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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* iSNS object model
*
* Copyright (C) 2007 Olaf Kirch <olaf.kirch@oracle.com>
*/
#ifndef ISNS_OBJECTS_H
#define ISNS_OBJECTS_H
#include "isns.h"
#include "attrs.h"
enum isns_object_id {
ISNS_OBJECT_TYPE_ENTITY = 1,
ISNS_OBJECT_TYPE_NODE,
ISNS_OBJECT_TYPE_PORTAL,
ISNS_OBJECT_TYPE_PG,
ISNS_OBJECT_TYPE_DD,
ISNS_OBJECT_TYPE_DDSET,
ISNS_OBJECT_TYPE_POLICY,
ISNS_OBJECT_TYPE_FC_PORT,
ISNS_OBJECT_TYPE_FC_NODE,
__ISNS_OBJECT_TYPE_MAX
};
struct isns_object_template {
const char * iot_name;
unsigned int iot_handle; /* internal handle */
unsigned int iot_num_attrs;
unsigned int iot_num_keys;
uint32_t * iot_attrs;
uint32_t * iot_keys;
uint32_t iot_index;
uint32_t iot_next_index;
isns_object_template_t *iot_container;
unsigned int iot_relation_type;
isns_relation_t * (*iot_build_relation)(isns_db_t *,
isns_object_t *,
const isns_object_list_t *);
unsigned int iot_vendor_specific : 1;
};
struct isns_object {
/* There are two kinds of users of an object
* - Temporary references that result from the
* object being examined; being on a list,
* etc. The main purpose of these references
* is to make sure the object doesn't go away
* while being used.
*
* These are accounted for by ie_users.
*
* - Permanent references that result from the
* object being references by other objects
* (usually relations) such as a Portal Group,
* or a Discovery Domain.
*
* These are accounted for by ie_references.
*
* The main purpose of these references is to
* model some of the weirder life cycle states
* described in RFC 4711.
*
* Every reference via ie_references implies a
* reference via ie_users.
*/
unsigned int ie_users;
unsigned int ie_references;
uint32_t ie_index;
unsigned int ie_state;
unsigned int ie_flags;
time_t ie_mtime;
uint32_t ie_scn_mask; /* Events this node listens for */
uint32_t ie_scn_bits; /* Current event bits */
isns_attr_list_t ie_attrs;
isns_object_t * ie_container;
uint32_t ie_container_idx;
isns_object_template_t *ie_template;
isns_relation_t * ie_relation;
isns_object_list_t ie_children;
/* Bit vector describing DD membership */
isns_bitvector_t * ie_membership;
/* Support for virtual objects */
int (*ie_rebuild)(isns_object_t *, isns_db_t *);
};
typedef struct isns_object_ref {
isns_object_t * obj;
} isns_object_ref_t;
enum {
ISNS_RELATION_NONE = 0,
ISNS_RELATION_PORTAL_GROUP,
};
struct isns_relation {
unsigned int ir_type;
unsigned int ir_users;
isns_object_t * ir_object;
isns_object_ref_t ir_subordinate[2];
};
typedef struct isns_relation_soup isns_relation_soup_t;
typedef struct isns_relation_list isns_relation_list_t;
struct isns_relation_list {
unsigned int irl_count;
isns_relation_t ** irl_data;
};
#define ISNS_RELATION_LIST_INIT { .irl_count = 0, .irl_data = NULL }
#define ISNS_OBJECT_DIRTY 0x0001
#define ISNS_OBJECT_PRIVATE 0x0002
#define ISNS_OBJECT_DEAD 0x0004
enum {
ISNS_OBJECT_STATE_LARVAL,
ISNS_OBJECT_STATE_MATURE,
ISNS_OBJECT_STATE_LIMBO,
ISNS_OBJECT_STATE_DEAD,
};
extern int isns_object_remove_member(isns_object_t *obj,
const isns_attr_t *attr,
const uint32_t *subordinate_tags);
extern void isns_object_reference_set(isns_object_ref_t *ref,
isns_object_t *obj);
extern void isns_object_reference_drop(isns_object_ref_t *ref);
extern const char *isns_object_state_string(unsigned int);
extern isns_object_template_t *isns_object_template_by_name(const char *);
extern int isns_object_is_valid_container(const isns_object_t *,
isns_object_template_t *);
extern void isns_object_set_scn_mask(isns_object_t *, uint32_t);
extern isns_object_t *isns_create_default_domain(void);
/*
* Helper macros for object type check
*/
#define __ISNS_OBJECT_TYPE_CHECK(obj, type) \
((obj)->ie_template == &isns_##type##_template)
#define ISNS_IS_ENTITY(obj) __ISNS_OBJECT_TYPE_CHECK(obj, entity)
#define ISNS_IS_ISCSI_NODE(obj) __ISNS_OBJECT_TYPE_CHECK(obj, iscsi_node)
#define ISNS_IS_FC_PORT(obj) __ISNS_OBJECT_TYPE_CHECK(obj, fc_port)
#define ISNS_IS_FC_NODE(obj) __ISNS_OBJECT_TYPE_CHECK(obj, fc_node)
#define ISNS_IS_PORTAL(obj) __ISNS_OBJECT_TYPE_CHECK(obj, portal)
#define ISNS_IS_PG(obj) __ISNS_OBJECT_TYPE_CHECK(obj, iscsi_pg)
#define ISNS_IS_POLICY(obj) __ISNS_OBJECT_TYPE_CHECK(obj, policy)
#define ISNS_IS_DD(obj) __ISNS_OBJECT_TYPE_CHECK(obj, dd)
#define ISNS_IS_DDSET(obj) __ISNS_OBJECT_TYPE_CHECK(obj, ddset)
#endif /* ISNS_OBJECTS_H */
|
