X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmanager.c;h=d86fdd2a0125625c1e1bf3f59a4f3951806c262f;hp=f934594480f11cdb7e3dedfca7e1503d7ec67837;hb=a626df3efd908b6d868d49207905bdd5162e5609;hpb=eb56eb9b40950f1edcffdb7313f8de4f8572a6d5 diff --git a/src/core/manager.c b/src/core/manager.c index f93459448..d86fdd2a0 100644 --- a/src/core/manager.c +++ b/src/core/manager.c @@ -69,7 +69,7 @@ #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" @@ -90,6 +90,8 @@ static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint 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; @@ -162,6 +164,7 @@ static void manager_print_jobs_in_progress(Manager *m) { uint64_t x; assert(m); + assert(m->n_running_jobs > 0); manager_flip_auto_status(m, true); @@ -184,8 +187,7 @@ static void manager_print_jobs_in_progress(Manager *m) { 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) @@ -197,7 +199,6 @@ static void manager_print_jobs_in_progress(Manager *m) { job_type_to_string(j->type), unit_description(j->unit), time, limit); - } static int have_ask_password(void) { @@ -262,13 +263,11 @@ static int manager_check_ask_password(Manager *m) { 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) { - log_error("inotify_init1() failed: %m"); - return -errno; - } + 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("Failed to add watch on /run/systemd/ask-password: %m"); + log_error_errno(errno, "Failed to add watch on /run/systemd/ask-password: %m"); manager_close_ask_password(m); return -errno; } @@ -277,7 +276,7 @@ static int manager_check_ask_password(Manager *m) { m->ask_password_inotify_fd, EPOLLIN, manager_dispatch_ask_password_fd, m); if (r < 0) { - log_error("Failed to add event source for /run/systemd/ask-password: %m"); + log_error_errno(errno, "Failed to add event source for /run/systemd/ask-password: %m"); manager_close_ask_password(m); return -errno; } @@ -302,10 +301,8 @@ 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_errno(r, "Failed to watch idle pipe: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to watch idle pipe: %m"); return 0; } @@ -336,22 +333,18 @@ static int manager_setup_time_change(Manager *m) { * 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_errno(r, "Failed to create time change event source: %m"); - 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."); @@ -367,17 +360,17 @@ static int enable_special_signals(Manager *m) { * 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; @@ -448,7 +441,7 @@ static int manager_setup_signals(Manager *m) { 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 @@ -548,7 +541,7 @@ int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { 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; @@ -556,6 +549,9 @@ int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { 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; @@ -651,10 +647,8 @@ static int manager_setup_notify(Manager *m) { 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"); @@ -663,7 +657,7 @@ static int manager_setup_notify(Manager *m) { 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; } @@ -677,16 +671,12 @@ static int manager_setup_notify(Manager *m) { 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; @@ -696,18 +686,14 @@ static int manager_setup_notify(Manager *m) { 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_errno(r, "Failed to allocate notify event source: %m"); - 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_errno(r, "Failed to set priority of notify event source: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to set priority of notify event source: %m"); } return 0; @@ -722,7 +708,7 @@ static int manager_setup_kdbus(Manager *m) { if (m->test_run || m->kdbus_fd >= 0) return 0; - if (getpid() == 1) + if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) bus_kernel_fix_attach_mask(); m->kdbus_fd = bus_kernel_create_bus( @@ -964,20 +950,29 @@ Manager* manager_free(Manager *m) { } 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; } @@ -1030,14 +1025,14 @@ static void manager_build_unit_path_cache(Manager *m) { 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); @@ -1093,8 +1088,10 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { 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, @@ -1459,7 +1456,7 @@ static unsigned manager_dispatch_dbus_queue(Manager *m) { 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); @@ -1476,12 +1473,13 @@ static void manager_invoke_notify_message(Manager *m, Unit *u, pid_t pid, char * 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); @@ -1492,73 +1490,99 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t } 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; @@ -1700,7 +1724,19 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t 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 too 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; } @@ -1986,10 +2022,8 @@ int manager_loop(Manager *m) { wait_usec = USEC_INFINITY; r = sd_event_run(m->event, wait_usec); - if (r < 0) { - log_error_errno(r, "Failed to run event loop: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to run event loop: %m"); } return m->exit_code; @@ -2080,7 +2114,7 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { * Then let's not retry again. */ close_audit_fd(); else - log_warning("Failed to send audit message: %m"); + log_warning_errno(errno, "Failed to send audit message: %m"); } #endif @@ -2113,14 +2147,14 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) { * 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; } @@ -2132,7 +2166,7 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) { 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( @@ -2191,7 +2225,7 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { 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); @@ -2309,7 +2343,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t id; if (safe_atou32(l+15, &id) < 0) - log_warning("Failed to parse current job id value %s", l+15); + log_debug("Failed to parse current job id value %s", l+15); else m->current_job_id = MAX(m->current_job_id, id); @@ -2317,7 +2351,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t n; if (safe_atou32(l+17, &n) < 0) - log_warning("Failed to parse installed jobs counter %s", l+17); + log_debug("Failed to parse installed jobs counter %s", l+17); else m->n_installed_jobs += n; @@ -2325,7 +2359,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t n; if (safe_atou32(l+14, &n) < 0) - log_warning("Failed to parse failed jobs counter %s", l+14); + log_debug("Failed to parse failed jobs counter %s", l+14); else m->n_failed_jobs += n; @@ -2334,7 +2368,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { b = parse_boolean(l+10); if (b < 0) - log_warning("Failed to parse taint /usr flag %s", l+10); + log_debug("Failed to parse taint /usr flag %s", l+10); else m->taint_usr = m->taint_usr || b; @@ -2385,7 +2419,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { int fd; if (safe_atoi(l + 10, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) - log_warning("Failed to parse notify fd: %s", l + 10); + log_debug("Failed to parse notify fd: %s", l + 10); else { m->notify_event_source = sd_event_source_unref(m->notify_event_source); safe_close(m->notify_fd); @@ -2408,14 +2442,21 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { int fd; if (safe_atoi(l + 9, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) - log_warning("Failed to parse kdbus fd: %s", l + 9); + log_debug("Failed to parse kdbus fd: %s", l + 9); else { safe_close(m->kdbus_fd); m->kdbus_fd = fdset_remove(fds, fd); } - } else if (bus_track_deserialize_item(&m->deserialized_subscribed, l) < 0) - log_warning("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 (;;) { @@ -2490,7 +2531,9 @@ int manager_reload(Manager *m) { 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, @@ -2498,19 +2541,19 @@ int manager_reload(Manager *m) { 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); @@ -2518,12 +2561,12 @@ int manager_reload(Manager *m) { /* 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); @@ -2639,9 +2682,6 @@ void manager_check_finished(Manager *m) { 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) @@ -2725,7 +2765,7 @@ static int create_generator_dir(Manager *m, char **generator, const char *name) 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; @@ -2751,28 +2791,33 @@ static void trim_generator_dir(Manager *m, char **generator) { 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; @@ -2792,12 +2837,13 @@ void manager_run_generators(Manager *m) { 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) { @@ -2814,7 +2860,7 @@ 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);