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|
{
inputs = {
nixpkgs.url = "github:malte-v/nixpkgs/libguestfs-appliance-fix";
flake-utils.url = "github:numtide/flake-utils";
ddvk-stuff = {
url = "github:ddvk/stuff";
flake = false;
};
};
outputs = { self, nixpkgs, flake-utils, ddvk-stuff }: flake-utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs { inherit system; };
updateArchive = pkgs.fetchurl {
url = "https://updates-download.cloud.remarkable.engineering/build/reMarkable%20Device/reMarkable2/3.10.2.2063/3.10.2.2063_reMarkable2-zKnOgdh8c5.signed";
hash = "sha256-2w2hE4EG1i8B5TORn+n0gAIHNhsey/NHMsv+cCApHVQ=";
};
sshPassword = "1234";
sshPort = 43922;
httpPort = 43980;
xochitlConfig = pkgs.writeText "xochitl.conf" ''
[General]
DeveloperPassword=${sshPassword}
wifion=false
WebInterfaceEnabled=true
'';
usbMacAddr = "52:54:00:12:34:56";
ifnameUdevRule = pkgs.writeText "70-persistent-net.rules" ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", \
ATTR{address}=="${usbMacAddr}", \
ATTR{type}=="1", KERNEL=="eth*", NAME="usb0"
'';
xochitlService = pkgs.writeText "xochitl.service" ''
[Unit]
Description=reMarkable main application
After=home.mount
[Service]
ExecStart=/usr/bin/xochitl --system
Restart=always
# restart every 15min to avoid xochitl entering sleep mode
RuntimeMaxSec=900
# required to make xochitl run
Environment=LD_PRELOAD=/usr/lib/libfakefbdev.so
[Install]
WantedBy=multi-user.target
'';
fakefbdev = pkgs.pkgsCross.remarkable2.gcc11Stdenv.mkDerivation {
name = "fakefbdev";
src = ./fakefbdev;
installFlags = [ "DESTDIR=${placeholder "out"}" ];
};
ext4Rootfs = pkgs.runCommand "rm-rootfs.ext4"
{
nativeBuildInputs = with pkgs; [
(python3.withPackages (pypkgs: [ pypkgs.protobuf ]))
qemu
libguestfs-with-appliance
];
} ''
python3 ${ddvk-stuff}/extractor/extractor.py ${updateArchive} $out
'';
rootfs = pkgs.runCommand "rm-rootfs.qcow2"
{
nativeBuildInputs = with pkgs; [
(python3.withPackages (pypkgs: [ pypkgs.protobuf ]))
qemu
libguestfs-with-appliance
];
} ''
python3 ${ddvk-stuff}/extractor/extractor.py ${updateArchive} rootfs.ext4
qemu-img create -f qcow2 $out 8G
guestfish --rw --blocksize=512 --add $out <<EOF
run
part-init /dev/sda mbr
part-add /dev/sda p 2048 43007
part-add /dev/sda p 43008 595967
part-add /dev/sda p 595968 1148927
part-add /dev/sda p 1148928 14942207
mkfs vfat /dev/sda1
upload rootfs.ext4 /dev/sda2
mkfs ext4 /dev/sda3
mkfs ext4 /dev/sda4
mount /dev/sda2 /
download /etc/fstab fstab
! sed -i 's/mmcblk2p/vda/' fstab
upload fstab /etc/fstab
upload ${ifnameUdevRule} /etc/udev/rules.d/70-persistent-net.rules
download /lib/systemd/system/dhcpcd.service dhcpcd.service
! sed -i 's/wlan/usb/' dhcpcd.service
upload dhcpcd.service /lib/systemd/system/dhcpcd.service
rm /lib/systemd/system/remarkable-fail.service
rm /lib/systemd/system/rm-sync.service
upload ${xochitlService} /lib/systemd/system/xochitl.service
upload ${fakefbdev}/lib/libfakefbdev.so /usr/lib/libfakefbdev.so
chmod 0755 /usr/lib/libfakefbdev.so
mount /dev/sda4 /home
cp-a /etc/skel /home/root
mkdir-p /home/root/.local/share/remarkable/xochitl
mkdir-p /home/root/.config/remarkable
upload ${xochitlConfig} /home/root/.config/remarkable/xochitl.conf
EOF
'';
kernel = pkgs.pkgsCross.armv7l-hf-multiplatform.linux_5_4.override {
# structuredExtraConfig = with pkgs.lib.kernel; {
# PCI = yes;
# VIRTIO_PCI = yes;
# PCI_HOST_GENERIC = yes;
# };
};
server = pkgs.writeShellApplication {
name = "reMder-server";
runtimeInputs = [ pkgs.qemu ];
text = ''
qemu-img create -b ${rootfs} -F qcow2 -f qcow2 ./reMder.qcow2
# TODO switch to pci virtio devices? (uncomment kernel config above)
qemu-system-arm \
-machine virt \
-m 2048 \
-kernel ${kernel}/zImage \
-drive if=none,file=./reMder.qcow2,format=qcow2,id=hd \
-device virtio-blk-device,drive=hd \
-netdev user,hostfwd=tcp::${toString sshPort}-:22,hostfwd=tcp::${toString httpPort}-:80,id=net \
-device virtio-net-device,netdev=net,mac=${usbMacAddr} \
-append "console=ttyAMA0 rootfstype=ext4 root=/dev/vda2 rw rootwait init=/sbin/init" \
-serial stdio \
-monitor none \
-nographic
'';
};
client = pkgs.writeShellApplication {
name = "reMder-client";
runtimeInputs = with pkgs; [ curl openssh sshpass ];
text =
let
ssh = "sshpass -p ${sshPassword} ssh -q -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p ${toString sshPort}";
scp = "sshpass -p ${sshPassword} scp -q -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -P ${toString sshPort}";
guest = "root@127.0.0.1";
documentDir = "/home/root/.local/share/remarkable/xochitl";
in
''
in="$1"
out="$2"
in_basename="$(basename "$in")"
${ssh} ${guest} rm -rf ${documentDir}
${ssh} ${guest} mkdir ${documentDir}
${scp} "$in" ${guest}:${documentDir}
${ssh} ${guest} unzip "${documentDir}/$in_basename" -d ${documentDir}
doc_id="$(${ssh} ${guest} find ${documentDir} -mindepth 1 -type d ! -name '\*.\*' -exec basename {} '\;')"
curl -o "$out" "http://127.0.0.1:${toString httpPort}/download/$doc_id/placeholder"
'';
};
reMder = pkgs.symlinkJoin {
name = "reMder";
paths = [ client server ];
};
in
{
packages = {
inherit reMder fakefbdev ext4Rootfs;
};
defaultPackage = reMder;
}
);
}
|