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
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (C) 2005-2006 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#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 "udevd.h"
int udevadm_control(struct udev *udev, int argc, char *argv[])
{
struct udev_ctrl *uctrl;
int rc = 1;
/* compat values with '_' will be removed in a future release */
static const struct option options[] = {
{ "log-priority", 1, NULL, 'l' },
{ "log_priority", 1, NULL, 'l' + 256 },
{ "stop-exec-queue", 0, NULL, 's' },
{ "stop_exec_queue", 0, NULL, 's' + 256 },
{ "start-exec-queue", 0, NULL, 'S' },
{ "start_exec_queue", 0, NULL, 'S' + 256},
{ "reload-rules", 0, NULL, 'R' },
{ "reload_rules", 0, NULL, 'R' + 256},
{ "env", 1, NULL, 'e' },
{ "max-childs", 1, NULL, 'm' },
{ "max_childs", 1, NULL, 'm' + 256},
{ "max-childs-running", 1, NULL, 'M' },
{ "max_childs_running", 1, NULL, 'M' + 256},
{ "help", 0, NULL, 'h' },
{}
};
if (getuid() != 0) {
fprintf(stderr, "root privileges required\n");
goto exit;
}
uctrl = udev_ctrl_new_from_socket(udev, UDEVD_CTRL_SOCK_PATH);
if (uctrl == NULL)
goto exit;
while (1) {
int option;
int i;
char *endp;
option = getopt_long(argc, argv, "l:sSRe:m:M:h", options, NULL);
if (option == -1)
break;
if (option > 255) {
info(udev, "udevadm control expects commands without underscore, "
"this will stop working in a future release\n");
fprintf(stderr, "udevadm control expects commands without underscore, "
"this will stop working in a future release\n");
}
switch (option) {
case 'l':
case 'l' + 256:
i = log_priority(optarg);
if (i < 0) {
fprintf(stderr, "invalid number '%s'\n", optarg);
goto exit;
}
udev_ctrl_set_log_level(uctrl, log_priority(optarg));
break;
case 's':
case 's' + 256:
udev_ctrl_stop_exec_queue(uctrl);
break;
case 'S':
case 'S' + 256:
udev_ctrl_start_exec_queue(uctrl);
break;
case 'R':
case 'R' + 256:
udev_ctrl_reload_rules(uctrl);
break;
case 'e':
if (strchr(optarg, '=') == NULL) {
fprintf(stderr, "expect <KEY>=<valaue> instead of '%s'\n", optarg);
goto exit;
}
udev_ctrl_set_env(uctrl, optarg);
break;
case 'm':
case 'm' + 256:
i = strtoul(optarg, &endp, 0);
if (endp[0] != '\0' || i < 1) {
fprintf(stderr, "invalid number '%s'\n", optarg);
goto exit;
}
udev_ctrl_set_max_childs(uctrl, i);
break;
case 'M':
case 'M' + 256:
i = strtoul(optarg, &endp, 0);
if (endp[0] != '\0' || i < 1) {
fprintf(stderr, "invalid number '%s'\n", optarg);
goto exit;
}
udev_ctrl_set_max_childs_running(uctrl, i);
break;
case 'h':
printf("Usage: udevadm control COMMAND\n"
" --log-priority=<level> set the udev log level for the daemon\n"
" --stop-exec-queue keep udevd from executing events, queue only\n"
" --start-exec-queue execute events, flush queue\n"
" --reload-rules reloads the rules files\n"
" --env=<KEY>=<value> set a global environment variable\n"
" --max-childs=<N> maximum number of childs\n"
" --max-childs-running=<N> maximum number of childs running at the same time\n"
" --help print this help text\n\n");
goto exit;
default:
goto exit;
}
}
/* compat stuff which will be removed in a future release */
if (argv[optind] != NULL) {
const char *arg = argv[optind];
fprintf(stderr, "udevadm control commands requires the --<command> format, "
"this will stop working in a future release\n");
err(udev, "udevadm control commands requires the --<command> format, "
"this will stop working in a future release\n");
if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
udev_ctrl_set_log_level(uctrl, log_priority(&arg[strlen("log_priority=")]));
} else if (!strcmp(arg, "stop_exec_queue")) {
udev_ctrl_stop_exec_queue(uctrl);
} else if (!strcmp(arg, "start_exec_queue")) {
udev_ctrl_start_exec_queue(uctrl);
} else if (!strcmp(arg, "reload_rules")) {
udev_ctrl_reload_rules(uctrl);
} else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
udev_ctrl_set_max_childs(uctrl, strtoul(&arg[strlen("max_childs=")], NULL, 0));
} else if (!strncmp(arg, "max_childs_running=", strlen("max_childs_running="))) {
udev_ctrl_set_max_childs_running(uctrl, strtoul(&arg[strlen("max_childs_running=")], NULL, 0));
} else if (!strncmp(arg, "env", strlen("env"))) {
udev_ctrl_set_env(uctrl, &arg[strlen("env=")]);
} else {
fprintf(stderr, "unrecognized command '%s'\n", arg);
err(udev, "unrecognized command '%s'\n", arg);
}
}
exit:
udev_ctrl_unref(uctrl);
return rc;
}
|
