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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>
40 lines
972 B
C
40 lines
972 B
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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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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