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
|
/*
* Copyright (C) 2005-2011 Kay Sievers <kay@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, either version 2 of the License, or
* (at your option) any later version.
*
* 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 <time.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/un.h>
#include "udev.h"
#include "udev-util.h"
static void print_help(void) {
printf("Usage: udevadm control COMMAND\n"
" -e,--exit instruct the daemon to cleanup and exit\n"
" -l,--log-priority=LEVEL set the udev log level for the daemon\n"
" -s,--stop-exec-queue do not execute events, queue only\n"
" -S,--start-exec-queue execute events, flush queue\n"
" -R,--reload reload rules and databases\n"
" -p,--property=KEY=VALUE set a global property for all events\n"
" -m,--children-max=N maximum number of children\n"
" --timeout=SECONDS maximum time to block for a reply\n"
" -h,--help print this help text\n\n");
}
static int adm_control(struct udev *udev, int argc, char *argv[]) {
_cleanup_udev_ctrl_unref_ struct udev_ctrl *uctrl = NULL;
int timeout = 60;
int rc = 1, c;
static const struct option options[] = {
{ "exit", no_argument, NULL, 'e' },
{ "log-priority", required_argument, NULL, 'l' },
{ "stop-exec-queue", no_argument, NULL, 's' },
{ "start-exec-queue", no_argument, NULL, 'S' },
{ "reload", no_argument, NULL, 'R' },
{ "reload-rules", no_argument, NULL, 'R' }, /* alias for -R */
{ "property", required_argument, NULL, 'p' },
{ "env", required_argument, NULL, 'p' }, /* alias for -p */
{ "children-max", required_argument, NULL, 'm' },
{ "timeout", required_argument, NULL, 't' },
{ "help", no_argument, NULL, 'h' },
{}
};
if (getuid() != 0) {
fprintf(stderr, "root privileges required\n");
return 1;
}
uctrl = udev_ctrl_new(udev);
if (uctrl == NULL)
return 2;
while ((c = getopt_long(argc, argv, "el:sSRp:m:h", options, NULL)) >= 0)
switch (c) {
case 'e':
if (udev_ctrl_send_exit(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'l': {
int i;
i = util_log_priority(optarg);
if (i < 0) {
fprintf(stderr, "invalid number '%s'\n", optarg);
return rc;
}
if (udev_ctrl_send_set_log_level(uctrl, util_log_priority(optarg), timeout) < 0)
rc = 2;
else
rc = 0;
break;
}
case 's':
if (udev_ctrl_send_stop_exec_queue(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'S':
if (udev_ctrl_send_start_exec_queue(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'R':
if (udev_ctrl_send_reload(uctrl, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'p':
if (strchr(optarg, '=') == NULL) {
fprintf(stderr, "expect <KEY>=<value> instead of '%s'\n", optarg);
return rc;
}
if (udev_ctrl_send_set_env(uctrl, optarg, timeout) < 0)
rc = 2;
else
rc = 0;
break;
case 'm': {
char *endp;
int i;
i = strtoul(optarg, &endp, 0);
if (endp[0] != '\0' || i < 1) {
fprintf(stderr, "invalid number '%s'\n", optarg);
return rc;
}
if (udev_ctrl_send_set_children_max(uctrl, i, timeout) < 0)
rc = 2;
else
rc = 0;
break;
}
case 't': {
int seconds;
seconds = atoi(optarg);
if (seconds >= 0)
timeout = seconds;
else
fprintf(stderr, "invalid timeout value\n");
break;
}
case 'h':
print_help();
rc = 0;
break;
}
if (optind < argc)
fprintf(stderr, "Extraneous argument: %s\n", argv[optind]);
else if (optind == 1)
fprintf(stderr, "Option missing\n");
return rc;
}
const struct udevadm_cmd udevadm_control = {
.name = "control",
.cmd = adm_control,
.help = "control the udev daemon",
};
|
GitWeb