X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=service.c;h=bf91561901f03d3fb8c23769049148962fdaeefa;hp=37d4e9c381df23e95b6dbdfedfadb4f6aed33096;hb=1b00a255225bd65bcc3f6257bd4b1e2089f231b4;hpb=6542952f8bece780ddf560499e1be9b35c690d26 diff --git a/service.c b/service.c index 37d4e9c38..bf9156190 100644 --- a/service.c +++ b/service.c @@ -37,17 +37,37 @@ #define NEWLINES "\n\r" #define LINE_MAX 4096 -static const char * const rcnd_table[] = { - "/rc0.d", SPECIAL_RUNLEVEL0_TARGET, - "/rc1.d", SPECIAL_RUNLEVEL1_TARGET, - "/rc2.d", SPECIAL_RUNLEVEL2_TARGET, - "/rc3.d", SPECIAL_RUNLEVEL3_TARGET, - "/rc4.d", SPECIAL_RUNLEVEL4_TARGET, - "/rc5.d", SPECIAL_RUNLEVEL5_TARGET, - "/rc6.d", SPECIAL_RUNLEVEL6_TARGET, - "/boot.d", SPECIAL_BASIC_TARGET +typedef enum RunlevelType { + RUNLEVEL_UP, + RUNLEVEL_DOWN, + RUNLEVEL_BASIC +} RunlevelType; + +static const struct { + const char *path; + const char *target; + const RunlevelType type; +} rcnd_table[] = { + /* Standard SysV runlevels */ + { "rc0.d", SPECIAL_RUNLEVEL0_TARGET, RUNLEVEL_DOWN }, + { "rc1.d", SPECIAL_RUNLEVEL1_TARGET, RUNLEVEL_UP }, + { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, + { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, + { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, + { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, + { "rc6.d", SPECIAL_RUNLEVEL6_TARGET, RUNLEVEL_DOWN }, + + /* SuSE style boot.d */ + { "boot.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, + + /* Debian style rcS.d */ + { "rcS.d", SPECIAL_BASIC_TARGET, RUNLEVEL_BASIC }, }; +#define RUNLEVELS_UP "12345" +/* #define RUNLEVELS_DOWN "06" */ +/* #define RUNLEVELS_BOOT "bBsS" */ + static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = { [SERVICE_DEAD] = UNIT_INACTIVE, [SERVICE_START_PRE] = UNIT_ACTIVATING, @@ -273,66 +293,6 @@ static int sysv_exec_commands(Service *s) { return 0; } -static int priority_from_rcd(Service *s, const char *init_script) { - char **p; - unsigned i; - - STRV_FOREACH(p, UNIT(s)->meta.manager->sysvrcnd_path) - for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { - char *path; - DIR *d; - struct dirent *de; - - if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) - return -ENOMEM; - - d = opendir(path); - free(path); - - if (!d) { - if (errno != ENOENT) - log_warning("opendir() failed on %s: %s", path, strerror(errno)); - - continue; - } - - while ((de = readdir(d))) { - int a, b; - - if (ignore_file(de->d_name)) - continue; - - if (de->d_name[0] != 'S') - continue; - - if (strlen(de->d_name) < 4) - continue; - - if (!streq(de->d_name + 3, init_script)) - continue; - - /* Yay, we found it! Now decode the priority */ - - a = undecchar(de->d_name[1]); - b = undecchar(de->d_name[2]); - - if (a < 0 || b < 0) - continue; - - s->sysv_start_priority = a*10 + b; - - log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, UNIT(s)->meta.id); - - closedir(d); - return 0; - } - - closedir(d); - } - - return 0; -} - static int service_load_sysv_path(Service *s, const char *path) { FILE *f; Unit *u; @@ -414,9 +374,12 @@ static int service_load_sysv_path(Service *s, const char *path) { continue; } + /* A start priority gathered from the + * 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); - else + else if (s->sysv_start_priority < 0) s->sysv_start_priority = start_priority; char_array_0(runlevels); @@ -434,7 +397,6 @@ static int service_load_sysv_path(Service *s, const char *path) { s->sysv_runlevels = d; } - } else if (startswith(t, "description:")) { size_t k = strlen(t); @@ -629,25 +591,10 @@ static int service_load_sysv_path(Service *s, const char *path) { } } - /* If init scripts have no LSB header, then we enforce the - * ordering via the chkconfig priorities. We try to determine - * a priority for *all* init scripts here, since they are - * needed as soon as at least one non-LSB script is used. */ - - if (s->sysv_start_priority < 0) { - log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", u->meta.id); - - if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0) - goto finish; - - if (s->sysv_start_priority < 0) - log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", u->meta.id); - } - if ((r = sysv_exec_commands(s)) < 0) goto finish; - if (!s->sysv_runlevels || chars_intersect("12345", s->sysv_runlevels)) { + if (!s->sysv_runlevels || chars_intersect(RUNLEVELS_UP, s->sysv_runlevels)) { /* If there a runlevels configured for this service * but none of the standard ones, then we assume this * is some special kind of service (which might be @@ -657,14 +604,14 @@ static int service_load_sysv_path(Service *s, const char *path) { if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0 || (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL, true)) < 0) goto finish; - } + + } else + /* Don't timeout special services during boot (like fsck) */ + s->timeout_usec = 0; /* Special setting for all SysV services */ s->valid_no_process = true; - - /* Don't timeout special services during boot (like fsck) */ - if (s->sysv_runlevels && !chars_intersect("12345", s->sysv_runlevels)) - s->timeout_usec = -1; + s->kill_mode = KILL_PROCESS_GROUP; u->meta.load_state = UNIT_LOADED; r = 0; @@ -694,8 +641,26 @@ static int service_load_sysv_name(Service *s, const char *name) { path[strlen(path)-8] = 0; r = service_load_sysv_path(s, path); + + if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { + /* Try Debian style .sh source'able init scripts */ + strcat(path, ".sh"); + r = service_load_sysv_path(s, path); + } + free(path); + if (r >= 0 && UNIT(s)->meta.load_state == UNIT_STUB) { + /* Try Suse style boot.xxxx init scripts */ + + if (asprintf(&path, "%s/boot.%s", *p, name) < 0) + return -ENOMEM; + + path[strlen(path)-8] = 0; + r = service_load_sysv_path(s, path); + free(path); + } + if (r < 0) return r; @@ -875,7 +840,7 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) { if (!s->exec_command[c]) continue; - fprintf(f, "%s→ %s:\n", + fprintf(f, "%s-> %s:\n", prefix, service_exec_command_to_string(c)); exec_command_dump_list(s->exec_command[c], f, prefix2); @@ -1069,7 +1034,7 @@ static void service_set_state(Service *s, ServiceState state) { service_close_socket_fd(s); if (old_state != state) - log_debug("%s changed %s → %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state)); + log_debug("%s changed %s -> %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state)); unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]); } @@ -1093,13 +1058,17 @@ static int service_coldplug(Unit *u) { 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 ((r = unit_watch_timer(UNIT(s), - s->deserialized_state == SERVICE_AUTO_RESTART ? - s->restart_usec : - s->timeout_usec, - &s->timer_watch)) < 0) - return r; + s->deserialized_state == SERVICE_AUTO_RESTART) { + + if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_usec > 0) { + usec_t k; + + k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_usec; + + if ((r = unit_watch_timer(UNIT(s), k, &s->timer_watch)) < 0) + return r; + } + } if ((s->deserialized_state == SERVICE_START && (s->type == SERVICE_FORKING || @@ -1222,7 +1191,7 @@ static int service_spawn( goto fail; } - if (timeout) { + if (timeout && s->timeout_usec) { if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) goto fail; } else @@ -1237,6 +1206,7 @@ static int service_spawn( argv, &s->exec_context, fds, n_fds, + s->meta.manager->environment, apply_permissions, apply_chroot, UNIT(s)->meta.manager->confirm_spawn, @@ -1314,6 +1284,7 @@ static void service_enter_dead(Service *s, bool success, bool allow_restart) { s->failure = true; if (allow_restart && + s->allow_restart && (s->restart == SERVICE_RESTART_ALWAYS || (s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) { @@ -1408,9 +1379,10 @@ static void service_enter_signal(Service *s, ServiceState state, bool success) { } } - if (sent) { - if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) - goto fail; + if (sent && (s->main_pid > 0 || s->control_pid > 0)) { + if (s->timeout_usec > 0) + if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) + goto fail; service_set_state(s, state); } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL) @@ -1716,6 +1688,7 @@ static int service_start(Unit *u) { s->failure = false; s->main_pid_known = false; + s->allow_restart = true; service_enter_start_pre(s); return 0; @@ -1749,6 +1722,10 @@ static int service_stop(Unit *u) { assert(s->state == SERVICE_RUNNING || s->state == SERVICE_EXITED); + /* This is a user request, so don't do restarts on this + * shutdown. */ + s->allow_restart = false; + service_enter_stop(s, true); return 0; } @@ -1794,7 +1771,7 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) { * commands attached here, we will start from the first one * again */ if (s->control_command_id >= 0) - unit_serialize_item(u, f, "control-command", mount_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; @@ -1913,7 +1890,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) { assert(s); assert(pid >= 0); - success = code == CLD_EXITED && status == 0; + success = is_clean_exit(code, status); s->failure = s->failure || !success; if (s->main_pid == pid) { @@ -2176,12 +2153,12 @@ static int service_enumerate(Manager *m) { assert(m); STRV_FOREACH(p, m->sysvrcnd_path) - for (i = 0; i < ELEMENTSOF(rcnd_table); i += 2) { + for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { struct dirent *de; free(path); path = NULL; - if (asprintf(&path, "%s/%s", *p, rcnd_table[i]) < 0) { + if (asprintf(&path, "%s/%s", *p, rcnd_table[i].path) < 0) { r = -ENOMEM; goto finish; } @@ -2198,6 +2175,7 @@ static int service_enumerate(Manager *m) { while ((de = readdir(d))) { Unit *service; + int a, b; if (ignore_file(de->d_name)) continue; @@ -2208,9 +2186,15 @@ static int service_enumerate(Manager *m) { if (strlen(de->d_name) < 4) continue; + a = undecchar(de->d_name[1]); + b = undecchar(de->d_name[2]); + + if (a < 0 || b < 0) + continue; + free(fpath); fpath = NULL; - if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i], de->d_name) < 0) { + if (asprintf(&fpath, "%s/%s/%s", *p, rcnd_table[i].path, de->d_name) < 0) { r = -ENOMEM; goto finish; } @@ -2224,31 +2208,47 @@ static int service_enumerate(Manager *m) { } free(name); - name = NULL; - if (asprintf(&name, "%s.service", de->d_name+3) < 0) { + if (!(name = new(char, strlen(de->d_name) - 3 + 8 + 1))) { r = -ENOMEM; goto finish; } - if ((r = manager_load_unit(m, name, NULL, &service)) < 0) - goto finish; + if (startswith(de->d_name+3, "boot.")) + /* Drop SuSE-style boot. prefix */ + strcpy(stpcpy(name, de->d_name + 3 + 5), ".service"); + else if (endswith(de->d_name+3, ".sh")) + /* Drop Debian-style .sh suffix */ + strcpy(stpcpy(name, de->d_name + 3) - 3, ".service"); + else + /* Normal init scripts */ + strcpy(stpcpy(name, de->d_name + 3), ".service"); + + if ((r = manager_load_unit_prepare(m, name, NULL, &service)) < 0) { + log_warning("Failed to prepare unit %s: %s", name, strerror(-r)); + continue; + } + + if (de->d_name[0] == 'S' && + (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_BASIC)) + SERVICE(service)->sysv_start_priority = + MAX(a*10 + b, SERVICE(service)->sysv_start_priority); + + manager_dispatch_load_queue(m); + service = unit_follow_merge(service); if (de->d_name[0] == 'S') { Unit *runlevel_target; - if ((r = manager_load_unit(m, rcnd_table[i+1], NULL, &runlevel_target)) < 0) + if ((r = manager_load_unit(m, rcnd_table[i].target, NULL, &runlevel_target)) < 0) goto finish; if ((r = unit_add_dependency(runlevel_target, UNIT_WANTS, service, true)) < 0) goto finish; - if ((r = unit_add_dependency(runlevel_target, UNIT_AFTER, service, true)) < 0) + if ((r = unit_add_dependency(service, UNIT_BEFORE, runlevel_target, true)) < 0) goto finish; - } else if (de->d_name[0] == 'K' && - (streq(rcnd_table[i+1], SPECIAL_RUNLEVEL0_TARGET) || - streq(rcnd_table[i+1], SPECIAL_RUNLEVEL6_TARGET))) { - + } else if (de->d_name[0] == 'K' && rcnd_table[i].type == RUNLEVEL_DOWN) { Unit *shutdown_target; /* We honour K links only for @@ -2265,10 +2265,10 @@ static int service_enumerate(Manager *m) { if ((r = manager_load_unit(m, SPECIAL_SHUTDOWN_TARGET, NULL, &shutdown_target)) < 0) goto finish; - if ((r = unit_add_dependency(shutdown_target, UNIT_CONFLICTS, service, true)) < 0) + if ((r = unit_add_dependency(service, UNIT_CONFLICTS, shutdown_target, true)) < 0) goto finish; - if ((r = unit_add_dependency(shutdown_target, UNIT_BEFORE, service, true)) < 0) + if ((r = unit_add_dependency(service, UNIT_BEFORE, shutdown_target, true)) < 0) goto finish; } } @@ -2280,7 +2280,9 @@ finish: free(path); free(fpath); free(name); - closedir(d); + + if (d) + closedir(d); return r; }