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authorGeliang Tang <geliangtang@gmail.com>2020-11-03 11:05:07 -0800
committerJakub Kicinski <kuba@kernel.org>2020-11-04 17:45:53 -0800
commit93f323b9cccc1fc77660de49faefd11fdfd55017 (patch)
tree72897fd229efd086becb0a6c59fef9a115ffc9c1 /net/mptcp/ctrl.c
parent95ed690ebc72ad6c89068f08197b51fe4d3c3b48 (diff)
mptcp: add a new sysctl add_addr_timeout
This patch added a new sysctl, named add_addr_timeout, to control the timeout value (in seconds) of the ADD_ADDR retransmission. Suggested-by: Matthieu Baerts <matthieu.baerts@tessares.net> Suggested-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/ctrl.c')
-rw-r--r--net/mptcp/ctrl.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/mptcp/ctrl.c b/net/mptcp/ctrl.c
index 54b888f94009..96ba616f59bf 100644
--- a/net/mptcp/ctrl.c
+++ b/net/mptcp/ctrl.c
@@ -18,6 +18,7 @@ struct mptcp_pernet {
struct ctl_table_header *ctl_table_hdr;
int mptcp_enabled;
+ unsigned int add_addr_timeout;
};
static struct mptcp_pernet *mptcp_get_pernet(struct net *net)
@@ -30,6 +31,11 @@ int mptcp_is_enabled(struct net *net)
return mptcp_get_pernet(net)->mptcp_enabled;
}
+unsigned int mptcp_get_add_addr_timeout(struct net *net)
+{
+ return mptcp_get_pernet(net)->add_addr_timeout;
+}
+
static struct ctl_table mptcp_sysctl_table[] = {
{
.procname = "enabled",
@@ -40,12 +46,19 @@ static struct ctl_table mptcp_sysctl_table[] = {
*/
.proc_handler = proc_dointvec,
},
+ {
+ .procname = "add_addr_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
{}
};
static void mptcp_pernet_set_defaults(struct mptcp_pernet *pernet)
{
pernet->mptcp_enabled = 1;
+ pernet->add_addr_timeout = TCP_RTO_MAX;
}
static int mptcp_pernet_new_table(struct net *net, struct mptcp_pernet *pernet)
@@ -61,6 +74,7 @@ static int mptcp_pernet_new_table(struct net *net, struct mptcp_pernet *pernet)
}
table[0].data = &pernet->mptcp_enabled;
+ table[1].data = &pernet->add_addr_timeout;
hdr = register_net_sysctl(net, MPTCP_SYSCTL_PATH, table);
if (!hdr)