Import tayga 0.9.2 (downloaded 2019-02-14)
Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>
This commit is contained in:
Nico Schottelius
commit
1c43cef4e5
21 changed files with 12277 additions and 0 deletions
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COPYING
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340
COPYING
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GNU GENERAL PUBLIC LICENSE
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Version 2, June 1991
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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||||||
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Preamble
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||||||
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||||||
|
The licenses for most software are designed to take away your
|
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|
freedom to share and change it. By contrast, the GNU General Public
|
||||||
|
License is intended to guarantee your freedom to share and change free
|
||||||
|
software--to make sure the software is free for all its users. This
|
||||||
|
General Public License applies to most of the Free Software
|
||||||
|
Foundation's software and to any other program whose authors commit to
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using it. (Some other Free Software Foundation software is covered by
|
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|
the GNU Library General Public License instead.) You can apply it to
|
||||||
|
your programs, too.
|
||||||
|
|
||||||
|
When we speak of free software, we are referring to freedom, not
|
||||||
|
price. Our General Public Licenses are designed to make sure that you
|
||||||
|
have the freedom to distribute copies of free software (and charge for
|
||||||
|
this service if you wish), that you receive source code or can get it
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||||||
|
if you want it, that you can change the software or use pieces of it
|
||||||
|
in new free programs; and that you know you can do these things.
|
||||||
|
|
||||||
|
To protect your rights, we need to make restrictions that forbid
|
||||||
|
anyone to deny you these rights or to ask you to surrender the rights.
|
||||||
|
These restrictions translate to certain responsibilities for you if you
|
||||||
|
distribute copies of the software, or if you modify it.
|
||||||
|
|
||||||
|
For example, if you distribute copies of such a program, whether
|
||||||
|
gratis or for a fee, you must give the recipients all the rights that
|
||||||
|
you have. You must make sure that they, too, receive or can get the
|
||||||
|
source code. And you must show them these terms so they know their
|
||||||
|
rights.
|
||||||
|
|
||||||
|
We protect your rights with two steps: (1) copyright the software, and
|
||||||
|
(2) offer you this license which gives you legal permission to copy,
|
||||||
|
distribute and/or modify the software.
|
||||||
|
|
||||||
|
Also, for each author's protection and ours, we want to make certain
|
||||||
|
that everyone understands that there is no warranty for this free
|
||||||
|
software. If the software is modified by someone else and passed on, we
|
||||||
|
want its recipients to know that what they have is not the original, so
|
||||||
|
that any problems introduced by others will not reflect on the original
|
||||||
|
authors' reputations.
|
||||||
|
|
||||||
|
Finally, any free program is threatened constantly by software
|
||||||
|
patents. We wish to avoid the danger that redistributors of a free
|
||||||
|
program will individually obtain patent licenses, in effect making the
|
||||||
|
program proprietary. To prevent this, we have made it clear that any
|
||||||
|
patent must be licensed for everyone's free use or not licensed at all.
|
||||||
|
|
||||||
|
The precise terms and conditions for copying, distribution and
|
||||||
|
modification follow.
|
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GNU GENERAL PUBLIC LICENSE
|
||||||
|
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||||
|
|
||||||
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0. This License applies to any program or other work which contains
|
||||||
|
a notice placed by the copyright holder saying it may be distributed
|
||||||
|
under the terms of this General Public License. The "Program", below,
|
||||||
|
refers to any such program or work, and a "work based on the Program"
|
||||||
|
means either the Program or any derivative work under copyright law:
|
||||||
|
that is to say, a work containing the Program or a portion of it,
|
||||||
|
either verbatim or with modifications and/or translated into another
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||||||
|
language. (Hereinafter, translation is included without limitation in
|
||||||
|
the term "modification".) Each licensee is addressed as "you".
|
||||||
|
|
||||||
|
Activities other than copying, distribution and modification are not
|
||||||
|
covered by this License; they are outside its scope. The act of
|
||||||
|
running the Program is not restricted, and the output from the Program
|
||||||
|
is covered only if its contents constitute a work based on the
|
||||||
|
Program (independent of having been made by running the Program).
|
||||||
|
Whether that is true depends on what the Program does.
|
||||||
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|
||||||
|
1. You may copy and distribute verbatim copies of the Program's
|
||||||
|
source code as you receive it, in any medium, provided that you
|
||||||
|
conspicuously and appropriately publish on each copy an appropriate
|
||||||
|
copyright notice and disclaimer of warranty; keep intact all the
|
||||||
|
notices that refer to this License and to the absence of any warranty;
|
||||||
|
and give any other recipients of the Program a copy of this License
|
||||||
|
along with the Program.
|
||||||
|
|
||||||
|
You may charge a fee for the physical act of transferring a copy, and
|
||||||
|
you may at your option offer warranty protection in exchange for a fee.
|
||||||
|
|
||||||
|
2. You may modify your copy or copies of the Program or any portion
|
||||||
|
of it, thus forming a work based on the Program, and copy and
|
||||||
|
distribute such modifications or work under the terms of Section 1
|
||||||
|
above, provided that you also meet all of these conditions:
|
||||||
|
|
||||||
|
a) You must cause the modified files to carry prominent notices
|
||||||
|
stating that you changed the files and the date of any change.
|
||||||
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|
||||||
|
b) You must cause any work that you distribute or publish, that in
|
||||||
|
whole or in part contains or is derived from the Program or any
|
||||||
|
part thereof, to be licensed as a whole at no charge to all third
|
||||||
|
parties under the terms of this License.
|
||||||
|
|
||||||
|
c) If the modified program normally reads commands interactively
|
||||||
|
when run, you must cause it, when started running for such
|
||||||
|
interactive use in the most ordinary way, to print or display an
|
||||||
|
announcement including an appropriate copyright notice and a
|
||||||
|
notice that there is no warranty (or else, saying that you provide
|
||||||
|
a warranty) and that users may redistribute the program under
|
||||||
|
these conditions, and telling the user how to view a copy of this
|
||||||
|
License. (Exception: if the Program itself is interactive but
|
||||||
|
does not normally print such an announcement, your work based on
|
||||||
|
the Program is not required to print an announcement.)
|
||||||
|
|
||||||
|
These requirements apply to the modified work as a whole. If
|
||||||
|
identifiable sections of that work are not derived from the Program,
|
||||||
|
and can be reasonably considered independent and separate works in
|
||||||
|
themselves, then this License, and its terms, do not apply to those
|
||||||
|
sections when you distribute them as separate works. But when you
|
||||||
|
distribute the same sections as part of a whole which is a work based
|
||||||
|
on the Program, the distribution of the whole must be on the terms of
|
||||||
|
this License, whose permissions for other licensees extend to the
|
||||||
|
entire whole, and thus to each and every part regardless of who wrote it.
|
||||||
|
|
||||||
|
Thus, it is not the intent of this section to claim rights or contest
|
||||||
|
your rights to work written entirely by you; rather, the intent is to
|
||||||
|
exercise the right to control the distribution of derivative or
|
||||||
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collective works based on the Program.
|
||||||
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|
||||||
|
In addition, mere aggregation of another work not based on the Program
|
||||||
|
with the Program (or with a work based on the Program) on a volume of
|
||||||
|
a storage or distribution medium does not bring the other work under
|
||||||
|
the scope of this License.
|
||||||
|
|
||||||
|
3. You may copy and distribute the Program (or a work based on it,
|
||||||
|
under Section 2) in object code or executable form under the terms of
|
||||||
|
Sections 1 and 2 above provided that you also do one of the following:
|
||||||
|
|
||||||
|
a) Accompany it with the complete corresponding machine-readable
|
||||||
|
source code, which must be distributed under the terms of Sections
|
||||||
|
1 and 2 above on a medium customarily used for software interchange; or,
|
||||||
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|
||||||
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b) Accompany it with a written offer, valid for at least three
|
||||||
|
years, to give any third party, for a charge no more than your
|
||||||
|
cost of physically performing source distribution, a complete
|
||||||
|
machine-readable copy of the corresponding source code, to be
|
||||||
|
distributed under the terms of Sections 1 and 2 above on a medium
|
||||||
|
customarily used for software interchange; or,
|
||||||
|
|
||||||
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c) Accompany it with the information you received as to the offer
|
||||||
|
to distribute corresponding source code. (This alternative is
|
||||||
|
allowed only for noncommercial distribution and only if you
|
||||||
|
received the program in object code or executable form with such
|
||||||
|
an offer, in accord with Subsection b above.)
|
||||||
|
|
||||||
|
The source code for a work means the preferred form of the work for
|
||||||
|
making modifications to it. For an executable work, complete source
|
||||||
|
code means all the source code for all modules it contains, plus any
|
||||||
|
associated interface definition files, plus the scripts used to
|
||||||
|
control compilation and installation of the executable. However, as a
|
||||||
|
special exception, the source code distributed need not include
|
||||||
|
anything that is normally distributed (in either source or binary
|
||||||
|
form) with the major components (compiler, kernel, and so on) of the
|
||||||
|
operating system on which the executable runs, unless that component
|
||||||
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itself accompanies the executable.
|
||||||
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|
||||||
|
If distribution of executable or object code is made by offering
|
||||||
|
access to copy from a designated place, then offering equivalent
|
||||||
|
access to copy the source code from the same place counts as
|
||||||
|
distribution of the source code, even though third parties are not
|
||||||
|
compelled to copy the source along with the object code.
|
||||||
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|
||||||
|
4. You may not copy, modify, sublicense, or distribute the Program
|
||||||
|
except as expressly provided under this License. Any attempt
|
||||||
|
otherwise to copy, modify, sublicense or distribute the Program is
|
||||||
|
void, and will automatically terminate your rights under this License.
|
||||||
|
However, parties who have received copies, or rights, from you under
|
||||||
|
this License will not have their licenses terminated so long as such
|
||||||
|
parties remain in full compliance.
|
||||||
|
|
||||||
|
5. You are not required to accept this License, since you have not
|
||||||
|
signed it. However, nothing else grants you permission to modify or
|
||||||
|
distribute the Program or its derivative works. These actions are
|
||||||
|
prohibited by law if you do not accept this License. Therefore, by
|
||||||
|
modifying or distributing the Program (or any work based on the
|
||||||
|
Program), you indicate your acceptance of this License to do so, and
|
||||||
|
all its terms and conditions for copying, distributing or modifying
|
||||||
|
the Program or works based on it.
|
||||||
|
|
||||||
|
6. Each time you redistribute the Program (or any work based on the
|
||||||
|
Program), the recipient automatically receives a license from the
|
||||||
|
original licensor to copy, distribute or modify the Program subject to
|
||||||
|
these terms and conditions. You may not impose any further
|
||||||
|
restrictions on the recipients' exercise of the rights granted herein.
|
||||||
|
You are not responsible for enforcing compliance by third parties to
|
||||||
|
this License.
|
||||||
|
|
||||||
|
7. If, as a consequence of a court judgment or allegation of patent
|
||||||
|
infringement or for any other reason (not limited to patent issues),
|
||||||
|
conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot
|
||||||
|
distribute so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you
|
||||||
|
may not distribute the Program at all. For example, if a patent
|
||||||
|
license would not permit royalty-free redistribution of the Program by
|
||||||
|
all those who receive copies directly or indirectly through you, then
|
||||||
|
the only way you could satisfy both it and this License would be to
|
||||||
|
refrain entirely from distribution of the Program.
|
||||||
|
|
||||||
|
If any portion of this section is held invalid or unenforceable under
|
||||||
|
any particular circumstance, the balance of the section is intended to
|
||||||
|
apply and the section as a whole is intended to apply in other
|
||||||
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circumstances.
|
||||||
|
|
||||||
|
It is not the purpose of this section to induce you to infringe any
|
||||||
|
patents or other property right claims or to contest validity of any
|
||||||
|
such claims; this section has the sole purpose of protecting the
|
||||||
|
integrity of the free software distribution system, which is
|
||||||
|
implemented by public license practices. Many people have made
|
||||||
|
generous contributions to the wide range of software distributed
|
||||||
|
through that system in reliance on consistent application of that
|
||||||
|
system; it is up to the author/donor to decide if he or she is willing
|
||||||
|
to distribute software through any other system and a licensee cannot
|
||||||
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impose that choice.
|
||||||
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|
||||||
|
This section is intended to make thoroughly clear what is believed to
|
||||||
|
be a consequence of the rest of this License.
|
||||||
|
|
||||||
|
8. If the distribution and/or use of the Program is restricted in
|
||||||
|
certain countries either by patents or by copyrighted interfaces, the
|
||||||
|
original copyright holder who places the Program under this License
|
||||||
|
may add an explicit geographical distribution limitation excluding
|
||||||
|
those countries, so that distribution is permitted only in or among
|
||||||
|
countries not thus excluded. In such case, this License incorporates
|
||||||
|
the limitation as if written in the body of this License.
|
||||||
|
|
||||||
|
9. The Free Software Foundation may publish revised and/or new versions
|
||||||
|
of the General Public License from time to time. Such new versions will
|
||||||
|
be similar in spirit to the present version, but may differ in detail to
|
||||||
|
address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the Program
|
||||||
|
specifies a version number of this License which applies to it and "any
|
||||||
|
later version", you have the option of following the terms and conditions
|
||||||
|
either of that version or of any later version published by the Free
|
||||||
|
Software Foundation. If the Program does not specify a version number of
|
||||||
|
this License, you may choose any version ever published by the Free Software
|
||||||
|
Foundation.
|
||||||
|
|
||||||
|
10. If you wish to incorporate parts of the Program into other free
|
||||||
|
programs whose distribution conditions are different, write to the author
|
||||||
|
to ask for permission. For software which is copyrighted by the Free
|
||||||
|
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||||
|
make exceptions for this. Our decision will be guided by the two goals
|
||||||
|
of preserving the free status of all derivatives of our free software and
|
||||||
|
of promoting the sharing and reuse of software generally.
|
||||||
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|
||||||
|
NO WARRANTY
|
||||||
|
|
||||||
|
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
||||||
|
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
||||||
|
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
||||||
|
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||||
|
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||||
|
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||||
|
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||||
|
REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||||
|
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||||
|
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||||
|
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||||
|
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||||
|
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||||
|
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||||
|
POSSIBILITY OF SUCH DAMAGES.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
convey the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This program is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program is interactive, make it output a short notice like this
|
||||||
|
when it starts in an interactive mode:
|
||||||
|
|
||||||
|
Gnomovision version 69, Copyright (C) year name of author
|
||||||
|
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, the commands you use may
|
||||||
|
be called something other than `show w' and `show c'; they could even be
|
||||||
|
mouse-clicks or menu items--whatever suits your program.
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or your
|
||||||
|
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||||
|
necessary. Here is a sample; alter the names:
|
||||||
|
|
||||||
|
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||||
|
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||||
|
|
||||||
|
<signature of Ty Coon>, 1 April 1989
|
||||||
|
Ty Coon, President of Vice
|
||||||
|
|
||||||
|
This General Public License does not permit incorporating your program into
|
||||||
|
proprietary programs. If your program is a subroutine library, you may
|
||||||
|
consider it more useful to permit linking proprietary applications with the
|
||||||
|
library. If this is what you want to do, use the GNU Library General
|
||||||
|
Public License instead of this License.
|
||||||
9
Makefile.am
Normal file
9
Makefile.am
Normal file
|
|
@ -0,0 +1,9 @@
|
||||||
|
DEFS = -DTAYGA_CONF_PATH=\"$(tayga_conf_path)\"
|
||||||
|
|
||||||
|
sbin_PROGRAMS = tayga
|
||||||
|
|
||||||
|
dist_sysconf_DATA = tayga.conf.example
|
||||||
|
|
||||||
|
dist_man_MANS = tayga.8 tayga.conf.5
|
||||||
|
|
||||||
|
tayga_SOURCES = nat64.c addrmap.c dynamic.c tayga.c conffile.c tayga.h list.h
|
||||||
756
Makefile.in
Normal file
756
Makefile.in
Normal file
|
|
@ -0,0 +1,756 @@
|
||||||
|
# Makefile.in generated by automake 1.11.1 from Makefile.am.
|
||||||
|
# @configure_input@
|
||||||
|
|
||||||
|
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
|
||||||
|
# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
|
||||||
|
# Inc.
|
||||||
|
# This Makefile.in is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# This program is distributed in the hope that it will be useful,
|
||||||
|
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
||||||
|
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
||||||
|
# PARTICULAR PURPOSE.
|
||||||
|
|
||||||
|
@SET_MAKE@
|
||||||
|
|
||||||
|
|
||||||
|
VPATH = @srcdir@
|
||||||
|
pkgdatadir = $(datadir)/@PACKAGE@
|
||||||
|
pkgincludedir = $(includedir)/@PACKAGE@
|
||||||
|
pkglibdir = $(libdir)/@PACKAGE@
|
||||||
|
pkglibexecdir = $(libexecdir)/@PACKAGE@
|
||||||
|
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
|
||||||
|
install_sh_DATA = $(install_sh) -c -m 644
|
||||||
|
install_sh_PROGRAM = $(install_sh) -c
|
||||||
|
install_sh_SCRIPT = $(install_sh) -c
|
||||||
|
INSTALL_HEADER = $(INSTALL_DATA)
|
||||||
|
transform = $(program_transform_name)
|
||||||
|
NORMAL_INSTALL = :
|
||||||
|
PRE_INSTALL = :
|
||||||
|
POST_INSTALL = :
|
||||||
|
NORMAL_UNINSTALL = :
|
||||||
|
PRE_UNINSTALL = :
|
||||||
|
POST_UNINSTALL = :
|
||||||
|
sbin_PROGRAMS = tayga$(EXEEXT)
|
||||||
|
subdir = .
|
||||||
|
DIST_COMMON = README $(am__configure_deps) $(dist_man_MANS) \
|
||||||
|
$(dist_sysconf_DATA) $(srcdir)/Makefile.am \
|
||||||
|
$(srcdir)/Makefile.in $(srcdir)/config.h.in \
|
||||||
|
$(top_srcdir)/configure COPYING depcomp install-sh missing
|
||||||
|
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
|
||||||
|
am__aclocal_m4_deps = $(top_srcdir)/configure.ac
|
||||||
|
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
|
||||||
|
$(ACLOCAL_M4)
|
||||||
|
am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
|
||||||
|
configure.lineno config.status.lineno
|
||||||
|
mkinstalldirs = $(install_sh) -d
|
||||||
|
CONFIG_HEADER = config.h
|
||||||
|
CONFIG_CLEAN_FILES =
|
||||||
|
CONFIG_CLEAN_VPATH_FILES =
|
||||||
|
am__installdirs = "$(DESTDIR)$(sbindir)" "$(DESTDIR)$(man5dir)" \
|
||||||
|
"$(DESTDIR)$(man8dir)" "$(DESTDIR)$(sysconfdir)"
|
||||||
|
PROGRAMS = $(sbin_PROGRAMS)
|
||||||
|
am_tayga_OBJECTS = nat64.$(OBJEXT) addrmap.$(OBJEXT) dynamic.$(OBJEXT) \
|
||||||
|
tayga.$(OBJEXT) conffile.$(OBJEXT)
|
||||||
|
tayga_OBJECTS = $(am_tayga_OBJECTS)
|
||||||
|
tayga_LDADD = $(LDADD)
|
||||||
|
DEFAULT_INCLUDES = -I.@am__isrc@
|
||||||
|
depcomp = $(SHELL) $(top_srcdir)/depcomp
|
||||||
|
am__depfiles_maybe = depfiles
|
||||||
|
am__mv = mv -f
|
||||||
|
COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
|
||||||
|
$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
|
||||||
|
CCLD = $(CC)
|
||||||
|
LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
|
||||||
|
SOURCES = $(tayga_SOURCES)
|
||||||
|
DIST_SOURCES = $(tayga_SOURCES)
|
||||||
|
am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
|
||||||
|
am__vpath_adj = case $$p in \
|
||||||
|
$(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
|
||||||
|
*) f=$$p;; \
|
||||||
|
esac;
|
||||||
|
am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
|
||||||
|
am__install_max = 40
|
||||||
|
am__nobase_strip_setup = \
|
||||||
|
srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
|
||||||
|
am__nobase_strip = \
|
||||||
|
for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
|
||||||
|
am__nobase_list = $(am__nobase_strip_setup); \
|
||||||
|
for p in $$list; do echo "$$p $$p"; done | \
|
||||||
|
sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
|
||||||
|
$(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
|
||||||
|
if (++n[$$2] == $(am__install_max)) \
|
||||||
|
{ print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
|
||||||
|
END { for (dir in files) print dir, files[dir] }'
|
||||||
|
am__base_list = \
|
||||||
|
sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
|
||||||
|
sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
|
||||||
|
man5dir = $(mandir)/man5
|
||||||
|
man8dir = $(mandir)/man8
|
||||||
|
NROFF = nroff
|
||||||
|
MANS = $(dist_man_MANS)
|
||||||
|
DATA = $(dist_sysconf_DATA)
|
||||||
|
ETAGS = etags
|
||||||
|
CTAGS = ctags
|
||||||
|
DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
|
||||||
|
distdir = $(PACKAGE)-$(VERSION)
|
||||||
|
top_distdir = $(distdir)
|
||||||
|
am__remove_distdir = \
|
||||||
|
{ test ! -d "$(distdir)" \
|
||||||
|
|| { find "$(distdir)" -type d ! -perm -200 -exec chmod u+w {} ';' \
|
||||||
|
&& rm -fr "$(distdir)"; }; }
|
||||||
|
DIST_ARCHIVES = $(distdir).tar.gz $(distdir).tar.bz2
|
||||||
|
GZIP_ENV = --best
|
||||||
|
distuninstallcheck_listfiles = find . -type f -print
|
||||||
|
distcleancheck_listfiles = find . -type f -print
|
||||||
|
ACLOCAL = @ACLOCAL@
|
||||||
|
AMTAR = @AMTAR@
|
||||||
|
AUTOCONF = @AUTOCONF@
|
||||||
|
AUTOHEADER = @AUTOHEADER@
|
||||||
|
AUTOMAKE = @AUTOMAKE@
|
||||||
|
AWK = @AWK@
|
||||||
|
CC = @CC@
|
||||||
|
CCDEPMODE = @CCDEPMODE@
|
||||||
|
CFLAGS = @CFLAGS@
|
||||||
|
CPPFLAGS = @CPPFLAGS@
|
||||||
|
CYGPATH_W = @CYGPATH_W@
|
||||||
|
DEFS = -DTAYGA_CONF_PATH=\"$(tayga_conf_path)\"
|
||||||
|
DEPDIR = @DEPDIR@
|
||||||
|
ECHO_C = @ECHO_C@
|
||||||
|
ECHO_N = @ECHO_N@
|
||||||
|
ECHO_T = @ECHO_T@
|
||||||
|
EXEEXT = @EXEEXT@
|
||||||
|
INSTALL = @INSTALL@
|
||||||
|
INSTALL_DATA = @INSTALL_DATA@
|
||||||
|
INSTALL_PROGRAM = @INSTALL_PROGRAM@
|
||||||
|
INSTALL_SCRIPT = @INSTALL_SCRIPT@
|
||||||
|
INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
|
||||||
|
LDFLAGS = @LDFLAGS@
|
||||||
|
LIBOBJS = @LIBOBJS@
|
||||||
|
LIBS = @LIBS@
|
||||||
|
LTLIBOBJS = @LTLIBOBJS@
|
||||||
|
MAKEINFO = @MAKEINFO@
|
||||||
|
MKDIR_P = @MKDIR_P@
|
||||||
|
OBJEXT = @OBJEXT@
|
||||||
|
PACKAGE = @PACKAGE@
|
||||||
|
PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
|
||||||
|
PACKAGE_NAME = @PACKAGE_NAME@
|
||||||
|
PACKAGE_STRING = @PACKAGE_STRING@
|
||||||
|
PACKAGE_TARNAME = @PACKAGE_TARNAME@
|
||||||
|
PACKAGE_URL = @PACKAGE_URL@
|
||||||
|
PACKAGE_VERSION = @PACKAGE_VERSION@
|
||||||
|
PATH_SEPARATOR = @PATH_SEPARATOR@
|
||||||
|
SET_MAKE = @SET_MAKE@
|
||||||
|
SHELL = @SHELL@
|
||||||
|
STRIP = @STRIP@
|
||||||
|
VERSION = @VERSION@
|
||||||
|
abs_builddir = @abs_builddir@
|
||||||
|
abs_srcdir = @abs_srcdir@
|
||||||
|
abs_top_builddir = @abs_top_builddir@
|
||||||
|
abs_top_srcdir = @abs_top_srcdir@
|
||||||
|
ac_ct_CC = @ac_ct_CC@
|
||||||
|
am__include = @am__include@
|
||||||
|
am__leading_dot = @am__leading_dot@
|
||||||
|
am__quote = @am__quote@
|
||||||
|
am__tar = @am__tar@
|
||||||
|
am__untar = @am__untar@
|
||||||
|
bindir = @bindir@
|
||||||
|
build_alias = @build_alias@
|
||||||
|
builddir = @builddir@
|
||||||
|
datadir = @datadir@
|
||||||
|
datarootdir = @datarootdir@
|
||||||
|
docdir = @docdir@
|
||||||
|
dvidir = @dvidir@
|
||||||
|
exec_prefix = @exec_prefix@
|
||||||
|
host_alias = @host_alias@
|
||||||
|
htmldir = @htmldir@
|
||||||
|
includedir = @includedir@
|
||||||
|
infodir = @infodir@
|
||||||
|
install_sh = @install_sh@
|
||||||
|
libdir = @libdir@
|
||||||
|
libexecdir = @libexecdir@
|
||||||
|
localedir = @localedir@
|
||||||
|
localstatedir = @localstatedir@
|
||||||
|
mandir = @mandir@
|
||||||
|
mkdir_p = @mkdir_p@
|
||||||
|
oldincludedir = @oldincludedir@
|
||||||
|
pdfdir = @pdfdir@
|
||||||
|
prefix = @prefix@
|
||||||
|
program_transform_name = @program_transform_name@
|
||||||
|
psdir = @psdir@
|
||||||
|
sbindir = @sbindir@
|
||||||
|
sharedstatedir = @sharedstatedir@
|
||||||
|
srcdir = @srcdir@
|
||||||
|
sysconfdir = @sysconfdir@
|
||||||
|
target_alias = @target_alias@
|
||||||
|
tayga_conf_path = @tayga_conf_path@
|
||||||
|
top_build_prefix = @top_build_prefix@
|
||||||
|
top_builddir = @top_builddir@
|
||||||
|
top_srcdir = @top_srcdir@
|
||||||
|
dist_sysconf_DATA = tayga.conf.example
|
||||||
|
dist_man_MANS = tayga.8 tayga.conf.5
|
||||||
|
tayga_SOURCES = nat64.c addrmap.c dynamic.c tayga.c conffile.c tayga.h list.h
|
||||||
|
all: config.h
|
||||||
|
$(MAKE) $(AM_MAKEFLAGS) all-am
|
||||||
|
|
||||||
|
.SUFFIXES:
|
||||||
|
.SUFFIXES: .c .o .obj
|
||||||
|
am--refresh:
|
||||||
|
@:
|
||||||
|
$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(am__configure_deps)
|
||||||
|
@for dep in $?; do \
|
||||||
|
case '$(am__configure_deps)' in \
|
||||||
|
*$$dep*) \
|
||||||
|
echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \
|
||||||
|
$(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \
|
||||||
|
&& exit 0; \
|
||||||
|
exit 1;; \
|
||||||
|
esac; \
|
||||||
|
done; \
|
||||||
|
echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \
|
||||||
|
$(am__cd) $(top_srcdir) && \
|
||||||
|
$(AUTOMAKE) --foreign Makefile
|
||||||
|
.PRECIOUS: Makefile
|
||||||
|
Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
|
||||||
|
@case '$?' in \
|
||||||
|
*config.status*) \
|
||||||
|
echo ' $(SHELL) ./config.status'; \
|
||||||
|
$(SHELL) ./config.status;; \
|
||||||
|
*) \
|
||||||
|
echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
|
||||||
|
cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
|
||||||
|
esac;
|
||||||
|
|
||||||
|
$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
|
||||||
|
$(SHELL) ./config.status --recheck
|
||||||
|
|
||||||
|
$(top_srcdir)/configure: $(am__configure_deps)
|
||||||
|
$(am__cd) $(srcdir) && $(AUTOCONF)
|
||||||
|
$(ACLOCAL_M4): $(am__aclocal_m4_deps)
|
||||||
|
$(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
|
||||||
|
$(am__aclocal_m4_deps):
|
||||||
|
|
||||||
|
config.h: stamp-h1
|
||||||
|
@if test ! -f $@; then \
|
||||||
|
rm -f stamp-h1; \
|
||||||
|
$(MAKE) $(AM_MAKEFLAGS) stamp-h1; \
|
||||||
|
else :; fi
|
||||||
|
|
||||||
|
stamp-h1: $(srcdir)/config.h.in $(top_builddir)/config.status
|
||||||
|
@rm -f stamp-h1
|
||||||
|
cd $(top_builddir) && $(SHELL) ./config.status config.h
|
||||||
|
$(srcdir)/config.h.in: $(am__configure_deps)
|
||||||
|
($(am__cd) $(top_srcdir) && $(AUTOHEADER))
|
||||||
|
rm -f stamp-h1
|
||||||
|
touch $@
|
||||||
|
|
||||||
|
distclean-hdr:
|
||||||
|
-rm -f config.h stamp-h1
|
||||||
|
install-sbinPROGRAMS: $(sbin_PROGRAMS)
|
||||||
|
@$(NORMAL_INSTALL)
|
||||||
|
test -z "$(sbindir)" || $(MKDIR_P) "$(DESTDIR)$(sbindir)"
|
||||||
|
@list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
|
||||||
|
for p in $$list; do echo "$$p $$p"; done | \
|
||||||
|
sed 's/$(EXEEXT)$$//' | \
|
||||||
|
while read p p1; do if test -f $$p; \
|
||||||
|
then echo "$$p"; echo "$$p"; else :; fi; \
|
||||||
|
done | \
|
||||||
|
sed -e 'p;s,.*/,,;n;h' -e 's|.*|.|' \
|
||||||
|
-e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
|
||||||
|
sed 'N;N;N;s,\n, ,g' | \
|
||||||
|
$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
|
||||||
|
{ d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
|
||||||
|
if ($$2 == $$4) files[d] = files[d] " " $$1; \
|
||||||
|
else { print "f", $$3 "/" $$4, $$1; } } \
|
||||||
|
END { for (d in files) print "f", d, files[d] }' | \
|
||||||
|
while read type dir files; do \
|
||||||
|
if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
|
||||||
|
test -z "$$files" || { \
|
||||||
|
echo " $(INSTALL_PROGRAM_ENV) $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(sbindir)$$dir'"; \
|
||||||
|
$(INSTALL_PROGRAM_ENV) $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(sbindir)$$dir" || exit $$?; \
|
||||||
|
} \
|
||||||
|
; done
|
||||||
|
|
||||||
|
uninstall-sbinPROGRAMS:
|
||||||
|
@$(NORMAL_UNINSTALL)
|
||||||
|
@list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
|
||||||
|
files=`for p in $$list; do echo "$$p"; done | \
|
||||||
|
sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
|
||||||
|
-e 's/$$/$(EXEEXT)/' `; \
|
||||||
|
test -n "$$list" || exit 0; \
|
||||||
|
echo " ( cd '$(DESTDIR)$(sbindir)' && rm -f" $$files ")"; \
|
||||||
|
cd "$(DESTDIR)$(sbindir)" && rm -f $$files
|
||||||
|
|
||||||
|
clean-sbinPROGRAMS:
|
||||||
|
-test -z "$(sbin_PROGRAMS)" || rm -f $(sbin_PROGRAMS)
|
||||||
|
tayga$(EXEEXT): $(tayga_OBJECTS) $(tayga_DEPENDENCIES)
|
||||||
|
@rm -f tayga$(EXEEXT)
|
||||||
|
$(LINK) $(tayga_OBJECTS) $(tayga_LDADD) $(LIBS)
|
||||||
|
|
||||||
|
mostlyclean-compile:
|
||||||
|
-rm -f *.$(OBJEXT)
|
||||||
|
|
||||||
|
distclean-compile:
|
||||||
|
-rm -f *.tab.c
|
||||||
|
|
||||||
|
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/addrmap.Po@am__quote@
|
||||||
|
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conffile.Po@am__quote@
|
||||||
|
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dynamic.Po@am__quote@
|
||||||
|
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nat64.Po@am__quote@
|
||||||
|
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tayga.Po@am__quote@
|
||||||
|
|
||||||
|
.c.o:
|
||||||
|
@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
|
||||||
|
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
|
||||||
|
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
|
||||||
|
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
|
||||||
|
@am__fastdepCC_FALSE@ $(COMPILE) -c $<
|
||||||
|
|
||||||
|
.c.obj:
|
||||||
|
@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ `$(CYGPATH_W) '$<'`
|
||||||
|
@am__fastdepCC_TRUE@ $(am__mv) $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
|
||||||
|
@AMDEP_TRUE@@am__fastdepCC_FALSE@ source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
|
||||||
|
@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
|
||||||
|
@am__fastdepCC_FALSE@ $(COMPILE) -c `$(CYGPATH_W) '$<'`
|
||||||
|
install-man5: $(dist_man_MANS)
|
||||||
|
@$(NORMAL_INSTALL)
|
||||||
|
test -z "$(man5dir)" || $(MKDIR_P) "$(DESTDIR)$(man5dir)"
|
||||||
|
@list=''; test -n "$(man5dir)" || exit 0; \
|
||||||
|
{ for i in $$list; do echo "$$i"; done; \
|
||||||
|
l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
|
||||||
|
sed -n '/\.5[a-z]*$$/p'; \
|
||||||
|
} | while read p; do \
|
||||||
|
if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
|
||||||
|
echo "$$d$$p"; echo "$$p"; \
|
||||||
|
done | \
|
||||||
|
sed -e 'n;s,.*/,,;p;h;s,.*\.,,;s,^[^5][0-9a-z]*$$,5,;x' \
|
||||||
|
-e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,' | \
|
||||||
|
sed 'N;N;s,\n, ,g' | { \
|
||||||
|
list=; while read file base inst; do \
|
||||||
|
if test "$$base" = "$$inst"; then list="$$list $$file"; else \
|
||||||
|
echo " $(INSTALL_DATA) '$$file' '$(DESTDIR)$(man5dir)/$$inst'"; \
|
||||||
|
$(INSTALL_DATA) "$$file" "$(DESTDIR)$(man5dir)/$$inst" || exit $$?; \
|
||||||
|
fi; \
|
||||||
|
done; \
|
||||||
|
for i in $$list; do echo "$$i"; done | $(am__base_list) | \
|
||||||
|
while read files; do \
|
||||||
|
test -z "$$files" || { \
|
||||||
|
echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(man5dir)'"; \
|
||||||
|
$(INSTALL_DATA) $$files "$(DESTDIR)$(man5dir)" || exit $$?; }; \
|
||||||
|
done; }
|
||||||
|
|
||||||
|
uninstall-man5:
|
||||||
|
@$(NORMAL_UNINSTALL)
|
||||||
|
@list=''; test -n "$(man5dir)" || exit 0; \
|
||||||
|
files=`{ for i in $$list; do echo "$$i"; done; \
|
||||||
|
l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
|
||||||
|
sed -n '/\.5[a-z]*$$/p'; \
|
||||||
|
} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^5][0-9a-z]*$$,5,;x' \
|
||||||
|
-e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
|
||||||
|
test -z "$$files" || { \
|
||||||
|
echo " ( cd '$(DESTDIR)$(man5dir)' && rm -f" $$files ")"; \
|
||||||
|
cd "$(DESTDIR)$(man5dir)" && rm -f $$files; }
|
||||||
|
install-man8: $(dist_man_MANS)
|
||||||
|
@$(NORMAL_INSTALL)
|
||||||
|
test -z "$(man8dir)" || $(MKDIR_P) "$(DESTDIR)$(man8dir)"
|
||||||
|
@list=''; test -n "$(man8dir)" || exit 0; \
|
||||||
|
{ for i in $$list; do echo "$$i"; done; \
|
||||||
|
l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
|
||||||
|
sed -n '/\.8[a-z]*$$/p'; \
|
||||||
|
} | while read p; do \
|
||||||
|
if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
|
||||||
|
echo "$$d$$p"; echo "$$p"; \
|
||||||
|
done | \
|
||||||
|
sed -e 'n;s,.*/,,;p;h;s,.*\.,,;s,^[^8][0-9a-z]*$$,8,;x' \
|
||||||
|
-e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,' | \
|
||||||
|
sed 'N;N;s,\n, ,g' | { \
|
||||||
|
list=; while read file base inst; do \
|
||||||
|
if test "$$base" = "$$inst"; then list="$$list $$file"; else \
|
||||||
|
echo " $(INSTALL_DATA) '$$file' '$(DESTDIR)$(man8dir)/$$inst'"; \
|
||||||
|
$(INSTALL_DATA) "$$file" "$(DESTDIR)$(man8dir)/$$inst" || exit $$?; \
|
||||||
|
fi; \
|
||||||
|
done; \
|
||||||
|
for i in $$list; do echo "$$i"; done | $(am__base_list) | \
|
||||||
|
while read files; do \
|
||||||
|
test -z "$$files" || { \
|
||||||
|
echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(man8dir)'"; \
|
||||||
|
$(INSTALL_DATA) $$files "$(DESTDIR)$(man8dir)" || exit $$?; }; \
|
||||||
|
done; }
|
||||||
|
|
||||||
|
uninstall-man8:
|
||||||
|
@$(NORMAL_UNINSTALL)
|
||||||
|
@list=''; test -n "$(man8dir)" || exit 0; \
|
||||||
|
files=`{ for i in $$list; do echo "$$i"; done; \
|
||||||
|
l2='$(dist_man_MANS)'; for i in $$l2; do echo "$$i"; done | \
|
||||||
|
sed -n '/\.8[a-z]*$$/p'; \
|
||||||
|
} | sed -e 's,.*/,,;h;s,.*\.,,;s,^[^8][0-9a-z]*$$,8,;x' \
|
||||||
|
-e 's,\.[0-9a-z]*$$,,;$(transform);G;s,\n,.,'`; \
|
||||||
|
test -z "$$files" || { \
|
||||||
|
echo " ( cd '$(DESTDIR)$(man8dir)' && rm -f" $$files ")"; \
|
||||||
|
cd "$(DESTDIR)$(man8dir)" && rm -f $$files; }
|
||||||
|
install-dist_sysconfDATA: $(dist_sysconf_DATA)
|
||||||
|
@$(NORMAL_INSTALL)
|
||||||
|
test -z "$(sysconfdir)" || $(MKDIR_P) "$(DESTDIR)$(sysconfdir)"
|
||||||
|
@list='$(dist_sysconf_DATA)'; test -n "$(sysconfdir)" || list=; \
|
||||||
|
for p in $$list; do \
|
||||||
|
if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
|
||||||
|
echo "$$d$$p"; \
|
||||||
|
done | $(am__base_list) | \
|
||||||
|
while read files; do \
|
||||||
|
echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(sysconfdir)'"; \
|
||||||
|
$(INSTALL_DATA) $$files "$(DESTDIR)$(sysconfdir)" || exit $$?; \
|
||||||
|
done
|
||||||
|
|
||||||
|
uninstall-dist_sysconfDATA:
|
||||||
|
@$(NORMAL_UNINSTALL)
|
||||||
|
@list='$(dist_sysconf_DATA)'; test -n "$(sysconfdir)" || list=; \
|
||||||
|
files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
|
||||||
|
test -n "$$files" || exit 0; \
|
||||||
|
echo " ( cd '$(DESTDIR)$(sysconfdir)' && rm -f" $$files ")"; \
|
||||||
|
cd "$(DESTDIR)$(sysconfdir)" && rm -f $$files
|
||||||
|
|
||||||
|
ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
|
||||||
|
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||||
|
unique=`for i in $$list; do \
|
||||||
|
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||||
|
done | \
|
||||||
|
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||||
|
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||||
|
mkid -fID $$unique
|
||||||
|
tags: TAGS
|
||||||
|
|
||||||
|
TAGS: $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
|
||||||
|
$(TAGS_FILES) $(LISP)
|
||||||
|
set x; \
|
||||||
|
here=`pwd`; \
|
||||||
|
list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
|
||||||
|
unique=`for i in $$list; do \
|
||||||
|
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||||
|
done | \
|
||||||
|
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||||
|
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||||
|
shift; \
|
||||||
|
if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
|
||||||
|
test -n "$$unique" || unique=$$empty_fix; \
|
||||||
|
if test $$# -gt 0; then \
|
||||||
|
$(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
|
||||||
|
"$$@" $$unique; \
|
||||||
|
else \
|
||||||
|
$(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
|
||||||
|
$$unique; \
|
||||||
|
fi; \
|
||||||
|
fi
|
||||||
|
ctags: CTAGS
|
||||||
|
CTAGS: $(HEADERS) $(SOURCES) config.h.in $(TAGS_DEPENDENCIES) \
|
||||||
|
$(TAGS_FILES) $(LISP)
|
||||||
|
list='$(SOURCES) $(HEADERS) config.h.in $(LISP) $(TAGS_FILES)'; \
|
||||||
|
unique=`for i in $$list; do \
|
||||||
|
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||||
|
done | \
|
||||||
|
$(AWK) '{ files[$$0] = 1; nonempty = 1; } \
|
||||||
|
END { if (nonempty) { for (i in files) print i; }; }'`; \
|
||||||
|
test -z "$(CTAGS_ARGS)$$unique" \
|
||||||
|
|| $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
|
||||||
|
$$unique
|
||||||
|
|
||||||
|
GTAGS:
|
||||||
|
here=`$(am__cd) $(top_builddir) && pwd` \
|
||||||
|
&& $(am__cd) $(top_srcdir) \
|
||||||
|
&& gtags -i $(GTAGS_ARGS) "$$here"
|
||||||
|
|
||||||
|
distclean-tags:
|
||||||
|
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
|
||||||
|
|
||||||
|
distdir: $(DISTFILES)
|
||||||
|
@list='$(MANS)'; if test -n "$$list"; then \
|
||||||
|
list=`for p in $$list; do \
|
||||||
|
if test -f $$p; then d=; else d="$(srcdir)/"; fi; \
|
||||||
|
if test -f "$$d$$p"; then echo "$$d$$p"; else :; fi; done`; \
|
||||||
|
if test -n "$$list" && \
|
||||||
|
grep 'ab help2man is required to generate this page' $$list >/dev/null; then \
|
||||||
|
echo "error: found man pages containing the \`missing help2man' replacement text:" >&2; \
|
||||||
|
grep -l 'ab help2man is required to generate this page' $$list | sed 's/^/ /' >&2; \
|
||||||
|
echo " to fix them, install help2man, remove and regenerate the man pages;" >&2; \
|
||||||
|
echo " typically \`make maintainer-clean' will remove them" >&2; \
|
||||||
|
exit 1; \
|
||||||
|
else :; fi; \
|
||||||
|
else :; fi
|
||||||
|
$(am__remove_distdir)
|
||||||
|
test -d "$(distdir)" || mkdir "$(distdir)"
|
||||||
|
@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
|
||||||
|
topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
|
||||||
|
list='$(DISTFILES)'; \
|
||||||
|
dist_files=`for file in $$list; do echo $$file; done | \
|
||||||
|
sed -e "s|^$$srcdirstrip/||;t" \
|
||||||
|
-e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
|
||||||
|
case $$dist_files in \
|
||||||
|
*/*) $(MKDIR_P) `echo "$$dist_files" | \
|
||||||
|
sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
|
||||||
|
sort -u` ;; \
|
||||||
|
esac; \
|
||||||
|
for file in $$dist_files; do \
|
||||||
|
if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
|
||||||
|
if test -d $$d/$$file; then \
|
||||||
|
dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
|
||||||
|
if test -d "$(distdir)/$$file"; then \
|
||||||
|
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
|
||||||
|
fi; \
|
||||||
|
if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
|
||||||
|
cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
|
||||||
|
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
|
||||||
|
fi; \
|
||||||
|
cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
|
||||||
|
else \
|
||||||
|
test -f "$(distdir)/$$file" \
|
||||||
|
|| cp -p $$d/$$file "$(distdir)/$$file" \
|
||||||
|
|| exit 1; \
|
||||||
|
fi; \
|
||||||
|
done
|
||||||
|
-test -n "$(am__skip_mode_fix)" \
|
||||||
|
|| find "$(distdir)" -type d ! -perm -755 \
|
||||||
|
-exec chmod u+rwx,go+rx {} \; -o \
|
||||||
|
! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
|
||||||
|
! -type d ! -perm -400 -exec chmod a+r {} \; -o \
|
||||||
|
! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
|
||||||
|
|| chmod -R a+r "$(distdir)"
|
||||||
|
dist-gzip: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
|
||||||
|
$(am__remove_distdir)
|
||||||
|
dist-bzip2: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist-lzma: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | lzma -9 -c >$(distdir).tar.lzma
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist-xz: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | xz -c >$(distdir).tar.xz
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist-tarZ: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist-shar: distdir
|
||||||
|
shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist-zip: distdir
|
||||||
|
-rm -f $(distdir).zip
|
||||||
|
zip -rq $(distdir).zip $(distdir)
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
dist dist-all: distdir
|
||||||
|
tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
|
||||||
|
tardir=$(distdir) && $(am__tar) | bzip2 -9 -c >$(distdir).tar.bz2
|
||||||
|
$(am__remove_distdir)
|
||||||
|
|
||||||
|
# This target untars the dist file and tries a VPATH configuration. Then
|
||||||
|
# it guarantees that the distribution is self-contained by making another
|
||||||
|
# tarfile.
|
||||||
|
distcheck: dist
|
||||||
|
case '$(DIST_ARCHIVES)' in \
|
||||||
|
*.tar.gz*) \
|
||||||
|
GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
|
||||||
|
*.tar.bz2*) \
|
||||||
|
bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
|
||||||
|
*.tar.lzma*) \
|
||||||
|
lzma -dc $(distdir).tar.lzma | $(am__untar) ;;\
|
||||||
|
*.tar.xz*) \
|
||||||
|
xz -dc $(distdir).tar.xz | $(am__untar) ;;\
|
||||||
|
*.tar.Z*) \
|
||||||
|
uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
|
||||||
|
*.shar.gz*) \
|
||||||
|
GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
|
||||||
|
*.zip*) \
|
||||||
|
unzip $(distdir).zip ;;\
|
||||||
|
esac
|
||||||
|
chmod -R a-w $(distdir); chmod a+w $(distdir)
|
||||||
|
mkdir $(distdir)/_build
|
||||||
|
mkdir $(distdir)/_inst
|
||||||
|
chmod a-w $(distdir)
|
||||||
|
test -d $(distdir)/_build || exit 0; \
|
||||||
|
dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
|
||||||
|
&& dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
|
||||||
|
&& am__cwd=`pwd` \
|
||||||
|
&& $(am__cd) $(distdir)/_build \
|
||||||
|
&& ../configure --srcdir=.. --prefix="$$dc_install_base" \
|
||||||
|
$(DISTCHECK_CONFIGURE_FLAGS) \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) dvi \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) check \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) install \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) installcheck \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) uninstall \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
|
||||||
|
distuninstallcheck \
|
||||||
|
&& chmod -R a-w "$$dc_install_base" \
|
||||||
|
&& ({ \
|
||||||
|
(cd ../.. && umask 077 && mkdir "$$dc_destdir") \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
|
||||||
|
distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
|
||||||
|
} || { rm -rf "$$dc_destdir"; exit 1; }) \
|
||||||
|
&& rm -rf "$$dc_destdir" \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) dist \
|
||||||
|
&& rm -rf $(DIST_ARCHIVES) \
|
||||||
|
&& $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
|
||||||
|
&& cd "$$am__cwd" \
|
||||||
|
|| exit 1
|
||||||
|
$(am__remove_distdir)
|
||||||
|
@(echo "$(distdir) archives ready for distribution: "; \
|
||||||
|
list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
|
||||||
|
sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
|
||||||
|
distuninstallcheck:
|
||||||
|
@$(am__cd) '$(distuninstallcheck_dir)' \
|
||||||
|
&& test `$(distuninstallcheck_listfiles) | wc -l` -le 1 \
|
||||||
|
|| { echo "ERROR: files left after uninstall:" ; \
|
||||||
|
if test -n "$(DESTDIR)"; then \
|
||||||
|
echo " (check DESTDIR support)"; \
|
||||||
|
fi ; \
|
||||||
|
$(distuninstallcheck_listfiles) ; \
|
||||||
|
exit 1; } >&2
|
||||||
|
distcleancheck: distclean
|
||||||
|
@if test '$(srcdir)' = . ; then \
|
||||||
|
echo "ERROR: distcleancheck can only run from a VPATH build" ; \
|
||||||
|
exit 1 ; \
|
||||||
|
fi
|
||||||
|
@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
|
||||||
|
|| { echo "ERROR: files left in build directory after distclean:" ; \
|
||||||
|
$(distcleancheck_listfiles) ; \
|
||||||
|
exit 1; } >&2
|
||||||
|
check-am: all-am
|
||||||
|
check: check-am
|
||||||
|
all-am: Makefile $(PROGRAMS) $(MANS) $(DATA) config.h
|
||||||
|
installdirs:
|
||||||
|
for dir in "$(DESTDIR)$(sbindir)" "$(DESTDIR)$(man5dir)" "$(DESTDIR)$(man8dir)" "$(DESTDIR)$(sysconfdir)"; do \
|
||||||
|
test -z "$$dir" || $(MKDIR_P) "$$dir"; \
|
||||||
|
done
|
||||||
|
install: install-am
|
||||||
|
install-exec: install-exec-am
|
||||||
|
install-data: install-data-am
|
||||||
|
uninstall: uninstall-am
|
||||||
|
|
||||||
|
install-am: all-am
|
||||||
|
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
|
||||||
|
|
||||||
|
installcheck: installcheck-am
|
||||||
|
install-strip:
|
||||||
|
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
|
||||||
|
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
|
||||||
|
`test -z '$(STRIP)' || \
|
||||||
|
echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
|
||||||
|
mostlyclean-generic:
|
||||||
|
|
||||||
|
clean-generic:
|
||||||
|
|
||||||
|
distclean-generic:
|
||||||
|
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
|
||||||
|
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
|
||||||
|
|
||||||
|
maintainer-clean-generic:
|
||||||
|
@echo "This command is intended for maintainers to use"
|
||||||
|
@echo "it deletes files that may require special tools to rebuild."
|
||||||
|
clean: clean-am
|
||||||
|
|
||||||
|
clean-am: clean-generic clean-sbinPROGRAMS mostlyclean-am
|
||||||
|
|
||||||
|
distclean: distclean-am
|
||||||
|
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
|
||||||
|
-rm -rf ./$(DEPDIR)
|
||||||
|
-rm -f Makefile
|
||||||
|
distclean-am: clean-am distclean-compile distclean-generic \
|
||||||
|
distclean-hdr distclean-tags
|
||||||
|
|
||||||
|
dvi: dvi-am
|
||||||
|
|
||||||
|
dvi-am:
|
||||||
|
|
||||||
|
html: html-am
|
||||||
|
|
||||||
|
html-am:
|
||||||
|
|
||||||
|
info: info-am
|
||||||
|
|
||||||
|
info-am:
|
||||||
|
|
||||||
|
install-data-am: install-man
|
||||||
|
|
||||||
|
install-dvi: install-dvi-am
|
||||||
|
|
||||||
|
install-dvi-am:
|
||||||
|
|
||||||
|
install-exec-am: install-dist_sysconfDATA install-sbinPROGRAMS
|
||||||
|
|
||||||
|
install-html: install-html-am
|
||||||
|
|
||||||
|
install-html-am:
|
||||||
|
|
||||||
|
install-info: install-info-am
|
||||||
|
|
||||||
|
install-info-am:
|
||||||
|
|
||||||
|
install-man: install-man5 install-man8
|
||||||
|
|
||||||
|
install-pdf: install-pdf-am
|
||||||
|
|
||||||
|
install-pdf-am:
|
||||||
|
|
||||||
|
install-ps: install-ps-am
|
||||||
|
|
||||||
|
install-ps-am:
|
||||||
|
|
||||||
|
installcheck-am:
|
||||||
|
|
||||||
|
maintainer-clean: maintainer-clean-am
|
||||||
|
-rm -f $(am__CONFIG_DISTCLEAN_FILES)
|
||||||
|
-rm -rf $(top_srcdir)/autom4te.cache
|
||||||
|
-rm -rf ./$(DEPDIR)
|
||||||
|
-rm -f Makefile
|
||||||
|
maintainer-clean-am: distclean-am maintainer-clean-generic
|
||||||
|
|
||||||
|
mostlyclean: mostlyclean-am
|
||||||
|
|
||||||
|
mostlyclean-am: mostlyclean-compile mostlyclean-generic
|
||||||
|
|
||||||
|
pdf: pdf-am
|
||||||
|
|
||||||
|
pdf-am:
|
||||||
|
|
||||||
|
ps: ps-am
|
||||||
|
|
||||||
|
ps-am:
|
||||||
|
|
||||||
|
uninstall-am: uninstall-dist_sysconfDATA uninstall-man \
|
||||||
|
uninstall-sbinPROGRAMS
|
||||||
|
|
||||||
|
uninstall-man: uninstall-man5 uninstall-man8
|
||||||
|
|
||||||
|
.MAKE: all install-am install-strip
|
||||||
|
|
||||||
|
.PHONY: CTAGS GTAGS all all-am am--refresh check check-am clean \
|
||||||
|
clean-generic clean-sbinPROGRAMS ctags dist dist-all \
|
||||||
|
dist-bzip2 dist-gzip dist-lzma dist-shar dist-tarZ dist-xz \
|
||||||
|
dist-zip distcheck distclean distclean-compile \
|
||||||
|
distclean-generic distclean-hdr distclean-tags distcleancheck \
|
||||||
|
distdir distuninstallcheck dvi dvi-am html html-am info \
|
||||||
|
info-am install install-am install-data install-data-am \
|
||||||
|
install-dist_sysconfDATA install-dvi install-dvi-am \
|
||||||
|
install-exec install-exec-am install-html install-html-am \
|
||||||
|
install-info install-info-am install-man install-man5 \
|
||||||
|
install-man8 install-pdf install-pdf-am install-ps \
|
||||||
|
install-ps-am install-sbinPROGRAMS install-strip installcheck \
|
||||||
|
installcheck-am installdirs maintainer-clean \
|
||||||
|
maintainer-clean-generic mostlyclean mostlyclean-compile \
|
||||||
|
mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \
|
||||||
|
uninstall-am uninstall-dist_sysconfDATA uninstall-man \
|
||||||
|
uninstall-man5 uninstall-man8 uninstall-sbinPROGRAMS
|
||||||
|
|
||||||
|
|
||||||
|
# Tell versions [3.59,3.63) of GNU make to not export all variables.
|
||||||
|
# Otherwise a system limit (for SysV at least) may be exceeded.
|
||||||
|
.NOEXPORT:
|
||||||
169
README
Normal file
169
README
Normal file
|
|
@ -0,0 +1,169 @@
|
||||||
|
******************************************************************************
|
||||||
|
README for TAYGA v0.9.2
|
||||||
|
******************************************************************************
|
||||||
|
|
||||||
|
Last updated 2010-12-12
|
||||||
|
|
||||||
|
--------
|
||||||
|
Overview
|
||||||
|
--------
|
||||||
|
|
||||||
|
TAYGA is an out-of-kernel stateless NAT64 implementation for Linux. It uses
|
||||||
|
the TUN driver to exchange packets with the kernel, which is the same driver
|
||||||
|
used by OpenVPN and QEMU/KVM. TAYGA needs no kernel patches or out-of-tree
|
||||||
|
modules, and it is compatible with all 2.4 and 2.6 kernels.
|
||||||
|
|
||||||
|
If you're impatient and you know what stateless NAT64 is, you can skip to the
|
||||||
|
Installation & Basic Configuration section.
|
||||||
|
|
||||||
|
-------------------------------
|
||||||
|
Stateless versus Stateful NAT64
|
||||||
|
-------------------------------
|
||||||
|
|
||||||
|
Most people are familiar with stateful NAT, which allows N:1 address mapping
|
||||||
|
by tracking TCP and UDP sessions and rewriting port numbers on each packet.
|
||||||
|
Most commonly this is used to translate sessions from multiple "internal"
|
||||||
|
hosts (which are numbered with private IPv4 addresses) onto a single global
|
||||||
|
IPv4 address on the NAT device's "external" interface.
|
||||||
|
|
||||||
|
Stateless NAT does no such session tracking or port number rewriting. It
|
||||||
|
simply performs a 1:1 substitution of IP addresses using a mapping table
|
||||||
|
provided by the network administrator. For example, an organization whose
|
||||||
|
global address allocation was 198.51.100.0/24 but whose hosts were using
|
||||||
|
addresses in 192.0.2.0/24 could use a stateless NAT to rewrite 192.0.2.1 into
|
||||||
|
198.51.100.1, 192.0.2.35 into 198.51.100.35, etc, in the outbound direction,
|
||||||
|
and the reverse in the inbound direction. This is commonly done when an
|
||||||
|
organization moves to a new ISP and receives a new IPv4 address delegation of
|
||||||
|
the same size as their old delegation but does not want to renumber their
|
||||||
|
network.
|
||||||
|
|
||||||
|
TAYGA and other stateless NAT64 translators operate in this fashion. When
|
||||||
|
translating packets between IPv4 and IPv6, the source and destination
|
||||||
|
addresses in the packet headers are substituted using a 1:1 mapping. This
|
||||||
|
means that, in order to exchange packets across the NAT64, each IPv4 host must
|
||||||
|
be represented by a unique IPv6 address, and each IPv6 host must be
|
||||||
|
represented by a unique IPv4 address. How this mapping is performed is
|
||||||
|
discussed in the next sections.
|
||||||
|
|
||||||
|
In situations where stateful NAT64 is required, TAYGA can be used in
|
||||||
|
combination with a stateful IPv4 NAT such as the iptables MASQUERADE target.
|
||||||
|
This allows the administrator a great deal more flexibility than if stateful
|
||||||
|
NAT were implemented directly in TAYGA.
|
||||||
|
|
||||||
|
----------------------
|
||||||
|
Mapping IPv4 into IPv6
|
||||||
|
----------------------
|
||||||
|
|
||||||
|
TAYGA maps IPv4 addresses into the IPv6 network according to RFC 6052. This
|
||||||
|
states that a 32-bit IPv4 address should be appended to a designated IPv6
|
||||||
|
prefix, which we call the NAT64 prefix, and the resulting IPv6 address can be
|
||||||
|
used to contact the IPv4 host through the NAT64.
|
||||||
|
|
||||||
|
The NAT64 prefix should be assigned out of a site's global IPv6 address
|
||||||
|
allocation. For example, if a site is allocated 2001:db8:1::/48, the prefix
|
||||||
|
2001:db8:1:ffff::/96 could be set aside for NAT64. (There are several options
|
||||||
|
for the length of the NAT64 prefix, but a /96 is recommended.) The IPv4 host
|
||||||
|
198.51.100.10 could then be accessed through the NAT64 using the address
|
||||||
|
2001:db8:1:ffff::c633:640a. Conveniently, it is possible to use the syntax
|
||||||
|
2001:db8:1:ffff::198.51.100.10 instead.
|
||||||
|
|
||||||
|
RFC 6052 also specifies a Well-Known Prefix 64:ff9b::/96 which can be used for
|
||||||
|
NAT64 service rather than allocating a prefix from the site's IPv6 address
|
||||||
|
block. However, this comes with several restrictions, primarily that hosts
|
||||||
|
with private IPv4 addresses (10.x.x.x, 192.168.x.x, etc) cannot be accessed
|
||||||
|
through the NAT64. See RFC 6052 for more information.
|
||||||
|
|
||||||
|
If NAT64 service is needed for only a few hosts instead of the entire IPv4
|
||||||
|
address space, TAYGA can be configured without a NAT64 prefix, and address
|
||||||
|
maps can be assigned on a host-by-host basis.
|
||||||
|
|
||||||
|
----------------------
|
||||||
|
Mapping IPv6 into IPv4
|
||||||
|
----------------------
|
||||||
|
|
||||||
|
Being a stateless NAT, TAYGA requires that a unique IPv4 address is assigned
|
||||||
|
to every IPv6 host that needs NAT64 service. This assignment can be done
|
||||||
|
statically by the network administrator, or dynamically by TAYGA from a pool
|
||||||
|
of IPv4 addresses designated for this purpose.
|
||||||
|
|
||||||
|
Static address mapping is desirable for servers or other hosts requiring a
|
||||||
|
well-known address. Statically mapped addresses may be entered into DNS, for
|
||||||
|
example.
|
||||||
|
|
||||||
|
Dynamic address mapping allows TAYGA to assign IPv4 addresses to IPv6 hosts as
|
||||||
|
they are needed. By default, these assignments are guaranteed to remain
|
||||||
|
usable for up to two hours after the last packet seen, but they are retained
|
||||||
|
for up to two weeks as long as the address pool does not become empty.
|
||||||
|
Assignments are written to disk so they persist through a restart of the TAYGA
|
||||||
|
daemon, allowing existing TCP and UDP sessions to continue uninterrupted.
|
||||||
|
|
||||||
|
(Of course, TAYGA also supports the addressing architecture described in RFC
|
||||||
|
6052 in which IPv6 hosts are numbered with "IPv4-translatable IPv6 addresses"
|
||||||
|
carved out of the NAT64 prefix.)
|
||||||
|
|
||||||
|
----------------------------------
|
||||||
|
Installation & Basic Configuration
|
||||||
|
----------------------------------
|
||||||
|
|
||||||
|
TAYGA uses the GNU Automake/Autoconf system, which requires the `configure`
|
||||||
|
script to be run to generate the Makefile prior to building. The --prefix
|
||||||
|
and/or --sysconfdir options can be specified to the configure script to
|
||||||
|
specify the top-level installation path and tayga.conf file directory,
|
||||||
|
respectively.
|
||||||
|
|
||||||
|
After unpacking the distribution tar.bz2 file, run:
|
||||||
|
|
||||||
|
# ./configure && make && make install
|
||||||
|
|
||||||
|
This will install the tayga executable in /usr/local/sbin/tayga and the sample
|
||||||
|
config file in /usr/local/etc/tayga.conf.example.
|
||||||
|
|
||||||
|
Next, if you would like dynamic maps to be persistent between TAYGA restarts,
|
||||||
|
create a directory to store the dynamic.map file:
|
||||||
|
|
||||||
|
# mkdir -p /var/db/tayga
|
||||||
|
|
||||||
|
Now create your site-specific tayga.conf configuration file. The installed
|
||||||
|
tayga.conf.example file can be copied to tayga.conf and modified to suit your
|
||||||
|
site. Here is a sample minimal configuration:
|
||||||
|
|
||||||
|
tun-device nat64
|
||||||
|
ipv4-addr 192.168.255.1
|
||||||
|
prefix 2001:db8:1:ffff::/96 # replace with a prefix from
|
||||||
|
# your site's address range
|
||||||
|
dynamic-pool 192.168.255.0/24
|
||||||
|
data-dir /var/db/tayga # omit if you do not need persistent
|
||||||
|
# dynamic address maps
|
||||||
|
|
||||||
|
Before starting the TAYGA daemon, the routing setup on your system will need
|
||||||
|
to be changed to send IPv4 and IPv6 packets to TAYGA. First create the TUN
|
||||||
|
network interface:
|
||||||
|
|
||||||
|
# tayga --mktun
|
||||||
|
|
||||||
|
If TAYGA prints any errors, you will need to fix your config file before
|
||||||
|
continuing. Otherwise, the new nat64 interface can be configured and the
|
||||||
|
proper routes can be added to your system:
|
||||||
|
|
||||||
|
# ip link set nat64 up
|
||||||
|
# ip addr add 2001:db8:1::1 dev nat64 # replace with your router's address
|
||||||
|
# ip addr add 192.168.0.1 dev nat64 # replace with your router's address
|
||||||
|
# ip route add 2001:db8:1:ffff::/96 dev nat64 # from tayga.conf
|
||||||
|
# ip route add 192.168.255.0/24 dev nat64 # from tayga.conf
|
||||||
|
|
||||||
|
Firewalling your NAT64 prefix from outside access is highly recommended:
|
||||||
|
|
||||||
|
# ip6tables -A FORWARD -s 2001:db8:1::/48 -d 2001:db8:1:ffff::/96 -j ACCEPT
|
||||||
|
# ip6tables -A FORWARD -d 2001:db8:1:ffff::/96 -j DROP
|
||||||
|
|
||||||
|
At this point, you may start the tayga process:
|
||||||
|
|
||||||
|
# tayga
|
||||||
|
|
||||||
|
Check your system log (/var/log/syslog or /var/log/messages) for status
|
||||||
|
information.
|
||||||
|
|
||||||
|
If you are having difficulty configuring TAYGA, use the -d option to run the
|
||||||
|
tayga process in the foreground and send all log messages to stdout:
|
||||||
|
|
||||||
|
# tayga -d
|
||||||
951
aclocal.m4
vendored
Normal file
951
aclocal.m4
vendored
Normal file
|
|
@ -0,0 +1,951 @@
|
||||||
|
# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
||||||
|
# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# This program is distributed in the hope that it will be useful,
|
||||||
|
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
||||||
|
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
||||||
|
# PARTICULAR PURPOSE.
|
||||||
|
|
||||||
|
m4_ifndef([AC_AUTOCONF_VERSION],
|
||||||
|
[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
|
||||||
|
m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.65],,
|
||||||
|
[m4_warning([this file was generated for autoconf 2.65.
|
||||||
|
You have another version of autoconf. It may work, but is not guaranteed to.
|
||||||
|
If you have problems, you may need to regenerate the build system entirely.
|
||||||
|
To do so, use the procedure documented by the package, typically `autoreconf'.])])
|
||||||
|
|
||||||
|
# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# AM_AUTOMAKE_VERSION(VERSION)
|
||||||
|
# ----------------------------
|
||||||
|
# Automake X.Y traces this macro to ensure aclocal.m4 has been
|
||||||
|
# generated from the m4 files accompanying Automake X.Y.
|
||||||
|
# (This private macro should not be called outside this file.)
|
||||||
|
AC_DEFUN([AM_AUTOMAKE_VERSION],
|
||||||
|
[am__api_version='1.11'
|
||||||
|
dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
|
||||||
|
dnl require some minimum version. Point them to the right macro.
|
||||||
|
m4_if([$1], [1.11.1], [],
|
||||||
|
[AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
|
||||||
|
])
|
||||||
|
|
||||||
|
# _AM_AUTOCONF_VERSION(VERSION)
|
||||||
|
# -----------------------------
|
||||||
|
# aclocal traces this macro to find the Autoconf version.
|
||||||
|
# This is a private macro too. Using m4_define simplifies
|
||||||
|
# the logic in aclocal, which can simply ignore this definition.
|
||||||
|
m4_define([_AM_AUTOCONF_VERSION], [])
|
||||||
|
|
||||||
|
# AM_SET_CURRENT_AUTOMAKE_VERSION
|
||||||
|
# -------------------------------
|
||||||
|
# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
|
||||||
|
# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
|
||||||
|
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
|
||||||
|
[AM_AUTOMAKE_VERSION([1.11.1])dnl
|
||||||
|
m4_ifndef([AC_AUTOCONF_VERSION],
|
||||||
|
[m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
|
||||||
|
_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
|
||||||
|
|
||||||
|
# AM_AUX_DIR_EXPAND -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
|
||||||
|
# $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to
|
||||||
|
# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
|
||||||
|
#
|
||||||
|
# Of course, Automake must honor this variable whenever it calls a
|
||||||
|
# tool from the auxiliary directory. The problem is that $srcdir (and
|
||||||
|
# therefore $ac_aux_dir as well) can be either absolute or relative,
|
||||||
|
# depending on how configure is run. This is pretty annoying, since
|
||||||
|
# it makes $ac_aux_dir quite unusable in subdirectories: in the top
|
||||||
|
# source directory, any form will work fine, but in subdirectories a
|
||||||
|
# relative path needs to be adjusted first.
|
||||||
|
#
|
||||||
|
# $ac_aux_dir/missing
|
||||||
|
# fails when called from a subdirectory if $ac_aux_dir is relative
|
||||||
|
# $top_srcdir/$ac_aux_dir/missing
|
||||||
|
# fails if $ac_aux_dir is absolute,
|
||||||
|
# fails when called from a subdirectory in a VPATH build with
|
||||||
|
# a relative $ac_aux_dir
|
||||||
|
#
|
||||||
|
# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
|
||||||
|
# are both prefixed by $srcdir. In an in-source build this is usually
|
||||||
|
# harmless because $srcdir is `.', but things will broke when you
|
||||||
|
# start a VPATH build or use an absolute $srcdir.
|
||||||
|
#
|
||||||
|
# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
|
||||||
|
# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
|
||||||
|
# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
|
||||||
|
# and then we would define $MISSING as
|
||||||
|
# MISSING="\${SHELL} $am_aux_dir/missing"
|
||||||
|
# This will work as long as MISSING is not called from configure, because
|
||||||
|
# unfortunately $(top_srcdir) has no meaning in configure.
|
||||||
|
# However there are other variables, like CC, which are often used in
|
||||||
|
# configure, and could therefore not use this "fixed" $ac_aux_dir.
|
||||||
|
#
|
||||||
|
# Another solution, used here, is to always expand $ac_aux_dir to an
|
||||||
|
# absolute PATH. The drawback is that using absolute paths prevent a
|
||||||
|
# configured tree to be moved without reconfiguration.
|
||||||
|
|
||||||
|
AC_DEFUN([AM_AUX_DIR_EXPAND],
|
||||||
|
[dnl Rely on autoconf to set up CDPATH properly.
|
||||||
|
AC_PREREQ([2.50])dnl
|
||||||
|
# expand $ac_aux_dir to an absolute path
|
||||||
|
am_aux_dir=`cd $ac_aux_dir && pwd`
|
||||||
|
])
|
||||||
|
|
||||||
|
# AM_CONDITIONAL -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008
|
||||||
|
# Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 9
|
||||||
|
|
||||||
|
# AM_CONDITIONAL(NAME, SHELL-CONDITION)
|
||||||
|
# -------------------------------------
|
||||||
|
# Define a conditional.
|
||||||
|
AC_DEFUN([AM_CONDITIONAL],
|
||||||
|
[AC_PREREQ(2.52)dnl
|
||||||
|
ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
|
||||||
|
[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
|
||||||
|
AC_SUBST([$1_TRUE])dnl
|
||||||
|
AC_SUBST([$1_FALSE])dnl
|
||||||
|
_AM_SUBST_NOTMAKE([$1_TRUE])dnl
|
||||||
|
_AM_SUBST_NOTMAKE([$1_FALSE])dnl
|
||||||
|
m4_define([_AM_COND_VALUE_$1], [$2])dnl
|
||||||
|
if $2; then
|
||||||
|
$1_TRUE=
|
||||||
|
$1_FALSE='#'
|
||||||
|
else
|
||||||
|
$1_TRUE='#'
|
||||||
|
$1_FALSE=
|
||||||
|
fi
|
||||||
|
AC_CONFIG_COMMANDS_PRE(
|
||||||
|
[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
|
||||||
|
AC_MSG_ERROR([[conditional "$1" was never defined.
|
||||||
|
Usually this means the macro was only invoked conditionally.]])
|
||||||
|
fi])])
|
||||||
|
|
||||||
|
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
|
||||||
|
# Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 10
|
||||||
|
|
||||||
|
# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
|
||||||
|
# written in clear, in which case automake, when reading aclocal.m4,
|
||||||
|
# will think it sees a *use*, and therefore will trigger all it's
|
||||||
|
# C support machinery. Also note that it means that autoscan, seeing
|
||||||
|
# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
|
||||||
|
|
||||||
|
|
||||||
|
# _AM_DEPENDENCIES(NAME)
|
||||||
|
# ----------------------
|
||||||
|
# See how the compiler implements dependency checking.
|
||||||
|
# NAME is "CC", "CXX", "GCJ", or "OBJC".
|
||||||
|
# We try a few techniques and use that to set a single cache variable.
|
||||||
|
#
|
||||||
|
# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
|
||||||
|
# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
|
||||||
|
# dependency, and given that the user is not expected to run this macro,
|
||||||
|
# just rely on AC_PROG_CC.
|
||||||
|
AC_DEFUN([_AM_DEPENDENCIES],
|
||||||
|
[AC_REQUIRE([AM_SET_DEPDIR])dnl
|
||||||
|
AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
|
||||||
|
AC_REQUIRE([AM_MAKE_INCLUDE])dnl
|
||||||
|
AC_REQUIRE([AM_DEP_TRACK])dnl
|
||||||
|
|
||||||
|
ifelse([$1], CC, [depcc="$CC" am_compiler_list=],
|
||||||
|
[$1], CXX, [depcc="$CXX" am_compiler_list=],
|
||||||
|
[$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
|
||||||
|
[$1], UPC, [depcc="$UPC" am_compiler_list=],
|
||||||
|
[$1], GCJ, [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
|
||||||
|
[depcc="$$1" am_compiler_list=])
|
||||||
|
|
||||||
|
AC_CACHE_CHECK([dependency style of $depcc],
|
||||||
|
[am_cv_$1_dependencies_compiler_type],
|
||||||
|
[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
|
||||||
|
# We make a subdir and do the tests there. Otherwise we can end up
|
||||||
|
# making bogus files that we don't know about and never remove. For
|
||||||
|
# instance it was reported that on HP-UX the gcc test will end up
|
||||||
|
# making a dummy file named `D' -- because `-MD' means `put the output
|
||||||
|
# in D'.
|
||||||
|
mkdir conftest.dir
|
||||||
|
# Copy depcomp to subdir because otherwise we won't find it if we're
|
||||||
|
# using a relative directory.
|
||||||
|
cp "$am_depcomp" conftest.dir
|
||||||
|
cd conftest.dir
|
||||||
|
# We will build objects and dependencies in a subdirectory because
|
||||||
|
# it helps to detect inapplicable dependency modes. For instance
|
||||||
|
# both Tru64's cc and ICC support -MD to output dependencies as a
|
||||||
|
# side effect of compilation, but ICC will put the dependencies in
|
||||||
|
# the current directory while Tru64 will put them in the object
|
||||||
|
# directory.
|
||||||
|
mkdir sub
|
||||||
|
|
||||||
|
am_cv_$1_dependencies_compiler_type=none
|
||||||
|
if test "$am_compiler_list" = ""; then
|
||||||
|
am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
|
||||||
|
fi
|
||||||
|
am__universal=false
|
||||||
|
m4_case([$1], [CC],
|
||||||
|
[case " $depcc " in #(
|
||||||
|
*\ -arch\ *\ -arch\ *) am__universal=true ;;
|
||||||
|
esac],
|
||||||
|
[CXX],
|
||||||
|
[case " $depcc " in #(
|
||||||
|
*\ -arch\ *\ -arch\ *) am__universal=true ;;
|
||||||
|
esac])
|
||||||
|
|
||||||
|
for depmode in $am_compiler_list; do
|
||||||
|
# Setup a source with many dependencies, because some compilers
|
||||||
|
# like to wrap large dependency lists on column 80 (with \), and
|
||||||
|
# we should not choose a depcomp mode which is confused by this.
|
||||||
|
#
|
||||||
|
# We need to recreate these files for each test, as the compiler may
|
||||||
|
# overwrite some of them when testing with obscure command lines.
|
||||||
|
# This happens at least with the AIX C compiler.
|
||||||
|
: > sub/conftest.c
|
||||||
|
for i in 1 2 3 4 5 6; do
|
||||||
|
echo '#include "conftst'$i'.h"' >> sub/conftest.c
|
||||||
|
# Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
|
||||||
|
# Solaris 8's {/usr,}/bin/sh.
|
||||||
|
touch sub/conftst$i.h
|
||||||
|
done
|
||||||
|
echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
|
||||||
|
|
||||||
|
# We check with `-c' and `-o' for the sake of the "dashmstdout"
|
||||||
|
# mode. It turns out that the SunPro C++ compiler does not properly
|
||||||
|
# handle `-M -o', and we need to detect this. Also, some Intel
|
||||||
|
# versions had trouble with output in subdirs
|
||||||
|
am__obj=sub/conftest.${OBJEXT-o}
|
||||||
|
am__minus_obj="-o $am__obj"
|
||||||
|
case $depmode in
|
||||||
|
gcc)
|
||||||
|
# This depmode causes a compiler race in universal mode.
|
||||||
|
test "$am__universal" = false || continue
|
||||||
|
;;
|
||||||
|
nosideeffect)
|
||||||
|
# after this tag, mechanisms are not by side-effect, so they'll
|
||||||
|
# only be used when explicitly requested
|
||||||
|
if test "x$enable_dependency_tracking" = xyes; then
|
||||||
|
continue
|
||||||
|
else
|
||||||
|
break
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
msvisualcpp | msvcmsys)
|
||||||
|
# This compiler won't grok `-c -o', but also, the minuso test has
|
||||||
|
# not run yet. These depmodes are late enough in the game, and
|
||||||
|
# so weak that their functioning should not be impacted.
|
||||||
|
am__obj=conftest.${OBJEXT-o}
|
||||||
|
am__minus_obj=
|
||||||
|
;;
|
||||||
|
none) break ;;
|
||||||
|
esac
|
||||||
|
if depmode=$depmode \
|
||||||
|
source=sub/conftest.c object=$am__obj \
|
||||||
|
depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
|
||||||
|
$SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
|
||||||
|
>/dev/null 2>conftest.err &&
|
||||||
|
grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
|
||||||
|
grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
|
||||||
|
grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
|
||||||
|
${MAKE-make} -s -f confmf > /dev/null 2>&1; then
|
||||||
|
# icc doesn't choke on unknown options, it will just issue warnings
|
||||||
|
# or remarks (even with -Werror). So we grep stderr for any message
|
||||||
|
# that says an option was ignored or not supported.
|
||||||
|
# When given -MP, icc 7.0 and 7.1 complain thusly:
|
||||||
|
# icc: Command line warning: ignoring option '-M'; no argument required
|
||||||
|
# The diagnosis changed in icc 8.0:
|
||||||
|
# icc: Command line remark: option '-MP' not supported
|
||||||
|
if (grep 'ignoring option' conftest.err ||
|
||||||
|
grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
|
||||||
|
am_cv_$1_dependencies_compiler_type=$depmode
|
||||||
|
break
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
|
||||||
|
cd ..
|
||||||
|
rm -rf conftest.dir
|
||||||
|
else
|
||||||
|
am_cv_$1_dependencies_compiler_type=none
|
||||||
|
fi
|
||||||
|
])
|
||||||
|
AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
|
||||||
|
AM_CONDITIONAL([am__fastdep$1], [
|
||||||
|
test "x$enable_dependency_tracking" != xno \
|
||||||
|
&& test "$am_cv_$1_dependencies_compiler_type" = gcc3])
|
||||||
|
])
|
||||||
|
|
||||||
|
|
||||||
|
# AM_SET_DEPDIR
|
||||||
|
# -------------
|
||||||
|
# Choose a directory name for dependency files.
|
||||||
|
# This macro is AC_REQUIREd in _AM_DEPENDENCIES
|
||||||
|
AC_DEFUN([AM_SET_DEPDIR],
|
||||||
|
[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
|
||||||
|
AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
|
||||||
|
])
|
||||||
|
|
||||||
|
|
||||||
|
# AM_DEP_TRACK
|
||||||
|
# ------------
|
||||||
|
AC_DEFUN([AM_DEP_TRACK],
|
||||||
|
[AC_ARG_ENABLE(dependency-tracking,
|
||||||
|
[ --disable-dependency-tracking speeds up one-time build
|
||||||
|
--enable-dependency-tracking do not reject slow dependency extractors])
|
||||||
|
if test "x$enable_dependency_tracking" != xno; then
|
||||||
|
am_depcomp="$ac_aux_dir/depcomp"
|
||||||
|
AMDEPBACKSLASH='\'
|
||||||
|
fi
|
||||||
|
AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
|
||||||
|
AC_SUBST([AMDEPBACKSLASH])dnl
|
||||||
|
_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
|
||||||
|
])
|
||||||
|
|
||||||
|
# Generate code to set up dependency tracking. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
|
||||||
|
# Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
#serial 5
|
||||||
|
|
||||||
|
# _AM_OUTPUT_DEPENDENCY_COMMANDS
|
||||||
|
# ------------------------------
|
||||||
|
AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
|
||||||
|
[{
|
||||||
|
# Autoconf 2.62 quotes --file arguments for eval, but not when files
|
||||||
|
# are listed without --file. Let's play safe and only enable the eval
|
||||||
|
# if we detect the quoting.
|
||||||
|
case $CONFIG_FILES in
|
||||||
|
*\'*) eval set x "$CONFIG_FILES" ;;
|
||||||
|
*) set x $CONFIG_FILES ;;
|
||||||
|
esac
|
||||||
|
shift
|
||||||
|
for mf
|
||||||
|
do
|
||||||
|
# Strip MF so we end up with the name of the file.
|
||||||
|
mf=`echo "$mf" | sed -e 's/:.*$//'`
|
||||||
|
# Check whether this is an Automake generated Makefile or not.
|
||||||
|
# We used to match only the files named `Makefile.in', but
|
||||||
|
# some people rename them; so instead we look at the file content.
|
||||||
|
# Grep'ing the first line is not enough: some people post-process
|
||||||
|
# each Makefile.in and add a new line on top of each file to say so.
|
||||||
|
# Grep'ing the whole file is not good either: AIX grep has a line
|
||||||
|
# limit of 2048, but all sed's we know have understand at least 4000.
|
||||||
|
if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
|
||||||
|
dirpart=`AS_DIRNAME("$mf")`
|
||||||
|
else
|
||||||
|
continue
|
||||||
|
fi
|
||||||
|
# Extract the definition of DEPDIR, am__include, and am__quote
|
||||||
|
# from the Makefile without running `make'.
|
||||||
|
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
|
||||||
|
test -z "$DEPDIR" && continue
|
||||||
|
am__include=`sed -n 's/^am__include = //p' < "$mf"`
|
||||||
|
test -z "am__include" && continue
|
||||||
|
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
|
||||||
|
# When using ansi2knr, U may be empty or an underscore; expand it
|
||||||
|
U=`sed -n 's/^U = //p' < "$mf"`
|
||||||
|
# Find all dependency output files, they are included files with
|
||||||
|
# $(DEPDIR) in their names. We invoke sed twice because it is the
|
||||||
|
# simplest approach to changing $(DEPDIR) to its actual value in the
|
||||||
|
# expansion.
|
||||||
|
for file in `sed -n "
|
||||||
|
s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
|
||||||
|
sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
|
||||||
|
# Make sure the directory exists.
|
||||||
|
test -f "$dirpart/$file" && continue
|
||||||
|
fdir=`AS_DIRNAME(["$file"])`
|
||||||
|
AS_MKDIR_P([$dirpart/$fdir])
|
||||||
|
# echo "creating $dirpart/$file"
|
||||||
|
echo '# dummy' > "$dirpart/$file"
|
||||||
|
done
|
||||||
|
done
|
||||||
|
}
|
||||||
|
])# _AM_OUTPUT_DEPENDENCY_COMMANDS
|
||||||
|
|
||||||
|
|
||||||
|
# AM_OUTPUT_DEPENDENCY_COMMANDS
|
||||||
|
# -----------------------------
|
||||||
|
# This macro should only be invoked once -- use via AC_REQUIRE.
|
||||||
|
#
|
||||||
|
# This code is only required when automatic dependency tracking
|
||||||
|
# is enabled. FIXME. This creates each `.P' file that we will
|
||||||
|
# need in order to bootstrap the dependency handling code.
|
||||||
|
AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
|
||||||
|
[AC_CONFIG_COMMANDS([depfiles],
|
||||||
|
[test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
|
||||||
|
[AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
|
||||||
|
])
|
||||||
|
|
||||||
|
# Do all the work for Automake. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
|
||||||
|
# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 16
|
||||||
|
|
||||||
|
# This macro actually does too much. Some checks are only needed if
|
||||||
|
# your package does certain things. But this isn't really a big deal.
|
||||||
|
|
||||||
|
# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
|
||||||
|
# AM_INIT_AUTOMAKE([OPTIONS])
|
||||||
|
# -----------------------------------------------
|
||||||
|
# The call with PACKAGE and VERSION arguments is the old style
|
||||||
|
# call (pre autoconf-2.50), which is being phased out. PACKAGE
|
||||||
|
# and VERSION should now be passed to AC_INIT and removed from
|
||||||
|
# the call to AM_INIT_AUTOMAKE.
|
||||||
|
# We support both call styles for the transition. After
|
||||||
|
# the next Automake release, Autoconf can make the AC_INIT
|
||||||
|
# arguments mandatory, and then we can depend on a new Autoconf
|
||||||
|
# release and drop the old call support.
|
||||||
|
AC_DEFUN([AM_INIT_AUTOMAKE],
|
||||||
|
[AC_PREREQ([2.62])dnl
|
||||||
|
dnl Autoconf wants to disallow AM_ names. We explicitly allow
|
||||||
|
dnl the ones we care about.
|
||||||
|
m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
|
||||||
|
AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
|
||||||
|
AC_REQUIRE([AC_PROG_INSTALL])dnl
|
||||||
|
if test "`cd $srcdir && pwd`" != "`pwd`"; then
|
||||||
|
# Use -I$(srcdir) only when $(srcdir) != ., so that make's output
|
||||||
|
# is not polluted with repeated "-I."
|
||||||
|
AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
|
||||||
|
# test to see if srcdir already configured
|
||||||
|
if test -f $srcdir/config.status; then
|
||||||
|
AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# test whether we have cygpath
|
||||||
|
if test -z "$CYGPATH_W"; then
|
||||||
|
if (cygpath --version) >/dev/null 2>/dev/null; then
|
||||||
|
CYGPATH_W='cygpath -w'
|
||||||
|
else
|
||||||
|
CYGPATH_W=echo
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
AC_SUBST([CYGPATH_W])
|
||||||
|
|
||||||
|
# Define the identity of the package.
|
||||||
|
dnl Distinguish between old-style and new-style calls.
|
||||||
|
m4_ifval([$2],
|
||||||
|
[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
|
||||||
|
AC_SUBST([PACKAGE], [$1])dnl
|
||||||
|
AC_SUBST([VERSION], [$2])],
|
||||||
|
[_AM_SET_OPTIONS([$1])dnl
|
||||||
|
dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
|
||||||
|
m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
|
||||||
|
[m4_fatal([AC_INIT should be called with package and version arguments])])dnl
|
||||||
|
AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
|
||||||
|
AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
|
||||||
|
|
||||||
|
_AM_IF_OPTION([no-define],,
|
||||||
|
[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
|
||||||
|
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
|
||||||
|
|
||||||
|
# Some tools Automake needs.
|
||||||
|
AC_REQUIRE([AM_SANITY_CHECK])dnl
|
||||||
|
AC_REQUIRE([AC_ARG_PROGRAM])dnl
|
||||||
|
AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
|
||||||
|
AM_MISSING_PROG(AUTOCONF, autoconf)
|
||||||
|
AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
|
||||||
|
AM_MISSING_PROG(AUTOHEADER, autoheader)
|
||||||
|
AM_MISSING_PROG(MAKEINFO, makeinfo)
|
||||||
|
AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
|
||||||
|
AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
|
||||||
|
AC_REQUIRE([AM_PROG_MKDIR_P])dnl
|
||||||
|
# We need awk for the "check" target. The system "awk" is bad on
|
||||||
|
# some platforms.
|
||||||
|
AC_REQUIRE([AC_PROG_AWK])dnl
|
||||||
|
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
|
||||||
|
AC_REQUIRE([AM_SET_LEADING_DOT])dnl
|
||||||
|
_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
|
||||||
|
[_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
|
||||||
|
[_AM_PROG_TAR([v7])])])
|
||||||
|
_AM_IF_OPTION([no-dependencies],,
|
||||||
|
[AC_PROVIDE_IFELSE([AC_PROG_CC],
|
||||||
|
[_AM_DEPENDENCIES(CC)],
|
||||||
|
[define([AC_PROG_CC],
|
||||||
|
defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
|
||||||
|
AC_PROVIDE_IFELSE([AC_PROG_CXX],
|
||||||
|
[_AM_DEPENDENCIES(CXX)],
|
||||||
|
[define([AC_PROG_CXX],
|
||||||
|
defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
|
||||||
|
AC_PROVIDE_IFELSE([AC_PROG_OBJC],
|
||||||
|
[_AM_DEPENDENCIES(OBJC)],
|
||||||
|
[define([AC_PROG_OBJC],
|
||||||
|
defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
|
||||||
|
])
|
||||||
|
_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
|
||||||
|
dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
|
||||||
|
dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This macro
|
||||||
|
dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
|
||||||
|
AC_CONFIG_COMMANDS_PRE(dnl
|
||||||
|
[m4_provide_if([_AM_COMPILER_EXEEXT],
|
||||||
|
[AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
|
||||||
|
])
|
||||||
|
|
||||||
|
dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
|
||||||
|
dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
|
||||||
|
dnl mangled by Autoconf and run in a shell conditional statement.
|
||||||
|
m4_define([_AC_COMPILER_EXEEXT],
|
||||||
|
m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
|
||||||
|
|
||||||
|
|
||||||
|
# When config.status generates a header, we must update the stamp-h file.
|
||||||
|
# This file resides in the same directory as the config header
|
||||||
|
# that is generated. The stamp files are numbered to have different names.
|
||||||
|
|
||||||
|
# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
|
||||||
|
# loop where config.status creates the headers, so we can generate
|
||||||
|
# our stamp files there.
|
||||||
|
AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
|
||||||
|
[# Compute $1's index in $config_headers.
|
||||||
|
_am_arg=$1
|
||||||
|
_am_stamp_count=1
|
||||||
|
for _am_header in $config_headers :; do
|
||||||
|
case $_am_header in
|
||||||
|
$_am_arg | $_am_arg:* )
|
||||||
|
break ;;
|
||||||
|
* )
|
||||||
|
_am_stamp_count=`expr $_am_stamp_count + 1` ;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
|
||||||
|
|
||||||
|
# Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# AM_PROG_INSTALL_SH
|
||||||
|
# ------------------
|
||||||
|
# Define $install_sh.
|
||||||
|
AC_DEFUN([AM_PROG_INSTALL_SH],
|
||||||
|
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
|
||||||
|
if test x"${install_sh}" != xset; then
|
||||||
|
case $am_aux_dir in
|
||||||
|
*\ * | *\ *)
|
||||||
|
install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
|
||||||
|
*)
|
||||||
|
install_sh="\${SHELL} $am_aux_dir/install-sh"
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
AC_SUBST(install_sh)])
|
||||||
|
|
||||||
|
# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 2
|
||||||
|
|
||||||
|
# Check whether the underlying file-system supports filenames
|
||||||
|
# with a leading dot. For instance MS-DOS doesn't.
|
||||||
|
AC_DEFUN([AM_SET_LEADING_DOT],
|
||||||
|
[rm -rf .tst 2>/dev/null
|
||||||
|
mkdir .tst 2>/dev/null
|
||||||
|
if test -d .tst; then
|
||||||
|
am__leading_dot=.
|
||||||
|
else
|
||||||
|
am__leading_dot=_
|
||||||
|
fi
|
||||||
|
rmdir .tst 2>/dev/null
|
||||||
|
AC_SUBST([am__leading_dot])])
|
||||||
|
|
||||||
|
# Check to see how 'make' treats includes. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 4
|
||||||
|
|
||||||
|
# AM_MAKE_INCLUDE()
|
||||||
|
# -----------------
|
||||||
|
# Check to see how make treats includes.
|
||||||
|
AC_DEFUN([AM_MAKE_INCLUDE],
|
||||||
|
[am_make=${MAKE-make}
|
||||||
|
cat > confinc << 'END'
|
||||||
|
am__doit:
|
||||||
|
@echo this is the am__doit target
|
||||||
|
.PHONY: am__doit
|
||||||
|
END
|
||||||
|
# If we don't find an include directive, just comment out the code.
|
||||||
|
AC_MSG_CHECKING([for style of include used by $am_make])
|
||||||
|
am__include="#"
|
||||||
|
am__quote=
|
||||||
|
_am_result=none
|
||||||
|
# First try GNU make style include.
|
||||||
|
echo "include confinc" > confmf
|
||||||
|
# Ignore all kinds of additional output from `make'.
|
||||||
|
case `$am_make -s -f confmf 2> /dev/null` in #(
|
||||||
|
*the\ am__doit\ target*)
|
||||||
|
am__include=include
|
||||||
|
am__quote=
|
||||||
|
_am_result=GNU
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
# Now try BSD make style include.
|
||||||
|
if test "$am__include" = "#"; then
|
||||||
|
echo '.include "confinc"' > confmf
|
||||||
|
case `$am_make -s -f confmf 2> /dev/null` in #(
|
||||||
|
*the\ am__doit\ target*)
|
||||||
|
am__include=.include
|
||||||
|
am__quote="\""
|
||||||
|
_am_result=BSD
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
AC_SUBST([am__include])
|
||||||
|
AC_SUBST([am__quote])
|
||||||
|
AC_MSG_RESULT([$_am_result])
|
||||||
|
rm -f confinc confmf
|
||||||
|
])
|
||||||
|
|
||||||
|
# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
|
||||||
|
# Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 6
|
||||||
|
|
||||||
|
# AM_MISSING_PROG(NAME, PROGRAM)
|
||||||
|
# ------------------------------
|
||||||
|
AC_DEFUN([AM_MISSING_PROG],
|
||||||
|
[AC_REQUIRE([AM_MISSING_HAS_RUN])
|
||||||
|
$1=${$1-"${am_missing_run}$2"}
|
||||||
|
AC_SUBST($1)])
|
||||||
|
|
||||||
|
|
||||||
|
# AM_MISSING_HAS_RUN
|
||||||
|
# ------------------
|
||||||
|
# Define MISSING if not defined so far and test if it supports --run.
|
||||||
|
# If it does, set am_missing_run to use it, otherwise, to nothing.
|
||||||
|
AC_DEFUN([AM_MISSING_HAS_RUN],
|
||||||
|
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
|
||||||
|
AC_REQUIRE_AUX_FILE([missing])dnl
|
||||||
|
if test x"${MISSING+set}" != xset; then
|
||||||
|
case $am_aux_dir in
|
||||||
|
*\ * | *\ *)
|
||||||
|
MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
|
||||||
|
*)
|
||||||
|
MISSING="\${SHELL} $am_aux_dir/missing" ;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
# Use eval to expand $SHELL
|
||||||
|
if eval "$MISSING --run true"; then
|
||||||
|
am_missing_run="$MISSING --run "
|
||||||
|
else
|
||||||
|
am_missing_run=
|
||||||
|
AC_MSG_WARN([`missing' script is too old or missing])
|
||||||
|
fi
|
||||||
|
])
|
||||||
|
|
||||||
|
# Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# AM_PROG_MKDIR_P
|
||||||
|
# ---------------
|
||||||
|
# Check for `mkdir -p'.
|
||||||
|
AC_DEFUN([AM_PROG_MKDIR_P],
|
||||||
|
[AC_PREREQ([2.60])dnl
|
||||||
|
AC_REQUIRE([AC_PROG_MKDIR_P])dnl
|
||||||
|
dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
|
||||||
|
dnl while keeping a definition of mkdir_p for backward compatibility.
|
||||||
|
dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
|
||||||
|
dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
|
||||||
|
dnl Makefile.ins that do not define MKDIR_P, so we do our own
|
||||||
|
dnl adjustment using top_builddir (which is defined more often than
|
||||||
|
dnl MKDIR_P).
|
||||||
|
AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
|
||||||
|
case $mkdir_p in
|
||||||
|
[[\\/$]]* | ?:[[\\/]]*) ;;
|
||||||
|
*/*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
|
||||||
|
esac
|
||||||
|
])
|
||||||
|
|
||||||
|
# Helper functions for option handling. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 2001, 2002, 2003, 2005, 2008 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 4
|
||||||
|
|
||||||
|
# _AM_MANGLE_OPTION(NAME)
|
||||||
|
# -----------------------
|
||||||
|
AC_DEFUN([_AM_MANGLE_OPTION],
|
||||||
|
[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
|
||||||
|
|
||||||
|
# _AM_SET_OPTION(NAME)
|
||||||
|
# ------------------------------
|
||||||
|
# Set option NAME. Presently that only means defining a flag for this option.
|
||||||
|
AC_DEFUN([_AM_SET_OPTION],
|
||||||
|
[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
|
||||||
|
|
||||||
|
# _AM_SET_OPTIONS(OPTIONS)
|
||||||
|
# ----------------------------------
|
||||||
|
# OPTIONS is a space-separated list of Automake options.
|
||||||
|
AC_DEFUN([_AM_SET_OPTIONS],
|
||||||
|
[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
|
||||||
|
|
||||||
|
# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
|
||||||
|
# -------------------------------------------
|
||||||
|
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
|
||||||
|
AC_DEFUN([_AM_IF_OPTION],
|
||||||
|
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
|
||||||
|
|
||||||
|
# Check to make sure that the build environment is sane. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
|
||||||
|
# Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 5
|
||||||
|
|
||||||
|
# AM_SANITY_CHECK
|
||||||
|
# ---------------
|
||||||
|
AC_DEFUN([AM_SANITY_CHECK],
|
||||||
|
[AC_MSG_CHECKING([whether build environment is sane])
|
||||||
|
# Just in case
|
||||||
|
sleep 1
|
||||||
|
echo timestamp > conftest.file
|
||||||
|
# Reject unsafe characters in $srcdir or the absolute working directory
|
||||||
|
# name. Accept space and tab only in the latter.
|
||||||
|
am_lf='
|
||||||
|
'
|
||||||
|
case `pwd` in
|
||||||
|
*[[\\\"\#\$\&\'\`$am_lf]]*)
|
||||||
|
AC_MSG_ERROR([unsafe absolute working directory name]);;
|
||||||
|
esac
|
||||||
|
case $srcdir in
|
||||||
|
*[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
|
||||||
|
AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Do `set' in a subshell so we don't clobber the current shell's
|
||||||
|
# arguments. Must try -L first in case configure is actually a
|
||||||
|
# symlink; some systems play weird games with the mod time of symlinks
|
||||||
|
# (eg FreeBSD returns the mod time of the symlink's containing
|
||||||
|
# directory).
|
||||||
|
if (
|
||||||
|
set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
|
||||||
|
if test "$[*]" = "X"; then
|
||||||
|
# -L didn't work.
|
||||||
|
set X `ls -t "$srcdir/configure" conftest.file`
|
||||||
|
fi
|
||||||
|
rm -f conftest.file
|
||||||
|
if test "$[*]" != "X $srcdir/configure conftest.file" \
|
||||||
|
&& test "$[*]" != "X conftest.file $srcdir/configure"; then
|
||||||
|
|
||||||
|
# If neither matched, then we have a broken ls. This can happen
|
||||||
|
# if, for instance, CONFIG_SHELL is bash and it inherits a
|
||||||
|
# broken ls alias from the environment. This has actually
|
||||||
|
# happened. Such a system could not be considered "sane".
|
||||||
|
AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
|
||||||
|
alias in your environment])
|
||||||
|
fi
|
||||||
|
|
||||||
|
test "$[2]" = conftest.file
|
||||||
|
)
|
||||||
|
then
|
||||||
|
# Ok.
|
||||||
|
:
|
||||||
|
else
|
||||||
|
AC_MSG_ERROR([newly created file is older than distributed files!
|
||||||
|
Check your system clock])
|
||||||
|
fi
|
||||||
|
AC_MSG_RESULT(yes)])
|
||||||
|
|
||||||
|
# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# AM_PROG_INSTALL_STRIP
|
||||||
|
# ---------------------
|
||||||
|
# One issue with vendor `install' (even GNU) is that you can't
|
||||||
|
# specify the program used to strip binaries. This is especially
|
||||||
|
# annoying in cross-compiling environments, where the build's strip
|
||||||
|
# is unlikely to handle the host's binaries.
|
||||||
|
# Fortunately install-sh will honor a STRIPPROG variable, so we
|
||||||
|
# always use install-sh in `make install-strip', and initialize
|
||||||
|
# STRIPPROG with the value of the STRIP variable (set by the user).
|
||||||
|
AC_DEFUN([AM_PROG_INSTALL_STRIP],
|
||||||
|
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
|
||||||
|
# Installed binaries are usually stripped using `strip' when the user
|
||||||
|
# run `make install-strip'. However `strip' might not be the right
|
||||||
|
# tool to use in cross-compilation environments, therefore Automake
|
||||||
|
# will honor the `STRIP' environment variable to overrule this program.
|
||||||
|
dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
|
||||||
|
if test "$cross_compiling" != no; then
|
||||||
|
AC_CHECK_TOOL([STRIP], [strip], :)
|
||||||
|
fi
|
||||||
|
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
|
||||||
|
AC_SUBST([INSTALL_STRIP_PROGRAM])])
|
||||||
|
|
||||||
|
# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 2
|
||||||
|
|
||||||
|
# _AM_SUBST_NOTMAKE(VARIABLE)
|
||||||
|
# ---------------------------
|
||||||
|
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
|
||||||
|
# This macro is traced by Automake.
|
||||||
|
AC_DEFUN([_AM_SUBST_NOTMAKE])
|
||||||
|
|
||||||
|
# AM_SUBST_NOTMAKE(VARIABLE)
|
||||||
|
# ---------------------------
|
||||||
|
# Public sister of _AM_SUBST_NOTMAKE.
|
||||||
|
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
|
||||||
|
|
||||||
|
# Check how to create a tarball. -*- Autoconf -*-
|
||||||
|
|
||||||
|
# Copyright (C) 2004, 2005 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# This file is free software; the Free Software Foundation
|
||||||
|
# gives unlimited permission to copy and/or distribute it,
|
||||||
|
# with or without modifications, as long as this notice is preserved.
|
||||||
|
|
||||||
|
# serial 2
|
||||||
|
|
||||||
|
# _AM_PROG_TAR(FORMAT)
|
||||||
|
# --------------------
|
||||||
|
# Check how to create a tarball in format FORMAT.
|
||||||
|
# FORMAT should be one of `v7', `ustar', or `pax'.
|
||||||
|
#
|
||||||
|
# Substitute a variable $(am__tar) that is a command
|
||||||
|
# writing to stdout a FORMAT-tarball containing the directory
|
||||||
|
# $tardir.
|
||||||
|
# tardir=directory && $(am__tar) > result.tar
|
||||||
|
#
|
||||||
|
# Substitute a variable $(am__untar) that extract such
|
||||||
|
# a tarball read from stdin.
|
||||||
|
# $(am__untar) < result.tar
|
||||||
|
AC_DEFUN([_AM_PROG_TAR],
|
||||||
|
[# Always define AMTAR for backward compatibility.
|
||||||
|
AM_MISSING_PROG([AMTAR], [tar])
|
||||||
|
m4_if([$1], [v7],
|
||||||
|
[am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
|
||||||
|
[m4_case([$1], [ustar],, [pax],,
|
||||||
|
[m4_fatal([Unknown tar format])])
|
||||||
|
AC_MSG_CHECKING([how to create a $1 tar archive])
|
||||||
|
# Loop over all known methods to create a tar archive until one works.
|
||||||
|
_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
|
||||||
|
_am_tools=${am_cv_prog_tar_$1-$_am_tools}
|
||||||
|
# Do not fold the above two line into one, because Tru64 sh and
|
||||||
|
# Solaris sh will not grok spaces in the rhs of `-'.
|
||||||
|
for _am_tool in $_am_tools
|
||||||
|
do
|
||||||
|
case $_am_tool in
|
||||||
|
gnutar)
|
||||||
|
for _am_tar in tar gnutar gtar;
|
||||||
|
do
|
||||||
|
AM_RUN_LOG([$_am_tar --version]) && break
|
||||||
|
done
|
||||||
|
am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
|
||||||
|
am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
|
||||||
|
am__untar="$_am_tar -xf -"
|
||||||
|
;;
|
||||||
|
plaintar)
|
||||||
|
# Must skip GNU tar: if it does not support --format= it doesn't create
|
||||||
|
# ustar tarball either.
|
||||||
|
(tar --version) >/dev/null 2>&1 && continue
|
||||||
|
am__tar='tar chf - "$$tardir"'
|
||||||
|
am__tar_='tar chf - "$tardir"'
|
||||||
|
am__untar='tar xf -'
|
||||||
|
;;
|
||||||
|
pax)
|
||||||
|
am__tar='pax -L -x $1 -w "$$tardir"'
|
||||||
|
am__tar_='pax -L -x $1 -w "$tardir"'
|
||||||
|
am__untar='pax -r'
|
||||||
|
;;
|
||||||
|
cpio)
|
||||||
|
am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
|
||||||
|
am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
|
||||||
|
am__untar='cpio -i -H $1 -d'
|
||||||
|
;;
|
||||||
|
none)
|
||||||
|
am__tar=false
|
||||||
|
am__tar_=false
|
||||||
|
am__untar=false
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# If the value was cached, stop now. We just wanted to have am__tar
|
||||||
|
# and am__untar set.
|
||||||
|
test -n "${am_cv_prog_tar_$1}" && break
|
||||||
|
|
||||||
|
# tar/untar a dummy directory, and stop if the command works
|
||||||
|
rm -rf conftest.dir
|
||||||
|
mkdir conftest.dir
|
||||||
|
echo GrepMe > conftest.dir/file
|
||||||
|
AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
|
||||||
|
rm -rf conftest.dir
|
||||||
|
if test -s conftest.tar; then
|
||||||
|
AM_RUN_LOG([$am__untar <conftest.tar])
|
||||||
|
grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
rm -rf conftest.dir
|
||||||
|
|
||||||
|
AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
|
||||||
|
AC_MSG_RESULT([$am_cv_prog_tar_$1])])
|
||||||
|
AC_SUBST([am__tar])
|
||||||
|
AC_SUBST([am__untar])
|
||||||
|
]) # _AM_PROG_TAR
|
||||||
|
|
||||||
631
addrmap.c
Normal file
631
addrmap.c
Normal file
|
|
@ -0,0 +1,631 @@
|
||||||
|
/*
|
||||||
|
* addrmap.c -- address mapping routines
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <tayga.h>
|
||||||
|
|
||||||
|
extern struct config *gcfg;
|
||||||
|
extern time_t now;
|
||||||
|
|
||||||
|
int validate_ip4_addr(const struct in_addr *a)
|
||||||
|
{
|
||||||
|
/* First octet == 0 */
|
||||||
|
if (!(a->s_addr & htonl(0xff000000)))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* First octet == 127 */
|
||||||
|
if ((a->s_addr & htonl(0xff000000)) == htonl(0x7f000000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Link-local block 169.254.0.0/16 */
|
||||||
|
if ((a->s_addr & htonl(0xffff0000)) == htonl(0xa9fe0000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Class D & E */
|
||||||
|
if ((a->s_addr & htonl(0xe0000000)) == htonl(0xe0000000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int validate_ip6_addr(const struct in6_addr *a)
|
||||||
|
{
|
||||||
|
/* Well-known prefix for NAT64 */
|
||||||
|
if (a->s6_addr32[0] == WKPF && !a->s6_addr32[1] && !a->s6_addr32[2])
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
/* Reserved per RFC 2373 */
|
||||||
|
if (!a->s6_addr[0])
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Multicast addresses */
|
||||||
|
if (a->s6_addr[0] == 0xff)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* Link-local unicast addresses */
|
||||||
|
if ((a->s6_addr16[0] & htons(0xffc0)) == htons(0xfe80))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int is_private_ip4_addr(const struct in_addr *a)
|
||||||
|
{
|
||||||
|
/* 10.0.0.0/8 */
|
||||||
|
if ((a->s_addr & htonl(0xff000000)) == htonl(0x0a000000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 172.16.0.0/12 */
|
||||||
|
if ((a->s_addr & htonl(0xfff00000)) == htonl(0xac100000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 192.0.2.0/24 */
|
||||||
|
if ((a->s_addr & htonl(0xffffff00)) == htonl(0xc0000200))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 192.168.0.0/16 */
|
||||||
|
if ((a->s_addr & htonl(0xffff0000)) == htonl(0xc0a80000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 198.18.0.0/15 */
|
||||||
|
if ((a->s_addr & htonl(0xfffe0000)) == htonl(0xc6120000))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 198.51.100.0/24 */
|
||||||
|
if ((a->s_addr & htonl(0xffffff00)) == htonl(0xc6336400))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
/* 203.0.113.0/24 */
|
||||||
|
if ((a->s_addr & htonl(0xffffff00)) == htonl(0xcb007100))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int calc_ip4_mask(struct in_addr *mask, const struct in_addr *addr, int len)
|
||||||
|
{
|
||||||
|
mask->s_addr = htonl(~((1 << (32 - len)) - 1));
|
||||||
|
if (addr && (addr->s_addr & ~mask->s_addr))
|
||||||
|
return -1;
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int calc_ip6_mask(struct in6_addr *mask, const struct in6_addr *addr, int len)
|
||||||
|
{
|
||||||
|
if (len > 32) {
|
||||||
|
mask->s6_addr32[0] = ~0;
|
||||||
|
if (len > 64) {
|
||||||
|
mask->s6_addr32[1] = ~0;
|
||||||
|
if (len > 96) {
|
||||||
|
mask->s6_addr32[2] = ~0;
|
||||||
|
mask->s6_addr32[3] =
|
||||||
|
htonl(~((1 << (128 - len)) - 1));
|
||||||
|
} else {
|
||||||
|
mask->s6_addr32[2] =
|
||||||
|
htonl(~((1 << (96 - len)) - 1));
|
||||||
|
mask->s6_addr32[3] = 0;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
mask->s6_addr32[1] = htonl(~((1 << (64 - len)) - 1));
|
||||||
|
mask->s6_addr32[2] = 0;
|
||||||
|
mask->s6_addr32[3] = 0;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
mask->s6_addr32[0] = htonl(~((1 << (32 - len)) - 1));
|
||||||
|
mask->s6_addr32[1] = 0;
|
||||||
|
mask->s6_addr32[2] = 0;
|
||||||
|
mask->s6_addr32[3] = 0;
|
||||||
|
}
|
||||||
|
if (!addr)
|
||||||
|
return 0;
|
||||||
|
if ((addr->s6_addr32[0] & ~mask->s6_addr32[0]) ||
|
||||||
|
(addr->s6_addr32[1] & ~mask->s6_addr32[1]) ||
|
||||||
|
(addr->s6_addr32[2] & ~mask->s6_addr32[2]) ||
|
||||||
|
(addr->s6_addr32[3] & ~mask->s6_addr32[3]))
|
||||||
|
return -1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t hash_ip4(const struct in_addr *addr4)
|
||||||
|
{
|
||||||
|
return ((uint32_t)(addr4->s_addr *
|
||||||
|
gcfg->rand[0])) >> (32 - gcfg->hash_bits);
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t hash_ip6(const struct in6_addr *addr6)
|
||||||
|
{
|
||||||
|
uint32_t h;
|
||||||
|
|
||||||
|
h = ((uint32_t)addr6->s6_addr16[0] + gcfg->rand[0]) *
|
||||||
|
((uint32_t)addr6->s6_addr16[1] + gcfg->rand[1]);
|
||||||
|
h ^= ((uint32_t)addr6->s6_addr16[2] + gcfg->rand[2]) *
|
||||||
|
((uint32_t)addr6->s6_addr16[3] + gcfg->rand[3]);
|
||||||
|
h ^= ((uint32_t)addr6->s6_addr16[4] + gcfg->rand[4]) *
|
||||||
|
((uint32_t)addr6->s6_addr16[5] + gcfg->rand[5]);
|
||||||
|
h ^= ((uint32_t)addr6->s6_addr16[6] + gcfg->rand[6]) *
|
||||||
|
((uint32_t)addr6->s6_addr16[7] + gcfg->rand[7]);
|
||||||
|
return h >> (32 - gcfg->hash_bits);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void add_to_hash_table(struct cache_entry *c, uint32_t hash4,
|
||||||
|
uint32_t hash6)
|
||||||
|
{
|
||||||
|
list_add(&c->hash4, &gcfg->hash_table4[hash4]);
|
||||||
|
list_add(&c->hash6, &gcfg->hash_table6[hash6]);
|
||||||
|
}
|
||||||
|
|
||||||
|
void create_cache(void)
|
||||||
|
{
|
||||||
|
int i, hash_size = 1 << gcfg->hash_bits;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct cache_entry *c;
|
||||||
|
|
||||||
|
if (gcfg->hash_table4) {
|
||||||
|
free(gcfg->hash_table4);
|
||||||
|
free(gcfg->hash_table6);
|
||||||
|
}
|
||||||
|
|
||||||
|
gcfg->hash_table4 = (struct list_head *)
|
||||||
|
malloc(hash_size * sizeof(struct list_head));
|
||||||
|
gcfg->hash_table6 = (struct list_head *)
|
||||||
|
malloc(hash_size * sizeof(struct list_head));
|
||||||
|
if (!gcfg->hash_table4 || !gcfg->hash_table6) {
|
||||||
|
slog(LOG_CRIT, "unable to allocate %d bytes for hash table\n",
|
||||||
|
hash_size * sizeof(struct list_head));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
for (i = 0; i < hash_size; ++i) {
|
||||||
|
INIT_LIST_HEAD(&gcfg->hash_table4[i]);
|
||||||
|
INIT_LIST_HEAD(&gcfg->hash_table6[i]);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (list_empty(&gcfg->cache_pool) && list_empty(&gcfg->cache_active)) {
|
||||||
|
c = calloc(gcfg->cache_size, sizeof(struct cache_entry));
|
||||||
|
for (i = 0; i < gcfg->cache_size; ++i) {
|
||||||
|
INIT_LIST_HEAD(&c->list);
|
||||||
|
INIT_LIST_HEAD(&c->hash4);
|
||||||
|
INIT_LIST_HEAD(&c->hash6);
|
||||||
|
list_add_tail(&c->list, &gcfg->cache_pool);
|
||||||
|
++c;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
list_for_each(entry, &gcfg->cache_active) {
|
||||||
|
c = list_entry(entry, struct cache_entry, list);
|
||||||
|
INIT_LIST_HEAD(&c->hash4);
|
||||||
|
INIT_LIST_HEAD(&c->hash6);
|
||||||
|
add_to_hash_table(c, hash_ip4(&c->addr4),
|
||||||
|
hash_ip6(&c->addr6));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct cache_entry *cache_insert(const struct in_addr *addr4,
|
||||||
|
const struct in6_addr *addr6,
|
||||||
|
uint32_t hash4, uint32_t hash6)
|
||||||
|
{
|
||||||
|
struct cache_entry *c;
|
||||||
|
|
||||||
|
if (list_empty(&gcfg->cache_pool))
|
||||||
|
return NULL;
|
||||||
|
c = list_entry(gcfg->cache_pool.next, struct cache_entry, list);
|
||||||
|
c->addr4 = *addr4;
|
||||||
|
c->addr6 = *addr6;
|
||||||
|
c->last_use = now;
|
||||||
|
c->flags = 0;
|
||||||
|
c->ip4_ident = 1;
|
||||||
|
list_add(&c->list, &gcfg->cache_active);
|
||||||
|
add_to_hash_table(c, hash4, hash6);
|
||||||
|
return c;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct map4 *find_map4(const struct in_addr *addr4)
|
||||||
|
{
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map4 *m;
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->map4_list) {
|
||||||
|
m = list_entry(entry, struct map4, list);
|
||||||
|
if (m->addr.s_addr == (m->mask.s_addr & addr4->s_addr))
|
||||||
|
return m;
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct map6 *find_map6(const struct in6_addr *addr6)
|
||||||
|
{
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map6 *m;
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->map6_list) {
|
||||||
|
m = list_entry(entry, struct map6, list);
|
||||||
|
if (IN6_IS_IN_NET(addr6, &m->addr, &m->mask))
|
||||||
|
return m;
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
int insert_map4(struct map4 *m, struct map4 **conflict)
|
||||||
|
{
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map4 *s;
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->map4_list) {
|
||||||
|
s = list_entry(entry, struct map4, list);
|
||||||
|
if (s->prefix_len < m->prefix_len)
|
||||||
|
break;
|
||||||
|
if (s->prefix_len == m->prefix_len &&
|
||||||
|
s->addr.s_addr == m->addr.s_addr)
|
||||||
|
goto conflict;
|
||||||
|
}
|
||||||
|
list_add_tail(&m->list, entry);
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
conflict:
|
||||||
|
if (conflict)
|
||||||
|
*conflict = s;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int insert_map6(struct map6 *m, struct map6 **conflict)
|
||||||
|
{
|
||||||
|
struct list_head *entry, *insert_pos = NULL;
|
||||||
|
struct map6 *s;
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->map6_list) {
|
||||||
|
s = list_entry(entry, struct map6, list);
|
||||||
|
if (s->prefix_len < m->prefix_len) {
|
||||||
|
if (IN6_IS_IN_NET(&m->addr, &s->addr, &s->mask))
|
||||||
|
goto conflict;
|
||||||
|
if (!insert_pos)
|
||||||
|
insert_pos = entry;
|
||||||
|
} else {
|
||||||
|
if (IN6_IS_IN_NET(&s->addr, &m->addr, &m->mask))
|
||||||
|
goto conflict;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
list_add_tail(&m->list, insert_pos ? insert_pos : &gcfg->map6_list);
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
conflict:
|
||||||
|
if (conflict)
|
||||||
|
*conflict = s;
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int append_to_prefix(struct in6_addr *addr6, const struct in_addr *addr4,
|
||||||
|
const struct in6_addr *prefix, int prefix_len)
|
||||||
|
{
|
||||||
|
switch (prefix_len) {
|
||||||
|
case 32:
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
addr6->s6_addr32[1] = addr4->s_addr;
|
||||||
|
addr6->s6_addr32[2] = 0;
|
||||||
|
addr6->s6_addr32[3] = 0;
|
||||||
|
return 0;
|
||||||
|
case 40:
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr >> 8);
|
||||||
|
addr6->s6_addr32[2] = (addr4->s_addr << 16) & 0x00ff0000;
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr << 8);
|
||||||
|
addr6->s6_addr32[2] = (addr4->s_addr >> 16) & 0x0000ff00;
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
addr6->s6_addr32[3] = 0;
|
||||||
|
return 0;
|
||||||
|
case 48:
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr >> 16);
|
||||||
|
addr6->s6_addr32[2] = (addr4->s_addr << 8) & 0x00ffff00;
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr << 16);
|
||||||
|
addr6->s6_addr32[2] = (addr4->s_addr >> 8) & 0x00ffff00;
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
addr6->s6_addr32[3] = 0;
|
||||||
|
return 0;
|
||||||
|
case 56:
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr >> 24);
|
||||||
|
addr6->s6_addr32[2] = addr4->s_addr & 0x00ffffff;
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1] |
|
||||||
|
(addr4->s_addr << 24);
|
||||||
|
addr6->s6_addr32[2] = addr4->s_addr & 0xffffff00;
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
addr6->s6_addr32[3] = 0;
|
||||||
|
return 0;
|
||||||
|
case 64:
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1];
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr6->s6_addr32[2] = addr4->s_addr >> 8;
|
||||||
|
addr6->s6_addr32[3] = addr4->s_addr << 24;
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr6->s6_addr32[2] = addr4->s_addr << 8;
|
||||||
|
addr6->s6_addr32[3] = addr4->s_addr >> 24;
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
return 0;
|
||||||
|
case 96:
|
||||||
|
if (prefix->s6_addr32[0] == WKPF &&
|
||||||
|
is_private_ip4_addr(addr4))
|
||||||
|
return -1;
|
||||||
|
addr6->s6_addr32[0] = prefix->s6_addr32[0];
|
||||||
|
addr6->s6_addr32[1] = prefix->s6_addr32[1];
|
||||||
|
addr6->s6_addr32[2] = prefix->s6_addr32[2];
|
||||||
|
addr6->s6_addr32[3] = addr4->s_addr;
|
||||||
|
return 0;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int map_ip4_to_ip6(struct in6_addr *addr6, const struct in_addr *addr4,
|
||||||
|
struct cache_entry **c_ptr)
|
||||||
|
{
|
||||||
|
uint32_t hash;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct cache_entry *c;
|
||||||
|
struct map4 *map4;
|
||||||
|
struct map_static *s;
|
||||||
|
struct map_dynamic *d = NULL;
|
||||||
|
|
||||||
|
if (gcfg->cache_size) {
|
||||||
|
hash = hash_ip4(addr4);
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->hash_table4[hash]) {
|
||||||
|
c = list_entry(entry, struct cache_entry, hash4);
|
||||||
|
if (addr4->s_addr == c->addr4.s_addr) {
|
||||||
|
*addr6 = c->addr6;
|
||||||
|
c->last_use = now;
|
||||||
|
if (c_ptr)
|
||||||
|
*c_ptr = c;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
map4 = find_map4(addr4);
|
||||||
|
|
||||||
|
if (!map4)
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
switch (map4->type) {
|
||||||
|
case MAP_TYPE_STATIC:
|
||||||
|
s = container_of(map4, struct map_static, map4);
|
||||||
|
*addr6 = s->map6.addr;
|
||||||
|
break;
|
||||||
|
case MAP_TYPE_RFC6052:
|
||||||
|
s = container_of(map4, struct map_static, map4);
|
||||||
|
if (append_to_prefix(addr6, addr4, &s->map6.addr,
|
||||||
|
s->map6.prefix_len) < 0)
|
||||||
|
return -1;
|
||||||
|
break;
|
||||||
|
case MAP_TYPE_DYNAMIC_POOL:
|
||||||
|
return -1;
|
||||||
|
case MAP_TYPE_DYNAMIC_HOST:
|
||||||
|
d = container_of(map4, struct map_dynamic, map4);
|
||||||
|
*addr6 = d->map6.addr;
|
||||||
|
d->last_use = now;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (gcfg->cache_size) {
|
||||||
|
c = cache_insert(addr4, addr6, hash, hash_ip6(addr6));
|
||||||
|
|
||||||
|
if (c_ptr)
|
||||||
|
*c_ptr = c;
|
||||||
|
if (d) {
|
||||||
|
d->cache_entry = c;
|
||||||
|
if (c)
|
||||||
|
c->flags |= CACHE_F_REP_AGEOUT;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int extract_from_prefix(struct in_addr *addr4,
|
||||||
|
const struct in6_addr *addr6, int prefix_len)
|
||||||
|
{
|
||||||
|
switch (prefix_len) {
|
||||||
|
case 32:
|
||||||
|
if (addr6->s6_addr32[2] || addr6->s6_addr32[3])
|
||||||
|
return -1;
|
||||||
|
addr4->s_addr = addr6->s6_addr32[1];
|
||||||
|
break;
|
||||||
|
case 40:
|
||||||
|
if (addr6->s6_addr32[2] & htonl(0xff00ffff) ||
|
||||||
|
addr6->s6_addr32[3])
|
||||||
|
return -1;
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr32[1] << 8) | addr6->s6_addr[9];
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr32[1] >> 8) |
|
||||||
|
(addr6->s6_addr32[2] << 16);
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
case 48:
|
||||||
|
if (addr6->s6_addr32[2] & htonl(0xff0000ff) ||
|
||||||
|
addr6->s6_addr32[3])
|
||||||
|
return -1;
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr16[3] << 16) |
|
||||||
|
(addr6->s6_addr32[2] >> 8);
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr4->s_addr = addr6->s6_addr16[3] |
|
||||||
|
(addr6->s6_addr32[2] << 8);
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
case 56:
|
||||||
|
if (addr6->s6_addr[8] || addr6->s6_addr32[3])
|
||||||
|
return -1;
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr[7] << 24) |
|
||||||
|
addr6->s6_addr32[2];
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr4->s_addr = addr6->s6_addr[7] |
|
||||||
|
addr6->s6_addr32[2];
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
case 64:
|
||||||
|
if (addr6->s6_addr[8] ||
|
||||||
|
addr6->s6_addr32[3] & htonl(0x00ffffff))
|
||||||
|
return -1;
|
||||||
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr32[2] << 8) |
|
||||||
|
addr6->s6_addr[12];
|
||||||
|
#else
|
||||||
|
# if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||||
|
addr4->s_addr = (addr6->s6_addr32[2] >> 8) |
|
||||||
|
(addr6->s6_addr32[3] << 24);
|
||||||
|
# endif
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
case 96:
|
||||||
|
addr4->s_addr = addr6->s6_addr32[3];
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
return validate_ip4_addr(addr4);
|
||||||
|
}
|
||||||
|
|
||||||
|
int map_ip6_to_ip4(struct in_addr *addr4, const struct in6_addr *addr6,
|
||||||
|
struct cache_entry **c_ptr, int dyn_alloc)
|
||||||
|
{
|
||||||
|
uint32_t hash;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct cache_entry *c;
|
||||||
|
struct map6 *map6;
|
||||||
|
struct map_static *s;
|
||||||
|
struct map_dynamic *d = NULL;
|
||||||
|
|
||||||
|
if (gcfg->cache_size) {
|
||||||
|
hash = hash_ip6(addr6);
|
||||||
|
|
||||||
|
list_for_each(entry, &gcfg->hash_table6[hash]) {
|
||||||
|
c = list_entry(entry, struct cache_entry, hash6);
|
||||||
|
if (IN6_ARE_ADDR_EQUAL(addr6, &c->addr6)) {
|
||||||
|
*addr4 = c->addr4;
|
||||||
|
c->last_use = now;
|
||||||
|
if (c_ptr)
|
||||||
|
*c_ptr = c;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
map6 = find_map6(addr6);
|
||||||
|
|
||||||
|
if (!map6) {
|
||||||
|
if (dyn_alloc)
|
||||||
|
map6 = assign_dynamic(addr6);
|
||||||
|
if (!map6)
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (map6->type) {
|
||||||
|
case MAP_TYPE_STATIC:
|
||||||
|
s = container_of(map6, struct map_static, map6);
|
||||||
|
*addr4 = s->map4.addr;
|
||||||
|
break;
|
||||||
|
case MAP_TYPE_RFC6052:
|
||||||
|
if (extract_from_prefix(addr4, addr6, map6->prefix_len) < 0)
|
||||||
|
return -1;
|
||||||
|
if (map6->addr.s6_addr32[0] == WKPF &&
|
||||||
|
is_private_ip4_addr(addr4))
|
||||||
|
return -1;
|
||||||
|
s = container_of(map6, struct map_static, map6);
|
||||||
|
if (find_map4(addr4) != &s->map4)
|
||||||
|
return -1;
|
||||||
|
break;
|
||||||
|
case MAP_TYPE_DYNAMIC_HOST:
|
||||||
|
d = container_of(map6, struct map_dynamic, map6);
|
||||||
|
*addr4 = d->map4.addr;
|
||||||
|
d->last_use = now;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (gcfg->cache_size) {
|
||||||
|
c = cache_insert(addr4, addr6, hash_ip4(addr4), hash);
|
||||||
|
|
||||||
|
if (c_ptr)
|
||||||
|
*c_ptr = c;
|
||||||
|
if (d) {
|
||||||
|
d->cache_entry = c;
|
||||||
|
if (c)
|
||||||
|
c->flags |= CACHE_F_REP_AGEOUT;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void report_ageout(struct cache_entry *c)
|
||||||
|
{
|
||||||
|
struct map4 *m4;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
|
||||||
|
m4 = find_map4(&c->addr4);
|
||||||
|
if (!m4 || m4->type != MAP_TYPE_DYNAMIC_HOST)
|
||||||
|
return;
|
||||||
|
d = container_of(m4, struct map_dynamic, map4);
|
||||||
|
d->last_use = c->last_use;
|
||||||
|
d->cache_entry = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
void addrmap_maint(void)
|
||||||
|
{
|
||||||
|
struct list_head *entry, *next;
|
||||||
|
struct cache_entry *c;
|
||||||
|
|
||||||
|
list_for_each_safe(entry, next, &gcfg->cache_active) {
|
||||||
|
c = list_entry(entry, struct cache_entry, list);
|
||||||
|
if (c->last_use + CACHE_MAX_AGE < now) {
|
||||||
|
if (c->flags & CACHE_F_REP_AGEOUT)
|
||||||
|
report_ageout(c);
|
||||||
|
list_add(&c->list, &gcfg->cache_pool);
|
||||||
|
list_del(&c->hash4);
|
||||||
|
list_del(&c->hash6);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
492
conffile.c
Normal file
492
conffile.c
Normal file
|
|
@ -0,0 +1,492 @@
|
||||||
|
/*
|
||||||
|
* conffile.c -- config file parser
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <tayga.h>
|
||||||
|
|
||||||
|
struct config *gcfg;
|
||||||
|
|
||||||
|
static int parse_prefix(int af, const char *src, void *prefix, int *prefix_len)
|
||||||
|
{
|
||||||
|
char *p, *end;
|
||||||
|
long int a;
|
||||||
|
int r;
|
||||||
|
|
||||||
|
p = strchr(src, '/');
|
||||||
|
if (!p)
|
||||||
|
return -1;
|
||||||
|
*p = 0;
|
||||||
|
a = strtol(p + 1, &end, 10);
|
||||||
|
r = *end || !inet_pton(af, src, prefix);
|
||||||
|
*p = '/';
|
||||||
|
if (r)
|
||||||
|
return -1;
|
||||||
|
if (a < 0 || a > (af == AF_INET6 ? 128 : 32))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
*prefix_len = a;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct map_static *alloc_map_static(int ln)
|
||||||
|
{
|
||||||
|
struct map_static *m;
|
||||||
|
|
||||||
|
m = (struct map_static *)malloc(sizeof(struct map_static));
|
||||||
|
if (!m) {
|
||||||
|
slog(LOG_CRIT, "Unable to allocate config memory\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
memset(m, 0, sizeof(struct map_static));
|
||||||
|
m->map4.type = MAP_TYPE_STATIC;
|
||||||
|
m->map4.prefix_len = 32;
|
||||||
|
calc_ip4_mask(&m->map4.mask, NULL, 32);
|
||||||
|
INIT_LIST_HEAD(&m->map4.list);
|
||||||
|
m->map6.type = MAP_TYPE_STATIC;
|
||||||
|
m->map6.prefix_len = 128;
|
||||||
|
calc_ip6_mask(&m->map6.mask, NULL, 128);
|
||||||
|
INIT_LIST_HEAD(&m->map6.list);
|
||||||
|
m->conffile_lineno = ln;
|
||||||
|
return m;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void abort_on_conflict4(char *msg, int ln, struct map4 *old)
|
||||||
|
{
|
||||||
|
char oldaddr[INET_ADDRSTRLEN];
|
||||||
|
char oldline[128] = "";
|
||||||
|
struct map_static *s;
|
||||||
|
|
||||||
|
if (old->type == MAP_TYPE_STATIC || old->type == MAP_TYPE_RFC6052) {
|
||||||
|
s = container_of(old, struct map_static, map4);
|
||||||
|
if (s->conffile_lineno)
|
||||||
|
sprintf(oldline, " from line %d", s->conffile_lineno);
|
||||||
|
}
|
||||||
|
|
||||||
|
inet_ntop(AF_INET, &old->addr, oldaddr, sizeof(oldaddr));
|
||||||
|
if (ln)
|
||||||
|
slog(LOG_CRIT, "%s on line %d conflicts with earlier "
|
||||||
|
"definition of %s/%d%s\n", msg, ln,
|
||||||
|
oldaddr, old->prefix_len, oldline);
|
||||||
|
else
|
||||||
|
slog(LOG_CRIT, "%s conflicts with earlier "
|
||||||
|
"definition of %s/%d%s\n", msg,
|
||||||
|
oldaddr, old->prefix_len, oldline);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void abort_on_conflict6(char *msg, int ln, struct map6 *old)
|
||||||
|
{
|
||||||
|
char oldaddr[INET6_ADDRSTRLEN];
|
||||||
|
char oldline[128] = "";
|
||||||
|
struct map_static *s;
|
||||||
|
|
||||||
|
if (old->type == MAP_TYPE_STATIC || old->type == MAP_TYPE_RFC6052) {
|
||||||
|
s = container_of(old, struct map_static, map6);
|
||||||
|
if (s->conffile_lineno)
|
||||||
|
sprintf(oldline, " from line %d", s->conffile_lineno);
|
||||||
|
}
|
||||||
|
|
||||||
|
inet_ntop(AF_INET6, &old->addr, oldaddr, sizeof(oldaddr));
|
||||||
|
if (ln)
|
||||||
|
slog(LOG_CRIT, "%s on line %d overlaps with earlier "
|
||||||
|
"definition of %s/%d%s\n", msg, ln,
|
||||||
|
oldaddr, old->prefix_len, oldline);
|
||||||
|
else
|
||||||
|
slog(LOG_CRIT, "%s overlaps with earlier "
|
||||||
|
"definition of %s/%d%s\n", msg,
|
||||||
|
oldaddr, old->prefix_len, oldline);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_ipv4_addr(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
if (gcfg->local_addr4.s_addr) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate ipv4-addr directive on "
|
||||||
|
"line %d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (!inet_pton(AF_INET, args[0], &gcfg->local_addr4)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv4 address but found \"%s\" on "
|
||||||
|
"line %d\n", args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip4_addr(&gcfg->local_addr4) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in ipv4-addr "
|
||||||
|
"directive, aborting...\n", args[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_ipv6_addr(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
if (gcfg->local_addr6.s6_addr[0]) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate ipv6-addr directive on line "
|
||||||
|
"%d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (!inet_pton(AF_INET6, args[0], &gcfg->local_addr6)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv6 address but found \"%s\" on "
|
||||||
|
"line %d\n", args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip6_addr(&gcfg->local_addr6) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in ipv6-addr "
|
||||||
|
"directive, aborting...\n", args[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (gcfg->local_addr6.s6_addr32[0] == WKPF) {
|
||||||
|
slog(LOG_CRIT, "Error: ipv6-addr directive cannot contain an "
|
||||||
|
"address in the Well-Known Prefix "
|
||||||
|
"(64:ff9b::/96)\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_prefix(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
struct map_static *m;
|
||||||
|
struct map6 *m6;
|
||||||
|
|
||||||
|
m = alloc_map_static(ln);
|
||||||
|
m->map4.prefix_len = 0;
|
||||||
|
m->map4.mask.s_addr = 0;
|
||||||
|
m->map4.type = MAP_TYPE_RFC6052;
|
||||||
|
m->map6.type = MAP_TYPE_RFC6052;
|
||||||
|
m6 = &m->map6;
|
||||||
|
|
||||||
|
if (parse_prefix(AF_INET6, args[0], &m6->addr, &m6->prefix_len) ||
|
||||||
|
calc_ip6_mask(&m6->mask, &m6->addr, m6->prefix_len)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv6 prefix but found \"%s\" on "
|
||||||
|
"line %d\n", args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip6_addr(&m6->addr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in prefix "
|
||||||
|
"directive, aborting...\n", args[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (m6->prefix_len != 32 && m6->prefix_len != 40 &&
|
||||||
|
m6->prefix_len != 48 && m6->prefix_len != 56 &&
|
||||||
|
m6->prefix_len != 64 && m6->prefix_len != 96) {
|
||||||
|
slog(LOG_CRIT, "NAT prefix length must be 32, 40, 48, 56, 64 "
|
||||||
|
"or 96 only, aborting...\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (insert_map4(&m->map4, NULL) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate prefix directive on line %d\n",
|
||||||
|
ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (insert_map6(&m->map6, &m6) < 0)
|
||||||
|
abort_on_conflict6("Error: NAT64 prefix", ln, m6);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_tun_device(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
if (gcfg->tundev[0]) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate tun-device directive on line "
|
||||||
|
"%d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (strlen(args[0]) + 1 > sizeof(gcfg->tundev)) {
|
||||||
|
slog(LOG_CRIT, "Device name \"%s\" is invalid on line %d\n",
|
||||||
|
args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
strcpy(gcfg->tundev, args[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_map(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
struct map_static *m;
|
||||||
|
struct map4 *m4;
|
||||||
|
struct map6 *m6;
|
||||||
|
|
||||||
|
m = alloc_map_static(ln);
|
||||||
|
|
||||||
|
if (!inet_pton(AF_INET, args[0], &m->map4.addr)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv4 address but found \"%s\" on "
|
||||||
|
"line %d\n", args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (!inet_pton(AF_INET6, args[1], &m->map6.addr)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv6 address but found \"%s\" on "
|
||||||
|
"line %d\n", args[1], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip4_addr(&m->map4.addr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in map "
|
||||||
|
"directive, aborting...\n", args[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip6_addr(&m->map6.addr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in map "
|
||||||
|
"directive, aborting...\n", args[1]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (m->map6.addr.s6_addr32[0] == WKPF) {
|
||||||
|
slog(LOG_CRIT, "Cannot create single-host maps inside "
|
||||||
|
"64:ff9b::/96, aborting...\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (insert_map4(&m->map4, &m4) < 0)
|
||||||
|
abort_on_conflict4("Error: IPv4 address in map directive",
|
||||||
|
ln, m4);
|
||||||
|
if (insert_map6(&m->map6, &m6) < 0)
|
||||||
|
abort_on_conflict6("Error: IPv6 address in map directive",
|
||||||
|
ln, m6);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_dynamic_pool(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
struct dynamic_pool *pool;
|
||||||
|
struct map4 *m4;
|
||||||
|
|
||||||
|
if (gcfg->dynamic_pool) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate dynamic-pool directive on "
|
||||||
|
"line %d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
pool = (struct dynamic_pool *)malloc(sizeof(struct dynamic_pool));
|
||||||
|
if (!pool) {
|
||||||
|
slog(LOG_CRIT, "Unable to allocate config memory\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
memset(pool, 0, sizeof(struct dynamic_pool));
|
||||||
|
INIT_LIST_HEAD(&pool->mapped_list);
|
||||||
|
INIT_LIST_HEAD(&pool->dormant_list);
|
||||||
|
INIT_LIST_HEAD(&pool->free_list);
|
||||||
|
|
||||||
|
m4 = &pool->map4;
|
||||||
|
m4->type = MAP_TYPE_DYNAMIC_POOL;
|
||||||
|
INIT_LIST_HEAD(&m4->list);
|
||||||
|
|
||||||
|
if (parse_prefix(AF_INET, args[0], &m4->addr, &m4->prefix_len) ||
|
||||||
|
calc_ip4_mask(&m4->mask, &m4->addr, m4->prefix_len)) {
|
||||||
|
slog(LOG_CRIT, "Expected an IPv4 prefix but found \"%s\" on "
|
||||||
|
"line %d\n", args[0], ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (validate_ip4_addr(&m4->addr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Cannot use reserved address %s in dynamic-pool "
|
||||||
|
"directive, aborting...\n", args[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (m4->prefix_len > 31) {
|
||||||
|
slog(LOG_CRIT, "Cannot use a prefix longer than /31 in "
|
||||||
|
"dynamic-pool directive, aborting...\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (insert_map4(&pool->map4, &m4) < 0)
|
||||||
|
abort_on_conflict4("Error: IPv4 prefix in dynamic-pool "
|
||||||
|
"directive", ln, m4);
|
||||||
|
|
||||||
|
pool->free_head.addr = ntohl(m4->addr.s_addr);
|
||||||
|
pool->free_head.count = (1 << (32 - m4->prefix_len)) - 1;
|
||||||
|
INIT_LIST_HEAD(&pool->free_head.list);
|
||||||
|
list_add(&pool->free_head.list, &pool->free_list);
|
||||||
|
|
||||||
|
gcfg->dynamic_pool = pool;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_data_dir(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
if (gcfg->data_dir[0]) {
|
||||||
|
slog(LOG_CRIT, "Error: duplicate data-dir directive on line "
|
||||||
|
"%d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (args[0][0] != '/') {
|
||||||
|
slog(LOG_CRIT, "Error: data-dir must be an absolute path\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
strcpy(gcfg->data_dir, args[0]);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void config_strict_fh(int ln, int arg_count, char **args)
|
||||||
|
{
|
||||||
|
if (!strcasecmp(args[0], "true") || !strcasecmp(args[0], "on") ||
|
||||||
|
!strcasecmp(args[0], "1")) {
|
||||||
|
gcfg->lazy_frag_hdr = 0;
|
||||||
|
} else if (!strcasecmp(args[0], "false") ||
|
||||||
|
!strcasecmp(args[0], "off") ||
|
||||||
|
!strcasecmp(args[0], "0")) {
|
||||||
|
gcfg->lazy_frag_hdr = 1;
|
||||||
|
} else {
|
||||||
|
slog(LOG_CRIT, "Error: invalid value for strict-frag-hdr\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
struct {
|
||||||
|
char *name;
|
||||||
|
void (*config_func)(int ln, int arg_count, char **args);
|
||||||
|
int need_args;
|
||||||
|
} config_directives[] = {
|
||||||
|
{ "ipv4-addr", config_ipv4_addr, 1 },
|
||||||
|
{ "ipv6-addr", config_ipv6_addr, 1 },
|
||||||
|
{ "prefix", config_prefix, 1 },
|
||||||
|
{ "tun-device", config_tun_device, 1 },
|
||||||
|
{ "map", config_map, 2 },
|
||||||
|
{ "dynamic-pool", config_dynamic_pool, 1 },
|
||||||
|
{ "data-dir", config_data_dir, 1 },
|
||||||
|
{ "strict-frag-hdr", config_strict_fh, 1 },
|
||||||
|
{ NULL, NULL, 0 }
|
||||||
|
};
|
||||||
|
|
||||||
|
void read_config(char *conffile)
|
||||||
|
{
|
||||||
|
FILE *in;
|
||||||
|
int ln = 0;
|
||||||
|
char line[512];
|
||||||
|
char addrbuf[128];
|
||||||
|
char *c, *tokptr;
|
||||||
|
#define MAX_ARGS 10
|
||||||
|
char *args[MAX_ARGS];
|
||||||
|
int arg_count;
|
||||||
|
int i;
|
||||||
|
struct map_static *m;
|
||||||
|
struct map4 *m4;
|
||||||
|
struct map6 *m6;
|
||||||
|
|
||||||
|
gcfg = (struct config *)malloc(sizeof(struct config));
|
||||||
|
if (!gcfg)
|
||||||
|
goto malloc_fail;
|
||||||
|
memset(gcfg, 0, sizeof(struct config));
|
||||||
|
gcfg->recv_buf_size = 65536 + sizeof(struct tun_pi);
|
||||||
|
INIT_LIST_HEAD(&gcfg->map4_list);
|
||||||
|
INIT_LIST_HEAD(&gcfg->map6_list);
|
||||||
|
gcfg->dyn_min_lease = 7200 + 4 * 60; /* just over two hours */
|
||||||
|
gcfg->dyn_max_lease = 14 * 86400;
|
||||||
|
gcfg->max_commit_delay = gcfg->dyn_max_lease / 4;
|
||||||
|
gcfg->hash_bits = 7;
|
||||||
|
gcfg->cache_size = 8192;
|
||||||
|
gcfg->allow_ident_gen = 1;
|
||||||
|
gcfg->ipv6_offlink_mtu = 1280;
|
||||||
|
gcfg->lazy_frag_hdr = 1;
|
||||||
|
INIT_LIST_HEAD(&gcfg->cache_pool);
|
||||||
|
INIT_LIST_HEAD(&gcfg->cache_active);
|
||||||
|
|
||||||
|
in = fopen(conffile, "r");
|
||||||
|
if (!in) {
|
||||||
|
slog(LOG_CRIT, "unable to open %s, aborting: %s\n", conffile,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
while (fgets(line, sizeof(line), in)) {
|
||||||
|
++ln;
|
||||||
|
if (strlen(line) + 1 == sizeof(line)) {
|
||||||
|
slog(LOG_CRIT, "Line %d of %s is too long, "
|
||||||
|
"aborting...\n", ln, conffile);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
arg_count = 0;
|
||||||
|
for (;;) {
|
||||||
|
c = strtok_r(arg_count ? NULL : line, DELIM, &tokptr);
|
||||||
|
if (!c || *c == '#')
|
||||||
|
break;
|
||||||
|
if (arg_count == MAX_ARGS) {
|
||||||
|
slog(LOG_CRIT, "Line %d of %s is too long, "
|
||||||
|
"aborting...\n", ln, conffile);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
args[arg_count++] = c;
|
||||||
|
}
|
||||||
|
if (arg_count == 0)
|
||||||
|
continue;
|
||||||
|
for (i = 0; config_directives[i].name; ++i)
|
||||||
|
if (!strcasecmp(args[0], config_directives[i].name))
|
||||||
|
break;
|
||||||
|
if (!config_directives[i].name) {
|
||||||
|
slog(LOG_CRIT, "Unknown directive \"%s\" on line %d of "
|
||||||
|
"%s, aborting...\n", args[0],
|
||||||
|
ln, conffile);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
--arg_count;
|
||||||
|
if (config_directives[i].need_args >= 0 &&
|
||||||
|
arg_count != config_directives[i].need_args) {
|
||||||
|
slog(LOG_CRIT, "Incorrect number of arguments on "
|
||||||
|
"line %d\n", ln);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
config_directives[i].config_func(ln, arg_count, &args[1]);
|
||||||
|
}
|
||||||
|
fclose(in);
|
||||||
|
|
||||||
|
if (list_empty(&gcfg->map6_list)) {
|
||||||
|
slog(LOG_CRIT, "Error: no translation maps or NAT64 prefix "
|
||||||
|
"configured\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
m4 = list_entry(gcfg->map4_list.next, struct map4, list);
|
||||||
|
m6 = list_entry(gcfg->map6_list.next, struct map6, list);
|
||||||
|
|
||||||
|
if (m4->type == MAP_TYPE_RFC6052 && m6->type == MAP_TYPE_RFC6052 &&
|
||||||
|
!gcfg->allow_ident_gen)
|
||||||
|
gcfg->cache_size = 0;
|
||||||
|
|
||||||
|
if (!gcfg->local_addr4.s_addr) {
|
||||||
|
slog(LOG_CRIT, "Error: no ipv4-addr directive found\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
m = alloc_map_static(0);
|
||||||
|
m->map4.addr = gcfg->local_addr4;
|
||||||
|
if (insert_map4(&m->map4, &m4) < 0)
|
||||||
|
abort_on_conflict4("Error: ipv4-addr", 0, m4);
|
||||||
|
|
||||||
|
if (gcfg->local_addr6.s6_addr32[0]) {
|
||||||
|
m->map6.addr = gcfg->local_addr6;
|
||||||
|
if (insert_map6(&m->map6, &m6) < 0) {
|
||||||
|
if (m6->type == MAP_TYPE_RFC6052) {
|
||||||
|
inet_ntop(AF_INET6, &m6->addr,
|
||||||
|
addrbuf, sizeof(addrbuf));
|
||||||
|
slog(LOG_CRIT, "Error: ipv6-addr cannot reside "
|
||||||
|
"within configured prefix "
|
||||||
|
"%s/%d\n", addrbuf,
|
||||||
|
m6->prefix_len);
|
||||||
|
exit(1);
|
||||||
|
} else {
|
||||||
|
abort_on_conflict6("Error: ipv6-addr", 0, m6);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
m6 = list_entry(gcfg->map6_list.prev, struct map6, list);
|
||||||
|
if (m6->type != MAP_TYPE_RFC6052) {
|
||||||
|
slog(LOG_CRIT, "Error: ipv6-addr directive must be "
|
||||||
|
"specified if no NAT64 prefix is "
|
||||||
|
"configured\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (append_to_prefix(&gcfg->local_addr6, &gcfg->local_addr4,
|
||||||
|
&m6->addr, m6->prefix_len)) {
|
||||||
|
slog(LOG_CRIT, "Error: ipv6-addr directive must be "
|
||||||
|
"specified if prefix is 64:ff9b::/96 "
|
||||||
|
"and ipv4-addr is a non-global "
|
||||||
|
"(RFC 1918) address\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
m->map6.addr = gcfg->local_addr6;
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
|
||||||
|
malloc_fail:
|
||||||
|
slog(LOG_CRIT, "Unable to allocate config memory\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
25
config.h.in
Normal file
25
config.h.in
Normal file
|
|
@ -0,0 +1,25 @@
|
||||||
|
/* config.h.in. Generated from configure.ac by autoheader. */
|
||||||
|
|
||||||
|
/* Name of package */
|
||||||
|
#undef PACKAGE
|
||||||
|
|
||||||
|
/* Define to the address where bug reports for this package should be sent. */
|
||||||
|
#undef PACKAGE_BUGREPORT
|
||||||
|
|
||||||
|
/* Define to the full name of this package. */
|
||||||
|
#undef PACKAGE_NAME
|
||||||
|
|
||||||
|
/* Define to the full name and version of this package. */
|
||||||
|
#undef PACKAGE_STRING
|
||||||
|
|
||||||
|
/* Define to the one symbol short name of this package. */
|
||||||
|
#undef PACKAGE_TARNAME
|
||||||
|
|
||||||
|
/* Define to the home page for this package. */
|
||||||
|
#undef PACKAGE_URL
|
||||||
|
|
||||||
|
/* Define to the version of this package. */
|
||||||
|
#undef PACKAGE_VERSION
|
||||||
|
|
||||||
|
/* Version number of package */
|
||||||
|
#undef VERSION
|
||||||
14
configure.ac
Normal file
14
configure.ac
Normal file
|
|
@ -0,0 +1,14 @@
|
||||||
|
AC_INIT(tayga, 0.9.2)
|
||||||
|
AC_CONFIG_SRCDIR(nat64.c)
|
||||||
|
AM_INIT_AUTOMAKE([foreign dist-bzip2])
|
||||||
|
AC_CONFIG_HEADERS(config.h)
|
||||||
|
|
||||||
|
AC_PROG_CC
|
||||||
|
|
||||||
|
CFLAGS='-g -Wall'
|
||||||
|
|
||||||
|
tayga_conf_path=${sysconfdir}/tayga.conf
|
||||||
|
|
||||||
|
AC_SUBST(tayga_conf_path)
|
||||||
|
|
||||||
|
AC_OUTPUT([Makefile])
|
||||||
630
depcomp
Executable file
630
depcomp
Executable file
|
|
@ -0,0 +1,630 @@
|
||||||
|
#! /bin/sh
|
||||||
|
# depcomp - compile a program generating dependencies as side-effects
|
||||||
|
|
||||||
|
scriptversion=2009-04-28.21; # UTC
|
||||||
|
|
||||||
|
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
|
||||||
|
# Software Foundation, Inc.
|
||||||
|
|
||||||
|
# This program is free software; you can redistribute it and/or modify
|
||||||
|
# it under the terms of the GNU General Public License as published by
|
||||||
|
# the Free Software Foundation; either version 2, or (at your option)
|
||||||
|
# any later version.
|
||||||
|
|
||||||
|
# This program is distributed in the hope that it will be useful,
|
||||||
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
# GNU General Public License for more details.
|
||||||
|
|
||||||
|
# You should have received a copy of the GNU General Public License
|
||||||
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
# As a special exception to the GNU General Public License, if you
|
||||||
|
# distribute this file as part of a program that contains a
|
||||||
|
# configuration script generated by Autoconf, you may include it under
|
||||||
|
# the same distribution terms that you use for the rest of that program.
|
||||||
|
|
||||||
|
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
|
||||||
|
|
||||||
|
case $1 in
|
||||||
|
'')
|
||||||
|
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
|
||||||
|
exit 1;
|
||||||
|
;;
|
||||||
|
-h | --h*)
|
||||||
|
cat <<\EOF
|
||||||
|
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
|
||||||
|
|
||||||
|
Run PROGRAMS ARGS to compile a file, generating dependencies
|
||||||
|
as side-effects.
|
||||||
|
|
||||||
|
Environment variables:
|
||||||
|
depmode Dependency tracking mode.
|
||||||
|
source Source file read by `PROGRAMS ARGS'.
|
||||||
|
object Object file output by `PROGRAMS ARGS'.
|
||||||
|
DEPDIR directory where to store dependencies.
|
||||||
|
depfile Dependency file to output.
|
||||||
|
tmpdepfile Temporary file to use when outputing dependencies.
|
||||||
|
libtool Whether libtool is used (yes/no).
|
||||||
|
|
||||||
|
Report bugs to <bug-automake@gnu.org>.
|
||||||
|
EOF
|
||||||
|
exit $?
|
||||||
|
;;
|
||||||
|
-v | --v*)
|
||||||
|
echo "depcomp $scriptversion"
|
||||||
|
exit $?
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
|
||||||
|
echo "depcomp: Variables source, object and depmode must be set" 1>&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
|
||||||
|
depfile=${depfile-`echo "$object" |
|
||||||
|
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
|
||||||
|
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
|
||||||
|
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
|
||||||
|
# Some modes work just like other modes, but use different flags. We
|
||||||
|
# parameterize here, but still list the modes in the big case below,
|
||||||
|
# to make depend.m4 easier to write. Note that we *cannot* use a case
|
||||||
|
# here, because this file can only contain one case statement.
|
||||||
|
if test "$depmode" = hp; then
|
||||||
|
# HP compiler uses -M and no extra arg.
|
||||||
|
gccflag=-M
|
||||||
|
depmode=gcc
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test "$depmode" = dashXmstdout; then
|
||||||
|
# This is just like dashmstdout with a different argument.
|
||||||
|
dashmflag=-xM
|
||||||
|
depmode=dashmstdout
|
||||||
|
fi
|
||||||
|
|
||||||
|
cygpath_u="cygpath -u -f -"
|
||||||
|
if test "$depmode" = msvcmsys; then
|
||||||
|
# This is just like msvisualcpp but w/o cygpath translation.
|
||||||
|
# Just convert the backslash-escaped backslashes to single forward
|
||||||
|
# slashes to satisfy depend.m4
|
||||||
|
cygpath_u="sed s,\\\\\\\\,/,g"
|
||||||
|
depmode=msvisualcpp
|
||||||
|
fi
|
||||||
|
|
||||||
|
case "$depmode" in
|
||||||
|
gcc3)
|
||||||
|
## gcc 3 implements dependency tracking that does exactly what
|
||||||
|
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
|
||||||
|
## it if -MD -MP comes after the -MF stuff. Hmm.
|
||||||
|
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
|
||||||
|
## the command line argument order; so add the flags where they
|
||||||
|
## appear in depend2.am. Note that the slowdown incurred here
|
||||||
|
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
case $arg in
|
||||||
|
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
|
||||||
|
*) set fnord "$@" "$arg" ;;
|
||||||
|
esac
|
||||||
|
shift # fnord
|
||||||
|
shift # $arg
|
||||||
|
done
|
||||||
|
"$@"
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
mv "$tmpdepfile" "$depfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
gcc)
|
||||||
|
## There are various ways to get dependency output from gcc. Here's
|
||||||
|
## why we pick this rather obscure method:
|
||||||
|
## - Don't want to use -MD because we'd like the dependencies to end
|
||||||
|
## up in a subdir. Having to rename by hand is ugly.
|
||||||
|
## (We might end up doing this anyway to support other compilers.)
|
||||||
|
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
|
||||||
|
## -MM, not -M (despite what the docs say).
|
||||||
|
## - Using -M directly means running the compiler twice (even worse
|
||||||
|
## than renaming).
|
||||||
|
if test -z "$gccflag"; then
|
||||||
|
gccflag=-MD,
|
||||||
|
fi
|
||||||
|
"$@" -Wp,"$gccflag$tmpdepfile"
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
rm -f "$depfile"
|
||||||
|
echo "$object : \\" > "$depfile"
|
||||||
|
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
|
||||||
|
## The second -e expression handles DOS-style file names with drive letters.
|
||||||
|
sed -e 's/^[^:]*: / /' \
|
||||||
|
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
|
||||||
|
## This next piece of magic avoids the `deleted header file' problem.
|
||||||
|
## The problem is that when a header file which appears in a .P file
|
||||||
|
## is deleted, the dependency causes make to die (because there is
|
||||||
|
## typically no way to rebuild the header). We avoid this by adding
|
||||||
|
## dummy dependencies for each header file. Too bad gcc doesn't do
|
||||||
|
## this for us directly.
|
||||||
|
tr ' ' '
|
||||||
|
' < "$tmpdepfile" |
|
||||||
|
## Some versions of gcc put a space before the `:'. On the theory
|
||||||
|
## that the space means something, we add a space to the output as
|
||||||
|
## well.
|
||||||
|
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||||
|
## correctly. Breaking it into two sed invocations is a workaround.
|
||||||
|
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
hp)
|
||||||
|
# This case exists only to let depend.m4 do its work. It works by
|
||||||
|
# looking at the text of this script. This case will never be run,
|
||||||
|
# since it is checked for above.
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
|
||||||
|
sgi)
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
"$@" "-Wp,-MDupdate,$tmpdepfile"
|
||||||
|
else
|
||||||
|
"$@" -MDupdate "$tmpdepfile"
|
||||||
|
fi
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
rm -f "$depfile"
|
||||||
|
|
||||||
|
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
|
||||||
|
echo "$object : \\" > "$depfile"
|
||||||
|
|
||||||
|
# Clip off the initial element (the dependent). Don't try to be
|
||||||
|
# clever and replace this with sed code, as IRIX sed won't handle
|
||||||
|
# lines with more than a fixed number of characters (4096 in
|
||||||
|
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
|
||||||
|
# the IRIX cc adds comments like `#:fec' to the end of the
|
||||||
|
# dependency line.
|
||||||
|
tr ' ' '
|
||||||
|
' < "$tmpdepfile" \
|
||||||
|
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
|
||||||
|
tr '
|
||||||
|
' ' ' >> "$depfile"
|
||||||
|
echo >> "$depfile"
|
||||||
|
|
||||||
|
# The second pass generates a dummy entry for each header file.
|
||||||
|
tr ' ' '
|
||||||
|
' < "$tmpdepfile" \
|
||||||
|
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
|
||||||
|
>> "$depfile"
|
||||||
|
else
|
||||||
|
# The sourcefile does not contain any dependencies, so just
|
||||||
|
# store a dummy comment line, to avoid errors with the Makefile
|
||||||
|
# "include basename.Plo" scheme.
|
||||||
|
echo "#dummy" > "$depfile"
|
||||||
|
fi
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
aix)
|
||||||
|
# The C for AIX Compiler uses -M and outputs the dependencies
|
||||||
|
# in a .u file. In older versions, this file always lives in the
|
||||||
|
# current directory. Also, the AIX compiler puts `$object:' at the
|
||||||
|
# start of each line; $object doesn't have directory information.
|
||||||
|
# Version 6 uses the directory in both cases.
|
||||||
|
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
|
||||||
|
test "x$dir" = "x$object" && dir=
|
||||||
|
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
tmpdepfile1=$dir$base.u
|
||||||
|
tmpdepfile2=$base.u
|
||||||
|
tmpdepfile3=$dir.libs/$base.u
|
||||||
|
"$@" -Wc,-M
|
||||||
|
else
|
||||||
|
tmpdepfile1=$dir$base.u
|
||||||
|
tmpdepfile2=$dir$base.u
|
||||||
|
tmpdepfile3=$dir$base.u
|
||||||
|
"$@" -M
|
||||||
|
fi
|
||||||
|
stat=$?
|
||||||
|
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
|
||||||
|
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
|
||||||
|
do
|
||||||
|
test -f "$tmpdepfile" && break
|
||||||
|
done
|
||||||
|
if test -f "$tmpdepfile"; then
|
||||||
|
# Each line is of the form `foo.o: dependent.h'.
|
||||||
|
# Do two passes, one to just change these to
|
||||||
|
# `$object: dependent.h' and one to simply `dependent.h:'.
|
||||||
|
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
|
||||||
|
# That's a tab and a space in the [].
|
||||||
|
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
|
||||||
|
else
|
||||||
|
# The sourcefile does not contain any dependencies, so just
|
||||||
|
# store a dummy comment line, to avoid errors with the Makefile
|
||||||
|
# "include basename.Plo" scheme.
|
||||||
|
echo "#dummy" > "$depfile"
|
||||||
|
fi
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
icc)
|
||||||
|
# Intel's C compiler understands `-MD -MF file'. However on
|
||||||
|
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
|
||||||
|
# ICC 7.0 will fill foo.d with something like
|
||||||
|
# foo.o: sub/foo.c
|
||||||
|
# foo.o: sub/foo.h
|
||||||
|
# which is wrong. We want:
|
||||||
|
# sub/foo.o: sub/foo.c
|
||||||
|
# sub/foo.o: sub/foo.h
|
||||||
|
# sub/foo.c:
|
||||||
|
# sub/foo.h:
|
||||||
|
# ICC 7.1 will output
|
||||||
|
# foo.o: sub/foo.c sub/foo.h
|
||||||
|
# and will wrap long lines using \ :
|
||||||
|
# foo.o: sub/foo.c ... \
|
||||||
|
# sub/foo.h ... \
|
||||||
|
# ...
|
||||||
|
|
||||||
|
"$@" -MD -MF "$tmpdepfile"
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
rm -f "$depfile"
|
||||||
|
# Each line is of the form `foo.o: dependent.h',
|
||||||
|
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
|
||||||
|
# Do two passes, one to just change these to
|
||||||
|
# `$object: dependent.h' and one to simply `dependent.h:'.
|
||||||
|
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
|
||||||
|
# Some versions of the HPUX 10.20 sed can't process this invocation
|
||||||
|
# correctly. Breaking it into two sed invocations is a workaround.
|
||||||
|
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
|
||||||
|
sed -e 's/$/ :/' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
hp2)
|
||||||
|
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
|
||||||
|
# compilers, which have integrated preprocessors. The correct option
|
||||||
|
# to use with these is +Maked; it writes dependencies to a file named
|
||||||
|
# 'foo.d', which lands next to the object file, wherever that
|
||||||
|
# happens to be.
|
||||||
|
# Much of this is similar to the tru64 case; see comments there.
|
||||||
|
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
|
||||||
|
test "x$dir" = "x$object" && dir=
|
||||||
|
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
tmpdepfile1=$dir$base.d
|
||||||
|
tmpdepfile2=$dir.libs/$base.d
|
||||||
|
"$@" -Wc,+Maked
|
||||||
|
else
|
||||||
|
tmpdepfile1=$dir$base.d
|
||||||
|
tmpdepfile2=$dir$base.d
|
||||||
|
"$@" +Maked
|
||||||
|
fi
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile1" "$tmpdepfile2"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
|
||||||
|
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
|
||||||
|
do
|
||||||
|
test -f "$tmpdepfile" && break
|
||||||
|
done
|
||||||
|
if test -f "$tmpdepfile"; then
|
||||||
|
sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
|
||||||
|
# Add `dependent.h:' lines.
|
||||||
|
sed -ne '2,${
|
||||||
|
s/^ *//
|
||||||
|
s/ \\*$//
|
||||||
|
s/$/:/
|
||||||
|
p
|
||||||
|
}' "$tmpdepfile" >> "$depfile"
|
||||||
|
else
|
||||||
|
echo "#dummy" > "$depfile"
|
||||||
|
fi
|
||||||
|
rm -f "$tmpdepfile" "$tmpdepfile2"
|
||||||
|
;;
|
||||||
|
|
||||||
|
tru64)
|
||||||
|
# The Tru64 compiler uses -MD to generate dependencies as a side
|
||||||
|
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
|
||||||
|
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
|
||||||
|
# dependencies in `foo.d' instead, so we check for that too.
|
||||||
|
# Subdirectories are respected.
|
||||||
|
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
|
||||||
|
test "x$dir" = "x$object" && dir=
|
||||||
|
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
|
||||||
|
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
# With Tru64 cc, shared objects can also be used to make a
|
||||||
|
# static library. This mechanism is used in libtool 1.4 series to
|
||||||
|
# handle both shared and static libraries in a single compilation.
|
||||||
|
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
|
||||||
|
#
|
||||||
|
# With libtool 1.5 this exception was removed, and libtool now
|
||||||
|
# generates 2 separate objects for the 2 libraries. These two
|
||||||
|
# compilations output dependencies in $dir.libs/$base.o.d and
|
||||||
|
# in $dir$base.o.d. We have to check for both files, because
|
||||||
|
# one of the two compilations can be disabled. We should prefer
|
||||||
|
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
|
||||||
|
# automatically cleaned when .libs/ is deleted, while ignoring
|
||||||
|
# the former would cause a distcleancheck panic.
|
||||||
|
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
|
||||||
|
tmpdepfile2=$dir$base.o.d # libtool 1.5
|
||||||
|
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
|
||||||
|
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
|
||||||
|
"$@" -Wc,-MD
|
||||||
|
else
|
||||||
|
tmpdepfile1=$dir$base.o.d
|
||||||
|
tmpdepfile2=$dir$base.d
|
||||||
|
tmpdepfile3=$dir$base.d
|
||||||
|
tmpdepfile4=$dir$base.d
|
||||||
|
"$@" -MD
|
||||||
|
fi
|
||||||
|
|
||||||
|
stat=$?
|
||||||
|
if test $stat -eq 0; then :
|
||||||
|
else
|
||||||
|
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
|
||||||
|
exit $stat
|
||||||
|
fi
|
||||||
|
|
||||||
|
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
|
||||||
|
do
|
||||||
|
test -f "$tmpdepfile" && break
|
||||||
|
done
|
||||||
|
if test -f "$tmpdepfile"; then
|
||||||
|
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
|
||||||
|
# That's a tab and a space in the [].
|
||||||
|
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
|
||||||
|
else
|
||||||
|
echo "#dummy" > "$depfile"
|
||||||
|
fi
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
#nosideeffect)
|
||||||
|
# This comment above is used by automake to tell side-effect
|
||||||
|
# dependency tracking mechanisms from slower ones.
|
||||||
|
|
||||||
|
dashmstdout)
|
||||||
|
# Important note: in order to support this mode, a compiler *must*
|
||||||
|
# always write the preprocessed file to stdout, regardless of -o.
|
||||||
|
"$@" || exit $?
|
||||||
|
|
||||||
|
# Remove the call to Libtool.
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
while test "X$1" != 'X--mode=compile'; do
|
||||||
|
shift
|
||||||
|
done
|
||||||
|
shift
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Remove `-o $object'.
|
||||||
|
IFS=" "
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
case $arg in
|
||||||
|
-o)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
$object)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
set fnord "$@" "$arg"
|
||||||
|
shift # fnord
|
||||||
|
shift # $arg
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
|
||||||
|
test -z "$dashmflag" && dashmflag=-M
|
||||||
|
# Require at least two characters before searching for `:'
|
||||||
|
# in the target name. This is to cope with DOS-style filenames:
|
||||||
|
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
|
||||||
|
"$@" $dashmflag |
|
||||||
|
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
|
||||||
|
rm -f "$depfile"
|
||||||
|
cat < "$tmpdepfile" > "$depfile"
|
||||||
|
tr ' ' '
|
||||||
|
' < "$tmpdepfile" | \
|
||||||
|
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||||
|
## correctly. Breaking it into two sed invocations is a workaround.
|
||||||
|
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
dashXmstdout)
|
||||||
|
# This case only exists to satisfy depend.m4. It is never actually
|
||||||
|
# run, as this mode is specially recognized in the preamble.
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
|
||||||
|
makedepend)
|
||||||
|
"$@" || exit $?
|
||||||
|
# Remove any Libtool call
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
while test "X$1" != 'X--mode=compile'; do
|
||||||
|
shift
|
||||||
|
done
|
||||||
|
shift
|
||||||
|
fi
|
||||||
|
# X makedepend
|
||||||
|
shift
|
||||||
|
cleared=no eat=no
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
case $cleared in
|
||||||
|
no)
|
||||||
|
set ""; shift
|
||||||
|
cleared=yes ;;
|
||||||
|
esac
|
||||||
|
if test $eat = yes; then
|
||||||
|
eat=no
|
||||||
|
continue
|
||||||
|
fi
|
||||||
|
case "$arg" in
|
||||||
|
-D*|-I*)
|
||||||
|
set fnord "$@" "$arg"; shift ;;
|
||||||
|
# Strip any option that makedepend may not understand. Remove
|
||||||
|
# the object too, otherwise makedepend will parse it as a source file.
|
||||||
|
-arch)
|
||||||
|
eat=yes ;;
|
||||||
|
-*|$object)
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
set fnord "$@" "$arg"; shift ;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
obj_suffix=`echo "$object" | sed 's/^.*\././'`
|
||||||
|
touch "$tmpdepfile"
|
||||||
|
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
|
||||||
|
rm -f "$depfile"
|
||||||
|
cat < "$tmpdepfile" > "$depfile"
|
||||||
|
sed '1,2d' "$tmpdepfile" | tr ' ' '
|
||||||
|
' | \
|
||||||
|
## Some versions of the HPUX 10.20 sed can't process this invocation
|
||||||
|
## correctly. Breaking it into two sed invocations is a workaround.
|
||||||
|
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile" "$tmpdepfile".bak
|
||||||
|
;;
|
||||||
|
|
||||||
|
cpp)
|
||||||
|
# Important note: in order to support this mode, a compiler *must*
|
||||||
|
# always write the preprocessed file to stdout.
|
||||||
|
"$@" || exit $?
|
||||||
|
|
||||||
|
# Remove the call to Libtool.
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
while test "X$1" != 'X--mode=compile'; do
|
||||||
|
shift
|
||||||
|
done
|
||||||
|
shift
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Remove `-o $object'.
|
||||||
|
IFS=" "
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
case $arg in
|
||||||
|
-o)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
$object)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
set fnord "$@" "$arg"
|
||||||
|
shift # fnord
|
||||||
|
shift # $arg
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
|
||||||
|
"$@" -E |
|
||||||
|
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
|
||||||
|
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
|
||||||
|
sed '$ s: \\$::' > "$tmpdepfile"
|
||||||
|
rm -f "$depfile"
|
||||||
|
echo "$object : \\" > "$depfile"
|
||||||
|
cat < "$tmpdepfile" >> "$depfile"
|
||||||
|
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
msvisualcpp)
|
||||||
|
# Important note: in order to support this mode, a compiler *must*
|
||||||
|
# always write the preprocessed file to stdout.
|
||||||
|
"$@" || exit $?
|
||||||
|
|
||||||
|
# Remove the call to Libtool.
|
||||||
|
if test "$libtool" = yes; then
|
||||||
|
while test "X$1" != 'X--mode=compile'; do
|
||||||
|
shift
|
||||||
|
done
|
||||||
|
shift
|
||||||
|
fi
|
||||||
|
|
||||||
|
IFS=" "
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
case "$arg" in
|
||||||
|
-o)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
$object)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
|
||||||
|
set fnord "$@"
|
||||||
|
shift
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
set fnord "$@" "$arg"
|
||||||
|
shift
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
"$@" -E 2>/dev/null |
|
||||||
|
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
|
||||||
|
rm -f "$depfile"
|
||||||
|
echo "$object : \\" > "$depfile"
|
||||||
|
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
|
||||||
|
echo " " >> "$depfile"
|
||||||
|
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
|
||||||
|
rm -f "$tmpdepfile"
|
||||||
|
;;
|
||||||
|
|
||||||
|
msvcmsys)
|
||||||
|
# This case exists only to let depend.m4 do its work. It works by
|
||||||
|
# looking at the text of this script. This case will never be run,
|
||||||
|
# since it is checked for above.
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
|
||||||
|
none)
|
||||||
|
exec "$@"
|
||||||
|
;;
|
||||||
|
|
||||||
|
*)
|
||||||
|
echo "Unknown depmode $depmode" 1>&2
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
exit 0
|
||||||
|
|
||||||
|
# Local Variables:
|
||||||
|
# mode: shell-script
|
||||||
|
# sh-indentation: 2
|
||||||
|
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||||
|
# time-stamp-start: "scriptversion="
|
||||||
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||||
|
# time-stamp-time-zone: "UTC"
|
||||||
|
# time-stamp-end: "; # UTC"
|
||||||
|
# End:
|
||||||
396
dynamic.c
Normal file
396
dynamic.c
Normal file
|
|
@ -0,0 +1,396 @@
|
||||||
|
/*
|
||||||
|
* dynamic.c -- dynamic address mapper
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <tayga.h>
|
||||||
|
|
||||||
|
#define MAP_FILE "dynamic.map"
|
||||||
|
#define TMP_MAP_FILE "dynamic.map~~"
|
||||||
|
|
||||||
|
extern struct config *gcfg;
|
||||||
|
extern time_t now;
|
||||||
|
|
||||||
|
static struct map_dynamic *alloc_map_dynamic(const struct in6_addr *addr6,
|
||||||
|
const struct in_addr *addr4, struct free_addr *f)
|
||||||
|
{
|
||||||
|
struct map_dynamic *d;
|
||||||
|
uint32_t a = ntohl(addr4->s_addr);
|
||||||
|
|
||||||
|
d = (struct map_dynamic *)malloc(sizeof(struct map_dynamic));
|
||||||
|
if (!d) {
|
||||||
|
slog(LOG_CRIT, "Unable to allocate memory\n");
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
memset(d, 0, sizeof(struct map_dynamic));
|
||||||
|
INIT_LIST_HEAD(&d->list);
|
||||||
|
|
||||||
|
d->map4.type = MAP_TYPE_DYNAMIC_HOST;
|
||||||
|
d->map4.addr = *addr4;
|
||||||
|
d->map4.prefix_len = 32;
|
||||||
|
calc_ip4_mask(&d->map4.mask, NULL, 32);
|
||||||
|
INIT_LIST_HEAD(&d->map4.list);
|
||||||
|
|
||||||
|
d->map6.type = MAP_TYPE_DYNAMIC_HOST;
|
||||||
|
d->map6.addr = *addr6;
|
||||||
|
d->map6.prefix_len = 128;
|
||||||
|
calc_ip6_mask(&d->map6.mask, NULL, 128);
|
||||||
|
INIT_LIST_HEAD(&d->map6.list);
|
||||||
|
|
||||||
|
d->free.addr = a;
|
||||||
|
d->free.count = f->count - (a - f->addr);
|
||||||
|
f->count = a - f->addr - 1;
|
||||||
|
INIT_LIST_HEAD(&d->free.list);
|
||||||
|
list_add(&d->free.list, &f->list);
|
||||||
|
|
||||||
|
return d;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void move_to_mapped(struct map_dynamic *d, struct dynamic_pool *pool)
|
||||||
|
{
|
||||||
|
insert_map4(&d->map4, NULL);
|
||||||
|
insert_map6(&d->map6, NULL);
|
||||||
|
list_add(&d->list, &pool->mapped_list);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void move_to_dormant(struct map_dynamic *d, struct dynamic_pool *pool)
|
||||||
|
{
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map_dynamic *s;
|
||||||
|
|
||||||
|
list_del(&d->map4.list);
|
||||||
|
list_del(&d->map6.list);
|
||||||
|
|
||||||
|
if (list_empty(&pool->dormant_list)) {
|
||||||
|
list_add_tail(&d->list, &pool->dormant_list);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
s = list_entry(pool->dormant_list.prev, struct map_dynamic, list);
|
||||||
|
if (s->last_use >= d->last_use) {
|
||||||
|
list_add_tail(&d->list, &pool->dormant_list);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
list_for_each(entry, &pool->dormant_list) {
|
||||||
|
s = list_entry(entry, struct map_dynamic, list);
|
||||||
|
if (s->last_use < d->last_use)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
list_add_tail(&d->list, entry);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void print_dyn_change(char *str, struct map_dynamic *d)
|
||||||
|
{
|
||||||
|
char addrbuf4[INET_ADDRSTRLEN];
|
||||||
|
char addrbuf6[INET6_ADDRSTRLEN];
|
||||||
|
|
||||||
|
inet_ntop(AF_INET, &d->map4.addr, addrbuf4, sizeof(addrbuf4));
|
||||||
|
inet_ntop(AF_INET6, &d->map6.addr, addrbuf6, sizeof(addrbuf6));
|
||||||
|
slog(LOG_DEBUG, "%s pool address %s (%s)\n", str, addrbuf4, addrbuf6);
|
||||||
|
}
|
||||||
|
|
||||||
|
struct map6 *assign_dynamic(const struct in6_addr *addr6)
|
||||||
|
{
|
||||||
|
struct dynamic_pool *pool;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct free_addr *f;
|
||||||
|
uint32_t i, addr, base, max;
|
||||||
|
struct in_addr addr4;
|
||||||
|
struct map4 *m4;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
|
||||||
|
pool = gcfg->dynamic_pool;
|
||||||
|
if (!pool)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
list_for_each(entry, &pool->dormant_list) {
|
||||||
|
d = list_entry(entry, struct map_dynamic, list);
|
||||||
|
if (IN6_ARE_ADDR_EQUAL(addr6, &d->map6.addr)) {
|
||||||
|
print_dyn_change("reactivated dormant", d);
|
||||||
|
goto activate;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
base = 0;
|
||||||
|
max = (1 << (32 - pool->map4.prefix_len)) - 1;
|
||||||
|
|
||||||
|
for (i = 0; i < 4; ++i) {
|
||||||
|
base += addr6->s6_addr32[i];
|
||||||
|
while (base & ~max)
|
||||||
|
base = (base & max) +
|
||||||
|
(base >> (32 - pool->map4.prefix_len));
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0, entry = NULL; i <= max; ++i) {
|
||||||
|
addr = pool->free_head.addr | ((base + i) & max);
|
||||||
|
if (!entry || addr == pool->free_head.addr)
|
||||||
|
entry = pool->free_list.next;
|
||||||
|
for (;;) {
|
||||||
|
f = list_entry(entry, struct free_addr, list);
|
||||||
|
if (f->addr + f->count >= addr)
|
||||||
|
break;
|
||||||
|
entry = entry->next;
|
||||||
|
}
|
||||||
|
if (f->addr >= addr)
|
||||||
|
continue;
|
||||||
|
addr4.s_addr = htonl(addr);
|
||||||
|
m4 = find_map4(&addr4);
|
||||||
|
if (m4 == &pool->map4) {
|
||||||
|
d = alloc_map_dynamic(addr6, &addr4, f);
|
||||||
|
if (!d)
|
||||||
|
return NULL;
|
||||||
|
print_dyn_change("assigned new", d);
|
||||||
|
gcfg->map_write_pending = 1;
|
||||||
|
goto activate;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (list_empty(&pool->dormant_list))
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
d = list_entry(pool->dormant_list.prev, struct map_dynamic, list);
|
||||||
|
d->map6.addr = *addr6;
|
||||||
|
print_dyn_change("reassigned dormant", d);
|
||||||
|
gcfg->map_write_pending = 1;
|
||||||
|
|
||||||
|
activate:
|
||||||
|
move_to_mapped(d, pool);
|
||||||
|
return &d->map6;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void load_map(struct dynamic_pool *pool, const struct in6_addr *addr6,
|
||||||
|
const struct in_addr *addr4, long int last_use)
|
||||||
|
{
|
||||||
|
struct list_head *entry;
|
||||||
|
struct free_addr *f;
|
||||||
|
uint32_t addr;
|
||||||
|
struct map4 *m4;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
char addrbuf4[INET_ADDRSTRLEN];
|
||||||
|
char addrbuf6[INET6_ADDRSTRLEN];
|
||||||
|
|
||||||
|
if (pool->map4.addr.s_addr != (addr4->s_addr &
|
||||||
|
pool->map4.mask.s_addr)) {
|
||||||
|
inet_ntop(AF_INET, addr4, addrbuf4, sizeof(addrbuf4));
|
||||||
|
slog(LOG_NOTICE, "Ignoring map for %s from %s/%s that lies "
|
||||||
|
"outside dynamic pool prefix\n", addrbuf4,
|
||||||
|
gcfg->data_dir, MAP_FILE);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
m4 = find_map4(addr4);
|
||||||
|
if (m4 != &pool->map4) {
|
||||||
|
inet_ntop(AF_INET, addr4, addrbuf4, sizeof(addrbuf4));
|
||||||
|
slog(LOG_NOTICE, "Ignoring map for %s from %s/%s that "
|
||||||
|
"conflicts with statically-configured map\n",
|
||||||
|
addrbuf4, gcfg->data_dir, MAP_FILE);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (validate_ip6_addr(addr6) < 0) {
|
||||||
|
inet_ntop(AF_INET, addr4, addrbuf4, sizeof(addrbuf4));
|
||||||
|
inet_ntop(AF_INET6, addr6, addrbuf6, sizeof(addrbuf6));
|
||||||
|
slog(LOG_NOTICE, "Ignoring map for %s from %s/%s with "
|
||||||
|
"invalid IPv6 address %s\n", addrbuf4,
|
||||||
|
gcfg->data_dir, MAP_FILE, addrbuf6);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (find_map6(addr6)) {
|
||||||
|
inet_ntop(AF_INET6, addr6, addrbuf6, sizeof(addrbuf6));
|
||||||
|
slog(LOG_NOTICE, "Ignoring map for %s from %s/%s that "
|
||||||
|
"conflicts with statically-configured map\n",
|
||||||
|
addrbuf6, gcfg->data_dir, MAP_FILE);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
addr = ntohl(addr4->s_addr);
|
||||||
|
list_for_each(entry, &pool->free_list) {
|
||||||
|
f = list_entry(entry, struct free_addr, list);
|
||||||
|
if (f->addr + f->count >= addr)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (entry == &pool->free_list || f->addr >= addr) {
|
||||||
|
inet_ntop(AF_INET, addr4, addrbuf4, sizeof(addrbuf4));
|
||||||
|
slog(LOG_NOTICE, "Ignoring duplicate map for %s from %s/%s\n",
|
||||||
|
addrbuf4, gcfg->data_dir, MAP_FILE);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
d = alloc_map_dynamic(addr6, addr4, f);
|
||||||
|
if (!d)
|
||||||
|
return;
|
||||||
|
d->last_use = last_use;
|
||||||
|
move_to_dormant(d, pool);
|
||||||
|
}
|
||||||
|
|
||||||
|
void load_dynamic(struct dynamic_pool *pool)
|
||||||
|
{
|
||||||
|
FILE *in;
|
||||||
|
char line[512];
|
||||||
|
char *s4, *s6, *stime, *end, *tokptr;
|
||||||
|
struct in_addr addr4;
|
||||||
|
struct in6_addr addr6;
|
||||||
|
long int last_use;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
int count = 0;
|
||||||
|
|
||||||
|
in = fopen(MAP_FILE, "r");
|
||||||
|
if (!in) {
|
||||||
|
if (errno != ENOENT)
|
||||||
|
slog(LOG_ERR, "Unable to open %s/%s, ignoring: %s\n",
|
||||||
|
gcfg->data_dir, MAP_FILE,
|
||||||
|
strerror(errno));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
while (fgets(line, sizeof(line), in)) {
|
||||||
|
if (strlen(line) + 1 == sizeof(line)) {
|
||||||
|
slog(LOG_ERR, "Ignoring oversized line in %s/%s\n",
|
||||||
|
gcfg->data_dir, MAP_FILE);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
s4 = strtok_r(line, DELIM, &tokptr);
|
||||||
|
if (!s4 || *s4 == '#')
|
||||||
|
continue;
|
||||||
|
s6 = strtok_r(NULL, DELIM, &tokptr);
|
||||||
|
if (!s6)
|
||||||
|
goto malformed;
|
||||||
|
stime = strtok_r(NULL, DELIM, &tokptr);
|
||||||
|
if (!stime)
|
||||||
|
goto malformed;
|
||||||
|
end = strtok_r(NULL, DELIM, &tokptr);
|
||||||
|
if (end)
|
||||||
|
goto malformed;
|
||||||
|
if (!inet_pton(AF_INET, s4, &addr4) ||
|
||||||
|
!inet_pton(AF_INET6, s6, &addr6))
|
||||||
|
goto malformed;
|
||||||
|
last_use = strtol(stime, &end, 10);
|
||||||
|
if (last_use <= 0 || *end)
|
||||||
|
goto malformed;
|
||||||
|
load_map(pool, &addr6, &addr4, last_use);
|
||||||
|
continue;
|
||||||
|
malformed:
|
||||||
|
slog(LOG_ERR, "Ignoring malformed line in %s/%s\n",
|
||||||
|
gcfg->data_dir, MAP_FILE);
|
||||||
|
}
|
||||||
|
fclose(in);
|
||||||
|
|
||||||
|
time(&now);
|
||||||
|
last_use = 0;
|
||||||
|
list_for_each(entry, &pool->dormant_list) {
|
||||||
|
d = list_entry(entry, struct map_dynamic, list);
|
||||||
|
if (d->last_use > last_use)
|
||||||
|
last_use = d->last_use;
|
||||||
|
++count;
|
||||||
|
}
|
||||||
|
slog(LOG_INFO, "Loaded %d dynamic %s from %s/%s\n", count,
|
||||||
|
count == 1 ? "map" : "maps",
|
||||||
|
gcfg->data_dir, MAP_FILE);
|
||||||
|
if (last_use > now) {
|
||||||
|
slog(LOG_DEBUG, "Note: maps in %s/%s are dated in the future\n",
|
||||||
|
gcfg->data_dir, MAP_FILE);
|
||||||
|
list_for_each(entry, &pool->dormant_list) {
|
||||||
|
d = list_entry(entry, struct map_dynamic, list);
|
||||||
|
d->last_use = now - gcfg->dyn_min_lease;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
while (!list_empty(&pool->dormant_list)) {
|
||||||
|
d = list_entry(pool->dormant_list.next,
|
||||||
|
struct map_dynamic, list);
|
||||||
|
if (d->last_use + gcfg->dyn_min_lease < now)
|
||||||
|
break;
|
||||||
|
move_to_mapped(d, pool);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void write_to_file(struct dynamic_pool *pool)
|
||||||
|
{
|
||||||
|
FILE *out;
|
||||||
|
struct list_head *entry;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
char addrbuf4[INET_ADDRSTRLEN];
|
||||||
|
char addrbuf6[INET6_ADDRSTRLEN];
|
||||||
|
|
||||||
|
out = fopen(TMP_MAP_FILE, "w");
|
||||||
|
if (!out) {
|
||||||
|
slog(LOG_ERR, "Unable to open %s/%s for writing: %s\n",
|
||||||
|
gcfg->data_dir, TMP_MAP_FILE,
|
||||||
|
strerror(errno));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
fprintf(out, "###\n###\n### TAYGA dynamic map database\n###\n"
|
||||||
|
"### You can edit this (carefully!) as long as "
|
||||||
|
"you shut down TAYGA first\n###\n###\n"
|
||||||
|
"### Last written: %s###\n###\n\n",
|
||||||
|
asctime(gmtime(&now)));
|
||||||
|
entry = pool->mapped_list.next;
|
||||||
|
while (entry != &pool->dormant_list) {
|
||||||
|
if (entry == &pool->mapped_list) {
|
||||||
|
entry = pool->dormant_list.next;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
d = list_entry(entry, struct map_dynamic, list);
|
||||||
|
inet_ntop(AF_INET, &d->map4.addr, addrbuf4, sizeof(addrbuf4));
|
||||||
|
inet_ntop(AF_INET6, &d->map6.addr, addrbuf6, sizeof(addrbuf6));
|
||||||
|
fprintf(out, "%s\t%s\t%ld\n", addrbuf4, addrbuf6,
|
||||||
|
d->cache_entry ?
|
||||||
|
d->cache_entry->last_use : d->last_use);
|
||||||
|
entry = entry->next;
|
||||||
|
}
|
||||||
|
fclose(out);
|
||||||
|
if (rename(TMP_MAP_FILE, MAP_FILE) < 0) {
|
||||||
|
slog(LOG_ERR, "Unable to rename %s/%s to %s/%s: %s\n",
|
||||||
|
gcfg->data_dir, TMP_MAP_FILE,
|
||||||
|
gcfg->data_dir, MAP_FILE,
|
||||||
|
strerror(errno));
|
||||||
|
unlink(TMP_MAP_FILE);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void dynamic_maint(struct dynamic_pool *pool, int shutdown)
|
||||||
|
{
|
||||||
|
struct list_head *entry, *next;
|
||||||
|
struct map_dynamic *d;
|
||||||
|
struct free_addr *f;
|
||||||
|
|
||||||
|
list_for_each_safe(entry, next, &pool->mapped_list) {
|
||||||
|
d = list_entry(entry, struct map_dynamic, list);
|
||||||
|
if (d->cache_entry)
|
||||||
|
continue;
|
||||||
|
if (d->last_use + gcfg->dyn_min_lease < now) {
|
||||||
|
print_dyn_change("unmapped dormant", d);
|
||||||
|
move_to_dormant(d, pool);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
while (!list_empty(&pool->dormant_list)) {
|
||||||
|
d = list_entry(pool->dormant_list.prev,
|
||||||
|
struct map_dynamic, list);
|
||||||
|
if (d->last_use + gcfg->dyn_max_lease >= now)
|
||||||
|
break;
|
||||||
|
f = list_entry(d->free.list.prev, struct free_addr, list);
|
||||||
|
f->count += d->free.count + 1;
|
||||||
|
list_del(&d->free.list);
|
||||||
|
list_del(&d->list);
|
||||||
|
free(d);
|
||||||
|
}
|
||||||
|
if (gcfg->data_dir[0]) {
|
||||||
|
if (shutdown || gcfg->map_write_pending ||
|
||||||
|
gcfg->last_map_write +
|
||||||
|
gcfg->max_commit_delay < now ||
|
||||||
|
gcfg->last_map_write > now) {
|
||||||
|
write_to_file(pool);
|
||||||
|
gcfg->last_map_write = now;
|
||||||
|
gcfg->map_write_pending = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
520
install-sh
Executable file
520
install-sh
Executable file
|
|
@ -0,0 +1,520 @@
|
||||||
|
#!/bin/sh
|
||||||
|
# install - install a program, script, or datafile
|
||||||
|
|
||||||
|
scriptversion=2009-04-28.21; # UTC
|
||||||
|
|
||||||
|
# This originates from X11R5 (mit/util/scripts/install.sh), which was
|
||||||
|
# later released in X11R6 (xc/config/util/install.sh) with the
|
||||||
|
# following copyright and license.
|
||||||
|
#
|
||||||
|
# Copyright (C) 1994 X Consortium
|
||||||
|
#
|
||||||
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
# of this software and associated documentation files (the "Software"), to
|
||||||
|
# deal in the Software without restriction, including without limitation the
|
||||||
|
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||||
|
# sell copies of the Software, and to permit persons to whom the Software is
|
||||||
|
# furnished to do so, subject to the following conditions:
|
||||||
|
#
|
||||||
|
# The above copyright notice and this permission notice shall be included in
|
||||||
|
# all copies or substantial portions of the Software.
|
||||||
|
#
|
||||||
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
|
||||||
|
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
|
||||||
|
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
#
|
||||||
|
# Except as contained in this notice, the name of the X Consortium shall not
|
||||||
|
# be used in advertising or otherwise to promote the sale, use or other deal-
|
||||||
|
# ings in this Software without prior written authorization from the X Consor-
|
||||||
|
# tium.
|
||||||
|
#
|
||||||
|
#
|
||||||
|
# FSF changes to this file are in the public domain.
|
||||||
|
#
|
||||||
|
# Calling this script install-sh is preferred over install.sh, to prevent
|
||||||
|
# `make' implicit rules from creating a file called install from it
|
||||||
|
# when there is no Makefile.
|
||||||
|
#
|
||||||
|
# This script is compatible with the BSD install script, but was written
|
||||||
|
# from scratch.
|
||||||
|
|
||||||
|
nl='
|
||||||
|
'
|
||||||
|
IFS=" "" $nl"
|
||||||
|
|
||||||
|
# set DOITPROG to echo to test this script
|
||||||
|
|
||||||
|
# Don't use :- since 4.3BSD and earlier shells don't like it.
|
||||||
|
doit=${DOITPROG-}
|
||||||
|
if test -z "$doit"; then
|
||||||
|
doit_exec=exec
|
||||||
|
else
|
||||||
|
doit_exec=$doit
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Put in absolute file names if you don't have them in your path;
|
||||||
|
# or use environment vars.
|
||||||
|
|
||||||
|
chgrpprog=${CHGRPPROG-chgrp}
|
||||||
|
chmodprog=${CHMODPROG-chmod}
|
||||||
|
chownprog=${CHOWNPROG-chown}
|
||||||
|
cmpprog=${CMPPROG-cmp}
|
||||||
|
cpprog=${CPPROG-cp}
|
||||||
|
mkdirprog=${MKDIRPROG-mkdir}
|
||||||
|
mvprog=${MVPROG-mv}
|
||||||
|
rmprog=${RMPROG-rm}
|
||||||
|
stripprog=${STRIPPROG-strip}
|
||||||
|
|
||||||
|
posix_glob='?'
|
||||||
|
initialize_posix_glob='
|
||||||
|
test "$posix_glob" != "?" || {
|
||||||
|
if (set -f) 2>/dev/null; then
|
||||||
|
posix_glob=
|
||||||
|
else
|
||||||
|
posix_glob=:
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
'
|
||||||
|
|
||||||
|
posix_mkdir=
|
||||||
|
|
||||||
|
# Desired mode of installed file.
|
||||||
|
mode=0755
|
||||||
|
|
||||||
|
chgrpcmd=
|
||||||
|
chmodcmd=$chmodprog
|
||||||
|
chowncmd=
|
||||||
|
mvcmd=$mvprog
|
||||||
|
rmcmd="$rmprog -f"
|
||||||
|
stripcmd=
|
||||||
|
|
||||||
|
src=
|
||||||
|
dst=
|
||||||
|
dir_arg=
|
||||||
|
dst_arg=
|
||||||
|
|
||||||
|
copy_on_change=false
|
||||||
|
no_target_directory=
|
||||||
|
|
||||||
|
usage="\
|
||||||
|
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
|
||||||
|
or: $0 [OPTION]... SRCFILES... DIRECTORY
|
||||||
|
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
|
||||||
|
or: $0 [OPTION]... -d DIRECTORIES...
|
||||||
|
|
||||||
|
In the 1st form, copy SRCFILE to DSTFILE.
|
||||||
|
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
|
||||||
|
In the 4th, create DIRECTORIES.
|
||||||
|
|
||||||
|
Options:
|
||||||
|
--help display this help and exit.
|
||||||
|
--version display version info and exit.
|
||||||
|
|
||||||
|
-c (ignored)
|
||||||
|
-C install only if different (preserve the last data modification time)
|
||||||
|
-d create directories instead of installing files.
|
||||||
|
-g GROUP $chgrpprog installed files to GROUP.
|
||||||
|
-m MODE $chmodprog installed files to MODE.
|
||||||
|
-o USER $chownprog installed files to USER.
|
||||||
|
-s $stripprog installed files.
|
||||||
|
-t DIRECTORY install into DIRECTORY.
|
||||||
|
-T report an error if DSTFILE is a directory.
|
||||||
|
|
||||||
|
Environment variables override the default commands:
|
||||||
|
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
|
||||||
|
RMPROG STRIPPROG
|
||||||
|
"
|
||||||
|
|
||||||
|
while test $# -ne 0; do
|
||||||
|
case $1 in
|
||||||
|
-c) ;;
|
||||||
|
|
||||||
|
-C) copy_on_change=true;;
|
||||||
|
|
||||||
|
-d) dir_arg=true;;
|
||||||
|
|
||||||
|
-g) chgrpcmd="$chgrpprog $2"
|
||||||
|
shift;;
|
||||||
|
|
||||||
|
--help) echo "$usage"; exit $?;;
|
||||||
|
|
||||||
|
-m) mode=$2
|
||||||
|
case $mode in
|
||||||
|
*' '* | *' '* | *'
|
||||||
|
'* | *'*'* | *'?'* | *'['*)
|
||||||
|
echo "$0: invalid mode: $mode" >&2
|
||||||
|
exit 1;;
|
||||||
|
esac
|
||||||
|
shift;;
|
||||||
|
|
||||||
|
-o) chowncmd="$chownprog $2"
|
||||||
|
shift;;
|
||||||
|
|
||||||
|
-s) stripcmd=$stripprog;;
|
||||||
|
|
||||||
|
-t) dst_arg=$2
|
||||||
|
shift;;
|
||||||
|
|
||||||
|
-T) no_target_directory=true;;
|
||||||
|
|
||||||
|
--version) echo "$0 $scriptversion"; exit $?;;
|
||||||
|
|
||||||
|
--) shift
|
||||||
|
break;;
|
||||||
|
|
||||||
|
-*) echo "$0: invalid option: $1" >&2
|
||||||
|
exit 1;;
|
||||||
|
|
||||||
|
*) break;;
|
||||||
|
esac
|
||||||
|
shift
|
||||||
|
done
|
||||||
|
|
||||||
|
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
|
||||||
|
# When -d is used, all remaining arguments are directories to create.
|
||||||
|
# When -t is used, the destination is already specified.
|
||||||
|
# Otherwise, the last argument is the destination. Remove it from $@.
|
||||||
|
for arg
|
||||||
|
do
|
||||||
|
if test -n "$dst_arg"; then
|
||||||
|
# $@ is not empty: it contains at least $arg.
|
||||||
|
set fnord "$@" "$dst_arg"
|
||||||
|
shift # fnord
|
||||||
|
fi
|
||||||
|
shift # arg
|
||||||
|
dst_arg=$arg
|
||||||
|
done
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test $# -eq 0; then
|
||||||
|
if test -z "$dir_arg"; then
|
||||||
|
echo "$0: no input file specified." >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
# It's OK to call `install-sh -d' without argument.
|
||||||
|
# This can happen when creating conditional directories.
|
||||||
|
exit 0
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test -z "$dir_arg"; then
|
||||||
|
trap '(exit $?); exit' 1 2 13 15
|
||||||
|
|
||||||
|
# Set umask so as not to create temps with too-generous modes.
|
||||||
|
# However, 'strip' requires both read and write access to temps.
|
||||||
|
case $mode in
|
||||||
|
# Optimize common cases.
|
||||||
|
*644) cp_umask=133;;
|
||||||
|
*755) cp_umask=22;;
|
||||||
|
|
||||||
|
*[0-7])
|
||||||
|
if test -z "$stripcmd"; then
|
||||||
|
u_plus_rw=
|
||||||
|
else
|
||||||
|
u_plus_rw='% 200'
|
||||||
|
fi
|
||||||
|
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
|
||||||
|
*)
|
||||||
|
if test -z "$stripcmd"; then
|
||||||
|
u_plus_rw=
|
||||||
|
else
|
||||||
|
u_plus_rw=,u+rw
|
||||||
|
fi
|
||||||
|
cp_umask=$mode$u_plus_rw;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
|
||||||
|
for src
|
||||||
|
do
|
||||||
|
# Protect names starting with `-'.
|
||||||
|
case $src in
|
||||||
|
-*) src=./$src;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
if test -n "$dir_arg"; then
|
||||||
|
dst=$src
|
||||||
|
dstdir=$dst
|
||||||
|
test -d "$dstdir"
|
||||||
|
dstdir_status=$?
|
||||||
|
else
|
||||||
|
|
||||||
|
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
|
||||||
|
# might cause directories to be created, which would be especially bad
|
||||||
|
# if $src (and thus $dsttmp) contains '*'.
|
||||||
|
if test ! -f "$src" && test ! -d "$src"; then
|
||||||
|
echo "$0: $src does not exist." >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test -z "$dst_arg"; then
|
||||||
|
echo "$0: no destination specified." >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
dst=$dst_arg
|
||||||
|
# Protect names starting with `-'.
|
||||||
|
case $dst in
|
||||||
|
-*) dst=./$dst;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# If destination is a directory, append the input filename; won't work
|
||||||
|
# if double slashes aren't ignored.
|
||||||
|
if test -d "$dst"; then
|
||||||
|
if test -n "$no_target_directory"; then
|
||||||
|
echo "$0: $dst_arg: Is a directory" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
dstdir=$dst
|
||||||
|
dst=$dstdir/`basename "$src"`
|
||||||
|
dstdir_status=0
|
||||||
|
else
|
||||||
|
# Prefer dirname, but fall back on a substitute if dirname fails.
|
||||||
|
dstdir=`
|
||||||
|
(dirname "$dst") 2>/dev/null ||
|
||||||
|
expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
|
||||||
|
X"$dst" : 'X\(//\)[^/]' \| \
|
||||||
|
X"$dst" : 'X\(//\)$' \| \
|
||||||
|
X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
|
||||||
|
echo X"$dst" |
|
||||||
|
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
|
||||||
|
s//\1/
|
||||||
|
q
|
||||||
|
}
|
||||||
|
/^X\(\/\/\)[^/].*/{
|
||||||
|
s//\1/
|
||||||
|
q
|
||||||
|
}
|
||||||
|
/^X\(\/\/\)$/{
|
||||||
|
s//\1/
|
||||||
|
q
|
||||||
|
}
|
||||||
|
/^X\(\/\).*/{
|
||||||
|
s//\1/
|
||||||
|
q
|
||||||
|
}
|
||||||
|
s/.*/./; q'
|
||||||
|
`
|
||||||
|
|
||||||
|
test -d "$dstdir"
|
||||||
|
dstdir_status=$?
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
obsolete_mkdir_used=false
|
||||||
|
|
||||||
|
if test $dstdir_status != 0; then
|
||||||
|
case $posix_mkdir in
|
||||||
|
'')
|
||||||
|
# Create intermediate dirs using mode 755 as modified by the umask.
|
||||||
|
# This is like FreeBSD 'install' as of 1997-10-28.
|
||||||
|
umask=`umask`
|
||||||
|
case $stripcmd.$umask in
|
||||||
|
# Optimize common cases.
|
||||||
|
*[2367][2367]) mkdir_umask=$umask;;
|
||||||
|
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
|
||||||
|
|
||||||
|
*[0-7])
|
||||||
|
mkdir_umask=`expr $umask + 22 \
|
||||||
|
- $umask % 100 % 40 + $umask % 20 \
|
||||||
|
- $umask % 10 % 4 + $umask % 2
|
||||||
|
`;;
|
||||||
|
*) mkdir_umask=$umask,go-w;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# With -d, create the new directory with the user-specified mode.
|
||||||
|
# Otherwise, rely on $mkdir_umask.
|
||||||
|
if test -n "$dir_arg"; then
|
||||||
|
mkdir_mode=-m$mode
|
||||||
|
else
|
||||||
|
mkdir_mode=
|
||||||
|
fi
|
||||||
|
|
||||||
|
posix_mkdir=false
|
||||||
|
case $umask in
|
||||||
|
*[123567][0-7][0-7])
|
||||||
|
# POSIX mkdir -p sets u+wx bits regardless of umask, which
|
||||||
|
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
|
||||||
|
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
|
||||||
|
|
||||||
|
if (umask $mkdir_umask &&
|
||||||
|
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
|
||||||
|
then
|
||||||
|
if test -z "$dir_arg" || {
|
||||||
|
# Check for POSIX incompatibilities with -m.
|
||||||
|
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
|
||||||
|
# other-writeable bit of parent directory when it shouldn't.
|
||||||
|
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
|
||||||
|
ls_ld_tmpdir=`ls -ld "$tmpdir"`
|
||||||
|
case $ls_ld_tmpdir in
|
||||||
|
d????-?r-*) different_mode=700;;
|
||||||
|
d????-?--*) different_mode=755;;
|
||||||
|
*) false;;
|
||||||
|
esac &&
|
||||||
|
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
|
||||||
|
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
|
||||||
|
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
then posix_mkdir=:
|
||||||
|
fi
|
||||||
|
rmdir "$tmpdir/d" "$tmpdir"
|
||||||
|
else
|
||||||
|
# Remove any dirs left behind by ancient mkdir implementations.
|
||||||
|
rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
|
||||||
|
fi
|
||||||
|
trap '' 0;;
|
||||||
|
esac;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
if
|
||||||
|
$posix_mkdir && (
|
||||||
|
umask $mkdir_umask &&
|
||||||
|
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
|
||||||
|
)
|
||||||
|
then :
|
||||||
|
else
|
||||||
|
|
||||||
|
# The umask is ridiculous, or mkdir does not conform to POSIX,
|
||||||
|
# or it failed possibly due to a race condition. Create the
|
||||||
|
# directory the slow way, step by step, checking for races as we go.
|
||||||
|
|
||||||
|
case $dstdir in
|
||||||
|
/*) prefix='/';;
|
||||||
|
-*) prefix='./';;
|
||||||
|
*) prefix='';;
|
||||||
|
esac
|
||||||
|
|
||||||
|
eval "$initialize_posix_glob"
|
||||||
|
|
||||||
|
oIFS=$IFS
|
||||||
|
IFS=/
|
||||||
|
$posix_glob set -f
|
||||||
|
set fnord $dstdir
|
||||||
|
shift
|
||||||
|
$posix_glob set +f
|
||||||
|
IFS=$oIFS
|
||||||
|
|
||||||
|
prefixes=
|
||||||
|
|
||||||
|
for d
|
||||||
|
do
|
||||||
|
test -z "$d" && continue
|
||||||
|
|
||||||
|
prefix=$prefix$d
|
||||||
|
if test -d "$prefix"; then
|
||||||
|
prefixes=
|
||||||
|
else
|
||||||
|
if $posix_mkdir; then
|
||||||
|
(umask=$mkdir_umask &&
|
||||||
|
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
|
||||||
|
# Don't fail if two instances are running concurrently.
|
||||||
|
test -d "$prefix" || exit 1
|
||||||
|
else
|
||||||
|
case $prefix in
|
||||||
|
*\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
|
||||||
|
*) qprefix=$prefix;;
|
||||||
|
esac
|
||||||
|
prefixes="$prefixes '$qprefix'"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
prefix=$prefix/
|
||||||
|
done
|
||||||
|
|
||||||
|
if test -n "$prefixes"; then
|
||||||
|
# Don't fail if two instances are running concurrently.
|
||||||
|
(umask $mkdir_umask &&
|
||||||
|
eval "\$doit_exec \$mkdirprog $prefixes") ||
|
||||||
|
test -d "$dstdir" || exit 1
|
||||||
|
obsolete_mkdir_used=true
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test -n "$dir_arg"; then
|
||||||
|
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
|
||||||
|
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
|
||||||
|
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
|
||||||
|
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
|
||||||
|
else
|
||||||
|
|
||||||
|
# Make a couple of temp file names in the proper directory.
|
||||||
|
dsttmp=$dstdir/_inst.$$_
|
||||||
|
rmtmp=$dstdir/_rm.$$_
|
||||||
|
|
||||||
|
# Trap to clean up those temp files at exit.
|
||||||
|
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
|
||||||
|
|
||||||
|
# Copy the file name to the temp name.
|
||||||
|
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
|
||||||
|
|
||||||
|
# and set any options; do chmod last to preserve setuid bits.
|
||||||
|
#
|
||||||
|
# If any of these fail, we abort the whole thing. If we want to
|
||||||
|
# ignore errors from any of these, just make sure not to ignore
|
||||||
|
# errors from the above "$doit $cpprog $src $dsttmp" command.
|
||||||
|
#
|
||||||
|
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
|
||||||
|
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
|
||||||
|
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
|
||||||
|
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
|
||||||
|
|
||||||
|
# If -C, don't bother to copy if it wouldn't change the file.
|
||||||
|
if $copy_on_change &&
|
||||||
|
old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
|
||||||
|
new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
|
||||||
|
|
||||||
|
eval "$initialize_posix_glob" &&
|
||||||
|
$posix_glob set -f &&
|
||||||
|
set X $old && old=:$2:$4:$5:$6 &&
|
||||||
|
set X $new && new=:$2:$4:$5:$6 &&
|
||||||
|
$posix_glob set +f &&
|
||||||
|
|
||||||
|
test "$old" = "$new" &&
|
||||||
|
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
|
||||||
|
then
|
||||||
|
rm -f "$dsttmp"
|
||||||
|
else
|
||||||
|
# Rename the file to the real destination.
|
||||||
|
$doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
|
||||||
|
|
||||||
|
# The rename failed, perhaps because mv can't rename something else
|
||||||
|
# to itself, or perhaps because mv is so ancient that it does not
|
||||||
|
# support -f.
|
||||||
|
{
|
||||||
|
# Now remove or move aside any old file at destination location.
|
||||||
|
# We try this two ways since rm can't unlink itself on some
|
||||||
|
# systems and the destination file might be busy for other
|
||||||
|
# reasons. In this case, the final cleanup might fail but the new
|
||||||
|
# file should still install successfully.
|
||||||
|
{
|
||||||
|
test ! -f "$dst" ||
|
||||||
|
$doit $rmcmd -f "$dst" 2>/dev/null ||
|
||||||
|
{ $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
|
||||||
|
{ $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
|
||||||
|
} ||
|
||||||
|
{ echo "$0: cannot unlink or rename $dst" >&2
|
||||||
|
(exit 1); exit 1
|
||||||
|
}
|
||||||
|
} &&
|
||||||
|
|
||||||
|
# Now rename the file to the real destination.
|
||||||
|
$doit $mvcmd "$dsttmp" "$dst"
|
||||||
|
}
|
||||||
|
fi || exit 1
|
||||||
|
|
||||||
|
trap '' 0
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
|
||||||
|
# Local variables:
|
||||||
|
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||||
|
# time-stamp-start: "scriptversion="
|
||||||
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||||
|
# time-stamp-time-zone: "UTC"
|
||||||
|
# time-stamp-end: "; # UTC"
|
||||||
|
# End:
|
||||||
80
list.h
Normal file
80
list.h
Normal file
|
|
@ -0,0 +1,80 @@
|
||||||
|
/* Linux-style linked list implementation */
|
||||||
|
|
||||||
|
#ifndef __LIST_H__
|
||||||
|
#define __LIST_H__
|
||||||
|
|
||||||
|
#include <stddef.h> /* for offsetof() macro */
|
||||||
|
|
||||||
|
struct list_head {
|
||||||
|
struct list_head *next;
|
||||||
|
struct list_head *prev;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Declare an empty list */
|
||||||
|
#define LIST_HEAD(x) struct list_head x = { &x, &x }
|
||||||
|
|
||||||
|
/* Initialize an empty list (required for all malloc'd list_heads) */
|
||||||
|
static inline void INIT_LIST_HEAD(struct list_head *x)
|
||||||
|
{
|
||||||
|
x->next = x;
|
||||||
|
x->prev = x;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove an entry from its current list (if any) and insert it into the
|
||||||
|
* beginning of the given list */
|
||||||
|
static inline void list_add(struct list_head *x, struct list_head *head)
|
||||||
|
{
|
||||||
|
x->next->prev = x->prev;
|
||||||
|
x->prev->next = x->next;
|
||||||
|
x->next = head->next;
|
||||||
|
x->prev = head;
|
||||||
|
head->next = x;
|
||||||
|
x->next->prev = x;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove an entry from its current list (if any) and insert it into the
|
||||||
|
* end of the given list */
|
||||||
|
static inline void list_add_tail(struct list_head *x, struct list_head *head)
|
||||||
|
{
|
||||||
|
x->next->prev = x->prev;
|
||||||
|
x->prev->next = x->next;
|
||||||
|
x->prev = head->prev;
|
||||||
|
x->next = head;
|
||||||
|
head->prev = x;
|
||||||
|
x->prev->next = x;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Remove an entry from its current list and reinitialize it */
|
||||||
|
static inline void list_del(struct list_head *x)
|
||||||
|
{
|
||||||
|
x->next->prev = x->prev;
|
||||||
|
x->prev->next = x->next;
|
||||||
|
x->next = x;
|
||||||
|
x->prev = x;
|
||||||
|
}
|
||||||
|
|
||||||
|
#define list_del_init list_del
|
||||||
|
#define list_move list_add
|
||||||
|
#define list_move_tail list_add_tail
|
||||||
|
|
||||||
|
/* Test if list is empty (contains no other entries) */
|
||||||
|
static inline int list_empty(const struct list_head *x)
|
||||||
|
{
|
||||||
|
return x->next == x;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Get a pointer to the object containing x, which is of type "type" and
|
||||||
|
* embeds x as a field called "field" */
|
||||||
|
#define list_entry(x, type, field) ({ \
|
||||||
|
const typeof( ((type *)0)->field ) *__mptr = (x); \
|
||||||
|
(type *)( (char *)__mptr - offsetof(type, field) );})
|
||||||
|
|
||||||
|
/* Iterate over all items in the list */
|
||||||
|
#define list_for_each(x, head) \
|
||||||
|
for (x = (head)->next; x != (head); x = x->next)
|
||||||
|
|
||||||
|
/* Iterate over all items in the list, possibly deleting some */
|
||||||
|
#define list_for_each_safe(x, n, head) \
|
||||||
|
for (x = (head)->next, n = x->next; x != (head); x = n, n = x->next)
|
||||||
|
|
||||||
|
#endif /* __LIST_H__ */
|
||||||
376
missing
Executable file
376
missing
Executable file
|
|
@ -0,0 +1,376 @@
|
||||||
|
#! /bin/sh
|
||||||
|
# Common stub for a few missing GNU programs while installing.
|
||||||
|
|
||||||
|
scriptversion=2009-04-28.21; # UTC
|
||||||
|
|
||||||
|
# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
|
||||||
|
# 2008, 2009 Free Software Foundation, Inc.
|
||||||
|
# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
|
||||||
|
|
||||||
|
# This program is free software; you can redistribute it and/or modify
|
||||||
|
# it under the terms of the GNU General Public License as published by
|
||||||
|
# the Free Software Foundation; either version 2, or (at your option)
|
||||||
|
# any later version.
|
||||||
|
|
||||||
|
# This program is distributed in the hope that it will be useful,
|
||||||
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
# GNU General Public License for more details.
|
||||||
|
|
||||||
|
# You should have received a copy of the GNU General Public License
|
||||||
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
# As a special exception to the GNU General Public License, if you
|
||||||
|
# distribute this file as part of a program that contains a
|
||||||
|
# configuration script generated by Autoconf, you may include it under
|
||||||
|
# the same distribution terms that you use for the rest of that program.
|
||||||
|
|
||||||
|
if test $# -eq 0; then
|
||||||
|
echo 1>&2 "Try \`$0 --help' for more information"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
run=:
|
||||||
|
sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
|
||||||
|
sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
|
||||||
|
|
||||||
|
# In the cases where this matters, `missing' is being run in the
|
||||||
|
# srcdir already.
|
||||||
|
if test -f configure.ac; then
|
||||||
|
configure_ac=configure.ac
|
||||||
|
else
|
||||||
|
configure_ac=configure.in
|
||||||
|
fi
|
||||||
|
|
||||||
|
msg="missing on your system"
|
||||||
|
|
||||||
|
case $1 in
|
||||||
|
--run)
|
||||||
|
# Try to run requested program, and just exit if it succeeds.
|
||||||
|
run=
|
||||||
|
shift
|
||||||
|
"$@" && exit 0
|
||||||
|
# Exit code 63 means version mismatch. This often happens
|
||||||
|
# when the user try to use an ancient version of a tool on
|
||||||
|
# a file that requires a minimum version. In this case we
|
||||||
|
# we should proceed has if the program had been absent, or
|
||||||
|
# if --run hadn't been passed.
|
||||||
|
if test $? = 63; then
|
||||||
|
run=:
|
||||||
|
msg="probably too old"
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
-h|--h|--he|--hel|--help)
|
||||||
|
echo "\
|
||||||
|
$0 [OPTION]... PROGRAM [ARGUMENT]...
|
||||||
|
|
||||||
|
Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
|
||||||
|
error status if there is no known handling for PROGRAM.
|
||||||
|
|
||||||
|
Options:
|
||||||
|
-h, --help display this help and exit
|
||||||
|
-v, --version output version information and exit
|
||||||
|
--run try to run the given command, and emulate it if it fails
|
||||||
|
|
||||||
|
Supported PROGRAM values:
|
||||||
|
aclocal touch file \`aclocal.m4'
|
||||||
|
autoconf touch file \`configure'
|
||||||
|
autoheader touch file \`config.h.in'
|
||||||
|
autom4te touch the output file, or create a stub one
|
||||||
|
automake touch all \`Makefile.in' files
|
||||||
|
bison create \`y.tab.[ch]', if possible, from existing .[ch]
|
||||||
|
flex create \`lex.yy.c', if possible, from existing .c
|
||||||
|
help2man touch the output file
|
||||||
|
lex create \`lex.yy.c', if possible, from existing .c
|
||||||
|
makeinfo touch the output file
|
||||||
|
tar try tar, gnutar, gtar, then tar without non-portable flags
|
||||||
|
yacc create \`y.tab.[ch]', if possible, from existing .[ch]
|
||||||
|
|
||||||
|
Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
|
||||||
|
\`g' are ignored when checking the name.
|
||||||
|
|
||||||
|
Send bug reports to <bug-automake@gnu.org>."
|
||||||
|
exit $?
|
||||||
|
;;
|
||||||
|
|
||||||
|
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
|
||||||
|
echo "missing $scriptversion (GNU Automake)"
|
||||||
|
exit $?
|
||||||
|
;;
|
||||||
|
|
||||||
|
-*)
|
||||||
|
echo 1>&2 "$0: Unknown \`$1' option"
|
||||||
|
echo 1>&2 "Try \`$0 --help' for more information"
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
|
||||||
|
esac
|
||||||
|
|
||||||
|
# normalize program name to check for.
|
||||||
|
program=`echo "$1" | sed '
|
||||||
|
s/^gnu-//; t
|
||||||
|
s/^gnu//; t
|
||||||
|
s/^g//; t'`
|
||||||
|
|
||||||
|
# Now exit if we have it, but it failed. Also exit now if we
|
||||||
|
# don't have it and --version was passed (most likely to detect
|
||||||
|
# the program). This is about non-GNU programs, so use $1 not
|
||||||
|
# $program.
|
||||||
|
case $1 in
|
||||||
|
lex*|yacc*)
|
||||||
|
# Not GNU programs, they don't have --version.
|
||||||
|
;;
|
||||||
|
|
||||||
|
tar*)
|
||||||
|
if test -n "$run"; then
|
||||||
|
echo 1>&2 "ERROR: \`tar' requires --run"
|
||||||
|
exit 1
|
||||||
|
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
*)
|
||||||
|
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
|
||||||
|
# We have it, but it failed.
|
||||||
|
exit 1
|
||||||
|
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
|
||||||
|
# Could not run --version or --help. This is probably someone
|
||||||
|
# running `$TOOL --version' or `$TOOL --help' to check whether
|
||||||
|
# $TOOL exists and not knowing $TOOL uses missing.
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# If it does not exist, or fails to run (possibly an outdated version),
|
||||||
|
# try to emulate it.
|
||||||
|
case $program in
|
||||||
|
aclocal*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified \`acinclude.m4' or \`${configure_ac}'. You might want
|
||||||
|
to install the \`Automake' and \`Perl' packages. Grab them from
|
||||||
|
any GNU archive site."
|
||||||
|
touch aclocal.m4
|
||||||
|
;;
|
||||||
|
|
||||||
|
autoconf*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified \`${configure_ac}'. You might want to install the
|
||||||
|
\`Autoconf' and \`GNU m4' packages. Grab them from any GNU
|
||||||
|
archive site."
|
||||||
|
touch configure
|
||||||
|
;;
|
||||||
|
|
||||||
|
autoheader*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified \`acconfig.h' or \`${configure_ac}'. You might want
|
||||||
|
to install the \`Autoconf' and \`GNU m4' packages. Grab them
|
||||||
|
from any GNU archive site."
|
||||||
|
files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
|
||||||
|
test -z "$files" && files="config.h"
|
||||||
|
touch_files=
|
||||||
|
for f in $files; do
|
||||||
|
case $f in
|
||||||
|
*:*) touch_files="$touch_files "`echo "$f" |
|
||||||
|
sed -e 's/^[^:]*://' -e 's/:.*//'`;;
|
||||||
|
*) touch_files="$touch_files $f.in";;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
touch $touch_files
|
||||||
|
;;
|
||||||
|
|
||||||
|
automake*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
|
||||||
|
You might want to install the \`Automake' and \`Perl' packages.
|
||||||
|
Grab them from any GNU archive site."
|
||||||
|
find . -type f -name Makefile.am -print |
|
||||||
|
sed 's/\.am$/.in/' |
|
||||||
|
while read f; do touch "$f"; done
|
||||||
|
;;
|
||||||
|
|
||||||
|
autom4te*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is needed, but is $msg.
|
||||||
|
You might have modified some files without having the
|
||||||
|
proper tools for further handling them.
|
||||||
|
You can get \`$1' as part of \`Autoconf' from any GNU
|
||||||
|
archive site."
|
||||||
|
|
||||||
|
file=`echo "$*" | sed -n "$sed_output"`
|
||||||
|
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
|
||||||
|
if test -f "$file"; then
|
||||||
|
touch $file
|
||||||
|
else
|
||||||
|
test -z "$file" || exec >$file
|
||||||
|
echo "#! /bin/sh"
|
||||||
|
echo "# Created by GNU Automake missing as a replacement of"
|
||||||
|
echo "# $ $@"
|
||||||
|
echo "exit 0"
|
||||||
|
chmod +x $file
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
bison*|yacc*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' $msg. You should only need it if
|
||||||
|
you modified a \`.y' file. You may need the \`Bison' package
|
||||||
|
in order for those modifications to take effect. You can get
|
||||||
|
\`Bison' from any GNU archive site."
|
||||||
|
rm -f y.tab.c y.tab.h
|
||||||
|
if test $# -ne 1; then
|
||||||
|
eval LASTARG="\${$#}"
|
||||||
|
case $LASTARG in
|
||||||
|
*.y)
|
||||||
|
SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
|
||||||
|
if test -f "$SRCFILE"; then
|
||||||
|
cp "$SRCFILE" y.tab.c
|
||||||
|
fi
|
||||||
|
SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
|
||||||
|
if test -f "$SRCFILE"; then
|
||||||
|
cp "$SRCFILE" y.tab.h
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
if test ! -f y.tab.h; then
|
||||||
|
echo >y.tab.h
|
||||||
|
fi
|
||||||
|
if test ! -f y.tab.c; then
|
||||||
|
echo 'main() { return 0; }' >y.tab.c
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
lex*|flex*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified a \`.l' file. You may need the \`Flex' package
|
||||||
|
in order for those modifications to take effect. You can get
|
||||||
|
\`Flex' from any GNU archive site."
|
||||||
|
rm -f lex.yy.c
|
||||||
|
if test $# -ne 1; then
|
||||||
|
eval LASTARG="\${$#}"
|
||||||
|
case $LASTARG in
|
||||||
|
*.l)
|
||||||
|
SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
|
||||||
|
if test -f "$SRCFILE"; then
|
||||||
|
cp "$SRCFILE" lex.yy.c
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
if test ! -f lex.yy.c; then
|
||||||
|
echo 'main() { return 0; }' >lex.yy.c
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
help2man*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified a dependency of a manual page. You may need the
|
||||||
|
\`Help2man' package in order for those modifications to take
|
||||||
|
effect. You can get \`Help2man' from any GNU archive site."
|
||||||
|
|
||||||
|
file=`echo "$*" | sed -n "$sed_output"`
|
||||||
|
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
|
||||||
|
if test -f "$file"; then
|
||||||
|
touch $file
|
||||||
|
else
|
||||||
|
test -z "$file" || exec >$file
|
||||||
|
echo ".ab help2man is required to generate this page"
|
||||||
|
exit $?
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
|
||||||
|
makeinfo*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is $msg. You should only need it if
|
||||||
|
you modified a \`.texi' or \`.texinfo' file, or any other file
|
||||||
|
indirectly affecting the aspect of the manual. The spurious
|
||||||
|
call might also be the consequence of using a buggy \`make' (AIX,
|
||||||
|
DU, IRIX). You might want to install the \`Texinfo' package or
|
||||||
|
the \`GNU make' package. Grab either from any GNU archive site."
|
||||||
|
# The file to touch is that specified with -o ...
|
||||||
|
file=`echo "$*" | sed -n "$sed_output"`
|
||||||
|
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
|
||||||
|
if test -z "$file"; then
|
||||||
|
# ... or it is the one specified with @setfilename ...
|
||||||
|
infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
|
||||||
|
file=`sed -n '
|
||||||
|
/^@setfilename/{
|
||||||
|
s/.* \([^ ]*\) *$/\1/
|
||||||
|
p
|
||||||
|
q
|
||||||
|
}' $infile`
|
||||||
|
# ... or it is derived from the source name (dir/f.texi becomes f.info)
|
||||||
|
test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
|
||||||
|
fi
|
||||||
|
# If the file does not exist, the user really needs makeinfo;
|
||||||
|
# let's fail without touching anything.
|
||||||
|
test -f $file || exit 1
|
||||||
|
touch $file
|
||||||
|
;;
|
||||||
|
|
||||||
|
tar*)
|
||||||
|
shift
|
||||||
|
|
||||||
|
# We have already tried tar in the generic part.
|
||||||
|
# Look for gnutar/gtar before invocation to avoid ugly error
|
||||||
|
# messages.
|
||||||
|
if (gnutar --version > /dev/null 2>&1); then
|
||||||
|
gnutar "$@" && exit 0
|
||||||
|
fi
|
||||||
|
if (gtar --version > /dev/null 2>&1); then
|
||||||
|
gtar "$@" && exit 0
|
||||||
|
fi
|
||||||
|
firstarg="$1"
|
||||||
|
if shift; then
|
||||||
|
case $firstarg in
|
||||||
|
*o*)
|
||||||
|
firstarg=`echo "$firstarg" | sed s/o//`
|
||||||
|
tar "$firstarg" "$@" && exit 0
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
case $firstarg in
|
||||||
|
*h*)
|
||||||
|
firstarg=`echo "$firstarg" | sed s/h//`
|
||||||
|
tar "$firstarg" "$@" && exit 0
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: I can't seem to be able to run \`tar' with the given arguments.
|
||||||
|
You may want to install GNU tar or Free paxutils, or check the
|
||||||
|
command line arguments."
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
|
||||||
|
*)
|
||||||
|
echo 1>&2 "\
|
||||||
|
WARNING: \`$1' is needed, and is $msg.
|
||||||
|
You might have modified some files without having the
|
||||||
|
proper tools for further handling them. Check the \`README' file,
|
||||||
|
it often tells you about the needed prerequisites for installing
|
||||||
|
this package. You may also peek at any GNU archive site, in case
|
||||||
|
some other package would contain this missing \`$1' program."
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
exit 0
|
||||||
|
|
||||||
|
# Local variables:
|
||||||
|
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||||
|
# time-stamp-start: "scriptversion="
|
||||||
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||||
|
# time-stamp-time-zone: "UTC"
|
||||||
|
# time-stamp-end: "; # UTC"
|
||||||
|
# End:
|
||||||
976
nat64.c
Normal file
976
nat64.c
Normal file
|
|
@ -0,0 +1,976 @@
|
||||||
|
/*
|
||||||
|
* nat64.c -- IPv4/IPv6 header rewriting routines
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <tayga.h>
|
||||||
|
|
||||||
|
extern struct config *gcfg;
|
||||||
|
|
||||||
|
static uint16_t ip_checksum(void *d, int c)
|
||||||
|
{
|
||||||
|
uint32_t sum = 0xffff;
|
||||||
|
uint16_t *p = d;
|
||||||
|
|
||||||
|
while (c > 1) {
|
||||||
|
sum += *p++;
|
||||||
|
c -= 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (c)
|
||||||
|
sum += htons(*((uint8_t *)p) << 8);
|
||||||
|
|
||||||
|
while (sum > 0xffff)
|
||||||
|
sum = (sum & 0xffff) + (sum >> 16);
|
||||||
|
|
||||||
|
return ~sum;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint16_t ones_add(uint16_t a, uint16_t b)
|
||||||
|
{
|
||||||
|
uint32_t sum = (uint16_t)~a + (uint16_t)~b;
|
||||||
|
|
||||||
|
return ~((sum & 0xffff) + (sum >> 16));
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint16_t ip6_checksum(struct ip6 *ip6, uint32_t data_len, uint8_t proto)
|
||||||
|
{
|
||||||
|
uint32_t sum = 0;
|
||||||
|
uint16_t *p;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0, p = ip6->src.s6_addr16; i < 16; ++i)
|
||||||
|
sum += *p++;
|
||||||
|
sum += htonl(data_len) >> 16;
|
||||||
|
sum += htonl(data_len) & 0xffff;
|
||||||
|
sum += htons(proto);
|
||||||
|
|
||||||
|
while (sum > 0xffff)
|
||||||
|
sum = (sum & 0xffff) + (sum >> 16);
|
||||||
|
|
||||||
|
return ~sum;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint16_t convert_cksum(struct ip6 *ip6, struct ip4 *ip4)
|
||||||
|
{
|
||||||
|
uint32_t sum = 0;
|
||||||
|
uint16_t *p;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
sum += ~ip4->src.s_addr >> 16;
|
||||||
|
sum += ~ip4->src.s_addr & 0xffff;
|
||||||
|
sum += ~ip4->dest.s_addr >> 16;
|
||||||
|
sum += ~ip4->dest.s_addr & 0xffff;
|
||||||
|
|
||||||
|
for (i = 0, p = ip6->src.s6_addr16; i < 16; ++i)
|
||||||
|
sum += *p++;
|
||||||
|
|
||||||
|
while (sum > 0xffff)
|
||||||
|
sum = (sum & 0xffff) + (sum >> 16);
|
||||||
|
|
||||||
|
return sum;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_send_icmp4(uint8_t tos, struct in_addr *src,
|
||||||
|
struct in_addr *dest, struct icmp *icmp,
|
||||||
|
uint8_t *data, int data_len)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip4 ip4;
|
||||||
|
struct icmp icmp;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct iovec iov[2];
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IP);
|
||||||
|
header.ip4.ver_ihl = 0x45;
|
||||||
|
header.ip4.tos = tos;
|
||||||
|
header.ip4.length = htons(sizeof(header.ip4) + sizeof(header.icmp) +
|
||||||
|
data_len);
|
||||||
|
header.ip4.ident = 0;
|
||||||
|
header.ip4.flags_offset = 0;
|
||||||
|
header.ip4.ttl = 64;
|
||||||
|
header.ip4.proto = 1;
|
||||||
|
header.ip4.cksum = 0;
|
||||||
|
header.ip4.src = *src;
|
||||||
|
header.ip4.dest = *dest;
|
||||||
|
header.ip4.cksum = ip_checksum(&header.ip4, sizeof(header.ip4));
|
||||||
|
header.icmp = *icmp;
|
||||||
|
header.icmp.cksum = 0;
|
||||||
|
header.icmp.cksum = ones_add(ip_checksum(data, data_len),
|
||||||
|
ip_checksum(&header.icmp, sizeof(header.icmp)));
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
iov[1].iov_base = data;
|
||||||
|
iov[1].iov_len = data_len;
|
||||||
|
if (writev(gcfg->tun_fd, iov, data_len ? 2 : 1) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_send_icmp4_error(uint8_t type, uint8_t code, uint32_t word,
|
||||||
|
struct pkt *orig)
|
||||||
|
{
|
||||||
|
struct icmp icmp;
|
||||||
|
int orig_len;
|
||||||
|
|
||||||
|
/* Don't send ICMP errors in response to ICMP messages other than
|
||||||
|
echo request */
|
||||||
|
if (orig->data_proto == 1 && orig->icmp->type != 8)
|
||||||
|
return;
|
||||||
|
|
||||||
|
orig_len = orig->header_len + orig->data_len;
|
||||||
|
if (orig_len > 576 - sizeof(struct ip4) - sizeof(struct icmp))
|
||||||
|
orig_len = 576 - sizeof(struct ip4) - sizeof(struct icmp);
|
||||||
|
icmp.type = type;
|
||||||
|
icmp.code = code;
|
||||||
|
icmp.word = htonl(word);
|
||||||
|
host_send_icmp4(0, &gcfg->local_addr4, &orig->ip4->src, &icmp,
|
||||||
|
(uint8_t *)orig->ip4, orig_len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_handle_icmp4(struct pkt *p)
|
||||||
|
{
|
||||||
|
p->data += sizeof(struct icmp);
|
||||||
|
p->data_len -= sizeof(struct icmp);
|
||||||
|
|
||||||
|
switch (p->icmp->type) {
|
||||||
|
case 8:
|
||||||
|
p->icmp->type = 0;
|
||||||
|
host_send_icmp4(p->ip4->tos, &p->ip4->dest, &p->ip4->src,
|
||||||
|
p->icmp, p->data, p->data_len);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_header_4to6(struct pkt *p, struct ip6 *ip6,
|
||||||
|
int payload_length)
|
||||||
|
{
|
||||||
|
ip6->ver_tc_fl = htonl((0x6 << 28) | (p->ip4->tos << 20));
|
||||||
|
ip6->payload_length = htons(payload_length);
|
||||||
|
ip6->next_header = p->data_proto == 1 ? 58 : p->data_proto;
|
||||||
|
ip6->hop_limit = p->ip4->ttl;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int xlate_payload_4to6(struct pkt *p, struct ip6 *ip6)
|
||||||
|
{
|
||||||
|
uint16_t *tck;
|
||||||
|
uint16_t cksum;
|
||||||
|
|
||||||
|
if (p->ip4->flags_offset & htons(IP4_F_MASK))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
switch (p->data_proto) {
|
||||||
|
case 1:
|
||||||
|
cksum = ip6_checksum(ip6, htons(p->ip4->length) -
|
||||||
|
p->header_len, 58);
|
||||||
|
cksum = ones_add(p->icmp->cksum, cksum);
|
||||||
|
if (p->icmp->type == 8) {
|
||||||
|
p->icmp->type = 128;
|
||||||
|
p->icmp->cksum = ones_add(cksum, ~(128 - 8));
|
||||||
|
} else {
|
||||||
|
p->icmp->type = 129;
|
||||||
|
p->icmp->cksum = ones_add(cksum, ~(129 - 0));
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
case 17:
|
||||||
|
if (p->data_len < 8)
|
||||||
|
return -1;
|
||||||
|
tck = (uint16_t *)(p->data + 6);
|
||||||
|
if (!*tck)
|
||||||
|
return -1; /* drop UDP packets with no checksum */
|
||||||
|
break;
|
||||||
|
case 6:
|
||||||
|
if (p->data_len < 20)
|
||||||
|
return -1;
|
||||||
|
tck = (uint16_t *)(p->data + 16);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
*tck = ones_add(*tck, ~convert_cksum(ip6, p->ip4));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_4to6_data(struct pkt *p)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip6 ip6;
|
||||||
|
struct ip6_frag ip6_frag;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct cache_entry *src = NULL, *dest = NULL;
|
||||||
|
struct iovec iov[2];
|
||||||
|
int no_frag_hdr = 0;
|
||||||
|
uint16_t off = ntohs(p->ip4->flags_offset);
|
||||||
|
int frag_size;
|
||||||
|
|
||||||
|
frag_size = gcfg->ipv6_offlink_mtu;
|
||||||
|
if (frag_size > gcfg->mtu)
|
||||||
|
frag_size = gcfg->mtu;
|
||||||
|
frag_size -= sizeof(struct ip6);
|
||||||
|
|
||||||
|
if (map_ip4_to_ip6(&header.ip6.dest, &p->ip4->dest, &dest)) {
|
||||||
|
host_send_icmp4_error(3, 1, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (map_ip4_to_ip6(&header.ip6.src, &p->ip4->src, &src)) {
|
||||||
|
host_send_icmp4_error(3, 10, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* We do not respect the DF flag for IP4 packets that are already
|
||||||
|
fragmented, because the IP6 fragmentation header takes an extra
|
||||||
|
eight bytes, which we don't have space for because the IP4 source
|
||||||
|
thinks the MTU is only 20 bytes smaller than the actual MTU on
|
||||||
|
the IP6 side. (E.g. if the IP6 MTU is 1496, the IP4 source thinks
|
||||||
|
the path MTU is 1476, which means it sends fragments with 1456
|
||||||
|
bytes of fragmented payload. Translating this to IP6 requires
|
||||||
|
40 bytes of IP6 header + 8 bytes of fragmentation header +
|
||||||
|
1456 bytes of payload == 1504 bytes.) */
|
||||||
|
if ((off & (IP4_F_MASK | IP4_F_MF)) == 0) {
|
||||||
|
if (off & IP4_F_DF) {
|
||||||
|
if (gcfg->mtu - MTU_ADJ < p->header_len + p->data_len) {
|
||||||
|
host_send_icmp4_error(3, 4,
|
||||||
|
gcfg->mtu - MTU_ADJ, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
no_frag_hdr = 1;
|
||||||
|
} else if (gcfg->lazy_frag_hdr && p->data_len <= frag_size) {
|
||||||
|
no_frag_hdr = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
xlate_header_4to6(p, &header.ip6, p->data_len);
|
||||||
|
--header.ip6.hop_limit;
|
||||||
|
|
||||||
|
if (xlate_payload_4to6(p, &header.ip6) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (src)
|
||||||
|
src->flags |= CACHE_F_SEEN_4TO6;
|
||||||
|
if (dest)
|
||||||
|
dest->flags |= CACHE_F_SEEN_4TO6;
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IPV6);
|
||||||
|
|
||||||
|
if (no_frag_hdr) {
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(struct tun_pi) + sizeof(struct ip6);
|
||||||
|
iov[1].iov_base = p->data;
|
||||||
|
iov[1].iov_len = p->data_len;
|
||||||
|
|
||||||
|
if (writev(gcfg->tun_fd, iov, 2) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun "
|
||||||
|
"device: %s\n", strerror(errno));
|
||||||
|
} else {
|
||||||
|
header.ip6_frag.next_header = header.ip6.next_header;
|
||||||
|
header.ip6_frag.reserved = 0;
|
||||||
|
header.ip6_frag.ident = htonl(ntohs(p->ip4->ident));
|
||||||
|
|
||||||
|
header.ip6.next_header = 44;
|
||||||
|
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
|
||||||
|
off = (off & IP4_F_MASK) * 8;
|
||||||
|
frag_size = (frag_size - sizeof(header.ip6_frag)) & ~7;
|
||||||
|
|
||||||
|
while (p->data_len > 0) {
|
||||||
|
if (p->data_len < frag_size)
|
||||||
|
frag_size = p->data_len;
|
||||||
|
|
||||||
|
header.ip6.payload_length =
|
||||||
|
htons(sizeof(struct ip6_frag) + frag_size);
|
||||||
|
header.ip6_frag.offset_flags = htons(off);
|
||||||
|
|
||||||
|
iov[1].iov_base = p->data;
|
||||||
|
iov[1].iov_len = frag_size;
|
||||||
|
|
||||||
|
p->data += frag_size;
|
||||||
|
p->data_len -= frag_size;
|
||||||
|
off += frag_size;
|
||||||
|
|
||||||
|
if (p->data_len || (p->ip4->flags_offset &
|
||||||
|
htons(IP4_F_MF)))
|
||||||
|
header.ip6_frag.offset_flags |= htons(IP6_F_MF);
|
||||||
|
|
||||||
|
if (writev(gcfg->tun_fd, iov, 2) < 0) {
|
||||||
|
slog(LOG_WARNING, "error writing packet to "
|
||||||
|
"tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int parse_ip4(struct pkt *p)
|
||||||
|
{
|
||||||
|
p->ip4 = (struct ip4 *)(p->data);
|
||||||
|
|
||||||
|
if (p->data_len < sizeof(struct ip4))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
p->header_len = (p->ip4->ver_ihl & 0x0f) * 4;
|
||||||
|
|
||||||
|
if ((p->ip4->ver_ihl >> 4) != 4 || p->header_len < sizeof(struct ip4) ||
|
||||||
|
p->data_len < p->header_len ||
|
||||||
|
ntohs(p->ip4->length) < p->header_len ||
|
||||||
|
validate_ip4_addr(&p->ip4->src) ||
|
||||||
|
validate_ip4_addr(&p->ip4->dest))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if (p->data_len > ntohs(p->ip4->length))
|
||||||
|
p->data_len = ntohs(p->ip4->length);
|
||||||
|
|
||||||
|
p->data += p->header_len;
|
||||||
|
p->data_len -= p->header_len;
|
||||||
|
p->data_proto = p->ip4->proto;
|
||||||
|
|
||||||
|
if (p->data_proto == 1) {
|
||||||
|
if (p->ip4->flags_offset & htons(IP4_F_MASK | IP4_F_MF))
|
||||||
|
return -1; /* fragmented ICMP is unsupported */
|
||||||
|
if (p->data_len < sizeof(struct icmp))
|
||||||
|
return -1;
|
||||||
|
p->icmp = (struct icmp *)(p->data);
|
||||||
|
} else {
|
||||||
|
if ((p->ip4->flags_offset & htons(IP4_F_MF)) &&
|
||||||
|
(p->data_len & 0x7))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if ((uint32_t)((ntohs(p->ip4->flags_offset) & IP4_F_MASK) * 8) +
|
||||||
|
p->data_len > 65535)
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Estimates the most likely MTU of the link that the datagram in question was
|
||||||
|
* too large to fit through, using the algorithm from RFC 1191. */
|
||||||
|
static unsigned int est_mtu(unsigned int too_big)
|
||||||
|
{
|
||||||
|
static const unsigned int table[] = {
|
||||||
|
65535, 32000, 17914, 8166, 4352, 2002, 1492, 1006, 508, 296, 0
|
||||||
|
};
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0; table[i]; ++i)
|
||||||
|
if (too_big > table[i])
|
||||||
|
return table[i];
|
||||||
|
return 68;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_4to6_icmp_error(struct pkt *p)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip6 ip6;
|
||||||
|
struct icmp icmp;
|
||||||
|
struct ip6 ip6_em;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct iovec iov[2];
|
||||||
|
struct pkt p_em;
|
||||||
|
uint32_t mtu;
|
||||||
|
uint16_t em_len;
|
||||||
|
int allow_fake_source = 0;
|
||||||
|
struct cache_entry *orig_dest = NULL;
|
||||||
|
|
||||||
|
memset(&p_em, 0, sizeof(p_em));
|
||||||
|
p_em.data = p->data + sizeof(struct icmp);
|
||||||
|
p_em.data_len = p->data_len - sizeof(struct icmp);
|
||||||
|
|
||||||
|
if (p->icmp->type == 3 || p->icmp->type == 11 || p->icmp->type == 12) {
|
||||||
|
em_len = (ntohl(p->icmp->word) >> 14) & 0x3fc;
|
||||||
|
if (em_len) {
|
||||||
|
if (p_em.data_len < em_len)
|
||||||
|
return;
|
||||||
|
p_em.data_len = em_len;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (parse_ip4(&p_em) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (p_em.data_proto == 1 && p_em.icmp->type != 8)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (sizeof(struct ip6) * 2 + sizeof(struct icmp) + p_em.data_len > 1280)
|
||||||
|
p_em.data_len = 1280 - sizeof(struct ip6) * 2 -
|
||||||
|
sizeof(struct icmp);
|
||||||
|
|
||||||
|
if (map_ip4_to_ip6(&header.ip6_em.src, &p_em.ip4->src, NULL) ||
|
||||||
|
map_ip4_to_ip6(&header.ip6_em.dest,
|
||||||
|
&p_em.ip4->dest, &orig_dest))
|
||||||
|
return;
|
||||||
|
|
||||||
|
xlate_header_4to6(&p_em, &header.ip6_em,
|
||||||
|
ntohs(p_em.ip4->length) - p_em.header_len);
|
||||||
|
|
||||||
|
switch (p->icmp->type) {
|
||||||
|
case 3: /* Destination Unreachable */
|
||||||
|
header.icmp.type = 1; /* Destination Unreachable */
|
||||||
|
header.icmp.word = 0;
|
||||||
|
switch (p->icmp->code) {
|
||||||
|
case 0: /* Network Unreachable */
|
||||||
|
case 1: /* Host Unreachable */
|
||||||
|
case 5: /* Source Route Failed */
|
||||||
|
case 6:
|
||||||
|
case 7:
|
||||||
|
case 8:
|
||||||
|
case 11:
|
||||||
|
case 12:
|
||||||
|
header.icmp.code = 0; /* No route to destination */
|
||||||
|
allow_fake_source = 1;
|
||||||
|
break;
|
||||||
|
case 2: /* Protocol Unreachable */
|
||||||
|
header.icmp.type = 4;
|
||||||
|
header.icmp.code = 1;
|
||||||
|
header.icmp.word = htonl(6);
|
||||||
|
break;
|
||||||
|
case 3: /* Port Unreachable */
|
||||||
|
header.icmp.code = 4; /* Port Unreachable */
|
||||||
|
break;
|
||||||
|
case 4: /* Fragmentation needed and DF set */
|
||||||
|
header.icmp.type = 2;
|
||||||
|
header.icmp.code = 0;
|
||||||
|
mtu = ntohl(p->icmp->word) & 0xffff;
|
||||||
|
if (mtu < 68)
|
||||||
|
mtu = est_mtu(ntohs(p_em.ip4->length));
|
||||||
|
mtu += MTU_ADJ;
|
||||||
|
if (mtu > gcfg->mtu)
|
||||||
|
mtu = gcfg->mtu;
|
||||||
|
if (mtu < 1280 && gcfg->allow_ident_gen && orig_dest) {
|
||||||
|
orig_dest->flags |= CACHE_F_GEN_IDENT;
|
||||||
|
mtu = 1280;
|
||||||
|
}
|
||||||
|
header.icmp.word = htonl(mtu);
|
||||||
|
allow_fake_source = 1;
|
||||||
|
break;
|
||||||
|
case 9:
|
||||||
|
case 10:
|
||||||
|
case 13:
|
||||||
|
case 15:
|
||||||
|
header.icmp.code = 1; /* Administratively prohibited */
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 11: /* Time Exceeded */
|
||||||
|
header.icmp.type = 3; /* Time Exceeded */
|
||||||
|
header.icmp.code = p->icmp->code;
|
||||||
|
header.icmp.word = 0;
|
||||||
|
break;
|
||||||
|
case 12: /* Parameter Problem */
|
||||||
|
if (p->icmp->code != 0 && p->icmp->code != 2)
|
||||||
|
return;
|
||||||
|
header.icmp.type = 4;
|
||||||
|
header.icmp.code = 0;
|
||||||
|
/* XXX do this and remove return */
|
||||||
|
return;
|
||||||
|
default:
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (xlate_payload_4to6(&p_em, &header.ip6_em) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (map_ip4_to_ip6(&header.ip6.src, &p->ip4->src, NULL)) {
|
||||||
|
if (allow_fake_source)
|
||||||
|
header.ip6.src = gcfg->local_addr6;
|
||||||
|
else
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (map_ip4_to_ip6(&header.ip6.dest, &p->ip4->dest, NULL))
|
||||||
|
return;
|
||||||
|
|
||||||
|
xlate_header_4to6(p, &header.ip6,
|
||||||
|
sizeof(header.icmp) + sizeof(header.ip6_em) + p_em.data_len);
|
||||||
|
--header.ip6.hop_limit;
|
||||||
|
|
||||||
|
header.icmp.cksum = 0;
|
||||||
|
header.icmp.cksum = ones_add(ip6_checksum(&header.ip6,
|
||||||
|
ntohs(header.ip6.payload_length), 58),
|
||||||
|
ones_add(ip_checksum(&header.icmp,
|
||||||
|
sizeof(header.icmp) +
|
||||||
|
sizeof(header.ip6_em)),
|
||||||
|
ip_checksum(p_em.data, p_em.data_len)));
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IPV6);
|
||||||
|
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
iov[1].iov_base = p_em.data;
|
||||||
|
iov[1].iov_len = p_em.data_len;
|
||||||
|
|
||||||
|
if (writev(gcfg->tun_fd, iov, 2) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
void handle_ip4(struct pkt *p)
|
||||||
|
{
|
||||||
|
if (parse_ip4(p) < 0 || p->ip4->ttl == 0 ||
|
||||||
|
ip_checksum(p->ip4, p->header_len) ||
|
||||||
|
p->header_len + p->data_len != ntohs(p->ip4->length))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (p->icmp && ip_checksum(p->data, p->data_len))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (p->ip4->dest.s_addr == gcfg->local_addr4.s_addr) {
|
||||||
|
if (p->data_proto == 1)
|
||||||
|
host_handle_icmp4(p);
|
||||||
|
else
|
||||||
|
host_send_icmp4_error(3, 2, 0, p);
|
||||||
|
} else {
|
||||||
|
if (p->ip4->ttl == 1) {
|
||||||
|
host_send_icmp4_error(11, 0, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (p->data_proto != 1 || p->icmp->type == 8 ||
|
||||||
|
p->icmp->type == 0)
|
||||||
|
xlate_4to6_data(p);
|
||||||
|
else
|
||||||
|
xlate_4to6_icmp_error(p);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_send_icmp6(uint8_t tc, struct in6_addr *src,
|
||||||
|
struct in6_addr *dest, struct icmp *icmp,
|
||||||
|
uint8_t *data, int data_len)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip6 ip6;
|
||||||
|
struct icmp icmp;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct iovec iov[2];
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IPV6);
|
||||||
|
header.ip6.ver_tc_fl = htonl((0x6 << 28) | (tc << 20));
|
||||||
|
header.ip6.payload_length = htons(sizeof(header.icmp) + data_len);
|
||||||
|
header.ip6.next_header = 58;
|
||||||
|
header.ip6.hop_limit = 64;
|
||||||
|
header.ip6.src = *src;
|
||||||
|
header.ip6.dest = *dest;
|
||||||
|
header.icmp = *icmp;
|
||||||
|
header.icmp.cksum = 0;
|
||||||
|
header.icmp.cksum = ones_add(ip_checksum(data, data_len),
|
||||||
|
ip_checksum(&header.icmp, sizeof(header.icmp)));
|
||||||
|
header.icmp.cksum = ones_add(header.icmp.cksum,
|
||||||
|
ip6_checksum(&header.ip6,
|
||||||
|
data_len + sizeof(header.icmp), 58));
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
iov[1].iov_base = data;
|
||||||
|
iov[1].iov_len = data_len;
|
||||||
|
if (writev(gcfg->tun_fd, iov, data_len ? 2 : 1) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_send_icmp6_error(uint8_t type, uint8_t code, uint32_t word,
|
||||||
|
struct pkt *orig)
|
||||||
|
{
|
||||||
|
struct icmp icmp;
|
||||||
|
int orig_len;
|
||||||
|
|
||||||
|
/* Don't send ICMP errors in response to ICMP messages other than
|
||||||
|
echo request */
|
||||||
|
if (orig->data_proto == 58 && orig->icmp->type != 128)
|
||||||
|
return;
|
||||||
|
|
||||||
|
orig_len = sizeof(struct ip6) + orig->header_len + orig->data_len;
|
||||||
|
if (orig_len > 1280 - sizeof(struct ip6) - sizeof(struct icmp))
|
||||||
|
orig_len = 1280 - sizeof(struct ip6) - sizeof(struct icmp);
|
||||||
|
icmp.type = type;
|
||||||
|
icmp.code = code;
|
||||||
|
icmp.word = htonl(word);
|
||||||
|
host_send_icmp6(0, &gcfg->local_addr6, &orig->ip6->src, &icmp,
|
||||||
|
(uint8_t *)orig->ip6, orig_len);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void host_handle_icmp6(struct pkt *p)
|
||||||
|
{
|
||||||
|
p->data += sizeof(struct icmp);
|
||||||
|
p->data_len -= sizeof(struct icmp);
|
||||||
|
|
||||||
|
switch (p->icmp->type) {
|
||||||
|
case 128:
|
||||||
|
p->icmp->type = 129;
|
||||||
|
host_send_icmp6((ntohl(p->ip6->ver_tc_fl) >> 20) & 0xff,
|
||||||
|
&p->ip6->dest, &p->ip6->src,
|
||||||
|
p->icmp, p->data, p->data_len);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_header_6to4(struct pkt *p, struct ip4 *ip4,
|
||||||
|
int payload_length, struct cache_entry *dest)
|
||||||
|
{
|
||||||
|
ip4->ver_ihl = 0x45;
|
||||||
|
ip4->tos = (ntohl(p->ip6->ver_tc_fl) >> 20) & 0xff;
|
||||||
|
ip4->length = htons(sizeof(struct ip4) + payload_length);
|
||||||
|
if (p->ip6_frag) {
|
||||||
|
ip4->ident = htons(ntohl(p->ip6_frag->ident) & 0xffff);
|
||||||
|
ip4->flags_offset =
|
||||||
|
htons(ntohs(p->ip6_frag->offset_flags) >> 3);
|
||||||
|
if (p->ip6_frag->offset_flags & htons(IP6_F_MF))
|
||||||
|
ip4->flags_offset |= htons(IP4_F_MF);
|
||||||
|
} else if (dest && (dest->flags & CACHE_F_GEN_IDENT) &&
|
||||||
|
p->header_len + payload_length <= 1280) {
|
||||||
|
ip4->ident = htons(dest->ip4_ident++);
|
||||||
|
ip4->flags_offset = 0;
|
||||||
|
if (dest->ip4_ident == 0)
|
||||||
|
dest->ip4_ident++;
|
||||||
|
} else {
|
||||||
|
ip4->ident = 0;
|
||||||
|
ip4->flags_offset = htons(IP4_F_DF);
|
||||||
|
}
|
||||||
|
ip4->ttl = p->ip6->hop_limit;
|
||||||
|
ip4->proto = p->data_proto == 58 ? 1 : p->data_proto;
|
||||||
|
ip4->cksum = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int xlate_payload_6to4(struct pkt *p, struct ip4 *ip4)
|
||||||
|
{
|
||||||
|
uint16_t *tck;
|
||||||
|
uint16_t cksum;
|
||||||
|
|
||||||
|
if (p->ip6_frag && (p->ip6_frag->offset_flags & ntohs(IP6_F_MASK)))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
switch (p->data_proto) {
|
||||||
|
case 58:
|
||||||
|
cksum = ~ip6_checksum(p->ip6, htons(p->ip6->payload_length) -
|
||||||
|
p->header_len, 58);
|
||||||
|
cksum = ones_add(p->icmp->cksum, cksum);
|
||||||
|
if (p->icmp->type == 128) {
|
||||||
|
p->icmp->type = 8;
|
||||||
|
p->icmp->cksum = ones_add(cksum, 128 - 8);
|
||||||
|
} else {
|
||||||
|
p->icmp->type = 0;
|
||||||
|
p->icmp->cksum = ones_add(cksum, 129 - 0);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
case 17:
|
||||||
|
if (p->data_len < 8)
|
||||||
|
return -1;
|
||||||
|
tck = (uint16_t *)(p->data + 6);
|
||||||
|
if (!*tck)
|
||||||
|
return -1; /* drop UDP packets with no checksum */
|
||||||
|
break;
|
||||||
|
case 6:
|
||||||
|
if (p->data_len < 20)
|
||||||
|
return -1;
|
||||||
|
tck = (uint16_t *)(p->data + 16);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
*tck = ones_add(*tck, convert_cksum(p->ip6, ip4));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_6to4_data(struct pkt *p)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip4 ip4;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct cache_entry *src = NULL, *dest = NULL;
|
||||||
|
struct iovec iov[2];
|
||||||
|
|
||||||
|
if (map_ip6_to_ip4(&header.ip4.dest, &p->ip6->dest, &dest, 0)) {
|
||||||
|
host_send_icmp6_error(1, 0, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (map_ip6_to_ip4(&header.ip4.src, &p->ip6->src, &src, 1)) {
|
||||||
|
host_send_icmp6_error(1, 5, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (sizeof(struct ip6) + p->header_len + p->data_len > gcfg->mtu) {
|
||||||
|
host_send_icmp6_error(2, 0, gcfg->mtu, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
xlate_header_6to4(p, &header.ip4, p->data_len, dest);
|
||||||
|
--header.ip4.ttl;
|
||||||
|
|
||||||
|
if (xlate_payload_6to4(p, &header.ip4) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (src)
|
||||||
|
src->flags |= CACHE_F_SEEN_6TO4;
|
||||||
|
if (dest)
|
||||||
|
dest->flags |= CACHE_F_SEEN_6TO4;
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IP);
|
||||||
|
|
||||||
|
header.ip4.cksum = ip_checksum(&header.ip4, sizeof(header.ip4));
|
||||||
|
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
iov[1].iov_base = p->data;
|
||||||
|
iov[1].iov_len = p->data_len;
|
||||||
|
|
||||||
|
if (writev(gcfg->tun_fd, iov, 2) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
static int parse_ip6(struct pkt *p)
|
||||||
|
{
|
||||||
|
int hdr_len;
|
||||||
|
|
||||||
|
p->ip6 = (struct ip6 *)(p->data);
|
||||||
|
|
||||||
|
if (p->data_len < sizeof(struct ip6) ||
|
||||||
|
(ntohl(p->ip6->ver_tc_fl) >> 28) != 6 ||
|
||||||
|
validate_ip6_addr(&p->ip6->src) ||
|
||||||
|
validate_ip6_addr(&p->ip6->dest))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
p->data_proto = p->ip6->next_header;
|
||||||
|
p->data += sizeof(struct ip6);
|
||||||
|
p->data_len -= sizeof(struct ip6);
|
||||||
|
|
||||||
|
if (p->data_len > ntohs(p->ip6->payload_length))
|
||||||
|
p->data_len = ntohs(p->ip6->payload_length);
|
||||||
|
|
||||||
|
while (p->data_proto == 0 || p->data_proto == 43 ||
|
||||||
|
p->data_proto == 60) {
|
||||||
|
if (p->data_len < 2)
|
||||||
|
return -1;
|
||||||
|
hdr_len = (p->data[1] + 1) * 8;
|
||||||
|
if (p->data_len < hdr_len)
|
||||||
|
return -1;
|
||||||
|
p->data_proto = p->data[0];
|
||||||
|
p->data += hdr_len;
|
||||||
|
p->data_len -= hdr_len;
|
||||||
|
p->header_len += hdr_len;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (p->data_proto == 44) {
|
||||||
|
if (p->ip6_frag || p->data_len < sizeof(struct ip6_frag))
|
||||||
|
return -1;
|
||||||
|
p->ip6_frag = (struct ip6_frag *)p->data;
|
||||||
|
p->data_proto = p->ip6_frag->next_header;
|
||||||
|
p->data += sizeof(struct ip6_frag);
|
||||||
|
p->data_len -= sizeof(struct ip6_frag);
|
||||||
|
p->header_len += sizeof(struct ip6_frag);
|
||||||
|
|
||||||
|
if ((p->ip6_frag->offset_flags & htons(IP6_F_MF)) &&
|
||||||
|
(p->data_len & 0x7))
|
||||||
|
return -1;
|
||||||
|
|
||||||
|
if ((uint32_t)(ntohs(p->ip6_frag->offset_flags) & IP6_F_MASK) +
|
||||||
|
p->data_len > 65535)
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (p->data_proto == 58) {
|
||||||
|
if (p->ip6_frag && (p->ip6_frag->offset_flags &
|
||||||
|
htons(IP6_F_MASK | IP6_F_MF)))
|
||||||
|
return -1; /* fragmented ICMP is unsupported */
|
||||||
|
if (p->data_len < sizeof(struct icmp))
|
||||||
|
return -1;
|
||||||
|
p->icmp = (struct icmp *)(p->data);
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void xlate_6to4_icmp_error(struct pkt *p)
|
||||||
|
{
|
||||||
|
struct {
|
||||||
|
struct tun_pi pi;
|
||||||
|
struct ip4 ip4;
|
||||||
|
struct icmp icmp;
|
||||||
|
struct ip4 ip4_em;
|
||||||
|
} __attribute__ ((__packed__)) header;
|
||||||
|
struct iovec iov[2];
|
||||||
|
struct pkt p_em;
|
||||||
|
uint32_t mtu;
|
||||||
|
uint16_t em_len;
|
||||||
|
int allow_fake_source = 0;
|
||||||
|
|
||||||
|
memset(&p_em, 0, sizeof(p_em));
|
||||||
|
p_em.data = p->data + sizeof(struct icmp);
|
||||||
|
p_em.data_len = p->data_len - sizeof(struct icmp);
|
||||||
|
|
||||||
|
if (p->icmp->type == 1 || p->icmp->type == 3) {
|
||||||
|
em_len = (ntohl(p->icmp->word) >> 21) & 0x7f8;
|
||||||
|
if (em_len) {
|
||||||
|
if (p_em.data_len < em_len)
|
||||||
|
return;
|
||||||
|
p_em.data_len = em_len;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (parse_ip6(&p_em) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (p_em.data_proto == 58 && p_em.icmp->type != 128)
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (sizeof(struct ip4) * 2 + sizeof(struct icmp) + p_em.data_len > 576)
|
||||||
|
p_em.data_len = 576 - sizeof(struct ip4) * 2 -
|
||||||
|
sizeof(struct icmp);
|
||||||
|
|
||||||
|
switch (p->icmp->type) {
|
||||||
|
case 1: /* Destination Unreachable */
|
||||||
|
header.icmp.type = 3; /* Destination Unreachable */
|
||||||
|
header.icmp.word = 0;
|
||||||
|
switch (p->icmp->code) {
|
||||||
|
case 0: /* No route to destination */
|
||||||
|
case 2: /* Beyond scope of source address */
|
||||||
|
header.icmp.code = 1; /* Host Unreachable */
|
||||||
|
allow_fake_source = 1;
|
||||||
|
break;
|
||||||
|
case 1: /* Administratively prohibited */
|
||||||
|
header.icmp.code = 10; /* Administratively prohibited */
|
||||||
|
break;
|
||||||
|
case 4: /* Port Unreachable */
|
||||||
|
header.icmp.code = 3; /* Port Unreachable */
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 2: /* Packet Too Big */
|
||||||
|
header.icmp.type = 3; /* Destination Unreachable */
|
||||||
|
header.icmp.code = 4; /* Fragmentation needed */
|
||||||
|
mtu = ntohl(p->icmp->word);
|
||||||
|
if (mtu < 68) {
|
||||||
|
slog(LOG_INFO, "no mtu in Packet Too Big message\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (mtu > gcfg->mtu)
|
||||||
|
mtu = gcfg->mtu;
|
||||||
|
mtu -= MTU_ADJ;
|
||||||
|
header.icmp.word = htonl(mtu);
|
||||||
|
allow_fake_source = 1;
|
||||||
|
break;
|
||||||
|
case 3: /* Time Exceeded */
|
||||||
|
header.icmp.type = 11; /* Time Exceeded */
|
||||||
|
header.icmp.code = p->icmp->code;
|
||||||
|
header.icmp.word = 0;
|
||||||
|
break;
|
||||||
|
case 4: /* Parameter Problem */
|
||||||
|
if (p->icmp->code == 1) {
|
||||||
|
header.icmp.type = 3; /* Destination Unreachable */
|
||||||
|
header.icmp.code = 2; /* Protocol Unreachable */
|
||||||
|
header.icmp.word = 0;
|
||||||
|
break;
|
||||||
|
} else if (p->icmp->code != 0) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
header.icmp.type = 12; /* Parameter Problem */
|
||||||
|
header.icmp.code = 0;
|
||||||
|
/* XXX do this and remove return */
|
||||||
|
return;
|
||||||
|
default:
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (map_ip6_to_ip4(&header.ip4_em.src, &p_em.ip6->src, NULL, 0) ||
|
||||||
|
map_ip6_to_ip4(&header.ip4_em.dest,
|
||||||
|
&p_em.ip6->dest, NULL, 0) ||
|
||||||
|
xlate_payload_6to4(&p_em, &header.ip4_em) < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
xlate_header_6to4(&p_em, &header.ip4_em,
|
||||||
|
ntohs(p_em.ip6->payload_length) - p_em.header_len, NULL);
|
||||||
|
|
||||||
|
header.ip4_em.cksum =
|
||||||
|
ip_checksum(&header.ip4_em, sizeof(header.ip4_em));
|
||||||
|
|
||||||
|
if (map_ip6_to_ip4(&header.ip4.src, &p->ip6->src, NULL, 0)) {
|
||||||
|
if (allow_fake_source)
|
||||||
|
header.ip4.src = gcfg->local_addr4;
|
||||||
|
else
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (map_ip6_to_ip4(&header.ip4.dest, &p->ip6->dest, NULL, 0))
|
||||||
|
return;
|
||||||
|
|
||||||
|
xlate_header_6to4(p, &header.ip4, sizeof(header.icmp) +
|
||||||
|
sizeof(header.ip4_em) + p_em.data_len, NULL);
|
||||||
|
--header.ip4.ttl;
|
||||||
|
|
||||||
|
header.ip4.cksum = ip_checksum(&header.ip4, sizeof(header.ip4));
|
||||||
|
|
||||||
|
header.icmp.cksum = 0;
|
||||||
|
header.icmp.cksum = ones_add(ip_checksum(&header.icmp,
|
||||||
|
sizeof(header.icmp) +
|
||||||
|
sizeof(header.ip4_em)),
|
||||||
|
ip_checksum(p_em.data, p_em.data_len));
|
||||||
|
|
||||||
|
header.pi.flags = 0;
|
||||||
|
header.pi.proto = htons(ETH_P_IP);
|
||||||
|
|
||||||
|
iov[0].iov_base = &header;
|
||||||
|
iov[0].iov_len = sizeof(header);
|
||||||
|
iov[1].iov_base = p_em.data;
|
||||||
|
iov[1].iov_len = p_em.data_len;
|
||||||
|
|
||||||
|
if (writev(gcfg->tun_fd, iov, 2) < 0)
|
||||||
|
slog(LOG_WARNING, "error writing packet to tun device: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
}
|
||||||
|
|
||||||
|
void handle_ip6(struct pkt *p)
|
||||||
|
{
|
||||||
|
if (parse_ip6(p) < 0 || p->ip6->hop_limit == 0 ||
|
||||||
|
p->header_len + p->data_len !=
|
||||||
|
ntohs(p->ip6->payload_length))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (p->icmp && ones_add(ip_checksum(p->data, p->data_len),
|
||||||
|
ip6_checksum(p->ip6, p->data_len, 58)))
|
||||||
|
return;
|
||||||
|
|
||||||
|
if (IN6_ARE_ADDR_EQUAL(&p->ip6->dest, &gcfg->local_addr6)) {
|
||||||
|
if (p->data_proto == 58)
|
||||||
|
host_handle_icmp6(p);
|
||||||
|
else
|
||||||
|
host_send_icmp6_error(4, 1, 6, p);
|
||||||
|
} else {
|
||||||
|
if (p->ip6->hop_limit == 1) {
|
||||||
|
host_send_icmp6_error(3, 0, 0, p);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (p->data_proto != 58 || p->icmp->type == 128 ||
|
||||||
|
p->icmp->type == 129)
|
||||||
|
xlate_6to4_data(p);
|
||||||
|
else
|
||||||
|
xlate_6to4_icmp_error(p);
|
||||||
|
}
|
||||||
|
}
|
||||||
102
tayga.8
Normal file
102
tayga.8
Normal file
|
|
@ -0,0 +1,102 @@
|
||||||
|
.TH TAYGA "8" "June 2011" "TAYGA 0.9.2" ""
|
||||||
|
|
||||||
|
.SH NAME
|
||||||
|
tayga \- stateless NAT64 daemon
|
||||||
|
|
||||||
|
.SH SYNOPSIS
|
||||||
|
.B tayga
|
||||||
|
.I [OPTION]...
|
||||||
|
.PP
|
||||||
|
.B "tayga \-\-mktun"
|
||||||
|
.I [OPTION]...
|
||||||
|
.PP
|
||||||
|
.B "tayga \-\-rmtun"
|
||||||
|
.I [OPTION]...
|
||||||
|
|
||||||
|
.SH DESCRIPTION
|
||||||
|
TAYGA is a stateless NAT64 daemon for Linux. Using the in-kernel TUN network
|
||||||
|
driver, TAYGA receives IPv4 and IPv6 packets from the host's network stack,
|
||||||
|
translates them to the other protocol, and then sends the translated packets
|
||||||
|
back to the host using the same TUN interface.
|
||||||
|
.P
|
||||||
|
Translation is compliant with IETF Internet-Draft
|
||||||
|
draft-ietf-behave-v6v4-xlate-23, and address mapping is performed in
|
||||||
|
accordance with RFC 6052. Optionally, TAYGA may be configured to dynamically
|
||||||
|
map IPv6 hosts to addresses drawn from a configured IPv4 address pool.
|
||||||
|
.P
|
||||||
|
As a stateless NAT, TAYGA requires a one-to-one mapping between IPv4 addresses
|
||||||
|
and IPv6 addresses. Mapping multiple IPv6 addresses onto a single IPv4
|
||||||
|
address can be achieved by mapping IPv6 addresses to private IPv4 addresses
|
||||||
|
with TAYGA and then using a stateful NAT44 (such as the iptables(8) MASQUERADE
|
||||||
|
target) to map the private IPv4 addresses onto the desired single IPv4 address.
|
||||||
|
.P
|
||||||
|
TAYGA's configuration is stored in the tayga.conf(5) file, which is usually
|
||||||
|
found in /etc/tayga.conf or /usr/local/etc/tayga.conf.
|
||||||
|
|
||||||
|
.SH INVOCATION
|
||||||
|
Without the
|
||||||
|
.B \-\-mktun
|
||||||
|
or
|
||||||
|
.B \-\-rmtun
|
||||||
|
options, the `tayga` executable runs as a daemon, translating packets as
|
||||||
|
described above.
|
||||||
|
.P
|
||||||
|
The
|
||||||
|
.B \-\-mktun
|
||||||
|
and
|
||||||
|
.B \-\-rmtun
|
||||||
|
options instruct TAYGA to create or destroy, respectively, its configured TUN
|
||||||
|
device as a "persistent" interface and then immediately exit.
|
||||||
|
.P
|
||||||
|
Persistent TUN devices remain present on the host system even when TAYGA is
|
||||||
|
not running. This allows host-side network parameters and firewall rules to
|
||||||
|
be configured prior to commencement of packet translation. This may simplify
|
||||||
|
network configuration on the host; for example, systems which use a
|
||||||
|
Debian-style /etc/network/interfaces file may configure TAYGA's TUN device at
|
||||||
|
boot by running `tayga --mktun` as a "pre-up" command and then configuring the
|
||||||
|
TUN device as any other network interface.
|
||||||
|
|
||||||
|
.SH OPTIONS
|
||||||
|
.TP
|
||||||
|
.BI "\-c " configfile " | \-\-config " configfile
|
||||||
|
Read configuration options from
|
||||||
|
.I configfile
|
||||||
|
.TP
|
||||||
|
.B \-d
|
||||||
|
Enable debug messages (enables
|
||||||
|
.B \-\-nodetach
|
||||||
|
as well)
|
||||||
|
.TP
|
||||||
|
.B "\-n | \-\-nodetach"
|
||||||
|
Do not detach from terminal
|
||||||
|
.TP
|
||||||
|
.BI "\-u " userid " | \-\-user " userid
|
||||||
|
Set uid to
|
||||||
|
.I userid
|
||||||
|
after initialization
|
||||||
|
.TP
|
||||||
|
.BI "\-g " groupid " | \-\-group " groupid
|
||||||
|
Set gid to
|
||||||
|
.I groupid
|
||||||
|
after initialization
|
||||||
|
.TP
|
||||||
|
.B "\-r | \-\-chroot"
|
||||||
|
chroot() to data\-dir (specified in config file)
|
||||||
|
.TP
|
||||||
|
.BI "\-p " pidfile " | \-\-pidfile " pidfile
|
||||||
|
Write process ID of daemon to
|
||||||
|
.I pidfile
|
||||||
|
.SH AUTHOR
|
||||||
|
Written by Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
.SH COPYRIGHT
|
||||||
|
Copyright \(co 2010 Nathan Lutchansky
|
||||||
|
.br
|
||||||
|
License GPLv2+: GNU GPL version 2 or later
|
||||||
|
.br
|
||||||
|
This is free software: you are free to change and redistribute it.
|
||||||
|
There is NO WARRANTY, to the extent permitted by law.
|
||||||
|
.SH "SEE ALSO"
|
||||||
|
|
||||||
|
.BR tayga.conf (5)
|
||||||
|
.br
|
||||||
|
.BR <http://www.litech.org/tayga/>
|
||||||
568
tayga.c
Normal file
568
tayga.c
Normal file
|
|
@ -0,0 +1,568 @@
|
||||||
|
/*
|
||||||
|
* tayga.c -- main server code
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <tayga.h>
|
||||||
|
|
||||||
|
#include <stdarg.h>
|
||||||
|
#include <signal.h>
|
||||||
|
#include <getopt.h>
|
||||||
|
#include <pwd.h>
|
||||||
|
#include <grp.h>
|
||||||
|
|
||||||
|
#define USAGE_TEXT \
|
||||||
|
"Usage: %s [-c|--config CONFIGFILE] [-d] [-n|--nodetach] [-u|--user USERID]\n" \
|
||||||
|
" [-g|--group GROUPID] [-r|--chroot] [-p|--pidfile PIDFILE]\n\n" \
|
||||||
|
"--config FILE : Read configuration options from FILE\n" \
|
||||||
|
"-d : Enable debug messages (implies --nodetach)\n" \
|
||||||
|
"--nodetach : Do not detach from terminal\n" \
|
||||||
|
"--user USERID : Set uid to USERID after initialization\n" \
|
||||||
|
"--group GROUPID : Set gid to GROUPID after initialization\n" \
|
||||||
|
"--chroot : chroot() to data-dir (specified in config file)\n\n" \
|
||||||
|
"--pidfile FILE : Write process ID of daemon to FILE\n"
|
||||||
|
|
||||||
|
extern struct config *gcfg;
|
||||||
|
time_t now;
|
||||||
|
|
||||||
|
static int signalfds[2];
|
||||||
|
static int use_stdout;
|
||||||
|
|
||||||
|
void slog(int priority, const char *format, ...)
|
||||||
|
{
|
||||||
|
va_list ap;
|
||||||
|
|
||||||
|
va_start(ap, format);
|
||||||
|
if (use_stdout)
|
||||||
|
vprintf(format, ap);
|
||||||
|
else if (priority != LOG_DEBUG)
|
||||||
|
vsyslog(priority, format, ap);
|
||||||
|
va_end(ap);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void set_nonblock(int fd)
|
||||||
|
{
|
||||||
|
int flags;
|
||||||
|
|
||||||
|
flags = fcntl(fd, F_GETFL);
|
||||||
|
if (flags < 0) {
|
||||||
|
slog(LOG_CRIT, "fcntl F_GETFL returned %s\n", strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
flags |= O_NONBLOCK;
|
||||||
|
if (fcntl(fd, F_SETFL, flags) < 0) {
|
||||||
|
slog(LOG_CRIT, "fcntl F_SETFL returned %s\n", strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void read_random_bytes(void *d, int len)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = read(gcfg->urandom_fd, d, len);
|
||||||
|
if (ret < 0) {
|
||||||
|
slog(LOG_CRIT, "read /dev/urandom returned %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (ret < len) {
|
||||||
|
slog(LOG_CRIT, "read /dev/urandom returned EOF\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void tun_setup(int do_mktun, int do_rmtun)
|
||||||
|
{
|
||||||
|
struct ifreq ifr;
|
||||||
|
int fd;
|
||||||
|
|
||||||
|
gcfg->tun_fd = open("/dev/net/tun", O_RDWR);
|
||||||
|
if (gcfg->tun_fd < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to open /dev/net/tun, aborting: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
memset(&ifr, 0, sizeof(ifr));
|
||||||
|
ifr.ifr_flags = IFF_TUN;
|
||||||
|
strcpy(ifr.ifr_name, gcfg->tundev);
|
||||||
|
if (ioctl(gcfg->tun_fd, TUNSETIFF, &ifr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to attach tun device %s, aborting: "
|
||||||
|
"%s\n", gcfg->tundev, strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (do_mktun) {
|
||||||
|
if (ioctl(gcfg->tun_fd, TUNSETPERSIST, 1) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to set persist flag on %s, "
|
||||||
|
"aborting: %s\n", gcfg->tundev,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (ioctl(gcfg->tun_fd, TUNSETOWNER, 0) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to set owner on %s, "
|
||||||
|
"aborting: %s\n", gcfg->tundev,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (ioctl(gcfg->tun_fd, TUNSETGROUP, 0) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to set group on %s, "
|
||||||
|
"aborting: %s\n", gcfg->tundev,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
slog(LOG_NOTICE, "Created persistent tun device %s\n",
|
||||||
|
gcfg->tundev);
|
||||||
|
return;
|
||||||
|
} else if (do_rmtun) {
|
||||||
|
if (ioctl(gcfg->tun_fd, TUNSETPERSIST, 0) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to clear persist flag on %s, "
|
||||||
|
"aborting: %s\n", gcfg->tundev,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
slog(LOG_NOTICE, "Removed persistent tun device %s\n",
|
||||||
|
gcfg->tundev);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
set_nonblock(gcfg->tun_fd);
|
||||||
|
|
||||||
|
fd = socket(PF_INET, SOCK_DGRAM, 0);
|
||||||
|
if (fd < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to create socket, aborting: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
memset(&ifr, 0, sizeof(ifr));
|
||||||
|
strcpy(ifr.ifr_name, gcfg->tundev);
|
||||||
|
if (ioctl(fd, SIOCGIFMTU, &ifr) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to query MTU, aborting: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
close(fd);
|
||||||
|
|
||||||
|
gcfg->mtu = ifr.ifr_mtu;
|
||||||
|
|
||||||
|
slog(LOG_INFO, "Using tun device %s with MTU %d\n", gcfg->tundev,
|
||||||
|
gcfg->mtu);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void signal_handler(int signal)
|
||||||
|
{
|
||||||
|
write(signalfds[1], &signal, sizeof(signal));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void signal_setup(void)
|
||||||
|
{
|
||||||
|
struct sigaction act;
|
||||||
|
|
||||||
|
if (pipe(signalfds) < 0) {
|
||||||
|
slog(LOG_INFO, "unable to create signal pipe, aborting: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
set_nonblock(signalfds[0]);
|
||||||
|
set_nonblock(signalfds[1]);
|
||||||
|
memset(&act, 0, sizeof(act));
|
||||||
|
act.sa_handler = signal_handler;
|
||||||
|
sigaction(SIGINT, &act, NULL);
|
||||||
|
sigaction(SIGHUP, &act, NULL);
|
||||||
|
sigaction(SIGUSR1, &act, NULL);
|
||||||
|
sigaction(SIGUSR2, &act, NULL);
|
||||||
|
sigaction(SIGQUIT, &act, NULL);
|
||||||
|
sigaction(SIGTERM, &act, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void read_from_tun(void)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
struct tun_pi *pi = (struct tun_pi *)gcfg->recv_buf;
|
||||||
|
struct pkt pbuf, *p = &pbuf;
|
||||||
|
|
||||||
|
ret = read(gcfg->tun_fd, gcfg->recv_buf, gcfg->recv_buf_size);
|
||||||
|
if (ret < 0) {
|
||||||
|
if (errno == EAGAIN)
|
||||||
|
return;
|
||||||
|
slog(LOG_ERR, "received error when reading from tun "
|
||||||
|
"device: %s\n", strerror(errno));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (ret < sizeof(struct tun_pi)) {
|
||||||
|
slog(LOG_WARNING, "short read from tun device "
|
||||||
|
"(%d bytes)\n", ret);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (ret == gcfg->recv_buf_size) {
|
||||||
|
slog(LOG_WARNING, "dropping oversized packet\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
memset(p, 0, sizeof(struct pkt));
|
||||||
|
p->data = gcfg->recv_buf + sizeof(struct tun_pi);
|
||||||
|
p->data_len = ret - sizeof(struct tun_pi);
|
||||||
|
switch (ntohs(pi->proto)) {
|
||||||
|
case ETH_P_IP:
|
||||||
|
handle_ip4(p);
|
||||||
|
break;
|
||||||
|
case ETH_P_IPV6:
|
||||||
|
handle_ip6(p);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
slog(LOG_WARNING, "Dropping unknown proto %04x from "
|
||||||
|
"tun device\n", ntohs(pi->proto));
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void read_from_signalfd(void)
|
||||||
|
{
|
||||||
|
int ret, sig;
|
||||||
|
|
||||||
|
for (;;) {
|
||||||
|
ret = read(signalfds[0], &sig, sizeof(sig));
|
||||||
|
if (ret < 0) {
|
||||||
|
if (errno == EAGAIN)
|
||||||
|
return;
|
||||||
|
slog(LOG_CRIT, "got error %s from signalfd\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (ret == 0) {
|
||||||
|
slog(LOG_CRIT, "signal fd was closed\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (gcfg->dynamic_pool)
|
||||||
|
dynamic_maint(gcfg->dynamic_pool, 1);
|
||||||
|
slog(LOG_NOTICE, "exiting on signal %d\n", sig);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
int c, ret, longind;
|
||||||
|
int pidfd;
|
||||||
|
struct pollfd pollfds[2];
|
||||||
|
struct map6 *m6;
|
||||||
|
char addrbuf[INET6_ADDRSTRLEN];
|
||||||
|
|
||||||
|
char *conffile = TAYGA_CONF_PATH;
|
||||||
|
char *user = NULL;
|
||||||
|
char *group = NULL;
|
||||||
|
char *pidfile = NULL;
|
||||||
|
int do_chroot = 0;
|
||||||
|
int detach = 1;
|
||||||
|
int do_mktun = 0;
|
||||||
|
int do_rmtun = 0;
|
||||||
|
struct passwd *pw = NULL;
|
||||||
|
struct group *gr = NULL;
|
||||||
|
|
||||||
|
static struct option longopts[] = {
|
||||||
|
{ "mktun", 0, 0, 0 },
|
||||||
|
{ "rmtun", 0, 0, 0 },
|
||||||
|
{ "help", 0, 0, 0 },
|
||||||
|
{ "config", 1, 0, 'c' },
|
||||||
|
{ "nodetach", 0, 0, 'n' },
|
||||||
|
{ "user", 1, 0, 'u' },
|
||||||
|
{ "group", 1, 0, 'g' },
|
||||||
|
{ "chroot", 0, 0, 'r' },
|
||||||
|
{ "pidfile", 1, 0, 'p' },
|
||||||
|
{ 0, 0, 0, 0 }
|
||||||
|
};
|
||||||
|
|
||||||
|
for (;;) {
|
||||||
|
c = getopt_long(argc, argv, "c:dnu:g:rp:", longopts, &longind);
|
||||||
|
if (c == -1)
|
||||||
|
break;
|
||||||
|
switch (c) {
|
||||||
|
case 0:
|
||||||
|
if (longind == 0) {
|
||||||
|
if (do_rmtun) {
|
||||||
|
fprintf(stderr, "Error: both --mktun "
|
||||||
|
"and --rmtun specified.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
do_mktun = 1;
|
||||||
|
} else if (longind == 1) {
|
||||||
|
if (do_mktun) {
|
||||||
|
fprintf(stderr, "Error: both --mktun "
|
||||||
|
"and --rmtun specified.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
do_rmtun = 1;
|
||||||
|
} else if (longind == 2) {
|
||||||
|
fprintf(stderr, USAGE_TEXT, argv[0]);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 'c':
|
||||||
|
conffile = optarg;
|
||||||
|
break;
|
||||||
|
case 'd':
|
||||||
|
use_stdout = 1;
|
||||||
|
detach = 0;
|
||||||
|
break;
|
||||||
|
case 'n':
|
||||||
|
detach = 0;
|
||||||
|
break;
|
||||||
|
case 'u':
|
||||||
|
user = optarg;
|
||||||
|
break;
|
||||||
|
case 'g':
|
||||||
|
group = optarg;
|
||||||
|
break;
|
||||||
|
case 'r':
|
||||||
|
do_chroot = 1;
|
||||||
|
break;
|
||||||
|
case 'p':
|
||||||
|
pidfile = optarg;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
fprintf(stderr, "Try `%s --help' for more "
|
||||||
|
"information.\n", argv[0]);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (do_mktun || do_rmtun) {
|
||||||
|
use_stdout = 1;
|
||||||
|
if (user) {
|
||||||
|
fprintf(stderr, "Error: cannot specify -u or --user "
|
||||||
|
"with mktun/rmtun operation\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (group) {
|
||||||
|
fprintf(stderr, "Error: cannot specify -g or --group "
|
||||||
|
"with mktun/rmtun operation\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (do_chroot) {
|
||||||
|
fprintf(stderr, "Error: cannot specify -r or --chroot "
|
||||||
|
"with mktun/rmtun operation\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
read_config(conffile);
|
||||||
|
tun_setup(do_mktun, do_rmtun);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!use_stdout)
|
||||||
|
openlog("tayga", LOG_PID | LOG_NDELAY, LOG_DAEMON);
|
||||||
|
|
||||||
|
if (user) {
|
||||||
|
pw = getpwnam(user);
|
||||||
|
if (!pw) {
|
||||||
|
slog(LOG_CRIT, "Error: user %s does not exist\n", user);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (group) {
|
||||||
|
gr = getgrnam(group);
|
||||||
|
if (!gr) {
|
||||||
|
slog(LOG_CRIT, "Error: group %s does not exist\n",
|
||||||
|
group);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
read_config(conffile);
|
||||||
|
|
||||||
|
if (!gcfg->data_dir[0]) {
|
||||||
|
if (do_chroot) {
|
||||||
|
slog(LOG_CRIT, "Error: cannot chroot when no data-dir "
|
||||||
|
"is specified in %s\n", conffile);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
chdir("/");
|
||||||
|
} else if (chdir(gcfg->data_dir) < 0) {
|
||||||
|
if (user || errno != ENOENT) {
|
||||||
|
slog(LOG_CRIT, "Error: unable to chdir to %s, "
|
||||||
|
"aborting: %s\n", gcfg->data_dir,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (mkdir(gcfg->data_dir, 0777) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error: unable to create %s, aborting: "
|
||||||
|
"%s\n", gcfg->data_dir,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if (chdir(gcfg->data_dir) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error: created %s but unable to chdir "
|
||||||
|
"to it!?? (%s)\n", gcfg->data_dir,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (do_chroot && (!pw || pw->pw_uid == 0)) {
|
||||||
|
slog(LOG_CRIT, "Error: chroot is ineffective without also "
|
||||||
|
"specifying the -u option to switch to an "
|
||||||
|
"unprivileged user\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pidfile) {
|
||||||
|
pidfd = open(pidfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
||||||
|
if (pidfd < 0) {
|
||||||
|
slog(LOG_CRIT, "Error, unable to open %s for "
|
||||||
|
"writing: %s\n", pidfile,
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (detach && daemon(1, 0) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error, unable to fork and detach: %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pidfile) {
|
||||||
|
snprintf(addrbuf, sizeof(addrbuf), "%ld\n", (long)getpid());
|
||||||
|
write(pidfd, addrbuf, strlen(addrbuf));
|
||||||
|
close(pidfd);
|
||||||
|
}
|
||||||
|
|
||||||
|
slog(LOG_INFO, "starting TAYGA " VERSION "\n");
|
||||||
|
|
||||||
|
if (gcfg->cache_size) {
|
||||||
|
gcfg->urandom_fd = open("/dev/urandom", O_RDONLY);
|
||||||
|
if (gcfg->urandom_fd < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to open /dev/urandom, "
|
||||||
|
"aborting: %s\n", strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
read_random_bytes(gcfg->rand, 8 * sizeof(uint32_t));
|
||||||
|
gcfg->rand[0] |= 1; /* need an odd number for IPv4 hash */
|
||||||
|
}
|
||||||
|
|
||||||
|
tun_setup(0, 0);
|
||||||
|
|
||||||
|
if (do_chroot) {
|
||||||
|
if (chroot(gcfg->data_dir) < 0) {
|
||||||
|
slog(LOG_CRIT, "Unable to chroot to %s: %s\n",
|
||||||
|
gcfg->data_dir, strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
chdir("/");
|
||||||
|
}
|
||||||
|
|
||||||
|
if (gr) {
|
||||||
|
if (setregid(gr->gr_gid, gr->gr_gid) < 0 ||
|
||||||
|
setregid(gr->gr_gid, gr->gr_gid) < 0 ||
|
||||||
|
setgroups(1, &gr->gr_gid) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error: cannot set gid to %d: %s\n",
|
||||||
|
gr->gr_gid, strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pw) {
|
||||||
|
if (setreuid(pw->pw_uid, pw->pw_uid) < 0 ||
|
||||||
|
setreuid(pw->pw_uid, pw->pw_uid) < 0) {
|
||||||
|
slog(LOG_CRIT, "Error: cannot set uid to %d: %s\n",
|
||||||
|
pw->pw_uid, strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
signal_setup();
|
||||||
|
|
||||||
|
inet_ntop(AF_INET, &gcfg->local_addr4, addrbuf, sizeof(addrbuf));
|
||||||
|
slog(LOG_INFO, "TAYGA's IPv4 address: %s\n", addrbuf);
|
||||||
|
inet_ntop(AF_INET6, &gcfg->local_addr6, addrbuf, sizeof(addrbuf));
|
||||||
|
slog(LOG_INFO, "TAYGA's IPv6 address: %s\n", addrbuf);
|
||||||
|
m6 = list_entry(gcfg->map6_list.prev, struct map6, list);
|
||||||
|
if (m6->type == MAP_TYPE_RFC6052) {
|
||||||
|
inet_ntop(AF_INET6, &m6->addr, addrbuf, sizeof(addrbuf));
|
||||||
|
slog(LOG_INFO, "NAT64 prefix: %s/%d\n",
|
||||||
|
addrbuf, m6->prefix_len);
|
||||||
|
if (m6->addr.s6_addr32[0] == WKPF)
|
||||||
|
slog(LOG_INFO, "Note: traffic between IPv6 hosts and "
|
||||||
|
"private IPv4 addresses (i.e. to/from "
|
||||||
|
"64:ff9b::10.0.0.0/104, "
|
||||||
|
"64:ff9b::192.168.0.0/112, etc) "
|
||||||
|
"will be dropped. Use a translation "
|
||||||
|
"prefix within your organization's "
|
||||||
|
"IPv6 address space instead of "
|
||||||
|
"64:ff9b::/96 if you need your "
|
||||||
|
"IPv6 hosts to communicate with "
|
||||||
|
"private IPv4 addresses.\n");
|
||||||
|
}
|
||||||
|
if (gcfg->dynamic_pool) {
|
||||||
|
inet_ntop(AF_INET, &gcfg->dynamic_pool->map4.addr,
|
||||||
|
addrbuf, sizeof(addrbuf));
|
||||||
|
slog(LOG_INFO, "Dynamic pool: %s/%d\n", addrbuf,
|
||||||
|
gcfg->dynamic_pool->map4.prefix_len);
|
||||||
|
if (gcfg->data_dir[0])
|
||||||
|
load_dynamic(gcfg->dynamic_pool);
|
||||||
|
else
|
||||||
|
slog(LOG_INFO, "Note: dynamically-assigned mappings "
|
||||||
|
"will not be saved across restarts. "
|
||||||
|
"Specify data-dir in %s if you would "
|
||||||
|
"like dynamic mappings to be "
|
||||||
|
"persistent.\n", conffile);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (gcfg->cache_size)
|
||||||
|
create_cache();
|
||||||
|
|
||||||
|
gcfg->recv_buf = (uint8_t *)malloc(gcfg->recv_buf_size);
|
||||||
|
if (!gcfg->recv_buf) {
|
||||||
|
slog(LOG_CRIT, "Error: unable to allocate %d bytes for "
|
||||||
|
"receive buffer\n", gcfg->recv_buf_size);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
memset(pollfds, 0, 2 * sizeof(struct pollfd));
|
||||||
|
pollfds[0].fd = signalfds[0];
|
||||||
|
pollfds[0].events = POLLIN;
|
||||||
|
pollfds[1].fd = gcfg->tun_fd;
|
||||||
|
pollfds[1].events = POLLIN;
|
||||||
|
|
||||||
|
for (;;) {
|
||||||
|
ret = poll(pollfds, 2, POOL_CHECK_INTERVAL * 1000);
|
||||||
|
if (ret < 0) {
|
||||||
|
if (errno == EINTR)
|
||||||
|
continue;
|
||||||
|
slog(LOG_ERR, "poll returned error %s\n",
|
||||||
|
strerror(errno));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
time(&now);
|
||||||
|
if (pollfds[0].revents)
|
||||||
|
read_from_signalfd();
|
||||||
|
if (pollfds[1].revents)
|
||||||
|
read_from_tun();
|
||||||
|
if (gcfg->cache_size && (gcfg->last_cache_maint +
|
||||||
|
CACHE_CHECK_INTERVAL < now ||
|
||||||
|
gcfg->last_cache_maint > now)) {
|
||||||
|
addrmap_maint();
|
||||||
|
gcfg->last_cache_maint = now;
|
||||||
|
}
|
||||||
|
if (gcfg->dynamic_pool && (gcfg->last_dynamic_maint +
|
||||||
|
POOL_CHECK_INTERVAL < now ||
|
||||||
|
gcfg->last_dynamic_maint > now)) {
|
||||||
|
dynamic_maint(gcfg->dynamic_pool, 0);
|
||||||
|
gcfg->last_dynamic_maint = now;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
186
tayga.conf.5
Normal file
186
tayga.conf.5
Normal file
|
|
@ -0,0 +1,186 @@
|
||||||
|
.TH TAYGA.CONF "5" "June 2011" "TAYGA 0.9.2" ""
|
||||||
|
.SH NAME
|
||||||
|
tayga.conf \- configuration file of the TAYGA stateless NAT64 daemon
|
||||||
|
.SH DESCRIPTION
|
||||||
|
This file contains the configuration parameters for the TAYGA stateless NAT64
|
||||||
|
daemon. It must exist and contain the mandatory configuration items or
|
||||||
|
TAYGA will refuse to run.
|
||||||
|
.P
|
||||||
|
The configuration directives are listed below. With the exception of the
|
||||||
|
.B map
|
||||||
|
directive, only one instance of each directive may appear in tayga.conf.
|
||||||
|
.TP
|
||||||
|
.BI "tun-device " device
|
||||||
|
Name of the network interface that will be created by the kernel TUN module
|
||||||
|
for TAYGA to exchange IPv4 and IPv6 packets with the in-kernel TCP/IP stack.
|
||||||
|
If
|
||||||
|
.I device
|
||||||
|
does not already exist as a persistent interface (created by the
|
||||||
|
.B \-\-mktun
|
||||||
|
flag to tayga(8), for example), it will be created automatically when the
|
||||||
|
TAYGA daemon starts and destroyed when the daemon exits.
|
||||||
|
.IP
|
||||||
|
Note that TAYGA does not configure the host-side parameters of
|
||||||
|
.I device.
|
||||||
|
This must be done by the system administrator using the ifconfig(8), route(8),
|
||||||
|
and/or ip(8) commands.
|
||||||
|
.IP
|
||||||
|
This configuration directive is mandatory.
|
||||||
|
.TP
|
||||||
|
.BI "ipv4-addr " ipv4_address
|
||||||
|
IPv4 address that TAYGA will use as the source address for ICMPv4 errors
|
||||||
|
generated by the translation process. TAYGA will also respond to ICMP echo
|
||||||
|
requests (pings) at this address.
|
||||||
|
.IP
|
||||||
|
.I ipv4_address
|
||||||
|
is permitted to overlap with the prefix specified in the
|
||||||
|
.B dynamic-pool
|
||||||
|
directive, in which case
|
||||||
|
.I ipv4_address
|
||||||
|
will be removed from the pool of available addresses.
|
||||||
|
.IP
|
||||||
|
This configuration directive is mandatory.
|
||||||
|
.TP
|
||||||
|
.BI "ipv6-addr " ipv6_address
|
||||||
|
IPv6 address that TAYGA will use as the source address for ICMPv6 errors
|
||||||
|
generated by the translation process. TAYGA will also respond to ICMPv6 echo
|
||||||
|
requests (pings) at this address.
|
||||||
|
.IP
|
||||||
|
This configuration directive is mandatory unless the NAT64 prefix is specified
|
||||||
|
with the
|
||||||
|
.B prefix
|
||||||
|
directive, in which case TAYGA will generate its IPv6 address by mapping the
|
||||||
|
address specified in
|
||||||
|
.B ipv4-addr
|
||||||
|
into the NAT64 prefix.
|
||||||
|
.TP
|
||||||
|
.BI "prefix " ipv6_address/length
|
||||||
|
NAT64 prefix for mapping IPv4 addresses into the IPv6 address space. TAYGA
|
||||||
|
performs address translation as specified in RFC 6052, and only prefix lengths
|
||||||
|
allowed in that document will be permitted in the
|
||||||
|
.B prefix
|
||||||
|
directive.
|
||||||
|
.IP
|
||||||
|
The use of either a Network-Specific Prefix or the Well-Known Prefix
|
||||||
|
(64:ff9b::/96) is allowed,
|
||||||
|
.B however,
|
||||||
|
as required by RFC 6052, TAYGA will refuse to translate packets with a
|
||||||
|
source or destination address composed of the Well-Known Prefix and a
|
||||||
|
non-global IPv4 address (10.x.x.x, 192.168.x.x, etc).
|
||||||
|
.IP
|
||||||
|
Use of the
|
||||||
|
.B prefix
|
||||||
|
directive is optional. If it is not specified, all addresses to be translated
|
||||||
|
must be listed individually with the
|
||||||
|
.B map
|
||||||
|
directive.
|
||||||
|
.TP
|
||||||
|
.BI "map " "ipv4_address ipv6_address"
|
||||||
|
Creates a static mapping between
|
||||||
|
.I ipv4_address
|
||||||
|
and
|
||||||
|
.I ipv6_address
|
||||||
|
to be used when translating IPv4 packets to IPv6 or IPv6 packets to IPv4.
|
||||||
|
Multiple
|
||||||
|
.B map
|
||||||
|
directives are permitted in the tayga.conf file.
|
||||||
|
.IP
|
||||||
|
.I ipv4_address
|
||||||
|
is permitted to overlap with the prefix specified in the
|
||||||
|
.B dynamic-pool
|
||||||
|
directive, in which case
|
||||||
|
.I ipv4_address
|
||||||
|
will be removed from the pool of available addresses.
|
||||||
|
.IP
|
||||||
|
.I ipv6_address
|
||||||
|
.B "must not"
|
||||||
|
overlap with the prefix specified in the
|
||||||
|
.B prefix
|
||||||
|
directive.
|
||||||
|
.TP
|
||||||
|
.BI "dynamic-pool " ipv4_address/length
|
||||||
|
Address prefix containing addresses available to be assigned to IPv6 hosts.
|
||||||
|
.I
|
||||||
|
length
|
||||||
|
must be 31 or less, as the lowest-numbered address in the prefix is considered
|
||||||
|
reserved and will not be used for dynamic assignment.
|
||||||
|
.IP
|
||||||
|
If TAYGA receives an IPv6 packet to be translated with an IPv6 source address
|
||||||
|
that does not match any existing mapping rules (as specified by the
|
||||||
|
.B map
|
||||||
|
directive or the
|
||||||
|
.B prefix
|
||||||
|
directive), TAYGA will create a dynamic mapping between the IPv6 address and
|
||||||
|
an IPv4 address drawn from the prefix specified by the
|
||||||
|
.B dynamic-pool
|
||||||
|
directive. This mapping will be valid for two hours and four minutes after
|
||||||
|
the last packet matching the mapping is translated.
|
||||||
|
.IP
|
||||||
|
The
|
||||||
|
.B dynamic-pool
|
||||||
|
directive is optional. If it is not specified, all IPv6 addresses appearing
|
||||||
|
in packets passing through TAYGA must match the NAT64 prefix or a static
|
||||||
|
mapping rule.
|
||||||
|
.TP
|
||||||
|
.BI "data-dir " path
|
||||||
|
The absolute path of a directory where TAYGA should store its data files.
|
||||||
|
Presently the only data file that TAYGA will store is the
|
||||||
|
.I dynamic.map
|
||||||
|
file, which tracks dynamic address assignments made from the dynamic pool.
|
||||||
|
.IP
|
||||||
|
.I path
|
||||||
|
is also the directory that will be used as a chroot(2) "jail" if the
|
||||||
|
.B \-\-chroot
|
||||||
|
command-line option is specified to the TAYGA daemon.
|
||||||
|
.IP
|
||||||
|
The TAYGA daemon must have full permissions (rwx) to
|
||||||
|
.I path
|
||||||
|
after it has dropped superuser privileges. Generally this means that the
|
||||||
|
owner of
|
||||||
|
.I path
|
||||||
|
should be the user specified in the
|
||||||
|
.B \-\-user
|
||||||
|
command-line option.
|
||||||
|
.IP
|
||||||
|
The
|
||||||
|
.B data-dir
|
||||||
|
directive is optional, but without it, dynamic mappings will be lost when the
|
||||||
|
TAYGA daemon is stopped. Also, use of the
|
||||||
|
.B \-\-chroot
|
||||||
|
command-line option will not be possible.
|
||||||
|
.TP
|
||||||
|
.BI "strict-frag-hdr " on|off|true|false|1|0
|
||||||
|
Flag to control whether TAYGA adds fragmentation headers to IPv6 packets that
|
||||||
|
do not require fragmentation. RFC 6145 stipulates that the fragmentation
|
||||||
|
header SHOULD be added to all translated packets when the sender has not set
|
||||||
|
the DF (Don't Fragment) flag, to indicate that the sender allows fragmentation
|
||||||
|
and may not support path MTU discovery. Unfortunately, some firewall
|
||||||
|
implementations drop IPv6 packets that are fragmented into a single fragment,
|
||||||
|
most notably Linux netfilter conntrack in kernels older than 2.6.34.
|
||||||
|
.IP
|
||||||
|
When
|
||||||
|
.B strict-frag-hdr
|
||||||
|
is set to
|
||||||
|
.B true, on,
|
||||||
|
or
|
||||||
|
.B 1,
|
||||||
|
fragmentation headers will be added to all translated packets where the
|
||||||
|
DF bit in the original packet is clear. This is the RFC-complaint behavior.
|
||||||
|
.IP
|
||||||
|
When
|
||||||
|
.B strict-frag-hdr
|
||||||
|
is set to
|
||||||
|
.B false, off,
|
||||||
|
or
|
||||||
|
.B 0,
|
||||||
|
fragmentation headers will be suppressed when the translated packet fits
|
||||||
|
entirely within the IPv6 network MTU (1280 bytes). This is the default
|
||||||
|
behavior.
|
||||||
|
.IP
|
||||||
|
This setting does not affect packets that arrive at TAYGA already fragmented,
|
||||||
|
or packets that must be fragmented to fit within the IPv6 network MTU.
|
||||||
|
|
||||||
|
.SH "SEE ALSO"
|
||||||
|
.BR tayga (8)
|
||||||
|
.br
|
||||||
|
.BR <http://www.litech.org/tayga/>
|
||||||
102
tayga.conf.example
Normal file
102
tayga.conf.example
Normal file
|
|
@ -0,0 +1,102 @@
|
||||||
|
#
|
||||||
|
# Sample configuration file for TAYGA 0.9.2
|
||||||
|
#
|
||||||
|
# Modify this to use your own addresses!!
|
||||||
|
#
|
||||||
|
|
||||||
|
#
|
||||||
|
# TUN device that TAYGA will use to exchange IPv4 and IPv6 packets with the
|
||||||
|
# kernel. You may use any name you like, but `nat64' is recommended.
|
||||||
|
#
|
||||||
|
# This device may be created before starting the tayga daemon by running
|
||||||
|
# `tayga --mktun`. This allows routing and firewall rules to be set up prior
|
||||||
|
# to commencement of packet translation.
|
||||||
|
#
|
||||||
|
# Mandatory.
|
||||||
|
#
|
||||||
|
tun-device nat64
|
||||||
|
|
||||||
|
#
|
||||||
|
# TAYGA's IPv4 address. This is NOT your router's IPv4 address! TAYGA
|
||||||
|
# requires its own address because it acts as an IPv4 and IPv6 router, and
|
||||||
|
# needs to be able to send ICMP messages. TAYGA will also respond to ICMP
|
||||||
|
# echo requests (ping) at this address.
|
||||||
|
#
|
||||||
|
# This address can safely be located inside the dynamic-pool prefix.
|
||||||
|
#
|
||||||
|
# Mandatory.
|
||||||
|
#
|
||||||
|
ipv4-addr 192.168.255.1
|
||||||
|
|
||||||
|
#
|
||||||
|
# TAYGA's IPv6 address. This is NOT your router's IPv6 address! TAYGA
|
||||||
|
# requires its own address because it acts as an IPv4 and IPv6 router, and
|
||||||
|
# needs to be able to send ICMP messages. TAYGA will also respond to ICMP
|
||||||
|
# echo requests (ping6) at this address.
|
||||||
|
#
|
||||||
|
# You can leave ipv6-addr unspecified and TAYGA will construct its IPv6
|
||||||
|
# address using ipv4-addr and the NAT64 prefix.
|
||||||
|
#
|
||||||
|
# Optional if the NAT64 prefix is specified, otherwise mandatory. It is also
|
||||||
|
# mandatory if the NAT64 prefix is 64:ff9b::/96 and ipv4-addr is a private
|
||||||
|
# (RFC1918) address.
|
||||||
|
#
|
||||||
|
#ipv6-addr 2001:db8:1::2
|
||||||
|
|
||||||
|
#
|
||||||
|
# The NAT64 prefix. The IPv4 address space is mapped into the IPv6 address
|
||||||
|
# space by prepending this prefix to the IPv4 address. Using a /96 prefix is
|
||||||
|
# recommended in most situations, but all lengths specified in RFC 6052 are
|
||||||
|
# supported.
|
||||||
|
#
|
||||||
|
# This must be a prefix selected from your organization's IPv6 address space
|
||||||
|
# or the Well-Known Prefix 64:ff9b::/96. Note that using the Well-Known
|
||||||
|
# Prefix will prohibit IPv6 hosts from contacting IPv4 hosts that have private
|
||||||
|
# (RFC1918) addresses, per RFC 6052.
|
||||||
|
#
|
||||||
|
# The NAT64 prefix need not be specified if all required address mappings are
|
||||||
|
# listed in `map' directives. (See below.)
|
||||||
|
#
|
||||||
|
# Optional.
|
||||||
|
#
|
||||||
|
prefix 2001:db8:1:ffff::/96
|
||||||
|
# prefix 64:ff9b::/96
|
||||||
|
|
||||||
|
#
|
||||||
|
# Dynamic pool prefix. IPv6 hosts which send traffic through TAYGA (and do
|
||||||
|
# not correspond to a static map or an IPv4-translatable address in the NAT64
|
||||||
|
# prefix) will be assigned an IPv4 address from the dynamic pool. Dynamic
|
||||||
|
# maps are valid for 124 minutes after the last matching packet is seen.
|
||||||
|
#
|
||||||
|
# If no unassigned addresses remain in the dynamic pool (or no dynamic pool is
|
||||||
|
# configured), packets from unknown IPv6 hosts will be rejected with an ICMP
|
||||||
|
# unreachable error.
|
||||||
|
#
|
||||||
|
# Optional.
|
||||||
|
#
|
||||||
|
dynamic-pool 192.168.255.0/24
|
||||||
|
|
||||||
|
#
|
||||||
|
# Persistent data storage directory. The dynamic.map file, which saves the
|
||||||
|
# dynamic maps that are created from dynamic-pool, is stored in this
|
||||||
|
# directory. Omit if you do not need these maps to be persistent between
|
||||||
|
# instances of TAYGA.
|
||||||
|
#
|
||||||
|
# Optional.
|
||||||
|
#
|
||||||
|
data-dir /var/db/tayga
|
||||||
|
|
||||||
|
#
|
||||||
|
# Establishes a single-host map. If an IPv6 host should be consistently
|
||||||
|
# reachable at a specific IPv4 address, the mapping can be specified in a
|
||||||
|
# `map' directive. (IPv6 hosts numbered with an IPv4-translatable address do
|
||||||
|
# not need map directives.)
|
||||||
|
#
|
||||||
|
# IPv4 addresses specified in the `map' directive can safely be located inside
|
||||||
|
# the dynamic-pool prefix.
|
||||||
|
#
|
||||||
|
# Optional.
|
||||||
|
#
|
||||||
|
#map 192.168.5.42 2001:db8:1:4444::1
|
||||||
|
#map 192.168.5.43 2001:db8:1:4444::2
|
||||||
|
#map 192.168.255.2 2001:db8:1:569::143
|
||||||
284
tayga.h
Normal file
284
tayga.h
Normal file
|
|
@ -0,0 +1,284 @@
|
||||||
|
/*
|
||||||
|
* tayga.h -- main header file
|
||||||
|
*
|
||||||
|
* part of TAYGA <http://www.litech.org/tayga/>
|
||||||
|
* Copyright (C) 2010 Nathan Lutchansky <lutchann@litech.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/stat.h>
|
||||||
|
#include <sys/ioctl.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <netinet/in.h>
|
||||||
|
#include <arpa/inet.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <poll.h>
|
||||||
|
#include <fcntl.h>
|
||||||
|
#include <syslog.h>
|
||||||
|
#include <errno.h>
|
||||||
|
#include <time.h>
|
||||||
|
#include <linux/if.h>
|
||||||
|
#include <linux/if_tun.h>
|
||||||
|
#include <linux/if_ether.h>
|
||||||
|
|
||||||
|
#include "list.h"
|
||||||
|
#include "config.h"
|
||||||
|
|
||||||
|
|
||||||
|
/* Configuration knobs */
|
||||||
|
|
||||||
|
/* Number of seconds of silence before a map ages out of the cache */
|
||||||
|
#define CACHE_MAX_AGE 120
|
||||||
|
|
||||||
|
/* Number of seconds between cache ageing passes */
|
||||||
|
#define CACHE_CHECK_INTERVAL 5
|
||||||
|
|
||||||
|
/* Number of seconds between dynamic pool ageing passes */
|
||||||
|
#define POOL_CHECK_INTERVAL 45
|
||||||
|
|
||||||
|
/* Valid token delimiters in config file and dynamic map file */
|
||||||
|
#define DELIM " \t\r\n"
|
||||||
|
|
||||||
|
|
||||||
|
/* Protocol structures */
|
||||||
|
|
||||||
|
struct ip4 {
|
||||||
|
uint8_t ver_ihl; /* 7-4: ver==4, 3-0: IHL */
|
||||||
|
uint8_t tos;
|
||||||
|
uint16_t length;
|
||||||
|
uint16_t ident;
|
||||||
|
uint16_t flags_offset; /* 15-13: flags, 12-0: frag offset */
|
||||||
|
uint8_t ttl;
|
||||||
|
uint8_t proto;
|
||||||
|
uint16_t cksum;
|
||||||
|
struct in_addr src;
|
||||||
|
struct in_addr dest;
|
||||||
|
} __attribute__ ((__packed__));
|
||||||
|
|
||||||
|
#define IP4_F_DF 0x4000
|
||||||
|
#define IP4_F_MF 0x2000
|
||||||
|
#define IP4_F_MASK 0x1fff
|
||||||
|
|
||||||
|
struct ip6 {
|
||||||
|
uint32_t ver_tc_fl; /* 31-28: ver==6, 27-20: traf cl, 19-0: flow lbl */
|
||||||
|
uint16_t payload_length;
|
||||||
|
uint8_t next_header;
|
||||||
|
uint8_t hop_limit;
|
||||||
|
struct in6_addr src;
|
||||||
|
struct in6_addr dest;
|
||||||
|
} __attribute__ ((__packed__));
|
||||||
|
|
||||||
|
struct ip6_frag {
|
||||||
|
uint8_t next_header;
|
||||||
|
uint8_t reserved;
|
||||||
|
uint16_t offset_flags; /* 15-3: frag offset, 2-0: flags */
|
||||||
|
uint32_t ident;
|
||||||
|
} __attribute__ ((__packed__));
|
||||||
|
|
||||||
|
#define IP6_F_MF 0x0001
|
||||||
|
#define IP6_F_MASK 0xfff8
|
||||||
|
|
||||||
|
struct icmp {
|
||||||
|
uint8_t type;
|
||||||
|
uint8_t code;
|
||||||
|
uint16_t cksum;
|
||||||
|
uint32_t word;
|
||||||
|
} __attribute__ ((__packed__));
|
||||||
|
|
||||||
|
#define WKPF (htonl(0x0064ff9b))
|
||||||
|
|
||||||
|
/* Adjusting the MTU by 20 does not leave room for the IP6 fragmentation
|
||||||
|
header, for fragments with the DF bit set. Follow up with BEHAVE on this.
|
||||||
|
|
||||||
|
(See http://www.ietf.org/mail-archive/web/behave/current/msg08499.html)
|
||||||
|
*/
|
||||||
|
#define MTU_ADJ 20
|
||||||
|
|
||||||
|
|
||||||
|
/* TAYGA data definitions */
|
||||||
|
|
||||||
|
struct pkt {
|
||||||
|
struct ip4 *ip4;
|
||||||
|
struct ip6 *ip6;
|
||||||
|
struct ip6_frag *ip6_frag;
|
||||||
|
struct icmp *icmp;
|
||||||
|
uint8_t data_proto;
|
||||||
|
uint8_t *data;
|
||||||
|
uint32_t data_len;
|
||||||
|
uint32_t header_len; /* inc IP hdr for v4 but excl IP hdr for v6 */
|
||||||
|
};
|
||||||
|
|
||||||
|
enum {
|
||||||
|
MAP_TYPE_STATIC,
|
||||||
|
MAP_TYPE_RFC6052,
|
||||||
|
MAP_TYPE_DYNAMIC_POOL,
|
||||||
|
MAP_TYPE_DYNAMIC_HOST,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct map4 {
|
||||||
|
struct in_addr addr;
|
||||||
|
struct in_addr mask;
|
||||||
|
int prefix_len;
|
||||||
|
int type;
|
||||||
|
struct list_head list;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct map6 {
|
||||||
|
struct in6_addr addr;
|
||||||
|
struct in6_addr mask;
|
||||||
|
int prefix_len;
|
||||||
|
int type;
|
||||||
|
struct list_head list;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct map_static {
|
||||||
|
struct map4 map4;
|
||||||
|
struct map6 map6;
|
||||||
|
int conffile_lineno;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct free_addr {
|
||||||
|
uint32_t addr; /* in-use address (host order) */
|
||||||
|
uint32_t count; /* num of free addresses after addr */
|
||||||
|
struct list_head list;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct map_dynamic {
|
||||||
|
struct map4 map4;
|
||||||
|
struct map6 map6;
|
||||||
|
struct cache_entry *cache_entry;
|
||||||
|
time_t last_use;
|
||||||
|
struct list_head list;
|
||||||
|
struct free_addr free;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct dynamic_pool {
|
||||||
|
struct map4 map4;
|
||||||
|
struct list_head mapped_list;
|
||||||
|
struct list_head dormant_list;
|
||||||
|
struct list_head free_list;
|
||||||
|
struct free_addr free_head;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct cache_entry {
|
||||||
|
struct in6_addr addr6;
|
||||||
|
struct in_addr addr4;
|
||||||
|
time_t last_use;
|
||||||
|
uint32_t flags;
|
||||||
|
uint16_t ip4_ident;
|
||||||
|
struct list_head list;
|
||||||
|
struct list_head hash4;
|
||||||
|
struct list_head hash6;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define CACHE_F_SEEN_4TO6 (1<<0)
|
||||||
|
#define CACHE_F_SEEN_6TO4 (1<<1)
|
||||||
|
#define CACHE_F_GEN_IDENT (1<<2)
|
||||||
|
#define CACHE_F_REP_AGEOUT (1<<3)
|
||||||
|
|
||||||
|
struct config {
|
||||||
|
char tundev[IFNAMSIZ];
|
||||||
|
char data_dir[512];
|
||||||
|
uint32_t recv_buf_size;
|
||||||
|
struct in_addr local_addr4;
|
||||||
|
struct in6_addr local_addr6;
|
||||||
|
struct list_head map4_list;
|
||||||
|
struct list_head map6_list;
|
||||||
|
int dyn_min_lease;
|
||||||
|
int dyn_max_lease;
|
||||||
|
int max_commit_delay;
|
||||||
|
struct dynamic_pool *dynamic_pool;
|
||||||
|
int hash_bits;
|
||||||
|
int cache_size;
|
||||||
|
int allow_ident_gen;
|
||||||
|
int ipv6_offlink_mtu;
|
||||||
|
int lazy_frag_hdr;
|
||||||
|
|
||||||
|
int urandom_fd;
|
||||||
|
int tun_fd;
|
||||||
|
|
||||||
|
uint16_t mtu;
|
||||||
|
uint8_t *recv_buf;
|
||||||
|
|
||||||
|
uint32_t rand[8];
|
||||||
|
struct list_head cache_pool;
|
||||||
|
struct list_head cache_active;
|
||||||
|
time_t last_cache_maint;
|
||||||
|
struct list_head *hash_table4;
|
||||||
|
struct list_head *hash_table6;
|
||||||
|
|
||||||
|
time_t last_dynamic_maint;
|
||||||
|
time_t last_map_write;
|
||||||
|
int map_write_pending;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/* Macros and static functions */
|
||||||
|
|
||||||
|
/* Get a pointer to the object containing x, which is of type "type" and
|
||||||
|
* embeds x as a field called "field" */
|
||||||
|
#define container_of(x, type, field) ({ \
|
||||||
|
const typeof( ((type *)0)->field ) *__mptr = (x); \
|
||||||
|
(type *)( (char *)__mptr - offsetof(type, field) );})
|
||||||
|
|
||||||
|
#define IN6_IS_IN_NET(addr,net,mask) \
|
||||||
|
((net)->s6_addr32[0] == ((addr)->s6_addr32[0] & \
|
||||||
|
(mask)->s6_addr32[0]) && \
|
||||||
|
(net)->s6_addr32[1] == ((addr)->s6_addr32[1] & \
|
||||||
|
(mask)->s6_addr32[1]) && \
|
||||||
|
(net)->s6_addr32[2] == ((addr)->s6_addr32[2] & \
|
||||||
|
(mask)->s6_addr32[2]) && \
|
||||||
|
(net)->s6_addr32[3] == ((addr)->s6_addr32[3] & \
|
||||||
|
(mask)->s6_addr32[3]))
|
||||||
|
|
||||||
|
|
||||||
|
/* TAYGA function prototypes */
|
||||||
|
|
||||||
|
/* addrmap.c */
|
||||||
|
int validate_ip4_addr(const struct in_addr *a);
|
||||||
|
int validate_ip6_addr(const struct in6_addr *a);
|
||||||
|
int is_private_ip4_addr(const struct in_addr *a);
|
||||||
|
int calc_ip4_mask(struct in_addr *mask, const struct in_addr *addr, int len);
|
||||||
|
int calc_ip6_mask(struct in6_addr *mask, const struct in6_addr *addr, int len);
|
||||||
|
void create_cache(void);
|
||||||
|
int insert_map4(struct map4 *m, struct map4 **conflict);
|
||||||
|
int insert_map6(struct map6 *m, struct map6 **conflict);
|
||||||
|
struct map4 *find_map4(const struct in_addr *addr4);
|
||||||
|
struct map6 *find_map6(const struct in6_addr *addr6);
|
||||||
|
int append_to_prefix(struct in6_addr *addr6, const struct in_addr *addr4,
|
||||||
|
const struct in6_addr *prefix, int prefix_len);
|
||||||
|
int map_ip4_to_ip6(struct in6_addr *addr6, const struct in_addr *addr4,
|
||||||
|
struct cache_entry **c_ptr);
|
||||||
|
int map_ip6_to_ip4(struct in_addr *addr4, const struct in6_addr *addr6,
|
||||||
|
struct cache_entry **c_ptr, int dyn_alloc);
|
||||||
|
void addrmap_maint(void);
|
||||||
|
|
||||||
|
/* conffile.c */
|
||||||
|
void read_config(char *conffile);
|
||||||
|
|
||||||
|
/* dynamic.c */
|
||||||
|
struct map6 *assign_dynamic(const struct in6_addr *addr6);
|
||||||
|
void load_dynamic(struct dynamic_pool *pool);
|
||||||
|
void dynamic_maint(struct dynamic_pool *pool, int shutdown);
|
||||||
|
|
||||||
|
/* nat64.c */
|
||||||
|
void handle_ip4(struct pkt *p);
|
||||||
|
void handle_ip6(struct pkt *p);
|
||||||
|
|
||||||
|
/* tayga.c */
|
||||||
|
void slog(int priority, const char *format, ...);
|
||||||
|
void read_random_bytes(void *d, int len);
|
||||||
Loading…
Reference in a new issue