| 1 | /** @file
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| 2 | Functions declaration related with DHCPv4 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_DHCP4_H__
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| 11 | #define __EFI_PXEBC_DHCP4_H__
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| 12 |
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| 13 | #define PXEBC_DHCP4_OPTION_MAX_NUM 16
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| 14 | #define PXEBC_DHCP4_OPTION_MAX_SIZE 312
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| 15 | #define PXEBC_DHCP4_PACKET_MAX_SIZE (sizeof (EFI_PXE_BASE_CODE_PACKET))
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| 16 | #define PXEBC_DHCP4_S_PORT 67
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| 17 | #define PXEBC_DHCP4_C_PORT 68
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| 18 | #define PXEBC_BS_DOWNLOAD_PORT 69
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| 19 | #define PXEBC_BS_DISCOVER_PORT 4011
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| 20 | #define PXEBC_DHCP4_OPCODE_REQUEST 1
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| 21 | #define PXEBC_DHCP4_OPCODE_REPLY 2
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| 22 | #define PXEBC_DHCP4_MSG_TYPE_REQUEST 3
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| 23 | #define PXEBC_DHCP4_MAGIC 0x63538263 // network byte order
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| 24 |
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| 25 | //
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| 26 | // Sub-Options in Dhcp Vendor Option
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| 27 | //
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| 28 | #define PXEBC_VENDOR_TAG_MTFTP_IP 1
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| 29 | #define PXEBC_VENDOR_TAG_MTFTP_CPORT 2
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| 30 | #define PXEBC_VENDOR_TAG_MTFTP_SPORT 3
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| 31 | #define PXEBC_VENDOR_TAG_MTFTP_TIMEOUT 4
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| 32 | #define PXEBC_VENDOR_TAG_MTFTP_DELAY 5
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| 33 | #define PXEBC_VENDOR_TAG_DISCOVER_CTRL 6
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| 34 | #define PXEBC_VENDOR_TAG_DISCOVER_MCAST 7
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| 35 | #define PXEBC_VENDOR_TAG_BOOT_SERVERS 8
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| 36 | #define PXEBC_VENDOR_TAG_BOOT_MENU 9
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| 37 | #define PXEBC_VENDOR_TAG_MENU_PROMPT 10
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| 38 | #define PXEBC_VENDOR_TAG_MCAST_ALLOC 11
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| 39 | #define PXEBC_VENDOR_TAG_CREDENTIAL_TYPES 12
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| 40 | #define PXEBC_VENDOR_TAG_BOOT_ITEM 71
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| 41 |
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| 42 | #define PXEBC_BOOT_REQUEST_TIMEOUT 1
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| 43 | #define PXEBC_BOOT_REQUEST_RETRIES 4
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| 44 |
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| 45 | #define PXEBC_DHCP4_OVERLOAD_FILE 1
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| 46 | #define PXEBC_DHCP4_OVERLOAD_SERVER_NAME 2
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| 47 |
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| 48 | //
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| 49 | // The array index of the DHCP4 option tag interested
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| 50 | //
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| 51 | #define PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN 0
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| 52 | #define PXEBC_DHCP4_TAG_INDEX_VENDOR 1
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| 53 | #define PXEBC_DHCP4_TAG_INDEX_OVERLOAD 2
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| 54 | #define PXEBC_DHCP4_TAG_INDEX_MSG_TYPE 3
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| 55 | #define PXEBC_DHCP4_TAG_INDEX_SERVER_ID 4
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| 56 | #define PXEBC_DHCP4_TAG_INDEX_CLASS_ID 5
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| 57 | #define PXEBC_DHCP4_TAG_INDEX_BOOTFILE 6
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| 58 | #define PXEBC_DHCP4_TAG_INDEX_MAX 7
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| 59 |
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| 60 | //
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| 61 | // Dhcp4 and Dhcp6 share this definition, and corresponding
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| 62 | // relationship is as follows:
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| 63 | //
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| 64 | // Dhcp4Discover <> Dhcp6Solicit
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| 65 | // Dhcp4Offer <> Dhcp6Advertise
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| 66 | // Dhcp4Request <> Dhcp6Request
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| 67 | // Dhcp4Ack <> DHcp6Reply
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| 68 | //
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| 69 | typedef enum {
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| 70 | PxeOfferTypeDhcpOnly,
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| 71 | PxeOfferTypeDhcpPxe10,
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| 72 | PxeOfferTypeDhcpWfm11a,
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| 73 | PxeOfferTypeDhcpBinl,
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| 74 | PxeOfferTypeProxyPxe10,
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| 75 | PxeOfferTypeProxyWfm11a,
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| 76 | PxeOfferTypeProxyBinl,
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| 77 | PxeOfferTypeBootp,
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| 78 | PxeOfferTypeMax
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| 79 | } PXEBC_OFFER_TYPE;
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| 80 |
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| 81 | #define BIT(x) (1 << x)
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| 82 | #define CTRL(x) (0x1F & (x))
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| 83 | #define DEFAULT_CLASS_ID_DATA "PXEClient:Arch:xxxxx:UNDI:003000"
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| 84 | #define DEFAULT_UNDI_TYPE 1
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| 85 | #define DEFAULT_UNDI_MAJOR 3
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| 86 | #define DEFAULT_UNDI_MINOR 0
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| 87 |
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| 88 | #define MTFTP_VENDOR_OPTION_BIT_MAP \
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| 89 | (BIT (PXEBC_VENDOR_TAG_MTFTP_IP) | \
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| 90 | BIT (PXEBC_VENDOR_TAG_MTFTP_CPORT) | \
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| 91 | BIT (PXEBC_VENDOR_TAG_MTFTP_SPORT) | \
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| 92 | BIT (PXEBC_VENDOR_TAG_MTFTP_TIMEOUT) | \
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| 93 | BIT (PXEBC_VENDOR_TAG_MTFTP_DELAY))
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| 94 |
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| 95 | #define DISCOVER_VENDOR_OPTION_BIT_MAP \
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| 96 | (BIT (PXEBC_VENDOR_TAG_DISCOVER_CTRL) | \
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| 97 | BIT (PXEBC_VENDOR_TAG_DISCOVER_MCAST) | \
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| 98 | BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS) | \
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| 99 | BIT (PXEBC_VENDOR_TAG_BOOT_MENU) | \
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| 100 | BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))
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| 101 |
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| 102 | #define IS_VALID_BOOT_SERVERS(x) \
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| 103 | ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS)) \
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| 104 | == BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS))
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| 105 |
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| 106 | #define IS_VALID_BOOT_PROMPT(x) \
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| 107 | ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_MENU_PROMPT)) \
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| 108 | == BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))
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| 109 |
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| 110 | #define IS_VALID_BOOT_MENU(x) \
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| 111 | ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_MENU)) \
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| 112 | == BIT (PXEBC_VENDOR_TAG_BOOT_MENU))
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| 113 |
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| 114 | #define IS_VALID_MTFTP_VENDOR_OPTION(x) \
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| 115 | (((UINT32) ((x)[0]) & MTFTP_VENDOR_OPTION_BIT_MAP) \
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| 116 | == MTFTP_VENDOR_OPTION_BIT_MAP)
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| 117 |
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| 118 | #define IS_VALID_DISCOVER_VENDOR_OPTION(x) \
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| 119 | (((UINT32) ((x)[0]) & DISCOVER_VENDOR_OPTION_BIT_MAP) != 0)
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| 120 |
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| 121 | #define IS_VALID_CREDENTIAL_VENDOR_OPTION(x) \
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| 122 | (((UINT32) ((x)[0]) & BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES)) \
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| 123 | == BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES))
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| 124 |
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| 125 | #define IS_VALID_BOOTITEM_VENDOR_OPTION(x) \
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| 126 | (((UINT32) ((x)[PXEBC_VENDOR_TAG_BOOT_ITEM / 32]) & \
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| 127 | BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32)) \
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| 128 | == BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32))
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| 129 |
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| 130 | #define SET_VENDOR_OPTION_BIT_MAP(x, y) \
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| 131 | (*(x + ((y) / 32)) = (UINT32) ((UINT32) ((x)[(y) / 32]) | BIT ((y) % 32)))
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| 132 |
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| 133 | #define GET_NEXT_DHCP_OPTION(Opt) \
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| 134 | (EFI_DHCP4_PACKET_OPTION *) ((UINT8 *) (Opt) + \
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| 135 | sizeof (EFI_DHCP4_PACKET_OPTION) + (Opt)->Length - 1)
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| 136 |
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| 137 | #define GET_OPTION_BUFFER_LEN(Pkt) \
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| 138 | ((Pkt)->Length - sizeof (EFI_DHCP4_HEADER) - 4)
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| 139 |
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| 140 | #define GET_NEXT_BOOT_SVR_ENTRY(Ent) \
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| 141 | (PXEBC_BOOT_SVR_ENTRY *) ((UINT8 *) Ent + sizeof (*(Ent)) + \
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| 142 | ((Ent)->IpCnt - 1) * sizeof (EFI_IPv4_ADDRESS))
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| 143 |
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| 144 | #define IS_PROXY_DHCP_OFFER(Offer) \
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| 145 | EFI_IP4_EQUAL (&(Offer)->Dhcp4.Header.YourAddr, &mZeroIp4Addr)
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| 146 |
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| 147 | #define IS_DISABLE_BCAST_DISCOVER(x) \
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| 148 | (((x) & BIT (0)) == BIT (0))
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| 149 |
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| 150 | #define IS_DISABLE_MCAST_DISCOVER(x) \
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| 151 | (((x) & BIT (1)) == BIT (1))
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| 152 |
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| 153 | #define IS_ENABLE_USE_SERVER_LIST(x) \
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| 154 | (((x) & BIT (2)) == BIT (2))
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| 155 |
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| 156 | #define IS_DISABLE_PROMPT_MENU(x) \
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| 157 | (((x) & BIT (3)) == BIT (3))
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| 158 |
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| 159 | #pragma pack(1)
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| 160 | typedef struct {
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| 161 | UINT8 ParaList[135];
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| 162 | } PXEBC_DHCP4_OPTION_PARA;
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| 163 |
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| 164 | typedef struct {
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| 165 | UINT16 Size;
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| 166 | } PXEBC_DHCP4_OPTION_MAX_MESG_SIZE;
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| 167 |
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| 168 | typedef struct {
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| 169 | UINT8 Type;
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| 170 | UINT8 MajorVer;
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| 171 | UINT8 MinorVer;
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| 172 | } PXEBC_DHCP4_OPTION_UNDI;
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| 173 |
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| 174 | typedef struct {
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| 175 | UINT8 Type;
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| 176 | } PXEBC_DHCP4_OPTION_MESG;
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| 177 |
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| 178 | typedef struct {
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| 179 | UINT16 Type;
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| 180 | } PXEBC_DHCP4_OPTION_ARCH;
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| 181 |
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| 182 | typedef struct {
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| 183 | UINT8 ClassIdentifier[10];
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| 184 | UINT8 ArchitecturePrefix[5];
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| 185 | UINT8 ArchitectureType[5];
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| 186 | UINT8 Lit3[1];
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| 187 | UINT8 InterfaceName[4];
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| 188 | UINT8 Lit4[1];
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| 189 | UINT8 UndiMajor[3];
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| 190 | UINT8 UndiMinor[3];
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| 191 | } PXEBC_DHCP4_OPTION_CLID;
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| 192 |
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| 193 | typedef struct {
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| 194 | UINT8 Type;
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| 195 | UINT8 Guid[16];
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| 196 | } PXEBC_DHCP4_OPTION_UUID;
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| 197 |
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| 198 | typedef struct {
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| 199 | UINT16 Type;
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| 200 | UINT16 Layer;
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| 201 | } PXEBC_OPTION_BOOT_ITEM;
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| 202 |
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| 203 | #pragma pack()
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| 204 |
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| 205 | typedef union {
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| 206 | PXEBC_DHCP4_OPTION_PARA *Para;
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| 207 | PXEBC_DHCP4_OPTION_UNDI *Undi;
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| 208 | PXEBC_DHCP4_OPTION_ARCH *Arch;
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| 209 | PXEBC_DHCP4_OPTION_CLID *Clid;
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| 210 | PXEBC_DHCP4_OPTION_UUID *Uuid;
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| 211 | PXEBC_DHCP4_OPTION_MESG *Mesg;
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| 212 | PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *MaxMesgSize;
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| 213 | } PXEBC_DHCP4_OPTION_ENTRY;
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| 214 |
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| 215 | #pragma pack(1)
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| 216 | typedef struct {
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| 217 | UINT16 Type;
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| 218 | UINT8 IpCnt;
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| 219 | EFI_IPv4_ADDRESS IpAddr[1];
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| 220 | } PXEBC_BOOT_SVR_ENTRY;
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| 221 |
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| 222 | typedef struct {
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| 223 | UINT16 Type;
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| 224 | UINT8 DescLen;
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| 225 | UINT8 DescStr[1];
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| 226 | } PXEBC_BOOT_MENU_ENTRY;
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| 227 |
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| 228 | typedef struct {
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| 229 | UINT8 Timeout;
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| 230 | UINT8 Prompt[1];
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| 231 | } PXEBC_MENU_PROMPT;
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| 232 | #pragma pack()
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| 233 |
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| 234 | typedef struct {
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| 235 | UINT32 BitMap[8];
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| 236 | EFI_IPv4_ADDRESS MtftpIp;
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| 237 | UINT16 MtftpCPort;
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| 238 | UINT16 MtftpSPort;
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| 239 | UINT8 MtftpTimeout;
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| 240 | UINT8 MtftpDelay;
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| 241 | UINT8 DiscoverCtrl;
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| 242 | EFI_IPv4_ADDRESS DiscoverMcastIp;
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| 243 | EFI_IPv4_ADDRESS McastIpBase;
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| 244 | UINT16 McastIpBlock;
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| 245 | UINT16 McastIpRange;
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| 246 | UINT16 BootSrvType;
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| 247 | UINT16 BootSrvLayer;
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| 248 | PXEBC_BOOT_SVR_ENTRY *BootSvr;
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| 249 | UINT8 BootSvrLen;
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| 250 | PXEBC_BOOT_MENU_ENTRY *BootMenu;
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| 251 | UINT8 BootMenuLen;
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| 252 | PXEBC_MENU_PROMPT *MenuPrompt;
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| 253 | UINT8 MenuPromptLen;
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| 254 | UINT32 *CredType;
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| 255 | UINT8 CredTypeLen;
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| 256 | } PXEBC_VENDOR_OPTION;
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| 257 |
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| 258 | #define PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE (OFFSET_OF (EFI_DHCP4_PACKET, Dhcp4) + PXEBC_DHCP4_PACKET_MAX_SIZE)
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| 259 |
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| 260 | typedef union {
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| 261 | EFI_DHCP4_PACKET Offer;
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| 262 | EFI_DHCP4_PACKET Ack;
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| 263 | UINT8 Buffer[PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE];
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| 264 | } PXEBC_DHCP4_PACKET;
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| 265 |
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| 266 | typedef struct {
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| 267 | PXEBC_DHCP4_PACKET Packet;
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| 268 | PXEBC_OFFER_TYPE OfferType;
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| 269 | EFI_DHCP4_PACKET_OPTION *OptList[PXEBC_DHCP4_TAG_INDEX_MAX];
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| 270 | PXEBC_VENDOR_OPTION VendorOpt;
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| 271 | } PXEBC_DHCP4_PACKET_CACHE;
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| 272 |
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| 273 | /**
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| 274 | Create a template DHCPv4 packet as a seed.
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| 275 |
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| 276 | @param[out] Seed Pointer to the seed packet.
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| 277 | @param[in] Udp4 Pointer to EFI_UDP4_PROTOCOL.
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| 278 |
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| 279 | **/
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| 280 | VOID
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| 281 | PxeBcSeedDhcp4Packet (
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| 282 | OUT EFI_DHCP4_PACKET *Seed,
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| 283 | IN EFI_UDP4_PROTOCOL *Udp4
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| 284 | );
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| 285 |
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| 286 | /**
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| 287 | Parse the cached DHCPv4 packet, including all the options.
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| 288 |
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| 289 | @param[in] Cache4 Pointer to cached DHCPv4 packet.
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| 290 |
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| 291 | @retval EFI_SUCCESS Parsed the DHCPv4 packet successfully.
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| 292 | @retval EFI_DEVICE_ERROR Failed to parse and invalid packet.
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| 293 |
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| 294 | **/
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| 295 | EFI_STATUS
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| 296 | PxeBcParseDhcp4Packet (
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| 297 | IN PXEBC_DHCP4_PACKET_CACHE *Cache4
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| 298 | );
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| 299 |
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| 300 | /**
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| 301 | Build and send out the request packet for the bootfile, and parse the reply.
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| 302 |
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| 303 | @param[in] Private Pointer to PxeBc private data.
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| 304 | @param[in] Type PxeBc option boot item type.
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| 305 | @param[in] Layer Pointer to option boot item layer.
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| 306 | @param[in] UseBis Use BIS or not.
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| 307 | @param[in] DestIp Pointer to the server address.
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| 308 | @param[in] IpCount The total count of the server address.
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| 309 | @param[in] SrvList Pointer to EFI_PXE_BASE_CODE_SRVLIST.
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| 310 |
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| 311 | @retval EFI_SUCCESS Successfully discovered boot file.
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| 312 | @retval EFI_OUT_OF_RESOURCES Failed to allocate resource.
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| 313 | @retval EFI_NOT_FOUND Can't get the PXE reply packet.
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| 314 | @retval Others Failed to discover boot file.
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| 315 |
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| 316 | **/
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| 317 | EFI_STATUS
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| 318 | PxeBcDhcp4Discover (
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| 319 | IN PXEBC_PRIVATE_DATA *Private,
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| 320 | IN UINT16 Type,
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| 321 | IN UINT16 *Layer,
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| 322 | IN BOOLEAN UseBis,
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| 323 | IN EFI_IP_ADDRESS *DestIp,
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| 324 | IN UINT16 IpCount,
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| 325 | IN EFI_PXE_BASE_CODE_SRVLIST *SrvList
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| 326 | );
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| 327 |
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| 328 | /**
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| 329 | Switch the Ip4 policy to static.
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| 330 |
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| 331 | @param[in] Private The pointer to PXEBC_PRIVATE_DATA.
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| 332 |
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| 333 | @retval EFI_SUCCESS The policy is already configured to static.
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| 334 | @retval Others Other error as indicated..
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| 335 |
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| 336 | **/
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| 337 | EFI_STATUS
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| 338 | PxeBcSetIp4Policy (
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| 339 | IN PXEBC_PRIVATE_DATA *Private
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| 340 | );
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| 341 |
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| 342 | /**
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| 343 | Start the D.O.R.A DHCPv4 process to acquire the IPv4 address and other PXE boot information.
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| 344 |
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| 345 | @param[in] Private Pointer to PxeBc private data.
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| 346 | @param[in] Dhcp4 Pointer to the EFI_DHCP4_PROTOCOL
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| 347 |
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| 348 | @retval EFI_SUCCESS The D.O.R.A process successfully finished.
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| 349 | @retval Others Failed to finish the D.O.R.A process.
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| 350 |
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| 351 | **/
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| 352 | EFI_STATUS
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| 353 | PxeBcDhcp4Dora (
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| 354 | IN PXEBC_PRIVATE_DATA *Private,
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| 355 | IN EFI_DHCP4_PROTOCOL *Dhcp4
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| 356 | );
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| 357 |
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| 358 | #endif
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