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mptcpd 0.8
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@ossama-othman ossama-othman released this 24 Sep 15:51
· 82 commits to master since this release
v0.8
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Learn about vigilant mode.

  • The mptcpd library API now splits path management operations specific to the in-kernel path manager found in the upstream Linux kernel into a separate "mptcpd_kpm" API namespace to differentiate ADD_ADDR and REMOVE_ADDR related operations between the in-kernel and user space cases. The operations for the two are different and have different use cases.

  • Two new mptcpd command line arguments were added: "--addr-flags" and "--notify-flags", along with the equivalent settings in the mptcpd system configuration file (e.g., /etc/mptcpd/mptcpd.conf). "addr-flags" are used when announcing an IP address. Similar flags are used by the "ip mptcp" sub-command. See the ip-mptcp(8) and man page for further details on these address related flags. "notify-flags" provides for further control over how plugins are notified of changes to local IP addresses. See the mptcpd(8) man page shipped with this mptcpd release for further details.

  • Improve the mptcpd "addr_adv" plugin by making it set suitable MPTCP resource limits in the kernel, such as expanding the maximum number of subflows to allow subflows associated with advertised IP addresses to be created.

  • The mptcpd plugin directory name in the mptcpd system configuration file may now be left empty to improve "multilib" support found in some Linux distributions. A compile-time default will be used if no plugin directory name is found in the mptcpd system configuration file or the mptcpd command line options.

  • Mptcpd command line options now properly take precedence over the corresponding mptcpd system configuration setting. This addresses an issue that prevented mptcpd from starting if a required setting was not specified in the mptcpd system configuration file even though the same setting was configured through the mptcpd command line.

  • A new "mptcpize" program was added that allows legacy TCP-only applications to transparently use MPTCP by either of the following approaches:

    • leverage library inter-positioning to transparently replace TCP socket calls with their MPTCP counterparts.
    • enable or disable TCP to MPTCP socket conversion through an existing systemd unit file.

  • Build regressions against ELL versions 0.31 and 0.33 were corrected.

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