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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
#include "precomp.h"
#define DNC_ENTRY_TYPEW L"WixToolset.Dnc.Host.BootstrapperApplicationFactory"
#define DNC_STATIC_ENTRY_METHODW L"CreateBAFactory"
#define DNC_STATIC_ENTRY_DELEGATEW L"WixToolset.Dnc.Host.StaticEntryDelegate"
// https://github.com/dotnet/runtime/blob/master/src/installer/corehost/error_codes.h
#define InvalidArgFailure 0x80008081
#define HostApiBufferTooSmall 0x80008098
#define HostApiUnsupportedVersion 0x800080a2
// internal function declarations
static HRESULT GetHostfxrPath(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzNativeHostPath
);
static HRESULT LoadHostfxr(
__in HOSTFXR_STATE* pState
);
static HRESULT InitializeHostfxr(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzManagedHostPath,
__in LPCWSTR wzDepsJsonPath,
__in LPCWSTR wzRuntimeConfigPath
);
static HRESULT InitializeCoreClr(
__in HOSTFXR_STATE* pState
);
// function definitions
HRESULT DnchostLoadRuntime(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzNativeHostPath,
__in LPCWSTR wzManagedHostPath,
__in LPCWSTR wzDepsJsonPath,
__in LPCWSTR wzRuntimeConfigPath
)
{
HRESULT hr = S_OK;
hr = GetHostfxrPath(pState, wzNativeHostPath);
BalExitOnFailure(hr, "Failed to find hostfxr.");
hr = LoadHostfxr(pState);
BalExitOnFailure(hr, "Failed to load hostfxr.");
hr = InitializeHostfxr(pState, wzManagedHostPath, wzDepsJsonPath, wzRuntimeConfigPath);
BalExitOnFailure(hr, "Failed to initialize hostfxr.");
hr = InitializeCoreClr(pState);
BalExitOnFailure(hr, "Failed to initialize coreclr.");
LExit:
return hr;
}
HRESULT DnchostCreateFactory(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzBaFactoryAssemblyName,
__out IBootstrapperApplicationFactory** ppAppFactory
)
{
HRESULT hr = S_OK;
PFNCREATEBAFACTORY pfnCreateBAFactory = NULL;
LPWSTR sczEntryType = NULL;
LPWSTR sczEntryDelegate = NULL;
LPSTR sczBaFactoryAssemblyName = NULL;
hr = StrAllocFormatted(&sczEntryType, L"%ls,%ls", DNC_ENTRY_TYPEW, wzBaFactoryAssemblyName);
BalExitOnFailure(hr, "Failed to format entry type.");
hr = StrAllocFormatted(&sczEntryDelegate, L"%ls,%ls", DNC_STATIC_ENTRY_DELEGATEW, wzBaFactoryAssemblyName);
BalExitOnFailure(hr, "Failed to format entry delegate.");
hr = pState->pfnGetFunctionPointer(
sczEntryType,
DNC_STATIC_ENTRY_METHODW,
sczEntryDelegate,
NULL,
NULL,
reinterpret_cast<void**>(&pfnCreateBAFactory));
BalExitOnFailure(hr, "Failed to create delegate through GetFunctionPointer.");
*ppAppFactory = pfnCreateBAFactory();
LExit:
ReleaseStr(sczEntryType);
ReleaseStr(sczEntryDelegate);
ReleaseStr(sczBaFactoryAssemblyName);
return hr;
}
static HRESULT GetHostfxrPath(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzNativeHostPath
)
{
HRESULT hr = S_OK;
get_hostfxr_parameters getHostfxrParameters = { };
int nrc = 0;
size_t cchHostFxrPath = MAX_PATH;
getHostfxrParameters.size = sizeof(get_hostfxr_parameters);
getHostfxrParameters.assembly_path = wzNativeHostPath;
// get_hostfxr_path does a full search on every call, so
// minimize the number of calls
// need to loop
for (;;)
{
cchHostFxrPath *= 2;
hr = StrAlloc(&pState->sczHostfxrPath, cchHostFxrPath);
BalExitOnFailure(hr, "Failed to allocate hostFxrPath.");
nrc = get_hostfxr_path(pState->sczHostfxrPath, &cchHostFxrPath, &getHostfxrParameters);
if (HostApiBufferTooSmall != nrc)
{
break;
}
}
if (0 != nrc)
{
BalExitOnFailure(hr = nrc, "GetHostfxrPath failed");
}
LExit:
return hr;
}
static HRESULT LoadHostfxr(
__in HOSTFXR_STATE* pState
)
{
HRESULT hr = S_OK;
HMODULE hHostfxr;
hHostfxr = ::LoadLibraryExW(pState->sczHostfxrPath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
BalExitOnNullWithLastError(hHostfxr, hr, "Failed to load hostfxr from '%ls'.", pState->sczHostfxrPath);
pState->pfnHostfxrInitializeForApp = reinterpret_cast<hostfxr_initialize_for_dotnet_command_line_fn>(::GetProcAddress(hHostfxr, "hostfxr_initialize_for_dotnet_command_line"));
BalExitOnNullWithLastError(pState->pfnHostfxrInitializeForApp, hr, "Failed to get procedure address for hostfxr_initialize_for_dotnet_command_line.");
pState->pfnHostfxrSetErrorWriter = reinterpret_cast<hostfxr_set_error_writer_fn>(::GetProcAddress(hHostfxr, "hostfxr_set_error_writer"));
BalExitOnNullWithLastError(pState->pfnHostfxrSetErrorWriter, hr, "Failed to get procedure address for hostfxr_set_error_writer.");
pState->pfnHostfxrClose = reinterpret_cast<hostfxr_close_fn>(::GetProcAddress(hHostfxr, "hostfxr_close"));
BalExitOnNullWithLastError(pState->pfnHostfxrClose, hr, "Failed to get procedure address for hostfxr_close.");
pState->pfnHostfxrGetRuntimeDelegate = reinterpret_cast<hostfxr_get_runtime_delegate_fn>(::GetProcAddress(hHostfxr, "hostfxr_get_runtime_delegate"));
BalExitOnNullWithLastError(pState->pfnHostfxrGetRuntimeDelegate, hr, "Failed to get procedure address for hostfxr_get_runtime_delegate.");
LExit:
// Never unload the module since it isn't meant to be unloaded.
return hr;
}
static void HOSTFXR_CALLTYPE DnchostErrorWriter(
__in LPCWSTR wzMessage
)
{
BalLog(BOOTSTRAPPER_LOG_LEVEL_ERROR, "error from hostfxr: %ls", wzMessage);
}
static HRESULT InitializeHostfxr(
__in HOSTFXR_STATE* pState,
__in LPCWSTR wzManagedHostPath,
__in LPCWSTR wzDepsJsonPath,
__in LPCWSTR wzRuntimeConfigPath
)
{
HRESULT hr = S_OK;
pState->pfnHostfxrSetErrorWriter(static_cast<hostfxr_error_writer_fn>(&DnchostErrorWriter));
LPCWSTR argv[] = {
L"exec",
L"--depsfile",
wzDepsJsonPath,
L"--runtimeconfig",
wzRuntimeConfigPath,
wzManagedHostPath,
};
hr = pState->pfnHostfxrInitializeForApp(sizeof(argv)/sizeof(LPWSTR), argv, NULL, &pState->hostContextHandle);
BalExitOnFailure(hr, "HostfxrInitializeForApp failed");
LExit:
return hr;
}
static HRESULT InitializeCoreClr(
__in HOSTFXR_STATE* pState
)
{
HRESULT hr = S_OK;
hr = pState->pfnHostfxrGetRuntimeDelegate(pState->hostContextHandle, hdt_get_function_pointer, reinterpret_cast<void**>(&pState->pfnGetFunctionPointer));
if (InvalidArgFailure == hr || // old versions of hostfxr don't allow calling GetRuntimeDelegate from InitializeForApp.
HostApiUnsupportedVersion == hr) // hdt_get_function_pointer was added in .NET 5.
{
BalExitOnFailure(hr, "HostfxrGetRuntimeDelegate failed, most likely because the target framework is older than .NET 5.");
}
else
{
BalExitOnFailure(hr, "HostfxrGetRuntimeDelegate failed");
}
LExit:
return hr;
}
|
