Moving stuff to role

roles/qubes-f41-gnome/etc/modprobe.d/workstation-blacklist.conf

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+# unused network protocols
+install dccp /bin/false
+install sctp /bin/false
+install rds /bin/false
+install tipc /bin/false
+install n-hdlc /bin/false
+install ax25 /bin/false
+install netrom /bin/false
+install x25 /bin/false
+install rose /bin/false
+install decnet /bin/false
+install econet /bin/false
+install af_802154 /bin/false
+install ipx /bin/false
+install appletalk /bin/false
+install psnap /bin/false
+install p8023 /bin/false
+install p8022 /bin/false
+install can /bin/false
+install atm /bin/false
+
+# firewire and thunderbolt
+install firewire-core /bin/false
+install firewire_core /bin/false
+install firewire-ohci /bin/false
+install firewire_ohci /bin/false
+install firewire_sbp2 /bin/false
+install firewire-sbp2 /bin/false
+install firewire-net /bin/false
+install thunderbolt /bin/false
+install ohci1394 /bin/false
+install sbp2 /bin/false
+install dv1394 /bin/false
+install raw1394 /bin/false
+install video1394 /bin/false
+
+# unused filesystems
+install cramfs /bin/false
+install freevxfs /bin/false
+install jffs2 /bin/false
+install hfs /bin/false
+install hfsplus /bin/false
+install squashfs /bin/false
+install udf /bin/false
+install cifs /bin/false
+install nfs /bin/false
+install nfsv3 /bin/false
+install nfsv4 /bin/false
+install ksmbd /bin/false
+install gfs2 /bin/false
+install reiserfs /bin/false
+install kafs /bin/false
+install orangefs /bin/false
+install 9p /bin/false
+install adfs /bin/false
+install affs /bin/false
+install afs /bin/false
+install befs /bin/false
+install ceph /bin/false
+install coda /bin/false
+install ecryptfs /bin/false
+install erofs /bin/false
+install jfs /bin/false
+install minix /bin/false
+install netfs /bin/false
+install nilfs2 /bin/false
+install ocfs2 /bin/false
+install romfs /bin/false
+install ubifs /bin/false
+install zonefs /bin/false
+install sysv /bin/false
+install ufs /bin/false
+
+# disable vivid
+install vivid /bin/false
+
+# disable GNSS
+install gnss /bin/false
+install gnss-mtk /bin/false
+install gnss-serial /bin/false
+install gnss-sirf /bin/false
+install gnss-usb /bin/false
+install gnss-ubx /bin/false
+
+# https://en.wikipedia.org/wiki/Bluetooth#History_of_security_concerns
+install bluetooth /bin/false
+install btusb /bin/false
+
+# blacklist ath_pci
+blacklist ath_pci
+
+# blacklist cdrom
+blacklist cdrom
+blacklist sr_mod
+
+# blacklist framebuffer drivers
+# source, ubuntu: https://git.launchpad.net/ubuntu/+source/kmod/tree/debian/modprobe.d/blacklist-framebuffer.conf
+blacklist cyber2000fb
+blacklist cyblafb
+blacklist gx1fb
+blacklist hgafb
+blacklist kyrofb
+blacklist lxfb
+blacklist matroxfb_base
+blacklist neofb
+blacklist nvidiafb
+blacklist pm2fb
+blacklist s1d13xxxfb
+blacklist sisfb
+blacklist tdfxfb
+blacklist vesafb
+blacklist vfb
+blacklist vt8623fb
+blacklist udlfb

roles/qubes-f41-gnome/etc/ssh/ssh_config.d/10-custom.conf

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+GSSAPIAuthentication no
+VerifyHostKeyDNS yes

roles/qubes-f41-gnome/etc/sysctl.d/99-workstation.conf

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+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+dev.tty.ldisc_autoload = 0
+
+# https://access.redhat.com/solutions/1985633
+# Seems dangerous.
+# Roseta need this though, so if you use it change it to 1.
+fs.binfmt_misc.status = 0
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-userspace
+# Enable fs.protected sysctls.
+fs.protected_regular = 2
+fs.protected_fifos = 2
+fs.protected_symlinks = 1
+fs.protected_hardlinks = 1
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#core-dumps
+# Disable coredumps.
+# For additional safety, disable coredumps using ulimit and systemd too.
+kernel.core_pattern=|/bin/false
+fs.suid_dumpable = 0
+
+# Restrict dmesg to CAP_SYS_LOG.
+# https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
+kernel.dmesg_restrict = 1
+
+# https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# https://kernsec.org/wiki/index.php/Bug_Classes/Kernel_pointer_leak
+# Restrict access to /proc.
+kernel.kptr_restrict = 2
+
+# Not needed, I don't do livepatching and reboot regularly.
+# On a workstation, this shouldn't be used at all. Don't live patch, just reboot.
+kernel.kexec_load_disabled = 1
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+# Basically, restrict eBPF to CAP_BPF.
+kernel.unprivileged_bpf_disabled = 1
+net.core.bpf_jit_harden = 2
+
+# Needed for Flatpak and Bubblewrap.
+kernel.unprivileged_userns_clone = 1
+
+# Disable ptrace. Not needed on workstations.
+kernel.yama.ptrace_scope = 3
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+# Restrict performance events from unprivileged users as much as possible.
+# We are using 4 here, since Ubuntu supports such a level.
+# Official Linux kernel documentation only says >= so it probably will work.
+kernel.perf_event_paranoid = 4
+
+# Disable io_uring
+# https://docs.kernel.org/admin-guide/sysctl/kernel.html#io-uring-disabled
+# https://security.googleblog.com/2023/06/learnings-from-kctf-vrps-42-linux.html
+# Note that this will make using Proxmox extremely annoying though, so you might wanna comment this out
+# on a Proxmox node.
+kernel.io_uring_disabled = 2
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# Disable sysrq.
+kernel.sysrq = 0
+
+# https://www.stigviewer.com/stig/red_hat_enterprise_linux_6/2020-09-03/finding/V-217911
+# Not running a router here, so no redirects.
+net.ipv4.conf.*.send_redirects = 0
+net.ipv4.conf.*.accept_redirects = 0
+net.ipv6.conf.*.accept_redirects = 0
+
+# Check if the source of the IP address is reachable through the same interface it came in
+# Basic IP spoofing mitigation.
+net.ipv4.conf.*.rp_filter = 1
+
+# Do not respond to ICMP.
+net.ipv4.icmp_echo_ignore_all = 1
+net.ipv6.icmp.echo_ignore_all = 1
+
+# Ignore Bogus ICMP responses.
+net.ipv4.icmp_ignore_bogus_error_responses = 1
+
+# Enable IP Forwarding.
+# Needed for VM networking and whatnot.
+net.ipv4.ip_forward = 1
+net.ipv6.conf.all.forwarding = 1
+
+# https://www.stigviewer.com/stig/red_hat_enterprise_linux_6/2016-06-05/finding/V-38537
+# Ignore bogus icmp response.
+net.ipv4.icmp_ignore_bogus_error_responses = 1
+
+# Protection against time-wait assasination attacks.
+net.ipv4.tcp_rfc1337 = 1
+
+# Enable SYN cookies.
+# Basic SYN flood mitigation.
+net.ipv4.tcp_syncookies = 1 
+
+# https://access.redhat.com/sites/default/files/attachments/20150325_network_performance_tuning.pdf
+# Make sure TCP timestamp is enabled.
+net.ipv4.tcp_timestamps = 1
+
+# https://access.redhat.com/sites/default/files/attachments/20150325_network_performance_tuning.pdf
+# Disable TCP SACK.
+# We have good networking :)
+net.ipv4.tcp_sack = 0
+
+# No SACK, therefore no Duplicated SACK.
+net.ipv4.tcp_dsack = 0
+
+# Improve ALSR effectiveness for mmap.
+vm.mmap_rnd_bits = 32
+vm.mmap_rnd_compat_bits = 16
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# Restrict userfaultfd to CAP_SYS_PTRACE.
+# https://bugs.archlinux.org/task/62780
+# Interestingly enough, Arch does not even have userfaultfd in their kernel, so it is
+# probably not used in the real world at all.
+vm.unprivileged_userfaultfd = 0

roles/qubes-f41-gnome/etc/systemd/system/NetworkManager.service.d/99-brace.conf

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+[Service]
+# Hardening
+CapabilityBoundingSet=CAP_NET_ADMIN CAP_DAC_OVERRIDE CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT
+LockPersonality=true
+MemoryDenyWriteExecute=true
+#PrivateDevices=true #breaks tun usage
+#ProtectProc=invisible
+PrivateTmp=yes
+ProtectClock=true
+ProtectControlGroups=true
+ProtectHome=read-only
+ProtectKernelLogs=true
+#ProtectKernelModules=true
+#ProtectSystem=strict
+#ReadOnlyPaths=/etc/NetworkManager
+ReadOnlyPaths=-/home
+#ReadWritePaths=-/etc/NetworkManager/system-connections
+ReadWritePaths=-/etc/sysconfig/network-scripts
+ReadWritePaths=/var/lib/NetworkManager
+ReadWritePaths=-/var/run/NetworkManager
+ReadWritePaths=-/run/NetworkManager
+RemoveIPC=true
+RestrictNamespaces=true
+RestrictRealtime=true
+RestrictSUIDSGID=true
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+UMask=0077

roles/qubes-f41-gnome/etc/xdg-desktop-portal/portals.conf

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+[preferred]
+default=gtk;

roles/qubes-f41-gnome/tasks/main.yaml

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+- name: Configure Fedora 41 Gnome Template
+  hosts: 127.0.0.1
+  connection: local
+  tasks:
+   - name: Kill debug-shell service
+     ansible.builtin.systemd_service:
+       name: debug-shell.service
+       masked: true
+   - name: Kill kdump service
+     ansible.builtin.systemd_service:
+       name: kdump.service
+       masked: true
+   - name: Set umask to 077
+     shell: umask 077
+   - name: Set umask to 077 in login.defs
+     ansible.builtin.replace:
+      path: /etc/login.defs
+      regexp: '^UMASK.*'
+      replace: 'UMASK 077'
+
+   - name: Set umask to 077 in logins.defs
+     ansible.builtin.replace:
+      path: /etc/login.defs
+      regexp: '^HOME_MODE'
+      replace: '#HOME_MODE'
+
+   - name: Set umask to 077 in bashrc
+     ansible.builtin.replace:
+       path: /etc/bashrc
+       regexp: 'umask 022'
+       replace: 'umask 077'
+
+   - name: Make home directory private
+     ansible.builtin.file:
+       path: /home/*
+       state: directory
+       recurse: true
+       mode: '0700'
+
+   - name: Harden SSH, add kernel blacklist and hardening
+     ansible.builtin.copy:
+      src: '..{{ item }}'
+      dest: '{{ item }}'
+      mode: '0644'
+     loop:
+      - '/etc/ssh/ssh_config.d/10-custom.conf'
+      - '/etc/modprobe.d/workstation-blacklist.conf'
+      - '/etc/sysctl.d/99-workstation.conf'
+  
+
+   - name: Reload sysctl
+     shell: 'sysctl -p'
+
+   - name: Create coredump.conf.d
+     ansible.builtin.file:
+       path: '/etc/systemd/coredump.conf.d'
+       state: 'directory'
+       mode: '0755'
+   - name: Make locks dir for dconf
+     ansible.builtin.file:
+       path: '../qubes-config/etc/dconf/db/local.d/locks'
+       state: 'directory'
+       mode: '0755'
+   - name: Fix XDG portals
+     ansible.builtin.file:
+       path: '../qubes-config/etc/xdg-desktop-portal'
+       state: 'directory'
+       mode: '0755'
+
+   - name: Copy dconf files + xdg-desktop-portals fix + Network manager
+     ansible.builtin.copy:
+      src: '..{{ item }}'
+      dest: '{{ item }}'
+      mode: '0644'
+     loop:
+      - '/etc/security/limits.d/30-disable-coredump.conf'
+      - '/etc/systemd/coredump.conf.d/disable.conf'
+      - '/etc/dconf/db/local.d/locks/automount-disable'
+      - '/etc/dconf/db/local.d/locks/privacy'
+      - '/etc/dconf/db/local.d/adw-gtk3-dark'
+      - '/etc/dconf/db/local.d/automount-disable'
+      - '/etc/dconf/db/local.d/prefer-dark'
+      - '/etc/dconf/db/local.d/privacy'
+      - '/etc/xdg-desktop-portal/portals.conf'
+      - '/etc/systemd/system/NetworkManager.service.d/99-brace.conf'
+
+   - name: Update dconf
+     shell: sudo dconf update
+
+   - name: Setup ZRAM, flatpak updater and environment variables to disable GJS, WebkitGTK JIT, and fix GNOME env variable
+     ansible.builtin.copy:
+      src: '..{{ item }}'
+      dest: '{{ item }}'
+      mode: '0600'
+     loop:
+      - '/etc/systemd/zram-generator.conf'
+      - '/etc/systemd/user/update-user-flatpaks.service'
+      - '/etc/systemd/user/update-user-flatpaks.timer'
+      - '/etc/environment'
+
+   - name: Upgrade all packages
+     ansible.builtin.dnf5:
+       name: "*"
+       state: latest
+
+   - name: Mark packages as manually installed to avoid removal
+     shell: 'sudo dnf mark user flatpak gnome-menus qubes-menus -y'
+
+   - name: Remove unnecessary stuff from the template
+     ansible.builtin.dnf5:
+       name: {{ packages_to_remove }}
+       state: 'absent'
+       allowerasing: true
+       autoremove: true
+
+   - name: Install custom packages
+     ansible.builtin.dnf5:
+       name:
+         - 'qubes-ctap'
+         - 'qubes-gpg-split'
+         - 'adw-gtk3-theme'
+         - 'ncurses'
+         - 'gnome-shell'
+         - 'ptyxis'
+       state: 'present'
+   - name: Enable hardened_malloc COPR
+     shell: 'sudo dnf copr enable secureblue/hardened_malloc -y'
+
+   - name: Install hardened_malloc
+     ansible.builtin.dnf5:
+       name: 'hardened_malloc'
+       state: 'present'
+
+   - name: Enable hardened_malloc
+     ansible.builtin.copy:
+       src: '../qubes-config/etc/ld.so.preload'
+       dest: '/etc/ld.so.preload'
+       mode: '0644'
+   - name: Enable hardened_malloc for system wide flatpak
+     shell: 'sudo flatpak override --system --filesystem=host-os:ro --env=LD_PRELOAD=/var/run/host/usr/lib64/libhardened_malloc.so'
+   - name: Enable hardened_malloc for user flatpak # has to be run per APP VM
+     shell: 'flatpak override --user --filesystem=host-os:ro --env=LD_PRELOAD=/var/run/host/usr/lib64/libhardened_malloc.so'
+   - name: Setup dnf repos
+     ansible.builtin.copy:
+       src: '../qubes-config/etc/dnf/dnf.conf'
+       dest: '/etc/dnf/dnf.conf'
+       mode: '0644'
+
+   - name: Get list of files
+     ansible.builtin.find:
+       paths: /etc/yum.repos.d/
+       recurse: true
+     register: found_files
+
+   - name: Replace text in those files
+     ansible.builtin.lineinfile:
+       backup: true
+       backrefs: true
+       path: '{{ item.path }}'
+       regexp: '^(metalink=.*)$'
+       line: '\1&protocol=https'
+     loop: '{{ found_files.files }}'

roles/qubes-f41-gnome/vars/main.yaml

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+packages_to_remove:
+  - '@Container Management'
+  - '@Desktop Accessibility'
+  - '@Guest Desktop Agents'
+  - '@Printing Support'
+  - 'gnome-software'
+  - 'httpd'
+  - 'keepassxc'
+  - 'thunderbird'
+  - 'fedora-bookmarks'
+  - 'fedora-chromium-config'
+  - 'avahi'
+  - 'cifs*'
+  - '*cups'
+  - 'dmidecode'
+  - 'dnsmasq'
+  - 'geolite2*'
+  - 'mtr'
+  - 'net-snmp-libs'
+  - 'net-tools'
+  - 'nfs-utils'
+  - 'nmap-ncat'
+  - 'opensc'
+  - 'openssh-server'
+  - 'rsync'
+  - 'rygel'
+  - 'sgpio'
+  - 'tcpdump'
+  - 'teamd'
+  - 'traceroute'
+  - 'usb_modeswitch'
+  -  '*anthy*'
+  - '*hangul*'
+  - 'ibus-typing-booster'
+  - '*m17n*'
+  - '*pinyin*'
+  - '*speech*'
+  - ' words'
+  - '*zhuyin*'
+  - 'ImageMagick*'
+  - 'sane*'
+  - 'simple-scan'
+  - 'sssd*'
+  - 'realmd'
+  - 'cyrus-sasl-gssapi'
+  - 'quota*'
+  - 'dos2unix'
+  - 'kpartx'
+  - 'sos'
+  - 'samba-client'
+  - 'gvfs-smb'
+  - 'NetworkManager-pptp-gnome'
+  - 'NetworkManager-ssh-gnome'
+  - 'NetworkManager-openconnect-gnome'
+  - 'NetworkManager-openvpn-gnome'
+  - 'NetworkManager-vpnc-gnome'
+  - 'ppp*'
+  - 'ModemManager'
+  - 'baobab'
+  - 'chrome-gnome-shell'
+  - 'eog'
+  - 'gnome-boxes'
+  - 'gnome-calculator'
+  - 'gnome-calendar'
+  - 'gnome-characters'
+  - 'gnome-classic*'
+  - 'gnome-clocks'
+  - 'gnome-color-manager'
+  - 'gnome-connections'
+  - 'gnome-contacts'
+  - 'gnome-disk-utility'
+  - 'gnome-font-viewer'
+  - 'gnome-logs'
+  - 'gnome-maps'
+  - 'gnome-photos'
+  - 'gnome-remote-desktop'
+  - 'gnome-screenshot'
+  - 'gnome-shell-extension-apps-menu'
+  - 'gnome-shell-extension-background-logo'
+  - 'gnome-shell-extension-launch-new-instance'
+  - 'gnome-shell-extension-places-menu'
+  - 'gnome-shell-extension-window-list'
+  - 'gnome-text-editor'
+  - 'gnome-themes-extra'
+  - 'gnome-tour'
+  - 'gnome-user*'
+  - 'gnome-weather'
+  - 'loupe'
+  - 'snapshot'
+  - 'totem'
+  - 'abrt*'
+  - 'cheese'
+  - 'evince'
+  - 'file-roller*'
+  - 'libreoffice*'
+  - 'mediawriter'
+  - 'rhythmbox'
+  - 'yelp'
+  - 'lvm2'
+  - 'rng-tools'
+  - 'thermald'
+  - '*perl*'