FreeBSD src
Go to file
Eugene Grosbein 1a356b8b90 ipfw nat and natd support multiple aliasing instances with "nat global" feature
that chooses right alias_address for outgoing packets that already have
corresponding state in one of aliasing instances. This feature works just fine
for ICMP, UDP, TCP and SCTP packes but not for others. For example,
outgoing PPtP/GRE packets always get alias_address of latest configured
instance no matter whether such packets have corresponding state or not.

This change unbreaks translation of transit PPtP/GRE connections
for "nat global" case fixing a bug in static ProtoAliasOut() function
that ignores its "create" argument and performs translation
regardless of its value. This static function is called only
by LibAliasOutLocked() function and only for packers other than
ICMP, UDP, TCP and SCTP. LibAliasOutLocked() passes its "create"
argument unmodified.

We have only two consumers of LibAliasOutLocked() in the source tree
calling it with "create" unequal to 1: "ipfw nat global" code and similar
natd code having same problem. All other consumers of LibAliasOutLocked()
call it with create = 1 and the patch is "no-op" for such cases.

PR:		218968
Approved by:	ae, vsevolod (mentor)
MFC after:	1 week
2017-05-10 19:41:52 +00:00
bin DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
cddl MFV 316894 2017-04-25 17:57:43 +00:00
contrib Fix parsing of 'vmov Q<n>.F32,Q<n>.F32' instruction. 2017-05-10 05:07:41 +00:00
crypto Fix linking with lld by marking OPENSSL_armcap_P as hidden. 2017-04-07 12:41:57 +00:00
etc Fix the build after r317942 by adding usr.bin/csplit to BSD.tests.dist 2017-05-08 17:13:00 +00:00
gnu Add a new GDB_LIBEXEC option to install gdb and kgdb to /usr/libexec. 2017-04-25 18:08:56 +00:00
include <stdio.h>: ftello() and fseeko() were in SUSv2, so extend visibility. 2017-04-29 18:48:05 +00:00
kerberos5 kerberos5: normalize paths using SRCTOP-relative paths or :H when possible 2017-03-04 11:34:36 +00:00
lib libstand: NULL pointer dereference in rarp 2017-05-10 15:35:41 +00:00
libexec DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
release More ATM and NATM removal 2017-04-27 16:05:12 +00:00
rescue DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
sbin DIRDEPS_BUILD: Update dependencies. 2017-05-09 01:48:23 +00:00
secure Fix invalid .o SRCS from r314527. 2017-05-09 01:48:02 +00:00
share SUBDIR_OVERRIDE: Note how to restore historical behavior pre-r289725. 2017-05-10 00:02:24 +00:00
sys ipfw nat and natd support multiple aliasing instances with "nat global" feature 2017-05-10 19:41:52 +00:00
targets DIRDEPS_BUILD: Connect new directories. 2017-05-09 01:48:14 +00:00
tests Remove unused constant (PATH_TEMPLATE) 2017-05-09 20:26:43 +00:00
tools [net80211] add another hard-learnt lesson about DWDS setup 2017-05-03 07:53:15 +00:00
usr.bin Don't depend on assert(3) getting evaluated 2017-05-10 16:06:22 +00:00
usr.sbin Don't depend on assert(3) getting evaluated 2017-05-10 16:06:22 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2016-12-31 12:41:42 +00:00
LOCKS Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Due to time constraints remove myself as a vmm(4) maintainer. 2017-04-15 22:42:23 +00:00
Makefile Cache compiler metadata and reuse it at installworld time. 2017-04-13 22:07:34 +00:00
Makefile.inc1 Add a -DNO_LIBS to skip building the libraries phase as well. 2017-05-09 23:58:07 +00:00
Makefile.libcompat Support skipping 'make obj' tree-walk. 2017-05-09 20:21:38 +00:00
ObsoleteFiles.inc Revert r317446 and bring back cy(4). 2017-04-27 16:14:32 +00:00
README README: remove nonexistent 'games' directory. 2016-05-18 10:43:13 +00:00
README.md Remove hard line breaks from README.md 2017-03-01 15:39:58 +00:00
UPDATING Revert r317432 and add a new entry for r316527. 2017-04-26 16:50:54 +00:00

FreeBSD Source:

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.

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