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
|
/*
* udevd.h
*
* Copyright (C) 2004 Ling, Xiaofeng <xiaofeng.ling@intel.com>
* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "list.h"
#define UDEV_MAGIC "udevd_" UDEV_VERSION
#define UDEVD_SOCK_PATH "/org/kernel/udev/udevd"
#define UDEVSEND_WAIT_MAX_SECONDS 3
#define UDEVSEND_WAIT_LOOP_PER_SECOND 10
#define UDEVD_PRIORITY -4
#define UDEV_PRIORITY -2
#define EVENT_QUEUE_DIR ".udev/queue"
#define EVENT_FAILED_DIR ".udev/failed"
#define EVENT_SEQNUM ".udev/uevent_seqnum"
/* maximum limit of forked childs */
#define UDEVD_MAX_CHILDS 64
/* start to throttle forking if maximum number of running childs in our session is reached */
#define UDEVD_MAX_CHILDS_RUNNING 16
/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
#define UEVENT_BUFFER_SIZE 2048
#define UEVENT_NUM_ENVP 64
enum udevd_msg_type {
UDEVD_UNKNOWN,
UDEVD_UEVENT_UDEVSEND,
UDEVD_UEVENT_NETLINK,
UDEVD_STOP_EXEC_QUEUE,
UDEVD_START_EXEC_QUEUE,
UDEVD_SET_LOG_LEVEL,
UDEVD_SET_MAX_CHILDS,
UDEVD_RELOAD_RULES,
};
struct udevd_msg {
char magic[32];
enum udevd_msg_type type;
char envbuf[UEVENT_BUFFER_SIZE+512];
};
struct uevent_msg {
enum udevd_msg_type type;
struct list_head node;
pid_t pid;
int exitstatus;
time_t queue_time;
char *action;
char *devpath;
char *subsystem;
dev_t devt;
unsigned long long seqnum;
char *physdevpath;
unsigned int timeout;
char *envp[UEVENT_NUM_ENVP+1];
char envbuf[];
};
|
