This is an automated email from the git hooks/post-receive script.
jforbes pushed a commit to branch master
in repository kernel-tests.
commit 6e3d89c02437a6cc5cef0fdc6bad578e700cf4b8
Author: Dave Jones <davej@xxxxxxxxxx>
Date: Tue Jun 12 11:59:51 2012 -0400
Add paxtest
---
.gitignore | 1 +
default/paxtest/.gitignore | 41 ++++
default/paxtest/COPYING | 340 +++++++++++++++++++++++++++++
default/paxtest/ChangeLog | 1 +
default/paxtest/Makefile | 24 ++
default/paxtest/Makefile.OpenBSD | 172 +++++++++++++++
default/paxtest/Makefile.psm | 214 ++++++++++++++++++
default/paxtest/README | 210 ++++++++++++++++++
default/paxtest/anonmap.c | 42 ++++
default/paxtest/body.c | 109 +++++++++
default/paxtest/body.h | 4 +
default/paxtest/chpax-0.7/Changelog | 21 ++
default/paxtest/chpax-0.7/Makefile | 33 +++
default/paxtest/chpax-0.7/README | 11 +
default/paxtest/chpax-0.7/aout.c | 18 ++
default/paxtest/chpax-0.7/chpax.1 | 80 +++++++
default/paxtest/chpax-0.7/chpax.c | 97 ++++++++
default/paxtest/chpax-0.7/chpax.h | 77 +++++++
default/paxtest/chpax-0.7/elf32.c | 22 ++
default/paxtest/chpax-0.7/elf64.c | 22 ++
default/paxtest/chpax-0.7/flags.c | 147 +++++++++++++
default/paxtest/chpax-0.7/io.c | 118 ++++++++++
default/paxtest/crt1S.S | 57 +++++
default/paxtest/debian/changelog | 75 +++++++
default/paxtest/debian/control | 24 ++
default/paxtest/debian/copyright | 8 +
default/paxtest/debian/dirs | 2 +
default/paxtest/debian/docs | 5 +
default/paxtest/debian/manpage.1.ex | 60 +++++
default/paxtest/debian/manpage.sgml.ex | 152 +++++++++++++
default/paxtest/debian/paxtest.sgml | 167 ++++++++++++++
default/paxtest/debian/rules | 104 +++++++++
default/paxtest/execbss.c | 31 +++
default/paxtest/execdata.c | 31 +++
default/paxtest/execheap.c | 36 +++
default/paxtest/execstack.c | 30 +++
default/paxtest/genpaxtest | 74 +++++++
default/paxtest/getamap.c | 30 +++
default/paxtest/getheap.c | 24 ++
default/paxtest/getmain.c | 19 ++
default/paxtest/getshlib.c | 36 +++
default/paxtest/getstack.c | 18 ++
default/paxtest/interp.c | 5 +
default/paxtest/mprotanon.c | 65 ++++++
default/paxtest/mprotbss.c | 39 ++++
default/paxtest/mprotdata.c | 39 ++++
default/paxtest/mprotheap.c | 44 ++++
default/paxtest/mprotshbss.c | 71 ++++++
default/paxtest/mprotshdata.c | 71 ++++++
default/paxtest/mprotstack.c | 35 +++
default/paxtest/randamap.c | 12 +
default/paxtest/randbody.c | 63 ++++++
default/paxtest/randheap1.c | 12 +
default/paxtest/randheap2.c | 12 +
default/paxtest/randmain1.c | 12 +
default/paxtest/randmain2.c | 12 +
default/paxtest/randshlib.c | 12 +
default/paxtest/randstack1.c | 12 +
default/paxtest/randstack2.c | 12 +
default/paxtest/results/Adamantix.blackhat | 33 +++
default/paxtest/results/Adamantix.kiddie | 33 +++
default/paxtest/results/Gentoo.blackhat | 33 +++
default/paxtest/results/Results.README | 10 +
default/paxtest/rettofunc1.c | 31 +++
default/paxtest/rettofunc1x.c | 31 +++
default/paxtest/rettofunc2.c | 25 +++
default/paxtest/rettofunc2x.c | 25 +++
default/paxtest/runtest.sh | 20 ++
default/paxtest/shellcode.h | 37 ++++
default/paxtest/shlibbss.c | 63 ++++++
default/paxtest/shlibdata.c | 63 ++++++
default/paxtest/shlibtest.c | 16 ++
default/paxtest/shlibtest2.c | 17 ++
default/paxtest/targets | 10 +
default/paxtest/writetext.c | 56 +++++
75 files changed, 3818 insertions(+)
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5761abc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.o
diff --git a/default/paxtest/.gitignore b/default/paxtest/.gitignore
new file mode 100644
index 0000000..db10415
--- /dev/null
+++ b/default/paxtest/.gitignore
@@ -0,0 +1,41 @@
+anonmap
+chpax
+execbss
+execdata
+execheap
+execstack
+getamap
+getheap1
+getheap2
+getmain1
+getmain2
+getshlib
+getstack1
+getstack2
+mprotanon
+mprotbss
+mprotdata
+mprotheap
+mprotshbss
+mprotshdata
+mprotstack
+paxbin
+paxtest
+paxtest.log
+randamap
+randheap1
+randheap2
+randmain1
+randmain2
+randshlib
+randstack1
+randstack2
+rettofunc1
+rettofunc1x
+rettofunc2
+rettofunc2x
+shlibbss
+shlibdata
+shlibtest.so
+shlibtest2.so
+writetext
diff --git a/default/paxtest/COPYING b/default/paxtest/COPYING
new file mode 100644
index 0000000..60549be
--- /dev/null
+++ b/default/paxtest/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+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
+using it. (Some other Free Software Foundation software is covered by
+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
+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
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+
+ 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.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 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
+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.
+
+ 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.
+
+ 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
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+ 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.
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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.
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+ 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
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+This section is intended to make thoroughly clear what is believed to
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+ 8. If the distribution and/or use of the Program is restricted in
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+may add an explicit geographical distribution limitation excluding
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+
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+address new problems or concerns.
+
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+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
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+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.
+
+ 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
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+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) 19yy <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) 19yy 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.
diff --git a/default/paxtest/ChangeLog b/default/paxtest/ChangeLog
new file mode 120000
index 0000000..d526672
--- /dev/null
+++ b/default/paxtest/ChangeLog
@@ -0,0 +1 @@
+debian/changelog
\ No newline at end of file
diff --git a/default/paxtest/Makefile b/default/paxtest/Makefile
new file mode 100644
index 0000000..e38ae7e
--- /dev/null
+++ b/default/paxtest/Makefile
@@ -0,0 +1,24 @@
+#!/usr/bin/make
+#
+# PaXtest master makefile
+# Copyright(c) 2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+# This file has been released under the GNU Public Licence version 2 or later
+
+all:
+ @cat targets
+
+linux:
+ make -f Makefile.psm
+
+linux32:
+ make -f Makefile.psm THEARCH=-m32
+
+linux64:
+ make -f Makefile.psm THEARCH=-m64
+
+openbsd:
+ gmake -f Makefile.OpenBSD
+
+clean:
+ make -f Makefile.psm clean
+
diff --git a/default/paxtest/Makefile.OpenBSD b/default/paxtest/Makefile.OpenBSD
new file mode 100644
index 0000000..b155313
--- /dev/null
+++ b/default/paxtest/Makefile.OpenBSD
@@ -0,0 +1,172 @@
+#!/usr/bin/gmake
+
+CC=gcc
+CFLAGS=
+LDFLAGS=
+ifndef RUNDIR
+RUNDIR=.
+endif
+
+CFLAGS+=-DRUNDIR=\"${RUNDIR}\" -fno-stack-protector -ftrampolines
+LDFLAGS+=-lpthread
+
+
+TESTS= anonmap \
+ execbss \
+ execdata \
+ execheap \
+ execstack \
+ mprotanon \
+ mprotbss \
+ mprotdata \
+ mprotheap \
+ mprotshbss \
+ mprotshdata \
+ mprotstack \
+ randamap \
+ randheap1 \
+ randmain1 \
+ randshlib \
+ randstack1 \
+ randstack2 \
+ rettofunc1 \
+ rettofunc1x \
+ rettofunc2 \
+ rettofunc2x \
+ shlibbss \
+ shlibdata \
+ writetext
+
+UTILS= getamap \
+ getheap1 \
+ getheap2 \
+ getmain1 \
+ getmain2 \
+ getshlib \
+ getstack1 \
+ getstack2
+
+SHLIBS= shlibtest.so \
+ shlibtest2.so
+
+all: $(SHLIBS) $(TESTS) $(UTILS) paxtest
+
+clean:
+ -rm -f *.o *.s *~ core
+ -rm -f $(SHLIBS) $(TESTS) $(UTILS)
+ -rm -f paxtest paxtest.log a.out
+
+ifdef DESTDIR
+ifdef BINDIR
+ifdef RUNDIR
+install: all
+ mkdir -p $(DESTDIR)/$(RUNDIR)
+ cp $(SHLIBS) $(TESTS) $(UTILS) $(DESTDIR)/$(RUNDIR)
+ mkdir -p $(DESTDIR)/$(BINDIR)
+ cp paxtest $(DESTDIR)/$(BINDIR)
+ chmod 755 $(DESTDIR)/$(BINDIR)/paxtest
+endif
+endif
+endif
+
+paxtest: $(TESTS) genpaxtest
+ sh genpaxtest $(TESTS)
+
+anonmap: body.o anonmap.o
+
+execbss: body.o execbss.o
+
+execdata: body.o execdata.o
+
+execheap: body.o execheap.o
+
+execstack: body.o execstack.o
+
+getheap1: getheap.o
+ $(CC) $(LDFLAGS) -o $@ $+
+
+getheap2: getheap.o
+ $(CC) -shared -o $@ $+
+
+getheap.o: getheap.c
+ $(CC) $(CFLAGS) -fPIC -o $@ -c $<
+
+getamap.o: getamap.c
+
+getmain1: getmain.o
+ $(CC) $(LDFLAGS) -o $@ $+
+
+getmain2: getmain2.o
+ $(CC) -shared -o $@ $+
+
+getmain2.o: getmain.c
+ $(CC) $(CFLAGS) -fPIC -o $@ -c $<
+
+getshlib: getshlib.o
+
+getstack1: getstack.o
+ $(CC) $(LDFLAGS) -o $@ $+
+
+getstack2: getstack1
+ rm -f $@
+ cp getstack1 $@
+ chmod +x $@
+
+mprotanon: body.o mprotanon.o
+
+mprotbss: body.o mprotbss.o
+
+mprotheap: body.o mprotheap.o
+
+mprotdata: body.o mprotdata.o
+
+mprotshbss: body.o mprotshbss.o shlibtest.so
+
+mprotshdata: body.o mprotshdata.o shlibtest.so
+
+mprotstack: body.o mprotstack.o
+
+randamap: randbody.o randamap.o
+
+randheap1: randbody.o randheap1.o
+
+randheap2: randbody.o randheap2.o
+
+randmain1: randbody.o randmain1.o
+
+randmain2: randbody.o randmain2.o
+
+randshlib: randbody.o randshlib.o
+
+randstack1: randbody.o randstack1.o
+
+randstack2: randbody.o randstack2.o
+
+rettofunc1: body.o rettofunc1.o
+
+rettofunc1x: body.o rettofunc1x.o
+ $(CC) $(LDFLAGS) -o $@ $+
+
+rettofunc2: body.o rettofunc2.o
+
+rettofunc2x: body.o rettofunc2x.o
+ $(CC) $(LDFLAGS) -o $@ $+
+
+shlibtest.o: shlibtest.c
+ $(CC) $(CFLAGS) -fPIC -c $< -o $@
+
+shlibtest2.o: shlibtest2.c
+ $(CC) $(CFLAGS) -fPIC -c $< -o $@
+
+shlibtest.so: shlibtest.o
+ $(CC) $(SHLDFLAGS) -shared -o $@ $+
+
+shlibtest2.so: shlibtest2.o
+ $(CC) $(SHLDFLAGS) -shared -o $@ $+
+
+shlibbss: body.o shlibbss.o shlibtest.so shlibtest2.so
+
+shlibdata: body.o shlibdata.o shlibtest.so shlibtest2.so
+
+writetext: body.o writetext.o shlibtest.so
+
diff --git a/default/paxtest/Makefile.psm b/default/paxtest/Makefile.psm
new file mode 100644
index 0000000..68b960f
--- /dev/null
+++ b/default/paxtest/Makefile.psm
@@ -0,0 +1,214 @@
+#!/usr/bin/make
+
+# tested with make-3.79.1/gcc-2.96 (shared) and make-3.80/gcc-3.3.2/3 (pie)
+# make-3.79.1 does not support $$@ as target requirement (works for make-3.80)
+
+# preliminaries:
+# Gentoo modifies the specs adding pie/nopie to enable/disable ET_DYN binaries
+
+CC := gcc
+LD := ld
+CC_PIC := -fPIC
+
+check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \
+ then echo "$(1)"; else echo "$(2)"; fi)
+
+check_as = $(shell if $(CC) -Wa,$(1) -Wa,-Z -c -o /dev/null -xassembler /dev/null > /dev/null 2>&1; \
+ then echo "-Wa,$(1)"; fi)
+
+# stack protector has to be disabled for some tests
+CC_SSP := $(call check_gcc,-fno-stack-protector,)
+CC_SSP += $(call check_gcc,-fno-stack-protector-all,)
+
+ASFLAGS := $(call check_as,--noexecstack)
+
+CC_PIE := $(call check_gcc,-fPIE,-fPIC)
+
+CC_TRAMPOLINES := $(call check_gcc,-ftrampolines,)
+
+CC_MSECURE_PLT := $(call check_gcc,-msecure-plt,)
+
+LD_PIE = $(shell $(LD) --help | grep -q pie && echo "-pie")
+ifneq ($(LD_PIE),)
+# Gentoo (hardened specs enabled)
+CC_ETEXEC = $(shell $(CC) -dumpspecs | grep -q "\!nopie" && echo "-nopie")
+LD_ETEXEC = $(CC_ETEXEC)
+endif
+
+ifeq ($(LD_PIE),)
+LD_PIE = -shared
+endif
+
+# check for installed binaries
+CHPAXBIN := $(shell if which chpax >/dev/null 2>&1 ; then echo chpax; fi)
+PAXCTLBIN := $(shell if which paxctl >/dev/null 2>&1 ; then echo paxctl; fi)
+# should somehow use this to see if we really need paxctl
+# list=`paxctl -qQv /sbin/paxctl 2>/dev/null`; if echo $list | grep -q "PaX flags" ; then echo paxctl; fi
+# instead we use both markings to have paxtest running correctly on all platforms
+
+ifneq ($(PAXCTLBIN),)
+DUMMY := $(shell echo '${PAXCTLBIN} $$*' > paxbin)
+endif
+
+# for some reason the .c files need it, else GNU_STACK=RWE
+OPT_FLAGS := -O2 $(ASFLAGS)
+PTHREAD := -lpthread
+# define stripping of binaries/libs here, or set these on make's commandline,
+# else you'll loose the chpax flags!
+LDFLAGS :=
+SHLDFLAGS :=
+ifndef RUNDIR
+RUNDIR := .
+endif
+
+# The Hardened GCC compiler has stack protector on by default, this
+# could interfere with the results of this test.
+
+CFLAGS := $(OPT_FLAGS) -D_FORTIFY_SOURCE=0 -DRUNDIR=\"${RUNDIR}\" $(CC_SSP) $(CC_TRAMPOLINES)
+
+ifneq ($(THEARCH),)
+CFLAGS += $(THEARCH)
+LDFLAGS += $(THEARCH)
+SHLDFLAGS += $(THEARCH)
+endif
+
+EXEC_TESTS = anonmap execbss execdata execheap execstack
+MPROT_TESTS = mprotanon mprotbss mprotdata mprotheap mprotstack
+SHLIB_TESTS = shlibbss shlibdata
+MPROTSH_TESTS = mprotshbss mprotshdata writetext
+RAND_TESTS = randamap randheap1 randheap2 randmain1 randmain2 randshlib randstack1 randstack2
+RET_TESTS = rettofunc1 rettofunc2
+RETX_TESTS = rettofunc1x rettofunc2x
+
+TESTS = $(EXEC_TESTS) $(SHLIB_TESTS) $(MPROT_TESTS) $(MPROTSH_TESTS) $(RAND_TESTS) $(RET_TESTS) $(RETX_TESTS)
+
+UTILS= getamap getheap1 getheap2 getmain1 getmain2 getshlib getstack1 getstack2
+
+SHLIBS= shlibtest.so shlibtest2.so
+
+ifeq ($(CHPAXBIN),)
+CHPAXVER := 0.7
+CHPAX := chpax-$(CHPAXVER)
+CHPAXSRC := $(CHPAX)/aout.c $(CHPAX)/chpax.c $(CHPAX)/elf32.c $(CHPAX)/elf64.c $(CHPAX)/flags.c $(CHPAX)/io.c
+CHPAXBIN := ./chpax
+all: chpax $(SHLIBS) $(TESTS) $(UTILS) paxtest
+else
+all: $(SHLIBS) $(TESTS) $(UTILS) paxtest
+endif
+
+# we need the failure handling, for kernels not supporting EI_PAX
+DUMMY := $(shell echo '${CHPAXBIN} $$* >/dev/null 2>/dev/null ||:' >> paxbin; chmod +x paxbin)
+
+PAXBIN := ./paxbin
+DL := -ldl
+
+clean:
+ -rm -f *.o *.s *~ core
+ -rm -f $(TESTS) $(UTILS) $(SHLIBS)
+ -rm -f paxtest paxtest.log a.out dumpspecs paxbin
+ -rm -f chpax-0.7/*.o
+ -rm -f chpax
+
+ifdef DESTDIR
+ifdef BINDIR
+ifdef RUNDIR
+install: all
+ mkdir -p $(DESTDIR)/$(RUNDIR)
+ cp $(SHLIBS) $(TESTS) $(UTILS) $(DESTDIR)/$(RUNDIR)
+ mkdir -p $(DESTDIR)/$(BINDIR)
+ cp paxtest $(DESTDIR)/$(BINDIR)
+ chmod 755 $(DESTDIR)/$(BINDIR)/paxtest
+endif
+endif
+endif
+
+chpax: $(CHPAXSRC:.c=.o)
+ $(CC) $(LDFLAGS) -o $@ $^
+
+paxtest: $(TESTS) genpaxtest
+ sh genpaxtest $(TESTS)
+
+.S.o:
+ $(CC) $(CFLAGS) $(CC_PIE) $(ASFLAGS) -o $@ -c $<
+.c.o:
+ $(CC) $(CFLAGS) -o $@ -c $<
+
+$(EXEC_TESTS) $(MPROT_TESTS): body.o
+ $(CC) $(CFLAGS) -o $@.o -c $@.c
+ $(CC) $(LDFLAGS) $(PTHREAD) -o $@ $< $@.o
+
+$(RAND_TESTS): randbody.o
+ $(CC) $(CFLAGS) -o $@.o -c $@.c
+ $(CC) $(LDFLAGS) -o $@ $< $@.o
+
+getamap: getamap.o
+ $(CC) $(LDFLAGS) -o $@ $@.o
+
+# get heap1/main1 are built w/o PIC
+get%1.o: get%.c
+ $(CC) $(CFLAGS) $(CC_ETEXEC) -o $@ -c $<
+
+# get heap2/main2 are built w/ PIC
+get%2.o: get%.c
+ $(CC) $(CFLAGS) $(CC_PIE) -o $@ -c $<
+
+# Adamantix uses the PIC version (getheap2.o), not necessary for ET_EXEC
+# build as ET_EXEC (not in Adamantix's Makefile)
+getheap1: getheap1.o
+ $(CC) $(LDFLAGS) $(LD_ETEXEC) -o $@ $<
+
+getmain1: getmain1.o
+ $(CC) $(LDFLAGS) $(LD_ETEXEC) -o $@ $<
+ -$(PAXBIN) -C $@
+ $(PAXBIN) -SPRXM $@
+
+getheap2 getmain2: getheap2.o getmain2.o
+ $(CC) $(LDFLAGS) $(LD_PIE) -o $@ $@.o || (echo -e "#!/bin/sh\necho $@ pie not implemented" > $@; chmod +x $@)
+
+getshlib: getshlib.o
+ $(CC) $(LDFLAGS) -o $@ $< $(DL)
+
+# ET_EXEC and usage of "m" is not confirmed (as in Gentoo patch)
+# Adamantix does not use it
+# Pax Team does not want "m" for getstack1/2
+getstack1: getstack.o
+ $(CC) $(LDFLAGS) -o $@ $<
+ -$(PAXBIN) -C $@
+ $(PAXBIN) -SRpm $@
+
+getstack2: getstack.o
+ $(CC) $(LDFLAGS) -o $@ $<
+ # disable segmexec, kernel else overrides pageexec
+ -$(PAXBIN) -C $@
+ $(PAXBIN) -PRsm $@
+
+$(MPROTSH_TESTS): body.o shlibtest.so
+ $(CC) $(CFLAGS) -o $@.o -c $@.c
+ $(CC) $(LDFLAGS) $(DL) $(PTHREAD) -o $@ $@.o $^
+
+# used for RANDEXEC'd binaries
+retbody.o: body.c
+ $(CC) $(CFLAGS) $(CC_ETEXEC) -o $@ -c $<
+
+# build as ET_EXEC (recommended by PaX Team, not really a requirement)
+$(RET_TESTS): retbody.o
+ $(CC) $(CFLAGS) $(CC_ETEXEC) -o $@.o -c $@.c
+ $(CC) $(LDFLAGS) $(LD_ETEXEC) $(PTHREAD) -o $@ $< $@.o
+
+# build as ET_EXEC (not in Adamantix's Makefile)
+$(RETX_TESTS): retbody.o
+ $(CC) $(CFLAGS) $(CC_ETEXEC) -o $@.o -c $@.c
+ $(CC) $(LDFLAGS) $(LD_ETEXEC) $(PTHREAD) -o $@ $< $@.o
+ -$(PAXBIN) -C $@
+ $(PAXBIN) -SPXM $@
+
+# should also shlibbss.o and shlibdata.o be built w/ PIC?
+# if yes, remove tes from target and dependency
+shlibtes%.o: shlibtes%.c
+ $(CC) $(CFLAGS) $(CC_PIC) -o $@ -c $<
+
+shlib%.so: shlib%.o
+ $(CC) $(SHLDFLAGS) -shared -o $@ $<
+
+$(SHLIB_TESTS): body.o $(SHLIBS) shlibbss.o shlibdata.o
+ $(CC) $(LDFLAGS) $(PTHREAD) -o $@ body.o $@.o $(SHLIBS) $(DL)
diff --git a/default/paxtest/README b/default/paxtest/README
new file mode 100644
index 0000000..15ab406
--- /dev/null
+++ b/default/paxtest/README
@@ -0,0 +1,210 @@
+Paxtest v0.9.9 README file
+
+Copyright (c)2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+
+Additional architecture/target support & fixes
+by Brad Spengler <spender@xxxxxxxxxxxxxx>
+
+This file has been released under the GNU GPL version 2 or later.
+
+
+History:
+-------
+When I started the Adamantix project, one of the first things I did was to add
+PaX functionality to the kernel. PaX is a process memory protection patch.
+Anything that happens outside the kernel on a UNIX system happens inside a
+process. There are many attacks on the Internet that try to corrupt the process
+memory, in order to make it do something for which it was not intended. One
+example of such an attack is the so called buffer overflow attack. This kind of
+attack is one of the most popular at this moment.
+
+PaX protects against such attacks. Or so the author claims. When I started to
+add PaX to Adamantix, almost nothing happened. A few libraries broke, but that
+was easy to fix, and that was it. I expected many programs to break. So I
+started to wonder: ``Does this patch really do anything?'' Instead of
+speculating, I decided to write a test suite. After some time, the first
+version of paxtest was ready. More functionality was added. With the addition
+of every test, it proved that PaX was working just fine. I decided to publish
+paxtest, because it can be useful for other people to test the functionality
+of the memory protection of their system(s).
+
+
+Compiling paxtest:
+-----------------
+Compiling paxtest should be quite straightforward. First unpack paxtest. Then
+cd into the directory. And then run one of the following:
+
+make linux (to create Linux binaries)
+make openbsd (to create OpenBSD binaries)
+
+(Type make to get the above list.)
+
+
+Running paxtest:
+---------------
+In order to run paxtest, type the following:
+
+./paxtest kiddie (to run paxtest in script kiddie mode)
+
+or
+
+./paxtest blackhat (to run paxtest in blackhat mode)
+
+This will create a file paxtest.log in the current directory.
+
+
+Kiddie and blackhat mode:
+------------------------
+Paxtest provides two modes. The first mode is the so called kiddie mode, which
+makes paxtest behave rather nicely. This simulates the level of sophistication
+displayed by script kiddies. Good results in this mode do not necessarily mean
+that the security level of your system is high.
+
+The second mode, the blackhat mode, makes paxtest use of a few tricks to try
+to get around the protection of the kernel. The attacks done by paxtest in this
+mode can be performed in real life by attackers too. But the level of
+sophistication is somewhat higher than those of the kiddie mode and the chance
+of success is somewhat lower. But there is still a realistic chance of success.
+
+People who are concerned about the security of their systems should look at
+the blackhat mode results.
+
+
+The tests:
+---------
+There are two types of tests in paxtest. First there are tests which try
+different ways to write and then run exploit code. The more different exploits
+are stopped, the better the protection provided by the system. Note that the
+tests simulate what an exploit could (and would) do, not what an application
+does normally. This is especially important in the mprotect tests because
+some people claim that normal applicatons do not do this - indeed, but that
+is not what these tests are about, they simulate exploits, not applications.
+
+Second, there is a number of tests that measure the randomisation of the
+system. Randomisation does not provide any security, but only makes it harder
+for the attacker to guess where to attack (it is in fact security through
+obscurity). It is like rearranging the furniture in a pitch dark room every
+time someone enters. The more random the furniture is placed, the more likely
+it is that someone stumbles over it. The same applies to randomisation in this
+context, randomisation makes it more likely that an attack does not succeed.
+In short: More random bits is better. Zero bits means: No randomisation.
+
+
+Executable anonymous mapping
+Executable bss
+Executable data
+Executable heap
+Executable stack
+
+ These tests try to write data to memory and then try to execute it as
+ if it was executable code. This is exactly what most buffer exploits
+ do. There are five tests, each test tests one specific memory area.
+
+Executable anonymous mapping (mprotect)
+Executable bss (mprotect)
+Executable data (mprotect)
+Executable heap (mprotect)
+Executable stack (mprotect)
+
+ These tests do the same as the previous tests. But now the test also
+ tries to disable the memory protection in the kernel using mprotect().
+ It changes the protection status of memory. An attacker can use it to
+ try to switch off memory protection and execute shellcode as usual.
+
+Executable shared library bss (mprotect)
+Executable shared library data (mprotect)
+
+ These tests try to overwrite two different data areas in a shared
+ library. After that, it tries to execute the data as if it was code.
+ Again, these tests try to switch off the memory protection using
+ mprotect().
+
+Anonymous mapping randomisation test
+
+ Anonymous mappings are used for dynamically allocating memory in a
+ program. This test tries to figure out the number of random bits used
+ when such an anonymous mapping is requested. More bits is better.
+
+Heap randomisation test (ET_EXEC)
+Heap randomisation test (ET_DYN)
+
+ The heap is used for allocating small chunks of memory in a program.
+ There there are two different types of executables, ET_EXEC (normal
+ executables) and ET_DYN (basically executable shared libraries). The
+ randomisation can depend on the kind of executable, therefore there
+ are two tests.
+
+ Most Linux distributions ship with ET_EXEC executables only. So for
+ those the ET_EXEC randomisation is the most relevant. Adamantix ships
+ with mostly ET_DYN executables, so the ET_EXEC randomisation is not
+ very relevant, but the ET_DYN randomisation is.
+
+ Normally ET_DYN randomisation is bigger than the ET_EXEC randomisation.
+
+Main executable randomisation (ET_EXEC)
+Main executable randomisation (ET_DYN)
+
+ Same here, two tests, because the two different types of executables
+ can have different randomisation.
+
+Shared library randomisation test
+
+ Shared libraries can be located at random addresses too, which is what
+ this test tries to find out.
+
+Stack randomisation test (SEGMEXEC)
+Stack randomisation test (PAGEEXEC)
+
+ The stack is used for storing intermediate data. It also contains
+ addresses that influence the way programs run. That combination makes
+ the stack a popular memory area for attacks. Randomisation makes it
+ harder though, which is what these test try to find out.
+
+Return to function (strcpy)
+Return to function (strcpy, RANDEXEC)
+Return to function (memcpy)
+Return to function (memcpy, RANDEXEC)
+
+ Return to function attacks are very nasty. These tests are hard to
+ stop by kernel patches, but they show that there you should not expect
+ perfect protection from this kind of security patches.
+
+Executable shared library bss
+Executable shared library data
+
+ These tests try to overwrite two different data areas in a shared
+ library. After that, it tries to execute the data as if it was code.
+
+Writable text segments
+
+ When an attacker can overwrite code, he can basically alter the
+ program while it runs. This test tries to do that.
+
+
+Perfect protection:
+------------------
+Perfect protection is not possible. That is also the reason why there are
+so called return to function tests in paxtest. PaX does not prevent return to
+function attacks. Neither do any of the other memory protection patches. But it
+is important that people who use kernel patches like PaX do not get a false
+sense of security. As the PaX documentation points out: There are three
+different classes of attacks, and at this moment PaX can only guarantee
+protection against one of them.
+
+
+Further reading:
+---------------
+PaX home page:
+http://pax.grsecurity.net/
+
+PaX mailing list:
+http://lists.adamantix.org/
+
+PaX documentation (also a thorough introduction into memory protection):
+http://pax.grsecurity.net/docs/
+
+An article I wrote about PaX has been published in Linux Magazine. The whole
+article is available on-line as PDF. It is not very technical, but describes
+what memory protection is and why it is important. It can be found here:
+http://www.linux-magazine.com/issue/40
+
diff --git a/default/paxtest/anonmap.c b/default/paxtest/anonmap.c
new file mode 100644
index 0000000..626e5eb
--- /dev/null
+++ b/default/paxtest/anonmap.c
@@ -0,0 +1,42 @@
+/* anonmap.c - Tests whether code can be executed in anonymous mappings
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable anonymous mapping ";
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+void doit( void )
+{
+ char *buf;
+ fptr func;
+
+ buf = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+ if( buf == MAP_FAILED ) {
+ fprintf( stderr, "mmap() returned NULL\n" );
+ exit( 1 );
+ }
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/body.c b/default/paxtest/body.c
new file mode 100644
index 0000000..a85046b
--- /dev/null
+++ b/default/paxtest/body.c
@@ -0,0 +1,109 @@
+/* body.c - This part is shared by the test programs (except for the randomisation
+ * tests)
+ *
+ * Copyright (c)2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <pthread.h>
+#include <unistd.h>
+
+extern int doit( void );
+extern const char testname[];
+
+static void *test_thread(void *p)
+{
+ pause();
+ return NULL;
+}
+
+int main( int argc, char *argv[] )
+{
+ int status;
+ char *mode;
+ /* This defaults to 1 as a safety mechanism. It is better to fail in
+ * blackhat mode, because kiddie mode can produce overly optimistic
+ * results.
+ */
+ int paxtest_mode = 1;
+
+ /* Dummy nested function */
+ void dummy(void) {}
+
+ mode = getenv( "PAXTEST_MODE" );
+ if( mode == NULL ) {
+ paxtest_mode = 1;
+ } else {
+ if( strcmp(mode,"0") == 0 ) {
+ paxtest_mode = 0;
+ } else if( strcmp(mode,"1") == 0 ) {
+ paxtest_mode = 1;
+ }
+ }
+
+ printf( "%s: ", testname );
+ fflush( stdout );
+
+ if( fork() == 0 ) {
+ /* Perform a dirty (but not unrealistic) trick to circumvent
+ * the kernel protection.
+ */
+ if( paxtest_mode == 1 ) {
+ pthread_t thread;
+ pthread_create(&thread, NULL, test_thread, dummy);
+ doit();
+ pthread_kill(thread, SIGTERM);
+ } else {
+ doit();
+ }
+ } else {
+ wait( &status );
+ if( WIFEXITED(status) == 0 ) {
+ printf( "Killed\n" );
+ exit( 0 );
+ }
+ }
+
+ exit( 0 );
+}
+
+void itworked( void )
+{
+ printf( "Vulnerable\n" );
+ exit( 1 );
+}
+
+void itfailed( void )
+{
+ printf( "Ok\n" );
+ exit( 2 );
+}
+
+
+int do_mprotect( const void *addr, size_t len, int prot )
+{
+ void *ptr;
+ int retval;
+ long PAGESIZE = sysconf(_SC_PAGESIZE);
+
+ /* Allign to a multiple of PAGESIZE, assumed to be a power of two */
+ ptr = (char *)(((unsigned long) addr) & ~(PAGESIZE-1));
+
+ retval = mprotect( ptr, len, prot );
+ if( retval != 0 && errno == EINVAL ) {
+ perror( "could not mprotect():" );
+ exit( 1 );
+ }
+
+ return retval;
+}
+
diff --git a/default/paxtest/body.h b/default/paxtest/body.h
new file mode 100644
index 0000000..36ed9d2
--- /dev/null
+++ b/default/paxtest/body.h
@@ -0,0 +1,4 @@
+void itworked( void );
+void itfailed( void );
+int do_mprotect( const void *addr, size_t len, int prot );
+typedef void (*fptr)(void);
diff --git a/default/paxtest/chpax-0.7/Changelog b/default/paxtest/chpax-0.7/Changelog
new file mode 100644
index 0000000..4524616
--- /dev/null
+++ b/default/paxtest/chpax-0.7/Changelog
@@ -0,0 +1,21 @@
+ *
+ * Nov 2002 : Added multi{options,files} cmdline, zeroflag, nicer output
+ * (+ double output if flags are changed and -v is specified), more error
+ * handling, more explicit error messages and return values
+ *
+ * Jan 2003 : Packaging, Port to Sparc/ELF64 : flags now stand in e_ident[EI_PAX] and
+ * e_ident[EI_PAX + 1], old chpax version is needed for clearing old flags .
+ *
+ * Feb 2003: Added alpha support.
+ *
+ * Mar 2003: Added parisc support.
+ *
+ * Apr 2003: Added ppc support.
+ *
+ * Oct 2003: Added amd64, ia64 and make install support, short format flags printout.
+ *
+ * Dec 2003: Added mips and mips64 support.
+ *
+ * Feb 2004: Added PT_PAX_FLAGS support.
+ *
+ * Jun 2004: Fixed elf.h include, uses glibc's version now, added ppc64 support.
diff --git a/default/paxtest/chpax-0.7/Makefile b/default/paxtest/chpax-0.7/Makefile
new file mode 100644
index 0000000..4b907b1
--- /dev/null
+++ b/default/paxtest/chpax-0.7/Makefile
@@ -0,0 +1,33 @@
+##
+## Makefile for chpax.c
+##
+## The PaX project : http://pax.grsecurity.net/
+##
+
+SRC = chpax.c io.c elf32.c elf64.c aout.c flags.c
+OBJ = $(SRC:.c=.o)
+RM = rm -f
+TARGET = chpax
+CC = gcc
+CFLAGS = -Wall -W -g3
+STRIP = strip
+#STRIP = touch
+CP = cp
+DESTDIR =
+MANDIR = /usr/share/man/man1/
+MKDIR = mkdir -p
+
+all : $(OBJ)
+ $(CC) $(CFLAGS) $(OBJ) -o $(TARGET)
+
+install : all
+ $(STRIP) $(TARGET)
+ $(MKDIR) $(DESTDIR)/sbin/ $(DESTDIR)$(MANDIR)
+ $(CP) $(TARGET) $(DESTDIR)/sbin/
+ $(CP) $(TARGET).1 $(DESTDIR)$(MANDIR)
+
+clean :
+ $(RM) *.o *~ \#* *\#
+
+fclean : clean
+ $(RM) $(TARGET)
diff --git a/default/paxtest/chpax-0.7/README b/default/paxtest/chpax-0.7/README
new file mode 100644
index 0000000..5c3c7cd
--- /dev/null
+++ b/default/paxtest/chpax-0.7/README
@@ -0,0 +1,11 @@
+
+ -----------------
+ CHPAX README FILE
+ -----------------
+
+As you can see, chpax has been partially rewritten . Since ELF64 is now
+supported (so that we match the Linux-PAX/sparc64 needs), we had to start
+a modularization of the code .
+
+For all the technical details about the improvements, check the
+Changelog file .
diff --git a/default/paxtest/chpax-0.7/aout.c b/default/paxtest/chpax-0.7/aout.c
new file mode 100644
index 0000000..26ba7b5
--- /dev/null
+++ b/default/paxtest/chpax-0.7/aout.c
@@ -0,0 +1,18 @@
+/*
+** aout.c for chpax
+**
+** The PaX project : http://pax.grsecurity.net/
+**
+*/
+#include "chpax.h"
+
+
+unsigned long get_flags_aout()
+{
+ return (N_FLAGS(header_aout));
+}
+
+void put_flags_aout(unsigned long flags)
+{
+ N_SET_FLAGS(header_aout, flags & ~HF_PAX_RANDMMAP);
+}
diff --git a/default/paxtest/chpax-0.7/chpax.1 b/default/paxtest/chpax-0.7/chpax.1
new file mode 100644
index 0000000..5d6e144
--- /dev/null
+++ b/default/paxtest/chpax-0.7/chpax.1
@@ -0,0 +1,80 @@
+.\" -*- nroff -*-
+.\"
+.\" chpax.1
+.\"
+.\" This program was written by
+.\" The PaX Team <pageexec@xxxxxxxxxxx>
+.\"
+.\" This manpage was created by:
+.\" Martin Krafft <madduck@xxxxxxxxxx<
+.\"
+.\" The license of this manpage is "Do what you want, but do it right!"
+.\"
+.TH chpax 1 .\" "chpax Manual" "Feb 12, 2003"
+.SH NAME
+\fB chpax \fR - user-space utility to control PaX flags
+.SH SYNTAX
+\fB chpax \fR [-PpEeMmRrXxSsvz] <FILE1> [<FILE2> ...]
+.SH DESCRIPTION
+\fBchpax\fR is a tool that allows PaX flags to be modified
+on a per-binary basis. PaX is part of common security-enhancing
+kernel patches, like GrSecurity. Your system needs to be
+running an appropriately patched kernel for this program to
+have any effect.
+.TP
+\fB-P\fR
+enforce paging based non-executable pages
+.TP
+\fB-p\fR
+do not enforce paging based non-executable pages
+.TP
+\fB-E\fR
+emulate trampolines
+.TP
+\fB-e\fR
+do not emulate trampolines
+.TP
+\fB-M\fR
+restrict mprotect()
+.TP
+\fB-m\fR
+do not restrict mprotect()
+.TP
+\fB-R\fR
+randomize mmap() base
+.TP
+\fB-r\fR
+do not randomize mmap() base
+.TP
+\fB-X\fR
+randomize ET_EXEC base
+.TP
+\fB-x\fR
+do not randomize ET_EXEC base
+.TP
+\fB-S\fR
+enforce segmentation based non-executable pages
+.TP
+\fB-s\fR
+do not enforce segmentation based non-executable pages
+.TP
+\fB-v\fR
+view current flag mask
+.TP
+\fB-z\fR
+zero flag mask (next flags still apply)
+.SH CAVEATS
+\fBchpax\fR does not currently parse standard command line arguments. Only the
+first argument is parsed, and it must contain all of the above flags you
+wish to use. So, instead of, e.g., "-v -p -r" you have to use "-vpr".
+.SH AUTHOR
+Written by The PaX Team <pageexec@xxxxxxxxxxx>
+.PP
+This manpage was written by Martin F. Krafft <madduck@xxxxxxxxxx>
+for the Debian GNU/Linux Distribution, but may be used by others.
+.SH "SEE ALSO"
+.BR gradm (1)
+.PP
+The PaX website: http://pax.grsecurity.net
+.PP
+The GrSecurity website: http://www.grsecurity.net
diff --git a/default/paxtest/chpax-0.7/chpax.c b/default/paxtest/chpax-0.7/chpax.c
new file mode 100644
index 0000000..42ba7b4
--- /dev/null
+++ b/default/paxtest/chpax-0.7/chpax.c
@@ -0,0 +1,97 @@
+/*
+ * chpax version 0.7
+ *
+ * This program manages various PaX related flags for ELF32, ELF64,
+ * and a.out binaries. The flags only have effect when running the
+ * patched Linux kernel.
+ *
+ * Written by Solar Designer and placed in the public domain.
+ *
+ * Adapted to PaX by the PaX Team
+ *
+ * Maintained by [jv@xxxxxxxxxxxxxx]
+ *
+ */
+#include "chpax.h"
+
+Elf32_Ehdr header_elf;
+Elf64_Ehdr header_elf64;
+struct exec header_aout;
+int header_size;
+void *header;
+int fd;
+unsigned long (*get_flags)();
+void (*put_flags)(unsigned long);
+
+
+int main(int argc, char *argv[])
+{
+ unsigned long flags;
+ unsigned long aflags;
+ unsigned int index = 2;
+ int mode;
+ char *current;
+ int error = 0;
+ int view = 0;
+
+ if (!argv)
+ usage(NULL);
+ if (argc < 3 || !argv[1] || argv[1][0] != '-')
+ usage(argv[0]);
+
+ flags = scan_flags(0, argv, &view);
+ mode = view & !flags ? O_RDONLY : O_RDWR;
+
+ for (current = argv[index]; current; current = argv[++index])
+ {
+
+ error = read_header(current, mode);
+ switch (error)
+ {
+ case 1:
+ perror(current);
+ continue ;
+ case 2:
+ fprintf(stderr, "%s: Unknown file type (passed) \n", current);
+ XCLOSE(fd);
+ continue ;
+ case 3:
+ fprintf(stderr, "%s: Wrong architecture (passed) \n", current);
+ XCLOSE(fd);
+ continue ;
+ }
+
+ aflags = get_flags();
+ flags = scan_flags(aflags, argv, &view);
+
+ if (view)
+ {
+ printf("\n----[ chpax %s : Current flags for %s (%s) ]---- \n\n",
+ CHPAX_VERSION, current, pax_short_flags(aflags));
+ print_flags(aflags);
+ puts("");
+ }
+
+ put_flags(flags);
+
+ if (flags != aflags && write_header())
+ {
+ perror(current);
+ error = 4;
+ }
+
+ if (error)
+ fprintf(stderr, "%s : Flags were not updated . \n", current);
+ else if (view && aflags != flags)
+ {
+ printf("\n----[ chpax %s : Updated flags for %s (%s) ]---- \n\n",
+ CHPAX_VERSION, current, pax_short_flags(flags));
+ print_flags(flags);
+ puts("");
+ }
+
+ XCLOSE(fd);
+ }
+
+ return (error);
+}
diff --git a/default/paxtest/chpax-0.7/chpax.h b/default/paxtest/chpax-0.7/chpax.h
new file mode 100644
index 0000000..5b03a08
--- /dev/null
+++ b/default/paxtest/chpax-0.7/chpax.h
@@ -0,0 +1,77 @@
+/*
+ * Include file for chpax.c
+ *
+ * The PaX project : http://pax.grsecurity.net/
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <elf.h>
+#include <a.out.h>
+
+#define CHPAX_VERSION "0.7"
+
+#define HF_PAX_PAGEEXEC 1 /* 0: Paging based non-exec pages */
+#define HF_PAX_EMUTRAMP 2 /* 0: Emulate trampolines */
+#define HF_PAX_MPROTECT 4 /* 0: Restrict mprotect() */
+#define HF_PAX_RANDMMAP 8 /* 0: Randomize mmap() base */
+#define HF_PAX_RANDEXEC 16 /* 1: Randomize ET_EXEC base */
+#define HF_PAX_SEGMEXEC 32 /* 0: Segmentation based non-exec pages */
+
+#define EI_PAX 14 /* Index to read the PaX flags into ELF header e_ident[] array */
+
+#ifndef PT_PAX_FLAGS
+#define PT_PAX_FLAGS 0x65041580 /* Indicates PaX flag markings */
+#define PF_PAGEEXEC (1 << 4) /* Enable PAGEEXEC */
+#define PF_NOPAGEEXEC (1 << 5) /* Disable PAGEEXEC */
+#define PF_SEGMEXEC (1 << 6) /* Enable SEGMEXEC */
+#define PF_NOSEGMEXEC (1 << 7) /* Disable SEGMEXEC */
+#define PF_MPROTECT (1 << 8) /* Enable MPROTECT */
+#define PF_NOMPROTECT (1 << 9) /* Disable MPROTECT */
+#define PF_RANDEXEC (1 << 10) /* Enable RANDEXEC */
+#define PF_NORANDEXEC (1 << 11) /* Disable RANDEXEC */
+#define PF_EMUTRAMP (1 << 12) /* Enable EMUTRAMP */
+#define PF_NOEMUTRAMP (1 << 13) /* Disable EMUTRAMP */
+#define PF_RANDMMAP (1 << 14) /* Enable RANDMMAP */
+#define PF_NORANDMMAP (1 << 15) /* Disable RANDMMAP */
+#endif
+
+#define XCLOSE(fd) \
+do \
+{ \
+ if (close(fd)) \
+ perror("close"); \
+} \
+while (0)
+
+#define FILE_IS_ELF64(h) (h.e_ident[EI_CLASS] == 2)
+#define FILE_IS_ELF32(h) (h.e_ident[EI_CLASS] == 1)
+
+/* Extern variables */
+extern Elf32_Ehdr header_elf;
+extern Elf64_Ehdr header_elf64;
+extern struct exec header_aout;
+extern int header_size;
+extern void *header;
+extern int fd;
+extern unsigned long (*get_flags)();
+extern void (*put_flags)(unsigned long);
+
+/* Function prototypes */
+int read_header(char *name, int flags);
+int write_header();
+unsigned long get_flags_elf();
+void put_flags_elf(unsigned long flags);
+unsigned long get_flags_aout();
+void put_flags_aout(unsigned long flags);
+unsigned long get_flags_elf64();
+void put_flags_elf64(unsigned long flags);
+void usage(char *name);
+unsigned long scan_flags(unsigned long flags, char **argv, int *view);
+void print_flags(unsigned long flags);
+char *pax_short_flags(unsigned long flags);
diff --git a/default/paxtest/chpax-0.7/elf32.c b/default/paxtest/chpax-0.7/elf32.c
new file mode 100644
index 0000000..50208aa
--- /dev/null
+++ b/default/paxtest/chpax-0.7/elf32.c
@@ -0,0 +1,22 @@
+/*
+** elf32.c for chpax
+**
+** The PaX project : http://pax.grsecurity.net/
+**
+*/
+#include "chpax.h"
+
+
+unsigned long get_flags_elf()
+{
+ u_long flags;
+
+ flags = ((u_long) header_elf.e_ident[EI_PAX + 1] << 8) + (u_long) header_elf.e_ident[EI_PAX];
+ return (flags);
+}
+
+void put_flags_elf(unsigned long flags)
+{
+ header_elf.e_ident[EI_PAX] = (flags & 0xFF);
+ header_elf.e_ident[EI_PAX + 1] = ((flags >> 8) & 0xFF);
+}
diff --git a/default/paxtest/chpax-0.7/elf64.c b/default/paxtest/chpax-0.7/elf64.c
new file mode 100644
index 0000000..6633190
--- /dev/null
+++ b/default/paxtest/chpax-0.7/elf64.c
@@ -0,0 +1,22 @@
+/*
+** elf64.c for chpax
+**
+** The PaX project : http://pax.grsecurity.net/
+**
+*/
+#include "chpax.h"
+
+unsigned long get_flags_elf64()
+{
+ u_long flags;
+
+ flags = ((u_long) header_elf64.e_ident[EI_PAX + 1] << 8) + (u_long) header_elf.e_ident[EI_PAX];
+ return (flags);
+}
+
+void put_flags_elf64(unsigned long flags)
+{
+ header_elf64.e_ident[EI_PAX] = (flags & 0xFF);
+ header_elf64.e_ident[EI_PAX + 1] = ((flags >> 8) & 0xFF);
+}
+
diff --git a/default/paxtest/chpax-0.7/flags.c b/default/paxtest/chpax-0.7/flags.c
new file mode 100644
index 0000000..73e9c8a
--- /dev/null
+++ b/default/paxtest/chpax-0.7/flags.c
@@ -0,0 +1,147 @@
+/*
+** flags.c for chpax
+**
+** The PaX project : http://pax.grsecurity.net/
+**
+*/
+#include "chpax.h"
+
+
+#define USAGE \
+"%s %s .::. Manage PaX flags for binaries\n" \
+"Usage: %s OPTIONS FILE1 FILE2 FILEN ...\n" \
+" -P\tenforce paging based non-executable pages\n" \
+" -p\tdo not enforce paging based non-executable pages\n" \
+" -E\temulate trampolines\n" \
+" -e\tdo not emulate trampolines\n" \
+" -M\trestrict mprotect()\n" \
+" -m\tdo not restrict mprotect()\n" \
+" -R\trandomize mmap() base [ELF only]\n" \
+" -r\tdo not randomize mmap() base [ELF only]\n" \
+" -X\trandomize ET_EXEC base [ELF only]\n" \
+" -x\tdo not randomize ET_EXEC base [ELF only]\n" \
+" -S\tenforce segmentation based non-executable pages\n" \
+" -s\tdo not enforce segmentation based non-executable pages\n" \
+" -v\tview current flag mask \n" \
+" -z\tzero flag mask (next flags still apply)\n\n" \
+"The flags only have effect when running the patched Linux kernel.\n" \
+
+
+void usage(char *name)
+{
+ char *ptr;
+
+ ptr = (name ? name : "chpax");
+ printf(USAGE, ptr, CHPAX_VERSION, ptr);
+ exit(1);
+}
+
+
+unsigned long scan_flags(unsigned long flags, char **argv, int *view)
+{
+ int index;
+
+ for (index = 1; argv[1][index]; index++)
+ switch (argv[1][index])
+ {
+
+ case 'p':
+ flags |= HF_PAX_PAGEEXEC;
+ continue ;
+
+ case 'P':
+ flags = (flags & ~HF_PAX_PAGEEXEC) | HF_PAX_SEGMEXEC;
+ continue ;
+
+ case 'E':
+ flags |= HF_PAX_EMUTRAMP;
+ continue ;
+
+ case 'e':
+ flags = (flags & ~HF_PAX_EMUTRAMP);
+ continue ;
+
+ case 'm':
+ flags |= HF_PAX_MPROTECT;
+ continue ;
+
+ case 'M':
+ flags = (flags & ~HF_PAX_MPROTECT);
+ continue ;
+
+ case 'r':
+ flags |= HF_PAX_RANDMMAP;
+ continue ;
+
+ case 'R':
+ flags = (flags & ~HF_PAX_RANDMMAP);
+ continue ;
+
+ case 'X':
+ flags |= HF_PAX_RANDEXEC;
+ continue ;
+
+ case 'x':
+ flags = (flags & ~HF_PAX_RANDEXEC);
+ continue ;
+
+ case 's':
+ flags |= HF_PAX_SEGMEXEC;
+ continue ;
+
+ case 'S':
+ flags = (flags & ~HF_PAX_SEGMEXEC) | HF_PAX_PAGEEXEC;
+ continue ;
+
+ case 'v':
+ *view = 1;
+ continue ;
+
+ case 'z':
+ flags = 0;
+ continue ;
+
+ default:
+ fprintf(stderr, "Unknown option %c \n", argv[1][index]);
+ usage(argv[0]);
+ }
+
+ return (flags);
+}
+
+
+char *pax_short_flags(unsigned long flags)
+{
+ static char buffer[7];
+
+ buffer[0] = (flags & HF_PAX_PAGEEXEC ? 'p' : 'P');
+ buffer[1] = (flags & HF_PAX_EMUTRAMP ? 'E' : 'e');
+ buffer[2] = (flags & HF_PAX_MPROTECT ? 'm' : 'M');
+ buffer[3] = (flags & HF_PAX_RANDMMAP ? 'r' : 'R');
+ buffer[4] = (flags & HF_PAX_RANDEXEC ? 'X' : 'x');
+ buffer[5] = (flags & HF_PAX_SEGMEXEC ? 's' : 'S');
+ return buffer;
+}
+
+
+void print_flags(unsigned long flags)
+{
+ printf(" * Paging based PAGE_EXEC : %s \n"
+ " * Trampolines : %s \n"
+ " * mprotect() : %s \n"
+ " * mmap() base : %s \n"
+ " * ET_EXEC base : %s \n"
+ " * Segmentation based PAGE_EXEC : %s \n",
+ flags & HF_PAX_PAGEEXEC
+ ? "disabled" : flags & HF_PAX_SEGMEXEC ? "enabled" : "enabled (overridden)",
+ flags & HF_PAX_EMUTRAMP
+ ? "emulated" : "not emulated",
+ flags & HF_PAX_MPROTECT
+ ? "not restricted" : "restricted",
+ flags & HF_PAX_RANDMMAP
+ ? "not randomized" : "randomized",
+ flags & HF_PAX_RANDEXEC
+ ? "randomized" : "not randomized",
+ flags & HF_PAX_SEGMEXEC
+ ? "disabled" : "enabled");
+}
diff --git a/default/paxtest/chpax-0.7/io.c b/default/paxtest/chpax-0.7/io.c
new file mode 100644
index 0000000..0c8d78d
--- /dev/null
+++ b/default/paxtest/chpax-0.7/io.c
@@ -0,0 +1,118 @@
+/*
+** io.c for chpax
+**
+** The PaX project : http://pax.grsecurity.net/
+**
+*/
+#include "chpax.h"
+
+#ifndef EM_X86_64
+#define EM_X86_64 62
+#endif
+
+/* Read flags */
+int read_header(char *name, int flags)
+{
+ char *ptr;
+ int size;
+ int block;
+
+ if ((fd = open(name, flags)) < 0)
+ return 1;
+
+ ptr = (char *) &header_elf64;
+ size = sizeof(header_elf64);
+
+ do
+ {
+ block = read(fd, ptr, size);
+ if (block <= 0)
+ return (block ? 1 : 2);
+ ptr += block;
+ size -= block;
+ }
+ while (size > 0);
+
+ memcpy(&header_aout, &header_elf64, sizeof(header_aout));
+ memcpy(&header_elf, &header_elf64, sizeof(header_elf));
+
+ if (!memcmp(header_elf64.e_ident, ELFMAG, SELFMAG) && FILE_IS_ELF64(header_elf64))
+ {
+ if (header_elf64.e_type != ET_EXEC && header_elf.e_type != ET_DYN)
+ return 2;
+ if (header_elf64.e_machine != EM_SPARC &&
+ header_elf64.e_machine != EM_SPARCV9 &&
+ header_elf64.e_machine != EM_ALPHA &&
+ header_elf64.e_machine != EM_X86_64 &&
+ header_elf64.e_machine != EM_IA_64 &&
+ header_elf64.e_machine != EM_PPC64)
+ return 3;
+ header = &header_elf64;
+ header_size = sizeof(header_elf64);
+ get_flags = get_flags_elf64;
+ put_flags = put_flags_elf64;
+ }
+
+ else if (!memcmp(header_elf.e_ident, ELFMAG, SELFMAG) && FILE_IS_ELF32(header_elf))
+ {
+ if (header_elf.e_type != ET_EXEC && header_elf.e_type != ET_DYN)
+ return 2;
+ if (header_elf.e_machine != EM_386 &&
+ header_elf.e_machine != EM_SPARC &&
+ header_elf.e_machine != EM_SPARC32PLUS &&
+ header_elf.e_machine != EM_PARISC &&
+ header_elf.e_machine != EM_PPC &&
+ header_elf.e_machine != EM_MIPS &&
+ header_elf.e_machine != EM_MIPS_RS3_LE)
+ return 3;
+ header = &header_elf;
+ header_size = sizeof(header_elf);
+ get_flags = get_flags_elf;
+ put_flags = put_flags_elf;
+ }
+
+ else if (N_MAGIC(header_aout) == NMAGIC ||
+ N_MAGIC(header_aout) == ZMAGIC ||
+ N_MAGIC(header_aout) == QMAGIC)
+ {
+
+ if (N_MACHTYPE(header_aout) != M_386)
+ return 3;
+ header = &header_aout;
+ header_size = 4;
+ get_flags = get_flags_aout;
+ put_flags = put_flags_aout;
+ }
+
+ else
+ return (2);
+
+ return (0);
+}
+
+
+/* Write flags */
+int write_header()
+{
+ char *ptr;
+ int size;
+ int block;
+
+ if ((off_t)-1 == lseek(fd, 0, SEEK_SET))
+ return 1;
+
+ ptr = (char *) header;
+ size = header_size;
+
+ do
+ {
+ block = write(fd, ptr, size);
+ if (block <= 0)
+ break;
+ ptr += block;
+ size -= block;
+ }
+ while (size > 0);
+
+ return size;
+}
diff --git a/default/paxtest/crt1S.S b/default/paxtest/crt1S.S
new file mode 100644
index 0000000..c98b95e
--- /dev/null
+++ b/default/paxtest/crt1S.S
@@ -0,0 +1,57 @@
+ .text
+ .globl _start
+ .type _start,@function
+_start:
+ popl %esi
+ movl %esp, %ecx
+ andl $0xfffffff0, %esp
+ call .L1
+.L1:
+ pop %ebp
+ addl $_GLOBAL_OFFSET_TABLE_+[.-.L1],%ebp
+ pushl %eax
+ pushl %esp
+ pushl %edx
+ pushl _fini@GOT(%ebp)
+ pushl _init@GOT(%ebp)
+ pushl %ecx
+ pushl %esi
+ pushl main@GOT(%ebp)
+ pushl .hlt@GOT(%ebp)
+ pushl __libc_start_main@GOT(%ebp)
+ xorl %ebp, %ebp
+ ret
+.hlt:
+ hlt
+
+ .section .rodata
+ .globl _fp_hw
+_fp_hw: .long 3
+ .size _fp_hw, 4
+ .type _fp_hw,@object
+
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
+ .weak data_start
+ data_start = __data_start
+
+ .section ".note.ABI-tag", "a"
+ .align 4
+ .long 1f - 0f
+ .long 3f - 2f
+ .long 1
+0: .asciz "GNU"
+1: .align 4
+2: .long 0
+ .long 2,0,0
+3: .align 4
+
+ .section .rodata
+ .globl _IO_stdin_used
+ .align 4
+_IO_stdin_used:
+ .long 0x20001
+ .size _IO_stdin_used,4
+ .type _IO_stdin_used,@object
diff --git a/default/paxtest/debian/changelog b/default/paxtest/debian/changelog
new file mode 100644
index 0000000..b9f4872
--- /dev/null
+++ b/default/paxtest/debian/changelog
@@ -0,0 +1,75 @@
+paxtest (0.9.9--3) stable; urgency=low
+ * fixed Makefile to use -nopie for Gentoo Hardened on ET_EXEC tests
+
+paxtest (0.9.9-2) stable; urgency=low
+ * fixed writable text segments test under gcc 4.5 optimizations
+
+paxtest (0.9.9-1) stable; urgency=low
+ * added SPARC/64 support
+ * added PPC/64 support (return to function tests should be ignored for PPC64)
+ * added 32/64bit target support
+ * added shellode.h to easily support additional architectures
+ * made paxctl generate the PT_PAX_FLAGS header for binaries that
+ didn't have one
+
+paxtest (0.9.7-1) stable; urgency=low
+ * Fixed some tests on OpenBSD and FreeBSD (thanks to paxtest@xxxxxxxxx
+ and mux@xxxxxxxxxxx)
+ * Fixed return address acquisition, still gcc specific
+ * Switched to paxctl on gentoo
+ * Fixed setting up LD_LIBRARY_PATH in genpaxtest (Peter S. Mazinger)
+ * Added uClibc support (Peter S. Mazinger)
+ * Fixed the executable shared library data/bss tests (thanks to
+ paxtest@xxxxxxxxx)
+
+paxtest (0.9.6-1) stable; urgency=low
+
+ * Made the do_mprotect() call in body.c optional, thereby introducing two
+ modes: script kiddie mode (which does not perform the do_mprotect()) and
+ blackhat mode, which does.
+ * Added a README file
+ * Added Adamantix paxtest results
+ * Removed -etdyn from the Adamantix make file
+ * Replaced mprotect() in body.c with pthread calls (which eventually have
+ the same result)
+ * Added a nested function, to measure the effect of nested functions on the
+ level of protection.
+ * Added paxtest result from Gentoo hardened (thanks to Ned Ludd)
+ * Added a new Makefile for Gentoo (thanks to Ned Ludd)
+ * Fixed spelling errors (thanks to pageexec@xxxxxxxxxxx)
+
+ -- Peter Busser <peter@xxxxxxxxxxxxxxxxxxxx> Wed, 25 Feb 2004 20:24:53 +0200
+
+paxtest (0.9.5-1) unstable; urgency=low
+
+ * Fixed the shlibbss and shlibdata tests (pageexec@xxxxxxxxxxx)
+ * Non-executable page tests expose incomplete implementations
+ (pageexec@xxxxxxxxxxx)
+
+ -- Peter Busser <peter@xxxxxxxxxxxxx> Tue, 04 Nov 2003 16:37:26 +0200
+
+paxtest (0.9.4-1) unstable; urgency=low
+
+ * Fixed mprotanon (pageexec@xxxxxxxxxxx)
+ * Fixed rettofunc[12] (pageexec@xxxxxxxxxxx)
+ * Fixed shared library data/bss tests (pageexec@xxxxxxxxxxx)
+ * Introduced return-to-libc detection as proof-of-concept
+ (pageexec@xxxxxxxxxxx)
+
+ -- Peter Busser <peter@xxxxxxxxxxxxx> Tue, 22 Oct 2003 21:00:05 +0200
+
+paxtest (0.9.3-1) unstable; urgency=low
+
+ * Changed e-mail addresses in source files to peter@xxxxxxxxxxxxx
+ * Added copyright message printing in the run script.
+ * Upgraded to chpax v0.5 (pageexec@xxxxxxxxxxx)
+ * Split randheap in two parts, one as ET_EXEC and the other as ET_DYN
+
+ -- Peter Busser <peter@xxxxxxxxxxxxx> Sun, 12 Oct 2003 10:58:52 +0200
+
+paxtest (0.9.0-1) unstable; urgency=low
+
+ * Initial Release.
+
+ -- Peter Busser <peter@xxxxxxxxxxxxxxxxx> Mon, 19 May 2003 13:44:39 +0200
+
diff --git a/default/paxtest/debian/control b/default/paxtest/debian/control
new file mode 100644
index 0000000..194da0e
--- /dev/null
+++ b/default/paxtest/debian/control
@@ -0,0 +1,24 @@
+Source: paxtest
+Section: main
+Priority: optional
+Maintainer: Peter Busser <peter@xxxxxxxxxxxxx>
+Build-Depends: debhelper (>> 3.0.0), gcc, binutils
+Standards-Version: 3.5.2
+
+Package: paxtest
+Architecture: i386
+Depends: ${shlibs:Depends}
+Description: a-: Test suite for the PaX kernel patch
+ PaX is a Linux kernel patch which adds much stricter control on how memory
+ is being used by applications. A normal Linux kernel leaves the control to the
+ application and does not implement any enforcement. Especially buffer overflow
+ attacks benefit from the absense of kernel enforced memory control. PaX tries
+ to do its best to enforce this control of memory used by applications, thereby
+ making it harder to successfully exploit buffer overflows.
+ .
+ Paxtest provides a regression test suite that covers most (but not all)
+ of PaX functionality. It can also be used to test other memory protection
+ patches.
+ .
+ For more information about PaX, see http://pax.grsecurity.net/.
+
diff --git a/default/paxtest/debian/copyright b/default/paxtest/debian/copyright
new file mode 100644
index 0000000..862ec95
--- /dev/null
+++ b/default/paxtest/debian/copyright
@@ -0,0 +1,8 @@
+paxtest is copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+
+Paxtest is licened under the terms of the GNU General Public License (GPL),
+version 2.0 or later, as published by the Free Software Foundation. See
+the file COPYING [included], /usr/share/common-licenses/GPL, or
+<http://www.gnu.org/copyleft/gpl.txt> for the terms of the latest version
+of the GNU General Public License.
+
diff --git a/default/paxtest/debian/dirs b/default/paxtest/debian/dirs
new file mode 100644
index 0000000..ca882bb
--- /dev/null
+++ b/default/paxtest/debian/dirs
@@ -0,0 +1,2 @@
+usr/bin
+usr/sbin
diff --git a/default/paxtest/debian/docs b/default/paxtest/debian/docs
new file mode 100644
index 0000000..5b5d593
--- /dev/null
+++ b/default/paxtest/debian/docs
@@ -0,0 +1,5 @@
+COPYING
+README
+results/Results.README
+results/Adamantix.kiddie
+results/Adamantix.blackhat
diff --git a/default/paxtest/debian/manpage.1.ex b/default/paxtest/debian/manpage.1.ex
new file mode 100644
index 0000000..125432b
--- /dev/null
+++ b/default/paxtest/debian/manpage.1.ex
@@ -0,0 +1,60 @@
+.\" Hey, EMACS: -*- nroff -*-
+.\" First parameter, NAME, should be all caps
+.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
+.\" other parameters are allowed: see man(7), man(1)
+.TH PAXTEST SECTION "May 19, 2003"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh disable hyphenation
+.\" .hy enable hyphenation
+.\" .ad l left justify
+.\" .ad b justify to both left and right margins
+.\" .nf disable filling
+.\" .fi enable filling
+.\" .br insert line break
+.\" .sp <n> insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+paxtest \- program to do something
+.SH SYNOPSIS
+.B paxtest
+.RI [ options ] " files" ...
+.br
+.B bar
+.RI [ options ] " files" ...
+.SH DESCRIPTION
+This manual page documents briefly the
+.B paxtest
+and
+.B bar
+commands.
+This manual page was written for the Debian distribution
+because the original program does not have a manual page.
+Instead, it has documentation in the GNU Info format; see below.
+.PP
+.\" TeX users may be more comfortable with the \fB<whatever>\fP and
+.\" \fI<whatever>\fP escape sequences to invode bold face and italics,
+.\" respectively.
+\fBpaxtest\fP is a program that...
+.SH OPTIONS
+These programs follow the usual GNU command line syntax, with long
+options starting with two dashes (`-').
+A summary of options is included below.
+For a complete description, see the Info files.
+.TP
+.B \-h, \-\-help
+Show summary of options.
+.TP
+.B \-v, \-\-version
+Show version of program.
+.SH SEE ALSO
+.BR bar (1),
+.BR baz (1).
+.br
+The programs are documented fully by
+.IR "The Rise and Fall of a Fooish Bar" ,
+available via the Info system.
+.SH AUTHOR
+This manual page was written by Peter Busser <peter@dev>,
+for the Debian GNU/Linux system (but may be used by others).
diff --git a/default/paxtest/debian/manpage.sgml.ex b/default/paxtest/debian/manpage.sgml.ex
new file mode 100644
index 0000000..e878798
--- /dev/null
+++ b/default/paxtest/debian/manpage.sgml.ex
@@ -0,0 +1,152 @@
+<!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [
+
+<!-- Process this file with docbook-to-man to generate an nroff manual
+ page: `docbook-to-man manpage.sgml > manpage.1'. You may view
+ the manual page with: `docbook-to-man manpage.sgml | nroff -man |
+ less'. A typical entry in a Makefile or Makefile.am is:
+
+manpage.1: manpage.sgml
+ docbook-to-man $< > $@
+
+
+ The docbook-to-man binary is found in the docbook-to-man package.
+ Please remember that if you create the nroff version in one of the
+ debian/rules file targets (such as build), you will need to include
+ docbook-to-man in your Build-Depends control field.
+
+ -->
+
+ <!-- Fill in your name for FIRSTNAME and SURNAME. -->
+ <!ENTITY dhfirstname "<firstname>FIRSTNAME</firstname>">
+ <!ENTITY dhsurname "<surname>SURNAME</surname>">
+ <!-- Please adjust the date whenever revising the manpage. -->
+ <!ENTITY dhdate "<date>May 19, 2003</date>">
+ <!-- SECTION should be 1-8, maybe w/ subsection other parameters are
+ allowed: see man(7), man(1). -->
+ <!ENTITY dhsection "<manvolnum>SECTION</manvolnum>">
+ <!ENTITY dhemail "<email>peter@dev</email>">
+ <!ENTITY dhusername "Peter Busser">
+ <!ENTITY dhucpackage "<refentrytitle>PAXTEST</refentrytitle>">
+ <!ENTITY dhpackage "paxtest">
+
+ <!ENTITY debian "<productname>Debian</productname>">
+ <!ENTITY gnu "<acronym>GNU</acronym>">
+]>
+
+<refentry>
+ <refentryinfo>
+ <address>
+ &dhemail;
+ </address>
+ <author>
+ &dhfirstname;
+ &dhsurname;
+ </author>
+ <copyright>
+ <year>2001</year>
+ <holder>&dhusername;</holder>
+ </copyright>
+ &dhdate;
+ </refentryinfo>
+ <refmeta>
+ &dhucpackage;
+
+ &dhsection;
+ </refmeta>
+ <refnamediv>
+ <refname>&dhpackage;</refname>
+
+ <refpurpose>program to do something</refpurpose>
+ </refnamediv>
+ <refsynopsisdiv>
+ <cmdsynopsis>
+ <command>&dhpackage;</command>
+
+ <arg><option>-e <replaceable>this</replaceable></option></arg>
+
+ <arg><option>--example <replaceable>that</replaceable></option></arg>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+ <refsect1>
+ <title>DESCRIPTION</title>
+
+ <para>This manual page documents briefly the
+ <command>&dhpackage;</command> and <command>bar</command>
+ commands.</para>
+
+ <para>This manual page was written for the &debian; distribution
+ because the original program does not have a manual page.
+ Instead, it has documentation in the &gnu;
+ <application>Info</application> format; see below.</para>
+
+ <para><command>&dhpackage;</command> is a program that...</para>
+
+ </refsect1>
+ <refsect1>
+ <title>OPTIONS</title>
+
+ <para>These programs follow the usual GNU command line syntax,
+ with long options starting with two dashes (`-'). A summary of
+ options is included below. For a complete description, see the
+ <application>Info</application> files.</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><option>-h</option>
+ <option>--help</option>
+ </term>
+ <listitem>
+ <para>Show summary of options.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><option>-v</option>
+ <option>--version</option>
+ </term>
+ <listitem>
+ <para>Show version of program.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+ <refsect1>
+ <title>SEE ALSO</title>
+
+ <para>bar (1), baz (1).</para>
+
+ <para>The programs are documented fully by <citetitle>The Rise and
+ Fall of a Fooish Bar</citetitle> available via the
+ <application>Info</application> system.</para>
+ </refsect1>
+ <refsect1>
+ <title>AUTHOR</title>
+
+ <para>This manual page was written by &dhusername; &dhemail; for
+ the &debian; system (but may be used by others). Permission is
+ granted to copy, distribute and/or modify this document under
+ the terms of the <acronym>GNU</acronym> Free Documentation
+ License, Version 1.1 or any later version published by the Free
+ Software Foundation; with no Invariant Sections, no Front-Cover
+ Texts and no Back-Cover Texts.</para>
+
+ </refsect1>
+</refentry>
+
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:2
+sgml-indent-data:t
+sgml-parent-document:nil
+sgml-default-dtd-file:nil
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+-->
+
+
diff --git a/default/paxtest/debian/paxtest.sgml b/default/paxtest/debian/paxtest.sgml
new file mode 100644
index 0000000..65e90a0
--- /dev/null
+++ b/default/paxtest/debian/paxtest.sgml
@@ -0,0 +1,167 @@
+<!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [
+
+
+ <!-- Fill in your name for FIRSTNAME and SURNAME. -->
+ <!ENTITY dhfirstname "<firstname>Javier</firstname>">
+ <!ENTITY dhsurname "<surname>Fernandez-Sanguino</surname>">
+ <!-- Please adjust the date whenever revising the manpage. -->
+ <!ENTITY dhdate "<date>November 8, 2003</date>">
+ <!-- SECTION should be 1-8, maybe w/ subsection other parameters are
+ allowed: see man(7), man(1). -->
+ <!ENTITY dhsection "<manvolnum>1</manvolnum>">
+ <!ENTITY dhemail "<email>jfs@xxxxxxxxxxxx</email>">
+ <!ENTITY dhusername "Javier Fernandez-Sanguino">
+ <!ENTITY dhucpackage "<refentrytitle>PAXTEST</refentrytitle>">
+ <!ENTITY dhpackage "paxtest">
+
+ <!ENTITY debian "<productname>Debian</productname>">
+ <!ENTITY gnu "<acronym>GNU</acronym>">
+]>
+
+<refentry>
+ <refentryinfo>
+ <address>
+ &dhemail;
+ </address>
+ <author>
+ &dhfirstname;
+ &dhsurname;
+ </author>
+ <copyright>
+ <year>2003</year>
+ <holder>Peter Busser</holder>
+ </copyright>
+ &dhdate;
+ </refentryinfo>
+ <refmeta>
+ &dhucpackage;
+
+ &dhsection;
+ </refmeta>
+ <refnamediv>
+ <refname>&dhpackage;</refname>
+
+ <refpurpose>program to test buffer overflow protection</refpurpose>
+ </refnamediv>
+ <refsynopsisdiv>
+ <cmdsynopsis>
+ <command>&dhpackage;</command>
+
+ <arg><replaceable>logfile</replaceable></arg>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+ <refsect1>
+ <title>DESCRIPTION</title>
+
+ <para><command>&dhpackage;</command> is a program that attempts to
+ test kernel enforcements over memory usage. Some attacks benefit
+ from kernels that do not impose limitations. For example, execution
+ in some memory segments makes buffer overflows possible. It is
+ used as a regression test suite for PaX, but might be useful
+ to test other memory protection patches for the kernel.</para>
+
+ <para><command>&dhpackage;</command> runs a set of programs that
+ attempt to subvert memory usage. For example:
+ </para>
+
+ <literallayout>
+Executable anonymous mapping : Killed
+Executable bss : Killed
+Executable data : Killed
+Executable heap : Killed
+Executable stack : Killed
+Executable anonymous mapping (mprotect) : Killed
+Executable bss (mprotect) : Killed
+Executable data (mprotect) : Killed
+Executable heap (mprotect) : Killed
+Executable shared library bss (mprotect) : Killed
+Executable shared library data (mprotect): Killed
+Executable stack (mprotect) : Killed
+Anonymous mapping randomisation test : 16 bits (guessed)
+Heap randomisation test (ET_EXEC) : 13 bits (guessed)
+Heap randomisation test (ET_DYN) : 25 bits (guessed)
+Main executable randomisation (ET_EXEC) : No randomisation
+Main executable randomisation (ET_DYN) : 17 bits (guessed)
+Stack randomisation test (SEGMEXEC) : 23 bits (guessed)
+Stack randomisation test (PAGEEXEC) : 24 bits (guessed)
+Return to function (strcpy) : Vulnerable
+Return to function (strcpy, RANDEXEC) : Vulnerable
+Return to function (memcpy) : Vulnerable
+Return to function (memcpy, RANDEXEC) : Vulnerable
+Executable shared library bss : Killed
+Executable shared library data : Killed
+Writable text segments : Killed
+ </literallayout>
+
+ <para>The <quote>Executable ...</quote> tests basically put an instruction
+ in a place
+ that is supposed to be data (i.e. malloced data, C variable, etc.)
+ and tries to execute it. The <quote>(mprotect)</quote> tests try to trick
+ the kernel in marking this piece of memory as executable first.
+ Return to function tests overwrite the return address on the stack,
+ these are hard to prevent from inside the kernel.
+ The last test tries to overwrite memory which is marked as executable.
+ </para>
+
+ <para>A normal Linux kernel (unpatched to protect for buffer overflows)
+ will show all tests as Vulnerable and no stack
+ randomisation or 6 bits (due to stack colouring). In other words,
+ on a normal Linux kernel you can execute any data inside a process's
+ memory or overwrite any code at will.
+ </para>
+
+ <para>This manual page was written for the &debian; distribution
+ because the original program does not have a manual page.
+ </para>
+
+
+ </refsect1>
+ <refsect1>
+ <title>OPTIONS</title>
+
+ <para>This program takes only a single option: a file to which
+ log all the test results (by default it will log to stdin/stdout)
+ </para>
+ </refsect1>
+ <refsect1>
+ <title>SEE ALSO</title>
+
+ <para>For more information see
+ <ulink url="http://pax.grsecurity.net/docs";>PaX Documentation</ulink>.</para>
+
+ </refsect1>
+ <refsect1>
+ <title>AUTHOR</title>
+
+ <para>&dhpackage; was written by Peter Busser.</para>
+
+ <para>This manual page was written by &dhusername; &dhemail; for
+ the &debian; system (but may be used by others) based on the
+ information in the source code and Peter Busser's comments
+ sent to public mailing lists. Permission is
+ granted to copy, distribute and/or modify this document under
+ the terms of the <acronym>GNU</acronym> Public License, Version 2
+ or any later version published by the Free
+ Software Foundation.</para>
+
+ </refsect1>
+</refentry>
+
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:2
+sgml-indent-data:t
+sgml-parent-document:nil
+sgml-default-dtd-file:nil
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+-->
+
+
diff --git a/default/paxtest/debian/rules b/default/paxtest/debian/rules
new file mode 100644
index 0000000..aeb070b
--- /dev/null
+++ b/default/paxtest/debian/rules
@@ -0,0 +1,104 @@
+#!/usr/bin/make -f
+# Sample debian/rules that uses debhelper.
+# GNU copyright 1997 to 1999 by Joey Hess.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+# This is the debhelper compatibility version to use.
+export DH_COMPAT=3
+
+#
+# The directory where the test programs and shared library are going to live
+#
+RUNDIR=/usr/lib/paxtest
+export RUNDIR
+
+#
+# The directory where the test script (paxtest) is going to live
+#
+BINDIR=/usr/bin
+export BINDIR
+
+ifneq (,$(findstring debug,$(DEB_BUILD_OPTIONS)))
+ CFLAGS += -g
+endif
+ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
+ INSTALL_PROGRAM += -s
+endif
+
+configure: configure-stamp
+configure-stamp:
+ dh_testdir
+ # Add here commands to configure the package.
+
+ touch configure-stamp
+
+
+build: build-stamp
+
+build-stamp: configure-stamp
+ dh_testdir
+
+ # Add here commands to compile the package.
+ $(MAKE) -f Makefile.Adamantix
+ #/usr/bin/docbook-to-man debian/paxtest.sgml > paxtest.1
+
+ touch build-stamp
+
+clean:
+ dh_testdir
+ dh_testroot
+ rm -f build-stamp configure-stamp
+
+ # Add here commands to clean up after the build process.
+ -$(MAKE) -f Makefile.Adamantix clean
+
+ dh_clean
+
+install: build
+ dh_testdir
+ dh_testroot
+ dh_clean -k
+ dh_installdirs
+
+ # Add here commands to install the package into debian/paxtest.
+ $(MAKE) -f Makefile.Adamantix install DESTDIR=$(CURDIR)/debian/paxtest
+
+
+# Build architecture-independent files here.
+binary-indep: build install
+# We have nothing to do by default.
+
+# Build architecture-dependent files here.
+binary-arch: build install
+ dh_testdir
+ dh_testroot
+# dh_installdebconf
+ dh_installdocs
+ dh_installexamples
+ dh_installmenu
+# dh_installlogrotate
+# dh_installemacsen
+# dh_installpam
+# dh_installmime
+# dh_installinit
+ dh_installcron
+ dh_installman
+ dh_installinfo
+# dh_undocumented
+ dh_installchangelogs
+ dh_link
+ dh_strip
+ dh_compress
+ dh_fixperms
+# dh_makeshlibs
+ dh_installdeb
+# dh_perl
+ dh_shlibdeps
+ dh_gencontrol
+ dh_md5sums
+ dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install configure
diff --git a/default/paxtest/execbss.c b/default/paxtest/execbss.c
new file mode 100644
index 0000000..dcf6a54
--- /dev/null
+++ b/default/paxtest/execbss.c
@@ -0,0 +1,31 @@
+/* execbss.c - Tests whether code in the .bss segment can be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable bss ";
+
+char buf[MAX_SHELLCODE_LEN];
+
+void doit( void )
+{
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)&buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/execdata.c b/default/paxtest/execdata.c
new file mode 100644
index 0000000..46439ab
--- /dev/null
+++ b/default/paxtest/execdata.c
@@ -0,0 +1,31 @@
+/* execdata.c - Tests whether code in the .data segment can be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable data ";
+
+char buf[MAX_SHELLCODE_LEN] = SHELLCODE_RETURN_ARRAY;
+
+void doit( void )
+{
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)&buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/execheap.c b/default/paxtest/execheap.c
new file mode 100644
index 0000000..456f0dc
--- /dev/null
+++ b/default/paxtest/execheap.c
@@ -0,0 +1,36 @@
+/* execheap.c - Tests whether code in the heap can be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable heap ";
+
+void doit( void )
+{
+ char *buf;
+ fptr func;
+
+ buf = malloc( MAX_SHELLCODE_LEN );
+ if( buf == NULL ) {
+ fprintf( stderr, "Out of memory\n" );
+ exit( 1 );
+ }
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/execstack.c b/default/paxtest/execstack.c
new file mode 100644
index 0000000..c63e003
--- /dev/null
+++ b/default/paxtest/execstack.c
@@ -0,0 +1,30 @@
+/* execstack.c - Tests whether code on the stack can be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable stack ";
+
+void doit( void )
+{
+ char buf[8192];
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/genpaxtest b/default/paxtest/genpaxtest
new file mode 100644
index 0000000..5a22e15
--- /dev/null
+++ b/default/paxtest/genpaxtest
@@ -0,0 +1,74 @@
+#!/bin/sh
+#
+# Script to run all the PaX memory protection tests
+#
+# Copyright(c) 2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+# This file has been released under the GNU Public Licence version 2 or later.
+# See the file COPYING for details.
+#
+
+echo $RUNDIR
+if [ "${RUNDIR}" = "" ]
+then
+ RUNDIR=.
+fi
+
+cat << __here__ > paxtest
+#!/bin/sh
+
+if [ \$# = 1 ]
+then
+ if [ "\$1" = "kiddie" ]
+ then
+ PAXTEST_MODE=0
+ elif [ "\$1" = "blackhat" ]
+ then
+ PAXTEST_MODE=1
+ else
+ echo "usage: paxtest [kiddie|blackhat]"
+ exit 1
+ fi
+else
+ echo "usage: paxtest [kiddie|blackhat]"
+ exit 1
+fi
+
+export PAXTEST_MODE
+
+if [ "\${LD_LIBRARY_PATH}" = "" ]
+then
+ LD_LIBRARY_PATH=${RUNDIR}
+else
+ LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:${RUNDIR}
+fi
+export LD_LIBRARY_PATH
+
+cat <<__end__ | tee paxtest.log
+PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+Released under the GNU Public Licence version 2 or later
+
+__end__
+
+echo "Mode: \$1" >>paxtest.log
+uname -a >>paxtest.log
+echo >>paxtest.log
+
+echo 'Writing output to paxtest.log'
+echo 'It may take a while for the tests to complete'
+
+for i in $*
+do
+ ${RUNDIR}/\$i
+done >>paxtest.log 2>&1
+
+echo "Test results:"
+cat paxtest.log
+
+echo
+
+__here__
+
+chmod 755 paxtest
+
+exit 0
+
diff --git a/default/paxtest/getamap.c b/default/paxtest/getamap.c
new file mode 100644
index 0000000..2595df5
--- /dev/null
+++ b/default/paxtest/getamap.c
@@ -0,0 +1,30 @@
+/* getamap.c - Get the address of the first anonymous mapping
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+int main( int argc, char *argv[] )
+{
+ char *buf;
+
+ buf = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+ if( buf == MAP_FAILED ) {
+ fprintf( stderr, "mmap() returned NULL\n" );
+ exit( 1 );
+ }
+
+ printf( "%p\n", buf );
+
+ exit( 0 );
+}
diff --git a/default/paxtest/getheap.c b/default/paxtest/getheap.c
new file mode 100644
index 0000000..2f2372c
--- /dev/null
+++ b/default/paxtest/getheap.c
@@ -0,0 +1,24 @@
+/* getheap.c - Get the address of the first element allocated on the heap and
+ * print it.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main( int argc, char *argv[] )
+{
+ char *p;
+
+ p = malloc( 100 );
+ if( p == NULL ) {
+ perror( "getheap" );
+ exit( 1 );
+ }
+
+ printf( "%p\n", p );
+
+ exit( 0 );
+}
diff --git a/default/paxtest/getmain.c b/default/paxtest/getmain.c
new file mode 100644
index 0000000..0ff2373
--- /dev/null
+++ b/default/paxtest/getmain.c
@@ -0,0 +1,19 @@
+/* getmain.c - Get the address of the main function and print it
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void foo(void)
+{
+ printf( "%p\n", __builtin_return_address(0) );
+}
+
+int main( int argc, char *argv[] )
+{
+ foo();
+ exit(0);
+}
diff --git a/default/paxtest/getshlib.c b/default/paxtest/getshlib.c
new file mode 100644
index 0000000..1befcb0
--- /dev/null
+++ b/default/paxtest/getshlib.c
@@ -0,0 +1,36 @@
+/* getshlib.c - Get the address of a function in a shared library and print it
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+/* OpenBSD 3.5 doesn't define RTLD_DEFAULT */
+/* OpenBSD 3.6 does but it doesn't actually handle (segfaults on) RTLD_DEFAULT, sigh... */
+#ifdef __OpenBSD__
+#undef RTLD_DEFAULT
+#define RTLD_DEFAULT "libc.so"
+#endif
+
+int main( int argc, char *argv[] )
+{
+ void *handle;
+
+ handle = dlopen( RTLD_DEFAULT, RTLD_LAZY );
+ if( handle != NULL ) {
+ void *sprintf;
+
+ dlerror(); /* clear any errors */
+ sprintf = dlsym( handle, "sprintf" );
+
+ if( dlerror() == NULL ) {
+ printf( "%p\n", sprintf );
+ }
+
+ dlclose( handle );
+ }
+}
diff --git a/default/paxtest/getstack.c b/default/paxtest/getstack.c
new file mode 100644
index 0000000..44b4106
--- /dev/null
+++ b/default/paxtest/getstack.c
@@ -0,0 +1,18 @@
+/* getstack.c - Get the location of the stack and print it
+ * (Idea by Peter Roozemaal)
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main( int argc, char *argv[] ){
+ char a;
+
+ printf( "%p\n", &a );
+
+ exit( 0 );
+}
+
diff --git a/default/paxtest/interp.c b/default/paxtest/interp.c
new file mode 100644
index 0000000..e7ce97b
--- /dev/null
+++ b/default/paxtest/interp.c
@@ -0,0 +1,5 @@
+#ifdef __UCLIBC__
+const char __invoke_dynamic_linker__[] __attribute__ ((section (".interp"))) = "/lib/ld-uClibc.so.0";
+#else
+const char __invoke_dynamic_linker__[] __attribute__ ((section (".interp"))) = "/lib/ld-linux.so.2";
+#endif
diff --git a/default/paxtest/mprotanon.c b/default/paxtest/mprotanon.c
new file mode 100644
index 0000000..84a4099
--- /dev/null
+++ b/default/paxtest/mprotanon.c
@@ -0,0 +1,65 @@
+/* mprotanon.c - Tests whether code can be executed in anonymous mappings
+ * after trying to use mprotect() to make it executable.
+ *
+ * Copyright (c)2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+const char testname[] = "Executable anonymous mapping (mprotect) ";
+
+void doit( void )
+{
+ char *buf;
+ fptr func;
+
+ buf = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+ if( buf == MAP_FAILED ) {
+ fprintf( stderr, "mmap() returned NULL\n" );
+ exit( 1 );
+ }
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)buf;
+
+ /* Try to make the anonymous mapping executable first by using
+ * mprotect.
+ *
+ * Some people like to disable this call to make the results look
+ * better for their system.
+ *
+ * The whole purpose of this call is to figure out how the system
+ * handles mprotect() calls. If it allows the application to use
+ * mprotect() to override kernel settings, then that is something
+ * the user of this test suite may like to know.
+ *
+ * And yes, I know that this is how UNIX is supposed to work and that
+ * it is a design decision to allow this override. All the more reason
+ * to be honest and open about it and to tell the user why (s)he has
+ * to trade in a bit of security for compatibility.
+ *
+ * But then, it is of course easier to simply disable this mprotect()
+ * call than to fix your kernel and userland.
+ */
+ /* Due to a FreeBSD bug PROT_READ is required */
+ do_mprotect( buf, 4096, PROT_READ|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/mprotbss.c b/default/paxtest/mprotbss.c
new file mode 100644
index 0000000..8a1e3b4
--- /dev/null
+++ b/default/paxtest/mprotbss.c
@@ -0,0 +1,39 @@
+/* mprotbss.c - Tests whether code in the .bss segment can be executed after
+ * trying to use mprotect() to make it executable
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable bss (mprotect) ";
+
+char buf[MAX_SHELLCODE_LEN];
+
+void doit( void )
+{
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)&buf;
+
+ /* Try to make the bss executable first by using mprotect */
+ /* Due to a FreeBSD bug PROT_READ is required */
+ do_mprotect( &buf, sizeof(buf), PROT_READ|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ do_mprotect( &buf, sizeof(buf), PROT_READ|PROT_WRITE );
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/mprotdata.c b/default/paxtest/mprotdata.c
new file mode 100644
index 0000000..cad600a
--- /dev/null
+++ b/default/paxtest/mprotdata.c
@@ -0,0 +1,39 @@
+/* mprotdata.c - Tests whether code in the .data segment can be executed after
+ * trying to use mprotect() to make it executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable data (mprotect) ";
+
+char buf[MAX_SHELLCODE_LEN] = SHELLCODE_RETURN_ARRAY;
+
+void doit( void )
+{
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)&buf;
+
+ /* Try to make the data executable first by using mprotect */
+ /* Due to an OpenBSD bug PROT_READ is required */
+ do_mprotect( &buf, sizeof(buf), PROT_READ|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ do_mprotect( &buf, sizeof(buf), PROT_READ|PROT_WRITE );
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/mprotheap.c b/default/paxtest/mprotheap.c
new file mode 100644
index 0000000..e3a56b2
--- /dev/null
+++ b/default/paxtest/mprotheap.c
@@ -0,0 +1,44 @@
+/* mprotheap.c - Tests whether code on the heap can be executed after trying to
+ * use mprotect() to make it executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable heap (mprotect) ";
+
+void doit( void )
+{
+ char *buf;
+ fptr func;
+
+ buf = malloc( MAX_SHELLCODE_LEN );
+ if( buf == NULL ) {
+ fprintf( stderr, "Out of memory\n" );
+ exit( 1 );
+ }
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Try to make the buffer executable by using mprotect() */
+ /* Due to a FreeBSD bug PROT_READ is required */
+ do_mprotect( buf, SIZE_OF_SHELLCODE_RETURN, PROT_READ|PROT_EXEC );
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)buf;
+
+ /* Call the code in the buffer */
+ func();
+
+ do_mprotect( buf, MAX_SHELLCODE_LEN, PROT_READ|PROT_WRITE );
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/mprotshbss.c b/default/paxtest/mprotshbss.c
new file mode 100644
index 0000000..15a1dbb
--- /dev/null
+++ b/default/paxtest/mprotshbss.c
@@ -0,0 +1,71 @@
+/* mprotshbss.c - Tests whether code in the .bss segment of a shared library can
+ * be executed after trying to use mprotect() to make it
+ * executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable shared library bss (mprotect) ";
+
+void doit( void )
+{
+ char *shbss;
+ char *shbss2;
+ fptr func;
+ void *handle1, *handle2;
+
+ handle1 = dlopen( "shlibtest.so", RTLD_LAZY );
+ if( handle1 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shbss = dlsym( handle1, "shbss" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shbss", "shlibtest.so" );
+ exit( 1 );
+ }
+
+ handle2 = dlopen( "shlibtest2.so", RTLD_LAZY );
+ if( handle2 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shbss2 = dlsym( handle2, "shbss2" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shbss2", "shlibtest2.so" );
+ exit( 1 );
+ }
+
+ copy_shellcode(shbss, SHELLCODE_RETURN);
+ copy_shellcode(shbss2, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = shbss < shbss2 ? (fptr)shbss : (fptr)shbss2;
+
+ /* Try to make the memory region executable by using mprotect() */
+ /* Due to an OpenBSD bug PROT_READ is required */
+ do_mprotect(func, MAX_SHELLCODE_LEN, PROT_READ|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ do_mprotect(func, MAX_SHELLCODE_LEN, PROT_READ|PROT_WRITE );
+
+ /* It worked when the function returns */
+ itworked();
+
+ dlclose( handle1 );
+ dlclose( handle2 );
+}
diff --git a/default/paxtest/mprotshdata.c b/default/paxtest/mprotshdata.c
new file mode 100644
index 0000000..5a4e56c
--- /dev/null
+++ b/default/paxtest/mprotshdata.c
@@ -0,0 +1,71 @@
+/* mprotshdata.c - Tests whether code in the .data segment of a shared library
+ * can be executed after trying to use mprotect() to make it
+ * executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable shared library data (mprotect)";
+
+void doit( void )
+{
+ fptr func;
+ char *shdata, *shdata2;
+ void *handle1, *handle2;
+
+ handle1 = dlopen( "shlibtest.so", RTLD_LAZY );
+ if( handle1 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shdata = dlsym( handle1, "shdata" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shdata", "shlibtest.so" );
+ exit( 1 );
+ }
+
+ handle2 = dlopen( "shlibtest2.so", RTLD_LAZY );
+ if( handle2 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shdata2 = dlsym( handle2, "shdata2" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shdata2", "shlibtest2.so" );
+ exit( 1 );
+ }
+
+ copy_shellcode(shdata, SHELLCODE_RETURN);
+ copy_shellcode(shdata2, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = shdata < shdata2 ? (fptr)shdata : (fptr)shdata2;
+
+ /* Try to make the memory region executable by using mprotect() */
+ /* Due to an OpenBSD bug PROT_READ is required */
+ do_mprotect( func, MAX_SHELLCODE_LEN, PROT_READ|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ do_mprotect( func, MAX_SHELLCODE_LEN, PROT_READ|PROT_WRITE );
+
+ /* It worked when the function returns */
+ itworked();
+
+ dlclose( handle1 );
+ dlclose( handle2 );
+}
+
diff --git a/default/paxtest/mprotstack.c b/default/paxtest/mprotstack.c
new file mode 100644
index 0000000..b5f8fe9
--- /dev/null
+++ b/default/paxtest/mprotstack.c
@@ -0,0 +1,35 @@
+/* mprotstack.c - Tests whether code on the stack can be executed after trying
+ * to make it executable by using mprotect().
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable stack (mprotect) ";
+
+void doit( void )
+{
+ char buf[MAX_SHELLCODE_LEN];
+ fptr func;
+
+ copy_shellcode(buf, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = (fptr)&buf;
+
+ /* Try to make the stack executable first */
+ do_mprotect( &buf, sizeof(buf), PROT_READ|PROT_WRITE|PROT_EXEC );
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+}
diff --git a/default/paxtest/randamap.c b/default/paxtest/randamap.c
new file mode 100644
index 0000000..96f38b6
--- /dev/null
+++ b/default/paxtest/randamap.c
@@ -0,0 +1,12 @@
+/* randamap.c - Tests the randomisation of anonymous mappings.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Anonymous mapping randomisation test ";
+const char testprog[] = RUNDIR"/getamap";
diff --git a/default/paxtest/randbody.c b/default/paxtest/randbody.c
new file mode 100644
index 0000000..bd78f12
--- /dev/null
+++ b/default/paxtest/randbody.c
@@ -0,0 +1,63 @@
+/* randbody.c - This part is shared by the randomisation tests
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define COUNT (25)
+
+extern const char testname[];
+extern const char testprog[];
+
+int main( int argc, char *argv[] )
+{
+ FILE *fp;
+ int i;
+ unsigned long tmp;
+ unsigned long and;
+ unsigned long or;
+ int bits;
+ int ret;
+
+ printf( "%s: ", testname );
+
+ and = ~0L;
+ or = 0L;
+ for( i = 0; i < COUNT; i++ ) {
+ fp = popen( testprog, "r" );
+ if( fp == NULL ) {
+ perror( testprog );
+ exit( 1 );
+ }
+
+ ret = fscanf( fp, "%lx", &tmp );
+ if (ret != 1) {
+ perror ( testprog );
+ exit( 1 );
+ }
+ and &= tmp;
+ or |= tmp;
+
+ pclose( fp );
+ }
+
+ if( and == or ) {
+ printf( "No randomisation\n" );
+ } else {
+ tmp = and ^ ~or;
+ tmp = or & ~tmp;
+ bits = 0;
+ while( tmp != 0 ) {
+ bits += (tmp%2);
+ tmp >>= 1;
+ }
+
+ printf( "%d bits (guessed)\n", bits );
+ }
+
+ exit( 0 );
+}
+
diff --git a/default/paxtest/randheap1.c b/default/paxtest/randheap1.c
new file mode 100644
index 0000000..a7e2d2c
--- /dev/null
+++ b/default/paxtest/randheap1.c
@@ -0,0 +1,12 @@
+/* randheap1.c - Tests the randomisation of the heap of ET_EXEC main executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Heap randomisation test (ET_EXEC) ";
+const char testprog[] = RUNDIR"/getheap1";
diff --git a/default/paxtest/randheap2.c b/default/paxtest/randheap2.c
new file mode 100644
index 0000000..13e4fb8
--- /dev/null
+++ b/default/paxtest/randheap2.c
@@ -0,0 +1,12 @@
+/* randheap2.c - Tests the randomisation of the heap of PIE main executable.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Heap randomisation test (PIE) ";
+const char testprog[] = RUNDIR"/getheap2";
diff --git a/default/paxtest/randmain1.c b/default/paxtest/randmain1.c
new file mode 100644
index 0000000..dd7c914
--- /dev/null
+++ b/default/paxtest/randmain1.c
@@ -0,0 +1,12 @@
+/* randmain1.c - Tests the randomisation of ET_EXEC main executable
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Main executable randomisation (ET_EXEC) ";
+const char testprog[] = RUNDIR"/getmain1";
diff --git a/default/paxtest/randmain2.c b/default/paxtest/randmain2.c
new file mode 100644
index 0000000..6f3a85b
--- /dev/null
+++ b/default/paxtest/randmain2.c
@@ -0,0 +1,12 @@
+/* randmain2.c - Tests the randomisation of the ET_DYN main executable
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Main executable randomisation (PIE) ";
+const char testprog[] = RUNDIR"/getmain2";
diff --git a/default/paxtest/randshlib.c b/default/paxtest/randshlib.c
new file mode 100644
index 0000000..8a6f52f
--- /dev/null
+++ b/default/paxtest/randshlib.c
@@ -0,0 +1,12 @@
+/* randshlib.c - Tests the randomisation of shared library loading
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Shared library randomisation test ";
+const char testprog[] = RUNDIR"/getshlib";
diff --git a/default/paxtest/randstack1.c b/default/paxtest/randstack1.c
new file mode 100644
index 0000000..9efe223
--- /dev/null
+++ b/default/paxtest/randstack1.c
@@ -0,0 +1,12 @@
+/* randstack.c - Tests the randomisation of the stack pointer.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Stack randomisation test (SEGMEXEC) ";
+const char testprog[] = RUNDIR"/getstack1";
diff --git a/default/paxtest/randstack2.c b/default/paxtest/randstack2.c
new file mode 100644
index 0000000..78f1719
--- /dev/null
+++ b/default/paxtest/randstack2.c
@@ -0,0 +1,12 @@
+/* randstack.c - Tests the randomisation of the stack pointer.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#ifndef RUNDIR
+#error RUNDIR not defined
+#endif
+
+const char testname[] = "Stack randomisation test (PAGEEXEC) ";
+const char testprog[] = RUNDIR"/getstack2";
diff --git a/default/paxtest/results/Adamantix.blackhat b/default/paxtest/results/Adamantix.blackhat
new file mode 100644
index 0000000..b0ac914
--- /dev/null
+++ b/default/paxtest/results/Adamantix.blackhat
@@ -0,0 +1,33 @@
+PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+Released under the GNU Public Licence version 2 or later
+
+Mode: blackhat
+Linux devbox 2.4.22-1-k7-sec #1 Mon Jan 26 02:12:39 CET 2004 i686 unknown
+
+Executable anonymous mapping : Killed
+Executable bss : Killed
+Executable data : Killed
+Executable heap : Killed
+Executable stack : Killed
+Executable anonymous mapping (mprotect) : Killed
+Executable bss (mprotect) : Killed
+Executable data (mprotect) : Killed
+Executable heap (mprotect) : Killed
+Executable shared library bss (mprotect) : Killed
+Executable shared library data (mprotect): Killed
+Executable stack (mprotect) : Killed
+Anonymous mapping randomisation test : 16 bits (guessed)
+Heap randomisation test (ET_EXEC) : 25 bits (guessed)
+Heap randomisation test (ET_DYN) : 25 bits (guessed)
+Main executable randomisation (ET_EXEC) : No randomisation
+Main executable randomisation (ET_DYN) : 17 bits (guessed)
+Shared library randomisation test : 16 bits (guessed)
+Stack randomisation test (SEGMEXEC) : 23 bits (guessed)
+Stack randomisation test (PAGEEXEC) : 24 bits (guessed)
+Return to function (strcpy) : Vulnerable
+Return to function (strcpy, RANDEXEC) : Vulnerable
+Return to function (memcpy) : Vulnerable
+Return to function (memcpy, RANDEXEC) : Vulnerable
+Executable shared library bss : Killed
+Executable shared library data : Killed
+Writable text segments : Killed
diff --git a/default/paxtest/results/Adamantix.kiddie b/default/paxtest/results/Adamantix.kiddie
new file mode 100644
index 0000000..4507023
--- /dev/null
+++ b/default/paxtest/results/Adamantix.kiddie
@@ -0,0 +1,33 @@
+PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+Released under the GNU Public Licence version 2 or later
+
+Mode: kiddie
+Linux devbox 2.4.22-1-k7-sec #1 Mon Jan 26 02:12:39 CET 2004 i686 unknown
+
+Executable anonymous mapping : Killed
+Executable bss : Killed
+Executable data : Killed
+Executable heap : Killed
+Executable stack : Killed
+Executable anonymous mapping (mprotect) : Killed
+Executable bss (mprotect) : Killed
+Executable data (mprotect) : Killed
+Executable heap (mprotect) : Killed
+Executable shared library bss (mprotect) : Killed
+Executable shared library data (mprotect): Killed
+Executable stack (mprotect) : Killed
+Anonymous mapping randomisation test : 16 bits (guessed)
+Heap randomisation test (ET_EXEC) : 25 bits (guessed)
+Heap randomisation test (ET_DYN) : 25 bits (guessed)
+Main executable randomisation (ET_EXEC) : No randomisation
+Main executable randomisation (ET_DYN) : 17 bits (guessed)
+Shared library randomisation test : 16 bits (guessed)
+Stack randomisation test (SEGMEXEC) : 23 bits (guessed)
+Stack randomisation test (PAGEEXEC) : 24 bits (guessed)
+Return to function (strcpy) : Vulnerable
+Return to function (strcpy, RANDEXEC) : Vulnerable
+Return to function (memcpy) : Vulnerable
+Return to function (memcpy, RANDEXEC) : Vulnerable
+Executable shared library bss : Killed
+Executable shared library data : Killed
+Writable text segments : Killed
diff --git a/default/paxtest/results/Gentoo.blackhat b/default/paxtest/results/Gentoo.blackhat
new file mode 100644
index 0000000..98a01a9
--- /dev/null
+++ b/default/paxtest/results/Gentoo.blackhat
@@ -0,0 +1,33 @@
+PaXtest - Copyright(c) 2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+Released under the GNU Public Licence version 2 or later
+
+Mode: blackhat
+Linux simple 2.4.24-grsec-1.9.13 #3 Wed Jan 14 00:48:25 EST 2004 i686 Intel(R) Pentium(R) 4 CPU 1400MHz GenuineIntel GNU/Linux
+
+Executable anonymous mapping : Killed
+Executable bss : Killed
+Executable data : Killed
+Executable heap : Killed
+Executable stack : Killed
+Executable anonymous mapping (mprotect) : Killed
+Executable bss (mprotect) : Killed
+Executable data (mprotect) : Killed
+Executable heap (mprotect) : Killed
+Executable stack (mprotect) : Killed
+Executable shared library bss (mprotect) : Killed
+Executable shared library data (mprotect): Killed
+Writable text segments : Killed
+Anonymous mapping randomisation test : 16 bits (guessed)
+Heap randomisation test (ET_EXEC) : 13 bits (guessed)
+Heap randomisation test (ET_DYN) : 25 bits (guessed)
+Main executable randomisation (ET_EXEC) : 16 bits (guessed)
+Main executable randomisation (ET_DYN) : 17 bits (guessed)
+Shared library randomisation test : 16 bits (guessed)
+Stack randomisation test (SEGMEXEC) : 23 bits (guessed)
+Stack randomisation test (PAGEEXEC) : 24 bits (guessed)
+Return to function (strcpy) : Vulnerable
+Return to function (memcpy) : Vulnerable
+Return to function (strcpy, RANDEXEC) : Killed
+Return to function (memcpy, RANDEXEC) : Killed
+Executable shared library bss : Killed
+Executable shared library data : Killed
diff --git a/default/paxtest/results/Results.README b/default/paxtest/results/Results.README
new file mode 100644
index 0000000..761cd87
--- /dev/null
+++ b/default/paxtest/results/Results.README
@@ -0,0 +1,10 @@
+The Adamantix paxtest results are generated by running paxtest on a default
+kernel configuration. The Adamantix default configuration does not enable
+randomisation of normal executables (the so called ET_EXEC files), because
+it costs performance and there are only a few executables of this type anyway.
+
+The Gentoo results show what is possible when a kernel is configured by hand
+and all PaX features are enabled (there is no default kernel configuration in
+Gentoo, or so the Gentoo developers say). It includes ET_EXEC randomisation,
+which also prevents certain return to function attacks.
+
diff --git a/default/paxtest/rettofunc1.c b/default/paxtest/rettofunc1.c
new file mode 100644
index 0000000..de2df25
--- /dev/null
+++ b/default/paxtest/rettofunc1.c
@@ -0,0 +1,31 @@
+/* rettofunc1.c - Tests whether return to function exploits work or not.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "body.h"
+
+const char testname[] = "Return to function (strcpy) ";
+
+fptr overflow[32] = {
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, NULL
+};
+
+void doit( void )
+{
+ char buf[4];
+
+ if (strlen((const char *)overflow) > sizeof(overflow[0])) {
+ strcpy( buf, (const char *)overflow );
+ } else {
+ fprintf( stderr, "paxtest: return address contains a NULL byte.\n" );
+ exit(1);
+ }
+}
diff --git a/default/paxtest/rettofunc1x.c b/default/paxtest/rettofunc1x.c
new file mode 100644
index 0000000..e478d28
--- /dev/null
+++ b/default/paxtest/rettofunc1x.c
@@ -0,0 +1,31 @@
+/* rettofunc1.c - Tests whether return to function exploits work or not.
+ *
+ * Copyright (c)2003,2004 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "body.h"
+
+const char testname[] = "Return to function (strcpy, PIE) ";
+
+fptr overflow[32] = {
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, NULL
+};
+
+void doit( void )
+{
+ char buf[4];
+
+ if (strlen((const char *)overflow) > sizeof(overflow[0])) {
+ strcpy( buf, (const char *)overflow );
+ } else {
+ fprintf( stderr, "paxtest: return address contains a NULL byte.\n" );
+ exit(1);
+ }
+}
diff --git a/default/paxtest/rettofunc2.c b/default/paxtest/rettofunc2.c
new file mode 100644
index 0000000..797956d
--- /dev/null
+++ b/default/paxtest/rettofunc2.c
@@ -0,0 +1,25 @@
+/* rettofunc2.c - Tests whether return to function exploits using memcpy() work
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "body.h"
+
+const char testname[] = "Return to function (memcpy) ";
+
+fptr overflow[32] = {
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked
+};
+
+void doit( void )
+{
+ char buf[4];
+
+ memcpy( buf, overflow, sizeof( overflow ) );
+}
diff --git a/default/paxtest/rettofunc2x.c b/default/paxtest/rettofunc2x.c
new file mode 100644
index 0000000..17af284
--- /dev/null
+++ b/default/paxtest/rettofunc2x.c
@@ -0,0 +1,25 @@
+/* rettofunc2.c - Tests whether return to function exploits using memcpy() work
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "body.h"
+
+const char testname[] = "Return to function (memcpy, PIE) ";
+
+fptr overflow[32] = {
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked,
+ itworked, itworked, itworked, itworked, itworked, itworked, itworked, itworked
+};
+
+void doit( void )
+{
+ char buf[4];
+
+ memcpy( buf, overflow, sizeof( overflow ) );
+}
diff --git a/default/paxtest/runtest.sh b/default/paxtest/runtest.sh
new file mode 100755
index 0000000..0014e78
--- /dev/null
+++ b/default/paxtest/runtest.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# Build.
+make linux >/dev/null 2>/dev/null
+if [ ! -f ./paxtest ]; then
+ echo "Something went wrong during paxtest build."
+ exit -1
+fi
+
+# Run tests
+./paxtest blackhat > results.txt
+
+# Parse results
+## TODO
+
+
+# Clean up.
+rm -f core.*
+
+rm -f results.txt
diff --git a/default/paxtest/shellcode.h b/default/paxtest/shellcode.h
new file mode 100644
index 0000000..069a0f7
--- /dev/null
+++ b/default/paxtest/shellcode.h
@@ -0,0 +1,37 @@
+#include <unistd.h>
+#include <string.h>
+
+#define MAX_SHELLCODE_LEN 12
+
+#if defined(__powerpc__)
+#define SHELLCODE_RETURN_ARRAY { '\x4e', '\x80', '\x00', '\x20' }
+#define SHELLCODE_RETURN "\x4e\x80\x00\x20"
+#define SIZE_OF_SHELLCODE_RETURN 4
+#elif defined(__sparc__) && !defined(__arch64__)
+#define SHELLCODE_RETURN_ARRAY { '\x81', '\xc7', '\xe0', '\x08', '\x81', '\xe8' ,'\x00', '\x00' }
+#define SHELLCODE_RETURN "\x81\xc7\xe0\x08\x81\xe8\x00\x00"
+#define SIZE_OF_SHELLCODE_RETURN 8
+#elif defined(__sparc__) && defined(__arch64__)
+#define SHELLCODE_RETURN_ARRAY { '\x9d', '\xe3', '\xbf', '\x40', '\x81', '\xcf', '\xe0', '\x08', '\x01', '\x00', '\x00', '\x00' }
+#define SHELLCODE_RETURN "\x9d\xe3\xbf\x40\x81\xcf\xe0\x08\x01\x00\x00\x00"
+#define SIZE_OF_SHELLCODE_RETURN 12
+#else
+#define SHELLCODE_RETURN_ARRAY { '\xc3' }
+#define SHELLCODE_RETURN "\xc3"
+#define SIZE_OF_SHELLCODE_RETURN 1
+#endif
+
+#if defined(__powerpc64__)
+static inline void copy_shellcode(char *dest, char *src)
+{
+ /* 12 bytes total */
+ unsigned long dstaddr = (unsigned long)dest + sizeof(dstaddr);
+ memcpy(dest, &dstaddr, sizeof(dstaddr));
+ memcpy(dest + sizeof(dstaddr), src, SIZE_OF_SHELLCODE_RETURN);
+}
+#else
+static inline void copy_shellcode(char *dest, char *src)
+{
+ memcpy(dest, src, SIZE_OF_SHELLCODE_RETURN);
+}
+#endif
diff --git a/default/paxtest/shlibbss.c b/default/paxtest/shlibbss.c
new file mode 100644
index 0000000..8fd2a52
--- /dev/null
+++ b/default/paxtest/shlibbss.c
@@ -0,0 +1,63 @@
+/* shlibbss.c - Tests whether code in the .bss segment of a shared library can
+ * be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable shared library bss ";
+
+void doit( void )
+{
+ char *shbss;
+ char *shbss2;
+ fptr func;
+ void *handle1, *handle2;
+
+ handle1 = dlopen( "shlibtest.so", RTLD_LAZY );
+ if( handle1 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shbss = dlsym( handle1, "shbss" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shbss", "shlibtest.so" );
+ exit( 1 );
+ }
+
+ handle2 = dlopen( "shlibtest2.so", RTLD_LAZY );
+ if( handle2 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shbss2 = dlsym( handle2, "shbss2" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shbss2", "shlibtest2.so" );
+ exit( 1 );
+ }
+
+ copy_shellcode(shbss, SHELLCODE_RETURN);
+ copy_shellcode(shbss2, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = shbss < shbss2 ? (fptr)shbss : (fptr)shbss2;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+
+ dlclose( handle1 );
+ dlclose( handle2 );
+}
diff --git a/default/paxtest/shlibdata.c b/default/paxtest/shlibdata.c
new file mode 100644
index 0000000..2e070a6
--- /dev/null
+++ b/default/paxtest/shlibdata.c
@@ -0,0 +1,63 @@
+/* shlibdata.c - Tests whether code in the .data segment of a shared library can
+ * be executed
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include "body.h"
+#include "shellcode.h"
+
+const char testname[] = "Executable shared library data ";
+
+
+void doit( void )
+{
+ fptr func;
+ char *shdata, *shdata2;
+ void *handle1, *handle2;
+
+ handle1 = dlopen( "shlibtest.so", RTLD_LAZY );
+ if( handle1 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shdata = dlsym( handle1, "shdata" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shdata", "shlibtest.so" );
+ exit( 1 );
+ }
+
+ handle2 = dlopen( "shlibtest2.so", RTLD_LAZY );
+ if( handle2 == NULL ) {
+ fprintf( stderr, "dlopen() returned NULL\n" );
+ exit( 1 );
+ }
+ dlerror(); /* clear any errors */
+ shdata2 = dlsym( handle2, "shdata2" );
+ if( dlerror() != NULL ) {
+ fprintf( stderr, "symbol %s not found in %s\n", "shdata2", "shlibtest2.so" );
+ exit( 1 );
+ }
+
+ copy_shellcode(shdata, SHELLCODE_RETURN);
+ copy_shellcode(shdata2, SHELLCODE_RETURN);
+
+ /* Convert the pointer to a function pointer */
+ func = shdata < shdata2 ? (fptr)shdata : (fptr)shdata2;
+
+ /* Call the code in the buffer */
+ func();
+
+ /* It worked when the function returns */
+ itworked();
+
+ dlclose( handle1 );
+ dlclose( handle2 );
+}
diff --git a/default/paxtest/shlibtest.c b/default/paxtest/shlibtest.c
new file mode 100644
index 0000000..c61572e
--- /dev/null
+++ b/default/paxtest/shlibtest.c
@@ -0,0 +1,16 @@
+/* shlibtest.c - Shared library used by the shared library tests.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+#include "shellcode.h"
+
+char shbss[4096];
+
+char shdata[4096] = SHELLCODE_RETURN_ARRAY;
+
+/* A function which does nothing, it only exists so it can be referenced */
+int shlibtest( void )
+{
+ return 1;
+}
diff --git a/default/paxtest/shlibtest2.c b/default/paxtest/shlibtest2.c
new file mode 100644
index 0000000..111ea05
--- /dev/null
+++ b/default/paxtest/shlibtest2.c
@@ -0,0 +1,17 @@
+/* shlibtest2.c - Shared library used by the shared library tests.
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include "shellcode.h"
+
+char shbss2[4096];
+
+char shdata2[4096] = SHELLCODE_RETURN_ARRAY;
+
+/* A function which does nothing, it only exists so it can be referenced */
+int shlibtest2( void )
+{
+ return 1;
+}
diff --git a/default/paxtest/targets b/default/paxtest/targets
new file mode 100644
index 0000000..db9097b
--- /dev/null
+++ b/default/paxtest/targets
@@ -0,0 +1,10 @@
+Choose one of the following make targets:
+
+linux Linux (gcc default)
+linux32 32bit Linux
+linux64 64bit Linux
+
+openbsd OpenBSD
+
+clean Clean up
+
diff --git a/default/paxtest/writetext.c b/default/paxtest/writetext.c
new file mode 100644
index 0000000..59bc97f
--- /dev/null
+++ b/default/paxtest/writetext.c
@@ -0,0 +1,56 @@
+/* writetext.c - Test whether a .text sections can be written
+ *
+ * Copyright (c)2003 by Peter Busser <peter@xxxxxxxxxxxxx>
+ * This file has been released under the GNU Public Licence version 2 or later
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/mman.h>
+#include "body.h"
+
+const char testname[] = "Writable text segments ";
+
+extern int shlibtest( void );
+
+static void sigsegv( int sig )
+{
+ printf( "Killed\n" );
+ exit( 1 );
+}
+
+void doit( void )
+{
+ volatile char *buf;
+ char c;
+
+ buf = (char*)shlibtest;
+
+ signal( SIGSEGV, sigsegv );
+
+ /* Try to make the text writable first by using mprotect
+ *
+ * Some people like to disable this call to make the results look
+ * better for their system.
+ *
+ * The purpose of the mprotect() here is to *really* try to write to
+ * that piece of executable memory. If you want to know whether a box
+ * can be opened or not, you try to pull it open. Just looking at it,
+ * seeing that it is closed, and therefore concluding that it cannot
+ * be opened is rather lame.
+ *
+ * But then, it is of course easier to get good paxtest results by
+ * disabling this mprotect than to fix your kernel code and userland.
+ */
+ do_mprotect( buf, 4096, PROT_READ|PROT_WRITE|PROT_EXEC );
+
+ /* Try to write something */
+ /* gcc 4.5 optimized this out if buf wasn't volatile */
+ *buf = 'X';
+
+ /* It worked when the function returns */
+ itworked();
+}
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