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Pawel Jakub Dawidek 46e3447026 Enable BIO_DELETE passthru in GELI, so TRIM/UNMAP can work as expected when
GELI is used on a SSD or inside virtual machine, so that guest can tell
host that it is no longer using some of the storage.

Enabling BIO_DELETE passthru comes with a small security consequence - an
attacker can tell how much space is being really used on encrypted device and
has less data no analyse then. This is why the -T option can be given to the
init subcommand to turn off this behaviour and -t/T options for the configure
subcommand can be used to adjust this setting later.

PR:		198863
Submitted by:	Matthew D. Fuller fullermd at over-yonder dot net

This commit also includes a fix from Fabian Keil freebsd-listen at
fabiankeil.de for 'configure' on onetime providers which is not strictly
related, but is entangled in the same code, so would cause conflicts if
separated out.
2015-08-08 09:51:38 +00:00
bin Cast uid and gid to the correct type for display to solve segfault in ls(1) on 32bit arches 2015-07-24 20:20:59 +00:00
cddl - Use an explicit "depends_on module kernel" guard in DTrace libraries that 2015-08-07 19:56:22 +00:00
contrib Fix variable 'old' is used uninitialized whenever '&&' condition is false. 2015-08-07 06:15:01 +00:00
crypto Fix multiple OpenSSH vulnerabilities. 2015-07-28 19:58:38 +00:00
etc Change KPI of how device drivers that provide wireless connectivity interact 2015-08-07 11:43:14 +00:00
games Fix a typo. 2015-07-02 11:46:35 +00:00
gnu Remove old GNU Binutils tools now provided by ELF Tool Chain 2015-08-05 18:30:00 +00:00
include Use the __sentinel attribute. 2015-07-08 16:21:10 +00:00
kerberos5 Fix a typo introduced in r262209. 2015-06-18 21:18:43 +00:00
lib Disable SSE in libthr 2015-08-05 12:53:55 +00:00
libexec Disable SSE in libthr 2015-08-05 12:53:55 +00:00
release Fix a typo. 2015-08-06 14:13:01 +00:00
rescue Add META_MODE support. 2015-06-13 19:20:56 +00:00
sbin Enable BIO_DELETE passthru in GELI, so TRIM/UNMAP can work as expected when 2015-08-08 09:51:38 +00:00
secure Merge OpenSSL 1.0.1p. 2015-07-09 17:07:45 +00:00
share Import OpenBSD's iwm WiFi driver for Intel 3160/7260/7265. 2015-08-08 06:06:48 +00:00
sys Enable BIO_DELETE passthru in GELI, so TRIM/UNMAP can work as expected when 2015-08-08 09:51:38 +00:00
targets Updated depends 2015-07-03 06:11:54 +00:00
tests Add various tests to ensure that invalid arguments passed to mmap() 2015-08-06 16:14:29 +00:00
tools Change KPI of how device drivers that provide wireless connectivity interact 2015-08-07 11:43:14 +00:00
usr.bin Fix typo introduced in previous commit. 2015-08-07 18:40:44 +00:00
usr.sbin Manpage cleanup. 2015-08-07 10:48:52 +00:00
.arcconfig Add repository.callsign, to help arcanist figure out what repo it's 2015-07-02 22:23:52 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2014-12-31 10:00:43 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Remove cokane@ from MAINTAINERS for 3dfx(4)/tdfx(4) because their email 2014-11-25 05:25:12 +00:00
Makefile Import OpenSSL 1.0.1p. 2015-07-09 16:41:34 +00:00
Makefile.inc1 First cut of DTrace for AArch64. 2015-07-01 15:51:11 +00:00
ObsoleteFiles.inc Add removed tests to ObsoleteFiles.inc 2015-08-02 02:23:30 +00:00
README Import OpenSSL 1.0.1p. 2015-07-09 16:41:34 +00:00
UPDATING Remove guards around overwriting loader.rc and menu.rc 2015-08-06 16:07:27 +00:00

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

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)
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The `buildkernel` and `installkernel` targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process.  See build(7), config(8),
and http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
for more information.

Note: If you want to build and install the kernel with the
`buildkernel` and `installkernel` targets, you might need to build
world before.  More information is available in the handbook.

The kernel configuration files reside in the sys/<arch>/conf
sub-directory.  GENERIC is the default configuration used in release builds.
NOTES contains entries and documentation for all possible
devices, not just those commonly used.


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.

games		Amusements.

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.

sys		Kernel sources.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html