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Michael Chang authored
The PXE Base Code protocol used to obtain cached PXE DHCPACK packet is no
longer provided for HTTP Boot. Instead, we have to get the HTTP boot
information from the device path nodes defined in following UEFI Specification
sections.

 9.3.5.12 IPv4 Device Path
 9.3.5.13 IPv6 Device Path
 9.3.5.23 Uniform Resource Identifiers (URI) Device Path

This patch basically does:

include/grub/efi/api.h:
Add new structure of Uniform Resource Identifiers (URI) Device Path

grub-core/net/drivers/efi/efinet.c:
Check if PXE Base Code is available, if not it will try to obtain the netboot
information from the device path where the image booted from. The DHCPACK
packet is recoverd from the information in device patch and feed into the same
DHCP packet processing functions to ensure the network interface is setting up
the same way it used to be.

Signed-off-by: default avatarMichael Chang <mchang@suse.com>
Signed-off-by: default avatarKen Lin <ken.lin@hpe.com>

Patch-Name: efinet-set-network-from-uefi-devpath.patch
3f85b646
History
This is GRUB 2, the second version of the GRand Unified Bootloader.
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See the file INSTALL for instructions on how to build and install the
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