1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef _UAPI_LINUX_SEG6_H 7 #define _UAPI_LINUX_SEG6_H 8 #include <linux/types.h> 9 #include <linux/in6.h> 10 struct ipv6_sr_hdr { 11 __u8 nexthdr; 12 __u8 hdrlen; 13 __u8 type; 14 __u8 segments_left; 15 __u8 first_segment; 16 __u8 flags; 17 __u16 tag; 18 struct in6_addr segments[0]; 19 }; 20 #define SR6_FLAG1_PROTECTED (1 << 6) 21 #define SR6_FLAG1_OAM (1 << 5) 22 #define SR6_FLAG1_ALERT (1 << 4) 23 #define SR6_FLAG1_HMAC (1 << 3) 24 #define SR6_TLV_INGRESS 1 25 #define SR6_TLV_EGRESS 2 26 #define SR6_TLV_OPAQUE 3 27 #define SR6_TLV_PADDING 4 28 #define SR6_TLV_HMAC 5 29 #define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC) 30 struct sr6_tlv { 31 __u8 type; 32 __u8 len; 33 __u8 data[0]; 34 }; 35 #endif 36