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/* 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>
#if IS_ENABLED(CONFIG_IPV6_RPL_LWTUNNEL)
extern int rpl_init(void);
extern void rpl_exit(void);
#else
static inline int rpl_init(void)
{
return 0;
}
static inline void rpl_exit(void) {}
#endif
/* 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 */
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