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Diffstat (limited to 'net/ipv4/fib_rules.c')
-rw-r--r--net/ipv4/fib_rules.c39
1 files changed, 27 insertions, 12 deletions
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 2d043f71ef70..a83d74e498d2 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -47,14 +47,7 @@ struct fib4_rule {
#endif
};
-#ifdef CONFIG_IP_ROUTE_CLASSID
-u32 fib_rules_tclass(const struct fib_result *res)
-{
- return res->r ? ((struct fib4_rule *) res->r)->tclassid : 0;
-}
-#endif
-
-int fib_lookup(struct net *net, struct flowi4 *flp, struct fib_result *res)
+int __fib_lookup(struct net *net, struct flowi4 *flp, struct fib_result *res)
{
struct fib_lookup_arg arg = {
.result = res,
@@ -63,11 +56,15 @@ int fib_lookup(struct net *net, struct flowi4 *flp, struct fib_result *res)
int err;
err = fib_rules_lookup(net->ipv4.rules_ops, flowi4_to_flowi(flp), 0, &arg);
- res->r = arg.rule;
-
+#ifdef CONFIG_IP_ROUTE_CLASSID
+ if (arg.rule)
+ res->tclassid = ((struct fib4_rule *)arg.rule)->tclassid;
+ else
+ res->tclassid = 0;
+#endif
return err;
}
-EXPORT_SYMBOL_GPL(fib_lookup);
+EXPORT_SYMBOL_GPL(__fib_lookup);
static int fib4_rule_action(struct fib_rule *rule, struct flowi *flp,
int flags, struct fib_lookup_arg *arg)
@@ -169,8 +166,11 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
rule4->dst = nla_get_be32(tb[FRA_DST]);
#ifdef CONFIG_IP_ROUTE_CLASSID
- if (tb[FRA_FLOW])
+ if (tb[FRA_FLOW]) {
rule4->tclassid = nla_get_u32(tb[FRA_FLOW]);
+ if (rule4->tclassid)
+ net->ipv4.fib_num_tclassid_users++;
+ }
#endif
rule4->src_len = frh->src_len;
@@ -179,11 +179,24 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
rule4->dstmask = inet_make_mask(rule4->dst_len);
rule4->tos = frh->tos;
+ net->ipv4.fib_has_custom_rules = true;
err = 0;
errout:
return err;
}
+static void fib4_rule_delete(struct fib_rule *rule)
+{
+ struct net *net = rule->fr_net;
+#ifdef CONFIG_IP_ROUTE_CLASSID
+ struct fib4_rule *rule4 = (struct fib4_rule *) rule;
+
+ if (rule4->tclassid)
+ net->ipv4.fib_num_tclassid_users--;
+#endif
+ net->ipv4.fib_has_custom_rules = true;
+}
+
static int fib4_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
struct nlattr **tb)
{
@@ -256,6 +269,7 @@ static const struct fib_rules_ops __net_initdata fib4_rules_ops_template = {
.action = fib4_rule_action,
.match = fib4_rule_match,
.configure = fib4_rule_configure,
+ .delete = fib4_rule_delete,
.compare = fib4_rule_compare,
.fill = fib4_rule_fill,
.default_pref = fib_default_rule_pref,
@@ -295,6 +309,7 @@ int __net_init fib4_rules_init(struct net *net)
if (err < 0)
goto fail;
net->ipv4.rules_ops = ops;
+ net->ipv4.fib_has_custom_rules = false;
return 0;
fail:
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