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-rw-r--r--src/libudev/libudev-monitor.c36
-rw-r--r--src/test/test-udev.c13
-rw-r--r--src/udev/udev-event.c24
-rw-r--r--src/udev/udev-rules.c11
-rw-r--r--src/udev/udev.h11
-rw-r--r--src/udev/udevadm-test.c3
-rw-r--r--src/udev/udevd.c212
7 files changed, 166 insertions, 144 deletions
diff --git a/src/libudev/libudev-monitor.c b/src/libudev/libudev-monitor.c
index b13c579460..282aa2b0d9 100644
--- a/src/libudev/libudev-monitor.c
+++ b/src/libudev/libudev-monitor.c
@@ -144,6 +144,22 @@ static bool udev_has_devtmpfs(struct udev *udev) {
return false;
}
+static void monitor_set_nl_address(struct udev_monitor *udev_monitor) {
+ union sockaddr_union snl;
+ socklen_t addrlen;
+ int r;
+
+ assert(udev_monitor);
+
+ /* get the address the kernel has assigned us
+ * it is usually, but not necessarily the pid
+ */
+ addrlen = sizeof(struct sockaddr_nl);
+ r = getsockname(udev_monitor->sock, &snl.sa, &addrlen);
+ if (r >= 0)
+ udev_monitor->snl.nl.nl_pid = snl.nl.nl_pid;
+}
+
struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const char *name, int fd)
{
struct udev_monitor *udev_monitor;
@@ -183,7 +199,7 @@ struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const c
if (fd < 0) {
udev_monitor->sock = socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC|SOCK_NONBLOCK, NETLINK_KOBJECT_UEVENT);
- if (udev_monitor->sock == -1) {
+ if (udev_monitor->sock < 0) {
log_debug_errno(errno, "error getting socket: %m");
free(udev_monitor);
return NULL;
@@ -191,6 +207,7 @@ struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const c
} else {
udev_monitor->bound = true;
udev_monitor->sock = fd;
+ monitor_set_nl_address(udev_monitor);
}
udev_monitor->snl.nl.nl_family = AF_NETLINK;
@@ -366,6 +383,7 @@ int udev_monitor_allow_unicast_sender(struct udev_monitor *udev_monitor, struct
udev_monitor->snl_trusted_sender.nl.nl_pid = sender->snl.nl.nl_pid;
return 0;
}
+
/**
* udev_monitor_enable_receiving:
* @udev_monitor: the monitor which should receive events
@@ -388,19 +406,9 @@ _public_ int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor)
udev_monitor->bound = true;
}
- if (err >= 0) {
- union sockaddr_union snl;
- socklen_t addrlen;
-
- /*
- * get the address the kernel has assigned us
- * it is usually, but not necessarily the pid
- */
- addrlen = sizeof(struct sockaddr_nl);
- err = getsockname(udev_monitor->sock, &snl.sa, &addrlen);
- if (err == 0)
- udev_monitor->snl.nl.nl_pid = snl.nl.nl_pid;
- } else {
+ if (err >= 0)
+ monitor_set_nl_address(udev_monitor);
+ else {
log_debug_errno(errno, "bind failed: %m");
return -errno;
}
diff --git a/src/test/test-udev.c b/src/test/test-udev.c
index f3953fe26a..d1fe953071 100644
--- a/src/test/test-udev.c
+++ b/src/test/test-udev.c
@@ -28,6 +28,7 @@
#include "missing.h"
#include "selinux-util.h"
+#include "signal-util.h"
#include "udev.h"
#include "udev-util.h"
@@ -79,7 +80,6 @@ int main(int argc, char *argv[]) {
char syspath[UTIL_PATH_SIZE];
const char *devpath;
const char *action;
- sigset_t mask, sigmask_orig;
int err;
err = fake_filesystems();
@@ -93,8 +93,6 @@ int main(int argc, char *argv[]) {
log_debug("version %s", VERSION);
mac_selinux_init("/dev");
- sigprocmask(SIG_SETMASK, NULL, &sigmask_orig);
-
action = argv[1];
if (action == NULL) {
log_error("action missing");
@@ -118,8 +116,7 @@ int main(int argc, char *argv[]) {
event = udev_event_new(dev);
- sigfillset(&mask);
- sigprocmask(SIG_SETMASK, &mask, &sigmask_orig);
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) == 0);
/* do what devtmpfs usually provides us */
if (udev_device_get_devnode(dev) != NULL) {
@@ -142,11 +139,9 @@ int main(int argc, char *argv[]) {
udev_event_execute_rules(event,
3 * USEC_PER_SEC, USEC_PER_SEC,
NULL,
- rules,
- &sigmask_orig);
+ rules);
udev_event_execute_run(event,
- 3 * USEC_PER_SEC, USEC_PER_SEC,
- NULL);
+ 3 * USEC_PER_SEC, USEC_PER_SEC);
out:
mac_selinux_finish();
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 3488ff3370..4dcf8f2e1c 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -385,7 +385,7 @@ out:
}
static int spawn_exec(struct udev_event *event,
- const char *cmd, char *const argv[], char **envp, const sigset_t *sigmask,
+ const char *cmd, char *const argv[], char **envp,
int fd_stdout, int fd_stderr) {
_cleanup_close_ int fd = -1;
@@ -413,9 +413,8 @@ static int spawn_exec(struct udev_event *event,
/* terminate child in case parent goes away */
prctl(PR_SET_PDEATHSIG, SIGTERM);
- /* restore original udev sigmask before exec */
- if (sigmask)
- sigprocmask(SIG_SETMASK, sigmask, NULL);
+ /* restore sigmask before exec */
+ (void) reset_signal_mask();
execve(argv[0], argv, envp);
@@ -699,7 +698,7 @@ out:
int udev_event_spawn(struct udev_event *event,
usec_t timeout_usec,
usec_t timeout_warn_usec,
- const char *cmd, char **envp, const sigset_t *sigmask,
+ const char *cmd, char **envp,
char *result, size_t ressize) {
int outpipe[2] = {-1, -1};
int errpipe[2] = {-1, -1};
@@ -749,7 +748,7 @@ int udev_event_spawn(struct udev_event *event,
log_debug("starting '%s'", cmd);
- spawn_exec(event, cmd, argv, envp, sigmask,
+ spawn_exec(event, cmd, argv, envp,
outpipe[WRITE_END], errpipe[WRITE_END]);
_exit(2 );
@@ -811,8 +810,7 @@ static int rename_netif(struct udev_event *event) {
void udev_event_execute_rules(struct udev_event *event,
usec_t timeout_usec, usec_t timeout_warn_usec,
struct udev_list *properties_list,
- struct udev_rules *rules,
- const sigset_t *sigmask) {
+ struct udev_rules *rules) {
struct udev_device *dev = event->dev;
if (udev_device_get_subsystem(dev) == NULL)
@@ -828,8 +826,7 @@ void udev_event_execute_rules(struct udev_event *event,
udev_rules_apply_to_event(rules, event,
timeout_usec, timeout_warn_usec,
- properties_list,
- sigmask);
+ properties_list);
if (major(udev_device_get_devnum(dev)) != 0)
udev_node_remove(dev);
@@ -847,8 +844,7 @@ void udev_event_execute_rules(struct udev_event *event,
udev_rules_apply_to_event(rules, event,
timeout_usec, timeout_warn_usec,
- properties_list,
- sigmask);
+ properties_list);
/* rename a new network interface, if needed */
if (udev_device_get_ifindex(dev) > 0 && streq(udev_device_get_action(dev), "add") &&
@@ -911,7 +907,7 @@ void udev_event_execute_rules(struct udev_event *event,
}
}
-void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_t timeout_warn_usec, const sigset_t *sigmask) {
+void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_t timeout_warn_usec) {
struct udev_list_entry *list_entry;
udev_list_entry_foreach(list_entry, udev_list_get_entry(&event->run_list)) {
@@ -934,7 +930,7 @@ void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_
udev_event_apply_format(event, cmd, program, sizeof(program));
envp = udev_device_get_properties_envp(event->dev);
- udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, sigmask, NULL, 0);
+ udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, NULL, 0);
}
}
}
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index c2b20cf547..915371525f 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -633,7 +633,7 @@ static int import_file_into_properties(struct udev_device *dev, const char *file
static int import_program_into_properties(struct udev_event *event,
usec_t timeout_usec,
usec_t timeout_warn_usec,
- const char *program, const sigset_t *sigmask) {
+ const char *program) {
struct udev_device *dev = event->dev;
char **envp;
char result[UTIL_LINE_SIZE];
@@ -641,7 +641,7 @@ static int import_program_into_properties(struct udev_event *event,
int err;
envp = udev_device_get_properties_envp(dev);
- err = udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, sigmask, result, sizeof(result));
+ err = udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, result, sizeof(result));
if (err < 0)
return err;
@@ -1895,8 +1895,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules,
struct udev_event *event,
usec_t timeout_usec,
usec_t timeout_warn_usec,
- struct udev_list *properties_list,
- const sigset_t *sigmask) {
+ struct udev_list *properties_list) {
struct token *cur;
struct token *rule;
enum escape_type esc = ESCAPE_UNSET;
@@ -2132,7 +2131,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, sigmask, result, sizeof(result)) < 0) {
+ if (udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, result, sizeof(result)) < 0) {
if (cur->key.op != OP_NOMATCH)
goto nomatch;
} else {
@@ -2168,7 +2167,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (import_program_into_properties(event, timeout_usec, timeout_warn_usec, import, sigmask) != 0)
+ if (import_program_into_properties(event, timeout_usec, timeout_warn_usec, import) != 0)
if (cur->key.op != OP_NOMATCH)
goto nomatch;
break;
diff --git a/src/udev/udev.h b/src/udev/udev.h
index 1b17c615b8..fd8504c424 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -20,7 +20,6 @@
#include <sys/types.h>
#include <sys/param.h>
-#include <signal.h>
#include "macro.h"
#include "sd-rtnl.h"
@@ -73,8 +72,7 @@ struct udev_rules *udev_rules_unref(struct udev_rules *rules);
bool udev_rules_check_timestamp(struct udev_rules *rules);
int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event,
usec_t timeout_usec, usec_t timeout_warn_usec,
- struct udev_list *properties_list,
- const sigset_t *sigmask);
+ struct udev_list *properties_list);
int udev_rules_apply_static_dev_perms(struct udev_rules *rules);
/* udev-event.c */
@@ -86,14 +84,13 @@ int udev_event_apply_subsys_kernel(struct udev_event *event, const char *string,
int udev_event_spawn(struct udev_event *event,
usec_t timeout_usec,
usec_t timeout_warn_usec,
- const char *cmd, char **envp, const sigset_t *sigmask,
+ const char *cmd, char **envp,
char *result, size_t ressize);
void udev_event_execute_rules(struct udev_event *event,
usec_t timeout_usec, usec_t timeout_warn_usec,
struct udev_list *properties_list,
- struct udev_rules *rules,
- const sigset_t *sigset);
-void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_t timeout_warn_usec, const sigset_t *sigset);
+ struct udev_rules *rules);
+void udev_event_execute_run(struct udev_event *event, usec_t timeout_usec, usec_t timeout_warn_usec);
int udev_build_argv(struct udev *udev, char *cmd, int *argc, char *argv[]);
/* udev-watch.c */
diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
index 46ec0e3225..d04e618d0d 100644
--- a/src/udev/udevadm-test.c
+++ b/src/udev/udevadm-test.c
@@ -135,8 +135,7 @@ static int adm_test(struct udev *udev, int argc, char *argv[]) {
udev_event_execute_rules(event,
60 * USEC_PER_SEC, 20 * USEC_PER_SEC,
NULL,
- rules,
- &sigmask_orig);
+ rules);
udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev))
printf("%s=%s\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 056cf8c8ee..eb43091190 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -42,6 +42,8 @@
#include "sd-daemon.h"
#include "sd-event.h"
+
+#include "signal-util.h"
#include "event-util.h"
#include "rtnl-util.h"
#include "cgroup-util.h"
@@ -67,9 +69,8 @@ typedef struct Manager {
sd_event *event;
Hashmap *workers;
struct udev_list_node events;
- char *cgroup;
+ const char *cgroup;
pid_t pid; /* the process that originally allocated the manager object */
- sigset_t sigmask_orig;
struct udev_rules *rules;
struct udev_list properties;
@@ -306,7 +307,6 @@ static void manager_free(Manager *manager) {
udev_list_cleanup(&manager->properties);
udev_rules_unref(manager->rules);
- free(manager->cgroup);
safe_close(manager->fd_inotify);
safe_close_pair(manager->worker_watch);
@@ -448,12 +448,10 @@ static void worker_spawn(Manager *manager, struct event *event) {
udev_event_execute_rules(udev_event,
arg_event_timeout_usec, arg_event_timeout_warn_usec,
&manager->properties,
- manager->rules,
- &manager->sigmask_orig);
+ manager->rules);
udev_event_execute_run(udev_event,
- arg_event_timeout_usec, arg_event_timeout_warn_usec,
- &manager->sigmask_orig);
+ arg_event_timeout_usec, arg_event_timeout_warn_usec);
if (udev_event->rtnl)
/* in case rtnl was initialized */
@@ -1263,38 +1261,91 @@ static int on_post(sd_event_source *s, void *userdata) {
return 1;
}
-static int systemd_fds(int *rctrl, int *rnetlink) {
- int ctrl = -1, netlink = -1;
- int fd, n;
+static int listen_fds(int *rctrl, int *rnetlink) {
+ _cleanup_udev_unref_ struct udev *udev = NULL;
+ int ctrl_fd = -1, netlink_fd = -1;
+ int fd, n, r;
+
+ assert(rctrl);
+ assert(rnetlink);
n = sd_listen_fds(true);
- if (n <= 0)
- return -1;
+ if (n < 0)
+ return n;
for (fd = SD_LISTEN_FDS_START; fd < n + SD_LISTEN_FDS_START; fd++) {
if (sd_is_socket(fd, AF_LOCAL, SOCK_SEQPACKET, -1)) {
- if (ctrl >= 0)
- return -1;
- ctrl = fd;
+ if (ctrl_fd >= 0)
+ return -EINVAL;
+ ctrl_fd = fd;
continue;
}
if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1)) {
- if (netlink >= 0)
- return -1;
- netlink = fd;
+ if (netlink_fd >= 0)
+ return -EINVAL;
+ netlink_fd = fd;
continue;
}
- return -1;
+ return -EINVAL;
}
- if (ctrl < 0 || netlink < 0)
- return -1;
+ if (ctrl_fd < 0) {
+ _cleanup_udev_ctrl_unref_ struct udev_ctrl *ctrl = NULL;
+
+ udev = udev_new();
+ if (!udev)
+ return -ENOMEM;
+
+ ctrl = udev_ctrl_new(udev);
+ if (!ctrl)
+ return log_error_errno(EINVAL, "error initializing udev control socket");
+
+ r = udev_ctrl_enable_receiving(ctrl);
+ if (r < 0)
+ return log_error_errno(EINVAL, "error binding udev control socket");
+
+ fd = udev_ctrl_get_fd(ctrl);
+ if (fd < 0)
+ return log_error_errno(EIO, "could not get ctrl fd");
+
+ ctrl_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+ if (ctrl_fd < 0)
+ return log_error_errno(errno, "could not dup ctrl fd: %m");
+ }
+
+ if (netlink_fd < 0) {
+ _cleanup_udev_monitor_unref_ struct udev_monitor *monitor = NULL;
+
+ if (!udev) {
+ udev = udev_new();
+ if (!udev)
+ return -ENOMEM;
+ }
+
+ monitor = udev_monitor_new_from_netlink(udev, "kernel");
+ if (!monitor)
+ return log_error_errno(EINVAL, "error initializing netlink socket");
+
+ (void) udev_monitor_set_receive_buffer_size(monitor, 128 * 1024 * 1024);
+
+ r = udev_monitor_enable_receiving(monitor);
+ if (r < 0)
+ return log_error_errno(EINVAL, "error binding netlink socket");
+
+ fd = udev_monitor_get_fd(monitor);
+ if (fd < 0)
+ return log_error_errno(netlink_fd, "could not get uevent fd: %m");
+
+ netlink_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
+ if (ctrl_fd < 0)
+ return log_error_errno(errno, "could not dup netlink fd: %m");
+ }
+
+ *rctrl = ctrl_fd;
+ *rnetlink = netlink_fd;
- log_debug("ctrl=%i netlink=%i", ctrl, netlink);
- *rctrl = ctrl;
- *rnetlink = netlink;
return 0;
}
@@ -1439,11 +1490,13 @@ static int parse_argv(int argc, char *argv[]) {
return 1;
}
-static int manager_new(Manager **ret) {
+static int manager_new(Manager **ret, int fd_ctrl, int fd_uevent, const char *cgroup) {
_cleanup_(manager_freep) Manager *manager = NULL;
- int r, fd_ctrl, fd_uevent;
+ int r, fd_worker, one = 1;
assert(ret);
+ assert(fd_ctrl >= 0);
+ assert(fd_uevent >= 0);
manager = new0(Manager, 1);
if (!manager)
@@ -1466,57 +1519,15 @@ static int manager_new(Manager **ret) {
udev_list_node_init(&manager->events);
udev_list_init(manager->udev, &manager->properties, true);
- r = systemd_fds(&fd_ctrl, &fd_uevent);
- if (r >= 0) {
- /* get control and netlink socket from systemd */
- manager->ctrl = udev_ctrl_new_from_fd(manager->udev, fd_ctrl);
- if (!manager->ctrl)
- return log_error_errno(EINVAL, "error taking over udev control socket");
-
- manager->monitor = udev_monitor_new_from_netlink_fd(manager->udev, "kernel", fd_uevent);
- if (!manager->monitor)
- return log_error_errno(EINVAL, "error taking over netlink socket");
-
- /* get our own cgroup, we regularly kill everything udev has left behind */
- r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, 0, &manager->cgroup);
- if (r < 0)
- log_warning_errno(r, "failed to get cgroup: %m");
- } else {
- /* open control and netlink socket */
- manager->ctrl = udev_ctrl_new(manager->udev);
- if (!manager->ctrl)
- return log_error_errno(EINVAL, "error initializing udev control socket");
+ manager->cgroup = cgroup;
- fd_ctrl = udev_ctrl_get_fd(manager->ctrl);
-
- manager->monitor = udev_monitor_new_from_netlink(manager->udev, "kernel");
- if (!manager->monitor)
- return log_error_errno(EINVAL, "error initializing netlink socket");
+ manager->ctrl = udev_ctrl_new_from_fd(manager->udev, fd_ctrl);
+ if (!manager->ctrl)
+ return log_error_errno(EINVAL, "error taking over udev control socket");
- fd_uevent = udev_monitor_get_fd(manager->monitor);
-
- (void) udev_monitor_set_receive_buffer_size(manager->monitor, 128 * 1024 * 1024);
- }
-
- r = udev_monitor_enable_receiving(manager->monitor);
- if (r < 0)
- return log_error_errno(EINVAL, "error binding netlink socket");
-
- r = udev_ctrl_enable_receiving(manager->ctrl);
- if (r < 0)
- return log_error_errno(EINVAL, "error binding udev control socket");
-
- *ret = manager;
- manager = NULL;
-
- return 0;
-}
-
-static int manager_listen(Manager *manager) {
- sigset_t mask;
- int r, fd_worker, one = 1;
-
- assert(manager);
+ manager->monitor = udev_monitor_new_from_netlink_fd(manager->udev, "kernel", fd_uevent);
+ if (!manager->monitor)
+ return log_error_errno(EINVAL, "error taking over netlink socket");
/* unnamed socket from workers to the main daemon */
r = socketpair(AF_LOCAL, SOCK_DGRAM|SOCK_CLOEXEC, 0, manager->worker_watch);
@@ -1536,8 +1547,7 @@ static int manager_listen(Manager *manager) {
udev_watch_restore(manager->udev);
/* block and listen to all signals on signalfd */
- sigfillset(&mask);
- sigprocmask(SIG_SETMASK, &mask, &manager->sigmask_orig);
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, SIGHUP, SIGCHLD, -1) == 0);
r = sd_event_default(&manager->event);
if (r < 0)
@@ -1563,7 +1573,7 @@ static int manager_listen(Manager *manager) {
if (r < 0)
return log_error_errno(r, "error creating watchdog event source: %m");
- r = sd_event_add_io(manager->event, &manager->ctrl_event, udev_ctrl_get_fd(manager->ctrl), EPOLLIN, on_ctrl_msg, manager);
+ r = sd_event_add_io(manager->event, &manager->ctrl_event, fd_ctrl, EPOLLIN, on_ctrl_msg, manager);
if (r < 0)
return log_error_errno(r, "error creating ctrl event source: %m");
@@ -1579,7 +1589,7 @@ static int manager_listen(Manager *manager) {
if (r < 0)
return log_error_errno(r, "error creating inotify event source: %m");
- r = sd_event_add_io(manager->event, &manager->uevent_event, udev_monitor_get_fd(manager->monitor), EPOLLIN, on_uevent, manager);
+ r = sd_event_add_io(manager->event, &manager->uevent_event, fd_uevent, EPOLLIN, on_uevent, manager);
if (r < 0)
return log_error_errno(r, "error creating uevent event source: %m");
@@ -1591,12 +1601,16 @@ static int manager_listen(Manager *manager) {
if (r < 0)
return log_error_errno(r, "error creating post event source: %m");
+ *ret = manager;
+ manager = NULL;
+
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_(manager_freep) Manager *manager = NULL;
- int r;
+ _cleanup_free_ char *cgroup = NULL;
+ int r, fd_ctrl, fd_uevent;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
@@ -1653,13 +1667,20 @@ int main(int argc, char *argv[]) {
dev_setup(NULL, UID_INVALID, GID_INVALID);
- r = manager_new(&manager);
- if (r < 0)
- goto exit;
+ if (getppid() == 1) {
+ /* get our own cgroup, we regularly kill everything udev has left behind
+ we only do this on systemd systems, and only if we are directly spawned
+ by PID1. otherwise we are not guaranteed to have a dedicated cgroup */
+ r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, 0, &cgroup);
+ if (r < 0)
+ log_warning_errno(r, "failed to get cgroup: %m");
+ }
- r = udev_rules_apply_static_dev_perms(manager->rules);
- if (r < 0)
- log_error_errno(r, "failed to apply permissions on static device nodes: %m");
+ r = listen_fds(&fd_ctrl, &fd_uevent);
+ if (r < 0) {
+ r = log_error_errno(r, "could not listen on fds: %m");
+ goto exit;
+ }
if (arg_daemonize) {
pid_t pid;
@@ -1682,14 +1703,21 @@ int main(int argc, char *argv[]) {
setsid();
write_string_file("/proc/self/oom_score_adj", "-1000");
- } else
- sd_notify(false,
- "READY=1\n"
- "STATUS=Processing...");
+ }
- r = manager_listen(manager);
+ r = manager_new(&manager, fd_ctrl, fd_uevent, cgroup);
+ if (r < 0) {
+ r = log_error_errno(r, "failed to allocate manager object: %m");
+ goto exit;
+ }
+
+ r = udev_rules_apply_static_dev_perms(manager->rules);
if (r < 0)
- return log_error_errno(r, "failed to set up fds and listen for events: %m");
+ log_error_errno(r, "failed to apply permissions on static device nodes: %m");
+
+ (void) sd_notify(false,
+ "READY=1\n"
+ "STATUS=Processing...");
r = sd_event_loop(manager->event);
if (r < 0) {