1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __NET_GENEVE_H 3*4882a593Smuzhiyun #define __NET_GENEVE_H 1 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <net/udp_tunnel.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #define GENEVE_UDP_PORT 6081 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* Geneve Header: 10*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 11*4882a593Smuzhiyun * |Ver| Opt Len |O|C| Rsvd. | Protocol Type | 12*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 13*4882a593Smuzhiyun * | Virtual Network Identifier (VNI) | Reserved | 14*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 15*4882a593Smuzhiyun * | Variable Length Options | 16*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 17*4882a593Smuzhiyun * 18*4882a593Smuzhiyun * Option Header: 19*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 20*4882a593Smuzhiyun * | Option Class | Type |R|R|R| Length | 21*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 22*4882a593Smuzhiyun * | Variable Option Data | 23*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun struct geneve_opt { 27*4882a593Smuzhiyun __be16 opt_class; 28*4882a593Smuzhiyun u8 type; 29*4882a593Smuzhiyun #ifdef __LITTLE_ENDIAN_BITFIELD 30*4882a593Smuzhiyun u8 length:5; 31*4882a593Smuzhiyun u8 r3:1; 32*4882a593Smuzhiyun u8 r2:1; 33*4882a593Smuzhiyun u8 r1:1; 34*4882a593Smuzhiyun #else 35*4882a593Smuzhiyun u8 r1:1; 36*4882a593Smuzhiyun u8 r2:1; 37*4882a593Smuzhiyun u8 r3:1; 38*4882a593Smuzhiyun u8 length:5; 39*4882a593Smuzhiyun #endif 40*4882a593Smuzhiyun u8 opt_data[]; 41*4882a593Smuzhiyun }; 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun #define GENEVE_CRIT_OPT_TYPE (1 << 7) 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun struct genevehdr { 46*4882a593Smuzhiyun #ifdef __LITTLE_ENDIAN_BITFIELD 47*4882a593Smuzhiyun u8 opt_len:6; 48*4882a593Smuzhiyun u8 ver:2; 49*4882a593Smuzhiyun u8 rsvd1:6; 50*4882a593Smuzhiyun u8 critical:1; 51*4882a593Smuzhiyun u8 oam:1; 52*4882a593Smuzhiyun #else 53*4882a593Smuzhiyun u8 ver:2; 54*4882a593Smuzhiyun u8 opt_len:6; 55*4882a593Smuzhiyun u8 oam:1; 56*4882a593Smuzhiyun u8 critical:1; 57*4882a593Smuzhiyun u8 rsvd1:6; 58*4882a593Smuzhiyun #endif 59*4882a593Smuzhiyun __be16 proto_type; 60*4882a593Smuzhiyun u8 vni[3]; 61*4882a593Smuzhiyun u8 rsvd2; 62*4882a593Smuzhiyun struct geneve_opt options[]; 63*4882a593Smuzhiyun }; 64*4882a593Smuzhiyun netif_is_geneve(const struct net_device * dev)65*4882a593Smuzhiyunstatic inline bool netif_is_geneve(const struct net_device *dev) 66*4882a593Smuzhiyun { 67*4882a593Smuzhiyun return dev->rtnl_link_ops && 68*4882a593Smuzhiyun !strcmp(dev->rtnl_link_ops->kind, "geneve"); 69*4882a593Smuzhiyun } 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun #ifdef CONFIG_INET 72*4882a593Smuzhiyun struct net_device *geneve_dev_create_fb(struct net *net, const char *name, 73*4882a593Smuzhiyun u8 name_assign_type, u16 dst_port); 74*4882a593Smuzhiyun #endif /*ifdef CONFIG_INET */ 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun #endif /*ifdef__NET_GENEVE_H */ 77