mirror of
https://github.com/NixOS/nixpkgs.git
synced 2025-06-10 11:45:45 +03:00
374e6bcc40
Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:
nix-build ci -A fmt.check
This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).
This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).
Merge conflicts caused by this commit can now automatically be resolved while rebasing using the
[auto-rebase script](8616af08d9/maintainers/scripts/auto-rebase).
If you run into any problems regarding any of this, please reach out to the
[formatting team](https://nixos.org/community/teams/formatting/) by
pinging @NixOS/nix-formatting.
89 lines
2.2 KiB
Nix
89 lines
2.2 KiB
Nix
{
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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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let
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cfg = config.networking.tcpcrypt;
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in
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{
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###### interface
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options = {
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networking.tcpcrypt.enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable opportunistic TCP encryption. If the other end
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speaks Tcpcrypt, then your traffic will be encrypted; otherwise
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it will be sent in clear text. Thus, Tcpcrypt alone provides no
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guarantees -- it is best effort. If, however, a Tcpcrypt
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connection is successful and any attackers that exist are
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passive, then Tcpcrypt guarantees privacy.
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'';
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};
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};
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config = mkIf cfg.enable {
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users.users.tcpcryptd = {
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uid = config.ids.uids.tcpcryptd;
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description = "tcpcrypt daemon user";
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};
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systemd.services.tcpcrypt = {
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description = "tcpcrypt";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ];
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path = [
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pkgs.iptables
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pkgs.tcpcrypt
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pkgs.procps
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];
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preStart = ''
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mkdir -p /run/tcpcryptd
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chown tcpcryptd /run/tcpcryptd
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sysctl -n net.ipv4.tcp_ecn > /run/tcpcryptd/pre-tcpcrypt-ecn-state
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sysctl -w net.ipv4.tcp_ecn=0
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iptables -t raw -N nixos-tcpcrypt
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iptables -t raw -A nixos-tcpcrypt -p tcp -m mark --mark 0x0/0x10 -j NFQUEUE --queue-num 666
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iptables -t raw -I PREROUTING -j nixos-tcpcrypt
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iptables -t mangle -N nixos-tcpcrypt
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iptables -t mangle -A nixos-tcpcrypt -p tcp -m mark --mark 0x0/0x10 -j NFQUEUE --queue-num 666
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iptables -t mangle -I POSTROUTING -j nixos-tcpcrypt
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'';
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script = "tcpcryptd -x 0x10";
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postStop = ''
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if [ -f /run/tcpcryptd/pre-tcpcrypt-ecn-state ]; then
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sysctl -w net.ipv4.tcp_ecn=$(cat /run/tcpcryptd/pre-tcpcrypt-ecn-state)
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fi
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iptables -t mangle -D POSTROUTING -j nixos-tcpcrypt || true
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iptables -t raw -D PREROUTING -j nixos-tcpcrypt || true
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iptables -t raw -F nixos-tcpcrypt || true
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iptables -t raw -X nixos-tcpcrypt || true
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iptables -t mangle -F nixos-tcpcrypt || true
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iptables -t mangle -X nixos-tcpcrypt || true
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'';
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};
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};
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}
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