| 1 | /** @file
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| 2 | Functions declaration related with DHCPv6 for UefiPxeBc Driver.
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| 3 |
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| 4 | Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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| 5 |
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 |
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| 8 | **/
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| 9 |
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| 10 | #ifndef __EFI_PXEBC_DHCP6_H__
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| 11 | #define __EFI_PXEBC_DHCP6_H__
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| 12 |
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| 13 | #define PXEBC_DHCP6_OPTION_MAX_NUM 16
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| 14 | #define PXEBC_DHCP6_OPTION_MAX_SIZE 312
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| 15 | #define PXEBC_DHCP6_PACKET_MAX_SIZE (sizeof (EFI_PXE_BASE_CODE_PACKET))
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| 16 | #define PXEBC_IP6_POLICY_MAX 0xff
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| 17 | #define PXEBC_IP6_ROUTE_TABLE_TIMEOUT 10
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| 18 |
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| 19 | #define PXEBC_DHCP6_S_PORT 547
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| 20 | #define PXEBC_DHCP6_C_PORT 546
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| 21 |
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| 22 | #define PXEBC_DHCP6_ENTERPRISE_NUM 343 // TODO: IANA TBD: temporarily using Intel's
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| 23 | #define PXEBC_DHCP6_MAX_BOOT_FILE_SIZE 65535 // It's a limitation of bit length, 65535*512 bytes.
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| 24 |
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| 25 |
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| 26 | #define PXEBC_DHCP6_IDX_IA_NA 0
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| 27 | #define PXEBC_DHCP6_IDX_BOOT_FILE_URL 1
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| 28 | #define PXEBC_DHCP6_IDX_BOOT_FILE_PARAM 2
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| 29 | #define PXEBC_DHCP6_IDX_VENDOR_CLASS 3
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| 30 | #define PXEBC_DHCP6_IDX_DNS_SERVER 4
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| 31 | #define PXEBC_DHCP6_IDX_MAX 5
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| 32 |
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| 33 | #define PXEBC_DHCP6_BOOT_FILE_URL_PREFIX "tftp://"
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| 34 | #define PXEBC_TFTP_URL_SEPARATOR '/'
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| 35 | #define PXEBC_ADDR_START_DELIMITER '['
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| 36 | #define PXEBC_ADDR_END_DELIMITER ']'
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| 37 |
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| 38 | #define GET_NEXT_DHCP6_OPTION(Opt) \
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| 39 | (EFI_DHCP6_PACKET_OPTION *) ((UINT8 *) (Opt) + \
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| 40 | sizeof (EFI_DHCP6_PACKET_OPTION) + (NTOHS ((Opt)->OpLen)) - 1)
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| 41 |
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| 42 | #define GET_DHCP6_OPTION_SIZE(Pkt) \
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| 43 | ((Pkt)->Length - sizeof (EFI_DHCP6_HEADER))
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| 44 |
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| 45 | #define IS_PROXY_OFFER(Type) \
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| 46 | ((Type) == PxeOfferTypeProxyBinl || \
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| 47 | (Type) == PxeOfferTypeProxyPxe10 || \
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| 48 | (Type) == PxeOfferTypeProxyWfm11a)
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| 49 |
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| 50 |
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| 51 | #pragma pack(1)
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| 52 | typedef struct {
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| 53 | UINT16 OpCode[256];
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| 54 | } PXEBC_DHCP6_OPTION_ORO;
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| 55 |
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| 56 | typedef struct {
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| 57 | UINT8 Type;
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| 58 | UINT8 MajorVer;
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| 59 | UINT8 MinorVer;
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| 60 | } PXEBC_DHCP6_OPTION_UNDI;
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| 61 |
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| 62 | typedef struct {
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| 63 | UINT16 Type;
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| 64 | } PXEBC_DHCP6_OPTION_ARCH;
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| 65 |
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| 66 | typedef struct {
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| 67 | UINT8 ClassIdentifier[10];
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| 68 | UINT8 ArchitecturePrefix[5];
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| 69 | UINT8 ArchitectureType[5];
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| 70 | UINT8 Lit3[1];
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| 71 | UINT8 InterfaceName[4];
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| 72 | UINT8 Lit4[1];
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| 73 | UINT8 UndiMajor[3];
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| 74 | UINT8 UndiMinor[3];
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| 75 | } PXEBC_CLASS_ID;
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| 76 |
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| 77 | typedef struct {
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| 78 | UINT32 Vendor;
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| 79 | UINT16 ClassLen;
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| 80 | PXEBC_CLASS_ID ClassId;
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| 81 | } PXEBC_DHCP6_OPTION_VENDOR_CLASS;
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| 82 |
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| 83 | #pragma pack()
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| 84 |
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| 85 | typedef union {
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| 86 | PXEBC_DHCP6_OPTION_ORO *Oro;
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| 87 | PXEBC_DHCP6_OPTION_UNDI *Undi;
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| 88 | PXEBC_DHCP6_OPTION_ARCH *Arch;
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| 89 | PXEBC_DHCP6_OPTION_VENDOR_CLASS *VendorClass;
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| 90 | } PXEBC_DHCP6_OPTION_ENTRY;
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| 91 |
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| 92 | typedef struct {
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| 93 | LIST_ENTRY Link;
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| 94 | EFI_DHCP6_PACKET_OPTION *Option;
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| 95 | UINT8 Precedence;
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| 96 | } PXEBC_DHCP6_OPTION_NODE;
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| 97 |
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| 98 | #define PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE (OFFSET_OF (EFI_DHCP6_PACKET, Dhcp6) + PXEBC_DHCP6_PACKET_MAX_SIZE)
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| 99 |
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| 100 | typedef union {
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| 101 | EFI_DHCP6_PACKET Offer;
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| 102 | EFI_DHCP6_PACKET Ack;
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| 103 | UINT8 Buffer[PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE];
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| 104 | } PXEBC_DHCP6_PACKET;
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| 105 |
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| 106 | typedef struct {
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| 107 | PXEBC_DHCP6_PACKET Packet;
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| 108 | PXEBC_OFFER_TYPE OfferType;
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| 109 | EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_IDX_MAX];
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| 110 | } PXEBC_DHCP6_PACKET_CACHE;
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| 111 |
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| 112 |
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| 113 |
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| 114 |
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| 115 | /**
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| 116 | Parse the Boot File URL option.
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| 117 |
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| 118 | @param[in] Private Pointer to PxeBc private data.
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| 119 | @param[out] FileName The pointer to the boot file name.
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| 120 | @param[in, out] SrvAddr The pointer to the boot server address.
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| 121 | @param[in] BootFile The pointer to the boot file URL option data.
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| 122 | @param[in] Length Length of the boot file URL option data.
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| 123 |
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| 124 | @retval EFI_ABORTED User canceled the operation.
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| 125 | @retval EFI_SUCCESS Selected the boot menu successfully.
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| 126 | @retval EFI_NOT_READY Read the input key from the keybroad has not finish.
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| 127 |
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| 128 | **/
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| 129 | EFI_STATUS
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| 130 | PxeBcExtractBootFileUrl (
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| 131 | IN PXEBC_PRIVATE_DATA *Private,
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| 132 | OUT UINT8 **FileName,
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| 133 | IN OUT EFI_IPv6_ADDRESS *SrvAddr,
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| 134 | IN CHAR8 *BootFile,
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| 135 | IN UINT16 Length
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| 136 | );
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| 137 |
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| 138 |
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| 139 | /**
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| 140 | Parse the Boot File Parameter option.
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| 141 |
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| 142 | @param[in] BootFilePara The pointer to the boot file parameter option data.
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| 143 | @param[out] BootFileSize The pointer to the parsed boot file size.
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| 144 |
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| 145 | @retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.
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| 146 | @retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.
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| 147 |
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| 148 | **/
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| 149 | EFI_STATUS
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| 150 | PxeBcExtractBootFileParam (
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| 151 | IN CHAR8 *BootFilePara,
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| 152 | OUT UINT16 *BootFileSize
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| 153 | );
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| 154 |
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| 155 |
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| 156 | /**
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| 157 | Parse the cached DHCPv6 packet, including all the options.
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| 158 |
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| 159 | @param[in] Cache6 The pointer to a cached DHCPv6 packet.
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| 160 |
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| 161 | @retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.
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| 162 | @retval EFI_DEVICE_ERROR Failed to parse and invalid packet.
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| 163 |
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| 164 | **/
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| 165 | EFI_STATUS
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| 166 | PxeBcParseDhcp6Packet (
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| 167 | IN PXEBC_DHCP6_PACKET_CACHE *Cache6
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| 168 | );
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| 169 |
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| 170 |
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| 171 | /**
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| 172 | Register the ready address by Ip6Config protocol.
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| 173 |
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| 174 | @param[in] Private The pointer to the PxeBc private data.
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| 175 | @param[in] Address The pointer to the ready address.
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| 176 |
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| 177 | @retval EFI_SUCCESS Registered the address succesfully.
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| 178 | @retval Others Failed to register the address.
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| 179 |
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| 180 | **/
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| 181 | EFI_STATUS
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| 182 | PxeBcRegisterIp6Address (
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| 183 | IN PXEBC_PRIVATE_DATA *Private,
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| 184 | IN EFI_IPv6_ADDRESS *Address
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| 185 | );
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| 186 |
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| 187 |
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| 188 | /**
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| 189 | Unregister the address by Ip6Config protocol.
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| 190 |
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| 191 | @param[in] Private The pointer to the PxeBc private data.
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| 192 |
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| 193 | **/
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| 194 | VOID
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| 195 | PxeBcUnregisterIp6Address (
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| 196 | IN PXEBC_PRIVATE_DATA *Private
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| 197 | );
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| 198 |
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| 199 |
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| 200 | /**
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| 201 | Build and send out the request packet for the bootfile, and parse the reply.
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| 202 |
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| 203 | @param[in] Private The pointer to the PxeBc private data.
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| 204 | @param[in] Type PxeBc option boot item type.
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| 205 | @param[in] Layer The pointer to the option boot item layer.
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| 206 | @param[in] UseBis Use BIS or not.
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| 207 | @param[in] DestIp The pointer to the server address.
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| 208 |
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| 209 | @retval EFI_SUCCESS Successfully discovered theboot file.
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| 210 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource.
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| 211 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.
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| 212 | @retval Others Failed to discover boot file.
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| 213 |
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| 214 | **/
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| 215 | EFI_STATUS
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| 216 | PxeBcDhcp6Discover (
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| 217 | IN PXEBC_PRIVATE_DATA *Private,
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| 218 | IN UINT16 Type,
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| 219 | IN UINT16 *Layer,
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| 220 | IN BOOLEAN UseBis,
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| 221 | IN EFI_IP_ADDRESS *DestIp
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| 222 | );
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| 223 |
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| 224 | /**
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| 225 | Set the IP6 policy to Automatic.
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| 226 |
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| 227 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.
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| 228 |
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| 229 | @retval EFI_SUCCESS Switch the IP policy succesfully.
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| 230 | @retval Others Unexpect error happened.
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| 231 |
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| 232 | **/
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| 233 | EFI_STATUS
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| 234 | PxeBcSetIp6Policy (
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| 235 | IN PXEBC_PRIVATE_DATA *Private
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| 236 | );
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| 237 |
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| 238 | /**
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| 239 | This function will register the station IP address and flush IP instance to start using the new IP address.
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| 240 |
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| 241 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.
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| 242 |
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| 243 | @retval EFI_SUCCESS The new IP address has been configured successfully.
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| 244 | @retval Others Failed to configure the address.
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| 245 |
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| 246 | **/
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| 247 | EFI_STATUS
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| 248 | PxeBcSetIp6Address (
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| 249 | IN PXEBC_PRIVATE_DATA *Private
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| 250 | );
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| 251 |
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| 252 | /**
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| 253 | Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.
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| 254 |
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| 255 | @param[in] Private The pointer to the PxeBc private data.
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| 256 | @param[in] Dhcp6 The pointer to EFI_DHCP6_PROTOCOL.
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| 257 |
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| 258 | @retval EFI_SUCCESS The S.A.R.R. process successfully finished.
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| 259 | @retval Others Failed to finish the S.A.R.R. process.
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| 260 |
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| 261 | **/
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| 262 | EFI_STATUS
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| 263 | PxeBcDhcp6Sarr (
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| 264 | IN PXEBC_PRIVATE_DATA *Private,
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| 265 | IN EFI_DHCP6_PROTOCOL *Dhcp6
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| 266 | );
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| 267 |
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| 268 | #endif
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| 269 |
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