Userspace TUN for RSD #1409
Userspace TUN for RSD #1409
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strobecat
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| @@ -139,14 +142,16 @@ | |||
| class RemotePairingTunnel(ABC): | |||
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Abstracted RemotePairingTunnel, OSRemotePairingTunnel => Use OS TUN interface (pytun_pmd3), UserspacePairingTunnel => Use userspace TCP/IPv6 stack (swtcp6_pmd3)
| @staticmethod | ||
| def _encode_cdtunnel_packet(data: dict) -> bytes: | ||
| return CDTunnelPacket.build({'body': json.dumps(data).encode()}) | ||
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Works as the same way of go-ios: create a tcp server at _userspace_host:random_port
When connecting to a RSD service:
intf_poll_tasksync raw IPv6 data between idevice and virtual NIC- Client (see ServiceConnection) connect to the userspace wrapper tcp server
- Send address and port of RSD service (dest) => server tries to connect dest via virtual NIC
- Server sync all data sent by client to dest
| try: | ||
| yield TunnelResult( | ||
| client.tun.name, handshake_response['serverAddress'], handshake_response['serverRSDPort'], | ||
| client.get_interface(), handshake_response['serverAddress'], handshake_response['serverRSDPort'], |
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.get_interface will be '<userspace TUN server host> <port>' if isinstance(client, UserspaceRemotePairingTunnel)
| if script_mode: | ||
| print(f'{tunnel_result.address} {tunnel_result.port}') | ||
| if userspace_host: | ||
| print(f'{tunnel_result.address} {tunnel_result.port} {tunnel_result.interface}') |
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Here tunnel_result.interface is '<host> <port>' of Userspace TUN server if use_userspace
| self._run_coroutine(self.send_packet_to_device(packet)) | ||
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| @asyncio_print_traceback | ||
| async def intf_poll_task(self) -> None: |
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poll means let virtual NIC process all incoming raw IPv6 bytes (from a buffer), outgoing traffic (to a buffer)
after poll, outgoing buffer would be some data so send it to device
| await self._polled.wait() | ||
| to_send = await r.read(available_buf) | ||
| if not to_send: | ||
| # connection lost |
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connect between ServiceConnection and the function lost
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How to run the userspace tunnel? will it be its own pypi package? |
strobecat
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By normal way you start tunnel but with a |
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I failed to figure out how to use swtcp6-pmd3. It should have a proper README and uploaded to pypi. Doesn't seem to contain any CLI for bringing up the server you mentioned |
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Ah sorry sir I forget to mention that. It was used as a library in |
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I see. This means this dependency needs to be either optional or be compiled cross platforms using cibuildwheel to be included |
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@strobecat can the rsd which started in this way be used to start debug server ? |
it should function like system tun ideally btw pr progress: I'm currently try to give |
This PR wants to add a userspace TUN to connect to RSD service.
I've tested that
pymobiledevice3 developer dvt ls / --userspace-wrapper ... --rsd ...withpymobiledevice3 lockdown start-tunnel --userspace-host 0.0.0.0works on iPadOS 18.5 and Python 3.10.12. Tunneld current not portedSource of
swtcp6_pmd3is here: strobecat/swtcp6-pmd3 (I assume Apple only use ipv6 for RSD)the packages serve as a virtual NIC and TCP FSMs, process (everytime
.poll()got called) raw IPv6 bytes from device, update TCP FSM, and send raw bytes to the device.Closes #1260
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