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add security check.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8680 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2009-06-29 09:19:25 +00:00
parent f2a064736d
commit 894d038a8d
22 changed files with 90 additions and 40 deletions
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13
MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
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@@ -1432,6 +1432,8 @@ CheckIpByFilter (
return TRUE;
}
ASSERT (PxeBcMode->IpFilter.IpCnt < EFI_PXE_BASE_CODE_MAX_IPCNT);
for (Index = 0; Index < PxeBcMode->IpFilter.IpCnt; Index++) {
CopyMem (
&Ip4Address,
@@ -1755,20 +1757,20 @@ EfiPxeBcSetIpFilter (
BOOLEAN PromiscuousNeed;
if (This == NULL) {
DEBUG ((EFI_D_ERROR, "BC *This pointer == NULL.\n"));
DEBUG ((EFI_D_ERROR, "This == NULL.\n"));
return EFI_INVALID_PARAMETER;
}
Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
Mode = Private->PxeBc.Mode;
if (Private == NULL) {
DEBUG ((EFI_D_ERROR, "PXEBC_PRIVATE_DATA poiner == NULL.\n"));
if (NewFilter == NULL) {
DEBUG ((EFI_D_ERROR, "NewFilter == NULL.\n"));
return EFI_INVALID_PARAMETER;
}
if (NewFilter == NULL) {
DEBUG ((EFI_D_ERROR, "IP Filter *NewFilter == NULL.\n"));
if (NewFilter->IpCnt > EFI_PXE_BASE_CODE_MAX_IPCNT) {
DEBUG ((EFI_D_ERROR, "NewFilter->IpCnt > %d.\n", EFI_PXE_BASE_CODE_MAX_IPCNT));
return EFI_INVALID_PARAMETER;
}
@@ -1778,6 +1780,7 @@ EfiPxeBcSetIpFilter (
}
PromiscuousNeed = FALSE;
for (Index = 0; Index < NewFilter->IpCnt; ++Index) {
if (IP4_IS_LOCAL_BROADCAST (EFI_IP4 (NewFilter->IpList[Index].v4))) {
//