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108 lines
2.9 KiB
108 lines
2.9 KiB
// +build windows
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package process
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import (
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"errors"
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"syscall"
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"unsafe"
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"github.com/shirou/gopsutil/internal/common"
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"golang.org/x/sys/windows"
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)
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type PROCESS_MEMORY_COUNTERS struct {
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CB uint32
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PageFaultCount uint32
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PeakWorkingSetSize uint32
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WorkingSetSize uint32
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QuotaPeakPagedPoolUsage uint32
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QuotaPagedPoolUsage uint32
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QuotaPeakNonPagedPoolUsage uint32
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QuotaNonPagedPoolUsage uint32
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PagefileUsage uint32
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PeakPagefileUsage uint32
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}
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func queryPebAddress(procHandle syscall.Handle, is32BitProcess bool) (uint64, error) {
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if is32BitProcess {
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//we are on a 32-bit process reading an external 32-bit process
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var info processBasicInformation32
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ret, _, _ := common.ProcNtQueryInformationProcess.Call(
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uintptr(procHandle),
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uintptr(common.ProcessBasicInformation),
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uintptr(unsafe.Pointer(&info)),
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uintptr(unsafe.Sizeof(info)),
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uintptr(0),
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)
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if status := windows.NTStatus(ret); status == windows.STATUS_SUCCESS {
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return uint64(info.PebBaseAddress), nil
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} else {
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return 0, windows.NTStatus(ret)
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}
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} else {
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//we are on a 32-bit process reading an external 64-bit process
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if common.ProcNtWow64QueryInformationProcess64.Find() == nil { //avoid panic
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var info processBasicInformation64
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ret, _, _ := common.ProcNtWow64QueryInformationProcess64.Call(
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uintptr(procHandle),
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uintptr(common.ProcessBasicInformation),
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uintptr(unsafe.Pointer(&info)),
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uintptr(unsafe.Sizeof(info)),
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uintptr(0),
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)
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if status := windows.NTStatus(ret); status == windows.STATUS_SUCCESS {
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return info.PebBaseAddress, nil
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} else {
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return 0, windows.NTStatus(ret)
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}
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} else {
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return 0, errors.New("can't find API to query 64 bit process from 32 bit")
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}
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}
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}
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func readProcessMemory(h syscall.Handle, is32BitProcess bool, address uint64, size uint) []byte {
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if is32BitProcess {
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var read uint
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buffer := make([]byte, size)
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ret, _, _ := common.ProcNtReadVirtualMemory.Call(
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uintptr(h),
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uintptr(address),
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uintptr(unsafe.Pointer(&buffer[0])),
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uintptr(size),
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uintptr(unsafe.Pointer(&read)),
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)
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if int(ret) >= 0 && read > 0 {
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return buffer[:read]
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}
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} else {
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//reading a 64-bit process from a 32-bit one
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if common.ProcNtWow64ReadVirtualMemory64.Find() == nil { //avoid panic
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var read uint64
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buffer := make([]byte, size)
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ret, _, _ := common.ProcNtWow64ReadVirtualMemory64.Call(
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uintptr(h),
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uintptr(address & 0xFFFFFFFF), //the call expects a 64-bit value
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uintptr(address >> 32),
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uintptr(unsafe.Pointer(&buffer[0])),
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uintptr(size), //the call expects a 64-bit value
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uintptr(0), //but size is 32-bit so pass zero as the high dword
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uintptr(unsafe.Pointer(&read)),
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)
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if int(ret) >= 0 && read > 0 {
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return buffer[:uint(read)]
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}
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}
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}
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//if we reach here, an error happened
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return nil
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}
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