Files
fips/docs/reference/cli-fips.md
T
redshiftandJohnathan Corgan cdb03c76b0 Follow the macOS install layout for config, ACL, and identity paths
The macOS packaging installs config under /usr/local/etc/fips, wired through
the launchd plist and build-pkg.sh, but the default-path constants and the
config search path were hardcoded to /etc/fips for all Unix. On macOS the
daemon and fipsctl therefore looked in a directory that does not exist: the
ACL and host-map loaders hit their NotFound no-op arm and returned empty
state, so a populated peers.deny reported effective_mode "default_open" with
enforcement inactive, and host-file aliases went unloaded, with no error.

The peers.allow, peers.deny and hosts defaults now follow the platform's
packaging, and fipsctl keygen writes its identity there too. The config
search path keeps probing /etc/fips first and adds /usr/local/etc/fips after
it, so an existing install keeps working across the upgrade and the packaged
file still wins over a stale leftover. Both the macOS search-path entry and
the keygen output directory read one SYSTEM_CONFIG_DIR constant, so they
cannot drift apart. At startup the daemon warns once about hosts, peers.allow
or peers.deny stranded at the old location; the config file is deliberately
excluded, since both directories stay on the search path and a config left
behind is still read.

The control-socket snapshot tests repoint the ACL reloader at non-existent
paths under the temp dir, so the snapshot no longer reflects whatever ACL
files happen to exist on the machine running the tests.

Platform-gated unit tests pin both layouts, so a future refactor cannot
silently drift either one. Linux and Windows behavior is unchanged.

Adding a second system config directory moves the directory the daemon
derives the identity key path from, since that comes from whichever config
file loaded last. A host carrying fips.yaml at both locations would have
resolved fips.key to the new directory, found none, and under persistent
generated a fresh identity, silently changing its npub, routing address and
mesh IPv6 with no migration path. The daemon now adopts a key stranded at the
legacy path and warns to move it rather than generating one. The fallback is
confined to keys resolved from the system config directory, so a run using
./fips.yaml or a user config is never redirected to a system key.

Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com>
2026-08-09 13:40:56 +00:00

3.8 KiB

fips

The FIPS mesh network daemon.

Synopsis

fips [-c FILE]

On Windows the same binary additionally accepts --install-service, --uninstall-service, and (used internally by the service control manager) --service.

Description

fips is the FIPS daemon. It loads a YAML configuration, resolves an identity, brings up the TUN adapter, listens on configured transports, authenticates peers, maintains the spanning tree, and forwards mesh traffic. There is one daemon per node.

The daemon stays in the foreground, logging to stderr, until it receives SIGINT or SIGTERM. On Windows, the service variant is controlled through the standard service control manager.

Options

Flag Argument Description
-c, --config FILE Use FILE as the configuration. Skips the default search paths.
-V Print the short version (e.g. 0.4.0 (rev abcdef1)).
--version Print the long version: short version plus build target triple.
-h, --help Print usage and exit.
--install-service (Windows only) Install fips as a Windows service. Requires Administrator.
--uninstall-service (Windows only) Uninstall the Windows service. Requires Administrator.
--service (Windows only, internal) Run as a Windows service. Invoked by the service control manager — not for direct use.

There are no other CLI flags; all daemon behaviour is governed by the YAML configuration. See configuration.md.

Exit Codes

Code Meaning
0 Clean shutdown after SIGINT / SIGTERM.
1 Failed to load configuration, resolve identity, construct the node, or start the node. The reason is printed to stderr before exit.

Environment

Variable Description
RUST_LOG Tracing filter directive. Overrides node.log_level from the config. Examples: info, debug, fips=trace,fips::node::handlers::mmp=debug.
XDG_RUNTIME_DIR Used to derive the default control-socket path when /run/fips does not exist. See control-socket.md.
FIPS_CONFIG (Windows service mode only) Path to the configuration file when the daemon runs under the service control manager.

The daemon also clamps the nostr_relay_pool, nostr_sdk, and nostr log targets to info whenever the effective log level is below trace, so that RUST_LOG=debug does not flood the journal with raw relay frames. To see those frames, set the level to trace.

Files

fips looks for fips.yaml in the following locations, lowest to highest priority. All present files are merged in priority order; the highest-priority value wins.

Priority Path Purpose
1 /usr/local/etc/fips/fips.yaml (macOS), /etc/fips/fips.yaml (other Unix) System-wide defaults
2 ~/.config/fips/fips.yaml User preferences
3 ~/.fips.yaml Legacy user config
4 ./fips.yaml Deployment-specific overrides

Adjacent to the highest-priority config file the daemon reads (or writes, on first start) the identity files:

File Mode Purpose
fips.key 0600 Bech32 nsec for the persistent identity (Unix only; Windows inherits parent ACLs).
fips.pub 0644 Bech32 npub corresponding to fips.key.

When node.identity.persistent is false (the default), a fresh keypair is written to these files on every start.

The control socket path is derived per control-socket.md.

See also