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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sandbox/win/src/app_container.h"
#include <Sddl.h>
#include <vector>
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/win/startup_information.h"
#include "sandbox/win/src/internal_types.h"
namespace {
// Converts the passed in sid string to a PSID that must be relased with
// LocalFree.
PSID ConvertSid(const string16& sid) {
PSID local_sid;
if (!ConvertStringSidToSid(sid.c_str(), &local_sid))
return NULL;
return local_sid;
}
} // namespace
namespace sandbox {
AppContainerAttributes::AppContainerAttributes() {
memset(&capabilities_, 0, sizeof(capabilities_));
}
AppContainerAttributes::~AppContainerAttributes() {
for (size_t i = 0; i < attributes_.size(); i++)
LocalFree(attributes_[i].Sid);
LocalFree(capabilities_.AppContainerSid);
}
ResultCode AppContainerAttributes::SetAppContainer(
const string16& app_container_sid,
const std::vector<string16>& capabilities) {
DCHECK(!capabilities_.AppContainerSid);
DCHECK(attributes_.empty());
capabilities_.AppContainerSid = ConvertSid(app_container_sid);
if (!capabilities_.AppContainerSid)
return SBOX_ERROR_INVALID_APP_CONTAINER;
for (size_t i = 0; i < capabilities.size(); i++) {
SID_AND_ATTRIBUTES sid_and_attributes;
sid_and_attributes.Sid = ConvertSid(capabilities[i]);
if (!sid_and_attributes.Sid)
return SBOX_ERROR_INVALID_CAPABILITY;
sid_and_attributes.Attributes = SE_GROUP_ENABLED;
attributes_.push_back(sid_and_attributes);
}
if (capabilities.size()) {
capabilities_.CapabilityCount = static_cast<DWORD>(capabilities.size());
capabilities_.Capabilities = &attributes_[0];
}
return SBOX_ALL_OK;
}
ResultCode AppContainerAttributes::ShareForStartup(
base::win::StartupInformation* startup_information) const {
// The only thing we support so far is an AppContainer.
if (!capabilities_.AppContainerSid)
return SBOX_ERROR_INVALID_APP_CONTAINER;
if (!startup_information->UpdateProcThreadAttribute(
PROC_THREAD_ATTRIBUTE_SECURITY_CAPABILITIES,
const_cast<SECURITY_CAPABILITIES*>(&capabilities_),
sizeof(capabilities_))) {
DPLOG(ERROR) << "Failed UpdateProcThreadAttribute";
return SBOX_ERROR_CANNOT_INIT_APPCONTAINER;
}
return SBOX_ALL_OK;
}
bool AppContainerAttributes::HasAppContainer() const {
return (capabilities_.AppContainerSid != NULL);
}
ResultCode CreateAppContainer(const string16& sid, const string16& name) {
PSID local_sid;
if (!ConvertStringSidToSid(sid.c_str(), &local_sid))
return SBOX_ERROR_INVALID_APP_CONTAINER;
typedef HRESULT (WINAPI* AppContainerRegisterSidPtr)(PSID sid,
LPCWSTR moniker,
LPCWSTR display_name);
static AppContainerRegisterSidPtr AppContainerRegisterSid = NULL;
if (!AppContainerRegisterSid) {
HMODULE module = GetModuleHandle(kKerneldllName);
AppContainerRegisterSid = reinterpret_cast<AppContainerRegisterSidPtr>(
GetProcAddress(module, "AppContainerRegisterSid"));
}
ResultCode operation_result = SBOX_ERROR_GENERIC;
if (AppContainerRegisterSid) {
HRESULT rv = AppContainerRegisterSid(local_sid, name.c_str(), name.c_str());
if (SUCCEEDED(rv))
operation_result = SBOX_ALL_OK;
else
DLOG(ERROR) << "AppContainerRegisterSid error:" << std::hex << rv;
}
LocalFree(local_sid);
return operation_result;
}
ResultCode DeleteAppContainer(const string16& sid) {
PSID local_sid;
if (!ConvertStringSidToSid(sid.c_str(), &local_sid))
return SBOX_ERROR_INVALID_APP_CONTAINER;
typedef HRESULT (WINAPI* AppContainerUnregisterSidPtr)(PSID sid);
static AppContainerUnregisterSidPtr AppContainerUnregisterSid = NULL;
if (!AppContainerUnregisterSid) {
HMODULE module = GetModuleHandle(kKerneldllName);
AppContainerUnregisterSid = reinterpret_cast<AppContainerUnregisterSidPtr>(
GetProcAddress(module, "AppContainerUnregisterSid"));
}
ResultCode operation_result = SBOX_ERROR_GENERIC;
if (AppContainerUnregisterSid) {
HRESULT rv = AppContainerUnregisterSid(local_sid);
if (SUCCEEDED(rv))
operation_result = SBOX_ALL_OK;
else
DLOG(ERROR) << "AppContainerUnregisterSid error:" << std::hex << rv;
}
LocalFree(local_sid);
return operation_result;
}
string16 LookupAppContainer(const string16& sid) {
PSID local_sid;
if (!ConvertStringSidToSid(sid.c_str(), &local_sid))
return string16();
typedef HRESULT (WINAPI* AppContainerLookupMonikerPtr)(PSID sid,
LPWSTR* moniker);
typedef BOOLEAN (WINAPI* AppContainerFreeMemoryPtr)(void* ptr);
static AppContainerLookupMonikerPtr AppContainerLookupMoniker = NULL;
static AppContainerFreeMemoryPtr AppContainerFreeMemory = NULL;
if (!AppContainerLookupMoniker || !AppContainerFreeMemory) {
HMODULE module = GetModuleHandle(kKerneldllName);
AppContainerLookupMoniker = reinterpret_cast<AppContainerLookupMonikerPtr>(
GetProcAddress(module, "AppContainerLookupMoniker"));
AppContainerFreeMemory = reinterpret_cast<AppContainerFreeMemoryPtr>(
GetProcAddress(module, "AppContainerFreeMemory"));
}
if (!AppContainerLookupMoniker || !AppContainerFreeMemory)
return string16();
wchar_t* buffer = NULL;
HRESULT rv = AppContainerLookupMoniker(local_sid, &buffer);
if (FAILED(rv))
return string16();
string16 name(buffer);
if (!AppContainerFreeMemory(buffer))
NOTREACHED();
return name;
}
} // namespace sandbox
|
