forked from Minki/linux
6f39345768
Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes. Also, remove unnecessary function ipv6_rpl_srh_alloc_size() and replace kzalloc() with kcalloc(), which has a 2-factor argument form for multiplication. This code was detected with the help of Coccinelle and, audited and fixed manually. Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
41 lines
972 B
C
41 lines
972 B
C
/* 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)
|
|
|
|
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 */
|