Not able to print logs

[hanshal101]

Is there any problem with aya, I have generated a base classifier's project. When I run it I don't receive any logs. I tried this on every iface I had with me. The program was attached the maps were there including the ring map (AYA_LOG). I am not sure what is the problem, but I faced the same in different projects as well. Something's wrong with my dev env.

Project: https://github.com/Trac3X/dropper

[tamird]

Did you set RUST_LOG=info in the environment when you ran your program?

[hanshal101]

Yes I did, :

hanshal101@lol:~/ebpf/prog/lsm$ export RUST_LOG=debug
hanshal101@lol:~/ebpf/prog/lsm$ RUST_LOG=debug cargo build
warning: lsm@0.1.0:    Compiling proc-macro2 v1.0.104
warning: lsm@0.1.0:    Compiling quote v1.0.42
warning: lsm@0.1.0:    Compiling unicode-ident v1.0.22
warning: lsm@0.1.0:    Compiling serde_core v1.0.228
warning: lsm@0.1.0:    Compiling zmij v1.0.2
warning: lsm@0.1.0:    Compiling serde_json v1.0.148
warning: lsm@0.1.0:    Compiling camino v1.2.2
warning: lsm@0.1.0:    Compiling thiserror v2.0.17
warning: lsm@0.1.0:    Compiling serde v1.0.228
warning: lsm@0.1.0:    Compiling memchr v2.7.6
warning: lsm@0.1.0:    Compiling itoa v1.0.17
warning: lsm@0.1.0:    Compiling compiler_builtins v0.1.160 (/home/hanshal101/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins)
warning: lsm@0.1.0:    Compiling anyhow v1.0.100
warning: lsm@0.1.0:    Compiling rustversion v1.0.22
warning: lsm@0.1.0:    Compiling core v0.0.0 (/home/hanshal101/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
warning: lsm@0.1.0:    Compiling version_check v0.9.5
warning: lsm@0.1.0:    Compiling rustix v0.38.44
warning: lsm@0.1.0:    Compiling bitflags v2.10.0
warning: lsm@0.1.0:    Compiling linux-raw-sys v0.4.15
warning: lsm@0.1.0:    Compiling either v1.15.0
warning: lsm@0.1.0:    Compiling home v0.5.12
warning: lsm@0.1.0:    Compiling proc-macro2-diagnostics v0.10.1
warning: lsm@0.1.0:    Compiling syn v2.0.111
warning: lsm@0.1.0:    Compiling which v6.0.3
warning: lsm@0.1.0:    Compiling semver v1.0.27
warning: lsm@0.1.0:    Compiling cargo-platform v0.3.2
warning: lsm@0.1.0:    Compiling lsm-ebpf v0.1.0 (/home/hanshal101/ebpf/prog/lsm/lsm-ebpf)
warning: lsm@0.1.0:    Compiling serde_derive v1.0.228
warning: lsm@0.1.0:    Compiling thiserror-impl v2.0.17
warning: lsm@0.1.0:    Compiling num_enum_derive v0.7.5
warning: lsm@0.1.0:    Compiling aya-ebpf-macros v0.1.2 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling num_enum v0.7.5
warning: lsm@0.1.0:    Compiling aya-log-common v0.1.16 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling aya-log-parser v0.1.14 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling aya-log-ebpf-macros v0.1.1 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling cargo_metadata v0.23.1
warning: lsm@0.1.0:    Compiling aya-build v0.1.3 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling aya-ebpf-cty v0.2.3 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling aya-ebpf-bindings v0.1.2 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling aya-ebpf v0.1.2 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:    Compiling lsm-common v0.1.0 (/home/hanshal101/ebpf/prog/lsm/lsm-common)
warning: lsm@0.1.0:    Compiling aya-log-ebpf v0.1.2 (https://github.com/aya-rs/aya#3b284475)
warning: lsm@0.1.0:     Finished `release` profile [optimized] target(s) in 13.97s
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
hanshal101@lol:~/ebpf/prog/lsm$ RUST_LOG=debug sudo ./target/debug/lsm
Waiting for Ctrl-C...

Still I do not see anything, did a simple cat /test.txt. nothing showed up in the logs

[tamird]

Hmm the logs you pasted above are from a program called lsm but in your repro the program is called dropper.

[hanshal101]

yeah, actually both are same base level projects, one for lsm another for classifiers. I hope this is not the issue here because I don't see logs in either of them!

[tamird]

Consider looking at this unhandled error: https://github.com/Trac3X/dropper/blob/c9bc5b3b3f0d6910ece212389ab93249559ef632/dropper/src/main.rs#L58

also, can you please enumerate all the interfaces and what you tried? have you tried other kinds of programs like uprobes? do those work?