iovisor/bcc

Only trace ipv4 not working without kernel CONF_IPV6 set

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#5,192 建立於 2025年1月17日

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help wanted

描述

I have a systematic issue to use only trace IPv4 family for tcpconnect and network performance tools. A python error code notices that ipv6 structs are undefined...

So I am not able to use network tools because my kernel do not compile conf_ipv6. Is it normal? Network BCC tools hard depends on CONF_IPV6 ? It wasn't written to readme requierments so I am asking if they is a way to do it without this dependency. Perhaps I can rewrite your python codes to exclude ipv6 support.

BCC is an amazing tools suites. Good continuation.

Best regard,

貢獻者指南

技術棧
pythonc
領域
backendperformanceobservability
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
PythonBCC basicsKernel IPv6 configuration
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
The issue involves BCC network tools (e.g., tcpconnect) that fail when IPv6 kernel support is disabled. The reporter suggests modifying Python code to conditionally skip IPv6 structs. To address this, investigate the Python scripts in the tools/ directory for imports of IPv6 related BPF structures. Consider adding a compile time or runtime check for CONFIG IPV6 to conditionally exclude IPv6 code. There are no existing PRs or comments indicating work in progress.
Only trace ipv4 not working without kernel CONF_IPV6 set · iovisor/bcc#5192 | Good First Issue