+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 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 <stdio.h>
-#include <getopt.h>
-
-#include "sd-bus.h"
-#include "sd-event.h"
-#include "bus-util.h"
-#include "event-util.h"
-#include "strv.h"
-#include "build.h"
-#include "unit-name.h"
-#include "env-util.h"
-#include "path-util.h"
-#include "bus-error.h"
-#include "calendarspec.h"
-#include "ptyfwd.h"
-
-static bool arg_scope = false;
-static bool arg_remain_after_exit = false;
-static const char *arg_unit = NULL;
-static const char *arg_description = NULL;
-static const char *arg_slice = NULL;
-static bool arg_send_sighup = false;
-static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
-static const char *arg_host = NULL;
-static bool arg_user = false;
-static const char *arg_service_type = NULL;
-static const char *arg_exec_user = NULL;
-static const char *arg_exec_group = NULL;
-static int arg_nice = 0;
-static bool arg_nice_set = false;
-static char **arg_environment = NULL;
-static char **arg_property = NULL;
-static bool arg_pty = false;
-static usec_t arg_on_active = 0;
-static usec_t arg_on_boot = 0;
-static usec_t arg_on_startup = 0;
-static usec_t arg_on_unit_active = 0;
-static usec_t arg_on_unit_inactive = 0;
-static char *arg_on_calendar = NULL;
-static char **arg_timer_property = NULL;
-static bool arg_quiet = false;
-
-static void help(void) {
- printf("%s [OPTIONS...] {COMMAND} [ARGS...]\n\n"
- "Run the specified command in a transient scope or service or timer\n"
- "unit. If timer option is specified and unit is exist which is\n"
- "specified with --unit option then command can be ommited.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --user Run as user unit\n"
- " -H --host=[USER@]HOST Operate on remote host\n"
- " -M --machine=CONTAINER Operate on local container\n"
- " --scope Run this as scope rather than service\n"
- " --unit=UNIT Run under the specified unit name\n"
- " -p --property=NAME=VALUE Set unit property\n"
- " --description=TEXT Description for unit\n"
- " --slice=SLICE Run in the specified slice\n"
- " -r --remain-after-exit Leave service around until explicitly stopped\n"
- " --send-sighup Send SIGHUP when terminating\n"
- " --service-type=TYPE Service type\n"
- " --uid=USER Run as system user\n"
- " --gid=GROUP Run as system group\n"
- " --nice=NICE Nice level\n"
- " --setenv=NAME=VALUE Set environment\n"
- " -t --pty Run service on pseudo tty\n"
- " -q --quiet Suppress information messages during runtime\n\n"
- "Timer options:\n\n"
- " --on-active=SECONDS Run after SECONDS delay\n"
- " --on-boot=SECONDS Run SECONDS after machine was booted up\n"
- " --on-startup=SECONDS Run SECONDS after systemd activation\n"
- " --on-unit-active=SECONDS Run SECONDS after the last activation\n"
- " --on-unit-inactive=SECONDS Run SECONDS after the last deactivation\n"
- " --on-calendar=SPEC Realtime timer\n"
- " --timer-property=NAME=VALUE Set timer unit property\n",
- program_invocation_short_name);
-}
-
-static bool with_timer(void) {
- return arg_on_active || arg_on_boot || arg_on_startup || arg_on_unit_active || arg_on_unit_inactive || arg_on_calendar;
-}
-
-static int parse_argv(int argc, char *argv[]) {
-
- enum {
- ARG_VERSION = 0x100,
- ARG_USER,
- ARG_SYSTEM,
- ARG_SCOPE,
- ARG_UNIT,
- ARG_DESCRIPTION,
- ARG_SLICE,
- ARG_SEND_SIGHUP,
- ARG_EXEC_USER,
- ARG_EXEC_GROUP,
- ARG_SERVICE_TYPE,
- ARG_NICE,
- ARG_SETENV,
- ARG_TTY,
- ARG_ON_ACTIVE,
- ARG_ON_BOOT,
- ARG_ON_STARTUP,
- ARG_ON_UNIT_ACTIVE,
- ARG_ON_UNIT_INACTIVE,
- ARG_ON_CALENDAR,
- ARG_TIMER_PROPERTY
- };
-
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "user", no_argument, NULL, ARG_USER },
- { "system", no_argument, NULL, ARG_SYSTEM },
- { "scope", no_argument, NULL, ARG_SCOPE },
- { "unit", required_argument, NULL, ARG_UNIT },
- { "description", required_argument, NULL, ARG_DESCRIPTION },
- { "slice", required_argument, NULL, ARG_SLICE },
- { "remain-after-exit", no_argument, NULL, 'r' },
- { "send-sighup", no_argument, NULL, ARG_SEND_SIGHUP },
- { "host", required_argument, NULL, 'H' },
- { "machine", required_argument, NULL, 'M' },
- { "service-type", required_argument, NULL, ARG_SERVICE_TYPE },
- { "uid", required_argument, NULL, ARG_EXEC_USER },
- { "gid", required_argument, NULL, ARG_EXEC_GROUP },
- { "nice", required_argument, NULL, ARG_NICE },
- { "setenv", required_argument, NULL, ARG_SETENV },
- { "property", required_argument, NULL, 'p' },
- { "tty", no_argument, NULL, 't' },
- { "quiet", no_argument, NULL, 'q' },
- { "on-active", required_argument, NULL, ARG_ON_ACTIVE },
- { "on-boot", required_argument, NULL, ARG_ON_BOOT },
- { "on-startup", required_argument, NULL, ARG_ON_STARTUP },
- { "on-unit-active", required_argument, NULL, ARG_ON_UNIT_ACTIVE },
- { "on-unit-inactive", required_argument, NULL, ARG_ON_UNIT_INACTIVE },
- { "on-calendar", required_argument, NULL, ARG_ON_CALENDAR },
- { "timer-property", required_argument, NULL, ARG_TIMER_PROPERTY },
- {},
- };
-
- int r, c;
- CalendarSpec *spec = NULL;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "+hrH:M:p:tq", options, NULL)) >= 0)
-
- switch (c) {
-
- case 'h':
- help();
- return 0;
-
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
-
- case ARG_USER:
- arg_user = true;
- break;
-
- case ARG_SYSTEM:
- arg_user = false;
- break;
-
- case ARG_SCOPE:
- arg_scope = true;
- break;
-
- case ARG_UNIT:
- arg_unit = optarg;
- break;
-
- case ARG_DESCRIPTION:
- arg_description = optarg;
- break;
-
- case ARG_SLICE:
- arg_slice = optarg;
- break;
-
- case ARG_SEND_SIGHUP:
- arg_send_sighup = true;
- break;
-
- case 'r':
- arg_remain_after_exit = true;
- break;
-
- case 'H':
- arg_transport = BUS_TRANSPORT_REMOTE;
- arg_host = optarg;
- break;
-
- case 'M':
- arg_transport = BUS_TRANSPORT_MACHINE;
- arg_host = optarg;
- break;
-
- case ARG_SERVICE_TYPE:
- arg_service_type = optarg;
- break;
-
- case ARG_EXEC_USER:
- arg_exec_user = optarg;
- break;
-
- case ARG_EXEC_GROUP:
- arg_exec_group = optarg;
- break;
-
- case ARG_NICE:
- r = safe_atoi(optarg, &arg_nice);
- if (r < 0 || arg_nice < PRIO_MIN || arg_nice >= PRIO_MAX) {
- log_error("Failed to parse nice value");
- return -EINVAL;
- }
-
- arg_nice_set = true;
- break;
-
- case ARG_SETENV:
- if (strv_extend(&arg_environment, optarg) < 0)
- return log_oom();
-
- break;
-
- case 'p':
- if (strv_extend(&arg_property, optarg) < 0)
- return log_oom();
-
- break;
-
- case 't':
- arg_pty = true;
- break;
-
- case 'q':
- arg_quiet = true;
- break;
-
- case ARG_ON_ACTIVE:
-
- r = parse_sec(optarg, &arg_on_active);
- if (r < 0) {
- log_error("Failed to parse timer value: %s", optarg);
- return r;
- }
-
- break;
-
- case ARG_ON_BOOT:
-
- r = parse_sec(optarg, &arg_on_boot);
- if (r < 0) {
- log_error("Failed to parse timer value: %s", optarg);
- return r;
- }
-
- break;
-
- case ARG_ON_STARTUP:
-
- r = parse_sec(optarg, &arg_on_startup);
- if (r < 0) {
- log_error("Failed to parse timer value: %s", optarg);
- return r;
- }
-
- break;
-
- case ARG_ON_UNIT_ACTIVE:
-
- r = parse_sec(optarg, &arg_on_unit_active);
- if (r < 0) {
- log_error("Failed to parse timer value: %s", optarg);
- return r;
- }
-
- break;
-
- case ARG_ON_UNIT_INACTIVE:
-
- r = parse_sec(optarg, &arg_on_unit_inactive);
- if (r < 0) {
- log_error("Failed to parse timer value: %s", optarg);
- return r;
- }
-
- break;
-
- case ARG_ON_CALENDAR:
-
- r = calendar_spec_from_string(optarg, &spec);
- if (r < 0) {
- log_error("Invalid calendar spec: %s", optarg);
- return r;
- }
- free(spec);
- arg_on_calendar = optarg;
- break;
-
- case ARG_TIMER_PROPERTY:
-
- if (strv_extend(&arg_timer_property, optarg) < 0)
- return log_oom();
-
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option");
- }
-
- if ((optind >= argc) && (!arg_unit || !with_timer())) {
- log_error("Command line to execute required.");
- return -EINVAL;
- }
-
- if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL) {
- log_error("Execution in user context is not supported on non-local systems.");
- return -EINVAL;
- }
-
- if (arg_scope && arg_transport != BUS_TRANSPORT_LOCAL) {
- log_error("Scope execution is not supported on non-local systems.");
- return -EINVAL;
- }
-
- if (arg_scope && (arg_remain_after_exit || arg_service_type)) {
- log_error("--remain-after-exit and --service-type= are not supported in --scope mode.");
- return -EINVAL;
- }
-
- if (arg_pty && (with_timer() || arg_scope)) {
- log_error("--pty is not compatible in timer or --scope mode.");
- return -EINVAL;
- }
-
- if (arg_scope && with_timer()) {
- log_error("Timer options are not supported in --scope mode.");
- return -EINVAL;
- }
-
- if (arg_timer_property && !with_timer()) {
- log_error("--timer-property= has no effect without any other timer options.");
- return -EINVAL;
- }
-
- return 1;
-}
-
-static int transient_unit_set_properties(sd_bus_message *m, char **properties) {
- char **i;
- int r;
-
- r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
- if (r < 0)
- return r;
-
- STRV_FOREACH(i, properties) {
- r = sd_bus_message_open_container(m, 'r', "sv");
- if (r < 0)
- return r;
-
- r = bus_append_unit_property_assignment(m, *i);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-static int transient_cgroup_set_properties(sd_bus_message *m) {
- int r;
- assert(m);
-
- if (!isempty(arg_slice)) {
- _cleanup_free_ char *slice;
-
- slice = unit_name_mangle_with_suffix(arg_slice, MANGLE_NOGLOB, ".slice");
- if (!slice)
- return -ENOMEM;
-
- r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-static int transient_kill_set_properties(sd_bus_message *m) {
- assert(m);
-
- if (arg_send_sighup)
- return sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", arg_send_sighup);
- else
- return 0;
-}
-
-static int transient_service_set_properties(sd_bus_message *m, char **argv, const char *pty_path) {
- int r;
-
- assert(m);
-
- r = transient_unit_set_properties(m, arg_property);
- if (r < 0)
- return r;
-
- r = transient_kill_set_properties(m);
- if (r < 0)
- return r;
-
- r = transient_cgroup_set_properties(m);
- if (r < 0)
- return r;
-
- if (arg_remain_after_exit) {
- r = sd_bus_message_append(m, "(sv)", "RemainAfterExit", "b", arg_remain_after_exit);
- if (r < 0)
- return r;
- }
-
- if (arg_service_type) {
- r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_service_type);
- if (r < 0)
- return r;
- }
-
- if (arg_exec_user) {
- r = sd_bus_message_append(m, "(sv)", "User", "s", arg_exec_user);
- if (r < 0)
- return r;
- }
-
- if (arg_exec_group) {
- r = sd_bus_message_append(m, "(sv)", "Group", "s", arg_exec_group);
- if (r < 0)
- return r;
- }
-
- if (arg_nice_set) {
- r = sd_bus_message_append(m, "(sv)", "Nice", "i", arg_nice);
- if (r < 0)
- return r;
- }
-
- if (pty_path) {
- const char *e;
-
- r = sd_bus_message_append(m,
- "(sv)(sv)(sv)(sv)",
- "StandardInput", "s", "tty",
- "StandardOutput", "s", "tty",
- "StandardError", "s", "tty",
- "TTYPath", "s", pty_path);
- if (r < 0)
- return r;
-
- e = getenv("TERM");
- if (e) {
- char *n;
-
- n = strjoina("TERM=", e);
- r = sd_bus_message_append(m,
- "(sv)",
- "Environment", "as", 1, n);
- if (r < 0)
- return r;
- }
- }
-
- if (!strv_isempty(arg_environment)) {
- r = sd_bus_message_open_container(m, 'r', "sv");
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(m, "s", "Environment");
- if (r < 0)
- return r;
-
- r = sd_bus_message_open_container(m, 'v', "as");
- if (r < 0)
- return r;
-
- r = sd_bus_message_append_strv(m, arg_environment);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
- }
-
- /* Exec container */
- {
- r = sd_bus_message_open_container(m, 'r', "sv");
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(m, "s", "ExecStart");
- if (r < 0)
- return r;
-
- r = sd_bus_message_open_container(m, 'v', "a(sasb)");
- if (r < 0)
- return r;
-
- r = sd_bus_message_open_container(m, 'a', "(sasb)");
- if (r < 0)
- return r;
-
- r = sd_bus_message_open_container(m, 'r', "sasb");
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(m, "s", argv[0]);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append_strv(m, argv);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(m, "b", false);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-static int transient_scope_set_properties(sd_bus_message *m) {
- int r;
-
- assert(m);
-
- r = transient_unit_set_properties(m, arg_property);
- if (r < 0)
- return r;
-
- r = transient_kill_set_properties(m);
- if (r < 0)
- return r;
-
- r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, (uint32_t) getpid());
- if (r < 0)
- return r;
-
- return 0;
-}
-
-static int transient_timer_set_properties(sd_bus_message *m) {
- int r;
-
- assert(m);
-
- r = transient_unit_set_properties(m, arg_timer_property);
- if (r < 0)
- return r;
-
- if (arg_on_active) {
- r = sd_bus_message_append(m, "(sv)", "OnActiveSec", "t", arg_on_active);
- if (r < 0)
- return r;
- }
-
- if (arg_on_boot) {
- r = sd_bus_message_append(m, "(sv)", "OnBootSec", "t", arg_on_boot);
- if (r < 0)
- return r;
- }
-
- if (arg_on_startup) {
- r = sd_bus_message_append(m, "(sv)", "OnStartupSec", "t", arg_on_startup);
- if (r < 0)
- return r;
- }
-
- if (arg_on_unit_active) {
- r = sd_bus_message_append(m, "(sv)", "OnUnitActiveSec", "t", arg_on_unit_active);
- if (r < 0)
- return r;
- }
-
- if (arg_on_unit_inactive) {
- r = sd_bus_message_append(m, "(sv)", "OnUnitInactiveSec", "t", arg_on_unit_inactive);
- if (r < 0)
- return r;
- }
-
- if (arg_on_calendar) {
- r = sd_bus_message_append(m, "(sv)", "OnCalendar", "s", arg_on_calendar);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-static int start_transient_service(
- sd_bus *bus,
- char **argv) {
-
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- _cleanup_free_ char *service = NULL, *pty_path = NULL;
- _cleanup_close_ int master = -1;
- int r;
-
- assert(bus);
- assert(argv);
-
- if (arg_pty) {
-
- if (arg_transport == BUS_TRANSPORT_LOCAL) {
- master = posix_openpt(O_RDWR|O_NOCTTY|O_CLOEXEC|O_NDELAY);
- if (master < 0)
- return log_error_errno(errno, "Failed to acquire pseudo tty: %m");
-
- r = ptsname_malloc(master, &pty_path);
- if (r < 0)
- return log_error_errno(r, "Failed to determine tty name: %m");
-
- } else if (arg_transport == BUS_TRANSPORT_MACHINE) {
- _cleanup_bus_unref_ sd_bus *system_bus = NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- const char *s;
-
- r = sd_bus_open_system(&system_bus);
- if (r < 0)
- log_error_errno(r, "Failed to connect to system bus: %m");
-
- r = sd_bus_call_method(system_bus,
- "org.freedesktop.machine1",
- "/org/freedesktop/machine1",
- "org.freedesktop.machine1.Manager",
- "OpenMachinePTY",
- &error,
- &reply,
- "s", arg_host);
- if (r < 0) {
- log_error("Failed to get machine PTY: %s", bus_error_message(&error, -r));
- return r;
- }
-
- r = sd_bus_message_read(reply, "hs", &master, &s);
- if (r < 0)
- return bus_log_parse_error(r);
-
- master = fcntl(master, F_DUPFD_CLOEXEC, 3);
- if (master < 0)
- return log_error_errno(errno, "Failed to duplicate master fd: %m");
-
- pty_path = strdup(s);
- if (!pty_path)
- return log_oom();
- } else
- assert_not_reached("Can't allocate tty via ssh");
-
- if (unlockpt(master) < 0)
- return log_error_errno(errno, "Failed to unlock tty: %m");
- }
-
- if (arg_unit) {
- service = unit_name_mangle_with_suffix(arg_unit, MANGLE_NOGLOB, ".service");
- if (!service)
- return log_oom();
- } else if (asprintf(&service, "run-"PID_FMT".service", getpid()) < 0)
- return log_oom();
-
- r = sd_bus_message_new_method_call(
- bus,
- &m,
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "StartTransientUnit");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Name and mode */
- r = sd_bus_message_append(m, "ss", service, "fail");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Properties */
- r = sd_bus_message_open_container(m, 'a', "(sv)");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = transient_service_set_properties(m, argv, pty_path);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Auxiliary units */
- r = sd_bus_message_append(m, "a(sa(sv))", 0);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_call(bus, m, 0, &error, NULL);
- if (r < 0) {
- log_error("Failed to start transient service unit: %s", bus_error_message(&error, -r));
- return r;
- }
-
- if (master >= 0) {
- _cleanup_(pty_forward_freep) PTYForward *forward = NULL;
- _cleanup_event_unref_ sd_event *event = NULL;
- sigset_t mask;
- char last_char = 0;
-
- r = sd_event_default(&event);
- if (r < 0)
- return log_error_errno(r, "Failed to get event loop: %m");
-
- assert_se(sigemptyset(&mask) == 0);
- sigset_add_many(&mask, SIGWINCH, SIGTERM, SIGINT, -1);
- assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
-
- sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
- sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
-
- if (!arg_quiet)
- log_info("Running as unit %s.\nPress ^] three times within 1s to disconnect TTY.", service);
-
- r = pty_forward_new(event, master, false, false, &forward);
- if (r < 0)
- return log_error_errno(r, "Failed to create PTY forwarder: %m");
-
- r = sd_event_loop(event);
- if (r < 0)
- return log_error_errno(r, "Failed to run event loop: %m");
-
- pty_forward_get_last_char(forward, &last_char);
-
- forward = pty_forward_free(forward);
-
- if (!arg_quiet && last_char != '\n')
- fputc('\n', stdout);
-
- } else if (!arg_quiet)
- log_info("Running as unit %s.", service);
-
- return 0;
-}
-
-static int start_transient_scope(
- sd_bus *bus,
- char **argv) {
-
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_strv_free_ char **env = NULL, **user_env = NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- _cleanup_free_ char *scope = NULL;
- int r;
-
- assert(bus);
- assert(argv);
-
- if (arg_unit) {
- scope = unit_name_mangle_with_suffix(arg_unit, MANGLE_NOGLOB, ".scope");
- if (!scope)
- return log_oom();
- } else if (asprintf(&scope, "run-"PID_FMT".scope", getpid()) < 0)
- return log_oom();
-
- r = sd_bus_message_new_method_call(
- bus,
- &m,
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "StartTransientUnit");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Name and Mode */
- r = sd_bus_message_append(m, "ss", scope, "fail");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Properties */
- r = sd_bus_message_open_container(m, 'a', "(sv)");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = transient_scope_set_properties(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Auxiliary units */
- r = sd_bus_message_append(m, "a(sa(sv))", 0);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_call(bus, m, 0, &error, NULL);
- if (r < 0) {
- log_error("Failed to start transient scope unit: %s", bus_error_message(&error, -r));
- return r;
- }
-
- if (arg_nice_set) {
- if (setpriority(PRIO_PROCESS, 0, arg_nice) < 0)
- return log_error_errno(errno, "Failed to set nice level: %m");
- }
-
- if (arg_exec_group) {
- gid_t gid;
-
- r = get_group_creds(&arg_exec_group, &gid);
- if (r < 0)
- return log_error_errno(r, "Failed to resolve group %s: %m", arg_exec_group);
-
- if (setresgid(gid, gid, gid) < 0)
- return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
- }
-
- if (arg_exec_user) {
- const char *home, *shell;
- uid_t uid;
- gid_t gid;
-
- r = get_user_creds(&arg_exec_user, &uid, &gid, &home, &shell);
- if (r < 0)
- return log_error_errno(r, "Failed to resolve user %s: %m", arg_exec_user);
-
- r = strv_extendf(&user_env, "HOME=%s", home);
- if (r < 0)
- return log_oom();
-
- r = strv_extendf(&user_env, "SHELL=%s", shell);
- if (r < 0)
- return log_oom();
-
- r = strv_extendf(&user_env, "USER=%s", arg_exec_user);
- if (r < 0)
- return log_oom();
-
- r = strv_extendf(&user_env, "LOGNAME=%s", arg_exec_user);
- if (r < 0)
- return log_oom();
-
- if (!arg_exec_group) {
- if (setresgid(gid, gid, gid) < 0)
- return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
- }
-
- if (setresuid(uid, uid, uid) < 0)
- return log_error_errno(errno, "Failed to change UID to " UID_FMT ": %m", uid);
- }
-
- env = strv_env_merge(3, environ, user_env, arg_environment);
- if (!env)
- return log_oom();
-
- if (!arg_quiet)
- log_info("Running as unit %s.", scope);
-
- execvpe(argv[0], argv, env);
-
- return log_error_errno(errno, "Failed to execute: %m");
-}
-
-static int start_transient_timer(
- sd_bus *bus,
- char **argv) {
-
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
- _cleanup_free_ char *timer = NULL, *service = NULL;
- int r;
-
- assert(bus);
- assert(argv);
-
- if (arg_unit) {
- switch(unit_name_to_type(arg_unit)) {
-
- case UNIT_SERVICE:
- service = strdup(arg_unit);
- if (!service)
- return log_oom();
-
- timer = unit_name_change_suffix(service, ".timer");
- if (!timer)
- return log_oom();
- break;
-
- case UNIT_TIMER:
- timer = strdup(arg_unit);
- if (!timer)
- return log_oom();
-
- service = unit_name_change_suffix(timer, ".service");
- if (!service)
- return log_oom();
- break;
-
- default:
- service = unit_name_mangle_with_suffix(arg_unit, MANGLE_NOGLOB, ".service");
- if (!service)
- return log_oom();
-
- timer = unit_name_mangle_with_suffix(arg_unit, MANGLE_NOGLOB, ".timer");
- if (!timer)
- return log_oom();
-
- break;
- }
- } else if ((asprintf(&service, "run-"PID_FMT".service", getpid()) < 0) ||
- (asprintf(&timer, "run-"PID_FMT".timer", getpid()) < 0))
- return log_oom();
-
- r = sd_bus_message_new_method_call(
- bus,
- &m,
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- "org.freedesktop.systemd1.Manager",
- "StartTransientUnit");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Name and Mode */
- r = sd_bus_message_append(m, "ss", timer, "fail");
- if (r < 0)
- return bus_log_create_error(r);
-
- /* Properties */
- r = sd_bus_message_open_container(m, 'a', "(sv)");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = transient_timer_set_properties(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'a', "(sa(sv))");
- if (r < 0)
- return bus_log_create_error(r);
-
- if (argv[0]) {
- r = sd_bus_message_open_container(m, 'r', "sa(sv)");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_append(m, "s", service);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'a', "(sv)");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = transient_service_set_properties(m, argv, NULL);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_call(bus, m, 0, &error, NULL);
- if (r < 0) {
- log_error("Failed to start transient timer unit: %s", bus_error_message(&error, -r));
- return r;
- }
-
- log_info("Running as unit %s.", timer);
- if (argv[0])
- log_info("Will run as unit %s.", service);
-
- return 0;
-}
-
-int main(int argc, char* argv[]) {
- _cleanup_bus_close_unref_ sd_bus *bus = NULL;
- _cleanup_free_ char *description = NULL, *command = NULL;
- int r;
-
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- goto finish;
-
- if (argc > optind) {
- r = find_binary(argv[optind], arg_transport == BUS_TRANSPORT_LOCAL, &command);
- if (r < 0) {
- log_error_errno(r, "Failed to find executable %s%s: %m",
- argv[optind],
- arg_transport == BUS_TRANSPORT_LOCAL ? "" : " on local system");
- goto finish;
- }
- argv[optind] = command;
- }
-
- if (!arg_description) {
- description = strv_join(argv + optind, " ");
- if (!description) {
- r = log_oom();
- goto finish;
- }
-
- if (arg_unit && isempty(description)) {
- free(description);
- description = strdup(arg_unit);
-
- if (!description) {
- r = log_oom();
- goto finish;
- }
- }
-
- arg_description = description;
- }
-
- r = bus_open_transport_systemd(arg_transport, arg_host, arg_user, &bus);
- if (r < 0) {
- log_error_errno(r, "Failed to create bus connection: %m");
- goto finish;
- }
-
- if (arg_scope)
- r = start_transient_scope(bus, argv + optind);
- else if (with_timer())
- r = start_transient_timer(bus, argv + optind);
- else
- r = start_transient_service(bus, argv + optind);
-
-finish:
- strv_free(arg_environment);
- strv_free(arg_property);
- strv_free(arg_timer_property);
-
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
~ianmdlvl / elogind.git / blobdiff