diff options
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 6fb25693c00b..86957e9cd6c6 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -302,6 +302,8 @@ static void proc_configure_early_demux(int enabled, int protocol) struct inet6_protocol *ip6prot; #endif + rcu_read_lock(); + ipprot = rcu_dereference(inet_protos[protocol]); if (ipprot) ipprot->early_demux = enabled ? ipprot->early_demux_handler : @@ -313,6 +315,7 @@ static void proc_configure_early_demux(int enabled, int protocol) ip6prot->early_demux = enabled ? ip6prot->early_demux_handler : NULL; #endif + rcu_read_unlock(); } static int proc_tcp_early_demux(struct ctl_table *table, int write, @@ -347,6 +350,19 @@ static int proc_udp_early_demux(struct ctl_table *table, int write, return ret; } +static int proc_tfo_blackhole_detect_timeout(struct ctl_table *table, + int write, + void __user *buffer, + size_t *lenp, loff_t *ppos) +{ + int ret; + + ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos); + if (write && ret == 0) + tcp_fastopen_active_timeout_reset(); + return ret; +} + static struct ctl_table ipv4_table[] = { { .procname = "tcp_timestamps", @@ -397,6 +413,14 @@ static struct ctl_table ipv4_table[] = { .proc_handler = proc_tcp_fastopen_key, }, { + .procname = "tcp_fastopen_blackhole_timeout_sec", + .data = &sysctl_tcp_fastopen_blackhole_timeout, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_tfo_blackhole_detect_timeout, + .extra1 = &zero, + }, + { .procname = "tcp_abort_on_overflow", .data = &sysctl_tcp_abort_on_overflow, .maxlen = sizeof(int), |