[cachedhcp] Allow cached DHCPACK to apply to temporary network devices

Retain a reference to the cached DHCPACK until the late startup phase,
and allow it to be recycled for reuse.  This allows the cached DHCPACK
to be used for a temporary MNP network device and then subsequently
reused for the corresponding real network device.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
3 files changed
tree: c01091023d13a54e37f0a18b183e41bbf705e721
  1. .github/
  2. contrib/
  3. src/
  4. COPYING
  5. COPYING.GPLv2
  6. COPYING.UBDL
  7. README