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import edk2-20231122-6.el9_4.2
4 months ago
From d60257df151a6c58aefe74c2d2baee59344318d2 Mon Sep 17 00:00:00 2001
import edk2-20230524-4.el9_3.2
8 months ago
From: Jon Maloy <jmaloy@redhat.com>
Date: Fri, 16 Feb 2024 10:48:05 -0500
import edk2-20231122-6.el9_4.2
4 months ago
Subject: [PATCH 11/18] NetworkPkg: UefiPxeBcDxe: SECURITY PATCH CVE-2023-45234
import edk2-20230524-4.el9_3.2
8 months ago
Unit Tests
RH-Author: Jon Maloy <jmaloy@redhat.com>
import edk2-20231122-6.el9_4.2
4 months ago
RH-MergeRequest: 54: NetworkPkg: Dhcp6Dxe: SECURITY PATCH CVE-2023-45230 Patch
RH-Jira: RHEL-21841 RHEL-21843 RHEL-21845 RHEL-21847 RHEL-21849 RHEL-21851 RHEL-21853
import edk2-20230524-4.el9_3.2
8 months ago
RH-Acked-by: Gerd Hoffmann <None>
import edk2-20231122-6.el9_4.2
4 months ago
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Commit: [11/18] b917383d597172d4bf75548d9b281d08bf34e299
import edk2-20230524-4.el9_3.2
8 months ago
import edk2-20231122-6.el9_4.2
4 months ago
JIRA: https://issues.redhat.com/browse/RHEL-21851
import edk2-20230524-4.el9_3.2
8 months ago
CVE: CVE-2022-45234
Upstream: Merged
commit 458c582685fc0e8057d2511c5a0394078d988c17
Author: Doug Flick <dougflick@microsoft.com>
Date: Fri Jan 26 05:54:53 2024 +0800
NetworkPkg: UefiPxeBcDxe: SECURITY PATCH CVE-2023-45234 Unit Tests
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=4539
Unit tests to that the bug..
Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise
message
..has been patched
This contains tests for the following functions:
PxeBcHandleDhcp6Offer
PxeBcCacheDnsServerAddresses
Cc: Saloni Kasbekar <saloni.kasbekar@intel.com>
Cc: Zachary Clark-williams <zachary.clark-williams@intel.com>
Signed-off-by: Doug Flick [MSFT] <doug.edk2@gmail.com>
Reviewed-by: Saloni Kasbekar <saloni.kasbekar@intel.com>
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
---
import edk2-20231122-6.el9_4.2
4 months ago
NetworkPkg/Test/NetworkPkgHostTest.dsc | 1 +
import edk2-20230524-4.el9_3.2
8 months ago
.../GoogleTest/PxeBcDhcp6GoogleTest.cpp | 300 ++++++++++++++++++
.../GoogleTest/PxeBcDhcp6GoogleTest.h | 50 +++
.../GoogleTest/UefiPxeBcDxeGoogleTest.cpp | 19 ++
.../GoogleTest/UefiPxeBcDxeGoogleTest.inf | 48 +++
import edk2-20231122-6.el9_4.2
4 months ago
5 files changed, 418 insertions(+)
import edk2-20230524-4.el9_3.2
8 months ago
create mode 100644 NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.cpp
create mode 100644 NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.h
create mode 100644 NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.cpp
create mode 100644 NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.inf
diff --git a/NetworkPkg/Test/NetworkPkgHostTest.dsc b/NetworkPkg/Test/NetworkPkgHostTest.dsc
import edk2-20231122-6.el9_4.2
4 months ago
index 7fa7b0f9d5..a0273c4310 100644
import edk2-20230524-4.el9_3.2
8 months ago
--- a/NetworkPkg/Test/NetworkPkgHostTest.dsc
+++ b/NetworkPkg/Test/NetworkPkgHostTest.dsc
import edk2-20231122-6.el9_4.2
4 months ago
@@ -27,6 +27,7 @@
import edk2-20230524-4.el9_3.2
8 months ago
#
NetworkPkg/Dhcp6Dxe/GoogleTest/Dhcp6DxeGoogleTest.inf
import edk2-20231122-6.el9_4.2
4 months ago
NetworkPkg/Ip6Dxe/GoogleTest/Ip6DxeGoogleTest.inf
import edk2-20230524-4.el9_3.2
8 months ago
+ NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.inf
# Despite these library classes being listed in [LibraryClasses] below, they are not needed for the host-based unit tests.
[LibraryClasses]
diff --git a/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.cpp b/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.cpp
new file mode 100644
index 0000000000..8260eeee50
--- /dev/null
+++ b/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.cpp
@@ -0,0 +1,300 @@
+/** @file
+ Host based unit test for PxeBcDhcp6.c.
+
+ Copyright (c) Microsoft Corporation
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+#include <gtest/gtest.h>
+
+extern "C" {
+ #include <Uefi.h>
+ #include <Library/BaseLib.h>
+ #include <Library/DebugLib.h>
+ #include "../PxeBcImpl.h"
+ #include "../PxeBcDhcp6.h"
+ #include "PxeBcDhcp6GoogleTest.h"
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Definitions
+///////////////////////////////////////////////////////////////////////////////
+
+#define PACKET_SIZE (1500)
+
+typedef struct {
+ UINT16 OptionCode; // The option code for DHCP6_OPT_SERVER_ID (e.g., 0x03)
+ UINT16 OptionLen; // The length of the option (e.g., 16 bytes)
+ UINT8 ServerId[16]; // The 16-byte DHCPv6 Server Identifier
+} DHCP6_OPTION_SERVER_ID;
+
+///////////////////////////////////////////////////////////////////////////////
+/// Symbol Definitions
+///////////////////////////////////////////////////////////////////////////////
+
+EFI_STATUS
+MockUdpWrite (
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN UINT16 OpFlags,
+ IN EFI_IP_ADDRESS *DestIp,
+ IN EFI_PXE_BASE_CODE_UDP_PORT *DestPort,
+ IN EFI_IP_ADDRESS *GatewayIp OPTIONAL,
+ IN EFI_IP_ADDRESS *SrcIp OPTIONAL,
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,
+ IN UINTN *HeaderSize OPTIONAL,
+ IN VOID *HeaderPtr OPTIONAL,
+ IN UINTN *BufferSize,
+ IN VOID *BufferPtr
+ )
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+MockUdpRead (
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN UINT16 OpFlags,
+ IN OUT EFI_IP_ADDRESS *DestIp OPTIONAL,
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPort OPTIONAL,
+ IN OUT EFI_IP_ADDRESS *SrcIp OPTIONAL,
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,
+ IN UINTN *HeaderSize OPTIONAL,
+ IN VOID *HeaderPtr OPTIONAL,
+ IN OUT UINTN *BufferSize,
+ IN VOID *BufferPtr
+ )
+{
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+MockConfigure (
+ IN EFI_UDP6_PROTOCOL *This,
+ IN EFI_UDP6_CONFIG_DATA *UdpConfigData OPTIONAL
+ )
+{
+ return EFI_SUCCESS;
+}
+
+// Needed by PxeBcSupport
+EFI_STATUS
+EFIAPI
+QueueDpc (
+ IN EFI_TPL DpcTpl,
+ IN EFI_DPC_PROCEDURE DpcProcedure,
+ IN VOID *DpcContext OPTIONAL
+ )
+{
+ return EFI_SUCCESS;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// PxeBcHandleDhcp6OfferTest Tests
+///////////////////////////////////////////////////////////////////////////////
+
+class PxeBcHandleDhcp6OfferTest : public ::testing::Test {
+public:
+ PXEBC_PRIVATE_DATA Private = { 0 };
+ EFI_UDP6_PROTOCOL Udp6Read;
+ EFI_PXE_BASE_CODE_MODE Mode = { 0 };
+
+protected:
+ // Add any setup code if needed
+ virtual void
+ SetUp (
+ )
+ {
+ Private.Dhcp6Request = (EFI_DHCP6_PACKET *)AllocateZeroPool (PACKET_SIZE);
+
+ // Need to setup the EFI_PXE_BASE_CODE_PROTOCOL
+ // The function under test really only needs the following:
+ // UdpWrite
+ // UdpRead
+
+ Private.PxeBc.UdpWrite = (EFI_PXE_BASE_CODE_UDP_WRITE)MockUdpWrite;
+ Private.PxeBc.UdpRead = (EFI_PXE_BASE_CODE_UDP_READ)MockUdpRead;
+
+ // Need to setup EFI_UDP6_PROTOCOL
+ // The function under test really only needs the following:
+ // Configure
+
+ Udp6Read.Configure = (EFI_UDP6_CONFIGURE)MockConfigure;
+ Private.Udp6Read = &Udp6Read;
+
+ // Need to setup the EFI_PXE_BASE_CODE_MODE
+ Private.PxeBc.Mode = &Mode;
+
+ // for this test it doesn't really matter what the Dhcpv6 ack is set to
+ }
+
+ // Add any cleanup code if needed
+ virtual void
+ TearDown (
+ )
+ {
+ if (Private.Dhcp6Request != NULL) {
+ FreePool (Private.Dhcp6Request);
+ }
+
+ // Clean up any resources or variables
+ }
+};
+
+// Note:
+// Testing PxeBcHandleDhcp6Offer() is difficult because it depends on a
+// properly setup Private structure. Attempting to properly test this function
+// without a signficant refactor is a fools errand. Instead, we will test
+// that we can prevent an overflow in the function.
+TEST_F (PxeBcHandleDhcp6OfferTest, BasicUsageTest) {
+ PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
+ EFI_DHCP6_PACKET_OPTION Option = { 0 };
+
+ Private.SelectIndex = 1; // SelectIndex is 1-based
+ Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
+
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
+ // Setup the DHCPv6 offer packet
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (1337);
+
+ ASSERT_EQ (PxeBcHandleDhcp6Offer (&(PxeBcHandleDhcp6OfferTest::Private)), EFI_DEVICE_ERROR);
+}
+
+class PxeBcCacheDnsServerAddressesTest : public ::testing::Test {
+public:
+ PXEBC_PRIVATE_DATA Private = { 0 };
+
+protected:
+ // Add any setup code if needed
+ virtual void
+ SetUp (
+ )
+ {
+ }
+
+ // Add any cleanup code if needed
+ virtual void
+ TearDown (
+ )
+ {
+ }
+};
+
+// Test Description
+// Test that we cache the DNS server address from the DHCPv6 offer packet
+TEST_F (PxeBcCacheDnsServerAddressesTest, BasicUsageTest) {
+ UINT8 SearchPattern[16] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF };
+ EFI_DHCP6_PACKET_OPTION *Option;
+ PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
+
+ Option = (EFI_DHCP6_PACKET_OPTION *)AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + sizeof (SearchPattern));
+ ASSERT_NE (Option, nullptr);
+
+ Option->OpCode = DHCP6_OPT_SERVER_ID;
+ Option->OpLen = NTOHS (sizeof (SearchPattern));
+ CopyMem (Option->Data, SearchPattern, sizeof (SearchPattern));
+
+ Private.SelectIndex = 1; // SelectIndex is 1-based
+ Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;
+
+ Private.DnsServer = nullptr;
+
+ ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_SUCCESS);
+ ASSERT_NE (Private.DnsServer, nullptr);
+ ASSERT_EQ (CompareMem (Private.DnsServer, SearchPattern, sizeof (SearchPattern)), 0);
+
+ if (Private.DnsServer) {
+ FreePool (Private.DnsServer);
+ }
+
+ if (Option) {
+ FreePool (Option);
+ }
+}
+// Test Description
+// Test that we can prevent an overflow in the function
+TEST_F (PxeBcCacheDnsServerAddressesTest, AttemptOverflowTest) {
+ EFI_DHCP6_PACKET_OPTION Option = { 0 };
+ PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
+
+ Private.SelectIndex = 1; // SelectIndex is 1-based
+ Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
+ // Setup the DHCPv6 offer packet
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (1337);
+
+ Private.DnsServer = NULL;
+
+ ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_DEVICE_ERROR);
+ ASSERT_EQ (Private.DnsServer, nullptr);
+
+ if (Private.DnsServer) {
+ FreePool (Private.DnsServer);
+ }
+}
+
+// Test Description
+// Test that we can prevent an underflow in the function
+TEST_F (PxeBcCacheDnsServerAddressesTest, AttemptUnderflowTest) {
+ EFI_DHCP6_PACKET_OPTION Option = { 0 };
+ PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
+
+ Private.SelectIndex = 1; // SelectIndex is 1-based
+ Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
+ // Setup the DHCPv6 offer packet
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (2);
+
+ Private.DnsServer = NULL;
+
+ ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_DEVICE_ERROR);
+ ASSERT_EQ (Private.DnsServer, nullptr);
+
+ if (Private.DnsServer) {
+ FreePool (Private.DnsServer);
+ }
+}
+
+// Test Description
+// Test that we can handle recursive dns (multiple dns entries)
+TEST_F (PxeBcCacheDnsServerAddressesTest, MultipleDnsEntries) {
+ EFI_DHCP6_PACKET_OPTION Option = { 0 };
+ PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
+
+ Private.SelectIndex = 1; // SelectIndex is 1-based
+ Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
+ // Setup the DHCPv6 offer packet
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
+
+ EFI_IPv6_ADDRESS addresses[2] = {
+ // 2001:db8:85a3::8a2e:370:7334
+ { 0x20, 0x01, 0x0d, 0xb8, 0x85, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x8a, 0x2e, 0x03, 0x70, 0x73, 0x34 },
+ // fe80::d478:91c3:ecd7:4ff9
+ { 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd4, 0x78, 0x91, 0xc3, 0xec, 0xd7, 0x4f, 0xf9 }
+ };
+
+ CopyMem (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, &addresses, sizeof (addresses));
+
+ Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (sizeof (addresses));
+
+ Private.DnsServer = NULL;
+
+ ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_SUCCESS);
+
+ ASSERT_NE (Private.DnsServer, nullptr);
+
+ //
+ // This is expected to fail until DnsServer supports multiple DNS servers
+ //
+ // This is tracked in https://bugzilla.tianocore.org/show_bug.cgi?id=1886
+ //
+ // Disabling:
+ // ASSERT_EQ (CompareMem(Private.DnsServer, &addresses, sizeof(addresses)), 0);
+
+ if (Private.DnsServer) {
+ FreePool (Private.DnsServer);
+ }
+}
diff --git a/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.h b/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.h
new file mode 100644
index 0000000000..b17c314791
--- /dev/null
+++ b/NetworkPkg/UefiPxeBcDxe/GoogleTest/PxeBcDhcp6GoogleTest.h
@@ -0,0 +1,50 @@
+/** @file
+ This file exposes the internal interfaces which may be unit tested
+ for the PxeBcDhcp6Dxe driver.
+
+ Copyright (c) Microsoft Corporation.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef PXE_BC_DHCP6_GOOGLE_TEST_H_
+#define PXE_BC_DHCP6_GOOGLE_TEST_H_
+
+//
+// Minimal includes needed to compile
+//
+#include <Uefi.h>
+#include "../PxeBcImpl.h"
+
+/**
+ Handle the DHCPv6 offer packet.
+
+ @param[in] Private The pointer to PXEBC_PRIVATE_DATA.
+
+ @retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.
+ @retval EFI_NO_RESPONSE No response to the following request packet.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
+ @retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.
+
+**/
+EFI_STATUS
+PxeBcHandleDhcp6Offer (
+ IN PXEBC_PRIVATE_DATA *Private
+ );
+
+/**
+ Cache the DHCPv6 Server address
+
+ @param[in] Private The pointer to PXEBC_PRIVATE_DATA.
+ @param[in] Cache6 The pointer to PXEBC_DHCP6_PACKET_CACHE.
+
+ @retval EFI_SUCCESS Cache the DHCPv6 Server address successfully.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
+ @retval EFI_DEVICE_ERROR Failed to cache the DHCPv6 Server address.
+**/
+EFI_STATUS
+PxeBcCacheDnsServerAddresses (
+ IN PXEBC_PRIVATE_DATA *Private,
+ IN PXEBC_DHCP6_PACKET_CACHE *Cache6
+ );
+
+#endif // PXE_BC_DHCP6_GOOGLE_TEST_H_
diff --git a/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.cpp b/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.cpp
new file mode 100644
index 0000000000..cc4fdf525b
--- /dev/null
+++ b/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.cpp
@@ -0,0 +1,19 @@
+/** @file
+ Acts as the main entry point for the tests for the UefiPxeBcDxe module.
+ Copyright (c) Microsoft Corporation
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+#include <gtest/gtest.h>
+
+////////////////////////////////////////////////////////////////////////////////
+// Run the tests
+////////////////////////////////////////////////////////////////////////////////
+int
+main (
+ int argc,
+ char *argv[]
+ )
+{
+ testing::InitGoogleTest (&argc, argv);
+ return RUN_ALL_TESTS ();
+}
diff --git a/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.inf b/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.inf
new file mode 100644
index 0000000000..301dcdf611
--- /dev/null
+++ b/NetworkPkg/UefiPxeBcDxe/GoogleTest/UefiPxeBcDxeGoogleTest.inf
@@ -0,0 +1,48 @@
+## @file
+# Unit test suite for the UefiPxeBcDxe using Google Test
+#
+# Copyright (c) Microsoft Corporation.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+[Defines]
+INF_VERSION = 0x00010005
+BASE_NAME = UefiPxeBcDxeGoogleTest
+FILE_GUID = 77D45C64-EC1E-4174-887B-886E89FD1EDF
+MODULE_TYPE = HOST_APPLICATION
+VERSION_STRING = 1.0
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ UefiPxeBcDxeGoogleTest.cpp
+ PxeBcDhcp6GoogleTest.cpp
+ PxeBcDhcp6GoogleTest.h
+ ../PxeBcDhcp6.c
+ ../PxeBcSupport.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UnitTestFrameworkPkg/UnitTestFrameworkPkg.dec
+ NetworkPkg/NetworkPkg.dec
+
+[LibraryClasses]
+ GoogleTestLib
+ DebugLib
+ NetLib
+ PcdLib
+
+[Protocols]
+ gEfiDhcp6ServiceBindingProtocolGuid
+ gEfiDns6ServiceBindingProtocolGuid
+ gEfiDns6ProtocolGuid
+
+[Pcd]
+ gEfiNetworkPkgTokenSpaceGuid.PcdDhcp6UidType
+
+[Guids]
+ gZeroGuid
--
2.39.3