X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fservice.c;h=cf084853743550244ae88e711ecf2d35c67bc086;hp=e74da54eac5b288ed54c7c839335fb73a460807e;hb=e4f44e734c4f397ee5e7ba3270e014a8ae0043dd;hpb=d568a3350ee8a45877eef87cd026a954124e2cf8 diff --git a/src/core/service.c b/src/core/service.c index e74da54ea..cf0848537 100644 --- a/src/core/service.c +++ b/src/core/service.c @@ -33,6 +33,7 @@ #include "log.h" #include "strv.h" #include "unit-name.h" +#include "unit-printf.h" #include "dbus-service.h" #include "special.h" #include "bus-errors.h" @@ -294,6 +295,16 @@ static void service_done(Unit *u) { s->control_command = NULL; s->main_command = NULL; + set_free(s->restart_ignore_status.code); + s->restart_ignore_status.code = NULL; + set_free(s->restart_ignore_status.signal); + s->restart_ignore_status.signal = NULL; + + set_free(s->success_status.code); + s->success_status.code = NULL; + set_free(s->success_status.signal); + s->success_status.signal = NULL; + /* This will leak a process, but at least no memory or any of * our resources */ service_unwatch_main_pid(s); @@ -379,12 +390,6 @@ static int sysv_translate_facility(const char *name, const char *filename, char "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 @@ -515,7 +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); @@ -532,14 +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; @@ -549,10 +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); @@ -601,8 +619,23 @@ static int service_load_sysv_path(Service *s, const char *path) { 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; @@ -895,7 +928,7 @@ 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) && @@ -922,7 +955,6 @@ static int service_load_sysv_path(Service *s, const char *path) { s->timeout_stop_usec = DEFAULT_SYSV_TIMEOUT_USEC; } - /* Special setting for all SysV services */ s->type = SERVICE_FORKING; s->remain_after_exit = !s->pid_file; @@ -1151,12 +1183,6 @@ static int service_verify(Service *s) { return -EINVAL; } - if (s->type == SERVICE_ONESHOT && - s->exec_command[SERVICE_EXEC_RELOAD]) { - log_error("%s has an ExecReload setting, which is not 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); return -EINVAL; @@ -1182,12 +1208,12 @@ static int service_add_default_dependencies(Service *s) { * majority of services. */ /* First, pull in base system */ - if (UNIT(s)->manager->running_as == MANAGER_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 == MANAGER_USER) { + } 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; @@ -1582,7 +1608,12 @@ static void service_set_state(Service *s, ServiceState state) { cgroup_bonding_trim_list(UNIT(s)->cgroup_bondings, true); 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_struct(LOG_DEBUG, + "UNIT=%s", UNIT(s)->id, + "MESSAGE=%s changed %s -> %s", UNIT(s)->id, + service_state_to_string(old_state), + service_state_to_string(state), + NULL); unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS); s->reload_result = SERVICE_SUCCESS; @@ -1769,7 +1800,8 @@ static int service_spawn( goto fail; } - if (!(our_env = new0(char*, 4))) { + our_env = new0(char*, 5); + if (!our_env) { r = -ENOMEM; goto fail; } @@ -1792,10 +1824,14 @@ static int service_spawn( goto fail; } - if (!(final_env = strv_env_merge(2, - UNIT(s)->manager->environment, - our_env, - NULL))) { + if (s->meta.manager->running_as != SYSTEMD_SYSTEM) + if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) { + r = -ENOMEM; + goto fail; + } + + final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL); + if (!final_env) { r = -ENOMEM; goto fail; } @@ -1819,7 +1855,6 @@ static int service_spawn( if (r < 0) goto fail; - if ((r = unit_watch_pid(UNIT(s), pid)) < 0) /* FIXME: we need to do something here */ goto fail; @@ -1902,7 +1937,12 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) (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_ABORT && (s->result == SERVICE_FAILURE_SIGNAL || - s->result == SERVICE_FAILURE_CORE_DUMP)))) { + 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))) + ) { r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch); if (r < 0) @@ -2493,7 +2533,7 @@ static int service_start(Unit *u) { /* Make sure we don't enter a busy loop of some kind. */ r = service_start_limit_test(s); if (r < 0) { - service_notify_sockets_dead(s, true); + service_enter_dead(s, SERVICE_FAILURE_START_LIMIT, false); return r; } @@ -2874,7 +2914,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { assert(s); assert(pid >= 0); - if (UNIT(s)->fragment_path ? is_clean_exit(code, status) : is_clean_exit_lsb(code, status)) + if (UNIT(s)->fragment_path ? is_clean_exit(code, status, &s->success_status) : + is_clean_exit_lsb(code, status, &s->success_status)) f = SERVICE_SUCCESS; else if (code == CLD_EXITED) f = SERVICE_FAILURE_EXIT_CODE; @@ -2906,8 +2947,16 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { 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(f == SERVICE_SUCCESS ? LOG_DEBUG : LOG_NOTICE, + "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)), + "UNIT=%s", u->id, + "EXIT_CODE=%s", sigchld_code_to_string(code), + "EXIT_STATUS=%i", status, + NULL); if (f != SERVICE_SUCCESS) s->result = f; @@ -2945,12 +2994,10 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { else service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); break; - } else { - assert(s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY); - - /* Fall through */ } + /* Fall through */ + case SERVICE_RUNNING: service_enter_running(s, f); break; @@ -3020,7 +3067,9 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { break; case SERVICE_START: - assert(s->type == SERVICE_FORKING); + if (s->type != SERVICE_FORKING) + /* Maybe spurious event due to a reload that changed the type? */ + break; if (f != SERVICE_SUCCESS) { service_enter_signal(s, SERVICE_FINAL_SIGTERM, f); @@ -3413,7 +3462,7 @@ static int service_enumerate(Manager *m) { assert(m); - if (m->running_as != MANAGER_SYSTEM) + if (m->running_as != SYSTEMD_SYSTEM) return 0; zero(runlevel_services); @@ -3805,7 +3854,8 @@ static const char* const service_result_table[_SERVICE_RESULT_MAX] = { [SERVICE_FAILURE_EXIT_CODE] = "exit-code", [SERVICE_FAILURE_SIGNAL] = "signal", [SERVICE_FAILURE_CORE_DUMP] = "core-dump", - [SERVICE_FAILURE_WATCHDOG] = "watchdog" + [SERVICE_FAILURE_WATCHDOG] = "watchdog", + [SERVICE_FAILURE_START_LIMIT] = "start-limit" }; DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult); @@ -3820,6 +3870,8 @@ DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction); const UnitVTable service_vtable = { .object_size = sizeof(Service), + .exec_context_offset = offsetof(Service, exec_context), + .sections = "Unit\0" "Service\0"