packeteer - Packet capture and analysis, TUI and desktop GUI.

Age	Commit message (Collapse)	Author	Files	Lines
2024-05-17	Add privilege dropping, AF_PACKET demo, ICMP, checksum validation, --help, ↵	srdusr	1	-0/+126
	and TCP reassembly Rounds out the build order in PLAN.md with six incremental additions: drop root privileges immediately after opening the capture handle; a standalone AF_PACKET/mmap ring-buffer demo (kept separate from CaptureSession, see its header comment for why); ICMPv4/ICMPv6 type and code decoding; opt-in IPv4/TCP/UDP checksum validation (-c); CLI --help; and opt-in, in-order-only TCP stream reassembly (-a) so HTTP requests/responses split across segments can be seen whole. Each addition is unit-tested and, where it touches live traffic behavior, verified against real captured packets - see PLAN.md's Decisions section for the verification notes on each.
2024-05-14	Initial commit: wireframe packet capture/analysis tool	srdusr	1	-0/+188
	Terminal packet capture and analysis tool built to learn the C++ memory model (byte layout, alignment, endianness, std::span over unowned buffers) via a real capture pipeline. - Hand-rolled L2-L4 decoders (Ethernet, IPv4, IPv6 with extension header walking, TCP, UDP) over std::span, no struct-casting - L7 dissector interface with DNS, HTTP, and TLS SNI implementations - pcapng read/write for Wireshark-compatible capture files - Bounded capture queue: drop-on-backpressure for live capture, blocking push for faithful file replay - Kernel-level BPF filtering (-f) and a separate display-only search (-g / interactive) that doesn't touch what's captured - Replay mode (-r) reads a saved pcapng file back through the same pipeline as live capture, no root or live device needed - pcap_stats() surfaces kernel/interface drops invisible to the capture queue's own counter - Three frontends sharing one CaptureSession setup path: CLI, TUI (FTXUI, primary), GUI (Dear ImGui + SDL3, secondary) - 89 unit tests (doctest) plus 9 libFuzzer harnesses covering every hand-rolled parser; fuzzing found and fixed a real OOM in the pcapng reader (unbounded allocation from an untrusted length field)