X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemctl.c;h=b584e7032b9558672b5424d854096ffdaf974a6e;hp=59ea7490e767dfa879e3673a7875a9d4b2654e77;hb=1a63987788624a8819b94b199aa6748665f5e957;hpb=1888c9074ab1cb82c1719090561a31d7902df286 diff --git a/src/systemctl.c b/src/systemctl.c index 59ea7490e..b584e7032 100644 --- a/src/systemctl.c +++ b/src/systemctl.c @@ -60,7 +60,7 @@ static const char *arg_type = NULL; static char **arg_property = NULL; static bool arg_all = false; -static bool arg_fail = false; +static const char *arg_job_mode = "replace"; static bool arg_user = false; static bool arg_global = false; static bool arg_immediate = false; @@ -76,9 +76,11 @@ 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 const char *arg_root = NULL; static int arg_signal = SIGTERM; static usec_t arg_when = 0; static enum action { @@ -107,16 +109,30 @@ static enum dot { DOT_ORDER, DOT_REQUIRE } arg_dot = DOT_ALL; +static enum transport { + TRANSPORT_NORMAL, + TRANSPORT_SSH, + TRANSPORT_POLKIT +} arg_transport = TRANSPORT_NORMAL; +static const char *arg_host = NULL; 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; @@ -124,7 +140,10 @@ static bool on_tty(void) { } static void spawn_ask_password_agent(void) { - pid_t parent, child; + pid_t parent; + + if (agent_pid > 0) + return; /* We check STDIN here, not STDOUT, since this is about input, * not output */ @@ -134,23 +153,24 @@ static void spawn_ask_password_agent(void) { 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 ((child = fork()) < 0) + if ((agent_pid = fork()) < 0) return; - if (child == 0) { + if (agent_pid == 0) { /* In the child */ - const char * const args[] = { - SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, - "--watch", - NULL - }; + 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); @@ -159,7 +179,38 @@ static void spawn_ask_password_agent(void) { if (getppid() != parent) _exit(EXIT_SUCCESS); - execv(args[0], (char **) args); + /* 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); } } @@ -305,9 +356,12 @@ 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); @@ -322,7 +376,7 @@ 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)); @@ -334,7 +388,7 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { if (on_tty()) { printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD", active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB"); - if (columns() >= 80+12 || arg_full) + if (columns() >= 80+12 || arg_full || !arg_no_pager) printf(" %s\n", "DESCRIPTION"); else printf("\n"); @@ -346,7 +400,7 @@ 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++; @@ -387,7 +441,7 @@ static void output_units_list(const struct unit_info *unit_infos, unsigned c) { if (u->job_id == 0) printf(" %-*s", job_len, ""); - if (arg_full) + if (arg_full || !arg_no_pager) printf(" %s", u->description); else printf(" %.*s", columns() - a - b - 1, u->description); @@ -421,6 +475,8 @@ 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", @@ -493,8 +549,10 @@ 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; @@ -767,6 +825,8 @@ 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", @@ -1068,7 +1128,7 @@ finish: typedef struct WaitData { Set *set; - bool failed; + char *result; } WaitData; static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { @@ -1092,26 +1152,52 @@ 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; } @@ -1152,7 +1238,6 @@ 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."); @@ -1164,10 +1249,27 @@ 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 and 'systemctl status' 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. */ @@ -1319,22 +1421,26 @@ static int start_unit(DBusConnection *bus, char **args, unsigned n) { if (arg_action == ACTION_SYSTEMCTL) { method = - streq(args[0], "stop") ? "StopUnit" : + streq(args[0], "stop") || + streq(args[0], "condstop") ? "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])]; @@ -1460,6 +1566,7 @@ static int check_unit(DBusConnection *bus, char **args, unsigned n) { dbus_error_free(&error); dbus_message_unref(m); + m = NULL; continue; } @@ -1604,6 +1711,8 @@ finish: } typedef struct ExecStatusInfo { + char *name; + char *path; char **argv; @@ -1621,13 +1730,14 @@ 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); } static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) { - uint64_t start_timestamp, exit_timestamp; + uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic; DBusMessageIter sub2, sub3; const char*path; unsigned n; @@ -1681,7 +1791,9 @@ static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) if (!dbus_message_iter_next(&sub2) || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0) @@ -1730,6 +1842,9 @@ typedef struct UnitStatusInfo { int exit_code, exit_status; + usec_t condition_timestamp; + bool condition_result; + /* Socket */ unsigned n_accepted; unsigned n_connections; @@ -1821,6 +1936,16 @@ static void print_status_info(UnitStatusInfo *i) { else printf("\n"); + if (!i->condition_result && i->condition_timestamp > 0) { + s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp); + s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp); + + if (s1) + printf("\t start condition failed at %s; %s\n", s2, s1); + else if (s2) + printf("\t start condition failed at %s\n", s2); + } + if (i->sysfs_path) printf("\t Device: %s\n", i->sysfs_path); if (i->where) @@ -1833,15 +1958,31 @@ 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; @@ -1856,7 +1997,10 @@ 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 && @@ -1928,12 +2072,14 @@ static void print_status_info(UnitStatusInfo *i) { printf("\t CGroup: %s\n", i->default_control_group); - if ((c = columns()) > 18) - c -= 18; - else - c = 0; + if (arg_transport != TRANSPORT_SSH) { + if ((c = columns()) > 18) + c -= 18; + else + c = 0; - show_cgroup_by_path(i->default_control_group, "\t\t ", c); + show_cgroup_by_path(i->default_control_group, "\t\t ", c); + } } if (i->need_daemon_reload) @@ -1997,6 +2143,8 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn i->accept = b; else if (streq(name, "NeedDaemonReload")) i->need_daemon_reload = b; + else if (streq(name, "ConditionResult")) + i->condition_result = b; break; } @@ -2054,6 +2202,8 @@ static int status_property(const char *name, DBusMessageIter *iter, UnitStatusIn i->inactive_exit_timestamp = (usec_t) u; else if (streq(name, "ActiveExitTimestamp")) i->active_exit_timestamp = (usec_t) u; + else if (streq(name, "ConditionTimestamp")) + i->condition_timestamp = (usec_t) u; break; } @@ -2072,6 +2222,11 @@ 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; @@ -2127,7 +2282,7 @@ static int print_property(const char *name, DBusMessageIter *iter) { /* Yes, heuristics! But we can change this check * should it turn out to not be sufficient */ - if (strstr(name, "Timestamp")) { + if (endswith(name, "Timestamp")) { char timestamp[FORMAT_TIMESTAMP_MAX], *t; if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all) @@ -2249,6 +2404,25 @@ 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; @@ -2477,6 +2651,9 @@ 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 */ @@ -2667,8 +2844,7 @@ static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage else printf("Unit %s removed.\n", id); - } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") || - dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { + } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew")) { uint32_t id; const char *path; @@ -2677,10 +2853,22 @@ static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) log_error("Failed to parse message: %s", bus_error_message(&error)); - else if (streq(dbus_message_get_member(message), "JobNew")) + else printf("Job %u added.\n", id); + + + } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { + uint32_t id; + 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 - printf("Job %u removed.\n", id); + printf("Job %u removed (result=%s).\n", id, result); } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) { @@ -2860,6 +3048,8 @@ 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", @@ -3135,6 +3325,13 @@ static int daemon_reload(DBusConnection *bus, char **args, unsigned n) { goto finish; } + if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) { + /* On reexecution, we expect a disconnect, not + * a reply */ + r = 0; + goto finish; + } + log_error("Failed to issue method call: %s", bus_error_message(&error)); r = -EIO; goto finish; @@ -3222,6 +3419,8 @@ 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", @@ -3431,6 +3630,7 @@ static int config_parse_also( unsigned line, const char *section, const char *lvalue, + int ltype, const char *rvalue, void *data, void *userdata) { @@ -3649,8 +3849,14 @@ static int remove_marked_symlinks(const char *config_path) { return r; } -static int create_symlink(const char *verb, const char *old_path, const char *new_path) { +static int create_symlink(const char *verb, const char *orig_old_path, const char *new_path) { int r; + const char *old_path; + + if (arg_root) + old_path = orig_old_path+strlen(arg_root); + else + old_path = orig_old_path; assert(old_path); assert(new_path); @@ -3764,6 +3970,7 @@ static int create_symlink(const char *verb, const char *old_path, const char *ne return 1; } + free(dest); return 0; } @@ -3845,11 +4052,11 @@ finish: static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) { const ConfigItem items[] = { - { "Alias", config_parse_strv, &i->aliases, "Install" }, - { "WantedBy", config_parse_strv, &i->wanted_by, "Install" }, - { "Also", config_parse_also, NULL, "Install" }, + { "Alias", config_parse_strv, 0, &i->aliases, "Install" }, + { "WantedBy", config_parse_strv, 0, &i->wanted_by, "Install" }, + { "Also", config_parse_also, 0, NULL, "Install" }, - { NULL, NULL, NULL, NULL } + { NULL, NULL, 0, NULL, NULL } }; char **p; @@ -3862,12 +4069,23 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo STRV_FOREACH(p, paths->unit_path) { int fd; + char *path, *should_free; + + if (arg_root) + should_free = path = strappend(arg_root, *p); + else { + should_free = NULL; + path = *p; + } - if (!(filename = path_make_absolute(i->name, *p))) { + if (!(filename = path_make_absolute(i->name, path))) { log_error("Out of memory"); return -ENOMEM; } + if (should_free) + free(should_free); + /* Ensure that we don't follow symlinks */ if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0) if ((f = fdopen(fd, "re"))) @@ -3890,7 +4108,7 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo } if (!f) { -#if defined(TARGET_FEDORA) && defined (HAVE_SYSV_COMPAT) +#if (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX)) && defined (HAVE_SYSV_COMPAT) if (endswith(i->name, ".service")) { char *sysv; @@ -3902,7 +4120,14 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo } sysv[strlen(sysv) - sizeof(".service") + 1] = 0; - exists = access(sysv, F_OK) >= 0; + if (arg_root) { + char *tmp_path; + + tmp_path = strappend (arg_root, sysv); + exists = access (tmp_path, F_OK) >= 0; + free (tmp_path); + } else + exists = access(sysv, F_OK) >= 0; if (exists) { pid_t pid; @@ -3912,6 +4137,7 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo "/sbin/chkconfig", NULL, NULL, + NULL, NULL }; @@ -3920,9 +4146,11 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo argv[1] = file_name_from_path(sysv); argv[2] = streq(verb, "enable") ? "on" : - streq(verb, "disable") ? "off" : NULL; + streq(verb, "disable") ? "off" : "--level=5"; + if (arg_root) + argv[3] = strappend("--root=", arg_root); - log_info("Executing %s %s %s", argv[0], argv[1], strempty(argv[2])); + log_info("Executing %s %s %s %s", argv[0], argv[1], strempty(argv[2]), strempty(argv[3])); if ((pid = fork()) < 0) { log_error("Failed to fork: %m"); @@ -3939,10 +4167,15 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo return r; if (status.si_code == CLD_EXITED) { - if (status.si_status == 0 && (streq(verb, "enable") || streq(verb, "disable"))) + + 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; } @@ -3963,6 +4196,16 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo return r; } + /* Consider unit files stored in /lib and /usr always enabled + * if they have no [Install] data. */ + if (streq(verb, "is-enabled") && + strv_isempty(i->aliases) && + strv_isempty(i->wanted_by) && + !path_startswith(filename, "/etc")) { + fclose(f); + return 1; + } + n_symlinks += strv_length(i->aliases); n_symlinks += strv_length(i->wanted_by); @@ -3984,20 +4227,24 @@ static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo } static char *get_config_path(void) { + char *ret; if (arg_user && arg_global) - return strdup(USER_CONFIG_UNIT_PATH); + ret = strdup(USER_CONFIG_UNIT_PATH); if (arg_user) { - char *p; - - if (user_config_home(&p) < 0) + if (user_config_home(&ret) < 0) return NULL; - - return p; } - return strdup(SYSTEM_CONFIG_UNIT_PATH); + ret = strdup(SYSTEM_CONFIG_UNIT_PATH); + if (arg_root) { + char *p; + p = strappend (arg_root, ret); + free (ret); + return p; + } else + return ret; } static int enable_unit(DBusConnection *bus, char **args, unsigned n) { @@ -4045,6 +4292,8 @@ static int enable_unit(DBusConnection *bus, char **args, unsigned n) { goto finish; } + r = 0; + while ((i = hashmap_first(will_install))) { int q; @@ -4078,7 +4327,7 @@ static int enable_unit(DBusConnection *bus, char **args, unsigned n) { /* 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) ) { + (arg_user || running_in_chroot() <= 0 || arg_root) ) { int q; if ((q = daemon_reload(bus, args, n)) < 0) @@ -4108,25 +4357,32 @@ static int systemctl_help(void) { " -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" + " --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" + " -H --host=[user@]host\n" + " Show information for remote host\n" + " -P --privileged Acquire privileges before execution\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-pager Do not pipe output into a pager.\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" + " --order When generating graph for dot, show only order\n" + " --require When generating graph for dot, show only requirement\n" + " --root=path Use as the root file system\n" + " --system Connect to system manager\n" + " --user Connect to user service manager\n" + " --global Enable/disable unit files globally\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" @@ -4248,6 +4504,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) { enum { ARG_FAIL = 0x100, + ARG_IGNORE_DEPENDENCIES, ARG_VERSION, ARG_USER, ARG_SYSTEM, @@ -4257,12 +4514,14 @@ static int systemctl_parse_argv(int argc, char *argv[]) { ARG_NO_WALL, ARG_ORDER, ARG_REQUIRE, + ARG_ROOT, ARG_FULL, ARG_NO_RELOAD, ARG_DEFAULTS, ARG_KILL_MODE, ARG_KILL_WHO, - ARG_NO_ASK_PASSWORD + ARG_NO_ASK_PASSWORD, + ARG_FAILED }; static const struct option options[] = { @@ -4271,8 +4530,10 @@ 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 }, + { "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 }, @@ -4282,6 +4543,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) { { "quiet", no_argument, NULL, 'q' }, { "order", no_argument, NULL, ARG_ORDER }, { "require", no_argument, NULL, ARG_REQUIRE }, + { "root", required_argument, NULL, ARG_ROOT }, { "force", no_argument, NULL, 'f' }, { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, { "defaults", no_argument, NULL, ARG_DEFAULTS }, @@ -4289,6 +4551,8 @@ static int systemctl_parse_argv(int argc, char *argv[]) { { "kill-who", required_argument, NULL, ARG_KILL_WHO }, { "signal", required_argument, NULL, 's' }, { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, + { "host", required_argument, NULL, 'H' }, + { "privileged",no_argument, NULL, 'P' }, { NULL, 0, NULL, 0 } }; @@ -4300,7 +4564,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) { /* 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) { + while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:P", options, NULL)) >= 0) { switch (c) { @@ -4339,7 +4603,11 @@ 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_USER: @@ -4370,10 +4638,18 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_dot = DOT_REQUIRE; break; + case ARG_ROOT: + arg_root = optarg; + break; + case ARG_FULL: arg_full = true; break; + case ARG_FAILED: + arg_failed = true; + break; + case 'q': arg_quiet = true; break; @@ -4414,6 +4690,15 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_ask_password = false; break; + case 'P': + arg_transport = TRANSPORT_POLKIT; + break; + + case 'H': + arg_transport = TRANSPORT_SSH; + arg_host = optarg; + break; + case '?': return -EINVAL; @@ -4423,6 +4708,11 @@ static int systemctl_parse_argv(int argc, char *argv[]) { } } + if (arg_transport != TRANSPORT_NORMAL && arg_user) { + log_error("Cannot access user instance remotely."); + return -EINVAL; + } + return 1; } @@ -4525,10 +4815,10 @@ static int parse_time_spec(const char *t, usec_t *_u) { if (streq(t, "now")) *_u = 0; - else if (t[0] == '+') { + else if (!strchr(t, ':')) { uint64_t u; - if (safe_atou64(t + 1, &u) < 0) + if (safe_atou64(t, &u) < 0) return -EINVAL; *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u; @@ -4569,6 +4859,18 @@ 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 { @@ -4606,7 +4908,10 @@ 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': @@ -4799,7 +5104,10 @@ 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; @@ -4999,12 +5307,14 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError { "cancel", MORE, 2, cancel_job }, { "start", MORE, 2, start_unit }, { "stop", MORE, 2, start_unit }, + { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */ { "reload", MORE, 2, start_unit }, { "restart", MORE, 2, start_unit }, { "try-restart", MORE, 2, start_unit }, { "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 }, @@ -5096,11 +5406,17 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError /* Require a bus connection for all operations but * enable/disable */ - if (!streq(verbs[i].verb, "enable") && - !streq(verbs[i].verb, "disable") && - !bus) { - log_error("Failed to get D-Bus connection: %s", error->message); - return -EIO; + if (!streq(verbs[i].verb, "enable") && !streq(verbs[i].verb, "disable")) { + + if (running_in_chroot() > 0) { + log_info("Running in chroot, ignoring request."); + return 0; + } + + if (!bus) { + log_error("Failed to get D-Bus connection: %s", error->message); + return -EIO; + } } return verbs[i].dispatch(bus, argv + optind, left); @@ -5127,7 +5443,7 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) { zero(sockaddr); sockaddr.sa.sa_family = AF_UNIX; sockaddr.un.sun_path[0] = 0; - strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1); + strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path)); zero(iovec); iovec.iov_base = (char*) &c; @@ -5135,7 +5451,7 @@ static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) { zero(msghdr); msghdr.msg_name = &sockaddr; - msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1; + msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1; msghdr.msg_iov = &iovec; msghdr.msg_iovlen = 1; @@ -5287,6 +5603,7 @@ static int runlevel_main(void) { static void pager_open(void) { int fd[2]; const char *pager; + pid_t parent_pid; if (pager_pid > 0) return; @@ -5294,15 +5611,21 @@ static void pager_open(void) { if (!on_tty() || arg_no_pager) return; - if ((pager = getenv("PAGER"))) + if ((pager = getenv("SYSTEMD_PAGER")) || (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"); @@ -5316,16 +5639,29 @@ static void pager_open(void) { dup2(fd[0], STDIN_FILENO); close_pipe(fd); - if (!getenv("LESS")) - setenv("LESS", "FRSX", 0); + setenv("LESS", "FRSX", 0); + + /* Make sure the pager goes away when the parent dies */ + if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) + _exit(EXIT_FAILURE); - prctl(PR_SET_PDEATHSIG, SIGTERM); + /* 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 { - execlp("sensible-pager", "sensible-pager", NULL); + /* 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); } @@ -5349,10 +5685,24 @@ static void pager_close(void) { /* 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; @@ -5370,8 +5720,6 @@ int main(int argc, char*argv[]) { goto finish; } - pager_open(); - /* /sbin/runlevel doesn't need to communicate via D-Bus, so * let's shortcut this */ if (arg_action == ACTION_RUNLEVEL) { @@ -5380,7 +5728,22 @@ int main(int argc, char*argv[]) { goto finish; } - bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); + if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) { + log_info("Running in chroot, ignoring request."); + retval = 0; + goto finish; + } + + if (arg_transport == TRANSPORT_NORMAL) + bus_connect(arg_user ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); + else if (arg_transport == TRANSPORT_POLKIT) { + bus_connect_system_polkit(&bus, &error); + private_bus = false; + } else if (arg_transport == TRANSPORT_SSH) { + bus_connect_system_ssh(NULL, arg_host, &bus, &error); + private_bus = false; + } else + assert_not_reached("Uh, invalid transport..."); switch (arg_action) { @@ -5391,6 +5754,7 @@ int main(int argc, char*argv[]) { case ACTION_HALT: case ACTION_POWEROFF: case ACTION_REBOOT: + case ACTION_KEXEC: r = halt_main(bus); break; @@ -5436,6 +5800,7 @@ finish: strv_free(arg_property); pager_close(); + agent_close(); return retval; }