{
  "added_at": "2026-11-08",
  "additional_evidence_urls": [
    "https://github.com/clintecker/sacd-reconstruct/blob/d7ad255f1b1d1d6c951bce04573ff51ae5d25c77/docs/ARCHITECTURE.md"
  ],
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "SACD daemon reconstruction rebuilds Sony BDP-BX510's ARM sacd_extract_160 daemon in C. It documents TCP 2002 sector requests and the CPSA ioctl path, and supplies function-diff tools, QEMU device models and differential captures. The author reports 388 of 390 functions equivalent and byte-identical wire behavior in tested cases.",
  "description_zh": "SACD daemon reconstruction 用 C 语言重建 Sony BDP-BX510 的 ARM 守护进程 sacd_extract_160。项目记录 TCP 2002 扇区请求及 CPSA ioctl 路径，提供函数差异比较工具、QEMU 设备模型和对照捕获；作者报告 390 个函数中有 388 个达到等价，并在所测场景中得到字节一致的网络行为。",
  "entry_url": "https://awesomerea.org/resources/sacd-daemon-reconstruction-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/sacd-daemon-reconstruction-case/",
  "evidence_class": 2,
  "evidence_status": "observed",
  "evidence_url": "https://github.com/clintecker/sacd-reconstruct/blob/d7ad255f1b1d1d6c951bce04573ff51ae5d25c77/README.md",
  "group": "cases",
  "id": "sacd-daemon-reconstruction-case",
  "json_url": "https://awesomerea.org/resources/sacd-daemon-reconstruction-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/sacd-daemon-reconstruction-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/sacd-daemon-reconstruction-case/index.md",
  "name": "SACD daemon reconstruction: rebuilding Sony BDP-BX510 sacd_extract_160",
  "name_zh": "SACD daemon reconstruction：重建 Sony BDP-BX510 的 sacd_extract_160",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "limits",
    "license"
  ],
  "requirements": [
    "A dump from the user's own BDP-BX510 for binary comparison; an ARM cross-compiler for building.",
    "The author reports 388/390 function equivalence in the reconstruction.",
    "MIT license for project code."
  ],
  "requirements_zh": [
    "比对二进制文件需要用户自备 BDP-BX510 转储；构建需要 ARM 交叉编译器。",
    "作者报告重建版本中 390 个函数有 388 个达到等价。",
    "项目代码采用 MIT 许可证。"
  ],
  "scope": "unknown",
  "targets": [
    "binary",
    "firmware",
    "protocol"
  ],
  "url": "https://github.com/clintecker/sacd-reconstruct",
  "verification": "source-reviewed",
  "verified_at": "2026-11-06"
}