6f52b16c5b
Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI_MPLS_H
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#define _UAPI_MPLS_H
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#include <linux/types.h>
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#include <asm/byteorder.h>
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/* Reference: RFC 5462, RFC 3032
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*
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* 0 1 2 3
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* 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
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Label | TC |S| TTL |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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* Label: Label Value, 20 bits
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* TC: Traffic Class field, 3 bits
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* S: Bottom of Stack, 1 bit
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* TTL: Time to Live, 8 bits
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*/
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struct mpls_label {
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__be32 entry;
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};
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#define MPLS_LS_LABEL_MASK 0xFFFFF000
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#define MPLS_LS_LABEL_SHIFT 12
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#define MPLS_LS_TC_MASK 0x00000E00
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#define MPLS_LS_TC_SHIFT 9
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#define MPLS_LS_S_MASK 0x00000100
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#define MPLS_LS_S_SHIFT 8
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#define MPLS_LS_TTL_MASK 0x000000FF
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#define MPLS_LS_TTL_SHIFT 0
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/* Reserved labels */
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#define MPLS_LABEL_IPV4NULL 0 /* RFC3032 */
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#define MPLS_LABEL_RTALERT 1 /* RFC3032 */
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#define MPLS_LABEL_IPV6NULL 2 /* RFC3032 */
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#define MPLS_LABEL_IMPLNULL 3 /* RFC3032 */
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#define MPLS_LABEL_ENTROPY 7 /* RFC6790 */
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#define MPLS_LABEL_GAL 13 /* RFC5586 */
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#define MPLS_LABEL_OAMALERT 14 /* RFC3429 */
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#define MPLS_LABEL_EXTENSION 15 /* RFC7274 */
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#define MPLS_LABEL_FIRST_UNRESERVED 16 /* RFC3032 */
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/* These are embedded into IFLA_STATS_AF_SPEC:
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* [IFLA_STATS_AF_SPEC]
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* -> [AF_MPLS]
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* -> [MPLS_STATS_xxx]
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*
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* Attributes:
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* [MPLS_STATS_LINK] = {
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* struct mpls_link_stats
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* }
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*/
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enum {
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MPLS_STATS_UNSPEC, /* also used as 64bit pad attribute */
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MPLS_STATS_LINK,
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__MPLS_STATS_MAX,
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};
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#define MPLS_STATS_MAX (__MPLS_STATS_MAX - 1)
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struct mpls_link_stats {
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__u64 rx_packets; /* total packets received */
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__u64 tx_packets; /* total packets transmitted */
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__u64 rx_bytes; /* total bytes received */
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__u64 tx_bytes; /* total bytes transmitted */
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__u64 rx_errors; /* bad packets received */
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__u64 tx_errors; /* packet transmit problems */
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__u64 rx_dropped; /* packet dropped on receive */
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__u64 tx_dropped; /* packet dropped on transmit */
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__u64 rx_noroute; /* no route for packet dest */
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};
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#endif /* _UAPI_MPLS_H */
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