Update README

README updated.
Module signing info has been removed. Module signing is done now in kernel
source tree and uses appended signatures. No need to create sig files or
set extended attributes. Information about test scripts has been removed.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>

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
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+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+
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+    This is free software, and you are welcome to redistribute it
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+
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+  `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
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+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

ChangeLog

@@ -1,3 +1,30 @@
+2012-05-18  Dmitry Kasatkin  <dmitry.kasatkin@intel.com>
+
+	version 0.3
+	* llistxattr returns 0 if there are no xattrs and it is valid
+	* Added entry type to directory hash calculation
+	* inline block variable renamed
+	* Remove forced tag creation
+	* Use libexec for programs and scripts
+	* Some files updated
+	* Do not search for algorithm as it is known
+	* Refactored to remove redundant hash initialization code
+	* Added hash calculation for special files
+
+2012-04-05  Dmitry Kasatkin  <dmitry.kasatkin@intel.com>
+
+	version 0.2
+	* added RPM & TAR building makefile rules
+	* renamed evm-utils to ima-evm-utils
+	* added command options description
+	* updated error handling
+	* refactored redundant code
+
+2012-04-02  Dmitry Kasatkin  <dmitry.kasatkin@intel.com>
+
+	version 0.1.0
+	* Fully functional version for lastest 3.x kernels
+
 2011-08-24  Dmitry Kasatkin  <dmitry.kasatkin@intel.com>
 
 	version 0.1

INSTALL

@@ -1,8 +1,8 @@
 Installation Instructions
 *************************
 
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+Copyright (C) 1994-1996, 1999-2002, 2004-2011 Free Software Foundation,
-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+Inc.
 
    Copying and distribution of this file, with or without modification,
 are permitted in any medium without royalty provided the copyright
@@ -226,6 +226,11 @@ order to use an ANSI C compiler:
 
 and if that doesn't work, install pre-built binaries of GCC for HP-UX.
 
+   HP-UX `make' updates targets which have the same time stamps as
+their prerequisites, which makes it generally unusable when shipped
+generated files such as `configure' are involved.  Use GNU `make'
+instead.
+
    On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
 parse its `<wchar.h>' header file.  The option `-nodtk' can be used as
 a workaround.  If GNU CC is not installed, it is therefore recommended

Makefile.am

@@ -1,6 +1,22 @@
-SUBDIRS = src tests
+SUBDIRS = src
 
 #EXTRA_DIST = LEGAL acinclude.m4 include
 
 ACLOCAL_AMFLAGS = -I m4
 
+SRCS = $(HOME)/rpmbuild/SOURCES
+SPEC = $(PACKAGE_NAME).spec
+
+pkgname = $(PACKAGE_NAME)-$(PACKAGE_VERSION)
+tarname = $(pkgname).tar.gz
+
+$(tarname):
+	git archive --format=tar --prefix=$(pkgname)/ v$(PACKAGE_VERSION) $(FILES) | gzip >$@
+
+tar: $(tarname)
+
+rpm: $(tarname)
+	cp $(tarname) $(SRCS)/
+	rpmbuild -ba --nodeps $(SPEC)
+
+.PHONY: $(tarname)

README

@@ -1,40 +1,79 @@
+ima-evm-utils - IMA/EVM signing utility
+=========================================
 
-1. Generate private key
+Contents:
 
-openssl genrsa -out privkey_evm.pem 1024
+   1. Key generation
+   2. Initialization
+   3. Signing
 
-2. Generate public key
 
-openssl rsa -pubout -in privkey_evm.pem -out pubkey_evm.pem
+Key generation
+--------------
 
-3. Copy public (+private if to sign on device) key to the device/qemu /etc/keys
+Generate private key in plain text format
 
-scp pubkey_evm.pem mad:/etc/keys
+    $ openssl genrsa -out privkey_evm.pem 1024
 
-4. Load keys and enable EVM
+Generate encrypted private key
 
-evm_enable.sh
+    $ openssl genrsa -des3 -out privkey_evm.pem 1024
 
-This should be done at early phase, before mounting root filesystem.
+Make encrypted private key from unencrypted
 
-5. Sign EVM and use hash value for IMA - common case
+    $ openssl rsa -in /etc/keys/privkey_evm.pem -out privkey_evm_enc.pem -des3
 
-evmctl sign --imahash test.txt
+Get public key
 
-6. Sign IMA and EVM - for immutable files and modules
+    $ openssl rsa -pubout -in privkey_evm.pem -out pubkey_evm.pem
 
-evmctl sign --imasig test.txt
+Copy keys to /etc/keys
 
-7. Sign whole filesystem
+    $ cp pubkey_evm.pem /etc/keys
+    $ scp pubkey_evm.pem target:/etc/keys
 
-evm_sign_all.sh
-or
-find / \( -fstype rootfs -o -fstype ext3 -o -fstype ext4 \) ! -path "/lib/modules/*" -type f -uid 0 -exec evmctl sign --imahash '{}' \;
-find /lib/modules ! -name "*.ko" -type f -uid 0 -exec evmctl sign --imahash '{}' \;
-# security.ima needs to have signature for modules
-find /lib/modules -name "*.ko" -type f -uid 0 -exec evmctl sign --imasig '{}' \;
 
-8. Label filesystem in fix mode...
+Initialization
+--------------
 
-ima_fix_dir.sh <dir>
+IMA/EVM initialization should be normally done from initial RAM file system
+before mounting root filesystem.
+
+Here is an example script /etc/initramfs-tools/scripts/local-top/ima.sh
+
+    # import EVM HMAC key
+    keyctl clear @u
+    keyctl add user kmk "testing123" @u
+    keyctl add encrypted evm-key "load `cat /etc/keys/evm-key`" @u
+
+    # import IMA public key
+    ima_id=`keyctl newring _ima @u`
+    evmctl import /etc/keys/pubkey_evm.pem $ima_id
+
+    # import EVM public key
+    evm_id=`keyctl newring _evm @u`
+    evmctl import /etc/keys/pubkey_evm.pem $evm_id
+
+    # enable EVM
+    echo "1" > /sys/kernel/security/evm
+
+
+Signing
+-------
+
+Sign file with EVM signature and use hash value for IMA - common case
+
+    $ evmctl sign --imahash test.txt
+
+Sign file with both IMA and EVM signatures - for immutable files
+
+    $ evmctl sign --imasig test.txt
+
+Label whole filesystem with EVM signatures
+
+    $ find / \( -fstype rootfs -o -fstype ext4 \) -exec evmctl sign --imahash '{}' \;
+
+Label filesystem in fix mode - kernel sets correct values to IMA and EVM xattrs
+
+    $ find / \( -fstype rootfs -o -fstype ext4 \) -exec sh -c "< '{}'" \;
 

configure.ac

@@ -1,7 +1,7 @@
 # autoconf script
 
 AC_PREREQ([2.65])
-AC_INIT(evm-utils, 0.1, dmitry.kasatkin@intel.com)
+AC_INIT(ima-evm-utils, 0.3, dmitry.kasatkin@intel.com)
 AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
@@ -33,7 +33,7 @@ AC_CHECK_HEADERS(openssl/conf.h)
 #debug support - yes for a while
 PKG_ARG_ENABLE(debug, "yes", DEBUG, [Enable Debug support])
 if test $pkg_cv_enable_debug = yes; then
-	CFLAGS="-g -O1 -Wall -Wstrict-prototypes -pipe"
+	CFLAGS="$CFLAGS -g -O1 -Wall -Wstrict-prototypes -pipe"
 else
 	CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -pipe -fomit-frame-pointer"
 fi
@@ -46,8 +46,7 @@ fi
 
 AC_CONFIG_FILES([Makefile
 		src/Makefile
-		tests/Makefile
+		ima-evm-utils.spec
-		evm-utils.spec
 		])
 AC_OUTPUT
 

ima-evm-utils.spec.in

@@ -1,7 +1,7 @@
 Name:		@PACKAGE_NAME@
 Version:	@PACKAGE_VERSION@
 Release:	1%{?dist}
-Summary:	evm-utils - IMA/EVM support utilities
+Summary:	@PACKAGE_NAME@ - IMA/EVM control utility
 Group:		System/Libraries
 License:	LGPLv2
 #URL:		
@@ -12,11 +12,10 @@ BuildRequires:    autoconf
 BuildRequires:    automake
 BuildRequires:    openssl-devel
 BuildRequires:    libattr-devel
-BuildRequires:    readline-devel
 BuildRequires:    keyutils-libs-devel
 
 %description
-This library provides EVM support utilities.
+This package provide IMA/EVM control utility
 
 %prep
 %setup -q
@@ -48,6 +47,6 @@ exit 0
 %{_libdir}/*
 
 %changelog
-* Wed Jul 20 2011 Dmitry Kasatkin <dmitry.kasatkin@intel.com>
+* Thu Apr 05 2012 Dmitry Kasatkin <dmitry.kasatkin@intel.com>
-- Initial package for MeeGo
+- Initial RPM spec file
 

tests/Makefile.am

@@ -1,7 +0,0 @@
-pkglib_PROGRAMS = openclose
-
-openclose_SOURCES = openclose.c
-
-dist_pkglib_SCRIPTS = evm_enable.sh evm_genkey.sh evm_sign_all.sh evm_sign_modules.sh ima_fix_dir.sh \
-			evm_hmac_all.sh evm_hmac_modules.sh
-

tests/evm_enable.sh

@@ -1,25 +0,0 @@
-#!/bin/sh
-
-# import EVM HMAC key
-keyctl clear @u
-keyctl add user kmk "testing123" @u
-keyctl add encrypted evm-key "load `cat /etc/keys/evm-key`" @u
-
-# import Moule public key
-mod_id=`keyctl newring _module @u`
-evmctl import /etc/keys/pubkey_evm.pem $mod_id
-
-# import IMA public key
-ima_id=`keyctl newring _ima @u`
-evmctl import /etc/keys/pubkey_evm.pem $ima_id
-
-# import EVM public key
-evm_id=`keyctl newring _evm @u`
-evmctl import /etc/keys/pubkey_evm.pem $evm_id
-
-# enable EVM
-echo "1" > /sys/kernel/security/evm
-
-# enable module checking
-echo "1" > /sys/kernel/security/ima/module_check
-

tests/evm_genkey.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-keyctl add user kmk "testing123" @u
-key=`keyctl add encrypted evm-key "new user:kmk 32" @u`
-keyctl print $key >/etc/keys/evm-key
-
-keyctl list @u
-

tests/evm_hmac_all.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-verbose=""
-if [ "$1" = "-v" ] ; then
-	verbose="-v"
-	shift 1
-fi
-
-dir=${1:-/}
-
-echo "Label: $dir"
-
-find $dir \( -fstype rootfs -o -fstype ext3 -o -fstype ext4 \) \( -type f -o -type d \) -exec evmctl hmac --imahash $verbose '{}' \;
-

tests/evm_hmac_modules.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-verbose=""
-if [ "$1" = "-v" ] ; then
-	verbose="-v"
-	shift 1
-fi
-
-dir=${1:-/lib/modules}
-
-echo "HMAC modules: $dir"
-
-find $dir -name "*.ko" -type f -exec evmctl hmac --imasig $verbose '{}' \;
-

tests/evm_sign_all.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-verbose=""
-if [ "$1" = "-v" ] ; then
-	verbose="-v"
-	shift 1
-fi
-
-dir=${1:-/}
-
-echo "Label: $dir"
-
-find $dir \( -fstype rootfs -o -fstype ext3 -o -fstype ext4 \) -type f -exec evmctl sign --imahash $verbose '{}' \;
-

tests/evm_sign_modules.sh

@@ -1,14 +0,0 @@
-#!/bin/sh
-
-verbose=""
-if [ "$1" = "-v" ] ; then
-	verbose="-v"
-	shift 1
-fi
-
-dir=${1:-/lib/modules}
-
-echo "Signing modules: $dir"
-
-find $dir -name "*.ko" -type f -exec evmctl sign --imasig $verbose '{}' \;
-

tests/ima_fix_dir.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-
-dir=${1:-/}
-
-echo "Fixing dir: $dir"
-
-find $dir \( -fstype rootfs -o -fstype ext3 -o -fstype ext4 \) -type f -exec openclose '{}' \;
-

tests/openclose.c

@@ -1,20 +0,0 @@
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <stdlib.h>
-
-int main(int argc, char *argv[])
-{
-	int fd;
-
-	fd = open(argv[1], O_RDONLY);
-	if (fd < 0) {
-		perror("open()");
-		exit(1);
-	}
-
-	close(fd);
-
-	return 0;
-}
-