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fips/packaging/README.md
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sandwichandJohnathan Corgan 3733349d33 packaging(nix): add a Nix flake for reproducible from-source builds
Add a flake that builds all four binaries (fips, fipsctl, fips-gateway,
fipstop) on Linux and macOS, pinning the exact toolchain from
rust-toolchain.toml (1.94.1 + rustfmt/clippy) via fenix so Nix builds
match CI and the AUR/Debian packaging.

Wire up the build-time native deps the source tree needs: pkg-config and
bindgenHook (libclang) for the rustables/libdbus-sys bindgen step, and
dbus for bluer's BLE support. autoPatchelfHook rewrites the binary RPATHs
so the daemon resolves libdbus-1.so.3 and libgcc_s.so.1 from the Nix store
at runtime — without it `fips` fails to load on NixOS, which has no global
/usr/lib.

Outputs: packages.{default,fips}, apps for each binary, checks.fips, and a
devShell with the pinned toolchain plus cargo-edit. Tests are skipped in
the package build since they exercise TUN devices, raw sockets, and mDNS
that aren't available in the sandbox, mirroring the AUR/Debian packaging.

Verified end-to-end in a pure Nix store (nixos/nix container): nix build,
nix flake check, and running all four binaries succeed against the
committed flake.lock.

Documented across the install and developer docs: a Nix / NixOS section in
packaging/README.md, the from-source guide in docs/getting-started.md
(noting the flake produces binaries only, with NixOS system integration
through the system configuration rather than the installer), the CHANGELOG,
README, CONTRIBUTING, and the v0.4.0 release notes.

Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com>
2026-06-17 16:36:38 +00:00

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Markdown

# FIPS Packaging
This directory contains packaging for all supported target platforms.
All build outputs go to `deploy/` at the project root.
## Quick Start
```sh
make deb # Debian/Ubuntu .deb
make tarball # systemd install tarball
make ipk # OpenWrt .ipk
make aur # Arch Linux AUR package (fips-git, local build + namcap)
make pkg # macOS .pkg installer
make zip # Windows .zip package
make all # deb + tarball (default)
```
## Build Prerequisites
These targets build FIPS from source, so the host needs a build
environment in addition to a Rust toolchain (the version pinned in
`rust-toolchain.toml` is auto-installed by rustup).
On Linux, `libclang` is **required**: the LAN gateway's nftables
bindings are generated by `bindgen` at build time, which needs
`libclang.so` on the build host. Without it the build fails inside the
`rustables` crate with an "Unable to find libclang" error.
```sh
sudo apt install libclang-dev # Debian / Ubuntu
```
This is a build-time prerequisite only — it is not a runtime
dependency, so hosts installing a pre-built `.deb` do not need it.
BLE support is optional and, when building with it, additionally needs
`bluez`, `libdbus-1-dev`, and `pkg-config`; the build picks up BLE if
those are present and skips it cleanly if not.
## Directory Structure
```text
packaging/
aur/ Arch Linux AUR packaging (PKGBUILD, supporting files)
common/ Shared assets (default config, hosts file)
debian/ Debian/Ubuntu .deb packaging via cargo-deb
macos/ macOS .pkg installer via pkgbuild
systemd/ Generic Linux systemd tarball packaging
openwrt/ OpenWrt .ipk packaging via cargo-zigbuild
windows/ Windows .zip package with service scripts
```
## Formats
### Debian/Ubuntu (`.deb`)
Built with [cargo-deb](https://github.com/kornelski/cargo-deb). Installs
`fips`, `fipsctl`, and `fipstop` to `/usr/bin/`, and enables the systemd
service.
The default configuration ships as an example at
`/usr/share/fips/fips.yaml.example` and is **not** a dpkg conf-file.
(It is deliberately **not** under `/usr/share/doc`, which minimal and
container installs path-exclude, since the postinst reads it at install
time.)
On install, `postinst` seeds `/etc/fips/fips.yaml` (mode 600) from the
example **only if it does not already exist**, so a configuration that
was rendered by configuration management or edited by an operator is
never prompted for or clobbered on upgrade. To reset to defaults, remove
`/etc/fips/fips.yaml` and reinstall, or copy the example back manually.
```sh
# Build
make deb
# Install
sudo dpkg -i deploy/fips_<version>_<arch>.deb
# Remove (preserves config and keys)
sudo dpkg -r fips
# Purge (removes config and identity keys)
sudo dpkg -P fips
```
### systemd Tarball
A self-contained tarball with binaries and an `install.sh` script for
any systemd-based Linux distribution.
```sh
# Build
make tarball
# Install (on target host)
tar -xzf deploy/fips-<version>-linux-<arch>.tar.gz
sudo ./fips-<version>-linux-<arch>/install.sh
```
See [systemd/README.install.md](systemd/README.install.md) for full
installation and configuration instructions.
### OpenWrt (`.ipk`)
Cross-compiled with cargo-zigbuild and assembled as a standard `.ipk`
archive. Supports aarch64, mipsel, mips, arm, and x86\_64 targets.
```sh
# Build (default: aarch64)
make ipk
# Build for a specific architecture
bash packaging/openwrt/build-ipk.sh --arch mipsel
```
See [openwrt/README.md](openwrt/README.md) for router-specific
installation instructions.
### macOS (`.pkg`)
Built with `pkgbuild` (included with Xcode command-line tools). Installs
binaries to `/usr/local/bin/`, config to `/usr/local/etc/fips/`, sets up
the `/etc/resolver/fips` DNS resolver for `.fips` domains, and loads a
launchd daemon. The TUN device is named `utun<N>` (kernel-assigned)
rather than `fips0`.
```sh
# Build
make pkg
# Install
sudo installer -pkg deploy/fips-<version>-macos-<arch>.pkg -target /
# Remove
sudo packaging/macos/uninstall.sh
```
### Windows (`.zip`)
A ZIP archive containing binaries, default config, and PowerShell
service helper scripts. Requires the [wintun](https://www.wintun.net/)
driver for TUN support.
```powershell
# Build
make zip
# Or directly
powershell -File packaging/windows/build-zip.ps1
# Extract and install as service (requires Administrator)
Expand-Archive deploy\fips-<version>-windows-x86_64.zip -DestinationPath fips
cd fips
powershell -File install-service.ps1
# Uninstall (preserves config)
powershell -File uninstall-service.ps1
# Uninstall and remove config
powershell -File uninstall-service.ps1 -RemoveAll
```
### Arch Linux (AUR)
Two AUR packages are maintained: `fips` (release, builds from tagged
tarball) and `fips-git` (development, builds from latest git master).
```sh
# Build and validate locally (git variant)
make aur
# Install from AUR
yay -S fips-git # development build from master
yay -S fips # release build from latest tag
```
See [aur/README.md](aur/README.md) for AUR publication instructions
and maintainer guide.
### Nix / NixOS (flake)
A [flake](../flake.nix) at the project root builds all four binaries
(`fips`, `fipsctl`, `fips-gateway`, `fipstop`) from source. It pins the
exact toolchain from `rust-toolchain.toml` via
[fenix](https://github.com/nix-community/fenix) and wires up the
build-time native dependencies (`libclang` for `bindgen`, plus `dbus`
and `pkg-config` for BLE), so it needs no system setup beyond Nix with
flakes enabled.
```sh
nix build .#fips # build the package (all four binaries)
nix run .#fips -- --help # run a binary directly
nix run .#fipsctl -- status
nix develop # dev shell with the pinned toolchain + cargo-edit
nix flake check # build + validate the flake
```
Add to a NixOS configuration via the flake's `packages.<system>.fips`
output, e.g. `environment.systemPackages = [ fips.packages.${system}.default ];`.
## Shared Assets
`common/` contains assets used across packaging formats:
- `fips.yaml` — default configuration (ephemeral identity, UDP/TCP/TUN/DNS)
- `hosts` — static hostname-to-npub mappings for `.fips` DNS resolution