OpenCloudOS-Kernel/net/mptcp
Florian Westphal 7896248983 mptcp: add skeleton to sync msk socket options to subflows
Handle following cases:
1. setsockopt is called with multiple subflows.
   Change might have to be mirrored to all of them.
   This is done directly in process context/setsockopt call.
2. Outgoing subflow is created after one or several setsockopt()
   calls have been made.  Old setsockopt changes should be
   synced to the new socket.
3. Incoming subflow, after setsockopt call(s).

Cases 2 and 3 are handled right after the join list is spliced to the conn
list.

Not all sockopt values can be just be copied by value, some require
helper calls.  Those can acquire socket lock (which can sleep).

If the join->conn list splicing is done from preemptible context,
synchronization can be done right away, otherwise its deferred to work
queue.

Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16 15:23:10 -07:00
..
Kconfig mptcp: depends on IPV6 but not as a module 2020-10-21 08:05:40 -07:00
Makefile mptcp: move sockopt function into a new file 2021-04-16 15:23:09 -07:00
crypto.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
crypto_test.c mptcp: move crypto test to KUNIT 2020-06-26 16:21:39 -07:00
ctrl.c mptcp: add a new sysctl add_addr_timeout 2020-11-04 17:45:53 -08:00
diag.c mptcp: allow dumping subflow context to userspace 2020-03-29 22:14:48 -07:00
mib.c mptcp: add active MPC mibs 2021-04-02 14:21:50 -07:00
mib.h mptcp: add active MPC mibs 2021-04-02 14:21:50 -07:00
mptcp_diag.c mptcp: add local addr info in mptcp_info 2021-02-15 15:09:14 -08:00
options.c mptcp: drop all sub-options except ADD_ADDR when the echo bit is set 2021-04-07 14:09:40 -07:00
pm.c mptcp: rename mptcp_pm_nl_add_addr_send_ack 2021-03-26 15:05:15 -07:00
pm_netlink.c mptcp: move flags and ifindex out of mptcp_addr_info 2021-04-07 14:09:39 -07:00
protocol.c mptcp: add skeleton to sync msk socket options to subflows 2021-04-16 15:23:10 -07:00
protocol.h mptcp: add skeleton to sync msk socket options to subflows 2021-04-16 15:23:10 -07:00
sockopt.c mptcp: add skeleton to sync msk socket options to subflows 2021-04-16 15:23:10 -07:00
subflow.c mptcp: add skeleton to sync msk socket options to subflows 2021-04-16 15:23:10 -07:00
syncookies.c mptcp: fix syncookie build error on UP 2020-08-01 11:52:55 -07:00
token.c mptcp: token: fix unititialized variable 2020-11-03 13:08:30 -08:00
token_test.c mptcp: introduce token KUNIT self-tests 2020-06-26 16:21:39 -07:00