| 1 | /** @file
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| 2 | UEFI Component Name(2) protocol implementation for Dhcp6 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 | #include "Dhcp6Impl.h"
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| 11 |
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| 12 |
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| 13 | /**
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| 14 | Retrieves a Unicode string that is the user-readable name of the driver.
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| 15 |
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| 16 | This function retrieves the user-readable name of a driver in the form of a
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| 17 | Unicode string. If the driver specified by This has a user-readable name in
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| 18 | the language specified by Language, then a pointer to the driver name is
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| 19 | returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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| 20 | by This does not support the language specified by Language,
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| 21 | then EFI_UNSUPPORTED is returned.
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| 22 |
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| 23 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 24 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 25 |
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| 26 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 27 | array indicating the language. This is the
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| 28 | language of the driver name that the caller is
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| 29 | requesting, and it must match one of the
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| 30 | languages specified in SupportedLanguages. The
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| 31 | number of languages supported by a driver is up
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| 32 | to the driver writer. Language is specified
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| 33 | in RFC 4646 or ISO 639-2 language code format.
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| 34 |
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| 35 | @param[out] DriverName A pointer to the Unicode string to return.
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| 36 | This Unicode string is the name of the
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| 37 | driver specified by This in the language
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| 38 | specified by Language.
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| 39 |
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| 40 | @retval EFI_SUCCESS The Unicode string for the Driver specified by
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| 41 | This and the language specified by Language was
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| 42 | returned in DriverName.
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| 43 |
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| 44 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 45 |
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| 46 | @retval EFI_INVALID_PARAMETER DriverName is NULL.
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| 47 |
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| 48 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 49 | the language specified by Language.
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| 50 |
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| 51 | **/
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| 52 | EFI_STATUS
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| 53 | EFIAPI
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| 54 | Dhcp6ComponentNameGetDriverName (
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| 55 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 56 | IN CHAR8 *Language,
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| 57 | OUT CHAR16 **DriverName
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| 58 | );
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| 59 |
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| 60 |
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| 61 | /**
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| 62 | Retrieves a Unicode string that is the user-readable name of the controller
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| 63 | that is being managed by a driver.
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| 64 |
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| 65 | This function retrieves the user-readable name of the controller specified by
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| 66 | ControllerHandle and ChildHandle in the form of a Unicode string. If the
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| 67 | driver specified by This has a user-readable name in the language specified by
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| 68 | Language, then a pointer to the controller name is returned in ControllerName,
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| 69 | and EFI_SUCCESS is returned. If the driver specified by This is not currently
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| 70 | managing the controller specified by ControllerHandle and ChildHandle,
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| 71 | then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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| 72 | support the language specified by Language, then EFI_UNSUPPORTED is returned.
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| 73 |
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| 74 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 75 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 76 |
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| 77 | @param[in] ControllerHandle The handle of a controller that the driver
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| 78 | specified by This is managing. This handle
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| 79 | specifies the controller whose name is to be
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| 80 | returned.
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| 81 |
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| 82 | @param[in] ChildHandle The handle of the child controller to retrieve
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| 83 | the name of. This is an optional parameter that
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| 84 | may be NULL. It will be NULL for device
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| 85 | drivers. It will also be NULL for a bus drivers
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| 86 | that attempt to retrieve the name of the bus
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| 87 | controller. It will not be NULL for a bus
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| 88 | driver that attempts to retrieve the name of a
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| 89 | child controller.
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| 90 |
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| 91 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 92 | array indicating the language. This is the
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| 93 | language of the driver name that the caller is
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| 94 | requesting, and it must match one of the
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| 95 | languages specified in SupportedLanguages. The
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| 96 | number of languages supported by a driver is up
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| 97 | to the driver writer. Language is specified in
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| 98 | RFC 4646 or ISO 639-2 language code format.
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| 99 |
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| 100 | @param[out] ControllerName A pointer to the Unicode string to return.
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| 101 | This Unicode string is the name of the
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| 102 | controller specified by ControllerHandle and
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| 103 | ChildHandle in the language specified by
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| 104 | Language, from the point of view of the driver
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| 105 | specified by This.
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| 106 |
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| 107 | @retval EFI_SUCCESS The Unicode string for the user-readable name in
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| 108 | the language specified by Language for the
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| 109 | driver specified by This was returned in
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| 110 | DriverName.
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| 111 |
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| 112 | @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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| 113 |
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| 114 | @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
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| 115 | EFI_HANDLE.
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| 116 |
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| 117 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 118 |
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| 119 | @retval EFI_INVALID_PARAMETER ControllerName is NULL.
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| 120 |
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| 121 | @retval EFI_UNSUPPORTED The driver specified by This is not currently
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| 122 | managing the controller specified by
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| 123 | ControllerHandle and ChildHandle.
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| 124 |
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| 125 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 126 | the language specified by Language.
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| 127 |
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| 128 | **/
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| 129 | EFI_STATUS
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| 130 | EFIAPI
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| 131 | Dhcp6ComponentNameGetControllerName (
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| 132 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 133 | IN EFI_HANDLE ControllerHandle,
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| 134 | IN EFI_HANDLE ChildHandle OPTIONAL,
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| 135 | IN CHAR8 *Language,
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| 136 | OUT CHAR16 **ControllerName
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| 137 | );
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| 138 |
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| 139 |
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| 140 | //
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| 141 | // EFI Component Name Protocol
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| 142 | //
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| 143 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gDhcp6ComponentName = {
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| 144 | Dhcp6ComponentNameGetDriverName,
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| 145 | Dhcp6ComponentNameGetControllerName,
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| 146 | "eng"
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| 147 | };
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| 148 |
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| 149 | //
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| 150 | // EFI Component Name 2 Protocol
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| 151 | //
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| 152 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gDhcp6ComponentName2 = {
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| 153 | (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) Dhcp6ComponentNameGetDriverName,
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| 154 | (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) Dhcp6ComponentNameGetControllerName,
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| 155 | "en"
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| 156 | };
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| 157 |
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| 158 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mDhcp6DriverNameTable[] = {
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| 159 | {
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| 160 | "eng;en",
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| 161 | L"DHCP6 Protocol Driver"
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| 162 | },
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| 163 | {
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| 164 | NULL,
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| 165 | NULL
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| 166 | }
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| 167 | };
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| 168 |
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| 169 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE *gDhcp6ControllerNameTable = NULL;
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| 170 |
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| 171 | CHAR16 *mDhcp6ControllerName[] = {
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| 172 | L"DHCPv6 (State=0, Init)",
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| 173 | L"DHCPv6 (State=1, Selecting)",
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| 174 | L"DHCPv6 (State=2, Requesting)",
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| 175 | L"DHCPv6 (State=3, Declining)",
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| 176 | L"DHCPv6 (State=4, Confirming)",
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| 177 | L"DHCPv6 (State=5, Releasing)",
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| 178 | L"DHCPv6 (State=6, Bound)",
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| 179 | L"DHCPv6 (State=7, Renewing)",
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| 180 | L"DHCPv6 (State=8, Rebinding)"
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| 181 | };
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| 182 |
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| 183 | /**
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| 184 | Retrieves a Unicode string that is the user-readable name of the driver.
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| 185 |
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| 186 | This function retrieves the user-readable name of a driver in the form of a
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| 187 | Unicode string. If the driver specified by This has a user-readable name in
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| 188 | the language specified by Language, then a pointer to the driver name is
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| 189 | returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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| 190 | by This does not support the language specified by Language,
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| 191 | then EFI_UNSUPPORTED is returned.
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| 192 |
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| 193 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 194 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 195 |
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| 196 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 197 | array indicating the language. This is the
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| 198 | language of the driver name that the caller is
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| 199 | requesting, and it must match one of the
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| 200 | languages specified in SupportedLanguages. The
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| 201 | number of languages supported by a driver is up
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| 202 | to the driver writer. Language is specified
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| 203 | in RFC 4646 or ISO 639-2 language code format.
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| 204 |
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| 205 | @param[out] DriverName A pointer to the Unicode string to return.
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| 206 | This Unicode string is the name of the
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| 207 | driver specified by This in the language
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| 208 | specified by Language.
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| 209 |
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| 210 | @retval EFI_SUCCESS The Unicode string for the Driver specified by
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| 211 | This and the language specified by Language was
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| 212 | returned in DriverName.
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| 213 |
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| 214 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 215 |
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| 216 | @retval EFI_INVALID_PARAMETER DriverName is NULL.
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| 217 |
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| 218 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 219 | the language specified by Language.
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| 220 |
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| 221 | **/
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| 222 | EFI_STATUS
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| 223 | EFIAPI
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| 224 | Dhcp6ComponentNameGetDriverName (
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| 225 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 226 | IN CHAR8 *Language,
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| 227 | OUT CHAR16 **DriverName
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| 228 | )
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| 229 | {
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| 230 | return LookupUnicodeString2 (
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| 231 | Language,
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| 232 | This->SupportedLanguages,
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| 233 | mDhcp6DriverNameTable,
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| 234 | DriverName,
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| 235 | (BOOLEAN)(This == &gDhcp6ComponentName)
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| 236 | );
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| 237 | }
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| 238 |
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| 239 | /**
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| 240 | Update the component name for the Dhcp6 child handle.
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| 241 |
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| 242 | @param Dhcp6[in] A pointer to the EFI_DHCP6_PROTOCOL.
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| 243 |
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| 244 |
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| 245 | @retval EFI_SUCCESS Update the ControllerNameTable of this instance successfully.
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| 246 | @retval EFI_INVALID_PARAMETER The input parameter is invalid.
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| 247 |
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| 248 | **/
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| 249 | EFI_STATUS
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| 250 | UpdateName (
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| 251 | IN EFI_DHCP6_PROTOCOL *Dhcp6
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| 252 | )
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| 253 | {
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| 254 | EFI_STATUS Status;
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| 255 | EFI_DHCP6_MODE_DATA Dhcp6ModeData;
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| 256 | CHAR16 *HandleName;
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| 257 |
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| 258 | if (Dhcp6 == NULL) {
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| 259 | return EFI_INVALID_PARAMETER;
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| 260 | }
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| 261 |
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| 262 | //
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| 263 | // Format the child name into the string buffer.
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| 264 | //
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| 265 | Status = Dhcp6->GetModeData (Dhcp6, &Dhcp6ModeData, NULL);
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| 266 | if (EFI_ERROR (Status)) {
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| 267 | return Status;
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| 268 | }
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| 269 |
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| 270 | if (gDhcp6ControllerNameTable != NULL) {
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| 271 | FreeUnicodeStringTable (gDhcp6ControllerNameTable);
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| 272 | gDhcp6ControllerNameTable = NULL;
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| 273 | }
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| 274 |
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| 275 | if (Dhcp6ModeData.Ia == NULL) {
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| 276 | HandleName = L"DHCPv6 (No configured IA)";
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| 277 | } else {
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| 278 | if (Dhcp6ModeData.Ia->State > Dhcp6Rebinding) {
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| 279 | return EFI_DEVICE_ERROR;
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| 280 | }
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| 281 | HandleName = mDhcp6ControllerName[Dhcp6ModeData.Ia->State];
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| 282 | }
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| 283 |
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| 284 | if (Dhcp6ModeData.Ia != NULL) {
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| 285 | FreePool (Dhcp6ModeData.Ia);
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| 286 | }
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| 287 | if (Dhcp6ModeData.ClientId != NULL) {
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| 288 | FreePool (Dhcp6ModeData.ClientId);
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| 289 | }
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| 290 |
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| 291 | Status = AddUnicodeString2 (
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| 292 | "eng",
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| 293 | gDhcp6ComponentName.SupportedLanguages,
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| 294 | &gDhcp6ControllerNameTable,
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| 295 | HandleName,
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| 296 | TRUE
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| 297 | );
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| 298 | if (EFI_ERROR (Status)) {
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| 299 | return Status;
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| 300 | }
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| 301 |
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| 302 | return AddUnicodeString2 (
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| 303 | "en",
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| 304 | gDhcp6ComponentName2.SupportedLanguages,
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| 305 | &gDhcp6ControllerNameTable,
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| 306 | HandleName,
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| 307 | FALSE
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| 308 | );
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| 309 | }
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| 310 |
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| 311 | /**
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| 312 | Retrieves a Unicode string that is the user-readable name of the controller
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| 313 | that is being managed by a driver.
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| 314 |
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| 315 | This function retrieves the user-readable name of the controller specified by
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| 316 | ControllerHandle and ChildHandle in the form of a Unicode string. If the
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| 317 | driver specified by This has a user-readable name in the language specified by
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| 318 | Language, then a pointer to the controller name is returned in ControllerName,
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| 319 | and EFI_SUCCESS is returned. If the driver specified by This is not currently
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| 320 | managing the controller specified by ControllerHandle and ChildHandle,
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| 321 | then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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| 322 | support the language specified by Language, then EFI_UNSUPPORTED is returned.
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| 323 |
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| 324 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 325 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 326 |
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| 327 | @param[in] ControllerHandle The handle of a controller that the driver
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| 328 | specified by This is managing. This handle
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| 329 | specifies the controller whose name is to be
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| 330 | returned.
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| 331 |
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| 332 | @param[in] ChildHandle The handle of the child controller to retrieve
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| 333 | the name of. This is an optional parameter that
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| 334 | may be NULL. It will be NULL for device
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| 335 | drivers. It will also be NULL for a bus drivers
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| 336 | that wish to retrieve the name of the bus
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| 337 | controller. It will not be NULL for a bus
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| 338 | driver that wishes to retrieve the name of a
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| 339 | child controller.
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| 340 |
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| 341 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 342 | array indicating the language. This is the
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| 343 | language of the driver name that the caller is
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| 344 | requesting, and it must match one of the
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| 345 | languages specified in SupportedLanguages. The
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| 346 | number of languages supported by a driver is up
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| 347 | to the driver writer. Language is specified in the
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| 348 | RFC 4646 or ISO 639-2 language code format.
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| 349 |
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| 350 | @param[out] ControllerName A pointer to the Unicode string to return.
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| 351 | This Unicode string is the name of the
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| 352 | controller specified by ControllerHandle and
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| 353 | ChildHandle in the language specified by
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| 354 | Language, from the point of view of the driver
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| 355 | specified by This.
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| 356 |
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| 357 | @retval EFI_SUCCESS The Unicode string for the user-readable name in
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| 358 | the language specified by Language for the
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| 359 | driver specified by This was returned in
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| 360 | DriverName.
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| 361 |
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| 362 | @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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| 363 |
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| 364 | @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
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| 365 | EFI_HANDLE.
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| 366 |
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| 367 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 368 |
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| 369 | @retval EFI_INVALID_PARAMETER ControllerName is NULL.
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| 370 |
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| 371 | @retval EFI_UNSUPPORTED The driver specified by This is not currently
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| 372 | managing the controller specified by
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| 373 | ControllerHandle and ChildHandle.
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| 374 |
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| 375 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 376 | the language specified by Language.
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| 377 |
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| 378 | **/
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| 379 | EFI_STATUS
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| 380 | EFIAPI
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| 381 | Dhcp6ComponentNameGetControllerName (
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| 382 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 383 | IN EFI_HANDLE ControllerHandle,
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| 384 | IN EFI_HANDLE ChildHandle OPTIONAL,
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| 385 | IN CHAR8 *Language,
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| 386 | OUT CHAR16 **ControllerName
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| 387 | )
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| 388 | {
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| 389 | EFI_STATUS Status;
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| 390 | EFI_DHCP6_PROTOCOL *Dhcp6;
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| 391 |
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| 392 | //
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| 393 | // Only provide names for child handles.
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| 394 | //
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| 395 | if (ChildHandle == NULL) {
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| 396 | return EFI_UNSUPPORTED;
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| 397 | }
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| 398 |
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| 399 | //
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| 400 | // Make sure this driver produced ChildHandle
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| 401 | //
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| 402 | Status = EfiTestChildHandle (
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| 403 | ControllerHandle,
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| 404 | ChildHandle,
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| 405 | &gEfiUdp6ProtocolGuid
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| 406 | );
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| 407 | if (EFI_ERROR (Status)) {
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| 408 | return Status;
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| 409 | }
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| 410 |
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| 411 | //
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| 412 | // Retrieve an instance of a produced protocol from ChildHandle
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| 413 | //
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| 414 | Status = gBS->OpenProtocol (
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| 415 | ChildHandle,
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| 416 | &gEfiDhcp6ProtocolGuid,
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| 417 | (VOID **)&Dhcp6,
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| 418 | NULL,
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| 419 | NULL,
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| 420 | EFI_OPEN_PROTOCOL_GET_PROTOCOL
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| 421 | );
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| 422 | if (EFI_ERROR (Status)) {
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| 423 | return Status;
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| 424 | }
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| 425 |
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| 426 | //
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| 427 | // Update the component name for this child handle.
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| 428 | //
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| 429 | Status = UpdateName (Dhcp6);
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| 430 | if (EFI_ERROR (Status)) {
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| 431 | return Status;
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| 432 | }
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| 433 |
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| 434 | return LookupUnicodeString2 (
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| 435 | Language,
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| 436 | This->SupportedLanguages,
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| 437 | gDhcp6ControllerNameTable,
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| 438 | ControllerName,
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| 439 | (BOOLEAN)(This == &gDhcp6ComponentName)
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| 440 | );
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| 441 | }
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| 442 |
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