This patch changes IP tunnel to support (secondary) encapsulation, Foo-over-UDP. Changes include: 1) Adding tun_hlen as the tunnel header length, encap_hlen as the encapsulation header length, and hlen becomes the grand total of these. 2) Added common netlink define to support FOU encapsulation. 3) Routines to perform FOU encapsulation.
Showing the changes to include/uapi/linux (1 of 3 files). Show all
Unified · Split
| @@ -53,10 +53,22 @@ enum { · 52 unmodified lines | ||
| 53 | 53 | IFLA_IPTUN_6RD_RELAY_PREFIX, |
| 54 | 54 | IFLA_IPTUN_6RD_PREFIXLEN, |
| 55 | 55 | IFLA_IPTUN_6RD_RELAY_PREFIXLEN, |
| 56 | + IFLA_IPTUN_ENCAP_TYPE, | |
| 57 | + IFLA_IPTUN_ENCAP_FLAGS, | |
| 58 | + IFLA_IPTUN_ENCAP_SPORT, | |
| 59 | + IFLA_IPTUN_ENCAP_DPORT, | |
| 56 | 60 | __IFLA_IPTUN_MAX, |
| 57 | 61 | }; |
| 58 | 62 | #define IFLA_IPTUN_MAX (__IFLA_IPTUN_MAX - 1) |
| 59 | 63 | |
| 64 | +enum tunnel_encap_types { | |
| 65 | + TUNNEL_ENCAP_NONE, | |
| 66 | + TUNNEL_ENCAP_FOU, | |
| 67 | +}; | |
| 68 | + | |
| 69 | +#define TUNNEL_ENCAP_FLAG_CSUM (1<<0) | |
| 70 | +#define TUNNEL_ENCAP_FLAG_CSUM6 (1<<1) | |
| 71 | + | |
| 60 | 72 | /* SIT-mode i_flags */ |
| 61 | 73 | #define SIT_ISATAP 0x0001 |
| 62 | 74 | |