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#ifndef NFTABLES_EXTHDR_H
#define NFTABLES_EXTHDR_H
#include <proto.h>
/**
* struct exthdr_desc - extension header description
*
* @name: extension header name
* @type: extension header protocol value
* @templates: header field templates
*/
struct exthdr_desc {
const char *name;
uint8_t type;
struct proto_hdr_template templates[10];
};
extern struct expr *exthdr_expr_alloc(const struct location *loc,
const struct exthdr_desc *desc,
uint8_t type);
extern void exthdr_init_raw(struct expr *expr, uint8_t type,
unsigned int offset, unsigned int len);
extern bool exthdr_find_template(struct expr *expr, const struct expr *mask,
unsigned int *shift);
enum hbh_hdr_fields {
HBHHDR_INVALID,
HBHHDR_NEXTHDR,
HBHHDR_HDRLENGTH,
};
enum rt_hdr_fields {
RTHDR_INVALID,
RTHDR_NEXTHDR,
RTHDR_HDRLENGTH,
RTHDR_TYPE,
RTHDR_SEG_LEFT,
};
enum rt0_hdr_fields {
RT0HDR_INVALID,
RT0HDR_RESERVED,
RT0HDR_ADDR_1,
};
enum rt2_hdr_fields {
RT2HDR_INVALID,
RT2HDR_RESERVED,
RT2HDR_ADDR,
};
enum frag_hdr_fields {
FRAGHDR_INVALID,
FRAGHDR_NEXTHDR,
FRAGHDR_RESERVED,
FRAGHDR_FRAG_OFF,
FRAGHDR_RESERVED2,
FRAGHDR_MFRAGS,
FRAGHDR_ID,
};
enum dst_hdr_fields {
DSTHDR_INVALID,
DSTHDR_NEXTHDR,
DSTHDR_HDRLENGTH,
};
enum mh_hdr_fields {
MHHDR_INVALID,
MHHDR_NEXTHDR,
MHHDR_HDRLENGTH,
MHHDR_TYPE,
MHHDR_RESERVED,
MHHDR_CHECKSUM,
};
extern const struct exthdr_desc exthdr_hbh;
extern const struct exthdr_desc exthdr_rt;
extern const struct exthdr_desc exthdr_rt0;
extern const struct exthdr_desc exthdr_rt2;
extern const struct exthdr_desc exthdr_frag;
extern const struct exthdr_desc exthdr_dst;
extern const struct exthdr_desc exthdr_mh;
#endif /* NFTABLES_EXTHDR_H */
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