17528012028
73%

Ran 07 Sep 2025 11:49AM UTC

Jobs 1

Files 77

Run time 1min

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Committed 07 Sep 2025 11:37AM UTC coverage: 73.348% (-0.09%) from 73.438%

Build # 17528012028

Build Type

push

github

Committed by

web-flow

Commit Message

fix(bpf): Correctly parse IP headers with options (#337)

* feat(bpf): Improve PID attribution and IP parsing

This commit introduces several improvements to the eBPF probe to enhance robustness and feature completeness.

- feat: Add fallback for PID attribution
  Uses `bpf_get_current_task()` as a fallback mechanism to resolve the process ID for a packet. This significantly improves PID attribution for scenarios where the primary flow-based mapping might fail, such as with short-lived connections. Includes a check for kernel support to ensure backward compatibility.

- fix: Correctly parse IP headers with options
  The IP header length is now dynamically calculated based on the IHL (Internet Header Length) field. This fixes a bug where packets with IP options would be parsed incorrectly, leading to errors in L4 (TCP/UDP) header analysis.

- chore: Clean up debug logs
  Commented out several `debug_log` statements to reduce noise and performance overhead.

* refactor(bpf): Remove unsafe PID fallback

Removes the PID fallback mechanism that uses bpf_get_current_task().
This is unsafe without a reliable way to detect interrupt context (e.g., bpf_in_interrupt()),
as it can lead to incorrect PID association.
The explanatory comment is updated to reflect this.

Run Details

4907 of 6690 relevant lines covered (73.35%)

0.82 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
1	79.17	-0.35%	internal/metadata/container/containerd/containerd.go
5	79.82	-2.19%	internal/metadata/container/docker/docker.go

Jobs

ID	Job ID	Ran	Files	Coverage
1	17528012028.1	07 Sep 2025 11:49AM UTC	77	73.35	GitHub Action Run

mozillazg / ptcpdump / 17528012028
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mozillazg / ptcpdump / 17528012028 73%

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mozillazg / ptcpdump / 17528012028
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