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Use pyfastlz instead of pure-python implementation

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This commit is contained in:
Lucian Petrut
2026-09-07 13:38:45 +00:00
parent 56a1c36c80
commit 33b6a3967b
5 changed files with 34 additions and 274 deletions
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docs/nfc_open.md
+1 -1
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@@ -209,7 +209,7 @@ classic type 4 `NFC_SESSION_COMPLETE`.
| VIM + authd | `openvixdisklib.nfc_auth.authenticate` |
| Dup fd, skip TLS for NFC | `openvixdisklib.nfc_open.takeover_authd_socket` |
| Second TLS for nbdssl | `openvixdisklib.nfc_open.wrap_nfcssl_socket` |
| FastLZ for NBD compression | `openvixdisklib.fastlz` |
| FastLZ for NBD compression | `openvixdisklib.fastlz` (pip `pyfastlz`) |
| Handshake + AIO + OPEN_FILE | `openvixdisklib.nfc_open.open_disk` |
| Sector read / write / close | `openvixdisklib.nfc_open.NfcDisk` |
docs/reverse_engineering_procedure.md
+4 -2
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@@ -294,8 +294,10 @@ not an OPEN_FILE bit. Capture VDDK with that flag (NBD + the port-902
- Incompressible chunks fall back to type `0` and raw extra.
- 64 KiB chunks use FastLZ level 2; smaller chunks use level 1.
Replay: `openvixdisklib/fastlz.py` plus `NfcDisk` compression on each
IO. Proof: `tests/integration/test_nfc_read_write.py` (`fastlz`) and
Replay: pip `pyfastlz` via `openvixdisklib/fastlz.py` (NFC extra is
raw FastLZ, without the wrapper's 4-byte length prefix) plus `NfcDisk`
compression on each IO. Proof:
`tests/integration/test_nfc_read_write.py` (`fastlz`) and
`tests/perf/test_compare.py`.
## What to write down