Issue Running Examples

[keenanjohnson]

Hey all! I love this project so great work. I am getting started with one of the examples and hitting this error when I run it. Any ideas?

I am trying this on a Thinkpad running ubuntu.

~/ethercrab$ RUST_LOG=debug cargo run --example discover --release -- eth0
    Finished release [optimized] target(s) in 0.05s
     Running `target/release/examples/discover eth0`
[2024-05-29T22:40:32Z INFO  discover] Discovering EtherCAT devices on eth0...
thread 'main' panicked at examples/discover.rs:42:52:
spawn TX/RX task: Os { code: 1, kind: PermissionDenied, message: "Operation not permitted" }
stack backtrace:
   0: rust_begin_unwind
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
   2: core::result::unwrap_failed
             at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
   3: async_io::driver::block_on
   4: discover::main

[dickenhobelix]

I'd guess it's pretty much what the error message says: "Operation not permitted."

The stack uses raw sockets, which require cap_net_raw and cap_net_admin (iirc). Try running

setcap cap_net_raw,cap_net_admin=eip target/release/examples/discover

as root (e.g. using sudo) and please try again

[keenanjohnson]

Thank you! I'll try that and report back.