X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemctl.c;h=63e74d904a93d0cceac7c3ac3d80fd17080b3b70;hp=c8384ff530102b26a03c45ccb88c09d135f4fc3c;hb=1de4d79bf554946f486adf56ed765c5335816f15;hpb=b9c0d4415b8cd6135321185b6febfdd1366a477c diff --git a/src/systemctl.c b/src/systemctl.c index c8384ff53..63e74d904 100644 --- a/src/systemctl.c +++ b/src/systemctl.c @@ -32,6 +32,7 @@ #include #include #include +#include #include @@ -59,11 +60,12 @@ static const char *arg_type = NULL; static char **arg_property = NULL; static bool arg_all = false; -static bool arg_fail = false; -static bool arg_session = false; +static const char *arg_job_mode = "replace"; +static bool arg_user = false; static bool arg_global = false; static bool arg_immediate = false; static bool arg_no_block = false; +static bool arg_no_pager = false; static bool arg_no_wtmp = false; static bool arg_no_sync = false; static bool arg_no_wall = false; @@ -73,7 +75,12 @@ static bool arg_quiet = false; static bool arg_full = false; static bool arg_force = false; static bool arg_defaults = false; +static bool arg_ask_password = false; +static bool arg_failed = false; static char **arg_wall = NULL; +static const char *arg_kill_who = NULL; +static const char *arg_kill_mode = NULL; +static int arg_signal = SIGTERM; static usec_t arg_when = 0; static enum action { ACTION_INVALID, @@ -81,6 +88,8 @@ static enum action { ACTION_HALT, ACTION_POWEROFF, ACTION_REBOOT, + ACTION_KEXEC, + ACTION_EXIT, ACTION_RUNLEVEL2, ACTION_RUNLEVEL3, ACTION_RUNLEVEL4, @@ -102,17 +111,103 @@ static enum dot { static bool private_bus = false; +static pid_t pager_pid = 0; +static pid_t agent_pid = 0; + static int daemon_reload(DBusConnection *bus, char **args, unsigned n); +static void pager_open(void); static bool on_tty(void) { static int t = -1; + /* Note that this is invoked relatively early, before we start + * the pager. That means the value we return reflects whether + * we originally were started on a tty, not if we currently + * are. But this is intended, since we want colour and so on + * when run in our own pager. */ + if (_unlikely_(t < 0)) t = isatty(STDOUT_FILENO) > 0; return t; } +static void spawn_ask_password_agent(void) { + pid_t parent; + + if (agent_pid > 0) + return; + + /* We check STDIN here, not STDOUT, since this is about input, + * not output */ + if (!isatty(STDIN_FILENO)) + return; + + if (!arg_ask_password) + return; + + if (arg_user) + return; + + parent = getpid(); + + /* Spawns a temporary TTY agent, making sure it goes away when + * we go away */ + + if ((agent_pid = fork()) < 0) + return; + + if (agent_pid == 0) { + /* In the child */ + + int fd; + bool stdout_is_tty, stderr_is_tty; + + /* Make sure the agent goes away when the parent dies */ + if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) + _exit(EXIT_FAILURE); + + /* Check whether our parent died before we were able + * to set the death signal */ + if (getppid() != parent) + _exit(EXIT_SUCCESS); + + /* Don't leak fds to the agent */ + close_all_fds(NULL, 0); + + stdout_is_tty = isatty(STDOUT_FILENO); + stderr_is_tty = isatty(STDERR_FILENO); + + if (!stdout_is_tty || !stderr_is_tty) { + /* Detach from stdout/stderr. and reopen + * /dev/tty for them. This is important to + * ensure that when systemctl is started via + * popen() or a similar call that expects to + * read EOF we actually do generate EOF and + * not delay this indefinitely by because we + * keep an unused copy of stdin around. */ + if ((fd = open("/dev/tty", O_WRONLY)) < 0) { + log_error("Failed to open /dev/tty: %m"); + _exit(EXIT_FAILURE); + } + + if (!stdout_is_tty) + dup2(fd, STDOUT_FILENO); + + if (!stderr_is_tty) + dup2(fd, STDERR_FILENO); + + if (fd > 2) + close(fd); + } + + execl(SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, "--watch", NULL); + + log_error("Unable to execute agent: %m"); + _exit(EXIT_FAILURE); + } +} + static const char *ansi_highlight(bool b) { if (!on_tty()) @@ -193,6 +288,7 @@ static void warn_wall(enum action action) { [ACTION_HALT] = "The system is going down for system halt NOW!", [ACTION_REBOOT] = "The system is going down for reboot NOW!", [ACTION_POWEROFF] = "The system is going down for power-off NOW!", + [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!", [ACTION_RESCUE] = "The system is going down to rescue mode NOW!", [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!" }; @@ -209,7 +305,7 @@ static void warn_wall(enum action action) { } if (*p) { - utmp_wall(p); + utmp_wall(p, NULL); free(p); return; } @@ -220,7 +316,7 @@ static void warn_wall(enum action action) { if (!table[action]) return; - utmp_wall(table[action]); + utmp_wall(table[action], NULL); } struct unit_info { @@ -253,16 +349,19 @@ static int compare_unit_info(const void *a, const void *b) { return strcasecmp(u->id, v->id); } -static bool output_show_job(const struct unit_info *u) { +static bool output_show_unit(const struct unit_info *u) { const char *dot; + if (arg_failed) + return streq(u->active_state, "failed"); + return (!arg_type || ((dot = strrchr(u->id, '.')) && streq(dot+1, arg_type))) && (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0); } static void output_units_list(const struct unit_info *unit_infos, unsigned c) { - unsigned active_len, sub_len, job_len; + unsigned active_len, sub_len, job_len, n_shown = 0; const struct unit_info *u; active_len = sizeof("ACTIVE")-1; @@ -270,7 +369,7 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { job_len = sizeof("JOB")-1; for (u = unit_infos; u < unit_infos + c; u++) { - if (!output_show_job(u)) + if (!output_show_unit(u)) continue; active_len = MAX(active_len, strlen(u->active_state)); @@ -294,9 +393,11 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { const char *on_loaded, *off_loaded; const char *on_active, *off_active; - if (!output_show_job(u)) + if (!output_show_unit(u)) continue; + n_shown++; + if (!streq(u->load_state, "loaded") && !streq(u->load_state, "banned")) { on_loaded = ansi_highlight(true); @@ -349,9 +450,9 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { "JOB = Pending job for the unit.\n"); if (arg_all) - printf("\n%u units listed.\n", c); + printf("\n%u units listed.\n", n_shown); else - printf("\n%u units listed. Pass --all to see inactive units, too.\n", c); + printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown); } } @@ -367,6 +468,8 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { assert(bus); + pager_open(); + if (!(m = dbus_message_new_method_call( "org.freedesktop.systemd1", "/org/freedesktop/systemd1", @@ -439,8 +542,10 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { c++; } - qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info); - output_units_list(unit_infos, c); + if (c > 0) { + qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info); + output_units_list(unit_infos, c); + } r = 0; @@ -713,6 +818,8 @@ static int list_jobs(DBusConnection *bus, char **args, unsigned n) { assert(bus); + pager_open(); + if (!(m = dbus_message_new_method_call( "org.freedesktop.systemd1", "/org/freedesktop/systemd1", @@ -1014,7 +1121,7 @@ finish: typedef struct WaitData { Set *set; - bool failed; + char *result; } WaitData; static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { @@ -1038,26 +1145,52 @@ static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *me } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { uint32_t id; - const char *path; + const char *path, *result; dbus_bool_t success = true; - if (!dbus_message_get_args(message, &error, - DBUS_TYPE_UINT32, &id, - DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_BOOLEAN, &success, - DBUS_TYPE_INVALID)) - log_error("Failed to parse message: %s", bus_error_message(&error)); - else { + if (dbus_message_get_args(message, &error, + DBUS_TYPE_UINT32, &id, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_STRING, &result, + DBUS_TYPE_INVALID)) { + char *p; + + if ((p = set_remove(d->set, (char*) path))) + free(p); + + if (*result) + d->result = strdup(result); + + goto finish; + } +#ifndef LEGACY + dbus_error_free(&error); + + if (dbus_message_get_args(message, &error, + DBUS_TYPE_UINT32, &id, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_BOOLEAN, &success, + DBUS_TYPE_INVALID)) { char *p; + /* Compatibility with older systemd versions < + * 19 during upgrades. This should be dropped + * one day */ + if ((p = set_remove(d->set, (char*) path))) free(p); if (!success) - d->failed = true; + d->result = strdup("failed"); + + goto finish; } +#endif + + log_error("Failed to parse message: %s", bus_error_message(&error)); } +finish: dbus_error_free(&error); return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; } @@ -1098,7 +1231,6 @@ static int wait_for_jobs(DBusConnection *bus, Set *s) { zero(d); d.set = s; - d.failed = false; if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) { log_error("Failed to add filter."); @@ -1110,10 +1242,27 @@ static int wait_for_jobs(DBusConnection *bus, Set *s) { dbus_connection_read_write_dispatch(bus, -1)) ; - if (!arg_quiet && d.failed) - log_error("Job failed, see system logs for details."); + if (!arg_quiet && d.result) { + if (streq(d.result, "timeout")) + log_error("Job timed out."); + else if (streq(d.result, "canceled")) + log_error("Job canceled."); + else if (streq(d.result, "dependency")) + log_error("A dependency job failed. See system logs for details."); + else if (!streq(d.result, "done") && !streq(d.result, "skipped")) + log_error("Job failed. See system logs and 'systemctl status' for details."); + } + + if (streq_ptr(d.result, "timeout")) + r = -ETIME; + else if (streq_ptr(d.result, "canceled")) + r = -ECANCELED; + else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped")) + r = -EIO; + else + r = 0; - r = d.failed ? -EIO : 0; + free(d.result); finish: /* This is slightly dirty, since we don't undo the filter registration. */ @@ -1183,7 +1332,7 @@ static int start_unit_one( if (need_daemon_reload(bus, name)) log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.", - arg_session ? "--session" : "--system"); + arg_user ? "--user" : "--system"); if (!arg_no_block) { char *p; @@ -1220,12 +1369,16 @@ static enum action verb_to_action(const char *verb) { return ACTION_POWEROFF; else if (streq(verb, "reboot")) return ACTION_REBOOT; + else if (streq(verb, "kexec")) + return ACTION_KEXEC; else if (streq(verb, "rescue")) return ACTION_RESCUE; else if (streq(verb, "emergency")) return ACTION_EMERGENCY; else if (streq(verb, "default")) return ACTION_DEFAULT; + else if (streq(verb, "exit")) + return ACTION_EXIT; else return ACTION_INVALID; } @@ -1236,13 +1389,15 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) { [ACTION_HALT] = SPECIAL_HALT_TARGET, [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET, [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET, + [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET, [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET, [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET, [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET, [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET, [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET, [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET, - [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET + [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET, + [ACTION_EXIT] = SPECIAL_EXIT_TARGET }; int r, ret = 0; @@ -1255,24 +1410,29 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) { assert(bus); + spawn_ask_password_agent(); + if (arg_action == ACTION_SYSTEMCTL) { method = streq(args[0], "stop") ? "StopUnit" : streq(args[0], "reload") ? "ReloadUnit" : streq(args[0], "restart") ? "RestartUnit" : + streq(args[0], "try-restart") || streq(args[0], "condrestart") ? "TryRestartUnit" : + streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" : + streq(args[0], "reload-or-try-restart") || + streq(args[0], "condreload") || + streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" : "StartUnit"; mode = (streq(args[0], "isolate") || streq(args[0], "rescue") || - streq(args[0], "emergency")) ? "isolate" : - arg_fail ? "fail" : - "replace"; + streq(args[0], "emergency")) ? "isolate" : arg_job_mode; one_name = table[verb_to_action(args[0])]; @@ -1337,6 +1497,14 @@ static int start_special(DBusConnection *bus, char **args, unsigned n) { assert(bus); assert(args); + if (arg_force && + (streq(args[0], "halt") || + streq(args[0], "poweroff") || + streq(args[0], "reboot") || + streq(args[0], "kexec") || + streq(args[0], "exit"))) + return daemon_reload(bus, args, n); + r = start_unit(bus, args, n); if (r >= 0) @@ -1389,6 +1557,7 @@ static int check_unit(DBusConnection *bus, char **args, unsigned n) { puts("unknown"); dbus_error_free(&error); + dbus_message_unref(m); continue; } @@ -1467,7 +1636,74 @@ finish: return r; } +static int kill_unit(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + int r = 0; + DBusError error; + unsigned i; + + assert(bus); + assert(args); + + dbus_error_init(&error); + + if (!arg_kill_who) + arg_kill_who = "all"; + + if (!arg_kill_mode) + arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process"; + + for (i = 1; i < n; i++) { + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "KillUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &args[i], + DBUS_TYPE_STRING, &arg_kill_who, + DBUS_TYPE_STRING, &arg_kill_mode, + DBUS_TYPE_INT32, &arg_signal, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", bus_error_message(&error)); + dbus_error_free(&error); + r = -EIO; + } + + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + m = reply = NULL; + } + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + typedef struct ExecStatusInfo { + char *name; + char *path; char **argv; @@ -1485,6 +1721,7 @@ typedef struct ExecStatusInfo { static void exec_status_info_free(ExecStatusInfo *i) { assert(i); + free(i->name); free(i->path); strv_free(i->argv); free(i); @@ -1568,6 +1805,7 @@ typedef struct UnitStatusInfo { const char *sub_state; const char *description; + const char *following; const char *path; const char *default_control_group; @@ -1629,6 +1867,9 @@ static void print_status_info(UnitStatusInfo *i) { printf("\n"); + if (i->following) + printf("\t Follow: unit currently follows state of %s\n", i->following); + if (streq_ptr(i->load_state, "failed") || streq_ptr(i->load_state, "banned")) { on = ansi_highlight(true); @@ -1675,17 +1916,17 @@ static void print_status_info(UnitStatusInfo *i) { s2 = format_timestamp(since2, sizeof(since2), timestamp); if (s1) - printf(" since [%s; %s]\n", s2, s1); + printf(" since %s; %s\n", s2, s1); else if (s2) - printf(" since [%s]\n", s2); + printf(" since %s\n", s2); else printf("\n"); if (i->sysfs_path) printf("\t Device: %s\n", i->sysfs_path); - else if (i->where) + if (i->where) printf("\t Where: %s\n", i->where); - else if (i->what) + if (i->what) printf("\t What: %s\n", i->what); if (i->accept) @@ -1693,15 +1934,31 @@ static void print_status_info(UnitStatusInfo *i) { LIST_FOREACH(exec, p, i->exec) { char *t; + bool good; /* Only show exited processes here */ if (p->code == 0) continue; t = strv_join(p->argv, " "); - printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code)); + printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t)); free(t); +#ifdef HAVE_SYSV_COMPAT + if (i->is_sysv) + good = is_clean_exit_lsb(p->code, p->status); + else +#endif + good = is_clean_exit(p->code, p->status); + + if (!good) { + on = ansi_highlight(true); + off = ansi_highlight(false); + } else + on = off = ""; + + printf("%s(code=%s, ", on, sigchld_code_to_string(p->code)); + if (p->code == CLD_EXITED) { const char *c; @@ -1716,7 +1973,10 @@ static void print_status_info(UnitStatusInfo *i) { } else printf("signal=%s", signal_to_string(p->status)); - printf(")\n"); + + printf(")%s\n", off); + + on = off = NULL; if (i->main_pid == p->pid && i->start_timestamp == p->start_timestamp && @@ -1800,7 +2060,7 @@ static void print_status_info(UnitStatusInfo *i) { printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n", ansi_highlight(true), ansi_highlight(false), - arg_session ? "--session" : "--system"); + arg_user ? "--user" : "--system"); } static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) { @@ -1841,6 +2101,8 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn i->where = s; else if (streq(name, "What")) i->what = s; + else if (streq(name, "Following")) + i->following = s; } break; @@ -1930,6 +2192,11 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn if (!(info = new0(ExecStatusInfo, 1))) return -ENOMEM; + if (!(info->name = strdup(name))) { + free(info); + return -ENOMEM; + } + if ((r = exec_status_info_deserialize(&sub, info)) < 0) { free(info); return r; @@ -2107,6 +2374,25 @@ static int print_property(const char *name, DBusMessageIter *iter) { return 0; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) { + DBusMessageIter sub, sub2; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + const char *path; + dbus_bool_t ignore; + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 && + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0) + printf("EnvironmentFile=%s (ignore=%s)\n", path, yes_no(ignore)); + + dbus_message_iter_next(&sub); + } + + return 0; + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) { DBusMessageIter sub, sub2; @@ -2199,7 +2485,7 @@ static int print_property(const char *name, DBusMessageIter *iter) { return 0; } -static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) { +static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) { DBusMessage *m = NULL, *reply = NULL; const char *interface = ""; int r; @@ -2299,7 +2585,8 @@ static int show_one(DBusConnection *bus, const char *path, bool show_properties, print_status_info(&info); if (!streq_ptr(info.active_state, "active") && - !streq_ptr(info.active_state, "reloading")) + !streq_ptr(info.active_state, "reloading") && + streq(verb, "status")) /* According to LSB: "program not running" */ r = 3; @@ -2334,11 +2621,14 @@ static int show(DBusConnection *bus, char **args, unsigned n) { show_properties = !streq(args[0], "status"); + if (show_properties) + pager_open(); + if (show_properties && n <= 1) { /* If not argument is specified inspect the manager * itself */ - ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line); + ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line); goto finish; } @@ -2472,7 +2762,7 @@ static int show(DBusConnection *bus, char **args, unsigned n) { goto finish; } - if ((r = show_one(bus, path, show_properties, &new_line)) != 0) + if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0) ret = r; dbus_message_unref(m); @@ -2527,11 +2817,12 @@ static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") || dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { uint32_t id; - const char *path; + const char *path, *result; if (!dbus_message_get_args(message, &error, DBUS_TYPE_UINT32, &id, DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_STRING, &result, DBUS_TYPE_INVALID)) log_error("Failed to parse message: %s", bus_error_message(&error)); else if (streq(dbus_message_get_member(message), "JobNew")) @@ -2717,6 +3008,8 @@ static int dump(DBusConnection *bus, char **args, unsigned n) { dbus_error_init(&error); + pager_open(); + if (!(m = dbus_message_new_method_call( "org.freedesktop.systemd1", "/org/freedesktop/systemd1", @@ -2962,12 +3255,16 @@ static int daemon_reload(DBusConnection *bus, char **args, unsigned n) { assert(arg_action == ACTION_SYSTEMCTL); method = - streq(args[0], "clear-jobs") || - streq(args[0], "cancel") ? "ClearJobs" : - streq(args[0], "daemon-reexec") ? "Reexecute" : - streq(args[0], "reset-failed") ? "ResetFailed" : - streq(args[0], "daemon-exit") ? "Exit" : - "Reload"; + streq(args[0], "clear-jobs") || + streq(args[0], "cancel") ? "ClearJobs" : + streq(args[0], "daemon-reexec") ? "Reexecute" : + streq(args[0], "reset-failed") ? "ResetFailed" : + streq(args[0], "halt") ? "Halt" : + streq(args[0], "poweroff") ? "PowerOff" : + streq(args[0], "reboot") ? "Reboot" : + streq(args[0], "kexec") ? "KExec" : + streq(args[0], "exit") ? "Exit" : + /* "daemon-reload" */ "Reload"; } if (!(m = dbus_message_new_method_call( @@ -3075,6 +3372,8 @@ static int show_enviroment(DBusConnection *bus, char **args, unsigned n) { dbus_error_init(&error); + pager_open(); + if (!(m = dbus_message_new_method_call( "org.freedesktop.systemd1", "/org/freedesktop/systemd1", @@ -3221,6 +3520,7 @@ typedef struct { static Hashmap *will_install = NULL, *have_installed = NULL; static Set *remove_symlinks_to = NULL; +static unsigned n_symlinks = 0; static void install_info_free(InstallInfo *i) { assert(i); @@ -3742,6 +4042,73 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo } if (!f) { +#if (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA)) && defined (HAVE_SYSV_COMPAT) + + if (endswith(i->name, ".service")) { + char *sysv; + bool exists; + + if (asprintf(&sysv, SYSTEM_SYSVINIT_PATH "/%s", i->name) < 0) { + log_error("Out of memory"); + return -ENOMEM; + } + + sysv[strlen(sysv) - sizeof(".service") + 1] = 0; + exists = access(sysv, F_OK) >= 0; + + if (exists) { + pid_t pid; + siginfo_t status; + + const char *argv[] = { + "/sbin/chkconfig", + NULL, + NULL, + NULL + }; + + log_info("%s is not a native service, redirecting to /sbin/chkconfig.", i->name); + + argv[1] = file_name_from_path(sysv); + argv[2] = + streq(verb, "enable") ? "on" : + streq(verb, "disable") ? "off" : "--level=3"; + + log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2])); + + if ((pid = fork()) < 0) { + log_error("Failed to fork: %m"); + free(sysv); + return -errno; + } else if (pid == 0) { + execv(argv[0], (char**) argv); + _exit(EXIT_FAILURE); + } + + free(sysv); + + if ((r = wait_for_terminate(pid, &status)) < 0) + return r; + + if (status.si_code == CLD_EXITED) { + + if (streq(verb, "is-enabled")) + return status.si_status == 0 ? 1 : 0; + + if (status.si_status == 0) + n_symlinks ++; + + return status.si_status == 0 ? 0 : -EINVAL; + + } else + return -EPROTO; + } + + free(sysv); + } + +#endif + log_error("Couldn't find %s.", i->name); return -ENOENT; } @@ -3753,6 +4120,9 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo return r; } + n_symlinks += strv_length(i->aliases); + n_symlinks += strv_length(i->wanted_by); + fclose(f); if ((r = install_info_symlink_alias(verb, i, config_path)) != 0) @@ -3772,13 +4142,13 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo static char *get_config_path(void) { - if (arg_session && arg_global) - return strdup(SESSION_CONFIG_UNIT_PATH); + if (arg_user && arg_global) + return strdup(USER_CONFIG_UNIT_PATH); - if (arg_session) { + if (arg_user) { char *p; - if (session_config_home(&p) < 0) + if (user_config_home(&p) < 0) return NULL; return p; @@ -3799,7 +4169,7 @@ static int enable_unit(DBusConnection *bus, char **args, unsigned n) { dbus_error_init(&error); zero(paths); - if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) { + if ((r = lookup_paths_init(&paths, arg_user ? MANAGER_USER : MANAGER_SYSTEM)) < 0) { log_error("Failed to determine lookup paths: %s", strerror(-r)); goto finish; } @@ -3832,6 +4202,8 @@ static int enable_unit(DBusConnection *bus, char **args, unsigned n) { goto finish; } + r = 0; + while ((i = hashmap_first(will_install))) { int q; @@ -3853,19 +4225,24 @@ static int enable_unit(DBusConnection *bus, char **args, unsigned n) { if (streq(verb, "is-enabled")) r = r > 0 ? 0 : -ENOENT; - else if (bus && - /* Don't try to reload anything if the user asked us to not do this */ - !arg_no_reload && - /* Don't try to reload anything when updating a unit globally */ - !arg_global && - /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */ - (arg_session || sd_booted() > 0) && - /* Don't try to reload anything if we are running in a chroot environment */ - (arg_session || running_in_chroot() <= 0) ) { - int q; + else { + if (n_symlinks <= 0) + log_warning("Unit files contain no applicable installation information. Ignoring."); + + if (bus && + /* Don't try to reload anything if the user asked us to not do this */ + !arg_no_reload && + /* Don't try to reload anything when updating a unit globally */ + !arg_global && + /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */ + (arg_user || sd_booted() > 0) && + /* Don't try to reload anything if we are running in a chroot environment */ + (arg_user || running_in_chroot() <= 0) ) { + int q; - if ((q = daemon_reload(bus, args, n)) < 0) - r = q; + if ((q = daemon_reload(bus, args, n)) < 0) + r = q; + } } finish: @@ -3885,26 +4262,36 @@ static int systemctl_help(void) { printf("%s [OPTIONS...] {COMMAND} ...\n\n" "Send control commands to or query the systemd manager.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " -t --type=TYPE List only units of a particular type\n" - " -p --property=NAME Show only properties by this name\n" - " -a --all Show all units/properties, including dead/empty ones\n" - " --full Don't ellipsize unit names on output\n" - " --fail When queueing a new job, fail if conflicting jobs are\n" - " pending\n" - " -q --quiet Suppress output\n" - " --no-block Do not wait until operation finished\n" - " --system Connect to system bus\n" - " --session Connect to session bus\n" - " --order When generating graph for dot, show only order\n" - " --require When generating graph for dot, show only requirement\n" - " --no-wall Don't send wall message before halt/power-off/reboot\n" - " --global Enable/disable unit files globally\n" - " --no-reload When enabling/disabling unit files, don't reload daemon\n" - " configuration\n" - " --force When enabling unit files, override existing symlinks\n" - " --defaults When disabling unit files, remove default symlinks only\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " -t --type=TYPE List only units of a particular type\n" + " -p --property=NAME Show only properties by this name\n" + " -a --all Show all units/properties, including dead/empty ones\n" + " --failed Show only failed units\n" + " --full Don't ellipsize unit names on output\n" + " --fail When queueing a new job, fail if conflicting jobs are\n" + " pending\n" + " --ignore-dependencies\n" + " When queueing a new job, ignore all its dependencies\n" + " -q --quiet Suppress output\n" + " --no-block Do not wait until operation finished\n" + " --no-pager Do not pipe output into a pager.\n" + " --system Connect to system manager\n" + " --user Connect to user service manager\n" + " --order When generating graph for dot, show only order\n" + " --require When generating graph for dot, show only requirement\n" + " --no-wall Don't send wall message before halt/power-off/reboot\n" + " --global Enable/disable unit files globally\n" + " --no-reload When enabling/disabling unit files, don't reload daemon\n" + " configuration\n" + " --no-ask-password\n" + " Do not ask for system passwords\n" + " --kill-mode=MODE How to send signal\n" + " --kill-who=WHO Who to send signal to\n" + " -s --signal=SIGNAL Which signal to send\n" + " -f --force When enabling unit files, override existing symlinks\n" + " When shutting down, execute action immediately\n" + " --defaults When disabling unit files, remove default symlinks only\n\n" "Commands:\n" " list-units List units\n" " start [NAME...] Start (activate) one or more units\n" @@ -3917,6 +4304,7 @@ static int systemctl_help(void) { " reload-or-try-restart [NAME...] Reload one or more units is possible,\n" " otherwise restart if active\n" " isolate [NAME] Start one unit and stop all others\n" + " kill [NAME...] Send signal to processes of a unit\n" " is-active [NAME...] Check whether units are active\n" " status [NAME...|PID...] Show runtime status of one or more units\n" " show [NAME...|JOB...] Show properties of one or more\n" @@ -3936,16 +4324,17 @@ static int systemctl_help(void) { " delete [NAME...] Remove one or more snapshots\n" " daemon-reload Reload systemd manager configuration\n" " daemon-reexec Reexecute systemd manager\n" - " daemon-exit Ask the systemd manager to quit\n" " show-environment Dump environment\n" " set-environment [NAME=VALUE...] Set one or more environment variables\n" " unset-environment [NAME...] Unset one or more environment variables\n" + " default Enter system default mode\n" + " rescue Enter system rescue mode\n" + " emergency Enter system emergency mode\n" " halt Shut down and halt the system\n" " poweroff Shut down and power-off the system\n" " reboot Shut down and reboot the system\n" - " rescue Enter system rescue mode\n" - " emergency Enter system emergency mode\n" - " default Enter system default mode\n", + " kexec Shut down and reboot the system with kexec\n" + " exit Ask for user instance termination\n", program_invocation_short_name); return 0; @@ -4021,18 +4410,23 @@ static int systemctl_parse_argv(int argc, char *argv[]) { enum { ARG_FAIL = 0x100, + ARG_IGNORE_DEPENDENCIES, ARG_VERSION, - ARG_SESSION, + ARG_USER, ARG_SYSTEM, ARG_GLOBAL, ARG_NO_BLOCK, + ARG_NO_PAGER, ARG_NO_WALL, ARG_ORDER, ARG_REQUIRE, ARG_FULL, - ARG_FORCE, ARG_NO_RELOAD, - ARG_DEFAULTS + ARG_DEFAULTS, + ARG_KILL_MODE, + ARG_KILL_WHO, + ARG_NO_ASK_PASSWORD, + ARG_FAILED }; static const struct option options[] = { @@ -4041,19 +4435,26 @@ static int systemctl_parse_argv(int argc, char *argv[]) { { "type", required_argument, NULL, 't' }, { "property", required_argument, NULL, 'p' }, { "all", no_argument, NULL, 'a' }, + { "failed", no_argument, NULL, ARG_FAILED }, { "full", no_argument, NULL, ARG_FULL }, { "fail", no_argument, NULL, ARG_FAIL }, - { "session", no_argument, NULL, ARG_SESSION }, + { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, + { "user", no_argument, NULL, ARG_USER }, { "system", no_argument, NULL, ARG_SYSTEM }, { "global", no_argument, NULL, ARG_GLOBAL }, { "no-block", no_argument, NULL, ARG_NO_BLOCK }, + { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "no-wall", no_argument, NULL, ARG_NO_WALL }, { "quiet", no_argument, NULL, 'q' }, { "order", no_argument, NULL, ARG_ORDER }, { "require", no_argument, NULL, ARG_REQUIRE }, - { "force", no_argument, NULL, ARG_FORCE }, + { "force", no_argument, NULL, 'f' }, { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, { "defaults", no_argument, NULL, ARG_DEFAULTS }, + { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, + { "kill-who", required_argument, NULL, ARG_KILL_WHO }, + { "signal", required_argument, NULL, 's' }, + { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, { NULL, 0, NULL, 0 } }; @@ -4062,7 +4463,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) { + /* Only when running as systemctl we ask for passwords */ + arg_ask_password = true; + + while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) { switch (c) { @@ -4101,21 +4505,29 @@ static int systemctl_parse_argv(int argc, char *argv[]) { break; case ARG_FAIL: - arg_fail = true; + arg_job_mode = "fail"; + break; + + case ARG_IGNORE_DEPENDENCIES: + arg_job_mode = "ignore-dependencies"; break; - case ARG_SESSION: - arg_session = true; + case ARG_USER: + arg_user = true; break; case ARG_SYSTEM: - arg_session = false; + arg_user = false; break; case ARG_NO_BLOCK: arg_no_block = true; break; + case ARG_NO_PAGER: + arg_no_pager = true; + break; + case ARG_NO_WALL: arg_no_wall = true; break; @@ -4132,11 +4544,15 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_full = true; break; + case ARG_FAILED: + arg_failed = true; + break; + case 'q': arg_quiet = true; break; - case ARG_FORCE: + case 'f': arg_force = true; break; @@ -4146,13 +4562,32 @@ static int systemctl_parse_argv(int argc, char *argv[]) { case ARG_GLOBAL: arg_global = true; - arg_session = true; + arg_user = true; break; case ARG_DEFAULTS: arg_defaults = true; break; + case ARG_KILL_WHO: + arg_kill_who = optarg; + break; + + case ARG_KILL_MODE: + arg_kill_mode = optarg; + break; + + case 's': + if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) { + log_error("Failed to parse signal string %s.", optarg); + return -EINVAL; + } + break; + + case ARG_NO_ASK_PASSWORD: + arg_ask_password = false; + break; + case '?': return -EINVAL; @@ -4308,6 +4743,18 @@ static int parse_time_spec(const char *t, usec_t *_u) { return 0; } +static bool kexec_loaded(void) { + bool loaded = false; + char *s; + + if (read_one_line_file("/sys/kernel/kexec_loaded", &s) >= 0) { + if (s[0] == '1') + loaded = true; + free(s); + } + return loaded; +} + static int shutdown_parse_argv(int argc, char *argv[]) { enum { @@ -4345,7 +4792,10 @@ static int shutdown_parse_argv(int argc, char *argv[]) { break; case 'r': - arg_action = ACTION_REBOOT; + if (kexec_loaded()) + arg_action = ACTION_KEXEC; + else + arg_action = ACTION_REBOOT; break; case 'h': @@ -4538,7 +4988,10 @@ static int parse_argv(int argc, char *argv[]) { arg_action = ACTION_POWEROFF; return halt_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "reboot")) { - arg_action = ACTION_REBOOT; + if (kexec_loaded()) + arg_action = ACTION_KEXEC; + else + arg_action = ACTION_REBOOT; return halt_parse_argv(argc, argv); } else if (strstr(program_invocation_short_name, "shutdown")) { arg_action = ACTION_POWEROFF; @@ -4744,8 +5197,10 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError { "reload-or-restart", MORE, 2, start_unit }, { "reload-or-try-restart", MORE, 2, start_unit }, { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */ + { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */ { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */ { "isolate", EQUAL, 2, start_unit }, + { "kill", MORE, 2, kill_unit }, { "is-active", MORE, 2, check_unit }, { "check", MORE, 2, check_unit }, { "show", MORE, 1, show }, @@ -4757,16 +5212,17 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError { "delete", MORE, 2, delete_snapshot }, { "daemon-reload", EQUAL, 1, daemon_reload }, { "daemon-reexec", EQUAL, 1, daemon_reload }, - { "daemon-exit", EQUAL, 1, daemon_reload }, { "show-environment", EQUAL, 1, show_enviroment }, { "set-environment", MORE, 2, set_environment }, { "unset-environment", MORE, 2, set_environment }, { "halt", EQUAL, 1, start_special }, { "poweroff", EQUAL, 1, start_special }, { "reboot", EQUAL, 1, start_special }, + { "kexec", EQUAL, 1, start_special }, { "default", EQUAL, 1, start_special }, { "rescue", EQUAL, 1, start_special }, { "emergency", EQUAL, 1, start_special }, + { "exit", EQUAL, 1, start_special }, { "reset-failed", MORE, 1, reset_failed }, { "enable", MORE, 2, enable_unit }, { "disable", MORE, 2, enable_unit }, @@ -5021,6 +5477,109 @@ static int runlevel_main(void) { return 0; } +static void pager_open(void) { + int fd[2]; + const char *pager; + pid_t parent_pid; + + if (pager_pid > 0) + return; + + if (!on_tty() || arg_no_pager) + return; + + if ((pager = getenv("PAGER"))) + if (!*pager || streq(pager, "cat")) + return; + + /* Determine and cache number of columns before we spawn the + * pager so that we get the value from the actual tty */ + columns(); + + if (pipe(fd) < 0) { + log_error("Failed to create pager pipe: %m"); + return; + } + + parent_pid = getpid(); + + pager_pid = fork(); + if (pager_pid < 0) { + log_error("Failed to fork pager: %m"); + close_pipe(fd); + return; + } + + /* In the child start the pager */ + if (pager_pid == 0) { + + dup2(fd[0], STDIN_FILENO); + close_pipe(fd); + + setenv("LESS", "FRSX", 0); + + /* Make sure the pager goes away when the parent dies */ + if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) + _exit(EXIT_FAILURE); + + /* Check whether our parent died before we were able + * to set the death signal */ + if (getppid() != parent_pid) + _exit(EXIT_SUCCESS); + + if (pager) { + execlp(pager, pager, NULL); + execl("/bin/sh", "sh", "-c", pager, NULL); + } else { + /* Debian's alternatives command for pagers is + * called 'pager'. Note that we do not call + * sensible-pagers here, since that is just a + * shell script that implements a logic that + * is similar to this one anyway, but is + * Debian-specific. */ + execlp("pager", "pager", NULL); + + execlp("less", "less", NULL); + execlp("more", "more", NULL); + } + + log_error("Unable to execute pager: %m"); + _exit(EXIT_FAILURE); + } + + /* Return in the parent */ + if (dup2(fd[1], STDOUT_FILENO) < 0) + log_error("Failed to duplicate pager pipe: %m"); + + close_pipe(fd); +} + +static void pager_close(void) { + siginfo_t dummy; + + if (pager_pid <= 0) + return; + + /* Inform pager that we are done */ + fclose(stdout); + kill(pager_pid, SIGCONT); + wait_for_terminate(pager_pid, &dummy); + pager_pid = 0; +} + +static void agent_close(void) { + siginfo_t dummy; + + if (agent_pid <= 0) + return; + + /* Inform agent that we are done */ + kill(agent_pid, SIGTERM); + kill(agent_pid, SIGCONT); + wait_for_terminate(agent_pid, &dummy); + agent_pid = 0; +} + int main(int argc, char*argv[]) { int r, retval = EXIT_FAILURE; DBusConnection *bus = NULL; @@ -5046,7 +5605,7 @@ int main(int argc, char*argv[]) { goto finish; } - bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); + bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); switch (arg_action) { @@ -5057,6 +5616,7 @@ int main(int argc, char*argv[]) { case ACTION_HALT: case ACTION_POWEROFF: case ACTION_REBOOT: + case ACTION_KEXEC: r = halt_main(bus); break; @@ -5101,5 +5661,8 @@ finish: strv_free(arg_property); + pager_close(); + agent_close(); + return retval; }