"stellar" (stellar/stellar-2022) is a plugin-based protocol-decoder SDK (packet_io, plugin_manager, session_manager modules, with HTTP and DNS decoder components under active development through 2022) that runs on a "marsio mode" packet-I/O backend, showing the DPI decode layer beneath sapp is a modular framework supporting pluggable per-protocol decoders beyond SSL/TLS alone.
Commits: "[DNS_DECODER] add dns decoder parser and unittest", [email protected], 2022-09-09; "feature: http decoder * support parser uncompress request/response * define public API interface", [email protected], 2022-08-17. File tree: src/packet_io/marsio_mode/pio_marsio.cpp, src/protocol_decoder/http/http_decoder.cpp, src/plugin_manager/plugin_manager.cpp
Cited artifacts
mesalab_git—stellar/stellar-2022.bundle(git-commit-log)
Provenance pointers only — no leak content is rehosted. Raw material: Enlace Hacktivista.
Related findings
Crash-dump stack traces reveal TSG's core packet-processing engine (sapp) architecture: a custom multi-threaded C engine using 'marsio' as the DPDK-style packet-I/O driver, a plugin system for protocol handlers (confirmed: plug/protocol/http/http.so), and a libdocumentanalyze component that actively decompresses gzip content and parses ZIP/document formats found inside HTTP bodies -- i.e. inspection goes beyond headers into reconstructed application content.
An internal porting/test report documents migrating sapp and marsio (its DPDK-based packet-I/O layer) onto domestic Huawei Kunpeng ARM64 hardware (华鲲振宇 TG225 B1, dual KP920-5250 CPUs, 1TB RAM) running the Kylin (麒麟) domestic Linux distribution, using Huawei's Devkit source-migration scanning tool and DPDK 20.11.3 with hugepage/vfio-pci NIC binding, functionally validated via tcpreplay packet-injection tests.
MESA Lab's internal "tcp_burst" traffic-replay tool (common_tools/tcp_burst, a fork of tcpreplay) bundles fragroute — a well-known IDS/DPI-evasion toolkit implementing TCP/IP fragmentation, segment reordering, chaffing, duplication, and delay — and integrates its replay path with the marsio packet-I/O framework also used by sapp, indicating fragroute-style evasion techniques are used internally to test TSG/sapp's DPI robustness against fragmentation- and reordering-based evasion.
A repo named "active-defense/houyi-deploy" is an Ansible playbook that installs a component called "houyi" (后羿) alongside sapp and a "wire-graft" packet-injection module (matching the taxonomy's marsio "wired_graft" plugin); the bundled RPMs/scripts include standalone binaries named tcp_syn_flood, udp_dns_flood, and a DNS-reflection-amplification script (reflect_dns.sh), indicating this TSG-adjacent platform includes offensive flooding/DDoS capability, not just passive blocking.
TSG's data plane runs as containers (firewall, packet-io-engine, proxy, sce, shaping) per TSGX appliance, built on an internal packet framework called Marsio/MRZCPD (config at /opt/tsg/mrzcpd/etc/mrglobal.conf), deployed with 32GB hugepages and tunable TX rate-limiting per bonded NIC.
An official "Geedge Networks Confidential And Proprietary" sapp/mrzcpd operations manual documents the packet-injection API (MESA_kill_tcp / MESA_inject_pkt) used for both out-of-band mirror-tap RST injection (relies on the local box's own IP routing table to send) and inline in-path injection (requires mrtunnat.conf tunnel-tracking state -- use_recent_tunnel, use_link_info_table -- keyed on outer/inner MAC and link_id/link_dir), plus the Marsio DPDK-based driver's I/O sub-modes (marsio4, marsio_vxlan, pag_marsio, agent_smith) and its role extracting VXLAN/GTP encapsulation metadata and stamping link/circuit identifiers into mirrored packets' MAC field for session-log correlation.