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bio2emu: cleanup setupapi code a bit

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This commit is contained in:
Will Xyen 2019-10-12 14:16:55 -04:00
parent 0c1bbe08c0
commit 0f04d5ef19
1 changed files with 58 additions and 45 deletions
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103
src/main/bio2emu/setupapi.c
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@ -18,6 +18,63 @@
static struct array* bio2_assigned_ports = NULL;
DEFINE_GUID(GUID_COM_BUS_ENUMERATOR,
0x4D36E978, 0xE325, 0x11CE, 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18);
#define MAX_INSTANCES_HOOKED 16
#define CUSTOM_DEVICE_INSTANCE 0x3113ca70
#define CUSTOM_DEVICE_INSTANCE_MASK 0xfffffff0
#define CUSTOM_DEVICE_INSTANCE_IDXMASK 0x0000000f
static void* CUSTOM_DEVICE_HANDLE;
static struct HKEY__ CUSTOM_REGISTRY_HANDLE[MAX_INSTANCES_HOOKED];
// end result should be like BIO2(VIDEO)(COM4)
static const char DEVICE_PROPERTY_VALUE[] = "BIO2(VIDEO)(";
static const size_t DEVICE_PROPERTY_LENGTH = 12;
static const char devpath[] = "USB\\VID_5730&PID_804C&MI_00\\000";
static const size_t devpathsize = 32;
// check if HKEY handle is one of ours
static BOOL check_if_match(HKEY ptr, HKEY base) {
return (ptr >= &base[0]) && (ptr <= &base[MAX_INSTANCES_HOOKED - 1]);
}
// turn HKEY handle back into idx
static size_t get_match_index(HKEY ptr, HKEY base) {
for (size_t i = 0; i < MAX_INSTANCES_HOOKED; ++i) {
if (ptr == &base[i]) {
return i;
}
}
return -1;
}
// check if devinst is on of ours (can't use pointer since this is a DWORD)
static BOOL check_instances_limit(DWORD devinst) {
if ((devinst & CUSTOM_DEVICE_INSTANCE_MASK) != CUSTOM_DEVICE_INSTANCE) {
return false;
}
size_t num = devinst & CUSTOM_DEVICE_INSTANCE_IDXMASK;
if (num >= MAX_INSTANCES_HOOKED) {
return false;
}
if (num >= bio2_assigned_ports->nitems) {
return false;
}
return true;
}
//
// hooked functions
//
static BOOL my_SetupDiDestroyDeviceInfoList(
HDEVINFO DeviceInfoSet
);
@ -177,42 +234,6 @@ static const struct hook_symbol bio2emu_Advapi32_syms[] = {
},
};
#define MAX_INSTANCES_HOOKED 16
#define CUSTOM_DEVICE_INSTANCE 0x3113ca70
#define CUSTOM_DEVICE_INSTANCE_MASK 0xfffffff0
#define CUSTOM_DEVICE_INSTANCE_IDXMASK 0x0000000f
static void* CUSTOM_DEVICE_HANDLE;
static struct HKEY__ CUSTOM_REGISTRY_HANDLE[MAX_INSTANCES_HOOKED];
static BOOL check_if_match(HKEY ptr, HKEY base) {
return (ptr >= &base[0]) && (ptr <= &base[MAX_INSTANCES_HOOKED - 1]);
}
static size_t get_match_index(HKEY ptr, HKEY base) {
for (size_t i = 0; i < MAX_INSTANCES_HOOKED; ++i) {
if (ptr == &base[i]) {
return i;
}
}
return -1;
}
static BOOL check_instances_limit(DWORD devinst) {
if ((devinst & CUSTOM_DEVICE_INSTANCE_MASK) != CUSTOM_DEVICE_INSTANCE) {
return false;
}
size_t num = devinst & CUSTOM_DEVICE_INSTANCE_IDXMASK;
if (num >= MAX_INSTANCES_HOOKED) {
return false;
}
if (num >= bio2_assigned_ports->nitems) {
return false;
}
return true;
}
static BOOL my_SetupDiDestroyDeviceInfoList(
HDEVINFO DeviceInfoSet
){
@ -220,6 +241,7 @@ static BOOL my_SetupDiDestroyDeviceInfoList(
log_info("Inside: %s", __FUNCTION__);
return true;
}
return real_SetupDiDestroyDeviceInfoList(DeviceInfoSet);
}
@ -256,9 +278,6 @@ static HKEY my_SetupDiOpenDevRegKey(
return real_SetupDiOpenDevRegKey(DeviceInfoSet, DeviceInfoData, Scope, HwProfile, KeyType, samDesired);
}
static const char DEVICE_PROPERTY_VALUE[] = "BIO2(VIDEO)(";
static const size_t DEVICE_PROPERTY_LENGTH = 12;
static BOOL my_SetupDiGetDeviceRegistryPropertyA(
HDEVINFO DeviceInfoSet,
PSP_DEVINFO_DATA DeviceInfoData,
@ -304,9 +323,6 @@ static BOOL my_SetupDiGetDeviceInfoListDetailA(
return real_SetupDiGetDeviceInfoListDetailA(DeviceInfoSet, DeviceInfoSetDetailData);
}
DEFINE_GUID(GUID_COM_BUS_ENUMERATOR,
0x4D36E978, 0xE325, 0x11CE, 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18);
static HDEVINFO my_SetupDiGetClassDevsA(
CONST GUID *ClassGuid,
PCSTR Enumerator,
@ -346,9 +362,6 @@ static LSTATUS my_RegQueryValueExA(
return real_RegQueryValueExA(hKey, lpValueName, lpReserved, lpType, lpData, lpcbData);
}
static const char devpath[] = "USB\\VID_5730&PID_804C&MI_00\\000";
static const size_t devpathsize = 32;
static CONFIGRET my_CM_Get_Device_IDA(
DEVINST dnDevInst,
PSTR Buffer,