#include <signal.h>
#include <sys/wait.h>
#include <unistd.h>
+#include <sys/inotify.h>
+#include <sys/epoll.h>
#include <sys/poll.h>
#include <sys/reboot.h>
#include <sys/ioctl.h>
#include "audit-fd.h"
#include "boot-timestamps.h"
#include "env-util.h"
-#include "bus-errors.h"
+#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-util.h"
#include "dbus.h"
#include "dbus-job.h"
#include "dbus-manager.h"
#include "bus-kernel.h"
-
-/* As soon as 5s passed since a unit was added to our GC queue, make sure to run a gc sweep */
-#define GC_QUEUE_USEC_MAX (10*USEC_PER_SEC)
+#include "time-util.h"
/* Initial delay and the interval for printing status messages about running jobs */
#define JOBS_IN_PROGRESS_WAIT_USEC (5*USEC_PER_SEC)
#define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3)
#define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3
-#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
-
static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
static int manager_dispatch_idle_pipe_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata);
static int manager_dispatch_jobs_in_progress(sd_event_source *source, usec_t usec, void *userdata);
static int manager_dispatch_run_queue(sd_event_source *source, void *userdata);
+static int manager_run_generators(Manager *m);
+static void manager_undo_generators(Manager *m);
static int manager_watch_jobs_in_progress(Manager *m) {
usec_t next;
uint64_t x;
assert(m);
+ assert(m->n_running_jobs > 0);
manager_flip_auto_status(m, true);
m->jobs_in_progress_iteration++;
if (m->n_running_jobs > 1)
- if (asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs) < 0)
- job_of_n = NULL;
+ asprintf(&job_of_n, "(%u of %u) ", counter, m->n_running_jobs);
format_timespan(time, sizeof(time), now(CLOCK_MONOTONIC) - j->begin_usec, 1*USEC_PER_SEC);
if (job_get_timeout(j, &x) > 0)
format_timespan(limit, sizeof(limit), x - j->begin_usec, 1*USEC_PER_SEC);
- manager_status_printf(m, true, cylon,
+ manager_status_printf(m, STATUS_TYPE_EPHEMERAL, cylon,
"%sA %s job is running for %s (%s / %s)",
strempty(job_of_n),
job_type_to_string(j->type),
unit_description(j->unit),
time, limit);
+}
+
+static int have_ask_password(void) {
+ _cleanup_closedir_ DIR *dir;
+
+ dir = opendir("/run/systemd/ask-password");
+ if (!dir) {
+ if (errno == ENOENT)
+ return false;
+ else
+ return -errno;
+ }
+
+ for (;;) {
+ struct dirent *de;
+
+ errno = 0;
+ de = readdir(dir);
+ if (!de && errno != 0)
+ return -errno;
+ if (!de)
+ return false;
+
+ if (startswith(de->d_name, "ask."))
+ return true;
+ }
+}
+
+static int manager_dispatch_ask_password_fd(sd_event_source *source,
+ int fd, uint32_t revents, void *userdata) {
+ Manager *m = userdata;
+
+ assert(m);
+
+ flush_fd(fd);
+
+ m->have_ask_password = have_ask_password();
+ if (m->have_ask_password < 0)
+ /* Log error but continue. Negative have_ask_password
+ * is treated as unknown status. */
+ log_error_errno(m->have_ask_password, "Failed to list /run/systemd/ask-password: %m");
+
+ return 0;
+}
+
+static void manager_close_ask_password(Manager *m) {
+ assert(m);
+
+ m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd);
+ m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source);
+ m->have_ask_password = -EINVAL;
+}
+
+static int manager_check_ask_password(Manager *m) {
+ int r;
+
+ assert(m);
+
+ if (!m->ask_password_event_source) {
+ assert(m->ask_password_inotify_fd < 0);
+
+ mkdir_p_label("/run/systemd/ask-password", 0755);
+
+ m->ask_password_inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
+ if (m->ask_password_inotify_fd < 0)
+ return log_error_errno(errno, "inotify_init1() failed: %m");
+
+ if (inotify_add_watch(m->ask_password_inotify_fd, "/run/systemd/ask-password", IN_CREATE|IN_DELETE|IN_MOVE) < 0) {
+ log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m");
+ manager_close_ask_password(m);
+ return -errno;
+ }
+
+ r = sd_event_add_io(m->event, &m->ask_password_event_source,
+ m->ask_password_inotify_fd, EPOLLIN,
+ manager_dispatch_ask_password_fd, m);
+ if (r < 0) {
+ log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m");
+ manager_close_ask_password(m);
+ return -errno;
+ }
+
+ /* Queries might have been added meanwhile... */
+ manager_dispatch_ask_password_fd(m->ask_password_event_source,
+ m->ask_password_inotify_fd, EPOLLIN, m);
+ }
+ return m->have_ask_password;
}
static int manager_watch_idle_pipe(Manager *m) {
return 0;
r = sd_event_add_io(m->event, &m->idle_pipe_event_source, m->idle_pipe[2], EPOLLIN, manager_dispatch_idle_pipe_fd, m);
- if (r < 0) {
- log_error("Failed to watch idle pipe: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to watch idle pipe: %m");
return 0;
}
* CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */
m->time_change_fd = timerfd_create(CLOCK_REALTIME, TFD_NONBLOCK|TFD_CLOEXEC);
- if (m->time_change_fd < 0) {
- log_error("Failed to create timerfd: %m");
- return -errno;
- }
+ if (m->time_change_fd < 0)
+ return log_error_errno(errno, "Failed to create timerfd: %m");
if (timerfd_settime(m->time_change_fd, TFD_TIMER_ABSTIME|TFD_TIMER_CANCEL_ON_SET, &its, NULL) < 0) {
- log_debug("Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
+ log_debug_errno(errno, "Failed to set up TFD_TIMER_CANCEL_ON_SET, ignoring: %m");
m->time_change_fd = safe_close(m->time_change_fd);
return 0;
}
r = sd_event_add_io(m->event, &m->time_change_event_source, m->time_change_fd, EPOLLIN, manager_dispatch_time_change_fd, m);
- if (r < 0) {
- log_error("Failed to create time change event source: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to create time change event source: %m");
log_debug("Set up TFD_TIMER_CANCEL_ON_SET timerfd.");
* this will fail with EPERM (older) or EINVAL (newer), so
* ignore that. */
if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)
- log_warning("Failed to enable ctrl-alt-del handling: %m");
+ log_warning_errno(errno, "Failed to enable ctrl-alt-del handling: %m");
fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
/* Support systems without virtual console */
if (fd != -ENOENT)
- log_warning("Failed to open /dev/tty0: %m");
+ log_warning_errno(errno, "Failed to open /dev/tty0: %m");
} else {
/* Enable that we get SIGWINCH on kbrequest */
if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
- log_warning("Failed to enable kbrequest handling: %m");
+ log_warning_errno(errno, "Failed to enable kbrequest handling: %m");
}
return 0;
assert(m);
- if (m->test_run)
- return 0;
-
- /* We are not interested in SIGSTOP and friends. */
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
- assert_se(sigemptyset(&mask) == 0);
+ /* We make liberal use of realtime signals here. On
+ * Linux/glibc we have 30 of them (with the exception of Linux
+ * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
+ * (aka SIGRTMAX). */
+ assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask,
SIGCHLD, /* Child died */
SIGTERM, /* Reexecute daemon */
SIGINT, /* Kernel sends us this on control-alt-del */
SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
+
SIGRTMIN+0, /* systemd: start default.target */
SIGRTMIN+1, /* systemd: isolate rescue.target */
SIGRTMIN+2, /* systemd: isolate emergency.target */
SIGRTMIN+4, /* systemd: start poweroff.target */
SIGRTMIN+5, /* systemd: start reboot.target */
SIGRTMIN+6, /* systemd: start kexec.target */
+
+ /* ... space for more special targets ... */
+
SIGRTMIN+13, /* systemd: Immediate halt */
SIGRTMIN+14, /* systemd: Immediate poweroff */
SIGRTMIN+15, /* systemd: Immediate reboot */
SIGRTMIN+16, /* systemd: Immediate kexec */
+
+ /* ... space for more immediate system state changes ... */
+
SIGRTMIN+20, /* systemd: enable status messages */
SIGRTMIN+21, /* systemd: disable status messages */
SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
+
+ /* .. one free signal here ... */
+
+#if !defined(__hppa64__) && !defined(__hppa__)
+ /* Apparently Linux on hppa has fewer RT
+ * signals (SIGRTMAX is SIGRTMIN+25 there),
+ * hence let's not try to make use of them
+ * here. Since these commands are accessible
+ * by different means and only really a safety
+ * net, the missing functionality on hppa
+ * shouldn't matter. */
+
SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
SIGRTMIN+27, /* systemd: set log target to console */
SIGRTMIN+28, /* systemd: set log target to kmsg */
- SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete)*/
+ SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg (obsolete) */
+
+ /* ... one free signal here SIGRTMIN+30 ... */
+#endif
-1);
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
return r;
/* Process signals a bit earlier than the rest of things, but
- * later that notify_fd processing, so that the notify
+ * later than notify_fd processing, so that the notify
* processing can still figure out to which process/service a
* message belongs, before we reap the process. */
r = sd_event_source_set_priority(m->signal_event_source, -5);
m->running_as = running_as;
m->exit_code = _MANAGER_EXIT_CODE_INVALID;
m->default_timer_accuracy_usec = USEC_PER_MINUTE;
- m->start_timeout_usec = DEFAULT_MANAGER_START_TIMEOUT_USEC;
- m->start_timeout_action = FAILURE_ACTION_POWEROFF_FORCE;
m->idle_pipe[0] = m->idle_pipe[1] = m->idle_pipe[2] = m->idle_pipe[3] = -1;
- m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = -1;
+ m->pin_cgroupfs_fd = m->notify_fd = m->signal_fd = m->time_change_fd = m->dev_autofs_fd = m->private_listen_fd = m->kdbus_fd = m->utab_inotify_fd = -1;
m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
+ m->ask_password_inotify_fd = -1;
+ m->have_ask_password = -EINVAL; /* we don't know */
+
m->test_run = test_run;
+ /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */
+ RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7);
+
r = manager_default_environment(m);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->units, string_hash_func, string_compare_func);
+ r = hashmap_ensure_allocated(&m->units, &string_hash_ops);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->jobs, trivial_hash_func, trivial_compare_func);
+ r = hashmap_ensure_allocated(&m->jobs, NULL);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func);
+ r = hashmap_ensure_allocated(&m->cgroup_unit, &string_hash_ops);
if (r < 0)
goto fail;
- r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func);
+ r = hashmap_ensure_allocated(&m->watch_bus, &string_hash_ops);
if (r < 0)
goto fail;
- r = set_ensure_allocated(&m->startup_units, trivial_hash_func, trivial_compare_func);
+ r = set_ensure_allocated(&m->startup_units, NULL);
if (r < 0)
goto fail;
- r = set_ensure_allocated(&m->failed_units, trivial_hash_func, trivial_compare_func);
+ r = set_ensure_allocated(&m->failed_units, NULL);
if (r < 0)
goto fail;
m->notify_event_source = sd_event_source_unref(m->notify_event_source);
fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
- if (fd < 0) {
- log_error("Failed to allocate notification socket: %m");
- return -errno;
- }
+ if (fd < 0)
+ return log_error_errno(errno, "Failed to allocate notification socket: %m");
if (m->running_as == SYSTEMD_SYSTEM)
m->notify_socket = strdup("/run/systemd/notify");
e = getenv("XDG_RUNTIME_DIR");
if (!e) {
- log_error("XDG_RUNTIME_DIR is not set: %m");
+ log_error_errno(errno, "XDG_RUNTIME_DIR is not set: %m");
return -EINVAL;
}
if (!m->notify_socket)
return log_oom();
+ (void) mkdir_parents_label(m->notify_socket, 0755);
+ (void) unlink(m->notify_socket);
+
strncpy(sa.un.sun_path, m->notify_socket, sizeof(sa.un.sun_path)-1);
r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path));
- if (r < 0) {
- log_error("bind(%s) failed: %m", sa.un.sun_path);
- return -errno;
- }
+ if (r < 0)
+ return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path);
r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one));
- if (r < 0) {
- log_error("SO_PASSCRED failed: %m");
- return -errno;
- }
+ if (r < 0)
+ return log_error_errno(errno, "SO_PASSCRED failed: %m");
m->notify_fd = fd;
fd = -1;
if (!m->notify_event_source) {
r = sd_event_add_io(m->event, &m->notify_event_source, m->notify_fd, EPOLLIN, manager_dispatch_notify_fd, m);
- if (r < 0) {
- log_error("Failed to allocate notify event source: %s", strerror(-r));
- return -errno;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate notify event source: %m");
/* Process signals a bit earlier than SIGCHLD, so that we can
* still identify to which service an exit message belongs */
r = sd_event_source_set_priority(m->notify_event_source, -7);
- if (r < 0) {
- log_error("Failed to set priority of notify event source: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to set priority of notify event source: %m");
}
return 0;
if (m->test_run || m->kdbus_fd >= 0)
return 0;
- m->kdbus_fd = bus_kernel_create_bus(m->running_as == SYSTEMD_SYSTEM ? "system" : "user", m->running_as == SYSTEMD_SYSTEM, &p);
- if (m->kdbus_fd < 0) {
- log_debug("Failed to set up kdbus: %s", strerror(-m->kdbus_fd));
- return m->kdbus_fd;
- }
+ if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0)
+ bus_kernel_fix_attach_mask();
- log_debug("Successfully set up kdbus on %s", p);
+ m->kdbus_fd = bus_kernel_create_bus(
+ m->running_as == SYSTEMD_SYSTEM ? "system" : "user",
+ m->running_as == SYSTEMD_SYSTEM, &p);
- /* Create the namespace directory here, so that the contents
- * of that directory is not visible to non-root users. This is
- * necessary to ensure that users cannot get access to busses
- * of virtualized users when no UID namespacing is used. */
- if (m->running_as == SYSTEMD_SYSTEM)
- mkdir_p_label("/dev/kdbus/domain", 0700);
+ if (m->kdbus_fd < 0)
+ return log_debug_errno(m->kdbus_fd, "Failed to set up kdbus: %m");
+
+ log_debug("Successfully set up kdbus on %s", p);
#endif
return 0;
if (u->gc_marker == gc_marker + GC_OFFSET_BAD ||
u->gc_marker == gc_marker + GC_OFFSET_UNSURE) {
- log_debug_unit(u->id, "Collecting %s", u->id);
+ log_unit_debug(u->id, "Collecting %s", u->id);
u->gc_marker = gc_marker + GC_OFFSET_BAD;
unit_add_to_cleanup_queue(u);
}
m->n_running_jobs = 0;
}
-void manager_free(Manager *m) {
+Manager* manager_free(Manager *m) {
UnitType c;
int i;
- assert(m);
+ if (!m)
+ return NULL;
manager_clear_jobs_and_units(m);
safe_close(m->time_change_fd);
safe_close(m->kdbus_fd);
- manager_close_idle_pipe(m);
+ manager_close_ask_password(m);
- sd_event_source_unref(m->start_timeout_event_source);
- free(m->start_timeout_reboot_arg);
+ manager_close_idle_pipe(m);
udev_unref(m->udev);
sd_event_unref(m->event);
hashmap_free(m->units_requiring_mounts_for);
free(m);
+ return NULL;
}
int manager_enumerate(Manager *m) {
- int r = 0, q;
+ int r = 0;
UnitType c;
assert(m);
/* Let's ask every type to load all units from disk/kernel
* that it might know */
- for (c = 0; c < _UNIT_TYPE_MAX; c++)
- if (unit_vtable[c]->enumerate) {
- q = unit_vtable[c]->enumerate(m);
- if (q < 0)
- r = q;
+ for (c = 0; c < _UNIT_TYPE_MAX; c++) {
+ int q;
+
+ if (unit_vtable[c]->supported && !unit_vtable[c]->supported(m)) {
+ log_info("Unit type .%s is not supported on this system.", unit_type_to_string(c));
+ continue;
}
+ if (!unit_vtable[c]->enumerate)
+ continue;
+
+ q = unit_vtable[c]->enumerate(m);
+ if (q < 0)
+ r = q;
+ }
+
manager_dispatch_load_queue(m);
return r;
}
static void manager_build_unit_path_cache(Manager *m) {
char **i;
- _cleanup_free_ DIR *d = NULL;
+ _cleanup_closedir_ DIR *d = NULL;
int r;
assert(m);
set_free_free(m->unit_path_cache);
- m->unit_path_cache = set_new(string_hash_func, string_compare_func);
+ m->unit_path_cache = set_new(&string_hash_ops);
if (!m->unit_path_cache) {
log_error("Failed to allocate unit path cache.");
return;
d = opendir(*i);
if (!d) {
if (errno != ENOENT)
- log_error("Failed to open directory %s: %m", *i);
+ log_error_errno(errno, "Failed to open directory %s: %m", *i);
continue;
}
while ((de = readdir(d))) {
char *p;
- if (ignore_file(de->d_name))
+ if (hidden_file(de->d_name))
continue;
p = strjoin(streq(*i, "/") ? "" : *i, "/", de->d_name, NULL);
return;
fail:
- log_error("Failed to build unit path cache: %s", strerror(-r));
+ log_error_errno(r, "Failed to build unit path cache: %m");
set_free_free(m->unit_path_cache);
m->unit_path_cache = NULL;
return 0;
}
-static int on_start_timeout(sd_event_source *s, usec_t usec, void *userdata) {
- Manager *m = userdata;
-
- assert(s);
- assert(m);
-
- m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
- log_error("Startup timed out.");
-
- failure_action(m, m->start_timeout_action, m->start_timeout_reboot_arg);
- return 0;
-}
-
int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
int r, q;
assert(m);
dual_timestamp_get(&m->generators_start_timestamp);
- manager_run_generators(m);
+ r = manager_run_generators(m);
dual_timestamp_get(&m->generators_finish_timestamp);
+ if (r < 0)
+ return r;
r = lookup_paths_init(
&m->lookup_paths, m->running_as, true,
m->send_reloading_done = true;
}
- /* Possibly set up a start timeout */
- if (!dual_timestamp_is_set(&m->finish_timestamp)) {
- m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
- if (m->start_timeout_usec) {
- r = sd_event_add_time(
- m->event,
- &m->start_timeout_event_source,
- CLOCK_MONOTONIC,
- now(CLOCK_MONOTONIC) + m->start_timeout_usec, 0,
- on_start_timeout, m);
- if (r < 0)
- log_error("Failed to add start timeout event: %s", strerror(-r));
- }
- }
-
return r;
}
assert(unit);
assert(mode < _JOB_MODE_MAX);
- if (mode == JOB_ISOLATE && type != JOB_START) {
- sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
- return -EINVAL;
- }
+ if (mode == JOB_ISOLATE && type != JOB_START)
+ return sd_bus_error_setf(e, SD_BUS_ERROR_INVALID_ARGS, "Isolate is only valid for start.");
- if (mode == JOB_ISOLATE && !unit->allow_isolate) {
- sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
- return -EPERM;
- }
+ if (mode == JOB_ISOLATE && !unit->allow_isolate)
+ return sd_bus_error_setf(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated.");
- log_debug_unit(unit->id,
+ log_unit_debug(unit->id,
"Trying to enqueue job %s/%s/%s", unit->id,
job_type_to_string(type), job_mode_to_string(mode));
if (r < 0)
goto tr_abort;
- log_debug_unit(unit->id,
+ log_unit_debug(unit->id,
"Enqueued job %s/%s as %u", unit->id,
job_type_to_string(type), (unsigned) tr->anchor_job->id);
return n;
}
-static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n) {
+static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char *buf, size_t n, FDSet *fds) {
_cleanup_strv_free_ char **tags = NULL;
assert(m);
return;
}
- log_debug_unit(u->id, "Got notification message for unit %s", u->id);
+ log_unit_debug(u->id, "Got notification message for unit %s", u->id);
if (UNIT_VTABLE(u)->notify_message)
- UNIT_VTABLE(u)->notify_message(u, pid, tags);
+ UNIT_VTABLE(u)->notify_message(u, pid, tags, fds);
}
static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
Manager *m = userdata;
ssize_t n;
+ int r;
assert(m);
assert(m->notify_fd == fd);
}
for (;;) {
- char buf[4096];
+ _cleanup_fdset_free_ FDSet *fds = NULL;
+ char buf[NOTIFY_BUFFER_MAX+1];
struct iovec iovec = {
.iov_base = buf,
.iov_len = sizeof(buf)-1,
};
- bool found = false;
-
union {
struct cmsghdr cmsghdr;
- uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +
+ CMSG_SPACE(sizeof(int) * NOTIFY_FD_MAX)];
} control = {};
-
struct msghdr msghdr = {
.msg_iov = &iovec,
.msg_iovlen = 1,
.msg_control = &control,
.msg_controllen = sizeof(control),
};
- struct ucred *ucred;
+ struct cmsghdr *cmsg;
+ struct ucred *ucred = NULL;
+ bool found = false;
Unit *u1, *u2, *u3;
+ int *fd_array = NULL;
+ unsigned n_fds = 0;
- n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT);
- if (n <= 0) {
- if (n == 0)
- return -EIO;
-
+ n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);
+ if (n < 0) {
if (errno == EAGAIN || errno == EINTR)
break;
return -errno;
}
- if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
- control.cmsghdr.cmsg_level != SOL_SOCKET ||
- control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
- control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
- log_warning("Received notify message without credentials. Ignoring.");
+ for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
+ if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
+
+ fd_array = (int*) CMSG_DATA(cmsg);
+ n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);
+
+ } else if (cmsg->cmsg_level == SOL_SOCKET &&
+ cmsg->cmsg_type == SCM_CREDENTIALS &&
+ cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) {
+
+ ucred = (struct ucred*) CMSG_DATA(cmsg);
+ }
+ }
+
+ if (n_fds > 0) {
+ assert(fd_array);
+
+ r = fdset_new_array(&fds, fd_array, n_fds);
+ if (r < 0) {
+ close_many(fd_array, n_fds);
+ return log_oom();
+ }
+ }
+
+ if (!ucred || ucred->pid <= 0) {
+ log_warning("Received notify message without valid credentials. Ignoring.");
continue;
}
- ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
+ if ((size_t) n >= sizeof(buf)) {
+ log_warning("Received notify message exceeded maximum size. Ignoring.");
+ continue;
+ }
- assert((size_t) n < sizeof(buf));
buf[n] = 0;
/* Notify every unit that might be interested, but try
* to avoid notifying the same one multiple times. */
u1 = manager_get_unit_by_pid(m, ucred->pid);
if (u1) {
- manager_invoke_notify_message(m, u1, ucred->pid, buf, n);
+ manager_invoke_notify_message(m, u1, ucred->pid, buf, n, fds);
found = true;
}
u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid));
if (u2 && u2 != u1) {
- manager_invoke_notify_message(m, u2, ucred->pid, buf, n);
+ manager_invoke_notify_message(m, u2, ucred->pid, buf, n, fds);
found = true;
}
u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid));
if (u3 && u3 != u2 && u3 != u1) {
- manager_invoke_notify_message(m, u3, ucred->pid, buf, n);
+ manager_invoke_notify_message(m, u3, ucred->pid, buf, n, fds);
found = true;
}
if (!found)
log_warning("Cannot find unit for notify message of PID "PID_FMT".", ucred->pid);
+
+ if (fdset_size(fds) > 0)
+ log_warning("Got auxiliary fds with notification message, closing all.");
}
return 0;
assert(u);
assert(si);
- log_debug_unit(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
+ log_unit_debug(u->id, "Child "PID_FMT" belongs to %s", si->si_pid, u->id);
unit_unwatch_pid(u, si->si_pid);
UNIT_VTABLE(u)->sigchld_event(u, si->si_pid, si->si_code, si->si_status);
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
- log_debug_unit(name, "Activating special unit %s", name);
+ log_unit_debug(name, "Activating special unit %s", name);
r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL);
if (r < 0)
- log_error_unit(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
+ log_unit_error(name, "Failed to enqueue %s job: %s", name, bus_error_message(&error, r));
return r;
}
case SIGINT:
if (m->running_as == SYSTEMD_SYSTEM) {
- manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+
+ /* If the user presses C-A-D more than
+ * 7 times within 2s, we reboot
+ * immediately. */
+
+ if (ratelimit_test(&m->ctrl_alt_del_ratelimit))
+ manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+ else {
+ log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
+ status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
+ m->exit_code = MANAGER_REBOOT;
+ }
+
break;
}
assert(m->time_change_fd == fd);
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
- "MESSAGE=Time has been changed",
+ LOG_MESSAGE_ID(SD_MESSAGE_TIME_CHANGE),
+ LOG_MESSAGE("Time has been changed"),
NULL);
/* Restart the watch */
wait_usec = USEC_INFINITY;
r = sd_event_run(m->event, wait_usec);
- if (r < 0) {
- log_error("Failed to run event loop: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to run event loop: %m");
}
return m->exit_code;
#ifdef HAVE_AUDIT
_cleanup_free_ char *p = NULL;
+ const char *msg;
int audit_fd;
audit_fd = get_audit_fd();
p = unit_name_to_prefix_and_instance(u->id);
if (!p) {
- log_error_unit(u->id,
- "Failed to allocate unit name for audit message: %s", strerror(ENOMEM));
+ log_oom();
return;
}
- if (audit_log_user_comm_message(audit_fd, type, "", p, NULL, NULL, NULL, success) < 0) {
- if (errno == EPERM) {
+ msg = strappenda("unit=", p);
+
+ if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
+ if (errno == EPERM)
/* We aren't allowed to send audit messages?
* Then let's not retry again. */
close_audit_fd();
- } else
- log_warning("Failed to send audit message: %m");
+ else
+ log_warning_errno(errno, "Failed to send audit message: %m");
}
#endif
* message then wait for plymouth */
fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
if (fd < 0) {
- log_error("socket() failed: %m");
+ log_error_errno(errno, "socket() failed: %m");
return;
}
if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
- log_error("connect() failed: %m");
+ log_error_errno(errno, "connect() failed: %m");
return;
}
errno = 0;
if (write(fd, message, n + 1) != n + 1)
if (!IN_SET(errno, EPIPE, EAGAIN, ENOENT, ECONNREFUSED, ECONNRESET, ECONNABORTED))
- log_error("Failed to write Plymouth message: %m");
+ log_error_errno(errno, "Failed to write Plymouth message: %m");
}
void manager_dispatch_bus_name_owner_changed(
m->n_reloading ++;
- fprintf(f, "current-job-id=%i\n", m->current_job_id);
+ fprintf(f, "current-job-id=%"PRIu32"\n", m->current_job_id);
fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr));
fprintf(f, "n-installed-jobs=%u\n", m->n_installed_jobs);
fprintf(f, "n-failed-jobs=%u\n", m->n_failed_jobs);
m->kdbus_fd = fdset_remove(fds, fd);
}
- } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) == 0)
- log_debug("Unknown serialization item '%s'", l);
+ } else {
+ int k;
+
+ k = bus_track_deserialize_item(&m->deserialized_subscribed, l);
+ if (k < 0)
+ log_debug_errno(k, "Failed to deserialize bus tracker object: %m");
+ else if (k == 0)
+ log_debug("Unknown serialization item '%s'", l);
+ }
}
for (;;) {
lookup_paths_free(&m->lookup_paths);
/* Find new unit paths */
- manager_run_generators(m);
+ q = manager_run_generators(m);
+ if (q < 0 && r >= 0)
+ r = q;
q = lookup_paths_init(
&m->lookup_paths, m->running_as, true,
m->generator_unit_path,
m->generator_unit_path_early,
m->generator_unit_path_late);
- if (q < 0)
+ if (q < 0 && r >= 0)
r = q;
manager_build_unit_path_cache(m);
/* First, enumerate what we can from all config files */
q = manager_enumerate(m);
- if (q < 0)
+ if (q < 0 && r >= 0)
r = q;
/* Second, deserialize our stored data */
q = manager_deserialize(m, f, fds);
- if (q < 0)
+ if (q < 0 && r >= 0)
r = q;
fclose(f);
/* Re-register notify_fd as event source */
q = manager_setup_notify(m);
- if (q < 0)
+ if (q < 0 && r >= 0)
r = q;
/* Third, fire things up! */
q = manager_coldplug(m);
- if (q < 0)
+ if (q < 0 && r >= 0)
r = q;
assert(m->n_reloading > 0);
return unit_inactive_or_pending(u);
}
-void manager_check_finished(Manager *m) {
+static void manager_notify_finished(Manager *m) {
char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
usec_t firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec;
- Unit *u = NULL;
- Iterator i;
-
- assert(m);
-
- if (m->n_running_jobs == 0)
- m->jobs_in_progress_event_source = sd_event_source_unref(m->jobs_in_progress_event_source);
-
- if (hashmap_size(m->jobs) > 0) {
-
- if (m->jobs_in_progress_event_source)
- sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
-
- return;
- }
-
- manager_flip_auto_status(m, false);
-
- /* Notify Type=idle units that we are done now */
- m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
- manager_close_idle_pipe(m);
-
- /* Turn off confirm spawn now */
- m->confirm_spawn = false;
-
- /* This is no longer the first boot */
- manager_set_first_boot(m, false);
- if (dual_timestamp_is_set(&m->finish_timestamp))
+ if (m->test_run)
return;
- dual_timestamp_get(&m->finish_timestamp);
-
- m->start_timeout_event_source = sd_event_source_unref(m->start_timeout_event_source);
-
if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) {
/* Note that m->kernel_usec.monotonic is always at 0,
initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic;
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
+ LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
"KERNEL_USEC="USEC_FMT, kernel_usec,
"INITRD_USEC="USEC_FMT, initrd_usec,
"USERSPACE_USEC="USEC_FMT, userspace_usec,
- "MESSAGE=Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
- format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
- format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
- format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
- format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
+ LOG_MESSAGE("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
+ format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
+ format_timespan(initrd, sizeof(initrd), initrd_usec, USEC_PER_MSEC),
+ format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
+ format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
NULL);
} else {
kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic;
initrd_usec = 0;
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
+ LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
"KERNEL_USEC="USEC_FMT, kernel_usec,
"USERSPACE_USEC="USEC_FMT, userspace_usec,
- "MESSAGE=Startup finished in %s (kernel) + %s (userspace) = %s.",
- format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
- format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
- format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
+ LOG_MESSAGE("Startup finished in %s (kernel) + %s (userspace) = %s.",
+ format_timespan(kernel, sizeof(kernel), kernel_usec, USEC_PER_MSEC),
+ format_timespan(userspace, sizeof(userspace), userspace_usec, USEC_PER_MSEC),
+ format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
NULL);
}
} else {
total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic;
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
+ LOG_MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED),
"USERSPACE_USEC="USEC_FMT, userspace_usec,
- "MESSAGE=Startup finished in %s.",
- format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC),
+ LOG_MESSAGE("Startup finished in %s.",
+ format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)),
NULL);
}
- SET_FOREACH(u, m->startup_units, i)
- if (u->cgroup_path)
- cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
-
bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec);
sd_notifyf(false,
format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC));
}
+void manager_check_finished(Manager *m) {
+ Unit *u = NULL;
+ Iterator i;
+
+ assert(m);
+
+ if (hashmap_size(m->jobs) > 0) {
+
+ if (m->jobs_in_progress_event_source)
+ sd_event_source_set_time(m->jobs_in_progress_event_source, now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC);
+
+ return;
+ }
+
+ manager_flip_auto_status(m, false);
+
+ /* Notify Type=idle units that we are done now */
+ m->idle_pipe_event_source = sd_event_source_unref(m->idle_pipe_event_source);
+ manager_close_idle_pipe(m);
+
+ /* Turn off confirm spawn now */
+ m->confirm_spawn = false;
+
+ /* No need to update ask password status when we're going non-interactive */
+ manager_close_ask_password(m);
+
+ /* This is no longer the first boot */
+ manager_set_first_boot(m, false);
+
+ if (dual_timestamp_is_set(&m->finish_timestamp))
+ return;
+
+ dual_timestamp_get(&m->finish_timestamp);
+
+ manager_notify_finished(m);
+
+ SET_FOREACH(u, m->startup_units, i)
+ if (u->cgroup_path)
+ cgroup_context_apply(unit_get_cgroup_context(u), unit_get_cgroup_mask(u), u->cgroup_path, manager_state(m));
+}
+
static int create_generator_dir(Manager *m, char **generator, const char *name) {
char *p;
int r;
r = mkdir_p_label(p, 0755);
if (r < 0) {
- log_error("Failed to create generator directory %s: %s",
- p, strerror(-r));
+ log_error_errno(r, "Failed to create generator directory %s: %m", p);
free(p);
return r;
}
r = mkdir_p_label(p, 0755);
if (r < 0) {
- log_error("Failed to create generator directory %s: %s",
- p, strerror(-r));
+ log_error_errno(r, "Failed to create generator directory %s: %m", p);
free(p);
return r;
}
return log_oom();
if (!mkdtemp(p)) {
- log_error("Failed to create generator directory %s: %m",
+ log_error_errno(errno, "Failed to create generator directory %s: %m",
p);
free(p);
return -errno;
return;
}
-void manager_run_generators(Manager *m) {
- _cleanup_closedir_ DIR *d = NULL;
- const char *generator_path;
+static int manager_run_generators(Manager *m) {
+ _cleanup_free_ char **paths = NULL;
const char *argv[5];
+ char **path;
int r;
assert(m);
if (m->test_run)
- return;
+ return 0;
- generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
- d = opendir(generator_path);
- if (!d) {
- if (errno == ENOENT)
- return;
+ paths = generator_paths(m->running_as);
+ if (!paths)
+ return log_oom();
- log_error("Failed to enumerate generator directory %s: %m",
- generator_path);
- return;
+ /* Optimize by skipping the whole process by not creating output directories
+ * if no generators are found. */
+ STRV_FOREACH(path, paths) {
+ r = access(*path, F_OK);
+ if (r == 0)
+ goto found;
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Failed to open generator directory %s: %m", *path);
}
+ return 0;
+ found:
r = create_generator_dir(m, &m->generator_unit_path, "generator");
if (r < 0)
goto finish;
argv[4] = NULL;
RUN_WITH_UMASK(0022)
- execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv);
+ execute_directories((const char* const*) paths, DEFAULT_TIMEOUT_USEC, (char**) argv);
finish:
trim_generator_dir(m, &m->generator_unit_path);
trim_generator_dir(m, &m->generator_unit_path_early);
trim_generator_dir(m, &m->generator_unit_path_late);
+ return r;
}
static void remove_generator_dir(Manager *m, char **generator) {
*generator = NULL;
}
-void manager_undo_generators(Manager *m) {
+static void manager_undo_generators(Manager *m) {
assert(m);
remove_generator_dir(m, &m->generator_unit_path);
if (!strv_isempty(plus)) {
b = strv_env_merge(2, l, plus);
- if (!b)
+ if (!b) {
+ strv_free(a);
return -ENOMEM;
+ }
l = b;
}
unlink("/run/systemd/show-status");
}
-static bool manager_get_show_status(Manager *m) {
+static bool manager_get_show_status(Manager *m, StatusType type) {
assert(m);
if (m->running_as != SYSTEMD_SYSTEM)
if (m->no_console_output)
return false;
- if (!IN_SET(manager_state(m), MANAGER_STARTING, MANAGER_STOPPING))
+ if (!IN_SET(manager_state(m), MANAGER_INITIALIZING, MANAGER_STARTING, MANAGER_STOPPING))
+ return false;
+
+ /* If we cannot find out the status properly, just proceed. */
+ if (type != STATUS_TYPE_EMERGENCY && manager_check_ask_password(m) > 0)
return false;
if (m->show_status > 0)
/* If Plymouth is running make sure we show the status, so
* that there's something nice to see when people press Esc */
-
return plymouth_running();
}
unlink("/run/systemd/first-boot");
}
-void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) {
+void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) {
va_list ap;
- if (!manager_get_show_status(m))
+ /* If m is NULL, assume we're after shutdown and let the messages through. */
+
+ if (m && !manager_get_show_status(m, type))
return;
/* XXX We should totally drop the check for ephemeral here
* and thus effectively make 'Type=idle' pointless. */
- if (ephemeral && m->n_on_console > 0)
+ if (type == STATUS_TYPE_EPHEMERAL && m && m->n_on_console > 0)
return;
va_start(ap, format);
- status_vprintf(status, true, ephemeral, format, ap);
+ status_vprintf(status, true, type == STATUS_TYPE_EPHEMERAL, format, ap);
va_end(ap);
}
assert(m);
/* Did we ever finish booting? If not then we are still starting up */
- if (!dual_timestamp_is_set(&m->finish_timestamp))
+ if (!dual_timestamp_is_set(&m->finish_timestamp)) {
+
+ u = manager_get_unit(m, SPECIAL_BASIC_TARGET);
+ if (!u || !UNIT_IS_ACTIVE_OR_RELOADING(unit_active_state(u)))
+ return MANAGER_INITIALIZING;
+
return MANAGER_STARTING;
+ }
/* Is the special shutdown target queued? If so, we are in shutdown state */
u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
}
static const char *const manager_state_table[_MANAGER_STATE_MAX] = {
+ [MANAGER_INITIALIZING] = "initializing",
[MANAGER_STARTING] = "starting",
[MANAGER_RUNNING] = "running",
[MANAGER_DEGRADED] = "degraded",
~ianmdlvl / elogind.git / blobdiff