X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemctl.c;h=667aeaeb9642cd4ee40891c745d96f522681b46c;hp=a41d7ea8bdf8c8404fc944afc739da8590d4d191;hb=9d8a57fff160cc14873ebcbc79a4216a18b42f70;hpb=514f4ef52f91edb3741cad88d34572d162459346 diff --git a/src/systemctl.c b/src/systemctl.c index a41d7ea8b..667aeaeb9 100644 --- a/src/systemctl.c +++ b/src/systemctl.c @@ -28,6 +28,8 @@ #include #include #include +#include +#include #include @@ -37,19 +39,28 @@ #include "set.h" #include "utmp-wtmp.h" #include "special.h" +#include "initreq.h" +#include "strv.h" +#include "dbus-common.h" +#include "cgroup-show.h" +#include "cgroup-util.h" +#include "list.h" static const char *arg_type = NULL; +static char **arg_property = NULL; static bool arg_all = false; -static bool arg_replace = false; +static bool arg_fail = false; static bool arg_session = false; -static bool arg_block = false; +static bool arg_no_block = false; static bool arg_immediate = false; static bool arg_no_wtmp = false; static bool arg_no_sync = false; static bool arg_no_wall = false; static bool arg_dry = false; +static bool arg_quiet = false; +static char arg_full = false; static char **arg_wall = NULL; -enum action { +static enum action { ACTION_INVALID, ACTION_SYSTEMCTL, ACTION_HALT, @@ -67,6 +78,25 @@ enum action { ACTION_RUNLEVEL, _ACTION_MAX } arg_action = ACTION_SYSTEMCTL; +static enum dot { + DOT_ALL, + DOT_ORDER, + DOT_REQUIRE +} arg_dot = DOT_ALL; + +static bool private_bus = false; + +static const char *ansi_highlight(bool b) { + static int t = -1; + + if (_unlikely_(t < 0)) + t = isatty(STDOUT_FILENO) > 0; + + if (!t) + return ""; + + return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF; +} static bool error_is_no_service(DBusError *error) { @@ -100,31 +130,6 @@ static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *da return 0; } -static int columns(void) { - static int parsed_columns = 0; - const char *e; - - if (parsed_columns > 0) - return parsed_columns; - - if ((e = getenv("COLUMNS"))) - parsed_columns = atoi(e); - - if (parsed_columns <= 0) { - struct winsize ws; - zero(ws); - - if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0) - parsed_columns = ws.ws_col; - } - - if (parsed_columns <= 0) - parsed_columns = 80; - - return parsed_columns; - -} - static void warn_wall(enum action action) { static const char *table[_ACTION_MAX] = { [ACTION_HALT] = "The system is going down for system halt NOW!", @@ -137,6 +142,23 @@ static void warn_wall(enum action action) { if (arg_no_wall) return; + if (arg_wall) { + char *p; + + if (!(p = strv_join(arg_wall, " "))) { + log_error("Failed to join strings."); + return; + } + + if (*p) { + utmp_wall(p); + free(p); + return; + } + + free(p); + } + if (!table[action]) return; @@ -179,10 +201,11 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { dbus_message_iter_recurse(&iter, &sub); - printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION"); + if (isatty(STDOUT_FILENO)) + printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION"); while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { - const char *id, *description, *load_state, *active_state, *sub_state, *unit_state, *job_type, *job_path, *dot; + const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path, *job_type, *job_path, *dot; uint32_t job_id; if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { @@ -198,7 +221,8 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || - bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 || bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) { @@ -209,14 +233,19 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { if ((!arg_type || ((dot = strrchr(id, '.')) && streq(dot+1, arg_type))) && - (arg_all || !streq(active_state, "inactive"))) { - + (arg_all || !(streq(active_state, "inactive") || following[0]) || job_id > 0)) { + char *e; int a = 0, b = 0; - printf("%-45s %-6s %-12s %-12s%n", id, load_state, active_state, sub_state, &a); + if (streq(active_state, "maintenance")) + fputs(ansi_highlight(true), stdout); + + e = arg_full ? NULL : ellipsize(id, 45, 33); + printf("%-45s %-6s %-12s %-12s%n", e ? e : id, load_state, active_state, sub_state, &a); + free(e); if (job_id != 0) - printf(" %-15s%n", job_type, &b); + printf(" => %-12s%n", job_type, &b); else b = 1 + 15; @@ -224,9 +253,12 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { if (job_id == 0) printf(" "); - printf("%.*s", columns() - a - b - 2, description); + printf(" %.*s", columns() - a - b - 2, description); } + if (streq(active_state, "maintenance")) + fputs(ansi_highlight(false), stdout); + fputs("\n", stdout); k++; } @@ -234,10 +266,258 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) { dbus_message_iter_next(&sub); } - if (arg_all) - printf("\n%u units listed.\n", k); - else - printf("\n%u live units listed. Pass --all to see dead units, too.\n", k); + if (isatty(STDOUT_FILENO)) { + + printf("\nLOAD = Load State, reflects whether the unit configuration was properly loaded.\n" + "ACTIVE = Active State, the high-level unit activation state, i.e. generalization of the substate.\n" + "SUB = Substate, the low-level unit activation state, possible values depend on unit type.\n" + "JOB = Job, shows pending jobs for the unit.\n"); + + if (arg_all) + printf("\n%u units listed.\n", k); + else + printf("\n%u units listed. Pass --all to see inactive units, too.\n", k); + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) { + static const char * const colors[] = { + "Requires", "[color=\"black\"]", + "RequiresOverridable", "[color=\"black\"]", + "Requisite", "[color=\"darkblue\"]", + "RequisiteOverridable", "[color=\"darkblue\"]", + "Wants", "[color=\"darkgrey\"]", + "Conflicts", "[color=\"red\"]", + "After", "[color=\"green\"]" + }; + + const char *c = NULL; + unsigned i; + + assert(name); + assert(prop); + assert(iter); + + for (i = 0; i < ELEMENTSOF(colors); i += 2) + if (streq(colors[i], prop)) { + c = colors[i+1]; + break; + } + + if (!c) + return 0; + + if (arg_dot != DOT_ALL) + if ((arg_dot == DOT_ORDER) != streq(prop, "After")) + return 0; + + switch (dbus_message_iter_get_arg_type(iter)) { + + case DBUS_TYPE_ARRAY: + + if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *s; + + assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); + dbus_message_iter_get_basic(&sub, &s); + printf("\t\"%s\"->\"%s\" %s;\n", name, s, c); + + dbus_message_iter_next(&sub); + } + + return 0; + } + } + + return 0; +} + +static int dot_one(DBusConnection *bus, const char *name, const char *path) { + DBusMessage *m = NULL, *reply = NULL; + const char *interface = "org.freedesktop.systemd1.Unit"; + int r; + DBusError error; + DBusMessageIter iter, sub, sub2, sub3; + + assert(bus); + assert(path); + + dbus_error_init(&error); + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "GetAll"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + 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", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&iter, &sub); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *prop; + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub2, &sub3); + + if (dot_one_property(name, prop, &sub3)) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_next(&sub); + } + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int dot(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + DBusError error; + int r; + DBusMessageIter iter, sub, sub2; + + dbus_error_init(&error); + + assert(bus); + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "ListUnits"))) { + log_error("Could not allocate message."); + return -ENOMEM; + } + + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + printf("digraph systemd {\n"); + + dbus_message_iter_recurse(&iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *id, *description, *load_state, *active_state, *sub_state, *unit_path; + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + if ((r = dot_one(bus, id, unit_path)) < 0) + goto finish; + + /* printf("\t\"%s\";\n", id); */ + dbus_message_iter_next(&sub); + } + + printf("}\n"); + + log_info(" Color legend: black = Requires\n" + " dark blue = Requisite\n" + " dark grey = Wants\n" + " red = Conflicts\n" + " green = After\n"); + + if (isatty(fileno(stdout))) + log_notice("-- You probably want to process this output with graphviz' dot tool.\n" + "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n"); r = 0; @@ -294,6 +574,7 @@ static int list_jobs(DBusConnection *bus, char **args, unsigned n) { while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { const char *name, *type, *state, *job_path, *unit_path; uint32_t id; + char *e; if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { log_error("Failed to parse reply."); @@ -314,7 +595,10 @@ static int list_jobs(DBusConnection *bus, char **args, unsigned n) { goto finish; } - printf("%4u %-45s %-17s %-7s\n", id, name, type, state); + e = arg_full ? NULL : ellipsize(name, 45, 33); + printf("%4u %-45s %-17s %-7s\n", id, e ? e : name, type, state); + free(e); + k++; dbus_message_iter_next(&sub); @@ -482,41 +766,122 @@ finish: return r; } -static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { - DBusError error; - Set *s = data; - - assert(connection); - assert(message); - assert(s); +static bool unit_need_daemon_reload(DBusConnection *bus, const char *unit) { + DBusMessage *m, *reply; + dbus_bool_t b = FALSE; + DBusMessageIter iter, sub; + const char + *interface = "org.freedesktop.systemd1.Unit", + *property = "NeedDaemonReload", + *path; - dbus_error_init(&error); + /* We ignore all errors here, since this is used to show a warning only */ - /* log_debug("Got D-Bus request: %s.%s() on %s", */ - /* dbus_message_get_interface(message), */ - /* dbus_message_get_member(message), */ - /* dbus_message_get_path(message)); */ + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnit"))) + goto finish; - if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { - log_error("Warning! D-Bus connection terminated."); - dbus_connection_close(connection); + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &unit, + DBUS_TYPE_INVALID)) + goto finish; - } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { - uint32_t id; - const char *path; + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) + goto finish; - if (!dbus_message_get_args(message, &error, - DBUS_TYPE_UINT32, &id, - DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_INVALID)) - log_error("Failed to parse message: %s", error.message); - else { - char *p; + if (!dbus_message_get_args(reply, NULL, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) + goto finish; - if ((p = set_remove(s, (char*) path))) - free(p); - } - } + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "Get"))) + goto finish; + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + DBUS_TYPE_STRING, &property, + DBUS_TYPE_INVALID)) { + goto finish; + } + + dbus_message_unref(reply); + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) + goto finish; + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) + goto finish; + + dbus_message_iter_recurse(&iter, &sub); + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN) + goto finish; + + dbus_message_iter_get_basic(&sub, &b); + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + return b; +} + +typedef struct WaitData { + Set *set; + bool failed; +} WaitData; + +static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { + DBusError error; + WaitData *d = data; + + assert(connection); + assert(message); + assert(d); + + dbus_error_init(&error); + + log_debug("Got D-Bus request: %s.%s() on %s", + dbus_message_get_interface(message), + dbus_message_get_member(message), + dbus_message_get_path(message)); + + if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { + log_error("Warning! D-Bus connection terminated."); + dbus_connection_close(connection); + + } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { + uint32_t id; + const char *path; + 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", error.message); + else { + char *p; + + if ((p = set_remove(d->set, (char*) path))) + free(p); + + if (!success) + d->failed = true; + } + } dbus_error_free(&error); return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; @@ -524,13 +889,13 @@ static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *me static int enable_wait_for_jobs(DBusConnection *bus) { DBusError error; - DBusMessage *m = NULL, *reply = NULL; - int r; assert(bus); - dbus_error_init(&error); + if (private_bus) + return 0; + dbus_error_init(&error); dbus_bus_add_match(bus, "type='signal'," "sender='org.freedesktop.systemd1'," @@ -541,49 +906,26 @@ static int enable_wait_for_jobs(DBusConnection *bus) { if (dbus_error_is_set(&error)) { log_error("Failed to add match: %s", error.message); - r = -EIO; - goto finish; - } - - if (!(m = dbus_message_new_method_call( - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "Subscribe"))) { - log_error("Could not allocate 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", error.message); - r = -EIO; - goto finish; + dbus_error_free(&error); + return -EIO; } - r = 0; - -finish: /* This is slightly dirty, since we don't undo the match registrations. */ - - if (m) - dbus_message_unref(m); - - if (reply) - dbus_message_unref(reply); - - dbus_error_free(&error); - - return r; + return 0; } static int wait_for_jobs(DBusConnection *bus, Set *s) { int r; + WaitData d; assert(bus); assert(s); - if (!dbus_connection_add_filter(bus, wait_filter, s, NULL)) { + zero(d); + d.set = s; + d.failed = false; + + if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) { log_error("Failed to add filter."); r = -ENOMEM; goto finish; @@ -593,7 +935,10 @@ static int wait_for_jobs(DBusConnection *bus, Set *s) { dbus_connection_read_write_dispatch(bus, -1)) ; - r = 0; + if (!arg_quiet && d.failed) + log_error("Job failed, see logs for details."); + + r = d.failed ? -EIO : 0; finish: /* This is slightly dirty, since we don't undo the filter registration. */ @@ -610,13 +955,14 @@ static int start_unit_one( DBusMessage *m = NULL, *reply = NULL; DBusError error; + const char *path; int r; assert(bus); assert(method); assert(name); assert(mode); - assert(!arg_block || s); + assert(arg_no_block || s); dbus_error_init(&error); @@ -648,37 +994,1055 @@ static int start_unit_one( goto finish; } - log_error("Failed to issue method call: %s", error.message); - r = -EIO; - goto finish; - } - - if (arg_block) { - const char *path; - char *p; + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", error.message); + r = -EIO; + goto finish; + } + + if (unit_need_daemon_reload(bus, name)) + log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.", + arg_session ? "--session" : "--system"); + + if (!arg_no_block) { + char *p; + + if (!(p = strdup(path))) { + log_error("Failed to duplicate path."); + r = -ENOMEM; + goto finish; + } + + if ((r = set_put(s, p)) < 0) { + free(p); + log_error("Failed to add path to set."); + goto finish; + } + } + + r = 1; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static enum action verb_to_action(const char *verb) { + if (streq(verb, "halt")) + return ACTION_HALT; + else if (streq(verb, "poweroff")) + return ACTION_POWEROFF; + else if (streq(verb, "reboot")) + return ACTION_REBOOT; + 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 + return ACTION_INVALID; +} + +static int start_unit(DBusConnection *bus, char **args, unsigned n) { + + static const char * const table[_ACTION_MAX] = { + [ACTION_HALT] = SPECIAL_HALT_TARGET, + [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET, + [ACTION_REBOOT] = SPECIAL_REBOOT_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 + }; + + int r; + unsigned i; + const char *method, *mode, *one_name; + Set *s = NULL; + + assert(bus); + + 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") ? "TryRestartUnit" : + streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" : + streq(args[0], "reload-or-try-restart") || + streq(args[0], "force-reload") || + streq(args[0], "condrestart") ? "ReloadOrTryRestartUnit" : + "StartUnit"; + + mode = + (streq(args[0], "isolate") || + streq(args[0], "rescue") || + streq(args[0], "emergency")) ? "isolate" : + arg_fail ? "fail" : + "replace"; + + one_name = table[verb_to_action(args[0])]; + + } else { + assert(arg_action < ELEMENTSOF(table)); + assert(table[arg_action]); + + method = "StartUnit"; + + mode = (arg_action == ACTION_EMERGENCY || + arg_action == ACTION_RESCUE) ? "isolate" : "replace"; + + one_name = table[arg_action]; + } + + if (!arg_no_block) { + if ((r = enable_wait_for_jobs(bus)) < 0) { + log_error("Could not watch jobs: %s", strerror(-r)); + goto finish; + } + + if (!(s = set_new(string_hash_func, string_compare_func))) { + log_error("Failed to allocate set."); + r = -ENOMEM; + goto finish; + } + } + + r = 0; + + if (one_name) { + if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0) + goto finish; + } else { + for (i = 1; i < n; i++) + if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0) + goto finish; + } + + if (!arg_no_block) + r = wait_for_jobs(bus, s); + +finish: + if (s) + set_free_free(s); + + return r; +} + +static int start_special(DBusConnection *bus, char **args, unsigned n) { + int r; + + assert(bus); + assert(args); + + r = start_unit(bus, args, n); + + if (r >= 0) + warn_wall(verb_to_action(args[0])); + + return r; +} + +static int check_unit(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + const char + *interface = "org.freedesktop.systemd1.Unit", + *property = "ActiveState"; + int r = -EADDRNOTAVAIL; + DBusError error; + unsigned i; + + assert(bus); + assert(args); + + dbus_error_init(&error); + + for (i = 1; i < n; i++) { + const char *path = NULL; + const char *state; + DBusMessageIter iter, sub; + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &args[i], + 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))) { + + /* Hmm, cannot figure out anything about this unit... */ + if (!arg_quiet) + puts("unknown"); + + dbus_error_free(&error); + continue; + } + + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", error.message); + r = -EIO; + goto finish; + } + + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "Get"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + DBUS_TYPE_STRING, &property, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + dbus_message_unref(reply); + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&iter, &sub); + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_get_basic(&sub, &state); + + if (!arg_quiet) + puts(state); + + if (streq(state, "active") || startswith(state, "reloading")) + r = 0; + + dbus_message_unref(m); + 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 *path; + char **argv; + + bool ignore; + + usec_t start_timestamp; + usec_t exit_timestamp; + pid_t pid; + int code; + int status; + + LIST_FIELDS(struct ExecStatusInfo, exec); +} ExecStatusInfo; + +static void exec_status_info_free(ExecStatusInfo *i) { + assert(i); + + 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; + DBusMessageIter sub2, sub3; + const char*path; + unsigned n; + uint32_t pid; + int32_t code, status; + dbus_bool_t ignore; + + assert(i); + assert(i); + + if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT) + return -EIO; + + dbus_message_iter_recurse(sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0) + return -EIO; + + if (!(i->path = strdup(path))) + return -ENOMEM; + + if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING) + return -EIO; + + n = 0; + dbus_message_iter_recurse(&sub2, &sub3); + while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { + assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); + dbus_message_iter_next(&sub3); + n++; + } + + + if (!(i->argv = new0(char*, n+1))) + return -ENOMEM; + + n = 0; + dbus_message_iter_recurse(&sub2, &sub3); + while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { + const char *s; + + assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); + dbus_message_iter_get_basic(&sub3, &s); + dbus_message_iter_next(&sub3); + + if (!(i->argv[n++] = strdup(s))) + return -ENOMEM; + } + + 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, &exit_timestamp, 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) + return -EIO; + + i->ignore = ignore; + i->start_timestamp = (usec_t) start_timestamp; + i->exit_timestamp = (usec_t) exit_timestamp; + i->pid = (pid_t) pid; + i->code = code; + i->status = status; + + return 0; +} + +typedef struct UnitStatusInfo { + const char *id; + const char *load_state; + const char *active_state; + const char *sub_state; + + const char *description; + + const char *fragment_path; + const char *default_control_group; + + bool need_daemon_reload; + + /* Service */ + pid_t main_pid; + pid_t control_pid; + const char *status_text; + bool running; + + usec_t start_timestamp; + usec_t exit_timestamp; + + int exit_code, exit_status; + + /* Socket */ + unsigned n_accepted; + unsigned n_connections; + bool accept; + + /* Device */ + const char *sysfs_path; + + /* Mount, Automount */ + const char *where; + + /* Swap */ + const char *what; + + LIST_HEAD(ExecStatusInfo, exec); +} UnitStatusInfo; + +static void print_status_info(UnitStatusInfo *i) { + ExecStatusInfo *p; + + assert(i); + + /* This shows pretty information about a unit. See + * print_property() for a low-level property printer */ + + printf("%s", strna(i->id)); + + if (i->description && !streq_ptr(i->id, i->description)) + printf(" - %s", i->description); + + printf("\n"); + + if (i->fragment_path) + printf("\t Loaded: %s (%s)\n", strna(i->load_state), i->fragment_path); + else if (streq_ptr(i->load_state, "failed")) + printf("\t Loaded: %s%s%s\n", + ansi_highlight(true), + strna(i->load_state), + ansi_highlight(false)); + else + printf("\t Loaded: %s\n", strna(i->load_state)); + + if (streq_ptr(i->active_state, "maintenance")) { + if (streq_ptr(i->active_state, i->sub_state)) + printf("\t Active: %s%s%s\n", + ansi_highlight(true), + strna(i->active_state), + ansi_highlight(false)); + else + printf("\t Active: %s%s (%s)%s\n", + ansi_highlight(true), + strna(i->active_state), + strna(i->sub_state), + ansi_highlight(false)); + } else { + if (streq_ptr(i->active_state, i->sub_state)) + printf("\t Active: %s\n", + strna(i->active_state)); + else + printf("\t Active: %s (%s)\n", + strna(i->active_state), + strna(i->sub_state)); + } + + if (i->sysfs_path) + printf("\t Device: %s\n", i->sysfs_path); + else if (i->where) + printf("\t Where: %s\n", i->where); + else if (i->what) + printf("\t What: %s\n", i->what); + + if (i->accept) + printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections); + + LIST_FOREACH(exec, p, i->exec) { + char *t; + + /* Only show exited processes here */ + if (p->code == 0) + continue; + + t = strv_join(p->argv, " "); + printf("\t Exited: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code)); + free(t); + + if (p->code == CLD_EXITED) + printf("status=%i", p->status); + else + printf("signal=%s", signal_to_string(p->status)); + printf(")\n"); + + if (i->main_pid == p->pid && + i->start_timestamp == p->start_timestamp && + i->exit_timestamp == p->start_timestamp) + /* Let's not show this twice */ + i->main_pid = 0; + + if (p->pid == i->control_pid) + i->control_pid = 0; + } + + if (i->main_pid > 0 || i->control_pid > 0) { + printf("\t"); + + if (i->main_pid > 0) { + printf(" Main: %u", (unsigned) i->main_pid); + + if (i->running) { + char *t = NULL; + get_process_name(i->main_pid, &t); + if (t) { + printf(" (%s)", t); + free(t); + } + } else { + printf(" (code=%s, ", sigchld_code_to_string(i->exit_code)); + + if (i->exit_code == CLD_EXITED) + printf("status=%i", i->exit_status); + else + printf("signal=%s", signal_to_string(i->exit_status)); + printf(")"); } + } + + if (i->main_pid > 0 && i->control_pid > 0) + printf(";"); + + if (i->control_pid > 0) { + char *t = NULL; + + printf(" Control: %u", (unsigned) i->control_pid); + + get_process_name(i->control_pid, &t); + if (t) { + printf(" (%s)", t); + free(t); + } + } + + printf("\n"); + } + + if (i->status_text) + printf("\t Status: \"%s\"\n", i->status_text); + + if (i->default_control_group) { + unsigned c; + + printf("\t CGroup: %s\n", i->default_control_group); + + if ((c = columns()) > 18) + c -= 18; + else + c = 0; + + show_cgroup_by_path(i->default_control_group, "\t\t ", c); + } + + if (i->need_daemon_reload) + 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"); +} + +static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) { + + switch (dbus_message_iter_get_arg_type(iter)) { + + case DBUS_TYPE_STRING: { + const char *s; + + dbus_message_iter_get_basic(iter, &s); + + if (s[0]) { + if (streq(name, "Id")) + i->id = s; + else if (streq(name, "LoadState")) + i->load_state = s; + else if (streq(name, "ActiveState")) + i->active_state = s; + else if (streq(name, "SubState")) + i->sub_state = s; + else if (streq(name, "Description")) + i->description = s; + else if (streq(name, "FragmentPath")) + i->fragment_path = s; + else if (streq(name, "DefaultControlGroup")) + i->default_control_group = s; + else if (streq(name, "StatusText")) + i->status_text = s; + else if (streq(name, "SysFSPath")) + i->sysfs_path = s; + else if (streq(name, "Where")) + i->where = s; + else if (streq(name, "What")) + i->what = s; + } + + break; + } + + case DBUS_TYPE_BOOLEAN: { + dbus_bool_t b; + + dbus_message_iter_get_basic(iter, &b); + + if (streq(name, "Accept")) + i->accept = b; + else if (streq(name, "NeedDaemonReload")) + i->need_daemon_reload = b; + + break; + } + + case DBUS_TYPE_UINT32: { + uint32_t u; + + dbus_message_iter_get_basic(iter, &u); + + if (streq(name, "MainPID")) { + if (u > 0) { + i->main_pid = (pid_t) u; + i->running = true; + } + } else if (streq(name, "ControlPID")) + i->control_pid = (pid_t) u; + else if (streq(name, "ExecMainPID")) { + if (u > 0) + i->main_pid = (pid_t) u; + } else if (streq(name, "NAccepted")) + i->n_accepted = u; + else if (streq(name, "NConnections")) + i->n_connections = u; + + break; + } + + case DBUS_TYPE_INT32: { + int32_t j; + + dbus_message_iter_get_basic(iter, &j); + + if (streq(name, "ExecMainCode")) + i->exit_code = (int) j; + else if (streq(name, "ExecMainStatus")) + i->exit_status = (int) j; + + break; + } + + case DBUS_TYPE_UINT64: { + uint64_t u; + + dbus_message_iter_get_basic(iter, &u); + + if (streq(name, "ExecMainStartTimestamp")) + i->start_timestamp = (usec_t) u; + else if (streq(name, "ExecMainExitTimestamp")) + i->exit_timestamp = (usec_t) u; + + break; + } + + case DBUS_TYPE_ARRAY: { + + if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && + startswith(name, "Exec")) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + ExecStatusInfo *info; + int r; + + if (!(info = new0(ExecStatusInfo, 1))) + return -ENOMEM; + + if ((r = exec_status_info_deserialize(&sub, info)) < 0) { + free(info); + return r; + } + + LIST_PREPEND(ExecStatusInfo, exec, i->exec, info); + + dbus_message_iter_next(&sub); + } + } + + break; + } + } + + return 0; +} + +static int print_property(const char *name, DBusMessageIter *iter) { + assert(name); + assert(iter); + + /* This is a low-level property printer, see + * print_status_info() for the nicer output */ + + if (arg_property && !strv_find(arg_property, name)) + return 0; + + switch (dbus_message_iter_get_arg_type(iter)) { + + case DBUS_TYPE_STRING: { + const char *s; + dbus_message_iter_get_basic(iter, &s); + + if (arg_all || s[0]) + printf("%s=%s\n", name, s); + + return 0; + } + + case DBUS_TYPE_BOOLEAN: { + dbus_bool_t b; + dbus_message_iter_get_basic(iter, &b); + printf("%s=%s\n", name, yes_no(b)); + + return 0; + } + + case DBUS_TYPE_UINT64: { + uint64_t u; + dbus_message_iter_get_basic(iter, &u); + + /* Yes, heuristics! But we can change this check + * should it turn out to not be sufficient */ + + if (strstr(name, "Timestamp")) { + char timestamp[FORMAT_TIMESTAMP_MAX], *t; + + if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all) + printf("%s=%s\n", name, strempty(t)); + } else if (strstr(name, "USec")) { + char timespan[FORMAT_TIMESPAN_MAX]; + + printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u)); + } else + printf("%s=%llu\n", name, (unsigned long long) u); + + return 0; + } + + case DBUS_TYPE_UINT32: { + uint32_t u; + dbus_message_iter_get_basic(iter, &u); + + if (strstr(name, "UMask") || strstr(name, "Mode")) + printf("%s=%04o\n", name, u); + else + printf("%s=%u\n", name, (unsigned) u); + + return 0; + } + + case DBUS_TYPE_INT32: { + int32_t i; + dbus_message_iter_get_basic(iter, &i); + + printf("%s=%i\n", name, (int) i); + return 0; + } + + case DBUS_TYPE_STRUCT: { + DBusMessageIter sub; + dbus_message_iter_recurse(iter, &sub); + + if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) { + uint32_t u; + + dbus_message_iter_get_basic(&sub, &u); + + if (u) + printf("%s=%u\n", name, (unsigned) u); + else if (arg_all) + printf("%s=\n", name); + + return 0; + } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) { + const char *s; + + dbus_message_iter_get_basic(&sub, &s); + + if (arg_all || s[0]) + printf("%s=%s\n", name, s); + + return 0; + } + + break; + } + + case DBUS_TYPE_ARRAY: + + if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { + DBusMessageIter sub; + bool space = false; + + dbus_message_iter_recurse(iter, &sub); + if (arg_all || + dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + printf("%s=", name); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *s; + + assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); + dbus_message_iter_get_basic(&sub, &s); + printf("%s%s", space ? " " : "", s); + + space = true; + dbus_message_iter_next(&sub); + } + + puts(""); + } + + return 0; + + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + if (arg_all || + dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + printf("%s=", name); + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + uint8_t u; + + assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE); + dbus_message_iter_get_basic(&sub, &u); + printf("%02x", u); + + dbus_message_iter_next(&sub); + } + + puts(""); + } + + return 0; + + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) { + DBusMessageIter sub, sub2; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + const char *type, *path; + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 && + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) + printf("%s=%s\n", type, path); + + dbus_message_iter_next(&sub); + } + + return 0; + + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) { + DBusMessageIter sub, sub2; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + const char *base; + uint64_t value, next_elapse; + + dbus_message_iter_recurse(&sub, &sub2); + + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 && + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 && + bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) { + char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX]; + + printf("%s={ value=%s ; next_elapse=%s }\n", + base, + format_timespan(timespan1, sizeof(timespan1), value), + format_timespan(timespan2, sizeof(timespan2), next_elapse)); + } + + dbus_message_iter_next(&sub); + } + + return 0; + + } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) { + DBusMessageIter sub; + + dbus_message_iter_recurse(iter, &sub); + while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { + ExecStatusInfo info; + + zero(info); + if (exec_status_info_deserialize(&sub, &info) >= 0) { + char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; + char *t; + + t = strv_join(info.argv, " "); + + printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n", + name, + strna(info.path), + strna(t), + yes_no(info.ignore), + strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), + strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), + (unsigned) info. pid, + sigchld_code_to_string(info.code), + info.status, + info.code == CLD_EXITED ? "" : "/", + strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); + + free(t); + } + + free(info.path); + strv_free(info.argv); + + dbus_message_iter_next(&sub); + } + + return 0; + } + + break; + } + + if (arg_all) + printf("%s=[unprintable]\n", name); + + return 0; +} + +static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) { + DBusMessage *m = NULL, *reply = NULL; + const char *interface = ""; + int r; + DBusError error; + DBusMessageIter iter, sub, sub2, sub3; + UnitStatusInfo info; + ExecStatusInfo *p; + + assert(bus); + assert(path); + assert(new_line); + + zero(info); + dbus_error_init(&error); + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "GetAll"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + 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", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || + dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&iter, &sub); + + if (*new_line) + printf("\n"); + + *new_line = true; + + while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { + const char *name; + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&sub, &sub2); - if (!dbus_message_get_args(reply, &error, - DBUS_TYPE_OBJECT_PATH, &path, - DBUS_TYPE_INVALID)) { - log_error("Failed to parse reply: %s", error.message); + if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) { + log_error("Failed to parse reply."); r = -EIO; goto finish; } - if (!(p = strdup(path))) { - log_error("Failed to duplicate path."); - r = -ENOMEM; + if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { + log_error("Failed to parse reply."); + r = -EIO; goto finish; } - if ((r = set_put(s, p)) < 0) { - free(p); - log_error("Failed to add path to set."); + dbus_message_iter_recurse(&sub2, &sub3); + + if (show_properties) + r = print_property(name, &sub3); + else + r = status_property(name, &sub3, &info); + + if (r < 0) { + log_error("Failed to parse reply."); + r = -EIO; goto finish; } + + dbus_message_iter_next(&sub); } - r = 1; + if (!show_properties) + print_status_info(&info); + + while ((p = info.exec)) { + LIST_REMOVE(ExecStatusInfo, exec, info.exec, p); + exec_status_info_free(p); + } + + r = 0; finish: if (m) @@ -692,114 +2056,143 @@ finish: return r; } -static enum action verb_to_action(const char *verb) { - if (streq(verb, "halt")) - return ACTION_HALT; - else if (streq(verb, "poweroff")) - return ACTION_POWEROFF; - else if (streq(verb, "reboot")) - return ACTION_REBOOT; - 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 - return ACTION_INVALID; -} - -static int start_unit(DBusConnection *bus, char **args, unsigned n) { - - static const char * const table[_ACTION_MAX] = { - [ACTION_HALT] = SPECIAL_HALT_TARGET, - [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET, - [ACTION_REBOOT] = SPECIAL_REBOOT_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_SERVICE, - [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET - }; - +static int show(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; int r; + DBusError error; unsigned i; - const char *method, *mode, *one_name; - Set *s = NULL; + bool show_properties, new_line = false; assert(bus); + assert(args); - if (arg_action == ACTION_SYSTEMCTL) { - method = - streq(args[0], "stop") ? "StopUnit" : - streq(args[0], "reload") ? "ReloadUnit" : - streq(args[0], "restart") ? "RestartUnit" : - "StartUnit"; + dbus_error_init(&error); - mode = - (streq(args[0], "isolate") || - streq(args[0], "rescue") || - streq(args[0], "emergency")) ? "isolate" : - arg_replace ? "replace" : - "fail"; + show_properties = !streq(args[0], "status"); - one_name = table[verb_to_action(args[0])]; + if (show_properties && n <= 1) { + /* If not argument is specified inspect the manager + * itself */ - } else { - assert(arg_action < ELEMENTSOF(table)); - assert(table[arg_action]); + r = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line); + goto finish; + } - method = "StartUnit"; + for (i = 1; i < n; i++) { + const char *path = NULL; + uint32_t id; - mode = (arg_action == ACTION_EMERGENCY || - arg_action == ACTION_RESCUE) ? "isolate" : "replace"; + if (!show_properties || safe_atou32(args[i], &id) < 0) { - one_name = table[arg_action]; - } + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "LoadUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } - if (arg_block) { - if ((r = enable_wait_for_jobs(bus)) < 0) { - log_error("Could not watch jobs: %s", strerror(-r)); - goto finish; + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &args[i], + 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))) { + + if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + dbus_error_free(&error); + + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &args[i], + 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", error.message); + r = -EIO; + goto finish; + } + } + + } else { + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetJob"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_UINT32, &id, + 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", error.message); + r = -EIO; + goto finish; + } } - if (!(s = set_new(string_hash_func, string_compare_func))) { - log_error("Failed to allocate set."); - r = -ENOMEM; + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", error.message); + r = -EIO; goto finish; } - } - - r = 0; - if (one_name) { - if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0) + if ((r = show_one(bus, path, show_properties, &new_line)) < 0) goto finish; - } else { - for (i = 1; i < n; i++) - if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0) - goto finish; + + dbus_message_unref(m); + dbus_message_unref(reply); + m = reply = NULL; } - if (arg_block) - r = wait_for_jobs(bus, s); + r = 0; finish: - if (s) - set_free_free(s); - - return r; -} + if (m) + dbus_message_unref(m); -static int start_special(DBusConnection *bus, char **args, unsigned n) { - assert(bus); - assert(args); + if (reply) + dbus_message_unref(reply); - warn_wall(verb_to_action(args[0])); + dbus_error_free(&error); - return start_unit(bus, args, n); + return r; } static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) { @@ -811,10 +2204,10 @@ static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage dbus_error_init(&error); - /* log_debug("Got D-Bus request: %s.%s() on %s", */ - /* dbus_message_get_interface(message), */ - /* dbus_message_get_member(message), */ - /* dbus_message_get_path(message)); */ + log_debug("Got D-Bus request: %s.%s() on %s", + dbus_message_get_interface(message), + dbus_message_get_member(message), + dbus_message_get_path(message)); if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { log_error("Warning! D-Bus connection terminated."); @@ -940,43 +2333,45 @@ static int monitor(DBusConnection *bus, char **args, unsigned n) { dbus_error_init(&error); - dbus_bus_add_match(bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Manager'," - "path='/org/freedesktop/systemd1'", - &error); + if (!private_bus) { + dbus_bus_add_match(bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Manager'," + "path='/org/freedesktop/systemd1'", + &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match: %s", error.message); - r = -EIO; - goto finish; - } + if (dbus_error_is_set(&error)) { + log_error("Failed to add match: %s", error.message); + r = -EIO; + goto finish; + } - dbus_bus_add_match(bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Unit'," - "member='Changed'", - &error); + dbus_bus_add_match(bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Unit'," + "member='Changed'", + &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match: %s", error.message); - r = -EIO; - goto finish; - } + if (dbus_error_is_set(&error)) { + log_error("Failed to add match: %s", error.message); + r = -EIO; + goto finish; + } - dbus_bus_add_match(bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Job'," - "member='Changed'", - &error); + dbus_bus_add_match(bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Job'," + "member='Changed'", + &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match: %s", error.message); - r = -EIO; - goto finish; + if (dbus_error_is_set(&error)) { + log_error("Failed to add match: %s", error.message); + r = -EIO; + goto finish; + } } if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) { @@ -1116,49 +2511,134 @@ static int snapshot(DBusConnection *bus, char **args, unsigned n) { goto finish; } - dbus_message_unref(m); - if (!(m = dbus_message_new_method_call( - "org.freedesktop.systemd1", - path, - "org.freedesktop.DBus.Properties", - "Get"))) { - log_error("Could not allocate message."); - return -ENOMEM; - } + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.DBus.Properties", + "Get"))) { + log_error("Could not allocate message."); + return -ENOMEM; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &interface, + DBUS_TYPE_STRING, &property, + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } + + dbus_message_unref(reply); + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + if (!dbus_message_iter_init(reply, &iter) || + dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_recurse(&iter, &sub); + + if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { + log_error("Failed to parse reply."); + r = -EIO; + goto finish; + } + + dbus_message_iter_get_basic(&sub, &id); + + if (!arg_quiet) + puts(id); + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + +static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + int r; + DBusError error; + unsigned i; + + assert(bus); + assert(args); + + dbus_error_init(&error); + + for (i = 1; i < n; i++) { + const char *path = NULL; + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "GetUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, &args[i], + DBUS_TYPE_INVALID)) { + log_error("Could not append arguments to message."); + r = -ENOMEM; + goto finish; + } - if (!dbus_message_append_args(m, - DBUS_TYPE_STRING, &interface, - DBUS_TYPE_STRING, &property, - 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", error.message); + r = -EIO; + goto finish; + } - dbus_message_unref(reply); - if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { - log_error("Failed to issue method call: %s", error.message); - r = -EIO; - goto finish; - } + if (!dbus_message_get_args(reply, &error, + DBUS_TYPE_OBJECT_PATH, &path, + DBUS_TYPE_INVALID)) { + log_error("Failed to parse reply: %s", error.message); + r = -EIO; + goto finish; + } - if (!dbus_message_iter_init(reply, &iter) || - dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { - log_error("Failed to parse reply."); - r = -EIO; - goto finish; - } + dbus_message_unref(m); + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + path, + "org.freedesktop.systemd1.Snapshot", + "Remove"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } - dbus_message_iter_recurse(&iter, &sub); + dbus_message_unref(reply); + if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } - if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { - log_error("Failed to parse reply."); - r = -EIO; - goto finish; + dbus_message_unref(m); + dbus_message_unref(reply); + m = reply = NULL; } - dbus_message_iter_get_basic(&sub, &id); - puts(id); r = 0; finish: @@ -1189,10 +2669,11 @@ static int clear_jobs(DBusConnection *bus, char **args, unsigned n) { assert(arg_action == ACTION_SYSTEMCTL); method = - streq(args[0], "clear-jobs") ? "ClearJobs" : - streq(args[0], "daemon-reload") ? "Reload" : - streq(args[0], "daemon-reexec") ? "Reexecute" : - "Exit"; + streq(args[0], "clear-jobs") ? "ClearJobs" : + streq(args[0], "daemon-reload") ? "Reload" : + streq(args[0], "daemon-reexec") ? "Reexecute" : + streq(args[0], "reset-maintenance") ? "ResetMaintenance" : + "Exit"; } if (!(m = dbus_message_new_method_call( @@ -1232,6 +2713,63 @@ finish: return r; } +static int reset_maintenance(DBusConnection *bus, char **args, unsigned n) { + DBusMessage *m = NULL, *reply = NULL; + unsigned i; + int r; + DBusError error; + + assert(bus); + dbus_error_init(&error); + + if (n <= 1) + return clear_jobs(bus, args, n); + + for (i = 1; i < n; i++) { + + if (!(m = dbus_message_new_method_call( + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "ResetMaintenanceUnit"))) { + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + if (!dbus_message_append_args(m, + DBUS_TYPE_STRING, args + i, + 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", error.message); + r = -EIO; + goto finish; + } + + dbus_message_unref(m); + dbus_message_unref(reply); + m = reply = NULL; + } + + r = 0; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + dbus_error_free(&error); + + return r; +} + static int show_enviroment(DBusConnection *bus, char **args, unsigned n) { DBusMessage *m = NULL, *reply = NULL; DBusError error; @@ -1381,42 +2919,61 @@ finish: static int systemctl_help(void) { - printf("%s [options]\n\n" - "Send control commands to the init daemon.\n\n" - " -h --help Show this help\n" - " -t --type=TYPE List only units of a particular type\n" - " -a --all Show all units, including dead ones\n" - " --replace When installing a new job, replace existing conflicting ones\n" - " --system Connect to system bus\n" - " --session Connect to session bus\n" - " --block Wait until operation finished\n" - " --no-wall Don't send wall message before reboot/halt/power-off\n\n" + printf("%s [OPTIONS...] {COMMAND} ...\n\n" + "Send control commands to or query the systemd manager.\n\n" + " -h --help Show this help\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.\n" + " --fail When installing a new job, fail if conflicting jobs are\n" + " pending\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" + " -q --quiet Suppress output\n" + " --no-block Do not wait until operation finished\n" + " --no-wall Don't send wall message before halt/power-off/reboot\n\n" "Commands:\n" " list-units List units\n" - " list-jobs List jobs\n" - " clear-jobs Cancel all jobs\n" - " load [NAME...] Load one or more units\n" - " cancel [JOB...] Cancel one or more jobs\n" " start [NAME...] Start one or more units\n" " stop [NAME...] Stop one or more units\n" - " restart [NAME...] Restart one or more units\n" " reload [NAME...] Reload one or more units\n" + " restart [NAME...] Start or restart one or more units\n" + " try-restart [NAME...] Restart one or more units if active\n" + " reload-or-restart [NAME...] Reload one or more units is possible,\n" + " otherwise start or restart\n" + " 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" + " check [NAME...] Check whether units are active\n" + " status [NAME...] Show status of one or more units\n" + " show [NAME...|JOB...] Show properties of one or more\n" + " units/jobs/manager\n" + " reset-maintenance [NAME...] Reset maintenance state for all, one\n" + " or more units\n" + " load [NAME...] Load one or more units\n" + " list-jobs List jobs\n" + " cancel [JOB...] Cancel one or more jobs\n" + " clear-jobs Cancel all jobs\n" " monitor Monitor unit/job changes\n" " dump Dump server status\n" + " dot Dump dependency graph for dot(1)\n" " snapshot [NAME] Create a snapshot\n" - " daemon-reload Reload init daemon configuration\n" - " daemon-reexecute Reexecute init daemon\n" - " daemon-exit Ask the init daemon to quit\n" + " 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" " 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" - " poweroff Shut down and power off the system\n" - " default Enter default mode\n" - " rescue Enter rescue mode\n" - " emergency Enter emergency mode\n", + " rescue Enter system rescue mode\n" + " emergency Enter system emergency mode\n" + " default Enter system default mode\n", program_invocation_short_name); return 0; @@ -1424,17 +2981,17 @@ static int systemctl_help(void) { static int halt_help(void) { - printf("%s [options]\n\n" + printf("%s [OPTIONS...]\n\n" "%s the system.\n\n" " --help Show this help\n" " --halt Halt the machine\n" " -p --poweroff Switch off the machine\n" " --reboot Reboot the machine\n" - " -f --force Force immediate reboot/halt/power-off\n" - " -w --wtmp-only Don't reboot/halt/power-off, just write wtmp record\n" + " -f --force Force immediate halt/power-off/reboot\n" + " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n" " -d --no-wtmp Don't write wtmp record\n" - " -n --no-sync Don't sync before reboot/halt/power-off\n" - " --no-wall Don't send wall message before reboot/halt/power-off\n", + " -n --no-sync Don't sync before halt/power-off/reboot\n" + " --no-wall Don't send wall message before halt/power-off/reboot\n", program_invocation_short_name, arg_action == ACTION_REBOOT ? "Reboot" : arg_action == ACTION_POWEROFF ? "Power off" : @@ -1445,15 +3002,15 @@ static int halt_help(void) { static int shutdown_help(void) { - printf("%s [options] [IGNORED] [WALL...]\n\n" + printf("%s [OPTIONS...] [now] [WALL...]\n\n" "Shut down the system.\n\n" " --help Show this help\n" " -H --halt Halt the machine\n" " -P --poweroff Power-off the machine\n" " -r --reboot Reboot the machine\n" " -h Equivalent to --poweroff, overriden by --halt\n" - " -k Don't reboot/halt/power-off, just send warnings\n" - " --no-wall Don't send wall message before reboot/halt/power-off\n", + " -k Don't halt/power-off/reboot, just send warnings\n" + " --no-wall Don't send wall message before halt/power-off/reboot\n", program_invocation_short_name); return 0; @@ -1461,10 +3018,10 @@ static int shutdown_help(void) { static int telinit_help(void) { - printf("%s [options]\n\n" + printf("%s [OPTIONS...] {COMMAND}\n\n" "Send control commands to the init daemon.\n\n" " --help Show this help\n" - " --no-wall Don't send wall message before reboot/halt/power-off\n\n" + " --no-wall Don't send wall message before halt/power-off/reboot\n\n" "Commands:\n" " 0 Power-off the machine\n" " 6 Reboot the machine\n" @@ -1479,7 +3036,7 @@ static int telinit_help(void) { static int runlevel_help(void) { - printf("%s [options]\n\n" + printf("%s [OPTIONS...]\n\n" "Prints the previous and current runlevel of the init system.\n\n" " --help Show this help\n", program_invocation_short_name); @@ -1490,23 +3047,31 @@ static int runlevel_help(void) { static int systemctl_parse_argv(int argc, char *argv[]) { enum { - ARG_REPLACE = 0x100, + ARG_FAIL = 0x100, ARG_SESSION, ARG_SYSTEM, - ARG_BLOCK, - ARG_NO_WALL + ARG_NO_BLOCK, + ARG_NO_WALL, + ARG_ORDER, + ARG_REQUIRE, + ARG_FULL }; static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "type", required_argument, NULL, 't' }, - { "all", no_argument, NULL, 'a' }, - { "replace", no_argument, NULL, ARG_REPLACE }, - { "session", no_argument, NULL, ARG_SESSION }, - { "system", no_argument, NULL, ARG_SYSTEM }, - { "block", no_argument, NULL, ARG_BLOCK }, - { "no-wall", no_argument, NULL, ARG_NO_WALL }, - { NULL, 0, NULL, 0 } + { "help", no_argument, NULL, 'h' }, + { "type", required_argument, NULL, 't' }, + { "property", required_argument, NULL, 'p' }, + { "all", no_argument, NULL, 'a' }, + { "full", no_argument, NULL, ARG_FULL }, + { "fail", no_argument, NULL, ARG_FAIL }, + { "session", no_argument, NULL, ARG_SESSION }, + { "system", no_argument, NULL, ARG_SYSTEM }, + { "no-block", no_argument, NULL, ARG_NO_BLOCK }, + { "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 }, + { NULL, 0, NULL, 0 } }; int c; @@ -1514,7 +3079,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "hta", options, NULL)) >= 0) { + while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) { switch (c) { @@ -1526,12 +3091,28 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_type = optarg; break; + case 'p': { + char **l; + + if (!(l = strv_append(arg_property, optarg))) + return -ENOMEM; + + strv_free(arg_property); + arg_property = l; + + /* If the user asked for a particular + * property, show it to him, even if it is + * empty. */ + arg_all = true; + break; + } + case 'a': arg_all = true; break; - case ARG_REPLACE: - arg_replace = true; + case ARG_FAIL: + arg_fail = true; break; case ARG_SESSION: @@ -1542,14 +3123,30 @@ static int systemctl_parse_argv(int argc, char *argv[]) { arg_session = false; break; - case ARG_BLOCK: - arg_block = true; + case ARG_NO_BLOCK: + arg_no_block = true; break; case ARG_NO_WALL: arg_no_wall = true; break; + case ARG_ORDER: + arg_dot = DOT_ORDER; + break; + + case ARG_REQUIRE: + arg_dot = DOT_REQUIRE; + break; + + case ARG_FULL: + arg_full = true; + break; + + case 'q': + arg_quiet = true; + break; + case '?': return -EINVAL; @@ -1721,6 +3318,9 @@ static int shutdown_parse_argv(int argc, char *argv[]) { } } + if (argc > optind && !streq(argv[optind], "now")) + log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]); + /* We ignore the time argument */ if (argc > optind + 1) arg_wall = argv + optind + 1; @@ -1728,7 +3328,6 @@ static int shutdown_parse_argv(int argc, char *argv[]) { optind = argc; return 1; - } static int telinit_parse_argv(int argc, char *argv[]) { @@ -1790,7 +3389,7 @@ static int telinit_parse_argv(int argc, char *argv[]) { } if (optind >= argc) { - log_error("Argument missing."); + telinit_help(); return -EINVAL; } @@ -1891,14 +3490,152 @@ static int parse_argv(int argc, char *argv[]) { return systemctl_parse_argv(argc, argv); } -static int talk_upstart(DBusConnection *bus) { - log_error("Talking upstart"); - return 0; +static int action_to_runlevel(void) { + + static const char table[_ACTION_MAX] = { + [ACTION_HALT] = '0', + [ACTION_POWEROFF] = '0', + [ACTION_REBOOT] = '6', + [ACTION_RUNLEVEL2] = '2', + [ACTION_RUNLEVEL3] = '3', + [ACTION_RUNLEVEL4] = '4', + [ACTION_RUNLEVEL5] = '5', + [ACTION_RESCUE] = '1' + }; + + assert(arg_action < _ACTION_MAX); + + return table[arg_action]; +} + +static int talk_upstart(void) { + DBusMessage *m = NULL, *reply = NULL; + DBusError error; + int previous, rl, r; + char + env1_buf[] = "RUNLEVEL=X", + env2_buf[] = "PREVLEVEL=X"; + char *env1 = env1_buf, *env2 = env2_buf; + const char *emit = "runlevel"; + dbus_bool_t b_false = FALSE; + DBusMessageIter iter, sub; + DBusConnection *bus; + + dbus_error_init(&error); + + if (!(rl = action_to_runlevel())) + return 0; + + if (utmp_get_runlevel(&previous, NULL) < 0) + previous = 'N'; + + if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) { + if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) { + r = 0; + goto finish; + } + + log_error("Failed to connect to Upstart bus: %s", error.message); + r = -EIO; + goto finish; + } + + if ((r = bus_check_peercred(bus)) < 0) { + log_error("Failed to verify owner of bus."); + goto finish; + } + + if (!(m = dbus_message_new_method_call( + "com.ubuntu.Upstart", + "/com/ubuntu/Upstart", + "com.ubuntu.Upstart0_6", + "EmitEvent"))) { + + log_error("Could not allocate message."); + r = -ENOMEM; + goto finish; + } + + dbus_message_iter_init_append(m, &iter); + + env1_buf[sizeof(env1_buf)-2] = rl; + env2_buf[sizeof(env2_buf)-2] = previous; + + if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) || + !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) || + !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) || + !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) || + !dbus_message_iter_close_container(&iter, &sub) || + !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) { + 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))) { + + if (error_is_no_service(&error)) { + r = 0; + goto finish; + } + + log_error("Failed to issue method call: %s", error.message); + r = -EIO; + goto finish; + } + + r = 1; + +finish: + if (m) + dbus_message_unref(m); + + if (reply) + dbus_message_unref(reply); + + if (bus) { + dbus_connection_close(bus); + dbus_connection_unref(bus); + } + + dbus_error_free(&error); + + return r; } static int talk_initctl(void) { - log_error("Talking initctl"); - return 0; + struct init_request request; + int r, fd; + char rl; + + if (!(rl = action_to_runlevel())) + return 0; + + zero(request); + request.magic = INIT_MAGIC; + request.sleeptime = 0; + request.cmd = INIT_CMD_RUNLVL; + request.runlevel = rl; + + if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) { + + if (errno == ENOENT) + return 0; + + log_error("Failed to open "INIT_FIFO": %m"); + return -errno; + } + + errno = 0; + r = loop_write(fd, &request, sizeof(request), false) != sizeof(request); + close_nointr_nofail(fd); + + if (r < 0) { + log_error("Failed to write to "INIT_FIFO": %m"); + return errno ? -errno : -EIO; + } + + return 1; } static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { @@ -1922,10 +3659,20 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { { "stop", MORE, 2, start_unit }, { "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 */ + { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */ { "isolate", EQUAL, 2, start_unit }, + { "check", MORE, 2, check_unit }, + { "show", MORE, 1, show }, + { "status", MORE, 2, show }, { "monitor", EQUAL, 1, monitor }, { "dump", EQUAL, 1, dump }, + { "dot", EQUAL, 1, dot }, { "snapshot", LESS, 2, snapshot }, + { "delete", MORE, 2, delete_snapshot }, { "daemon-reload", EQUAL, 1, clear_jobs }, { "daemon-reexec", EQUAL, 1, clear_jobs }, { "daemon-exit", EQUAL, 1, clear_jobs }, @@ -1938,6 +3685,7 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { { "default", EQUAL, 1, start_special }, { "rescue", EQUAL, 1, start_special }, { "emergency", EQUAL, 1, start_special }, + { "reset-maintenance", MORE, 1, reset_maintenance }, }; int left; @@ -1953,6 +3701,11 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) { /* Special rule: no arguments means "list-units" */ i = 0; else { + if (streq(argv[optind], "help")) { + systemctl_help(); + return 0; + } + for (i = 0; i < ELEMENTSOF(verbs); i++) if (streq(argv[optind], verbs[i].verb)) break; @@ -2019,28 +3772,40 @@ static int reload_with_fallback(DBusConnection *bus) { static int start_with_fallback(DBusConnection *bus) { int r; - warn_wall(arg_action); if (bus) { /* First, try systemd via D-Bus. */ if ((r = start_unit(bus, NULL, 0)) > 0) - return 0; + goto done; /* Hmm, talking to systemd via D-Bus didn't work. Then * let's try to talk to Upstart via D-Bus. */ - if ((r = talk_upstart(bus)) > 0) - return 0; + if ((r = talk_upstart()) > 0) + goto done; } /* Nothing else worked, so let's try * /dev/initctl */ - return talk_initctl(); + if ((r = talk_initctl()) != 0) + goto done; + + log_error("Failed to talk to init daemon."); + return -EIO; + +done: + warn_wall(arg_action); + return 0; } static int halt_main(DBusConnection *bus) { int r; - if (!arg_immediate) + if (geteuid() != 0) { + log_error("Must to be root."); + return -EPERM; + } + + if (!arg_dry && !arg_immediate) return start_with_fallback(bus); if (!arg_no_wtmp) @@ -2120,8 +3885,7 @@ int main(int argc, char*argv[]) { goto finish; } - if ((bus = dbus_bus_get(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error))) - dbus_connection_set_exit_on_disconnect(bus, FALSE); + bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); switch (arg_action) { @@ -2148,6 +3912,7 @@ int main(int argc, char*argv[]) { case ACTION_RUNLEVEL5: case ACTION_RESCUE: case ACTION_EMERGENCY: + case ACTION_DEFAULT: retval = start_with_fallback(bus) < 0; break; @@ -2156,18 +3921,24 @@ int main(int argc, char*argv[]) { retval = reload_with_fallback(bus) < 0; break; + case ACTION_INVALID: + case ACTION_RUNLEVEL: default: assert_not_reached("Unknown action"); } finish: - if (bus) + if (bus) { + dbus_connection_close(bus); dbus_connection_unref(bus); + } dbus_error_free(&error); dbus_shutdown(); + strv_free(arg_property); + return retval; }