feat(ssh-fail-monitor): add kprobe-based sshd detection #11
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…ringbuf eventing Implements a new SSH fail monitor using a kprobe on all processes. - Hooks every `kprobe` entry point and filters based on `comm == "sshd"` - Emits timestamped events via RingBuf including PID, UID, comm, and time - Tracks per-UID failure count in a HashMap (UID -> attempt count) - Uses `bpf_get_current_comm`, `bpf_get_current_pid_tgid`, `bpf_get_current_uid_gid`, and `bpf_ktime_get_ns` - Adds bpf_printk debug output for each triggered event - Includes panic handler and `GPL` license section for kernel validation Note: This method is generic and does not attach directly to `pam_authenticate`. Future enhancement: Combine with uretprobe on PAM to capture return code and failure reason.
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Implements a new SSH fail monitor using a kprobe on all processes.
kprobeentry point and filters based oncomm == "sshd"bpf_get_current_comm,bpf_get_current_pid_tgid,bpf_get_current_uid_gid, andbpf_ktime_get_nsGPLlicense section for kernel validationNote: This method is generic and does not attach directly to
pam_authenticate.Future enhancement: Combine with uretprobe on PAM to capture return code and failure reason.