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Enable Undi driver to support multicast MAC address mapped from IPv6 address 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9561 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
tye 2009-12-14 08:14:08 +00:00
parent c9ec70470d
commit cd41792556
1 changed files with 28 additions and 2 deletions
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30
OptionRomPkg/UndiRuntimeDxe/Decode.c
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@ -1,7 +1,7 @@
/** @file
Provides the basic UNID functions.
Copyright (c) 2006 - 2007, Intel Corporation
Copyright (c) 2006 - 2009, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -557,6 +557,8 @@ UNDI_RecFilter (
UINT16 copy_len;
UINT8 *ptr1;
UINT8 *ptr2;
BOOLEAN InvalidMacAddr;
OpFlags = CdbPtr->OpFlags;
NewFilter = (UINT16) (OpFlags & 0x1F);
@ -609,8 +611,32 @@ UNDI_RecFilter (
MacAddr = (UINT8 *) ((UINTN) (CdbPtr->CPBaddr));
MacCount = CdbPtr->CPBsize / sizeof (PXE_MAC_ADDR);
//
// The format of Ethernet multicast address for IPv6 is defined in RFC2464,
// for IPv4 is defined in RFC1112. Check whether the address is valid.
//
InvalidMacAddr = FALSE;
for (; MacCount-- != 0; MacAddr += sizeof (PXE_MAC_ADDR)) {
if (MacAddr[0] != 0x01 || MacAddr[1] != 0x00 || MacAddr[2] != 0x5E || (MacAddr[3] & 0x80) != 0) {
if (MacAddr[0] == 0x01) {
//
// This multicast MAC address is mapped from IPv4 address.
//
if (MacAddr[1] != 0x00 || MacAddr[2] != 0x5E || (MacAddr[3] & 0x80) != 0) {
InvalidMacAddr = TRUE;
}
} else if (MacAddr[0] == 0x33) {
//
// This multicast MAC address is mapped from IPv6 address.
//
if (MacAddr[1] != 0x33) {
InvalidMacAddr = TRUE;
}
} else {
InvalidMacAddr = TRUE;
}
if (InvalidMacAddr) {
CdbPtr->StatFlags = PXE_STATFLAGS_COMMAND_FAILED;
CdbPtr->StatCode = PXE_STATCODE_INVALID_CPB;
return ;