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authorIdo Schimmel <idosch@mellanox.com>2017-08-03 13:28:15 +0200
committerDavid S. Miller <davem@davemloft.net>2017-08-03 15:35:59 -0700
commite3ea973159d53559c5ae9a9dbc824da9aba6cac0 (patch)
treeab5d466ecd8c66c880b490069e15ba213ede6949 /net/ipv6/fib6_rules.c
parent1b2a4440858857f2f93bb2ec5bb3a60f4fcc25be (diff)
ipv6: fib_rules: Check if rule is a default rule
As explained in commit 3c71006d15fd ("ipv4: fib_rules: Check if rule is a default rule"), drivers supporting IPv6 FIB offload need to be able to sanitize the rules they don't support and potentially flush their tables. Add an IPv6 helper to check if a FIB rule is a default rule. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/fib6_rules.c')
-rw-r--r--net/ipv6/fib6_rules.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index ec849d88a662..ef1fcee6bf16 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -29,6 +29,26 @@ struct fib6_rule {
u8 tclass;
};
+static bool fib6_rule_matchall(const struct fib_rule *rule)
+{
+ struct fib6_rule *r = container_of(rule, struct fib6_rule, common);
+
+ if (r->dst.plen || r->src.plen || r->tclass)
+ return false;
+ return fib_rule_matchall(rule);
+}
+
+bool fib6_rule_default(const struct fib_rule *rule)
+{
+ if (!fib6_rule_matchall(rule) || rule->action != FR_ACT_TO_TBL ||
+ rule->l3mdev)
+ return false;
+ if (rule->table != RT6_TABLE_LOCAL && rule->table != RT6_TABLE_MAIN)
+ return false;
+ return true;
+}
+EXPORT_SYMBOL_GPL(fib6_rule_default);
+
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
int flags, pol_lookup_t lookup)
{