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-rw-r--r--include/net/fib_rules.h4
-rw-r--r--net/core/fib_rules.c8
-rw-r--r--net/decnet/dn_rules.c7
-rw-r--r--net/ipv4/fib_rules.c6
4 files changed, 25 insertions, 0 deletions
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 08bab8b6e57..ed3a8872c6c 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -59,6 +59,10 @@ struct fib_rules_ops
u32 (*default_pref)(void);
size_t (*nlmsg_payload)(struct fib_rule *);
+ /* Called after modifications to the rules set, must flush
+ * the route cache if one exists. */
+ void (*flush_cache)(void);
+
int nlgroup;
struct nla_policy *policy;
struct list_head *rules_list;
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 5824b2644f2..cb2dae19531 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -44,6 +44,12 @@ static void rules_ops_put(struct fib_rules_ops *ops)
module_put(ops->owner);
}
+static void flush_route_cache(struct fib_rules_ops *ops)
+{
+ if (ops->flush_cache)
+ ops->flush_cache();
+}
+
int fib_rules_register(struct fib_rules_ops *ops)
{
int err = -EEXIST;
@@ -314,6 +320,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
list_add_rcu(&rule->list, ops->rules_list);
notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).pid);
+ flush_route_cache(ops);
rules_ops_put(ops);
return 0;
@@ -404,6 +411,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
notify_rule_change(RTM_DELRULE, rule, ops, nlh,
NETLINK_CB(skb).pid);
fib_rule_put(rule);
+ flush_route_cache(ops);
rules_ops_put(ops);
return 0;
}
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index fd0cc2aa316..7f58b95b27d 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -31,6 +31,7 @@
#include <net/dn_fib.h>
#include <net/dn_neigh.h>
#include <net/dn_dev.h>
+#include <net/dn_route.h>
static struct fib_rules_ops dn_fib_rules_ops;
@@ -239,6 +240,11 @@ static u32 dn_fib_rule_default_pref(void)
return 0;
}
+static void dn_fib_rule_flush_cache(void)
+{
+ dn_rt_cache_flush(0);
+}
+
static struct fib_rules_ops dn_fib_rules_ops = {
.family = AF_DECnet,
.rule_size = sizeof(struct dn_fib_rule),
@@ -249,6 +255,7 @@ static struct fib_rules_ops dn_fib_rules_ops = {
.compare = dn_fib_rule_compare,
.fill = dn_fib_rule_fill,
.default_pref = dn_fib_rule_default_pref,
+ .flush_cache = dn_fib_rule_flush_cache,
.nlgroup = RTNLGRP_DECnet_RULE,
.policy = dn_fib_rule_policy,
.rules_list = &dn_fib_rules,
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index b021b3440ca..fe29b98d6c8 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -298,6 +298,11 @@ static size_t fib4_rule_nlmsg_payload(struct fib_rule *rule)
+ nla_total_size(4); /* flow */
}
+static void fib4_rule_flush_cache(void)
+{
+ rt_cache_flush(0);
+}
+
static struct fib_rules_ops fib4_rules_ops = {
.family = AF_INET,
.rule_size = sizeof(struct fib4_rule),
@@ -309,6 +314,7 @@ static struct fib_rules_ops fib4_rules_ops = {
.fill = fib4_rule_fill,
.default_pref = fib4_rule_default_pref,
.nlmsg_payload = fib4_rule_nlmsg_payload,
+ .flush_cache = fib4_rule_flush_cache,
.nlgroup = RTNLGRP_IPV4_RULE,
.policy = fib4_rule_policy,
.rules_list = &fib4_rules,