1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/** @file
The module entry point for SecureBoot configuration module.
Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "SecureBootConfigImpl.h"
/**
The entry point for SecureBoot configuration driver.
@param[in] ImageHandle The image handle of the driver.
@param[in] SystemTable The system table.
@retval EFI_ALREADY_STARTED The driver already exists in system.
@retval EFI_OUT_OF_RESOURCES Fail to execute entry point due to lack of resources.
@retval EFI_SUCCES All the related protocols are installed on the driver.
@retval Others Fail to get the SecureBootEnable variable.
**/
EFI_STATUS
EFIAPI
SecureBootConfigDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData;
//
// If already started, return.
//
Status = gBS->OpenProtocol (
ImageHandle,
&gEfiCallerIdGuid,
NULL,
ImageHandle,
ImageHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (!EFI_ERROR (Status)) {
return EFI_ALREADY_STARTED;
}
//
// Create a private data structure.
//
PrivateData = AllocateCopyPool (sizeof (SECUREBOOT_CONFIG_PRIVATE_DATA), &mSecureBootConfigPrivateDateTemplate);
if (PrivateData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
//
// Install SecureBoot configuration form
//
Status = InstallSecureBootConfigForm (PrivateData);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
//
// Install private GUID.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&ImageHandle,
&gEfiCallerIdGuid,
PrivateData,
NULL
);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
return EFI_SUCCESS;
ErrorExit:
if (PrivateData != NULL) {
UninstallSecureBootConfigForm (PrivateData);
}
return Status;
}
/**
Unload the SecureBoot configuration form.
@param[in] ImageHandle The driver's image handle.
@retval EFI_SUCCESS The SecureBoot configuration form is unloaded.
@retval Others Failed to unload the form.
**/
EFI_STATUS
EFIAPI
SecureBootConfigDriverUnload (
IN EFI_HANDLE ImageHandle
)
{
EFI_STATUS Status;
SECUREBOOT_CONFIG_PRIVATE_DATA *PrivateData;
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiCallerIdGuid,
(VOID **) &PrivateData
);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (PrivateData->Signature == SECUREBOOT_CONFIG_PRIVATE_DATA_SIGNATURE);
gBS->UninstallMultipleProtocolInterfaces (
&ImageHandle,
&gEfiCallerIdGuid,
PrivateData,
NULL
);
UninstallSecureBootConfigForm (PrivateData);
return EFI_SUCCESS;
}
|
