diff options
Diffstat (limited to 'NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c')
| -rw-r--r-- | NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c b/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c index 5bbefcee9..84031e40e 100644 --- a/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c +++ b/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c @@ -1,7 +1,7 @@ /** @file
Boot functions implementation for UefiPxeBc Driver.
- Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -468,7 +468,9 @@ PxeBcDhcp4BootInfo ( EFI_STATUS Status;
PXEBC_DHCP4_PACKET_CACHE *Cache4;
UINT16 Value;
-
+ PXEBC_VENDOR_OPTION *VendorOpt;
+ PXEBC_BOOT_SVR_ENTRY *Entry;
+
PxeBc = &Private->PxeBc;
Mode = PxeBc->Mode;
Status = EFI_SUCCESS;
@@ -485,17 +487,40 @@ PxeBcDhcp4BootInfo ( Cache4 = &Private->DhcpAck.Dhcp4;
}
+ ASSERT (Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);
+
//
- // Parse the boot server Ipv4 address by next server address.
- // If this field isn't available, use option 54 instead.
+ // Parse the boot server address.
+ // If prompt/discover is disabled, get the first boot server from the boot servers list.
+ // Otherwise, parse the boot server Ipv4 address from next server address field in DHCP header.
+ // If all these fields are not available, use option 54 instead.
//
- CopyMem (
- &Private->ServerIp,
- &Cache4->Packet.Offer.Dhcp4.Header.ServerAddr,
- sizeof (EFI_IPv4_ADDRESS)
- );
-
+ VendorOpt = &Cache4->VendorOpt;
+ if (IS_DISABLE_PROMPT_MENU (VendorOpt->DiscoverCtrl) && IS_VALID_BOOT_SERVERS (VendorOpt->BitMap)) {
+ Entry = VendorOpt->BootSvr;
+ if (VendorOpt->BootSvrLen >= sizeof (PXEBC_BOOT_SVR_ENTRY) && Entry->IpCnt > 0) {
+ CopyMem (
+ &Private->ServerIp,
+ &Entry->IpAddr[0],
+ sizeof (EFI_IPv4_ADDRESS)
+ );
+ }
+ }
+ if (Private->ServerIp.Addr[0] == 0) {
+ //
+ // ServerIp.Addr[0] equals zero means we failed to get IP address from boot server list.
+ // Try to use next server address field.
+ //
+ CopyMem (
+ &Private->ServerIp,
+ &Cache4->Packet.Offer.Dhcp4.Header.ServerAddr,
+ sizeof (EFI_IPv4_ADDRESS)
+ );
+ }
if (Private->ServerIp.Addr[0] == 0) {
+ //
+ // Still failed , use the IP address from option 54.
+ //
CopyMem (
&Private->ServerIp,
Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,
@@ -506,7 +531,6 @@ PxeBcDhcp4BootInfo ( //
// Parse the boot file name by option.
//
- ASSERT (Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);
Private->BootFileName = Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data;
if (Cache4->OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN] != NULL) {
|