diff options
| author | sfu5 <sfu5@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-09 05:28:27 +0000 |
|---|---|---|
| committer | sfu5 <sfu5@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-09 05:28:27 +0000 |
| commit | 30a95d4d39214084f435acbc1534cb111dda3095 (patch) | |
| tree | fbe1a361aede65eda192466d1892d4e5784c1eef /NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c | |
| parent | 4db921cee0961c9938b4eae68cd77e45f11addfc (diff) | |
| download | edk2-platforms-30a95d4d39214084f435acbc1534cb111dda3095.tar.xz | |
Skip PXE prompt/menu/discover if PXE_DISCOVERY_CONTROL tag bit 3 set.
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14332 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c')
| -rw-r--r-- | NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c b/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c index 540adee311..5bbefcee9d 100644 --- a/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c +++ b/NetworkPkg/UefiPxeBcDxe/PxeBcBoot.c @@ -98,6 +98,17 @@ PxeBcSelectBootPrompt ( ASSERT (!Mode->UsingIpv6);
VendorOpt = &Cache->Dhcp4.VendorOpt;
+ //
+ // According to the PXE specification 2.1, Table 2-1 PXE DHCP Options,
+ // we must not consider a boot prompt or boot menu if all of the following hold:
+ // - the PXE_DISCOVERY_CONTROL tag(6) is present inside the Vendor Options(43), and has bit 3 set
+ // - a boot file name has been presented in the initial DHCP or ProxyDHCP offer packet.
+ //
+ if (IS_DISABLE_PROMPT_MENU (VendorOpt->DiscoverCtrl) &&
+ Cache->Dhcp4.OptList[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {
+ return EFI_ABORTED;
+ }
+
if (!IS_VALID_BOOT_PROMPT (VendorOpt->BitMap)) {
return EFI_TIMEOUT;
}
|