diff options
| author | Michael Brown <mcb30@ipxe.org> | 2021-07-23 11:32:04 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2021-07-27 13:50:36 +0100 |
| commit | e09e1142a3bd8bdb702efc92994c419a53e9933b (patch) | |
| tree | 590fa32d0a9512493575ab56f91f68cd954b7a4c /src/interface | |
| parent | db6310c3e5948a327a1c6f5706f727fd6cd67c70 (diff) | |
| download | ipxe-e09e1142a3bd8bdb702efc92994c419a53e9933b.tar.gz | |
[efi] Record cached ProxyDHCPOFFER and PXEBSACK, if present
Commit cd3de55 ("[efi] Record cached DHCPACK from loaded image's
device handle, if present") added the ability for a chainloaded UEFI
iPXE to reuse an IPv4 address and DHCP options previously obtained by
a built-in PXE stack, without needing to perform a second DHCP
request.
Extend this to also record the cached ProxyDHCPOFFER and PXEBSACK
obtained from the EFI_PXE_BASE_CODE_PROTOCOL instance installed on the
loaded image's device handle, if present.
This allows a chainloaded UEFI iPXE to reuse a boot filename or other
options that were provided via a ProxyDHCP or PXE boot server
mechanism, rather than by standard DHCP.
Tested-by: Andreas Hammarskjöld <junior@2PintSoftware.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/interface')
| -rw-r--r-- | src/interface/efi/efi_cachedhcp.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/interface/efi/efi_cachedhcp.c b/src/interface/efi/efi_cachedhcp.c index 14b531d09..1d4b98fd6 100644 --- a/src/interface/efi/efi_cachedhcp.c +++ b/src/interface/efi/efi_cachedhcp.c @@ -75,17 +75,40 @@ int efi_cachedhcp_record ( EFI_HANDLE device ) { /* Record DHCPACK, if present */ if ( mode->DhcpAckReceived && - ( ( rc = cachedhcp_record ( virt_to_user ( &mode->DhcpAck ), + ( ( rc = cachedhcp_record ( &cached_dhcpack, + virt_to_user ( &mode->DhcpAck ), sizeof ( mode->DhcpAck ) ) ) != 0 ) ) { DBGC ( device, "EFI %s could not record DHCPACK: %s\n", efi_handle_name ( device ), strerror ( rc ) ); - goto err_record; + goto err_dhcpack; + } + + /* Record ProxyDHCPOFFER, if present */ + if ( mode->ProxyOfferReceived && + ( ( rc = cachedhcp_record ( &cached_proxydhcp, + virt_to_user ( &mode->ProxyOffer ), + sizeof ( mode->ProxyOffer ) ) ) != 0)){ + DBGC ( device, "EFI %s could not record ProxyDHCPOFFER: %s\n", + efi_handle_name ( device ), strerror ( rc ) ); + goto err_proxydhcp; + } + + /* Record PxeBSACK, if present */ + if ( mode->PxeReplyReceived && + ( ( rc = cachedhcp_record ( &cached_pxebs, + virt_to_user ( &mode->PxeReply ), + sizeof ( mode->PxeReply ) ) ) != 0)){ + DBGC ( device, "EFI %s could not record PXEBSACK: %s\n", + efi_handle_name ( device ), strerror ( rc ) ); + goto err_pxebs; } /* Success */ rc = 0; - err_record: + err_pxebs: + err_proxydhcp: + err_dhcpack: err_ipv6: bs->CloseProtocol ( device, &efi_pxe_base_code_protocol_guid, efi_image_handle, NULL ); |