summaryrefslogtreecommitdiffstats
path: root/include/exthdr.h
blob: 8ef0b395c9d0fb425942bd596d7f50a738de7567 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
#ifndef _EXTHDR_H
#define _EXTHDR_H

/**
 * struct exthdr_desc - extension header description
 *
 * @name:	extension header name
 * @type:	extension header protocol value
 * @templates:	header templates
 */
struct exthdr_desc {
	const char			*name;
	uint8_t				type;
	struct payload_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);


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 /* _EXTHDR_H */