netifd: Add acceptlocal config support

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

diff --git a/system-linux.c b/system-linux.c
index bb7ccf9..83827d5 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -270,6 +270,11 @@ static void system_set_rpfilter(struct device *dev, const char *val)
        system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev->ifname, val);
 }
 
+static void system_set_acceptlocal(struct device *dev, const char *val)
+{
+       system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev->ifname, val);
+}
+
 static int system_get_sysctl(const char *path, char *buf, const size_t buf_sz)
 {
        int fd = -1, ret = -1;
@@ -310,6 +315,12 @@ static int system_get_rpfilter(struct device *dev, char *buf, const size_t buf_s
                        dev->ifname, buf, buf_sz);
 }
 
+static int system_get_acceptlocal(struct device *dev, char *buf, const size_t buf_sz)
+{
+       return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
+                       dev->ifname, buf, buf_sz);
+}
+
 // Evaluate netlink messages
 static int cb_rtnl_event(struct nl_msg *msg, void *arg)
 {
@@ -969,6 +980,11 @@ system_if_get_settings(struct device *dev, struct device_settings *s)
                s->rpfilter = strtoul(buf, NULL, 0);
                s->flags |= DEV_OPT_RPFILTER;
        }
+
+       if (!system_get_acceptlocal(dev, buf, sizeof(buf))) {
+               s->acceptlocal = strtoul(buf, NULL, 0);
+               s->flags |= DEV_OPT_ACCEPTLOCAL;
+       }
 }
 
 void
@@ -1010,6 +1026,8 @@ system_if_apply_settings(struct device *dev, struct device_settings *s, unsigned
                snprintf(buf, sizeof(buf), "%d", s->rpfilter);
                system_set_rpfilter(dev, buf);
        }
+       if (s->flags & DEV_OPT_ACCEPTLOCAL & apply_mask)
+               system_set_acceptlocal(dev, s->acceptlocal ? "1" : "0");
 }
 
 int system_if_up(struct device *dev)