| 1 | /** @file
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| 2 |
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| 3 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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| 4 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 5 |
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| 6 | **/
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| 7 |
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| 8 | #include "Dhcp4Impl.h"
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| 9 |
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| 10 | //
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| 11 | // EFI Component Name Functions
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| 12 | //
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| 13 |
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| 14 | /**
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| 15 | Retrieves a Unicode string that is the user readable name of the driver.
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| 16 |
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| 17 | This function retrieves the user readable name of a driver in the form of a
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| 18 | Unicode string. If the driver specified by This has a user readable name in
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| 19 | the language specified by Language, then a pointer to the driver name is
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| 20 | returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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| 21 | by This does not support the language specified by Language,
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| 22 | then EFI_UNSUPPORTED is returned.
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| 23 |
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| 24 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 25 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 26 |
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| 27 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 28 | array indicating the language. This is the
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| 29 | language of the driver name that the caller is
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| 30 | requesting, and it must match one of the
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| 31 | languages specified in SupportedLanguages. The
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| 32 | number of languages supported by a driver is up
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| 33 | to the driver writer. Language is specified
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| 34 | in RFC 4646 or ISO 639-2 language code format.
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| 35 |
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| 36 | @param[out] DriverName A pointer to the Unicode string to return.
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| 37 | This Unicode string is the name of the
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| 38 | driver specified by This in the language
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| 39 | specified by Language.
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| 40 |
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| 41 | @retval EFI_SUCCESS The Unicode string for the Driver specified by
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| 42 | This and the language specified by Language was
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| 43 | returned in DriverName.
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| 44 |
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| 45 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 46 |
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| 47 | @retval EFI_INVALID_PARAMETER DriverName is NULL.
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| 48 |
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| 49 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 50 | the language specified by Language.
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| 51 |
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| 52 | **/
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| 53 | EFI_STATUS
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| 54 | EFIAPI
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| 55 | DhcpComponentNameGetDriverName (
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| 56 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 57 | IN CHAR8 *Language,
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| 58 | OUT CHAR16 **DriverName
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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 wish 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 wishes 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 | DhcpComponentNameGetControllerName (
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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 | // EFI Component Name Protocol
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| 141 | //
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| 142 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gDhcp4ComponentName = {
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| 143 | DhcpComponentNameGetDriverName,
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| 144 | DhcpComponentNameGetControllerName,
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| 145 | "eng"
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| 146 | };
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| 147 |
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| 148 | //
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| 149 | // EFI Component Name 2 Protocol
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| 150 | //
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| 151 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gDhcp4ComponentName2 = {
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| 152 | (EFI_COMPONENT_NAME2_GET_DRIVER_NAME)DhcpComponentNameGetDriverName,
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| 153 | (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME)DhcpComponentNameGetControllerName,
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| 154 | "en"
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| 155 | };
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| 156 |
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| 157 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mDhcpDriverNameTable[] = {
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| 158 | {
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| 159 | "eng;en",
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| 160 | L"DHCP Protocol Driver"
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| 161 | },
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| 162 | {
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| 163 | NULL,
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| 164 | NULL
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| 165 | }
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| 166 | };
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| 167 |
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| 168 | GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE *gDhcpControllerNameTable = NULL;
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| 169 |
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| 170 | CHAR16 *mDhcp4ControllerName[] = {
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| 171 | L"DHCPv4 (State=0, Stopped)",
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| 172 | L"DHCPv4 (State=1, Init)",
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| 173 | L"DHCPv4 (State=2, Selecting)",
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| 174 | L"DHCPv4 (State=3, Requesting)",
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| 175 | L"DHCPv4 (State=4, Bound)",
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| 176 | L"DHCPv4 (State=5, Renewing)",
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| 177 | L"DHCPv4 (State=6, Rebinding)",
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| 178 | L"DHCPv4 (State=7, InitReboot)",
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| 179 | L"DHCPv4 (State=8, Rebooting)"
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| 180 | };
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| 181 |
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| 182 | /**
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| 183 | Retrieves a Unicode string that is the user readable name of the driver.
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| 184 |
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| 185 | This function retrieves the user readable name of a driver in the form of a
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| 186 | Unicode string. If the driver specified by This has a user readable name in
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| 187 | the language specified by Language, then a pointer to the driver name is
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| 188 | returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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| 189 | by This does not support the language specified by Language,
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| 190 | then EFI_UNSUPPORTED is returned.
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| 191 |
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| 192 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 193 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 194 |
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| 195 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 196 | array indicating the language. This is the
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| 197 | language of the driver name that the caller is
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| 198 | requesting, and it must match one of the
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| 199 | languages specified in SupportedLanguages. The
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| 200 | number of languages supported by a driver is up
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| 201 | to the driver writer. Language is specified
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| 202 | in RFC 4646 or ISO 639-2 language code format.
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| 203 |
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| 204 | @param[out] DriverName A pointer to the Unicode string to return.
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| 205 | This Unicode string is the name of the
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| 206 | driver specified by This in the language
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| 207 | specified by Language.
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| 208 |
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| 209 | @retval EFI_SUCCESS The Unicode string for the Driver specified by
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| 210 | This and the language specified by Language was
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| 211 | returned in DriverName.
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| 212 |
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| 213 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 214 |
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| 215 | @retval EFI_INVALID_PARAMETER DriverName is NULL.
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| 216 |
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| 217 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 218 | the language specified by Language.
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| 219 |
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| 220 | **/
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| 221 | EFI_STATUS
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| 222 | EFIAPI
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| 223 | DhcpComponentNameGetDriverName (
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| 224 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 225 | IN CHAR8 *Language,
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| 226 | OUT CHAR16 **DriverName
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| 227 | )
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| 228 | {
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| 229 | return LookupUnicodeString2 (
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| 230 | Language,
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| 231 | This->SupportedLanguages,
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| 232 | mDhcpDriverNameTable,
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| 233 | DriverName,
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| 234 | (BOOLEAN)(This == &gDhcp4ComponentName)
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| 235 | );
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| 236 | }
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| 237 |
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| 238 | /**
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| 239 | Update the component name for the Dhcp4 child handle.
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| 240 |
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| 241 | @param Dhcp4[in] A pointer to the EFI_DHCP4_PROTOCOL.
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| 242 |
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| 243 |
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| 244 | @retval EFI_SUCCESS Update the ControllerNameTable of this instance successfully.
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| 245 | @retval EFI_INVALID_PARAMETER The input parameter is invalid.
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| 246 | @retval EFI_DEVICE_ERROR DHCP is in unknown state.
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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_DHCP4_PROTOCOL *Dhcp4
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| 252 | )
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| 253 | {
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| 254 | EFI_STATUS Status;
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| 255 | EFI_DHCP4_MODE_DATA Dhcp4ModeData;
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| 256 |
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| 257 | if (Dhcp4 == NULL) {
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| 258 | return EFI_INVALID_PARAMETER;
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| 259 | }
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| 260 |
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| 261 | //
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| 262 | // Format the child name into the string buffer.
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| 263 | //
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| 264 | Status = Dhcp4->GetModeData (Dhcp4, &Dhcp4ModeData);
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| 265 | if (EFI_ERROR (Status)) {
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| 266 | return Status;
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| 267 | }
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| 268 |
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| 269 | if (gDhcpControllerNameTable != NULL) {
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| 270 | FreeUnicodeStringTable (gDhcpControllerNameTable);
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| 271 | gDhcpControllerNameTable = NULL;
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| 272 | }
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| 273 |
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| 274 | if (Dhcp4ModeData.State > Dhcp4Rebooting) {
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| 275 | return EFI_DEVICE_ERROR;
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| 276 | }
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| 277 |
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| 278 | Status = AddUnicodeString2 (
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| 279 | "eng",
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| 280 | gDhcp4ComponentName.SupportedLanguages,
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| 281 | &gDhcpControllerNameTable,
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| 282 | mDhcp4ControllerName[Dhcp4ModeData.State],
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| 283 | TRUE
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| 284 | );
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| 285 | if (EFI_ERROR (Status)) {
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| 286 | return Status;
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| 287 | }
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| 288 |
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| 289 | return AddUnicodeString2 (
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| 290 | "en",
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| 291 | gDhcp4ComponentName2.SupportedLanguages,
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| 292 | &gDhcpControllerNameTable,
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| 293 | mDhcp4ControllerName[Dhcp4ModeData.State],
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| 294 | FALSE
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| 295 | );
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| 296 | }
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| 297 |
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| 298 | /**
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| 299 | Retrieves a Unicode string that is the user readable name of the controller
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| 300 | that is being managed by a driver.
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| 301 |
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| 302 | This function retrieves the user readable name of the controller specified by
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| 303 | ControllerHandle and ChildHandle in the form of a Unicode string. If the
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| 304 | driver specified by This has a user readable name in the language specified by
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| 305 | Language, then a pointer to the controller name is returned in ControllerName,
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| 306 | and EFI_SUCCESS is returned. If the driver specified by This is not currently
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| 307 | managing the controller specified by ControllerHandle and ChildHandle,
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| 308 | then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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| 309 | support the language specified by Language, then EFI_UNSUPPORTED is returned.
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| 310 |
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| 311 | @param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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| 312 | EFI_COMPONENT_NAME_PROTOCOL instance.
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| 313 |
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| 314 | @param[in] ControllerHandle The handle of a controller that the driver
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| 315 | specified by This is managing. This handle
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| 316 | specifies the controller whose name is to be
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| 317 | returned.
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| 318 |
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| 319 | @param[in] ChildHandle The handle of the child controller to retrieve
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| 320 | the name of. This is an optional parameter that
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| 321 | may be NULL. It will be NULL for device
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| 322 | drivers. It will also be NULL for a bus drivers
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| 323 | that wish to retrieve the name of the bus
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| 324 | controller. It will not be NULL for a bus
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| 325 | driver that wishes to retrieve the name of a
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| 326 | child controller.
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| 327 |
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| 328 | @param[in] Language A pointer to a Null-terminated ASCII string
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| 329 | array indicating the language. This is the
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| 330 | language of the driver name that the caller is
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| 331 | requesting, and it must match one of the
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| 332 | languages specified in SupportedLanguages. The
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| 333 | number of languages supported by a driver is up
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| 334 | to the driver writer. Language is specified in
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| 335 | RFC 4646 or ISO 639-2 language code format.
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| 336 |
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| 337 | @param[out] ControllerName A pointer to the Unicode string to return.
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| 338 | This Unicode string is the name of the
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| 339 | controller specified by ControllerHandle and
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| 340 | ChildHandle in the language specified by
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| 341 | Language from the point of view of the driver
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| 342 | specified by This.
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| 343 |
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| 344 | @retval EFI_SUCCESS The Unicode string for the user readable name in
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| 345 | the language specified by Language for the
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| 346 | driver specified by This was returned in
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| 347 | DriverName.
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| 348 |
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| 349 | @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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| 350 |
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| 351 | @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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| 352 | EFI_HANDLE.
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| 353 |
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| 354 | @retval EFI_INVALID_PARAMETER Language is NULL.
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| 355 |
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| 356 | @retval EFI_INVALID_PARAMETER ControllerName is NULL.
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| 357 |
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| 358 | @retval EFI_UNSUPPORTED The driver specified by This is not currently
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| 359 | managing the controller specified by
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| 360 | ControllerHandle and ChildHandle.
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| 361 |
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| 362 | @retval EFI_UNSUPPORTED The driver specified by This does not support
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| 363 | the language specified by Language.
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| 364 |
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| 365 | **/
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| 366 | EFI_STATUS
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| 367 | EFIAPI
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| 368 | DhcpComponentNameGetControllerName (
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| 369 | IN EFI_COMPONENT_NAME_PROTOCOL *This,
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| 370 | IN EFI_HANDLE ControllerHandle,
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| 371 | IN EFI_HANDLE ChildHandle OPTIONAL,
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| 372 | IN CHAR8 *Language,
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| 373 | OUT CHAR16 **ControllerName
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| 374 | )
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| 375 | {
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| 376 | EFI_STATUS Status;
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| 377 | EFI_DHCP4_PROTOCOL *Dhcp4;
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| 378 |
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| 379 | //
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| 380 | // Only provide names for child handles.
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| 381 | //
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| 382 | if (ChildHandle == NULL) {
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| 383 | return EFI_UNSUPPORTED;
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| 384 | }
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| 385 |
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| 386 | //
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| 387 | // Make sure this driver produced ChildHandle
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| 388 | //
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| 389 | Status = EfiTestChildHandle (
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| 390 | ControllerHandle,
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| 391 | ChildHandle,
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| 392 | &gEfiUdp4ProtocolGuid
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| 393 | );
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| 394 | if (EFI_ERROR (Status)) {
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| 395 | return Status;
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| 396 | }
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| 397 |
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| 398 | //
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| 399 | // Retrieve an instance of a produced protocol from ChildHandle
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| 400 | //
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| 401 | Status = gBS->OpenProtocol (
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| 402 | ChildHandle,
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| 403 | &gEfiDhcp4ProtocolGuid,
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| 404 | (VOID **)&Dhcp4,
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| 405 | NULL,
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| 406 | NULL,
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| 407 | EFI_OPEN_PROTOCOL_GET_PROTOCOL
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| 408 | );
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| 409 | if (EFI_ERROR (Status)) {
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| 410 | return Status;
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| 411 | }
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| 412 |
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| 413 | //
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| 414 | // Update the component name for this child handle.
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| 415 | //
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| 416 | Status = UpdateName (Dhcp4);
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| 417 | if (EFI_ERROR (Status)) {
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| 418 | return Status;
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| 419 | }
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| 420 |
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| 421 | return LookupUnicodeString2 (
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| 422 | Language,
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| 423 | This->SupportedLanguages,
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| 424 | gDhcpControllerNameTable,
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| 425 | ControllerName,
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| 426 | (BOOLEAN)(This == &gDhcp4ComponentName)
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| 427 | );
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|---|
| 428 | }
|
|---|
