mirror of
https://github.com/NixOS/nixpkgs.git
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4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
126 lines
3.6 KiB
Nix
126 lines
3.6 KiB
Nix
# A profile with most (vanilla) hardening options enabled by default,
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# potentially at the cost of stability, features and performance.
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#
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# This profile enables options that are known to affect system
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# stability. If you experience any stability issues when using the
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# profile, try disabling it. If you report an issue and use this
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# profile, always mention that you do.
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{
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config,
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lib,
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pkgs,
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...
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}:
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with lib;
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{
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meta = {
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maintainers = [
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maintainers.joachifm
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maintainers.emily
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];
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};
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boot.kernelPackages = mkDefault pkgs.linuxPackages_hardened;
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nix.settings.allowed-users = mkDefault [ "@users" ];
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environment.memoryAllocator.provider = mkDefault "scudo";
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environment.variables.SCUDO_OPTIONS = mkDefault "ZeroContents=1";
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security.lockKernelModules = mkDefault true;
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security.protectKernelImage = mkDefault true;
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security.allowSimultaneousMultithreading = mkDefault false;
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security.forcePageTableIsolation = mkDefault true;
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# This is required by podman to run containers in rootless mode.
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security.unprivilegedUsernsClone = mkDefault config.virtualisation.containers.enable;
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security.virtualisation.flushL1DataCache = mkDefault "always";
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security.apparmor.enable = mkDefault true;
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security.apparmor.killUnconfinedConfinables = mkDefault true;
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boot.kernelParams = [
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# Don't merge slabs
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"slab_nomerge"
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# Overwrite free'd pages
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"page_poison=1"
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# Enable page allocator randomization
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"page_alloc.shuffle=1"
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# Disable debugfs
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"debugfs=off"
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];
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boot.blacklistedKernelModules = [
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# Obscure network protocols
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"ax25"
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"netrom"
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"rose"
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# Old or rare or insufficiently audited filesystems
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"adfs"
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"affs"
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"bfs"
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"befs"
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"cramfs"
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"efs"
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"erofs"
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"exofs"
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"freevxfs"
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"f2fs"
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"hfs"
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"hpfs"
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"jfs"
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"minix"
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"nilfs2"
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"ntfs"
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"omfs"
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"qnx4"
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"qnx6"
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"sysv"
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"ufs"
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];
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# Hide kptrs even for processes with CAP_SYSLOG
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boot.kernel.sysctl."kernel.kptr_restrict" = mkOverride 500 2;
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# Disable bpf() JIT (to eliminate spray attacks)
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boot.kernel.sysctl."net.core.bpf_jit_enable" = mkDefault false;
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# Disable ftrace debugging
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boot.kernel.sysctl."kernel.ftrace_enabled" = mkDefault false;
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# Enable strict reverse path filtering (that is, do not attempt to route
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# packets that "obviously" do not belong to the iface's network; dropped
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# packets are logged as martians).
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boot.kernel.sysctl."net.ipv4.conf.all.log_martians" = mkDefault true;
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boot.kernel.sysctl."net.ipv4.conf.all.rp_filter" = mkDefault "1";
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boot.kernel.sysctl."net.ipv4.conf.default.log_martians" = mkDefault true;
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boot.kernel.sysctl."net.ipv4.conf.default.rp_filter" = mkDefault "1";
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# Ignore broadcast ICMP (mitigate SMURF)
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boot.kernel.sysctl."net.ipv4.icmp_echo_ignore_broadcasts" = mkDefault true;
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# Ignore incoming ICMP redirects (note: default is needed to ensure that the
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# setting is applied to interfaces added after the sysctls are set)
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boot.kernel.sysctl."net.ipv4.conf.all.accept_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv4.conf.all.secure_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv4.conf.default.accept_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv4.conf.default.secure_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv6.conf.all.accept_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv6.conf.default.accept_redirects" = mkDefault false;
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# Ignore outgoing ICMP redirects (this is ipv4 only)
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boot.kernel.sysctl."net.ipv4.conf.all.send_redirects" = mkDefault false;
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boot.kernel.sysctl."net.ipv4.conf.default.send_redirects" = mkDefault false;
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}
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