mirror of
https://github.com/openvswitch/ovs
synced 2025-10-29 15:28:56 +00:00
aad7cb91ef
upstream tunnel egress info is retrieved using ndo_fill_metadata_dst.
Since we do not have it on older kernel we need to keep vport operation
to do same on these kernels.
Following patch try to merge these to operations into one to avoid code
duplication.
This commit backports fc4099f1 ("openvswitch:
Fix egress tunnel info.")
Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
#ifndef __NET_STT_H
|
|
#define __NET_STT_H 1
|
|
|
|
#include <linux/kconfig.h>
|
|
#include <linux/errno.h>
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0) && IS_ENABLED(CONFIG_NETFILTER)
|
|
#include <net/ip_tunnels.h>
|
|
#define OVS_STT
|
|
|
|
struct stthdr {
|
|
__u8 version;
|
|
__u8 flags;
|
|
__u8 l4_offset;
|
|
__u8 reserved;
|
|
__be16 mss;
|
|
__be16 vlan_tci;
|
|
__be64 key;
|
|
};
|
|
|
|
/* Padding after the end of the tunnel headers to provide alignment
|
|
* for inner packet IP header after 14 byte Ethernet header.
|
|
*/
|
|
#define STT_ETH_PAD 2
|
|
|
|
#define STT_BASE_HLEN (sizeof(struct stthdr) + STT_ETH_PAD)
|
|
#define STT_HEADER_LEN (sizeof(struct tcphdr) + STT_BASE_HLEN)
|
|
|
|
static inline struct stthdr *stt_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct stthdr *)(skb_transport_header(skb) +
|
|
sizeof(struct tcphdr));
|
|
}
|
|
|
|
struct net_device *ovs_stt_dev_create_fb(struct net *net, const char *name,
|
|
u8 name_assign_type, u16 dst_port);
|
|
|
|
netdev_tx_t ovs_stt_xmit(struct sk_buff *skb);
|
|
|
|
int ovs_stt_init_module(void);
|
|
|
|
void ovs_stt_cleanup_module(void);
|
|
#else
|
|
static inline int ovs_stt_init_module(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void ovs_stt_cleanup_module(void)
|
|
{}
|
|
|
|
static inline struct net_device *ovs_stt_dev_create_fb(struct net *net, const char *name,
|
|
u8 name_assign_type, u16 dst_port)
|
|
{
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
}
|
|
static inline netdev_tx_t ovs_stt_xmit(struct sk_buff *skb)
|
|
{
|
|
BUG();
|
|
return NETDEV_TX_OK;
|
|
}
|
|
#endif
|
|
|
|
#define stt_dev_create_fb ovs_stt_dev_create_fb
|
|
#define stt_init_module ovs_stt_init_module
|
|
#define stt_cleanup_module ovs_stt_cleanup_module
|
|
|
|
#define stt_fill_metadata_dst ovs_stt_fill_metadata_dst
|
|
int ovs_stt_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb);
|
|
|
|
#endif /*ifdef__NET_STT_H */
|