cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mpls.h (2317B)

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