1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_MPLS_H 3*4882a593Smuzhiyun #define _UAPI_MPLS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun #include <asm/byteorder.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun /* Reference: RFC 5462, RFC 3032 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * 0 1 2 3 11*4882a593Smuzhiyun * 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 12*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 13*4882a593Smuzhiyun * | Label | TC |S| TTL | 14*4882a593Smuzhiyun * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 15*4882a593Smuzhiyun * 16*4882a593Smuzhiyun * Label: Label Value, 20 bits 17*4882a593Smuzhiyun * TC: Traffic Class field, 3 bits 18*4882a593Smuzhiyun * S: Bottom of Stack, 1 bit 19*4882a593Smuzhiyun * TTL: Time to Live, 8 bits 20*4882a593Smuzhiyun */ 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun struct mpls_label { 23*4882a593Smuzhiyun __be32 entry; 24*4882a593Smuzhiyun }; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #define MPLS_LS_LABEL_MASK 0xFFFFF000 27*4882a593Smuzhiyun #define MPLS_LS_LABEL_SHIFT 12 28*4882a593Smuzhiyun #define MPLS_LS_TC_MASK 0x00000E00 29*4882a593Smuzhiyun #define MPLS_LS_TC_SHIFT 9 30*4882a593Smuzhiyun #define MPLS_LS_S_MASK 0x00000100 31*4882a593Smuzhiyun #define MPLS_LS_S_SHIFT 8 32*4882a593Smuzhiyun #define MPLS_LS_TTL_MASK 0x000000FF 33*4882a593Smuzhiyun #define MPLS_LS_TTL_SHIFT 0 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun /* Reserved labels */ 36*4882a593Smuzhiyun #define MPLS_LABEL_IPV4NULL 0 /* RFC3032 */ 37*4882a593Smuzhiyun #define MPLS_LABEL_RTALERT 1 /* RFC3032 */ 38*4882a593Smuzhiyun #define MPLS_LABEL_IPV6NULL 2 /* RFC3032 */ 39*4882a593Smuzhiyun #define MPLS_LABEL_IMPLNULL 3 /* RFC3032 */ 40*4882a593Smuzhiyun #define MPLS_LABEL_ENTROPY 7 /* RFC6790 */ 41*4882a593Smuzhiyun #define MPLS_LABEL_GAL 13 /* RFC5586 */ 42*4882a593Smuzhiyun #define MPLS_LABEL_OAMALERT 14 /* RFC3429 */ 43*4882a593Smuzhiyun #define MPLS_LABEL_EXTENSION 15 /* RFC7274 */ 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun #define MPLS_LABEL_FIRST_UNRESERVED 16 /* RFC3032 */ 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun /* These are embedded into IFLA_STATS_AF_SPEC: 48*4882a593Smuzhiyun * [IFLA_STATS_AF_SPEC] 49*4882a593Smuzhiyun * -> [AF_MPLS] 50*4882a593Smuzhiyun * -> [MPLS_STATS_xxx] 51*4882a593Smuzhiyun * 52*4882a593Smuzhiyun * Attributes: 53*4882a593Smuzhiyun * [MPLS_STATS_LINK] = { 54*4882a593Smuzhiyun * struct mpls_link_stats 55*4882a593Smuzhiyun * } 56*4882a593Smuzhiyun */ 57*4882a593Smuzhiyun enum { 58*4882a593Smuzhiyun MPLS_STATS_UNSPEC, /* also used as 64bit pad attribute */ 59*4882a593Smuzhiyun MPLS_STATS_LINK, 60*4882a593Smuzhiyun __MPLS_STATS_MAX, 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun #define MPLS_STATS_MAX (__MPLS_STATS_MAX - 1) 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun struct mpls_link_stats { 66*4882a593Smuzhiyun __u64 rx_packets; /* total packets received */ 67*4882a593Smuzhiyun __u64 tx_packets; /* total packets transmitted */ 68*4882a593Smuzhiyun __u64 rx_bytes; /* total bytes received */ 69*4882a593Smuzhiyun __u64 tx_bytes; /* total bytes transmitted */ 70*4882a593Smuzhiyun __u64 rx_errors; /* bad packets received */ 71*4882a593Smuzhiyun __u64 tx_errors; /* packet transmit problems */ 72*4882a593Smuzhiyun __u64 rx_dropped; /* packet dropped on receive */ 73*4882a593Smuzhiyun __u64 tx_dropped; /* packet dropped on transmit */ 74*4882a593Smuzhiyun __u64 rx_noroute; /* no route for packet dest */ 75*4882a593Smuzhiyun }; 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun #endif /* _UAPI_MPLS_H */ 78