add seg6.h kernel headers

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/include/linux/seg6.h b/include/linux/seg6.h
new file mode 100644 (file)
index 0000000..0715279
--- /dev/null
+++ b/include/linux/seg6.h
@@ -0,0 +1,54 @@
+/*
+ *  SR-IPv6 implementation
+ *
+ *  Author:
+ *  David Lebrun <david.lebrun@uclouvain.be>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_SEG6_H
+#define _LINUX_SEG6_H
+
+#include <linux/types.h>
+#include <linux/in6.h>         /* For struct in6_addr. */
+
+/*
+ * SRH
+ */
+struct ipv6_sr_hdr {
+       __u8    nexthdr;
+       __u8    hdrlen;
+       __u8    type;
+       __u8    segments_left;
+       __u8    first_segment;
+       __u8    flags;
+       __u16   reserved;
+
+       struct in6_addr segments[0];
+};
+
+#define SR6_FLAG1_PROTECTED    (1 << 6)
+#define SR6_FLAG1_OAM          (1 << 5)
+#define SR6_FLAG1_ALERT                (1 << 4)
+#define SR6_FLAG1_HMAC         (1 << 3)
+
+#define SR6_TLV_INGRESS                1
+#define SR6_TLV_EGRESS         2
+#define SR6_TLV_OPAQUE         3
+#define SR6_TLV_PADDING                4
+#define SR6_TLV_HMAC           5
+
+#define sr_has_hmac(srh) ((srh)->flags & SR6_FLAG1_HMAC)
+
+struct sr6_tlv {
+       __u8 type;
+       __u8 len;
+       __u8 data[0];
+};
+
+#endif

diff --git a/include/linux/seg6_genl.h b/include/linux/seg6_genl.h
new file mode 100644 (file)
index 0000000..99382f9
--- /dev/null
+++ b/include/linux/seg6_genl.h
@@ -0,0 +1,32 @@
+#ifndef _LINUX_SEG6_GENL_H
+#define _LINUX_SEG6_GENL_H
+
+#define SEG6_GENL_NAME         "SEG6"
+#define SEG6_GENL_VERSION      0x1
+
+enum {
+       SEG6_ATTR_UNSPEC,
+       SEG6_ATTR_DST,
+       SEG6_ATTR_DSTLEN,
+       SEG6_ATTR_HMACKEYID,
+       SEG6_ATTR_SECRET,
+       SEG6_ATTR_SECRETLEN,
+       SEG6_ATTR_ALGID,
+       SEG6_ATTR_HMACINFO,
+       __SEG6_ATTR_MAX,
+};
+
+#define SEG6_ATTR_MAX (__SEG6_ATTR_MAX - 1)
+
+enum {
+       SEG6_CMD_UNSPEC,
+       SEG6_CMD_SETHMAC,
+       SEG6_CMD_DUMPHMAC,
+       SEG6_CMD_SET_TUNSRC,
+       SEG6_CMD_GET_TUNSRC,
+       __SEG6_CMD_MAX,
+};
+
+#define SEG6_CMD_MAX (__SEG6_CMD_MAX - 1)
+
+#endif

diff --git a/include/linux/seg6_hmac.h b/include/linux/seg6_hmac.h
new file mode 100644 (file)
index 0000000..704f93e
--- /dev/null
+++ b/include/linux/seg6_hmac.h
@@ -0,0 +1,22 @@
+#ifndef _LINUX_SEG6_HMAC_H
+#define _LINUX_SEG6_HMAC_H
+
+#include <linux/types.h>
+#include <linux/seg6.h>
+
+#define SEG6_HMAC_SECRET_LEN   64
+#define SEG6_HMAC_FIELD_LEN    32
+
+struct sr6_tlv_hmac {
+       struct sr6_tlv tlvhdr;
+       __u16 reserved;
+       __be32 hmackeyid;
+       __u8 hmac[SEG6_HMAC_FIELD_LEN];
+};
+
+enum {
+       SEG6_HMAC_ALGO_SHA1 = 1,
+       SEG6_HMAC_ALGO_SHA256 = 2,
+};
+
+#endif

diff --git a/include/linux/seg6_iptunnel.h b/include/linux/seg6_iptunnel.h
new file mode 100644 (file)
index 0000000..c9bba0e
--- /dev/null
+++ b/include/linux/seg6_iptunnel.h
@@ -0,0 +1,39 @@
+/*
+ *  SR-IPv6 implementation
+ *
+ *  Author:
+ *  David Lebrun <david.lebrun@uclouvain.be>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_SEG6_IPTUNNEL_H
+#define _LINUX_SEG6_IPTUNNEL_H
+
+#include <linux/seg6.h>                /* For struct ipv6_sr_hdr. */
+
+enum {
+       SEG6_IPTUNNEL_UNSPEC,
+       SEG6_IPTUNNEL_SRH,
+       __SEG6_IPTUNNEL_MAX,
+};
+#define SEG6_IPTUNNEL_MAX (__SEG6_IPTUNNEL_MAX - 1)
+
+struct seg6_iptunnel_encap {
+       int mode;
+       struct ipv6_sr_hdr srh[0];
+};
+
+#define SEG6_IPTUN_ENCAP_SIZE(x) ((sizeof(*x)) + (((x)->srh->hdrlen + 1) << 3))
+
+enum {
+       SEG6_IPTUN_MODE_INLINE,
+       SEG6_IPTUN_MODE_ENCAP,
+};
+
+
+#endif