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Diffstat (limited to 'src/udev/udevd.c')
-rw-r--r--src/udev/udevd.c132
1 files changed, 66 insertions, 66 deletions
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index b769be7451..224763eaa5 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -48,6 +48,7 @@
#include "def.h"
#include "cgroup-util.h"
#include "dev-setup.h"
+#include "fileio.h"
static bool debug;
@@ -144,7 +145,7 @@ static void event_queue_delete(struct event *event, bool export)
if (export) {
udev_queue_export_device_finished(udev_queue_export, event->dev);
- log_debug("seq %llu done with %i\n", udev_device_get_seqnum(event->dev), event->exitcode);
+ log_debug("seq %llu done with %i", udev_device_get_seqnum(event->dev), event->exitcode);
}
udev_device_unref(event->dev);
free(event);
@@ -169,7 +170,7 @@ static void worker_unref(struct worker *worker)
worker->refcount--;
if (worker->refcount > 0)
return;
- log_debug("worker [%u] cleaned up\n", worker->pid);
+ log_debug("worker [%u] cleaned up", worker->pid);
worker_cleanup(worker);
}
@@ -234,14 +235,14 @@ static void worker_new(struct event *event)
sigfillset(&mask);
fd_signal = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
if (fd_signal < 0) {
- log_error("error creating signalfd %m\n");
+ log_error("error creating signalfd %m");
rc = 2;
goto out;
}
fd_ep = epoll_create1(EPOLL_CLOEXEC);
if (fd_ep < 0) {
- log_error("error creating epoll fd: %m\n");
+ log_error("error creating epoll fd: %m");
rc = 3;
goto out;
}
@@ -257,7 +258,7 @@ static void worker_new(struct event *event)
if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_signal, &ep_signal) < 0 ||
epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_monitor, &ep_monitor) < 0) {
- log_error("fail to add fds to epoll: %m\n");
+ log_error("fail to add fds to epoll: %m");
rc = 4;
goto out;
}
@@ -266,14 +267,14 @@ static void worker_new(struct event *event)
prctl(PR_SET_PDEATHSIG, SIGTERM);
/* reset OOM score, we only protect the main daemon */
- write_one_line_file("/proc/self/oom_score_adj", "0");
+ write_string_file("/proc/self/oom_score_adj", "0");
for (;;) {
struct udev_event *udev_event;
struct worker_message msg;
int err;
- log_debug("seq %llu running\n", udev_device_get_seqnum(dev));
+ log_debug("seq %llu running", udev_device_get_seqnum(dev));
udev_event = udev_event_new(dev);
if (udev_event == NULL) {
rc = 5;
@@ -308,7 +309,7 @@ static void worker_new(struct event *event)
msg.pid = getpid();
send(worker_watch[WRITE_END], &msg, sizeof(struct worker_message), 0);
- log_debug("seq %llu processed with %i\n", udev_device_get_seqnum(dev), err);
+ log_debug("seq %llu processed with %i", udev_device_get_seqnum(dev), err);
udev_device_unref(dev);
dev = NULL;
@@ -330,7 +331,7 @@ static void worker_new(struct event *event)
if (fdcount < 0) {
if (errno == EINTR)
continue;
- log_error("failed to poll: %m\n");
+ log_error("failed to poll: %m");
goto out;
}
@@ -372,7 +373,7 @@ out:
udev_monitor_unref(worker_monitor);
event->state = EVENT_QUEUED;
free(worker);
- log_error("fork of child failed: %m\n");
+ log_error("fork of child failed: %m");
break;
default:
/* close monitor, but keep address around */
@@ -385,7 +386,7 @@ out:
event->state = EVENT_RUNNING;
udev_list_node_append(&worker->node, &worker_list);
children++;
- log_debug("seq %llu forked new worker [%u]\n", udev_device_get_seqnum(event->dev), pid);
+ log_debug("seq %llu forked new worker [%u]", udev_device_get_seqnum(event->dev), pid);
break;
}
}
@@ -403,7 +404,7 @@ static void event_run(struct event *event)
count = udev_monitor_send_device(monitor, worker->monitor, event->dev);
if (count < 0) {
- log_error("worker [%u] did not accept message %zi (%m), kill it\n", worker->pid, count);
+ log_error("worker [%u] did not accept message %zi (%m), kill it", worker->pid, count);
kill(worker->pid, SIGKILL);
worker->state = WORKER_KILLED;
continue;
@@ -418,7 +419,7 @@ static void event_run(struct event *event)
if (children >= children_max) {
if (children_max > 1)
- log_debug("maximum number (%i) of children reached\n", children);
+ log_debug("maximum number (%i) of children reached", children);
return;
}
@@ -449,7 +450,7 @@ static int event_queue_insert(struct udev_device *dev)
#endif
udev_queue_export_device_queued(udev_queue_export, dev);
- log_debug("seq %llu queued, '%s' '%s'\n", udev_device_get_seqnum(dev),
+ log_debug("seq %llu queued, '%s' '%s'", udev_device_get_seqnum(dev),
udev_device_get_action(dev), udev_device_get_subsystem(dev));
event->state = EVENT_QUEUED;
@@ -634,24 +635,24 @@ static struct udev_ctrl_connection *handle_ctrl_msg(struct udev_ctrl *uctrl)
i = udev_ctrl_get_set_log_level(ctrl_msg);
if (i >= 0) {
- log_debug("udevd message (SET_LOG_PRIORITY) received, log_priority=%i\n", i);
+ log_debug("udevd message (SET_LOG_LEVEL) received, log_priority=%i", i);
log_set_max_level(i);
udev_set_log_priority(udev, i);
worker_kill(udev);
}
if (udev_ctrl_get_stop_exec_queue(ctrl_msg) > 0) {
- log_debug("udevd message (STOP_EXEC_QUEUE) received\n");
+ log_debug("udevd message (STOP_EXEC_QUEUE) received");
stop_exec_queue = true;
}
if (udev_ctrl_get_start_exec_queue(ctrl_msg) > 0) {
- log_debug("udevd message (START_EXEC_QUEUE) received\n");
+ log_debug("udevd message (START_EXEC_QUEUE) received");
stop_exec_queue = false;
}
if (udev_ctrl_get_reload(ctrl_msg) > 0) {
- log_debug("udevd message (RELOAD) received\n");
+ log_debug("udevd message (RELOAD) received");
reload = true;
}
@@ -668,14 +669,14 @@ static struct udev_ctrl_connection *handle_ctrl_msg(struct udev_ctrl *uctrl)
val[0] = '\0';
val = &val[1];
if (val[0] == '\0') {
- log_debug("udevd message (ENV) received, unset '%s'\n", key);
+ log_debug("udevd message (ENV) received, unset '%s'", key);
udev_add_property(udev, key, NULL);
} else {
- log_debug("udevd message (ENV) received, set '%s=%s'\n", key, val);
+ log_debug("udevd message (ENV) received, set '%s=%s'", key, val);
udev_add_property(udev, key, val);
}
} else {
- log_error("wrong key format '%s'\n", key);
+ log_error("wrong key format '%s'", key);
}
free(key);
}
@@ -684,15 +685,15 @@ static struct udev_ctrl_connection *handle_ctrl_msg(struct udev_ctrl *uctrl)
i = udev_ctrl_get_set_children_max(ctrl_msg);
if (i >= 0) {
- log_debug("udevd message (SET_MAX_CHILDREN) received, children_max=%i\n", i);
+ log_debug("udevd message (SET_MAX_CHILDREN) received, children_max=%i", i);
children_max = i;
}
if (udev_ctrl_get_ping(ctrl_msg) > 0)
- log_debug("udevd message (SYNC) received\n");
+ log_debug("udevd message (SYNC) received");
if (udev_ctrl_get_exit(ctrl_msg) > 0) {
- log_debug("udevd message (EXIT) received\n");
+ log_debug("udevd message (EXIT) received");
udev_exit = true;
/* keep reference to block the client until we exit */
udev_ctrl_connection_ref(ctrl_conn);
@@ -714,7 +715,7 @@ static int handle_inotify(struct udev *udev)
buf = malloc(nbytes);
if (buf == NULL) {
- log_error("error getting buffer for inotify\n");
+ log_error("error getting buffer for inotify");
return -1;
}
@@ -726,17 +727,17 @@ static int handle_inotify(struct udev *udev)
ev = (struct inotify_event *)(buf + pos);
dev = udev_watch_lookup(udev, ev->wd);
if (dev != NULL) {
- log_debug("inotify event: %x for %s\n", ev->mask, udev_device_get_devnode(dev));
+ log_debug("inotify event: %x for %s", ev->mask, udev_device_get_devnode(dev));
if (ev->mask & IN_CLOSE_WRITE) {
char filename[UTIL_PATH_SIZE];
int fd;
- log_debug("device %s closed, synthesising 'change'\n", udev_device_get_devnode(dev));
+ log_debug("device %s closed, synthesising 'change'", udev_device_get_devnode(dev));
strscpyl(filename, sizeof(filename), udev_device_get_syspath(dev), "/uevent", NULL);
fd = open(filename, O_WRONLY);
if (fd >= 0) {
if (write(fd, "change", 6) < 0)
- log_debug("error writing uevent: %m\n");
+ log_debug("error writing uevent: %m");
close(fd);
}
}
@@ -774,26 +775,26 @@ static void handle_signal(struct udev *udev, int signo)
if (worker->pid != pid)
continue;
- log_debug("worker [%u] exit\n", pid);
+ log_debug("worker [%u] exit", pid);
if (WIFEXITED(status)) {
if (WEXITSTATUS(status) != 0)
- log_error("worker [%u] exit with return code %i\n",
+ log_error("worker [%u] exit with return code %i",
pid, WEXITSTATUS(status));
} else if (WIFSIGNALED(status)) {
- log_error("worker [%u] terminated by signal %i (%s)\n",
+ log_error("worker [%u] terminated by signal %i (%s)",
pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
} else if (WIFSTOPPED(status)) {
- log_error("worker [%u] stopped\n", pid);
+ log_error("worker [%u] stopped", pid);
} else if (WIFCONTINUED(status)) {
- log_error("worker [%u] continued\n", pid);
+ log_error("worker [%u] continued", pid);
} else {
- log_error("worker [%u] exit with status 0x%04x\n", pid, status);
+ log_error("worker [%u] exit with status 0x%04x", pid, status);
}
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
if (worker->event) {
- log_error("worker [%u] failed while handling '%s'\n",
+ log_error("worker [%u] failed while handling '%s'",
pid, worker->event->devpath);
worker->event->exitcode = -32;
event_queue_delete(worker->event, true);
@@ -891,10 +892,15 @@ static void static_dev_create_from_modules(struct udev *udev)
*/
static void kernel_cmdline_options(struct udev *udev)
{
- char *line, *w, *state;
+ _cleanup_free_ char *line = NULL;
+ char *w, *state;
size_t l;
+ int r;
- if (read_one_line_file("/proc/cmdline", &line) < 0)
+ r = proc_cmdline(&line);
+ if (r < 0)
+ log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
+ if (r <= 0)
return;
FOREACH_WORD_QUOTED(w, l, line, state) {
@@ -924,8 +930,6 @@ static void kernel_cmdline_options(struct udev *udev)
free(s);
}
-
- free(line);
}
int main(int argc, char *argv[])
@@ -961,7 +965,7 @@ int main(int argc, char *argv[])
udev_set_log_fn(udev, udev_main_log);
log_set_max_level(udev_get_log_priority(udev));
- log_debug("version %s\n", VERSION);
+ log_debug("version %s", VERSION);
label_init("/dev");
for (;;) {
@@ -995,7 +999,7 @@ int main(int argc, char *argv[])
resolve_names = -1;
} else {
fprintf(stderr, "resolve-names must be early, late or never\n");
- log_error("resolve-names must be early, late or never\n");
+ log_error("resolve-names must be early, late or never");
goto exit;
}
break;
@@ -1022,16 +1026,12 @@ int main(int argc, char *argv[])
if (getuid() != 0) {
fprintf(stderr, "root privileges required\n");
- log_error("root privileges required\n");
+ log_error("root privileges required");
goto exit;
}
/* set umask before creating any file/directory */
- if (chdir("/") == -1) {
- fprintf(stderr, "Cannot chdir to /\n");
- log_error("Cannot chdir to /\n");
- goto exit;
- }
+ chdir("/");
umask(022);
mkdir("/run/udev", 0755);
@@ -1053,7 +1053,7 @@ int main(int argc, char *argv[])
close(fd);
} else {
fprintf(stderr, "cannot open /dev/null\n");
- log_error("cannot open /dev/null\n");
+ log_error("cannot open /dev/null");
}
}
@@ -1070,7 +1070,7 @@ int main(int argc, char *argv[])
monitor = udev_monitor_new_from_netlink(udev, "kernel");
if (monitor == NULL) {
fprintf(stderr, "error initializing netlink socket\n");
- log_error("error initializing netlink socket\n");
+ log_error("error initializing netlink socket");
rc = 3;
goto exit;
}
@@ -1078,14 +1078,14 @@ int main(int argc, char *argv[])
if (udev_monitor_enable_receiving(monitor) < 0) {
fprintf(stderr, "error binding netlink socket\n");
- log_error("error binding netlink socket\n");
+ log_error("error binding netlink socket");
rc = 3;
goto exit;
}
if (udev_ctrl_enable_receiving(udev_ctrl) < 0) {
fprintf(stderr, "error binding udev control socket\n");
- log_error("error binding udev control socket\n");
+ log_error("error binding udev control socket");
rc = 1;
goto exit;
}
@@ -1095,7 +1095,7 @@ int main(int argc, char *argv[])
/* create queue file before signalling 'ready', to make sure we block 'settle' */
udev_queue_export = udev_queue_export_new(udev);
if (udev_queue_export == NULL) {
- log_error("error creating queue file\n");
+ log_error("error creating queue file");
goto exit;
}
@@ -1107,7 +1107,7 @@ int main(int argc, char *argv[])
case 0:
break;
case -1:
- log_error("fork of daemon failed: %m\n");
+ log_error("fork of daemon failed: %m");
rc = 4;
goto exit;
default:
@@ -1117,7 +1117,7 @@ int main(int argc, char *argv[])
setsid();
- write_one_line_file("/proc/self/oom_score_adj", "-1000");
+ write_string_file("/proc/self/oom_score_adj", "-1000");
}
print_kmsg("starting version " VERSION "\n");
@@ -1137,7 +1137,7 @@ int main(int argc, char *argv[])
fd_inotify = udev_watch_init(udev);
if (fd_inotify < 0) {
fprintf(stderr, "error initializing inotify\n");
- log_error("error initializing inotify\n");
+ log_error("error initializing inotify");
rc = 4;
goto exit;
}
@@ -1161,7 +1161,7 @@ int main(int argc, char *argv[])
fd_signal = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC);
if (fd_signal < 0) {
fprintf(stderr, "error creating signalfd\n");
- log_error("error creating signalfd\n");
+ log_error("error creating signalfd");
rc = 5;
goto exit;
}
@@ -1169,7 +1169,7 @@ int main(int argc, char *argv[])
/* unnamed socket from workers to the main daemon */
if (socketpair(AF_LOCAL, SOCK_DGRAM|SOCK_CLOEXEC, 0, worker_watch) < 0) {
fprintf(stderr, "error creating socketpair\n");
- log_error("error creating socketpair\n");
+ log_error("error creating socketpair");
rc = 6;
goto exit;
}
@@ -1179,7 +1179,7 @@ int main(int argc, char *argv[])
rules = udev_rules_new(udev, resolve_names);
if (rules == NULL) {
- log_error("error reading rules\n");
+ log_error("error reading rules");
goto exit;
}
@@ -1205,7 +1205,7 @@ int main(int argc, char *argv[])
fd_ep = epoll_create1(EPOLL_CLOEXEC);
if (fd_ep < 0) {
- log_error("error creating epoll fd: %m\n");
+ log_error("error creating epoll fd: %m");
goto exit;
}
if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_ctrl, &ep_ctrl) < 0 ||
@@ -1213,7 +1213,7 @@ int main(int argc, char *argv[])
epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_signal, &ep_signal) < 0 ||
epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_netlink, &ep_netlink) < 0 ||
epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_worker, &ep_worker) < 0) {
- log_error("fail to add fds to epoll: %m\n");
+ log_error("fail to add fds to epoll: %m");
goto exit;
}
@@ -1226,11 +1226,11 @@ int main(int argc, char *argv[])
children_max += CPU_COUNT(&cpu_set) * 2;
}
}
- log_debug("set children_max to %u\n", children_max);
+ log_debug("set children_max to %u", children_max);
rc = udev_rules_apply_static_dev_perms(rules);
if (rc < 0)
- log_error("failed to apply permissions on static device nodes - %s\n", strerror(-rc));
+ log_error("failed to apply permissions on static device nodes - %s", strerror(-rc));
udev_list_node_init(&event_list);
udev_list_node_init(&worker_list);
@@ -1290,13 +1290,13 @@ int main(int argc, char *argv[])
/* timeout */
if (udev_exit) {
- log_error("timeout, giving up waiting for workers to finish\n");
+ log_error("timeout, giving up waiting for workers to finish");
break;
}
/* kill idle workers */
if (udev_list_node_is_empty(&event_list)) {
- log_debug("cleanup idle workers\n");
+ log_debug("cleanup idle workers");
worker_kill(udev);
}
@@ -1308,14 +1308,14 @@ int main(int argc, char *argv[])
continue;
if ((now(CLOCK_MONOTONIC) - worker->event_start_usec) > 30 * 1000 * 1000) {
- log_error("worker [%u] %s timeout; kill it\n", worker->pid,
+ log_error("worker [%u] %s timeout; kill it", worker->pid,
worker->event ? worker->event->devpath : "<idle>");
kill(worker->pid, SIGKILL);
worker->state = WORKER_KILLED;
/* drop reference taken for state 'running' */
worker_unref(worker);
if (worker && worker->event) {
- log_error("seq %llu '%s' killed\n",
+ log_error("seq %llu '%s' killed",
udev_device_get_seqnum(worker->event->dev), worker->event->devpath);
worker->event->exitcode = -64;
event_queue_delete(worker->event, true);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-29 07:58:32 +0000