linux/net/mptcp
Matthieu Baerts 67b12f792d mptcp: full fully established support after ADD_ADDR
If directly after an MP_CAPABLE 3WHS, the client receives an ADD_ADDR
with HMAC from the server, it is enough to switch to a "fully
established" mode because it has received more MPTCP options.

It was then OK to enable the "fully_established" flag on the MPTCP
socket. Still, best to check if the ADD_ADDR looks valid by looking if
it contains an HMAC (no 'echo' bit). If an ADD_ADDR echo is received
while we are not in "fully established" mode, it is strange and then
we should not switch to this mode now.

But that is not enough. On one hand, the path-manager has be notified
the state has changed. On the other hand, the "fully_established" flag
on the subflow socket should be turned on as well not to re-send the
MP_CAPABLE 3rd ACK content with the next ACK.

Fixes: 84dfe3677a ("mptcp: send out dedicated ADD_ADDR packet")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-19 12:16:54 +01:00
..
crypto_test.c mptcp: move crypto test to KUNIT 2020-06-26 16:21:39 -07:00
crypto.c kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
ctrl.c mptcp: add sysctl allow_join_initial_addr_port 2021-06-22 14:36:01 -07:00
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: properly account bulk freed memory 2021-07-09 18:38:53 -07:00
mib.h mptcp: properly account bulk freed memory 2021-07-09 18:38:53 -07:00
mptcp_diag.c net: Use nlmsg_unicast() instead of netlink_unicast() 2021-07-13 09:28:29 -07:00
options.c mptcp: full fully established support after ADD_ADDR 2021-08-19 12:16:54 +01:00
pm_netlink.c mptcp: fix memory leak on address flush 2021-08-19 12:16:54 +01:00
pm.c mptcp: add deny_join_id0 in mptcp_options_received 2021-06-22 14:36:01 -07:00
protocol.c mptcp: properly account bulk freed memory 2021-07-09 18:38:53 -07:00
protocol.h mptcp: properly account bulk freed memory 2021-07-09 18:38:53 -07:00
sockopt.c net: sock: extend SO_TIMESTAMPING for PHC binding 2021-07-01 13:08:18 -07:00
subflow.c mptcp: fix syncookie process if mptcp can not_accept new subflow 2021-07-09 18:38:53 -07:00
syncookies.c mptcp: fix warning in __skb_flow_dissect() when do syn cookie for subflow join 2021-07-09 18:38:53 -07:00
token_test.c mptcp: introduce token KUNIT self-tests 2020-06-26 16:21:39 -07:00
token.c mptcp: using TOKEN_MAX_RETRIES instead of magic number 2021-05-28 13:59:15 -07:00