1*6f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2f3baa393SSimon Wunderlich #ifndef _UAPI_MPLS_H 3f3baa393SSimon Wunderlich #define _UAPI_MPLS_H 4f3baa393SSimon Wunderlich 5f3baa393SSimon Wunderlich #include <linux/types.h> 6f3baa393SSimon Wunderlich #include <asm/byteorder.h> 7f3baa393SSimon Wunderlich 8f3baa393SSimon Wunderlich /* Reference: RFC 5462, RFC 3032 9f3baa393SSimon Wunderlich * 10f3baa393SSimon Wunderlich * 0 1 2 3 11f3baa393SSimon Wunderlich * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 12f3baa393SSimon Wunderlich * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 13f3baa393SSimon Wunderlich * | Label | TC |S| TTL | 14f3baa393SSimon Wunderlich * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 15f3baa393SSimon Wunderlich * 16f3baa393SSimon Wunderlich * Label: Label Value, 20 bits 17f3baa393SSimon Wunderlich * TC: Traffic Class field, 3 bits 18f3baa393SSimon Wunderlich * S: Bottom of Stack, 1 bit 19f3baa393SSimon Wunderlich * TTL: Time to Live, 8 bits 20f3baa393SSimon Wunderlich */ 21f3baa393SSimon Wunderlich 22f3baa393SSimon Wunderlich struct mpls_label { 23f3baa393SSimon Wunderlich __be32 entry; 24f3baa393SSimon Wunderlich }; 25f3baa393SSimon Wunderlich 26f3baa393SSimon Wunderlich #define MPLS_LS_LABEL_MASK 0xFFFFF000 27f3baa393SSimon Wunderlich #define MPLS_LS_LABEL_SHIFT 12 28f3baa393SSimon Wunderlich #define MPLS_LS_TC_MASK 0x00000E00 29f3baa393SSimon Wunderlich #define MPLS_LS_TC_SHIFT 9 30f3baa393SSimon Wunderlich #define MPLS_LS_S_MASK 0x00000100 31f3baa393SSimon Wunderlich #define MPLS_LS_S_SHIFT 8 32f3baa393SSimon Wunderlich #define MPLS_LS_TTL_MASK 0x000000FF 33f3baa393SSimon Wunderlich #define MPLS_LS_TTL_SHIFT 0 34f3baa393SSimon Wunderlich 35c967a087STom Herbert /* Reserved labels */ 3678f5b899STom Herbert #define MPLS_LABEL_IPV4NULL 0 /* RFC3032 */ 3778f5b899STom Herbert #define MPLS_LABEL_RTALERT 1 /* RFC3032 */ 3878f5b899STom Herbert #define MPLS_LABEL_IPV6NULL 2 /* RFC3032 */ 3978f5b899STom Herbert #define MPLS_LABEL_IMPLNULL 3 /* RFC3032 */ 4078f5b899STom Herbert #define MPLS_LABEL_ENTROPY 7 /* RFC6790 */ 41c967a087STom Herbert #define MPLS_LABEL_GAL 13 /* RFC5586 */ 4278f5b899STom Herbert #define MPLS_LABEL_OAMALERT 14 /* RFC3429 */ 43c967a087STom Herbert #define MPLS_LABEL_EXTENSION 15 /* RFC7274 */ 44c967a087STom Herbert 45a6affd24SRobert Shearman #define MPLS_LABEL_FIRST_UNRESERVED 16 /* RFC3032 */ 46a6affd24SRobert Shearman 4727d69105SRobert Shearman /* These are embedded into IFLA_STATS_AF_SPEC: 4827d69105SRobert Shearman * [IFLA_STATS_AF_SPEC] 4927d69105SRobert Shearman * -> [AF_MPLS] 5027d69105SRobert Shearman * -> [MPLS_STATS_xxx] 5127d69105SRobert Shearman * 5227d69105SRobert Shearman * Attributes: 5327d69105SRobert Shearman * [MPLS_STATS_LINK] = { 5427d69105SRobert Shearman * struct mpls_link_stats 5527d69105SRobert Shearman * } 5627d69105SRobert Shearman */ 5727d69105SRobert Shearman enum { 5827d69105SRobert Shearman MPLS_STATS_UNSPEC, /* also used as 64bit pad attribute */ 5927d69105SRobert Shearman MPLS_STATS_LINK, 6027d69105SRobert Shearman __MPLS_STATS_MAX, 6127d69105SRobert Shearman }; 6227d69105SRobert Shearman 6327d69105SRobert Shearman #define MPLS_STATS_MAX (__MPLS_STATS_MAX - 1) 6427d69105SRobert Shearman 6527d69105SRobert Shearman struct mpls_link_stats { 6627d69105SRobert Shearman __u64 rx_packets; /* total packets received */ 6727d69105SRobert Shearman __u64 tx_packets; /* total packets transmitted */ 6827d69105SRobert Shearman __u64 rx_bytes; /* total bytes received */ 6927d69105SRobert Shearman __u64 tx_bytes; /* total bytes transmitted */ 7027d69105SRobert Shearman __u64 rx_errors; /* bad packets received */ 7127d69105SRobert Shearman __u64 tx_errors; /* packet transmit problems */ 7227d69105SRobert Shearman __u64 rx_dropped; /* packet dropped on receive */ 7327d69105SRobert Shearman __u64 tx_dropped; /* packet dropped on transmit */ 7427d69105SRobert Shearman __u64 rx_noroute; /* no route for packet dest */ 7527d69105SRobert Shearman }; 7627d69105SRobert Shearman 77f3baa393SSimon Wunderlich #endif /* _UAPI_MPLS_H */ 78