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eg25-manager.service: remove modem_power module & point to the right UART

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Colin 2023-08-15 10:46:18 +00:00
parent 8f87e49606
commit db99043753
1 changed files with 45 additions and 2 deletions
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47
modules/services/eg25-manager.nix
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@ -4,6 +4,12 @@
{ config, lib, pkgs, ... }:
let
cfg = config.sane.services.eg25-manager;
eg25-config-toml = pkgs.writeText "eg25-manager-config.toml" ''
# config here is applied *on top of* the per-device configs shipped by eg25-manager.
# these values take precedence, but there's no need to redefine things if we don't want them changed
[at]
uart = "/dev/ttyUSB2"
'';
in
{
options.sane.services.eg25-manager = {
@ -12,8 +18,45 @@ in
config = lib.mkIf cfg.enable {
# eg25-manager package ships udev rules *and* a systemd service.
# for that reason, i think it needs to be on the system path for the systemd service to be enabled.
systemd.packages = [ pkgs.eg25-manager ];
services.udev.packages = [ pkgs.eg25-manager ];
systemd.services.eg25-manager.wantedBy = [ "multi-user.target" ];
# but actually, let's define our own systemd service so that we can control config
systemd.services.eg25-manager = {
serviceConfig = {
Type = "simple";
ExecStart = "${pkgs.eg25-manager}/bin/eg25-manager --config ${eg25-config-toml}";
ExecStartPre = pkgs.writeShellScript "unload-modem-power" ''
${pkgs.kmod}/bin/modprobe -r modem_power && echo "WARNING: kernel configured with CONFIG_MODEM_POWER=y, may be incompatible with eg25-manager" || true
'';
Restart = "on-failure";
# sandboxing (taken from the service file shipped by eg25-manager):
ProtectControlGroups = true;
ProtectHome = true;
ProtectSystem = "strict";
RestrictSUIDSGID = true;
PrivateTmp = true;
MemoryDenyWriteExecute = true;
PrivateMounts = true;
NoNewPrivileges = true;
CapabilityBoundingSet = [ "" ];
LockPersonality = true;
};
before = [ "ModemManager.service" ];
wantedBy = [ "multi-user.target" ];
};
# systemd.packages = [ pkgs.eg25-manager ];
# systemd.services.eg25-manager.wantedBy = [ "multi-user.target" ];
# systemd.services.prepare-eg25-manager = {
# description = "unload megi's modem_power module to provide gpio access to eg25-manager";
# serviceConfig.Type = "oneshot";
# wantedBy = [ "eg25-manager.service" ];
# before = [ "eg25-manager.service" ];
# script = ''
# ${pkgs.kmod}/bin/modprobe -r modem_power && echo "WARNING: kernel configured with CONFIG_MODEM_POWER=y, may be incompatible with eg25-manager" || true
# '';
# };
};
}