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authorThomas Graf <tgraf@suug.ch>2015-07-21 10:44:02 +0200
committerDavid S. Miller <davem@davemloft.net>2015-07-21 10:39:06 -0700
commit0dfbdf4102b9303d3ddf2177c0220098ff99f6de (patch)
tree45089b30555c3e10111a14dc3ecaa9ca4422076d /include/net/vxlan.h
parente7030878fc8448492b6e5cecd574043f63271298 (diff)
vxlan: Factor out device configuration
This factors out the device configuration out of the RTNL newlink API which allows for in-kernel creation of VXLAN net_devices. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/vxlan.h')
-rw-r--r--include/net/vxlan.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 80a2da29e088..19535f85eb2c 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -95,6 +95,11 @@ struct vxlanhdr {
#define VXLAN_VNI_MASK (VXLAN_VID_MASK << 8)
#define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
+#define VNI_HASH_BITS 10
+#define VNI_HASH_SIZE (1<<VNI_HASH_BITS)
+#define FDB_HASH_BITS 8
+#define FDB_HASH_SIZE (1<<FDB_HASH_BITS)
+
struct vxlan_metadata {
__be32 vni;
u32 gbp;
@@ -121,6 +126,57 @@ struct vxlan_sock {
u32 flags;
};
+union vxlan_addr {
+ struct sockaddr_in sin;
+ struct sockaddr_in6 sin6;
+ struct sockaddr sa;
+};
+
+struct vxlan_rdst {
+ union vxlan_addr remote_ip;
+ __be16 remote_port;
+ u32 remote_vni;
+ u32 remote_ifindex;
+ struct list_head list;
+ struct rcu_head rcu;
+};
+
+struct vxlan_config {
+ union vxlan_addr remote_ip;
+ union vxlan_addr saddr;
+ u32 vni;
+ int remote_ifindex;
+ int mtu;
+ __be16 dst_port;
+ __u16 port_min;
+ __u16 port_max;
+ __u8 tos;
+ __u8 ttl;
+ u32 flags;
+ unsigned long age_interval;
+ unsigned int addrmax;
+ bool no_share;
+};
+
+/* Pseudo network device */
+struct vxlan_dev {
+ struct hlist_node hlist; /* vni hash table */
+ struct list_head next; /* vxlan's per namespace list */
+ struct vxlan_sock *vn_sock; /* listening socket */
+ struct net_device *dev;
+ struct net *net; /* netns for packet i/o */
+ struct vxlan_rdst default_dst; /* default destination */
+ u32 flags; /* VXLAN_F_* in vxlan.h */
+
+ struct timer_list age_timer;
+ spinlock_t hash_lock;
+ unsigned int addrcnt;
+
+ struct vxlan_config cfg;
+
+ struct hlist_head fdb_head[FDB_HASH_SIZE];
+};
+
#define VXLAN_F_LEARN 0x01
#define VXLAN_F_PROXY 0x02
#define VXLAN_F_RSC 0x04
@@ -151,6 +207,9 @@ struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
vxlan_rcv_t *rcv, void *data,
bool no_share, u32 flags);
+struct net_device *vxlan_dev_create(struct net *net, const char *name,
+ u8 name_assign_type, struct vxlan_config *conf);
+
void vxlan_sock_release(struct vxlan_sock *vs);
int vxlan_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,