+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/reboot.h>
-#include <stdio.h>
-#include <getopt.h>
-#include <stdbool.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-#include <termios.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <stddef.h>
-#include <sys/prctl.h>
-#include <dbus/dbus.h>
-
-#include <systemd/sd-daemon.h>
-#include <systemd/sd-shutdown.h>
-
-#include "log.h"
-#include "util.h"
-#include "macro.h"
-#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"
-#include "path-lookup.h"
-#include "conf-parser.h"
-#include "exit-status.h"
-#include "bus-errors.h"
-#include "build.h"
-#include "unit-name.h"
-#include "pager.h"
-#include "spawn-ask-password-agent.h"
-#include "spawn-polkit-agent.h"
-#include "install.h"
-#include "logs-show.h"
-
-static const char *arg_type = NULL;
-static char **arg_property = NULL;
-static bool arg_all = false;
-static const char *arg_job_mode = "replace";
-static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
-static bool arg_immediate = false;
-static bool arg_no_block = false;
-static bool arg_no_legend = false;
-static bool arg_no_pager = false;
-static bool arg_no_wtmp = false;
-static bool arg_no_sync = false;
-static bool arg_no_wall = false;
-static bool arg_no_reload = false;
-static bool arg_dry = false;
-static bool arg_quiet = false;
-static bool arg_full = false;
-static int arg_force = 0;
-static bool arg_ask_password = true;
-static bool arg_failed = false;
-static bool arg_runtime = false;
-static char **arg_wall = NULL;
-static const char *arg_kill_who = NULL;
-static const char *arg_kill_mode = NULL;
-static int arg_signal = SIGTERM;
-static const char *arg_root = NULL;
-static usec_t arg_when = 0;
-static enum action {
- ACTION_INVALID,
- ACTION_SYSTEMCTL,
- ACTION_HALT,
- ACTION_POWEROFF,
- ACTION_REBOOT,
- ACTION_KEXEC,
- ACTION_EXIT,
- ACTION_RUNLEVEL2,
- ACTION_RUNLEVEL3,
- ACTION_RUNLEVEL4,
- ACTION_RUNLEVEL5,
- ACTION_RESCUE,
- ACTION_EMERGENCY,
- ACTION_DEFAULT,
- ACTION_RELOAD,
- ACTION_REEXEC,
- ACTION_RUNLEVEL,
- ACTION_CANCEL_SHUTDOWN,
- _ACTION_MAX
-} arg_action = ACTION_SYSTEMCTL;
-static enum dot {
- DOT_ALL,
- 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 arg_follow = false;
-static unsigned arg_lines = 10;
-static OutputMode arg_output = OUTPUT_SHORT;
-
-static bool private_bus = false;
-
-static int daemon_reload(DBusConnection *bus, char **args);
-static void halt_now(enum action a);
-
-static bool on_tty(void) {
- static int t = -1;
-
- /* Note that this is invoked relatively early, before we start
- * the pager. That means the value we return reflects whether
- * we originally were started on a tty, not if we currently
- * are. But this is intended, since we want colour and so on
- * when run in our own pager. */
-
- if (_unlikely_(t < 0))
- t = isatty(STDOUT_FILENO) > 0;
-
- return t;
-}
-
-static void pager_open_if_enabled(void) {
-
- /* Cache result before we open the pager */
- on_tty();
-
- if (arg_no_pager)
- return;
-
- pager_open();
-}
-
-static void ask_password_agent_open_if_enabled(void) {
-
- /* Open the password agent as a child process if necessary */
-
- if (!arg_ask_password)
- return;
-
- if (arg_scope != UNIT_FILE_SYSTEM)
- return;
-
- ask_password_agent_open();
-}
-
-static void polkit_agent_open_if_enabled(void) {
-
- /* Open the polkit agent as a child process if necessary */
-
- if (!arg_ask_password)
- return;
-
- if (arg_scope != UNIT_FILE_SYSTEM)
- return;
-
- polkit_agent_open();
-}
-
-static const char *ansi_highlight_red(bool b) {
-
- if (!on_tty())
- return "";
-
- return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
-}
-
-static const char *ansi_highlight_green(bool b) {
-
- if (!on_tty())
- return "";
-
- return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
-}
-
-static bool error_is_no_service(const DBusError *error) {
- assert(error);
-
- if (!dbus_error_is_set(error))
- return false;
-
- if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
- return true;
-
- if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
- return true;
-
- return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
-}
-
-static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
- assert(error);
-
- if (!dbus_error_is_set(error))
- return r;
-
- if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
- dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
- dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
- dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
- return EXIT_NOPERMISSION;
-
- if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
- return EXIT_NOTINSTALLED;
-
- if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
- dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
- return EXIT_NOTIMPLEMENTED;
-
- if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
- return EXIT_NOTCONFIGURED;
-
- if (r != 0)
- return r;
-
- return EXIT_FAILURE;
-}
-
-static void warn_wall(enum action a) {
- static const char *table[_ACTION_MAX] = {
- [ACTION_HALT] = "The system is going down for system halt NOW!",
- [ACTION_REBOOT] = "The system is going down for reboot NOW!",
- [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
- [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
- [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
- [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
- };
-
- if (arg_no_wall)
- return;
-
- if (arg_wall) {
- char *p;
-
- p = strv_join(arg_wall, " ");
- if (!p) {
- log_error("Failed to join strings.");
- return;
- }
-
- if (*p) {
- utmp_wall(p, NULL);
- free(p);
- return;
- }
-
- free(p);
- }
-
- if (!table[a])
- return;
-
- utmp_wall(table[a], NULL);
-}
-
-static bool avoid_bus(void) {
-
- if (running_in_chroot() > 0)
- return true;
-
- if (sd_booted() <= 0)
- return true;
-
- if (!isempty(arg_root))
- return true;
-
- if (arg_scope == UNIT_FILE_GLOBAL)
- return true;
-
- return false;
-}
-
-struct unit_info {
- const char *id;
- const char *description;
- const char *load_state;
- const char *active_state;
- const char *sub_state;
- const char *following;
- const char *unit_path;
- uint32_t job_id;
- const char *job_type;
- const char *job_path;
-};
-
-static int compare_unit_info(const void *a, const void *b) {
- const char *d1, *d2;
- const struct unit_info *u = a, *v = b;
-
- d1 = strrchr(u->id, '.');
- d2 = strrchr(v->id, '.');
-
- if (d1 && d2) {
- int r;
-
- if ((r = strcasecmp(d1, d2)) != 0)
- return r;
- }
-
- return strcasecmp(u->id, v->id);
-}
-
-static bool output_show_unit(const struct unit_info *u) {
- const char *dot;
-
- if (arg_failed)
- return streq(u->active_state, "failed");
-
- return (!arg_type || ((dot = strrchr(u->id, '.')) &&
- streq(dot+1, arg_type))) &&
- (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
-}
-
-static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
- unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
- const struct unit_info *u;
-
- max_id_len = sizeof("UNIT")-1;
- active_len = sizeof("ACTIVE")-1;
- sub_len = sizeof("SUB")-1;
- job_len = sizeof("JOB")-1;
- desc_len = 0;
-
- for (u = unit_infos; u < unit_infos + c; u++) {
- if (!output_show_unit(u))
- continue;
-
- max_id_len = MAX(max_id_len, strlen(u->id));
- active_len = MAX(active_len, strlen(u->active_state));
- sub_len = MAX(sub_len, strlen(u->sub_state));
- if (u->job_id != 0)
- job_len = MAX(job_len, strlen(u->job_type));
- }
-
- if (!arg_full) {
- unsigned basic_len;
- id_len = MIN(max_id_len, 25);
- basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
- if (basic_len < (unsigned) columns()) {
- unsigned extra_len, incr;
- extra_len = columns() - basic_len;
- /* Either UNIT already got 25, or is fully satisfied.
- * Grant up to 25 to DESC now. */
- incr = MIN(extra_len, 25);
- desc_len += incr;
- extra_len -= incr;
- /* split the remaining space between UNIT and DESC,
- * but do not give UNIT more than it needs. */
- if (extra_len > 0) {
- incr = MIN(extra_len / 2, max_id_len - id_len);
- id_len += incr;
- desc_len += extra_len - incr;
- }
- }
- } else
- id_len = max_id_len;
-
- if (!arg_no_legend) {
- printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
- active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
- if (!arg_full && arg_no_pager)
- printf("%.*s\n", desc_len, "DESCRIPTION");
- else
- printf("%s\n", "DESCRIPTION");
- }
-
- for (u = unit_infos; u < unit_infos + c; u++) {
- char *e;
- const char *on_loaded, *off_loaded;
- const char *on_active, *off_active;
-
- if (!output_show_unit(u))
- continue;
-
- n_shown++;
-
- if (streq(u->load_state, "error")) {
- on_loaded = ansi_highlight_red(true);
- off_loaded = ansi_highlight_red(false);
- } else
- on_loaded = off_loaded = "";
-
- if (streq(u->active_state, "failed")) {
- on_active = ansi_highlight_red(true);
- off_active = ansi_highlight_red(false);
- } else
- on_active = off_active = "";
-
- e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
-
- printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
- id_len, e ? e : u->id,
- on_loaded, u->load_state, off_loaded,
- on_active, active_len, u->active_state,
- sub_len, u->sub_state, off_active,
- job_len, u->job_id ? u->job_type : "");
- if (!arg_full && arg_no_pager)
- printf("%.*s\n", desc_len, u->description);
- else
- printf("%s\n", u->description);
-
- free(e);
- }
-
- if (!arg_no_legend) {
- printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
- "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
- "SUB = The low-level unit activation state, values depend on unit type.\n"
- "JOB = Pending job for the unit.\n");
-
- if (arg_all)
- printf("\n%u units listed.\n", n_shown);
- else
- printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
- }
-}
-
-static int list_units(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- DBusMessageIter iter, sub, sub2;
- unsigned c = 0, n_units = 0;
- struct unit_info *unit_infos = NULL;
-
- dbus_error_init(&error);
-
- assert(bus);
-
- pager_open_if_enabled();
-
- 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", bus_error_message(&error));
- 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;
- }
-
- dbus_message_iter_recurse(&iter, &sub);
-
- while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
- struct unit_info *u;
-
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- if (c >= n_units) {
- struct unit_info *w;
-
- n_units = MAX(2*c, 16);
- w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
-
- if (!w) {
- log_error("Failed to allocate unit array.");
- r = -ENOMEM;
- goto finish;
- }
-
- unit_infos = w;
- }
-
- u = unit_infos+c;
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- dbus_message_iter_next(&sub);
- c++;
- }
-
- if (c > 0) {
- qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
- output_units_list(unit_infos, c);
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- free(unit_infos);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int compare_unit_file_list(const void *a, const void *b) {
- const char *d1, *d2;
- const UnitFileList *u = a, *v = b;
-
- d1 = strrchr(u->path, '.');
- d2 = strrchr(v->path, '.');
-
- if (d1 && d2) {
- int r;
-
- r = strcasecmp(d1, d2);
- if (r != 0)
- return r;
- }
-
- return strcasecmp(file_name_from_path(u->path), file_name_from_path(v->path));
-}
-
-static bool output_show_unit_file(const UnitFileList *u) {
- const char *dot;
-
- return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
-}
-
-static void output_unit_file_list(const UnitFileList *units, unsigned c) {
- unsigned max_id_len, id_cols, state_cols, n_shown = 0;
- const UnitFileList *u;
-
- max_id_len = sizeof("UNIT FILE")-1;
- state_cols = sizeof("STATE")-1;
- for (u = units; u < units + c; u++) {
- if (!output_show_unit_file(u))
- continue;
-
- max_id_len = MAX(max_id_len, strlen(file_name_from_path(u->path)));
- state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
- }
-
- if (!arg_full) {
- unsigned basic_cols;
- id_cols = MIN(max_id_len, 25);
- basic_cols = 1 + id_cols + state_cols;
- if (basic_cols < (unsigned) columns())
- id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
- } else
- id_cols = max_id_len;
-
- if (!arg_no_legend)
- printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
-
- for (u = units; u < units + c; u++) {
- char *e;
- const char *on, *off;
- const char *id;
-
- if (!output_show_unit_file(u))
- continue;
-
- n_shown++;
-
- if (u->state == UNIT_FILE_MASKED ||
- u->state == UNIT_FILE_MASKED_RUNTIME ||
- u->state == UNIT_FILE_DISABLED) {
- on = ansi_highlight_red(true);
- off = ansi_highlight_red(false);
- } else if (u->state == UNIT_FILE_ENABLED) {
- on = ansi_highlight_green(true);
- off = ansi_highlight_green(false);
- } else
- on = off = "";
-
- id = file_name_from_path(u->path);
-
- e = arg_full ? NULL : ellipsize(id, id_cols, 33);
-
- printf("%-*s %s%-*s%s\n",
- id_cols, e ? e : id,
- on, state_cols, unit_file_state_to_string(u->state), off);
-
- free(e);
- }
-
- if (!arg_no_legend)
- printf("\n%u unit files listed.\n", n_shown);
-}
-
-static int list_unit_files(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- DBusMessageIter iter, sub, sub2;
- unsigned c = 0, n_units = 0;
- UnitFileList *units = NULL;
-
- dbus_error_init(&error);
-
- pager_open_if_enabled();
-
- if (avoid_bus()) {
- Hashmap *h;
- UnitFileList *u;
- Iterator i;
-
- h = hashmap_new(string_hash_func, string_compare_func);
- if (!h) {
- log_error("Out of memory");
- return -ENOMEM;
- }
-
- r = unit_file_get_list(arg_scope, arg_root, h);
- if (r < 0) {
- unit_file_list_free(h);
- log_error("Failed to get unit file list: %s", strerror(-r));
- return r;
- }
-
- n_units = hashmap_size(h);
- units = new(UnitFileList, n_units);
- if (!units) {
- unit_file_list_free(h);
- log_error("Out of memory");
- return -ENOMEM;
- }
-
- HASHMAP_FOREACH(u, h, i) {
- memcpy(units + c++, u, sizeof(UnitFileList));
- free(u);
- }
-
- hashmap_free(h);
- } else {
- assert(bus);
-
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "ListUnitFiles");
- if (!m) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
-
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- 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;
- }
-
- dbus_message_iter_recurse(&iter, &sub);
-
- while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
- UnitFileList *u;
- const char *state;
-
- if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- if (c >= n_units) {
- UnitFileList *w;
-
- n_units = MAX(2*c, 16);
- w = realloc(units, sizeof(struct UnitFileList) * n_units);
-
- if (!w) {
- log_error("Failed to allocate unit array.");
- r = -ENOMEM;
- goto finish;
- }
-
- units = w;
- }
-
- u = units+c;
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- u->state = unit_file_state_from_string(state);
-
- dbus_message_iter_next(&sub);
- c++;
- }
- }
-
- if (c > 0) {
- qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
- output_unit_file_list(units, c);
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- free(units);
-
- 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\"]",
- "ConflictedBy", "[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", bus_error_message(&error));
- 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);
- }
-
- r = 0;
-
-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) {
- 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", bus_error_message(&error));
- 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, *following, *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_STRING, &following, 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 (on_tty())
- 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;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int list_jobs(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- DBusMessageIter iter, sub, sub2;
- unsigned k = 0;
-
- dbus_error_init(&error);
-
- assert(bus);
-
- pager_open_if_enabled();
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "ListJobs"))) {
- 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", bus_error_message(&error));
- 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;
- }
-
- dbus_message_iter_recurse(&iter, &sub);
-
- if (on_tty())
- printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
-
- 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.");
- r = -EIO;
- goto finish;
- }
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- e = arg_full ? NULL : ellipsize(name, 25, 33);
- printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
- free(e);
-
- k++;
-
- dbus_message_iter_next(&sub);
- }
-
- if (on_tty())
- printf("\n%u jobs listed.\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 load_unit(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL;
- DBusError error;
- int r;
- char **name;
-
- dbus_error_init(&error);
-
- assert(bus);
- assert(args);
-
- STRV_FOREACH(name, args+1) {
- DBusMessage *reply;
-
- 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 (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- dbus_message_unref(m);
- dbus_message_unref(reply);
-
- m = reply = NULL;
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int cancel_job(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- char **name;
-
- dbus_error_init(&error);
-
- assert(bus);
- assert(args);
-
- if (strv_length(args) <= 1)
- return daemon_reload(bus, args);
-
- STRV_FOREACH(name, args+1) {
- unsigned id;
- const char *path;
-
- 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 ((r = safe_atou(*name, &id)) < 0) {
- log_error("Failed to parse job id: %s", strerror(-r));
- goto finish;
- }
-
- assert_cc(sizeof(uint32_t) == sizeof(id));
- 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", bus_error_message(&error));
- 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", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- dbus_message_unref(m);
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- path,
- "org.freedesktop.systemd1.Job",
- "Cancel"))) {
- log_error("Could not allocate 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", bus_error_message(&error));
- 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 bool need_daemon_reload(DBusConnection *bus, const char *unit) {
- DBusMessage *m = NULL, *reply = NULL;
- dbus_bool_t b = FALSE;
- DBusMessageIter iter, sub;
- const char
- *interface = "org.freedesktop.systemd1.Unit",
- *property = "NeedDaemonReload",
- *path;
-
- /* We ignore all errors here, since this is used to show a warning only */
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "GetUnit")))
- goto finish;
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &unit,
- DBUS_TYPE_INVALID))
- goto finish;
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
- goto finish;
-
- if (!dbus_message_get_args(reply, NULL,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID))
- goto finish;
-
- 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;
- char *result;
-} 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, *result;
- dbus_bool_t success = true;
-
- 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->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;
-}
-
-static int enable_wait_for_jobs(DBusConnection *bus) {
- DBusError error;
-
- assert(bus);
-
- if (private_bus)
- return 0;
-
- dbus_error_init(&error);
- dbus_bus_add_match(bus,
- "type='signal',"
- "sender='org.freedesktop.systemd1',"
- "interface='org.freedesktop.systemd1.Manager',"
- "member='JobRemoved',"
- "path='/org/freedesktop/systemd1'",
- &error);
-
- if (dbus_error_is_set(&error)) {
- log_error("Failed to add match: %s", bus_error_message(&error));
- dbus_error_free(&error);
- return -EIO;
- }
-
- /* This is slightly dirty, since we don't undo the match registrations. */
- return 0;
-}
-
-static int wait_for_jobs(DBusConnection *bus, Set *s) {
- int r;
- WaitData d;
-
- assert(bus);
- assert(s);
-
- zero(d);
- d.set = s;
-
- if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
- log_error("Failed to add filter.");
- r = -ENOMEM;
- goto finish;
- }
-
- while (!set_isempty(s) &&
- dbus_connection_read_write_dispatch(bus, -1))
- ;
-
- 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 journal for details.");
- else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
- log_error("Job failed. See system journal 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;
-
- free(d.result);
-
-finish:
- /* This is slightly dirty, since we don't undo the filter registration. */
-
- return r;
-}
-
-static int start_unit_one(
- DBusConnection *bus,
- const char *method,
- const char *name,
- const char *mode,
- DBusError *error,
- Set *s) {
-
- DBusMessage *m = NULL, *reply = NULL;
- const char *path;
- int r;
-
- assert(bus);
- assert(method);
- assert(name);
- assert(mode);
- assert(error);
- assert(arg_no_block || s);
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_STRING, &mode,
- 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 (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
- /* There's always a fallback possible for
- * legacy actions. */
- r = -EADDRNOTAVAIL;
- goto finish;
- }
-
- log_error("Failed to issue method call: %s", bus_error_message(error));
- 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", bus_error_message(error));
- r = -EIO;
- goto finish;
- }
-
- if (need_daemon_reload(bus, name))
- log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
- arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
-
- 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 = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- 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, "kexec"))
- return ACTION_KEXEC;
- else if (streq(verb, "rescue"))
- return ACTION_RESCUE;
- else if (streq(verb, "emergency"))
- return ACTION_EMERGENCY;
- else if (streq(verb, "default"))
- return ACTION_DEFAULT;
- else if (streq(verb, "exit"))
- return ACTION_EXIT;
- else
- return ACTION_INVALID;
-}
-
-static int start_unit(DBusConnection *bus, char **args) {
-
- static const char * const table[_ACTION_MAX] = {
- [ACTION_HALT] = SPECIAL_HALT_TARGET,
- [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
- [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
- [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
- [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
- [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
- [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
- [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
- [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
- [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
- [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
- [ACTION_EXIT] = SPECIAL_EXIT_TARGET
- };
-
- int r, ret = 0;
- const char *method, *mode, *one_name;
- Set *s = NULL;
- DBusError error;
- char **name;
-
- dbus_error_init(&error);
-
- assert(bus);
-
- ask_password_agent_open_if_enabled();
-
- if (arg_action == ACTION_SYSTEMCTL) {
- method =
- 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_job_mode;
-
- 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 ||
- arg_action == ACTION_RUNLEVEL2 ||
- arg_action == ACTION_RUNLEVEL3 ||
- arg_action == ACTION_RUNLEVEL4 ||
- arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
-
- one_name = table[arg_action];
- }
-
- if (!arg_no_block) {
- if ((ret = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-ret));
- goto finish;
- }
-
- if (!(s = set_new(string_hash_func, string_compare_func))) {
- log_error("Failed to allocate set.");
- ret = -ENOMEM;
- goto finish;
- }
- }
-
- if (one_name) {
- if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
- goto finish;
- } else {
- STRV_FOREACH(name, args+1)
- if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
- ret = translate_bus_error_to_exit_status(r, &error);
- dbus_error_free(&error);
- }
- }
-
- if (!arg_no_block)
- if ((r = wait_for_jobs(bus, s)) < 0) {
- ret = r;
- goto finish;
- }
-
-finish:
- if (s)
- set_free_free(s);
-
- dbus_error_free(&error);
-
- return ret;
-}
-
-/* Ask systemd-logind, which might grant access to unprivileged users
- * through PolicyKit */
-static int reboot_with_logind(DBusConnection *bus, enum action a) {
-#ifdef HAVE_LOGIND
- const char *method;
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- dbus_bool_t interactive = true;
- int r;
-
- dbus_error_init(&error);
-
- polkit_agent_open_if_enabled();
-
- switch (a) {
-
- case ACTION_REBOOT:
- method = "Reboot";
- break;
-
- case ACTION_POWEROFF:
- method = "PowerOff";
- break;
-
- default:
- return -EINVAL;
- }
-
- m = dbus_message_new_method_call(
- "org.freedesktop.login1",
- "/org/freedesktop/login1",
- "org.freedesktop.login1.Manager",
- method);
- if (!m) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_BOOLEAN, &interactive,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- if (error_is_no_service(&error)) {
- log_debug("Failed to issue method call: %s", bus_error_message(&error));
- r = -ENOENT;
- goto finish;
- }
-
- if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
- log_debug("Failed to issue method call: %s", bus_error_message(&error));
- r = -EACCES;
- goto finish;
- }
-
- log_info("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-#else
- return -ENOSYS;
-#endif
-}
-
-static int start_special(DBusConnection *bus, char **args) {
- enum action a;
- int r;
-
- assert(bus);
- assert(args);
-
- a = verb_to_action(args[0]);
-
- if (arg_force >= 2 &&
- (a == ACTION_HALT ||
- a == ACTION_POWEROFF ||
- a == ACTION_REBOOT))
- halt_now(a);
-
- if (arg_force >= 1 &&
- (a == ACTION_HALT ||
- a == ACTION_POWEROFF ||
- a == ACTION_REBOOT ||
- a == ACTION_KEXEC ||
- a == ACTION_EXIT))
- return daemon_reload(bus, args);
-
- /* first try logind, to allow authentication with polkit */
- if (geteuid() != 0 &&
- (a == ACTION_POWEROFF ||
- a == ACTION_REBOOT)) {
- r = reboot_with_logind(bus, a);
- if (r >= 0)
- return r;
- }
-
- r = start_unit(bus, args);
- if (r >= 0)
- warn_wall(a);
-
- return r;
-}
-
-static int check_unit(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- const char
- *interface = "org.freedesktop.systemd1.Unit",
- *property = "ActiveState";
- int r = 3; /* According to LSB: "program is not running" */
- DBusError error;
- char **name;
-
- assert(bus);
- assert(args);
-
- dbus_error_init(&error);
-
- STRV_FOREACH(name, args+1) {
- 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, name,
- 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);
- dbus_message_unref(m);
- m = NULL;
- continue;
- }
-
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_OBJECT_PATH, &path,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", bus_error_message(&error));
- 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", bus_error_message(&error));
- 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") || streq(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;
-}
-
-static int kill_unit(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL;
- int r = 0;
- DBusError error;
- char **name;
-
- assert(bus);
- assert(args);
-
- dbus_error_init(&error);
-
- if (!arg_kill_who)
- arg_kill_who = "all";
-
- if (!arg_kill_mode)
- arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
-
- STRV_FOREACH(name, args+1) {
- DBusMessage *reply;
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "KillUnit"))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_STRING, &arg_kill_who,
- DBUS_TYPE_STRING, &arg_kill_mode,
- DBUS_TYPE_INT32, &arg_signal,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- dbus_error_free(&error);
- r = -EIO;
- }
-
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
- m = reply = NULL;
- }
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-typedef struct ExecStatusInfo {
- char *name;
-
- 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->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, start_timestamp_monotonic, exit_timestamp_monotonic;
- 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, &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)
- 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 *unit_file_state;
-
- const char *description;
- const char *following;
-
- const char *path;
- const char *default_control_group;
-
- const char *load_error;
- const char *result;
-
- usec_t inactive_exit_timestamp;
- usec_t inactive_exit_timestamp_monotonic;
- usec_t active_enter_timestamp;
- usec_t active_exit_timestamp;
- usec_t inactive_enter_timestamp;
-
- bool need_daemon_reload;
-
- /* Service */
- pid_t main_pid;
- pid_t control_pid;
- const char *status_text;
- bool running:1;
-#ifdef HAVE_SYSV_COMPAT
- bool is_sysv:1;
-#endif
-
- usec_t start_timestamp;
- usec_t exit_timestamp;
-
- int exit_code, exit_status;
-
- usec_t condition_timestamp;
- bool condition_result;
-
- /* 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;
- const char *on, *off, *ss;
- usec_t timestamp;
- char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
- char since2[FORMAT_TIMESTAMP_MAX], *s2;
-
- 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->following)
- printf("\t Follow: unit currently follows state of %s\n", i->following);
-
- if (streq_ptr(i->load_state, "error")) {
- on = ansi_highlight_red(true);
- off = ansi_highlight_red(false);
- } else
- on = off = "";
-
- if (i->load_error)
- printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
- else if (i->path && i->unit_file_state)
- printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, i->path, i->unit_file_state);
- else if (i->path)
- printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
- else
- printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
-
- ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
-
- if (streq_ptr(i->active_state, "failed")) {
- on = ansi_highlight_red(true);
- off = ansi_highlight_red(false);
- } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
- on = ansi_highlight_green(true);
- off = ansi_highlight_green(false);
- } else
- on = off = "";
-
- if (ss)
- printf("\t Active: %s%s (%s)%s",
- on,
- strna(i->active_state),
- ss,
- off);
- else
- printf("\t Active: %s%s%s",
- on,
- strna(i->active_state),
- off);
-
- if (!isempty(i->result) && !streq(i->result, "success"))
- printf(" (Result: %s)", i->result);
-
- timestamp = (streq_ptr(i->active_state, "active") ||
- streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
- (streq_ptr(i->active_state, "inactive") ||
- streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
- streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
- i->active_exit_timestamp;
-
- s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
- s2 = format_timestamp(since2, sizeof(since2), timestamp);
-
- if (s1)
- printf(" since %s; %s\n", s2, s1);
- else if (s2)
- printf(" since %s\n", s2);
- 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)
- printf("\t Where: %s\n", i->where);
- 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;
- bool good;
-
- /* Only show exited processes here */
- if (p->code == 0)
- continue;
-
- t = strv_join(p->argv, " ");
- 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_red(true);
- off = ansi_highlight_red(false);
- } else
- on = off = "";
-
- printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
-
- if (p->code == CLD_EXITED) {
- const char *c;
-
- printf("status=%i", p->status);
-
-#ifdef HAVE_SYSV_COMPAT
- if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
-#else
- if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
-#endif
- printf("/%s", c);
-
- } else
- printf("signal=%s", signal_to_string(p->status));
-
- printf(")%s\n", off);
-
- 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 PID: %u", (unsigned) i->main_pid);
-
- if (i->running) {
- char *t = NULL;
- get_process_comm(i->main_pid, &t);
- if (t) {
- printf(" (%s)", t);
- free(t);
- }
- } else if (i->exit_code > 0) {
- printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
-
- if (i->exit_code == CLD_EXITED) {
- const char *c;
-
- printf("status=%i", i->exit_status);
-
-#ifdef HAVE_SYSV_COMPAT
- if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
-#else
- if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
-#endif
- printf("/%s", c);
-
- } 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_comm(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 (arg_transport != TRANSPORT_SSH) {
- if ((c = columns()) > 18)
- c -= 18;
- else
- c = 0;
-
- show_cgroup_by_path(i->default_control_group, "\t\t ", c, false);
- }
- }
-
- if (i->id && arg_transport != TRANSPORT_SSH) {
- printf("\n");
- show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow);
- }
-
- if (i->need_daemon_reload)
- printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
- ansi_highlight_red(true),
- ansi_highlight_red(false),
- arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
-}
-
-static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
-
- assert(name);
- assert(iter);
- assert(i);
-
- switch (dbus_message_iter_get_arg_type(iter)) {
-
- case DBUS_TYPE_STRING: {
- const char *s;
-
- dbus_message_iter_get_basic(iter, &s);
-
- if (!isempty(s)) {
- 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->path = s;
-#ifdef HAVE_SYSV_COMPAT
- else if (streq(name, "SysVPath")) {
- i->is_sysv = true;
- i->path = s;
- }
-#endif
- 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;
- else if (streq(name, "Following"))
- i->following = s;
- else if (streq(name, "UnitFileState"))
- i->unit_file_state = s;
- else if (streq(name, "Result"))
- i->result = 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;
- else if (streq(name, "ConditionResult"))
- i->condition_result = 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;
- else if (streq(name, "ActiveEnterTimestamp"))
- i->active_enter_timestamp = (usec_t) u;
- else if (streq(name, "InactiveEnterTimestamp"))
- i->inactive_enter_timestamp = (usec_t) u;
- else if (streq(name, "InactiveExitTimestamp"))
- i->inactive_exit_timestamp = (usec_t) u;
- else if (streq(name, "InactiveExitTimestampMonotonic"))
- i->inactive_exit_timestamp_monotonic = (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;
- }
-
- 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 (!(info->name = strdup(name))) {
- free(info);
- 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;
- }
-
- case DBUS_TYPE_STRUCT: {
-
- if (streq(name, "LoadError")) {
- DBusMessageIter sub;
- const char *n, *message;
- int r;
-
- dbus_message_iter_recurse(iter, &sub);
-
- r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
- if (r < 0)
- return r;
-
- r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
- if (r < 0)
- return r;
-
- if (!isempty(message))
- i->load_error = message;
- }
-
- 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_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;
- } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
- const char *a = NULL, *b = NULL;
-
- if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
- bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
-
- if (arg_all || !isempty(a) || !isempty(b))
- printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
-
- return 0;
- }
-
- break;
- }
-
- case DBUS_TYPE_ARRAY:
-
- 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_errors=%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;
-
- 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 && streq(name, "ControlGroupAttributes")) {
- DBusMessageIter sub, sub2;
-
- dbus_message_iter_recurse(iter, &sub);
- while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
- const char *controller, *attr, *value;
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
-
- printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
- controller,
- attr,
- value);
- }
-
- 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_errors=%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 (generic_print_property(name, iter, arg_all) > 0)
- return 0;
-
- if (arg_all)
- printf("%s=[unprintable]\n", name);
-
- return 0;
-}
-
-static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
- DBusMessage *m = NULL, *reply = NULL;
- const char *interface = "";
- int r;
- 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", bus_error_message(&error));
- 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 (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, 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 (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 = 0;
-
- if (!show_properties)
- print_status_info(&info);
-
- if (!streq_ptr(info.active_state, "active") &&
- !streq_ptr(info.active_state, "reloading") &&
- streq(verb, "status"))
- /* According to LSB: "program not running" */
- r = 3;
-
- while ((p = info.exec)) {
- LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
- exec_status_info_free(p);
- }
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int show(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- int r, ret = 0;
- DBusError error;
- bool show_properties, new_line = false;
- char **name;
-
- assert(bus);
- assert(args);
-
- dbus_error_init(&error);
-
- show_properties = !streq(args[0], "status");
-
- if (show_properties)
- pager_open_if_enabled();
-
- if (show_properties && strv_length(args) <= 1) {
- /* If not argument is specified inspect the manager
- * itself */
-
- ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
- goto finish;
- }
-
- STRV_FOREACH(name, args+1) {
- const char *path = NULL;
- uint32_t id;
-
- if (safe_atou32(*name, &id) < 0) {
-
- /* Interpret as unit name */
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "LoadUnit"))) {
- log_error("Could not allocate message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- ret = -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", bus_error_message(&error));
- ret = -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.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
-
- if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
- ret = 4; /* According to LSB: "program or service status is unknown" */
- else
- ret = -EIO;
- goto finish;
- }
- }
-
- } else if (show_properties) {
-
- /* Interpret as job id */
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "GetJob"))) {
- log_error("Could not allocate message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &id,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- ret = -EIO;
- goto finish;
- }
- } else {
-
- /* Interpret as PID */
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "GetUnitByPID"))) {
- log_error("Could not allocate message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &id,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- ret = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- ret = -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", bus_error_message(&error));
- ret = -EIO;
- goto finish;
- }
-
- if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
- ret = r;
-
- 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 ret;
-}
-
-static int dump(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *text;
-
- dbus_error_init(&error);
-
- pager_open_if_enabled();
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "Dump"))) {
- 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", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_STRING, &text,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- fputs(text, stdout);
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int snapshot(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *name = "", *path, *id;
- dbus_bool_t cleanup = FALSE;
- DBusMessageIter iter, sub;
- const char
- *interface = "org.freedesktop.systemd1.Unit",
- *property = "Id";
-
- dbus_error_init(&error);
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "CreateSnapshot"))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
-
- if (strv_length(args) > 1)
- name = args[1];
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, &name,
- DBUS_TYPE_BOOLEAN, &cleanup,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- 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", bus_error_message(&error));
- 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.");
- 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", bus_error_message(&error));
- 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) {
- DBusMessage *m = NULL, *reply = NULL;
- int r;
- DBusError error;
- char **name;
-
- assert(bus);
- assert(args);
-
- dbus_error_init(&error);
-
- STRV_FOREACH(name, args+1) {
- 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, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- 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", bus_error_message(&error));
- 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_unref(reply);
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- 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 daemon_reload(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *method;
-
- dbus_error_init(&error);
-
- if (arg_action == ACTION_RELOAD)
- method = "Reload";
- else if (arg_action == ACTION_REEXEC)
- method = "Reexecute";
- else {
- assert(arg_action == ACTION_SYSTEMCTL);
-
- method =
- streq(args[0], "clear-jobs") ||
- streq(args[0], "cancel") ? "ClearJobs" :
- streq(args[0], "daemon-reexec") ? "Reexecute" :
- streq(args[0], "reset-failed") ? "ResetFailed" :
- streq(args[0], "halt") ? "Halt" :
- streq(args[0], "poweroff") ? "PowerOff" :
- streq(args[0], "reboot") ? "Reboot" :
- streq(args[0], "kexec") ? "KExec" :
- streq(args[0], "exit") ? "Exit" :
- /* "daemon-reload" */ "Reload";
- }
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
-
- if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
- /* There's always a fallback possible for
- * legacy actions. */
- r = -EADDRNOTAVAIL;
- 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;
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int reset_failed(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL;
- int r;
- DBusError error;
- char **name;
-
- assert(bus);
- dbus_error_init(&error);
-
- if (strv_length(args) <= 1)
- return daemon_reload(bus, args);
-
- STRV_FOREACH(name, args+1) {
- DBusMessage *reply;
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "ResetFailedUnit"))) {
- log_error("Could not allocate message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- dbus_message_unref(m);
- dbus_message_unref(reply);
- m = reply = NULL;
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int show_enviroment(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- DBusMessageIter iter, sub, sub2;
- int r;
- const char
- *interface = "org.freedesktop.systemd1.Manager",
- *property = "Environment";
-
- dbus_error_init(&error);
-
- pager_open_if_enabled();
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "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;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- 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_ARRAY ||
- dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- dbus_message_iter_recurse(&sub, &sub2);
-
- while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
- const char *text;
-
- if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- dbus_message_iter_get_basic(&sub2, &text);
- printf("%s\n", text);
-
- dbus_message_iter_next(&sub2);
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int set_environment(DBusConnection *bus, char **args) {
- DBusMessage *m = NULL, *reply = NULL;
- DBusError error;
- int r;
- const char *method;
- DBusMessageIter iter, sub;
- char **name;
-
- dbus_error_init(&error);
-
- method = streq(args[0], "set-environment")
- ? "SetEnvironment"
- : "UnsetEnvironment";
-
- if (!(m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method))) {
-
- log_error("Could not allocate message.");
- return -ENOMEM;
- }
-
- dbus_message_iter_init_append(m, &iter);
-
- if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- STRV_FOREACH(name, args+1)
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_iter_close_container(&iter, &sub)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- r = 0;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int enable_sysv_units(char **args) {
- int r = 0;
-
-#if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
- const char *verb = args[0];
- unsigned f = 1, t = 1;
- LookupPaths paths;
-
- if (arg_scope != UNIT_FILE_SYSTEM)
- return 0;
-
- if (!streq(verb, "enable") &&
- !streq(verb, "disable") &&
- !streq(verb, "is-enabled"))
- return 0;
-
- /* Processes all SysV units, and reshuffles the array so that
- * afterwards only the native units remain */
-
- zero(paths);
- r = lookup_paths_init(&paths, MANAGER_SYSTEM, false);
- if (r < 0)
- return r;
-
- r = 0;
-
- for (f = 1; args[f]; f++) {
- const char *name;
- char *p;
- bool found_native = false, found_sysv;
- unsigned c = 1;
- const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
- char **k, *l, *q = NULL;
- int j;
- pid_t pid;
- siginfo_t status;
-
- name = args[f];
-
- if (!endswith(name, ".service"))
- continue;
-
- if (path_is_absolute(name))
- continue;
-
- STRV_FOREACH(k, paths.unit_path) {
- p = NULL;
-
- if (!isempty(arg_root))
- asprintf(&p, "%s/%s/%s", arg_root, *k, name);
- else
- asprintf(&p, "%s/%s", *k, name);
-
- if (!p) {
- log_error("No memory");
- r = -ENOMEM;
- goto finish;
- }
-
- found_native = access(p, F_OK) >= 0;
- free(p);
-
- if (found_native)
- break;
- }
-
- if (found_native)
- continue;
-
- p = NULL;
- if (!isempty(arg_root))
- asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
- else
- asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
- if (!p) {
- log_error("No memory");
- r = -ENOMEM;
- goto finish;
- }
-
- p[strlen(p) - sizeof(".service") + 1] = 0;
- found_sysv = access(p, F_OK) >= 0;
-
- if (!found_sysv) {
- free(p);
- continue;
- }
-
- /* Mark this entry, so that we don't try enabling it as native unit */
- args[f] = (char*) "";
-
- log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
-
- if (!isempty(arg_root))
- argv[c++] = q = strappend("--root=", arg_root);
-
- argv[c++] = file_name_from_path(p);
- argv[c++] =
- streq(verb, "enable") ? "on" :
- streq(verb, "disable") ? "off" : "--level=5";
- argv[c] = NULL;
-
- l = strv_join((char**)argv, " ");
- if (!l) {
- log_error("No memory.");
- free(q);
- free(p);
- r = -ENOMEM;
- goto finish;
- }
-
- log_info("Executing %s", l);
- free(l);
-
- pid = fork();
- if (pid < 0) {
- log_error("Failed to fork: %m");
- free(p);
- free(q);
- r = -errno;
- goto finish;
- } else if (pid == 0) {
- /* Child */
-
- execv(argv[0], (char**) argv);
- _exit(EXIT_FAILURE);
- }
-
- free(p);
- free(q);
-
- j = wait_for_terminate(pid, &status);
- if (j < 0) {
- log_error("Failed to wait for child: %s", strerror(-r));
- r = j;
- goto finish;
- }
-
- if (status.si_code == CLD_EXITED) {
- if (streq(verb, "is-enabled")) {
- if (status.si_status == 0) {
- if (!arg_quiet)
- puts("enabled");
- r = 1;
- } else {
- if (!arg_quiet)
- puts("disabled");
- }
-
- } else if (status.si_status != 0) {
- r = -EINVAL;
- goto finish;
- }
- } else {
- r = -EPROTO;
- goto finish;
- }
- }
-
-finish:
- lookup_paths_free(&paths);
-
- /* Drop all SysV units */
- for (f = 1, t = 1; args[f]; f++) {
-
- if (isempty(args[f]))
- continue;
-
- args[t++] = args[f];
- }
-
- args[t] = NULL;
-
-#endif
- return r;
-}
-
-static int enable_unit(DBusConnection *bus, char **args) {
- const char *verb = args[0];
- UnitFileChange *changes = NULL;
- unsigned n_changes = 0, i;
- int carries_install_info = -1;
- DBusMessage *m = NULL, *reply = NULL;
- int r;
- DBusError error;
-
- r = enable_sysv_units(args);
- if (r < 0)
- return r;
-
- if (!args[1])
- return 0;
-
- dbus_error_init(&error);
-
- if (!bus || avoid_bus()) {
- if (streq(verb, "enable")) {
- r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
- carries_install_info = r;
- } else if (streq(verb, "disable"))
- r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
- else if (streq(verb, "reenable")) {
- r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
- carries_install_info = r;
- } else if (streq(verb, "link"))
- r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
- else if (streq(verb, "preset")) {
- r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
- carries_install_info = r;
- } else if (streq(verb, "mask"))
- r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
- else if (streq(verb, "unmask"))
- r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
- else
- assert_not_reached("Unknown verb");
-
- if (r < 0) {
- log_error("Operation failed: %s", strerror(-r));
- goto finish;
- }
-
- if (!arg_quiet) {
- for (i = 0; i < n_changes; i++) {
- if (changes[i].type == UNIT_FILE_SYMLINK)
- log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
- else
- log_info("rm '%s'", changes[i].path);
- }
- }
-
- } else {
- const char *method;
- bool send_force = true, expect_carries_install_info = false;
- dbus_bool_t a, b;
- DBusMessageIter iter, sub, sub2;
-
- if (streq(verb, "enable")) {
- method = "EnableUnitFiles";
- expect_carries_install_info = true;
- } else if (streq(verb, "disable")) {
- method = "DisableUnitFiles";
- send_force = false;
- } else if (streq(verb, "reenable")) {
- method = "ReenableUnitFiles";
- expect_carries_install_info = true;
- } else if (streq(verb, "link"))
- method = "LinkUnitFiles";
- else if (streq(verb, "preset")) {
- method = "PresetUnitFiles";
- expect_carries_install_info = true;
- } else if (streq(verb, "mask"))
- method = "MaskUnitFiles";
- else if (streq(verb, "unmask")) {
- method = "UnmaskUnitFiles";
- send_force = false;
- } else
- assert_not_reached("Unknown verb");
-
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- method);
- if (!m) {
- log_error("Out of memory");
- r = -ENOMEM;
- goto finish;
- }
-
- dbus_message_iter_init_append(m, &iter);
-
- r = bus_append_strv_iter(&iter, args+1);
- if (r < 0) {
- log_error("Failed to append unit files.");
- goto finish;
- }
-
- a = arg_runtime;
- if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
- log_error("Failed to append runtime boolean.");
- r = -ENOMEM;
- goto finish;
- }
-
- if (send_force) {
- b = arg_force;
-
- if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
- log_error("Failed to append force boolean.");
- r = -ENOMEM;
- goto finish;
- }
- }
-
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- if (!dbus_message_iter_init(reply, &iter)) {
- log_error("Failed to initialize iterator.");
- goto finish;
- }
-
- if (expect_carries_install_info) {
- r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
- if (r < 0) {
- log_error("Failed to parse reply.");
- goto finish;
- }
-
- carries_install_info = b;
- }
-
- if (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;
- }
-
- dbus_message_iter_recurse(&iter, &sub);
- while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
- const char *type, *path, *source;
-
- 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, &type, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
- bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
- log_error("Failed to parse reply.");
- r = -EIO;
- goto finish;
- }
-
- if (!arg_quiet) {
- if (streq(type, "symlink"))
- log_info("ln -s '%s' '%s'", source, path);
- else
- log_info("rm '%s'", path);
- }
-
- dbus_message_iter_next(&sub);
- }
-
- /* Try to reload if enabeld */
- if (!arg_no_reload)
- r = daemon_reload(bus, args);
- }
-
- if (carries_install_info == 0)
- log_warning("Warning: unit files do not carry install information. No operation executed.");
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- unit_file_changes_free(changes, n_changes);
-
- dbus_error_free(&error);
- return r;
-}
-
-static int unit_is_enabled(DBusConnection *bus, char **args) {
- DBusError error;
- int r;
- DBusMessage *m = NULL, *reply = NULL;
- bool enabled;
- char **name;
-
- dbus_error_init(&error);
-
- r = enable_sysv_units(args);
- if (r < 0)
- return r;
-
- enabled = r > 0;
-
- if (!bus || avoid_bus()) {
-
- STRV_FOREACH(name, args+1) {
- UnitFileState state;
-
- state = unit_file_get_state(arg_scope, arg_root, *name);
- if (state < 0) {
- r = state;
- goto finish;
- }
-
- if (state == UNIT_FILE_ENABLED ||
- state == UNIT_FILE_ENABLED_RUNTIME ||
- state == UNIT_FILE_STATIC)
- enabled = true;
-
- if (!arg_quiet)
- puts(unit_file_state_to_string(state));
- }
-
- } else {
- STRV_FOREACH(name, args+1) {
- const char *s;
-
- m = dbus_message_new_method_call(
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "GetUnitFileState");
- if (!m) {
- log_error("Out of memory");
- r = -ENOMEM;
- goto finish;
- }
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_STRING, name,
- DBUS_TYPE_INVALID)) {
- log_error("Could not append arguments to message.");
- r = -ENOMEM;
- goto finish;
- }
-
- reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
- if (!reply) {
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- if (!dbus_message_get_args(reply, &error,
- DBUS_TYPE_STRING, &s,
- DBUS_TYPE_INVALID)) {
- log_error("Failed to parse reply: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- dbus_message_unref(m);
- dbus_message_unref(reply);
- m = reply = NULL;
-
- if (streq(s, "enabled") ||
- streq(s, "enabled-runtime") ||
- streq(s, "static"))
- enabled = true;
-
- if (!arg_quiet)
- puts(s);
- }
- }
-
- r = enabled ? 0 : 1;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- dbus_error_free(&error);
- return r;
-}
-
-static int systemctl_help(void) {
-
- pager_open_if_enabled();
-
- printf("%s [OPTIONS...] {COMMAND} ...\n\n"
- "Query or send control commands to the systemd manager.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " -t --type=TYPE List only units of a particular type\n"
- " -p --property=NAME Show only properties by this name\n"
- " -a --all Show all units/properties, including dead/empty ones\n"
- " --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-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-wall Don't send wall message before halt/power-off/reboot\n"
- " --no-reload When enabling/disabling unit files, don't reload daemon\n"
- " configuration\n"
- " --no-legend Do not print a legend (column headers and hints)\n"
- " --no-pager Do not pipe output into a pager\n"
- " --no-ask-password\n"
- " Do not ask for system passwords\n"
- " --order When generating graph for dot, show only order\n"
- " --require When generating graph for dot, show only requirement\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"
- " --root=PATH Enable unit files in the specified root directory\n"
- " --runtime Enable unit files only temporarily until next reboot\n"
- " -n --lines=INTEGER Journal entries to show\n"
- " --follow Follow journal\n"
- " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
- " verbose, export, json, cat)\n\n"
- "Unit Commands:\n"
- " list-units List loaded units\n"
- " start [NAME...] Start (activate) one or more units\n"
- " stop [NAME...] Stop (deactivate) 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"
- " kill [NAME...] Send signal to processes of a unit\n"
- " is-active [NAME...] Check whether units are active\n"
- " status [NAME...|PID...] Show runtime status of one or more units\n"
- " show [NAME...|JOB...] Show properties of one or more\n"
- " units/jobs or the manager\n"
- " reset-failed [NAME...] Reset failed state for all, one, or more\n"
- " units\n"
- " load [NAME...] Load one or more units\n\n"
- "Unit File Commands:\n"
- " list-unit-files List installed unit files\n"
- " enable [NAME...] Enable one or more unit files\n"
- " disable [NAME...] Disable one or more unit files\n"
- " reenable [NAME...] Reenable one or more unit files\n"
- " preset [NAME...] Enable/disable one or more unit files\n"
- " based on preset configuration\n"
- " mask [NAME...] Mask one or more units\n"
- " unmask [NAME...] Unmask one or more units\n"
- " link [PATH...] Link one or more units files into\n"
- " the search path\n"
- " is-enabled [NAME...] Check whether unit files are enabled\n\n"
- "Job Commands:\n"
- " list-jobs List jobs\n"
- " cancel [JOB...] Cancel all, one, or more jobs\n\n"
- "Status Commands:\n"
- " dump Dump server status\n"
- " dot Dump dependency graph for dot(1)\n\n"
- "Snapshot Commands:\n"
- " snapshot [NAME] Create a snapshot\n"
- " delete [NAME...] Remove one or more snapshots\n\n"
- "Environment Commands:\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\n"
- "Manager Lifecycle Commands:\n"
- " daemon-reload Reload systemd manager configuration\n"
- " daemon-reexec Reexecute systemd manager\n\n"
- "System Commands:\n"
- " default Enter system default mode\n"
- " rescue Enter system rescue mode\n"
- " emergency Enter system emergency mode\n"
- " halt Shut down and halt the system\n"
- " poweroff Shut down and power-off the system\n"
- " reboot Shut down and reboot the system\n"
- " kexec Shut down and reboot the system with kexec\n"
- " exit Ask for user instance termination\n",
- program_invocation_short_name);
-
- return 0;
-}
-
-static int halt_help(void) {
-
- 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 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 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" :
- "Halt");
-
- return 0;
-}
-
-static int shutdown_help(void) {
-
- printf("%s [OPTIONS...] [TIME] [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 halt/power-off/reboot, just send warnings\n"
- " --no-wall Don't send wall message before halt/power-off/reboot\n"
- " -c Cancel a pending shutdown\n",
- program_invocation_short_name);
-
- return 0;
-}
-
-static int telinit_help(void) {
-
- 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 halt/power-off/reboot\n\n"
- "Commands:\n"
- " 0 Power-off the machine\n"
- " 6 Reboot the machine\n"
- " 2, 3, 4, 5 Start runlevelX.target unit\n"
- " 1, s, S Enter rescue mode\n"
- " q, Q Reload init daemon configuration\n"
- " u, U Reexecute init daemon\n",
- program_invocation_short_name);
-
- return 0;
-}
-
-static int runlevel_help(void) {
-
- 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);
-
- return 0;
-}
-
-static int systemctl_parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_FAIL = 0x100,
- ARG_IGNORE_DEPENDENCIES,
- ARG_VERSION,
- ARG_USER,
- ARG_SYSTEM,
- ARG_GLOBAL,
- ARG_NO_BLOCK,
- ARG_NO_LEGEND,
- ARG_NO_PAGER,
- ARG_NO_WALL,
- ARG_ORDER,
- ARG_REQUIRE,
- ARG_ROOT,
- ARG_FULL,
- ARG_NO_RELOAD,
- ARG_KILL_MODE,
- ARG_KILL_WHO,
- ARG_NO_ASK_PASSWORD,
- ARG_FAILED,
- ARG_RUNTIME,
- ARG_FOLLOW,
- ARG_FORCE
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "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 },
- { "no-block", no_argument, NULL, ARG_NO_BLOCK },
- { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- { "no-wall", no_argument, NULL, ARG_NO_WALL },
- { "quiet", no_argument, NULL, 'q' },
- { "order", no_argument, NULL, ARG_ORDER },
- { "require", no_argument, NULL, ARG_REQUIRE },
- { "root", required_argument, NULL, ARG_ROOT },
- { "force", no_argument, NULL, ARG_FORCE },
- { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
- { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
- { "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' },
- { "runtime", no_argument, NULL, ARG_RUNTIME },
- { "lines", required_argument, NULL, 'n' },
- { "follow", no_argument, NULL, ARG_FOLLOW },
- { "output", required_argument, NULL, 'o' },
- { NULL, 0, NULL, 0 }
- };
-
- int c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
-
- switch (c) {
-
- case 'h':
- systemctl_help();
- return 0;
-
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(DISTRIBUTION);
- puts(SYSTEMD_FEATURES);
- return 0;
-
- case 't':
- 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_FAIL:
- arg_job_mode = "fail";
- break;
-
- case ARG_IGNORE_DEPENDENCIES:
- arg_job_mode = "ignore-dependencies";
- break;
-
- case ARG_USER:
- arg_scope = UNIT_FILE_USER;
- break;
-
- case ARG_SYSTEM:
- arg_scope = UNIT_FILE_SYSTEM;
- break;
-
- case ARG_GLOBAL:
- arg_scope = UNIT_FILE_GLOBAL;
- break;
-
- case ARG_NO_BLOCK:
- arg_no_block = true;
- break;
-
- case ARG_NO_LEGEND:
- arg_no_legend = true;
- break;
-
- case ARG_NO_PAGER:
- arg_no_pager = 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_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;
-
- case ARG_FORCE:
- arg_force ++;
- break;
-
- case ARG_FOLLOW:
- arg_follow = true;
- break;
-
- case 'f':
- /* -f is short for both --follow and --force! */
- arg_force ++;
- arg_follow = true;
- break;
-
- case ARG_NO_RELOAD:
- arg_no_reload = true;
- break;
-
- case ARG_KILL_WHO:
- arg_kill_who = optarg;
- break;
-
- case ARG_KILL_MODE:
- arg_kill_mode = optarg;
- break;
-
- case 's':
- if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
- log_error("Failed to parse signal string %s.", optarg);
- return -EINVAL;
- }
- break;
-
- case ARG_NO_ASK_PASSWORD:
- arg_ask_password = false;
- break;
-
- case 'P':
- arg_transport = TRANSPORT_POLKIT;
- break;
-
- case 'H':
- arg_transport = TRANSPORT_SSH;
- arg_host = optarg;
- break;
-
- case ARG_RUNTIME:
- arg_runtime = true;
- break;
-
- case 'n':
- if (safe_atou(optarg, &arg_lines) < 0) {
- log_error("Failed to parse lines '%s'", optarg);
- return -EINVAL;
- }
- break;
-
- case 'o':
- arg_output = output_mode_from_string(optarg);
- if (arg_output < 0) {
- log_error("Unknown output '%s'.", optarg);
- return -EINVAL;
- }
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
- }
-
- if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
- log_error("Cannot access user instance remotely.");
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int halt_parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_HELP = 0x100,
- ARG_HALT,
- ARG_REBOOT,
- ARG_NO_WALL
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, ARG_HELP },
- { "halt", no_argument, NULL, ARG_HALT },
- { "poweroff", no_argument, NULL, 'p' },
- { "reboot", no_argument, NULL, ARG_REBOOT },
- { "force", no_argument, NULL, 'f' },
- { "wtmp-only", no_argument, NULL, 'w' },
- { "no-wtmp", no_argument, NULL, 'd' },
- { "no-sync", no_argument, NULL, 'n' },
- { "no-wall", no_argument, NULL, ARG_NO_WALL },
- { NULL, 0, NULL, 0 }
- };
-
- int c, runlevel;
-
- assert(argc >= 0);
- assert(argv);
-
- if (utmp_get_runlevel(&runlevel, NULL) >= 0)
- if (runlevel == '0' || runlevel == '6')
- arg_immediate = true;
-
- while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
- switch (c) {
-
- case ARG_HELP:
- halt_help();
- return 0;
-
- case ARG_HALT:
- arg_action = ACTION_HALT;
- break;
-
- case 'p':
- if (arg_action != ACTION_REBOOT)
- arg_action = ACTION_POWEROFF;
- break;
-
- case ARG_REBOOT:
- arg_action = ACTION_REBOOT;
- break;
-
- case 'f':
- arg_immediate = true;
- break;
-
- case 'w':
- arg_dry = true;
- break;
-
- case 'd':
- arg_no_wtmp = true;
- break;
-
- case 'n':
- arg_no_sync = true;
- break;
-
- case ARG_NO_WALL:
- arg_no_wall = true;
- break;
-
- case 'i':
- case 'h':
- /* Compatibility nops */
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
- }
-
- if (optind < argc) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int parse_time_spec(const char *t, usec_t *_u) {
- assert(t);
- assert(_u);
-
- if (streq(t, "now"))
- *_u = 0;
- else if (!strchr(t, ':')) {
- uint64_t u;
-
- if (safe_atou64(t, &u) < 0)
- return -EINVAL;
-
- *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
- } else {
- char *e = NULL;
- long hour, minute;
- struct tm tm;
- time_t s;
- usec_t n;
-
- errno = 0;
- hour = strtol(t, &e, 10);
- if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
- return -EINVAL;
-
- minute = strtol(e+1, &e, 10);
- if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
- return -EINVAL;
-
- n = now(CLOCK_REALTIME);
- s = (time_t) (n / USEC_PER_SEC);
-
- zero(tm);
- assert_se(localtime_r(&s, &tm));
-
- tm.tm_hour = (int) hour;
- tm.tm_min = (int) minute;
- tm.tm_sec = 0;
-
- assert_se(s = mktime(&tm));
-
- *_u = (usec_t) s * USEC_PER_SEC;
-
- while (*_u <= n)
- *_u += USEC_PER_DAY;
- }
-
- return 0;
-}
-
-static int shutdown_parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_HELP = 0x100,
- ARG_NO_WALL
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, ARG_HELP },
- { "halt", no_argument, NULL, 'H' },
- { "poweroff", no_argument, NULL, 'P' },
- { "reboot", no_argument, NULL, 'r' },
- { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
- { "no-wall", no_argument, NULL, ARG_NO_WALL },
- { NULL, 0, NULL, 0 }
- };
-
- int c, r;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
- switch (c) {
-
- case ARG_HELP:
- shutdown_help();
- return 0;
-
- case 'H':
- arg_action = ACTION_HALT;
- break;
-
- case 'P':
- arg_action = ACTION_POWEROFF;
- break;
-
- case 'r':
- if (kexec_loaded())
- arg_action = ACTION_KEXEC;
- else
- arg_action = ACTION_REBOOT;
- break;
-
- case 'K':
- arg_action = ACTION_KEXEC;
- break;
-
- case 'h':
- if (arg_action != ACTION_HALT)
- arg_action = ACTION_POWEROFF;
- break;
-
- case 'k':
- arg_dry = true;
- break;
-
- case ARG_NO_WALL:
- arg_no_wall = true;
- break;
-
- case 't':
- case 'a':
- /* Compatibility nops */
- break;
-
- case 'c':
- arg_action = ACTION_CANCEL_SHUTDOWN;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
- }
-
- if (argc > optind) {
- r = parse_time_spec(argv[optind], &arg_when);
- if (r < 0) {
- log_error("Failed to parse time specification: %s", argv[optind]);
- return r;
- }
- } else
- arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
-
- /* We skip the time argument */
- if (argc > optind + 1)
- arg_wall = argv + optind + 1;
-
- optind = argc;
-
- return 1;
-}
-
-static int telinit_parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_HELP = 0x100,
- ARG_NO_WALL
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, ARG_HELP },
- { "no-wall", no_argument, NULL, ARG_NO_WALL },
- { NULL, 0, NULL, 0 }
- };
-
- static const struct {
- char from;
- enum action to;
- } table[] = {
- { '0', ACTION_POWEROFF },
- { '6', ACTION_REBOOT },
- { '1', ACTION_RESCUE },
- { '2', ACTION_RUNLEVEL2 },
- { '3', ACTION_RUNLEVEL3 },
- { '4', ACTION_RUNLEVEL4 },
- { '5', ACTION_RUNLEVEL5 },
- { 's', ACTION_RESCUE },
- { 'S', ACTION_RESCUE },
- { 'q', ACTION_RELOAD },
- { 'Q', ACTION_RELOAD },
- { 'u', ACTION_REEXEC },
- { 'U', ACTION_REEXEC }
- };
-
- unsigned i;
- int c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
- switch (c) {
-
- case ARG_HELP:
- telinit_help();
- return 0;
-
- case ARG_NO_WALL:
- arg_no_wall = true;
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
- }
-
- if (optind >= argc) {
- telinit_help();
- return -EINVAL;
- }
-
- if (optind + 1 < argc) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- if (strlen(argv[optind]) != 1) {
- log_error("Expected single character argument.");
- return -EINVAL;
- }
-
- for (i = 0; i < ELEMENTSOF(table); i++)
- if (table[i].from == argv[optind][0])
- break;
-
- if (i >= ELEMENTSOF(table)) {
- log_error("Unknown command %s.", argv[optind]);
- return -EINVAL;
- }
-
- arg_action = table[i].to;
-
- optind ++;
-
- return 1;
-}
-
-static int runlevel_parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_HELP = 0x100,
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, ARG_HELP },
- { NULL, 0, NULL, 0 }
- };
-
- int c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
- switch (c) {
-
- case ARG_HELP:
- runlevel_help();
- return 0;
-
- case '?':
- return -EINVAL;
-
- default:
- log_error("Unknown option code %c", c);
- return -EINVAL;
- }
- }
-
- if (optind < argc) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int parse_argv(int argc, char *argv[]) {
- assert(argc >= 0);
- assert(argv);
-
- if (program_invocation_short_name) {
-
- if (strstr(program_invocation_short_name, "halt")) {
- arg_action = ACTION_HALT;
- return halt_parse_argv(argc, argv);
- } else if (strstr(program_invocation_short_name, "poweroff")) {
- arg_action = ACTION_POWEROFF;
- return halt_parse_argv(argc, argv);
- } else if (strstr(program_invocation_short_name, "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;
- return shutdown_parse_argv(argc, argv);
- } else if (strstr(program_invocation_short_name, "init")) {
-
- if (sd_booted() > 0) {
- arg_action = ACTION_INVALID;
- return telinit_parse_argv(argc, argv);
- } else {
- /* Hmm, so some other init system is
- * running, we need to forward this
- * request to it. For now we simply
- * guess that it is Upstart. */
-
- execv("/lib/upstart/telinit", argv);
-
- log_error("Couldn't find an alternative telinit implementation to spawn.");
- return -EIO;
- }
-
- } else if (strstr(program_invocation_short_name, "runlevel")) {
- arg_action = ACTION_RUNLEVEL;
- return runlevel_parse_argv(argc, argv);
- }
- }
-
- arg_action = ACTION_SYSTEMCTL;
- return systemctl_parse_argv(argc, argv);
-}
-
-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", bus_error_message(&error));
- 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 = -EADDRNOTAVAIL;
- goto finish;
- }
-
- log_error("Failed to issue method call: %s", bus_error_message(&error));
- r = -EIO;
- goto finish;
- }
-
- r = 1;
-
-finish:
- if (m)
- dbus_message_unref(m);
-
- if (reply)
- dbus_message_unref(reply);
-
- if (bus) {
- dbus_connection_flush(bus);
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
-
- dbus_error_free(&error);
-
- return r;
-}
-
-static int talk_initctl(void) {
- 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[], DBusError *error) {
-
- static const struct {
- const char* verb;
- const enum {
- MORE,
- LESS,
- EQUAL
- } argc_cmp;
- const int argc;
- int (* const dispatch)(DBusConnection *bus, char **args);
- } verbs[] = {
- { "list-units", LESS, 1, list_units },
- { "list-unit-files", EQUAL, 1, list_unit_files },
- { "list-jobs", EQUAL, 1, list_jobs },
- { "clear-jobs", EQUAL, 1, daemon_reload },
- { "load", MORE, 2, load_unit },
- { "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 },
- { "is-active", MORE, 2, check_unit },
- { "check", MORE, 2, check_unit },
- { "show", MORE, 1, show },
- { "status", MORE, 2, show },
- { "dump", EQUAL, 1, dump },
- { "dot", EQUAL, 1, dot },
- { "snapshot", LESS, 2, snapshot },
- { "delete", MORE, 2, delete_snapshot },
- { "daemon-reload", EQUAL, 1, daemon_reload },
- { "daemon-reexec", EQUAL, 1, daemon_reload },
- { "show-environment", EQUAL, 1, show_enviroment },
- { "set-environment", MORE, 2, set_environment },
- { "unset-environment", MORE, 2, set_environment },
- { "halt", EQUAL, 1, start_special },
- { "poweroff", EQUAL, 1, start_special },
- { "reboot", EQUAL, 1, start_special },
- { "kexec", EQUAL, 1, start_special },
- { "default", EQUAL, 1, start_special },
- { "rescue", EQUAL, 1, start_special },
- { "emergency", EQUAL, 1, start_special },
- { "exit", EQUAL, 1, start_special },
- { "reset-failed", MORE, 1, reset_failed },
- { "enable", MORE, 2, enable_unit },
- { "disable", MORE, 2, enable_unit },
- { "is-enabled", MORE, 2, unit_is_enabled },
- { "reenable", MORE, 2, enable_unit },
- { "preset", MORE, 2, enable_unit },
- { "mask", MORE, 2, enable_unit },
- { "unmask", MORE, 2, enable_unit },
- { "link", MORE, 2, enable_unit }
- };
-
- int left;
- unsigned i;
-
- assert(argc >= 0);
- assert(argv);
- assert(error);
-
- left = argc - optind;
-
- if (left <= 0)
- /* 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;
-
- if (i >= ELEMENTSOF(verbs)) {
- log_error("Unknown operation %s", argv[optind]);
- return -EINVAL;
- }
- }
-
- switch (verbs[i].argc_cmp) {
-
- case EQUAL:
- if (left != verbs[i].argc) {
- log_error("Invalid number of arguments.");
- return -EINVAL;
- }
-
- break;
-
- case MORE:
- if (left < verbs[i].argc) {
- log_error("Too few arguments.");
- return -EINVAL;
- }
-
- break;
-
- case LESS:
- if (left > verbs[i].argc) {
- log_error("Too many arguments.");
- return -EINVAL;
- }
-
- break;
-
- default:
- assert_not_reached("Unknown comparison operator.");
- }
-
- /* Require a bus connection for all operations but
- * enable/disable */
- if (!streq(verbs[i].verb, "enable") &&
- !streq(verbs[i].verb, "disable") &&
- !streq(verbs[i].verb, "is-enabled") &&
- !streq(verbs[i].verb, "list-unit-files") &&
- !streq(verbs[i].verb, "reenable") &&
- !streq(verbs[i].verb, "preset") &&
- !streq(verbs[i].verb, "mask") &&
- !streq(verbs[i].verb, "unmask") &&
- !streq(verbs[i].verb, "link")) {
-
- 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",
- dbus_error_is_set(error) ? error->message : "No connection to service manager.");
- return -EIO;
- }
-
- } else {
-
- if (!bus && !avoid_bus()) {
- log_error("Failed to get D-Bus connection: %s",
- dbus_error_is_set(error) ? error->message : "No connection to service manager.");
- return -EIO;
- }
- }
-
- return verbs[i].dispatch(bus, argv + optind);
-}
-
-static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
- int fd;
- struct msghdr msghdr;
- struct iovec iovec[2];
- union sockaddr_union sockaddr;
- struct sd_shutdown_command c;
-
- fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
- if (fd < 0)
- return -errno;
-
- zero(c);
- c.usec = t;
- c.mode = mode;
- c.dry_run = dry_run;
- c.warn_wall = warn;
-
- zero(sockaddr);
- sockaddr.sa.sa_family = AF_UNIX;
- strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
-
- zero(msghdr);
- msghdr.msg_name = &sockaddr;
- msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
-
- zero(iovec);
- iovec[0].iov_base = (char*) &c;
- iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
-
- if (isempty(message))
- msghdr.msg_iovlen = 1;
- else {
- iovec[1].iov_base = (char*) message;
- iovec[1].iov_len = strlen(message);
- msghdr.msg_iovlen = 2;
- }
- msghdr.msg_iov = iovec;
-
- if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
- close_nointr_nofail(fd);
- return -errno;
- }
-
- close_nointr_nofail(fd);
- return 0;
-}
-
-static int reload_with_fallback(DBusConnection *bus) {
-
- if (bus) {
- /* First, try systemd via D-Bus. */
- if (daemon_reload(bus, NULL) >= 0)
- return 0;
- }
-
- /* Nothing else worked, so let's try signals */
- assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
-
- if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
- log_error("kill() failed: %m");
- return -errno;
- }
-
- return 0;
-}
-
-static int start_with_fallback(DBusConnection *bus) {
-
- if (bus) {
- /* First, try systemd via D-Bus. */
- if (start_unit(bus, NULL) >= 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 (talk_upstart() > 0)
- goto done;
-
- /* Nothing else worked, so let's try
- * /dev/initctl */
- if (talk_initctl() > 0)
- goto done;
-
- log_error("Failed to talk to init daemon.");
- return -EIO;
-
-done:
- warn_wall(arg_action);
- return 0;
-}
-
-static void halt_now(enum action a) {
-
- /* Make sure C-A-D is handled by the kernel from this
- * point on... */
- reboot(RB_ENABLE_CAD);
-
- switch (a) {
-
- case ACTION_HALT:
- log_info("Halting.");
- reboot(RB_HALT_SYSTEM);
- break;
-
- case ACTION_POWEROFF:
- log_info("Powering off.");
- reboot(RB_POWER_OFF);
- break;
-
- case ACTION_REBOOT:
- log_info("Rebooting.");
- reboot(RB_AUTOBOOT);
- break;
-
- default:
- assert_not_reached("Unknown halt action.");
- }
-
- assert_not_reached("Uh? This shouldn't happen.");
-}
-
-static int halt_main(DBusConnection *bus) {
- int r;
-
- if (geteuid() != 0) {
- /* Try logind if we are a normal user and no special
- * mode applies. Maybe PolicyKit allows us to shutdown
- * the machine. */
-
- if (arg_when <= 0 &&
- !arg_dry &&
- !arg_immediate &&
- (arg_action == ACTION_POWEROFF ||
- arg_action == ACTION_REBOOT)) {
- r = reboot_with_logind(bus, arg_action);
- if (r >= 0)
- return r;
- }
-
- log_error("Must be root.");
- return -EPERM;
- }
-
- if (arg_when > 0) {
- char *m;
-
- m = strv_join(arg_wall, " ");
- r = send_shutdownd(arg_when,
- arg_action == ACTION_HALT ? 'H' :
- arg_action == ACTION_POWEROFF ? 'P' :
- arg_action == ACTION_KEXEC ? 'K' :
- 'r',
- arg_dry,
- !arg_no_wall,
- m);
- free(m);
-
- if (r < 0)
- log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
- else {
- char date[FORMAT_TIMESTAMP_MAX];
-
- log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
- format_timestamp(date, sizeof(date), arg_when));
- return 0;
- }
- }
-
- if (!arg_dry && !arg_immediate)
- return start_with_fallback(bus);
-
- if (!arg_no_wtmp) {
- if (sd_booted() > 0)
- log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
- else {
- r = utmp_put_shutdown();
- if (r < 0)
- log_warning("Failed to write utmp record: %s", strerror(-r));
- }
- }
-
- if (!arg_no_sync)
- sync();
-
- if (arg_dry)
- return 0;
-
- halt_now(arg_action);
- /* We should never reach this. */
- return -ENOSYS;
-}
-
-static int runlevel_main(void) {
- int r, runlevel, previous;
-
- r = utmp_get_runlevel(&runlevel, &previous);
- if (r < 0) {
- puts("unknown");
- return r;
- }
-
- printf("%c %c\n",
- previous <= 0 ? 'N' : previous,
- runlevel <= 0 ? 'N' : runlevel);
-
- return 0;
-}
-
-int main(int argc, char*argv[]) {
- int r, retval = EXIT_FAILURE;
- DBusConnection *bus = NULL;
- DBusError error;
-
- dbus_error_init(&error);
-
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r < 0)
- goto finish;
- else if (r == 0) {
- retval = EXIT_SUCCESS;
- goto finish;
- }
-
- /* /sbin/runlevel doesn't need to communicate via D-Bus, so
- * let's shortcut this */
- if (arg_action == ACTION_RUNLEVEL) {
- r = runlevel_main();
- retval = r < 0 ? EXIT_FAILURE : r;
- goto finish;
- }
-
- if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
- log_info("Running in chroot, ignoring request.");
- retval = 0;
- goto finish;
- }
-
- if (!avoid_bus()) {
- if (arg_transport == TRANSPORT_NORMAL)
- bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &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) {
-
- case ACTION_SYSTEMCTL:
- r = systemctl_main(bus, argc, argv, &error);
- break;
-
- case ACTION_HALT:
- case ACTION_POWEROFF:
- case ACTION_REBOOT:
- case ACTION_KEXEC:
- r = halt_main(bus);
- break;
-
- case ACTION_RUNLEVEL2:
- case ACTION_RUNLEVEL3:
- case ACTION_RUNLEVEL4:
- case ACTION_RUNLEVEL5:
- case ACTION_RESCUE:
- case ACTION_EMERGENCY:
- case ACTION_DEFAULT:
- r = start_with_fallback(bus);
- break;
-
- case ACTION_RELOAD:
- case ACTION_REEXEC:
- r = reload_with_fallback(bus);
- break;
-
- case ACTION_CANCEL_SHUTDOWN:
- r = send_shutdownd(0, 0, false, false, NULL);
- break;
-
- case ACTION_INVALID:
- case ACTION_RUNLEVEL:
- default:
- assert_not_reached("Unknown action");
- }
-
- retval = r < 0 ? EXIT_FAILURE : r;
-
-finish:
- if (bus) {
- dbus_connection_flush(bus);
- dbus_connection_close(bus);
- dbus_connection_unref(bus);
- }
-
- dbus_error_free(&error);
-
- dbus_shutdown();
-
- strv_free(arg_property);
-
- pager_close();
- ask_password_agent_close();
- polkit_agent_close();
-
- return retval;
-}
~ianmdlvl / elogind.git / blobdiff