[MPTCP] Re: [MPTCP][PATCH v3 mptcp-next 3/6] mptcp: add set_flags command in PM netlink

[MPTCP] Re: [MPTCP][PATCH v3 mptcp-next 3/6] mptcp: add set_flags command in PM netlink

[Mat Martineau]

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On Wed, 9 Dec 2020, Geliang Tang wrote:

> This patch added a new command MPTCP_PM_CMD_SET_FLAGS in PM netlink:
>
> In mptcp_nl_cmd_set_flags, parse the input address, get the backup value
> according to whether the address's FLAG_BACKUP flag is set from the
> user-space. Then check whether this address had been added in the local
> address list. If it had been, then call mptcp_nl_addr_backup to deal with
> this address.
>
> In mptcp_nl_addr_backup, traverse all the existing msk sockets to find
> the relevant sockets, and call mptcp_pm_nl_mp_prio_send_ack to send out
> a MP_PRIO ACK packet.
>
> Finally in mptcp_nl_cmd_set_flags, set or clear the address's FLAG_BACKUP
> flag.
>
> Signed-off-by: Geliang Tang <geliangtang(a)gmail.com>
> ---
> include/uapi/linux/mptcp.h |  1 +
> net/mptcp/pm_netlink.c     | 65 ++++++++++++++++++++++++++++++++++++++
> 2 files changed, 66 insertions(+)
>

One more thing: we should have iproute2 patches ready before sending this 
series to netdev.

--
Mat Martineau
Intel