linux-stable/net/mptcp
Paolo Abeni 987858e5d0 mptcp: ignore unsupported msg flags
Currently mptcp_sendmsg() fails with EOPNOTSUPP if the
user-space provides some unsupported flag. That is unexpected
and may foul existing applications migrated to MPTCP, which
expect a different behavior.

Change the mentioned function to silently ignore the unsupported
flags except MSG_FASTOPEN. This is the only flags currently not
supported by MPTCP with user-space visible side-effects.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/162
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23 14:06:32 -07:00
..
crypto.c kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
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
Kconfig kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
Makefile kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -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: add tracepoint in ack_update_msk 2021-04-16 17:10:40 -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: ignore unsupported msg flags 2021-04-23 14:06:32 -07:00
protocol.h mptcp: export mptcp_subflow_active 2021-04-16 17:10:40 -07:00
sockopt.c mptcp: sockopt: add TCP_CONGESTION and TCP_INFO 2021-04-16 15:23:10 -07:00
subflow.c mptcp: add tracepoint in subflow_check_data_avail 2021-04-16 17:10:40 -07:00
syncookies.c mptcp: fix syncookie build error on UP 2020-08-01 11:52:55 -07:00
token.c kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
token_test.c mptcp: introduce token KUNIT self-tests 2020-06-26 16:21:39 -07:00