X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fservice.c;h=0464d1e48760a307da4929db16b16a31ba27997c;hp=03a858a4ae38e0b322eeccee118201ee83d81ad5;hb=de3910a324aefcb15c26be27033d6917494e5946;hpb=c06b7a15ea4bd9a6063eb16e1b4ee77ef05714b4 diff --git a/src/service.c b/src/service.c index 03a858a4a..0464d1e48 100644 --- a/src/service.c +++ b/src/service.c @@ -35,13 +35,12 @@ #include "special.h" #include "bus-errors.h" #include "exit-status.h" - -#define COMMENTS "#;\n" -#define NEWLINES "\n\r" +#include "def.h" +#include "util.h" #ifdef HAVE_SYSV_COMPAT -#define DEFAULT_SYSV_TIMEOUT_USEC (3*USEC_PER_MINUTE) +#define DEFAULT_SYSV_TIMEOUT_USEC (5*USEC_PER_MINUTE) typedef enum RunlevelType { RUNLEVEL_UP, @@ -66,7 +65,7 @@ static const struct { { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, #endif -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE) || defined(TARGET_ANGSTROM) /* Debian style rcS.d */ { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, #endif @@ -116,10 +115,14 @@ static void service_init(Unit *u) { s->timer_watch.type = WATCH_INVALID; #ifdef HAVE_SYSV_COMPAT s->sysv_start_priority = -1; + s->sysv_start_priority_from_rcnd = -1; #endif s->socket_fd = -1; + s->guess_main_pid = true; exec_context_init(&s->exec_context); + s->exec_context.std_output = u->meta.manager->default_std_output; + s->exec_context.std_error = u->meta.manager->default_std_error; RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5); @@ -157,12 +160,16 @@ static int service_set_main_pid(Service *s, pid_t pid) { if (pid == getpid()) return -EINVAL; - if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) + 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.", s->meta.id, (unsigned long) pid); - s->main_pid = pid; - s->main_pid_known = true; + s->main_pid_alien = true; + } else + s->main_pid_alien = false; exec_status_start(&s->main_exec_status, pid); @@ -211,6 +218,7 @@ static void service_done(Unit *u) { exec_context_done(&s->exec_context); exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX); s->control_command = NULL; + s->main_command = NULL; /* This will leak a process, but at least no memory or any of * our resources */ @@ -238,7 +246,7 @@ static char *sysv_translate_name(const char *name) { if (!(r = new(char, strlen(name) + sizeof(".service")))) return NULL; -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) if (endswith(name, ".sh")) /* Drop Debian-style .sh suffix */ strcpy(stpcpy(r, name) - 3, ".service"); @@ -271,19 +279,25 @@ 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, +#ifndef TARGET_MANDRIVA + /* 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 */ "network", SPECIAL_NETWORK_TARGET, +#endif "named", SPECIAL_NSS_LOOKUP_TARGET, "portmap", SPECIAL_RPCBIND_TARGET, "remote_fs", SPECIAL_REMOTE_FS_TARGET, "syslog", SPECIAL_SYSLOG_TARGET, - "time", SPECIAL_RTC_SET_TARGET, + "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) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) "mail-transport-agent", SPECIAL_MAIL_TRANSFER_AGENT_TARGET, #endif @@ -331,7 +345,7 @@ static int sysv_translate_facility(const char *name, const char *filename, char /* Facilities starting with $ are most likely targets */ r = unit_name_build(n, NULL, ".target"); } else if (filename && streq(name, filename)) - /* Names equalling the file name of the services are redundant */ + /* Names equaling the file name of the services are redundant */ return 0; else /* Everything else we assume to be normal service names */ @@ -341,9 +355,7 @@ static int sysv_translate_facility(const char *name, const char *filename, char return -ENOMEM; finish: - - if (_r) - *_r = r; + *_r = r; return 1; } @@ -360,7 +372,7 @@ static int sysv_fix_order(Service *s) { /* For each pair of services where at least one lacks a LSB * header, we use the start priority value to order things. */ - LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) { + LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) { Service *t; UnitDependency d; bool special_s, special_t; @@ -398,7 +410,7 @@ static int sysv_fix_order(Service *s) { /* FIXME: Maybe we should compare the name here lexicographically? */ - if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) + if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) return r; } @@ -458,6 +470,7 @@ static int service_load_sysv_path(Service *s, const char *path) { LSB_DESCRIPTION } state = NORMAL; char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL, *description; + struct stat st; assert(s); assert(path); @@ -469,12 +482,26 @@ static int service_load_sysv_path(Service *s, const char *path) { goto finish; } + zero(st); + if (fstat(fileno(f), &st) < 0) { + r = -errno; + goto finish; + } + free(s->sysv_path); if (!(s->sysv_path = strdup(path))) { r = -ENOMEM; goto finish; } + s->sysv_mtime = timespec_load(&st.st_mtim); + + if (null_or_empty(&st)) { + u->meta.load_state = UNIT_MASKED; + r = 0; + goto finish; + } + while (!feof(f)) { char l[LINE_MAX], *t; @@ -530,7 +557,7 @@ static int service_load_sysv_path(Service *s, const char *path) { * data from the LSB header. */ if (start_priority < 0 || start_priority > 99) log_warning("[%s:%u] Start priority out of range. Ignoring.", path, line); - else if (s->sysv_start_priority < 0) + else s->sysv_start_priority = start_priority; char_array_0(runlevels); @@ -608,7 +635,7 @@ static int service_load_sysv_path(Service *s, const char *path) { char *d = NULL; if (chkconfig_description) - asprintf(&d, "%s %s", chkconfig_description, j); + d = join(chkconfig_description, " ", j, NULL); else d = strdup(j); @@ -648,16 +675,21 @@ static int service_load_sysv_path(Service *s, const char *path) { if (unit_name_to_type(m) == UNIT_SERVICE) r = unit_add_name(u, m); - else { - r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL, true); - - if (s->sysv_enabled) { - int k; - - if ((k = unit_add_dependency_by_name_inverse(u, UNIT_WANTS, m, NULL, true)) < 0) - r = k; - } - } + else + /* NB: SysV targets + * which are provided + * by a service are + * pulled in by the + * services, as an + * indication that the + * generic service is + * now available. This + * is strictly + * one-way. The + * targets do NOT pull + * in the SysV + * services! */ + 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)); @@ -773,7 +805,7 @@ static int service_load_sysv_path(Service *s, const char *path) { char *d = NULL; if (long_description) - asprintf(&d, "%s %s", long_description, t); + d = join(long_description, " ", t, NULL); else d = strdup(j); @@ -811,12 +843,12 @@ static int service_load_sysv_path(Service *s, const char *path) { /* Special setting for all SysV services */ s->type = SERVICE_FORKING; - s->remain_after_exit = true; + s->remain_after_exit = !s->pid_file; s->restart = SERVICE_RESTART_NO; s->exec_context.std_output = (s->meta.manager->sysv_console || s->exec_context.std_input == EXEC_INPUT_TTY) - ? EXEC_OUTPUT_TTY : EXEC_OUTPUT_NULL; - s->exec_context.kill_mode = KILL_PROCESS_GROUP; + ? EXEC_OUTPUT_TTY : s->meta.manager->default_std_output; + s->exec_context.kill_mode = KILL_PROCESS; /* We use the long description only if * no short description is set. */ @@ -833,7 +865,7 @@ static int service_load_sysv_path(Service *s, const char *path) { if (description) { char *d; - if (!(d = strappend("LSB: ", description))) { + if (!(d = strappend(s->sysv_has_lsb ? "LSB: " : "SYSV: ", description))) { r = -ENOMEM; goto finish; } @@ -841,6 +873,12 @@ static int service_load_sysv_path(Service *s, const char *path) { u->meta.description = d; } + /* The priority that has been set in /etc/rcN.d/ hierarchies + * takes precedence over what is stored as default in the LSB + * header */ + if (s->sysv_start_priority_from_rcnd >= 0) + s->sysv_start_priority = s->sysv_start_priority_from_rcnd; + u->meta.load_state = UNIT_LOADED; r = 0; @@ -864,7 +902,7 @@ static int service_load_sysv_name(Service *s, const char *name) { /* For SysV services we strip the boot.*, rc.* and *.sh * prefixes/suffixes. */ -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) if (endswith(name, ".sh.service")) return -ENOENT; #endif @@ -883,7 +921,8 @@ static int service_load_sysv_name(Service *s, const char *name) { char *path; int r; - if (asprintf(&path, "%s/%s", *p, name) < 0) + path = join(*p, "/", name, NULL); + if (!path) return -ENOMEM; assert(endswith(path, ".service")); @@ -891,7 +930,7 @@ 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) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) if (r >= 0 && s->meta.load_state == UNIT_STUB) { /* Try Debian style *.sh source'able init scripts */ strcat(path, ".sh"); @@ -904,7 +943,8 @@ static int service_load_sysv_name(Service *s, const char *name) { if (r >= 0 && s->meta.load_state == UNIT_STUB) { /* Try SUSE style boot.* init scripts */ - if (asprintf(&path, "%s/boot.%s", *p, name) < 0) + path = join(*p, "/boot.", name, NULL); + if (!path) return -ENOMEM; /* Drop .service suffix */ @@ -918,7 +958,8 @@ static int service_load_sysv_name(Service *s, const char *name) { if (r >= 0 && s->meta.load_state == UNIT_STUB) { /* Try Frugalware style rc.* init scripts */ - if (asprintf(&path, "%s/rc.%s", *p, name) < 0) + path = join(*p, "/rc.", name, NULL); + if (!path) return -ENOMEM; /* Drop .service suffix */ @@ -983,7 +1024,7 @@ static int fsck_fix_order(Service *s) { /* For each pair of services where both have an fsck priority * we order things based on it. */ - LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_SERVICE]) { + LIST_FOREACH(units_by_type, other, s->meta.manager->units_by_type[UNIT_SERVICE]) { Service *t; UnitDependency d; @@ -1005,7 +1046,7 @@ static int fsck_fix_order(Service *s) { else continue; - if (!(r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) + if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0) return r; } @@ -1122,7 +1163,7 @@ static int service_load(Unit *u) { 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_TARGET, NULL, true)) < 0) + if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0) return r; if (s->meta.default_dependencies) @@ -1150,6 +1191,7 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { "%sPermissionsStartOnly: %s\n" "%sRootDirectoryStartOnly: %s\n" "%sRemainAfterExit: %s\n" + "%sGuessMainPID: %s\n" "%sType: %s\n" "%sRestart: %s\n" "%sNotifyAccess: %s\n", @@ -1157,6 +1199,7 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { prefix, yes_no(s->permissions_start_only), prefix, yes_no(s->root_directory_start_only), prefix, yes_no(s->remain_after_exit), + prefix, yes_no(s->guess_main_pid), prefix, service_type_to_string(s->type), prefix, service_restart_to_string(s->restart), prefix, notify_access_to_string(s->notify_access)); @@ -1168,8 +1211,12 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { if (s->main_pid > 0) fprintf(f, - "%sMain PID: %lu\n", - prefix, (unsigned long) s->main_pid); + "%sMain PID: %lu\n" + "%sMain PID Known: %s\n" + "%sMain PID Alien: %s\n", + prefix, (unsigned long) s->main_pid, + prefix, yes_no(s->main_pid_known), + prefix, yes_no(s->main_pid_alien)); if (s->pid_file) fprintf(f, @@ -1238,10 +1285,8 @@ static int service_load_pid_file(Service *s) { if (s->main_pid_known) return 0; - assert(s->main_pid <= 0); - if (!s->pid_file) - return -ENOENT; + return 0; if ((r = read_one_line_file(s->pid_file, &k)) < 0) return r; @@ -1274,9 +1319,14 @@ static int service_search_main_pid(Service *s) { assert(s); + /* If we know it anyway, don't ever fallback to unreliable + * heuristics */ if (s->main_pid_known) return 0; + if (!s->guess_main_pid) + return 0; + assert(s->main_pid <= 0); if ((pid = cgroup_bonding_search_main_pid_list(s->meta.cgroup_bondings)) <= 0) @@ -1400,8 +1450,10 @@ static void service_set_state(Service *s, ServiceState state) { state != SERVICE_RELOAD && state != SERVICE_STOP && state != SERVICE_STOP_SIGTERM && - state != SERVICE_STOP_SIGKILL) + state != SERVICE_STOP_SIGKILL) { service_unwatch_main_pid(s); + s->main_command = NULL; + } if (state != SERVICE_START_PRE && state != SERVICE_START && @@ -1447,7 +1499,7 @@ static void service_set_state(Service *s, ServiceState state) { /* For the inactive states unit_notify() will trim the cgroup, * but for exit we have to do that ourselves... */ - if (state == SERVICE_EXITED) + if (state == SERVICE_EXITED && s->meta.manager->n_reloading <= 0) cgroup_bonding_trim_list(s->meta.cgroup_bondings, true); if (old_state != state) @@ -1569,8 +1621,8 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) { goto fail; } - memcpy(t, rfds, rn_fds); - memcpy(t+rn_fds, cfds, cn_fds); + memcpy(t, rfds, rn_fds * sizeof(int)); + memcpy(t+rn_fds, cfds, cn_fds * sizeof(int)); free(rfds); free(cfds); @@ -1647,7 +1699,7 @@ static int service_spawn( } if (set_notify_socket) - if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=@%s", s->meta.manager->notify_socket) < 0) { + if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", s->meta.manager->notify_socket) < 0) { r = -ENOMEM; goto fail; } @@ -1715,8 +1767,18 @@ static int main_pid_good(Service *s) { /* If we know the pid file, then lets just check if it is * still valid */ - if (s->main_pid_known) + if (s->main_pid_known) { + + /* 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; + + /* .. otherwise assume we'll get a SIGCHLD for it, + * which we really should wait for to collect exit + * status and code */ return s->main_pid > 0; + } /* We don't know the pid */ return -EAGAIN; @@ -1782,8 +1844,9 @@ static void service_enter_stop_post(Service *s, bool success) { service_unwatch_control_pid(s); - s->control_command_id = SERVICE_EXEC_STOP_POST; if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) { + s->control_command_id = SERVICE_EXEC_STOP_POST; + if ((r = service_spawn(s, s->control_command, true, @@ -1821,20 +1884,14 @@ static void service_enter_signal(Service *s, ServiceState state, bool success) { int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL; if (s->main_pid > 0) { - if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ? - -s->main_pid : - s->main_pid, sig) < 0 && errno != ESRCH) - + 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 = true; + wait_for_exit = !s->main_pid_alien; } if (s->control_pid > 0) { - if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ? - -s->control_pid : - s->control_pid, sig) < 0 && errno != ESRCH) - + 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; @@ -1856,13 +1913,14 @@ static void service_enter_signal(Service *s, ServiceState state, bool success) { if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) goto fail; - if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) { + if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 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; } } @@ -1901,8 +1959,9 @@ static void service_enter_stop(Service *s, bool success) { service_unwatch_control_pid(s); - s->control_command_id = SERVICE_EXEC_STOP; if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) { + s->control_command_id = SERVICE_EXEC_STOP; + if ((r = service_spawn(s, s->control_command, true, @@ -1950,8 +2009,9 @@ static void service_enter_start_post(Service *s) { service_unwatch_control_pid(s); - s->control_command_id = SERVICE_EXEC_START_POST; if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) { + s->control_command_id = SERVICE_EXEC_START_POST; + if ((r = service_spawn(s, s->control_command, true, @@ -1977,6 +2037,7 @@ fail: static void service_enter_start(Service *s) { pid_t pid; int r; + ExecCommand *c; assert(s); @@ -1988,11 +2049,20 @@ static void service_enter_start(Service *s) { else service_unwatch_main_pid(s); - s->control_command_id = SERVICE_EXEC_START; - s->control_command = s->exec_command[SERVICE_EXEC_START]; + if (s->type == SERVICE_FORKING) { + s->control_command_id = SERVICE_EXEC_START; + c = s->control_command = s->exec_command[SERVICE_EXEC_START]; + + s->main_command = NULL; + } else { + s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; + s->control_command = NULL; + + c = s->main_command = s->exec_command[SERVICE_EXEC_START]; + } if ((r = service_spawn(s, - s->control_command, + c, s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY, true, true, @@ -2047,8 +2117,9 @@ static void service_enter_start_pre(Service *s) { service_unwatch_control_pid(s); - s->control_command_id = SERVICE_EXEC_START_PRE; if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) { + s->control_command_id = SERVICE_EXEC_START_PRE; + if ((r = service_spawn(s, s->control_command, true, @@ -2107,8 +2178,9 @@ static void service_enter_reload(Service *s) { service_unwatch_control_pid(s); - s->control_command_id = SERVICE_EXEC_RELOAD; if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) { + s->control_command_id = SERVICE_EXEC_RELOAD; + if ((r = service_spawn(s, s->control_command, true, @@ -2182,20 +2254,18 @@ static void service_run_next_main(Service *s, bool success) { int r; assert(s); - assert(s->control_command); - assert(s->control_command->command_next); + assert(s->main_command); + assert(s->main_command->command_next); + assert(s->type == SERVICE_ONESHOT); if (!success) s->failure = true; - assert(s->control_command_id == SERVICE_EXEC_START); - assert(s->type == SERVICE_ONESHOT); - - s->control_command = s->control_command->command_next; + s->main_command = s->main_command->command_next; service_unwatch_main_pid(s); if ((r = service_spawn(s, - s->control_command, + s->main_command, false, true, true, @@ -2245,6 +2315,7 @@ static int service_start(Unit *u) { s->failure = false; s->main_pid_known = false; + s->main_pid_alien = false; s->forbid_restart = false; service_enter_start_pre(s); @@ -2475,16 +2546,26 @@ static const char *service_sub_state_to_string(Unit *u) { return service_state_to_string(SERVICE(u)->state); } -#ifdef HAVE_SYSV_COMPAT static bool service_check_gc(Unit *u) { Service *s = SERVICE(u); assert(s); - return !!s->sysv_path; -} + /* Never clean up services that still have a process around, + * even if the service is formally dead. */ + if (cgroup_good(s) > 0 || + main_pid_good(s) > 0 || + control_pid_good(s) > 0) + return true; + +#ifdef HAVE_SYSV_COMPAT + if (s->sysv_path) + return true; #endif + return false; +} + static bool service_check_snapshot(Unit *u) { Service *s = SERVICE(u); @@ -2508,12 +2589,16 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { if (s->main_pid == pid) { s->main_pid = 0; - exec_status_exit(&s->main_exec_status, pid, code, status, s->exec_context.utmp_id); + exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); - if (s->type != SERVICE_FORKING && s->control_command) { - s->control_command->exec_status = s->main_exec_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) { + s->main_command->exec_status = s->main_exec_status; - if (s->control_command->ignore) + if (s->main_command->ignore) success = true; } @@ -2521,8 +2606,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { "%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status); s->failure = s->failure || !success; - if (s->control_command && - s->control_command->command_next && + if (s->main_command && + s->main_command->command_next && success) { /* There is another command to * @@ -2535,9 +2620,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* The service exited, so the service is officially * gone. */ - - s->control_command = NULL; - s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID; + s->main_command = NULL; switch (s->state) { @@ -2585,7 +2668,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->control_pid = 0; if (s->control_command) { - exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id); + exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); if (s->control_command->ignore) success = true; @@ -2644,21 +2727,21 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { break; case SERVICE_START_POST: - if (success && s->pid_file && !s->main_pid_known) { - int r; - - /* Hmm, let's see if we can - * load the pid now after the - * start-post scripts got - * executed. */ - - if ((r = service_load_pid_file(s)) < 0) - log_warning("%s: failed to load PID file %s: %s", s->meta.id, s->pid_file, strerror(-r)); + if (success) { + service_load_pid_file(s); + service_search_main_pid(s); } - /* Fall through */ + s->reload_failure = !success; + service_enter_running(s, true); + break; case SERVICE_RELOAD: + if (success) { + service_load_pid_file(s); + service_search_main_pid(s); + } + s->reload_failure = !success; service_enter_running(s, true); break; @@ -2737,7 +2820,7 @@ static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) { break; case SERVICE_STOP_SIGKILL: - /* Uh, wie sent a SIGKILL and it is still not gone? + /* Uh, we sent a SIGKILL and it is still not gone? * Must be something we cannot kill, so let's just be * weirded out and continue */ @@ -2797,6 +2880,7 @@ static void service_cgroup_notify_event(Unit *u) { case SERVICE_STOP_SIGTERM: case SERVICE_STOP_SIGKILL: + if (main_pid_good(s) <= 0 && !control_pid_good(s)) service_enter_stop_post(s, true); @@ -2884,6 +2968,72 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) { } #ifdef HAVE_SYSV_COMPAT + +#ifdef TARGET_SUSE +static void sysv_facility_in_insserv_conf(Manager *mgr) { + FILE *f=NULL; + 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->meta.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; + + 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); + +} +#endif + static int service_enumerate(Manager *m) { char **p; unsigned i; @@ -2896,6 +3046,9 @@ static int service_enumerate(Manager *m) { assert(m); + if (m->running_as != MANAGER_SYSTEM) + return 0; + zero(runlevel_services); STRV_FOREACH(p, m->lookup_paths.sysvrcnd_path) @@ -2903,8 +3056,8 @@ static int service_enumerate(Manager *m) { struct dirent *de; free(path); - path = NULL; - if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) { + path = join(*p, "/", rcnd_table[i].path, NULL); + if (!path) { r = -ENOMEM; goto finish; } @@ -2938,8 +3091,8 @@ static int service_enumerate(Manager *m) { continue; free(fpath); - fpath = NULL; - if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) { + fpath = join(path, "/", de->d_name, NULL); + if (!path) { r = -ENOMEM; goto finish; } @@ -2966,8 +3119,8 @@ static int service_enumerate(Manager *m) { if (de->d_name[0] == 'S') { if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) { - SERVICE(service)->sysv_start_priority = - MAX(a*10 + b, SERVICE(service)->sysv_start_priority); + SERVICE(service)->sysv_start_priority_from_rcnd = + MAX(a*10 + b, SERVICE(service)->sysv_start_priority_from_rcnd); SERVICE(service)->sysv_enabled = true; } @@ -3012,7 +3165,7 @@ static int service_enumerate(Manager *m) { /* We honour K links only for halt/reboot. For the normal * runlevels we assume the stop jobs will be implicitly added - * by the core logic. Also, we don't really distuingish here + * 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 @@ -3029,6 +3182,10 @@ static int service_enumerate(Manager *m) { r = 0; +#ifdef TARGET_SUSE + sysv_facility_in_insserv_conf (m); +#endif + finish: free(path); free(fpath); @@ -3146,6 +3303,29 @@ static void service_reset_failed(Unit *u) { s->failure = false; } +static bool service_need_daemon_reload(Unit *u) { + Service *s = SERVICE(u); + + assert(s); + +#ifdef HAVE_SYSV_COMPAT + if (s->sysv_path) { + struct stat st; + + zero(st); + if (stat(s->sysv_path, &st) < 0) + /* What, cannot access this anymore? */ + return true; + + if (s->sysv_mtime > 0 && + timespec_load(&st.st_mtim) != s->sysv_mtime) + return true; + } +#endif + + return false; +} + static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) { Service *s = SERVICE(u); int r = 0; @@ -3155,23 +3335,25 @@ static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusErro if (s->main_pid <= 0 && who == KILL_MAIN) { dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); - return -EINVAL; + 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 -ENOENT; + return -ESRCH; } - if (s->control_pid > 0) - if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0) - r = -errno; + if (who == KILL_CONTROL || who == KILL_ALL) + if (s->control_pid > 0) + if (kill(s->control_pid, signo) < 0) + r = -errno; - if (s->main_pid > 0) - if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_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 (mode == KILL_CONTROL_GROUP) { + if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) { int q; if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) @@ -3190,8 +3372,8 @@ static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusErro goto finish; } - if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0) - if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) + if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0) + if (q != -EAGAIN && q != -ESRCH && q != -ENOENT) r = q; } @@ -3263,6 +3445,10 @@ DEFINE_STRING_TABLE_LOOKUP(notify_access, NotifyAccess); const UnitVTable service_vtable = { .suffix = ".service", + .sections = + "Unit\0" + "Service\0" + "Install\0", .show_status = true, .init = service_init, @@ -3287,9 +3473,7 @@ const UnitVTable service_vtable = { .active_state = service_active_state, .sub_state_to_string = service_sub_state_to_string, -#ifdef HAVE_SYSV_COMPAT .check_gc = service_check_gc, -#endif .check_snapshot = service_check_snapshot, .sigchld_event = service_sigchld_event, @@ -3297,6 +3481,8 @@ const UnitVTable service_vtable = { .reset_failed = service_reset_failed, + .need_daemon_reload = service_need_daemon_reload, + .cgroup_notify_empty = service_cgroup_notify_event, .notify_message = service_notify_message,