Geliang Tang 3095f4e8cc mptcp: update local address flags when setting it
commit e0266319413d5d687ba7b6df7ca99e4b9724a4f2 upstream.

Just like in-kernel pm, when userspace pm does set_flags, it needs to send
out MP_PRIO signal, and also modify the flags of the corresponding address
entry in the local address list. This patch implements the missing logic.

Traverse all address entries on userspace_pm_local_addr_list to find the
local address entry, if bkup is true, set the flags of this entry with
FLAG_BACKUP, otherwise, clear FLAG_BACKUP.

Fixes: 892f396c8e ("mptcp: netlink: issue MP_PRIO signals from userspace PMs")
Cc: stable@vger.kernel.org
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20241112-net-mptcp-misc-6-12-pm-v1-1-b835580cefa8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[ Conflicts in pm_userspace.c, because commit 6a42477fe449 ("mptcp:
  update set_flags interfaces"), is not in this version, and causes too
  many conflicts when backporting it. The same code can still be added
  at the same place, before sending the ACK. ]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-22 15:37:33 +01:00
2022-09-28 09:02:20 +02:00
2024-11-17 15:07:22 +01:00

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