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#ifndef NFTABLES_TCPOPT_H
#define NFTABLES_TCPOPT_H
#include <proto.h>
#include <exthdr.h>
extern struct expr *tcpopt_expr_alloc(const struct location *loc,
uint8_t type, uint8_t field);
extern void tcpopt_init_raw(struct expr *expr, uint8_t type,
unsigned int offset, unsigned int len,
uint32_t flags);
extern bool tcpopt_find_template(struct expr *expr, const struct expr *mask,
unsigned int *shift);
enum tcpopt_hdr_types {
TCPOPTHDR_INVALID,
TCPOPTHDR_EOL,
TCPOPTHDR_NOOP,
TCPOPTHDR_MAXSEG,
TCPOPTHDR_WINDOW,
TCPOPTHDR_SACK_PERMITTED,
TCPOPTHDR_SACK0,
TCPOPTHDR_SACK1,
TCPOPTHDR_SACK2,
TCPOPTHDR_SACK3,
TCPOPTHDR_TIMESTAMP,
TCPOPTHDR_ECHO,
TCPOPTHDR_ECHO_REPLY,
};
enum tcpopt_hdr_fields {
TCPOPTHDR_FIELD_INVALID,
TCPOPTHDR_FIELD_KIND,
TCPOPTHDR_FIELD_LENGTH,
TCPOPTHDR_FIELD_SIZE,
TCPOPTHDR_FIELD_COUNT,
TCPOPTHDR_FIELD_LEFT,
TCPOPTHDR_FIELD_RIGHT,
TCPOPTHDR_FIELD_TSVAL,
TCPOPTHDR_FIELD_TSECR,
};
extern const struct exthdr_desc tcpopt_eol;
extern const struct exthdr_desc tcpopt_nop;
extern const struct exthdr_desc tcpopt_maxseg;
extern const struct exthdr_desc tcpopt_window;
extern const struct exthdr_desc tcpopt_sack_permitted;
extern const struct exthdr_desc tcpopt_sack;
extern const struct exthdr_desc tcpopt_timestamp;
#endif /* NFTABLES_TCPOPT_H */
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