X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmanager.c;h=ef1e3eac5fba78e20d3f5127b3bb4c3098689e5d;hp=9172a244aef2f358398779324b710a3281ac18e4;hb=0aa281df2c5f56623abddf25d6bcdb82b641aeb2;hpb=8f8f05a919355095518911135c3d630f4620a9b0 diff --git a/src/core/manager.c b/src/core/manager.c index 9172a244a..ef1e3eac5 100644 --- a/src/core/manager.c +++ b/src/core/manager.c @@ -25,6 +25,8 @@ #include #include #include +#include +#include #include #include #include @@ -75,6 +77,7 @@ #include "dbus-job.h" #include "dbus-manager.h" #include "bus-kernel.h" +#include "time-util.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) @@ -84,11 +87,6 @@ #define JOBS_IN_PROGRESS_PERIOD_USEC (USEC_PER_SEC / 3) #define JOBS_IN_PROGRESS_PERIOD_DIVISOR 3 -/* Where clients shall send notification messages to */ -#define NOTIFY_SOCKET "@/org/freedesktop/systemd1/notify" - -#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); @@ -105,7 +103,12 @@ static int manager_watch_jobs_in_progress(Manager *m) { return 0; next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; - return sd_event_add_monotonic(m->event, &m->jobs_in_progress_event_source, next, 0, manager_dispatch_jobs_in_progress, m); + return sd_event_add_time( + m->event, + &m->jobs_in_progress_event_source, + CLOCK_MONOTONIC, + next, 0, + manager_dispatch_jobs_in_progress, m); } #define CYLON_BUFFER_EXTRA (2*(sizeof(ANSI_RED_ON)-1) + sizeof(ANSI_HIGHLIGHT_RED_ON)-1 + 2*(sizeof(ANSI_HIGHLIGHT_OFF)-1)) @@ -140,6 +143,8 @@ static void draw_cylon(char buffer[], size_t buflen, unsigned width, unsigned po } void manager_flip_auto_status(Manager *m, bool enable) { + assert(m); + if (enable) { if (m->show_status == SHOW_STATUS_AUTO) manager_set_show_status(m, SHOW_STATUS_TEMPORARY); @@ -189,7 +194,7 @@ static void manager_print_jobs_in_progress(Manager *m) { 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), @@ -198,6 +203,96 @@ static void manager_print_jobs_in_progress(Manager *m) { } +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("Failed to list /run/systemd/ask-password: %s", strerror(m->have_ask_password)); + + 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) { + log_error("inotify_init1() failed: %m"); + return -errno; + } + + 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"); + 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("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) { int r; @@ -221,8 +316,8 @@ static int manager_watch_idle_pipe(Manager *m) { static void manager_close_idle_pipe(Manager *m) { assert(m); - close_pipe(m->idle_pipe); - close_pipe(m->idle_pipe + 2); + safe_close_pair(m->idle_pipe); + safe_close_pair(m->idle_pipe + 2); } static int manager_setup_time_change(Manager *m) { @@ -237,6 +332,9 @@ static int manager_setup_time_change(Manager *m) { assert(m); assert_cc(sizeof(time_t) == sizeof(TIME_T_MAX)); + if (m->test_run) + return 0; + /* Uses TFD_TIMER_CANCEL_ON_SET to get notifications whenever * CLOCK_REALTIME makes a jump relative to CLOCK_MONOTONIC */ @@ -248,8 +346,7 @@ static int manager_setup_time_change(Manager *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"); - close_nointr_nofail(m->time_change_fd); - m->time_change_fd = -1; + m->time_change_fd = safe_close(m->time_change_fd); return 0; } @@ -299,11 +396,17 @@ static int manager_setup_signals(Manager *m) { assert(m); - /* We are not interested in SIGSTOP and friends. */ + if (m->test_run) + return 0; + 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 */ @@ -313,6 +416,7 @@ static int manager_setup_signals(Manager *m) { 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 */ @@ -320,19 +424,40 @@ static int manager_setup_signals(Manager *m) { 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 */ + 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); @@ -345,7 +470,7 @@ static int manager_setup_signals(Manager *m) { 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); @@ -406,7 +531,7 @@ static int manager_default_environment(Manager *m) { return 0; } -int manager_new(SystemdRunningAs running_as, Manager **_m) { +int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) { Manager *m; int r; @@ -419,35 +544,49 @@ int manager_new(SystemdRunningAs running_as, Manager **_m) { return -ENOMEM; #ifdef ENABLE_EFI - if (detect_container(NULL) <= 0) + if (running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) boot_timestamps(&m->userspace_timestamp, &m->firmware_timestamp, &m->loader_timestamp); #endif m->running_as = running_as; m->exit_code = _MANAGER_EXIT_CODE_INVALID; + m->default_timer_accuracy_usec = USEC_PER_MINUTE; 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->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; + 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, NULL); + if (r < 0) + goto fail; + + r = hashmap_ensure_allocated(&m->cgroup_unit, &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->watch_bus, &string_hash_ops); if (r < 0) goto fail; - r = hashmap_ensure_allocated(&m->cgroup_unit, string_hash_func, string_compare_func); + r = set_ensure_allocated(&m->startup_units, NULL); if (r < 0) goto fail; - r = hashmap_ensure_allocated(&m->watch_bus, string_hash_func, string_compare_func); + r = set_ensure_allocated(&m->failed_units, NULL); if (r < 0) goto fail; @@ -500,16 +639,17 @@ fail: } static int manager_setup_notify(Manager *m) { - union { - struct sockaddr sa; - struct sockaddr_un un; - } sa = { - .sa.sa_family = AF_UNIX, - }; - int one = 1, r; + int r; + + if (m->test_run) + return 0; if (m->notify_fd < 0) { _cleanup_close_ int fd = -1; + union sockaddr_union sa = { + .sa.sa_family = AF_UNIX, + }; + static const int one = 1; /* First free all secondary fields */ free(m->notify_socket); @@ -522,16 +662,41 @@ static int manager_setup_notify(Manager *m) { return -errno; } - if (getpid() != 1 || detect_container(NULL) > 0) - snprintf(sa.un.sun_path, sizeof(sa.un.sun_path), NOTIFY_SOCKET "/%" PRIx64, random_u64()); - else - strncpy(sa.un.sun_path, NOTIFY_SOCKET, sizeof(sa.un.sun_path)); - sa.un.sun_path[0] = 0; + if (m->running_as == SYSTEMD_SYSTEM) + m->notify_socket = strdup("/run/systemd/notify"); + else { + const char *e; + + e = getenv("XDG_RUNTIME_DIR"); + if (!e) { + log_error("XDG_RUNTIME_DIR is not set: %m"); + return -EINVAL; + } - r = bind(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); + m->notify_socket = strappend(e, "/systemd/notify"); + } + if (!m->notify_socket) + return log_oom(); + + 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() failed: %m"); - return -errno; + log_error("bind(%s) failed: %m", sa.un.sun_path); + if (errno == EADDRINUSE) { + log_notice("Removing %s socket and trying again.", m->notify_socket); + r = unlink(m->notify_socket); + if (r < 0) { + log_error("Failed to remove %s: %m", m->notify_socket); + return -EADDRINUSE; + } + + 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; + } + } else + return -errno; } r = setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); @@ -540,11 +705,6 @@ static int manager_setup_notify(Manager *m) { return -errno; } - sa.un.sun_path[0] = '@'; - m->notify_socket = strdup(sa.un.sun_path); - if (!m->notify_socket) - return log_oom(); - m->notify_fd = fd; fd = -1; @@ -573,12 +733,10 @@ static int manager_setup_notify(Manager *m) { static int manager_setup_kdbus(Manager *m) { #ifdef ENABLE_KDBUS _cleanup_free_ char *p = NULL; -#endif -#ifdef ENABLE_KDBUS assert(m); - if (m->kdbus_fd >= 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); @@ -605,6 +763,9 @@ static int manager_connect_bus(Manager *m, bool reexecuting) { assert(m); + if (m->test_run) + return 0; + try_bus_connect = m->kdbus_fd >= 0 || reexecuting || @@ -778,6 +939,9 @@ void manager_free(Manager *m) { hashmap_free(m->watch_pids2); hashmap_free(m->watch_bus); + set_free(m->startup_units); + set_free(m->failed_units); + sd_event_source_unref(m->signal_event_source); sd_event_source_unref(m->notify_event_source); sd_event_source_unref(m->time_change_event_source); @@ -785,14 +949,12 @@ void manager_free(Manager *m) { sd_event_source_unref(m->idle_pipe_event_source); sd_event_source_unref(m->run_queue_event_source); - if (m->signal_fd >= 0) - close_nointr_nofail(m->signal_fd); - if (m->notify_fd >= 0) - close_nointr_nofail(m->notify_fd); - if (m->time_change_fd >= 0) - close_nointr_nofail(m->time_change_fd); - if (m->kdbus_fd >= 0) - close_nointr_nofail(m->kdbus_fd); + safe_close(m->signal_fd); + safe_close(m->notify_fd); + safe_close(m->time_change_fd); + safe_close(m->kdbus_fd); + + manager_close_ask_password(m); manager_close_idle_pipe(m); @@ -810,7 +972,7 @@ void manager_free(Manager *m) { free(m->switch_root); free(m->switch_root_init); - for (i = 0; i < RLIMIT_NLIMITS; i++) + for (i = 0; i < _RLIMIT_MAX; i++) free(m->rlimit[i]); assert(hashmap_isempty(m->units_requiring_mounts_for)); @@ -864,14 +1026,14 @@ static int manager_coldplug(Manager *m) { 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; @@ -954,6 +1116,7 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { r = lookup_paths_init( &m->lookup_paths, m->running_as, true, + NULL, m->generator_unit_path, m->generator_unit_path_early, m->generator_unit_path_late); @@ -974,11 +1137,8 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { dual_timestamp_get(&m->units_load_finish_timestamp); /* Second, deserialize if there is something to deserialize */ - if (serialization) { - q = manager_deserialize(m, serialization, fds); - if (q < 0) - r = q; - } + if (serialization) + r = manager_deserialize(m, serialization, fds); /* Any fds left? Find some unit which wants them. This is * useful to allow container managers to pass some file @@ -986,13 +1146,15 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { * socket-based activation of entire containers. */ if (fdset_size(fds) > 0) { q = manager_distribute_fds(m, fds); - if (q < 0) + if (q < 0 && r == 0) r = q; } /* We might have deserialized the notify fd, but if we didn't * then let's create the bus now */ - manager_setup_notify(m); + q = manager_setup_notify(m); + if (q < 0 && r == 0) + r = q; /* We might have deserialized the kdbus control fd, but if we * didn't, then let's create the bus now. */ @@ -1002,7 +1164,7 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) { /* Third, fire things up! */ q = manager_coldplug(m); - if (q < 0) + if (q < 0 && r == 0) r = q; if (serialization) { @@ -1027,15 +1189,11 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove 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, "Trying to enqueue job %s/%s/%s", unit->id, @@ -1371,7 +1529,7 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t .msg_controllen = sizeof(control), }; struct ucred *ucred; - Unit *u; + Unit *u1, *u2, *u3; n = recvmsg(m->notify_fd, &msghdr, MSG_DONTWAIT); if (n <= 0) { @@ -1397,21 +1555,23 @@ static int manager_dispatch_notify_fd(sd_event_source *source, int fd, uint32_t assert((size_t) n < sizeof(buf)); buf[n] = 0; - u = manager_get_unit_by_pid(m, ucred->pid); - if (u) { - manager_invoke_notify_message(m, u, ucred->pid, buf, n); + /* 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); found = true; } - u = hashmap_get(m->watch_pids1, LONG_TO_PTR(ucred->pid)); - if (u) { - manager_invoke_notify_message(m, u, ucred->pid, buf, n); + 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); found = true; } - u = hashmap_get(m->watch_pids2, LONG_TO_PTR(ucred->pid)); - if (u) { - manager_invoke_notify_message(m, u, ucred->pid, buf, n); + 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); found = true; } @@ -1458,7 +1618,7 @@ static int manager_dispatch_sigchld(Manager *m) { if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { _cleanup_free_ char *name = NULL; - Unit *u; + Unit *u1, *u2, *u3; get_process_comm(si.si_pid, &name); @@ -1472,15 +1632,15 @@ static int manager_dispatch_sigchld(Manager *m) { /* And now figure out the unit this belongs * to, it might be multiple... */ - u = manager_get_unit_by_pid(m, si.si_pid); - if (u) - invoke_sigchld_event(m, u, &si); - u = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); - if (u) - invoke_sigchld_event(m, u, &si); - u = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); - if (u) - invoke_sigchld_event(m, u, &si); + u1 = manager_get_unit_by_pid(m, si.si_pid); + if (u1) + invoke_sigchld_event(m, u1, &si); + u2 = hashmap_get(m->watch_pids1, LONG_TO_PTR(si.si_pid)); + if (u2 && u2 != u1) + invoke_sigchld_event(m, u2, &si); + u3 = hashmap_get(m->watch_pids2, LONG_TO_PTR(si.si_pid)); + if (u3 && u3 != u2 && u3 != u1) + invoke_sigchld_event(m, u3, &si); } /* And now, we actually reap the zombie. */ @@ -1621,6 +1781,11 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t break; } + if (fflush(f)) { + log_warning("Failed to flush status stream"); + break; + } + log_dump(LOG_INFO, dump); break; } @@ -1696,6 +1861,7 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t break; case 26: + case 29: /* compatibility: used to be mapped to LOG_TARGET_SYSLOG_OR_KMSG */ log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); log_notice("Setting log target to journal-or-kmsg."); break; @@ -1710,11 +1876,6 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t log_notice("Setting log target to kmsg."); break; - case 29: - log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); - log_notice("Setting log target to syslog-or-kmsg."); - break; - default: log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); } @@ -1743,9 +1904,7 @@ static int manager_dispatch_time_change_fd(sd_event_source *source, int fd, uint /* Restart the watch */ m->time_change_event_source = sd_event_source_unref(m->time_change_event_source); - - close_nointr_nofail(m->time_change_fd); - m->time_change_fd = -1; + m->time_change_fd = safe_close(m->time_change_fd); manager_setup_time_change(m); @@ -1794,7 +1953,7 @@ int manager_loop(Manager *m) { RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); assert(m); - m->exit_code = MANAGER_RUNNING; + m->exit_code = MANAGER_OK; /* Release the path cache */ set_free_free(m->unit_path_cache); @@ -1808,7 +1967,7 @@ int manager_loop(Manager *m) { if (r < 0) return r; - while (m->exit_code == MANAGER_RUNNING) { + while (m->exit_code == MANAGER_OK) { usec_t wait_usec; if (m->runtime_watchdog > 0 && m->running_as == SYSTEMD_SYSTEM) @@ -1842,7 +2001,7 @@ int manager_loop(Manager *m) { if (wait_usec <= 0) wait_usec = 1; } else - wait_usec = (usec_t) -1; + wait_usec = USEC_INFINITY; r = sd_event_run(m->event, wait_usec); if (r < 0) { @@ -1907,6 +2066,7 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { #ifdef HAVE_AUDIT _cleanup_free_ char *p = NULL; + const char *msg; int audit_fd; audit_fd = get_audit_fd(); @@ -1926,17 +2086,18 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { 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 + else log_warning("Failed to send audit message: %m"); } #endif @@ -1944,10 +2105,7 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { } void manager_send_unit_plymouth(Manager *m, Unit *u) { - union sockaddr_union sa = { - .un.sun_family = AF_UNIX, - .un.sun_path = "\0/org/freedesktop/plymouthd", - }; + union sockaddr_union sa = PLYMOUTH_SOCKET; int n = 0; _cleanup_free_ char *message = NULL; @@ -2029,7 +2187,7 @@ int manager_open_serialization(Manager *m, FILE **_f) { f = fdopen(fd, "w+"); if (!f) { - close_nointr_nofail(fd); + safe_close(fd); return -errno; } @@ -2113,9 +2271,6 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds, bool switching_root) { if (u->id != t) continue; - if (!unit_can_serialize(u)) - continue; - /* Start marker */ fputs(u->id, f); fputc('\n', f); @@ -2172,7 +2327,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t id; if (safe_atou32(l+15, &id) < 0) - log_debug("Failed to parse current job id value %s", l+15); + log_warning("Failed to parse current job id value %s", l+15); else m->current_job_id = MAX(m->current_job_id, id); @@ -2180,7 +2335,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t n; if (safe_atou32(l+17, &n) < 0) - log_debug("Failed to parse installed jobs counter %s", l+17); + log_warning("Failed to parse installed jobs counter %s", l+17); else m->n_installed_jobs += n; @@ -2188,7 +2343,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { uint32_t n; if (safe_atou32(l+14, &n) < 0) - log_debug("Failed to parse failed jobs counter %s", l+14); + log_warning("Failed to parse failed jobs counter %s", l+14); else m->n_failed_jobs += n; @@ -2197,7 +2352,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { b = parse_boolean(l+10); if (b < 0) - log_debug("Failed to parse taint /usr flag %s", l+10); + log_warning("Failed to parse taint /usr flag %s", l+10); else m->taint_usr = m->taint_usr || b; @@ -2248,13 +2403,10 @@ 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_debug("Failed to parse notify fd: %s", l + 10); + log_warning("Failed to parse notify fd: %s", l + 10); else { - if (m->notify_fd >= 0) { - m->notify_event_source = sd_event_source_unref(m->notify_event_source); - close_nointr_nofail(m->notify_fd); - } - + m->notify_event_source = sd_event_source_unref(m->notify_event_source); + safe_close(m->notify_fd); m->notify_fd = fdset_remove(fds, fd); } @@ -2274,16 +2426,14 @@ 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_debug("Failed to parse kdbus fd: %s", l + 9); + log_warning("Failed to parse kdbus fd: %s", l + 9); else { - if (m->kdbus_fd >= 0) - close_nointr_nofail(m->kdbus_fd); - + safe_close(m->kdbus_fd); 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); + log_warning("Unknown serialization item '%s'", l); } for (;;) { @@ -2362,6 +2512,7 @@ int manager_reload(Manager *m) { q = lookup_paths_init( &m->lookup_paths, m->running_as, true, + NULL, m->generator_unit_path, m->generator_unit_path_early, m->generator_unit_path_late); @@ -2401,23 +2552,6 @@ int manager_reload(Manager *m) { return r; } -static bool manager_is_booting_or_shutting_down(Manager *m) { - Unit *u; - - assert(m); - - /* Is the initial job still around? */ - if (manager_get_job(m, m->default_unit_job_id)) - return true; - - /* Is there a job for the shutdown target? */ - u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); - if (u) - return !!u->job; - - return false; -} - bool manager_is_reloading_or_reexecuting(Manager *m) { assert(m); @@ -2448,37 +2582,13 @@ bool manager_unit_inactive_or_pending(Manager *m, const char *name) { 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; - 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) { - uint64_t next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_WAIT_USEC; - sd_event_source_set_time(m->jobs_in_progress_event_source, next); - } - 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; - - if (dual_timestamp_is_set(&m->finish_timestamp)) + if (m->test_run) return; - dual_timestamp_get(&m->finish_timestamp); - if (m->running_as == SYSTEMD_SYSTEM && detect_container(NULL) <= 0) { /* Note that m->kernel_usec.monotonic is always at 0, @@ -2496,53 +2606,95 @@ void manager_check_finished(Manager *m) { kernel_usec = m->initrd_timestamp.monotonic - m->kernel_timestamp.monotonic; initrd_usec = m->userspace_timestamp.monotonic - m->initrd_timestamp.monotonic; - if (!log_on_console()) - log_struct(LOG_INFO, - 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), - NULL); + log_struct(LOG_INFO, + 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), + NULL); } else { kernel_usec = m->userspace_timestamp.monotonic - m->kernel_timestamp.monotonic; initrd_usec = 0; - if (!log_on_console()) - log_struct(LOG_INFO, - 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), - NULL); - } - } else { - firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; - total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; - - if (!log_on_console()) log_struct(LOG_INFO, MESSAGE_ID(SD_MESSAGE_STARTUP_FINISHED), + "KERNEL_USEC="USEC_FMT, kernel_usec, "USERSPACE_USEC="USEC_FMT, userspace_usec, - "MESSAGE=Startup finished in %s.", + "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 { + firmware_usec = loader_usec = initrd_usec = kernel_usec = 0; + total_usec = userspace_usec = m->finish_timestamp.monotonic - m->userspace_timestamp.monotonic; + + log_struct(LOG_INFO, + 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), + NULL); } bus_manager_send_finished(m, firmware_usec, loader_usec, kernel_usec, initrd_usec, userspace_usec, total_usec); sd_notifyf(false, - "READY=1\nSTATUS=Startup finished in %s.", + "READY=1\n" + "STATUS=Startup finished in %s.", format_timespan(sum, sizeof(sum), total_usec, USEC_PER_MSEC)); } +void manager_check_finished(Manager *m) { + 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; + + /* 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; @@ -2627,6 +2779,9 @@ void manager_run_generators(Manager *m) { assert(m); + if (m->test_run) + return; + generator_path = m->running_as == SYSTEMD_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH; d = opendir(generator_path); if (!d) { @@ -2657,7 +2812,7 @@ void manager_run_generators(Manager *m) { argv[4] = NULL; RUN_WITH_UMASK(0022) - execute_directory(generator_path, d, (char**) argv); + execute_directory(generator_path, d, DEFAULT_TIMEOUT_USEC, (char**) argv); finish: trim_generator_dir(m, &m->generator_unit_path); @@ -2703,8 +2858,10 @@ int manager_environment_add(Manager *m, char **minus, char **plus) { if (!strv_isempty(plus)) { b = strv_env_merge(2, l, plus); - if (!b) + if (!b) { + strv_free(a); return -ENOMEM; + } l = b; } @@ -2728,7 +2885,7 @@ int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit) { assert(m); - for (i = 0; i < RLIMIT_NLIMITS; i++) { + for (i = 0; i < _RLIMIT_MAX; i++) { if (!default_rlimit[i]) continue; @@ -2780,7 +2937,7 @@ void manager_set_show_status(Manager *m, ShowStatus mode) { 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) @@ -2789,31 +2946,48 @@ static bool manager_get_show_status(Manager *m) { if (m->no_console_output) return false; + 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) return true; /* 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(); } -void manager_status_printf(Manager *m, bool ephemeral, const char *status, const char *format, ...) { +void manager_set_first_boot(Manager *m, bool b) { + assert(m); + + if (m->running_as != SYSTEMD_SYSTEM) + return; + + m->first_boot = b; + + if (m->first_boot) + touch("/run/systemd/first-boot"); + else + unlink("/run/systemd/first-boot"); +} + +void manager_status_printf(Manager *m, StatusType type, const char *status, const char *format, ...) { va_list ap; - if (!manager_get_show_status(m)) + if (!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) - return; - - if (!manager_is_booting_or_shutting_down(m)) + if (type == STATUS_TYPE_EPHEMERAL && 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); } @@ -2851,3 +3025,60 @@ Set *manager_get_units_requiring_mounts_for(Manager *m, const char *path) { return hashmap_get(m->units_requiring_mounts_for, streq(p, "/") ? "" : p); } + +const char *manager_get_runtime_prefix(Manager *m) { + assert(m); + + return m->running_as == SYSTEMD_SYSTEM ? + "/run" : + getenv("XDG_RUNTIME_DIR"); +} + +ManagerState manager_state(Manager *m) { + Unit *u; + + assert(m); + + /* Did we ever finish booting? If not then we are still starting up */ + 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); + if (u && u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)) + return MANAGER_STOPPING; + + /* Are the rescue or emergency targets active or queued? If so we are in maintenance state */ + u = manager_get_unit(m, SPECIAL_RESCUE_TARGET); + if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || + (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) + return MANAGER_MAINTENANCE; + + u = manager_get_unit(m, SPECIAL_EMERGENCY_TARGET); + if (u && (UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(u)) || + (u->job && IN_SET(u->job->type, JOB_START, JOB_RESTART, JOB_TRY_RESTART, JOB_RELOAD_OR_START)))) + return MANAGER_MAINTENANCE; + + /* Are there any failed units? If so, we are in degraded mode */ + if (set_size(m->failed_units) > 0) + return MANAGER_DEGRADED; + + return MANAGER_RUNNING; +} + +static const char *const manager_state_table[_MANAGER_STATE_MAX] = { + [MANAGER_INITIALIZING] = "initializing", + [MANAGER_STARTING] = "starting", + [MANAGER_RUNNING] = "running", + [MANAGER_DEGRADED] = "degraded", + [MANAGER_MAINTENANCE] = "maintenance", + [MANAGER_STOPPING] = "stopping", +}; + +DEFINE_STRING_TABLE_LOOKUP(manager_state, ManagerState);