4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <sys/types.h>
29 #include <sys/socket.h>
37 static int udev_log = 0;
40 void log_message (int priority, const char *format, ...)
44 if (priority > udev_log)
47 va_start(args, format);
48 vsyslog(priority, format, args);
53 static void usage(void)
55 printf("Usage: udevcontrol COMMAND\n"
56 " log_priority=<level> set the udev log level for the daemon\n"
57 " stop_exec_queue keep udevd from executing events, queue only\n"
58 " start_exec_queue execute events, flush queue\n"
59 " reload_rules reloads the rules files\n"
60 " max_childs=<N> maximum number of childs\n"
61 " max_childs_running=<N> maximum number of childs running at the same time\n"
62 " --help print this help text\n\n");
65 int main(int argc, char *argv[], char *envp[])
67 static struct udevd_ctrl_msg ctrl_msg;
68 struct sockaddr_un saddr;
76 env = getenv("UDEV_LOG");
78 udev_log = log_priority(env);
80 logging_init("udevcontrol");
81 dbg("version %s", UDEV_VERSION);
84 fprintf(stderr, "missing command\n\n");
89 memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
90 strcpy(ctrl_msg.magic, UDEVD_CTRL_MAGIC);
92 for (i = 1 ; i < argc; i++) {
95 if (!strcmp(arg, "stop_exec_queue"))
96 ctrl_msg.type = UDEVD_CTRL_STOP_EXEC_QUEUE;
97 else if (!strcmp(arg, "start_exec_queue"))
98 ctrl_msg.type = UDEVD_CTRL_START_EXEC_QUEUE;
99 else if (!strcmp(arg, "reload_rules"))
100 ctrl_msg.type = UDEVD_CTRL_RELOAD_RULES;
101 else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
102 intval = (int *) ctrl_msg.buf;
103 val = &arg[strlen("log_priority=")];
104 ctrl_msg.type = UDEVD_CTRL_SET_LOG_LEVEL;
105 *intval = log_priority(val);
106 info("send log_priority=%i", *intval);
107 } else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
111 intval = (int *) ctrl_msg.buf;
112 val = &arg[strlen("max_childs=")];
113 ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS;
114 count = strtoul(val, &endp, 0);
115 if (endp[0] != '\0' || count < 1) {
116 fprintf(stderr, "invalid number\n");
120 info("send max_childs=%i", *intval);
121 } else if (!strncmp(arg, "max_childs_running=", strlen("max_childs_running="))) {
125 intval = (int *) ctrl_msg.buf;
126 val = &arg[strlen("max_childs_running=")];
127 ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS_RUNNING;
128 count = strtoul(val, &endp, 0);
129 if (endp[0] != '\0' || count < 1) {
130 fprintf(stderr, "invalid number\n");
134 info("send max_childs_running=%i", *intval);
135 } else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
139 fprintf(stderr, "unknown option\n\n");
146 fprintf(stderr, "need to be root, exit\n\n");
150 sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
152 err("error getting socket: %s", strerror(errno));
156 memset(&saddr, 0x00, sizeof(struct sockaddr_un));
157 saddr.sun_family = AF_LOCAL;
158 /* use abstract namespace for socket path */
159 strcpy(&saddr.sun_path[1], UDEVD_CTRL_SOCK_PATH);
160 addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
162 retval = sendto(sock, &ctrl_msg, sizeof(ctrl_msg), 0, (struct sockaddr *)&saddr, addrlen);
164 err("error sending message: %s", strerror(errno));
167 dbg("sent message type=0x%02x, %u bytes sent", ctrl_msg.type, retval);