- Copy the whole webapp/ tree (minus __pycache__) in build-usb.sh and
build-proxmox-iso.sh, so config, services/, views/ and
blancco_evidence_monthly.py reach the server.
- sfdisk --append failure now aborts; the CIDATA partition is the one
starting exactly at the computed sector, and nothing that starts
before it is ever formatted (the old fallback hit the ISO's EFI
partition).
- Volume id and El Torito load sizes come from the ISO
(xorriso -report_el_torito as_mkisofs); grub.cfg must contain
autoinstall after patching.
- --image FILE SIZE|auto builds the same layout in a file without root
(mkfs.vfat -C + mtools, sfdisk on the file). Plus --payload-root,
--skip-enrollment/-bios/-drivers/-boot-tools, --yes.
- tests/vm: libvirt harness (pxetest-server, pxetest-client, isolated
pxetest-imaging network) with fetch-iso/build-image/create/start/
status/stop/destroy.
pxe-nic-check classifies each NIC from what it hears: LLDP/CDP/802.1X
from managed switches, foreign DHCP offers and their domain (one
DHCPDISCOVER on the imaging NIC; the GE NIC's networkd lease is read
instead), STP and ARP hosts for information. A kernel BPF filter keeps
bulk SMB traffic out of the capture loop; bridge ports are listened on
too, since LLDP and EAPOL stop at the port.
- dnsmasq drop-in runs --guard as ExecStartPre: exit 1 on a ge or
foreign-dhcp imaging verdict, fail open (loudly) on bugs or no link
- pxe-nic-check.timer runs --watch every 5 min: stops dnsmasq on a bad
imaging verdict, never starts it
- /run/pxe-nic-status.json (0644, atomic) for the webapp
- playbook installs it all and writes /etc/pxe-server/nic.conf from
pxe_imaging_mac, pxe_ge_mac, pxe_corp_domain_suffixes,
pxe_nic_allowed_switches
- unit tests plus a no-root network-namespace lab (veth pairs, a raw
socket DHCP/LLDP peer and real dnsmasq); docs/pxe-nic-guard.md has the
operator notes and the two floor tests
