cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / mpls.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/mpls.h b/i686-linux-gnu-4.7/usr/include/linux/mpls.h
new file mode 100644 (file)
index 0000000..9effbf9
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/mpls.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _MPLS_H
+#define _MPLS_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+/* Reference: RFC 5462, RFC 3032
+ *
+ *  0                   1                   2                   3
+ *  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
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                Label                  | TC  |S|       TTL     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *     Label:  Label Value, 20 bits
+ *     TC:     Traffic Class field, 3 bits
+ *     S:      Bottom of Stack, 1 bit
+ *     TTL:    Time to Live, 8 bits
+ */
+
+struct mpls_label {
+       __be32 entry;
+};
+
+#define MPLS_LS_LABEL_MASK      0xFFFFF000
+#define MPLS_LS_LABEL_SHIFT     12
+#define MPLS_LS_TC_MASK         0x00000E00
+#define MPLS_LS_TC_SHIFT        9
+#define MPLS_LS_S_MASK          0x00000100
+#define MPLS_LS_S_SHIFT         8
+#define MPLS_LS_TTL_MASK        0x000000FF
+#define MPLS_LS_TTL_SHIFT       0
+
+/* Reserved labels */
+#define MPLS_LABEL_IPV4NULL            0 /* RFC3032 */
+#define MPLS_LABEL_RTALERT             1 /* RFC3032 */
+#define MPLS_LABEL_IPV6NULL            2 /* RFC3032 */
+#define MPLS_LABEL_IMPLNULL            3 /* RFC3032 */
+#define MPLS_LABEL_ENTROPY             7 /* RFC6790 */
+#define MPLS_LABEL_GAL                 13 /* RFC5586 */
+#define MPLS_LABEL_OAMALERT            14 /* RFC3429 */
+#define MPLS_LABEL_EXTENSION           15 /* RFC7274 */
+
+#define MPLS_LABEL_FIRST_UNRESERVED    16 /* RFC3032 */
+
+/* These are embedded into IFLA_STATS_AF_SPEC:
+ * [IFLA_STATS_AF_SPEC]
+ * -> [AF_MPLS]
+ *    -> [MPLS_STATS_xxx]
+ *
+ * Attributes:
+ * [MPLS_STATS_LINK] = {
+ *     struct mpls_link_stats
+ * }
+ */
+enum {
+       MPLS_STATS_UNSPEC, /* also used as 64bit pad attribute */
+       MPLS_STATS_LINK,
+       __MPLS_STATS_MAX,
+};
+
+#define MPLS_STATS_MAX (__MPLS_STATS_MAX - 1)
+
+struct mpls_link_stats {
+       __u64   rx_packets;             /* total packets received       */
+       __u64   tx_packets;             /* total packets transmitted    */
+       __u64   rx_bytes;               /* total bytes received         */
+       __u64   tx_bytes;               /* total bytes transmitted      */
+       __u64   rx_errors;              /* bad packets received         */
+       __u64   tx_errors;              /* packet transmit problems     */
+       __u64   rx_dropped;             /* packet dropped on receive    */
+       __u64   tx_dropped;             /* packet dropped on transmit   */
+       __u64   rx_noroute;             /* no route for packet dest     */
+};
+
+#endif /* _MPLS_H */