mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-11 16:16:41 +07:00
b8693877ae
Currently, it isn't possible to request checksums on the outer UDP header of tunnels - the TUNNEL_CSUM flag is ignored. This adds support for requesting that UDP checksums be computed on transmit and properly reported if they are present on receive. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
#ifndef __NET_GENEVE_H
|
|
#define __NET_GENEVE_H 1
|
|
|
|
#ifdef CONFIG_INET
|
|
#include <net/udp_tunnel.h>
|
|
#endif
|
|
|
|
|
|
/* Geneve Header:
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* |Ver| Opt Len |O|C| Rsvd. | Protocol Type |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Virtual Network Identifier (VNI) | Reserved |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Variable Length Options |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
*
|
|
* Option Header:
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Option Class | Type |R|R|R| Length |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Variable Option Data |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
*/
|
|
|
|
struct geneve_opt {
|
|
__be16 opt_class;
|
|
u8 type;
|
|
#ifdef __LITTLE_ENDIAN_BITFIELD
|
|
u8 length:5;
|
|
u8 r3:1;
|
|
u8 r2:1;
|
|
u8 r1:1;
|
|
#else
|
|
u8 r1:1;
|
|
u8 r2:1;
|
|
u8 r3:1;
|
|
u8 length:5;
|
|
#endif
|
|
u8 opt_data[];
|
|
};
|
|
|
|
#define GENEVE_CRIT_OPT_TYPE (1 << 7)
|
|
|
|
struct genevehdr {
|
|
#ifdef __LITTLE_ENDIAN_BITFIELD
|
|
u8 opt_len:6;
|
|
u8 ver:2;
|
|
u8 rsvd1:6;
|
|
u8 critical:1;
|
|
u8 oam:1;
|
|
#else
|
|
u8 ver:2;
|
|
u8 opt_len:6;
|
|
u8 oam:1;
|
|
u8 critical:1;
|
|
u8 rsvd1:6;
|
|
#endif
|
|
__be16 proto_type;
|
|
u8 vni[3];
|
|
u8 rsvd2;
|
|
struct geneve_opt options[];
|
|
};
|
|
|
|
#ifdef CONFIG_INET
|
|
struct geneve_sock;
|
|
|
|
typedef void (geneve_rcv_t)(struct geneve_sock *gs, struct sk_buff *skb);
|
|
|
|
struct geneve_sock {
|
|
struct list_head list;
|
|
geneve_rcv_t *rcv;
|
|
void *rcv_data;
|
|
struct socket *sock;
|
|
struct rcu_head rcu;
|
|
int refcnt;
|
|
struct udp_offload udp_offloads;
|
|
};
|
|
|
|
#define GENEVE_VER 0
|
|
#define GENEVE_BASE_HLEN (sizeof(struct udphdr) + sizeof(struct genevehdr))
|
|
|
|
struct geneve_sock *geneve_sock_add(struct net *net, __be16 port,
|
|
geneve_rcv_t *rcv, void *data,
|
|
bool no_share, bool ipv6);
|
|
|
|
void geneve_sock_release(struct geneve_sock *vs);
|
|
|
|
int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
|
|
struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos,
|
|
__u8 ttl, __be16 df, __be16 src_port, __be16 dst_port,
|
|
__be16 tun_flags, u8 vni[3], u8 opt_len, u8 *opt,
|
|
bool csum, bool xnet);
|
|
#endif /*ifdef CONFIG_INET */
|
|
|
|
#endif /*ifdef__NET_GENEVE_H */
|