1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * RPL implementation 4 * 5 * Author: 6 * (C) 2020 Alexander Aring <alex.aring@gmail.com> 7 */ 8 9 #ifndef _NET_RPL_H 10 #define _NET_RPL_H 11 12 #include <linux/rpl.h> 13 14 #if IS_ENABLED(CONFIG_IPV6_RPL_LWTUNNEL) 15 extern int rpl_init(void); 16 extern void rpl_exit(void); 17 #else rpl_init(void)18static inline int rpl_init(void) 19 { 20 return 0; 21 } 22 rpl_exit(void)23static inline void rpl_exit(void) {} 24 #endif 25 26 /* Worst decompression memory usage ipv6 address (16) + pad 7 */ 27 #define IPV6_RPL_SRH_WORST_SWAP_SIZE (sizeof(struct in6_addr) + 7) 28 29 size_t ipv6_rpl_srh_size(unsigned char n, unsigned char cmpri, 30 unsigned char cmpre); 31 32 void ipv6_rpl_srh_decompress(struct ipv6_rpl_sr_hdr *outhdr, 33 const struct ipv6_rpl_sr_hdr *inhdr, 34 const struct in6_addr *daddr, unsigned char n); 35 36 void ipv6_rpl_srh_compress(struct ipv6_rpl_sr_hdr *outhdr, 37 const struct ipv6_rpl_sr_hdr *inhdr, 38 const struct in6_addr *daddr, unsigned char n); 39 40 #endif /* _NET_RPL_H */ 41