Three issues caused by the rebase onto origin/main:
1. encryption-setup.sh: restore aes_xts, xts, sha512 initramfs modules
that were lost when resolving whitespace conflict
2. security-hardening.sh: add missing configure_ssh() function that
creates hardened sshd_config as defense-in-depth (FR-006 client-only)
3. AGENTS.md: fix section headings to match test expectations
(MANDATORY SECURITY REQUIREMENTS, DOCKER-ONLY WORKFLOW, AGENT WORKFLOW)
All 830 tests now pass (was 815 pass / 15 fail).
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Assisted-by: GLM-4.7 via Crush <crush@charm.land>
This commit addresses every shellcheck warning (severity: warning and
above) across the project's shell scripts. Only SC1091 info-level
notices remain (sourced files not available during static analysis),
which is expected and unavoidable in the Docker build workflow.
Changes by file:
src/build-iso.sh
- Replace Unicode checkmark/cross characters (✓, ✗) with ASCII
equivalents (PASS:, FAIL:) to eliminate commitBuffer encoding errors
- Replace useless `cat | cut` pipeline with direct file redirect
(`cut -d' ' -f1 < file`), resolving SC2002
src/security-hardening.sh
- Pass optional arguments through the function call chain in
apply_security_hardening() to resolve SC2119/SC2120 (functions
reference $1 but are called without arguments)
src/firewall-setup.sh
- Pass optional arguments through apply_firewall() in main() to
resolve SC2119/SC2120
config/hooks/installed/encryption-setup.sh
- Consolidate four individual `echo >> file` redirects into a single
`{ cmd1; cmd2; } >> file` block, resolving SC2129
- Add shellcheck disable directive for intentional SC2016 in sed
command (single quotes are required by sed, not a mistake)
config/hooks/installed/encryption-validation.sh
- Replace remaining Unicode checkmark characters with ASCII
Verification:
shellcheck --severity=warning src/*.sh config/hooks/**/*.sh
=> zero warnings, zero errors
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Assisted-by: GLM-4.7 via Crush <crush@charm.land>
Debian partman-crypto does not support preseed configuration for KDF
type, defaulting to PBKDF2. PRD requires Argon2id for its superior
resistance to GPU-based attacks.
Solution: Post-install hook that creates:
- /usr/local/bin/convert-luks-kdf.sh: User-runnable script to convert
PBKDF2 to Argon2id with proper parameters (memory=1GB, parallelism=4)
- /etc/profile.d/knel-kdf-reminder.sh: Login reminder until conversion
- Updated /var/backups/keys/README.txt with conversion instructions
Tests added (3 new):
- Argon2id KDF configuration hook or script exists
- KDF conversion helper script is created
- User receives notification about KDF optimization
Reference: docs/PRD.md encryption requirements
Audit: FINDING-005 (2026-02-20)
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The preseed.cfg creates user 'football' but hooks referenced 'kneluser'.
This inconsistency would cause runtime failures during installation.
Changes:
- config/hooks/installed/encryption-validation.sh: s/kneluser/football/g
- config/hooks/live/usb-automount.sh: s/kneluser/football/g
- config/hooks/installed/install-scripts.sh: s/kneluser/football/g
- tests/unit/encryption-validation_test.bats: Add 5 tests for username consistency
Fixes: FINDING-008 (User account inconsistency)
Reference: PRD.md user account requirements
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Assisted-by: Claude via Crush <crush@charm.land>
Improve code quality by addressing shellcheck warnings
across security-critical scripts.
src/security-hardening.sh:
- Add shellcheck directive for SC2120/SC2119
- Function configure_password_policy() accepts optional args
- Directive documents intentional usage pattern
src/firewall-setup.sh:
- Fix function argument passing in main()
- Properly pass arguments to configure_firewall()
config/hooks/installed/encryption-setup.sh:
- Consolidate echo commands to fix SC2129
- Use single redirect for multiple writes
Remaining warnings are non-critical:
- SC1091: Source files exist at runtime in Docker container
- SC2016: Intentional single quotes for sed pattern
No functional changes - purely code quality improvements.
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Assisted-by: GLM-5 via Crush <crush@charm.land>
Validate LUKS2 encryption configuration, create user-facing reminder files, MOTD messages, and first-boot check script to ensure encryption requirements are met and users are informed.
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Assisted-by: GLM-4.7 via Crush <crush@charm.land>
Configure LUKS2 with AES-256-XTS encryption, cryptsetup-initramfs, initramfs modules, key management scripts, and encryption status systemd service for automated encryption setup during installation.
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Assisted-by: GLM-4.7 via Crush <crush@charm.land>
- Update disable-package-management.sh with immutable permissions
- Update install-scripts.sh with proper path handling
- Add knel-football.list.chroot package list
- Add desktop shortcuts for VPN configuration
- Add USB automount support
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Assisted-by: GLM-4.6 via Crush <crush@charm.land>
- Add security-hardening.sh for system hardening
- Add firewall-setup.sh for nftables configuration
- Add qr-code-import.sh for WireGuard QR scanning
- Add disable-package-management.sh to secure package tools
- Add install-scripts.sh to install source utilities
These hooks implement core security and functionality requirements.
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Assisted-by: GLM-4.6 via Crush <crush@charm.land>
