├── .gitattributes ├── .gitignore ├── LICENSE ├── README.md ├── etc └── sb-signtool │ ├── modules.conf │ └── mok.rc ├── install.sh ├── package.sh ├── sb-signtool.spec └── usr ├── bin └── sb-signtool-sign ├── lib └── systemd │ └── system │ └── sb-signtool.service └── share └── doc └── sb-signtool └── example_modules.conf /.gitattributes: -------------------------------------------------------------------------------- 1 | #common settings that generally should always be used with your language specific settings 2 | 3 | # Auto detect text files and perform LF normalization 4 | # http://davidlaing.com/2012/09/19/customise-your-gitattributes-to-become-a-git-ninja/ 5 | * text=auto 6 | 7 | # 8 | # The above will handle all files NOT found below 9 | # 10 | 11 | # Documents 12 | *.doc diff=astextplain 13 | *.DOC diff=astextplain 14 | *.docx diff=astextplain 15 | *.DOCX diff=astextplain 16 | *.dot diff=astextplain 17 | *.DOT diff=astextplain 18 | *.pdf diff=astextplain 19 | *.PDF diff=astextplain 20 | *.rtf diff=astextplain 21 | *.RTF diff=astextplain 22 | *.md text 23 | *.adoc text 24 | *.textile text 25 | *.mustache text 26 | *.csv text 27 | *.tab text 28 | *.tsv text 29 | *.sql text 30 | 31 | # Graphics 32 | *.png binary 33 | *.jpg binary 34 | *.jpeg binary 35 | *.gif binary 36 | *.tif binary 37 | *.tiff binary 38 | *.ico binary 39 | # SVG treated as an asset (binary) by default. 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Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # UEFI Secure Boot sign tool 2 | 3 | The default signed Linux kernel on [Ubuntu](https://www.ubuntu.com/) (>=16.04.x), [Fedora](https://getfedora.org/) and perhaps on other distributions as well, won't load unsigned external kernel modules if Secure Boot is enabled on [UEFI](https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface) systems. 4 | Hence, any external kernel modules like the proprietary [Nvidia kernel driver](https://www.nvidia.com/object/unix.html), [Oracle VM VirtualBox](https://www.virtualbox.org/)'s host/guest kernel driver etc. won't work. 5 | 6 | External kernel modules must be signed for UEFI Secure Boot using a Machine Owner Key (MOK). 7 | This is useful if you can't or don't wish to disable Secure Boot on your UEFI-enabled system. 8 | 9 | UEFI Secure Boot Sign Tool can be used to sign kernel modules. 10 | Essentially, it is a wrapper around the sign-file binary in the kernel sources. 11 | 12 | The systemd service can be enabled to automatically sign specific kernel modules with user's own once setup is complete. 13 | 14 | ### Install and Setup 15 | 16 | Fedora Dependencies: 17 | * kernel-devel 18 | * mokutil 19 | * openssl 20 | * Any text editor 21 | 22 | Extract/Install the files in their respective locations. Download installation script from the [releases page](https://github.com/aneesh-neelam/UEFI-SecureBoot-SignTool/releases) and run install.sh as root. 23 | 24 | # ./install.sh 25 | 26 | 27 | ###### Generating a Public and Private X.509 Key Pair: 28 | 29 | Generate a X.509 Key Pair as the UEFI Secure Boot Machine Owner Key. 30 | 31 | $ openssl req -new -x509 -newkey rsa:2048 -keyout "/etc/sb-signtool/keyfiles/sb.priv" -outform DER -out "/etc/sb-signtool/keyfiles/sb_pub.der" -nodes -days 36500 -subj "/CN=/" 32 | 33 | ###### Import Public Key into UEFI-enabled System: 34 | 35 | # mokutil --import "/etc/sb-signtool/sb_pub.der" 36 | 37 | ###### Edit the UEFI Secure Boot Sign Tool config file(s): 38 | 39 | Must edit the following file before running script: 40 | 41 | /etc/sb-signtool/modules.conf 42 | 43 | You can check out an example file in the [documentation](https://github.com/aneesh-neelam/UEFI-SecureBoot-SignTool/blob/master/usr/share/doc/sb-signtool/example_modules.conf). 44 | 45 | ### Usage 46 | 47 | Must run the Signing Tool every time a kernel module is rebuilt or when a new kernel is installed. 48 | Or enable the systemd service to do that on boot. 49 | 50 | ###### Run the UEFI Secure Boot Signing Tool: 51 | 52 | # /usr/bin/sb-signtool-sign 53 | 54 | ###### Enable the systemd service: 55 | 56 | # systemctl enable sb-signtool.service 57 | 58 | 59 | ### TODO 60 | 61 | * Packaging and distribution for Ubuntu, Fedora, Arch Linux etc. 62 | 63 | 64 | ## Contributing and License 65 | 66 | Feel free to create GitHub Issues and issue Pull Requests to contribute to this project. 67 | 68 | Code released under [GNU General Public License v2.0](https://github.com/aneesh-neelam/uefi-sb-signtool/blob/master/LICENSE). 69 | -------------------------------------------------------------------------------- /etc/sb-signtool/modules.conf: -------------------------------------------------------------------------------- 1 | Truncate this file and enter Modules' filepaths relative to /lib/modules// with the .ko extension here. 2 | See example file at /usr/share/doc/sb-signtool/example_modules.conf 3 | -------------------------------------------------------------------------------- /etc/sb-signtool/mok.rc: -------------------------------------------------------------------------------- 1 | PRIVATE_KEY_FILE="/etc/sb-signtool/keyfiles/sb.priv" 2 | PUBLIC_KEY_FILE="/etc/sb-signtool/keyfiles/sb_pub.der" 3 | -------------------------------------------------------------------------------- /install.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | VERSION="1.0" 4 | 5 | wget https://github.com/aneesh-neelam/UEFI-SecureBoot-SignTool/releases/download/1.0/sb-signtool-1.0.tar.gz 6 | tar -xzvf sb-signtool-1.0.tar.gz 7 | 8 | mkdir -p /usr/bin 9 | mkdir -p /usr/lib/systemd/system 10 | mkdir -p /usr/share/doc/sb-signtool 11 | mkdir -p /etc/sb-signtool/keyfiles 12 | 13 | install -m 755 sb-signtool-$VERSION/usr/bin/sb-signtool-sign /usr/bin/ 14 | install -m 644 sb-signtool-$VERSION/usr/lib/systemd/system/sb-signtool.service /usr/lib/systemd/system/ 15 | install -m 644 sb-signtool-$VERSION/etc/sb-signtool/modules.conf /etc/sb-signtool/ 16 | install -m 644 sb-signtool-$VERSION/etc/sb-signtool/mok.rc /etc/sb-signtool/ 17 | install -m 644 sb-signtool-$VERSION/usr/share/doc/sb-signtool/example_modules.conf /usr/share/doc/sb-signtool/ 18 | install -m 644 sb-signtool-$VERSION/usr/share/doc/sb-signtool/README.md /usr/share/doc/sb-signtool/ 19 | install -m 644 sb-signtool-$VERSION/usr/share/doc/sb-signtool/LICENSE /usr/share/doc/sb-signtool/ 20 | 21 | rm -r sb-signtool-$VERSION 22 | rm sb-signtool-1.0.tar.gz 23 | -------------------------------------------------------------------------------- /package.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | VERSION="1.0" 4 | 5 | mkdir sb-signtool-$VERSION 6 | mkdir -p sb-signtool-$VERSION/usr/bin 7 | mkdir -p sb-signtool-$VERSION/usr/lib/systemd/system 8 | mkdir -p sb-signtool-$VERSION/usr/share/doc/sb-signtool 9 | mkdir -p sb-signtool-$VERSION/etc/sb-signtool/keyfiles 10 | 11 | install -m 755 usr/bin/sb-signtool-sign sb-signtool-$VERSION/usr/bin/ 12 | install -m 644 usr/lib/systemd/system/sb-signtool.service sb-signtool-$VERSION/usr/lib/systemd/system/ 13 | install -m 644 etc/sb-signtool/modules.conf sb-signtool-$VERSION/etc/sb-signtool/ 14 | install -m 644 etc/sb-signtool/mok.rc sb-signtool-$VERSION/etc/sb-signtool/ 15 | install -m 644 usr/share/doc/sb-signtool/example_modules.conf sb-signtool-$VERSION/usr/share/doc/sb-signtool/ 16 | install -m 644 LICENSE sb-signtool-$VERSION/usr/share/doc/sb-signtool/ 17 | install -m 644 README.md sb-signtool-$VERSION/usr/share/doc/sb-signtool/ 18 | 19 | tar -zcvf sb-signtool-1.0.tar.gz sb-signtool-$VERSION/ install.sh 20 | 21 | rm -r sb-signtool-$VERSION 22 | -------------------------------------------------------------------------------- /sb-signtool.spec: -------------------------------------------------------------------------------- 1 | # WARNING 2 | # This spec file is still in progress, rpmbuild for this may not work correctly or at all at this time 3 | 4 | Name: sb-signtool 5 | Version: 1.0 6 | Release: 2%{?dist} 7 | Group: System/Kernel and hardware 8 | Summary: Script to sign kernel modules and systemd service to run during boot. 9 | 10 | URL: https://github.com/aneesh-neelam/UEFI-SecureBoot-SignTool 11 | License: GPLv2+ 12 | Source0: https://github.com/aneesh-neelam/UEFI-SecureBoot-SignTool/releases/download/%{version}/%{name}-%{version}.tar.gz 13 | 14 | Requires: kernel-devel 15 | Requires: openssl 16 | Requires: mokutil 17 | Requires: bash 18 | 19 | BuildArch: noarch 20 | 21 | %description 22 | UEFI Secure Boot Sign Tool can be used to sign kernel modules. 23 | Essentially, it is a wrapper around the sign-file binary in the kernel sources. 24 | The systemd service can be enabled to automatically sign specific kernel modules with user's own once setup is complete. 25 | 26 | %prep 27 | %autosetup 28 | 29 | %build 30 | 31 | %install 32 | mkdir -p %{buildroot}/%{_bindir} 33 | mkdir -p %{buildroot}/%{_docdir}/sb-signtool 34 | mkdir -p %{buildroot}/usr/lib/systemd/system 35 | mkdir -p %{buildroot}/%{_sysconfdir}/sb-signtool/keyfiles 36 | 37 | install -m 644 usr/bin/sb-signtool-sign %{buildroot}/usr/bin/ 38 | install -m 644 etc/sb-signtool/modules.conf %{buildroot}/%{_sysconfdir}/sb-signtool/ 39 | install -m 644 etc/sb-signtool/mok.rc %{buildroot}/%{_sysconfdir}/sb-signtool/ 40 | install -m 644 usr/share/doc/sb-signtool/example_modules.conf %{buildroot}/usr/share/doc/sb-signtool/ 41 | install -m 644 usr/lib/systemd/system/sb-signtool.service %{buildroot}/usr/lib/systemd/system/ 42 | chmod a+x %{buildroot}/usr/bin/sb-signtool-sign 43 | touch %{buildroot}/%{_sysconfdir}/sb-signtool/keyfiles/sb.priv 44 | touch %{buildroot}/%{_sysconfdir}/sb-signtool/keyfiles/sb_pub.der 45 | 46 | %post 47 | %systemd_post sb-signtool.service 48 | 49 | %preun 50 | %systemd_preun sb-signtool.service 51 | 52 | %postun 53 | %systemd_postun_with_restart sb-signtool.service 54 | 55 | 56 | %files 57 | %license usr/share/doc/sb-signtool/LICENSE 58 | %doc usr/share/doc/sb-signtool/README.md 59 | %{_bindir}/%{name}-sign 60 | %{_docdir}/sb-signtool/ 61 | %config(noreplace) %{_sysconfdir}/sb-signtool/modules.conf 62 | %config(noreplace) %{_sysconfdir}/sb-signtool/mok.rc 63 | %config(noreplace) %{_sysconfdir}/sb-signtool/keyfiles/sb.priv 64 | %config(noreplace) %{_sysconfdir}/sb-signtool/keyfiles/sb_pub.der 65 | /usr/lib/systemd/system/sb-signtool.service 66 | 67 | 68 | %changelog 69 | 70 | * Sat Sep 30 2017 Unitedrpms Project 1.0-2 71 | - Config changes 72 | - Upstream 73 | 74 | * Tue Jul 11 2017 Aneesh Neelam 75 | - Initial version of the package 76 | -------------------------------------------------------------------------------- /usr/bin/sb-signtool-sign: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # sb-signtool-sign 4 | # Sign Tool for UEFI Secure Boot 5 | # 6 | # Copyright (C) 2017 Aneesh Neelam 7 | # 8 | # This program is free software; you can redistribute it and/or modify 9 | # it under the terms of the GNU General Public License as published by 10 | # the Free Software Foundation; either version 2 of the License, or 11 | # (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License along 19 | # with this program; if not, write to the Free Software Foundation, Inc., 20 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 21 | 22 | 23 | source /etc/sb-signtool/mok.rc 24 | 25 | KERNEL=$(uname -r) 26 | KDIR=/lib/modules/"$KERNEL" 27 | 28 | while read in 29 | do 30 | $KDIR/build/scripts/sign-file sha256 $PRIVATE_KEY_FILE $PUBLIC_KEY_FILE $KDIR/$in 31 | done < /etc/sb-signtool/modules.conf 32 | -------------------------------------------------------------------------------- /usr/lib/systemd/system/sb-signtool.service: -------------------------------------------------------------------------------- 1 | [Unit] 2 | Description=Sign kernel modules on startup 3 | After=akmods.service dkms.service vboxdrv.service 4 | Before=systemd-modules-load.service 5 | 6 | [Service] 7 | Type=oneshot 8 | RemainAfterExit=yes 9 | ExecStart=/usr/bin/sb-signtool-sign 10 | 11 | [Install] 12 | WantedBy=multi-user.target 13 | -------------------------------------------------------------------------------- /usr/share/doc/sb-signtool/example_modules.conf: -------------------------------------------------------------------------------- 1 | extra/nvidia-modeset.ko 2 | extra/nvidia-drm.ko 3 | extra/nvidia.ko 4 | extra/nvidia-uvm.ko 5 | misc/vboxdrv.ko 6 | misc/vboxnetflt.ko 7 | misc/vboxpci.ko 8 | misc/vboxnetadp.ko 9 | --------------------------------------------------------------------------------