mirror of https://github.com/acidanthera/audk.git
575 lines
18 KiB
C++
575 lines
18 KiB
C++
/** @file
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Host based unit test for PxeBcDhcp6.c.
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Copyright (c) Microsoft Corporation
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Library/GoogleTestLib.h>
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#include <GoogleTest/Library/MockUefiLib.h>
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#include <GoogleTest/Library/MockUefiRuntimeServicesTableLib.h>
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extern "C" {
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#include <Uefi.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include "../PxeBcImpl.h"
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#include "../PxeBcDhcp6.h"
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#include "PxeBcDhcp6GoogleTest.h"
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}
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///////////////////////////////////////////////////////////////////////////////
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// Definitions
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///////////////////////////////////////////////////////////////////////////////
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#define PACKET_SIZE (1500)
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#define REQUEST_OPTION_LENGTH (120)
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typedef struct {
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UINT16 OptionCode; // The option code for DHCP6_OPT_SERVER_ID (e.g., 0x03)
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UINT16 OptionLen; // The length of the option (e.g., 16 bytes)
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UINT8 ServerId[16]; // The 16-byte DHCPv6 Server Identifier
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} DHCP6_OPTION_SERVER_ID;
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///////////////////////////////////////////////////////////////////////////////
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/// Symbol Definitions
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///////////////////////////////////////////////////////////////////////////////
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EFI_STATUS
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MockUdpWrite (
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IN EFI_PXE_BASE_CODE_PROTOCOL *This,
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IN UINT16 OpFlags,
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IN EFI_IP_ADDRESS *DestIp,
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IN EFI_PXE_BASE_CODE_UDP_PORT *DestPort,
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IN EFI_IP_ADDRESS *GatewayIp OPTIONAL,
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IN EFI_IP_ADDRESS *SrcIp OPTIONAL,
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IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,
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IN UINTN *HeaderSize OPTIONAL,
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IN VOID *HeaderPtr OPTIONAL,
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IN UINTN *BufferSize,
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IN VOID *BufferPtr
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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MockUdpRead (
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IN EFI_PXE_BASE_CODE_PROTOCOL *This,
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IN UINT16 OpFlags,
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IN OUT EFI_IP_ADDRESS *DestIp OPTIONAL,
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IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPort OPTIONAL,
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IN OUT EFI_IP_ADDRESS *SrcIp OPTIONAL,
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IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort OPTIONAL,
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IN UINTN *HeaderSize OPTIONAL,
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IN VOID *HeaderPtr OPTIONAL,
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IN OUT UINTN *BufferSize,
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IN VOID *BufferPtr
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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MockConfigure (
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IN EFI_UDP6_PROTOCOL *This,
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IN EFI_UDP6_CONFIG_DATA *UdpConfigData OPTIONAL
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)
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{
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return EFI_SUCCESS;
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}
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// Needed by PxeBcSupport
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EFI_STATUS
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PxeBcDns6 (
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IN PXEBC_PRIVATE_DATA *Private,
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IN CHAR16 *HostName,
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OUT EFI_IPv6_ADDRESS *IpAddress
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)
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{
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return EFI_SUCCESS;
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}
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UINT32
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PxeBcBuildDhcp6Options (
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IN PXEBC_PRIVATE_DATA *Private,
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OUT EFI_DHCP6_PACKET_OPTION **OptList,
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IN UINT8 *Buffer
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)
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{
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return EFI_SUCCESS;
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}
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EFI_STATUS
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EFIAPI
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QueueDpc (
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IN EFI_TPL DpcTpl,
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IN EFI_DPC_PROCEDURE DpcProcedure,
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IN VOID *DpcContext OPTIONAL
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)
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{
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return EFI_SUCCESS;
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}
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///////////////////////////////////////////////////////////////////////////////
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// PxeBcHandleDhcp6OfferTest Tests
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///////////////////////////////////////////////////////////////////////////////
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class PxeBcHandleDhcp6OfferTest : public ::testing::Test {
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public:
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PXEBC_PRIVATE_DATA Private = { 0 };
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EFI_UDP6_PROTOCOL Udp6Read;
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EFI_PXE_BASE_CODE_MODE Mode = { 0 };
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protected:
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// Add any setup code if needed
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virtual void
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SetUp (
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)
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{
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Private.Dhcp6Request = (EFI_DHCP6_PACKET *)AllocateZeroPool (PACKET_SIZE);
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// Need to setup the EFI_PXE_BASE_CODE_PROTOCOL
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// The function under test really only needs the following:
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// UdpWrite
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// UdpRead
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Private.PxeBc.UdpWrite = (EFI_PXE_BASE_CODE_UDP_WRITE)MockUdpWrite;
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Private.PxeBc.UdpRead = (EFI_PXE_BASE_CODE_UDP_READ)MockUdpRead;
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// Need to setup EFI_UDP6_PROTOCOL
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// The function under test really only needs the following:
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// Configure
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Udp6Read.Configure = (EFI_UDP6_CONFIGURE)MockConfigure;
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Private.Udp6Read = &Udp6Read;
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// Need to setup the EFI_PXE_BASE_CODE_MODE
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Private.PxeBc.Mode = &Mode;
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// for this test it doesn't really matter what the Dhcpv6 ack is set to
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}
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// Add any cleanup code if needed
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virtual void
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TearDown (
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)
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{
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if (Private.Dhcp6Request != NULL) {
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FreePool (Private.Dhcp6Request);
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}
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// Clean up any resources or variables
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}
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};
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// Note:
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// Testing PxeBcHandleDhcp6Offer() is difficult because it depends on a
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// properly setup Private structure. Attempting to properly test this function
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// without a signficant refactor is a fools errand. Instead, we will test
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// that we can prevent an overflow in the function.
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TEST_F (PxeBcHandleDhcp6OfferTest, BasicUsageTest) {
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PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
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EFI_DHCP6_PACKET_OPTION Option = { 0 };
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Private.SelectIndex = 1; // SelectIndex is 1-based
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Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
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// Setup the DHCPv6 offer packet
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (1337);
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ASSERT_EQ (PxeBcHandleDhcp6Offer (&(PxeBcHandleDhcp6OfferTest::Private)), EFI_DEVICE_ERROR);
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}
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///////////////////////////////////////////////////////////////////////////////
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// PxeBcCacheDnsServerAddresses Tests
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///////////////////////////////////////////////////////////////////////////////
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class PxeBcCacheDnsServerAddressesTest : public ::testing::Test {
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public:
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PXEBC_PRIVATE_DATA Private = { 0 };
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protected:
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// Add any setup code if needed
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virtual void
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SetUp (
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)
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{
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}
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// Add any cleanup code if needed
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virtual void
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TearDown (
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)
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{
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}
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};
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// Test Description
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// Test that we cache the DNS server address from the DHCPv6 offer packet
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TEST_F (PxeBcCacheDnsServerAddressesTest, BasicUsageTest) {
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UINT8 SearchPattern[16] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF, 0xDE, 0xAD, 0xBE, 0xEF };
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EFI_DHCP6_PACKET_OPTION *Option;
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PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
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Option = (EFI_DHCP6_PACKET_OPTION *)AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + sizeof (SearchPattern));
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ASSERT_NE (Option, nullptr);
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Option->OpCode = DHCP6_OPT_SERVER_ID;
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Option->OpLen = NTOHS (sizeof (SearchPattern));
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CopyMem (Option->Data, SearchPattern, sizeof (SearchPattern));
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Private.SelectIndex = 1; // SelectIndex is 1-based
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Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = Option;
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Private.DnsServer = nullptr;
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ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_SUCCESS);
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ASSERT_NE (Private.DnsServer, nullptr);
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ASSERT_EQ (CompareMem (Private.DnsServer, SearchPattern, sizeof (SearchPattern)), 0);
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if (Private.DnsServer) {
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FreePool (Private.DnsServer);
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}
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if (Option) {
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FreePool (Option);
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}
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}
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// Test Description
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// Test that we can prevent an overflow in the function
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TEST_F (PxeBcCacheDnsServerAddressesTest, AttemptOverflowTest) {
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EFI_DHCP6_PACKET_OPTION Option = { 0 };
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PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
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Private.SelectIndex = 1; // SelectIndex is 1-based
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Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
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// Setup the DHCPv6 offer packet
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (1337);
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Private.DnsServer = NULL;
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ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_DEVICE_ERROR);
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ASSERT_EQ (Private.DnsServer, nullptr);
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if (Private.DnsServer) {
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FreePool (Private.DnsServer);
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}
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}
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// Test Description
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// Test that we can prevent an underflow in the function
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TEST_F (PxeBcCacheDnsServerAddressesTest, AttemptUnderflowTest) {
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EFI_DHCP6_PACKET_OPTION Option = { 0 };
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PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
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Private.SelectIndex = 1; // SelectIndex is 1-based
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Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
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// Setup the DHCPv6 offer packet
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (2);
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Private.DnsServer = NULL;
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ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_DEVICE_ERROR);
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ASSERT_EQ (Private.DnsServer, nullptr);
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if (Private.DnsServer) {
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FreePool (Private.DnsServer);
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}
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}
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// Test Description
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// Test that we can handle recursive dns (multiple dns entries)
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TEST_F (PxeBcCacheDnsServerAddressesTest, MultipleDnsEntries) {
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EFI_DHCP6_PACKET_OPTION Option = { 0 };
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PXEBC_DHCP6_PACKET_CACHE *Cache6 = NULL;
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Private.SelectIndex = 1; // SelectIndex is 1-based
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Cache6 = &Private.OfferBuffer[Private.SelectIndex - 1].Dhcp6;
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] = &Option;
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// Setup the DHCPv6 offer packet
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpCode = DHCP6_OPT_SERVER_ID;
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EFI_IPv6_ADDRESS addresses[2] = {
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// 2001:db8:85a3::8a2e:370:7334
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{ 0x20, 0x01, 0x0d, 0xb8, 0x85, 0xa3, 0x00, 0x00, 0x00, 0x00, 0x8a, 0x2e, 0x03, 0x70, 0x73, 0x34 },
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// fe80::d478:91c3:ecd7:4ff9
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{ 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd4, 0x78, 0x91, 0xc3, 0xec, 0xd7, 0x4f, 0xf9 }
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};
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CopyMem (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, &addresses, sizeof (addresses));
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Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen = NTOHS (sizeof (addresses));
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Private.DnsServer = NULL;
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ASSERT_EQ (PxeBcCacheDnsServerAddresses (&(PxeBcCacheDnsServerAddressesTest::Private), Cache6), EFI_SUCCESS);
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ASSERT_NE (Private.DnsServer, nullptr);
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//
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// This is expected to fail until DnsServer supports multiple DNS servers
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//
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// This is tracked in https://bugzilla.tianocore.org/show_bug.cgi?id=1886
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//
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// Disabling:
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// ASSERT_EQ (CompareMem(Private.DnsServer, &addresses, sizeof(addresses)), 0);
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if (Private.DnsServer) {
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FreePool (Private.DnsServer);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// PxeBcRequestBootServiceTest Test Cases
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///////////////////////////////////////////////////////////////////////////////
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class PxeBcRequestBootServiceTest : public ::testing::Test {
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public:
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PXEBC_PRIVATE_DATA Private = { 0 };
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EFI_UDP6_PROTOCOL Udp6Read;
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protected:
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// Add any setup code if needed
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virtual void
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SetUp (
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)
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{
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Private.Dhcp6Request = (EFI_DHCP6_PACKET *)AllocateZeroPool (PACKET_SIZE);
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// Need to setup the EFI_PXE_BASE_CODE_PROTOCOL
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// The function under test really only needs the following:
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// UdpWrite
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// UdpRead
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Private.PxeBc.UdpWrite = (EFI_PXE_BASE_CODE_UDP_WRITE)MockUdpWrite;
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Private.PxeBc.UdpRead = (EFI_PXE_BASE_CODE_UDP_READ)MockUdpRead;
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// Need to setup EFI_UDP6_PROTOCOL
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// The function under test really only needs the following:
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// Configure
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Udp6Read.Configure = (EFI_UDP6_CONFIGURE)MockConfigure;
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Private.Udp6Read = &Udp6Read;
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}
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// Add any cleanup code if needed
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virtual void
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TearDown (
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)
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{
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if (Private.Dhcp6Request != NULL) {
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FreePool (Private.Dhcp6Request);
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}
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// Clean up any resources or variables
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}
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};
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TEST_F (PxeBcRequestBootServiceTest, ServerDiscoverBasicUsageTest) {
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PxeBcRequestBootServiceTest::Private.OfferBuffer[0].Dhcp6.OfferType = PxeOfferTypeProxyBinl;
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DHCP6_OPTION_SERVER_ID Server = { 0 };
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Server.OptionCode = HTONS (DHCP6_OPT_SERVER_ID);
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Server.OptionLen = HTONS (16); // valid length
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UINT8 Index = 0;
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EFI_DHCP6_PACKET *Packet = (EFI_DHCP6_PACKET *)&Private.OfferBuffer[Index].Dhcp6.Packet.Offer;
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UINT8 *Cursor = (UINT8 *)(Packet->Dhcp6.Option);
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CopyMem (Cursor, &Server, sizeof (Server));
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Cursor += sizeof (Server);
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// Update the packet length
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Packet->Length = (UINT16)(Cursor - (UINT8 *)Packet);
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Packet->Size = PACKET_SIZE;
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ASSERT_EQ (PxeBcRequestBootService (&(PxeBcRequestBootServiceTest::Private), Index), EFI_SUCCESS);
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}
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TEST_F (PxeBcRequestBootServiceTest, AttemptDiscoverOverFlowExpectFailure) {
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PxeBcRequestBootServiceTest::Private.OfferBuffer[0].Dhcp6.OfferType = PxeOfferTypeProxyBinl;
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DHCP6_OPTION_SERVER_ID Server = { 0 };
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Server.OptionCode = HTONS (DHCP6_OPT_SERVER_ID);
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Server.OptionLen = HTONS (1500); // This length would overflow without a check
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UINT8 Index = 0;
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EFI_DHCP6_PACKET *Packet = (EFI_DHCP6_PACKET *)&Private.OfferBuffer[Index].Dhcp6.Packet.Offer;
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UINT8 *Cursor = (UINT8 *)(Packet->Dhcp6.Option);
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CopyMem (Cursor, &Server, sizeof (Server));
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Cursor += sizeof (Server);
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// Update the packet length
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Packet->Length = (UINT16)(Cursor - (UINT8 *)Packet);
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Packet->Size = PACKET_SIZE;
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// This is going to be stopped by the duid overflow check
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ASSERT_EQ (PxeBcRequestBootService (&(PxeBcRequestBootServiceTest::Private), Index), EFI_INVALID_PARAMETER);
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}
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TEST_F (PxeBcRequestBootServiceTest, RequestBasicUsageTest) {
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EFI_DHCP6_PACKET_OPTION RequestOpt = { 0 }; // the data section doesn't really matter
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RequestOpt.OpCode = HTONS (0x1337);
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RequestOpt.OpLen = 0; // valid length
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UINT8 Index = 0;
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EFI_DHCP6_PACKET *Packet = (EFI_DHCP6_PACKET *)&Private.Dhcp6Request[Index];
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UINT8 *Cursor = (UINT8 *)(Packet->Dhcp6.Option);
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CopyMem (Cursor, &RequestOpt, sizeof (RequestOpt));
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Cursor += sizeof (RequestOpt);
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// Update the packet length
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Packet->Length = (UINT16)(Cursor - (UINT8 *)Packet);
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Packet->Size = PACKET_SIZE;
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ASSERT_EQ (PxeBcRequestBootService (&(PxeBcRequestBootServiceTest::Private), Index), EFI_SUCCESS);
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}
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TEST_F (PxeBcRequestBootServiceTest, AttemptRequestOverFlowExpectFailure) {
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EFI_DHCP6_PACKET_OPTION RequestOpt = { 0 }; // the data section doesn't really matter
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RequestOpt.OpCode = HTONS (0x1337);
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RequestOpt.OpLen = 1500; // this length would overflow without a check
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UINT8 Index = 0;
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EFI_DHCP6_PACKET *Packet = (EFI_DHCP6_PACKET *)&Private.Dhcp6Request[Index];
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UINT8 *Cursor = (UINT8 *)(Packet->Dhcp6.Option);
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CopyMem (Cursor, &RequestOpt, sizeof (RequestOpt));
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Cursor += sizeof (RequestOpt);
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// Update the packet length
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Packet->Length = (UINT16)(Cursor - (UINT8 *)Packet);
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Packet->Size = PACKET_SIZE;
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ASSERT_EQ (PxeBcRequestBootService (&(PxeBcRequestBootServiceTest::Private), Index), EFI_OUT_OF_RESOURCES);
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}
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///////////////////////////////////////////////////////////////////////////////
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// PxeBcDhcp6Discover Test
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///////////////////////////////////////////////////////////////////////////////
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class PxeBcDhcp6DiscoverTest : public ::testing::Test {
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public:
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PXEBC_PRIVATE_DATA Private = { 0 };
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EFI_UDP6_PROTOCOL Udp6Read;
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protected:
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MockUefiRuntimeServicesTableLib RtServicesMock;
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// Add any setup code if needed
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virtual void
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SetUp (
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)
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{
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Private.Dhcp6Request = (EFI_DHCP6_PACKET *)AllocateZeroPool (PACKET_SIZE);
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// Need to setup the EFI_PXE_BASE_CODE_PROTOCOL
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// The function under test really only needs the following:
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// UdpWrite
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// UdpRead
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Private.PxeBc.UdpWrite = (EFI_PXE_BASE_CODE_UDP_WRITE)MockUdpWrite;
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Private.PxeBc.UdpRead = (EFI_PXE_BASE_CODE_UDP_READ)MockUdpRead;
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// Need to setup EFI_UDP6_PROTOCOL
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// The function under test really only needs the following:
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// Configure
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Udp6Read.Configure = (EFI_UDP6_CONFIGURE)MockConfigure;
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Private.Udp6Read = &Udp6Read;
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}
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// Add any cleanup code if needed
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virtual void
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TearDown (
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)
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{
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if (Private.Dhcp6Request != NULL) {
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FreePool (Private.Dhcp6Request);
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}
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// Clean up any resources or variables
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}
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};
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// Test Description
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// This will cause an overflow by an untrusted packet during the option parsing
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TEST_F (PxeBcDhcp6DiscoverTest, BasicOverflowTest) {
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EFI_IPv6_ADDRESS DestIp = { 0 };
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EFI_DHCP6_PACKET_OPTION RequestOpt = { 0 }; // the data section doesn't really matter
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RequestOpt.OpCode = HTONS (0x1337);
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RequestOpt.OpLen = HTONS (0xFFFF); // overflow
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UINT8 *Cursor = (UINT8 *)(Private.Dhcp6Request->Dhcp6.Option);
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CopyMem (Cursor, &RequestOpt, sizeof (RequestOpt));
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Cursor += sizeof (RequestOpt);
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Private.Dhcp6Request->Length = (UINT16)(Cursor - (UINT8 *)Private.Dhcp6Request);
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EXPECT_CALL (RtServicesMock, gRT_GetTime)
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.WillOnce (::testing::Return (0));
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ASSERT_EQ (
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PxeBcDhcp6Discover (
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&(PxeBcDhcp6DiscoverTest::Private),
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0,
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NULL,
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FALSE,
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(EFI_IP_ADDRESS *)&DestIp
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),
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EFI_OUT_OF_RESOURCES
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);
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}
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// Test Description
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// This will test that we can handle a packet with a valid option length
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TEST_F (PxeBcDhcp6DiscoverTest, BasicUsageTest) {
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EFI_IPv6_ADDRESS DestIp = { 0 };
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EFI_DHCP6_PACKET_OPTION RequestOpt = { 0 }; // the data section doesn't really matter
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RequestOpt.OpCode = HTONS (0x1337);
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RequestOpt.OpLen = HTONS (0x30);
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UINT8 *Cursor = (UINT8 *)(Private.Dhcp6Request->Dhcp6.Option);
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CopyMem (Cursor, &RequestOpt, sizeof (RequestOpt));
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Cursor += sizeof (RequestOpt);
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Private.Dhcp6Request->Length = (UINT16)(Cursor - (UINT8 *)Private.Dhcp6Request);
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EXPECT_CALL (RtServicesMock, gRT_GetTime)
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.WillOnce (::testing::Return (0));
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ASSERT_EQ (
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PxeBcDhcp6Discover (
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&(PxeBcDhcp6DiscoverTest::Private),
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0,
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NULL,
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FALSE,
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(EFI_IP_ADDRESS *)&DestIp
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),
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EFI_SUCCESS
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);
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}
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