static int zero;
static int one = 1;
static int four = 4;
+static int thousand = 1000;
static int gso_max_segs = GSO_MAX_SEGS;
static int tcp_retr1_max = 255;
static int ip_local_port_range_min[] = { 1, 1 };
/* Update system visible IP port range */
static void set_local_port_range(struct net *net, int range[2])
{
- write_seqlock(&net->ipv4.ip_local_ports.lock);
+ bool same_parity = !((range[0] ^ range[1]) & 1);
+
+ write_seqlock_bh(&net->ipv4.ip_local_ports.lock);
+ if (same_parity && !net->ipv4.ip_local_ports.warned) {
+ net->ipv4.ip_local_ports.warned = true;
+ pr_err_ratelimited("ip_local_port_range: prefer different parity for start/end values.\n");
+ }
net->ipv4.ip_local_ports.range[0] = range[0];
net->ipv4.ip_local_ports.range[1] = range[1];
- write_sequnlock(&net->ipv4.ip_local_ports.lock);
+ write_sequnlock_bh(&net->ipv4.ip_local_ports.lock);
}
/* Validate changes from /proc interface. */
.mode = 0644,
.proc_handler = proc_dointvec
},
+ {
+ .procname = "tcp_recovery",
+ .data = &sysctl_tcp_recovery,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
{
.procname = "tcp_reordering",
.data = &sysctl_tcp_reordering,
.mode = 0644,
.proc_handler = proc_dointvec
},
+ {
+ .procname = "tcp_min_rtt_wlen",
+ .data = &sysctl_tcp_min_rtt_wlen,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
{
.procname = "tcp_low_latency",
.data = &sysctl_tcp_low_latency,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = &zero,
+ .extra1 = &one,
.extra2 = &gso_max_segs,
},
+ {
+ .procname = "tcp_pacing_ss_ratio",
+ .data = &sysctl_tcp_pacing_ss_ratio,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &thousand,
+ },
+ {
+ .procname = "tcp_pacing_ca_ratio",
+ .data = &sysctl_tcp_pacing_ca_ratio,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &thousand,
+ },
{
.procname = "tcp_autocorking",
.data = &sysctl_tcp_autocorking,
.mode = 0644,
.proc_handler = proc_dointvec
},
+ {
+ .procname = "tcp_ecn_fallback",
+ .data = &init_net.ipv4.sysctl_tcp_ecn_fallback,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
{
.procname = "ip_local_port_range",
.maxlen = sizeof(init_net.ipv4.ip_local_ports.range),
.mode = 0644,
.proc_handler = proc_dointvec,
},
+ {
+ .procname = "igmp_link_local_mcast_reports",
+ .data = &sysctl_igmp_llm_reports,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
{ }
};