feat(ebpf): add connect_count probe for tracing outbound IPv4 connect… #9
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…ions Implements a Rust-based eBPF probe using aya to trace IPv4 connect() syscalls via the `sys_enter_connect` tracepoint. The probe records: - PID of the process initiating the connection - Destination IP and port - Incremental connection count per PID-IP-port tuple Key features: - Safe user-space pointer dereferencing using `bpf_probe_read_user` - Compact map key: [pid(4) | ip(4) | port(2) | padding(2)] - Two eBPF maps: - `connect_attempts`: count of per-connection attempts - `total_triggers`: global increment counter - Handles invalid addrlen, pointer, and non-IPv4 traffic gracefully - Logs each event via `bpf_printk!` for debugging This version is stable and verified via `trace_pipe`.
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Implements a Rust-based eBPF probe using aya to trace IPv4 connect() syscalls via the
sys_enter_connecttracepoint. The probe records:Key features:
bpf_probe_read_userconnect_attempts: count of per-connection attemptstotal_triggers: global increment counterbpf_printk!for debuggingThis version is stable and verified via
trace_pipe.