From: Alexander Aring <alex.aring@gmail.com>
To: netdev@vger.kernel.org
Cc: mcr@sandelman.ca, stefan@datenfreihafen.org,
Alexander Aring <alex.aring@gmail.com>
Subject: [PATCH iproute2-next 1/2] uapi: updates to lwtunnel and rpl iptunnel
Date: Sat, 2 May 2020 18:58:33 -0400 [thread overview]
Message-ID: <20200502225834.28938-1-alex.aring@gmail.com> (raw)
Update uapi headers.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
---
include/uapi/linux/rpl.h | 48 +++++++++++++++++++++++++++++++
include/uapi/linux/rpl_iptunnel.h | 21 ++++++++++++++
2 files changed, 69 insertions(+)
create mode 100644 include/uapi/linux/rpl.h
create mode 100644 include/uapi/linux/rpl_iptunnel.h
diff --git a/include/uapi/linux/rpl.h b/include/uapi/linux/rpl.h
new file mode 100644
index 00000000..c24b64cd
--- /dev/null
+++ b/include/uapi/linux/rpl.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * IPv6 RPL-SR implementation
+ *
+ * Author:
+ * (C) 2020 Alexander Aring <alex.aring@gmail.com>
+ */
+
+#ifndef _LINUX_RPL_H
+#define _LINUX_RPL_H
+
+#include <asm/byteorder.h>
+#include <linux/types.h>
+#include <linux/in6.h>
+
+/*
+ * RPL SR Header
+ */
+struct ipv6_rpl_sr_hdr {
+ __u8 nexthdr;
+ __u8 hdrlen;
+ __u8 type;
+ __u8 segments_left;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u32 cmpre:4,
+ cmpri:4,
+ reserved:4,
+ pad:4,
+ reserved1:16;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ __u32 reserved:20,
+ pad:4,
+ cmpri:4,
+ cmpre:4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+ union {
+ struct in6_addr addr[0];
+ __u8 data[0];
+ } segments;
+} __attribute__((packed));
+
+#define rpl_segaddr segments.addr
+#define rpl_segdata segments.data
+
+#endif
diff --git a/include/uapi/linux/rpl_iptunnel.h b/include/uapi/linux/rpl_iptunnel.h
new file mode 100644
index 00000000..c255b92c
--- /dev/null
+++ b/include/uapi/linux/rpl_iptunnel.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * IPv6 RPL-SR implementation
+ *
+ * Author:
+ * (C) 2020 Alexander Aring <alex.aring@gmail.com>
+ */
+
+#ifndef _LINUX_RPL_IPTUNNEL_H
+#define _LINUX_RPL_IPTUNNEL_H
+
+enum {
+ RPL_IPTUNNEL_UNSPEC,
+ RPL_IPTUNNEL_SRH,
+ __RPL_IPTUNNEL_MAX,
+};
+#define RPL_IPTUNNEL_MAX (__RPL_IPTUNNEL_MAX - 1)
+
+#define RPL_IPTUNNEL_SRH_SIZE(srh) (((srh)->hdrlen + 1) << 3)
+
+#endif
--
2.20.1
next reply other threads:[~2020-05-02 22:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-02 22:58 Alexander Aring [this message]
2020-05-02 22:58 ` [PATCH iproute2-next 2/2] lwtunnel: add support for rpl segment routing Alexander Aring
2020-05-05 16:48 ` David Ahern
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