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setupapi: Add helper functions to get the path of the device instance keys. 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2018-07-29 20:26:26 -05:00 committed by Alexandre Julliard
parent 11d09c299e
commit ad9e1883ef
1 changed files with 96 additions and 10 deletions
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106
dlls/setupapi/devinst.c
View File

@ -201,8 +201,75 @@ static void SETUPDI_GuidToString(const GUID *guid, LPWSTR guidStr)
guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
}
static WCHAR *get_iface_key_path(SP_DEVICE_INTERFACE_DATA *iface)
{
const WCHAR slashW[] = {'\\',0};
struct InterfaceInfo *info = (struct InterfaceInfo *)iface->Reserved;
WCHAR *path, *ptr;
size_t len = strlenW(DeviceClasses) + 1 + 38 + 1 + strlenW(info->symbolicLink);
if (!(path = heap_alloc((len + 1) * sizeof(WCHAR))))
{
SetLastError(ERROR_OUTOFMEMORY);
return NULL;
}
strcpyW(path, DeviceClasses);
strcatW(path, slashW);
SETUPDI_GuidToString(&iface->InterfaceClassGuid, path + strlenW(path));
strcatW(path, slashW);
ptr = path + strlenW(path);
strcatW(path, info->symbolicLink);
if (strlenW(info->symbolicLink) > 3)
ptr[0] = ptr[1] = ptr[3] = '#';
ptr = strchrW(ptr, '\\');
if (ptr) *ptr = 0;
return path;
}
static WCHAR *get_refstr_key_path(SP_DEVICE_INTERFACE_DATA *iface)
{
const WCHAR hashW[] = {'#',0};
const WCHAR slashW[] = {'\\',0};
struct InterfaceInfo *info = (struct InterfaceInfo *)iface->Reserved;
WCHAR *path, *ptr;
size_t len = strlenW(DeviceClasses) + 1 + 38 + 1 + strlenW(info->symbolicLink) + 1 + 1;
if (info->referenceString)
len += strlenW(info->referenceString);
if (!(path = heap_alloc((len + 1) * sizeof(WCHAR))))
{
SetLastError(ERROR_OUTOFMEMORY);
return NULL;
}
strcpyW(path, DeviceClasses);
strcatW(path, slashW);
SETUPDI_GuidToString(&iface->InterfaceClassGuid, path + strlenW(path));
strcatW(path, slashW);
ptr = path + strlenW(path);
strcatW(path, info->symbolicLink);
if (strlenW(info->symbolicLink) > 3)
ptr[0] = ptr[1] = ptr[3] = '#';
ptr = strchrW(ptr, '\\');
if (ptr) *ptr = 0;
strcatW(path, slashW);
strcatW(path, hashW);
if (info->referenceString)
strcatW(path, info->referenceString);
return path;
}
static void SETUPDI_FreeInterfaceInstances(struct InterfaceInstances *instances)
{
WCHAR *path;
DWORD i;
for (i = 0; i < instances->cInstances; i++)
@ -212,8 +279,11 @@ static void SETUPDI_FreeInterfaceInstances(struct InterfaceInstances *instances)
if (ifaceInfo->device && ifaceInfo->device->phantom)
{
SetupDiDeleteDeviceInterfaceRegKey(ifaceInfo->device->set,
&instances->instances[i], 0);
if ((path = get_refstr_key_path(&instances->instances[i])))
{
RegDeleteKeyW(HKEY_LOCAL_MACHINE, path);
heap_free(path);
}
}
HeapFree(GetProcessHeap(), 0, ifaceInfo->referenceString);
HeapFree(GetProcessHeap(), 0, ifaceInfo->symbolicLink);
@ -399,6 +469,7 @@ static BOOL SETUPDI_AddInterfaceInstance(struct device *devInfo,
ifaceInfo->referenceString = NULL;
if (ret)
{
WCHAR *path;
HKEY key;
iface->cInstances++;
@ -409,15 +480,30 @@ static BOOL SETUPDI_AddInterfaceInstance(struct device *devInfo,
instance->Reserved = (ULONG_PTR)ifaceInfo;
if (newInterface)
iface->guid = *InterfaceClassGuid;
key = SetupDiCreateDeviceInterfaceRegKeyW(devInfo->set,
instance, 0, KEY_WRITE, NULL, NULL);
if (key != INVALID_HANDLE_VALUE)
if ((path = get_iface_key_path(instance)))
{
RegSetValueExW(key, SymbolicLink, 0, REG_SZ,
(BYTE *)ifaceInfo->symbolicLink,
lstrlenW(ifaceInfo->symbolicLink) *
sizeof(WCHAR));
RegCloseKey(key);
if (!RegCreateKeyW(HKEY_LOCAL_MACHINE, path, &key))
{
RegSetValueExW(key, DeviceInstance, 0, REG_SZ,
(BYTE *)devInfo->instanceId,
lstrlenW(devInfo->instanceId) * sizeof(WCHAR));
RegCloseKey(key);
}
heap_free(path);
}
if ((path = get_refstr_key_path(instance)))
{
if (!RegCreateKeyW(HKEY_LOCAL_MACHINE, path, &key))
{
RegSetValueExW(key, SymbolicLink, 0, REG_SZ,
(BYTE *)ifaceInfo->symbolicLink,
lstrlenW(ifaceInfo->symbolicLink) *
sizeof(WCHAR));
RegCloseKey(key);
}
heap_free(path);
}
if (ifaceData)
*ifaceData = instance;