diff options
| author |   Paolo Abeni <pabeni@redhat.com> | 2021-10-15 16:05:51 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-10-16 08:46:08 +0100 |
| commit | 72bcbc46a5c385961b9c167db79ad1f38f04e6a7 (patch) | |
| tree | 7da655849e7ce9d0667b2c39f76e51153fb217ee /net/mptcp | |
| parent | mptcp: Avoid NULL dereference in mptcp_getsockopt_subflow_addrs() (diff) | |
| download | linux-dev-72bcbc46a5c385961b9c167db79ad1f38f04e6a7.tar.xz linux-dev-72bcbc46a5c385961b9c167db79ad1f38f04e6a7.zip | |
mptcp: increase default max additional subflows to 2
The current default does not allowing additional subflows, mostly
as a safety restriction to avoid uncontrolled resource consumption
on busy servers.
Still the system admin and/or the application have to opt-in to
MPTCP explicitly. After that, they need to change (increase) the
default maximum number of additional subflows.
Let set that to reasonable default, and make end-users life easier.
Additionally we need to update some self-tests accordingly.
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>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/pm_netlink.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 050eea231528..f7d33a9abd57 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -2052,6 +2052,9 @@ static int __net_init pm_nl_init_net(struct net *net) struct pm_nl_pernet *pernet = net_generic(net, pm_nl_pernet_id); INIT_LIST_HEAD_RCU(&pernet->local_addr_list); + + /* Cit. 2 subflows ought to be enough for anybody. */ + pernet->subflows_max = 2; pernet->next_id = 1; pernet->stale_loss_cnt = 4; spin_lock_init(&pernet->lock); |