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4c5a5e0c | 1 | /** @file\r |
2 | Implementation for EFI iSCSI Initiator Name Protocol.\r | |
3 | \r | |
4 | Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "IScsiImpl.h"\r | |
16 | \r | |
17 | EFI_ISCSI_INITIATOR_NAME_PROTOCOL gIScsiInitiatorName = {\r | |
18 | IScsiGetInitiatorName,\r | |
19 | IScsiSetInitiatorName\r | |
20 | };\r | |
21 | \r | |
22 | \r | |
23 | /**\r | |
24 | Retrieves the current set value of iSCSI Initiator Name.\r | |
25 | \r | |
26 | @param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL\r | |
27 | instance.\r | |
28 | @param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer /\r | |
29 | Actual size of the variable data buffer.\r | |
30 | @param[out] Buffer Pointer to the buffer for data to be read.\r | |
31 | The data is a null-terminated UTF-8 encoded string.\r | |
32 | The maximum length is 223 characters, including the null-terminator.\r | |
33 | \r | |
34 | @retval EFI_SUCCESS Data was successfully retrieved into the provided\r | |
35 | buffer and the BufferSize was sufficient to handle\r | |
36 | the iSCSI initiator name.\r | |
37 | @retval EFI_BUFFER_TOO_SMALL BufferSize is too small for the result. BufferSize\r | |
38 | will be updated with the size required to complete\r | |
39 | the request. Buffer will not be affected.\r | |
40 | @retval EFI_INVALID_PARAMETER BufferSize is NULL. BufferSize and Buffer will not\r | |
41 | be affected.\r | |
42 | @retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be\r | |
43 | affected.\r | |
44 | @retval EFI_DEVICE_ERROR The iSCSI initiator name could not be retrieved\r | |
45 | due to a hardware error.\r | |
46 | \r | |
47 | **/\r | |
48 | EFI_STATUS\r | |
49 | EFIAPI\r | |
50 | IScsiGetInitiatorName (\r | |
51 | IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,\r | |
52 | IN OUT UINTN *BufferSize,\r | |
53 | OUT VOID *Buffer\r | |
54 | )\r | |
55 | {\r | |
56 | EFI_STATUS Status;\r | |
57 | \r | |
58 | if ((BufferSize == NULL) || (Buffer == NULL)) {\r | |
59 | return EFI_INVALID_PARAMETER;\r | |
60 | }\r | |
61 | \r | |
62 | Status = gRT->GetVariable (\r | |
63 | ISCSI_INITIATOR_NAME_VAR_NAME,\r | |
64 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
65 | NULL,\r | |
66 | BufferSize,\r | |
67 | Buffer\r | |
68 | );\r | |
69 | \r | |
70 | return Status;\r | |
71 | }\r | |
72 | \r | |
73 | \r | |
74 | /**\r | |
75 | Sets the iSSI Initiator Name.\r | |
76 | \r | |
77 | @param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL\r | |
78 | instance.\r | |
79 | @param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer.\r | |
80 | @param[in] Buffer Pointer to the buffer for data to be written.\r | |
81 | The data is a null-terminated UTF-8 encoded string.\r | |
82 | The maximum length is 223 characters, including the null-terminator.\r | |
83 | \r | |
84 | @retval EFI_SUCCESS Data was successfully stored by the protocol.\r | |
85 | @retval EFI_UNSUPPORTED Platform policies do not allow for data to be\r | |
86 | written.\r | |
87 | @retval EFI_INVALID_PARAMETER BufferSize exceeds the maximum allowed limit.\r | |
88 | BufferSize will be updated with the maximum size\r | |
89 | required to complete the request.\r | |
90 | @retval EFI_INVALID_PARAMETER Buffersize is NULL. BufferSize and Buffer will not\r | |
91 | be affected.\r | |
92 | @retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be\r | |
93 | affected.\r | |
94 | @retval EFI_DEVICE_ERROR The data could not be stored due to a hardware\r | |
95 | error.\r | |
96 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the data\r | |
97 | @retval EFI_PROTOCOL_ERROR Input iSCSI initiator name does not adhere to RFC\r | |
98 | 3720\r | |
99 | \r | |
100 | **/\r | |
101 | EFI_STATUS\r | |
102 | EFIAPI\r | |
103 | IScsiSetInitiatorName (\r | |
104 | IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,\r | |
105 | IN OUT UINTN *BufferSize,\r | |
106 | IN VOID *Buffer\r | |
107 | )\r | |
108 | {\r | |
109 | EFI_STATUS Status;\r | |
110 | \r | |
111 | if ((BufferSize == NULL) || (Buffer == NULL)) {\r | |
112 | return EFI_INVALID_PARAMETER;\r | |
113 | }\r | |
114 | \r | |
115 | if (*BufferSize > ISCSI_NAME_MAX_SIZE) {\r | |
116 | *BufferSize = ISCSI_NAME_MAX_SIZE;\r | |
117 | return EFI_INVALID_PARAMETER;\r | |
118 | }\r | |
119 | //\r | |
120 | // Only support iqn iSCSI names.\r | |
121 | //\r | |
122 | Status = IScsiNormalizeName ((CHAR8 *) Buffer, *BufferSize - 1);\r | |
123 | if (EFI_ERROR (Status)) {\r | |
124 | return Status;\r | |
125 | }\r | |
126 | \r | |
127 | Status = gRT->SetVariable (\r | |
128 | ISCSI_INITIATOR_NAME_VAR_NAME,\r | |
129 | &gEfiIScsiInitiatorNameProtocolGuid,\r | |
130 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
131 | *BufferSize,\r | |
132 | Buffer\r | |
133 | );\r | |
134 | \r | |
135 | return Status;\r | |
136 | }\r |