[devman]

I think I managed to fix it but not with C interface, I used the initial code that I wrote purely in go, I can now ReadPackets but instead of using windows.Handle or uintptr I created an 8 bytes array (type HANDLE [8]byte) for network adapter handle and used it and it’s working

I’m not sure what did I do wrong maybe go did some type-casting or something…

[devman]

Could it be size of Handle difference?
I mean if uintptr is unsigned int and if I’m on 64bit, I should use uint64 instead of uintptr?

[devman]

I tried to use the C Interface and I think I have same problem and I think it’s related to Handle.
I think I’m using wrong datatype for Handle, let’s say I’m getting AdapterMode and on I should have a AdapterHandle that I got from TCPAdapterList and for now I used uintptr datatype to store handle, I’m not sure if it’s actualy uintptr or something else. (Because windows.Handle or syscall.Handle actual datatype on go is uintptr).

I can get AdapterList and store it into a struct which is exactly like C/C++ version but when I want to for example SetEvent or any API that wants AdapterHandle I get error: “The parameter is incorrect.”

AdapterList (works without error):
type TCP_AdapterList struct {
AdapterCount uint32
AdapterNameList [ADAPTER_LIST_SIZE][ADAPTER_NAME_SIZE]byte
AdapterHandle [ADAPTER_LIST_SIZE]uintptr
AdapterMediumList [ADAPTER_LIST_SIZE]uint32
CurrentAddress [ADAPTER_LIST_SIZE][ETHER_ADDR_LENGTH]byte
MTU [ADAPTER_LIST_SIZE]uint16
}
func (a *NdisApi) GetTcpipBoundAdaptersInfo() (*TCP_AdapterList, error) {
var adapterList TCP_AdapterList
_, _, err := a.c.GetTcpipBoundAdaptersInfo.Call(a.handle, uintptr(unsafe.Pointer(&adapterList)))

if !errors.Is(err, windows.ERROR_SUCCESS) {
return nil, err
}

return &adapterList, nil
}

GetAdapterMode (error: “The parameter is incorrect.”):
type AdapterMode struct {
AdapterHandle uintptr
Flags uint32
}
func (a *NdisApi) GetAdapterMode(currentMode *AdapterMode) (error) {
r1, r2, err := a.c.GetAdapterMode.Call(a.handle, uintptr(unsafe.Pointer(currentMode)))
fmt.Println(r1, r2, err, a.handle)

if !errors.Is(err, windows.ERROR_SUCCESS) {
return err
}

return nil
}

I actually don’t know whether if I’m correct or wrong, I’ll appreciate it if you help me solve this.
How can I make sure I’m using windows native event handle or if I got the Handle correctly, because I think thats what my problem is about?

Note that, I’m using 64-bit.

• This reply was modified 1 month, 3 weeks ago by devman.

[devman]

I don’t know how I didn’t think of using C interface, thank you, I think I’m going to do that.

[devman]

Looks like the problem was on my end and I should’ve added the Proxyre to the firewall allowed apps.

[Author]

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