Go to the documentation of this file. 1 #ifndef DRBD_TAG_MAGIC_H
2 #define DRBD_TAG_MAGIC_H
5 #define TT_REMOVED 0xE000
9 #define NL_PACKET(name, number, fields) P_ ## name = number,
10 #define NL_RESPONSE(name, number) P_ ## name = number,
11 #define NL_INTEGER(pn, pr, member)
12 #define NL_INT64(pn, pr, member)
13 #define NL_BIT(pn, pr, member)
14 #define NL_STRING(pn, pr, member, len)
20 #define NL_PACKET(name, number, fields) \
21 struct name ## _tag_len_struct { fields };
22 #define NL_INTEGER(pn, pr, member) \
23 int member; int tag_and_len ## member;
24 #define NL_INT64(pn, pr, member) \
25 __u64 member; int tag_and_len ## member;
26 #define NL_BIT(pn, pr, member) \
27 unsigned char member:1; int tag_and_len ## member;
28 #define NL_STRING(pn, pr, member, len) \
29 unsigned char member[len]; int member ## _len; \
30 int tag_and_len ## member;
34 static const int tag_list_sizes[] = {
35 #define NL_PACKET(name, number, fields) 2 fields ,
36 #define NL_INTEGER(pn, pr, member) + 4 + 4
37 #define NL_INT64(pn, pr, member) + 4 + 8
38 #define NL_BIT(pn, pr, member) + 4 + 1
39 #define NL_STRING(pn, pr, member, len) + 4 + (len)
44 #define TT_MASK 0xC000
45 #define TT_INTEGER 0x0000
46 #define TT_INT64 0x4000
48 #define TT_STRING 0xC000
50 #define T_MANDATORY 0x2000
51 #define T_MAY_IGNORE 0x0000
52 #define TN_MASK 0x1fff
55 #define tag_type(T) ((T) & TT_MASK)
56 #define tag_number(T) ((T) & TN_MASK)
59 #define NL_PACKET(name, number, fields) fields
61 #define NL_INTEGER(pn, pr, member) T_ ## member = pn | TT_INTEGER | pr ,
62 #define NL_INT64(pn, pr, member) T_ ## member = pn | TT_INT64 | pr ,
63 #define NL_BIT(pn, pr, member) T_ ## member = pn | TT_BIT | pr ,
64 #define NL_STRING(pn, pr, member, len) T_ ## member = pn | TT_STRING | pr ,
75 #define NL_PACKET(name, number, fields) fields
76 static const struct tag tag_descriptions[] = {
77 #define NL_INTEGER(pn, pr, member) [ pn ] = { #member, TT_INTEGER | pr, sizeof(int) },
78 #define NL_INT64(pn, pr, member) [ pn ] = { #member, TT_INT64 | pr, sizeof(__u64) },
79 #define NL_BIT(pn, pr, member) [ pn ] = { #member, TT_BIT | pr, sizeof(int) },
80 #define NL_STRING(pn, pr, member, len) [ pn ] = { #member, TT_STRING | pr, (len) },