netifd: Add option to configure locktime for each device

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index e0cb5bc..f4d6c25 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -316,6 +316,11 @@ static void system_set_neigh6gcstaletime(struct device *dev, const char *val)
        system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev->ifname, val);
 }
 
+static void system_set_neigh4locktime(struct device *dev, const char *val)
+{
+       system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", dev->ifname, val);
+}
+
 static void system_set_dadtransmits(struct device *dev, const char *val)
 {
        system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev->ifname, val);
@@ -484,6 +489,12 @@ static int system_get_neigh6gcstaletime(struct device *dev, char *buf, const siz
                        dev->ifname, buf, buf_sz);
 }
 
+static int system_get_neigh4locktime(struct device *dev, char *buf, const size_t buf_sz)
+{
+       return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
+                       dev->ifname, buf, buf_sz);
+}
+
 static int system_get_dadtransmits(struct device *dev, char *buf, const size_t buf_sz)
 {
        return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
@@ -1345,6 +1356,11 @@ system_if_get_settings(struct device *dev, struct device_settings *s)
                s->flags |= DEV_OPT_NEIGHREACHABLETIME;
        }
 
+       if (!system_get_neigh4locktime(dev, buf, sizeof(buf))) {
+               s->neigh4locktime = strtoul(buf, NULL, 0);
+               s->flags |= DEV_OPT_NEIGHLOCKTIME;
+       }
+
        if (!system_get_neigh4gcstaletime(dev, buf, sizeof(buf))) {
                s->neigh4gcstaletime = strtoul(buf, NULL, 0);
                s->flags |= DEV_OPT_NEIGHGCSTALETIME;
@@ -1454,6 +1470,10 @@ system_if_apply_settings(struct device *dev, struct device_settings *s, unsigned
                snprintf(buf, sizeof(buf), "%d", s->neigh6reachabletime);
                system_set_neigh6reachabletime(dev, buf);
        }
+       if (s->flags & DEV_OPT_NEIGHLOCKTIME & apply_mask) {
+               snprintf(buf, sizeof(buf), "%d", s->neigh4locktime);
+               system_set_neigh4locktime(dev, buf);
+       }
        if (s->flags & DEV_OPT_NEIGHGCSTALETIME & apply_mask) {
                snprintf(buf, sizeof(buf), "%d", s->neigh4gcstaletime);
                system_set_neigh4gcstaletime(dev, buf);