4feb8d4126
- TUNSETIFF works, the interface is indeed created.
- An fd is indeed passed over the unix socket,
- and is a valid (enough) fd because it can fed into `dup2`.
- `nix run -f . --offline pkgs.taps -- pass sleep 5` works, the
interface exists for 5 seconds and disappears
- `nix run -f . --offline pkgs.taps -- pass ch-remote --api-socket=$HOME/uvms/nixos/vmm.sock add-net fd=3`
obscurely fails, killing the VMM with:
```console
[root@nixos:~]# cloud-hypervisor: 12.388270s: <_net1_qp0> ERROR:/build/source/net_util/src/queue_pair.rs:112 -- net: tx: failed writing to tap: Input/output error (os er
ror 5)
cloud-hypervisor: 12.388459s: <_net1_qp0> ERROR:virtio-devices/src/thread_helper.rs:54 -- Error running worker: HandleEvent(Error processing TX queue: NetQueuePair(Write
Tap(Os { code: 5, kind: Uncategorized, message: "Input/output error" })))
```
|
||
|---|---|---|
| .. | ||
| meson.build | ||
| package.nix | ||
| proxy.c | ||
| sendfd.c | ||
| sendfd.h | ||