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-rw-r--r--udevcontrol.c120
-rw-r--r--udevd.85
-rw-r--r--udevd.c16
-rw-r--r--udevd.h1
-rw-r--r--udevd.xml6
5 files changed, 91 insertions, 57 deletions
diff --git a/udevcontrol.c b/udevcontrol.c
index 6ca90855c5..b20ce2e071 100644
--- a/udevcontrol.c
+++ b/udevcontrol.c
@@ -54,9 +54,9 @@ int main(int argc, char *argv[], char *envp[])
struct sockaddr_un saddr;
socklen_t addrlen;
const char *env;
+ const char *arg;
const char *val;
int *intval;
- int i;
int retval = 1;
env = getenv("UDEV_LOG");
@@ -70,67 +70,73 @@ int main(int argc, char *argv[], char *envp[])
fprintf(stderr, "missing command\n\n");
goto exit;
}
-
memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
strcpy(ctrl_msg.magic, UDEVD_CTRL_MAGIC);
-
- for (i = 1 ; i < argc; i++) {
- char *arg = argv[i];
-
- if (!strcmp(arg, "stop_exec_queue"))
- ctrl_msg.type = UDEVD_CTRL_STOP_EXEC_QUEUE;
- else if (!strcmp(arg, "start_exec_queue"))
- ctrl_msg.type = UDEVD_CTRL_START_EXEC_QUEUE;
- else if (!strcmp(arg, "reload_rules"))
- ctrl_msg.type = UDEVD_CTRL_RELOAD_RULES;
- else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
- intval = (int *) ctrl_msg.buf;
- val = &arg[strlen("log_priority=")];
- ctrl_msg.type = UDEVD_CTRL_SET_LOG_LEVEL;
- *intval = log_priority(val);
- info("send log_priority=%i", *intval);
- } else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
- char *endp;
- int count;
-
- intval = (int *) ctrl_msg.buf;
- val = &arg[strlen("max_childs=")];
- ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS;
- count = strtoul(val, &endp, 0);
- if (endp[0] != '\0' || count < 1) {
- fprintf(stderr, "invalid number\n");
- goto exit;
- }
- *intval = count;
- info("send max_childs=%i", *intval);
- } else if (!strncmp(arg, "max_childs_running=", strlen("max_childs_running="))) {
- char *endp;
- int count;
-
- intval = (int *) ctrl_msg.buf;
- val = &arg[strlen("max_childs_running=")];
- ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS_RUNNING;
- count = strtoul(val, &endp, 0);
- if (endp[0] != '\0' || count < 1) {
- fprintf(stderr, "invalid number\n");
- goto exit;
- }
- *intval = count;
- info("send max_childs_running=%i", *intval);
- } else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
- printf("Usage: udevcontrol 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"
- " 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");
+ arg = argv[1];
+
+ if (!strcmp(arg, "stop_exec_queue"))
+ ctrl_msg.type = UDEVD_CTRL_STOP_EXEC_QUEUE;
+ else if (!strcmp(arg, "start_exec_queue"))
+ ctrl_msg.type = UDEVD_CTRL_START_EXEC_QUEUE;
+ else if (!strcmp(arg, "reload_rules"))
+ ctrl_msg.type = UDEVD_CTRL_RELOAD_RULES;
+ else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
+ intval = (int *) ctrl_msg.buf;
+ val = &arg[strlen("log_priority=")];
+ ctrl_msg.type = UDEVD_CTRL_SET_LOG_LEVEL;
+ *intval = log_priority(val);
+ info("send log_priority=%i", *intval);
+ } else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
+ char *endp;
+ int count;
+
+ intval = (int *) ctrl_msg.buf;
+ val = &arg[strlen("max_childs=")];
+ ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS;
+ count = strtoul(val, &endp, 0);
+ if (endp[0] != '\0' || count < 1) {
+ fprintf(stderr, "invalid number\n");
+ goto exit;
+ }
+ *intval = count;
+ info("send max_childs=%i", *intval);
+ } else if (!strncmp(arg, "max_childs_running=", strlen("max_childs_running="))) {
+ char *endp;
+ int count;
+
+ intval = (int *) ctrl_msg.buf;
+ val = &arg[strlen("max_childs_running=")];
+ ctrl_msg.type = UDEVD_CTRL_SET_MAX_CHILDS_RUNNING;
+ count = strtoul(val, &endp, 0);
+ if (endp[0] != '\0' || count < 1) {
+ fprintf(stderr, "invalid number\n");
goto exit;
- } else {
- fprintf(stderr, "unrecognized command '%s'\n", arg);
+ }
+ *intval = count;
+ info("send max_childs_running=%i", *intval);
+ } else if (!strncmp(arg, "env", strlen("env"))) {
+ val = argv[2];
+ if (val == NULL) {
+ fprintf(stderr, "missing key\n");
goto exit;
}
+ ctrl_msg.type = UDEVD_CTRL_ENV;
+ strlcpy(ctrl_msg.buf, val, sizeof(ctrl_msg.buf));
+ info("send env '%s'", val);
+ } else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
+ printf("Usage: udevcontrol 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 <var>=<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;
+ } else {
+ fprintf(stderr, "unrecognized command '%s'\n", arg);
+ goto exit;
}
if (getuid() != 0) {
diff --git a/udevd.8 b/udevd.8
index 614e4f338f..25996d1c8d 100644
--- a/udevd.8
+++ b/udevd.8
@@ -71,6 +71,11 @@ Signal udevd to enable the execution of events.
Signal udevd to reload the rules from the config.
.RE
.PP
+\fBenv \fR\fB\fIvar\fR\fR\fB=\fR\fB\fIvalue\fR\fR
+.RS 4
+Set global variable.
+.RE
+.PP
\fBmax_childs\fR
.RS 4
Set the maximum number of events, udevd will handle at the same time.
diff --git a/udevd.c b/udevd.c
index dccc745eff..645b068c0e 100644
--- a/udevd.c
+++ b/udevd.c
@@ -667,6 +667,7 @@ static void get_ctrl_msg(void)
struct ucred *cred;
char cred_msg[CMSG_SPACE(sizeof(struct ucred))];
int *intval;
+ char *pos;
memset(&ctrl_msg, 0x00, sizeof(struct udevd_ctrl_msg));
iov.iov_base = &ctrl_msg;
@@ -703,6 +704,21 @@ static void get_ctrl_msg(void)
}
switch (ctrl_msg.type) {
+ case UDEVD_CTRL_ENV:
+ pos = strchr(ctrl_msg.buf, '=');
+ if (pos == NULL) {
+ err("wrong key format '%s'", ctrl_msg.buf);
+ break;
+ }
+ pos[0] = '\0';
+ if (pos[1] == '\0') {
+ info("udevd message (ENV) received, unset '%s'", ctrl_msg.buf);
+ unsetenv(ctrl_msg.buf);
+ } else {
+ info("udevd message (ENV) received, set '%s=%s'", ctrl_msg.buf, &pos[1]);
+ setenv(ctrl_msg.buf, &pos[1], 1);
+ }
+ break;
case UDEVD_CTRL_STOP_EXEC_QUEUE:
info("udevd message (STOP_EXEC_QUEUE) received");
stop_exec_q = 1;
diff --git a/udevd.h b/udevd.h
index fce86e7126..4ca6d1dcf2 100644
--- a/udevd.h
+++ b/udevd.h
@@ -46,6 +46,7 @@ enum udevd_ctrl_msg_type {
UDEVD_CTRL_SET_MAX_CHILDS,
UDEVD_CTRL_SET_MAX_CHILDS_RUNNING,
UDEVD_CTRL_RELOAD_RULES,
+ UDEVD_CTRL_ENV,
};
struct udevd_ctrl_msg {
diff --git a/udevd.xml b/udevd.xml
index 674fa4d755..cf033a06b2 100644
--- a/udevd.xml
+++ b/udevd.xml
@@ -105,6 +105,12 @@
</listitem>
</varlistentry>
<varlistentry>
+ <term><option>env <replaceable>var</replaceable>=<replaceable>value</replaceable></option></term>
+ <listitem>
+ <para>Set global variable.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
<term><option>max_childs</option></term>
<listitem>
<para>Set the maximum number of events, udevd will handle at the
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-27 08:47:39 +0000