47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* RPL implementation
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*
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* Author:
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* (C) 2020 Alexander Aring <alex.aring@gmail.com>
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*/
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#ifndef _NET_RPL_H
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#define _NET_RPL_H
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#include <linux/rpl.h>
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#if IS_ENABLED(CONFIG_IPV6_RPL_LWTUNNEL)
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extern int rpl_init(void);
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extern void rpl_exit(void);
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#else
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static inline int rpl_init(void)
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{
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return 0;
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}
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static inline void rpl_exit(void) {}
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#endif
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/* Worst decompression memory usage ipv6 address (16) + pad 7 */
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#define IPV6_RPL_SRH_WORST_SWAP_SIZE (sizeof(struct in6_addr) + 7)
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static inline size_t ipv6_rpl_srh_alloc_size(unsigned char n)
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{
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return sizeof(struct ipv6_rpl_sr_hdr) +
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((n + 1) * sizeof(struct in6_addr));
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}
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size_t ipv6_rpl_srh_size(unsigned char n, unsigned char cmpri,
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unsigned char cmpre);
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void ipv6_rpl_srh_decompress(struct ipv6_rpl_sr_hdr *outhdr,
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const struct ipv6_rpl_sr_hdr *inhdr,
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const struct in6_addr *daddr, unsigned char n);
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void ipv6_rpl_srh_compress(struct ipv6_rpl_sr_hdr *outhdr,
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const struct ipv6_rpl_sr_hdr *inhdr,
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const struct in6_addr *daddr, unsigned char n);
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#endif /* _NET_RPL_H */
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