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[porthole] update in accordance with the recent windows driver changes

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This commit is contained in:
Geoffrey McRae
2019-10-31 23:45:08 +11:00
parent 9d6bb57eff
commit 01da541815
6 changed files with 98 additions and 88 deletions
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34
porthole/src/windows/device.c
View File

@@ -24,6 +24,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <windows.h>
#include <setupapi.h>
#include <assert.h>
struct PortholeDev
{
@@ -37,11 +38,7 @@ bool porthole_dev_open(PortholeDev *handle, const uint32_t vendor_id)
SP_DEVICE_INTERFACE_DATA devInfData = {0};
HANDLE dev;
if (!handle)
{
DEBUG_ERROR("Invalid buffer provided");
return false;
}
assert(handle);
devInfo = SetupDiGetClassDevs(NULL, NULL, NULL, DIGCF_PRESENT | DIGCF_ALLCLASSES | DIGCF_DEVICEINTERFACE);
devInfData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
@@ -121,13 +118,17 @@ bool porthole_dev_open(PortholeDev *handle, const uint32_t vendor_id)
void porthole_dev_close(PortholeDev *handle)
{
assert(handle && *handle);
CloseHandle((*handle)->dev);
free(*handle);
*handle = NULL;
}
bool porthole_dev_share(PortholeDev handle, const uint32_t type, void *buffer, size_t size)
PortholeID porthole_dev_map(PortholeDev handle, const uint32_t type, void *buffer, size_t size)
{
assert(handle);
DWORD returned;
PortholeMsg msg = {
@@ -136,22 +137,23 @@ bool porthole_dev_share(PortholeDev handle, const uint32_t type, void *buffer, s
.size = size
};
if (!DeviceIoControl(handle->dev, IOCTL_PORTHOLE_SEND_MSG, &msg, sizeof(PortholeMsg), NULL, 0, &returned, NULL))
return false;
PortholeMapID out;
return true;
if (!DeviceIoControl(handle->dev, IOCTL_PORTHOLE_SEND_MSG, &msg, sizeof(PortholeMsg), &out, sizeof(PortholeMapID), &returned, NULL))
return -1;
PortholeID ret = out;
return ret;
}
bool porthole_dev_unlock(PortholeDev handle, void *buffer, size_t size)
bool porthole_dev_unmap(PortholeDev handle, PortholeID id)
{
assert(handle);
DWORD returned;
PortholeLockMsg msg = {
.addr = buffer,
.size = size
};
if (!DeviceIoControl(handle->dev, IOCTL_PORTHOLE_UNLOCK_BUFFER, &msg , sizeof(PortholeLockMsg), NULL, 0, &returned, NULL))
PortholeMapID msg = id;
if (!DeviceIoControl(handle->dev, IOCTL_PORTHOLE_UNLOCK_BUFFER, &msg, sizeof(PortholeMapID), NULL, 0, &returned, NULL))
return false;
return true;

13
porthole/src/windows/driver.h
View File

@@ -7,18 +7,13 @@ DEFINE_GUID (GUID_DEVINTERFACE_PORTHOLE,
typedef struct _PortholeMsg
{
UINT32 type;
PVOID addr;
UINT32 size;
UINT32 type;
PVOID addr;
UINT32 size;
}
PortholeMsg, *PPortholeMsg;
typedef struct _PortholeLockMsg
{
PVOID addr;
UINT32 size;
}
PortholeLockMsg, *PPortholeLockMsg;
typedef int PortholeMapID, *PPortholeMapID;
#define IOCTL_PORTHOLE_SEND_MSG CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_PORTHOLE_UNLOCK_BUFFER CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_BUFFERED, FILE_ANY_ACCESS)