X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fservice.c;h=e64d289fede715dd13b1829c5a9fcd963c725e64;hp=646c0939067f8d57ef2727c0d5f082676ad63e06;hb=8725d60ae4f7a8471aa8a0207fa105e335d069a6;hpb=a17204af0e950be7a5199db62ef400814e29aa3c diff --git a/src/service.c b/src/service.c index 646c09390..e64d289fe 100644 --- a/src/service.c +++ b/src/service.c @@ -65,7 +65,7 @@ static const struct { { "boot.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, #endif -#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_FRUGALWARE) || defined(TARGET_ANGSTROM) +#if defined(TARGET_DEBIAN) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM) /* Debian style rcS.d */ { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT }, #endif @@ -121,8 +121,6 @@ static void service_init(Unit *u) { 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); @@ -635,7 +633,7 @@ 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); @@ -783,19 +781,6 @@ static int service_load_sysv_path(Service *s, const char *path) { free(short_description); short_description = d; - } else if (startswith_no_case(t, "X-Interactive:")) { - int b; - - if ((b = parse_boolean(strstrip(t+14))) < 0) { - log_warning("[%s:%u] Couldn't parse interactive flag. Ignoring.", path, line); - continue; - } - - if (b) - s->exec_context.std_input = EXEC_INPUT_TTY; - else - s->exec_context.std_input = EXEC_INPUT_NULL; - } else if (state == LSB_DESCRIPTION) { if (startswith(l, "#\t") || startswith(l, "# ")) { @@ -805,7 +790,7 @@ 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); @@ -844,10 +829,12 @@ 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 = !s->pid_file; + s->guess_main_pid = false; 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 : s->meta.manager->default_std_output; + + if (s->meta.manager->sysv_console) + s->exec_context.std_output = EXEC_OUTPUT_TTY; + s->exec_context.kill_mode = KILL_PROCESS; /* We use the long description only if @@ -921,7 +908,8 @@ 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")); @@ -942,7 +930,8 @@ 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 */ @@ -956,7 +945,8 @@ 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 */ @@ -1110,6 +1100,24 @@ static int service_add_default_dependencies(Service *s) { return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); } +static void service_fix_output(Service *s) { + assert(s); + + /* If nothing has been explicitly configured, patch default + * output in. If input is socket/tty we avoid this however, + * since in that case we want output to default to the same + * place as we read input from. */ + + if (s->exec_context.std_error == EXEC_OUTPUT_INHERIT && + s->exec_context.std_output == EXEC_OUTPUT_INHERIT && + s->exec_context.std_input == EXEC_INPUT_NULL) + s->exec_context.std_error = s->meta.manager->default_std_error; + + if (s->exec_context.std_output == EXEC_OUTPUT_INHERIT && + s->exec_context.std_input == EXEC_INPUT_NULL) + s->exec_context.std_output = s->meta.manager->default_std_output; +} + static int service_load(Unit *u) { int r; Service *s = SERVICE(u); @@ -1138,6 +1146,8 @@ static int service_load(Unit *u) { /* This is a new unit? Then let's add in some extras */ if (u->meta.load_state == UNIT_LOADED) { + service_fix_output(s); + if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) return r; @@ -1272,21 +1282,22 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { free(p2); } -static int service_load_pid_file(Service *s) { +static int service_load_pid_file(Service *s, bool warn_if_missing) { char *k; int r; pid_t pid; assert(s); - if (s->main_pid_known) - return 0; - if (!s->pid_file) - return 0; + return -ENOENT; - if ((r = read_one_line_file(s->pid_file, &k)) < 0) + if ((r = read_one_line_file(s->pid_file, &k)) < 0) { + if (warn_if_missing) + log_warning("Failed to read PID file %s after %s. The service might be broken.", + s->pid_file, service_state_to_string(s->state)); return r; + } r = parse_pid(k, &pid); free(k); @@ -1300,6 +1311,16 @@ static int service_load_pid_file(Service *s) { return -ESRCH; } + if (s->main_pid_known) { + if (pid == s->main_pid) + return 0; + + log_debug("Main PID changing: %lu -> %lu", + (unsigned long) s->main_pid, (unsigned long) pid); + service_unwatch_main_pid(s); + s->main_pid_known = false; + } + if ((r = service_set_main_pid(s, pid)) < 0) return r; @@ -1725,6 +1746,7 @@ static int service_spawn( apply_tty_stdin, s->meta.manager->confirm_spawn, s->meta.cgroup_bondings, + s->meta.cgroup_attributes, &pid); if (r < 0) @@ -2584,6 +2606,11 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { success = is_clean_exit(code, status); if (s->main_pid == pid) { + /* Forking services may occasionally move to a new PID. + * As long as they update the PID file before exiting the old + * PID, they're fine. */ + if (service_load_pid_file(s, false) == 0) + return; s->main_pid = 0; exec_status_exit(&s->main_exec_status, &s->exec_context, pid, code, status); @@ -2714,7 +2741,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { * START_POST script */ if (success) { - service_load_pid_file(s); + service_load_pid_file(s, !s->exec_command[SERVICE_EXEC_START_POST]); service_search_main_pid(s); service_enter_start_post(s); @@ -2725,7 +2752,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { case SERVICE_START_POST: if (success) { - service_load_pid_file(s); + service_load_pid_file(s, true); service_search_main_pid(s); } @@ -2735,7 +2762,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { case SERVICE_RELOAD: if (success) { - service_load_pid_file(s); + service_load_pid_file(s, true); service_search_main_pid(s); } @@ -2965,6 +2992,72 @@ 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; @@ -2987,8 +3080,8 @@ 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; } @@ -3022,8 +3115,8 @@ 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 (!fpath) { r = -ENOMEM; goto finish; } @@ -3113,6 +3206,10 @@ static int service_enumerate(Manager *m) { r = 0; +#ifdef TARGET_SUSE + sysv_facility_in_insserv_conf (m); +#endif + finish: free(path); free(fpath); @@ -3372,6 +3469,10 @@ 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,