19820416316

Committed 01 Dec 2025 11:04AM UTC coverage: 67.014% (-0.03%) from 67.044%

Build # 19820416316

Build Type

push

github

Committed by

web-flow

Commit Message

plugin: expose subflow error to plugins (#331)

* plugin: expose subflow error to plugins

Add error parameter to subflow_closed callback to allow plugins
to identify the reason for subflow closure, such as network errors.

The error value corresponds to the MPTCP_ATTR_ERROR attribute from
the kernel, which equals sk_err from struct sock. If the error
attribute is not present in the netlink message, it defaults to 0.

Fixes #330

* Improve error parameter documentation and test coverage

- Add non-zero test value (110) for test_error_4 to verify different values
- Enhance error parameter documentation to clarify it's an errno from sk_err
- Update both public and private plugin headers with detailed description

Coverage Stats

1 of 2 new or added lines in 2 files covered. (50.0%)

66 existing lines in 1 file now uncovered.

1481 of 2210 relevant lines covered (67.01%)

18.05 hits per line

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29.17

/src/path_manager.c

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multipath-tcp / mptcpd / 19820416316

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