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d149ed68e5
Two image-side hardening pieces both small enough to ship together.
deploy/nftables/nftables.conf — single ruleset installed at /etc/nftables.conf.
Default-drop input. Allowed: loopback, established/related, ratelimited
ICMP, kiosk local API :18090 from RFC1918 / RFC4193 / link-local sources
only. SSH stays gated by sshd-disabled (image build sets enable-ssh: 0
and 01-run-chroot masks it); the firewall rule for :22 is left commented
in for triage scenarios. Forward dropped. Output left wide open — kiosk
needs to dial out to arbitrary RTSP cameras + the BF server (which may
live on the public internet) without explicit allowlisting.
deploy/systemd/betterframe-firstboot.{service,sh} — runs once per device
before betterframe-kiosk starts. Generates a 24-char unambiguous-glyph
password, applies via chpasswd, stores at /etc/betterframe/admin-password
(0400 root), and prints a banner to tty1 so an HDMI-attached operator
can transcribe it during the boot window before cage takes over the
screen. Marker at /var/lib/betterframe/.firstboot-complete prevents
re-run on subsequent boots. Without this, every kiosk built from the
same image shipped with bfadmin:betterframe — a single password leak
compromises the entire fleet.
Future follow-up: post the rotated password (encrypted with cluster_key)
to the BF server via heartbeat so admin UI can surface it. Not in this
commit; the local file + tty banner are the only retrieval paths today.
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|---|---|---|
| .. | ||
| betterframe-firmware-rollback.sh | ||
| betterframe-firstboot.service | ||
| betterframe-firstboot.sh | ||
| betterframe-kiosk.service | ||
| betterframe-rauc-mark-good.service | ||
| betterframe-rauc-mark-good.sh | ||