xref: /linux/include/uapi/linux/netfilter/xt_string.h (revision 2da68a77)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _XT_STRING_H
3 #define _XT_STRING_H
4 
5 #include <linux/types.h>
6 
7 #define XT_STRING_MAX_PATTERN_SIZE 128
8 #define XT_STRING_MAX_ALGO_NAME_SIZE 16
9 
10 enum {
11 	XT_STRING_FLAG_INVERT		= 0x01,
12 	XT_STRING_FLAG_IGNORECASE	= 0x02
13 };
14 
15 struct xt_string_info {
16 	__u16 from_offset;
17 	__u16 to_offset;
18 	char	  algo[XT_STRING_MAX_ALGO_NAME_SIZE];
19 	char 	  pattern[XT_STRING_MAX_PATTERN_SIZE];
20 	__u8  patlen;
21 	union {
22 		struct {
23 			__u8  invert;
24 		} v0;
25 
26 		struct {
27 			__u8  flags;
28 		} v1;
29 	} u;
30 
31 	/* Used internally by the kernel */
32 	struct ts_config __attribute__((aligned(8))) *config;
33 };
34 
35 #endif /*_XT_STRING_H*/
36