diff options
Diffstat (limited to 'NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c')
| -rw-r--r-- | NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c index 7fd1281c11..bcabbd2219 100644 --- a/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c +++ b/NetworkPkg/UefiPxeBcDxe/PxeBcDhcp6.c @@ -2180,7 +2180,7 @@ PxeBcDhcp6Discover ( UINTN ReadSize;
UINT16 OpCode;
UINT16 OpLen;
- UINT32 Xid;
+ UINT32 Random;
EFI_STATUS Status;
UINTN DiscoverLenNeeded;
@@ -2198,6 +2198,12 @@ PxeBcDhcp6Discover ( return EFI_DEVICE_ERROR;
}
+ Status = PseudoRandomU32 (&Random);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a failed to generate random number: %r\n", __func__, Status));
+ return Status;
+ }
+
DiscoverLenNeeded = sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET);
Discover = AllocateZeroPool (DiscoverLenNeeded);
if (Discover == NULL) {
@@ -2207,8 +2213,7 @@ PxeBcDhcp6Discover ( //
// Build the discover packet by the cached request packet before.
//
- Xid = NET_RANDOM (NetRandomInitSeed ());
- Discover->TransactionId = HTONL (Xid);
+ Discover->TransactionId = HTONL (Random);
Discover->MessageType = Request->Dhcp6.Header.MessageType;
RequestOpt = Request->Dhcp6.Option;
DiscoverOpt = Discover->DhcpOptions;
|