ROX-33222: handle multiple hardlinks

[ovalenti]

Description

When files are tracked via their inode (host), we need to take into account that access may be done using a dentry (path) that is not the monitored one. Also, we need to adapt the kernel "monitored" inode life-cycle to verify if there are paths still monitored. The host_scanner model has to be updated to support several paths per inode.

Checklist

• Patch has a change log entry OR does not need one.
• Investigated and inspected CI test results
• Updated documentation accordingly

Automated testing

• Added unit tests
• Added integration tests
• Added regression tests

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yml

Review profile: CHILL

Plan: Enterprise

Run ID: 601ad3b8-76ec-4c38-9f78-28f2cc7aa6ed

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

_{Comment @coderabbitai help to get the list of available commands.}

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 127 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.90%. Comparing base (d1ad908) to head (9a2b772).

Files with missing lines	Patch %	Lines
fact/src/host_scanner.rs	0.00%	117 Missing ⚠️
fact/src/event/mod.rs	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1468      +/-   ##
==========================================
- Coverage   34.52%   33.90%   -0.63%     
==========================================
  Files          22       22              
  Lines        3325     3386      +61     
  Branches     3325     3386      +61     
==========================================
  Hits         1148     1148              
- Misses       2172     2233      +61     
  Partials        5        5              

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.