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55 lines
1.2 KiB
55 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* SR-IPv6 implementation |
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* |
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* Author: |
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* David Lebrun <[email protected]> |
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* |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_LINUX_SEG6_H |
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#define _UAPI_LINUX_SEG6_H |
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#include <linux/types.h> |
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#include <linux/in6.h> /* For struct in6_addr. */ |
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/* |
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* SRH |
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*/ |
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struct ipv6_sr_hdr { |
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__u8 nexthdr; |
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__u8 hdrlen; |
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__u8 type; |
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__u8 segments_left; |
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__u8 first_segment; /* Represents the last_entry field of SRH */ |
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__u8 flags; |
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__u16 tag; |
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struct in6_addr segments[0]; |
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}; |
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#define SR6_FLAG1_PROTECTED (1 << 6) |
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#define SR6_FLAG1_OAM (1 << 5) |
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#define SR6_FLAG1_ALERT (1 << 4) |
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#define SR6_FLAG1_HMAC (1 << 3) |
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#define SR6_TLV_INGRESS 1 |
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#define SR6_TLV_EGRESS 2 |
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#define SR6_TLV_OPAQUE 3 |
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#define SR6_TLV_PADDING 4 |
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#define SR6_TLV_HMAC 5 |
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#define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC) |
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struct sr6_tlv { |
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__u8 type; |
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__u8 len; |
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__u8 data[0]; |
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}; |
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#endif
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