mirror of
https://github.com/jmcorgan/fips.git
synced 2026-10-05 19:18:25 +00:00
Johnathan Corgan
c99e6d3908
When the package was purged, or the tarball uninstalled, while fips-dns was not running, fips-dns-teardown never ran and the DNS routing that fips-dns-setup wrote stayed behind. The cleanup in postrm purge and in uninstall.sh was meant to catch that case but removed the dns-delegate file from the wrong directory (dns-delegate/ instead of dns-delegate.d/), never removed the systemd-resolved global drop-in, and restarted no resolver. systemd-resolved kept sending .fips queries to [::1]:5354, where nothing listens any more, so .fips lookups timed out. Both scripts now remove all four files fips-dns-setup can write, and restart systemd-resolved, reload dnsmasq or reload NetworkManager when they removed that resolver's file and it is running. A failed restart prints a warning and does not fail the removal. A packaging test pins both scripts to the paths fips-dns-setup and fips-dns-teardown use, and the deb-install scenario now purges the package with the routing file in place and fips-dns stopped, checking the file is gone and systemd-resolved restarted. The CI comment on the arm64 leg is corrected to say that leg now runs that purge. No suite runs uninstall.sh, and the test's doc comment says so.
122 lines
3.8 KiB
Bash
Executable File
122 lines
3.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# FIPS Uninstall Script
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#
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# Removes the FIPS daemon, service, and optionally configuration.
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#
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# Usage: sudo ./uninstall.sh [--purge]
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# --purge Also remove /etc/fips/ and the fips system group
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set -euo pipefail
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PURGE=false
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if [ "${1:-}" = "--purge" ]; then
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PURGE=true
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fi
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if [ "$(id -u)" -ne 0 ]; then
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echo "Error: This script must be run as root (use sudo)." >&2
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exit 1
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fi
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# --- Stop and disable services ---
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# Stop dependents (firewall, gateway, dns) before the daemon to avoid
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# noisy "fips0 disappeared" cascades during the teardown.
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for unit in fips-gateway.service fips-firewall.service fips-dns.service fips.service; do
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if systemctl is-active --quiet "${unit}" 2>/dev/null; then
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echo "Stopping ${unit}..."
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systemctl stop "${unit}"
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fi
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if systemctl is-enabled --quiet "${unit}" 2>/dev/null; then
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systemctl disable "${unit}"
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fi
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done
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# --- Remove systemd units ---
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rm -f /etc/systemd/system/fips.service
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rm -f /etc/systemd/system/fips-dns.service
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rm -f /etc/systemd/system/fips-gateway.service
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rm -f /etc/systemd/system/fips-firewall.service
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rm -rf /usr/lib/fips/
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systemctl daemon-reload
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echo "systemd units and DNS scripts removed."
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# --- Remove DNS routing ---
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# fips-dns-setup may have written one of these, and stopping fips-dns.service
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# above runs fips-dns-teardown only when the unit was active. The paths match
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# packaging/common/fips-dns-teardown.
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restart_resolved=false
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if [ -f /etc/systemd/dns-delegate.d/fips.dns-delegate ]; then
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rm -f /etc/systemd/dns-delegate.d/fips.dns-delegate
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echo "Removed /etc/systemd/dns-delegate.d/fips.dns-delegate."
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restart_resolved=true
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fi
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if [ -f /etc/systemd/resolved.conf.d/fips.conf ]; then
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rm -f /etc/systemd/resolved.conf.d/fips.conf
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echo "Removed /etc/systemd/resolved.conf.d/fips.conf."
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restart_resolved=true
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fi
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# Only pre-v0.3.0 development builds wrote this path, and systemd never read it.
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rm -f /etc/systemd/dns-delegate/fips.dns-delegate
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if $restart_resolved && systemctl is-active --quiet systemd-resolved.service 2>/dev/null; then
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if systemctl restart systemd-resolved; then
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echo "systemd-resolved restarted."
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else
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echo "Warning: could not restart systemd-resolved; restart it to drop the .fips route." >&2
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fi
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fi
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if [ -f /etc/dnsmasq.d/fips.conf ]; then
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rm -f /etc/dnsmasq.d/fips.conf
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echo "Removed /etc/dnsmasq.d/fips.conf."
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if systemctl is-active --quiet dnsmasq.service 2>/dev/null; then
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if systemctl reload dnsmasq; then
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echo "dnsmasq reloaded."
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else
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echo "Warning: could not reload dnsmasq; reload it to drop the .fips route." >&2
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fi
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fi
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fi
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if [ -f /etc/NetworkManager/dnsmasq.d/fips.conf ]; then
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rm -f /etc/NetworkManager/dnsmasq.d/fips.conf
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echo "Removed /etc/NetworkManager/dnsmasq.d/fips.conf."
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if systemctl is-active --quiet NetworkManager.service 2>/dev/null \
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&& command -v nmcli >/dev/null 2>&1; then
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if nmcli general reload; then
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echo "NetworkManager reloaded."
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else
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echo "Warning: could not reload NetworkManager; reload it to drop the .fips route." >&2
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fi
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fi
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fi
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# --- Remove tmpfiles.d entry ---
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rm -f /etc/tmpfiles.d/fips.conf
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# --- Remove binaries ---
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rm -f /usr/local/bin/fips /usr/local/bin/fipsctl /usr/local/bin/fipstop /usr/local/bin/fips-gateway
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echo "Binaries removed."
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# --- Optionally remove configuration and group ---
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if $PURGE; then
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echo "Purging /etc/fips/ (including identity key files)..."
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rm -rf /etc/fips/
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if getent group fips &>/dev/null; then
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groupdel fips
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echo "System group 'fips' removed."
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fi
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echo "Configuration and group removed."
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else
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echo "Configuration and identity preserved at /etc/fips/"
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echo " Use --purge to remove everything (including key files and group)."
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fi
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echo ""
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echo "Uninstall complete."
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