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Jonathan Anderson 69d377fe1b Allow Capsicum capabilities to delegate constrained
access to file system subtrees to sandboxed processes.

- Use of absolute paths and '..' are limited in capability mode.
- Use of absolute paths and '..' are limited when looking up relative
  to a capability.
- When a name lookup is performed, identify what operation is to be
  performed (such as CAP_MKDIR) as well as check for CAP_LOOKUP.

With these constraints, openat() and friends are now safe in capability
mode, and can then be used by code such as the capability-mode runtime
linker.

Approved by: re (bz), mentor (rwatson)
Sponsored by: Google Inc
2011-08-13 09:21:16 +00:00
bin Rename ki_ocomm to ki_tdname and OCOMMLEN to TDNAMLEN. 2011-07-18 20:06:15 +00:00
cddl Fix serious bug in ZIL that can lead to pool corruption 2011-07-30 19:00:31 +00:00
contrib - Merged awk upstream that includes a fix for a bug exposed by kmod_syms.mk. 2011-08-11 10:29:10 +00:00
crypto Fix two more $FreeBSD$ keywords. 2011-08-03 20:21:52 +00:00
etc Revert r224760, and enhance the sed patterns from r224659 to comment out 2011-08-10 20:52:02 +00:00
games Minor typo, fix 2 attributions 2011-06-09 06:10:39 +00:00
gnu Compile fbsd-threads.c. Amongst others this is necessary for a working 2011-08-06 17:53:45 +00:00
include Revert the previous change and add xdr_sizeof 2011-07-10 14:03:13 +00:00
kerberos5 The kerberos5 tools are only used as build tools but not otherwise and 2011-06-25 16:13:56 +00:00
lib Fix a pathname (s,netinet/if_ether.h,net/ethernet.h,). 2011-08-08 03:09:03 +00:00
libexec Pull in some wording to the tftpd.8 man page 2011-07-31 03:18:36 +00:00
release Allow to build a release for stable/[78] on a current box and vise versa. 2011-08-11 13:15:11 +00:00
rescue Finally... Import the latest open-source ZFS version - (SPA) 28. 2011-02-27 19:41:40 +00:00
sbin Gavin documented these alternate options in good faith in r222751 2011-08-06 09:13:09 +00:00
secure Upgrade to OpenSSH 5.8p2. 2011-05-04 07:34:44 +00:00
share Change "options NFSCLIENT" to "options NFSCL" in diskless.8, 2011-08-08 13:13:22 +00:00
sys Allow Capsicum capabilities to delegate constrained 2011-08-13 09:21:16 +00:00
tools Rename CAP_*_KEVENT to CAP_*_EVENT. 2011-08-12 14:26:47 +00:00
usr.bin catstrg() does not set the resulting string length. 2011-08-08 05:22:09 +00:00
usr.sbin Move cxgbtool from usr.sbin to tools/tools. 2011-08-10 22:03:34 +00:00
COPYRIGHT Happy New Year 2011. 2010-12-31 18:07:16 +00:00
LOCKS Update LOCKS syntax. 2008-06-05 19:47:58 +00:00
MAINTAINERS - Remove myself from ncurses maintainer due to ENOTIME 2011-08-10 15:49:24 +00:00
Makefile It's a bit odd, but "make update" in src/ can also update the ports/, 2011-06-16 12:28:37 +00:00
Makefile.inc1 - Merged awk upstream that includes a fix for a bug exposed by kmod_syms.mk. 2011-08-11 10:29:10 +00:00
Makefile.mips Retire TARGET_ABI. 2011-01-07 20:26:33 +00:00
ObsoleteFiles.inc Add more obsolete files. 2011-07-10 15:01:14 +00:00
README Vendor import of OpenSSH 5.8p2 2011-05-03 11:22:37 +00:00
UPDATING Clarify that we broke pfsync(4) backward compat with the pf commit r223637. 2011-06-29 13:12:15 +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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
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, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
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 sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


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.

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