X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fservice.c;h=ca71788d220a55b40349025b65298237a7bb57a7;hp=69c71508f8145285ca120e3054495557af7c34f8;hb=454f7158c6cecd18555c5e7dd556e3d544301b52;hpb=2abba39d759bacebd7461f7370bb108f48dcce92 diff --git a/src/core/service.c b/src/core/service.c index 69c71508f..ca71788d2 100644 --- a/src/core/service.c +++ b/src/core/service.c @@ -36,12 +36,15 @@ #include "unit-printf.h" #include "dbus-service.h" #include "special.h" -#include "bus-errors.h" #include "exit-status.h" #include "def.h" #include "path-util.h" #include "util.h" #include "utf8.h" +#include "env-util.h" +#include "fileio.h" +#include "bus-error.h" +#include "bus-util.h" #ifdef HAVE_SYSV_COMPAT @@ -49,8 +52,7 @@ typedef enum RunlevelType { RUNLEVEL_UP, - RUNLEVEL_DOWN, - RUNLEVEL_SYSINIT + RUNLEVEL_DOWN } RunlevelType; static const struct { @@ -65,16 +67,6 @@ static const struct { { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, -#ifdef TARGET_SUSE - /* SUSE style boot.d */ - { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, -#endif - -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) - /* Debian style rcS.d */ - { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, -#endif - /* Standard SysV runlevels for shutdown */ { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN }, { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN } @@ -83,12 +75,10 @@ static const struct { directories in this order, and we want to make sure that sysv_start_priority is known when we first load the unit. And that value we only know from S links. Hence - UP/SYSINIT must be read before DOWN */ + UP must be read before DOWN */ }; #define RUNLEVELS_UP "12345" -/* #define RUNLEVELS_DOWN "06" */ -#define RUNLEVELS_BOOT "bBsS" #endif static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { @@ -129,20 +119,23 @@ static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] = [SERVICE_AUTO_RESTART] = UNIT_ACTIVATING }; +static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata); +static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); +static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata); + +static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); + static void service_init(Unit *u) { Service *s = SERVICE(u); assert(u); assert(u->load_state == UNIT_STUB); - s->timeout_start_usec = DEFAULT_TIMEOUT_USEC; - s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC; - s->restart_usec = DEFAULT_RESTART_USEC; + s->timeout_start_usec = u->manager->default_timeout_start_usec; + s->timeout_stop_usec = u->manager->default_timeout_stop_usec; + s->restart_usec = u->manager->default_restart_usec; s->type = _SERVICE_TYPE_INVALID; - s->watchdog_watch.type = WATCH_INVALID; - - s->timer_watch.type = WATCH_INVALID; #ifdef HAVE_SYSV_COMPAT s->sysv_start_priority = -1; s->sysv_start_priority_from_rcnd = -1; @@ -152,8 +145,11 @@ static void service_init(Unit *u) { exec_context_init(&s->exec_context); kill_context_init(&s->kill_context); + cgroup_context_init(&s->cgroup_context); - RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5); + RATELIMIT_INIT(s->start_limit, + u->manager->default_start_limit_interval, + u->manager->default_start_limit_burst); s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; } @@ -182,8 +178,9 @@ static void service_unwatch_pid_file(Service *s) { if (!s->pid_file_pathspec) return; - log_debug("Stopping watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); - path_spec_unwatch(s->pid_file_pathspec, UNIT(s)); + log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s", + UNIT(s)->id, s->pid_file_pathspec->path); + path_spec_unwatch(s->pid_file_pathspec); path_spec_done(s->pid_file_pathspec); free(s->pid_file_pathspec); s->pid_file_pathspec = NULL; @@ -200,19 +197,26 @@ static int service_set_main_pid(Service *s, pid_t pid) { if (pid == getpid()) return -EINVAL; + if (s->main_pid == pid && s->main_pid_known) + return 0; + + if (s->main_pid != pid) { + service_unwatch_main_pid(s); + exec_status_start(&s->main_exec_status, pid); + } + s->main_pid = pid; s->main_pid_known = true; if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) { - log_warning("%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.", - UNIT(s)->id, (unsigned long) pid); + log_warning_unit(UNIT(s)->id, + "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.", + UNIT(s)->id, pid); s->main_pid_alien = true; } else s->main_pid_alien = false; - exec_status_start(&s->main_exec_status, pid); - return 0; } @@ -229,7 +233,7 @@ static void service_close_socket_fd(Service *s) { static void service_connection_unref(Service *s) { assert(s); - if (!UNIT_DEREF(s->accept_socket)) + if (!UNIT_ISSET(s->accept_socket)) return; socket_connection_unref(SOCKET(UNIT_DEREF(s->accept_socket))); @@ -239,39 +243,47 @@ static void service_connection_unref(Service *s) { static void service_stop_watchdog(Service *s) { assert(s); - unit_unwatch_timer(UNIT(s), &s->watchdog_watch); - s->watchdog_timestamp.realtime = 0; - s->watchdog_timestamp.monotonic = 0; + s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source); + s->watchdog_timestamp = DUAL_TIMESTAMP_NULL; } -static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart); - -static void service_handle_watchdog(Service *s) { - usec_t offset; +static void service_start_watchdog(Service *s) { int r; assert(s); - if (s->watchdog_usec == 0) + if (s->watchdog_usec <= 0) return; - offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic; - if (offset >= s->watchdog_usec) { - log_error("%s watchdog timeout!", UNIT(s)->id); - service_enter_dead(s, SERVICE_FAILURE_WATCHDOG, true); - return; + if (s->watchdog_event_source) { + r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec); + if (r < 0) { + log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r)); + return; + } + + r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT); + } else { + r = sd_event_add_monotonic(UNIT(s)->manager->event, &s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec, 0, service_dispatch_watchdog, s); + if (r < 0) { + log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r)); + return; + } + + /* Let's process everything else which might be a sign + * of living before we consider a service died. */ + r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE); } - r = unit_watch_timer(UNIT(s), s->watchdog_usec - offset, &s->watchdog_watch); if (r < 0) - log_warning("%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r)); } static void service_reset_watchdog(Service *s) { assert(s); dual_timestamp_get(&s->watchdog_timestamp); - service_handle_watchdog(s); + service_start_watchdog(s); } static void service_done(Unit *u) { @@ -290,7 +302,9 @@ static void service_done(Unit *u) { free(s->status_text); s->status_text = NULL; + cgroup_context_done(&s->cgroup_context); exec_context_done(&s->exec_context); + s->exec_runtime = exec_runtime_unref(s->exec_runtime); exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); s->control_command = NULL; s->main_command = NULL; @@ -324,33 +338,38 @@ static void service_done(Unit *u) { service_stop_watchdog(s); - unit_unwatch_timer(u, &s->timer_watch); + s->timer_event_source = sd_event_source_unref(s->timer_event_source); +} + +static int service_arm_timer(Service *s, usec_t usec) { + int r; + + assert(s); + + if (s->timer_event_source) { + r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec); + if (r < 0) + return r; + + return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); + } + + return sd_event_add_monotonic(UNIT(s)->manager->event, &s->timer_event_source, now(CLOCK_MONOTONIC) + usec, 0, service_dispatch_timer, s); } #ifdef HAVE_SYSV_COMPAT static char *sysv_translate_name(const char *name) { char *r; - if (!(r = new(char, strlen(name) + sizeof(".service")))) + r = new(char, strlen(name) + sizeof(".service")); + if (!r) return NULL; -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) if (endswith(name, ".sh")) - /* Drop Debian-style .sh suffix */ + /* Drop .sh suffix */ strcpy(stpcpy(r, name) - 3, ".service"); -#endif -#ifdef TARGET_SUSE - if (startswith(name, "boot.")) - /* Drop SuSE-style boot. prefix */ - strcpy(stpcpy(r, name + 5), ".service"); -#endif -#ifdef TARGET_FRUGALWARE - if (startswith(name, "rc.")) - /* Drop Frugalware-style rc. prefix */ - strcpy(stpcpy(r, name + 3), ".service"); -#endif else - /* Normal init scripts */ + /* Normal init script name */ strcpy(stpcpy(r, name), ".service"); return r; @@ -366,39 +385,13 @@ static int sysv_translate_facility(const char *name, const char *filename, char static const char * const table[] = { /* LSB defined facilities */ - "local_fs", SPECIAL_LOCAL_FS_TARGET, -#if defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA) -#else - /* Due to unfortunate name selection in Mandriva, - * $network is provided by network-up which is ordered - * after network which actually starts interfaces. - * To break the loop, just ignore it */ + "local_fs", NULL, "network", SPECIAL_NETWORK_TARGET, -#endif "named", SPECIAL_NSS_LOOKUP_TARGET, "portmap", SPECIAL_RPCBIND_TARGET, "remote_fs", SPECIAL_REMOTE_FS_TARGET, - "syslog", SPECIAL_SYSLOG_TARGET, + "syslog", NULL, "time", SPECIAL_TIME_SYNC_TARGET, - - /* common extensions */ - "mail-transfer-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, - "x-display-manager", SPECIAL_DISPLAY_MANAGER_SERVICE, - "null", NULL, - -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) - "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, -#endif - -#ifdef TARGET_FEDORA - "MTA", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, - "smtpdaemon", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, - "httpd", SPECIAL_HTTP_DAEMON_TARGET, -#endif - -#ifdef TARGET_SUSE - "smtp", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, -#endif }; unsigned i; @@ -418,8 +411,9 @@ static int sysv_translate_facility(const char *name, const char *filename, char if (!table[i+1]) return 0; - if (!(r = strdup(table[i+1]))) - return -ENOMEM; + r = strdup(table[i+1]); + if (!r) + return log_oom(); goto finish; } @@ -526,7 +520,7 @@ static ExecCommand *exec_command_new(const char *path, const char *arg1) { return c; } -static int sysv_exec_commands(Service *s) { +static int sysv_exec_commands(Service *s, const bool supports_reload) { ExecCommand *c; assert(s); @@ -543,14 +537,25 @@ static int sysv_exec_commands(Service *s) { return -ENOMEM; exec_command_append_list(s->exec_command+SERVICE_EXEC_STOP, c); - c = exec_command_new(UNIT(s)->source_path, "reload"); - if (!c) - return -ENOMEM; - exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); + if (supports_reload) { + c = exec_command_new(UNIT(s)->source_path, "reload"); + if (!c) + return -ENOMEM; + exec_command_append_list(s->exec_command+SERVICE_EXEC_RELOAD, c); + } return 0; } +static bool usage_contains_reload(const char *line) { + return (strcasestr(line, "{reload|") || + strcasestr(line, "{reload}") || + strcasestr(line, "{reload\"") || + strcasestr(line, "|reload|") || + strcasestr(line, "|reload}") || + strcasestr(line, "|reload\"")); +} + static int service_load_sysv_path(Service *s, const char *path) { FILE *f; Unit *u; @@ -560,10 +565,12 @@ static int service_load_sysv_path(Service *s, const char *path) { NORMAL, DESCRIPTION, LSB, - LSB_DESCRIPTION + LSB_DESCRIPTION, + USAGE_CONTINUATION } state = NORMAL; char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; struct stat st; + bool supports_reload = false; assert(s); assert(path); @@ -605,15 +612,32 @@ static int service_load_sysv_path(Service *s, const char *path) { break; r = -errno; - log_error("Failed to read configuration file '%s': %s", path, strerror(-r)); + log_error_unit(u->id, + "Failed to read configuration file '%s': %s", + path, strerror(-r)); goto finish; } line++; t = strstrip(l); - if (*t != '#') + if (*t != '#') { + /* Try to figure out whether this init script supports + * the reload operation. This heuristic looks for + * "Usage" lines which include the reload option. */ + if ( state == USAGE_CONTINUATION || + (state == NORMAL && strcasestr(t, "usage"))) { + if (usage_contains_reload(t)) { + supports_reload = true; + state = NORMAL; + } else if (t[strlen(t)-1] == '\\') + state = USAGE_CONTINUATION; + else + state = NORMAL; + } + continue; + } if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { state = LSB; @@ -643,7 +667,9 @@ static int service_load_sysv_path(Service *s, const char *path) { runlevels, &start_priority) != 2) { - log_warning("[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line); + log_warning_unit(u->id, + "[%s:%u] Failed to parse chkconfig line. Ignoring.", + path, line); continue; } @@ -651,7 +677,9 @@ static int service_load_sysv_path(Service *s, const char *path) { * symlink farms is preferred over the * data from the LSB header. */ if (start_priority < 0 || start_priority > 99) - log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); + log_warning_unit(u->id, + "[%s:%u] Start priority out of range. Ignoring.", + path, line); else s->sysv_start_priority = start_priority; @@ -700,7 +728,9 @@ static int service_load_sysv_path(Service *s, const char *path) { fn = strstrip(t+8); if (!path_is_absolute(fn)) { - log_warning("[%s:%u] PID file not absolute. Ignoring.", path, line); + log_warning_unit(u->id, + "[%s:%u] PID file not absolute. Ignoring.", + path, line); continue; } @@ -759,7 +789,7 @@ static int service_load_sysv_path(Service *s, const char *path) { goto finish; } - r = sysv_translate_facility(n, path_get_file_name(path), &m); + r = sysv_translate_facility(n, basename(path), &m); free(n); if (r < 0) @@ -769,7 +799,7 @@ static int service_load_sysv_path(Service *s, const char *path) { continue; if (unit_name_to_type(m) == UNIT_SERVICE) - r = unit_add_name(u, m); + r = unit_merge_by_name(u, m); else /* NB: SysV targets * which are provided @@ -787,7 +817,9 @@ static int service_load_sysv_path(Service *s, const char *path) { r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_WANTS, m, NULL, true); if (r < 0) - log_error("[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", path, line, m, strerror(-r)); + log_error_unit(u->id, + "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", + path, line, m, strerror(-r)); free(m); } @@ -809,10 +841,11 @@ static int service_load_sysv_path(Service *s, const char *path) { goto finish; } - r = sysv_translate_facility(n, path_get_file_name(path), &m); - + r = sysv_translate_facility(n, basename(path), &m); if (r < 0) { - log_error("[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", path, line, n, strerror(-r)); + log_error_unit(u->id, + "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", + path, line, n, strerror(-r)); free(n); continue; } @@ -825,7 +858,8 @@ static int service_load_sysv_path(Service *s, const char *path) { r = unit_add_dependency_by_name(u, startswith_no_case(t, "X-Start-Before:") ? UNIT_BEFORE : UNIT_AFTER, m, NULL, true); if (r < 0) - log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", path, line, m, strerror(-r)); + log_error_unit(u->id, "[%s:%u] Failed to add dependency on %s, ignoring: %s", + path, line, m, strerror(-r)); free(m); } @@ -906,15 +940,8 @@ static int service_load_sysv_path(Service *s, const char *path) { } } - if ((r = sysv_exec_commands(s)) < 0) + if ((r = sysv_exec_commands(s, supports_reload)) < 0) goto finish; - if (s->sysv_runlevels && - chars_intersect(RUNLEVELS_BOOT, s->sysv_runlevels) && - chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { - /* Service has both boot and "up" runlevels - configured. Kill the "up" ones. */ - delete_chars(s->sysv_runlevels, RUNLEVELS_UP); - } if (s->sysv_runlevels && !chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { /* If there a runlevels configured for this service @@ -991,22 +1018,9 @@ static int service_load_sysv_name(Service *s, const char *name) { assert(s); assert(name); - /* For SysV services we strip the boot.*, rc.* and *.sh - * prefixes/suffixes. */ -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) + /* For SysV services we strip the *.sh suffixes. */ if (endswith(name, ".sh.service")) return -ENOENT; -#endif - -#ifdef TARGET_SUSE - if (startswith(name, "boot.")) - return -ENOENT; -#endif - -#ifdef TARGET_FRUGALWARE - if (startswith(name, "rc.")) - return -ENOENT; -#endif STRV_FOREACH(p, UNIT(s)->manager->lookup_paths.sysvinit_path) { char *path; @@ -1021,49 +1035,17 @@ static int service_load_sysv_name(Service *s, const char *name) { r = service_load_sysv_path(s, path); -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { - /* Try Debian style *.sh source'able init scripts */ + /* Try *.sh source'able init scripts */ strcat(path, ".sh"); r = service_load_sysv_path(s, path); } -#endif free(path); -#ifdef TARGET_SUSE - if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { - /* Try SUSE style boot.* init scripts */ - - path = strjoin(*p, "/boot.", name, NULL); - if (!path) - return -ENOMEM; - - /* Drop .service suffix */ - path[strlen(path)-8] = 0; - r = service_load_sysv_path(s, path); - free(path); - } -#endif - -#ifdef TARGET_FRUGALWARE - if (r >= 0 && UNIT(s)->load_state == UNIT_STUB) { - /* Try Frugalware style rc.* init scripts */ - - path = strjoin(*p, "/rc.", name, NULL); - if (!path) - return -ENOMEM; - - /* Drop .service suffix */ - path[strlen(path)-8] = 0; - r = service_load_sysv_path(s, path); - free(path); - } -#endif - if (r < 0) return r; - if ((UNIT(s)->load_state != UNIT_STUB)) + if (UNIT(s)->load_state != UNIT_STUB) break; } @@ -1103,47 +1085,6 @@ static int service_load_sysv(Service *s) { } #endif -static int fsck_fix_order(Service *s) { - Unit *other; - int r; - - assert(s); - - if (s->fsck_passno <= 0) - return 0; - - /* For each pair of services where both have an fsck priority - * we order things based on it. */ - - LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) { - Service *t; - UnitDependency d; - - t = SERVICE(other); - - if (s == t) - continue; - - if (UNIT(t)->load_state != UNIT_LOADED) - continue; - - if (t->fsck_passno <= 0) - continue; - - if (t->fsck_passno < s->fsck_passno) - d = UNIT_AFTER; - else if (t->fsck_passno > s->fsck_passno) - d = UNIT_BEFORE; - else - continue; - - if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) - return r; - } - - return 0; -} - static int service_verify(Service *s) { assert(s); @@ -1151,26 +1092,31 @@ static int service_verify(Service *s) { return 0; if (!s->exec_command[SERVICE_EXEC_START]) { - log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id); return -EINVAL; } if (s->type != SERVICE_ONESHOT && s->exec_command[SERVICE_EXEC_START]->command_next) { - log_error("%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id); + return -EINVAL; + } + + if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) { + log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id); return -EINVAL; } if (s->type == SERVICE_DBUS && !s->bus_name) { - log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id); return -EINVAL; } if (s->bus_name && s->type != SERVICE_DBUS) - log_warning("%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); + log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id); - if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { - log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); + if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) { + log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id); return -EINVAL; } @@ -1186,19 +1132,15 @@ static int service_add_default_dependencies(Service *s) { * majority of services. */ /* First, pull in base system */ - if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { - - if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0) - return r; - - } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) { - - if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0) - return r; - } + r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, + SPECIAL_BASIC_TARGET, NULL, true); + if (r < 0) + return r; /* Second, activate normal shutdown */ - return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); + r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, + SPECIAL_SHUTDOWN_TARGET, NULL, true); + return r; } static void service_fix_output(Service *s) { @@ -1226,27 +1168,32 @@ static int service_load(Unit *u) { assert(s); /* Load a .service file */ - if ((r = unit_load_fragment(u)) < 0) + r = unit_load_fragment(u); + if (r < 0) return r; #ifdef HAVE_SYSV_COMPAT /* Load a classic init script as a fallback, if we couldn't find anything */ - if (u->load_state == UNIT_STUB) - if ((r = service_load_sysv(s)) < 0) + if (u->load_state == UNIT_STUB) { + r = service_load_sysv(s); + if (r < 0) return r; + } #endif /* Still nothing found? Then let's give up */ if (u->load_state == UNIT_STUB) return -ENOENT; - /* We were able to load something, then let's add in the - * dropin directories. */ - if ((r = unit_load_dropin(unit_follow_merge(u))) < 0) - return r; - /* This is a new unit? Then let's add in some extras */ if (u->load_state == UNIT_LOADED) { + + /* We were able to load something, then let's add in + * the dropin directories. */ + r = unit_load_dropin(u); + if (r < 0) + return r; + if (s->type == _SERVICE_TYPE_INVALID) s->type = s->bus_name ? SERVICE_DBUS : SERVICE_SIMPLE; @@ -1256,23 +1203,25 @@ static int service_load(Unit *u) { service_fix_output(s); - if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) + r = unit_add_exec_dependencies(u, &s->exec_context); + if (r < 0) return r; - if ((r = unit_add_default_cgroups(u)) < 0) + r = unit_add_default_slice(u); + if (r < 0) return r; #ifdef HAVE_SYSV_COMPAT - if ((r = sysv_fix_order(s)) < 0) + r = sysv_fix_order(s); + if (r < 0) return r; #endif - if ((r = fsck_fix_order(s)) < 0) - return r; - - if (s->bus_name) - if ((r = unit_watch_bus_name(u, s->bus_name)) < 0) + if (s->bus_name) { + r = unit_watch_bus_name(u, s->bus_name); + if (r < 0) return r; + } if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE) s->notify_access = NOTIFY_MAIN; @@ -1280,13 +1229,11 @@ static int service_load(Unit *u) { if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE) s->notify_access = NOTIFY_MAIN; - if (s->type == SERVICE_DBUS || s->bus_name) - if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0) - return r; - - if (UNIT(s)->default_dependencies) - if ((r = service_add_default_dependencies(s)) < 0) + if (UNIT(s)->default_dependencies) { + r = service_add_default_dependencies(s); + if (r < 0) return r; + } r = unit_exec_context_defaults(u, &s->exec_context); if (r < 0) @@ -1301,7 +1248,7 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { ServiceExecCommand c; Service *s = SERVICE(u); const char *prefix2; - char *p2; + _cleanup_free_ char *p2 = NULL; assert(s); @@ -1332,15 +1279,15 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { if (s->control_pid > 0) fprintf(f, - "%sControl PID: %lu\n", - prefix, (unsigned long) s->control_pid); + "%sControl PID: "PID_FMT"\n", + prefix, s->control_pid); if (s->main_pid > 0) fprintf(f, - "%sMain PID: %lu\n" + "%sMain PID: "PID_FMT"\n" "%sMain PID Known: %s\n" "%sMain PID Alien: %s\n", - prefix, (unsigned long) s->main_pid, + prefix, s->main_pid, prefix, yes_no(s->main_pid_known), prefix, yes_no(s->main_pid_alien)); @@ -1388,20 +1335,13 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { prefix, s->sysv_runlevels); #endif - if (s->fsck_passno > 0) - fprintf(f, - "%sFsckPassNo: %i\n", - prefix, s->fsck_passno); - if (s->status_text) fprintf(f, "%sStatus Text: %s\n", prefix, s->status_text); - - free(p2); } static int service_load_pid_file(Service *s, bool may_warn) { - char *k; + _cleanup_free_ char *k = NULL; int r; pid_t pid; @@ -1410,23 +1350,28 @@ static int service_load_pid_file(Service *s, bool may_warn) { if (!s->pid_file) return -ENOENT; - if ((r = read_one_line_file(s->pid_file, &k)) < 0) { + r = read_one_line_file(s->pid_file, &k); + if (r < 0) { if (may_warn) - log_info("PID file %s not readable (yet?) after %s.", - s->pid_file, service_state_to_string(s->state)); + log_info_unit(UNIT(s)->id, + "PID file %s not readable (yet?) after %s.", + s->pid_file, service_state_to_string(s->state)); return r; } r = parse_pid(k, &pid); - free(k); - - if (r < 0) + if (r < 0) { + if (may_warn) + log_info_unit(UNIT(s)->id, + "Failed to read PID from file %s: %s", + s->pid_file, strerror(-r)); return r; + } - if (kill(pid, 0) < 0 && errno != EPERM) { + if (!pid_is_alive(pid)) { if (may_warn) - log_info("PID %lu read from file %s does not exist.", - (unsigned long) pid, s->pid_file); + log_info_unit(UNIT(s)->id, "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file); + return -ESRCH; } @@ -1434,19 +1379,27 @@ static int service_load_pid_file(Service *s, bool may_warn) { if (pid == s->main_pid) return 0; - log_debug("Main PID changing: %lu -> %lu", - (unsigned long) s->main_pid, (unsigned long) pid); + log_debug_unit(UNIT(s)->id, + "Main PID changing: "PID_FMT" -> "PID_FMT, + s->main_pid, pid); service_unwatch_main_pid(s); s->main_pid_known = false; } else - log_debug("Main PID loaded: %lu", (unsigned long) pid); + log_debug_unit(UNIT(s)->id, + "Main PID loaded: "PID_FMT, pid); - if ((r = service_set_main_pid(s, pid)) < 0) + r = service_set_main_pid(s, pid); + if (r < 0) return r; - if ((r = unit_watch_pid(UNIT(s), pid)) < 0) + r = unit_watch_pid(UNIT(s), pid); + if (r < 0) { /* FIXME: we need to do something here */ + log_warning_unit(UNIT(s)->id, + "Failed to watch PID "PID_FMT" from service %s", + pid, UNIT(s)->id); return r; + } return 0; } @@ -1467,41 +1420,31 @@ static int service_search_main_pid(Service *s) { assert(s->main_pid <= 0); - if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0) + pid = unit_search_main_pid(UNIT(s)); + if (pid <= 0) return -ENOENT; - log_debug("Main PID guessed: %lu", (unsigned long) pid); - if ((r = service_set_main_pid(s, pid)) < 0) + log_debug_unit(UNIT(s)->id, + "Main PID guessed: "PID_FMT, pid); + r = service_set_main_pid(s, pid); + if (r < 0) return r; - if ((r = unit_watch_pid(UNIT(s), pid)) < 0) + r = unit_watch_pid(UNIT(s), pid); + if (r < 0) /* FIXME: we need to do something here */ + log_warning_unit(UNIT(s)->id, + "Failed to watch PID "PID_FMT" from service %s", + pid, UNIT(s)->id); return r; return 0; } -static void service_notify_sockets_dead(Service *s, bool failed_permanent) { - Iterator i; - Unit *u; - - assert(s); - - /* Notifies all our sockets when we die */ - - if (s->socket_fd >= 0) - return; - - SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERED_BY], i) - if (u->type == UNIT_SOCKET) - socket_notify_service_dead(SOCKET(u), failed_permanent); - - return; -} - static void service_set_state(Service *s, ServiceState state) { ServiceState old_state; const UnitActiveState *table; + assert(s); table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table; @@ -1511,82 +1454,75 @@ static void service_set_state(Service *s, ServiceState state) { service_unwatch_pid_file(s); - if (state != SERVICE_START_PRE && - state != SERVICE_START && - state != SERVICE_START_POST && - state != SERVICE_RELOAD && - state != SERVICE_STOP && - state != SERVICE_STOP_SIGTERM && - state != SERVICE_STOP_SIGKILL && - state != SERVICE_STOP_POST && - state != SERVICE_FINAL_SIGTERM && - state != SERVICE_FINAL_SIGKILL && - state != SERVICE_AUTO_RESTART) - unit_unwatch_timer(UNIT(s), &s->timer_watch); - - if (state != SERVICE_START && - state != SERVICE_START_POST && - state != SERVICE_RUNNING && - state != SERVICE_RELOAD && - state != SERVICE_STOP && - state != SERVICE_STOP_SIGTERM && - state != SERVICE_STOP_SIGKILL) { + if (!IN_SET(state, + SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, + SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, + SERVICE_AUTO_RESTART)) + s->timer_event_source = sd_event_source_unref(s->timer_event_source); + + if (!IN_SET(state, + SERVICE_START, SERVICE_START_POST, + SERVICE_RUNNING, SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { service_unwatch_main_pid(s); s->main_command = NULL; } - if (state != SERVICE_START_PRE && - state != SERVICE_START && - state != SERVICE_START_POST && - state != SERVICE_RELOAD && - state != SERVICE_STOP && - state != SERVICE_STOP_SIGTERM && - state != SERVICE_STOP_SIGKILL && - state != SERVICE_STOP_POST && - state != SERVICE_FINAL_SIGTERM && - state != SERVICE_FINAL_SIGKILL) { + if (!IN_SET(state, + SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, + SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { service_unwatch_control_pid(s); s->control_command = NULL; s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; } - if (state == SERVICE_DEAD || - state == SERVICE_STOP || - state == SERVICE_STOP_SIGTERM || - state == SERVICE_STOP_SIGKILL || - state == SERVICE_STOP_POST || - state == SERVICE_FINAL_SIGTERM || - state == SERVICE_FINAL_SIGKILL || - state == SERVICE_FAILED || - state == SERVICE_AUTO_RESTART) - service_notify_sockets_dead(s, false); - - if (state != SERVICE_START_PRE && - state != SERVICE_START && - state != SERVICE_START_POST && - state != SERVICE_RUNNING && - state != SERVICE_RELOAD && - state != SERVICE_STOP && - state != SERVICE_STOP_SIGTERM && - state != SERVICE_STOP_SIGKILL && - state != SERVICE_STOP_POST && - state != SERVICE_FINAL_SIGTERM && - state != SERVICE_FINAL_SIGKILL && + if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) + unit_unwatch_all_pids(UNIT(s)); + + if (!IN_SET(state, + SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, + SERVICE_RUNNING, SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) && !(state == SERVICE_DEAD && UNIT(s)->job)) { service_close_socket_fd(s); service_connection_unref(s); } - if (state == SERVICE_STOP) + if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) service_stop_watchdog(s); /* For the inactive states unit_notify() will trim the cgroup, * but for exit we have to do that ourselves... */ if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0) - cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true); + unit_destroy_cgroup(UNIT(s)); + + /* For remain_after_exit services, let's see if we can "release" the + * hold on the console, since unit_notify() only does that in case of + * change of state */ + if (state == SERVICE_EXITED && s->remain_after_exit && + UNIT(s)->manager->n_on_console > 0) { + ExecContext *ec = unit_get_exec_context(UNIT(s)); + if (ec && exec_context_may_touch_console(ec)) { + Manager *m = UNIT(s)->manager; + + m->n_on_console --; + if (m->n_on_console == 0) + /* unset no_console_output flag, since the console is free */ + m->no_console_output = false; + } + } if (old_state != state) - log_debug("%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state)); + log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state)); unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); s->reload_result = SERVICE_SUCCESS; @@ -1601,62 +1537,67 @@ static int service_coldplug(Unit *u) { if (s->deserialized_state != s->state) { - if (s->deserialized_state == SERVICE_START_PRE || - s->deserialized_state == SERVICE_START || - s->deserialized_state == SERVICE_START_POST || - s->deserialized_state == SERVICE_RELOAD || - s->deserialized_state == SERVICE_STOP || - s->deserialized_state == SERVICE_STOP_SIGTERM || - s->deserialized_state == SERVICE_STOP_SIGKILL || - s->deserialized_state == SERVICE_STOP_POST || - s->deserialized_state == SERVICE_FINAL_SIGTERM || - s->deserialized_state == SERVICE_FINAL_SIGKILL || - s->deserialized_state == SERVICE_AUTO_RESTART) { - if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) { - usec_t k; - - k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec; - - if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0) + if (IN_SET(s->deserialized_state, + SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, + SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { + + usec_t k; + + k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec; + + /* For the start/stop timeouts 0 means off */ + if (k > 0) { + r = service_arm_timer(s, k); + if (r < 0) return r; } } - if ((s->deserialized_state == SERVICE_START && - (s->type == SERVICE_FORKING || - s->type == SERVICE_DBUS || - s->type == SERVICE_ONESHOT || - s->type == SERVICE_NOTIFY)) || - s->deserialized_state == SERVICE_START_POST || - s->deserialized_state == SERVICE_RUNNING || - s->deserialized_state == SERVICE_RELOAD || - s->deserialized_state == SERVICE_STOP || - s->deserialized_state == SERVICE_STOP_SIGTERM || - s->deserialized_state == SERVICE_STOP_SIGKILL) - if (s->main_pid > 0) - if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0) - return r; + if (s->deserialized_state == SERVICE_AUTO_RESTART) { - if (s->deserialized_state == SERVICE_START_PRE || - s->deserialized_state == SERVICE_START || - s->deserialized_state == SERVICE_START_POST || - s->deserialized_state == SERVICE_RELOAD || - s->deserialized_state == SERVICE_STOP || - s->deserialized_state == SERVICE_STOP_SIGTERM || - s->deserialized_state == SERVICE_STOP_SIGKILL || - s->deserialized_state == SERVICE_STOP_POST || - s->deserialized_state == SERVICE_FINAL_SIGTERM || - s->deserialized_state == SERVICE_FINAL_SIGKILL) - if (s->control_pid > 0) - if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) - return r; + /* The restart timeouts 0 means immediately */ + r = service_arm_timer(s, s->restart_usec); + if (r < 0) + return r; + } + + if (pid_is_unwaited(s->main_pid) && + ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) || + IN_SET(s->deserialized_state, + SERVICE_START, SERVICE_START_POST, + SERVICE_RUNNING, SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) { + r = unit_watch_pid(UNIT(s), s->main_pid); + if (r < 0) + return r; + } + + if (pid_is_unwaited(s->control_pid) && + IN_SET(s->deserialized_state, + SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, + SERVICE_RELOAD, + SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, + SERVICE_STOP_POST, + SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) { + r = unit_watch_pid(UNIT(s), s->control_pid); + if (r < 0) + return r; + } - if (s->deserialized_state == SERVICE_START_POST || - s->deserialized_state == SERVICE_RUNNING) - service_handle_watchdog(s); + if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART)) + unit_watch_all_pids(UNIT(s)); + + if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD)) + service_start_watchdog(s); service_set_state(s, s->deserialized_state); } + return 0; } @@ -1684,7 +1625,8 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { sock = SOCKET(u); - if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0) + r = socket_collect_fds(sock, &cfds, &cn_fds); + if (r < 0) goto fail; if (!cfds) @@ -1696,7 +1638,8 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { } else { int *t; - if (!(t = new(int, rn_fds+cn_fds))) { + t = new(int, rn_fds+cn_fds); + if (!t) { free(cfds); r = -ENOMEM; goto fail; @@ -1737,14 +1680,23 @@ static int service_spawn( pid_t pid; int r; - int *fds = NULL, *fdsbuf = NULL; + int *fds = NULL; + _cleanup_free_ int *fdsbuf = NULL; unsigned n_fds = 0, n_env = 0; - char **argv = NULL, **final_env = NULL, **our_env = NULL; + _cleanup_strv_free_ char + **argv = NULL, **final_env = NULL, **our_env = NULL; + const char *path; assert(s); assert(c); assert(_pid); + unit_realize_cgroup(UNIT(s)); + + r = unit_setup_exec_runtime(UNIT(s)); + if (r < 0) + goto fail; + if (pass_fds || s->exec_context.std_input == EXEC_INPUT_SOCKET || s->exec_context.std_output == EXEC_OUTPUT_SOCKET || @@ -1754,26 +1706,27 @@ static int service_spawn( fds = &s->socket_fd; n_fds = 1; } else { - if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0) + r = service_collect_fds(s, &fdsbuf, &n_fds); + if (r < 0) goto fail; fds = fdsbuf; } } - if (timeout && s->timeout_start_usec) { - r = unit_watch_timer(UNIT(s), s->timeout_start_usec, &s->timer_watch); + if (timeout && s->timeout_start_usec > 0) { + r = service_arm_timer(s, s->timeout_start_usec); if (r < 0) goto fail; } else - unit_unwatch_timer(UNIT(s), &s->timer_watch); + s->timer_event_source = sd_event_source_unref(s->timer_event_source); - if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { - r = -ENOMEM; + r = unit_full_printf_strv(UNIT(s), c->argv, &argv); + if (r < 0) goto fail; - } - if (!(our_env = new0(char*, 4))) { + our_env = new0(char*, 4); + if (!our_env) { r = -ENOMEM; goto fail; } @@ -1785,25 +1738,29 @@ static int service_spawn( } if (s->main_pid > 0) - if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) { + if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) { r = -ENOMEM; goto fail; } - if (s->watchdog_usec > 0) - if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) { + if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM) + if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) { r = -ENOMEM; goto fail; } - if (!(final_env = strv_env_merge(2, - UNIT(s)->manager->environment, - our_env, - NULL))) { + final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); + if (!final_env) { r = -ENOMEM; goto fail; } + if (is_control && UNIT(s)->cgroup_path) { + path = strappenda(UNIT(s)->cgroup_path, "/control"); + cg_create(SYSTEMD_CGROUP_CONTROLLER, path); + } else + path = UNIT(s)->cgroup_path; + r = exec_spawn(c, argv, &s->exec_context, @@ -1813,37 +1770,28 @@ static int service_spawn( apply_chroot, apply_tty_stdin, UNIT(s)->manager->confirm_spawn, - UNIT(s)->cgroup_bondings, - UNIT(s)->cgroup_attributes, - is_control ? "control" : NULL, + UNIT(s)->manager->cgroup_supported, + path, UNIT(s)->id, + s->watchdog_usec, s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL, + s->exec_runtime, &pid); - if (r < 0) goto fail; - if ((r = unit_watch_pid(UNIT(s), pid)) < 0) + r = unit_watch_pid(UNIT(s), pid); + if (r < 0) /* FIXME: we need to do something here */ goto fail; - free(fdsbuf); - strv_free(argv); - strv_free(our_env); - strv_free(final_env); - *_pid = pid; return 0; fail: - free(fdsbuf); - strv_free(argv); - strv_free(our_env); - strv_free(final_env); - if (timeout) - unit_unwatch_timer(UNIT(s), &s->timer_watch); + s->timer_event_source = sd_event_source_unref(s->timer_event_source); return r; } @@ -1860,8 +1808,8 @@ static int main_pid_good(Service *s) { /* If it's an alien child let's check if it is still * alive ... */ - if (s->main_pid_alien) - return kill(s->main_pid, 0) >= 0 || errno != ESRCH; + if (s->main_pid_alien && s->main_pid > 0) + return pid_is_alive(s->main_pid); /* .. otherwise assume we'll get a SIGCHLD for it, * which we really should wait for to collect exit @@ -1873,7 +1821,7 @@ static int main_pid_good(Service *s) { return -EAGAIN; } -static int control_pid_good(Service *s) { +_pure_ static int control_pid_good(Service *s) { assert(s); return s->control_pid > 0; @@ -1884,7 +1832,11 @@ static int cgroup_good(Service *s) { assert(s); - if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0) + if (!UNIT(s)->cgroup_path) + return 0; + + r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, UNIT(s)->cgroup_path, true); + if (r < 0) return r; return !r; @@ -1904,15 +1856,15 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) (s->restart == SERVICE_RESTART_ALWAYS || (s->restart == SERVICE_RESTART_ON_SUCCESS && s->result == SERVICE_SUCCESS) || (s->restart == SERVICE_RESTART_ON_FAILURE && s->result != SERVICE_SUCCESS) || + (s->restart == SERVICE_RESTART_ON_WATCHDOG && s->result == SERVICE_FAILURE_WATCHDOG) || (s->restart == SERVICE_RESTART_ON_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || s->result == SERVICE_FAILURE_CORE_DUMP))) && (s->result != SERVICE_FAILURE_EXIT_CODE || !set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) && (s->result != SERVICE_FAILURE_SIGNAL || - !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status))) - ) { + !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) { - r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch); + r = service_arm_timer(s, s->restart_usec); if (r < 0) goto fail; @@ -1921,15 +1873,25 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) s->forbid_restart = false; + /* we want fresh tmpdirs in case service is started again immediately */ + exec_runtime_destroy(s->exec_runtime); + s->exec_runtime = exec_runtime_unref(s->exec_runtime); + + /* Try to delete the pid file. At this point it will be + * out-of-date, and some software might be confused by it, so + * let's remove it. */ + if (s->pid_file) + unlink_noerrno(s->pid_file); + return; fail: - log_warning("%s failed to run install restart timer: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run install restart timer: %s", + UNIT(s)->id, strerror(-r)); service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); } -static void service_enter_signal(Service *s, ServiceState state, ServiceResult f); - static void service_enter_stop_post(Service *s, ServiceResult f) { int r; assert(s); @@ -1938,8 +1900,10 @@ static void service_enter_stop_post(Service *s, ServiceResult f) { s->result = f; service_unwatch_control_pid(s); + unit_watch_all_pids(UNIT(s)); - if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) { + s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]; + if (s->control_command) { s->control_command_id = SERVICE_EXEC_STOP_POST; r = service_spawn(s, @@ -1955,7 +1919,6 @@ static void service_enter_stop_post(Service *s, ServiceResult f) { if (r < 0) goto fail; - service_set_state(s, SERVICE_STOP_POST); } else service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS); @@ -1963,91 +1926,60 @@ static void service_enter_stop_post(Service *s, ServiceResult f) { return; fail: - log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'stop-post' task: %s", + UNIT(s)->id, strerror(-r)); service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); } static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) { int r; - Set *pid_set = NULL; - bool wait_for_exit = false; assert(s); if (f != SERVICE_SUCCESS) s->result = f; - if (s->kill_context.kill_mode != KILL_NONE) { - int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL; - - if (s->main_pid > 0) { - if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH) - log_warning("Failed to kill main process %li: %m", (long) s->main_pid); - else - wait_for_exit = !s->main_pid_alien; - } - - if (s->control_pid > 0) { - if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH) - log_warning("Failed to kill control process %li: %m", (long) s->control_pid); - else - wait_for_exit = true; - } - - if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) { - - pid_set = set_new(trivial_hash_func, trivial_compare_func); - if (!pid_set) { - r = -ENOMEM; - goto fail; - } - - /* Exclude the main/control pids from being killed via the cgroup */ - if (s->main_pid > 0) - if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) - goto fail; + unit_watch_all_pids(UNIT(s)); - if (s->control_pid > 0) - if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) - goto fail; + r = unit_kill_context( + UNIT(s), + &s->kill_context, + state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM, + s->main_pid, + s->control_pid, + s->main_pid_alien); - r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL); - if (r < 0) { - if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) - log_warning("Failed to kill control group: %s", strerror(-r)); - } else if (r > 0) - wait_for_exit = true; - - set_free(pid_set); - pid_set = NULL; - } - } + if (r < 0) + goto fail; - if (wait_for_exit) { + if (r > 0) { if (s->timeout_stop_usec > 0) { - r = unit_watch_timer(UNIT(s), s->timeout_stop_usec, &s->timer_watch); + r = service_arm_timer(s, s->timeout_stop_usec); if (r < 0) goto fail; } service_set_state(s, state); - } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) + } else if (state == SERVICE_STOP_SIGTERM) + service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS); + else if (state == SERVICE_STOP_SIGKILL) service_enter_stop_post(s, SERVICE_SUCCESS); + else if (state == SERVICE_FINAL_SIGTERM) + service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS); else service_enter_dead(s, SERVICE_SUCCESS, true); return; fail: - log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES); else service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); - - if (pid_set) - set_free(pid_set); } static void service_enter_stop(Service *s, ServiceResult f) { @@ -2059,8 +1991,10 @@ static void service_enter_stop(Service *s, ServiceResult f) { s->result = f; service_unwatch_control_pid(s); + unit_watch_all_pids(UNIT(s)); - if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) { + s->control_command = s->exec_command[SERVICE_EXEC_STOP]; + if (s->control_command) { s->control_command_id = SERVICE_EXEC_STOP; r = service_spawn(s, @@ -2083,7 +2017,8 @@ static void service_enter_stop(Service *s, ServiceResult f) { return; fail: - log_warning("%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'stop' task: %s", UNIT(s)->id, strerror(-r)); service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); } @@ -2111,11 +2046,10 @@ static void service_enter_start_post(Service *s) { assert(s); service_unwatch_control_pid(s); + service_reset_watchdog(s); - if (s->watchdog_usec > 0) - service_reset_watchdog(s); - - if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) { + s->control_command = s->exec_command[SERVICE_EXEC_START_POST]; + if (s->control_command) { s->control_command_id = SERVICE_EXEC_START_POST; r = service_spawn(s, @@ -2138,29 +2072,38 @@ static void service_enter_start_post(Service *s) { return; fail: - log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); service_enter_stop(s, SERVICE_FAILURE_RESOURCES); } +static void service_kill_control_processes(Service *s) { + char *p; + + if (!UNIT(s)->cgroup_path) + return; + + p = strappenda(UNIT(s)->cgroup_path, "/control"); + cg_kill_recursive(SYSTEMD_CGROUP_CONTROLLER, p, SIGKILL, true, true, true, NULL); +} + static void service_enter_start(Service *s) { + ExecCommand *c; pid_t pid; int r; - ExecCommand *c; assert(s); assert(s->exec_command[SERVICE_EXEC_START]); assert(!s->exec_command[SERVICE_EXEC_START]->command_next || s->type == SERVICE_ONESHOT); - if (s->type == SERVICE_FORKING) - service_unwatch_control_pid(s); - else - service_unwatch_main_pid(s); + service_unwatch_control_pid(s); + service_unwatch_main_pid(s); /* We want to ensure that nobody leaks processes from * START_PRE here, so let's go on a killing spree, People * should not spawn long running processes from START_PRE. */ - cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); + service_kill_control_processes(s); if (s->type == SERVICE_FORKING) { s->control_command_id = SERVICE_EXEC_START; @@ -2176,7 +2119,8 @@ static void service_enter_start(Service *s) { r = service_spawn(s, c, - s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, + s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || + s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT, true, true, true, @@ -2221,7 +2165,8 @@ static void service_enter_start(Service *s) { return; fail: - log_warning("%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'start' task: %s", UNIT(s)->id, strerror(-r)); service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); } @@ -2232,11 +2177,11 @@ static void service_enter_start_pre(Service *s) { service_unwatch_control_pid(s); - if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) { - + s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]; + if (s->control_command) { /* Before we start anything, let's clear up what might * be left from previous runs. */ - cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); + service_kill_control_processes(s); s->control_command_id = SERVICE_EXEC_START_PRE; @@ -2260,22 +2205,23 @@ static void service_enter_start_pre(Service *s) { return; fail: - log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true); } static void service_enter_restart(Service *s) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; int r; - DBusError error; assert(s); - dbus_error_init(&error); if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) { /* Don't restart things if we are going down anyway */ - log_info("Stop job pending for unit, delaying automatic restart."); + log_info_unit(UNIT(s)->id, + "Stop job pending for unit, delaying automatic restart."); - r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch); + r = service_arm_timer(s, s->restart_usec); if (r < 0) goto fail; @@ -2294,14 +2240,15 @@ static void service_enter_restart(Service *s) { * it will be canceled as part of the service_stop() call that * is executed as part of JOB_RESTART. */ - log_debug("%s scheduled restart job.", UNIT(s)->id); + log_debug_unit(UNIT(s)->id, + "%s scheduled restart job.", UNIT(s)->id); return; fail: - log_warning("%s failed to schedule restart job: %s", UNIT(s)->id, bus_error(&error, -r)); + log_warning_unit(UNIT(s)->id, + "%s failed to schedule restart job: %s", + UNIT(s)->id, bus_error_message(&error, -r)); service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false); - - dbus_error_free(&error); } static void service_enter_reload(Service *s) { @@ -2311,7 +2258,8 @@ static void service_enter_reload(Service *s) { service_unwatch_control_pid(s); - if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) { + s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]; + if (s->control_command) { s->control_command_id = SERVICE_EXEC_RELOAD; r = service_spawn(s, @@ -2334,7 +2282,9 @@ static void service_enter_reload(Service *s) { return; fail: - log_warning("%s failed to run 'reload' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'reload' task: %s", + UNIT(s)->id, strerror(-r)); s->reload_result = SERVICE_FAILURE_RESOURCES; service_enter_running(s, SERVICE_SUCCESS); } @@ -2368,7 +2318,9 @@ static void service_run_next_control(Service *s) { return; fail: - log_warning("%s failed to run next control task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run next control task: %s", + UNIT(s)->id, strerror(-r)); if (s->state == SERVICE_START_PRE) service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); @@ -2413,7 +2365,8 @@ static void service_run_next_main(Service *s) { return; fail: - log_warning("%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run next main task: %s", UNIT(s)->id, strerror(-r)); service_enter_stop(s, SERVICE_FAILURE_RESOURCES); } @@ -2426,38 +2379,44 @@ static int service_start_limit_test(Service *s) { switch (s->start_limit_action) { case SERVICE_START_LIMIT_NONE: - log_warning("%s start request repeated too quickly, refusing to start.", UNIT(s)->id); + log_warning_unit(UNIT(s)->id, + "%s start request repeated too quickly, refusing to start.", + UNIT(s)->id); break; case SERVICE_START_LIMIT_REBOOT: { - DBusError error; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; int r; - dbus_error_init(&error); - - log_warning("%s start request repeated too quickly, rebooting.", UNIT(s)->id); + log_warning_unit(UNIT(s)->id, + "%s start request repeated too quickly, rebooting.", UNIT(s)->id); - r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL); - if (r < 0) { - log_error("Failed to reboot: %s.", bus_error(&error, r)); - dbus_error_free(&error); - } + r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, + SPECIAL_REBOOT_TARGET, JOB_REPLACE, + true, &error, NULL); + if (r < 0) + log_error_unit(UNIT(s)->id, + "Failed to reboot: %s.", bus_error_message(&error, r)); break; } case SERVICE_START_LIMIT_REBOOT_FORCE: - log_warning("%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); + log_warning_unit(UNIT(s)->id, + "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id); UNIT(s)->manager->exit_code = MANAGER_REBOOT; break; case SERVICE_START_LIMIT_REBOOT_IMMEDIATE: - log_warning("%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); + log_warning_unit(UNIT(s)->id, + "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id); + sync(); reboot(RB_AUTOBOOT); break; default: - log_error("start limit action=%i", s->start_limit_action); + log_error_unit(UNIT(s)->id, + "start limit action=%i", s->start_limit_action); assert_not_reached("Unknown StartLimitAction."); } @@ -2566,7 +2525,7 @@ static int service_reload(Unit *u) { return 0; } -static bool service_can_reload(Unit *u) { +_pure_ static bool service_can_reload(Unit *u) { Service *s = SERVICE(u); assert(s); @@ -2586,10 +2545,11 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) { unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result)); if (s->control_pid > 0) - unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid); + unit_serialize_item_format(u, f, "control-pid", PID_FMT, + s->control_pid); if (s->main_pid_known && s->main_pid > 0) - unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid); + unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid); unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known)); @@ -2600,7 +2560,8 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) { * multiple commands attached here, we will start from the * first one again */ if (s->control_command_id >= 0) - unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id)); + unit_serialize_item(u, f, "control-command", + service_exec_command_to_string(s->control_command_id)); if (s->socket_fd >= 0) { int copy; @@ -2612,18 +2573,26 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) { } if (s->main_exec_status.pid > 0) { - unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu", (unsigned long) s->main_exec_status.pid); - dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp); - dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp); + unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT, + s->main_exec_status.pid); + dual_timestamp_serialize(f, "main-exec-status-start", + &s->main_exec_status.start_timestamp); + dual_timestamp_serialize(f, "main-exec-status-exit", + &s->main_exec_status.exit_timestamp); if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) { - unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code); - unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status); + unit_serialize_item_format(u, f, "main-exec-status-code", "%i", + s->main_exec_status.code); + unit_serialize_item_format(u, f, "main-exec-status-status", "%i", + s->main_exec_status.status); } } if (dual_timestamp_is_set(&s->watchdog_timestamp)) dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp); + if (s->forbid_restart) + unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart)); + return 0; } @@ -2638,8 +2607,9 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, if (streq(key, "state")) { ServiceState state; - if ((state = service_state_from_string(value)) < 0) - log_debug("Failed to parse state value %s", value); + state = service_state_from_string(value); + if (state < 0) + log_debug_unit(u->id, "Failed to parse state value %s", value); else s->deserialized_state = state; } else if (streq(key, "result")) { @@ -2647,7 +2617,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, f = service_result_from_string(value); if (f < 0) - log_debug("Failed to parse result value %s", value); + log_debug_unit(u->id, "Failed to parse result value %s", value); else if (f != SERVICE_SUCCESS) s->result = f; @@ -2656,7 +2626,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, f = service_result_from_string(value); if (f < 0) - log_debug("Failed to parse reload result value %s", value); + log_debug_unit(u->id, "Failed to parse reload result value %s", value); else if (f != SERVICE_SUCCESS) s->reload_result = f; @@ -2664,27 +2634,33 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, pid_t pid; if (parse_pid(value, &pid) < 0) - log_debug("Failed to parse control-pid value %s", value); + log_debug_unit(u->id, "Failed to parse control-pid value %s", value); else s->control_pid = pid; } else if (streq(key, "main-pid")) { pid_t pid; if (parse_pid(value, &pid) < 0) - log_debug("Failed to parse main-pid value %s", value); - else - service_set_main_pid(s, (pid_t) pid); + log_debug_unit(u->id, "Failed to parse main-pid value %s", value); + else { + service_set_main_pid(s, pid); + unit_watch_pid(UNIT(s), pid); + } } else if (streq(key, "main-pid-known")) { int b; - if ((b = parse_boolean(value)) < 0) - log_debug("Failed to parse main-pid-known value %s", value); + b = parse_boolean(value); + if (b < 0) + log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value); else s->main_pid_known = b; } else if (streq(key, "status-text")) { char *t; - if ((t = strdup(value))) { + t = strdup(value); + if (!t) + log_oom(); + else { free(s->status_text); s->status_text = t; } @@ -2692,8 +2668,9 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, } else if (streq(key, "control-command")) { ServiceExecCommand id; - if ((id = service_exec_command_from_string(value)) < 0) - log_debug("Failed to parse exec-command value %s", value); + id = service_exec_command_from_string(value); + if (id < 0) + log_debug_unit(u->id, "Failed to parse exec-command value %s", value); else { s->control_command_id = id; s->control_command = s->exec_command[id]; @@ -2702,7 +2679,7 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, int fd; if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) - log_debug("Failed to parse socket-fd value %s", value); + log_debug_unit(u->id, "Failed to parse socket-fd value %s", value); else { if (s->socket_fd >= 0) @@ -2713,21 +2690,21 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, pid_t pid; if (parse_pid(value, &pid) < 0) - log_debug("Failed to parse main-exec-status-pid value %s", value); + log_debug_unit(u->id, "Failed to parse main-exec-status-pid value %s", value); else s->main_exec_status.pid = pid; } else if (streq(key, "main-exec-status-code")) { int i; if (safe_atoi(value, &i) < 0) - log_debug("Failed to parse main-exec-status-code value %s", value); + log_debug_unit(u->id, "Failed to parse main-exec-status-code value %s", value); else s->main_exec_status.code = i; } else if (streq(key, "main-exec-status-status")) { int i; if (safe_atoi(value, &i) < 0) - log_debug("Failed to parse main-exec-status-status value %s", value); + log_debug_unit(u->id, "Failed to parse main-exec-status-status value %s", value); else s->main_exec_status.status = i; } else if (streq(key, "main-exec-status-start")) @@ -2736,13 +2713,21 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value, dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp); else if (streq(key, "watchdog-timestamp")) dual_timestamp_deserialize(value, &s->watchdog_timestamp); - else - log_debug("Unknown serialization key '%s'", key); + else if (streq(key, "forbid-restart")) { + int b; + + b = parse_boolean(value); + if (b < 0) + log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value); + else + s->forbid_restart = b; + } else + log_debug_unit(u->id, "Unknown serialization key '%s'", key); return 0; } -static UnitActiveState service_active_state(Unit *u) { +_pure_ static UnitActiveState service_active_state(Unit *u) { const UnitActiveState *table; assert(u); @@ -2778,12 +2763,12 @@ static bool service_check_gc(Unit *u) { return false; } -static bool service_check_snapshot(Unit *u) { +_pure_ static bool service_check_snapshot(Unit *u) { Service *s = SERVICE(u); assert(s); - return !s->got_socket_fd; + return (s->socket_fd < 0); } static int service_retry_pid_file(Service *s) { @@ -2805,18 +2790,24 @@ static int service_retry_pid_file(Service *s) { static int service_watch_pid_file(Service *s) { int r; - log_debug("Setting watch for %s's PID file %s", UNIT(s)->id, s->pid_file_pathspec->path); - r = path_spec_watch(s->pid_file_pathspec, UNIT(s)); + log_debug_unit(UNIT(s)->id, + "Setting watch for %s's PID file %s", + UNIT(s)->id, s->pid_file_pathspec->path); + r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io); if (r < 0) goto fail; /* the pidfile might have appeared just before we set the watch */ + log_debug_unit(UNIT(s)->id, + "Trying to read %s's PID file %s in case it changed", + UNIT(s)->id, s->pid_file_pathspec->path); service_retry_pid_file(s); return 0; fail: - log_error("Failed to set a watch for %s's PID file %s: %s", - UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); + log_error_unit(UNIT(s)->id, + "Failed to set a watch for %s's PID file %s: %s", + UNIT(s)->id, s->pid_file_pathspec->path, strerror(-r)); service_unwatch_pid_file(s); return r; } @@ -2831,6 +2822,7 @@ static int service_demand_pid_file(Service *s) { if (!ps) return -ENOMEM; + ps->unit = UNIT(s); ps->path = strdup(s->pid_file); if (!ps->path) { free(ps); @@ -2849,8 +2841,13 @@ static int service_demand_pid_file(Service *s) { return service_watch_pid_file(s); } -static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { - Service *s = SERVICE(u); +static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) { + PathSpec *p = userdata; + Service *s; + + assert(p); + + s = SERVICE(p->unit); assert(s); assert(fd >= 0); @@ -2858,21 +2855,79 @@ static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { assert(s->pid_file_pathspec); assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd)); - log_debug("inotify event for %s", u->id); + log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id); - if (path_spec_fd_event(s->pid_file_pathspec, events) < 0) + if (path_spec_fd_event(p, events) < 0) goto fail; if (service_retry_pid_file(s) == 0) - return; + return 0; if (service_watch_pid_file(s) < 0) goto fail; - return; + return 0; + fail: service_unwatch_pid_file(s); service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES); + return 0; +} + +static void service_notify_cgroup_empty_event(Unit *u) { + Service *s = SERVICE(u); + + assert(u); + + log_debug_unit(u->id, "%s: cgroup is empty", u->id); + + switch (s->state) { + + /* Waiting for SIGCHLD is usually more interesting, + * because it includes return codes/signals. Which is + * why we ignore the cgroup events for most cases, + * except when we don't know pid which to expect the + * SIGCHLD for. */ + + case SERVICE_START: + case SERVICE_START_POST: + /* If we were hoping for the daemon to write its PID file, + * we can give up now. */ + if (s->pid_file_pathspec) { + log_warning_unit(u->id, + "%s never wrote its PID file. Failing.", UNIT(s)->id); + service_unwatch_pid_file(s); + if (s->state == SERVICE_START) + service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); + else + service_enter_stop(s, SERVICE_FAILURE_RESOURCES); + } + break; + + case SERVICE_RUNNING: + /* service_enter_running() will figure out what to do */ + service_enter_running(s, SERVICE_SUCCESS); + break; + + case SERVICE_STOP_SIGTERM: + case SERVICE_STOP_SIGKILL: + + if (main_pid_good(s) <= 0 && !control_pid_good(s)) + service_enter_stop_post(s, SERVICE_SUCCESS); + + break; + + case SERVICE_STOP_POST: + case SERVICE_FINAL_SIGTERM: + case SERVICE_FINAL_SIGKILL: + if (main_pid_good(s) <= 0 && !control_pid_good(s)) + service_enter_dead(s, SERVICE_SUCCESS, true); + + break; + + default: + ; + } } static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { @@ -2904,19 +2959,37 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->main_pid = 0; exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); - /* If this is not a forking service than the main - * process got started and hence we copy the exit - * status so that it is recorded both as main and as - * control process exit status */ if (s->main_command) { + /* If this is not a forking service than the + * main process got started and hence we copy + * the exit status so that it is recorded both + * as main and as control process exit + * status */ + s->main_command->exec_status = s->main_exec_status; if (s->main_command->ignore) f = SERVICE_SUCCESS; + } else if (s->exec_command[SERVICE_EXEC_START]) { + + /* If this is a forked process, then we should + * ignore the return value if this was + * configured for the starter process */ + + if (s->exec_command[SERVICE_EXEC_START]->ignore) + f = SERVICE_SUCCESS; } - log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, - "%s: main process exited, code=%s, status=%i", u->id, sigchld_code_to_string(code), status); + log_struct_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, + u->id, + "MESSAGE=%s: main process exited, code=%s, status=%i/%s", + u->id, sigchld_code_to_string(code), status, + strna(code == CLD_EXITED + ? exit_status_to_string(status, EXIT_STATUS_FULL) + : signal_to_string(status)), + "EXIT_CODE=%s", sigchld_code_to_string(code), + "EXIT_STATUS=%i", status, + NULL); if (f != SERVICE_SUCCESS) s->result = f; @@ -2928,7 +3001,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* There is another command to * * execute, so let's do that. */ - log_debug("%s running next main command for state %s", u->id, service_state_to_string(s->state)); + log_debug_unit(u->id, + "%s running next main command for state %s", + u->id, service_state_to_string(s->state)); service_run_next_main(s); } else { @@ -2971,24 +3046,33 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* If there is still a control process, wait for that first */ break; + case SERVICE_STOP_POST: + case SERVICE_FINAL_SIGTERM: + case SERVICE_FINAL_SIGKILL: + + if (!control_pid_good(s)) + service_enter_dead(s, f, true); + break; + default: assert_not_reached("Uh, main process died at wrong time."); } } } else if (s->control_pid == pid) { - s->control_pid = 0; if (s->control_command) { - exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); + exec_status_exit(&s->control_command->exec_status, + &s->exec_context, pid, code, status); if (s->control_command->ignore) f = SERVICE_SUCCESS; } - log_full(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, - "%s: control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status); + log_full_unit(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id, + "%s: control process exited, code=%s status=%i", + u->id, sigchld_code_to_string(code), status); if (f != SERVICE_SUCCESS) s->result = f; @@ -2996,7 +3080,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* Immediately get rid of the cgroup, so that the * kernel doesn't delay the cgroup empty messages for * the service cgroup any longer than necessary */ - cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control"); + service_kill_control_processes(s); if (s->control_command && s->control_command->command_next && @@ -3005,7 +3089,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* There is another command to * * execute, so let's do that. */ - log_debug("%s running next control command for state %s", u->id, service_state_to_string(s->state)); + log_debug_unit(u->id, + "%s running next control command for state %s", + u->id, service_state_to_string(s->state)); service_run_next_control(s); } else { @@ -3015,7 +3101,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->control_command = NULL; s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; - log_debug("%s got final SIGCHLD for state %s", u->id, service_state_to_string(s->state)); + log_debug_unit(u->id, + "%s got final SIGCHLD for state %s", + u->id, service_state_to_string(s->state)); switch (s->state) { @@ -3107,7 +3195,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { case SERVICE_STOP_POST: case SERVICE_FINAL_SIGTERM: case SERVICE_FINAL_SIGKILL: - service_enter_dead(s, f, true); + if (main_pid_good(s) <= 0) + service_enter_dead(s, f, true); break; default: @@ -3118,51 +3207,64 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* Notify clients about changed exit status */ unit_add_to_dbus_queue(u); -} -static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { - Service *s = SERVICE(u); + /* We got one SIGCHLD for the service, let's watch all + * processes that are now running of the service, and watch + * that. Among the PIDs we then watch will be children + * reassigned to us, which hopefully allows us to identify + * when all children are gone */ + unit_tidy_watch_pids(u, s->main_pid, s->control_pid); + unit_watch_all_pids(u); - assert(s); - assert(elapsed == 1); + /* If the PID set is empty now, then let's finish this off */ + if (set_isempty(u->pids)) + service_notify_cgroup_empty_event(u); +} - if (w == &s->watchdog_watch) { - service_handle_watchdog(s); - return; - } +static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { + Service *s = SERVICE(userdata); - assert(w == &s->timer_watch); + assert(s); + assert(source == s->timer_event_source); switch (s->state) { case SERVICE_START_PRE: case SERVICE_START: - log_warning("%s operation timed out. Terminating.", u->id); + log_warning_unit(UNIT(s)->id, + "%s %s operation timed out. Terminating.", + UNIT(s)->id, + s->state == SERVICE_START ? "start" : "start-pre"); service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); break; case SERVICE_START_POST: - log_warning("%s operation timed out. Stopping.", u->id); + log_warning_unit(UNIT(s)->id, + "%s start-post operation timed out. Stopping.", UNIT(s)->id); service_enter_stop(s, SERVICE_FAILURE_TIMEOUT); break; case SERVICE_RELOAD: - log_warning("%s operation timed out. Stopping.", u->id); + log_warning_unit(UNIT(s)->id, + "%s reload operation timed out. Stopping.", UNIT(s)->id); s->reload_result = SERVICE_FAILURE_TIMEOUT; service_enter_running(s, SERVICE_SUCCESS); break; case SERVICE_STOP: - log_warning("%s stopping timed out. Terminating.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stopping timed out. Terminating.", UNIT(s)->id); service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT); break; case SERVICE_STOP_SIGTERM: if (s->kill_context.send_sigkill) { - log_warning("%s stopping timed out. Killing.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stop-sigterm timed out. Killing.", UNIT(s)->id); service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT); } else { - log_warning("%s stopping timed out. Skipping SIGKILL.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id); service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); } @@ -3173,115 +3275,91 @@ static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { * Must be something we cannot kill, so let's just be * weirded out and continue */ - log_warning("%s still around after SIGKILL. Ignoring.", u->id); + log_warning_unit(UNIT(s)->id, + "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT); break; case SERVICE_STOP_POST: - log_warning("%s stopping timed out (2). Terminating.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stop-post timed out. Terminating.", UNIT(s)->id); service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT); break; case SERVICE_FINAL_SIGTERM: if (s->kill_context.send_sigkill) { - log_warning("%s stopping timed out (2). Killing.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id); service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT); } else { - log_warning("%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.", u->id); + log_warning_unit(UNIT(s)->id, + "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.", + UNIT(s)->id); service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false); } break; case SERVICE_FINAL_SIGKILL: - log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id); + log_warning_unit(UNIT(s)->id, + "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id); service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true); break; case SERVICE_AUTO_RESTART: - log_info("%s holdoff time over, scheduling restart.", u->id); + log_info_unit(UNIT(s)->id, + s->restart_usec > 0 ? + "%s holdoff time over, scheduling restart." : + "%s has no holdoff time, scheduling restart.", + UNIT(s)->id); service_enter_restart(s); break; default: assert_not_reached("Timeout at wrong time."); } -} - -static void service_cgroup_notify_event(Unit *u) { - Service *s = SERVICE(u); - - assert(u); - - log_debug("%s: cgroup is empty", u->id); - - switch (s->state) { - - /* Waiting for SIGCHLD is usually more interesting, - * because it includes return codes/signals. Which is - * why we ignore the cgroup events for most cases, - * except when we don't know pid which to expect the - * SIGCHLD for. */ - - case SERVICE_START: - case SERVICE_START_POST: - /* If we were hoping for the daemon to write its PID file, - * we can give up now. */ - if (s->pid_file_pathspec) { - log_warning("%s never wrote its PID file. Failing.", UNIT(s)->id); - service_unwatch_pid_file(s); - if (s->state == SERVICE_START) - service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES); - else - service_enter_stop(s, SERVICE_FAILURE_RESOURCES); - } - break; - - case SERVICE_RUNNING: - /* service_enter_running() will figure out what to do */ - service_enter_running(s, SERVICE_SUCCESS); - break; - - case SERVICE_STOP_SIGTERM: - case SERVICE_STOP_SIGKILL: - if (main_pid_good(s) <= 0 && !control_pid_good(s)) - service_enter_stop_post(s, SERVICE_SUCCESS); + return 0; +} - break; +static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) { + Service *s = SERVICE(userdata); - case SERVICE_FINAL_SIGTERM: - case SERVICE_FINAL_SIGKILL: - if (main_pid_good(s) <= 0 && !control_pid_good(s)) - service_enter_dead(s, SERVICE_SUCCESS, true); + assert(s); + assert(source == s->watchdog_event_source); - break; + log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id); + service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG); - default: - ; - } + return 0; } static void service_notify_message(Unit *u, pid_t pid, char **tags) { Service *s = SERVICE(u); const char *e; + bool notify_dbus = false; assert(u); + log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)", + u->id, pid, tags && *tags ? tags[0] : "(empty)"); + if (s->notify_access == NOTIFY_NONE) { - log_warning("%s: Got notification message from PID %lu, but reception is disabled.", - u->id, (unsigned long) pid); + log_warning_unit(u->id, + "%s: Got notification message from PID "PID_FMT", but reception is disabled.", + u->id, pid); return; } if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) { - log_warning("%s: Got notification message from PID %lu, but reception only permitted for PID %lu", - u->id, (unsigned long) pid, (unsigned long) s->main_pid); + + if (s->main_pid != 0) + log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, u->id, pid, s->main_pid); + else + log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", u->id, pid); return; } - log_debug("%s: Got message", u->id); - /* Interpret MAINPID= */ if ((e = strv_find_prefix(tags, "MAINPID=")) && (s->state == SERVICE_START || @@ -3290,20 +3368,20 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) { s->state == SERVICE_RELOAD)) { if (parse_pid(e + 8, &pid) < 0) - log_warning("Failed to parse notification message %s", e); + log_warning_unit(u->id, "Failed to parse notification message %s", e); else { - log_debug("%s: got %s", u->id, e); + log_debug_unit(u->id, "%s: got %s", u->id, e); service_set_main_pid(s, pid); + unit_watch_pid(UNIT(s), pid); + notify_dbus = true; } } /* Interpret READY= */ - if (s->type == SERVICE_NOTIFY && - s->state == SERVICE_START && - strv_find(tags, "READY=1")) { - log_debug("%s: got READY=1", u->id); - + if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) { + log_debug_unit(u->id, "%s: got READY=1", u->id); service_enter_start_post(s); + notify_dbus = true; } /* Interpret STATUS= */ @@ -3312,110 +3390,64 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) { char *t; if (e[7]) { - if (!utf8_is_valid(e+7)) { - log_warning("Status message in notification is not UTF-8 clean."); + log_warning_unit(u->id, "Status message in notification is not UTF-8 clean."); return; } + log_debug_unit(u->id, "%s: got %s", u->id, e); + t = strdup(e+7); if (!t) { - log_error("Failed to allocate string."); + log_oom(); return; } - log_debug("%s: got %s", u->id, e); + } else + t = NULL; + if (!streq_ptr(s->status_text, t)) { free(s->status_text); s->status_text = t; - } else { - free(s->status_text); - s->status_text = NULL; - } - + notify_dbus = true; + } else + free(t); } + + /* Interpet WATCHDOG= */ if (strv_find(tags, "WATCHDOG=1")) { - log_debug("%s: got WATCHDOG=1", u->id); + log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id); service_reset_watchdog(s); } /* Notify clients about changed status or main pid */ - unit_add_to_dbus_queue(u); + if (notify_dbus) + unit_add_to_dbus_queue(u); } -#ifdef HAVE_SYSV_COMPAT - -#ifdef TARGET_SUSE -static void sysv_facility_in_insserv_conf(Manager *mgr) { - FILE *f=NULL; +static int service_get_timeout(Unit *u, uint64_t *timeout) { + Service *s = SERVICE(u); int r; - if (!(f = fopen("/etc/insserv.conf", "re"))) { - r = errno == ENOENT ? 0 : -errno; - goto finish; - } - - while (!feof(f)) { - char l[LINE_MAX], *t; - char **parsed = NULL; - - if (!fgets(l, sizeof(l), f)) { - if (feof(f)) - break; - - r = -errno; - log_error("Failed to read configuration file '/etc/insserv.conf': %s", strerror(-r)); - goto finish; - } - - t = strstrip(l); - if (*t != '$' && *t != '<') - continue; - - parsed = strv_split(t,WHITESPACE); - /* we ignore , not used, equivalent to X-Interactive */ - if (parsed && !startswith_no_case (parsed[0], "")) { - char *facility; - Unit *u; - if (sysv_translate_facility(parsed[0], NULL, &facility) < 0) - continue; - if ((u = manager_get_unit(mgr, facility)) && (u->type == UNIT_TARGET)) { - UnitDependency e; - char *dep = NULL, *name, **j; - - STRV_FOREACH (j, parsed+1) { - if (*j[0]=='+') { - e = UNIT_WANTS; - name = *j+1; - } - else { - e = UNIT_REQUIRES; - name = *j; - } - if (sysv_translate_facility(name, NULL, &dep) < 0) - continue; + if (!s->timer_event_source) + return 0; - r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, e, dep, NULL, true); - free(dep); - } - } - free(facility); - } - strv_free(parsed); - } -finish: - if (f) - fclose(f); + r = sd_event_source_get_time(s->timer_event_source, timeout); + if (r < 0) + return r; + return 1; } -#endif + +#ifdef HAVE_SYSV_COMPAT static int service_enumerate(Manager *m) { char **p; unsigned i; - DIR *d = NULL; - char *path = NULL, *fpath = NULL, *name = NULL; - Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL; + _cleanup_closedir_ DIR *d = NULL; + _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL; + Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; + _cleanup_set_free_ Set *shutdown_services = NULL; Unit *service; Iterator j; int r; @@ -3425,8 +3457,6 @@ static int service_enumerate(Manager *m) { if (m->running_as != SYSTEMD_SYSTEM) return 0; - zero(runlevel_services); - STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { struct dirent *de; @@ -3441,9 +3471,10 @@ static int service_enumerate(Manager *m) { if (d) closedir(d); - if (!(d = opendir(path))) { + d = opendir(path); + if (!d) { if (errno != ENOENT) - log_warning("opendir() failed on %s: %s", path, strerror(errno)); + log_warning("opendir(%s) failed: %m", path); continue; } @@ -3476,45 +3507,52 @@ static int service_enumerate(Manager *m) { if (access(fpath, X_OK) < 0) { if (errno != ENOENT) - log_warning("access() failed on %s: %s", fpath, strerror(errno)); + log_warning("access() failed on %s: %m", fpath); continue; } free(name); - if (!(name = sysv_translate_name(de->d_name + 3))) { - r = -ENOMEM; + name = sysv_translate_name(de->d_name + 3); + if (!name) { + r = log_oom(); goto finish; } - if ((r = manager_load_unit_prepare(m, name, NULL, NULL, &service)) < 0) { + r = manager_load_unit_prepare(m, name, NULL, NULL, &service); + if (r < 0) { log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); continue; } if (de->d_name[0] == 'S') { - if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) { + if (rcnd_table[i].type == RUNLEVEL_UP) { SERVICE(service)->sysv_start_priority_from_rcnd = MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); SERVICE(service)->sysv_enabled = true; } - if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0) + r = set_ensure_allocated(&runlevel_services[i], + trivial_hash_func, trivial_compare_func); + if (r < 0) goto finish; - if ((r = set_put(runlevel_services[i], service)) < 0) + r = set_put(runlevel_services[i], service); + if (r < 0) goto finish; } else if (de->d_name[0] == 'K' && - (rcnd_table[i].type == RUNLEVEL_DOWN || - rcnd_table[i].type == RUNLEVEL_SYSINIT)) { + (rcnd_table[i].type == RUNLEVEL_DOWN)) { - if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0) + r = set_ensure_allocated(&shutdown_services, + trivial_hash_func, trivial_compare_func); + if (r < 0) goto finish; - if ((r = set_put(shutdown_services, service)) < 0) + r = set_put(shutdown_services, service); + if (r < 0) goto finish; } } @@ -3535,7 +3573,10 @@ static int service_enumerate(Manager *m) { if (service->fragment_path) continue; - if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0) + r = unit_add_two_dependencies_by_name_inverse( + service, UNIT_AFTER, UNIT_WANTS, + rcnd_table[i].target, NULL, true); + if (r < 0) goto finish; } @@ -3543,36 +3584,26 @@ static int service_enumerate(Manager *m) { * runlevels we assume the stop jobs will be implicitly added * by the core logic. Also, we don't really distinguish here * between the runlevels 0 and 6 and just add them to the - * special shutdown target. On SUSE the boot.d/ runlevel is - * also used for shutdown, so we add links for that too to the - * shutdown target.*/ + * special shutdown target. */ SET_FOREACH(service, shutdown_services, j) { service = unit_follow_merge(service); if (service->fragment_path) continue; - if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0) + r = unit_add_two_dependencies_by_name( + service, UNIT_BEFORE, UNIT_CONFLICTS, + SPECIAL_SHUTDOWN_TARGET, NULL, true); + if (r < 0) goto finish; } r = 0; -#ifdef TARGET_SUSE - sysv_facility_in_insserv_conf (m); -#endif - finish: - free(path); - free(fpath); - free(name); for (i = 0; i < ELEMENTSOF(rcnd_table); i++) set_free(runlevel_services[i]); - set_free(shutdown_services); - - if (d) - closedir(d); return r; } @@ -3585,6 +3616,7 @@ static void service_bus_name_owner_change( const char *new_owner) { Service *s = SERVICE(u); + int r; assert(s); assert(name); @@ -3593,11 +3625,17 @@ static void service_bus_name_owner_change( assert(old_owner || new_owner); if (old_owner && new_owner) - log_debug("%s's D-Bus name %s changed owner from %s to %s", u->id, name, old_owner, new_owner); + log_debug_unit(u->id, + "%s's D-Bus name %s changed owner from %s to %s", + u->id, name, old_owner, new_owner); else if (old_owner) - log_debug("%s's D-Bus name %s no longer registered by %s", u->id, name, old_owner); + log_debug_unit(u->id, + "%s's D-Bus name %s no longer registered by %s", + u->id, name, old_owner); else - log_debug("%s's D-Bus name %s now registered by %s", u->id, name, new_owner); + log_debug_unit(u->id, + "%s's D-Bus name %s now registered by %s", + u->id, name, new_owner); s->bus_name_good = !!new_owner; @@ -3617,34 +3655,26 @@ static void service_bus_name_owner_change( s->state == SERVICE_RUNNING || s->state == SERVICE_RELOAD)) { - /* Try to acquire PID from bus service */ - log_debug("Trying to acquire PID from D-Bus name..."); - - bus_query_pid(u->manager, name); - } -} - -static void service_bus_query_pid_done( - Unit *u, - const char *name, - pid_t pid) { - - Service *s = SERVICE(u); + _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + pid_t pid; - assert(s); - assert(name); + /* Try to acquire PID from bus service */ - log_debug("%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); + r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds); + if (r >= 0) + r = sd_bus_creds_get_pid(creds, &pid); + if (r >= 0) { + log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid); - if (s->main_pid <= 0 && - (s->state == SERVICE_START || - s->state == SERVICE_START_POST || - s->state == SERVICE_RUNNING || - s->state == SERVICE_RELOAD)) - service_set_main_pid(s, pid); + service_set_main_pid(s, pid); + unit_watch_pid(UNIT(s), pid); + } + } } int service_set_socket_fd(Service *s, int fd, Socket *sock) { + _cleanup_free_ char *peer = NULL; + int r; assert(s); assert(fd >= 0); @@ -3662,8 +3692,24 @@ int service_set_socket_fd(Service *s, int fd, Socket *sock) { if (s->state != SERVICE_DEAD) return -EAGAIN; + if (getpeername_pretty(fd, &peer) >= 0) { + + if (UNIT(s)->description) { + _cleanup_free_ char *a; + + a = strjoin(UNIT(s)->description, " (", peer, ")", NULL); + if (!a) + return -ENOMEM; + + r = unit_set_description(UNIT(s), a); + } else + r = unit_set_description(UNIT(s), peer); + + if (r < 0) + return r; + } + s->socket_fd = fd; - s->got_socket_fd = true; unit_ref_set(&s->accept_socket, UNIT(sock)); @@ -3684,67 +3730,10 @@ static void service_reset_failed(Unit *u) { RATELIMIT_RESET(s->start_limit); } -static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) { +static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { Service *s = SERVICE(u); - int r = 0; - Set *pid_set = NULL; - - assert(s); - - if (s->main_pid <= 0 && who == KILL_MAIN) { - dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); - return -ESRCH; - } - - if (s->control_pid <= 0 && who == KILL_CONTROL) { - dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); - return -ESRCH; - } - - if (who == KILL_CONTROL || who == KILL_ALL) - if (s->control_pid > 0) - if (kill(s->control_pid, signo) < 0) - r = -errno; - - if (who == KILL_MAIN || who == KILL_ALL) - if (s->main_pid > 0) - if (kill(s->main_pid, signo) < 0) - r = -errno; - - if (who == KILL_ALL) { - int q; - - pid_set = set_new(trivial_hash_func, trivial_compare_func); - if (!pid_set) - return -ENOMEM; - - /* Exclude the control/main pid from being killed via the cgroup */ - if (s->control_pid > 0) { - q = set_put(pid_set, LONG_TO_PTR(s->control_pid)); - if (q < 0) { - r = q; - goto finish; - } - } - - if (s->main_pid > 0) { - q = set_put(pid_set, LONG_TO_PTR(s->main_pid)); - if (q < 0) { - r = q; - goto finish; - } - } - q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL); - if (q < 0 && q != -EAGAIN && q != -ESRCH && q != -ENOENT) - r = q; - } - -finish: - if (pid_set) - set_free(pid_set); - - return r; + return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error); } static const char* const service_state_table[_SERVICE_STATE_MAX] = { @@ -3771,6 +3760,7 @@ static const char* const service_restart_table[_SERVICE_RESTART_MAX] = { [SERVICE_RESTART_NO] = "no", [SERVICE_RESTART_ON_SUCCESS] = "on-success", [SERVICE_RESTART_ON_FAILURE] = "on-failure", + [SERVICE_RESTART_ON_WATCHDOG] = "on-watchdog", [SERVICE_RESTART_ON_ABORT] = "on-abort", [SERVICE_RESTART_ALWAYS] = "always" }; @@ -3831,11 +3821,15 @@ DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); const UnitVTable service_vtable = { .object_size = sizeof(Service), .exec_context_offset = offsetof(Service, exec_context), + .cgroup_context_offset = offsetof(Service, cgroup_context), + .kill_context_offset = offsetof(Service, kill_context), + .exec_runtime_offset = offsetof(Service, exec_runtime), .sections = "Unit\0" "Service\0" "Install\0", + .private_section = "Service", .init = service_init, .done = service_done, @@ -3863,24 +3857,27 @@ const UnitVTable service_vtable = { .check_snapshot = service_check_snapshot, .sigchld_event = service_sigchld_event, - .timer_event = service_timer_event, - .fd_event = service_fd_event, .reset_failed = service_reset_failed, - .cgroup_notify_empty = service_cgroup_notify_event, + .notify_cgroup_empty = service_notify_cgroup_empty_event, .notify_message = service_notify_message, .bus_name_owner_change = service_bus_name_owner_change, - .bus_query_pid_done = service_bus_query_pid_done, .bus_interface = "org.freedesktop.systemd1.Service", - .bus_message_handler = bus_service_message_handler, - .bus_invalidating_properties = bus_service_invalidating_properties, + .bus_vtable = bus_service_vtable, + .bus_set_property = bus_service_set_property, + .bus_commit_properties = bus_service_commit_properties, + + .get_timeout = service_get_timeout, #ifdef HAVE_SYSV_COMPAT .enumerate = service_enumerate, #endif + + .can_transient = true, + .status_message_formats = { .starting_stopping = { [0] = "Starting %s...",