ipv4: Add a sysctl to control multipath hash fields

[linux-2.6-microblaze.git] / net / ipv4 / sysctl_net_ipv4.c

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index a62934b..45bab37 100644 (file)
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -19,6 +19,7 @@
 #include <net/snmp.h>
 #include <net/icmp.h>
 #include <net/ip.h>
+#include <net/ip_fib.h>
 #include <net/route.h>
 #include <net/tcp.h>
 #include <net/udp.h>
@@ -48,6 +49,8 @@ static int ip_ping_group_range_min[] = { 0, 0 };
 static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
 static u32 u32_max_div_HZ = UINT_MAX / HZ;
 static int one_day_secs = 24 * 3600;
+static u32 fib_multipath_hash_fields_all_mask __maybe_unused =
+       FIB_MULTIPATH_HASH_FIELD_ALL_MASK;
 
 /* obsolete */
 static int sysctl_tcp_low_latency __read_mostly;
@@ -1052,6 +1055,15 @@ static struct ctl_table ipv4_net_table[] = {
                .extra1         = SYSCTL_ZERO,
                .extra2         = &two,
        },
+       {
+               .procname       = "fib_multipath_hash_fields",
+               .data           = &init_net.ipv4.sysctl_fib_multipath_hash_fields,
+               .maxlen         = sizeof(u32),
+               .mode           = 0644,
+               .proc_handler   = proc_douintvec_minmax,
+               .extra1         = SYSCTL_ONE,
+               .extra2         = &fib_multipath_hash_fields_all_mask,
+       },
 #endif
        {
                .procname       = "ip_unprivileged_port_start",