diff options
| author | Fu Siyuan <siyuan.fu@intel.com> | 2016-11-16 13:37:15 +0800 |
|---|---|---|
| committer | Fu Siyuan <siyuan.fu@intel.com> | 2016-11-18 16:30:50 +0800 |
| commit | 632dcfd6857b6211ce3fe9755d3c11e74ef5d447 (patch) | |
| tree | 03c5766d7efa36d127b45d5c716561115ee62dd6 /NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c | |
| parent | 4f6b33b460226bc1a54d8af2c0f4fe195f2f04ce (diff) | |
| download | edk2-platforms-632dcfd6857b6211ce3fe9755d3c11e74ef5d447.tar.xz | |
NetworkPkg: Check for the max DHCP packet length before use it.
This patch updates the PXE and HTTP boot driver to drop the input DHCP packet
if it exceed the maximum length.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-By: Wu Jiaxin <jiaxin.wu@intel.com>
Diffstat (limited to 'NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c')
| -rw-r--r-- | NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c index 0552174ac6..e24c573e32 100644 --- a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c +++ b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c @@ -102,12 +102,12 @@ EfiPxeBcStart ( // PXE over IPv6 starts here, initialize the fields and list header.
//
Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;
- Private->ProxyOffer.Dhcp6.Packet.Offer.Size = PXEBC_DHCP6_PACKET_MAX_SIZE;
- Private->DhcpAck.Dhcp6.Packet.Ack.Size = PXEBC_DHCP6_PACKET_MAX_SIZE;
- Private->PxeReply.Dhcp6.Packet.Ack.Size = PXEBC_DHCP6_PACKET_MAX_SIZE;
+ Private->ProxyOffer.Dhcp6.Packet.Offer.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;
+ Private->DhcpAck.Dhcp6.Packet.Ack.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;
+ Private->PxeReply.Dhcp6.Packet.Ack.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;
for (Index = 0; Index < PXEBC_OFFER_MAX_NUM; Index++) {
- Private->OfferBuffer[Index].Dhcp6.Packet.Offer.Size = PXEBC_DHCP6_PACKET_MAX_SIZE;
+ Private->OfferBuffer[Index].Dhcp6.Packet.Offer.Size = PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE;
}
//
@@ -154,12 +154,12 @@ EfiPxeBcStart ( //
// PXE over IPv4 starts here, initialize the fields.
//
- Private->ProxyOffer.Dhcp4.Packet.Offer.Size = PXEBC_DHCP4_PACKET_MAX_SIZE;
- Private->DhcpAck.Dhcp4.Packet.Ack.Size = PXEBC_DHCP4_PACKET_MAX_SIZE;
- Private->PxeReply.Dhcp4.Packet.Ack.Size = PXEBC_DHCP4_PACKET_MAX_SIZE;
+ Private->ProxyOffer.Dhcp4.Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;
+ Private->DhcpAck.Dhcp4.Packet.Ack.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;
+ Private->PxeReply.Dhcp4.Packet.Ack.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;
for (Index = 0; Index < PXEBC_OFFER_MAX_NUM; Index++) {
- Private->OfferBuffer[Index].Dhcp4.Packet.Offer.Size = PXEBC_DHCP4_PACKET_MAX_SIZE;
+ Private->OfferBuffer[Index].Dhcp4.Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;
}
PxeBcSeedDhcp4Packet (&Private->SeedPacket, Private->Udp4Read);
|