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authorAndrea Mayer <andrea.mayer@uniroma2.it>2020-06-20 00:54:43 +0200
committerDavid S. Miller <davem@davemloft.net>2020-06-20 17:22:22 -0700
commit49042c220b3a31e25902b36df71b23dc10efa0b8 (patch)
treeb8c373b905cf92b3b1a3efe98a82433ac6fcb195 /include/net/l3mdev.h
parentc5eb179edd8a169949b1fb153ecfd04649a71c8d (diff)
l3mdev: add infrastructure for table to VRF mapping
Add infrastructure to l3mdev (the core code for Layer 3 master devices) in order to find out the corresponding VRF device for a given table id. Therefore, the l3mdev implementations: - can register a callback that returns the device index of the l3mdev associated with a given table id; - can offer the lookup function (table to VRF device). Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/l3mdev.h')
-rw-r--r--include/net/l3mdev.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h
index e942372b077b..031c661aa14d 100644
--- a/include/net/l3mdev.h
+++ b/include/net/l3mdev.h
@@ -10,6 +10,16 @@
#include <net/dst.h>
#include <net/fib_rules.h>
+enum l3mdev_type {
+ L3MDEV_TYPE_UNSPEC,
+ L3MDEV_TYPE_VRF,
+ __L3MDEV_TYPE_MAX
+};
+
+#define L3MDEV_TYPE_MAX (__L3MDEV_TYPE_MAX - 1)
+
+typedef int (*lookup_by_table_id_t)(struct net *net, u32 table_d);
+
/**
* struct l3mdev_ops - l3mdev operations
*
@@ -37,6 +47,15 @@ struct l3mdev_ops {
#ifdef CONFIG_NET_L3_MASTER_DEV
+int l3mdev_table_lookup_register(enum l3mdev_type l3type,
+ lookup_by_table_id_t fn);
+
+void l3mdev_table_lookup_unregister(enum l3mdev_type l3type,
+ lookup_by_table_id_t fn);
+
+int l3mdev_ifindex_lookup_by_table_id(enum l3mdev_type l3type, struct net *net,
+ u32 table_id);
+
int l3mdev_fib_rule_match(struct net *net, struct flowi *fl,
struct fib_lookup_arg *arg);
@@ -281,6 +300,26 @@ struct sk_buff *l3mdev_ip6_out(struct sock *sk, struct sk_buff *skb)
}
static inline
+int l3mdev_table_lookup_register(enum l3mdev_type l3type,
+ lookup_by_table_id_t fn)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline
+void l3mdev_table_lookup_unregister(enum l3mdev_type l3type,
+ lookup_by_table_id_t fn)
+{
+}
+
+static inline
+int l3mdev_ifindex_lookup_by_table_id(enum l3mdev_type l3type, struct net *net,
+ u32 table_id)
+{
+ return -ENODEV;
+}
+
+static inline
int l3mdev_fib_rule_match(struct net *net, struct flowi *fl,
struct fib_lookup_arg *arg)
{