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Mat Martineau says: ==================== mptcp: TCP fallback for established connections RFC 8684 allows some MPTCP connections to fall back to regular TCP when the MPTCP DSS checksum detects middlebox interference, there is only a single subflow, and there is no unacknowledged out-of-sequence data. When this condition is detected, the stack sends a MPTCP DSS option with an "infinite mapping" to signal that a fallback is happening, and the peers will stop sending MPTCP options in their TCP headers. The Linux MPTCP stack has not yet supported this type of fallback, instead closing the connection when the MPTCP checksum fails. This series adds support for fallback to regular TCP in a more limited scenario, for only MPTCP connections that have never connected additional subflows or transmitted out-of-sequence data. The selftests are also updated to check new MIBs that track infinite mappings. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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| init | ||
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| kernel | ||
| lib | ||
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| .gitignore | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.