linux-stable/include/net/netfilter/nf_tables_core.h
Pankaj Bharadiya c593642c8b treewide: Use sizeof_field() macro
Replace all the occurrences of FIELD_SIZEOF() with sizeof_field() except
at places where these are defined. Later patches will remove the unused
definition of FIELD_SIZEOF().

This patch is generated using following script:

EXCLUDE_FILES="include/linux/stddef.h|include/linux/kernel.h"

git grep -l -e "\bFIELD_SIZEOF\b" | while read file;
do

	if [[ "$file" =~ $EXCLUDE_FILES ]]; then
		continue
	fi
	sed -i  -e 's/\bFIELD_SIZEOF\b/sizeof_field/g' $file;
done

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Link: https://lore.kernel.org/r/20190924105839.110713-3-pankaj.laxminarayan.bharadiya@intel.com
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: David Miller <davem@davemloft.net> # for net
2019-12-09 10:36:44 -08:00

101 lines
3.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_NF_TABLES_CORE_H
#define _NET_NF_TABLES_CORE_H
#include <net/netfilter/nf_tables.h>
extern struct nft_expr_type nft_imm_type;
extern struct nft_expr_type nft_cmp_type;
extern struct nft_expr_type nft_lookup_type;
extern struct nft_expr_type nft_bitwise_type;
extern struct nft_expr_type nft_byteorder_type;
extern struct nft_expr_type nft_payload_type;
extern struct nft_expr_type nft_dynset_type;
extern struct nft_expr_type nft_range_type;
extern struct nft_expr_type nft_meta_type;
extern struct nft_expr_type nft_rt_type;
extern struct nft_expr_type nft_exthdr_type;
#ifdef CONFIG_NETWORK_SECMARK
extern struct nft_object_type nft_secmark_obj_type;
#endif
int nf_tables_core_module_init(void);
void nf_tables_core_module_exit(void);
struct nft_cmp_fast_expr {
u32 data;
enum nft_registers sreg:8;
u8 len;
};
struct nft_immediate_expr {
struct nft_data data;
enum nft_registers dreg:8;
u8 dlen;
};
/* Calculate the mask for the nft_cmp_fast expression. On big endian the
* mask needs to include the *upper* bytes when interpreting that data as
* something smaller than the full u32, therefore a cpu_to_le32 is done.
*/
static inline u32 nft_cmp_fast_mask(unsigned int len)
{
return cpu_to_le32(~0U >> (sizeof_field(struct nft_cmp_fast_expr,
data) * BITS_PER_BYTE - len));
}
extern const struct nft_expr_ops nft_cmp_fast_ops;
struct nft_payload {
enum nft_payload_bases base:8;
u8 offset;
u8 len;
enum nft_registers dreg:8;
};
struct nft_payload_set {
enum nft_payload_bases base:8;
u8 offset;
u8 len;
enum nft_registers sreg:8;
u8 csum_type;
u8 csum_offset;
u8 csum_flags;
};
extern const struct nft_expr_ops nft_payload_fast_ops;
extern struct static_key_false nft_counters_enabled;
extern struct static_key_false nft_trace_enabled;
extern struct nft_set_type nft_set_rhash_type;
extern struct nft_set_type nft_set_hash_type;
extern struct nft_set_type nft_set_hash_fast_type;
extern struct nft_set_type nft_set_rbtree_type;
extern struct nft_set_type nft_set_bitmap_type;
struct nft_expr;
struct nft_regs;
struct nft_pktinfo;
void nft_meta_get_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_cmp_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_lookup_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_payload_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_immediate_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_bitwise_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_range_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_byteorder_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_dynset_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
void nft_rt_get_eval(const struct nft_expr *expr,
struct nft_regs *regs, const struct nft_pktinfo *pkt);
#endif /* _NET_NF_TABLES_CORE_H */