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vxlan: Factor out device configuration

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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>
This commit is contained in:
Thomas Graf
2015-07-21 10:44:02 +02:00
committed by David S. Miller
parent e7030878fc
commit 0dfbdf4102
2 changed files with 258 additions and 177 deletions
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59
include/net/vxlan.h
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@@ -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,