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
|
#ifndef UEVENT_H_INCLUDED
#define UEVENT_H_INCLUDED
/*
* buffer for environment variables, the kernel's size in
* lib/kobject_uevent.c should fit in
*/
#define HOTPLUG_BUFFER_SIZE 2048
#define HOTPLUG_NUM_ENVP 32
#define OBJECT_SIZE 512
struct udev;
struct config;
struct uevent {
struct list_head node;
struct list_head merge_node;
struct udev_device *udev;
char buffer[HOTPLUG_BUFFER_SIZE + OBJECT_SIZE];
char *devpath;
char *action;
char *kernel;
const char *wwid;
unsigned long seqnum;
char *envp[HOTPLUG_NUM_ENVP];
};
struct uevent *alloc_uevent(void);
int is_uevent_busy(void);
int uevent_listen(struct udev *udev);
int uevent_dispatch(int (*store_uev)(struct uevent *, void * trigger_data),
void * trigger_data);
bool uevent_is_mpath(const struct uevent *uev);
void uevent_get_wwid(struct uevent *uev, const struct config *conf);
int uevent_get_env_positive_int(const struct uevent *uev,
const char *attr);
static inline int uevent_get_major(const struct uevent *uev)
{
return uevent_get_env_positive_int(uev, "MAJOR");
}
static inline int uevent_get_minor(const struct uevent *uev)
{
return uevent_get_env_positive_int(uev, "MINOR");
}
static inline int uevent_get_disk_ro(const struct uevent *uev)
{
return uevent_get_env_positive_int(uev, "DISK_RO");
}
char *uevent_get_dm_str(const struct uevent *uev, char *attr);
static inline char *uevent_get_dm_name(const struct uevent *uev)
{
return uevent_get_dm_str(uev, "DM_NAME");
}
static inline char *uevent_get_dm_path(const struct uevent *uev)
{
return uevent_get_dm_str(uev, "DM_PATH");
}
static inline char *uevent_get_dm_action(const struct uevent *uev)
{
return uevent_get_dm_str(uev, "DM_ACTION");
}
#endif /* UEVENT_H_INCLUDED */
|
