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|
with import ./lib;
{ config, pkgs, ... }: {
options = {
tv.wwan.enable = mkEnableOption "tv.wwan";
tv.wwan.apn = mkOption {
type = with types; filename;
};
tv.wwan.device = mkOption {
type = with types; pathname;
default = "/dev/cdc-wdm0";
};
tv.wwan.interface = mkOption {
type = with types; nullOr filename;
default = null;
};
tv.wwan.operators = mkOption {
type = with types; listOf username;
default = [];
};
tv.wwan.secrets = mkOption {
type = with types; pathname;
default = toString <secrets/wwan.json>;
# format: {"pin1":number}
};
};
config = let
cfg = config.tv.wwan;
in mkIf cfg.enable {
nixpkgs.overlays = singleton (self: super: {
uqmi-wrapper = pkgs.symlinkJoin {
name = "uqmi-wrapper";
paths = [
(pkgs.writeDashBin "uqmi" ''
exec ${pkgs.uqmi}/bin/uqmi --device=${cfg.device} "$@"
'')
(pkgs.writeTextDir "share/bash-completion/completions/uqmi" /* sh */''
_uqmi_complete() {
case ''${#COMP_WORDS[@]} in
2)
COMPREPLY=($(compgen -W "$(
${pkgs.uqmi}/bin/uqmi --help 2>&1 |
${pkgs.coreutils}/bin/tr , \\n |
${pkgs.gnused}/bin/sed -nr 's/^ *(-[a-z-]+).*/\1/p'
)" -- "''${COMP_WORDS[1]}"))
;;
esac
}
complete -F _uqmi_complete uqmi
'')
pkgs.uqmi
];
};
});
systemd.services.wwan = {
environment = {
SECRETS = "%d/secrets";
};
path = [
pkgs.busybox
pkgs.coreutils
pkgs.iproute2
pkgs.jq
pkgs.uqmi-wrapper
(pkgs.writeDashBin "get-interface" (
if cfg.interface != null then /* sh */ ''
echo ${cfg.interface}
'' else /* sh */ ''
exec ${pkgs.libqmi}/bin/qmicli -d ${cfg.device} -p --get-wwan-iface
''
))
];
serviceConfig = {
LoadCredential = [
"secrets:${cfg.secrets}"
];
Type = "oneshot";
RemainAfterExit = true;
SyslogIdentifier = "wwan";
ExecStart = pkgs.writeDash "tv.wwan.start.sh" ''
set -efu
interface=$(get-interface)
pin1_status=$(
uqmi --uim-get-sim-state |
jq -r '"\(.pin1_status)/\(.pin1_verify_tries)"'
)
case $pin1_status in
verified/*)
:
;;
not_verified/3)
pin1=$(jq .pin1 "$SECRETS")
echo "verifying PIN1" >&2
if ! uqmi --uim-verify-pin1 "$pin1"; then
echo "error: failed to verify PIN1" >&2
exit 1
fi
;;
not_verified/*)
echo "error: not trying to verify PIN1: not enough tries left" >&2
echo \
"please check your configuration in ${cfg.secrets}" \
" and verify if manually using:" \
" ${pkgs.uqmi}/bin/uqmi -d $device --uim-veriy-pin1 XXXX" \
>&2
exit 1
esac
raw_ip_path=/sys/class/net/$interface/qmi/raw_ip
raw_ip=$(cat "$raw_ip_path")
if [ "$raw_ip" != Y ]; then
echo "enabling raw-ip" >&2
if ! echo Y > "$raw_ip_path"; then
echo "error: failed to enable raw-ip" >&2
exit 1
fi
fi
operating_mode=$(uqmi --get-device-operating-mode | tr -d \")
case $operating_mode in
online)
:
;;
persistent_low_power|low_power)
echo "settings device operating mode to online" >&2
uqmi --set-device-operating-mode online
operating_mode=$(uqmi --get-device-operating-mode | tr -d \")
if test "$operating_mode" != online; then
echo "error: failed to set device operating mode to online" >&2
exit 1
fi
;;
*)
echo "error: don't know how to change device operating mode to online: $operating_mode" >&2
exit 1
esac
ip link set dev "$interface" up
data_status=$(uqmi --get-data-status | tr -d \")
case $data_status in
connected)
:
;;
disconnected)
echo "starting network (APN=${cfg.apn})" >&2
sleep 1
uqmi \
--start-network \
--autoconnect \
--apn ${cfg.apn} \
--ip-family ipv4
sleep 1
;;
*)
echo "error: unsupported data status: $data_status" >&2
exit 1
esac
udhcpc -q -f -n -i "$interface"
'';
Restart = "on-failure";
ExecStop = pkgs.writeDash "tv.wwan.stop.sh" ''
set -efu
interface=$(get-interface)
ip addr flush "$interface"
ip link set dev "$interface" down
uqmi --stop-network 0xFFFFFFFF --autoconnect
uqmi --sync
uqmi --set-device-operating-mode persistent_low_power
'';
};
};
users.users.root.packages = [
pkgs.uqmi-wrapper
];
tv.systemd.services.wwan.operators = cfg.operators;
};
}
|
