec rc.initdiskless: fix commentary grammar after r339465 2018-10-20 18:46:36 +00:00
release Add debug.witness.trace=0 back to the installer sysctl.conf(5), 2018-10-23 14:38:08 +00:00
rescue Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
sbin Continuing efforts to provide hardening of FFS, this change adds a 2018-10-23 21:10:06 +00:00
secure openssh: cherry-pick OpenSSL 1.1.1 compatibility 2018-10-06 14:38:34 +00:00
share netmap: add man page for the bridge program 2018-10-23 15:34:43 +00:00
stand loader: biosdisk interface should be able to cope with 4k sectors 2018-10-23 14:44:32 +00:00
sys Continuing efforts to provide hardening of FFS, this change adds a 2018-10-23 21:10:06 +00:00
targets Add -b/-l options to localedef(1) to specify output endianness and use 2018-10-20 20:51:05 +00:00
tests Reparent a child of pdfork(2) to its reaper when the procdesc is closed. 2018-10-16 20:06:56 +00:00
tools netmap: add man page for the bridge program 2018-10-23 15:34:43 +00:00
usr.bin Add an IMPLEMENTATION NOTES section to ldd.1. 2018-10-23 13:49:53 +00:00
usr.sbin In bhyve's fbuf emulation improve the overall "usage" message and 2018-10-22 11:43:43 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.gitattributes Remove spuriously added svn properties 2018-08-02 18:37:02 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Remove 'All Rights Reserved' from the collection copyright and templates. 2018-05-09 02:02:49 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Add pointer to freebsd-numerics for libm. 2018-07-16 15:29:32 +00:00
Makefile Don't include the broken riscv64sf TARGET_ARCH in universe. 2018-10-09 22:22:15 +00:00
Makefile.inc1 sort {delete,check}-old* output 2018-10-23 13:00:11 +00:00
Makefile.libcompat Fix non-FreeBSD host lib32 build for TARGET=amd64 2018-08-23 18:19:10 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Remove mse(4) from tree 2018-10-22 02:34:10 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Add updating entry for DRM 2018-10-20 19:14:46 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

Source Roadmap:

bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html