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
|
/*
* Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation
*
* 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.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/mount.h>
#include <unistd.h>
#include <unistd.h>
#include "procd.h"
#include "hotplug.h"
static struct uloop_process udevtrigger;
static void coldplug_complete(struct uloop_timeout *t)
{
DEBUG(2, "Coldplug complete\n");
hotplug_last_event(NULL);
procd_state_next();
}
static void udevtrigger_complete(struct uloop_process *proc, int ret)
{
DEBUG(2, "Finished udevtrigger\n");
}
void procd_coldplug(void)
{
char *argv[] = { "udevtrigger", NULL };
umount2("/dev/pts", MNT_DETACH);
umount2("/dev/", MNT_DETACH);
mount("tmpfs", "/dev", "tmpfs", 0, "mode=0755,size=512K");
mkdir("/dev/shm", 0755);
mkdir("/dev/pts", 0755);
mount("devpts", "/dev/pts", "devpts", 0, 0);
udevtrigger.cb = udevtrigger_complete;
udevtrigger.pid = fork();
if (!udevtrigger.pid) {
execvp(argv[0], argv);
ERROR("Failed to start coldplug\n");
exit(-1);
}
if (udevtrigger.pid <= 0) {
ERROR("Failed to start new coldplug instance\n");
return;
}
hotplug_last_event(coldplug_complete);
uloop_process_add(&udevtrigger);
DEBUG(2, "Launched coldplug instance, pid=%d\n", (int) udevtrigger.pid);
}
|