From: Hans Dedecker <dedeckeh@gmail.com>
Date: Mon, 28 Sep 2015 06:51:06 +0000 (+0200)
Subject: interface-ip: Re-enable iif lo policy rules after main table lookup
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=97542f03f2c6750dc454b660c6c6331ba9377506

interface-ip: Re-enable iif lo policy rules after main table lookup
---

diff --git a/interface-ip.c b/interface-ip.c
index a177557..51a44ac 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -133,6 +133,23 @@ static int set_ip_source_policy(bool add, bool v6, unsigned int priority,
 	return (add) ? system_add_iprule(&rule) : system_del_iprule(&rule);
 }
 
+static int set_ip_lo_policy(bool add, bool v6, struct interface *iface)
+{
+	struct iprule rule = {
+		.flags = IPRULE_IN | IPRULE_LOOKUP | IPRULE_PRIORITY,
+		.priority = IPRULE_PRIORITY_NW + iface->l3_dev.dev->ifindex,
+		.lookup = (v6) ? iface->ip6table : iface->ip4table,
+		.in_dev = "lo"
+	};
+
+	if (!rule.lookup)
+		return 0;
+
+	rule.flags |= (v6) ? IPRULE_INET6 : IPRULE_INET4;
+
+	return (add) ? system_add_iprule(&rule) : system_del_iprule(&rule);
+}
+
 static bool
 __find_ip_addr_target(struct interface_ip_settings *ip, union if_addr *a, bool v6)
 {
@@ -1283,9 +1300,13 @@ void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
 			if (!strcmp(a->name, ip->iface->name))
 				interface_set_prefix_address(a, c, ip->iface, enabled);
 
-	if (ip->iface && ip->iface->l3_dev.dev)
+	if (ip->iface && ip->iface->l3_dev.dev) {
+		set_ip_lo_policy(enabled, true, ip->iface);
+		set_ip_lo_policy(enabled, false, ip->iface);
+
 		set_ip_source_policy(enabled, true, IPRULE_PRIORITY_REJECT + ip->iface->l3_dev.dev->ifindex,
 			NULL, 0, 0, ip->iface, "failed_policy");
+	}
 }
 
 void
diff --git a/iprule.h b/iprule.h
index e1ac84b..ea87193 100644
--- a/iprule.h
+++ b/iprule.h
@@ -18,7 +18,7 @@
 #include "interface-ip.h"
 
 #define IPRULE_PRIORITY_ADDR 10000
-#define IPRULE_PRIORITY_NW 20000
+#define IPRULE_PRIORITY_NW 90000
 #define IPRULE_PRIORITY_REJECT 4200000000
 
 enum iprule_flags {