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Leonardo Francisco 93ba5598cc validity: fix dead code, stubs, and broken logic across Iteration 6 
Comprehensive bugfix for issues found during code audit:

1. parse_match_result (CRITICAL): Replace dead while loop + hardcoded
   offsets with proper TLV dict parsing (tag LE16 + len LE16 + data)
   matching python-validity's parse_dict(). Extracts user_dbid (tag 1),
   subtype (tag 3), and hash (tag 4) from match result.

2. ENROLL_CREATE_USER (CRITICAL): Fix NULL user_id crash —
   g_uuid_string_random() now generates UUID for user identity instead
   of passing NULL to g_variant_new_string().

3. Identify gallery matching: Match sensor result against gallery by
   comparing finger subtype instead of always returning first entry.

4. Field abuse: Add dedicated enroll_user_dbid field to FpiDeviceValidity
   instead of reusing delete_storage_dbid for enrollment state.

5. Delete SSM: Full implementation — enumerate users via get_user_storage,
   iterate users to find matching finger subtype, delete via cmd 0x48
   (del_record). Proper error handling for missing records.

6. match_finger double allocation: Remove redundant 12-byte alloc/free,
   single clean 13-byte allocation per python-validity format.

7. clear_storage: Full SSM implementation — enumerate user storage,
   del_record for each user. Replaces NOT_SUPPORTED stub.

8. Clean stale TODO/placeholder comments.

All 37 tests pass (0 fail, 2 skip — unchanged baseline).
2026-04-22 03:06:34 +00:00
.ci ci: Add ABI check 2019-08-05 20:05:13 +02:00
.gitlab-ci ci: Add PyGObject symbols 2026-02-10 06:33:00 +01:00
data validity: Add new driver for Validity/Synaptics VCSFW sensors 2026-04-22 03:06:34 +00:00
demo scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
doc build: Stop using deprecated dep.get_pkgconfig_variable() method 2024-02-20 01:02:00 +01:00
examples examples/clear-storage: Remove local storage for devices without storage 2025-02-20 16:37:11 +01:00
libfprint validity: fix dead code, stubs, and broken logic across Iteration 6 2026-04-22 03:06:34 +00:00
scripts scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
tests validity: Iteration 6 — Enrollment, Verification, and DB Management 2026-04-22 03:06:34 +00:00
.git-blame-ignore-revs .git-blame-ignore-revs: Ignore formatting commit and add hint how to use it 2020-12-07 19:01:10 +01:00
.gitignore gitignore: Remove autotools ignores, add _build 2020-02-10 11:41:40 +01:00
.gitlab-ci.yml ci: Make jobs interrumpible 2026-02-10 06:35:26 +01:00
AUTHORS AUTHORS: Update 2012-12-14 13:17:24 +01:00
code-of-conduct.md Add code of conduct document 2019-07-25 12:04:39 +02:00
COPYING upekts relicensing 2007-11-15 09:54:35 +00:00
gcovr.cfg gcovr: Add gcovr project configuration 2025-08-01 01:42:01 +02:00
HACKING.md HACKING: Clarify the intent of the license 2019-08-05 13:37:28 +02:00
INSTALL INSTALL: Update for Meson 2018-05-18 01:16:30 +02:00
MAINTAINERS Add MAINTAINERS file 2020-05-22 15:00:11 +02:00
meson.build validity: Add TLS session management (Iteration 2) 2026-04-22 03:06:34 +00:00
meson_options.txt tests: Add support for installed tests 2023-06-28 16:35:16 +02:00
NEWS Release 1.94.10 2026-02-10 03:18:14 +01:00
README.md README: Add contact information 2024-05-03 15:35:11 +02:00
THANKS Thanks to Greg and Martin from AuthenTec 2012-11-29 09:51:55 +01:00

README.md

LibFPrint

LibFPrint is part of the FPrint project.


Button Website Button Documentation

Button Supported Button Unsupported

Button Contribute Button Contributors

History

LibFPrint was originally developed as part of an academic project at the University Of Manchester.

It aimed to hide the differences between consumer fingerprint scanners and provide a single uniform API to application developers.

Goal

The ultimate goal of the FPrint project is to make fingerprint scanners widely and easily usable under common Linux environments.

License

Section 6 of the license states that for compiled works that use this library, such works must include LibFPrint copyright notices alongside the copyright notices for the other parts of the work.

LibFPrint includes code from NIST's NBIS software distribution.

We include Bozorth3 from the US Export Controlled distribution, which we have determined to be fine being shipped in an open source project.

Get in touch

  • IRC - #fprint @ irc.oftc.net
  • Matrix - #fprint:matrix.org bridged to the IRC channel
  • MailingList - low traffic, not much used these days

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