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-rw-r--r--include/net/rpl.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/include/net/rpl.h b/include/net/rpl.h
new file mode 100644
index 000000000000..d694d49a61db
--- /dev/null
+++ b/include/net/rpl.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * RPL implementation
+ *
+ * Author:
+ * (C) 2020 Alexander Aring <alex.aring@gmail.com>
+ */
+
+#ifndef _NET_RPL_H
+#define _NET_RPL_H
+
+#include <linux/rpl.h>
+
+/* Worst decompression memory usage ipv6 address (16) + pad 7 */
+#define IPV6_RPL_SRH_WORST_SWAP_SIZE (sizeof(struct in6_addr) + 7)
+
+static inline size_t ipv6_rpl_srh_alloc_size(unsigned char n)
+{
+ return sizeof(struct ipv6_rpl_sr_hdr) +
+ ((n + 1) * sizeof(struct in6_addr));
+}
+
+size_t ipv6_rpl_srh_size(unsigned char n, unsigned char cmpri,
+ unsigned char cmpre);
+
+void ipv6_rpl_srh_decompress(struct ipv6_rpl_sr_hdr *outhdr,
+ const struct ipv6_rpl_sr_hdr *inhdr,
+ const struct in6_addr *daddr, unsigned char n);
+
+void ipv6_rpl_srh_compress(struct ipv6_rpl_sr_hdr *outhdr,
+ const struct ipv6_rpl_sr_hdr *inhdr,
+ const struct in6_addr *daddr, unsigned char n);
+
+#endif /* _NET_RPL_H */