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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2019-07-19 06:29:33 +0000 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-07-19 06:31:26 +0000 |
| commit | 970e22d8e440d4328524df0c1863ee6ae938f867 (patch) | |
| tree | dfc087239857638ef3379c373976fa2604b314e8 | |
| parent | Require the usual SDDL_DEVOBJ_SYS_ALL permissions (diff) | |
| download | wintun-970e22d8e440d4328524df0c1863ee6ae938f867.tar.xz wintun-970e22d8e440d4328524df0c1863ee6ae938f867.zip | |
Use more specific IOCTL code
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
| -rw-r--r-- | README.md | 2 | ||||
| -rw-r--r-- | wintun.c | 3 |
2 files changed, 2 insertions, 3 deletions
@@ -148,7 +148,7 @@ typedef struct _TUN_REGISTER_RINGS - `Receive.TailMoved`: A handle to an [`auto-reset event`](https://docs.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-createeventa) created by the client that the client will signal when it changes `Receive.Ring->Tail` and `Receive.Ring->Alertable` is non-zero. -With events created, send and receive rings allocated, and registration struct populated, [`DeviceIoControl`](https://docs.microsoft.com/en-us/windows/win32/api/ioapiset/nf-ioapiset-deviceiocontrol)(`TUN_IOCTL_REGISTER_RINGS`: 0x22E000) with pointer and size of descriptor struct specified as `lpInBuffer` and `nInBufferSize` parameters. You may call `TUN_IOCTL_REGISTER_RINGS` on one handle only. +With events created, send and receive rings allocated, and registration struct populated, [`DeviceIoControl`](https://docs.microsoft.com/en-us/windows/win32/api/ioapiset/nf-ioapiset-deviceiocontrol)(`TUN_IOCTL_REGISTER_RINGS`: 0xca6ce5c0) with pointer and size of descriptor struct specified as `lpInBuffer` and `nInBufferSize` parameters. You may call `TUN_IOCTL_REGISTER_RINGS` on one handle only. ### Writing to and from rings @@ -101,8 +101,7 @@ typedef struct _TUN_REGISTER_RINGS /* Register rings hosted by the client * The lpInBuffer and nInBufferSize parameters of DeviceIoControl() must point to an TUN_REGISTER_RINGS struct. * Client must wait for this IOCTL to finish before adding packets to the ring. */ -#define TUN_IOCTL_REGISTER_RINGS CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_READ_DATA | FILE_WRITE_DATA) -/* TODO: Select and specify OEM-specific device type instead of FILE_DEVICE_UNKNOWN. */ +#define TUN_IOCTL_REGISTER_RINGS CTL_CODE(51820, 0x970, METHOD_BUFFERED, FILE_READ_DATA | FILE_WRITE_DATA) typedef enum _TUN_FLAGS { |